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The heart muscle diseases hypertrophic (HCM) and dilated (DCM) cardiomyopathies are leading causes of sudden death and heart failure in young, otherwise healthy, individuals. We conducted genome-wide association studies and multi-trait analyses in HCM (1,733 cases), DCM (5,521 cases) and nine left ventricular (LV) traits (19,260 UK Biobank participants with structurally normal hearts). We identified 16 loci associated with HCM, 13 with DCM and 23 with LV traits. We show strong genetic correlations between LV traits and cardiomyopathies, with opposing effects in HCM and DCM. Two-sample Mendelian randomization supports a causal association linking increased LV contractility with HCM risk. A polygenic risk score explains a significant portion of phenotypic variability in carriers of HCM-causing rare variants. Our findings thus provide evidence that polygenic risk score may account for variability in Mendelian diseases. More broadly, we provide insights into how genetic pathways may lead to distinct disorders through opposing genetic effects.
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http://dx.doi.org/10.1038/s41588-020-00762-2 | DOI Listing |
Crit Rev Food Sci Nutr
September 2025
Hunan Key Laboratory of Deep Processing and Quality Control of Cereals and Oils, State Key Laboratory of Utilization of Woody Oil Resource, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China.
Metabolic dysfunction-associated steatotic liver disease (MASLD) is a condition that results from metabolic disorders. In addition to genetic factors, irregular and high-energy diets may also significantly contribute to its pathogenesis. Dietary habits can profoundly alter the composition of gut microbiota and metabolites.
View Article and Find Full Text PDFBiomol Biomed
September 2025
Clinical Research Directorate, Ignacio Chávez National Institute of Cardiology, Mexico City, Mexico.
Rheumatoid arthritis (RA) is a chronic autoimmune disease in which dysregulated interferon regulatory factor 5 (IRF5) may amplify pro-inflammatory pathways; prior genetic studies of IRF5 single-nucleotide variants (SNVs) in RA are inconsistent across populations and have not included mestizo Mexicans or evaluated rs59110799 in RA. We aimed to test whether four IRF5 SNVs (rs2004640G/T, rs2070197T/C, rs10954213G/A, rs59110799G/T) confer susceptibility to RA in women from Central Mexico. In a case-control study of 239 women with RA and 231 female controls (all self-identified Mexican-Mestizos, ≥3 generations), genotyping was performed by real-time PCR with TaqMan® probes; 80% of samples were duplicated (100% concordance) and control genotypes conformed to Hardy-Weinberg equilibrium.
View Article and Find Full Text PDFFunct Integr Genomics
September 2025
Zhengzhou Research Base, State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Zhengzhou University/Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Zhengzhou, China.
In this study, a comprehensive genome-wide identification and analysis of the aldo-keto reductase (AKR) gene family was performed to explore the role of Gossypium hirsutumAKR40 under salt stress in cotton. A total of 249 AKR genes were identified with uneven distribution on the chromosomes in four cotton species. The diversity and evolutionary relationship of the cotton AKR gene family was identified using physio-chemical analysis, phylogenetic tree construction, conserved motif analysis, chromosomal localization, prediction of cis-acting elements, and calculation of evolutionary selection pressure under 300 mM NaCl stress.
View Article and Find Full Text PDFCell Mol Life Sci
September 2025
Department of Gastroenterology, The Second Hospital of Shandong University, Jinan, China.
Metabolic associated steatohepatitis (MASH) is a severe form of metabolic dysfunction-associated steatotic liver disease (MASLD) characterized by hepatocellular injury, inflammation, and fibrosis. Despite advances in understanding its pathophysiology, the molecular mechanisms driving MASH progression remain unclear. This study investigates the role of long non-coding RNA Linc01271 in MASLD/MASH pathogenesis, ant its involvement in the miR-149-3p/RAB35 axis and PI3K/AKT/mTOR signaling pathway.
View Article and Find Full Text PDFJ Cell Biol
November 2025
Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA.
Two major protein recycling pathways have emerged as key regulators of enduring forms of synaptic plasticity, such as long-term potentiation (LTP), yet how these pathways are recruited during plasticity is unknown. Phosphatidylinositol-3-phosphate (PI(3)P) is a key regulator of endosomal trafficking and alterations in this lipid have been linked to neurodegeneration. Here, using primary hippocampal neurons, we demonstrate dynamic PI(3)P synthesis during chemical induction of LTP (cLTP), which drives coordinate recruitment of the SNX17-Retriever and SNX27-Retromer pathways to endosomes and synaptic sites.
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