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  • Title: In vitro activity of 1H-phenalen-1-one derivatives against Acanthamoeba castellanii Neff and their mechanisms of cell death.
    Author: López-Arencibia A, Reyes-Batlle M, Freijo MB, McNaughton-Smith G, Martín-Rodríguez P, Fernández-Pérez L, Sifaoui I, Wagner C, García-Méndez AB, Liendo AR, Bethencourt-Estrella CJ, Abad-Grillo T, Piñero JE, Lorenzo-Morales J.
    Journal: Exp Parasitol; 2017 Dec; 183():218-223. PubMed ID: 28916457.
    Abstract:
    Acanthamoeba is an opportunistic pathogen which is the causal agent of a sight-threatening ulceration of the cornea known as Acanthamoeba keratitis (AK) and, more rarely, an infection of the central nervous system called "granulomatous amoebic encephalitis" (GAE). The symptoms of AK are non-specific, and so it can be misdiagnosed as a viral, bacterial, or fungal keratitis. Furthermore, current therapeutic measures against AK are arduous, and show limited efficacy against the cyst stage of Acanthamoeba. 1H-Phenalen-1-one (PH) containing compounds have been isolated from plants and fungi, where they play a crucial role in the defense mechanism of plants. Natural as well as synthetic PHs exhibit a diverse range of biological activities against fungi, protozoan parasites or human cancer cells. New synthetic PHs have been tested in this study and they show a potential activity against this protozoa.
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