1
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Fujita N, Hatakeyama S, Momota M, Okamoto T, Yamamoto H, Ito H, Yoneyama T, Hashimoto Y, Yoshikawa K, Ohyama C. An optimized surveillance protocol based on the European Association of Urology substratification improves surveillance costs after transurethral resection of bladder tumor in patients with high-risk non-muscle-invasive bladder cancer. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00323-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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2
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Momota M, Fujita N, Ishida M, Iwane T, Hatakeyama S, Yoneyama T, Hashimoto Y, Yoshikawa K, Yamaya K, Ohyama C. Can erectile dysfunction severity predict major adverse cardiovascular events in men undergoing dialysis: A prospective cohort study. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00605-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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3
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Fujita N, Momota M, Horiguchi H, Hatakeyama S, Ito H, Yoneyama T, Hashimoto Y, Nishimura S, Yoshikawa K, Ohyama C. High aortic calcification burden is a risk factor for acute kidney injury in patients who undergoing radical cystectomy: A multi-institutional retrospective cohort study. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00198-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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4
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Fujita N, Momota M, Soma O, Noro D, Mikami J, Hatakeyama S, Ito H, Yoneyama T, Hashimoto Y, Yoshikawa K, Ohyama C. Elevated prothrombin fragment 1+2 predicts severe acute kidney injury in patients with urological sepsis. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00192-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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5
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Hatakeyama S, Tabata R, Fujimori D, Fukuda M, Shinozaki T, Iwamura H, Okamoto T, Yoneyama T, Sato S, Ohyama C. Outcomes comparison between the robot-assisted radical prostatectomy with extended pelvic lymph node dissection and neoadjuvant chemohormonal therapy without extended pelvic lymph node dissection in patients with organ confined high-risk prostate cancer. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00909-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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6
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Yoneyama T, Yamamoto H, Sutoh Yoneyama M, Tobisawa Y, Hatakeyama S, Narita T, Kodama H, Momota M, Ito H, Narita S, Tsushima F, Mitsuzuka K, Yoneyama T, Hashimoto Y, Duivenvoorden W, Pinthus J, Kakeda S, Ito A, Tsuchiya N, Habuchi T, Ohyama C. Clinical significance of α2,3-sialylated prostate-specific antigen density and MRI for high-grade prostate cancer in biopsy-naïve men with elevated PSA level. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00565-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Iwamura H, Yoneyama T, Kodama H, Ozaki K, Ozaki Y, Okita K, Konishi S, Narita T, Fujita N, Kojima Y, Okamoto T, Tobisawa Y, Yamamoto H, Hatakeyama S, Yoneyama T, Hashimoto Y, Ohyama C. Development of a novel diagnostic model for urological cancers using comprehensive N-glycan signatures of serum immunoglobulins with a machine learning approach. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00097-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Anan G, Yoneyama T, Noro D, Tobisawa Y, Hatakeyama S, Yoneyama M, Yamamoto H, Yoneyama T, Hashimoto Y, Sato M, Ohyama C. Identification of aberrant glycosylation of osteopontin on urinary stone formation. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00614-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Narita T, Hatakeyama S, Yamamoto H, Imai A, Yoneyama T, Hashimoto Y, Ohyama C. Preoperative frailty promotes sarcopenia after radical cystectomy in patients with muscle-invasive bladder cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34135-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Yoneyama T, Tobisawa Y, Kaneko T, Kaya T, Hatakeyama S, Mori K, Sutoh Yoneyama M, Okubo T, Mitsuzuka K, Duivenvoorden W, Pinthus J, Hashimoto Y, Ito A, Koie T, Gardiner R, Ohyama C. Clinical significance of the LacdiNAc-glycosylated prostate-specific antigen assay for prostate cancer detection. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32909-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Horiguchi H, Hatakeyama S, Hashimoto Y, Yoneyama T, Yamamoto H, Imai A, Ohyama C. Impact of neoadjuvant chemotherapy on Ki67 proliferation index and PDL1 expression in muscle-invasive bladder cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32678-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Horiguchi H, Kubota Y, Hatakeyama S, Yoneyama T, Hashimoto Y, Itou H, Yoshikawa K, Sasaki A, Kawaguchi T, Ohyama C. Trends in the utilizaton of platinum-based neoadjuvant chemotherapy for upper tract urothelial carcinoma. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32776-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Narita T, Hatakeyama S, Yamamoto H, Imai A, Yoneyama T, Hashimoto Y, Ohyama C. Presence of transient hydronephrosis immediately after surgery has a limited influence on renal function 5 years after ileal neobladder construction. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34134-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Narita T, Hatakeyama S, Imai A, Tanaka T, Hamano I, Okamoto T, Yoneyama T, Yamamoto H, Yoneyama T, Hashimoto Y, Nakaji S, Suzuki T, Ohyama C. The impact of malnutrition on the risk of developing urolithiasis. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33387-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Yamamoto H, Yoneyama T, Hamano I, Tobisawa Y, Imai A, Hatakeyama S, Yoneyama T, Hashimoto Y, Yamaguchi Y, Ohyama C. Hyaluronic acid degrading enzyme: TMEM2 increase in patients with interstitial cystitis and bladder pain syndrome. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32896-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Yoshinaga M, Iwamoto M, Horigome H, Sumitomo N, Ushinohama H, Izumida N, Tauchi N, Yoneyama T, Abe M, Kato T, Hokosaki T, Kato Y, Nagashima M. P3468Tentative criteria of a combined RV3+SV3 voltage for early diagnosis of pediatric patients with hypertrophic cardiomyopathy. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
A high voltage in midprecordial leads, termed the Katz-Wachtel sign, is a surrogate marker of left- or bi-ventricular hypertrophy. Asymmetrical interventricular hypertrophy is a characteristic feature of hypertrophic cardiomyopathy (HCM). In Japan, a school-based electrocardiographic (ECG) screening program was developed for all 1st, 7th, and 10th graders. Our hypothesis is that a combined voltage of RV3+SV3 {V3(R+S)} is a marker to screen pediatric HCM.
Purpose
[1] To develop V3(R+S) voltage criteria in 1st, 7th, and 10th graders at the screening program and [2] to determine whether the criteria are useful for the early diagnosis of HCM.
Methods
[1] Overall, 48,401 digitally stored ECGs from 16,773 1st graders (6-year-olds), 18,126 7th graders (12-year-olds), and 13,502 10th graders (15-year-olds) were obtained after excluding ECGs of subjects with underlying diseases, arrhythmias, and ST/T changes. The prevalence of HCM in children is estimated at 2.9 per 100,000 (1/34,000). The screening points were assumed to be between 1/2,000 and 1/5,000 to exclude the possibility of false negatives. [2] In 12 HCM patients (males/females=10/2) who were diagnosed after 12 years of age (one case was diagnosed at 9 years of age), the ECGs at the screening program of their first grade (at 6 years of age) were retrospectively examined.
Results
[1] The V3(R+S) criteria were 6.0 mV, 6.0 mV, and 5.5 mV for 1st, 7th, and 10th grader males, and 5.0 mV, 4.5 mV, and 4.0 mV for 1st, 7th, and 10th grade females, respectively. The number of subjects (and prevalence in parentheses) selected by the criteria were 2 (1/4175), 3 (1/2981), and 1 (1/6477) for 1st, 7th, and 10th grade males, and 2 (1/4212), 3 (1/3061), and 1 (1/3513) for 1st, 7th, and 10th grade females, respectively. [2] Four of 12 cases fulfilled the criteria. Of these, one suddenly died at 18 years of age, one experienced out-of-hospital cardiac arrest at 16 years of age, and one already had an interventricular thickness of 19 mm at 12 years of age.
Conclusions
These tentative V3(R+S) voltage criteria may be useful for the early diagnosis of pediatric HCM patients, particularly severe patients. The children and adolescents who were screened can be followed at 2–3-year intervals with ECGs and echocardiography. Early diagnosis and intervention including lifestyle modification and medication may prevent them expiring from out-of-hospital cardiac arrest or sudden death. Finally, the criteria should be validated in clinical settings.
Acknowledgement/Funding
A Health and Labour Sciences Grant from the Ministry of Health, Labour and Welfare of Japan (H27-019)
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Affiliation(s)
- M Yoshinaga
- National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - M Iwamoto
- Saiseikai Yokohama City Eastern Hospital, Child Center, Yokohama, Japan
| | - H Horigome
- Tsukuba University, Department of Child Health, Graduate School of Comprehensive Human Sciences, Tsukuba, Japan
| | - N Sumitomo
- Saitama Medical University International Medical Center, Department of Pediatric Cardiology, Hidaka, Japan
| | | | - N Izumida
- Akebonocho Clinic, Pediatric Cardiology, tokyo, Japan
| | - N Tauchi
- Aichi Saiseikai Rehabilitation Hospital, Nagoya, Japan
| | | | - M Abe
- Tokyo Health Service Association, Tokyo, Japan
| | - T Kato
- Nagoya University Graduate School of Medicine, Department of Pediatrics/Developmental Pediatric, Nagoya, Japan
| | - T Hokosaki
- Yokohama City University Hospital, Pediatrics, Yokohama, Japan
| | - Y Kato
- National Cerebral and Cardiovascular Center, Division of Pediatric Cardiology, Osaka, Japan
| | - M Nagashima
- Aichi Saiseikai Rehabilitation Hospital, Nagoya, Japan
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Victor M, Melo J, Roldán R, Nakamura M, Tucci M, Costa E, Amato M, Yoneyama T, Tanaka H. Modelling approach to obtain regional respiratory mechanics using electrical impedance tomography and volume-dependent elastance model. Physiol Meas 2019; 40:045001. [PMID: 30921784 DOI: 10.1088/1361-6579/ab144a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This paper presents a method for breath-by-breath estimation of regional respiratory mechanics without the need for special manoeuvres (such as inspiratory pause or low-flow inflation) using electrical impedance tomography (EIT) associated with pressure/airflow waveforms. APPROACH We developed a method to estimate regional parameters using the regional impedance fraction, by multiplying it by global flow and volume waveforms. A volume-dependent elastance model was used to obtain compliance, resistance, volume-independent (E 1), and volume-dependent (E 2) components. Three swine under invasive mechanical ventilation were used to assess internal consistency and illustrate potential applications of our method. One animal (case 1) was ventilated with a broad range of tidal volumes to compare the consistency between regional and global resistances and compliances. Two other animals (cases 2 and 3) had respiratory compliance decreased, respectively, by overdistension and collapse as quantified by x-ray computed tomography. MAIN RESULTS In case 1, derived global estimates obtained from the independent regional estimates were strongly associated with direct measurements of global mechanics (correlation coefficients of 0.9976 and 0.9981 for compliances and resistances, respectively), suggesting consistency of our modelling. In cases 2 and 3, the development of lung overdistension and collapse over time was captured by regional estimates. CONCLUSIONS Using EIT and pressure/airflow waveforms, regional respiratory parameters can be obtained cycle-by-cycle, refining lung function monitoring. SIGNIFICANCE The method allows real-time monitoring of regional parameters and their trends over time, which might be helpful to differentiate deterioration in lung compliance due to overdistension or collapse.
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Affiliation(s)
- M Victor
- Electronics Engineering Department, Aeronautics Institute of Technology, São Paulo, Brazil
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Hatakeyama S, Konishi S, Okita K, Soma O, Matsumoto T, Yoneyama T, Hashimoto Y, Koie T, Ohyama C. The gap of frailty value from a community-dwelling population predict oncological outcomes in patients with urological cancers. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy435.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Hatakeyama S, Yamamoto H, Imai A, Yoneyama T, Hashimoto Y, Koie T, Ohyama C. The relationship between preoperative stage IIIB chronic kidney disease and post-surgical oncological outcomes in patients with urothelial carcinoma. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy435.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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20
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Imai A, Yamamoto H, Hatakeyama S, Yoneyama T, Hashimoto Y, Ohyama C. Comparison between robot-assisted radical prostatectomy and minimum incision endoscopic radical prostatectomy for high-risk prostate cancer following neoadjuvant therapy: A propensity score-matched analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy434.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Hatakeyama S, Kodama H, Konishi S, Okita K, Yamamoto H, Imai A, Yoneyama T, Hashimoto Y, Koie T, Ohyama C. Does neoadjuvant chemotherapy promote chemoresistance after recurrence in patients with muscle-invasive bladder cancer? Ann Oncol 2018. [DOI: 10.1093/annonc/mdy435.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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22
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Hashimoto Y, Imai A, Yamamoto H, Hatakeyama S, Yoneyama T, Ohyama C. Aldo-keto-reductase 1C3 expression in prostate cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy434.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Inoue T, Higuchi Y, Yoneyama T, Lin B, Nunomura K, Honma Y, Kato N. Semisynthesis and biological evaluation of a cotylenin A mimic derived from fusicoccin A. Bioorg Med Chem Lett 2018; 28:646-650. [PMID: 29398541 DOI: 10.1016/j.bmcl.2018.01.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/10/2018] [Accepted: 01/17/2018] [Indexed: 01/12/2023]
Abstract
In an effort to overcome the unavailability of cotylenin A (CN A), an anticancer agent and a stabilizer of protein-protein interactions (PPIs) mediated by 14-3-3 proteins, ISIR-050 was designed as a CN A mimic. The synthesis was accomplished via a semisynthetic approach starting from fusicoccin A. ISIR-050 showed interferon-α (IFNα)-dependent growth inhibitory activity and a PPI stabilization effect similar to those of CN A. The biochemical analysis suggested that ISIR-050 and CN A induce the same pharmacological response to IFNα-treated cancer cells and that 14-3-3 proteins play a role in the mode of action.
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Affiliation(s)
- Takatsugu Inoue
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Yusuke Higuchi
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan.
| | - Toru Yoneyama
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Bangzhong Lin
- Compound Library Screening Center, Graduate School of Pharmaceutical Sciences, Osaka University, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kazuto Nunomura
- Compound Library Screening Center, Graduate School of Pharmaceutical Sciences, Osaka University, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoshio Honma
- Cancer Center, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan
| | - Nobuo Kato
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
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Fujita N, Hatakeyama S, Yamamoto H, Imai A, Yoneyama T, Hashimoto Y, Koie T, Ohyama C. 295 The implication of aortic calcification on severe erectile dysfunction in patients with end stage renal disease. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fujita N, Hatakeyama S, Yamamoto H, Imai A, Yoneyama T, Hashimoto Y, Koie T, Ohyama C. 414 The implication of aortic calcification on late onset hypogonadism in patients with end stage renal disease. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Mursawa H, Hatakeyama S, Yamamoto H, Tanaka Y, Soma O, Matsumoto T, Yoneyama T, Hashimoto Y, Koie T, Fujita T, Murakami R, Saitoh H, Suzuki T, Narumi S, Ohyama C. Slow Progression of Aortic Calcification Is a Potential Benefit of Pre-emptive Kidney Transplantation. Transplant Proc 2018; 50:145-149. [PMID: 29407299 DOI: 10.1016/j.transproceed.2017.12.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/05/2017] [Indexed: 11/30/2022]
Abstract
PURPOSE Pre-emptive kidney transplantation (PKT) is expected to improve graft and cardiovascular event-free survival compared with standard kidney transplantation. Aortic calcification is reported to be closely associated with renal dysfunction and cardiovascular events; however, its implication in PKT recipients remains incompletely explored. This aim of this study was to evaluate whether PKT confers a protective effect on aortic calcification, renal function, graft survival, and cardiovascular event-free survival. METHODS One hundred adult patients who underwent renal transplantation between January 1996 and March 2016 at Hirosaki University Hospital and Oyokyo Kidney Research Institute were included. Among them, 19 underwent PKT and 81 patients underwent pretransplant dialysis. We retrospectively compared pretransplant and post-transplant aortic calcification index (ACI), renal function (estimated glomerular filtration rate [eGFR]), and graft and cardiovascular event-free survivals between the 2 groups. RESULTS The median age of this cohort was 45 years. Preoperative ACI was significantly lower in PKT recipients. There were no significant differences between the 2 groups regarding postoperative eGFR, graft survival, and cardiovascular event-free survival. However, the ACI progression rate (ΔACI/y) was significantly lower in PKT recipients than in those who underwent pretransplant dialysis. Higher ACI was significantly associated with poor cardiovascular event-free survival. CONCLUSIONS PKT is beneficial in that it contributes to the slow progression of after transplantation. Although we could not observe significant differences in graft and cardiovascular event-free survivals between the 2 groups, slow progression of aortic calcification showed a potential to decrease cardiovascular events in PKT recipients during long-term follow-up.
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Affiliation(s)
- H Mursawa
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - H Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Tanaka
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - O Soma
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Matsumoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Fujita
- Departments of Cardiology, Respiratory Medicine, and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - R Murakami
- Departments of Cardiology, Respiratory Medicine, and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Saitoh
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - T Suzuki
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - S Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - C Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Kido K, Hatakeyama S, Hamano I, Yamamoto H, Imai A, Yoneyama T, Hashimoto Y, Koie T, Fujita T, Murakami R, Tomita H, Suzuki T, Narumi S, Ohyama C. Partial Cystectomy of Paraganglioma of the Urinary Bladder Before Living Kidney Transplantation: Case Report. Transplant Proc 2018; 50:898-901. [PMID: 29661460 DOI: 10.1016/j.transproceed.2018.01.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 01/29/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Paraganglioma (extra-adrenal pheochromocytoma) of the bladder is a very rare disease, accounting for 0.06% of all bladder tumors. Optimal management of bladder paraganglioma before kidney transplantation is unknown. We report a case of partial cystectomy for urinary bladder paraganglioma before living kidney transplantation. CASE PRESENTATION A 59-year-old man with a 27-year history of hemodialysis was referred to our department for further examination of a bladder tumor detected during pre-transplantation testing. Cystoscopy revealed a submucosal tumor on the right side of the bladder. The patient experienced a hypertensive crisis during transurethral resection of the bladder tumor. Endocrinologic and pathologic examinations confirmed the diagnosis of paraganglioma in the urinary bladder. A partial cystectomy was performed before kidney transplantation. Nine months after partial cystectomy, the patient underwent AB0-incompatible living kidney transplantation from his spouse. No disease recurrence or graft rejection was observed 12 months after the transplantation. CONCLUSIONS To our knowledge, this is the 1st report on the management of paraganglioma in the urinary bladder before living kidney transplantation. Kidney transplantation after partial cystectomy is an option that may be considered in patients with paraganglioma of the urinary bladder, with careful observations of bladder function and vesicoureteral reflux to the grafts.
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Affiliation(s)
- K Kido
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - I Hamano
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Imai
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Fujita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - R Murakami
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Suzuki
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - S Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - C Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Hamano I, Hatakeyama S, Yamamoto H, Fujita T, Murakami R, Shimada M, Imai A, Yoneyama T, Yoneyama T, Hashimoto Y, Koie T, Narumi S, Saitoh H, Suzuki T, Tomita H, Ohyama C. Condyloma Acuminata of the Urethra in a Male Renal Transplant Recipient: A Case Report. Transplant Proc 2018; 50:2553-2557. [PMID: 30316397 DOI: 10.1016/j.transproceed.2018.02.182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 02/19/2018] [Indexed: 12/23/2022]
Abstract
BACKGROUND Condyloma acuminatum (CA) is a common sexually transmitted disease associated with human papilloma virus (HPV). CA occurring in the urethra is rare and has not been reported in male renal transplant recipients. In addition, despite immunosuppressive conditions and increased risk of HPV-related malignant neoplasms in transplant recipients, HPV testing in male transplant recipients has been uncommon. Here we report a case of urethral CA in a male deceased donor renal transplantation recipient and discuss the importance of HPV testing in male transplant recipients. CASE PRESENTATION A 33-year-old male deceased donor renal transplant recipient presented with miction pain 5 years after the transplantation. He reported repeated urinary tract infections with no sexual contact since the renal transplantation. Multiple papillary tumors in his penile urethra were detected by cystoscopy, and a biopsy sample was pathologically diagnosed with CA. Transurethral tumor resection was performed, and the tumors were completely resected. Additional HPV risk type screening with a urethral smear sample showed the prevalence of low-risk HPV. Although tacrolimus was switched to everolimus and imiquimod cream was administered, the tumors recurred 6 months after the resection, and a second resection was performed. No further recurrence has been observed for 1 year to date. CONCLUSION As the urethral CA was possibly related to immunosuppressive conditions and a risk for HPV-related malignant neoplasm, the case required careful diagnosis, including HPV risk type. The methodology of sampling for HPV testing in men has not been established. This case suggests the necessity for further discussion about HPV testing in male transplant recipients.
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Affiliation(s)
- I Hamano
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - S Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - H Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Fujita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - R Murakami
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - M Shimada
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Imai
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - H Saitoh
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - T Suzuki
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - H Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - C Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Tanaka T, Yoneyama T, Noro D, Imanishi K, Yuta K, Tobisawa Y, Mori K, Yamamoto H, Imai A, Hatakeyama S, Hashimoto Y, Koie T, Tanaka M, Nishimura S, Kurauchi S, Takahashi I, Ohyama C. Aberrant N-glycosylation profile of serum immunoglobulins is a diagnostic biomarker of urothelial carcinomas. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/s1569-9056(18)31832-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Hashimoto Y, Yoneyama T, Yamamoto H, Hatakeyama S, Yoneyama T, Koie T, Ohyama C. MECA79 positive high endothelial venule density (HEV) correlates with clinical outcomes in upper tract urothelial carcinoma patients treated with radical nephroureterectomy. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx661.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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31
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Hatakeyama S, Kubota Y, Matsumoto T, Soma O, Hamano I, Kusaka A, Hosogoe S, Yoneyama T, Hashimoto Y, Koie T, Ohyama C. Oncological outcomes of neoadjuvant chemotherapy in patients with locally advanced upper tract urothelial carcinoma: A multicenter study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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32
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Yoshinaga M, Iwamoto M, Horigome H, Sumitomo N, Ushinohama H, Izumida N, Tauchi N, Yoneyama T, Abe K, Nagashima M. P6374Standard values and characteristics of electrocardiographic findings in children and adolescents. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hatakeyama S, Yoneyama T, Hashimoto Y, Koie T, Ohyama C. 279P Quality of life during gemcitabine plus cisplatin or gemcitabine plus carboplatin for urothelial carcinoma. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw583.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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34
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Yoneyama T, Tanaka T, Narita T, Oikawa M, Hagiwara K, Yoneyama T, Imai A, Hatakeyama S, Hashimoto Y, Koie T, Ohyama C. 278P Sequential chemotherapy with gemcitabine plus carboplatin, followed by additional docetaxel for advanced upper-tract urothelial cancer patient with impaired renal function. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw583.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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35
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Hashimoto Y, Imai A, Hatakeyama S, Yoneyama T, Koie T, Ohyama C. 291P PD-L1 over expression may predict disease aggressiveness in prostate cancer. Ann Oncol 2016. [DOI: 10.1016/s0923-7534(21)00449-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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36
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Yoneyama T, Tanaka T, Narita T, Oikawa M, Hagiwara K, Yoneyama T. 278P Sequential chemotherapy with gemcitabine plus carboplatin, followed by additional docetaxel for advanced upper-tract urothelial cancer patient with impaired renal function. Ann Oncol 2016. [DOI: 10.1016/s0923-7534(21)00435-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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37
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Grzybowski JMV, Macau EEN, Yoneyama T. On synchronization in power-grids modelled as networks of second-order Kuramoto oscillators. Chaos 2016; 26:113113. [PMID: 27908000 DOI: 10.1063/1.4967850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This work concerns analytical results on the role of coupling strength in the phenomenon of onset of complete frequency locking in power-grids modelled as a network of second-order Kuramoto oscillators. Those results allow estimation of the coupling strength for the onset of complete frequency locking and to assess the features of network and oscillators that favor synchronization. The analytical results are evaluated using an order parameter defined as the normalized sum of absolute values of phase deviations of the oscillators over time. The investigation of the frequency synchronization within the subsets of the parameter space involved in the synchronization problem is also carried out. It is shown that the analytical results are in good agreement with those observed in the numerical simulations. In order to illustrate the methodology, a case study is presented, involving the Brazilian high-voltage transmission system under a load peak condition to study the effect of load on the syncronizability of the grid. The results show that both the load and the centralized generation might have concurred to the 2014 blackout.
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Affiliation(s)
- J M V Grzybowski
- UFFS-Federal University of Fronteira Sul, Rodovia RS 135 km 72, CEP 99.700-000 Erechim, Rio Grande do Sul, Brazil
| | - E E N Macau
- INPE-National Institute for Space Research, Av. dos Astronautas, 1758, Jd. Granja, CEP 12.227-010 São José dos Campos, Sao Paulo, Brazil
| | - T Yoneyama
- ITA-Aeronautics Institute of Technology, Pça Marechal Eduardo Gomes, 50, Vila das Acácias, CEP 12.228-615 São José dos Campos, Sao Paulo, Brazil
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Yamazaki M, Ohnishi T, Hosokawa K, Yamaguchi K, Yoneyama T, Kawashima A, Okada Y, Kitagawa K, Uchiyama S. Measurement of residual platelet thrombogenicity under arterial shear conditions in cerebrovascular disease patients receiving antiplatelet therapy. J Thromb Haemost 2016; 14:1788-97. [PMID: 27328457 DOI: 10.1111/jth.13391] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 05/22/2016] [Indexed: 11/29/2022]
Abstract
UNLABELLED Essentials A consensus methodology for assessing the effects of antiplatelet agents has not been established. Measuring platelet thrombus formation (PTF) for evaluating antiplatelet effects was assessed. PTF differentially reflected antiplatelet effects compared to other tests. PTF may be associated with the severity of carotid or intracranial arterial stenosis. Click to hear a presentation on platelet function testing in the clinic by Gresele and colleagues SUMMARY Background A consensus methodology for assessing the effects of antiplatelet agents has not been established. Objective We investigated the usefulness of directly measuring platelet thrombus formation (PTF) using a microchip-based flow chamber system for evaluating antiplatelet therapy. Patients/Methods Platelet thrombus formation in the whole blood of 94 patients with ischemic cerebrovascular disease treated with clopidogrel and/or aspirin was measured in a flow chamber system at a shear rate of 1500 s(-1) and was compared with the results of assays for agonist-induced platelet aggregability, phosphorylation of vasodilator-stimulated phosphoprotein, platelet p-selectin expression (PS), and platelet-monocyte complexes. Results In all patients tested, area under the flow pressure curve (AUC10), which represents platelet thrombogenicity, showed weak correlation with platelet aggregation induced by either adenosine diphosphate or collagen. In addition, AUC10 was lower in patients treated with dual antiplatelet therapy (median 79.4) compared with patients treated with aspirin or clopidogrel alone (217.7 and 301.0, respectively), whereas the parameters evaluated by the other assays did not reflect the combined treatment efficacy. In clopidogrel monotherapy patients, AUC10 was associated with the severity of arterial stenosis (R(2) = 0.127, β = 1.25), and AUC10 and PS were higher in patients with severe carotid or intracranial arterial stenosis than in those with mild stenosis. Conclusions Platelet thrombus formation measurement using a flow-chamber system was useful for evaluating the efficacy of treatment with aspirin and clopidogrel, both alone and in combination. The present findings indicate that high residual platelet thrombogenicity in patients treated with clopidogrel may be associated with the severity of carotid or intracranial arterial stenosis.
