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Molecular Researches in Hypertension

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Genetics and Genomics".

Deadline for manuscript submissions: closed (20 January 2025) | Viewed by 650

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Guest Editor
Research Centre, CRCHUM (Centre Hospitalier de l’Université de Montréal), Department of Medicine, Université de Montréal, Montreal, QC H2X 0A9, Canada
Interests: genetics; cardiovascular diseases; hypertension; QTLs

Special Issue Information

Dear Colleagues,

Identifying causal genes for blood pressure (BP), known as quantitative trait loci (QTLs), allows us to discover the etiology of hypertension pathogenesis well in advance of its underpinning physiology. until now, an increasing number of BP QTLs have been localized in both humans by genome-wide association studies (GWAS) and animal models. Human GWAS have statistically located >900 potential QTLs associated with BP by nucleotide sentinels. They are mostly located in non-coding genome regions and are the results of primate evolution independent of BP control. Future challenges are to qualitatively elevate the outcomes of statistics and the associations of localizing QTLs to establish the physiology and causation of their functions, and to understand the mechanisms of these QTLs determining BP together. Recent molecular breakthroughs have established a principle of one QTL equal to one gene at the level of physiology and in causation. In vivo studies have unified model and human QTLs into a physiological and mechanistic framework that originated from mammalian common ancestors.

Dr. Alan Y. Deng
Guest Editor

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Published Papers (1 paper)

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Research

16 pages, 2447 KiB  
Article
Modularized Genes in an Adrenal Pathway Reveal a Novel Mechanism in Hypertension Pathogenesis
by David W. Deng, Annie Ménard and Alan Y. Deng
Int. J. Mol. Sci. 2025, 26(8), 3782; https://doi.org/10.3390/ijms26083782 - 17 Apr 2025
Viewed by 205
Abstract
Human epidemiological studies have statistically localized a multitude of quantitative trait loci (QTLs) for blood pressure (BP). However, their potential pathogenic mechanisms causing hypertension remain mysterious. To fill this void, we utilized congenic knock-in genetics to physiologically analyze the BP effects of individual [...] Read more.
Human epidemiological studies have statistically localized a multitude of quantitative trait loci (QTLs) for blood pressure (BP). However, their potential pathogenic mechanisms causing hypertension remain mysterious. To fill this void, we utilized congenic knock-in genetics to physiologically analyze the BP effects of individual and combinational QTLs. The effect magnitude from a single QTL in vivo ranged from 33.8 to 59.8%. ‘Double’ and multiple combinations of QTLs exhibited the same BP impact as a single QTL alone. Consequently, the products of these QTLs seemed to belong to the same pathway involved in physiological BP regulations. From this, we identified a novel pathway of hypertension pathogenesis in vivo controlled by the CUE domain containing 1 protein (Cuedc1). This pathway physiologically modulates blood pressure, aldosterone production, and renal and cardiac functions. CUEDC1 originated from common mammalian ancestors, partly explaining similar blood pressures between humans and rodents on this shared mechanistic basis. A translation of CUEDC1 into diagnostic and treatment applications to humans seems individualized and mechanistic because humans and rats may utilize the same BP-regulating mechanisms involving CUEDC1. The future sustainability of post-GWAS will depend on a balanced and robust ‘ecosystem’ provided by model studies that are founded on the physiologies and mechanisms of BP regulations in vivo. Full article
(This article belongs to the Special Issue Molecular Researches in Hypertension)
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