71 results on '"Yukio Homma"'
Search Results
2. Deep Learning Models for Cystoscopic Recognition of Hunner Lesion in Interstitial Cystitis
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Takuya Iwaki, Yoshiyuki Akiyama, Hirokazu Nosato, Manami Kinjo, Aya Niimi, Satoru Taguchi, Yuta Yamada, Yusuke Sato, Taketo Kawai, Daisuke Yamada, Hidenori Sakanashi, Haruki Kume, Yukio Homma, and Hiroshi Fukuhara
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Urology - Published
- 2023
3. RQ-00434739, a novel TRPM8 antagonist, inhibits prostaglandin E2-induced hyperactivity of the primary bladder afferent nerves in rats
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Hiroyuki Ohshiro, Haruki Kume, Naoki Aizawa, Yukio Homma, Shuzo Watanabe, and Yasuhiko Igawa
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Male ,0301 basic medicine ,medicine.medical_treatment ,Urinary Bladder ,TRPM Cation Channels ,Pharmacology ,030226 pharmacology & pharmacy ,Dinoprostone ,General Biochemistry, Genetics and Molecular Biology ,Rats, Sprague-Dawley ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Oxytocics ,TRPM8 ,Animals ,Medicine ,Neurons, Afferent ,General Pharmacology, Toxicology and Pharmaceutics ,Prostaglandin E2 ,Saline ,Cells, Cultured ,Afferent Pathways ,medicine.diagnostic_test ,business.industry ,Urinary Bladder Diseases ,Antagonist ,Cystometry ,General Medicine ,medicine.disease ,Rats ,030104 developmental biology ,chemistry ,business ,Menthol ,Urinary bladder disease ,Body Temperature Regulation ,medicine.drug ,Prostaglandin E - Abstract
Aims To examine the effects of RQ-00434739, a novel selective TRPM8 antagonist, on deep body temperature (DBT) and normal bladder sensory function and overactivity and its associated facilitation of mechanosensitive primary bladder single-unit afferent activities (SAAs) induced by intravesical l -menthol or prostaglandin E2 (PGE2) instillation in rats. Main methods The effect of RQ-00434739 on DBT was evaluated using intravenous administration of RQ-00434739 (1 mg/kg) or its vehicle under urethane anaesthesia. Cystometry (CMG) was performed on conscious and freely moving rats. SAAs were measured from the left L6 dorsal root under urethane anaesthesia, and the fibers were grouped as Aδ- or C-fiber based on their conduction velocity. For both CMG and SAA measurements, after baseline recording with saline instillation, further recording was performed with intravesical l -menthol (6 mM) or PGE2 (60 μM) instillation after pretreatment with intravenous RQ-00434739 (1 mg/kg) or its vehicle. Key findings RQ-00434739 did not significantly affect DBT. In CMG measurements, RQ-00434739 administration increased mean voided volume. Both l -menthol and PGE2 instillation decreased mean voided volume following vehicle pretreatment, whereas such effects were not observed following RQ-00434739 pretreatment. In SAA measurements, either l -menthol or PGE2 instillations increased SAAs of C-fibers, but not SAAs of Aδ-fibers, in the presence of vehicle. RQ-00434739 pretreatment significantly inhibited the l -menthol- and PGE2-induced activation of C-fiber SAAs. Significance The present results demonstrate that blockade of TRPM8 channels can inhibit the pathological activation of mechanosensitive C-fibers and suggest that RQ-00434739 may be a promising therapeutic drug candidate for bladder hypersensitive disorders without affecting DBT.
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- 2019
4. RQ-00434739, a novel TRPM8 antagonist, inhibits prostaglandin-E2-induced hyperactivity of the primary bladder afferent nerves in rats
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Naoki Aizawa, Yasuhiko Igawa, Yukio Homma, S. Watanabe, and Hiroyuki Ohshiro
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Afferent nerves ,business.industry ,Urology ,Antagonist ,TRPM8 ,medicine ,Pharmacology ,Prostaglandin E2 ,business ,medicine.drug - Published
- 2018
5. Integration of Recurrent Somatic Mutations with Clinical Outcomes: A Pooled Analysis of 1049 Patients with Clear Cell Renal Cell Carcinoma
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Yusuke Sato, Darren R. Feldman, Jonathan A. Coleman, Paul Russo, Robert J. Motzer, Masashi Fukayama, Haruki Kume, Martin H. Voss, Daniel M. Tennenbaum, Brandon J. Manley, Nicole Benfante, Maria F. Becerra, Teppei Morikawa, Emily C. Zabor, James J. Hsieh, Maria E. Arcila, Seishi Ogawa, A. Ari Hakimi, Victor E. Reuter, Almedina Redzematovic, Jozefina Casuscelli, and Yukio Homma
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Adult ,Male ,0301 basic medicine ,Oncology ,medicine.medical_specialty ,Urology ,Gene mutation ,Bioinformatics ,Logistic regression ,medicine.disease_cause ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Renal cell carcinoma ,Internal medicine ,Biomarkers, Tumor ,medicine ,Humans ,Prospective Studies ,Prospective cohort study ,Carcinoma, Renal Cell ,Aged ,Neoplasm Staging ,Aged, 80 and over ,Mutation ,BAP1 ,business.industry ,Tumor Suppressor Proteins ,Confounding ,Histone-Lysine N-Methyltransferase ,Sequence Analysis, DNA ,Middle Aged ,Prognosis ,medicine.disease ,Kidney Neoplasms ,Clear cell renal cell carcinoma ,030104 developmental biology ,030220 oncology & carcinogenesis ,Female ,Neoplasm Recurrence, Local ,business ,Ubiquitin Thiolesterase - Abstract
Background Analyses of associations between clinicopathologic outcomes and recurrent somatic mutations in clear cell renal cell carcinoma (ccRCC) have been limited to individual cohorts. Objective To define clinicopathologic associations between specific mutations and ccRCC disease characteristics. Design, setting, and participants DNA sequencing data were pooled from three collaborative genomic cohorts ( n =754) and our institutional database ( n =295). All patients had clinical data and identification of somatic mutations from their primary tumors. Outcome measurements and statistical analysis Analysis of gene mutations for associations with maximal tumor size (linear regression) and pathologic stage (logistic regression). Cancer-specific survival (CSS) and recurrence-free survival (RFS) were calculated using competing risks methods. Analyses were adjusted for cohort site, and results were adjusted for multiple testing ( q value). Relevant genes were used in multivariable models that included confounding variables and the validated Mayo Clinic Stage, Size, Grade, and Necrosis (SSIGN) score. Results and limitations Association with tumor size was found for mutations in BAP1 ( q =0.013). No mutations were found to be associated with stage after adjusted analysis. Mutations in BAP1 ( q =0.004) and TP53 ( q =0.001) were associated with decreased CSS in a multivariable model; only TP53 ( q =0.005) remained significant when SSIGN score was included. SETD2 mutations ( q =0.047) were associated with decreased RFS in multivariable models, including models with SSIGN score. Conclusions In >1000 patients with ccRCC, pooled analysis and multivariable modeling demonstrated that three mutated genes have statistically significant associations with poor clinical outcomes. This included the more commonly mutated BAP1 and SETD2 and the less frequently mutated TP53 . After adjustment for clinical confounders, mutations of TP53 and SETD2 were associated with decreased CSS and RFS, respectively. Patient summary Using rigorous statistical methods, this study affirmed that certain mutations in clear cell renal cell carcinoma may portend inferior survival and an increased risk of recurrence.
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- 2017
6. A rare case of de novo large cell neuroendocrine carcinoma of the prostate with long-term survival after cystoprostatectomy and androgen deprivation
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Yukio Homma, Haruki Kume, Yukiko Kishida, Yorito Nose, Jimpei Miyakawa, Koichi Tamura, Motofumi Suzuki, Shoujiroh Morinaga, Kaori Endo, and Toshikazu Sato
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medicine.drug_class ,business.industry ,Urology ,medicine.medical_treatment ,medicine.disease ,Androgen ,Small-cell carcinoma ,digestive system diseases ,Cystoprostatectomy ,Androgen deprivation therapy ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Prostate ,030220 oncology & carcinogenesis ,medicine ,Cancer research ,Adenocarcinoma ,030211 gastroenterology & hepatology ,Large-cell neuroendocrine carcinoma ,Radical surgery ,business - Abstract
More than 95% of prostate cancers are adenocarcinoma, and neuroendocrine carcinomas (NECs) are very rare, representing less than 1% of prostate cancers. Among NECs of the prostate including small cell carcinoma (SmCC), carcinoids, and large cell neuroendocrine carcinoma (LCNEC), LCNEC is extremely rare. Only 15 cases have been reported to date and their prognoses were very poor. Here, we report a patient with de novo LCNEC of the prostate that was successfully treated with radical surgery and adjuvant androgen deprivation therapy (ADT).
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- 2018
7. Urinary bladder carcinoma with divergent differentiation featuring small cell carcinoma, sarcomatoid carcinoma, and liposarcomatous component
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Masashi Fukayama, Mariko Yasui, Yukio Homma, Jimpei Miyakawa, Tohru Nakagawa, Daichi Maeda, and Teppei Morikawa
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Male ,0301 basic medicine ,medicine.medical_specialty ,Pathology ,medicine.medical_treatment ,Urology ,Liposarcoma ,Cystectomy ,Small-cell carcinoma ,Pathology and Forensic Medicine ,03 medical and health sciences ,Fatal Outcome ,0302 clinical medicine ,Carcinosarcoma ,medicine ,Humans ,Carcinoma, Small Cell ,Sarcomatoid carcinoma ,Bladder cancer ,Urinary bladder ,medicine.diagnostic_test ,business.industry ,Cell Biology ,Cystoscopy ,Middle Aged ,medicine.disease ,030104 developmental biology ,medicine.anatomical_structure ,Urinary Bladder Neoplasms ,030220 oncology & carcinogenesis ,business ,Chemoradiotherapy - Abstract
Both small cell carcinoma and sarcomatoid carcinoma of the urinary bladder are highly aggressive tumors, and a concurrence of these tumors is extremely rare. We report a case of urinary bladder cancer with small cell carcinoma as a predominant component, accompanied by sarcomatoid carcinoma and conventional urothelial carcinoma (UC). Although the small cell carcinoma component had resolved on receiving chemoradiotherapy, rapid growth of the residual tumor led to a fatal outcome. A 47-year-old man presented with occasional bladder irritation and had a 2-year history of asymptomatic hematuria. Cystoscopy revealed a huge mass in the urinary bladder, and transurethral resection was performed. Microscopically, small cell carcinoma was detected as the major tumor component. Spindle-shaped sarcomatoid cells were also observed that were intermingled with small cell carcinoma and conventional UC. In addition, a sheet-like growth of the lipoblast-like neoplastic cells was observed focally. Initially, by providing chemoradiotherapy, we achieved a marked tumor regression; however, the tumor rapidly regrew after the completion of chemoradiotherapy, and the patient underwent radical cystectomy. Only conventional UC and sarcomatoid carcinoma were identified in the cystectomy specimen. The patient died of the disease 4 months after cystectomy. Urinary bladder cancer may include a combination of multiple aggressive histologies as in the present case. Because the variation in the tumor components may affect the efficacy of therapy, a correct diagnosis of every tumor component is necessary.
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- 2016
8. Abhydrolase domain containing 2, an androgen target gene, promotes prostate cancer cell proliferation and migration
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Daisuke Obinata, Kuniko Horie-Inoue, Yukio Homma, Yuta Yamada, Kyoko Fujiwara, Jinpei Kumagai, Ken-ichi Takayama, Akiko Ito, Taro Murata, Satoshi Inoue, Tomohiko Urano, Daisaku Ashikari, Shogo Takada, Satoru Takahashi, Kazuhiro Ikeda, and Tetsuya Fujimura
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Male ,0301 basic medicine ,Cancer Research ,Small interfering RNA ,Hydrolases ,Apoptosis ,Docetaxel ,urologic and male genital diseases ,Prostate cancer ,0302 clinical medicine ,Cell Movement ,Tumor Cells, Cultured ,RNA, Small Interfering ,Aged, 80 and over ,Gene knockdown ,Chemistry ,Middle Aged ,Immunohistochemistry ,Oncology ,Receptors, Androgen ,Gene Knockdown Techniques ,030220 oncology & carcinogenesis ,Androgens ,Taxoids ,medicine.drug ,medicine.medical_specialty ,Bicalutamide ,Transplantation, Heterologous ,Mice, Nude ,Antineoplastic Agents ,Androgen receptor binding ,03 medical and health sciences ,Internal medicine ,LNCaP ,medicine ,Animals ,Humans ,Aged ,Cell Proliferation ,Prostatic Neoplasms ,Cancer ,medicine.disease ,Survival Analysis ,Androgen receptor ,030104 developmental biology ,Endocrinology ,Drug Resistance, Neoplasm ,Cancer research ,Neoplasm Grading ,Neoplasm Transplantation - Abstract
Background The androgen receptor (AR) plays a key role in the development of prostate cancer. AR signalling mediates the expression of androgen-responsive genes, which are involved in prostate cancer development and progression. Our previous chromatin immunoprecipitation study showed that the region of abhydrolase domain containing 2 (ABHD2) includes a functional androgen receptor binding site. In this study, we demonstrated that ABHD2 is a novel androgen-responsive gene that is overexpressed in human prostate cancer tissues. Methods The expression levels of ABHD2 in androgen-sensitive cells were evaluated by quantitative reverse transcription polymerase chain reaction and western-blot analyses. LNCaP and VCaP cells with ABHD2 overexpression or short interfering RNA (siRNA) knockdown were used for functional analyses. ABHD2 expression was examined in clinical samples of prostate cancer by immunohistochemistry. Results We showed that ABHD2 expression is increased by androgen in LNCaP and VCaP cells. This androgen-induced ABHD2 expression was diminished by bicalutamide. While stable expression of ABHD2 affected the enhancement of LNCaP cell proliferation and migration, siRNA-mediated ABHD2 knockdown suppressed cell proliferation and migration. In addition, the siRNA treatment significantly repressed the tumour growth derived from LNCaP cells in athymic mice. Immunohistochemical analysis of ABHD2 expression in tumour specimens showed a positive correlation of ABHD2 immunoreactivity with high Gleason score and pathological N stage. Moreover, patients with high immunoreactivity of ABHD2 showed low cancer-specific survival rates and a resistance to docetaxel-based chemotherapy. Conclusion ABHD2 is a novel androgen-regulated gene that can promote prostate cancer growth and resistance to chemotherapy, and is a novel target for diagnosis and treatment of prostate cancer.
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- 2016
9. A case of Birt-Hogg-Dubé syndrome implying reduced or no wild-type folliculin without mutated protein is pathogenic
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Yu Miyama, Haruki Kume, Yukio Homma, Kuniaki Seyama, Tetsuo Ushiku, Etsuko Kobayashi, Yoshimitsu Komemushi, Yukiko Namba, Yoshihito Hoshika, Yutaka Enomoto, and Keiko Mitani
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Adult ,Male ,business.industry ,Tumor Suppressor Proteins ,Chromophobe Renal Cell Carcinoma ,General Medicine ,Chromophobe cell ,medicine.disease ,medicine.disease_cause ,Birt–Hogg–Dubé syndrome ,Kidney Neoplasms ,Birt-Hogg-Dube Syndrome ,Cancer syndrome ,Germline mutation ,Proto-Oncogene Proteins ,Genetics ,medicine ,Cancer research ,Humans ,Folliculin ,Haploinsufficiency ,Carcinogenesis ,business ,Carcinoma, Renal Cell ,Genetics (clinical) - Abstract
Birt-Hogg-Dubé syndrome (BHDS) is an autosomal dominant cancer syndrome caused by a germline mutation of the folliculin (FLCN) gene. Previous studies have suggested that truncated mutant folliculin proteins generated by disease causing FLCN mutations may retain partial functionality and contribute to disease phenotype. A 38-year-old Russian man presented with a left renal tumor. He underwent a left radical nephrectomy and histological examination confirmed the diagnosis of chromophobe renal cell carcinoma. He had papulae on his face suggestive of fibrofolliculomas, and pulmonary cysts on his computed tomography of the chest. He had a family history of skin manifestations. Genetic analysis identified a genomic deletion including the putative promoter region of FLCN exon 1 in the germline, and the second hit on the remaining wild-type FLCN in the renal carcinoma cells, which is expected to cause the complete lack of folliculin protein. Immunohistochemistry with the use of anti-folliculin antibody showed no antibody-binding on chromophobe renal carcinoma cells. These findings suggest that the decreased FLCN expression itself without producing mutated folliculin proteins can be at risk for developing clinical manifestations of BHDS: fibrofolliculomas, lung cysts, and tumorigenesis in the kidneys. This sheds light on the pathogenesis of BHDS and the role of FLCN as a tumor suppressor gene.
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- 2020
10. Urinary incontinence with no obvious reason at 1 month after robot-assisted radical prostatectomy strongly predicts delayed continence recovery: The longitudinal survey of questionnaires
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T. Nakagawa, J. Kamei, Yukio Homma, Toru Sugihara, Yoshitsugu Yamada, Naoki Aizawa, Hiroshi Fukuhara, Yasuhiko Igawa, A. Niimi, Masaki Yoshida, Y. Shinoda, Haruki Kume, Yusuke Sato, Tetsuya Fujimura, and A. Matsunaga
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medicine.medical_specialty ,Prostatectomy ,business.industry ,Urology ,medicine.medical_treatment ,medicine ,Urinary incontinence ,medicine.symptom ,business - Published
- 2019
11. TCEB1-mutated renal cell carcinoma: a distinct genomic and morphological subtype
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Haruki Kume, Jonathan A. Coleman, James J. Hsieh, Satish K. Tickoo, John P. Sfakianos, Anders Jacobsen, Yusuke Sato, Seishi Ogawa, Paul Russo, Teppei Morikawa, Chris Sander, Yukio Homma, Alexander Sankin, Roy Mano, A. Ari Hakimi, Victor E. Reuter, Judy Sarungbam, Ying-Bei Chen, and Masashi Fukayama
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Adult ,Male ,Pathology ,medicine.medical_specialty ,DNA Mutational Analysis ,Elongin ,Cell ,Biology ,Article ,Pathology and Forensic Medicine ,PBRM1 ,TCEB1 ,Renal cell carcinoma ,VHL ,Biomarkers, Tumor ,Carcinoma ,medicine ,Humans ,Carcinoma, Renal Cell ,Aged ,Renal Cell Carcinoma ,Genomics ,Middle Aged ,medicine.disease ,Clear cell papillary renal cell carcinoma ,Immunohistochemistry ,Kidney Neoplasms ,3. Good health ,Clear cell renal cell carcinoma ,medicine.anatomical_structure ,Cytoplasm ,Mutation ,Female ,Clear cell ,Transcription Factors - Abstract
Integrated sequencing analysis identified a group of tumors among clear cell renal cell carcinomas characterized by hotspot mutations in TCEB1 (a gene that contributes to the VHL complex to ubiquitinate hypoxia-inducible factor). We analyzed 11 tumors from two distinct cohorts with TCEB1 mutations along with an expanded cohort to assess whether these should be considered an entity distinct from clear cell renal cell carcinoma and clear cell papillary renal cell carcinoma. All tumors were characterized by hotspot mutations in TCEB1 Y79C/S/F/N or A100P. Morphological and immunohistochemical characteristics of the tumors were assessed by two experienced genitourinary pathologists. Clinical and pathological variables, copy number alterations, mutations, and expression signatures were compared with a cohort of TCEB1 wild-type tumors. All TCEB1-mutated tumors were VHL and PBRM1 wild type and contained distinct copy number profiles including loss of heterozygosity of chromosome 8, the location of TCEB1 (8q21.11). All tumors lacked the clear cell renal cell carcinoma signature 3p loss and contained distinct gene expression signatures. None of the clear cell papillary tumors harbored TCEB1 mutations. Pathologically, all TCEB1-mutated tumors shared characteristic features including thick fibromuscular bands transecting the tumor, pure clear cell cytology frequently with cells showing voluminous cytoplasm, and clear cell renal cell carcinoma-like acinar areas associated with infolding tubular and focally papillary architecture. The presence of voluminous cytoplasm, absence of luminal polarization of tumor nuclei, and lack of extensive cup-like distribution of carbonic anhydrase-IX expression distinguish it from clear cell papillary carcinoma. None of the patients developed metastases at last follow-up (median 48 months). In sum, TCEB1-mutated renal cell carcinoma is a distinct entity with recurrent hotspot mutations, specific copy number alterations, pathway activation, and characteristic morphological features. Further clinical follow-up is needed to determine whether these tumors are more indolent compared with the conventional clear cell renal cell carcinoma.
- Published
- 2015
12. Stimulatory effect of insulin on renal proximal tubule sodium transport is preserved in type 2 diabetes with nephropathy
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Motonobu Nakamura, Nobuhiko Satoh, Masashi Suzuki, Haruki Kume, Shoko Horita, George Seki, and Yukio Homma
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Male ,medicine.medical_specialty ,medicine.medical_treatment ,Biophysics ,Type 2 diabetes ,Biochemistry ,Nephropathy ,Kidney Tubules, Proximal ,Diabetic nephropathy ,Internal medicine ,Diabetes mellitus ,Insulin receptor substrate ,medicine ,Hyperinsulinemia ,Animals ,Humans ,Insulin ,Diabetic Nephropathies ,Rats, Long-Evans ,Molecular Biology ,Cells, Cultured ,Dose-Response Relationship, Drug ,business.industry ,Sodium-Bicarbonate Symporters ,Sodium ,Cell Biology ,medicine.disease ,IRS2 ,Rats ,Endocrinology ,Diabetes Mellitus, Type 2 ,business ,Ion Channel Gating - Abstract
Our previous study indicates that hyperinsulinemia in metabolic syndrome in the absence of nephropathy may promote hypertension by stimulating renal proximal tubule (PT) sodium transport via insulin receptor substrate (IRS) 2/phosphoinositide 3-kinase pathway. In the present study we showed that the stimulatory effect of insulin on the Na(+)-HCO3(-) cotransporter NBCe1 in isolated PTs was completely preserved in type 2 diabetic rats with overt nephropathy. Furthermore, the IRS2 expression and insulin-induced Akt phosphorylation in kidney cortex were preserved in these rats. By contrast, the IRS1 expression in kidney cortex was markedly reduced, which might be relevant to enhanced renal gluconeogenesis consistently reported in diabetes. The stimulatory effect of insulin on NBCe1 was preserved also in a human type 2 diabetic patient with advanced nephropathy. These results revealed that insulin can stimulate PT sodium transport even in type 2 diabetes with overt nephropathy. In addition to hypoglycemia, insulin-induced renal sodium retention might also play a role in increased cardiovascular risk associated with intensive glycemic control in type 2 diabetic patients with nephropathy.
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- 2015
13. Psychometric Validation of the English Version of the Overactive Bladder Symptom Score
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Tetsuya Fujimura and Yukio Homma
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Adult ,Male ,medicine.medical_specialty ,Psychometrics ,Intraclass correlation ,Urology ,urologic and male genital diseases ,Young Adult ,Cronbach's alpha ,Surveys and Questionnaires ,medicine ,Humans ,Aged ,Language ,Aged, 80 and over ,Urinary bladder ,Urinary Bladder, Overactive ,business.industry ,Reproducibility of Results ,Middle Aged ,medicine.disease ,The Overactive Bladder Questionnaire ,medicine.anatomical_structure ,Overactive bladder ,Physical therapy ,Female ,International Prostate Symptom Score ,business ,Kappa - Abstract
Objective To assess the psychometric properties of the English version of the overactive bladder symptom score (OABSS) among overactive bladder (OAB) patients in the United States. Methods The reliability and validity of the OABSS were examined using data collected online from OAB patients residing in the United States. Results A total of 199 patients responded to the first questionnaire administration. Of those, 149 completed the second questionnaire. The results of the reliability assessment indicated that the intraclass correlation coefficient of the total OABSS score was 0.74 (weighted kappa coefficients of individual item score, 0.55-0.84) and that the Cronbach α coefficient was 0.56. In the analysis of the validity, the OABSS total score was correlated with all the external criteria (symptom bother of the overactive bladder questionnaire, patient perception of bladder condition, and International Prostate Symptom Score) to a moderate to strong degree. The results of known-group validity showed that the OABSS score tended to increase as the symptom severity increased (trend test; P Conclusion The present study demonstrated the reliability and validity of the English version of the OABSS. It is expected that the English version of the OABSS will be useful in clinical studies and medical practice among English-speaking OAB patients.
- Published
- 2014
14. Mortality due to obstructive pyelonephritis with urolithiasis depends on case volume: Analysis of 719 cases from Japanese national series
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Yukio Homma, Toru Sugihara, J. Kamei, Kiyohide Fushimi, Hideo Yasunaga, Haruki Kume, and Hiroki Matsui
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Series (stratigraphy) ,Pediatrics ,medicine.medical_specialty ,Case volume ,business.industry ,Urology ,Obstructive pyelonephritis ,Medicine ,business - Published
- 2018
15. Xanthogranulomatous Cystitis Treated by Transurethral Resection
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Yukio Homma, Akira Nomiya, Katsuyuki Iida, Yutaka Enomoto, Koji Tsumura, Sachi Yamamoto, Kanae Yoshida, and Kenji Yoda
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Surgical resection ,medicine.medical_specialty ,business.industry ,Urology ,medicine.medical_treatment ,Transurethral resection ,Inflammation and Infection ,Xanthogranulomatous cystitis ,Chronic inflammatory disease ,lcsh:Diseases of the genitourinary system. Urology ,lcsh:RC870-923 ,Resection ,Surgery ,Cystectomy ,XC, xanthogranulomatous cystitis ,Curative treatment ,Etiology ,Medicine ,Minimally invasive ,business - Abstract
Xanthogranulomatous cystitis (XC) is a rare benign chronic inflammatory disease of unknown etiology. Curative treatment of XC requires surgical resection, and most of reported cases were treated by partial cystectomy. Here we describe a case with XC that was treated using transurethral resection.
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- 2015
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16. Imidafenacin, an Antimuscarinic Agent, Improves Nocturia and Reduces Nocturnal Urine Volume
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Yukio Homma, Osamu Yamaguchi, and Osamu Yokoyama
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Male ,medicine.medical_specialty ,Time Factors ,Urology ,media_common.quotation_subject ,Urination ,Muscarinic Antagonists ,Urine ,Nocturnal ,urologic and male genital diseases ,Placebo ,Imidafenacin ,law.invention ,Double-Blind Method ,Randomized controlled trial ,law ,medicine ,Humans ,Nocturia ,Aged ,media_common ,Polyuria ,business.industry ,Imidazoles ,Middle Aged ,medicine.disease ,female genital diseases and pregnancy complications ,Surgery ,Overactive bladder ,Female ,medicine.symptom ,business ,medicine.drug - Abstract
Objective To evaluate the efficacy of imidafenacin for nocturia and nocturnal polyuria in patients with overactive bladder. Materials and Methods A stratified analysis was conducted on data from a phase III randomized, double-blind, controlled trial of imidafenacin performed at 158 centers in Japan. The subjects received imidafenacin (0.1 mg) twice daily (group I) or placebo twice daily (group P). The 24-hour urine volume, daytime and nighttime voiding frequency, and volume voided/micturition were evaluated from 3-day voiding diaries recorded every 4 weeks during the 12-week study period. Longitudinal data analysis was performed, with all values expressed as the least squares mean ± standard error. Results A total of 46 patients (mean age 66.54 ± 9.38 years, 9 men and 37 women) with nocturia and nocturnal polyuria (>33% of urine production at night) were enrolled. Group I (n = 35) and group P (n = 11) showed no baseline differences in the daily voided volume, concomitant diseases, age, or body weight. However, the average daily number of micturitions differed (11.22 ± 2.17 vs 14.45 ± 2.85). Therefore, longitudinal data analysis was performed for each micturition pattern. After 12 weeks of treatment, nighttime micturition was significantly less frequent in group I than in group P (P = .0292), and the nocturnal percentage of 24-hour production was significantly smaller (P = .0053). The interval to the first nighttime void was significantly longer in group I than in group P, but no difference was found in the first nighttime voided volume. Conclusion The novel antimuscarinic agent, imidafenacin, decreases the number of urinations and reduces nocturnal urine production, thereby improving both nocturia and nocturnal polyuria.
- Published
- 2013
17. Construction Methodology for the Non-Invasive Ultrasound Theragnostic System (4th report) -Bed-Type Servoing System for Body Targets
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Takakazu Funamoto, Mamoru Mitsuishi, Hiroyuki Tsukihara, Norihiro Koizumi, Kiyoshi Yoshinaka, Yutaro Itagaki, Naohiko Sugita, Akira Nomiya, Yoichiro Matsumoto, and Yukio Homma
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Engineering ,business.industry ,Non-Invasive Ultrasound Theragnostic System ,medicine.medical_treatment ,Non invasive ,Ultrasound ,Medical Support System ,Focused ultrasound ,High-intensity focused ultrasound ,medicine ,General Earth and Planetary Sciences ,Computer vision ,Artificial intelligence ,High Intensity Focused Ultrasound ,business ,General Environmental Science ,Biomedical engineering - Abstract
We have developed a non-invasive ultrasound theragnostic system (NIUTS) that tracks and follows the movement of an affected area (kidney stone/tumor, in this study) while irradiating it with high-intensity focused ultrasound (HIFU). In this paper, we propose a method to simplify extracting, tracking and following, monitoring the affected area by using a bed-type non-invasive ultrasound theragnostic system.
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- 2013
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18. Genomic landscape of upper urinary tract urothelial carcinoma
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Yuichi Shiraishi, Masashi Sanada, Hiroaki Nishimatsu, Haruki Kume, Yusuke Sato, Yusuke Shiozawa, Tetsuichi Yoshizato, Seishi Ogawa, Yukio Homma, Yasuhisa Fujii, K. Yoshida, Hideki Makishima, T. Okaneya, T. Nakagawa, Satoru Miyano, and H. Suzuki
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medicine.medical_specialty ,business.industry ,Urology ,medicine ,business ,Urothelial carcinoma ,Upper urinary tract - Published
- 2017
19. Aging risk of impaired ADL (activities of daily living) after nephrectomy and nephroureterectomy for malignancy among elderly including the aged over 80: Assessment based on 39649 cases
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A. Ishikawa, Hiroshi Fukuhara, Y. Kinoshita, Tetsuya Fujimura, T. Minami, Yukio Homma, Kiyohide Fushimi, Toru Sugihara, Hideo Yasunaga, H. Matui, and Yoshitsugu Yamada
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medicine.medical_specialty ,Activities of daily living ,business.industry ,Urology ,Internal medicine ,medicine.medical_treatment ,medicine ,Malignancy ,medicine.disease ,business ,Nephrectomy ,Surgery - Published
- 2017
20. Pathophysiological roles of TRPA1 channel in lipopolysaccharide (LPS)-induced bladder inflammatory nociception and hypersensitivity in mice
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Yukio Homma, S. Kaneko, Yasuhiko Igawa, Naoki Aizawa, T. Nakagawa, and J. Kamei
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chemistry.chemical_compound ,Nociception ,Lipopolysaccharide ,chemistry ,business.industry ,Urology ,Immunology ,Medicine ,TRPA1 Channel ,business ,Pathophysiology - Published
- 2017
21. Development of an overactive bladder assessment tool: A potential alternative to the bladder diary
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Christopher P. Evans, Christopher R. Chapple, Nathan Johnson, Yukio Homma, Emad Siddiqui, Zoe Kopp, Zalmai Hakimi, C. Kelleher, and Christopher K. Payne
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medicine.medical_specialty ,Overactive bladder ,business.industry ,Urology ,Medicine ,Bladder diary ,business ,medicine.disease - Published
- 2017
22. KPR-2579, a novel TRPM8 antagonist, inhibits hyperactivity of the primary bladder afferent nerves induced by acetic acid in rats
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Osamu Nakanishi, Naoki Aizawa, Yoshikazu Fujimori, Yukio Homma, Yasuhiko Igawa, J. Kobayashi, and Hideaki Hirasawa
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Afferent nerves ,Acetic acid ,chemistry.chemical_compound ,Primary (chemistry) ,chemistry ,business.industry ,Urology ,TRPM8 ,Antagonist ,Medicine ,Pharmacology ,business - Published
- 2017
23. Association of rs6983561 Polymorphism at 8q24 With Prostate Cancer Mortality in a Japanese Population
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Hiroaki Nishimatsu, Tadaichi Kitamura, Tetsuya Fujimura, Yukio Homma, Akira Ishikawa, Haruki Kume, Motofumi Suzuki, Motoji Sawabe, Makoto Suzuki, Takayuki Kurosaki, Miao Liu, Moriaki Kato, Yutaka Enomoto, Tomio Arai, Hiroshi Fukuhara, and Yutaka Kasuya
- Subjects
Male ,Oncology ,medicine.medical_specialty ,Pathology ,Genotype ,Urology ,Single-nucleotide polymorphism ,Kaplan-Meier Estimate ,Adenocarcinoma ,Polymorphism, Single Nucleotide ,Prostate cancer ,Japan ,Internal medicine ,medicine ,Humans ,Genotyping ,Genetic Association Studies ,Aged ,Genetic association ,Aged, 80 and over ,Proportional hazards model ,business.industry ,Hazard ratio ,Prostatic Neoplasms ,Middle Aged ,medicine.disease ,Multivariate Analysis ,business ,Chromosomes, Human, Pair 8 - Abstract
We conducted present study to address whether the rs6983561 polymorphism, an established genetic marker for prostate cancer susceptibility, was a prognostic indicator. We genotyped 518 Japanese patients with prostate cancer and analysed their survival retrospectively. As a result, patients with the CA/CC genotype of rs6983561 survived significantly longer than those with the AA genotype (P = .033).Genome-wide association studies have revealed several genetic variants at 8q24 that are associated with prostate cancer susceptibility. Rs6983561 (A/C) is a single-nucleotide polymorphism located at 8q24 that has been established as a genetic risk marker for prostate cancer susceptibility. The present study investigated the association between the rs6983561 polymorphism and prostate cancer mortality in a Japanese population.The study examined 518 native Japanese male patients with sporadic prostate cancer. Germline DNA samples were obtained from all participants and genotyping of rs6983561 was performed using a TaqMan assay. Observation periods were from the date of diagnosis of prostate cancer to May 21, 2010. The Cox proportional hazards model was used to estimate the cause-specific survival (CSS) and the overall survival (OS).Patients with the CA/CC genotype of rs6983561 survived significantly longer than those with the AA genotype. In a multivariate model, the hazard ratios (HRs) and 95% confidence intervals (CIs) of the CSS and the OS for the rs6983561 polymorphism were 2.438 (1.262 - 5.046, P = .007) and 1.957 (1.142 - 3.485, P = .014), respectively. When the analysis was restricted to subjects with metastatic disease, the HRs of the CSS and the OS were 3.353 (95% CI, 1.689 - 7.446; P = 3.76 x 10(-4)) and 3.361 (95% CI, 1.741 - 7.136; P = 1.70 x 10(-4)), respectively.In the Japanese population examined in this study, the rs6983561 polymorphism at 8q24 was significantly associated with prostate cancer mortality, especially among patients with metastatic disease.
- Published
- 2011
24. Assessment of Overactive Bladder Symptoms: Comparison of 3-Day Bladder Diary and the Overactive Bladder Symptoms Score
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Yukio Homma, Narihito Seki, Masayuki Takeda, Hidehiro Kakizaki, Tomonori Yamanishi, Osamu Yamaguchi, Osamu Yokoyama, Osamu Nishizawa, and Masaki Yoshida
- Subjects
Male ,medicine.medical_specialty ,Time Factors ,Urology ,Urinary system ,Symptoms score ,Medical Records ,Cohen's kappa ,Surveys and Questionnaires ,Internal medicine ,medicine ,Humans ,Prospective Studies ,Prospective cohort study ,Aged ,Solifenacin ,Urinary bladder ,Urinary Bladder, Overactive ,business.industry ,medicine.disease ,medicine.anatomical_structure ,Overactive bladder ,Female ,Bladder diary ,business ,medicine.drug - Abstract
Objectives To compare the Overactive Bladder Symptom Score (OABSS) and a bladder diary as a tool for assessing symptoms of overactive bladder (OAB). Methods Treatment-naive OAB patients received an antimuscarinic agent, solifenacin. At baseline and 12 weeks after treatment, patients completed a 3-day bladder diary and the OABSS. Relationships between the 2 methods were evaluated by comparison of changes after treatment, agreement between variables and correlation between changes. Results In total, 79 patients (42 male and 37 female, mean age 71.1 years) were included in the analysis. Statistically significant improvements were noted for all the OABSS and the corresponding diary variables. The effect size (ES) was largest for the OABSS urgency score (2.00), followed by the OABSS total score (1.54), and then by the diary urgency score (0.92). All of the ESs for the OABSS, except daytime frequency, were larger than those of the corresponding diary variables. The standard response means followed a similar pattern to the ESs. A fairly good agreement between OABSS items and the corresponding diary variables was found at baseline and 12 weeks (kappa coefficient, 0.33-0.80). High correlations (Spearman's rho, ≥ 0.5) between changes in OABSS items and the corresponding diary variables were found for urgency incontinence and night-time frequency. Conclusions The OABSS is highly sensitive to treatment-related changes of OAB symptoms. Because of its simplicity and dependability, the OABSS can be an alternative to a bladder diary for symptom and efficacy assessment in daily clinical practice.
- Published
- 2011
25. Integrated molecular analysis of upper urinary tract urothelial carcinoma
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Hiroaki Nishimatsu, Tetsuichi Yoshizato, T. Nakagawa, Haruki Kume, Yusuke Sato, Hideki Makishima, Masashi Sanada, Yusuke Shiozawa, Satoru Miyano, T. Okaneya, Yukio Homma, Yuichi Shiraishi, Seishi Ogawa, Yasuhisa Fujii, H. Suzuki, and K. Yoshida
- Subjects
medicine.medical_specialty ,business.industry ,Urology ,medicine ,business ,Urothelial carcinoma ,Molecular analysis ,Upper urinary tract - Published
- 2018
26. Transcriptional control region rearrangements associated with the evolution of JC polyomavirus
- Author
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Ayako Shibuya, Yukio Homma, Yoshiaki Yogo, Tadaichi Kitamura, and Shan Zhong
- Subjects
Genetics ,Gene Expression Regulation, Viral ,Gene Rearrangement ,Phylogenetic tree ,Transcription, Genetic ,Evolution ,viruses ,T-cell receptor ,virus diseases ,Rearrangement ,Genome, Viral ,Biology ,Genome ,Virology ,JC Virus ,Transcriptional control region ,nervous system diseases ,Evolution, Molecular ,Tumor Virus Infections ,nervous system ,DNA, Viral ,Transcriptional regulation ,JC polyomavirus - Abstract
JC polyomavirus (JCV) isolates worldwide are classified into three super-lineages (A, B and C), with A and B further split into several lineages and sub-lineages. The transcriptional control region (TCR) of the JCV genome generally has the archetypal configuration, but rearranged TCRs have occasionally been detected in isolates from immunocompetent individuals. To investigate the phylogenetic significance of these rearrangements, we analyzed 298 TCR sequences all derived from complete JCV genomes directly cloned from the urine of non-immunocompromised individuals. While sporadic rearrangements were found in many lineages and sub-lineages, common rearrangements were identified in all, or essentially all, isolates belonging to particular lineages or sub-lineages. Interestingly, several common rearrangements were also detected as sporadic rearrangements in other lineages or sub-lineages. This observation suggests that during the course of JCV evolution, JCV strains with sporadic rearrangements became predominant over archetypal TCRs in some JCV lineages or sub-lineages.
- Published
- 2008
- Full Text
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27. 327. Oncolytic Virus Therapy Using Recombinant HSV-1 for Nonseminoma Germ Cell Tumors
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Yasushi Ino, Satoru Taguchi, Shigenori Kakutani, Yuta Takeshima, Yukio Homma, Tomoki Todo, and Hiroshi Fukuhara
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Cisplatin ,Pharmacology ,Cancer ,Seminoma ,Biology ,medicine.disease ,Virology ,Oncolytic virus ,Prostate cancer ,Drug Discovery ,Cancer research ,medicine ,Genetics ,Oncolytic Virus Therapy ,Molecular Medicine ,Germ cell tumors ,Survival rate ,Molecular Biology ,medicine.drug - Abstract
Oncolytic herpes simplex viruses type 1 (HSV-1) have been shown promising for treating a variety of tumor. G47Δ is a third-generation oncolytic HSV-1 that has triple mutations in the gamma34.5, alpha47 and ICP6 genes, and the first recombinant HSV-1 tried clinically in Japan. Clinical trials using G47Δ are currently ongoing in patients with glioblastoma, olfactory neuroblastoma or castration resistant prostate cancer. Preclinical studies have shown that G47Δ is also effective in many other types of cancer including breast cancer, schwannoma, renal carcinoma, and urothelial carcinoma. The purpose of this study was to investigate whether oncolytic HSV-1 can also be applied for treating testicular cancer.Testicular cancer is relatively rare, accounting for approximately 1% of male neoplasms and comprising morphologically diverse group of tumors, 90-95% of which are germ cell tumors (GCTs). GCTs are broadly classified as seminoma and non-seminoma (NSGCT). With the increase in early diagnosis and the development of cisplatin-based chemotherapy, a long-term survival can be expected for most GCT patients even with the initial presence of metastases. However, a group of NSGCT patients show resistance to chemotherapy and the five-year survival rate of such group is less than 50%, so clearly a new therapeutic approach is necessary for those patients.In this study, two recombinant HSV-1 were used. T-01 and T-mfIL12 are oncolytic HSV-1 with an empty cassette or the CMV promoter-driven murine interleukin 12 gene inserted into the backbone of G47Δ. Human NSGCT cell lines NTERA-2, Tera-1 and ITO-II, and a mouse NSGCT cell line F9 were used for in vitro evaluation. NTERA-2 and F9 were susceptible to T-01 at an MOI of 0.1: The percentages of surviving cells were less than11% at day 3. Cytopathic activities of T-mfIL12 were comparable to T-01. Athymic mice bearing established subcutaneous NTERA-2 tumors and immunocompetent mice bearing established subcutaneous F9 tumors were used for in vivo evaluation. When inoculated intraneoplastically, T-01 (4 × 10^4, 2 × 10^5 or 1 × 10^6 pfu) caused a significant inhibition of tumor growth compared with mock even at the lowest dose in the NTERA-2 model. In the F9 model, T-mfIL12 (4 × 10^4 pfu) caused a significant inhibition of tumor growth compared with T-01. Moreover, the combination of T-01 (4 × 10^4 pfu) with cisplatin (0.05mg per mouse injected intraperitoneally) was more efficacious than T-01 alone or cisplatin alone in the NTERA-2 model.These data suggest that oncolytic virus therapy using recombinant HSV-1 might be a useful strategy for treating NSGCT.
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- 2015
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28. Effects of intracavernous administration of adrenomedullin on erectile function in rats
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Takumi Takeuchi, Ryozo Nagai, Daisuke Nagata, Hiroaki Nishimatsu, Tadaichi Kitamura, Etsu Suzuki, Kazuki Kawabe, Hiroshi Hayakawa, Shigeo Horie, Nobutaka Ohta, Shigeru Minowada, Yukio Homma, Yasunobu Hirata, and Hiroshi Satonaka
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Male ,medicine.medical_specialty ,Mean arterial pressure ,Phosphodiesterase Inhibitors ,Physiology ,Intracavernous injection ,Vasodilation ,Arginine ,Nitric Oxide ,Biochemistry ,Nitric oxide ,Adrenomedullin ,Cellular and Molecular Neuroscience ,chemistry.chemical_compound ,Endocrinology ,Erectile Dysfunction ,Piperidines ,Internal medicine ,Animals ,Medicine ,Enzyme Inhibitors ,Rats, Wistar ,Phosphodiesterase inhibitor ,Cyclic GMP ,integumentary system ,business.industry ,Penile Erection ,musculoskeletal, neural, and ocular physiology ,Area under the curve ,medicine.disease ,humanities ,Rats ,nervous system diseases ,Disease Models, Animal ,NG-Nitroarginine Methyl Ester ,Erectile dysfunction ,chemistry ,Anesthesia ,Quinazolines ,Nitric Oxide Synthase ,Peptides ,business - Abstract
We have reported that adrenomedullin (AM)-induced vasodilation is at least in part nitric oxide (NO)-cGMP-dependent in the rat. Although it is well known that NO is much involved in the erectile function, it is controversial as to whether AM influences the erectile function. Thus, we examined the effects of AM on intracavernous pressure (ICP) during penile erection. The left carotid artery of rats was cannulated to monitor of mean arterial pressure (MAP). Bipolar electrodes were positioned on the cavernous nerve. The right cavernous body was cannulated with a needle connected to a pressure transducer to monitor ICP. Electrical stimulation (ES) increased ICP in a voltage-dependent manner. Elevation of ICP continued during ES. The intracavernous injection of 0.5 nmol AM significantly potentiated ES-induced increases in both maximal developed ICP/MAP and area under the curve (ICP trace; AUC). Since AM slightly lowered MAP, ICP was normalized by MAP. i.v. administration of N ω -nitro-L-arginine, a NO synthase inhibitor, markedly decreased AM/ES-induced ICP elevation. However, in the presence of E-4021, a cGMP-specific phosphodiesterase inhibitor, AM further increased both ICP/MAP and AUC. These results suggest that a NO-cGMP pathway is involved in the regulation of AM-induced rat cavernous vasorelaxation.
- Published
- 2001
29. Noninvasive detection and prediction of bladder cancer by fluorescence in situ hybridization analysis of exfoliated urothelial cells in voided urine
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Yukio Homma, Yoshio Hosaka, Yukiko Tanaka, Shuji Kameyama, S Ishiwata, Tadaichi Kitamura, and Satoru Takahashi
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Adult ,Male ,Pathology ,medicine.medical_specialty ,Urology ,Urine ,urologic and male genital diseases ,Sensitivity and Specificity ,Reference Values ,Cytology ,Carcinoma ,Humans ,Medicine ,In Situ Hybridization, Fluorescence ,Aged ,Neoplasm Staging ,Aged, 80 and over ,Bladder cancer ,Urinary bladder ,medicine.diagnostic_test ,business.industry ,Fish analysis ,Cystoscopy ,Middle Aged ,medicine.disease ,female genital diseases and pregnancy complications ,medicine.anatomical_structure ,Urinary Bladder Neoplasms ,Female ,Neoplasm Recurrence, Local ,business ,Follow-Up Studies ,Fluorescence in situ hybridization - Abstract
To investigate the clinical utility of fluorescence in situ hybridization (FISH) of voided urine in the detection of bladder cancer and the prediction of its recurrence.FISH with centromere-specific probes for chromosomes 9 and 17 was performed to evaluate the chromosomal alterations of exfoliated urothelial cells in voided urine obtained from 44 patients with bladder cancer and 20 controls. The analysis was also performed in 17 patients with bladder cancer after complete transurethral resection to prospectively determine whether FISH can predict tumor recurrence.The sensitivity to detect bladder cancer by FISH analysis (85%) was significantly higher than that by urine cytologic examination (32%) and by the bladder tumor antigen test (64%) (P0.0001 and P = 0.026, respectively). The specificity of FISH, cytologic analysis, and the bladder tumor antigen test was 95%, 100%, and 80%, respectively. Among the 17 patients tested after transurethral resection, 7 of 13 FISH-positive patients developed tumor recurrence within the 27-month follow-up period; none of 4 FISH-negative patients developed recurrence during the same period. The recurrence rate in patients with the loss of chromosome 17 was 100%, significantly higher than the 23% for patients without this alteration (P = 0.015).These findings suggest that FISH analysis of exfoliated urothelial cells in voided urine can efficiently detect bladder cancer and predict its recurrence.
- Published
- 2001
30. Electromyographic study of the striated urethral sphincter in type 3 stress incontinence: evidence of myogenic-dominant damages
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Tadauchi Kitamura, Kazuki Kawabe, Yukio Homma, Satoru Takahashi, Tetsuyuki Fujishiro, and Yoshio Hosaka
- Subjects
Stress incontinence ,medicine.medical_specialty ,Urinary Incontinence, Stress ,Urology ,Patient characteristics ,Electromyography ,Voluntary contraction ,Muscular Diseases ,Urethra ,Female patient ,medicine ,Humans ,Muscle, Skeletal ,Aged ,medicine.diagnostic_test ,business.industry ,Urethral sphincter ,Middle Aged ,Leak point pressure ,medicine.disease ,medicine.anatomical_structure ,Sphincter ,Female ,business - Abstract
Objectives. To determine the electromyographic features of the striated urethral sphincter in patients with type 3 stress incontinence (SI) due to intrinsic sphincteric deficiency (ISD). Methods. We performed electromyography (EMG) of the striated urethral sphincter muscle and urodynamic studies in a total of 51 women, 41 female patients with type 3 SI and 10 women with normal urinary control (NUC). The results were analyzed in both groups, and the correlation of EMG findings with the patient characteristics and urodynamic parameters was evaluated. Results. Motor unit potentials (MUP) of SI patients showed significantly shorter duration (P = 0.0014), lower amplitude (P = 0.0008), and larger number of phases (P = 0.0022) compared with those in the NUC group. Thirty (73%) of the SI patients showed an obvious low amplitude (less than 350 μV)/short duration (less than 4.5 milliseconds)/polyphasic pattern and early recruitment of interference activity with low amplitude at voluntary contraction of the striated sphincter, both indicating existence of myogenic damages. These patients showing myogenic damages had significantly lower Valsalva leak point pressure (P = 0.002) and more leakage in the pad-weigh test (P = 0.010) compared with the SI patients without myogenic damage findings. Conclusions. These results suggested that myogenic-dominant damages of the striated urethral sphincter may contribute to the etiology of ISD in most patients with type 3 SI.
- Published
- 2000
31. Reproducibility of Cystometry in Overactive Detrusor
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Tadaichi Kitamura, Yasushi Kondo, Satoru Takahashi, Kazuki Kawabe, and Yukio Homma
- Subjects
Male ,Detrusor muscle ,medicine.medical_specialty ,Incontinencia urinaria ,Urology ,Urinary Bladder ,Urinary incontinence ,Sodium Chloride ,urologic and male genital diseases ,Placebo ,Double blind study ,Double-Blind Method ,Humans ,Medicine ,Urinary Bladder, Neurogenic ,Overactive detrusor ,Reproducibility ,medicine.diagnostic_test ,urogenital system ,business.industry ,Reproducibility of Results ,Cystometry ,Middle Aged ,female genital diseases and pregnancy complications ,Urodynamics ,medicine.anatomical_structure ,Female ,medicine.symptom ,business - Abstract
To examine the reproducibility of cystometry in the overactive detrusor.The study sample involved 30 patients of the placebo arm in double-blind clinical trials for an overactive detrusor. They had demonstrated detrusor overactivity and underwent the second cystometry after 2-4 weeks. Nonparametric tests for paired data were used to examine the reproducibility of four variables: volume at first desire to void, volume at first involuntary contraction, cystometric capacity, and the maximum pressure of involuntary contraction. Percent change and within-subject standard deviation were calculated to assess intraindividual variability.The second test results showed a significant and systematic change for the better. Volume variables increased by 10-13% (p0.01), involuntary contraction was not elicited in 3 cases (10%), and the maximum contraction pressure decreased by 18% in the remaining cases. Intraindividual variability was not small. Seventeen patients (57%) demonstratedor = 25% change in one or more variables, and the 95% confidence interval of cystometric capacity, for example, was calculated as (x -57, x +57), where x is a test result. No specific patients' demographics were found related to variability.Repeat cystometry in the overactive detrusor is not highly reproducible and may be subject to a systematic effect for the 'better'. Whether this is due to the placebo effect or the learning effect could not be determined.
- Published
- 2000
32. Contents Vol. 38, 2000
- Author
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Kazuki Kawabe, Alexandre R. Zlotta, J. Köllermann, J. Steffens, B. Kosharskyy, Ugur Mungan, Frieder Bauss, Denis Chautard, Çetin Harmankaya, Yutaka Ono, Thomas Ebert, Andrew J. G. Simpson, Murat Sade, K.E. Giercksky, Akihiko Okuyama, A.K. Nigam, R. Hiebl, Claude Schulman, O. Naňka, B. Helpap, André T. Guay, G. Dipaola, Shiro Takahara, E.W. Hauck, A. Stenzl, Satoru Takahashi, B. Schönberger, M. Grim, M. Ludwig, Peter J. Goebell, Manfred Wiesel, Murat Dayanc, I. Schroeder-Printzen, U. Otite, U. Kaulfuss, Yasunori Harada, G. Moutzouris, Norio Nonomura, G. Lüdecke, D. Brkovic, Murat Sevinç, C. Arens, Özgür Tan, Véronique Verriele, Claudia M. Carvalho, Yukio Homma, Philippe Colls, Ch. Theodorou, Riyadh F. Talic, W. Weidner, Ziya Kirkali, Markus J. Seibel, A. Katsoulis, W. Månsson, Kazuo Nishimura, Francesco Saverio Camoglio, Gerd Staehler, P. Röttger, Natsuki Takaha, Ch. Katsifotis, S.D. Fosså, Gérard Bertrand, Elaine Darini, S. Loening, A Daver, D. Floratos, K.D. Jacobsen, Jesús B. Perez, Masahiro Nozawa, Tadaichi Kitamura, H. Müller, B.M. Altinkilic, Joachim Dörsam, P. Stournaras, M.W. Köllermann, Yves Fradet, Bernd J. Schmitz-Dräger, Lüfti Tahmaz, Francesco P. Selvaggi, K.-Horst Bichler, Gerhard Forster, Walter Ludwig Strohmaier, Tatsunari Fukui, U. Oehler, Christian Kissling, Luca Giacomello, Ernesto Velásquez, Michele Spalletta, Carlos Dzik, Sven Lahme, Johannes Schmidt, Frans M.J. Debruyne, Kutsal Yorukoglu, S.M. Pecher, S. Bianchi, Wim P.J. Witjes, Katia R. M. Leite, Luciano Nesralhah, Bernardo Garicochea, L. Jarolím, Robert A. Newton, Miguel Srougi, Vincent Bocquillon, Jerilynn P. Jacobson, M. Janský, U.E. Studer, D.F. Badenoch, Alberto Ottolenghi, M. Babjuk, C. Nord, Mete Kilciler, Jean-Yves Soret, T. Hanuš, Ricardo P. Moura, M. Tichý, R. Mills, Luiz H. Camara-Lopes, F.H. Comhaire, U. Feek, T. Balducci, and Yasushi Kondo
- Subjects
medicine.medical_specialty ,business.industry ,Urology ,General surgery ,medicine ,business - Published
- 2000
33. A Multicenter Placebo-Controlled, Double-Blind Trial of Urapidil, an α-Blocker, on Neurogenic Bladder Dysfunction
- Author
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Yukio Homma, Kazuki Kawabe, Tomonori Yamanishi, Kosaku Yasuda, and Takashi Morita
- Subjects
Adult ,Male ,Urology ,medicine.medical_treatment ,Urapidil ,Placebo ,Piperazines ,law.invention ,Double-Blind Method ,Randomized controlled trial ,law ,medicine ,Humans ,Urinary Bladder, Neurogenic ,Adrenergic alpha-Antagonists ,Neurogenic bladder dysfunction ,Aged ,Aged, 80 and over ,Chemotherapy ,Urinary bladder ,business.industry ,Middle Aged ,medicine.disease ,Clinical trial ,Urodynamics ,Treatment Outcome ,medicine.anatomical_structure ,Anesthesia ,Female ,Alpha blocker ,business ,Follow-Up Studies - Abstract
To assess the efficacy of urapidil, an alpha-blocker, on neurogenic bladder dysfunction in a placebo-controlled, double-blind trial.149 patients were randomly assigned to receive a placebo or 60 mg/day of urapidil for 4 weeks. The evaluation of efficacy included changes in urinary symptom scores and the results of a pressure/flow study.There were significant intergroup differences with regard to straining and the sum of urinary symptom scores, with the urapidil group showing marked improvements (p = 0.016 and p = 0.011, respectively). In the urapidil group, the average and maximum flow rates were unchanged, but the residual urine volume decreased significantly (p0.001) as compared with the baseline value. The pressure at maximum flow and the minimum urethral resistance decreased significantly (p = 0.040 and p = 0.040, respectively) in the urapidil group, and there was a significant (p = 0.005) intergroup difference with regard to pressure at maximum flow. There was also a significant (p0.001) inter-group difference with regard to the overall therapeutic effect. Side effects were noted in 2 patients treated with urapidil and 6 in the placebo group.Urapidil is effective for the treatment of voiding dysfunction in patients with neurogenic bladder.
- Published
- 1999
34. 53 Bladder irrigation with aluminum solution and transurethral coagulation would be preferable treatment option for grade 4 hemorrhage radiation cystitis: Multicenter series
- Author
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Masaaki Tachibana, Hiroki Matsui, Tatsuo Gondo, Yoshio Ohno, Yukio Homma, Y. Horiguchi, Hideo Yasunaga, Kiyohide Fushimi, Toru Sugihara, Yoshihiro Nakagami, Kazunori Namiki, Jun Nakashima, and Makoto Ohori
- Subjects
Radiation cystitis ,medicine.medical_specialty ,business.industry ,Urology ,medicine ,Coagulation (water treatment) ,Treatment options ,business ,Bladder Irrigation ,Surgery - Published
- 2016
35. 419 Toll like receptor 7 is overexpressed in the bladder mucosa of Hunner type interstitial cystitis and its activation in the mouse bladder induces cystitis and pain
- Author
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K.-E. Andersson, H. Ito, Koji Ichihara, Yukio Homma, J. Kamei, Naoya Masumori, R. Sugiyama, Yasuhiko Igawa, Naoki Aizawa, and Y. Akiyama
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Toll-like receptor ,Pathology ,medicine.medical_specialty ,business.industry ,Urology ,Bladder Mucosa ,Medicine ,Interstitial cystitis ,Mouse Bladder ,business ,medicine.disease - Published
- 2016
36. 338 Impairment in activities of daily living after radical cystectomy among elderly aged over 80. Assessment based on 6778 cases
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Kazunori Namiki, Jun Nakashima, Yukio Homma, Y. Horiguchi, Hiroki Matsui, Masaaki Tachibana, Yoshio Ohno, Yosuke Hirasawa, Makoto Ohori, Tatsuo Gondo, Toru Sugihara, Yoshihiro Nakagami, Hideo Yasunaga, and Kiyohide Fushimi
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Gerontology ,Cystectomy ,Activities of daily living ,business.industry ,Urology ,medicine.medical_treatment ,medicine ,business - Published
- 2016
37. 309 Ageing-related bladder dysfunction in mice: A possible animal model of detrusor hyperactivity with impaired contractility
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Yukio Homma, Harumi Hotta, Yasuhiko Igawa, T. Kojima, Y. Akiyama, K.-E. Andersson, M. Ito, Y. Fujita, Naoki Aizawa, H. Ito, and J. Kamei
- Subjects
medicine.medical_specialty ,030219 obstetrics & reproductive medicine ,business.industry ,Urology ,030232 urology & nephrology ,Contractility ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,Animal model ,Ageing ,Internal medicine ,Medicine ,business - Published
- 2016
38. 850 Toremifene plus androgen deprivation therapy (TOPADT) significantly improved biochemical recurrence in bone metastatic prostate cancer: A randomized controlled phase IIA trial
- Author
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Yukio Homma, Ken-ichi Takayama, S. Takahashi, Tetsuya Fujimura, Haruki Kume, M. Suzuki, T. Nakagawa, Satoshi Inoue, Hiroshi Fukuhara, Yoshitsugu Yamada, and Tomohiko Urano
- Subjects
Oncology ,Biochemical recurrence ,medicine.medical_specialty ,business.industry ,Urology ,medicine.disease ,Androgen deprivation therapy ,Prostate cancer ,Internal medicine ,medicine ,PHASE IIA TRIAL ,Toremifene ,business ,medicine.drug - Published
- 2016
39. 154 Preoperative hospital stay would be risks of resistant bacteria emergence after radical cystectomy: Analysis of 11,410 cases
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Toru Sugihara, Yoshihiro Nakagami, Yukio Homma, Kazunori Namiki, Jun Nakashima, Y. Horiguchi, Hiroki Matsui, Tatsuo Gondo, Masaaki Tachibana, Yoshio Ohno, Makoto Ohori, Kiyohide Fushimi, and Hideo Yasunaga
- Subjects
Cystectomy ,medicine.medical_specialty ,Resistant bacteria ,business.industry ,Urology ,General surgery ,medicine.medical_treatment ,Medicine ,business ,Intensive care medicine ,Hospital stay - Published
- 2016
40. WITHDRAWN: Relationships between 8q24 and 17q risk loci and sporadic or latent prostate cancer and the impacts of these loci on the clinicopathologic characteristics of prostate cancer
- Author
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Hiroshi Fukuhara, Akira Ishikawa, Tomio Arai, Motoji Sawabe, Takayuki Kurosaki, Yukio Homma, Hiroaki Nishimatsu, Tadaichi Kitamura, Motofumi Suzuki, Haruki Kume, Yutaka Enomoto, Miao Liu, and Tetsuya Fujimura
- Subjects
Oncology ,medicine.medical_specialty ,Prostate cancer ,business.industry ,Internal medicine ,Biophysics ,Medicine ,Cell Biology ,business ,medicine.disease ,Molecular Biology ,Biochemistry - Abstract
Miao Liu , Motofumi Suzuki *, Takayuki Kurosaki , Haruki Kume , Akira Ishikawa , Yutaka Enomoto , Hiroaki Nishimatsu , Hiroshi Fukuhara , Tetsuya Fujimura , Tomio Arai , Motoji Sawabe , Yukio Homma , Tadaichi Kitamura a,c a Department of Urology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan b Department of Pathology, Tokyo Metropolitan Geriatric Hospital, 35-2 Sakae-cho, Itabashi-ku, Tokyo 1730015, Japan c Department of Urology, Asoka Hospital, 1-18-1 Sumiyoshi, Koutou-ku, Tokyo 135-0002, Japan
- Published
- 2009
41. 250 Long consecutive hospital holidays would be a mortality risk in emergent calculous pyelonephritis: Population-based analysis
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Haruki Kume, Yukio Homma, Hideo Yasunaga, Hiroshi Fukuhara, Hiroki Matsui, M. Tachibana, Kiyohide Fushimi, Toru Sugihara, J. Kamei, and T. Nakagawa
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Pediatrics ,medicine.medical_specialty ,business.industry ,Urology ,medicine ,Calculous pyelonephritis ,Population based ,business - Published
- 2015
42. 278 Androgen receptor positive stromal cells regulate prostate cancer proliferation through noncanonical Wnt signaling
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Naoki Terada, I. Takada, Robert H. Getzenberg, S. Takahashi, and Yukio Homma
- Subjects
Gene knockdown ,Stromal cell ,business.industry ,Urology ,Wnt signaling pathway ,Cancer ,Androgen Receptor Positive ,medicine.disease ,Prostate cancer ,medicine.anatomical_structure ,Prostate ,Cancer cell ,medicine ,Cancer research ,business - Abstract
INTRODUCTION AND OBJECTIVES: The Wnt signaling pathway (canonical and non-canonical) regulates crucial aspects of embryonic development. Previously, we have reported that non-canonical Wnt members promote proliferation of cancer cells by increasing secretion of growth factors and expression of cancer related genes. We have also demonstrated that Wnt5a is predominantly expressed in prostatic stromal cells and plays a key role in stromalepithelial communication and in the development of prostate cancer. The purpose of this study is to reveal the relation between the noncanonical Wnt signaling and AR signaling on prostate. METHODS: Prostate tissue samples were obtained from patients undergoing radical prostatectomy or cystectomy for prostate and bladder cancer respectively. Cells, representing the cancer, stromal from around the cancer, as well as epithelium and stromal from pathologically normal tissues were isolated by laser capture microdissection Stromal cells (WPMY1 and PrSC) were cultured with DHT ligand and protein. The mRNA levels of Wnt5a, AR, and PSA were determined in both sample types. Wnt5a-knockdown in WPMY1 cells (shWnt5a) along with a vector control (shCTL) was performed and effects on growth evaluated by MTT assay. The cells were co-cultured with PC3 cells, and the mRNA expression of AR was evaluated. A DNA fragment upstream of the Wnt5a gene was inserted into pGL4.17 a vector and the luciferase activity representing Wnt5a inductionby DHT was measured. RESULTS: Wnt5a mRNA expression was prediminanly in the stromal cells of the human prostate samples and the expression levels observed were in proportion to PSA mRNA expression levels. DHT increased production of AR as well as PSA and Wnt5a mRNA expression in both WPMY1 and PrSC cells. Wnt5 knockdown decreased the proliferation of WPMY1cells by 50% compared to shCTR. Co-culture of PC3 cells and WPMY1shWnt5a formed fewer and smaller sized colonies than co-culture of PC3 cells and WPMY1shCTR. AR and PSA mRNA expression levels were remarkably lower in WPMY1shWnt5a than in the control. DHT ligand dramatically increased the luciferase activity of Wnt5a promoter in WPMY1 cells. CONCLUSIONS: The AR is expressed not only in prostatic epithelium but also prostatic stromal as measured by their response to DHT. In stromal cells, The studies presented here demonstrated an interplay between AR signaling and Wnt5a that appears to modulate the proliferation of prostate cancer cells providing further support for the importance of Wnt5a in the regulation of prostate cancer.
- Published
- 2015
43. 895 Ageing-associated biological and molecular changes in the rat bladder and dorsal root ganglia – preventive effect of caloric restriction
- Author
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K. Yoshinobu, H. Ito, M. Ito, Y. Akiyama, Naoki Aizawa, K.-E. Andersson, T. Kojima, Koji Ichihara, R. Sugiyama, J. Kamei, Y. Fujita, Yukio Homma, and Yasuhiko Igawa
- Subjects
Dorsum ,Ageing ,business.industry ,Urology ,Physiology ,Medicine ,Caloric theory ,Anatomy ,business ,Rat Bladder - Published
- 2015
44. 67 Peripheral inhibition of fatty acid amide hydrolase depresses activities of single primary bladder mechanosensitive afferents of the rat
- Author
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Yukio Homma, Yasuhiko Igawa, Naoki Aizawa, Petter Hedlund, and Claudius Füllhase
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Primary (chemistry) ,Biochemistry ,Fatty acid amide hydrolase ,business.industry ,Urology ,Medicine ,Mechanosensitive channels ,Anatomy ,business ,Peripheral - Published
- 2013
45. 64 Effects of silodosin, a selective α1A-adrenoceptor antagonist, on the single primary bladder afferent activity of the rat
- Author
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Yukio Homma, Yasuhiko Igawa, and Naoki Aizawa
- Subjects
α1a adrenoceptor ,business.industry ,Urology ,Afferent ,Antagonist ,Medicine ,Pharmacology ,Silodosin ,business ,medicine.drug - Published
- 2013
46. 764 Integrative analysis of clear cell renal cell carcinoma
- Author
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Yuichi Shiraishi, Yasunobu Nagata, Masashi Sanada, Genta Nagae, K. Yoshida, Teppei Shimamura, Seishi Ogawa, A. Sato, Sumio Sugano, Yusuke Okuno, Yukio Homma, Hiroyuki Aburatani, Shigekatsu Maekawa, Haruki Kume, and Yusuke Sato
- Subjects
Clear cell renal cell carcinoma ,business.industry ,Urology ,Cancer research ,Medicine ,business ,medicine.disease - Published
- 2013
47. 207 IMPACT OF HOSPITAL VOLUME AND LASER USE ON IN-HOSPITAL MORTALITY AND MORBIDITY AFTER TRANSURETHRAL SURGERY OF BENIGN PROSTATE HYPERPLASIA; JAPANESE DIAGNOSIS PROCEDURE COMBINATION DATABASE
- Author
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Haruki Kume, Hiromasa Horiguchi, Hiroaki Nishimatsu, Toru Sugihara, Hideo Yasunaga, Shinya Matsuda, and Yukio Homma
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medicine.medical_specialty ,Transurethral surgery ,Hospital volume ,In hospital mortality ,business.industry ,Urology ,General surgery ,medicine ,Hyperplasia ,medicine.disease ,business ,Benign prostate - Published
- 2011
48. 190 Combination therapy with anti-CD137 and anti-PD-L1 antibodies against renal cell carcinoma
- Author
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Hiroaki Nishimatsu, Yukio Homma, Haruki Kume, L. Chen, and T. Azuma
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Combination therapy ,biology ,business.industry ,Renal cell carcinoma ,Urology ,Anti pd 1 ,CD137 ,Cancer research ,biology.protein ,Medicine ,Antibody ,business ,medicine.disease - Published
- 2014
49. 684 Changes in function and expression of transient receptor potential ankyrin 1 (TRPA1) channel in male rats with sub-acute bladder outlet obstruction
- Author
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Naoki Aizawa, H. Ito, R. Sugiyama, Yukio Homma, and Yasuhiko Igawa
- Subjects
chemistry.chemical_classification ,medicine.medical_specialty ,business.industry ,Urology ,Sub acute ,TRPA1 Channel ,Transient receptor potential channel ,Bladder outlet obstruction ,Endocrinology ,chemistry ,Internal medicine ,Male rats ,medicine ,Ankyrin ,business ,Function (biology) - Published
- 2014
50. 682 Age-related functional changes in the mouse bladder and their gender differences
- Author
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Naoki Aizawa, Yoshinobu Kubota, H. Ito, R. Sugiyama, Yukio Homma, Harumi Hotta, and Yasuhiko Igawa
- Subjects
business.industry ,Urology ,Age related ,Physiology ,Medicine ,Mouse Bladder ,business - Published
- 2014
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