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Hidaka R, Masuda Y, Ogawa K, Tanaka T, Kanazawa M, Suzuki K, Stading M, Iijima K, Matsuo K. Impact of the Comprehensive Awareness Modification of Mouth, Chewing and Meal (CAMCAM) Program on the Attitude and Behavior Towards Oral Health and Eating Habits as Well as the Condition of Oral Frailty: A Pilot Study. J Nutr Health Aging 2023; 27:340-347. [PMID: 37248757 DOI: 10.1007/s12603-023-1913-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 03/29/2023] [Indexed: 05/31/2023]
Abstract
OBJECTIVES Preserving sufficient oral function and maintaining aadequate nutrition are essential for preventing physical frailty and the following long-term care. We recently developed the 6-month Comprehensive Awareness Modification of Mouth, Chewing And Meal (CAMCAM) program, in which participants gather monthly to learn about oral health and nutrition while eating a textured lunch together. This study examined whether the CAMCAM program could improve attitude and behavior towards oral health, mastication, and diet as well as ameliorate oral frailty in community-dwelling older adults. DESIGN Single-arm pre-post comparison study. SETTING AND PARTICIPANTS A total of 271 community-dwelling adults (72.3 ± 5.7 years of age; 159 women [58.7%]) in 4 Japanese municipalities were recruited, of which 249 participants (92%) were assessed at the final evaluation. INTERVENTION Participants gathered once a month at community centers to learn about oral health and nutrition while eating a "munchy" textured lunch containing proper nutrition. MEASUREMENTS Oral frailty, frailty, and eating behavior were evaluated with the Oral Frailty Index-8 (OFI-8), Kihon checklist (KCL), and CAMCAM checklist, respectively. Participants were divided into Oral frailty (OF) and Robust groups according to OFI-8 scores. The differences in KCL and CAMCAM checklist results between the OF and Robust groups were statistically tested along with changes in scores after the program. RESULTS KCL and CAMCAM checklist scores were significantly lower in the OF group at the initial assessment. OFI-8 and KCL findings were significantly improved in the OF group after completing the program (all P <0.05). Regarding the CAMCAM checklist, awareness of chewing improved significantly in the Robust group (P=0.009), with a similar tendency in the OF group (P=0.080). CONCLUSION The findings of this pilot study suggest that the CAMCAM program may improve both oral and systemic frailty in addition to attitudes towards chewing, oral health, and meals, especially in individuals with oral frailty. The CAMCAM program merits expansion as a community-based frailty prevention program.
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Affiliation(s)
- R Hidaka
- Koichiro Matsuo, Department of Oral Health Sciences for Community Welfare, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan, Phone: +81-3-5803-4545, E-mail:
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Nakamura A, Kagaya Y, Saito H, Kanazawa M, Sato K, Miura M, Kondo M, Endo H. Efficacy and safety of pemafibrate versus bezafibrate in coronary artery disease patients receiving statin treatment: a randomized, open-label, cross-over study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2665] [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
Fibrates activate peroxisome proliferator-activated receptor (PPAR)-α which is associated with lipid metabolism. Bezafibrate is a non-selective PPAR-α agonist, whereas pemafibrate has been developed as a higher selective PPAR-α agonist.
Objective
The efficacy and safety of pemafibrate for 24-week in patients with dyslipidemia was examined in comparison with bezafibrate.
Methods
Sixty patients with hypertriglyceridemia (fasting triglyceride (TG) level of ≥150 mg/dL) were treated with pemafibrate of 0.2 mg/day or bezafibrate of 400 mg/day for 24-week in a randomized cross-over study. Percent change from baseline in TG levels was the primary endpoint, and that in HDL-C and apolipoprotein A-I (Apo A-I) levels was the secondary endpoints.
Results
A significantly greater reduction in TG percent change was observed in pemafibrate than in bezafibrate (−46.1% vs. −34.7%, p<0.001). There was no significant difference in HDL-C percent change between pemafibrate and bezafibrate (18.4% vs. 14.0%, p=0.067), whereas Apo A-I percent change was significantly greater in pemafibrate than in bezafibrate (9.2% vs. 5.7%, p=0.018). Pemafibrate and bezafibrate significantly decreased alanine aminotransferase (ALT) and gamma-glutamyltransferase (γ-GT) levels, and pemafibrate showed a greater reduction than bezafibrate (ALT: −21.9% vs. −10.6%, p=0.048; γ-GT: −43.5% vs. −33.1%, p=0.025). Creatinine levels significantly increased in both treatments (both p<0.001), however, creatinine percent change was significantly smaller in pemafibrate than in bezafibrate (5.72% vs. 15.5%, p<0.001). There was no difference in frequency of adverse event (AE) or serious AE between two treatments, but frequency of creatinine elevation (≥0.5 mg/d and/or 25%) was significantly higher in bezafibrate than in pemafibrate (16/60 vs. 3/60, p=0.004).
Conclusion
As compared with bezafibrate, pemafibrate is more effective to reduce TG levels and to elevate Apo A-I levels, and it is safer in terms of liver and renal function.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- A Nakamura
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - Y Kagaya
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - H Saito
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - M Kanazawa
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - K Sato
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - M Miura
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - M Kondo
- Iwate Prefectural Central Hospital , Morioka , Japan
| | - H Endo
- Iwate Prefectural Central Hospital , Morioka , Japan
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Funaki T, Kanazawa M, Takahashi S, Seki T, Iguchi A, Kagaya Y, Sato K, Saito H, Kondo M, Miura M, Kawatsu S, Endo H, Oda K, Nakamura A. The orthostatic hypotension in patients with Stanford type A aortic dissection after surgery. Eur J Prev Cardiol 2022. [DOI: 10.1093/eurjpc/zwac056.070] [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]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Orthostatic hypotension (OH) is sometimes observed during cardiac rehabilitation in patients with surgery for aortic dissection. However, little is known about the primary determinant of OH and influence of surgical range on incidence of OH.
Purpose
The aim of this study was to elucidate the incidence of OH in patients with surgery for aortic dissection, and compare it between the patients with ascending aortic replacement surgery (ascending group) and those with ascending aorta and hemiarch or total arch replacement surgery (arch group).
Methods
We analyzed 59 patients who underwent emergent surgery due to Stanford type A aortic dissection from January 2014 to March 2018, and compared the incidence of OH between ascending group (n = 28, age 69.8 ± 11.3 years) and arch group (n = 31, age 64.1 ± 13.0 years).
Results
The incidence of OH in total patients was 30.5%. There were no significant differences in patient characteristics including body tall, body weight, antihypertensive use and progress of rehabilitation between 2 groups. The arch group showed a significant higher incidence of OH as compared with ascending group (arch group: 46.4% vs. ascending group: 16.1%, p = 0.03). Moreover, the patients who occurred OH were significantly taller than those who did not occur OH.
Conclusions
OH was observed in about one third of patients with surgery for aortic dissection and it showed a close relationship with patient’s height and the range repaired by surgical operation. More careful cardiac rehabilitation is needed for tall patients with large area replacement of aorta.
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Affiliation(s)
- T Funaki
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - M Kanazawa
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - S Takahashi
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - T Seki
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - A Iguchi
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - Y Kagaya
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - K Sato
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - H Saito
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - M Kondo
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - M Miura
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - S Kawatsu
- Iwate Prefectural Central Hospital, Department of Cardiovascular surgery, Morioka, Japan
| | - H Endo
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - K Oda
- Iwate Prefectural Central Hospital, Department of Cardiovascular surgery, Morioka, Japan
| | - A Nakamura
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
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Tada Y, Sunada A, Watanabe R, Kanazawa M, Utsumi K. Synthesis of Trispirocyclotriphosphazenes with Oxaphosphorine Rings and Their Crystal and Molecular Structures. Inorg Chem 2021; 60:5014-5020. [PMID: 33733777 DOI: 10.1021/acs.inorgchem.1c00054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Novel trispirocyclotriphosphazenes with oxaphosphorine rings (DOP-PZs) were successfully synthesized by an Appel reaction with phosphoramide, which was prepared from ammonia and 10-chloro-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide derived from 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, generally abbreviated as DOPO. The resulting DOP-PZs were characterized by 1H, 13C{1H}, and 31P{1H} nuclear magnetic resonance spectroscopy and time-of-flight mass spectrometry and shown to consist of cis-trans isomers. Moreover, the crystal and molecular structures of the DOP-PZs were determined by X-ray diffraction; cis- and trans-DOP-PZs (C36H24N3O3P3, M = 639.49 g/mol) were refined to final R1 values of 0.0260 and 0.0463, respectively, with the SHELXL refinement package using least-squares minimization. The crystal of cis-DOP-PZ is trigonal in space group R3c and the following cell constants: a = 19.5984(5) Å, c = 13.2754(4) Å, V = 4415.9(3) Å3, Z = 6, and Flack parameter = 0.038(8). In contrast, trans-DOP-PZ is monoclinic in space group P21/c and the following cell constants: a = 9.98647(18) Å, b = 24.1737(4) Å, c = 12.8472(2) Å, β = 112.649(8)°, V = 2862.26(18) Å3, and Z = 4. The molecular structures of these DOP-PZs were compared with those of other trispirocyclotriphosphazenes. In addition, the DOP-PZs showed high thermal stability up to 400 °C, with dielectric constants of 2.76-2.77 and dissipation factors of 0.0017-0.0031 at 10 GHz.
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Affiliation(s)
- Yuji Tada
- Research and Development Department, Fushimi Pharmaceutical Company, Ltd., Marugame 763-8605, Japan
| | - Atsushi Sunada
- Research and Development Department, Fushimi Pharmaceutical Company, Ltd., Marugame 763-8605, Japan
| | - Riki Watanabe
- Research and Development Department, Fushimi Pharmaceutical Company, Ltd., Marugame 763-8605, Japan
| | - Makoto Kanazawa
- Research and Development Department, Fushimi Pharmaceutical Company, Ltd., Marugame 763-8605, Japan
| | - Keiichiro Utsumi
- Research and Development Department, Fushimi Pharmaceutical Company, Ltd., Marugame 763-8605, Japan
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Nakamura A, Kanazawa M, Kagaya Y, Kondo M, Sato K, Endo H, Nozaki E. Effects of evolocumab on plasma levels of proprotein convertase subtilisin/kexin type 9 and lipoprotein(a) in acute myocardial infarction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3333] [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: 11/15/2022] Open
Abstract
Abstract
Background
There are two types of circulating proprotein convertase subtilisin/kexin type 9 (PCSK9), mature and furin-cleaved. Most types of lipoprotein(a) [Lp(a)], an independent risk factor of cardiovascular events, bound to mature PCSK9.
Purpose
This study examined the effects of monoclonal anti-PCSK9 antibody on plasma PCSK9 and Lp(a) levels in acute myocardial infarction (MI).
Methods
Acute MI patients (n=36) were randomly divided into evolocumab (140 mg; n=17) and non-evolocumab (n=19) groups. Changes in plasma PCSK9 and Lp(a) levels were monitored before and 1, 3, 5, 10, and 20 days after evolocumab administration.
Results
In the non-evolocumab group, plasma levels of mature PCSK9, furin-cleaved PCSK9, and Lp(a) (236.4±57.3 ng/mL, 22.4±5.8 ng/mL, and 19.2. ± 16.5 mg/dL, respectively) significantly increased by day 3 (408.8±77.1 ng/mL, P<0.001; 47.2±15.7 ng/mL, P<0.001; and 39.7±21.3 mg/dL, P<0.005, respectively) and returned to the baseline by day 10 or 20. In the evolocumab group, mature PCSK9 significantly increased by >1000 ng/mL with a simultaneous decline of furin-cleaved PCSK9 below the measurement sensitivity level after day 3. The incremental area under the curve for plasma Lp(a) levels was significantly smaller in the evolocumab group compared with the non-evolocumab group (P=0.038).
Conclusion
Mature and furin-cleaved PCSK9 are transiently upregulated after MI onset. Evolocumab significantly increases mature PCSK9 and decreases furin-cleaved PCSK9 and might inhibit transient increase of plasma Lp(a) in acute MI.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- A Nakamura
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - M Kanazawa
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - Y Kagaya
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - M Kondo
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - K Sato
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - H Endo
- Iwate Prefectural Central Hospital, Morioka, Japan
| | - E Nozaki
- Iwate Prefectural Central Hospital, Morioka, Japan
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Kanazawa M, Toyoda M, Seki T, Iguchi A, Takahashi S, Kagaya Y, Sato K, Saito H, Ito K, Miura M, Kondo M, Kawatsu S, Endo H, Oda K, Nakamura A. Chronotropic incompetence and exercise capacity after mitral valve surgery: the importance of blood hemoglobin level. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Chronotropic incompetence (CI) is sometimes observed during exercise training of cardiac rehabilitation in patients with cardiac surgery, however, little is known concerning the differences between patients with mitral valve (MV) and aortic valve (AV) surgery.
Purpose
Because the possibility exists that cardiac sympathetic nerves might be impaired by left atrium incision, we hypothesized that the incidence of CI was higher in patients with MV surgery (Mitral Valve Replacement and Mitral Valvuloplasty) as compared with patients with AV surgery (Aortic Valve Replacement). And if so, which factor determines the exercise capacity of patients after MV surgery. We thus aimed this study to elucidate the hypothesis with cardiopulmonary exercise testing (CPX).
Methods
We performed CPX by ramp loading with ergometer exercise in total 61 patients who had undergone elective cardiac valve operation (25 patients with MV surgery, age 59.2±9.9 years; 36 patients with AV surgery, age 64.6±12.3 years). We analyzed chronotropic response index (CRI), peak oxygen uptake (peak VO2/W), anaerobic threshold (AT), and peak oxygen pulse (peak VO2/HR) with CPX, and blood hemoglobin concentration (Hb).
Results
The value of CRI was significantly decreased in the patients with MV surgery compared with those with AV surgery (MV; 0.19±0.10 vs. AV; 0.41±0.17, p<0.001). Peak VO2, peak VO2/HR and Hb were not significantly different between patients with MV and those with AV surgery. Patients with MV surgery showed correlations between peak VO2 and Hb (r=0.45, p<0.05), AT and Hb (r=0.52, p<0.01), and a strong correlation between peak VO2 and peak VO2/HR (r=0.63, p<0.001), but not in those with AV surgery.
Conclusions
The present study demonstrated that higher incidence of CI was shown in patients with MV surgery as compared with those with AV surgery. The exercise capacity of patients with MV surgery was determined by peak VO2/HR and Hb. These results suggest that 1) left atrium incision impairs cardiac sympathetic nerves and causes CI, 2) peak VO2/HR which is consisted of arterio-venous oxygen difference and Hb is critical indicator for exercise capacity in patients with MV surgery with CI.
Main results
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Kanazawa
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - M Toyoda
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - T Seki
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - A Iguchi
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - S Takahashi
- Iwate Prefectural Central Hospital, Department of Rehabilitation, Morioka, Japan
| | - Y Kagaya
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - K Sato
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - H Saito
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - K Ito
- Iwate Prefectural Central Hospital, Department of Cardiovascular Surgery, Morioka, Japan
| | - M Miura
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - M Kondo
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - S Kawatsu
- Iwate Prefectural Central Hospital, Department of Cardiovascular Surgery, Morioka, Japan
| | - H Endo
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
| | - K Oda
- Iwate Prefectural Central Hospital, Department of Cardiovascular Surgery, Morioka, Japan
| | - A Nakamura
- Iwate Prefectural Central Hospital, Department of Cardiology, Morioka, Japan
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Kitsuki S, Fukuda K, Matsushita T, Kanazawa M, Matsuki T, Fukushima Y. [A case of pneumococcal meningitis with reversible arterial stenosis]. Rinsho Shinkeigaku 2020; 60:495-499. [PMID: 32536669 DOI: 10.5692/clinicalneurol.60.cn-001429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A 72-year-old male was diagnosed pneumococcal meningitis and we started treatment with antibacterial drugs and corticosteroids. On the 6th day, his consciousness level decreased. On the 7th day DWI of MRI showed a new infarction in bilateral cerebellar, and MRA showed multiple arterial stenosis. On the 12th day, CT angiography showed expansion of cerebral infarction and progress of diffuse stenosis. After that the stenosis improved over time, it disappeared on the 39th day. These results suggest that vasospasm is involved in the pathology of vascular stenosis.
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Affiliation(s)
- Shinji Kitsuki
- Department of Cerebrovascular Medicine, Saint Maria Hospital
| | - Kenji Fukuda
- Department of Cerebrovascular Medicine, Saint Maria Hospital
| | | | - Makoto Kanazawa
- Department of Cerebrovascular Medicine, Saint Maria Hospital
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8
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Ninomiya I, Kanazawa M, Uemura M, Onodera O. Elevated serum pentraxin 3 levels might predict the diagnosis of branch atheromatous disease at a very early stage. Eur J Neurol 2020; 27:1279-1284. [PMID: 32250504 DOI: 10.1111/ene.14249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/29/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE Branch atheromatous disease (BAD) is one of the stroke subtypes caused by occlusion at the origin of a deep penetrating artery of the brain and is associated with a microatheroma or a junctional plaque. Patients with BAD often develop progressive worsening of neurologic deficits, although these patients often present minor stroke with clinical characteristics of lacunar syndrome at the onset. Pentraxin 3 (PTX3) is known to be a key molecule involved in the pathogenesis of atherosclerosis. Although a high level of serum PTX3 is observed in patients with acute coronary syndrome, there are no reports on PTX3 levels in patients with BAD. This study aimed to investigate whether serum PTX3 levels can distinguish BAD from other stroke subtypes. METHODS We investigated 93 patients with ischaemic stroke. Serum PTX3 levels on admission were measured using enzyme-linked immunosorbent assay in patients with BAD and those with other stroke subtypes (each n ≥ 20). RESULTS The median PTX3 levels in patients with BAD (4840 pg/mL) were higher than those with other subtypes of stroke (3397 pg/mL in lacunar stroke, 1298 pg/mL in large-artery atherosclerosis, 1470 pg/mL in cardioaortic embolism and 1006 pg/mL in control) (all P < 0.01). CONCLUSION Our results suggest that elevated serum PTX3 levels might predict the diagnosis of BAD at a very early stage.
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Affiliation(s)
- I Ninomiya
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - M Kanazawa
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - M Uemura
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - O Onodera
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
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Ohya Y, Osaki M, Fujimoto S, Jinnouchi J, Matsuki T, Mezuki S, Kumamoto M, Kanazawa M, Tagawa N, Ago T, Kitazono T, Arakawa S. Usefulness of Transesophageal Echocardiography for Predicting Covert Paroxysmal Atrial Fibrillation in Patients with Embolic Stroke of Undetermined Source. Cerebrovasc Dis Extra 2019; 9:98-106. [PMID: 31542780 PMCID: PMC6787416 DOI: 10.1159/000502713] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 08/13/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Covert paroxysmal atrial fibrillation (CPAF) is a major cause of embolic stroke of undetermined source (ESUS). However, detecting PAF during hospitalization in these patients is difficult. OBJECTIVES This study aimed to determine whether findings of transesophageal echocardiography (TEE) during hospitalization are associated with later detection of PAF in patients with ESUS. METHOD We retrospectively studied 348 patients with ESUS who were admitted to our hospital within 1 week of onset. These patients met the criteria of ESUS, underwent TEE during hospitalization, and were followed up for at least 1 year. RESULTS We found PAF in 35 (10.0%) patients. In patients with PAF, spontaneous echo contrast (SEC) and low left atrial appendage flow (LAAF) by TEE and enlargement of the left atrial dimension (LAD) by transthoracic echocardiography were identified more frequently compared with those who did not have PAF. In multivariate analysis, SEC and an LAD ≥42 mm were independently associated with later detection of PAF (p < 0.05). An association of LAAF <46.9 cm/s and PAF was marginal (p = 0.09). The specificity of the combined finding of SEC and/or LAAF with that of LAD increased up to 90%, while that of LAD alone was 70%. CONCLUSIONS The findings of TEE during hospitalization may be useful for identifying patients at increased risk of CPAF in patients with ESUS.
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Affiliation(s)
- Yuichiro Ohya
- Department of Cerebrovascular Medicine, Stroke Center, Steel Memorial Yawata Hospital, Kitakyushu, Japan,
| | - Masato Osaki
- Department of Cerebrovascular Medicine, Stroke Center, Steel Memorial Yawata Hospital, Kitakyushu, Japan
| | - Shigeru Fujimoto
- Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Juro Jinnouchi
- Department of Cerebrovascular Medicine, Stroke Center, Steel Memorial Yawata Hospital, Kitakyushu, Japan
| | - Takayuki Matsuki
- Department of Cerebrovascular Medicine, Stroke Center, Steel Memorial Yawata Hospital, Kitakyushu, Japan
| | - Satomi Mezuki
- Department of Cerebrovascular Medicine, Stroke Center, Steel Memorial Yawata Hospital, Kitakyushu, Japan
| | - Masaya Kumamoto
- Department of Cerebrovascular Medicine, Stroke Center, Steel Memorial Yawata Hospital, Kitakyushu, Japan
| | - Makoto Kanazawa
- Department of Cerebrovascular Medicine, Stroke Center, Steel Memorial Yawata Hospital, Kitakyushu, Japan
| | - Naoki Tagawa
- Department of Cerebrovascular Medicine, Stroke Center, Steel Memorial Yawata Hospital, Kitakyushu, Japan
| | - Tetsuro Ago
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takanari Kitazono
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shuji Arakawa
- Department of Cerebrovascular Medicine, Stroke Center, Steel Memorial Yawata Hospital, Kitakyushu, Japan
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Abstract
The presence of stem cells within the dental-pulp tissue as well as their differentiation into a new generation of functional odontoblast-like cells constitutes an important step of the dentin-pulp regeneration. Recent investigations demonstrated that the complement system activation participates in 2 critical steps of dentin-pulp regeneration: pulp progenitor's recruitment and pulp nerve sprouting. Surprisingly, its implication in odontoblastic differentiation has not been addressed yet. Since the complement receptor C5a receptor-like 2 (C5L2) is expressed by different stem cells, the aim of this study is to investigate if the dental pulp stem cells express C5L2 and if this receptor participates in odontoblastic differentiation. Immunohistochemistry performed on human third molar pulp sections showed a perivascular co-localization of the mesenchymal stem cell markers STRO1 and C5L2. In vitro immunofluorescent staining confirmed that hDPSCs express C5L2. Furthermore, we determined by real-time polymerase chain reaction that the expression of C5L2 is highly modulated in human dental pulp stem cells (hDPSCs) undergoing odontoblastic differentiation. Moreover, we showed that this odontogenesis-regulated expression of C5L2 is specifically potentiated by the proinflammatory cytokine TNFα. Using a C5L2-siRNA silencing strategy, we provide direct evidence that C5L2 constitutes a negative regulator of the dentinogenic marker DMP1 (dentin matrix protein 1) expression by hDPSCs. Our findings suggest a direct correlation between the odontoblastic differentiation and the level of C5L2 expression in hDPSCs and identify C5L2 as a negative regulator of DMP1 expression by hDPSCs during the odontoblastic differentiation and inflammation processes. This work is the first to demonstrate the involvement of C5L2 in the biological function of stem cells, provides an important knowledge in understanding odontoblastic differentiation of dental pulp stem cells, and may be useful in future dentin-pulp engineering strategies.
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Affiliation(s)
- F Chmilewsky
- 1 Department of Oral Biology, University of Illinois at Chicago, Chicago, IL, USA
| | - R Liang
- 1 Department of Oral Biology, University of Illinois at Chicago, Chicago, IL, USA
| | - M Kanazawa
- 1 Department of Oral Biology, University of Illinois at Chicago, Chicago, IL, USA
| | - I About
- 2 Department of Oral Biology, Aix Marseille Université, Marseille, France
| | - L F Cooper
- 1 Department of Oral Biology, University of Illinois at Chicago, Chicago, IL, USA
| | - A George
- 1 Department of Oral Biology, University of Illinois at Chicago, Chicago, IL, USA
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11
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Hatakeyama M, Sato T, Takahashi T, Kanazawa M, Onodera O, Nishizawa M, Shimohata T. Predictors of cognitive impairment in multiple system atrophy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.659] [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: 11/16/2022]
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12
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Kanazawa M, Miura M, Toriyabe M, Koyama M, Hatakeyama M, Ishikawa M, Nakajima T, Onodera O, Nishizawa M, Shimohata T. Preconditioned protective microglia by oxygen-glucose deprivation promote functional recovery in ischemic rats. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Hama Y, Hosoda A, Komagamine Y, Gotoh S, Kubota C, Kanazawa M, Minakuchi S. Masticatory performance-related factors in preschool children: establishing a method to assess masticatory performance in preschool children using colour-changeable chewing gum. J Oral Rehabil 2017; 44:948-956. [DOI: 10.1111/joor.12553] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Y. Hama
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - A. Hosoda
- Division of Medical Nutrition; Faculty of Healthcare; Tokyo Healthcare University; Tokyo Japan
| | - Y. Komagamine
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - S. Gotoh
- Pediatric Dentistry; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - C. Kubota
- National Institute of Public Health; Tokyo Japan
| | - M. Kanazawa
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - S. Minakuchi
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
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14
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Abe K, Iseki C, Suzuki M, Kokufu H, Arahori Y, Ohno T, Kanazawa M, Takeishi Y. Abstract P4-20-06: Results of an educational program delivered through e-learning, focused on nursing for primary breast cancer patients. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p4-20-06] [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
Aim: An educational program delivered through e-learning was conducted, focusing on nursing for primary breast cancer patients. This paper investigates the results of the program, clarifying changes in levels of understanding before and after the program, and evaluations of the program by nurses who participated. Methods: The content of the education program, which consisted of 24 lessons, each lasting 15-20 minutes, including case studies, covered concerns raised in questions by patients and families about diagnosis, multimodal treatment and nursing for primary breast cancer. Instructors were Certified Nurses in Breast Cancer Nursing and Certified Nurse Specialists in Cancer Nursing, and PowerPoint presentations with video and audio material were created. A dedicated website was created, and 1417 participants took the on-demand program, which was provided from September 2015 to March 2016. Survey participants were the first 500 nurses registered for the course to respond. A questionnaire created by the researchers was sent by post to respondents. Responses were anonymous with identifying information code, and questionnaires were sent with a return envelope before the program (within 2 weeks of registration) and after the program (within 1 month of the end of the program), with return of the questionnaire signifying consent to participate. The questionnaire comprised 24 items on level of understanding of breast cancer nursing, aligned to program content, plus 11 items on evaluation of the program. Responses were selected from a 5-point scale, where 1 meant “strongly disagree” and 5 meant “strongly agree”. Analysis: Responses were quantified, and mean scores for each item were calculated. In addition, respondents were divided into two groups, namely, those with less than 3 years of breast cancer nursing experience (Group A) and those with 3 or more years' experience (Group B), and were compared using the Mann-Whitney U test. SPSS Statistics V22.0 was used. Ethical considerations: The study went through Research Ethics approval at the researchers' institute of affiliation. Results: A total of 126 people replied to both the pre-program and post-program questionnaire, and of these, the responses of 106 nurses (Group A: 34 nurses, Group B: 72 nurses) who were not qualified as Certified Nurses or Certified Nurse Specialists were used for analysis. Median age was 41.0 years (Group A: 38.5 years, Group B: 42 years), and median number of years of breast cancer nursing was 4.6 years. In terms of program evaluation, “I could study when it was convenient for me” scored 4.63, while “It will be useful for breast cancer nursing from now on” scored 4.57. In terms of comparison of level of understanding before and after the program, understanding improved on all 24 items, and was significant on 19 items. Comparison of the 2 groups showed significant difference on 2 items, “support for changes in body image” and “communication with the patient”, with changes in level of understanding in Group A being greater. Discussion: The study suggests that participants' understanding of breast cancer nursing increased and improvements in clinical practice can be expected through e-learning materials that facilitate effective learning.
Citation Format: Abe K, Iseki C, Suzuki M, Kokufu H, Arahori Y, Ohno T, Kanazawa M, Takeishi Y. Results of an educational program delivered through e-learning, focused on nursing for primary breast cancer patients [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P4-20-06.
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Affiliation(s)
- K Abe
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - C Iseki
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - M Suzuki
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - H Kokufu
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - Y Arahori
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - T Ohno
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - M Kanazawa
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
| | - Y Takeishi
- Chiba University Graduate School of Nursing, Chiba, Japan; National Hospital Organization Chiba Medical Center, Chiba, Japan; Kumamoto University Graduate School of Life Science, Kumamoto, Japan; Kushiro City General Hospital, Hokkaido, Japan; Chiba University Hospital, Chiba, Japan; Tohoku University Hospital, Miyagi, Japan; Hiraka General Hospital, Akita, Japan
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15
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Ohya Y, Fujimoto S, Kanazawa M, Tagawa N, Osaki M, Kitazono T. A case of cardioembolic stroke due to intracardiac papillary fibroelastoma evaluated by using transesophageal echocardiography. Rinsho Shinkeigaku 2017; 57:9-13. [PMID: 28049884 DOI: 10.5692/clinicalneurol.cn-000932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A 62-year-old woman had a prior ischemic stroke in the right temporal lobe with dysarthria and dysesthesia of the left hand. Embolic stroke of undetermined source (ESUS) was diagnosed and warfarin was administered. However, transient ischemic attack recurred upon admission to our hospital. Paroxysmal atrial fibrillation and cerebral arterial stenotic lesions were absent. Transesophageal echocardiography revealed a mobile hyperechoic structure on the aortic valve indicating papillary fibroelastoma. She was diagnosed with a brain embolism due to the intracardiac tumor which was surgically excised and pathologically confirmed as papillary fibroelastoma. This type of tumor is relatively rare but it is important as an embolic source especially in ESUS. Transesophageal echocardiography was indispensable for detecting the embolic source in this patient with ESUS.
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Affiliation(s)
- Yuichiro Ohya
- Department of Cerebrovascular Medicine, Stroke Center, Steel Memorial Yawata Hospital
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16
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Tanoue K, Okino H, Kanazawa M, Ueno K. Single-incision laparoscopic transabdominal preperitoneal mesh hernioplasty: results in 182 Japanese patients. Hernia 2016; 20:797-803. [DOI: 10.1007/s10029-016-1540-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 10/08/2016] [Indexed: 01/20/2023]
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17
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Fujimoto S, Osaki M, Tagawa N, Kanazawa M, Oya Y, Kitazono T. Abstract WP115: Atrial Fibrillation and Acute Stroke Recurrence in Minor Stroke Patients With Carotid Stenosis. Stroke 2016. [DOI: 10.1161/str.47.suppl_1.wp115] [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
Background & Purpose:
Carotid stenosis (CS) and atrial fibrillation (AF) can be associated with a bad outcome even in minor stroke. We investigated acute stroke recurrence and short-term outcome in Japanese minor stroke patients with CS with or without AF.
Subjects & Methods:
Among the consecutive 6246 stroke patients who were admitted to the 7 stroke centers within 48 hurs after the onset, 429 patients with acute ischemic stroke with extracranial carotid stenosis (50% or more in diameter measured by using MR angiography or carotid ultrasonography), the initial NIH stroke scale (NIHSS) score of 7 or less, and prior modified Rankin scale (mRS) of 0 or 1 were included in the present study. Patients who were planned for carotid endarterectomy within 3 weeks were excluded. We observed a stroke recurrence and outcome during 3 months. Stroke recurrence was defined as a neurological deterioration (NIHSS score worsening of ≥1 point) with a new ischemic lesion on diffusion weighted image. Good outcome was defined as a mRS score of 0 or 1 at 3 months.
Results:
AF was observed in 94 (22%) patients at hospital discharge. The acute stroke recurrence rate was not different between patients with (11%) and without AF (12%), however, good outcome was less frequent in patients with (39%) than without AF (66%). The Degree of carotid stenosis in NASCET method was more severe in patients with than without acute stroke recurrence (66% vs 59%). The initial diastolic blood pressure, pulse rate, NIHSS Score, WBC, TG, glucose, HbA1c, CRP, and D-dimer values were lower in patients with than without good outcome at 3 months. On the multivariate analysis, AF was negatively associated with good outcome (OR 0.36, 95%CI 0.20-0.0.64). The initial D-dimer value (OR 0.84, 95%CI 0.75-0.94) was also negatively associated with good outcome. Among 94 patients with both CS and AF, combined treatment with both antiplatelet and anticoagulant agents was more frequent in patients with than without good outcome.
Conclusions:
AF and the initial D-dimer value were significant negative predictors for good outcome in patients with CS. Optimal antithrombotic treatment in patients with both CS and AF should be investigated.
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Affiliation(s)
| | - Masato Osaki
- Stroke Cntr, Steel Memorial Yawata Hosp, Kitayushu, Japan
| | - Naoki Tagawa
- Stroke Cntr, Steel Memorial Yawata Hosp, Kitayushu, Japan
| | | | - Yuichiro Oya
- Stroke Cntr, Steel Memorial Yawata Hosp, Kitayushu, Japan
| | - Takanari Kitazono
- Dept of Medicine and Clinical Science, Graduate Sch of Med Sciences, Kyushu Univ, Fukuoka, Japan
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18
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Fujimoto S, Osaki M, Kanazawa M, Tagawa N, Oya Y, Kitazono T. Abstract WP216: Stroke Recurrence in Patients With Cryptogenic Stroke. Stroke 2016. [DOI: 10.1161/str.47.suppl_1.wp216] [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
Background & Purpose:
In cryptogenic stroke or transient ischemic attack (TIA) patients, aortic arch atheroma or patent foramen ovale (PFO) evaluated by using transesophageal echocardiography (TEE) is well known as possible embolic source. These findings were sometimes associated with stroke recurrence. We investigated predictive factors for stroke recurrence in patients with cryptogenic stroke.
Methods:
From February 2008 to December 2013, among 1832 consecutive stroke or TIA patients, 315 patients (male, 57.8%; age, 73.3±10.9) who were admitted within 7 days after the symptom onset without both atrial fibrillation and significant stenosis (50% or more in diameter) in the cerebral arteries underwent TEE for evaluating embolic sources; embolism was the probable etiological mechanism for their event. Patients with malignancy, cerebral arterial dissection, or infarcts in the perforating artery territory were excluded. We observed stroke recurrence during one year and investigated predictive factors for stroke recurrence.
Results:
In TEE, spontaneous echo contrast in the left atrium, aortic arch atheroma of 4.0 mm or more in thickness (mean, 4.65±2.06 mm), PFO, and pulmonary arteriovenous fistula were observed in 24 (7.6%), 223 (70.3%), 26 (8.2%), and 20 (6.3%) patients, respectively. Stroke recurrence was observed in 39 (12.4%) patients. Aortic arch atheroma of 4.0 mm or more, male, and prior hemorrhagic stroke were more frequent, and the initial diastolic blood pressure (DBP) and HbA1c were higher in patients with than without stroke recurrence. On the multivariate analysis using those factors and age, aortic arch atheroma (OR 3.73, 95%CI 1.46–11.7) and the initial DBP (OR 1.03, 95%CI 1.00–1.05) were positive predictors for a stroke recurrence. With regard to the operating characteristic curve analysis, the most accurate cut off values for a stroke recurrence were 4.1mm (AUC 0.59) in aortic arch atheroma thickness and 91mmHg in DBP (AUC 0.58).
Conclusions:
In acute cryptogenic stroke, aortic arch atheroma was observed frequently. Aortic arch atheroma and DBP were significantly associated with one-year stroke recurrence. TEE was required for evaluating aortic arch atheroma in patients with cryptogenic stroke
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Affiliation(s)
| | - Masato Osaki
- Stroke Cntr, Steel Memorial Yawata Hosp, Kitayushu, Japan
| | | | - Naoki Tagawa
- Stroke Cntr, Steel Memorial Yawata Hosp, Kitayushu, Japan
| | - Yuichiro Oya
- Stroke Cntr, Steel Memorial Yawata Hosp, Kitayushu, Japan
| | - Takanari Kitazono
- Dept of Medicine and Clinical Science, Graduate Sch of Med Sciences, Kyushu Univ, Fukuoka, Japan
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19
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Amano T, Ariga H, Kurematsu A, Yamato S, Morioka S, Masaka A, Kanazawa M, Fukudo S. Effect of 5-hydroxytryptamine receptor 4 agonist mosapride on human gastric accommodation. Neurogastroenterol Motil 2015; 27:1303-9. [PMID: 26303048 DOI: 10.1111/nmo.12623] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/26/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND Impaired gastric accommodation is one of the major features of functional dyspepsia. Mosapride citrate is a 5-hydroxytryptamine receptor 4 (5-HT4) agonist, which is shown to improve upper abdominal symptoms. However, effect of mosapride on gastric accommodation was not clear. We tested the hypothesis that mosapride enhances the gastric accommodation in normal individuals. METHODS Fourteen male healthy volunteers completed this study. Single administration of mosapride or placebo was performed randomly with more than 1-week interval. Subjects swallowed a triple-lumen polyvinyl tube with a polyethylene bag. The bag was positioned in the proximal stomach and the minimal distending pressure (MDP) was determined. The ramp distension starting from the MDP was then performed and subjects were instructed to score their perception using ordinate scales. Next the intra-bag pressure was set at MDP + 2 mmHg and a liquid meal was administered 30 min later, and the intra-bag volume was recorded for 60 min. We compared the MDP, perception scores, and the intra-bag volume changes by administering placebo and mosapride. KEY RESULTS Minimal distending pressure was not significantly different in subjects receiving mosapride or placebo. Treatment with mosapride had no effect on intra-bag pressures or volumes inducing first sensation or discomfort. Gastric accommodation, expressed as the difference between pre- and postmeal intra-bag volumes, and the percent change of the intra-bag volumes by the meal was significantly enhanced by mosapride compared with placebo. CONCLUSIONS & INFERENCES This is the first study clearly demonstrating that single administration of 5-HT4 agonist can enhance gastric accommodation in humans. (Umin.ac.jp, number UMIN000014063).
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Affiliation(s)
- T Amano
- Department of Gastroenterology, National Center of Neurology and Psychiatry, Tokyo, Japan.,Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Ariga
- Department of Gastroenterology, National Center of Neurology and Psychiatry, Tokyo, Japan.,Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Kurematsu
- Department of Gastroenterology, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - S Yamato
- Department of Gastroenterology, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - S Morioka
- Department of Pharmacology, National Center of Neurology and Psychiatry, Tokyo, Japan
| | | | - M Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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20
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Yamada A, Kanazawa M, Komagamine Y, Minakuchi S. Association between tongue and lip functions and masticatory performance in young dentate adults. J Oral Rehabil 2015; 42:833-9. [PMID: 26095117 DOI: 10.1111/joor.12319] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [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: 05/17/2015] [Indexed: 11/26/2022]
Abstract
Motor functions of masticatory organs such as the tongue, lips, cheeks and mandible are known to deteriorate with age, thereby influencing masticatory performance. However, there are few reports on the relationships between tongue and lip functions and masticatory performance. To investigate the relationship between tongue and lip functions and comprehensive masticatory performance, by evaluating crushing, mixing and shearing abilities in young dentate adults. Participants comprised 51 dentate adults with a mean age of 25 years. Maximum tongue pressure and oral diadochokinesis were measured to evaluate tongue and lip functions. A multiple sieving method using peanuts was performed to evaluate crushing ability. A colour-changeable chewing gum was performed to evaluate mixing ability. A test gummy jelly was performed to evaluate shearing ability. The relationship between tongue and lip functions and each masticatory performance was assessed using Pearson's correlation coefficients. In addition, stepwise multiple regression analysis was performed to identify predictors of crushing ability. Crushing ability was significantly correlated with maximum tongue pressure and the number of repetitions of the syllables /pa/, /ta/ and /ka/. Maximum tongue pressure and number of repetitions of the syllable /pa/ were identified as significant predictors for crushing ability. Mixing ability was significantly correlated with the number of repetitions of the syllable /pa/. Shearing ability was not significantly correlated with tongue and lip functions. Masticatory performance during the chewing of brittle foods such as peanuts and solid foods such as chewing gum appears to be correlated with tongue and lip functions.
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Affiliation(s)
- A Yamada
- Gerodontology and Oral rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - M Kanazawa
- Gerodontology and Oral rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Komagamine
- Gerodontology and Oral rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Minakuchi
- Gerodontology and Oral rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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21
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Himukai T, Tsunashima Y, Kanazawa M, Mizota M, Shioyama Y, Endo M. SU-E-T-601: Patient Specific QA Check for Radiotherapy with Carbon Beam at SAGA HIMAT. Med Phys 2015. [DOI: 10.1118/1.4924964] [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: 11/07/2022] Open
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22
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Kumamoto M, Fujimoto S, Oosaki M, Kanazawa M, Tagawa N, Nakamizo A, Inoue T, Tuchimochi R, Ishitsuka T. Abstract T P109: Prediction Of Asymptomatic Cerebrovascular Diseases Before Bypass Surgery For Peripheral Artery Disease. Stroke 2015. [DOI: 10.1161/str.46.suppl_1.tp109] [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
Background & Purpose:
Cerebrovascular disease (CVD) and peripheral artery disease (PAD) sometimes coexist with each other. We investigated predictive factors for CVD before bypass surgery for PAD.
Subjects & Methods:
For the present study, 200 consecutive PAD patients who were planned to undergo a bypass surgery for their lower extremity artery were included. Before the surgery, all patients were studied by ankle brachial index (ABI), duplex carotid ultrasonography, magnetic resonance imaging (MRI) including diffusion weighted imaging (DWI), and MR angiography. A stenosis of ≥50% or occlusion of the major intracranial or extracranial cerebral arteries was defined as a significant CVD. We also investigated the predictive factors for significant cerebrovascular lesions.
Results:
Of the total 200 patients (137 men; 69%, 74±9 years old) studied, a significant CVD of the intracranial or extracranial cerebral arteries was observed in 104 (52%) patients: 57 (29%) in intracranial arteries and 68 (34%) in extracranial arteries. There were asymptomatic ischemic lesions on MRI in 116 (59%) patients. Among them, 13 (7%) patients had asymptomatic high-intense lesions on DWI. In patients with significant CVDs, dyslipidemia (63% vs 47%, p=0.0455), diabetes mellitus (67% vs 37%, p<0.001), prior ischemic stroke (65% vs 48%, p=0.0328), and prior ischemic heart disease (63% vs 46%, p=0.0189) were more frequent, and ABI value was lower (0.34 vs 0.45, p=0.0369) in comparison to patients without CVDs. On ROC curve analysis, the most accurate ABI cut-off value for predicting significant CVDs was 0.46. Prevalence of CVDs tended to increase with the increasing number of risk factors described above (44% in patient with 1, 56% in patient with 2, 71% in patient with 3, 69% in patient with 4, 80% in patient with 5; P<0.0001 for armitage trend). On multivariate analysis, dyslipidemia (OR, 1.93; 95% CI, 1.00-3.81) and diabetes mellitus (OR, 3.06; 95% CI, 1.62-5.86) were independent predictors for significant CVDs.
Conclusions:
In PAD patients before the bypass surgery, significant CVDs were observed in 52%. Dyslipidemia and diabetes mellitus were independent predictors for significant CVDs. Number of the predictive factors was also important for predicting CVDs.
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Affiliation(s)
- Masaya Kumamoto
- Stroke Cntr, Steel Memorial Yawata Hosp, Kitakyushu City, Japan
| | - Shigeru Fujimoto
- Stroke center, Steel Memorial Yawata Hosp, Kitakyushu City, Japan
| | - Masato Oosaki
- Stroke center, Steel Memorial Yawata Hosp, Kitakyushu City, Japan
| | - Makoto Kanazawa
- Stroke center, Steel Memorial Yawata Hosp, Kitakyushu City, Japan
| | - Naoki Tagawa
- Stroke center, Steel Memorial Yawata Hosp, Kitakyushu City, Japan
| | - Akira Nakamizo
- Stroke center, Steel Memorial Yawata Hosp, Kitakyushu City, Japan
| | - Takuya Inoue
- Stroke center, Steel Memorial Yawata Hosp, Kitakyushu City, Japan
| | | | - Takao Ishitsuka
- Stroke center, Steel Memorial Yawata Hosp, Kitakyushu City, Japan
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23
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Fujimoto S, Osaki M, Kumamoto M, Kanazawa M, Tagawa N, Ishitsuka T, Kitazono T. Abstract T MP60: Impact of Aortic Arch Atheroma for Stroke Recurrence in Patients With or Without Atrial Fibrillation. Stroke 2015. [DOI: 10.1161/str.46.suppl_1.tmp60] [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
Background & Purpose:
In patients with embolic stroke of undetermined source, aortic arch atheroma evaluated using transesophageal echocardiography (TEE) is a possible embolic source. We investigated the impact of embolic sources including aortic arch atheroma for a stroke recurrences and death.
Methods:
Among the consecutive 1545 acute stroke patients, 542 patients who were admitted within 24 hours after the symptom onset, with ischemic lesions in the cortex or cerebellum on the diffusion-weighted image, NIH stroke scale of 7 or less, and prior modified Rankin scale (mRS) of 0 or 1 were included in the present study. All 542 patients underwent TEE to search for embolic sources. According to the categories of embolic sources, patients were classified into 4 groups: patients with severe aortic arch atheroma of 4mm or more in diameter (group A; n=167), patients with cardiogenic embolic sources such as atrial fibrillation or intracardiac thrombus (group C; n=93), patients with both factors as described above (group B; n=88), and other patients (group O; n=194). We followed them up for average period of 3.2 years, and investigated the frequency of stroke recurrences and death from any cause according to embolic sources.
Results:
Stroke recurrences were observed in 12.0% patients in group A, 11.8% patients in group C, 18.2% patients in group B, and 6.7% patients in group O respectively (p=0.0371). Stroke recurrences and death from any cause occurred in 14.4%, 15.1%, 21.6% and 6.7% patients respectively (p=0.0041). Kaplan-Meier curve analysis revealed a significant difference in the recurrence-free survival among the four groups (p=0.0076, log-rank test). Stroke recurrence was more frequent in group B than group C patients especially in the early phase from the onset. On COX proportional-hazards model analysis and diabetes mellitus (HR 1.73, p=0.0264) and aortic arch atheroma of 4mm or more (HR 1.86, p=0.0146) were significant predictors for stroke recurrences and death from any cause.
Conclusions:
Severe aortic arch atheroma can independently be associated with stroke recurrences and death, furthermore, a combination of aortic arch atheroma and cardiogenic embolic sources showed more frequent events than each of them alone.
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Affiliation(s)
| | - Masato Osaki
- Stroke Cntr, Steel Memorial Yawata Hosp, Kitayushu, Japan
| | | | | | - Naoki Tagawa
- Stroke Cntr, Steel Memorial Yawata Hosp, Kitayushu, Japan
| | | | - Takanari Kitazono
- Dept of Medicine and Clinical Science, Graduate Sch of Med Science, Kyushu Univ, Fukuoka, Japan
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Fujimoto S, Osaki M, Kumamoto M, Kanazawa M, Tagawa N, Ishitsuka T, Kitazono T. Abstract T P70: Outcome of Japanese Minor Stroke Patients Treated Without Intravenous Recombinant Tissue Plasminogen Activator Within 4.5 Hours After the Symptom Onset ~Fukuoka Stroke Registry~. Stroke 2015. [DOI: 10.1161/str.46.suppl_1.tp70] [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
Background & Purpose:
Patients with minor stroke with the initial NIH stroke scale score of 4 or less were often treated without recombinant tissue plasminogen activator (rt-PA) even when they are admitted within 4.5 hours after the symptom onset. We investigated the outcome of minor stroke within 4.5 hours after the symptom onset without intravenous recombinant tissue plasminogen activator therapy.
Methods:
Among consecutive 6246 acute ischemic stroke patients who were admitted to the 7 stroke centers, 963 patients with admission within 4.5 hours after the symptom onset, ischemic lesions on diffusion-weighted image, NIH stroke scale of 4 or less, and prior modified Rankin scale (mRS) of 0 or 1 were included in the present study. Thirty-four (3.5%) of the 963 patients were treated with intravenous rt-PA. In other 926 patients, we observed a neurological deterioration (a NIHSS score worsening of ≥2-point) and stroke recurrence during the first 3 weeks. A good outcome (3 months) at was defined as mRS of 0 or 1.
Results:
Stroke recurrence and neurological deterioration occurred in 3.7% and 9.2% of 926 patients during the first 3 weeks. A good outcome 3 months after admission was observed in 82.3%. Atrial fibrillation and diabetes mellitus were less frequent in patients with than without a good outcome. The initial NIH stroke scale score, LDL-cholesterol, glucose, HbA1c, d-dimer, and CRP values were lower, and the initial HDL-cholesterol and estimated GFR values were higher in patients with than without a good outcome. On multivariate analysis, age (OR 0.94, 95%CI 0.92~0.97), the initial NIH stroke scale score (OR 0.60, 95%CI 0.48~0.74), LDL-cholesterol (OR 0.99, 95%CI 0.98~1.00), and D-dimer (OR 0.92, 95%CI 0.85~0.99) were negatively associated with a good outcome. With regard to the ROC curve analysis, the most accurate cut-off value for predicting a good outcome was 74 years in age, 2 in NIH stroke scale score, 137mg/ml in LDL-cholesterol, and 0.80μg/ml in D-dimer.
Conclusions:
In minor stroke patients treated without rt-PA, age of 75 years or more, NIH stroke scale score of 3 or more, LDL-cholesterol of 138mg/ml or more, or D-dimer of 0.80μg/ml or more could be negative predictor for a good outcome. In such patients, treatment with rt-PA may be considered.
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Affiliation(s)
| | - Masato Osaki
- Stroke Cntr, Steel Memorial Yawata Hosp, Kitayushu, Japan
| | | | | | - Naoki Tagawa
- Stroke Cntr, Steel Memorial Yawata Hosp, Kitayushu, Japan
| | | | - Takanari Kitazono
- Dept of Medicine and Clinical Science, Graduate Sch of Med Science, Kyushu Univ, Kitayushu, Japan
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Su J, Tanaka Y, Muratsubaki T, Kano M, Kanazawa M, Fukudo S. Injection of corticotropin-releasing hormone into the amygdala aggravates visceral nociception and induces noradrenaline release in rats. Neurogastroenterol Motil 2015; 27:30-9. [PMID: 25359531 DOI: 10.1111/nmo.12462] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 09/26/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Corticotropin-releasing hormone (CRH) and its receptor 1 (CRH-R1) play an important role in the colonic response to stress. The central nucleus of the amygdala (CeA) is a major extrahypothalamic site that contains a large number of neurons expressing both CRH and CRH-R1. Here, we verified the hypothesis that CRH in the CeA sensitizes visceral nociception via CRH-R1 with release of noradrenaline, dopamine, and serotonin (5-HT) in the CeA. METHODS In male Wistar rats, visceral sensitivity was quantified by recording the visceromotor response to colorectal distension (CRD) with administration of vehicle, CRH, or the CRH-R1 antagonist CP-154526+ CRH or CRH-R1 antagonist CP-154526 alone into the CeA. Simultaneously, extracellular levels of noradrenaline, dopamine, and 5-HT were measured in the CeA using microdialysis. All data were obtained under restraint conditions. KEY RESULTS Administration of CRH into the CeA significantly increased the number of abdominal muscle contractions in response to CRD. CP-154526 significantly blocked the number of abdominal muscle contractions in response to CRD with the administration of CRH into the CeA. Noradrenaline in the CeA was increased by CRD, further increased by CRH, and inhibited by CRH-R1 antagonist. Dopamine in the CeA was also exaggerated by CRH but was not inhibited by CRH-R1 antagonist. 5-HT in the CeA was unchanged. CONCLUSIONS & INFERENCES These results suggest that CRH in the CeA sensitizes visceral nociception via CRH-R1 with release of noradrenaline.
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Affiliation(s)
- J Su
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Horie T, Kanazawa M, Komagamine Y, Hama Y, Minakuchi S. Association between near occlusal contact areas and mixing ability. J Oral Rehabil 2014; 41:829-35. [DOI: 10.1111/joor.12216] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/30/2014] [Indexed: 01/15/2023]
Affiliation(s)
- T. Horie
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - M. Kanazawa
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
- Oral Health and Society; Faculty of Dentistry; McGill University; Montreal QC Canada
| | - Y. Komagamine
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - Y. Hama
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - S. Minakuchi
- Gerodontology and Oral rehabilitation; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
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Souda H, Yamada S, Kanai T, Takeshita E, Muramatsu M, Kitagawa A, Kanazawa M, Izumiya H, Kano Y. Operation status of the electron cyclotron resonance ion source at Gunma University. Rev Sci Instrum 2014; 85:02A934. [PMID: 24593513 DOI: 10.1063/1.4833922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An ECR ion source of Gunma University Heavy Ion Medical Center, so-called KeiGM [M. Muramatsu, A. Kitagawa, Y. Sakamoto, S. Sato, Y. Sato, H. Ogawa, S. Yamada, H. Ogawa, Y. Yoshida, and A. G. Drentje, Rev. Sci. Instrum. 76, 113304 (2005)], has been operated for cancer therapy and physical/biological experiment since 2010. KeiGM produces typically 230 μA of 10 keV/u C(4+) ions from CH4 gases. The vacuum pressure is kept between 1.2 × 10(-4) and 1.7 × 10(-4) Pa so as to suppress the pulse-to-pulse current fluctuation within ±10%. The extraction electrode is cleaned every 6-8 months in order to remove deposited carbon, which increases the leak current and discharge. In order to investigate the possibility of long-term operation without such maintenances, oxygen aging for the cleaning of the extraction electrode has been tested in the test bench. The same-designed ion sources at National Institute of Radiological Sciences and SAGA Heavy Ion Medical Accelerator in Tosu (SAGA-HIMAT) are also operated with stable C(4+) current, which are suitable for the continuous operation for cancer therapy.
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Affiliation(s)
- H Souda
- Gunma University Heavy Ion Medical Center, Maebashi, Gunma 371-0044, Japan
| | - S Yamada
- Gunma University Heavy Ion Medical Center, Maebashi, Gunma 371-0044, Japan
| | - T Kanai
- Gunma University Heavy Ion Medical Center, Maebashi, Gunma 371-0044, Japan
| | - E Takeshita
- Kanagawa Cancer Center, Yokohama 241-8515, Japan
| | - M Muramatsu
- National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - A Kitagawa
- National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - M Kanazawa
- SAGA Heavy Ion Medical Accelerator in Tosu, Tosu, Saga 841-0071, Japan
| | - H Izumiya
- Accelerator Engineering Corporation, Chiba 263-0043, Japan
| | - Y Kano
- Accelerator Engineering Corporation, Chiba 263-0043, Japan
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Tanaka H, Kanazawa M, Kawakami T, Kido K, Kifune M, Kubo M, Tamimoto Y, Tokitou T, Tokushige A, Nibu K, Miyazaki N, Mitasato H, Yamamoto K, Yamamoto M, Watada T, Fukuta S, Taguchi T. FRI0236 Efficacy and safety of tocilizumab therapy in rheumatoid arthritis: prevalence and predictive factors of sustained remission. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-eular.1363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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29
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Takeuchi T, Harigai M, Tanaka Y, Yamanaka H, Ishiguro N, Yamamoto K, Kanazawa M, Murakami Y, Yoshinari T, Baker D, Miyasaka N, Koike T. FRI0176 Golimumab, a human anti-TNF monoclonal antibody, administered subcutaneously every four weeks as monotherapy in patients with active rheumatoid arthritis despite dmard therapy: 52-week results of clinical, radiographic and pharmacokinetic assessments. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2633] [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: 11/03/2022]
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30
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Tanaka Y, Harigai M, Takeuchi T, Yamanaka H, Ishiguro N, Yamamoto K, Kanazawa M, Murakami Y, Yoshinari T, Baker D, Miyasaka N, Koike T. FRI0177 52-week results of clinical, radiographic and pharmacokinetic assessments: Golimumab, a human anti-TNF monoclonal antibody, administered subcutaneously every four weeks in patients with active rheumatoid arthritis despite methotrexate therapy. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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31
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Komagamine Y, Kanazawa M, Kaiba Y, Sato Y, Minakuchi S, Sasaki Y. Association between self-assessment of complete dentures and oral health-related quality of life. J Oral Rehabil 2012; 39:847-57. [PMID: 22943500 DOI: 10.1111/joor.12004] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2012] [Indexed: 11/30/2022]
Abstract
The purpose of this study was to determine which factors related to patient self-assessment of dentures are associated with changes in oral health-related quality of life (OHRQoL) among edentulous patients after replacement of complete dentures, and to determine whether masticatory performance as determined using an objective method affects the changes in OHRQoL among edentulous patients. As a preliminary study, the existing questionnaire regarding self-assessment of dentures consisting of 39 question items, measured with a 100-mm visual analogue scale, was analysed by factor analysis. Then a questionnaire, composed of 22 question items, was developed containing six subscales of 'function', 'lower denture', 'upper denture', 'expectation', 'aesthetic and speech' and 'importance'. Final participants in the present study comprised 93 edentulous patients requiring new conventional complete dentures (44 men, 49 women; mean age, 75·0 years). These patients were asked to complete the Japanese version of the Oral Health Impact Profile (OHIP)-EDENT, comprising 19 question items for assessment of OHRQoL in edentulous patients, along with the developed questionnaire regarding self-assessment of dentures. Moreover, masticatory performance was measured using a colour-changeable chewing gum. The questionnaire and measurement were completed twice; before and after replacement of complete dentures. Stepwise multiple regression analysis identified 'lower denture' and 'aesthetic and speech' as significant independent variables besides OHIP-EDENT scores before replacement. These results suggest that sufficient retention of lower dentures and appropriate appearance may lead to improved OHRQoL in edentulous patients.
