1.Influence of 10-MDP concentration on the adhesion and physical properties of self-adhesive resin cements
Kazuhiko SHIBUYA ; Naoko OHARA ; Serina ONO ; Kumiko MATSUZAKI ; Masahiro YOSHIYAMA
Restorative Dentistry & Endodontics 2019;44(4):e45-
OBJECTIVES: Self-adhesive resin cements contain functional monomers that enable them to adhere to the tooth structure without a separate adhesive or etchant. One of the most stable functional monomers used for chemical bonding to calcium in hydroxyapatite is 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP). The aim of this study was to evaluate the influence of the10-MDP concentration on the bond strength and physical properties of self-adhesive resin cements. MATERIALS AND METHODS: We used experimental resin cements containing 3 different concentrations of 10-MDP: 3.3 wt% (RC1), 6.6 wt% (RC2), or 9.9 wt% (RC3). The micro-tensile bond strength of each resin cement to dentin and a hybrid resin block (Estenia C&B, Kuraray Noritake Dental) was measured, and the fractured surface morphology was analyzed. Further, the flexural strength of the resin cements was measured using the three-point bending test. The water sorption and solubility of the cements following 30 days of immersion in water were measured. RESULTS: The bond strength of RC2 was significantly higher than that of RC1. There was no significant difference between the bond strength of RC2 and that of RC3. The water sorption of RC3 was higher than that of any other cement. There were no significant differences in the three-point bending strength or water solubility among all three types of cements. CONCLUSIONS: Within the limitations of this study, it is suggested that 6.6 wt% 10-MDP showed superior properties than 3.3 wt% or 9.9 wt% 10-MDP in self-adhesive resin cement.
Adhesives
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Calcium
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Dentin
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Durapatite
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Immersion
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Resin Cements
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Solubility
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Tooth
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Water
2.Trough level of infliximab is useful for assessing mucosal healing in Crohn's disease: a prospective cohort study.
Akihiro KOGA ; Toshiyuki MATSUI ; Noritaka TAKATSU ; Yasumichi TAKADA ; Masahiro KISHI ; Yutaka YANO ; Takahiro BEPPU ; Yoichiro ONO ; Kazeo NINOMIYA ; Fumihito HIRAI ; Takashi NAGAHAMA ; Takashi HISABE ; Yasuhiro TAKAKI ; Kenshi YAO ; Hirotsugu IMAEDA ; Akira ANDOH
Intestinal Research 2018;16(2):223-232
BACKGROUND/AIMS: Decreased trough levels of infliximab (TLI) and antibodies to infliximab (ATI) are associated with loss of response (LOR) in Crohn's disease. Two prospective studies were conducted to determine whether TLI or ATI better correlates with LOR (Study 1), and whether TLI could become a predictor of mucosal healing (MH) (Study 2). METHODS: Study 1 was conducted in 108 patients, including those with LOR and remission to compare ATI and TLI in discriminating the 2 conditions based on receiver operating characteristic (ROC) curve analyses. Study 2 involved 35 patients who were evaluated endoscopically. RESULTS: In Study 1, there were no differences between the 2 assays in ROC curve analyses; the TLI cutoff value for LOR was 2.6 µg/mL (sensitivity, 70.9%; specificity, 79.2%), and the ATI cutoff value was 4.9 µg/mL (sensitivity, 65.5%; specificity, 67.9%). The AUROC (area under the ROC curve) of TLI was greater than that of ATI. AUROC was useful for discriminating between the 2 conditions. In Study 2, the TLI was significantly higher in the colonic MH group than in the non-MH group (2.7 µg/mL vs. 0.5 µg/mL, P=0.032). CONCLUSIONS: TLI is better than ATI for clinically diagnosing LOR, and a correlation was observed between TLI and colonic MH.
Antibodies
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Cohort Studies*
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Colon
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Crohn Disease*
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Humans
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Infliximab*
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Prospective Studies*
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ROC Curve
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Sensitivity and Specificity
3.Coronary-Pulmonary Artery Fistula Complicated with a Left Coronary Artery
Masahiro Saito ; Dai Kawashima ; Satoru Maeba ; Minoru Ono
Japanese Journal of Cardiovascular Surgery 2017;46(5):217-221
An 84-year-old woman was referred due to an abnormal shadow on her chest X-ray. Computed tomography and coronary angiography revealed a left coronary artery aneurysm associated with a complex coronary-pulmonary artery fistula. We present our surgical strategy used to treat this complicated pathology.
