| morphology and life cycle of schistosoma sinensium pao, 1959, from northwest thailand. | schistosoma sinensium pao, 1959, was first isolated from an unidentified snail in szechuan province, china, and was described on the basis of adult worms and eggs recovered from experimentally infected mice. we discovered snails, tricula bollingi davis, and rodents, rattus rattus (l.) and crocidura attenuata milne-edwards, infected with s. sinensium near fang in northwest thailand. adult worms were recovered from small veins immediately adjacent to the small intestine. eggs first appeared in the ... | 1989 | 2918446 |
| study on schistosoma sinensium in fang district, chiangmai province, thailand. | a survey on human infection and possible natural definitive host of schistosoma sinensium was carried out in fang district, chiangmai province, north thailand, where tricula bollingi snails which harbour cercariae of s. sinensium inhabits. stool examination of the people in the two villages along the stream, where t. bollingi were found, was by formalin-ether concentration technique and by stoll's method. the stools were found to be negative for s. sinensium eggs. field rats were also trapped an ... | 1984 | 6542252 |
| scanning electron microscopic study of the tegumental surface of adult schistosoma sinensium. | the sem study of tegumental surface of adult schistosoma sinensium reveals that the male tegument lacks tubercles or bosses; instead it is corrugated with small pits or perforated ridges. on the dorsal surface, spines are present whose number and size progressively increase towards the posterior end of the body. in addition, there are three types of papillae interspersed among the ridges and spines. the first type of papillae has crater-like holes surrounded by a circular doughnut-shaped elevati ... | 1983 | 6673117 |
| chromosomal differentiation of the schistosoma japonicum complex. | 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 and geographical (asian and african) differences. particularly, a plausible pathway of alteration of chromosome 2 revealed a direction from the ... | 2000 | 10731567 |
| molecular phylogenetic position of schistosoma sinensium in the genus schistosoma. | the status of schistosoma sinensium (samples from thailand and from sichuan, china) relative to other species of the genus schistosoma was investigated using dna sequences from the mitochondrial cytochrome c oxidase subunit 1 (co1) gene (partial) and the nuclear ribosomal dna second internal transcribed spacer 2 (its2). trees inferred from these sequences place s. sinensium as sister to the s. japonicum group and suggest a basal position in the clade utilizing snails of the family pomatiopsidae. ... | 2001 | 11551309 |
| schistosoma ovuncatum n. sp. (digenea: schistosomatidae) from northwest thailand and the historical biogeography of southeast asian schistosoma weinland, 1858. | schistosoma sinensium bao, 1958 was first isolated from an unidentified snail in sichuan province, pr china. this species was apparently rediscovered in chiang mai province, northwest thailand (baidikul et al., 1984); the definitive host was the rat rattus rattus and the intermediate host was the snail tricula bollingi. in this paper s. sinensium is rediscovered in sichuan province and compared with worms recovered from experimentally infected mice, which had been exposed to cercariae shed by t. ... | 2002 | 11721191 |
| [study on molecular phylogeny of schistosoma sinensium based on mitochondrial genes]. | to determine the phylogenetic position of schistosoma sinensium in the genus schistosoma using mitochondrial cytochrome c oxidase 1 (co1) and nadh dehydrogenase 1(nd1) as molecular markers. | 2002 | 12567532 |
| [study on molecular phylogeny of schistosoma sinensium based on nuclear ribosomal dna]. | to determine the phylogenetic relationships between schistosoma sinensium and other schistosomatid species using dna sequence data. two segments of the nuclear rdna repeat, the second internal spacer (its2) and large subunit (lsu/12s) were selected for sequencing. | 2001 | 12571964 |
| dna-sequence variation among schistosoma mekongi populations and related taxa; phylogeography and the current distribution of asian schistosomiasis. | schistosomiasis in humans along the lower mekong river has proven a persistent public health problem in the region. the causative agent is the parasite schistosoma mekongi (trematoda: digenea). a new transmission focus is reported, as well as the first study of genetic variation among s. mekongi populations. the aim is to confirm the identity of the species involved at each known focus of mekong schistosomiasis transmission, to examine historical relationships among the populations and related t ... | 2008 | 18350111 |