Study Finds First Genetic Clues To Brain Tumor Treatment
...roscopic examination ofoligodendrogliomas shows no difference between the tumors that do and do notrespond to chemotherapy. Louis and his team previously had identified three genetic changescharacteristic of oligodendrogliomas: loss of part of one copy of chromosome 1,loss of part of one copy of chromosome 19 ...Ribozymes Come Ready For Action
...uce an image with greater resolution. Despite the difference in resolution, both groups produced images revealingactive sites that are largely preorganized—they don't require major shapechanges in order to catalyze reactions. The active sites of both the Tetrahymena ribozyme and the viral ribozyme have t...USGS Finds Sea Otters At Risk From Killer Whales In A Changing Ocean
...rcent). The researchersattributed this significant difference to predation by the killer whales. Killer whales and sea otters have existed together for thousands of years, butkiller whales are offshore dwellers, whereas sea otters live along the coast.Estes emphasizes that the sea otter is a keystone species of......ics isimportant and that's why it makes a whopping difference what kind of twin theyare." There's further suggestion for the effects of genetics among this groupof children,according to Dale, if you assume fraternal and identical twins are treatedsimilarly in the way parents talk and read to them. ...Inherited Depression Linked To Shortage Of Cells In Brain Region
...d I wanted to identify the cellular basis for this difference insize," Price explains. Using samples fro...ns. But to their surprise, there was instead a big difference in the numberof cells called glia. These housekeeping cells recycle ions and chemicals thatcome out ...... other families. They also determined that the key difference between the six normal versions oftau gene and the three mutated versions is a sequence of the gene that encodes aportion of tau protein that binds to microtubules. Microtubules are proteinfilaments that help provide support for cell structures such...Research Suggests New Way To Gauge A Woman's Fertility
...men, Danforth said. However, the results showed no difference between the older and younger women in terms of FSH levels. “This suggests that inhibin levels may be a more sensitive gauge of ovarian function than FSH levels,” Danforth said. “FSH levels alone may be a less reliable in...Common Type Of Aircraft Wing Susceptible To Hazardous Icing
...but the size of theimpinging droplets makes a huge difference in their effect upon the aircraft."The vast majority of icing encounters haveoccurred with droplet sizes of 2 to 50 microns," Bragg said. "These strike thewing close to the leading edge, where anyice buildup can be removed by the de-icing boots." Lar...Aluminium Study Puts Drinking Water In The Clear
...um-treated drinking water. Age and gender made no difference to the amount ofaluminium absorbed from drinking water. "The results were able to establish that the way the human body copes withaluminium from food and water is similar. This means that aluminium fromalum-treated drinking water is not uniquely bioa...... word meanings with wordforms. Another interesting difference in these language errors was that withstimulation to Broca's area, S.T. made no effort to self-correct his imprecisesigning. However, with stimulation to the supramarginal gyrus, he would makesuccessive attempt to produce the correct sign (for oyster...Wake Forest Physicians Demonstrate How Gene-Diet Interaction Affects Cholesterol Absorption
... unchanged in the group with the variant gene. The difference wasstatistically significant. Absorption of cholesterol was lowest on the low fat diet, but thedifference between the gene groups was not significant. On the high saturatedfat diet, both gene groups absorbed more cholesterol, but again the d...More Than Half Of Children Eat Too Much Fat
...rdisease, the habitswe form as children can make a difference in how we fare in this difficultfight," says Kerry J.Stewart, Ed.D., lead author of the study and an associate professor of medicineat Johns HopkinsBayview Medical Center. "Because cardiovascular disease begins in childhood, weurge parentsto take a ...Calcium Channel Blocker Slows Hardening Of Arteries In Some Key Arteries, But Not Others
...d carotid can lead to stroke. There was no difference in the overall mortality, in rate of heartattack o...y, between placebo andamlodipine, but there was a difference in ultrasound," Byington noted. The investigators found the results somewhat surprising, sin...Discovery Of Mutation May Lead To Help For Male Fertility Problems
...Dermott Center for Human Growth andDevelopment. "A difference in this mutation compared with other mousereproductive mutations is that it is selective for spermatogenesis (sperm production) and does not seem to affect oogenesis (eggformation in females). The researchers began investigating the effects o...Chinese And US Scientists Identify The World's Oldest Flowering Plant
...2 million and 148 million years old. Not that the difference is worth quibbling over. "Either way," Dilcher said, "this is still the oldest flowering plant." Furthermore, he said, that distinction may be fleeting. "I don't think this was the one and only first flower," he said. In fact, other research sugg...Measurements Of Protein Surface Verify Electrostatics Model
...the point of zero charge for the net protein. "The difference in the pH-dependence between the probed surface and the solubleprotein clearly demonstrates that theseforce measurements indeed reflect the local charge density of the orientedprotein, rather than its net charge," Leckbandsaid. The experimentally mea...Cheap, Soy-Based Antibodies Prevent Genital Herpes In Mice
... we're talkingabout several orders of magnitude of difference in thinking," said Kevin Whaley,a Hopkins biophysicist who is one of the authors of the report. "Right now,people are using the antibodies for therapeutic purposes, and it costs from $200to $1,000 a dose. We believe we can bring the costs for prevent...Clues To Molecular Cancer Switches Probed
...n position. Additional analysis determined thatthe difference was an inherited structural variation found in the generalpopulation rather than an abnormal mutation of these cancer cells. "It is well established that MMP-1 has a critical role in collagen degradation. Therefore, the discovery of a structural alte......n atprealtitude. However, there was no significant difference between the mean EPOconcentration prealtitude and after 14 days in the nonresponders." Furthermore, the researchers tabulated an increase of 8 percent in total redblood cell volume in the responders, with no change in the nonresponders afterfour wee...Bacteria Becoming Increasingly Resistant To Antibiotics, But New Vaccines Are On The Horizon
.... Researchers then determined whether there was a difference inoutcome if the infecting organism was an antibiotic-resistant strain ofpneumococcus. "If you look at each year of the three-year study and look at the percentages,you see a dramatic increase in antibiotic resistance between the second year,for...