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Tag: "were" at biology news

Dealing deadly cancers a knockout punch

... exciting findings of Reolysin combination therapy were reported at the American Association for Cancer Research Annual Meeting in April, 2007. In mice transplanted with a human colon cancer, Reolysin plus gemcitabine completely eradicated the tumors in four of five test animals. It is rare to see the vi...

Study offers clues to 'Broken Heart Syndrome'

...r a period of nearly 2½ years. Ninety-five percent were women, and 60 percent experienced some type of str...95 percent of patients. Twenty percent of patients were unable to breathe on their own and needed a respirator. In all patients, cardiac catheterization sho...

Scientists develope a new model of artificial canine skin

... dermis (fibroblasts) from samples of healthy dogs were used. The dermis cells, inserted into a collagen marix (a very common protein in skin and joints), were used as a support for the epidermis cells, which were grown on its surface and were kept in growth c...

HIV survival improves if patients stay in care

... 2,619 men with HIV for more than four years. Most were diagnosed between 1997-1998 at a VA hospital or clinic and began treatment after Jan. 1, 1997. Researchers divided the men into four groups based on the number of quarters in the first year after starting treatment that they visited their HIV phy...

High-dose anticlotting drug cuts heart attack, death risk in half

... than 1,500 patients. Roughly half of the patients were pretreated with 300 mg of clopidogrel and the other half with 600 mg. A few received either 450 mg or 900 mg of clopidogrel. Overall, pretreatment with high-dose clopidogrel (600 mg or more) was associated with a 50 percent reduction in the risk ...

Magnetic computer sensors may help study biomolecules

...at if biomolecules such as proteins or DNA strands were attached to the magnetic particles, the spin-valve array could apply torsional forces strong enough to alter the structure or shape of the biomolecules. The NIST group is now working on a microfluidic chip that will accomplish this electronically, wh...

New host species for avian influenza identified

...pe. Seven previously unknown host species for H5N1 were identified, including four species of goose and the common gull, and dabbling ducks were found to harbor all but two known influenza virus subtypes. The ecological and epidemiological da...

DOE JGI sets 'gold standard' for metagenomic data analysis

...r, so far all the methods that have been developed were aimed toward analyzing data coming from single, is...ed the gold standard's 'the truth' and found there were tools that shouldn't have been used because their predictive accuracy was very low. But it also vali...

DNA-damage test could aid drug development

...ow, proved more sensitive to the toxic agents than were the cultured cells from normal mice, further confirming the results. With the new assay, "instead of testing one chemical and one dose in one animal, you'll be able to take one animal, get the bone marrow out and test a thousand different conditio...

100 percent of pregnant women have at least one kind of pesticide in their placenta

...zed. A total of 668 samples from pregnant women were used in this study, which was approved by the Ethi...ission of San Cecilio University Hospital. Mothers were informed of the study’s goals before giving their express consent. Thanks to gynaecologists, the ...

Sleepless for science: Flies show link between sleep, immune system in Stanford study

... as the normal flies. They looked at flies that were defective in one of two genes, called "timeless" and "period". They found that the loss of either gene's function made the flies more sensitive to bacterial infections and these sick flies died significantly faster than control flies, which lived two...

Palau's coral reefs show differential habitat recovery following the 1998 bleaching event

...fs. The researchers also found that recovery rates were significantly higher between 2002 and 2004 than between 2001-2002. Because Micronesia is at a great distance from large human population centers, van Woesik hypothesizes that the coral recovery rate is directly linked to human enviro...

Female-led infanticide in wild chimpanzees

...e suggested that in two of the cases, the killings were perpetrated by groups of resident females against ..." females from outside the resident group. Infants were taken from the mothers, who were injured in at least two of the attacks; in at least one case, adult...

Thymus transplants gives hope to babies with fatal immune disease

...ent of the babies who received a thymus transplant were alive after one year. The recipient of the first t...rred within one year of the transplant. The deaths were caused by various infections and were not a result of the surgery itself, she said. "These babies...

Heavy multivitamin use may be linked to advanced prostate cancer

...er risk. After five years of follow-up, 10,241 men were diagnosed with prostate cancer, including 8,765 wi...itamins and men using high levels of multivitamins were also more likely to take a variety of individual supplements, we were unable to identify or quantify...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...muscle fibers. By the way, the Scripps scientists were originally interested in underwater noise effects and only later adapted their work to noise in muscle. (2pUW9; contact Karim Sabra, ksabra@mpl.ucsd.edu ) MEASURING VOCAL STRESSES IN TEACHERS In classrooms, teachers need to speak frequently,...

Researchers develop way to calculate speed of bacterial sex

... in nature, current computer models of conjugation were pretty basic," said Ginn. UC-Davis researchers set out to build a better model that incorporated the experiences of bacteria in nature, such as wait times associated with conjugations, bacterial cell motion and transport in ground water, and the colo...

Spud origin controversy solved

...appearing in Europe and later spreading worldwide, were first recorded outside of the Americas in 1567 on ...hilean introductions before the 1840s because they were better able to reproduce in long-day conditions, in contrast to Andean potatoes that were short-day ...

Chemical maps hint at drug's effects on schizophrenia

... that chemical signatures measured by metabolomics were different for schizophrenia patients than for peop...eight gain and diabetes. Schizophrenic patients were found to have lower levels of the lipids used to make membranes involved in storing and communicatin...

Spreading viruses as we breathe

...ak of SARS in Hong Kong where more than 300 people were infected within the space of a few hours. "We w...plets in health care facilities to see how viruses were spread around the world. ...

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