Recombination protein dynamics observed with single monomer resolution
.... RecA is a DNA recombination protein found in the gut bacterium E. coli. A human homolog, called Rad51, interacts with many proteins, including BRCA2, whose mutation increases susceptibility to breast and ovarian cancers. A better understanding of how these proteins function could help our understanding...Study confirms ammunition as main source of lead poisoning in condors
...ingest lead from ammunition in animal carcasses or gut piles left behind by hunters. The UCSC researchers used a "fingerprinting" technique based on the unique isotope ratios found in different sources of lead. The technique enabled them to match the lead in blood samples from condors to the lead in a...'Conversation stoppers' fight deadly bacterial infections
...srupting beneficial bacteria, such as those in the gut that aid digestion, she says. Some 'conversation stoppers' also hold promise for fighting crop diseases, biofilm formation on medical implants and catheters, and even bioterror agents. More studies are needed, says Blackwell, adding that her compo...A new understanding of how cells defend themselves against bacterial pore-forming toxins
...cused on epithelial cells, the cells that line the gut and blood vessels. Van der Goot explains that because they form a protective layer, it's critical for the organism that these cells survive, even if they don't function correctly. If the cell dies, it leaves the underlying tissue exposed. She hypothe...Heavy drinking can hasten the progression of the simian immunodeficiency virus disease
...void their toxic effects that damage the liver and gut along with the alcohol," added Kendall Bryant, coordinator of HIV/AIDS research at the National Institute on Alcohol Abuse and Alcoholism. "This 'set point,' which is unobserved, is not characterized by traditional measures of disease status. Dr. B...Most widely used organic pesticide requires help to kill
...acillus thuringiensis is facilitated by the normal gut community," says Nichole Broderick, a UW-Madison g...ple, have anywhere from seven to twenty species of gut bacteria. Humans have between five hundred and one thousand species of micro flora that take up resi...Gene key to taste bud development identified
... in the development of the lung, esophagus and the gut in embryonic mice" she said. "We were quite surpri...er understanding of developmental disorders of the gut caused by mutations in the human SOX2 gene, Hogan said. For example, babies with such mutations can ...EU grants 2.5 million euros for research on childhood gut infections in Latin America
Diarrhoea due to gut infections is a world-wide problem causing about 1...ited. Tools for diagnosis and surveillance of many gut infections are inadequate. Leading experts from four European countries and five Latin American coun...'Protecting virus' offers instant flu protection and converts flu infections into their own vaccines
...useful treatment for domestic animals. Ducks get a gut infection and chickens a combined gut and respiratory infection, so it may be possible to simply deliver the protecting virus to them in t...RELM-beta: A new link in the chain between bacteria and inflammatory bowel disease
... Previous studies have shown that bacteria in the gut induce cells of the intestine to produce RELM-beta. So, David Wu and colleagues set out to investigate whether this protein had a role in IBD. They found that mice lacking RELM-beta were protected from DSS-induced colitis and that RELM-beta was highl...JCI table of contents: Oct. 5, 2006
... Previous studies have shown that bacteria in the gut induce cells of the intestine to produce RELM-beta. So, David Wu and colleagues set out to investigate whether this protein had a role in IBD. They found that mice lacking RELM-beta were protected from DSS-induced colitis and that RELM-beta was highl...Evolutionary harmony for stinkbugs and their gut bacteria: A perfect match
... access journal PLoS Biology suggests that not all gut symbionts opt for the more promiscuous lifestyle. ... first evidence of cospeciation between a group of gut symbionts and their insect hosts, plataspid stinkbugs. Not only do their evolutionary histories mir...Poultry consumption, handling are risk factors for antibiotic resistance in humans
...r antibiotic resistance in Enterococcus faecium, a gut bacterium that is increasingly the cause of infect...o transfer of antibiotic resistance genes to human gut bacteria through the food supply and they provide additional evidence that use of growth promoters i...The neurobiology behind why eating feels so good
...n. Although ghrelin is known to be produced in the gut and to trigger the brain to promote eating, it remains to be determined precisely how ghrelin affects different parts of the brain. Now, in a study appearing online on October 19, in advance of publication in the December print issue of the Journal o......pears to be the first evidence of parasites in the gut contents of a dinosaur, indicating even the giants...an 200 suspected parasite burrows in 17 samples of gut material from the dinosaur that most likely were made by tiny worms similar to annelids and nematode...Scientists: New phylum sheds light on ancestor of animals, humans
...d. The Xenoturbella does not seem to have a brain, gut or gonads, making it unique among living animals. More precise genomic sequencing at the Whitney Lab where Moroz and his collaborators identified about 1,300 genes including mitochondrial genes helped to reveal a surprise: Xenoturbella belongs to ...Dragonfly's metabolic disease provides clues about human obesity
...ess, which may be a sign that fructose affects the gut microbial flora," said Marden. Another clue is t...disease should test the hypothesis that changes in gut microbial composition can cause these syndromes." Marden's lab, which studies how insect muscles ...Sea urchin genome suprisingly similar to man and may hold key to cures
... just one gene expression of a single-cell layered gut of the sea urchin larva, at least 14 proteins binding the DNA at 50 sites are needed, Calestani said. "Multiply that hundreds of times and you begin to understand the level of complexity involved in human development," she added. Using a "simple"...The biggest bug in gut discomfort
...ull-scale invasion of millions of cells lining the gut cant be ignored.......r strategies against hostile bugs peristalsis, low gut pH, lytic enzymes, and antimicrobial peptides to prevent microbial colonization of the intestine. In dissecting two conserved pathways required for C. elegans immunity to bacteria, Aballay found a wealth of data on innate immunity plus a surprisin...