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Estrogen rapid effects:a window of opportunity for the aging brain?

Neural Regeneration Research 2022年第8期17卷 1629-1632页

作者： Ivanny Marchant Jana Stojanova Lilian Acevedo Pablo Olivero laboratorio de Modelamiento en Medicina Escuela de MedicinaUniversidad de ValparaísoViña del MarChile Interdisciplinary Centre for Health Studies(CIESAL) Universidad de ValparaísoViña del MarChile Servicio de Neurología Hospital Carlos van Buren ValparaísoChile laboratorio de Estructura y Función Celular Escuela de MedicinaFacultad de MedicinaUniversidad de ValparaísoValparaísoChile Centro Interoperativo en Ciencias Odontológicas y Médicas Universidad de ValparaísoValparaísoChile

Estrogen produces several beneficial effects in healthy neurological tissues and exhibits cardioprotective effects.Hormone therapy has been widely used to treat menopausal estrogen deficiency for more than 80 years.despite high initial expectations of cardioprotective effects,there has been substantial distrust following important randomized clinical trials,such as the Women’s Health Initiative.Subsequently,the timing of treatment in relation to the onset of menopause came under consideration and led to the proposal of the timing hypothesis,that early initial treatment is important,and benefits are lost as the timing since menopause becomes prolonged.Subsequent analyses of the Women’s Health Initiative data,together with more recent data from randomized and observational trials,consistently show reductions in coronary heart disease and mortality in younger menopausal women.Regarding cognitive function,the timing hypothesis is consistent with observations from basic and animal studies.There is some clinical evidence to support the benefits of hormonal therapy in this context,though skepticism remains due to the paucity of clinical trials of substantial length in younger menopausal women.It is likely that the effects of estrogens on cognitive performance are due to rapid mechanisms,including mechanisms that influence Ca2+homeostasis dynamics,provide protection in a hostile environment and reduce inflammatory signals from neural tissues.In the future,inflammatory profiles accounting for early signs of pathological inflammation might help identify the‘window of opportunity’to use estrogen therapy for successful cognitive protection.

关键词： aging cardiovascular prevention cognitive function estrogen hormone treatment inflammaging rapid effects timing hypothesis TRPV1 window of opportunity

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Bioactive peptides: A review

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Food Quality and Safety 2017年第1期1卷 29-46页

作者： Adrián Sánchez Alfredo Vázquez laboratorio de Investigación en Inmunoquímica Dr.Márquez 162CuauhtémocDoctores06720CDMX departamento de Química Orgánica Facultad de QuímicaUniversidad Nacional Autónoma de MéxicoMéxico

Bioactive peptides(BP)are organic substances formed by amino acids joined by covalent bonds known as amide or peptide bonds.Although some BP exist free in its natural source,the vast majority of known BP are encrypted in the structure of the parent proteins and are released mainly by enzymatic processes.Some BP have been prepared by chemical synthesis.BP play a significant role in human health by affecting the digestive,endocrine,cardiovascular,immune,and nervous systems.BP are considered the new generation of biologically active regulators;they can prevent oxidation and microbial degradation in foods and also improve the treatment of various diseases and disorders,thus increasing the quality of life.The growing interest in BP has incentivized the scientific community and the food industry to exploring the development of new food additives and functional products based on these peptides.The present review highlights the recent findings on the identification,bioassays,and use of BP,as well as their potential use as food additives and in the development of functional products.

关键词： peptides bioactivity marine origin nutraceutical hydrolysis fermentation

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Interplay between post-translational cyclooxygenase-2 modifications and the metabolic and proteomic profile in a colorectal cancer cohort

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World Journal of Gastroenterology 2019年第4期25卷 433-446页

作者： Patricia Prieto Rafael I Jaén Daniel Calle María Gómez-Serrano Estefanía Nú?ez María Fernández-Velasco Paloma Martín-Sanz Sergio Alonso Jesús Vázquez Sebastián Cerdán Miguel ángel Peinado Lisardo Boscá department of Metabolism and Physiopathology of Inflammatory Diseases Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM) Centro de Investigación Biomédica en Red de Enfermedades cardiovasculares (Ciber-CV) Instituto de Salud Carlos III (ISCIII) laboratorio de Imagen Médica Hospital Universitario Gregorio Mara?ón Laboratorio de Proteómica Cardiovascular Centro Nacional de Investigaciones Cardiovasculares (CNIC) Instituto de Investigación Sanitaria del Hospital Universitario la Paz(IdiPaz) Programa de Medicina Predictiva y Personalizada del Cáncer (PMPPC) Fundación Instituto de investigación en ciencias de la salud Germans Trias i PujolCtra Can Ruti

