Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 2 de 2
Filter
Add filters








Year range
1.
Rev. bras. parasitol. vet ; 19(1): 55-61, jan.-mar. 2010. ilus, tab
Article in Portuguese | LILACS | ID: lil-604636

ABSTRACT

O objetivo deste trabalho foi analisar os efeitos da infecção causada pelo Toxoplasma gondii sobre a parede do duodeno de gatos. Foram utilizados seis gatos (Felis catus), com cerca de três meses de vida, distribuídos aleatoriamente em Grupo controle (G1; n = 3) e Grupo infectado (G2; n = 3). Os animais do G2 receberam, por via oral, 200 cistos teciduais da cepa ME49 (tipo II) do T. gondii. Após 40 dias, os animais foram submetidos à eutanásia, laparotomia e retirada do duodeno, que foi fixado em solução de Bouin e submetido à rotina histológica para obtenção de cortes transversais de 3 µm. Os cortes foram corados com Hematoxilina-Eosina (HE), Azan, Ácido Periódico de Schiff (PAS), Alcian-Blue e Tricrômio de Mallory. Realizou-se uma avaliação qualitativa da parede intestinal e medidas comparativas entre os dois grupos, com relação: à espessura da túnica mucosa, túnica muscular, parede total, altura dos vilos, profundidade das criptas e altura dos enterócitos e seus núcleos. As células caliciformes, os linfócitos intraepiteliais e as células de Paneth foram quantificados. Os resultados mostraram que a infecção levou à atrofia da túnica mucosa, túnica muscular e parede intestinal do duodeno de gatos do G2 (p < 0,05). A altura dos enterócitos apresentou um aumento significativo (p < 0,05) nos animais do G2. Na avaliação qualitativa, as fibras colágenas ocupavam visivelmente uma maior área dos estratos da parede intestinal, o que sugere que estejam aumentadas. Observou-se a redução da secreção de sulfomucinas e o aumento das células de Paneth nesses mesmos animais (p < 0,05).


This paper analyzes the effects of the infection caused by Toxoplasma gondii on the cat duodenal wall. Six cats (Felis catus) with 3-month-old were randomly divided into Control Group (G1; n = 3) and Infected Group (G2; n = 3). The animals from G2 received orarilly 200 T. gondii tissye cysts of ME49-strain (type II). After 40 days, the animals were submitted to euthanasia, laparotomy and had their duodenum removed, fixed in Bouin solution and submitted to histological routine obtaining 3 µm transverse cuts. The cuts were stained with Hematoxylin-Eosin (HE), Azan, Periodic acid - Schiff (PAS), Alcian-Blue, and Mallory trichrome. Qualitative assessment of the intestine wall as well as comparative measurements with respect to the thickness of mucosa, muscle tunic, total wall, the height of the villous, the depth of the crypts, and the height of the enterocytes and their nuclei were carried out. Calciform cells, the intraepithelial lymphocytes, and the Paneth cells were quantified. The results showed that the infection led to the atrophy of the mucosa, muscle tunic, and the intestinal wall of the duodenum of G2 cats (p < 0.05). The enterocytes height presented significant (p < 0.05) increase for G2 animals. According to the qualitative analysis, the collagen fibers were visibly taken a broader area on the intestinal wall layers, what suggests they have increased in size. Decrease in the sulphomucins secretion and the increase of Paneth cells were observed for these animals (p < 0.05).


Subject(s)
Animals , Cats , Cat Diseases/parasitology , Duodenal Diseases/veterinary , Toxoplasmosis, Animal/parasitology , Duodenal Diseases/parasitology
2.
Rev. colomb. radiol ; 20(4): 2784-2788, dic. 2009.
Article in Spanish | LILACS | ID: lil-588760

ABSTRACT

La infección congénita por Toxoplasma gondii del sistema nervioso central es muy frecuente; así mismo son serias sus repercusiones clínicas y la afectación sobre el desarrollo neurológico del niño. El diagnóstico de esta entidad se puede sospechar con los hallazgos clínicos que, junto con el apoyo imaginológico y la confirmación serológica, permiten iniciar un tratamiento para disminuir el número de complicaciones de la población pediátrica afectada. En el artículo se exponen las fuentes de infección, sus manifestaciones clínicas, los hallazgos imaginológicos y la forma de confirmación serológica, con base en un caso clínico del Instituto de Ortopedia Infantil Roosevelt, de la ciudad de Bogotá, donde se tuvo la oportunidad de encontrar sus manifestaciones imaginológicas en la radiografía simple, la ecografía transfontanelar, la ecografía ocular y la tomografía de cráneo.


The central nervous system congenital infection by Toxoplasma gondii is very frequent, and its clinical and neurological implications can be serious in the children. The diagnosis of this disease can be suspected if the patient have the clinical symptoms and can be supported with some radiologic findings and confirmed by serological tests, in order to initiate a pharmacological treatment and diminish the complications of the pediatric population. This article exposes how humans can be infected, its clinical symptoms, serologic and imaging findings in conventional radiology, transcraneal and ocular ultrasonography and computed tomography, related to a case report in the Instituto de Ortopedia Infantil Roosevelt in Bogota, Colombia.


Subject(s)
Central Nervous System , Cerebrum , Infections , Toxoplasmosis, Congenital
SELECTION OF CITATIONS
SEARCH DETAIL