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 New flexible, transparent, wearable biopatch, improves cellular observation, drug delivery
12.11.2018 | Purdue University

nachricht Exosomes 'swarm' to protect against bacteria inhaled through the nose
12.11.2018 | Massachusetts Eye and Ear Infirmary

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: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

Im Focus: Coping with errors in the quantum age

Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly

The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...

Im Focus: Nanorobots propel through the eye

Scientists developed specially coated nanometer-sized vehicles that can be actively moved through dense tissue like the vitreous of the eye. So far, the transport of nano-vehicles has only been demonstrated in model systems or biological fluids, but not in real tissue. The work was published in the journal Science Advances and constitutes one step further towards nanorobots becoming minimally-invasive tools for precisely delivering medicine to where it is needed.

Researchers of the “Micro, Nano and Molecular Systems” Lab at the Max Planck Institute for Intelligent Systems in Stuttgart, together with an international...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

In focus: Peptides, the “little brothers and sisters” of proteins

12.11.2018 | Life Sciences

Materials scientist creates fabric alternative to batteries for wearable devices

12.11.2018 | Materials Sciences

A two-atom quantum duet

12.11.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>