651 results on '"Huang FY"'
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2. Neutrophil transit time and localization within the megakaryocyte define morphologically distinct forms of emperipolesis
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Huang Fy, Felix A Radtke, Pierre Cunin, Peter A. Nigrovic, and Ricardo Grieshaber-Bouyer
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Emperipolesis ,medicine.anatomical_structure ,Megakaryocyte ,Perinuclear endoplasmic reticulum ,Chemistry ,Cytoplasm ,Endoplasmic reticulum ,Ultrastructure ,medicine ,Vacuole ,Nucleus ,Cell biology - Abstract
In emperipolesis, neutrophils transit through megakaryocytes, but it is unknown whether this interaction represents a single type of cell-in-cell interaction or a set of distinct processes. Using an in vitro model of murine emperipolesis, we characterized neutrophils entering megakaryocytes using live-cell spinning disk microscopy and electron microscopy. Approximately half of neutrophils exited the megakaryocyte rapidly, typically in 10 minutes or less, displaying ameboid morphology as they passed through the host cell (fast emperipolesis). The remaining neutrophils assumed a sessile morphology, most remaining within the megakaryocyte for at least 60 minutes (slow emperipolesis). These neutrophils typically localized near the megakaryocyte nucleus. By ultrastructural assessment, all internalized neutrophils remained morphologically intact. Most neutrophils resided within emperisomes, but some could be visualized exiting the emperisome into the cell cytoplasm. Neutrophils in the cytoplasm assumed close contact with the platelet-forming demarcation membrane system or with the perinuclear endoplasmic reticulum, as confirmed by immunofluorescence microscopy. Together, these findings reveal that megakaryocyte emperipolesis reflects at least two processes, fast and slow emperipolesis, each with its own characteristic transit time, morphology, and intracellular localization, suggesting distinct functions.Key PointsNeutrophil passage through megakaryocytes, termed emperipolesis, diverges into fast and slow forms that differ in transit time, morphology, and intracellular localizationDuring emperipolesis, neutrophils can reside in vacuoles (emperisomes) or escape into the cell cytoplasm to assume positions near the megakaryocyte’s demarcation membrane system, endoplasmic reticulum, or nucleus.
- Published
- 2021
3. Correlation between Dye-Sensitized Solar Cell Performance and Internal Resistance using Electrochemical Impedance Spectroscopy
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Tung Yl, Cheng Kw, Shingjiang Jessie Lue, Huang Fy, and Lo Pw
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Auxiliary electrode ,Dye-sensitized solar cell ,Light intensity ,Materials science ,Chemical engineering ,Nanotechnology ,Electrolyte ,Microporous material ,Internal resistance ,Sheet resistance ,Dielectric spectroscopy - Abstract
Dye sensitized solar cells (DSSCs) containing 3-methoxypropionitrile (MPN) electrolyte solution are prepared by introducing microporous polycarbonate (PC) film supports of two pore sizes (nominal diameters of 0.2 and 0.05 μm). These PC films are stable up to 400°C. The conductivities of the PC films impregnated with the MPN electrolyte solution are not significantly different from each other. The DSSC efficiencies with and without the PC supports are compared under illumination intensities of 20, 50, and 100 mW cm-2. Under medium to strong light intensity, the control cell (without PC supports) has the highest photo-to-current efficiency, followed by those with the 0.2 and 0.05 μm PC supports. In the low intensity incident light, the cells with the 0.2 μm support slightly outperform the other cells. The control DSSCs and DSSCs containing PC supports are aged via light soaking at 60°C. The as-prepared and aged cells are analyzed using electrochemical impedance spectroscopy to isolate resistance components in the DSSCs. The cell efficiency is highly correlated with the reciprocal of serial resistance, which is the sum of the resistance values resulting from the platinum counter electrode, the ionic diffusion in the electrolyte, and the sheet resistance of the transparent conducting oxide. The resistance due to the ionic diffusion in the electrolyte is the most profound contributor to the serial resistance in the aged cells.
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- 2015
4. Ficolin-A Enhances Inhibition of the C-Terminal 19 kDa Region of Merozoite Surface Protein-1 of Plasmodium berghei Using Test In Vivo
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Chen, F, Liu, Q, Xue, Y, Huang, YH, Huang, FY, Lin, Y, Tan, GH, and Zhou, J
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Plasmodium berghei ,parasitic diseases ,Ficolin-A ,Original Article ,lcsh:RC109-216 ,MSP119 ,lcsh:Infectious and parasitic diseases - Abstract
Background: Malaria remains a serious public health problem with significant morbidity and mortal-ity. This study was conducted to identify whether ficolin-A could play an active role of against mala-ria infection. Methods: The function of ficolin-A was analyzed in mouse model. The open reading frame of fico-lin-A was cloned from the liver of new born C57BL/6 mice by RT-PCR and then inserted into the expression vector of eukaryon to construct pVAX1-ficolin-A plasmid. Meanwhile, the open reading frame of the 19-kDa fragment of merozoite surface protein-1 of Plasmodium berghei (MSP119) was cloned and then the expression vector of eukaryon, pVAX1- MSP119 was constructed. Both recom-binant vectors were used in the mouse model of infection by Plasmodium berghei. Results: pVAX1-ficolin-A alone could not significantly suppress parasite density and prolong sur-vival time of infection mice; however, when injected pVAX1-ficolin-A and pVAX1- MSP119 together, the percent of invasion by Plasmodium was decreased (from 43.78% to 22.23% at 10 day after infec-tion, compared to vector ) and the survival time was prolonged significantly in the infection mouse model (P=0.01). Conclusion: Ficolin-A can enhance the immunoprotection of MSP119, it implies ficolin-A may be used as immunoenhancer in the study of vaccine defending malaria.
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- 2013
5. Theory of strain relaxation for epitaxial layers grown on substrate of a finite dimension
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Huang Fy
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Materials science ,Strain (chemistry) ,Condensed matter physics ,Numerical analysis ,Alloy ,General Physics and Astronomy ,Substrate (electronics) ,engineering.material ,Epitaxy ,Condensed Matter::Materials Science ,Reflection (mathematics) ,engineering ,Relaxation (physics) ,Dislocation - Abstract
We present an equilibrium theory for strain relaxation in epitaxial layers grown on substrates of a finite dimension. The conventional dislocation model is refined to take account of the multiple reflection of image dislocations. The effect of strain transfer and dilution due to finite vertical and lateral dimensions of the substrate is also considered. The critical thickness has been obtained based on an energy balance approach. Detailed numerical analysis with primary experiments for the SiGe alloy system is also provided.
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- 2000
6. Programming with heterogeneous structures: Manipulating XML data using bondi
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Huang, FY, Jay, CB, Skillicorn, DB, Huang, FY, Jay, CB, and Skillicorn, DB
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Manipulating semistructured data, such as XML, does not fit well within conventional programming languages. A typical manipulation requires finding all occurrences of a structure matching a structured search pattern, whose context may be different in different places, and both aspects cause difficulty. If a special-purpose query language is used to manipulate XML, an interface to a more general programming environment is required, and this interface typically creates runtime overhead for type conversion. However, adding XML manipulation to a general-purpose programming language has proven difficult because of problems associated with expressiveness and typing. We show an alternative approach that handles many kinds of patterns within an existing strongly-typed general-purpose programming language called bondi. The key ideas are to express complex search patterns as structures of simple patterns, pass these complex patterns as parameters to generic data-processing functions and traverse heterogeneous data structures by a generalized form of pattern matching. These ideas are made possible by the language's support for pattern calculus, whose typing on structures and patterns enables path and pattern polymorphism. With this approach, adding a new kind of pattern is just a matter of programming, not language design. Copyright © 2006, Australian Computer Society, Inc.
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- 2006
7. Adaptiveness in Well-Typed java bytecode verification
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Erdogmus, H, Stroulia, E, Stewart, D, Huang, FY, Jay, B, Skillicorn, D, Erdogmus, H, Stroulia, E, Stewart, D, Huang, FY, Jay, B, and Skillicorn, D
- Abstract
Research on security techniques for Java bytecode has paid little attention to the security of the implementations of the techniques themselves, assuming that ordinary tools for programming, verification and testing are sufficient for security. However, different categories of security policies and mechanisms usually require different implementations. Each implementation requires extensive effort to test it and/or verify it.We show that programming with well-typed pattern structures in a statically well-typed language makes it possible to implement static byte-code verification in a fully type-safe and highly adaptive way, with security policies being fed in as first-order parameters, reduces the effort required to verify security of an implementation itself and the programming need for new policies. Also bytecode instrumentation can be handled in exactly the same way. The approach aims at reducing the workload of building and understanding distributed systems, especially those of mobile code.
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- 2006
8. Altered Immune-Responses In Mice Lacking Inducible Nitric-Oxide Synthase
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Wei, X, Charles, IG, Smith, AC, Ure, J, Feng, C, Huang, FY, Xu, DX, Muller, WJ, Moncada, S, and Liew, F
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General Science & Technology - Abstract
NITRIC oxide (NO) is important in many biological functions(1-5). It is generated from L-arginine by the enzyme NO synthase (NOS), The cytokine-inducible NOS (iNOS) is activated by several immunological stimuli, leading to the production of large quantit
- Published
- 1995
9. Imaging, autoradiography, and biodistribution of (188)Re-labeled PEGylated nanoliposome in orthotopic glioma bearing rat model.
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Huang FY, Lee TW, Kao CH, Chang CH, Zhang X, Lee WY, Chen WJ, Wang SC, Lo JM, Huang, Feng-Yun J, Lee, Te-Wei, Kao, Chih-Hao K, Chang, Chih-Hsien, Zhang, Xiaoning, Lee, Wan-Yu, Chen, Wan-Jou, Wang, Shu-Chi, and Lo, Jem-Mau
- Abstract
The (188)Re-labeled pegylated nanoliposome (abbreviated as (188)Re-Liposome) was prepared and evaluated for its potential as a theragnostic agent for glioma. (188)Re-BMEDA complex was loaded into the pegylated liposome core with pH 5.5 ammonium sulfate gradient to produce (188)Re-Liposome. Orthotopic Fischer344/F98 glioma tumor-bearing rats were prepared and intravenously injected with (188)Re-Liposome. Biodistribution, pharmacokinetic study, autoradiography (ARG), histopathology, and nano-SPECT/CT imaging were conducted for the animal model. The result showed that (188)Re-Liposome accumulated in the brain tumor of the animal model from 0.28%±0.09% injected dose (ID)/g (n=3) at 1 hour to a maximum of 1.95%±0.35% ID/g (n=3) at 24 hours postinjection. The tumor-to-normal brain uptake ratio (T/N ratio) increased from 3.5 at 1 hour to 32.5 at 24 hours. Both ARG and histopathological images clearly showed corresponding tumor regions with high T/N ratios. Nano-SPECT/CT detected a very clear tumor image from 4 hours till 48 hours. This study reveals the potential of (188)Re-Liposome as a theragnostic agent for brain glioma. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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10. Using information technology to evaluate the detection of co-occurring substance use disorders amongst patients in a state mental health system: implications for co-occurring disorder state initiatives.
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Huang FY, Ziedonis DM, Hu HM, and Kline A
- Abstract
The current study describes a system-wide method of evaluating detection strategies for co-occurring disorders within a state mental health system. Information technology was used to merge administrative datasets from the New Jersey mental health and substance abuse systems and identify individuals treated in both systems. We measured a 53% detection rate of substance use disorders amongst adult patients in the mental health system with particularly low detection rates in acute settings (49.0%) and among female (43.7%), older (36.2%), and psychotic patients (43.6%). The methodology described here could help evaluate critical aspects of ongoing state co-occurring disorder quality improvement initiatives. [ABSTRACT FROM AUTHOR]
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- 2008
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11. Clinical characteristics and survival of trisomy 13 in a medical center in Taiwan, 1985-2004.
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Lin HY, Lin SP, Chen YJ, Hsu CH, Kao HA, Chen MR, Hung HY, Ho CS, Chang JH, Huang FY, Tsai TC, Lin DS, and Chan WT
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- 2007
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12. Using the PHQ-9 for depression screening and treatment monitoring for chinese americans in primary care.
