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Yoichi Ajioka

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Satoshi Ikarashi; Ken Nishikura; Yoichi Ajioka; Yutaka Aoyagi
Re-evaluation of phenotypic expression in undifferentiated-type early gastric adenocarcinomas using mucin core protein and CDX2.
Yoichi Ajioka; Tomoe Sano
Histopathologic characteristics and biopsy diagnosis of colorectal carcinoma in ulcerative colitis.
Toshifumi Wakai; Yoichi Ajioka; Pavel V Korita; Jun Sakata; Yoshio Shirai; Katsuyoshi Hatakeyama
Early DNA damage response in residual carcinoma in situ at ductal stumps and local recurrence in patients undergoing resection for extrahepatic cholangiocarcinoma.

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2013: Satoshi Ikarashi; Ken Nishikura; Yoichi Ajioka; Yutaka Aoyagi
Re-evaluation of phenotypic expression in undifferentiated-type early gastric adenocarcinomas using mucin core protein and CDX2.
Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association 2013;16(2):208-19.
2013: Yoichi Ajioka; Tomoe Sano
Histopathologic characteristics and biopsy diagnosis of colorectal carcinoma in ulcerative colitis.
Nihon Shokakibyo Gakkai zasshi = The Japanese journal of gastro-enterology 2013;110(3):379-84.
2013: Toshifumi Wakai; Yoichi Ajioka; Pavel V Korita; Jun Sakata; Yoshio Shirai; Katsuyoshi Hatakeyama
Early DNA damage response in residual carcinoma in situ at ductal stumps and local recurrence in patients undergoing resection for extrahepatic cholangiocarcinoma.
Journal of hepato-biliary-pancreatic sciences 2013;20(3):362-9.
2013: Taku Ohashi; Toshiyuki Ohyama; Naoki Okuyama; Jun Sakata; Yoshio Shirai; Toshifumi Wakai; Yuhki Arai; Masayuki Kubota; Yasunobu Matsuda; Kengo Nakaya; Yoichi Ajioka
Risk of subsequent biliary malignancy in patients undergoing cyst excision for congenital choledochal cysts.
Journal of gastroenterology and hepatology 2013;28(2):243-7.
2012: Toshifumi Wakai; Yoichi Ajioka; Pavel V Korira; Tomohiro Maruyama; Taku Ohashi; Jun Sakata; Yoshio Shirai; Katsuyoshi Hatakeyama
Clinicopathological features of benign biliary strictures masquerading as biliary malignancy.
The American surgeon 2012;78(12):1388-91.
2012: Alexey Annenkov; Koji Domori; Ken Nishikura; Yoichi Ajioka
Alpha-methylacyl-coenzyme A racemase expression in neuroendocrine neoplasms of the stomach.
Virchows Archiv : an international journal of pathology 2012;461(2):169-75.
2012: Tatsuo Kanda; Shin-Ichi Kosugi; Yasuoki Mashima; Manabu Ohashi; Satoshi Suzuki; Kazuhito Yajima; Yoichi Ajioka; Seiichi Hirota; Takashi Ishikawa; Katsuyoshi Hatakeyama
Prospective observational study of imatinib therapy in Japanese patients with advanced gastrointestinal stromal tumors: long-term follow-up and second malignancy.
Japanese journal of clinical oncology 2012;42(7):578-85.
2012: Tatsuo Kanda; Shin-Ichi Kosugi; Kazuhito Yajima; Yoichi Ajioka; Takashi Ishikawa; Katsuyoshi Hatakeyama
Gastrectomy as a secondary surgery for stage IV gastric cancer patients who underwent S-1-based chemotherapy: a multi-institute retrospective study.
Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association 2012;15(3):235-44.
2012: Yujiro Nozawa; Ken Nishikura; Yoichi Ajioka; Yutaka Aoyagi
Relationship between alpha-methylacyl-coenzyme A racemase expression and mucin phenotype in gastric cancer.
Human pathology 2012;43(6):878-87.
2012: Tsutomu Anraku; Takaki Mizusawa; Kenji Obara; Hiromi Sato; Yoichi Ajioka; Kota Takahashi
[A case of true ureteral diverticulum on functional solitary kidney].
Nihon Hinyōkika Gakkai zasshi. The japanese journal of urology 2012;103(3):569-72.
