JaLCDOI 10.18926/AMO/31847
FullText URL fulltext.pdf
Author Kobuke, Makoto| Saika, Takashi| Nakanishi, Yoshiko| Ebara, Shin| Manabe, Daisuke| Uesugi, Tatsuya| Nose, Hiroyuki| Arata, Ryoji| Tsushima, Tomoyasu| Nasu, Yasutomo| Kumon, Hiromi|
Abstract <p>To determine health-related quality of life (HRQOL) after radical retropubic prostatectomy (RRP) or permanent prostate brachytherapy (BT), third party-conducted QOL surveys were prospectively compared. Between 2004 and 2005, 37 patients underwent RRP and 36 were treated with BT. A QOL survey consisting of the Medical Outcomes Study 36-Item Short Form (SF-36), the University of California, Los Angeles, Prostate Cancer Index (UCLA-PCI) and the International Prostate Symptoms Score (IPSS) was completed prospectively by a research coordinator at baseline, and at 1, 3, 6 and 12 months after treatment. The RRP patients scored well in general QOL except at 1 month after surgery, with their mental health better than at baseline by 6 months after surgery. Disease-specific QOL in RRP patients received a low score at 1 month for both urinary and sexual function, though urinary function rapidly recovered to baseline levels. BT patient QOL was not affected by the therapy except in the IPSS score. However, general and mental health scores in BT patients were inferior to those in RRP patients. This prospective study revealed differences in QOL after RRP and BT. These results will be helpful in making treatment decisions.</p>
Keywords prostate cancer radical prostatectomy QOL brachytherapy
Amo Type Original Article
Published Date 2009-06
Publication Title Acta Medica Okayama
Volume volume63
Issue issue3
Publisher Okayama University Medical School
Start Page 129
End Page 135
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
File Version publisher
Refereed True
PubMed ID 19571899
Web of Science KeyUT 000267388200002
JaLCDOI 10.18926/AMO/30950
FullText URL fulltext.pdf
Author Saika, Takashi| Kobayashi, Yasuyuki| Watanabe, Toyohiko| Manabe, Daisuke| Ebara, Shin| Uehara, Shinya| Nasu, Yasutomo| Kumon, Hiromi|
Abstract <p>To evaluate morbidity in Hybrid Radical Prostatectomy (HRP, hybridized laparoscopic and open retropubic radical prostatectomy). The operative and pathological outcomes obtained in 25 consecutive patients who underwent HRP were reviewed. The median operating time was 220min, median blood loss was 550ml, and no patient required an allogenic blood transfusion. No severe postoperative complications were observed. The surgical margin was positive in 12% of all patients, and in 1 patient with pT2 or less (4.5%). These results indicate that HRP is safe and may be able to combine the benefits of both laparoscopic and open procedures.</p>
Keywords prostate cancer radical prostatectomy hybrid surgery morbidity positive surgical margin
Amo Type Original Article
Published Date 2008-12
Publication Title Acta Medica Okayama
Volume volume62
Issue issue6
Publisher Okayama University Medical School
Start Page 379
End Page 384
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
File Version publisher
Refereed True
Web of Science KeyUT 000262025000004
JaLCDOI 10.18926/AMO/30945
FullText URL fulltext.pdf
Author Kobayashi, Tomoko| Sakaguchi, Masakiyo| Tanimoto, Ryuta| Abarzua, Fernando| Takaishi, Mikiro| Kaku, Haruki| Kataoka, Ken| Saika, Takashi| Nasu, Yasutomo| Miyazaki, Masahiro| Kumon, Hiromi| Huh, Nam-ho|
Abstract <p>We have recently shown that a new therapeutic modality using the REIC/Dkk-3 gene (Ad-REIC) is effective against various human cancers, including those of prostate, testis and breast origins. The aim of the present study was to examine the sensitivity of bladder cancers to Ad-REIC and to clarify the molecular mechanisms that determine sensitivity/resistance. We found that 2 human bladder cancer cell lines, T24 and J82, are resistant to Ad-REIC. In T24 and J82 cells, the ER stress response and activation of JNK were observed in a manner similar to that in the sensitive PC3 cells. Translocation of Bax to mitochondria occurred in PC3 cells but not in T24 and J82 cells. Bcl-2 was remarkably overexpressed in T24 and J82 compared with the expression levels in sensitive cell lines. Treatment of T24 and J82 cells with a Bcl-2 inhibitor sensitized the cells to Ad-REIC-induced apoptosis. The results indicate that some human bladder cancers are resistant to apoptosis induced by overexpression of REIC/Dkk-3, which is at least in part due to up-regulation of Bcl-2. These results provide a basis for possible use of Bcl-2 as a marker of sensitive cancers and to try to sensitize resistant cancers to Ad-REIC by down-regulation of Bcl-2.</p>
