898 results on '"Qi RQ"'
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2. Fuzi lizhong pills alter microbial community compositions and metabolite profiles in ulcerative colitis rat with spleen-kidney yang deficiency syndrome.
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Zhou YL, Wu J, Wang HL, Feng WW, Peng F, Zhang RQ, Yan HL, Liu J, Tan YZ, and Peng C
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- Animals, Male, Rats, Metabolomics, RNA, Ribosomal, 16S genetics, Spleen drug effects, Spleen metabolism, Kidney drug effects, Kidney metabolism, Metabolome drug effects, Disease Models, Animal, Colitis, Ulcerative drug therapy, Colitis, Ulcerative microbiology, Colitis, Ulcerative chemically induced, Yang Deficiency drug therapy, Drugs, Chinese Herbal pharmacology, Gastrointestinal Microbiome drug effects, Rats, Sprague-Dawley
- Abstract
Ethnopharmacological Relevance: Ulcerative colitis (UC) is a chronic inflammatory bowel condition that is frequently related with Spleen-Kidney Yang Deficiency Syndrome (SKYD) in Chinese medicine. Fuzi Lizhong Pill (FLZP), a traditional medicine for SKYD, has been utilized in China for generations, although the exact mechanism by which it treats UC is unknown., Aim of the Study: The goal of this study is to further understand FLZP's therapeutic mechanism in SKYD-associated UC., Materials and Methods: To investigate the impact of FLZP on SKYD-associated UC, we used a comprehensive method that included serum metabolomics and gut microbiota profiling. The chemical composition of FLZP was determined using mass spectrometry. UC rats with SKYD were induced and treated with FLZP. Serum metabolomics and 16S rRNA microbial community analysis were used to evaluate FLZP's effects on endogenous metabolites and gut microbiota, respectively. Correlation analysis investigated the association between metabolites and intestinal flora. A metabolic pathway analysis was undertaken to discover putative FLZP action mechanisms., Results: FLZP contains 109 components, including liquiritin (584.8176 μg/g), benzoylaconine (16.3087 μg/g), benzoylhypaconine (31.9583), and hypaconitine (8.1160 μg/g). FLZP predominantly regulated seven metabolites and eight metabolic pathways involved in amino acid and nucleotide metabolism, with an emphasis on energy metabolism and gastrointestinal digestion. FLZP also influenced intestinal flora variety, increasing probiotic abundance while decreasing pathogenic bacteria prevalence. An integrated investigation identified associations between changes in certain gut flora and energy metabolism, specifically the tricarboxylic acid (TCA) cycle., Conclusions: FLZP successfully cures UC in SKYD rats by regulating amino acid and energy metabolism. Its positive effects may include altering microbiota composition and metabolite profiles in UC rats with SKYD. These findings shed light on FLZP's mode of action and its implications for UC management., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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3. Sirtuin 7 ameliorates cuproptosis, myocardial remodeling and heart dysfunction in hypertension through the modulation of YAP/ATP7A signaling.
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Chen YF, Qi RQ, Song JW, Wang SY, Dong ZJ, Chen YH, Liu Y, Zhou XY, Li J, Liu XY, and Zhong JC
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- Animals, Rats, Mice, Male, Copper-Transporting ATPases genetics, Copper-Transporting ATPases metabolism, YAP-Signaling Proteins metabolism, Ventricular Remodeling drug effects, Myocardium metabolism, Myocardium pathology, Fibrosis, Mice, Inbred C57BL, Angiotensin II, Fibroblasts metabolism, Fibroblasts drug effects, Myocytes, Cardiac metabolism, Myocytes, Cardiac drug effects, Myocytes, Cardiac pathology, Hypertension metabolism, Hypertension genetics, Hypertension pathology, Sirtuins metabolism, Sirtuins genetics, Rats, Inbred SHR, Signal Transduction drug effects
- Abstract
Myocardial fibrosis is a typical pathological manifestation of hypertension. However, the exact role of sirtuin 7 (SIRT7) in myocardial remodeling remains largely unclear. Here, spontaneously hypertensive rats (SHRs) and angiotensin (Ang) II-induced hypertensive mice were pretreated with recombinant adeno-associated virus (rAAV)-SIRT7, copper chelator tetrathiomolybdate (TTM) or copper ionophore elesclomol, respectively. Compared with normotensive controls, reduced SIRT7 expression and augmented cuproptosis were observed in hearts of hypertensive rats and mice with decreased FDX1 levels and increased HSP70 levels. Notably, intervention with rAAV-SIRT7 and TTM strikingly prevented DLAT oligomers aggregation, and elevated ATP7A and TOM20 expressions, contributing to the alleviation of cuproptosis, mitochondrial injury, myocardial remodeling and heart dysfunction in spontaneously hypertensive rats and Ang II-induced hypertensive mice. In cultured rat primary cardiac fibroblasts (CFs), rhSIRT7 alleviated CuCl
2 , Ang II or elesclomol-induced cuproptosis and fibroblast activation by blunting DLAT oligomers accumulation and downregulating α-SMA expression. Additionally, conditioned medium from rhSIRT7-pretreated CFs remarkably mitigated cellular hypertrophy and mitochondrial impairments of neonatal rat cardiomyocytes, as well as cell migration and polarization of RAW 264.7 macrophages. Importantly, verteporfin reduced CuCl2 -induced cuproptosis, mitochondrial injury and fibrotic activation in CFs. Knockdown of ATP7A with si-ATP7A blocked cellular protective effects of rhSIRT7 and verteporfin in CFs. In conclusion, SIRT7 attenuates cuproptosis, myocardial fibrosis and heart dysfunction in hypertension through the modulation of YAP/ATP7A signaling. Targeting SIRT7 is of vital importance for developing therapeutic strategies in hypertension and hypertensive heart disorders., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)- Published
- 2024
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4. Unveiling spatiotemporal distribution, partitioning, and transport mechanisms of tire additives and their transformation products in a highly urbanized estuarine region.
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Zhang HY, Liu YH, Wei LN, Zhu RQ, Zhao JL, Liu S, Xu XR, and Ying GG
- Abstract
Numerous tire additives are high-production volume chemicals that are used extensively worldwide. However, their presence and partitioning behavior remain largely unknown, particularly in marine environments. This study is the first to reveal the spatiotemporal distribution, multimedia partitioning, and transport processing of 22 tire additives and their transformation products (TATPs) in a highly urbanized estuary (n = 166). Nineteen, 18, and 20 TATPs were detectable in water, suspended particulate matter (SPM), and sediments, respectively, with total levels of 59.7-2021 ng/L, 164-6935 ng/g, and 4.66-58.4 ng/g, respectively. The multimedia partitioning mechanisms of TATPs are governed by their molecular weight, hydrophobicity, and biodegradation rate. Mass inventories coupled with model simulations have revealed that substantial quantities of TATPs accumulate within estuarine environments, and these compounds can be continuously transported into the ocean, particularly during the wet season. According to the multi-criteria evaluation approach, four and three TATPs were identified as high-priority pollutants during the dry and wet seasons, respectively. Unexpectedly, N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone was only listed as a medium-priority pollutant. This study underscores the importance of marine surveillance and advocates for particular attention to these ubiquitous but underexplored TATPs in future studies., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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5. Corrigendum to Real-time semantic segmentation and anomaly detection of functional images for cell therapy manufacturing Cytotherapy 25 (2023) 1361 - 1369.
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Chen RQ, Joffe B, Costa PC, Serafini C, Wang B, Balakirsky S, Robles F, Roy K, and Li J
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- 2024
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6. Elabela alleviates cuproptosis and vascular calcification in vitaminD3- overloaded mice via regulation of the PPAR-γ /FDX1 signaling.
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Qi RQ, Chen YF, Cheng J, Song JW, Chen YH, Wang SY, Liu Y, Yan KX, Liu XY, Li J, and Zhong JC
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- Animals, Mice, Rats, Male, Peptide Hormones metabolism, Mice, Inbred C57BL, Muscle, Smooth, Vascular metabolism, Muscle, Smooth, Vascular drug effects, Disease Models, Animal, Myocytes, Smooth Muscle metabolism, Myocytes, Smooth Muscle drug effects, Rats, Sprague-Dawley, Homeodomain Proteins metabolism, Homeodomain Proteins genetics, Vascular Calcification metabolism, Vascular Calcification etiology, Vascular Calcification drug therapy, Vascular Calcification pathology, PPAR gamma metabolism, Signal Transduction drug effects, Cholecalciferol pharmacology
- Abstract
Background: Vascular calcification is a crucial pathophysiological process associated with age-related cardiovascular diseases. Elabela, a recently identified peptide, has emerged as a significant player in the regulation of cardiovascular function and homeostasis. However, the effects and underlying mechanisms of Elabela on age-related vascular calcification remain largely unexplored., Methods: In-vivo vascular calcifications of C57BL/6J mice (8-week-old) and young (8-week-old) or aged (72-week-old) SD rats were injected with vitamin D3 (VitD3) or saline, respectively. Furthermore, the VitD3-overloaded mice received Elabela (1 mg/kg/d), peroxisome proliferators-activated receptor-γ (PPAR-γ) activator Rosiglitazone (5 mg/kg/d) or copper-ionophore Elesclomol (20 mg/kg/d), respectively. As for in-vitro studies, primary rat vascular smooth muscle cells (VSMCs) were isolated from aortas and cultured for explore the role and underlying mechanism of Elabela in vascular calcification., Results: There were marked increases in FDX1 and Slc31a1 levels in both aortas and VSMCs during vascular calcification, coinciding with a rise in copper levels and a decrease in Elabela levels. Alizarin red and von-Kossa staining indicated that the administration of Elabela effectively hindered the progression of vascular cuproptosis and arterial calcification in VitD3-overloaded mice and rat arterial rings models. Moreover, Elabela significantly suppressed osteogenic differentiation and calcium deposition in VSMCs and strikingly reversed high phosphate-induced augmentation of FDX1 expression, DLAT aggregation as well as intracellular copper ion levels. More importantly, Elabela exhibited remarkable abilities to prevent mitochondrial dysfunctions in primary rat VSMCs by maintaining mitochondrial membrane potential, inhibiting mitochondrial division, reducing mitochondrial ROS production and increasing ATP levels. Interestingly, Elabela mitigated cellular senescence and production of pro-inflammatory cytokines including IL-1α, IL-1β, IL-6, IL-18 and TNF-α, respectively. Furthermore, Elabela upregulated the protein levels of PPAR-γ in VitD3-overloaded mice. Administrating PPAR-γ inhibitor GW9662 or blocking the efflux of intracellular copper abolished the protective effect of Elabela on vascular calcification by enhancing levels of FDX1, Slc31a1, Runx2, and BMP2., Conclusion: Elabela plays a crucial role in protecting against vascular cuproptosis and arterial calcification by activating the PPAR-γ /FDX1 signaling. Elabela supplementation and cuproptosis suppression serve as effective therapeutic approaches for managing vascular calcification and related cardiovascular disorders., Competing Interests: Declarations. Ethical approval and consent to participate: All animal experiments were approved by the Institutional Animal Care Committee at Beijing Chaoyang Hospital, Capital Medical University, Beijing, China and performed in accordance with the US National Institutes of Health Guide for the Care and Use of Laboratory Animals. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests., (© 2024. The Author(s).)
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- 2024
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7. Whole-exome sequencing reveals genomic landscape of intrahepatic cholangiocarcinoma and identifies SAV1 as a potential driver.
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Zhou ZJ, Ye YH, Hu ZQ, Hou YR, Liu KX, Sun RQ, Wang PC, Luo CB, Li J, Zou JX, Zhou J, Fan J, Song CL, and Zhou SL
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- Humans, Male, Female, Middle Aged, Cell Cycle Proteins genetics, Cell Cycle Proteins metabolism, Animals, Cell Line, Tumor, Mice, Genomics methods, Aged, Hippo Signaling Pathway, YAP-Signaling Proteins genetics, YAP-Signaling Proteins metabolism, Signal Transduction genetics, Prognosis, Cholangiocarcinoma genetics, Cholangiocarcinoma pathology, Exome Sequencing, Bile Duct Neoplasms genetics, Bile Duct Neoplasms pathology, Mutation
- Abstract
Intrahepatic cholangiocarcinoma (ICC) is the second most common primary hepatic malignancy after hepatocellular carcinoma, with poor prognosis and limited treatment options. The genomic features of ICC in Chinese patients remain largely unknown. In this study, we perform deep whole-exome sequencing of 204 Chinese primary ICCs and characterize genomic alterations and clonal evolution, and reveal their associations with patient outcomes. We identify six mutational signatures, including Signatures A and F, which are highly similar to previously described signatures linked to aristolochic acid and aflatoxin exposures, respectively. We also identify 13 significantly mutated genes in the ICC samples, including SAV1. We find that SAV1 was mutated in 2.9% (20/672) of 672 ICC samples. SAV1 mutation is associated with lower SAV1 protein levels, higher rates of tumor recurrence, and shorter overall patient survival. Biofunctional investigations reveal a tumor-suppressor role of SAV1: its inactivation suppresses Hippo signaling, leading to YAP activation, thereby promoting tumor growth and metastasis. Collectively, our results delineate the genomic landscape of Chinese ICCs and identify SAV1 as a potential driver of ICC., Competing Interests: Competing interests The authors declare no competing interests., (© 2024. The Author(s).)
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- 2024
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8. Impact of serial clinical swallow evaluations and feeding interventions on growth and feeding outcomes in children with long-gap esophageal atresia after anastomosis: a retrospective cohort study.
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Wang JL, Huang RQ, Tang CY, Wu WJ, Li F, Ren T, Wang J, and Pan WH
- Abstract
Background: Children undergoing surgical anastomosis for long-gap esophageal atresia (LGEA) often suffer from complications related to delayed oral feeding, which may impair their early development. Clinical swallow evaluation (CSE) is an effective technique to improve feeding outcomes. However, there are limited evidences on the application of CSE in these children., Methods: Since 2020, serial CSEs have been consistently implemented for children undergoing anastomosis for LGEA in our hospital. We conducted a retrospective study comparing 19 children who received CSE with 31 historical controls who did not. Inverse probability of treatment weighting (IPTW) was applied to balance preoperative characteristics. We compared the time from surgery to full oral feeding and the rate of postoperative complications between the two groups. Growth curves for length-for-age Z score (LAZ) and weight-for-age Z score (WAZ) up to age 3 were fitted using generalized additive mixed models., Results: The median time to full oral feeding was 1.1 months [interquartile range (IQR), 0.8-2.4] in the CSE group and 1.5 months (IQR, 0.6-5.7) for controls. After IPTW, CSE was associated with a shorter time to full oral feeding, with a weighted hazard ratio of 2.26 [95% confidence interval (CI), 1.21 to 4.24]. LAZ growth curves significantly differed between groups (P = 0.001)., Conclusion: CSE was associated with the expedited achievement of full oral feeding and a more favorable growth pattern before 3 years of age., Competing Interests: Declarations Conflict of interest No financial or non-financial benefits have been received or will be received from any party related directly or indirectly to the subject of this article. Ethical approval Consent of patients were performed according to the protocol and approval from Xinhua Hospital Ethics Committee Affiliated to Shanghai Jiao Tong University School of Medicine (No. XHEC-SHHDC-2020-085) and the study was conducted in accordance with the revised Declaration of Helsinki. Informed consent to participate in the study have been obtained from parents of participants. The study is registered at clinicaltrials.gov as ChiCTR2000037125. Consent for publication Written consent for publication of the case details together with imaging have been obtained from his parents., (© 2024. The Author(s).)
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- 2024
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9. DynaCT biliary reconstruction via a 3D C-arm cholangiography system: clinical application in hepatolithiasis.
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Cao YW, Chen DQ, Lin JL, Ding ZW, Li PH, Li RQ, and Ye YQ
- Abstract
Objective: Dyna computed tomography (DynaCT) is an innovative clinical imaging tool used to obtain three-dimensional (3D) images of biliary structures via the Artis Zee DSA system (SIEMENS Company, Germany). DynaCT is a type of 3D cone beam computed tomography (CBCT) reconstruction produced from a two-dimensional (2D) cholangiography system by rotating the C-arm without moving the patient. The aim of this study was to evaluate the technical approach and application value of DynaCT to diagnosis hepatolithiasis and biliary stenosis., Methods: This was a retrospective single-centre series of 37 hepatolithiasis patients with tubes receiving one-step percutaneous transhepatic cholangioscopic lithotripsy (one-step PTCSL) between October 2021 and October 2022: twenty-one patients were guided by CT (CT group) and sixteen by DynaCT biliary reconstruction (DynaCT group). We compared DynaCT biliary reconstruction technology with computed tomography (CT) in the application of bile ducts., Results: DynaCT biliary reconstruction was successfully performed in 37 patients. Biliary stenosis, including anatomy, morphology, and size, was visualized via DynaCT. Compared with the CT group, the DynaCT group was characterized by significantly more target biliary branches with stones (92 vs. 48, P < 0.05), a higher percentage of secondary stenosis (75.76% vs. 24.24%, p < 0.05), a greater percentage of biliary infection (37.5% vs. 9.5%, P = 0.041), a shorter overall stone clearance time (26.38 ± 13.49 vs. 52.67 ± 30.10, P = 0.001), and a lower rate of reoperation for residual stones (25.00% vs. 66.67%, P = 0.012). DynaCT had a lower contrast agent (25.61 ± 5.13 vs. 42.69 ± 11.15, p < 0.05). However, DynaCT increased radiation exposure (38.12 ± 10.59 vs. 25.79 ± 4.76, p < 0.05). There were no significant differences between the two groups regarding the clearance ratio of the calculus or several postoperative complications., Conclusion: DynaCT for biliary reconstruction has the potential to be a powerful evaluation tool for one-step PTCSL surgery and could lead to new possibilities for hepatobiliary surgery., Advances in Knowledge: DynaCT was used for the first time in patients with hepatolithiasis and biliary stenosis. Compared with CT, DynaCT for biliary reconstruction results in higher-quality 3D biliary, blood vessel and liver images. On the basis of the DynaCT biliary model, one-step PTCSL has the potential to improve the stone clearance ratio and shorten the stone clearance time and reoperation ratio., (© The Author(s) 2024. Published by Oxford University Press on behalf of the British Institute of Radiology. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
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- 2024
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10. Upcycling Polyethylene to High-Purity Hydrogen under Ambient Conditions via Mechanocatalysis.
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Gu R, Wang T, Ma Y, Wang TX, Yao RQ, Zhao Y, Wen Z, Han GF, Lang XY, and Jiang Q
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Polyethylene (PE) is the most abundant plastic waste, and its conversion to hydrogen (H
2 ) offers a promising route for clean energy generation. However, PE decomposition typically requires high temperatures due to its strong chemical bonds, leading to significant carbon emissions and low H2 selectivity (theoretically less than 75 vol % after accounting for further steam-reforming reactions). Here, we report a mechanocatalytic strategy that upcycles PE into high-purity H2 (99.4 vol %) with an exceptional H2 recovery ratio of 98.5 % (versus 15.7 % via thermocatalysis), using manganese as a catalyst at a low temperature of 45 °C. This method achieves a reaction rate 3 orders of magnitude higher than thermocatalysis. The marked improvement in H2 recovery ratio is mainly due to metal carbides formation induced by the mechanocatalytic process, which does not catalyze hydrocarbons formation. This work is expected to advance studies of the conversion of polyolefins to high-purity H2 with net-zero carbon emissions., (© 2024 Wiley-VCH GmbH.)- Published
- 2024
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11. anti -Selective Carboacylation of Alkynes via Photoredox/Nickel Dual Catalysis.
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Pan XH, Shi CX, Hou YP, Wang LF, Niu RQ, and Guo L
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Here, we report an intermolecular carboacylation of terminal alkynes with tertiary and secondary alkyltrifluoroborates as well as acyl chlorides via photoredox/nickel dual catalysis, affording a varity of stereodefined trisubstituted enones in good to excellent yields and E stereoselectivity, through a radical relay process. This redox-neutral protocol exhibits excellent functional group tolerance, exclusive regio- and stereoselectivity, and broad compatibility with various acyl chlorides and alkyltrifluoroborates.
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- 2024
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12. Comparing Oncologic Outcomes of Heat-Based Thermal Ablation and Cryoablation in Patients With T1a Renal Cell Carcinoma: A Population-Based Cohort Study From the SEER Database.
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Guo RQ, Peng JZ, Sun J, and Li YM
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Objective: There is controversy among different guidelines regarding the use of thermal ablation to treat clinical T1a renal cell carcinomas with tumor sizes ranging from 3.1-4 cm. Therefore, we compared oncological outcomes between heat-based thermal ablation (hTA) and cryoablation (CA) in patients with solid T1a renal cell carcinomas, including those with a tumor size ≤3 cm and a tumor size of 3.1-4 cm., Materials and Methods: Within the Surveillance, Epidemiology, and End Results database (2000-2019), we identified patients with clinical T1a renal cell carcinomas that were histologically confirmed and treated with hTA or CA. After propensity score matching using a 1:1 ratio, the overall survival (OS) and cancer-specific survival (CSS) were estimated and compared between the two methods. Cancer-specific mortality (CSM) was also analyzed, considering other-cause mortality as a competing risk., Results: Of the 3513 assessable patients, 1426 (40.6%) and 2087 (59.4%) were treated with hTA and CA, respectively. After propensity score matching, the hTA and CA groups included 1393 and 1393 patients, respectively. hTA was associated with shorter OS than CA with a hazard ratio of 1.17 (95% confidence interval, 1.04-1.32; P = 0.010). The hTA and CA groups did not reveal statistically significant differences in CSS with a hazard ratio of 1.07 (95% confidence interval, 0.76-1.50; P = 0.706). The hTA and CA groups did not show statistically significant differences in CSM ( P = 0.849). However, the hTA group showed a significantly higher other-cause mortality ( P = 0.011)., Conclusion: In patients with clinical stage T1a renal cell carcinomas, hTA was comparable to CA in terms of CSS and CSM. However, hTA resulted in a slightly shorter OS than CA. Large-scale randomized clinical trials are required to obtain more robust evidence., Competing Interests: The authors have no potential conflicts of interest to disclose., (Copyright © 2024 The Korean Society of Radiology.)
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- 2024
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13. Molecularly Woven Cationic Covalent Organic Frameworks for Highly Selective Electrocatalytic Conversion of CO 2 to CO.
