Microbiome impact on metabolism and function of sex, thyroid, growth and parathyroid hormones

Commensal bacteria and their genes associated with host are known as microbiome. In recent years, microbial influence on host endocrine system has been under detailed investigation. The role of microbiome in the
pathogenesis of insulin resistance and obesity, the function of hypothalamic-pituitary-adrenal axis and secretion of hormones regulating appetite is well described in world literature. In this article we discuss poorly reviewed issues: the microbiome role in modulation of non‑peptide (sex and thyroid) and peptide (growth hormone and parathyroid hormone) functions. Understanding complex bidirectional relations between host endocrine system and bacteria is of fundamental importance to understanding microbial impact on host reproduction, risk of endocrine‑related cancers, pathogenesis of non‑thyroidal illness syndrome, growth failure in children and hormonal changes during chronic kidney disease.  This article also highlights effects of dietary compounds on microbiome composition and bacterial enzymes activity, and thus host hormonal status.

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