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Kimura H, Kishi S, Narita H, Tanaka T, Okada T, Fujisawa D, Sugita N, Noma S, Matsumoto Y, Ohashi A, Mitsuyasu H, Yoshida K, Kawasaki H, Nishimura K, Ogura Y, Ozaki N. Comorbid psychiatric disorders and long-term survival after liver transplantation in transplant facilities with a psychiatric consultation-liaison team: a multicenter retrospective study. BMC Gastroenterol 2023; 23:106. [PMID: 37020184 PMCID: PMC10074684 DOI: 10.1186/s12876-023-02735-1] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 03/20/2023] [Indexed: 04/07/2023] Open
Abstract
OBJECTIVE Comorbid psychiatric disorders negatively affect the survival rate of patients with some physical disorders. In liver transplant recipients, various psychiatric disorders have been identified as worsening prognosis. However, little is known about how the presence of any comorbid (overall) disorders affect the survival rate of transplant recipients. In this study, we examined the effect of overall comorbid psychiatric disorders on survival rate in liver transplant recipients. METHODS A total of 1006 recipients who underwent liver transplantation between September 1997 and July 2017 across eight transplant facilities with a psychiatric consultation-liaison team were identified consecutively. Recipients were categorized into those with comorbid psychiatric disorders and those without comorbid psychiatric disorders. In the comorbid psychiatric disorder group, psychiatric disorder diagnosis and time of diagnosis were investigated retrospectively. RESULTS Of the 1006 recipients, 294 (29.2%) had comorbid psychiatric disorders. Comorbid psychiatric disorders in the 1006 recipients were insomnia (N = 107, 10.6%), delirium (N = 103, 10.2%), major depressive disorder (N = 41, 4.1%), adjustment disorder (N = 19, 1.9%), anxiety disorder (N = 17, 1.7%), intellectual disability (N = 11, 1.1%), autism spectrum disorder (N = 7, 0.7%), somatic symptom disorder (N = 4, 0.4%) schizophrenia (N = 4, 0.4%), substance use disorder (N = 24, 2.4%) and personality disorder (N = 2, 0.2%). The most common time of psychiatric disorder diagnosis was within the first 3 months after liver transplantation (51.6%). The final mortality in patients with comorbid psychiatric disorder diagnosis during the five periods (pretransplant, transplant to 3 months, months to 1 year, 1 to 3 years, and over 3 years posttransplant) was 16.2%, 18.8%, 39.1%, 28.6%, and 16.2% respectively, and there were no significant differences between the five periods (χ2 = 8.05, df = 4, p = 0.09). Overall comorbid psychiatric disorders were significantly associated with shorter survival time (log-rank test: p = 0.01, hazard ratio: 1.59 [95% confidence interval: 1.14-2.21], survival rate at the endpoint [%]: 62.0 vs. 83.3). However, after adjusting for confounding variables using Cox proportional hazards regression, there was no significant effect of overall comorbid psychiatric disorders on prognosis. CONCLUSION Comorbid psychiatric disorders did not affect the survival rate of liver transplant recipients in this study.
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Affiliation(s)
- Hiroyuki Kimura
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Showa-Ku, Nagoya, 466-8560, Japan.
| | - Shinichi Kishi
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Showa-Ku, Nagoya, 466-8560, Japan
| | - Hisashi Narita
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Kita14, Nishi5, Kita-Ku, Sapporo, 060-8648, Japan
| | - Teruaki Tanaka
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Kita14, Nishi5, Kita-Ku, Sapporo, 060-8648, Japan
- Department of Psychiatry, KKR Sapporo Medical Center, 1-6-3-40, Hiragishi, Toyohira-Ku, Sapporo, 062-0931, Japan
| | - Tsuyoshi Okada
- Department of Psychiatry, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-Shi, Tochigi, 329-0498, Japan
| | - Daisuke Fujisawa
- Department of Neuropsychiatry, Keio University Graduate School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Naoko Sugita
- Department of Psychiatry, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Shun'ichi Noma
- Department of Psychiatry, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Yosuke Matsumoto
- Okayama University Hospital Gender Center, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
| | - Ayako Ohashi
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Hiroshi Mitsuyasu
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
- Department of Psychiatry, Tanushimaru Central Hospital, 892 Masuoda, Tanushimaru, Kurume, Fukuoka, 839-1213, Japan
| | - Keizo Yoshida
- Kariya Yoshida Mental Clinic, 2F, FBterrace Bldg, 2-40 Aioi-Cho, Kariya-Shi, Aichi, 448-0027, Japan
| | - Hiroaki Kawasaki
- Department of Psychiatry, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-Ku, Fukuoka, 814-0180, Japan
| | - Katsuji Nishimura
- Department of Psychiatry, Tokyo Women's Medical University School of Medicine, 8-1 Kawada-Cho, Shinjyuku-Ku, Tokyo, 162-8666, Japan
| | - Yasuhiro Ogura
- Department of Transplantation Surgery, Nagoya University Hospital, 65 Tsurumai-Cho, Showa-Ku, Nagoya, 466-8560, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Showa-Ku, Nagoya, 466-8560, Japan
- Institute for Glyco-Core Research (iGCORE), Nagoya University, Furo-Cho, Chikusa-Ku, Nagoya, 464-8601, Japan
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Shin K, Kobayashi D, Kawashiri T, Ikari K, Mitsuyasu H, Murakami T, Tsutsumi K, Kanazawa Y, Kamimura H, Shimazoe T. Effect of Digital Labels on Electronic Medical Records for Reducing the Use of Benzodiazepine Receptor Agonists. YAKUGAKU ZASSHI 2019; 139:1449-1456. [DOI: 10.1248/yakushi.19-00087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Kenji Shin
- Department of Clinical Pharmacy and Pharmaceutical Care, Graduate School of Pharmaceutical Sciences, Kyushu University
- Department of Pharmacy, Iizuka Hospital
| | - Daisuke Kobayashi
- Department of Clinical Pharmacy and Pharmaceutical Care, Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Takehiro Kawashiri
- Department of Clinical Pharmacy and Pharmaceutical Care, Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | | | | | | | | | | | - Takao Shimazoe
- Department of Clinical Pharmacy and Pharmaceutical Care, Graduate School of Pharmaceutical Sciences, Kyushu University
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Honda S, Nakao T, Mitsuyasu H, Okada K, Gotoh L, Tomita M, Sanematsu H, Murayama K, Ikari K, Kuwano M, Yoshiura T, Kawasaki H, Kanba S. A pilot study exploring the association of morphological changes with 5-HTTLPR polymorphism in OCD patients. Ann Gen Psychiatry 2017; 16:2. [PMID: 28203264 PMCID: PMC5303222 DOI: 10.1186/s12991-017-0126-6] [Citation(s) in RCA: 10] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Accepted: 01/05/2017] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Clinical and pharmacological studies of obsessive-compulsive disorder (OCD) have suggested that the serotonergic systems are involved in the pathogenesis, while structural imaging studies have found some neuroanatomical abnormalities in OCD patients. In the etiopathogenesis of OCD, few studies have performed concurrent assessment of genetic and neuroanatomical variables. METHODS We carried out a two-way ANOVA between a variable number of tandem repeat polymorphisms (5-HTTLPR) in the serotonin transporter gene and gray matter (GM) volumes in 40 OCD patients and 40 healthy controls (HCs). RESULTS We found that relative to the HCs, the OCD patients showed significant decreased GM volume in the right hippocampus, and increased GM volume in the left precentral gyrus. 5-HTTLPR polymorphism in OCD patients had a statistical tendency of stronger effects on the right frontal pole than those in HCs. CONCLUSIONS Our results showed that the neuroanatomical changes of specific GM regions could be endophenotypes of 5-HTTLPR polymorphism in OCD.
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Affiliation(s)
- Shinichi Honda
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, Japan
| | - Tomohiro Nakao
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, Japan
| | - Hiroshi Mitsuyasu
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, Japan
| | - Kayo Okada
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, Japan
| | - Leo Gotoh
- Department of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Mayumi Tomita
- Kurume University Graduate School of Psychology, Fukuoka, Japan
| | - Hirokuni Sanematsu
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, Japan
| | - Keitaro Murayama
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, Japan
| | - Keisuke Ikari
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, Japan
| | - Masumi Kuwano
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, Japan
| | - Takashi Yoshiura
- Department of Radiology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hiroaki Kawasaki
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, Japan.,Department of Psychiatry, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Shigenobu Kanba
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, Japan
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Furukawa TA, Miura T, Chaimani A, Leucht S, Cipriani A, Noma H, Mitsuyasu H, Kanba S, Salanti G. Using the contribution matrix to evaluate complex study limitations in a network meta-analysis: a case study of bipolar maintenance pharmacotherapy review. BMC Res Notes 2016; 9:218. [PMID: 27074861 PMCID: PMC4831112 DOI: 10.1186/s13104-016-2019-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 03/31/2016] [Indexed: 01/07/2023] Open
Abstract
Background Limitations in the primary studies constitute one important factor to be considered in the grading of recommendations assessment, development, and evaluation (GRADE) system of rating quality of evidence. However, in the network meta-analysis (NMA), such evaluation poses a special challenge because each network estimate receives different amounts of contributions from various studies via direct as well as indirect routes and because some biases have directions whose repercussion in the network can be complicated. Findings In this report we use the NMA of maintenance pharmacotherapy of bipolar disorder (17 interventions, 33 studies) and demonstrate how to quantitatively evaluate the impact of study limitations using netweight, a STATA command for NMA. For each network estimate, the percentage of contributions from direct comparisons at high, moderate or low risk of bias were quantified, respectively. This method has proven flexible enough to accommodate complex biases with direction, such as the one due to the enrichment design seen in some trials of bipolar maintenance pharmacotherapy. Conclusions Using netweight, therefore, we can evaluate in a transparent and quantitative manner how study limitations of individual studies in the NMA impact on the quality of evidence of each network estimate, even when such limitations have clear directions.
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Affiliation(s)
- Toshi A Furukawa
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Tomofumi Miura
- Department of Neuropsychiatry Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Anna Chaimani
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, 45110, Ioannina, Greece
| | - Stefan Leucht
- Department of Psychiatry and Psychotherapy, Technische Universität München, Ismaningerstr. 22, 81675, Munich, Germany
| | - Andrea Cipriani
- Department of Psychiatry, University of Oxford, Warneford Lane, Headington, Oxford, OX3 7JX, UK
| | - Hisashi Noma
- Department of Data Science, The Institute of Statistical Mathematics, 10-3 Midori-cho, Tachikawa, Tokyo, 190-8562, Japan
| | - Hiroshi Mitsuyasu
- Department of Neuropsychiatry Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Shegenobu Kanba
- Department of Neuropsychiatry Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Georgia Salanti
- Institute of Social and Preventive Medicine (ISPM) & Berner Institut für Hausarztmedizin (BIHAM), University of Bern, Finkenhubelweg 11, 3012, Bern, Switzerland
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Miura T, Noma H, Furukawa TA, Mitsuyasu H, Tanaka S, Stockton S, Salanti G, Motomura K, Shimano-Katsuki S, Leucht S, Cipriani A, Geddes JR, Kanba S. Comparative efficacy and tolerability of pharmacological treatments in the maintenance treatment of bipolar disorder: a systematic review and network meta-analysis. Lancet Psychiatry 2014; 1:351-9. [PMID: 26360999 DOI: 10.1016/s2215-0366(14)70314-1] [Citation(s) in RCA: 217] [Impact Index Per Article: 21.7] [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: 01/07/2023]
Abstract
