Abstract
INFORMATION about increased gamma-globulins in certain ethnic communities is rare and as far as we know extends only to Navajo Indians, Puerto Ricans and certain American Negroes1–3. There has been no convincing explanation for this phenomenon. We discuss here racial differences in the synthesis of gamma-globulins, and increased exposure to chronic infections, the latter resulting in an increased production of humoral antibodies. Chronic liver disease can easily be excluded as a cause.
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HARTMANN, G., RITZEL, G. Immunoglobulins in Tibetans. Nature 215, 393 (1967). https://doi.org/10.1038/215393a0
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DOI: https://doi.org/10.1038/215393a0
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