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Affiliation(s)
- M Yamazaki
- Department of Neurology, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan.
| | - T Ohnishi
- Research Institute, Fujimori Kogyo Co., Ltd, Yokohama, Kanagawa, Japan
| | - K Hosokawa
- Research Institute, Fujimori Kogyo Co., Ltd, Yokohama, Kanagawa, Japan
| | - K Yamaguchi
- Department of Neurosurgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - T Yoneyama
- Department of Neurosurgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - A Kawashima
- Department of Neurosurgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - Y Okada
- Department of Neurosurgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - K Kitagawa
- Department of Neurology, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - S Uchiyama
- Department of Neurology, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
- Clinical Research Center for Medicine, International University of Health and Welfare, Center for Brain and Cerebral Vessels, Sanno Hospital and Sanno Medical Center, Tokyo, Minato-ku, Japan
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Oikawa M, Hatakeyama S, Narita T, Yamamoto H, Hosogoe S, Imai A, Yoneyama T, Hashimoto Y, Koie T, Fujita T, Murakami R, Saitoh H, Funyu T, Narumi S, Ohyama C. Safety and Effectiveness of Marginal Donor in Living Kidney Transplantation. Transplant Proc 2016; 48:701-5. [DOI: 10.1016/j.transproceed.2015.09.067] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 08/21/2015] [Accepted: 09/15/2015] [Indexed: 10/21/2022]
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40
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Jenkins H, Sakurai Y, Nishimura A, Okamoto H, Hibberd M, Jenkins R, Yoneyama T, Ashida K, Ogama Y, Warrington S. Randomised clinical trial: safety, tolerability, pharmacokinetics and pharmacodynamics of repeated doses of TAK-438 (vonoprazan), a novel potassium-competitive acid blocker, in healthy male subjects. Aliment Pharmacol Ther 2015; 41:636-48. [PMID: 25707624 PMCID: PMC4654261 DOI: 10.1111/apt.13121] [Citation(s) in RCA: 184] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 09/25/2014] [Accepted: 01/26/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND TAK-438 (vonoprazan) is a potassium-competitive acid blocker that reversibly inhibits gastric H(+) , K(+) -ATPase. AIM To evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of TAK-438 in healthy Japanese and non-Japanese men. METHODS In two Phase I, randomised, double-blind, placebo-controlled studies, healthy men (Japan N = 60; UK N = 48) received TAK-438 10-40 mg once daily at a fixed dose level for 7 consecutive days. Assessments included safety, tolerability, pharmacokinetics and pharmacodynamics (intragastric pH). RESULTS Plasma concentration-time profiles of TAK-438 at all dose levels showed rapid absorption (median Tmax ≤2 h). Mean elimination half-life was up to 9 h. Exposure was slightly greater than dose proportional, with no apparent time-dependent inhibition of metabolism. There was no important difference between the two studies in AUC0-tau on Day 7. TAK-438 caused dose-dependent acid suppression. On Day 7, mean 24-h intragastric pH>4 holding time ratio (HTR) with 40 mg TAK-438 was 100% (Japan) and 93.2% (UK), and mean night-time pH>4 HTR was 100% (Japan) and 90.4% (UK). TAK-438 was well tolerated. The frequency of adverse events was similar at all dose levels and there were no serious adverse events. There were no important increases in serum alanine transaminase activity. Serum gastrin and pepsinogen I and II concentrations increased with TAK-438 dose. CONCLUSIONS TAK-438 in multiple rising oral dose levels of 10-40 mg once daily for 7 days was safe and well tolerated in healthy men and caused rapid, profound and sustained suppression of gastric acid secretion throughout each 24-h dosing interval. Clinicaltrials.gov identifiers: NCT02123953 and NCT02141711.
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Affiliation(s)
- H Jenkins
- Takeda Development Centre Europe LtdLondon, UK
| | - Y Sakurai
- Takeda Pharmaceutical Company LtdOsaka, Japan
| | - A Nishimura
- Takeda Pharmaceutical Company LtdOsaka, Japan
| | - H Okamoto
- Takeda Pharmaceutical Company LtdOsaka, Japan
| | - M Hibberd
- Takeda Development Centre Europe LtdLondon, UK
| | - R Jenkins
- Takeda Development Centre Europe LtdLondon, UK
| | - T Yoneyama
- Takeda Pharmaceutical Company Ltd, FujisawaJapan
| | - K Ashida
- Department of Gastroenterology and Hepatology, Saiseikai Nakatsu HospitalOsaka, Japan
| | - Y Ogama
- Medical Co. LTA Honjo Clinic (current Sumida Hospital)Tokyo, Japan
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Lowes S, Hucker R, Jemal M, Marini JC, Rezende VM, Shoup R, Singhal P, Timmerman P, Yoneyama T, Weng N, Zimmer D. Tiered approaches to chromatographic bioanalytical method performance evaluation: recommendation for best practices and harmonization from the Global Bioanalysis Consortium harmonization team. AAPS J 2015; 17:17-23. [PMID: 25338740 PMCID: PMC4287281 DOI: 10.1208/s12248-014-9656-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 08/04/2014] [Indexed: 11/30/2022] Open
Abstract
The A2 harmonization team, a part of the Global Bioanalysis Consortium (GBC), focused on defining possible tiers of chromatographic-based bioanalytical method performance. The need for developing bioanalytical methods suitable for the intended use is not a new proposal and is already referenced in regulatory guidance language. However, the practical implementation of approaches that differ from the well-established full validation requirements has proven challenging. Advances in technologies, the need to progress drug development more efficiently, and emerging new drug compound classes support the use of categorized tiers of bioanalytical methods. This paper incorporated the input from an international team of experienced bioanalysts to surmise the advantages and the challenges of tiered approaches and to provide recommendations on paths forward.
