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Shibata T, Seki Y, Seida Y, Yoshita T, Tsuchiya S, Sasaki H, Kubo E. Progressive hyperopic refractive changes after posterior capsule tear following blunt ocular trauma. Am J Ophthalmol Case Rep 2024; 34:102032. [PMID: 38464501 PMCID: PMC10921238 DOI: 10.1016/j.ajoc.2024.102032] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/06/2024] [Accepted: 02/20/2024] [Indexed: 03/12/2024] Open
Abstract
Purpose To describe the mechanism of progressive hyperopia and its management in the long-term course of traumatic cataract with a posterior capsule tear (PCT) following blunt ocular trauma. Observation A 37-year-old woman presented with blurry vision and photophobia after being hit in the right eye by a slipper. She was found to have PCT with the formation of a traumatic cataract with emmetropia (0 diopters [D]). Three years after the injury, a broader hyperopic change of +8.0 D was found in the patient at her first visit to our clinic. Optical coherence tomography (OCT) analysis of the anterior segment of the eye revealed damage to the posterior capsule and cataracts due to disorganization of the lens fibers and liquefaction of the lens. Femtosecond laser-associated cataract surgery was performed for anterior capsulotomy and segmentation of the nucleus without further enlargement of the PCT, facilitating the placement of a capsular tension ring segment and a multifocal intra ocular lens (IOL) in the capsular bag. At 1-month post-operation, her uncorrected visual acuity was 20/20 in the right eye, with a well-centered IOL. Conclusions and Importance Isolated PCT due to blunt trauma is rare, and there have been no reports of progressive hyperopia after three years of follow-up. In such cases, the lens may liquefy, resulting in decreased refraction and significant hyperopia.
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Affiliation(s)
- Teppei Shibata
- Department of Ophthalmology, Kanazawa Medical University, Ishikawa, Japan
| | - Yusuke Seki
- Department of Ophthalmology, Kanazawa Medical University, Ishikawa, Japan
| | - Yukiya Seida
- Department of Ophthalmology, Kanazawa Medical University, Ishikawa, Japan
| | | | - Shunsuke Tsuchiya
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Science, Ishikawa, Japan
| | - Hiroshi Sasaki
- Department of Ophthalmology, Kanazawa Medical University, Ishikawa, Japan
| | - Eri Kubo
- Department of Ophthalmology, Kanazawa Medical University, Ishikawa, Japan
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Nakazawa K, Higashide T, Tsuchiya S, Shioya S, Okayama M, Sugiyama K. Association of Ambulatory Blood Pressure and Other Factors With Intraocular Pressure-Related 24-Hour Contact Lens Sensor Profile in Untreated Glaucoma. Transl Vis Sci Technol 2022; 11:18. [PMID: 36223126 PMCID: PMC9583745 DOI: 10.1167/tvst.11.10.18] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose To investigate the association of diurnal blood pressure (BP) and other factors with the intraocular pressure (IOP)–related 24-hour contact lens sensor (CLS) profile of patients with untreated glaucoma. Methods The prospective study included 82 patients with untreated normal-tension glaucoma. CLS measurements and ambulatory BP monitoring were performed simultaneously for 24 hours. The association between the mean arterial pressure (MAP) and CLS profile was examined for the daytime and nocturnal periods using linear regression analysis. The associations between other factors and the CLS profile were also examined. Results Multivariate analysis of data from 63 eligible patients showed that higher average MAPs were significantly associated with larger average nocturnal CLS values (β coefficient = 0.273; P = 0.023); a larger increase in the last CLS value (β coefficient = 0.366; P = 0.003); larger standard deviations (SDs) of CLS values for the daytime, nocturnal, and 24-hour periods (β coefficient = 0.407, 0.293, and 0.375; P < 0.001, P = 0.032 and 0.002, respectively); and higher average ocular pulse frequencies for the daytime, nocturnal, and 24-hour periods (β coefficient = 0.268, 0.380, and 0.403; P = 0.029, 0.002, and 0.001, respectively). Thicker subfoveal choroids and shorter axial length were significantly associated with larger SDs and larger average CLS values, respectively. Smaller anterior chamber volume and lower corneal hysteresis were associated with larger SDs or larger average ocular pulse amplitude. Conclusions Ambulatory BP and several ocular parameters were significantly associated with various parameters of the 24-hour CLS profile. Translational Relevance Ambulatory BP and ocular parameters may be modifiers of the 24-hour IOP-related profile of CLS.
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Affiliation(s)
- Kazuki Nakazawa
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan.,Department of Ophthalmology, Hakui General Hospital, Ishikawa, Japan
| | - Tomomi Higashide
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Shunsuke Tsuchiya
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Satomi Shioya
- Department of Ophthalmology, Noto General Hospital, Ishikawa, Japan
| | - Masahiko Okayama
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan.,Department of Ophthalmology, Nanto Municipal Hospital, Toyama, Japan
| | - Kazuhisa Sugiyama
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
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Ichinose T, Misaki K, Uchiyama N, Kamide T, Nambu I, Yoshikawa A, Tsuchiya S, Nakada M. Late complications of visual impairment and hydrocephalus after flow diverter-assisted coil embolisation for intracranial large aneurysm: a case report and literature review. Br J Neurosurg 2022:1-5. [PMID: 35015601 DOI: 10.1080/02688697.2021.2024502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 06/01/2021] [Revised: 12/01/2021] [Accepted: 12/27/2021] [Indexed: 11/02/2022]
Abstract
Large or giant paraclinoid aneurysms typically have good indication for flow diverter (FD) treatment. Here, we report a very rare case of a patient with an unruptured supraclinoid large aneurysm who underwent FD deployment with coil embolisation that resulted in delayed visual field defect (VFD) and hydrocephalus. A 75-year-old woman with a large right supraclinoid aneurysm presented with severe hemianopia in the right eye. She underwent FD deployment with coil embolisation of the aneurysm. However, permanent left visual field loss occurred four months after surgery. Magnetic resonance imaging (MRI) showed severe oedema surrounding the aneurysm along the optic tract. Inflammation led to postoperative hydrocephalus, requiring ventriculoperitoneal shunt placement. To the best of our knowledge, this is the first report of both a delayed VFD and hydrocephalus following FD treatment. In cases of FD treatment with coil embolisation for large paraclinoid aneurysms, clinicians should keep in mind that postoperative visual impairment or/and hydrocephalus may occur.
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Affiliation(s)
- Toshiya Ichinose
- Department of Neurosurgery, Kanazawa University, Kanazawa, Japan
| | - Kouichi Misaki
- Department of Neurosurgery, Kanazawa University, Kanazawa, Japan
| | - Naoyuki Uchiyama
- Department of Neurosurgery, Ishikawa Prefectural Central Hospital, Kanazawa, Japan
| | - Tomoya Kamide
- Department of Neurosurgery, Kanazawa University, Kanazawa, Japan
| | - Iku Nambu
- Department of Neurosurgery, Kanazawa University, Kanazawa, Japan
| | | | - Shunsuke Tsuchiya
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
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Tsuchiya S, Higashide T, Hatake S, Sugiyama K. Effect of inhalation anesthesia with isoflurane on circadian rhythm of murine intraocular pressure. Exp Eye Res 2020; 203:108420. [PMID: 33359512 DOI: 10.1016/j.exer.2020.108420] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/24/2020] [Accepted: 12/21/2020] [Indexed: 01/01/2023]
Abstract
PURPOSE For research on circadian intraocular pressure (IOP), rebound tonometers are widely used with or without general anesthesia as a non-invasive approach to obtain IOP values. However, whether general anesthesia such as inhalation anesthesia with isoflurane affects the circadian rhythm of IOP and in turn IOP measurements is currently unclear. As such, data reporting IOP values obtained under general anesthesia should be interpreted with caution. The purpose of this study was to evaluate how general anesthesia with isoflurane inhalation affects the circadian rhythm of IOP. METHODS C57Bl/6J strain mice maintained using a 12h:12h light/dark cycle (lights on and off at ZT0 and ZT12, respectively) were used. IOPs were measured using a rebound tonometer (Icare TonoLab) before and 3, 5, 10, 15, and 30 min after initiating anesthesia in both light and dark phases (ZT 2-6 and ZT 14-18, respectively). Awake IOPs and IOPs at 3 and 5 min after anesthesia initiation were also obtained at ZT5, 8, 11, 14, 17, and 20 to assess IOP diurnal curves under gas anesthesia. RESULTS IOP values gradually decreased after anesthesia initiation in both light and dark phases (P < 0.001) and there was no interaction between light/dark phase and anesthesia time (P = 0.88). There was a slight, but not significant, reduction in IOP 3 min after initiating anesthesia (P = 0.23), and significant decreases in IOP occurred at subsequent timepoints (P ≤ 0.001). Both awake and anesthetized mice showed a robust IOP rhythm that reached a peak and trough in the dark and light phase, respectively. Awake IOP levels did not significantly differ from those for anesthetized mice at 3 min after anesthesia initiation at all time points (P ≥ 0.07). CONCLUSIONS Both awake and anesthetized mice demonstrated a robust circadian rhythm for IOP. Murine IOP showed similar gradual decreases under inhalation anesthesia with isoflurane in both the light and dark phases. IOPs measured using a rebound tonometer within 3 min of initiating isoflurane anesthesia were comparable to awake IOPs, and thus may be useful to monitor the circadian rhythm of IOP in mice.
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Affiliation(s)
- Shunsuke Tsuchiya
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Tomomi Higashide
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan.
| | - Sachiyo Hatake
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Kazuhisa Sugiyama
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
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Shioya S, Higashide T, Tsuchiya S, Simon‐Zoula S, Varidel T, Cerboni S, Mansouri K, Sugiyama K. Using 24-hr ocular dimensional profile recorded with a sensing contact lens to identify primary open-angle glaucoma patients with intraocular pressure constantly below the diagnostic threshold. Acta Ophthalmol 2020; 98:e1017-e1023. [PMID: 32339402 DOI: 10.1111/aos.14453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 10/24/2019] [Accepted: 04/03/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE To evaluate the use of a 24-hr ocular dimensional profile recorded with a contact lens sensor (CLS) combined with a single tonometric intraocular pressure (IOP) reading to indicate the potential for exceeding the diagnostic threshold for normal tension glaucoma (NTG) in Japanese patients. METHODS Intraocular pressure (IOP) of untreated Japanese NTG patients was measured with tonometry every 3 hr from 9:00 to 24:00. The subsequent day a 24-hr CLS (SENSIMED Triggerfish, Sensimed AG, Lausanne, Switzerland) profile was recorded on the same eye. Patients initially diagnosed as NTG were reclassified as NTG when the measured IOP values were consistently <20 mmHg or as primary open-angle glaucoma (POAG) when IOP was ≥20 mmHg in at least 1 measurement. For each patient and each IOP time-point, IOP values were combined with information provided by the CLS profile ('classifier') to indicate the potential for exceeding the diagnostic threshold value. Statistical analyses were performed for each classifier. RESULTS A total of 65 patients, 28 males and 37 females (mean ages: 50.8 ± 14.6 years and 52.6 ± 10.2 years, respectively), were analysed. Following IOP diurnal measurement, five patients (7.7%) were reclassified as POAG. Two classifiers (15:00 CLS and 18:00 CLS) showed high sensitivity and negative predictive value (100%), identifying all the POAG patients. CONCLUSION Contact lens sensor information can be used in conjunction with a single tonometric reading to determine patients' potential of having IOP levels exceeding the diagnostic threshold within a 24-hr period, without the need to perform a 24-hr tonometric curve. This would allow clinicians to identify POAG patients who may otherwise be eventually misclassified as NTG.
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Affiliation(s)
- Satomi Shioya
- Department of Ophthalmology and Visual Science Kanazawa University Graduate School of Medical Science Kanazawa Japan
| | - Tomomi Higashide
- Department of Ophthalmology and Visual Science Kanazawa University Graduate School of Medical Science Kanazawa Japan
| | - Shunsuke Tsuchiya
- Department of Ophthalmology and Visual Science Kanazawa University Graduate School of Medical Science Kanazawa Japan
| | | | | | | | - Kaweh Mansouri
- Glaucoma Research Center Montchoisi Clinic Swiss Vision Network Lausanne Switzerland
- Department of Ophthalmology University of Colorado Denver CO USA
| | - Kazuhisa Sugiyama
- Department of Ophthalmology and Visual Science Kanazawa University Graduate School of Medical Science Kanazawa Japan
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Watanabe T, Matsumoto Y, Amamizu H, Morosawa S, Ohyama K, Sugisawa J, Tsuchiya S, Sato K, Shindo T, Nishimiya K, Watanabe-Asaka T, Hayashi M, Kawai Y, Shimokawa H. A novel therapeutic approach for coronary inflammation and lymphatic vessels using non-invasive low-intensity pulsed ultrasound in a porcine model with DES-induced coronary hyperconstricting responses. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The coronary adventitia harbors lymphatic vessels (LVs). We previously demonstrated that coronary adventitial inflammation and LV dysfunction play important roles in the pathogenesis of coronary artery spasm, including drug-eluting stent (DES)-induced coronary hyperconstricting responses, in pigs and humans. However, a direct therapeutic approach to the coronary adventitia remains to be developed.
Purpose
In this study, we aimed to examine whether our novel and non-invasive therapy with low-intensity pulsed ultrasound (LIPUS) ameliorates DES-induced coronary hyperconstricting responses, and if so, what mechanisms are involved.
Methods
An everolimus-eluting stent (EES) was implanted into the left anterior descending (LAD) coronary artery in normal male pigs. They were randomly assigned to the LIPUS or the sham therapy groups. After EES implantation, in the LIPUS group, LIPUS (32 cycles, 193 mW/cm2) was applied to the heart at 3 different levels (proximal and distal stent edges and middle portion of the stent) through X-ray fluoroscopy for 20 min at each level for every other day for 2 weeks (6 days in total) (Fig. 1A, B). The sham therapy group was treated in the same manner but without LIPUS. At 4 weeks after the procedure, we performed coronary angiography to examine coronary vasoconstricting responses to intracoronary serotonin in vivo. Finally, stented coronary vessels were harvested for immunohistochemistry of vasa vasorum (vWF), LVs (LYVE-1), vascular inflammation (CD68-positive macrophages and IL-1β expression), vascular endothelial growth factor A (VEGF-A, angiogenesis marker), VEGF-C and VEGF receptor 3 (VEGFR3, lymphangiogenesis markers).
Results
Coronary vasoconstricting responses to intracoronary serotonin at the DES edges in the LAD were significantly enhanced in the sham group but were significantly suppressed in the LIPUS group, while those responses were comparable at the non-DES implanted left circumflex (LCx) coronary artery between the 2 groups (Fig. 1C, D). In addition, in vivo lymph transport speed was significantly faster in the LIPUS group than in the sham group (Fig. 1E–G). In histological analysis, the number of LVs was significantly increased in the LIPUS group compared with the sham group, whereas those of CD68 and IL-1β expressions were significantly reduced in the LIPUS group compared with the sham group. In contrast, the density of vasa vasorum was comparable between the 2 groups. Mechanistically, the extents of VEGF-C and VEGFR3 expressions were increased in the LIPUS group, whereas that of VEGF-A was comparable between the 2 groups (Fig. 1G–K). Importantly, there were significant correlations among the LV-related changes and enhanced coronary vasoconstricting responses.
Conclusion
These results provide the first evidence that the LIPUS therapy ameliorates DES-induced coronary hyperconstricting responses in pigs in vivo through structural and functional alterations of LVs (Fig. 1L).
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Watanabe
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Amamizu
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Morosawa
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Ohyama
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Sato
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Nishimiya
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Watanabe-Asaka
- Tohoku Medical and Pharmaceutical University, Physiology, Sendai, Japan
| | - M Hayashi
- Tohoku Medical and Pharmaceutical University, Physiology, Sendai, Japan
| | - Y Kawai
- Tohoku Medical and Pharmaceutical University, Physiology, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Sendai, Japan
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Tsuchiya S, Saiga A, Yokota H, Kubota Y, Wada T, Akutsu A, Horikoshi T, Uno T. Abstract No. 402 Prophylactic steroids for preventing post embolization syndrome after transcatheter arterial embolization for renal angiomyolipoma. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Tsuchiya S, Matsumoto Y, Suzuki H, Kikuchi Y, Sugisawa J, Shindo T, Hao K, Takeuchi M, Takahashi J, Kumagai K, Wagatsuma T, Saiki Y, Shimokawa H. 92Transcatheter aortic valve implantation improves cerebral blood flow and cognitive function in elderly patients with aortic stenosis - Brain perfusion SPECT imaging study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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
Cognitive impairment and depression are commonly noted in elderly frail patients with severe aortic stenosis (AS). However, their mechanisms and reversibility after treatment remain remain to be examined.
Purpose
In this study, we examined whether transcatheter aortic valve implantation (TAVI) increases cerebral blood flow (CBF) in cognitive/emotional brain areas, such as the hippocampus, in the elderly patients with severe AS.
Methods
We examined consecutive 15 right-handed patients with severe AS who were eligible for TAVI (median age 83.2 years, 12 (80%) women). We evaluated the following assessments both at baseline and 3 months after TAVI. Frailty was evaluated based on Fried scale, which consists of 5 items, including gait speed, cognitive function, weight loss, exhaustion, and inactivity. Frail and pre-frail were defined as greater than 3 and 1∼2 in the scale, respectively. Cognitive and emotional status were evaluated with Logical Memory (LM) II, Mini Mental State Examination (MMSE), and geriatric depression scale (GDS). Lower LM II (less than 4 points) and MMSE (less than 24 points) and higher GDS (more than 6 points) indicate worse memory, general cognitive function, and depressive symptoms, respectively. CBF images were recorded with 99mTc single-photon emission computed tomography and were analyzed using SPM12. Briefly, CBF images were firstly normalized to the standard Montreal Neurological Institute space. Then, a voxel-wise parametric analysis was conducted between normalized CBF images at baseline and those after TAVI (P<0.005 at each voxel). Continuous variables were presented as mean ± standard error (SE). Normality was assessed using the Shapiro-Wilk test. Continuous variables were compared with the use of paired t test. Linear mixed-model analysis was performed to evaluate changes in neuropsychological tests and CBF over time.
Results
In the present study, all patients were not robust but pre-frail (47.3%) or frail (53.7%). LM II score was significantly improved at 3 months after TAVI compared with baseline (baseline, 8.7 vs. 3 months, 13.8, P<0.01) (Figure A), whereas no significant changes in MMSE or GDS scores were noted (baseline, 24.6 vs. 3 months, 25.2 for MMSE; baseline, 4.3 vs. 3 months, 4.2 for GDS). Importantly, although no patients showed clinical symptoms or signs for transient ischemic attack or stroke after TAVI, CBF in the local regions, including the right hippocampus, was significantly increased after TAVI compared with baseline (P<0.005 at each voxel) (green arrowheads) (Figure B). Furthermore, CBF in the right hippocampus were positively correlated with LM II scores (P=0.017) (Figure C).
Figure 1
Conclusions
These results provide the first evidence that TAVI improves cerebral perfusion (especially that in the hippocampus) and cognitive functions in elderly patients with severe AS.
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Affiliation(s)
- S Tsuchiya
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - H Suzuki
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - M Takeuchi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - K Kumagai
- Tohoku University Graduate School of Medicine, Cardiovascular Surgery, Sendai, Japan
| | - T Wagatsuma
- Tohoku University Graduate School of Medicine, Anesthesiology and Perioperative Medicine, Sendai, Japan
| | - Y Saiki
- Tohoku University Graduate School of Medicine, Cardiovascular Surgery, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
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Hao K, Takahashi J, Suda A, Sato K, Sugisawa J, Tsuchiya S, Shindo T, Ikeda S, Kikuchi Y, Shiroto T, Matsumoto Y, Sakata Y, Shimokawa H. P3575Clinical importance of fractional flow reserve in patients with organic coronary stenosis and vasospastic angina. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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
Vasospastic angina (VSA), which is one of the important functional cardiac disorders, may also play a role in the pathogenesis of atherosclerosis. Conversely, organic coronary stenosis is also known as an independent predictor for poor clinical outcomes in VSA patients. Although VSA patients have a variable degree of organic coronary stenosis in clinical setting, the functional importance of organic stenosis in those patients remains to be elucidated.
Purpose
The aim of this study was to examine the clinical importance and prognostic impact of fractional flow reserve (FFR) in patients with VSA and organic coronary stenosis.
Methods
We enrolled 236 consecutive patients with suspected vasospastic angina who underwent acetylcholine provocation test for coronary spasm (M/F 148/88, 63.6±12.0 [SD] yrs.). Among them, 175 patients (74.1%) were diagnosed as having VSA, while the remaining non-VSA patients were regarded as controls (Group-C, n=61). We divided the VSA patients into 3 groups based on angiographical findings and FFR values; VSA with no organic stenosis (>50% luminal stenosis) (Group-N, n=110), organic stenosis and high FFR (≥0.80) (Group-H, FFR 0.87±0.05, n=36), and organic stenosis and low FFR (<0.80) (Group-L, FFR 0.71±0.07, n=29). We evaluated the incidence of major adverse cardiovascular events (MACE), including cardiovascular death (CVD), non-fatal myocardial infarction (MI), urgent percutaneous coronary intervention (PCI), and hospitalization due to unstable angina pectoris (UAP) during the median follow-up period of 656 days.
Results
The groups with organic stenosis (Groups H and L) were characterized by higher prevalence of diabetes mellitus (Group-C/N/H/L, 23.0/20.9/44.4/34.5%, P=0.03) and dyslipidemia (Group-C/N/H/L, 37.7/39.1/50.0/65.5%, P=0.03) as compared with Group-C. After provocation test, all VSA patients received calcium channel blockers (CCBs). In addition, 20 days (median) after provocation test, 26 patients (92.9%) in Group-L underwent elective PCI with coronary stents, while no patient underwent PCI in Groups N or H. The incidence of MACE during follow-up was significantly higher in Group-L (Group-C/N/H/L; 1.6/3.6/5.6/27.6%, log-rank P<0.001), whereas clinical outcomes were comparable among the remaining 3 groups (Figure). Importantly, all 8 patients with MACE in Group-L had poor outcomes (CVD/MI/urgent PCI/UAP; 2/1/3/2) despite complete revascularization and the prevention of coronary spasm with CCBs, indicating that they might be resistant to standard contemporary therapies. They were characterized by less frequent use of angiotensin convert enzyme inhibitor (0 vs. 47.6%, P=0.02) and higher prevalence of multi-vessel organic lesions (37.5 vs. 4.8%, P=0.052) compared with those without MACE.
Figure 1
Conclusions
These results provide the first evidence that evaluation of coronary functional abnormalities with FFR is useful for making therapeutic strategies in VSA patients with organic coronary stenosis.
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Affiliation(s)
- K Hao
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Sato
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Shiroto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Sakata
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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Sugisawa J, Matsumoto Y, Suda A, Ota H, Tsuchiya S, Ohyama K, Takeuchi M, Shindo T, Ikeda S, Hao K, Kikuchi Y, Takahashi J, Takase K, Kohzuki M, Shimokawa H. 3332Exercise training ameliorates vasodilator capacity of coronary microvessels in patients with vasospastic angina - A new therapeutic approach for the coronary functional disorder. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0084] [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
We have recently demonstrated that coronary vasospasm could develop in both epicardial coronary arteries and intramuscular coronary microvessels in patients with vasospastic angina (VSA). However, it remains to be examined whether vasodilator capacity of coronary microvessels is impaired in VSA patients and if so, whether exercise training could ameliorate vasodilator capacity of coronary microvessels on the top of calcium channel blockers. The effectiveness of exercise training is established for organic coronary artery disease but remained to be examined for VSA.
Purpose
We thus examined whether vasodilator capacity of coronary microvessels is impaired in VSA patients without organic coronary stenosis using an adenosine-stress dynamic computed tomography perfusion (CTP) that can measure absolute value of myocardial blood flow (MBF). We also examined whether exercise training ameliorates not only vasodilator capacity of coronary microvessels but also exercise capacity and frequency of angina attack.
Methods
In the first protocol, we measured MBF using CTP in consecutive 32 VSA patients with acetylcholine-induced diffuse coronary spasm in the left anterior descending coronary arteries (LAD) and 12 non-VSA controls. In the second protocol, we conducted a randomized controlled trial (RCT; Exercise VSA trial, UMIN: ehz745.008423996), where 20 VSA patients were randomly assigned to either exercise group (Ex group: supervised exercise training session for 30-min using bicycle ergometer, once/week at the hospital and more than 3 times/week at home) or non-exercise group (Non-Ex group) (n=10 each) (Figure A). Before and 3 months after exercise training, we measured MBF with adenosine-stress dynamic CTP and peak VO2 by cardiopulmonary exercise tests, and also assessed angina attack with Seattle Angina Questionnaire (SAQ).
Results
In the first protocol, CTP showed that adenosine-stress MBF was significantly decreased in the VSA group compared with the non-VSA group (VSA, 137.2±6.6 vs. Non-VSA, 174.4±10.7 ml/100g/min, P<0.01) (Figure B), although patient characteristics were comparable between the 2 groups. In the second protocol, exercise training was performed safely in all patients, and RCT showed that MBF was significantly increased in the Ex group compared with the non-Ex group (Figures C, D), although patient characteristics were also comparable between the 2 groups. Furthermore, peak VO2 was significantly increased in the Ex group compared with the non-Ex group (Figure E), and frequency of angina was significantly decreased in the Ex group compared with the non-Ex group (Figure F). Finally, there was a significant positive correlation between the extents of the changes in peak VO2 and the SAQ score for angina frequency in the Ex group (P<0.01, R=0.67).
Figures
Conclusions
These results provide the first evidence that vasodilator capacity of coronary microvessels is impaired in VSA patients, which can be ameliorated by exercise training.
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Affiliation(s)
- J Sugisawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Ota
- Tohoku University Graduate School of Medicine, Department of Radiology, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Ohyama
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - M Takeuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Takase
- Tohoku University Graduate School of Medicine, Department of Radiology, Sendai, Japan
| | - M Kohzuki
- Tohoku University Graduate School of Medicine, Department of Internal Medicine & Rehabilitation Science, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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Tsuchiya S, Sugiyama K, Van Gelder RN. Adrenal and Glucocorticoid Effects on the Circadian Rhythm of Murine Intraocular Pressure. Invest Ophthalmol Vis Sci 2019; 59:5641-5647. [PMID: 30481281 PMCID: PMC6735647 DOI: 10.1167/iovs.18-24785] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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] [Indexed: 11/25/2022] Open
Abstract
Purpose Intraocular pressure (IOP) fluctuates with a robust circadian rhythm, which is synchronized to organismal rhythmicity through the master circadian clock located in the suprachiasmatic nuclei. The mechanisms maintaining circadian synchrony between the suprachiasmatic nuclei and IOP rhythms are presently unknown. The purpose of this study was to evaluate the necessity and sufficiency of adrenal and glucocorticoid function for the entrainment of iris-ciliary body (iris-CB) and IOP circadian rhythms in mice. Methods Iris-CB complexes were dissected from C57Bl/6J mice that were kept in 12-hour light/dark cycles at 3-hour intervals, and their core clock gene (Per1, Per2, and Bmal1) and glucocorticoid receptor mRNA expression were quantified. Iris-CB complexes from period2::luciferase mice were dissected and cultured to measure in vitro rhythmicity. To determine the phase-shifting effect of glucocorticoids on the iris-CB, dexamethasone or vehicle was added to the cultured tissues at defined circadian phases. The diurnal IOP rhythms of adrenalectomized or sham-operated mice under the 12-hour light/dark cycles were also measured. Results In iris-CB complexes, glucocorticoid receptor mRNA expression remained stable throughout the day, whereas the mRNA of core clock genes showed a robust circadian rhythmicity. Dexamethasone significantly induced phase-delays when administered between circadian time 8 (CT8) to CT12 and phase-advance when given between CT16 to CT20. Adrenalectomy abolished circadian IOP rhythmicity, particularly diminishing nocturnal IOP elevation compared with sham-operated mice. Conclusions Glucocorticoids are sufficient for phase shifting the circadian clock in iris-CB. Intact adrenal function is required for manifest circadian rhythms of IOP in mice. Taken together, these data are consistent with the hypothesis that glucocorticoids mediate circadian entrainment of IOP to the master circadian oscillator.
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Affiliation(s)
- Shunsuke Tsuchiya
- Department of Ophthalmology, University of Washington School of Medicine, Seattle, Washington, United States.,Department of Ophthalmology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Kazuhisa Sugiyama
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Russell N Van Gelder
- Department of Ophthalmology, University of Washington School of Medicine, Seattle, Washington, United States.,Department of Pathology, University of Washington School of Medicine, Seattle, Washington, United States.,Department of Biological Structure, University of Washington School of Medicine, Seattle, Washington, United States
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Amamizu H, Matsumoto Y, Morosawa S, Ohyama K, Uzuka H, Hirano M, Sugisawa J, Tsuchiya S, Nishimiya K, Hayashi M, Kawai Y, Shimokawa H. 2435Important roles of cardiac lymphatic vessels in the regulation of coronary vasomotion after DES implantation in pigs in vivo. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.2435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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)
- H Amamizu
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - S Morosawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Ohyama
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - H Uzuka
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M Hirano
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Nishimiya
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M Hayashi
- Tohoku Pharmaceutical University Hospital, Physiology, Sendai, Japan
| | - Y Kawai
- Tohoku Pharmaceutical University Hospital, Physiology, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
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Tsuchiya S, Matsumoto Y, Kikuchi Y, Sugisawa J, Hao K, Takeuchi M, Takahashi J, Kawamoto S, Kumagai K, Wagatsuma T, Saiki Y, Shimokawa H. P6315Evidence for improved cognitive function following transcatheter aortic valve implantation in elderly patients with severe aortic stenosis - Brain perfusion SPECT imaging study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6315] [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: 11/13/2022] Open
Affiliation(s)
- S Tsuchiya
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - M Takeuchi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
| | - S Kawamoto
- Tohoku Pharmaceutical University Hospital, Cardiovascular Surgery, Sendai, Japan
| | - K Kumagai
- Tohoku University Graduate School of Medicine, Cardiovascular Surgery, Sendai, Japan
| | - T Wagatsuma
- Tohoku University Graduate School of Medicine, Anesthesiology and Perioperative Medicine, Sendai, Japan
| | - Y Saiki
- Tohoku University Graduate School of Medicine, Cardiovascular Surgery, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, cardiovascular medicine, Sendai, Japan
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Hao K, Takahashi J, Suda A, Sato K, Sugisawa J, Tsuchiya S, Sindo T, Ikeda S, Kikuchi Y, Matsumoto Y, Sakata Y, Shimokawa H. P4628Clinical significance of fractional flow reserve in patients with vasospastic angina and organic coronary stenosis. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4628] [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: 11/13/2022] Open
Affiliation(s)
- K Hao
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Sato
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Sindo
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Sakata
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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Kikuchi Y, Takahashi J, Sato K, Sugisawa J, Tsuchiya S, Suda A, Shindo T, Ikeda S, Hao K, Shiroto T, Matsumoto Y, Sakata Y, Shimokawa H. P793Usefulness and safety of fasudil, a selective Rho-kinase inhibitor, for PCI-related myocardial ischemia in interventional cardiology. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p793] [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: 11/14/2022] Open
Affiliation(s)
- Y Kikuchi
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Takahashi
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Sato
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Sugisawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Tsuchiya
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Suda
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shindo
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Ikeda
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Hao
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shiroto
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Matsumoto
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Sakata
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Sugisawa J, Matsumoto Y, Suda A, Ota H, Tsuchiya S, Ohyama K, Sato K, Shindo T, Ikeda S, Hao K, Kikuchi Y, Takahashi J, Shimokawa H. 1343Evidence for impaired vasodilator capacity of coronary microvessels in patients with vasospatic angina - Myocardial CT perfusion imaging study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.1343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 11/13/2022] Open
Affiliation(s)
- J Sugisawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Ota
- Tohoku University Graduate School of Medicine, Department of Radiology, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Ohyama
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Sato
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Ikeda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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17
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Tsuchiya S, Higashide T, Sugiyama K. Visual field changes after vitrectomy with internal limiting membrane peeling for epiretinal membrane or macular hole in glaucomatous eyes. PLoS One 2017; 12:e0177526. [PMID: 28542230 PMCID: PMC5436669 DOI: 10.1371/journal.pone.0177526] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 04/29/2017] [Indexed: 11/19/2022] Open
Abstract
Purpose To investigate visual field changes after vitrectomy for macular diseases in glaucomatous eyes. Methods A retrospective review of 54 eyes from 54 patients with glaucoma, who underwent vitrectomy for epiretinal membrane (ERM; 42 eyes) or macular hole (MH; 12 eyes). Standard automated perimetry (Humphrey visual field 24–2 program) was performed and analyzed preoperatively and twice postoperatively (1st and 2nd sessions; 4.7 ± 2.5, 10.3 ± 3.7 months after surgery, respectively). Postoperative visual field sensitivity at each test point was compared with the preoperative value. Longitudinal changes in mean visual field sensitivity (MVFS) of the 12 test points within 10° eccentricity (center) and the remaining test points (periphery), best-corrected visual acuity (BCVA), intraocular pressure (IOP), and ganglion cell complex (GCC) thickness, and the association of factors with changes in central or peripheral MVFS over time were analyzed using linear mixed-effects models. In addition, 45 eyes from 45 patients without glaucoma who underwent vitrectomy for epiretinal membrane (ERM; 34 eyes) or macular hole (MH; 11 eyes) were similarly examined and statistically analyzed (control group). Results In glaucomatous eyes, visual field test points changed significantly and reproducibly; two points deteriorated only at the center and twelve points improved only at the periphery. Central MVFS decreased (p = 0.03), whereas peripheral MVFS increased postoperatively (p = 0.010). In the control group, no visual field test points showed deterioration, and central MVFS did not change significantly after vitrectomy. BCVA improved, GCC thickness decreased, and IOP did not change postoperatively in both groups. The linear mixed-effects models identified older age, systemic hypertension, longer axial length, and preoperative medication scores of ≥2 as risk factors for central MVFS deterioration in glaucomatous eyes. Conclusions Visual field sensitivity within 10° eccentricity may deteriorate after vitrectomy for ERM or MH in glaucomatous eyes.
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Affiliation(s)
- Shunsuke Tsuchiya
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Tomomi Higashide
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
- * E-mail:
| | - Kazuhisa Sugiyama
- Department of Ophthalmology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
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Tsuchiya S, Higashide T, Toida K, Sugiyama K. The Role of Beta-Adrenergic Receptors in the Regulation of Circadian Intraocular Pressure Rhythm in Mice. Curr Eye Res 2017; 42:1013-1017. [PMID: 28121174 DOI: 10.1080/02713683.2016.1264605] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
PURPOSE To investigate whether the elimination of β1- and β2-adrenergic receptors alters the diurnal intraocular pressure (IOP) rhythm in mice. MATERIALS AND METHODS β1-/β2-adrenergic receptor double-knockout and C57BL/6J mice were anesthetized intraperitoneally, with their IOPs measured via microneedle method. After entrainment to a 12-h light-dark (LD) cycle (light phase 6:00-18:00), IOPs were measured every 3 h from 9:00 to 24:00 (group 1, β1-/β2-adrenergic receptor double-knockout mice, n = 11; C57BL/6J, n = 15). The IOP measurements at 15:00 and 24:00 under a 12-h LD cycle and in the constant darkness (1 day and 8 days after exposure to darkness, respectively) were performed in another group of β1-/β2-adrenergic receptor double-knockout mice (group 2, n = 12). IOP variance throughout the day and mean IOP differences among time points were evaluated using a linear mixed model. RESULTS β1-/β2-adrenergic receptor double-knockout and C57BL/6J mice showed biphasic IOP curves, low during the light phase and high during the dark phase; the fluctuation was significant (P < 0.001). The peak IOP (18.7 ± 1.4 mmHg) occurred at 24:00 and the trough IOP (13.5 ± 1.5 mmHg) occurred at 15:00 in β1-/β2-adrenergic receptor double-knockout mice group. IOP curves of β1-/β2-adrenergic receptor double-knockout and C57BL/6J were nearly parallel, and the IOPs of β1-/β2-adrenergic receptor double-knockout mice were significantly higher than those of C57BL/6J mice (P < 0.001). Under constant dark (DD) conditions, IOP at 24:00 (18.1 ± 1.5 mmHg) was significantly higher than that at 15:00 (13.3 ± 1.2 mmHg) (P < 0.001). The transition from the LD cycle to DD environment produced no significant change in IOP (P = 0.728). CONCLUSIONS Elimination of both β1- and β2-adrenergic receptors did not disturb the biphasic diurnal IOP rhythm in mice.
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Affiliation(s)
- Shunsuke Tsuchiya
- a Department of Ophthalmology and Visual Science , Kanazawa University Graduate School of Medical Science , Kanazawa , Japan
| | - Tomomi Higashide
- a Department of Ophthalmology and Visual Science , Kanazawa University Graduate School of Medical Science , Kanazawa , Japan
| | - Kazunori Toida
- b Department of Anatomy , Kawasaki Medical School , Kurashiki , Japan.,c Research Center for Ultra-High Voltage Electron Microscopy , Osaka University , Ibaraki , Japan
| | - Kazuhisa Sugiyama
- a Department of Ophthalmology and Visual Science , Kanazawa University Graduate School of Medical Science , Kanazawa , Japan
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Fletcher C, Tsuchiya S, Mehrotra DV. Current Practices in Choosing Estimands and Sensitivity Analyses in Clinical Trials: Results of the ICH E9 Survey. Ther Innov Regul Sci 2017; 51:69-76. [PMID: 30236003 DOI: 10.1177/2168479016666586] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND An addendum to the International Conference on Harmonisation E9 (ICH E9) guidance document (Statistical Principles for Clinical Trials) is currently under development. The aim of the addendum is to promote harmonized standards on the choice of estimand (a well-defined measure of the treatment effect that is being estimated) in clinical trials and to describe a consensual framework for planning, conducting, and interpreting sensitivity analyses of clinical trial data. METHODS In order to help understand current practices relating to the choice of estimands and sensitivity analyses for clinical trials, the ICH E9 working group developing the addendum conducted a survey with a primary focus on clinical trials involving drugs, vaccines, and biologics. The survey was distributed electronically between May 19, 2015, and June 11, 2015, to various stakeholder groups within ICH, including industry, regulatory, and academic communities. A total of 1305 respondents participated. RESULTS Of the 1305 respondents 547 (42%), 344 (26%) and 283 (22%) were from Europe, USA and Japan respectively. Over half of the respondents work in pharmaceutical companies, and approximately a quarter of respondents noted oncology as the primary therapeutic area they work in. Over half of the respondents (595, 55%) noted the treatment effect being estimated was 'in the entire target population of patients regardless of whether they will take treatment as instructed'. The most common methods for handling missing data in primary analyses were mixed-models repeated measures (555, 56% respondents) and last observation carried forward (549, 55% respondents). The majority of respondents (816, 83%) noted they conducted sensitivity analyses to estimate treatment effects in different ways compared to the primary analysis by using alternative assumptions (627, 78%) and/or using alternative statistical methods (616, 76%). CONCLUSIONS The survey results have provided useful information to the ICH E9 working group on current practices on the choice of primary estimands for measuring treatment effects in confirmatory clinical trials, and approaches used to select sensitivity analyses.
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Affiliation(s)
- C Fletcher
- 1 Amgen Ltd, Cambridge, UK.,2 Clinical Development Expert Group, European Federation of Pharmaceutical Industries and Associations, Brussels, Belgium
| | - S Tsuchiya
- 3 Sumitomo Dainippon Pharma Co Ltd, Tokyo, Japan.,4 Drug Evaluation Committee, Japan Pharmaceutical Manufacturers Association, Tokyo, Japan
| | - D V Mehrotra
- 5 Merck Research Laboratories, North Wales, PA, USA
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Ohashi R, Sakatani T, Matsubara M, Watarai Y, Yanagihara K, Yamashita K, Tsuchiya S, Takei H, Naito Z. Mucinous carcinoma of the breast: a comparative study on cytohistological findings associated with neuroendocrine differentiation. Cytopathology 2016; 27:193-200. [PMID: 26804749 DOI: 10.1111/cyt.12298] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/18/2015] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Mucinous carcinoma (MCA) may show neuroendocrine differentiation (ND), but the cytological features characteristic of ND remains elusive. We compared fine needle aspiration (FNA) findings of MCA between cases with high and low degrees of ND. METHODS Histological sections of 37 MCA cases were immunohistochemically evaluated for expression of chromogranin A and synaptophysin, and were graded as 0 to 3+ degrees of ND. They were divided into low ND (grade 0 and 1+) and high ND (grade 2+ and 3+) groups. Pre-operative FNA samples of each group were assessed for cytological features. RESULTS The mean age of the high ND group (n = 18) was higher than the low ND group (n = 19, P = 0.01). In FNA samples of the high ND group, 17 cases showed moderate to severe degrees of discohesiveness, but low ND cases mainly showed no or only mild discohesiveness (P < 0.001). Nine of the low ND cases displayed overlapped, cohesive cell clusters, whereas, in the high ND cases, the cells were arranged in a loose, flat and monolayered pattern (P = 0.045). Fourteen of the high ND cases had round nuclei, but oval nuclei were predominant in the low ND cases (P = 0.027). The nuclei were eccentrically located in 12 of the high ND cases but were centrally located in 14 of the low ND cases (P = 0.01). CONCLUSIONS Mucinous carcinoma with high ND may be diagnosed by the presence of discohesiveness, a flat, monolayered pattern, and round or eccentrically located nuclei. Features of ND in carcinomas in other organs, such as intracytoplasmic granules and coarse chromatin, may not be reliable cytological features of ND in MCA.
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Affiliation(s)
- R Ohashi
- Department of Diagnostic Pathology, Nippon Medical School Hospital, Tokyo, Japan
| | - T Sakatani
- Department of Diagnostic Pathology, Nippon Medical School Hospital, Tokyo, Japan.,Departments of Pathology and Integrative Oncological Pathology, Nippon Medical School, Tokyo, Japan
| | - M Matsubara
- Department of Diagnostic Pathology, Nippon Medical School Hospital, Tokyo, Japan
| | - Y Watarai
- Department of Diagnostic Pathology, Nippon Medical School Hospital, Tokyo, Japan
| | - K Yanagihara
- Division of Breast Surgery, Nippon Medical School Hospital, Tokyo, Japan
| | - K Yamashita
- Division of Breast Surgery, Nippon Medical School Hospital, Tokyo, Japan
| | - S Tsuchiya
- Department of Diagnostic Pathology, Nippon Medical School Hospital, Tokyo, Japan.,Department of Diagnostic Pathology, Iida Hospital, Nagano, Japan
| | - H Takei
- Division of Breast Surgery, Nippon Medical School Hospital, Tokyo, Japan
| | - Z Naito
- Department of Diagnostic Pathology, Nippon Medical School Hospital, Tokyo, Japan.,Departments of Pathology and Integrative Oncological Pathology, Nippon Medical School, Tokyo, Japan
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Hakata Y, Tsuchiya S, Michiue H, Ohtsuki T, Matsui H, Miyazawa M, Kitamatsu M. A novel leucine zipper motif-based hybrid peptide delivers a functional peptide cargo inside cells. Chem Commun (Camb) 2015; 51:413-6. [DOI: 10.1039/c4cc07459a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We delivered a hybrid of an autophagy-inducing peptide and a cell-penetrating peptide via heterodimeric leucine zippers into the cell. By this method, the peptide successfully induced autophagy without significant cell death.
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Affiliation(s)
- Y. Hakata
- Department of Immunology
- Faculty of Medicine
- Kinki University
- Osaka 589-8511
- Japan
| | - S. Tsuchiya
- Department of Applied Chemistry
- Faculty of Science and Engineering Kinki University
- Osaka 577-8502
- Japan
| | - H. Michiue
- Department of Physiology
- Graduate School of Medicine
- Dentistry and Pharmaceutical Sciences
- Okayama University
- Okayama 700-8558
| | - T. Ohtsuki
- Department of Biotechnology
- Graduate School of Natural Science and Technology
- Okayama University
- Okayama 700-8530
- Japan
| | - H. Matsui
- Department of Physiology
- Graduate School of Medicine
- Dentistry and Pharmaceutical Sciences
- Okayama University
- Okayama 700-8558
| | - M. Miyazawa
- Department of Immunology
- Faculty of Medicine
- Kinki University
- Osaka 589-8511
- Japan
| | - M. Kitamatsu
- Department of Applied Chemistry
- Faculty of Science and Engineering Kinki University
- Osaka 577-8502
- Japan
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23
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Looi CY, Sasahara Y, Watanabe Y, Satoh M, Hakozaki I, Uchiyama M, Wong WF, Du W, Uchiyama T, Kumaki S, Tsuchiya S, Kure S. The open conformation of WASP regulates its nuclear localization and gene transcription in myeloid cells. Int Immunol 2014; 26:341-52. [DOI: 10.1093/intimm/dxt072] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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24
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Uji S, Kodama K, Sugii K, Takahide Y, Terashima T, Kurita N, Tsuchiya S, Kohno M, Kimata M, Yamamoto K, Yakushi K. Kosterlitz-Thouless-type transition in a charge ordered state of the layered organic conductor α-(BEDT-TTF)2I3. Phys Rev Lett 2013; 110:196602. [PMID: 23705731 DOI: 10.1103/physrevlett.110.196602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Indexed: 06/02/2023]
Abstract
The current-voltage characteristics in the charge order state of the two-dimensional organic conductor α-(BEDT-TTF)(2)I(3) exhibit power law behavior at low temperatures. The power law is understood in terms of the electric-field-dependent potential between electrons and holes, which are thermally excited from the charge order state. The power law exponent steeply changes from 1 to 3 in the range from 30 to 45 K with decreasing temperature, thereby suggesting the occurrence of a Kosterlitz-Thouless-type transition; many (few) unbound electron-hole pairs are thermally excited above (below) the transition. The effects of the finite size and interlayer coupling on the power law behavior are discussed.
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Affiliation(s)
- S Uji
- National Institute for Materials Science, Tsukuba, Ibaraki 305-0003, Japan
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25
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Shida T, Aminaka M, Shirai Y, Okimoto K, Tsuruta S, Kita E, Tsuchiya S, Kato K, Takahashi M. Endoscopic submucosal dissection with a ligation device for the treatment of rectal carcinoid tumor. Endoscopy 2012; 44 Suppl 2 UCTN:E4-5. [PMID: 22396268 DOI: 10.1055/s-0030-1256960] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 12/18/2022]
Affiliation(s)
- T Shida
- Department of Endoscopy, Funabashi Central Social Insurance Hospital, Funabashi, Japan.
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26
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Coentrao L, Ribeiro C, Santos-Araujo C, Neto R, Pestana M, Rahman E, Rahman H, Ahmed D, Mousa D, El Bishlawi M, Shibahara H, Shibahara N, Takahashi S, Dupuis E, Duval X, Dornic Q, Bonnal C, Lucet JC, Cerceau O, Randoux C, Balde C, Besson F, Mentre F, Vrtovsnik F, Koutroubas G, Malindretos P, Zagotsis G, Makri P, Syrganis C, Mambelli E, Mancini E, Elia C, Guadagno V, Facchini MG, Zucchelli A, Grazia M, Patregnani L, Santoro A, Stefan G, Stefan G, Stancu S, Capusa C, Ailioaiei OR, Mircescu G, Anwar S, Little C, Kingston R, Diwakar P, Kaikini R, Syrganis C, Koutroubas G, Zagotsis G, Malindretos P, Makri P, Nikolaou E, Loukas G, Sabry A, Alsaran K, Al Sherbeiny S, Abdulkader M, Kwak I, Song S, Seong E, Lee S, Lee D, Kim I, Rhee H, Silva F, Queiros J, Malheiro J, Cabrita A, Rocha A, Bamidis P, Bamidis P, Liaskos C, Chryssogonidis I, Frantzidis C, Papagiannis A, Vrochides D, Lasaridis A, Nikolaidis P, Malindretos P, Kotwal S, Muir C, Hawley C, Snelling P, Gallagher M, Jardine M, Shibata K, Shibata K, Toya Y, Umemura S, Iwamoto T, Ono S, Ikeda E, Kitazawa A, Kuji T, Koguchi N, Satta H, Nishihara M, Kawata S, Kaneda T, Yamada Y, Murakami T, Yanagi M, Yasuda G, Mathieu S, Yves D, Jean-Michel T, Nicolas Q, Jean-Francois C, Ibrahim M, Abdel Salam M, Awadalla A, Bichari W, Zaki S, Roca-Tey R, Samon R, Ibrik O, Roda A, Gonzalez-Oliva JC, Martinez-Cercos R, Viladoms J, Lin CC, Yang WC, Kim YO, Yoon SA, Yun YS, Song HC, Kim BS, Cheong MA, Ogawa T, Kiba T, Okazaki S, Hatano M, Iwanaga M, Noiri C, Matsuda A, Hasegawa H, Mitarai T, DI Napoli A, DI Lallo D, Tazza L, De Cicco C, Salvatori MF, Chicca S, Guasticchi G, Gelev S, Trajceska L, Srbinovska E, Pavleska S, Oncevski A, Dejanov P, Gerasomovska V, Selim G, Sikole A, Wilson S, Mayne T, Krishnan M, Holland J, Volz A, Good L, Nissenson A, Stavroulopoulos A, Aresti V, Maragkakis G, Kyriakides S, Rikker C, Rikker C, Juhasz E, Tornoci L, Tovarosi S, Greguschik J, Mag O, Rosivall L, Golebiowski T, Golebiowski T, Watorek E, Kusztal M, Letachowicz K, Letachowicz W, Madziarska K, Augustyniak Bartosik H, Krajewska M, Weyde W, Klinger M, Capitanini A, Lange S, Cupisti A, Schier T, Gobel G, Bosmuller C, Gruber I, Tiefenthaler M, Shipley T, Adam J, Sweeney D, Fenwick S, Mansy H, Ahmed S, Moore I, Iwamoto T, Shibata K, Yasuda G, Kaneda T, Murakami T, Kuji T, Koguchi N, Satta H, Nishihara M, Kawata S, Yanagi M, Yamada Y, Ono S, Ikeda E, Kitazawa A, Toya Y, Umemura S, Vigeral P, Saksi S, Flamant M, Boulanger H, Kim YO, Yoon SA, Yun YS, Song HC, Kim BS, Park WD, Cheong MA, Nikam M, Tavakoli A, Chemla E, Evans J, Malete H, Matyas L, Mogan I, Lazarides M, Ebner A, Shi Y, Shi Y, Zhang J, Cheng J, Frank LR, Melanie H, Dominique B, Michel G, Ikeda K, Yasuda T, Yotueda H, Nikam M, Ebah L, Jayanti A, Evans J, Kanigicherla D, Summers A, Manley G, Dutton G, Chalmers N, Mitra S, Checherita IA, Niculae A, Radulescu D, David C, Turcu FL, Ciocalteu A, Persic V, Persic V, Buturovic-Ponikvar J, Ponikvar R, Touam M, Touam M, Menoyo V, Drueke T, Rifaat M, Muresan C, Abtahi M, Koochakipour Z, Joly D, Baharani J, Rizvi S, Ng KP, Buzzi L, Sarcina C, Alberghini E, Ferrario F, Baragetti I, Santagostino G, Furiani S, Corghi E, Sarcina C, Terraneo V, Rastelli F, Bacchini G, Pozzi C, Adorati Menegato M, Mortellaro R, Locicero A, Romano A, Manzini PP, Steckiph D, Shintaku S, Kawanishi H, Moriishi M, Bansyodani M, Nakamura S, Saito M, Tsuchiya S, Barros F, Vaz R, Carvalho B, Neto R, Martins P, Pestana M, Likaj E, Likaj E, Seferi S, Rroji M, Idrizi A, Duraku A, Barbullushi M, Thereska N, Shintaku S, Kawanishi H, Moriishi M, Bansyodani M, Nakamura S, Saito M, Tsuchiya S. Vascular access. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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27
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Sato F, Ito T, Tsuchiya S, Kawaguchi-Sakita N, Shimizu K, Tsujimoto G, Toi M. P1-02-09: Epigenetics-Regulated microRNAs Related with Epithelial-Mesenchymal Transition of Breast Cancer Cells. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p1-02-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Epithelial-mesenchymal transition (EMT) is a program in which biological cells change morphologically and functionally from an epithelial phenotype to a mesenchymal phenotype. The EMT is involved in the process of cancer metastasis. On the other hand, accumulated evidence showed epigenetics and microRNA plays important roles in breast cancer. However, to date, biological networks between epigenetics and microRNAs regarding EMT remains largely unclear. Thus, the aim of this study is to identify epigenetics-regulated microRNAs related with EMT of breast cancer.
