negative
Navigation Links
negative at biology news
Newly discovered virus linked to childhood lung disorders and Kawasaki disease
...95 symptomatic children under age 5 who had tested negative forother viral infections. They found 79 (9 percent) who were positive forthe new virus, nine of whom were subsequently found to have evidence ofrecent infection with another virus as well. Of the remaining 67patients for whom clinical data were avai...Marburg virus disease in Angola - update
...arburg virus infection and laboratory results were negative in tests performed by the Bernard-Nocht Institute for Tropical Medicine, Hamburg, Germany, a WHO Reference Laboratory. ...Researchers reveal the infectious impact of salmon farms on wild salmon
...tions of wild salmon at all. "Parasites are a key negative side effect of fish farms on the local fish stocks," says Andrew Dobson, an epidemiologist from Princeton University who researches infectious diseases in wildlife. "We're seeing similar effects in Scotland, Norway, and Ireland; in each area parasite...HIV Infection Still On The Rise
...for a vaccine against HIV has so far produced only negative results, while microbicides have proved disappointing. Although the ABC message (abstinence, be faithful, use a condom) is popular with the American government, its application in other parts of the world may not have the impact required. In the fac...NYC's First Rapid HIV Drug-resistant AIDS Case Prompts Call to Step Up HIV Prevention
... officials, the man -- who had previously had five negative HIV tests done by his private physician between September 2000 and May 2003 -- had unprotected sex with numerous male partners in mid-October, reported feeling unwell in late October and November, and subsequently had positive ELISA and Western Blot ...Gene vaccine for Alzheimer's disease shows promising results
...ation had shown someslowing in the plaque buildup, negative side effects also occurred in ahandful of patients. Some had autoimmune responses that causedencephalitis.The key in the UT Southwestern study was finding another way tovaccinate patients without stimulating the body's own immune cytotoxicT cells, sa...Scientists identify molecular events that drive cell senescence
...ation had shown someslowing in the plaque buildup, negative side effects also occurred in ahandful of patients. Some had autoimmune responses that causedencephalitis.The key in the UT Southwestern study was finding another way tovaccinate patients without stimulating the body's own immune cytotoxicT cells, sa...FDA Warns Consumers Not to Use Home-Use Diagnostic Kits Marketed by Globus Media
...HIV, or, worse, someone infected with HIV may test negative and not seek medical treatment or spread the virus to others. The tests were sold through websites and distributed throughout the U.S., usually by overnight delivery services. These have been made available for sale on several websites, including ww...South America's vast pantanal wetland may become next everglades, UNU experts warn
...th, pose a new threat to the Pantanal due to their negative environmental consequences," the analysis says. Roads and electricity lines have been constructed, while large agri-industrial projects have emerged on the Pantanal's periphery ?large-scale cattle ranching and plantations of soybean and sugarcane ?a...Antibiotic might fight HIV-induced neurological problems
... antibiotic minocycline might help alleviate HIV's negative effects on the brain and central nervous system, problems that can develop even though antiretroviral therapy controls the virus elsewhere in the body. Five monkeys infected with simian immunodeficiency virus (SIV), a very close relative of HIV, and...US life expectancy about to decline, researchers say
...trivial to some, but in fact it's greater than the negative effect of all accidental mortality, such as car accidents, suicides and homicides combined," said Olshansky, who is professor of epidemiology in the UIC School of Public Health. The researchers also predict that the rapid rise in obesity among child...A new study examines how shared pathogens affect host populations
...n emergence and therefore has been considered as a negative factor for humans, wildlife, and species of agricultural importance. Many pathogens like malaria, Lyme disease or West Nile encephalitis that infect multiple hosts are commonly transmitted by vectors, and their transmission rate is often thought to d...Light therapy may combat fungal infections, new evidence suggests
...onserved light-sensing proteins. "Fungi have many negative implications for human life as they lead to human disease, as well as plant disease and mold," said Idnurm, a post-doctoral fellow at Duke. "However, fungi also play important beneficial roles, for example, as a source of food and pharmaceuticals. "...Scientists identify molecule that regulates well-known tumor suppressor
...involved in the generation of human tumors through negative regulation of the well-known tumor suppressor, PTEN. The research, published in the March issue of Cancer Cell, has important implications for determining the prognosis of some human cancers, and may prove to be a suitable target for cancer therapy. ...Microbial fuel cell: High yield hydrogen source and wastewater cleaner
...f a programmable power supply to the anode and the negative pole to the cathode. The researchers call their hydrogen-producing MFC a BioElectrochemically-Assisted Microbial Reactor or BEAMR. The BEAMR not only produces hydrogen but simultaneously cleans the wastewater used as its feedstock. It uses about one...Buying Time Through Hibernation on Demand
... function and metabolic activity with no long-term negative effects. If Roth and colleagues are able to replicate these findings in larger animal models, they foresee the first clinical use of this technology in humans could involve treating people suffering from severe fevers of unknown origin. Currently, w...U-M team recovers ancient whale in Egyptian desert
... function and metabolic activity with no long-term negative effects. If Roth and colleagues are able to replicate these findings in larger animal models, they foresee the first clinical use of this technology in humans could involve treating people suffering from severe fevers of unknown origin. Currently, w...Discovery may lead to better Candidiasis drug
...ting it from regulating its ions, the positive and negative charged molecules that move into, and out of, cells. Ions regulate electrostatic pressure between the cells' internal and external environments, which, in turn, regulates their volume and water content. Cells that lose their water content without bei...Defenseless plants arm themselves with metals
...f salicylic acid production, a phenomenon known as negative feedback. In this way, plants can turn the pathoge...accumulators like Thlaspi, however, don't show any negative effects from their constant exposure to high levels of salicylic acid. "These plants have tons of s...NSAID drug protects against intestinal tumors in mice, despite poor diet and gene losses
...mice that had only one APC gene to p27 positive or negative mice, producing variants with no p27 genes or one or two. The APC gene is responsible for an inherited colorectal cancer condition known as FAP (familial adenomatous polyposis), in which patients develop hundreds of potentially precancerous polyps. ...Elephant seal pups suffer from ocean warming
Ocean warming has a negative impact on the condition of elephant seals, reveals a study published in the Open Access journal BMC Biology. High ocean temperatures observed from 1975 to the late 1990s are correlated with a 28% decrease in the weight of elephant seal pups. Elephant...Report that delayed motherhood decreases life expectancy of mouse offspring
...children, are well known. However, other potential negative effects on offspring from delayed motherhood have been only anecdotal. In what the editors of Biology of Reproduction feel will be a controversial topic of discussion, a team of reproductive biologists headed by Juan Tarín at the Department of Pedia...Successful Test Of Single Molecule Switch Opens The Door To Biomolecular Electronics
...has created the first reproducible single molecule negative differential resistor ?and in the process has deve...icists have been trying to detect for a long time: negative differential resistance in a single molecule attached to electrodes. The specifically designed mole...Mouse with designer liver has enhanced glucose tolerance, insulin response
...and Akt proteins. "We propose that Gab1 acts as a negative regulator on insulin signal strength in the liver," said Dr. Feng. "In this work, by making a new liver-specific gene knockout mouse model, we found a novel balancing mechanism for control of liver insulin signaling. Our observation might be instrume......ciences and co-author of the study. "That can have negative effects. It's a double-whammy: the virus infected and possibly killed off some of the population, but also caused genetic errors in survivors. Those errors would have later eliminated more of the population." The virus had invaded the genome in the ...Purdue researchers use enzyme to clip 'DNA wires'
...ue. DNA, or deoxyribonucleic acid, has an overall negative charge, so it might be used in a process called self-assembly to create electronic devices. When placed in a solution with magnetic particles that have a positive charge, the particles are automatically attracted to the DNA strands, which act as tiny...UCLA study assesses cost-effectiveness of Hepatitis B drugs
...d life-year gained for patients with the e-antigen negative hepatitis B and would not be considered cost-effec...titis B -- either e- antigen positive or e-antigen negative -- which require different treatment approaches. Hepatitis B is the most common serious liver infec...Engineers improve plastic's potential for use in implants by linking it to biological material
...tach well to the plastic. Aspartic acid carries a negative charge, which in T59 appeared to be drawn to the positively charged surface of the polypyrrole the way magnets of opposite charges cling together. Yet other peptides containing aspartic acid didn't attach to polypyrrole, leading the researchers to sp...Major new UNC-based drinking water study suggests pregnancy fears may be overstated
...dividual and groups of chemicals that might have a negative effect on pregnancy," he said. "I don't want to do...serve to lessen concerns." Because of the overall negative results, he and his colleagues do not plan to make policy recommendations to water managers and muni...Cancer related gene p53 not regulated as indicated by previous tissue culture research
...self might not be so important as modifications of negative regulators and co-activators." Many chemotherapeu...h the killing power of p53 by interfering with its negative regulators. Our cells are vulnerable to DNA breaks caused by UV light, ionizing radiation, toxic ch...Ocean climate predicts elk population in Canadian Rockies
