RESUMEN
On the basis of epidemiologic and clinical data in humans, and of experimental studies in kittens, E. Brumpt in 1925 showed that Entamoeba histolytica producing quadrinucleate cysts was a complex of 2 species. He differentiated a pathogenic and invasive form, from a non pathogenic and non invasive one that he called Entamoeba dispar. His explanation gained little support until recently, when Sargeaunt reported a study of isoenzyme typing and allow then the classification of amoebae resembling E. histolytica in pathogenic and non pathogenic species. Monoclonal antibodies and PCR have recently been used and have shown to react specifically with the two forms of amoebae. Genetic evidence has also demonstrated that the pathogenic and non pathogenic amoebae represent different species.
Asunto(s)
Entamoeba histolytica/clasificación , Entamoeba/clasificación , Animales , Anticuerpos Monoclonales , Gatos , ADN Protozoario/análisis , Entamoeba/genética , Entamoeba/inmunología , Entamoeba histolytica/genética , Entamoeba histolytica/inmunología , Historia del Siglo XX , Humanos , Isoenzimas/análisisRESUMEN
The etiological importance of Ancylostomidae in miners' anaemia has been discovered in 1880 by Perroncito during the boring of the Saint-Gothard tunnel in a dreadful epidemic. Thereafter in France, the illness disappeared between 1930 and 1940 because of the preventive dispositions realized. Two present cases of contamination in the coal mines of Lorraine due to N. americanus drive us to remember the interest of systematic faecal examinations of the miners at the engagement and every five years.
Asunto(s)
Minas de Carbón , Necatoriasis/epidemiología , Adulto , Francia/epidemiología , Humanos , MasculinoRESUMEN
In November 1983, HB A2 Babinga was found in a Columbian male in Paris. Blood samples from Columbia showed that his mother and one of his brothers were also Hb A2 Babinga carriers and that his mother and another brother and his sister were Hb S carriers.
Asunto(s)
Hemoglobina A2/genética , Hemoglobina A/genética , Adulto , Anemia de Células Falciformes/genética , Colombia , Electroforesis en Acetato de Celulosa , Tamización de Portadores Genéticos , Hemoglobina A2/análisis , Hemoglobina Falciforme/genética , Hemoglobinopatías/genética , Humanos , MasculinoRESUMEN
Distribution of abnormal hemoglobins and thalassemia worked out of 35,000 foreigners from 99 countries examined in Paris.