Materials / Methods and Results: MicroRNA expression profiles of 11 breast cancer cell lines (8 epithelial-phenotype (E-type) cells and 3 mesenchymal-phenotype (M-type) cells) were obtained by microarray method. Unsupervised clustering analysis showed that E- and M-type breast cancer cells had different microRNA expression profiles. On the other hand, we obtained a genomewide methylation status of these breast cancer cell lines by a MeDIP-seq method. An integrated in silico analysis identified microRNAs which microRNA and DNA methylation were inversely correlated. All of miR-200b/a/429 cluster members were listed in top5 differentially expressed miRs between E-and M-type cells, and also in top 5 epigenetics-regulated microRNAs. In the further study, we focused upon the miR-200b/a/429 cluster. A COBRA assay revealed that promoter regions of miR-200b/a/429 cluster in M-type breast cancer cells were more frequently methylated than that in E-type cells (65.1% vs 6.8%, p<0.0001, respectively). The methylation levels were inversely associated with miR-200b/a/429 cluster expression (Taqman assay, p<0.01). In addition, demethylating treatment using 5-aza-dC unmasked miR-200b/a/429 expression in M-typed breast cancer cell lines. Taken together, the finding indicated that the expression of miR-200b/a/429 cluster is epigenetically regulated. Next, we investigated an effect of the miR-200b/a/429 cluster upon cell motility as a function of the EMT. A transfection of exogenous miR-200b/429 inhibited 24% of cell migration ability (Transwell assay). Utilizing microRNA target prediction algorithm, we identified fibronectin as a target gene of miR-200b/429. Utilizing several prediction algorithms for microRNA target genes, we identified fibronectin as a target gene of miR-200b/429. A luciferase-based reporter assay demonstrated that miR-200b/429 were directly associated with fibronectin-3'UTR and repressed 21% (p<0.0001) of the reporter gene expression post-transcriptionally. Conclusion: The promoter hypermethylation of miR-200b cluster is associated with epithelial-mesenchymal transition, and stimulates cell motility by upregulating fibronectin expression in mesenchymal-phenotype breast cancer cells.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P1-02-09.
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Affiliation(s)
- F Sato
- 1Graduate School of Medicine, Kyoto University, Kyoto, Japan; Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - T Ito
- 1Graduate School of Medicine, Kyoto University, Kyoto, Japan; Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - S Tsuchiya
- 1Graduate School of Medicine, Kyoto University, Kyoto, Japan; Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - N Kawaguchi-Sakita
- 1Graduate School of Medicine, Kyoto University, Kyoto, Japan; Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - K Shimizu
- 1Graduate School of Medicine, Kyoto University, Kyoto, Japan; Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - G Tsujimoto
- 1Graduate School of Medicine, Kyoto University, Kyoto, Japan; Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - M Toi
- 1Graduate School of Medicine, Kyoto University, Kyoto, Japan; Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
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28
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Hirose M, Haginoya K, Yokoyama H, Kikuchi A, Hino-Fukuyo N, Munakata M, Uematsu M, Iinuma K, Kato M, Yamamoto T, Tsuchiya S. Progressive atrophy of the cerebrum in 2 Japanese sisters with microcephaly with simplified gyri and enlarged extraaxial space. Neuropediatrics 2011; 42:163-6. [PMID: 21932181 DOI: 10.1055/s-0031-1287771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 10/17/2022]
Abstract
This is a case report that describes 2 sisters with microcephaly, simplified gyri, and enlarged extraaxial space. Clinical features of the cases include dysmorphic features, congenital microcephaly, failure of postnatal brain growth, neonatal onset of seizures, quadriplegia, and severe psychomotor delay. Neuroradiological imaging demonstrated hypoplasia of bilateral cerebral hemispheres with enlarged extraaxial spaces, simplified gyral patterns without a thickened cortex, hypoplastic corpus callosum, and enlarged lateral ventricles, with a reduction in gray and white matter volume during the prenatal and neonatal periods. Repeat MRI revealed progressive atrophy of the cerebral gray and white matter, with enlarged lateral ventricles, although the sizes of the bilateral basal ganglia, thalamus, and infratentorial structures were relatively preserved. These neuroradiological findings imply that this disease is caused by the gene involved in neuronal and glial proliferation in the ventricular zone and in tangential neuronal migration from the ganglionic eminence. The nature of the progressive degeneration of the hemispheric structures should be clarified.
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Affiliation(s)
- M Hirose
- Department of Pediatrics, Tohoku University School of Medicine, Sendai, Japan
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29
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Affiliation(s)
- S. Tsuchiya
- Department of Plastic and Reconstructive Surgery, Saitama Medical University, Japan
| | - S. Ichioka
- Department of Plastic and Reconstructive Surgery, Saitama Medical University, Japan
| | - N. Sekiya
- Department of Plastic and Reconstructive Surgery, Saitama Medical University, Japan
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30
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Nakatsuka Y, Yamashita S, Nimura H, Mizoue S, Tsuchiya S, Hashii K. Location of main occluding areas and masticatory ability in patients with reduced occlusal support. Aust Dent J 2010; 55:45-50. [DOI: 10.1111/j.1834-7819.2009.01174.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Wakusawa K, Haginoya K, Ishitobi M, Hino-Fukuyo N, Togashi N, Sato I, Ohura T, Yokoyama H, Kikuchi M, Iinuma K, Tsuchiya S. The cytokine and chemokine profiles in rhabdomyolysis in a patient with Gaucher disease type II. Neuropediatrics 2010; 41:39-42. [PMID: 20571990 DOI: 10.1055/s-0030-1253425] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
This report describes a patient with Gaucher disease type II who developed severe rhabdomyolysis. We treated him successfully and measured various cytokine and chemokine levels sequentially to elucidate the pathophysiology of rhabdomyolysis. The serum levels of interleukin-6, -8, -10, granulocyte colony-stimulating factor, interferon-gamma, and monocyte chemoattractant protein-1 were markedly elevated in the early phase of rhabdomyolysis. These findings indicate that cytokines and chemokines are related to the massive myolysis and regenerating process. A viral infection may have triggered rhabdomyolysis through exaggerated activation of macrophages in our patient. The profiles of cytokines and chemokines should be examined in further cases to increase our understanding of the pathophysiology of rhabdomyolysis.
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Affiliation(s)
- K Wakusawa
- Department of Pediatrics, Tohoku University, Sendai, Japan
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32
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Yoshimura E, Tsuchiya S, Watabe H, Kawaoka T. Association response by understanding commonsense in conversation system. Journal of Intelligent & Fuzzy Systems 2010. [DOI: 10.3233/ifs-2010-0434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- E. Yoshimura
- Department of Knowledge Engineering & Computer Sciences, Doshisha University, Kyo-Tanabe, Kyoto, 610-0394, Japan
| | - S. Tsuchiya
- Department of Knowledge Engineering & Computer Sciences, Doshisha University, Kyo-Tanabe, Kyoto, 610-0394, Japan
| | - H. Watabe
- Department of Knowledge Engineering & Computer Sciences, Doshisha University, Kyo-Tanabe, Kyoto, 610-0394, Japan
| | - T. Kawaoka
- Department of Knowledge Engineering & Computer Sciences, Doshisha University, Kyo-Tanabe, Kyoto, 610-0394, Japan
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33
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Nagano T, Kakegawa A, Yamakoshi Y, Tsuchiya S, Hu JCC, Gomi K, Arai T, Bartlett JD, Simmer JP. Mmp-20 and Klk4 cleavage site preferences for amelogenin sequences. J Dent Res 2009; 88:823-8. [PMID: 19767579 DOI: 10.1177/0022034509342694] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Mmp-20 and Klk4 are the two key enamel proteases. Can both enzymes process amelogenin to generate the major cleavage products that accumulate during the secretory stage of amelogenesis? We isolated Mmp-20 and Klk4 from developing pig teeth and used them to digest the tyrosine-rich amelogenin polypeptide (TRAP), the leucine-rich amelogenin protein (LRAP), and 5 fluorescence peptides. We characterized the digestion products by LC-MSMS, SDS-PAGE, and C18 RP-HPLC monitored with fluorescence and UV detectors. Mmp-20 cleaves amelogenin sequences after Pro(162), Ser(148), His(62), Ala(63), and Trp(45). These cleavages generate all of the major cleavage products that accumulate in porcine secretory-stage enamel: the 23-kDa, 20-kDa, 13-kDa, 11-kDa, and 6-kDa (TRAP) amelogenins. Mmp-20 cleaves LRAP after Pro(45) and Pro(40), producing the two LRAP products previously identified in tooth extracts. Among these key cleavage sites, Klk4 was able to cleave only after His(62). We propose that Mmp-20 alone processes amelogenin during the secretory stage.
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Affiliation(s)
- T Nagano
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, 1011 N. University, Ann Arbor, MI 48109-1078, USA
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34
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Kakisaka Y, Ishitobi M, Wakusawa K, Haginoya K, Togashi N, Kitamura T, Hino-Fukuyo N, Sato I, Uematsu M, Tsuchiya S. Efficacy of continuous acyclovir infusion in neonatal herpes virus encephalitis. Neuropediatrics 2009; 40:199-200. [PMID: 20135579 DOI: 10.1055/s-0029-1241187] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
We have successfully eliminated herpes simplex virus-2 from the central nervous system in a case of neonatal herpes simplex virus encephalitis with a continuous acyclovir infusion. A male infant delivered from a healthy 22-year-old woman without genital or systemic herpes symptoms around delivery began to develop fever and intractable seizures. He was started on intermittent intravenous acyclovir (20 mg/kg every 8 h) based on the diagnosis of herpes encephalitis. The virus was not eliminated with intermittent acyclovir and vidarabine, while continuous acyclovir was ultimately effective in eliminating herpes simplex virus from his central nervous system. This report demonstrates the efficacy of continuous acyclovir infusion in neonatal herpes simplex virus encephalitis.
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Affiliation(s)
- Y Kakisaka
- Department of Pediatrics, Tohoku University School of Medicine, Sendai, Japan.
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35
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Yunomae Y, Danshita I, Yamamoto D, Yokoshi N, Tsuchiya S. Current-induced instability of superfluid Fermi gases in optical lattices. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/150/3/032128] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Ito K, Kurai M, Fujimori M, Hama Y, Shingu K, Kobayashi S, Yamagami O, Matsuyama I, Tsuchiya S, Amano J. Bilateral synchronous spindle cell, apocrine and scirrhous carcinoma breast cancer in a case or malignant lymphoma. Breast Cancer 2008; 5:411-6. [PMID: 18843558 DOI: 10.1007/bf02967440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/1998] [Accepted: 07/17/1998] [Indexed: 11/26/2022]
Abstract
An unusual case of synchronous bilateral breast cancer occurring during combination chemotherapy and radiation to the outside of the breast for malignant lymphoma is reported. Two histologically rare carcinomas, spindle cell carcinoma and apocrine carcinoma, were observed in this case. A 77-year-old woman, who had been treated for stage IIIA non-Hodgkin's lymphoma, developed bilateral breast tumors. Aspiration biopsy cytology findings of the tumor in the left breast showed several clusters of adenocarcinoma cells and some large atypical spindle shaped cells, which suggested spindle cell carcinoma. The cytologic findings of the right breast tumor were highly suggestive of scirrhous carcinoma. A modified radical mastectomy was performed on both breasts. Pathological examination disclosed two separate cancer lesions in the left breast. The lesion which had been detected before the operation, was a spindle cell carcinoma. Another lesion, detected for the first time by pathological examination, was an apocrine carcinoma. The lesion in the right breast was a scirrhous carcinoma. Since non-invasive foci were detected in these three cancer lesions, each lesion was thought to be a primary cancer. All dissected bilateral axillary lymph nodes showed malignant lymphoma. Immuno-histochemistry of the spindle cell carcinoma revealed positive immunoreactivity for cytokeratin, which suggested the epithelial as well as mesenchymal nature of this tumor. Synchronous existence of malignant lymphoma and three independent breast cancers including spindle cell carcinoma and apocrine carcinoma is very rare.
