Two cases of adiaspiromycosis in the Japanese pika (Ochotona hyperborea yesoensis Kishida)     

H Taniyama  H Furuoka  T Matsui  T Ono 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1985,47(1):139-142

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Video tracking analysis of behavioral patterns during estrus in goats     

Natsumi ENDO  Larasati Puji RAHAYU  Toshiya ARAKAWA  Tomomi TANAKA 《The Journal of reproduction and development》2016,62(1):115-119

Here, we report a new method for measuring behavioral patterns during estrus in goats based on video tracking analysis. Data were collected from cycling goats, which were in estrus (n = 8) or not in estrus (n = 8). An observation pen (2.5 m × 2.5 m) was set up in the corner of the female paddock with one side adjacent to a male paddock. The positions and movements of goats were tracked every 0.5 sec for 10 min by using a video tracking software, and the trajectory data were used for the analysis. There were no significant differences in the durations of standing and walking or the total length of movement. However, the number of approaches to a male and the duration of staying near the male were higher in goats in estrus than in goats not in estrus. The proposed evaluation method may be suitable for detailed monitoring of behavioral changes during estrus in goats.  相似文献   

Distribution of inclusion bodies in tissues from 100 dogs infected with canine distemper virus     

Kubo T  Kagawa Y  Taniyama H  Hasegawa A 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2007,69(5):527-529

One hundred dogs that were positive for canine distemper virus antigen and inclusion bodies in the tonsils were examined for the distribution of inclusion bodies in various tissues. Inclusion bodies were found in the lungs (70 dogs), brains (20 dogs), urinary bladders (73 dogs), stomachs (78 dogs), spleens (77 dogs), and lymph nodes (81 dogs) of the dogs. Based on these results, the tonsils may be the most suitable tissue for detection of inclusion bodies in canine distemper.  相似文献   

Epithelial-mesenchymal transition and bi- and multi-nucleated trophoblast cell formation in ovine conceptuses during the peri-implantation period     

Ayami YAMADA  Kaito OHTSUKI  Natsumi SHIGA  Jonathan A. GREEN  Yuta MATSUNO  Kazuhiko IMAKAWA 《The Journal of reproduction and development》2022,68(2):110

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Immunohistochemical detection of apolipoprotein B-100 and immunoglobulins (IgA, IgM, IgG) in the splenic arteries of aging dogs     

Sako T  Uchida E  Kagawa Y  Hirayama K  Takahashi T  Nakade T  Niiyama M  Izumisawa Y  Taniyama H 《Veterinary pathology》2001,38(4):407-413

Accumulation of lipids and hyalinosis in the splenic arteries of aged dogs are frequently detected by routine histopathologic examinations. The purpose of this study was to pinpoint the localization of canine apolipoprotein B-100 (CApoB-100) and immunoglobulins (IgA, IgM, IgG) in the splenic arteries of aging dogs (n = 80) through the use of immunohistochemical techniques. CApoB-100 deposits were found in the subendothelial space, extracellular matrix, and atheromatous lesions in the tunica media of the arteries in dogs > or = 6 years of age. Foamy cytoplasm of the infiltrated macrophages was also CApoB-100 immunopositive. In dogs > or = 10 years of age, almost all central arteries were CApoB-100 immunopositive. Hyaline deposits within the wall were characterized by immunopositivity against canine IgA, IgM, IgG, and albumin. Lipid accumulation in splenic arteries may be an age-related lesion and a precursor of the atheromatous plaques associated with splenic hemorrhage and infarcts later in life. In addition, deposition of immunoglobulins, probably mediated by immune complexes, may play an important role in the development of canine vascular diseases similar to human disease.  相似文献   

Immunohistochemical evaluation of a malignant phecochromocytoma in a wolfdog   总被引：1，自引：0，他引：1  

Sako T  Kitamura N  Kagawa Y  Hirayama K  Morita M  Kurosawa T  Yoshino T  Taniyama H 《Veterinary pathology》2001,38(4):447-450

A malignant pheochromocytoma with multiple metastases was diagnosed in a 7-year-old male wolfdog that resulted from a cross between an eastern timber wolf (Canis lupus lycaon) and an Alaskan malamute. A yellowish white neoplastic mass approximately 10 cm diameter was found in the right adrenal gland. The neoplasm penetrated through the wall of the caudal vena cava. A diagnosis of pheochromocytoma was established by histopathologic and immunohistochemical procedures. Immunohistochemically, the neoplastic cells expressed chromogranin A, substance P, synaptophysin, Leu-7, protein gene product 9.5, methionine-enkephalin, S100 protein, and galanin. Multiple metastatic tumors were found in the kidneys, spleen, lungs, heart, and liver.  相似文献   

