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Takada Y, Takagi M, Someya M, Kobayashi T, Aizawa K, Ukon K, Fujita H, Kitsu Y, Komatsu T, Yaegashi Y, Sakata K, Ikeda H. Nutrition Education Reduce Daily Variation of Rectal Volume and Dose in Patients with Prostate Cancer Treated with Intensity-Modulated Radiation Therapy. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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102
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Deyama S, Shimoda K, Ikeda H, Fukuda H, Shuto S, Minami M. Resolvin E3 attenuates lipopolysaccharide-induced depression-like behavior in mice. J Pharmacol Sci 2018; 138:86-88. [PMID: 30293959 DOI: 10.1016/j.jphs.2018.09.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/17/2018] [Accepted: 09/19/2018] [Indexed: 02/07/2023] Open
Abstract
Eicosapentaenoic acid (EPA)-derived resolvin E1 (RvE1) and E2 (RvE2) have antidepressant effects. Here, we investigated the antidepressant effects of resolvin E3 (RvE3) in a mouse model of lipopolysaccharide (LPS)-induced depression. We observed that LPS (0.8 mg/kg, i.p.) significantly increased immobility time on the tail suspension test, and this depression-like behavior was dose-dependently attenuated by intracerebroventricular infusion of RvE3 (10 or 100 ng). No effects of LPS or intracerebroventricular infusion of RvE3 on locomotor activity were observed. These results indicate that RvE3, as well as RvE1 and RvE2, have antidepressant effects.
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103
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Hisazaki K, Hasegawa K, Kaseno K, Miyazaki S, Amaya N, Shiomi Y, Tama N, Ikeda H, Fukuoka Y, Morishita T, Ishida K, Uzui H, Tada H. Endothelial damage and thromboembolic risk after pulmonary vein isolation using the latest ablation technologies: a comparison of the second-generation cryoballoon vs. contact force-sensing radiofrequency ablation. Heart Vessels 2018; 34:509-516. [DOI: 10.1007/s00380-018-1257-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 08/31/2018] [Indexed: 10/28/2022]
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104
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Unno Y, Sato Y, Fukuda H, Ishimura K, Ikeda H, Watanabe M, Tansho-Nagakawa S, Ubagai T, Shuto S, Ono Y. Resolvin E1, but not resolvins E2 and E3, promotes fMLF-induced ROS generation in human neutrophils. FEBS Lett 2018; 592:2706-2715. [PMID: 30069868 DOI: 10.1002/1873-3468.13215] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/26/2018] [Accepted: 07/27/2018] [Indexed: 12/15/2022]
Abstract
E-series resolvins are biosynthesized from eicosapentaenoic acid during the resolution phase of acute inflammation and enhance inflammation resolution. However, the role of E-series resolvins in inflammation resolution is not yet known. Herein, we show that in human polymorphonuclear neutrophils (PMNs), resolvin E1 (RvE1) selectively enhances reactive oxygen species (ROS) generation induced by N-formylmethionyl-leucyl-phenylalanine. The RvE1-mediated enhancement is eliminated by a pan-antagonist of leukotriene B4 (LTB4) receptors, LY255283, or an NADPH oxidase inhibitor, diphenyleneiodonium. Thus, RvE1 enhances NADPH oxidase-mediated ROS generation via LTB4 receptors. Unlike RvE1, resolvins E2 and E3 do not show such activation of PMNs. Our findings suggest that RvE1 contributes to regulation of ROS generation, in accordance with the inflammatory state of the host.
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105
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Morishita T, Uzui H, Ishida K, Kaseno K, Miyazaki S, Fukuoka Y, Ikeda H, Tama N, Shiomi Y, Yamaguchi J, Sato Y, Aoyama D, Ishikawa E, Miyahara K, Tada H. P4730Associations of cachexia and prognosis in patients with heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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106
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Hasegawa K, Miyazaki S, Hisazaki K, Kaseno K, Amaya N, Shiomi Y, Tama N, Ikeda H, Fukuoka Y, Morishita T, Ishida K, Uzui H, Tada H. Gastric Hypomotility After Luminal Esophageal Temperature Guided Second-Generation Cryoballoon Pulmonary Vein Isolation. Circ Arrhythm Electrophysiol 2018; 11:e006691. [DOI: 10.1161/circep.118.006691] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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107
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Ikeda H, Ishii A, Sano K, Chihara H, Arai D, Abekura Y, Nishi H, Ono M, Saji H, Miyamoto S. Activatable fluorescence imaging of macrophages in atherosclerotic plaques using iron oxide nanoparticles conjugated with indocyanine green. Atherosclerosis 2018; 275:1-10. [DOI: 10.1016/j.atherosclerosis.2018.05.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 05/01/2018] [Accepted: 05/16/2018] [Indexed: 10/16/2022]
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108
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Tsukada Y, Nishiyama Y, Nago T, Matsuse H, Harada H, Niiyama H, Katoh A, Ikeda H, Hisashi K. P2551Low serum brain-derived neurotropic factor may predict poor response to cardiac rehabilitation in patients with cardiovascular disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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109
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Kaseno K, Hisazaki K, Nakamura K, Ikeda E, Hasegawa K, Aoyama D, Shiomi Y, Ikeda H, Morishita T, Ishida K, Amaya N, Uzui H, Tada H. The impact of the CartoSound® image directly acquired from the left atrium for integration in atrial fibrillation ablation. J Interv Card Electrophysiol 2018; 53:301-308. [DOI: 10.1007/s10840-018-0368-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 04/03/2018] [Indexed: 10/17/2022]
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110
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Hikita H, Sato M, Endo M, Sato M, Soroida Y, Kobayashi T, Gotoh H, Iwai T, Nakagomi R, Tateishi R, Komuro T, Sone S, Koike K, Yatomi Y, Ikeda H. Disappearance of perihepatic lymph node enlargement after hepatitis C viral eradication with direct-acting antivirals. J Viral Hepat 2018; 25:329-334. [PMID: 29091333 DOI: 10.1111/jvh.12819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 09/19/2017] [Indexed: 12/09/2022]
Abstract
Perihepatic lymph node enlargement (PLNE) which has been shown to be negatively associated with hepatocellular carcinoma (HCC) occurrence is frequently observed in chronic liver disease; however, changes in the state of perihepatic lymph nodes after eradication of hepatitis C virus (HCV) have not been investigated yet. We aimed to evaluate this issue. We enrolled 472 patients with chronic HCV infection who achieved viral eradication with direct-acting antivirals (DAA). We investigated whether the status of perihepatic lymph nodes changed before and after HCV eradication (primary endpoint). We also evaluated the association between PLNE and clinical findings such as liver fibrosis or hepatocellular injury before HCV eradication (secondary endpoint). Perihepatic lymph node enlargement was detected in 164 of 472 (34.7%) patients before DAA treatment. Surprisingly, disappearance of PLNE was observed in 23.8% (39 patients) of all PLNE-positive patients after eradication of HCV. Disappearance of PLNE was not associated with baseline clinical parameters or changing rates of clinical findings before and after DAA treatment. At baseline, presence of PLNE was significantly associated with a lower serum HCV-RNA level (P = .03), a higher serum AST level (P = .004) and a higher ALT level (P < .001) after adjustment for sex and age. In conclusion, PLNEs became undetectable after DAA treatment in 23.8% of PLNE-positive patients. Further study with a longer follow-up period is needed to clarify the clinical importance of this phenomenon especially in relationship with the risk of HCC development.
