The Best Molecular Snapshot Yet Of Cells Affected By Alzheimer's Disease
...atlydivide up the cells into two camps: those that came from patientswith the disease and those that did not. "Different cells need adifferent repertoire of molecules to function," says Chow. "Wefound a global difference in this repertoire between cells fromhealthy brains and cells from brains affected by...Babbitt To Help Explore Depths Of Lake Tahoe
... "In the late 1860s, when Mark Twain first came to Lake Tahoe, thesewere the clearest waters in the world, with water visibility of more than 160feet. But that was before the Comstock Lode silver strike, clear-cutting ofnative trees, and two stroke engines," Babbitt said. "Now visibility in the...Blindness Linked To The Cytoskeleton?
...scribed genes). Indeed, the breakthrough came from such a trapped exon that showed significant homology to a transcribed sequence in the database and finally identified the full length transcript of the RP2 gene in a cDNA library. Seven out of 38 patients with X-chromosomal RP show...Duke Studies Show That Environmental Effects Of Dams Extend To Insect Life
... sites onlarger island and mainland locations, she came to a quick conclusion. "The bigthing I found was that there were hardly any butterflies on these small islands,whereas if you went to a larger island or a continuous forest the densities aremuch higher," she recalled. She found this puzzling,...Hopkins Study Shows High Prevalence Of Domestic Violence
...of their survey of 3,455 women age 18 and over who came fortreatment to 11 community hospital emergency departments in California andPennsylvania will be published in the August 5 issue of the Journal of theAmerican Medical Association. The women in the study were seen in the emergency departmen...Paper Wasp Queens Wait To Hijack Or Adopt
...adopting for a long time, but we thought thequeens came from destroyed nests or were subordinate queens who had left theirprevious nests. The fact is, in the field we didn't know where they all camefrom. Obviously, adopting is not the only reproductive strategy that waspsengage in, but it is a strategy ...Milestone In Mitochondrial Structure Revealed
...roms. Images of thecytochrome bc1 complexes, which came from cow heart cells, provide the mostdetailed and complete pictures of the complex ever reported. Every cell in the body contains hundreds of mitochondria which, together,provide about 90-percent of the energy that a cell needs to carry out its lif......l differences. The significantdifference, however, came in adult survivability. "We found that the females and males in the 'M' lines livedsignificantly longer than the `S' line males and females," said Promislow. This fact supports the propositionthat females with a choice of mates are able to se...Data Support Idea That Zinc Plays Key Role In Fight Against Anorexia
... is 36 amino-acids long and found in brain tissue, came as a mild surprise, Shay said. Since the compound had been recognized for its role in stimulating appetite, he had theorized a decline in its production in times of zinc deficiency. Instead production increased but the compound failed to produce its ...Loss Of Tumor Suppressor Gene Triggers Colon Cancer
...in complex promotes errant cellgrowth. The break came when the team used a powerful screening procedure to sortout the genes that are turned on or off by APC. They found that thec- MYC gene quickly shut down after APC was applied, giving them directevidence linking APC to c- MYC , a known oncogene. ...Screening In Women Army Recruits Shows High Chlamydia Infection Rates
... Army," says Gaydos. Funding for the study came from the Department of the Army. Other researchers are M. Rene Howell and Barbara Pare, of Johns Hopkins;Thomas C. Quinn, M.D., of Hopkins and NIH; Kathryn Clark, M.D., and Joel Gaydosof The Henry M. Jackson Foundation, Rockville, Md.; Doroth......mical reactions, has bolstered the notion that RNA came before protein, butmore challenges lay ahead for evolutionary biologists before they could espousethe RNA world view. For one, there are only seven known ribozymes innature, nowhere near enough to sustain the range of reactions in an RNA world. Furt...Jurassic Beetle: CSIRO Entomologist Discovers Living Fossil
...s how the two specimens of the new Omma species came to stumble into the entomological record books. "We know next to nothing about them, because they are so rare," Dr Lawrence says. "There are a couple of related species which have been found in eastern Australia, and one specimen of an ommatid ...Goats And Spiders Are Working Together To Create A Novel Material
...ring a fly to a screeching halt. Evolution came up with a two-pronged answer to this problem. First camea rock-solid protein, capable of making many bonds with its neighbours. Then,the spider developed a unique way of spinning the protein into a whisper-thinthread. As the spider secretes the prote...Ribozymes Come Ready For Action
...h x rays. Inspired by "desperation," Doudna's team came up witha nifty trick for overcoming the problem. Doudna's group attached an RNA-binding protein onto a region of the viralribozyme where it wouldn't interfere with the ribozyme's activity. The proteinprovides surface contacts that enable the ribozy...Four More Lemurs To Be Released Into Madagascar Jungle This Fall
...evaluated for suitability to release. Both animals came from theHogle Zoo in Salt Lake City. Two other ruf...e were extremely disappointed, but both incidences came well after wehad released the animals into the forest," said Welch. According to Welch, ifthe death...Glenn To Perform Purdue Soybean Experiment In Space
...ays Vierling. "John Glenn performing my experiment came as a complete shock to me. If I had written a scenario myself, it would not have been this good." Vierling, an adjunct associate professor of agronomy at Purdue University and director of the Indiana Crop Improvement Association's genetics program si...Virginia Tech Scientist Seek Genetic Solution To Malaria
...Research during a three-year fellowship before she came to Virginia Tech inJuly. She will continue to collaborate with the Army, which has a variety ofresearch programs concerning mosquitoes because of the potential for soldiers tofind themselves in areas where malaria is prevalent. Her work is a...... All 18 dwarfs (aged newborn to 28 years old came from a single inbredfamily living in two neighboring villages in an area where marriages betweenfirst-degree relatives are common. One, affected, dwarf couple had a son (alsoaffected), demonstrating fertility in both sexes. The height, weight...The Comet That Wiped Out The Dinosaurs May Have Washed Up Boulders Onto Hills In Arkansas
... high regions of Arkansas. This suggests the rocks came from a coastalarea, he says. Patterson has ruled out other explanations. One possibility is that theboulders were pushed into position by glaciers, for instance. But glaciers nevercame that far south, he says. A river could have moved the roc...