immunity News and Research

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Scientists identify a key regulator of DNA mutations

As a general rule, your DNA is not something you want rearranged. But there are exceptions - especially when it comes to fighting infections. Since the number of microbes in the world far surpasses the amount of human DNA dedicated to combat them, specialized cells in the immune system have adopted an ingenious, if potentially disastrous, strategy for making antibodies. These cells, called B lymphocytes, intentionally mutate their own DNA to ward off invaders they have never seen before.

9 Jun 2008

Role of breastfeeding in preventing infant death, HIV infection in developing countries

In many poor countries, mothers with HIV face a stark choice: to nurse their infants, and risk passing on HIV through their breast milk - or to formula feed, and deprive their infants of much of the natural immunity needed to protect against fatal diseases of early infancy. Now, two studies supported by the National Institutes of Health offer insights into preventing early death and HIV infection among breastfeeding infants of mothers with HIV in these countries.

5 Jun 2008

New grant to enable University of Rochester to increase HIV research by 25 percent

The University of Rochester today announced that the National Institutes of Health (NIH) has awarded a team of more than 50 researchers a five-year, $3.2 million grant.

4 Jun 2008

Celldex Therapeutics vaccine may double survival in patients with deadly brain tumors

A vaccine aimed at inducing immunity to the most common and deadly type of brain tumor may stave off recurrence and more than double survival in patients, according to a new study led by researchers in Duke's Preston Robert Tisch Brain Tumor Center.

2 Jun 2008

New multi-million pound study to find the cause of Type 1 diabetes

Juvenile Diabetes Research Foundation (JDRF) has awarded more than £3 million to fund a research centre that will investigate the causes of Type 1 diabetes - a condition that results from an immune attack on the body's insulin producing cells. The study, known as the JDRF Centre for Diabetes Genes, Autoimmunity and Prevention (D-GAP), aims to understand how and why Type 1 diabetes occurs, knowledge that may help develop future therapies with the aim of preventing the condition.

28 May 2008

Emergency measures employed to stop measles epidemic

Emergency measures are being adopted in Britain to tackle the escalating numbers of new measles cases.

22 May 2008

Tuberculosis not the only risk from new immunological drugs

A new survey cautions physicians that drugs commonly prescribed for patients suffering from immunological disorders such as rheumatoid arthritis and inflammatory bowel disease may carry risks of serious infections other than the known risk of tuberculosis. The survey published is in the June 1 issue of Clinical Infectious Diseases, currently available online.

20 May 2008

Shingles runs in the family

Shingles appears when the virus that causes chickenpox, varicella zoster, is reactivated in spinal nerves; most adults carry the varicella zoster virus, but only 10 percent to 30 percent develop shingles.

20 May 2008

First evidence of native dendritic cells in brain

In a finding that has the potential to change the way researchers think about the brain, scientists at Rockefeller University have found dendritic cells where they've never been seen before: among this organ's neurons and connective cells.

15 May 2008

The design of a vaccine against Leishmaniasis

The parasitology team at the "Severo Ochoa" Molecular biology centre (CSIC-UAM) has focused its research efforts on the search for a vaccine capable of activating immunity against the parasite that causes leishmaniasis.

7 May 2008

New discovery on role of vital protein that fights meningitus

A University of Leicester researcher has discovered how a protein in the blood - linked to defence against meningitis - plays a more vital role than previously understood in the body's immune defence system.

6 May 2008

New OPAL therapy presents simple, cost-effective method of treating HIV infection

Australian researchers have unveiled a new immunotherapy technique to help prevent the progression from HIV infection to AIDS. Details of the simple, cost-effective technique are published May 2nd in the open-access journal PLoS Pathogens.

2 May 2008

Regulatory T cells orchestrate reaction to a virus invasion

Just as fire engines arrive quickly at the scene to save people and property, the cells that fight viruses have to reach the site of an infection promptly to mount a protective response.

24 Apr 2008

Social networking, malaria and philanthropy partnership

Philanthropy just got easier and a lot more accessible to the public thanks to the social networking power of the Internet and a ground-breaking partnership between a young British entrepreneur, a global health think tank and an African medical research institute.

20 Apr 2008

Austrian scientists identify common mechanism underlying acute respiratory disease syndrome

The Spanish flu outbreak of 1918 killed between 30 and 50 million people. In the infected patients, the ultimate cause of death was acute respiratory distress syndrome (ARDS). This fatal condition is a massive reaction of the body during which the lung becomes severely damaged. ARDS can be induced by various bacterial and viral infections, but also by chemical agents.

17 Apr 2008

Southeast Asia the culprit in flu epidemics

According to the World Health Organisation (WHO) each year influenza epidemics are thought to infect between 5 and 15 per cent of the world's population.

17 Apr 2008

CDC issues measles travel warning for Israel

As Americans travel to Israel for the Jewish holiday of Passover, the Centers for Disease Control and Prevention advises all travelers to ensure they are protected from measles before departing, because of a measles outbreak in Israel.

16 Apr 2008

T-cell multiplication unexpectedly delayed after infection

In a surprising outcome that overturns the conventional wisdom on the body's immune response to infection, scientists at The Scripps Research Institute have shown that T cells do not begin proliferation until up to three days after infection.

11 Apr 2008

Hepatitis B virus triggers cell 'suicide' in patients with chronic infection

Scientists from UCL (University College London) have identified a key difference between people who can fight the Hepatitis B virus (HBV) off successfully and those who fail to do so - that a group of cells important in controlling the disease are triggered to 'commit suicide' in patients who are chronically infected.

9 Apr 2008

Anticipation of laughter reduces levels of stress hormones

In 2006 researchers investigating the interaction between the brain, behavior, and the immune system found that simply anticipating a mirthful laughter experience boosted health-protecting hormones.

8 Apr 2008