At Life's Most Sensitive Stage, Embryos Cope With Stress
...loping frogeggs. DNA damage may make the eggs more susceptible to the fungus. Mammals also have DNA repair mechanisms; even in the protection of the womb,damage can occur during embryonic development. In the AAAS session, Pedersen,research director of the reproductive genetics unit at the University ofCalifornia......has been possible to developlines of mice that are susceptible to this disease. For example, mice that aredeficient in apoliprotein E (ApoE), an organizing molecule important tolipoprotein clearance from the blood, develop atherosclerotic lesions resemblingthose that occur in humans." These lesions are worse w...Amphibian Mortality Due To UV Radiation
... disease defense mechanisms, makingamphibians more susceptible to pathogens and parasites that may hamper normaldevelopment and increase mortality, Kiesecker said. For example, he foundincreased mortality associated with a pathogenic fungus (Saprolegnia ferax)infecting some embryos exposed to UV-B, while embryo...Drug-Resistant Infection Once Found Only In Hospitals Now Present In Community
...ntibiotics, community-acquired MRSAinfections were susceptible to drugs other than methicillin. However, theresearchers predict this may change over time. "This study should make physicians aware that community-acquired MRSA infectionsexist, but it should not change their current practice for treating theinfecti...Water Quality In Indiana's White River Basin Affected By Urban And Agricultural Activities
...s but only at trace levels. Shallow wells are most susceptible to contamination and provide insight into the effects of pesticides and fertilizers on ground-water quality. Pesticide concentrations typically decrease with depth in an aquifer. The presence of only low pesticide concentrations in shallow wells indi...No Ode To Joy From Food Scientists Over New Edition
...s not need to be washed. Fact : All produce is susceptible to dirt, insects, and harmful microorganisms;thus, all fruits and vegetables, regardless of growing method, should be washedwell before eating. Joy : Non-organic produce should be washed with water and a few drops of puresoap. Fact : Washing ...Agriculture and urban activities impact water quality in the South Platte River Basin
...ater resources in the Denver metropolitan area are susceptible to contamination from pesticides and VOCs. All sur...s in mountain wells indicates that ground water is susceptible to contamination from development and other human activities on the surface. "Downstream f......pulation, theCD4+ lymphocytes of these people were susceptible to HIV infection. It was onlyin the presence of the CD8+ cells that viral replication was stopped. The CD8+cells of non-HIV exposed individuals studied in the lab did not mount thisresponse. "We think this immunity results from exposure to ...USGS Says Central Columbia Plateau Water Quality Impaired by Agriculture, But Some Good News
...erally those less than 150 feet deep, are the most susceptible to contamination, the USGS report says. A reassuri...ies draw from wells at greater depths and are less susceptible to contamination from agricultural practices. "From the standpoint of human health, we were most co...Biochemist Solves Riddle Of Collagen Stability
...to create a stronger collagen that would not be as susceptible to breakdown in the body," Raines said. "This rese... unraveling at the molecular level, which makes it susceptible to enzymes that cause it to degrade. The aging process or geneticabnormalities can cause this unrave......spring. Spore and sperm are also both susceptible to being blocked in middevelopment, just before the cells from which they are produced undergo thefirst of the two divisions of their DNA. This interruption occurs at a stage ofmeiosis called pachytene and, in most cases, is temporary and beneficial...... Williams. "Without this barrier theseinfants are susceptible to hypothermia, water loss, electrolyte imbalance, andinfection," she said. Previous studies on fetal rat skin cells by UCSF researchers have shownthat formation of a competent barrier is accompanied by formation of amultilayered SC. Certai...Cystic Fibrosis Gene Protects Against Typhoid Fever
... in their lungs, these childrenbecome increasingly susceptible to life-threatening respiratory infections. Infection with Pseudomonas aeruginosa is one of the primary clinical features ofcystic fibrosis. Last year, Dr. Pier and his colleagues reported that thenormal CFTR protein acts as a receptor for P. aerugi...New Machine Slashes Time, Cost To Make Unique Lenses
...in their opticalproducts. But plastic aspheres are susceptible to heat andhumidity, and molding limits their glass counterparts to adiameter of about an inch. Even before reaching the mass-production stage, companies often spend hundreds of thousands ofdollars creating asphere prototypes the old-fashioned way; G...Fetal Lead Exposure May Reduce Immunity
...of early immune development which are particularly susceptible to persistent lead-induced alterations, it is possible that even short-term exposure of pregnant females, in rodents or in other species including humans, could compromise offspring immune function." Ongoing work in the project is focusing on a likel...Fish Farmers Must Learn Zebra Mussel Prevention From A To Z
...identify the points of their operation that may be susceptible to zebra mussel introduction and put measures in place to avoid infestation," Swann says. "The fish farmers would also establish a scouting program for the pest and decide in advance what to do if they find any." For example, operators may decide to ...Scientists Say Latently Infected Cells May Stoke the Fire of HIV Replication
...y even render the target cells more susceptible and the virus more infective, since cell-free HIV is believed to rapidly lose infectivity. Dr. Paul notes that the PAT model implies that low levels of HIV replication may ...Report Focuses On Managed Care Impact In Clinical Microbiology Labs
...anced. Additionally, the expansion of increasingly susceptible patient groups, such asthe elderly, fragile newborns, and immunocompromised patients increases the needfor rapid and accurate assessment of microbiological data. Such developmentsmake it increasingly important to identify the pathogen causing disease......g, highly competitive plants often seem to be more susceptible to parasiticinfestation than plants with a weak growth. The individual plant finds itself in a dilemma:Internal resource allocation favours either growth processes and efficient competition withneighbouring plants or resistance to parasites. In the c......nd ulcerativecolitis from occurring in genetically susceptible individuals." Brant is alsoan assistant professor of medicine. Inflammatory bowel disease includes Crohn's disease (CD) and ulcerative colitis(UC), chronic disorders that primarily affect the intestines, causing pain,severe diarrhea, intestinal blee...