Change In HIV May Precipitate AIDS
... closely mimicking, in vitro, HIV infection in the body (in vivo). The NICHD scientists have overc...are the predominant form of HIV found in aperson's body early in the disease process. Later in the course of the disease,a different strain of the virus of...Allergies To Rubber Affect 12.5 Percent Of Health Care Workers
...archdonning powder inside the gloves and enter the body through inhalation when thegloves are pulled off and the powder becomes airborne. Hamilton's group studied 168 Hopkins anesthesiologists, firstidentifying those already allergic with "real life" exposure: wearing a gloveand inhaling the powd...Vitamin D Deficiency Appears Common In Hospital Patients
... general population as well." Vitamin D helps the body absorb minerals such as calcium and phosphorus, whichare critical components of bone. The body manufactures the vitamin in responseto sunlight, and its primary dietary source is through fortified...Gene-Reading Problem Linked To Lou Gehrig's Disease
...hing may be wrong in the biochemical machinery the body uses to decodetheEAAT2 gene, Rothstein speculates. It's also possible that there is an acquired or inherited mutation in theintrons of EAAT2that gives the wrong cues during the editing process, Rothstein says. The new finding is among the ...Vascular Surgeons Test New Treatment For Abdominal Aneurysms
...rta --the main artery supplying blood to the lower body -- through a small incision inthe groin. Blood th...frame is flexible atcold temperatures but stiff at body temperature. This enables the cloth supportto expand to fill the necessary space, excluding the ane...UNC-CH Researchers Discover Key Cancer Control Mechanism
...known as MDM2 and in the process helps protect the body against cancer,University of North Carolina at Cha...eveloping tumors," he said. Soon after the body detects damage to DNA that might lead to cancer,normally low levels of P53 skyrocket and halt cell p...... in which most fat exists infood as well as in the body -- may mean a higher risk for heart attack. Therefore, the scientists say, high blood levels of triglycerides should beconsidered an independent risk factor for heart attack. In the study, men with the highest levels of triglycerides were mo...... followed the model of the spider, which keeps its body supported and stable while walking. Goats, while nimble, are unstable during the brief times that all their feet are off the ground, the same as humans. The wheelchair has an aluminum frame with the plastic seat from a desk chair mounted on top,...RNA-Dendritic Cell Combo Shows Promise As A Universal Cancer Vaccine
...goal is to wipe out cancer cells and then keep the body protected fromnew cancer growth but much work remains to be completed before such an agentcould be available. The potential therapy, which already is being tested in cancer patients,just requires a sample of blood to extract white immune cell...Liquid Crystals Light Up Simple Chemical Test
...body -- a molecule like those producedby the human body in response to an infection -- was present in a test sample. First the researchers spread an ultrathin layer of gold atop an inch-squareglass plate, creating a microscopic landscape of gentle, parallel hillsand valleys. Within that landscape they p...Caribbean Lizards Evolve Independently
...umented how species differ in theirhabitat use and body proportions. Detailed studies on more than 50 of the 150Caribbean anole species indicate that species have adapted to use differentparts of the environment by evolving differences in limb length, toepad size andother characteristics. These studies ......lessly tagsubstances and trace their effect in the body through PET scan images. ...a radiotracer, a patient can be examinedby a whole body PET scan to determine whether a tumor is malignant (high glucosemetabolism) or benign, or whether th...Butterfly Wings, Beetle Horns Teach Biologists Basic Lesson In Development's Laws
...t arm. Butif you are malnourished as a child, your body would have been smaller and yourarms proportionate...ause of some communication between the arms andthe body as a whole. "While many developmental biologists, and certainly the lay public,haven't pai...Seeing How the Brain Changes During Aging
...lessly tagsubstances and trace their effect in the body through PET scan images. Thefollowing is a summary of one paper concerning radiotracer chemistry that willbe presented in Dallas at the national meeting of the American ChemicalSociety, world's largest scientific society. SEEING HOW THE BRAIN CHANGE...Link Made Between Human Growth Hormone, Bone Quality In Mice
... humangrowth hormone. According to Goldstein, mean body weights of the two groups were identical untilthe ...the transgenic mice were 25 to 30 percent largerin body weight and size than their littermate controls," Goldstein said. "At 16weeks, the femurs or long up...US-Cuban Scientific Collaborations Jeopardized By Travel Restrictions
...Until that occurs, the report callsfor a qualified body of scientists to review the legitimacy of requests and anappeals process be created for denials. Denials, the report urges, should bebased on clear, consistent, and stated policies. For Cuba, the report recommendsthat all scientists be allowed to tra...New Test Opens Window On Corrosive Free-Radical Activity In Individuals
...y anddirectly measure the corrosive effects in the body of these highly reactivetypes of oxygen nor to assess the effectiveness of any countermeasures thatmight be taken. Now, University of Pennsylvania Medical Center scientists have developeda new test to accurately and noninvasively measure free......ncer. Increasing levels of theseenzymes means the body is able to produce more tobacco-related carcinogens....Dietary Determinants Of Iron Stores In A Free-Living Elderly Population: The Framingham Heart Study
...pidemiologic studies have found a relation between body iron stores and risk of chronic disease. Iron-abso...ticipants. Serum ferritin was used as a measure of body iron stores in 634 free-living elderly (67--93 y of age), and dietary intake during the previous yea...Echocardiography Is Effective In Measuring Microvascular Damage From Heart Attacks
...eventing return of normal bloodflow even after the body recovers from a heart attack. This can put a patientat risk for later complications, such as another heart attack, congestive heartfailure or stroke. Researchers compared CE to MRI by blocking coronary arteries in animalmodels for 90 minutes...