HOME >> BIOLOGY >> NEWS
Yerkes Primate Research Center Of Emory University Reseachers Find Hunger Regulated By Novel Neurotransmitter

ATLANTA, Ga. -- Neuroscientists at the Yerkes Primate Research Center of Emory University have discovered in the brain a novel neurotransmitter that helps control food intake and seems to be partially responsible for the feeling of satiety. The finding may eventually be used to develop medications for obesity, a life-threatening, yet common condition that often lies at the root of other serious illnesses such as diabetes and cardiovascular disease. The study will be reported in the journal Synapse (vol 29, No. 4), available in May on the Synapse website.

The neurotransmitter is called CART peptide, for Cocaine and Amphetamine Regulated Transcript, and its role in feeding was found during studies on the effects of cocaine on the brain. Yerkes neuroscientist Pastor Couceyro was one of the first to notice in rodents that CART mRNA increased in a specific area of the brain when cocaine was administered..

"We tested the CART peptide to see if it could be an agent responsible for loss of appetite for two reasons," says Mike Kuhar, Ph.D., Chief of Neuroscience Division at Yerkes. "First, CART is associated with cocaine and cocaine reduces food intake. Also, CART peptides are found in regions of the brain that control food intake."

When the Yerkes research team injected the CART peptide into the brains of normal rats, their food intake was significantly inhibited--by as much as 30 percent, according to Dr. Phil Lambert, who completed the behavioral aspect of the work. In normal rats, CART was present in high levels in the hypothalamus, "meaning that CART is apparently involved in a variety of physiologic processes, not just in cocaine addiction," says Dr. Lambert.

Next Lambert tried the flip side of the experiment-- blocking the brain's naturally-occurring CART peptides by injecting antibodies (which bind to the CART peptides and render them non-functional). Without CART peptides to put the brakes on appetite, the rats' feeding increased. "This antib
'"/>

Contact: Kate Egan
kegan@rmy.emory.edu
404-727-7709
Emory University Health Sciences Center
30-Apr-1998


Page: 1 2 3

Related biology news :

1. Yerkes researchers find primate face recognition can be purely visual
2. Primate viruses transmitted to people through bushmeat
3. Primate testes grafted into mice rapidly produce fertile sperm
4. Primates trade smell for sight
5. Duke commits to enhance Primate Center
6. Primate genus sheds light on great ape and human origins, as reported in Science
7. News Backgrounder: Duke Primate Center Successfully Fosters Mysterious Aye-Ayes
8. Births Of Rare Lemurs At Duke Primate Center
9. Juliet Evades Primate Center Expedition
10. Duke Primate Center Sets October Expedition To Find Juliet
11. Researchers determine genetic cause of Timothy syndrome

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:9/12/2018)... Calif. (PRWEB) , ... September 10, 2018 , ... ... a paper detailing the performance of its new Multiplexed Ion Beam Imaging (MIBITM) ... September 6 issue. This study will also be shared during a webinar presented ...
(Date:9/7/2018)... ... September 05, 2018 , ... ... mAb manufacturing facility late last year, IPS-Integrated Project Services, LLC and G-CON Manufacturing ... autologous cell therapies. The iCON solution provides a pre-fabricated modular cleanroom infrastructure for ...
(Date:8/31/2018)... , ... August 30, 2018 , ... ... offering a complimentary cryogenic freezer program for new clients. The freezers are very ... regenerative biologics from R3 Stem Cell consist of amniotic and umbilical cord tissue. ...
Breaking Biology News(10 mins):
(Date:8/31/2018)... ... August 30, 2018 , ... Small, wireless and networked describes more than the ... connected, too. Draper’s latest system is tiny in size, but is poised to make ... in the new implant design is the growing awareness that disease often involves complex ...
(Date:8/29/2018)... Calif. (PRWEB) , ... August 28, 2018 , ... ... scientists from around the world, is proud to announce the launch of a new ... offers for a chance to win one of LabRoots most popular shirts. , Throughout ...
(Date:8/23/2018)... ... August 23, 2018 , ... Visikol began ... Dr. Thomas Villani. Through support from advisors, mentors, the Rutgers Technology Transfer team and ... Visikol’s path from an idea to a successful biotech company has been a circuitous ...
(Date:8/17/2018)... (PRWEB) , ... August 16, 2018 , ... ... testing, announced their results from the AmbryShare project were published today in JAMA ... in the largest exome study ever conducted. , Every year hereditary breast cancer ...
Breaking Biology Technology:
Cached News: