Tag: "suggests" at biology news

Fruit-Eating Birds Discovered Crucial To Rainforest Survival

...y but also the processes that create it. Our work suggests that bydispersing seeds, these magnificent birds a...ersity. "The birds' surprisingly large range suggests that their own survivaldepends on preserving large expanses of rain forest intact," added Smi...

Alaska Scientists Say Salmon Declines Inevitable

...h being done at the University of Alaska Fairbanks suggests the changes in fish and shellfish abundance, called regime shifts, occur about every 20 years. It's been about that long since Alaska's salmon stocks rebounded from historic lows. Adkison says a regime shift might be under way, but it's still too ear...

Hopkins Study Shows Languishing Addictions Drug Really Works

... thanks to a new Johns Hopkins study. The study suggests better ways of taking LAAM (levomethadyl acetate h...e effects begin to appear at higher doses." So he suggests an approach that uses careful monitoring as the dose gets higher. Johnson would like to see more stu...

Newly Identified Molecular Mechanism Could Lead To New Approaches For Preventing Heart Attack, Stroke

...lets also contain PAR4. Thediscovery that they do suggests that, in human platelets, PAR1 and PAR4 also actas a dual-receptor system. And this suggestion opens up the possibility ofdesigning drugs tailored to this system, said Coughlin. "It may be necessary to block both PAR1 and PAR4 in human platelets to...

Two Modes Of Aging Discovered In Fruit Flies

...reached in Germany by phone at 49-381-2081-146 and suggests reporters alsoe-mail him their phone numbers at jrcarey@ucdavis.edu ); Hans-Georg Mueller,Statistics, (530) 752-1629, hgmueller@ucdavis.edu ; Patricia Bailey, NewsService, (530) 752-9843, pjbailey@ucdavis.edu ....

Team Of Max Planck Scientists Elucidates Structure Of A Protein Segment Involved In 'Von Recklinghausen Neurofibromatosis'

... structure of the contact area between GAP and Ras suggests that it might be attractive to search for small molecules that may act as surrogate GAPs in tumor cells where Ras is fatally mutated or its GTP-bound levels are increased for other reasons, e.g. due to a missing neurofibromin function. Th...

Women's Shame Stalls Abuse Disclosure To Physicians

...heJohns Hopkins Medical Services Corp. "Our study suggests that many of thebarriers to discussing abuse could be overcome by a physician's understanding ofthe emotions surrounding abuse and the unique treatment concerns of abusedwomen." Eighteen of the women (88 percent) sought medical attention dur...

University of Texas Southwestern Ophthalmologists Find Link Between Dry Eyes And Defective Lipid Structure

...used by insufficient tear production. New research suggests the condition alsomay be the result of tears evaporating too quickly, resulting in inadequatemoisture in the eye. This unusually rapid evaporation appears to be the resultof a flawed lipid structure, the layer of fatty oils responsible for coating th...

University Of Cincinnati Geologists Analyzes Evolutionary Impact Of Mass Extinctions

...ulldozers out-competed the ISOSS organisms. Miller suggests an alternativeexplanation. "Many deposit-feeders favor muddy, nutrient-rich sediments as a substrate tooccupy. Just suchsediments were provided during key intervals as a consequence of eroding areasuplifted duringmountain-building. Quite apart from ...

Three-Way Gene-Gene-Environmental Exposure Interaction Shown By NIEHS To Escalate Smoking-Related Bladder Cancer

...eriences higher risks of bladder cancer,this study suggests there may be small, genetically defined subgroups thatsuffer much higher risks than the general population," Dr. Taylor said. Thoughthis is a preliminary study, the authors point out that people known to be inthe higher risk subgroups could avoid sm...

Study Of Protein Reveals Two Different Prostate Cancers;One More Deadly Also Shows That Benign Prostate Hyperplasia Not A Precursor To Prostate Cancer

...ive. "Our study reinforces previous research that suggests that prostate cancer candevelop along two different pathways, one involving the loss of p27 and theother using processes that circumvent the growth-suppressive effects of p27,"said Dr. Carlos Cordon-Cardo, director of the Division of Molecular Pathol...

Study Shows First Significant Genetic Evidence For Schizophrenia Susceptibility

...dy, reported in this month's Nature Genetics, also suggests thatdifferent genes may be responsible for the dis...zophrenia, Pulver says. Asecond part of the study suggests different genes may come into play withdifferent types of the disorders. Using their descriptions o...

Gene Mutation Found For Common Form Of Mental Retardation

...m up theworks," Walsh says. This scenario suggests one approach to treating people with MRX would beto target kinases. "If the kinase is dead or partially functional, we might tryto boost the activity," says Walsh. Yet he cautions that they will need to knowmuch more about how PAK3 works before they ...

UV Skin Damage In A Different Light

... once thought to be"nature's sunscreen." The work suggests the science behind the sagging,leathery skin typical of long-term sun worshipers, and may also shed light onhow ultraviolet light causes skin cancer. "We studied a natural component of human skin exposed to ultraviolet light anduncovered a new chemi...

Whitehead Study Establishes Role Of DNA Methylation In The Stability Of DNA, Suggests Possible Role Of Undermethylation In Cancer

... 6-10times higher mutation rate than normal, which suggests that there may be acausal relationship between reduced methylation and genome instability. Dr.Jaenisch and colleagues found that the mutations in these cells take the form ofdeletions and seem to result from an increased rate of chromosomal recombi...

Tourists And Scientists Could Be Bringing Deadly Diseases To Antarctica's Wildlife

...re spreading thepathogens, circumstantial evidence suggests that they are. For instance, Kerryand his colleagues detected no IBDV antibodies in emperor and Ad'lie penguins ata remote colony in the Ross Sea rarely visited by people. The Hobart meeting proposed a package of precautionary measures.Ever...

Researchers Identify How AIDS Virus Kills Cells It Doesn't Infect

...ed this sudden turn of events, but the newresearch suggests that certain strains of the AIDS virus that appear...ss suicide of CD8cells. What's more, the new study suggests that HIV uses one of the immunesystem's own key players as an accomplice to promote this self-inflic...

Adaptation's Basis May Be A Mix Of Genetic Tweaks, Whoppers

...es responds to a changingenvironment. H. Allen Orr suggests that, faced with environmentalchange, organisms can evolve through a mix of many minute genetictweaks, a lesser number of moderate changes, and a few majormutations. The new idea runs counter to standard theory onevolutionary genetics, which holds th...

Discovery Of Possible New Weight Control Role For Leptin Announced By Yale University School Of Medicine Researchers

... by inducing thegrowth of new blood vessels, which suggests a new avenue for weight regulation. The mechanism involves the action of leptin, a naturally occurringhormone known for its hunger-blocking effect on the hypothalamus, a region inthe brain. According to a study published in the Sept. 11 iss...

Screening In Women Army Recruits Shows High Chlamydia Infection Rates

...nce of infection in teenage girls, the newresearch suggests Chlamydia is a major threat to the reproductive health ofyoung U.S. women. The current report from a multi-institutional team led by Hopkinsepidemiologists, is a wake-up call, says team leader Charlotte Gaydos, Dr. P.H.,because, unlike earli...

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