Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

ERI patents treatments for insulin resistance in diabetes accompanying obesity

31.03.2004


Dr. Miles Brennan of the Eleanor Roosevelt Institute at the University of Denver (ERI) and Dr. Ute Hochgeschwender of the Oklahoma Medical Research Foundation have patented a method of reducing insulin resistance that could lead to potential treatments for diabetes accompanying obesity.



Insulin is a hormone that prompts cells to store glucose, a natural sugar, while another hormone called glucagon has the opposite effect, prompting cells to release stored glucose into the bloodstream. In healthy individuals the two hormones achieve homeostasis, or balance. Type II diabetes occurs when the body becomes resistant to insulin, preventing it from storing glucose. Because melanocyte-stimulating hormone (MSH) causes the pancreas to secrete glucagon, MSH must be present for type II diabetes to develop. Obesity and high cholesterol are risk factors for the disease, which leads to high blood pressure, strokes, heart attacks, blindness, kidney failure and possible amputation of the lower extremities.

The new process, which is described in U.S. Patent #6,689,938, is for treatment of diabetes by administering an antagonist of MSH. The patent covers the use of a whole class of MSH antagonists, chemicals that either remove the hormone from the system or which block the action of MSH in the bloodstream.


"Because type II diabetes is essentially an insensitivity to insulin action, we can now circumvent this resistance by working on the glucagon half of the circuit," explains Brennan. "If you’re insensitive to insulin, this approach may be able to bring you back into homeostasis by decreasing glucagon in the bloodstream."

Previous treatments for type II diabetes have focused on altering the amount of glucose in the bloodstream. Brennan and Hochgeschwender instead focused on regulating insulin resistance in genetically engineered mice by manipulating the amount of MSH in the bloodstream.

"It’s a whole new way of looking at diabetes," says Brennan. "People have been working on diabetes for years, and this is an entirely unexpected departure, both in understanding how diabetes works and also in treating it."

The patent also includes a method for identifying compounds useful for reducing insulin resistance in a patient with obesity or type II diabetes. That process works by administering a peptide compound with MSH to genetically engineered mice with a modified POMC gene, which is responsible for manufacturing MSH.

Administering different MSH compounds to mice with different modifications to the POMC gene stimulates the secretion of various other hormones, which can be further studied for their roles in insulin resistance. Another patent issued to the same inventors covers mice with a range of genetic modifications to the POMC gene. The genetic modifications create obese mice that, surprisingly, do not develop diabetes.


Denver’s Eleanor Roosevelt Institute (ERI) was founded in 1961 as a private, independent research center. ERI merged with the University of Denver in 2003. The Institute is staffed by leading scientists from around the world who study Down syndrome, Lou Gehrig’s disease, cancer, obesity, type II diabetes and other diseases and conditions. It is the mission of the Institute’s scientists to seek an in-depth understanding of the process of life and through this understanding, work towards unlocking the mysteries of human health and disease.

Warren Smith | EurekAlert!
Further information:
http://www.du.edu/

More articles from Health and Medicine:

nachricht Penn vet research identifies new target for taming Ebola
12.01.2017 | University of Pennsylvania

nachricht The strange double life of Dab2
10.01.2017 | University of Miami Miller School of Medicine

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

Im Focus: Bacterial Pac Man molecule snaps at sugar

Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.

The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...

Im Focus: Newly proposed reference datasets improve weather satellite data quality

UMD, NOAA collaboration demonstrates suitability of in-orbit datasets for weather satellite calibration

"Traffic and weather, together on the hour!" blasts your local radio station, while your smartphone knows the weather halfway across the world. A network of...

Im Focus: Repairing defects in fiber-reinforced plastics more efficiently

Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.

Defects in FRP pieces may be production or operation-related. Whether or not repair is cost-effective depends on the geometry of the defective area, the tools...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

Multiregional brain on a chip

16.01.2017 | Power and Electrical Engineering

New technology enables 5-D imaging in live animals, humans

16.01.2017 | Information Technology

Researchers develop environmentally friendly soy air filter

16.01.2017 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>