| geographical variation of the liver fluke, clonorchis sinensis, from korea and china based on the karyotypes, zymodeme and dna sequences. | genetic characterization was carried out in order to reveal the geographical variations of the oriental liver fluke, clonorchis sinensis (trematoda: opisthorchiidae), collected in korea and china. the chromosome number was 2n=56 in both korean (kimhae) and chinese (liaoning) flukes, and chromosomes were divided into two groups based on their sizes; consisting of 8 pairs of large and 20 pairs of small chromosomes. however, the karyotypes showed some differences between korean and chinese flukes. ... | 2001 | 12041573 |
| epidemiological investigation on clonorchis sinensis in human population in an area of south china. | to detect the prevalence of clonorchis sinensis, one of the important helminthes in the human population of the guangxi region where schistosoma japonicum was endemic but eliminated in the late 1980s, the kato-katz thick smear technique was used for examining fecal samples from selected townships in hengxian county. among 1,552 people examined, 491 (31.6%) were found infected with c. sinensis. by counting eggs per gram feces (epg), it was found that the light, moderate, and heavy intensities of ... | 2003 | 14583642 |
| human infections with liver and minute intestinal flukes in guangxi, china: analysis by dna sequencing, ultrasonography, and immunoaffinity chromatography. | the prevalence of liver and intestinal fluke infections was determined by surveying inhabitants of hengxuan, fusui, and shanglin villages which were known to be endemic for liver flukes in guangxi, china in may 2010. a total of 718 people were examined for helminth eggs by the kato-katz thick smear technique, ultrasonography, immunoaffinity chromatography, and dna sequencing. the overall egg positive rate was found to be 59.6% (28.0-70.6%) that included mixed infections with liver and intestinal ... | 2012 | 23230343 |
| characterisation of fasciola species from mainland china by its-2 ribosomal dna sequence. | isolates of fasciola (platyhelminthes: trematoda: digenea) from different host species and geographical locations in mainland china were characterised genetically. the second internal transcribed spacer (its-2) of nuclear ribosomal dna (rdna) was amplified from individual trematodes by polymerase chain reaction (pcr), and the representative amplicons were cloned and sequenced. the length of the its-2 sequences was 361-362bp for all chinese fasciola specimens sequenced. while there was no variati ... | 2004 | 15019145 |