Latest Cellular respiration Stories

Researchers at the RIKEN SPring-8 Center in Harima, Japan have clarified the crystal structure of quinol dependent nitric oxide reductase (qNOR), a bacterial enzyme that offers clues on the origins of our earliest oxygen-breathing ancestors. In addition to their importance to fundamental science, the findings provide key insights into the production of nitrogen oxide, an ozone-depleting and greenhouse gas hundreds of times more potent than carbon dioxide. As the central process by which...

Bel Marra Nutritionals, a leading nutritional supplement company has introduced a new supplement formulated to help optimize and maintain a healthy heart. Toronto, Canada (PRWEB) January 22, 2012 Bel Marra Nutritionals, a leading nutritional supplement company has introduced a new supplement formulated to help optimize and maintain a healthy heart. Heart Rescue Formula is a breakthrough supplement designed to reduce the risk of heart attack, strengthen the heart muscle and maintain...

Experiments on animals have been the subject of criticism for decades, but there is no prospect of a move away from them any time soon. The number of tests involving laboratory animals has in fact gone up. Now, researchers have found an alternative approach: they hope sensor nanoparticles will reduce the need for animal testing. Countless mice, rats and rabbits die every year in the name of science – and the situation is getting worse. While German laboratories used some 2.41 million...

Aging-related tissue degeneration can be caused by mitochondrial dysfunction in tissue stem cells. The research group of Professor Anu Suomalainen Wartiovaara in Helsinki University, with their collaborators in Max Planck Institute for Biology of Aging, Karolinska Institutet and University of Wisconsin reported on the 3rd January in Cell Metabolism their results on mechanisms of aging-associated degeneration. Stem cells are called the spare parts for tissues, as they maintain and repair...

A generally accepted 44-year-old assumption about how certain kinds of bacteria make energy and synthesize cell materials has been shown to be incorrect by a team of scientists led by Donald Bryant, the Ernest C. Pollard Professor of Biotechnology at Penn State University and a research professor in the Department of Chemistry and Biochemistry at Montana State University. The research, which will be published in the journal Science on 16 December 2011, is expected to help scientists discover...

The Science Magazine EurekaMag.com publishes articles in all areas of biological science. The latest articles cover Abalone which are small to very large edible sea snails, the Krebs Cycle which is a cycle of chemical reactions used by all aerobic living organisms to generate energy, and Clostridium which is a genus of bacteria with multiple bio-industrial uses. Mannheim, Germany (PRWEB) December 09, 2011 The Biology Magazine EurekaMag.com publishes articles in all areas of biological...

Finding could lead to new cancer-stopping therapies A research team led by UT Southwestern Medical Center scientists has identified an atypical metabolic pathway unique to some tumors, possibly providing a future target for drugs that could reduce or halt the spread of cancer. Dr. Ralph DeBerardinis, senior author of the study published Nov. 20 in Nature, likened the newly discovered pathway to traffic that is rerouted during a highway construction project. "If we hone in on this...

Reducing a protein called Siah2 in mice improves mitochondrial response to low oxygen, a condition cells experience when blood flow is restricted during a heart attack Mitochondria are often called cellular "powerhouses" because they convert nutrients into energy. But these tiny structures also help determine cellular lifespan. Scientists at Sanford-Burnham Medical Research Institute (Sanford-Burnham) are now discovering how mitochondria alternate between duplicating and fragmenting and...

Human pluripotent stem cells, which can develop into any cell type in the body, rely heavily on glycolysis, or sugar fermentation, to drive their metabolic activities. In contrast, mature cells in children and adults depend more on cell mitochondria to convert sugar and oxygen into carbon dioxide and water during a high energy-producing process called oxidative phosphorylation for their metabolic needs. How cells progress from one form of energy production to another during development...

Study of hereditary Parkinson's finds that mitochondria can't be cleared out when damaged Current thinking about Parkinson's disease is that it's a disorder of mitochondria, the energy-producing organelles inside cells, causing neurons in the brain's substantia nigra to die or become impaired. A study from Children's Hospital Boston now shows that genetic mutations causing a hereditary form of Parkinson's disease cause mitochondria to run amok inside the cell, leaving the cell without a...