attacks 2 2

Tag: "attacks" at biology news

Pregnancy hormone key to repairing nerve cell damage

...erative disease where the body's own immune system attacks the myelin surrounding nerves, leading to progressive loss of sensation and movement. MS affects approximately 2.5 million people worldwide and Canadians have one of the highest rates of the disease in the world. "It is thought that during pregnan...

FDA causes unnecessary scare about common painkillers

...ere not associated with an increased risk of heart attacks compared to a placebo, or an inactive pill. On .... "Naproxen does not increase the risk of heart attacks and ought to be a painkiller of choice," said Furberg. "On the other hand, Voltaren carries the same...

Protein therapy may reduce infarct size in heart attack patients

...rdiovascular Angiography and Interventions. Heart attacks are caused by blockages in the coronary artery preventing blood flow to the heart muscle. Restoring blood flow to the heart improves clinical outcomes in heart attack patients, but there remains significant injury to heart muscle cells. Protein kin...

Widely used hepatitis B drug spurs HIV drug resistance

...patitis B first," she adds. Hepatitis B infection attacks the liver and can lead to cirrhosis, liver cancer or even death from liver failure. Entecavir, first marketed in March 2005, has been a leading treatment for chronic forms of hepatitis B, which can be fatal to almost a quarter of those infected if...

How fish mend a broken heart

...h, the cardiac damage and scarring caused by heart attacks is a major killer among humans, making "the inability to replace damaged cardiac muscle one of the most prominent regenerative failures of mammals," wrote Alexandra Lepilina and Ashley Coon, the study's first authors. However, mammalian hearts have...

Researchers seek to design first treatment for neuroAIDS

...with the human immunodeficiency virus (HIV), which attacks immune cells and leaves patients vulnerable to infection. Before the arrival of modern antiviral therapies in 1996, HIV also had a devastating effect on the brain known as HIV-associated dementia (HAD) or neuroAIDs. The current, standard combination ...

Heart smart: new drug improves blood flow

...ut any apparent risk factors have unexpected heart attacks and strokes. We need a revolution in vascular diagnosis, treatment and prevention. This discovery is an important step along the way." ...

Road-crossing in chimpanzees: A risky business

...t adult male monkeys reduce the risks of predatory attacks through adaptive spatial patterning, moving toward the front of the group when traveling toward potentially unsafe areas, such as waterholes, and bringing up the rear when retreating, but comparable data on great-ape progression orders have been lack...

New drug blocks influenza, including bird flu virus

... seems to work in an entirely different way. "It attacks a completely different part of the virus life cycle," explains Curtis R. Brandt, a co-author of the study and a UW-Madison professor of medical microbiology and immunology and of ophthalmology and visual sciences. "The virus can't even get into the c...

Archerfish tune their shots to universal properties of prey adhesion

... any given size of prey, the archerfish tune their attacks such that prey are hit with about ten times the force that adhesive organs of animals of that size could sustain. The new work also revealed that the archerfish's hunting technique is metabolically costly and that the fish tune the force of their...

'Erectile dysfunction' drugs heighten natural anti-cancer activity

...hidden from white blood cells (T-cells) that mount attacks on tumors. These NO-producing cells, a.k.a. myeloid-derived suppressor cells (MDSCs), normally use nitric oxide to help bring the immune system back down to surveillance levels after an "attack mode" response to foreign material. The impotence...

Protein splicing upsets the DNA colinearity paradigm

...uction by the immune system. The immune system attacks 'foreign' cells - be they tumor cells, virally infected, or donated by another person - when T lymphocytes recognize antigenic peptides displayed on the cell surface. The antigens are created by 'proteasomes,' components of the cell machinery that cu...

Air travel and flu: Post-9/11 restrictions delayed start of season

...ights were restricted following the 9/11 terrorist attacks in 2001, the flu season started about two weeks later than usual. In both the northern and southern hemispheres, influenza epidemics occur annually during the winter flu season. Given the concerns about global epidemics of serious strains of flu, su...

UCSD researchers create roadmap to integrin activation

...leeding and to the thrombosis that occurs in heart attacks and strokes. Their work to take apart and re-build the signaling pathway that regulates activation of the body's most abundant platelet receptor, an integrin called glycoprotein (GP) IIb-IIIa, provides a powerful and flexible tool for studying ther...

Holiday gluttony can spell disaster for undiagnosed diabetics

... diabetes diagnosis. Type 1 : The immune system attacks insulin-producing beta cells in the pancreas, requiring insulin to survive. This typically affects children. Type 2: The body can't efficiently use its own insulin and insulin production can't keep up with the high demand, so glucose builds up in...

Proteins anchor memories in our brain

... antigens, normally are purged to avoid autoimmune attacks in the body later on. The new research showed that...in preclinical studies to see if T cell autoimmune attacks on IRBP can be modulated to prevent the autoimmune eye disease. ...

Quality not quantity important for immune response to HIV

...T cell, the cytotoxic T cell (CTC), recognises and attacks infected HTCs. It was previously thought that the bigger the CTC response, the more effective it would be. It is this dogma that has influenced development of HIV vaccines, with the vaccines attempting to stimulate a large response. However, Profe...

Autoimmune disease triggered if T cells miss a single protein early on

... antigens, normally are purged to avoid autoimmune attacks in the body later on. The new research showed that...in preclinical studies to see if T cell autoimmune attacks on IRBP can be modulated to prevent the autoimmune eye disease. ...

Study finds the air rich with bacteria

...ves of microbes that could be used in bioterrorist attacks -- although many of these relatives are harmless. "Before this study, no one had a sense of the diversity of the microbes in the air," says lead author Gary Andersen of Berkeley Lab's Earth Sciences Division. The research, which will be publis...

A wolf in sheep's clothing: Plague bacteria reveal one of their virulence tricks

...mal structure. One of these proteins, called YpkA, attacks a cell's internal skeleton. Now, a study published by Rockefeller University researchers in the most recent issue of Cell shows exactly how YpkA does this, proving the protein's mechanism from the atomic to the organismal level and providing a potent...

1 2 3 4 5 6 7