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Takamura T, Koyasu S, Sugimoto A, Yamamoto T, Nakamoto Y. Hyalinizing Clear Cell Carcinoma in the Sphenoid Sinus. Clin Nucl Med 2024; 49:287-288. [PMID: 38170933 DOI: 10.1097/rlu.0000000000005017] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
ABSTRACT A 39-year-old man presented with a 1-month history of headaches. Imaging revealed a mass with extensive destruction. T2-weighted imaging displayed mixture of low and sponge-like high intensities and also dark area, with FDG PET/CT showing uneven but intense accumulation. Biopsy confirmed EWSR1 rearrangement, and hyalinizing clear cell carcinoma (HCCC) was diagnosed. HCCC, recently renamed from clear cell carcinoma in the fifth edition of the World Health Organization Classification of Head and Neck Tumors, is a rare tumor. This case describes the features of T2-weighted imaging and FDG PET patterns in HCCC, possibly contributing to their consideration in the differential diagnosis.
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Affiliation(s)
| | - Sho Koyasu
- From the Departments of Diagnostic Imaging and Nuclear Medicine
| | - Akihiko Sugimoto
- Diagnostic Pathology, Graduate School of Medicine, Kyoto University
| | | | - Yuji Nakamoto
- From the Departments of Diagnostic Imaging and Nuclear Medicine
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2
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Takamura T, Motosugi U, Ogiwara M, Sasaki Y, Glaser KJ, Ehman RL, Kinouchi H, Onishi H. Relationship between Shear Stiffness Measured by MR Elastography and Perfusion Metrics Measured by Perfusion CT of Meningiomas. AJNR Am J Neuroradiol 2021; 42:1216-1222. [PMID: 33985944 DOI: 10.3174/ajnr.a7117] [Citation(s) in RCA: 6] [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] [Received: 06/20/2020] [Accepted: 01/10/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE When managing meningiomas, intraoperative tumor consistency and histologic subtype are indispensable factors influencing operative strategy. The purposes of this study were the following: 1) to investigate the correlation between stiffness assessed with MR elastography and perfusion metrics from perfusion CT, 2) to evaluate whether MR elastography and perfusion CT could predict intraoperative tumor consistency, and 3) to explore the predictive value of stiffness and perfusion metrics in distinguishing among histologic subtypes of meningioma. MATERIALS AND METHODS Mean tumor stiffness and relative perfusion metrics (blood flow, blood volume, and MTT) were calculated (relative to normal brain tissue) for 14 patients with meningiomas who underwent MR elastography and perfusion CT before surgery (cohort 1). Intraoperative tumor consistency was graded by a neurosurgeon in 18 patients (cohort 2, comprising the 14 patients from cohort 1 plus 4 additional patients). The correlation between tumor stiffness and perfusion metrics was evaluated in cohort 1, as was the ability of perfusion metrics to predict intraoperative tumor consistency and discriminate histologic subtypes. Cohort 2 was analyzed for the ability of stiffness to determine intraoperative tumor consistency and histologic subtypes. RESULTS The relative MTT was inversely correlated with stiffness (P = .006). Tumor stiffness was positively correlated with intraoperative tumor consistency (P = .01), while perfusion metrics were not. Relative MTT significantly discriminated transitional meningioma from meningothelial meningioma (P = .04), while stiffness did not significantly differentiate any histologic subtypes. CONCLUSIONS In meningioma, tumor stiffness may be useful to predict intraoperative tumor consistency, while relative MTT may potentially correlate with tumor stiffness and differentiate transitional meningioma from meningothelial meningioma.
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Affiliation(s)
- T Takamura
- From the Department of Radiology (T.T.), Shizuoka General Hospital, Shizuoka, Japan .,Department of Radiology (T.T.), Juntendo University, Tokyo, Japan
| | - U Motosugi
- Department of Radiology (U.M.), Kofu-Kyoritsu Hospital, Yamanashi, Japan
| | - M Ogiwara
- Departments of Neurosurgery (M.O., H.K.)
| | - Y Sasaki
- Radiology (Y.S., H.O.), University of Yamanashi, Yamanashi, Japan
| | - K J Glaser
- Department of Radiology (K.J.G., R.L.E.), Mayo Clinic College of Medicine, Rochester, Minnesota
| | - R L Ehman
- Department of Radiology (K.J.G., R.L.E.), Mayo Clinic College of Medicine, Rochester, Minnesota
| | - H Kinouchi
- Departments of Neurosurgery (M.O., H.K.)
| | - H Onishi
- Radiology (Y.S., H.O.), University of Yamanashi, Yamanashi, Japan
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3
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Horiguchi M, Yamagishi H, Unno K, Takamura T, Tone K, Sakabe S, Maeno K, Izumi D, Seko T, Kasai A. Geriatric nutritional risk index (GNRI) predicts long-term survival and limb events in patients with peripheral artery disease. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2356] [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: 11/12/2022] Open
Abstract
Abstract
Background
Geriatric nutritional risk index (GNRI) was developed as a “nutrition-related” risk index and was reported in different populations as associated with the risk of all-cause and cardiovascular morbidity and mortality.
Purpose
The purpose of this study was to assess the associations of GNRI with mortality and amputation free survival in patients with peripheral artery disease (PAD).
Methods
From January 2011 to June 2016, 295 consecutive patients (73.3±9.2 years; 75.6% male) with PAD undergoing endovascular treatment (EVT) in our hospital were retrospectively examined. The GNRI on admission was calculated as follows: 14.89 × serum albumin (g/dl) + 41.7 × body mass index (BMI)/22. Characteristics and mortality were compared between 2 groups: low GNRI (<92, n=110) with moderate or severe nutritional risk; and high GNRI (≥92, n=185) with no or low nutritional risk.
Results
The median follow up period was 39.4±26.4months. There were 85 deaths (28.8%) and 13 major amputation (4.4%) during the follow-up. Patients in the low-GNRI group were more often higher age, non-ambulatory state, hemodialysis and critical limb ischemia. BMI, serum hemoglobin, albumin, low-density lipoprotein were significantly lower, whereas serum C-reactive protein was significantly higher in the low-GNRI group than the high-GNRI group (P<0.05, respectively). Kaplan–Meier analysis revealed that patients in the low-GNRI group had a significantly lower amputation free survival, compared to those in the high-GNRI group (log-rank test, P<0.001).
Conclusion
The low GNRI is associated with an increased risk of mortality and limb events in patients with PAD.
Amputation-free survival (Kaplan-Meier)
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | | | - K Unno
- Ise City Red Cross Hospital, Ise, Japan
| | | | - K Tone
- Ise City Red Cross Hospital, Ise, Japan
| | - S Sakabe
- Ise City Red Cross Hospital, Ise, Japan
| | - K Maeno
- Ise City Red Cross Hospital, Ise, Japan
| | - D Izumi
- Ise City Red Cross Hospital, Ise, Japan
| | - T Seko
- Ise City Red Cross Hospital, Ise, Japan
| | - A Kasai
- Ise City Red Cross Hospital, Ise, Japan
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Hirota Y, Moriwaki K, Takasaki A, Takamura T, Kurita T, Fujii E, Saito Y, Yamada N, Ito M, Dohi K. Prognostic impacts of prehospital age shock index in patients with acute myocardial infarction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1642] [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: 11/12/2022] Open
Abstract
Abstract
Introduction
Early identification of high-risk patients is the cornerstone of managing patients with acute myocardial infarction (AMI). Age Shock index (ASI; age multiplied by the ratio of heart rate/systolic blood pressure) has been reported to be similar to Global Registry of Acute Coronary Events (GRACE) risk score for predicting mortality in patients with AMI. However, prognostic impacts of prehospital ASI (pre-ASI) in patients with AMI remain unknown.
Methods
We analyzed of 2578 AMI patients who underwent emergency primary percutaneous coronary intervention (PCI) from January 2013 to March 2018, using data from Mie ACS Registry, a prospective and multicenter registry in Japan. Pre-ASI was recorded by emergency medical services at the first contact with the patient before admission, and in-hospital ASI (in-ASI) was recorded prior to PCI at admission. The primary end point was defined as all-cause death.
Results
Median follow-up duration was 753 days (497–838 days). All-cause death was observed in 230 (8.9%) patients. The ROC-AUC (Receiver operating characteristic-area under the curve) of pre-ASI for all- cause death was 0.76 (p<0.001), which was similar to that of in-ASI (0.78, p<0.001) (p=0.25 for pre-ASI versus in-ASI). The cut-off value for pre-ASI and in-ASI was for the prediction of all-cause death was both 45 with a sensitivity of 0.66 and a specificity of 0.78, with a sensitivity of 0.68 and a specificity of 0.76 respectively. According to the Kaplan-Meier survival analysis by combination of pre-ASI≥45 and in-ASI≥45, the patients with pre-ASI≥45 and in-ASI≥45 showed significantly higher all-cause mortality compared to the patients with pre-ASI≥45 and in-ASI<45, the patients with pre-ASI<45 and in-ASI≥45, and the patients with pre-ASI<45 and in-ASI<45 (p<0.001) (Figure). The addition of pre-ASI≥45 to in-ASI≥45 (global chi-squared score: 205) resulted in a significantly increased global chi-squared score, suggesting the incremental prognostic value of pre-ASI (267; p<0.001). Multivariate cox proportional hazard regression analysis for all-cause mortality demonstrated pre-ASI≥45 was a significant independent predictor (HR: 4.86; 95% CI: 3.36 to 7.02, p<0.001). It was strongest predictor compared to left ventricular ejection fraction<40% (HR: 2.45; 95% CI 1.67 to 3.58, p<0.001), hemodialysis (HR: 3.45; 95% CI 1.66 to 7.17, p=0.001), door to balloon time>90 minutes (HR: 1.66; 95% CI 1.18 to 2.34, p=0.004).
Conclusions
High pre-ASI predict increase mortality and assessment of both high pre-ASI and high in-ASI enhance risk stratification in patients with AMI. Early recognizing high pre-ASI may help us make better strategies and improve prognosis for high-risk AMI patients.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Y Hirota
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - K Moriwaki
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - A Takasaki
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - T Takamura
- Ise City Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - T Kurita
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - E Fujii
- Nabari City Hospital, Department of Cardiology, Nabari, Japan
| | - Y Saito
- Suzuka Kaisei Hospital, Department of Cardiology, suzuka, Japan
| | - N Yamada
- Kuwana City Medical Center, Department of Cardiology, Kuwana, Japan
| | - M Ito
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - K Dohi
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
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Sakabe S, Maeno K, Yamagishi H, Unno K, Mori T, Tone K, Horiguchi M, Takamura T, Izumi D, Seko T, Kasai A. P179 Alterations of resting heart rate and heart rate viability after cryoballon ablation in the patients with paroxysmal atrial fibrillation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.060] [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
While it is generally accepted that cardiac autonomic nervous system (CANS) plays an important role in atrial fibrillation (AF) and pulmonary vein isolation (PVI) by radiofrequency catheter ablation modifies the ganglionated plexi (GP), the alterations of CANS after PVI are not clarified.
Purpose
The objective of this study was to investigate the alteration of CANS after conventional cryoballoon ablation (CBA) by using a non-invasive examination method of measuring resting heart rate (R-HR) and coefficient of variation of R-R interval (CVR-R) which is a representative parameter of heart rate viability. CVR-R reflects R-R interval variation affected by respiration. It is calculated from the R-R interval of consecutive 100 heart beats of sinus rhythm recorded at rest. Declines of CVR-R indicate the parasympathetic dysfunction and the normal range of it varies depend on the age. As age increases from 30s to 70s, the average value of CVR-R decreases from 4.0% to 2.4%.
Methods
Consecutive patients of paroxysmal AF treated with initial CBA in our institute participated. Subjects were limited to the patients who maintained sinus rhythm through the study and whose prescription had not been changed after procedure. All patients recorded 12-lead electrocardiogram to measure R-HR and CVR-R before and the day after the procedure. We compared R-HR and CVR-R of all patients before and after CBA. And in addition, we compared them in each of two groups whose pre-procedural H-RH were under 50 bpm (Group-U50) and over 70 bpm (Group-O70). All procedures were performed with second generation 28mm cryoballoon (CB)s under the conscious sedation with Dexmedetomidine. CB temperature was down to a minimum of -60°C and target application time was 180 seconds.
Results
In the procedure of all 105 patients (male gender, 54%; age, 66.9 ± 10.4years; CHADS2score, 1.15 ± 1.04; diabetes mellitus,14%; beta-blocker therapy, 16%), 1 of touch-up for PVI, 6 of supra vena cava isolation and 21 of cavotricuspid isthmus linear ablations with radiofrequency catheter were added. In all patients, R-HR increased from 58.9 ± 9.2bpm to 72.4 ± 9.5bpm (P < 0.01) and CVR-R decreased from 2.36 ± 1.08% to 1.24 ± 0.68% (P < 0.01), respectively. In Group-U50 (n = 14; male gender 64%; age 67.6 ± 12.4 years), R-HR increased from 47.1 ± 2.1bpm to 64.4 ± 7.9bpm (P < 0.01) and CVR-R decreased from 2.58 ± 1.59% to 1.34 ± 0.82% (P < 0.01), respectively. In Group-O70 (n = 17; male gender 43%; age 67.4 ± 12.6 years), R-HR increased from 73.7 ± 2.8bpm to 81.8 ± 7.4bpm (P < 0.01) and CVR-R decreased from 2.33 ± 0.94% to 1.14 ± 0.52% (P < 0.01), respectively. Values of CVR-R before and after CBA showed no significant difference between the two groups.
Conclusions
After CBA, R-HR increment and CVR-R decrement were significantly observed. CVR-R was halved regardless of pre–procedural R-HR. Damages to GP by CBA would be reflected as denervation of vagus nerves in CANS. R-HR increase might be associated with parasympathetic suppression of CANS.
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Affiliation(s)
- S Sakabe
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - K Maeno
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - H Yamagishi
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - K Unno
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - T Mori
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - K Tone
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - M Horiguchi
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - T Takamura
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - D Izumi
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - T Seko
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - A Kasai
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
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Kobayashi T, Piao W, Takamura T, Kori H, Miyachi H, Kitano S, Iwamoto Y, Yamada M, Imayoshi I, Shioda S, Ballabio A, Kageyama R. Enhanced lysosomal degradation maintains the quiescent state of neural stem cells. Nat Commun 2019; 10:5446. [PMID: 31784517 PMCID: PMC6884460 DOI: 10.1038/s41467-019-13203-4] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 10/28/2019] [Indexed: 01/08/2023] Open
Abstract
Quiescence is important for sustaining neural stem cells (NSCs) in the adult brain over the lifespan. Lysosomes are digestive organelles that degrade membrane receptors after they undergo endolysosomal membrane trafficking. Enlarged lysosomes are present in quiescent NSCs (qNSCs) in the subventricular zone of the mouse brain, but it remains largely unknown how lysosomal function is involved in the quiescence. Here we show that qNSCs exhibit higher lysosomal activity and degrade activated EGF receptor by endolysosomal degradation more rapidly than proliferating NSCs. Chemical inhibition of lysosomal degradation in qNSCs prevents degradation of signaling receptors resulting in exit from quiescence. Furthermore, conditional knockout of TFEB, a lysosomal master regulator, delays NSCs quiescence in vitro and increases NSC proliferation in the dentate gyrus of mice. Taken together, our results demonstrate that enhanced lysosomal degradation is an important regulator of qNSC maintenance. It remains unclear why quiescent neural stem cells (qNSCs) in the subventricular zone of the mouse brain have enlarged lysosomes. Here, authors demonstrate that qNSCs exhibit higher lysosomal activity and degrade activated EGF receptor by endolysosomal degradation more rapidly than proliferating NSCs, which prevents the NSC exit from quiescence.
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Affiliation(s)
- Taeko Kobayashi
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan. .,Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan. .,Graduate School of Biostudies, Kyoto University, Kyoto, 606-8501, Japan.
| | - Wenhui Piao
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan.,Graduate School of Biostudies, Kyoto University, Kyoto, 606-8501, Japan
| | - Toshiya Takamura
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| | - Hiroshi Kori
- Department of Complexity Science and Engineering, University of Tokyo, Tokyo, 277-8561, Japan
| | - Hitoshi Miyachi
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| | - Satsuki Kitano
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| | - Yumiko Iwamoto
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| | - Mayumi Yamada
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan.,Graduate School of Biostudies, Kyoto University, Kyoto, 606-8501, Japan.,Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto, 606-8501, Japan
| | - Itaru Imayoshi
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan.,Graduate School of Biostudies, Kyoto University, Kyoto, 606-8501, Japan.,Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto, 606-8501, Japan
| | - Seiji Shioda
- Peptide Drug Innovation, Global Research Center for Innovative Life Science (GRIL), Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Andrea Ballabio
- Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078, Pozzuoli, NA, Italy
| | - Ryoichiro Kageyama
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan. .,Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan. .,Graduate School of Biostudies, Kyoto University, Kyoto, 606-8501, Japan. .,Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto, 606-8501, Japan.
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Shiraishi T, Nakamura T, Takamura T, Oishi M, Yamada T, Yamada Y, Ueda T, Fujihara A, Hongo F, Okihara K, Ukimura O. Less nephrotoxicity of paclitaxel and ifosfamide plus nedaplatin for refractory or relapsed germ cell tumors in patients with impaired renal function. Int J Urol 2019; 27:134-139. [PMID: 31701563 DOI: 10.1111/iju.14147] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Accepted: 10/06/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To determine the safety and efficacy of the combined regimen of paclitaxel and ifosfamide plus nedaplatin for patients with refractory or relapsed germ cell tumors and impaired renal function. METHODS Of a total of 68 patients who received paclitaxel, ifosfamide and nedaplatin chemotherapy for germ cell tumors, those with an estimated glomerular filtration rate <60 mL/min/1.73 m2 before paclitaxel, ifosfamide and nedaplatin treatment were defined as having renal dysfunction. The combination chemotherapy regimen included paclitaxel (210 mg/m2 on day 1) and ifosfamide (1.2 g/m2 on days 2-6) with nedaplatin (100 mg/m2 on day 2) on a 3-week cycle. RESULTS A total of 10 patients had renal dysfunction with a median estimated glomerular filtration rate of 49.97 mg/mL/1.73 m2 (range 31.7-57.5 mg/mL/1.73 m2 ). Paclitaxel, ifosfamide and nedaplatin chemotherapy was given as second-line therapy in four patients, third-line in four and fourth-line or later in two. Patients with impaired renal function received pretreatment of a median of 5.5 cycles of platinum-based chemotherapy (range 3-11 cycles) with a median cisplatin dose of 550 mg/m2 . The patients were given two to six cycles of paclitaxel, ifosfamide and nedaplatin chemotherapy with no dose reduction, with an overall response rate of 60%. Chemotherapy-induced kidney dysfunction was not observed in any patient with decreased renal function. Furthermore, there was no difference in the frequency of adverse events between patients with renal dysfunction (estimated glomerular filtration rate <60 mL/min/1.73 m2 ) and those with normal renal function (estimated glomerular filtration rate ≥60 mL/min/1.73 m2 ). CONCLUSIONS Paclitaxel, ifosfamide and nedaplatin chemotherapy can be considered a safe and effective regimen that results in less nephrotoxicity in germ cell tumor patients with renal dysfunction.
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Affiliation(s)
- Takumi Shiraishi
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Terukazu Nakamura
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Department of Urology, Saiseikai Imperial Gift Foundation, Saiseikai Suita Hospital, Osaka, Japan
| | - Toshiya Takamura
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masakatsu Oishi
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takeshi Yamada
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yasuhiro Yamada
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takashi Ueda
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Atsuko Fujihara
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Fumiya Hongo
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Koji Okihara
- Department of Urology, North Medical Center, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osamu Ukimura
- Department of Urology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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8
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Sakabe S, Unno K, Mori T, Horiguchi M, Takamura T, Tone K, Izumi D, Maeno K, Seko T, Kasai A. P1917Can cryoballoon ablation produce alterations in cardiac and extra-cardiac autonomic nervous system in patients with atrial fibrillation? Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0664] [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
Cryoballoon ablation (CBA) during pulmonary vein isolation (PVI) for atrial fibrillation (AF) can cause direct thermal injury to structures adjacent to the left atrium, including the periatrial ganglionated plexi (GP). In contrast, it has not been clarified whether cardiac autonomic nervous system (CANS) modification by CBA could indirectly affect extra-CANS.
Purpose
This study was aimed to investigate the impact of CBA on extra-CANS as well as CANS in AF patients.
Methods
Ninety-three Consecutive patients who underwent initial CBA in our institute were enrolled. Among them, 64 subjects (age 67±9 years; male gender 52%; CHADS2 score 1.2±1.0; diabetes mellitus 16%; β-blocker therapy 23%) had paroxysmal AF (G-P) and 29 (age 66±7 years; male gender 90%; CHADS2 score 1.3±1.0; diabetes mellitus 24%; β-blocker therapy 34%) had sustained AF (G-S). In G-P, resting sinus heart rate (R-HR) and coefficient of variation of the R-R intervals (CVR-R) during sinus rhythm were measured in resting 12-lead electrocardiogram before and after CBA as an index of CANS. Decrease in CVR-R after PVI reflects the vagal nerve injury by the procedure. Pupil movement reflects the autonomic nervous function. In both groups, pupillary light reflex, as an indicator of extra-CANS activity, was measured by infrared videopupillography (Iriscorder® Dual C10641, Hamamatsu Photonics, Hamamatsu, Japan) before and after CBA. Velocity of dilatation (VD) is related to sympathetic function, and velocity of contraction (VC) is associated with the balance between sympathetic and vagal tone. All CBA were treated with second generation 28mm cryoballoons (CB). CB temperature was down to a minimum of −60°C and target application time was 180 seconds.
Results
Complete PVI was achieved in all patients, in which touch-up radiofrequency ablation for the PVI was required in 4 cases of G-S. In G-P, R-HR significantly increased (59.2±9.2bpm to 72.5±8.3bpm, p<0.01) and CVR-R significantly decreased (2.32±1.1% to 1.61±0.61%, p<0.01) after CBA, while VC and VD did not significantly change (3.83±1.03mm2/sec to 3.64±0.96mm2/sec and 1.83±0.62mm2/sec to 1.86±0.84mm2/sec, respectively). In G-S, there were not significant changes between before and after CBA in VC and VD (3.77±0.80mm2/sec to 3.71±0.99mm2/sec and 1.81±0.49mm2/sec to 1.80±0.59mm2/sec, respectively). There were no significant differences between two groups in VC and VD before the procedure.
Conclusion
These results suggest that CBA seems to result in local parasympathetic denervation due to damage of adjacent structures including ganglionated plexi while the alteration of CANS by CBA does not seem to efferently affect extra-CANS.
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Affiliation(s)
- S Sakabe
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - K Unno
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - T Mori
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - M Horiguchi
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - T Takamura
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - K Tone
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - D Izumi
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - K Maeno
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - T Seko
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - A Kasai
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
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9
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Sakabe S, Ito H, Unno K, Goto I, Horiguchi M, Takamura T, Tone K, Maeno K, Izumi D, Seko T, Kasai A. P5774Is gastroparesis after cryoballoon ablation only due to periesophageal vagal nerve injury? Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5774] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- S Sakabe
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - H Ito
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - K Unno
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - I Goto
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - M Horiguchi
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - T Takamura
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - K Tone
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - K Maeno
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - D Izumi
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - T Seko
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
| | - A Kasai
- Ise Red Cross Hospital, Department of Cardiology, Ise, Japan
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10
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Takamura T, Horinaka M, Yasuda S, Toriyama S, Aono Y, Sowa Y, Miki T, Ukimura O, Sakai T. FGFR inhibitor BGJ398 and HDAC inhibitor OBP-801 synergistically inhibit cell growth and induce apoptosis in bladder cancer cells. Oncol Rep 2017; 39:627-632. [PMID: 29207153 DOI: 10.3892/or.2017.6127] [Citation(s) in RCA: 5] [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: 06/07/2017] [Accepted: 11/06/2017] [Indexed: 11/05/2022] Open
Abstract
In advanced bladder cancer, cisplatin-based chemotherapy has been the standard treatment for many years, but there are many problems in terms of side-effects. Recently, a number of clinical trials using molecular-targeted agents have been conducted, and new therapies are expected that could replace conventional cytotoxic chemotherapy. We herein report that concurrent treatment with fibroblast growth factor receptor (FGFR) inhibitor BGJ398 and the novel histone deacetylase (HDAC) inhibitor OBP-801/YM753/spiruchostatin A synergistically inhibited cell growth and markedly induced apoptosis in high-grade bladder cancer cells. This combination activated caspase-3, -8 and -9, and the pan-caspase inhibitor zVAD-fmk significantly reduced the apoptotic response to the combined treatment. The combination upregulated the expression of Bim, one of the pro-apoptotic molecules. In the present study, Bim siRNA efficiently reduced apoptosis induced by the co-treatment of BGJ398 and OBP-801. Therefore, the apoptosis induced by the combination was shown to be at least partially dependent on Bim. Taken together, these results suggest that the combination of BGJ398 and OBP-801 is a novel high potential therapeutic strategy for muscle-invasive bladder cancer.
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Affiliation(s)
- Toshiya Takamura
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mano Horinaka
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shusuke Yasuda
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Seijiro Toriyama
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuichi Aono
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoshihiro Sowa
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tsuneharu Miki
- Department of Urology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osamu Ukimura
- Department of Urology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshiyuki Sakai
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
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11
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Usui S, Takamura M, Misu H, Murai H, Furusho H, Takashima S, Takamura T, Oto I, Kaneko S. P1452Endogenous selenoprotein P mediates pressure overload-induced cardiac hypertrophy. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1452] [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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12
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Sakurai M, Yoshita K, Nakamura K, Miura K, Takamura T, Nagasawa SY, Morikawa Y, Kido T, Naruse Y, Nogawa K, Suwazono Y, Sasaki S, Ishizaki M, Nakagawa H. Skipping breakfast and 5-year changes in body mass index and waist circumference in Japanese men and women. Obes Sci Pract 2017; 3:162-170. [PMID: 28702211 PMCID: PMC5478803 DOI: 10.1002/osp4.106] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 03/06/2017] [Accepted: 03/11/2017] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE This study investigated the relationship between frequency of skipping breakfast and annual changes in body mass index (BMI) and waist circumference (WC). METHODS The participants were 4,430 factory employees. BMI and WC were measured repeatedly at annual medical examinations over a 5-year period. The association between frequency of skipping breakfast at the baseline examination and annual changes in anthropometric indices was evaluated using the generalized estimating equation method. RESULTS The mean (standard deviation) BMI was 23.3 (3.0) kg m-2 for men and 21.9 (3.6) kg m-2 for women; and the mean WC was 82.6 (8.7) cm for men and 77.8 (9.8) cm for women. During the follow-up period, mean BMI increased by 0.2 kg m-2 for men and women, and mean WC increased by 1.1 cm for men and 1.0 cm for women. The annual change in the BMI of men who skipped breakfast four to six times per week was 0.061 kg m-2 higher, and that of those who skipped breakfast seven times per week was 0.046 kg m-2 higher, compared with those who did not skip breakfast. Annual changes in the WC of male participants who skipped breakfast seven times per week was 0.248 cm higher than that of those who did not skip breakfast. Skipping breakfast was not associated with changes in BMI or WC in women. CONCLUSIONS Skipping breakfast was closely associated with annual changes in BMI and WC among men, and eating breakfast more than four times per week may prevent the excessive body weight gain associated with skipping breakfast.
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Affiliation(s)
- M Sakurai
- Department of Social and Environmental Medicine Kanazawa Medical University Uchinada Japan.,Health Evaluation Center Kanazawa Medical University Hospital Uchinada Japan
| | - K Yoshita
- Department of Food Science and Nutrition, Graduate School of Human Life Science Osaka City University Osaka Japan
| | - K Nakamura
- Department of Public Health Hokkaido University Graduate School of Medicine Sapporo Japan
| | - K Miura
- Department of Health Science Shiga University of Medical Science Otsu Japan
| | - T Takamura
- Department of Endocrinology and Metabolism Kanazawa University Graduate School of Medical Science Kanazawa Japan
| | - S Y Nagasawa
- Health Evaluation Center Kanazawa Medical University Hospital Uchinada Japan.,Department of Epidemiology and Public Health Kanazawa Medical University Uchinada Japan
| | - Y Morikawa
- Department of Medical Science, School of Nursing Kanazawa Medical University Uchinada Japan
| | - T Kido
- School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences Kanazawa University Kanazawa Japan
| | - Y Naruse
- Department of Social Welfare Toyama College of Welfare ScienceImizu Japan
| | - K Nogawa
- Department of Occupation and Environmental Medicine, Graduate School of Medicine Chiba University Chiba Japan
| | - Y Suwazono
- Department of Occupation and Environmental Medicine, Graduate School of Medicine Chiba University Chiba Japan
| | - S Sasaki
- Department of Social and Preventive Epidemiology, School of Public Health University of Tokyo Tokyo Japan
| | - M Ishizaki
- Department of Social and Environmental Medicine Kanazawa Medical University Uchinada Japan.,Health Evaluation Center Kanazawa Medical University Hospital Uchinada Japan
| | - H Nakagawa
- Medical Research Institute Kanazawa Medical University Uchinada Japan
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13
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Takamura T, Hanakawa T. Clinical utility of resting-state functional connectivity magnetic resonance imaging for mood and cognitive disorders. J Neural Transm (Vienna) 2017; 124:821-839. [PMID: 28337552 DOI: 10.1007/s00702-017-1710-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [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: 12/15/2016] [Accepted: 03/14/2017] [Indexed: 12/15/2022]
Abstract
Although functional magnetic resonance imaging (fMRI) has long been used to assess task-related brain activity in neuropsychiatric disorders, it has not yet become a widely available clinical tool. Resting-state fMRI (rs-fMRI) has been the subject of recent attention in the fields of basic and clinical neuroimaging research. This method enables investigation of the functional organization of the brain and alterations of resting-state networks (RSNs) in patients with neuropsychiatric disorders. Rs-fMRI does not require participants to perform a demanding task, in contrast to task fMRI, which often requires participants to follow complex instructions. Rs-fMRI has a number of advantages over task fMRI for application with neuropsychiatric patients, for example, although applications of task fMR to participants for healthy are easy. However, it is difficult to apply these applications to patients with psychiatric and neurological disorders, because they may have difficulty in performing demanding cognitive task. Here, we review the basic methodology and analysis techniques relevant to clinical studies, and the clinical applications of the technique for examining neuropsychiatric disorders, focusing on mood disorders (major depressive disorder and bipolar disorder) and dementia (Alzheimer's disease and mild cognitive impairment).
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Affiliation(s)
- T Takamura
- Department of Advanced Neuroimaging, Integrative Brain Imaging Center, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - T Hanakawa
- Department of Advanced Neuroimaging, Integrative Brain Imaging Center, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
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14
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Toriyama S, Horinaka M, Yasuda S, Taniguchi T, Aono Y, Takamura T, Morioka Y, Miki T, Ukimura O, Sakai T. A Histone Deacetylase Inhibitor, OBP-801, and Celecoxib Synergistically Inhibit the Cell Growth with Apoptosis via a DR5-Dependent Pathway in Bladder Cancer Cells. Mol Cancer Ther 2016; 15:2066-75. [PMID: 27406983 DOI: 10.1158/1535-7163.mct-16-0010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 06/19/2016] [Indexed: 11/16/2022]
Abstract
The prognosis of muscle-invasive bladder cancer with metastasis is poor. There have been no therapeutic improvements for many years, and an innovative therapy for muscle-invasive bladder cancer has been awaited to replace the conventional cytotoxic chemotherapy. Here, we show a candidate method for the treatment of bladder cancer. The combined treatment with a novel histone deacetylase (HDAC) inhibitor, OBP-801, and celecoxib synergistically inhibited cell growth and markedly induced apoptosis through the caspase-dependent pathway in high-grade bladder cancer cells. Furthermore, the combined treatment induced expression of death receptor 5 (DR5). We identified that knockdown of DR5 by small interfering RNA (siRNA) significantly suppressed apoptosis by the combined treatment. Therefore, we conjectured that the apoptosis induced by OBP-801 and celecoxib is at least partially dependent on DR5. However, it was interesting that the combined treatment drastically suppressed expression of DR5 ligand, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL). These data suggest that there is no involvement of TRAIL in the induction of apoptosis by the combination, regardless of the dependence of DR5. Moreover, xenograft studies using human bladder cancer cells showed that the combined therapy suppressed tumor growth by upregulating expressions of DR5 and Bim. The inhibition of tumor growth was significantly more potent than that of each agent alone, without significant weight loss. This combination therapy provided a greater benefit than monotherapy in vitro and in vivo These data show that the combination therapy with OBP-801 and celecoxib is a potential novel therapeutic strategy for patients with muscle-invasive bladder cancer. Mol Cancer Ther; 15(9); 2066-75. ©2016 AACR.
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Affiliation(s)
- Seijiro Toriyama
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan. Department of Urology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mano Horinaka
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - Shusuke Yasuda
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomoyuki Taniguchi
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuichi Aono
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshiya Takamura
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan. Department of Urology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yukako Morioka
- Department of Urology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tsuneharu Miki
- Department of Urology, Kyoto Prefectural University of Medicine, Kyoto, Japan. Department of Urology, Saiseikai Shiga Hospital, Shiga, Japan
| | - Osamu Ukimura
- Department of Urology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshiyuki Sakai
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Kyoto, Japan
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15
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Gowran A, Kulikova T, Lewis FC, Foldes G, Fuentes L, Viiri LE, Spinelli V, Costa A, Perbellini F, Sid-Otmane C, Bax NAM, Pekkanen-Mattila M, Schiano C, Chaloupka A, Forini F, Sarkozy M, De Jager SCA, Vajen T, Glezeva N, Lee HW, Golovkin A, Kucera T, Musikhina NA, Korzhenkov NP, Santuchi MDEC, Munteanu D, Garcia RG, Ang R, Usui S, Kamilova U, Jumeau C, Aberg M, Kostina DA, Brandt MM, Muntean D, Lindner D, Sadaba R, Bacova B, Nikolov A, Sedmera D, Ryabov V, Neto FP, Lynch M, Portero V, Kui P, Howarth FC, Gualdoni A, Prorok J, Diolaiuti L, Vostarek F, Wagner M, Abela MA, Nebert C, Xiang W, Kloza M, Maslenko A, Grechanyk M, Bhattachariya A, Morawietz H, Babaeva AR, Martinez Sanchez SM, Krychtiuk KA, Starodubova J, Fiorelli S, Rinne P, Ozkaramanli Gur D, Hofbauer T, Starodubova J, Stellos K, Pinon P, Tsoref O, Thaler B, Fraga-Silva RA, Fuijkschot WW, Shaaban MNS, Matthaeus C, Deluyker D, Scardigli M, Zahradnikova A, Dominguez A, Kondrat'eva D, Sosorburam T, Murarikova M, Duerr GD, Griecsova L, Portnichenko VI, Smolina N, Duicu OANAM, Elder JM, Zaglia T, Lorenzon A, Ruperez C, Woudstra L, Suffee N, De Lucia C, Tsoref O, Russell-Hallinan A, Menendez-Montes I, Kapelko VI, Emmens RW, Hetman O, Van Der Laarse WJ, Goncharov S, Adao R, Huisamen B, Sirenko O, Kamilova U, Nassiri I, Tserendavaa SUMIYA, Yushko K, Baldan Martin M, Falcone C, Vigorelli V, Nigro P, Pompilio G, Stepanova O, Valikhov M, Samko A, Masenko V, Tereschenko S, Teoh T, Domenjo-Vila E, Theologou T, Field M, Awad W, Yasin M, Nadal-Ginard B, Ellison-Hughes GM, Hellen N, Vittay O, Harding SE, Gomez-Cid L, Fernandez-Santos ME, Suarez-Sancho S, Plasencia V, Climent A, Sanz-Ruiz R, Hedhammar M, Atienza F, Fernandez-Aviles F, Kiamehr M, Oittinen M, Viiri KM, Kaikkonen M, Aalto-Setala K, Diolaiuti L, Laurino A, Sartiani L, Vona A, Zanardelli M, Cerbai E, Failli P, Hortigon-Vinagre MP, Van Der Heyden M, Burton FL, Smith GL, Watson S, Scigliano M, Tkach S, Alayoubi S, Harding SE, Terracciano CM, Ly HQ, Mauretti A, Van Marion MH, Van Turnhout MC, Van Der Schaft DWJ, Sahlgren CM, Goumans MJ, Bouten CVC, Vuorenpaa H, Penttinen K, Sarkanen R, Ylikomi T, Heinonen T, Aalto-Setala K, Grimaldi V, Aprile M, Esposito R, Maiello C, Soricelli A, Colantuoni V, Costa V, Ciccodicola A, Napoli C, Rowe GC, Johnson K, Arany ZP, Del Monte F, D'aurizio R, Kusmic C, Nicolini G, Baumgart M, Groth M, Ucciferri N, Iervasi G, Pitto L, Pipicz M, Gaspar R, Siska A, Foldesi I, Kiss K, Bencsik P, Thum T, Batkai S, Csont T, Haan JJ, Bosch L, Brans MAD, Van De Weg SM, Deddens JC, Lee SJ, Sluijter JPG, Pasterkamp G, Werner I, Projahn D, Staudt M, Curaj A, Soenmez TT, Simsekyilmaz S, Hackeng TM, Von Hundelshausen P, Koenen RR, Weber C, Liehn EA, Santos-Martinez M, Medina C, Watson C, Mcdonald K, Gilmer J, Ledwidge M, Song SH, Lee MY, Park MH, Choi JC, Ahn JH, Park JS, Oh JH, Choi JH, Lee HC, Cha KS, Hong TJ, Kudryavtsev I, Serebryakova M, Malashicheva A, Shishkova A, Zhiduleva E, Moiseeva O, Durisova M, Blaha M, Melenovsky V, Pirk J, Kautzner J, Petelina TI, Gapon LI, Gorbatenko EA, Potolinskaya YV, Arkhipova EV, Solodenkova KS, Osadchuk MA, Dutra MF, Oliveira FCB, Silva MM, Passos-Silva DG, Goncalves R, Santos RAS, Da Silva RF, Gavrilescu CM, Paraschiv CM, Manea P, Strat LC, Gomez JMG, Merino D, Hurle MA, Nistal JF, Aires A, Cortajarena AL, Villar AV, Abramowitz J, Birnbaumer L, Gourine AV, Tinker A, Takamura M, Takashima S, Inoue O, Misu H, Takamura T, Kaneko S, Alieva TOHIRA, Mougenot N, Dufilho M, Hatem S, Siegbahn A, Kostina AS, Uspensky VE, Moiseeva OM, Kostareva AA, Malashicheva AB, Van Dijk CGM, Chrifi I, Verhaar MC, Duncker DJ, Cheng C, Sturza A, Petrus A, Duicu O, Kiss L, Danila M, Baczko I, Jost N, Gotzhein F, Schon J, Schwarzl M, Hinrichs S, Blankenberg S, Volker U, Hammer E, Westermann D, Martinez-Martinez E, Arrieta V, Fernandez-Celis A, Jimenez-Alfaro L, Melero A, Alvarez-Asiain V, Cachofeiro V, Lopez-Andres N, Tribulova N, Wallukat G, Knezl V, Radosinska J, Barancik M, Tsinlikov I, Tsinlikova I, Nicoloff G, Blazhev A, Pesevski Z, Kvasilova A, Stopkova T, Eckhardt A, Buffinton CM, Nanka O, Kercheva M, Suslova T, Gusakova A, Ryabova T, Markov V, Karpov R, Seemann H, Alcantara TC, Santuchi MDEC, Fonseca SG, Da Silva RF, Barallobre-Barreiro J, Oklu R, Fava M, Baig F, Yin X, Albadawi H, Jahangiri M, Stoughton J, Mayr M, Podliesna SP, Veerman CCV, Verkerk AOV, Klerk MK, Lodder EML, Mengarelli IM, Bezzina CRB, Remme CAR, Takacs H, Polyak A, Morvay N, Lepran I, Tiszlavicz L, Nagy N, Ordog B, Farkas A, Forster T, Varro A, Farkas AS, Jayaprakash P, Parekh K, Ferdous Z, Oz M, Dobrzynski H, Adrian TE, Landi S, Bonzanni M, D'souza A, Boyett M, Bucchi A, Baruscotti M, Difrancesco D, Barbuti A, Kui P, Takacs H, Oravecz K, Hezso T, Polyak A, Levijoki J, Pollesello P, Koskelainen T, Otsomaa L, Farkas AS, Papp JGY, Varro A, Toth A, Acsai K, Dini L, Mazzoni L, Sartiani L, Cerbai E, Mugelli A, Svatunkova J, Sedmera D, Deffge C, Baer C, Weinert S, Braun-Dullaeus RC, Herold J, Cassar AC, Zahra GZ, Pllaha EP, Dingli PD, Montefort SM, Xuereb RGX, Aschacher T, Messner B, Eichmair E, Mohl W, Reglin B, Rong W, Nitzsche B, Maibier M, Guimaraes P, Ruggeri A, Secomb TW, Pries AR, Baranowska-Kuczko M, Karpinska O, Kusaczuk M, Malinowska B, Kozlowska H, Demikhova N, Vynnychenko L, Prykhodko O, Grechanyk N, Kuryata A, Cottrill KA, Du L, Bjorck HM, Maleki S, Franco-Cereceda A, Chan SY, Eriksson P, Giebe S, Cockcroft N, Hewitt K, Brux M, Brunssen C, Tarasov AA, Davidov SI, Reznikova EA, Tapia Abellan A, Angosto Bazarra D, Pelegrin Vivancos P, Montoro Garcia S, Kastl SP, Pongratz T, Goliasch G, Gaspar L, Maurer