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Tag: "rates" at biology news

Does father know best?

...he data geographically, breaking down nonpaternity rates in different countries according to high and low paternity confidence. Among those for who paternity confidence was relatively high, actual nonpaternity is highest in Mexico and lowest among the Kohanim lineages of Sephardic Jews. ...

St. Jude projects 90 percent cure rate for ALL

...ining challenges." The dramatic increase in cure rates for children is especially significant in the case... African-American children have the same high cure rates as white children when given access to the same effective treatments. "This reflects the ability of...

Scientists re-engineer a well-known antibiotic to counter drug resistance

...f hospital stays, but they raise patient mortality rates as well. Our successful synthesis of a novel vancomycin analogue with a molecular structure that restores much of the drug's binding ability could potentially lead to the development of a new generation of antibiotics that could prove far more effect...

Plant-derived vaccines safeguard against deadly plague

...tion by having problems with high adverse reaction rates and side effects. The research team included Santi, Hugh Mason and Charles Arntzen, all members of the institute's Center for Infectious Disease and Vaccinology. They worked out a new plant-based system to rapidly and stably produce high levels of ...

New test to detect rare proteins in blood

...ive for Her2/neu using FISH or IHC have responsive rates of about 35 percent to the cancer drug Herceptin. Monitoring Her2/neu status from the blood with a powerful technology such as FACTT represents an alternative approach compared to IHC or FISH, say the researchers. Pre-treatment Her2/neu levels corre...

Nearly half of people who need cholesterol treatment don't get it

...ispanics also have lower health insurance coverage rates and poorer access to care. "Our study showed that more research and quality improvement programs are needed to optimize management of cholesterol disorders," Goff said. ...

Study: Paramedics save more lives when they don't follow the rules

Survival rates following the most common form of cardiac arrest i...of standardized international guidelines, survival rates have remained more or less unchanged over the last couple of decades. Survival rates are better only...

New licensing agreement to maximize AIDS drug development

... of Cellegy Pharmaceuticals.Currently, the highest rates of infection in women are in sub-Saharan Africa and rates are increasing in women in South and Southeast Asia. CONRAD has been involved in the research of ne...

Loosen leash on cancer protein 'watchdog,' researchers say

...ces between them and normal mice. And their cancer rates were dramatically lower than expected, which turned out to be the more significant finding of the study." Mendrysa said the results were an enlightening fundamental discovery about suppressing hereditary intestinal cancers. But she also said the wor...

Congenital rubella syndrome nearly eradicated in the US

...e statement. Maintaining high rubella immunization rates is crucial to the continued success of these efforts. The statement concludes: "Effective strategies, such as continued universal childhood and adolescent immunization, must be secured to extend this success worldwide." ...

Engineered heart tissue offers insights into irregular heartbeats, defibrillator failure

...ons suggested that pacing the engineered tissue at rates slightly below the rate of tachycardia may still slow down the accelerated rhythm. The results in general demonstrated the promising utility of engineered tissue in the laboratory for studying the complex electrophysiological properties of the hear...

US woman gives birth to baby from world's first frozen donor egg bank

... PhD, Scientific Director for CEI. The pregnancy rates with donor eggs are beginning to show success rates equivalent to pregnancy rates using eggs before freezing. Donor eggs which have not been frozen are ...

Genes affecting blood pressure change as children become adults

... disparities such as blacks tending to have higher rates of hypertension that start at a younger age, he says. ...

Suicide risk does not increase when adults start using antidepressants, study finds

...pressants were associated with a faster decline in rates of suicidal behavior than older drugs. Adolescents in the study had more suicide attempts than adults. The researchers found that the rate for the first six months of antidepressant treatment was 314 attempts per 100,000 in teens and 78 attempts per...

Inflammation and drugs to control this activity studied in a variety of tumors sites

...fen to treat conditions like arthritis, have lower rates of colorectal polyps, colorectal cancer, breast cancer and many other cancers. NSAIDs exert anti-inflammatory effects by blocking COX, or cyclooxygenase enzymes, which are produced by the body when there is inflammation and are also produced by preca...

Northern birds are fatter!

... fattening rates. Such differences in fattening rates cannot simply be explained by differences in the availability of food. "Our current thinking is that the difference in fattening could be caused by differences in behaviour (birds simply feed more intensively in the north) or changes in physiology th...

Taking evolution's temperature: Researchers pinpoint the energy it takes to make a species

...lism, the researchers made specific predictions on rates of speciation at the global scale. Then, using fossils and genetic data, they looked at rates of DNA evolution and speciation during a 30-million-year period in foraminifera plankton, a single-c...

Ocean acidification threatens cold-water coral ecosystems

...events throughout the world, and the calcification rates of corals exposed to more acidic conditions in laboratory experiments have shown worrisome declines," says Guinotte. "But now we suspect that this increase in CO2 will have a detrimental effect on cold-water corals as well. Cold-water reefs are at ...

Mosquito spray increases toxicity of pyrethroids in creek, study finds

...researchers compared the reproduction and survival rates of a species of water flea, Ceriodaphnia dubia. No...samples. Researchers also looked at the survival rates of a tiny, shrimp-like amphipod called Hyalella azteca, an indicator species for sediment toxicity. ...

Bacteria beat the heat

...scientists timed this reaction to see how reaction rates changed as things heated up. A general rule for ...e, and the scientist's expectations, both reaction rates peaked at a certain point, and remained steady thereafter. For each enzyme, the peak occurred in the...

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