BACKGROUND Lithium is the established standard in the long-term treatment of bipolar disorder, but several new drugs have been assessed for this indication. We did a network meta-analysis to investigate the comparative efficacy and tolerability of available pharmacological treatment strategies for bipolar disorder. METHODS We systematically searched Embase, Medline, PreMedline, PsycINFO, and the Cochrane Central Register of Controlled Trials for randomised controlled trials published before June 28, 2013, that compared active treatments for bipolar disorder (or placebo), either as monotherapy or as add-on treatment, for at least 12 weeks. The primary outcomes were the number of participants with recurrence of any mood episode, and the number of participants who discontinued the trial because of adverse events. We assessed efficacy and tolerability of bipolar treatments using a random-effects network meta-analysis within a Bayesian framework. FINDINGS We screened 114 potentially eligible studies and identified 33 randomised controlled trials, published between 1970 and 2012, that examined 17 treatments for bipolar disorder (or placebo) in 6846 participants. Participants assigned to all assessed treatments had a significantly lower risk of any mood relapse or recurrence compared with placebo, except for those assigned to aripiprazole (risk ratio [RR] 0·62, 95% credible interval [CrI] 0·38-1·03), carbamazepine (RR 0·68, 0·44-1·06), imipramine (RR 0·95, 0·66-1·36), and paliperidone (RR 0·84, 0·56-1·24). Lamotrigine and placebo were significantly better tolerated than carbamazepine (lamotrigine, RR 5·24, 1·07-26·32; placebo, RR 3·60, 1·04-12·94), lithium (RR 3·76, 1·13-12·66; RR 2·58, 1·33-5·39), or lithium plus valproate (RR 5·95, 1·02-33·33; RR 4·09, 1·01-16·96). INTERPRETATION Although most of the drugs analysed were more efficacious than placebo and generally well tolerated, differences in the quality of evidence and the side-effect profiles should be taken into consideration by clinicians and patients. In view of the efficacy in prevention of both manic episode and depressive episode relapse or recurrence and the better quality of the supporting evidence, lithium should remain the first-line treatment when prescribing a relapse-prevention drug in patients with bipolar disorder, notwithstanding its tolerability profile. FUNDING None.
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Affiliation(s)
- Tomofumi Miura
- Department of Neuropsychiatry Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Hisashi Noma
- Department of Data Science, The Institute of Statistical Mathematics, Tokyo, Japan
| | - Toshi A Furukawa
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine and School of Public Health, Kyoto, Japan
| | - Hiroshi Mitsuyasu
- Department of Neuropsychiatry Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shiro Tanaka
- Department of Pharmacoepidemiology, Kyoto University School of Public Health, Kyoto, Japan
| | - Sarah Stockton
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Georgia Salanti
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Keisuke Motomura
- Department of Neuropsychiatry Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Satomi Shimano-Katsuki
- Department of Neuropsychiatry Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Stefan Leucht
- Department of Psychiatry and Psychotherapy, Technische Universität München, Munich, Germany
| | - Andrea Cipriani
- Department of Psychiatry, University of Oxford, Oxford, UK; Department of Public Health and Community Medicine, Section of Psychiatry and Clinical Psychology, University of Verona, Verona, Italy
| | - John R Geddes
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Shigenobu Kanba
- Department of Neuropsychiatry Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Kawahara S, Matsuda S, Fukagawa S, Mitsuyasu H, Nakahara H, Higaki H, Shimoto T, Iwamoto Y. Upsizing the femoral component increases patellofemoral contact force in total knee replacement. ACTA ACUST UNITED AC 2012; 94:56-61. [PMID: 22219248 DOI: 10.1302/0301-620x.94b1.27514] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In posterior stabilised total knee replacement (TKR) a larger femoral component is sometimes selected to manage the increased flexion gap caused by resection of the posterior cruciate ligament. However, concerns remain regarding the adverse effect of the increased anteroposterior dimensions of the femoral component on the patellofemoral (PF) joint. Meanwhile, the gender-specific femoral component has a narrower and thinner anterior flange and is expected to reduce the PF contact force. PF contact forces were measured at 90°, 120°, 130° and 140° of flexion using the NexGen Legacy Posterior Stabilized (LPS)-Flex Fixed Bearing Knee system using Standard, Upsized and Gender femoral components during TKR. Increasing the size of the femoral component significantly increased mean PF forces at 120°, 130° and 140° of flexion (p = 0.005, p < 0.001 and p < 0.001, respectively). No difference was found in contact force between the Gender and the Standard components. Among the patients who had overhang of the Standard component, mean contact forces with the Gender component were slightly lower than those of the Standard component, but no statistical difference was found at 90°, 120°, 130° or 140° of flexion (p = 0.689, 0.615, 0.253 and 0.248, respectively). Upsized femoral components would increase PF forces in deep knee flexion. Gender-specific implants would not reduce PF forces.
