Hideyuki Akaza

Real-time Elastography for the Diagnosis of Prostate Cancer: Evaluation of Elastographic Moving Images (2009)

Miyagawa, Tomoaki, Tsutsumi, Masakazu, Matsumura, Takeshi, Kawazoe, Natsui, Ishikawa, Satoru, Shimokama, Tatsuro, ...

Objective Elastography is a technique for detecting the stiffness of tissues. We applied elastography for the diagnosis of prostate cancer and evaluated the usefulness of elastography for prostate...

Survival of Metastatic Germ Cell Cancer Patients Assessed by International Germ Cell Consensus Classification in Japan (2008)

Shintaku, Ichiro, Satoh, Makoto, Okajima, Eijiro, Fujimoto, Hiroyuki, Kamoto, Toshiyuki, Ogawa, Osamu, ...

Background As a risk classification system of metastatic germ cell tumors, the International Germ Cell Consensus (IGCC) classification was proposed in 1997 and has received broad approval. Since the...

Current Status of Endocrine Therapy for Prostate Cancer in Japan Analysis of Primary Androgen Deprivation Therapy on the Basis of Data Collected by J-CaP (2007)

Hinotsu, Shiro, Akaza, Hideyuki, Usami, Michiyuki, Ogawa, Osamu, Kagawa, Susumu, Kitamura, Tadaichi, ...

Background Based on the data of current status of endocrine therapy for prostate cancer registered in the Japan Study Group of Prostate Cancer (J-CaP), we conducted an analysis of primary androgen...

Phase II Study to Investigate the Efficacy, Safety, and Pharmacokinetics of Sorafenib in Japanese Patients with Advanced Renal Cell Carcinoma (2007)

Akaza, Hideyuki, Tsukamoto, Taiji, Murai, Masaru, Nakajima, Keiko, Naito, Seiji

Objective Sorafenib (Nexavar®) is an oral multi-kinase inhibitor that targets tumor growth and angiogenesis. This phase II study investigated efficacy, safety, and pharmacokinetics of sorafenib in...

Nrf2 and p53 cooperatively protect against BBN-induced urinary bladder carcinogenesis (2007)

Iida, Katsuyuki, Itoh, Ken, Maher, Jonathan M., Kumagai, Yoshito, Oyasu, Ryoichi, Mori, Yukio, ...

Nuclear factor-erythroid 2 (NF-E2)-related factor 2 (Nrf2), a transcription factor that regulates inducible expression of detoxifying enzymes, is critical in preventing...

Three-weekly Docetaxel with Prednisone is Feasible for Japanese Patients with Hormone-refractory Prostate Cancer: A Retrospective Comparative Study with Weekly Docetaxel Alone (2007)

Shimazui, Toru, Kawai, Koji, Miyanaga, Naoto, Kojima, Takahiro, Sekido, Noritoshi, Hinotsu, Shiro, ...

Background We previously reported that weekly treatment with docetaxel alone is useful for and well tolerated by patients with hormone-refractory prostate cancer (HRPC). Here, we compare it with the...

Background Variables for the Patients with Invasive Bladder Cancer Suitable for Bladder-preserving Therapy (2007)

Miyanaga, Naoto, Akaza, Hideyuki, Hinotsu, Shiro, Joraku, Akira, Oikawa, Takehiro, Sekido, Noritoshi, ...

Objective The present study was undertaken to identify the patients suitable for bladder preservation by analysis of our data. Methods The subjects of this study were all 72 patients with T2–3N0M0...

Does Tumor Size or Microvascular Invasion Affect Prognosis in Patients with Renal Cell Carcinoma? (2007)

Miyagawa, Tomoaki, Shimazui, Toru, Hinotsu, Shiro, Oikawa, Takehiro, Sekido, Noritoshi, Miyanaga, Naoto, ...

Background We retrospectively evaluated the effects of tumor size and microvascular tumor invasion on the clinical outcomes of patients who had undergone radical nephrectomy for renal cell carcinoma...

Treatment Outcome of Metastatic Testicular Cancer at a Single Institution in Japan, a Country with Low Incidence of Germ Cell Tumor (2006)

Kawai, Koji, Hinotsu, Shiro, Oikawa, Takehiro, Sekido, Noritoshi, Hattori, Kazunori, Miyanaga, Naoto, ...

Background Incidence of testicular cancer is low in Japan. Recent investigations showed that the outcome of metastatic testicular cancer is associated with the experience of the treatment...

Completion and Toxicity of Induction Chemotherapy for Metastatic Testicular Cancer: An Updated Evaluation of Japanese Patients (2006)

Kawai, Koji, Ando, Satoshi, Hinotsu, Shiro, Oikawa, Takehiro, Sekido, Noritoshi, Miyanaga, Naoto, ...

Background: Combination of bleomycin, etoposide and cisplatin (BEP) remains the standard chemotherapy for testicular cancer. Since the development of BEP in the 1980s, there has been a considerable...

