immunity News and Research

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Novel hepatitis C-like virus discovered in dogs

In a study to be published online this week in the Proceedings of the National Academy of Sciences, researchers report the discovery of a novel hepatitis C-like virus in dogs. The identification and characterization of this virus gives scientists new insights into how hepatitis C in humans may have evolved and provides scientists renewed hope to develop a model system to study how it causes disease.

24 May 2011

Tumor necrosis factor can suppress inflammation, treat rheumatoid arthritis

A new study by rheumatologists at Hospital for Special Surgery in New York has shown that a powerful pro-inflammatory protein, tumor necrosis factor, can also suppress aspects of inflammation.

23 May 2011

Serpin-2 molecule may be a perfect target for preventing mosquito's immunity

Mosquitoes are becoming more resistant to current pesticides. That's troubling to Kansas State University biologist Kristin Michel, as it means malaria and other mosquito-borne diseases will continue spreading. A recent grant from the National Institutes of Health may change all that.

18 May 2011

Antiretrovirals important to protect HIV-positive children from measles

Scientific American looks at the possible link between HIV prevalence and a recent increase in the number of children dying from measles in sub-Saharan Africa. "Studies show that infants with HIV do not respond well to the measles vaccine even when given a second dose at nine months, as the World Health Organization currently recommends," the article notes.

17 May 2011

Lower education leads to faster ageing: Study

According scientists, people who leave education with fewer qualifications are prone to age more quickly. The research was published in the journal Brain, Behavior and Immunity on Wednesday.

15 May 2011

Gene manipulation can improve survival rates during sepsis infection

Sepsis is a major killer in hospital intensive care units. Researchers at Case Western Reserve University School of Medicine have found that manipulating a genetic factor that can launch or throttle the body's defenses can improve survival rates during bacterial infection.

13 May 2011

Salmonella enterica bacterium activates virulence genes through Fur protein

Salmonella enterica, one of the main causes of gastrointestinal infections, modulates its virulence gene expression, adapting it to each stage of the infection process, depending on the free iron concentration found in the intestinal epithelium of its host.

12 May 2011

Patients with pneumonia more likely to die if they have Vitamin D deficiency

A new study published in the journal Respirology reveals that adult patients admitted to the hospital with pneumonia are more likely to die if they have Vitamin D deficiency.

11 May 2011

New book explores the hidden world of viruses

"Carl Zimmer is one of the best science writers we have today. A Planet of Viruses is an important primer on the viruses living within and around all of us-sometimes funny, other times shocking, and always accessible. Whether discussing the common cold and flu, little-known viruses that attack bacteria or protect oceans, or the world's viral future as seen through our encounters with HIV or SARS, Zimmer's writing is lively, knowledgeable, and graced with poetic touches."-Rebecca Skloot, author of The Immortal Life of Henrietta Lacks.

7 May 2011

Latest research on HIV immunity can help develop vaccine

Latest insights into immunity to HIV could help to develop a vaccine to build antibodies' defences against the disease, a University of Melbourne, Australia study has found.

7 May 2011

Researchers find temperature-sensing protein in immune cells

Researchers at The Scripps Research Institute have found a temperature-sensing protein within immune cells that, when tripped, allows calcium to pour in and activate an immune response.

7 May 2011

Study offers means of activating T cells to fight disease without antigenic triggers

For much of the time our T cells-the white blood cells that act as the police of the immune system-are in what immunologists call a "quiescent state," a sort of standby mode. For years, scientists have wondered if quiescence occurred by default or whether T cells need to work at remaining silent.

6 May 2011

H. pylori DNA may help treat severe colitis

DNA from Helicobacter pylori, a common stomach bacteria, minimizes the effects of colitis in mice, according to a new study by University of Michigan Medical School scientists.

6 May 2011

UCF to develop safe, inexpensive and effective polio vaccine

An innovative way of making vaccines at the University of Central Florida has attracted the support of the Bill & Melinda Gates Foundation for its potential to make vaccines lessexpensive, more effective and needle free.

5 May 2011

Targeting mosquito larvae and not adults could worsen dengue epidemics, study says

Targeting only mosquito larvae and not adult insects in insecticide-based dengue control programs could increase mosquito resistance and decrease human immunity to the disease, particularly in urban areas, according to a study published online in the Lancet on Tuesday, Agence France-Presse reports.

5 May 2011

Marijuana licensing laws vetoed by Washington Governor

Current laws regarding marijuana have come under the scanner. US attorneys have warned states that those who are licensed to grow marijuana or even those who regulate it could be subjected to prosecution. Because of this, several states have begun to change their existing laws for medical marijuana.

4 May 2011

Asthma research on its way to help sufferers

The University of Newcastle is now conducting a nationwide research program to help people with asthma better control their condition. This study will be testing the effectiveness of combining antibiotics with commonly used treatments in asthmatics. This news comes today on the World Asthma Day. Statistics show that commonly prescribed treatments and medications do not relieve the symptoms for about 10 per cent of asthma patients. It's thought about 80% of people with the condition suffer numerous symptoms, yet 80% say they believe they have it under control.

3 May 2011

Hospitals can implement preventive measures to reduce measles outbreak

The U.S. measles vaccination program has been successful in eliminating endemic measles in the United States; yet this success has provided challenges that require ongoing vigilance for the rapid identification and response to measles cases in health care settings.

2 May 2011

ARVO announces 2011 award recipients in retinal research

The Association for Research in Vision and Ophthalmology is pleased to announce its 2011 ARVO Award recipients. These award recipients will be acknowledged at the ARVO 2011 Annual Meeting, May 1 - 5, in Fort Lauderdale, Fla.

2 May 2011

MedImmune abstracts on influenza and RSV to be presented at PAS meeting

MedImmune announced today it will present 11 abstracts at the Pediatric Academic Societies Meeting at the Colorado Convention Center in Denver, CO, April 30 - May 3, 2011.

2 May 2011