Immune System News and Research

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Second pathway behind HIV-associated immune system dysfunction identified

Researchers at the Partners AIDS Research Center at Massachusetts General Hospital (PARC-MGH) may have discovered a second molecular "switch" responsible for turning off the immune system's response against HIV.

1 Oct 2007

Residual fetal cells in women both detrimental and beneficial to women's health

Fetal cells that persist in a woman's body long after pregnancy – a common occurrence known in scientific circles as fetal microchimerism – in some cases may reduce the woman's risk of breast cancer, according to researchers at Fred Hutchinson Cancer Research Center.

1 Oct 2007

Inhaled ozone impairs the body's first line of defense

As policy makers debate what levels of ozone in the air are safe for humans to breathe, studies in mice are revealing that the inhaled pollutant impairs the body's first line of defense, making it more susceptible to subsequent foreign invaders, such as bacteria.

1 Oct 2007

microRNAs may be key to HIV's ability to hide, evade drugs

Tiny pieces of genetic material called microRNA (miRNA), better known for its roles in cancer, could be a key to unlocking the secrets of how HIV, the AIDS virus, evades detection, hiding in the immune system.

1 Oct 2007

H5N1 able to pass through placenta to fetus and infect organs other than lungs in adults

The H5N1 strain of the bird flu virus can pass through the placenta of pregnant women to the unborn fetus, and can infect organs other than the lungs in adults. These are the conclusions of authors of an Article in The Lancet.

1 Oct 2007

Occupational exposures in farming and industry may be linked to death from autoimmune disease

A new study examined the possible associations between occupation and the risk of dying from systemic autoimmune diseases and found that occupational exposures in farming and industry may be linked to higher death rates from these diseases.

29 Sep 2007

Potential new therapy for uveitis

An inflammatory eye condition that is one of the world's leading causes of blindness could be treated much more effectively and easily thanks to a new discovery here.

29 Sep 2007

Low birth weight children may be at a greater risk of stress-related health problems as adults

Findings from this study show that low birth weight (below the 10th percentile) can lead later in life to low concentrations of cortisol, a hormone that regulates stress response by adjusting blood pressure and blood sugar levels.

27 Sep 2007

How H5N1 virus works

H5N1 influenza, also known as avian influenza, is considered a major global threat to human health, with high fatality rates.

27 Sep 2007

Genetic sequence of Giardia complete

Giardia lamblia, one of the most common human parasites in the United States, causes more than 20,000 intestinal infections a year, often through contact with contaminated drinking or swimming water.

27 Sep 2007

Dietary fatty acids may help prevent diabetes

Omega-3 fatty acids have long been touted for their heart-healthy and brain-boosting benefits. Consider cod liver oil, fortified infant formula and enriched eggs.

27 Sep 2007

Researchers uncover likely source of rejection for otherwise well-matched kidney transplants

UT Southwestern Medical Center researchers, collaborating with colleagues in Germany, have for the first time identified antibodies associated with transplant rejection of otherwise healthy kidneys.

27 Sep 2007

Transposons could make for safer gene delivery system

To move a gene from point A to point B, scientists and gene therapists have two proven options: a virus, which can effectively ferry genes of interest into cells, and a plasmid, an engineered loop of DNA that can do the same thing, albeit usually only on a short-term basis.

27 Sep 2007

Relationship between stress and breast cancer

Women diagnosed with metastatic breast cancer who have also endured previous traumatic or stressful events see their cancer recur nearly twice as fast as other women, according to a report by a University of Rochester Medical Center scientist.

27 Sep 2007

Biologists link Huntington's disease to health benefits in young

For years researchers in neurology have believed that people with Huntington's disease have more children than the general population because of behavioral changes associated with the disease that lead to sexual promiscuity.

26 Sep 2007

Fluorescence resonance energy transfer technology shows how cancer may take hold

A team, led by researchers at the Carnegie Institution,* has found a key biochemical cycle that suppresses the immune response, thereby allowing cancer cells to multiply unabated.

26 Sep 2007

Manipulating immune response provides new approach to liver failure

If the results of the animal study can be applied in human patients, the approach may be able to keep patients alive until donor organs become available or to support liver function until the organ can regenerate itself, eliminating the need for a transplant.

25 Sep 2007

Discovery of structure in malaria with potential for a vaccine target

Researchers at the Swedish medical university Karolinska Institutet (KI) and the Swedish Institute for Infectious Disease Control (SMI) have identified the biochemical mechanism behind the adhesive protein that give rise to particularly serious malaria in children.

25 Sep 2007

Study helps determine best treatment for bladder cancer

Cancer specialists and researchers at Princess Margaret Hospital, University Health Network (UHN), are tackling an ongoing controversy about the best way to treat an aggressive form of bladder cancer – immediate radical surgery or a more conservative initial approach using immunotherapy?

25 Sep 2007