Effect of Pituitary-Target Gland Axis on RAAS in the Context of COVID-19.

The pituitary gland is a very important endocrine gland in the human body. It secretes and releases many hormones crucial for controlling physiological processes, such as energy metabolism, human growth and development, and reproduction. The renin-angiotensin-aldosterone system regulates water and salt homeostasis, controlling blood pressure. Since the discovery of the renin-angiotensin-aldosterone system, exploring and studying its role in pathophysiology has never stopped, and patients have benefited from drug-based and clinical studies. This review focuses on the effects of the pituitary-target gland axis (pituitary-thyroid axis, pituitary-adrenal axis, pituitary-growth hormone axis, pituitary-gonadal axis) and some hormones secreted and stored by the pituitary gland on the RAAS. While considering that SARS-CoV-2 reinfection still occurs, we aim to provide new insights into water-electrolyte balance and blood pressure regulation.