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Takacsi-Nagy Z, Ferenczi O, Major T, Akiyama H, Frohlich G, Oberna F, Revesz M, Poosz M, Polgar C. OC-0615 Results of sole postoperative interstitial, high-dose-rate brachytherapy of tongue tumours. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02637-8] [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: 10/18/2022]
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Takeuchi K, Ogawa H, Kuramitsu N, Akaike K, Goto A, Aoki H, Lassar A, Suehara Y, Hara A, Matsumoto K, Akiyama H. Colchicine protects against cartilage degeneration by inhibiting MMP13 expression via PLC-γ1 phosphorylation. Osteoarthritis Cartilage 2021; 29:1564-1574. [PMID: 34425229 PMCID: PMC8542595 DOI: 10.1016/j.joca.2021.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 07/17/2021] [Accepted: 08/10/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Low molecular weight compounds that reduce the expression of MMP13 at the mRNA level might serve as disease-modifying osteoarthritis (OA) drugs (DMOADs). The objective of this study was to identify a candidate DMOAD that targets MMP13 expression. DESIGN High-throughput screening was performed to identify compounds that suppress inflammatory cytokine-induced MMP13 expression. Ingenuity pathway analysis (IPA) using isobaric tags for relative and absolute quantification (iTRAQ)-based proteomic analysis was conducted to identify signaling pathways related to cytokines. MMP13 expression in chondrocytes was evaluated through RT-qPCR and western blotting analyses. Additionally, 10-week-old mice were subjected to destabilization of the medial meniscus (DMM) surgery to induce OA and were sacrificed 12 weeks post-surgery for pathological examination. OA was evaluated using the OARSI scoring system. RESULTS Colchicine was identified as a DMOAD candidate as it inhibited inflammatory cytokine-induced MMP13 expression in vitro, and the colchicine-administered mice with DMM presented significantly lower OARSI scores (adjusted P: 0.0242, mean difference: 1.6, 95% confidence interval (CI) of difference: 0.1651-3.035) and significantly lower synovial membrane inflammation scores (adjusted P: 0.0243, mean difference: 0.6, 95% CI of difference: 0.06158-1.138) than mice with DMM. IPA further revealed that components of the Rho signaling pathways are regulated by cytokines and colchicine. IL-1β and TNF-α activate RAC1 and SRC signals, respectively, leading to the phosphorylation of PLC-γ1 and synergistic induction of MMP13 expression. Most notably, colchicine abrogates inflammatory cytokine-induced phosphorylation of PLC-γ1, leading to the induction of MMP13 expression. CONCLUSIONS Colchicine is a potential DMOAD candidate that inhibits MMP13 expression and consequent cartilage degradation by disrupting the SRC/RAC1-phospho-PLCγ1-Ca2+ signaling pathway.
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Affiliation(s)
- K Takeuchi
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - H Ogawa
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan; Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015, Japan.
| | - N Kuramitsu
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - K Akaike
- Department of Orthopaedic Surgery, Juntendo University School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - A Goto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - H Aoki
- Department of Tissue and Organ Development, Regeneration and Advanced Medical Science, Gifu Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - A Lassar
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Ave., Boston, MA, 02115, USA
| | - Y Suehara
- Department of Orthopaedic Surgery, Juntendo University School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - A Hara
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - K Matsumoto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - H Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
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Iwatsubo T, Niimi Y, Akiyama H. Editorial: Alzheimer's Disease Research in Japan: A Short History, Current Status and Future Perspectives toward Prevention. J Prev Alzheimers Dis 2021; 8:462-464. [PMID: 34585221 DOI: 10.14283/jpad.2021.38] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A recent report from the Hisayama study, a representative regional cohort in Japan, showed that the lifetime risk of dementia in the Japanese elderly population has exceeded 50%, in which >50% of all dementia cause is comprised by Alzheimer’s disease (AD) (1). The total number of individuals with dementia in Japan is more than >5 million, and the global costs of dementia is estimated to exceed 14.5 trillion yen (equivalent to ~133 billion USD). Thus, there is an urgent and compelling need for the prevention of dementia, especially that of AD.
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Affiliation(s)
- T Iwatsubo
- Takeshi Iwatsubo, Department of Neuropathology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan. E-mail: , Phone +81-3-5841-3541, FAX +81-3-5841-3613
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Ando T, Watanabe T, Matsuo S, Samejima T, Yamagishi J, Bito T, Naruse G, Yoshida A, Minatoguchi S, Akiyama H, Nishigaki K, Minatoguchi S, Okura H. The feasibility of a newly developed local network system for cardiac rehabilitation (the CR-GNet) in disease management and physical fitness after acute coronary syndrome. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.262] [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]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Foundation. Main funding source(s): Grant-in-aid from.jpgu Prefecture
Background
The newly developed Cardiac Rehabilitation.jpgu Network (CR-GNet) has been implemented to create a regional alliance network and to provide periodic follow-up examinations to enhance the disease management in patients with cardiovascular disease. The effectiveness of a network like this support system has not yet been evaluated in Japan.
Purpose
We aimed to examine the feasibility of the CR-GNet in disease management, assisting patients in attaining physical fitness and its impact on long-term outcomes after acute coronary syndrome (ACS).
Methods
We enrolled 47 patients with ACS in the CR-GNet between February 2016 and September 2019; of these, 37, 29, and 21 patients underwent follow-up assessments for exercise capacity (peak oxygen uptake) at 3 months, 6 months, and 1 year after discharge, respectively. Major adverse cardiac events (MACE) were defined as the composite of death from cardiac causes, cardiac arrest, myocardial infarction, and rehospitalization due to unstable or progressive angina. MACE were compared with controls who were not registered in the CR-GNet.
Results
The coronary risk factors, except blood pressure, improved at 3 and 6 months, and 1 year after discharge. These risk factors in each patient significantly reduced from 2.9 at admission to 1.6, 1.4, and 1.9 at 3 months, 6 months, and 1 year after discharge (p < 0.05), respectively. Peak oxygen uptake was significantly higher at 3 months, 6 months, and 1 year after discharge to 17.5 ± 4.9 ml/kg/min, 17.9 ± 5.1 ml/kg/min, and 17.5 ± 5.5 ml/kg/min, respectively, than that at discharge (14.7 ± 3.6 ml/kg/min) (p < 0.05). During follow-up, there was no significant difference; MACE did not occur in any patients in the CR-GNet but occurred in controls.
Conclusions
The CR-GNet is a feasible option for long-term management of ACS patients. The prognostic impact of the CR-GNet needs further investigation with a larger sample size and longer follow-up.
Table1 At admission 3 months 6 months 1 year Average number 2.9 1.6* 1.4** 1.9*** † Average number of coronary risk factors for all patients (n = 21) p = 0.004, vs. at admission; **p = 0.001, vs. at admission; ***p = 0.011, vs. at admission; †p = 0.035, vs. at 6 months
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Affiliation(s)
- T Ando
- jpgu Universiry, jpgu, Japan
| | | | | | | | | | - T Bito
- jpgu Universiry, jpgu, Japan
| | | | | | | | | | | | | | - H Okura
- jpgu Universiry, jpgu, Japan
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Abstract
UNLABELLED We analyzed osteoporosis in 20 HME patients. According to the T-score of BMD, 30% and 67.5% of the patients fell in the range of osteopenia in the lumbar spine and femoral neck. Our results indicate HME patients have low bone mass. They do not have abnormal bone metabolism. INTRODUCTION There are few reports of osteoporosis in hereditary multiple exostoses (HME) patients. Therefore, the purpose of this study was to analyze osteoporosis in HME patients. METHODS This retrospective cohort study included 20 patients diagnosed with HME. Patients underwent bone mineral density (BMD) measurement of the lumbar spine (n = 20) and femoral neck (n = 40). Bone metabolic parameters, including serum osteocalcin and urinary cross-linked N-telopeptide of type 1 collagen (NTx), were analyzed in all subjects. EXT1 and EXT2 genes were sequenced using genomic DNA. We also examined the correlation between genotype and BMD Z-score and T-score. RESULTS The mean BMD values of the lumbar spine were 1.085 ± 0.116 g/cm2 (n = 11) in male and 1.108 ± 0.088 g/cm2 (n = 9) in female. The mean BMD values of the femoral neck area were 0.759 ± 0.125 g/cm2 (n = 22) in male and 0.749 ± 0.115 g/cm2 (n = 18) in female. Z-score of most HME patients show < 0, indicating that these patients tend to have low bone mass compared with the age-matched population. According to the T-score of BMD, 30% (6 of 20) and 67.5% (27 of 40) of the patients fell in the range of osteopenia in the lumbar spine and femoral neck areas, respectively. Serum osteocalcin and urinary NTx were in the normal range in most patients. There was no significant correlation between genotypes and Z-score. CONCLUSION HME patients have low bone mass, especially in the femoral neck area. They do not have abnormal bone metabolism, and there was no correlation between genotypes and Z-score.
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Affiliation(s)
- K Matsumoto
- Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, 1-1, Yanagido, Gifu, 501-1194, Japan.
| | - H Ogawa
- Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, 1-1, Yanagido, Gifu, 501-1194, Japan
| | - S Nozawa
- Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, 1-1, Yanagido, Gifu, 501-1194, Japan
| | - H Akiyama
- Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, 1-1, Yanagido, Gifu, 501-1194, Japan
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Kawashima K, Ogawa H, Komura S, Ishihara T, Yamaguchi Y, Akiyama H, Matsumoto K. Heparan sulfate deficiency leads to hypertrophic chondrocytes by increasing bone morphogenetic protein signaling. Osteoarthritis Cartilage 2020; 28:1459-1470. [PMID: 32818603 PMCID: PMC7606622 DOI: 10.1016/j.joca.2020.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 01/08/2020] [Revised: 08/03/2020] [Accepted: 08/11/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Exostosin-1 (EXT1) and EXT2 are the major genetic etiologies of multiple hereditary exostoses and are essential for heparan sulfate (HS) biosynthesis. Previous studies investigating HS in several mouse models of multiple hereditary exostoses have reported that aberrant bone morphogenetic protein (BMP) signaling promotes osteochondroma formation in Ext1-deficient mice. This study examined the mechanism underlying the effects of HS deficiency on BMP/Smad signaling in articular cartilage in a cartilage-specific Ext-/- mouse model. METHOD We generated mice with a conditional Ext1 knockout in cartilage tissue (Ext1-cKO mice) using Prg4-Cre transgenic mice. Structural cartilage alterations were histologically evaluated and phospho-Smad1/5/9 (pSmad1/5/9) expression in mouse chondrocytes was analyzed. The effect of pharmacological intervention of BMP signaling using a specific inhibitor was assessed in the articular cartilage of Ext1-cKO mice. RESULTS Hypertrophic chondrocytes were significantly more abundant (P = 0.021) and cartilage thickness was greater in Ext1-cKO mice at 3 months postnatal than in control littermates (P = 0.036 for femur; and P < 0.001 for tibia). However, osteoarthritis did not spontaneously occur before the 1-year follow-up. matrix metalloproteinase (MMP)-13 and adamalysin-like metalloproteinases with thrombospondin motifs(ADAMTS)-5 were upregulated in hypertrophic chondrocytes of transgenic mice. Immunostaining and western blotting revealed that pSmad1/5/9-positive chondrocytes were more abundant in the articular cartilage of Ext1-cKO mice than in control littermates. Furthermore, the BMP inhibitor significantly decreased the number of hypertrophic chondrocytes in Ext1-cKO mice (P = 0.007). CONCLUSIONS HS deficiency in articular chondrocytes causes chondrocyte hypertrophy, wherein upregulated BMP/Smad signaling partially contributes to this phenotype. HS might play an important role in maintaining the cartilaginous matrix by regulating BMP signaling.
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Affiliation(s)
- K. Kawashima
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, Japan
| | - H. Ogawa
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, Japan
| | - S. Komura
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, Japan
| | - T. Ishihara
- Innovative and Clinical Research Promotion Center, Gifu University Hospital, 1-1 Yanagido, Gifu, Japan
| | - Y. Yamaguchi
- Human Genetics Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - H. Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, Japan
| | - K. Matsumoto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, Japan,Address correspondence and reprint requests to: K. Matsumoto, Department of Orthopedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan. Tel.: 81-58-230-6333; Fax: 81-58-230-6334. (K. Matsumoto)
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Abstract
Objectives Using a simple classification method, we aimed to estimate the collapse rate due to osteonecrosis of the femoral head (ONFH) in order to develop treatment guidelines for joint-preserving surgeries. Methods We retrospectively analyzed 505 hips from 310 patients (141 men, 169 women; mean age 45.5 years (sd 14.9; 15 to 86)) diagnosed with ONFH and classified them using the Japanese Investigation Committee (JIC) classification. The JIC system includes four visualized types based on the location and size of osteonecrotic lesions on weightbearing surfaces (types A, B, C1, and C2) and the stage of ONFH. The collapse rate due to ONFH was calculated using Kaplan–Meier survival analysis, with radiological collapse/arthroplasty as endpoints. Results Bilateral cases accounted for 390 hips, while unilateral cases accounted for 115. According to the JIC types, 21 hips were type A, 34 were type B, 173 were type C1, and 277 were type C2. At initial diagnosis, 238/505 hips (47.0%) had already collapsed. Further, the cumulative survival rate was analyzed in 212 precollapsed hips, and the two-year and five-year collapse rates were found to be 0% and 0%, 7.9% and 7.9%, 23.2% and 36.6%, and 57.8% and 84.8% for types A, B, C1, and C2, respectively. Conclusion Type A ONFH needs no further treatment, but precollapse type C2 ONFH warrants immediate treatment with joint-preserving surgery. Considering the high collapse rate, our study results justify the importance of early diagnosis and intervention in asymptomatic patients with type C2 ONFH. Cite this article: Y. Kuroda, T. Tanaka, T. Miyagawa, T. Kawai, K. Goto, S. Tanaka, S. Matsuda, H. Akiyama. Classification of osteonecrosis of the femoral head: Who should have surgery?. Bone Joint Res 2019;8:451–458. DOI: 10.1302/2046-3758.810.BJR-2019-0022.R1.
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Affiliation(s)
- Y Kuroda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Tanaka
- Department of Orthopaedic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - T Miyagawa
- Department of Orthopaedic Surgery, Gifu University, Gifu, Japan
| | - T Kawai
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - K Goto
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - S Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - H Akiyama
- Department of Orthopaedic Surgery, Gifu University, Gifu, Japan
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Tanaka A, Hayashi T, Nakazono M, Akiyama H, Muramatsu M, Fujii R, Osakabe H, Hara K, Nagasawa S, Kumazu Y, Oshima T, Yamada T, Ogata T, Yoshikawa T. Alternation of dietary ingestion after gastrectomy: Investigated using food frequency questionnaire with 82-food items. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1571] [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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Nakazono M, Hayashi T, Akiyama H, Muramatsu M, Tanaka A, Fujii R, Osakabe H, Hara K, Shimoda Y, Nagasawa S, Kumazu Y, Yamada T, Rino Y, Masuda M, Oshima T, Ogata T, Yoshikawa T. Comparison of dietary intake alternation between total and distal gastrectomy. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1979] [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: 10/28/2022]
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Akiyama H, Takahashi I, Shimoda Y, Mukai R, Yoshihara T, Tobita S. Ir(iii) complex-based oxygen imaging of living cells and ocular fundus with a gated ICCD camera. Photochem Photobiol Sci 2018; 17:846-853. [PMID: 29808210 DOI: 10.1039/c8pp00122g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Phosphorescence lifetime imaging methods using oxygen-sensitive probes are very useful for visualizing the oxygen status of living cells and tissues with high spatial resolution. We aim to develop a useful oxygen detection technique combining a phosphorescent oxygen probe and an optimal detection method. Herein we present a biological oxygen imaging method using a microscope equipped with a gated intensified charge-coupled device (ICCD) camera as a detector and an Ir(iii) complex as a phosphorescent oxygen probe. Microscopic luminescence images of monolayer HT-29 cells (human colorectal adenocarcinoma cells) obtained using the cell-penetrating Ir(iii) complex BTPDM1 and an inverted microscope demonstrated that this method allowed visualization of the oxygen gradient produced in a monolayer of cultured cells when the monolayer is covered with a thin coverslip. Furthermore, combining the IR-emitting Ir(iii) complex DTTPH-PEG24 with a macrozoom microscope equipped with a gated ICCD camera enabled both the visualization of retinal vessels near the optic disc and the monitoring of oxygen level changes in a rabbit retina upon changing the inhaled oxygen content.
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Affiliation(s)
- H Akiyama
- Department of Ophthalmology and Medicine and Biological Science, Graduate School of Medicine, Gunma University, Showa-machi, Maebashi, Gunma 371-8512, Japan
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Izaki S, Toyoshima S, Nunomura S, Kanegae K, Kashiwakura J, Nakamura R, Nishimori N, Endo T, Akiyama H, Hayama K, Fujita H, Okayama Y, Terui T. 018 Statistically higher ability of aggregation of FcɛRI by autoantibody against FcɛRI α-chain and IgE of patients with chronic spontaneous urticaria compared with normal subjects. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.022] [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: 10/17/2022]
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Tateuchi H, Akiyama H, Goto K, So K, Kuroda Y, Ichihashi N. Sagittal alignment and mobility of the thoracolumbar spine are associated with radiographic progression of secondary hip osteoarthritis. Osteoarthritis Cartilage 2018; 26:397-404. [PMID: 29269327 DOI: 10.1016/j.joca.2017.12.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [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: 06/06/2017] [Revised: 12/04/2017] [Accepted: 12/08/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To identify predictors of radiographic progression of hip osteoarthritis (OA) over 12 months among functional hip impairments and spinal alignment and mobility. DESIGN Fifty female patients with secondary hip OA, excluding those with end-stage hip OA, participated in this prospective cohort study. Joint space width (JSW) of the hip was measured at baseline and 12 months later. With radiographic progression of hip OA over 12 months (>0.5 mm in JSW) as dependent variable, logistic regression analyses were performed to identify predictors for hip OA progression among functional impairments of the hip and spine with and without adjustment for age, body mass index (BMI), and minimum JSW at baseline. The independent variables were hip pain, Harris hip score (HHS), hip morphological parameters, hip passive range of motion (ROM) and muscle strength, and alignment and mobility of the thoracolumbar spine at baseline. RESULTS Twenty-one (42.0%) patients demonstrated radiographic progression of hip OA. Multivariable logistic regression analysis showed that larger anterior inclination of the spine in standing position (adjusted OR [95% CI], 1.37 [1.04-1.80]; P = 0.028) and less thoracolumbar spine mobility (adjusted OR [95% CI], 0.96 [0.92-0.99]; P = 0.037) at baseline were statistically significantly associated with radiographic progression of hip OA, even after adjustment for age, BMI, and minimum JSW. CONCLUSIONS The findings suggest that spinal alignment and mobility should be considered when assessing risk and designing preventive intervention for radiographic progression of secondary hip OA.