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Affiliation(s)
- S Kawahara
- Graduate School of Medical Sciences, Kyushu University, Department of Orthopaedic Surgery, 3-1-1, Maidashi Higashi-ku, Fukuoka City 812-8582, Japan
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Takeuchi N, Mitsuyasu H, Kikuchi K, Shimoto T, Higaki H, Iwamoto Y. The biomechanical assessment of gap formation after flexor tendon repair using partial interlocking cross-stitch peripheral sutures. J Hand Surg Eur Vol 2011; 36:584-9. [PMID: 21546417 DOI: 10.1177/1753193411406632] [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: 02/03/2023]
Abstract
The gap formation of five core plus peripheral suture techniques for flexor tendon repair was evaluated by cyclic load testing. Fifty pairs of dental roll tendon models were sutured using six-strand Pennington modified Kessler core suture with 4-0 Polypropylene. One-half or three-fourths circumferential interlocking cross-stitch, or three complete circumferential peripheral suture techniques were performed using 6-0 Polypropylene. An initial cyclic load of 10 N for 500 cycles was applied and increased by 5 N for an additional 500 cycles at each new load until rupture. The complete circumferential interlocking cross-stitch had the greatest fatigue strength. The partial circumferential cross-stitches resulted in significantly larger gap formations at both the repaired and unrepaired sides than the complete circumferential sutures, and were also associated with early rupture. The full circumference of the cut tendon must be sutured using an interlocking cross-stitch peripheral suture to improve strength and avoid gap formation.
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Affiliation(s)
- N Takeuchi
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Mitsuyasu H, Matsuda S, Fukagawa S, Okazaki K, Tashiro Y, Kawahara S, Nakahara H, Iwamoto Y. Enlarged post-operative posterior condyle tightens extension gap in total knee arthroplasty. ACTA ACUST UNITED AC 2011; 93:1210-6. [DOI: 10.1302/0301-620x.93b9.25822] [Citation(s) in RCA: 30] [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] [Indexed: 11/05/2022]
Abstract
We investigated whether the extension gap in total knee replacement (TKR) would be changed when the femoral component was inserted. The extension gap was measured with and without the femoral component in place in 80 patients with varus osteoarthritis undergoing posterior-stabilised TKR. The effect of a post-operative increase in the size of the femoral posterior condyles was also evaluated. The results showed that placement of the femoral component significantly reduced the medial and lateral extension gaps by means of 1.0 mm and 0.9 mm, respectively (p < 0.0001). The extension gap was reduced when a larger femoral component was selected relative to the thickness of the resected posterior condyle. When the post-operative posterior lateral condyle was larger than that pre-operatively, 17 of 41 knees (41%) showed a decrease in the extension gap of > 2.0 mm. When a specially made femoral trial component with a posterior condyle enlarged by 4 mm was tested, the medial and lateral extension gaps decreased further by means of 2.1 mm and 2.8 mm, respectively. If the thickness of the posterior condyle is expected to be larger than that pre-operatively, it should be recognised that the extension gap is likely to be altered. This should be taken into consideration when preparing the extension gap.
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Affiliation(s)
- H. Mitsuyasu
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S. Matsuda
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S. Fukagawa
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - K. Okazaki
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Y. Tashiro
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S. Kawahara
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - H. Nakahara
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Y. Iwamoto
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
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Takata A, Kawasaki H, Iwayama Y, Yamada K, Gotoh L, Mitsuyasu H, Miura T, Kato T, Yoshikawa T, Kanba S. Nominal association between a polymorphism in DGKH and bipolar disorder detected in a meta-analysis of East Asian case-control samples. Psychiatry Clin Neurosci 2011; 65:280-5. [PMID: 21507135 DOI: 10.1111/j.1440-1819.2011.02193.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: 12/01/2022]
Abstract
AIM Recent genome-wide association studies (GWAS) of bipolar disorder (BD) have detected new candidate genes, including DGKH, DFNB31 and SORCS2. However, the results of these GWAS were not necessarily consistent, indicating the importance of replication studies. In this study, we tested the genetic association of DGKH, DFNB31 and SORCS2 with BD. METHODS We genotyped 18 single-nucleotide polymorphisms (SNP) in DGKH, DFNB31 and SORCS2 using Japanese samples (366 cases and 370 controls). We also performed a meta-analysis of four SNP in DGKH, using the previously published allele frequency data of Han-Chinese case-control samples (1139 cases and 1138 controls). RESULTS IN the association analysis using Japanese samples, a SNP in SORCS2 (rs10937823) showed nominal genotypic association. However, we could not find any association in an additional analysis of tag SNP around rs10937823. In the meta-analysis of SNP in DGKH, rs9315897, which was not significantly associated with BD in the previous Chinese study, showed nominal association. CONCLUSION Although the association was not strong, the result of this study would support the association between DGKH and BD.
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Affiliation(s)
- Atsushi Takata
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Affiliation(s)
- A. Sakamoto
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka, Japan
| | - T. Yoshida
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka, Japan
| | - H. Mitsuyasu
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka, Japan
| | - Y. Iwamoto
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka, Japan
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11
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Takeuchi N, Mitsuyasu H, Hotokezaka S, Miura H, Higaki H, Iwamoto Y. Strength enhancement of the interlocking mechanism in cross-stitch peripheral sutures for flexor tendon repair: biomechanical comparisons by cyclic loading. J Hand Surg Eur Vol 2010; 35:46-50. [PMID: 19786410 DOI: 10.1177/1753193409345804] [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: 02/03/2023]
Abstract
The fatigue strength of three peripheral suture techniques for flexor tendon repair was compared by cyclic loading of repairs in a cotton dental roll tendon model. Thirty pairs of dental roll were sutured using only peripheral sutures with 6-0 polypropylene. An initial cyclic load of 5 N for 500 cycles was applied and increased by 5 N for an additional 500 cycles at each new load until rupture. The fatigue strength of an interlocking cross-stitch suture was 113% greater than a running suture and 36% greater than a standard cross-stitch suture. Interlocking the cross-stitch prevented shortening of the transverse portions under load and appears to be a useful technique for increasing the strength of the peripheral suture.
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Affiliation(s)
- N Takeuchi
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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12
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Mitsuyasu H, Kawasaki H, Ninomiya H, Kinukawa N, Yamanaka T, Tahira T, Stanton VP, Springett GM, Hayashi K, Tashiro N, Kanba S. Genetic structure of the dopamine receptor D4 gene (DRD4) and lack of association with schizophrenia in Japanese patients. J Psychiatr Res 2007; 41:763-75. [PMID: 16887146 DOI: 10.1016/j.jpsychires.2006.05.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2005] [Revised: 05/24/2006] [Accepted: 05/30/2006] [Indexed: 10/24/2022]
Abstract
In order to investigate the contribution of genetic variation in the human dopamine receptor D4 gene (DRD4) to the risk of developing schizophrenia, we carried out a genetic analysis of 27 polymorphisms in 216 schizophrenic patients and 243 healthy controls from the Kyushu region of Japan. Twenty-two single nucleotide polymorphisms (SNPs) and five insertion/deletion polymorphisms were analyzed in this study, including four novel SNPs and a novel mononucleotide repeat. Linkage disequilibrium (LD) and haplotype analyses reveal weak LD across the DRD4 gene. In univariate analysis female individuals with allele -521C had a higher risk for schizophrenia. However, this finding was not significant after correction for multiple hypothesis testing. No other polymorphisms or haplotypes differed between schizophrenic patients and controls. Likewise, multivariate analyses did not reveal any statistically significant associations.
