HIV and the Brain: Highlights of the Seventh Neuroscience of HIV Infection Meeting
Paris, for centuries a hotbed of cool reason, hosted a thought-provoking
assembly of neurologists at the seventh Neuroscience of HIV Infection
meeting on March 6-9. A report on the conference in the June issue of the
Journal of the International Association of Physicians in AIDS Care, features the following
highlights. The June issue also includes an interview with neurologist Justin C. McArthur of Johns Hopkins University, one of the plenary speakers at the Paris conference.
- Several key investigators concurred that the treatment of
HIV-neurocognitive disorders should be three-pronged: Attack the virus.
Attenuate the inflammation. Protect the neurons. So far, though, only the
first prong--antiretroviral therapy--is hitting home.
- One neuron-protecting therapy, with a vitamin E-like antioxidant labeled
OPC 14,117, passed muster in a 30-person placebo-controlled trial. There
were trends toward improved memory and motor speed in cognitively impaired
individuals who got the drug. But the study was too small to show
significant improvements.
- Oxandrolone, an anabolic steroid being tested for AIDS-related wasting
and myopathy, showed significant weight-sustaining activity in a small
placebo-controlled study. But it did not improve muscle strength at a dose
of 15 mg daily.
- A placebo-controlled trial of SNX-111, for relief of severe pain, is
recruiting 150 individuals with cancer or AIDS after pilot studies
demonstrated this synthetic peptide's effect in some people with
irremediable pain.
- In an interview with the Journal, Justin McArthur said that a trial of
nerve growth factor for neuropathic pain is just getting started. Current
treatments for neuropathy are symptomatic, he pointed out, but nerve growth
factor may be restorative.
- Two groups detailed evidence that a syndrome called minor cognitive motor
disorder precedes frank dementia in people with HIV and is a harbinger of
AIDS and shortened survival.
- Two Italian studies suggested that PCR of cerebrospinal fluid may be an
accurate and minimally invasive diagnostic procedure for several
HIV-associated neurologic conditions.
- The details of HIV neuropathogenesis continue to elude researchers. But
Leon Epstein of the University of Rochester noted that effective therapy
does not depend on a total understanding of pathogenesis. Clues that emerge
from ongoing study can point to potential remedies.
©1996, Medical Publications Corporation
.