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Puberty Endocrine Events - Anatomy & Physiology (view source)
Revision as of 07:09, 9 September 2008
, 07:09, 9 September 2008→Leptin
* Leptin is a hormonal peptide produced by adipocytes (fat cells).
* Leptin is a hormonal peptide produced by adipocytes (fat cells).
* The amount of leptin in the blood is directly related to the amount of fat in the body.
* The amount of leptin in the blood is directly related to the amount of fat in the body.
* Leptin receptors are found in the [[Liver_-_Anatomy_%26_Physiology|liver]], [[Urinary_System_-_Anatomy_%26_Physiology#The_Kidney|kidney]], [[Heart_-_Anatomy_%26_Physiology|heart]], skeletal muscles, pancreas, anterior pituitary gland and hypothalamus.
* Leptin receptors are found in the [[Liver_-_Anatomy_%26_Physiology|liver]], [[Urinary_System_-_Anatomy_%26_Physiology#The_Kidney|kidney]], [[Heart_-_Anatomy_%26_Physiology|heart]], [[Muscles_-_Anatomy_%26_Physiology#Skeletal_Muscle|skeletal muscles]], pancreas, anterior pituitary gland and hypothalamus.
* Leptin may be a signal that notifies GnRH neurons directly that nutritional status is adequate because a threshold 'fatness' has been achieved. Leptin may also signal to GnRH neurons indirectly via stimulation of neuropeptide Y, which in turn stimulates GnRH neurons.
* Leptin may be a signal that notifies GnRH neurons directly that nutritional status is adequate because a threshold 'fatness' has been achieved. Leptin may also signal to GnRH neurons indirectly via stimulation of neuropeptide Y, which in turn stimulates GnRH neurons.