BACKGROUND Colorectal cancer(CRC) is the second most common cause of cancer death worldwide. It is broadly described that cyclooxygenase-2(COX-2) is mainly overexpressed in CRC but less is known regarding post-translational modifications of this enzyme that may regulate its activity, intracellular localization and stability. Since metabolic and proteomic profile analysis is essential for cancer prognosis and diagnosis, our hypothesis is that the analysis of correlations between these specific parameters and COX-2 state in tumors of a high number of CRC patients could be useful for the understanding of the basis of this cancer in humans.AIM To analyze COX-2 regulation in colorectal cancer and to perform a detailed analysis of their metabolic and proteomic profile.METHODS Biopsies from both healthy and pathological colorectal tissues were taken under informed consent from patients during standard colonoscopy procedure in the University Hospital of Bellvitge(Barcelona, Spain) and Germans Trias i Pujol University Hospital(Campus Can Ruti)(Barcelona, Spain). Western blot analysis was used to determine COX-2 levels. deglycosylation assays were performed in both cells and tumor samples incubating each sample with peptide N-glycosidase F(PNGase F). Prostaglandin E2(PGE2) levels were determined using a specific ELISA. 1 H high resolution magic angle spinning(HRMAS) analysis was performed using a Bruker AVIII 500 MHz spectrometer and proteomic analysis was performed in a nano-liquid chromatography-tandem mass spectrometer(nano LC-MS/MS) using a QExactive HF orbitrap MS.RESULTS Our data show that COX-2 has a differential expression profile in tumor tissue of CRC patients vs the adjacent non-tumor area, which correspond to a glycosylated and less active state of the protein. This fact was associated to a lesser PGE2 production in tumors. These results were corroborated in vitro performing deglycosylation assays in HT29 cell line where COX-2 protein profile was modified after PNGase F incubation, showing higher PGE2 levels. M

关键词： Colon Carcinoma Cyclooxygenase Prostaglandin proteomics High resolution magic angle spinning

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Risk Factors and Gender Differences for depression in Chilean Older Adults:A Cross-Sectional Analysis from the National Health Survey 2016–2017

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International Journal of Mental Health Promotion 2022年第5期24卷 679-697页

作者： Gabriela Nazar Carlos-María Alcover Yeny Concha-Cisternas Igor Cigarroa Ximena Díaz-Martínez Mariela Gatica-Saavedra Fabián Lanuza Ana María Leiva-Ordónez María Adela Martínez-Sanguinetti Miquel Martorell Fanny Petermann-Rocha Claudia Troncoso-Pantoja Carlos Celis-Morales departamento de Psicología Facultad de Ciencias SocialesUniversidad de ConcepciónConcepciónChile Centro de Vida Saludable Universidad de ConcepciónConcepciónChile departamento de Psicología Facultad de Ciencias de la SaludUniversidad Rey Juan CarlosMadridEspaña Pedagogía en Educación Física Facultad de EducaciónUniversidad AutónomaTalcaChile Escuela de Kinesiología Facultad de SaludUniversidad Santo TomásLosÁngelesChile Grupo de Investigación Calidad de Vida Departamento de Ciencias de la EducaciónUniversidad del BiobíoChillánChile depto de Psiquiatría y Salud Mental Facultad de MedicinaUniversidad de ConcepciónConcepciónChile Centro de Epidemiología cardiovascular y Nutricional(EPICYN) Facultad de MedicinaUniversidad de La FronteraTemucoChile Biomarkers and Nutrimetabolomics Laboratory Department of NutritionFood Sciences and GastronomyFood Technology Reference Net(XIA)Nutrition and Food Safety Research Institute(INSA)Faculty of Pharmacy and Food SciencesUniversity of BarcelonaBarcelona08028Spain Instituto de Anatomía Histología y PatologíaFacultad de MedicinaUniversidad Austral de ChileValdiviaChile Instituto de Farmacia Facultad de CienciasUniversidad Austral de ChileValdiviaChile departamento de Nutrición y Dietética Facultad de Farmacia.Universidad de ConcepciónConcepciónChile Facultad de Medicina Universidad Diego PortalesSantiagoChile BHF Glasgow cardiovascular Research Centre Institute of Cardiovascular and Medical SciencesUniversity of GlasgowGlasgowUK Centro de Investigación en Educación y desarrollo(CIEde-UCSC).departamento de Salud Pública Facultad de MedicinaUniversidad Católica de la Santísima ConcepciónConcepciónChile laboratorio de Rendimiento Humano Grupo de Estudio en EducaciónActividad Física y Salud(GEEAFyS)Universidad Católica del MauleTalcaChile

