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Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 PLoS+One 2015 ; 10 (8): e0136014 Nephropedia Template TP
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Probucol-Induced alpha-Tocopherol Deficiency Protects Mice against Malaria Infection #MMPMID26296197
Herbas MS; Shichiri M; Ishida N; Kume A; Hagihara Y; Yoshida Y; Suzuki H
PLoS One 2015[]; 10 (8): e0136014 PMID26296197show ga
The emergence of malaria pathogens having resistance against antimalarials implies the necessity for the development of new drugs. Recently, we have demonstrated a resistance against malaria infection of alpha-tocopherol transfer protein knockout mice showing undetectable plasma levels of alpha-tocopherol, a lipid-soluble antioxidant. However, dietary restriction induced alpha-tocopherol deficiency is difficult to be applied as a clinical antimalarial therapy. Here, we report on a new strategy to potentially treat malaria by using probucol, a drug that can reduce the plasma alpha-tocopherol concentration. Probucol pre-treatment for 2 weeks and treatment throughout the infection rescued from death of mice infected with Plasmodium yoelii XL-17 or P. berghei ANKA. In addition, survival was extended when the treatment started immediately after parasite inoculation. The ratio of lipid peroxidation products to parent lipids increased in plasma after 2 weeks treatment of probucol. This indicates that the protective effect of probucol might be mediated by the oxidative stressful environment induced by alpha-tocopherol deficiency. Probucol in combination with dihydroartemisin suppressed the proliferation of P. yoelii XL-17. These results indicated that probucol might be a candidate for a drug against malaria infection by inducing alpha-tocopherol deficiency without dietary alpha-tocopherol restriction.