2012: Toshifumi Wakai; Yoichi Ajioka; Tsuneo Iiai; Hitoshi Kameyama; Hitoshi Nogami; Jun Sakata; Yoshio Shirai; Katsuyoshi Hatakeyama
Histologic evaluation of intrahepatic micrometastases in patients treated with or without neoadjuvant chemotherapy for colorectal carcinoma liver metastasis.
International journal of clinical and experimental pathology 2012;5(4):308-14.
2012: Yoshio Shirai; Toshifumi Wakai; Yoichi Ajioka; Taku Ohashi; Jun Sakata; Katsuyoshi Hatakeyama
Assessment of lymph node status in gallbladder cancer: location, number, or ratio of positive nodes.
World journal of surgical oncology 2012;10():87.
2011: Jun Sakata; Yoshio Shirai; Toshifumi Wakai; Yoichi Ajioka; Kouhei Akazawa; Katsuyoshi Hatakeyama
Assessment of the nodal status in ampullary carcinoma: the number of positive lymph nodes versus the lymph node ratio.
World journal of surgery 2011;35(9):2118-24.
2011: Masaaki Kobayashi; Rintaro Narisawa; Akito Sato; Manabu Takeuchi; Yoichi Ajioka; Satoru Hashimoto; Yutaka Aoyagi
Mucin phenotype and narrow-band imaging with magnifying endoscopy for differentiated-type mucosal gastric cancer.
Journal of gastroenterology 2011;46(9):1064-70.
2011: Toshifumi Wakai; Yoichi Ajioka; Pavel Vladimirovich Korita; Jun Sakata; Yoshio Shirai; Katsuyoshi Hatakeyama
Surgical outcomes for hepatocellular carcinoma in nonalcoholic fatty liver disease.
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract 2011;15(8):1450-8.
2011: Toshifumi Wakai; Yoshio Shirai; Jun Sakata; Pavel V Korita; Yasunobu Matsuda; Masaaki Takamura; Riuko Ohashi; Masayuki Nagahashi; Yoichi Ajioka; Katsuyoshi Hatakeyama
Alteration of p53-binding protein 1 expression as a risk factor for local recurrence in patients undergoing resection for extrahepatic cholangiocarcinoma.
International journal of oncology 2011;38(5):1227-36.
2011: Toshifumi Wakai; Yoshio Shirai; Jun Sakata; Yasunobu Matsuda; Masaaki Takamura; Yoichi Ajioka; Pavel V Korita; Katsuyoshi Hatakeyama
Prognostic significance of NQO1 expression in intrahepatic cholangiocarcinoma.
International journal of clinical and experimental pathology 2011;4(4):363-70.
2011: Toshifumi Wakai; Yoichi Ajioka; Kohei Akazawa; Makoto Inoue; Yoshio Shirai; Masaaki Takamura; Pavel V Korita; Katsuyoshi Hatakeyama
Intraepithelial ductal spread in colorectal carcinoma liver metastasis.
Hepato-gastroenterology 2011;58(106):583-8.
2010: Jun Sakata; Yoshio Shirai; Toshifumi Wakai; Yoichi Ajioka; Katsuyoshi Hatakeyama
Number of positive lymph nodes independently determines the prognosis after resection in patients with gallbladder carcinoma.
Annals of surgical oncology 2010;17(7):1831-40.
2010: Pavel V Korita; Toshifumi Wakai; Yoichi Ajioka; Makoto Inoue; Masaaki Takamura; Yoshio Shirai; Katsuyoshi Hatakeyama
Aberrant expression of vimentin correlates with dedifferentiation and poor prognosis in patients with intrahepatic cholangiocarcinoma.
Anticancer research 2010;30(6):2279-85.
2010: Masanori Ohashi; Toshifumi Wakai; Jun Sakata; Pavel V Korita; Yoshio Shirai; Yoichi Ajioka; Katsuyoshi Hatakeyama
Clinical significance of intracapsular and extratumoral venous invasion in hepatocellular carcinoma.
Hepato-gastroenterology 2010;57(99-100):611-5.
2010: Pavel V Korita; Toshifumi Wakai; Yoshio Shirai; Yasunobu Matsuda; Jun Sakata; Masaaki Takamura; Masahiko Yano; Ayumi Sanpei; Yutaka Aoyagi; Katsuyoshi Hatakeyama; Yoichi Ajioka
Multidrug resistance-associated protein 2 determines the efficacy of cisplatin in patients with hepatocellular carcinoma.
