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Efficacy of alpha-cyclodextrin against experimental cryptosporidiosis in neonatal goats.

Abstract
The efficacy of orally administered tablets containing alpha-cyclodextrin, an excipient used in the pharmaceutical industry with demonstrated anticryptosporidial activity in vitro and in neonatal mice, was evaluated in neonatal goat kids. The formulation was evaluated for hardness and was subjected to in vitro drug release studies. Twenty goat kids were orally inoculated with 10(6) oocysts of C. parvum within the first 6 days of age. Half of the animals were treated by oral administration of four tablets of alpha-cyclodextrin/day (500 mg/kg of body weight) for six consecutive days, the treatment beginning on the day of inoculation. Infection was monitored by daily examination of faecal samples from the first day to 25 days post-inoculation. The criteria studied in evaluating efficacy were: oocyst shedding, presence of diarrhoea and weight gain at 15 and 25 days post-inoculation. alpha-cyclodextrin was effective when given at the beginning of infection: there was a longer pre-patent period, a reduction in the patent period and a decrease in the intensity of infection, these differences being statistically significant (P < 0.05) compared with untreated neonatal kids. Moreover, except in one animal, the diarrhoea was prevented in infected neonatal kids. Animals from both groups increased the body weight and no significant differences were seen between the two groups.
AuthorsJosé Antonio Castro-Hermida, Isabelle Pors, Francisco Otero-Espinar, Asteria Luzardo-Alvarez, Elvira Ares-Mazás, Christophe Chartier
JournalVeterinary parasitology (Vet Parasitol) Vol. 120 Issue 1-2 Pg. 35-41 (Feb 26 2004) ISSN: 0304-4017 [Print] Netherlands
PMID15019141 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Cyclodextrins
  • alpha-Cyclodextrins
  • alpha-cyclodextrin
Topics
  • Animals
  • Animals, Newborn
  • Cryptosporidiosis (drug therapy, parasitology, veterinary)
  • Cryptosporidium parvum
  • Cyclodextrins (pharmacology)
  • Diarrhea (parasitology, veterinary)
  • Feces (parasitology)
  • Female
  • Goat Diseases (drug therapy, parasitology)
  • Goats
  • Male
  • Parasite Egg Count (veterinary)
  • Weight Gain (drug effects)
  • alpha-Cyclodextrins

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