Abstract Title:

Different doses of vitamin C supplementation enhances the Th1 immune response to early Plasmodium yoelii 17XL infection in BALB/c mice.

Abstract Source:

Int Immunopharmacol. 2019 Mar 7 ;70:387-395. Epub 2019 Mar 7. PMID: 30852294

Abstract Author(s):

Xiaosong Qin, Jianhua Liu, Yunting Du, Ying Li, Li Zheng, Guang Chen, Yaming Cao

Article Affiliation:

Xiaosong Qin


Vitamin C (ascorbate) is maintained at high levels in most immune cells and can affect many aspects of the immune response. Here, we evaluated the effect of vitamin C supplementation on the immune response to Plasmodium yoelii 17XL (P. yoelii 17XL) infection in BALB/c mice. Two orally administered doses (25 mg/kg/day and 250 mg/kg/day) of vitamin C significantly reduced levels of parasitemia during the early stages of P. yoelii 17XL infection. The numbers of activated Th1 cells and macrophages in the groups receiving vitamin C supplementation were both higher than those in the untreated group. Meanwhile, vitamin C administration reduced the levels of tumor necrosis factor α secreted by splenocytes. Vitamin C also regulated the protective anti-malarial immune response by increasing the number of plasmacytoid dendritic cells, as well as the expression of dendritic cell maturation markers, such as major histocompatibility complex class II and cluster of differentiation 86. In conclusion, the doses of vitamin C (25 mg/kg/day, 250 mg/kg/day) during the early stages of malaria infection may better enhance host protective immunity, but have no dose dependence.

Study Type : Animal Study
Additional Links
Pharmacological Actions : Immunostimulatory : CK(633) : AC(192)

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