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Tag: "indicated" at biology news

Scientists find Antarctic ozone hole to recover later than expected

...rt to occur until 2018. Newman's team also further indicated that greenhouse gas-forced climate change will have only a small impact on the Antarctic stratosphere and recovery of the ozone hole. The upper ozone layer is important because it blocks 90-99 percent of the sun's ultraviolet radiation from making c...

UC Davis study finds HIV hiding from drugs in gut, preventing immune recovery

...-even when blood samples from the same individuals indicated the treatment was working. Results of the three-year study appear in the August issue of the Journal of Virology (available online today at http://jvi.asm.org ). "This is the first longitudinal study to show that, while current HIV therapy is quit...

Spray-on skin relieves emotional trauma for child burn victims

...volved in the study. The vast majority of children indicated they enjoyed social outings more when wearing Microskin. Most children could not feel Microskin on their skin. The study also showed that use of the product lead to improvements in how the patient's family functioned. Internationally renowned bur...

Atmospheric ozone recovering in mid-latitudes, report shows

...udy published in the journal Nature on May 3, 2006 indicated a stabilization and slight increase in the total-column stratospheric ozone in the past decade. This work, led by Betsy Weatherhead at the University of Colorado at Boulder, relied on satellite and ground-based ozone data used in 14 modeling studies ...

Chimpanzees can transmit cultural behavior to multiple 'generations'

...r to that in humans. Unlike previous findings that indicated chimpanzees simply conform to the social norms of the group, this study shows behavior and traditions can be passed along a chain of individual chimpanzees. These findings, based upon behavioral data gathered at the Yerkes Field Station in Lawrencev...

Parkinson's disease mechanism discovered

...-synuclein toxicity in yeast cells. "Our findings indicated that this ER-to-Golgi trafficking pathway is intimately coupled to the pathology, although in humans there are likely others involved as well, given how many genes we found that modified alpha-synuclein toxicity," said Lindquist. "But these findings ...

Microscopic passengers to hitch ride on space shuttle

...arth, according to Nickerson. Prior studies have indicated that spaceflight weakens the human immune system and that some microbes become more virulent when grown under conditions that simulate spaceflight, thus increasing the risk of astronauts becoming sick during flight. Whatever the mission or its durati...

Montreal researchers identify defects of immune cells

...-like disease. Findings from this research further indicated that a diminution and functional defects of both dendritic cells and CD4+ cells cause susceptibility to candidiasis in these transgenic mice by preventing T lymphocyte mediated acquired immunity to Candida albicans. The results also showed extensive ...

Fish virus in Northeast spreading to other fish species

...als results of tests on 54 fish of 10 species that indicated VHSV in smallmouth bass and burbot. To date, Cornell researchers also have tested for the virus in lake sturgeon, brown bullhead, rock bass, yellow perch, pumpkinseed and black crappie. VHSV causes fatal anemia and hemorrhaging in many fish species ...

Possible birthplace of malignant brain tumors identified

...t invaded surrounding brain tissue. Their analysis indicated that the PDGF infusion caused the stem cells to halt their normal production of mature brain cells and launch into the abnormal proliferation pathway. Importantly, the researchers found that stopping the PDGF infusion caused a complete regression of ...

A dichotomy in migration patterns found for sea turtles in east Atlantic

...y 23rd issue of Current Biology. Past studies had indicated that the loggerhead sea turtle (Caretta caretta), which reaches sexual maturity at about 30 years of age, typically undergoes a shift from an oceanic juvenile stage to a shallow-water, coastal adult stage. But the new findings--obtained by newly-impr...

Gene first linked to rare disease may trigger skin cancer, other tumors

...to develop in hair-follicle cells. Earlier studies indicated a role for CYLD in inflammation, but the mechanism behind the gene's control over tumor growth had remained uncertain. A team led by Reinhard Fässler of the Max Planck Institute of Biochemistry in Germany and his colleagues has now found that CYLD h...

Combating anthrax: Results of study published this month as researchers look for a better vaccine

...for testing of this vaccine in the future." Gorse indicated that the investigational vaccine, made by VaxGen Inc., demonstrated a clear relationship between the amount of vaccine administered and the subsequent immune response. The study was designed to evaluate the safety and immunogenicity of escalating do...

Molecular DNA switch found to be the same for all life

...emblies are closed. In addition, the architecture indicated that the AAA+ superhelix will wrap coils of the DNA double-helix around its exterior, causing the familiar "spiral staircase" of the DNA to deform as a first step in the separation and unwinding of its two gene-carrying strands. "It is likely tha...

Ultra low-dose estrogen shown safe for post-menopausal women

...dy sponsored by the National Institutes of Health, indicated that estrogen was associated with an increased risk of dementia among women 65 and older, as well as with an increased risk of heart attack and stroke. "Those results raised a lot of doubts about whether women should be taking estrogen at all," Yaf...

Natural pine bark extract relieves muscle cramp and pain in athletes and diabetics

...enced while supplementing with Pycnogenol. Results indicated participants who took placebo experienced no decrease in pain. Cramps are a common problem for people of all ages, ranging to the extreme fit and healthy to people who suffer from health problems. Previously, magnesium was hailed as the natural app...

Scientists identify protein with a crucial role in cell death

...Alzheimer's disease. Previous research had already indicated that the link between PARL and Presenilin is negligible. It was understood that PARL is important to the cell's mitochondria, but the protein's particular function has remained unknown for a long time. 'Knock-out' mice To obtain insight into PARL...

New flood-tolerant rice offers relief for world's poorest farmers

...of submergence becomes tolerant. Further studies indicated that the Sub1A gene is likely successful inconferring submergence tolerance to rice because it affects the waythe plants respond to hormones, such as ethylene and giberellic acid,that are key to the plant's ability to survive even when inundatedwith ...

Coming soon: 3-D imaging that flies 'through' and 'around' cancer

... tools need additional development, said Quon, who indicated that the technique might be expanded to include other tracers and anatomic regions besides the chest and colon. "'Flying Through'" and 'Flying Around' a PET/CT Scan: Pilot Study and Development of 3-D Integrated 18F-FDG PET/CT for Virtual Bronchos...

Researchers unveil strategy for creating actively-programmed anti-cancer molecules

...ogrammed antibody approach. Moreover, the study indicated that this approach allows for the effective assembly of chemically programmed antibodies in vivo or in vitro, widening the possibilities for their therapeutic application. The compound could be created in vitro and delivered as a conventional single ...

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