109 results match your criteria: "Shanghai Key Clinical Center for Metabolic Di[Affiliation]"

Background: With the rising global prevalence of fatty liver disease related to metabolic dysfunction, the association of this common liver condition with chronic kidney disease (CKD) has become increasingly evident. In 2020, the more inclusive term metabolic dysfunction-associated fatty liver disease (MAFLD) was proposed to replace the term non-alcoholic fatty liver disease (NAFLD). The observed association between MAFLD and CKD and our understanding that CKD can be a consequence of underlying metabolic dysfunction support the notion that individuals with MAFLD are at higher risk of having and developing CKD compared with those without MAFLD.

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Background: The impact of cirrhosis and portal hypertension on perioperative outcomes of minimally invasive left lateral sectionectomies remains unclear. We aimed to compare the perioperative outcomes between patients with preserved and compromised liver function (noncirrhotics versus Child-Pugh A) when undergoing minimally invasive left lateral sectionectomies. In addition, we aimed to determine if the extent of cirrhosis (Child-Pugh A versus B) and the presence of portal hypertension had a significant impact on perioperative outcomes.

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Impact of body mass index on perioperative outcomes of laparoscopic major hepatectomies.

Surgery

August 2023

Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital and National Cancer Centre Singapore, Singapore; Surgery Academic Clinical Programme, Duke-National University of Singapore Medical School, Singapore. Electronic address:

Background: Data on the effect of body mass index on laparoscopic liver resections are conflicting. We performed this study to investigate the association between body mass index and postoperative outcomes after laparoscopic major hepatectomies.

Methods: This is a retrospective review of 4,348 laparoscopic major hepatectomies at 58 centers between 2005 and 2021, of which 3,383 met the study inclusion criteria.

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Impact of body mass index on the difficulty and outcomes of laparoscopic left lateral sectionectomy.

Eur J Surg Oncol

August 2023

Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital and National Cancer Centre Singapore, Singapore; Surgery Academic Clinical Programme, Duke-National University of Singapore Medical School, Singapore. Electronic address:

Article Synopsis
  • - The study investigates how body mass index (BMI) affects outcomes after laparoscopic left lateral sectionectomy (L-LLS), revealing that higher BMI levels (greater than 27kg/m²) lead to increased blood loss, longer operative times, and more open conversions during surgery.
  • - A large sample of 2,183 patients from 59 centers worldwide was analyzed, showing that as BMI increases, so do certain negative surgical outcomes, but patient complications also exhibited a "U" shaped relationship—higher rates were seen in both underweight and obese individuals.
  • - The findings suggest that BMI should be considered in evaluating the difficulty of L-LLS procedures and in future assessments of surgical risk and outcomes.
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Article Synopsis
  • Laparoscopic liver resections (LLR) and robotic liver resections (RLR) are effective techniques for treating large liver tumors (≥10 cm), and a multicenter study provides better understanding of their safety and application.
  • A retrospective review of 971 patients from 42 centers between 2002-2020 revealed that 100 underwent RLR and 699 underwent LLR, with a focus on comparing perioperative outcomes.
  • After matching for patient characteristics, the study found no significant differences in key outcomes between RLR and LLR, indicating both methods can be safely used with excellent results for large tumors.
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Apoptosis is a form of regulated cell death (RCD) that involves proteases of the caspase family. Pharmacological and genetic strategies that experimentally inhibit or delay apoptosis in mammalian systems have elucidated the key contribution of this process not only to (post-)embryonic development and adult tissue homeostasis, but also to the etiology of multiple human disorders. Consistent with this notion, while defects in the molecular machinery for apoptotic cell death impair organismal development and promote oncogenesis, the unwarranted activation of apoptosis promotes cell loss and tissue damage in the context of various neurological, cardiovascular, renal, hepatic, infectious, neoplastic and inflammatory conditions.

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Article Synopsis
  • The study aimed to compare outcomes of robotic major hepatectomy (R-MH) versus laparoscopic major hepatectomy (L-MH), exploring whether R-MH offers any advantages.
  • An analysis of 4822 patient cases across 59 centers revealed that R-MH resulted in significantly less blood loss, fewer applications of the Pringle maneuver, and lower rates of conversion to open surgery.
  • Moreover, R-MH showed reduced postoperative morbidity and shorter hospital stays for patients with cirrhosis compared to L-MH, indicating its potential benefits.
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Neural differentiation, synaptic transmission, and action potential propagation depend on membrane sphingolipids, whose metabolism is tightly regulated. Mutations in the ceramide transporter CERT (CERT1), which is involved in sphingolipid biosynthesis, are associated with intellectual disability, but the pathogenic mechanism remains obscure. Here, we characterize 31 individuals with de novo missense variants in CERT1.

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Article Synopsis
  • The study aimed to uncover new genetic risk factors for systemic vasculitis by analyzing genetic data from a large group of patients and healthy controls.
  • Sixteen genetic variants were found to be linked with multiple forms of vasculitis, with 15 being newly identified risk loci that may impact how vasculitis develops through gene regulation.
  • Additionally, the research highlighted drugs that could be repurposed, such as abatacept and ustekinumab, for treating these vasculitides.
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Recapitulating Antioxidant and Antibacterial Compounds into a Package for Tissue Regeneration: Dual Function Materials with Synergistic Effect.

Small

May 2023

Department of Orthopaedics, Key Laboratory of Structural Malformations in Children of Zhejiang Province, Key Laboratory of Orthopaedics of Zhejiang Province, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, P. R. China.

Oxidative damage and infection can prevent or delay tissue repair. Moreover, infection reinforces reactive oxygen species (ROS) formation, which makes the wound's condition even worse. Therefore, the need for antioxidant and antibacterial agents is felt for tissue regeneration.

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Article Synopsis
  • Blood pressure (BP) constantly changes due to environmental and behavioral factors, as well as the body's own regulation mechanisms, and increased BP variability (BPV) can indicate cardiovascular issues and heighten health risks.
  • While BPV was previously seen mostly in research contexts due to mixed evidence, experts are now focusing on its clinical significance and standardizing how it should be assessed.
  • A position paper from the European Society of Hypertension aims to clarify BPV measurement methods and clinical applications, providing practical guidelines for researchers and healthcare professionals to improve BPV management.
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Background: Genetic variants within nearly 1000 loci are known to contribute to modulation of blood lipid levels. However, the biological pathways underlying these associations are frequently unknown, limiting understanding of these findings and hindering downstream translational efforts such as drug target discovery.

Results: To expand our understanding of the underlying biological pathways and mechanisms controlling blood lipid levels, we leverage a large multi-ancestry meta-analysis (N = 1,654,960) of blood lipids to prioritize putative causal genes for 2286 lipid associations using six gene prediction approaches.

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  • Common SNPs may account for 40-50% of human height variation, and this study identifies 12,111 SNPs linked to height from a large sample of 5.4 million individuals.
  • These SNPs cluster in 7,209 genomic segments, encompassing about 21% of the genome and showing varying densities enriched in relevant genes.
  • While these SNPs explain a substantial portion of height variance in European populations (40-45%), their predictive power is lower (10-24%) in other ancestries, suggesting a need for more research to enhance understanding in diverse populations.
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A multi-layer functional genomic analysis to understand noncoding genetic variation in lipids.

Am J Hum Genet

August 2022

Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. Electronic address:

Article Synopsis
  • Researchers studied the genetic connections to blood fats using data from 1.6 million people from different backgrounds to understand why certain fats are higher or lower in the body.
  • They looked at special genes and how they interact in the liver and fat cells, finding that the liver plays a big part in controlling fat levels.
  • Two specific genes, CREBRF and RRBP1, were highlighted as important in understanding how our bodies manage fats due to strong supporting evidence.
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CORE-IBD: A Multidisciplinary International Consensus Initiative to Develop a Core Outcome Set for Randomized Controlled Trials in Inflammatory Bowel Disease.

Gastroenterology

October 2022

Alimentiv Inc, London, Ontario, Canada; Department of Medicine, Division of Gastroenterology, Western University, London, Ontario, Canada; Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada. Electronic address:

Background & Aims: End points to determine the efficacy and safety of medical therapies for Crohn's disease (CD) and ulcerative colitis (UC) are evolving. Given the heterogeneity in current outcome measures, harmonizing end points in a core outcome set for randomized controlled trials is a priority for drug development in inflammatory bowel disease.

Methods: Candidate outcome domains and outcome measures were generated from systematic literature reviews and patient engagement surveys and interviews.

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Over the past few decades, neuroimaging has become a ubiquitous tool in basic research and clinical studies of the human brain. However, no reference standards currently exist to quantify individual differences in neuroimaging metrics over time, in contrast to growth charts for anthropometric traits such as height and weight. Here we assemble an interactive open resource to benchmark brain morphology derived from any current or future sample of MRI data ( http://www.

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The particularly interdisciplinary nature of human microbiome research makes the organization and reporting of results spanning epidemiology, biology, bioinformatics, translational medicine and statistics a challenge. Commonly used reporting guidelines for observational or genetic epidemiology studies lack key features specific to microbiome studies. Therefore, a multidisciplinary group of microbiome epidemiology researchers adapted guidelines for observational and genetic studies to culture-independent human microbiome studies, and also developed new reporting elements for laboratory, bioinformatics and statistical analyses tailored to microbiome studies.

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Autophagy is a core molecular pathway for the preservation of cellular and organismal homeostasis. Pharmacological and genetic interventions impairing autophagy responses promote or aggravate disease in a plethora of experimental models. Consistently, mutations in autophagy-related processes cause severe human pathologies.

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Selenium-GPX4 axis protects follicular helper T cells from ferroptosis.

Nat Immunol

September 2021

The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Brisbane, Australia.

Follicular helper T (T) cells are a specialized subset of CD4 T cells that essentially support germinal center responses where high-affinity and long-lived humoral immunity is generated. The regulation of T cell survival remains unclear. Here we report that T cells show intensified lipid peroxidation and altered mitochondrial morphology, resembling the features of ferroptosis, a form of programmed cell death that is driven by iron-dependent accumulation of lipid peroxidation.

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The current pandemic of coronavirus disease 2019 (COVID-19) has affected >160 million individuals to date, and has caused millions of deaths worldwide, at least in part due to the unclarified pathophysiology of this disease. Identifying the underlying molecular mechanisms of COVID-19 is critical to overcome this pandemic. Metabolites mirror the disease progression of an individual and can provide extensive insights into their pathophysiological significance at each stage of disease.

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The trans-ancestral genomic architecture of glycemic traits.

Nat Genet

June 2021

Exeter Centre of Excellence for Diabetes Research (EXCEED), Genetics of Complex Traits, University of Exeter Medical School, University of Exeter, Exeter, UK.

Article Synopsis
  • Scientists studied people's genetics to learn about traits related to blood sugar, which helps diagnose and monitor type 2 diabetes.
  • Most of the earlier studies only looked at people with European backgrounds, but this research included many more individuals from different backgrounds, finding 242 important genetic spots linked to blood sugar levels.
  • By studying a diverse group of people, they discovered new insights about how diabetes works in the body, helping to uncover different biological processes for each glycemic trait.
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Backgrounds & Aims: Primary biliary cholangitis (PBC) is a chronic liver disease in which autoimmune destruction of the small intrahepatic bile ducts eventually leads to cirrhosis. Many patients have inadequate response to licensed medications, motivating the search for novel therapies. Previous genome-wide association studies (GWAS) and meta-analyses (GWMA) of PBC have identified numerous risk loci for this condition, providing insight into its aetiology.

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Follicular helper T (T) cells control antibody responses by supporting antibody affinity maturation and memory formation. Inadequate T function has been found in individuals with ineffective responses to vaccines, but the mechanism underlying T regulation in vaccination is not understood. Here, we report that lower serum levels of the metabolic hormone leptin associate with reduced vaccine responses to influenza or hepatitis B virus vaccines in healthy populations.

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