For Flies Hooked on Meth, Sugar Delays Death (LiveScience.com)

Thursday, April 21, 2011 4:01 AM By dwi

Fruit flies on meth experience less verify morbidness if they've been snacking on a honeyed diet, a newborn think finds.

But this isn't a spoonful-of-sugar-makes-the-meth-go-down situation: Methamphetamine ease restitution the production flies' systems, said think scientist Barry Pittendrigh, a toxicologist at the University of Illinois. Besides, it's not yet known whether dulcify in humans would wage a similar protective response, Pittendrigh told LiveScience.

"We do know that people who are deoxyephedrine addicts oftentimes verify in super amounts of honeyed drinks, so that was an interesting observation," Pittendrigh said. "But whether or not these things turn discover to be related is a question for future research."

Flies on meth

The festinate that comes with taking methamphetamines comes at a price. The verify crapper drive mentality changes directive to emotional and noetic impairment, according to the National Institute on Drug Abuse. Meth's side personalty also allow extremity weight loss, anxiety, confusion, insomnia, hallucinations and delusions. 

All of this was known from clinical studies, Pittendrigh said, but the molecular pathways that drive these personalty are less well understood. He and his colleagues overturned to production flies as a model of what meth does to the body. Though farther unconnected on the evolutionary ladder, production flies and humans care whatever similarities on a molecular level, Pittendrigh said.

After whatever failed attempts to intend the flies to have meth, the researchers managed to steal it into the insects' matter media. Then, they did genetic and molecular tests to see how the meth strained control biology.

The impacts overturned discover to be rattling widespread. The researchers found 229 genes that recorded into proteins differently under the impact of meth, and 34 changes in the molecular processes that intend cells. Meth exposure changed the behaviors of molecules participating in dulcify metabolism, cancellated forcefulness generation, and muscle health, the researchers inform today (April 20) in the open-access journal PLoS One. Even spermatogensis, or the utilization of sperm, was hit by meth's devastating power.

Meth also strained oxidative stress, a facet of cancellated aging. That finding was rattling logical, Pittendrigh said.

"Methamphetamines are known to drive a rattling rapid old effect," he said. "Oxidative stress crapper drive a lot of damage to cells."

Sweet protection

The finding that meth affects forcefulness and metastasis prefabricated Pittendrigh and his colleagues astonishment if dulcify metastasis (how the embody breaks down and utilizes sugar) isn't participating in meth's cyanogenic effects. They fed meth-exposed production flies a fasting onerous in trehalose, an ectozoan murder sugar, and found that the sugar-eating flies outlived those on a regular diet.

Many of the results order follow-up investigating to determine their relevance to mammals, Pittendrigh said. But the hope is that production flies crapper help researchers understand what makes meth much a "horrible molecule," he said.

"Hopefully, whatever of these insights might advance to opportunities to care with the problems related with the drug," he said.

You crapper study LiveScience senior illustrator Stephanie Pappas on Twitter @sipappas. Follow LiveScience for the latest in power news and discoveries on Twitter @livescience and on Facebook.

  • Top 10 Controversial Psychiatric Disorders
  • 10 Easy Paths to Self Destruction
  • Top 10 Bad Things That Are Good For You


Source

0 comments:

Post a Comment