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Affiliation(s)
- Y Komagamine
- Complete Denture Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Ikeda T, Takahashi T, Sato A, Tanaka H, Igarashi S, Fujita N, Kuwabara T, Kanazawa M, Nishizawa M, Shimohata T. Body Temperature and Lactic Acid Level as Prognostic Factors in Hypoglycemic Coma (P07.153). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p07.153] [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: 11/15/2022] Open
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Kawamira K, Igarashi H, Kanazawa M, Takahashi T, Nakada T, Nishizawa M, Shimohata T. Angiopoietin-1 as a Candidate Molecule for Vasoprotection Against Hemorrhagic Transformation after Treatment with Tissue Plasminogen Activator (P05.235). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p05.235] [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: 11/15/2022] Open
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Tada Y, Moriya N, Kanazawa M, Asanuma K, Suzuki A, Koyama S. Preparation and properties of novel oligo(phenylene oxide)-branched cyclophosphazenes. Polym Chem 2012. [DOI: 10.1039/c2py20433a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Takei H, Iitsuka M, Katsuta Y, Kanbayashi S, Sugama Y, Tomori S, Inaniwa T, Kanazawa M, Maruyama K. Profile Evaluation for Carbon Pencil Beam in Matter by Selective Acquisition of Nuclear Fragments. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1572] [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: 10/26/2022]
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Kanazawa M, Watanabe S, Tana C, Komuro H, Aoki M, Fukudo S. Effect of 5-HT4 receptor agonist mosapride citrate on rectosigmoid sensorimotor function in patients with irritable bowel syndrome. Neurogastroenterol Motil 2011; 23:754-e332. [PMID: 21615623 DOI: 10.1111/j.1365-2982.2011.01732.x] [Citation(s) in RCA: 34] [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] [Indexed: 12/14/2022]
Abstract
BACKGROUND The 5-HT(4) receptor agonist, mosapride citrate, accelerates gastric emptying. However, the effect of mosapride on colonic function has not been well investigated. We examined whether mosapride changes rectosigmoid motility and perception in patients with irritable bowel syndrome (IBS). METHODS Thirty-seven patients with IBS and 18 healthy subjects were studied. All subjects underwent a rectosigmoid barostat test to measure pain perception to intraluminal distention and resting smooth muscle motility for 20 min in the fasting state. Irritable bowel syndrome patients were then randomly assigned to receive either mosapride 15 mg (n=19) or placebo (n=18) orally with 200 mL water. Rectosigmoid motility and perception were measured again for 60 min following dosing. Rectosigmoid tone and contractility were evaluated in each 10-min period. KEY RESULTS The pain threshold in the patients was significantly lower than that in controls (P<0.01). There were no differences between mosapride and placebo groups in pain threshold, barostat bag volume, or number of contractions at baseline. Mosapride significantly decreased the mean bag volume (P<0.01; group × period interaction by two-way anova) and increased the mean number of contractions (P<0.05) compared with placebo, but did not affect the perception. In IBS patients with constipation (i.e., excluding diarrhea-predominant subjects), mosapride (n=13) increased rectosigmoid tone (P<0.01) and contractions (P<0.05) more than placebo (n=14). CONCLUSIONS & INFERENCES Mosapride stimulates colonic motility without any adverse effect. These findings suggest that mosapride may have the potential to treat IBS patients with constipation and/or functional constipation. Further clinical trials are warranted to confirm the efficacy of this agent.
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Affiliation(s)
- M Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba, Sendai, Japan.
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Abstract
BACKGROUND The herbal medicine rikkunshito is effective for the treatment of gastrointestinal symptoms in patients with functional dyspepsia. Although some basic studies on the effects of rikkunshito have been reported in rats, its effects on human gastric function have not yet been clarified. Psychosocial stress induces visceral hypersensitivity and elements of rikkunshito may reasonably affect or suppress this process. We conducted a study to verify the hypothesis that rikkunshito improves stress-induced gastric hypersensitivity and/or changes in gastric wall tone. METHODS Nine healthy volunteers (five males, four females) participated in the study. The counterbalanced regimen consisted of a 2-week period of oral administration of 7.5 g day(-1) rikkunshito, then a 2-week period without treatment. Fundic sensorimotor function was examined using a gastric barostat twice on the day after each period. Virtual reality stress was imposed during the measurements of gastric tone and electrocardiogram. KEY RESULTS Stress induced a significant increase in heart rate (P = 0.041), gastric volume (P = 0.008), and phasic volume events (P = 0.049) and a decrease in sensory (P = 0.038), discomfort (P = 0.011), and pain (P = 0.041) thresholds of the stomach. Rikkunshito significantly reduced epigastric fullness (P = 0.037) and perceived stress (P = 0.034) following stimulation of the pain threshold, regardless of stress without the drug. Stress reduced gastric volume at the sensory threshold and increased anxiety at the discomfort threshold, and these responses were significantly inhibited by rikkunshito (P = 0.026, P = 0.022, respectively). CONCLUSIONS & INFERENCES These findings suggest that rikkunshito may improve symptoms and impaired gastric accommodation under distention stimuli of the proximal stomach superimposed by stress.
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Affiliation(s)
- M Shiratori
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Oshiro H, Nagashima Y, Kanazawa M, Sagawa H, Yamanaka S, Inayama Y. Imprint cytology of primary ethmoidal lipid-rich carcinoma combined with adipophilin immunocytochemistry. Cytopathology 2011; 21:420-3. [PMID: 20132263 DOI: 10.1111/j.1365-2303.2010.00736.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Komagamine Y, Kanazawa M, Minakuchi S, Uchida T, Sasaki Y. Association between masticatory performance using a colour-changeable chewing gum and jaw movement. J Oral Rehabil 2011; 38:555-63. [PMID: 21314707 DOI: 10.1111/j.1365-2842.2011.02204.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The purpose of this study was to investigate the relationship between masticatory performance as determined using a colour-changeable chewing gum and mandibular movements. Subjects comprised 45 fully dentate adults (23 men, 22 women; mean age, 28·1 years). The gum was chewed for a specified number of chewing strokes (20, 40, 60, 80, 120 or 160 strokes) without any instructions as to chewing side. A colourimeter was used to measure L*, a* and b* values (CIE-L*a*b* colour system) for the chewed gum, then the difference between two colours in the CIE-L*a*b* colour space (ΔE) for each number of chewing strokes was calculated according to a formula. Index of masticatory performance (ΔE60) for each subject was obtained using ΔE for 20, 40, 60, 80, 120 and 160 strokes. Mandibular movements were recorded using an opto-electric system with six degrees of freedom. Twelve parameters of mandibular movements relating to amplitude, duration, velocity and angle were computed for each cycle, and mean values for 10 cycles (from cycle 11 to 20) were calculated separately. Stepwise multiple regression analysis identified maximum closing velocity and closing angle as predictors accounting for 18% of the variation in ΔE60. These results suggest that lower angles of approach to intercuspation and faster speed during closing duration are associated with colour changes in the colour-changeable chewing gum.
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Affiliation(s)
- Y Komagamine
- Complete Denture Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
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Hirama T, Hagiwara K, Kanazawa M. Tuberculosis screening programme using the QuantiFERON-TB Gold test and chest computed tomography for healthcare workers accidentally exposed to patients with tuberculosis. J Hosp Infect 2011; 77:257-62. [PMID: 21316804 DOI: 10.1016/j.jhin.2010.11.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2010] [Accepted: 11/15/2010] [Indexed: 11/28/2022]
Abstract
Healthcare workers (HCWs) have an increased incidence of tuberculosis (TB). Periodic and as-needed screenings of HCWs exposed to patients with TB are important. We integrated chest computed tomography (CT) and the QuantiFERON-TB Gold (QFT-G) test into our TB screening programme for HCWs. First, contacts were tested using the QFT-G test. Those positive for the QFT-G test were investigated by CT and classified as having active, latent (LTBI), or old TB. Between April 2005 and April 2010, 11 patients who had not been diagnosed with active TB on admission were found to have the disease. A total of 512 close or high risk contacts were identified, and underwent screening. Out of those, 34 (6.64%) were QFT-G positive, whereas 478 (93.36%) were negative. Of the 34 QFT-G-positive HCWs, four had CT findings compatible with active TB and received multidrug treatment; 24 showed no findings of active TB and received isoniazid for six months. All completed their regimens without any adverse effects. The TB screening programme integrating CT and the QFT-G test was safe and feasible. The efficacy of the programme needs to be confirmed by large scale clinical trials.
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Affiliation(s)
- T Hirama
- Department of Respiratory Medicine, Saitama Medical University, Saitama, Japan.
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Hattori T, Watanabe S, Kano M, Kanazawa M, Fukudo S. Differential responding of autonomic function to histamine H₁ antagonism in irritable bowel syndrome. Neurogastroenterol Motil 2010; 22:1284-91, e335. [PMID: 20667004 DOI: 10.1111/j.1365-2982.2010.01568.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [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: 12/29/2022]
Abstract
BACKGROUND The role of histamine in the pathophysiology of irritable bowel syndrome (IBS) is largely unknown. Dysfunction of the autonomic nervous system (ANS) in IBS patients is also not fully confirmed. We hypothesized that blockade of histamine H₁ receptors affects ANS responses differently between IBS subjects and controls. METHODS Subjects were 12 IBS subjects and 12 age- and sex-matched controls. Either 100 μg kg⁻¹ chlorphenamine or the same amount of saline was administered on different days. The rectum was stimulated with electrical currents of 0 mA (sham) or 30 mA. Autonomic nervous system function was measured using mean arterial pressure (MAP), heart rate (HR), high frequency (HF) component of HR variability, low frequency/high frequency ratio (LF/HF ratio) and plasma catecholamines and histamine. Subjective perceived stress during the examination was evaluated on an ordinate scale. KEY RESULTS Mean arterial pressure showed significant effects of diagnosis (P < 0.05) and drug × diagnosis interaction (P < 0.05). The MAP significantly increased after chlorphenamine administration in IBS subjects, but not in controls. Heart rate revealed a significant drug effect (P < 0.001), which decreased after chlorphenamine administration in controls, but not in IBS subjects. Perceived stress significantly increased by rectal stimulation (P < 0.001) and a significant stimulus × diagnosis interaction (P < 0.05) was revealed, indicating greater reduction in IBS subjects by chlorphenamine. CONCLUSION & INFERENCES Sympathetic vasomotor tone in IBS subjects differentially responded on administration of a histamine H₁ antagonist to that of controls. These findings suggest an increased histaminergic activity in IBS subjects.
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Affiliation(s)
- T Hattori
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Aoba, Sendai, Japan
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Tana C, Umesaki Y, Imaoka A, Handa T, Kanazawa M, Fukudo S. Altered profiles of intestinal microbiota and organic acids may be the origin of symptoms in irritable bowel syndrome. Neurogastroenterol Motil 2010; 22:512-9, e114-5. [PMID: 19903265 DOI: 10.1111/j.1365-2982.2009.01427.x] [Citation(s) in RCA: 186] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND The profile of intestinal organic acids in irritable bowel syndrome (IBS) and its correlation with gastrointestinal (GI) symptoms are not clear. We hypothesized in this study that altered GI microbiota contribute to IBS symptoms through increased levels of organic acids. METHODS Subjects were 26 IBS patients and 26 age- and sex-matched controls. Fecal samples were collected for microbiota analysis using quantitative real-time polymerase chain reaction and culture methods, and the determination of organic acid levels using high-performance liquid chromatography. Abdominal gas was quantified by image analyses of abdominal X-ray films. Subjects completed a questionnaire for GI symptoms, quality of life (QOL) and negative emotion. KEY RESULTS Irritable bowel syndrome patients showed significantly higher counts of Veillonella (P = 0.046) and Lactobacillus (P = 0.031) than controls. They also expressed significantly higher levels of acetic acid (P = 0.049), propionic acid (P = 0.025) and total organic acids (P = 0.014) than controls. The quantity of bowel gas was not significantly different between controls and IBS patients. Finally, IBS patients with high acetic acid or propionic acid levels presented with significantly worse GI symptoms, QOL and negative emotions than those with low acetic acid or propionic acid levels or controls. CONCLUSIONS & INFERENCES These results support the hypothesis that both fecal microbiota and organic acids are altered in IBS patients. A combination of Veillonella and Lactobacillus is known to produce acetic and propionic acid. High levels of acetic and propionic acid may associate with abdominal symptoms, impaired QOL and negative emotions in IBS.
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Affiliation(s)
- C Tana
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Soma T, Nakagome K, Kobayash T, Takaku Y, Yamaguchi T, Hagiwara K, Kanazawa M, Nagata M. Theophylline Attenuates Eosinophil Adhesion To Interferon (IFN)-gamma-stimulated Endothelial Cells. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kanazawa M, Hamaguchi T, Watanabe S, Terui T, Mine H, Kano M, Fukudo S. Site-specific differences in central processing of visceral stimuli from the rectum and the descending colon in men. Neurogastroenterol Motil 2010; 22:173-80, e53. [PMID: 19825012 DOI: 10.1111/j.1365-2982.2009.01417.x] [Citation(s) in RCA: 7] [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: 02/08/2023]
Abstract
BACKGROUND It has been reported that different brain activation areas are demonstrated during somatosensory and visceral stimulation. However, no study thus far has investigated how activated patterns in the human brain differ during visceral stimulation of different sites of the digestive tracts. The aim of this study was to determine possible site-specific differences in brain responses and perceptions during visceral stimulation of two different sites, the intraluminal distentions of the rectum and descending colon. METHODS Regional cerebral blood flow was assessed in 32 healthy right-handed male subjects using H(2)(15)O positron emission tomography during distention of the rectum (R group, n = 16) or descending colon (DC group, n = 16) at 40 or 20 mmHg. KEY RESULTS R group reported significantly higher scores of abdominal pain (P < 0.05) and urge to defecate (P < 0.001) during the application of stimulus at 40 mmHg compared with DC group but not of abdominal bloating or anxiety. In comparisons of response to the 40-mmHg stimulus, R group showed significantly greater activation in posterior midcingulate cortex (MCC) and right anterior and posterior insula, whereas DC group showed greater activation in subgenual anterior cingulate cortex (ACC), perigenual ACC and left orbitofrontal and superior temporal cortices. CONCLUSIONS & INFERENCES These findings suggest that central projections of painful visceral stimulation from the rectum and descending colon differ in affective, cognitive and nociceptive processing in the brain, which may result in different perceptions of visceral stimulation from different sites.
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Affiliation(s)
- M Kanazawa
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan.
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Komeda K, Yokoi N, Kanazawa M, Noda M, Kitada K, Tanaka A, Suda S, Ito H, Serikawa T, Kanazawa Y. Establishment of two substrains, diabetes prone and non-diabetic, from LETL rats with low incidence of IDDM: some characteristics and genetic analyses. Exp Clin Endocrinol Diabetes 2009. [DOI: 10.1055/s-0029-1211910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Katagiri S, Nitta H, Nagasawa T, Uchimura I, Izumiyama H, Inagaki K, Kikuchi T, Noguchi T, Kanazawa M, Matsuo A, Chiba H, Nakamura N, Kanamura N, Inoue S, Ishikawa I, Izumi Y. Multi-center intervention study on glycohemoglobin (HbA1c) and serum, high-sensitivity CRP (hs-CRP) after local anti-infectious periodontal treatment in type 2 diabetic patients with periodontal disease. Diabetes Res Clin Pract 2009; 83:308-15. [PMID: 19168253 DOI: 10.1016/j.diabres.2008.10.016] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2008] [Revised: 10/14/2008] [Accepted: 10/21/2008] [Indexed: 01/03/2023]
Abstract
The purpose of this study was to examine whether periodontal treatment incorporating topical antibiotic therapy affects on levels of glycohemoglobin (HbA1c) and serum high-sensitivity C-reactive protein (hs-CRP) in type 2 diabetic patients with periodontal disease, and to explore the relationship between CRP and glycemic control. The whole intervention group (n=32), which underwent anti-infectious periodontal treatment, showed only transient reduction in HbA1c levels without any change in hs-CRP, while the control group (n=17) did not show any changes in HbA1c or hs-CRP. Multiple regression analysis of all subjects revealed that BMI and change in hs-CRP correlated significantly with the reduction of HbA1c at 6 months after the periodontal treatment. Based on the results of multiple regression analysis, the intervention group was subdivided into two groups: those in which hs-CRP levels decreased (CRP-D group), and those in which hs-CRP levels unchanged or increased (CRP-N group) (n=16, respectively), and re-analysis was conducted based upon these subgroups. In the CRP-D subgroup, HbA1c was significantly reduced at the end of the study, but it did not decrease in the CRP-N subgroup. The decrease of HbA1c in the CRP-D subgroup following periodontal treatment was significantly greater than that in the CRP-N subgroup. BMI of each group remained unchanged in this study at the end of the study. Thus, the results suggested that periodontal treatment with topical antibiotics improves HbA1c through reduction of CRP, which may relate to amelioration of insulin resistance, in type 2 diabetic patients with periodontal disease.
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Affiliation(s)
- S Katagiri
- Periodontology, Department of Hard Tissue Engineering, Tokyo Medical and Dental University Graduate School, Tokyo, Japan
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Yamaguchi T, Takaku Y, Nakagome K, Soma T, Hagiwara K, Kanazawa M, Nagata M. Effects of β2-agonist on the Productions of Th1 and Th2 cytokines by Mononuclear Cells from patients with asthma. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.191] [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: 10/21/2022]
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Kobayashi T, Takaku Y, Yokote A, Miyazawa H, Soma T, Hagiwara K, Kanazawa M, Nagata M. Interferon-beta augments eosinophil adhesion-inducing activity of endothelial cells. Eur Respir J 2008; 32:1540-7. [PMID: 18653650 DOI: 10.1183/09031936.00059507] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Viral infections induce exacerbations of asthma. One of the earliest host responses to viral infections is the production of innate cytokines including type I interferons (IFNs), such as IFN-beta, which may act to modify airway inflammation. The objective of the present study was to investigate whether IFN-beta modifies the eosinophil adhesion-inducing activity of endothelial cells. Human umbilical vein endothelial cells (HUVECs) were stimulated with IFN-beta for 24 h in the presence or absence of tumour necrosis factor (TNF)-alpha. Eosinophils were isolated from the peripheral blood of healthy volunteers. The ability of the IFN-beta-stimulated HUVEC monolayers to induce eosinophil adhesion was assessed according to the eosinophil peroxidase assay. Eosinophil adhesion to HUVECs was significantly augmented by IFN-beta in the presence of TNF-alpha but not in its absence. The augmented adhesion was inhibited by anti-alpha(4) integrin monoclonal antibody (mAb) or anti-beta(2) integrin mAb. IFN-beta significantly enhanced the expression of vascular cell adhesion molecule-1 and intercellular adhesion molecule-1 on HUVECs in the presence of TNF-alpha. Interferon-beta can augment the adhesiveness of endothelial cells to eosinophils, mainly through the expression of vascular cell adhesion molecule-1 and intercellular adhesion molecule-1. This action of interferon-beta may contribute to the intensification of airway inflammation in asthma that is associated with exacerbations induced by viral infections.
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Affiliation(s)
- T Kobayashi
- Dept of Respiratory Medicine, Saitama Medical University, Saitama, Japan
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Abstract
We investigated the incidence and clinical features of patients with myasthenia gravis (MG) associated with autoimmune diseases. Associated autoimmune diseases were found in 28 of 142 consecutive Japanese MG patients (19.7%), amongst which Graves' disease (7.7%) and Hashimoto's thyroiditis (4.2%) were predominant. The clinical features of MG patients with Graves' disease were different from those of MG patients without autoimmune diseases in terms of age at onset of MG symptoms (35.5 +/- 4.0 years and 49.0 +/- 1.7 years; P < 0.05), positivity for the anti-acetylcholine receptor antibody (44.4% and 89.8%; P < 0.05), and association with thymic hyperplasia (72.7 and 17.9%; P < 0.05). The therapeutic outcome of MG patients with Graves' disease and that of those without autoimmune diseases were not significantly different. Further studies should be performed to investigate whether MG associated with Graves' disease is a distinct subtype of MG.
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Affiliation(s)
- M Kanazawa
- Department of Neurology, Brain Research Institute, Niigata University, Asahimachi-dori, Niigata, Japan
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