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editorial
. 2020 Dec 28;6(3):e001454. doi: 10.1136/rmdopen-2020-001454

Figure 1.

Figure 1

Proposed mechanism whereby 1,25(OH) D -VDR (D-hormone) signalling acts on the respiratory system during the COVID-19 infection. 1,25(OH) D, 1,25-hydroxyvitamin D; ARTI, acute respiratory tract infection; IFN-gamma, inteferon gamma; IL-6, inteleukin 6; IL10, interleukin; IL -12, interleukin 12; IL-17, interleukin 17; Treg, T regulatory cells; TNF, tumour necrosis factor; UV, ultraviolet; VDR, vitamin D receptor.