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Tag: "third" at biology news

Identified main genetic variants involved in response to HIV

... infected by HIV. This study has also identified a third genetic variation involved in immune damage of pat...f viral load variation among patients, whereas the third genetic variation would explain 5.8% of these differences. Further study of other genetic regions in...

Caribbean frogs started with a single, ancient voyage on a raft from South America

...ansas, were involved in much of the field work. A third co-author of the study is Penn State graduate student Matthew Heinicke, who performed DNA sequencing and analysis. One prominent theory had proposed that frog species on the large islands of Cuba, Jamaican, Hispaniola, and Puerto Rico had walked t...

Exploring the dark matter of the genome

...Berkeley Drosophila Genome Project (BDGP). "Over a third of the total DNA in a fruit fly is heterochromatin...ics, was actually far from complete. It left out a third or more of the genome by covering only the fly's euchromatin and almost none of its heterochromatin....

Understanding why C. difficile causes disease -- it's hungry

...ns the bacterium produces that cause disease and a third gene codes for a protein that makes a hole in the organism’s cell envelope to let the toxins out. The last two genes are of greatest interest to Sonenshein and his colleague, Bruno Dupuy from the Institut Pasteur. One codes for a protein, known as R...

Peanut allergies overstated, study finds

...ze of the hive in millimetres. In this study, a third of the children with a hive of eight millimetres - which has been found elsewhere to be predictive of having peanut allergy - were found not to be allergic to peanuts when they took a peanut challenge. A challenge involves eating peanuts in a hospita...

Investigating the measles virus as a tool to kill multiple myeloma

...one marrow that currently has no cure. This is the third of a series of molecular medicine studies in patients testing the potential of measles to kill cancer. “This is the beginning of a long but exciting process,?says Angela Dispenzieri, M.D., hematologist and lead researcher on the multiple myeloma cl...

Red flag for repetitive stress injuries identified for first time in humans

... which cause pain, loss of function and close to a third of missed workdays in the United States, at a cost of $20 billion a year in workers' compensation. In previous studies, the researchers pinpointed these early warning signals in a rat model of RMI. The current study is the first to identify the w...

Researchers from the University of Navarra analyze new kinds of cancer-fighting antibodies

...cancer survivors through two clinical tests in the third phase. In two years we will test its use as the sole means of treatment, and we will need more time in order to know if its effects in treatment combinations are as positive as the results on test animals predict. Aside from this, there are anothe...

Woven scaffolds could improve cartilage repair

... However, the machine that Moutos developed adds a third set of fibers, which creates a three-dimensional product. Also, since the scaffold is a woven material, there are tiny spaces where cartilage cells can nestle and grow. ...

Robotic therapy helps restore hand use after stroke

...0 Americans suffer strokes annually. Stroke is the third leading cause of death in the country. And stroke causes more serious long-term disabilities than any other disease. Nearly three-quarters of all strokes occur in people over the age of 65 and the risk of having a stroke more than doubles each decade...

Bacteria control how infectious they become, study finds

...rd looked dramatically different. It's this latter third that appears to be the portion of the protein responsible for controlling the genes that make E. coli infectious. “In contrast to NusG, which is always active, RfaH is usually inactive, because the part of the protein that is needed to activate ge...

Antifungal drug kills TB bug

...nt strains. "TB is back with a vengeance with a third of the world’s population currently infected," said Professor Andrew Munro, who led the research in Manchester’s Faculty of Life Sciences. "The bacterium survives the initial attack by the body’s immune system and then lies dormant, usually in the...

Why aren't humans furry? Stone-Age moms could be the answer

... No Two Alike, the article, "Parental selection: a third selection process in the evolution of human hairlessness and skin color" was judged to best embody the spirit of the journal. The £1,000 prize, launched in 2004, is awarded annually and named in honour of Dr. David Horrobin, the renowned researcher, ...

Manipulating nature: Scientists query wildlife birth-control method

... immune responses should not be permitted. "The third concern is that animals are suffering side-effects from multiple injections and adjuvant substances (catalysts that modify the action of other agents) designed to boost the effectiveness of immuno-contraceptives. "The most commonly used adjuvant,...

Indicators for risk of heart disease are higher in passive smokers

...scular disease. Researchers examined data from the third National Health and Nutrition Examination Survey (NHANES III, 1988?4), which included 7,599 adults who had never smoked. Sixty-eight percent of the participants were women, with participants' median age being 38. Eighteen percent of participants ...

Iowa State University botanists identify new species of North American bamboo

...ican bamboo in the hills of Appalachia. It is the third known native species of the hardy grass. The other...species," Clark said. "But we kept hearing about a third plant, called hill cane." And as soon as they saw it, they knew it was different....

New cell type identified in cancer development

...tored by an infusion of bone marrow cells; and the third group was made up of normal, healthy mice. The results showed that the strength of the immune system affected whether or not the mice got cancer. The scientists found that the pCSCs, like normal stem cells, had the ability to create various types ...

Scripps research study reveals structural dynamics of single prion molecules

...anosecond timescale (billionths of seconds). A third technology, single molecule fluorescence coincidence, was used in an unusual way-to prove that the protein species under scrutiny were not oligomeric (consisting of multiple proteins in an aggregate). The technology, based on measuring fluorescence b...

Using brain scans, researchers find evidence for a two-stage model of human perceptual learning

...ely tuned to small car shape differences. In a third scan, the investigators finally asked subjects to categorize the same car images shown in the other scans. This time, two areas of the brain, the now familiar area in lateral occipital cortex as well as an area in lateral prefrontal cortex, were foun...

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

...ne per cent for both sexes in 1982. Nearly a third of ten year-old girls (30 per cent) and a fifth of ten year-old boys (21 per cent) had a BMI of more than 25 in 2002, compared with 14 per cent of girls and eight per cent of boys in 1982. Five per cent of the ten-year-old girls in the 2002 sur...

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