G, Huber K, Dostal E, Pfaffenberger S, Oravec S, Wojta J, Speidl WS, Osipova I, Sopotova I, Eligini S, Cosentino N, Marenzi G, Tremoli E, Rami M, Ring L, Steffens S, Gur O, Gurkan S, Mangold A, Scherz T, Panzenboeck A, Staier N, Heidari H, Mueller J, Lang IM, Osipova I, Sopotova I, Gatsiou A, Stamatelopoulos K, Perisic L, John D, Lunella FF, Eriksson P, Hedin U, Zeiher A, Dimmeler S, Nunez L, Moure R, Marron-Linares G, Flores X, Aldama G, Salgado J, Calvino R, Tomas M, Bou G, Vazquez N, Hermida-Prieto M, Vazquez-Rodriguez JM, Amit U, Landa N, Kain D, Tyomkin D, David A, Leor J, Hohensinner PJ, Baumgartner J, Krychtiuk KA, Maurer G, Huber K, Baik N, Miles LA, Wojta J, Seeman H, Montecucco F, Da Silva AR, Costa-Fraga FP, Anguenot L, Mach FP, Santos RAS, Stergiopulos N, Da Silva RF, Kupreishvili K, Vonk ABA, Smulders YM, Van Hinsbergh VWM, Stooker W, Niessen HWM, Krijnen PAJ, Ashmawy MM, Salama MA, Elamrosy MZ, Juettner R, Rathjen FG, Bito V, Crocini C, Ferrantini C, Gabbrielli T, Silvestri L, Coppini R, Tesi C, Cerbai E, Poggesi C, Pavone FS, Sacconi L, Mackova K, Zahradnik I, Zahradnikova A, Diaz I, Sanchez De Rojas De Pedro E, Hmadcha K, Calderon Sanchez E, Benitah JP, Gomez AM, Smani T, Ordonez A, Afanasiev SA, Egorova MV, Popov SV, Wu Qing P, Cheng X, Carnicka S, Pancza D, Jasova M, Kancirova I, Ferko M, Ravingerova T, Wu S, Schneider M, Marggraf V, Verfuerth L, Frede S, Boehm O, Dewald O, Baumgarten G, Kim SC, Farkasova V, Gablovsky I, Bernatova I, Ravingerova T, Nosar V, Portnychenko A, Drevytska T, Mankovska I, Gogvadze V, Sejersen T, Kostareva A, Sturza A, Wolf A, Privistirescu A, Danila M, Muntean D, O ' Gara P, Sanchez-Alonso JL, Harding SE, Lyon AR, Prando V, Pianca N, Lo Verso F, Milan G, Pesce P, Sandri M, Mongillo M, Beffagna G, Poloni G, Dazzo E, Sabatelli P, Doliana R, Polishchuk R, Carnevale D, Lembo G, Bonaldo P, Braghetta P, Rampazzo A, Cairo M, Giralt M, Villarroya F, Planavila A, Biesbroek PS, Emmens RWE, Juffermans LJM, Van Der Wall AC, Van Rossum AC, Niessen JWM, Krijnen PAJ, Moor Morris T, Dilanian G, Farahmand P, Puceat M, Hatem S, Gambino G, Petraglia L, Elia A, Komici K, Femminella GD, D'amico ML, Pagano G, Cannavo A, Liccardo D, Koch WJ, Nolano M, Leosco D, Ferrara N, Rengo G, Amit U, Landa N, Kain D, Leor J, Neary R, Shiels L, Watson C, Baugh J, Palacios B, Escobar B, Alonso AV, Guzman G, Ruiz-Cabello J, Jimenez-Borreguero LJ, Martin-Puig S, Lakomkin VL, Lukoshkova EV, Abramov AA, Gramovich VV, Vyborov ON, Ermishkin VV, Undrovinas NA, Shirinsky VP, Smilde BJ, Woudstra L, Fong Hing G, Wouters D, Zeerleder S, Murk JL, Van Ham SM, Heymans S, Juffermans LJM, Van Rossum AC, Niessen JWM, Krijnen PAJ, Krakhmalova O, Van Groen D, Bogaards SJP, Schalij I, Portnichenko GV, Tumanovska LV, Goshovska YV, Lapikova-Bryhinska TU, Nagibin VS, Dosenko VE, Mendes-Ferreira P, Maia-Rocha C, Santos-Ribeiro D, Potus F, Breuils-Bonnet S, Provencher S, Bonnet S, Rademaker M, Leite-Moreira AF, Bras-Silva C, Lopes J, Kuryata O, Lusynets T, Alikulov I, Nourddine M, Azzouzi L, Habbal R, Tserendavaa SUMIYA, Enkhtaivan ODKHUU, Enkhtaivan ODKHUU, Shagdar ZORIGO, Shagdar ZORIGO, Malchinkhuu MUNKHZ, Malchinkhuu MUNLHZ, Koval S, Starchenko T, Mourino-Alvarez L, Gonzalez-Calero L, Sastre-Oliva T, Lopez JA, Vazquez J, Alvarez-Llamas G, Ruilope LUISM, De La Cuesta F, Barderas MG, Bozzini S, D'angelo A, Pelissero G. Poster session 3Cell growth, differentiation and stem cells - Heart511The role of the endocannabinoid system in modelling muscular dystrophy cardiac disease with induced pluripotent stem cells.512An emerging role of T lymphocytes in cardiac regenerative processes in heart failure due to dilated cardiomyopathy513Canonical wnt signaling reverses the ‘aged/senescent’ human endogenous cardiac stem cell phenotype514Hippo signalling modulates survival of human induced pluripotent stem cell-derived cardiomyocytes515Biocompatibility of mesenchymal stem cells with a spider silk matrix and its potential use as scaffold for cardiac tissue regeneration516A snapshot of genome-wide transcription in human induced pluripotent stem cell-derived hepatocyte-like cells (iPSC-HLCs)517Can NOS/sGC/cGK1 pathway trigger the differentiation and maturation of mouse embryonic stem cells (ESCs)?518Introduction of external Ik1 to human-induced pluripotent stem cell-derived cardiomyocytes via Ik1-expressing HEK293519Cell therapy of the heart studied using adult myocardial slices in vitro520Enhancement of the paracrine potential of human adipose derived stem cells when cultured as spheroid bodies521Mechanosensitivity of cardiomyocyte progenitor cells: the strain response in 2D and 3D environments522The effect of the vascular-like network on the maturation of the human induced pluripotent stem cell derived cardiomyocytes.Transcriptional control and RNA species - Heart525Gene expression regulation in heart failure: from pathobiology to bioinformatics526Human transcriptome in idiopathic dilated cardiomyopathy - a novel high throughput screening527A high-throghput approach unveils putative miRNA-mediated mitochondria-targeted cardioprotective circuits activated by T3 in the post ischemia reperfusion setting528The effect of uraemia on the expression of miR-212/132 and the calcineurin pathway in the rat heartCytokines and cellular inflammation - Heart531Lack of growth differentiation factor 15 aggravates adverse cardiac remodeling upon pressure-overload in mice532Blocking heteromerization of platelet chemokines ccl5 and cxcl4 reduces inflammation and preserves heart function after myocardial infarction533Is there an association between low-dose aspirin use and clinical outcome in HFPEF? Implications of modulating monocyte function and inflammatory mediator release534N-terminal truncated intracellular matrix metalloproteinase-2 expression in diabetic heart.535Expression of CD39 and CD73 on peripheral T-cell subsets in calcific aortic stenosis536Mast cells in the atrial myocardium of patients with atrial fibrillation: a comparison with patients in sinus rhythm539Characteristics of the inflammatory response in patients with coronary artery disease and arterial hypertension540Pro-inflammatory cytokines as cardiovascular events predictors in rheumatoid arthritis and asymptomatic atherosclerosis541Characterization of FVB/N murinic bone marrow-derived macrophage polarization into M1 and M2 phenotypes542The biological expression and thoracic anterior pain syndromeSignal transduction - Heart545The association of heat shock protein 90 and TGFbeta receptor I is involved in collagen production during cardiac remodelling in aortic-banded mice546Loss of the inhibitory GalphaO protein in the rostral ventrolateral medulla of the brainstem leads to abnormalities in cardiovascular reflexes and altered ventricular excitablitiy547Selenoprotein P regulates pressure overload-induced cardiac remodeling548Study of adenylyl cyclase activity in erythrocyte membranes in patients with chronic heart failure549Direct thrombin inhibitors inhibit atrial myocardium hypertrophy in a rat model of heart failure and atrial remodeling550Tissue factor / FVIIa transactivates the IGF-1R by a Src-dependent phosphorylation of caveolin-1551Notch signaling is differently altered in endothelial and smooth muscle cells of ascending aortic aneurysm patients552Frizzled 5 expression is essential for endothelial proliferation and migration553Modulation of vascular function and ROS production by novel synthetic benzopyran analogues in diabetes mellitusExtracellular matrix and fibrosis - Heart556Cardiac fibroblasts as inflammatory supporter cells trigger cardiac inflammation in heart failure557A role for galectin-3 in calcific aortic valve stenosis558Omega-3 polyunsaturated fatty acids- can they decrease risk for ventricular fibrillation?559Serum levels of elastin derived peptides and circulating elastin-antielastin immune complexes in sera of patients with coronary artery disease560Endocardial fibroelastosis is secondary to hemodynamic alterations in the chick model of hypoplastic left heart syndrome561Dynamics of serum levels of matrix metalloproteinases in primary anterior STEMI patients564Deletion of the alpha-7 nicotinic acetylcholine receptor changes the vascular remodeling induced by transverse aortic constriction in mice.565Extracellular matrix remodelling in response to venous hypertension: proteomics of human varicose veinsIon channels, ion exchangers and cellular electrophysiology - Heart568Microtubule-associated protein RP/EB family member 1 modulates sodium channel trafficking and cardiac conduction569Investigation of electrophysiological abnormalities in a rabbit athlete's heart model570Upregulation of expression of multiple genes in the atrioventricular node of streptozotocin-induced diabetic rat571miR-1 as a regulator of sinoatrial rhythm in endurance training adaptation572Selective sodium-calcium exchanger inhibition reduces myocardial dysfunction associated with hypokalaemia and ventricular fibrillation573Effect of racemic and levo-methadone on action potential of human ventricular cardiomyocytes574Acute temperature effects on the chick embryonic heart functionVasculogenesis, angiogenesis and arteriogenesis577Clinical improvement and enhanced collateral vessel growth after monocyte transplantation in mice578The role of HIF-1 alpha, VEGF and obstructive sleep apnoea in the development of coronary collateral circulation579Initiating cardiac repair with a trans-coronary sinus catheter intervention in an ischemia/reperfusion porcine animal model580Early adaptation of pre-existing collaterals after acute arteriolar and venular microocclusion: an in vivo study in chick chorioallantoic membraneEndothelium583EDH-type responses to the activator of potassium KCa2.3 and KCa3.1 channels SKA-31 in the small mesenteric artery from spontaneously hypertensive rats584The peculiarities of endothelial dysfunction in patients with chronic renocardial syndrome585Endothelial dysfunction, atherosclerosis of the carotid arteries and level of leptin in patient with coronary heart disease in combination with hepatic steatosis depend from body mass index.586Role of non-coding RNAs in thoracic aortic aneurysm associated with bicuspid aortic valve587Cigarette smoke extract abrogates atheroprotective effects of high laminar flow on endothelial function588The prognostic value of anti-connective tissue antibodies in coronary heart disease and asymptomatic atherosclerosis589Novel potential properties of bioactive peptides from spanish dry-cured ham on the endothelium.Lipids592Intermediate density lipoprotein is associated with monocyte subset distribution in patients with stable atherosclerosis593The characteristics of dyslipidemia in rheumatoid arthritisAtherosclerosis596Macrophages differentiated in vitro are heterogeneous: morphological and functional profile in patients with coronary artery disease597Palmitoylethanolamide promotes anti-inflammatory phenotype of macrophages and attenuates plaque formation in ApoE-/- mice598Amiodarone versus esmolol in the perioperative period: an in vitro study of coronary artery bypass grafts599BMPRII signaling of fibrocytes, a mesenchymal progenitor cell population, is increased in STEMI and dyslipidemia600The characteristics of atherogenesis and systemic inflammation in rheumatoid arthritis601Role of adenosine-to-inosine RNA editing in human atherosclerosis602Presence of bacterial DNA in thrombus aspirates of patients with myocardial infarction603Novel E-selectin binding polymers reduce atherosclerotic lesions in ApoE(-/-) mice604Differential expression of the plasminogen receptor Plg-RKT in monocyte and macrophage subsets - possible functional consequences in atherogenesis605Apelin-13 treatment enhances the stability of atherosclerotic plaques606Mast cells are increased in the media of coronary lesions in patients with myocardial infarction and favor atherosclerotic plaque instability607Association of neutrophil to lymphocyte ratio with presence of isolated coronary artery ectasiaCalcium fluxes and excitation-contraction coupling610The coxsackie- and adenovirus receptor (CAR) regulates calcium homeostasis in the developing heart611HMW-AGEs application acutely reduces ICaL in adult cardiomyocytes612Measuring electrical conductibility of cardiac T-tubular systems613Postnatal development of cardiac excitation-contraction coupling in rats614Role of altered Ca2+ homeostasis during adverse cardiac remodeling after ischemia/reperfusion615Experimental study of sarcoplasmic reticulum dysfunction and energetic metabolism in failing myocardium associated with diabetes mellitusHibernation, stunning and preconditioning618Volatile anesthetic preconditioning attenuates ischemic-reperfusion injury in type II diabetic patients undergoing on-pump heart surgery619The effect of early and delayed phase of remote ischemic preconditioning on ischemia-reperfusion injury in the isolated hearts of healthy and diabetic rats620Post-conditioning with 1668-thioate leads to attenuation of the inflammatory response and remodeling with less fibrosis and better left ventricular function in a murine model of myocardial infarction621Maturation-related changes