Navigation Links
Popular diabetes drug works differently than thought
Date:5/4/2010

CINCINNATIThe popular diabetes medication metformin works in different fashion than the current widely accepted view. This new finding could lead to wider use of the drugparticularly in people with cancer and diseases linked to TSC deficiency like tuberous sclerosis and lymphangioleiomyomatosis (LAM).

The results of this study, led by George Thomas, PhD, scientific director of UC's Metabolic Diseases Institute, are published in the May 5 edition of Cell Metabolism.

Metformin, marketed first by Bristol-Myers Squibb as Glucophage and now available in generic form and a number of combinations, is widely prescribed to people with type 2 diabetes and may be extended to the treatment of certain cancers. The drug blocks the production of glucose (sugar) and increases sensitivity to insulina hormone that converts sugar and other foods into energy within the body.

Researchers have thought that metformin, an energy-deprivation agent, disables the mTOR (mammalian target of rapamycin) complex by first activating the tuberous sclerosis complex (TSC) proteins through the enzyme AMPK.

Thomas' team determined that mTOR could actually be disabled without AMPK, and even without TSC. The team was able to determine that metformin works to knock out mTOR through another enzyme, RAG GTPase.

"We've poked a hole in dogma," says Thomas, a professor in the cancer and cell biology department. "Scientists can and should go back and ask about things they had crossed off their list."

The importance of this finding, says Thomas, is the possibility it holds for broader use of metformin.

"Metformin is already prescribed to 100 million people worldwide, and our study raises the question, 'Could this drug be used even more widely?'"

A drug like metformin, which improves insulin sensitivity, could be seen as a possible viable alternative to drugs that target mTOR, but that may have long-term deleterious effects on insulin production. Type 2 diabetes results from the body's inability to properly use insulin. If left unmanaged, diabetes can lead to vision loss, kidney failure, heart attack, stroke and nerve or blood vessel damage.


'/>"/>

Contact: Dama Kimmon
dama.kimmon@uc.edu
513-558-4519
University of Cincinnati Academic Health Center
Source:Eurekalert

Related medicine news :

1. The Diet Solution Program: Popular Online Weight Loss Program is Revised to Include More Metabolism Boosting Meals
2. Quantity, Not Quality, of Online Posts Builds Popularity
3. Passover paradox: The amazing popularity of kosher foods
4. Electronic Cigarettes Continue to Experience Popularity Growth
5. Future Apps Releases Major Update to its Popular iPhone Text to Speech App Speak it
6. "How Stupid Do They Think We Are?" --- Band Releases New Anthem in Support of Popular Citizens' Resistance
7. Intellimed's Popular Data Reporting Software IM-IC (Intelligent Client) Receives Latest Update
8. Personalized Live on-Demand Yoga Avatar Gains Popularity Amongst Users, Across all age Groups
9. Popular nanoparticle causes toxicity in fish, study shows
10. Popular Diet Plans Can Unclog Arteries
11. Americans Remain Split on Stalled Health Care Legislation, but Some Provisions Popular Among Majorities of Democrats, Independents and Republicans
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... , ... June 25, 2016 , ... "With 30 hand-drawn ... specific project," said Christina Austin - CEO of Pixel Film Studios. , ProHand ... all within Final Cut Pro X . Simply select a ProHand generator and ...
(Date:6/25/2016)... Oklahoma City, Oklahoma (PRWEB) , ... June 25, ... ... to helping both athletes and non-athletes recover from injury. Recently, he has implemented ... for the Oklahoma City area —Johnson is one of the first doctors to ...
(Date:6/24/2016)... ... 2016 , ... A recent article published June 14 on E ... goes on to state that individuals are now more comfortable seeking to undergo not ... as calf and cheek reduction. The Los Angeles area medical group, Beverly Hills Physicians ...
(Date:6/24/2016)... ... June 24, 2016 , ... Marcy was in a crisis. Her son James, eight, ... at his family verbally and physically. , “When something upset him, he couldn’t control his ... it. He would throw rocks at my other children and say he was going to ...
(Date:6/24/2016)... ... June 24, 2016 , ... Dr. Amanda ... orthodontic treatment. Dr. Cheng has extensive experience with all areas of orthodontics, including ... accelerated osteogenic orthodontics. , Micro-osteoperforation is a revolutionary adjunct to orthodontic treatment. ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)...  Collagen Matrix, Inc., ("Collagen Matrix") the driving ... collagen and mineral based medical devices for tissue ... Messer has joined the company as Vice ... growing portfolio of oral surgery, neurosurgery, orthopaedic and ... the Collagen Matrix executive team as an accomplished ...
(Date:6/24/2016)... June 24, 2016 The Academy of Managed ... recommendations that would allow biopharmaceutical companies to more ... that make formulary and coverage decisions, a move that ... new medicines. The recommendations address restrictions in ... on the drug label, a prohibition that hinders decision ...
(Date:6/24/2016)... --  Pulmatrix, Inc ., (NASDAQ: PULM ), ... today that it was added to the Russell Microcap ... set of U.S. and global equity indexes on June ... for Pulmatrix," said Chief Executive Officer Robert Clarke ... in developing drugs for crucial unmet medical needs, and ...
Breaking Medicine Technology: