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Tag: "equivalent" at biology news

New approach to BSE successful in lab

... a variant of the cattle disease BSE and the human equivalent Creutzfeld-Jakob disease. However, it will take years for the method to be introduced to medicine, the researchers warn. Their findings are published in the next issue of the Journal of Clinical Investigation (Vol. 116, No. 12, December 2006). Scra...

Osteoarthritis may be sign of faster 'biological ageing'

...over 50, and the amount of telomere shortening was equivalent to that accrued over 11 years in healthy people (178 base pairs). Telomere length was also significantly associated with the severity of osteoarthritis. The more severe the disease, the shorter was the telomere length. The authors suggest that bo...

ASU researchers test antibacterial effects of healing clays

...roject 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 Thierry Brunet de Courssou. He was asking to have someone take high resolution scanning electron micrographs of the clays," Williams ...

Chromosomal microarray analysis proves accurate

... much more efficient, making it possible to do the equivalent of a couple of thousand of more common testing methods in one test. "If you tried to do these individually, it would be cost prohibitive," said Beaudet. Currently, chromosomal microarray analysis costs from $950 to $1,500. In the current study...

New science of metagenomics 'will transform modern microbiology'

...y metagenomics are so enormous, a major commitment equivalent to that of the Human Genome Project is both justified and necessary," added committee co-chair James M. Tiedje, University Distinguished Professor of Microbiology and director of the Center for Microbial Ecology, Michigan State University, East Lansi...

Minuscule molecules pack a powerful punch

...ria, such as Salmonella. The team suggest that the equivalent human microRNA will play a major role in the human immune system. MicroRNAs are copied from DNA but do not contain code for protein. Rather, they are themselves active in controlling the activity of other genes, often by inducing destruction of pr...

Satellites shed light on global warming

...sintegrated ice shelf sections since 2002 has been equivalent to about 2 percent of total sea level rise, which,...asses of West Antarctica, which contain freshwater equivalent to several metres of sea-level rise," Rott added. Satellites have been extremely beneficial to s...

Reminding doctors which antibiotics to prescribe cuts C. difficile infection rates

...nfluence policy and practice, is intended to be an equivalent to the CONSORT standards and checklist for reporting of randomized controlled trials. Dr Stone says: "The quality of research in infection control must be robust enough to influence policy and practice in the fight against hospital acquired infect...

Stanford scientists make major breakthrough in regenerative medicine

...the Stanford group has accomplished the biological equivalent of turning a sow’s ear into a silk purse and back again." ...

Biodiesel won't drive down global warming

...etroleum diesel would emit only a third of the CO2 equivalent emissions as biodiesel. Petroleum diesel emits 85% of its greenhouse gases at the final stage, when burnt in the engine. By contrast, two-thirds of the emissions produced by rapeseed derived biodiesel (RME) occur during farming of the crop, when c...

No sex for 40 million years? No problem

...ction has caused divergence into distinct entities equivalent to the species found in sexual organisms." Previously, many scientists had thought that sexual reproduction was necessary for speciation because of the importance of interbreeding in explaining speciation in sexual organisms. Asexual creatures lik...

Researchers discover surprising drug that blocks malaria

...ed cell's signaling system and steal the molecular equivalent of its password to spring open the door to the cell. But researchers have found that a common blood pressure medication ?propranolol ?jams the signal to prevent the parasite from breaking in. Scientists had long been perplexed by malaria's abil...

Prenatal cocaine's lasting cellular effects

...ng a very short window of time during gestation -- equivalent to the late first trimester and early second trimester in humans -- caused specific alterations in brain circuits that use the neurotransmitter dopamine. Additionally, these cocaine-exposed offspring showed attention problems as well as insensitivity...

White blood cells in lung produce histamine seen in allergies

... "For example, a mouse without mast cells with the equivalent of a ruptured appendix will die of the resulting infection, while a mouse with mast cells can survive." When the infected mice without mast cells were given antihistamines, the level of histamine, and therefore the severity of the pneumonia, droppe...

New biofuels process promises to meet all US transportation needs

...r energy to grow crops than it does to produce the equivalent quantity of hydrogen possessing the same energy content by using the solar-power electrolysis method, he said. "So providing hydrogen derived from water through solar electrolysis reduces the amount of biomass needed," Agrawal said. "The average e...

Canadian study shows bilingualism has protective effect in delaying onset of dementia by four years

... of education and occupation. The MMSE scores were equivalent for the monolingual and bilingual groups at their initial visit to the clinic, indicating comparable levels of impairment. The age of onset of cognitive impairment was determined by the interviewing neurologist at the first clinic visit who asked pat...

Vasectomy may put men at risk for type of dementia

...ing the testes and the brain ?exist in what is the equivalent of a gated community in the body. Tiny tubes within the testes (in which sperm are produced) are protected by a physical barrier of Sertoli cells. The tight connections between these cells prevent blood-borne infections and poisonous molecules from e...

Mailman School of Public Health researchers report blood DNA can be early predictor of liver cancer

...Worldwide, the almost 500,000 new cases and nearly equivalent number of fatalities illustrates the lack of effective therapeutic alternatives for this disease. The Mailman School researchers and colleagues studied the blood of patients enrolled in a cancer screening program in Taiwan, who provided repeated...

Indicators for risk of heart disease are higher in passive smokers

...een in relation to second-hand smoke exposure were equivalent to about 30 per cent to 45 per cent of those seen for active smoking." The researchers also investigated elevated C-reactive protein, another inflammatory marker, and white blood cell count in participants with elevated cotinine levels. They found...

A new study of living cells could revolutionize the way we test drugs

...ve made a breakthrough by detecting the electrical equivalent of a living cell’s last gasp. The work takes them a step closer to both seeing the ‘heartbeat?of a living cell and a new way to test drugs. To stay alive, individual biological cells must transfer electrically charged particles, called ions across ...

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