96 results on '"Xie WZ"'
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2. A generalizable sensing platform based on molecularly imprinted polymer-aptamer double recognition and nanoenzyme assisted photoelectrochemical-colorimetric dual-mode detection.
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Shen YZ, Xie WZ, Wang Z, Ning KP, Ji ZP, Li HB, Hu XY, Ma C, and Qin X
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- Colorimetry methods, Peroxidase chemistry, Peroxidases, Molecularly Imprinted Polymers, Biosensing Techniques
- Abstract
Developing highly sensitive and selective methods that incorporate specific recognition elements is crucial for detecting small molecules because of the limited availability of small molecule antibodies and the challenges in obtaining sensitive signals. In this study, a generalizable photoelectrochemical-colorimetric dual-mode sensing platform was constructed based on the synergistic effects of a molecularly imprinted polymer (MIP)-aptamer sandwich structure and nanoenzymes. The MIP functionalized peroxidase-like Fe
3 O4 (Fe3 O4 @MIPs) and alkaline phosphatase mimic Zr-MOF labeled aptamer (Zr-mof@Apt) were used as the recognition elements. By selectively accumulating dibutyl phthalate (DBP), a small molecule target model, on Fe3 O4 @MIPs, the formation of Zr-MOF@Apt-DBP- Fe3 O4 @MIPs sandwich structure was triggered. Fe3 O4 @MIPs oxidized TMB to form blue-colored oxTMB. However, upon selective accumulation of DBP, the catalytic activity of Fe3 O4 @MIPs was inhibited, resulting in a lighter color that was detectable by the colorimetric method. Additionally, Zr-mof@Apt effectively catalyzed the hydrolysis of L-Ascorbic acid 2-phosphate sesquimagnesium salt hydrate (AAPS), generating ascorbic acid (AA) that could neutralize the photogenerated holes to decrease the photocurrent signals for PEC sensing and reduce oxTMB for colorimetric testing. The dual-mode platform showed strong linearity for different concentrations of DBP from 1.0 pM to 10 μM (PEC) and 0.1 nM to 0.5 μM (colorimetry). The detection limits were 0.263 nM (PEC) and 30.1 nM (colorimetry) (S/N = 3), respectively. The integration of dual-signal measurement mode and sandwich recognition strategy provided a sensitive and accurate platform for the detection of small molecules., 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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3. P. gingivalis in oral-prostate axis exacerbates benign prostatic hyperplasia via IL-6/IL-6R pathway.
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Wang SY, Cai Y, Hu X, Li F, Qian XH, Xia LY, Gao B, Wu L, Xie WZ, Gu JM, Deng T, Zhu C, Jia HC, Peng WQ, Huang J, Fang C, and Zeng XT
- Subjects
- Male, Rats, Humans, Animals, Prostate, Periodontitis complications, Periodontitis microbiology, Aged, Middle Aged, Rats, Sprague-Dawley, Disease Models, Animal, Signal Transduction physiology, Prostatic Hyperplasia complications, Porphyromonas gingivalis pathogenicity, Interleukin-6 analysis, Interleukin-6 metabolism, Receptors, Interleukin-6
- Abstract
Background: Benign prostatic hyperplasia (BPH) is the most common disease in elderly men. There is increasing evidence that periodontitis increases the risk of BPH, but the specific mechanism remains unclear. This study aimed to explore the role and mechanism of the key periodontal pathogen Porphyromonas gingivalis (P. gingivalis) in the development of BPH., Methods: The subgingival plaque (Sp) and prostatic fluid (Pf) of patients with BPH concurrent periodontitis were extracted and cultured for 16S rDNA sequencing. Ligature-induced periodontitis, testosterone-induced BPH and the composite models in rats were established. The P. gingivalis and its toxic factor P. gingivalis lipopolysaccharide (P.g-LPS) were injected into the ventral lobe of prostate in rats to simulate its colonization of prostate. P.g-LPS was used to construct the prostate cell infection model for mechanism exploration., Results: P. gingivalis, Streptococcus oralis, Capnocytophaga ochracea and other oral pathogens were simultaneously detected in the Pf and Sp of patients with BPH concurrent periodontitis, and the average relative abundance of P. gingivalis was found to be the highest. P. gingivalis was detected in both Pf and Sp in 62.5% of patients. Simultaneous periodontitis and BPH synergistically aggravated prostate histological changes. P. gingivalis and P.g-LPS infection could induce obvious hyperplasia of the prostate epithelium and stroma (epithelial thickness was 2.97- and 3.08-fold that of control group, respectively), and increase of collagen fibrosis (3.81- and 5.02-fold that of control group, respectively). P. gingivalis infection promoted prostate cell proliferation, inhibited apoptosis, and upregulated the expression of inflammatory cytokines interleukin-6 (IL-6; 4.47-fold), interleukin-6 receptor-α (IL-6Rα; 5.74-fold) and glycoprotein 130 (gp130; 4.47-fold) in prostatic tissue. P.g-LPS could significantly inhibit cell apoptosis, promote mitosis and proliferation of cells. P.g-LPS activates the Akt pathway through IL-6/IL-6Rα/gp130 complex, which destroys the imbalance between proliferation and apoptosis of prostate cells, induces BPH., Conclusion: P. gingivalis was abundant in the Pf of patients with BPH concurrent periodontitis. P. gingivalis infection can promote BPH, which may affect the progression of BPH via inflammation and the Akt signaling pathway., (© 2024. The Author(s).)
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- 2024
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4. Two haplotype-resolved genome assemblies for AAB allotriploid bananas provide insights into banana subgenome asymmetric evolution and Fusarium wilt control.
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Xie WZ, Zheng YY, He W, Bi F, Li Y, Dou T, Zhou R, Guo YX, Deng G, Zhang W, Yuan MH, Sanz-Jimenez P, Zhu XT, Xu XD, Zhou ZW, Zhou ZW, Feng JW, Liu S, Li C, Yang Q, Hu C, Gao H, Dong T, Dang J, Guo Q, Cai W, Zhang J, Yi G, Song JM, Sheng O, and Chen LL
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- Haplotypes, Gene Expression Profiling, Transcriptome, Musa genetics, Fusarium genetics
- Abstract
Bananas (Musa spp.) are one of the world's most important fruit crops and play a vital role in food security for many developing countries. Most banana cultivars are triploids derived from inter- and intraspecific hybridizations between the wild diploid ancestor species Musa acuminate (AA) and M. balbisiana (BB). We report two haplotype-resolved genome assemblies of the representative AAB-cultivated types, Plantain and Silk, and precisely characterize ancestral contributions by examining ancestry mosaics across the genome. Widespread asymmetric evolution is observed in their subgenomes, which can be linked to frequent homologous exchange events. We reveal the genetic makeup of triploid banana cultivars and verify that subgenome B is a rich source of disease resistance genes. Only 58.5% and 59.4% of Plantain and Silk genes, respectively, are present in all three haplotypes, with >50% of genes being differentially expressed alleles in different subgenomes. We observed that the number of upregulated genes in Plantain is significantly higher than that in Silk at one-week post-inoculation with Fusarium wilt tropical race 4 (Foc TR4), which confirms that Plantain can initiate defense responses faster than Silk. Additionally, we compared genomic and transcriptomic differences among the genes related to carotenoid synthesis and starch metabolism between Plantain and Silk. Our study provides resources for better understanding the genomic architecture of cultivated bananas and has important implications for Musa genetics and breeding., (Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.)
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- 2024
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5. High-quality genome assemblies for two Australimusa bananas (Musa spp.) and insights into regulatory mechanisms of superior fiber properties.
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Zhou R, Wang S, Zhan N, He W, Deng G, Dou T, Zhu XT, Xie WZ, Zheng YY, Hu C, Bi F, Gao H, Dong T, Liu S, Li C, Yang Q, Wang L, Song JM, Dang J, Guo Q, Yi G, Chen LL, and Sheng O
- Subjects
- Genome, Plant, Lignin, Musa genetics
- Abstract
Bananas (Musa spp.) are monocotyledonous plants with high genetic diversity in the Musaceae family that are cultivated mainly in tropical and subtropical countries. The fruits are a popular food, and the plants themselves have diverse uses. Four genetic groups (genomes) are thought to have contributed to current banana cultivars: Musa acuminata (A genome), Musa balbisiana (B genome), Musa schizocarpa (S genome), and species of the Australimusa section (T genome). However, the T genome has not been effectively explored. Here, we present the high-quality TT genomes of two representative accessions, Abaca (Musa textilis), with high-quality natural fiber, and Utafun (Musa troglodytarum, Fe'i group), with abundant β-carotene. Both the Abaca and Utafun assemblies comprise 10 pseudochromosomes, and their total genome sizes are 613 Mb and 619 Mb, respectively. Comparative genome analysis revealed that the larger size of the T genome is likely attributable to rapid expansion and slow removal of transposons. Compared with those of Musa AA or BB accessions or sisal (Agava sisalana), Abaca fibers exhibit superior mechanical properties, mainly because of their thicker cell walls with a higher content of cellulose, lignin, and hemicellulose. Expression of MusaCesA cellulose synthesis genes peaks earlier in Abaca than in AA or BB accessions during plant development, potentially leading to earlier cellulose accumulation during secondary cell wall formation. The Abaca-specific expressed gene MusaMYB26, which is directly regulated by MusaMYB61, may be an important regulator that promotes precocious expression of secondary cell wall MusaCesAs. Furthermore, MusaWRKY2 and MusaNAC68, which appear to be involved in regulating expression of MusaLAC and MusaCAD, may at least partially explain the high accumulation of lignin in Abaca. This work contributes to a better understanding of banana domestication and the diverse genetic resources in the Musaceae family, thus providing resources for Musa genetic improvement., (Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2024
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6. MaizeNetome: A multi-omics network database for functional genomics in maize.
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Feng JW, Han L, Liu H, Xie WZ, Liu H, Li L, and Chen LL
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- Genomics, Databases, Factual, Zea mays genetics, Multiomics
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- 2023
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7. AuNPs/graphdiyne self-powered sensing platform for sensitive detection of microRNA with DNAzyme walker for signal amplification.
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Hou YY, Xie WZ, Huang KJ, and Xu J
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- Humans, Gold, Limit of Detection, Electrochemical Techniques, MicroRNAs genetics, DNA, Catalytic, Metal Nanoparticles, Biosensing Techniques methods
- Abstract
A novel self-powered biosensor is engineered by the integration of DNAzyme walker and AuNPs/graphdiyne biosensing interface, realizing sensitive detection of target microRNA. The cleverly constructed DNAzyme walker with outstanding signal transduction ability to obtain an amplified signal response. In addition, the AuNPs/graphdiyne significantly improves electron transport speed of biosensing interface for improving the sensitivity of biosensor. A dynamic linear range of 0.05 fM-10 pM with a low detection limit of 0.015 fM (S/N = 3) is obtained by utilizing the self-powered biosensor. Meanwhile, the developed self-powered biosensor is capable of assaying miRNA-21 in human serum samples with satisfactory recoveries. This strategy provides a valid method for the sensitive microRNA detection, and shows great potential in point-care detection of tumor biomarker., 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 © 2022 Elsevier B.V. All rights reserved.)
- Published
- 2023
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8. Superior graphdiyne self-powered biosensing platform with highly sensitivity and reliability for dual-mode detection of MicroRNA by integrating T7 Exonuclease and 3D DNA walker induced rolling circle amplification.
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Hou YY, Xie WZ, Tan X, Huang KJ, and Xu J
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- Humans, Reproducibility of Results, Limit of Detection, DNA genetics, DNA analysis, Nucleic Acid Amplification Techniques, Electrochemical Techniques, MicroRNAs analysis, Biosensing Techniques
- Abstract
A highly sensitivity self-powered biosensor is developed based on T7 exonuclease (T7 Exo) and 3D DNA walker induced rolling circle amplification (RCA) for electrochemical/colorimetric dual-mode detection of microRNA-21 (miRNA-21) with improved reliability. Taking its advantage of fascinating properties, such as high structure defects and good conductivity, graphdiyne is prepared and used to prepare high-performance enzyme biofuel cell. T7 Exo-assisted 3D DNA walker target recognition triggers RCA reaction to obtain a significantly amplified signal response. A capacitor is integrated to the enzyme biofuel cell to further amplify the electrochemical output signal of the self-powered biosensor. In detection system, glucose oxidase catalyzes glucose oxidation to produce hydrogen peroxide, and 3,3',5,5'-tetramethylbenzidine (TMB) is then catalyzed to generate colored products, so as to achieve the colorimetric detection of the target. Analysis signals of diverse modes are recorded independently. Consequently, detection of microRNA with improved reliability and wider signal response range are achieved by electrochemical/colorimetric dual-mode with detection limits of 0.15 and 33 fM (S/N = 3) respectively. In addition, the proposed self-powered biosensor successfully applied for the detection of miRNA-21 in human serum samples, confirming its practical applicability in clinical diagnosis. It is powerfully anticipated the proposed self-powered biosensor possesses great potential to be applied to other biomedical domains., 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 © 2022 Elsevier B.V. All rights reserved.)
- Published
- 2023
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9. [Advances on pathogenesis of acquired peritoneal ultrafiltration failure in peritoneal dialysis].
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Jiang N, Xie WZ, Gu LY, Ni ZH, Fang W, and Yuan JZ
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- Humans, Ultrafiltration, Dialysis Solutions, Water, Glucose, Peritoneum, Peritoneal Dialysis adverse effects, Peritoneal Dialysis methods
- Abstract
Peritoneal ultrafiltration failure is a common reason for peritoneal dialysis (PD) withdrawal as well as mortality in PD patients. Based on the three-pore system, inter-cellular small pores and trans-cellular ultra-small pores (aquaporin-1) are mainly responsible for water transfer across the peritoneum. Both small and ultra-small pores-dependent water (free water) transport decline accompanied with time on PD, with more significant decrease in free water, resulting in peritoneal ultrafiltration failure. The reduction of free water transport is associated with fast peritoneal solute transfer, reduced crystalloid osmotic gradient due to increased interstitial glucose absorption, and declined osmotic conductance to glucose resulted from impaired aquaporin-1 function and peritoneal interstitial fibrosis. The decline of small pore-based water is mainly because of fast loss of crystalloid osmotic gradient, decrease of hydrostatic pressure mediated by peritoneal vasculopathy, as well as reduced absolute number of small pores. The current review discusses the advance on pathogenesis of acquired peritoneal ultrafiltration failure in long-term PD.
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- 2023
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10. All-carbon sandwich-type self-powered biosensor for ultrasensitive detection of femtomolar miRNA-141.
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Shi J, Xie WZ, Wang LR, Song YL, Lin Y, Wu Y, Luo H, Huang KJ, and Tan X
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- Humans, Gold chemistry, Carbon, Limit of Detection, Graphite chemistry, Metal Nanoparticles chemistry, Biosensing Techniques methods, MicroRNAs chemistry
- Abstract
The latest research shows that the expression level of microRNA-141 can predict the number of prostate cancer cells in the human body and has become an important biomarker. In this paper, an all-carbon sandwich self-powered biosensor based on graphene and carbon cloth is constructed for the highly sensitive detection of the prostate tumor marker miRNA-141. First, gold nanoparticles modified carbon cloth is applied for substrate electrode, and bilirubin oxidase is then immobilized on it to prepare the biocathode of the biofuel cell. Then, aptamer 1 is immobilized on gold nanoparticles-modified carbon cloth as the electrode substrate. The bioconjugate is prepared by immobilizing the aptamer 2-glucose oxidase complex on gold nanoparticles/graphene. In the biofuel cell-based self-powered sensing system, when the target microRNA-141 is present, it undergoes complementary base pairing with aptamer 1 and aptamer 2, and the bioconjugates are immobilized on the anode to form the sandwich structure. The enzyme on the anode undergoes an oxidation reaction to catalyze the reduction of oxygen, and the electrochemical respond of the system increases significantly. The results show that the concentration of microRNA-141 is proportional to the open-circuit voltage value ranging from 0.0001 to 1000 pmol/L with a detection limit of 50 amol/L (S/N = 3). The method has high sensitivity and excellent selectivity and can be applied to sensitively detect tumor marker microRNA-141 in biological matrix., 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 © 2022 Elsevier B.V. All rights reserved.)
- Published
- 2022
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11. Citrus Pan-Genome to Breeding Database (CPBD): A comprehensive genome database for citrus breeding.
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Liu H, Wang X, Liu S, Huang Y, Guo YX, Xie WZ, Liu H, Tahir Ul Qamar M, Xu Q, and Chen LL
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- Genome, Plant genetics, Plant Breeding, Citrus genetics
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- 2022
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12. A real-world study of infectious complications of venetoclax combined with decitabine or azacitidine in adult acute myeloid leukemia.
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Zhu LX, Chen RR, Wang LL, Sun JN, Zhou, Li L, Qian JJ, Zhang Y, Tong HY, Yu WJ, Meng HT, Mai WY, Xie WZ, Jin J, Ye XJ, and Zhu HH
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- Adult, Antineoplastic Combined Chemotherapy Protocols adverse effects, Bridged Bicyclo Compounds, Heterocyclic, Decitabine adverse effects, Humans, Retrospective Studies, Sulfonamides, Treatment Outcome, Azacitidine adverse effects, Leukemia, Myeloid, Acute drug therapy
- Abstract
Purpose: The purpose of this study was to identify the incidence, sites and main pathogens, and risk factors for infectious complications occurring in patients with adult acute myeloid leukemia (AML) during the first course of venetoclax combined with decitabine or azacitidine., Methods: A retrospective cohort analysis was performed of 81 patients with AML older than 14 years who received the first cycle of venetoclax combined with a hypomethylating agent (HMA) between March 2018 and March 2021 at our institution. Infectious complications, if any, were documented., Results: Among a total of 81 cases of AML, 59 (72.8%) patients occurred infections, including fever without an identifiable source (28.8%), clinically documented infections (40.7%), and microbiologically documented infections (30.5%). The most commonly isolated organism in culture was Candida albicans, followed by Klebsiella pneumonia, and Pseudomonas aeruginosa. The 4-week and 8-week mortality rates were 3.7% and 7.4%, respectively. In multivariate analysis, a high proportion of blasts in bone marrow, decreased hemoglobin level, and fever with or without a documented infection at baseline were significant independent risk factors for infectious complications., Conclusion: Compared with conventional chemotherapy, the incidence of infectious complications of venetoclax combined with decitabine or azacitidine significantly decreased. Pretreatment high leukemia burden and fever were independent risk factors for infections., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2022
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13. Periodontitis Is Associated With Heart Failure: A Population-Based Study (NHANES III).
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Yan Y, Mao M, Li YQ, Chen YJ, Yu HD, Xie WZ, Huang Q, Leng WD, and Xiong J
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Objectives: The aim of this study was to investigate the relationship between periodontitis and heart failure using the Third National Health and Nutrition Examination Survey (NHANES III). Methods: Participants who had received a periodontal examination were included and investigated for the occurrence of heart failure. The included participants were divided into no/mild periodontitis and moderate/severe periodontitis groups according to their periodontal status. Weighted prevalence of heart failure was calculated, and weighted logistic regressions models were used to explore the association between periodontitis and heart failure. Possible influencing factors were then explored through subgroup analysis. Results: Compared with that of the no/mild periodontitis group, the incidence of heart failure in participants with moderate/severe periodontitis was 5.72 times higher (95% CI: 3.76-8.72, p < 0.001). After adjusting for gender, age, race, body mass index, poverty income ratio, education, marital status, smoking status, drinking status, hypertension, diabetes, stroke, and asthma, the results showed that the incidence of heart failure in the moderate/severe group was 3.03 times higher (95% CI: 1.29-7.13, p = 0.012). Subgroup analysis showed that criteria, namely, male, 40-60 years old, non-Hispanic white, body mass index >30, poverty income ratio ≥1, not more than 12 years of education, currently drinking, stroke but no diabetes, or asthma supported moderate/severe periodontitis as a risk factor for heart failure ( p < 0.05). Conclusion: According to data from this nationally representative sample from the United States, periodontitis is associated with an increased risk of heart failure., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Yan, Mao, Li, Chen, Yu, Xie, Huang, Leng and Xiong.)
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- 2022
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14. Alterations and Correlations of Gut Microbiota and Fecal Metabolome Characteristics in Experimental Periodontitis Rats.
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Wu L, Han J, Nie JY, Deng T, Li C, Fang C, Xie WZ, Wang SY, and Zeng XT
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Objectives: Periodontitis affects the progression of many diseases, while its detailed mechanism remains unclear. This study hopes to provide new ideas for exploring its mechanism by analyzing the gut microbiota and fecal metabolic characteristics of experimental periodontitis rats., Methods: A total of 10 rats were randomly divided into ligature-induced experimental periodontitis (EP) group and healthy control group. After 4 weeks of the experiment, the feces of all rats were collected for sequencing through 16S ribosomal DNA (rDNA) sequencing technology and liquid chromatography-mass spectrometry (LC-MS)., Results: 16S rDNA sequencing results showed that the β-diversity of gut microbiota was significantly different between the EP and control group, and the levels of dominant genera were different. Compared with the control group, Ruminococcus , Escherichia , and Roseburia were significantly enriched in EP, and Coprococcus , Turicibacter , Lachnospira were significantly decreased. Correlation analysis showed that Roseburia exhibited the highest correlation within the genus. Of 3,488 qualitative metabolites, 164 metabolites were upregulated and 362 metabolites were downregulated in EP. Enrichment analysis showed that periodontitis significantly changed 45 positive/negative ion metabolic pathways. Five KEGG pathways, protein digestion and absorption, tyrosine metabolism, glycolysis/gluconeogenesis, niacin and nicotinamide metabolism, and oxidative phosphorylation, are enriched in both the microbiome and metabolome. Correlation analysis showed that the genera with significant differences in periodontitis were usually significantly correlated with more metabolites, such as Roseburia , Lachnospira , Escherichia , Turicibacter , and Ruminococcus . The genera with the same changing trend tended to have a similar correlation with some certain metabolites. In addition, vitamin D2 and protoporphyrin IX have the most significant correlations with microorganisms., Conclusion: Our study reveals that periodontitis alters gut microbiota and fecal metabolites. The correlation analysis of microbiota and metabolome provides a deeper understanding of periodontitis, and also provides a direction for the study of periodontitis affecting other diseases., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Wu, Han, Nie, Deng, Li, Fang, Xie, Wang and Zeng.)
