Purdue scientists treat cancer with RNA nanotechnology
...ch as siRNA or ribozymes, could be put together to kill cancer, but the main obstacle has been finding the delivery method that can bring them to specific cells simultaneously," Guo said. "Nanotechnology is beginning to pay off here in that it may have provided us with a solution to the problem. We hope t...Alcoholics have a greater chance of infection following cardiac surgery
...sion with beta-blockers to feel better, or you may kill yourself with them in an act of suicide it's all a matter of dose. Researchers recommend a low dose of alcohol, such as one glass of red wine per day, to prevent myocardial infarction but three bottles of beer per day has been proven to harm the b...LIAI scientists make major finding on potential smallpox treatment
...e H3 protein is a major target for antibodies that kill the virus," he said. No actual smallpox virus was used in the studies in order to avoid any potential danger of transmission. Dr. Crotty made the findings by studying blood samples from people who had received the smallpox vaccine. "We used new t...Researchers discover how compounds prevent viruses from entering cells
...ov/new/releases/defensins.cfm .) "Defensins do not kill the virus, they just prevent it from entering the cell," Dr. Chernomordik said. "Viruses that are not allowed to enter the cells can then be destroyed by the cells of the immune system." Dr. Chernomordik and his colleagues also studied the activity ...Columbia scientists develop cancer terminator viruses
...he infection caused by the virus was sufficient to kill the primary tumor, a second weapon added to the vi...the major hurdles of gene therapy: its tendency to kill normal cells in the process of eradicating cancer cells. The virus eradicated prostate cancer cells...Understanding IGF-1: Jefferson researcher sees drug potential in targeting enzyme
...various small molecules made to the IGF-1 receptor kill cancer cells without toxicity, he notes. "The ge...thing that knocks out the IGF-1 receptor, you will kill the cancer cells and have only a modest effect on normal cells at least using cells in culture and ...Hanging baskets of sex and death help fruit growers
... fruit orchards as a weapon to spread a virus to kill that very same pest. The device allows growers to...ng basket style dispenser full of a virus known to kill the larvae of codling moth. The dispenser is designed to protect the virus from the elements and als...How to avoid severe climate change discussed at CO2 conference
...ials of marine organisms. This ocean acidity could kill off entire species, including those vital to the bottom of the planet's food chain. Caldeira emphasizes that "to find comparable events in Earth history, we need to look back tens of millions of years to rare catastrophic events." He called on inte...Ants, not evil spirits, create devil's gardens in the Amazon rainforest, study finds
...hat D. hirsuta trees release toxic secretions that kill competing plants--a process botanists call allelopathy. Others argue that devil's garden ants are responsible for controlling vegetation, either by extensive pruning or poisoning. "The idea is that by killing other plants, the insects create a space ...Bleach found to neutralize mold allergens
...d bleach. "It has long been known that bleach can kill mold. However, dead mold may remain allergenic," said lead author John Martyny, Ph.D., associate professor of medicine at National Jewish. "We found that, under laboratory conditions, treating mold with bleach lowered allergic reactions to the mold i...Structures of marine toxins provide insight into their effectiveness as cancer drugs
...nchpins in these long chains or cap their ends and kill cancer cells. Moreover, initial work shows that even a low dose of these toxins can bring a significant response." Prior to the study published in PNAS, it was known that the marine toxins affect several forms of cancer - but not how they worked, s...Frog peptides block HIV in lab study
...g the T cells. The peptides appear to selectively kill the virus, perhaps by inserting themselves into th...ntinuing quest to understand how the frog peptides kill HIV in dendritic cells. Their plans include imaging how the peptides work, screening additional frog...Neural stem cells are long-lived
...rtant experiment, because by giving AraC, we could kill all the cells that were actively dividing for a week," said Joyner. "And since the quiescent cells only divide every couple of weeks, they were spared." The researchers' observations revealed that the quiescent cells did, indeed, respond to Shh signa......en delivers a dose of pesticide 4-5 hours later to kill the newly defenceless insect. The technique uses piperonyl butoxide (PBO), a chemical derived originally from the sassafras tree and used for many years in laboratories to enhance the effectiveness of other chemicals. The PBO binds to the enzyme that...Bugs expose underground carbon traffic system 10 times more important than fossil fuel burning
...re then filled with soil which was frozen -80oC to kill any other insects/microfauna and inserted into experimental grassland to enable colonization by AM fungi from the surrounding plants. Twenty mites from the order Collembola, which would view the AM mycelia as food stuff, were introduced to half of t...Double trouble: Cells with duplicate genomes can trigger tumors
...ferent from normal cells, cancer drugs designed to kill them while sparing normal cells are "an interesting possibility," says Pellman, who is also an associate professor of Pediatrics at Harvard Medical School. The researchers treated normal breast cells with a compound that interfered with the final ste...Seaweed yields new compounds with pharmaceutical potential
...of these natural compounds showed the potential to kill cancer cells, bacteria and the HIV virus, accordin...er the concentrations of the compounds required to kill the bacterium would be harmful to humans. The compound that was isolated in the greatest abundance -...New class of antibiotics effective against drug-resistant bacteria discovered in fungi
... and by the skin and mucous membranes, in order to kill microbes before they invade protective barriers. Researchers believe that fungi have a similar system of defense, especially since these plant-like organisms live off rotting matter, said Zasloff. "They must compete with other organisms, like bacter...University of Delaware researchers develop cancer 'nanobomb'
... might be possible to use the microscopic bombs to kill cancer cells. They recreated the explosions in sol... cancer cells. Once the nanobombs are exploded and kill cancer cells, macrophages can effectively clear the cell debris and the exploded nanotube along with......he cholera bacteria. While traditional antibiotics kill bacteria outright by interfering with processes essential for their survival, the new agent blocks production of bacterial proteins that cause the severe diarrhea associated with Vibrio cholerae infection. "What we have done is made a custom, organi...