Tag: "attack" at biology news

Cancer vaccine based on pathogenic listeria bacteria shows promise targeting metastases

...gens are like a red flag to a bull -- they draw an attack from cells of the immune system -- but the strengt...necrosis factor, as well as activated T-cells that attack and kill the tumor, Portnoy said. "Listeria is the best bug so far to induce that response. With lis...

Cardiac arrest may hinder ability to learn certain tasks

...y and navigation. A lack of oxygen during a severe attack one where the victim stops breathing can either ...ervous system. The neurons that do survive a heart attack may undergo major structural changes that can affect learning, memory and other behaviors, said Cour...

New fossil sheds light on old mystery

... movement toward it not only alerts the prey of an attack but also creates a pressure wave that could push the prey away. Fish and some turtles combat these factors with suction feeding, i.e., pulling the prey into their months by rapidly expanding the mouth cavity. Crocodiles and alligators use a different...

Scientists discover potential new way to control drug-resistant bacteria

...rapidly evolve new variants that can recognize and attack bacteria that may have become resistant to the previous phage. "Phage therapy has been practiced for nearly a hundred years in parts of the world, and even in the United States in the first half of the 20th century," says Dr. Miller. "But now we t...

AAAS expert panel calls for voter-system research and reform

...computer technology has comeunder recent sustained attack because most suchsystems leave no paper trail to verify the finalcount. Last year, computer scientists at RiceUniversity and Johns Hopkins University reportedsignificant security flaws in Diebold Inc.'sAccuVote-TS electronic voting system. Just lastw...

Understanding celiac disease

...ide significant new details about why immune cells attack the body's own healthy tissues in response to a ha...ells that are simultaneously stimulated by IL15 to attack the intestinal tissue. The authors also suggest that controlling this process may help protect the i...

Zoonotic diseases - European scientists unite to fight diseases

...the critical mass of European scientists needed to attack the problems caused by zoonotic disease. The institute is financed by the EU and will cost 14.4m over 5 years. Zoonotic diseases, caused by bacteria, viruses and parasites, are naturally transmitted from animals to man and each year cause 14m death...

IBD (Crohn's/ulcerative colitis) conference adds 18 speakers; APS meeting starts Thursday

... Broad range of topics reflects comprehensive attack on IBD Three speakers have been added to each of the six symposia on topics ranging from "new therapeutic strategies in the treatment of IBD" to the "role of the immune system in IBD." (See complete schedule, below.) Grisham said th...

Common cold virus can cause polio in mice when injected into muscles

... injection site may cause a harmless cold virus to attack the central nervous system." Gromeier's team is now collaborating with the Centers for Disease Control to test numerous Coxsackievirus samples from patients around the world. Their goal is to determine which genetic features of the Coxsackievirus ind...

Long-term effects of carbon monoxide poisoning are an autoimmune reaction

...s, triggered to eliminate altered MBP, continue to attack normal MBP. Specifically, the researchers found that by-products of CO metabolism in the brain alter the charge and structure of MBP. "These changes in MBP have also been demonstrated in multiple sclerosis, which is why we paralleled the study alon...

New imaging technology at Joslin shown to detect early signs of type 1 diabetes

...ch the body's immune system mistakenly launches an attack on the insulin-producing beta cells of the pancreatic islets. This process may eventually destroy the beta cells, preventing them from producing sufficient insulin, so that high blood-glucose levels--and full-blown diabetes--develop. Early in this ...

Scientists fear new Ebola outbreak may explain sudden gorilla disappearance

...d as quiet, and peaceful animals that almost never attack unless provoked. The relatively intact forests of Western Equatorial Africa are regarded as the last strongholds of African apes. Gabon and the Congo hold 80 percent of the world's gorillas and most of the Central African chimpanzees. The population...

Images reveal how rotavirus - leading cause of diarrhea - enters cells

...luster to form a rigid spike, priming the virus to attack the cell and positioning the spike "head" to bind to the surface of the target cell. Then, in a second rearrangement, the spikes fold back, and VP4 takes on a folded-umbrella structure with three "panels." Dormitzer and colleagues speculate that this...

Virus known for its photo ops makes its movie screen debut

...t we've done - stop the virus at two points in its attack on E. coli and examine the difference." Scientists speculate that viruses are a key player in the evolutionary process on planet Earth. Far from being mere purveyors of disease, the viral infection process also could be partly responsible for spread...

Embryonic stem cell therapy shows steady benefits in rebuilding infarcted heart

...abilitating the injured heart itself after a heart attack (myocardial infarction). The regenerative potential of stem cells in relation to the muscle layer of the heart wall (or myocardium) has been recently recognized, but how this might translate into therapeutic uses to repair the heart has been limited....

Protective gene may enhance vaccine responses

...nity for that particular invader multiply rapidly, attack and eliminate infected cells. Once the infection is cleared, however, 90 to 95 percent of those T cells die off, a process called contraction. The five percent or so that survive are known as memory T cells. If a similar infection recurs, these ex...

Rutgers-Newark biologist links presence of protein to spread of cancerous cells

... more targeted pharmacological approaches that can attack unhealthy dividing cells while leaving the healthy ones intact. Rho proteins serve as a regulator with the ability to turn on or activate other proteins, including myosin II, a motor protein instrumental in taking energy and converting it to movement...

Increasing international insect threat to stored food

...nimal products. Insects are widely known to attack not just stored grains but wool carpets, corks in wine bottles, dried fish, chocolate, savoury biscuits, dog biscuits, dried baby food, cakes, paper, clothing, hides and skins. "A box of chocolates containing a single moth larva is worse than ...

Outcome for acute lymphoblastic leukemia linked to gene expression patterns

...ws physicians to use multiple anti-cancer drugs to attack different biochemical functions simultaneously. ...

New discovery may help transplants survive

...ein to T Cells, which then custom design an immune attack to destroy the invader. In previous work, Dana and his team found that removing the lymph nodes that drain the eyes prevented rejection of transplants that were vulnerable. They also found that VEGFR-3, known to cause the growth of lymphatic vessels...

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