...rchers are able to determine positive, average and negative NPO values. A positive NPO translates into a milder climate in most of western North America, but it means more severe weather in the mountain regions, where climate is more complex. Hebblewhite analyzed the elk population in Banff National Park fro...Depression gene may weaken mood-regulating circuit
... depression* by weakening a circuit for processing negative emotion. People with the depression-linked gene variant showed less gray matter and weaker connections in the mood-regulating circuit. How well the circuit was connected accounted for nearly 30 percent of their anxious temperament, researchers at the...It's electric: Cows show promise as powerplants
...ial material that allowed protons to move from the negative (anode) chamber into the positive (cathode) chamber. This movement of protons, along with the movement of electrons across the resistor and wire that connects the two electrodes, creates electrical current. The anode chamber was filled with rumen fl...Environmental chemical cocktail may sabotage sperm
...en more potent, these results could have important negative implications for human fertility for two reasons. ... fertility. Other scientists have investigated the negative impact of environmental chemicals on testis function, resulting in reduced numbers of sperm being pr...Men Estimate Men's Risks Of Common Disorders Higher Than Women Do, And Vice Versa
...ese type of questions is neither an optimistic nor negative bias for one's own sex, but rather a bias towards thinking any health experience, whether positive or negative, is more probable for one's own sex than the opposite sex thinks." ...OHSU research shows vitamin C counteracts some negative impacts of smoking on unborn babies
...of vitamin C may have potential to counteract some negative impacts of smoking in unborn babies. The research ...tists note that vitamin C did not counteract other negative health impacts of smoking during pregnancy such as abnormal brain development and decreased body wei...Endocannabinoids ?the brain's cannabis ?demonstrate novel modes of action to stress
...retion from the pituitary gland, providing a rapid negative feedback mechanism for the regulation of neuroendocrine function during stress." Japanese team finds inhibition of excitatory and inhibitory synaptic transmission In an in vitro study, a multi-center Japanese team led by Atsushi Soya focused on the......infection had croup, compared with 6% of HCoV-NL63 negative patients. Previous studies have reported trends in croup, such as the relative susceptibility of boys to the disease, its peak occurrence in the second year of life and its predominance in late autumn and earlier winter, that are matched by patterns ...Gene therapy advance treats hemophilia in mouse models
...ly in liver cells, thus reducing the likelihood of negative side effects. The laboratory findings have signi...ic," McCray said. "This modification helps prevent negative side effects. For example, if the gene were expressed in immune cells instead of liver cells, it cou...Why were the HIV prevention trials in commercial sex workers abandoned?
...t clinical trials of tenofovir as PREP and brought negative attention to tenofovir, somewhat similar to that visited on thalidomide more than four decades ago," say two researchers in an essay in the open access global health journal PLoS Medicine. The dramatic protest at the XV International AIDS Conference...Compound from Chinese medicine shows promise in head and neck cancer
... been tested as a cancer treatment. Wang found the negative isomer of gossypol binds at a site to block the ac...box. University of Michigan holds a patent on the negative isomer, (-)-gossypol, and has licensed the technology to Ascenta Therapeutics of San Diego, Calif., ...Penguin chicks exposed to human visitors experience spike in stress hormone
...tural History. There is no evidence of short-term negative effects, such as different growth rates or weight differences at fledging, caused by distinct differences in corticosterone levels between newly hatched chicks in tourist and non-tourist areas of the reserve, Walker said. But it is unclear what later...New Lab Research May Help Those Deafened By Immune System Attack
...to improve after steroid treatment than those with negative IF results. The two tests combined were even more...oid, compared with 10 percent of those who had two negative results. Interestingly, Carey notes, nearly all of the patients who had sudden hearing loss over ho...Treatments have same target, different responses for lung cancer patients with genetic mutation
...ns, issues such as which drug has more toxicity or negative side effects are still unanswered. However, they did examine the outcomes of four patients with EGFR mutations in their tumors who had been treated with gefitinib and then cetuximab, or vice versa. They found that all patients displayed partial res...Bird samples from Mongolia confirmed as H5N1 avian flu
...iving at the same site and also a nearby lake were negative for the virus. Samples collected from other live ...d twenty-five black-headed gulls, were found to be negative for the virus. Whereas prior outbreaks in wild birds have happened either in close proximity ...... Charges on the salt-tolerant enzyme are uniformly negative (though not as intensely negative as those in halophilic proteins), while the surfaces of carbonic anhydrases that don't tolerate salt...Scientists uncover new clues about brain function in human behavior