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Dagnaw FW, Harrath K, Zheng T, Wu XD, Liu YZ, Li RQ, Xie LH, Li Z, He X, Tong QX, and Jian JX
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Coupling carbon capture with electrocatalytic carbon dioxide reduction (CO
2 R) to yield high-value chemicals presents an appealing avenue for combating climate change, yet achieving highly selective electrocatalysts remains a significant challenge. Herein, two molecularly woven covalent organic frameworks (COFs) are designed, namely CuCOF and CuCOF+ , with copper(I)-bisphenanthroline complexes as building blocks. The metal-organic helical structure unit made the CuCOF and CuCOF+ present woven patterns, and their ordered pore structures and cationic properties enhanced their CO2 adsorption and good conductivity, which is confirmed by gas adsorption and electrochemical analysis. In the electrocatalytic CO2 R measurements, CuCOF+ decorated with extra ethyl groups exhibit a main CO product with selectivity of 57.81%, outperforming the CuCOF with 42.92% CO at the same applied potential of 0.8 VRHE . After loading Pd nanoparticles, CuCOF-Pd and CuCOF+ -Pd performed increased CO selectivity up to 84.97% and 95.45%, respectively. Combining the DFT theoretical calculations and experimental measurements, it is assumed that the molecularly woven cationic COF provides a catalytic microenvironment for CO2 R and ensures efficient charge transfer from the electrode to the catalytic center, thereby achieving high electrocatalytic activity and selectivity. The present work significantly advances the practice of cationic COFs in real-time CO2 capture and highly selective conversion to value-added chemicals., (© 2024 The Author(s). Advanced Science published by Wiley‐VCH GmbH.)- Published
- 2024
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14. Hippocampal warburg effect mediates hydrogen sulfide-ameliorated diabetes-associated cognitive dysfunction: Involving promotion of hippocampal synaptic plasticity.
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Li RQ, Zhu WW, Li C, Zhan KB, Zhang P, Xiao F, Jiang JM, and Zou W
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- Animals, Male, Rats, Rats, Sprague-Dawley, Maze Learning drug effects, Hydrogen Sulfide pharmacology, Hydrogen Sulfide metabolism, Hippocampus metabolism, Hippocampus drug effects, Neuronal Plasticity drug effects, Neuronal Plasticity physiology, Diabetes Mellitus, Experimental complications, Diabetes Mellitus, Experimental metabolism, Cognitive Dysfunction metabolism, Cognitive Dysfunction etiology, Cognitive Dysfunction physiopathology
- Abstract
Our previous studies have reported that hydrogen sulfide (H
2 S) has ability to improve diabetes-associated cognitive dysfunction (DACD), but the exact mechanisms remain unknown. Recent research reveals that Warburg effect is associated with synaptic plasticity which plays a key role in cognition promotion. Herein, the present study was aimed to demonstrate whether hippocampal Warburg effect contributes to H2 S-ameliorated DACD and further explore its potential mechanism. We found that H2 S promoted the hippocampal Warburg effect and inhibited the OxPhos in the hippocampus of STZ-induced diabetic rats. It also improved the hippocampal synaptic plasticity in STZ-induced diabetic rats, as evidenced by the change of microstructures and the expression of different key-enzymes. Furthermore, inhibited hippocampal Warburg effect induced by DCA markedly abolished the improvement of H2 S on synaptic plasticity in the hippocampus of STZ-induced diabetic rats. DCA blocked H2 S-attenuated the cognitive dysfunction in STZ-induced diabetic rats, according to the Y-maze, Novel Objective Recognition, and Morris Water Maze tests. Collectively, these findings indicated that the hippocampal Warburg effect mediates H2 S-ameliorated DACD by improving hippocampal synaptic plasticity., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)- Published
- 2024
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15. VEGFD/VEGFR3 signaling contributes to the dysfunction of the astrocyte IL-3/microglia IL-3Rα cross-talk and drives neuroinflammation in mouse ischemic stroke.
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Wang S, Guo Y, Cao RQ, Zhu YM, Qiao SG, Du HP, Liu Y, Xu Y, Zhou XY, Sun L, Lu QX, Schoen I, and Zhang HL
- Abstract
Astrocyte-derived IL-3 activates the corresponding receptor IL-3Rα in microglia. This cross-talk between astrocytes and microglia ameliorates the pathology of Alzheimer's disease in mice. In this study we investigated the role of IL-3/IL-3Rα cross-talk and its regulatory mechanisms in ischemic stroke. Ischemic stroke was induced in mice by intraluminal occlusion of the right middle cerebral artery (MCA) for 60 min followed by reperfusion (I/R). Human astrocytes or microglia subjected to oxygen-glucose deprivation and reoxygenation (OGD/Re) were used as in vitro models of brain ischemia. We showed that both I/R and OGD/Re significantly induced decreases in astrocytic IL-3 and microglial IL-3Rα protein levels, accompanied by pro-inflammatory activation of A1-type astrocytes and M1-type microglia. Importantly, astrocyte-derived VEGFD acting on VEGFR3 of astrocytes and microglia contributed to the cross-talk dysfunction and pro-inflammatory activation of the two glial cells, thereby mediating neuronal cell damage. By using metabolomics and multiple biochemical approaches, we demonstrated that IL-3 supplementation to microglia reversed OGD/Re-induced lipid metabolic reprogramming evidenced by upregulated expression of CPT1A, a rate-limiting enzyme for the mitochondrial β-oxidation, and increased levels of glycerophospholipids, the major components of cellular membranes, causing reduced accumulation of lipid droplets, thus reduced pro-inflammatory activation and necrosis, as well as increased phagocytosis of microglia. Notably, exogenous IL-3 and the VEGFR antagonist axitinib reestablished the cross-talk of IL-3/IL-3Rα, improving microglial lipid metabolic levels via upregulation of CPT1A, restoring microglial phagocytotic function and attenuating microglial pro-inflammatory activation, ultimately contributing to brain recovery from I/R insult. Our results demonstrate that VEGFD/VEGFR3 signaling contributes to the dysfunction of the astrocyte IL-3/microglia IL-3Rα cross-talk and drives pro-inflammatory activation, causing lipid metabolic reprogramming of microglia. These insights suggest VEGFR3 antagonism or restoring IL-3 levels as a potential therapeutic strategy for ischemic stroke., (© 2024. The Author(s), under exclusive licence to Shanghai Institute of Materia Medica, Chinese Academy of Sciences and Chinese Pharmacological Society.)
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- 2024
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16. [Electroacupuncture improves cognitive function by modulating hippocampal lactate-mediated HIF-1α signaling pathway and inhibiting inflammation response in vascular dementia rats].
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Sun W, Chen YH, Song YY, Wu T, Zhao HX, Wang HY, Li JF, Qin RQ, Su XQ, and Han YS
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- Animals, Rats, Male, Humans, Lactic Acid metabolism, NLR Family, Pyrin Domain-Containing 3 Protein metabolism, NLR Family, Pyrin Domain-Containing 3 Protein genetics, Inflammation therapy, Inflammation metabolism, Acupuncture Points, Tumor Necrosis Factor-alpha metabolism, Tumor Necrosis Factor-alpha genetics, Electroacupuncture, Hypoxia-Inducible Factor 1, alpha Subunit metabolism, Hypoxia-Inducible Factor 1, alpha Subunit genetics, Rats, Sprague-Dawley, Hippocampus metabolism, Dementia, Vascular therapy, Dementia, Vascular metabolism, Dementia, Vascular genetics, Dementia, Vascular immunology, Signal Transduction, Cognition, NF-kappa B metabolism, NF-kappa B genetics
- Abstract
Objectives: To observe the effects of electroacupuncture (EA) stimulation of "Sishencong"(EX-HN1) and "Fengchi"(GB20) on lactate (Lac) content, expression of proline hydroxylase 2 (PHD2), hypoxia-inducible factor-1α (HIF-1α)/nuclear transcription factor- κB (NF- κB)/NOD-like receptor thermoprotein structural domain-associated protein 3 (NLRP3) signaling pathway, and inflammatory factors in hippocampal tissue of vascular dementia (VD) rats, so as to explore its mechanisms underlying improvement of VD., Methods: Male SD rats screened by Morris water maze tests were randomly divided into blank control, sham-operation, VD model and EA groups (12 rats in each group). The VD model was replicated using the 4-vessel occlusion (VO) method. EA (2 Hz, 1 mA) was applied to EX-HN1 and bilateral GB20 for 30 min, once daily for consecutive 21 days. Morris water maze test was employed to test the rat's memory learning ability before and after modeling and after the intervention. The hippocampal tissue was sampled for observing histopathologic changes with H.E. staining;and detecting Lac content with colorimetric method, and the contents of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, and IL-18 (also in serum) by using ELISA, respectively. The immunoactivity levels of PHD2, HIF-1α, and p-NF-κB p65 in hippocampal tissue were detected by immunohistochemistry, and the expression levels of PHD2, HIF-1α, NF-κB p65, p-NF-κB p65 and NLRP3 proteins in hippocampal tissue were detected by Western blot., Results: Compared with the blank control and sham-operation groups, the escaping latency, Lac content in hippocampus, the TNF-α, IL-1β, and IL-18 contents in both hippocampus and serum, the immunoactivity of HIF-1α and p-NF-κB p65 and expression levels of HIF-1α, NF-κB p65, p-NF-κB p65, and NLRP3 proteins were significantly increased ( P <0.01), while the number of original platform crossing, and PHD2 immunoactivity and protein expression level were significantly decreased ( P <0.05, P <0.01) in the model group. Following EA intervention, modeling induced increase and decrease of the indexes mentioned above were all reversed in the EA group ( P <0.05, P <0.01). H.E. staining showed disordered arrangement of neurons, uneven cytoplasm stain, blurred nucleolus or disappearance of nucleolus, dilated capillaries, many apoptotic bodies and increased inflammatory cells in the hippocampus tissue of the model group, which was improved to a certain extent in the EA group, including relatively regular arrangement of neurons, reduced apoptotic bodies and inflammatory cells, etc. in the hippocampus., Conclusions: EA stimulation of EX-HN1 and GB20 can improve the cognitive function in VD rats, which may be related to its functions in reducing Lac content, regulating the expression of HIF-1α pathway related proteins, and inhibiting inflammatory responses in the hippocampus tissue.
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- 2024
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17. ITGA3 participates in the pathogenesis of recurrent spontaneous abortion by downregulating ULK1-mediated autophagy to inhibiting trophoblast function.
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Wang RQ, Dai F, Deng Z, Tang L, Liu H, Xia L, and Cheng Y
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Recurrent spontaneous abortion (RSA) is a significant challenge encountered by couples of reproductive ages, with inadequate trophoblast invasion identified as a primary factor in RSA pathogenesis. However, the precise molecular mechanisms through which trophoblast cells dysfunction leads to RSA remain incompletely understood. Research has highlighted the critical role of integrins in embryo implantation and development. While integrin α-3 (ITGA3) is recognized for its promotion of invasion in cancer cells, its involvement in miscarriage remains poorly characterized. This investigation initially assessed ITGA3 expression in villous tissues obtained from RSA patients and induced abortion patients. The findings demonstrated a notable reduction in ITGA3 levels in the villous tissues of RSA patients compared control group. Subsequent in vitro analyses indicated that ITGA3 knockdown inhibited the migration, invasion, and proliferation of trophoblast cells. Through RNA sequencing and subsequent experimentation, it was revealed that ITGA3 regulated ULK1-mediated autophagy to influence trophoblast cells invasion, migration, and proliferation. Furthermore, utilizing a miscarriage animal model, the diminished expression of ITGA3 and ULK1 in the placentas of RSA mice was confirmed. In conclusion, the study findings suggest that the downregulation of ITGA3 suppresses ULK1 expression, consequently impeding autophagy to initiation and impeding trophoblast cells invasion and migration, thereby contributing to the pathological progression of RSA.
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- 2024
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18. A phase 2 trial of gemcitabine plus toripalimab for cisplatin-ineligible patients with recurrent or metastatic nasopharyngeal carcinoma.
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Zou X, Ding X, Feng ZK, Ouyang YF, Li HF, Wen K, Wang ZQ, Liu YP, Liu YL, Zhang WJ, Yang Q, Chen SY, Xie YL, Xie RQ, Lin C, Gu CM, Huang PY, Sun R, Hua YJ, You R, and Chen MY
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- Humans, Male, Female, Middle Aged, Adult, Aged, Neoplasm Metastasis, Gemcitabine, Deoxycytidine analogs & derivatives, Deoxycytidine therapeutic use, Deoxycytidine administration & dosage, Nasopharyngeal Carcinoma drug therapy, Nasopharyngeal Carcinoma pathology, Nasopharyngeal Carcinoma mortality, Cisplatin therapeutic use, Cisplatin adverse effects, Antibodies, Monoclonal, Humanized therapeutic use, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Neoplasm Recurrence, Local drug therapy, Neoplasm Recurrence, Local pathology, Nasopharyngeal Neoplasms drug therapy, Nasopharyngeal Neoplasms pathology
- Abstract
Cisplatin is a cornerstone chemotherapy for nasopharyngeal carcinoma (NPC); however, certain patients are ineligible for cisplatin-based regimens. This phase 2 trial (NCT04405622) evaluated the efficacy and safety of gemcitabine and toripalimab in previously untreated patients with recurrent or metastatic NPC who were either ineligible for cisplatin or had experienced severe adverse events from prior cisplatin-based treatments. Patients received gemcitabine (1,000 mg/m
2 ) and toripalimab (240 mg) every three weeks for six cycles, followed by toripalimab monotherapy for up to two years. The primary endpoint was the incidence of grade ≥3 adverse events, while secondary endpoints included objective response rate (ORR) and overall survival (OS). Of 30 screened patients, 21 were enrolled. No treatment-related fatalities occurred, with the most frequent adverse events being headache and nausea. The ORR was 61.9%, coupled with a disease control rate of 100%. Overall, gemcitabine plus toripalimab demonstrated low toxicity and promising efficacy for this specific patient cohort., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)- Published
- 2024
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19. AHR activation relieves deoxynivalenol-induced disruption of porcine intestinal epithelial barrier functions.
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Hu ZY, Yang SJ, Chang YH, Wang XQ, Liu RQ, Jiang FW, Chen MS, Wang JX, Liu S, Zhu HM, Shi YS, Zhao Y, and Li JL
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Mycotoxins are ubiquitous natural pollutants that pose a serious threat to public health. Deoxynivalenol (DON) as one of the most prominent mycotoxins has a noticeable adverse effect on intestinal barrier function, which depends on the intestinal barrier integrity. However, the potential mechanisms and effective therapeutic strategies remain unclear. Aryl hydrocarbon receptor (AHR) has been implicated in the modulation of intestinal barrier function and inflammation. The study aims to investigate the unique role of AHR in mediating DON-induced intestinal epithelial barrier function. In the current study, we revealed that DON triggered mitochondrial structural damage and functional impairment, leading to oxidative stress and apoptosis in porcine jejunal epithelial cells (IPEC-J2). DON altered the integrity of IPEC-J2 cells by disrupting the distribution and function of tight junction proteins. Additionally, DON activated TNF-α/NF-κB/MLCK signaling pathway, thereby eliciting inflammatory response. Notably, DON inhibited AHR nuclear translocation and attenuated xenobiotic response element promoter activity and its target genes. However, overexpression of AHR mitigated DON-induced disruption of intestinal epithelial barrier functions by suppressing TNF-α/NF-κB/MLCK pathway in IPEC-J2 cells. Our findings indicate that AHR regulates intestinal epithelial barrier function and therefore is a novel therapeutic molecule for intestinal disorders., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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20. The rheumatoid arthritis gut microbial biobank reveals core microbial species that associate and effect on host inflammation and autoimmune responses.
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Huang HJ, Liu C, Sun XW, Wei RQ, Liu LW, Chen HY, Abdugheni R, Wang CY, Wang XM, Jiang H, Niu HY, Feng LJ, He JH, Jiang Y, Zhao Y, Wang YL, Shu Q, Bi MX, Zhang L, Liu B, and Liu SJ
- Abstract
Gut microbiota dysbiosis has been implicated in rheumatoid arthritis (RA) and influences disease progression. Although molecular and culture-independent studies revealed RA patients harbored a core microbiome and had characteristic bacterial species, the lack of cultured bacterial strains had limited investigations on their functions. This study aimed to establish an RA-originated gut microbial biobank (RAGMB) that covers and further to correlates and validates core microbial species on clinically used and diagnostic inflammation and immune indices. We obtained 3200 bacterial isolates from fecal samples of 20 RA patients with seven improved and 11 traditional bacterial cultivation methods. These isolates were phylogenetically identified and selected for RAGMB. The RAGMB harbored 601 bacterial strains that represented 280 species (including 43 novel species) of seven bacterial phyla. The RAGMB covered 93.2% at species level of medium- and high-abundant (relative abundances ≥0.2%) RA gut microbes, and included four rare species of the phylum Synergistota . The RA core gut microbiome was defined and composed of 20 bacterial species. Among these, Mediterraneibacter tenuis and Eubacterium rectale were two species that statistically and significantly correlated with clinically used diagnostic indices such as erythrocyte sedimentation rate (ESR) and IL-10. Thus, M. tenuis and E. rectale were selected for experimental validation using DSS-treated and not DSS-treated mice model. Results demonstrated both M. tenuis and E. rectale exacerbated host inflammatory responses, including shortened colon length and increased spleen weight, decreased IL-10 and increased IL-17A levels in plasma. Overall, we established the RAGMB, defined the RA core microbiome, correlated and demonstrated core microbial species effected on host inflammatory and immune responses. This work provides diverse gut microbial resources for future studies on RA etiology and potential new targets for new biomedical practices., Competing Interests: The authors declare no conflict of interest., (© 2024 The Author(s). iMeta published by John Wiley & Sons Australia, Ltd on behalf of iMeta Science.)
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- 2024
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21. [Thyroid Hormone Resistance Syndrome Complicated With Papillary Thyroid Carcinoma and Madelung's Disease:Report of One Case].
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Ma XH, Liu RQ, Chen X, Zhao RX, He Q, and Dong M
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- Humans, Female, Carcinoma complications, Adult, Male, Middle Aged, Thyroid Neoplasms complications, Thyroid Neoplasms diagnosis, Thyroid Cancer, Papillary complications, Thyroid Cancer, Papillary diagnosis, Thyroid Hormone Resistance Syndrome complications, Thyroid Hormone Resistance Syndrome diagnosis, Thyroid Hormone Resistance Syndrome genetics, Carcinoma, Papillary complications, Lipomatosis, Multiple Symmetrical complications, Lipomatosis, Multiple Symmetrical diagnosis
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Thyroid hormone resistance syndrome complicated with papillary thyroid cancer is clinically rare.Madelung's disease is a rare disorder of lipid metabolism.We analyzed the clinical data of a case of thyroid hormone resistance syndrome complicated with papillary thyroid carcinoma and Madelung's disease,performed whole-exon sequencing for the patient's peripheral blood samples,and retrospectively analyzed the relevant literature.This review is expected to provide experience for clinical diagnosis and treatment.
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- 2024
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22. Editorial Expression of Concern: Role of BRCA1 in heat shock response.
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Ma YX, Fan S, Xiong J, Yuan RQ, Meng Q, Gao M, Goldberg ID, Fuqua SA, Pestell RG, and Rosen EM
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- 2024
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23. Corrigendum to "Salvianolic acid A improve mitochondrial respiration and cardiac function via inhibiting apoptosis pathway through CRYAB in diabetic cardiomyopathy" [Biomed. Pharmacother. (2023) 160 114382].
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Gong DF, Sun SC, Wang RR, Dawuti A, Kong DW, Liu RQ, Du LD, Wang SB, Lu Y, Yuan TY, Du GH, and Fang LH
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- 2024
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24. Leveraging Pretrained Transformers for Efficient Segmentation and Lesion Detection in Cone-Beam Computed Tomography Scans.
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Chen RQ, Lee Y, Yan H, Mupparapu M, Lure F, Li J, and Setzer FC
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- Humans, Neural Networks, Computer, Sensitivity and Specificity, Artificial Intelligence, Cone-Beam Computed Tomography methods
- Abstract
Introduction: Cone-beam computed tomography (CBCT) is widely used to detect jaw lesions, although CBCT interpretation is time-consuming and challenging. Artificial intelligence for CBCT segmentation may improve lesion detection accuracy. However, consistent automated lesion detection remains difficult, especially with limited training data. This study aimed to assess the applicability of pretrained transformer-based architectures for semantic segmentation of CBCT volumes when applied to periapical lesion detection., Methods: CBCT volumes (n = 138) were collected and annotated by expert clinicians using 5 labels - "lesion," "restorative material," "bone," "tooth structure," and "background." U-Net (convolutional neural network-based) and Swin-UNETR (transformer-based) models, pretrained (Swin-UNETR-PRETRAIN), and from scratch (Swin-UNETR-SCRATCH), were trained with subsets of the annotated CBCTs. These models were then evaluated for semantic segmentation performance using the Sørensen-Dice coefficient (DICE), lesion detection performance using sensitivity and specificity, and training sample size requirements by comparing models trained with 20, 40, 60, or 103 samples., Results: Trained with 103 samples, Swin-UNETR-PRETRAIN achieved a DICE of 0.8512 for "lesion," 0.8282 for "restorative materials," 0.9178 for "bone," 0.9029 for "tooth structure," and 0.9901 for "background." "Lesion" DICE was statistically similar between Swin-UNETR-PRETRAIN trained with 103 and 60 images (P > .05), with the latter achieving 1.00 sensitivity and 0.94 specificity in lesion detection. With small training sets, Swin-UNETR-PRETRAIN outperformed Swin-UNETR-SCRATCH in DICE over all labels (P < .001 [n = 20], P < .001 [n = 40]), and U-Net in lesion detection specificity (P = .006 [n = 20], P = .031 [n = 40])., Conclusions: Transformer-based Swin-UNETR architectures allowed for excellent semantic segmentation and periapical lesion detection. Pretrained, it may provide an alternative with smaller training datasets compared to classic U-Net architectures., (Copyright © 2024 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.)
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- 2024
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25. Development and validation of a stromal-immune signature to predict prognosis in intrahepatic cholangiocarcinoma.
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Ye YH, Xin HY, Li JL, Li N, Pan SY, Chen L, Pan JY, Hu ZQ, Wang PC, Luo CB, Sun RQ, Fan J, Zhou J, Zhou ZJ, and Zhou SL
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- Humans, Female, Male, Middle Aged, Prognosis, Aged, Stromal Cells metabolism, Stromal Cells pathology, Biomarkers, Tumor metabolism, Biomarkers, Tumor analysis, Antigens, CD metabolism, Cell Adhesion Molecules metabolism, GPI-Linked Proteins metabolism, GPI-Linked Proteins analysis, Collagen metabolism, Adult, Tumor Microenvironment, Immunohistochemistry, Cholangiocarcinoma pathology, Cholangiocarcinoma diagnosis, Cholangiocarcinoma mortality, Cholangiocarcinoma immunology, Bile Duct Neoplasms pathology, Bile Duct Neoplasms diagnosis, Bile Duct Neoplasms mortality, Actins metabolism
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Backgrounds/aims: Intrahepatic cholangiocarcinoma (ICC) is a highly desmoplastic tumor with poor prognosis even after curative resection. We investigated the associations between the composition of the ICC stroma and immune cell infiltration and aimed to develop a stromal-immune signature to predict prognosis in surgically treated ICC., Methods: We recruited 359 ICC patients and performed immunohistochemistry to detect α-smooth muscle actin (α-SMA), CD3, CD4, CD8, Foxp3, CD68, and CD66b. Aniline was used to stain collagen deposition. Survival analyses were performed to detect prognostic values of these markers. Recursive partitioning for a discrete-time survival tree was applied to define a stromal-immune signature with distinct prognostic value. We delineated an integrated stromal-immune signature based on immune cell subpopulations and stromal composition to distinguish subgroups with different recurrence-free survival (RFS) and overall survival (OS) time., Results: We defined four major patterns of ICC stroma composition according to the distributions of α-SMA and collagen: dormant (α-SMAlow/collagenhigh), fibrogenic (α-SMAhigh/collagenhigh), inert (α-SMAlow/collagenlow), and fibrolytic (α-SMAhigh/collagenlow). The stroma types were characterized by distinct patterns of infiltration by immune cells. We divided patients into six classes. Class I, characterized by high CD8 expression and dormant stroma, displayed the longest RFS and OS, whereas Class VI, characterized by low CD8 expression and high CD66b expression, displayed the shortest RFS and OS. The integrated stromal-immune signature was consolidated in a validation cohort., Conclusion: We developed and validated a stromal-immune signature to predict prognosis in surgically treated ICC. These findings provide new insights into the stromal-immune response to ICC.
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- 2024
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26. Ingenane-type diterpenoids inhibit non-small cell lung cancer cells by regulating SRC/PI3K/Akt pathway.
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Wang XY, Wang YJ, Hou ZL, Guo BW, Wang RQ, Liu Q, Yao GD, and Song SJ
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- Humans, Cell Line, Tumor, src-Family Kinases metabolism, Apoptosis drug effects, Antineoplastic Agents, Phytogenic pharmacology, Antineoplastic Agents, Phytogenic chemistry, Cell Proliferation drug effects, Diterpenes pharmacology, Diterpenes chemistry, Carcinoma, Non-Small-Cell Lung drug therapy, Carcinoma, Non-Small-Cell Lung metabolism, Proto-Oncogene Proteins c-akt metabolism, Phosphatidylinositol 3-Kinases metabolism, Signal Transduction drug effects, Molecular Docking Simulation, Lung Neoplasms drug therapy, Lung Neoplasms metabolism, Euphorbia chemistry
- Abstract
Ingenane-type diterpenoids (ITDs) are distinct components of plants belonging to the genus Euphorbia . These compounds have significant cytotoxic effects on non-small cell lung cancer (NSCLC) cells. However, the underlying molecular mechanism has yet to be reported. To explore the mechanism of the anticancer effect of ITDs, we carried out a network pharmacology prediction study. PPI network suggested that SRC and PI3K had high levels of interaction. In addition, KEGG analysis revealed that these common targets were significantly enriched in the PI3K/Akt signalling pathway. 13-oxyingenol-dodecanoate (13OD) was used for validation after the biological evaluation of some ITDs against NSCLC cells. It demonstrated that 13OD could significantly inhibit the growth of NSCLC cells by inducing apoptosis. The results from molecular docking and Western blotting showed that 13OD interacted with SRC and PI3K and down-regulated the SRC/PI3K/Akt signalling pathway in NSCLC cells. This study provided the underlying mechanism of ITDs against NSCLC.
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- 2024
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27. Tauroursodeoxycholic acid targets HSP90 to promote protein homeostasis and extends healthy lifespan.
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Liu JY, Wang Y, Guo Y, Zheng RQ, Wang YY, Shen YY, Liu YH, Cao AP, Wang RB, Xie BY, Jiang S, Han QY, Chen J, Dong FT, He K, Wang N, Pan X, Li T, Zhou T, Li AL, Xia Q, and Zhang WN
- Abstract
As the elderly population expands, the pursuit of therapeutics to reduce morbidity and extend lifespan has become increasingly crucial. As an FDA-approved drug for chronic cholestatic liver diseases, tauroursodeoxycholic acid (TUDCA), a natural bile acid, offers additional health benefits beyond liver protection. Here, we show that TUDCA extends the lifespan and healthspan of C. elegans. Importantly, oral supplementation of TUDCA improves fitness in old mice, including clinically relevant phenotypes, exercise capacity and cognitive function. Consistently, TUDCA treatment drives broad transcriptional changes correlated with anti-aging characteristics. Mechanistically, we discover that TUDCA targets the chaperone HSP90 to promote its protein refolding activity. This collaboration further alleviates aging-induced endoplasmic reticulum (ER) stress and facilitates protein homeostasis, thus offering resistance to aging. In summary, our findings uncover new molecular links between an endogenous metabolite and protein homeostasis, and propose a novel anti-aging strategy that could improve both lifespan and healthspan., (© 2024. Science China Press.)
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- 2024
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28. A novel arterial coupler with non-return snap-fit connection approach optimized arterial end-to-end anastomotic technique: An experimental study.
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Guo HB, Wang MF, Yin RQ, and Zhi KK
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Purpose: Hand-sewn anastomosis as the gold standard of vascular anastomosis cannot fully meet the requirements of vascular anastomosis in speed and quality. Various vascular couplers have been developed to ameliorate this situation. Most of them are mainly used for venous anastomosis rather than arterial anastomosis, even though it is generally acknowledged that in almost all operations involving vascular reconstruction, it is the arteries that need to be anastomosed faster and more accurately and not the veins. A dedicated device is needed for creating arterial anastomosis in an easy, timesaving, less damaging but reliable procedure. Therefore, we plan to develop a novel arterial coupler device and test pre-clinical safety and effectiveness., Methods: In this cohort study, the rationality of this novel arterial coupler was preliminarily tested by finite element analysis before it was manufactured. Several factors restrict the use of vascular couplers in arterial anastomosis, such as arterial eversion, fixation, etc. The manufactured arterial couplers underwent in vitro and in vivo experiments. In vitro, isolated arteries of beagles were anastomosed with the assistance of an arterial coupler, and the anastomosed arteries were evaluated through anti-traction tests. In animal experiments, the bilateral femoral arteries of 5 beagles served as a control group. After dissection, the femoral artery on one side was randomly selected to be anastomosed with a quick arterial coupler (QAC) (QAC group), and the femoral artery on the other side was anastomosed by the same person using an end-to-end suture technique with a 6-0 Prolene suture (suture group). The bilateral femoral arteries of 5 beagles were used for coupler-assisted anastomosis and hand-sewn anastomosis in vivo, respectively. Success rate, blood loss, anastomotic time, clamp time, total operation time, and patency rate were recorded. The patency of anastomosed arteries was assessed using vascular Doppler ultrasound, electromagnetic flowmeter, and pathological examination (6 weeks after surgery)., Results: As a novel arterial coupler, QAC was successfully designed and manufactured by using poly lactic-co-glycolic acid raw materials and 3-dimensions printing technology. Its rationality was preliminarily tested through finite element analysis and related mechanical analysis methods. The isolated arteries were successfully anastomosed with the assistance of QAC in vitro testing, which showed good anti-traction properties. In animal studies, QAC-assisted arterial anastomosis has superior profiles compared to hand-sewn anastomosis in anastomotic time (7.80 ± 1.41 vs. 16.38 ± 1.04 min), clamp time (8.80 ± 1.41 vs. 14.14 ± 1.57 min), and total operation time (46.64 ± 2.38 vs. 51.96 ± 3.65 min). The results of electromagnetic flowmeter, vascular Doppler ultrasound, and pathological examination showed that QAC-assisted anastomotic arteries were superior to hand-sewn arteries in terms of postoperative blood flow (16.86 ± 3.93 vs. 10.36 ± 0.92 mL/min) and vascular patency in 6 weeks after surgery., Conclusion: QAC is a well-designed and easily maneuverable device specialized for end-to-end arterial anastomosis. Application of this device may decrease thermal ischemia time and improve the patency of anastomotic arteries, thus, improving outcomes., Competing Interests: Declaration of competing interest No conflicts of interest, financial or otherwise, are declared by the authors., (Copyright © 2024. Published by Elsevier B.V.)
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- 2024
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29. Modern technology-based exploration of mechanism of traditional Chinese medicine in prevention and treatment of gastric cancer.
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Li DH and Feng RQ
- Abstract
This review comments on the article "To explore the mechanism of Yigong San anti-gastric cancer and immune regulation". We are interested that the article applied network pharmacology and bioinformatics techniques to elucidate the mechanism of action of Yigong Sang, a traditional Chinese medicine (TCM), in the treatment of gastric cancer (GC). The mechanism of action of Yigong Sang in the treatment of GC has not yet been elucidated because it is composed of multiple Chinese medicines with multiple components and multiple targets. The emergence of network pharmacology and bioinformatics analysis helps explain the mechanism of action of TCM in preventing and treating GC, and provides a possibility for TCM to transform from empirical to evidence-based medicine. This is of great significance for the application of TCM in oncology, new drug development, formula optimization, and the improvement of clinical efficacy., Competing Interests: Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article., (©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.)
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- 2024
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30. Burden of non-communicable diseases attributable to high temperature in a changing climate from 1990 to 2019: a global analysis.
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Zhang JD, Cheng XF, Min SH, Guo RQ, Wang RN, He YT, Zhang YL, and Li B
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- Humans, Male, Female, Middle Aged, Aged, Adult, Young Adult, Adolescent, Disability-Adjusted Life Years, Child, Child, Preschool, Infant, Aged, 80 and over, Cost of Illness, Noncommunicable Diseases mortality, Noncommunicable Diseases epidemiology, Global Burden of Disease trends, Climate Change, Global Health statistics & numerical data, Hot Temperature adverse effects
- Abstract
Background: With global climate change, the health threats of ambient high temperature have received widespread attention. However, latest spatio-temporal patterns of the non-communicable diseases (NCDs) burden attributable to high temperature have not been systematically reported. We aimed to analyze vulnerable areas and populations based on a detailed profile for the NCDs burden attributable to high temperature globally., Methods: We obtained data from the Global Burden of Diseases (GBD) Study (2019) to describe the temporal and spatial patterns of NCDs burden attributable to high temperature globally from 1990-2019. Then we analyzed the differences by region, sex, and socio-demographic index (SDI). Finally, the age‑period‑cohort (APC) model was utilized to explore the age, period, and cohort effects of NCDs mortality caused by high temperature., Results: In 2019, the number of deaths and Disability-adjusted life years (DALYs) from high-temperature-related NCDs was about 150,000 and 3.4 million globally, of which about 70% were in South Asia and North Africa and Middle East, and the burden was higher in men. Among 204 countries and territories, the highest age-standardized mortality rate (ASMR) and age-standardized DALY rate (ASDR) were observed in Oman and United Arab Emirates, respectively. The global burden showed an upward trend from 1990 to 2019, with an EAPC of 3.66 (95%CI: 3.14-4.18) for ASMR and 3.68 (95%CI: 3.16-4.21) for ASDR. Cardiovascular diseases were the main contributors to the global burden of high-temperature-related NCDs in 2019. The age and period effect in APC model showed an increasing trend globally. There was a significant negative correlation between SDI and both ASMR (r = -0.17) and ASDR (r = -0.20) from 1990 to 2019., Conclusion: There was an increasing trend of the global burden of high-temperature-related NCDs. The burden was likely to be higher in males and the elderly, as well as in countries and regions with less economically and socially developed and in tropical climates. Surveillance and prevention measures should be implemented with a focus on these vulnerable areas and susceptible populations., (© 2024. The Author(s).)
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- 2024
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31. Novel Strategy for Human Deep Vein Thrombosis Diagnosis Based on Metabolomics and Stacking Machine Learning.
