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Effects of high-altitude hypoxia on the hormonal response to
Effects of high-altitude hypoxia on the hormonal response to

... obtained from Roussel Laboratories (Paris, France) in the form of injection solutions. Blood samples were centrifuged and then stored in liquid nitrogen during the remaining days at altitude and during transport to Paris. Analyses were performed at Necker Hospital. Concentrations of TSH, T3, fT3, T4 ...
PTA/OTA 106 Unit 1 Lecture 2
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...  Growth hormone releasing hormone (GHRH) – causes release of growth hormone  Gonadotropin releasing hormone (GnRH) – causes release of the 2 gonadotropic hormones (luteinizing and follicle-stimulating hormone) ...
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hGH - ISpatula

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... The posterior lobe of the pituitary gland is derived from neural tissue and its connection to the hypothalamus is neural. Posterior Pituitary produces 2 hormones: ADH and oxytocin. These are produced by the nerve cell bodies that are located in the hypothalamus, where they are packaged into secretor ...
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... 2. Sebaceous >>> oil 3. Digestive >>> enzymes Endocrine glands = secrete hormones in extracellular space, which diffuse into capillaries and are carried throughout the circulatory system. Endocrine system = all the endocrine glands and organs that contain endocrine tissue. HORMONE FUNCTION IS TO REG ...
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... grow and mature; it is also responsible for estrogen secretion. In men, the FSH hormone controls the growth of the seminiferous tubules and sperm growth. Luteinizing hormone (LH) has separate functions for females and males. In females, it functions to mature the ovarian follicle and ovum, helps wit ...
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... 18. Can a woman have excessively high or excessively low prolactin levels and still be fertile? a. Probably not 19. What are the two hormones needed in breastfeeding and what are their functions? a. Oxytocin (produced by the paraventricular nucleus of the hypothalamus and released by the posterior p ...
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Student Academic Learning Services The

... posterior pituitary for storage. B) Antidiuretic hormone, released by the posterior pituitary, causes urine volume to increase and blood volume to decrease. C) Luteinizing hormone, an anterior pituitary hormone, triggers ovulation of an egg from the ovary and causes the ruptured follicle to produce ...
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... During Pregnancy, high prolactin promote development of breast for milk secretion ...
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Prolactin

Prolactin (PRL), also known as luteotropic hormone or luteotropin, is a protein that in humans is best known for its role in enabling female mammals to produce milk; however, it is influential over a large number of functions with over 300 separate actions of PRL having been reported in various vertebrates. Prolactin is secreted from the pituitary gland in response to eating, mating, estrogen treatment, ovulation, and nursing. Prolactin is secreted in a pulsatile fashion in between these events. Prolactin also plays an essential role in metabolism, regulation of the immune system, and pancreatic development.Discovered in non-human animals around 1930 by Oscar Riddle at Cold Spring Harbor Laboratory on Long Island, New York, and confirmed in humans in 1970 by Henry Friesen prolactin is a peptide hormone, encoded by the PRL gene.Although often associated with human milk production, prolactin plays a wide range of other roles in both humans and other vertebrates. (For example, in fish—the oldest known vertebrates—an important function is probably related to control of water and salt balance.) Prolactin also acts in a cytokine-like manner and as an important regulator of the immune system. It has important cell cycle related functions as a growth-, differentiating- and anti-apoptotic factor. As a growth factor, binding to cytokine like receptors, it also has profound influence on hematopoiesis, angiogenesis and is involved in the regulation of blood clotting through several pathways. The hormone acts in endocrine, autocrine, and paracrine manner through the prolactin receptor and a large number of cytokine receptors.Pituitary prolactin secretion is regulated by endocrine neurons in the hypothalamus, the most important ones being the neurosecretory tuberoinfundibulum (TIDA) neurons of the arcuate nucleus, which secrete dopamine (aka Prolactin Inhibitory Hormone) to act on the D2 receptors of lactotrophs, causing inhibition of prolactin secretion. Thyrotropin-releasing factor (thyrotropin-releasing hormone) has a stimulatory effect on prolactin release, however Prl is the only adenohypophyseal hormone whose principal control is inhibitory.Several variants and forms are known per species. Many fish have variants prolactin A and prolactin B. Most vertebrates including humans also have the closely related somatolactin. In humans, three smaller (4, 16, and 22 kDa) and several larger (so called big and big-big) variants exist.
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