Neutropenic Colitis during Standard Dose Combination Chemotherapy with Nedaplatin and Irinotecan for Testicular Cancer (2006)

Takaoka, Ei-Ichiro, Kawai, Koji, Ando, Satoshi, Shimazui, Toru, Akaza, Hideyuki

A 54-year-old man received combination chemotherapy with nedaplatin and irinotecan as salvage chemotherapy for refractory non-seminomatous testicular cancer. The patient developed abdominal pain and...

Neutropenic Colitis during Standard Dose Combination Chemotherapy with Nedaplatin and Irinotecan for Testicular Cancer (2006)

Takaoka, Ei-Ichiro, Kawai, Koji, Ando, Satoshi, Shimazui, Toru, Akaza, Hideyuki

A 54-year-old man received combination chemotherapy with nedaplatin and irinotecan as salvage chemotherapy for refractory non-seminomatous testicular cancer. The patient developed abdominal pain and...

Completion and Toxicity of Induction Chemotherapy for Metastatic Testicular Cancer: An Updated Evaluation of Japanese Patients (2006)

Kawai, Koji, Ando, Satoshi, Hinotsu, Shiro, Oikawa, Takehiro, Sekido, Noritoshi, Miyanaga, Naoto, ...

Background: Combination of bleomycin, etoposide and cisplatin (BEP) remains the standard chemotherapy for testicular cancer. Since the development of BEP in the 1980s, there has been a considerable...

A Case of Metastatic Testicular Cancer Complicated by Tumour Lysis Syndrome and Choriocarcinoma Syndrome (2006)

Kawai, Koji, Takaoka, Ei-Ichiro, Naoi, Makito, Mori, Kensaku, Minami, Manabu, Shimazui, Toru, ...

A 26-year-old man was referred to our hospital for treatment of metastatic testicular cancer. The pathological diagnosis was choriocarcinoma with seminoma. Sequential computerized tomography...

Treatment Outcome of Metastatic Testicular Cancer at a Single Institution in Japan, a Country with Low Incidence of Germ Cell Tumor (2006)

Kawai, Koji, Hinotsu, Shiro, Oikawa, Takehiro, Sekido, Noritoshi, Hattori, Kazunori, Miyanaga, Naoto, ...

Background: Incidence of testicular cancer is low in Japan. Recent investigations showed that the outcome of metastatic testicular cancer is associated with the experience of the treatment...

Characteristics of Patients with Prostate Cancer Who Have Initially been Treated by Hormone Therapy in Japan: J-CaP Surveillance (2004)

Akaza, Hideyuki, Usami, Michiyuki, Hinotsu, Shiro, Ogawa, Osamu, Kagawa, Susumu, Kitamura, Tadaichi, ...

Objective: Hormone therapy for prostate cancer has empirically prevailed in Japan. We planned to evaluate the trends and outcome of hormone therapy for establishing an adequate guideline. Methods:...

Weekly Administration of Docetaxel in Patients with Hormone-refractory Prostate Cancer: a Pilot Study on Japanese Patients (2004)

Kojima, Takahiro, Shimazui, Toru, Onozawa, Mizuki, Tsukamoto, Sadamu, Hinotsu, Shiro, Miyanaga, Naoto, ...

Objective: Although treatment of hormone-refractory prostate cancer (HRPC) is difficult, a single-agent weekly dose of docetaxel has been reported as a promising regimen for patients with HRPC. The...

Comparisons of Percent Equol Producers between Prostate Cancer Patients and Controls: Case-controlled Studies of Isoflavones in Japanese, Korean and American Residents (2004)

Akaza, Hideyuki, Miyanaga, Naoto, Takashima, Naomi, Naito, Seiji, Hirao, Yoshihiko, Tsukamoto, Taiji, ...

Background: Our previous case-control study revealed that the Japanese residents in Japan could be divided into those who are able to degrade daidzein, a soybean isoflavone, to equol and those...

A Clinical Study of PMCJ-9 (Bacillus Calmette-Guerin Connaught Strain) Treatment of Superficial Bladder Cancer and Carcinoma In Situ of the Bladder (2003)

Akaza, Hideyuki, Koiso, Kenkichi, Ozono, Seiichiro, Kuroda, Masao, Kameyama, Shuji, Okajima, Eigoro, ...

Background: Intravesical Bacillus Calmette–Guérin (BCG) is now a standard treatment for Ta, T1 carcinoma and carcinoma in situ (CIS) of the urinary bladder. In Japan, however, only BCG Tokyo 172...

The Limited Efficacy of Methotrexate, Actinomycin D and Cisplatin (MAP) for Patients with Advanced Testicular Cancer (2003)

Miyazaki, Jun, Kawai, Koji, Hayashi, Hitoshi, Onozawa, Mizuki, Tsukamoto, Sadamu, Miyanaga, Naoto, ...

Background: Combination chemotherapy of methotrexate, actinomycin D and cisplatin (MAP) is reported to be effective against gestational choriocarcinoma. Methods: Eight patients with metastatic...

