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Tag: "failure" at biology news

Scientists look to the Bahamas as a model for coral reef conservation

...ponsible for some of the things we see such as the failure of the immune system to act appropriately?" he asked. The only answer to date is: "It's complicated." Instead of a persistent infection, some people get very ill from organisms such as Salmonella, H. pylori, tuberculosis and meningitis. How the immu...

New drug could reduce tissue damage after heart attack

...have a large scar, patients go on to develop heart failure which is eventually fatal. Reducing the immediate damage is thus critically important. "We had previously invented a new mechanism of drug action for small molecules bound by target proteins. Coupled with knowledge of the structure and properties ...

'Uniquely human' component of language found in gregarious birds

...udy I was not convinced of the significance of the failure of the monkeys," said Howard Nusbaum, chairman and professor of psychology at the University of Chicago and senior author of the Nature study. "There are many ways for an experiment to fail and most failures are not scientifically interesting. I im...

Fruit fly's beating heart helps identify human heart disease genes

...humans. This condition is often the cause of heart failure in humans and is characterized by heart muscle tha... of the gene or a mutated version results in heart failure in the fly," Wolf explained. "With this new model, we can rapidly correlate abnormal heart functioni...

For one Stanford doctor, the beat goes on during open-heart surgery

...n complications such as blood loss, stroke, kidney failure and irregular heart beats were considered, beating-heart surgery had a definite advantage over conventional bypass. "Beating-heart surgery is an advance in cardiac surgery because it provides a better result for patients," said John Puskas, chief of...

Stem cell study for patients with heart attack damage seeks to regenerate heart muscle

...ment for the study is two years. Congestive heart failure is a common outcome in heart attack patients and is the number one cause of disability in the United States. ...

Scientists discover that widely available drug also helps fight kidney disease

...t eventually debilitate the kidney, causing kidney failure in half of all patients by the time they reach age 50. Currently no treatment exists to prevent or slow cyst formation, and most ADPKD patients require kidney transplants or life-long dialysis for survival, explained Thomas Weimbs, director of the l...

Spousal illness can trigger partner death

...rease 13 percent increase Congestive heart failure 12 percent increase 15 percent increase Stroke 6 percent increase 5 percent increase Ischemic heart disease 5 percent increase no effect Sepsis 9 percent increase no effect Pneumonia 6 percent increase 6 pe...

Weizmann Institute suggests that immune cells help to maintain cognition and brain cell renewal

...ce there was perceived as an outcome of the body's failure to eliminate them. But Schwartz's group showed that these autoimmune cells have the potential ability ?if their levels are controlled ?to fight off debilitating degenerative conditions that can afflict the CNS, such as Alzheimer's and Parkinson's di...

UF researchers develop ways to keep the bloom on the rose

...diately below the flower that leads to wilting and failure of the flower to open. Bent neck typically occurs in the first three days after purchase. "Generally, this problem has been greatly reduced due to use of improved handling procedures from grower to consumer and better rose varieties developed by ros...

New insights into neural tube defects

...aneous abortion. One cause of these defects is the failure of cells within the neural tube to migrate to the middle of the developing neural tube. A study in this week's issue of Nature is the first to report on the molecular mechanism that directs cells to migrate to the correct local within the develop...

St. Jude projects 90 percent cure rate for ALL

...that has enabled us to determine whether treatment failure is due to resistance of leukemic cells to drugs, or merely due to the use of inadequate doses of those agents," Evans said. "By having the tools to precisely assess the risk of relapse in a specific patient, we can design the most effective treatment...

Unraveling the mysteries of poison

...many other diseases connected to potassium channel failure (Nature, April 13, 2006). Our body's cells have membranes, and "ion channels" are embedded in them. Ion channels are special proteins which let only certain ions through the membrane. The channels build an electro-chemical gradient, allowing nerve a...

Computer simulation hints at new HIV drug target

... HIV contained mutations that are often seen after failure of treatment with protease inhibitors, drugs that ...s, V82F, is common, and it can emerge early during failure of therapy with most protease inhibitors. The other mutation, I84V, is frequently found after prolon...

Major WHO study concludes calcium supplements can reduce complications during pregnancy

... HIV contained mutations that are often seen after failure of treatment with protease inhibitors, drugs that ...s, V82F, is common, and it can emerge early during failure of therapy with most protease inhibitors. The other mutation, I84V, is frequently found after prolon...

Drug resistance may travel same path as quorum sensing

...ess, known as multidrug resistance, results in the failure to cure the bacterial disease. Even worse, the resistance is not just to one drug, but many because the pump is now increased and many different drugs will be pumped out. "It compounds the problem," said Zechiedrich. Her findings are a step toward ...

Cyclosporine inhibits hepatitis C virus in vitro

... accelerated rate of disease progression and graft failure after liver transplantation in HCV patients," the authors conclude, "it will be very important to determine the ideal immunosuppression regimen." ...

Epstein-Barr virus may be associated with multiple sclerosis

... a broad role in predisposing to autoimmunity," or failure of the immune system to recognize the body's own tissues, the authors conclude. "A fine understanding of the mechanisms that connect Epstein-Barr virus infection to MS is important because it will provide the basis for the translation of this epidem...

Big hips, big belly? It's in your genes, Joslin-led study shows

... a broad role in predisposing to autoimmunity," or failure of the immune system to recognize the body's own tissues, the authors conclude. "A fine understanding of the mechanisms that connect Epstein-Barr virus infection to MS is important because it will provide the basis for the translation of this epidem...

Use of amino acid supplement following a heart attack provides no benefit, may be harmful

...fits for patients with hypertension, angina, heart failure and sexual dysfunction, according to background information in the article. Prior studies suggest that L-arginine has the potential to reduce vascular (blood vessel) stiffness. Steven P. Schulman, M.D., of Johns Hopkins Medical Institutions, Baltimo...

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