Research Led by Greek Scientist Finds ‘Brain Viagra’ May Hide in Kisspeptin

A British scientific team, led by a Greek scientist, found that a hormone called kisspeptin can enhance limbic brain activity specifically in response to sexual and couple-bonding stimuli.
Furthermore, kisspeptin’s enhancement of limbic brain structures also correlates with psychometric measures of reward, drive, mood, and sexual aversion, providing functional significance. In addition, kisspeptin administration attenuated negative mood.

The placebo-controlled study focused on 29 healthy heterosexual young men and aimed to explore the effects of kisspeptin administration on limbic brain activity in response to sexual and emotional stimuli. They participated in 2 study visits: one for intravenous administration of kisspeptin and one for intravenous administration of an equivalent volume of vehicle for 75 minutes. Participants completed baseline and intrainfusion questionnaires and underwent functional MRI scanning while performing image tasks. Kisspeptin administration enhanced limbic brain activity in response to sexual images, which correlated with psychometric measures.

The researchers of the Department of Medicine at the Imperial London College, led by Professor Waljit Dhillo and Alexander Comninos, made the publication in the “Journal of Clinical Investigation.”
(source: ana-mpa)