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Affiliation(s)
- Hiroshi Mitsuyasu
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan
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13
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Maeda N, Kobayashi Y, Gotoh L, Mitsuyasu H, Ogomori K, Kawasaki H. P4-147 Mutation analysis of the microtubule associated protein TAU (MAPT) gene with Japanese population: patients with frontotemporal lober degeneration (FTLD). Neurobiol Aging 2004. [DOI: 10.1016/s0197-4580(04)81705-6] [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]
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14
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Mitsuyasu H, Hirata N, Sakai Y, Shibata H, Takeda Y, Ninomiya H, Kawasaki H, Tashiro N, Fukumaki Y. Association analysis of polymorphisms in the upstream region of the human dopamine D4 receptor gene (DRD4) with schizophrenia and personality traits. J Hum Genet 2001; 46:26-31. [PMID: 11289715 DOI: 10.1007/s100380170120] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The human dopamine D4 receptor (DRD4) is of major interest in molccular studies of schizophrenia and personality traits. We examined the association of schizophrenia and polymorphisms in the upstream region of the DRD4 gene (-768G>A in the negative modulator region; -521C>T, -376C >T, and -291C>T in the cell type-specific promoter region; and -616C>G between the two regions) in 208 schizophrenic patients and 210 normal controls. No significant difference in genotype and allele frequencies was observed between the two groups, indicating that these polymorphisms do not make a major contribution to the pathogenesis of schizophrenia. We also studied the association of polymorphisms in the upstream region and a 48-bp repeat polymorphism in exon III of the DRD4 gene with personality traits in 173 Japanese individuals who completed the temperament and character inventory (TCI). The -768G>A polymorphism was significantly associated with reward dependence (P= 0.044), while no significant association was observed between novelty seeking and polymorphisms in the upstream region or the exon III repeat polymorphism of the DRD4 gene.
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Affiliation(s)
- H Mitsuyasu
- Division of Disease Genes, Institute of Genetic Information, Kyushu University, Fukuoka, Japan
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15
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Abstract
The purpose of this study is to clarify the clinical features of the knee affected by multiple epiphyseal dysplasia. Thirty-one cases of multiple epiphyseal dysplasia were reviewed. Of the patients, 11 were male and 20 were female. The average age at onset of symptoms was 22.5 years. The average age at initial visit to the authors' hospital was 28.9 years. Radiographic findings showed epiphyseal abnormality of the knee in all but two (93%) cases. Irregularity, segmentation of the epiphysis, widening of the joint space, and genu valgum deformity were the dominant findings before epiphyseal closure. After epiphyseal closure, the most characteristic finding was a shallow femoral trochlear groove, which was observed in 56.5% of the cases. Other findings in adult patients included early onset osteoarthritic change, genu valgum, depression of the lateral tibial plateau, and multiple free bodies. However, there still is a possibility that multiple epiphyseal dysplasia exists, even if the patient lacks a shallow femoral trochlear groove. If genu valgum or varum, free bodies, and premature osteoarthritis are observed, one should evaluate other joints, keeping a diagnosis of multiple epiphyseal dysplasia in mind. Patients with knees that have a femoral trochlear groove of normal or near normal shape do exist, and premature osteoarthritic changes may develop in such patients.
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Affiliation(s)
- H Miura
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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16
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Abstract
We found nine novel polymorphisms in the upstream region of the human dopamine D4 receptor (DRD4) gene of Japanese by direct sequencing. These polymorphisms are -809G > A, -768G > A, -616C > G, -603T > del, -602G > del, -600G > C, -376C > T, -291C > T, and -128G > T. One known polymorphism, -521C > T, was also recognized. Six of these sites were identified as restriction fragment length polymorphisms (RFLPs).
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Affiliation(s)
- H Mitsuyasu
- Division of Disease Genes, Kyushu University, Fukuoka, Japan
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Mitsuyasu H, Yanagihara Y, Mao XQ, Gao PS, Arinobu Y, Ihara K, Takabayashi A, Hara T, Enomoto T, Sasaki S, Kawai M, Hamasaki N, Shirakawa T, Hopkin JM, Izuhara K. Cutting edge: dominant effect of Ile50Val variant of the human IL-4 receptor alpha-chain in IgE synthesis. J Immunol 1999; 162:1227-31. [PMID: 9973373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Two variants of the IL-4R alpha-chain (IL-4Ralpha) gene have been recently identified in association with different atopic disorders. To clarify the etiological relationship between the two variants, we analyzed responsiveness to IL-4 of transfectants with four kinds of IL-4Ralpha carrying either Val or Ile at 50 and either Gln or Arg at 551. The substitution of Ile for Val augmented STAT6 activation, proliferation, and transcription activity of the Iepsilon promoter by IL-4, whereas that of Arg for Gln did not change these IL-4 signals. Arg551 was not associated with atopic asthma in the Japanese population. CD23 expression and IgE synthesis by IL-4 were augmented in Ile50-bearing PBMC, compared with those bearing Val50. Taken together, substitution of Arg551 does not enhance the IL-4 signal for generation of germline epsilon transcript, whereas the substitution of Ile50 contributes to enhancement of IgE synthesis.
