HIV-related brain problems are studied

Apr 27, 2006

Scripps Research Institute scientists have shed new light on the molecular basis of brain function problems associated with immune deficiency viruses.

The La Jolla, Calif., researchers used viruses similar to the HIV, or human immunodeficiency virus, the cause of acquired immune deficiency syndrome, or AIDS. They said their findings may ultimately lead to new therapeutic interventions to prevent or reverse nervous system disorders in HIV-infected individuals.

Using multi-disciplinary analysis -- including cognitive, neurophysiologic, virologic, and molecular techniques -- the team found both a low-level viral infection in the brain as well as immune cells that had infiltrated the brain in order to protect against the virus.

"As in the rest of the body, in the brain immune cells achieve a level of control of the virus, but are unable to clear the infection," said lead author Howard Fox, an associate professor at Scripps Research and director of Scripps NeuroAIDS Preclinical Studies Center. "Over the long-term, this immune response may act as a double-edged sword, protecting against rampant viral replication in the brain, but leading to brain dysfunction."

The study appears in the Journal of Neuroscience.

Copyright 2006 by United Press International

Explore further: Study IDs risk factors for severe hidradenitis suppurativa

add to favorites email to friend print save as pdf

Related Stories

Scientists create vaccine against heroin high

Jul 20, 2011

Researchers at The Scripps Research Institute have developed a highly successful vaccine against a heroin high and have proven its therapeutic potential in animal models.

Scientists find measles' natural nemesis

Jan 20, 2011

Scientists at The Scripps Research Institute have found that a known enzyme in cells protects against measles virus, likely by altering the virus's genetic material, RNA. Cells lacking the enzyme become highly vulnerable ...

Recommended for you

How the world is underestimating Ebola: WHO

1 hour ago

The Ebola epidemic tearing through western Africa is by far the deadliest known outbreak of the disease, yet the magnitude of the spread is believed to be severely underestimated.

Last Ebola-free region of Liberia falls to virus

1 hour ago

Every region of Liberia has now been hit by Ebola, officials said Friday, as the World Health Organization warned the fight against the worst-ever outbreak of the killer disease would take months.

Endogenous hormones improve breast cancer risk models

11 hours ago

(HealthDay)—Inclusion of endogenous hormones in prediction models improves prediction of invasive breast cancer risk in postmenopausal women, according to a study published online Aug. 18 in the Journal of ...

With kids in school, parents can work out

12 hours ago

(HealthDay)—Back-to-school time provides an opportunity for parents to develop an exercise plan that fits into the family schedules, an expert suggests.

User comments : 0