depressive disorders are recognized as one of the most common mental health conditions across different age groups.However,the risk factors associated with depression among older people from low-and middle-income countries remains unclear.This study aims to identify socio-demographic,health and psychosocial-related factors associated with depression in Chilean older adults.A cross-sectional study was carried out in a representative sample of 1,765 adults aged≥60 years participants from the Chilean National Health Survey 2016–2017.depres-sion was assessed with the Composite International Diagnostic Interview(CIDI-SF).Associations between the exposure variables and depression were investigated using Poisson regression analyses.The mainﬁndings indi-cated that women showed higher likelihood of depression than men(Prevalence Ratio(PR)=2.6[95%CI:1.40;4.89]).An increased likelihood of depression was found in older adults with chronic pain,multimorbidity(≥2 diseases),previous diagnose of depression,high perception of stress,ﬁnancial stress,and difﬁculties for social par-ticipation.In women,higher likelihood of depression was found for those with the frailty phenotype(PR:8.53[95%CI:1.68;43.32]),rheumatoid arthritis(PR:2.41[95%CI:1.34;4.34]),insomnia(PR:2.99[95%CI:1.74;5.12])and low self-rated well-being(PR:4.94[95%CI:2.26;10.79]).Men who were divorced(PR:7.10[95%CI:1.44;34.90])or widowed(PR:10.83[95%CI:3.71;31.58]),obese(PR:5.08[95%CI:1.48;17.42])and who had asthma(PR:7.60[95%CI:2.31;24.99])were associated with higher odds of depression.The currentﬁndings may have clinical implications for the early identiﬁcation of older adults more susceptible to depression and also suggest the need to implement cultural and age-sensitive strategies to promote mental health in late life.

关键词： depression older adults aging late-life depression risk factors

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Radial Applanation Tonometry as an Adjuvant Tool in the Noninvasive Arterial Stiffness and Blood Pressure Assessment

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World Journal of cardiovascular Diseases 2014年第5期4卷 225-235页

作者： Lucas Jose Sa da Fonseca Marco Antonio Mota-Gomes Luiza ARabelo laboratorio de Reatividade cardiovascular Setor de Fisiologia e FarmacologiaInstituto de Ciências Biologicas e da SaudeUniversidade Federal de AlagoasMaceioBrazil Centro de Pesquisas Clinicas do Hospital do Coracao de Alagoas—HCOR-AL MaceioBrazil Max-delbruck-Center for Molecular Medicine BerlinGermany

Since antiquity, the human arterial pulse represents an important parameter in the clinical assessment. Besides being routinely assessed in the medical practice, such pulse is not observed in its completeness yet, once many of the data obtained through it cannot be evaluated using conventional methods. Taking into account such methods, the measurement of arterial blood pressure using sphygmomanometry, although broadly widespread in the assessment and follow-up of patients who require accompaniment of their cardiovascular status, is not able to properly guide about parameters related to the central hemodynamic status, the latter most strongly associated with cardiovascular risk. Such incapability is due to the centrifugal augmentation of the pressures taken at different points of the arterial bed, based on the properties of the closed arterial system through which the blood flow travels. In this context, methodologies capable of assessing central parameters estimated using the pulse wave analysis, such as applanation tonometry, represent a promising adjuvant for evaluating patients with cardiovascular diseases, by providing detailed information concerning hemodynamic parameters otherwise inaccessible. In this scenario, the present review focuses on the applanation tonometry and its assessment on the radial artery, highlighting the importance of this method in the cardiovascular assessment, as well as its relevance in the clinical practice, when determining parameters peripherally obtained capable of estimating the central hemodynamic status.

关键词： Arterial Pulse Arterial Stiffness Noninvasive Assessment Radial Tonometry cardiovascular Risk

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CXCR4+ and SDF-1+ Bone Marrow Cells Are Mobilized into the Blood Stream in Acute Myocardial Infarction and Acute Ischemia

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World Journal of cardiovascular Diseases 2014年第7期4卷 361-367页

