Randomised controlled trial

Direct comparison of the effects of intravenous kisspeptin-10, kisspeptin-54 and GnRH on gonadotrophin secretion in healthy men

Jayasena CN, Abbara A, Narayanaswamy S, et al. Human Reproduction 2015;30:1934-1941.

What it found

At the doses tested, kisspeptin-10 and kisspeptin-54 raised LH and FSH to a similar extent. GnRH raised them about 3 times more than kisspeptin-10 and about 2 times more than kisspeptin-54.

Limitations

Single-blinded, 5 men per dose group, as the authors note. Short infusions in healthy men only.

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