Science's Top 10: genome sequencing named top scientific advance of 2000
...tiquity, and uncovered mechanisms in the cell that guard against defective protein production. First Out of Africa: Fossil skulls, some 1.7 million years old and unearthed from the well-dated site of Dmanisi in the Republic of Georgia, may represent the first human ancestors to journey out of Africa. A...A persimmon a day could be better for your heart than an apple
...n. She is quick to add that other fruits also help guard against heart disease and urges people to include them in their diet as well. Persimmons, a very popular fruit in Israel, were chosen because they contain a "high percentage of polyphenols, especially tannins, which are very good antioxidants," said...UNC, Penn State scientists find gene that controls water retention in plants
...ngs in leaves known as stomatal pores. Surrounding guard cells regulate the opening and closing of the pore...n the soil becomes drier through lack of rainfall, guard cells increase in size to close down the openings and reduce the amount of water plants lose to the ...Biologists discover protein's impace on plant-water balance
...hapel Hill have discovered that a protein in plant guard cells impacts how well a plant holds water. Event... response to drought, sunlight, and other stimuli, guard cells control the opening and closing of microscopic stomatal pores on leaves of plants through whic...UCSD researchers decipher molecular "code" capable of controlling plant water loss during droughts
...overed that specialized cells in the leaves called guard cells that surround each pore, or stoma, "tune in"...he right frequency, the scientists discovered, the guard cells respond by closing the stomata for extended periods. When the oscillations are not at the righ......ertebrates, the findings of Rea's group could help guard against growing resistance to certain heavy metal-based drugs. Diseases caused by these parasites, which include elephantitis and lymphatic filariasis, kill millions of people worldwide each year, but physicians have noted with some alarm that tradi......wever, contingency plans should be in the works to guard against other bioterrorist threats such as smallpox, warns Matthews....Researchers explain how protein inhibits angiogenesis
... enlarges our view of the family of proteins which guard against abnormal angiogenesis. There are currently more than 20 angiogenesis inhibitors in clinical trials for the treatment of cancer, Kalluri writes in Science. These inhibitors fall into two general categories: Small molecules or antibodies that t...New solutions needed for extinction prevention and for sustainable management of marine resources
...ssurance of long-term profitability, as well as to guard against risk of extinction, says Stanford Professor Joan Roughgarden, an ecologist who will present her model for sustainability of marine resources Feb. 15 during the annual meeting of the American Association for the Advancement of Science (AAAS) i......ion against rising water tables and salinity and a guard against wind and water erosion, says Dr Freudenberger. In this region, only 4% of the area is under native woodland vegetation, yet this remarkable diversity of wildlife is hanging on to that 4%, he says. So the Hooded Robin, and even the smallest tr...New protein plays espionage role in bacterial attack on plants
... the weapons it uses, and, on the plant side, what guard molecules the host deploys. Known internationally ... the resistance protein RPM1 appears to serve as a guard for cellular proteins that are potential targets of pathogen molecules, like RIN4. Dangl and other r...Spinal cord injury and Alzheimers risk among topics at American Chemical Society meeting
... to our immune systems natural killer cells, which guard against tumors and viruses. (ENVR 166, Monday, April 8, 8 p.m., Convention Center, Room 203A, Level Two) Tuesday, April 9 Building a better antibiotic A one-day symposium will explore new approaches toward fighting drug-resistant antibio...Researchers solve killer protein's 'crime'
..."apoptosis," by instructing a fly cell's principal guard protein, called Drosophila IAP1, or DIAP1, to in essence self-destruct. Once DIAP1 is gone, a cell automatically begins to die. "The self-destruction of this key protein leads to the self-destruction of the entire cell," says Steller, who heads the...New program helps protect Asian elephants through crop-raiding prevention
...ant. Using a variety of methods including natural guard towers, tripwires, and a harmless-but-fiery chili juice, the team is looking to reduce elephant-human conflicts, which often result in extensive crop damage, human injury, and death to the elephants. The team, consisting of officials from WCS, WATALA...Tailor-made cancer drugs: Wave of the future?
...as AIDS, hepatitis and herpes, and could even help guard against new biologically engineered viruses that we haven't yet imagined. "Here's my vision of the future," Taylor said. "You go to a doctor's office and take a biopsy, which is then run through a DNA chip analysis machine allowing the appropriated ...A new twist on an age-old problem: Making knee replacements last
...of Health, may be a better understanding of how to guard against developing arthritis. "It may be that we can identify load thresholds that are bad, or types of loading that are bad, so we can train people to avoid doing these things," Fregly said....From the bone of a horse, a new idea for aircraft structures
...rs add extra material around portholes in hulls to guard against structural weakness or failure, said Stephen Cowin, a distinguished professor of mechanical engineering and director of the New York Center for Biomedical Engineering at The City College of New York. The shortcoming of that approach is that i...West Nile Virus capsid protein causes encephalitic inflammation by triggering cell suicide
...em that keeps apoptosis in check overpowering the guard as it were thus inducing the cell suicide. "Overall, our data suggest that WNV-Cp may interact with host cell proteins to induce apoptosis in the host cell," said Weiner, "Identifying these proteins will likely give more insight into the biology of...Purdue research hints that birds could spread Ebola virus
...viruses should encourage health officials to be on guard for it." The research appears in Sunday's (12/15) Journal of Virology. Two contributors to the group's research are Scott Jeffers, a graduate student in Sanders' laboratory, and Anthony Sanchez, an Ebola virus expert at the Centers for Disease Contro...Mathematical prediction of on-off switches in cell division proven
...says Sible." For example, cell cycle 'checkpoints' guard dividing cells from mistakes that may lead to cancer. Sible continues, "We saw something relevant but subtle in our simple system. If we raised the cyclin level modestly (beyond what was needed to trigger mitosis), we eliminated the checkpoint that ...