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Cao J, An GS, Li RQ, Hou ZJ, Li J, Jin QQ, Du QX, and Sun JH
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- Humans, Gas Chromatography-Mass Spectrometry, Chromatography, Liquid, Male, Middle Aged, Female, Venous Thrombosis diagnosis, Venous Thrombosis metabolism, Venous Thrombosis blood, Metabolomics methods, Machine Learning
- Abstract
Deep vein thrombosis (DVT) is a serious health issue that often leads to considerable morbidity and mortality. Diagnosis of DVT in a clinical setting, however, presents considerable challenges. The fusion of metabolomics techniques and machine learning methods has led to high diagnostic and prognostic accuracy for various pathological conditions. This study explored the synergistic potential of dual-platform metabolomics (specifically, gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS)) to expand the detection of metabolites and improve the precision of DVT diagnosis. Sixty-one differential metabolites were identified in serum from DVT patients: 22 from GC-MS and 39 from LC-MS. Among these, five key metabolites were highlighted by SHapley Additive exPlanations (SHAP)-guided feature engineering and then used to develop a stacking diagnostic model. Additionally, a user-friendly interface application system was developed to streamline and automate the application of the diagnostic model, enhancing its practicality and accessibility for clinical use. This work showed that the integration of dual-platform metabolomics with a stacking machine learning model enables faster and more accurate diagnosis of DVT in clinical environments.
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- 2024
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32. Intermolecular Regioselective Alkylarylation of Vinylarenes via Photoredox/Nickel Dual Catalysis.
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Pan XH, Hou YP, Shi CX, Wang YP, Niu RQ, and Guo L
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A novel photoredox/nickel dual catalytic intermolecular alkylarylation of vinylarenes with tertiary and secondary alkyltrifluoroborates and aryl bromides is described, which affords 1,1-diarylalkane frameworks that are found in various natural products as well as functionalized molecules in good to excellent yield and regioselectivity through a radical relay process. Notably, this redox-neutral reaction could proceed efficiently with good tolerance of various substrates, including a great diversity of commercially available (hetero)aryl bromides, alkyltrifluoroborates, and vinylarenes.
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- 2024
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33. Evaluating Docking Site Local Hematoma Formation and Blood Flow on its Healing Using the Accordion Technique at the End of Tibial Bone Transport.
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Wang D, Liu SH, He GY, Zhang Z, Li J, Zhang RQ, Shi JJ, Jia YW, Qiao HY, Liu H, Wang BN, Qin SH, and Zhang YH
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- Humans, Male, Female, Middle Aged, Retrospective Studies, Adult, Fracture Healing physiology, Ultrasonography, Doppler, Color, Tibial Fractures surgery, Tibial Fractures physiopathology, Tibial Fractures diagnostic imaging, Tibia blood supply, Tibia diagnostic imaging, Fractures, Ununited surgery, Fractures, Ununited physiopathology, Regional Blood Flow physiology, Hematoma diagnostic imaging, Hematoma physiopathology
- Abstract
Objective: At present, due to the lack of early observation methods, the effect of the 'accordion' technique on the treatment of nonunion of the docking site varies greatly. In this study, color Doppler ultrasound was used to observe the docking site's local changes and investigate the relationship between local microenvironment changes and bone healing after the accordion technique., Methods: 30 patients with tibial bone transport treated at the Department of Orthopedics, Second Hospital of Shanxi Medical University, from May 2018 to June 2022, were analyzed retrospectively. Paired-sample t-tests were used for data that conformed to a normal distribution, and paired rank-sum tests were used for before-and-after comparisons that did not conform to a normal distribution. There were 26 males and 4 females, aged 47.3 ± 11.7 years. Before bone transport, the defect gap between tibial bone ends was 6.80 ± 3.61 cm. The steps of the accordion technique were as follows: compression for 7 days, ultrasonic study of the microenvironment at the docking site, distraction for 12 days, latency for 7 days, compression for 14 days, then static fixation and radiological study until complete bone healing. Ultrasound was used to detect the size of the hematoma after 7 days of pressure, and the changes in blood flow before and after the 'accordion' operation., Results: All patients were followed up for 11.9 ± 1.9 months. At the last follow-up, 22 patients achieved bone healing at the docking site after the treatment of the 'accordion' technique. There was a linear negative correlation between the size of the hematoma and the time of bone healing at the docking site (r = -0.639, p < 0.01). According to the Paley healing criteria, 18 of the 22 patients were excellent, and 4 patients were good., Conclusion: Hematoma is necessary for the 'accordion' technique's success in the treatment of nonunion. The size of the hematoma is negatively related to the time of bone healing. The 'accordion' technique can increase the blood flow of tissue around the docking site. Ultrasound can be used to monitor the changes in the microenvironment at the docking site during the 'accordion' technique and guide the exact plan and prognosis of the 'accordion' technique., (© 2024 The Author(s). Orthopaedic Surgery published by Tianjin Hospital and John Wiley & Sons Australia, Ltd.)
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- 2024
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34. Natriuretic peptide receptor-C perturbs mitochondrial respiration in white adipose tissue.
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Li SJ, Wei JQ, Kang YY, Wang RQ, Rong WW, Zhao JJ, Deng QW, Gao PJ, Li XD, and Wang JG
- Subjects
- Animals, Mice, Male, Mice, Knockout, Mice, Inbred C57BL, Cell Respiration, Diet, High-Fat adverse effects, Obesity metabolism, Obesity genetics, Adipose Tissue, White metabolism, Receptors, Atrial Natriuretic Factor metabolism, Receptors, Atrial Natriuretic Factor genetics, Mitochondria metabolism
- Abstract
Natriuretic peptide receptor-C (NPR-C) is highly expressed in adipose tissues and regulates obesity-related diseases; however, the detailed mechanism remains unknown. In this research, we aimed to explore the potential role of NPR-C in cold exposure and high-fat/high-sugar (HF/HS) diet-induced metabolic changes, especially in regulating white adipose tissue (WAT) mitochondrial function. Our findings showed that NPR-C expression, especially in epididymal WAT (eWAT), was reduced after cold exposure. Global Npr3 (gene encoding NPR-C protein) deficiency led to reduced body weight, increased WAT browning, thermogenesis, and enhanced expression of genes related to mitochondrial biogenesis. RNA-sequencing of eWAT showed that Npr3 deficiency enhanced the expression of mitochondrial respiratory chain complex genes and promoted mitochondrial oxidative phosphorylation in response to cold exposure. In addition, Npr3 KO mice were able to resist obesity induced by HF/HS diet. Npr3 knockdown in stromal vascular fraction (SVF)-induced white adipocytes promoted the expression of proliferator-activated receptor gamma coactivator 1α (PGC1α), uncoupling protein one (UCP1), and mitochondrial respiratory chain complexes. Mechanistically, NPR-C inhibited cGMP and calcium signaling in an NPR-B-dependent manner but suppressed cAMP signaling in an NPR-B-independent manner. Moreover, Npr3 knockdown induced browning via AKT and p38 pathway activation, which were attenuated by Npr2 knockdown. Importantly, treatment with the NPR-C-specific antagonist, AP-811, decreased WAT mass and increased PGC-1α, UCP1, and mitochondrial complex expression. Our findings reveal that NPR-C deficiency enhances mitochondrial function and energy expenditure in white adipose tissue, contributing to improved metabolic health and resistance to obesity., Competing Interests: Conflict of interest The authors declare that they have no conflict of interest with the contents of this article., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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35. Exploring auditory temporal resolution and dichotic listening skills among individuals with type 2 diabetes mellitus.
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Hu XJ, Lau CC, and Ruan RQ
- Subjects
- Humans, Male, Female, Middle Aged, Cross-Sectional Studies, Case-Control Studies, Adult, Time Factors, Acoustic Stimulation, Auditory Perception, Auditory Threshold, Aged, Speech Perception, Hearing, Diabetes Mellitus, Type 2 physiopathology, Diabetes Mellitus, Type 2 diagnosis, Diabetes Mellitus, Type 2 blood, Diabetes Mellitus, Type 2 psychology, Dichotic Listening Tests
- Abstract
The study aimed to explore the auditory temporal resolution and dichotic listening skills in patients with type 2 diabetes mellitus (T2DM) and identify associated health-related factors. Using a cross-sectional design, 87 adults with T2DM and 48 non-diabetic controls, all with normal hearing, participated. The two central auditory processing (CAP) skills were assessed through the Gaps-In-Noise (GIN) and Dichotic-Digits Listening (DDL) tests. T2DM participants underwent blood tests to measure various health-related factors. In the GIN test, the shortest gap threshold (GapTh) obtained across both ears was significantly higher in the diabetic group (9.1 ± 2.4 ms) compared to the non-diabetic group (7.5 ± 1.5 ms), and the score of correctly identified gaps (GapSc) in the diabetic group (45±11 %) was significantly lower than GapSc in the non-diabetic group (52±9 %), p < 0.001. In the DDL test, the free-recall score (73.8 ± 18.5 %) across both ears and the right-ear advantage (-1.3 ± 20.6 %) in the diabetic group were significantly lower than the free-recall score (85.8 ± 11.9 %) and right-ear advantage (6.9 ± 11.9 %) in the non-diabetic group, p < 0.005. Furthermore, the duration of diabetes, eGFR level, retinopathy, carotid plaque, fasting blood glucose level, and HDL-C (good cholesterol) level were factors significantly associated with performances in the GIN and/or DDL tests for T2DM participants. In conclusion, individuals with T2DM are at risk of reduced auditory processing skills in temporal resolution and dichotic listening, impacting their speech understanding. Six health-related factors were identified as significantly associated with CAP skills in T2DM patients., Competing Interests: Declaration of competing interest None., (Copyright © 2024. Published by Elsevier B.V.)
- Published
- 2024
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36. From aberrant neurodevelopment to neurodegeneration: Insights into the hub gene associated with autism and alzheimer's disease.
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Fu Y, Xie GM, Liu RQ, Xie JL, Zhang J, and Zhang J
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- Humans, Brain, Alzheimer Disease genetics, Autistic Disorder genetics
- Published
- 2024
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37. Annexin A family: A new perspective on the regulation of bone metabolism.
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Xu K, Huang RQ, Wen RM, Yao TT, Cao Y, Chang B, Cheng Y, and Yi XJ
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- Humans, Animals, Osteoporosis metabolism, Annexins metabolism, Annexins genetics, Osteogenesis physiology, Osteogenesis genetics, Cell Differentiation, Osteoblasts metabolism, Osteoclasts metabolism, Bone Resorption metabolism, Bone and Bones metabolism
- Abstract
Osteoblast-mediated bone formation and osteoclast-mediated bone resorption are critical processes in bone metabolism. Annexin A, a calcium-phospholipid binding protein, regulates the proliferation and differentiation of bone cells, including bone marrow mesenchymal stem cells, osteoblasts, and osteoclasts, and has gradually become a marker gene for the diagnosis of osteoporosis. As calcium channel proteins, the annexin A family members are closely associated with mechanical stress, which can target annexins A1, A5, and A6 to promote bone cell differentiation. Despite the significant clinical potential of annexin A family members in bone metabolism, few studies have reported on these mechanisms. Therefore, based on a review of relevant literature, this article elaborates on the specific functions and possible mechanisms of annexin A family members in bone metabolism to provide new ideas for their application in the prevention and treatment of bone diseases, such as osteoporosis., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Masson SAS.. All rights reserved.)
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- 2024
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38. Interfacing data science with cell therapy manufacturing: where we are and where we need to be.
