Last updated on June 2019

Neuropeptides in Human Reproduction


Brief description of study

The investigators are seeking healthy volunteers and volunteers with reproductive disorders for the study of the role of dynorphin in the reproductive system. Dynorphin is a naturally occurring opioid hormone that is blocked by naloxone.

We hypothesize that naloxone, by blocking dynorphin, will stimulate production of GnRH and kisspeptin, 2 other naturally occurring reproductive hormones.

Clinical Study Identifier: NCT01952782

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