Paclitaxel, Ifosfamide and Cisplatin Regimen is Feasible for Japanese Patients with Advanced Germ Cell Cancer (2003)

Kawai, Koji, Miyazaki, Jun, Tsukamoto, Sadamu, Hinotsu, Shiro, Hattori, Kazunori, Shimazui, Toru, ...

Background: Paclitaxel, ifosfamide and cisplatin (TIP) has been tested with successful results on metastatic testicular cancer in Western countries. Because paclitaxel, the key drug of this regimen,...

Is Daidzein Non-metabolizer a High Risk for Prostate Cancer? A Case-controlled Study of Serum Soybean Isoflavone Concentration (2002)

Akaza, Hideyuki, Miyanaga, Naoto, Takashima, Naomi, Naito, Seiji, Hirao, Yoshihiko, Tsukamoto, Taiji, ...

Background: It has been postulated that soybean isoflavones act as inhibitory factors in prostate cancer. However, to date there have been no case-controlled clinical studies carried out to compare...

The Influence of Handling Censored Data on Estimating Progression-free Survival in Cancer Clinical Trials (JCOG9913-A) (2002)

Niimi, Miyuki, Yamamoto, Seiichiro, Fukuda, Haruhiko, Ishizuka, Naoki, Akaza, Hideyuki

Background: Progression-free survival (PFS) is a common endpoint in cancer clinical trials. This study was undertaken to assess the impact of data errors and data handling on the statistical...

Treated Natural History of Superficial Bladder Cancer (2001)

Ozono, Seiichiro, Hinotsu, Shiro, Tabata, Shoichi, Takashima, Kenji, Fujimoto, Kiyohide, Okajima, Eigoro, ...

Background: The present study was conducted to examine the natural history of superficial bladder cancer. Methods: One hundred and forty-four patients with superficial bladder cancer who had been...

Early Results of LH-RH Agonist Treatment with or without Chlormadinone Acetate for Hormone Therapy of Naive Localized or Locally Advanced Prostate Cancer: A Prospective and Randomized Study (2000)

Akaza, Hideyuki, Homma, Yukio, Okada, Kiyoki, Yokoyama, Masao, Moriyama, Nobuo, Usami, Michiyuki, ...

Background: The majority of patients with localized and some cases of locally advanced prostate cancer undergo radical prostatectomy. However, radical prostatectomy cannot always be selected for...

Transgenic rats carrying copies of the human c-Ha-ras proto-oncogene exhibit enhanced susceptibility to N-butyl-N-(4-hydroxybutyl)nitrosamine bladder carcinogenesis (2000)

Ota, Tomonori, Asamoto, Makoto, Toriyama-Baba, Hiroyasu, Yamamoto, Fumi, Matsuoka, Yoichiro, Ochiya, Takahiro, ...

We have established a transgenic rat line carrying three copies of the human c-Ha-ras proto-oncogene with its own original promoter region, Jcl/SD-TgN(HrasGen)128Ncc (Hras128) rat. c-Ha-ras protein...

Screening for Prostate Cancer Using Prostate-specific Antigen Alone as a First-line Checkup Parameter: Results of the Health Checkup System (2000)

Uchida, Katsunori, Takeshima, Hitoshi, Akaza, Hideyuki, Ono, Yukio

Background: The incidence of prostate cancer in Japan is not very high but it is the most increasing malignant tumor form. To decrease the mortality from cancer, detection of early cancer and early...

A Prospective, Randomized Controlled Study on the Treatment of Stage C and Stage D Prostatic Cancer with Estracyt in Combination with Other Chemotherapeutic Agents (1988)

Akaza, Hideyuki, Isurugi, Koichiro, Oishi, Yukihiko, Kitajima, Kiyoaki, Sawamura, Yoshikatsu, Baba, Shiro, ...

The present study was designed to investigate the efficacy of various combinations of chemotherapeutic agents in the treatment of prostatic cancer in a group refractory to antiandrogenic therapy...

Triple Urogenital Cancer in a Patient with a History of Heavy Smoking Who Had Been Exposed to the Hiroshima Atomic Bomb Explosion (1988)

Hashimoto, Makoto, Akaza, Hideyuki, Shibamoto, Kenshu, Kishi, Hiroichi, Umeda, Takashi, Isurugi, Koichiro, ...

A survivor of the Hiroshima atomic bomb experienced triple cancer of the urogenital organs after a long history of heavy smoking. The cancers comprised a clear cell carcinoma of the right kidney,...

Prophylactic Intravesical Chemotherapy: Its Unexpected Course (1982)

AKAZA, HIDEYUKI, KOISO, KENKICHI, NIIJIMA, TADAO, OSHI, MASAYA, NAKAMURA, SHOHEI, ASANO, MICHIO

Generally, prophylactic intravesical chemotherapy is effective in decreasing the rate of recurrence of bladder cancer. However, we have experienced four cases presenting invasive development of...