Researchers Identify How AIDS Virus Kills Cells It Doesn't Infect
...type of virus known as asyncytium inducing, or SI, strain usually succumb more quickly to AIDS. Since SIstra...f the people with advanced HIV disease harbor a SI strain of thevirus. "Right now, everyone's focused on finding ways to block CCR5," a molecule thatallows i...Birds Of A Feather: The Physics Of Flocks
..., parts of thecolonies of bacillus circulans and a strain of bacillus subtilis formed circles. Looking more closely at the circles, Vicsek saw that the groups of bacteriamoved clockwise in half of the circles and counterclockwise in the others. Whether they chose to move clockwise or counterclockwise was co......s contain a common molecular sequence, eachprotein strain has a distinct shape," said Fred E. Cohen, MD, PhD... the differences in the time that it takes a prion strain to causedisease," said Cohen. "Since the body can begin to clear the proteinaceous messfrom the bra...Antioxidant Action Of Vitamin E Significantly Reduces Heart Disease In Mice
...s quantitative markers for thatdamage. The strain of mice used in the experiments has been geneticallyengineered to lack the apoE gene, resulting in extremely high levels ofcholesterol and triglycerides in their blood. Atherosclerotic lesions develop inthe cardiovasculature of these mice that are si...Mice Lacking Gene Show Reduced Alcohol Preference And Sensitivity
... Related research is focusing on developing a strain of mice in whichexpression of the D2 receptor can be turned up or down, much like adjusting thevolume control on a radio. In the drinking study, mice with half the D2 geneappeared to have normal drinking behavior, but their locomotor activity wasalte...Oxygen-Carrying Myoglobin Not Necessary For Survival
...researchers made theirbreakthrough by developing a strain of mice lacking the gene to producemyoglobin, which transports oxygen from capillaries to mitochondria in heart andendurance muscle cells. Mitochondria are the structures within cells thattransform oxygen and other molecules into energy for all cellu...Ohio State Professor Receives Patent For Infectious Bursal Disease Virus Detection Kit
...osed to. “The farmer will then know what strain is causing problems on his farm so when the next group of chickens comes in, he can select the proper vaccine,” Jackwood said. Worldwide, there are currently about two dozen vaccines for IBDV and at least an equal number of viral str...Viral Vector Delivers Dystophin Gene To Mouse Muscle
...ll-sized dystrophin protein in an immuno-deficient strain of adult mice withDuchenne muscular dystrophy. At this year's meeting, Giovanni Salvatori, Ph.D.,post-doctoral research fellow in Chamberlain's lab, reported the same results inmice with a normal immune system. "Using this new version of our viral ...Mouse Study Trumpets New Way To Preserve Species
... produce viable eggs in immune-compromised mice, a strain of mice that can readily accept foreign tissues because its immune system has been suppressed. In those experiments, cryopreserved ovarian tissues from outbred mice or sheep were transplanted into immune-compromised mice. After hormone productio...Tracking A Killer's Progression
...tinues to be a globalproblem. If a drug-resistant strain should emerge abroad, Americans are only aplane ride away from potential exposure to it. In the United States, 41 caseswere reported between 1993 and 1996. Worldwide, there are 1,000 to 2,000 caseseach year, and there is always the concern that a s...Method May Be Key In Combating Diarrhea In Animals And Children
CHAMPAIGN, Ill. -- Scientists studying a rotaviral strain that causes severediarrhea in young children and neonatal pigshave isolated the virus's receptors -- where it binds -- on gastrointestinalcells and are beginning to test a synthetic mimic,which, when added to food, may block the virus. In addition, t...Successful Hemophilia B Gene Therapy In Dogs May Justify Human Experiments
...rematurely. Tests have shown that a unique strain of North Carolina hemophiliac dogsinjected with corrected genes produced the blood clotting protein known asfactor IX and are continuing to produce it steadily more than a year and a halfafter treatment, scientists say. Not making the clotting factor...Bacteria Becoming Increasingly Resistant To Antibiotics, But New Vaccines Are On The Horizon
...he infecting organism was an antibiotic-resistant strain ofpneumococcus. "If you look at each year of the three-year study and look at the percentages,you see a dramatic increase in antibiotic resistance between the second year,for example, and the third year," said Dr. Arditi. "In the second year, th......charomyces cerevisiae Hansen: a radiation-tolerant strain of Baker's yeastthat can survive in the core of a nuclear reactor. Shewanella benthica: a high pressure bacteria discovered living in the PuertoRico trench. Halobacterium halobium: a salt-loving extremophile from the Owens Dry Lake inCalifornia Al......PV is a sexually transmitted virus. HPV-16 is one strain of the virus that canlead to cervical cancer. Over 10,000 new cases of cervical cancer are diagnosedin the United States each year. Cervical cancer is caused by HPV-16 when the proteins known to scientists as E6and E7 disable other cellular proteins...Hopkins, Israeli Scientists Link Soybeans With Pain Relief
...ossiblesource of difference in the model, from the strain of rat to possible changes insurgical technique -- to the type of rat chow used. The conclusion: It was the rat chow. The American chow had higherproportions of soy protein than the Israeli chow. When the researchers returnedsoy-fed rats ...Largest Acoustics Meeting In History Expected
...and compressing sandstone rock with high-magnitude strain forces can "condition" the rock to respond with less stiffness to the applied forces after a few minutes, so that it behaves like a softer spring. Intriguingly, the rock remains soft for minutes or even hours, constituting a sort of "memory" of the ...Scientists Discover Key Cog In Receptor That Governs Ripening
...eecker's team discovered a similar gene existsin a strain of blue-green algae, Synechocystis, a member of a class of organismsthat are among the oldest known. Fossil evidence for such primitivephotosynthetic bacteria places them on Earth as long as 3.5 billion years ago.That, said Bleecker, suggests "a very...NYU And Rockefeller Scientists Design Molecules That Stymie A Notorious Bug
...Staphactivates the global regulator, and that each strain of Staph tested produced aspecific peptide. Moreover, the peptide produced by one strain inhibited theglobal regulator of a second strain, meaning that the first strain couldpotential block...Protestors Are Up In Arms Over Experiments That Give Chimps AIDS
...accines could get overlooked. Fultz disagrees:"The strain I have is very much like HIV in humans." Irrespective of the scientific arguments, however, many people wouldoppose the experiments on ethical grounds-particularly in the light of currentefforts to grant legal rights to chimps and other grea...