Fire ant protein may help scientists use fire ants' biology against themselves
...the ants see and smell queens that aren't there by sending them false signals. This would disturb the whole social organization." If the ants smelled the presence of too many queens, Krieger said, they would get agitated and begin killing other ants in the colony. The researchers also found the newly identif...Defective cell transport suggested in Alzheimer's disease
... to nerve cells, which have the unique property of sending out tendrils, called axons, up to several feet fro...cleavage to liberate this C-terminal piece that is sending a signal back to the cell body to die, said Goldstein. It certainly is an interesting clue and makes...Required activation 'cascade' identified for p53 tumor-suppressor protein
...r arresting the cycle until repairs can be made or sending the cell into apoptosis, or regulated cell death. When p53 is unable to perform this function, the frequent result is cancerous growth of the cell. Earlier work by Berger and others, including Wistar associate professor Thanos Halazonetis, D.D.S., Ph...Clamping down on a cancer-causing protein
...gs in the right places, and the molecule cant stop sending signals. The key thing that Superti-Furga and colleagues Helma Pluk and Karel Dorey have discovered is that the clamp lies in a part of the molecule quite distant from the machinery that actually transmits signals. Clinical trials are currently being...DNA arrays give clues to better vaccines
...acrophages respond to a broad range of bacteria by sending off an alarm to the rest of the immune system and transforming into a cell primed to mount an immune response. Further study revealed that the macrophage didnt have to "see" the whole bacteria to send off its alarm signal, but the presence of specifi...Study reveals new information on how viruses enter cells
...us, Rossmann says, serving as a "nerve center" and sending signals to and from the virus' head and tail fibers. While transmitting its messages, the baseplate also prepares the virus machinery to eject its DNA into the host cell. "A whole series of events are required to recognize, attach and confirm...New technology may benefit health care, bioterror defense
...ically it should act as a direct molecular sensor, sending a computer a signal telling us immediately the identity of the base it just read," Hardin says. "And thats something we just dont have now. This process would eliminate many time-consuming intermediary steps, and in addition, would require the use of...Newly indentified protein linked to cancer cell survival
...a protein that then binds to a receptor on itself, sending its own signal to its nucleus. "The cell could then fuel its own growth and survival without the checks and balances by the neighboring cells," Liang said. The next step will be to try to develop molecules to interrupt this autocrine loop, either by...Michigan State scientists identify chemical come-on of sea lamprey
...now that in the sea lamprey it is the male that is sending the active signal, instead of just being spied by the female. This is important." Li said evidence suggests that females are putting out chemical come-ons of their own to signal fertility, as well as chemicals to keep the males close to home. While ...Scientists discuss microbial pathogenesis in era of bioterrorism, drug resistance
...hese cells respond to a broad range of bacteria by sending off an alarm to the rest of the immune system. Further study revealed that the macrophage didn't have to "see" the whole bacteria to send off its alarm signal, but the presence of the specific bacterial components such as heat shock proteins induced...Hopkins scientists reveal how sound becomes electric
...hought previously only to communicate to nerves by sending a single packet of these chemical transmitters at a time. "Most cells in the brain normally move one packet to their edges, releasing a single dollop of transmitter that travels the short distance to the nerve," he says. "But hair cells deliver a dr...Protein complex found to regulate first step in human blood clotting
...lets that arrive at the wound, which change shape, sending out sticky arms into the blood flow to recruit other platelets that attach in an organized matrix to stop the bleeding and maintain the vessel. Stroke, which results from abnormal clotting, is treated with blood thinning compounds to block platelets ...Dogs key to understanding prostate cancer
...ssue as well as cancerous tissue - was capable of sending growth signals to bone. There are only two animals in all of nature that get prostate cancer, says Rosol, dogs and humans. Rosol says dogs and human have a lot in common. The canine prostate gland and its diseases are very similar to humans and ...Bandage could repair damaged tissues
...for life. These molecules interact with the cells, sending them signals that control their activities, growth and regeneration. But according to Kao, damage to the scaffolding could threaten cellular activity. Any bodily injury -- a cut, burn, fracture -- razes the molecular support for cells, thereby disrup...Fluid forces within the body help invasive bacteria
...ravel from the urinary tract to the kidney only by sending forth bacteria that swim freely against the urine flow until they land on a place to colonize. The new findings also have significant medical implications. For example, Urinary tract infection is the most common bacterial infection. It affects at l...Frozen 'lake' beneath Antarctica ideal to test sterile drilling techniques
...med. Even the sterilization procedure taken before sending the Voyager spacecraft to Mars were, in retrospect, insufficient to kill many microbes discovered in the intervening 25 years. "If microbes can exist in glacial ice on Earth, they can also exist in Martian permafrost and in certain regions of Jupiter...Transplantation Society Congress
...quested by calling Lisa Rossi at (412) 916-3315 or sending an e-mail to press@txmiami2002.com . Additional...ailable by calling Lisa Rossi at (412) 916-3315 or sending an e-mail to press@txmiami2002.com . Abstracts and the final program will soon be available at ww...New antibacterial coating may prolong contact lens life
...l inactivate the AIDS virus in culture. We're also sending some of this back to NIH [National Institutes of Health] and they're going to be testing it for us." He did not speculate when those test results would be available....UT Southwestern scientist explores caffeine-signaling activity in brain function
... use and electrical activity throughout the cells, sending signals along specific brain pathways. Bibb is a former Rockefeller University scientist who is continuing his research at UT Southwestern on the processes in the brain that control addiction and other neurological and psychiatric disorders. Much of ...Laboratory study explains clinical promise of anti-angiogenesis cancer drug
...etrathiomolybdate, or TM -- keeps tumor cells from sending signals that spur the formation of new blood vessels. By keeping copper low and blocking the NFkB signaling pathway, the researchers believe, TM blocks the angiogenesis, or blood-vessel creation, that lets cancer grow and spread. Angiogenesis is thou...