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Thread: Semen ingredient is HIV carrier

  1. #1


    Semen ingredient is HIV carrier

    CHICAGO: An ingredient in human semen may actually help the HIV virus infect cells, German researchers said on Thursday.

    They said naturally occurring prostatic acidic phosphatase or PAP, an enzyme produced by the prostate, can form tiny fibres called amyloid fibrils that can capture bits of the human immunodeficiency virus and usher it into cells.

    Researchers at the University Clinic of Ulm were looking for factors in semen that might block infection with HIV-1, the most common strain of the virus that causes AIDS.

    Instead, they found one that enhanced transmission, in some experiments as much as 50-fold.

    "In this study we show that fragments of PAP, a highly abundant semen marker, forms amyloid fibrils that drastically enhance the infectiousness of HIV-1," they wrote in the journal Cell .

    They said they are now looking for compounds that might block this process to slow transmission of the disease.

    Amyloid fibrils formed from different proteins are associated with many diseases, including Alzheimer’s and prion disease.

    "Further studies on the role of amyloids in the transmission and pathogenesis of enveloped viruses are highly warranted," they wrote.

    HIV has infected some 60 million people, killing more than 20 million, the researchers said. More than 90% of those infections are acquired through sexual intercourse.

    Infection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells. The four major routes of transmission are unprotected sexual intercourse, contaminated needles, and transmission from an infected mother to her baby at birth, or through breast milk.

    Screening of blood products for HIV in the developed world has largely eliminated transmission through blood transfusions or infected blood products in these countries.

  2. #2
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    ..another way of preventing the Human immunodefiency virus is by males being circumstised...this method is now being carried out in africa which has helped alot...anyways informative post...

  3. #3
    informative post

  4. #4
    Yes... Agreed with both the above comments.

  5. #5

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