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Tag: "raise" at biology news

Morphine for Chest Pain Increases Death Risk

...ican Heart Journal. "The results of this analysis raise serious concerns about the safety of the routine use of morphine in this group of heart patients," said Duke cardiologist Trip Meine, M.D., the study's lead author. "Since randomized clinical trials evaluating the safety or effectiveness of morphine ...

Two studies document rise of superbugs in the environment

...community-acquired MRSA infections in Texas should raise red flags for health care workers everywhere. "There have been deaths related to this organism, although the vast number are skin and soft tissue infections," said Sheldon Kaplan, MD, lead author of the Texas study. He added that because of this "ver...

Discovery of New Dopamine Action May Yield Alternative Psychiatric Drugs

...g cocaine and amphetamines, directly or indirectly raise dopamine levels. The neurotransmitter therefore plays a major role in drug-induced highs and in addiction, he explained. Neurotransmitters such as dopamine are chemical messengers that one neuron launches at receptors on another to trigger a nerve i...

Scientists analyze chromosomes 2 and 4

...tion, called a segmental duplication. "These data raise the possibility of a new tool for studying genome evolution. We may be able to find other chromosomes that have disappeared over the course of time by searching other mammals' DNA for similar patterns of duplication," said Richard K. Wilson, Ph.D., d...

Ancient immune defense mechanism is no match for HIV-1

..." The researchers also suggest that their findings raise a challenge to proposed therapeutic strategies making use of RNAi. "Because HIV-1 evades all other RNAi by point mutations, we reason that its requirement for an SRS is solely to shield this last 'Achilles' heel that we think HIV-1 cannot alter for f...

UN environmental agency steps up battle against marine pollution

...s of Hazardous Wastes and their Disposal, seeks to raise awareness on hazardous waste and marine pollution. The main area of cooperation is the environmentally sound management of hazardous wastes in order to prevent coastal and marine pollution and the two organizations will support each other with techn...

Mother birds increase progesterone to hatch females

...ales from one generation will be available to help raise the next generation. Although the finding is not of practical use in the near future for the poultry industry, Correa and Adkins-Regan say that understanding the basic mechanism of biasing sex ratios in birds could provide the foundation for learnin...

Making Sure Sacred Sheep Don't Become Extinct

.... Over time, though, others convinced the tribe to raise different breeds, so Navajo-Churro numbers are dwindling. This project is different from others Blackburn has worked on since the center accepted its first animal sample in 2000. "It's really a learning experience for us; it's a step beyond the biol...

Microscopes at microscopic size

... the way cells react to a drug. The biochips also raise the possibility of a micro-laboratory, the size of a credit card, which would be able to perform medical diagnostics, improving patient treatment by reducing the number of hospital visits needed for tests. The initial research has led to the creatio...

Scientists discover how Ebola virus infects cells

...ID Director Anthony S. Fauci, M.D. "These findings raise the possibility of a broad-spectrum antiviral therapy that could be effective against multiple hemorrhagic fever viruses." Senior author James M. Cunningham, M.D., of Brigham and Women's Hospital and Harvard Medical School in Boston, and his colleag...

New project aims to make large-scale lobster farms feasible

...tling on large submerged cages the company uses to raise fish. The cages, anchored in 100 feet of water, are about 50 feet high by 80 feet in diameter, making for a total of 12,000 square feet of lobster larvae-snagging surface area. In 2004, with $50,000 in funding from the National Oceanic and Atmospher...

Leprosy microbes lead scientists to immune discovery

...e cell's outer membrane, serving as a trip-wire to raise the alarm. The TLRs spur the monocytes to differentiate into the two rapid response cell types. Why this matters became strikingly clear when the scientists studied different forms of leprosy for the presence of the two cell types. (One of the types...

Emergence of cancer as major cause of childhood death in developing countries is not being adequately addressed

...ntry, the authors say. Local charitable groups can raise funds to support an oncology program. Another benefit of twinning would be broadening the scope of cancer research to include cases in developing countries. This would facilitate studies of the roles that genetic background, environment and lifestyl...

Discovery Promises Simpler Therapy for Sickle Cell Disease

...a disease, the researchers said. The findings also raise the possibility that defective nitric oxide processing by red blood cells may represent a new class of blood diseases. Patients with sickle cell disease have an abnormal form of hemoglobin. In the late 1990s, Stamler's team discovered that, in addit...

Pulsating ultrasound enhances gene therapy for tumors

... tumors through long and continuous exposures that raise the temperature inside cancerous cells, effectively "cooking" them. Under a technique introduced by King C.P. Li, M.D., M.B.A., from the National Institutes of Health (NIH), short pulses of HIFU can be used to prevent exposed tissue from becoming too...

US life expectancy about to decline, researchers say

...ulthood." The authors expect that this study will raise awareness of the importance of increased funding for obesity research and treatment, especially in children. They also point out that new investment into the Social Security system, while at the same time under-funding obesity prevention and treatmen...

Love at first smell

...as Boehm, Max-Plank Society said: "The new results raise the question of whether humans can also gather information about MHC on the basis of peptides." ...

Ants Genetic Engineering Leads To Species Interdependency

...her ants that theycan no longer feed themselves or raise their younger siblings.Recent work on ants suggests that we may need to add geneticengineering to the list of innovations ants have evolved to employ. Intwo species of harvester ants, populations have been discovered inwhich queens mate with males of...

Needling Chromosomes Reveals Cell Division Secret

...y and a sign that we're doing goodscience since we raise new questions. We lay the mechanistic groundworkfor the molecular explanations that have to be made. So, our colleagueswho do molecular work are both provoked and challenged by us," he said....

Mouse brain tumors mimic those in human genetic disorder

...velopmentof tumors," Gutmann says. "These findings raise the possibility thattargeted therapies for NF1 brain tumors may involve agents that preventthe supply of growth promoting factors provided by new blood vesselsand microglia."Next, the researchers used the mouse model to investigate a clinicalconcern....

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