in response to ischemia-reperfusion injury and in effects of classical ischemic preconditioning and remote preconditioningMitochondria and energetics624Phase changes in myocardial mitochondrial respiration caused by hypoxic preconditioning or periodic hypoxic training625Desmin mutations depress mitochondrial metabolism626Methylene blue modulates mitochondrial function and monoamine oxidases-related ROS production in diabetic rat hearts627Doxorubicin modulates the real-time oxygen consumption rate of freshly isolated adult rat and human ventricular cardiomyocytesCardiomyopathies and fibrosis630Effects of genetic or pharmacologic inhibition of the ubiquitin/proteasome system on myocardial proteostasis and cardiac function631Suppression of Wnt signalling in a desmoglein-2 transgenic mouse model for arrhythmogenic cardiomyopathy632Cold-induced cardiac hypertrophy is reversed after thermo-neutral deacclimatization633CD45 is a sensitive marker to diagnose lymphocytic myocarditis in endomyocardial biopsies of living patients and in autopsies634Atrial epicardial adipose tissue derives from epicardial progenitors635Caloric restriction ameliorates cardiac function, sympathetic cardiac innervation and beta-adrenergic receptor signaling in an experimental model of post-ischemic heart failure636High fat diet improves cardiac remodelling and function after extensive myocardial infarction in mice637Epigenetic therapy reduces cardiac hypertrophy in murine models of heart failure638Imbalance of the VHL/HIF signaling in WT1+ Epicardial Progenitors results in coronary vascular defects, fibrosis and cardiac hypertrophy639Diastolic dysfunction is the first stage of the developing heart failure640Colchicine aggravates coxsackievirus B3 infection in miceArterial and pulmonary hypertension642Osteopontin as a marker of pulmonary hypertension in patients with coronary heart disease combined with chronic obstructive pulmonary disease643Myocardial dynamic stiffness is increased in experimental pulmonary hypertension partly due to incomplete relaxation644Hypotensive effect of quercetin is possibly mediated by down-regulation of immunotroteasome subunits in aorta of spontaneously hypertensive rats645Urocortin-2 improves right ventricular function and attenuates experimental pulmonary arterial hypertension646A preclinical evaluation of the anti-hypertensive properties of an aqueous extract of Agathosma (Buchu)Biomarkers648The adiponectin level in hypertensive females with rheumatoid arthritis and its relationship with subclinical atherosclerosis649Markers for identification of renal dysfunction in the patients with chronic heart failure650cardio-hepatic syndromes in chronic heart failure: North Africa profile651To study other biomarkers that assess during myocardial infarction652Interconnections of apelin levels with parameters of lipid metabolism in hypertension patients653Plasma proteomics in hypertension: prediction and follow-up of albuminuria during chronic renin-angiotensin system suppression654Soluble RAGE levels in plasma of patients with cerebrovascular events. Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw150] [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: 11/12/2022] Open
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Odawara M, Miyagawa J, Iwamoto N, Takita Y, Imaoka T, Takamura T. Once-weekly glucagon-like peptide-1 receptor agonist dulaglutide significantly decreases glycated haemoglobin compared with once-daily liraglutide in Japanese patients with type 2 diabetes: 52 weeks of treatment in a randomized phase III study. Diabetes Obes Metab 2016; 18:249-57. [PMID: 26661514 PMCID: PMC5064615 DOI: 10.1111/dom.12602] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 09/18/2015] [Accepted: 10/28/2015] [Indexed: 01/14/2023]
Abstract
AIMS To examine the efficacy and safety of once-weekly dulaglutide 0.75 mg monotherapy compared with once-daily liraglutide 0.9 mg in Japanese patients with type 2 diabetes (T2D) for 52 weeks. METHODS We conducted a phase III, randomized, 52-week (26-week primary endpoint), active- and placebo-controlled trial comparing 492 Japanese patients (dulaglutide, n = 281; liraglutide, n = 141; and placebo, n = 70). Participants and investigators were blinded to treatment assignment for dulaglutide and placebo but not for liraglutide (open-label comparator); after 26 weeks, patients randomized to placebo were switched to once-weekly dulaglutide 0.75 mg (open-label). The present paper reports results for patients treated with dulaglutide and patients treated with liraglutide for 52 weeks. RESULTS At week 52, dulaglutide decreased HbA1c significantly from baseline compared with liraglutide [least squares mean difference: -0.20; 95% confidence interval (CI) -0.39, -0.01; p = 0.04]. At week 52 (last observation carried forward), dulaglutide significantly decreased pre- and post-dinner blood glucose (BG) levels, the mean of seven-point self-monitored BG profiles, the mean of all postprandial BG levels and circadian variation compared with liraglutide. Body weight was generally stable in both groups through 52 weeks. The most frequently reported adverse events were nasopharyngitis, constipation, nausea and diarrhoea. Eight dulaglutide-treated (2.9%) and four liraglutide-treated (2.9%) patients reported hypoglycaemia, with no event being severe. CONCLUSIONS Monotherapy with once-weekly dulaglutide 0.75 mg was effective and safe in Japanese patients with T2D, with better glycaemic control compared with once-daily liraglutide 0.9 mg.
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Affiliation(s)
- M Odawara
- Division of Diabetes, Endocrinology and Metabolism, Department of Diabetes, Endocrinology, Metabolism and Rheumatology, Tokyo Medical University, Tokyo, Japan
| | - J Miyagawa
- Division of Diabetes, Endocrinology and Metabolism, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | | | - Y Takita
- Eli Lilly Japan K.K., Kobe, Japan
| | - T Imaoka
- Eli Lilly Japan K.K., Kobe, Japan
| | - T Takamura
- Department of Comprehensive Metabology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
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Miyagawa J, Odawara M, Takamura T, Iwamoto N, Takita Y, Imaoka T. Once-weekly glucagon-like peptide-1 receptor agonist dulaglutide is non-inferior to once-daily liraglutide and superior to placebo in Japanese patients with type 2 diabetes: a 26-week randomized phase III study. Diabetes Obes Metab 2015; 17:974-83. [PMID: 26179187 PMCID: PMC5042083 DOI: 10.1111/dom.12534] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 06/22/2015] [Accepted: 07/02/2015] [Indexed: 01/13/2023]
Abstract
AIMS To examine the efficacy and safety of once-weekly dulaglutide monotherapy (0.75 mg) compared with placebo and once-daily liraglutide (0.9 mg) in Japanese patients with type 2 diabetes. METHODS This was a phase III, 52-week (26-week primary endpoint), randomized, double-blind, placebo-controlled, open-label comparator (liraglutide) trial comparing 492 Japanese patients with type 2 diabetes (dulaglutide, n = 281; liraglutide, n = 141; and placebo, n = 70) who were aged ≥20 years. Patients and investigators were blinded to treatment assignment for dulaglutide and placebo but not for liraglutide. The primary objective evaluated the superiority of dulaglutide versus placebo on change from baseline in glycated haemoglobin (HbA1c) at 26 weeks. Analyses were performed on the full analysis set. RESULTS At 26 weeks, once-weekly dulaglutide was superior to placebo and non-inferior to once-daily liraglutide for HbA1c change from baseline [least squares mean difference: dulaglutide vs placebo -1.57% (95% confidence interval -1.79 to -1.35); dulaglutide vs liraglutide -0.10% (95% confidence interval -0.27 to 0.07)]. The most frequently reported adverse events were nasopharyngitis, constipation, diarrhoea, nausea, abdominal distension and decreased appetite; only decreased appetite was different between the dulaglutide and liraglutide groups [dulaglutide, n = 2 (0.7%); liraglutide, n = 8 (5.8%); p = 0.003]. Nine (1.8%) patients experienced hypoglycaemia [dulaglutide, n = 6 (2.1%); liraglutide, n = 2 (1.5%); placebo, n = 1 (1.4%)], with no event being severe. CONCLUSIONS In Japanese patients with type 2 diabetes, once-weekly dulaglutide (0.75 mg) was superior to placebo and non-inferior to once-daily liraglutide (0.9 mg) for reduction in HbA1c at 26 weeks. Dulaglutide was safe and well tolerated.
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Affiliation(s)
- J Miyagawa
- Division of Diabetes, Endocrinology and Metabolism, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - M Odawara
- Division of Diabetes, Endocrinology and Metabolism, Department of Diabetes, Endocrinology, Metabolism and Rheumatology, Tokyo Medical University, Tokyo, Japan
| | - T Takamura
- Department of Comprehensive Metabology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | | | - Y Takita
- Eli Lilly Japan K.K, Kobe, Japan
| | - T Imaoka
- Eli Lilly Japan K.K, Kobe, Japan
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Sakurai M, Nakamura K, Miura K, Takamura T, Yoshita K, Nagasawa SY, Morikawa Y, Ishizaki M, Kido T, Naruse Y, Suwazono Y, Sasaki S, Nakagawa H. Sugar-sweetened beverage and diet soda consumption and the 7-year risk for type 2 diabetes mellitus in middle-aged Japanese men. Eur J Nutr 2015; 53:1137-8. [PMID: 24633756 DOI: 10.1007/s00394-014-0681-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- M Sakurai
- Department of Epidemiology and Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan,
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Abderrahmane A, Ko PJ, Thu TV, Ishizawa S, Takamura T, Sandhu A. High photosensitivity few-layered MoSe2 back-gated field-effect phototransistors. Nanotechnology 2014; 25:365202. [PMID: 25140619 DOI: 10.1088/0957-4484/25/36/365202] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this paper, we report on the fabrication and optoelectronic properties of high sensitive phototransistors based on few-layered MoSe2 back-gated field-effect transistors, with a mobility of 19.7 cm² V⁻¹ s⁻¹ at room temperature. We obtained an ultrahigh photoresponsivity of 97.1 AW⁻¹ and an external quantum efficiency (EQE) of 22 666% using 532 nm laser excitation at room temperature. The photoresponsivity was improved near the threshold gate voltage; however, the selection of the silicon dioxide as a gate oxide represents a limiting factor in the ultimate performance. Thanks to their high photoresponsivity and external quantum efficiency, the few-layered MoSe2-based devices are promising for photoelectronic applications.
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Sugimoto T, Kawamura A, Horiguchi M, Takamura T, Sakabe S, Seko T, Dohi K, Onishi K, Kasai A, Ito M. Prognostic value of serum parathyroid hormone in patients with acute heart failure. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5075] [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: 11/13/2022] Open
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Sakurai M, Nakamura K, Miura K, Takamura T, Yoshita K, Nagasawa SY, Morikawa Y, Ishizaki M, Kido T, Naruse Y, Suwazono Y, Sasaki S, Nakagawa H. Sugar-sweetened beverage and diet soda consumption and the 7-year risk for type 2 diabetes mellitus in middle-aged Japanese men. Eur J Nutr 2013; 53:251-8. [PMID: 23575771 DOI: 10.1007/s00394-013-0523-9] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [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: 11/09/2012] [Accepted: 04/02/2013] [Indexed: 12/17/2022]
Abstract
PURPOSE This cohort study investigated the association between sugar-sweetened beverage (SSB) and diet soda consumption and the incidence of type 2 diabetes in Japanese men. METHODS The participants were 2,037 employees of a factory in Japan. We measured consumption of SSB and diet soda using a self-administered diet history questionnaire. The incidence of diabetes was determined in annual medical examinations over a 7-year period. Hazard ratios (HRs) with 95 % confidence intervals (CIs) for diabetes were estimated after adjusting for age, body mass index, family history, and dietary and other lifestyle factors. RESULTS During the study, 170 participants developed diabetes. The crude incidence rates (/1,000 person-years) across participants who were rare/never SSB consumers, <1 serving/week, ≥ 1 serving/week and <1 serving/day, and ≥ 1 serving/day were 15.5, 12.7, 14.9, and 17.4, respectively. The multivariate-adjusted HR compared to rare/never SSB consumers was 1.35 (95 % CI 0.80-2.27) for participants who consumed ≥ 1 serving/day SSB. Diet soda consumption was significantly associated with the incident risk of diabetes (P for trend = 0.013), and multivariate-adjusted HRs compared to rare/never diet soda consumers were 1.05 (0.62-1.78) and 1.70 (1.13-2.55), respectively, for participants who consumed <1 serving/week and ≥ 1 serving/week. CONCLUSIONS Consumption of diet soda was significantly associated with an increased risk for diabetes in Japanese men. Diet soda is not always effective at preventing type 2 diabetes even though it is a zero-calorie drink.
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Affiliation(s)
- M Sakurai
- Department of Epidemiology and Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan,
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Dim JR, Murakami H, Nakajima TY, Nordell B, Heidinger AK, Takamura T. The recent state of the climate: Driving components of cloud-type variability. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010jd014559] [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: 11/09/2022]
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Takamura T, Sumiya K, Nishijima Y, Suzuki J, Sekine K. A Novel Method for Obtaining a High Performance Carbon Anode for Li-Ion Secondary Batteries. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-496-557] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTEntire surfaces of the pitch-based well graphitized and poorly graphitized carbon fibers were covered with an evaporated metallic film of Au, Ag, Sn, or Zn, whose thickness was varied from 100 to 600 Å. Li dope and undope characteristics as the anode of Li-ion secondary battery were compared for the samples with and without evaporated film. Not only high rate charge/discharge characteristics but cycleability have been realized to be improved remarkably for the sample whose surface was covered with a thin metal film.
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Pittendrigh CS, Takamura T. Temperature dependence and evolutionary adjustment of critical night length in insect photoperiodism. Proc Natl Acad Sci U S A 2010; 84:7169-73. [PMID: 16593882 PMCID: PMC299251 DOI: 10.1073/pnas.84.20.7169] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The photoperiodic responses of Drosophila auraria are shown to involve its circadian system functioning as the "clock" that measures the duration of darkness at night. Attempts at further clarification of this finding were based on the widely held assumption that adaptive adjustment of critical night length is caused by change in the circadian system's entrainment behavior. Three different experimental programs yielded data that are incompatible with this starting premise. Collectively, the observations suggest a new interpretation of the lability (phenotypic and genetic) of critical night length based on change in the level of response to all night-length measurements-not on the measurements themselves. This proposition is found especially relevant to the temperature dependence of photoperiodic responses and its role in controlling the onset and termination of the breeding season at different latitudes.
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Affiliation(s)
- C S Pittendrigh
- Hopkins Marine Station of Stanford University, Pacific Grove, CA 93950
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Sakurai M, Miura K, Takamura T, Ishizaki M, Morikawa Y, Nakamura K, Yoshita K, Kido T, Naruse Y, Kaneko S, Nakagawa H. J-shaped relationship between waist circumference and subsequent risk for Type 2 diabetes: an 8-year follow-up of relatively lean Japanese individuals. Diabet Med 2009; 26:753-9. [PMID: 19709143 DOI: 10.1111/j.1464-5491.2009.02773.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [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: 12/18/2022]
Abstract
AIMS This study investigated the relationship between waist circumference and the subsequent incidence of Type 2 diabetes and the association with insulin resistance and pancreatic B-cell function in relatively lean Japanese individuals. METHODS The study participants were 3992 employees (2533 men and 1459 women, aged 35-55 years) of a metal-products factory in Japan. The incidence of diabetes was determined in annual medical examinations during an 8-year follow-up. We calculated age- and sex-adjusted hazard ratios (HRs) according to the sex-specific quintile of waist circumference at baseline. Differences in baseline insulin resistance [homeostatis model assessment (HOMA)-IR] and pancreatic B-cell function (HOMA-B) were compared between participants who developed diabetes and those who did not. RESULTS During the follow-up, 218 participants developed diabetes. Age- and sex-adjusted HRs across the quintiles of waist circumference were 1.78, 1.00 (reference), 1.59, 3.11 and 3.30, respectively (P for trend, < 0.0001). The HR for the lowest quintile was significantly higher than that for the second quintile. Among participants with waist circumference of the lowest quintile, HOMA-B was lower in those who developed diabetes than in those who did not [33.1 (24.1-45.0) vs. 54.3 (37.9-74.6) median (interquartile range), P < 0.0001], but HOMA-IR did not differ between these groups. CONCLUSIONS There was a J-shaped relationship between waist circumference and subsequent risk for Type 2 diabetes in relatively lean Japanese individuals; lower pancreatic B-cell function may also increase the risk of diabetes in very lean Japanese people. Diabet. Med. 26, 753-759 (2009).
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Affiliation(s)
- M Sakurai
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, Japan.
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Nakajima H, Uchida K, Kobayashi S, Takamura T, Yayama T, Baba H. Microsurgical excision of multiple clear cell meningiomas of the cauda equina: a case report. ACTA ACUST UNITED AC 2009; 52:32-5. [PMID: 19247902 DOI: 10.1055/s-0028-1085455] [Citation(s) in RCA: 10] [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: 10/21/2022]
Abstract
We report the case of a 21-year-old woman who presented with a 2-year history of worsening radicular pain on the right leg. The Valsalva manoeuvre provoked radicular pain and radiography showed right-convex 36 degrees scoliosis. Examination showed slight hypoesthesia on the right L3-S1 dermatomes but abnormal muscle power and reflexes. Magnetic resonance imaging identified cauda equina tumours at the L2-3 and L4 levels. The tumours showed heterogeneously isointense signals on T(1)-weighted image, hypointense signals on T(2)-weighted image, and hyperintense signal on gadolinium-enhanced T(1)-weighted sequences. The tumour was microsurgically extirpated from the cauda equina and resected through multiple small laminotomies. Macroscopically, the tumours were poorly encapsulated, hard in consistency, adherent to the adjacent cauda equinas, irregularly shaped like a "horseradish", and yellowish-grey in colour. Histopathological diagnosis was clear cell meningioma.
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Affiliation(s)
- H Nakajima
- Department of Orthopaedics and Rehabilitation Medicine, University of Fukui Faculty of Medical Sciences, Yoshida-gun, Fukui, Japan.
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Ando H, Takamura T, Matsuzawa-Nagata N, Shima KR, Eto T, Misu H, Shiramoto M, Tsuru T, Irie S, Fujimura A, Kaneko S. Clock gene expression in peripheral leucocytes of patients with type 2 diabetes. Diabetologia 2009; 52:329-35. [PMID: 18974966 DOI: 10.1007/s00125-008-1194-6] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [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] [Received: 07/11/2008] [Accepted: 10/07/2008] [Indexed: 12/23/2022]
Abstract
AIM/HYPOTHESIS Recent studies have demonstrated relationships between circadian clock function and the development of metabolic diseases such as type 2 diabetes. We investigated whether the peripheral circadian clock is impaired in patients with type 2 diabetes. METHODS Peripheral leucocytes were obtained from eight patients with diabetes and six comparatively young non-diabetic volunteers at 09:00, 15:00, 21:00 and 03:00 hours (study 1) and from 12 male patients with diabetes and 14 age-matched men at 09:00 hours (study 2). Transcript levels of clock genes (CLOCK, BMAL1 [also known as ARNTL], PER1, PER2, PER3 and CRY1) were determined by real-time quantitative PCR. RESULTS In study 1, mRNA expression patterns of BMAL1, PER1, PER2 and PER3 exhibited 24 h rhythmicity in the leucocytes of all 14 individuals. The expression levels of these mRNAs were significantly (p < 0.05) lower in patients with diabetes than in non-diabetic individuals at one or more time points. Moreover, the amplitudes of mRNA expression rhythms of PER1 and PER3 genes tended to diminish in patients with diabetes. In study 2, leucocytes obtained from patients with diabetes expressed significantly (p < 0.05) lower transcript levels of BMAL1, PER1 and PER3 compared with leucocytes from control individuals, and transcript expression was inversely correlated with HbA(1c) levels (rho = -0.47 to -0.55, p < 0.05). CONCLUSIONS/INTERPRETATION These results suggest that rhythmic mRNA expression of clock genes is dampened in peripheral leucocytes of patients with type 2 diabetes. The impairment of the circadian clock appears to be closely associated with the pathophysiology of type 2 diabetes in humans.
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Affiliation(s)
- H Ando
- Division of Clinical Pharmacology, Department of Pharmacology, School of Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan.
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Zhang T, Zhang H, Yang L, Wang B, Wu Y, Takamura T. The structural evolution and lithiation behavior of vacuum-deposited Si film with high reversible capacity. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2008.03.017] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Pittendrigh CS, Elliott J, Takamura T. The Circadian Component in Photoperiodic Induction. Ciba Foundation Symposium 104 - Photoperiodic Regulation of Insect and Molluscan Hormones 2008. [DOI: 10.1002/9780470720851.ch4] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Yayama T, Kobayashi S, Uchida K, Kokubo Y, Nakajima H, Sato R, Bangirana A, Takamura T, Baba H. Insidious progression of paraparesis secondary to type III spinal meningeal cyst: a study of six difficult cases. Spinal Cord 2007; 46:159-61. [PMID: 17515933 DOI: 10.1038/sj.sc.3102079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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: 11/08/2022]
Abstract
STUDY DESIGN Case report. SETTING Neuro-orthopaedic Unit, Fukui University Hospital, Japan. CASE REPORT We studied six patients with insidious progression of paraparesis caused by thoracic and thoracolumbar spine type III spinal meningeal cyst and intradural arachnoid cyst, who underwent microsurgical decompression. Histologically, some samples showed oedematous and hypertrophic changes of the arachnoidal tissue together with occasional tophaceous deposits and calcification. Surgical treatment was complete excision of the cyst, or wide fenestration of these membrane, and close a communicating fistula, if detectable. All patients improved neurologically after microscopic surgery. CONCLUSION We stress the significance of neuroimaging and neurological assessment in patients with gradual progression of paraparesis caused by intradural arachnoid cyst, but surgical procedure and timing of operative intervention require further considerations.
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Affiliation(s)
- T Yayama
- Faculty of Medical Sciences, Department of Orthopaedics and Rehabilitation Medicine, Fukui University, Fukui, Japan.
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Gao J, Zhang H, Fu L, Zhang T, Wu Y, Takamura T, Wu H, Holze R. Suppressing propylene carbonate decomposition by coating graphite electrode foil with silver. Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2007.02.064] [Citation(s) in RCA: 13] [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: 10/23/2022]
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Pandithurai G, Pinker RT, Devara PCS, Takamura T, Dani KK. Seasonal asymmetry in diurnal variation of aerosol optical characteristics over Pune, western India. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007803] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Misu H, Takamura T, Matsuzawa N, Shimizu A, Ota T, Sakurai M, Ando H, Arai K, Yamashita T, Honda M, Yamashita T, Kaneko S. Genes involved in oxidative phosphorylation are coordinately upregulated with fasting hyperglycaemia in livers of patients with type 2 diabetes. Diabetologia 2007; 50:268-77. [PMID: 17187250 DOI: 10.1007/s00125-006-0489-8] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [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] [Received: 05/30/2006] [Accepted: 09/19/2006] [Indexed: 01/06/2023]
Abstract
AIMS/HYPOTHESIS Mitochondrial oxidative phosphorylation (OXPHOS) plays an important role in the pathophysiology of type 2 diabetes. Genes involved in OXPHOS have been reported to be down-regulated in skeletal muscle from patients with type 2 diabetes; however, hepatic regulation is unknown. MATERIALS AND METHODS We analysed expression of genes involved in OXPHOS from the livers of 14 patients with type 2 diabetes and 14 subjects with NGT using serial analysis of gene expression (SAGE) and DNA chip analysis. We evaluated the correlation between expression levels of genes involved in OXPHOS and the clinical parameters of individuals with type 2 diabetes and NGT. RESULTS Both gene analyses showed that genes involved in OXPHOS were significantly upregulated in the type 2 diabetic liver. In the SAGE analysis, tag count comparisons of mitochondrial transcripts showed that ribosomal RNAs (rRNA) were 3.5-fold over-expressed, and mRNAs were 1.2-fold over-expressed in the type 2 diabetes library. DNA chip analysis revealed that expression of genes involved in OXPHOS, which correlated with several nuclear factors, including estrogen-related receptor-alpha or peroxisome proliferator-activated receptor-gamma, was a predictor of fasting plasma glucose levels, independently of age, BMI, insulin resistance and fasting insulin levels (p = 0.04). Surprisingly, genes involved in OXPHOS did not correlate with peroxisome proliferator-activated receptor-gamma coactivator-1alpha or nuclear respiratory factor 1. CONCLUSIONS/INTERPRETATION Our results indicate that upregulation of genes involved in OXPHOS in the liver, which are regulated by different mechanisms from genes in the skeletal muscle, is associated with fasting hyperglycaemia in patients with type 2 diabetes.
