News tagged with mitochondria
Neuroscience May 23, 2013 | 4.9 / 5 (9) | 0 |
Swiss scientists reveal the mechanism responsible for aging hidden deep within mitochondria—and dramatically slow it down in worms by administering antibiotics to the young.
Medical research May 22, 2013 | 4.9 / 5 (13) | 2 |
(Medical Xpress)—UCLA life scientists have identified a gene previously implicated in Parkinson's disease that can delay the onset of aging and extend the healthy life span of fruit flies. The research, ...
Genetics May 06, 2013 | 4.8 / 5 (18) | 1 |
Scientists investigating the interaction of a group of proteins in the brain responsible for protecting nerve cells from damage have identified a new target that could increase cell survival.
Medical research May 17, 2013 | 5 / 5 (1) | 0
Faulty energy production in brain cells leads to disorders ranging from Parkinson's to intellectual disability
Neuroscientist Patrik Verstreken of VIB (Flanders Institute for Biotechnology) and KU Leuven has shown for the first time that dysfunctional mitochondria in brain cells can lead to learning disabilities. The link between ...
Parkinson's & Movement disorders May 17, 2013 | 4 / 5 (2) | 0
(Medical Xpress)—Investigation by researchers from the University of Exeter and ETH Zurich has shed new light on a protein which is linked to a common neurological disorder called Charcot-Marie-Tooth disease.
Neuroscience May 16, 2013 | not rated yet | 0 |
New study validates longevity pathway: Findings identify universal mechanism for activating anti-aging pathway
A new study demonstrates what researchers consider conclusive evidence that the red wine compound resveratrol directly activates a protein that promotes health and longevity in animal models. What's more, the researchers ...
Medical research Mar 07, 2013 | 4.8 / 5 (20) | 6 |
(Medical Xpress)—In the epic series Star Wars, the mysterious energy field known simply as, the Force, was communicated by microscopic endosymbionts known as midichlorians. Their real world counterparts, ...
Neuroscience Apr 03, 2013 | 4.8 / 5 (5) | 0 |
(Medical Xpress)—Neurons have developed elaborate mechanisms for transporting critical components, like transmitter-laden vesicles, down their axons to the synaptic terminations. An axon in a blue whale ...
Neuroscience Mar 25, 2013 | 5 / 5 (3) | 0 |
Researchers at the UCLA stem cell center and the departments of chemistry and biochemistry and pathology and laboratory medicine have identified, for the first time, a generic way to correct mutations in human mitochondrial ...
Medical research Mar 12, 2012 | 4.9 / 5 (13) | 3 |
The function of the mitochondria – also defined as "power plants" within the cells – is essential as to whether, and how, some chemotherapeutic agents take effect in tissue. Scientists at the Helmholtz ...
Cancer May 10, 2013 | not rated yet | 0
Researchers at Washington University School of Medicine in St. Louis have described a missing link in understanding how damage to the body's cellular power plants leads to Parkinson's disease and, perhaps ...
Medical research Apr 25, 2013 | 5 / 5 (6) | 0 |
The disrupted metabolism of sugar, fat and calcium is part of the process that causes the death of neurons in Alzheimer's disease. Researchers from Karolinska Institutet in Sweden have now shown, for the first time, how important ...
Alzheimer's disease & dementia Apr 22, 2013 | 5 / 5 (5) | 1 |
A class of anti-retroviral drugs commonly used to treat HIV, particularly in Africa and low income countries, can cause premature ageing, according to research published today in the journal Nature Genetics. The study shows ...
Genetics Jun 26, 2011 | 5 / 5 (1) | 0 |
Researchers in the Life Sciences Institute at the University of Michigan have challenged a long-held belief that whitening of skeletal muscle in diabetes is harmful.
Medical research Apr 07, 2013 | 4.9 / 5 (7) | 0 |
In cell biology, a mitochondrion (plural mitochondria) is a membrane-enclosed organelle found in most eukaryotic cells. These organelles range from 0.5–10 micrometers (μm) in diameter. Mitochondria are sometimes described as "cellular power plants" because they generate most of the cell's supply of adenosine triphosphate (ATP), used as a source of chemical energy. In addition to supplying cellular energy, mitochondria are involved in a range of other processes, such as signaling, cellular differentiation, cell death, as well as the control of the cell cycle and cell growth. Mitochondria have been implicated in several human diseases, including mitochondrial disorders and cardiac dysfunction, and may play a role in the aging process. The word mitochondrion comes from the Greek μίτος or mitos, thread + χονδρίον or khondrion, granule.
Several characteristics make mitochondria unique. The number of mitochondria in a cell varies widely by organism and tissue type. Many cells have only a single mitochondrion, whereas others can contain several thousand mitochondria. The organelle is composed of compartments that carry out specialized functions. These compartments or regions include the outer membrane, the intermembrane space, the inner membrane, and the cristae and matrix. Mitochondrial proteins vary depending on the tissue and the species. In humans, 615 distinct types of proteins have been identified from cardiac mitochondria; whereas in Murinae (rats), 940 proteins encoded by distinct genes have been reported. The mitochondrial proteome is thought to be dynamically regulated. Although most of a cell's DNA is contained in the cell nucleus, the mitochondrion has its own independent genome. Further, its DNA shows substantial similarity to bacterial genomes.
For more information about Mitochondrion, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.