- Published
- 2022
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15. The Predictive Value of MAP2K1/2 Mutations on Efficiency of Immunotherapy in Melanoma.
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Ye T, Zhang JY, Liu XY, Zhou YH, Yuan SY, Yang MM, Xie WZ, Gao C, Chen YX, Huang ML, Ye CZ, and Chen J
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- Humans, Mutation, Progression-Free Survival, Survival Rate, Immunotherapy, MAP Kinase Kinase 1 genetics, MAP Kinase Kinase 1 immunology, MAP Kinase Kinase 2 genetics, MAP Kinase Kinase 2 immunology, Melanoma genetics, Melanoma immunology, Melanoma mortality, Melanoma therapy
- Abstract
Background: MAP2K1/2 genes are mutated in approximately 8% of melanoma patients; however, the impact of MAP2K1/2 gene alterations on the efficiency of immunotherapy has not been clarified. This study focused on the correlation between MAP2K1/2 gene mutations and the treatment response., Methods: Six metastatic melanoma clinical cohorts treated with immune checkpoint inhibitors [anti-cytotoxic T lymphocyte antigen-4 (CTLA-4) or anti-programmed cell death-1 (PD-1)] were recruited in this study. RNA expression profiling results from each of these six cohorts and the Cancer Genome Atlas (TCGA) melanoma cohort were analysed to explore the mechanism related to immune activation., Results: Compared to patients with wild-type MAP2K1/2 , those with MAP2K1/2 mutations in an independent anti-CTLA-4-treated cohort had higher objective response rates, longer progression-free survival, and longer overall survival (OS). These findings were further validated in a pooled anti-CTLA-4-treated cohort in terms of the OS. However, there was no correlation between MAP2K1/2 mutations and OS in the anti-PD-1-treated cohort. Subgroup Cox regression analysis suggested that patients with MAP2K1/2 mutations received fewer benefits from anti-PD-1 monotherapy than from anti-CTLA-4 treatment. Furthermore, transcriptome profiling analysis revealed that melanoma tumours with MAP2K mutation was enriched in CD8
+ T cells, B cells, and neutrophil cells, also expressed high levels of CD33 and IL10, implying a potential mechanism underlying the benefit of melanoma patients with MAP2K1/2 mutations from anti-CTLA-4 treatment., Conclusions: MAP2K1/2 mutations were identified as an independent predictive factor for anti-CTLA-4 therapy in melanoma patients. Anti-CTLA-4 treatment might be more effective than anti-PD-1 therapy for patients with MAP2K1/2- mutated melanoma., Competing Interests: X-YL, M-MY, W-ZX, CG, Y-XC, and M-LH were employed by 3D Medicines Inc. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Ye, Zhang, Liu, Zhou, Yuan, Yang, Xie, Gao, Chen, Huang, Ye and Chen.)- Published
- 2022
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16. The Status and Influencing Factors of Cyberchondria During the COVID-19 Epidemic. A Cross-Sectional Study in Nanyang City of China.
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Peng XQ, Chen Y, Zhang YC, Liu F, He HY, Luo T, Dai PP, Xie WZ, and Luo AJ
- Abstract
Cyberchondria is considered "the anxiety-amplifying effects of online health-related searches." During the COVID-19 pandemic, people are likely to search health-related information online for reassurance because of fear and related physical symptoms, while cyberchondria may be triggered due to the escalation of health anxiety, different online seeking behavior preference, information overload, and insufficient e-health literacy. This study aimed to investigate the status and influencing factors of cyberchondria in residents in China during the epidemic period of COVID-19. The participants were 674 community residents of Nanyang city surveyed from February 1 to 15, 2020. We administered online measures, including the Chinese Short Form of the Cyberchondria Severity Scale (C-CSS-12), Short Health Anxiety Inventory (SHAI), eHealth Literacy Scale (eHEALS), Patient Health Questionnaire-15 (PHQ-15), and COVID-19-related online information seeking behavior questionnaire. In our study, the average C-CSS-12 total score of residents was 30.65 ± 11.53 during the virus epidemic; 25% of participants scored 22 or below, 50% scored 23 to 38, and 21.9% scored 39 to 60. The SHAI total score (β = 0.598 > 0, P < 0.001), the use of general search engines (β = 1.867 > 0, P = 0.039), and searching for information on how to diagnose COVID-19 (β = 2.280 > 0, P = 0.020) were independent risk factors for cyberchondria, while searching lasting less than 10 min each (β = -2.992 < 0, P = 0.048), the use of traditional media digital platforms (β = -1.650 < 0, P = 0.024) and professional medical communication platforms (β = -4.189 < 0, P = 0.007) were independent protective factors. Our findings showed that nearly a quarter of the participants scored 39 or higher on the C-CSS-12 in Nanyang city during the pandemic, which should be taken seriously. Health anxiety and COVID-19-related online information seeking behavior including online duration, topics and choice on different information channels were important influencing factors of cyberchondria. These findings have implications for further research and clinical practice on cyberchondria in China., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Peng, Chen, Zhang, Liu, He, Luo, Dai, Xie and Luo.)
- Published
- 2021
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17. High-quality reference genome sequences of two coconut cultivars provide insights into evolution of monocot chromosomes and differentiation of fiber content and plant height.
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Wang S, Xiao Y, Zhou ZW, Yuan J, Guo H, Yang Z, Yang J, Sun P, Sun L, Deng Y, Xie WZ, Song JM, Qamar MTU, Xia W, Liu R, Gong S, Wang Y, Wang F, Liu X, Fernie AR, Wang X, Fan H, Chen LL, and Luo J
- Subjects
- Biosynthetic Pathways, Cocos anatomy & histology, Cocos metabolism, Genomics, Karyotype, Chromosomes, Plant, Cocos genetics, Evolution, Molecular, Genome, Plant
- Abstract
Background: Coconut is an important tropical oil and fruit crop whose evolutionary position renders it a fantastic species for the investigation of the evolution of monocot chromosomes and the subsequent differentiation of ancient plants., Results: Here, we report the assembly and annotation of reference-grade genomes of Cn. tall and Cn. dwarf, whose genome sizes are 2.40 Gb and 2.39 Gb, respectively. The comparative analysis reveals that the two coconut subspecies diverge about 2-8 Mya while the conserved Arecaceae-specific whole-genome duplication (ω WGD) occurs approximately 47-53 Mya. It additionally allows us to reconstruct the ancestral karyotypes of the ten ancient monocot chromosomes and the evolutionary trajectories of the 16 modern coconut chromosomes. Fiber synthesis genes in Cn. tall, related to lignin and cellulose synthesis, are found at a higher copy number and expression level than dwarf coconuts. Integrated multi-omics analysis reveals that the difference in coconut plant height is the result of altered gibberellin metabolism, with both the GA20ox copy number and a single-nucleotide change in the promoter together leading to the difference in plant height between Cn. tall and Cn. dwarf., Conclusion: We provide high-quality coconut genomes and reveal the genetic basis of trait differences between two coconuts through multi-omics analysis. We also reveal that the selection of plant height has been targeted for the same gene for millions of years, not only in natural selection of ancient plant as illustrated in coconut, but also for artificial selection in cultivated crops such as rice and maize., (© 2021. The Author(s).)
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- 2021
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18. Letter to the Editor: Risk Stratification in Patients With Child-Pugh B Cirrhosis and Acute Variceal Bleeding.
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Shi YF and Xie WZ
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- Gastrointestinal Hemorrhage etiology, Humans, Liver Cirrhosis complications, Risk Assessment, Esophageal and Gastric Varices etiology, Portasystemic Shunt, Transjugular Intrahepatic
- Published
- 2021
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19. CRISPR-Cereal: a guide RNA design tool integrating regulome and genomic variation for wheat, maize and rice.
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He C, Liu H, Chen D, Xie WZ, Wang M, Li Y, Gong X, Yan W, and Chen LL
- Subjects
- CRISPR-Cas Systems genetics, Clustered Regularly Interspaced Short Palindromic Repeats genetics, Edible Grain genetics, Gene Editing, Genomics, Triticum genetics, Zea mays genetics, Oryza genetics, RNA, Guide, CRISPR-Cas Systems
- Published
- 2021
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20. Synchronous diagnosis and treatment of acute myeloid leukemia and chronic lymphocytic leukemia: Two case reports.
- Author
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Chen RR, Zhu LX, Wang LL, Li XY, Sun JN, Xie MX, Zhu JJ, Zhou, Li JH, Huang X, Xie WZ, and Ye XJ
- Abstract
Background: The concurrence of acute myeloid leukemia (AML) and chronic lymphocytic leukemia (CLL) is rare. Previous reports of such cases have focused mainly on clinical diagnosis and characteristics, so the mechanism remains unclear, and therapy options have been poorly explored., Case Summary: Here, we report two cases of synchronous AML and CLL. Flow cytometry revealed two distinct abnormal cell populations (myeloblasts and lymphoid cells) according to scatter characteristics. CD5-positive B cell lymphoma with myeloid leukemia invasion was observed on lymph node biopsy. Chemotherapy regimens indicated for both AML and CLL were used in our patients, and our patients achieved complete response after chemotherapy. Next-generation sequencing of 88 genes was performed., Conclusion: We conclude that early mutation and dysregulation at the hematopoietic stem cell stage and the accumulation of multiple rearrangements may cause the concurrence of CLL and AML. The treatment of infection and combination therapy aimed at the CLL component are significant in the management of patients with concurrent CLL and AML., Competing Interests: Conflict-of-interest statement: The authors declare that they have no conflict of interest., (©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.)
- Published
- 2021
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21. Two gap-free reference genomes and a global view of the centromere architecture in rice.
- Author
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Song JM, Xie WZ, Wang S, Guo YX, Koo DH, Kudrna D, Gong C, Huang Y, Feng JW, Zhang W, Zhou Y, Zuccolo A, Long E, Lee S, Talag J, Zhou R, Zhu XT, Yuan D, Udall J, Xie W, Wing RA, Zhang Q, Poland J, Zhang J, and Chen LL
- Subjects
- Molecular Sequence Annotation, Species Specificity, Whole Genome Sequencing, Centromere, Chromosomes, Plant, Genome, Plant, Oryza genetics
- Abstract
Rice (Oryza sativa), a major staple throughout the world and a model system for plant genomics and breeding, was the first crop genome sequenced almost two decades ago. However, reference genomes for all higher organisms to date contain gaps and missing sequences. Here, we report the assembly and analysis of gap-free reference genome sequences for two elite O. sativa xian/indica rice varieties, Zhenshan 97 and Minghui 63, which are being used as a model system for studying heterosis and yield. Gap-free reference genomes provide the opportunity for a global view of the structure and function of centromeres. We show that all rice centromeric regions share conserved centromere-specific satellite motifs with different copy numbers and structures. In addition, the similarity of CentO repeats in the same chromosome is higher than across chromosomes, supporting a model of local expansion and homogenization. Both genomes have over 395 non-TE genes located in centromere regions, of which ∼41% are actively transcribed. Two large structural variants at the end of chromosome 11 affect the copy number of resistance genes between the two genomes. The availability of the two gap-free genomes lays a solid foundation for further understanding genome structure and function in plants and breeding climate-resilient varieties., (Copyright © 2021 The Author. Published by Elsevier Inc. All rights reserved.)
