The following points highlight the top two types of parathyroid hormones. The types are: 1. Parathormone 2. Calcitonin. Parathyroid Hormones Type # 1. Parathormone: Chemistry: a. It is a polypeptide consisting of 84 amino acids. b. Its molecular weight is 9,500. c. This hormone from different species differ only slightly. d. It is initially synthesized in the chief cells as [...]
The following points highlight the two main types of female sex hormones. The types are: 1. Estrogens 2. Progesterone. Female Sex Hormones Type # 1. Estrogens: Chemistry: a. The estrogens are C-18 steroids and differ from androgens in lacking the methyl group C10. The ring A is aromatic. b. The androgens, testosterone, and androstenedione are precursors for the synthesis of [...]
The below mentioned article provides a short note on the Thyroid Gland. The thyroid gland weighs about 25-30 gm. and consists of closely packed sacs (follicles) filled with proteinaceous colloid. The gland secretes the hormones thyroxine and triiodothyronine. Of a total of 50 mg of iodine in the body, about 10-15 mg are in thyroid. Thyroxine and Triiodothyronine: Chemistry: 1. [...]