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Kenji Niwa

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Kenji Niwa; Mayuko Nonaka-Shibata; Eriko Satoh; Yoshiyuki Hirose
Cervical large cell neuroendocrine carcinoma with cytologic presentation: a case report.
Kenji Niwa; Kokyo Onogi; Yun Wu; Hideki Mori; Yosuke Inoue; Teruhiko Tamaya
Prognostic implications of cimetidine on advanced serous ovarian carcinoma related to cyclooxygenase-2 expression.
Kenji Niwa; Kyoko Onogi; Y Wu; Hideki Mori; Rosanne C Harrigan; Teruhiko Tamaya
Clinical implication of medroxyprogesterone acetate against advanced ovarian carcinoma: a pilot study.

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All Publications

2010: Kenji Niwa; Mayuko Nonaka-Shibata; Eriko Satoh; Yoshiyuki Hirose
Cervical large cell neuroendocrine carcinoma with cytologic presentation: a case report.
Acta cytologica 2010;54(5 Suppl):977-80.
2008: Kenji Niwa; Kokyo Onogi; Yun Wu; Hideki Mori; Yosuke Inoue; Teruhiko Tamaya
Prognostic implications of cimetidine on advanced serous ovarian carcinoma related to cyclooxygenase-2 expression.
Molecular medicine reports 2008;1(1):119-22.
2008: Kenji Niwa; Kyoko Onogi; Y Wu; Hideki Mori; Rosanne C Harrigan; Teruhiko Tamaya
Clinical implication of medroxyprogesterone acetate against advanced ovarian carcinoma: a pilot study.
European journal of gynaecological oncology 2008;29(3):252-5.
2007: Kenji Niwa; Zenglin Lian; Kyoko Onogi; Wu Yun; Liulin Tang; Hideki Mori; Teruhiko Tamaya
Preventive effects of glycyrrhizin on estrogen-related endometrial carcinogenesis in mice.
Oncology reports 2007;17(3):617-22.
2007: Kenji Niwa; Kyoko Onogi; W Yun; Y Hirose; Teruhiko Tamaya
Primary lymphoma of the uterine corpus: an unusual location for a common disease--case report.
European journal of gynaecological oncology 2007;28(6):522-3.
2007: Kenji Niwa; Kyoko Onogi; Y Wu; Hideki Mori; Teruhiko Tamaya
Primary endodermal sinus tumor of the vulva in a 52-year-old woman with long-term survival: a case report.
European journal of gynaecological oncology 2007;28(6):506-8.
2007: Kenji Niwa; R Hirose; T Mizuno; Y Hirose; Teruhiko Tamaya
Pseudomyxoma peritonei and mucinous pyometral fluid arising from an ovarian borderline mucinous tumor: case report.
European journal of gynaecological oncology 2007;28(2):145-6.
2007: Y Wu; Kenji Niwa; Kyoko Onogi; Liulin Tang; Hideki Mori; Teruhiko Tamaya
Effects of selective estrogen receptor modulators and genistein on the expression of ERalpha/beta and COX-1/2 in ovarectomized mouse uteri.
European journal of gynaecological oncology 2007;28(2):89-94.
2006: Kyoko Onogi; Kenji Niwa; Liulin Tang; Wu Yun; Hideki Mori; Teruhiko Tamaya
Inhibitory effects of Hochu-ekki-to on endometrial carcinogenesis induced by N-methyl-N-nitrosourea and 17beta-estradiol in mice.
Oncology reports 2006;16(6):1343-8.
2006: Zenglin Lian; Kenji Niwa; Kyoko Onogi; Hideki Mori; Rosanne C Harrigan; Teruhiko Tamaya
Anti-tumor effects of herbal medicines on endometrial carcinomas via estrogen receptor-alpha-related mechanism.
Oncology reports 2006;15(5):1133-6.