...has been associated with empathy and regulation of negative emotion; and orbitofrontal region is involved in assigning emotional values to a situation. The researchers found a delicate network by which these three regions modulate amygdala activity. In Williams Syndrome, this fragile system was significantly...Computer modeling reveals hidden conversations within cells
... When exposed to the other chemical, they initiate negative feedback, which shuts them down rapidly. "The prevailing view has been that proteins are either on or off like a light switch, but that didn't explain how activating the same proteins with different chemicals could have opposing effects on cells," e...Researchers develop gene therapy to reverse pulmonary arterial hypertension
...utant via a virus--known in science as a "dominant negative construct"--effectively inhibiting endogenous Survivin. The therapy reversed PAH in rats and improved their heart function and their survival, thus holding out some promising avenues of treatment for human PAH. The team members believe that as in can...Scientists and engineers apply nature's design to human problems
...ctive and successful. "Invasive species can have a negative connotation, but we're not talking about disrupting the community," Weissburg explained. "We're talking about augmenting it and adding to its functionality and activity. We used the analogy of a new species trying to fit into a community as a way to ...DNA size a crucial factor in genetic mutations, study finds
...can cause genetic mutations. While we tend to heap negative connotations onto the term, some mutations create new traits that actually benefit the organism or yield no effect. These small-scale changes, collectively called genetic drift, play an important role in evolution, as does natural selection. To make...Smoking damages key regulatory enzyme in the lung
...ins the leading cause of preventable death and has negative health impacts on people at all stages of life, said Fowler, and has been in the headlines recently with the death of ABC "World News Tonight" anchorman Peter Jennings. Cigarette smoking accounts for 440,000 deaths each year in the United States, or ...Chernobyl: The true scale of the accident
... By and large, however, we have not found profound negative health impacts to the rest of the population in su...f accurate information. These problems manifest as negative self-assessments of health, belief in a shortened life expectancy, lack of initiative, and dependenc...Cornell finds natural selection in humans
...t of the cell. These mutations are subject to weak negative selection, according to the study. In general, negative selection eliminates from the population very harmful changes to proteins that kill or stop reproduc...Research Permits First-Ever Visualization of Psychological Stress in the Human Brain
...est a strong link between psychological stress and negative emotions. On the other hand, the prefrontal cortex is also associated with the ability to perform executive functions -- such as working memory and goal-oriented behavior -- that permit humans to adapt to environmental challenges and threats. "The me...Oil spills and climate change double the mortality rate of British seabirds
...ure and rainfall) for the past 30 years, has had a negative effect on the guillemot population of Skomer Island. Professor Tim Birkhead of the University of Sheffield said: "Prior to our investigation of the guillemot population of Skomer Island, the impact of oil pollution on seabird mortality rates at a p...New clues to the dark side of a key anti-tumor guardian
...rmation, but at the same time it has a significant negative effect: a shortening of lifespan, accompanied by h...or-preventing activity while avoiding its unwanted negative effects on lifespan. ...Cattle grazing may help rather than hurt endangered species
...ervationists may find that grazing is not always a negative factor, and it presents real opportunities to adapt to climate variability and climate change. ...Max Planck researchers make a breakthrough in plant stem cell research
...nt task in hormonal regulation: they are part of a negative feedback loop, by which the growth-inducing plant ...CHEL supports the cytokinin effect by stopping its negative feedback." That is also the reason for earlier observations, that Arabidopsis samples with defective......d. He added that the lack of pinyon nuts will have negative effects on wildlife and on people who harvest the nuts for food and for sale. Rich said, "The fate of the pinyon-juniper forest depends on what happens next, especially in terms of weather. If it's wetter, the trees may come back. If not we'll proba...Other ContentsdilationdilationdilationdilationdilationdilateddilateddilateddiplopiadiphtheriadiphtheriadisciplinedisciplinedisciplinedisciplinedisciplinedisciplinediscoiddisinfectantdisinfectantOther TagsRepRepRepRepRepRepRepRepThank
(Date:8/6/2008)...s from Massachusetts General Hospital (MGH) has us...logy techniques to identify a connection between b... preference and a gene variant that appears to inf... Archives of General Psychiatry describes how var... function are associated with the activity of a ke...
