Uechi-Ryu.com

Discussion Area
It is currently Mon Sep 15, 2014 4:02 am

All times are UTC




Post new topic Reply to topic  [ 1 post ] 
Author Message
PostPosted: Sun Mar 18, 2012 11:26 pm 
Offline
User avatar

Joined: Thu Mar 11, 1999 6:01 am
Posts: 17093
Location: Richmond, VA --- Louisville, KY
Sex apparently, or a lack thereof.

Quote:
Science 16 March 2012:
Vol. 335 no. 6074 pp. 1351-1355
DOI: 10.1126/science.1215932

Sexual Deprivation Increases Ethanol Intake in Drosophila

G. Shohat-Ophir1,2,*,
K. R. Kaun1,2,
R. Azanchi1,2,
U. Heberlein1,2,*

+ Author Affiliations

1Department of Anatomy, University of California, San Francisco, CA 94143-2822, USA.
2Present address: Howard Hughes Medical Institute, Janelia Farm Research Center, Ashburn, VA 20174, USA.

Abstract

The brain’s reward systems reinforce behaviors required for species survival, including sex, food consumption, and social interaction. Drugs of abuse co-opt these neural pathways, which can lead to addiction. Here, we used Drosophila melanogaster to investigate the relationship between natural and drug rewards. In males, mating increased, whereas sexual deprivation reduced, neuropeptide F (NPF) levels. Activation or inhibition of the NPF system in turn reduced or enhanced ethanol preference. These results thus link sexual experience, NPF system activity, and ethanol consumption. Artificial activation of NPF neurons was in itself rewarding and precluded the ability of ethanol to act as a reward. We propose that activity of the NPF–NPF receptor axis represents the state of the fly reward system and modifies behavior accordingly.


So here's the thing. Apparently those male fruit flies who did the deed had more of a brain chemical called neuropeptide F than comrades who didn’t have sex. Frustrated male fruitflies drank more. Sexually satisfied male fruit flies who had their neuropeptide F artificially suppressed also drank more.

Why do people do research like this? Among other reasons, they're looking for neurochemical bases for addiction. Find these trigger points and maybe you can find a pharmaceutical which can manipulate said biochemical pathways.

Or... we can ask for more sex and inform our partner that it's for our own good. :roll:

Image

- Bill


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC


Who is online

Users browsing this forum: Exabot [Bot] and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group