American Chemical Society's Weekly PressPac -- Aug. 8, 2007
...shness of a tuna by detecting the amount of amines present in the sample. The sensitivity of the described assay is better than the typical mammalian sense of smell and is able to detect this nonvolatile amine at hazardous levels before the fish would begin to smell rancid, the report states. The approach al......tant regulator of glioma invasion. The researchers present the first evidence that this neurotrophin receptor can also be a potent mediator of glioma invasion, and they show that the expression of this receptor is sufficient to impart a dramatic invasive behavior on genetically distinct tumors. These data hi...Which came first, the moth or the cactus?
... offspring. "Mutualistic relationships like this present a problem for ecological theory," said Rice University ecologist Nat Holland, who co-discovered the senita moth-senita cactus mutualism in 1995 and has studied it ever since. The problem is that the moths lay their eggs inside the cacti's flowers i...Interaction of just 2 genes governs coloration patterns in mice
...the Agouti gene can increase the amount of protein present without changing the protein's sequence, also reducing Mc1r activity and yielding lighter pigmentation. Both genes affect the type and amount of melanin in individual hairs. When both genes are turned on, the mouse is dark in color. A mutation that...Doernbecher Children's Hospital scientist earns coveted Javits award
...in. The fact that thesecells appear normal and are present in large numbers in the regions ofbrain damage raises the possibility that we might develop therapies thatallow these oligo-cells to mature and make the myelin needed to restoregreater function to the damaged brain," Back said. Back is the second O...New study suggests Concord grape juice may provide protection against breast cancer
...Illinois. These new data suggest that anthocyanins present in Concord grape juice, as well as some other fruits and juices, warrant further study for their breast cancer chemopreventive potential. This research is the latest to suggest that Concord grape juice may be of value in maintaining breast health by...European Science Foundation's Forward Look reaches out beyond the endless frontiers
...with European relevance. Impacts of former and present Forward Looks Nanomedicine (completed in 2005, see also http://www.esf.org/activities/forward-looks/medical-sciences-emrc/completed-forward-looks-in-medical-sciences/nanomedicine.html ) The Forward Look Nanomedicine was organized around f...New test improves detection of liver cancer
...ration of particular substances called 'markers' present in the blood. For the detection of HCC, only one marker (AFP) is generally used. However, this marker has a low specificity and is frequently inadequate because of false-positive results. New blood test A new test for detecting HCC was developed...Acute sleep deprivation leads to changes in nighttime urine production for men and women
...ndstrupgaardsvej, Aarhus, Denmark. Dr. Mahler will present her team's findings, entitled, "Sleep Deprivation and Nocturnal Urine Output - Gender Difference in the Effect," at the upcoming conference, Sex and Gender in Cardiovascular-Renal Physiology and Pathophysiology. The meeting, sponsored by the American...Edible fish feasts beats malaria
...f the culicine mosquito population. The findings present a win-win situation for Kenyans, who can use the fish to limit mosquito populations and gain food and income from them too. "O. niloticus fish were so effective in reducing immature mosquito populations that there is likely to be a noticeable effect ...Grapes, soy and kudzu blunt some menopausal side effects
...istance and cognitive decline when estrogen is not present in female rats. According to Dr. Wyss, It is unlikely that these polyphenols could eventually provide effective stand-alone therapy for post-menopausal women, but in the future they may provide effective adjunct therapy that complements the use of lo...Inflammation may cause preterm labor and fetal deaths
...osely paralleled localization of bacteria. In the present study, the researchers found that mice deficient i... response. Within eighteen hours, inflammation was present in the TLR4 mice. The researchers wrote, F. nucleatum colonization in the mouse placenta was acco...Taking a supplement of glycine helps prevent degenerative diseases such as arthrosis or osteoporosis
...used by the organism to synthesise proteins and is present in foods such as fish, meat or dairy products. The...subchondral bone exposed. Arthrosis has no cure at present and the most widely used treatments are pain-killers and NSAID (non-steroidal antiinflammatory drugs...See what you're spewing as you speed along
...nto a box while the engine is idling and the gases present are then measured. The University of Manchester team employed a device known as a near-IR diode laser sensor to measure the variation in gas concentration during changes in the operating conditions of a Rover engine, such as increasing and decreasi...Improved NIST SRM aids lead poisoning detection
...hough it is not yet known if any lead is naturally present in human blood). The lowest concentration in the SRM is 25 times lower than the DHHS 2010 goal, and will enable the development of next generation clinical methods that will be needed to accurately measure blood lead levels in children as progress is...National Ecological Observatory Network featured at ESA/SER Joint International Conference
... and colleagues from the ecological community will present a detailed design update of the NSF-funded National Ecological Observatory Network at the Ecological Society of America (ESA) and the Society for Ecological Restoration (SER) joint meeting in San Jose, California, August 5-10, 2007. Members of the ...Immunity in social amoeba suggests ancient beginnings
... This signaling pathway or a very similar one is present in plants and animals, he said. Now it has been id...ticellular is to look for characteristics that are present in two, three or all four of these main groups, he said. Those were likely present in the progenit...Unknotting DNA clue to cancer syndrome
...n SGS1 is defective, all four matching chromosomes present can get entangled in a multichromosome Holliday junction. "It's a lot less tidy than we thought, but with both break ends being capable of exchange the repair process will also be more efficient. The drawback is that it's also more risky," Hunter s...Altering a protein makes mice less fearful
... very similar to the human gene, and the ASIC1a is present in human brains, where it is found in the amygdala. There are no known mutations of the ASIC1a gene linked to altered fearfulness, but the UI study raises the possibility that mutations or variations in the gene might be associated with heritabilit...Handicapping tuberculosis may be the way to a better vaccine
...stem cells further chop up these cellular bits and present them to white blood cells called T lymphocytes. Each T lymphocyte specifically recognizes a different small piece of protein, known as a peptide. Upon encountering their specific peptide, T lymphocytes multiply and mount an attack against the pathoge...