Scientists Identify Retrovirus-Like Components In Corn Genome
...nism to defeat them in some way." His group now is initiating studies to determine whether any of these mobile DNA segments are in fact fragments of infectious retroviruses. If so, the scientists will begin analyzing how the corn plants may have worked to prevent the retroviruses from causing disease. "If such ...Penn State Wetlands Project Seeks Scientific Evaluation Criteria
...ds, the Penn State Cooperative Wetlands Center is initiating another three-year wetland project, led by Brooks and C. Andrew Cole, affiliate assistant professor of landscape architecture, designed to discover how wetlands function, including how wetlands change over time and how human disturbances affect t...Calorie Restriction Reduces Age-Related Muscle Loss
...es in rat muscle. "We were surprised to find that initiating calorie restriction solate in an animal's life could reduce the muscle changes that occurregularly with aging," said UW Medical School professor of medicine RichardWeindruch. "Age-associated muscle degeneration is seen in mostmammals, including human...Scientists Discover How Genes Work Together To Control Neural Development
...the developing cells what kind of cell to becomeby initiating a cascade of internal molecular reactions called the "signaltransduction pathway." "Cancer can result if errors occur inthe signal-transduction pathway, giving a cell the signal to divide insteadof the signal to become a neuron," Carthew explains. "T...Aspirin's Preventive Action In Heart Attacks Tied To Genetics
...od, cellscalled platelets play the primary role in initiating blood clots when receptorson their surfaces bind to fibrinogen, making the cells "sticky." If theplatelets don't become sticky, clots won't form and heart attacks won't occur,he said. "However, our research showed that platelets in people who had the......develop this therapy further with the objective of initiating a humanclinical trial as early as the end of calendar 1998 which, if successful, willrepresent a major advance in the treatment of hemophilia B." "Our work extends previous results obtained in mice to a well-defined, naturallyoccurring, large animal ...... cell antigen receptors is one of the initiating events of a specific immune response. Astonishingly these important immune molecules that can be found constitutively in most tissues of the body lack in the normal central nervous system. Only under pathological conditions ...Naked DNA Rejuvenates Rheumatoid Rodents
... reduced. Although injection of plasmids prior to initiating arthritis with bacterialcell walls did not prevent the onset of disease, injections timed at differentperiods after symptoms began alleviated conditions in the later occurringchronic phase. Inflammation was greatly reduced and essentially no cartila...Jefferson Researchers Provide Leads To Potential Parkinson's Treatment
...clude handtremor, slowness in movement, difficulty initiating movements, difficultywalking, shuffling feet, decrease in speech volume, fatigue, and balanceproblems. In Parkinson's, sufferers lack the brain chemical dopamine due to thedeath of dopamine-producing nerve cells and their endings. Dr. Schneid...... to increase dramatically two tothree months after initiating treatment in five study participants. These CD8 Tcell levels remained high for about a year. The Pitt study also was the firstto show a drastic drop in the numbers after a year. Despite the small amount ofkiller T cells, levels of freely circulati...Fauci To Present New Insights Into HIV Latency At 12th World AIDS Conference
...rence in Geneva, Switzerland. "We have shown that initiating HAART as soon as 10 days after the onset of thesymptoms of acute HIV infection does not prevent the formation of a latentreservoir of virus," says Dr. Fauci. "By the time high levels of HIV aredetectable in the blood, the virus probably has spread t......cally with so-called effector proteins, thereby initiating cascades of protein-protein interactions that may finally lead to cell proliferation. To return to the inactive OFF state, Ras cleaves off the terminal phosphate moiety, the g -phosphate, of GTP in an enzymatic process, the intrinsic GT...Study Pinpoints Rare Molecular 'Transitions' As Possible Cause Of Skin 'Photoaging'
...oncluded that singlet oxygen may beresponsible for initiating chemical processes that lead to photoaging. ...e that'sgoing to make singlet oxygen. "The initiating molecule has a weak efficiency for absorbing the light,but when it does, it's highly efficient in ca...New Evidence Points To Role For Free Radicals In Alzheimer's Disease
...al benefit to patients? "People debate the initiating cause of Alzheimer's disease, but there'sgeneral agreement that there is an inflammatory component, and inflammation isassociated with oxidant stress," says FitzGerald. "So, it becomes relevantwhether drug targets associated with inflammation will re......gh risk, it generally should be tried first before initiating cholesterol-lowering drugs, says Fuster. If LDL levels can not be reduced by diet, add exercise. That's another message of research this past year. Increased physical activity can enhance the effects of low fat diet in reducing LDL levels. "Exerc...UCSF Researchers Pinpoint Molecule That Triggers Deadly Progress Of Pulmonary Fibrosis
...g the TGF Beta to bind toanother protein receptor, initiating the buildup of fibrous material. "TGF Beta is a widespread and potent molecule," said Dean Sheppard. "But if itwere able to become active in many places in the body, it would do great damage.The integrin normally allows it to do its work locally, whe...CU Research Team Unravels Mystery Of Larceny Among Tropical Ant Species
...cheese placed at the entrances ofindividual nests, initiating a string of thefts by ants that rippled from colonyto colony. Foraging ants generally took cheese pieces into their home nests withinminutes, said Breed. Since thieving E. ruidum ants from different nests wereusually lurking in the home nest, a tre...... to such genesas p53 and are strongly suspected of initiating lung tumor formation. The researchers conducted their study by examining DNA adduct levels innontumorous lung tissue samples from 143 lung cancer patients and blood samplesfrom fifty-seven these patients. Fifty-seven of the patients were currentsmok...Study Reveals Cancer Role Of Mutated Gene
...enes go uncheckedand cells proliferate abnormally, initiating oncogenesis."...Researchers Discover Fast Efficient, Controllable Way To Study Molecular Interactions
...itive to light hasproved a highly efficient way of initiating bonding of two proteins. UTSouthwestern Medical Center at Dallas researchers who designed thiscross-linking reagent and technique said this will be an important tool instudying multiprotein complexes and may also help with drug development. T...