2006: Liu Lin Tang; Yasuhiro Yokoyama; Xiaoyun Wan; Shigenori Iwagaki; Kenji Niwa; Teruhiko Tamaya
PTEN sensitizes epidermal growth factor-mediated proliferation in endometrial carcinoma cells.
Oncology reports 2006;15(4):855-9.
2005: Kenji Niwa; Keiko Tagami; Zenglin Lian; Kyoko Onogi; Hideki Mori; Teruhiko Tamaya
Outcome of fertility-preserving treatment in young women with endometrial carcinomas.
BJOG : an international journal of obstetrics and gynaecology 2005;112(3):317-20.
2005: Jingchun Gao; Kenji Niwa; Masao Takemura; Wenshu Sun; Kyoko Onogi; Yun Wu; Mitsuru Seishima; Hideki Mori; Teruhiko Tamaya
Significant anti-proliferation of human endometrial cancer cells by combined treatment with a selective COX-2 inhibitor NS398 and specific MEK inhibitor U0126.
International journal of oncology 2005;26(3):737-44.
2004: Jingchun Gao; Kenji Niwa; Wenshu Sun; Masao Takemura; Zenglin Lian; Kyoko Onogi; Mitsuru Seishima; Hideki Mori; Teruhiko Tamaya
Non-steroidal anti-inflammatory drugs inhibit cellular proliferation and upregulate cyclooxygenase-2 protein expression in endometrial cancer cells.
Cancer science 2004;95(11):901-7.
2004: Keiko Tagami; Kenji Niwa; Zenglin Lian; Jingchun Gao; Hideki Mori; Teruhiko Tamaya
Preventive effect of Juzen-taiho-to on endometrial carcinogenesis in mice is based on Shimotsu-to constituent.
Biological & pharmaceutical bulletin 2004;27(2):156-61.
2004: Zenglin Lian; Kenji Niwa; Jingchun Gao; Keiko Tagami; K Onczi; Hideki Mori; Teruhiko Tamaya
Soybean isoflavones inhibit estrogen-stimulated gene expression in mouse uteri.
European journal of gynaecological oncology 2004;25(3):311-4.
2003: Kenji Niwa; Keiko Tagami; Zenglin Lian; Jingchun Gao; Hideki Mori; Teruhiko Tamaya
Topical vidarabine or 5-fluorouracil treatment against persistent HPV in genital (pre)cancerous lesions.
Oncology reports 2003;10(5):1437-41.
2003: Zenglin Lian; Kenji Niwa; Jingchun Gao; Keiko Tagami; Hideki Mori; Teruhiko Tamaya
Association of cellular apoptosis with anti-tumor effects of the Chinese herbal complex in endocrine-resistant cancer cell line.
Cancer detection and prevention 2003;27(2):147-54.
2002: Zenglin Lian; Kenji Niwa; Jingchun Gao; Keiko Tagami; Midori Hashimoto; Yasuhiro Yokoyama; Hideki Mori; Teruhiko Tamaya
Shimotsu-to is the agent in Juzen-taiho-to responsible for the prevention of endometrial carcinogenesis in mice.
Cancer letters 2002;182(1):19-26.
2002: Kenji Niwa; Midori Hashimoto; Zenglin Lian; Jingchun Gao; Keiko Tagami; Yasuhiro Yokoyama; Hideki Mori; Teruhiko Tamaya
Inhibitory effects of toremifene on N-methyl-N-nitrosourea and estradiol-17beta-induced endometrial carcinogenesis in mice.
Japanese journal of cancer research : Gann 2002;93(6):626-35.
2001: Hideki Mori; Kenji Niwa; Qiao Zheng; Yasuhiro Yamada; Keiko Sakata; Naoki Yoshimi
Cell proliferation in cancer prevention; effects of preventive agents on estrogen-related endometrial carcinogenesis model and on an in vitro model in human colorectal cells.
Mutation research 2001;480-481():201-7.
2001: Zenglin Lian; Kenji Niwa; Keiko Tagami; Midori Hashimoto; Jingchun Gao; Yasuhiro Yokoyama; Hideki Mori; Teruhiko Tamaya
Preventive effects of isoflavones, genistein and daidzein, on estradiol-17beta-related endometrial carcinogenesis in mice.
Japanese journal of cancer research : Gann 2001;92(7):726-34.
2001: Kenji Niwa; Midori Hashimoto; S Morishita; Zenglin Lian; Keiko Tagami; Hideki Mori; Teruhiko Tamaya
Preventive effects of Juzen-taiho-to on N-methyl-N-nitrosourea and estradiol-17beta-induced endometrial carcinogenesis in mice.
Carcinogenesis 2001;22(4):587-91.
2001: Zenglin Lian; Jiro Fujimoto; Y Yokoyama; Kenji Niwa; Teruhiko Tamaya
Herbal complex suppresses telomerase activity in chemo-endocrine resistant cancer cell lines.
European journal of gynaecological oncology 2001;22(5):347-9.
2000: Kenji Niwa; Midori Hashimoto; S Morishita; Yasuhiro Yokoyama; Zenglin Lian; Keiko Tagami; Hideki Mori; Teruhiko Tamaya
Preventive effects of danazol on endometrial carcinogenesis in mice.
Cancer letters 2000;158(2):133-9.
2000: Yasuhiro Yokoyama; A Shinohara; Y Takahashi; Xiaoyun Wan; S Takahashi; Kenji Niwa; Teruhiko Tamaya
Synergistic effects of danazol and mifepristone on the cytotoxicity of UCN-01 in hormone-responsive breast cancer cells.
Anticancer research 2000;20(5A):3131-5.
2000: Yasuhiro Yokoyama; Xiaoyun Wan; A Shinohara; S Takahashi; Y Takahashi; Kenji Niwa; Teruhiko Tamaya
Expression of PTEN and PTEN pseudogene in endometrial carcinoma.
International journal of molecular medicine 2000;6(1):47-50.
2000: Ryou Misao; Kenji Niwa; Shigenori Iwagaki; K Shimokawa; Teruhiko Tamaya
Leiomyoma of the fallopian tube.
Gynecologic and obstetric investigation 2000;49(4):279-80.
2000: Kenji Niwa; Atsushi Imai; M Hashimoto; Yasuhiro Yokoyama; Hideki Mori; Y Matsuda; Teruhiko Tamaya
A case-control study of uterine endometrial cancer of pre- and post-menopausal women.
Oncology reports 2000;7(1):89-93.
1999: Kenji Niwa; Midori Hashimoto; S Morishita; Yasuhiro Yokoyama; Hideki Mori; Teruhiko Tamaya
Preventive effects of Glycyrrhizae radix extract on estrogen-related endometrial carcinogenesis in mice.
Japanese journal of cancer research : Gann 1999;90(7):726-32.
1999: Kenji Niwa; T Murase; S Morishita; M Hashimoto; N Itoh; Teruhiko Tamaya
p53 overexpression and mutation in endometrial carcinoma: inverted relation with estrogen and progesterone receptor status.
Cancer detection and prevention 1999;23(2):147-54.
1998: Kenji Niwa; S Morishita; Midori Hashimoto; T Itoh; Jiro Fujimoto; Hideki Mori; Teruhiko Tamaya
Effects of tamoxifen on endometrial carcinogenesis in mice.
Japanese journal of cancer research : Gann 1998;89(5):502-9.
1996: A Mudigdo; Kenji Niwa; S Morishita; M Hashimoto; T Murase; Teruhiko Tamaya
Silver-stained nucleolar organizer regions in the uterine myomatous tumors.
Cancer letters 1996;107(2):273-5.