4.Efficacy of palliative radiation for advanced gastric cancer patients
Shuji Hiramoto ; Ayako Kikuchi ; Akira Yoshioka ; Yuka Otsu ; Yasushi Kohigashi ; Yoko Goto ; Yurie Tsutsumi ; Masahiro Hiraoka ; Koji Ono
Palliative Care Research 2015;10(2):514-517
We have several choices against bleeding and obstruction in advanced gastric cancer patients such as surgical or endoscopic therapy. But we have few reports about palliative radiation. We conduct this study that we perform palliative radiation for unresectable advanced gastric cancer patients between April 2006 and March 2014 in single center. In the aim of the therapy, to stop gastric bleeding were 8, and to improve obstruction depend on gastric cancer were 4. Response rate of stop bleeding was 63%, and improve obstruction was 50%. Median duration of stop bleeding was 103 day, and improve obstruction was 52 day. Overall survival time was 567 day, survival time after the start of radiotherapy was 105days. Radiotherapy was limited in cases because onset time of response needed in comparison with surgical or endoscopic therapy. However, given minimally invasive therapy and a certain response, we can choice it so much more.
5.Survey Research on Prevalence, Aim and Image of Acupuncture and Moxibustion in Japan(1): Prevalence and Aim of Acupuncture and Moxibustion.
Naoto ISHIZAKI ; Masahiro IWA ; Tadashi YANO ; Noaoya ONO ; Shuzo NISHIMURA ; Kenji KAWAKITA ; Shohachi TANZAWA
Journal of the Japan Society of Acupuncture and Moxibustion 2005;55(5):697-705
[Objective] To clarify the prevalence and aim of acupuncture and moxibustion treatment as well as reasons for choosing this remedy in Japan.
[Methods] We conducted direct interviews with 2, 000 adults (aged 20 years or older) in a stratified two stage sampling in March, 2003.
[Results] Of those interviewd, 71% (1, 420 / 2, 000) responded to the survey of demographics, experience, aim and reasons for choosing acupuncture and/or moxibustion. A total of 7.5% of the population had used Acupuncture and/or Moxibustion during the past 12 months and a total of 26.4% had experienced at least one of these treatment during their lifetime. The most frequent symptoms being treated involved musculoskeletal prob-lems (81.6%), and the most frequent reason for choosing the treatment was the recommendation of family or friends (58.7%).
[Conclusion and Discussion] The prevalence of choosing acupuncture and moxibustion in Japan was higher than that in the U. S. or Europe, which might reflect the history of these methods as popular folk remedies in Japan. The most frequent reason for choosing these remedy might be related to the treatment methods requiring direct contact and stimulation of the body.
6.Experimental Study in Economic Evaluation of Acupuncture and Moxibustion and the Course of Future Study
Masahiro IWA ; Shigeru URATA ; Naoya ONO ; Fumio KONDO ; Kenta SAWAZAKI ; Tatsuro HONDA ; Noriko HORI ; Tadashi YANO ; Kenji KAWAKITA
Journal of the Japan Society of Acupuncture and Moxibustion 2004;54(1):65-71
Nobody studies economic evaluation of acupuncture and moxibustion in Japan. To establish a method of economic evaluation of acupuncture and moxibustion, we introduced case study of economic evaluation of acupuncture and moxibustion at work. In addition, we examined a course of study that annex economic evaluation to a study of acupuncture and moxibustion. This manuscript introduces two case studies of economic evaluation and essential points of economic evaluation.
7.A Research of Literature on Economic Analysis of Acupuncture
Masahiro IWA ; Shigeru URATA ; Naoya ONO ; Fumio KONDO ; Kenta SAWAZAKI ; Tatsuro HONDA ; Noriko HORI ; Tadashi YANO ; Kenji KAWAKITA ; Shohachi TANZAWA
Journal of the Japan Society of Acupuncture and Moxibustion 2003;53(1):62-70
Objective : To research reports of economic analysis of acupuncture therapy.
Method : Searches were performed in Medline for reports of cost description, economic, randomized controlled trial, cost effectiveness, or cost benefit. Studies were included if they reported original data from any form of standard economic analysis.
Results : A total of 15 papers was found. These studies were investigated as follows : angina pectoris, carpal tunnel syndrome, stroke, knee osteoarthrosis, low back pain, musculoskeletal disease, migraine, acupuncture analgesia. On the other hand, only one paper was found in Japan.
Conclusion : Almost studies were noncntrolled trial, non-rigorous and retrospective studies. In future there is a need for high quality and rigorous studies of the cost and benefits of acupuncture.
8.Somatoform Disorders among Patients Who Visit Kampo Clinic.
Hiroko MIZUSHIMA ; Yutaka ONO ; Shigenobu KANBA ; Kazuo YAMADA ; Tomoko YOROZU ; Hiroyuki YAMADA ; Motoko FUKUZAWA ; Koichi ISHII ; Hiroaki OTA ; Takaaki MURATA ; Masahiro ASAI
Kampo Medicine 1997;48(1):23-29
It has been experienced that Kampo, with its philosophy that every disease is psychosomatic in origin and that herbs affect both the psyche and the soma, sometimes has a dramatic effect on somatoform disorders, though there has been no study examining the effects of Kampo on somatoform disorders. In this preliminary study, the morbidity of somatoform disorders among patients who visited the Keio Kampo Clinic and the patients' psychological well-being were examined.
One hundred patients (17 males and 83 females; mean age [±SD], 39±16) who sought Kampo treatment for the first time at Keio University Hospital participated in this study. A Japanese checklist derived from the somatoform disorders schedule (version 1.1) was used to check the somatoform symptoms. To assess psychological well-being, the subjective well-being inventory (SUBI) was performed. The subjects' clinical records were examined afterwards to rule out symptoms which could be medically explained.
Somatoform patients and medically ill (non-somatoform) patients were 65% and 26% of the total respectively. The somatoform patients showed significantly lower SUBI positive scores than the non-somatoform patients (p=0.042), while SUBI negative scores were significantly higher (p=0.001). Among the somatoform patients, there was a negative correlation between numbers of somatoform symptoms and SUBI positive scores (r=0.267; p=0.032), and a positive correlation between numbers of somatoform symptoms and SUBI negative scores (r=0.337; p=0.006).
Following the SUBI scores through treatment courses may lead to a better understanding of the pathology of somatoform disorders and to more effective use of Kampo.
9.Open Heart Surgery without Homologous Blood with Particular Reference to Preoperative Collection of Autologous Blood and Ultrafiltration during Extracorporeal Circulation.
Takashi Ono ; Fumio Iwatani ; Tsuguo Igari ; Masahiro Tanji ; Masaaki Watanabe ; Shunichi Hoshino
Japanese Journal of Cardiovascular Surgery 1996;25(6):377-384
We studied 90 consecutive cases undergoing open heart surgery with preoperative collection of autologous blood and ultrafiltration during extracorporeal circulation. Among the 58 out of 90 patients (64.4%), open heart surgeries were achieved without homologous blood. We evaluated 13 factors (age, height, weight, body surface area, cardiopulmonary bypass time, aortic cross clamping time, dilutional rate, Hct before predonation, lowest Hct during cardiopulmonary bypass, amount of predonated autologous blood, term of autologous blood predonation, amount of bleeding during surgery, amount of bleeding after surgery) in connection with open heart surgery without homologous blood. Among these factors, age, body surface area, cardiopulmonary bypass time, aortic cross clamping time, lowest Hct during cardiopulmonary bypass, amount of predonated autologous blood, amount of bleeding during surgery and amount of bleeding after surgery demonstrated differed significantly between the only autologous blood transfusion group and the homologous blood transfusion group. According to the evaluation by multivariate regression analysis of these factors, the amount of bleeding after surgery was the most contributor to open heart surgery without homologous blood, followed by amount of bleeding during surgery and body surface area. We concluded that open heart surgery without homologous blood may be achieved in more patients by understanding these factors. Autologous blood predonation by the “leapfrog” method, control of the dilution rate by ultrafiltration during extracorporeal circulation and fresh autologous blood transfusion after extracorporeal circulation were effective to achieve open heart surgery without homologous blood.
10.A Case Report of Single Left Coronary Artery with a Fistula to the Right Ventricle
Takashi Ono ; Fumio Iwaya ; Tuguo Igari ; Kenichi Hagiwara ; Masahiro Tanji ; Hirono Satokawa ; Masaaki Watanabe ; Hirofumi Midorikawa ; Youichi Satoh ; Shunichi Hoshino
Japanese Journal of Cardiovascular Surgery 1995;24(4):257-259
This is a case report of a rare combination of a single coronary artery and a coronary artery fistula. An 8-year-old girl was asymptomatic with a grade II continuous murmur in the third left intercostal space. Selective coronary angio-graphy revealed that a single coronary artery arising from the left aortic sinus was dilated and ended as a fistula to the outflow tract of the right ventricle. At operation, the fistula could not be exposed on the surface of the heart. On cardiopulmonary bypass, the aorta was clamped, and the fistula was closed by direct suture in the right ventricle. The postoperative course was uneventful with no complications.


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