Hormones are chemical messengers (steroids, prostaglan-dins, and protein/peptides) involved in cellular signaling from point A to B within a physiological system (endocrine, paracrine, autocrine, and/or intracrine communication). To date, numerous hormones, including steroid hormones, have been characterized biochemically. Steroids are required for a plethora of mammalian biological functions, ranging from organogenesis during development to the regulation of metabolic pathways and the proliferation of reproductive/mammary tissues. Steroids consist of six classes progestins, estrogens, androgens, mineralocorticoids, glucocorticoids, and vitamin D. This article focuses on the structure, synthesis, and physiological mechanism of action of steroids.

How To Bolster Your Immune System

How To Bolster Your Immune System

All Natural Immune Boosters Proven To Fight Infection, Disease And More. Discover A Natural, Safe Effective Way To Boost Your Immune System Using Ingredients From Your Kitchen Cupboard. The only common sense, no holds barred guide to hit the market today no gimmicks, no pills, just old fashioned common sense remedies to cure colds, influenza, viral infections and more.

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