Immune System News and Research

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Natural killer cells help understand responses to bone marrow transplants

Scientists have discovered that a group of important immune system cells has a surprising resemblance to cinematic British superspy James Bond: the cells receive a "license" that allows them to unleash their most potent attacks on enemies.

4 Aug 2005

Containment of a Southeast Asian outbreak of avian influenza in humans may be possible

Though quick to caution about the many things that could go wrong, researchers say that it may be possible to contain a Southeast Asian outbreak of avian influenza in humans, buying precious time for the production of a vaccine.

3 Aug 2005

Study addresses critical GVHD complication - limitations of bone marrow transplants

Together with 16 other institutions in the United States, University of Minnesota researchers led the largest study to date in patients with leukemia and related disorders undergoing bone marrow transplantation from unrelated donors.

2 Aug 2005

Successful visceral leishmaniasis vaccine trial in dog

Visceral leishmaniasis, which is the most severe form of that group of diseases, affects 500 000 people in the world each year. It is caused by a protozoan, Leishmania infantum, transmitted by sand fly bites.

2 Aug 2005

Link between stress and the health of victims of crime

A new study conducted by researchers at the University of Adelaide will examine the link between stress and the health of victims of crime.

2 Aug 2005

HAART reduces AIDS rates by 86%

Highly active antiretroviral therapy (HAART) for HIV-infected individuals has reduced the rate of progression to AIDS or death by 86%, according to new research from Bristol University published in The Lancet.

2 Aug 2005

Potential new target for cannabis-derived drugs as a treatment of inflammatory bowel disease

Researchers investigating anecdotal evidence that cannabis relieves some of the symptoms of inflammatory bowel disease (IBD) have discovered a potential new target for cannabis-derived drugs for treatment of the disease.

2 Aug 2005

Living Cell Technologies announces results for treating Huntington's disease

Living Cell Technologies announced pre-clinical results today showing its brain protection product, NeurotrophinCell (NtCell) produces a marked reduction in the size of brain lesions in a Huntington's disease (HD) model.

2 Aug 2005

Discovery that oxidative stress from pollen is as important as antigen exposure could lead to new therapies

For a person with allergies or asthma, breathing in pollen can be a very bad thing. Within minutes of inhalation by someone sensitive to their effects, these tiny particles can trigger severe inflammation of the respiratory passages, producing uncontrollable sneezing, coughing, or extreme shortness of breath -- symptoms agonizingly familiar to those who suffer from allergy and asthma attacks.

1 Aug 2005

Inhibitors of cellular enzymes could be developed for SARS treatment

Researchers from the University of Pennsylvania School of Medicine have found that inhibitors of an enzyme called cathepsin L prevent the SARS (severe acute respiratory syndrome) virus from entering target cells. SARS is caused by an emergent coronavirus. There is no effective treatment at this time.

1 Aug 2005

New understanding of cell movement may yield ways to brake cancer's spread

From birth until death, our cells migrate: nerve cells make their vital connections, embryonic cells move to the proper places to form organs, immune cells zero in to destroy pathogenic organisms, and cancer cells metastasize, spreading deadly disease through the body. Scientists studying these migrations didn't know how cells determined where to go. Until now.

1 Aug 2005

New recommendations can help medical arms of the military meet their mission

As reported last December in the New England Journal of Medicine, the U.S. military's on-the-ground surgical strategy now aims at "damage control, not definitive repair, unless it can be done quickly."

1 Aug 2005

Cannabis drugs may benefit those with bowel disease

UK scientists say they believe that patients with inflammatory bowel disease may benefit from cannabis-based drugs.

1 Aug 2005

Heparinase I is not a suitable replacement for protamine

The results of an international clinical trial led by Duke University Medical Center researchers has shown that a new drug is not a suitable replacement for protamine, a drug that has been used for more than 40 years after coronary artery bypass surgery to return thinned blood to its normal state.

1 Aug 2005

Pseudomonas aeruginosa has broken the immune system's code

The human opportunistic pathogen, Pseudomonas aeruginosa, has broken the immune system's code, report researchers from the University of Chicago, enabling the bacteria to recognize when its host is most vulnerable and to launch an attack before the weakened host can muster its defenses.

1 Aug 2005

Two studies reveal how plague disables immune system

Two studies by researchers at the University of Chicago show how the bacteria that cause the plague manage to outsmart the immune system and how, by slightly altering one of the microbe's tools, the researchers produced what may be the first safe and effective vaccine.

1 Aug 2005

Stress delays wound healing

Wound healing is slow when an animal is stressed, but extra oxygen almost completely reverses the effect, according to researchers at the University of Illinois at Chicago.

28 Jul 2005

Anti-inflammatory function of Alzheimer's disease drugs revealed

The mechanism in anti-Alzheimer's disease drugs that inhibits the production of a destructive, inflammation-causing protein in the brain has been revealed by researchers at the Hebrew university of Jerusalem.

28 Jul 2005

Echinacea little use in relieving colds

According to a new study by the University of Virginia School of Medicine, taking the the herbal remedy Echinacea, to relieve the symptoms of the common cold, is a waste of time and offers no more relief than a placebo.

28 Jul 2005

Carbon monoxide could turn out to be a life-saver for patients recovering from organ transplants

Carbon monoxide, a poisonous gas that kills thousands of Americans every year, could turn out to be a life-saver for patients recovering from organ transplants, strokes or heart attacks, according to new research from the University of Michigan Cardiovascular Center.

28 Jul 2005