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Tag: "reverse" at biology news

Amphetamines reverse Parkinson's disease symptoms in mice

...including the drug popularly known as Ecstasy, can reverse the symptoms of Parkinson's disease in mice with a...neurotransmission," she added. Amphetamines might reverse the animal's symptoms through their effects on a different group of receptors called trace amine rec...

Bone marrow stem cells may heal hearts even years after heart attacks

...generation using stem cells could help to not only reverse some heart attack damage, reduce symptoms and improve the daily functioning of patients; it might also reduce the risk of heart failure, Dr. Strauer said. Current heart attack interventions attempt to restore blood flow to the heart muscle as soon a...

UW scientists report a new method to speed bird flu vaccine production

...ted by the Wisconsin team improves upon a previous reverse genetics method (developed by Kawaoka's group in 1999) by significantly reducing the number of plasmid vectors required to ferry viral genes into the monkey kidney cells used to produce the virus particles to make vaccines."Compared to other types of...

Single gene is genetic switch for fly sexual behavior

... pheromones. In these cases, "we have been able to reverse the sex roles during Drosophila courtship," Dickson and Demir say. Dickson and Demir created male-spliced versions of fruitless in female flies and female-spliced versions in male flies. Males with the female version of fruitless "barely court at al...

No small feat: First ever gene therapy success for muscular dystrophy achieved

...nly have real therapeutic benefit if it is able to reverse genetic defects in every cell of the body's 600 muscle groups. By using a miniature gene, similar in function to the one defective in CMD, and applying a newly developed method for "systemic" gene delivery, the Pitt researchers have shown that gene ...

Newly Discovered Role for Heart Response Enzyme May Yield Better Heart Failure Therapy

...s, they said, suggest new approaches to prevent or reverse heart failure, which affects two to three million people in the U.S. The team reports its findings in the August 2005 issue of Nature Cell Biology. The study is now available as an advance online publication. "We've uncovered new details of the firs...

Targeting a key enzyme with gene therapy reversed course of Alzheimer's disease in mouse models

...velop Alzheimer's disease, scientists were able to reverse the rodents' memory loss by reducing the amount of an enzyme that is crucial for the development of Alzheimer's disease. "What we are showing is a proof of principle that stopping the synthesis of a protein that is necessary for the formation of the...

Helping in a selfish world

...ty researchers show that in certain situations the reverse is true: unrelated individuals help more. Sigal Balshine, associate professor of in the Department of Psychology, Neuroscience & Behaviour at McMaster and her graduate student Kelly Stiver have been studying a small species of African cichlid fi...

Researchers use RNAi libraries to identify regulators of apoptosis and chemoresistance

... cell growth in check, as well as human telomerase reverse transcriptase (hTERT), the enzyme that protects the ends of chromosomes during cell division. This enzyme is associated with the progression of many cancers. None of these mutant genes, when introduced individually or in combination, led to cancerous...

U of MN researchers reverse memory loss in mice

...rchers at the University of Minnesota were able to reverse memory loss in mice with significant brain degener...arch suggests that in the future we may be able to reverse the effects of memory loss, even in patients who have lost brain or neural tissue," said Karen Ashe,...

Ibruprofen and other commonly used painkillers for treating inflammation may increase the risk of heart attack

... cell growth in check, as well as human telomerase reverse transcriptase (hTERT), the enzyme that protects the ends of chromosomes during cell division. This enzyme is associated with the progression of many cancers. None of these mutant genes, when introduced individually or in combination, led to cancerous...

Engineered skin offers clues to melanoma development

... cell growth in check, as well as human telomerase reverse transcriptase (hTERT), the enzyme that protects the ends of chromosomes during cell division. This enzyme is associated with the progression of many cancers. None of these mutant genes, when introduced individually or in combination, led to cancerous...

Fundamental discovery -- Bone fracture

...om these deleterious changes, and perhaps actually reverse some of the changes." Hansma explained, "The thing that's exciting about this research is that we've identified a mechanically important component of bone." When the exact molecules are identified, these can then become therapeutic targets, for exam...

Investigating 'brain shrinkage' in alcoholics

...ultimate goal of identifying how to prevent and/or reverse these effects." Key presentation highlights were: - A number of toxic, metabolic, and nutritional factors interact in a complex way to cause brain damage in those individuals who abuse or are dependent on alcohol. "The exact ways in which alcohol ...

Microreactor efficiently regenerates cofactors for biocatalysis

...neration. "In large batch reactors, a spontaneous reverse reaction prevents the regeneration of essential co...lk phase in our microreactor prevents the unwanted reverse reaction from occurring, while permitting continuous operation." Using their microreactor, the rese...

Millennium Ecosystem Assessment: Many of 2 billion dryland dwellers at risk as land degrades

...olicies and sustainable agricultural practices can reverse the decline of drylands. Chief among these are measures that protect soils from erosion, salinization and other forms of degradation. Proper land use management policies are needed to protecting existing vegetative cover from overgrazing, over-exploi...

Plankton can run, but can't hide from basking sharks

...rnal of Animal Ecology, basking sharks are able to reverse their normal pattern of diving at dawn and surfacing at dusk in order to foil the attempts of zooplankton trying to evade capture. As well as shedding new light on basking behaviour, the results have important implications for the conservation of sha...

Malaria killing a million a year

... eliminate many socio-economic ills, would halt or reverse the spread by 2015, while WHO's Roll Back Malaria partnership, founded in 1998, aims to halve the burden by 2010, despite a serious lack of funds. Only $600 million was contributed to global malaria control this year, when $3.2 billion was needed to...

Genetic links could unlock clues to leading cause of blindness

...se can be controlled, but there is no known way to reverse the vision loss it causes. Knowing more about the earliest predictors of macular degeneration could help doctors treat the disease before extensive vision loss occurs and may even prevent it in some people. The early risks associated with macular de...

Combination therapy leads to partial recovery from spinal cord injury in rats

...promoting new myelin growth in the spinal cord can reverse this damage, says Scott R. Whittemore, Ph.D., of the University of Louisville in Kentucky, who led the new study. "Many other investigators have suggested that remyelination is a possible approach to repair the spinal cord, but this is the first stud...

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