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Affiliation(s)
- H Tateuchi
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - H Akiyama
- Department of Orthopaedic Surgery, School of Medicine, Gifu University, Gifu, Japan
| | - K Goto
- Department of Orthopaedics Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - K So
- Department of Orthopaedic Surgery, Osaka Red Cross Hospital, Osaka, Japan
| | - Y Kuroda
- Department of Orthopaedics Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - N Ichihashi
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Akiyama H, Manlapaz V, Wong C, Yamazaki Y, Knapp M, Ohara S. Abstract P6-03-11: Differences in serum miRNA signatures in women with pathology-confirmed breast cancer, benign breast diseases and healthy individuals with no cancer history. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p6-03-11] [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
[INTRODUCTION] Mammography is the principal non-invasive imaging method of screening for breast cancer around the world. Mammography has been shown to be effective in reducing breast cancer deaths in randomized studies (Tabar et al., 2011 and Duffy et al., 2002). However, screening mammography can result in false positives that require subsequent interventions such as biopsy or interval repeat mammography.
Recently, circulating micro RNAs (miRNAs) have been cited as promising minimally invasive markers for breast cancer as well as for various other types of malignancies (Shimomura et al., 2016; Lawrie et al., 2008; Wang et al., 2009; Zhang et al., 2010; Mitchell et al., 2008). In this study, we have developed a new molecular diagnostic platform for the measurement of circulating (serum) miRNAs to assist with the management of women with abnormal screening mammograms.
[METHODS] Peripheral venous blood samples were collected in BD Red/Gray gel barrier tubes from patients with untreated breast cancer, patients with benign breast diseases and healthy individuals with no cancer history. The processing from blood to serum was done within six hours of collection and stored at -80°C. Total RNA was extracted from 300uL of the resulting serum using 3D-Gene®RNA extraction reagent (Toray Industries, Inc). Comprehensive miRNA expression analysis was then performed using 3D-Gene® Human miRNA Oligo Chip (Toray Industries, Inc). The average of three pre-selected internal control miRNA (miR-149-3p, miR-2861 and miR-4463) was used to normalize the signals across the different microarrays tested.
[RESULTS] RESULTS] All serum specimens used in this study were from subjects enrolled at US clinical sites (83% Caucasian, 15% African American, 2% Asian and others). One hundred fifteen (115) specimens (breast cancer: 40, healthy: 45, benign breast lesions: 30) were selected as a training cohort and used to develop comprehensive discriminants with 1–5 miRNAs using Fisher's linear discriminant analysis. The analysis identified a combination of five miRNAs that could detect breast cancer, and the resulting discriminant equation showed a sensitivity of 90.5%, specificity of 89.5% and accuracy of 89.8%. As test cohorts, (A) 381 subjects (breast cancer: 63, healthy: 160, benign breast lesions: 152), independent from subjects in the training cohort, and (B) 35 subjects who had been referred for breast biopsy were tested. The discrimination performance of the equation for each breast cancer stage (Stage 0: 1, Stage 1: 20, Stage 2: 17, Stage 3: 14, Stage 4: 11) was examined in the test cohorts. Also, information from breast cancer types as well as from benign breast lesions have been used to assess the performance of the discriminant score. The results of these analyses along with a discussion of the potential significance and plans for expanded clinical trials will be presented.
Citation Format: Akiyama H, Manlapaz V, Wong C, Yamazaki Y, Knapp M, Ohara S. Differences in serum miRNA signatures in women with pathology-confirmed breast cancer, benign breast diseases and healthy individuals with no cancer history [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P6-03-11.
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Affiliation(s)
- H Akiyama
- Toray International America, Inc., Brisbane, CA
| | - V Manlapaz
- Toray International America, Inc., Brisbane, CA
| | - C Wong
- Toray International America, Inc., Brisbane, CA
| | - Y Yamazaki
- Toray International America, Inc., Brisbane, CA
| | - M Knapp
- Toray International America, Inc., Brisbane, CA
| | - S Ohara
- Toray International America, Inc., Brisbane, CA
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Akiyama H, Araga T, Hasegawa Y. Utility of duranta®, a wireless patch-type electrocardiographic monitoring system, for detecting atrial fibrillation in patients with cryptogenic stroke. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3321] [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: 10/18/2022]
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15
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Matsuo K, Shindo A, Niwa A, Akiyama H, Akatsu H, Hashizume Y, Takahashi R, Tomimoto H. Complement in human capillary cerebral amyloid angiopathy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1747] [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: 11/30/2022]
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16
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Tada M, Koyano S, Kimura K, Kishida H, Okamoto M, Doi H, Ueda N, Sawazumi T, Chiba S, Inayama Y, Akiyama H, Kubota S, Hirama N, Hashiguchi S, Ogawa Y, Takahashi K, Kunii M, Tanaka K, Takeuchi H, Tanaka F. Histopathologic features of neuroferritinopathy - An autopsy case study. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2089] [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: 10/18/2022]
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17
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Tateuchi H, Koyama Y, Akiyama H, Goto K, So K, Kuroda Y, Ichihashi N. Daily cumulative hip moment is associated with radiographic progression of secondary hip osteoarthritis. Osteoarthritis Cartilage 2017; 25:1291-1298. [PMID: 28232145 DOI: 10.1016/j.joca.2017.02.796] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [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: 10/03/2016] [Revised: 01/16/2017] [Accepted: 02/14/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate whether higher daily cumulative hip moment at baseline is associated with subsequent radiographic progression of hip osteoarthritis (OA) over 12 months. DESIGN Fifty patients with secondary hip OA, excluding patients with end-stage hip OA, participated in this prospective cohort study. Joint space width (JSW) of the hip was measured at baseline and 12 months later. With radiographic progression of hip OA (>0.5 mm/year in JSW) as dependent variable (yes/no), univariable and multivariable logistic regression analyses were performed to assess the association between load-related parameters during gait (i.e., peak hip moment, hip moment impulse, and daily cumulative hip moment [product of hip moment impulse and mean steps/day]) and hip OA progression with and without adjustment for age, body weight, and minimum JSW. RESULTS Of the 50 patients (47.4 ± 10.7 years old), 21 (42.0%) were classified into the progression group. The higher daily cumulative hip moment in the frontal plane at baseline was statistically significantly associated with radiographic progression of hip OA (adjusted odds ratio (OR) [95% confidence interval (CI)], 1.34 [1.06-1.70]; P = 0.013). The higher daily cumulative hip moment in the sagittal plane was also approaching significance in its association with hip OA progression (adjusted OR, 1.80 [0.99-3.26]; P = 0.052). CONCLUSIONS In the female patients with secondary hip OA, higher daily cumulative hip moment, particularly in the frontal plane, was a predictor of radiographic progression of hip OA over 12 months. Reduction in daily cumulative hip moment by modification in gait and physical activity may potentially slow hip OA progression.
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Affiliation(s)
- H Tateuchi
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - Y Koyama
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - H Akiyama
- Department of Orthopaedic Surgery, School of Medicine, Gifu University, Gifu, Japan
| | - K Goto
- Department of Orthopaedics Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - K So
- Department of Orthopaedics Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y Kuroda
- Department of Orthopaedics Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - N Ichihashi
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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18
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Akiyama H. REDESIGNING COMMUNITIES FOR AN AGED SOCIETY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3978] [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: 11/13/2022] Open
Affiliation(s)
- H. Akiyama
- Institute of Gerontology, University of Tokyo, Tokyo, Japan
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19
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Sugawara I, Akiyama H. DIVERSITY OF SOCIAL NETWORK AND WELL-BEING AMONG JAPANESE ELDERLY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.5028] [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: 11/14/2022] Open
Affiliation(s)
| | - H. Akiyama
- university of Tokyo, Tokyo, Tokyo, Japan
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20
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Ogawa H, Matsumoto K, Akiyama H. The prevention of a lateral hinge fracture as a complication of a medial opening wedge high tibial osteotomy. Bone Joint J 2017; 99-B:887-893. [DOI: 10.1302/0301-620x.99b7.bjj-2016-0927.r1] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [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] [Received: 09/15/2016] [Accepted: 02/21/2017] [Indexed: 11/05/2022]
Abstract
Aims We aimed to investigate factors related to the technique of medial opening wedge high tibial osteotomy which might predispose to the development of a lateral hinge fracture. Patients and Methods A total of 71 patients with 82 osteotomies were included in the study. Their mean age was 62.9 years (37 to 80). The classification of the type of osteotomy was based on whether it extended beyond the fibular head. The level of the osteotomy was classified according to the height of its endpoint. Results At a mean follow-up of 20 months (6 to 52), a total of 15 lateral hinge fractures (18.3%) were identified. A sufficient osteotomy, in which both anterior and posterior tibial cortices were involved with extension into the lateral aspect of the plateau in relation to an anteroposterior line tangential to the medial edge of the fibular head in the CT axial plane, was seen in 48 knees (71.6%) in those without a lateral hinge fracture and in seven (46.7%) in those with a lateral hinge fracture. An osteotomy which ended above the level of the fibular head was seen in nine (13.4%) of the knees without a lateral hinge fracture and seven (46.7%) of the those with a lateral hinge fracture. There was a significant relationship between the absence of a lateral hinge fracture and both a sufficient osteotomy and one whose endpoint was at the level of the fibular head (p = 0.0451 and p = 0.0214, respectively). Conclusion A sufficient osteotomy involving both the anterior and posterior cortices, whose endpoint is at the level of the fibular head, should be performed when undertaking a medial opening wedge high tibial osteotomy if a lateral hinge fracture is to be avoided as a complication. Cite this article: Bone Joint J 2017;99-B:887–93.
