Abstract
The incidence of three granulomatous response diseases—sarcoidosis, tuberculosis, and non-tuberculous mycobacterial pulmonary disease—differ markedly in African–Americans versus Caucasians. In reviewing a large compendium of non-cystic-fibrosis bronchiectasis, we noted that complicating infection with non-tuberculous mycobacteria was relatively infrequent among individuals of African–American descent, confirming previous observations of their inherent resistance. Disease-specific variance among African–Americans in the efficacy of their granulomatous response suggests a nexus, a mediating, immunological mechanism. Environmentally conditioned selection of SLC11A1 (Nramp1) alleles may account for this ethnic variance.
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Abbreviations
- AA:
-
African–American
- Nramp1:
-
Natural resistance-associated macrophage protein 1
- NTMPD:
-
Non-tuberculous mycobacterial pulmonary disease
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Drs. Reich and Kim declare that they have no conflict of interest.
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Reich, J.M., Kim, J.S. Diminished Susceptibility of African–Americans to Non-tuberculous Mycobacterial Disease. Lung 196, 125–127 (2018). https://doi.org/10.1007/s00408-017-0070-x
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DOI: https://doi.org/10.1007/s00408-017-0070-x
Keywords
- African–American
- Bronchiectasis
- Non-tuberculous mycobacterial disease
- Sarcoidosis
- Nramp1
- SLC11A1