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Affiliation(s)
- K Ito
- Department of Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, 390-8621, Matsumoto, Japan
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37
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Tsuchiya S, Honda MJ, Shinohara Y, Saito M, Ueda M. Collagen type I matrix affects molecular and cellular behavior of purified porcine dental follicle cells. Cell Tissue Res 2007; 331:447-59. [DOI: 10.1007/s00441-007-0532-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2007] [Accepted: 10/01/2007] [Indexed: 01/09/2023]
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38
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Honda MJ, Nakashima F, Satomura K, Shinohara Y, Tsuchiya S, Watanabe N, Ueda M. Side population cells expressing ABCG2 in human adult dental pulp tissue. Int Endod J 2007; 40:949-58. [PMID: 17916067 DOI: 10.1111/j.1365-2591.2007.01301.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
AIM To investigate the presence of side population (SP) cells by the Hoechst exclusion method in human adult dental pulp tissue. METHODOLOGY Human adult dental pulp-derived cells were generated from third molar teeth. The cells were stained with Hoechst 33342 and sorted into SP cells or non-SP cells [main population (MP) cells]. Both cell types were compared with cell growth and RT-PCR analyses. RESULTS SP cells that express ABCG2, Nestin, Notch-1 and alpha-smooth muscle actin were found at frequencies ranging from 0.67% to 1.02%. This SP profile disappeared in the presence of verapamil. These SP cells expressed dentine sialophosphoprotein and dentine matrix protein-1 when cultured in osteogenic medium. CONCLUSION Human adult dental pulp tissue contains SP cells that differentiate into odontoblast-like cells.
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Affiliation(s)
- M J Honda
- Tooth Regeneration, Division of Stem Cell Engineering, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
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39
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Muraoka M, Akamine S, Tsuchiya S, Kabahara R, Morino S, Mochinaga H, Yamaoka N, Uchiyama Y. [The efficacy of perioperative administration of steroid and erythromycin in the surgery for lung cancer complicated with interstitial pneumonia]. Kyobu Geka 2007; 60:871-8. [PMID: 17877003] [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: 05/17/2023]
Abstract
OBJECTIVES We evaluated the efficacy of perioperative administration of steroid and erythromycin in surgery for lung cancer complicated with interstitial pneumonia (IP) to prevent postoperative acute exacerbation. PATIENTS AND METHODS We operated on 21 lung cancer patients with IP for 10 years. The patients were given 400 mg of erythromycin over 1 week before surgery and re-administered on the 1st operative day. The patients were also given 125 mg of methylprednisolone intravenously just before operation and continued until the 2nd operative day. RESULTS Lobectomy was performed in 16, segmentectomy or partial resection in 2 each, and completion pneumonectomy in 1. Three patients developed acute exacerbation of IP, but it occurred after the re-operation due to postoperative complications in 2. We experienced no operative death within 30 days, however, 2 died during the hospital stay due to multiple organ failure and sepsis. Seven of 21 patients had postoperative complications; air leakage over 1 week in 4, arrhythmia in 3, and atelectasis, postoperative bleeding, and pneumonia in 1 each, the morbidity rate was 33%. CONCLUSIONS We conclude that the administration of steroid and erythromycin in surgery for lung cancer with IP was suspected the usefulness to prevent a postoperative acute exacerbation of IP.
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Affiliation(s)
- M Muraoka
- Department of Chest Surgery, Oita Prefectural Hospital, Oita, Japan
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Kubota K, Nagai K, Nishiwaki Y, Sugiura T, Tsuchiya S, Matsui K, Tada A, Nishimura Y, Kawahara M. Attitudes about chemotherapy for Japanese patients with or without cancer: Doctors, nurses, and the general public. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.17062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
17062 Background: A prospective survey in England demonstrated that patients with cancer were much more likely to accept radical treatment with minimal chance of benefit than people who did not have cancer (Slevin et al. Br Med J 1990; 300: 1458–60). We compared responses of Japanese patients with cancer with those of a control group of physicians, nurses, and patients without cancer in assessing personal cost-benefit of chemotherapy using the same questionnaire with Slevin's study. Methods: Subjects were asked with questionnaires whether of not to accept intensive and mild chemotherapy with a supposed minimum chance of effectiveness. 153 patients with cancer, 265 controls, 213 doctors, 397 nurses, and 51 patients without cancer were subjects of the study. Results: Percentage of subjects who accepted intensive chemotherapy with a supposed minimum chance of effectiveness (1% chance of cure, 3-month prolonging life, 1% relief of symptoms) by subject group were as follows: cancer patients; 62/55/52, doctors; 27/32/4, nurses; 11/12/5, non-cancer patients; 35/40/36, controls; 23/24/15, respectively. Conclusions: More patients with cancer than people without cancer accepted treatments giving the minimal benefit for cure, prolonging life or palliation of symptoms. Interestingly, the results in Japanese survey were similar to the previous study in England. No significant financial relationships to disclose.
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Affiliation(s)
- K. Kubota
- National Cancer Center Hospital East, Kashiwa, Japan; Aichi Cancer Center, Nagoya, Japan; Nishigunma National Hospital, Shibukawa, Japan; Osaka Prefectural Medical Center, Habikino, Japan; Minami-Okayama Medical Center, Okayama, Japan; Ibaragi-Higashi Hospital, Ibaragi, Japan; Kinki- Chuo Chest Medical Center, Sakai, Japan
| | - K. Nagai
- National Cancer Center Hospital East, Kashiwa, Japan; Aichi Cancer Center, Nagoya, Japan; Nishigunma National Hospital, Shibukawa, Japan; Osaka Prefectural Medical Center, Habikino, Japan; Minami-Okayama Medical Center, Okayama, Japan; Ibaragi-Higashi Hospital, Ibaragi, Japan; Kinki- Chuo Chest Medical Center, Sakai, Japan
| | - Y. Nishiwaki
- National Cancer Center Hospital East, Kashiwa, Japan; Aichi Cancer Center, Nagoya, Japan; Nishigunma National Hospital, Shibukawa, Japan; Osaka Prefectural Medical Center, Habikino, Japan; Minami-Okayama Medical Center, Okayama, Japan; Ibaragi-Higashi Hospital, Ibaragi, Japan; Kinki- Chuo Chest Medical Center, Sakai, Japan
| | - T. Sugiura
- National Cancer Center Hospital East, Kashiwa, Japan; Aichi Cancer Center, Nagoya, Japan; Nishigunma National Hospital, Shibukawa, Japan; Osaka Prefectural Medical Center, Habikino, Japan; Minami-Okayama Medical Center, Okayama, Japan; Ibaragi-Higashi Hospital, Ibaragi, Japan; Kinki- Chuo Chest Medical Center, Sakai, Japan
| | - S. Tsuchiya
- National Cancer Center Hospital East, Kashiwa, Japan; Aichi Cancer Center, Nagoya, Japan; Nishigunma National Hospital, Shibukawa, Japan; Osaka Prefectural Medical Center, Habikino, Japan; Minami-Okayama Medical Center, Okayama, Japan; Ibaragi-Higashi Hospital, Ibaragi, Japan; Kinki- Chuo Chest Medical Center, Sakai, Japan
| | - K. Matsui
- National Cancer Center Hospital East, Kashiwa, Japan; Aichi Cancer Center, Nagoya, Japan; Nishigunma National Hospital, Shibukawa, Japan; Osaka Prefectural Medical Center, Habikino, Japan; Minami-Okayama Medical Center, Okayama, Japan; Ibaragi-Higashi Hospital, Ibaragi, Japan; Kinki- Chuo Chest Medical Center, Sakai, Japan
| | - A. Tada
- National Cancer Center Hospital East, Kashiwa, Japan; Aichi Cancer Center, Nagoya, Japan; Nishigunma National Hospital, Shibukawa, Japan; Osaka Prefectural Medical Center, Habikino, Japan; Minami-Okayama Medical Center, Okayama, Japan; Ibaragi-Higashi Hospital, Ibaragi, Japan; Kinki- Chuo Chest Medical Center, Sakai, Japan
| | - Y. Nishimura
- National Cancer Center Hospital East, Kashiwa, Japan; Aichi Cancer Center, Nagoya, Japan; Nishigunma National Hospital, Shibukawa, Japan; Osaka Prefectural Medical Center, Habikino, Japan; Minami-Okayama Medical Center, Okayama, Japan; Ibaragi-Higashi Hospital, Ibaragi, Japan; Kinki- Chuo Chest Medical Center, Sakai, Japan
| | - M. Kawahara
- National Cancer Center Hospital East, Kashiwa, Japan; Aichi Cancer Center, Nagoya, Japan; Nishigunma National Hospital, Shibukawa, Japan; Osaka Prefectural Medical Center, Habikino, Japan; Minami-Okayama Medical Center, Okayama, Japan; Ibaragi-Higashi Hospital, Ibaragi, Japan; Kinki- Chuo Chest Medical Center, Sakai, Japan
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Ohura T, Kobayashi K, Tazawa Y, Abukawa D, Sakamoto O, Tsuchiya S, Saheki T. Clinical pictures of 75 patients with neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD). J Inherit Metab Dis 2007; 30:139-44. [PMID: 17323144 DOI: 10.1007/s10545-007-0506-1] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2006] [Revised: 12/23/2006] [Accepted: 01/08/2007] [Indexed: 12/13/2022]
Abstract
We clarified the clinical features of NICCD (neonatal intrahepatic cholestasis caused by citrin deficiency) by retrospective review of symptoms, management and long-term outcome of 75 patients. The data were generated from questionnaires to paediatricians in charge of the patients. Thirty of the patients were referred to hospitals before 1 month of age because of positive results in newborn screening (hypergalactosaemia, hypermethioninaemia, and hyperphenylalaninaemia). The other 45, the screen-negative patients, were referred to hospitals with suspected neonatal hepatitis or biliary atresia because of jaundice or discoloured stool. Most of the screen-negative patients presented before 4 months of age, and 11 had failure to thrive. Laboratory data showed elevated serum bile acid concentrations, hypoproteinaemia, low levels of vitamin K-dependent coagulation factors and hypergalactosaemia. Hypoglycaemia was detected in 18 patients. Serum amino acid analyses showed significant elevation of citrulline and methionine concentrations. Most of the patients were given a lactose-free and/or medium-chain triglyceride-enriched formula and fat-soluble vitamins. Symptoms resolved in all but two of the patients by 12 months of age. The two patients with unresolved symptoms suffered from progressive liver failure and underwent liver transplantation before their first birthday. Another patient developed citrullinaemia type II (CTLN2) at age 16 years. It is important to recognize that NICCD is not always a benign condition.