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Affiliation(s)
- H. Ogawa
- Gifu University Graduate School of Medicine, Yanagido
1-1, Gifu, 501-1194, Japan
| | - K. Matsumoto
- Gifu University Graduate School of Medicine, Yanagido
1-1, Gifu, 501-1194, Japan
| | - H. Akiyama
- Gifu University Graduate School of Medicine, Yanagido
1-1, Gifu, 501-1194, Japan
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21
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Uchida K, Otobe T, Mochizuki T, Kim C, Yoshita M, Akiyama H, Pfeiffer LN, West KW, Tanaka K, Hirori H. Subcycle Optical Response Caused by a Terahertz Dressed State with Phase-Locked Wave Functions. Phys Rev Lett 2016; 117:277402. [PMID: 28084756 DOI: 10.1103/physrevlett.117.277402] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Indexed: 06/06/2023]
Abstract
The coherent interaction of light with matter imprints the phase information of the light field on the wave function of the photon-dressed electronic state. A driving electric field, together with a stable phase that is associated with the optical probe pulses, enables the role of the dressed state in the optical response to be investigated. We observed optical absorption strengths modulated on a subcycle time scale in a GaAs quantum well in the presence of a multicycle terahertz driving pulse using a near-infrared probe pulse. The measurements were in good agreement with the analytical formula that accounts for the optical susceptibilities caused by the dressed state of the excitons, which indicates that the output probe intensity was coherently reshaped by the excitonic sideband emissions.
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Affiliation(s)
- K Uchida
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
- Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - T Otobe
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0615, Japan
| | - T Mochizuki
- Fukushima Renewable Energy Institute, National Institute of Advanced Industrial Science and Technology, Koriyama, Fukushima 963-0298, Japan
| | - C Kim
- Institute for Solid State Physics, the University of Tokyo, and JST-CREST, Kashiwa, Chiba 277-8581, Japan
| | - M Yoshita
- Institute for Solid State Physics, the University of Tokyo, and JST-CREST, Kashiwa, Chiba 277-8581, Japan
| | - H Akiyama
- Institute for Solid State Physics, the University of Tokyo, and JST-CREST, Kashiwa, Chiba 277-8581, Japan
| | - L N Pfeiffer
- Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA
| | - K W West
- Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA
| | - K Tanaka
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
- Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - H Hirori
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan
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22
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Akiyama H, Nose M, Ohtsuki N, Hisaka S, Takiguchi H, Tada A, Sugimoto N, Fuchino H, Inui T, Kawano N, Hayashi S, Hishida A, Kudo T, Sugiyama K, Abe Y, Mutsuga M, Kawahara N, Yoshimatsu K. Evaluation of the safety and efficacy of Glycyrrhiza uralensis root extracts produced using artificial hydroponic and artificial hydroponic-field hybrid cultivation systems. J Nat Med 2016; 71:265-271. [PMID: 27848205 DOI: 10.1007/s11418-016-1058-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 10/24/2016] [Indexed: 11/25/2022]
Abstract
Glycyrrhiza uralensis roots used in this study were produced using novel cultivation systems, including artificial hydroponics and artificial hydroponic-field hybrid cultivation. The equivalency between G. uralensis root extracts produced by hydroponics and/or hybrid cultivation and a commercial Glycyrrhiza crude drug were evaluated for both safety and efficacy, and there were no significant differences in terms of mutagenicity on the Ames tests. The levels of cadmium and mercury in both hydroponic roots and crude drugs were less than the limit of quantitation. Arsenic levels were lower in all hydroponic roots than in the crude drug, whereas mean lead levels in the crude drug were not significantly different from those in the hydroponically cultivated G. uralensis roots. Both hydroponic and hybrid-cultivated root extracts showed antiallergic activities against contact hypersensitivity that were similar to those of the crude drug extracts. These study results suggest that hydroponic and hybrid-cultivated roots are equivalent in safety and efficacy to those of commercial crude drugs. Further studies are necessary before the roots are applicable as replacements for the currently available commercial crude drugs produced from wild plant resources.
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Affiliation(s)
- H Akiyama
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan.
| | - M Nose
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku, Nagoya, 468-8503, Japan
| | - N Ohtsuki
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - S Hisaka
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku, Nagoya, 468-8503, Japan
| | - H Takiguchi
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - A Tada
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - N Sugimoto
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - H Fuchino
- Tsukuba Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 303-0843, Japan
| | - T Inui
- Tsukuba Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 303-0843, Japan
| | - N Kawano
- Tsukuba Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 303-0843, Japan
| | - S Hayashi
- Hokkaido Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 108-4 Aza Ohashi, Nayoro, Hokkaido, 096-0065, Japan
| | - A Hishida
- Hokkaido Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 108-4 Aza Ohashi, Nayoro, Hokkaido, 096-0065, Japan
| | - T Kudo
- Kajima Technical Research Institute, Kajima Corporation, 19-1, Tobitakyu 2-chome, Chofushi, Tokyo, 182-0036, Japan
| | - K Sugiyama
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Y Abe
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - M Mutsuga
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - N Kawahara
- Tsukuba Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 303-0843, Japan
| | - K Yoshimatsu
- Tsukuba Division, Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 303-0843, Japan
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23
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Kimura J, Kunisaki C, Makino H, Oshima T, Ota M, Oba M, Takagawa R, Kosaka T, Ono HA, Akiyama H, Endo I. Evaluation of the Glasgow Prognostic Score in patients receiving chemoradiotherapy for stage III and IV esophageal cancer. Dis Esophagus 2016; 29:1071-1080. [PMID: 26471766 DOI: 10.1111/dote.12420] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
High Glasgow Prognostic scores (GPSs) have been associated with poor outcomes in various tumors, but the values of GPS and modified GPS (mGPS) in patients with advanced esophageal cancer receiving chemoradiotherapy (CRT) has not yet been reported. We have evaluated these with respect to predicting responsiveness to CRT and long-term survival. Between January 2002 and December 2011, tumor responses in 142 esophageal cancer patients (131 men and 11 women) with stage III (A, B and C) and IV receiving CRT were assessed. We assessed the value of the GPS as a predictor of a response to definitive CRT and also as a prognostic indicator in patients with esophageal cancer receiving CRT. We found that independent predictors of CRT responsiveness were Eastern Cooperative Oncology Group (ECOG) performance status, GPS and cTNM stage. Independent prognostic factors were ECOG performance status and GPS for progression-free survival and ECOG performance status, GPS and cTNM stage IV for disease-specific survival. GPS may be a novel predictor of CRT responsiveness and a prognostic indicator for progression-free and disease-specific survival in patients with advanced esophageal cancer. However, a multicenter study as same regime with large number of patients will be needed to confirm these outcomes.
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Affiliation(s)
- J Kimura
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - C Kunisaki
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - H Makino
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - T Oshima
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - M Ota
- Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - M Oba
- Department of Biostatistics and Epidemiology, Graduate School of Medicine, Yokohama-city University, Yokohama, Japan
| | - R Takagawa
- Department of Gastroenterological Surgery, Graduate School of Medicine, Yokohama-city University, Yokohama, Japan
| | - T Kosaka
- Department of Gastroenterological Surgery, Graduate School of Medicine, Yokohama-city University, Yokohama, Japan
| | - H A Ono
- Department of Gastroenterological Surgery, Graduate School of Medicine, Yokohama-city University, Yokohama, Japan
| | - H Akiyama
- Department of Gastroenterological Surgery, Graduate School of Medicine, Yokohama-city University, Yokohama, Japan
| | - I Endo
- Department of Gastroenterological Surgery, Graduate School of Medicine, Yokohama-city University, Yokohama, Japan
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24
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Terada H, Kamata N, Yokoyama Y, Ohashp K, Akiyama H, Sakamaki H. T1-Hypersignal Foci in Cerebral Toxoplasmosis after Stem Cell Transplantation. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/197140090101400610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We present here the unique image of toxoplasma encephalitis in a transplant recipient, characterized by the finding of T1-hypersignal foci. It is emphasized that cerebral toxoplasmosis after stem cell transplantation may show a high signal on T1-weighted images even without any hemorrhagic or calcified lesions.
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Affiliation(s)
| | | | | | | | - H. Akiyama
- Department of Radiology and Hematology, Tokyo Metropolitan Komagome Hospital, Tokyo; Japan
| | - H. Sakamaki
- Department of Radiology and Hematology, Tokyo Metropolitan Komagome Hospital, Tokyo; Japan
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25
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Kono N, Ohashi K, Okuyama Y, Mori S, Hiruma K, Akiyama H, Fukui T, Osumi K, Sakamaki H. Treatment of Relapsing Ph+ Acute Lymphoblastic Leukemia with Donor Leukocyte Infusion Followed by Quantitative Monitoring of Residual Disease. ACTA ACUST UNITED AC 2016; 6:261-5. [PMID: 27414845 DOI: 10.1080/10245332.2001.11746579] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The case of a 34-year-old man with relapsing Ph+ acute lymphoblastic leukemia (ALL), which occurred five months after allogeneic bone marrow transplantation, is described. He was originally treated with aggressive chemotherapy, which put him in hematological remission, and he subsequently received donor leukocyte infusion (DLI) form the original donor. To assess the efficacy of this adoptive immunotherapy, we monitored minor-BCR/ABL (m-BCR/ABL) mRNA levels using the recently established real-time quantitative RT-PCR (RQ-PCR) assay. The results were compared with those obtained using conventional qualitative RT-PCR assays run in parallel. RQ-PCR, but not RT-PCR-based, minimum residual disease (MRD) detection showed a good correlation with the rapid changes documented during the post-DLI clinical course. Currently, six months after DLI, the patient continues to be in remission, which is consistent with the undetectable levels of m-BCR/ABL mRNA in the leukemic clone using RQ-PCR found in this study. Thus, monitoring of m-bcr/abl transcripts using RQ-PCR provides more useful information on a clinical assessment of MRD.
