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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Milk from Brazilian women presents secretory IgA antibodies and neutralizes rotavirus G9P[5]

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Author(s):
Simone M.R. Santos [1] ; Thalita L. Ferreira [2] ; Virgínia S. Quintal [3] ; Solange B. Carbonare [4] ; Milene Tino-De-Franco [5]
Total Authors: 5
Affiliation:
[1] Instituto Butantan. Laboratório de Imunogenética - Brasil
[2] Instituto Butantan. Laboratório de Imunogenética - Brasil
[3] Universidade de São Paulo. Hospital Universitário. Banco de Leite Humano
[4] Instituto Butantan. Laboratório de Imunogenética - Brasil
[5] Instituto Butantan. Laboratório de Imunogenética - Brasil
Total Affiliations: 5
Document type: Journal article
Source: Jornal de Pediatria; v. 89, n. 5, p. 510-513, 2013-10-00.
Abstract

OBJECTIVE: To verify the presence of anti-rotavirus serotype G9P[5] SIgA and the virus neutralization capacity of milk samples from Brazilian women. METHODS: SIgA antibody levels reactive to rotavirus G9 were determined in 30 maternal milk samples by enzyme-linked immunosorbent assay (ELISA) using purified virus suspensions. The samples' capacity to neutralize rotavirus G9P[5] was analyzed using the MA-104 cells neutralization assay. RESULTS: Great individual variations were observed regarding the SIgA levels and neutralization titers, but all samples showed some G9P[5] neutralizing ability. A highly significant positive correlation was observed between antibody levels and neutralization titers. CONCLUSIONS: The high correlation between anti-rotavirus antibody levels and neutralizing capacity of the milk samples suggests a possible protective role of these antibodies against infection. These results also support the encouragement of the breast-feeding practice. (AU)