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Gómez Garre D, Modrego J. Special Issue: Gut Microbiota in Disease and Health 2.0. Int J Mol Sci 2024; 25:4344. [PMID: 38673929 PMCID: PMC11050629 DOI: 10.3390/ijms25084344] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
In recent years, research on the gut microbiota has undeniably captivated the attention of students, investigators, clinicians, and the general public [...].
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Affiliation(s)
- Dulcenombre Gómez Garre
- Microbiota and Cardiovascular Risk Laboratory, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040 Madrid, Spain
- Network Biomedical Research Center for Cardiovascular Diseases (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Physiology Department, School of Medicine, Universidad Complutense, 28040 Madrid, Spain
| | - Javier Modrego
- Microbiota and Cardiovascular Risk Laboratory, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040 Madrid, Spain
- Network Biomedical Research Center for Cardiovascular Diseases (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
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2
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Modrego J, Ortega-Hernández A, Goirigolzarri J, Restrepo-Córdoba MA, Bäuerl C, Cortés-Macías E, Sánchez-González S, Esteban-Fernández A, Pérez-Villacastín J, Collado MC, Gómez-Garre D. Gut Microbiota and Derived Short-Chain Fatty Acids Are Linked to Evolution of Heart Failure Patients. Int J Mol Sci 2023; 24:13892. [PMID: 37762194 PMCID: PMC10530267 DOI: 10.3390/ijms241813892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/01/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
There is a lack of direct evidence regarding gut microbiota dysbiosis and changes in short-chain fatty acids (SCFAs) in heart failure (HF) patients. We sought to assess any association between gut microbiota composition, SCFA production, clinical parameters, and the inflammatory profile in a cohort of newly diagnosed HF patients. In this longitudinal prospective study, we enrolled eighteen newly diagnosed HF patients. At admission and after 12 months, blood samples were collected for the assessment of proinflammatory cytokines, monocyte populations, and endothelial dysfunction, and stool samples were collected for analysis of gut microbiota composition and quantification of SCFAs. Twelve months after the initial HF episode, patients demonstrated improved clinical parameters and reduced inflammatory state and endothelial dysfunction. This favorable evolution was associated with a reversal of microbiota dysbiosis, consisting of the increment of health-related bacteria, such as genus Bifidobacterium, and levels of SCFAs, mainly butyrate. Furthermore, there was a decrease in the abundance of pathogenic bacteria. In vitro, fecal samples collected after 12 months of follow-up exhibited lower inflammation than samples collected at admission. In conclusion, the favorable progression of HF patients after the initial episode was linked to the reversal of gut microbiota dysbiosis and increased SCFA production, particularly butyrate. Whether restoring butyrate levels or promoting the growth of butyrate-producing bacteria could serve as a complementary treatment for these patients deserves further studies.
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Affiliation(s)
- Javier Modrego
- Laboratorio de Riesgo Cardiovascular y Microbiota, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040 Madrid, Spain; (J.M.); (A.O.-H.); (S.S.-G.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain;
| | - Adriana Ortega-Hernández
- Laboratorio de Riesgo Cardiovascular y Microbiota, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040 Madrid, Spain; (J.M.); (A.O.-H.); (S.S.-G.)
| | - Josebe Goirigolzarri
- Servicio de Cardiología, Hospital Clínico de San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040 Madrid, Spain; (J.G.); (M.A.R.-C.)
| | - María Alejandra Restrepo-Córdoba
- Servicio de Cardiología, Hospital Clínico de San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040 Madrid, Spain; (J.G.); (M.A.R.-C.)
| | - Christine Bäuerl
- Instituto de Agroquímica y Tecnología de los Alimentos (IATA-CSIC), 46980 Paterna, Spain; (C.B.); (E.C.-M.); (M.C.C.)
| | - Erika Cortés-Macías
- Instituto de Agroquímica y Tecnología de los Alimentos (IATA-CSIC), 46980 Paterna, Spain; (C.B.); (E.C.-M.); (M.C.C.)
| | - Silvia Sánchez-González
- Laboratorio de Riesgo Cardiovascular y Microbiota, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040 Madrid, Spain; (J.M.); (A.O.-H.); (S.S.-G.)
| | | | - Julián Pérez-Villacastín
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain;
- Servicio de Cardiología, Hospital Clínico de San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040 Madrid, Spain; (J.G.); (M.A.R.-C.)
- Departamento de Medicina, Facultad de Medicina, Universidad Complutense, 28040 Madrid, Spain
- Fundación para la Investigación Interhospitalaria Cardiovascular, 28008 Madrid, Spain
| | - María Carmen Collado
- Instituto de Agroquímica y Tecnología de los Alimentos (IATA-CSIC), 46980 Paterna, Spain; (C.B.); (E.C.-M.); (M.C.C.)
| | - Dulcenombre Gómez-Garre
- Laboratorio de Riesgo Cardiovascular y Microbiota, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040 Madrid, Spain; (J.M.); (A.O.-H.); (S.S.-G.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain;
- Departamento de Fisiología, Facultad de Medicina, Universidad Complutense, 28040 Madrid, Spain
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Enríquez-Vázquez D, Quintanilla JG, García-Escolano A, Couselo-Seijas M, Simón-Chica A, Lee P, Alfonso-Almazán JM, Mahía P, Redondo-Rodríguez A, Modrego J, Ortega-Hernández A, Marcos-Alberca P, Magni R, Calvo E, Gómez-Gordo R, Yan P, La Rosa G, Bustamante-Madrión J, Pérez-García CN, Martín-Sánchez FJ, Calvo D, de la Hera JM, García-Torrent MJ, García-Osuna Á, Ordonez-Llanos J, Vázquez J, Pérez-Villacastín J, Pérez-Castellano N, Loew LM, Sánchez-González J, Gómez-Garre D, Filgueiras-Rama D. Non-invasive electromechanical assessment during atrial fibrillation identifies underlying atrial myopathy alterations with early prognostic value. Nat Commun 2023; 14:4613. [PMID: 37542075 PMCID: PMC10403561 DOI: 10.1038/s41467-023-40196-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 07/18/2023] [Indexed: 08/06/2023] Open
Abstract
Electromechanical characterization during atrial fibrillation (AF) remains a significant gap in the understanding of AF-related atrial myopathy. This study reports mechanistic insights into the electromechanical remodeling process associated with AF progression and further demonstrates its prognostic value in the clinic. In pigs, sequential electromechanical assessment during AF progression shows a progressive decrease in mechanical activity and early dissociation from its electrical counterpart. Atrial tissue samples from animals with AF reveal an abnormal increase in cardiomyocytes death and alterations in calcium handling proteins. High-throughput quantitative proteomics and immunoblotting analyses at different stages of AF progression identify downregulation of contractile proteins and progressive increase in atrial fibrosis. Moreover, advanced optical mapping techniques, applied to whole heart preparations during AF, demonstrate that AF-related remodeling decreases the frequency threshold for dissociation between transmembrane voltage signals and intracellular calcium transients compared to healthy controls. Single cell simulations of human atrial cardiomyocytes also confirm the experimental results. In patients, non-invasive assessment of the atrial electromechanical relationship further demonstrate that atrial electromechanical dissociation is an early prognostic indicator for acute and long-term rhythm control.
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Affiliation(s)
- Daniel Enríquez-Vázquez
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Servicio de Cardiología, Instituto de Investigación Biomédica A Coruña (INIBIC), Complexo Hospitalario Universitario A Coruña, A Coruña, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Jorge G Quintanilla
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
- Cardiovascular Institute, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Alba García-Escolano
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- ETSI Telecomunicación, Universidad Politécnica de Madrid, Madrid, Spain
| | - Marinela Couselo-Seijas
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Ana Simón-Chica
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Peter Lee
- Essel Research and Development Inc., Toronto, ON, Canada
| | - José Manuel Alfonso-Almazán
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Patricia Mahía
- Cardiovascular Institute, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Andrés Redondo-Rodríguez
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Javier Modrego
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
- Laboratorio de Microbiota y Biología Vascular, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Adriana Ortega-Hernández
- Laboratorio de Microbiota y Biología Vascular, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Pedro Marcos-Alberca
- Cardiovascular Institute, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Ricardo Magni
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Enrique Calvo
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Rubén Gómez-Gordo
- Laboratorio de Microbiota y Biología Vascular, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Ping Yan
- Richard D. Berlin Center for Cell Analysis and Modeling, University of Connecticut School of Medicine, Farmington, CT, USA
| | - Giulio La Rosa
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - José Bustamante-Madrión
- Emergency Department, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Carlos Nicolás Pérez-García
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Cardiovascular Institute, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - F Javier Martín-Sánchez
- Emergency Department, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - David Calvo
- Hospital Universitario Central de Asturias, Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - Jesús M de la Hera
- Hospital Universitario Central de Asturias, Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | | | - Álvaro García-Osuna
- Department of Clinical Biochemistry, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
- Institut de Recerca de l'Hospital Santa Creu i Sant Pau, Institut d'Investigacions Biomèdiques, IIB Sant Pau, Barcelona, Spain
| | - Jordi Ordonez-Llanos
- Department of Clinical Biochemistry, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
- Universidad Autónoma, Barcelona, Spain
- Foundation for Clinical Biochemistry & Molecular Pathology, Madrid, Spain
| | - Jesús Vázquez
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Julián Pérez-Villacastín
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
- Cardiovascular Institute, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
- Fundación Interhospitalaria para la Investigación Cardiovascular (FIC), Madrid, Spain
| | - Nicasio Pérez-Castellano
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
- Cardiovascular Institute, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
- Fundación Interhospitalaria para la Investigación Cardiovascular (FIC), Madrid, Spain
| | - Leslie M Loew
- Richard D. Berlin Center for Cell Analysis and Modeling, University of Connecticut School of Medicine, Farmington, CT, USA
| | | | - Dulcenombre Gómez-Garre
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
- Laboratorio de Microbiota y Biología Vascular, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - David Filgueiras-Rama
- Novel Arrhythmogenic Mechanisms Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.