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Wang B, Chen RQ, Li J, and Roy K
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- Humans, Cell- and Tissue-Based Therapy methods, Data Science methods
- Abstract
Although several cell-based therapies have received FDA approval, and others are showing promising results, scalable, and quality-driven reproducible manufacturing of therapeutic cells at a lower cost remains challenging. Challenges include starting material and patient variability, limited understanding of manufacturing process parameter effects on quality, complex supply chain logistics, and lack of predictive, well-understood product quality attributes. These issues can manifest as increased production costs, longer production times, greater batch-to-batch variability, and lower overall yield of viable, high-quality cells. The lack of data-driven insights and decision-making in cell manufacturing and delivery is an underlying commonality behind all these problems. Data collection and analytics from discovery, preclinical and clinical research, process development, and product manufacturing have not been sufficiently utilized to develop a "systems" understanding and identify actionable controls. Experience from other industries shows that data science and analytics can drive technological innovations and manufacturing optimization, leading to improved consistency, reduced risk, and lower cost. The cell therapy manufacturing industry will benefit from implementing data science tools, such as data-driven modeling, data management and mining, AI, and machine learning. The integration of data-driven predictive capabilities into cell therapy manufacturing, such as predicting product quality and clinical outcomes based on manufacturing data, or ensuring robustness and reliability using data-driven supply-chain modeling could enable more precise and efficient production processes and lead to better patient access and outcomes. In this review, we introduce some of the relevant computational and data science tools and how they are being or can be implemented in the cell therapy manufacturing workflow. We also identify areas where innovative approaches are required to address challenges and opportunities specific to the cell therapy industry. We conclude that interfacing data science throughout a cell therapy product lifecycle, developing data-driven manufacturing workflow, designing better data collection tools and algorithms, using data analytics and AI-based methods to better understand critical quality attributes and critical-process parameters, and training the appropriate workforce will be critical for overcoming current industry and regulatory barriers and accelerating clinical translation., (Copyright © 2024. Published by Elsevier Inc.)
- Published
- 2024
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39. Automatic recognition system for concrete cracks with support vector machine based on crack features.
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Wang R, Chen RQ, Guo XX, Liu JX, and Yu HY
- Abstract
Cracks are a common problem in concrete surfaces. With the continuous optimization of machine vision-based inspection systems, effective crack detection and recognition is the core of the entire system. In this study, support vector machine (SVM) was used to distinguish cracks from other regions. To complete the recognition system of the SVM, a framework consisting of an image processing and recognition model was proposed. An algorithm combining the Prewitt operator with the Otsu threshold was proposed for image segmentation. The binary image processed by the new algorithm combined with mathematical morphology can result in a more complete crack zone and fewer interference regions. After the initial parameter extraction, most of the impurity areas were screened by preliminary discrimination, removing 99% of the impurities. This processing step ensured the balance and effectiveness of the samples. To establish an automatic identification model based on SVM with a radial basis function, compactness, occupancy rate, and length-width ratio were selected as input parameters after comparing these three features with all six features of the crack. The recognition accuracy of this system reaches 97.14%, demonstrating that the proposed method is effective and satisfies practical requirements., (© 2024. The Author(s).)
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- 2024
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40. Recent Advances in Immunotherapy for Breast Cancer: A Review.
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Wen QE, Li L, Feng RQ, Li DH, Qiao C, Xu XS, and Zhang YJ
- Abstract
Breast cancer is one of the most common malignant tumors in women in the world, and its incidence is increasing year by year, which seriously threatens the physical and mental health of women. Triple negative breast cancer (TNBC) is a special molecular type of breast cancer in which estrogen receptor, progesterone receptor and human epidermal growth factor receptor-2 are negative. Compared with other molecular types of breast cancer, triple-negative breast cancer (TNBC) has high aggressiveness and metastasis, high recurrence rate, lack of effective therapeutic targets, and usually poor clinical treatment effect. Chemotherapy was the main therapeutic means used in the past. With the advent of the immune era, immunotherapy has made a lot of progress in the treatment of triple-negative breast cancer (TNBC), bringing new therapeutic hope for the treatment of triple-negative breast cancer. This review combines the results of cutting-edge medical research, mainly summarizes the research progress of immunotherapy, and summarizes the main treatment methods of triple-negative breast cancer (TNBC) immunotherapy, including immune checkpoint inhibitors, tumor vaccines, adoptive immunotherapy and the application of traditional Chinese and western medicine. It provides a new idea for the treatment of triple negative breast cancer (TNBC)., Competing Interests: The authors declare that they have no conflicts of interest in this work., (© 2024 Wen et al.)
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- 2024
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41. Longitudinal associations of cardiovascular health and vascular events with incident dementia.
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Ou YN, Kuo K, Yang L, Zhang YR, Huang SY, Chen SD, Deng YT, Guo Y, Zhang RQ, Wu BS, Tan L, Dong Q, Feng JF, Cheng W, and Yu JT
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- Humans, Male, Female, Risk Assessment, Aged, Middle Aged, Time Factors, United Kingdom epidemiology, Incidence, Longitudinal Studies, Prognosis, Dementia, Vascular epidemiology, Dementia, Vascular diagnosis, Prospective Studies, Heart Disease Risk Factors, Risk Factors, Predictive Value of Tests, Cardiovascular Diseases epidemiology, Cardiovascular Diseases diagnosis, Dementia epidemiology, Dementia diagnosis
- Abstract
Introduction: Evidence supporting cardiovascular diseases could increase the risk of dementia remains fragmented. A comprehensive study to illuminate the distinctive associations across different dementia types is still lacking. This study is sought to: (1) determine the clinical validity of Framingham General Cardiovascular Risk Score (FGCRS) for dementia assessment and (2) examine the associations between cardiovascular diseases and the risk of dementia., Methods: A total of 432 079 dementia-free individuals at baseline from UK Biobank were included. Multivariable Cox proportional hazard models were used to investigate the prospective associations for FGCRS and a series of cardiovascular diseases with all-cause dementia (ACD) and its major components, Alzheimer's disease (AD) and vascular dementia (VaD)., Results: During a median follow-up of 110.1 months, 4711 individuals were diagnosed with dementia. FGCRS was associated with increased risks across the dementia spectrum. In stratification analysis, high-risk groups have demonstrated the greatest dementia burdens, particularly to VaD. Over 74 traits, 9 adverse associations, such as chronic ischaemic heart disease (ACD: HR=1.354; AD: HR=1.269; VaD: HR=1.768), atrioventricular block (ACD: HR=1.562; AD: HR=1.556; VaD: HR=2.069), heart failure (ACD: HR=1.639; AD: HR=1.543; VaD: HR=2.141) and hypotension (ACD: HR=2.912; AD: HR=2.361; VaD: HR=3.315) were observed. Several distinctions were also found, with atrial fibrillation, cerebral infarction, and haemorrhage only associated with greater risks of ACD and VaD., Discussion: By identifying distinctive associations between cardiovascular diseases and dementia, this study has established a comprehensive 'mapping' that may untangle the long-standing discrepancy. FGCRS has demonstrated its predictivity beyond cardiovascular diseases burdens, suggesting potential opportunities for implantation., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2024
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42. Baseline Gut Microbiota Was Associated with Long-Term Immune Response at One Year Following Three Doses of BNT162b2.
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Zhang LN, Tan JT, Ng HY, Liao YS, Zhang RQ, Chan KH, Hung IF, Lam TT, and Cheung KS
- Abstract
Background: This study explored neutralizing IgG antibody levels against COVID-19 decline over time post-vaccination. We conducted this prospective cohort study to investigate the function of gut microbiota in the host immune response following three doses of BNT162b2., Methods: Subjects who received three doses of BNT162b2 were recruited from three centers in Hong Kong. Blood samples were obtained before the first dose and at the one-year timepoint for IgG ELISA to determine the level of neutralizing antibody (NAb). The primary outcome was a high immune response (NAb > 600 AU/mL). We performed shotgun DNA metagenomic sequencing on baseline fecal samples to identify bacterial species and metabolic pathways associated with high immune response using linear discriminant analysis effect size analysis., Results: A total of 125 subjects were recruited (median age: 52 years [IQR: 46.2-59.0]; male: 43 [34.4%]), and 20 were regarded as low responders at the one-year timepoint. Streptococcus parasanguinis (log
10 LDA score = 2.38, p = 0.003; relative abundance of 2.97 × 10-5 vs. 0.03%, p = 0.001), Bacteroides stercoris (log10 LDA score = 4.29, p = 0.024; relative abundance of 0.14% vs. 2.40%, p = 0.014) and Haemophilus parainfluenzae (log10 LDA score = 2.15, p = 0.022; relative abundance of 0.01% vs. 0, p = 0.010) were enriched in low responders. Bifidobacterium pseudocatenulatum (log10 LDA score = 2.99, p = 0.048; relative abundance of 0.09% vs. 0.36%, p = 0.049) and Clostridium leptum (log10 LDA score = 2.38, p = 0.014; relative abundance of 1.2 × 10-5 % vs. 0, p = 0.044) were enriched in high responders. S. parasanguinis was negatively correlated with the superpathway of pyrimidine ribonucleotides de novo biosynthesis (log10 LDA score = 2.63), which contributes to inflammation and antibody production. H. parainfluenzae was positively correlated with pathways related to anti-inflammatory processes, including the superpathway of histidine, purine, and pyrimidine biosynthesis (log10 LDA score = 2.14)., Conclusion: Among three-dose BNT162b2 recipients, S. parasanguinis , B. stercoris and H. parainfluenzae were associated with poorer immunogenicity at one year, while B. pseudocatenulatum and C. leptum was associated with a better response.- Published
- 2024
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43. Unleashing the Power of Evolution in Xylanase Engineering: Investigating the Role of Distal Mutation Regulation.
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Wu Y, Yang Y, Lu G, Xiang WL, Sun TY, Chen KW, Lv X, Gui YF, Zeng RQ, Du YK, Fu CH, Huang JW, Chen CC, Guo RT, and Yu LJ
- Subjects
- Molecular Dynamics Simulation, Bacterial Proteins genetics, Bacterial Proteins chemistry, Bacterial Proteins metabolism, Kinetics, Directed Molecular Evolution, Endo-1,4-beta Xylanases chemistry, Endo-1,4-beta Xylanases genetics, Endo-1,4-beta Xylanases metabolism, Enzyme Stability, Mutation, Protein Engineering
- Abstract
The drive to enhance enzyme performance in industrial applications frequently clashes with the practical limitations of exhaustive experimental screening, underscoring the urgency for more refined and strategic methodologies in enzyme engineering. In this study, xylanase Xyl-1 was used as the model, coupling evolutionary insights with energy functions to obtain theoretical potential mutants, which were subsequently validated experimentally. We observed that mutations in the nonloop region primarily aimed at enhancing stability and also encountered selective pressure for activity. Notably, mutations in this region simultaneously boosted the Xyl-1 stability and activity, achieving a 65% success rate. Using a greedy strategy, mutant M4 was developed, achieving a 12 °C higher melting temperature and doubled activity. By integration of spectroscopy, crystallography, and quantum mechanics/molecular mechanics molecular dynamics, the mechanism behind the enhanced thermal stability of M4 was elucidated. It was determined that the activity differences between M4 and the wild type were primarily driven by dynamic factors influenced by distal mutations. In conclusion, the study emphasizes the pivotal role of evolution-based approaches in augmenting the stability and activity of the enzymes. It sheds light on the unique adaptive mechanisms employed by various structural regions of proteins and expands our understanding of the intricate relationship between distant mutations and enzyme dynamics.
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- 2024
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44. The role of Clec11a in bone construction and remodeling.
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Xu K, Huang RQ, Wen R, Yang Y, Cheng Y, and Chang B
- Subjects
- Humans, Animals, Osteogenesis physiology, Bone and Bones metabolism, Bone and Bones physiology, Bone Diseases therapy, Bone Diseases metabolism, Osteoblasts metabolism, Osteoblasts physiology, Cell Differentiation, Lectins, C-Type metabolism, Bone Remodeling physiology
- Abstract
Bone is a dynamically active tissue whose health status is closely related to its construction and remodeling, and imbalances in bone homeostasis lead to a wide range of bone diseases. The sulfated glycoprotein C-type lectin structural domain family 11 member A (Clec11a) is a key factor in bone mass regulation that significantly promotes the osteogenic differentiation of bone marrow mesenchymal stem cells and osteoblasts and stimulates chondrocyte proliferation, thereby promoting longitudinal bone growth. More importantly, Clec11a has high therapeutic potential for treating various bone diseases and can enhance the therapeutic effects of the parathyroid hormone against osteoporosis. Clec11a is also involved in the stress/adaptive response of bone to exercise via mechanical stimulation of the cation channel Pieoz1. Clec11a plays an important role in promoting bone health and preventing bone disease and may represent a new target and novel drug for bone disease treatment. Therefore, this review aims to explore the role and possible mechanisms of Clec11a in the skeletal system, evaluate its value as a potential therapeutic target against bone diseases, and provide new ideas and strategies for basic research on Clec11a and preventing and treating bone disease., 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 © 2024 Xu, Huang, Wen, Yang, Cheng and Chang.)
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- 2024
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45. Three coordination polymers based on 4,4'-bis(2-methylimidazol-1-yl)diphenyl ether: Synthesis, structure and selective fluorescent sensing properties.
- Author
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Xue YS, Tian ZC, Zhang XY, Wang WJ, Dai JH, Chen RQ, Xu XJ, and Wang J
- Abstract
Three CPs [Zn
2 (PDA)2 (BMIOPE)2 ·3H2 O]n (1), [Co(Br-BDC)(BMIOPE)]n (2) and [Co(MIP)(BMIOPE)]n (3) were synthesized by solvothermal method based on dual-ligand strategy (H2 PDA, Br-H2 BDC, BMIOPE and H2 MIP are 1,3-phenylenediacetic acid, 5-bromo-isophthalic acid, 4,4'-bis(2-methylimidazol-1-yl)diphenyl ether and 5-methylisophthalic acid, respectively). Complexes 1 and 3 exhibit twofold parallel interwoven sql nets. Complex 2 is 2D layer structure. The luminescence property investigations showed that complexes 1-3 could act as multi-responsive fluorescent sensors to detect UO2 2+ , Cr2 O7 2- and CrO4 2- and nitrofurantoin (NFT) through fluorescence turn-off process, presenting excellent sensitivity and selectivity. Finally, the possible fluorescent quenching mechanisms of complexes 1-3 toward the above pollutants are also further investigated by employing spectroscopic methods and quantum chemical calculations. The fluorescence lifetime measurements manifest the mechanism of fluorescence quenching is static quenching process., 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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46. Long Noncoding RNA MSL3P1 Regulates CUL3 mRNA Cytoplasmic Transport and Stability and Promotes Lung Adenocarcinoma Metastasis.
- Author
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Shao MM, Li X, Wei RQ, Chen QY, Zhang X, Qiao X, and Li H
- Subjects
- Humans, Animals, Mice, RNA, Messenger genetics, RNA, Messenger metabolism, Male, Cell Line, Tumor, Cytoplasm metabolism, Prognosis, Gene Expression Regulation, Neoplastic, Mice, Nude, Female, Epithelial-Mesenchymal Transition genetics, RNA, Long Noncoding genetics, RNA, Long Noncoding metabolism, Cullin Proteins metabolism, Cullin Proteins genetics, Adenocarcinoma of Lung genetics, Adenocarcinoma of Lung pathology, Adenocarcinoma of Lung metabolism, Lung Neoplasms genetics, Lung Neoplasms pathology, Lung Neoplasms metabolism, Lung Neoplasms secondary, RNA Stability, Neoplasm Metastasis
- Abstract
Lung adenocarcinoma (LUAD) is the most prevalent histological type of lung cancer. Previous studies have reported that specific long noncoding RNAs (lncRNA) are involved in cancer development and progression. The phenotype and mechanism of ENST00000440028, named MSL3P1, an lncRNA referred to as a cancer-testis gene with potential roles in tumorigenesis and progression, have not been reported. MSL3P1 is overexpressed in LUAD tumor tissues, which is significantly associated with clinical characteristics, metastasis, and poor clinical prognosis. MSL3P1 promotes the metastasis of LUAD in vitro and in vivo. The enhancer reprogramming in LUAD tumor tissue is the major driver of the aberrant expression of MSL3P1. Mechanistically, owing to the competitive binding to CUL3 mRNA with ZFC3H1 protein (a protein involved in targeting polyadenylated RNA to exosomes and promoting the degradation of target mRNA), MSL3P1 can prevent the ZFC3H1-mediated RNA degradation of CUL3 mRNA and transport it to the cytoplasm. This activates the downstream epithelial-to-mesenchymal transition signaling pathway and promotes tumor invasion and metastasis. Implications: This study indicates that lncRNA MSL3P1 regulates CUL3 mRNA stability and promotes metastasis and holds potential as a prognostic biomarker and therapeutic target in LUAD., (©2024 American Association for Cancer Research.)
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- 2024
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47. Engineering marine phospholipid nanoliposomes via glycerol-infused proliposomes: Mechanisms, strategies, and versatile applications in scalable food-grade nanoliposome production.
- Author
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Fu DW, Xu H, Sun RQ, Liu XL, Ji Z, Zhou DY, and Song L
- Subjects
- Animals, Particle Size, Euphausiacea chemistry, Liposomes chemistry, Glycerol chemistry, Phospholipids chemistry, Nanoparticles chemistry
- Abstract
This study presents a novel approach using polyol-based proliposome to produce marine phospholipids nanoliposomes. Proliposomes were formulated by blending glycerol with phospholipids across varying mass ratios (2:1 to 1:10) at room temperature. Analysis employing polarized light microscopy, FTIR, and DSC revealed that glycerol disrupted the stacked acyl groups within phospholipids, lowering the phase transition temperature (T
m ). Krill oil phospholipids (KOP) proliposomes exhibited superior performance in nanoliposomes formation, with a mean diameter of 125.60 ± 3.97 nm, attributed to the decreased Tm (-7.64 and 7.00 °C) compared to soybean phospholipids, along with a correspondingly higher absolute zeta potential (-39.77 ± 1.18 mV). The resulting KOP proliposomes demonstrated liposomes formation stability over six months and under various environmental stresses (dilution, thermal, ionic strength, pH), coupled with in vitro absorption exceeding 90 %. This investigation elucidates the mechanism behind glycerol-formulated proliposomes and proposes innovative strategies for scalable, solvent-free nanoliposome production with implications for functional foods and pharmaceutical applications., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)- Published
- 2024
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48. Immunotoxicity and oxidative damage in Litopenaeus vannamei induced by polyethylene microplastics and copper co-exposure.
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Chen YT, Xu RQ, Cheng JW, Singhania RR, Chen CW, Dong CD, and Hsieh SL
- Subjects
- Animals, Superoxide Dismutase metabolism, Gills drug effects, Catalase metabolism, Glutathione Peroxidase metabolism, Penaeidae drug effects, Copper toxicity, Oxidative Stress drug effects, Water Pollutants, Chemical toxicity, Polyethylene toxicity, Microplastics toxicity
- Abstract
This study examines the combined effects of polyethylene microplastics (PE-MP) and copper (Cu
2+ ) on the immune and oxidative response of Litopenaeus vannamei. PE-MP adsorbed with Cu2+ at 2.3, 6.8, and 16.8 ng (g shrimp)-1 ) were injected into L. vannamei. Over 14 days, survival rates were monitored, and immune and oxidative stress parameters were assessed. The results showed that combined exposure to PE-MP and Cu2+ significantly reduced the survival rate and decreased total haemocyte count. Immune-related parameters (phagocytic rate, phenoloxidase and superoxide dismutase (SOD)) and antioxidant-related parameters (SOD, catalase and glutathione peroxidase mRNA and enzyme) also decreased, while respiratory burst activity significantly increased, indicating immune and antioxidant system disruption. Additionally, there was a significant increase in oxidative stress, as measured by malondialdehyde levels. Histopathological analysis revealed severe muscle, hepatopancreas, and gill damage. These results suggest that simultaneous exposure to PE-MP and Cu2+ poses greater health risks to white shrimp., Competing Interests: Declaration of competing interest The authors state that they have no known financial conflicts of interest or personal relationships that could have influenced the work presented in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)- Published
- 2024
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49. Comparing the oncologic outcomes of local tumor destruction vs. local tumor excision vs. partial nephrectomy in T1a solid renal masses: a population-based cohort study from the SEER database.
- Author
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Guo RQ, Zhao PJ, Sun J, and Li YM
- Subjects
- Humans, Female, Male, Middle Aged, Aged, Cohort Studies, Propensity Score, Treatment Outcome, Carcinoma, Renal Cell surgery, Carcinoma, Renal Cell pathology, Carcinoma, Renal Cell mortality, Retrospective Studies, Kaplan-Meier Estimate, Kidney Neoplasms surgery, Kidney Neoplasms pathology, Kidney Neoplasms mortality, Nephrectomy methods, SEER Program
- Abstract
Background: There are few large-scale analyses comparing local tumor destruction (LTD) or local tumor enucleation/excision (LTE) relative to partial nephrectomy (PN) for patients with T1a renal masses in terms of cancer-specific survival (CSS) and overall survival (OS). The authors aimed to compare CSS and OS after LTD versus LTE versus PN., Materials and Methods: Within the Surveillance, Epidemiology, and End Results (SEER) database (2000-2019), the authors identified patients with clinical T1a renal masses and histologically confirmed kidney cancer treated with LTD, LTE, or PN. After 1:1 ratio propensity score matching (PSM), comparisons between the groups were conducted. Kaplan-Meier analysis and log-rank tests were used to compare survival in the matched population., Results: In the overall cohort of 3717 LTD patients versus 1993 LTE patients versus 26 935 PN patients, 77.3% of LTD-treated patients and 74.4% of LTE-treated patients were over 60 years old, while only 50.3% of PN-treated patients were over 60 years old. PN was more strongly associated with CSS [hazard ratio ((HR)=1.276, P <0.001) and OS (HR=1.112, P <0.001)] than was LTD, while PN was less strongly associated with CSS (HR=1.040, P =0.230) and OS (HR=0.888, P =0.002) than was LTE, not only in the PSM cohort but also in the subgroups of patients with a tumor size ≤3 cm and patients with a tumor size of 3.1-4 cm., Conclusions: In clinical T1a solid renal mass patients, LTD was associated with lower CSS and OS than LTE and PN, while LTE demonstrated noninferior CSS and superior OS to PN regardless of tumor size., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.)
- Published
- 2024
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50. Organ-on-a-chip: future of female reproductive pathophysiological models.
- Author
-
Deng ZM, Dai FF, Wang RQ, Deng HB, Yin TL, Cheng YX, and Chen GT
- Subjects
- Female, Humans, Animals, Microfluidics methods, Reproduction, Models, Biological, Microphysiological Systems, Lab-On-A-Chip Devices, Genitalia, Female
- Abstract
The female reproductive system comprises the internal and external genitalia, which communicate through intricate endocrine pathways. Besides secreting hormones that maintain the female secondary sexual characteristics, it also produces follicles and offspring. However, the in vitro systems have been very limited in recapitulating the specific anatomy and pathophysiology of women. Organ-on-a-chip technology, based on microfluidics, can better simulate the cellular microenvironment in vivo, opening a new field for the basic and clinical research of female reproductive system diseases. This technology can not only reconstruct the organ structure but also emulate the organ function as much as possible. The precisely controlled fluidic microenvironment provided by microfluidics vividly mimics the complex endocrine hormone crosstalk among various organs of the female reproductive system, making it a powerful preclinical tool and the future of pathophysiological models of the female reproductive system. Here, we review the research on the application of organ-on-a-chip platforms in the female reproductive systems, focusing on the latest progress in developing models that reproduce the physiological functions or disease features of female reproductive organs and tissues, and highlighting the challenges and future directions in this field., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
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