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112
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Jowhari F, Inoue H, Ikeda H, Onimaru M, Bechara R. A216 PREDICTING DIFFICULT CASES IN POEM (PER-ORAL ENDOSCOPIC MYOTOMY) PROCEDURES. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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113
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Ikeda H, Nakajima N, Terashima T, Kawabata Y, Miyake H, Miyamoto S. Repeated Short-Term Recurrence of Chronic Subdural Hematoma Associated with Metastasis to Hematoma Capsule Originating from Extracranial Malignant Tumor. World Neurosurg 2018; 111:201-206. [DOI: 10.1016/j.wneu.2017.12.116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 12/15/2017] [Accepted: 12/18/2017] [Indexed: 02/07/2023]
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114
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French J, Lawson J, Yapici Z, Ikeda H, Polster T, Nabbout R, Curatolo P, de Vries P, Dlugos D, Voi M, Fan J, Ridolfi A, Pelov D, Franz D. Outcomes in patients with tuberous sclerosis complex-associated treatment-refractory seizures, transitioning from placebo in core phase to everolimus during extension phase of the EXIST-3 trial. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.293] [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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115
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Ueno S, Hatano T, Oji Y, Saiki S, Ikeda H, Hattori N. Serum non-mercaptoalbumin in patients with Parkinson's disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2952] [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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116
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Omote Y, Fujioka M, Ikeda H, Hirozawa D, Oboshi T, Imai K, Terada K, Inoue Y, Wolf P. Usefulness of including cognitive tasks as activation method in standard EEG: A preliminary Japanese experience. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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117
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Fukuoka Y, Nakano A, Tama N, Hasegawa K, Ikeda H, Morishita T, Ishida K, Kaseno K, Amaya N, Uzui H, Okazawa H, Tada H. Impaired myocardial microcirculation in the flow-glucose metabolism mismatch regions in revascularized acute myocardial infarction. J Nucl Cardiol 2017; 24:1641-1650. [PMID: 27301963 DOI: 10.1007/s12350-016-0526-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 04/13/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND In successfully revascularized acute myocardial infarction (AMI), microvascular function in a myocardial flow-glucose metabolism mismatch pattern has not been reported. We aimed to elucidate myocardial flow reserve (MFR) and myocardial viability in mismatch segments. METHODS 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) and adenosine stress 13N-ammonia PET were performed in eighteen AMI patients to evaluate myocardial glucose metabolism, myocardial blood flow (MBF), and MFR. Infarct segments were classified into 3 groups: normal (preserved resting MBF), mismatch (preserved FDG uptake but reduced resting MBF), and match (reduced FDG uptake and resting MBF). Regional wall motion score (WMS) was assessed immediately after reperfusion and recovery periods. RESULTS MFR in the mismatch group was significantly lower than that in non-infarct-related segments (1.655 ± 0.516 vs 2.282 ± 0.629, P < .01) and similar to that in the match group (1.635 ± 0.528, P = .999). WMS in the mismatch group was significantly improved (3.07 ± 0.48 vs 2.07 ± 1.14, P = .003); however, in recovery periods, WMS in the mismatch group was significantly higher than that in the normal group (1.05 ± 1.04, P < .01). CONCLUSIONS In successfully revascularized AMI, microvascular function is impaired despite preserved myocardial glucose metabolism in mismatch segments.
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118
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Morishita T, Uzui H, Amaya N, Kaseno K, Ishida K, Fukuoka Y, Ikeda H, Hasegawa K, Tama N, Shiomi Y, Sato Y, Miyoshi M, Kataoka T, Tsuji T, Tada H. P1550CHADS2, CHA2DS2-VASc and SYNTAX scores in the prediction of clinical outcomes in patients with acute coronary syndrome after percutaneous coronary intervention. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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119
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Katoh A, Hattori Y, Yoshikwa N, Niiyama H, Harada H, Kai H, Ikeda H. P857The effects of ezetimibe on coronary plaque volume in patients with stable angina pectoris previously treated with statins. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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120
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Sato M, Tateishi R, Yasunaga H, Matsui H, Fushimi K, Ikeda H, Yatomi Y, Koike K. Association between hospital volume and in-hospital mortality following radiofrequency ablation for hepatocellular carcinoma. BJS Open 2017; 1:50-54. [PMID: 29951606 PMCID: PMC5989986 DOI: 10.1002/bjs5.9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 05/30/2017] [Indexed: 12/21/2022] Open
Abstract
Background Radiofrequency ablation (RFA) is a minimally invasive treatment for hepatocellular carcinoma (HCC). There is increasing evidence of an association between increasing hospital volume and lower postoperative mortality for many surgical procedures, but this is difficult to establish with minimally invasive treatments, where postoperative mortality is low. The aim of this study was to investigate the relationship between hospital volume and in-hospital mortality following RFA using a Japanese nationwide database. Methods Data from the Diagnostic Procedure Combination database were analysed from 1 July 2010 to 31 March 2012. Multivariable logistic regression was used to analyse the relationship between hospital volume and in-hospital mortality following RFA, with adjustment for patient background. Results Some 36 675 patients with HCC were identified in the database. The overall in-hospital mortality rate from RFA was 0·31 per cent. In-hospital mortality was significantly higher in low-volume than high-volume hospitals (odds ratio 2·57, 95 per cent c.i. 1·61 to 4·09; P < 0·001). Higher in-hospital mortality was significantly associated with older age and a higher Charlson Co-morbidity Index score. Conclusion RFA for HCC was associated with acceptably low mortality in Japan, but in-hospital mortality following RFA was affected by hospital procedural volume.
