https://step-prep.org/tutoring/
Yes, this is CGD. But which cell? According to UTD: "These genetic defects result in the inability of phagocytes (neutrophils, monocytes, and macrophages) to destroy certain microbes." https://www.uptodate.com/contents/chronic-granulomatous-disease-pathogenesis-clinical-manifestations-and-diagnosis
FA2020: "Involves the activation of the phagocyte NADPH oxidase complex (eg, in neutrophils, monocytes)."
Seems like NADPH oxidase deficiency would involve macrophages too... So is neutrophil just the most important/well known?
submitted by โrussnels(20)
This is likely Chronic Granulomatous Disease, which is characterized by a deficiency in NADPH Oxidase - which produces H2O2, a precursor to hypochlorite (bleach) for the respiratory burst.
Pts with CGD are especially susceptible to catalase + organisms, because the bacterial catalase neutralizes the bacterial H2O2 (which allows CGD patients to provide some resistance to certain catalase negative bacteria).