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Chen TM, Huang FY, Chang C, and Chung H
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OBJECTIVE: Because Chinese Americans are known to underutilize mental health services, routine screening for depression in primary care clinics has been advocated as a means of identifying Chinese-American patients with depression and initiating appropriate treatment. This analysis evaluated the utility of the nine-item depression module of the Patient Health Questionnaire (PHQ-9) for depression screening and monitoring treatment outcomes among Chinese Americans at a primary health care setting. METHODS: A total of 3,417 patients who presented for an initial or annual physical examination with their primary care providers were screened for depression between January and October 2003 at the Charles B. Wang Community Health Center, a primary health care center in New York City serving primarily low-income Chinese Americans. The depression screen was a two-tier process: if patients endorsed one or more of three initial questions on an abridged version of the PHQ-9, they were then administered the PHQ-9. RESULTS: A total of 141 individuals (4.1 percent) had clinically significant depressive symptoms (PHQ-9 score of 10 or higher). Women were more likely to have significant levels of depressive symptoms than men (17.3 percent compared with 11.6 percent). A total of 114 of the 141 patients with clinically significant depressive symptoms received treatment plans initiated by their primary care provider. Forty (35.1 percent) responded to treatment (50 percent decrease in PHQ-9 score) by eight weeks of treatment. CONCLUSIONS: The PHQ-9 can be used to screen for depression as well as guide depression treatment planning among Chinese Americans in primary care. Screening for major depression with the PHQ-9 in primary care settings should be considered for appropriate identification and treatment of depression for Chinese-American patients. [ABSTRACT FROM AUTHOR]
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- 2006
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13. Evaluation of 188Re-labeled PEGylated nanoliposome as a radionuclide therapeutic agent in an orthotopic glioma-bearing rat model
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Huang FYJ, Lee TW, Chang CH, Chen LC, Hsu WH, Chang CW, and Lo JM
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Medicine (General) ,R5-920 - Abstract
Feng-Yun J Huang,1 Te-Wei Lee,2 Chih-Hsien Chang,2 Liang-Cheng Chen,2 Wei-Hsin Hsu,2 Chien-Wen Chang,1 Jem-Mau Lo1 1Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan; 2Institute of Nuclear Energy Research, Longtan, Taiwan Purpose: In this study, the 188Re-labeled PEGylated nanoliposome (188Re-liposome) was prepared and evaluated as a therapeutic agent for glioma.Materials and methods: The reporter cell line, F98luc was prepared via Lentivector expression kit system and used to set up the orthotopic glioma-bearing rat model for non-invasive bioluminescent imaging. The maximum tolerated dose applicable in Fischer344 rats was explored via body weight monitoring of the rats after single intravenous injection of 188Re-liposome with varying dosages before the treatment study. The OLINDA/EXM 1.1 software was utilized for estimating the radiation dosimetry. To assess the therapeutic efficacy, tumor-bearing rats were intravenously administered 188Re-liposome or normal saline followed by monitoring of the tumor growth and animal survival time. In addition, the histopathological examinations of tumors were conducted on the 188Re-liposome-treated rats.Results: By using bioluminescent imaging, the well-established reporter cell line (F98luc) showed a high relationship between cell number and its bioluminescent intensity (R2=0.99) in vitro; furthermore, it could also provide clear tumor imaging for monitoring tumor growth in vivo. The maximum tolerated dose of 188Re-liposome in Fischer344 rats was estimated to be 333 MBq. According to the dosimetry results, higher equivalent doses were observed in spleen and kidneys while very less were in normal brain, red marrow, and thyroid. For therapeutic efficacy study, the progression of tumor growth in terms of tumor volume and/or tumor weight was significantly slower for the 188Re-liposome-treated group than the control group (P
- Published
- 2015
14. Chloroplast genome of four Amorphophallus species: genomic features,comparative analysis, and phylogenetic relationships among Amorphophallus species.
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Li LF, Yang M, Qi Y, Gao PH, Yang SW, Zhao YT, Guo JW, Wei HY, Liu JN, Zhao JR, Huang FY, and Yu L
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- Genomics methods, Microsatellite Repeats, Codon Usage, Evolution, Molecular, RNA, Transfer genetics, Genome, Chloroplast, Phylogeny, Amorphophallus genetics, Amorphophallus classification
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Background: The genus Amorphophallus (Araceae) contains approximately 250 species, most of which have high ecological and economic significance. The chloroplast genome data and the comprehensive analysis of the chloroplast genome structure of Amorphophallus is limited. In this study, four chloroplast genomes of Amorphophallus were sequenced and assembled. For the first time, comparative analyses of chloroplast genomes were conducted on the 13 Amorphophallus species in conjunction with nine published sequences., Results: The Amorphophallus chloroplast genomes exhibited typical quadripartite structures with lengths ranging from 164,417 to 177,076 bp. These structures consisted of a large single copy (LSC, 90,705 - 98,561 bp), a small single copy (SSC, 14,172 - 21,575 bp), and a pair of inverted repeats (IRs, 26,225 - 35,204 bp). The genomes contain 108 - 113 unique genes, including 76 - 79 protein-coding genes, 28 - 29 tRNA genes, and 4 rRNA genes. The molecular structure, gene order, content, codon usage, long repeats, and simple sequence repeats (SSRs) within Amorphophallus were generally conserved. However, several variations in intron loss and gene expansion on the IR-SSC boundary regions were found among these 13 genomes. Four mutational hotspot regions, including trnM-atpE, atpB, atpB-rbcL and ycf1 were identified. They could identify and phylogeny future species in the genus Amorphophallus. Positive selection was found for rpl36, ccsA, rpl16, rps4, rps8, rps11, rps12, rps14, clpP, rps3, ycf1, rpl20, rps2, rps18, rps19, atpA, atpF, rpl14, rpoA, rpoC1, rpoC2 and rps15 based on the analyses of Ka/Ks ratios. Phylogenetic inferences based on the complete chloroplast genomes revealed a sister relationship between Amorphophallus and Caladieae. All Amorphophallus species formed a monophyletic evolutionary clade and were divided into three groups, including CA-II, SEA, and CA-I. Amorphophallus albus, A. krausei, A. kachinensis and A. konjac were clustered into the CA-II clade, A. paeoniifolius and A. titanum were clustered into the SEA clade, A. muelleri 'zhuyajin1', Amorphophallus sp, A. coaetaneus, A. tonkinensis and A. yunnanensis were clustered into CA- I clade., Conclusions: The genome structure and gene content of Amorphophallus chloroplast genomes are consistent across various species. In this study, the structural variation and comparative genome of chloroplast genomes of Amorphophallus were comprehensively analyzed for the first time. The results provide important genetic information for species classification, identification, molecular breeding, and evolutionary exploration of the genus Amorphophallus., Competing Interests: Declarations. Ethics approval and consent to participate: The materials involved in the article does not an endangered or protected species; therefore, permission is not required to collect this species. Research on these species, including the collection of plant materials has been carried out in accordance with guidelines provided by Kunming University. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests., (© 2024. The Author(s).)
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- 2024
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15. Encapsulating taurine into liposomes: A promising therapeutic for liver fibrosis.
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Zhang XJ, Jiang XY, Ma YL, Huang FY, and Huang ZW
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- Humans, Animals, Apoptosis drug effects, Hepatic Stellate Cells drug effects, Hepatic Stellate Cells metabolism, Liver drug effects, Liver metabolism, Liver pathology, Drug Delivery Systems methods, Liposomes, Liver Cirrhosis drug therapy, Liver Cirrhosis metabolism, Liver Cirrhosis pathology, Taurine administration & dosage, Taurine chemistry, Autophagy drug effects
- Abstract
We summarize the mechanism by which taurine (Tau) inhibits autophagy and induces iron apoptosis in hepatic stellate cells. Tau interacts with autophagy regulates multifunctional proteins, microtubule-associated protein 1 light chain 3 Beta, and autophagy-related gene 5 to inhibit autophagy, binds to ferritin heavy chain 1 and nuclear receptor coactivator 4 to trigger ferritin autophagy, and interacts with glutathione peroxidase 4 to promote iron apoptosis. There is a solid rationale for developing Tau-based therapies targeting autophagy and ferroptosis regulation. From a pharmaceutical point of view, there are certain requirements for Tau protein delivery systems, such as loading efficiency, stability, and targeting. Nanomaterials should also contain a hydrophilic motif similar to Tau to optimize loading efficiency. Since Tau is a hydrophilic molecule with high water solubility, liposomes, micelles, and amphiphilic polymer nanoparticles may represent a superior choice. The nanostructure of the liposome includes a water region and a lipid membrane to sequester hydrophilic and hydrophobic drugs, respectively, whereas Tau is expected to be loaded into the water region. In addition, a representative method of actively targeting hematopoietic stem cells is introduced. A Tau-based method for the treatment of liver fibrosis is proposed based on the formulation of common liposomes (lecithin plus cholesterol)., Competing Interests: Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article., (©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.)
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- 2024
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16. Feasibility of a Home-Based Developmental Behavioral Intervention for Children With Autism Spectrum Disorder in Underserved Taiwanese Families.
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Cheong PL, Wu YT, Lin CW, Huang FY, Pan YL, Kuo HI, Sun JL, and Huang CY
- Abstract
Purpose: This study aims to investigate the feasibility of the home-based parent- mediated intervention Naturalistic developmental behavioral intervention (HB-NDBI) in underserved Taiwanese families of children with Autism spectrum disorder (ASD) and explore its effects on children's developmental skills and parents' parenting stress., Method: 24 underserved Taiwanese families of children with ASD (mean age = 46.5 months) received 12-week HB-NDBI programs. Social Responsiveness Scale, Second Edition (SRS-2), Mullen Scales of Early Learning (MSEL), Child Behavior Checklist (CBCL/1.5-5), and Parenting Stress Index (PSI) were administered before and after the HB-NDBI programs., Results: Following the HB-NDBI programs, significant improvements in social cognition, social communication subscales, receptive language subscale, internalizing, externalizing, and total behavioral problems scales of children, and release of parenting stress were observed., Conclusion: This study demonstrated the feasibility of home-based parent-mediated intervention for underserved families in Taiwan. These promising results might facilitate the development of such interventions for underserved families., Competing Interests: The authors have no financial relationships relevant to this article to disclose. The authors do not have any potential conflict of interest, real or perceived., (Copyright © 2024 Academy of Pediatric Physical Therapy of the American Physical Therapy Association.)
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- 2024
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17. Causal effect of psoriasis on aortic valve stenosis: a two-sample Mendelian randomization study.
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Jiang KX, Wang Y, Liu YT, Xu Y, Huang FY, and Chen M
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Background: Epidemiological studies have suggested a potential connection between psoriasis and an increased risk of aortic valve stenosis (AS), though the impact of psoriasis on AS progression remains uncertain. The study aims to investigate the causal relationship between psoriasis and AS using Mendelian randomization (MR) analysis, as well as to uncover potential mechanisms underlying this association., Methods: A two-sample MR analysis was conducted using publicly available summary statistics from genome-wide association studies (GWAS) of psoriasis and AS. Cis-eQTL and significant genes were identified for each causal single-nucleotide polymorphisms (SNPs), followed by pathway enrichment and protein-protein interaction (PPI) analysis for functional evaluation. Hub genes were pinpointed by Cytospace. The transcriptional profile of AS population was acquired, and interconnected genes networks were clustered using Molecular Complex Detection (MCODE)., Results: Our results demonstrate a significant causal relationship between psoriasis and AS, with a genetic predisposition to psoriasis associated with a higher AS risk (odds ratio: 1.46). Pathway and PPI analyses unveiled 15 hub genes, including HLA-C, HLA-B, ISG15, IFIT3, and MX2, along with immune-related pathways linking psoriasis and AS. Moreover, the transcriptional profiling of the AS database highlighted the significant involvement of adaptive immune cells in AS development. Notably, among the 15 hub genes, ISG15, MX2, OAS3, OASL, IFI6, and EPSTI1 exhibited higher expression in the AS population., Conclusion: Our study provides compelling evidence supporting a causal relationship between psoriasis and AS. Furthermore, the identified hub genes and immune-related pathways may play an important role in the development of both diseases., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 JGC All rights reserved; www.jgc301.com.)
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- 2024
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18. Hydrogeochemical differences drive distinct microbial community assembly and arsenic biotransformation in unconfined and confined groundwater of the geothermal system.
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Zhang LZ, Xing SP, Huang FY, Xiu W, Lloyd JR, Rensing C, Zhao Y, and Guo H
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- Bacteria metabolism, Water Microbiology, Phosphorus analysis, Nitrogen analysis, Nitrogen metabolism, Environmental Monitoring, Groundwater chemistry, Groundwater microbiology, Arsenic metabolism, Arsenic analysis, Water Pollutants, Chemical analysis, Water Pollutants, Chemical metabolism, Microbiota, Biotransformation
- Abstract
High‑arsenic (As) groundwater in geothermal aquifers poses a serious threat to public health. Assembly processes governing groundwater microbial community related to As biotransformation are still unexplored in geothermal groundwater across different aquifers. To fill this gap, groundwater microorganisms, community assembly processes, and microbially metabolic coupling of carbon (C), nitrogen (N), phosphorus (P), sulfur (S), and arsenic (As) were investigated in unconfined and confined groundwater in the thermal reservoirs of the Guide Basin. The difference in groundwater hydrogeochemicals led to the heterogeneity of the microbial community and microbially mediated C, N, P, S, and As cycling between unconfined and confined groundwater. Higher temperature and As concentrations, low nutrient supply, and reduced conditions in confined groundwater supported stronger interspecific coexistence and environmental selection, thus promoting the proliferation of As-resistant microorganisms (ARMs) and simplifying the community assemblage. Abundant available nutrient supply and oxidizing conditions supported an increased species diversity and metabolic functionality in unconfined groundwater. S oxidizers, C fixation, and C degradation bacteria potentially contributed to the decreased As concentrations in unconfined groundwater. However, ARMs, ammonification, and anaerobic ammonia-oxidizing bacteria potentially caused As mobilization in confined groundwater. Overall, our results give a comprehensive insight into the interaction between As and microorganisms in geothermal groundwater., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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19. Cigarette Smoking Is Associated With Lower Chance of Hepatitis B Surface Antigen Seroclearance and Altered Host Immunity.
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Kwok TY, Hui RW, Mao X, Ling GS, Wong DK, Huang FY, Fung J, Seto WK, Yuen MF, and Mak LY
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- Humans, Male, Female, Middle Aged, Adult, Leukocytes, Mononuclear immunology, T-Lymphocytes, Regulatory immunology, Longitudinal Studies, Hepatitis B virus immunology, Transforming Growth Factor beta metabolism, Granzymes metabolism, Hepatitis B, Chronic immunology, Hepatitis B Surface Antigens immunology, Hepatitis B Surface Antigens blood, Cigarette Smoking adverse effects, Cigarette Smoking immunology, Programmed Cell Death 1 Receptor metabolism
- Abstract
Cigarette smoking is associated with worse clinical outcomes in patients with chronic hepatitis B (CHB) infection, but the effects on hepatitis B surface antigen (HBsAg) seroclearance are unclear. This study aimed to investigate the effect of active smoking on HBsAg seroclearance (SC) and its impact on peripheral blood lymphocytes in patients with CHB infection. Longitudinal follow-up data was retrieved in 7833 antiviral-treated CHB subjects identified from a centralised electronic patient record database (Part 1). Phenotypic analysis of peripheral blood mononuclear cells (PBMCs) from 27 CHB-infected patients (6 active smokers; 13 with SC) was performed by flow cytometry to assess programmed death-1 (PD-1) expression and proportion of regulatory T cells (CD4
+ CD25+ CD127lo ). Effector function of HBV-specific T cells was examined by comparing granzyme B (GZMB) and transforming growth factor beta (TGFβ) production in undepleted PBMCs and Treg-depleted PBMCs after 7 days in vitro stimulation with HBV envelope protein overlapping peptides (Part 2). Over a median follow-up of 5 years, smoking was associated with lower probability of SC (aHR 0.70, 95% CI 0.57-0.87). PD-1 expression was increased in CD4+ T cells, CD8+ T cells and CD20+ B cells among smokers compared to non-smokers and positively correlated with pack years (all p < 0.05). Treg depletion led to partial functional recovery of HBV-specific T cells, with significantly bigger magnitude in smokers (p = 0.0451, mean difference = 4.68%) than non-smokers (p = 0.012, mean difference = 4.2%). Cigarette smoking is associated with lower chance of HBsAg seroclearance, higher PD-1 expression on lymphocytes, and impairment of effector functions of HBV-specific T cells in CHB., (© 2024 The Author(s). Journal of Viral Hepatitis published by John Wiley & Sons Ltd.)- Published
- 2024
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20. Geogenic high arsenic elevates the groundwater antibiotic resistomes: A blind spot of resistance in Anthropocene.
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Xu R, Zhang L, Huang FY, Zhu YG, Zhao Y, and Guo H
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- Anti-Bacterial Agents pharmacology, Drug Resistance, Microbial genetics, China, Water Pollutants, Chemical, Bacteria drug effects, Bacteria genetics, Groundwater microbiology, Groundwater chemistry, Arsenic
- Abstract
Metals/metalloids, being ubiquitous in the environment, can function as a co-selective pressure on antibiotic resistance genes (ARGs) threatening human health. However, the effect of geogenic arsenic (As) on groundwater antibiotic resistomes and their health risks remain largely unknown. Here, we systematically analyzed bacterial communities, pathogenic bacteria, antibiotic resistomes, and in-situ multidrug-resistant isolates with the assessment of the health risk of ARGs and the pathogenicity of their hosts in high As groundwater from the Hetao basin, Northwestern China. We found that long-term geogenic As exposure shifted the assembly of resistomes and resulted in a high abundance and diversity of ARGs in groundwater. Significantly positive associations among As, As cycling genes, ARGs, and mobile genetic elements (MGEs) revealed by network and pathway analyses, together with genetic evidence of As-tolerant multidrug-resistant isolates by whole genomic sequencing, robustly indicate the geogenic As-induced co-selection for antibiotic resistance in groundwater. Variance partitioning analysis further confirmed the determinative role of geogenic As in groundwater resistomes, with As species and As cycling genes as the core abiotic and biotic drivers, respectively. More seriously, geogenic As accelerated the prevalence of high-risk ARGs and multidrug-resistant bacteria. Our findings highlight the significance of geogenic As-induced co-selection for antibiotic resistance in groundwater and the hidden role of geogenic metals/metalloids in increasing antibiotic resistance. This study provides a basis for groundwater management of both high As and ARGs for human health., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
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- 2024
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21. The Association between Cardiac Arrest and Mortality in Patients with Acute Myocardial Infarction Complicated by Cardiogenic Shock.
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Xiao QF, Wei X, Wang S, Xu Y, Yang Y, Huang FY, and Chen M
- Abstract
Background: The impact of cardiac arrest (CA) at admission on the prognosis of patients with acute myocardial infarction (AMI) complicated by cardiogenic shock (CS) remains a subject of debate., Methods: We conducted a retrospective study at West China Hospital from 2018 to 2021, enrolling 247 patients with AMI complicated by CS (AMI-CS). Patients were categorized into CA and non-CA groups based on their admission status. Univariate and multivariate Cox regression analyses were performed, with 30-day and 1-year mortality as the primary endpoints. Kaplan-Meier plots were constructed, and concordance (C)-indices of the Global Registry of Acute Coronary Event (GRACE) score, Intra-aortic Balloon Pump in Cardiogenic Shock (IABP-SHOCK) II score, and IABP-SHOCK II score with CA were calculated., Results: Among the enrolled patients, 39 experienced CA and received cardiopulmonary resuscitation at admission. The 30-day and 1-year mortality rates were 40.9% and 47.0%, respectively. Neither univariate nor multivariate Cox regression analyses identified CA as a significant risk factor for 30-day and 1-year mortality. In C-statistics, the GRACE score exhibited a moderate effect (C-indices were 0.69 and 0.67, respectively), while the IABP-SHOCK II score had a better predictive performance (C-indices were 0.79 and 0.76, respectively) for the 30-day and 1-year mortality. Furthermore, CA did not enhance the predictive value of the IABP-SHOCK II score for 30-day ( p = 0.864) and 1-year mortality ( p = 0.888)., Conclusions: Cardiac arrest at admission did not influence the survival of patients with AMI-CS. Active resuscitation should be prioritized for patients with AMI-CS, regardless of the presence of cardiac arrest., Competing Interests: The authors declare no conflict of interest., (Copyright: © 2024 The Author(s). Published by IMR Press.)
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- 2024
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22. Reduction in antimicrobial resistance in a watershed after closure of livestock farms.
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Zhou XY, Hu A, Zhou SY, Huang FY, Kristine Staal Jensen M, Zhao Y, Yan XP, Wan K, Chen QL, Sun Q, Yu CP, Gillings MR, Zhu YG, and Su JQ
- Subjects
- Animals, Swine, Drug Resistance, Microbial genetics, Drug Resistance, Bacterial genetics, Feces microbiology, Animal Husbandry methods, Water Quality, Environmental Monitoring, Livestock, Farms, Anti-Bacterial Agents pharmacology
- Abstract
Natural environments play a crucial role in transmission of antimicrobial resistance (AMR). Development of methods to manage antibiotic resistance genes (ARGs) in natural environments are usually limited to the laboratory or field scale, partially due to the complex dynamics of transmission between different environmental compartments. Here, we conducted a nine-year longitudinal profiling of ARGs at a watershed scale, and provide evidence that restrictions on livestock farms near water bodies significantly reduced riverine ARG abundance. Substantial reductions were revealed in the relative abundance of genes conferring resistance to aminoglycosides (42%), MLSB (36%), multidrug (55%), tetracyclines (53%), and other gene categories (59%). Additionally, improvements in water quality were observed, with distinct changes in concentrations of dissolved reactive phosphorus, ammonium, nitrite, pH, and dissolved oxygen. Antibiotic residues and other pharmaceuticals and personal care products (PPCPs) maintain at a similarly low level. Microbial source tracking demonstrates a significant decrease in swine fecal indicators, while human fecal pollution remains unchanged. These results suggest that the reduction in ARGs was due to a substantial reduction in input of antibiotic resistant bacteria and genes from animal excreta. Our findings highlight the watershed as a living laboratory for understanding the dynamics of AMR, and for evaluating the efficacy of environmental regulations, with implications for reducing environmental risks associated with AMR on a global scale., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
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- 2024
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23. Toxicarioside H-mediated modulation of the immune microenvironment attenuates ovalbumin-induced allergic airway inflammation by inhibiting NETosis.
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Zhang J, Huang FY, Dai SZ, Wang L, Zhou X, Zheng ZY, Li Q, Tan GH, and Wang CC
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- Animals, Mice, Bronchoalveolar Lavage Fluid immunology, Bronchoalveolar Lavage Fluid cytology, Female, Disease Models, Animal, Asthma immunology, Asthma drug therapy, Neutrophils immunology, Neutrophils drug effects, T-Lymphocytes, Regulatory immunology, T-Lymphocytes, Regulatory drug effects, Anti-Inflammatory Agents pharmacology, Anti-Inflammatory Agents therapeutic use, Humans, Mucus metabolism, Mucus immunology, Allergens immunology, Mice, Inbred BALB C, Ovalbumin immunology, Cytokines metabolism, Lung immunology, Lung pathology, Lung drug effects
- Abstract
Purpose: Our team identified a new cardiac glycoside, Toxicarioside H (ToxH), in a tropical plant. Previous research has indicated the potential of cardenolides in mitigating inflammation, particularly in the context of NETosis. Therefore, this study sought to examine the potential of ToxH in attenuating allergic airway inflammation by influencing the immune microenvironment., Methods: An OVA-induced airway inflammation model was established in BALB/c mice. After the experiment was completed, serum, bronchoalveolar lavage fluid (BALF), and lung tissue samples were collected and further examined using H&E and PAS staining, flow cytometry, immunofluorescence observation, and Western blot analysis., Results: Treatment with ToxH was found to be effective in reducing airway inflammation and mucus production. This was accompanied by an increase in Th1 cytokines (IFN-γ, IL-2, and TNF-β), and the Th17 cytokine IL-17, while levels of Th2 cytokines (IL-4, IL-5, and IL-13) and Treg cytokines (IL-10 and TGF-β1) were decreased in both the bronchoalveolar lavage fluid (BALF) and the CD45
+ immune cells in the lungs. Additionally, ToxH inhibited the infiltration of inflammatory cells and decreased the number of pulmonary CD44+ memory T cells, while augmenting the numbers of Th17 and Treg cells. Furthermore, the neutrophil elastase inhibitor GW311616A was observed to suppress airway inflammation and mucus production, as well as alter the secretion of immune Th1, Th2, Th17, and Treg cytokines in the lung CD45+ immune cells. Moreover, our study also demonstrated that treatment with ToxH efficiently inhibited ROS generation, thereby rectifying the dysregulation of immune cells in the immune microenvironment in OVA-induced allergic asthma., Conclusions: Our findings indicate that ToxH could serve as a promising therapeutic intervention for allergic airway inflammation and various other inflammatory disorders. Modulating the balance of Th1/Th2 and Treg/Th17 cells within the pulmonary immune microenvironment may offer an effective strategy for controlling allergic airway inflammation., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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24. Progesterone modulates the immune microenvironment to suppress ovalbumin-induced airway inflammation by inhibiting NETosis.
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Wang L, Huang FY, Dai SZ, Fu Y, Zhou X, Wang CC, Tan GH, and Li Q
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- Animals, Female, Mice, Bronchoalveolar Lavage Fluid, Cellular Microenvironment drug effects, Cytokines metabolism, Disease Models, Animal, Extracellular Traps drug effects, Extracellular Traps metabolism, Extracellular Traps immunology, Inflammation drug therapy, Inflammation immunology, Inflammation metabolism, Lung immunology, Lung pathology, Lung drug effects, Lung metabolism, Mice, Inbred BALB C, Th17 Cells immunology, Th17 Cells drug effects, Th17 Cells metabolism, Asthma immunology, Asthma drug therapy, Asthma metabolism, Ovalbumin immunology, Progesterone pharmacology
- Abstract
Studies have demonstrated that prior to puberty, girls have a lower incidence and severity of asthma symptoms compared to boys. This study aimed to explore the role of progesterone (P4), a sex hormone, in reducing inflammation and altering the immune microenvironment in a mouse model of allergic asthma induced by OVA. Female BALB/c mice with or without ovariectomy to remove the influence of sex hormones were used for the investigations. Serum, bronchoalveolar lavage fluid (BALF), and lung tissue samples were collected for analysis. The results indicated that P4 treatment was effective in decreasing inflammation and mucus secretion in the lungs of OVA-induced allergic asthma mice. P4 treatment also reduced the influx of inflammatory cells into the BALF and increased the levels of Th1 and Th17 cytokines while decreasing the levels of Th2 and Treg cytokines in both BALF and lung microenvironment CD45
+ T cells. Furthermore, P4 inhibited the infiltration of inflammatory cells into the lungs, suppressed NETosis, and reduced the number of pulmonary CD4+ T cells while increasing the number of regulatory T cells. The neutrophil elastase inhibitor GW311616A also suppressed airway inflammation and mucus production and modified the secretion of immune Th1, Th2, Th17, and Treg cytokines in lung CD45+ immune cells. These changes led to an alteration of the immunological milieu with increased Th1 and Th17 cells, accompanied by decreased Th2, Treg, and CD44+ T cells, similar to the effects of P4 treatment. Treatment with P4 inhibited NETosis by suppressing the p38 pathway activation, leading to reduced reactive oxygen species production. Moreover, P4 treatment hindered the release of double-stranded DNA during NETosis, thereby influencing the immune microenvironment in the lungs. These findings suggest that P4 treatment may be beneficial in reducing inflammation associated with allergic asthma by modulating the immune microenvironment. In conclusion, this research indicates the potential of P4 as a therapeutic agent for ameliorating inflammation in OVA-induced allergic asthma mice., (© 2024. The Author(s).)- Published
- 2024
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25. [Profiles of Antibiotic Resistance Genes in the Coastal Aquatic Environment of Xiamen City].
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Xu WF, Liu LH, Huang FY, He Q, and Zhang X
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- China, Environmental Monitoring methods, Genes, Bacterial, Cities, Bacteria genetics, Bacteria drug effects, Bacteria classification, Anti-Bacterial Agents pharmacology, Oceans and Seas, Water Microbiology, Drug Resistance, Bacterial genetics, Seawater microbiology, Drug Resistance, Microbial genetics
- Abstract
The coastal areas and the adjacent islands are the hotspots of human economic and social activities, including urbanization, industrialization, and agricultural practices, which have profound impacts on the ecological environment of the coastal environment. Antibiotic resistance genes (ARGs), as emerging contaminants, have become hot topics in water ecological security and public concern. However, the profiles of antibiotic resistome in the costal water remain largely unknown, impeding resistome risk assessment associated with coastal environments. In this study, the high-throughput quantitative PCR technique was used to investigate the abundance and distribution of ARGs in the coastal environment of Xiamen City. Combined with the 16S rDNA gene amplicon sequencing method, the structure and composition of the microbial community in a water environment were investigated, and the influencing factors and associated mechanism of ARGs in seawater were deeply explained. The results of this study showed that a total of 187 ARGs were detected in the coastal water environment, and the abundance level was up to 1.29×10
10 copies·L-1 . Multidrug resistance, aminoglycosides, and β lactamase resistance genes were the three main classes of antibiotic resistance genes in the water environment of the Xiamen coastal zone. On the whole, the profile of ARGs was of high abundance, great diversity, and common co-existence, and the coastal water environment was an important hot area and reservoir for antibiotic resistance genes. Twenty-two microbes, including Nautella , Candidatus , Tenacibaculum , Rubripirellula , and Woeseia , were potential carriers of the corresponding 16 antibiotic resistance genes. The mobile genetic elements (MGEs) and microbial community structure accounted for 93.9% of the variation in environmental resistance genes in water. Therefore, microbial community and its mobile genetic elements were the most important driving forces for the occurrence and evolution of ARGs in coastal waters. Based on the results, it is implied that the environmental antibiotic resistance genes in the waters near Xiamen Island have potential risks to water ecological security and human health and highlight the necessity for comprehensive surveillance of ARGs associated with microbial contamination in the coastal aquatic environment.- Published
- 2024
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26. Preliminary Report of Nationwide COVID-19 Vaccine Compensation in Taiwan.
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Lu YA, Huang FY, Chi H, Lin CY, and Chiu NC
- Abstract
The potential adverse effects of coronavirus disease 2019 (COVID-19) vaccinations raise public concerns. Data from Taiwan's Vaccine Injury Compensation Program (VICP) can provide valuable insights. This study analyzed the preliminary application data for COVID-19 vaccine compensation in Taiwan's VICP, focusing on applicants receiving vaccines between March 2021 and June 2022. Among the 2941 adverse events, 113 cases (3.8%) were deemed causally associated with vaccination, 313 (10.6%) were indeterminate, and 2515 (85.5%) had no causal association. Nearly half (47.6%) of the applicants were over 60 years old, and 76.6% had a history of pre-existing chronic diseases. Among the 426 vaccine-associated or indeterminate cases, the most common causes were hematological diseases and thrombosis. There were 920 mortality cases reported, and 97.4% were unassociated with vaccination. Only five deaths were judged to be associated with the COVID-19 vaccination, all involving the adenovirus vector vaccine and thrombosis with thrombocytopenia syndrome. In conclusion, most compensation applications were not causally linked to vaccination. Compared to other countries, the number of applications in Taiwan's VICP is relatively high. These findings may indicate a need to adjust the application requirements for compensation in Taiwan's program.
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- 2024
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27. Rosuvastatin attenuates airway inflammation and remodeling in a chronic allergic asthma model through modulation of the AMPKα signaling pathway.
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Zhang L, Huang FY, Dai SZ, Wang L, Zhou X, Zheng ZY, Li Q, Tan GH, and Wang CC
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- Animals, Mice, Ovalbumin, Female, Mice, Inbred BALB C, Bronchoalveolar Lavage Fluid, Chronic Disease, Inflammation drug therapy, Inflammation pathology, Inflammation metabolism, Lung pathology, Lung drug effects, Lung metabolism, Immunoglobulin E blood, Asthma drug therapy, Asthma metabolism, Asthma pathology, Rosuvastatin Calcium pharmacology, Rosuvastatin Calcium therapeutic use, AMP-Activated Protein Kinases metabolism, Signal Transduction drug effects, Airway Remodeling drug effects, Disease Models, Animal
- Abstract
The efficacy of rosuvastatin in reducing allergic inflammation has been established. However, its potential to reduce airway remodeling has yet to be explored. This study aimed to evaluate the efficacy of rosuvastatin in reducing airway inflammation and remodeling in a mouse model of chronic allergic asthma induced by sensitization and challenge with OVA. Histology of the lung tissue and the number of inflammatory cells in bronchoalveolar lavage fluid (BALF) showed a marked decrease in airway inflammation and remodeling in mice treated with rosuvastatin, as evidenced by a decrease in goblet cell hyperplasia, collagen deposition, and smooth muscle hypertrophy. Furthermore, levels of inflammatory cytokines, angiogenesis-related factors, and OVA-specific IgE in BALF, plasma, and serum were all reduced upon treatment with rosuvastatin. Western blotting was employed to detect AMPK expression, while immunohistochemistry staining was used to observe the expression of remodeling signaling proteins such as α-SMA, TGF-β, MMP-9, and p-AMPKα in the lungs. It was found that the activity of 5'-adenosine monophosphate-activated protein kinase alpha (AMPKα) was significantly lower in the lungs of OVA-induced asthmatic mice compared to Control mice. However, the administration of rosuvastatin increased the ratio of phosphorylated AMPK to total AMPKα, thus inhibiting the formation of new blood vessels, as indicated by CD31-positive staining mainly in the sub-epithelial region. These results indicate that rosuvastatin can effectively reduce airway inflammation and remodeling in mice with chronic allergic asthma caused by OVA, likely due to the reactivation of AMPKα and a decrease in angiogenesis., Competing Interests: The authors declare that there is no conflict of interest to declare., (Copyright: © 2024 Zhang et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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28. Research on the mechanism of sea buckthorn leaf Fu tea in the treatment of hyperlipidemia.
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Chen SK, Wei WX, Huang FY, Wang J, Li XY, Yang YT, Xing WT, Gao F, Li M, Miao F, Chen LL, and Wei PF
- Abstract
Background: Hyperlipidemia (HLP) presents a significant challenge to global public health. Mounting evidence suggests that statins, the recommended first-line lipid-lowering agents, have significant adverse effects. Consequently, the quest for natural and efficacious alternative therapies is steadily emerging as a research priority for HLP prevention and treatment. Consumption of tea, which is rich in diverse biologically active compounds with the capacity to regulate lipid metabolism and combat obesity, has emerged as a promising alternative therapy. Sea buckthorn leaves are rich in a multitude of biologically active substances, have a hypolipidemic effect, and can be used as a raw material for tea because of their unique flavor. There is a suggestion that combining Aspergillus cristatus with tea could modify or boost the lipid-lowering active compounds present in tea, thereby increasing its efficacy in regulating lipid metabolism., Results: Sea Buckthorn Leaf Fu Tea (SBLFT) was obtained by fermentation when sea buckthorn leaves contained 42 % moisture, inoculated with Aspergillus cristatus 0.2 mL/g, and incubated for 8 d at constant temperature. Animal experiments demonstrated that SBLFT significantly inhibited body weight gain in HLP rats and reduced lipid content and serum oxidative stress. In addition, liver tissue sections and functional indices showed that SBLFT can improve liver morphology and function abnormalities. Reverse transcription-polymerase chain reaction results indicated that the expression of Liver kinase B1 ( LKB1 ), adenosine 5'-monophosphate (AMP)-activated protein kinase ( AMPK ), acetyl CoA carboxylase 1 (ACC1), and sterol-regulatory element binding protein-1 ( SREBP1c ) gene related to lipid metabolism was altered., Conclusion: SBLFT improved HLP, specifically via promoting the expression of LKB1 in the liver of HLP rats, activating AMPK , and inhibiting ACC1 and SREBP1c expression, resulting in the inhibition of fatty acid and triglyceride synthesis-related enzymes at the transcriptional level., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Authors.)
