Estrogen is a group of steroid hormones primarily produced by the ovaries in females. It plays a crucial role in the development and maintenance of the female reproductive system, influencing processes such as the menstrual cycle, secondary sexual characteristics, and pregnancy. The three main types of estrogen are estradiol, estriol, and estrone, with estradiol being…
Healthcare providers use oral hypoglycemic agents to treat diabetes mellitus. Healthcare providers administer these agents orally to lower elevated blood glucose levels in individuals with type 2 diabetes. Various types of oral hypoglycemic agents exist, each with distinct mechanisms of action. These include, but are not limited to, biguanides, sulfonylureas, meglitinides, thiazolidinediones (TZDs), dipeptidyl peptidase-4…
Insulin is a hormone produced by the beta cells of the pancreas that plays a central role in regulating glucose metabolism. Its primary function is to facilitate glucose uptake by cells, promoting the storage of excess glucose as glycogen in the liver and muscles. Insulin also stimulates the synthesis of proteins and the storage of…
Vitamin D is a vital fat-soluble nutrient for regulating calcium and phosphorus metabolism. It includes forms like D2 (from plant sources) and D3 (synthesized in the skin and found in animal-based foods). Its primary role is aiding the absorption of calcium and phosphorus in the intestines, which are vital for bone health. Obtained from diet,…
Calcitonin is a 32-amino acid polypeptide hormone primarily involved in calcium and phosphate homeostasis. It is secreted by the parafollicular C cells of the thyroid gland in mammals and serves as a physiological antagonist to parathyroid hormone (PTH). While its role in human calcium metabolism is less dominant compared to PTH and vitamin D, calcitonin…
Parathyroid hormone (PTH) is a critical hormone that regulates calcium and phosphate levels in the body. It is produced and secreted by the parathyroid glands, four small pea-sized glands on the thyroid gland. PTH plays a central role in maintaining calcium homeostasis through its effects on bone, kidneys, and the gastrointestinal tract. 1. Physiology of…
Anti-thyroid drugs are medications designed to treat hyperthyroidism by reducing the production of thyroid hormones, specifically thyroxine (T4) and triiodothyronine (T3). The most common conditions treated with these drugs include Graves’ disease and toxic nodular goiter. The two main classes of anti-thyroid drugs are thionamides, which include propylthiouracil (PTU) and methimazole, and iodine-containing drugs. 1….
Thyroid hormones are a class of chemical messengers produced by the thyroid gland, a butterfly-shaped endocrine organ located in the neck. The primary thyroid hormones are thyroxine (T4) and triiodothyronine (T3). These hormones play a crucial role in regulating various physiological processes, including metabolism, energy production, and the functioning of the cardiovascular and nervous systems….
Mucolytic agents help liquefy or thin mucus in the respiratory tract, making it easier to expel. These agents are commonly used to assist in managing respiratory conditions associated with producing thick and sticky mucus. Classification of Mucolytic Agents Mucolytic agents can be classified based on their primary mechanisms of action: 1. Direct Mucolytics: Direct mucolytics…
Anti-tussive agents, commonly referred to as cough suppressants, are pharmaceutical substances used to reduce or suppress the cough reflex. Coughing is a protective reflex that helps clear the airways of mucus, irritants, foreign particles, and microbes. However, persistent or non-productive coughing can be distressing and may indicate an underlying pathology, making the use of anti-tussive…