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Affiliation(s)
- N Kono
- a Hematology Division , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - K Ohashi
- a Hematology Division , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - Y Okuyama
- b Blood Transfusion Service , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - S Mori
- a Hematology Division , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - K Hiruma
- b Blood Transfusion Service , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - H Akiyama
- a Hematology Division , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - T Fukui
- c Otsuka Assay Laboratories , Otsuka Pharmaceutical Company Limited , Tokyo , Japan
| | - K Osumi
- c Otsuka Assay Laboratories , Otsuka Pharmaceutical Company Limited , Tokyo , Japan
| | - H Sakamaki
- a Hematology Division , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
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26
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Kobayashi Y, Akiyama H, Huge J, Kubota H, Chikazawa S, Satoh T, Miyake T, Uhara H, Okuyama R, Nakagawara R, Aihara M, Hamada-Sato N. Fish collagen is an important panallergen in the Japanese population. Allergy 2016; 71:720-3. [PMID: 26785247 DOI: 10.1111/all.12836] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [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: 01/04/2016] [Indexed: 12/01/2022]
Abstract
Collagen was identified as a fish allergen in early 2000s. Although its allergenic potential has been suggested to be low, risks associated with collagen as a fish allergen have not been evaluated to a greater extent. In this study, we aimed to clarify the importance of collagen as a fish allergen. Our results showed that 50% of Japanese patients with fish allergy had immunoglobulin E (IgE) against mackerel collagen, whereas 44% had IgE against mackerel parvalbumin. IgE inhibition assay revealed high cross-reactivity of mackerel collagen to 22 fish species (inhibition rates: 87-98%). Furthermore, a recently developed allergy test demonstrated that collagen triggered IgE cross-linking on mast cells. These data indicate that fish collagen is an important and very common panallergen in fish consumed in Japan. The high rate of individuals' collagen allergy may be attributable to the traditional Japanese custom of raw fish consumption.
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Affiliation(s)
- Y. Kobayashi
- Department of Marine Biosciences; Tokyo University of Marine Science and Technology; Minato-ku Tokyo Japan
- Course of Safety Management in Food Supply Chain; Tokyo University of Marine Science and Technology; Minato-ku Tokyo Japan
| | - H. Akiyama
- Chemistry Division; Kanagawa Prefectural Institute of Public Health; Chigasaki-shi Kanagawa Japan
| | - J. Huge
- Course of Safety Management in Food Supply Chain; Tokyo University of Marine Science and Technology; Minato-ku Tokyo Japan
| | - H. Kubota
- Course of Safety Management in Food Supply Chain; Tokyo University of Marine Science and Technology; Minato-ku Tokyo Japan
| | - S. Chikazawa
- Department of Dermatology; National Defense Medical College; Tokorozawa-shi Saitama Japan
| | - T. Satoh
- Department of Dermatology; National Defense Medical College; Tokorozawa-shi Saitama Japan
| | - T. Miyake
- Department of Dermatology; Shinshu University Hospital; Matsumoto-shi Nagano Japan
| | - H. Uhara
- Department of Dermatology; Shinshu University Hospital; Matsumoto-shi Nagano Japan
| | - R. Okuyama
- Department of Dermatology; Shinshu University Hospital; Matsumoto-shi Nagano Japan
| | - R. Nakagawara
- Department of Dermatology; Yokohama City University School of Medicine; Yokohama-shi Kanagawa Japan
| | - M. Aihara
- Department of Dermatology; Yokohama City University School of Medicine; Yokohama-shi Kanagawa Japan
| | - N. Hamada-Sato
- Department of Marine Biosciences; Tokyo University of Marine Science and Technology; Minato-ku Tokyo Japan
- Course of Safety Management in Food Supply Chain; Tokyo University of Marine Science and Technology; Minato-ku Tokyo Japan
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27
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Yoshida K, Yamazaki H, Takenaka T, Kotsuma T, Masui K, Akiyama H, Uesugi Y, Shimbo T, Yoshikawa N, Yoshioka H, Tanaka E, Narumi Y. PO-0964: High-dose-rate interstitial brachytherapy as monotherapy for locally limited mobile tongue cancer. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32214-9] [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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28
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Iwata T, Ito H, Furu M, Hashimoto M, Fujii T, Ishikawa M, Azukizawa M, Hamamoto Y, Mimori T, Akiyama H, Matsuda S. Systemic effects of surgical intervention on disease activity, daily function, and medication in patients with rheumatoid arthritis. Scand J Rheumatol 2016; 45:356-62. [PMID: 26853518 DOI: 10.3109/03009742.2015.1124918] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Although tight control of rheumatoid arthritis (RA) has been achieved through the development of effective medication, surgical intervention is still required for a certain subpopulation of patients. To examine the systemic effects of orthopaedic surgery, we evaluated improvements in disease activity, daily function, and medication after surgery. METHOD A prospective cohort study was conducted in 196 cases of elective orthopaedic surgery in 150 patients with RA from January 2011 to March 2014 in our institution. The 28-joint count Disease Activity Score based on erythrocyte sedimentation rate (DAS28-ESR) and modified Health Assessment Questionnaire (mHAQ) scores just before surgery and at 6 and 12 months after surgery were examined prospectively. Concomitant medications were also investigated. RESULTS Significant improvement was seen in the DAS28-ESR and mHAQ scores for replacement surgery in both the upper and lower extremities, and for arthroplasty/arthrodesis in the upper extremities at the 12-month follow-up. Partial mHAQ scores for the lower extremities were significantly reduced in lower replacement surgery, and partial mHAQ scores for the upper extremities were significantly reduced in upper arthroplasty/arthrodesis surgery. Although the use of conventional synthetic disease-modifying anti-rheumatic drugs (csDMARDs) did not decrease after surgery, the dose of prednisolone (PSL) decreased significantly at 12 months after surgery, especially in the well-controlled group and in surgical procedures in the lower extremities. CONCLUSIONS Elective orthopaedic surgery improves both systemic disease activity and general functional impairment. Orthopaedic surgery is effective in reducing the amount of medication required postoperatively.
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Affiliation(s)
- T Iwata
- a Department of Orthopaedic Surgery , Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - H Ito
- a Department of Orthopaedic Surgery , Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - M Furu
- a Department of Orthopaedic Surgery , Kyoto University Graduate School of Medicine , Kyoto , Japan.,b Department of Control for Rheumatic Diseases , Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - M Hashimoto
- b Department of Control for Rheumatic Diseases , Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - T Fujii
- b Department of Control for Rheumatic Diseases , Kyoto University Graduate School of Medicine , Kyoto , Japan.,c Department of Rheumatology and Clinical Immunology , Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - M Ishikawa
- a Department of Orthopaedic Surgery , Kyoto University Graduate School of Medicine , Kyoto , Japan.,b Department of Control for Rheumatic Diseases , Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - M Azukizawa
- a Department of Orthopaedic Surgery , Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - Y Hamamoto
- a Department of Orthopaedic Surgery , Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - T Mimori
- c Department of Rheumatology and Clinical Immunology , Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - H Akiyama
- d Department of Orthopaedic Surgery , Gifu University Graduate School of Medicine , Gifu , Japan
| | - S Matsuda
- a Department of Orthopaedic Surgery , Kyoto University Graduate School of Medicine , Kyoto , Japan
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Iwata T, Ito H, Furu M, Hashimoto M, Fujii T, Ishikawa M, Yamakawa N, Terao C, Azukizawa M, Hamamoto Y, Mimori T, Akiyama H, Matsuda S. Periarticular osteoporosis of the forearm correlated with joint destruction and functional impairment in patients with rheumatoid arthritis. Osteoporos Int 2016; 27:691-701. [PMID: 26243360 DOI: 10.1007/s00198-015-3256-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 07/20/2015] [Indexed: 01/01/2023]
Abstract
UNLABELLED The relationship between periarticular osteoporosis in the distal forearm and joint destruction or functional impairment in patients with rheumatoid arthritis (RA) is not sufficiently elucidated. From a single institutional cohort study, we found a strong correlation between periarticular forearm bone mineral density (BMD) and joint destruction or functional impairment. INTRODUCTION This study was conducted to investigate (1) the difference between various periarticular regions of interest (ROIs) of BMD of the forearm, (2) the correlation between periarticular forearm BMD and joint destruction and physical function, (3) the independent variables for predicting BMD of the forearm, and (4) the forearm BMD of different ROIs in the early stage of RA. METHODS We conducted a cross-sectional study in an RA cohort. Measurements included BMD of the distal forearm, joint destruction of the hands assessed by modified total Sharp score (mTSS), functional impairment assessed by a health assessment questionnaire (HAQ), and other clinical data. Variables affecting the forearm BMD values were analyzed by correlation and stepwise regression analyses. RESULTS Of the 405 patients enrolled in the present study, 370 (average age; 62.9 years) were identified as having definite RA with a complete set of data. BMD in the distal end of the forearm (BMDud) was significantly reduced compared with that in the distal third of the forearm (BMD1/3). In a stepwise regression analysis, the mTSS in BMD1/3 was an independent predicting variable, while age and partial HAQ scores associated with the upper extremity were common independent variables in BMDud and BMD1/3. BMDud was significantly less than BMD1/3, even in patients with a short duration of the disease. BMD1/3 was significantly less in non-remission group compared with that in remission group in patients with a short duration of the disease. CONCLUSION Periarticular BMD in the distal forearm is closely correlated with joint destruction and functional impairment in RA. Periarticular BMD in the distal forearm may be already reduced at the clinical manifestation of the disease.
