Engineered Corn Can Kill Monarch Butterflies
...s to specific sites. When the toxin binds, thegut wall changes from a protective layer to an open sieve so that pathogensusually kept within the gut and excreted are released into the insect's body. As a result, the caterpillar quickly sickens and dies. Bt -engineered corn is among the first major comme...Roundworm studies yield new insight into organ formation
...But we also found that it was expressed in thebody wall muscle, which didn't make a lot of sense to us. So...since quite frankly, we werenot expecting the body wall muscle expression to be important in gonaddevelopment." Next, the investigators constructed two kin...New study establishes when pregnancy starts
...essfulattachment of a fertilized egg to the uterus wall -- occurred six to 12 daysafter ovulation. "The risk of early loss was strongly related to the time ofimplantation," the authors wrote. "Early loss was least likely when implantationoccurred by the ninth day (13 early losses among 102 pregna...Embryos that implant in uterus 'late' prove more likely to die in first weeks of pregnancy
...10.) The implantation of thefertilized egg in the wall of the uterus is necessary for the nourishment andgrowth of the fetus. Surviving pregnancies implanted only about one dayearlier, on average, than the non-survivors: 10.5 days v. 9.1 days fromfertilization to implantation. But the day-by-day trend w...SFVAMC-UCSF scientists solve a key protein structure
...tthree of the complexes "pump" protons through the wall of the mitochondria,which produces a gradient of electrical energy. At the end of the respiratory chain, Complex V uses this newly created energy toproduce adenosine triphosphate (ATP). Cells in the body use ATP for fuel bychemically breaking its bo...Study shows cognitive decline is not normal in aging
... measuring systolic blood pressure, carotid artery wall thickness withultrasound, major ECG abnormalities and atrial fibrillation from ECG. Cognitive function is defined as the intellectual process by which onebecomes aware of, perceives, or comprehends ideas. It involves all aspects ofperception,...Mayo Clinic study shows dietary supplement may help fight heart disease
... of blood vessels (endothelium)to relax the vessel wall and may inhibit the build-up of platelets and plaques. "These findings are exciting," Dr. Lerman says, "but we want to cautionpatients to discuss the use of L-arginine -- as the use of any supplement --with their physicians."...Astronauts blame their space station symptoms on bad air
... closeproximity for a number of hours. Opening the wall panels would disrupt air flowthrough Zarya, which might mean that a build-up of exhaled carbon dioxide is toblame. A more sinister problem would be the release of volatile chemicals frommaterials used to manufacture Zarya. According to the leaked doc......curs andin proving whether other parts of the cell wall are involved in the process. Having tuberculosis bacilli carrying molecules that could contain theseeds of their own destruction seems unlikely, but Belisle points out thatlipoproteins--of which there are numerous separate forms--serve sepa...New gene therapy found safe for treating coronary heart disease
... bloodflow to the heart muscle, and improved heart wall functioning. If further research proves that the gene therapy is effective,it could be used in several ways to treat coronary heart disease researcherssay. "Cardiac surgeons could use it in addition to bypass surgery,"...Microbial janitors tackle nuclear clean-up problems
...used to remove surface contamination on a concrete wall atthe reactor in a proof-of-concept test run. The...his technology. The depth of contamination on the wall atthe Sellafield reactor is anticipated to be around 2 to 3 mm - about thethickness of three dimes s...Scientists suggest genetic shutdown links estrogen, heart disease
...l disease, smooth muscle cells in a bloodvessel's wall tend to grow out of control -- "not unlike a tumor," says Post. "Normally, estrogen inhibits smooth muscle overgrowth." But, she suggests, inblood vessels unable to respond to estrogen's effects, smooth muscle cells couldrun rampant, giving blood ve...Fragment of AIDS virus may be used to deliver therapeutic proteins to cells
...mbrane. The limits imposed by the bioavailability wall are stringent. For example,the cell membrane will not transduce proteins larger than about six amino acids.Yet even small human proteins contain about 150 amino acids. Beta-galactosidasecontains over 1,000 amino acids and is nearly 200 times the size...NSF grants provide boost to research on inner workings of plants
...University will focus on how components of thecell wall are made in Arabidopsis and maize. Research funded at North CarolinaState University will examine the genes related to changes in wood quality inloblolly pine. Pines are an economically important crop in the U.S. and yieldthe bulk of wood pulp for ...Scientists uncover possible cause of colitis
...ice had twice as muchsubstance P in the intestinal wall than normal mice. The NEP-deficient mice alsoshowe... proteins and immune cells from theblood into the wall of the colon, which may predispose the animals to developinflammation, the scientists reported. The ...A molecular chink in the armor of tuberculosis
...distinctive colonies that indicated defective cell wall biosynthesis." Wild-type TB bacilli form flat and corded colonies on agar, but the mutant colonies looked strikingly different. "They looked like the Pompidou Center in Paris, with the pipes running all over the outside of the building," explained J...A molecule family hinders spinal cord regeneration, UF brain institute team finds
...paper's authors. "This increaseappears to create a wall of molecules known to be associated with limiting growth. Perhaps as injured host fibers are trying to grow into the transplant, they are blocked by thiswall of CSPGs. And, as the fibers of transplanted neurons are trying to grow out, they are alsor...... tended to spend more time attempting to climb the wall of the pool orswimming along the wall." The swimming speed of all the rats remained the same, however, whichindicated that the difference didn't stem from a change in motor skills or motivation. The changeappeared to be in learning prowess. Resear...Magnetic resonance imaging of sexual intercourse is both possible and useful...
...the uterus raises and the anterior (front) vaginal wall lengthens. There was noevidence of an increase in the volume of the uterus during sexual arousal, or a change in the positionof the uterus, as had been reported by Masters and Johnson in the 1960s, they say. Weijmar Schultz et al also found that du......giogenic inhibitors discovered in the blood vessel wall by BIDMC researcher Raghu Kalluri and his colleagues. In addition to its preliminary promise as a cancer-fighting agent, canstatin is also relatively easy to produce in quantities that will be necessary for human clinical trials, which may begin in o...