1986
DOI: 10.1590/s0036-46651986000600001
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Schistosoma mansoni: infecção experimental de camundongos através da orelha e quantificação do parasitismo na pele

Abstract: RESUMONo presente trabalho, desenvolveu-se método de infecção de camundongos através da orelha e de recuperação de esquistossômulos resultantes dessas in¬ fecções. Cerca de 80% das cercarías postas em contacto com orelhas de camundongos penetraram. Destas, 30% foram recuperadas. como vermes adultos, do sistema porta. Da pele (das orelhas) as maiores recuperações de esquistossô-mulos ocorreram nos dois primeiros dias após a infecção.Os parasitas permaneceram nesse sítio por dois dias. No terceiro dia, os parasi… Show more

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Cited by 3 publications
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“…After cercarial penetration, the skin thickness attains maximal values in 48 hr (Incani & McLaren 1984), and this is consistent with the rise in mast cell number at day 2 with peak at day 4. Also, by remaining in the skin for 4 to 5 days (Miller & Wilson 1978), or up to 7 days (Gerken et al 1986), the schistosomula could create conditions able to maintain the raised number of nodal mast cells till day 6. In the absence of challenge infection, the parotid lymph nodes of infected mice exhibited a larger number of mast cells in comparison with normal animals.…”
Section: Discussionmentioning
confidence: 99%
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“…After cercarial penetration, the skin thickness attains maximal values in 48 hr (Incani & McLaren 1984), and this is consistent with the rise in mast cell number at day 2 with peak at day 4. Also, by remaining in the skin for 4 to 5 days (Miller & Wilson 1978), or up to 7 days (Gerken et al 1986), the schistosomula could create conditions able to maintain the raised number of nodal mast cells till day 6. In the absence of challenge infection, the parotid lymph nodes of infected mice exhibited a larger number of mast cells in comparison with normal animals.…”
Section: Discussionmentioning
confidence: 99%
“…For studying the response of lymph nodes to the primary infection and re-infection, anesthetized (Nembutal, 35 mg/kg) mice were infected percutaneously by the right ears with cercariae of S. mansoni. The animals were held on a wooden board containing holes in such a way that the right ears remained immersed in a suspension with 250-300 cercariae, for 1 hr (Gerken et al 1986). On the average, 80% of the cercariae penetrated each ear.…”
Section: Methodsmentioning
confidence: 99%
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