Oncology reports 2010;23(4):965-72.
2010: Masayuki Nagahashi; Yoshio Shirai; Toshifumi Wakai; Jun Sakata; Yoichi Ajioka; Tatsuya Nomura; Yoshiaki Tsuchiya; Katsuyoshi Hatakeyama
Depth of invasion determines the postresectional prognosis for patients with T1 extrahepatic cholangiocarcinoma.
Cancer 2010;116(2):400-5.
2010: Masanori Ohashi; Toshifumi Wakai; Pavel V Korita; Yoichi Ajioka; Yoshio Shirai; Katsuyoshi Hatakeyama
Histological evaluation of intracapsular venous invasion for discrimination between portal and hepatic venous invasion in hepatocellular carcinoma.
Journal of gastroenterology and hepatology 2010;25(1):143-9.
2010: Masaaki Takamura; Satoshi Yamagiwa; Toshifumi Wakai; Yasushi Tamura; Hiroteru Kamimura; Takashi Kato; Atsunori Tsuchiya; Yasunobu Matsuda; Yoshio Shirai; Takafumi Ichida; Yoichi Ajioka; Yutaka Aoyagi
Loss of liver-intestine cadherin in human intrahepatic cholangiocarcinoma promotes angiogenesis by up-regulating metal-responsive transcription factor-1 and placental growth factor.
International journal of oncology 2010;36(1):245-54.
2010: Toshifumi Wakai; Yoshio Shirai; Jun Sakata; Masayuki Nagahashi; Yoichi Ajioka; Katsuyoshi Hatakeyama
Mode of hepatic spread from gallbladder carcinoma: an immunohistochemical analysis of 42 hepatectomized specimens.
The American journal of surgical pathology 2010;34(1):65-74.
2009: Takashi Abe; Tatsuo Furukawa; Masayoshi Masuko; Atsunori Sugimoto; Kiyoshi Okazuka; Keiichiro Honma; Takeo Fujimura; Seitaro Iguchi; Shinichi Nishi; Mitsuhiro Ueno; Masayuki Nagahashi; Gen Watanabe; Yoichi Ajioka; Noriatsu Isahai; Koichi Nagai; Yukumasa Kazuyama; Yosifusa Aizawa
Sequential adenovirus infection of type 14 hemorrhagic cystitis and type 35 generalized infection after cord blood transplantation.
International journal of hematology 2009;90(3):421-5.
2009: Mami Tsukada; Toshifumi Wakai; Yasunobu Matsuda; Pavel V Korita; Yoshio Shirai; Yoichi Ajioka; Katsuyoshi Hatakeyama; Masayuki Kubota
Loss of carcinoembryonic antigen-related cell adhesion molecule 1 expression predicts metachronous pulmonary metastasis and poor survival in patients with hepatoblastoma.
Journal of pediatric surgery 2009;44(8):1522-8.
2009: Yutaka Hirayama; Masayuki Kubota; Go Hasegawa; Naoki Okuyama; Masahiro Ohtaki; Kumiko Kobayashi; Mami Tsukada; Kanako Sato; Ken Nishikura; Makoto Naito; Yoichi Ajioka
A case of a choledochal cyst associated with a lymphatic infiltration of a hyperplastic gallbladder epithelium.
Journal of pediatric surgery 2009;44(4):831-5.
2008: Pavel V Korita; Toshifumi Wakai; Yoshio Shirai; Yasunobu Matsuda; Jun Sakata; Xing Cui; Yoichi Ajioka; Katsuyoshi Hatakeyama
Overexpression of osteopontin independently correlates with vascular invasion and poor prognosis in patients with hepatocellular carcinoma.
Human pathology 2008;39(12):1777-83.
2008: Toshifumi Wakai; Yoshio Shirai; Jun Sakata; Vladimir A Valera; Pavel V Korita; Kouhei Akazawa; Yoichi Ajioka; Katsuyoshi Hatakeyama
Appraisal of 1 cm hepatectomy margins for intrahepatic micrometastases in patients with colorectal carcinoma liver metastasis.
Annals of surgical oncology 2008;15(9):2472-81.
2008: Akira Kimura; Yasuo Tsuchiya; Istvan Lang; Szentirmay Zoltan; Hiroto Nakadaira; Yoichi Ajioka; Chikako Kiyohara; Mari Oyama; Kazutoshi Nakamura
Effect of genetic predisposition on the risk of gallbladder cancer in Hungary.
Asian Pacific journal of cancer prevention : APJCP 2008;9(3):391-6.
2008: Masayuki Nagahashi; Yoichi Ajioka; Istvan Lang; Zoltan Szentirmay; Miklos Kasler; Hiroto Nakadaira; Naoyuki Yokoyama; Gen Watanabe; Ken Nishikura; Toshifumi Wakai; Yoshio Shirai; Katsuyoshi Hatakeyama; Masaharu Yamamoto
Genetic changes of p53, K-ras, and microsatellite instability in gallbladder carcinoma in high-incidence areas of Japan and Hungary.
World journal of gastroenterology : WJG 2008;14(1):70-5.
2008: Satoshi Kajiura; Tetsuya Yashiki; Hiroyuki Funaoka; Yasuhiko Ohkaru; Ken Nishikura; Tatsuo Kanda; Yoichi Ajioka; Michihiro Igarashi; Katsuyoshi Hatakeyama; Hiroshi Fujii
Establishment and characterization of monoclonal and polyclonal antibodies against human intestinal fatty acid-binding protein (I-FABP) using synthetic regional peptides and recombinant I-FABP.
Journal of immunoassay & immunochemistry 2008;29(1):19-41.
2007: Shigekazu Nagata; Yoichi Ajioka; Ken Nishikura; Gen Watanabe; Takahiro Inoue; Koji Yamaguchi; Hidenobu Watanabe; Masao Tanaka; Masazumi Tsuneyoshi
Co-expression of gastric and biliary phenotype in pyloric-gland type adenoma of the gallbladder: immunohistochemical analysis of mucin profile and CD10.
Oncology reports 2007;17(4):721-9.
2007: Chiaki Banzai; Tetsuro Yahata; Jun Sasahara; Katsunori Kashima; Kazuyuki Fujita; Ken Nishikura; Yoichi Ajioka; Teiichi Motoyama; Kenichi Tanaka
Advanced malignant rhabdoid tumor of the ovary effectively responding to chemotherapy: a case report and review of the literature.
Gynecologic oncology 2007;105(1):261-5.
2007: Erica Tozawa; Yoichi Ajioka; Hidenobu Watanabe; Ken Nishikura; Gen Mukai; Takeyasu Suda; Tsunehisa Kanoh; Katsuyoshi Hatakeyama
Mucin expression, p53 overexpression, and peritumoral lymphocytic infiltration of advanced colorectal carcinoma with mucus component: is mucinous carcinoma a distinct histological entity?
Pathology, research and practice 2007;203(8):567-74.
2005: Yoichi Ajioka; Ken Nishikura; Gen Watanabe
[Pathomorphology of ulcerative colitis].
Nihon rinsho. Japanese journal of clinical medicine 2005;63(5):763-9.
2005: Ken Nishikura; Hidenobu Watanabe; Yoichi Ajioka; Gen Watanabe
[Pathological classification and molecular diagnosis of stomach cancer].
Nihon Naika Gakkai zasshi. The Journal of the Japanese Society of Internal Medicine 2005;94(1):16-24.
2005: Yoshiyuki Ikeda; Ken Nishikura; Hidenobu Watanabe; Gen Watanabe; Yoichi Ajioka; Katsuyoshi Hatakeyama
Histopathological differences in the development of small intestinal metaplasia between antrum and body of stomach.
Pathology, research and practice 2005;201(7):487-96.
2005: Ryuusuke Aihara; Yoichi Ajioka; Hidenobu Watanabe; Hidefumi Shiroshita; Kohei Akazawa; Hiroyuki Kuwano
Incidence and distribution of hybrid goblet cells in complete type intestinal metaplasia of the stomach.
Pathology, research and practice 2005;201(1):11-9.
2004: Haruka Hirono; Yoichi Ajioka; Hidenobu Watanabe; Yoichiro Baba; Erica Tozawa; Ken Nishikura; Gen Mukai; Terasu Honma; Yutaka Aoyagi
Bidirectional gastric differentiation in cellular mucin phenotype (foveolar and pyloric) in serrated adenoma and hyperplastic polyp of the colorectum.
Pathology international 2004;54(6):401-7.
2004: Hidefumi Shiroshita; Hidenobu Watanabe; Yoichi Ajioka; Gen Watanabe; Ken Nishikura; Seigo Kitano
Re-evaluation of mucin phenotypes of gastric minute well-differentiated-type adenocarcinomas using a series of HGM, MUC5AC, MUC6, M-GGMC, MUC2 and CD10 stains.
Pathology international 2004;54(5):311-21.
2003: Ken Nishikura; Hidenobu Watanabe; Mitsuya Iwafuchi; Yoichi Ajioka; Gen Mukai
[Diagnosis and treatment of carcinoid tumors in the gastrointestinal tract].
Gan to kagaku ryoho. Cancer & chemotherapy 2003;30(5):606-13.
2003: Koji Komori; Yoichi Ajioka; Hidenobu Watanabe; Koji Oda; Yuji Nimura
Proliferation kinetics and apoptosis of serrated adenoma of the colorectum.
Pathology international 2003;53(5):277-83.
2003: Tadashi Tanabe; Tadashi Nishimaki; Hidenobu Watanabe; Yoichi Ajioka; Kohei Akazawa; Shintaro Komukai; Katsuyoshi Hatakeyama
Immunohistochemically detected micrometastasis in lymph nodes from superficial esophageal squamous cell carcinoma.
Journal of surgical oncology 2003;82(3):153-9.
2003: Ken Nishikura; Hidenobu Watanabe; Mitsuya Iwafuchi; Takato Fujiwara; Kazuko Kojima; Yoichi Ajioka
Carcinogenesis of gastric endocrine cell carcinoma: analysis of histopathology and p53 gene alteration.
Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association 2003;6(4):203-9.
2001: S Yamada; Yoichi Ajioka; Hidenobu Watanabe; H Hashidate; H Takaku; S Kazama; J Yokoyama; Ken Nishikura; T Fujiwara; H Asakura
Heterogeneity of p53 mutational status in intramucosal carcinoma of the colorectum.
Japanese journal of cancer research : Gann 2001;92(2):161-6.
2001: H Takaku; Yoichi Ajioka; Hidenobu Watanabe; H Hashidate; S Yamada; J Yokoyama; S Kazama; T Suda; K Hatakeyama
Mutations of p53 in morphologically non-neoplastic mucosa of long-standing ulcerative colitis.
Japanese journal of cancer research : Gann 2001;92(2):119-26.
2001: H Iwamatsu; Ken Nishikura; Hidenobu Watanabe; Yoichi Ajioka; H Hashidate; H Kashimura; H Asakura
Heterogeneity of p53 mutational status in the superficial spreading type of early gastric carcinoma.
Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association 2001;4(1):20-6.
2000: Yoichi Ajioka; Hidenobu Watanabe; S Kazama; H Hashidate; J Yokoyama; S Yamada; H Takaku; Ken Nishikura
Early colorectal cancer with special reference to the superficial nonpolypoid type from a histopathologic point of view.
World journal of surgery 2000;24(9):1075-80.
2000: Shintaro Komukai; Tadashi Nishimaki; Hidenobu Watanabe; Yoichi Ajioka; Tsutomu Suzuki; Katsuyoshi Hatakeyama
Significance of immunohistochemically demonstrated micrometastases to lymph nodes in esophageal cancer with histologically negative nodes.
Surgery 2000;127(1):40-6.
1999: Hiroyuki Matsubayashi; Hidenobu Watanabe; T Yamaguchi; Yoichi Ajioka; Ken Nishikura; Mitsuya Iwafuchi; M Yamano; Hiroshi Kijima; T Saito
Multiple K-ras mutations in hyperplasia and carcinoma in cases of human pancreatic carcinoma.
Japanese journal of cancer research : Gann 1999;90(8):841-8.
1999: Hidenobu Watanabe; K Date; Takao Itoi; Hiroyuki Matsubayashi; N Yokoyama; M Yamano; Yoichi Ajioka; Ken Nishikura
Histological and genetic changes in malignant transformation of gallbladder adenoma.
Annals of oncology : official journal of the European Society for Medical Oncology / ESMO 1999;10 Suppl 4():136-9.
1998: N Yokoyama; Hidenobu Watanabe; Yoichi Ajioka; Ken Nishikura; K Date; Hiroshi Kijima; Y Shirai; K Hatakeyama
[Genetic alterations in gallbladder carcinoma: a review].
Nihon Geka Gakkai zasshi 1998;99(10):687-95.
1998: Hiroyuki Matsubayashi; Hidenobu Watanabe; Ken Nishikura; Yoichi Ajioka; T Maejima; Hiroshi Kijima; T Saitoh
Advantages of immunostaining over DNA analysis using PCR amplification to detect p53 abnormality in long-term formalin-fixed tissues of human colorectal carcinomas.
Journal of gastroenterology 1998;33(5):662-9.
1998: S Kuwabara; Tadashi Nishimaki; Yoichi Ajioka; Shintaro Komukai; Tsutomu Suzuki; Hidenobu Watanabe; Katsuyoshi Hatakeyama
Determination of primary foci of metastatic tumors by p53 mutational analysis in intraesophageal multiple carcinomas.
Digestive diseases and sciences 1998;43(8):1675-7.
1998: Yoichi Ajioka; H Watanabe; J R Jass; Y Yokota; M Kobayashi; K Nishikura
Infrequent K-ras codon 12 mutation in serrated adenomas of human colorectum.
Gut 1998;42(5):680-4.
1998: S Kuwabara; Yoichi Ajioka; Hidenobu Watanabe; J Hitomi; Ken Nishikura; K Hatakeyama
Heterogeneity of p53 mutational status in esophageal squamous cell carcinoma.
Japanese journal of cancer research : Gann 1998;89(4):405-10.
1998: N Yokoyama; J Hitomi; Hidenobu Watanabe; Yoichi Ajioka; M Pruyas; I Serra; Y Shirai; K Hatakeyama
Mutations of p53 in gallbladder carcinomas in high-incidence areas of Japan and Chile.
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 1998;7(4):297-301.
1998: A Kuwabara; Hidenobu Watanabe; Yoichi Ajioka; K Yasuda; H Saito; K Matsuda; Hiroshi Kijima; K Hatakeyama
Alteration of p53 clonality accompanying colorectal cancer progression.
Japanese journal of cancer research : Gann 1998;89(1):40-6.
1997: M Sasaki; Hidenobu Watanabe; J R Jass; Yoichi Ajioka; M Kobayashi; K Matsuda; Katsuyoshi Hatakeyama
Occult lymph node metastases detected by cytokeratin immunohistochemistry predict recurrence in "node-negative" colorectal cancer.
Journal of gastroenterology 1997;32(6):758-64.
1997: K Yasuda; Yoichi Ajioka; Hidenobu Watanabe; K Matsuda; S Kitano
Morphogenesis and development of superficial spreading tumor of the colon and rectum.
Pathology international 1997;47(11):769-74.
1997: S Ryozawa; Hidenobu Watanabe; M Abe; Yoichi Ajioka; Ken Nishikura; K Okita
Macroscopic and stereomicroscopic diagnosis of superficial flat-type early carcinomas of the gallbladder.
Journal of gastroenterology 1997;32(5):635-42.
1997: K Kasuya; Hidenobu Watanabe; T Nakasako; Yoichi Ajioka; Y Koyanagi
p53 protein overexpression and K-ras codon 12 mutation in pancreatic ductal carcinoma: correlation with histologic factors.
Pathology international 1997;47(8):531-9.
1997: T Itoi; Hidenobu Watanabe; M Yoshida; Yoichi Ajioka; Ken Nishikura; T Saito
Correlation of p53 protein expression with gene mutation in gall-bladder carcinomas.
Pathology international 1997;47(8):525-30.
1996: K Matsuda; Hidenobu Watanabe; Yoichi Ajioka; M Kobayashi; H Saito; M Sasaki; K Yasuda; A Kuwabara; Ken Nishikura; T Muto
Ulcerative colitis with overexpression of p53 preceding overt histological abnormalities of the epithelium.
Journal of gastroenterology 1996;31(6):860-7.
1996: M Kobayashi; Hidenobu Watanabe; Yoichi Ajioka; T Honma; H Asakura
Effect of K-ras mutation on morphogenesis of colorectal adenomas and early cancers: relationship to distribution of proliferating cells.
Human pathology 1996;27(10):1042-9.
1996: Takao Itoi; Hidenobu Watanabe; Yoichi Ajioka; Y Oohashi; K Takel; Ken Nishikura; Y Nakamura; A Horil; T Saito
APC, K-ras codon 12 mutations and p53 gene expression in carcinoma and adenoma of the gall-bladder suggest two genetic pathways in gall-bladder carcinogenesis.
Pathology international 1996;46(5):333-40.
1995: Yoichi Ajioka; Hidenobu Watanabe; K Matsuda
Over-expression of p53 protein in neoplastic changes in ulcerative colitis: immunohistochemical study.