- Cardiovascular Institute, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain.
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Martín Giménez VM, Modrego J, Gómez-Garre D, Manucha W, de las Heras N. Gut Microbiota Dysbiosis in COVID-19: Modulation and Approaches for Prevention and Therapy. Int J Mol Sci 2023; 24:12249. [PMID: 37569625 PMCID: PMC10419057 DOI: 10.3390/ijms241512249] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 07/28/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
Inflammation and oxidative stress are critical underlying mechanisms associated with COVID-19 that contribute to the complications and clinical deterioration of patients. Additionally, COVID-19 has the potential to alter the composition of patients' gut microbiota, characterized by a decreased abundance of bacteria with probiotic effects. Interestingly, certain strains of these bacteria produce metabolites that can target the S protein of other coronaviruses, thereby preventing their transmission and harmful effects. At the same time, the presence of gut dysbiosis can exacerbate inflammation and oxidative stress, creating a vicious cycle that perpetuates the disease. Furthermore, it is widely recognized that the gut microbiota can metabolize various foods and drugs, producing by-products that may have either beneficial or detrimental effects. In this regard, a decrease in short-chain fatty acid (SCFA), such as acetate, propionate, and butyrate, can influence the overall inflammatory and oxidative state, affecting the prevention, treatment, or worsening of COVID-19. This review aims to explore the current evidence regarding gut dysbiosis in patients with COVID-19, its association with inflammation and oxidative stress, the molecular mechanisms involved, and the potential of gut microbiota modulation in preventing and treating SARS-CoV-2 infection. Given that gut microbiota has demonstrated high adaptability, exploring ways and strategies to maintain good intestinal health, as well as an appropriate diversity and composition of the gut microbiome, becomes crucial in the battle against COVID-19.
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Affiliation(s)
- Virna Margarita Martín Giménez
- Instituto de Investigaciones en Ciencias Químicas, Facultad de Ciencias Químicas y Tecnológicas, Universidad Católica de Cuyo, San Juan 5400, Argentina;
| | - Javier Modrego
- Laboratorio de Riesgo Cardiovascular y Microbiota, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040 Madrid, Spain;
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Dulcenombre Gómez-Garre
- Laboratorio de Riesgo Cardiovascular y Microbiota, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040 Madrid, Spain;
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Departamento de Fisiología, Facultad de Medicina, Plaza Ramón y Cajal, s/n. Universidad Complutense, 28040 Madrid, Spain
| | - Walter Manucha
- Área de Farmacología, Departamento de Patología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza 5500, Argentina;
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Mendoza 5500, Argentina
| | - Natalia de las Heras
- Departamento de Fisiología, Facultad de Medicina, Plaza Ramón y Cajal, s/n. Universidad Complutense, 28040 Madrid, Spain
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Ortega-Madueño I, Modrego J, Gómez-Gordo R, Ortega-Hernández A, Pérez de Isla L, Muñoz JC, Nieto ML, Gómez-Garre D. Relationship between the coronary artery calcium quantification and gut microbiota composition in subjects without previous cardiovascular disease: A pilot study. Clin Investig Arterioscler 2022; 34:205-215. [PMID: 35125248 DOI: 10.1016/j.arteri.2021.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/04/2021] [Accepted: 11/28/2021] [Indexed: 06/14/2023]
Abstract
AIM To investigate the relationship between gut microbiota composition and the presence of coronary atherosclerosis assessed by coronary artery calcium (CAC) quantification in individuals without previous cardiovascular disease (CVD). METHODS We included 20 patients over 18 years of age with no history of CVD who underwent multiple detector-computed tomography. From each patient, a stool sample was obtained to characterize gut microbiota composition by sequencing bacterial 16S ribosomal RNA gene. In addition, circulating levels of TNF-α and IL-1β, as well as trimethylamine N-oxide (TMAO) were determined in plasma samples by automated ELISA and capillary gas chromatography-mass spectrometry, respectively. RESULTS The mean age of patients was 63.5 years and 60% were women. Half of patients had CAC >100 (Agatston score), and were characterized by a higher abundance of the phylum Proteobacteria, mainly of bacteria belonging to the families Enterobacteriaceae and than patients with a CAC ≤ 100. Moreover, bacterial genera identified as biomarkers, such as Enterobacter, Escherichia/Shigella y Klebsiella, were positively associated with inflammation levels and with TMAO production. CONCLUSION Our data shows a gut microbiota profile associated with the presence of coronary calcium in patients without previous CVD. Although there are no strategies to decrease the amount of coronary calcium, gut microbiota is highly malleable by several factors. The possibility of preventing and even intervening CVD progression through strategies targeted gut microbiota is a very attractive idea that deserves further studies.
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Affiliation(s)
- Isabel Ortega-Madueño
- Servicio de Análisis Clínicos, Instituto de Medicina de Laboratorio, Hospital Clínico San Carlos-IdISSC, Madrid, España
| | - Javier Modrego
- Laboratorio de Biología Vascular y Microbiota, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, España; Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, España
| | - Rubén Gómez-Gordo
- Laboratorio de Biología Vascular y Microbiota, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, España
| | - Adriana Ortega-Hernández
- Laboratorio de Biología Vascular y Microbiota, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, España
| | - Leopoldo Pérez de Isla
- Servicio de Cardiología, Hospital Clínico San Carlos-IdISSC, Madrid, España; Fundación Hipercolesterolemia Familiar, Madrid, España
| | - Juan Carlos Muñoz
- Servicio de Cardiología, Hospital Universitario Río Hortega, Valladolid, España
| | - M Luisa Nieto
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, España; Instituto de Biología y Genética Molecular, CSIC-Universidad de Valladolid, Valladolid, España
| | - Dulcenombre Gómez-Garre
- Laboratorio de Biología Vascular y Microbiota, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, España; Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, España.
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Gutiérrez-Calabrés E, Ortega-Hernández A, Modrego J, Gómez-Gordo R, Caro-Vadillo A, Rodríguez-Bobada C, González P, Gómez-Garre D. Gut Microbiota Profile Identifies Transition From Compensated Cardiac Hypertrophy to Heart Failure in Hypertensive Rats. Hypertension 2020; 76:1545-1554. [PMID: 32921194 DOI: 10.1161/hypertensionaha.120.15123] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [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] [Indexed: 02/07/2023]
Abstract
Microcirculatory alterations displayed by patients with heart failure (HF) induce structural and functional intestinal changes that may affect normal gut microbial community. At the same time, gut microbiota can influence pathological mechanisms implicated in HF progression. However, it is unknown whether gut microbiota dysbiosis can precede the development of cardiac alterations in HF or it is only a mere consequence. Our aim was to investigate the potential relationship between gut microbiota composition and HF development by comparing spontaneously hypertensive heart failure and spontaneously hypertensive rat models. Gut microbiota from spontaneously hypertensive heart failure, spontaneously hypertensive rat, and normotensive Wistar Kyoto rats at 9 and 19 months of age was analyzed by sequencing the 16S ribosomal RNA gene, and KEGG metabolic pathways associated to 16S profiles were predicted. Beta diversity, Firmicutes/Bacteroidetes ratio, taxonomic abundances, and potential metabolic functions of gut microbiota were significantly different in spontaneously hypertensive heart failure with respect to spontaneously hypertensive rat before (9 months) and after (19 months) cardiac differences were presented. Nine-month-old spontaneously hypertensive heart failure showed a significant increase in the genera Paraprevotella, Oscillospira, Prevotella 9, Faecalitalea, Faecalibacterium, Ruminiclostridium 6, Phascolarctobacterium, Butyrivibrio, Parasutterella, and Parabacteroides compared with both Wistar Kyoto and spontaneously hypertensive rat, while Ruminiclostridium 9, Oscillibacter, Ruminiclostridium, Mucispirillum, Intestinimonas, and Akkermansia were diminished. Of them, Akkermansia, Prevotella 9, Paraprevotella, and Phascolarctobaterium were associated to changes in cardiac structure and function. Our results demonstrate an association between specific changes in gut microbiota and the development of HF in a hypertensive model of HF and further support the intervention to restore gut microbiota as an innovative therapeutic strategy for preventing HF.
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Affiliation(s)
- Elena Gutiérrez-Calabrés
- From the Microbiota and Vascular Biology Laboratory, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain (E.G.-C., A.O.-H., J.M., R.G.-G., D.G.-G.)
| | - Adriana Ortega-Hernández
- Biomedical Research Networking Center in Cardiovascular Diseases (CIBERCV), Madrid, Spain (J.M., D.G.-G.)
| | - Javier Modrego
- From the Microbiota and Vascular Biology Laboratory, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain (E.G.-C., A.O.-H., J.M., R.G.-G., D.G.-G.)
- Biomedical Research Networking Center in Cardiovascular Diseases (CIBERCV), Madrid, Spain (J.M., D.G.-G.)
| | - Rubén Gómez-Gordo
- From the Microbiota and Vascular Biology Laboratory, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain (E.G.-C., A.O.-H., J.M., R.G.-G., D.G.-G.)
| | - Alicia Caro-Vadillo
- Department of Medicine and Animal Surgery, Veterinary School, Universidad Complutense, Madrid, Spain (A.C.-V.)
| | - Cruz Rodríguez-Bobada
- Unit of Medicine and Experimental Surgery, Hospital Clínico San Carlos-IdISSC, Madrid, Spain (C.R.-B., P.G.)
| | - Pablo González
- Unit of Medicine and Experimental Surgery, Hospital Clínico San Carlos-IdISSC, Madrid, Spain (C.R.-B., P.G.)
| | - Dulcenombre Gómez-Garre
- From the Microbiota and Vascular Biology Laboratory, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain (E.G.-C., A.O.-H., J.M., R.G.-G., D.G.-G.)
- Biomedical Research Networking Center in Cardiovascular Diseases (CIBERCV), Madrid, Spain (J.M., D.G.-G.)
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Torres-Do Rego A, Barrientos M, Ortega-Hernández A, Modrego J, Gómez-Gordo R, Álvarez-Sala LA, Cachofeiro V, Gómez-Garre D. Identification of a Plasma Microrna Signature as Biomarker of Subaneurysmal Aortic Dilation in Patients with High Cardiovascular Risk. J Clin Med 2020; 9:jcm9092783. [PMID: 32872191 PMCID: PMC7565169 DOI: 10.3390/jcm9092783] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/20/2020] [Accepted: 08/26/2020] [Indexed: 12/25/2022] Open
Abstract
Patients with subaneurysmal aortic dilation (SAD; 25–29 mm diameter) are likely to progress to true abdominal aortic aneurysm (AAA). Despite these patients having a higher risk of all-cause mortality than subjects with aortic size <24 mm, early diagnostic biomarkers are lacking. MicroRNAs (miRs) are well-recognized potential biomarkers due to their differential expression in different tissues and their stability in blood. We have investigated whether a plasma miRs profile could identify the presence of SAD in high cardiovascular risk patients. Using qRT-PCR arrays in plasma samples, we determined miRs differentially expressed between SAD patients and patients with normal aortic diameter. We then selected 12 miRs to be investigated as biomarkers by construction of ROC curves. A total of 82 significantly differentially expressed miRs were found by qPCR array, and 12 were validated by qRT-PCR. ROC curve analyses showed that seven selected miRs (miR-28-3p, miR-29a-3p, miR-93-3p, miR-150-5p, miR-338-3p, miR-339-3p, and miR-378a-3p) could be valuable biomarkers for distinguishing SAD patients. MiR-339-3p showed the best sensitivity and specificity, even after combination with other miRs. Decreased miR-339-3p expression was associated with increased aortic abdominal diameter. MiR-339-3p, alone or in combination with other miRs, could be used for SAD screening in high cardiovascular risk patients, helping to the early diagnosis of asymptomatic AAA.
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Affiliation(s)
- Ana Torres-Do Rego
- Internal Medicine Service, HGU Gregorio Marañón, Instituto Investigación Sanitaria Gregorio Marañón (IiSGM), 28007 Madrid, Spain; (A.T.-D.R.); (M.B.); (L.A.Á.-S.)
| | - María Barrientos
- Internal Medicine Service, HGU Gregorio Marañón, Instituto Investigación Sanitaria Gregorio Marañón (IiSGM), 28007 Madrid, Spain; (A.T.-D.R.); (M.B.); (L.A.Á.-S.)
| | - Adriana Ortega-Hernández
- Vascular Biology Research Laboratory, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain; (A.O.-H.); (J.M.); (R.G.-G.)
| | - Javier Modrego
- Vascular Biology Research Laboratory, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain; (A.O.-H.); (J.M.); (R.G.-G.)
- Biomedical Research Networking Center in Cardiovascular Diseases (CIBERCV), 28029 Madrid, Spain;
| | - Rubén Gómez-Gordo
- Vascular Biology Research Laboratory, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain; (A.O.-H.); (J.M.); (R.G.-G.)
| | - Luis A. Álvarez-Sala
- Internal Medicine Service, HGU Gregorio Marañón, Instituto Investigación Sanitaria Gregorio Marañón (IiSGM), 28007 Madrid, Spain; (A.T.-D.R.); (M.B.); (L.A.Á.-S.)
- Department of Medicine, School of Medicine, Universidad Complutense, 28040 Madrid, Spain
| | - Victoria Cachofeiro
- Biomedical Research Networking Center in Cardiovascular Diseases (CIBERCV), 28029 Madrid, Spain;
- Department of Physiology, School of Medicine, Universidad Complutense and Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), 28040 Madrid, Spain
| | - Dulcenombre Gómez-Garre
- Vascular Biology Research Laboratory, Hospital Clínico San Carlos-Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain; (A.O.-H.); (J.M.); (R.G.-G.)
- Biomedical Research Networking Center in Cardiovascular Diseases (CIBERCV), 28029 Madrid, Spain;
- Correspondence: ; Tel.: +34-91-330-3000 (ext. 7769)
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8
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Maroun-Eid C, Ortega-Hernández A, Modrego J, Abad-Cardiel M, García-Donaire JA, Reinares L, Martell-Claros N, Gómez-Garre D. Effect of intensive multifactorial treatment on vascular progenitor cells in hypertensive patients. PLoS One 2018; 13:e0190494. [PMID: 29304136 PMCID: PMC5755814 DOI: 10.1371/journal.pone.0190494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 11/24/2017] [Indexed: 12/16/2022] Open
Abstract
Background Most hypertensive patients, despite a proper control of their cardiovascular risk factors, have cardiovascular complications, evidencing the importance of controlling and/or reversing target-organ damage. In this sense, endothelial dysfunction has been associated with the presence of cardiovascular risk factors and related cardiovascular outcomes. Since hypertension often clusters with other risk factors such as dyslipemia, diabetes and obesity, in this study we have investigated the effect of intensive multifactorial treatment on circulating vascular progenitor cell levels on high-risk hypertensive patients. Design We included108 hypertensive patients receiving intensive multifactorial pharmacologic treatment and dietary recommendations targeting blood pressure, dyslipemia, hyperglycemia and weight for 12 months. After the treatment period, blood samples were collected and circulating levels of endothelial (CD34+/KDR+, CD34+/VE-cadherin+) and smooth muscle (CD14+/endoglin+) progenitor cells were identified by flow cytometry. Additionally, plasma concentration of vascular endothelial growth factor (VEGF) was determined by ELISA. Results Most hypertensive patients (61±12 years, 47% men) showed cardiovascular parameters within normal ranges at baseline. Moreover, body mass index and the majority of the biochemical parameters (systolic and diastolic blood pressure, fasting glucose, total cholesterol, HDL-c, LDL-c, creatinine and hs-CRP) significantly decreased overtime. After 12 months of intensive treatment, CD34+/KDR+ and CD14+/endoglin+ levels did not change, but CD34+/VE-cadherin+ cells increased significantly at month 12 [0.9(0.05–0.14)% vs 0.05(0.02–0.09)% P<0.05]. However, VEGF plasma concentration decreased significantly overtime [89.1(53.9–218.7) vs [66.2(47.5–104.6) pg/mL, P<0.05]. Conclusions Long-term intensive treatment in hypertensive patients further improves cardiovascular risk and increases circulating EPCs, suggesting that these cells could be a therapeutic target.
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Affiliation(s)
- Charbel Maroun-Eid
- Unit of Hypertension, Área de Prevención Cardiovascular, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Adriana Ortega-Hernández
- Vascular Biology Research Laboratory, Hospital Clínico San Carlos-IdISSC, Madrid, Spain
- Biomedical Research Networking Center in Cardiovascular Diseases (CIBERCV), Madrid, Spain
| | - Javier Modrego
- Vascular Biology Research Laboratory, Hospital Clínico San Carlos-IdISSC, Madrid, Spain
| | - María Abad-Cardiel
- Unit of Hypertension, Área de Prevención Cardiovascular, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - José Antonio García-Donaire
- Unit of Hypertension, Área de Prevención Cardiovascular, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Leonardo Reinares
- Unit of Lipids, Área de Prevención Cardiovascular, Hospital Clínico San Carlos-IdISSC, Madrid, Spain
| | - Nieves Martell-Claros
- Unit of Hypertension, Área de Prevención Cardiovascular, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Dulcenombre Gómez-Garre
- Vascular Biology Research Laboratory, Hospital Clínico San Carlos-IdISSC, Madrid, Spain
- Biomedical Research Networking Center in Cardiovascular Diseases (CIBERCV), Madrid, Spain
- * E-mail:
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9
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Perez-Segura P, Zamorano-León JJ, Acosta D, Santos-Sancho JM, Modrego J, Caldés T, de la Hoya M, Díaz-Rubio E, Díaz-Millán I, de Las Heras N, Rico Zalba LA, Lahera V, Melander O, López Farré A. BRCA2 gene mutations and coagulation-associated biomarkers. Thromb Haemost 2015; 115:415-23. [PMID: 26446551 DOI: 10.1160/th15-06-0520] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 09/10/2015] [Indexed: 01/01/2023]
Abstract
Thromboembolic events are the second cause of death in cancer patients, although the mechanisms underlying this increased thromboembolic risk remain unclear. The aims of this study were to examine whether BRCA2 gene mutations may modify the circulating levels of thrombocoagulation biomarkers and whether breast cancer development may influence changes in such circulating biomarkers. The study was performed in 25 women with mutations in the BRCA2 gene (n=12 breast cancer, n=13 breast cancer-free) and in 13 BRCA2 non-mutant controls. Results revealed that plasma levels of fibrinogen gamma chain isotypes 2 and 3, haptoglobin isotypes 4 and 5, serotransferrin isotypes 3 and 4 and convertase C3/C5 isotypes 4 and 5 were significantly higher in BRCA2 mutation carriers compared to controls. However, plasma levels of vitamin D binding protein isotype 1 and alpha1-antitrypsin isotypes 2, 3 and 4 were significantly decreased in BRCA2 mutation carriers compared to controls. Plasma expression of PF4 and P-selectin was significantly higher in BRCA2 mutations carriers than in controls. BRCA2 truncated mutations conserving a binding region for RAD51 were associated with increased plasma levels of alpha1-antitrypsin isotypes 3 and 4 with respect to women showing BRCA2 mutations that loss the binding RD51 region to BRCA2. Only plasma levels of vitamin D binding protein isotypes 1 and 3 were significantly reduced and alpha 1-antitrypsin isotype 1 was increased in cancer-free BRCA2 mutation carriers compared to BRCA2 mutation carriers with breast cancer. The presence of BRCA2 mutations is associated with increased plasma levels of thrombo-coagulating-related proteins, which are independent to breast cancer development.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Antonio López Farré
- Antonio López Farré, Medicine Department, School of Medicine, Plaza Ramón y Cajal. SN, Universidad Complutense de Madrid, Madrid 28040, Spain, E-mail:
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10
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López-Farré AJ, Rodriguez-Sierra P, Modrego J, Segura A, Martín-Palacios N, Saiz AM, Zamorano-León JJ, Duarte J, Serrano J, Moñux G. Effects of factor Xa on the expression of proteins in femoral arteries from type 2 diabetic patients. Br J Clin Pharmacol 2015; 78:1366-77. [PMID: 25041869 DOI: 10.1111/bcp.12469] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 07/09/2014] [Indexed: 12/12/2022] Open
Abstract
AIM Further to its pivotal role in haemostasis, factor Xa (FXa) promotes effects on the vascular wall. The purpose of the study was to evaluate if FXa modifies the expression level of energy metabolism and oxidative stress-related proteins in femoral arteries obtained from type 2 diabetic patients with end-stage vasculopathy. METHODS Femoral arteries were obtained from 12 type 2 diabetic patients who underwent leg amputation. Segments from the femoral arteries were incubated in vitro alone and in the presence of 25 nmol l(-1) FXa and 25 nmol l(-1) FXa + 50 nmol l(-1) rivaroxaban. RESULTS In the femoral arteries, FXa increased triosephosphate isomerase and glyceraldehyde-3-phosphate dehydrogenase isotype 1 expression but decreased pyruvate dehydrogenase expression. These facts were accompanied by an increased content of acetyl-CoA. Aconitase activity was reduced in FXa-incubated femoral arteries as compared with control. Moreover, FXa increased the protein expression level of oxidative stress-related proteins which was accompanied by an increased malonyldialdehyde arterial content. The FXa inhibitor, rivaroxaban, failed to prevent the reduced expression of pyruvate dehydrogenase induced by FXa but reduced acetyl-CoA content and reverted the decreased aconitase activity observed with FXa alone. Rivaroxaban + FXa but not FXa alone increased the expression level of carnitine palmitoyltransferase I and II, two mitochondrial long chain fatty acid transporters. Rivaroxaban also prevented the increased expression of oxidative stress-related proteins induced by FXa alone. CONCLUSIONS In femoral isolated arteries from type 2 diabetic patients with end-stage vasculopathy, FXa promoted disruption of the aerobic mitochondrial metabolism. Rivaroxaban prevented such effects and even seemed to favour long chain fatty acid transport into mitochondria.
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Affiliation(s)
- Antonio J López-Farré
- Cardiovascular Research, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Facultad de Medicina, Universidad Complutense, Madrid, Spain
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11
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Melander O, Modrego J, Zamorano-León JJ, Santos-Sancho JM, Lahera V, López-Farré AJ. New circulating biomarkers for predicting cardiovascular death in healthy population. J Cell Mol Med 2015; 19:2489-99. [PMID: 26258425 PMCID: PMC4594690 DOI: 10.1111/jcmm.12652] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 06/08/2015] [Indexed: 01/09/2023] Open
Abstract
There is interest to analyse newer biomarkers to identify healthy individuals at risk to develop cardiovascular disease (CVD) incidents and death. To determine in healthy individuals new circulating protein biomarkers, whose systemic levels may be associated with the risk of future development of CVD incidents and death. The study was performed in 82 individuals from the Malmö Diet and Cancer study cohort, free from CVD of whom 41 developed CVD and 41 did not. Plasma proteins related to inflammation and thrombo-coagulating processes were analysed. α1-antitrypsin isotype 3 plasma levels were significantly higher while apolipoprotein J plasma levels were lower in participants that developed CVD incidents than those that did not develop acute cardiovascular episode. Of 82 participants, 17 died by CVD causes. There were proteins whose expression in plasma was significantly higher in participants suffering CVD death as compared with those that did not die by CVD. These proteins included: fibrinogen β-chain isotypes 1 and 3, fibrinogen-γ-chain isotype 2, vitamin D-binding protein isotypes 1, 2 and 3, α1-antitrypsin isotypes 3 and 6, haptoglobin isotypes 3,4,5 and 5, haemopexin isotypes 1 and 2, and Rho/Rac guanine nucleotide exchange factor 2. Moreover, apolipoprotein J plasma levels were found lower in participants that died by cardiovascular cause. Association between plasma levels of proteins and CVD death was independent of age, gender, conventional risk factors and plasma C-reactive protein levels. Several protein plasma levels and protein isotypes related to inflammation and thrombo-coagulating phenomena were independently associated with the risk of future CVD death.
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Affiliation(s)
- Olle Melander
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Javier Modrego
- Instituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Jose J Zamorano-León
- Instituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Juana M Santos-Sancho
- Department of Preventive Medicine and Public Health, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Vicente Lahera
- Instituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain.,Department of Physiology, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Antonio J López-Farré
- Instituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain.,Department of Medicine, School of Medicine, Universidad Complutense, Madrid, Spain
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12
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Farré AL, Modrego J, Zamorano-León JJ. Effects of hormones on platelet aggregation. Horm Mol Biol Clin Investig 2015; 18:27-36. [PMID: 25389998 DOI: 10.1515/hmbci-2013-0055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Accepted: 11/14/2013] [Indexed: 11/15/2022]
Abstract
Platelets and their activation/inhibition mechanisms play a central role in haemostasis. It is well known agonists and antagonists of platelet activation; however, during the last years novel evidences of hormone effects on platelet activation have been reported. Platelet functionality may be modulated by the interaction between different hormones and their platelet receptors, contributing to sex differences in platelet function and even in platelet-mediated vascular damage. It has suggested aspects that apparently are well established should be reviewed. Hormones effects on platelet activity are included among them. This article tries to review knowledge about the involvement of hormones in platelet biology and activity.
