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Old 11-10-2013
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Cool Prolactin and the Circardian Rhythm!

Is prolactin regulated by circadian rhythm (as in FA) or by sleep cycle (as in kaplan Qbank) or its the same???
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I thought the main regulator of prolactin was Dopamine. Increased Dopamine = decreased prolactin. Also TRH has some effect on prolactin (increased TRH = increased Prolactin). And prolactin indirectly inhibits itself by increasing the secretion of dopamine.

As for the relationship between prolactin and sleep cycles/circadian rhythms...the only thing I can think of off the top of my head is that when you go to sleep dopamine levels decrease, so theoretically, when you go to bed, prolactin levels should increase.
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thanks for your reply but i wanna know exactly about its relationship with circadian rhythm or sleep cycle
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Quote:
Originally Posted by Dr.valoxib View Post
thanks for your reply but i wanna know exactly about its relationship with circadian rhythm or sleep cycle
circadian rhythm =relating to biologic variations or rhythms with a cycle of about 24 hours .....sleep is a component of it to be more specific about ....actually prolactin increases during REM sleep and early morning
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Originally Posted by npktun View Post
circadian rhythm =relating to biologic variations or rhythms with a cycle of about 24 hours .....sleep is a component of it to be more specific about ....actually prolactin increases during REM sleep and early morning
so porlactin release related to both (circadian rhythm and sleep cycle),
Right??
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so porlactin release related to both (circadian rhythm and sleep cycle),
Right??
yup you can say that
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