Detección de Entamoeba moshkovskii en humanos: un nuevo problema diagnóstico en la amibiasis. Revisión
Abstract: The genus Entamoeba contains many species, of which six can live in the large intestine of man: Entamoeba histolytica, Entamoeba dispar, Entamoeba moshkovskii, Entamoeba polecki, Entamoeba coli and Entamoeba hartmanni. The first three are morphologically identical, but only E. histolytica...
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| Format: | Article in Journal/Newspaper |
| Language: | English Spanish |
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Universidad del Zulia,Facultad de Medicina,Departamento de Enfermedades Infecciosas y Tropicales
2013
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| Online Access: | https://doaj.org/article/663e24aabdf141c295708a21f1265704 |
| Summary: | Abstract: The genus Entamoeba contains many species, of which six can live in the large intestine of man: Entamoeba histolytica, Entamoeba dispar, Entamoeba moshkovskii, Entamoeba polecki, Entamoeba coli and Entamoeba hartmanni. The first three are morphologically identical, but only E. histolytica is considered pathogenic, producing amibiasis, whereas E. dispar and E. moshkovskii are considered non-pathogenic. Differentiation between these amoebas cannot be made by microscopic examination, which is the most widely used technique for diagnosing amibiasis. To differentiate, molecular biological methods (PCR) or detection of E. histolytica coproantigens by ELISA are the recommended methods. More recently, an increase in the discovery of human cases of parasitism by E. moshkovskii has provoked a major complication, because laboratory tests should discriminate among the three amoebas for a definitive diagnosis. In addition, technical problems remain regarding a rapid, simple and inexpensive method that allows routine laboratories to distinguish between E. histolytica, E. dispar and E. moshkovskii. At present, the recommendation is to report trophozoites and/or cysts morphologically compatible with E. histolytica, as complex Entamoeba or as E. histolytica/dispar/moshkovskii. Resumen: El género Entamoeba comprende varias especies, de las cuales, seis pueden habitar en el intestino grueso del hombre: Entamoeba histolytica, Entamoeba dispar, Entamoeba moshkovskii, Entamoeba polecki, Entamoeba coli y Entamoeba hartmanni. Las tres primeras son morfológicamente idénticas, pero solo E. histolytica es considerada patógena, produciendo la amibasis; mientras que E. dispar y E. moshkovskii son consideradas no patógenas. La diferenciación entre estas amibas no puede efectuarse mediante examen microscópico, que es la técnica más utilizada para el diagnóstico de la amibiasis; se recomiendan para ello, métodos de biología molecular (PCR) o detección de coproantigenos de E. histolytica mediante ELISA. Más recientemente, el aumento ... |
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