Cell Metabolism News and Research

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Changes in mtDNA can cause premature ageing

The normal ageing process has long been linked to problems with cell respiration, the process through which the cells extract energy from nutrients. Researchers at the Swedish medical university Karolinska Institutet have now shown how certain proteins that are synthesised in the cellular mitochondria - popularly known as the cells' power plants - become unstable and disintegrate, which in turn can impair cell respiration and cause premature ageing.

7 Aug 2009

New approach targets gut hormone to lower blood sugar levels

A research team led by Dr. Tony Lam at the Toronto General Research Institute and the University of Toronto discovered a novel function of a hormone found in the gut that might potentially lower glucose levels in diabetes.

6 Aug 2009

Unstable proteins can cause premature ageing

The normal ageing process has long been linked to problems with cell respiration, the process through which the cells extract energy from nutrients.

6 Aug 2009

Leptin influences baseline dopamine levels and motivation to eat

As we all know from experience, people eat not only because they are hungry, but also because the food just simply tastes too good to pass up. Now, a new study in the August 6th Cell Metabolism, a Cell Press publication, helps to explain how leptin, a hormone produced by fat tissue, influences that motivation to eat.

5 Aug 2009

Discovery of novel function of hormone found in gut that may lower glucose levels in diabetes

5 Aug 2009

Identification of cholesterol regulating genes by targeted RNAi-screening

Scientists at the European Molecular Biology Laboratory (EMBL) and the University of Heidelberg, Germany, have come a step closer to understanding how cholesterol levels are regulated. In a study published today in the journal Cell Metabolism, the researchers identified 20 genes that are involved in this process. Besides giving scientists a better idea of where to look to uncover the mechanisms that ensure cholesterol balance is maintained, the discovery could lead to new treatments for cholesterol-related diseases.

7 Jul 2009

Stopping fatty change in heart cells

Heart failure is one of the world's most frequent causes of death - caused by conditions such as diabetes and obesity. With people who are overweight, the heart has to do more work in order to pump the blood through the circulatory system and this causes an increase in blood pressure.

4 Jun 2009

Greater understanding on leptin's role in brain neurocircuitry

In investigating the complex neurocircuitry behind weight gain and glucose control, scientists have known that the hormone leptin plays a key role in the process. But within the myriad twists and turns of the brain's intricate landscape, the exact pathways that the hormone travels to exert its influence have remained a mystery.

2 Jun 2009

Discovery of gene that controls sugar production, implications for diabetes

Scientists in Sydney and Boston believe they may have identified a gene that controls abnormal production of sugar in the liver, a very troublesome problem for people with diabetes.

22 May 2009

Rapid test for prostate cancer

Researchers have developed the test by using light energy to measure the level of citrate in fluid samples from the prostate gland. The technique could provide the basis of a rapid means of detecting prostate cancer in the future. Almost a quarter of male cancers in the UK are diagnosed as prostate cancer and more than 10,000 men die from the disease each year.

18 May 2009

Oxidation of potassium channel in cells linked to loss of neuronal function in aging

Researchers at UMDNJ-Robert Wood Johnson Medical School are one step closer to determining how human cells can be protected against the affects of age-related neurodegeneration including Alzheimer's and Parkinson's disease.

12 May 2009

Research shows why certain atherosclerotic lesions can turn deadly

A common misconception about arterial plaque is that it inevitably leads to a heart attack or a stroke. New research at Columbia University Medical Center, however, sheds light on why so few plaques in any given individual actually cause a problem. Furthermore, the research has identified a key protein that may promote the conversion from benign to dangerous plaques.

5 May 2009

Drugs designed to tackle endoplasmic reticulum stress might be useful in treating heart disease

Researchers say they have evidence to explain what separates your average blood vessel plaque from those that are at high risk for triggering the development of dangerous - even fatal - blood clots.

5 May 2009

Too much dietary protein and fat may lead to insulin resistance

A clue about the blood chemistry of obese people who develop insulin resistance, a precursor to diabetes, has been confirmed in animal studies at the Duke University Medical Center.

8 Apr 2009

Research finds insulin plays a key role in suppressing levels of glucagon

Researchers at the Joslin Diabetes Center have shown for the first time that insulin plays a key role in suppressing levels of glucagon, a hormone involved in carbohydrate metabolism and regulating blood glucose levels.

8 Apr 2009

Diets high in fat and protein are most dangerous

It's basically a given that diets loaded with fat can lead to considerable health problems.

8 Apr 2009

Inflammatory chemokine may explain diseases that come with obesity

An inflammatory factor already linked to several diseases, including pulmonary disease, lung cancer, and arthritis, may also be responsible for the insulin resistance that comes with obesity, according to a new study published in the April issue of Cell Metabolism.

8 Apr 2009