Apelin‑13 in the paraventricular nucleus (PVN) attenuates myocardial ischemia through V1a receptors in PVN/nucleus tractus solitarii (NTS) and GARγ2 in NTS.

ABSTRACT: The apelin system plays a significant role in central blood pressure regulation, but its role in the neural control of myocardial protection remains poorly understood. The present study evaluated the effects of apelin‑13 in the paraventricular nucleus (PVN) on myocardial infarction (MI). In a male rat MI model, apelin‑13 expression was decreased in PVN, while Vasopressin 1a (V1a) receptor expression was increased in both PVN and nucleus tractus solitarii (NTS) and GABAA receptor (GAR)γ2 expression was increased in NTS. Cardiac function was assessed after microinjection of apelin‑13 or gene transfer of apelin‑13 into the PVN. Apelin‑13 overexpression in PVN markedly improved MI cardiac function, as evidenced by left ventricular end‑diastolic diameter, left ventricular end‑systolic diameter,

SUBMITTER: Yan W 

PROVIDER: S-EPMC12494304 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature