HOME >> BIOLOGY >> NEWS
Eat less, weigh more? Enzyme makes lean mice 'susceptible' to dietary fat

Working with genetically engineered mice, Johns Hopkins scientists have interfered with the brain's ability to control an animal's response to a high-fat diet. The report, to be published in the latest issue of the Proceedings of the National Academy of Sciences online the week of May 1, is based on the identification of a gene - CPT1c - the brain needs to manage body weight.

According to the researchers, the CPT1c gene protects against weight gain caused by a high-fat diet. So-called knockout mice lacking the CPT1c gene gain more weight than their littermates carrying normal copies of the gene.

"We think our study reveals a direct weight management pathway," says Michael Wolfgang, Ph.D., a postdoctoral fellow in the Department of Biological Chemistry at The Johns Hopkins University School of Medicine and an author of the report. "CPT1c seems to allow the body to respond immediately to the level of nutrients and fat in the bloodstream."

Hopeful that the discovery has broad implications for understanding the genetic underpinnings of obesity and weight management, the Hopkins investigators say the work affirms the central role of the brain in managing hunger and satiety and offers up new targets for drugs that manipulate CPT1c. But none have been developed so far, says Wolfgang.

The newly discovered gene makes a protein found only in the brain, notably in the region that controls hunger, thirst and metabolism - the hypothalamus. Proteins similar to CPT1c are known to help break down fat to release energy to feed cells. Mice lacking the CPT1c gene are the same length as their littermates who carry normal copies of the gene but on average weigh 15 percent less when fed a low-fat diet.

Further analysis revealed that when deprived of food for four hours prior to feeding with standard laboratory mouse chow, the knockout mutant mice ate about 25 percent less food than their normal siblings. Therefore, the researchers conclude
'"/>

Contact: Audrey Huang
audrey@jhmi.edu
410-614-5105
Johns Hopkins Medical Institutions
2-May-2006


Page: 1 2 3

Related biology news :

1. Adult survivors of childhood leukemia exercise less, worsening high risk for obesity and illness
2. Losing weight after pregnancy -- diet and exercise better than diet alone
3. Fine particulate matter from traffic may influence birth weight
4. Nanotechnology: consumers must be convinced benefits outweigh risks
5. Researchers isolate new risk marker for overweight children
6. Lack of sun does not explain low vitamin D in elderly who are overweight
7. Its safe for obese moms-to-be to lose weight during pregnancy, new SLU research finds
8. Clock gene plays role in weight gain, study finds
9. 100 percent juice not associated with overweight in children
10. How does soy promote weight loss? University of Illinois scientist finds another clue
11. Milk beats soy for post-weighlifting muscle gain

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


(Date:8/5/2020)... ... , ... Regenative Labs has received approval from the Centers for Medicare & ... first Wharton’s jelly allografts to be assigned a Q code and be approved for ... Wharton’s jelly allograft product to be recognized as a 361 HCT/P by CMS regulated ...
(Date:7/18/2020)... ... July 16, 2020 , ... A study has been published ... Neoasis™ active noise control device to attenuate typical noises in a simulated neonatal ... the alarm sounds from patient monitors, ventilators and other bedside devices that would ...
(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. http://www.altrubio.com ... a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), at European ... J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, open-label Phase ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... FARMS, Mich. (PRWEB) , ... August 12, 2020 ... ... Consulting Group, Inc. (EMMA International), a global leader in FDA compliance consulting ... of the nation’s fastest-growing private companies. The list represents a unique look at ...
(Date:8/3/2020)... (PRWEB) , ... August 03, 2020 , ... ... collection, today announced Jim Corrigan, President and CEO has been named one of ... broad cross-section of industry sectors, PharmaVoice 100 honorees are selected based on how ...
(Date:7/31/2020)... ... July 29, 2020 , ... R3 Stem Cell International is ... $3950. With 50 million stem cells total, patients may choose which extremities they would ... for arthritic joints (BMC Musculoskelet Disord. 2016). At R3 International, umbilical cord tissue is ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... transmitter systems that can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. ... drive one or two switches in a push-pull configuration; yielding fast fall time ...
Breaking Biology Technology:
Cached News: