1988
DOI: 10.1177/030098588802500503
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Fetal and Placental Lesions in Bovine Abortion Due to Tritrichomonas foetus

Abstract: Abstract. Laboratory records and histologic material from 13 cases of naturally occurring, early-to lateterm bovine abortion due to Tritrichomonas foetus were examined. Placentitis was present in all placentas. Pyogranulomatous bronchopneumonia was in six of the 1 1 lungs which were examined. Trichomonad organisms were demonstrated within the placental stroma in all cases and free or phagocytized in pulmonary airways in seven cases.

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Cited by 79 publications
(46 citation statements)
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“…Tritrichomonas foetus invades bovine placental tissue (Rhyan et al 1988) causing inflammatory changes in the endometrium and oviducts (Anderson et al 1996). The interactions of Tritrichomonas foetus and Trichomonas vaginalis with host epithelial cells are associated with the activation of different proteases causing epithelial cell apoptosis (Midlej et al 2009;Midlej and Benchimol 2010).…”
Section: Pathogenesismentioning
confidence: 99%
See 1 more Smart Citation
“…Tritrichomonas foetus invades bovine placental tissue (Rhyan et al 1988) causing inflammatory changes in the endometrium and oviducts (Anderson et al 1996). The interactions of Tritrichomonas foetus and Trichomonas vaginalis with host epithelial cells are associated with the activation of different proteases causing epithelial cell apoptosis (Midlej et al 2009;Midlej and Benchimol 2010).…”
Section: Pathogenesismentioning
confidence: 99%
“…This perturbation of the genital cell membranes predisposes women to an increased risk of transmitting human immunodeficiency virus (HIV) (Petrin et al 1998). Similarly, infection with Tritrichomonas foetus in cattle is devastating and causes vaginitis, cervicitis endometritis, and sub-fertility (Rhyan et al 1988).…”
Section: Introductionmentioning
confidence: 99%
“…No entanto, as lesões mais frequentemente encontradas no feto abortado são, na CGB, a brocopneumonia supurativa e hepatite intersticial, mas não são patognomônicas da doença (Bryner 1990). Já nos fetos abortados em decorrência da infecção pelo T. foetus é frequente o encontro de pneumonia piogranulomatosa com presença de células gigantes multinucleadas (Rhyan et al 1988, Rhyan et al 1995.…”
Section: Diagnóstico Clínico E Laboratorialunclassified
“…Entretanto, várias vacas mantêm a infecção mesmo durante a gestação, o que pode ocasionar abortos e infecção vaginal após o parto (Cipolla et al 1994, Corbeil et al 1998. Abortos podem ocorrer em ambas as infecções, entre 5% a 10%, sendo mais frequentes no terço médio da gestação -em torno do 4º e 5º mês de gestação, mas também podendo ocorrer em períodos mais tardios (Clark 1971, Rhyan et al 1988, BonDurant 1990, Bryner 1990. A retenção de placenta também é ocorrência comum na CGB e TGB (Clark 1971, Stoessel 1982.…”
Section: Diagnóstico Clínico E Laboratorialunclassified
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