Cigarette smoke causes breaks in DNA and defects to a cell's chromosomes, Pitt study finds
...mosomes is the end result. "Others have found the presence of anaphase bridges is correlated with chromosome instability in cancer cells. Because cigarette smoking is linked to oral, larynx, lung, bladder and esophageal cancers, our results showing that cigarette smoke can produce anaphase bridges and destab...Far more men than women favor routine paternity testing at birth
...two additional questions one regarding a father's presence in the delivery room and the other regarding inducement of labor to mask the real aim of the survey. The order in which the questions were asked was changed randomly. "It comes out pretty much the same, whether you ask it by itself or ask ...Wisconsin scientists develop quick botox test
...nescent proteins whose glow is extinguished in the presence of the toxin. The tests are capable of detecting all seven variants of the poison. Currently, the most sensitive and common test for toxin activity is exposing mice to an agent. The process takes time and many animals are used and die in the process....Researchers create nanotubes that change colors, form 'nanocarpet' and kill bacteria
... material's interactions with living cells. In the presence of E. coli, some strains of which are food-borne pathogens, the nanotubes turned shades of red and pink. Moreover, with the aid of an electron microscope, the researchers observed the tubes piercing the membranes of the bacteria like a needle being i...No role for simian virus 40 in human pleural mesotheliomas
...sinterpretation of assay results as indicating the presence of genuine SV40 in human tumors. Their findings are a caution to other researchers to be vigilant in avoiding these technical errors when planning future studies with SV40. "Because SV40 was a recognized contaminant of some polio and adenovirus v...Females may be more susceptible to overindulge 'sweet tooth' cravings than males
...use exercise as a means to control appetite in the presence of such a diet. The results of their study were published in the American Journal of Physiology Regulatory, Integrative and Comparative Physiology (August 5, 2004 Article in Press). Abstract Rats increased their caloric intake when fed a diet cont...Enzyme maintaining chromosome ends is linked to bone cancer recurrence, decreased survival
...ive" form of a gene. The team also tested for the presence of ALT in cancer cells. A total of 14 (32 percent) of the primary tumors expressed TERT mRNA. Of those, eight tumor samples expressed only TERT and six expressed TERT and activated ALT. In addition, a total of 30 (68 percent) did not express TERT mRN...A long-necked sea predator from China described in Science
...a dense medium that can alert prey to a predator's presence long before it strikes....Cannabis may help combat cancer-causing herpes viruses
... was prevented if infected cells were grown in the presence of THC. While cells infected with a mouse gamma herpes virus normally died when the virus was reactivated, these same cells survived when cultured in the laboratory along with the cannabinoid compound further evidence that THC prevents viral reactiv...Scientists find nanowires capable of detecting individual viruses
...licon wires can be used to electrically detect the presence of single viruses, in real time, with near-perfect...tra-sensitive detectors that turn on or off in the presence of a single virus. The capabilities of nanowire detectors, which could be fashioned into arrays capa...Study explores gene transfer to modify underlying course of Alzheimer's disease
... it cannot replicate on its own and must be in the presence of another virus to be active. The vector will transfer the gene for NGF only to the area of the brain where it is placed. The virus is common; most people have already been exposed to it and so have developed antibodies to the virus in their blood,"...Wastewater could treat itself, power city
... by which microbes decompose organic matter in the presence of oxygen. By using anaerobic digestion instead, in which microbes decompose matter without oxygen, the process' byproduct of biogas - methane-rich gas with an energy content approximately 75 per cent that of natural gas - could become a valuable ene...Tips from the Journals of the American Society for Microbiology
...dict Gum Disease as Adult The presence of certain bacteria in dental plaque of children c...althy children, it is important to investigate the presence of periodontal pathogens as the permanent teeth start to erupt," say the researchers. ...JCI table of contents September 15, 2004
....org/press/21589.pdf Pathways to Immunity The presence of bacterial components triggers Toll-like receptors (TLRs) to activate macrophages and DCs through various signal transduction pathways. In response to LPS, a TLR turns on the serine/threonine kinase Cot/Tpl2, which then activates ERK1/2 in macropha...A liking for sweets, combined with novelty seeking, may predict alcoholism
...ause previous research has strongly implicated the presence of various elements of behavioral undercontrol a personality trait that reflects an individuals inability or unwillingness to inhibit behavioral responses in the face of impending punishment in alcoholics. Novelty seeking has been frequently foun...Simian virus 40 not associated with non-Hodgkin lymphoma, study shows
...40 virus-like particles. SV40 seropositivity--the presence of antibodies to SV40 virus-like particles--was detected in 7% to 10% of NHL case patients and 10% to 11% of control subjects. When the researchers accounted for cross-reactivity with the related human polyomaviruses BK and JC, they found SV40-specif...Byproduct of water-disinfection process found to be highly toxic
...t plants done in 2002. The survey reported on the presence of 50 high-priority DBPs based on their carcinogenic potential. The report, published in April, also identified 28 new DBPs. Because so many new DBPs are being found in drinking water, Plewa said, two basic questions should be asked: How ma...Molecule awakens and maintains neural connections
...axonal areas there is very little evidence for the presence of this protein." When the researchers blocked the activity of the version of the Dasm1 gene found in rats, they found dendrite arborization to be drastically reduced in cultured brain cells. The researchers also studied the effects of Dasm1 on the...Early detection hope for eye disease
... study the blood vessels of the eye and reveal the presence or progression of any disease. They modified a standard ophthalmoscope, adding a liquid crystal tuneable filter, which allowed them to take images of the retina at a series of specific wavelengths. The images are captured by a sophisticated digital ...$18 million bioinformatics center to become weapon against deadly diseases
.... "These advances will occur, however, only in the presence of effective cooperation between experimental research and the bioinformatics efforts." To ensure such cooperation, the center's outreach and training for experimental researchers will be led by the National Center for Supercomputing Applications (N...