1. Hikosaka, A., Futakuchi, M., Ogiso, T., Suzuki, S., Kohri, K., Shirai, T.: Lack of prophylactic effect of incadronate on skeletal lesions associated with implants of prostate cancer. Eur Urol., 49: 176-182, 2006.

2. Ohara, H., Nakazawa, T., Sano, H., Joh, T., Takahashi, S.: Histopathologic similarities of inflammatory pseudotumor to autoimmune pancreatitis: A morphologic and immunohistochemical study of 4 cases. Pancreas, 32:115-117, 2006.

3. Takahashi, S., Suzuki, S., Takahashi, S., Inaguma, S., Asamoto, M., Shirai, T.: Differences between latent and clinical prostate carcinomas: Lower cell proliferation activity in latent cases. Prostate, 66: 211-217, 2006.

4. Kuribayashi, M., Asamoto, M., Suzuki, S., Hokaiwado, N., Ogawa, K., Shirai, T.: Lack of modification of 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx) rat hepatocarcinogenesis by caffeine, a CYP1A2 inducer, points to complex counteracting influences. Cancer Lett, 232: 289-299, 2006.

5. Shirai, T., Ogawa, K., Takahashi, S.: Carcinogenic effects of mixtures of chemicals. J Toxicol Pathol, 19: 1-13, 2006.

6. Suzuki, S., Takahashi, S., Takahashi, S., Takeshita, K., Hikosaka, A., Wakita, T., Nishiyama, N., Fujita, T., Okamura, T., Shirai, T.: Expression of prothymosin alpha is correlated with development and progression in human prostate cancers. Prostate, 66: 463-469, 2006.

7. Kawabe, M., Sano, M., Hagiwara, A., Tamano, S., Suzuki, S., Shirai, T.: Lack of carcinogenicity of L-isoleucine in F344/DuCrj rats. Fd Chem Toxicol, 44: 278-285, 2006.

8. Kawai, N., Ito, A., Nakahara, Y., Honda, H., Kobayashi, T., Futakuchi, M., Shirai, T., Tozawa, K., Kohri, K.: Complete regression of experimental prostate cancer in nude mice by repeated hyperthermia using magnetite cationic liposomes and a newly developed solenoid containing a ferrite core. Prostate, 66: 718-727, 2006.

9. Ogawa, K., Masutani, M., Kato, K., Tang, M., Kamada, N., Suzuki, H., Nakagama, H., Sugimura, T., Shirai, T.: Parp-1 deficiency does not enhance liver carcinogenesis induced by 2-amino-3-methylimidazo[4,5-f]quinoline in mice. Cancer Lett, 236: 32-38, 2006.

10. Sunden, Y., Suzuki, T., Orba, Y., Umemura, T., Asamoto, M., Nagashima, K., Tanaka, S., Sawa, H.: Characterization and application of polyclonal antibodies that specifically recognize JC virus large T antigen. Acta Neuropathol, 111: 379-387, 2006.

11. Said, MM., Hokaiwado, N., Tang, M., Ogawa, K., Suzuki, S., Ghanem, HM., Esmat, AY., Asamoto, M., Rafaie, FM., Shirai, T.: Inhibition of prostate carcinogenesis in probasin/SV40 T antigen transgenic rats by leuprorelin, a luteinizing hormone-releasing hormone agonist. Cancer Sci, 97: 459-467, 2006.

12. Yamauchi, A., Kawai, K., Tsukamoto, S., Ideyama, Y., Shirai, T., Akaza, H.: Persistence of prostatic intraepithelial neoplasia after effective chemoprevention of microscopic prostate cancer with antiandrogen in a rat model. J Urol, 175: 348-352, 2006.

13. Murasaki, T., Asamoto, M., Hokaiwado, N., Ogawa, K., Shirai, T.: Limited effects of disrupted gap junctions in the liver on multi-organ carcinogenesis induced by diisopropanolnitrosamine in the mutant connexin 32 transgenic rat. J Toxicol Pathol, 19: 93-97, 2006.

14. Romanenko, AM., Morimura, K., Kinoshita, A., Wanibuchi, H., Takahashi, S., Zaparin, WK., Vinnichenko, WI., Vozianov, AF., Fukushima, S.: Upregulation of fibroblast growth factor receptor 3 and epidermal growth factor receptors, in association with Raf-1, in urothelial dysplasia and carcinoma in situ after the Chernobyl accident. Cancer Sci., 97:1168-1174, 2006.

15. Tamano, S., Kawabe, M., Ichihara, T., Hagiwara, A., Sano, M., Asamoto, M., Shirai, T.: Close relation of transforming growth factor-α positive hepatic foci to hepatocellular tumor development in the rat. J Toxicol Pathol, 19: 99-106, 2006.

16. Zhu, A., Rashid, A., Cleary, K., Abbruzzese, JL., Friess, H., Takahashi, S., Shirai, T., Li, D.: Detection of 2-amino-1-methy1-6-phenylimidazo[4,5-b]pyridine (PhIP)-DNA adducts in human pancreatic tissues. Biomarkers, 11: 319-328, 2006.

17. Imai, N., Doi, Y., Nabae, K., Tamano, S., Hagiwara, A., Kawabe, M., Ichihara, T., Ogawa, K., Shirai, T.: Lack of hinokitiol (beta-thujaplicin) carcinogenicity in F344/DuCrj rats. J Toxicol Sci, 31: 357-370, 2006.

18. Nabae, K., Doi, Y., Takahashi, S., Ichihara, T., Toda, C., Ueda, K., Okamoto, Y., Kojima, N., Tamano, S., Shirai, T.: Toxicity of di(2-ethylhexyl)phthalate (DEHP) and di(2-ethylhexyl)adipate (DEHA) under conditions of renal dysfunction induced with folic acid in rats: Enhancement of male reproductive toxicity of DEHP is associated with an increase of the mono-derivative. Reprod Toxicol, 22: 411-417, 2006.

19. Okamura, T., Uemoto, Y., Yamashita, K., Suzuki, S., Shirai, T., Hashimoto, Y., Kohri, K.: Pitfalls with MRI evaluation of prostate cancer detection: comparison of findings with histopathological assessment of retropubic radical prostatectomy specimens. Urol Int, 77: 301-306, 2006.

20. Nakayama, K., Kawano Y., Kawakami, Y., Moriwaki, N., Sekijima, M., Otsuka, M., Yakabe, Y., Miyaura, H., Saito, K., Sumida, K., Shirai, T.: Differences in gene expression profiles in the liver between carcinogenic and non-carcinogenic isomers of compounds given to rats in a 28-day repeat-dose toxicity study. Toxicol Appl Pharmacol, 217: 299-307, 2006.

21. Doi, Y., Ichihara, T., Hagiwara, A., Imai, N., Tamano, S., Orikoshi, H., Ogasawara, K., Sasaki, Y., Nakamura, M., Shirai, T.: A ninety-day oral toxicity study of a new type of processed gum arabic, from Acacia tree (Acacia senegal) exudates, in F344 rats. Fd Chem Toxicol, 44: 560-566, 2006.

22. Tsujimura, K., Asamoto, M., Suzuki, S., Hokaiwado, N., Ogawa, K., Shirai, T.: Prediction of carcinogenic potential by a toxicogenomic approach using rat hepatoma cells. Cancer Sci, 97: 1002-1010, 2006.