Trypanosoma cruzi development in the anal glands of experimentally infected Lutreolina crassicaudata (Marsupialia, Didelphidae)

Steindel, Mário; Pinto, Carlos José do Carvalho

doi:10.1590/s0074-02761988000300021

Cited by 8 publications

(4 citation statements)

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“…They had infected the opossums by subcutaneous inoculation, but then failed to recover the parasites from any tissues, except until careful sectioning revealed the parasites in the anal glands . Subsequent studies also showed T. cruzi in the anal glands of naturally infected D. marsupialis (Naiff et al 1987 and D. albiventris (Fernandes 1989, Fernandes et al 1987, 1989, 1991 and in experimentally infected Lutreolina crassicaudata (Steindel & Pinto 1988). The bloodstream and anal glands of some of these opossums were also infected by T. freitasi , 1990, Fernandes et al 1987.…”

Section: Reconciling the Paradoxmentioning

confidence: 95%

Trypanosoma cruzi -- the vector-parasite paradox

Schofield

2000

Mem. Inst. Oswaldo Cruz

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Section: Reconciling the Paradoxmentioning

confidence: 95%

Trypanosoma cruzi -- the vector-parasite paradox

Schofield

2000

Mem. Inst. Oswaldo Cruz

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“…A competência vetorial dessas glândulas e, portanto, sua importância epidemiológica, permanece desconhecida, apesar da alta taxa de metaciclogênese (até 50%) sugerir que esta pode ser uma eficiente via de dispersão do parasito. Além dos Didelphis spp., o ciclo de multiplicação extracelular do parasito em glândulas de cheiro também já foi demonstrado em indivíduos de Lutreolina crassicaudata experimentalmente infectados (Steindel & Pinto 1988).…”

Section: Ordem Marsupialiaunclassified

Vetores da doença de Chagas no Brasil

Galvão¹

2014

117

107

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“…This property has been reported from wild D. marsupialis and Didelphis albiventris in both Brazil and Venezuela ( 28 – 30 ). In addition, the experimental colonization of D. marsupialis and Lutreolina crassicaudata glands was produced by s.c. injection of bug urine and fecal material ( 31 – 33 ).…”

Section: Chronological Description Of Investigations Into the Chagas’mentioning

confidence: 99%

Chagasâ€™ Disease: An Emergent Urban Zoonosis. The Caracas Valley (Venezuela) as an Epidemiological Model

Urdaneta‐Morales

2014

Front. Public Health

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The unprecedented emergence of important public health and veterinary zoonoses is usually a result of exponential population growth and globalization of human activities. I characterized Chagas’ disease as an emergent zoonosis in the Caracas Valley (Venezuela) due to the following findings: the presence of reservoirs (Didelphis marsupialis, Rattus rattus) and vectors (Panstrongylus geniculatus, Panstrongylus rufotuberculatus) infected with Trypanosoma cruzi in urbanized or marginalized areas; the elevated contact between P. geniculatus and human beings detected by parasitological and molecular examinations of triatomine feces demonstrated the possibility of transmission risks; a study of outbreaks of urban Chagas’ disease reported the first proven case of oral transmission of T. cruzi to human beings; the risk of transmission of glandular metacyclic stages from marsupials by experimental ocular and oral instillation; mice genitalia infected with T. cruzi contaminated blood resulted in the formation of amastigotes very close to the lumen suggesting that there may be a possibility of infection via their release into the urine and thence to the exterior; the ubiquitous histotropism and histopathology of T. cruzi was demonstrated using a mouse model; the presence of experimental T. cruzi pseudocysts in adipose, bone-cartilage, and eye tissue indicated a potential risk for transplants. Socio-sanitary programs that include improvements in housing, vector control, and access to medical treatment, as well as strategies aimed at combating social inequalities, poverty, and underdevelopment should be undertaken in those areas where zoonoses are most prevalent. Disciplines, such as Ecology, Epidemiology, Medical Entomology, Human and Veterinary Medicine, Environmental Studies, Public Health, Social and Political Studies, Immunology, Microbiology, and Pharmacology could all provide important contributions that aim to reduce the occurrence of factors governing the spread of emergent diseases.

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Trypanosoma cruzi development in the anal glands of experimentally infected Lutreolina crassicaudata (Marsupialia, Didelphidae)

Cited by 8 publications

References 0 publications

Trypanosoma cruzi -- the vector-parasite paradox

Trypanosoma cruzi -- the vector-parasite paradox

Vetores da doença de Chagas no Brasil

Chagasâ€™ Disease: An Emergent Urban Zoonosis. The Caracas Valley (Venezuela) as an Epidemiological Model

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