Tag: "procedure" at biology news

NICHD Researchers Discover Gene For Major Brain Structure

...o conduct their experiment, the researchers used a procedure known asgene knockout to inactivate the Lhx5 gene in the mouse, Dr. Westphal explained. They found that embryos lacking Lhx5 function developed a malformed hippocampus. For this brain structure to develop normally, cells must first migrate to thecor...

Study Suggests Vaccine Increases Survival In Ovarian And Breast Cancer Patients Following High-Dose Chemotherapy And Autologous Stem Cell Transplant

... patients when compared to the stem celltransplant procedure alone. The data was presented today at the 35th annualmeeting of the American Society of Clinical Oncology (ASCO) in Atlanta, May15-18, 1999. The research team at the Fred Hutchinson Cancer Research Center, led by LeonaHolmberg, M.D., Ph.D., and Bren...

When Good Science Isn't Enough...

...learning process. Instead of following the typical procedure that includespublic meetings, giving speeches to the public, accepting letters and makingdecisions behind closed doors, managers start by learning what's important tothe public. The public learns the legal limitations of the decision-makers.Everyone ...

Procedure, new apparatus may allow relief from incontinence

...of diapers and limitedactivity. In some cases, the procedure can be conducted up to 50 years after the injuryoccurred....

Cardiac surgery patients at higher risk

...re often concernsin delaying a needed surgery. The procedure has to be done slowly so as not todisrupt the ratio of potassium outside the cell to that inside---which wouldalter the cell polarity. Wahr has this advice in the wake of the study. "Be wary of low potassium levels.They're not as safe as you might th...

Fighting skin cancers with computers and technology

...tissue and assess it immediately, layer bylayer, a procedure that is exquisitely precise. Any remaining cancer...cally removed while sparing all normaltissue. The procedure is designed to optimize cosmetic results whilesimultaneously achieving the highest possible cure rat...

Many patients not treated for easily corrected life-threatening condition, new study shows

... The correct treatment, they report, is the simple procedure of increasingpatients' salt concentration intravenously within recommended guidelines,usually only for about two days. But about half of medical professionalsnationwide mistakenly believe that such a sodium chloride IV infusion may causebrain damage,...

Lab on a chip? Cheap, disposable UD biosensor uses gold-on-plastic design

...pular, but more indirect andsubjective, laboratory procedure known as the latex agglutination test (LAT),according to Kaler and his coinventor, Research Assistant Prof. Orlin D. Velev. The widely used LAT procedure, first developed in 1956, makes it possible toscreen bodily fluids for a host of diseases--from ...

Plant pathologists to discuss anti-crop bioterrorism and food security, August 1999

...athogen identification as well as a formalnational procedure for surveying and reporting new plant diseases could reducethe destructive effects of deliberate pathogen releases," says Bob Forster,University of Idaho Research and Extension Center. Forster, Leach and Schaad as well as Thomas Frazier, GenCon; Wal...

Scientists clear hurdle in effort to destroy experimental brain cancers with viruses

...-specificvirus into the patient's bloodstream in a procedure resembling angiography. The study was conducted in rats implanted withhuman tumors. Brain cancer typically is aggressive--it often results in multiple tumors that neither the surgeon, radiation, nor chemotherapy canremove--and is quite deadly. Most p...

Jefferson scientists create first transgenic mouse model of hepatitis B-based liver disease

... arereconstituted with a normal immune system in a procedure akin to bone marrowtransplantation, they do not recognize the virus as -- self-- and develop liverdisease. The researchers report their results in August in the journal NatureMedicine. "The mice see the virus as foreign, which is wha...

New gene therapy found safe for treating coronary heart disease

....However, many patients cannot be helped by either procedure because theirdisease is too severe or too widespread. "So this research arose out of a verylarge problem," Rosengart says. Crystal compared the gene therapy to a road crew building just enoughnew roads to move traffic around a blocked highwa...

UT Southwestern researchers engineer cells that may hold key to treating inflammatory diseases

...lved themolecular engineering of cells in mice - a procedure that could eventually leadto the prevention and treatment of inflammatory diseases such as rheumatoidarthritis. "What we did was to change the concept entirely. We tried to convert dendriticcells (which signal for an immune response) into cells that ...

LSU Ag Center researchers look for better ways to assess pollution in Tangipahoa River

...method for south Louisiana studies. One promising procedure uses an additivethat can allow testing without incubating samples and can differentiate betweenfecal coliform and coliforms. "There's a body of evidence that in tropical and sub-tropical climates, thestandards can't be considered reliable," Achber...

Researcher finds way to kill bacteria in tiny places

...al Center's Audubon Sugar Institutehas developed a procedure for controlling bacterial colonies in dental equipmentand other hard-to-get-to places. While talking with a colleague from the LSU School of Dentistry, the AgCenter's Dr. Donal Day realized that the problems he was facing in sugar millsare similar ...

Electronic dental anesthesia helps allay needle injection pain

...ped each child during the procedure to assess four behaviors: quiet; crying; movement; and struggling with crying. They found thatthe children receiving the activated EDA cried and movedless frequently than thos...

Penn researchers find ovary removal reduces risk of breast cancer in women withBRCA1 mutation

...on," says Rebbeck. "We caution, however, that the procedure does notcompletely eliminate the risk of the disease." In Rebbeck's study, ten womenwho underwent BPO subsequently developed breast cancer. The researchers looked at women who had a BPO because ovaries produceestrogen, a hormone associated with ...

Gene mutation tied to deafness found in African-Americans and Caucasians

... are expensive, about$30,000, and it's a difficult procedure for kids to go through." Shores and Rohlfs plan to test the DNA of the 220 children who havereceived cochlear implants at UNC. They will begin by looking for mutations inthe connexin 26 gene, including the 35delG mutation. "In terms of learn...

Woman pregnant after selecting healthy embryo

...e it showed no signs of genetic abnormalities. The procedure is called preimplantation genetic diagnosis (PGD) ...creases the risk of chromosomal abnormalities. The procedure was performed at Oregon Health Sciences University HSU Fertility Consultants Clinic last June. The w...

Human genome bears a virus related to HIV-1

...s. In the case of animal-to-human transplants, the procedure brings genetic material from two different species into close contact. "You now give these viruses an opportunity for genetic exchange, an opportunity not too different from what may have created the REV activity in the first place," explained Cullen...

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