| studies on the use of cobalt-60 gamma irradiation to control infectivity of clonorchis sinensis metacercariae. | the purpose of the present study was to observe the survival and development of clonorchis sinensis metacercariae in their final hosts after cobalt-60 gamma irradiation of isolated metacercariae or the parasite in fish. guinea pigs or albino rats were orally infected with irradiated metacercariae by gavage. bioassay, fecal examination for ova, and necropsy of infected animals, were the methods used for the estimation of minimum effective dose of gamma irradiation to control infectivity of the me ... | 1992 | 1523482 |
| ultrastructural changes in the biliary tracts of guinea-pigs infected with clonorchis sinensis. | | 1973 | 4720911 |
| [effect of gamma-irradiation on infectivity of clonorchis sinensis metacercariae]. | the purpose of the present study was to observe the survival and development of clonorchis sinensis metacercariae in their final hosts after co-60 gamma irradiation exerting on both metacercariae isolated or in fish. guinea pigs or albino rats were orally infected by gavage. bio-assay, fecal examination for ova and dissection of infected animals were used for the estimation of minimum effective dose of gamma irradiation to control infectivity of clonorchis sinensis metacercariae. results showed ... | 1993 | 8403277 |
| worm recovery and precipitin antibody response in guinea pigs and rats infected with clonorchis sinensis. | guinea pigs (hartley strain) and rats (wistar strain) were each fed 200 and 100 clonorchis sinensis metacercariae, respectively. five animals from each species were sacrificed weekly between 1-8 weeks postinfection (wpi) and then at 12, 16, 20 and 30 wpi for collection of worms, bile and sera. the overall worm recovery rates for guinea pigs and rats were 18.7% and 12.4%, respectively. only one of the five rats examined at 20 wpi still harbored one worm, while all were worm-free at 30 wpi. by a d ... | 1998 | 10496161 |
| [egg-laying capacity of clonorchis sinensis in guinea pig and rabbit] | thirteen guinea pigs and 23 rabbits were challenged with 300 metacercariae of clonorchis sinensis each and the recovery of adult worms and egg counts in feces were compared at 11~13 weeks post-infection in guinea pigs and at 7~9 weeks post-infection in rabbits. the recovery rate of adult worm was 23.5 percent in guinea pigs and 20.l~30.5% in rabbits. the mean e.p.g. of these animals in above period of infection was 106 in guinea pigs and 121 in rabbits. when one hundredth of e.p.g. was expressed ... | 1979 | 12902764 |
| [ultrastructural changes of the hepatocytes and biliary epithelia due to clonorchis sinensis in guinea pigs] | the present study was undertaken to observe the changes of hepatocyte and biliary epithelium in the liver of guinea pigs infected with c. sinensis. ten guinea pigs infected with 500 metacercariae of c. sinensis each were reared for 11 weeks. after sacrifice, the liver tissues were processed both for conventional light microscopy and for electronmicroscopy. the following results were obtained by light and electronmicroscopic observation of these tissue preparations. 1. the dilatation of bile duct ... | 1978 | 12902769 |
| [the host-parasite relations of clonorchis sinensis in the mouse: studies on the development of c. sinensis in mouse] | it is well established that guinea pig, rabbit and rat are equally susceptible to experimental infection with the chinese liver fluke, clonorchis sinensis. however, little work has been done on the studies of the host-parasite relationships between the liver fluke and mouse host. the experiments were undertaken to investigate the susceptibility, development and sexual maturity of clonorchis sinensis in mouse host. the metacercariae of c. sinensis used in these experiments were isolated from the ... | 1968 | 12913544 |
| immuno-allergic studies on clonorchiasis. studies on clonorchis sinensis. 22. | | 1964 | 14293255 |
| susceptibility of experimental animals to reinfection with clonorchis sinensis. | the present study observed the resistance to reinfection with clonorchis sinensis in various experimental animals including mice, guinea pigs, rabbits, and dogs, as well as rats and hamsters. the resistance rates to reinfection in rats, mice, hamsters, guinea pigs, rabbits, and dogs were 79.7%, 58.0%, -12.6%, 54.8%, 62.6%, and 6.0%, respectively. worms recovered from reinfected rats and mice were immature, and significantly smaller than those from the primarily infected (p < 0.01), whereas those ... | 2006 | 16809966 |