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Affiliation(s)
- T Iwata
- Department of Orthopedic Surgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
| | - H Ito
- Department of Orthopedic Surgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan.
| | - M Furu
- Department of Orthopedic Surgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
- Department of the Control for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M Hashimoto
- Department of the Control for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Fujii
- Department of the Control for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M Ishikawa
- Department of Orthopedic Surgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
- Department of the Control for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - N Yamakawa
- Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - C Terao
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M Azukizawa
- Department of Orthopedic Surgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
| | - Y Hamamoto
- Department of Orthopedic Surgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
| | - T Mimori
- Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Gifu, Japan
| | - S Matsuda
- Department of Orthopedic Surgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
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Akiyama H, Hayashi K, Ikai A. Glandular odontogenic cyst: a case report and immunohistochemical study. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.006] [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: 11/30/2022]
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Murakawa T, Sato H, Okumura S, Nakajima J, Horio H, Ozeki Y, Asamura H, Ikeda N, Hata Y, Matsuguma H, Yoshino I, Chida M, Nakayama M, Iizasa T, Okumura M, Shiono S, Kato R, Iida T, Matsutani N, Sakao Y, Funai K, Suda K, Akiyama H, Sugiyama S, Kanauchi N, Shiraishi Y, Kawamura M. F-143THORACOSCOPIC SURGERY VERSUS OPEN SURGERY FOR LUNG METASTASES OF COLORECTAL CANCER: A MULTI-INSTITUTIONAL RETROSPECTIVE ANALYSIS USING PROPENSITY SCORE ADJUSTMENT. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.143] [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: 11/14/2022] Open
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Iwata T, Ito H, Furu M, Hashimoto M, Fujii T, Ishikawa M, Yamakawa N, Terao C, Azukizawa M, Hamamoto Y, Mimori T, Akiyama H, Matsuda S. SAT0301 Periarticular Osteoporosis of the Forearm Correlated with Joint Destruction and Functional Impairment in Patients With Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2539] [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: 11/04/2022]
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Nagao T, Oshikawa G, Ishida S, Akiyama H, Umezawa Y, Nogami A, Kurosu T, Miura O. A novel MYD88 mutation, L265RPP, in Waldenström macroglobulinemia activates the NF-κB pathway to upregulate Bcl-xL expression and enhances cell survival. Blood Cancer J 2015; 5:e314. [PMID: 25978434 PMCID: PMC4476015 DOI: 10.1038/bcj.2015.36] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- T Nagao
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - G Oshikawa
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Ishida
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - H Akiyama
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Umezawa
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - A Nogami
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Kurosu
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - O Miura
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Negoro T, Shimizu S, Narushima M, Banham AH, Wakabayashi H, Takayanagi R, Hagiwara T, Roncador G, Osabe T, Yanai T, Kin M, Ikeda K, Endo A, Akiyama H, Nakano Y. Elevated receptor for activated C kinase 1 expression is involved in intracellular Ca2+ influx and potentially associated with compromised regulatory T cell function in patients with asthma. Clin Exp Allergy 2015; 44:1154-69. [PMID: 25048599 DOI: 10.1111/cea.12375] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 05/09/2014] [Accepted: 07/02/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND Regulatory T cells (T(regs)) are activated during anergy in response to T cell receptor (TCR) activation and functional immune suppression. Anergy of paediatric T(regs) is partially dependent on intracellular calcium mobility; following TCR activation, T(regs) do not exhibit increased intracellular Ca(2+) concentration ([Ca(2+) ](i)). OBJECTIVE We determined whether [Ca(2+) ](i) in adult T(regs) defined their anergy, if intracellular Ca(2+) movement was linked to regulatory functions, whether [Ca(2+)](i) was indicative of asthma pathology, and the potential molecular mechanism responsible for Ca(2+) movement in T(regs). METHODS T(regs) were purified by the magnetic bead method, and their regulatory functions were assessed by monitoring carboxyfluorescein succinimidyl ester-labelled responder T cell proliferation. The Ca(2+) response of Fura-2-labelled cells was measured using a video image analysis system. To analyse the functions of T(regs) at the molecular level, we generated Jurkat Tet-On(®) clones with doxycycline (Dox)-induced forkhead box P3 (FOXP3) protein expression. RESULTS CD4(+) CD25(+) CD127(-/low) T(regs) from participants without asthma did not elicit Ca(2+) influx in response to TCR activation, exhibited little proliferation and suppressed proliferation of CD4(+) CD25(-) T cells. In contrast, under similar conditions, T(regs) from patients with asthma exhibited increased [Ca(2+)](i) and robust proliferation with partial loss of regulatory functions. FOXP3 protein levels in Tet-On(®) clones were high after both 2- and 5-day Dox treatment; however, 5-day cells were comparable with T(regs) from patients with asthma, whereas 2-day cells were similar to T(regs) from participants without asthma. Increasing [Ca(2+)](i) induced a high level of receptor for activated C kinase 1 (RACK1) expression in 5-day cells. CONCLUSIONS AND CLINICAL RELEVANCE We confirmed that T(regs) in patients with asthma are functionally impaired and that the abnormal regulatory functions of these cells can be analysed by [Ca(2+)](i) following TCR engagement. Furthermore, the impaired functioning of T(regs) evident in patients with asthma may be due to a high level of RACK1.
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Affiliation(s)
- T Negoro
- Department of Pharmacogenomics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
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Tsukagoshi R, Tateuchi H, Fukumoto Y, Ibuki S, Akiyama H, So K, Kuroda Y, Okumura H, Ichihashi N. Functional performance of female patients more than 6 months after total hip arthroplasty shows greater improvement with weight-bearing exercise than with non-weight-bearing exercise. Randomized controlled trial. Eur J Phys Rehabil Med 2014; 50:665-675. [PMID: 25051209] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Impaired functional performance and decreased muscle strength and muscle atrophy generally persist for a long period after total hip arthroplasty (THA). AIM To investigate the effects of weight-bearing (WB) and non-weight-bearing (NWB) exercises on functional performance, Harris hip score (HHS), muscle strength and muscle thickness in women after THA. DESIGN A randomised, controlled trial. SETTING Community. POPULATION Sixty-five women who had undergone unilateral or bilateral THA at least 6 months before enrolment in the study. METHODS Participants were randomly allocated to the following groups: WB (n = 22), NWB (n = 21) and control (n = 22) groups. Participants in the WB and NWB groups performed daily home exercise programs for 8 weeks. Functional performance (timed up and go, sit-to-stand, stair climbing, walking speed and 3-min walk test), HHS, isometric muscle strength of the hip and knee muscle and gluteus and quadriceps muscle thickness were measured at baseline and after 8 weeks. RESULTS An intention-to-treat analysis revealed that both the intervention groups exhibited significant improvements in almost all functional performance measures compared with the control group. Furthermore, the WB group showed significantly greater pre-post changes in the sit-to-stand and 3-min walk test compared with the NWB group. In terms of HHS, only the WB group showed significantly greater improvement compared with the control group. Relative to the control group, improvements in all isometric strength measures were observed in both the intervention groups. Significant improvement in quadriceps muscle thickness was observed in the WB group compared with the control group. However, no significant difference was observed among the three groups in pre-post changes in gluteus muscle thickness. CONCLUSION WB and NWB home exercise programs were both effective for improving functional performance and muscle strength in women after THA. However, the WB exercise was more effective than the NWB exercise for improving sit-to-stand ability and walking endurance. CLINICAL REHABILITATION IMPACT In this study, we demonstrated that the WB exercise was more effective than the NWB exercise for improving functional performance in patients after THA.
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Affiliation(s)
- R Tsukagoshi
- Departmenty of Rehabilitation Science, Hyogo University of Health Sciences, Kobe, Japan -
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Nankaku M, Akiyama H, Kakinoki R, Nishikawa T, Tanaka Y, Matsuda S. Factors associated with ambulatory status 6 months after total hip arthroplasty. Physiotherapy 2014; 100:263-7. [DOI: 10.1016/j.physio.2013.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Accepted: 06/17/2013] [Indexed: 10/26/2022]
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Iijima H, Aoyama T, Ito A, Tajino J, Nagai M, Zhang X, Yamaguchi S, Akiyama H, Kuroki H. Destabilization of the medial meniscus leads to subchondral bone defects and site-specific cartilage degeneration in an experimental rat model. Osteoarthritis Cartilage 2014; 22:1036-43. [PMID: 24857975 DOI: 10.1016/j.joca.2014.05.009] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 04/12/2014] [Accepted: 05/07/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE This study aimed to investigate subchondral bone changes using micro-computed tomography (micro-CT) and regional differences in articular cartilage degeneration, focusing on changes of cartilage covered by menisci, in the early phase using a destabilization of the medial meniscus (DMM) model. METHOD The DMM model was created as an experimental rat osteoarthritis (OA) model (12 weeks old; n = 24). At 1, 2, and 4 weeks after surgery, the rats were sacrificed, and knee joints were scanned using a Micro-CT system. Histological sections of the medial tibial plateau, which was divided into inner, middle, and outer regions, were prepared and scored using the modified OARSI scoring system. The cartilage thickness was also calculated, and matrix metalloproteinase 13 (MMP13), Col2-3/4c, and vascular endothelial growth factor (VEGF) expression was assessed immunohistochemically. RESULTS Subchondral bone defects were observed in the middle region, in which the cartilage thickness decreased over time after surgery, and these defects were filled with MMP13- and VEGF-expressing fibrous tissue. The OARSI score increased over time in the middle region, and the score was significantly higher in the middle region than in the inner and outer regions at 1, 2, and 4 weeks after surgery. Col2-3/4c and MMP13 expression was observed primarily in the meniscus-covered outer region, in which the cartilage thickness increased over time. CONCLUSION Loss of meniscal function caused cartilage degeneration and subchondral bone defects in the early phase site-specifically in the middle region. Furthermore, our results might indicate cartilage covered by menisci is easily degraded resulting in osmotic swelling of the cartilage in early OA.
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Affiliation(s)
- H Iijima
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Japan.
| | - T Aoyama
- Department of Development and Rehabilitation of Motor Function, Human Health Sciences, Graduate School of Medicine, Kyoto University, Japan.
| | - A Ito
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Japan.
| | - J Tajino
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Japan.
| | - M Nagai
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Japan.
| | - X Zhang
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Japan.
| | - S Yamaguchi
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Japan.
| | - H Akiyama
- Department of Orthopaedic Surgery, Graduate School of Medicine, Gifu University, Japan.
| | - H Kuroki
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Japan.
