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The Egyptian Journal of Bronchology
Fig. 2 | The Egyptian Journal of Bronchology

Fig. 2

From: Impacts of vitamin C and D supplement on COVID-19 treatment: possible patho-mechanisms and evidence from different countries

Fig. 2

Vitamin D. It has three activities. a It has immunomodulatory activity. Here, it matures lymphocytes and macrophage. b Its anti-inflammatory activity decreases the level of IL-1, IL-10, and IL-21. As a result, the level of cytokine decreases. c In its antiviral activity, vitamin C increases the level of cathelicidin (LL-37) which attacks viruses. Vitamin D helps to protect the body from diseases and reduce the severity of diseases

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