Maternal-fetal DNA admixture is associated with intrapartum mother-to-child transmission of HIV-1 in Blantyre, Malawi
JJ Kwiek, LA Arney, V Harawa… - The Journal of …, 2008 - academic.oup.com
The Journal of infectious diseases, 2008•academic.oup.com
Background. The mechanism of mother-to-child transmission (MTCT) of HIV-1 is not well
described. Methods. Of 328 HIV-infected mother-infant pairs, we identified 91 that had
discordant angiotensin I-converting enzyme and glutathione S-transferase M1 alleles.
Maternal alleles in cord blood were quantified with real-time polymerase chain reaction, as
indicators of microtransfusions. Results. HIV-1 infected infants had more maternal DNA in
cord blood than their uninfected counterparts. Increased maternal DNA in cord blood was …
described. Methods. Of 328 HIV-infected mother-infant pairs, we identified 91 that had
discordant angiotensin I-converting enzyme and glutathione S-transferase M1 alleles.
Maternal alleles in cord blood were quantified with real-time polymerase chain reaction, as
indicators of microtransfusions. Results. HIV-1 infected infants had more maternal DNA in
cord blood than their uninfected counterparts. Increased maternal DNA in cord blood was …
Abstract
Background . The mechanism of mother-to-child transmission (MTCT) of HIV-1 is not well described.
Methods . Of 328 HIV-infected mother-infant pairs, we identified 91 that had discordant angiotensin I- converting enzyme and glutathione S-transferase M1 alleles. Maternal alleles in cord blood were quantified with real-time polymerase chain reaction, as indicators of microtransfusions.
Results . HIV-1 infected infants had more maternal DNA in cord blood than their uninfected counterparts. Increased maternal DNA in cord blood was associated with preterm delivery, low birth weight, and maternal immuno suppression.
Conclusion . Intrapartum MTCT was associated with placental microtransfusions. The associations among placental microtransfusion, in-utero MTCT, maternal immunosuppression, and poor birth outcome should be further investigated.
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