Keywords REIC/Dkk-3 bladder cancer apoptosis Bcl-2
Amo Type Original Article
Published Date 2008-12
Publication Title Acta Medica Okayama
Volume volume62
Issue issue6
Publisher Okayama University Medical School
Start Page 393
End Page 401
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
File Version publisher
Refereed True
Web of Science KeyUT 000262025000006
JaLCDOI 10.18926/AMO/30939
FullText URL fulltext.pdf
Author Kobayashi, Yasuyuki| Saika, Takashi| Manabe, Daisuke| Nasu, Yasutomo| Kumon, Hiromi|
Abstract <p>The purpose of this study is to compare the performance of laparoscopic partial nephrectomy (LPN) with and without clamping of the renal artery and to evaluate the impact of clamping on postoperative renal function. A total of 20 patients underwent LPN, 13 without and 7 with clamping of the renal artery. The 2 groups were compared with respect to complications, blood loss, operative time, mean tumor size, and incidence of positive margins. Renal function was evaluated by pre- and postoperative renal scintigraphy using <sup>99m</sup>Technetium-mercaptoacetyltriglycine (<sup>99m</sup>Tc-MAG3). Intraoperative blood loss was significantly higher in the group without clamping than in the group with clamping (p0.04). In the group with clamping, the median warm ischemic time was 35min (range 25-40min). The serum creatinine values and the renal scintigraphy showed no influence on postoperative renal function with or without clamping. In the group without clamping, 2 cases were showed positive surgical margins. The procedure performed with clamping of the renal artery is superior to the procedure performed without clamping as it provides the advantages of controlling hemorrhaging without injury to renal function and prolonging the surgical time and allowing for more accurate resection of renal tumors.</p>
Keywords laparoscopic partial nephrectomy <sup>99m</sup>Tc-MAG3 renal function
Amo Type Original Article
Published Date 2008-08
Publication Title Acta Medica Okayama
Volume volume62
Issue issue4
Publisher Okayama University Medical School
Start Page 269
End Page 273
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
File Version publisher
Refereed True
PubMed ID 18766210
Web of Science KeyUT 000258680900007
JaLCDOI 10.18926/AMO/55205
FullText URL 71_3_227.pdf
Author Sasaki, Katsumi| Wada, Koichiro| Araki, Motoo| Kobayashi, Yasuyuki| Sugimoto, Morito| Ebara, Shin| Watanabe, Toyohiko| Nasu, Yasutomo|
Abstract  We elucidate the fate of cases clinically suspected of carcinoma in situ (Cis) of the upper tract with serial ureteroscopy. Of 143 patients who underwent ureteroscopy for suspected upper tract urothelial carcinoma (UTUC) between January 2008 and February 2016, 12 cases with consistently positive urine cytology and poorly detectable upper-tract malignancies by imaging were reviewed. In these 12 patients, 19 ureteroscopy procedures (25 renal units) were performed. Vesical random biopsy was performed before the 1st ureteroscopy to exclude malignancy of the bladder in all 12 cases. Median follow-up was 42 (13-67) months. Positive biopsy results at the 1st ureteroscopy were obtained in 3 (25%) patients and all were diagnosed wth Cis of the upper tract. Two (17%) of 9 patients who were negative or inconclusive at the 1st ureteroscopy were finally diagnosed as UTUC, but plural ureteroscopy procedures were needed for the diagnoses in both. Carcinoma of the bladder appeared in 5 (42%) patients during follow-up, despite the earlier ruling out of vesical malignancy. Four (33%) of those 5 patients never developed upper-tract urothelial carcinoma during follow-up. Caution is required before undertaking radical surgery for cases clinically suspected of Cis of the upper tract. In our experience, only 42% of such patients developed UTUC; another 33% eventually developed carcinoma of the bladder without UTUC.
Keywords carcinoma in situ carcinoma of the bladder upper tract urothelial carcinoma ureteroscopy urine cytology
Amo Type Original Article
Published Date 2017-06
Publication Title Acta Medica Okayama
Volume volume71
Issue issue3
Publisher Okayama University Medical School
Start Page 227
End Page 232
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 28655942
JaLCDOI 10.18926/AMO/32862
FullText URL 64_1_27.pdf
Author Kobayashi, Yasuyuki| Saika, Takashi| Manabe, Daisuke| Nasu, Yasutomo| Kumon, Hiromi|
Abstract We analyzed the prognostic factors influencing survival after surgeries for upper urinary tract urothelial carcinoma (UUT-UC) with longer follow-up periods than in previous studies. Between January 2000 and December 2004, 386 patients underwent nephroureterectomy for UUT-UC. The data for the 221 patients with UUT-UC were retrospectively reviewed. Nine variables were evaluated for association with the survival outcomes of cause-specific survival. The prognostic significance was tested univariately with the log-rank test. The simultaneous effects of multiple prognostic factors were estimated by multiple regression analysis using the Cox proportional hazards model. The median follow-up was 38.4 months. The 5-year over all survival was 62.3%. Significant prognostic factors for disease-specific survival rate on univariate analysis were pathological stage (p0.0001), tumor grade (p0.0324), and venous invasion (p0.0001). Multivariate analysis revealed that only venous invasion was significant for disease-specific survival rate (p0.0205). Venous invasion was the only independent prognostic factor in pathologically localized UUT-UC.
Keywords nephroureterectomy transitional cell carcinoma upper urinary tract
Amo Type Original Article
Note <a href="http://ousar.lib.okayama-u.ac.jp/amo/vol65/iss2/11">Erratum with Corrected and Republished Article</a>|
Published Date 2010-02
Publication Title Acta Medica Okayama
Volume volume64
Issue issue1
Publisher Okayama University Medical School
Start Page 27
End Page 31
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2010 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 20200581
Web of Science KeyUT 000274868300004
JaLCDOI 10.18926/AMO/47013
FullText URL 65_5_315.pdf
Author Wang, Lei| Kaku, Haruki| Huang, Peng| Xu, Kexin| Yang, Kai| Zhang, Jiheng| Li, Ming| Xie, Liping| Wang, Xiaofeng| Sakai, Akiko| Watanabe, Masami| Nasu, Yasutomo| Shimizu, Kenji| Kumon, Hiromi| Na, Yanqun|
Abstract Deficiencies in the human DNA repair gene WRN are the cause of Werner syndrome, a rare autosomal recessive disorder characterized by premature aging and a predisposition to cancer. This study evaluated the association of WRN Leu1074Phe (rs1801195), a common missense single nucleotide polymorphism in WRN, with prostate cancer susceptibility in Chinese subjects. One hundred and forty-seven prostate cancer patients and 111 male cancer-free control subjects from 3 university hospitals in China were included. Blood samples were obtained from each subject, and the single nucleotide polymorphism WRN Leu1074Phe was genotyped by using a Snapshot assay. The results showed that WRN Leu1074Phe was associated with the risk of prostate cancer in Chinese men and that the TG/GG genotype displayed a decreased prevalence of prostate cancer compared with the TT genotype (OR=0.58, 95%CI:0.35-0.97, p=0.039). Through stratified analysis, more significant associations were revealed for the TG/GG genotype in the subgroup with diagnosis age <_ 72 yr (OR=0.27, 95%CI:0.12-0.61, p=0.002) and in patients with localized diseases (OR=0.36, 95%CI:0.19-0.70, p=0.003). However, no statistically significant difference was found in the subgroup with age >72 yr or in patients with advanced diseases. We concluded that the genetic variant Leu1074Phe in the DNA repair gene WRN might play a role in the risk of prostate cancer in Chinese subjects.
