True statement about Melatonin are all EXCEPT:
Ans. A Secreted by pituitary glandRef: Ganongs 24th ed. pg. 278; Guyton pg. 1009-1010* Melatonin is secreted by pinealQ gland. Its synthesis and secretion is increased remarkably in the dark period of the day and maintained at low levels in the daylight.* It is associated with sleep mechanism.* Melatonin based drugs can be used to treat jet lag and insomnia in elderly.* It also acts as inhibitor of gonadotropic hormone secretion and the gonads become inhibited and even partly involuted.
Secreted by pituitary gland
Secreted by pineal gland
Associated with sleep mechanism
Can be used to treat jet lag
Endocrinology metabolism