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13
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López-Ibarra Z, Modrego J, Valero-Muñoz M, Rodríguez-Sierra P, Zamorano-León JJ, González-Cantalapiedra A, de Las Heras N, Ballesteros S, Lahera V, López-Farré AJ. Metabolic differences between white and brown fat from fasting rabbits at physiological temperature. J Mol Endocrinol 2015; 54:105-13. [PMID: 25701828 DOI: 10.1530/jme-14-0255] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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] [Indexed: 12/21/2022]
Abstract
It has been suggested that activated brown adipose tissue (BAT) shows increased glucose metabolic activity. However, less is known about metabolic activity of BAT under conditions of fasting and normal temperature. The aim of this study was to compare the possible differences in energetic metabolism between BAT and white adipose tissue (WAT) obtained from rabbits under the conditions of physiological temperature and 24 h after fasting conditions. The study was carried out on New Zealand rabbits (n=10) maintained for a period of 8 weeks at 23±2 °C. Food was removed 24 h before BAT and WAT were obtained. Protein expression levels of the glycolytic-related protein, glyceraldehyde-3-phosphate dehydrogenase, and pyruvate dehydrogenase were higher in WAT than that in BAT. The expression level of carnitine palmitoyltransferase 1 (CPT1) and CPT2, two fatty acid mitochondrial transporters, and the fatty acid β-oxidation-related enzyme, acyl CoA dehydrogenase, was higher in BAT than in WAT. Cytosolic malate dehydrogenase expression and malate dehydrogenase activity were higher in WAT than in BAT. However, lactate dehydrogenase expression and lactate content were significantly higher in BAT than in WAT. In summary, this study for the first time, to our knowledge, has described how under fasting and normal temperature conditions rabbit BAT seems to use anaerobic metabolism to provide energetic fuel, as opposed to WAT, where the malate-aspartate shuttle and, therefore, the gluconeogenic pathway seem to be potentiated.
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Affiliation(s)
- Z López-Ibarra
- Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - J Modrego
- Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - M Valero-Muñoz
- Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - P Rodríguez-Sierra
- Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - J J Zamorano-León
- Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - A González-Cantalapiedra
- Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - N de Las Heras
- Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - S Ballesteros
- Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - V Lahera
- Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - A J López-Farré
- Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain Surgery DepartmentHospital Universitario ROF-Codina, Lugo, SpainInstituto de Investigacion Sanitaria del Hospital Clínico San Carlos (IdISSC)Madrid, SpainDepartments of PhysiologyMedicineSchool of Medicine, Universidad Complutense de Madrid, Madrid 28040, Spain
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14
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López-Farré AJ, Modrego J, Azcona L, Guerra R, Segura A, Rodríguez P, Zamorano-León JJ, Lahera V, Macaya C. Nitric oxide from mononuclear cells may be involved in platelet responsiveness to aspirin. Eur J Clin Invest 2014; 44:463-9. [PMID: 24571196 DOI: 10.1111/eci.12252] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [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: 10/04/2013] [Accepted: 02/24/2014] [Indexed: 12/27/2022]
Abstract
BACKGROUND Several mechanisms have been proposed to explain why some platelets have a reduced response to aspirin (ASA). Among them, it was reported an increased circulating level of vitamin-D-binding protein (DBP). In addition, nitric oxide (NO) released from mononuclear cells was involved in the antiplatelet effects of ASA. The aim was to analyse the relationship between platelet response to ASA and both NO generation and vitamin-D-binding protein content in mononuclear cells. MATERIALS AND METHODS Mononuclear cells were obtained from patients with stable coronary artery disease that were divided by a platelet functionality test (PFA-100) as ASA-sensitive (n=23) and ASA resistant (n=27). RESULTS Both the release of NO (determined by nitrite+nitrate concentration) and the expression of endothelial-type NO synthase (eNOS) were higher in mononuclear cells from ASA sensitive as compared with those from ASA-resistant patients. There was a positive correlation between either the release of NO and the expression of eNOS protein in mononuclear cells with the ability of ASA to inhibit platelet activity. DBP content in mononuclear cells was higher in ASA resistant than in ASA sensitive. The level of DBP content in mononuclear cells was negatively associated with the ability of ASA to inhibit platelets. However, in vitro experiments suggested that there was no association between DBP and NO production by mononuclear cells. CONCLUSIONS Mononuclear cells from patients with platelets with lower responsiveness to ASA showed a reduced ability to produce NO.
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Affiliation(s)
- Antonio J López-Farré
- Cardiovascular Research Unit, Cardiology Department of Hospital Clínico San Carlos de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Medicine School, Complutense University, Madrid, Spain
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15
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Modrego J, Azcona L, Martín-Palacios N, Zamorano-León JJ, Segura A, Rodríguez P, Guerra R, Tamargo J, Macaya C, López-Farré AJ. Platelet content of nitric oxide synthase 3 phosphorylated at Serine 1177 is associated with the functional response of platelets to aspirin. PLoS One 2013; 8:e82574. [PMID: 24376548 PMCID: PMC3869699 DOI: 10.1371/journal.pone.0082574] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 10/24/2013] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE To analyse if platelet responsiveness to aspirin (ASA) may be associated with a different ability of platelets to generate nitric oxide (NO). PATIENTS/METHODS Platelets were obtained from 50 patients with stable coronary ischemia and were divided into ASA-sensitive (n = 26) and ASA-resistant (n = 24) using a platelet functionality test (PFA-100). RESULTS ASA-sensitive platelets tended to release more NO (determined as nitrite + nitrate) than ASA-resistant platelets but it did not reach statistical significance. Protein expression of nitric oxide synthase 3 (NOS3) was higher in ASA-sensitive than in ASA-resistant platelets but there were no differences in the platelet expression of nitric oxide synthase 2 (NOS2) isoform. The highest NOS3 expression in ASA-sensitive platelets was independent of the presence of T-to-C mutation at nucleotide position -786 (T(-786) → C) in the NOS3-coding gene. However, platelet content of phosphorylated NOS3 at Serine (Ser)(1177), an active form of NOS3, was higher in ASA-sensitive than in ASA-resistant platelets. The level of platelet NOS3 Ser(1177) phosphorylation was positively associated with the closure time in the PFA-100 test. In vitro, collagen failed to stimulate the aggregation of ASA-sensitive platelets, determined by lumiaggregometry, and it was associated with a significant increase (p = 0.018) of NOS3 phosphorylation at Ser(1177). On the contrary, collagen stimulated the aggregation of ASA-resistant platelets but did not significantly modify the platelet content of phosphorylated NOS3 Ser(1177). During collagen stimulation the release of NO from ASA-sensitive platelets was significantly enhanced but it was not modified in ASA-resistant platelets. CONCLUSIONS Functional platelet responsiveness to ASA was associated with the platelet content of phosphorylated NOS3 at Ser(1177).
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Affiliation(s)
- Javier Modrego
- Cardiovascular Research Unit, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Luis Azcona
- Cardiovascular Research Unit, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
- Hemodynamic Unit, Cardiology Department, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Naiara Martín-Palacios
- Cardiovascular Research Unit, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - José J. Zamorano-León
- Cardiovascular Research Unit, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Antonio Segura
- Health Science Institute, Talavera de la Reina, Toledo, Spain
| | - Pablo Rodríguez
- Cardiovascular Research Unit, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Reddy Guerra
- Hemodynamic Unit, Cardiology Department, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Juan Tamargo
- Pharmacology Department, School of Medicine, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Universidad Complutense de Madrid, Madrid, Spain
| | - Carlos Macaya
- Cardiovascular Research Unit, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
- Hemodynamic Unit, Cardiology Department, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Antonio J. López-Farré
- Cardiovascular Research Unit, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
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Zamorano-León JJ, Olivier C, de Las Heras N, Mateos-Cáceres PJ, Brime Menéndez R, Rodríguez-Sierra P, Martín Palacios N, Manso LSJ, Modrego J, Segura A, Macaya C, López-Farré AJ. Vardenafil improves penile erection in type 2 diabetes mellitus patients with erectile dysfunction: role of tropomyosin. J Sex Med 2013; 10:3110-20. [PMID: 24112450 DOI: 10.1111/jsm.12324] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
INTRODUCTION Evidences have been suggested that phosphodiesterase type 5 (PDE5) inhibition promotes vasculoprotective benefits in patients with cardiovascular diseases. AIM The aim of this study is to analyze the systemic effect of PDE5 inhibition in type 2 diabetes mellitus patients with erectile dysfunction (ED) determining changes in the expression levels of plasma proteins. METHODS Seventeen patients with controlled type 2 diabetes mellitus and ED were included in the study. Patients received vardenafil hydrochloride 20 mg on demand during 12 weeks. At the beginning and 12 weeks after vardenafil administration, plasma samples were collected and analyzed using proteomics. MAIN OUTCOME MEASURES International Index of Erectile Function-Erectile Function Domain (IIEF-EFD) and plasma protein expression before and after vardenafil administration. Nitrate/nitrite release, PDE5, and soluble guanylate cyclase (sGC) expression and cyclic guanosine monophosphate (cGMP) content in cultured bovine aortic endothelial cells (BAECs). RESULTS The IIEF-EFD score was markedly improved after 12 weeks of vardenafil administration. Plasma levels of alpha 1-antitrypsin isotypes 4 and 6 and β-tropomyosin were decreased, whereas apolipoprotein AI isoype 5 was increased 12 weeks after vardenafil administration. Only β-tropomyosin plasma levels were inversely correlated with IIEF-EFD score. Tropomyosin has been added to cultured BAECs and after 24 hours reduced the protein expression level of sGC-β1 subunit and decreased the cGMP content. Tropomyosin did not modify PDE5 expression and nitric oxide release in BAECs as compared with control BAECs. Vardenafil (10 μg/mL) did not modify sGC-β1 subunit expression in tropomyosin + vardenafil-incubated BAECs; however, vardenafil significantly reversed the reduction of cGMP content induced by tropomyosin. CONCLUSION Vardenafil administration improved erectile functionality in controlled type 2 diabetes mellitus patients with ED, which was associated with reduction of circulating plasma β-tropomyosin levels. Tropomyosin affected by itself the cGMP generating system suggesting a possible new mechanism involved in ED. Vardenafil reversed the reduction effect of cGMP content elicited by tropomyosin in BAECs.