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Affiliation(s)
- S Lowes
- Bioanalytical and ADME Labs, Quintiles, 19 Brown Road, Ithaca, New York, 14850, USA,
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Hatakeyama S, Fujita T, Murakami R, Suzuki Y, Sugiyama N, Yamamoto H, Okamoto A, Imai A, Tobisawa Y, Yoneyama T, Mori K, Yoneyama T, Hashimoto Y, Koie T, Narumi S, Ohyama C. Outcome comparison of ABO-incompatible kidney transplantation with low-dose rituximab and ABO-compatible kidney transplantation: a single-center experience. Transplant Proc 2014; 46:445-8. [PMID: 24655984 DOI: 10.1016/j.transproceed.2013.09.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 09/20/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND The development of immunosuppressive techniques has helped overcome the ABO incompatibility barrier. However, the outcomes of ABO-incompatible (ABOi) kidney transplantation remain a controversial issue with the advent of the anti-CD20 chimeric antibody rituximab. Herein, we report the outcomes of ABOi kidney transplantation with low-dose rituximab. PATIENTS AND METHODS Between June 2006 and April 2013, 42 patients underwent living-related kidney transplantation at our hospital. The patients were divided into 2 groups: ABO-compatible (ABOc; n = 29) and ABOi kidney transplants using low-dose rituximab (100 mg/m(2)) without splenectomy (n = 13). The basic immunosuppression regimen (calcineurin inhibitor [CNI], mycophenolate mofetil [MMF], and steroids) was the same for both groups, except for the use of rituximab and therapeutic apheresis in the ABOi group. We compared post-transplantation renal function, incidents of virus infection, episodes of rejection, and graft survival between the 2 groups. RESULTS In our hospital, 30% of recipients received ABOi kidney transplants. The estimated glomerular filtration rate (eGFR) did not differ between the groups. Rejection episodes confirmed by biopsy in the ABOc and ABOi groups were 8 (28%) and 4 (31%) patients (P = .833), acute antibody-mediated rejection was observed in 1 (3.5%) and 2 (15%) patients (P = .165), and virus infection was observed in 14 (48%) and 3 (23%) patients (P = .252), respectively. The 5-year patient survival rate was 100% in both groups, and the 5-year graft survival rates were 95% for ABOc and 100% for ABOi transplants (P = .527). CONCLUSIONS These results suggest that the outcomes of ABOi kidney transplantation with low-dose rituximab are similar to those of ABOc kidney transplantation. Further study is necessary to address the efficacy and safety of ABOi kidney transplantation.
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Affiliation(s)
- S Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - T Fujita
- Department of Cardiology, Respiratory Medicine and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - R Murakami
- Department of Cardiology, Respiratory Medicine and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Suzuki
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - N Sugiyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Okamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Imai
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Tobisawa
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - K Mori
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Hashimoto
- Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Hirosaki, Japan
| | - C Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Imanishi K, Hatakeyama S, Yamamoto H, Okamoto A, Imai A, Yoneyama T, Hashimoto Y, Koie T, Fujita T, Murakami R, Saitoh H, Funyu T, Narumi S, Ohyama C. Post-transplant renal function and cardiovascular events are closely associated with the aortic calcification index in renal transplant recipients. Transplant Proc 2014; 46:484-8. [PMID: 24655995 DOI: 10.1016/j.transproceed.2013.09.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 09/20/2013] [Indexed: 12/21/2022]
Abstract
INTRODUCTION The aortic calcification index (ACI) is reported to be closely associated with renal dysfunction and cardiovascular events; however, its implication in renal transplant recipients has not been well examined. In this study, we investigated the relationship between pretransplant ACI, ACI progression, post-transplant renal function, and post-transplant cardiovascular events in renal transplant recipients. PATIENTS AND METHODS The study from June 1996 to Jan 2012 included 61 renal transplant recipients (living donors, 47; cadaveric donors, 14). The median follow-up period was 60 months. ACI was quantitatively measured on abdominal computed tomography. The relationship between age, dialysis period, estimated glomerular filtration rate (eGFR), and pre- and post-transplant ACI was longitudinally evaluated. Risk factors for post-transplant ACI progression were determined by logistic regression analysis. Patient background and the incidence of post-transplant cardiovascular events were also assessed. RESULTS The pretransplant ACI (median 4.2%) significantly correlated with age at transplant, dialysis period, and diabetes mellitus. ACI gradually increased up to 2.8 times at 10 years after transplantation. Post-transplant eGFR significantly correlated with ACI progression in patients with chronic kidney disease of stage ≥ 3. Logistic regression analyses showed that age at transplantation, post-transplant period, cadaveric donors, and post-transplant chronic kidney disease stage 3 were risk factors for post-transplant ACI progression. The pretransplant ACI was higher (median 66%) in 3 patients who experienced post-transplant cardiovascular events. CONCLUSIONS ACI progression closely correlates with age and post-transplant renal function. A high pretransplant ACI is a risk factor for post-transplant cardiovascular events in renal transplant recipients.
