Shigehisa Habe

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Human cases of paragonimiasis have been reported in Lao People's Democratic Republic from several provinces, however, detailed descriptions of a focus of transmission including parasites species and intermediate hosts are lacking. Field investigations were carried out between February and July 2004 in three neighboring villages of the province of Vientiane.(More)
Paragonimosis is an important food-borne zoonosis especially in Asian countries. Among Paragonimus species, Paragonimus westermani followed by P. skrjabini complex are the major pathogens for human paragonimosis in Asia. In addition, P. heterotremus is an important pathogen in southern China and the Indochina Peninsula and is the only proven species to(More)
We examined C-banded karyotypes of six species of lung flukes from Japan and Korea; diploid and triploidParagonimus westermani, P. miyazakii, P. ohirai, P. iloktsuenensis andP. sadoensis, with special reference to their karyotypic diversification. C-band analysis between the diploid and the triploidwestermani revealed that two of three homologues of the(More)
An enzyme analysis of diploid and triploid Paragonimus westermani was conducted using starch gel electrophoresis. In total, 16 enzymes, probably encoded by 18 loci, were studied for 3 populations of the diploid form sampled from 2 localities, and 4 populations of the triploid form from 4 localities. Comparison of the enzymes of the triploid and the diploid(More)
During an epidemiological survey for Paragonimus and paragonimosis in northern Vietnam, we found extremely large excysted metacercariae (2.50 ± 0.14 mm in length and 0.72 ± 0.08 mm in width; mean ± standard deviation of 20 samples) in mountainous crabs, Potamiscus mieni. Adult worms were successfully obtained by intraperitoneal injection with those large(More)
The C-banding pattern, location of telomere sequence and chiasma frequency of four species of the Schistosoma japonicum complex were compared with those of two African species, Schistosoma mansoni and Schistosoma haematobium. In the six species, C-banding patterns of seven autosomes and the two sex chromosomes (Z and W) showed relatively species-specific(More)
A total of 18 enzymes (encoded by 20 loci) fromParagonimus heterotremus collected at a local area in Saraburi, Thailand, were electrophoretically compared with those from the three Japanese speciesP. ohirai, P. miyazakii andP. westermani using horizontal starchgel electrophoresis. Relative genetic distances between these species were quantified. The ThaiP.(More)
The transcriptional products of Fasciola gigantica genes encoding cathepsin B proteases were cloned from adult, newly excysted juvenile (NEJ), and metacercarial stages. The obtained cDNAs were named FG cat-B1, FG cat-B2, and FG cat-B3. The deduced amino acid sequences of the encoded proteases have identities ranging from 64 to 79%. Sequence comparison with(More)
The Schistosoma japonicum group and S. sinensium utilize intermediate snail hosts belonging to the genera Oncomelania and Tricula (Gastropoda: Pomatiopsidae). In the present study, partial sequences of the mitochondrial 12S rRNA gene from 7 subspecies of O. hupensis, two species of Tricula (T. bollingi and T. humida) and O. minima were examined to infer a(More)