Cell Metabolism News and Research

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Scientists review damage-control in metabolism

In this week's issue of the prestigious journal Nature Chemical Biology, scientists Carole Linster (University of Luxembourg), Emile Van Schaftingen (Louvain University), and Andrew D. Hanson (University of Florida, Gainesville) review an important, but so far neglected, part of metabolism, namely metabolite damage-control.

31 Jan 2013

Researchers create CoQ9-deficient mutant mouse model with mitochondrial encephalomyopathy

At three to six months of life, this genetic alteration in mice -similar to that occurred in human- causes a rapid degeneration in the lower limbs to death for cardiac arrest.

30 Jan 2013

Spacemen upset sodium balance theories

Levels of salt in the body and sodium in the urine fluctuate over fixed cycles that are independent of salt intake, shows a space simulation study.

15 Jan 2013

Several genes may control body-fat responses to fast-food diets

Researchers at UCLA say it's not just what you eat that makes those pants tighter - it's also genetics. In a new study, scientists discovered that body-fat responses to a typical fast-food diet are determined in large part by genetic factors, and they have identified several genes they say may control those responses.

10 Jan 2013

Leptin hormone also regulates airway diameter

A new study led by Columbia University Medical Center (CUMC) researchers has found that leptin, a hormone that plays a key role in energy metabolism, fertility, and bone mass, also regulates airway diameter.

9 Jan 2013

Metabolic stress can increase onset of atrial fibrillation

Researchers have found new evidence that metabolic stress can increase the onset of atrial arrhythmias, such as atrial fibrillation (AF), a common heart condition that causes an irregular and often abnormally fast heart rate.

9 Jan 2013

Body's sodium levels fluctuate rhythmically with 7-day and monthly cycles

Clinical pharmacologist Jens Titze, M.D., knew he had a one-of-a-kind scientific opportunity: the Russians were going to simulate a flight to Mars, and he was invited to study the participating cosmonauts.

9 Jan 2013

Key regulator of energy metabolism in cancer cells may play a crucial role in restricting cancer cell growth

Researchers at McGill University have discovered that a key regulator of energy metabolism in cancer cells known as the AMP-activated protein kinase (AMPK) may play a crucial role in restricting cancer cell growth. AMPK acts as a "fuel gauge" in cells; AMPK is turned on when it senses changes in energy levels, and helps to change metabolism when energy levels are low, such as during exercise or when fasting.

28 Dec 2012

Myostatin responsible for initiation of muscle loss: Study

A research study from Nanyang Technological University (NTU) has yielded important breakthroughs on how the body loses muscle, paving the way for new treatments for aging, obesity and diabetes.

19 Dec 2012

Scientists determine specific genetic switches that sync liver activity to the circadian cycle

When it's dark, and we start to fall asleep, most of us think we're tired because our bodies need rest. Yet circadian rhythms affect our bodies not just on a global scale, but at the level of individual organs, and even genes.

12 Dec 2012

NCI-funded study to identify metabolic vulnerabilities of particularly aggressive cancers

Eileen White, PhD, associate director for basic science at The Cancer Institute of New Jersey and professor of molecular biology and biochemistry at Rutgers, The State University of New Jersey, and colleagues from Princeton University have been awarded a new five-year, $2.4 million dollar research grant from the National Cancer Institute.

7 Dec 2012

Tyk2 enzyme helps regulate obesity through differentiation of brown adipose tissue

Approximately 68 percent of U.S. adults are overweight or obese, according to the National Cancer Institute, which puts them at greater risk for developing cancer, cardiovascular disease, diabetes and a host of other chronic illnesses. But an international team of scientists led by Virginia Commonwealth University Massey Cancer Center researcher Andrew Larner, M.D., Ph.D., has successfully reversed obesity in mice by manipulating the production of an enzyme known as tyrosine-protein kinase-2 (Tyk2).

6 Dec 2012

New paper describes MCUR1 protein and its function

Most healthy cells rely on a complicated process to produce the fuel ATP. Knowing how ATP is produced by the cell's energy storehouse - the mitochondria -- is important for understanding a cell's normal state, as well as what happens when things go wrong, for example in cancer, cardiovascular disease, neurodegeneration, and many rare disorders of the mitochondria.

29 Nov 2012

Synthetic membrane channels can be constructed through DNA nanotechnology

As reported in the journal Science, physicists at the Technische Universitaet Muenchen (TUM) and the University of Michigan have shown that synthetic membrane channels can be constructed through "DNA nanotechnology."

21 Nov 2012

Link between SFRP4 protein and risk of type 2 diabetes

When a patient is diagnosed with type 2 diabetes, the disease has usually already progressed over several years and damage to areas such as blood vessels and eyes has already taken place. To find a test that indicates who is at risk at an early stage would be valuable, as it would enable preventive treatment to be put in place.

7 Nov 2012

Vitamin D deficiency: an interview with Kellie Bilinski

We know that vitamin D is important in keeping bones strong. In the last 30-40 years it has also been realized that vitamin D has a lot of other roles in the body. Vitamin D essentially has a role in any cell in the body that has a vitamin D receptor.

5 Nov 2012

CSHL scientists discover new way to specifically target and kill cancer cells

Cancer cells grow fast. That's an essential characteristic of what makes them cancer cells. They've crashed through all the cell-cycle checkpoints and are continuously growing and dividing, far outstripping our normal cells. To do this they need to speed up their metabolism.

1 Nov 2012

Resveratrol does not appear to offer metabolic benefits in healthy women

Resveratrol, an ingredient in red wine thought to improve insulin sensitivity, reduce risk of heart disease and increase longevity, does not appear to offer these benefits in healthy women, new research at Washington University School of Medicine in St. Louis indicates.

26 Oct 2012

Study identifies essential mechanism that regulates calcium flow into mitochondria

26 Oct 2012

Study sheds light on how overeating can lead to obesity and diabetes

New research from Mount Sinai School of Medicine sheds light on how overeating can cause a malfunction in brain insulin signaling, and lead to obesity and diabetes. Christoph Buettner, MD, PhD, Associate Professor of Medicine (Endocrinology, Diabetes and Bone Disease) and his research team found that overeating impairs the ability of brain insulin to suppress the breakdown of fat in adipose tissue.

19 Oct 2012