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Puberty Endocrine Events - Anatomy & Physiology (view source)
Revision as of 13:28, 8 September 2008
, 13:28, 8 September 2008→The Influence of Blood Glucose and Fatty Acids
* Thus, more LH and FSH are produced until puberty is reached.
* Thus, more LH and FSH are produced until puberty is reached.
= The Influence of Blood Glucose and Fatty Acids =
* There are three types of presynaptic neurons that can stimulate GnRH neurons:
* There are three types of presynaptic neurons that can stimulate GnRH neurons:
** Fatty acid sensitive neurons
** Fatty acid sensitive neurons
== Leptin ==
* Leptin is a hormonal peptide produced by adipocytes (fat cells).
* Leptin is a hormonal peptide produced by adipocytes (fat cells).
* 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.
== Glucose ==
* Blood glucose stimulate glucose sensing neurons.
* Blood glucose stimulate glucose sensing neurons.
* Glucose sensing neurons stimulate GnRH neurons to produce GnRH.
* Glucose sensing neurons stimulate GnRH neurons to produce GnRH.
== Blood Fatty Acids ==
* Blood fatty acids stimulate neurons that in turn stimulate GnRH neurons.
* Blood fatty acids stimulate neurons that in turn stimulate GnRH neurons.
* Blood fatty acids are an indicator of nutritional status.
* Blood fatty acids are an indicator of nutritional status.