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Affiliation(s)
- K Imanishi
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - H Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Okamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Imai
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Fujita
- Department of Cardiology, Respiratory Medicine and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - R Murakami
- Department of Cardiology, Respiratory Medicine and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Saitoh
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - T Funyu
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - S Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - C Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Yamamoto H, Tokui N, Okamoto T, Imanishi K, Tobisawa Y, Yoneyama T, Imai A, Hatakeyama S, Yoneyama T, Mori K, Hashimoto Y, Koie T, Terayama Y, Nigawara T, Ohyama C. PD1-01 AORTIC CALCIFICATION INDEX (ACI) OF THE PATIENTS WITH PRIMARY ALDOSTERONISM (PA) IS AN INDEPENDENT PREDICTOR OF HYPERTENSIVE STATUS AT 1 YEAR AFTER LAPAROSCOPIC ADRENALECTOMY (LA). J Urol 2014. [DOI: 10.1016/j.juro.2014.02.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Koie T, Ohyama C, Yamamoto H, Hatakeyama S, Kudoh S, Yoneyama T, Hashimoto Y, Kamimura N. Minimum incision endoscopic radical cystectomy in patients with malignant tumors of the urinary bladder: Clinical and oncological outcomes at a single institution. Eur J Surg Oncol 2012; 38:1101-5. [DOI: 10.1016/j.ejso.2012.07.115] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 05/20/2012] [Accepted: 07/19/2012] [Indexed: 10/28/2022] Open
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Grzybowski JMV, Macau EEN, Yoneyama T. On the formulation and solution of the isochronal synchronization stability problem in delay-coupled complex networks. Chaos 2012; 22:033152. [PMID: 23020491 DOI: 10.1063/1.4753921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We present a new framework to the formulation of the problem of isochronal synchronization for networks of delay-coupled oscillators. Using a linear transformation to change coordinates of the network state vector, this method allows straightforward definition of the error system, which is a critical step in the formulation of the synchronization problem. The synchronization problem is then solved on the basis of Lyapunov-Krasovskii theorem. Following this approach, we show how the error system can be defined such that its dimension can be the same as (or smaller than) that of the network state vector.
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Affiliation(s)
- J M V Grzybowski
- Technological Institute of Aeronautics-ITA, Praça Marechal Eduardo Gomes, 50, Vila das Acácias, São José dos Campos, SP CEP 12.228-900, Brazil.
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Yoneyama T, Ishibashi Y, Okamoto T, Suzuki Y, Tobisawa Y, Yoneyama T, Okamoto A, Yamamoto H, Imai A, Hatakeyama S, Mori K, Hashimoto Y, Koie T, Kamimura N, Ohyama C. 535 SEQUENTIAL CHEMOTHERAPY WITH GEMCITABINE+CARBOPLATIN FOLLOWED BY GEMCITABINE+CARBOPLATIN+ DOCETAXEL FOR ADVANCED UPPER-TRACT UROTHELIAL CANCER. J Urol 2012. [DOI: 10.1016/j.juro.2012.02.608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Yoneyama T, Watanabe T, Kagawa H, Hamada J, Hayashi Y, Nakada M. Force detecting gripper and flexible micro manipulator for neurosurgery. Annu Int Conf IEEE Eng Med Biol Soc 2012; 2011:6695-9. [PMID: 22255875 DOI: 10.1109/iembs.2011.6091651] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In order to realize a less invasive robotic neurosurgery for the deeply seated tumor, a force detecting gripper with a flexible micro manipulator has been developed. Gripping force applied on the gripper is detected by strain gages fit on the gripper clip. Signal is conducted to the amplifier by the cables through the inner pipe of the manipulator. In order to approach to the deeply seated tumor through a narrow hole, a micro manipulator which can flex at the end part to face the gripper for the target and can rotate the closing direction of the gripper at the end of the manipulator has been developed. Some operation test showed that the developed manipulator can approach flexibly to the target, and the taking out force of a target on the soft material was detected clearly.
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Affiliation(s)
- T Yoneyama
- College of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
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Hatakeyama S, Fujita T, Yoneyama T, Yoneyama T, Koie T, Hashimoto Y, Saitoh H, Funyu T, Narumi S, Ohyama C. A Switch From Conventional Twice-Daily Tacrolimus to Once-Daily Extended-Release Tacrolimus in Stable Kidney Transplant Recipients. Transplant Proc 2012; 44:121-3. [DOI: 10.1016/j.transproceed.2011.11.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Koie T, Yamamoto H, Hatakeyama S, Kudoh S, Yoneyama T, Hashimoto Y, Kamimura N, Ohyama C. Minimum incision endoscopic radical prostatectomy: clinical and oncological outcomes at a single institute. Eur J Surg Oncol 2011; 37:805-10. [PMID: 21782374 DOI: 10.1016/j.ejso.2011.06.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2010] [Revised: 05/12/2011] [Accepted: 06/14/2011] [Indexed: 11/27/2022] Open
Abstract
AIMS The objective of this study was to investigate the clinical and oncological outcomes of prostatectomy patients undergoing minimum incision endoscopic radical prostatectomy (MIE-RP). METHODS Between September 2005 and May 2010, 541 patients underwent MIE-RP with bilateral lymphadenectomy for clinically localized prostate cancer at Hirosaki University Hospital. The present retrospective study enrolled 375 patients who had not received neoadjuvant or adjuvant therapy. MIE-RP was performed through a 6-cm suprapubic midline incision. A 30° laparoscope was conveniently positioned on the head side of the patient for precise observation and monitoring. RESULTS The median operating time was 119 min, and the estimated blood loss was 900 ml. The most frequent perioperative complication was leakage from the vesicourethral anastomosis (6.7%), and rectal injury occurred in 1.0%. Overall, 31.2% of the patients had a positive surgical margin, including 11.1% with pT2, 52.9% with pT3 and 100% with pT4 diseases. The post-operative median follow-up period was 40.5 months (range, 2-56.5 months). The 5-year PSA-free survival rate was 71.6%. In multivariate analysis, high-risk patients (according to the D'Amico risk criteria), pathological T stage and positive surgical margins were identified as independent predictors of PSA-free survival. The limitations of this study included a retrospective study, relatively short follow-up period and single-institution nature of the study. CONCLUSIONS MIE-RP is a safe and minimally invasive procedure that may represent a reliable alternative to laparoscopic and robotic-assisted RP.
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Affiliation(s)
- T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036 8562, Japan
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