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Affiliation(s)
- H Misu
- Deparment of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
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Takamura T, Sakurai M, Ota T, Ando H, Honda M, Kaneko S. Genes for systemic vascular complications are differentially expressed in the livers of type 2 diabetic patients. Diabetologia 2004; 47:638-47. [PMID: 15298340 DOI: 10.1007/s00125-004-1366-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [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: 01/22/2023]
Abstract
AIMS/HYPOTHESIS Type 2 diabetes is characterised by excessive hepatic glucose production and frequently leads to systemic vascular complications. We therefore analysed the relationship between the gene expression profile in the liver and the pathophysiology of Type 2 diabetes. METHODS Liver biopsy samples were obtained from twelve patients with Type 2 diabetes and from nine non-diabetic patients. To assay gene expression globally in the livers of both groups, we made complementary DNA (cDNA) microarrays consisting of 1080 human cDNAs. Relative expression ratios of individual genes were obtained by comparing cyanine 5-labelled cDNA from the patients with cyanine 3-labelled cDNA from reference RNA from the liver of a non-diabetic patient. RESULTS On assessing the similarities of differentially expressed genes, the gene expression profiles of the twelve diabetic patients formed a separate cluster from those of the non-diabetic patients. Of the 1080 genes assayed, 105 (9.7%) were up-regulated and 134 (12%) were down-regulated in the diabetic livers (p<0.005). The genes up-regulated in the diabetic patients included those encoding angiogenic factors such as vascular endothelial growth factor, endothelin and platelet-derived growth factor. They also included TGF superfamily genes such as TGFA and TGFB1 as well as bone morphogenetic proteins. Among the down-regulated genes in the diabetic patients were molecules defending against stress, e.g. flavin-containing monooxygenase and superoxide dismutase. CONCLUSIONS/INTERPRETATION These findings suggest that livers of patients with Type 2 diabetes have gene expression profiles indicative of an increased risk of systemic vascular complications.
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MESH Headings
- Adult
- Aged
- Cytokines/metabolism
- DNA, Complementary/biosynthesis
- DNA, Complementary/genetics
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/pathology
- Diabetes Mellitus, Type 2/physiopathology
- Diabetic Angiopathies/genetics
- Diabetic Angiopathies/pathology
- Diabetic Angiopathies/physiopathology
- Female
- Fluorescent Dyes
- Gene Expression Regulation/physiology
- Humans
- Image Processing, Computer-Assisted
- Liver/metabolism
- Liver/pathology
- Liver Cirrhosis/pathology
- Male
- Middle Aged
- Multigene Family/genetics
- Oligonucleotide Array Sequence Analysis
- RNA, Antisense
- RNA, Messenger/biosynthesis
- RNA, Messenger/isolation & purification
- Reverse Transcriptase Polymerase Chain Reaction
- Risk Assessment
- Signal Transduction/genetics
- Stress, Physiological/physiopathology
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Affiliation(s)
- T Takamura
- Department of Diabetes and Digestive Disease, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
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Ota T, Takamura T, Ando H, Nohara E, Yamashita H, Kobayashi K. Preventive effect of cerivastatin on diabetic nephropathy through suppression of glomerular macrophage recruitment in a rat model. Diabetologia 2003; 46:843-51. [PMID: 12774163 DOI: 10.1007/s00125-003-1099-3] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.4] [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] [Received: 10/23/2002] [Revised: 01/13/2003] [Indexed: 10/26/2022]
Abstract
AIMS/HYPOTHESIS We investigated the effect of cerivastatin, a statin, on the development of diabetic nephropathy in spontaneously hypertensive rats (SHR) with streptozotocin-induced diabetes. METHODS Diabetic SHR were given standard chow or chow containing cerivastatin at a dose of 0.1 mg/kg or 1.0 mg/kg for 12 weeks. Effects of cerivastatin on urinary albumin excretion, mesangial expansion, glomerular macrophage infiltration, and the number of anionic sites on the glomerular basement membrane (GBM) were assessed. RESULTS Cerivastatin did not affect the blood glucose concentration, blood pressure or serum cholesterol concentration in diabetic SHR. However, cerivastatin treatment caused a dose-dependent decrease of albuminuria and hyperfiltration. At 1.0 mg/kg, cerivastatin inhibited the diabetes-induced expansion of mesangial and tuft areas on histological examination of the kidneys, as well as the loss of anionic sites from the GBM evaluated with polyetyleneimine and the intraglomerular infiltration of ED1-positive macrophages evaluated by immunohistochemistry. Whole-kidney expression of mRNA for MCP-1 and TGF-beta, estimated by the real-time quantitative RT-PCR, was increased (both 2.6-fold) in untreated diabetic SHR at 12 weeks. Cerivastatin treatment (1.0 mg/kg) inhibited the up-regulated expression of MCP-1 and TGF-beta mRNA (decreased to 48% and 34%, respectively) in diabetic SHR. CONCLUSION/INTERPRETATION In this hypertensive model of diabetic nephropathy, cerivastatin decreased albuminuria through suppression of glomerular hyperfiltration, mesangial expansion, and the loss of charge barrier independently of a cholesterol-lowering effect. These preventive effects could be at least partly due to inhibition of macrophage recruitment and activation, and inhibition of TGF-beta overexpression.
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Affiliation(s)
- T Ota
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Science, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8641, Japan
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Nagaoka T, Miyakoshi H, Takamura T, Nagai Y, Matsushita S, Kaneko S, Kobayashi K. A case of refractory hypothyroidism requiring daily intravenous thyroxine. J Int Med Res 2002; 30:463-5. [PMID: 12235934 DOI: 10.1177/147323000203000418] [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: 11/15/2022] Open
Abstract
Most patients with hypothyroidism respond to administration of oral thyroxine at a maintenance dose of 50-175 micrograms/day. This is the first documented patient with post-operative hypothyroidism who required about 10 times the standard dose of thyroxine, and whose symptoms only resolved when intravenous thyroxine was administered daily. Our findings support the benefits of daily intravenous therapy with thyroxine in this case.
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Affiliation(s)
- T Nagaoka
- Department of Internal Medicine, Kouseiren Takaoka Hospital, Takaoka, Japan.
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Miyahara T, Simoura T, Osahune N, Uchida Y, Sakuma T, Nemoto N, Kozakai A, Takamura T, Yamazaki R, Higuchi S, Chiba H, Iba K, Sawada N. A highly potent 26,27-Hexafluoro-1a,25-dihydroxyvitamin D3 on calcification in SV40-transformed human fetal osteoblastic cells. Calcif Tissue Int 2002; 70:488-95. [PMID: 12016462 DOI: 10.1007/s00223-001-1039-5] [Citation(s) in RCA: 16] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2001] [Accepted: 12/06/2001] [Indexed: 10/27/2022]
Abstract
26,27-hexafluoro-1a,25-dihydroxyvitamin D3 (F6-D3) has been reported to be 5-10 times more potent than 1a,25-dihydroxyvitamin D3[1,25(OH)2D3] in biological systems in vivo and in vitro. However, the effect of F6-D3 on bone formation has yet to be clarified. In the present study, we investigated the effect of F6-D3 on SV40-transfected human fetal osteoblastic cells (SV-HFO) and found it to be about 100 times greater than that of 1,25(OH)2D3 in stimulating calcification. F6-D3 was also about 100 times more effective than 1,25(OH)2D3 in enhancing the expression of mRNA for alkaline phosphatase (ALP), osteocalcin (OCN), and osteopontin (OPN). In the presence of 10?8 M F6-D3 and 10?6 M 1,25(OH)2D3, the calcification began on day 9 and increased up to day 19. Expression of mRNA for ALP and OCN reached a maximum on day 4 and thereafter declined. On the other hand, when osteoblastic cells were incubated with a low level of [1b-3H]-F6-D3- or [1b-3H]-1,25(OH)2D3, each radioactive peak could not be detected. However, on the incubation of osteoblastic cells and radioactive substrate in the presence of ketoconazole, a selective inhibitor of CYP24, a clear peak for each substrate was detected. This suggested that F6-D3 as well as 1,25(OH)2D3 is metabolized by CYP24. Osteoblastic cells were incubated with 10?8 M[1b-3H]-F6-D3 or 10?8 M[1b-3H]-1,25(OH)2D3 for 4, 9, and 14 days. A small peak of 1,25(OH)2D3 was observed and thereafter its level decreased. In addition, two unknown peaks increased when the culture period was extended. In the case of F6-D3, peaks of F6-D3 and 26,27-hexafluoro-23-oxo-1a,25(OH)2D3(23-oxo-F6) were clearly detected, the latter being about 4 times higher than the former. Both peaks was retained up to day 14. The amount of unlabeled F6-D3 and 23-oxo-F6 calculated from the specific radioactivity in the cells may be similar to the amount of 1,25(OH)2D3 and its metabolites. The strong activity of F6-D3 in stimulating calcification may be due to the fact that F6-D3 is much more potent than 1,25(OH)2D3 in enhancing the expression of mRNA for ALP, OCN, and OPN and that the amount of F6-D3 and 23-oxo-F6 accumulated in the cells is much greater than that of 1,25(OH)2D3 and its metabolite.
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Affiliation(s)
- T Miyahara
- Department of Toxicology, Faculty of Pharmaceutical Sciences, Toyama Medical & Pharmaceutical University, 2630 Sugitani, Japan.
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Hayakawa T, Takamura T, Hisada A, Abe T, Nomura G, Kobayashi K. IL-6 gene polymorphism -174G/C does not contribute substantially to hyperlipidaemia and Type II diabetes mellitus in Japanese men. Diabetologia 2002; 45:453-4. [PMID: 11914754 DOI: 10.1007/s00125-001-0722-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Takamura T, Lim K, Van Tuyl J. EFFECT OF A NEW COMPOUND ON THE MITOTIC POLYPLOIDIZATION OF LILIUM LONGIFLORUM AND ORIENTAL HYBRID LILIES. ACTA ACUST UNITED AC 2002. [DOI: 10.17660/actahortic.2002.572.3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Watanabe T, Nukaya H, Terao Y, Takahashi Y, Tada A, Takamura T, Sawanishi H, Ohe T, Hirayama T, Sugimura T, Wakabayashi K. Synthesis of 2-phenylbenzotriazole-type mutagens, PBTA-5 and PBTA-6, and their detection in river water from Japan. Mutat Res 2001; 498:107-15. [PMID: 11673076 DOI: 10.1016/s1383-5718(01)00273-x] [Citation(s) in RCA: 29] [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] [Indexed: 10/27/2022]
Abstract
We previously determined the chemical structures of four 2-phenylbenzotriazole mutagens (PBTA-1, -2, -3 and -4) in blue rayon-adsorbed material from the Nishitakase River in Kyoto prefecture and the Nikko River in Aichi prefecture in Japan. On the basis of a synthesis study, these four PBTA derivatives were deduced to have originated from corresponding dinitrophenylazo dyes by reduction and chlorination. 2-[(2-Bromo-4,6-dinitrophenyl)azo]-5-[bis(2-acetoxyethyl) amino]-4-methoxyacetanilide (Color Index Name, Disperse Blue 79:1; CAS Registry Number, 75497-74-4) is a very common dinitrophenylazo dye used in textile dyeing factories. In the present study, we synthesized 2-[4-[bis(2-acetoxyethyl)amino]-2-(acetylamino)-5-methoxyphenyl]-5-amino-7-bromo-4-chloro-2H-benzotriazole (PBTA-5) from Disperse Blue 79:1 by reduction with sodium hydrosulfite and subsequent chlorination with sodium hypochlorite. On hydrolysis of PBTA-5 with alkali, 2-[2-(acetylamino)-4-[bis(2-hydroxyethyl)amino]-5-methoxyphenyl]-5-amino-7-bromo-4-chloro-2H-benzotriazole (PBTA-6) was obtained. Both PBTA-5 and -6 were potent mutagens, inducing 723,000 revertants and 485,000 revertants per microgram of Salmonella typhimurium YG1024, respectively, in the presence of S9 mix. To clarify whether PBTA-5 and -6 exist in the environment, water samples were collected from five rivers flowing through regions where textile dyeing industries are developed. PBTA-6 was detected at levels of 3-134 ng/g blue rayon in all water samples that were examined. On the other hand, the amount of PBTA-5 in the samples was less than the detection limit.
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Affiliation(s)
- T Watanabe
- Department of Public Health, Kyoto Pharmaceutical University, 5 Nakauchicho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan.
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Asahi H, Iwasa Y, Komatsu K, Hirata A, Koshida K, Namiki M, Mizukami Y, Yamamoto H, Takamura T, Nagai Y, Kobayashi K. [A case of plasmacytoma involving adrenal gland]. Hinyokika Kiyo 2001; 47:629-31. [PMID: 11692599] [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: 02/22/2023]
Abstract
We report a case of extramedullary plasmacytoma involving the right adrenal gland. A 52-year-old male was introduced under diagnosis of right adrenal tumor which was found incidentally by computerized tomography in a health check up. Laboratory data showed the presence of M protein and elevation of monoclonal lambda type IgG. It was a hormonally non-active tumor involving the adrenal area. Extramedullary plasmacytoma was confirmed by histological analysis of the resected specimen after laparoscopic right adrenalectomy. Extramedullary plasmacytoma is an uncommon neoplasm and occurs most frequently in the upper respiratory tract and is fairly rare in the adrenal area.