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- 2024
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29. Penicilazaphilone C alleviates allergic airway inflammation and improves the immune microenvironment by hindering the NLRP3 inflammasome.
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Fu Y, Huang FY, Dai SZ, Wang L, Zhou X, Zheng ZY, Wang CC, Tan GH, and Li Q
- Subjects
- Animals, Female, Mice, Lung drug effects, Lung pathology, Lung metabolism, Lung immunology, Oxidative Stress drug effects, Ovalbumin, Cytokines metabolism, Inflammation drug therapy, Inflammation pathology, Disease Models, Animal, Dexamethasone pharmacology, Anti-Inflammatory Agents pharmacology, NLR Family, Pyrin Domain-Containing 3 Protein metabolism, Mice, Inbred BALB C, Inflammasomes metabolism, Inflammasomes drug effects, Asthma drug therapy, Asthma immunology, Asthma chemically induced, Bronchoalveolar Lavage Fluid
- Abstract
Aims: Penicilazaphilone C (PAC) is hypothesized to potentially serve as a therapeutic treatment for allergic airway inflammation by inhibiting the NLRP3 inflammasome and reducing oxidative stress., Methods: An allergic asthma model was induced in female BALB/c mice of the OVA, OVA+PAC, OVA+PAC+LPS, and OVA+Dex groups by sensitizing and subsequently challenging them with OVA. The OVA+PAC and Normal+PAC groups were treated with PAC, while the OVA+PAC+LPS group also received LPS. The OVA+Dex group was given dexamethasone (Dex). Samples of serum, bronchoalveolar lavage fluid (BALF), and lung tissue were collected for histological and cytological analysis., Results: Allergic mice treated with PAC or Dex showed inhibited inflammation and mucus production in the lungs. There was a decrease in the number of inflammatory cells in the BALF, lower levels of inflammatory cytokines in the serum and BALF, and a reduction in the protein expression of NLRP3, ASC, cleaved caspase-1, IL-1β, activated gasdermin D, MPO, Ly6G, and ICAM-1. Additionally, oxidative stress was reduced, as shown by a decrease in MDA and DCF, but an increase in SOD and GSH. Treatment with PAC also resulted in a decrease in pulmonary memory CD4+ T cells and an increase in regulatory T cells. However, the positive effects seen in the PAC-treated mice were reversed when the NLRP3 inflammasome was activated by LPS, almost returning to the levels of the Sham-treated mice., Significance: PAC acts in a similar way to anti-allergic inflammation as Dex, suggesting it may be a viable therapeutic option for managing allergic asthma inflammation., Competing Interests: Declaration of Competing Interest The authors declare no potential conflicts of interest., (Copyright © 2024 The Authors. Published by Elsevier Masson SAS.. All rights reserved.)
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- 2024
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30. Vertical migration behavior simulation and prediction of Pb and Cd in co-contaminated soil around Pb-Zn smelting slag site.
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Luo Y, Wang Z, Zhang YD, Zhang JQ, Zeng QP, Zhang ZL, Tian D, Li C, Peng CL, Ye K, Chen YM, Huang FY, Wang YP, Ma XY, and Chen L
- Abstract
Heavy metal migration in soil poses a serious threat to the soil and groundwater. Understanding the migration pattern of heavy metals (HMs) under different factors could provide a more reasonable position for pollution evaluation and targetoriented treatment of soil heavy metal. In this study, the migration behavior of Pb and Cd in co-contaminated soil under different pH and ionic strength (NaCl concentration) was simulated using convective dispersion equation (CDE). We predicted the migration trends of Pb and Cd in soils after 5, 10, and 20 years via PHREEQC. The results showed that the migration time of Cd in the soil column experiment was about 60 days faster than that of Pb, and the migration trend was much steeper. The CDE was proved to describe the migration behavior of Pb and Cd (R
2 > 0.75) in soil. The predicted results showed that Cd migrated to 15-20 cm of soil within 7 years and Pb stayed mainly in the top 0-6 cm of soil within 5 years as the duration of irrigation increased. Overall, our study is expected to provide new insight into the migration of heavy metal in soil ecosystems and guidance for reducing risk of heavy metal in the environment., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier B.V.)- Published
- 2024
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31. Virological response to nucleos(t)ide analogues treatment in chronic hepatitis B patients is associated with Bacteroides-dominant gut microbiome.
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Zhang S, Chau HT, Tun HM, Huang FY, Wong DK, Mak LY, Yuen MF, and Seto WK
- Subjects
- Humans, Male, Female, Middle Aged, Adult, Bacteroides, Antiviral Agents therapeutic use, Metabolome, Treatment Outcome, Liver Cirrhosis drug therapy, Liver Cirrhosis etiology, Liver Cirrhosis microbiology, Liver Cirrhosis virology, Viral Load, Bile Acids and Salts metabolism, Bile Acids and Salts blood, Metagenomics methods, Nucleosides therapeutic use, Nucleosides analogs & derivatives, Gastrointestinal Microbiome drug effects, Hepatitis B, Chronic drug therapy, Hepatitis B, Chronic virology, Hepatitis B, Chronic microbiology, Hepatitis B virus genetics
- Abstract
Background: Gut dysbiosis is present in chronic hepatitis B virus (HBV) infection. In this study, we integrated microbiome and metabolome analysis to investigate the role of gut microbiome in virological response to nucleos(t)ide analogues (NAs) treatment., Methods: Chronic HBV patients were prospectively recruited for steatosis and fibrosis assessments via liver elastography, with full-length 16S sequencing performed to identify the compositional gut microbiota differences. Fasting plasma bile acids were quantified by liquid chromatography-tandem mass spectrometry., Findings: All patients (n = 110) were characterized into three distinct microbial clusters by their dominant genus: c-Bacteroides, c-Blautia, and c-Prevotella. Patients with c-Bacteroides had a higher plasma ursodeoxycholic acids (UDCA) level and an increase in 7-alpha-hydroxysteroid dehydrogenase (secondary bile acid biotransformation) than other clusters. In NAs-treated patients (n = 84), c-Bacteroides was associated with higher odds of plasma HBV-DNA undetectability when compared with non-c-Bacteroides clusters (OR 3.49, 95% CI 1.43-8.96, p = 0.01). c-Blautia was positively associated with advanced fibrosis (OR 2.74, 95% CI 1.09-7.31, p = 0.04). No such associations were found in treatment-naïve patients. Increased Escherichia coli relative abundance (0.21% vs. 0.03%, p = 0.035) was found in on-treatment patients (median treatment duration 98.1 months) with advanced fibrosis despite HBV DNA undetectability. An enrichment in l-tryptophan biosynthesis was observed in patients with advanced fibrosis, which exhibited a positive correlation with Escherichia coli., Interpretation: Collectively, unique bacterial signatures, including c-Bacteroides and c-Blautia, were associated with virological undetectability and fibrosis evolution during NAs therapy in chronic HBV, setting up intriguing possibilities in optimizing HBV treatment., Funding: This study was supported by the Guangdong Natural Science Fund (2019A1515012003)., Competing Interests: Declaration of interests MF Yuen is an advisory board member and/or received research funding from AbbVie, Arbutus Biopharma, Assembly Biosciences, Bristol Myer Squibb, Dicerna Pharmaceuticals, GlaxoSmithKline, Gilead Sciences, Janssen, Merck Sharp and Dohme, Clear B Therapeutics, Springbank Pharmaceuticals; and received research funding from Arrowhead Pharmaceuticals, Fujirebio Incorporation and Sysmex Corporation. WK Seto received speaker's fees from AstraZeneca, is an advisory board member and received speaker's fees from Abbott, received research funding from Pfizer, Alexion Pharmaceuticals, Ribo Life Sciences, and Boehringer Ingelheim, and is an advisory board member, received speaker's fees and researching funding from Gilead Sciences. The remaining authors have no conflict of interest., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
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- 2024
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32. Autocrine phosphatase PDP2 inhibits ferroptosis by dephosphorylating ACSL4 in the Luminal A Breast Cancer.
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Zhu JJ, Huang FY, Chen H, Zhang YL, Chen MH, Wu RH, Dai SZ, He GS, Tan GH, and Zheng WP
- Subjects
- Female, Humans, Coenzyme A Ligases genetics, Lipid Peroxidation, Phosphoric Monoester Hydrolases, Phosphorylation, Pyruvate Dehydrogenase (Lipoamide)-Phosphatase metabolism, Breast Neoplasms genetics, Ferroptosis genetics
- Abstract
Phosphatases can dephosphorylate phosphorylated kinases, leading to their inactivation, and ferroptosis is a type of cell death. Therefore, our aim is to identify phosphatases associated with ferroptosis by analyzing the differentially expressed genes (DEGs) of the Luminal A Breast Cancer (LumABC) cohort from the Cancer Genome Atlas (TCGA). An analysis of 260 phosphatase genes from the GeneCard database revealed that out of the 28 DEGs with high expression, only the expression of pyruvate dehydrogenase phosphatase 2 (PDP2) had a significant correlation with patient survival. In addition, an analysis of DEGs using gene ontology, Kyoto Encyclopedia of Genes and Genomes and gene set enrichment analysis revealed a significant variation in the expression of ferroptosis-related genes. To further investigate this, we analyzed 34 ferroptosis-related genes from the TCGA-LumABC cohort. The expression of long-chain acyl-CoA synthetase 4 (ACSL4) was found to have the highest correlation with the expression of PDP2, and its expression was also inversely proportional to the survival rate of patients. Western blot experiments using the MCF-7 cell line showed that the phosphorylation level of ACSL4 was significantly lower in cells transfected with the HA-PDP2 plasmid, and ferroptosis was correspondingly reduced (p < 0.001), as indicated by data from flow cytometry detection of membrane-permeability cell death stained with 7-aminoactinomycin, lipid peroxidation, and Fe2+. Immunoprecipitation experiments further revealed that the phosphorylation level of ACSL4 was only significantly reduced in cells where PDP2 and ACSL4 co-precipitated. These findings suggest that PDP2 may act as a phosphatase to dephosphorylate and inhibit the activity of ACSL4, which had been phosphorylated and activated in LumABC cells. Further experiments are needed to confirm the molecular mechanism of PDP2 inhibiting ferroptosis., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Zhu et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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33. Mapping the profiles and underlying driving mechanisms of the antibiotic resistome and microbiome within a subtropical complex river watershed.
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Zhou XY, Zhou SY, Huang FY, Zhu L, and Su JQ
- Subjects
- Humans, Anti-Bacterial Agents pharmacology, Drug Resistance, Microbial genetics, Rivers, Genes, Bacterial, Microbiota
- Abstract
Antibiotic resistance is an escalating global concern, leading to millions of annual deaths worldwide. Human activities can impact antibiotic resistance gene (ARG) prevalence in aquatic ecosystems, but the intricate interplay between anthropogenic disturbances and river system resilience, and their respective contributions to the dynamics of different river segments, remains poorly understood. In this study, we investigate the antibiotic resistome and microbiome in water and sediment samples from two distinct sub-watersheds within a specific watershed. Results show a decrease in the number of core ARGs downstream in water, while sediments near densely populated areas exhibit an increase. PCoA ordination reveals clear geographic clustering of resistome and microbiome among samples from strong anthropogenic disturbed areas, reservoir areas, and estuary area. Co-occurrence networks highlight a higher connectivity of mobile genetic elements (MGEs) in disturbed areas compared to reservoir areas, presenting a threat to densely populated areas. Water quality parameters and antibiotics concentration were the key factors shaping the ARG profiles in sediment samples from urban regions. Overall, our study reveals distinct patterns of ARGs in sediment and water samples, emphasizing the importance of considering both anthropogenic and natural factors in comprehending and managing ARG distribution in river systems., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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34. [Mechanism of Yuxuebi Tablets in treating synovial inflammation in rheumatoid arthritis based on transcriptomics].
