Circumcision and HIV: Difference between revisions

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Recent circumcision studies in Africa were conducted under the hypothesis that the [[Langerhans cells]] were the prime port of entry for the [[HIV]] virus. According to the hypothesis, circumcision was supposed to prevent [[HIV]] transmission by removing the Langerhans cells found in the inner [[mucosa]]l lining of the foreskin.
Recent circumcision studies in Africa were conducted under the hypothesis that the [[Langerhans cells]] were the prime port of entry for the [[HIV]] virus. According to the hypothesis, circumcision was supposed to prevent [[HIV]] transmission by removing the Langerhans cells found in the inner [[mucosa]]l lining of the foreskin.


deWitte found that not only are Langerhans cells found all over the body and that their complete removal is virtually impossible, but furthermore, deWitte found that Langerhans cells that are present in the [[foreskin]] produce ''Langerin'', a substance that has been proven to kill the [[HIV]] virus on contact, acting as a natural barrier to HIV-1 transmission by Langerhans cells.<ref>{{REFjournal
deWitte found that not only are Langerhans cells found all over the body and that their complete removal is virtually impossible, but furthermore, deWitte found that Langerhans cells that are present in the [[foreskin]] produce ''Langerin'', a substance that has been proven to kill the [[HIV]] virus on contact, acting as a natural barrier to HIV-1 transmission by Langerhans cells.<ref>{{DeWitte etal 2007}}</ref>
|last=de Witte
|first=Lot
|init=L
|last2=Nabatov
|first2=Alexey
|init2=A
|last3=Pion
|first3=Marjorie
|init3=M
|last4=Fluitsma
|first4=Donna
|init4=D
|last5=de Jong
|first5=Marein A.W.P.
|init5=MAWP
|last6=de Gruijl
|first6=Tanja
|init6=T
|last7=Piguet
|first7=Vincent
|init7=V
|last8=van Kooyk
|first8=Yvette
|init8=Y
|last9=Geijtenbeek
|first9=Teunis B.H.
|init9=TBH
|title=Langerin is a natural barrier to HIV-1 transmission by Langerhans cells
|journal=Nature Medicine
|volume=13
|issue=3
|pages=367-71
|url=http://www.circumcisionandhiv.com/files/de_Witte_2007.pdf
|format=PDF
|pubmedID=17334373
|pubmedCID=10.1038/nm1541
|DOI=10.1038/nm1541
|date=2007-03-04
|accessdate=2020-07-02
}}</ref>


==== Bacterial environment hypothesis ====
==== Bacterial environment hypothesis ====