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Maeba T, Hirata K, Kotoku M, Seki N, Maeda K, Hirashima S, Yamanaka H, Sakai T, Obika S, Hori A, Hara Y, Noji S, Suwa Y, Yokota M, Fujioka S, Yamaguchi T, Katsuda Y, Hata T, Miyagawa N, Arita K, Nomura Y, Taniguchi T, Asahina K, Aratsu Y, Naka Y, Adachi T, Nomura A, Akai S, Oshida SI, Pai S, Crowe P, Bradley E, Steensma R, Tao H, Fenn M, Babine R, Li X, Thacher S, Soeta T, Ukaji Y, Shiozaki M. Discovery and SAR of JTE-151: A Novel RORγ Inhibitor for Clinical Development. J Med Chem 2024; 67:952-970. [PMID: 38170624 DOI: 10.1021/acs.jmedchem.3c01933] [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] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
A number of RORγ inhibitors have been reported over the past decade. There were also several examples advancing to human clinical trials, however, none of them has reached the market yet, suggesting that there could be common obstacles for their future development. As was expected from the general homology of nuclear receptor ligands, insufficient selectivity as well as poor physicochemical properties were identified as potential risks for a RORγ program. Based on such considerations, we conducted a SAR investigation by prioritizing drug-like properties to mitigate such potential drawbacks. After an intensive SAR exploration with strong emphasis on "drug-likeness" indices, an orally available RORγ inhibitor, JTE-151, was finally generated and was advanced to a human clinical trial. The compound was confirmed to possess highly selective profiles along with good metabolic stability, and most beneficially, no serious adverse events (SAE) and good PK profiles were observed in the human clinical trial.
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Affiliation(s)
- Takaki Maeba
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
- Division of Material Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan
| | - Kazuyuki Hirata
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Masayuki Kotoku
- Akros Pharma Inc., Boston Office, One Broadway, 14th Floor, Cambridge, Massachusetts 02142, United States
| | - Noriyoshi Seki
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Katsuya Maeda
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Shintaro Hirashima
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Hiroshi Yamanaka
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Takayuki Sakai
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Shingo Obika
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Akimi Hori
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Yoshinori Hara
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Satoru Noji
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Yoshihiro Suwa
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Masahiro Yokota
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Shingo Fujioka
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Takayuki Yamaguchi
- Pharmaceutical Division, Japan Tobacco Inc., 3-4-1, Nihonbashi-Honcho, Chuo-ku, Tokyo 103-0023, Japan
| | - Yoshiaki Katsuda
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Takahiro Hata
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Naoki Miyagawa
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Kojo Arita
- Pharmaceutical Division, Japan Tobacco Inc., 3-4-1, Nihonbashi-Honcho, Chuo-ku, Tokyo 103-0023, Japan
| | - Yukihiro Nomura
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Toshio Taniguchi
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Kota Asahina
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Yusuke Aratsu
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Yuichi Naka
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Tsuyoshi Adachi
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Akihiro Nomura
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Shota Akai
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Shin-Ichi Oshida
- Central Pharmaceutical Research Institute, Yokohama Research Center, Japan Tobacco Inc., 1-13-2, Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan
| | - Sudhakar Pai
- Akros Pharma Inc., 302 Carnegie Center, Suite 300, Princeton, New Jersey 08540, United States
| | - Paul Crowe
- Orphagen Pharmaceuticals, 11558 Sorrento Valley Road, Suite 4, San Diego, California 92121, United States
| | - Erin Bradley
- Orphagen Pharmaceuticals, 11558 Sorrento Valley Road, Suite 4, San Diego, California 92121, United States
| | - Ruo Steensma
- Orphagen Pharmaceuticals, 11558 Sorrento Valley Road, Suite 4, San Diego, California 92121, United States
| | - Haiyan Tao
- Orphagen Pharmaceuticals, 11558 Sorrento Valley Road, Suite 4, San Diego, California 92121, United States
| | - Morgan Fenn
- Orphagen Pharmaceuticals, 11558 Sorrento Valley Road, Suite 4, San Diego, California 92121, United States
| | - Robert Babine
- Orphagen Pharmaceuticals, 11558 Sorrento Valley Road, Suite 4, San Diego, California 92121, United States
| | - Xiaolin Li
- Orphagen Pharmaceuticals, 11558 Sorrento Valley Road, Suite 4, San Diego, California 92121, United States
| | - Scott Thacher
- Orphagen Pharmaceuticals, 11558 Sorrento Valley Road, Suite 4, San Diego, California 92121, United States
| | - Takahiro Soeta
- Division of Material Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan
| | - Yutaka Ukaji
- Division of Material Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan
| | - Makoto Shiozaki
- Central Pharmaceutical Research Institute, Takatsuki Research Center, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
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Watanabe J, Ohya H, Sakai J, Suwa Y, Goto K, Nakagawa K, Ozawa M, Ishibe A, Suwa H, Kunisaki C, Endo I. Long-term outcomes of indocyanine green fluorescence imaging-guided laparoscopic lateral pelvic lymph node dissection for clinical stage II/III middle-lower rectal cancer: a propensity score-matched cohort study. Tech Coloproctol 2023; 27:759-767. [PMID: 36773172 DOI: 10.1007/s10151-023-02761-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 01/25/2023] [Indexed: 02/12/2023]
Abstract
BACKGROUND We previously reported that indocyanine green fluorescence imaging (ICG-FI)-guided laparoscopic lateral pelvic lymph node dissection (LPLND) was able to increase the total number of harvested lateral pelvic lymph nodes without impairing functional preservation. However, the long-term outcomes of ICG-FI-guided laparoscopic LPLND have not been evaluated. The aim of the present study was to compare the long-term outcomes of ICG-FI-guided laparoscopic LPLND to conventional laparoscopic LPLND without ICG-FI. METHODS This was a retrospective, multi-institutional study with propensity score matching. The study population included consecutive patients with middle-low rectal cancer (clinical stage II to III) who underwent laparoscopic LPLND between January 2013 and February 2018. The main evaluation items in this study were the 3-year overall survival, relapse-free survival (RFS), local recurrence rate, and lateral local recurrence (LLR) rate. RESULTS A total of 172 patients with middle-lower rectal cancer who had undergone laparoscopic LPLND were included in this study. After propensity score matching, 58 patients were matched in each of the ICG-FI and non-ICG-FI groups. There were no substantial differences in the baseline characteristics between the two groups. The ICG-FI group and non-ICG-FI group included 40 and 38 women and had a median age of 65 (IQR 60-72) and 66 (IQR 60-73) years, respectively. The median follow-up for all patients was 63.7 (IQR 51.3-76.8) months. The estimated respective 3-year overall survival, RFS, and local recurrence rates were 93.1%, 70.7%, and 5.2% in the ICG-FI group and 85.9%, 71.7%, and 12.8% in the non-ICG-FI group (p = 0.201, 0.653, 0.391). The 3-year cumulative LLR rate was 0% in the ICG-FI group and 9.3% in the non-ICG-FI group (p = 0.048). CONCLUSIONS This study revealed that laparoscopic LPLND combined with ICG-FI was able to decrease the LLR rate. It appears that ICG-FI could contribute to improving the quality of laparoscopic LPLND and strengthening local control of the lateral pelvis. TRIALS REGISTRATION This study was registered with the Japanese Clinical Trials Registry as UMIN000041372 ( http://www.umin.ac.jp/ctr/index.htm ).
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Affiliation(s)
- J Watanabe
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-Cho, Minami-Ku, Yokohama, 232-0024, Japan.
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - H Ohya
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - J Sakai
- Department of Surgery, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Y Suwa
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-Cho, Minami-Ku, Yokohama, 232-0024, Japan
| | - K Goto
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-Cho, Minami-Ku, Yokohama, 232-0024, Japan
| | - K Nakagawa
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - M Ozawa
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - A Ishibe
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - H Suwa
- Department of Surgery, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - C Kunisaki
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-Cho, Minami-Ku, Yokohama, 232-0024, Japan
| | - I Endo
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Ohya H, Watanabe J, Chida K, Goto K, Suwa Y, Nakagawa K, Suwa H, Ozawa M, Ishibe A, Endo I. Initial experience with the transanal approach for lateral pelvic lymph node dissection in rectal cancer. Tech Coloproctol 2023; 27:685-691. [PMID: 36757559 DOI: 10.1007/s10151-023-02763-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 01/25/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND The efficacy and safety of transanal lateral pelvic lymph node dissection (TaLPLND) in rectal cancer has not yet been clarified. The aim of the present study was to evaluate the short-term results as an initial experience of TaLPLND. METHODS This retrospective study included patients with middle to lower rectal cancer who underwent TaLPLND from July 2018 to July 2021. Our institutions targeted lymph nodes in the internal iliac area and the obturator area for lateral pelvic lymph node dissection (LPLND). RESULTS A total of 30 consecutive patients with rectal cancer were included in this analysis. The median age was 60 years (range, 36-83 years), and the male-female ratio was 2:1. The median operative time was 362 min (IQR, 283-661 min), and the median intraoperative blood loss was 74 ml (IQR, 5-500 ml). Intraoperative blood transfusion was required in one case. No cases required conversion to laparotomy. TaLPLND was performed bilaterally in 13 patients (43.3%). Five patients (16.7%) underwent LPLND with combined resection of the internal iliac vessels. The median distance of the distal margin from the anal verge was 20 mm. The pathological radial margin (pRM) was positive in one case, and the negative pRM rate was 96.7%. Short-term postoperative complications (Clavien-Dindo classification grade ≥ II) were observed in nine cases (30.0%). There were no cases of reoperation or mortality. The median number of harvested lateral pelvic lymph nodes was 11 (range, 3-28). On pathological examination, lateral pelvic lymph nodes were positive for metastasis in seven cases (23.3%). CONCLUSIONS TaLPLND appeared to be beneficial from an oncological point of view because it was close to the upstream lymphatic drainage from the tumor. The short-term outcomes of this initial experience indicate that this novel approach is feasible.
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Affiliation(s)
- H Ohya
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Kanazawa-Ku, Yokohama, Japan
| | - J Watanabe
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-Cho, Minami-Ku, YokohamaYokohama, 232-0024, Japan.
| | - K Chida
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-Cho, Minami-Ku, YokohamaYokohama, 232-0024, Japan
| | - K Goto
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-Cho, Minami-Ku, YokohamaYokohama, 232-0024, Japan
| | - Y Suwa
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-Cho, Minami-Ku, YokohamaYokohama, 232-0024, Japan
| | - K Nakagawa
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Kanazawa-Ku, Yokohama, Japan
| | - H Suwa
- Department of Surgery, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - M Ozawa
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Kanazawa-Ku, Yokohama, Japan
| | - A Ishibe
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Kanazawa-Ku, Yokohama, Japan
| | - I Endo
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Kanazawa-Ku, Yokohama, Japan
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Yamazaki K, Satake H, Takashima A, Mizusawa J, Kataoka T, Fukuda H, Ishizuka Y, Suwa Y, Numata K, Shibata N, Asayama M, Yokota M, Tsushima T, Ohta T, Yamaguchi T, Hamaguchi T, Kanemitsu Y. 446TiP Randomized phase III study of bi-weekly trifluridine/tipiracil (FTD/TPI) plus bevacizumab (BEV) vs. FTD/TPI for chemorefractory metastatic colorectal cancer (mCRC): ROBiTS/JCOG2014. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1867] [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: 11/26/2022] Open
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Taniguchi N, Miyasaka Y, Suwa Y, Harada S, Nakai E, Shiojima I. External validation of H2ARDD score for the prediction of heart failure events in patients with atrial fibrillation. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0480] [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
Heart failure is an important consequence in patients with atrial fibrillation (AF) which is associated with worse prognosis. The H2ARDD score, calculated from 5 clinical risk factors, was reported as a predictor of heart failure events in patients with AF. However, this score has not been externally validated.
Purpose
The purpose of this study was to evaluate and validate the usefulness of the H2ARDD score for the prediction of heart failure events in AF patients.
Methods
We used prospective data of patients with AF followed up from 2007 to 2017 in our institute. Patients with active cancer were excluded according to the previous report. H2ARDD score was calculated as follows; history of heart disease=2 points, anemia=1 point, renal dysfunction=1 point, diabetes =1 point, diuretic use=1 point (range from 0 to 6 points). Outcome of interest was defined as heart failure events including new-onset heart failure and death with heart failure. Heart failure was ascertained based on the Framingham criteria. Univariable and multivariable Cox-proportional hazards model were used to assess the risk of heart failure events. Heart failure events-free survival was estimated with Kaplan-Meier methods, and the predictive accuracy of the H2ARDD score for the prediction of heart failure events was measured by the area under the receiver operating characteristic (ROC) curve.
Results
Of 562 AF patients, 522 (age 69±10 year–old, 64.9%men) met study criteria. Patients who had a history of heart disease was 185 (35%), diabetes mellitus was 135 (26%), anemia was 54 (10%), renal dysfunction was 221 (43%), and diuretic use was 193 (37%). The mean H2ARDD score was 1.88±1.57. Of all study patients, 84 (16.2%) developed heart failure events during a mean follow–up of 54±42 months. Patients who developed heart failure events in 1 year was 24 (4.6%). In multivariable Cox–proportional hazards model, H2ARDD score was shown as an significant predictor for heart failure events (hazard ratio: 1.56, 95% confidence interval: 1.36 - 1.79, P<0.0001), independently of age (per 10 years, hazard ratio: 1.35, 95% confidence interval: 1.03 – 1.78, P<0.05). In the Kaplan–Meier analyses stratified by H2ARDD score (0–1, 2–3, 4–6), patients who had a higher H2ARDD sore had significantly worse heart failure event-free survival (log-rank P<0.0001) (Figure 1). The area under the ROC curve for the prediction of heart failure events in 1-year was 0.812 (95% confidence interval: 0.737 – 0.887, P<0.0001), and the best cut-off value was ≥4 points (sensitivity: 67%, specificity: 83%) (Figure 2).
Conclusion
H2ARDD score was demonstrated as a significant independent predictor for the prediction of heart failure events, with high predictive accuracy. H2ARDD score may be useful for heart failure risk stratification of AF patients.
Funding Acknowledgement
Type of funding sources: None. Figure 1Figure 2
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Affiliation(s)
| | | | - Y Suwa
- Kansai Medical University, Osaka, Japan
| | - S Harada
- Kansai Medical University, Osaka, Japan
| | - E Nakai
- Kansai Medical University, Osaka, Japan
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Watanabe J, Ishibe A, Takei S, Suwa Y, Suwa H, Endo I. A new intracorporeal suture-less stapled end-to-end anastomosis in laparoscopic left-colectomy for colon cancer - a video vignette. Colorectal Dis 2020; 22:1803-1804. [PMID: 32620045 DOI: 10.1111/codi.15232] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 06/15/2020] [Indexed: 02/08/2023]
Affiliation(s)
- J Watanabe
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - A Ishibe
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - S Takei
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Y Suwa
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - H Suwa
- Department of Surgery, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - I Endo
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Miyasaka Y, Taniguchi N, Suwa Y, Nakai E, Harada S, Shiojima I. Usefulness of H2FPEF score as an independent predictor of heart failure development in patients with atrial fibrillation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 11/13/2022] Open
Abstract
Abstract
Background
The H2 FPEF score, which based on simple clinical characteristics and echocardiography, enables discrimination of HFpEF from noncardiac causes of dyspnea.
Purpose
We sought to evaluate whether H2 FPEF score predicts congestive heart failure (CHF) development in patients with atrial fibrillation (AF).
Methods
Among adult AF patients who underwent transthoracic echocardiography between July 2007 and December 2008, those with preserved left ventricular ejection fraction (LVEF) (≥50%) were included and followed up to new-onset CHF events. Patients with a history of CHF, cardiac surgery, or significant left-sided valvular heart disease were excluded. The H2 FPEF score was calculated from 6 variables (obesity = 2 points, treatment with ≥2 antihypertensive drugs = 1 point, AF = 3 points, echocardiographic pulmonary artery systolic pressure >35 mmHg = 1 point, age >60 years = 1 point, and echocardiographic E/e'ratio >9 = 1 point). CHF was ascertained using Framingham criteria. Cox-proportional hazards modeling was used to assess risk of CHF development.
Results
Of 562 AF patients, 367 (69±10 year old, 66% men) met all study criteria. Of whom, 37 (10%) developed CHF events during a mean follow–up of 56±43 months. The mean H2 FPEF score was 5.50±1.14, and the number of patients with H2 FPEF score ≥7 was 64 (17%). After adjusting for comorbidities in a multivariate model, H2 FPEF score was significant predictor of new-onset CHF events both as continuous (HR=1.43, 95% CI: 1.05–1.96, P<0.05) or categorical (H2 FPEF score ≥7) (HR=2.32, 95% CI: 1.17–4.63, P<0.05) variables. The Kaplan-Meier estimates of CHF-free survival stratified by H2 FPEF status (≥7 or <7) were shown in Figure.
Conclusion
H2 FPEF score provides prognostic information for new-onset CHF development in patients with AF.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Y Miyasaka
- Kansai Medical University, Department of Medicine II, Osaka, Japan
| | - N Taniguchi
- Kansai Medical University, Department of Medicine II, Osaka, Japan
| | - Y Suwa
- Kansai Medical University, Department of Medicine II, Osaka, Japan
| | - E Nakai
- Kansai Medical University, Department of Medicine II, Osaka, Japan
| | - S Harada
- Kansai Medical University, Department of Medicine II, Osaka, Japan
| | - I Shiojima
- Kansai Medical University, Department of Medicine II, Osaka, Japan
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Suwa Y, Joshi M, Poynter L, Endo I, Ashrafian H, Darzi A. Obese patients and robotic colorectal surgery: systematic review and meta-analysis. BJS Open 2020; 4:1042-1053. [PMID: 32955800 PMCID: PMC7709366 DOI: 10.1002/bjs5.50335] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 07/05/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Obesity is a major health problem, demonstrated to double the risk of colorectal cancer. The benefits of robotic colorectal surgery in obese patients remain largely unknown. This meta-analysis evaluated the clinical and pathological outcomes of robotic colorectal surgery in obese and non-obese patients. METHODS MEDLINE, Embase, Global Health, Healthcare Management Information Consortium (HMIC) and Midwives Information and Resources Service (MIDIRS) databases were searched on 1 August 2018 with no language restriction. Meta-analysis was performed according to PRISMA guidelines. Obese patients (BMI 30 kg/m2 or above) undergoing robotic colorectal cancer resections were compared with non-obese patients. Included outcome measures were: operative outcomes (duration of surgery, conversion to laparotomy, blood loss), postoperative complications, hospital length of stay and pathological outcomes (number of retrieved lymph nodes, positive circumferential resection margins and length of distal margin in rectal surgery). RESULTS A total of 131 full-text articles were reviewed, of which 12 met the inclusion criteria and were included in the final analysis. There were 3166 non-obese and 1420 obese patients. A longer duration of surgery was documented in obese compared with non-obese patients (weighted mean difference -21·99 (95 per cent c.i. -31·52 to -12·46) min; P < 0·001). Obese patients had a higher rate of conversion to laparotomy than non-obese patients (odds ratio 1·99, 95 per cent c.i. 1·54 to 2·56; P < 0·001). Blood loss, postoperative complications, length of hospital stay and pathological outcomes were not significantly different in obese and non-obese patients. CONCLUSION Robotic surgery in obese patients results in a significantly longer duration of surgery and higher conversion rates than in non-obese patients. Further studies should focus on better stratification of the obese population with colorectal disease as candidates for robotic procedures.
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Affiliation(s)
- Y. Suwa
- Department of Surgery and CancerImperial College LondonLondonUK
- Department of Gastroenterological SurgeryYokohama City UniversityYokohamaJapan
| | - M. Joshi
- Department of Surgery and CancerImperial College LondonLondonUK
| | - L. Poynter
- Department of Surgery and CancerImperial College LondonLondonUK
| | - I. Endo
- Department of Gastroenterological SurgeryYokohama City UniversityYokohamaJapan
| | - H. Ashrafian
- Department of Surgery and CancerImperial College LondonLondonUK
| | - A. Darzi
- Department of Surgery and CancerImperial College LondonLondonUK
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Suwa Y, Miyasaka Y, Taniguchi N, Harada S, Shiojima I. P303Prognostic value of diastolic wall strain in patients with asymptomatic severe aortic stenosis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0138] [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: 11/13/2022] Open
Abstract
Abstract
Background
Diastolic wall strain (DWS) has been reported to be associated with left ventricular (LV) stiffness and worse clinical outcomes. We sought to assess the utility of this new index for prediction of prognosis in asymptomatic patients with severe aortic stenosis (AS).
Methods
Asymptomatic severe AS patients [peak flow velocity (PFV) ≥4.0m/s, mean pressure gradient (mPG) ≥40mmHg, aortic valve area (AVA) ≤1.0cm2, or indexed AVA ≤0.6cm2/m2)] diagnosed between July 2007 and April 2016 were included in this study. Patients with significant mitral valve disease, posterior wall motion abnormality, prior cardiac surgery, hypertrophic cardiomyopathy, and LV ejection fraction <50% were excluded. DWS was calculated with a validated formula [DWS = (posterior wall thickness at end-systole − posterior wall thickness at end-diastole)/posterior wall thickness at end-systole]. All study patients were prospectively followed up to last visit or death until November 2017, and predictive value of all-cause death was assessed using Cox-proportional hazards modeling. Patients who underwent aortic valve replacement (AVR) during the study period were censored on the date of surgery.
Results
A total of 184 asymptomatic severe AS, 138 (age 76±9year-old, men 41%, PFV 3.9±1.0m/s, mPG 38±19mmHg, AVA 0.83±0.18cm2, indexed AVA 0.56±0.13cm2/m2) met all study criteria. Of whom, 43 (31%) underwent AVR and 28 (20%) died during a mean follow-up of 25±28months. In a multivariable model after adjusting for clinical and echocardiographic variables, advancing age (per10yrs; HR=2.19, 95% CI=1.19–4.03, P<0.05), history of hemodialysis (HR=4.31, 95% CI=1.30–14.35, P<0.05), and low-DWS (DWS <0.30) (HR=2.83, 95% CI=1.25–6.40, P<0.05) were independent predictors of all-cause death. In the Kaplan-Meier estimates of cumulative survival stratified by DWS status were shown (Figure).
The Kaplan-Meier estimates of survival
Conclusion
Low-DWS provides prognostic information in patients with asymptomatic severe AS.
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Affiliation(s)
- Y Suwa
- Kansai Medical University, Osaka, Japan
| | | | | | - S Harada
- Kansai Medical University, Osaka, Japan
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10
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Kotoku M, Maeba T, Fujioka S, Yokota M, Seki N, Ito K, Suwa Y, Ikenogami T, Hirata K, Hase Y, Katsuda Y, Miyagawa N, Arita K, Asahina K, Noguchi M, Nomura A, Doi S, Adachi T, Crowe P, Tao H, Thacher S, Hashimoto H, Suzuki T, Shiozaki M. Discovery of Second Generation RORγ Inhibitors Composed of an Azole Scaffold. J Med Chem 2019; 62:2837-2842. [PMID: 30776227 DOI: 10.1021/acs.jmedchem.8b01567] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Starting from a previously reported RORγ inhibitor (1), successive efforts to improve in vivo potency were continued. Introduction of metabolically beneficial motifs in conjunction with scaffold hopping was examined, resulting in discovery of the second generation RORγ inhibitor composed of a 4-(isoxazol-3-yl)butanoic acid scaffold (24). Compound 24 achieved a 10-fold improvement in in vivo potency in a mouse CD3 challenge model along with significant anti-inflammatory effects in a mouse dermatitis model.
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Affiliation(s)
- Masayuki Kotoku
- Graduate School of Medical Science , Kyoto Prefectural University of Medicine , 1-5 Shimogamo-hangi-cho , Sakyo-ku , Kyoto 603-0823 , Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Paul Crowe
- Orphagen Pharmaceuticals , 11558 Sorrento Valley Road, Suite 4 , San Diego , California 92121 , United States
| | - Haiyan Tao
- Orphagen Pharmaceuticals , 11558 Sorrento Valley Road, Suite 4 , San Diego , California 92121 , United States
| | - Scott Thacher
- Orphagen Pharmaceuticals , 11558 Sorrento Valley Road, Suite 4 , San Diego , California 92121 , United States
| | | | - Takayoshi Suzuki
- Graduate School of Medical Science , Kyoto Prefectural University of Medicine , 1-5 Shimogamo-hangi-cho , Sakyo-ku , Kyoto 603-0823 , Japan
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11
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Abe Y, Yokozawa S, Umemiya-Shirafuji R, Moumouni P, Suwa Y, Suzuki H. Fertilizing ability of canine spermatozoa cryopreserved with skim milk-based extender in a retrospective study. Reprod Domest Anim 2017; 53:237-242. [PMID: 29110350 DOI: 10.1111/rda.13098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 04/19/2017] [Accepted: 09/19/2017] [Indexed: 12/18/2022]
Abstract
We previously reported that skim milk (SM) is an effective cryoprotectant for cryopreservation of canine spermatozoa instead of egg yolk (EY), which is the conventional cryoprotectant. In this study, the fertilizing ability and practical use of frozen canine spermatozoa prepared with SM were evaluated by transcervical insemination. Frozen-thawed spermatozoa were inseminated one to four times on days 2-9 after the LH surge. In SM group, a single transcervical insemination (TCI) on Day 5 led to higher delivery rate (83%) than any other days (33%-50%) post-LH surge. In EY group, delivery rate in double TCI on days 5 and 6 (71%) was higher compared to any other experimental groups (0%-44%). Regardless of single or double, TCI on Day 5 or Day 6 led to higher litter sizes in SM or EY groups, respectively. The breeding efficiency and litter size of single TCI on Day 5 (4.2) and double TCI on Day 5 and Day 6 (3.7) were significantly higher than in the other experimental groups in SM and EY groups, respectively (p < .05). These findings suggest that skim milk is a suitable alternative to egg yolk for cryopreservation of canine spermatozoa, and the suitable timing for insemination might be on Day 5 post-LH surge.
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Affiliation(s)
- Y Abe
- Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
| | - S Yokozawa
- Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
| | - R Umemiya-Shirafuji
- Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan.,Global Agro-Medicine Research Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
| | - Pfa Moumouni
- Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
| | - Y Suwa
- Hokkaido Guide Dog Association, Sapporo, Japan
| | - H Suzuki
- Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan.,Global Agro-Medicine Research Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan.,Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
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Shigehisa H, Suwa Y, Furiya N, Nakaya Y, Fukushima M, Ichihashi Y, Hiroya K. Corrigendum: Stereocontrolled Synthesis of Trichodermatide A. Angew Chem Int Ed Engl 2015; 54:12537. [DOI: 10.1002/anie.201508208] [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: 11/06/2022]
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13
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Shigehisa H, Suwa Y, Furiya N, Nakaya Y, Fukushima M, Ichihashi Y, Hiroya K. Berichtigung: Stereocontrolled Synthesis of Trichodermatide A. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508208] [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]
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14
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Fukui N, Ueno T, Ito Y, Takahashi Y, Kimura Y, Nakajima Y, Kasuya S, Kanou M, Takubo K, Yamamoto K, Suwa Y, Sunano A, Hashiguchi N. Quantification of Growth Factors in Platelet-Rich Fibrin: A Preliminary Study. J HARD TISSUE BIOL 2015. [DOI: 10.2485/jhtb.24.231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Nozomu Fukui
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
- Surgical Implant Dentistry, University of California
| | - Takaaki Ueno
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
| | - Yuichi Ito
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
| | - Yasuko Takahashi
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
| | - Yoshihiro Kimura
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
| | - Yoichiro Nakajima
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
| | - Shin Kasuya
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
| | - Miwa Kanou
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
| | - Kimiko Takubo
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
| | - Kayoko Yamamoto
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
| | - Yoshihiro Suwa
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
| | - Akihiro Sunano
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
| | - Norihiro Hashiguchi
- Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
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Shigehisa H, Suwa Y, Furiya N, Nakaya Y, Fukushima M, Ichihashi Y, Hiroya K. Stereocontrolled synthesis of trichodermatide A. Angew Chem Int Ed Engl 2013; 52:3646-9. [PMID: 23417860 DOI: 10.1002/anie.201210099] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Hiroki Shigehisa
- Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo, 202-8585, Japan
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Shigehisa H, Suwa Y, Furiya N, Nakaya Y, Fukushima M, Ichihashi Y, Hiroya K. Stereocontrolled Synthesis of Trichodermatide A. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201210099] [Citation(s) in RCA: 2] [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: 11/06/2022]
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17
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Yasuda T, Waki M, Kuroda K, Hanajima D, Fukumoto Y, Yamagishi T, Suwa Y, Suzuki K. Responses of community structure of amoA
-encoding archaea and ammonia-oxidizing bacteria in ammonia biofilter with rockwool mixtures to the gradual increases in ammonium and nitrate. J Appl Microbiol 2012. [DOI: 10.1111/jam.12091] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T. Yasuda
- Institute of Livestock and Grassland Science; National Agriculture and Food Research Organization; Tsukuba Ibaraki Japan
| | - M. Waki
- Institute of Livestock and Grassland Science; National Agriculture and Food Research Organization; Tsukuba Ibaraki Japan
| | - K. Kuroda
- Kyushu Okinawa Agricultural Research Center; National Agriculture and Food Research Organization; Koshi Kumamoto Japan
| | - D. Hanajima
- Agricultural Research Center for Hokkaido Region; National Agriculture and Food Research Organization; Sapporo Hokkaido Japan
| | - Y. Fukumoto
- Institute of Livestock and Grassland Science; National Agriculture and Food Research Organization; Tsukuba Ibaraki Japan
| | - T. Yamagishi
- Institute of Environmental Management Technology; National Institute of Advanced Industrial Science and Technology; Tsukuba Ibaraki Japan
| | - Y. Suwa
- Department of Biological Sciences; Chuo University; Tokyo Japan
| | - K. Suzuki
- Institute of Livestock and Grassland Science; National Agriculture and Food Research Organization; Tsukuba Ibaraki Japan
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Suwa Y, Nakamura T, Toma S, Koga T, Shuto T, Ikemizu S, Kai H, Morioka H, Yamagata Y. Structural basis for DNA recognition and binding specificity by the transcription factor Ets2. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311082535] [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: 11/10/2022] Open
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19
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Shibata M, Kiuchi K, Sekiguchi YI, Suwa Y. Truncated Moment Formalism for Radiation Hydrodynamics in Numerical Relativity. ACTA ACUST UNITED AC 2011. [DOI: 10.1143/ptp.125.1255] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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20
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Hiroya K, Suwa Y, Ichihashi Y, Inamoto K, Doi T. Total synthesis of optically active lycopladine A by utilizing diastereoselective protection of carbonyl group in a 1,3-cyclohexanedione derivative. J Org Chem 2011; 76:4522-32. [PMID: 21542635 DOI: 10.1021/jo200418y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We successfully synthesized two enantiomers of bicyclic enones, (7R,7aR)- and (7S,7aS)-9, from the hemiacetal 2a, which we first synthesized from the symmetrical diketone 1a via diastereoselective carbon-oxygen bond formation between one of the carbonyl groups and the chiral alcohol on the C2 side chain in a 2,2-disubstituted 1,3-cycloalkanedione derivative. We also report the total synthesis of natural (+)-lycopladine A [(+)-6] from (7R,7aR)-9 and the formal synthesis of unnatural (-)-lycopladine A [(-)-6] from (7S,7aS)-9.
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Affiliation(s)
- Kou Hiroya
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba-ku, Sendai, Japan.
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21
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Hiroya K, Ichihashi Y, Suwa Y, Ikai T, Inamoto K, Doi T. Facile synthesis of asymmetric quaternary centers based on diastereoselective protection of the carbonyl group at the symmetrical position. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.05.010] [Citation(s) in RCA: 11] [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: 11/30/2022]
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22
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Matheson VG, Forney LJ, Suwa Y, Nakatsu CH, Sexstone AJ, Holben WE. Evidence for Acquisition in Nature of a Chromosomal 2,4-Dichlorophenoxyacetic Acid/(alpha)-Ketoglutarate Dioxygenase Gene by Different Burkholderia spp. Appl Environ Microbiol 2010; 62:2457-63. [PMID: 16535356 PMCID: PMC1388894 DOI: 10.1128/aem.62.7.2457-2463.1996] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We characterized the gene required to initiate the degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) by the soil bacterium Burkholderia sp. strain TFD6, which hybridized to the tfdA gene of the canonical 2,4-D catabolic plasmid pJP4 under low-stringency conditions. Cleavage of the ether bond of 2,4-D by cell extracts of TFD6 proceeded by an (alpha)-ketoglutarate-dependent reaction, characteristic of TfdA (F. Fukumori and R. P. Hausinger, J. Bacteriol. 175:2083-2086, 1993). The TFD6 tfdA gene was identified in a recombinant plasmid which complemented a tfdA transposon mutant of TFD6 created by chromosomal insertion of Tn5. The plasmid also expressed TfdA activity in Escherichia coli DH5(alpha), as evidenced by enzyme assays with cell extracts. Sequence analysis of the tfdA gene and flanking regions from strain TFD6 showed 99.5% similarity to a tfdA gene cloned from the chromosome of a different Burkholderia species (strain RASC) isolated from a widely separated geographical area. This chromosomal gene has 77.2% sequence identity to tfdA from plasmid pJP4 (Y. Suwa, W. E. Holben, and L. J. Forney, abstr. Q-403, in Abstracts of the 94th General Meeting of the American Society for Microbiology 1994.). The tfdA homologs cloned from strains TFD6 and RASC are the first chromosomally encoded 2,4-D catabolic genes to be reported. The occurrence of highly similar tfdA genes in different bacterial species suggests that this chromosomal gene can be horizontally transferred.
