Mouse Model News and Research

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Q. What turns an obese person into a person with diabetes? - A. Leptin

Twin epidemics of obesity and type 2 diabetes are bearing down on the world's population, threatening the lives of hundreds of millions of people. But scientists are still trying to determine how the two conditions are linked, and what it takes to turn an obese person into a person with diabetes.

16 Mar 2005

New cancer drug looks promising

Dr. E. Premkumar Reddy from Temple University School of Medicine and colleagues, in a study examining the effects of Plk1 inhibitor ON01910 on tumor growth in several animal models have found that a small molecule inhibitor of polo-like kinase1 (Plk1) could lead to a new avenue for targeted cancer therapy.

14 Mar 2005

St. John's wort increases effectiveness of Plavix

The widely used herbal remedy St. John's wort appears to amplify the action of the popular blood-thinning drug clopidogrel, sold as Plavix, a small new clinical study finds.

6 Mar 2005

Scientists gain new insight into DiGeorge syndrome

A collaboration of European scientists has uncovered new insight into the most common chromosomal microdeletion syndrome in humans.

28 Feb 2005

Scientists have regenerated a damaged optic nerve

This achievement, which occurred in laboratory mice and is described in the March 1, 2005 issue of the Journal of Cell Science, holds great promise for victims of diseases that destroy the optic nerve, and for sufferers of central nervous system injuries.

24 Feb 2005

Animal study on vascular effects of COX-2 inhibition

In an article by Egan et al, titled, "Cyclooxygenases, Thromboxane, and Atherosclerosis," published in the Jan 17 issue of Circulation: Journal of the American Heart Association researchers examined some of the molecular mechanisms of drugs affecting prostaglandin and thromboxane production.

17 Jan 2005

Further evidence for the role of cyclooxygenases (COX) in heart-disease risk

In two articles, published in Circulation, researchers from the University of Pennsylvania School of Medicine provide further evidence for the role of cyclooxygenases (COX) in heart-disease risk.

17 Jan 2005

Low carbohydrate diet may prevent Alzheimer's disease

Researchers found that a low carbohydrate diet that reduced total caloric intake by 30% prevented the development of a fundamental feature of Alzheimer's disease (AD) in mice genetically engineered to develop the disease. The diet eliminated amyloid plaque development, which is the underlying pathology in AD.

12 Jan 2005

Antibiotics protect nerves in mice by turning on genes

A family of antibiotics that includes penicillin may help prevent nerve damage and death in a wide variety of neurological diseases, including Lou Gehrig's disease, dementia, stroke, and epilepsy, Johns Hopkins researchers have found.

6 Jan 2005

Evidence suggests that changes in the bacteria and fungi in the gastrointestinal tract can intensify the immune system's reaction to common allergens

If you want to avoid allergies or asthma, scientists at the University of Michigan Medical School suggest you start paying more attention to what's in your gut.

23 Dec 2004

Turning off cell suicide switch fails to stop prion damage

Researchers knew that prions, the misfolded proteins that cause mad cow disease and other brain disorders, were killing off a class of important brain cells in a transgenic mouse model. But when they found a way to rescue those cells, they were astonished to discover the mice still became sick.

21 Dec 2004

Cancer drug paclitaxel may reduce the adverse effects of Alzheimer's disease

In a preclinical efficacy trial, the cancer drug paclitaxel (Paxceed)–which exerts its effects by binding to and stabilizing microtubules inside cells–reduced the adverse effects of Alzheimer's disease (AD)-like pathology in a mouse model.

20 Dec 2004

Wiping out a protein in skin cancer cells could significantly stall melanoma tumor development

The protein, Akt3, appears to be responsible for promoting tumor cell survival and development in 43 percent to 60 percent of non-inherited melanomas.

13 Dec 2004

First gene therapy for skin cancer

Researchers at UT Southwestern Medical Center at Dallas have successfully tested the first gene therapy for skin cancer, using a mouse model for the disease xeroderma pigmentosum, or XP.

13 Dec 2004

New advances in sickle cell disease

Excruciating pain episodes, recurrent pneumonias, strokes, severe infections, chronic hemolytic anemia, and secondary pulmonary hypertension are common complications of sickle cell disease, a life-threatening inherited defect in blood that causes normally disc-shaped red blood cells to take on a sickle shape.

6 Dec 2004

Next-generation therapeutics with the potential to successfully treat Lou Gehrig's disease

The hopes of many that ALS (commonly referred to as Lou Gehrig's disease) will one day be a disease of the past, studied in medical textbooks, conquered by the dedication of those who have worked tirelessly to eradicate it might be realized in our lifetime.

6 Dec 2004

Genetic mutations and cellular modifications may provide clues to the associations between slight genetic abnormalities and often fatal diseases

Modern research is delving deep into the human genome to find the answers to medical mysteries and, hopefully, cures for the most deadly diseases. According to four new studies presented during the 46th Annual Meeting of the American Society of Hematology

5 Dec 2004

Celebrex may one day be used to prevent and even treat breast tumors

The anti-inflammatory drug Celebrex, or celecoxib, reduces tumor mass by encouraging cell death and discouraging both cell proliferation and the sprouting of new blood vessels that feed growing tumors, according to a study reported in the November issue of Molecular Cancer Research.

5 Nov 2004

Body's 'internal marijuana': A new target for treatment of schizophrenia, Parkinson's?

“Endocannabinoids” is an impressive word that sounds like the name for a group of tribal warriors or an ancient people. Actually, it is the scientific term for beneficial molecules produced in the brain that act as “a sort of internal marijuana in our system

4 Nov 2004

Scientists have uncovered a significant new link in the chain of immune system events through which estrogen prevents bone loss

Through research in mice, the scientists discovered that an immune signaling molecule called type b transforming growth factor (TGFb) is responsible for a cascade of events that leads estrogen to prevent bone loss.

29 Oct 2004