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Does HBV infection induce acute cellular DNA damage?

Eukaryotic cells employ multiple strategies of checkpoint signaling and DNA repair mechanisms to monitor and repair damaged DNA.

11 Nov 2008

All stem cells are not created equal, explains expert

During the course of the Presidential campaign, Obama signaled his intention to reverse Bush's controversial limit on federal funding of embryonic stem cell research.

11 Nov 2008

Medicine, math and engineering combine to reveal how sepsis and less severe infections occur

It's a leading cause of death, but no one knows for sure how and why it happens. It's a major source of health care costs, adding days or weeks to the hospital stays and lost work time of millions of people. But no one fully understands how best to fight it.

11 Nov 2008

New report shows high Clostridium difficile infection rates in U.S. hospitals

Consumers Union called on hospitals today to take more aggressive steps to protect patients from Clostridium difficile (C.-diff.) infections in light of a new report showing that they are much more common than previous estimates had indicated. As the rate of hospital acquired C.-diff. infections has jumped in recent years, an increasing number of patients have developed antibiotic-resistant strains of the infection that are more difficult to treat and more deadly.

11 Nov 2008

Astragalus root plant chemical used to fight HIV

Like other kinds of cells, immune cells lose the ability to divide as they age because a part of their chromosomes known as a telomere becomes progressively shorter with cell division.

11 Nov 2008

Researchers aim to over-stress already taxed mantle cell lymphoma cells

Cancer cells are already stressed by the fast pace they require to grow and spread and scientists believe a little more stress just may kill them.

11 Nov 2008

New advances in diagnosis and treatment of allergic diseases

Researchers are presenting more than 450 abstracts on investigational findings in the diagnosis and treatment of allergic diseases at the ACAAI Annual Meeting in Seattle, Nov. 6-11. Following are highlights of some key studies in allergy-immunology.

11 Nov 2008

Protein called TIM-3 turns off HIV-fighting T cells

In HIV-infected patients the body's immune system is unable to fight off the virus.

11 Nov 2008

Epstein-Barr virus linked to inflammatory diseases of the mouth

Researchers at Oregon Health & Science University's School of Dentistry have found that a significant percentage of dental patients with the inflammatory diseases irreversible pulpitis and apical periodontitis also have the Epstein-Barr virus.

11 Nov 2008

Cells exhausted from fighting HIV infection can be rescued

Researchers at the University of Toronto and the University of California, San Francisco, have revealed new hope for HIV treatment with the discovery of a way to 'rescue' immune cells that are exhausted from fighting off HIV infection.

11 Nov 2008

New analysis of the mechanisms that drive evolution in viruses and bacteria

It sounds like a science fiction movie: A killer contagion threatens the Earth, but scientists save the day with a designer drug that forces the virus to mutate itself out of existence.

11 Nov 2008

Rheumatoid arthritis drugs too slow to stop damage

A study by New Zealand researchers has questioned the current treatment approaches for rheumatoid arthritis and say they may be too slow in controlling the start of the joint damage the disease causes.

10 Nov 2008

T-cell-based strategy for HIV-1 vaccines still viable option

The question of whether or not to continue to pursue the development of T-cell-based HIV-1 vaccines has been a source of controversy following last year's widely publicized failure of the field's most promising candidate, a vaccine developed by Merck known as V520.

10 Nov 2008

Scientists engineer immune cells to act as "bionic assassins" that see through HIV's many disguises

HIV is a master of disguise, able to rapidly change its identity and hide undetected in infected cells.

10 Nov 2008

Scientists engineer T cells to recognize HIV-1 strains that have evaded the immune system

The findings of the study, published online in the journal Nature Medicine, have important implications for developing new treatments for HIV, especially for patients with chronic infection who fail to respond to antiretroviral regimens.

10 Nov 2008

Advances in ophthalmology

The 2008 Joint Meeting of the American Academy of Ophthalmology (Academy) and European Society of Ophthalmology (SOE), the largest and most comprehensive ophthalmic educational meeting in the world, is in session November 8 to 11 at the Georgia World Congress Center, Atlanta.

10 Nov 2008