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Hiroki Sakai

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Walied Abdo; Ahmed El-Sawak; Akihiro Hirata; Hideki Nikami; Hiroki Sakai; Tokuma Yanai
Combined effects of organochlorine pesticides heptachlor and hexachlorobenzene on the promotion stage of hepatocarcinogenesis in rats.
Y Kato; K Maruo; T Mori; Mami Murakami; T L D R Nakagawa; Akihiro Hirata; Y Hoshino; Tokuma Yanai; Hiroki Sakai
The Class A macrophage scavenger receptor CD204 is a useful immunohistochemical marker of canine histiocytic sarcoma.
Akihiro Hirata; A Kaneko; H Nikami; Hiroki Sakai; K Shigematsu; J Suzuki; Y Tachikawa; K Eguchi; K Hashimoto; Tokuma Yanai
Spontaneous T/NK-cell lymphoma associated with simian lymphocryptovirus in a Japanese macaque (Macaca fuscata).

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2013: Walied Abdo; Ahmed El-Sawak; Akihiro Hirata; Hideki Nikami; Hiroki Sakai; Tokuma Yanai
Combined effects of organochlorine pesticides heptachlor and hexachlorobenzene on the promotion stage of hepatocarcinogenesis in rats.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2013;55():578-85.
2013: Y Kato; K Maruo; T Mori; Mami Murakami; T L D R Nakagawa; Akihiro Hirata; Y Hoshino; Tokuma Yanai; Hiroki Sakai
The Class A macrophage scavenger receptor CD204 is a useful immunohistochemical marker of canine histiocytic sarcoma.
Journal of comparative pathology 2013;148(2-3):188-96.
2013: Akihiro Hirata; A Kaneko; H Nikami; Hiroki Sakai; K Shigematsu; J Suzuki; Y Tachikawa; K Eguchi; K Hashimoto; Tokuma Yanai
Spontaneous T/NK-cell lymphoma associated with simian lymphocryptovirus in a Japanese macaque (Macaca fuscata).
Journal of comparative pathology 2013;148(1):43-6.
2013: N El-Habashi; E El-Nahass; Hideto Fukushi; A Hirata; Y Kato; J Kimura; Hiroki Sakai; Tokuma Yanai
An ocular infection model using suckling hamsters inoculated with equine herpesvirus 9 (EHV-9): kinetics of the virus and time-course pathogenesis of EHV-9-induced encephalitis via the eyes.
Veterinary pathology 2013;50(1):56-64.
2012: Yuta Suzuki; Takashi Umemura; Tokuma Yanai; Hiroki Sakai; Daisuke Hibi; Tomoki Inoue; Yuji Ishii; Meilan Jin; Yukio Kodama; Akiyoshi Nishikawa; Takehiko Nohmi; Kumiko Ogawa
Possible involvement of sulfotransferase 1A1 in estragole-induced DNA modification and carcinogenesis in the livers of female mice.
Mutation research 2012;749(1-2):23-8.
2012: Khaled El-Dakhly; El-Shaymaa El-Nahass; Akihiro Hirata; Masayoshi Kakogawa; Hiroki Sakai; Akiko Sudo; Tadayoshi Uchida; Tokuma Yanai
Helminth fauna of a Japanese golden eagle, Aquila chrysaetos japonica.
Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians 2012;43(4):966-70.
2012: Khaled El-Dakhly; El-Shaymaa El-Nahass; Akihiro Hirata; Kosei Inui; Masayoshi Kakogawa; Junpei Kimura; Hiroki Sakai; Nobutaka Urano; Tokuma Yanai
Occurrence of the subcutaneous mite, Hypodectes propus (Acarina: Hypoderatidae), in the grey heron, Ardea cinerea (Aves: Ciconiiformes) a new host record in Japan.
Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians 2012;43(4):953-5.
2012: A Murai; Hiroki Sakai; S Abou Asa; Akihiro Hirata; A Kodama; Tokuma Yanai
Immunohistochemical analysis of the Akt/mTOR/4E-BP1 signalling pathway in canine haemangiomas and haemangiosarcomas.
Journal of comparative pathology 2012;147(4):430-40.
