Although there are well over 100 antibiotics, the majority come from only a few types of drugs. These are the main classes of antibiotics. Penicillins such as penicillin and amoxicillin. Cephalosporins such as cephalexin (Keflex) Macrolides such as erythromycin (E-Mycin), clarithromycin (Biaxin), and azithromycin (Zithromax)
The endogenous serum metabolite of vitamin D (calcitriol, 1,25(OH)2 D3) is considered a true steroid hormone (D hormone), and like glucocorticoids (GCs) and gonadal hormones, may exert several immunomodulatory activities.itamin D, steroid hormones, and autoimmunity. Cutolo M(1), Paolino S, Sulli A, Smith V, Pizzorni C, Seriolo B. Author information: (1)Research Laboratories and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, Genova, Italy.
Steroid hormones are derived from cholesterol and are lipid-soluble molecules. Examples of steroid hormones include the sex hormones (androgens, estrogens, and progesterone) produced by male and female gonads and hormones of the adrenal glands (aldosterone, cortisol, and androgens).teroid hormones cause changes within a cell by first passing through the cell membrane of the target cell. Steroid hormones, unlike non-steroid hormones, can do this because they are fat-soluble.