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Ishimaru D, Sugiura N, Akiyama H, Watanabe H, Matsumoto K. Alterations in the chondroitin sulfate chain in human osteoarthritic cartilage of the knee. Osteoarthritis Cartilage 2014; 22:250-8. [PMID: 24280246 DOI: 10.1016/j.joca.2013.11.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [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: 07/29/2013] [Revised: 11/05/2013] [Accepted: 11/15/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To determine whether the structure of chondroitin sulfate (CS) in cartilage is reflected by the degree of cartilage degeneration in patients with osteoarthritis (OA) of the knee and to determine how CS biosynthesis affects cartilage degeneration. DESIGN Two osteoarthritic cartilage samples were obtained from medial femoral condyle (MFC) and lateral femoral condyle (LFC) of 24 knees with end-stage OA. The samples were assigned to two groups as follows: lesion and remote cartilage were adjacent to and remote from the osteoarthritic cartilage, respectively. Histological grade was determined according to the Mankin score. The CS concentration and chain length were determined using high-performance liquid chromatography (HPLC) and gel filtration chromatography, respectively. Expression of the gene encoding CS glycosyltransferase was evaluated using a real-time quantitative polymerase chain reaction (qPCR) assay. These results were compared between lesion and remote cartilage. RESULTS The Mankin score indicated that lesion cartilage was more degraded compared with remote cartilage. Although the CS levels varied among individuals, the mean CS concentration and chain length were significantly lower and shorter in lesion cartilage than in remote cartilage, respectively (concentration: 12.04 vs 14.84 μg/mg wet weight, P = 0.021; chain length: 5.36 vs 6.19 kDa, P = 0.026). Three genes encoding CS glycosyltransferases (CHPF, CSGALNACT1, CSGALNACT2) were expressed at lower levels in lesion cartilage. CONCLUSIONS In the osteoarthritic knee, the CS concentration and chain length were reduced closer to the more degraded cartilage with decreasing CS glycosyltransferase gene expression. Inhibition of CS glycosyltransferase gene expression may reduce CS chain length, which may contribute to OA progression.
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Affiliation(s)
- D Ishimaru
- Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, Gifu, Japan.
| | - N Sugiura
- Institute for Molecular Science of Medicine, Aichi Medical University, Nagakute, Aichi, Japan.
| | - H Akiyama
- Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, Gifu, Japan.
| | - H Watanabe
- Institute for Molecular Science of Medicine, Aichi Medical University, Nagakute, Aichi, Japan.
| | - K Matsumoto
- Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, Gifu, Japan.
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Shimizu Y, Kishimura H, Kanno G, Nakamura A, Adachi R, Akiyama H, Watanabe K, Hara A, Ebisawa M, Saeki H. Molecular and immunological characterization of '-component (Onc k 5), a major IgE-binding protein in chum salmon roe. Int Immunol 2013; 26:139-47. [DOI: 10.1093/intimm/dxt051] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Akiyama H, Hasegawa Y, Koga M, Yamagami H, Okuda S, Okada Y, Kimura K, Shiokawa Y, Nakagawara J, Furui E, Kario K, Toyoda K. Correlation between anti-thrombotic drugs and hematoma expansion in acute intracerebral hemorrhage under strict blood pressure-lowering management: SAMURAI-ICH study. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.975] [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: 11/25/2022]
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Shinokita K, Hirori H, Tanaka K, Mochizuki T, Kim C, Akiyama H, Pfeiffer LN, West KW. Terahertz-induced optical emission of photoexcited undoped GaAs quantum wells. Phys Rev Lett 2013; 111:067401. [PMID: 23971609 DOI: 10.1103/physrevlett.111.067401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Indexed: 06/02/2023]
Abstract
Intense terahertz (THz) pulse induces photoluminescence (PL) flash from undoped high-quality GaAs/AlGaAs quantum wells under continuous wave laser excitation. The number of excitons increases 10,000-fold from that of the steady state under only laser excitation. The THz electric field dependence and the relaxation dynamics of the PL flash intensity suggest that the strong electric field of the THz pulse ionizes impurity states during the 1 ps period of the THz pulse and release carriers from a giant reservoir containing impurity states in the AlGaAs layers.
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Affiliation(s)
- K Shinokita
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
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Murakami S, Chishima S, Uemoto H, Sakamoto E, Sato T, Kurabe N, Kawasaki Y, Shibata T, Akiyama H, Tashiro F. The male-specific factor Sry harbors an oncogenic function. Oncogene 2013; 33:2978-86. [PMID: 23893245 DOI: 10.1038/onc.2013.262] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 05/23/2013] [Accepted: 05/28/2013] [Indexed: 12/19/2022]
Abstract
Sgf29, a component of the SPT-ADA-GCN5 acetyltransferase (SAGA) complex, binds H3K4me2/3 marks and leads to histone H3 acetylation. Previously, we found that downregulation of Sgf29 suppresses c-Myc-mediated malignant transformation. Nonetheless, the upstream regulator of the Sgf29 gene is not yet known. Here, we report that Sry (sex-determining region Y), an HMG (high-mobility group) domain containing transcription factor, directly upregulates Sgf29 gene expression. Sry expression was deregulated in two out of the four tested male rodent hepatocellular carcinoma (rHCC) cell lines. Luciferase reporter and chromatin immunoprecipitation assays indicated that Sry could bind HMG-boxes in the proximal promoter region of the Sgf29 gene. Knockdown of Sry robustly lowered anchorage-independent growth, invasiveness and tumorigenicity of rHCC cells, whereas ectopic expression of Sry conferred more malignant properties. Thus, these data show that Sry is involved in male-specific malignant conversion of rHCCs via Sgf29 upregulation.
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Affiliation(s)
- S Murakami
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - S Chishima
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - H Uemoto
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - E Sakamoto
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - T Sato
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - N Kurabe
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Y Kawasaki
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - T Shibata
- Division of Cancer Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - H Akiyama
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - F Tashiro
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
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Kurosawa S, Yakushijin K, Yamaguchi T, Atsuta Y, Nagamura-Inoue T, Akiyama H, Taniguchi S, Miyamura K, Takahashi S, Eto T, Ogawa H, Kurokawa M, Tanaka J, Kawa K, Kato K, Suzuki R, Morishima Y, Sakamaki H, Fukuda T. Changes in incidence and causes of non-relapse mortality after allogeneic hematopoietic cell transplantation in patients with acute leukemia/myelodysplastic syndrome: an analysis of the Japan Transplant Outcome Registry. Bone Marrow Transplant 2012; 48:529-36. [DOI: 10.1038/bmt.2012.172] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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44
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Shimoi T, Ando M, Munakata W, Kobayashi T, Kakihana K, Ohashi K, Akiyama H, Sakamaki H. The significant impact of acute kidney injury on CKD in patients who survived over 10 years after myeloablative allogeneic SCT. Bone Marrow Transplant 2012; 48:80-4. [PMID: 22635246 DOI: 10.1038/bmt.2012.85] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [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
There are no well-defined studies of chronic kidney disease (CKD) among long-term survivors after hematopoietic SCT. A retrospective longitudinal study was conducted to characterize CKD in 77 subjects that had undergone myeloablative allogeneic SCT, all of whom had their serum creatinine (Cr) levels followed-up during the 10-year period after SCT. Their mean (range) survival time was 14.4 (10.5-20.2) years. CKD was defined as a persistent decrease in the Cr-based estimated glomerular filtration rate to below 60 mL/min/1.73 m². Acute kidney injury (AKI) was defined as an increase in Cr within the first 100 days after SCT, and its severity was classified into three stages according to the AKIN criteria. Kaplan-Meier and Cox proportional hazards regression analyses evaluated the association between AKI and the incidence of CKD. The cumulative incidence of CKD increased over time and reached 34% at 10 years. After adjusting for known risks for post-SCT CKD, each AKIN stage was strongly associated with the incidence of CKD. The incidence of CKD probably increases over time among subjects who are alive at >10 years after SCT. This study places a new emphasis on AKI as an important risk factor for CKD in post-SCT subjects.
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Affiliation(s)
- T Shimoi
- Department of Medicine, Division of Nephrology, Tokyo Metropolitan Cancer Center, Komagome Hospital, Tokyo 113-8677, Japan
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Akiyama H, Yoshida K, Shimizutani K, Yamazaki H, Koizumi M, Yoshioka Y, Kakimoto N, Murakami S, Furukawa S, Ogawa K. PO-369 COMPARISON OF 60 GY AND 54 GY IN HIGH-DOSE-RATE INTERSTITIAL BRACHYTHERAPY FOR EARLY ORAL TONGUE CANCER. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)72335-6] [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: 10/28/2022]
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46
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Foulds P, Yokota O, Thurston A, Davidson Y, Ahmed Z, Holton J, Thompson J, Akiyama H, Arai T, Hasegawa M, Gerhard A, Allsop D, Mann D. Post mortem cerebrospinal fluid α-synuclein levels are raised in multiple system atrophy and distinguish this from the other α-synucleinopathies, Parkinson's disease and Dementia with Lewy bodies. Neurobiol Dis 2012; 45:188-95. [PMID: 21856424 PMCID: PMC3657198 DOI: 10.1016/j.nbd.2011.08.003] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Accepted: 08/03/2011] [Indexed: 12/12/2022] Open
Abstract
Differentiating clinically between Parkinson's disease (PD) and the atypical parkinsonian syndromes of Progressive supranuclear palsy (PSP), corticobasal syndrome (CBS) and multiple system atrophy (MSA) is challenging but crucial for patient management and recruitment into clinical trials. Because PD (and the related disorder Dementia with Lewy bodies (DLB)) and MSA are characterised by the deposition of aggregated forms of α-synuclein protein (α-syn) in the brain, whereas CBS and PSP are tauopathies, we have developed immunoassays to detect levels of total and oligomeric forms of α-syn, and phosphorylated and phosphorylated oligomeric forms of α-syn, within body fluids, in an attempt to find a biomarker that will differentiate between these disorders. Levels of these 4 different forms of α-syn were measured in post mortem samples of ventricular cerebrospinal fluid (CSF) obtained from 76 patients with PD, DLB, PSP or MSA, and in 20 healthy controls. Mean CSF levels of total and oligomeric α-syn, and phosphorylated α-syn, did not vary significantly between the diagnostic groups, whereas mean CSF levels of phosphorylated oligomeric α-syn did differ significantly (p<0.001) amongst the different diagnostic groups. Although all 4 measures of α-syn were higher in patients with MSA compared to all other diagnostic groups, these were only significantly raised (p<0.001) in MSA compared to all other diagnostic groups, for phosphorylated oligomeric forms of α-syn. This suggests that this particular assay may have utility in differentiating MSA from control subject and patients with other α-synucleinopathies. However, it does not appear to be of help in distinguishing patients with PD and DLB from those with PSP or from control subjects. Western blots show that the principal form of α-syn within CSF is phosphorylated, and the finding that the phosphorylated oligomeric α-syn immunoassay appears to be the most informative of the 4 assays would be consistent with this observation.