2012: A Murai; T Murakami; Hiroki Sakai; S Shiihara; H Ueda; Akihiro Hirata; M Inoue; J Kimura; Tokuma Yanai
Pathological features of Mycobacterium kansasii infection in black bearded sakis (Chiropotes satanas).
Journal of comparative pathology 2012;147(4):566-9.
2012: Khaled El-Dakhly; Shaymaa El-Nahass; Atsuko Murai; Hiroki Sakai; Hirofumi Shimizu; Shawky Abo El-Hadid; Tokuma Yanai
Occurrence of Thelazia callipaeda and Toxocara cati in an imported European lynx (Lynx lynx) in Japan.
Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians 2012;43(3):632-5.
2012: Y Kato; J Kimura; Mami Murakami; H Notake; Hiroki Sakai; Akihiro Hirata; Tokuma Yanai
Orbital embryonal rhabdomyosarcoma with metastasis in a young dog.
Journal of comparative pathology 2012;147(2-3):191-4.
2012: W Abdo; S R Dover; Hideto Fukushi; Y Kakizoe; R Kano; E Okada; H Okuda; M Ryono; Hiroki Sakai; T Shibahara; Tokuma Yanai
Pulmonary zygomycosis with Cunninghamella bertholletiae in a killer whale (Orcinus orca).
Journal of comparative pathology 2012;147(1):94-9.
2012: Hiroki Sakai; Yuki Hoshino; Kohji Maruo; Hiroyuki Mishima; Takashi Mori; Mami Murakami; Tokuma Yanai
Cytologically atypical anal sac adenocarcinoma in a dog.
Veterinary clinical pathology / American Society for Veterinary Clinical Pathology 2012;41(2):291-4.
2012: S Abou Asa; E Abd el-Aziz; A El-Sawak; Y Hoshino; A Khater; K Maruo; T Mori; A Murai; M Murakami; T Yanai; Hiroki Sakai
Expression of platelet-derived growth factor and its receptors in spontaneous canine hemangiosarcoma and cutaneous hemangioma.
Histology and histopathology 2012;27(5):601-7.
2012: Kh M El-Dakhly; E El-Nahass; Hiroki Sakai; H Tuji; S Uni; Tokuma Yanai
Levels of infection of gastric nematodes in a flock of great cormorants (Phalacrocorax carbo) from Lake Biwa, Japan.
Journal of helminthology 2012;86(1):54-63.
2012: E El-Nahass; Hideto Fukushi; A Hirata; S Kasem; M Nayel; Hiroki Sakai; H Tuji; A A Abdelaziz; N El-Habashi; Tokuma Yanai
Kinetics and pathogenicity of oral infection by equine herpesvirus-9 in mice and suckling hamsters.
Journal of comparative pathology 2012;146(2-3):211-22.
2012: Atsuko Murai; Samah Abou Asa; Akihiro Hirata; Atsushi Kodama; Tokuma Yanai; Hiroki Sakai
Constitutive phosphorylation of the mTORC2/Akt/4E-BP1 pathway in newly derived canine hemangiosarcoma cell lines.
BMC veterinary research 2012;8():128.
2012: Y Yang; Michio Murakami; Hiroki Sakai; Satoshi Takizawa; N Watanabe
Removal of organic matter and phosphate using ferrihydrite for reduction of microbial regrowth potential.
Water science and technology : a journal of the International Association on Water Pollution Research 2012;66(6):1348-53.
2012: Walied Abdo; Hideto Fukushi; Yuko Kakizoe; Rui Kano; Takeshi Kawachi; Hiroki Sakai; Tomoyuki Shibahara; Hiroshi Shirouzu; Hajime Tuji; Tokuma Yanai
Disseminated mycosis in a killer whale (Orcinus orca).
Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 2012;24(1):211-8.
2011: Atsuko Murai; Mami Murakami; Koichi Murata; Hiroki Sakai; Hiroaki Shimizu; Tokuma Yanai
Glomerular lipidosis accompanied by renal tubular oxalosis in wild and laboratory-reared Japanese rock ptarmigans (Lagopus mutus japonicus).
Avian diseases 2011;55(4):709-13.
2011: Mami Murakami; Hiroki Sakai; Kenji Mizutani; Tokuma Yanai
Ganglioneuroma in the small intestine of a juvenile pig.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2011;73(11):1501-4.
