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Diabetic cardiomyopathy (DCM), a severe complication of diabetes, is characterized by mitochondrial dysfunction, oxidative stress, and DNA damage. Despite its severity, the intrinsic factors governing cardiomyocyte damage in DCM remain unclear. It is hypothesized that impaired iron-sulfur (Fe-S) cluster synthesis plays a crucial role in the pathogenesis of DCM. Reduced S-sulfhydration of cysteine desulfurase (NFS1) is a novel mechanism that contributes to mitochondrial dysfunction and PARthanatos in DCM. Mechanistically, hydrogen sulfide (HS) supplementation restores NFS1 S-sulfhydration at cysteine 383 residue, thereby enhancing Fe-S cluster synthesis, improving mitochondrial function, increasing cardiomyocyte viability, and alleviating cardiac damage. This study provides novel insights into the interplay between Fe-S clusters, mitochondrial dysfunction, and PARthanatos, highlighting a promising therapeutic target for DCM and paving the way for potential clinical interventions to improve patient outcomes.
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http://dx.doi.org/10.1002/advs.202406695 | DOI Listing |
Int Immunopharmacol
August 2025
Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China; Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China. Electronic address:
Background: Protein lactylation has been implicated in stress-responsive cellular mechanisms, yet its role in lung transplantation-associated ischemia-reperfusion injury (IRI) remains undefined.
Methods: Transcriptomic profiles from GSE145989 were analyzed through differential expression analysis (limma) and weighted gene co-expression network analysis (WGCNA). Integrating the identified genes with lactylation-related signatures uncovered key lactylation-related genes (LRGs) as potential targets.
Biosens Bioelectron
September 2025
College of Life Sciences, China Jiliang University, Hangzhou, 310018, China. Electronic address:
Glucose sensors are critical analytical devices designed for precise and continuous monitoring of glucose concentrations, playing a pivotal role in healthcare, particularly in diabetes management. Here, we synthesis glucose oxidase (GOx)/Se hydrogel to detect the glucose, thereby generating measurable electrical signals. Further, the transfection of electronic signals rely on the poly(dopamine) (PDA) grid in hydrogel.
View Article and Find Full Text PDFGenome Biol
September 2025
Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.
Background: DNA G-quadruplexes (G4s) are non-canonical secondary structures formed in guanine-rich DNA sequences and play important roles in modulating biological processes through a variety of gene regulatory mechanisms. Emerging G4 profiling allows global mapping of endogenous G4 formation.
Results: Here in this study, we map the G4 landscapes in adult skeletal muscle stem cells (MuSCs), which are essential for injury-induced muscle regeneration.
Carbohydr Polym
November 2025
School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Qingdao Marine Science and Technology Center, Qingdao 266237, China; Key Laboratory of Marine Drugs, Ministry of Education, Qingdao 266003, China; Shandong Key Laboratory of Glycoscience and Glycotherapeutics, Qingdao
Hyaluronic acid (HA), a linear glycosaminoglycan, serves as a key structural constituent of extracellular matrices, participating in diverse biological processes across both normal physiological and pathological contexts. While the gut microbiota exerts a pivotal influence on HA utilization within the human body, current scientific literature indicates a limited understanding of the molecular mechanisms underlying this interaction. In this study, a gut bacterium Enterococcus faecalis F1221 has been isolated, which demonstrated the ability to degrade HA.
View Article and Find Full Text PDFCurr Probl Cardiol
September 2025
Division of Endocrinology, Diabetes and Metabolism, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston.
Nonalcoholic fatty liver disease (NAFLD) and type 2 diabetes mellitus (T2DM) represent interconnected metabolic disorders with multifaceted etiology, demonstrating bidirectional relationships and pronounced associations with cardiovascular diseases (CVDs). Despite extensive research, significant knowledge gaps persist regarding the temporal progression of these comorbidities, optimal screening strategies for high-risk populations, and personalized therapeutic approaches targeting the hepatic-cardiac-metabolic axis simultaneously. Current literature lacks a comprehensive analysis of phenotypic heterogeneity within NAFLD-T2DM-CVD clusters and fails to address sex-specific and ethnic variations in disease progression patterns adequately.
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