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Affiliation(s)
- H Mitsuyasu
- Department of Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Kyushu University, Fukuoka, Japan
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Arinobu Y, Atamas SP, Otsuka T, Niiro H, Yamaoka K, Mitsuyasu H, Niho Y, Hamasaki N, White B, Izuhara K. Antagonistic effects of an alternative splice variant of human IL-4, IL-4delta2, on IL-4 activities in human monocytes and B cells. Cell Immunol 1999; 191:161-7. [PMID: 9973539 DOI: 10.1006/cimm.1998.1431] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
IL-4 is a pleiotropic cytokine which exerts its actions on various lineages of hematopoietic and nonhematopoietic cells. This cytokine is one of the central regulators of immunity in health and disease states. An alternative splice variant, in which the second of four exons is omitted, has been recently described and designated as IL-4delta2. The variant has been previously described as a potential naturally occurring antagonist of human IL-4 (hIL-4)-stimulated T cell proliferation. In this study, we investigated the effects of recombinant human (rh) IL-4delta2 on monocytes and B cells. In monocytes, rhIL-4delta2 blocked inhibitory action of hIL-4 on LPS-induced cyclooxygenase-2 expression and subsequent prostaglandin E2 secretion. In B cells, rhIL-4delta2 was an antagonist of the hIL-4-induced synthesis of IgE and expression of CD23. Our results broaden the spectrum of hIL-4-antagonistic activities of rhIL-4delta2, thus creating the background for the potential use of rhIL-4delta2 as a therapeutic anti-hIL-4 agent.
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Affiliation(s)
- Y Arinobu
- Faculty of Medicine, Kyushu University, Fukuoka, 812-8582, Japan
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Yong C, Mitsuyasu H, Chun Z, Oshiro S, Hamasaki N, Kitajima S. Structure of the human transcription factor TFIIF revealed by limited proteolysis with trypsin. FEBS Lett 1998; 435:191-4. [PMID: 9762906 DOI: 10.1016/s0014-5793(98)01068-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this study, the human general transcription factor IIF (TFIIF), a heteromeric complex of RAP74 and RAP30 subunits, was subjected to limited proteolysis with trypsin. The central region of RAP74 was demonstrated to be highly sensitive to trypsin while both the N- and C-terminal regions contained trypsin-resistant structures. In contrast, RAP30 digestion occurred after proteolysis of RAP74. The digestion pattern of RAP74 recruited into the preinitiation complex showed no marked difference from that of IIF, while RAP30 in the complex was protected from trypsin. These results indicate that RAP74 apparently contains three structural domains, the central one of which is externally surfaced and unstructured, but RAP30 is internally wrapped by RAP74. Furthermore, the accessibility of the central region of RAP74 is unaltered in the minimal preinitiation complex, while RAP30 is involved in promoter recognition through its DNA binding activity.
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Affiliation(s)
- C Yong
- Department of Biochemical Genetics, Medical Research Institute, Tokyo Medical and Dental University, Japan
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Mitsuyasu H, Izuhara K, Mao XQ, Gao PS, Arinobu Y, Enomoto T, Kawai M, Sasaki S, Dake Y, Hamasaki N, Shirakawa T, Hopkin JM. Ile50Val variant of IL4R alpha upregulates IgE synthesis and associates with atopic asthma. Nat Genet 1998; 19:119-20. [PMID: 9620765 DOI: 10.1038/472] [Citation(s) in RCA: 285] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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