2011: Hiroshi Katoh; Toshiaki Masegi; Kenji Ohya; Hiroki Sakai; Souichi Yamada; Tsuyoshi Yamaguchi; Tokuma Yanai; Takayuki Hagino; Hideto Fukushi
Molecular genetic and pathogenic characterization of psittacid herpesvirus type 1 isolated from a captive galah (Eolophus roseicapillus) in Japan.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2011;73(10):1341-5.
2011: E El-Nahass; Hideto Fukushi; A Hirata; S Kasem; M Nayel; Hiroki Sakai; Y Suzuki; N El-Habashi; Tokuma Yanai
Kinetics and pathogenicity of equine herpesvirus-9 infection following intraperitoneal inoculation in hamsters.
Journal of comparative pathology 2011;145(2-3):271-81.
2011: Hiroki Sakai; Masaaki Takeda; Akihiro Hirata; Mami Murakami; Kenta Niimi; Kayoko Yonemaru; Tokuma Yanai
Ganglioneuroma in the urinary bladder of a dog.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2011;73(6):801-3.
2011: N El-Habashi; Mami Murakami; E El-Nahass; D Hibi; Hiroki Sakai; Hideto Fukushi; V Sasseville; Tokuma Yanai
Study on the infectivity of equine herpesvirus 9 (EHV-9) by different routes of inoculation in hamsters.
Veterinary pathology 2011;48(3):558-64.
2011: Atsushi Kodama; Tokuma Yanai; Masahito Kubo; Nagwan El-Habashi; Samy Kasem; Hiroki Sakai; Toshiaki Masegi; Hideto Fukushi; Takeshi Kuraishi; Misako Yoneda; Shosaku Hattori; Chieko Kai
Cynomolgus monkeys (Macaca fascicularis) may not become infected with equine herpesvirus 9.
Journal of medical primatology 2011;40(1):18-20.
2011: Hiroki Sakai; Hiroyuki Katayama; Kumiko Oguma; Shinichiro Ohgaki
Effect of photoreactivation on ultraviolet inactivation of Microcystis aeruginosa.
Water science and technology : a journal of the International Association on Water Pollution Research 2011;63(6):1224-9.
2010: M Kubo; T Kawachi; Mami Murakami; M Kubo; S Tokuhiro; T Agatsuma; K Ito; T Okano; Makoto Asano; Hideto Fukushi; M Nagataki; Hiroki Sakai; Tokuma Yanai
Meningoencephalitis associated with Sarcocystis spp. in a free-living Japanese raccoon dog (Nyctereutes procyonoides viverrinus).
Journal of comparative pathology 2010;143(2-3):185-9.
2010: Yoshiji Asaoka; Hiroki Sakai; Jun Sasaki; Masanobu Goryo; Tokuma Yanai; Toshiaki Masegi; Kosuke Okada
Changes in the gene expression and enzyme activity of hepatic cytochrome P450 in juvenile Sprague-Dawley rats.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2010;72(4):471-9.
2010: Masahito Kubo; Aram Jeong; Sang-In Kim; Young-Jun Kim; Hang Lee; Junpei Kimura; Takeshi Agatsuma; Hiroki Sakai; Tokuma Yanai
The first report of Hepatozoon species infection in leopard cats (Prionailurus bengalensis) in Korea.
The Journal of parasitology 2010;96(2):437-9.
2010: Akihiro Hirata; Kayoko Yonemaru; Masahito Kubo; Mami Murakami; Hiroki Sakai; Tokuma Yanai; Toshiaki Masegi
Frequent development of inflammatory lesions and lymphoid foci in the kidneys of Japanese wild crows (Corvus macrorhynchos and Corvus corone) as a result of the entry of causal agents via the renal portal blood.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2010;72(3):327-32.
2010: Mami Murakami; Hiroki Sakai; Nao Iwatani; Aki Asakura; Yuki Hoshino; Takashi Mori; Tokuma Yanai; Kohji Maruo; Toshiaki Masegi
Cytologic, histologic, and immunohistochemical features of maxillofacial alveolar rhabdomyosarcoma in a juvenile dog.
Veterinary clinical pathology / American Society for Veterinary Clinical Pathology 2010;39(1):113-8.
2010: Yoshiji Asaoka; Hiroki Sakai; Akihiro Hirata; Jun Sasaki; Masanobu Goryo; Yohei Miyamoto; Tokuma Yanai; Toshiaki Masegi; Kosuke Okada
Detection of initiation activity of 1,2-dimethylhydrazine in in vivo medium-term liver initiation assay system using 4-week-old rats without hepatocellular proliferative stimuli during the test chemical treatment period.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2010;72(1):43-53.
2009: Masahito Kubo; Tsukasa Okano; Keiko Ito; Toshio Tsubota; Hiroki Sakai; Tokuma Yanai
Muscular sarcocystosis in wild carnivores in Honshu, Japan.
Parasitology research 2009;106(1):213-9.
2009: Masahito Kubo; Mitsuru Nagataki; Takeshi Agatsuma; Hiroki Sakai; Toshiaki Masegi; Roger J Panciera; Tokuma Yanai
Parasitological and molecular features of the Hepatozoon species in the myocardium of Japanese Martens (Martes melampus melampus).
The Journal of parasitology 2009;95(6):1496-502.
2009: Tizianne L D R Nakagawa; Hiroki Sakai; Tokuma Yanai; Katsuya Kitoh; Takashi Mori; Mami Murakami; Toshiaki Masegi
Simultaneous aortic body tumor and pulmonary histiocytic sarcoma in a flat-coated retriever.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2009;71(9):1221-3.
2009: T L D R Nakagawa; Y Takai; M Kubo; Hiroki Sakai; Toshiaki Masegi; Tokuma Yanai
A pathological study of sepsis associated with sarcoptic mange in raccoon dogs (Nyctereutes procyonoides) in Japan.
Journal of comparative pathology 2009;141(2-3):177-81.
2009: M Murakami; Hiroki Sakai; A Kodama; T Yanai; T Mori; K Maruo; Toshiaki Masegi
Activation of matrix metalloproteinase (MMP)-2 by membrane type 1-MMP and abnormal immunolocalization of the basement membrane components laminin and type IV collagen in canine spontaneous hemangiosarcomas.
Histology and histopathology 2009;24(4):437-46.
2009: George Ohta; Hiroki Sakai; Masato Kobayashi; Toshiaki Masegi; Tokuma Yanai
Proliferative potential of a spinal nephroblastoma in a young dog.
Journal of toxicologic pathology 2009;22(1):79-82.
2009: Atsushi Kodama; Hiroki Sakai; Satoko Matsuura; Mami Murakami; Atsuko Murai; Takashi Mori; Kouji Maruo; Tohru Kimura; Toshiaki Masegi; Tokuma Yanai
Establishment of canine hemangiosarcoma xenograft models expressing endothelial growth factors, their receptors, and angiogenesis-associated homeobox genes.
BMC cancer 2009;9():363.
2009: M Kubo; Y Matsuo; T Okano; Hiroki Sakai; Toshiaki Masegi; Makoto Asano; K Uchida; Tokuma Yanai
Nasal neuroendocrine carcinoma in a free-living Japanese raccoon dog (Nyctereutes procyonoides viverrinus).
Journal of comparative pathology 2009;140(1):67-71.
2008: Atsushi Kodama; Hiroki Sakai; Keiya Kobayashi; Takashi Mori; Kohji Maruo; Tadaaki Kudo; Tokuma Yanai; Toshiaki Masegi
B-cell intestinal lymphoma with Mott cell differentiation in a 1-year-old miniature Dachshund.
Veterinary clinical pathology / American Society for Veterinary Clinical Pathology 2008;37(4):409-15.
2008: Masahito Kubo; Shigehiko Uni; Takeshi Agatsuma; Mitsuru Nagataki; Roger J Panciera; Toshio Tsubota; Sachiko Nakamura; Hiroki Sakai; Toshiaki Masegi; Tokuma Yanai
Hepatozoon ursi n. sp. (Apicomplexa: Hepatozoidae) in Japanese black bear (Ursus thibetanus japonicus).
Parasitology international 2008;57(3):287-94.
2008: Mami Murakami; Hiroki Sakai; A Kodama; T Mori; K Maruo; Tokuma Yanai; Toshiaki Masegi
Expression of the anti-apoptotic factors Bcl-2 and survivin in canine vascular tumours.
