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  • Describes a rare group of immunodeficiencies due to specific mutations in the inhibitor of kappa light polypeptide gene enhancer in B-cells, kinase gamma (IKBKG) or the cytochrome b-245, beta polypeptide (CYBB) genes. The clinical manifestation is mycobacterial infections occurring in males. Diagnosis is made by laboratory analysis. Low levels of IFN-gamma and IL-12 production by the patients\' mononuclear cells upon phytohaemagglutinin (PHA) are detected in those with an IKBKG mutation. In addition, an impaired IL-12 production by monocytes upon PHA stimulation by activated T cells is shown. Impaired NADPH activity is demonstrated in vitro in macrophages and B-cell lines in those with a CYBB mutation. A mutational analysis is necessary to identify the exact causative genes involved allowing for the implementation of a specific treatment plan.
  • Describes a rare group of immunodeficiencies due to specific mutations in the inhibitor of kappa light polypeptide gene enhancer in B-cells, kinase gamma (IKBKG) or the cytochrome b-245, beta polypeptide (CYBB) genes. The clinical manifestation is mycobacterial infections occurring in males. Diagnosis is made by laboratory analysis. Low levels of IFN-gamma and IL-12 production by the patients\' mononuclear cells upon phytohemagglutinin (PHA) are detected in those with an IKBKG mutation. In addition, an impaired IL-12 production by monocytes upon PHA stimulation by activated T cells is shown. Impaired NADPH activity is demonstrated in vitro in macrophages and B-cell lines in those with a CYBB mutation. A mutational analysis is necessary to identify the exact causative genes involved allowing for the implementation of a specific treatment plan.
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