Natural product-derived therapy for blood-stage Plasmodium infection: Linarin, isolated from mentha arvensis and Linaris vulgaris among others, decreases the expression of CTLA-4, PD-L1 and LAG-3, promotes CD4+ T-cell function, increases secretion of protective antibodies, promotes and clear blood-stage malaria, via up regulation of its target gene, 27/March/2018, 5.59 am