1996: Kenji Niwa; S Morishita; T Murase; A Mudigdo; Takuji Tanaka; Hideki Mori; Teruhiko Tamaya
Chronological observation of mouse endometrial carcinogenesis induced by N-methyl-N-nitrosourea and 17 beta-estradiol.
Cancer letters 1996;104(1):115-9.
1995: Kenji Niwa; S Morishita; T Murase; I Kawabata; Atsushi Imai; Kuniyasu Shimokawa; Teruhiko Tamaya
Successful pregnancy in a patient with pseudomyxoma peritonei arising from ovarian mucinous cystadenocarcinoma treated with cisplatin.
Gynecologic oncology 1995;59(3):398-400.
1995: S Morishita; Kenji Niwa; S Ichigo; M Hori; T Murase; Jiro Fujimoto; Teruhiko Tamaya
Overexpressions of c-fos/jun mRNA and their oncoproteins (Fos/Jun) in the mouse uterus treated with three natural estrogens.
Cancer letters 1995;97(2):225-31.
1995: Kenji Niwa; S Morishita; T Murase; N Itoh; Takuji Tanaka; Hideki Mori; Teruhiko Tamaya
Inhibitory effects of medroxyprogesterone acetate on mouse endometrial carcinogenesis.
Japanese journal of cancer research : Gann 1995;86(8):724-9.
1995: T Murase; Kenji Niwa; S Morishita; N Itoh; Hideki Mori; Takuji Tanaka; Teruhiko Tamaya
Rare occurrence of p53 and ras gene mutations in preneoplastic and neoplastic mouse endometrial lesions induced by N-methyl-N-nitrosourea and 17 beta-estradiol.
Cancer letters 1995;92(2):223-7.
1995: Kenji Niwa; T Murase; S Morishita; Takuji Tanaka; K Shimokawa; Teruhiko Tamaya
Changes in the number of silver-stained nucleolar organizer regions in the normal, preneoplastic, and neoplastic endometrium.
Cancer detection and prevention 1995;19(5):436-40.
1994: Kenji Niwa; M Itoh; T Murase; S Morishita; N Itoh; H Mori; Teruhiko Tamaya
Alteration of p53 gene in ovarian carcinoma: clinicopathological correlation and prognostic significance.
British journal of cancer 1994;70(6):1191-7.
1994: Kenji Niwa; Ryou Misao; T Hanabayashi; S Morishita; T Murase; M Itoh; N Itoh; Hideki Mori; Teruhiko Tamaya
Semi-quantitative analysis of DNA topoisomerase-I mRNA level using reverse transcription-polymerase chain reaction in cancer cell lines: its relation to cytotoxicity against camptothecin derivative.
Japanese journal of cancer research : Gann 1994;85(8):869-74.
1994: S Yamagiwa; Kenji Niwa; Yasuhiro Yokoyama; T Tanaka; T Murase; E Shimonaka; Kuniyasu Shimokawa; K Kato; Teruhiko Tamaya
Primary adenoid cystic carcinoma of Bartholin's gland. A case report.
Acta cytologica 1994;38(1):79-82.
1994: Kenji Niwa; Yasuhiro Yokoyama; Takuji Tanaka; T Murase; S Morishita; M Itoh; N Itoh; K Shimokawa; Teruhiko Tamaya
Successful pregnancy in a patient with endometrial carcinoma treated with medroxyprogesterone acetate.
Archives of gynecology and obstetrics 1994;255(2):91-4.
1993: Kenji Niwa; T Murase; T Furui; S Morishita; H Mori; Takuji Tanaka; Hideki Mori; Teruhiko Tamaya
Enhancing effects of estrogens on endometrial carcinogenesis initiated by N-methyl-N-nitrosourea in ICR mice.
Japanese journal of cancer research : Gann 1993;84(9):951-5.
1992: Yasuhiro Yokoyama; Kenji Niwa; Teruhiko Tamaya
Scattering of the silver-stained proteins of nucleolar organizer regions in Ishikawa cells by actinomycin D.