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Affiliation(s)
- P.G. Foulds
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, University of Lancaster, Lancaster, LA1 4AY, UK
| | - O. Yokota
- Neurodegeneration and Mental Health Research Group, School of Community Based Medicine, University of Manchester, Hope Hospital, Salford, M6 8HD, UK
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama, 700–8558, Japan
| | - A. Thurston
- Neurodegeneration and Mental Health Research Group, School of Community Based Medicine, University of Manchester, Hope Hospital, Salford, M6 8HD, UK
| | - Y. Davidson
- Neurodegeneration and Mental Health Research Group, School of Community Based Medicine, University of Manchester, Hope Hospital, Salford, M6 8HD, UK
| | - Z. Ahmed
- Department of Molecular Neuroscience, Institute of Neurology, University College London, Queen Square, WC1N 3BG, London
| | - J. Holton
- Department of Molecular Neuroscience, Institute of Neurology, University College London, Queen Square, WC1N 3BG, London
| | - J.C. Thompson
- Cerebral Function Unit, Salford Royal Hospitals NHS Foundation Trust, Hope Hospital, Stott Lane, Salford, M6 8HD, UK
| | - H. Akiyama
- Department of Psychogeriatrics, Tokyo Institute of Psychiatry, 2-1-8 Kamikitazawa, Setagaya-ku, Tokyo, 156–8585, Japan
| | - T. Arai
- Department of Psychogeriatrics, Tokyo Institute of Psychiatry, 2-1-8 Kamikitazawa, Setagaya-ku, Tokyo, 156–8585, Japan
| | - M. Hasegawa
- Department of Molecular Neurobiology, Tokyo Institute of Psychiatry, 2-1-8 Kamikitazawa, Setagaya-ku, Tokyo, 156–8585, Japan
| | - A. Gerhard
- Neurodegeneration and Mental Health Research Group, School of Community Based Medicine, University of Manchester, Hope Hospital, Salford, M6 8HD, UK
| | - D. Allsop
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, University of Lancaster, Lancaster, LA1 4AY, UK
| | - D.M.A. Mann
- Neurodegeneration and Mental Health Research Group, School of Community Based Medicine, University of Manchester, Hope Hospital, Salford, M6 8HD, UK
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Akiyama H, Hozumi Y, Nakano T, Kubota I, Goto K. Nuclear relocation of DGKζ in cardiomyocytes under conditions of ischemia/reperfusion. Histol Histopathol 2011; 26:1383-90. [PMID: 21938675 DOI: 10.14670/hh-26.1383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Diacylglycerol (DG) and phosphatidic acid (PA) are generated under various conditions, such as ligand stimulation and several stresses. They serve as second messengers to respond to pathophysiological conditions. DG kinase (DGK) catalyzes DG to produce PA. It is regarded as a regulator of these lipid messengers. Previous studies show that DGKζ, a nuclear isozyme, translocates from the nucleus to the cytoplasm in hippocampal neurons under transient ischemia and never relocates to the nucleus after reperfusion. This study examined whether a similar phenomenon is observed in cardiomyocytes, which represent another type of postmitotic, terminally differentiated cell. We performed immunostaining on ischemic hearts induced by occlusion of the left anterior descending coronary artery and on primary cultured cardiomyocytes under oxygen-glucose deprivation (OGD). In the animal model, 10 min ischemia is sufficient to cause DGKζ to disappear from the nucleus in cardiomyocytes. However, DGKζ is observed again in the nucleus at 10 min following reperfusion after 10 min ischemia, which contrasts sharply with ischemic hippocampal neurons. Similar results were obtained from experiments using primary cultured cardiomyocytes under OGD conditions, except that DGKζ relocates autonomously, if at all, to the nucleus, even under continuous OGD conditions. Results suggest that DGKζ is involved in the acute phase of cellular response to ischemic stress in cardiomyocytes in a similar, but not identical, manner to that of neurons.
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Affiliation(s)
- H Akiyama
- Department of Anatomy and Cell Biology, Yamagata University School of Medicine, Japan
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48
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Akiyama H, Yamamoto K, Tsukanaka M, Kawanabe K, Otsuka H, So K, Goto K, Nakamura T. Revision total hip arthroplasty using a Kerboull-type acetabular reinforcement device with bone allograft. ACTA ACUST UNITED AC 2011; 93:1194-200. [DOI: 10.1302/0301-620x.93b9.26598] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We retrospectively reviewed 40 hips in 36 patients who had undergone acetabular reconstruction using a titanium Kerboull-type acetabular reinforcement device with bone allografts between May 2001 and April 2006. Impacted bone allografts were used for the management of American Academy of Orthopaedic Surgeons Type II defects in 17 hips, and bulk bone allografts together with impacted allografts were used for the management of Type III defects in 23 hips. A total of five hips showed radiological failure at a mean follow-up of 6.7 years (4.5 to 9.3), two of which were infected. The mean pre-operative Merle d’Aubigné score was 10 (5 to 15) vs 13.6 (9 to 18) at the latest follow-up. The Kaplan-Meier survival rate at ten years, calculated using radiological failure or revision of the acetabular component for any reason as the endpoint, was 87% (95% confidence interval 76.3 to 97.7). A separate experimental analysis of the mechanical properties of the device and the load-displacement properties of bone grafts showed that a structurally hard allograft resected from femoral heads of patients with osteoarthritis should be preferentially used in any type of defect. If impacted bone allografts were used, a bone graft thickness of < 25 mm was acceptable in Type II defects. This clinical study indicates that revision total hip replacement using the Kerboull-type acetabular reinforcement device with bone allografts yielded satisfactory mid-term results.
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Affiliation(s)
- H. Akiyama
- Kobe City Medical Center General Hospital, Department of Orthopaedics, 4-6, Minatojimanakamachi, Chuo-ku, Kobe-City, Hyogo 650-0046, Japan
| | - K. Yamamoto
- Kobe City Medical Center General Hospital, Department of Orthopaedics, 4-6, Minatojimanakamachi, Chuo-ku, Kobe-City, Hyogo 650-0046, Japan
| | - M. Tsukanaka
- Kobe City Medical Center General Hospital, Department of Orthopaedics, 4-6, Minatojimanakamachi, Chuo-ku, Kobe-City, Hyogo 650-0046, Japan
| | - K. Kawanabe
- Kobe City Medical Center General Hospital, Department of Orthopaedics, 4-6, Minatojimanakamachi, Chuo-ku, Kobe-City, Hyogo 650-0046, Japan
| | - H. Otsuka
- Aichi Medical University, Department of Orthopaedics, Nagakute, Aichi 480-1195, Japan
| | - K. So
- Kyoto University, Department of Orthopaedics, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto 606-8507, Japan
| | - K. Goto
- Kyoto University, Department of Orthopaedics, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto 606-8507, Japan
| | - T. Nakamura
- Kyoto University, Department of Orthopaedics, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto 606-8507, Japan
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Sudo H, Takizawa S, Ichikawa M, Ueda Y, Kuroda T, Nomura O, Akiyama H, Nobumasa H. 1409 POSTER Highly Sensitive Detection of MicroRNa and MRNa From FFPE Tissue and Blood Samples by Expression Microarray. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70902-9] [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: 11/30/2022]
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50
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Uchiyama Y, Akiyama H, Murakami S, Koseki T, Kishino M, Fukuda Y, Shimizutani K, Furukawa S. Calcifying cystic odontogenic tumour: CT imaging. Br J Radiol 2011; 85:548-54. [PMID: 21828147 DOI: 10.1259/bjr/19841479] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVES Calcifying cystic odontogenic tumour (CCOT) is a rare disorder of the jaw. A comparison between conventional radiographs and CT images in CCOTs has not been reported. The purposes of this study were to analyse conventional radiographs and CT images of CCOTs, establish CT images of CCOTs and assess the utility of CT in the diagnosis of CCOTs. METHODS Nine patients with a histopathologically confirmed CCOT who had both conventional radiographs and CT images were enrolled. RESULTS CT was superior to conventional radiographs in detecting buccolingual expansion, odontomas and radio-opaque bodies. CONCLUSION The characteristic CT appearances of CCOT were that radio-opaque bodies were typically located in the periphery of the lesion and the shape of radio-opaque bodies was linear and/or spotted. CT was useful in diagnosing a CCOT.
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Affiliation(s)
- Y Uchiyama
- Department of Oral and Maxillofacial Radiology, Osaka University Graduate School of Dentistry, Japan.
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