- Published
- 2021
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22. A novel seven‑gene panel predicts prognosis of head and neck squamous cell carcinoma treated with platinum‑based radio(chemo)therapy.
- Author
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Shi YF and Xie WZ
- Subjects
- Chemoradiotherapy, Humans, Prognosis, Squamous Cell Carcinoma of Head and Neck genetics, Squamous Cell Carcinoma of Head and Neck therapy, Head and Neck Neoplasms therapy, Platinum
- Published
- 2021
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23. Letter to the editor "Identification of MSC-AS1, a novel lncRNA for the diagnosis of laryngeal cancer".
- Author
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Shi YF and Xie WZ
- Subjects
- Gene Expression Regulation, Neoplastic, Humans, Laryngeal Neoplasms diagnosis, Laryngeal Neoplasms genetics, MicroRNAs, RNA, Long Noncoding genetics
- Published
- 2021
- Full Text
- View/download PDF
24. Case Report: The First Report of NUP214-ABL1 Fusion Gene in Acute Myeloid Leukemia Patient Detected by Next-Generation Sequencing.
- Author
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Wang HP, He JJ, Zhu QY, Wang L, Li JH, Huang JS, Xie WZ, Zhu HH, and Jin J
- Abstract
The NUP214-ABL1 fusion gene is a constitutively active tyrosine kinase that can be detected in 6% of T-cell acute lymphoblastic leukemia (T-ALL) patients, and it can also be found in B-cell acute lymphoblastic leukaemia (B-ALL). However the NUP214-ABL1 fusion in acute myeloid leukemia (AML) has not yet been reported. Up to now, the sensitivity of NUP214-ABL1 -positive patients to tyrosine kinase inhibitor (TKI) is still controversial. Here we report the first case of an AML patient carrying NUP214-ABL1 fusion gene. The conventional AML chemotherapy regimen for the patient was successful. Identification of additional AML patients with NUP214-ABL1 fusion gene will provide treatment experience and prognostic evaluation., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Wang, He, Zhu, Wang, Li, Huang, Xie, Zhu and Jin.)
- Published
- 2021
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25. Coagulation profile in newly diagnosed T-cell acute lymphoblastic leukemia.
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Li XY, Zhou YL, Zhang Y, Huang X, Li JH, Wang HP, Zhou, Li L, Zhu LX, Xie MX, Huang XB, Xie WZ, Lou YJ, Meng HT, Yu WJ, Tong HY, Jin J, Ye XJ, and Zhu HH
- Subjects
- Blood Coagulation Tests, Humans, Prognosis, T-Lymphocytes, Precursor Cell Lymphoblastic Leukemia-Lymphoma
- Published
- 2021
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- View/download PDF
26. Prognostic value of the NLR combined with CIP2A in the serum of patients with colorectal cancer.
- Author
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Chen W, Yi HJ, Chen XQ, Xie WZ, Tang XK, Ye JW, Peng X, Zhang Y, Liang JL, and Huang MJ
- Subjects
- Humans, Kaplan-Meier Estimate, Neutrophils, Prognosis, Retrospective Studies, Colorectal Neoplasms diagnosis, Lymphocytes
- Abstract
Objective: This study aimed to investigate the prognostic value of CIP2A (cancerous inhibitor of protein phosphatase 2A) and the NLR (neutrophil-lymphocyte ratio) in the serum of patients with CRC (colorectal cancer) after resection., Methods: The clinicopathological data of 61 patients who underwent resection between January 2012 and December 2013 were collected. The NLR and CIP2A were divided into low score groups (0) and high score groups (1) with 2.03 and 6.07 as the optimal cut-off value according to the receiver operating characteristic (ROC) curve analysis. To identify the COCN (combination of CIP2A and the NLR) score, we added CIP2A and NLR points together and categorized CRC patients into three groups. Kaplan-Meier curves were used to identify the overall survival (OS) rates of the different groups. Finally, a ROC curve was plotted to evaluate the prognostic efficacy of COCN., Results: The CIP2A was associated with location (P = 0.046) and CEA (P = 0.037) in patients with CRC. Kaplan-Meier survival curves showed that the 5-year OS of patients with low level of serum CIP2A was better than that of high level. The 5-year OS of the patients in the low NLR group was better than that of those in the high NLR group. The COCN score was associated with CEA (P < 0.001) and CA19-9 (P = 0.001). The 5-year OS of the patients in the COCN 0 group was highest, followed by that of those in the COCN 1 and COCN 2 groups. Age, N stage and M stage were factors associated with 5-year OS according to the univariate and multivariate analyses (P < 0.05). The area under the curve (AUC) for COCN was largest, indicating that COCN has better prognostic power than CIP2A or the NLR alone., Conclusion: COCN could be used as a better prognostic biomarker for CRC than the NLR or CIP2A alone.
- Published
- 2021
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27. A potential therapeutic strategy for prostatic disease by targeting the oral microbiome.
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Fang C, Wu L, Zhu C, Xie WZ, Hu H, and Zeng XT
- Subjects
- Humans, Male, Microbiota, Prostatic Diseases, Prostatic Neoplasms
- Abstract
Nowadays, human microbiome research is rapidly growing and emerging evidence has witnessed the critical role that oral microbiome plays in the process of human health and disease. Oral microbial dysbiosis has been confirmed as a contributory cause for diseases in multiple body systems, ranging from the oral cavity to the gastrointestinal, endocrine, immune, cardiovascular, and even nervous system. As research progressing, oral microbiome-based diagnosis and therapy are proposed and applied, which may represent potential drug targets in systemic diseases. Recent studies have uncovered the possible association between periodontal disease and prostatic disease, suggesting new prevention and therapeutic treatment for the disease by targeting periodontal pathogens. Thus, we performed this review to first explore the association between the oral microbiome and prostatic disease, according to current knowledge based on published articles, and then mainly focus on the underlying molecular and cellular mechanisms and the potential prevention and treatment derived from these mechanistic studies., (© 2020 The Authors. Medicinal Research Reviews published by Wiley Periodicals LLC.)
- Published
- 2021
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28. Secular trends in severe periodontitis incidence, prevalence and disability-adjusted life years in five Asian countries: A comparative study from 1990 to 2017.
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Luo LS, Luan HH, Wu L, Shi YJ, Wang YB, Huang Q, Xie WZ, and Zeng XT
- Subjects
- Adult, Aged, China epidemiology, Humans, Incidence, Japan epidemiology, Middle Aged, Prevalence, Quality-Adjusted Life Years, Republic of Korea, Young Adult, Periodontitis epidemiology
- Abstract
Aims: To investigate secular trends in severe periodontitis incidence, prevalence and disability-adjusted life year (DALY) rates in China, India, Japan, South Korea and Thailand from 1990 to 2017., Materials and Methods: Data were obtained from the "Global Burden of Disease Study" 2017. The annual percentage change and average annual percentage change were calculated using Joinpoint regression analysis. The independent age, period and cohort effects were estimated by age-period-cohort analysis., Results: From 1990 to 2017, the overall age-standardized incidence, prevalence and DALY rates increased in China, Japan and India, while decreasing in South Korea and Thailand. The highest incidence, prevalence and DALY rates were in India. By APC analysis, the age effect presented increase in 20-59 years in China, Japan and South Korea, 20-54 years in India and 20-64 years in Thailand; the period effect showed progressive increases in five countries, with the most significant increase shown in China; the cohort effect showed monotonic decreases with birth cohort in five countries., Conclusions: Severe periodontitis poses a serious burden in Asian countries, especially China and India. We suggest raising people's awareness of periodontal health and providing professional interventions in these countries, especially for high-risk groups, such as younger people aged ≤65 years., (© 2021 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
- Published
- 2021
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29. Rap1GAP Mediates Angiotensin II-Induced Cardiomyocyte Hypertrophy by Inhibiting Autophagy and Increasing Oxidative Stress.
- Author
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Gao Y, Zhao D, Xie WZ, Meng T, Xu C, Liu Y, Zhang P, Bi X, and Zhao Z
- Subjects
- Angiotensin II, Animals, Autophagy, Cardiomegaly, Oxidative Stress, Rats, Rats, Sprague-Dawley, Rats, Wistar, GTPase-Activating Proteins metabolism
- Abstract
Abnormal autophagy and oxidative stress contribute to angiotensin II- (Ang II-) induced cardiac hypertrophy and heart failure. We previously showed that Ang II increased Rap1GAP gene expression in cardiomyocytes associated with hypertrophy and autophagy disorders. Using real-time PCR and Western blot, we found that Rap1GAP expression was increased in the heart of Sprague Dawley (SD) rats infused by Ang II compared with saline infusion and in Ang II vs. vehicle-treated rat neonatal cardiomyocytes. Overexpression of Rap1GAP in cultured cardiomyocytes exacerbated Ang II-induced cardiomyocyte hypertrophy, reactive oxygen species (ROS) generation, and cell apoptosis and inhibited autophagy. The increased oxidative stress caused by Rap1GAP overexpression was inhibited by the treatment of autophagy agonists. Knockdown of Rap1GAP by siRNA markedly attenuated Ang II-induced cardiomyocyte hypertrophy and oxidative stress and enhanced autophagy. The AMPK/AKT/mTOR signaling pathway was inhibited by overexpression of Rap1GAP and activated by the knockdown of Rap1GAP. These results show that Rap1GAP-mediated pathway might be a new mechanism of Ang II-induced cardiomyocyte hypertrophy, which could be a potential target for the future treatment of cardiac hypertrophy and heart failure., Competing Interests: The authors declare that they have no conflict of interest., (Copyright © 2021 Yan Gao et al.)
- Published
- 2021
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30. BnPIR: Brassica napus pan-genome information resource for 1689 accessions.
- Author
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Song JM, Liu DX, Xie WZ, Yang Z, Guo L, Liu K, Yang QY, and Chen LL
- Subjects
- Genome, Plant genetics, Brassica napus genetics, Brassica rapa genetics
- Published
- 2021
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31. Indole alkaloids from Ophiorrhiza cantoniensis with immunosuppressive activity.
