breast milk is able to block HIV?

breast milk is able to block HIV?According to the results of laboratory studies, containing components of breast milk can prevent the transmission of HIV to infants. This discovery, researchers say, does not mean that HIV-positive mothers should breastfeed their babies, because the virus can still be transmitted in this way. However, if these data are confirmed by further research, they can help in the search for new ways of preventing transmission of the virus from one adult person to another during sexual contact. It is already known that milk contains certain substances that suppress HIV. "Breast milk is a lot of Goodies, such as antibodies from the mother's body," says Louise Kuhn, who had studied the ways of HIV transmission at Columbia University in new York. Now bill Paxton from the University of Amsterdam and his colleagues found specific HIV opposing components of breast milk that have the strongest effect. It is said that this mysterious ingredient is Lewis's, a substance that is also present in blood and saliva. HIV infects CD4 cells (antigenic marker of helper T-lymphocytes), which are a key element of the immune system, and destruction of these cells leads to AIDS. Some researchers believe that the virus can enter the cells by CD4 connection with a certain type of immune cells known as dendritic cells, the newspaper writes. Paxton and his team found that HIV cannot be used for the delivery of these virus dendritic cells, if the substance containing Lewis-X, has already been attached to a specific protein on the cell surface. It is known that dendritic cells accumulate in the tonsils, so they can get a big dose of Lewis-X together with milk drinking baby. In some samples of breast milk this substance does not allow HIV to join the cell in a Petri dish, even when diluted 500 times. The question of whether breast milk protection from HIV in real life, remains open, warns David MacDonald, who is studying the virus in the University in Cleveland, Ohio. "If he is an inhibitor, then why HIV is transmitted to children through the mother's milk?" "he asks. According to UNICEF, every year about 200 thousand children infected with HIV through breast milk. From 10% to 20% of children of HIV-infected mothers receive the virus within 2 years of breastfeeding. Paxton argues that without this protective substance HIV infection, likely would occur more often. Experts in the health care debate on the risks and benefits of breastfeeding in some cases, but the main line, which adheres to the who, it is to recommend that HIV-infected mothers to use formula for artificial feeding. Currently Paxton intends to investigate whether women with higher levels of detected substances in breast milk is less likely to transmit HIV to their children. In his words, "it will not be easy, given that ethical norms do not allow children's exposure to the risk of HIV infection. The ultimate goal of the Paxton - discover a component that blocks HIV, so it can be used as a constituent of the grease for protection during sexual intercourse, the magazine concludes. Nature (Russian text Inopressa.Ru).



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