Estudio relaciona falta de sexo con mayor ingesta de alcohol
Un informe del Instituto Médico Howard Hughes, en Virginia, Estado Unidos, señala que la falta de relaciones sexuales podría estar ligada a la ingesta de mayores cantidades de alcohol.
Para llegar a estas conclusiones, los investigaciones utilizaron moscas con las cuales comprobaron que los machos rechazados por la hembra ingieren mayores cantidades de alcohol que los han copulado libremente.
Al parecer, este líquido estimula sus cerebros (efecto parecido al ocasionado en los humanos), siendo una especie de «premio de consolación» para la falta de sexo.
Dicho comportamiento estaría relacionado a un químico cerebral llamado Neuropéptido F (NPF). Los seres humanos tienen un compuesto químico similar, lo que les podría hacer reaccionar del mismo modo.
*Nota de nydailynews.com
Rejected male fruit flies drink to drown their sorrows at higher rate than sexually-satisfied flies
Spurned male flies have a chemical in their brain that pushes them to drink more than contented counterparts
Scientists at the University of California, San Francisco discovered that rejected male flies have a tiny neuropeptide F molecule in their brain that pushes them to drink far more than their sexually satisfied counterparts. Frustrated male fruit flies, whose sexual advances are rejected by females, turn to alcohol to drown their sorrows, a study published Thursday revealed.
Scientists at the University of California, San Francisco discovered that rejected male flies have a tiny neuropeptide F molecule in their brain that pushes them to drink far more than their sexually satisfied counterparts.
A similar human molecule — neuropeptide Y — may also link social triggers to behaviors such as heavy drinking and drug abuse, according to the study published in Science journal.
«If neuropeptide Y turns out to be the transducer between the state of the psyche and the drive to abuse alcohol and drugs, one could develop therapies to inhibit neuropeptide Y receptors,» said lead researcher Ulrike Heberlein, a professor of anatomy and neurology at UCSF.
She said clinical trials were underway to determine whether neuropeptide Y can alleviate anxiety and other mood disorders as well as obesity.
For the experiment, male fruit flies were placed in a container with females flies, including both virgins and some that had already mated.
But when they were placed by themselves in another container that had two straws — one containing plain food and the other containing food with 15 percent alcohol — the rejected males binged on the alcohol. The scientists said the behavior was predicted by the levels of neuropeptide F in their brains.
«It’s a switch that represents the level of reward in the brain and translates it into reward-seeking behavior,» said lead author Galit Shohat-Ophir of the Howard Hughes Medical Institute Janelia Farm Research Center in Virginia.
Rejected flies had lower levels of neuropeptide F and sought an alternative reward through intoxication. The scientists found that they could induce the same behaviors in the flies by genetically manipulating the levels of neuropeptide F in their brains.
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