Mitochondrial Current Events | Mitochondrial News | 6
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Study: Popular supplement quercetin does not enhance athletic performance
The antioxidant quercetin is increasingly being marketed as a supplement that boosts athletic performance, but a new University of Georgia study finds that it is no better than a placebo. view more (2009-09-04)
Protein translation in sperm
A new paper in the February 15th issue of Genes & Development lends novel insight into the cellular changes that occur in sperm while they reside in the female reproductive tract. view more (2006-02-15)
Scientists discover ancient protein and DNA sequences in same fossil
For the first time in the world, researchers at the University of Newcastle upon Tyne, UK, along with collaborators at the University of Oxford, Harvard University, and Michigan State University have uncovered two genetically informative molecules from a single fossil bone. In addition to the recovery of mitochondrial DNA, the complete sequencing... view more... (2002-11-12)
Standing up to paraplegia with gene therapy
Elena Rugarli and colleagues from the National Neurological Institute in Milan have used gene therapy to save sensory and skeletal muscle nerve fibers from degeneration in mice with hereditary spastic paraplegia (HSP). view more (2005-12-16)
Y chromosome study sheds light on Athapaskan migration to southwest US
A large-scale genetic study of native North Americans offers new insights into the migration of a small group of Athapaskan natives from their subarctic home in northwest North America to the southwestern United States. The migration, which left no known archaeological trace, is believed to have occurred about 500 years ago. view more (2008-07-16)
New hereditary gene linked to Parkinson's disease
UCL scientists have discovered a new gene implicated in the early development of Parkinson's disease. In a study of families with early onset disease, Professor Nick Wood and colleagues at UCL's Institute of Neurology identified a novel gene which produces a malfunctioning protein that could pave the way for new treatments for Parkinson sufferers.... view more... (2004-04-15)
Dawn of human matrilineal diversity
A team of Genographic researchers and their collaborators have published the most extensive survey to date of African mitochondrial DNA (mtDNA). view more (2008-04-25)
Robust time estimation reconciles views of the antiquity of placental mammals
Despite great progress over the past decade, the evolutionary history of placental mammals remains controversial. While a consensus is emerging on the topology of the evolutionary tree, although with occasional disagreement, divergence times remain uncertain. view more (2007-04-18)
First research to show that diabetes damages DNA in men's sperm and may affect fertility
Scientists have found that sperm from diabetic men have greater levels of DNA damage than sperm from men who do not have the disease. They warn that such DNA damage might affect a man's fertility. view more (2007-05-03)
How appetite-stimulating brain cells work overtime during fasting
During periods of fasting, brain cells responsible for stimulating the appetite make sure that you stay hungry. Now, a new study of mice reported in the January issue of the journal Cell Metabolism, published by Cell Press, reveals the complex series of molecular events that keep those neurons active. view more (2007-01-03)
Investigational drug tested for preventing muscle fiber death in muscular dystrophy
An investigational antiviral drug currently undergoing human trials in Europe for treating Hepatitis C infections may have potential to reduce muscle cell damage in Duchenne and other forms of muscular dystrophy (MD). view more (2008-03-17)
Dog's place and date of birth identified
Earlier studies of this field have shown that Eastern Asia is the place where the wolf was tamed to become the dog. view more (2009-09-01)
Proteins are key to cell death in heart disease, stroke and degenerative conditions
Researchers at Yale School of Medicine have gained deeper understanding of two members of a family of proteins called caspases that play a key role in promoting apoptosis, a process in which the cell responds to external signals by essentially committing suicide. view more (2006-02-23)
Gene may 'bypass' disease-linked mitochondrial defects, fly study suggests
By lending them a gene normally reserved for other classes of animals, researchers have shown they can rescue flies from their Parkinson's-like symptoms, including movement defects and excess free radicals produced in power-generating cellular components called mitochondria. view more (2009-05-06)
Sirtris unveils promising, novel SIRT1 activators for treating diseases of aging
Sirtris Pharmaceuticals, Inc. (NASDAQ: SIRT), a biopharmaceutical company focused on discovering and developing small molecule drugs to treat diseases of aging, announced today that findings in the journal Nature demonstrate that Sirtris has developed novel drug candidates that offer a promising, new approach to treating diseases of aging,... view more... (2007-11-29)
'Escaped' proteins add to hearing loss in elderly, UF researchers find
Age-related hearing loss is the most common sensory disorder among the elderly. But scientists are still trying to figure out what cellular processes govern or contribute to the loss. view more (2009-11-11)
Too much of a good thing? Scientists explain cellular effects of vitamin A overdose and deficiency
If a little vitamin A is good, more must be better, right? Wrong! New research published online in the FASEB Journal shows that vitamin A plays a crucial role in energy production within cells, explaining why too much or too little has a complex negative effect on our bodies. view more (2009-10-09)
New study rebuts claims about Icelandic genetic heterogeneity
There has been some controversy in the media and within the scientific research community concerning whether Icelanders are genetically homogenous or heterogeneous relative to other European populations. Following an article published in Annals of Human Genetics in January 2003 by E. 'rnason, who concluded that Icelanders were one of the most... view more... (2003-08-19)
Trichoplax genome sequenced -- 'rosetta stone' for understanding evolution
Yale molecular and evolutionary biologists in collaboration with Department of Energy scientists produced the full genome sequence of Trichoplax, one of nature's most primitive multicellular organisms, providing a new insight into the evolution of all higher animals. view more (2008-09-04)
New protein vital for immune response is found
A newly discovered protein not only is vital to the immune system's ability to fight off viral infections but also has been found in an unexpected location within the cell, causing researchers to rethink previous notions about the workings of the human immune system. view more (2005-08-26)
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