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Tag: "matched" at biology news

Genetic study of Neanderthal DNA reveals early split between humans and Neanderthals

... multiple locations where the Neanderthal sequence matched more closely to that of chimpanzee and not human. Using the comparison of the Neanderthal to the human and chimp genomes enabled the investigators to estimate the human-Neanderthal divergence timeline. The scientists also used data from the HapMap ...

Few clues about African ancestry to be found in mitochondrial DNA

...erican mitochondrial DNA sequences analysed can be matched to mitochondrial DNA from one single African ethnic group. There has been a growing interest in the use of mitochondrial DNA to trace maternal ancestries, and several companies now offer to analyse individuals' mitochondrial DNA sequences to obtain i...

Researchers create genetically matched embryonic stem cells for transplantation

...stomized embryonic stem cells that are genetically matched to the egg donor at the genes that control recognition of cells by the immune system, making them potentially useful for transplantation therapies. There are several caveats, including the fact that only females could benefit from this technique, don...

Flu shot effective against drifted influenza, nasal spray vaccine less so

...ffective against circulating strains that are well matched to vaccine strains. During the 2004-2005 flu season, a University of Michigan team found that the killed-virus flu shot was 75 percent effective against a moderately-drifted type A virus and two types of B virus. The standard formulation of both the ...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...ded. Ten healthy volunteers (six men, four women), matched for age and gender, were recruited as controls for the study. The data were analysed and evaluated using FSL, a sophisticated software package developed at the Oxford FMRIB Centre, and LCModel (a computer program that analyses spectroscopy data) to g...

Walking not enough for significant exercise benefits

... daily exercise at a self-selected pace. "When we matched the two programs for energy expenditure, we found that the traditional fitness program improved aerobic fitness and reduced systolic blood pressure, more than the 10,000-step lifestyle program," Dr. Harber said. Of the 128 sedentary men and women who...

Radiologists attempt to solve mystery of Tut's demise

...olidified embalming material. These bone fragments matched exactly a defect within the first vertebra in the neck. They found no evidence of skull fractures. A mishap during the mummification process, or even damage incurred during that first x-ray examination may explain the misplaced—and misleading—bone...

Found -- the apple gene for red

...ustry program'. The Australian Government provides matched funding for all HAL's research and development activities. ...

Inheriting a tendency to brain infection

...Casanova, "the immunological abnormality perfectly matched that found in our patient." Beutler's mouse carried a mutation in a gene called unc93b. The French team sequenced the human counterpart, unc93b1, and found that their patient carried two mutated copies of this gene. In early 2006, they found a sec...

Gut reaction: Researchers define the colon's genome

..., the researchers used two strategies. First, they matched their gut microbial DNA sequences up to two databases, one containing 16s rDNA gene sequences and the other containing non-redundant protein sequences. Second, they compared the colon-culled sequences to two previously sequenced human gut organisms: ...

Surprising symbiosis: Glassy-winged sharpshooter eats with friends

...NA sequences, removing all the sequence reads that matched neither the insect nor its known symbiotic B. cicadellinicola bacteria. A large amount of the leftover DNA mapped to another bacterium, S. muelleri. Sure enough, when they pooled the bits of sample DNA that came from S. muelleri, the team found all t...

Potato blight pathogenicity explained by genome plasticity

...introduced into cultivated potato by breeding, are matched by avirulence ( Avr ) genes in Phytophthora . While many such gene matches are predicted, only a few have been confirmed by molecular and functional studies. Avr genes are thought to undergo rapid changes to evade detection by plants that possess ...

New research examines genetics of successful aging

...ith that of 100 young adults, aged 18-25, who were matched for sex, race, ethnicity and geographic location. Particularly, Dr. Zubenko and his research team attempted to identify specific genetic sequences present in older individuals that may be linked to reaching older ages with preserved cognitive abiliti...

New study reveals components of cocoa may enhance the appearance of the skin

...9 mg) once a day, while the other group consumed a matched cocoa beverage low in flavanols (27 mg). At three different periods during the 12-week study, various tests were conducted to evaluate skin properties: sensitivity to UV irradiation, skin blood flow, skin structure and texture, and skin hydration. T...

Microbes hitchhike across Atlantic on desert dust

...diction System Global Aerosol Model. DNA analysis matched two of the isolates 100 percent to two dust-borne isolates previously collected from the atmosphere in Mali. One of them, a known human pathogen, has also been found in atmospheric samples in the U.S. Virgin Islands when African desert dust was pres...

Avian flu modeled on supercomputer, explores vaccine and isolation options for thwarting a pandemic

...modestly effective vaccine to use while the better matched one is being developed, the authors suggest. HOW IT ALL COMPUTES The computer simulation models a synthetic population that matches U.S. census demographics and worker mobility data by randomly assigning the simulated individuals to households,...

COX-2 inhibitors significantly reduce risk of cancer

...hose from a control group of 649 cancer-free women matched for age, race and county of residence. They discovered that women who used NSAIDs on a regular basis had less breast cancer. Specifically, they found that those who used celecoxib or rofecoxib for at least two years appeared to benefit the most, exp...

Inflammation and drugs to control this activity studied in a variety of tumors sites

...drug use in 830 brain tumor cases and 831 controls matched for age, gender and race. The tumors were analyzed by histologic type. The majority ?339 ?were high-grade glioblastomas; 117 were mid-grade, or anaplastic astrocytoma; and 154 cases were low-grade. The scientists found that regular, long-term antih...

New method for identifying microbes

...ctive technique." For tag sequences that can't be matched to an already sequenced bacterial genome (of which there are only a couple hundred), the scientists can use the tag as a primer to sequence the entire attached ribosomal gene. This gene is about 1400 genetic-code-letters long, so this is a more time-...

Big hips, big belly? It's in your genes, Joslin-led study shows

...hree people with blood samples but without MS were matched to each MS patient by age, sex and date of blood collection. The blood samples of all participants were then analyzed to determine the levels of antibodies against the Epstein-Barr virus. Measuring antibodies, proteins produced by the body to fight ...

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