Tag: "compared" at biology news

Heart gene yields insights into evolution, disease risk

... traits." Rockman, Wray and their colleagues first compared the structure of the gene region among non-human p...or tens of millions of years. The researchers next compared the variation in the regulatory region of the MMP3 gene among seven populations from around the worl...

Genetic map of important tree genes outlined

...respond to environmental stresses. The study also compared many of these gene sequences to those found in Arabidopsis, and found that nearly all the genes were functionally common between the two, even though they have been separated by about 100 million years of evolution and look completely different. Arab...

The birth of a beak

...some light on that question, Chuong and colleagues compared beak development in chickens and ducks: Duck beaks are long and wide, Chuong notes, while chicken beaks are small and have a conical shape. In their studies, the researchers focused on one particular facial prominence called the frontonasal mass, or ...

Rare deficit maps thinking circuitry

...s, and their brain structure and activity could be compared with matched healthy controls of similar IQ. The researchers suspected that the visuospatial construction deficit would be found in a visual processing circuit that courses forward and upward from the back of the brain. This "where" circuit processe...

Chernobyl study: Risk of thyroid cancer rises with radiation dose

...g those who received the highest radiation dose as compared to those in the lowest-dose group, according to a team of American and Russian researchers led by Scott Davis, Ph.D., and colleagues at Fred Hutchinson Cancer Research Center. They report their findings in the September issue of Radiation Research. "...

DHA-rich diet protects brain from Alzheimer's damage, UCLA study shows

...from algae. After five months, the researchers compared each set of mice to a control group that consumed the same diet but did not carry the Alzheimer's genes. The results surprised them. "We found high amounts of synaptic damage in the brains of the Alzheimer's-diseased mice that ate the DHA-deple...

JCI table of contents: 1 September, 2004

...tion when their skin was exposed to an allergen as compared to wild-type mice. Further, wild-type mice that ha...e expression, was also higher in neonatal lungs as compared to adult lungs from mice. Data also indicated that the mechanism by which NF-kB provided protection ...

Anti-cancer compound in vegetables found to block late-stage breast-cancer cell growth

...her similar phytochemicals are toward cancer cells compared to normal cells," he said. "We also do not know against which cancers SUL's microtubule-targeting actions are most effective." Future studies in Singletary's lab will address those issues....

Modest climate change could lead to substantially more and larger fires

...rease in summer temperatures between 2070 and 2100 compared to temperatures from 1970 to 2000 -the area burned will increase by 1.4 to five times in western states except California and Nevada, where the increase isn't so great. Fire in California and Nevada appears to be relatively insensitive to changes in...

Protemix corporation announces discovery of way to repair hearts damaged by diabetes

...arin TM caused increased urinary output of copper compared with treated controls. The researchers found reversed heart failure in preclinical models. They also found that the damaged hearts in the preclinical models and humans had substantively regenerated after treatment with Laszarin TM . Professor Coope...

Researchers improve detection of diverse anthrax strains

... of five isolates, or strains, of anthrax and then compared the results of each sequence to detect minute variations (SNPs). TGen and NAU researchers used that data to develop a typing, or identification, system for various anthrax strains. "This is the first time that a new bacterial typing system has been...

Diabetics face fewer healthy food choices in some urban areas

...e at Mount Sinai School of Medicine and colleagues compared 173 East Harlem and 151 Upper East Side grocery st... recommended list of five diabetes-friendly foods, compared with 58 percent of the Upper East Side stores. East Harlem is a racially and ethically mixed neighb...

Environmental costs of home construction lower with wise choice, reuse of building materials

...from these residuals, a renewable source of energy compared to fossil fuels. Two designs of typical houses were analyzed in the study by the Consortium for Research on Renewable Industrial Materials, a research group started by 15 universities and research institutes, see http://www.corrim.org/ . The $1 mil...

Marathoning mice could have Olympian effects on obesity

...eceptor PPAR-delta, we created a mouse that could, compared to normal mice, run marathons, said Evans. The activated form of PPAR-delta produced muscle fibers that enhanced endurance exercise." By turning on PPAR-delta, the team had produced highly efficient muscle fibers that burned fat more rapidly. As a re...

Regular physical activity really does boost immune system in older men

...igher anti-KLH IgM, IgG, IgG1 and DTH but not IgG2 compared with the sedentary older group. Experiment one fou... subject had an improved antibody and DTH response compared with older sedentary subjects that is equal to that of younger subjects. The changes in anti-KLH IgG...

UCSD biologists develop 'super-endurance' strain of mice

...better these super mice were, endurance-wise, when compared to normal mice. Using four-month-old mice that lacked the HIF-1 gene in their skeletal muscle, the scientists subjected groups of super mice and normal mice, with the HIF-1 gene, to a swimming endurance test and two treadmill running tests. In the sw...

Decreasing toxins in brains of Alzheimer's patients keep cognitive deficits at bay

... the isoprostanes were reduced by about 50 percent compared to Alzheimer's patients taking standard anti-Alzheimer oral medications alone. "We were very happy to see this amount of reduction," says Pratico, who adds that the research team predicted reductions only half that size. Additionally, the normal comp...

Anticancer drug zebularine specifically targets tumor cells

...ation is preferentially taken up by tumor cells as compared to normal cells, according to a group of researche...nel of seven different human tumor cell lines, and compared them to its effects on four different cell lines of normal human fibroblasts, which are cells that p...

Why your knees and quads hurt more after running than walking: You're only human

...extensor groups combined, vs. 23% at a walk). This compared with a 1.77-fold increase for the hip extensors (to 36% of the aggregate total while running, from 46% walking) and a 1.10-fold increase for ankle extensors (way down to 16% of the total while running from 36% at a walk). They warn, however, that "...

PCB breakdown in rivers depends on sediment-specific bacteria, find Carnegie Mellon U. scientists

...ediment were faster at digesting an introduced PCB compared with sluggish bacterial cousins at work in contaminated Grasse River sediment. "Our goal is to determine the roles that different bacterial populations play in PCB breakdown by identifying the kinds of microbes in river sediments as well as their p...

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