- Author
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Zhang XZ, Tao XY, Huang FY, Zhu PP, Yuan B, Chen PP, Kong XY, Lin N, and Su XH
- Subjects
- Rats, Animals, Phosphatidylinositol 3-Kinases metabolism, Tumor Necrosis Factor-alpha genetics, Tumor Necrosis Factor-alpha metabolism, Synovial Membrane, Inflammation drug therapy, Inflammation genetics, Inflammation metabolism, Gene Expression Profiling methods, Proto-Oncogene Proteins c-akt metabolism, Arthritis, Rheumatoid drug therapy, Arthritis, Rheumatoid genetics
- Abstract
This study investigated the mechanism of Yuxuebi Tablets(YXB) in the treatment of synovial inflammation in rheumatoid arthritis(RA) based on transcriptomic analysis. Transcriptome sequencing technology was employed to analyze the gene expression profiles of joint tissues from normal rats, collagen-induced arthritis(CIA) rats(an RA model), and YXB-treated rats. Common diffe-rentially expressed genes(DEGs) were subjected to Gene Ontology(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) enrichment analyses. RA synovial inflammation-related target genes were retrieved from the OMIM and GeneCards databases. Venny 2.1 software was used to identify the intersection of YXB target genes and RA synovial inflammation-related target genes, and GO and KEGG enrichment analyses were performed on the intersecting target genes. Immunohistochemistry was used to assess the protein expression levels of the inflammatory factors interleukin-1β(IL-1β) and tumor necrosis factor-α(TNF-α) in rat joint tissues. Western blot analysis was employed to measure the expression levels of key proteins in the phosphatidylinositol 3-kinase(PI3K)/protein kinase B(Akt) signaling pathway. A total of 2 058 DEGs were identified by intersecting the genes from the normal group vs model group and the model group vs YXB treatment group. A search in OMIM and GeneCards databases yielded 1 102 RA synovial inflammation-related target genes. After intersecting with the DEGs in the YXB treatment group, 204 intersecting target genes were identified, primarily involving biological processes such as immune response, signal transduction, and inflammatory response; cellular components including plasma membrane, extracellular space, and extracellular region; molecular functions like protein binding, identical protein binding, and receptor binding. These target genes were mainly enriched in signaling pathways such as PI3K/Akt, cytokine-cytokine receptor interaction, and Janus kinase/signal transducer and activator of transcription(JAK/STAT). Western blot results showed that YXB at low, medium, and high doses could significantly inhibit the expression levels of key proteins in the PI3K/Akt signaling pathway in rat joint tissues in a dose-dependent manner. Immunohistochemistry further confirmed these findings, showing that YXB not only suppressed the protein expression levels of the inflammatory factors IL-1β and TNF-α in the joint synovial tissues of CIA rats, but also inhibited p-Akt protein expression. In conclusion, this study used transcriptomic analysis to uncover the key mechanisms of YXB in inhibiting synovial inflammation and alleviating the progression of RA, with a focus on its role in suppressing the PI3K/Akt signaling pathway.
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- 2024
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35. The size-dependence and reversibility of polystyrene nanoplastics-induced lipid accumulation in mice: Possible roles of lysosomes.
- Author
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Lu YY, Lu L, Ren HY, Hua W, Zheng N, Huang FY, Wang J, Tian M, and Huang Q
- Subjects
- Humans, Animals, Mice, Microplastics, Polystyrenes toxicity, Lysosomes, Lipids, Chemical and Drug Induced Liver Injury, Nanoparticles, Water Pollutants, Chemical
- Abstract
Nanoplastics (NPs) continue to accumulate in global aquatic and terrestrial systems, posing a potential threat to human health through the food chain and/or other pathways. Both in vivo and in vitro studies have confirmed that the liver is one of the main organs targeted for the accumulation of NPs in living organisms. However, whether exposure to NPs induces size-dependent disorders of liver lipid metabolism remains controversial, and the reversibility of NPs-induced hepatotoxicity is largely unknown. In this study, the effects of long-term exposure to environmentally relevant doses of polystyrene nanoplastics (PS-NPs) on lipid accumulation were investigated in terms of autophagy and lysosomal mechanisms. The findings indicated that hepatic lipid accumulation was more pronounced in mice exposed to 100 nm PS-NPs compared to 500 nm PS-NPs. This effect was effectively alleviated after 50 days of self-recovery for 100 nm and 500 nm PS-NPs exposure. Mechanistically, although PS-NPs exposure activated autophagosome formation through ERK (mitogen-activated protein kinase 1)/mTOR (mechanistic target of rapamycin kinase) signaling pathway, the inhibition of Rab7 (RAB7, member RAS oncogene family), CTSB (cathepsin B), and CTSD (cathepsin D) expression impaired lysosomal function, thereby blocking autophagic flux and contributing to hepatic lipid accumulation. After termination of PS-NPs exposure, lysosomal exocytosis was responsible for the clearance of PS-NPs accumulated in lysosomes. Furthermore, impaired lysosomal function and autophagic flux inhibition were effectively alleviated. This might be the main reason for the alleviation of PS-NPs-induced lipid accumulation after recovery. Collectively, we demonstrate for the first time that lysosomes play a dual role in the persistence and reversibility of hepatotoxicity induced by environmental relevant doses of NPs, which provide novel evidence for the prevention and intervention of liver injury associated with nanoplastics exposure., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2024
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36. [Mechanism of bulleyaconitine A in inhibiting bone destruction of rheumatoid arthritis via Src/PI3K/Akt signaling pathway].
- Author
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Huang FY, Guo WY, Chen PP, Zhang XZ, Li ZH, Huang HL, Lin N, Su XH, and Kong XY
- Subjects
- Animals, Proto-Oncogene Proteins c-akt genetics, Phosphatidylinositol 3-Kinases genetics, Molecular Docking Simulation, Signal Transduction, RNA, Messenger, Arthritis, Rheumatoid drug therapy, Arthritis, Rheumatoid genetics, Arthritis, Experimental, Drugs, Chinese Herbal pharmacology, Aconitine analogs & derivatives
- Abstract
Based on the sarcoma receptor coactivator(Src)/phosphatidylinositol 3-kinase(PI3K)/protein kinase B(Akt) signaling pathway, the mechanism of action of bulleyaconitine A in the treatment of bone destruction of experimental rheumatoid arthritis(RA) was explored. Firstly, key targets of RA bone destruction were collected through GeneCards, PharmGKB, and OMIM databa-ses. Potential targets of bulleyaconitine A were collected using SwissTargetPrediction and PharmMapper databases. Next, intersection targets were obtained by the Venny 2.1.0 platform. Protein-protein interaction(PPI) network and topology analysis were managed by utilizing the STRING database and Cytoscape 3.8.0. Then, Gene Ontology(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) enrichment analyses were conducted in the DAVID database. AutoDock Vina was applied to predict the molecular docking and binding ability of bulleyaconitine A with key targets. Finally, a receptor activator of nuclear factor-κB(RANKL)-induced osteoclast differentiation model was established in vitro. Quantitative real-time polymerase chain reaction(qRT-PCR) was used to detect the mRNA expression levels of related targets, and immunofluorescence and Western blot were adopted to detect the protein expression level of key targets. It displayed that there was a total of 29 drug-disease targets, and Src was the core target of bulleyaconitine A in anti-RA bone destruction. Furthermore, KEGG enrichment analysis revealed that bulleyaconitine A may exert an anti-RA bone destruction effect by regulating the Src/PI3K/Akt signaling pathway. The molecular docking results showed that bulleyaconitine A had better bin-ding ability with Src, phosphatidylinositol-4,5-diphosphate 3-kinase(PIK3CA), and Akt1. The result of the experiment indicated that bulleyaconitine A not only dose-dependently inhibited the mRNA expression levels of osteoclast differentiation-related genes cathepsin K(CTSK) and matrix metalloproteinase-9(MMP-9)(P<0.01), but also significantly reduced the expression of p-c-Src, PI3K, as well as p-Akt in vitro osteoclasts(P<0.01). In summary, bulleyaconitine A may inhibit RA bone destruction by regulating the Src/PI3K/Akt signaling pathway. This study provides experimental support for the treatment of RA bone destruction with bulleyaconitine A and lays a foundation for the clinical application of bulleyaconitine A.
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- 2024
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37. Metabolic coupling of arsenic, carbon, nitrogen, and sulfur in high arsenic geothermal groundwater: Evidence from molecular mechanisms to community ecology.
- Author
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Zhang LZ, Xing SP, Huang FY, Xiu W, Rensing C, Zhao Y, and Guo H
- Subjects
- Carbon metabolism, Nitrogen metabolism, Sulfur metabolism, Arsenic chemistry, Groundwater chemistry, Water Pollutants, Chemical analysis
- Abstract
Groundwater arsenic (As) poses a global environmental problem and is regulated by complex biogeochemical processes. However, the As biogeochemistry and its metabolic coupling with carbon (C), nitrogen (N), and sulfur (S) in high As geothermal groundwater remain unclear. Here, we reported significant shifts in the geothermal groundwater microbiome and its functional ecological clusters along the flow path with increased As levels and dynamic As-C-N-S biogeochemical cycle from the Guide Basin, China. Strong associations among As(III), NH
4 + , HCO3 - , and corresponding functional microbial taxa suggest that microbe-mediated As transformation, ammonification, and organic carbon biodegradation potentially contributed to the As mobilization in the discharge area. And As oxidizers (coupling with denitrification or carbon fixation) and S oxidizers were closely linked to the transformation of As(III) to immobile As(V) in the recharge area. Our study provides a comprehensive insight into the complex microbial As-C-N-S coupling network and its potential role in groundwater As mobilization under hydrological disturbances., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)- Published
- 2024
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38. Long-term seawall barriers lead to the formation of an urban coastal lagoon with increased antibiotic resistome.
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Zhou SY, Yang K, Neilson R, Li H, Li HZ, Zhou YY, Liu J, Su JQ, and Huang FY
- Subjects
- Humans, Ecosystem, Bacteria genetics, Drug Resistance, Microbial genetics, Anti-Bacterial Agents pharmacology, Genes, Bacterial
- Abstract
Urbanization has increased the spread of antibiotic resistance genes (ARGs) impacting urban aquatic ecosystems and threatening human health. However, an overview of the antibiotic resistome in artificial coastal lagoons formed by coastal seawall construction is unclear. This study investigated the resistome of sediment in a coastal lagoon, established for over 60 years and found that the composition of the resistome in the lagoon sediments associated with the seawall significantly differed from that of marine sediment external to the seawall. Moreover, the diversity, number, relative abundance, and absolute abundance of the antibiotic resistome in the lagoon sediments were significantly higher compared to marine sediment. Network analyses revealed that more co-occurrences were found in lagoon sediment between bacterial communities, ARGs and mobile genetic elements (MGEs) than in marine sediments, suggesting that bacteria in lagoon sediments may be associated with multiple antibiotic resistances. Random forest and structural equation models showed that an increase in the absolute abundance of MGEs had a concomitant effect on the absolute abundance and diversity of ARGs, whereas increasing salinity decreased the absolute abundance of ARGs. This study provides a basis to assess the risk of resistome diffusion and persistence in an artificial coastal lagoon., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interest or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
- Published
- 2024
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39. [High-throughput qPCR and Amplicon Sequencing as Complementary Methods for Profiling Antibiotic Resistance Genes in Urban Wetland Parks].
- Author
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Huang FY, Zhou SY, Pan T, Zhou XY, Su JQ, and Zhang X
- Subjects
- Humans, Wetlands, Anti-Bacterial Agents analysis, Drug Resistance, Microbial genetics, Bacteria genetics, Genes, Bacterial genetics, Microbiota
- Abstract
Urban wetland parks are an important practice for urban wetland protection and utilization due to the vast ecosystem service value. As emerging contaminants, antibiotic resistance genes (ARGs) are great attractions for environmental research and public concerns. Based on high-throughput qPCR and high-throughput amplicon sequencing techniques, we investigated the occurrence, abundance, and distribution profiles of antibiotic resistance genes in the aquatic environment of Xiamen urban wetland parks (five sites). The influencing factors and driving mechanisms of antibiotic resistance genes were deciphered on the basis of microbial community structure and water quality. Diverse and abundant ARGs were observed and coexisted in urban wet parks. A total of 217 ARGs were detected in the water body of urban wetland parks, with an abundance up to 6.48×10
9 copies·L-1 . Urban wetland parks were important hotspots and repositories of the antibiotic resistome. A total of nine bacterial genera, including Marivivens , NS5_marine_group , and Planktomarina, were identified as the potential carriers of diverse resistance genes (41 ARGs). The microbial communities could alone explain 51% of alterations in the antibiotic resistome in the aquatic environment of the urban wetland parks. Therefore, the microbial community was the key driving force for the occurrence and evolution of ARGs in urban wetland parks. Based on the results, with the presence of ARGs and antibiotic resistance bacteria, it is suggested that the water environments of urban wetland parks have potential risks of water ecological security and human health, and it is necessary to further enhance the research and control of microbial contaminants in the aquatic environment of urban wetland parks.- Published
- 2024
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40. [Response of Cadmium in Soil-rice to Different Conditioners Based on Field Trials].
- Author
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Tang LB, Liu XC, Song B, Ma LJ, and Huang FY
- Subjects
- Soil chemistry, Cadmium analysis, Fertilizers analysis, Calcium Carbonate, Oryza chemistry, Soil Pollutants analysis, Phosphates
- Abstract
A plot experiment was carried out to assess the applicability of soil conditioners on Cd-polluted acidic paddy fields. The effects of five soil conditioners[Tianxiang 1 Hao (TX1), limestone (Li), silicon fertilizer, Nuodikang (NDK), and calcium magnesium phosphate fertilizer (CaMg-P)] on Cd accumulation and transport between contaminated soil and rice plants and rice yield on the land were analyzed. The results showed that compared with that under the control, other tested methods increased soil pH by 0.41-0.68 units and decreased available Cd content in the soil by 11.2%-39.7%. The difference between Li- and NDK-treated soil available Cd reached a significant level ( P < 0.05). ② Compared with that in the blank control, the application of soil conditioner could significantly reduce the total amount of Cd in rice, and the Cd content in roots, other leaves, rachises, chaffs, and brown rice were significantly lower than those in the CK treatment ( P < 0.05). The Cd translation factor between various sites was shown as TF
roots-other nodes > TFroots-first nodes > TFroots-rachises > TFroots-chaffs ≈ TFroots-flag leaves > TFroots-brown rice . The Cd content of brown rice met the national safety standard (0.2 mg·kg-1 ), in which the TX1, Li, and CaMg-P treatments showed significant Cd reduction effects, and ω (Cd) was 0.097, 0.094, and 0.134 mg·kg-1 , respectively. ③ The application of soil conditioner could increase the yield by 9.9%-35.8%, and the yield of the CaMg-P and TX1 treatments was significantly higher than that of other treatments ( P < 0.05). ④ Correlation analysis showed that the Cd content in brown rice was significantly positively correlated with available Cd content in soil, available Fe content in soil, and available phosphorus but negatively correlated with soil pH. In summary, TX1 and CaMg-P are recommended to be applied in farmland lightly polluted by the heavy metal Cd to ensure the safety of agricultural products.- Published
- 2024
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41. Gankyrin inhibits ferroptosis through the p53/SLC7A11/GPX4 axis in triple-negative breast cancer cells.
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Lei M, Zhang YL, Huang FY, Chen HY, Chen MH, Wu RH, Dai SZ, He GS, Tan GH, and Zheng WP
- Subjects
- Humans, Animals, Mice, Proto-Oncogene Proteins c-mdm2 metabolism, Tumor Suppressor Protein p53 genetics, Tumor Suppressor Protein p53 metabolism, Fibroblasts metabolism, Amino Acid Transport System y+ genetics, Triple Negative Breast Neoplasms genetics, Triple Negative Breast Neoplasms pathology, Ferroptosis
- Abstract
Gankyrin is found in high levels in triple-negative breast cancer (TNBC) and has been established to form a complex with the E3 ubiquitin ligase MDM2 and p53, resulting in the degradation of p53 in hepatocarcinoma cells. Therefore, this study sought to determine whether gankyrin could inhibit ferroptosis through this mechanism in TNBC cells. The expression of gankyrin was investigated in relation to the prognosis of TNBC using bioinformatics. Co-immunoprecipitation and GST pull-down assays were then conducted to determine the presence of a gankyrin and MDM2 complex. RT-qPCR and immunoblotting were used to examine molecules related to ferroptosis, such as gankyrin, p53, MDM2, SLC7A11, and GPX4. Additionally, cell death was evaluated using flow cytometry detection of 7-AAD and a lactate dehydrogenase release assay, as well as lipid peroxide C11-BODIPY. Results showed that the expression of gankyrin is significantly higher in TNBC tissues and cell lines, and is associated with a poor prognosis for patients. Subsequent studies revealed that inhibiting gankyrin activity triggered ferroptosis in TNBC cells. Additionally, silencing gankyrin caused an increase in the expression of the p53 protein, without altering its mRNA expression. Co-immunoprecipitation and GST pull-down experiments indicated that gankyrin and MDM2 form a complex. In mouse embryonic fibroblasts lacking both MDM2 and p53, this gankyrin/MDM2 complex was observed to ubiquitinate p53, thus raising the expression of molecules inhibited by ferroptosis, such as SLC7A11 and GPX4. Furthermore, silencing gankyrin in TNBC cells disrupted the formation of the gankyrin/MDM2 complex, hindered the degradation of p53, increased SLC7A11 expression, impeded cysteine uptake, and decreased GPX4 production. Our findings suggest that TNBC cells are able to prevent cell ferroptosis through the gankyrin/p53/SLC7A11/GPX4 signaling pathway, indicating that gankyrin may be a useful biomarker for predicting TNBC prognosis or a potential therapeutic target., (© 2023. The Author(s).)
- Published
- 2023
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42. FAT4 loss initiates hepatocarcinogenesis through the switching of canonical to noncanonical WNT signaling pathways.
- Author
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Huang FY, Wong DK, Mak LY, Cheung TT, Zhang SS, Chau HT, Hui RW, Seto WK, and Yuen MF
- Subjects
- Humans, Mice, Animals, beta Catenin genetics, beta Catenin metabolism, Wnt Signaling Pathway genetics, Wnt Proteins genetics, Carcinogenesis genetics, Laminin, RNA, Cadherins genetics, Tumor Suppressor Proteins genetics, Tumor Suppressor Proteins metabolism, Carcinoma, Hepatocellular pathology, Liver Neoplasms pathology
- Abstract
Background: Mutation and downregulation of FAT atypical cadherin 4 (FAT4) are frequently detected in HCC, suggesting a tumor suppressor role of FAT4. However, the underlying molecular mechanism remains elusive., Methods: CRISPR-Cas9 system was used to knockout FAT4 (FAT4-KO) in a normal human hepatic cell line L02 to investigate the impact of FAT4 loss on the development of HCC. RNA-sequencing and xenograft mouse model were used to study gene expression and tumorigenesis, respectively. The mechanistic basis of FAT4 loss on hepatocarcinogenesis was elucidated using in vitro experiments., Results: We found that FAT4-KO disrupted cell-cell adhesion, induced epithelial-mesenchymal transition, and increased expression of extracellular matrix components. FAT4-KO is sufficient for tumor initiation in a xenograft mouse model. RNA-sequencing of FAT4-KO cells identified PAK6-mediated WNT/β-catenin signaling to promote tumor growth. Suppression of PAK6 led to β-catenin shuttling out of the nucleus for ubiquitin-dependent degradation and constrained tumor growth. Further, RNA-sequencing of amassed FAT4-KO cells identified activation of WNT5A and ROR2. The noncanonical WNT5A/ROR2 signaling has no effect on β-catenin and its target genes (CCND1 and c-Myc) expression. Instead, we observed downregulation of receptors for WNT/β-catenin signaling, suggesting the shifting of β-catenin-dependent to β-catenin-independent pathways as tumor progression depends on its receptor expression. Both PAK6 and WNT5A could induce the expression of extracellular matrix glycoprotein, laminin subunit alpha 4. Laminin subunit alpha 4 upregulation in HCC correlated with poor patient survival., Conclusions: Our data show that FAT4 loss is sufficient to drive HCC development through the switching of canonical to noncanonical Wingless-type signaling pathways. The findings may provide a mechanistic basis for an in-depth study of the two pathways in the early and late stages of HCC for precise treatment., (Copyright © 2023 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Association for the Study of Liver Diseases.)
- Published
- 2023
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43. Distinct patterns of the soil and phyllosphere antibiotic resistome in natural forest ecosystems under an altitudinal gradient.
- Author
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Zhou SY, Huang FY, Su W, Lie Z, Liu Y, Lin C, Yang K, Meng Z, Liu Z, Neilson R, Su JQ, and Liu J
- Subjects
- Ecosystem, Anti-Bacterial Agents, Plants, Soil Microbiology, Soil, Genes, Bacterial
- Abstract
Warming affects microbial functioning of soil and the phyllosphere across global ecosystems. However, little is known about the impact of increasing temperature on antibiotic resistome profiles in natural forests. To address this issue, we investigated antibiotic resistance genes (ARGs) in both soil and the plant phyllosphere using an experimental platform established in a forest ecosystem that delivers a temperature difference of 2.1 °C along an altitudinal gradient. Principal Coordinate Analysis (PCoA) showed that there were significant differences in the composition of soil and plant phyllosphere ARGs at different altitudes (P = 0.001). The relative abundance of phyllosphere ARGs and mobile genetic elements (MGEs) and soil MGEs increased with temperature. More resistance gene classes increased in abundance in the phyllosphere (10 classes) than soil (2 classes), and a Random Forest model analysis suggested that phyllosphere ARGs were more sensitive to temperature change than soil. Increasing temperature as a direct consequence of an altitudinal gradient, and the relative abundance of MGEs were the main drivers that shaped the profiles of ARGs in the phyllosphere and soil. Biotic and abiotic factors affected phyllosphere ARGs indirectly via MGEs. This study enhances our understanding of the influence of altitude gradients on resistance genes in natural environments., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interest or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
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44. An alternative to opioid-based intravenous patient controlled analgesia in severe burn patients undergoing full thickness split graft in upper limbs.
- Author
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Shih BF, Huang FY, Shen SJ, Zheng CW, Lee CW, Yang MW, Chou AH, Chuang SS, and Tsai HI
- Subjects
- Humans, Analgesia, Patient-Controlled, Pain, Postoperative drug therapy, Analgesics therapeutic use, Upper Extremity, Analgesics, Opioid therapeutic use, Burns surgery, Burns drug therapy
- Abstract
Background: Opioids provide good analgesic effect in burn patients during acute phase, but these patients may develop tolerance after prolonged exposure. Alternative analgesic strategies such as peripheral nerve blocks appear to provide adequate pain control while sparing opioid-related side effects. The purpose of this study was to evaluate intravenous patient-controlled analgesia (IV-PCA) and continuous peripheral nerve block (CPNB-PCA) in severe burn patients with relatively young age undergoing repeated debridement and large-area full thickness skin graft (FTSG)., Methods: The records of victims in dust explosion in Taiwan in 2016 from Chang Gung Memorial Hospital Pain Service Database between 2016 June and 2017 December were evaluated. The patients' demographic data including age, gender, weight, burn area, degree of burn, type of PCA regimen (IV-PCA versus CPNB-PCA), size of FTSG, and adverse effects were collected., Results: The total in-hospital morphine consumption was significantly lower in CPNB-PCA than IV-PCA group. A trend of decrease in numerical rating scores (NRS) was observed for both groups and CPNB group had comparable NRS than IV-PCA group at rest. On movement, CPNB grouped had significantly lower NRS than IV-PCA on post-operative day 3., Conclusion: Our study demonstrated that in patients requiring high dosage of opioid, CPNB may be a suitable alternative for pain control.
- Published
- 2023
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45. Compliance, procrastination and refusal: American COVID-19 vaccination trust and value orientation.