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Suwa Y, Nakamura T, Toma S, Ikemizu S, Kai H, Morioka H, Yamagata Y. Structural basis for transcriptional regulation mechanisms by the transcription factor Ets2. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308090296] [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: 11/10/2022] Open
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Kawamura S, Ando M, Nakamura T, Tsubono K, Tanaka T, Funaki I, Seto N, Numata K, Sato S, Ioka K, Kanda N, Takashima T, Agatsuma K, Akutsu T, Akutsu T, Aoyanagi KS, Arai K, Arase Y, Araya A, Asada H, Aso Y, Chiba T, Ebisuzaki T, Enoki M, Eriguchi Y, Fujimoto MK, Fujita R, Fukushima M, Futamase T, Ganzu K, Harada T, Hashimoto T, Hayama K, Hikida W, Himemoto Y, Hirabayashi H, Hiramatsu T, Hong FL, Horisawa H, Hosokawa M, Ichiki K, Ikegami T, Inoue KT, Ishidoshiro K, Ishihara H, Ishikawa T, Ishizaki H, Ito H, Itoh Y, Kamagasako S, Kawashima N, Kawazoe F, Kirihara H, Kishimoto N, Kiuchi K, Kobayashi S, Kohri K, Koizumi H, Kojima Y, Kokeyama K, Kokuyama W, Kotake K, Kozai Y, Kudoh H, Kunimori H, Kuninaka H, Kuroda K, Maeda KI, Matsuhara H, Mino Y, Miyakawa O, Miyoki S, Morimoto MY, Morioka T, Morisawa T, Moriwaki S, Mukohyama S, Musha M, Nagano S, Naito I, Nakagawa N, Nakamura K, Nakano H, Nakao K, Nakasuka S, Nakayama Y, Nishida E, Nishiyama K, Nishizawa A, Niwa Y, Ohashi M, Ohishi N, Ohkawa M, Okutomi A, Onozato K, Oohara K, Sago N, Saijo M, Sakagami M, Sakai SI, Sakata S, Sasaki M, Sato T, Shibata M, Shinkai H, Somiya K, Sotani H, Sugiyama N, Suwa Y, Tagoshi H, Takahashi K, Takahashi K, Takahashi T, Takahashi H, Takahashi R, Takahashi R, Takamori A, Takano T, Taniguchi K, Taruya A, Tashiro H, Tokuda M, Tokunari M, Toyoshima M, Tsujikawa S, Tsunesada Y, Ueda KI, Utashima M, Yamakawa H, Yamamoto K, Yamazaki T, Yokoyama J, Yoo CM, Yoshida S, Yoshino T. The Japanese space gravitational wave antenna - DECIGO. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1742-6596/122/1/012006] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Koga K, Taguchi A, Koshimizu S, Suwa Y, Yamada Y, Shirasaka N, Yoshizumi H. Reactive Oxygen Scavenging Activity of Matured Whiskey and Its Active Polyphenols. J Food Sci 2007; 72:S212-7. [DOI: 10.1111/j.1750-3841.2007.00311.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lina BAR, Wolterbeek APM, Suwa Y, Fujikawa S, Ishikura Y, Tsuda S, Dohnalek M. Subchronic (13-week) oral toxicity study, preceded by an in utero exposure phase, with arachidonate-enriched triglyceride oil (SUNTGA40S) in rats. Food Chem Toxicol 2006; 44:326-35. [PMID: 16168548 DOI: 10.1016/j.fct.2005.08.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [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: 03/31/2005] [Revised: 06/29/2005] [Accepted: 08/04/2005] [Indexed: 10/25/2022]
Abstract
Polyunsaturated fatty acids (PUFAs), such as arachidonic acid (ARA) and docosahexaenoic acid (DHA) are natural constituents found in human milk, fish oil or egg yolk. Until recently, infant formulas, though providing the essential fatty acid precursors for these PUFAs, did not contain preformed ARA or DHA. In this study the safety of SUNTGA40S as source of ARA, not only for use in infant formulas but also for nutritional products or food supplements, was evaluated in a subchronic study in Wistar rats, preceded by a 4-week pretreatment period of parental (F(0)) rats and exposure of the F(0) dams throughout mating, gestation and lactation. SUNTGA40S was administered at dietary levels of 0.5%, 1.5% and 5% (wt/wt) adjusted with corn oil to 5.76% added fat. An additional group received 3.65% (wt/wt) SUNTGA40S in conjunction with 2.11% (wt/wt) high DHA Tuna oil, providing an ARA:DHA ratio of 2.7:1. High-fat and low-fat controls received basal diet with or without 5.76% corn-oil supplement. The content, stability and homogeneous distribution of the test substances in the diet were confirmed under study conditions. The administration of SUNTGA40S, with or without DHA oil, did not affect health, growth, fertility or reproductive performance of the parental rats, nor pup characteristics (condition, weight gain, viability, number per litter or sex ratio). In the subchronic study with the offspring (F(1)) rats, no significant differences were found in condition, neurobehavioural observations, ophthalmoscopy, growth, urinalysis or macroscopic and microscopic findings between the test groups and the low-fat or the high-fat controls. In males of the 5% SUNTGA40S and the SUNTGA40S/DHA group, red blood cell counts, haemoglobin concentration and packed cell volume were lower and reticulocytes were slightly higher than in the high-fat and low-fat control groups. Cholesterol, triglycerides and phospholipids in plasma were lower than in the high-fat controls in both sexes in the 5% SUNTGA40S and the SUNTGA40S/DHA group and (for triglycerides only) in the 1.5% SUNTGA group. Due to the administration of extra dietary fat, food intake and prothrombin time (males only) were lower and alkaline phosphatase activity was higher in all the high-fat groups, including the corn-oil controls, as compared to the low-fat controls. The weight of the spleen was higher in males of the 5% SUNTGA40S and the SUNTGA40S/DHA group compared to both the low-fat and the high-fat controls. The effects noted in this study at high dose levels of SUNTGA40S are consistent with previously reported physiological responses to dietary intake of high PUFA containing oils. The present results provide evidence that SUNTGA40S is a safe source of arachidonic acid. Except during lactation when the intake in dams doubled, 5% Suntga40S in the diet was equivalent to an overall intake of approximately 3g/kg body weight/day in F(0) and F(1) animals.
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Affiliation(s)
- B A R Lina
- TNO Quality of Life, Toxicology and Applied Pharmacology, Zeist, The Netherlands.
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Bae HS, Yamagishi T, Suwa Y. Developing and sustaining 3-chlorophenol-degrading populations in up-flow anaerobic column reactors under circum-denitrifying conditions. Appl Microbiol Biotechnol 2002; 59:118-24. [PMID: 12073142 DOI: 10.1007/s00253-002-0974-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 09/25/2001] [Revised: 01/24/2002] [Accepted: 02/07/2002] [Indexed: 10/27/2022]
Abstract
Microbial consortia capable of degrading 3-chlorophenol (3-CP) were enriched in continuous up-flow column reactors under circum-denitrifying conditions. 3-CP degradation capability was developed and sustained when 3-CP was supplied at 16-21 microM, although suppression of the 3-CP degradation capability was observed when 3-CP was supplied at 42 microM. When 3-CP was stably degraded, the ratio of nitrate consumption to 3-CP degradation approached the theoretical stoichiometric value, which was calculated by assuming a 3-CP degradation-dependent nitrate reduction. Batch-incubation experiments demonstrated that the microbial consortium that was enriched in the column reactors required either nitrate or oxygen for degrading 3-CP, while 3-CP was not degraded under sulfate-degrading conditions. Although many attempts were made to sustain the microbial 3-CP degradation capability under denitrifying conditions, mostly in batch cultures, none of them have been successful so far. Therefore, the results obtained in this study may be the first to demonstrate sustainable 3-CP degradation capability under circum-denitrifying conditions.