Keywords polymorphism prostatic neoplasms single nucleotide susceptibility WRN
Amo Type Original Article
Published Date 2011-10
Publication Title Acta Medica Okayama
Volume volume65
Issue issue5
Publisher Okayama University Medical School
Start Page 315
End Page 323
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2011 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 22037267
Web of Science KeyUT 000296116400005
JaLCDOI 10.18926/AMO/45274
FullText URL 65_2_143.pdf
Author Kobayashi, Yasuyuki| Saika, Takashi| Manabe, Daisuke| Nasu, Yasutomo| Kumon, Hiromi|
Abstract We analyzed the prognostic factors influencing survival after surgeries for upper urinary tract urothelial carcinoma (UUT-UC) with longer follow-up periods than in previous studies. Between January 2000 and December 2004, 386 patients underwent nephroureterectomy for UUT-UC. The data for the 221 patients with UUT-UC were retrospectively reviewed. Nine variables were evaluated for association with the survival outcomes of cause-specific survival. The prognostic significance was tested univariately with the log-rank test. The simultaneous effects of multiple prognostic factors were estimated by multiple regression analysis using the Cox proportional hazards model. The median follow-up was 38.4 months. The 5-year over all survival was 62.3%. Significant prognostic factors for disease-specific survival rate on univariate analysis were pathological stage (p0.0001), tumor grade (p0.0324), and venous invasion (p0.0001). Multivariate analysis revealed that only venous invasion was significant for disease-specific survival rate (p0.0205). Venous invasion was the only independent prognostic factor in pathologically localized UUT-UC.
Keywords nephroureterectomy transitional cell carcinoma upper urinary tract
Amo Type Corrected and Republished Article
Published Date 2011-04
Publication Title Acta Medica Okayama
Volume volume65
Issue issue2
Publisher Okayama University Medical School
Start Page 143
End Page 149
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2011 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 20200581
Web of Science KeyUT 000289818800011
JaLCDOI 10.18926/AMO/48076
FullText URL 66_1_7.pdf
Author Kawauchi, Keiichiro| Watanabe, Masami| Kaku, Haruki| Huang, Peng| Sasaki, Kasumi| Sakaguchi, Masakiyo| Ochiai, Kazuhiko| Huh, Nam-ho| Nasu, Yasutomo| Kumon, Hiromi|
Abstract The preclinical safety and therapeutic efficacy of adenoviral vectors that express the REIC/Dkk-3 tumor suppressor gene (Ad-REIC) was examined for use in prostate cancer gene therapy. The Ad-human (h) and mouse (m) REIC were previously demonstrated to induce strong anti-cancer effects in vitro and in vivo, and we herein report the results of two in vivo studies. First, intra-tumor Ad-hREIC administration was examined for toxicity and therapeutic effects in a subcutaneous tumor model using the PC3 prostate cancer cell line. Second, intra-prostatic Ad-mREIC administration was tested for toxicity in normal mice. The whole-body and spleen weights, hematological and serum chemistry parameters, and histological evaluation of tissues from throughout the body were analyzed. Both experiments indicated that there was no significant difference in the examined parameters between the Ad-REIC-treated group and the control (PBS- or Ad-LacZ-treated) group. In the in vitro analysis using PC3 cells, a significant apoptotic effect was observed after Ad-hREIC treatment. Confirming this observation, the robust anti-tumor efficacy of Ad-hREIC was demonstrated in the in vivo subcutaneous prostate cancer model. Based on the results of these preclinical experiments, we consider the adenovirus-mediated REIC/Dkk-3 in situ gene therapy to be safe and useful for the clinical treatment of prostate cancer.
Keywords REIC Dickkopf-3 gene therapy prostate cancer preclinical study
Amo Type Original Article
Published Date 2012-02
Publication Title Acta Medica Okayama
Volume volume66
Issue issue1
Publisher Okayama University Medical School
Start Page 7
End Page 16
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2012 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 22358134
Web of Sience KeyUT 000300800700002
JaLCDOI 10.18926/AMO/52144
FullText URL 68_1_47.pdf
Author Ishikawa, Tsutomu| Araki, Motoo| Hirata, Takeshi| Watanabe, Masami| Ebara, Shin| Watanabe, Toyohiko| Nasu, Yasutomo| Kumon, Hiromi|
Abstract We report 3 patients with the rare complication of an indwelling urethral catheter misdirected into the ureter. This is the largest series to date. Patients were referred to us for a variety of reasons following exchange of their chronic indwelling urinary catheters. CT in all cases demonstrated the urinary catheters residing in the left ureter. The ages of the patients were 37, 67 and 81 years old. All patients suffered from neurogenic bladder. Two patients were female, one was male, and 2 of the 3 had a sensory disorder inhibiting their pain response. The catheters were replaced with open-end Foley catheters. Extensive follow-up CT scans were obtained in one case, demonstrating improvement of hydronephrosis and no evidence of ureteral stenosis. Cystoscopy in this patient demonstrated normally positioned and functioning ureteral orifices. Although the placement of an indwelling urethral catheter is a comparatively safe procedure, one must keep in mind that this complication can occur, particularly in female patients with neurogenic bladder. CT without contrast is a noninvasive, definitive diagnostic tool.
Keywords complication indwelling urethral catheter imaging computed tomography ureter
Amo Type Case Report
Published Date 2014-02
Publication Title Acta Medica Okayama
Volume volume68
Issue issue1
Publisher Okayama University Medical School
Start Page 47
End Page 51
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2014 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 24553489
Web of Science KeyUT 000331592800008
JaLCDOI 10.18926/AMO/52142
FullText URL 68_1_35.pdf
Author Araki, Motoo| Jeong, Wooju| Park, Sung Yul| Lee, Young Hoon| Nasu, Yasutomo| Kumon, Hiromi| Hong, Sung Joon| Rha, Koon Ho|
Abstract The purpose of this study was to compare the positive surgical margin (PSM) rates of 2 techniques of robot-assisted radical prostatectomy (RARP) for pT2 (localized) prostate cancer. A retrospective analysis was conducted of 361 RARP cases, performed from May 2005 to September 2008 by a single surgeon (KHR) at our institution (Yonsei University College of Medicine). In the conventional technique, the bladder neck was transected first. In the modified ultradissection, the lateral border of the bladder neck was dissected and then the bladder neck was transected while the detrusor muscle of the bladder was well visualized. Perioperative characteristics and outcomes and PSM rates were analyzed retrospectively for pT2 patients (n=217), focusing on a comparison of those undergoing conventional (n=113) and modified ultradissection (n=104) techniques. There was no difference between the conventional and modified ultradissection group in mean age, BMI, PSA, prostate volume, biopsy Gleason score, and DʼAmico prognostic criteria distributions. The mean operative time was shorter (p<0.001) and the estimated blood loss was less (p<0.01) in the modified ultradissection group. The PSM rate for the bladder neck was significantly reduced by modified ultradissection, from 6.2% to 0% (p<0.05). In conclusion, modified ultradissection reduces the PSM rate for the bladder neck.
Keywords robot-assisted radical prostatectomy prostate cancer surgery surgical margin technique
Amo Type Original Article
Published Date 2014-02
Publication Title Acta Medica Okayama
Volume volume68
Issue issue1
Publisher Okayama University Medical School
Start Page 35
End Page 41
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2014 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 24553487
Web of Science KeyUT 000331592800006
JaLCDOI 10.18926/AMO/54508
FullText URL 70_4_299.pdf
Author Wada, Koichiro| Uehara, Shinya| Ishii, Ayano| Sadahira, Takuya| Yamamoto, Masumi| Mitsuhata, Ritsuko| Takamoto , Atsushi| Araki, Motoo| Kobayashi, Yasuyuki| Watanabe, Masami| Watanabe, Toyohiko| Hotta, Katsuyuki| Nasu, Yasutomo|
Abstract Urinary tract infections (UTIs) are the most common bacterial infections in women, and many patients experience frequent recurrence. The aim of this report is to introduce an on-going prospective phase II clinical trial performed to evaluate the preventive effectiveness of Lactobacillus vaginal suppositories for prevention of recurrent cystitis. Patients enrolled in this study are administered vaginal suppositories containing the GAI 98322 strain of Lactobacillus crispatus every 2 days or 3 times a week for one year. The primary endpoint is recurrence of cystitis and the secondary endpoints are adverse events. Recruitment began in December 2013 and target sample size is 20 participants.
Keywords probiotics lactobacilli Lactobacillus crispatus urinary tract infection vaginal suppository
Amo Type Clinical Study Protocols
Published Date 2016-08
Publication Title Acta Medica Okayama
Volume volume70
Issue issue4
Publisher Okayama University Medical School
Start Page 299
End Page 302
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2016 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 27549677
Web of Science KeyUT 000384748600012
JaLCDOI 10.18926/AMO/54507
FullText URL 70_4_295.pdf
Author Araki, Motoo| Wada, Koichiro| Mitsui, Yosuke| Kubota, Risa| Yoshioka, Takashi| Ariyoshi, Yuichi| Kobayashi, Yasuyuki| Kitagawa, Masashi| Tanabe, Katsuyuki| Sugiyama, Hiroshi| Wada, Jun| Watanabe, Masami| Watanabe, Toyohiko| Hotta, Katsuyuki| Nasu, Yasutomo|
Abstract Although graft survival following renal transplantation (RTx) has improved, outcomes following highrisk RTx are variable. Preexisting antibodies, including donor-specific antibodies (DSA), play an important role in graft dysfunction and survival. We have designed a study to investigate the safety and efficacy of anti-CD20 monoclonal antibodies (rituximab) in high-risk RTx recipients. Major eligibility criteria include: 1) major and minor ABO blood group mismatch, 2) positive DSA. Thirty-five patients will receive 200 mg/body of rituximab. The primary endpoint is the incidence of B cell depletion. This study will clarify whether rituximab is efficacious in improving graft survival in high-risk RTx recipients.
Keywords end-stage renal disease immunosuppression kidney transplantation
Amo Type Clinical Study Protocols
Published Date 2016-08
Publication Title Acta Medica Okayama
Volume volume70
Issue issue4
Publisher Okayama University Medical School
Start Page 295
End Page 297
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2016 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 27549676
Web of Science KeyUT 000384748600011
JaLCDOI 10.18926/AMO/54423
FullText URL 70_3_223.pdf
Author Ebara, Shin| Kobayashi, Yasuyuki| Sasaki, Katsumi| Araki, Motoo| Sugimoto, Morito| Wada, Koichirou| Fujio, Kei| Takamoto, Atsushi| Watanabe, Toyohiko| Yanai, Hiroyuki| Nasu, Yasutomo|
Abstract The present case report describes a case of recurrent and advanced urachal carcinoma including neuroendocrine features with iliac bone metastasis after partial cystectomy and adjuvant chemotherapy consisting of irinotecan and cisplatin in a 32-year-old man. He received gemcitabine/cisplatin/ paclitaxel (GCP) combination chemotherapy, consisting of gemcitabin (1,000mg/m2) on day 1, 8, cisplatin (70mg/m2) on day 1, and paclitaxel (80mg/m2) on day 1 and 8. After three cycles of chemotherapy, PET-CT showed complete regression of the disease. So the patient underwent total cystourethrectomy, and histological examination showed an almost complete pathological response. External beam radiation therapy was also given to the ileac bone metastasis regions. However, PET-CT taken 17 months after the external beam radiation showed multiple lung metastases. He received GCP chemotherapy again, which resulted in a complete response again after three cycles of chemotherapy. This is the first report on GCP chemotherapy used not only as a salvage chemotherapy but also as a rechallenge regimen for metastatic urachal cancer including a neuroendocrine component.
Amo Type Case Report
Published Date 2016-06
Publication Title Acta Medica Okayama
Volume volume70
Issue issue3
Publisher Okayama University Medical School
Start Page 223
End Page 227
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2016 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 27339213
Web of Science KeyUT 000379406100011
JaLCDOI 10.18926/AMO/54414
FullText URL 70_3_159.pdf
Author Yoshioka, Takashi| Otsuki, Hideo| Uehara, Shinya| Shimizu, Toshihiro| Murao, Wataru| Fujio, Koji| Fujio, Kei| Wada, Koichiro| Araki, Motoo| Nasu, Yasutomo|
Abstract Upper urinary tract calculi are common; however, there is no recommended treatment selection for elderly patients. Ureteroscopic holmium laser lithotripsy (URS lithotripsy) is minimally invasive, and it provides a high stone-free rate (SFR) treatment for upper urinary tract calculi. Here, we retrospectively evaluated the surgical outcomes of URS lithotripsy after dividing the 189 cases into 3 groups by patient age: the ʻ<65 groupʼ (<65 years old, n=108), the ʻ65-74 groupʼ (65-74 years old, n=42), and the ʻ 75 groupʼ ( 75 years old, n=39). The patientsʼ characteristics, stone status, and perioperative outcomes were assessed. The 65-74 group and the 75 group had a significantly higher prevalence of hypertension compared to the<65 group. Compared to the<65 group, the 65-74 group had a significantly higher prevalence of hyperlipidemia, and the 75 group had significantly higher the American Society of Anesthesiologists (ASA) scores. Despite these preoperative risk factors, SFR and postoperative pyelonephritis in the 65-74 group and the 75 group were similar to those of the<65 group. In conclusion, URS lithotripsy is the preferred treatment for upper urinary tract calculi, even for elderly patients who have multiple preoperative risk factors.
Keywords upper urinary tract calculi ureteroscopy (URS) holmium laser lithotripsy elderly patients stone-free rate (SFR)
Amo Type Original Article
Published Date 2016-06
Publication Title Acta Medica Okayama
Volume volume70
Issue issue3
Publisher Okayama University Medical School
Start Page 159
End Page 166
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2016 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 27339204
Web of Science KeyUT 000379406100002
JaLCDOI 10.18926/AMO/54989
FullText URL 71_2_187.pdf
Author Takamoto, Atsushi| Araki, Motoo| Wada, Koichiro| Sugimoto, Morito| Kobayashi, Yasuyuki| Sasaki, Katsumi| Watanabe, Toyohiko| Nasu, Yasutomo|
Abstract We report the case of a 58-year-old Japanese man with bilateral synchronous renal cell carcinoma (RCC). The diameters of the right and left tumors were 56 and 69 mm, respectively. Both tumors were endophytic. Cryoablation with prophylactic embolization was performed for the left tumor, and 1 month later, a right open partial nephrectomy was performed. No recurrence was observed during a 16-month follow-up, and the serum creatinine level has been stable. The prognosis of bilateral synchronous RCC is better than that of dialysis patients. The novel approach of combining cryoablation and partial nephrectomy can achieve good cancer control and renal function in bilateral RCC.
