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Tag: "account" at biology news

Newly discovered killer cell fights cancer

...e surface of IKDCs. Housseau calculated that they account for about 10 percent of conventional dendritic cells in the spleen. IKDCs begin their lives behaving like an NK cell. After the cell encounters a pathogen, the cell switches roles from killer to dendriticlike messenger, and, according to the resear...

New vaccine for condition that kills 500,000 children a year

...f severe cases of viral diarrhea and vomiting that account for 2 million hospital visits and 500,000 pediatri...Teq targets five major strains of rotavirus, which account for 90 percent of rotavirus disease. The trial involved infants in the United States, Belgium, Costa...

Protein receptor cools passion of 'kiss and run' nerve cells

...of neurotransmitter can be controlled to take into account the sensitivity and roles played by post-synaptic receptors, new drugs for treating a range of neurological conditions might be developed. Alford thinks that controlling agent may turn out to be 5-HT. "When you release 5-HT onto the terminal (pre-...

Can dogs smell cancer?

...sted even after results were adjusted to take into account whether the lung cancer patients were currently smokers. Moreover, the study also confirmed that the trained dogs could even detect the early stages of lung cancer, as well as early breast cancer. The researchers concluded that breath analysis has t...

Not just the birds

...nated by grasses. Even when researchers took into account differences in island size and distances from shore, the study still showed significant differences between the fox-free and fox-infested islands. "By disconnecting the nutritional link from sea to land, the introduction of foxes to the Aleutians ha...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

...s. Microscopic plants, including the algaes, alone account for an impressive 733 different species, or more than one of every five species in the Gulf of Maine region. "This register is the first, essential step toward understanding the Gulf of Maine as a whole ecosystem," said Lewis Incze, chief scientist ...

Creation of antibiotic in test tube holds promise for better antibiotics

...rotease-resistant bonds at precise locations. They account for nisin's robust resistance capability. It was theorized that one enzyme makes all five rings despite their very different sizes, but how it did so was like the mystery of a magic show, van der Donk said. Nisin is one of numerous members of a fami...

Retinol for combating leukemia cells

...learly seen. These and others should be taken into account if a pharmaceutical to combat leukemias based on retinamide is to be marketed. Moreover, according to the researchers, future treatment will be patient-specific. As is well known, not all patients suffering from the same illness respond in the same...

Relationship of brain and skull more than just packaging

...es documented in craniosynostosis infants may also account for the changes observed in the evolution of the vertebrate skull. The researchers include Richtsmeier; Aldridge; Valerie B. DeLeon and Jayesh Panchal, The Johns Hopkins School of Medicine; Alex A. Kane, Johns Hopkins and Washington University Scho...

Research could lead to better drugs and whiter whites

...he reactions, so our results need to be taken into account when designing new drugs. "In the longer term, this research could also help us exploit enzymes more successfully and lead to better manufacturing processes in a number of commercial sectors. "In cleaning products, for instance, enzymes help speed ...

Access to antiretrovirals unlikely to reduce HIV infection rates

... they develop overt symptoms). They also took into account different ways that people might change their sexual behavior if they get treatment (which might make them feel physically better and more likely to be sexually active) and counseling (which will hopefully increase safe sex practices). They found t...

The urban evolution lab

...eimer's. This discovery will have to be taken into account in diagnostic tests and in the search for new medicines. ...

Researchers discover a new genetic cause of Alzheimer's disease

...eimer's. This discovery will have to be taken into account in diagnostic tests and in the search for new medicines. ...

Spring migration of pink-footed geese under threat

...uld be particularly useful if they could take into account adaptive behaviour. In the case of migratory birds, the implications of environmental change may be particularly difficult to predict because these animals use a succession of sites during their annual cycle." ...

Ernst Mayr's theory illustrated in genetic epidemiology studies

...e uncomfortable with Mayr's theory don't take into account that under his model, it's the interaction of the random that forces the natural selection that creates the evolutionary change," Templeton said. "Although the initial founder effect is somewhat random, the changes that emerge out of it are highly n...

Typhoid fever led to the fall of Athens

...ur understanding of this outbreak was based on the account by the fifth century B.C. Greek historian Thucydides, who himself was taken ill with the plague but recovered. Despite Thucydides' detailed description, researchers have not managed to agree on the identity of the plague and several diseases, includi...

Evidence for omega 3 fats less conclusive than we thought, say experts

...nths. Differences in study quality were taken into account to identify and minimise bias. Pooling the results showed no strong evidence that omega 3 fats have an effect on total mortality or combined cardiovascular events. The few studies at low risk of bias were more consistent, but they also showed no ef...

Boosting newborns' immune responses

...s we better understand the molecular pathways that account for newborns' susceptibility to infections, we can leverage them to enhance their immune defenses," Levy says. ...

'Uniquely human' component of language found in gregarious birds

..."finite-state" rule, the simplest sort, thought to account for all non-human communication. A finite-state grammar allows for sounds to be appended only at the beginning or end of a string. These songs were built up from a rattle-warble base by adding rattle-warble pairs at the end. The simplest song (ab)...

Genetic and environmental influences on alcohol consumption among rhesus monkeys

...xist among relatives. "Additive genetic effects account for 20 percent of the total variation, leaving 20 percent of the variance attributable to 'residual environmental effects' not accounted for by the experimental treatments and covariates identified in the study," said Lorenz. In earlier research, ...

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