Published in Blood Weekly, May 27th, 2004
"Anti-GM antibodies of the immunoglobulin M (IgM) isotype are normal components of the antibody repertoire of adult human serum. Using a sensitive high-performance thin-layer chromatography (HPTLC) immunostaining assay, we found that these antibodies were absent in the umbilical vein and children <1 month of age but could be detected after 1 month of age. Although most of the children older than 6 months of age were positive, there were still a few negative children," wrote scientists in Argentina.
"The appearance of anti-GM, IgM antibodies showed a perfect concordance...
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