Journal of comparative pathology 2008;139(1):1-7.
2008: Hiroki Sakai; Takashi Mori; Tsuneyoshi Iida; Yanai Tokuma; Kouji Maruo; Toshiaki Masegi
Immunohistochemical features of proliferative marker and basement membrane components of two feline inductive odontogenic tumours.
Journal of feline medicine and surgery 2008;10(3):296-9.
2008: Akihiro Hirata; Tetsuya Tsukamoto; Hiroki Sakai; Shinji Takasu; Hisayo Ban; Toshio Imai; Yukari Totsuka; Rena Nishigaki; Keiji Wakabayashi; Tokuma Yanai; Toshiaki Masegi; Masae Tatematsu
Carcinogenic risk of heterocyclic amines in combination - assessment with a liver initiation model.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2008;46(6):2003-9.
2007: Akihiro Hirata; Tetsuya Tsukamoto; Masami Yamamoto; Shinji Takasu; Hiroki Sakai; Hisayo Ban; Tokuma Yanai; Toshiaki Masegi; Lawrence A Donehower; Masae Tatematsu
Early development of histiocytic sarcomas in p53 knockout mice treated with N-bis(2-hydroxypropyl)nitrosamine.
Oncology reports 2007;18(4):755-61.
2007: Kazuaki Yamazoe; Hiroyuki Mishima; Kentaro Torigoe; Hisashi Iijima; Kazuhiro Watanabe; Hiroki Sakai; Tadaaki Kudo
Effects of atelocollagen gel containing bone marrow-derived stromal cells on repair of osteochondral defect in a dog.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2007;69(8):835-9.
2007: Akihiro Hirata; Tetsuya Tsukamoto; Masami Yamamoto; Shinji Takasu; Hiroki Sakai; Hisayo Ban; Tokuma Yanai; Toshiaki Masegi; Lawrence A Donehower; Masae Tatematsu
Organ-dependent susceptibility of p53 knockout mice to 2-amino-3-methylimidazo[4,5-f]quinoline (IQ).
Cancer science 2007;98(8):1164-73.
2007: Shinji Takasu; Tetsuya Tsukamoto; Akihiro Hirata; Kazuaki Kawai; Takeshi Toyoda; Hisayo Ban; Hiroki Sakai; Tokuma Yanai; Toshiaki Masegi; Hiroshi Kasai; Masae Tatematsu
Lack of initiation activity of 4-oxo-2-hexenal, a peroxidation product generated from omega-3 polyunsaturated fatty acids, in an in vivo five-week liver assay.
Asian Pacific journal of cancer prevention : APJCP 2007;8(3):372-4.
2007: Masahito Kubo; Keiya Kobayashi; Toshiaki Masegi; Hiroki Sakai; Toshio Tsubota; Makoto Asano; Miki Itani; Tokuma Yanai
A case of chondrosarcoma in a free-flying Great Egret.
Journal of wildlife diseases 2007;43(3):542-4.
2007: Kazuaki Yamazoe; Shuji Miyamoto; Yoko Hikosaka; Koji Kitagawa; Kazuhiro Watanabe; Hiroki Sakai; Tadaaki Kudo
Three-dimensional culture of keratinocytes and the formation of basement membrane for canine footpad substitute.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2007;69(6):611-7.
2007: Kayoko Yonemaru; Hiroki Sakai; Mami Murakami; Atsushi Kodama; Takashi Mori; Tokuma Yanai; Kohji Maruo; Toshiaki Masegi
The significance of p53 and retinoblastoma pathways in canine hemangiosarcoma.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2007;69(3):271-8.
2007: A Murai; Tokuma Yanai; M Kato; Kayoko Yonemaru; Hiroki Sakai; Toshiaki Masegi
Teratoma of the umbilical cord in a giraffe (Giraffa camelopardalis reticulata).
Veterinary pathology 2007;44(2):204-6.
2006: Kayoko Yonemaru; Hiroki Sakai; Mami Murakami; Tokuma Yanai; Toshiaki Masegi
Expression of vascular endothelial growth factor, basic fibroblast growth factor, and their receptors (flt-1, flk-1, and flg-1) in canine vascular tumors.