(Date:8/6/2008)...ndividuals with synesthesia perceive the world in ...ir senses are ,cross-activated, some synesthetes ...days of the week as possessing personalities, even...searchers at the ,California Institute of Technol...ch individuals hear sounds, such as tapping, ,bee...
(Date:8/6/2008)...ter researchers are investigating exactly how chem...reduce side effects and test the effectiveness of ...ascoigne at the University of Manchester,s Faculty...oach to studying anti-mitotic drugs, which are use...UK. , This class of drugs, which includes the ag...
(Date:8/6/2008)...ording to new research, old ideas about water beha...o has been found in comets, on Mars and in molecul...ay this common fluid is not as well understood as ...t within our bodies," said Martin Gruebele, a Will...he University of Illinois. "Water in our bodies ha...
Breaking Biology News(10 mins):Study finds connections between genetics, brain activity and preference 2Study finds connections between genetics, brain activity and preference 3Caltech neurobiologists discover individuals who 'hear' movement 2Caltech neurobiologists discover individuals who 'hear' movement 3How chemo kills tumors: research to reduce side effects 2How chemo kills tumors: research to reduce side effects 3Water is 'designer fluid' that helps proteins change shape, scientists say 2With annual deaths from malaria on the rise 3A Scientists ask where is all the money going 3F 16602 1With annual deaths from malaria on the rise 3A Scientists ask where is all the money going 3F 16602 2When a Mind Begins to Disappear 3A A Young Familys Journey to the Dark Side 16597 1When a Mind Begins to Disappear 3A A Young Familys Journey to the Dark Side 16597 2When a Mind Begins to Disappear 3A A Young Familys Journey to the Dark Side 16597 3When a Mind Begins to Disappear 3A A Young Familys Journey to the Dark Side 16597 4When a Mind Begins to Disappear 3A A Young Familys Journey to the Dark Side 16597 5Personality study shows risk of first depression episode late in life 16592 1Personality study shows risk of first depression episode late in life 16592 2PreMD Provides Update on FDA Review 16590 1PreMD Provides Update on FDA Review 16590 2PreMD Provides Update on FDA Review 16590 3(Date:8/7/2008)...ld ID millions who don,t know they have disease ,...A widely used test to monitor blood sugar levels i...s of people with undetected diabetes, according to...ts. , The hemoglobin A1c test (HbA1c) shows ho...o in the previous 120 days, the average life span ...
(Date:8/7/2008)...SNewswire/ -- Vapotherm, the,global leader in High...,clearance from the Food and Drug Administration (...umidification system to integrate gas,blending, fl...device for,the optimal conditioning of nasal cannu...currently used in neonatal, pediatric and,adult ap...
(Date:8/7/2008)...High Quality Nursing Home Care;,Helps Preserve, St... Mo., Aug. 7 /PRNewswire-USNewswire/ -- Citing the...itical frontline-caregiver,infrastructure, the Coa...,Senator Pat Roberts for helping to lead a success...h Administration from moving forward with a new,re...
(Date:8/7/2008)...women,s kids from previous relationship , ...men ages 18 to 44 are more than twice as likely as...ld, a new federal report says. , The report use...wth, which showed that more than 1.2 million men a...easons why more men adopt than women aren,t outlin...
Breaking Medicine News(10 mins):Health News:Blood Sugar Test May Also Aid Diabetes Detection 2Health News:Vapotherm(R) Precision Flow(TM) Receives FDA 510(k) Clearance 2Health News:Senator Pat Roberts Praised for Leading Successful Effort to Derail $6.2 Million Kansas Medicare Cuts 2CorrespondenceInaccessibleShourieDharamCommitmentsRepZurishFullestReaffirmsParametresSluggishlyUnfriendlyThankQatar
Other Tagsremoving 2removing 3removing 4removing 5removing 6removing 7removing 8removing 9removing 10principles 2principles 3principles 4guiding 2intelligence 2measured 2measured 3measured 4measured 5measured 6measured 7measured 8measured 9measured 10| Copyright © 2003-2008 Bio-Medicine. All rights reserved. ABOUT | CONTACT US | DISCLAIMER | PRIVACY POLICY | TERMS AND CONDITIONS |  |