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Tag: "background" at biology news

An elephant tail

...heart failure and sexual dysfunction, according to background information in the article. Prior studies suggest that L-arginine has the potential to reduce vascular (blood vessel) stiffness. Steven P. Schulman, M.D., of Johns Hopkins Medical Institutions, Baltimore, and colleagues conducted the Vascular Intera...

High-dose flu vaccines appear to safely boost immunity in elderly

...to prevent flu and its complications, according to background information in the article. Immune responses decrease with age, however, and currently available flu vaccines are not always effective in the elderly. Recommended vaccines contain 15 micrograms (ìg) of inactivated virus per strain. Wendy A. Keitel...

Higher levels of obesity associated with greater health risks

...ecially rapidly in the United States, according to background information in the article. From 1986 to 2000, prevalence of BMI of 30 or higher approximately doubled, while that of BMI of 40 or higher quadrupled and that of BMI of 50 or higher increased 5-fold. In 2000, 2.8 percent of all U.S. women, and 6 perc...

Eminent inventor of DNA fingerprinting gains new recognition

...Medicine), James Rothman and Andrew Fire. For more background information, see http://www.knaw.nl/heinekenprizes . The awards ceremony The six Heineken Prizes for science, scholarship and art are presented every other year during a special session of the Royal Netherlands Academy of Arts and Sciences. Thi...

Minorities, uninsured less likely to receive care at high-volume hospitals

...re at high- and low-volume hospitals, according to background information in the article. These differences may affect the ability to access or receive care at a high-volume hospital. Jerome H. Liu, M.D., M.S.H.S., of the David Geffen School of Medicine at the University of California-Los Angeles, and colleag...

Incidence of stroke decreases over last 50 years

...ologic cause of long-term disability, according to background information in the article. Prior estimates of long-term trends in the incidence and severity of stroke have varied. Determining trends could help guide health programs, public policy, and the allocation of research funding. Raphael Carandang, M....

Study finds the air rich with bacteria

...acterial populations. "We want to determine the background levels of airborne pathogens and other microbes be... The scientists also sought to determine whether background levels of airborne bacteria change from city to city, or are generally the same throughout a region....

Highly concentrated botulinum preparation for cosmetic injections can result in severe illness

...ult in respiratory failure and death, according to background information in the article. Two botulinum toxin preparations are licensed in the United States by the U.S. Food and Drug Administration for clinical use, BOTOX (crystalline toxin type A); and Myobloc/Neurobloc (toxin type B). Although botulinum toxi...

How ants find their way

... to search in the predicted place when a patterned background was introduced as a retrieval cue. Professor Colle...which cylinder was which ants needed the patterned background to be in a different position on the retina when they faced one or other cylinder. Accurate memory r...

Chemical tests of cell growth enter third dimension

...said. The surrounding empty cells provide a darker background that lets the fluorescence signal be measured even more easily. "You can use this as a device to monitor a drug's effect, whether you want to stimulate or inhibit cell growth," Yang said. "We have used it on colon cancer cells and mouse embryonic s...

U of S Vaccine and Infectious Disease Organization team discovers key step in flu virus replication

...tter,VIDO's Associate Director (Research). "VIDO's background in veterinary research means that when diseases like avian influenza develop, we have the resources to begin studying the disease fairly quickly." ...

Amateur boxing linked to brain cell injury

...velop chronic traumatic brain injury, according to background information in the article. Some studies have suggested that amateur boxers also damage their nervous systems, but because their shorter bouts allow fewer blows to the head and because they must wear safety equipment, the effects tend to be less sev...

Scientists explore how complex organs develop from a simple bud

... top scientists offering fresh ideas and pertinent background information to readers interested in anything from molecular to cellular and developmental biology. ...

Transmission of antibiotic-resistant bacteria linked to previous intensive care unit room occupants

...ncomycin-resistant enterococci (VRE), according to background information in the article. Researchers previously found that 29 percent of patients who acquire these pathogens develop infections or other complications within 18 months. Floors, beds, gowns, faucets and other hospital room fixtures are persisten...

Stroke symptoms common among general population

... had an undiagnosed or silent stroke, according to background information in the article. One previous study found that 11 percent of individuals age 55 to 64, 22 percent of those ages 65 to 69 and 43 percent of those older than 85 years show evidence of stroke despite never having been diagnosed with the cond...

Train your brain to hear your friends at a party

... are some of the worst places because the level of background noise is high, and so scientists call this the "co...especially when I was in the pub with friends. The background hubbub of the bar seemed to be the same level as the people I was talking to so I could barely hear ...

Older fathers more likely to have autistic children

... and repetitive patterns of behavior, according to background information in the article. Autism and related conditions, known collectively as autism spectrum disorders, have become increasingly common, affecting 50 in every 10,000 children as compared with five in 10,000 two decades ago. This increase is par...

Early-stage immune system control of HIV may depend on inherited factors

... the impact of an individual's genetic HLA Class I background implies that a successful vaccine would have to overcome genetic factors associated with a less protective response," he adds. Altfeld is an associate professor of Medicine at Harvard Medical School. He and his colleagues are working on a follow-up ...

ASU researchers test antibacterial effects of healing clays

... challenge So how did a clay mineralogist whose background is in low temperature geochemistry become involved with a health care project centered in the Ivory Coast? The scientific equivalent of an online dating or matchmaking service: "I answered a posting on the Clay Mineral Society's list serve placed by ...

Nanoparticles can track cells deep within living organisms

...isible in the scan," he says. "That eliminates any background signal, which often interferes with medical imaging. Moreover, the lack of interference means we can measure very low amounts of the labeled cells and closely estimate their number by the brightness of the image." The researchers believe that nan...

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