| detection of ehrlichial dna in small rodents captured in a woodland area of hokkaido, the northernmost island of japan, where lyme disease is endemic. | the ehrlichial gene was detected in small rodents trapped in a lyme disease-endemic area in hokkaido, the northernmost island of japan. primer pairs of 16s rdna targeting the genus ehrlichia and other regions of the 16s rdna specific for e. chaffeensis and e. muris were used for identification. the dna fragment specific for 16s rdna of ehrlichia spp. was detected in 4 of 94 apodemus speciosus mice (positive rate: 4.3%) and 5 of 73 clethrionomys rufocanus bedfordiae mice (positive rate: 6.8%). th ... | 2005 | 16249629 |
| on the breeding of cage reared red-backed vole, clethrionomys rufocanus bedfordiae (thomas). | | 1973 | 4807735 |
| protein polymorphisms and their genetic control in the red-backed vole, clethrionomys rufocanus bedfordiae. | twenty enzymatic and non-enzymatic proteins in a wild population of red-backed voles, cletrionomys rufocanus bedfordiae, were investigated by electrophoresis. seven enzymatic and non-enzymatic protein systems were found to be polymorphic. breeding data indicated that the mode of inheritance of the enzyme systems me-1, me-2, gpd and est were consistent with a mendelian law. two systems, 6 pgd and sod, were estimated to be genetically controlled from the electrophoretic patterns and mother-offspri ... | 1984 | 6388427 |
| the effect of kinship on spacing among female red-backed voles, clethrionomys rufocanus bedfordiae. | i examined the effect of relatedness on spatial organization and reproduction in enclosed populations of red-backed voles (clethrionomys rufocanus bedfordiae) in 1984 and 1985. enclosures with low and high coefficients of relatedness among females were established, and the proximity and overlap of the home ranges of these females were recorded before and after the introduction of males. the following conclusion were reached: 1. the number of females that established home ranges and gave birth to ... | 1987 | 28312906 |
| a time series and geographical analysis of population dynamics of the red-backed vole in hokkaido, japan. | a time series and geographical analysis of the long term (25-years and 16-years) census data of the red-backed vole, clethrionomys rufocanus bedfordiae, populations in hokkaido, japan was carried out. eighty seven populations from all over hokkaido were grouped into the following 4 types according to their flucturation patterns: type a: low density-constant type; type b: medium density-gradual increase type; type c: medium density-wavy change type; type d: high density-large amplitude type. the ... | 1987 | 28311519 |
| [laboratory breeding of the red-backed vole (clethrionomys rufocanus bedfordiae)]. | laboratory matings were attempted to establish breeding colonies of red-backed voles (clethrionomys rufocanus bedformidae) as experimental animals. for these mating, 10 pairs of red-backed voles which were captured in the tohbetsu region of hokkaido, japan and their litters were used. in the results for two years, 1987 to 1988, the rates of pregnancy, birth and weaning were 35.4%, 94.5% and 79.5%, respectively. the mean litter size was 5:1 +/- 1.6 with a range of 1 to 9. the mean gestation perio ... | 1992 | 1315690 |
| polymorphic microsatellite dna markers in the grey red-backed vole clethrionomys rufocanus bedfordiae. | | 1995 | 7711951 |
| a hierarchical bayesian model to estimate the unobservable predation rate on sawfly cocoons by small mammals. | predation by small mammals has been reported as an important mortality factor for the cocoons of sawfly species. however, it is difficult to provide an accurate estimate of newly spun cocoons and subsequent predation rates by small mammals for several reasons. first, all larvae do not spin cocoons at the same time. second, cocoons are exposed to small mammal predation immediately after being spun. third, the cocoons of the current generation are indistinguishable from those of the previous gener ... | 2015 | 25691994 |
| isolation of pathogenic yersinia enterocolitica 1b/o:8 from apodemus mice in japan. | yersinia enterocolitica was isolated from 15.7% (88/560) of wild rodents captured in 15 prefectures in japan. prevalences by rodent species were 18.0% (70/388) in japanese field mice (apodemus speciosus), 20% (14/71) in small japanese field mice (apodemus argenteus), and 11% (4/38) in gray red-backed vole (myodes rufocanus bedfordiae), suggesting that these rodent species are important reservoirs of y. enterocolitica. although most of the isolates were identified as biotype 1a, the pathogenic bi ... | 2015 | 25380368 |
| isolation of hokkaido virus, genus hantavirus, using a newly established cell line derived from the kidney of the grey red-backed vole (myodes rufocanus bedfordiae). | hantaviruses belong to the family bunyaviridae and are maintained in wild rodents. although vero e6 cells, which originate from african green monkey kidney, are used widely in hantavirus research, isolation of hantaviruses from this cell line is difficult. to develop an efficient method of propagation and isolation of hantaviruses we established a novel cell line, mrk101, derived from the kidney of the grey red-backed vole (myodes rufocanus bedfordiae), the natural host of hokkaido virus (hokv). ... | 2012 | 22791608 |
| modes of hantavirus transmission in a population of clethrionomys rufocanus bedfordiae inferred from mitochondrial and microsatellite dna analyses. | to elucidate the mode of transmission of puumala-related hantavirus in a population of gray red-backed voles, clethrionomys rufocanus bedfordiae, in hokkaido, japan, we analyzed the kin structure and dispersal patterns of individual voles using microsatellite and mitochondrial dna markers. siblings or dam/offsprings was identified within the population based on the relatedness calculation with the microsatellite data. the pairwise relatedness values obtained could reveal kinship among all vole i ... | 2004 | 15098108 |
