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Tag: "two" at biology news

Same mutation aided evolution in many fish species, Stanford study finds

...rom a stream near Fresno. Perhaps mutations in the two other genes cause problems for the fish in additio... those fish bred, some gave rise to offspring with two copies of the mutation and no (or reduced) body armor. In a freshwater habitat those fish prospered ...

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

...nsity of breeding seabirds on fox-free islands was two orders of magnitude higher than on fox-infested islands. The resulting difference in nutrient inputs was reflected in soil phosphorus levels that were more than three times higher on fox-free islands. The vegetation on the islands also showed signifi...

Gene Therapy For Parkinson's Disease Moves Forward In Animals

...tional team of scientists has used gene therapy in two separate studies to renew brain cells and restore normal movements in monkeys and rats with a drug-induced form of Parkinson's disease. The research, detailed online in the scientific publications Brain and The Journal of Neuroscience, essentially d...

Scientists reveal molecular secrets of the malaria parasite

...esequencing and genome annotation was performed on two species of rodentmalaria (Plasmodium chabaudi and ... where scientists did a comparativeanalysis of the two draft genomes with those of the first rodentmalaria parasite to be sequenced, Plasmodium yoelii.The ...

Studies reveal methods viruses use to sidestep immune system

...iology at UT Southwestern and senior author of the two studies, said the tactics employed by HCV to infec...toral researcher Dr. Yueh-Ming Loo were authors on two of the papers. Postdoctoral researcher Dr. Chunfu Wang, MSTP student Cynthia Johnson and research as...

Development of portable infectious disease detector

... To do so, the interdisciplinary teamhas developed two basic technologies: special electrodes that canmea...is to produce its firstportable HIV monitor within two years. In addition to such "point ofcare" devices, Wikswo and Pyle are joining forces to develop"hig...

Scientists discover unique microbe in California's largest lake

...ely related species ofAcaryochloris, but the other two live in the Pacific and must grow onor in an anima...and independent lifestyle. Shenotes that the other two species of Acaryochloris live in relativelypure ocean water, but cannot survive there unless they ar...

Potential Cure for Lymphoma in HIV patients

... median length of study follow-up wasapproximately two and a half years, with a range of about six months....Before the transplant, patients were given one of two conditioningregimens, either high dose chemotherapy alone or in combination withradiation therapy, t...

HIV Infection Still On The Rise

...ing to stem the rising rate of HIV infection, warn two senior doctors in an editorial in this week's BMJ. An estimated 38 million people worldwide, including over 2 million children, are now infected with HIV, and a record 4.8 million became infected in 2003. The underlying reason for this continuing i...

Scientists document complex genomic events leading to the birth of new genes

...d primate biologists; it formed from the fusion of two mid-sized ape chromosomes and is the only cytogenetic distinction separating humans from apes. At the molecular level, however, the differences among the species are much more complex. Bork's team systematically searched the complete genomic sequenc...

Nano-Probes Allow an Inside Look at Cell Nuclei

... transfer of material between cells. "We can have two different quantum dots in two different cells, and watch as the cells exchange their mitochondria," says Chen, adding that their t...

NC State scientist finds soft tissue in T. rex bones

...r specimens, one 80-million-year-old hadrosaur and two 65-million-year-old tyrannosaurs. All of these specimens preserved vessels, cell-like structures, or flexible matrix that resembled bone collagen from modern specimens. Current theories about fossil preservation hold that organic molecules should no...

Gene vaccine for Alzheimer's disease shows promising results

..."Although human clinical trials are still at least two years out,theoretically, we are on the right track," he said....

Scientists identify molecular events that drive cell senescence

..."Although human clinical trials are still at least two years out,theoretically, we are on the right track," he said....

Beyond lithium for bipolar disorder

...eatment has proven to be a godsend for many of the two million Americans with bipolar disorder, it is not...s inositol. The also treated other slices with the two chemicals, but added inositol. The researchers used DNA microarrays--so-called "gene chips"--to det...

FDA Warns Consumers Not to Use Home-Use Diagnostic Kits Marketed by Globus Media

...* Pregnancy Test FDA learned of the problem from two consumer complaints. FDA has not approved or evaluated the performance of any of Globus Media's products. As a result, consumers cannot know with any degree of certainty that test results are correct. For example, a person testing positive for HIV (...

PANTHER Protein Classification System Database 5.0

...otations of fruit fly genes have beenavailable for two years as part of an ongoing collaboration withFlyBase. “The task of performing functional annotation of genomes ischallenging. Too often we rely simply on transitive annotation based ona BLAST match. The PANTHER system offers a much more sophisticate...

International trial of two microbicides begins

...xamine the safety and preliminary effectiveness of two candidate topical microbicides to prevent HIV infe...vision of AIDS. "It is a critical trial evaluating two topical microbicides with differing mechanisms of action," she adds. The microbicides to be tested ...

Duke Chemists Isolating Individual Molecules Of Toxic Protein In Alzheimer's, Parkinson's Disease

...e tug on the chemical bonds that hold together the two elevated monomers. By pulling on such bonds, the Duke scientists can deduce how much energy was required to bring the molecules together. Then, using their knowledge of protein chemistry, they can develop hypotheses about how those particular monome...

MetaChip provides quick, efficient toxicity screening of potential drugs

...xamine the safety and preliminary effectiveness of two candidate topical microbicides to prevent HIV infe...vision of AIDS. "It is a critical trial evaluating two topical microbicides with differing mechanisms of action," she adds. The microbicides to be tested ...

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