- Author
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Xie WZ, Yang HX, Li ZH, Feng T, and Liu JK
- Subjects
- Animals, B-Lymphocytes drug effects, Cell Proliferation drug effects, Cells, Cultured, China, Female, Immunosuppressive Agents isolation & purification, Indole Alkaloids isolation & purification, Mice, Inbred BALB C, Molecular Structure, Phytochemicals isolation & purification, Phytochemicals pharmacology, Spleen cytology, T-Lymphocytes drug effects, Mice, Immunosuppressive Agents pharmacology, Indole Alkaloids pharmacology, Rubiaceae chemistry
- Abstract
Three new indole alkaloids, ophiorrhines C-D (1-3), together with one known analogue, have been isolated from the plant of Ophiorrhiza cantoniensis Hace. The structures of the new alkaloids with the absolute configurations were elucidated by means of spectroscopic methods, electronic circular dichroism (ECD) and calculated nuclear magnetic resonance (NMR) with DP4+ analysis. Compounds 1 and 2 exhibited certain activity to Con-A induced T cell proliferation, and 1 exhibited good inhibition on LPS-induced B cell proliferation with an IC
50 value of 8.7 μM., (Copyright © 2020 Elsevier B.V. All rights reserved.)- Published
- 2021
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32. Qualitative Study on the Influencing Factors and Countermeasures Against Job Burnout Among Organ Donation Coordinators.
- Author
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Luo AJ, Xu ZH, Cai PP, He HY, Mao P, and Xie WZ
- Subjects
- China epidemiology, Humans, Qualitative Research, Burnout, Professional epidemiology, Organ Transplantation, Tissue and Organ Procurement
- Abstract
Background: Most organ donation coordinators suffer varying degrees of anxiety, depression and poor sleep caused by constant work pressure, and their professional identity is only at a medium level. All of this leads to a great risk of job burnout. Objective: To identify the influencing factors of and effective countermeasures against job burnout among organ donation coordinators. Method: Semistructured interviews were used for data collection. In-person or phone interviews were conducted from December 2017 to June 2018. Results: 12 organ donation coordinators who came from 7 different provinces and cities in China were interviewed. The interview data were sorted, and relevant topics were extracted and summarized in terms of two aspects, namely, factors that influenced job burnout in organ donation coordinators and effective countermeasures for dealing with job burnout. Conclusion: Factors influencing job burnout among organ donation coordinators include personal factors, job responsibilities, salary and benefit factors, and donor family factors. Measures to help organ donation coordinators effectively address burnout include self-regulation, social support, and positive events., (Copyright © 2020 Luo, Xu, Cai, He, Mao and Xie.)
- Published
- 2020
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33. Pseudo-atomic-scale metals well-dispersed on nano-carbons as ultra-low metal loading oxygen-evolving electrocatalysts.
- Author
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Huang JF and Xie WZ
- Abstract
Solving challenges for the scaling-up, high metal loadings and low turnover frequency (TOF, defined as mol O2 per mol metal per second), of FeNi catalysts in water electrolysis, we report the first discovery of pH tunable tannic acid single molecular layer formed on nano-sized carbons (NCs), which promotes the gram-production of pseudo-atomic-scale FeNi oxyhydroxide nanoclusters well-dispersed on NCs. It results in ultra-low metal loading (0.42 μg cm
-2 ) and remarkably large TOF of 14.03 s-1 for the oxygen evolution reaction, which is three orders of magnitude higher than that of state-of-the-art FeNi catalysts. A "volcano"-shaped activity trend in specific activity and TOF was found to depend on the Fe content in FeNi oxyhydroxide. The micro-morphologies from the atomic-level exposure of active sites and surface spectra analyses confirm the model of synergism between Ni and Fe centers., Competing Interests: There are no conflicts to declare., (This journal is © The Royal Society of Chemistry.)- Published
- 2020
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34. [CD7 expression and its prognostic significance in acute myeloid leukemia patients with wild-type or mutant CEBPA].
- Author
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Zhu MY, Zhu Y, Chen RR, Zhu LX, Zhu JJ, Li XY, Zhou D, Yang XD, Zheng YL, Xie MX, Sun JN, Huang XB, Li L, Xie WZ, and Ye XJ
- Subjects
- Disease-Free Survival, Humans, Mutation, Prognosis, Retrospective Studies, CCAAT-Enhancer-Binding Proteins genetics, Leukemia, Myeloid, Acute genetics
- Abstract
Objective: To analyze the prognostic value of CD7 expression in newly diagnosed acute myeloid leukemia (AML) patients, and to further explore the correlation between CD7 expression and CEBPA mutation, and to clarify the prognostic value of CD7(+) in AML patients with wild-type (WT) or mutant-type (MT) CEBPA. Methods: The clinical data of 298 newly diagnosed non-M(3) AML patients between January 2010 and December 2016 were analyzed retrospectively. The clinical characteristics and prognosis of CD7(+) and CD7(-) patients were respectively compared in all patients, and in patients with WT and MT CEBPA. The relationship between CD7 expression and CEBPA mutation was determined by chi-square, and the effects of CEBPA mutation on survival and prognosis in CD7(+) group by Kaplan-Meier method. Results: In CD7(+) group, the frequencies of CEBPA mutation were 10.1% (single site) and 33.9% (double site) , significantly higher than those of the CD7(-) group (5.3% and 4.2%) ( P =0.000) . Subgroup prognostic analysis showed a lower CR rate ( P =0.001) and a higher RR ( P =0.023) in CD7(+) group comparing to those of CD7(-) group in AML patients with wild type CEBPA. There were no statistical difference between CD7(+) group and CD7(-) group in overall survival (OS) and disease free survival ( P >0.05) , while in the CEBPA mutant group the CD7(+) group has higher OS ( P =0.019) and DFS ( P =0.010) . Based on the CD7 expression and CEBPA mutation, 298 cases were divided into 3 subgroups, named as CD7(+)-CEBPA MT group, CD7(-) and CD7(+)-CEBPA WT group. The 3-year OS of the 3 groups were 80.2%, 48.0% and 30.6%, respectively ( P <0.001) , and the 3-year DFS were 74.1%, 37.4% and 22.2%, respectively ( P <0.001) . Conclusion: The CEBPA mutation rate was higher in CD7(+) AML patients then that of CD7(-) patients. CD7 expression has opposite prognostic significance in AML patients carrying the wild-type or mutant-type CEBPA. Based on CD7 expression and CEBPA mutation, a new risk stratification model can be established, which is helpful to guide the clinical individualized treatment for AML patients.
- Published
- 2020
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35. Eight high-quality genomes reveal pan-genome architecture and ecotype differentiation of Brassica napus.
- Author
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Song JM, Guan Z, Hu J, Guo C, Yang Z, Wang S, Liu D, Wang B, Lu S, Zhou R, Xie WZ, Cheng Y, Zhang Y, Liu K, Yang QY, Chen LL, and Guo L
- Subjects
- Chromosome Mapping, Flowers genetics, Genome-Wide Association Study, Polymorphism, Single Nucleotide, Seeds genetics, Brassica napus genetics, Ecotype, Genome, Plant
- Abstract
Rapeseed (Brassica napus) is the second most important oilseed crop in the world but the genetic diversity underlying its massive phenotypic variations remains largely unexplored. Here, we report the sequencing, de novo assembly and annotation of eight B. napus accessions. Using pan-genome comparative analysis, millions of small variations and 77.2-149.6 megabase presence and absence variations (PAVs) were identified. More than 9.4% of the genes contained large-effect mutations or structural variations. PAV-based genome-wide association study (PAV-GWAS) directly identified causal structural variations for silique length, seed weight and flowering time in a nested association mapping population with ZS11 (reference line) as the donor, which were not detected by single-nucleotide polymorphisms-based GWAS (SNP-GWAS), demonstrating that PAV-GWAS was complementary to SNP-GWAS in identifying associations to traits. Further analysis showed that PAVs in three FLOWERING LOCUS C genes were closely related to flowering time and ecotype differentiation. This study provides resources to support a better understanding of the genome architecture and acceleration of the genetic improvement of B. napus.
- Published
- 2020
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36. Intercomparison of dose enhancement ratio and secondary electron spectra for gold nanoparticles irradiated by X-rays calculated using multiple Monte Carlo simulation codes.
- Author
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Li WB, Belchior A, Beuve M, Chen YZ, Di Maria S, Friedland W, Gervais B, Heide B, Hocine N, Ipatov A, Klapproth AP, Li CY, Li JL, Multhoff G, Poignant F, Qiu R, Rabus H, Rudek B, Schuemann J, Stangl S, Testa E, Villagrasa C, Xie WZ, and Zhang YB
- Subjects
- Animals, Computer Simulation, Electrons, Humans, Imaging, Three-Dimensional, In Vitro Techniques, Mice, Monte Carlo Method, Neoplasms diagnostic imaging, Quality Control, Radiometry, Reproducibility of Results, Water, X-Rays, Gold chemistry, Metal Nanoparticles chemistry, Radiotherapy methods
- Abstract
Purpose: Targeted radiation therapy has seen an increased interest in the past decade. In vitro and in vivo experiments showed enhanced radiation doses due to gold nanoparticles (GNPs) to tumors in mice and demonstrated a high potential for clinical application. However, finding a functionalized molecular formulation for actively targeting GNPs in tumor cells is challenging. Furthermore, the enhanced energy deposition by secondary electrons around GNPs, particularly by short-ranged Auger electrons is difficult to measure. Computational models, such as Monte Carlo (MC) radiation transport codes, have been used to estimate the physical quantities and effects of GNPs. However, as these codes differ from one to another, the reliability of physical and dosimetric quantities needs to be established at cellular and molecular levels, so that the subsequent biological effects can be assessed quantitatively., Methods: In this work, irradiation of single GNPs of 50 nm and 100 nm diameter by X-ray spectra generated by 50 and 100 peak kilovoltages was simulated for a defined geometry setup, by applying multiple MC codes in the EURADOS framework., Results: The mean dose enhancement ratio of the first 10 nm-thick water shell around a 100 nm GNP ranges from 400 for 100 kVp X-rays to 600 for 50 kVp X-rays with large uncertainty factors up to 2.3., Conclusions: It is concluded that the absolute dose enhancement effects have large uncertainties and need an inter-code intercomparison for a high quality assurance; relative properties may be a better measure until more experimental data is available to constrain the models., (Copyright © 2019 Associazione Italiana di Fisica Medica. All rights reserved.)
- Published
- 2020
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37. [Effect of Serum Free Light Chain on Renal Function and Prognosis in Patients with Newly Diagnosed Multiple Myeloma].
- Author
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Chen XD, Luo XF, Zu YP, Ye H, Li LL, Chen QL, Xie WZ, Yang T, Hu JD, and Wei LX
- Subjects
- Humans, Immunoglobulin Light Chains, Prognosis, Retrospective Studies, Uric Acid, Multiple Myeloma
- Abstract
Objective: To analyze the effect of serum free light chain (sFLC) on renal function and prognosis in patients with newly diagnosed multiple myeloma (MM)., Methods: The clinical data of 70 newly diagnosed MM patients who received sFLC examination in Fujian Medical University Union Hospital were retrospectively analyzed from April 2012 to November 2016. Univariate analysis was used to analyze the risk factors that associated with renal impairment (RI) and prognosis. Logistic regression and Kaplan-Meier analyze were used to analyze the roles of sFLC in RI and the prognosis., Results: Out of the 70 patients, 20 patients had RI at the initial diagnosis. Compared to normal renal function group, RI group had lower level of hemoglobin, elevated levels of serum uric acid, corrected calcium, serum creatinine, serum β2 microglobulin, and involved sFLC, higher proportion of patients with ISS stage III, involved sFLC≥500 mg/L, hemodialysis (all P<0.05). Multivariate logistic regression analysis showed that serum uric acid≥430 μmol/L, ISS stage III and a involved sFLC≥500 mg/L were all the independent risk factors for RI in patients with newly diagnosed MM patients (all P<0.05). Receiver operating characteristic (ROC) curves analysis showed that the involved sFLC was 705.0 mg/L, which was a best cut-off value area under curve (AUC) for prediting RI in patients with MM was 0.727 (P=0.003), sensitivity was 65.0% and specificity was 82.0%). After a median follow-up period of 31 (1-84) months, the median overall survival (OS) of patients with involved sFLC≥500mg/L and involved sFLC<500 mg/L were 52.0 and 27.0 months, respectively, there was no statistically significant difference (P=0.137). There was also no statistically significant difference in median OS between the high sFLC ratio group (κ/λ>32 or <0.03) and the low sFLC ratio group (0.03≤κ/λ≤32) (27 months vs 40 months, P=0.436)., Conclusion: The involved sFLC in the RI group is significantly higher than that in the normal renal function group in newly diagnosed MM patients. Serum uric acid≥430 μmol/L, ISS stage III and involved sFLC≥500 mg/L are the independent risk factors for RI. Monitoring sFLC in newly diagnosed MM patients is helpful to the prediction of RI, and the involved sFLC level or sFLC ratio may not affect the prognosis of newly diagnosed MM patients.
- Published
- 2019
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38. Ivabradine Improves Cardiac Function and Increases Exercise Capacity in Patients with Chronic Heart Failure.
- Author
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Pei H, Miao W, Xie WZ, Wang W, Zhao D, Su GH, and Zhao Z
- Subjects
- Cardiovascular Agents therapeutic use, Heart Failure physiopathology, Humans, Stroke Volume drug effects, Ventricular Function, Left drug effects, Exercise Tolerance drug effects, Heart Failure drug therapy, Ivabradine therapeutic use, Stroke Volume physiology, Ventricular Function, Left physiology
- Abstract
To systematically review and conduct a meta-analysis of the ivabradine-induced improvement in cardiopulmonary function, exercise capacity, and primary composite endpoints in patients with chronic heart failure (CHF).This study was a systematic review and meta-analysis.Databases, including PubMed, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), and Clinical Trials and European Union Clinical Trials, were searched for randomized placebo-controlled trials. The efficacy and safety of ivabradine treatment in patients with CHF were assessed and compared to those of the standard anti-heart failure treatment. Review Manager 5.3 software was used to analyze the relative risk (RR) for dichotomous data and the mean difference (MD) for continuous data.In total, 22 studies with 24,562 patients were included. Cardiopulmonary function analysis showed that treatment with added ivabradine reduced the heart rate (MD = -17.30, 95% confidence interval (CI): 19.52--15.08, P < 0.00001), significantly increased the left ventricular ejection fraction (LVEF) (MD = 3.90, 95% CI: 0.40-7.40, P < 0.0001), and led to a better New York Heart Association (NYHA) classification. Ivabradine significantly reduced the minute ventilation/carbon dioxide production (VE/VCO
2 ) (MD = -2.68, 95% CI: -4.81--0.55, P = 0.01) and improved the peak VO2 (MD = 2.80, 95% CI: 1.05-4.55, P = 0.002) and the exercise capacity, including the exercise duration with a submaximal load (MD = 7.82, 95% CI: -2.57--18.21, P < 0.00001) and the 6-minute walk distance. The RR of cardiovascular death or worsening heart failure was significantly decreased (RR = 0.93, 95% CI: 0.87--0.98, P = 0.01) in the patients treated with ivabradine. Additionally, the RRs of heart failure and hospitalization also decreased (RR = 0.91, 95% CI: 0.85--0.97, P = 0.006; RR = 0.86, 95% CI: 0.79--0.93, P = 0.0002). Safety analysis showed no significant difference in the RR of severe adverse events between the ivabradine group and the standard anti-heart failure treatment group (P = 0.40). However, ivabradine significantly increased the RR of visual symptoms in CHF patients (RR = 3.82, 95% CI: 1.80--8.13, P = 0.0005).Existing evidence showed that adding ivabradine treatment significantly improved the cardiopulmonary function and increased the exercise capacity of patients with CHF. Adding ivabradine to the standard anti-heart failure treatment reduced the mortality and hospitalization risk and improved the quality of life. Finally, ivabradine significantly increased the RR of visual symptoms in CHF patients.This is the first systematic review and meta-analysis to focus on the efficacy of ivabradine, which improved the cardiac function and increased the exercise capacity in patients with chronic heart failure (CHF). Therefore, this study will help evaluate the quality of life after adding ivabradine to the treatment of patients with CHF, even though there are differences in the standard for resting heart rate, left ventricular ejection fraction (LVEF), and New York Heart Association (NYHA) class in the included studies. This hybrid effect might be smaller when analyzed separately but might have a higher heterogeneity when analyzed in multiple studies.- Published
- 2019
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39. Periodontal Disease and Risk of Bladder Cancer: A Meta-Analysis of 298476 Participants.
- Author
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Xie WZ, Jin YH, Leng WD, Wang XH, and Zeng XT
- Abstract
Objective: It has been reported that the periodontal disease is linked to a number of malignant tumors such as lung cancer and pancreatic cancer. In this study, we aimed to investigate the association of periodontal disease with risk of bladder cancer by a meta-analysis. Methods: PubMed, Scopus, ScienceDirect, and Chinese National Knowledge Infrastructure (CNKI) were searched for eligible publications up to December 15, 2017. Cohort and nested case-control studies on the association between periodontal disease and risk of bladder cancer were included. After study selection and data extraction, pooled hazard ratios (HRs) and their 95% confidence intervals (95%CIs) were calculated using a fixed-effect inverse-variance model. All analyses were performed using the RevMan 5.3 software. Results: Finally, five cohort studies were identified and included in this meta-analysis, involving 1,104 bladder cancer cases of 298,476 participants. Summary estimates based on adjusted data showed that periodontal disease was not significantly associated with the risk of bladder cancer ( HR = 1.09, 95% CI = 0.95-1.25, I
2 = 0%). A similar result was also observed after cumulative, subgroup and sensitivity analyses. Conclusions: Current evidence from cohort studies suggests that patients with periodontal disease may not be at an increased risk of developing bladder cancer.- Published
- 2018
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40. [Analysis on treatment of eight extremely severe burn patients in August 2nd Kunshan factory aluminum dust explosion accident].
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Chai JK, Zheng QY, Li LG, Ye SJ, Wen ZG, Li JJ, Wang SJ, Li DJ, Xie WZ, Wang JL, Hai HL, Chen RJ, Shao JC, Wang H, Li Q, Xu ZM, Xu LP, Xiao HJ, Zhou LM, and Feng R
- Subjects
- Airway Obstruction etiology, Airway Obstruction surgery, Blast Injuries, Burns complications, Dust, Female, Fluid Therapy, Humans, Male, Respiration, Artificial, Retrospective Studies, Sepsis complications, Shock, Skin, Tracheotomy, Wound Healing, Accidents, Occupational, Aluminum toxicity, Burns therapy, Explosions, Sepsis therapy, Skin Transplantation
- Abstract
Objective: To summarize the measures and experience of treatment in mass extremely severe burn patients. Methods: The clinical data and treatment of 8 extremely severe burn patients in August 2 Kunshan factory aluminum dust explosion accident who were admitted in the 100th Hospital of PLA on August 2nd, 2014, were retrospectively analyzed. There were 4 males and 4 females, aging 22-45 (34±7) years, with total burn area of 55%-98% [(89±15)%] total body surface area (TBSA) and full-thickness burn area of 45%-97% [(80±21)%] TBSA. All the 8 patients were accompanied with severe shock, inhalation injury, and blast injury. According to the requirements of former PLA General Logistics Department and Nanjing Military Command, a treatment team was set up including a special medical unit and a special care unit, with Chai Jiake from the First Affiliated Hospital of PLA General Hospital as the team leader, Zheng Qingyi from the 175th Hospital of PLA (the Affiliated Dongnan Hospital of Xiamen University) as the deputy leader, the 100th Hospital of PLA as the treatment base, and burn care, respiratory, nephrology, nursing specialists from the First Affiliated Hospital of PLA General Hospital, and the burn care experts and nursing staff from the 180th Hospital of PLA, 118th Hospital of PLA, 98th Hospital of PLA, and 175th Hospital of PLA, and nurses from the 85th Hospital of PLA, 455th Hospital of PLA, 101th Hospital of PLA, 113th Hospital of PLA as team members. Treatment strategies were adopted as unified coordination by the superior, unified responsibility of team leader, division of labor and cooperation between team members, and multidisciplinary cooperation led by department of burns. With exception of one patient who received deep vein catheterization before admission, the other 7 patients were treated with deep vein catheterization 0.5 to 3.0 hours after admission to correct hypovolemic shock as soon as possible. Eight patients received tracheotomy, and 7 patients were treated with mechanical ventilation by ventilator in protective ventilation strategy with low tide volume and low volume pressure to assist breathing. Fiberoptic bronchoscopy was done one to three times for all the 8 patients to confirm airway injuries and healing status. Escharectomy and Meek dermatoplasty in the extremities of all the 8 patients were performed 3 to 6 days after injury for the first time. Escharectomy, microskin grafting, and covering of large pieces of allogeneic skin on the trunks of 4 patients were performed 11 to 16 days after injury for the second time. The broad-spectrum antibiotics were uniformly used at first time of anti-infective therapy, and then the antibiotics species were adjusted in time. The balance of internal environment was maintained and the visceral functions were protected. One special care unit was on responsibility of only one patient. Psychological intervention was performed on admission. The rehabilitative treatment was started at early stage and in company with the whole treatment. Results: Acute renal injury occurred in 5 patients within 36 hours after injury and their renal function was restored to normal 4 days after injury due to active adjustment of fluid resuscitation program. No pulmonary complications, such as severe pulmonary infection and ventilator-associated pneumonia, occurred in the survived patients. One of the 8 patients died, and the other 7 patients were cured successfully. The wounds were basically healed in 2 patients in 26 or 27 days by 2 or 3 times of operation, and in 5 patients by 4 or 5 times of operation. The basic wound healing time was 26-64 (48±15) days for all the 7 patients. Conclusions: Treatment strategies of unified coordination by the superior, unified responsibility of team leader, division of labor and cooperation between team members, and multidisciplinary cooperation led by department of burns are the bases to successful treatment. Correcting shock as soon as possible is the prerequisite and closing wound as soon as possible is the key to successful treatment. Comprehensive treatment measures, such as maintaining and regulating the function of viscera, improving the body immunity, and preventing and treating the complications, are the important components to successful treatment. It is emphasized that in the treatment of mass extremely severe burn patients, specialist burn treatment should always be in the dominant position, and other related disciplines may play a part in auxiliary function.
