HOME >> MEDICINE >> NEWS
Glucose levels trigger compensation for type 2 diabetics

Many individuals with type 2 diabetes are diabetic because the cells of their body no longer respond to the hormone insulin, which is crucial for lowering blood sugar levels (blood glucose levels). However, before individuals become clinically diabetic their body tries to compensate for the increasing resistance to the effects of insulin by increasing both the amount of insulin secreted and the mass of insulin-secreting cells (beta cells) in the pancreas. Several factors have been shown to induce an increase in beta-cell mass, but exactly what triggers this in individuals consuming a high-fat diet has not been clearly established.

In a study appearing in the January issue of the Journal of Clinical Investigation, Takashi Kadowaki and colleagues from the University of Tokyo, Japan, show that in mice with high-fat dietinduced insulin resistance, changes in glucose concentration are likely to be the main trigger of increased beta-cell mass. The beta-cell mass of mice expressing only one copy of the gene encoding the sensor of blood glucose levels, GCK (Gck-/- mice), showed little increase compared with wild-type mice fed a high-fat diet, and the mice developed diabetes. One important mediator of the beta-cell mass increase downstream of GCK sensing increased blood glucose levels, and was shown to be IRS2, as expression of IRS2 in Gck-/- mice partially prevented diabetes by increasing beta-cell mass. The authors therefore suggest that novel strategies to increase beta-cell mass to treat type 2 diabetes and overcome high-fat dietinduced insulin resistance might be developed if the mechanism linking GCK and IRS2 can be determined. However, in an accompanying commentary, Gordon Weir and Susan Bonner-Weir from the Joslin Diabetes Center remind us that before we develop new therapeutics "it is essential that glucose signals involved in beta-cell replication in both health and disease be carefully defined."


'"/>

Contact: Brooke Grindlinger
press_releases@the-jci.org
212-342-9006
Journal of Clinical Investigation
2-Jan-2007


Page: 1

Related medicine news :

1. Even low levels of weekly exercise drive down blood pressure
2. Low hospital staff levels increase infection rates
3. SCHIP funding levels too low ACP tells Senate Finance Committee Leaders
4. Liver cancer patients with high serum levels of hepatitis B virus face poorer outcomes
5. Exercise may slightly boost good cholesterol levels
6. Coffee consumption may lower blood uric acid levels -- the precursor of gout
7. Different type of iron supplement is better at boosting iron levels
8. Yoga and elevated brain GABA levels
9. Statin use linked with decreased prostate cancer mortality rates, lower PSA levels
10. Low physical activity can improve fitness levels for sedentary, overweight postmenopausal women
11. Neglected epidemic of chronic lung disease; childhood conditions affect adult progesterone levels

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


(Date:6/24/2016)... ... ... June 19, 2016 is World Sickle Cell Observance Day. In an effort ... holistic treatments, Serenity Recovery Center of Marne, Michigan, has issued a pain ... Disease (SCD) is a disorder of the red blood cells, which can cause episodes ...
(Date:6/24/2016)... Fla. (PRWEB) , ... June 24, 2016 , ... Global ... Trend magazine’s 2016 Legal Elite. The attorneys chosen by their peers for this recognition ... Florida. , Seven Greenberg Traurig Shareholders received special honors as members of this year’s ...
(Date:6/24/2016)... ... 2016 , ... Topical BioMedics, Inc, makers of Topricin and MyPainAway Pain Relief Products, join The ... raise to $12 an hour by 2020 and then adjusting it yearly to increase at ... the minimum wage, assure the wage floor does not erode again, and make future increases ...
(Date:6/24/2016)... New York, NY (PRWEB) , ... June 24, ... ... lifestyle publication Haute Living, is proud to recognize Dr. Barry M. Weintraub as ... believes that “the most beautiful women in the world, and the most handsome ...
(Date:6/24/2016)... ... June 24, 2016 , ... National recruitment firm Slone Partners ... with extensive sequencing and genomics experience, as Vice President of North American Capital Sales ... be responsible for leading the sales team in the commercialization of the HTG EdgeSeq ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 24, 2016  Consumers have taken a more ... placed more emphasis on patient outcomes. ... in the pharmaceutical industry have evolved beyond just ... companies are focusing on becoming more patient-oriented across ... and services that improve health. ...
(Date:6/24/2016)... 2016   Bay Area Lyme Foundation , ... Center for Tick Borne Illness , Harvard Medical ... Hacking Medicine, University of California, Berkeley, and the ... five finalists of Lyme Innovation , the ... 100 scientists, clinicians, researchers, entrepreneurs, and investors from ...
(Date:6/24/2016)... Va. , June 24, 2016 The ... set of recommendations that would allow biopharmaceutical ... (HCEI) with entities that make formulary and coverage decisions, ... the "value" of new medicines. The recommendations ... does not appear on the drug label, a prohibition ...
Breaking Medicine Technology:
Cached News: