Navigation Links
Fruit flies with better sex lives live longer

ANN ARBOR, Mich. Sex may in fact be one of the secrets to good health, youth and a longer life at least for fruit flies suggests a new University of Michigan study that appears in the journal Science.

Male fruit flies that perceived sexual pheromones of their female counterparts without the opportunity to mate experienced rapid decreases in fat stores, resistance to starvation and more stress. The sexually frustrated flies lived shorter lives.

Mating, on the other hand, partially reversed the negative effects on health and aging.

"Our findings give us a better understanding about how sensory perception and physiological state are integrated in the brain to affect long-term health and lifespan," says senior author Scott D. Pletcher, Ph.D, professor in the Department of Molecular and Integrative Physiology at the U-M Medical School and research professor at the U-M Geriatrics Center.

"The cutting-edge genetics and neurobiology used in this research suggests to us that for fruit flies at least, it may not be a myth that sexual frustration is a health issue. Expecting sex without any sexual reward was detrimental to their health and cut their lives short."

U-M scientists used sensory manipulations to give the common male fruit fly, Drosophila melanogaster, the perception that they were in a sexually rich environment by exposing them to genetically engineered males that produced female pheromones. They were also able to manipulate the specific neurons responsible for pheromone perception as well as parts of the brain linked to sexual reward (secreting a group of compounds associated with anxiety and sex drive).

"These data may provide the first direct evidence that aging and physiology are influenced by how the brain processes expectations and rewards," Pletcher says. "In this case, sexual rewards specifically promoted healthy aging."

Fruit flies have been a powerful tool for studying aging because they live on average 60 days yet many of the discoveries in flies have proven effective in longer-lived animals, such as mice.

For decades, one of the most powerful ways to slow aging in different species was by limiting their food intake. In a previous study, Pletcher and his colleagues found that the smell of food alone was enough to speed up aging, offering new context for how dietary restriction works.


Contact: Beata Mostafavi
University of Michigan Health System

Related biology news :

1. An invasive Asian fly is taking over European fruit
2. First fruitful, then futile: Ammonites or the boon and bane of many offspring
3. Fruit flies provide new knowledge about uninhibited cell growth
4. Virginia Tech and University of Tuscia lead team to unravel origin of devastating kiwifruit bacterium
5. Hormone in fruit flies sheds light on diabetes cure, weight-loss drug for humans
6. Study of fruit fly chromosomes improves understanding of evolution and fertility
7. Fruity science halves fat in chocolate
8. Bees, fruits and money
9. Could chloroplast breakthrough unlock key to controlling fruit ripening in crops?
10. Viable and fertile fruit flies in the absence of histone H3.3
11. Fruit fly studies guide investigators to misregulated mechanism in human cancers
Post Your Comments:
Related Image:
Fruit flies with better sex lives live longer
(Date:10/29/2015)... Va. , Oct. 29, 2015 Daon, ... today that it has released a new version of ... customers in North America have ... IdentityX v4.0 also includes a FIDO UAF certified ... are already preparing to activate FIDO features. These customers ...
(Date:10/29/2015)... 2015 NXTD ) ("NXT-ID" ... on the growing mobile commerce market and creator ... a leading marketplace to discover and buy innovative ... wallet on StackSocial for this holiday season.   ... "Company"), a biometric authentication company focused on the ...
(Date:10/27/2015)... Munich, Germany , ... (ASGM) automatically maps data from mobile eye tracking videos ... so that they can be quantitatively analyzed with SMI,s ... Germany , October 28-29, 2015. SMI,s Automated Semantic ... eye tracking videos created with SMI,s Eye Tracking ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... ... November 24, 2015 , ... The Academy of Model Aeronautics (AMA), ... MultiGP, also known as Multirotor Grand Prix, to represent the First–Person View (FPV) racing ... AMA members have embraced this type of racing and several new model aviation pilots ...
(Date:11/24/2015)... 24, 2015 /PRNewswire/ - Aeterna Zentaris Inc. (NASDAQ: ... the remaining 11,000 post-share consolidation (or 1,100,000 pre-share ... "Series B Warrants") subject to the previously disclosed ... 23, 2015, which will result in the issuance ... to the issuance of such shares, there will ...
(Date:11/24/2015)... ... November 24, 2015 , ... Creation Technologies would ... named to Deloitte's 2015 Technology Fast 500 list of the fastest growing companies ... FDA-cleared, Class II medical device that speeds up orthodontic tooth movement by as ...
(Date:11/24/2015)... Nov. 24, 2015  PDL BioPharma, Inc. (PDL) (NASDAQ: ... the company,s president and chief executive officer, will present at ... week in New York City . The ... December 1, 2015 at 9:30 a.m. EST. ... the website at least 15 minutes prior to the presentation ...
Breaking Biology Technology: