T. Okamoto

C. Ohyama, Yoshimi Tanaka, Tadashi Suzuki, 2019, Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy.

Robot‐assisted radical cystectomy in a patient with muscle‐invasive bladder cancer following radiotherapy for prostate cancer

A. Imai, C. Ohyama, T. Koie, 2019, IJU case reports.

Relationships of low‐grade systemic inflammation and nutritional status with erectile dysfunction severity in men on dialysis

C. Ohyama, K. Yoshikawa, S. Hatakeyama, 2022, Andrology.

Utility of total cell-free DNA levels for surgical damage evaluation in patients with urological surgeries

C. Ohyama, S. Hatakeyama, T. Narita, 2021, Scientific reports.

Surgery without Blood Transfusion for Giant Paraganglioma in a Jehovah's Witness Patient

T. Narita, A. Imai, C. Ohyama, 2014, Case Reports in Oncology.

Impact of Gleason pattern 5 on prognosis for newly diagnosed metastatic hormone‐sensitive prostate cancer with Gleason score ≥8

T. Habuchi, N. Tsuchiya, C. Ohyama, 2022, International journal of urology : official journal of the Japanese Urological Association.

[A case report of spontaneous renal rupture due to arteriosclerosis].

J. Matsuzaka, T. Okamoto, S. Numasato, 1994, Hinyokika kiyo. Acta urologica Japonica.

Core2 O-glycan-expressing prostate cancer cells are resistant to NK cell immunity

S. Tsuboi, T. Funyu, C. Ohyama, 2012, Molecular medicine reports.

Overactive bladder and sleep disturbance have a significant effect on indoor falls: Results from the community health survey in Japan

A. Imai, C. Ohyama, S. Hatakeyama, 2020, Lower urinary tract symptoms.

Butyrylcholinesterase level as an independent prognostic factor for overall survival in patients on maintenance hemodialysis: a single-center retrospective study

C. Ohyama, Yoshimi Tanaka, S. Hatakeyama, 2021, Clinical and Experimental Nephrology.

The impact of microalbuminuria on overactive bladders: Results from a community‐based four‐year longitudinal study in Japan

A. Imai, C. Ohyama, A. Okamoto, 2020, Neurourology and urodynamics.

Low serum butyrylcholinesterase is independently related to low fetuin-A in patients on hemodialysis: a cross-sectional study

C. Ohyama, Yoshimi Tanaka, Tadashi Suzuki, 2018, International Urology and Nephrology.

Butyrylcholinesterase level as an independent factor of erythropoiesis-stimulating agent resistance in patients on maintenance hemodialysis: a single-center cross-sectional study

C. Ohyama, Yoshimi Tanaka, Tadashi Suzuki, 2018, Clinical and Experimental Nephrology.

[Adrenal pheochromocytoma with multiple neurofibromatosis on the trunk].

C. Ohyama, T. Koie, S. Hatakeyama, 2012, Hinyokika kiyo. Acta urologica Japonica.

Blood Group Antigen-Targeting Peptide Suppresses Anti-Blood Group Antibody Binding to Antigen in Renal Glomerular Capillaries After ABO-Incompatible Blood Reperfusion

C. Ohyama, T. Koie, M. Fukuda, 2013, Transplantation.

Efficacy of SMART Stent Placement for Salvage Angioplasty in Hemodialysis Patients with Recurrent Vascular Access Stenosis

A. Imai, T. Funyu, C. Ohyama, 2011, International journal of nephrology.

The association between serum serotonin levels and overactive bladder: results from a community-based cross-sectional study in Japan

C. Ohyama, S. Nakaji, S. Hatakeyama, 2020, World Journal of Urology.

Utility of the Age Discrepancy between Frailty-Based Biological Age and Expected Life Age in Patients with Urological Cancers

C. Ohyama, Toshikazu Tanaka, S. Hatakeyama, 2022, Cancers.

Clinical implication of a quantitative frailty assessment tool for prognosis in patients with urological cancers

C. Ohyama, S. Nakaji, T. Matsumoto, 2018, Oncotarget.

Humoral response after SARS-CoV-2 mRNA vaccination in patients with prostate cancer using steroids

C. Ohyama, S. Hatakeyama, T. Yoneyama, 2022, Urologic Oncology: Seminars and Original Investigations.

Association of tumor burden with the eligibility of upfront intensification therapy in metastatic castration‐sensitive prostate cancer: A multicenter retrospective study

T. Habuchi, N. Tsuchiya, C. Ohyama, 2020, International journal of urology : official journal of the Japanese Urological Association.

Proton pump inhibitor as an independent factor of progression of abdominal aortic calcification in patients on maintenance hemodialysis

C. Ohyama, Yoshimi Tanaka, Tadashi Suzuki, 2018, PloS one.

Title Core 2 O-glycan-expressing prostate cancer cells are resistant to NK cell immunity resistant to NK cell immunity

S. Tsuboi, T. Funyu, C. Ohyama, 2022 .

The association between gut microbiome and erectile dysfunction: a community-based cross-sectional study in Japan

A. Imai, C. Ohyama, S. Nakaji, 2020, International Urology and Nephrology.

Impact of nutritional status on the prognosis of patients with metastatic hormone-naïve prostate cancer: a multicenter retrospective cohort study in Japan

T. Habuchi, N. Tsuchiya, C. Ohyama, 2018, World Journal of Urology.

Pre-dialysis serum creatinine as an independent predictor of responsiveness to zinc supplementation among patients on hemodialysis

C. Ohyama, Yoshimi Tanaka, Tadashi Suzuki, 2020, Clinical and Experimental Nephrology.

Seroprevalence of SARS-CoV-2 spike IgG antibodies after the second BNT162b2 mRNA vaccine in Japanese kidney transplant recipients

H. Tomita, C. Ohyama, S. Narumi, 2022, Scientific Reports.

Seroprevalence of SARS-CoV-2 IgG Antibodies After the Second BNT162b2 mRNA Vaccine in Japanese Kidney Transplant Recipients

H. Tomita, C. Ohyama, S. Narumi, 2021 .

Blood Group Antigen Targeting Peptide Suppresses Thrombotic Microangiopathy in Renal Glomerular Capillaries after ABO-Incompatible Blood Reperfusion [Innovation in Transplant and Regenerative Medicine. The 13th Meeting of Hirosaki International Forum of Medical Science. Communication Center of Hiros

C. Ohyama, T. Koie, M. Fukuda, 2013 .

[A case of emphysematous pyelonephritis with septic shock recovered by transurethral drainage of pelvis].

T. Okamoto, K. Nomura, T. Kubo, 1989, Hinyokika kiyo. Acta urologica Japonica.

Comparison of Three Alternatives for Living Donor Nephrectomy [Innovation in Transplant and Regenerative Medicine. The 13th Meeting of Hirosaki International Forum of Medical Science. Communication Center of Hirosaki University School of Medicine. September 9, 2011, Hirosaki, Japan]

C. Ohyama, T. Koie, S. Hatakeyama, 2013 .

The Relationship Between Gait Function and Erectile Dysfunction: Results from a Community-Based Cross-Sectional Study in Japan.

A. Imai, C. Ohyama, S. Nakaji, 2019, The journal of sexual medicine.

Can Erectile Dysfunction Severity Predict Major Adverse Cardiovascular Events in Men Undergoing Dialysis? A Prospective Cohort Study

C. Ohyama, K. Yoshikawa, S. Hatakeyama, 2023, The World Journal of Men's Health.

Comparison of neoadjuvant chemohormonal therapy vs. extended pelvic lymph-node dissection in high-risk prostate cancer treated with robot-assisted radical prostatectomy

C. Ohyama, S. Hatakeyama, H. Yamamoto, 2023, Scientific Reports.

Association between the baseline frailty and quality of life in patients with prostate cancer (FRAQ-PC study)

C. Ohyama, S. Hatakeyama, T. Narita, 2020, International Journal of Clinical Oncology.

The effect of frailty on the quality of life and lower urinary symptoms following robot-assisted radical prostatectomy: A longitudinal analysis (FRARP-QL Study).

C. Ohyama, S. Hatakeyama, T. Narita, 2020, Urologic oncology.

Frailty is a predictor of moderate to severe pain after robot‐assisted laparoscopic prostatectomy: A case‐control study (FRAP study)

C. Ohyama, S. Hatakeyama, T. Yoneyama, 2020, BJUI compass.

Comparison of efficacy and medical costs between upfront docetaxel and abiraterone treatments of metastatic hormone-sensitive prostate cancer patients in real-world practice: a multicenter retrospective study

T. Habuchi, C. Ohyama, Toshikazu Tanaka, 2022, World Journal of Urology.

Prognostic significance of the Ki67 index and programmed death-ligand 1 expression after radical cystectomy in patients with muscle-invasive bladder cancer.

C. Ohyama, Toshikazu Tanaka, S. Hatakeyama, 2020, Urologic oncology.

Association between female urinary urgency and aponeurotic ptosis: Results from a community‐based cross‐sectional study in Japan

C. Ohyama, K. Iida, S. Hatakeyama, 2021, Neurourology and urodynamics.

Effects of six-cycle completion and earlier use of radium-223 therapy on prognosis for metastatic castration-resistant prostate cancer: A real-world multicenter retrospective study.

C. Ohyama, Toshikazu Tanaka, Y. Hatayama, 2021, Urologic oncology.

Influence of pretreatment quality of life on prognosis in patients with urothelial carcinoma

A. Imai, C. Ohyama, S. Hatakeyama, 2019, International Journal of Clinical Oncology.

Oncological and functional outcomes of female reproductive organ-sparing radical cystectomy and ileal neobladder construction.

C. Ohyama, Toshikazu Tanaka, S. Hatakeyama, 2022, Urologic oncology.

Prognostic impact of eligibility for adjuvant immunotherapy in locally advanced urothelial cancer

C. Ohyama, Toshikazu Tanaka, S. Hatakeyama, 2021, BJUI compass.

Impact of nephroureterectomy on postoperative renal function in upper tract urothelial carcinoma: A multicenter retrospective study

C. Ohyama, Toshikazu Tanaka, S. Hatakeyama, 2023, International journal of urology : official journal of the Japanese Urological Association.

The impact of eligibility for maintenance immunotherapy on prognosis in patients with unresectable or metastatic urothelial carcinoma

C. Ohyama, Toshikazu Tanaka, A. Okamoto, 2021, BJUI compass.

The effect of number of treatment cycles of platinum-based first-line chemotherapy on maximum radiological response in patients with advanced urothelial carcinoma.

C. Ohyama, Toshikazu Tanaka, S. Hatakeyama, 2021, Urologic oncology.

Effect of active anticancer therapy on serologic response to SARS‐CoV‐2 BNT162b2 vaccine in patients with urothelial and renal cell carcinoma

C. Ohyama, S. Hatakeyama, T. Narita, 2022, International journal of urology : official journal of the Japanese Urological Association.

Relationship between lower urinary tract symptoms and frailty

A. Imai, C. Ohyama, S. Hatakeyama, 2023, International journal of urology : official journal of the Japanese Urological Association.

A Longitudinal Study of Bidirectional Relationships between Sleep Disorder and Frequency of Nocturia: Results from the Iwaki Health Promotion Project

A. Imai, C. Ohyama, S. Hatakeyama, 2020, Urologia Internationalis.

STone Episode Prediction: Development and validation of the prediction nomogram for urolithiasis

A. Imai, C. Ohyama, S. Nakaji, 2020, International journal of urology : official journal of the Japanese Urological Association.

Multicenter prospective study validating the efficacy of a quantitative assessment tool for frailty in patients with urological cancers

A. Imai, C. Ohyama, S. Nakaji, 2019, Medical Oncology.

Associations of impaired grip strength and gait function with the severity of erectile dysfunction in men undergoing dialysis: a cross-sectional study

C. Ohyama, K. Yoshikawa, S. Hatakeyama, 2021, The aging male : the official journal of the International Society for the Study of the Aging Male.

[A case report of skeletal muscle metastasis of renal cell carcinoma effectively treated with interferon-alpha].

H. Tamada, T. Okamoto, K. Takata, 2000, Hinyokika kiyo. Acta urologica Japonica.

Effects of apalutamide dose reduction on skin‐related adverse events in patients with advanced prostate cancer: A multicenter retrospective study

C. Ohyama, Toshikazu Tanaka, S. Hatakeyama, 2022, The Prostate.

Impact of body size on skin‐related adverse events in advanced prostate cancer treated with apalutamide: A multicenter retrospective study

C. Ohyama, Toshikazu Tanaka, S. Hatakeyama, 2022, International journal of urology : official journal of the Japanese Urological Association.

The influence of gut microbiome on progression of overactive bladder symptoms: a community-based 3-year longitudinal study in Aomori, Japan

C. Ohyama, T. Mikami, S. Hatakeyama, 2021, International Urology and Nephrology.

Validation and development of the CHAARTED criteria in patients with hormone‐naïve metastatic prostate cancer: A multi‐institutional retrospective study in Japan

T. Habuchi, C. Ohyama, Y. Arai, 2020, International journal of urology : official journal of the Japanese Urological Association.

The impact of time-to-castration resistance on survival in patients with metastatic hormone-naïve prostate cancer: A multicenter retrospective study.

T. Habuchi, N. Tsuchiya, C. Ohyama, 2020 .

Trends of incidence and age in adults with testicular germ cell tumors: a two-decade multicenter retrospective study

C. Ohyama, Toshikazu Tanaka, S. Hatakeyama, 2023, Translational Andrology and Urology.

[Recurrent spontaneous rupture of the urinary bladder: a case report].

H. Tamada, T. Okamoto, K. Maeda, 2000, Hinyokika kiyo. Acta urologica Japonica.

Trends in the age of hospitalized patients with urological cancers: A 17‐year experience

C. Ohyama, S. Hatakeyama, N. Fujita, 2023, International journal of urology : official journal of the Japanese Urological Association.

Effect of advanced glycation end products on nocturia or sleep disorders: A longitudinal study

A. Imai, C. Ohyama, S. Hatakeyama, 2021, BJUI compass.

[Metastatic renal tumor from oral floor cancer: a case report].

C. Ohyama, W. Kobayashi, T. Koie, 2012, Hinyokika kiyo. Acta urologica Japonica.

Humoral response to SARS-CoV-2 mRNA vaccine on in ABO blood type incompatible kidney transplant recipients treated with low-dose rituximab

C. Ohyama, S. Hatakeyama, T. Yoneyama, 2023, Scientific reports.

Relationship between the cross-sectional area of the lumbar dural sac and lower urinary tract symptoms: A population-based cross-sectional study

A. Imai, C. Ohyama, Y. Ishibashi, 2022, PloS one.

Associations of remaining teeth number, periodontal disease, and occlusal support status with erectile dysfunction in community-dwelling men.

C. Ohyama, Yoshihiro Tamura, S. Hatakeyama, 2024, International journal of urology : official journal of the Japanese Urological Association.

Association between sex hormones and erectile dysfunction in men without hypoandrogenism

C. Ohyama, S. Hatakeyama, N. Fujita, 2024, Scientific reports.

Association between oral frailty and lower urinary tract symptoms among middle-aged and older adults in community-dwelling individuals: a cross-sectional study.

C. Ohyama, Yoshihiro Tamura, S. Hatakeyama, 2024, International urology and nephrology.