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Tag: "destroying" at biology news

Gut research yields new anti-cancer approach

...der the assumption that such drugs would be toxic, destroying microtubules in healthy cells as well as cancer cells," Schaefer said. "Our early studies, however, suggest that general toxicity does not rule out this approach as once feared. With new drug delivery technologies that help drugs target only cancer c...

Are we killing the world's oceans?

...on and sea levels in the centuries to come? Are we destroying the world's coral reefs? Why are dead zones in the oceans on the rise? Can aquaculture be environmentally sustainable? And how are we all to blame for the collapse of coastal fisheries? Most importantly, what can governments, industry and individual...

Notorious cancer gene may work by destroying messenger

...ound that PMR1 helps control protein production by destroying particular messenger RNAs (mRNAs), molecules that carry the information used to assemble a protein. That work showed that PMR1 attaches to the mRNAs and remains there as a silent passenger. If it receives the proper signal, however, the protein c...

Penn researchers replace organ in adult mice using 'single-parent' stem cells

...nn's New Bolton Center. "The fact that we are not destroying a viable embryo in the process also avoids certain ethical issues that currently surround embryonic stem cell science." McLaughlin and his colleagues report their findings in the Feb. 15 issue of the journal Genes & Development. "While prev...

Pregnancy hormone key to repairing nerve cell damage

... generate new ones during pregnancy. By chemically destroying myelin around nerve cells, the researchers found that pregnant mice had twice as much new myelin two weeks following the damage as virgin mice and that introducing prolactin mimicked the effects of pregnancy on myelin production and repair in mice th...

Nanoparticles for delivery of prostate cancer treatment

...nd destroy the blood vessels of solid tumors, thus destroying the tumors while leaving normal tissue unharmed. The technology uses a synthetic gene encoding an antibody-like molecule that activates an immune response to destroy the tumor blood vessels and associated tumors. Garen previously received gra...

MRSA toxin acquitted: Study clears suspected key to severe bacterial illness

... strains with PVL removed are equally effective at destroying human white blood cells--our primary defense against bacterial infections--and spreading disease. The findings, which appear online in The Journal of Infectious Diseases, are surprising because many scientists had presumed that CA-MRSA uses PVL to ta...

New approach to BSE successful in lab

...on proteins can be deposited in the brain, thereby destroying brain tissue. Prion diseases are always fatal, often, however, not until months after the outbreak of the disease. As yet there is no cure. In mice suffering from scrapie the pathogenic prion protein is known as PrP-Scr, whereas the normal variant...

Tearing down the fungal cell wall

... wall to the middle layer appears to be disturbed, destroying the cell wall's regular architecture and making the spores permeable to water. This has drastic effects on the viability of the spores." Kwang-Hyung Kim, doctoral student and the lead author on the paper, stated: "What we have been able to show is...

An AIDS-related virus tricks cells to become tumors, new Penn study finds

...ted nuclear antigen, or LANA, tricks the cell into destroying two major suppressors of tumor growth called von Hippel Lindau (VHL) and p53. "In addition, we have shown that when LANA expression was blocked, the tumor suppressors again become stable suggesting a direct role of the viral protein in regulation of ...

'Failed' experiment yields a biocontrol agent that doesn't trigger antibiotic resistance

...t led to the creation of a new biological tool for destroying bacterial pathogens - one that doesn't appear to t... over-replicating within the bacterium, ultimately destroying it. "And I thought, this is very cool!" recalls Filutowicz. "I didn't observe any survival or fur...

Technology exists to keep E. coli out of food

...be sprayed directly onto foods such as vegetables, destroying bacteria like the E. coli strain responsible for the spinach/green onion outbreaks. This system could be used from the farm to the retail market—for irrigation in fields, washing in processing plants and misting in grocery stores. "The results w...

Research holds promise for herpes vaccine

...rotein, ICP0, that tricks every infected cell into destroying its own armor. Once the cell's armor is gone, the virus can propagate itself and spread to other cells, which are in turn tricked into lowering their defenses. In his research, Halford created a vaccine where the genetic instructions that make ICP...

PNAS study reveals why organs fail following massive trauma

...unately, lymphocytes too are capable of mistakenly destroying human cells. Thus, they have developed quality control mechanisms where they can choose to stop expanding into an army (anergy) or to commit suicide (apoptosis). The PNAS study offers new evidence that an overwhelming wave of biochemical signals cr...

Blood transfusion-transmitted infections: A global perspective

...on technologies have been shown to be effective in destroying most bacteria, viruses and parasites in donated blood, but ineffective against the pathogens that cause neurodegenerative diseases and those viruses that are present in exceedingly high concentrations in blood. Newer technologies can also have a ...

Study defines effective microbicide design for HIV/AIDS prevention

...e effectiveness of various microbicidal recipes in destroying human immunodeficiency virus (HIV) before it reaches vulnerable body tissues. Using the tool, the researchers have determined that a thin, long-lasting coating of microbicide delivered to susceptible tissues in a woman's vagina can significantly re...

All the eggs in one basket

..."extremely unlikely." Their data point to hunting destroying 24 nesting sites of the two species of turtles, which also severely thinned turtle populations at the remaining sites. Impact on Ecosystems Besides the loss of the turtles themselves, sea turtles were also ecosystem engineers in the Caribbean, ...

C-myc required by the immune system

...d to be very sure that we are not going to be also destroying a vital role in a normal process such as the body's immune system." ...

Transgenic goat's milk offers hope for tackling children's intestinal disease

... milk. Lysozyme inhibits the growth of bacteria by destroying the bacterial cell wall, causing the contents of the cell to leak out. Because lysozyme limits the growth of bacteria that cause intestinal infections and diarrhea, and encourages the growth of beneficial intestinal bacteria, lysozyme is considered...

Combined treatment extends life expectancy for lung cancer patients

...cerous cells. While radiation is most effective in destroying cells around the edges of the tumor, it is less effective at targeting the center of the tumor, which tends to be a low-oxygen environment. Thermal ablation, on the other hand, heats the tumor to kill cancerous cells ?reaching the center of the tum...

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