Classification of abomasal displacement in cows according to histopathology of the liver and clinical chemistry     

Komatsu Y  Itoh N  Taniyama H  Kitazawa T  Yokota H  Koiwa M  Ohtsuka H  Terasaki N  Maeno K  Mizoguchi M  Takeuchi Y  Tanigawa M  Nakamura T  Watanabe H  Matsuguchi Y  Kukino T  Honma A 《Journal of veterinary medicine. A, Physiology, pathology, clinical medicine》2002,49(9):482-486

Histopathological features of livers and blood chemical values in cows with abomasal displacement were investigated. Liver biopsy samples were collected during redressment operations in 92 cows with abomasal displacement, and the samples were stained with haematoxylin and eosin or periodic acid Schiff (PAS). Blood was collected for chemical tests. Livers were histopathologically divided into the following four types: normal histology cases (21%), fatty degeneration cases (36%), cloudy swelling cases (19%) and fatty degeneration cases with cloudy swelling (24%). The number of PAS-positive samples was significantly higher in the normal histology group and significantly lower in the severe fatty degeneration group and severe cloudy swelling group. Cows with fatty degeneration had significantly higher levels of serum 3-hydroxybutyric acid, non-esterified fatty acid and aspartate aminotransferase than did those with cloudy swelling or normal histology. The results indicate that the morbid conditions of cows with abomasal displacement can be classified into four types.  相似文献   

A pleomorphic adenoma of the lacrimal gland in a dog   总被引：1，自引：0，他引：1  

Hirayama K  Kagawa Y  Tsuzuki K  Kotani T  Azuma Y  Yoshino T  Taniyama H 《Veterinary pathology》2000,37(4):353-356

A 13-year-old female mongrel dog had a pleomorphic adenoma of the lacrimal gland in the right upper orbit. The tumor measured 3.8 x 3.0 x 3.3 cm, appeared white, round, and firm, and pressed the right globe and surrounding tissues. Histopathologically, the tumor had a thin connective tissue capsule and was composed of tubules with two cell types, some resembling luminal epithelial cells making up the tubular structures and the other of myoepithelial cells. Epithelial tubules were disposed in an adenomatous fashion and separated from each other by proliferating pleomorphic myoepithelial cells. Immunohistochemically, large numbers of the luminal epithelial cells revealed an immunopositive reaction against keratin/cytokeratin (AE1/AE3), and some epithelial cells reacted against cytokeratin 14. Spindle-shaped myoepithelial cells revealed an immunopositive reaction against cytokeratin 14, alpha-smooth muscle actin, and vimentin. A small number of myoepithelial cells reacted against desmin. S-100 protein immunopositivity was frequently found in luminal epithelial cells and rarely in the pleomorphic myoepithelial cells. Glial fibrillary acidic protein positivity was commonly found in myoepithelial cells, myxoid matrices, and intracystic materials, but not in luminal epithelial cells.  相似文献   

Histological and histochemical observations on the muscular lesions in a newborn calf with hydranencephaly     

H Taniyama  H Furuoka  T Matsui  T Ono 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1985,47(1):151-155

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Effect of aging in adult Monochamus alternatus (Coleoptera: Cerambycidae) on the susceptibility of the beetle to Beauveria bassiana (Ascomycota: Hypocreales)     

Noritoshi Maehara  Natsumi Kanzaki 《Journal of Forest Research》2014,19(3):357-360

To clarify the effect of aging in adult Monochamus alternatus on the susceptibility of the beetle to Beauveria bassiana, we inoculated the fungus into adult beetles 0, 3, 7, 14, and 28 days after emergence. The number of days from B. bassiana inoculation to M. alternatus death increased with the number of days from beetle emergence to inoculation up to 14 days after emergence. This indicated that the susceptibility of adult beetles to the fungus decreased with aging. However, B. bassiana-inoculated beetles 28 days after emergence died earlier after inoculation than those inoculated with the fungus 14 days after emergence; i.e., the beetle’s susceptibility to the fungus increased again. We considered this phenomenon to be the result of senescence of adult beetles. We concluded that the susceptibility of M. alternatus to B. bassiana decreased first and then increased again with aging.  相似文献