Tag: "differences" at biology news
Don't stand so close to me: A new view on how species coexist
...y found that over long periods of time, 'gaps', or differences
in their life histories, opened up between the evolving parasitoid wasp species, which are not filled by others. They suggest this may explain the great diversity of wasps seen in nature. "There is a fixed amount of difference necessary," says Dr Bon...
Of lice and men
...e mutation rate in lice and comparisons of genetic differences
among lice to find a similar population bottleneck in the group of head lice that infested early Homo sapiens, but no such bottleneck in the population of the lice on the archaic human species. That means archaic humans didn't go through the same pop...
NIH funds first nationaL SNP genotyping center at Broad Institute
...dition." Many diseases can be traced to inherited differences
in each individual's genes. The most common type of variation in the human genome is the single nucleotide polymorphism, or SNP (pronounced "snip"). A SNP is a single DNA base pair, or unit of DNA, the sequence of which can vary from individual to ...
September/October 2004 Annals of Family Medicine tip sheet
...events (114 vs. 149). They also found significant differences
in the number of arrests for controlled substance or liquor violations (0 vs. 8). The authors suggest that these compelling findings point to the efficacy of brief counseling one of the most important therapeutic modalities used by physicians. With ...
Bovine genome assembled
...ng Project will allow detailed tracking of the DNA differences
between these breeds to assist discovery of traits for better meat and milk production and to model human disease....
Bovine genome sequence available
...n in 2005, will allow detailed tracking of the DNA differences
between these breeds to assist discovery of traits for better meat and milk production and to model human disease. The initial assembly is based on 3.3-fold coverage of the bovine genome and by 2005, a 6-fold sequence coverage will be achieved....
Experts present new research on hot topics in aging at GSA's annual meeting in Washington, DC
...m contrasts race, gender, and socioeconomic status differences
at baseline and over time. November 22 at 8:30 a.m . The Genetics of Exceptional Survival : The NIA funded Pacific Genetic Epidemiologic Study on Aging (PacGen) was designed to explore and develop studies of the genetics for longevity i...
US Agency for International Development awards $34 million to Virginia Tech
...nia Tech helped crop and livestock farmers resolve differences
over the land use and access to water. Providing information about weather, soil, cropping systems, livestock management, water availability, and the tools for agricultural and natural resource management resulted in better communication, decision-ma...
Estrogen protects male rats from aortic aneurysms
...School, who studies factors responsible for gender differences
in abdominal aortic aneurysms. "Earlier studies ha...ibed a series of U-M experiments focused on gender differences
in AAA formation and estrogen's protective effect. This study was one of the first to include both f...
Study in Royal Society journals presents evidence for inherited factors in homosexuality
...d identified 27 that were strongly associated with differences
in male reproductive success. One of these genes is known to cause pesticide resistance, and our results suggest that there is a cost to resistance in terms of decreased male success. Genes involved in oxidative stress resistance, energy acquisition ...
Channel protein converts vibrations to electrical signal
...ing in the ear that allows us to discriminate fine differences
in pitch. If this model is true, TRPA1 may also be the amplifier protein....
A new culprit in depression?
...orehead. Previously, brain scan studies have found differences
in brain activity levels and size in these areas i...inds of related mRNA that had the most coordinated differences
between the samples from depressed brains, the non-depressed brains and the bipolar brains. These t...
NHGRI seeks next generation of sequencing technologies
...ish between the four types of nucleotides based on differences
in a phenomenon called electron tunneling. Scott ...ill be used in experiments that attempt to measure differences
in the electron tunneling of individual nucleotides in DNA molecules. Such devices could lay the gro...
Using fruitflies to examine alcohol tolerance
...ost strikingly, our results suggest that there are differences
in the mechanisms underlying tolerance produced by different protocols of previous alcohol exposure. First, pre-treatment with a drug inhibiting protein synthesis blocked the development of chronic but not of rapid tolerance. Second, a fly mutant...
Peakadilly nv biopharmaceutical firm created
...his. The technology enables one to uncover all the differences
between the proteome of a sick person and that of a healthy person, and between the proteome of a patient who reacts positively to a drug and of a patient who is not helped by it. Proteomics can also provide insight into the origin an...
Expert panel offers prelimary report on health effects of assisted reproductive technologies
... has increased substantially over the last decade, differences
in study design and study conclusions have sometimes led to conflicting conclusions and to confusion among patients, providers and the public. To clarify what is known and what gaps remain, Kathy Hudson, Ph.D., director of the Genetics and Public Pol...
Mice thrive despite massive genetic makeover
...tures. Despite the researchers' efforts to detect differences
in the mice with the abridged genome, none were found. "By and large, these deletions were tolerated and didn't result in any noticeable changes," said Nbrega. "An important caveat, however, is that no matter how detailed our analyses, our abil...
New genomic method can identify disease-causing genes
...attern of observable physiological or pathological differences
among selected strains of mice with a pattern of g...earchers understand the relationship between trait differences
and variations in the mouse genome, which will move us a long way toward understanding the impact of...
Genetics play role in response to most common asthma drug
...s from earlier studies that suggested that genetic differences
in the beta-receptor might play an important role in how patients respond to albuterol. The BARGE study examined the effects of two forms of the beta-2 adrenergic receptor in patients with mild asthma. The trial paired 78 participants with matching ...
New method studies living bacterial cells
...lls of Pseudomonas fluorescens. The results showed differences
between the planktonic and adhered cells in morpho...ic cells. In addition to determining the chemical differences
between the cells, the work also pioneers a potentially revolutionary new technique for investigatin...
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