Biomedical subjects

Hui Luo

Publications and source records attributed to Hui Luo.

2 recordsLinked to original sources

PubMed2026

Non-telomeric function deficiency of TERT enhances pressure overload-induced mouse cardiac remodeling by activation of CNBP-mediated THBS3/ITGB1 pathway.

Recent studies show that telomerase reverse transcriptase (TERT) possesses important new biological functions in gene transcription regulation, signal transduction, tumorigenesis, vascular development and mitochondrial DNA protection independent of the maintenance of telomere length. In this study we investigated the role and mechanisms of TERT in regulating the gene expression and signal transduction during pressure overload-induced cardiac remodeling. The first-generation TERT knockout (Tert-/-) and wild-type littermate control (Tert+/+) male mice were subjected to transverse aortic constriction (TAC) surgery to establish a pressure overload-induced cardiac remodeling model. We showed that pressure overload significantly increased TERT expression in the hearts at 8 weeks after TAC, whereas TERT deficiency remarkably exacerbated pressure overload-induced cardiac dysfunction, cardiac hypertrophy and fibrosis, and reduced the survival rate of the mice. In contrast, TERT overexpression reversed phenylephrine (PE)-stimulated cardiomyocyte hypertrophy and fibrosis in neonatal rat ventricular myocytes (NRVMs). Ttranscriptomic and proteomic analyses revealed that extracellular matrix (ECM)-receptor interaction was a key Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway regulated by TERT in hemodynamic overload-induced cardiac remodeling. TERT knockdown greatly enhanced, while TERT overexpression inhibited the activation of the THBS3/ITGB1 signaling pathway, in which transcription factor cellular nucleic acid-binding protein (CNBP) played a pivotal mediating role by interacting with TERT. In conclusion, the non-telomeric function of TERT in gene transcription regulation and signaling transduction plays an important role during pressure overload-induced myocardial remodeling via modulating CNBP-mediated THBS3/ITGB1 signaling pathway, which provides new targets and strategies for the prevention and treatment of pressure overload-induced cardiac remodeling.

Animals↗

PubMed2024

The associations between functional dyspepsia and potential risk factors: A comprehensive Mendelian randomization study.

BACKGROUND: Previous cross-sectional studies have identified multiple potential risk factors for functional dyspepsia (FD). However, the causal associations between these factors and FD remain elusive. Here we aimed to fully examine the causal relationships between these factors and FD utilizing a two-sample MR framework. METHODS: A total of 53 potential FD-related modifiable factors, including those associated with hormones, metabolism, disease, medication, sociology, psychology, lifestyle and others were obtained through a comprehensive literature review. Independent genetic variants closely linked to these factors were screened as instrumental variables from genome-wide association studies (GWASs). A total of 8875 FD cases and 320387 controls were available for the analysis. The inverse variance weighted (IVW) method was employed as the primary analytical approach to assess the relationship between genetic variants of risk factors and the FD risk. Sensitivity analyses were performed to evaluate the consistency of the findings using the weighted median model, MR-Egger and MR-PRESSO methods. RESULTS: Genetically predicted depression (OR 1.515, 95% confidence interval (CI) 1.231 to 1.865, p = 0.000088), gastroesophageal reflux disease (OR 1.320, 95%CI 1.153 to 1.511, p = 0.000057) and years of education (OR 0.926, 95%CI 0.894 to 0.958, p = 0.00001) were associated with risk for FD in univariate MR analyses. Multiple medications, alcohol consumption, poultry intake, bipolar disorder, mood swings, type 1 diabetes, elevated systolic blood pressure and lower overall health rating showed to be suggestive risk factors for FD (all p<0.05 while ≥0.00167). The positive causal relationship between depression, years of education and FD was still significant in multivariate MR analyses. CONCLUSIONS: Our comprehensive MR study demonstrated that depression and lower educational attainment were causal factors for FD at the genetic level.

Humans↗