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  • Title: Curcumin: A promising treatment for Cryptosporidium parvum infection in immunosuppressed BALB/c mice.
    Author: Asadpour M, Namazi F, Razavi SM, Nazifi S.
    Journal: Exp Parasitol; 2018 Dec; 195():59-65. PubMed ID: 30385266.
    Abstract:
    Members of the genus Cryptosporidium are frequent protozoan pathogens in humans and a wide range of animals. There is no consistently effective treatment against cryptosporidiosis, especially in immunodeficient patients. The present study was carried out to study the therapeutic effects of curcumin against cryptosporidiosis in immunosuppressed BALB/c mice. Mice were divided into five groups and immunosuppressed by dexamethasone. Three groups were inoculated with C. parvum oocysts, administered with curcumin, paromomycin, and without treatment. The reminders were regarded as controls. The oocysts in the fecal smear were counted daily. At days 0, 3, 7, and 11 post-treatment, the mice were sacrificed, and the efficacy of drugs was evaluated by comparing the histopathological alterations in jejunum and ileum, measuring the total antioxidant capacity, and malondialdehyde in the affected tissues. The infection was completely eliminated in the curcumin-treated group, and oocyst shedding stopped with no recurrence after drug withdrawal. On the contrary, paromomycin was unable to eliminate C. parvum infection completely, and oocyst shedding continued even 10 days after the drug withdrawal. Based on these findings, curcumin can be a trustworthy compound for the elimination of infection in immunosuppressed hosts. Further evaluation to find its accurate mechanism of action should be considered.
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