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Affiliation(s)
- Jose J Zamorano-León
- Cardiovascular Research Unit, Cardiology Department of Hospital Clínico San Carlos de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
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Zamorano-León JJ, López-Farré AJ, Marques M, Rodríguez P, Modrego J, Segura A, Macaya C, Barrientos A. Changes by tacrolimus of the rat aortic proteome: Involvement of endothelin-1. Transpl Immunol 2012; 26:191-200. [DOI: 10.1016/j.trim.2012.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 01/03/2012] [Accepted: 02/02/2012] [Indexed: 01/31/2023]
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López-Farré AJ, Zamorano-León JJ, Segura A, Mateos-Cáceres PJ, Modrego J, Rodríguez-Sierra P, Calatrava L, Tamargo J, Macaya C. Plasma desmoplakin I biomarker of vascular recurrence after ischemic stroke. J Neurochem 2012; 121:314-25. [DOI: 10.1111/j.1471-4159.2012.07683.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Modrego J, López-Farré AJ, Martínez-López I, Muela M, Macaya C, Serrano J, Moñux G. Expression of cytoskeleton and energetic metabolism-related proteins at human abdominal aortic aneurysm sites. J Vasc Surg 2012; 55:1124-33. [PMID: 22226179 DOI: 10.1016/j.jvs.2011.10.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 10/11/2011] [Accepted: 10/12/2011] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate the expression of proteins related to cytoskeleton and energetic metabolism at abdominal aortic aneurysm (AAA) sites using proteomics. Several remodeling-related mechanisms have been associated with AAA formation but less is known about the expression of proteins associated with cytoskeleton and energetic metabolism in AAAs. METHODS AAA samples (6.73 ± 0.40 cm size) were obtained from 13 patients during elective aneurysm repair. Control abdominal aortic samples were obtained from 12 organ donors. Proteins were analyzed using two-dimensional electrophoresis and mass spectrometry. RESULTS The expression of filamin was increased in the AAA site compared to control abdominal aortic samples while microfibril-associated glycoprotein-4 isotype 1, annexin A5 isotype 1, and annexin A2 were reduced compared with control abdominal aortic samples. Reduction in expression level of energetic metabolism-associated proteins such as triosephosphate isomerase, glyceraldehyde 3-phosphate dehydrogenase, and cytosolic aldehyde dehydrogenase was also observed in AAAs compared to controls. Reduction of triosephosphate isomerase expression was also observed by Western blot, which was accompanied by diminished triosephosphate isomerase activity. At the AAA site, pyruvate dehydrogenase expression was reduced and the content of both lactate and pyruvate was increased with respect to controls without changes in lactate dehydrogenase activity. CONCLUSIONS The present results suggest that an anaerobic metabolic state may be favored further to reduce the expression of cytoskeleton-related proteins. The better knowledge of molecular mechanism involved in AAAs may favor development of new clinical strategies.
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Affiliation(s)
- Javier Modrego
- Cardiovascular Research Unit of the Cardiology Department, Cardiovascular Institute, Hospital Clínico San Carlos, San Carlos, Madrid, Spain
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López-Farré AJ, Zamorano-Leon JJ, Azcona L, Modrego J, Mateos-Cáceres PJ, González-Armengol J, Villarroel P, Moreno-Herrero R, Rodríguez-Sierra P, Segura A, Tamargo J, Macaya C. Proteomic changes related to “bewildered” circulating platelets in the acute coronary syndrome. Proteomics 2011; 11:3335-48. [DOI: 10.1002/pmic.201000708] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Revised: 05/09/2011] [Accepted: 05/12/2011] [Indexed: 11/11/2022]
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Modrego J, Moñux G, Mateos-Cáceres PJ, Martínez-López I, Segura A, Zamorano-León JJ, Rodríguez-Sierra P, Serrano J, Macaya C, López-Farré AJ. Effects of platelets on the protein expression in aortic segments: A proteomic approach. J Cell Biochem 2010; 111:889-98. [DOI: 10.1002/jcb.22777] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Modrego J, Maroto L, Tamargo J, Azcona L, Mateos-Cáceres P, Segura A, Moreno-Herrero R, Pérez-Castellanos N, Delpón E, Pérez-Villacastín J, Rodríguez E, Macaya C, López-Farré AJ. Comparative expression of proteins in left and right atrial appendages from patients with mitral valve disease at sinus rhythm and atrial fibrillation. J Cardiovasc Electrophysiol 2010; 21:859-68. [PMID: 20132404 DOI: 10.1111/j.1540-8167.2010.01718.x] [Citation(s) in RCA: 15] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The objective was to compare by proteomics the expression of proteins associated with the cytoskeleton, energetic metabolism, and cardiac cytoprotection between left atrial appendages (LAA) and right atrial appendages (RAA) obtained from patients with mitral valve disease both in sinus rhythm (SR, n = 6) and in permanent atrial fibrillation (AF, n = 11). METHODS AND RESULTS Samples from RAA and LAA were obtained from the same patient. Proteins were separated in 2-dimensional electrophoresis and identified by mass spectrometry. LAA from SR patients upexpressed alpha-actin isotype 1 and desmin isotypes 3 and 5 with respect to RAA. In LAA from AF patients were upexpressed cardiac alpha-actin isotypes 1 and 2, tropomyosin alpha- and beta-chains, and myosin light chain embryonic muscle/atrial isoform with respect to LAA from SR patients. In RAA from AF patients also upexpressed different cytoskeleton associated proteins with respect to RAA from SR patients. Different energetic metabolism-associated proteins were upexpressed in LAA and RAA from AF with respect those from SR patients. In AF patients, the expression of proteins associated with cardiac cytoprotection such as gluthatione-S-transferase, heat shock protein (Hsp) 27, and different Hsp60 isotypes, were higher in RAA but not in LAA with respect to the corresponding appendages in SR patients. CONCLUSIONS For each individual patient RAA and LAA showed a similar level of proteins expressed associated with cytoskeleton, energetic metabolism, and cardiac cytoprotection. There were more differences in the level of proteins associated with the above-mentioned mechanisms between the atrial appendages from AF with respect to SR patients, which may open new targets for drugs.
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Affiliation(s)
- Javier Modrego
- Cardiovascular Research Unit, Hospital Clínico San Carlos, Madrid, Spain
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Zamorano-León JJ, Modrego J, Mateos-Cáceres PJ, Macaya C, Martín-Fernández B, Miana M, de las Heras N, Cachofeiro V, Lahera V, López-Farré AJ. A proteomic approach to determine changes in proteins involved in the myocardial metabolism in left ventricles of spontaneously hypertensive rats. Cell Physiol Biochem 2010; 25:347-58. [PMID: 20110695 DOI: 10.1159/000276567] [Citation(s) in RCA: 20] [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] [Accepted: 10/29/2009] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Different works have suggested that in the hypertrophied heart the energy metabolic pathway shifts to glycolysis. Our aim was to evaluate using proteomics the expression of proteins associated with different energetic metabolic pathways in hypertrophied left ventricles of spontaneously hypertensive rats (SHR). METHODS 24-weeks-old SHR with stable hypertension and established left ventricle hypertrophy were used. Normotensive Wistar Kyoto rats were used as control. Proteins from left ventricles were analyzed by 2-dimensional electrophoresis and identified by comparison with a virtual rat heart proteomic map and mass spectrometry. RESULTS Enoyl-CoA hydratase expression, an enzyme involved in fatty acid beta-oxidation, was reduced whereas the expression of other beta-oxidation enzymes, 3-ketoacyl-CoA thiolase and the mitochondrial precursor of acyl-CoA thioester hydrolase, was increased in the hypertrophied left ventricles. The expression of two enzymes involved in the first steps of glycolysis, fructose bisphosphate aldolase and triosephosphate isomerase, was reduced in the left ventricle of SHR. Pyruvate dehydrogenase expression, enzyme involved in glucose oxidation, was enhanced in the hypertrophied ventricles whereas proteins of the tricarboxylic acid cycle were not modified. Proteins involved in the mitochondrial oxidative phosphorylation were overexpressed whereas the alpha-subunit of the mitochondrial precursor of ATP synthase was downexpressed. CONCLUSIONS Several proteins involved in the main energy metabolic pathways were up and downexpressed. Moreover, our results seem to suggest that probably neither fatty acid beta-oxidation nor glycolysis are the only sources for energy in the hypertrophied left ventricle.
