Pathogen News and Research

RSS

Researchers shed light on a key molecular switch in T helper cells

Defects in immune system cells called T helper cells may lead to diseases characterized by a faulty inflammatory response such as autoimmunity and asthma. Understanding the molecular steps involved in how T helper cells mature may help researchers develop treatments for these diseases.

17 Oct 2005

Antibody-dependent enhancement

Some viruses' ability to exploit the human body's own defenses to increase their replication may be both a blessing and curse, according to the findings of a study conducted by researchers at the Johns Hopkins Bloomberg School of Public Health.

16 Oct 2005

Possible links between biting aquatic insects, water quality and Buruli ulcer transmission

A tropical skin disease nicknamed "the sore that heals in vain" wreaks both physical and social mayhem - mostly on children - yet its transmission is a mystery, one an Michigan State University (MSU) researcher and his recent research associate hope to solve.

12 Oct 2005

Why the human immune system does not function well in the weightlessness of space

Researchers at the San Francisco VA Medical Center have identified a set of key immune-response genes that do not turn on in a weightless environment. The discovery is another clue in the effort to solve an almost 40-year-old mystery

12 Oct 2005

Vanadium may help prepare the body to recover speedily from infections

Dietary supplements containing vanadium are used by body builders to help beef up muscles and by some diabetic people to control blood sugar. New research now suggests the naturally occurring but easily toxic element may help prepare the body to recover speedily from infections from gram-negative organisms such as E. coli.

11 Oct 2005

Researchers gain insights into how malaria pathogen destroys the cells in which it resides

By specially tagging the outer and inner membranes of red blood cells infected with the malaria parasite and tracking the cellular changes that precede the cell bursting event that disperses parasites to other blood cells, a group of researchers has deepened our understanding of how the malaria pathogen destroys the cells in which it resides.

26 Sep 2005

Vaccine candidate? Researchers synthesize oligosaccharide from anthrax pathogen

For weeks a white powder caused fear and shock for the American population: a few days after the attacks on September 11th, 2001, four innocent people became the victims of letters that contained the powder - spores of the anthrax pathogen. German researchers have now synthesized a molecule characteristic of anthrax in the laboratory which may be the basis for a new anthrax vaccine.

26 Sep 2005

Researchers discover way to dramatically boost the output of immune system cells from the thymus

Mayo Clinic researchers have discovered a way to dramatically boost the output of immune system cells from the thymus, which may lead to improved cancer vaccines, as well as to ways to otherwise strengthen immune responses.

26 Sep 2005

Vical and NIH to evaluate enhanced-delivery HIV vaccine

Vical Incorporated today announced plans to develop and evaluate electroporation-enhanced delivery of therapeutic and preventive DNA vaccines against HIV

12 Sep 2005

Nuclear receptor proteins could change anti-inflammatory treatments

Several nuclear receptor proteins appear to overlap in their ability to exert anti-inflammatory effects, according to new research by scientists at the University of California, San Diego (UCSD).

12 Sep 2005

Macrophages kill bacteria - but not always

Macrophages are effective weapons used by our immune system to absorb and digest pathogenic intruders. Some bacteria, however, can subvert this defence mechanism and even multiply within the macrophages.

1 Sep 2005

Carbohydrate-based vaccine against cancer?

Couldn't we be immunized against cancer? This sounds like a dream, but is in fact a thoroughly realistic research goal. American researchers have now taken an important step forward in the development of a cancer vaccine.

29 Aug 2005

Previously unknown family of plague virulence factors identified

Researchers at Duke University Medical Center have identified a previously unknown family of virulence factors that make the bacterium responsible for the plague especially efficient at killing its host.

28 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

Research sets foundation for new generation of vaccines for HIV, influenza

Scientists have taken a major step toward the goal of altering viruses, bacteria and tumor cells so that they demand attention from immune cells designed to destroy them.

26 Jul 2005

Seventeen now dead from mystery disease in southwest China

The state media in China says that a mysterious disease has now killed 17 farm workers and left 41 others sick, in southwest China, after they handled sick or dead livestock.

25 Jul 2005

New design for HIV vaccine trials in animals

Emory University researchers have proposed a new design for HIV vaccine trials in animals that would more closely mimic how humans are exposed to the virus - potentially giving AIDS researchers a more effective tool in developing successful treatments to prevent HIV infection.

20 Jul 2005

Moraxella catarrhalis found to be responsible for 10 percent of exacerbations of COPD

A ubiquitous bacterial strain thought to be uninvolved in chronic obstructive pulmonary disease (COPD) in fact is responsible for 2-4 million flare-ups of the condition that occur annually in the United States, researchers from the University at Buffalo have shown.

20 Jul 2005

New way to fight antibiotic-resistant Staphylococcus infections

Researchers at the University of California, San Diego School of Medicine and Children’s Hospital and Health Center, San Diego have discovered that "Staph" bacteria use a protective golden armor to ward off the immune system, a finding with the potential to lead to new treatments for serious infections now increasingly resistant to standard antibiotics.

19 Jul 2005

Rapid new technique for detecting group A streptococcus

Cornell University scientists have developed a rapid, less costly and sensitive new technique for detecting group A streptococcus, the bacteria that cause scarlet fever. Details will be announced today at the Institute of Food Technologists Annual Meeting and Food Expo in New Orleans.

18 Jul 2005