Growth Hormone Defects & ExcessPhysiology ReviewSecretion: Growth hormone regulates growth and metabolism in most body tissues. Growth hormone releasing hormone (GHRH) is secreted from the hypothalamus, and travels via neurons to the hypothalamic-pituitary portal system to reach somatotrophs in the anterior pituitary. In response to GHRH, the somatotrophs release growth hormone into the blood. Effects: Growth hormone acts directly on the tissues to increase blood glucose and free fatty acids, and promotes tissue growth and differentiation. Furthermore, growth hormone triggers hepatic release of IGF-1, which enhances the effects of growth hormone. Growth Hormone DefectsGrowth Hormone DeficiencyGrowth hormone deficiency results in reduced levels of growth hormone and, consequently, reduced levels of IGF-1. In most cases, isolated growth hormone deficiency is due to defects in the GH1 gene, which is responsible for growth hormone production.However, we need to rule out general hypopituitarism, in which other anterior pituitary hormones are also low.Treatment: Recombinant human growth hormone. Growth Hormone Insensitivity Growth hormone insensitivity is characterized by normal or high levels of growth hormone, and low levels of IGF-1. Insensitivity is caused by growth hormone receptor defects, which may be hereditary, as in Laron Syndrome, or acquired as a result of malnutrition, liver disease, diabetes, growth hormone receptor antibodies, or other pathologies.Treatment: recombinant IGF-1. Effects of Growth Hormone Defects:In Childhood: - If the defect appears in childhood, linear growth is slow (sometimes called pituitary dwarfism); - These patients often have delayed puberty, with small gonads and genitalia (micropenis).In Adulthood: - If growth hormone defects appear later in life, adults present with body composition changes, including reduced muscle and bone mass, and increased fat mass. - These patients have increased risk of cardiovascular disease (including left...
Classification of Bone pathology:- Regards:- Kriti Naja Jain :) Reference :- Neville oral and maxillofacial pathology 3rd e
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Posts about Oral Pathology written by drsmileyy, Dr.Mehnaz, aditishenoym, and Gerlyn Braganza
Plant Pathology: Agrios, George N: 9780120445653: Books - Amazon.ca
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Robbins Pathology Notes - Read online for free. it is the simple notes for topics of pathology robbins pathology,disease study , GENERAL PATHOLOGY –Basic mechanisms of disease SYSTEMIC PATHOLOGY: 1. Cell injury of death 2. Inflammation 3. Liquid of hemodynamic arrangement in this 2types of edima mainly 1 by inflammation 4. Immunopathology 5. Nutritional pathology 6. Genetical developmental pathology 7. Neoplasia 8. Infectious diseases EASY SOURCE : WWW.PATHGUY.COM
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shock pathology classification,hypovolemic shock pathogenesis septic shock stages etiology complicationof shock ,pathogensis of circulatory shock,bds
Pathology: A Movie About Snowboarding and Humans. Bryan Fox and Austin Smith partnered with storyteller Liam Gallagher to document a season of their experiences…
GI Pathology: Gastrointestinal bleeding Hematemesis means vomiting blood ("heme" = blood; "emesis" = vomit). When the bloody vomit has a dark, mottled "coffee ground" appearance, this means that the blood flow has slowed or stopped.Melena refers to b
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