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The adrenal glands are endocrine glands that produce a variety of hormones including adrenaline and the steroids aldosterone and cortisol. They are found above the kidneys. Each gland has an outer cortex which produces steroid hormones and an inner medulla. The adrenal cortex itself is divided into three main zones: the zona glomerulosa, the zona fasciculata and the zona reticularis.
Endocrinology is a branch of biology and medicine dealing with the endocrine system, its diseases, and its specific secretions known as hormones. It is also concerned with the integration of developmental events proliferation, growth, and differentiation, and the psychological or behavioral activities of metabolism, growth and development, tissue function, sleep, digestion, respiration, excretion, mood, stress, lactation, movement, reproduction, and sensory perception caused by hormones. Specializations include behavioral endocrinology and comparative endocrinology.
Corticosteroids are a class of steroid hormones that are produced in the adrenal cortex of vertebrates, as well as the synthetic analogues of these hormones. Two main classes of corticosteroids, glucocorticoids and mineralocorticoids, are involved in a wide range of physiological processes, including stress response, immune response, and regulation of inflammation, carbohydrate metabolism, protein catabolism, blood electrolyte levels, and behavior.
Sir Frederick Grant Banting was a Canadian medical scientist, physician, painter, and Nobel laureate noted as the co-discoverer of insulin and its therapeutic potential.
Cortisone is a pregnane (21-carbon) steroid hormone. It is a naturally-occurring corticosteroid metabolite that is also used as a pharmaceutical prodrug; it is not synthesized in the adrenal glands. Cortisol is converted by the action of the enzyme corticosteroid 11-beta-dehydrogenase isozyme 2 into the inactive metabolite cortisone, particularly in the kidneys. Cortisone is converted back to the active steroid cortisol by the action of the enzyme 11β-Hydroxysteroid dehydrogenase type 1, particularly in the liver.
Philip Showalter Hench was an American physician. Hench, along with his Mayo Clinic co-worker Edward Calvin Kendall and Swiss chemist Tadeus Reichstein was awarded the Nobel Prize for Physiology or Medicine in 1950 for the discovery of the hormone cortisone, and its application for the treatment of rheumatoid arthritis. The Nobel Committee bestowed the award for the trio's "discoveries relating to the hormones of the adrenal cortex, their structure and biological effects."
Addison's disease, also known as primary adrenal insufficiency, is a rare long-term endocrine disorder characterized by inadequate production of the steroid hormones cortisol and aldosterone by the two outer layers of the cells of the adrenal glands, causing adrenal insufficiency. Symptoms generally come on slowly and insidiously and may include abdominal pain and gastrointestinal abnormalities, weakness, and weight loss. Darkening of the skin in certain areas may also occur. Under certain circumstances, an adrenal crisis may occur with low blood pressure, vomiting, lower back pain, and loss of consciousness. Mood changes may also occur. Rapid onset of symptoms indicates acute adrenal failure which is a serious and emergent condition. An adrenal crisis can be triggered by stress, such as from an injury, surgery, or infection.
George Richards Minot was an American medical researcher who shared the 1934 Nobel Prize with George Hoyt Whipple and William P. Murphy for their pioneering work on pernicious anemia.
Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases. It is also used to treat high blood calcium due to cancer and adrenal insufficiency along with other steroids. It is taken by mouth.
Adrenal insufficiency is a condition in which the adrenal glands do not produce adequate amounts of steroid hormones, primarily cortisol; but may also include impaired production of aldosterone, which regulates sodium conservation, potassium secretion, and water retention. Craving for salt or salty foods due to the urinary losses of sodium is common.
Joseph Edward Murray was an American plastic surgeon who performed the first successful human kidney transplant on identical twins Richard and Ronald Herrick on December 23, 1954.
Endocrine glands are ductless glands of the endocrine system that secrete their products, hormones, directly into the blood. The major glands of the endocrine system include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands. The hypothalamus and pituitary glands are neuroendocrine organs.
11β-Hydroxysteroid dehydrogenase enzymes catalyze the conversion of inert 11 keto-products (cortisone) to active cortisol, or vice versa, thus regulating the access of glucocorticoids to the steroid receptors.
The Baker Heart and Diabetes Institute, commonly known as the Baker Institute, is an Australian independent medical research institute headquartered in Melbourne, Victoria. Established in 1926, the institute is one of Australia's oldest medical research organisations with a historical focus on cardiovascular disease. In 2008, it became the country's first medical research institute to target diabetes, heart disease, obesity and their complications at the basic, clinical and population health levels.
The Rogosin Institute is an independent, not-for-profit treatment and research center with facilities throughout New York City that treat patients with kidney disease, including dialysis and kidney transplantation; lipid disorders; and hypertension. It is affiliated with NewYork-Presbyterian Hospital, Weill Cornell Medical College and is a leader in research programs for cancer and diabetes.
John Putnam Merrill was an American physician and medical researcher. He led the team which performed the world's first successful kidney transplant. He generally credited as the "father of nephrology" or "the founder of nephrology," which is the scientific study of the kidney and its diseases.
The condition known today as diabetes is thought to have been described in the Ebers Papyrus. Ayurvedic physicians first noted the sweet taste of diabetic urine, and called the condition madhumeha. The term diabetes traces back to Demetrius of Apamea. For a long time, the condition was described and treated in traditional Chinese medicine asxiāo kě. Physicians of the medieval Islamic world, including Avicenna, have also written on diabetes. Early accounts often referred to diabetes as a disease of the kidneys. In 1674, Thomas Willis suggested that diabetes may be a disease of the blood. Johann Peter Frank is credited with distinguishing diabetes mellitus and diabetes insipidus in 1794.
George Argale Harrop was an American physician, nutritionist and writer.
Leonard George Rowntree (1883–1959) was a Canadian physician and medical researcher who was credited with founding the research tradition at the Mayo Clinic. He is most well known for pioneering kidney research including the Rowntree test for kidney function; dialysis; the intravenous pyelogram and plasmapheresis. Rowntree was awarded the Medal for Merit in 1946.
Andrew Almon Fletcher was a Canadian physician and pioneering diabetologist, known as one of the five co-authors of the famous 1922 paper Pancreatic Extracts in the Treatment of Diabetes Mellitus.
References
- 1 2 3 4 Krug, Nora (July 18, 2004). "George Thorn, 98, Pioneer In Addison's Disease, Dies". The New York Times . Retrieved February 22, 2012.
- 1 2 3 4 5 "In Memoriam George W. Thorn, 1906-2004" (Press release). Howard Hughes Medical Institute. July 1, 2004. Archived from the original on August 28, 2010. Retrieved February 22, 2012.
- ↑ Thorn, George W.; Renold, Albert E.; Cahill, George F. (1959). "The Adrenal and Diabetes: Some Interactions and Interrelations: The Banting Memorial Lecture 1959". Diabetes. 8 (5): 337–351. doi:10.2337/diab.8.5.337. PMID 13838198. S2CID 5502786.
