National study shows dog and cat allergens are universally present in U.S. homes
...s, the contribution from each home was weighted as necessary to ensure that the statistics were representative of the U.S. population. Until now, exposure to these allergens had not previously been studied in residential environments on a national scale....UCSD team determines cellular stress within body is critical
...ion under conditions of osmotic stress and is also necessary for the body's immune response to invading pathogens. Osmotic stress occurs when the concentration of molecules in solution outside of the cell is different than that inside the cell. When this happens, water flows either into or out of the cell by ...Macrophages, not stem cells, correct liver disease by fusion
... effects. Here we show this harsh treatment is not necessary for macrophages to turn into useful liver cells." Willenbring said transplantation of macrophages or their immediate, short-lived progenitors is much more targeted toward treatment of damaged liver tissue than using whole stem cells from which they'r...... for the proper functioning of immune cells and is necessary for the innate immune response; it is required for neuronal function and has been implicated in neurological diseases and mental retardation. "Understanding the basic mechanism of how Rac activation is regulated," says Bokoch, "is a key to understan...New $9 million NSF grant to fund creation of center at LSU
...uccessful because we have developed the technology necessary to make the devices that the new center is focused on," said Josef Hormes, director of CAMD. The center will provide laboratory space for researchers and students from the various institutions involved, as well as lab space for visiting scientists ...Infusion of two peptides acts to accelerate appetite satisfaction
... researchers suggest that much more information is necessary to understand the basic physiological mechanisms that control food intake and satiety....Herpes tool allows researchers to customize Alzheimer's vaccine
...f allows them to recruit just the immune resources necessary for a well-coordinated attack to protect the body, minimizing the side effects that would be caused by unnecessary and potentially lethal "personnel" from the immune system's array of forces. The team is conducting several more studies designed to c...Endometriosis: Could angiostatic therapy be the new treatment of the future?
...apeutic approach." Dr Becker said that it might be necessary to study endostatin in animals that are better models for humans than mice. However, because endostatin has completed early phase 1 trials for the treatment of cancer, there are data available on its toxicity in humans. "I believe it should be poss...Mutant mice lead to memory insights
...le the machinery of gene transcription known to be necessary for formation of long-term memories. And critically, CBP acts as an enzyme that transfers acetyl groups onto the histone proteins that are part of the chromatin enfolding DNA in the chromosomes. Such acetylation is a central process in remodeling the...Study sheds new light on genetic risk for Parkinson's disease
...cal or pathologic criteria for Parkinson's and the necessary APOE genotype information. Combined, the selected studies had more than 2,000 patients and nearly 8,000 people without Parkinson's as a control group for comparison. "We found that APOE-2 conveyed a slight but statistically significant risk...Myths surrounding Cuyahoga River fire 35 years ago
...e symbolism of the earth's need for repair and the necessary federal regulation to do so, said Adler. The fire led to the passage of the Clean Water Act of 1972. Adler also laid the historical groundwork of how Cleveland had passed a $100-million bond issue in 1968 to clean up the water (the federal governmen......strates that, contrary to popular belief, it isn't necessary for processing Holliday Junctions." Hakem and his fellow researchers identified mammalian Mus81 and then developed mice lacking the protein. They were able to show that these mice were fertile, something that would not be possible if Mus81 performed ...Scientists learn how adjuvant makes vaccines effective
... that both the Gr1 cells and the interleukin-4 are necessary for the priming of the B cells. When they inactivated the Gr1 cells, mice responded to a vaccine containing the adjuvant with fewer B cells and fewer antibodies. "Our research shows that alum injection triggers the accumulation of Gr1 cells in the sp...Two billion vulnerable to floods by 2050; number expected to double or more in two generations
...w planning strategies devised." "It is also necessary to ensure that increasingly freakish climate variability and the gradual forces of climatic change and deforestation are factored into the total picture," he says. There needs to be a shift in the international mindset from reaction and chari...MIT technology jump-starts human embryonic stem cell work
... because the cells are hard to grow, and the media necessary for their growth are expensive," Anderson said. Many of the media related to testing the cells, such as antibodies, are also expensive. In the current work, the scientists used an initial screening to find especially promising biomaterials for the di...Changes to insect-seeking calls of horseshoe bats may drive new species formation
...ersity of London, geographical barriers may not be necessary for speciation. In their study of one species of bat in Southeast Asia, the scientists found that the bats were diverging into exclusive groups primarily because of acoustic differences in the calls they make to locate the insects they eat. Their ...Trapping carbon in soil key for protecting global food security, dealing with climate change
...residues and putting carbon back in soil. Both are necessary for improving soil quality." According to the report, soil carbon sequestration can offset global fossil-fuel emissions by 5 to 15 percent each year. "The potential of carbon sequestration in world soils about 1 billion tons per year, is equal to th...Nature's ambush: pregnancy more likely from single unprotected intercourse than believed
...is possibility. However, a clinical trial would be necessary to establish such a mechanism in humans. "A simple randomized trial of volunteer couples using non hormonal birth control could test this last hypothesis definitively," said Prof. Wilcox. "It's remarkable that the biological forces shaping this inti...Nanotechnology pioneer slays 'grey goo' myths
...). He continued: "Self-replicating machines aren't necessary for molecular nanotechnology, and aren't part of current development plans." The paper, Safe Exponential Manufacturing by Chris Phoenix, Director of Research of the Center for Responsible Nanotechnology, (CRN) and Dr. K. Eric Drexler, also warns th......much additional research in other living models is necessary before these new insights can be applied to human disease. Using the C elegans model, Aballay and his colleagues are now conducting genetic screens to find genetic variants called polymorphisms in the host that appear to confer either resistance or s...