Dog Blindness Gene May Help Humans
... now have a road map and have identified signposts indicating where to look for the defective genecausing prcd, a possibility that did not exist before," adds co-author Kunal Ray, a molecular geneticist at Cornell. Recent advances in genetic therapy may allow doctors to treat retinitis pigmentosa (as well as ro...New Sickle-Clawed Fossil From Madagascar Links Birds And Dinosaurs
...long and shows evidence of well-developedfeathers, indicating it was a capable flyer. But unlike most birds, Rahona alsohad a long, bony tail and sported a large, sickle-like killing claw at the endof a thick second toe on the hind foot. This unique toe and claw is identicalto the one carried by a group of fa...Vitamin D Deficiency Appears Common In Hospital Patients
...between 8 and 15 nanograms per milliliter (ng/ml), indicating moderatedeficiency; and 65 had levels less than 8 ng/ml, indicating severe deficiency. In a subgroup of 77 patients with none of the known risk factors for vitamin Ddef...Butterfly Wings, Beetle Horns Teach Biologists Basic Lesson In Development's Laws
...non was demonstrated in two very differentspecies, indicating that it is able to be generalized, Nijhout said."Evolutionarily, butterflies and beetles are about as far apart as people andalligators," he said. Particularly intriguing, Nijhout said, was that the butterfly andbeetle experiments both sho...Smog Spreading To South Pacific
...ced back tobiomass burnings on distant continents, indicating that the smog created by theburning is long-lasting and migrates great distances. In 1996, for example, two research planes flying in the South Pacificencountered ozone from biomass burning on 50 percent of their flights, Rowlandsaid. One a...Extra Choline During Pregnancy Enhances Memory In Offspring
...kly and easily tothe smallest electrical stimulus, indicating their hippocampus was primed tolearn. "What this suggests is an actual change in brain circuitry brought aboutby added choline during a critical window of prenatal development," Swartzweldersaid. "The brains of choline-supplemented rats have ...Water Quality In Indiana's White River Basin Affected By Urban And Agricultural Activities
...tly have degraded communities of fish, a disparity indicating nonhabitat stresses (such as poor water quality). In areas where the fish communities are poorer than expected on the basis of fish habitat present, nutrient and pesticide concentrations are high. The White River Basin study is one of more than 50 st...From The Home Front To The River Front, USGS Updates Water-Quality Information
... nearly 70 percent of the household wells sampled, indicating that the water should not be used for drinking without treatment. Fecal coliforms and Escherichia coli, bacteria that indicate contamination by human or animal feces, were found in water from 25 and 30 percent, respectively, of the wells tested. Few......tuaries, such as where the Altamaha River empties, indicating they are exclusively marine and specializedfor the salty water found along the Georgia coast. Moran really needed more proof that the probe was correctly targetingmarine alpha bacteria, however. So she and Gonzlez used a technique calledpolym...... parallel (the same)for the following 1 to 5 years indicating no further treatment advantage," theauthors write. Most people who die of a heart attack do so in the first 24 hours. Immediaterestoration of blood flow to the heart after a heart attack -- a process calledreperfusion -- is critically important to p...15 Drugs, Dyes And Other Chemicals Newly Listed As Known Or Likely Human Carcinogens
...porins labeling already calls attention to studies indicating apotential cancer risk. The drug is used to help p... market several yearsago when tests were published indicating it caused cancer in laboratoryanimals. It is also an intermediate in the manufacture of dyes. 1,6-D......Gruss published two reports in Nature indicating the role of members of the same family of genes, P... prolong their survival up to six months, indicating that lethality is due to a defect in the thyroid. Analysis of the thyroid gland indicat......and rice, but not in bacteria, mammals and yeasts, indicating that it is a general but unique component of starch biosynthesis. The biochemical mechanism by which the R1 protein phosphorylates amylopectin remains to be elucidated. It is not known which substrate acts as a...Remarkable Skull Of Predatory Dinosaur Unearthed On Madagascar
...eeth -- hundreds of them, each withtiny serrations indicating the predatory habits of the animal. "Our primarygoal was to find the owner of those teeth and, as luck would have it, we hit thepaleontological jackpot," explained Sampson. "This extraordinary skull ranksamong the best known for any dinosaur." ...Duke Researchers Finds That Moderate Caffeine Use Boosts Blood Pressure, Potential For Heart Disease
...r stress chemical,during everyday work activities, indicating that caffeine made the day morestressful. The question he wanted to answer in the current study was whether ornot caffeine acted directly on blood pressure, or whether it elevated bloodpressure through its effect on stress and activity levels. ......on watches for the lights to pass, a brighter glow indicating a larger amount of one chemical, a dimmer light meaning a smaller quantity. In this way, Lillard and Chiu measure the relative amounts of the various chemicals. The chemists then identify each chemical compound in collaboration with researchers led ...HIV Infected Adults In UCSF Study Show Evidence Of Thymus Activity
...HIV disease progression hadabundant thymic tissue, indicating that the thymus might be triggered intoaction by the first losses of T cells. The research findings are reported in the June 1 issue of the Journal ofClinical Investigation, with an accompanying commentary by Anthony Fauci, MD,director of the Nationa...International Research Team Announces Discovery Of Two Species Of Feathered Dinosaurs
...ot yet fully resolved."At this point, the evidence indicating that birds are derived from dinosaurs isabsolutely overwhelming," says Dr. Norell. "We have dozens of anatomicalattributes that unambiguously connect the theropod dinosaur lineage to that ofbirds. The discovery of the feathered dinosaurs from China...Pharmacologists Discover Linkage Of Key Cell Switches
... togetherdid not depend on the catalytic activity, indicating that their connection didnot relate to their acting on each other in their role as enzymes. However,other experiments showed that PP2A did act enzymatically on CaMKIV to remove aphosphate, resulting in inactivation of the kinase. Taken togeth...Ecological Consequences Of Jasmonate-Induced Responses For Plants In Native Populations
...ng on plants with high nicotine concentrations, indicating that this induced defense may have both ecological benefits and costs. Moreover, 6% of an N. attenuata plant's total nitrogen content is in this toxin alone in an induced plant, and this nitrogen is not available for other activities suc...