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Affiliation(s)
- H S Bae
- Institute for Environmental Management Technology, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan
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Yamagishi T, Leite J, Ueda S, Yamaguchi F, Suwa Y. Simultaneous removal of phenol and ammonia by an activated sludge process with cross-flow filtration. Water Res 2001; 35:3089-3096. [PMID: 11487105 DOI: 10.1016/s0043-1354(01)00032-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Attempts were made for removing ammonia from synthetic wastewater under the presence of phenol, which is inhibitory to nitrification, by using a single-stage activated sludge process with cross-flow filtration. Activated sludge biomass which had been acclimated with phenol for over 15 years was used for the inoculum, and synthetic wastewater was continuously supplied to the process retaining biomass at 8000 mg VSS l(-1). Phenol was completely removed, and ammonia was simultaneously nitrified to nitrate; nitrification rate reached 200 mg N l(-1) d(-1) when phenol was removed at a rate up to 300 mg l(-1) d(-1). It was observed that 0-13% of the ammonia was removed via denitrification. Intermittent aeration enhanced the denitrification rate to 160 mg N l(-1) d(-1) by utilizing phenol. and approximately 24% of the denitrified nitrogen was recovered as nitrous oxide. Methanol, which is the most commonly used electron donor in conventional nitrogen removal processes, did not enhance the denitrification rate of the phenol-acclimated activated sludge used in this study, however phenol did. The results suggest that this process potentially works as a space- and energy-saving nitrogen removal process by utilizing substances inhibitory to nitrifiers as electron donors for denitrification.
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Affiliation(s)
- T Yamagishi
- Department of Ecological Chemistry and Microbiology, National Institute for Resources and Environment, AIST, MITI, Tsukuba, Ibaraki, Japan.
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31
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Takeuchi R, Suwa Y, Yamagishi T, Yonezawa Y. Anaerobic transformation of chlorophenols in methanogenic sludge unexposed to chlorophenols. Chemosphere 2000; 41:1457-1462. [PMID: 11057583 DOI: 10.1016/s0045-6535(99)00521-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Transformation of all 19 chlorophenol (CP) isomers was investigated in a laboratory anaerobic methanogenic sludge that had not been exposed to synthetic chemicals. Concentration of CP was analyzed over time to calculate disappearance rate constants using first-order reaction kinetics and all possible CP degradation pathways were estimated. The rate constants ranged between 0.46 x 10(-3) and 0.161 day(-1). CPs were transformed via dechlorination. The chlorine atom at the ortho-position was the most easily dechlorinated, whereas dechlorination rate at the para-position was lowest. The overall pathways of CP transformation were much less diverse than that we previously found for contaminated sediment. The Dolfing hypothesis of microbial selection of the most thermodynamically favorable pathways was not applicable for CP transformation in this study as well as previous study performed by our group.
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Affiliation(s)
- R Takeuchi
- National Institute for Resources and Environment, AIST, MITI, Ecological Chemistry and Microbiology, Tsukuba, Ibaraki, Japan.
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32
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Abstract
We attempted to clarify the relationship between cyclin E to p27(Kip1), Ki-67 and clinicopathologic features in transitional cell bladder carcinoma. Immunohistochemical staining of archival tissue specimens of transitional cell bladder carcinoma obtained from 94 patients was performed by the labeled streptavidin-biotin-peroxidase method. Overexpression of cyclin E protein was observed in 38 of the 94 (40.4%) specimens, and was positively correlated with histological grade, Ki-67 LI and p27(Kip1) labeling index (LI). These data suggest that cyclin E may be associated with aggressive tumor growth, and may have a relationship with p27(Kip1) for the regulation of cell cycle progression in transitional cell bladder carcinoma.
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Affiliation(s)
- K Makiyama
- Department of Urology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama-shi, Kanagawa-ken, Japan
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33
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Sato K, Inaba M, Suwa Y, Matsuu A, Hikasa Y, Ono K, Kagota K. Inherited defects of sodium-dependent glutamate transport mediated by glutamate/aspartate transporter in canine red cells due to a decreased level of transporter protein expression. J Biol Chem 2000; 275:6620-7. [PMID: 10692470 DOI: 10.1074/jbc.275.9.6620] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Canine red cells have a high affinity Na(+)/K(+)-dependent glutamate transporter. We herein demonstrate that this transport is mediated by the canine homologue of glutamate/aspartate transporter (GLAST), one of the glutamate transporter subtypes abundant in the central nervous system. We also demonstrate that GLAST is the most ubiquitous glutamate transporter among the transporter subtypes that have been cloned to date. The GLAST protein content was extremely reduced in variant red cells, low glutamate transport (LGlut) red cells characterized by an inherited remarkable decrease in glutamate transport activity. All LGluT dogs carried a missense mutation of Gly(492) to Ser (G492S) in either the heterozygous or homozygous state. The GLAST protein with G492S mutation was fully functional in glutamate transport in Xenopus oocytes. However, G492S GLAST exhibited a marked decrease in activity after the addition of cycloheximide, while the wild type showed no significant change, indicating that G492S GLAST was unstable compared with the wild-type transporter. Moreover, LGluT dogs, but not normal dogs, heterozygous for the G492S mutation showed a selective decrease in the accumulation of GLAST mRNA from the normal allele. Based on these findings, we conclude that a complicated heterologous combination of G492S mutation and some transcriptional defect contributes to the pathogenesis of the LGluT red cell phenotype.
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Affiliation(s)
- K Sato
- Department of Veterinary Internal Medicine, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
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34
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Kouzai T, Takase K, Suwa Y, Moriyama M, Mou M, Kurata H, Nakamura N. [Renal cell carcinoma in a horseshoe kidney with abdominal aortic aneurysm: a case report]. Hinyokika Kiyo 2000; 46:15-7. [PMID: 10723658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
We herein report a case of renal cell carcinoma in a horseshoe kidney with an abdominal aortic aneurysm in a 69-year-old man. Radiological examinations showed a left renal tumor, horseshoe kidney and abdominal aortic aneurysm. We performed a left radical nephrectomy with the division of the isthmus and artificial graft through an abdominal transperitoneal approach. Histological findings revealed clear cell type renal cell carcinoma without invasion of the capsule or renal pelvis. Only 31 cases of renal cell carcinoma in a horseshoe kidney have been reported in Japan, and our case is the 32nd. No case with abdominal aortic aneurysm has been reported previously. We assume that abdominal aortic aneurysm was associated with renal cell carcinoma by chance in the horseshoe kidney in this case. The arterial and venous supplies vary from case to case. We emphasize that arteriography and venography are very important preoperative procedures.
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Affiliation(s)
- T Kouzai
- Department of Urology, Yokohama Municipal Citizen's Hospital
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35
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Koda H, Yokoo Y, Matsumoto N, Suwa Y, Fukazawa H, Ishida H, Tsuji K, Nukaya H, Kuriyama K. Antagonistic effect of N-methyltyramine on alpha2-adrenoceptor in mice. Jpn J Pharmacol 1999; 81:313-5. [PMID: 10622222 DOI: 10.1254/jjp.81.313] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
We examined the effect of N-methyltyramine (NMT) on alpha2-adrenoceptor. NMT (10(-8)-10(-3) M) inhibited the binding of [3H]p-aminoclonidine to alpha2-adrenoceptor dose-dependently. However, the IC50 value for NMT (5.53 x 10(-6) M) was higher than that for RX821002, an alpha2-adrenoceptor antagonist (1.07 x 10(-8) M). RX821002 (5 mg/kg, i.p.) inhibited hypermotility induced by scopolamine (8 mg/kg, s.c.) in male ddY mice. NMT (20 or 100 mg/kg, i.p.) was found to have a dose-dependent inhibitory effect similar to that of RX821002. These findings indicate that NMT has the properties of an alpha2-adrenoceptor antagonist. However, the affinity of NMT for alpha2-adrenoceptor is weaker than that of RX821002.
