Survival of Acanthamoeba cysts after desiccation for more than 20 years.
نویسندگان
چکیده
Acanthamoeba is a free-living ameba that is found throughout the world and that causes encephalitis, keratitis, and cutaneous infections in humans. It has two stages in its life cycle: a trophic stage and a resistant cyst stage. We describe here the ability of Acanthamoeba cysts to survive desiccation for more than 20 years.
منابع مشابه
Evaluating Potential of Electromagnetic Microwaves on Destruction Acanthamoeba Cysts
Background: Acanthamoeba is a free-living and opportunistic amoeba that the potential of this parasite to convert to a cyst, making its treatment difficult. In this study, we investigated the effect of microwave radiation on Acanthamoeba cysts in vitro. Materials and Methods: Acanthamoeba cysts were reproduced in the culture medium. We divided 16 test tubes containing cysts into two groups. Th...
متن کاملEfficient Liquid Media for Encystation of Pathogenic Free-Living Amoebae
Pathogenic Naegleria fowleri, Acanthamoeba castellanii, and Acanthamoeba polyphaga, are distributed worldwide. They are causative agents of primary amoebic meningoencephalitis or acanthamoebic keratitis in humans, respectively. Trophozoites encyst in unfavorable environments, such as exhausted food supply and desiccation. Until recently, the method of N. fowleri encystation used solid non-nutri...
متن کاملEffects of Aqueous and Ethanolic Extracts of Myrtus Communis Leaves on Trophozoites and Cysts of Acanthamoeba: An In Vitro Study
Background and Aims: Acanthamoeba is a ubiquitous amphizoic organism which can cause lethal diseases such as granulomatous amoebic encephalitis and unfortunately, the infection has now increased in the world. The aim here was to evaluate in vitro anti-Acanthamoeba properties of crude aqueous and ethanolic extracts of Myrtus communis. Materials and Methods: In this experimental research, a clin...
متن کاملPersistence of acanthamoeba antigen following acanthamoeba keratitis.
AIM To investigate the hypothesis that persistent corneal and scleral inflammation following acanthamoeba keratitis is not always caused by active amoebic infection but can be due to persisting acanthamoebic antigens METHODS 24 lamellar corneal biopsy and penetrating keratoplasty specimens were obtained from 14 consecutive patients at various stages of their disease and divided for microscopy...
متن کاملThe Isolation and Detection of Acanthamoeba in Rural Water Sources of Arak, Iran
Abstract Background and Objective: Acanthamoeba species are free-living protozoa that can be isolated from all environments. They can bring about different diseases in healthy individuals and immune suppressed patients, for example, Granulomatous Amoebic Encephalitis (GAE), Acanthamoeba Keratitis (AK), Cutaneous and Nasopharyngeal infections. The aim of this study was to evaluate the Acanthamoe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of clinical microbiology
دوره 46 12 شماره
صفحات -
تاریخ انتشار 2008