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Interactions between adrenal-regulatory and calcium-regulatory hormones in human health

Brown, Jenifer M.; Vaidya, Anand

Current Opinion in Endocrinology, Diabetes and Obesity: June 2014 - Volume 21 - Issue 3 - p 193–201
doi: 10.1097/MED.0000000000000062
ADRENAL CORTEX AND MEDULLA: Edited by Anand Vaidya

Purpose of review To summarize the evidence characterizing the interactions between adrenal-regulating and calcium-regulating hormones, and the relevance of these interactions to human cardiovascular and skeletal health.

Recent findings Human studies support the regulation of parathyroid hormone (PTH) by the renin–angiotensin–aldosterone system (RAAS): angiotensin II may stimulate PTH secretion via an acute and direct mechanism, whereas aldosterone may exert a chronic stimulation of PTH secretion. Studies in primary aldosteronism, congestive heart failure, and chronic kidney disease have identified associations between hyperaldosteronism, hyperparathyroidism, and bone loss, which appear to improve when inhibiting the RAAS. Conversely, elevated PTH and insufficient vitamin D status have been associated with adverse cardiovascular outcomes, which may be mediated by the RAAS. Studies of primary hyperparathyroidism implicate PTH-mediated stimulation of the RAAS, and recent evidence shows that the vitamin D–vitamin D receptor complex may negatively regulate renin expression and RAAS activity. Ongoing human interventional studies are evaluating the influence of RAAS inhibition on PTH and the influence of vitamin D receptor agonists on RAAS activity.

Summary Although previously considered independent endocrine systems, emerging evidence supports a complex web of interactions between adrenal-regulating and calcium-regulating hormones, with implications for human cardiovascular and skeletal health.

Center for Adrenal Disorders, Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA

Correspondence to Anand Vaidya, MD, MMSc, Center for Adrenal Disorders, Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical School, 221 Longwood Avenue, RFB, Boston, MA 02115, USA. Tel: +1 617 525 8285; fax: +1 617 732 5764; e-mail: avaidya1@partners.org

© 2014 Wolters Kluwer Health | Lippincott Williams & Wilkins