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- 2018
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41. [Experience of wound treatment on extremely severe mass burn patients involved in August 2nd Kunshan factory aluminum dust explosion accident].
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Shou BM, Tan Q, Sun BW, Nie LJ, Shen YM, Lyu GZ, Zhang Y, Lin W, Wang ZX, Yu Y, Zhao YH, Wang DW, Yao J, Xie EF, Zheng DF, Xiao SC, Zhang HW, Hong ZJ, Wang L, and Xie WZ
- Subjects
- Accidents, Occupational, Blast Injuries, Body Surface Area, Burns pathology, China, Dust, Humans, Injury Severity Score, Male, Retrospective Studies, Skin pathology, Treatment Outcome, Aluminum toxicity, Burns surgery, Explosions, Mass Casualty Incidents, Skin Transplantation methods, Wound Healing physiology
- Abstract
Objective: To explore experience of wound treatment of extremely severe mass burn patients involved in August 2nd Kunshan factory aluminum dust explosion accident. Methods: On August 2nd, 2014, 98 extremely severe burn mass patients involved in August 2nd Kunshan factory aluminum dust explosion accident were admitted to 20 hospitals in China. The patients with complete medical record were enrolled in the study and divided into microskin graft group with 56 patients and Meek skin graft group with 42 patients. Split-thickness skin in area of residual skin were resected to repair wounds of patients in microskin graft group and Meek skin graft group by microskin grafting and Meek miniature skin grafting, respectively. The residual wound size on 28 days post injury and wound infection after skin grafting of patients in the two groups, and position of donor site of all patients were retrospectively analyzed. Data were processed with t test and chi-square test. Results: The size of residual wound of patients in Meek skin graft group on 28 days post injury was (59±13)% total body surface area (TBSA), which was obviously smaller than that in microskin graft group [(70±14)%TBSA, t =4.379, P <0.05]. Twenty-nine patients in microskin graft group and 11 patients in Meek skin graft group suffered from obvious wound infection after skin grafting. Wounds of patients in two groups were repaired with residual skin around wound in head, trunk, groin, armpit, and uncommon donor sites of scrotum (4 patients), vola (10 patients), and toe or finger web (8 patients). Conclusions: Meek skin graft is the first choice for wound repair of extremely severe burn mass patients, with faster wound healing, less wound infection. Uncommon donor sites of scrotum, vola, and toe or finger web can also be used for wound repair in case of lack of skin.
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- 2018
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42. A Cross-Disciplinary Successful Aging Intervention and Evaluation: Comparison of Person-to-Person and Digital-Assisted Approaches.
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Hsu HC, Kuo T, Lin JP, Hsu WC, Yu CW, Chen YC, Xie WZ, Hsu WC, Hsu YL, and Yu MT
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- Aged, Diet, Female, Health Knowledge, Attitudes, Practice, Health Services Research, Humans, Male, Nutritional Status, Patient Education as Topic, Program Evaluation, Taiwan, Aging physiology, Community Health Services, Exercise physiology, Health Promotion, Health Services for the Aged, Internet, Patient Acceptance of Health Care
- Abstract
Background : Successful aging has been the paradigm of old-age life. The purpose of this study was to implement and evaluate a cross-disciplinary intervention program using two approaches for community-based older adults in Taichung, Taiwan. Methods : The content of the intervention included successful aging concepts and preparation, physical activity, chronic disease and health management, dietary and nutrition information, cognitive training, emotional awareness and coping skills, family relationship and resilience, legal concepts regarding financial protection, and Internet use. The traditional person-to-person (P2P) intervention approach was implemented among participants at urban centers, and the personal-and-digital (P&D) intervention approach was implemented among participants at rural centers; before the P&D group received the intervention, participants were assessed as the control group for comparison. Results : Healthy behavior and nutrition improved for the P2P group, although not significantly. Strategies for adapting to old age and reducing ineffective coping were significantly improved in the P2P group. The ability to search for health information improved in the P&D group, and knowledge of finance-related law increased in the P2P group. Conclusion : A continuous, well-designed and evidence-based intervention program is beneficial for improving the health of older adults, or at least delaying its decline.
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- 2018
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43. Trillium tschonoskii maxim extract attenuates abnormal Tau phosphorylation.
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Luo HB, Shang N, Xie WZ, Wen DJ, Qu M, Huang S, Fan SS, Chen W, Mou NQ, Liu XY, Chen Q, Xie FF, and Li JX
- Abstract
Large-scale epidemiological studies have found that hyperhomocysteinemia is a powerful, independent risk factor for Alzheimer's disease. Trillium tschonoskii maxim is a traditional Chinese medicine that is used to promote memory. However, scientific understanding of its mechanism of action is limited. This report studied the potential neuroprotective effects of Trillium tschonoskii maxim extract against homocysteine-induced cognitive deficits. Rats were intravenously injected with homocysteine (400 μg/kg) for 14 days to induce a model of Alzheimer's disease. These rats were then intragastrically treated with Trillium tschonoskii maxim extract (0.125 or 0.25 g/kg) for 7 consecutive days. Open field test and Morris water maze test were conducted to measure spontaneous activity and learning and memory abilities. Western blot assay was used to detect the levels of Tau protein and other factors involved in Tau phosphorylation in the hippocampus. Immunohistochemical staining was used to examine Tau protein in the hippocampus. Golgi staining was applied to measure hippocampal dendritic spines. Our results demonstrated that homocysteine produced learning and memory deficits and increased levels of Tau phosphorylation, and diminished the activity of catalytic protein phosphatase 2A. The total number of hippocampal dendritic spines was also decreased. Trillium tschonoskii maxim extract treatment reversed the homocysteine-induced changes. The above results suggest that Trillium tschonoskii maxim extract can lessen homocysteine-induced abnormal Tau phosphorylation and improve cognitive deterioration such as that present in Alzheimer's disease., Competing Interests: None declared
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- 2018
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44. Regenerative peripheral neuropathic pain: novel pathological pain, new therapeutic dimension.
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Ding YQ, Xie WZ, and Qi JG
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- Animals, Axons physiology, Axotomy methods, Humans, Nerve Regeneration physiology, Neuralgia physiopathology, Peripheral Nerve Injuries physiopathology, Peripheral Nervous System Diseases physiopathology
- Abstract
After peripheral nerve damage, injured or stressed primary sensory neurons (PSNs) transmitting pathological pain (pathopain) sensitize central nervous system (CNS) neural circuits and determine behavioral phenotypes of peripheral neuropathic pain (PNP). Therefore, phenotypic profiling of pathopain-transmitting PSNs is vital for probing and discovering PNP conditions. Following peripheral nerve injuries (PNIs), PNP might be potentially transmitted by distinct classes of damaged or stressed PSNs, such as axotomized PSNs without regeneration (axotomy-non-regenerative neurons), axotomized PSNs with accurate regeneration (axotomy-regenerative neurons), and spared intact PSNs adjacent to axotomized neurons (axotomy-spared neurons). Both axotomy-non-regenerative neurons and axotomy-spared neurons have been definitely shown to participate in specific PNP transmission. However, whether axotomy-regenerative neurons could transmit PNP with unique features has remained unclear. Recent studies in rodent models of axonotmesis have clearly demonstrated that axotomy-regenerative neurons alone transmit persistent pathological pain with unique behavioral phenotypes. In this review, we exclusively review this novel category of PNP, reasonably term it 'regenerative peripheral neuropathic pain', and finally discuss its potential clinical significance as a new therapeutic dimension for PNIs beyond nerve regeneration.
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- 2017
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45. Public Perception of Cadaver Organ Donation in Hunan Province, China.
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Luo AJ, Xie WZ, Luo JJ, and Ouyang W
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- Adolescent, Adult, Attitude to Death, Cadaver, China, Female, Humans, Male, Middle Aged, Students psychology, Surveys and Questionnaires, Tissue and Organ Procurement methods, Universities, Young Adult, Health Knowledge, Attitudes, Practice, Tissue Donors psychology, Tissue and Organ Procurement statistics & numerical data
- Abstract
Objective: Our aim was to (1) survey public' perception and attitudes toward organ donation and (2) analyze the relationship between knowledge, attitudes, and willingness to donate., Methods: We developed a questionnaire, and conducted the survey with stratified random sampling. Overall, 600 residents, aged ≥18 who resided in Hunan, and 600 undergraduates from 3 universities in Hunan were surveyed randomly. For this study, 1085 valid questionnaires were completed, with a response rate of 90.4%., Results: Of the 1085 participants, 581 (53.5%) were students, 504 (46.5%) were residents, and 519 (47.8%) were male and 566 (52.2%) female. The mean accuracy rate was 71.96%, and the students' mean accuracy rate was slightly higher than that of the resident population (73.06% vs 70.68%, respectively). The results showed that 82.2% of public support organ donation, and 53.5% were willing to donate their organs after death. Students scored higher than the residents (88% vs 75.6% and 55.6% vs 51.2%). Nearly 1.8% felt that organ donation was against their religion, 14.9% thought it was important to ensure the integrity of the body, 71.7% agreed that organ donation allowed a positive outcome after a person's death, and 61.5% agreed that organ donation represented a continuation of life, to help families cope with grief. Age and gender were related to attitudes. Public knowledge of organ donation and their attitudes were correlated positively (r = 0.666)., Conclusions: Public knowledge of organ donation is poor, biased, and incomplete, and based on television, movies, and communication networks. Positive attitudes toward donation displayed in the surveys were not matched by actual organ donation., (Copyright © 2016 Elsevier Inc. All rights reserved.)
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- 2016
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46. The Fixed Propeller-Like Conformation of Tetraphenylethylene that Reveals Aggregation-Induced Emission Effect, Chiral Recognition, and Enhanced Chiroptical Property.
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Xiong JB, Feng HT, Sun JP, Xie WZ, Yang D, Liu M, and Zheng YS
- Abstract
The propeller-like conformation of tetraphenylethylene (TPE) with aggregation-induced emission (AIE) effect was partially and completely fixed by intramolecular cyclization for the first time. The immobilization of propeller-like conformation was found to show great advantages in determining the enantiomer purity, identifying the chiral amines. The completely fixed conformers are resolved into M- and P-enantiomer, which showed mirror imaged CD and almost quantitative fluorescence quantum yield. Furthermore, it also showed a mirror and large circularly polarized luminescence dissymmetric factor, depending on the helicity of the enantiomer. The result provides the most direct and persuasive evidence for AIE via the restriction of intramolecular rotation and finds the new insight of the compounds in chiroptical property.
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- 2016
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47. Enantioselective Recognition for Many Different Kinds of Chiral Guests by One Chiral Receptor Based on Tetraphenylethylene Cyclohexylbisurea.
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Xiong JB, Xie WZ, Sun JP, Wang JH, Zhu ZH, Feng HT, Guo D, Zhang H, and Zheng YS
- Abstract
A neutral chiral receptor based on TPE cyclohexylbisurea was synthesized and could discriminate the enantiomers of many different kinds of chiral reagents, including chiral acidic compounds, basic compounds, amino acids, and even neutral alcohols. The (1)H NMR spectra disclosed that the ability of chiral recognition could be ascribed to the multiple hydrogen bonds and CH-π interactions between the TPE urea receptor and the enantiomer of the chiral guest, which led to the selective aggregation of the receptor with one of the two enantiomers. This result exhibited a great potential in enantiomer discernment and high-throughput analysis of enantiomer composition of these chiral analytes by one chiral AIE molecule.
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- 2016
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48. Behavioral characterization of neuropathic pain on the glabrous skin areas reinnervated solely by axotomy-regenerative axons after adult rat sciatic nerve crush.
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Ren HY, Ding YQ, Xiao X, Xie WZ, Feng YP, Li XY, and Qi JG
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- Animals, Axons pathology, Axotomy adverse effects, Disease Models, Animal, Female, Ganglia, Spinal metabolism, Ganglia, Spinal pathology, Hyperalgesia physiopathology, Male, Nerve Crush adverse effects, Nerve Regeneration physiology, Pain Measurement, Rats, Rats, Sprague-Dawley, Sciatic Neuropathy, Sciatica etiology, Statistics, Nonparametric, Pain Threshold physiology, Recovery of Function physiology, Sciatica pathology, Sciatica physiopathology, Skin innervation
- Abstract
In cranial and spinal nerve ganglia, both axotomized primary sensory neurons without regeneration (axotomy-nonregenerative neurons) and spared intact primary sensory neurons adjacent to axotomized neurons (axotomy-spared neurons) have been definitely shown to participate in pain transmission in peripheral neuropathic pain states. However, whether axotomized primary sensory neurons with regeneration (axotomy-regenerative neurons) would be integral components of neural circuits underlying peripheral neuropathic pain states remains controversial. In the present study, we utilized an adult rat sciatic nerve crush model to systematically analyze pain behaviors on the glabrous plantar surface of the hindpaw sural nerve skin territories. To the best of our knowledge, our results for the first time showed that heat hyperalgesia, cold allodynia, mechanical allodynia, and mechanical hyperalgesia emerged and persisted on the glabrous sural nerve skin areas after adult rat sciatic nerve crush. Interestingly, mechanical hyperalgesia was sexually dimorphic. Moreover, with our optimized immunofluorescence staining protocol of free-floating thick skin sections for wide-field epifluorescence microscopic imaging, changes in purely regenerative reinnervation on the same skin areas by axotomized primary sensory afferents were shown to be paralleled by those pathological pain behaviors. To our surprise, Protein Gene Product 9.5-immunoreactive nerve fibers with regular and large varicosities ectopically emigrated into the upper dermis of the glabrous sural nerve skin territories after adult rat sciatic nerve crush. Our results indicated that axotomy-regenerative primary sensory neurons could be critical elements in neural circuits underlying peripheral neuropathic pain states. Besides, our results implied that peripheral neuropathic pain transmitted by axotomy-regenerative primary sensory neurons alone might be a new dimension in the clinical therapy of peripheral nerve trauma beyond regeneration.
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- 2016
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49. [Effect of application of pulse contour cardiac output monitoring technology on delayed resuscitation of patients with extensive burn in a mass casualty].
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Yang WX, Guo GH, Shen GL, Lin W, Zhao XY, Qi Q, Qian HG, Xie WZ, and Wang ZX
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- Fluid Therapy, Hematocrit, Humans, Retrospective Studies, Shock therapy, Burns therapy, Cardiac Output, Mass Casualty Incidents, Monitoring, Physiologic methods, Resuscitation
- Abstract
Objective: To investigate the effect of the application of pulse contour cardiac output (PiCCO) monitoring technology on delayed resuscitation of patients with extensive burn in a mass casualty., Methods: The clinical data of 41 patients injured in Kunshan dash explosion hospitalized in the First Affiliated Hospital of Soochow University, the 100th Hospital of the People's Liberation Army, and Suzhou Municipal Hospital were retrospectively analyzed. The patients were divided into traditional monitoring group (T, n=22) and PiCCO monitoring group (P, n=19) according to the monitoring technic during delayed resuscitation. The input volumes of electrolyte, colloids, and water of patients in the two groups within 2 hours after admission, the first, second, and third 8 hours post injury (HPI), and the first 24 HPI were recorded. The fluid infusion coefficients of patients in the two groups within 2 hours after admission, the first, second, and third 8 HPI, and the first, second, third, and fourth 24 HPI were calculated. The urine volume, mean arterial pressure (MAP), and central venous pressure (CVP) of patients in the two groups at post injury hour (PIH) 8, 16, 24, 48, 72, and 96 were recorded. The blood lactate, base excess, hematocrit (HCT), and platelet count of patients in the two groups at PIH 24, 48, 72, and 96 were recorded. Complications and death of patients in the two groups were recorded. Data were processed with analysis of variance for repeated measurement, Chi-square test, t test, and Wilcoxon test. The deviations between figure 2 and the fluid infusion coefficients of the first or second 24 HPI, and the deviations between figure 1 and the fluid infusion coefficients of the second, third or fourth 24 HPI were calculated, and the three groups deviations were analyzed by Pearson correlation analysis., Results: (1) The input volumes of electrolyte of patients in group P were significantly more than those in group T within the first 8 and 24 HPI (with Z values respectively -3.506 and -2.654, P<0.05 or P<0.01), and the input volumes of electrolyte of patients in the two groups were similar within the other time periods (with Z values from -1.871 to -0.680, P values above 0.05). The input volumes of colloid of patients in group P were significantly less than those in group T within the second, third 8 HPI, and the first 24 HPI (with Z values from -4.720 to -2.643, P<0.05 or P<0.01), and the input volumes of colloid of patients in the two groups were similar within the other time periods (with Z values respectively -2.376 and -2.303, P values above 0.05). The input volumes of water of patients in the two groups were similar within each time period (with Z values from -1.959 to -0.241, P values above 0.05). (2) The fluid infusion coefficients of patients in group T within 2 hours after admission, the first, second, and third 8 HPI, and the first, second, third, and fourth 24 HPI were respectively (0.59±0.18), (0.70±0.23), (0.94±0.24), (0.74±0.14), (2.38±0.44), (1.70±0.56), (1.35±0.67), and (0.92±0.46) mL·kg(-1)·%TBSA(-1,) and the values in group P were respectively (0.59±0.29), (0.82±0.37), (0.86±0.38), (0.59±0.24), (2.27±0.85), (2.13±0.68), (1.59±3.78), and (1.46±0.56) mL·kg(-1)·%TBSA(-1). The fluid infusion coefficients of patients in the two groups were similar within 2 hours after admission, the first, second 8 HPI, and the first, third 24 HPI (with t values from -1.262 to 0.871, P values above 0.05). The fluid infusion coefficient of patients in group P was significantly lower than that in group T within the third 8 HPI (t=2.456, P<0.05), and the fluid infusion coefficient of patients in group P were significantly higher than that in group T within the second and fourth 24 HPI (with t values respectively -2.234 and -3.370, P<0.05 or P<0.01). There was obviously negative correlation between the deviations of figure 2 and the fluid infusion coefficient of the first 24 HPI and that of the second 24 HPI (r=-0.438, P<0.01). There was no obvious correlation between the deviations of figure 1 and the fluid infusion coefficient of the second 24 HPI and that of the third 24 HPI (r=0.091, P>0.05). There was obviously positive correlation between the deviations of figure 1 and the fluid infusion coefficient of the second 24 HPI and that of the fourth 24 HPI (r=0.695, P<0.01). (3) The urine volumes and MAP of patients in the two groups were similar at each time point (with Z values from -1.884 to 0, P values above 0.05). The CVP of patients in group P were significantly higher than that in group T at PIH 16, 24, 48, and 72 (with Z values from -4.341 to -2.213, P<0.05 or P<0.01), and the CVP of patients in the two groups were similar at the other time points (with Z values respectively -0.132 and -1.208, P values above 0.05). The blood lactate of patients in group P was significantly higher than that in group T at PIH 72 (Z= -2.958, P<0.01) , and the blood lactate of patients in the two groups were similar at the other time points (with Z values from -1.742 to -0.433, P values above 0.05). The base excess of patients in group P were significantly lower than that in group T at PIH 24, 48, 72, and 96 (with Z values from -4.970 to -4.734, P values below 0.01). The HCT of patients in the two groups were similar at PIH 24, 48, 72, and 96 (with Z values from -2.239 to -0.196, P values above 0.05). There were significant differences in the platelet count of patients in the two groups at PIH 24, 72, and 96 (with Z values from -4.578 to -2.512, P<0.05 or P<0.01). (4) There were 15 cases in group T accompanied by complications, and 7 cases died, while 13 cases in group P accompanied by complications, and 9 cases died. The occurrence of complications and death of patients in the two groups were similar (with χ(2) values respectively <0.001 and 1.306, P values above 0.05)., Conclusions: On the basis of traditional burn shock monitoring index, the effect of fluid resuscitation in patients with severe burn monitored by PiCCO technology is not so good and still needs further clinical research.
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- 2016
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50. Distinct processing of social and monetary rewards in late adolescents with trait anhedonia.
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Chan RC, Li Z, Li K, Zeng YW, Xie WZ, Yan C, Cheung EF, and Jin Z
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- Adolescent, Anticipation, Psychological, Cues, Feedback, Psychological, Female, Frontal Lobe physiology, Humans, Limbic System, Male, Motivation, Neostriatum, Neuropsychological Tests, Pleasure, Punishment, Young Adult, Anhedonia, Reward, Social Environment
- Abstract
Objective: Anticipatory and consummatory dissociation of hedonic experience may manifest as trait anhedonia in healthy and clinical populations. It is still unclear whether the underlying neural mechanisms of the monetary-based and affect-based incentive delay paradigms are distinct from each other. The present study aimed to examine the similarities and differences between the Affect Incentive Delay (AID) and the Monetary Incentive Delay (MID) imaging paradigms in relation to brain activations., Method: We administered the AID and the MID imaging tasks to 28 adolescent participants. A cue signaling the type of forthcoming feedback (reward or punishment) was displayed to the participants, followed by a target-hit task with corresponding reward or punishment., Results: The striatal and limbic regions were activated during the anticipatory phase of MID, while there was no brain activation during the anticipatory phase of AID. In the consummatory phase, the MID task activated the medial frontal cortex, while the AID task activated the frontal and dorsal limbic regions. We further found that the anhedonic group exhibited significant hypoactivation than the nonanhedonic group at the left pulvinar, the left claustrum and the left insula to positive cues in the anticipatory phase of the AID task., Conclusions: The results suggest that the AID and the MID tasks have unique activation patterns. Our findings also suggest that the AID task may be more sensitive in detecting anhedonia in people with trait anhedonia., ((c) 2016 APA, all rights reserved).)
- Published
- 2016
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