Metabolism News and Research

Latest Metabolism News and Research

GM mice live longer and give hope for anti-aging treatments

U.S. scientists have produced genetically modified mice that live 20 per cent longer than normal and may have possibly discovered an approach to extending the human lifespan.

8 May 2005

Scientists extend the lifespan of mice

Scientists at the University of Washington and their colleagues at other research centers have found a way to significantly extend the lifespan of mice while reducing the impact of the aging process. Their study, which will be published online by the journal Science on May 5, lends more credence to the free-radical theory of aging.

5 May 2005

Penn researchers demonstrate that a metabolic enzyme works through the tumor-suppressor protein p53 to control cellular replication

Researchers at the University of Pennsylvania School of Medicine have identified in normal cells that a common metabolic enzyme, which acts as a rheostat of cellular conditions, also controls cell replication.

4 May 2005

People may consume more calories after exercising in cold water

Exercise in cold water instead of warm water may increase people's appetites, making it harder for them to lose extra pounds, a University of Florida study finds.

4 May 2005

Newly identified fly genes provide clue to tumour growth

Researchers from the Oxford University Department of Human Anatomy and Genetics have found a new class of genes that are critical for cell growth and may be involved in the uncontrolled growth that takes place in cancer. The discovery could provide a key to future tumour therapies.

4 May 2005

MRI study shows hormone leptin alters brains, may ease cravings of people with obesity gene

A magnetic resonance imaging (MRI) study finds that the protein hormone leptin promotes development of gray matter in the part of the brain that regulates cravings and the ability to monitor personal behavior.

4 May 2005

Mutated gene causes serious heart disease in newborns

The research group of professor Manfred Kilimann at the Department of Cell and Molecular Biology has elucidated the genetic cause of a severe heart disease in newborn children. This result will be published in the June issue of the American Journal of Human Genetics this week.

3 May 2005

Diabetes researchers look at pizza to find slow and steady insulin delivery wins the race

With its doughy, carbohydrate-dense crust and high fat content, pizza can wreak havoc in people with diabetes. A Penn State Diabetes Center study suggests a slow and steady insulin-dosing pattern may best combat the glucose-raising effects of that common favorite food.

3 May 2005

Babies show effects of mothers stress from 9/11 trauma

Pregnant women present during the September 11 World Trade Center collapse have passed on markers of Post Traumatic Stress Disorder (PTSD) to their unborn babies through transgenerational transmission. The findings strengthen the evidence for in utero or early life risk factors for the later development of adult mental or physical disorders.

3 May 2005

Traffic pollution may increase risk of breast cancer

Exposure to carcinogens in traffic emissions at particular lifetime points may increase the risk of developing breast cancer in women who are lifetime nonsmokers, a study by epidemiologists and geographers at the University at Buffalo has found.

1 May 2005

Tumors of the pituitary gland are more common than thought

A recent study found that tumors of the pituitary gland are more common than many health care professionals realize, with national prevalence rates averaging 16.7 percent. To neurosurgeon Dr. Gail Rosseau, this isn't surprising.

1 May 2005

Researchers determine mechanism of action of chemotherapy drug motexafin gadolinium

The chemotherapy drug motexafin gadolinium (brand name: Xcytrin, manufactured by Pharmacyclics, Inc.) works to thwart cancer cells by disrupting key enzymes involved in cellular metabolism, according to a team of researchers led by Joseph Hacia, Ph.D., assistant professor of biochemistry and molecular biology at the Keck School of Medicine of the University of Southern California.

1 May 2005

Research may re-define management of heart failure in diabetes

Control of oxidised copper levels in the body may be as important as lowering blood glucose levels in preventing cardiovascular complications in diabetes mellitus, according to New Zealand researchers.

28 Apr 2005

Physical activity appears to inhibit Alzheimer's

Physical activity appears to inhibit Alzheimer's-like brain changes in mice, slowing the development of a key feature of the disease, according to a new study.

26 Apr 2005

Use of positron emission tomography may eliminate more strenuous drug development trials with animals

A number of articles explore the use of positron emission tomography (PET) and small animal imaging—nonsurgical techniques that open the door to understanding and treating human diseases—in the April issue of the Society of Nuclear Medicine’s Journal of Nuclear Medicine.

26 Apr 2005

Mice put into "suspended animation" in U.S.

Researchers from the University of Washington and the Fred Hutchinson Cancer Research Centre in Seattle have placed mice in a state of near suspended animation, raising the possibility that in future hibernation could be induced in humans.

22 Apr 2005

Brain system that controls the sleep/wake cycle might also play a role in regulating appetite and metabolism

A new mouse study suggests that a brain system that controls the sleep/wake cycle might also play a role in regulating appetite and metabolism. Mice with a mutation in a gene called "Clock," which helps drive circadian rhythm, ate significantly more and gained more weight.

22 Apr 2005

Body's 24-hour internal clock linked to obesity and diabetes

Obesity and diabetes in both adults and children are rising at alarming rates and a wide range of culprits -- super-sized food portions, lack of exercise due to television, computers, suburban sprawl and loss of gym classes, high-fat and fast foods, sugar-laden drinks and psychological trauma -- have been blamed.

21 Apr 2005

Researchers study radiation blockers while conducting nuclear imaging of Iodine uptake in mouse tissues

Scientists have found that a dose five times higher than the FDA-recommended dosage of potassium iodide in the event of a nuclear accident is needed to protect small animals effectively from radioactive iodide in medical imaging procedures. The long-term animal nuclear imaging project is being conducted by a collaboration of biology and physics researchers from the Department of Energy's Jefferson Lab and The College of William & Mary (CWM).

20 Apr 2005

Drugs targeted at muscle cells can be of use in the treatment of diabetes patients with insulin resistance

Type 2 diabetes is a clinical disease characterised by disruption to the metabolism of glucose and lipids as well as to the production of and physiological reactions to insulin.

19 Apr 2005

Metabolism News and Research

Latest Metabolism News and Research

GM mice live longer and give hope for anti-aging treatments

Scientists extend the lifespan of mice

Penn researchers demonstrate that a metabolic enzyme works through the tumor-suppressor protein p53 to control cellular replication

People may consume more calories after exercising in cold water

Newly identified fly genes provide clue to tumour growth

MRI study shows hormone leptin alters brains, may ease cravings of people with obesity gene

Mutated gene causes serious heart disease in newborns

Diabetes researchers look at pizza to find slow and steady insulin delivery wins the race

Babies show effects of mothers stress from 9/11 trauma

Traffic pollution may increase risk of breast cancer

Tumors of the pituitary gland are more common than thought

Researchers determine mechanism of action of chemotherapy drug motexafin gadolinium

Research may re-define management of heart failure in diabetes

Physical activity appears to inhibit Alzheimer's

Use of positron emission tomography may eliminate more strenuous drug development trials with animals

Mice put into "suspended animation" in U.S.

Brain system that controls the sleep/wake cycle might also play a role in regulating appetite and metabolism

Body's 24-hour internal clock linked to obesity and diabetes

Researchers study radiation blockers while conducting nuclear imaging of Iodine uptake in mouse tissues

Drugs targeted at muscle cells can be of use in the treatment of diabetes patients with insulin resistance

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Expanding research and clinical options for children with cancer