Unravelling the Genetic Basis of Primary Aldosteronism | JoVE Visualize

Unravelling the Genetic Basis of Primary Aldosteronism

Niki Mourtzi¹, Amalia Sertedaki¹, Athina Markou²

¹Division of Endocrinology, Metabolism and Diabetes, First Department of Pediatrics, National and Kapodistrian University of Athens Medical School, "Aghia Sophia" Children's Hospital, 11527 Athens, Greece.

Nutrients|April 3, 2021

View abstract on PubMed

Summary

Primary aldosteronism (PA), a common cause of secondary hypertension, is increasingly linked to genetic mutations. Next-generation sequencing advances our understanding of its causes and highlights the need for better diagnostic tools.

Area of Science:

Endocrinology
Genetics
Hypertension Research

Background:

Primary aldosteronism (PA) is the most frequent cause of secondary hypertension, characterized by excessive aldosterone production.
Recent advancements in Next-Generation Sequencing (NGS) have significantly improved our understanding of the genetic basis of PA.
Genetic mutations are increasingly recognized as key factors in both sporadic and familial forms of PA.

Purpose of the Study:

To review the genetic underpinnings of primary aldosteronism.
To highlight the role of Next-Generation Sequencing in identifying PA-associated mutations.
To emphasize the need for improved diagnostic strategies for PA.

Main Methods:

Literature review of recent studies on PA genetics.
Analysis of Next-Generation Sequencing findings in primary aldosteronism.
Examination of identified somatic and germline mutations in relevant genes.

Main Results:

Somatic mutations in ion-channel genes (e.g., KCNJ5, CACNA1D) are linked to aldosterone-producing adenomas (APAs).
Germline variants in genes (e.g., CLCN2, KCNJ5) are associated with familial forms of PA and related neurological conditions.
The prevalence of PA may be underestimated, necessitating enhanced diagnostic approaches.

Conclusions:

Genetic discoveries have revolutionized the understanding of primary aldosteronism.
NGS technology is crucial for identifying causative mutations in PA.
Further research is essential to diagnose milder PA forms and elucidate underlying molecular mechanisms.