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Affiliation(s)
- H Asahi
- Department of Urology, Kanazawa University School of Medicine
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Abstract
High-resolution imaging has led to the increasingly frequent discovery of adrenal incidentalomas. Most are nonfunctioning tumours and adenomas, but it is difficult to distinguish benign from malignant tumours using only morphological and laboratory data, and the diagnosis often remains uncertain without histological examination. Here we report the case of a 52-year-old Japanese man who had a right adrenal incidentaloma 4 cm in diameter. The tumour was removed by laparoscopic adrenalectomy. The pathology specimen revealed the typical histology of plasmacytoma. Extramedullary plasmacytoma is a very rare type of plasma cell proliferative disorder. This is the first documented case of an extramedullary plasmacytoma in the adrenal gland.
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Affiliation(s)
- T Kahara
- First Department of Internal Medicine, School of Medicine, Kanazawa University, Kanazawa, Ishikawa, Japan
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Ohnishi S, Murata M, Oikawa S, Totsuka Y, Takamura T, Wakabayashi K, Kawanishi S. Oxidative DNA damage by an N-hydroxy metabolite of the mutagenic compound formed from norharman and aniline. Mutat Res 2001; 494:63-72. [PMID: 11423346 DOI: 10.1016/s1383-5718(01)00177-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Norharman (9H-pyrido[3,4-b]indole), which is a heterocyclic amine included in cigarette smoke or cooked foodstuffs, is not mutagenic itself. However, norharman reacts with non-mutagenic aniline to form mutagenic aminophenylnorharman (APNH), of which DNA adducts formation and hepatocarcinogenic potential are pointed out. We investigated whether N-OH-APNH, an N-hydroxy metabolite of APNH, can cause oxidative DNA damage or not, using 32P-labeled DNA fragments. N-OH-APNH caused Cu(II)-mediated DNA damage. When an endogenous reductant, beta-nicotinamide adenine dinucleotide (NADH) was added, the DNA damage was greatly enhanced. Catalase and a Cu(I)-specific chelator inhibited DNA damage, suggesting the involvement of H(2)O(2) and Cu(I). Typical -*OH scavenger did not inhibit DNA damage. These results suggest that the main reactive species are probably copper-hydroperoxo complexes with DNA. We also measured 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) formation by N-OH-APNH in the presence of Cu(II), using an electrochemical detector coupled to a high-pressure liquid chromatograph. Addition of NADH greatly enhanced 8-oxodG formation. UV-VIS spectra and mass spectra suggested that N-OH-APNH was autoxidized to nitrosophenylnorharman (NO-PNH). We speculated that NO-PNH was reduced by NADH. Cu(II) facilitated the redox cycle. In the presence of NADH and Cu(II), very low concentrations of N-OH-APNH could induce DNA damage via redox reactions. We conclude that oxidative DNA damage, in addition to DNA adduct formation, may play an important role in the expression of genotoxicity of APNH.
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Affiliation(s)
- S Ohnishi
- Department of Hygiene, Mie University School of Medicine, 2-174 Edobashi, Tsu, 514-8507, Mie, Japan
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Takamura T, Nohara E, Nagai Y, Kobayashi K. Stage-specific effects of a thiazolidinedione on proliferation, differentiation and PPARgamma mRNA expression in 3T3-L1 adipocytes. Eur J Pharmacol 2001; 422:23-9. [PMID: 11430909 DOI: 10.1016/s0014-2999(01)01053-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [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: 11/18/2022]
Abstract
To clarify the target phase of thiazolidinediones, which are ligands for peroxisome proliferator-activated receptor (PPAR)gamma, during adipocyte differentiation, the effects of a thiazolidinedione, pioglitazone, on every stage during the course of adipocyte differentiation were investigated. Pioglitazone did not affect the cellular protein content and [3H]thymidine incorporation into preconfluent 3T3-L1 preadipocytes. Induction of differentiation of confluent 3T3-L1 preadipocytes with insulin, dexamethasone and isomethylbutylxanthine for 48 h resulted in 30% inhibition of [3H]thymidine incorporation into the cells and 354% increase in cellular protein content. Pioglitazone at 1 microM accelerated the increase in cellular protein content by 33% and the inhibition in the [3H]thymidine incorporation by 12%. Pioglitazone, when added from the start of the induction stage, dose-dependently enhanced cellular triglyceride accumulation, and both basal and insulin-stimulated glucose transporting activity producing only a slight increase in the ratio of insulin stimulation to basal glucose transporting activity. In mature adipocytes, however, pioglitazone did not enhance either of the transporting activities. PPARgamma messenger RNA (mRNA) levels estimated by a semi-quantitative reverse transcriptase-polymerase chain reaction (RT-PCR) increased during the course of adipocyte differentiation. Although pioglitazone dose-dependently up-regulated PPARgamma mRNA levels in postconfluent preadipocytes without induction, it down-regulated them in mature adipocytes. Thus, a PPARgamma agonist, pioglitazone, arrested the growth, and increased protein content and PPARgamma mRNA levels in postconfluent preadipocytes, followed by commitment and hypertrophy of 3T3-L1 cells without changing insulin sensitivity, whereas it failed to stimulate glucose transporting activities and down-regulated PPARgamma mRNA expression in mature adipocytes.
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Affiliation(s)
- T Takamura
- First Department of Internal Medicine, School of Medicine, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8641, Japan.
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Takamura T, Nagai Y, Taniguchi M, Yamashita H, Nakamura S, Ikeda T, Kobayashi K, Suzuki T, Sasano H. Adrenocorticotropin-independent unilateral adrenocortical hyperplasia with Cushing's syndrome: Immunohistochemical studies of steroidogenic enzymes, ultrastructural examination and a review of the literature. Pathol Int 2001; 51:118-22. [PMID: 11169151 DOI: 10.1046/j.1440-1827.2001.01169.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [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: 11/20/2022]
Abstract
A 60-year-old woman presented with a history of palpitations, headaches and severe hypertension, which was resistant to hypotensive agents. She had a 2-year history of obesity and a moon face. Her plasma adrenocorticotropic hormone level was below the limits of detection and did not respond to corticotropin-releasing hormone. Urinary-free cortisol was elevated and the circadian rhythm of serum cortisol level had completely disappeared. Imaging analysis demonstrated a unilaterally functioning mass in the left adrenal gland. Serum cortisol level in the left adrenal vein was elevated. The resected adrenal mass measured 4 x 3.5 x 2.5 cm, and ranged from yellow to tan in color. The adrenal cortex adjacent to the nodule did not demonstrate cortical atrophy. The mass was well circumscribed but not encapsulated, and consisted of multiple cortical nodules. These nodules were composed predominantly of clear cortical cells, and partly of compact cortical cells. Immunoreactivity of steroidogenic enzymes including cholesterol side-chain-cleavage P450, 3beta-hydroxysteroid dehydrogenase, 21-hydroxylase cytochrome P450, 11beta-hydroxylase cytochrome P450 and 17alpha-hydroxylase cytochrome P450 was marked in cortical nodules, but minimal in non-nodular cortex. Ultrastructural examination of nodular cortical cells also demonstrated well-developed mitochondria and smooth endoplasmic reticulum, consistent with elevated steroidogenesis in these cells.
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Affiliation(s)
- T Takamura
- First Department of Internal Medicine, School of Medicine, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8641, Japan.
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Ando H, Nishimura Y, Nemoto T, Takamura T, Nagai Y, Kobayashi K. Severe hypercholesterolemia in a double heterozygote for lipoprotein lipase deficiency (LPL(Arita)) and apolipoprotein epsilon4: a report of a family with LPL(Arita). Endocr J 2001; 48:113-8. [PMID: 11403097 DOI: 10.1507/endocrj.48.113] [Citation(s) in RCA: 2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Although heterozygous lipoprotein lipase (LPL) deficiency is not rare, only part of the phenotypes may have been reported in Japan. Here we describe a Japanese family with LPL(Arita), the most common mutation linked to familial LPL deficiency in Japan, and show for the first time a heterozygote for the mutation who had marked hypercholesterolemia due to increased low-density lipoprotein (LDL) cholesterol. The proband's mother, one of the heterozygotes for LPL(Arita) in the family, had both severe hypercholesterolemia (total cholesterol 306 mg/dl) with an especially increase in LDL-cholesterol and mild hypertriglyceridemia (180 mg/dl). She had normal LDL receptor activity and did not show clear evidence of possible causes of secondary hyperlipidemia. In addition to being heterozygous for LPL deficiency, she was also heterozygous for apo epsilon4. Because the epsilon4 allele is known to be associated with higher LDL-cholesterol, heterozygous apo epsilon4 may be one of causes of her LDL-cholesterol elevation. The other three heterozygotes for LPL(Arita) were moderate drinkers, and all of them had both remarkable hypertriglyceridemia and mild hypercholesterolemia due to increased very-low-density lipoproteins (VLDL). The results suggest that heterozygotes for LPL(Arita) can exhibit various phenotypes of hyperlipidemia, that is, hypertrigliceridemia and/or hypercholesterolemia due to not only increased VLDL but also increased LDL. The phenotypes appear to depend on some other genetic and environmental factors.
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Affiliation(s)
- H Ando
- First Department of Internal Medicine, School of Medicine, Kanazawa University, Ishikawa, Japan
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Hayakawa T, Nagai Y, Taniguchi M, Yamashita H, Takamura T, Abe T, Nomura G, Kobayashi K. Tumor necrosis factor-beta gene NcoI polymorphism decreases insulin resistance in Japanese men. Metabolism 2000; 49:1506-9. [PMID: 11092520 DOI: 10.1053/meta.2000.17710] [Citation(s) in RCA: 16] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Given that the NcoI polymorphism of the tumor necrosis factor-beta (TNF-beta) gene has been shown to be associated with tumor necrosis factor-alpha (TNF-alpha) secretory capacity, we know that this TNF-beta gene polymorphism may influence insulin resistance. In Caucasians, 2 polymorphisms of the TNF-alpha promoter region (positions -308 and -238) have been reported to be associated with insulin resistance. Thus, we investigated how genetic variation in the TNF-beta and TNF-alpha genes was associated with insulin resistance in 211 Japanese men. The frequency of the TNF-beta gene polymorphism was 0.41, and insulin resistance, estimated by homeostasis model assessment (HOMA), was significantly lower in variant homozygotes versus wild-type allele. The frequencies of the -308 and -238 polymorphisms were 0.01 and 0.02, respectively, and these polymorphisms were not associated with insulin resistance. Our results suggest that the TNF-beta gene polymorphism decreases insulin resistance, and that the -308 and -238 polymorphisms of the TNF-alpha promoter region are not a major contributing factor to insulin resistance in Japanese men.
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Affiliation(s)
- T Hayakawa
- First Department of Internal Medicine, School of Medicine, Kanazawa University, Japan
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Miyahara T, Gomyo S, Ueda Y, Ohyama Y, Sigeno C, Kozakai A, Takamura T, Yamazaki R, Higuchi S, Yamamoto M, Sakuma T, Nemoto N. Metabolism of 26,27-hexafluoro-1 alpha,25-dihydroxyvitamin D3 and 26,27-hexafluoro-1 alpha,23(S)25-trihydroxyvitamin D3 in ROS17/2.8 cells transfected with a plasmid expressing CYP24. Xenobiotica 2000; 30:1055-62. [PMID: 11197067 DOI: 10.1080/00498250010002496] [Citation(s) in RCA: 2] [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: 10/17/2022]
Abstract
1. To clarify the possibility that the metabolism of 26,27-hexafluoro-1 alpha,25-dihydroxyvitamin D3 [F6-1,25(OH)2D3] to 26,27-hexafluoro-1 alpha,23(S),25-trihydroxyvitamin D3 [F6-1,23,25(OH)3D3 and that of F6-1,23,25(OH)3D3 to 26,27-hexafluoro-23-oxo-1 alpha,25-dihydroxyvitamin D3 [F6-23-oxo-1,25(OH)2D3] are catalysed by 25-hydroxyvitamin D3 24-hydroxylase (CYP24), ROS17/2.8 cells transfected with a plasmid expressing CYP24 [pSVL-CYP24(+)] and a corresponding blank plasmid [pSLV-CYP24R(-)] were used. 2. Incubation of [1 beta-3H]-F6-1,25(OH)2D3 for 2 and 5 days with ROS17/2.8 cells transfected with pSVL-CYP24(+) generated a metabolite that co-migrated with authentic F6-1,23,25(OH)3D3 in both normal phase and reversed-phase HPLC systems. 3. Incubation of [1 beta-3H]-F6-1,23,25(OH)3D3 for 5 days with pSVL-CYP24(+)- transfected ROS 17/2.8 cells generated a metabolite that co-migrated with authentic F6-23-oxo-1,25(OH)2D3. In contrast, the metabolites F6-1,23,25(OH)3D3 or F6-23-oxo-1,25(OH)2D3 were not generated in the cells transfected with pSVL-CYP24R(-). 4. The results indicate that CYP24 catalyses the conversion of F6-1,25(OH)2D3 to F6-1,23,25(OH)3D3 and that of F6-1,23,25(OH)3D3 to F6-23-oxo-1,25(OH)2D3.
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Affiliation(s)
- T Miyahara
- Department of Toxicology, Faculty of Pharmaceutical Sciences, Toyama Medical & Pharmaceutical University, 2630 Sugitani, Toyama-shi, Toyama, 930-0194, Japan
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Nagai Y, Yamashita H, Nohara E, Takamura T, Kobayashi K. Ischemic colitis probably induced by refractory constipation after voglibose administration in a patient with total gastrectomy. Intern Med 2000; 39:861. [PMID: 11030217 DOI: 10.2169/internalmedicine.39.861] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Y Nagai
- First Department of Internal Medicine, School of Medicine, Kanazawa University
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