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Tag: "combination" at biology news

Re-analysis of cigarettes confirms tobacco companies increased addictive nicotine 11 percent

...d sustain addiction influences their selection and combination of design parameters." Cigarette smoking causes an estimated 438,000 premature deaths (or about 1 of every 5 deaths) annually in the U.S., and approximately 900,000 persons become addicted to smoking each year. In conclusion, according to the H...

Knocking out survival protein could aid leukemia treatment

... an effective therapy. But such a drug used in combination with several existing drugs might also offer an ef... cells with both siRNA and the drug rituximab, the combination killed significantly more leukemia cells than the drug alone. Overall, says Byrd, "Our data indi...

Statin plus cancer drug deliver combo punch to brain cancer cells

...esearchers caution that the cyclopamine-lovastatin combination has yet to be tested in animals, much less people,...ancer, Bcl-2. Eberhart and his team believed that combination of a hedgehog blockade and a pro-apoptosis drug like lovastatin would kill more cancer cells. "Our...

Adding radiation decreases breast cancer recurrence

...ast cancer treatment. Breast conserving surgery in combination with radiotherapy and mastectomy provide women with two good options for their initial treatment. Augmenting surgery with hormone modulating drugs, such as tamoxifen, further improves survival and reduces recurrence. Women over 65 are at the high...

Scientists identify specific enzymes that make meningitis hard to fight

...ight. "We have also discovered that this novel combination of enzymes is present in a wide variety of bacteria and that it has a direct impact on the infectivity of human pathogens." Dr Geoff Baldwin from Imperial's Division of Molecular Biosciences added: "The wide importance of DNA repair to the viabili...

Army research mission focused on autism

..."What makes treating autism difficult is that each combination to unlock each person affected is so unique." As a result of advocacy efforts, the U.S. Congress provided $7.5 million in appropriations directed to the Department of Defense to initiate the Autism Spectrum Disorder Research Program in 2007. The U...

Plants do not emit methane

...e change. The consortium brings together a unique combination of expertise and facilities enabling the design and execution of a novel experiment. Plants were grown in a facility containing atmospheric carbon dioxide almost exclusively with a heavy form of carbon (13C). This makes the carbon released from the p...

Turning a cellular sentinel into a cancer killer

...py where you can get resistance—is to come up with combination treatments that take out enough of the cancer cells early on that there aren't enough variants left to get around the p53 pathway." Jacks added that "the main point is that—although there are differences between these mouse models and human cancers...

Non-GMO solution to seafood allergies

...ina. The team revealed that treating prawns with a combination of heat and irradiation significantly reduced the level of reactive proteins called allergens. They took blood from patients with shrimp allergies, added samples of treated and untreated prawn, and measured how antibodies in the blood reacted. They f...

Endangered shortnose sturgeon saved in Hudson River

...d, recovery of the shortnose sturgeon suggests the combination of species and habitat protection with patience can successfully recover threatened species, even next to one of the busiest cities in the world. ...

White blood cells of cancer-resistant mice overwhelm natural defenses of cancer cells

...contact with the cancer cell before unleashing its combination of killer molecules. White blood cells from the cancer-resistant mice apparently have the same ability to attack a range of tumors when transplanted to ordinary mice. Cui and Willingham also want to explore how this one process can detect a wide...

Mechanical 'artificial hearts' can remove need for heart transplant by returning heart to normal

...yal Brompton and Harefield NHS Trust gave the full combination therapy to 15 severely ill patients. Of these 15, ...s is due to the additive effects of the particular combination therapy used. The improvement observed was far greater than what has been reported to date for any o...

St. Jude announces breakthrough in eye cancer treatment

...e significantly more than the most effective known combination of standard chemotherapy drugs. "The findings suggest that this treatment not only could offer children with retinoblastoma more effective and less-toxic treatment," Dyer said. "It could also increase the chance that their vision can be preserved b...

Gene key to taste bud development identified

...her gene, derived from jellyfish, and inserted the combination into the animals' chromosomes. She selected the added gene for its capacity to produce a special protein, called enhanced green fluorescent protein, that glows green when exposed to ultraviolet light. "When we shine light on tissue from these anima...

Early-stage immune system control of HIV may depend on inherited factors

...y HIV infection," says Altfeld. "In addition, the combination of Class I molecules that an individual expresses, something that is genetically determined, seems to have a significant impact on the specificity and strength of that response. "Identifying the HIV epitopes [viral fragments] that are particularly...

Neuron cell stickiness may hold key to evolution of the human brain

...Rubin. "We have long suspected that it would be a combination of DNA sequences coding for genes and DNA sequences that control when genes are switched on or off. In this study by comparing the entire genome of many organisms to that of humans we were able to identify a series of human-specific sequence changes...

Record ozone loss during 2006 over South Pole

...tain chlorine. As the polar spring arrives, the combination of returning sunlight and the presence of polar stratospheric clouds leads to splitting of chlorine compounds into highly ozone-reactive radicals that break ozone down into individual oxygen molecules. A single molecule of chlorine has the potential ...

Einstein researchers demonstrate a novel approach to treating AIDS

...ed cells in a patient­which would likely require a combination of therapies--then we could start to think about curing HIV-infected patients." Dr. Goldstein, also a senior author of the study, notes that radioimmunotherapy might be particularly useful for people newly exposed to HIV, such as healthcare worker...

Researchers seek to design first treatment for neuroAIDS

...dementia (HAD) or neuroAIDs. The current, standard combination of treatments has extended the lives of most U.S. ... suffered rapid, severe neurological damage before combination therapy, they now gradually lose attention span, memory, speaking ability and decision-making skills...

Weighty viruses

...of error of ±1%. The masses of the viruses can, in combination with other analytical processes, be used to infer how many building blocks are used to make up the shell of the virus or how many copies of the genetic material it contains. These highly precise measurements were made possible by the special struc...

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