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Affiliation(s)
- T Ohura
- Depatment of Paediatrics, Tohoku University School of Medicine, Sendai, Japan.
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Tsuchiya S, Kanaya N, Hirata N, Kurosawa S, Kamada N, Edanaga M, Nakayama M, Omote K, Namiki A. Effects of thiopental on bispectral index and heart rate variability. Eur J Anaesthesiol 2006; 23:454-9. [PMID: 16507201 DOI: 10.1017/s0265021506000159] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/16/2006] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND OBJECTIVE Thiopental has been reported to reduce sympathetic tone, however, it is not clear whether change in heart rate variability is associated with depth of anaesthesia. The purpose of the present study was to evaluate changes in heart rate variability at different depths of hypnosis during induction of anaesthesia with thiopental. METHODS We studied 17 ASA I patients scheduled for minor surgery. The depth of hypnosis was monitored by the BIS. Spectral analysis of heart rate variability using a maximum entropy method resulted in a characteristic power spectrum with two main regions, a high frequency and a low frequency. Haemodynamics, entropy, low frequency, high frequency and low frequency/high frequency were monitored in an awake state and after the induction of anaesthesia. RESULTS Heart rate increased in a BIS-dependent manner, whereas blood pressure showed no significant changes during the study period. High frequency, entropy and low frequency decreased with a reduction in the BIS value. Low frequency/high frequency showed no significant change during the study period. CONCLUSIONS Induction of anaesthesia with thiopental increased heart rate and decreased high frequency, entropy and low frequency in a BIS-dependent manner, indicating that thiopental reduces cardiac parasympathetic tone depending on the depth of hypnosis.
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Affiliation(s)
- S Tsuchiya
- Department of Anesthesiology, School of Medicine, Sapporo Medical University, Sapporo, Japan
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Takano M, Iwadare J, Ohba H, Takamura H, Masuda Y, Matsuo K, Kanai T, Ieda H, Hattori Y, Kurata S, Koganezawa S, Hamano K, Tsuchiya S. Sclerosing therapy of internal hemorrhoids with a novel sclerosing agent. Comparison with ligation and excision. Int J Colorectal Dis 2006; 21:44-51. [PMID: 15843937 DOI: 10.1007/s00384-005-0771-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [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] [Accepted: 03/15/2005] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS Patients with prolapsing internal hemorrhoids were treated with a novel sclerosing agent (OC-108), and the results were compared with surgery of ligation and excision. PATIENTS AND METHODS This study included 20 years or older patients with prolapsing internal hemorrhoids who visited ten medical institutions in Japan from October 2000 to October 2002. Investigation on surgery was also performed. RESULTS Comparing OC-108 and surgery in patients with third- and fourth-degree internal hemorrhoids according to the Goligher's classification, for which surgery has been generally indicated, at 28 days after treatment, the disappearance rate of prolapse was similar between OC-108 and surgery, 94% (75/80 patients) and 99% (84/85 patients), respectively. The 1-year recurrence rate was 16% (12/73 patients) in the OC-108 group, and this value was satisfactory because of its less invasive nature while it was more or less higher compared with 2% (2/81 patients) in the surgery group. The incidences of pain and bleeding were lower in the OC-108 group. CONCLUSIONS OC-108 is a useful alternative treatment for hemorrhoids.
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Affiliation(s)
- M Takano
- Coloproctology Center, Takano Hospital, 4-2-88 Obiyama, Kumamoto 862-0924, Japan.
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Sakamoto T, Miyazaki E, Aramaki Y, Arima H, Takahashi M, Kato Y, Koga M, Tsuchiya S. Improvement of dermatitis by iontophoretically delivered antisense oligonucleotides for interleukin-10 in NC/Nga mice. Gene Ther 2004; 11:317-24. [PMID: 14737092 DOI: 10.1038/sj.gt.3302171] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
IL-10 is overexpressed in skin lesions of atopic dermatitis (AD) patients and believed to be an important factor in the pathogenesis of the disease. Thus the regulation of IL-10 production is a potential solution for immunotherapeutic intervention in AD. We examined the topical delivery of an antisense oligonucleotide for mouse IL-10 (AS6) and the therapeutic effect on the skin lesions of NC/Nga mice, a human AD model. Using an iontophoresis system, about 30% of the applied dose of AS6 penetrated the skin and was distributed in the epidermis and upper dermis. Topically delivered AS6 decreased the levels of mRNA and protein of IL-10 in the lesions of NC/Nga mice, with no effect on IL-4 levels. The dorsal lesions of NC/Nga mice disappeared with repeated topical application of AS6. Topically delivered AS6 showed an inhibitory effect on the production of IL-10 in the skin lesions of NC/Nga mice and had a therapeutic effect on the established dermatitis.
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Affiliation(s)
- T Sakamoto
- School of Pharmacy, Tokyo University of Pharmacy and Life Science, Horinouchi, Hachioji, Tokyo, Japan
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Uchiyama M, Maesawa C, Yashima A, Itabashi T, Satoh T, Tarusawa M, Endo M, Takahashi Y, Sasaki S, Tsuchiya S, Ishida Y, Masuda T. Development of immunoglobulin variable heavy chain gene consensus probes with conjugated 3' minor groove binder groups for monitoring minimal residual disease in childhood acute lymphoblastic leukaemia. J Clin Pathol 2004; 56:952-5. [PMID: 14645357 PMCID: PMC1770149 DOI: 10.1136/jcp.56.12.952] [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: 11/03/2022]
Abstract
AIMS To develop immunoglobulin heavy chain variable (VH) gene probes that are shorter and more flexible in position for monitoring minimal residual disease (MRD) in childhood leukaemia (ALL), using minor groove binder (MGB) technology. METHODS All VH germline sequences registered in the database were aligned and the consensus regions were determined. The reliability of the MGB probes was compared with non-MGB probes in all 24 cases of ALL. RESULTS Ten MGB probes (16 to 18 mers) were designed that enabled all the germline sequences on the database to be analysed, whereas the conventional non-MGB probes (21 to 27 mers) did not allow the analysis of four of the VH1 and five of the VH3 germline sequences. The sequencing results in five of the 24 cases of ALL were not matched to the non-MGB probes. CONCLUSIONS MGB technology allows shorter probes to be designed, enabling MRD to be detected in childhood ALL. This would provide a considerable reduction in cost for a large MRD study.
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Affiliation(s)
- M Uchiyama
- Department of Pathology, Iwate Medical University School of Medicine, Uchimaru 19-1, Morioka 020-8505, Japan
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Imashuku S, Terui K, Matsuyama T, Asami K, Tsuchiya S, Ishii E, Kawa K, Kosaka Y, Eguchi H, Tsuchida M, Ikuta K, Kato S, Koizumi S, Okamura J, Morimoto A, Hibi S, Hamaoka K. Lack of clinical utility of minimal residual disease detection in allogeneic stem cell recipients with childhood acute lymphoblastic leukemia: multi-institutional collaborative study in Japan. Bone Marrow Transplant 2003; 31:1127-35. [PMID: 12796792 DOI: 10.1038/sj.bmt.1704067] [Citation(s) in RCA: 18] [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: 11/09/2022]
Abstract
The clinical utility of minimal residual disease (MRD) measurements following allogeneic stem cell transplantation (SCT) in childhood ALL is controversial. We therefore performed a multi-institutional study of MRD in bone marrow samples taken before SCT and at 1, 3, 6 and 12 months after SCT. Case-specific clonal rearrangements of IgH and TCR genes and expression levels of Wilms' tumor 1 (WT1) mRNA were determined by PCR or RT-PCR methods. In total, 95 cases met all criteria for analysis of informative IgH/TCR markers and quantitative WT1 mRNA expression levels. During the 2-year (median 414 days) study period, 20 patients relapsed. Although the proportion of patients with a positive IgH/TCR result before SCT was significantly reduced at 1 month after treatment (P<0.001), attesting the efficacy of SCT, serial measurements of IgH/TCR rearrangements did not correlate with leukemic relapse. Clonal switch was demonstrated in 11 of the 14 patients with bone marrow relapse, indicating that the poor predictive power of the MRD assay most likely reflected the loss of PCR targets. WT1 expression was not related to either MRD detection by IgH/TCR assays or to clinical leukemic relapse. The clinical value of serial MRD monitoring would be limited in ALL patients undergoing SCT.
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Affiliation(s)
- S Imashuku
- Kyoto City Institute of Health and Environmental Sciences, Kyoto, Japan
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Kawanishi H, Watanabe K, Kurayoshi M, Kawai T, Shiraki N, Arakawa T, Moriishi M, Tsuchiya S. A Case of Hemodialysis Patients with Encapsulating Peritoneal Sclerosis (EPS)-like Finding. Hemodial Int 2003. [DOI: 10.1046/j.1492-7535.2003.01234.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ozawa H, Miyachi M, Ochiai I, Tsuchiya S, Morris JF, Kawata M. Annexin-1 (lipocortin-1)-immunoreactivity in the folliculo-stellate cells of rat anterior pituitary: the effect of adrenalectomy and corticosterone treatment on its subcellular distribution. J Neuroendocrinol 2002; 14:621-8. [PMID: 12153464 DOI: 10.1046/j.1365-2826.2002.00814.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In the pituitary gland, annexin-1 (lipocortin-1) located in folliculo-stellate (FS) cells has been advocated as one of the candidates for paracrine agents produced by FS cells that modulate the release of pituitary hormones. However, the expression and distribution pattern of annexin-1 in FS cells under different circulating corticosteroid conditions has not been examined. Thus, by means of pre-embedding immunoelectron microscopy, we investigated the expression of annexin-1 in FS cells under different corticosteroid conditions. Annexin-1-immunoreactivity was observed in the cytoplasm; especially intense immunoreactivity was detected in the follicle surface of FS cells under control conditions. After adrenalectomy, annexin-1-immunoreactivity almost disappeared, but the immunoreactivity recovered with corticosterone replacement. The expression of glucocorticoid receptor immunoreactivity in the nucleus of FS cells also showed a similar pattern to annexin-1 associated with the changes in the corticosteroid conditions. However, S-100 immunoreactivity, a marker for FS cells, was not changed whatever the corticosteroid conditions. These results confirm that glucocorticoids regulate the annexin-1 expression and demonstrate the translocation of annexin-1 from intracellular to pericellular sites in the FS cells of the rat anterior pituitary gland.
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Affiliation(s)
- H Ozawa
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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Tsuchiya S, Nielsen N, Bauer SH. Lasing action and the relative populations of vibrationally excited carbon monoxide produced in pulse-discharged carbon disulfide-oxygen-helium mixtures. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100639a019] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Traylor TG, Campbell D, Tsuchiya S, Mitchell M, Stynes DV. Cyclophane hemes. 3. Magnitudes of distal side steric effects in hemes and hemoproteins. J Am Chem Soc 2002. [DOI: 10.1021/ja00538a055] [Citation(s) in RCA: 17] [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: 11/29/2022]
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