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Affiliation(s)
- H Koda
- Products Safety & Alcohol Science Laboratory, Suntory Limited, Mishima-gun, Osaka, Japan
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36
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Yokoo Y, Kohda H, Kusumoto A, Naoki H, Matsumoto N, Amachi T, Suwa Y, Fukazawa H, Ishida H, Tsuji K, Nukaya H. Isolation from beer and structural determination of a potent stimulant of gastrin release. Alcohol Alcohol 1999; 34:161-8. [PMID: 10344776 DOI: 10.1093/alcalc/34.2.161] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Beer was subjected to five successive chromatographic procedures to isolate the gastrin release-inducing activity, guided by bioassay of the fractions in anaesthetized Donryu rats. The procedures were: (1) hydrophobic interaction chromatography (aqueous effluent with an HP20 column); (2) weak cation-exchange chromatography (1 M acetic acid eluate with a CM Sephadex C-25 column); (3) gel filtration (methanol eluate with a Sephadex LH-20 column); (4) same as (2); (5) high-performance liquid chromatography (YMC-Pack ODS-AM with 7% acetonitrile-0.01 M HCl). The active component finally isolated had a specific activity approximately 10000 times higher than that of beer. It was identified by means of mass, 1H- and 13C-nuclear magnetic resonance spectral analyses as N-methyltyramine (NMT). The dose of NMT giving maximal gastrin-releasing activity was 25 microg/kg, and the 50% effective dose was approximately 10 microg/kg on oral administration to rats. NMT was isolated and identified as a gastrin release inducer in beer. Its concentration in beer is sufficient to account for most of the activity of beer.
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Affiliation(s)
- Y Yokoo
- Technical Development Department, Suntory Limited, Mishima-Gun, Osaka, Japan
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37
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Makiyama K, Fukuoka H, Kawamoto K, Suwa Y. [Renal cell carcinoma discovered in a patient with typical acute pyelonephritis: a case report]. Hinyokika Kiyo 1998; 44:645-7. [PMID: 9805669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
A case of renal cell carcinoma that was discovered in a patient with typical acute pyelonephritis is reported. A 62-year-old woman admitted with fever and right flank pain, was diagnosed as having acute pyelonephritis. Intravenous urography showed a compressed renal pelvis and mild dilated calyces, suggesting the existence of a tumor. Computed tomography revealed a parapelvic tumor 6 cm in diameter and a small low-density area separated from the tumor in the renal parenchyma. Selective renal arteriography revealed a typical renal cell carcinoma lesion. The patient underwent right radical nephrectomy, and her postoperative course was uneventful. She has remained free of disease for 7 months.
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Affiliation(s)
- K Makiyama
- Department of Urology, Yokohama Minami Kyosai Hospital
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38
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Suwa Y, Takano Y, Iki M, Takeda M, Asakura T, Noguchi S, Masuda M. Cyclin D1 protein overexpression is related to tumor differentiation, but not to tumor progression or proliferative activity, in transitional cell carcinoma of the bladder. J Urol 1998; 160:897-900. [PMID: 9720584 DOI: 10.1097/00005392-199809010-00085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE We attempted to clarify the significance of cyclin D1 in the development and progression of transitional cell carcinoma of the bladder in humans. MATERIALS AND METHODS Immunohistochemical staining of archival tissue specimens of transitional cell bladder carcinoma obtained from 163 patients was performed by the labeled streptavidin-biotin-peroxidase method. RESULTS Cyclin D1 protein overexpression was observed in 51 of the 163 specimens (31.3%). Cyclin D1 protein overexpression was showed a highly significant inverse correlation with the histological grade of malignancy (p < 0.01). Grade 3 tumors showed a highly significant low incidence of cyclin D1 protein overexpression as compared with grade 2 tumors (p < 0.01). There was no significant correlation between the overexpression of cyclin D1 protein and tumor stage or the Ki-67 labeling index. CONCLUSION Cyclin D1 in transitional cell bladder carcinoma was closely related to tumor differentiation but not to tumor progression. Transitional cell carcinoma of the bladder may utilize another pathway for proliferation that is independent of cyclin D1.
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Affiliation(s)
- Y Suwa
- Department of Urology, Yokohama City University School of Medicine, Yokohama, Japan
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39
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Suwa Y, Takano Y, Iki M, Takeda M, Asakura T, Noguchi S, Masuda M. Cyclin D1 protein overexpression is related to tumor differentiation, but not to tumor progression or proliferative activity, in transitional cell carcinoma of the bladder. J Urol 1998; 160:897-900. [PMID: 9720584 DOI: 10.1016/s0022-5347(01)62829-5] [Citation(s) in RCA: 17] [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] [Indexed: 10/25/2022]
Abstract
PURPOSE We attempted to clarify the significance of cyclin D1 in the development and progression of transitional cell carcinoma of the bladder in humans. MATERIALS AND METHODS Immunohistochemical staining of archival tissue specimens of transitional cell bladder carcinoma obtained from 163 patients was performed by the labeled streptavidin-biotin-peroxidase method. RESULTS Cyclin D1 protein overexpression was observed in 51 of the 163 specimens (31.3%). Cyclin D1 protein overexpression was showed a highly significant inverse correlation with the histological grade of malignancy (p < 0.01). Grade 3 tumors showed a highly significant low incidence of cyclin D1 protein overexpression as compared with grade 2 tumors (p < 0.01). There was no significant correlation between the overexpression of cyclin D1 protein and tumor stage or the Ki-67 labeling index. CONCLUSION Cyclin D1 in transitional cell bladder carcinoma was closely related to tumor differentiation but not to tumor progression. Transitional cell carcinoma of the bladder may utilize another pathway for proliferation that is independent of cyclin D1.
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Affiliation(s)
- Y Suwa
- Department of Urology, Yokohama City University School of Medicine, Yokohama, Japan
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40
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Makiyama K, Fukuoka H, Kawamoto K, Suwa Y. [Surgical removal of adrenal hemangioma after five years of follow-up: a case report]. Hinyokika Kiyo 1998; 44:579-81. [PMID: 9783194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
A case of adrenal hemangioma is reported. A 2.5 x 2.5 cm right adrenal tumor was discovered incidentally in a 61-year-old woman by computed tomography in October 1992. Hormonal levels were within the normal ranges, and the patient was followed for five years under a diagnosis of non-functioning adrenal tumor. The tumor enlarged slowly to 4.6 x 4.2 cm. Then the tumor was removed surgically and the pathological examination revealed adrenal cavernous hemangioma.
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Affiliation(s)
- K Makiyama
- Department of Urology, Yokohama-Minami-Kyosai Hospital
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41
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Sakabe K, Okuma M, Kazuno M, Yamaguchi T, Yoshida T, Furuya H, Kayama F, Suwa Y, Fujii W, Fresa KL. Estrogenic xenobiotics affect the intracellular activation signal in mitogen-induced human peripheral blood lymphocytes: immunotoxicological impact. Int J Immunopharmacol 1998; 20:205-12. [PMID: 9730256 DOI: 10.1016/s0192-0561(98)00030-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The present study was an attempt to elucidate the effect of estrogenic xenobiotics on the proliferation of mitogen-stimulated human peripheral blood lymphocyte (PBL). Our findings follow: (a) the proliferation of PBL in response to phytohemagglutinin (PHA) was mediated by protein kinase C activity, but estrogenic xenobiotics had a strong inhibitory effect on protein kinase C activity of PHA-stimulated PBL; (b) cytoplasmic extracts from PHA-stimulated PBL greatly activated DNA replication, but estrogenic xenobiotics had a strong inhibitory effect on these activities. The results suggest that the cytoplasmic signal-generating system in mitogen-treated PBL is inhibited by estrogenic xenobiotics, and that the defect occurs at all stages in the sequence of events leading to DNA synthesis and cell proliferation.
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Affiliation(s)
- K Sakabe
- Department of Anatomy, Tokai University School of Medicine, Isehara, Kanagawa, Japan.
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42
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Suwa Y, Takano Y, Iki M, Asakura T, Noguchi S, Masuda M. Prognostic significance of Ki-67 expression in transitional cell bladder carcinoma after radical cystectomy. Pathol Res Pract 1997; 193:551-6. [PMID: 9406248 DOI: 10.1016/s0344-0338(97)80013-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We evaluated the prognostic significance of the Ki-67 labeling index (Ki-67 LI) in 75 patients with transitional cell carcinoma of the bladder who underwent radical cystectomy. Immunohistochemical staining of archival material was performed by the streptavidin-biotin method. Univariate survival analysis showed that Ki-67 LI (p < 0.001), histologic grade (p < 0.05), tumor stage (p < 0.001) and the number of positive lymph nodes (p < 0.001) significantly correlated with prognosis. Multivariate survival analysis indicated that the Ki-67 LI (p < 0.05), histologic grade (p < 0.01), tumor stage (p < 0.01), presence of lymph node metastases (p < 0.05) and use of neo-adjuvant therapy (p < 0.05) had independent prognostic value. The Ki-67 LI is an independent prognostic factor for patients with transitional cell bladder cancer treated by radical cystectomy.
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Affiliation(s)
- Y Suwa
- Department of Urology, Yokohama City University School of Medicine, Kanagawa-ken, Japan
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43
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Abstract
In vitro bone formation by cells derived from adult rabbit femurs was investigated on or in several substrates with small porous hydroxyapatite granules (HAGs). When the bone fragments were cultured in HAG-packed glass tubes, which were inclined (5 degrees -30 degrees ) and rotated 90 degrees per day after one week of culture, thin lamellar tissues were newly formed in narrow spaces among the HAGs. By 11 days of culture, these tissues had been mineralized except for their periphery and had well developed collagen bundles and several monolayer cells. Some cells resided in bone lacuna-like spaces. By contrast, mineralization was negligible in 6-week cultures on two-dimensional glass and polystyrene plates with or without two-dimensionally arranged HAGs on their surfaces and in three-dimensional collagen gels with or without HAGs in spite of active cell proliferation. These results suggest that osteogenesis is accelerated in a specific three-dimensional constitution of extracellular matrix and/or under the effects of mechanical forces for the new tissue and that bioactive HAGs offer favorable three-dimensional spaces for osteogenic tissue formation.
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Affiliation(s)
- N Kawai
- Department of Anatomy, Aichi Medical University, Japan
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44
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Asakura T, Takano Y, Iki M, Suwa Y, Noguchi S, Kubota Y, Masuda M. Prognostic value of Ki-67 for recurrence and progression of superficial bladder cancer. J Urol 1997; 158:385-8. [PMID: 9224308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE We retrospectively reviewed 104 cases of superficial bladder cancer to ascertain whether the Ki-67 labeling index predicts recurrence and progression. MATERIALS AND METHODS Archival specimens from superficial bladder cancer cases were immunostained with Ki-67. RESULTS The recurrence rate was significantly higher in cases with a Ki-67 labeling index of 5.35 or greater than in those with a value less than 5.35 (p < 0.001). The recurrence rate at 2 years was 70% in cases with a Ki-67 labeling index of 5.35 or greater and 22% in those with an index less than 5.35 (p < 0.001). Using multivariate analysis the index predicted recurrence of bladder cancer (p < 0.005). Median Ki-67 labeling index in cases with progression was significantly higher than in those without progression (p < 0.01). CONCLUSIONS The Ki-67 labeling index is an independent predictive factor for recurrence of superficial bladder cancer.
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Affiliation(s)
- T Asakura
- Department of Urology, Yokohama City University School of Medicine, Japan
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45
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Sasabe T, Suwa Y, Kawamura T, Aoki T. [Cataracts occur in patients with atopic dermatitis when the serum IgE increases]. Nippon Ganka Gakkai Zasshi 1997; 101:389-92. [PMID: 9170843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The serum-IgE (sIgE) levels of eight patients with cataract complicated by atopic dermatitis (atopic cataract) who had undergone cataract surgery were reported. Five of them were diagnosed as having cataract the first visit to our eye clinic. The other three cases did not show cataract at the first visit but developed it later. The average sIgE of the five cases with cataract was 25,478 +/- 15,936 (mean +/- standard deviation) iu/ml whereas that of the latter three cases without cataract, at the first visit was 4,638 +/- 1,810 iu/ml. The average sIgE of these three cases when their cataracts were diagnosed first went up to 13,210 +/- 5,574 iu/ml. These results suggested that a high level of sIgE may be a warning of the appearance of atopic cataract.
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Affiliation(s)
- T Sasabe
- Department of Ophthalmology, Usaka Prefectural Habikino Hospital, Japan
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46
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Abstract
Fresh marrow cells were obtained from the femora Fischer rats and cultured in a medium containing 15% fetal calf serum (FCS) to leach confluent. After trypsinization, cells were subcultured at a cell density of 100 x 10(3)/35 mm well in the presence of FCS, 10 mM beta-glycerophosphate, 82 micrograms/mL ascorbic acid phosphate, and 10(-8)M dexamethasone (Dex). Osteoblastic cells and microscopic mineralized nodules began to appear at about 1 week after the subculture, and at 2 weeks many macroscopic nodules that showed high alkaline phosphatase activity (ALP) and appearance of bone Gla protein (BGP) mRNA were evident. As demonstrated by in situ hybridization, the mRNA was manifested by cuboid-shaped cells (osteoblastic cells). X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) showed the mineralization of fine crystals of hydroxyapatite comparable to natural rat bone mineral. In contrast to these findings, subculture done under the same conditions except for the lack of Dex did not show mineralized nodules, nor did they show the osteoblastic phenotype expression. These analyses indicate that Dex-induced mineralization using rat bone marrow cell culture is an in vitro counterpart of bone formed in vivo. Such a culture is useful for investigating materials/ osteogenic cells interactions.
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Affiliation(s)
- H Ohgushi
- Department of Orthopedics, Nara Medical University, Japan
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47
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Abstract
Fresh marrow cells were obtained from the femora Fischer rats and cultured in a medium containing 15% fetal calf serum (FCS) to leach confluent. After trypsinization, cells were subcultured at a cell density of 100 x 10(3)/35 mm well in the presence of FCS, 10 mM beta-glycerophosphate, 82 micrograms/mL ascorbic acid phosphate, and 10(-8)M dexamethasone (Dex). Osteoblastic cells and microscopic mineralized nodules began to appear at about 1 week after the subculture, and at 2 weeks many macroscopic nodules that showed high alkaline phosphatase activity (ALP) and appearance of bone Gla protein (BGP) mRNA were evident. As demonstrated by in situ hybridization, the mRNA was manifested by cuboid-shaped cells (osteoblastic cells). X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) showed the mineralization of fine crystals of hydroxyapatite comparable to natural rat bone mineral. In contrast to these findings, subculture done under the same conditions except for the lack of Dex did not show mineralized nodules, nor did they show the osteoblastic phenotype expression. These analyses indicate that Dex-induced mineralization using rat bone marrow cell culture is an in vitro counterpart of bone formed in vivo. Such a culture is useful for investigating materials/ osteogenic cells interactions.
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Affiliation(s)
- H Ohgushi
- Department of Orthopedics, Nara Medical University, Japan
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48
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Makiyama K, Fukuoka H, Ikeda I, Suwa Y, Sekiguchi Y, Kawakami S, Sakanishi S. [Endometrioid adenocarcinoma of the prostate: a case report]. Hinyokika Kiyo 1997; 43:153-6. [PMID: 9086354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A 69-year-old man was referred to our department with gross hematuria. Magnetic resonance imaging revealed the tumor directly invading the rectum. Biopsy of the tumor by transurethral resection demonstrated endometrioid adenocarcinoma of the prostate. Serum prostate specific antigen (PSA) level was normal. Because the tumor did not respond to hormonal therapy for a month, radical prostatectomy combined with rectal amputation was performed. Immunohistochemically, carcinoembryonic antigen was detected but PSA and prostatic acid phosphatase were not.
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Affiliation(s)
- K Makiyama
- Department of Urology, Yokohama Minami Kyousai Hospital
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49
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Abstract
Fresh marrow cells were obtained from the femora Fischer rats and cultured in a medium containing 15% fetal calf serum (FCS) to leach confluent. After trypsinization, cells were subcultured at a cell density of 100 x 10(3)/35 mm well in the presence of FCS, 10 mM beta-glycerophosphate, 82 micrograms/mL ascorbic acid phosphate, and 10(-8)M dexamethasone (Dex). Osteoblastic cells and microscopic mineralized nodules began to appear at about 1 week after the subculture, and at 2 weeks many macroscopic nodules that showed high alkaline phosphatase activity (ALP) and appearance of bone Gla protein (BGP) mRNA were evident. As demonstrated by in situ hybridization, the mRNA was manifested by cuboid-shaped cells (osteoblastic cells). X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) showed the mineralization of fine crystals of hydroxyapatite comparable to natural rat bone mineral. In contrast to these findings, subculture done under the same conditions except for the lack of Dex did not show mineralized nodules, nor did they show the osteoblastic phenotype expression. These analyses indicate that Dex-induced mineralization using rat bone marrow cell culture is an in vitro counterpart of bone formed in vivo. Such a culture is useful for investigating materials/ osteogenic cells interactions.
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Affiliation(s)
- H Ohgushi
- Department of Orthopedics, Nara Medical University, Japan
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50
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Kamimura H, Matsuno S, Suwa Y, Ushio H. Occurrence of d-Wave Pairing in the Phonon-Mediated Mechanism of High Temperature Superconductivity in Cuprates. Phys Rev Lett 1996; 77:723-726. [PMID: 10062886 DOI: 10.1103/physrevlett.77.723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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