2011
DOI: 10.4269/ajtmh.2011.10-0490
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Dexamethasone Effects in the Strongyloides venezuelensis Infection in A Murine Model

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Cited by 35 publications
(43 citation statements)
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“…It has been widely described that hormone-associated factors are able to enhance the host immune response during a parasite infection, as it is well known for murine strongyloidiasis, experimental cysticercosis, trypanosomiasis in rats, murine trichuriasis, and trichinosis in guinea pigs, among many others [21, 2629]. For the specific case of experimental taeniosis in hamsters, it has been previously reported that an intestinal inflammatory response accompanied by a local expression of Th1 and Th2 cytokines are involved in parasite elimination [21, 30].…”
Section: Discussionmentioning
confidence: 99%
“…It has been widely described that hormone-associated factors are able to enhance the host immune response during a parasite infection, as it is well known for murine strongyloidiasis, experimental cysticercosis, trypanosomiasis in rats, murine trichuriasis, and trichinosis in guinea pigs, among many others [21, 2629]. For the specific case of experimental taeniosis in hamsters, it has been previously reported that an intestinal inflammatory response accompanied by a local expression of Th1 and Th2 cytokines are involved in parasite elimination [21, 30].…”
Section: Discussionmentioning
confidence: 99%
“…Proliferative activity increased in the crypts and the villous fusion, resulting in an apparent reduction in the number of intestinal epithelial cells. In addition, dexamethasone enhanced parasite fertility and proliferation, with dissemination of the larvae to other visceral organs, such as the spleen, kidneys, heart, liver and brain (Machado et al, 2011). Mice infected with S. venezuelensis and treated with dexamethasone showed increased blood neutrophil numbers and a reduction in eosinophil and mononuclear cell numbers in the blood, bronchoalveolar cells, and peritoneum when compared to S. venezuelensis infection in the absence of dexamethasone.…”
Section: Hyperinfection Syndrome In Experimental Modelsmentioning
confidence: 98%
“…Mice infected with S. venezuelensis and treated with dexamethasone showed increased blood neutrophil numbers and a reduction in eosinophil and mononuclear cell numbers in the blood, bronchoalveolar cells, and peritoneum when compared to S. venezuelensis infection in the absence of dexamethasone. In addition, dexamethasone impaired the host immune response, decreasing the production of cytokines such as tumour necrosis factor (TNF), interferon (IFN), interleukin-3 (IL-3), IL-4, IL-5, IL-10, and IL-12 in the lungs and circulating antibodies such as IgG, and IgE but increasing the overall parasite burden in the intestines and faeces (Machado et al, 2011).…”
Section: Hyperinfection Syndrome In Experimental Modelsmentioning
confidence: 99%
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“…Estima-se que de 30 a 100 milhões de pessoas estejam infectadas pelo parasito em todo o mundo (Olsen et al, 2009;WHO, 2014). No Brasil é uma doença negligenciada e sua ocorrência é estimada em 5,5% Costa-Cruz, 2011;Requena-Méndez et al, 2013), caracterizando o país como região hiperendêmica.…”
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