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Affiliation(s)
- Jose J Zamorano-León
- Cardiovascular Research Unit, Cardiovascular Institute, Hospital Clínico San Carlos and School of Medicine, Complutense University, 28040 Madrid, Spain
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Mateos-Cáceres PJ, Macaya C, Azcona L, Modrego J, Mahillo E, Bernardo E, Fernandez-Ortiz A, López-Farré AJ. Different expression of proteins in platelets from aspirin-resistant and aspirin-sensitive patients. Thromb Haemost 2009; 103:160-70. [PMID: 20062920 DOI: 10.1160/th09-05-0290] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Accepted: 10/19/2009] [Indexed: 11/05/2022]
Abstract
The aim of the present study was to analyse differences in the protein expression profile between platelets from aspirin (ASA)-resistant patients and ASA-sensitive patients. We analysed platelets from 51 clinically stable coronary ischaemic patients taking ASA (100 mg/day) divided into ASA-resistant (n=25) and ASA-sensitive (n=26) based on a platelet functionality test (PFA-100). Proteins associated with cytoskeleton, energetic metabolism, oxidative stress, inflammation and cell survival were analysed by two-dimensional electrophoresis and mass spectrometry. The expression of two gelsolin precursor isotypes and one F-acting capping protein isotype was decreased in ASA-resistant platelets (p<0.05). The expression of glyceraldehyde 3-phosphate dehydrogenase was increased in the ASA-resistant platelets (1751.1 + or - 220.6 vs. 4273.3 + or - 971.7, 95% confidence interval [CI] 1815.11 to 4061.2, p=0.001). It was accompanied by a reduced expression and activity of 1,6-bisphosphate aldolase in platelets without changes in the content of pyruvate. A reduced expression of gluthathione-S-transferase and the protein disulfide isomerase isotype 1 was found in ASA-resistant platelets. The protein expression of the chloride intracellular channel isotype 1 was increased in ASA-resistant platelets (21.3 + or - 3.8 vs. 48.8 + or - 6.0, CI 29.5 to 45.95, p=0.03) while the expression of two HSP60 and two HSP71 isotypes was decreased. No changes were observed in proteins associated with inflammation. In conclusion, ASA-resistant and ASA-sensitive platelets are different in terms of the level of expression of proteins associated with mechanisms such as energetic metabolism, cytoskeleton, oxidative stress and cell survival which may be associated with their different ability to respond to ASA.
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Affiliation(s)
- Petra J Mateos-Cáceres
- Cardiovascular Research Unit, Cardiology Department and Cardiovascular Institute, Hospital Clínico San Carlos, Madrid, Spain
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Esteruelas MA, Lahuerta O, Modrego J, Nuernberg O, Oro LA, Rodriguez L, Sola E, Werner H. Synthesis, characterization, and reactivity of rhodium carboxylate dimers [Rh(.mu.-OOCCR3)(CO)(PCy3)]2 (R = H, F). X-ray crystal structure of [Rh2(.mu.-OOCCH3)(.mu.-.eta.1:.eta.2-C2Ph)(CO)2(PCy3)2]. Organometallics 2002. [DOI: 10.1021/om00026a009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Esteruelas MA, Garcia MP, Lahoz FJ, Martin M, Modrego J, Onate E, Oro LA. Synthesis and Characterization of New Hydridoiridium Complexes Containing Carboxylate Ligands. Inorg Chem 2002. [DOI: 10.1021/ic00094a007] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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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Baya M, Crochet P, Esteruelas MA, López AM, Modrego J, Oñate E. Formation of Cationic Half-Sandwich Osmium−Vinylidene Complexes from [Os(η5-C5H5)(PiPr3)2]+ and Terminal Alkynes. Organometallics 2001. [DOI: 10.1021/om0104565] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miguel Baya
- Departamento de Química Inorgánica-Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Pascale Crochet
- Departamento de Química Inorgánica-Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica-Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Ana M. López
- Departamento de Química Inorgánica-Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Javier Modrego
- Departamento de Química Inorgánica-Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica-Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
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Baya M, Crochet P, Esteruelas MA, Gutiérrez-Puebla E, López AM, Modrego J, Oñate E, Vela N. Synthesis and Characterization of Hydride−Alkynyl, Allenylidene, Carbyne, and Functionalized-Alkynyl Complexes Containing the [Os(η5-C5H5)(PiPr3)2]+Fragment: The Complex [Os(η5-C5H5)(CCCPh2)(PiPr3)2]PF6, a New Type of Allenylidene Derivative from the Reactivity Point of View. Organometallics 2000. [DOI: 10.1021/om000141+] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Carmona D, Ferrer J, Arilla JM, Reyes J, Lahoz FJ, Elipe S, Modrego J, Oro LA. Different Reactivity Patterns in Dinuclear Pyrazolate-Bridged Complexes: Stereoselective Formation of Ketonic Carbonyls. Eur J Inorg Chem 2000. [DOI: 10.1002/(sici)1099-0682(200001)2000:1<159::aid-ejic159>3.0.co;2-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Bernad DJ, Esteruelas MA, López AM, Modrego J, Puerta MC, Valerga P. Addition of Secondary and Primary Amines to the Allenylidene Ligand of [Ru(η5-C5H5)(CCCPh2)(CO)(PiPr3)]BF4: Synthesis of Azoniabutadienyl, Aminoallenyl, and Azabutadienyl Derivatives of Ruthenium(II). Organometallics 1999. [DOI: 10.1021/om9904706] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- D. Javier Bernad
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Departamento de Ciencia de Materiales e Ingeniería Metalúrgica y Química Inorgánica, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Departamento de Ciencia de Materiales e Ingeniería Metalúrgica y Química Inorgánica, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
| | - Ana M. López
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Departamento de Ciencia de Materiales e Ingeniería Metalúrgica y Química Inorgánica, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
| | - Javier Modrego
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Departamento de Ciencia de Materiales e Ingeniería Metalúrgica y Química Inorgánica, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
| | - M. Carmen Puerta
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Departamento de Ciencia de Materiales e Ingeniería Metalúrgica y Química Inorgánica, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
| | - Pedro Valerga
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Departamento de Ciencia de Materiales e Ingeniería Metalúrgica y Química Inorgánica, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
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Castillo A, Barea G, Esteruelas MA, Lahoz FJ, LLedós A, Maseras F, Modrego J, Oñate E, Oro LA, Ruiz N, Sola E. Thermally Activated Site Exchange and Quantum Exchange Coupling Processes in Unsymmetrical Trihydride Osmium Compounds. Inorg Chem 1999; 38:1814-1824. [PMID: 11670952 DOI: 10.1021/ic9804061] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of the hexahydride complex OsH(6)(P(i)Pr(3))(2) (1) with pyridine-2-thiol leads to the trihydride derivative OsH(3){kappa-N,kappa-S-(2-Spy)}(P(i)Pr(3))(2) (2). The structure of 2 has been determined by X-ray diffraction. The geometry around the osmium atom can be described as a distorted pentagonal bipyramid with the phosphine ligands occupying axial positions. The equatorial plane contains the pyridine-2-thiolato group, attached through a bite angle of 65.7(1) degrees, and the three hydride ligands. The theoretical structure determination of the model complex OsH(3){kappa-N,kappa-S-(2-Spy)}(PH(3))(2) (2a) reveals that the hydride ligands form a triangle with sides of 1.623, 1.714, and 2.873 Å, respectively. A topological analysis of the electron density of 2a indicates that there is no significant electron density connecting the hydrogen atoms of the OsH(3) unit. In solution, the hydride ligands of 2 undergo two different thermally activated site exchange processes, which involve the central hydride with each hydride ligand situated close to the donor atoms of the chelate group. The activation barriers of both processes are similar. Theoretical calculations suggest that the transition states have a cis-hydride-dihydrogen nature. In addition to the thermally activated exchange processes, complex 2 shows quantum exchange coupling between the central hydride and the one situated close to the sulfur atom of the pyridine-2-thiolato group. The reactions of 1 with L-valine and 2-hydroxypyridine afford OsH(3){kappa-N,kappa-O-OC(O)CH[CH(CH(3))(2)]NH(2)}(P(i)Pr(3))(2) (3) and OsH(3){kappa-N,kappa-O-(2-Opy)}(P(i)Pr(3))(2) (4) respectively, which according to their spectroscopic data have a similar structure to that of 2. In solution, the hydride ligands of 3 and 4 also undergo two different thermally activated site exchange processes. However, they do not show quantum exchange coupling. The tetranuclear complexes [(P(i)Pr(3))(2)H(3)Os(&mgr;-biim)M(TFB)](2) [M = Rh (5), Ir (6); H(2)biim = 2, 2'-biimidazole; TFB = tetrafluorobenzobarrelene] have been prepared by reaction of OsH(3)(Hbiim)(P(i)Pr(3))(2) with the dimers [M(&mgr;-OMe)(TFB)](2) (M = Rh, Ir). In solution the hydride ligands of these complexes, which form two chemically equivalent unsymmetrical OsH(3) units, undergo two thermally activated site exchanges and show two different quantum exchange coupling processes.