Veterinary pathology 2006;43(6):971-80.
2006: Tetsuya Tsukamoto; Masami Yamamoto; Hiroko Fukami; Akemi Yoshikawa; Hiroki Sakai; Akihiro Hirata; Moriaki Kusakabe; Masae Tatematsu
Susceptibility to colon carcinogenesis in C3H<-->C57BL/6 chimeric mice reflects both tissue microenvironment and genotype.
Cancer letters 2006;239(2):205-11.
2006: Akihiro Hirata; Tetsuya Tsukamoto; Masami Yamamoto; Hiroki Sakai; Tokuma Yanai; Toshiaki Masegi; Lawrence A Donehower; Masae Tatematsu
Organ-specific susceptibility of p53 knockout mice to N-bis(2-hydroxypropyl)nitrosamine carcinogenesis.
Cancer letters 2006;238(2):271-83.
2006: K Masuno; Tokuma Yanai; Akihiro Hirata; Kayoko Yonemaru; Hiroki Sakai; M Satoh; Toshiaki Masegi; Y Nakai
Morphological and immunohistochemical features of Cryptosporidium andersoni in cattle.
Veterinary pathology 2006;43(2):202-7.
2006: Tetsuya Tsukamoto; Hiroki Sakai; Akihiro Hirata; Hiroko Fukami; Masae Tatematsu
Three-dimensional analysis of isolated hexosaminidase-altered aberrant crypts from colons of 1,2-dimethylhydrazine-treated rats.
Experimental and toxicologic pathology : official journal of the Gesellschaft für Toxikologische Pathologie 2006;57(4):283-9.
2005: Yoshiji Asaoka; Hiroki Sakai; Naofumi Takahashi; Akihiro Hirata; Tetsuya Tsukamoto; Masami Yamamoto; Tokuma Yanai; Toshiaki Masegi; Masae Tatematsu
Intraperitoneal injection of D-galactosamine provides a potent cell proliferation stimulus for the detection of initiation activities of chemicals in rat liver.
Journal of applied toxicology : JAT 2005;25(6):554-61.
2005: Ryoji Yamaguchi; Atsuko Kojimoto; Hiroki Sakai; Kazuyuki Uchida; Sumio Sugano; Susumu Tateyama
Growth characteristics of canine distemper virus in a new cell line CCT cells originated from canine malignant histiocytosis.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2005;67(2):203-6.
2005: Takeshi Iidaka; Tetsuya Tsukamoto; Yukari Totsuka; Akihiro Hirata; Hiroki Sakai; Norimitsu Shirai; Masami Yamamoto; Keiji Wakabayashi; Tokuma Yanai; Toshiaki Masegi; Lawrence A Donehower; Masae Tatematsu
Lack of elevated liver carcinogenicity of aminophenylnorharman in p53-deficient mice.
Cancer letters 2005;217(2):149-59.
2004: Akihiro Hirata; Ken-ichi Inada; Tetsuya Tsukamoto; Hiroki Sakai; Tsutomu Mizoshita; Tokuma Yanai; Toshiaki Masegi; Hidemasa Goto; Masaki Inagaki; Masae Tatematsu
Characterization of a monoclonal antibody, HTA28, recognizing a histone H3 phosphorylation site as a useful marker of M-phase cells.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society 2004;52(11):1503-9.
2004: G Ohta; Hiroki Sakai; S Kachi; Akihiro Hirata; Kayoko Yonemaru; A Kitajima; Tokuma Yanai; Toshiaki Masegi
Assessment of proliferative potentials of canine osteosarcomas and chondrosarcomas by MIB-1 immunohistochemistry and bromodeoxyuridine incorporation.
Journal of comparative pathology 2004;131(1):18-27.
2004: M Kobayashi; Hiroki Sakai; Akihiro Hirata; Kayoko Yonemaru; Tokuma Yanai; Kazuhiro Watanabe; Kazuaki Yamazoe; Tadaaki Kudo; Toshiaki Masegi
Expression of myogenic regulating factors, Myogenin and MyoD, in two canine botryoid rhabdomyosarcomas.
Veterinary pathology 2004;41(3):275-7.
2004: Kayoko Yonemaru; Hiroki Sakai; Yoshiji Asaoka; Tokuma Yanai; Hideto Fukushi; Ken Watanabe; Katsuya Hirai; Toshiaki Masegi
Proventricular adenocarcinoma in a Humboldt penguin (Spheniscus humboldti) and a great horned owl (Bubo virginianus); identification of origin by mucin histochemistry.
Avian pathology : journal of the W.V.P.A 2004;33(1):77-81.
2004: Yoshiji Asaoka; Tokuma Yanai; Haruko Hirayama; Yumi Une; Eriko Saito; Hiroki Sakai; Masanobu Goryo; Hideto Fukushi; Toshiaki Masegi
Fatal necrotic enteritis associated with Clostridium perfringens in wild crows (Corvus macrorhynchos).
Avian pathology : journal of the W.V.P.A 2004;33(1):19-24.
2004: Hiroki Sakai; Mika Maruyama; Akihiro Hirata; Kayoko Yonemaru; Tokuma Yanai; Toshiaki Masegi
Rhabdomyosarcoma in a ferret (Mustela putorius furo).
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2004;66(1):95-6.
2003: Hiroki Sakai; Tokuma Yanai; Kayoko Yonemaru; Akihiro Hirata; Toshiaki Masegi
Gallbladder adenocarcinomas in two captive African lions (Panthera leo).
Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians 2003;34(3):302-6.
2003: Hiroki Sakai; Hiroko Nakano; Ryouji Yamaguchi; Kayoko Yonemaru; Tokuma Yanai; Toshiaki Masegi
Establishment of a new canine cell line (CCT) originated from a cutaneous malignant histiocytosis.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2003;65(6):731-5.
2003: Hiroki Sakai; Tetsuya Tsukamoto; Masami Yamamoto; Norimitsu Shirai; Takeshi Iidaka; Akihiro Hirata; Tokuma Yanai; Toshiaki Masegi; Lawrence A Donehower; Masae Tatematsu
High susceptibility of nullizygous p53 knockout mice to colorectal tumor induction by 1,2-dimethylhydrazine.
Journal of cancer research and clinical oncology 2003;129(6):335-40.
2003: Tokuma Yanai; N Fujishima; Hideto Fukushi; Akihiro Hirata; Hiroki Sakai; Toshiaki Masegi
Experimental infection of equine herpesvirus 9 in dogs.
Veterinary pathology 2003;40(3):263-7.
2003: Tokuma Yanai; S Tujioka; Hiroki Sakai; Hideto Fukushi; Katsuya Hirai; Toshiaki Masegi
Experimental infection with equine herpesvirus 9 (EHV-9) in cats.
Journal of comparative pathology 2003;128(2-3):113-8.
2002: Hiroki Sakai; A Noda; N Shirai; T Iidaka; Tokuma Yanai; Toshiaki Masegi; N Shirai; Takeshi Iidaka; T Yanai; T Masegi
Proliferative activity of canine mast cell tumours evaluated by bromodeoxyuridine incorporation and Ki-67 expression.
Journal of comparative pathology 2002;127(4):233-8.
2002: Norimitsu Shirai; Tetsuya Tsukamoto; Masami Yamamoto; Takeshi Iidaka; Hiroki Sakai; Tokuma Yanai; Toshiaki Masegi; Lawrence A Donehower; Masae Tatematsu
Elevated susceptibility of the p53 knockout mouse esophagus to methyl-N-amylnitrosamine carcinogenesis.
Carcinogenesis 2002;23(9):1541-7.
2002: Hiroki Sakai; Tetsuya Tsukamoto; Masami Yamamoto; Akihiro Hirata; Atsushi Inagami; Norimitsu Shirai; Takeshi Iidaka; Tokuma Yanai; Toshiaki Masegi; Masae Tatematsu
Summation of initiation activities in the liver after partial hepatectomy.
Cancer letters 2002;176(1):1-5.
2001: Hiroki Sakai; Tokuma Yanai; S Kawakami; Toshiaki Masegi
Malignant melanoma of the palpebral conjunctiva in a captive fallow deer.
Journal of wildlife diseases 2001;37(4):816-9.
2001: Tokuma Yanai; A Noda; S Kawakami; Hiroki Sakai; Andrew Lackner; Toshiaki Masegi
Lingual calcinosis circumscripta in a captive sitatunga.
