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Tag: "six" at biology news

20-year study shows significant rise in childhood obesity, especially among girls

Four-year-old girls are six times more likely to have a Body Mass Index (BMI) of more than 30 than they were 20 years ago and ten-year-olds are five times more likely, according to research published in the April issue of Acta Paediactrica. Swedish researchers who studied BMI ...

UCSF brain tumor vaccine trial shows promising results

...igh-grade glioma. The trial involves two groups of six patients, both of whom receive a minimum of four injections. The first group receives biweekly vaccinations and the second receives weekly vaccinations. Patients are monitored for immune response before, during and after treatment. The UCSF inves...

What's in the water? Estrogenic activity documented in fish caught in Pittsburgh's rivers

...hat render the cells sensitive to estrogen. Of six bass extracts tested for estrogenic activity, four displayed a strong or moderate ability to bind with the estrogen receptors. Of 21 catfish extracts tested, nine displayed a similar ability to bind with the estrogen receptors. The researchers also e...

Finnish scientists discovered a new approach to treat virus-induced lymphomas

...as with reported median survival time shorter than six months after diagnosis. Researchers at the University of Helsinki have discovered that activation of the p53 pathway offers a novel effective treatment modality for KSHV-infected lymphomas. The findings by the research group of Dr. Päivi Ojala (Univ...

Post oak grasshoppers emerging

... eggs in the soil. A female typically lays five to six eggs at a time in a pod, and will produce two to four pods over her lifetime. In the spring, when post oak leaves begin to emerge, the eggs hatch and the nymphs begin to climb trees to feed. They go through at least five developmental stages before b...

Researchers first to map gene that regulates adult stem cell growth

...covery as an elation. He worked on the project for six years with Ying Liang, a former graduate student who is now a postdoctoral fellow at UK. Van Zant said this research and publication of the journal article is the culmination of a difficult but rewarding scientific journey. "We think these findin...

OHSU lab finds meth receptor that could lead to therapy

... entire TAAR1 signaling system that is composed of six receptor genes in humans. "When you put it all together, what you realize is that meth acts on several signaling systems and that a successful therapeutic treatment will likely require modulation of several targets simultaneously. We still have a lot...

Scientists find new genetic clue to cause of Alzheimer's disease

...ORL1 gene but not consistently in any of the other six genes. They then expanded their search to genetic data sets from families of Northern European, Caribbean Hispanic, Caucasian, African American, and Israeli Arab heritage for changes in the SORL1 gene. Again, they found the same association betwee...

Xylitol reduces risk of cavities

...caries-producing bacteria was down by a third, but six months afterward the values had returned to the original levels. Despite the relatively high dose of xylitol used, no negative effects were reported, such as stomach troubles. Products with xylitol as the sole sweetener are uncommon on the Swedis...

Inflammation may play role in metastasis of prostate cancer

...tep is to completely indict one of them." One in six men will be diagnosed with prostate cancer, and one in 33 will die of metastatic disease. Early tumors confined to the prostate can be treated, but no effective treatments are available for metastatic disease, according to Steven L. Gonias, M.D., Ph...

Sleep disturbances affect classroom performance

...dtime either. Avoid any rigorous exercise within six hours of your bedtime. Try to get rid of or deal with things that make you worry. Make your bedroom quiet, dark and a little bit cool. ...

Scientists discover a new risk factor for Alzheimer's

...nd colleagues connected the gene to the disease in six different groups of people, although they did not ...ssociated with an increased risk of Alzheimer's in six of them," St George-Hyslop said. "That implies that SORL1 is not the only cause of Alzheimer's, but ...

Napoleon's mysterious death unmasked, UT Southwestern researcher says

... plump emperor lost at least 20 pounds in the last six months of his life, a sign of gastric cancer. The autopsy descriptions show that Napoleon's stomach was filled with a dark material that resembled coffee grounds, an indication of gastrointestinal bleeding that likely was the immediate cause of death...

Gene study shows three distinct groups of chimpanzees

... team collected DNA from 78 common chimpanzees and six bonobos, a separate species of chimpanzee, and examined 310 DNA markers from each. They found four "discontinuous populations," three of common chimps plus the bonobos. Hybrids, those with at least five percent of their DNA from more than one com...

New bird, bat species revealed by extensive DNA barcode studies

...es our cells?genetic information ?ever since 1947, six years before its structure was described by Watson and Crick. His fundamental Natural Sciences and Engineering Research Council (NSERC) work on how radiation can kill cells, how the DNA molecule itself can control mutation, and other research has ear...

Cancer that colonizes our bodies

...es our cells?genetic information ?ever since 1947, six years before its structure was described by Watson and Crick. His fundamental Natural Sciences and Engineering Research Council (NSERC) work on how radiation can kill cells, how the DNA molecule itself can control mutation, and other research has ear...

Largest genomic search finds genes that may contribute to autism

... Scientists believe that there may be five or six major genes and perhaps as many as 30 other genes involved in autism. Inheriting more of these genes or certain ones is thought to increase a child's likelihood of being born with autism or a more severe form of the disorder, just as there are genes...

New research may overturn conventional wisdom on drug-resistant tuberculosis

... by re-infection or mutation, the authors excluded six patients who were initially infected with resistant TB and then became drug-susceptible or resistant to fewer drugs. In the remaining 32 patients, the initial sample was drug-susceptible or resistant to at least one drug and the subsequent sample res...

The connector rotation hypothesis? Phage do not pack their DNA by rotation

...oked at connector movement during DNA packaging in six ö29 mutants. After attaching the fluorescent molecules to the connector complex, they set the mutants to work packaging DNA in a flow chamber. As the connectors functioned, the researchers shone homogeneously polarized light on them and recorded the ...

'Ancestral eve' was mother of all tooth decay

... who gathered over 600 samples of the bacterium on six continents over the past two decades. His final analysis focused on over 60 strains of S. mutans collected from Chinese and Japanese; Africans; African-Americans and Hispanics in the United States; Caucasians in the United States, Sweden, and Austra...

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