Scielo RSS <![CDATA[Boletín chileno de parasitología]]> vol. 56 num. 1-2 lang. es <![CDATA[SciELO Logo]]> <![CDATA[Una nueva revista biomédica: Parasitología Latinoamericana]]> <![CDATA[A new biomedical magazine: Parasitología Latinoamericana]]> <![CDATA[<B>Búsqueda de xifidiocercarias (Trematoda) en moluscos de agua dulce recolectados en nueve municipios del Estado de São Paulo, Brasil</B>]]> Xiphidiocercariae, aquatic larval stages of some trematodes are considered a potential instrument for biological control of mosquitoes. In this study we evaluated its natural occurrence in Campinas region and two places in Vale do Ribeira (Registro and Miracatu), São Paulo State. Snails were obtained from fresh water collections from September 1996 to February 1999. The species collected were Lymnaea columella, Physa marmorata, Biomphalaria tenagophila, Biomphalaria sp., Drepanotrema cimex, D. lucidum and Drepanotrema sp. Fasciola hepatica, xiphidiocercariae (Haematoloechidae) and echinostomatid cercariae were detected in the lymnaeids snails from Miracatu, SP. In the same locality were found planorbids snails parasitized by furcocercariae, echinostomatid cercariae and xiphidiocercariae. The xiphidiocercariae found in the planorbids were different from those obtained from lymnaeids. One Biomphalaria sp. infected with furcocercariae was found in Louveira, SP. In the ROSA place (Campinas, SP) an individual of Biomphalaria sp. and one of L. columella were found infected by the furcocercariae and echinostomatid cercariae, respectively. In the place UNI-I, in Campinas, one L. columella was infected by furcocercariae. Double infection in snails from Miracatu was also observed <![CDATA[Colangiohidatidosis: Una complicación evolutiva de la hidatidosis hepática]]> Hydatidosis is and endemic disease in the south of Chile, especially in Region IX where remain rates of high prevalence. Cholangiohydatidosis is an infrequent complication of liver hydatidosis. The objective of this paper is to describe clinical features of a series of patients with cholangiohydatidosis. Series of cases of cholangiohydatidosis treated consecutively and the corresponding follow-up is reported. Clinical, laboratory and images characteristics are described. Descriptive statistic was used and its incidence was calculated. In the studied period, 13 patients with cholangiohydatidosis were recruited, 9 men (69.2%) and 4 women (30.7%). Observed laboratory abnormalities were an increment of leukocytes in 8 patients (61.5%) and hepatic cholestasis with hepatocyte signs of cytolysis in 11 patients (84.6%). Choledocus diameter average measured by ultrasonography was 24,7 mm. All the patients had at least one liver cyst whose diameter average was of 12.1 cm. At surgery, evidence of biliary communications was detected in all patients and biliary decompression was carried out through a choledocostomy in 12 patients (92.3%) and by choledocoduodenal anastomoses in one case (7.7%). With a mean follow-up of 38.7 months morbility was 23% and mortality 7.7%. Accumulated incidence of this entity was of 0.07 cases in 5 years. Cholangiohydatidosis is an uncommon complication of liver hydatidosis that presents considerable morbidity and mortality rates. <![CDATA[Microsporidiosis generalizada por Encephalitozoon sp. en un paciente pediátrico con enfermedad de Bruton]]> We present the case of a four-year-old boy with a history of repeated upper respiratory tract infections and pyoderma. He presented fever, seizures, inhability to talk, loss of swallowing, fine tremor in the upper extremities; positive bilateral Babinski reflex and quadriparesis. The diagnosis of Bruton's disease and generalized microporidiosis was based on immunologic analysis, smear tests with chromotrope R2 stain and indirect immunofluorescense with monoclonal 3B6 antibody for Encephalitozoon species in samples of spinal fluid, bronchial and paranasal sinus aspirates and stool, which were all positive. The patient was treated with albendazol during 72 days; he left the hospital in a good condition, walking, talking and able to swallow. His laboratory test controls were negative; he is followed up in the outpatient department <![CDATA[Nuevos casos de infección humana por Diphyllobothrium pacificum (Nybelin, 1931)  Margolis, 1956 en Chile y su probable relación con el fenómeno de El Niño, 1975-2000]]> The effect of El Niño/ENSO on terrestrial atmosphere appears to be extremelly clear. However there are outstanding evidences showing its effect on humans and their activities. In fact, prevalence of some parasitic infections have increased during El Niño phenomenon. The reasons for that are the migrations of sylvatic mammals, fishes and birds as well as by environmental contamination. In this report, we show evidence respect of new cases of human infection by Diphyllobothrium pacificum clearly associated with a cyclic manifestation of El Niño in the Chilean Pacific coast during 1975-2000 <![CDATA[Diphyllobothrium pacificum (Nybelin, 1931) Margolis, 1956 en Canis familiaris de la ciudad de Chincha, Perú]]> In this communication is presented the finding of the tapeworm Diphyllobothrium pacificum, parasite of sea lions, in Canis familiaris (dog) in Chincha city, Peru. This is the first canine infection with D. pacificum in the South Peruvian coast <![CDATA[Parasitofauna y alimentación de Notothenia c.f. angustata Hutton, 1875 (Pisces: Nototheniidae) en el intermareal de dos localidades del Golfo de Arauco, Chile]]> We studied the parasite fauna and food contents of 38 juvenile of Notothenia c.f. angustata specimens captured in the intertidal of Island Santa María and Maule, in the Arauco Gulf, Chile. Trophic habits of Notothenia c.f. angustata were not different between localities, which was mainly algae. A total 11 parasitic taxa among were found with the digenean Lecitasther macrocotyle, cestode larvae Tetraphyllidea and Diphyllidea and nematode Ascarophis sp. being the dominant taxa. The abundance of parasites was similar in the two localities, although the infracommunity richness was higher in fish from Maule. The most abundant parasite was L. macrocotyle in hosts from Isla Santa María, while those from Maule they were the Diphyllidea larvae and nematodes Ascarophis sp. The body length of the hosts was not a good predictor of the variations in abundance and richness at infracommunities, probably because of the early ontogenetic stage of fishes. <![CDATA[<B>Brachylaima mazzantii</B> (Trematoda): primer registro en <B>Zenaida auriculata</B> (Aves: Columbidae)]]> Veintitrés ejemplares de Zenaida auriculata Des Murs, 1847 fueron capturados en el municipio de Junqueirópolis en la región oeste del estado de São Paulo, Brasil. Brachylaima mazzantii (<A HREF="#Travassos1927">Travassos, 1927</A>) Dollfus, 1935 fue encontrado parasitando a uno de los ejemplares examinados. Este es el primer registro de este tremátodo en palomas del género Zenaida <![CDATA[Análisis del inmunoblot usando antígeno de cisticercos de <B>Taenia crassiceps</B> en el diagnóstico de la cisticercosis]]> Se utilizó la técnica del inmunoblot para el diagnóstico de la cisticercosis porcina usando un antígeno total de cisticercos de Taenia crassiceps. Fueron analizados 13 sueros del cerdo con cisticercosis, 30 sueros controles negativos y ocho sueros del cerdo con hidatidosis, así como nueve del suino con macracantorincosis, 10 con ascaridiosis y ocho con pulmonía. El uso de este antígeno en el inmunoblot con suero de cerdos no se había publicado previamente. El inmunoblot fue padronizado por análisis de titulación en bloque mostrando 100.0% de sensibilidad y 96.7% de especificidad. Los péptidos específicos para la cisticercosis en orden de frecuencia fueron: 72-68 kD (100%), 16-15 kD (77%), 39-36 kD (62%), 18-17 kD (54%), 21 kD (31%), 14 kD (23%), 25-23 kD (8%), y 20-19 kD (8%). Reacción cruzada (72-68 y 18-17 kD) sólo se descubrió en una muestra (12.5%) de cerdo con hidatidosis. Debido a sus altas tasas de desempeño, el inmunoblot debe ser útil para confirmar el diagnóstico de cisticercosis porcina y es más eficaz que otras pruebas empleadas para este propósito, como examen de la lengua, examen anatomopatológico y ELISA <![CDATA[Una nueva especie del género Cameronia Basir (Oxyurida: Thelastomatidae) parásita de Gryllodes laplatae Sauss (Orthoptera: Gryllidae) en Argentina]]> Cameronia laplatae n. sp. found in City Bell, Argentina, parasitizing crickets is described and illustrated. The new species is distinguished from other members of the genus Cameronia by the distribution pattern of the genital papillae in the male. It differs from all congeners mainly in having two pairs preanal y two pairs postanal papillae