A new study conducted at the University of North Carolina, in the United States, reveals that breastmilk It has the ability to inhibit the transmission of HIV orally. The research showed that breast milk, in vitro, showed a potent inhibitory effect of HIV infection. However, at the moment, these results could not be confirmed in vivo.

Researchers had observed a paradox and that although it is considered that breast milk is one of the main routes of transmission of the virus to the children of infected mothers (see 'how AIDS is spread'), many of these babies who were fed by breastfeeding were not infected.

Breast milk, in vitro, showed a potent inhibitory effect of HIV infection. However, at the moment, these results could not be confirmed in vivo

The research, published in the journal 'PLoS Pathogens', has been carried out with a humanized mouse model called BLT, which scientists create by introducing human tissues from the bone marrow, the thymus and the liver into mice that they do not have an immune system, and that they can be infected with HIV in the same way as humans.

These mice had cells in the oral cavity and upper digestive tract infected with those that could transmit the AIDS virus to their offspring, and breast milk was able to prevent the oral transmission of both virus particles and infected cells. the same.

It is estimated that more than 15% of new HIV infections affect children. The properties discovered in breast milk in vitro They open up the possibility of analyzing the way in which this and other natural products could be used to prevent the transmission of the virus among the child population. Although it must be taken into account that it is a study that has not been tested in humans.

Breastfeeding (November 2019).