Journal of wildlife diseases 2001;37(4):813-5.
2001: Hiroki Sakai; Tetsuya Tsukamoto; Masami Yamamoto; Norimitsu Shirai; Takeshi Iidaka; Tokuma Yanai; Toshiaki Masegi; Masae Tatematsu
Differential effects of partial hepatectomy and carbon tetrachloride administration on induction of liver cell foci in a model for detection of initiation activity.
Japanese journal of cancer research : Gann 2001;92(10):1018-25.
2001: Hiroki Sakai; T Yamane; Tokuma Yanai; N Shirai; Toshiaki Masegi
Expression of cyclin kinase inhibitor p27(Kip1) in skin tumours of dogs.
Journal of comparative pathology 2001;125(2-3):153-8.
2001: H Takashima; Hiroki Sakai; Tokuma Yanai; Toshiaki Masegi
Detection of antibodies against Pasteurella multocida using immunohistochemical staining in an outbreak of rabbit pasteurellosis.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 2001;63(2):171-4.
2001: Tetsuya Tsukamoto; Hiroko Fukami; S Yamanaka; A Yamaguchi; H Nakanishi; Hiroki Sakai; I Aoki; Masae Tatematsu
Hexosaminidase-altered aberrant crypts, carrying decreased hexosaminidase alpha and beta subunit mRNAs, in colon of 1,2-dimethylhydrazine-treated rats.
Japanese journal of cancer research : Gann 2001;92(2):109-18.
2000: Masami Yamamoto; Tetsuya Tsukamoto; Hiroki Sakai; Norimitsu Shirai; H Ohgaki; C Furihata; Lawrence A Donehower; K Yoshida; Masae Tatematsu
p53 knockout mice (-/-) are more susceptible than (+/-) or (+/+) mice to N-methyl-N-nitrosourea stomach carcinogenesis.
Carcinogenesis 2000;21(10):1891-7.
1999: K Yoshida; Tokuma Yanai; Toshiroh Iwasaki; Hiroki Sakai; J Ohta; S Kati; T Minami; Andrew Lackner; Toshiaki Masegi
Clinicopathological study of canine oral epulides.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 1999;61(8):897-902.
1999: H Takashima; Hiroki Sakai; Tokuma Yanai; Toshiaki Masegi
Detection of antibodies against Actinobacillus pleuropneumoniae serotypes 1, 2, 5 and 7 using the immunohistochemical staining.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 1999;61(6):713-6.
1999: K Yoshida; Tokuma Yanai; Toshiroh Iwasaki; Hiroki Sakai; J Ohta; S Kati; K Ishikawa; Andrew Lackner; Toshiaki Masegi
Proliferative potential of canine oral epulides and malignant neoplasms assessed by bromodeoxyuridine labeling.
Veterinary pathology 1999;36(1):35-41.
1998: Tokuma Yanai; T Sakai; Hideto Fukushi; Katsuya Hirai; M Narita; Hiroki Sakai; Toshiaki Masegi
Neuropathological study of gazelle herpesvirus 1 (equine herpesvirus 9) infection in Thomson's gazelles (Gazella thomsoni).
Journal of comparative pathology 1998;119(2):159-68.
1996: Hiroki Sakai; Tokuma Yanai; K Yoshida; Toshiroh Iwasaki; H Fujioka; J Ota; K Isowa; Toshiaki Masegi
Ameloblastoma with prominent ossification in the mandible of a dog.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 1996;58(11):1113-5.
1996: Tokuma Yanai; C Matsumoto; H Takashima; K Yoshida; Hiroki Sakai; K Isowa; Toshiroh Iwasaki; Y Sato; Toshiaki Masegi
Immunohistochemical demonstration of S-phase cells by anti-bromodeoxyuridine monoclonal antibody in cattle tissues.
Journal of comparative pathology 1996;114(3):265-72.
1996: Tokuma Yanai; Toshiaki Masegi; K Ishikawa; Hiroki Sakai; Toshiroh Iwasaki; Y Moritomo; N Goto
Spontaneous vascular mineralization in the brain of horses.
The Journal of veterinary medical science / the Japanese Society of Veterinary Science 1996;58(1):35-40.