Keywords cryoablation multiple renal masses nephron-sparing surgery renal cell carcinoma synchronous multiple primary
Amo Type Case Report
Published Date 2017-04
Publication Title Acta Medica Okayama
Volume volume71
Issue issue2
Publisher Okayama University Medical School
Start Page 187
End Page 190
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 28420902
JaLCDOI 10.18926/AMO/54982
FullText URL 71_2_135.pdf
Author Mori, Akihiro| Watanabe, Masami| Sadahira, Takuya| Kobayashi, Yasuyuki| Ariyoshi, Yuichi| Ueki, Hideo| Wada, Koichiro| Ochiai, Kazuhiko| Li, Shun-Ai| Nasu, Yasutomo|
Abstract The cluster of differentiation 147 (CD147), also known as EMMPRIN, is a key molecule that promotes cancer progression. We previously developed an adenoviral vector encoding a tumor suppressor REIC/Dkk-3 gene (Ad-REIC) for cancer gene therapy. The therapeutic effects are based on suppressing the growth of cancer cells, but, the underlying molecular mechanism has not been fully clarified. To elucidate this mechanism, we investigated the effects of Ad-REIC on the expression of CD147 in LNCaP prostate cancer cells. Western blotting revealed that the expression of CD147 was significantly suppressed by Ad-REIC. Ad-REIC also suppressed the cell growth of LNCaP cells. Since other researchers have demonstrated that phosphorylated mitogen-activated protein kinases (MAPKs) and c-Myc protein positively regulate the expression of CD147, we investigated the correlation between the CD147 level and the activation of MAPK and c-Myc expression. Unexpectedly, no positive correlation was observed between CD147 and its possible regulators, suggesting that another signaling pathway was involved in the downregulation of CD147. This is the first study to show the downregulation of CD147 by Ad-REIC in prostate cancer cells. At least some of the therapeutic effects of Ad-REIC may be due to the downregulation of the cancer-progression factor, CD147.
Keywords prostate cancer REIC/Dkk-3 CD147 cell growth p38 MAP kinase
Amo Type Original Article
Published Date 2017-04
Publication Title Acta Medica Okayama
Volume volume71
Issue issue2
Publisher Okayama University Medical School
Start Page 135
End Page 142
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 28420895
Author Kurahashi, Hiroaki| Watanabe, Masami| Sugimoto, Morito| Ariyoshi, Yuichi| Mahmood, Sabina| Araki, Motoo| Ishii, Kazushi| Nasu, Yasutomo| Nagai, Atsushi| Kumon, Hiromi|
Published Date 2013-12
Publication Title Endocrine Journal
Volume volume60
Issue issue12
Content Type Journal Article
Author Hayashi, Tatsuro| Asano, Hiroaki| Toyooka, Shinichi| Tsukuda, Kazunori| Soh, Junichi| Shien, Tadahiko| Taira, Naruto| Maki, Yuho| Tanaka, Norimitsu| Doihara, Hiroyoshi| Nasu, Yasutomo| Huh, Nam-ho| Miyoshi, Shinichiro|
Published Date 2012-05
Publication Title Journal of Cancer Research and Clinical Oncology
Volume volume138
Issue issue5
Content Type Journal Article
Author Bekku, Kensuke| Saika, Takashi| Kobayashi, Yasuyuki| Kioshimoto, Ryo| Kanbara, Taiki| Nasu, Yasutomo| Kumon, Hiromi|
Published Date 2013-02
Publication Title International Journal of Clinical Oncology
Volume volume18
Issue issue1
Content Type Journal Article