Tumor Suppressor Gene Located In Liver Cancer Cells
...treatments, the researchers said. The disease is often far advanced at detection, and the five-year survi...oth liver tumor therapy and diagnosis. Researchers often work backwards from the biological changes involved in cancer to find the genes responsible for thes......ochronologists, such limestone-forming groundwater often also contains minute quantities of dissolved uranium, which gets incorporated into the limestone crystals as they form. The most common form of uranium, U-238, is unstable. At a slow but steady rate, it sends off subatomic particles. The process tr...Computer Program For Quicker, More Detailed Mapping
...ds into small pieces. Usingstatistics to count how often particular pairs of markers remain together,computers can measure the distances between them and can determine theirorder on the DNA. Until now, generally available computer programs have had to test everypossible combination of locations for each s...Duke Researchers Show "Editing" Can Fix Faulty Genes In New Approach To Gene Therapy
... messenger RNA (mRNA). But mRNA copied from DNA is often full of superfluousinformation that has to be edited out before the mRNA is decoded into thefinal protein product. Cells have evolved an efficient system that usesRNA enzymes or "ribozymes" to cut junk out of mRNA and paste itback together again. Su...Duke Researchers Find Second Gene Linked To Blood Vessel Disorder
...ofessor of genetics, said in an interview. "People often ask, whystudy genes for a rare disease? First, the disease may be rare, but thegenes aren't rare. Everyone has these genes, and we would like to know howthey operate normally so we can understand what can go wrong. Second, whenit's your family with t...New Discovery About Genes Has Implications For Genetic Therapy
...t exactly where that information is transferred is often left to chance. The new intron approach could allow researchers to insert new information at specific sites along a gene, allowing considerably more control than is now possible. Ohio State University researchers reported their findings in the Ma...Race Plus Roaches: A Breathtaking Link
... in the inner-city are hospitalized three times as often and die five times more often from asthma than those of other races. The study included 66 boys and 21 girls, 48 Caucasian and 3...Mutate Or Die: New Polymerase Gives Desperate Yeast An Option
...ns in yeast, including basesubstitutions, the type often seen in cancer cells or oncogenes like p53 or ras in humans. His laboratoryis now searching for counterparts in humans to the two genes that code for zeta, and scientist Peter Gibbs has found onewhose sequence bears the markings of a zeta polymer...International Research Team Clones New Skin Cancer Gene
...inoma syndrome (NBCCS). People with this syndrome often develop thousands of skin cancers and may also hav...ell carcinomas. In those tumors, the mutation was often caused by exposure to ultraviolet light. Although NBCCS is rare, milder forms of genetic predisposit...Honeybees In The Wild Nearly Gone In North America
...form theirblood-sucking duties. The two mites also often carry invadingviruses. Tracheal and varroa mites spread when infested bees comein contact with bees from other hives or when uninfested beesraid the hives of weakened, infested bees, Tew said. "These mites decrease the honeybee lifespan to almost not...NADC Examines TB In Cattle and Swine
...onses. Cattle tested positivelyfor M. bovis most often when the Mexican tuberculin was used. Butthe research team concluded that there was no need to standardize the tuberculins. Plans are being made to use swine in studies by the NADC team to researchthe risk of M. bovis infection caused by the consu...Bark Beetle Infestation Spurs Multifaceted Study
... season,tree ring dating -- dendrochronology -- is often used to determine the ageof trees and their dates of cutting. Climate information, the history ofdroughts and wet periods, can also sometimes be garnered from the rings.Archaeologists use tree rings to identify the age of archaeological sitesfrom the......lleaguesis always good,the scientists reported,and often remarkable --99 or 100 percent accurate. The Proceedings papercontains a listing of trialsof the method on nearly100 different genes, 47of them from mammals(mostly mice), 45 from other organisms,including bacteria. For mammals,40 of 47 reconstructi...Low-Protein Diet May Reverse Kidney Disease
...nephrotic syndrome, a chronic kidney disorder that often leads to kidney failure. Scientists have not solve...nosuppressive drugs, the dietary treatment, though often difficult for patients to follow, has no side effects, says Walser. The diet excluded such high-prot...Study Shows Songbirds Switch From Bugs To Berries To Fuel Fall Migration
...nge." While many songbirds breed in forests, they often use coastal shrublandhabitats during fall migration. Rich in ripe berries during autumn, coastalshrublands may be especially critical in providing some migrants with thefruit-laden diet they desire. Yet today, these coastal habitats are underintense ...Cholesterol Anchor Helps Signaling Proteins Direct Development
...nd its newest stunt has revealed that cholesterol, often villified for its role in heart disease, actually wears a white hat during the earliest stages of life. In this week's Science, Johns Hopkins and Howard Hughes Medical Institute scientists report that hedgehog proteins, an unusual group of proteins ...Gene Discovery Could Overcome Aluminum Barrier To Higher Wheat Yields Worldwide
...he gene enables wheat to resist toxins in aluminum often found in acid soils. "No plant likes aluminum," he said. "It limits crop productivity on a large scale around the world." Overseas and in this country, about 5 billion acres of acid soil harbor aluminum, he said. "Now that rye's anti-aluminum gene...North America Hit Hard By Asteroid Strike In Yucatan 65 Million Years Ago
...nd South America. Modern relatives of these trees, often called"primitive conifers," include the Norfolk Island pine, Chilean monkey puzzleand Wollemi pine. "The basic point of the study is that we can determine the impact angle ofthis object and that the angle matters," D'Hondt said. Most scientists stud...Scientists Trek to Africa for Biosphere-Atmosphere Chemistry Study
...ht to produce ozone and other smoglike products -- often at levels approaching those of a high-pollution day in a major city. Satellite pictures show that the plumes of ozone stretch, at times, as far as South America. EXPRESSO may shed light on a global problem in biosphere-atmosphere chemistry. Plants......ood sources without the scouts to guide them. More often than not, the recruits ignored the alternative food sources and followed routes to the roots their scouts had found. The recruits may be following the scouts' signature scents, which are left in the tunnels or they may be following "map directions" ...