| serodiagnosis of alveolar echinococcosis: detection of antibody against em18 in patients and rodents. | an international collaborative study on echinococcosis has been carried out for the establishment of a simple means for differential serodiagnosis of alveolar echinococcosis (ae) from other parasitic diseases including cystic echinococcosis (ce). the main candidate epitope is em18 (previously undescribed epitope of a low molecular weight protein of 18.5 kda). evaluation of the usefulness of em18 is introduced in this review paper. serum samples showing antibody response against em18 are exclusiv ... | 1997 | 9656361 |
| developmental study of taenia mustelae in the intermediate and definitive hosts, with a note on the life cycle of t. mustelae in hokkaido, japan. | the gray red-backed vole clethrionomys rufocanus bedfordiae and laboratory mice were fed eggs of taenia mustelae via a stomach tube. fully developed metacestodes were recovered from the voles fed the eggs at 25 days postinfection; voles were considered to be more suitable intermediate hosts for t. mustelae than laboratory mice. the prepatent period for the metacestodes from voles was shorter (16 days) in the mink than previously reported. a field survey was performed on hepatic cestodes of small ... | 1996 | 8885900 |
| reservoir competence of the vole, clethrionomys rufocanus bedfordiae, for borrelia garinii or borrelia afzelii. | in autumn of 1994 and spring of 1995, we examined borrelia infection among microtinae voles, clethrionomys rufocanus bedfordiae, in hokkaido, japan. in bsk culturing of the earlobe tissues of 45 c. rufocanus bedfordiae captured, twelve rodents were positive for borrelia. eight isolates were used for the polymerase chain reaction (pcr) and the restriction fragment length polymorphism (rflp) analysis. according to the results, these isolates were classified into b. garinii or b. afzelii. it is con ... | 1996 | 8871531 |
| developmental and morphological characteristics of taenia taeniaeformis (batsch, 1786) in clethrionomys rufocanus bedfordiae and rattus norvegicus from different geographical locations. | developmental and morphological characteristics of 3 isolates of taenia taeniaeformis isolated from clethrionomys rufocanus bedfordiae in abuta (70 km southwest of sapporo), japan (isolate acr), and from rattus norvegicus in sapporo, japan (isolate srn) and kuala lumpur, malaysia (isolate krn) were compared. eggs of 3 isolates were administered to several species of rodents. isolate acr infected c. rufocanus bedfordiae, apodemus speciosus, and apodemus argenteus, but not rats or mice, whereas is ... | 1994 | 8195949 |
| intraspecific variation of taenia taeniaeformis as determined by various criteria. | the intraspecific variation of four laboratory-reared isolates of taenia taeniaformis the srn and krn isolates from norway rats, rattus norvegicus, captured in japan and malaysia, respectively; the bmm isolated from a house mouse, mus musculus, captured in belgium; and the acr isolate from a gray red-backed vole, clethrionomys rufocanus bedfordiae, captured in japan was examined by various criteria. eggs of each of the four isolates were orally inoculated into several species of intermediate hos ... | 1995 | 7731915 |
| antibody responses in the wild vole, clethrionomys rufocanus bedfordiae, naturally infected with echinococcus multilocularis by western blotting. | antibody responses against crude antigens and the two (em18 and em16) epitopes of echinococcus multilocularis were analysed by western blotting using sera from the wild vole, clethrionomys rufocanus bedfordiae (crb), which were captured in hokkaido, japan and found to have been naturally infected with eggs, and compared with those in patients of ahd and mice experimentally infected with protoscoleces of this parasite. antibody responses in the wild were demonstrated most clearly with anti-crb-ig ... | 1994 | 7530265 |
| occurrence of yersinia enterocolitica in wild animals. | yersinia species were isolated from 16 of 495 small wild animals and from 1 of 38 foxes. the animals were trapped in seven regions of hokkaido, japan. of the 17 strains isolated, 9 were yersinia enterocolitica o6; 2 were y. enterocolitica o5a; 1 was y. enterocolitica, o4; 1 was y. enterocolitica o9; 1 was yersinia pseudotuberculosis ivb; and 3 were sucrose-negative strains. yersinia pestis was not isolated. the o6 organism was most prevalent in large red-back mice (clethrionomys rufocanus bedfor ... | 1981 | 7224628 |
| epidemiological studies of hemorrhagic fever with renal syndrome (hfrs) related virus infection among urban rats in hokkaido, japan. | seroepidemiological studies of hemorrhagic fever with renal syndrome (hfrs) virus infection were carried out among urban rats (rattus norvegicus and rattus rattus) and small field rodents in hokkaido, japan. an urban rat colony that was seropositive to sr-11 strain of hfrs virus (laboratory rat origin) was demonstrated in february 1983 at a dumping ground area of kami-iso town near hakodate port. an hfrs-related virus, named ki-262 strain, was isolated from the lung tissue of a seropositive rat ... | 1986 | 2871823 |
| frenkelia sp. from the red-backed vole, clethrionomys rufocanus bedfordiae, in hokkaido, japan. | | 1988 | 3286944 |
| complete life cycle of the canid tapeworm, echinococcus multilocularis, in laboratory rodents. | mongolian gerbils, meriones unguiculatus, when treated at intervals of 2-6 days with prednisolone tertiary butyl acetate, sustained infection with adult echinococcus multilocularis in the small intestine, with the tapeworm exhibiting normal strobilation and egg production as in the natural canid host. host age is critical for the survival of the tapeworm in normal gerbils; parasites survive for only 2 days in 20-wk-old animals, 4 days in 4-wk-old animals, but at least 7 days in 3-wk-old animals. ... | 1990 | 2253847 |