Journal of gastroenterology 1995;30 Suppl 8():33-5.
1995: S Maeo; Yoichi Ajioka; Hidenobu Watanabe; M Kobayashi; M Kobayashi
The proliferating cell nuclear antigen (PCNA) index correlates with the grade of cytologic atypia in well-differentiated early adenocarcinomas of the large intestine.
Pathology international 1995;45(5):359-65.
1995: Y Oohashi; Hidenobu Watanabe; Yoichi Ajioka; K Hatakeyama
p53 immunostaining distinguishes malignant from benign lesions of the gall-bladder.
Pathology international 1995;45(1):58-65.
1995: M Kobayashi; Hidenobu Watanabe; Yoichi Ajioka; M Yoshida; J Hitomi; H Asakura
Correlation of p53 protein expression with apoptotic incidence in colorectal neoplasia.
Virchows Archiv : an international journal of pathology 1995;427(1):27-32.
1994: K Kasuya; Hidenobu Watanabe; Yoichi Ajioka
DNA image cytometry comparative study of on-tissue and smear sections of human carcinoma.
Journal of gastroenterology 1994;29(3):388.
1994: M Kobayashi; Hidenobu Watanabe; Yoichi Ajioka; T Honma; H Asakura
Proliferating cell nuclear antigen/cyclin expression in small adenomas of the large intestine in relation to size and macroscopic appearance.
Journal of gastroenterology 1994;29(2):139-46.
1994: T Motoyama; T Ohta; Yoichi Ajioka; Hidenobu Watanabe
Neoplastic and non-neoplastic intermediate trophoblasts: an immunohistochemical and ultrastructural study.
Pathology international 1994;44(1):57-65.
1993: T Oyama; Hidenobu Watanabe; M Iwafuchi; T Maejima; Yoichi Ajioka
Diagnostic value of proliferating cell nuclear antigen for myogenic tumors of the stomach.
Gastroenterologia Japonica 1993;28(2):193-200.
1993: M Sato; Hidenobu Watanabe; Yoichi Ajioka; Y Noda; Y Sakai
Nucleolar and dispersed nucleolar organiser regions (NORs) in differentiating neoplastic from atypical non-neoplastic lesions of the pancreas.
Gastroenterologia Japonica 1993;28(1):72-80.
1992: Y Noda; Hidenobu Watanabe; M Iwafuchi; K Furuta; N Ishihara; M Satoh; Yoichi Ajioka
Carcinoids and endocrine cell micronests of the minor and major duodenal papillae. Their incidence and characteristics.
Cancer 1992;70(7):1825-33.
1992: M Kobayashi; Hidenobu Watanabe; Yoichi Ajioka; S Maeo
PCNA-positive cell distribution in depressed types of early carcinoma and adenoma of the large intestine.
Gastroenterologia Japonica 1992;27(5):684.
1992: T Chida; Yoichi Ajioka; Hidenobu Watanabe
Use of nucleolar organizer regions in the histopathological diagnosis of colorectal epithelial neoplasia.
Japanese journal of clinical oncology 1992;22(2):73-8.
1991: M Sato; T Chida; Hidenobu Watanabe; Y Noda; Yoichi Ajioka; A Katayama; M Abe
A modified argyrophilic nucleolar organiser region (AgNOR) staining method for nucleolar staining in formalin-fixed, paraffin-embedded materials.
Gastroenterologia Japonica 1991;26(3):391.
1991: T Chida; Hidenobu Watanabe; Yoichi Ajioka; T Homma; K Hatakeyama; T Muto
[The usefulness of nucleolar organizer regions in diagnosis of colonic epithelial neoplasia].
Nihon Geka Gakkai zasshi 1991;92(3):313-9.
1990: M Iwafuchi; Hidenobu Watanabe; Yoichi Ajioka; T Shimoda; A Iwashita; S Ito
Immunohistochemical and ultrastructural studies of twelve argentaffin and six argyrophil carcinoids of the appendix vermiformis.
Human pathology 1990;21(7):773-80.
1987: M Iwafuchi; Hidenobu Watanabe; Hiroshi Kijima; Yoichi Ajioka; T Shimoda; S Ito
Argyrophil, non-argentaffin carcinoids of the appendix vermiformis. Immunohistochemical and ultrastructural studies.
Acta pathologica japonica 1987;37(8):1237-47.