Consulta: creatorFacets:"SATO, Fumio"
Registros recuperados: 5
Data/hora: 07/06/2024 08:00:08

Survey on Tick-Borne Pathogens in Thoroughbred Horses in the Hidaka District, Hokkaido, Japan
Provedor de dados: 19
Autores: YBAÑEZ, Adrian Patalinghug; SATO, Fumio; NAMBO, Yasuo; FUKUI, Takashi; MASUZAWA, Toshiyuki; OHASHI, Norio; MATSUMOTO, Kotaro; KISHIMOTO, Toshio; INOKUMA, Hisashi; 松本, 高太郎; 猪熊, 壽.
A total of 87 Thoroughbred horses and 10 ixodid ticks from a ranch in Hidaka district, Hokkaido were tested for tick-borne diseases. Using the indirect fluorescent antibody (IFA) method, 3.4, 92.0 and 97.7% of the horses showed antibody titers of ≥80 against Anaplasma phagocytophilum, Rickettsia helvetica, and Borrelia garinii, respectively. This is the first report of infection with the 3 pathogens in horses in Japan. Using PCR, DNAs from the peripheral blood of all horses were found negative with any Anaplasma, Rickettsia and Borrelia spp., while those from Haemaphysalis megaspinosa ticks were found positive for Anaplasma sp. closely related to A. phagocytophilum in Japan, and A. bovis. B. japonica was also detected in an H. flava tick for the first time.
Palavras-chave: Anaplasma sp.; Borrelia sp.; Rickettsia sp.; Thoroughbred horse; Tick-borne diseases.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3840

A clinical case of equine fungal placentitis with reference to hormone profiles and ultrasonography
Provedor de dados: 19
Autores: MURASE, Harutaka; NIWA, Hidekazu; KATAYAMA, Yoshinari; SATO, Fumio; HADA, Tetsuro; NAMBO, Yasuo.
Fungal placentitis is an infectious disease inducing abortion in pregnant mares. In the present report, we describe a field case of abortion caused by fungal placentitis with consecutive examinations. The progesterone level and combined thickness of the uterus and placenta (CTUP) were abnormal before the onset of clinical signs. Additionally, the estradiol level started to change before the appearance of clinical signs. Abnormal serum amyloid A values and an abnormal fetal heart rate were observed after the onset of clinical signs. The present report demonstrates that the progesterone level and CTUP may be adequate as early diagnostic markers of fungal placentitis and bacterial infection. Endocrinological evaluation based on cutoff values or serial...
Palavras-chave: Abortion; Equine; Fungal infection; Placentitis.
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4289

Anti-Müllerian hormone as an indicator of hemi-castrated unilateral cryptorchid horses
Provedor de dados: 19
Autores: MURASE, Harutaka; SAITO, Shigeaki; AMAYA, Tomohiko; SATO, Fumio; BALL, Barry Allen; NAMBO, Yasuo.
Anti-Müllerian hormone (AMH), a glycoprotein secreted from the fetal testis, is responsible for regression of the Müllerian duct in the male fetus. The aim of this study was to evaluate the usefulness of serum AMH as a biomarker for diagnosis of cryptorchidism in horses. Serum AMH concentrations were measured in intact stallions, hemi-castrated unilateral cryptorchid stallions, and geldings. In addition, expression of AMH was characterized in cryptorchid testes by immunohistochemistry. Serum AMH was detected in intact stallions (n=11, 13.3 ± 1.8 ng/ml) and in hemi-castrated cryptorchid stallions (n=8, 17.6 ± 3.0 ng/ml), but not in geldings (n=6, all data were below the limit of detection). Immunolabeling for AMH was detected in Sertoli cells of undescended...
Palavras-chave: Anti-Müllerian hormone (AMH); Cryptorchidism; Equine; Testis.
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4151

Experimental investigation of bone mineral density in Thoroughbreds using quantitative computed tomography
Provedor de dados: 19
Autores: YAMADA, Kazutaka; SATO, Fumio; HIGUCHI, Tohru; NISHIHARA, Kaori; KAYANO, Mitsunori; SASAKI, Naoki; NAMBO, Yasuo.
Bone mineral density (BMD) is one of the indications of the strength and health. BMD measured by quantitative computed tomography (QCT) was compared with that measured by dual energy X-ray absorptiometry (DXA) and radiographic bone aluminum equivalence (RBAE). Limbs were removed from horses that had been euthanized for reasons not associated with this study. Sixteen limbs (left and right metacarpals and metatarsals) from 4 horses were used to compare BMD as measured by QCT with those measured by DXA and RBAE. There was a strong correlation between BMD values measured by QCT and those measured by DXA (R2=0.85); correlation was also observed between values obtained by QCT and those obtained by RBAE (R2=0.61). To investigate changes in BMD with age, 37 right...
Palavras-chave: Bone mineral density; Dual energy X-ray absorptiometry; Quantitative computed tomography; Radiographic bone aluminum equivalence; Thoroughbred.
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4182

Evaluation of Motion Correction Processing in Equine Bone Scintigraphy by Scheffé’s Method of Paired Comparisons
Provedor de dados: 19
Autores: YAMAGUCHI, Toshiro; ENDO, Yoshiro; NAMBO, Yasuo; SATO, Fumio; SASAKI, Naoki; YAMADA, Kazutaka; 南保, 泰雄; 佐々木, 直樹; 山田, 一孝.
Equine bone scintigraphy is usually performed with horses in standing position under sedation. However, swaying motion often leads to poor-quality images. To examine the usefulness of motion correction (MC) processing, equine bone scintigrams were evaluated using Scheffé’s method of paired comparisons. A significant difference in evaluation scores was detected by analysis of variance (F test, P&lt;0.01). According to all observers, Yardstick analysis scores were higher for images use of MC processing than for those no use of MC processing, for all parts. Overall scores of 5 observers were as follows: without MC 100% acquisition time (AT, lowest), use of MC with 25% AT, MC 50% AT, MC 75% AT and MC 100% AT (highest). Thus, MC processing shortens AT in equine...
Palavras-chave: Bone scintigraphy; Equine; Motion correction; Scheffé’s method of paired comparisons.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3894