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Affiliation(s)
- Amaya Castillo
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Unitat de Química Física, Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
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Buil ML, Esteruelas MA, Modrego J, Oñate E. Synthesis and characterization of (PPr3i)2(CO)HRu(μ-H)- (μ-OMe)Ir(cod): an unusual example of a heterometallic complex containing a mixed hydrido–alkoxide bridge. NEW J CHEM 1999. [DOI: 10.1039/a809943j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Esteruelas MA, Gómez AV, López AM, Modrego J, Oñate E. Regioselective Addition of PRPh2 to the Cα Atom of the Diphenylallenylidene Ligand of [Ru(η5-C5H5)(CCCPh2)(CO)(PPri3)]BF4. Organometallics 1998. [DOI: 10.1021/om980577d] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Angel V. Gómez
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Ana M. López
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Javier Modrego
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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Esteruelas MA, Gómez AV, López AM, Modrego J, Oñate E. Addition of Carbon Nucleophiles to the Allenylidene Ligand of [Ru(η5-C5H5)(CCCPh2)(CO)(PiPr3)]BF4: Synthesis of New Organic Ligands by Formal C−C Coupling between Mutually Inert Fragments. Organometallics 1997. [DOI: 10.1021/om9708539] [Citation(s) in RCA: 109] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Angel V. Gómez
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Ana M. López
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Javier Modrego
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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Tejel C, Shi YM, Ciriano MA, Edwards AJ, Lahoz FJ, Modrego J, Oro LA. A Way to Novel Heterometallic Raft-like Clusters from Neutral Precursors. J Am Chem Soc 1997. [DOI: 10.1021/ja963557g] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cristina Tejel
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-C.S.I.C., E-50009 Zaragoza, Spain
| | - You-Mao Shi
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-C.S.I.C., E-50009 Zaragoza, Spain
| | - Miguel A. Ciriano
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-C.S.I.C., E-50009 Zaragoza, Spain
| | - Andrew J. Edwards
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-C.S.I.C., E-50009 Zaragoza, Spain
| | - Fernando J. Lahoz
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-C.S.I.C., E-50009 Zaragoza, Spain
| | - Javier Modrego
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-C.S.I.C., E-50009 Zaragoza, Spain
| | - Luis A. Oro
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-C.S.I.C., E-50009 Zaragoza, Spain
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Edwards AJ, Esteruelas MA, Lahoz FJ, Modrego J, Oro LA, Schrickel J. Synthesis, Structure, and Bonding of the Unusual μ-σ,σ-Allenylidene Complex [Rh2(μ-OOCCH3)(μ-σ,σ-CCCPh2)(CO)2(PCy3)2]BF4. Organometallics 1996. [DOI: 10.1021/om960164h] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew J. Edwards
- Departamento de Química Inorgánica, Instituto de Ciencias de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Ciencias de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Fernando J. Lahoz
- Departamento de Química Inorgánica, Instituto de Ciencias de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Javier Modrego
- Departamento de Química Inorgánica, Instituto de Ciencias de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Luis A. Oro
- Departamento de Química Inorgánica, Instituto de Ciencias de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Jörg Schrickel
- Departamento de Química Inorgánica, Instituto de Ciencias de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
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Bakhmutov VI, Bertrán J, Esteruelas MA, Lledós A, Maseras F, Modrego J, Oro LA, Sola E. Dynamic Behavior in Solution of theTrans-Hydridodihydrogen Complex [OsHCl(n2-H2)(CO)(PiPr3)2]: Ab Initio and NMR Studies. Chemistry 1996. [DOI: 10.1002/chem.19960020714] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Buil ML, Espinet P, Esteruelas MA, Lahoz FJ, Lledós A, Martínez-Ilarduya JM, Maseras F, Modrego J, Oñate E, Oro LA, Sola E, Valero C. Oxidative Addition of Group 14 Element Hydrido Compounds to OsH(2)(eta(2)-CH(2)=CHEt)(CO)(P(i)Pr(3))(2): Synthesis and Characterization of the First Trihydrido-Silyl, Trihydrido-Germyl, and Trihydrido-Stannyl Derivatives of Osmium(IV). Inorg Chem 1996; 35:1250-1256. [PMID: 11666315 DOI: 10.1021/ic9509591] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The dihydrido-olefin complex OsH(2)(eta(2)-CH(2)=CHEt)(CO)(P(i)Pr(3))(2) (2) reacts with H(2)SiPh(2) to give OsH(3)(SiHPh(2))(CO)(P(i)Pr(3))(2) (3). The molecular structure of 3 has been determined by X-ray diffraction (monoclinic, space group P2(1)/c with a = 16.375(2) Å, b = 11.670(1) Å, c =18.806(2) Å, beta = 107.67(1) degrees, and Z = 4) together with ab initio calculations on the model compound OsH(3)(SiH(3))(CO)(PH(3))(2). The coordination geometry around the osmium center can be rationalized as a heavily distorted pentagonal bipyramid with one hydrido ligand and the carbonyl group in the axial positions. The two other hydrido ligands lie in the equatorial plane, one between the phosphine ligands and the other between the SiHPh(2) group and one of the phosphine ligands. Complex 3 can also be prepared by reaction of OsH(eta(2)-H(2)BH(2))(CO)(P(i)Pr(3))(2) (4) with H(2)SiPh(2). Similarly, the treatment of 4 with HSiPh(3) affords OsH(3)(SiPh(3))(CO)(P(i)Pr(3))(2) (5), while the addition of H(3)SiPh to 4 in methanol yields OsH(3){Si(OMe)(2)Ph}(CO)(P(i)Pr(3))(2) (6). Complex 2 also reacts with HGeR(3) and HSnR(3) to give OsH(3)(GeR(3))(CO)(P(i)Pr(3))(2) (GeR(3) = GeHPh(2) (7), GePh(3) (8), GeEt(3) (9)) and OsH(3)(SnR(3))(CO)(P(i)Pr(3))(2) (R = Ph (10), (n)Bu (11)), respectively. In solution, compounds 3 and 5-11 are fluxional and display similar (1)H and (31)P{(1)H} NMR spectra, suggesting that they possess a similar arrangement of ligands around the osmium atom.
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Affiliation(s)
- María L. Buil
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain, Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47005 Valladolid, Spain, and Unitat de Química Física, Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
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Carmona D, Lamata MP, Ferrer J, Modrego J, Perales M, Lahoz FJ, Atencio R, Oro LA. Synthesis, characterization and molecular structure of the hydroperoxo complex [(η5C5Me5)Ir(µ-pz)3Rh(OOH)(dppe)][BF4]; Hpz = pyrazole, dppe β 1,2-bis(diphenylphosphino)ethane. ACTA ACUST UNITED AC 1994. [DOI: 10.1039/c39940000575] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fernandez MJ, Modrego J, Rodriguez MJ, Santamaria M, Oro LA. Carbon monoxide activation in [Ir(HBPz3)(CO)2]: Formation of carbamoyl complexes by direct reaction with amines. J Organomet Chem 1992. [DOI: 10.1016/0022-328x(92)80199-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Fernández MJ, Modrego J, Lahoz FJ, López JA, Oro LA. Oxidative addition of I2, MeI, and CH2I2to the naphthalene-1,8-diamide bridged complex [Ir2{µ-1,8-(NH)2C10H6}(CO)2(PPh3)2]. X-Ray crystal structure of [Ir2I2(µ-CH2){µ-1,8-(NH)2C10H6}(CO)2(PPh3)2]·CH2Cl2. ACTA ACUST UNITED AC 1990. [DOI: 10.1039/dt9900002587] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fernandez MJ, Modrego J, Oro LA, Apreda MC, Cano FH, Foces-Foces C. Amides of rhodium and iridium derived from 2-aminothiophenol and diaminonaphthalene: X-ray crystal structure of Rh2(μ-1,8-(NH)2C10H6)(CO)4. Inorganica Chim Acta 1989. [DOI: 10.1016/s0020-1693(00)83424-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Connelly NG, Loyns AC, Fernandez MJ, Modrego J, Oro LA. The chemical and electrochemical one-electron oxidation of diamidonaphthalene-bridged complexes; paramagnetic [Rh2]3+-containing A-frames. ACTA ACUST UNITED AC 1989. [DOI: 10.1039/dt9890000683] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Oro LA, Fernandez MJ, Modrego J, Lopez JM. Bis-bridged dirhodium or diiridium complexes derived from diamine- or dihydroxy-naphthalenes. J Organomet Chem 1985. [DOI: 10.1016/0022-328x(85)80094-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [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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Oro LA, Fernández MJ, Modrego J, Foces-Foces C, Cano FH. Di(μ-amido)dirhodium-Komplexe und Struktur von [Rh2(μ-(NH)2naphth)I2(CO)2(PPh3)2]. Angew Chem Int Ed Engl 1984. [DOI: 10.1002/ange.19840961116] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [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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46
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Oro LA, Fernández MJ, Modrego J, Foces-Foces C, Cano FH. Di-(μ-amido)dirhodium Complexes: Structure of[Rh2(μ-(NH)2naphth)I2(CO)2(PPh3)2]. ACTA ACUST UNITED AC 1984. [DOI: 10.1002/anie.198409131] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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