Navigation Links
'Fasting Signal' Offers Clues to Insulin Resistance in the Obese

Drugs blocking this communication may offer therapeutic benefits, mouse study finds

TUESDAY, March 3 (HealthDay News) -- A signal known to play a role during fasting also becomes active in the fat tissue of obese mice in the early stages of progression toward type 2 diabetes, say researchers. They also found that blocking this signal in fat tissue prevents insulin resistance in obese mice.

Previous research found that the CREB pathway keeps blood sugar in balance during fasting by triggering glucose production in the liver. It's also been found that excessive CREB activity in diabetes contributes to high blood sugar and insulin resistance.

In this new study, researchers at the Salk Institute for Biological Studies investigated whether CREB was important in mature fat tissues as well. They found that CREB activity in fat cells in obese mice encourages insulin resistance by lowering the production of a hormone called adiponectin and the insulin-sensitive glucose transporter 4 (GLUT4).

Obese mice genetically altered to lack CREB in fat cells became more sensitive to insulin and were also protected from the development of fatty liver and inflammation in fat tissue. CREB seemed relatively unimportant in healthy mice, but in obese mice, the signal appears to be "doing something more pathological."

The findings suggest the "stress of obesity activates CREB genes and contributes to insulin resistance," noted Marc Montminy and colleagues.

"Taken together, these results show that targeting therapies to adipose tissue and, in particular, to the CREB signaling system could have important therapeutic benefits in a variety of insulin-resistant states," the researchers concluded.

The study was published in the March issue of Cell Metabolism.

More information

The U.S. National Institute of Diabetes and Digestive and Kidney Diseases has more about insulin resistance and pre-diabetes.

-- Robert Preidt

SOURCE: Cell Press, news release, March 3, 2009

Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Bowel prep oral sodium phosphate equal to fasting before capsule endoscopy for obscure GI bleeding
2. Prolonged Fasting Boosts Risk of Rare Stroke
3. Fasting Before Chemo Protects Healthy Cells
4. Schizophrenia linked to signaling problems in new brain study
5. Vitamin A signals offer clues to treating autoimmunity
6. Actuaries: Priority on Health Reform and Retirement Security Signals Tough Choices Ahead
7. Redpine Signals Launches SenSiFi(TM), An Ultra Low-Power 802.11n (Wi-Fi(R)) Wireless Sensor Module
8. Dynatronics Reports Profitable Second Quarter - Signaling Significant Improvement Over Prior Year Results
9. Spinal fluid proteins signal Lou Gehrigs disease
10. Sleep Disorder Could Signal Neurological Disease
11. Signaling between protein, growth factor is critical for coordinated cell migration
Post Your Comments:
Related Image:
'Fasting Signal' Offers Clues to Insulin Resistance in the Obese
(Date:11/25/2015)... ... 25, 2015 , ... Lakeview Health, a Jacksonville-based drug and ... sobriety and show through pictures what a positive difference it makes. The social ... the hashtag #FacesOfGratitude on their Facebook, Twitter, and Instagram accounts. Short stories ...
(Date:11/25/2015)... , ... November 25, 2015 , ... The McHenry County ... recent successful appellate decision obtained by Attorneys Francisco J. Botto and Alex C. Wimmer. ... Illinois Workers’ Compensation Comm’n, 2015 IL App (2d) 130884WC. , According to court documents, ...
(Date:11/25/2015)... ... November 25, 2015 , ... Beddit® has launched a new Android ... The new app features a more intuitive SleepScore™ that rates sleep quality on a ... The SleepScore is created by a proprietary algorithm. Beddit analyzes the data to provide ...
(Date:11/25/2015)... ... November 25, 2015 , ... Today, Mothers Against Drunk Driving (MADD) ... below 10,000 for the first time since 2011. In 2014, there were 9,967 fatalities ... released by the National Highway Traffic Safety Administration (NHTSA), 32,675 people were killed in ...
(Date:11/25/2015)... ... 2015 , ... Privately owned Contract Development and Manufacturing Organization ... current state of the art research, development and manufacturing facility outside of Fort ... capacity as well as to support its clients’ growing research and development and ...
Breaking Medicine News(10 mins):
(Date:11/25/2015)... 25, 2015 On Tuesday, November 24, ... trial against Wright Medical Technology, Inc. for product ... metal-on-metal hip implant device, awarded $11 million in ... week trial and three days of deliberations, the ... was defectively designed and unreasonably dangerous, and that ...
(Date:11/25/2015)... 25, 2015 Kitov Pharma ... KTOV), a biopharmaceutical company focused on the development of ... conditions, today announced the closing of its previously announced ... ADSs ), each representing 20 ordinary shares of the ... The ADSs and warrants were issued in a fixed ...
(Date:11/25/2015)... DIEGO , Nov. 25, 2015  Today AVACEN Medical announced the issue of ... Thermal Energy Including Blood Viscosity Adjustment ". This patent shields the company,s AVACEN 100 dry heat ... Treatment Method. Photo - ... ... ...
Breaking Medicine Technology: