Risk of extinction accelerated due to interacting human threats
.... This new experiment confirms the deleterious and harmful interaction of most human threats and the urgent need for preventing them simultaneously. ...Sea creature's toxin could lead to promising cancer treatment
...reduced human tumors implanted in mice without the harmful side effects seen using other cancer drugs. "Diazonamide is a special molecule it's teaching us more than we imagined," said Dr. Patrick Harran, professor of biochemistry and a senior author on both studies. "This is a truly exciting result," said...For some species, an upside to inbreeding
...e from an evolutionary standpoint, in part because harmful mutations are more easily propagated through populations in this way, theory predicts that under some circumstances, the benefits of inbreeding may outweigh the costs. Researchers have now reported real-life evidence in support of this theory. Studyi...Standardized house dust aids health researchers
... about the potential for household grime to harbor harmful chemicals. A 2004 study by NIST and the Environmental Protection Agency (EPA), for example, found high concentrations of polybrominated diphenyl ethers (PBDEs) in household dust*. PBDEs were widely used as flame retardants in consumer products but ha...Women in polluted areas at higher risk of cardiovascular disease
...pollutant gases that travel along with them cause harmful effects once they are breathed in." Fine particulate matter is measured in micrograms (or millionths of a gram) per cubic meter; cities in the study had average levels of fine particulate matter ranging from about 4 to nearly 20 micrograms per cubic ...Rats on a road trip reveal pollution-heart disease risk
...ollution. Ultrafines in ambient air are especially harmful because they mix with reactive gases and are taken deep into the lungs as aerosols. At that point, they may interact with the cells that line the blood vessels and enter the circulatory system. Elder's group is the first to report a link between f...Researchers probe health and safety impacts of nanotechnology
...n chemical engineering, is probing the potentially harmful effects of nanotechnology by testing how ultra-sma...egulations are needed to guard against potentially harmful but currently unknown effects, said Kevin Powers, associate director of UF's National Science Founda...Cells passed from mother to child during pregnancy live on and make insulin
...ar as to whether the presence of such cells can be harmful to the recipient. A Bristol team has looked for maternal cells in children with type 1 diabetes, an immune-mediated disorder, and found that around 20 per cent of these children have unusually high levels of maternal DNA in their circulation. An even...Can engineered immune cells stop AIDS?
...ze the virus. "In laboratory tests, we remove harmful genes coding for the HIV virus and engineer the backbone, or spine, of virus so that it is no longer replicable " he says. "Once manufactured recombinantly, this modified virus the lentiviral vector -- becomes a natural delivery system that can tra...Scientists find new genetic clue to cause of Alzheimer's disease
...ions of the SORL1 gene influence production of the harmful protein fragments.......e immune system TM s first line of defence against harmful bacteria and migrate into the tissue at the site of infection to combat pathogens. For more than hundred years it was known that neutrophil granulocytes kill bacteria very efficiently by devouring them. After eating the germs neutrophils kill tehm wi...Dramatic results from combo therapy surprises Krabb-disease researchers
... the material it normally breaks down builds up to harmful levels inside cells. The enzyme missing in Twitcher mice and Krabb sufferers is responsible for getting rid of a particular kind of fat common in nerve cells. "Lysosomal storage diseases are some of the most devastating diseases around," Sands says....'Red tide toxins' leave beachgoers breathless
...ical phenomenon, known as Florida red tide, can be harmful for people with asthma. Florida red tides, an annual event in areas along the Gulf of Mexico, are blooms of the ocean organism, Karenia brevis (K brevis), that are concentrated along shorelines and produce highly potent aerosolized toxins. New resear...The bumper book of DNA no-no's
...here be forbidden sequences in the genome ones so harmful that they are not compatible with life? One group of researchers thinks so. Unlike most genome sequencing projects which set out to search for genes that are conserved within and between species, theirgoal is to identify "primes": DNA sequences and c...Uric acid and spinal cord injury treatment
...l cells to produce transporter proteins that carry harmful compounds away from neurons in jeopardy of chemical damage. This opens the door to identifying a unique drug target for new therapies. Glutamate is a compound that under normal circumstances aids neurons in transmitting signals for cognitive functi...Hotspots of mercury contamination identified in eastern North America
...also significant. Although mercury is not directly harmful at ambient levels, it is concentrated up to a millionfold and chemically modified in aquatic food chains, resulting in dangerous levels of methylmercury in some wildlife species. Fish consumption advisories responding to mercury contamination exist i...ACS News Service Weekly PressPac -- Dec. 20, 2006
...of Guelph in Ontario point out that mycotoxins are harmful compounds produced by fungi that can grow in cereal grains and nuts used in many pet foods. The compounds are carcinogenic and have other ill effects when consumed at sufficient doses. The U. S. Food and Drug Administration (FDA) and its counterpart...... over the course of gestation, they found that the harmful T cells are not present in the tissue prior to day 42 of gestation. The scientists also found that tissue of this age exhibits optimal growth potential as well as secreting factor VIII, the blood-clotting protein missing in hemophilic patients. Thus...New study shows promise of toxicogenomics in environmental monitoring
...uld help us make more informed decisions about how harmful a toxicant is, and it could give regulators a new direction that we should be pursuing in monitoring water quality. For instance, we could find that it's necessary to regulate toxicant levels at lower levels, so we can act before toxicants get to the......undergo polymerase chain reaction for the selected harmful pathogens. Polymerase chain reaction is a process that takes a small amount of DNA and makes billions of copies so the pathogens can be easily detected, Hashsham explained. Most of the genetic material in any bacteria isn't harmful. For instance, t...