Quantitative Evaluation of Infectivity Change of Cryptosporidium parvum after Gamma Irradiation
The Korean Journal of Parasitology
; : 7-11, 2009.
Article
em En
| WPRIM
| ID: wpr-53286
Biblioteca responsável:
WPRO
ABSTRACT
Cryptosporidium parvum is a well-known waterborne and opportunistic intracellular protozoan parasite that causes diarrheal illness. In this study, we quantitatively investigated reduction of the infectivity of C. parvum after gamma irradiation and repair of the infectivity during incubation time after irradiation. C. parvum oocysts were subjected to gamma irradiation at various doses (1, 5, 10, and 25 kGy), and the in vitro infectivity was measured by real-time PCR every day up to 7 days after irradiation. The in vitro infectivity of C. parvum on human ileocecal adenocarcinoma cells (HCT-8) was effectively reduced (> 2 log(10)) by irradiation at 10 kGy or more. However, in the experiment to find out repair of the infectivity, recovery was not noted until day 7 post-incubation.
Palavras-chave
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Virulência
/
Sobrevivência Celular
/
Cryptosporidium parvum
/
Criptosporidiose
/
Oocistos
/
Linhagem Celular Tumoral
/
Raios gama
/
Camundongos Endogâmicos C57BL
Limite:
Animals
/
Female
/
Humans
Idioma:
En
Revista:
The Korean Journal of Parasitology
Ano de publicação:
2009
Tipo de documento:
Article