Learn More
We investigated the induction of T-helper cell subsets during the course of lethal or nonlethal blood-stage Plasmodium yoelii 17X infection in C57BL/6 mice, which are relatively susceptible to these intraerythrocytic parasites. C57BL/6 mice infected with the nonlethal variant (PyNL) showed a moderate level of parasitemia and resolution of primary acute(More)
 We demonstrated the experimental vertical transmission of Borna disease virus (BDV) in pregnant BALB/c mice. Giessen strain He/80 of BDV was used in the present study. Six six-week-old mice were inoculated intraperitoneally with 105 50% tissue culture infective doses (TCID50), and were bred immediately. Four pregnant mice were sacrificed under anaesthesia(More)
Probiotic bacteria such as lactobacilli and bifidobacteria are considered to be non-pathogenic and non-toxigenic on the basis of long years of safe usage. However, some species of lactobacilli are thought to be associated with the development of dental caries. The purpose of the present study was to examine the cariogenicity of the probiotic bacterium(More)
Anemia is a major clinical sign of Japanese bovine theileriosis caused byTheileria sergenti. To investigate the possible factors causing anemia in cattle, we developed a clearance test for bovine erythrocytes (Bo-RBC) in severe combined immunodeficient (SCID) mice. Clearance of Bo-RBC in the SCID mice was significantly accelerated when the mice were(More)
We have previously developed the Bo-RBC-SCID mouse model forTheileria sergenti infection. In the present study, this model was further examined to delineate the mode of parasite infection. The Bo-RBC-SCID mice were prepared by periodically transfusing uninfected bovine erythrocytes (Bo-RBCs) into splenectomized SCID mice via the intraperitoneal (i.p.)(More)
Humoral and cellular immune defence factors involved in controlling blood-borne Pasteurella multocida were investigated in turkeys by the passive transfer of immune serum or by the treatment with macrophage-activating agents. The treated and untreated birds were intravenously inoculated with a virulent strain of P multocida, and the viable bacteria in the(More)
The role of the capsule in the pathogenesis of fowl cholera was studied in turkeys. Avian Pasteurella multocida P-1059 was used in an encapsulated form, an enzymatically decapsulated form, and a mutant form lacking capsule-productivity (strain T-325). These forms were inoculated intravenously into normal or immune turkeys, and the numbers of viable bacteria(More)
INTRODUCTION Streptococcus mutans is considered to be one of the pathogens that cause infective endocarditis. The purpose of the present study was to examine the properties of S. mutans with regard to platelet aggregation by focusing on its high molecular protein antigen c (PAc). METHODS The platelet aggregation properties of six clinical strains and one(More)
We performed an intentional replantation of an immature lower incisor that had a refractory peri-apical lesion. The incisor was extracted and the peri-apical lesion was removed by curettage. The root canal of the tooth was then rapidly irrigated, and filled with a calcium hydroxide and iodoform paste (Vitapex(R)), after which the tooth was fixed with an(More)
The effect of heat treatment was examined against oocysts of Cryptosporidium parvum, Cryptosporidium muris and chicken Cryptosporidium sp. isolated in Japan. The oocysts of these species were exposed at 50, 55, 60 and 70 degrees C for 5, 15, 30 and 60 sec in water bath, respectively. To determine the infectivity of heated oocysts, the nice and chickens were(More)