Theory on the effectiveness of HCQ. HCQ has been shown to block the polarization of macrophages to an M1 inflammatory subtype and is predicted to interfere with glycosylation of a number of proteins involved in the humoral immune response, possibly including the macrophage FcR gamma IgG receptor and other immunomodulatory proteins, potentially through inhibition of UDP‐N‐acetylglucosamine 2‐epimerase. In combination with potential other immunomodulatory effects, this could possibly blunt the progression of COVID‐19 pneumonia all to way up to ARDS.
Brufsky et al., 4/15/2020, peer-reviewed, 1 author.
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