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Narang N, Chung B, Nguyen A, Rodgers D, Imamura T, Kalantari S, Raikhelkar J, Sarswat N, Kim G, Jeevanandam V, Sayer G, Uriel N. Prediction of Mortality in Decompensated Heart Failure by Invasive Hemodynamics Compared to Clinical Assessment. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Imamura T, Rodgers D, Kim G, Raikhelkar J, Sarswat N, Kalantari S, Nguyen A, Chung B, Juricek C, Burkhoff D, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N. Omega-3 Reduces Gastrointestinal Bleeding in Patients With Continuous-flow Left Ventricular Assist Device. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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53
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Narang N, Laffin L, Kalathiya R, Chung B, Nguyen A, Costanzo M, Imamura T, Kalantari S, Kim G, Raikhelkar J, Sarswat N, Jeevanandam V, Sayer G, Uriel N. Normal Serum Lactic Acid is Discordant with Shock in Advanced Heart Failure Patients. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Nguyen A, Imamura T, Chung B, Murks C, Powers J, Riley T, Onsager D, Song T, Ota T, Kalantari S, Raikhelkar J, Sarswat N, Kim G, Costanzo M, Jorde U, Jeevanandam V, Sayer G, Uriel N. High Prevalence of BK Virus in Heart Transplant Patients and Effect on Outcomes. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Mehta P, Imamura T, Belkin M, Sarswat N, Kim G, Raikhelkar J, Kalantari S, Chung B, Nguyen A, Song T, LaBuhn C, Rodgers D, Ota T, Jeevanandam V, Sayer G, Uriel N. Comparison of Hemocompatibility-Related Adverse Events in HVAD versus HeartMate II Device. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Nguyen A, Imamura T, Chung B, Narang N, Holzhauser L, LaBuhn C, Rodgers D, Ota T, Song T, Costanzo M, Kalantari S, Sarswat N, Raikhelkar J, Kim G, Jeevanandam V, Sayer G, Uriel N. Changes in Metabolic Profiles Following Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Imamura T, Sumitomo N, Muraji S, Mori H, Iwashita N, Komori A, Osada Y, Nakano M, Oyanagi T, Kojima T, Yoshiba S, Kobayashi T. 221Characteristics of pediatric Brugada syndrome. Europace 2018. [DOI: 10.1093/europace/euy015.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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58
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Imamura T, Konno S, Murata M, Inoue M, Matsumoto M, Kobayashi M, Kihara H, Sugimoto H, Fujioka T. High serum osmotic pressure on admission suggests hidden malnutrition in patients with neurological disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Oishi Y, Imamura T, Shimomura T, Suzuki K. Visual texture agnosia in dementia with lewy bodies and Alzheimer’s disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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60
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Ohyagi Y, Ohara M, Igase M, Nakamura N, Imamura T, Yanagihara Y, Kira J, Watanabe A, Fujii N. Glucose intolerance associating with cognitive impairment and brain diabetes as a therapeutic target in alzheimer’s disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Nitta D, Kinugawa K, Imamura T, Iino J, Endo M, Amiya E, Hatano M, Kinoshita O, Nawata K, Ono M, Komuro I. Association of the Number of HLA-DR Mismatches With Early Post-transplant Acute Cellular Rejection Among Heart Transplantation Recipients: A Cohort Study in Japanese Population. Transplant Proc 2017; 49:125-129. [PMID: 28104119 DOI: 10.1016/j.transproceed.2016.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Although many risk factors are reported about graft rejection after heart transplantation (HTx), the effect of HLA mismatch (MM) still remains unknown, especially in the Japanese population. The aim of the present study was to investigate the influence of HLA MM on graft rejection among HTx recipients in Japan. METHODS We retrospectively investigated the association of the number of HLA MM including class I (A, B) and class II (DR) (for each locus MM: 0 to 2, total MM: 0 to 6) and the incidence of moderate to severe acute cellular rejection (ACR) confirmed by endomyocardial biopsy (International Society for Heart and Lung Transplantation grade ≥ 3A/2R) within 1 year after HTx. RESULTS Between 2007 and 2014, we had 49 HTx cases in our institute. After excluding those with insufficient data and positive donor-specific antigen, finally 35 patients were enrolled. Moderate to severe ACR was observed in 16 (45.7%) patients. The number of HLA-DR MM was significantly associated with the development of ACR (ACR+: 1.50 ± 0.63, ACR-: 1.11 ± 0.46, P = .029). From univariate analysis, DR MM = 2 was the only independent risk factor for ACR episodes (P = .017). The frequency of ACR within 1 year was significantly higher in those with DR MM = 2 (DR MM = 0 to 1: 0.3 ± 0.47, DR MM = 2: 1.17 ± 1.34 times, P = .007). CONCLUSIONS The number of HLA-DR MMs was associated with the development and recurrence of ACR episodes among HTx recipients within 1 year after transplantation in Japanese population.
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Juricek C, Imamura T, Costantini H, Kagan V, Song T, Onsager D, Ota T, Adatya S, Kim G, Sarswat N, Sayer G, Jeevanandam V, Uriel N. Predictors of Hemodynamic Stabilization Following Intra-Aortic Balloon Pump Implantation for Cardiogenic Shock. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Mehta P, Juricek C, Imamura T, Adatya S, Sarswat N, Kim G, Raikhelkar J, Ota T, Jeevanandam V, Sayer G, Uriel N. Increased Post-Operative Mortality in Patients Undergoing Coronary Artery Bypass Grafting During Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Kim G, Rodgers D, Imamura T, Nguyen A, Chung B, Sarswat N, Raikhelkar J, Adatya S, Sayer G, Abbo R, Burkhoff D, Uriel N. Noninvasive Assessment of Lung Fluid Percentage in Patients with Left Ventricular Assist Devices. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Nguyen A, Lourenco L, Bassi N, Imamura T, Sarswat N, Raikhelkar J, Adatya S, Kim G, Murks C, Powers J, Riley T, Jeevanandam V, Sayer G, Uriel N. Increased Risk of Rejection and Mortality in Heart Transplant Patients Receiving Granulocyte-Colony Stimulating Factor. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Chung B, Knapp M, Rodgers D, Kim G, Adatya S, Sarswat N, Imamura T, Karrar E, Zhou J, Zhang L, Sayer G, Liao J, Uriel N. Longitudinal Rho-Associated Kinase (ROCK) Activity Correlates with Rejection in Heart Transplant Recipients. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Imamura T, Rodgers D, Adatya S, Sarswat N, Kim G, Raikhelkar J, Ota T, Jeevanandam V, Sayer G, Burkhoff D, Uriel N. The Ramp Fingerprint: LVAD Patients Have Similar Filling Pressures and Speed Change Responses at Repeat Ramp Tests. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Kimura M, Nawata K, Kinoshita O, Yamauchi H, Itoda Y, Imamura T, Hatano M, Kinugawa K, Ono M. Cerebrovascular Accident Rate Is Different Between Centrifugal and Axial-Flow Pumps, but Survival and Driveline Infection Rates Are Similar. Transplant Proc 2017; 49:121-124. [DOI: 10.1016/j.transproceed.2016.10.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Akahane M, Shimizu T, Kira T, Onishi T, Uchihara Y, Imamura T, Tanaka Y. Culturing bone marrow cells with dexamethasone and ascorbic acid improves osteogenic cell sheet structure. Bone Joint Res 2016; 5:569-576. [PMID: 27881440 PMCID: PMC5131089 DOI: 10.1302/2046-3758.511.bjr-2016-0013.r1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 09/09/2016] [Indexed: 02/06/2023] Open
Abstract
Objectives To assess the structure and extracellular matrix molecule expression of osteogenic cell sheets created via culture in medium with both dexamethasone (Dex) and ascorbic acid phosphate (AscP) compared either Dex or AscP alone. Methods Osteogenic cell sheets were prepared by culturing rat bone marrow stromal cells in a minimal essential medium (MEM), MEM with AscP, MEM with Dex, and MEM with Dex and AscP (Dex/AscP). The cell number and messenger (m)RNA expression were assessed in vitro, and the appearance of the cell sheets was observed after mechanical retrieval using a scraper. β-tricalcium phosphate (β-TCP) was then wrapped with the cell sheets from the four different groups and subcutaneously implanted into rats. Results After mechanical retrieval, the osteogenic cell sheets from the MEM, MEM with AscP, and MEM with Dex groups appeared to be fragmented or incomplete structures. The cell sheets cultured with Dex/AscP remained intact after mechanical retrieval, without any identifiable tears. Culture with Dex/AscP increased the mRNA and protein expression of extracellular matrix proteins and cell number compared with those of the other three groups. More bridging bone formation was observed after transplantation of the β-TCP scaffold wrapped with cell sheets cultured with Dex/AscP, than in the other groups. Conclusions These results suggest that culture with Dex/AscP improves the mechanical integrity of the osteogenic cell sheets, allowing retrieval of the confluent cells in a single cell sheet structure. This method may be beneficial when applied in cases of difficult tissue reconstruction, such as nonunion, bone defects, and osteonecrosis. Cite this article: M. Akahane, T. Shimizu, T. Kira, T. Onishi, Y. Uchihara, T. Imamura, Y. Tanaka. Culturing bone marrow cells with dexamethasone and ascorbic acid improves osteogenic cell sheet structure. Bone Joint Res 2016;5:569–576. DOI: 10.1302/2046-3758.511.BJR-2016-0013.R1.
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Okajima W, Komatsu S, Ichikawa D, Miyamae M, Ohashi T, Imamura T, Kiuchi J, Taniguchi H, Eigo O. Circulating microRNA profiles in plasma: identification of miR-224 as a novel diagnostic biomarker in hepatocellular carcinoma independent of hepatic function. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61544-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Imamura T, Komatsu S, Ichikawa D, Miyamae M, Morimura R, Ikoma H, Konishi H, Shiozaki A, Taniguchi H, Otsuji E. Plasma microRNA profiles; down-regulation of plasma miR-107 level contributes to poor outcomes in pancreatic cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61414-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ohashi T, Komatsu S, Ichikawa D, Miyamae M, Okajima W, Imamura T, Kiuchi J, Okamoto K, Tsuda H, Otsuji E. Overexpression of PBK/TOPK relates to tumor malignant potential and poor outcome of gastric carcinoma. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61052-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Imamura T, Kiyokawa N, Kato M, Imai C, Okamoto Y, Yano M, Ohki K, Yamashita Y, Kodama Y, Saito A, Mori M, Ishimaru S, Deguchi T, Hashii Y, Shimomura Y, Hori T, Kato K, Goto H, Ogawa C, Koh K, Taki T, Manabe A, Sato A, Kikuta A, Adachi S, Horibe K, Ohara A, Watanabe A, Kawano Y, Ishii E, Shimada H. Characterization of pediatric Philadelphia-negative B-cell precursor acute lymphoblastic leukemia with kinase fusions in Japan. Blood Cancer J 2016; 6:e419. [PMID: 27176795 PMCID: PMC4916297 DOI: 10.1038/bcj.2016.28] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 04/06/2016] [Indexed: 12/11/2022] Open
Abstract
Recent studies revealed that a substantial proportion of patients with high-risk B-cell precursor acute lymphoblastic leukemia (BCP-ALL) harbor fusions involving tyrosine kinase and cytokine receptors, such as ABL1, PDGFRB, JAK2 and CRLF2, which are targeted by tyrosine kinase inhibitors (TKIs). In the present study, transcriptome analysis or multiplex reverse transcriptase–PCR analysis of 373 BCP-ALL patients without recurrent genetic abnormalities identified 29 patients with kinase fusions. Clinically, male predominance (male/female: 22/7), older age at onset (mean age at onset: 8.8 years) and a high white blood cell count at diagnosis (mean: 94 200/μl) reflected the predominance of National Cancer Institute high-risk (NCI-HR) patients (NCI-standard risk/HR: 8/21). Genetic analysis identified three patients with ABL1 rearrangements, eight with PDGFRB rearrangements, two with JAK2 rearrangements, three with IgH-EPOR and one with NCOR1-LYN. Of the 14 patients with CRLF2 rearrangements, two harbored IgH-EPOR and PDGFRB rearrangements. IKZF1 deletion was present in 16 of the 22 patients. The 5-year event-free and overall survival rates were 48.6±9.7% and 73.5±8.6%, respectively. The outcome was not satisfactory without sophisticated minimal residual disease-based stratification. Furthermore, the efficacy of TKIs combined with conventional chemotherapy without allogeneic hematopoietic stem cell transplantation in this cohort should be determined.
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Imamura T, Kinugawa K, Nitta D, Hatano M, Komuro I. Long-Term Adaptive Servo-Ventilator Treatment Prevents Cardiac Death and Improves Clinical Outcome in Patients with Advanced Heart Failure. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Imamura T, Kinugawa K, Nitta D, Hatano M, Itoda Y, Kimura M, Kinoshita O, Yamauchi H, Nawata K, Ono M. Novel Effect of Everolimus in Heart Transplant Recipients - Attenuation of Myocardial Hypertrophy and Improvement of Diastolic Function. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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