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Kitani H, Ikeda H, Atsumi T, Watanabe R. Efficiency of Neural Differentiation of Mouse P19 Embryonal Carcinoma Cells is Dependent on the Seeding Density. Cell Transplant 2017; 6:521-5. [PMID: 9331505 DOI: 10.1177/096368979700600514] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Serum-free culture conditions for retinoic acid-induced neural differentiation of mouse P19 embryonal carcinoma cells were determined for future ex vivo retroviral gene transfer and brain transplantation studies. Neural differentiation of P19 cells was dependent on the seeding densities, and both neurons and astroglia differentiated efficiently at high seeding densities (2 × 104 and 5 × 104 cells/cm2) but not at low seeding density (1 × 104 cells/cm2). In addition, P19 cells cultured at 5 × 104 cells/cm2 showed neural differentiation whether or not they were infected with Friend leukemia virus FrC6-V, which inhibited neural differentiation at 2 × 104 cells/cm2. These results indicate that FrC6-V-infected P19 embryonal carcinoma cells should be seeded at high density to achieve efficient neural differentiation in vitro for ex vivo gene transfer with a FrC6-V–derived retroviral vector system.
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Ogihara MH, Ikeda H, Yamada N, Hikiba J, Nakaoka T, Fujimoto Y, Suzuki Y, Saito K, Mizoguchi A, Kataoka H. Identification of ecdysteroidogenic enzyme genes and their expression during pupal diapause in the cabbage armyworm, Mamestra brassicae. INSECT MOLECULAR BIOLOGY 2017; 26:286-297. [PMID: 28121379 DOI: 10.1111/imb.12291] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this study, we identified ecdysteroidogenic enzymes in the cabbage armyworm, Mamestra brassicae, and demonstrated reduced expression of these genes during diapause. Some insects employ a temporary developmental arrest, diapause, to survive in severe environments. The titres of the moulting hormone ecdysteroid were reduced in diapause pupae of M. brassicae; therefore, ecdysteroidogenesis might be suppressed by a diapause-specific mechanism. To clarify expression changes of ecdysteroidogenic enzyme genes during diapause in M. brassicae, we first identified the genes for seven ecdysteroidogenic enzymes: Neverland, Non-molting glossy (Nm-g), CYP307A1 (Spook), CYP306A1 (Phantom), CYP302A1 (Disembodied), CYP315A1 (Shadow) and CYP314A1 (Shade). Enzymatic assays using heterologous expression in Drosophila Schneider 2 (S2) cells and analysis of mRNA distribution indicated that the identified genes were ecdysteroidogenic enzymes of M. brassicae. Expression levels of these ecdysteroidogenic enzyme genes were compared between prothoracic glands in different pupal stages throughout diapause. Immediately after pupation, diapause-destined pupae showed similar expression levels of ecdysteroidogenic enzyme genes to those of nondiapause pupae. All of these genes showed reduced gene expression after diapause initiation. Expression was immediately increased in diapause-destined pupae at the postdiapause quiescence phase. These results indicate that reduced expression of ecdysteroidogenic enzyme genes suppresses ecdysteroidogenesis and maintains developmental arrest during diapause.
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Hisazaki K, Kaseno K, Hasegawa K, Amaya N, Sato Y, Miyoshi M, Shiomi Y, Tama N, Ikeda H, Fukuoka Y, Morishita T, Ishida K, Uzui H, Tada H. P872How to predict phrenic nerve injury during cryoballoon ablation of atrial fibrillation?: Importance of the CMAP amplitude and cryoballoon temperature monitoring. Europace 2017. [DOI: 10.1093/ehjci/eux151.054] [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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124
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Asa SL, Casar-Borota O, Chanson P, Delgrange E, Earls P, Ezzat S, Grossman A, Ikeda H, Inoshita N, Karavitaki N, Korbonits M, Laws ER, Lopes MB, Maartens N, McCutcheon IE, Mete O, Nishioka H, Raverot G, Roncaroli F, Saeger W, Syro LV, Vasiljevic A, Villa C, Wierinckx A, Trouillas J. From pituitary adenoma to pituitary neuroendocrine tumor (PitNET): an International Pituitary Pathology Club proposal. Endocr Relat Cancer 2017; 24:C5-C8. [PMID: 28264912 DOI: 10.1530/erc-17-0004] [Citation(s) in RCA: 214] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 02/01/2017] [Indexed: 11/08/2022]
Abstract
The classification of neoplasms of adenohypophysial cells is misleading because of the simplistic distinction between adenoma and carcinoma, based solely on metastatic spread and the poor reproducibility and predictive value of the definition of atypical adenomas based on the detection of mitoses or expression of Ki-67 or p53. In addition, the current classification of neoplasms of the anterior pituitary does not accurately reflect the clinical spectrum of behavior. Invasion and regrowth of proliferative lesions and persistence of hormone hypersecretion cause significant morbidity and mortality. We propose a new terminology, pituitary neuroendocrine tumor (PitNET), which is consistent with that used for other neuroendocrine neoplasms and which recognizes the highly variable impact of these tumors on patients.
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125
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Morishita T, Uzui H, Mitsuke Y, Amaya N, Kaseno K, Ishida K, Fukuoka Y, Ikeda H, Tama N, Yamazaki T, Lee JD, Tada H. Association between matrix metalloproteinase-9 and worsening heart failure events in patients with chronic heart failure. ESC Heart Fail 2017; 4:321-330. [PMID: 28772055 PMCID: PMC5542740 DOI: 10.1002/ehf2.12137] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 11/30/2016] [Accepted: 12/28/2016] [Indexed: 12/14/2022] Open
Abstract
AIMS Matrix metalloproteinase (MMP) is up-regulated during heart failure (HF) and influences ventricular remodeling. We hypothesized that disparity between MMP-9 and tissue inhibitors of MMP-1 (TIMP-1) results in clinical manifestations and is related to prognostic risk in patients with chronic HF. METHODS AND RESULTS Plasma levels of MMP-9, TIMP-1, and brain natriuretic peptide (BNP) were measured in 173 patients with chronic HF. Combined endpoints of worsening HF events were assessed during follow-up (median 109 months). MMP-9 and TIMP-1 levels and the MMP-9/TIMP-1 ratio increased with increasing severity of the New York Heart Association class (P for trend = 0.003, 0.011, and 0.005, respectively). Patients with HF events (n = 35) had significantly higher MMP-9 than those without HF events (P = 0.004). Kaplan-Meier analysis demonstrated a higher probability of HF events with high MMP-9 values (>23.2 ng/mL; P = 0.005). A multivariate Cox proportional hazard model showed that high MMP-9 values were an independent predictor of HF events (hazard ratio, 3.73; 95% confidence interval (CI), 1.03-13.46; P = 0.043). In patients with lower BNP levels (≤210 pg/mL), the adjusted hazard ratio for HF events was 3.63 (95% CI, 1.20-11.02; P = 0.023) among patients with high MMP-9 values compared with patients with low BNP and low MMP-9 values. CONCLUSIONS MMP-9 and TIMP-1 levels correlate with the severity of chronic HF. MMP-9 is a strong predictor of HF events, suggesting that a disparity between MMP-9 and TIMP-1 levels and increased MMP-9 levels may help predict HF events.
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