Scientists raise concerns about second wave of 'mad cow' prion infection
...ndation that no additional residency deferrals are necessary in the U.S. at this time. "If exposure to an infectious agent can be stopped, then the disease can be stopped," said Dr. Asher. "Physical removal of vCJD from blood appears to be the most promising line of attack." Dr. Asher also commented that s...Conversion of flower organs into leaves
...ly related genes, all of the "MADS-box" class, are necessary for the formation of sepals, petals, stamens, and carpels and that the loss of activity of all four genes results in the conversion of flower organs toward leaves. ...New source for heart bypass replacement blood vessels: Fibrin-based TEVs
...lture, the TEVs showed the strength and resiliency necessary for implantation. Even more exciting, 15 weeks after implantation, the fibrin-based TEVs "exhibited remarkable remodeling with considerable production of collagen and elastin, and significantly increased mechanical strength (and) physiological level...Identifying the path to infection
...nce. However, the twin pore configuration might be necessary to coordinate the assembly and secretion of the adhesive. This is consistent with other membrane proteins that perform similar functions. "Our finding provides new insight into how the adhesive protein is assembled and secreted, but we need to ...Sex-determining genes of infectious fungus resemble human Y chromosome
...red from recombination along most of its length, a necessary requirement to prevent genes that encode male traits from infiltrating the female X chromosome, Heitman noted. The researchers suggest that, despite the lack of recombination, some fungal mating type gene repair might occur through the excha...Tropical birds sensitive to environmental cues that can be impacted by global warming
...in higher latitudes. Correct timing of breeding is necessary for reproductive success, Moore said. Research by others has shown that testosterone is the main physiological cue regulating seasonal changes in the neural song-control system. Seasonal changes in the song-control system have been demonstrated by ot...JCI table of contents, November 15 2004
... of P50 and Bcl3, which in turn may activate genes necessary for the development of atrophy. TITLE: Disruption of either the Nfkb1 or Bcl3 gene inhibits skeletal muscle atrophy. AUTHOR CONTACT:Susan C. Kandarian Department of Health Sciences, Boston University, Boston, Massachusetts, USA. P...Muscle loss from space travel, prolonged inactivity linked to two genes
...eriods of disuse. "By understanding the genes necessary for muscle atrophy," says Kandarian, lead researcher and professor of health sciences at BU Sargent College of Health and Rehabilitation Sciences, "we can begin to study the protein products required for atrophy. Our ongoing research shows that the ...Discovery of real-time natural gas formation offers prospect for renewable energy resource
...tially enormous natural energy resource it will be necessary to amend certain current operating practices as well as review current legal and regulatory underpinnings of energy development. The company is currently discussing its findings with Wyoming and U.S. national agencies, as well as with major energy co...Researchers call for studies on role of BRCA1 mutations in chemotherapy response
...eclinical evidence suggests that BRCA1 function is necessary for spindle poisons to work. The authors recommend that prospective studies be conducted to evaluate BRCA1 expression and chemotherapeutic response and discuss several issues that should be considered when designing appropriate clinical trials. "By t...Study identifies molecular complex vital to creation of miRNAs
... scientists showed that both DGCR8 and Drosha were necessary for the processing of primary miRNA into a precursor miRNA neither alone was sufficient to do the job. In another set of experiments, DGCR8 was intentionally inactivated, which led to excessive accumulations of the primary microRNA.DGCR8 is one of t...Genetic discovery paves way to decode sense of smell in mammals
...nical difficulties that have largely prevented the necessary experiments," Matsunami said. "The finding of these accessory proteins opens the door toward understanding the mechanisms underlying our sense of smell." Matsunami and his colleagues reported their results in the November 24, 2004, issue of Cell. ...Studies in Royal Society journals include stress in birds and depletion of medieval fish stocks
...mous adder. This shows that bright colours are not necessary to generate predator avoidance of noxious prey. It...areas. This attack pattern is widely thought to be necessary for population regulation. However, until now it has been found comparatively rarely in nature. Usin...Novel AT2R gene transfer prevents hypertension-related enlarged heart, cardiac fibrosis
...r enables targeted delivery; 100% transduction not necessary The study utilized a lentiviral vector to deliver and enable overexpression of AT2R in the heart on a long term basis. The paper notes that AT2R was predominantly overexpressed in the heart. Furthermore, "all of these effects were seen despite limit...How the brain is wired for faces
...ivity when we see a face--and even that the FFA is necessary for us to recognize faces--there is controversy over what kind of processing the area is doing. Now, Galit Yovel and Nancy Kanwisher have tackled two central questions with one set of experiments: the nature of processing that occurs in the FFA and w...Brain surface stimulation alleviates Parkinson's symptoms
...t requiring the complex brain stereotactic surgery necessary to place the deep-brain electrodes that are now us...that, although comparative clinical trials will be necessary to determine whether motor cortex stimulation can be as efficient as direct stimulation of the deep-...Read your shampoo's label: Study finds common ingredient stunts developing neurons of rats
...nt for outgrowth of axons and dendrites as well as necessary for cell signaling. But to kick into action, FAK must undergo tyrosine phosphorylation, whereby collections of molecules called phosphate groups are added to FAK's sequence of amino acids. Like all proteins, FAK is comprised of a unique sequence of s...NIH provides $32.8 million to enhance biomedical informatics research network
...supports the information technology infrastructure necessary to achieve distributed collaborations and data sharing among the test bed participants. Although all three test beds involve some aspect of neuroimaging, the problems that they are addressing are common throughout biomedical research and the solutio...US researchers warn of possible fertility risk to men using laptop computers on their laps
...n the men sat with their thighs together, which is necessary to keep LC on the lap. But, the rise was significa...ng effect of the computer and the sitting position necessary to balance the computer. The magnitude of scrotal hyperthermia associated with abnormal spermatogene......iruses not only instruct the cell to make proteins necessary to assemble more virus particles, but they also ch...entiate and die at proper times - actions that are necessary for health in highly specialized bodies like our own. Andrisani's team theorized that the X protein ...