- Author
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Tzeng R, Huang FY, and Lee J
- Subjects
- Adult, Humans, COVID-19 Vaccines, Social Values, Trust, Vaccination, Breakthrough Infections, Procrastination, COVID-19 prevention & control
- Abstract
Introduction: COVID-19 vaccine hesitancy studies, most of which were completed prior to the release of the vaccine, speculated on factors that might influence inoculation intention when a vaccine was introduced. This paper examines actual vaccination decisions among US residents after COVID-19 vaccines were approved, with a focus on trust in vaccine effectiveness, increased trust in government pandemic response, and individual-versus-collective value orientation., Method: The data set was from the Kaiser Family Foundation COVID-19 Vaccine Monitor, a nationally representative sample reflecting the opinions of 1519 American adults aged 18 and above. Data were collected in September 2021-approximately nine months after the first COVID-19 vaccines were approved for distribution. Indicators of trust in vaccine effectiveness included individual opinions regarding breakthrough infections and vaccine boosters. Increased trust in government indicated approval of official COVID-19 responses, and value orientation denoted respondent emphasis on personal choice versus protecting the health of others. We established three categories of a vaccine hesitancy dependent variable: none, some, and full rejection. A multinomial regression analysis was employed to compare vaccine hesitancy in three pairs of contrasting groups., Results: While we noted distinct patterns in decision-making factors for each of the contrasting pairs, we also observed strong effects for trust in vaccine effectiveness and value orientation on vaccine decisions across all three. Both effects were more substantial than those associated with three control variables-social-demographic characteristics, political party affiliation, and health risk., Conclusion: Our findings suggest that in order to increase vaccination rates, policymakers and influencers should focus on reducing individual scepticism over breakthrough infections and vaccine boosters, and on influencing a value orientation shift from personal choice to social responsibility., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
- Published
- 2023
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46. Contamination characteristics and source analysis of potentially toxic elements in dustfall-soil-crop systems near non-ferrous mining areas of Yunnan, southwestern China.
- Author
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Luo Y, Wang Z, Zhang ZL, Zhang JQ, Zeng QP, Tian D, Li C, Huang FY, Chen S, and Chen L
- Subjects
- Soil, China, Vehicle Emissions analysis, Environmental Monitoring methods, Risk Assessment, Metals, Heavy analysis, Soil Pollutants analysis
- Abstract
Potentially toxic elements (PTEs) in the dustfall-soil-crop system pose a serious threat to the ecological environment and agricultural production. However, there is still a knowledge gap in terms of better understanding the distinctive sources of PTEs by integrating various models and technologies. In this study, we comprehensively investigated the concentrations, distribution, and sources of seven PTEs in a dustfall-soil-crop system (424 samples in total) near a typical non-ferrous mining area, using absolute principal component score/multiple linear regression (APCS/MLR) combined with X-ray diffraction (XRD) and microscopy techniques. Our results showed that the mean values of As, Cd, Cr, Cu, Ni, Pb, and Zn in the soils were 211, 14, 105, 91, 65, 232, and 325 mg/kg, respectively. These values were significantly higher than the background soil values in Yunnan. Except for Ni and Cr, all elements in the soil were significantly higher than the screening values of agricultural lands in China. The spatial distribution of PTE concentrations was similar among the three media. The ACPS/MLR, XRD, and microscopy analyses further indicated that soil PTEs mainly originated from industrial activities (37 %), vehicle emissions and agricultural activities (29 %), respectively. Dustfall PTEs mainly originated from vehicle emissions and industrial activities, accounting for 40 % and 37 %, respectively. Crop PTEs mainly originated from vehicle emissions and soil (57 %), and agricultural activities (11 %), respectively. PTEs seriously threaten the safety of agricultural products and the ecological environment once they settle from the atmosphere to soil and crop leaves, further accumulate in crops, and spread through the food chain. Therefore, our study provides scientific evidence for government regulators to control PTE pollution and reduce their environmental risks in dustfall-soil-crop systems., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
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47. [Distribution and Driving Mechanisms of Antibiotic Resistance Genes in Desert-Oasis Continuum].
- Author
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Huang FY, Zhou SY, Su JQ, and Zhu YG
- Subjects
- Humans, Anti-Bacterial Agents pharmacology, Drug Resistance, Microbial genetics, Soil, Agriculture, Microbiota
- Abstract
The oasis agro-ecosystem is a complex ecosystem with intensive human activities in arid areas. Microbial antibiotic resistance is posing threats to human health and ecological balance. It is of great importance to investigate the diversity, distribution profiles, and driving factors of soil antibiotic resistance genes under different land use patterns in a desert-oasis continuum, especially for assessing soil environmental and human health risks in arid regions. In this study, high throughput sequencing combined with high throughput quantitative PCR were used to investigate the microbial community structure and patterns of antibiotic resistance genes in a desert-oasis continuum, aiming to explore the distribution characteristics and driving mechanisms of soil resistance genes. The results showed that the diversity and abundance of antibiotic resistance increased significantly from the edge of desert to the central oasis, along with Dest, Cotn, Maiz, Reed, and Sedt, consecutively, implying that farmland soil was an important reservoir of resistance genes, which was closely related to land use and land cover change. Soil microbial communities were significantly correlated with antibiotic resistance genes. Thiobacillus, Pontibacter, Nocardioides, Salinimicrobium, Solirubrobacter , and Streptomyces were important potential hosts of various resistance genes. The patterns of antibiotic resistance genes were shaped by heavy metal elements, MGEs, and microbial communities in arid soil, which accumulatively accounted for 70% of the variations in resistance genes alone or together and therefore drove the occurrence, enrichment, and evolution of resistance genes in agricultural soil of the desert-oasis continuum.
- Published
- 2023
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48. [Intervention effect of Qufeng Gutong Cataplasm on myofascial pain syndrome in rats and its mechanism].
- Author
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Tao XY, Wang C, Huang FY, Zhang XZ, Liu CF, Su XH, and Lin N
- Subjects
- Rats, Male, Animals, Rats, Sprague-Dawley, Tumor Necrosis Factor-alpha, Phosphatidylinositol 3-Kinases, Pain, Proto-Oncogene Proteins c-akt, Myofascial Pain Syndromes drug therapy
- Abstract
This paper aims to investigate the intervention effect of Qufeng Gutong Cataplasm(QFGT) on myofascial pain syndrome(MPS) in rats and to preliminarily explain its mechanism from the perspective of improving muscle inflammation and pain. Male SD rats were divided into 6 groups, namely normal group, model group, positive control drug(Huoxue Zhitong Ointment, HXZT) group, and low, medium, and high-dose QFGT groups(75, 150, and 300 mg·d~(-1)). The rat model of MPS was established by striking combined with centrifugation for 8 weeks, during which QFGT and HXZT were used for corresponding intervention. Standard VonFrey fiber was used to evaluate the mechanical pain threshold, and acetone was used to detect the cold pain threshold. The electrophysiological activity of muscle at trigger point was detected, and the electromuscular analysis of trigger point was performed. CatWalk gait analyzer was used to detect pain-induced gait adaptation changes. The hematoxylin-eosin(HE) staining was used to observe the pathological changes in muscle and skin tissues at the trigger point of rats. Immunohistochemistry was used to detect the expression of capsaicin receptor transient receptor potential vanilloid 1(TRPV1) in muscle tissues and interleukin(IL)-33 in skin tissues at the trigger point. The protein expression levels of TRPV1, protein kinase B(Akt), phosphorylated protein kinase B(p-Akt), IL-1β, and tumor necrosis factor-α(TNF-α) in muscle tissues at the trigger point were detected by Western blot. The results showed that as compared with the model group, the mechanical pain threshold and cold pain threshold of rats in other groups were increased after treatment with QFGT. The spontaneous electromyography(EMG) activity was observed in the model group, but QFGT alleviated the EMG activity in a dose-dependent manner. Gait analysis showed that standing duration, average intensity, swing speed, maximum contact point, maximum contact area, paw print length, paw print width, and paw print area were significantly improved in all QFGT groups. Pathological results showed that the disorder of muscle arrangement at the trigger point was decreased, muscle fiber adhesion and atrophy were reduced, and inflammatory cell infiltration was alleviated after treatment with QFGT. In addition, QFGT and HXZT both inhibited the protein expression of TRPV1, PI3K, Akt, p-Akt, IL-1β, and TNF-α in the muscle tissues of rats with MPS. However, there was no significant difference in the pathological structure and expression of IL-33 in the treated skin as compared with the normal group. The related results have proved that QFGT can inhibit the release of inflammatory factors by inhibiting the TRPV1/PI3K/Akt signaling pathway in the muscle trigger point of rats with MPS and finally attenuate the atrophy and adhesion of local muscles and inflammatory infiltration, thereby relieving the muscle pain of rats with MPS, and local administration has no skin irritation.
- Published
- 2023
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49. Enhanced electroencephalography effective connectivity in frontal low-gamma band correlates of emotional regulation after mindfulness training.
- Author
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Ng HH, Wu CW, Huang FY, Huang CM, Hsu CF, Chao YP, Jung TP, and Chuang CH
- Subjects
- Brain physiology, Electroencephalography, Multivariate Analysis, Emotional Regulation, Mindfulness methods
- Abstract
Practicing mindfulness, focusing attention on the internal and external experiences occurring in the present moment with open and nonjudgement stance, can lead to the development of emotional regulation skills. Yet, the effective connectivity of brain regions during mindfulness has been largely unexplored. Studies have shown that mindfulness practice promotes functional connectivity in practitioners, potentially due to improved emotional regulation abilities and increased connectivity in the lateral prefrontal areas. To examine the changes in effective connectivity due to mindfulness training, we analyzed electroencephalogram (EEG) signals taken before and after mindfulness training, focusing on training-related effective connectivity changes in the frontal area. The mindfulness training group participated in an 8-week mindfulness-based stress reduction (MBSR) program. The control group did not take part. Regardless of the specific mindfulness practice used, low-gamma band effective connectivity increased globally after the mindfulness training. High-beta band effective connectivity increased globally only during Breathing. Moreover, relatively higher outgoing effective connectivity strength was seen during Resting and Breathing and Body-scan. By analyzing the changes in outgoing and incoming connectivity edges, both F7 and F8 exhibited strong parietal connectivity during Resting and Breathing. Multiple regression analysis revealed that the changes in effective connectivity of the right lateral prefrontal area predicted mindfulness and emotional regulation abilities. These results partially support the theory that the lateral prefrontal areas have top-down modulatory control, as these areas have high outflow effective connectivity, implying that mindfulness training cultivates better emotional regulation., (© 2023 Wiley Periodicals LLC.)
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- 2023
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50. Response of microbial taxonomic and nitrogen functional attributes to elevated nitrate in suburban groundwater.
- Author
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Zhang LZ, He W, Huang FY, He W, Zhou P, Chen C, Rensing C, Brandt KK, He J, Liu F, Zhao Y, and Guo H
- Subjects
- Nitrogen analysis, Nitrates analysis, Denitrification, Environmental Monitoring methods, China, Water Pollutants, Chemical analysis, Groundwater chemistry
- Abstract
Anthropogenic nitrogen (N) input has led to elevated levels of nitrate nitrogen (NO
3 - -N) in the groundwater. However, insights into the responses of the microbial community and its N metabolic functionality to elevated NO3 - -N in suburban groundwater are still limited. Here, we explored the microbial taxonomy, N metabolic attributes, and their responses to NO3 - -N pollution in groundwaters from Chaobai River catchment (CR) and Huai River catchment (HR) in Beijing, China. Results showed that average NO3 - -N and NH4 + -N concentrations in CR groundwater were 1.7 and 3.0 folds of those in HR. NO3 - -N was the dominant nitrogen specie both in HR and CR groundwater (over 80 %). Significantly different structures and compositions of the microbial communities and N cycling gene profiles were found between CR groundwater and HR groundwater (p < 0.05), with CR groundwater harboring significantly lower microbial richness and abundance of N metabolic genes. However, denitrification was the dominant microbial N cycling process in both CR and HR groundwater. Strong associations among NO3 - -N, NH4 + -N, microbial taxonomic, and N functional attributes were found (p < 0.05), suggesting denitrifiers and Candidatus_Brocadia might serve as potential featured biomarkers for the elevated NO3 - -N and NH4 + -N concentration in groundwater. Path analysis further revealed the significant effect of NO3 - -N on the overall microbial N functionality and microbial denitrification (p < 0.05). Collectively, our results provide field evidence that elevated levels of NO3 - -N and NH4 + -N under different hydrogeologic conditions had a significant effect on the microbial taxonomic and N functional attributes in groundwater, with potential implications for improving sustainable N management and risk assessment of groundwater., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)- Published
- 2023
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