Dietary L-arginine (4%) significantly reduced fecal oocyst shedding in athymic nude mice chronically infected with Cryptosporidium parvum. This effect appeared to be due to an increase in host nitric oxide (NO) production as it was not observed in arginine-supplemented animals administered the NO
OBJECTIVE
This study investigated the role of L-arginine supplementation to undernourished and Cryptosporidium parvum-infected suckling mice.
METHODS
The following regimens were initiated on the fourth day of life and injected subcutaneously daily. The C. parvum-infected controls received L-arginine
Four-day-old BALB/c mice were infected by the oral administration of 50,000 Cryptosporidium parvum oocysts, and the resulting infection was scored histologically and by counting colonic oocysts. Infection occurred in the ileum and proximal colon (but not duodenum and jejunum), peaked on days 14 to
Cryptosporidium parvum is a zoonotic protozoan that can cause a life-threatening gastrointestinal syndrome in children and in immunocompromised adults. Currently, the only approved drug for treatment of Cryptosporidium infections in humans is nitazoxanide, but it is not effective in
Apolipoliprotein E (apoE), a critical targeting protein in lipid homeostasis, has been found to have immunoinflammatory effects on murine models of infection and malnutrition. The effects of apoE in undernourished and Cryptosporidium parvum-infected mice have not been investigated. In order to study
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