News tagged with cd4 cells

Sperm may play leading role in spreading HIV

Sperm, and not just the fluid it bathes in, can transmit HIV to macrophages, T cells, and dendritic cells (DCs), report a team led by Ana Ceballos at the University of Buenos Aires in Argentina. By infecting ...

Oct 26, 2009
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Study offers insights into failed HIV-1 vaccine trial

Following the disbandment of the STEP trial to test the efficacy of the Merck HIV-1 vaccine candidate in 2007, the leading explanation for why the vaccine was ineffective - and may have even increased susceptibility to acquiring ...

Jul 20, 2009
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Scientists gain insight into HIV vaccine failure

A team of researchers from The Wistar Institute and the University of Pennsylvania reports new evidence refuting a popular hypothesis about the highly publicized failure in 2007 of the Merck STEP HIV vaccine study that cast ...

Jul 20, 2009
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Treating HIV earlier to decrease the risk of death

Begin treatment as early as possible: this general common sense rule seems to apply to most diseases except HIV-AIDS, which is only treated once a certain number of immune cells called "CD4+" cells have disappeared. The results ...

Apr 14, 2009
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Has HIV become more virulent?

Damage to patients' immune systems is happening sooner now than it did at the beginning of the HIV epidemic, suggesting the virus has become more virulent, according to a new study in the May 1, 2009 issue of Clinical In ...

Apr 07, 2009
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