Growth Hormone Physiology

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Can you name the Growth Hormone Physiology?

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T/F: GH acts on proteins by increasing the amino acid intake, increasing protein synthesis, increasing transcription, and decreasing protein degradation.
short stature or form of dwarfism caused by a lack of GH receptors.
this condition is caused by excessive GH after adolescence. It does not increase the length of bones but does increase the growth of soft tissues.
fasting _____ the release of GH
The GH receptor at the liver is a unique receptor coupled to the JAK/ STAT pathway which causes production of _____ and its binding protein.
IGF-1 travels in the blood bound to which protein?
This receptor is a clearance receptor that removes its ligand out of circulation and into the cell to undergo lysosomal degradation?
this pathological condition is caused by a deficiency of GH or IGF-1 during childhood. Patients are short (but proportional) with no mental retardation.
T/F: When GHRH binds to its receptor intracellularly, it increases cAMP levels and causes an influx of calcium and release of secretory vesicles containing GH.
Insulin and IGF-1 receptors are apart of what class of receptors?
glucagon acts to _______ the release of GH.
Where is somatostatin produced in the hypothalamus?
T/F: Growth hormone acts to increase glucose availability for energy purposes.
T/F: Somatostatin can only be made in the hypothalamus.
T/F: pvGH is produced by the placenta. It binds to hGH receptor and is extremely important for the development of the fetus.
QuestionAnswer
A decrease in blood sugar (hypoglycemia) would ______ the release of GH.
T/F: Growth hormone acts to increase glucose uptake.
this condition is caused by excessive GH before adolescence, which causes increased body size and hyperglycemia.
Main target organ for growth hormone that causes its long term effect related to growth
T/F: GH is a protein hormone that has 2 biologically active isoforms
Growth hormone _____ lipolysis.
The GHRH _____ the release of growth hormone.
T/F: Maximum secretion of GH during life occurs at puberty.
T/F: Levels of GH increase significantly during the day.
T/F: The chronic release of GH causes an increase in plasma glucose and increase in plasma insulin, leading to hyperglycemia and insulin resistance.
Which nucleus of the hypothalamus produces Growth Hormone releasing hormone?
Main role of GH on hepatocytes is to induce the formation of ___.
True or False: IGF acts as a negative feedback regulator of GH release. and acts as a positive feedback regulator of somatostatin release.
obesity ______ the release of GH
inhibits the release of GH

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Created Feb 27, 2012ReportNominate
Tags:growth, hormone, physiology