Experimental cell research 1992;202(1):77-86.
1992: Kenji Niwa; Yasuhiro Yokoyama; T Furui; Takuji Tanaka; Hideki Mori; H Mori; Teruhiko Tamaya
Changes of silver-stained nucleolar organizer regions in mouse endometrial carcinogenesis induced by N-methyl-N-nitrosourea and 17 beta-oestradiol.
Virchows Archiv. A, Pathological anatomy and histopathology 1992;421(5):387-91.
1991: Kenji Niwa; Takuji Tanaka; H Mori; Yasuhiro Yokoyama; T Furui; Hideki Mori; Teruhiko Tamaya
Rapid induction of endometrial carcinoma in ICR mice treated with N-methyl-N-nitrosourea and 17 beta-estradiol.
Japanese journal of cancer research : Gann 1991;82(12):1391-6.
1991: Yasuhiro Yokoyama; Kenji Niwa; Teruhiko Tamaya
Norethindrone scatters silver-stained nucleolar organizer regions of Ishikawa cells.
Cancer research 1991;51(21):5987-92.
1991: Atsushi Imai; T Itoh; Kenji Niwa; Teruhiko Tamaya
Elevated CA125 serum levels in a patient with tuberculous peritonitis.
Archives of gynecology and obstetrics 1991;248(3):157-9.
1991: Kenji Niwa; Takuji Tanaka; Shigeyuki Sugie; T Shinoda; K Kato; T Tamaya; Hideki Mori
Enhancing effect of ethanol or saké on methylazoxymethanol acetate-initiated large bowel carcinogenesis in ACI/N rats.
Nutrition and cancer 1991;15(3-4):229-37.
1991: Kenji Niwa; Yasuhiro Yokoyama; Takuji Tanaka; Hideki Mori; H Mori; Teruhiko Tamaya
Silver-stained nucleolar organizer regions in the normal, hyperplastic and neoplastic endometrium.
Virchows Archiv. A, Pathological anatomy and histopathology 1991;419(6):493-7.
1990: Yasuhiro Yokoyama; S Dilbaz; Kenji Niwa; Teruhiko Tamaya; D Serdar
Nucleolar organizer regions in malignant transformation of uterine cervix.
Gynecologic oncology 1990;39(3):309-13.
1990: Yasuhiro Yokoyama; M Mabuchi; I Kawabata; Kenji Niwa; Kuniyasu Shimokawa; Teruhiko Tamaya
Metastatic vulvar Paget's disease responding to combination chemotherapy: case report.
Japanese journal of clinical oncology 1990;20(4):426-30.
1989: Takuji Tanaka; T Shinoda; N Yoshimi; Kenji Niwa; H Iwata; Hideki Mori
Inhibitory effect of magnesium hydroxide on methylazoxymethanol acetate-induced large bowel carcinogenesis in male F344 rats.
Carcinogenesis 1989;10(3):613-6.
1989: Hideki Mori; Takuji Tanaka; Kenji Niwa; N Yoshimi; H Iwata; Yoshio Mori; A Hara
Induction of altered hepatocellular foci of hamster for a possible short-term assay for carcinogens.
Research communications in chemical pathology and pharmacology 1989;63(3):451-4.
1988: Takuji Tanaka; H Iwata; Kenji Niwa; Yoshio Mori; Hideki Mori
Inhibitory effect of ellagic acid on N-2-fluorenylacetamide-induced liver carcinogenesis in male ACI/N rats.
Japanese journal of cancer research : Gann 1988;79(12):1297-303.
1988: Kenji Niwa; N Yoshimi; S Sugie; H Sakamoto; Takuji Tanaka; K Kato; H Kaneko; Hideki Mori
A case of double cancer (pancreatic and ovarian adenocarcinomas) diagnosed by exfoliative and fine needle aspiration cytology.
Japanese journal of clinical oncology 1988;18(2):167-73.