作者： Jose Luis Aceves Rafael Vilchis Maria Antonieta Medina Monserrat Borja Silvia Cortes Guillermo Diaz Armando Castro Alexis Gomez Jose JParra Martha Alvarado Manuel Lopez Hernandez Virna Poveda Felipe Masso Luis FMontano Division de Cardiocirugia Centro Medico Nacional 20 de Noviembre ISSSTEMexico DFMexico departamento de Hematologia Centro Medico Nacional 20 de Noviembre ISSSTEMexico DFMexico laboratorio de Hormonas Centro Medico Nacional 20 de Noviembre ISSSTEMexico DFMexico departamento de Inmunobiologia Biologia Celular y Tisular Facultad de Medicina UNAMMexico DFMexico

Cell therapy has shown beneficial effects on ventricular function and tissue regeneration in patients with acute and chronic myocardial infarction, although with diverse grades of variability in the results, possibly by proportion, subtype and cell cycle status. Objective: Identify and phenotypically characterize, via CXCR4 and SDF-1 expression, the bone marrow cell subpopulations that are mobilized into the bloodstream in patients with Acute Myocardial Infarction (AMI) and Acute Ischemia (AI) such as acute angina and Chronic Ischemia (CI) such as chronic stable angina, and also determine the cell cycle status of these cells. Method: Patients with AMI and AI were recruited in the ICCU, and patients with CI in the departments of cardiology and cardiovascular surgery. The quantification of cellular subpopulations was made by cytofluorometry with a FACS caliburcyto fluorometry (Becton Dickinson) with specific FITC-labeled anti human monoclonal antibodies against CD34, CD133, CD117, CD48, CXCR4, SDF-1 and Ki67 (Becton Dickinson). Serum concentration of IL-6 and IL-8 were determined by a sequential solid phase chemiluminescent assay performed in a SIEMENS IMMULITE 1000 Analyzer. Statistical analysis was made with the SPSS version 20.0 for Windows. A p value 3/ml) than that in AI (9.2 ± 1.3 × 103/ml) and CI (6.6 ± 1.1 × 103/ml) patients (p p = 0.22 to 0.39), but interestingly in AMI and AI patients, cells were CXCR4+ in almost half of these mobilized cells, although the proportion was significantly higher in AMI patients (46.8% ± 7.1% to 55.7% ± 6.3% vs 23% ± 1.6% to 28.4% ± 2.1%, p = 0.03 to 0.05). A similar behavior was observed with the Ki67 antibody (29.9% ± 2.1% to 36.1% ± 6.3% vs 10% ± 1.2% to 24% ± 1.1%, p = 0.001 to 0.05). Bivariate analysis of the results showed a significant correlation of the cell proportion in AMI but not in AI and CI patients (p = 0.001 to 0.05;0.12 to 0.87 and 0.17 to 0.92 respectively). The amount of myocardial tissue infarcted did not show any correlation with the amount of cellular sub

关键词： Stem Cells CXCR4:SDF-1 Axis Cardiac Repair Acute and Chronic Ischemia

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Chilean crude extract of <i>Ruta graveolens</i>generates vasodilatation in rat aorta at subtoxic cellular concentrations

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Advances in Bioscience and Biotechnology 2013年第1期4卷 29-36页

作者： Ignacio Jofré Fernández Patricia Navarrete Gómez Jorge Parodi Fernando Romero Mejía Raúl Salvatici Salazar Center of Neurosciences and Peptides Biology Faculty of Medicine Universidad de La Frontera Temuco Chile laboratorio de Fisiología de la Reproducción Núcleo de Producción Alimentaria Escuela de Medicina Veterinaria Facultad de Recursos Naturales Universidad Católica de Temuco Temuco Chile Laboratory of Molecular and Cellular Neurobiology Department of Molecular and Cellular Neurobiology Neurobiology Institute Campus Juriquilla-Querétaro Universidad Nacional Autónoma de México Mexico City Mexico

In Chile elevated percentage of population have cardiovascular diseases, 70% of this populations is a hypertensive peoples. The Ruta graveolens (Ruta) is a medicinal plant used in different parts of the world with different therapeutics properties like dermatologic as far as anti-helmintic properties. We analyzed the vascular action measuring the tension to identify vasodilator effect of Ruta extract in norm-tense rat’s aorta incubated and measured in isolated organ bath, and evaluating the toxicity effect in CRL-1730 cell line, through enzymatic assay (MTT), confocal microscopy (propidium iodide stain) and flow cytometry (TUNEL assay), including extracellular reactive oxygen species (ROS) production through luminescence assay. The results show with de50 29 ± 0.1 μg/mL evidenced vasodilatation, partially endothelium-depend. The cytotoxicity showed with de50 304.6 ± 2 μg/mL in enzymatic assay (MTT) while evidenced membrane permeability in high concentrations (1500 μg/mL), DNA fragmentation in absence of oxidative stress in only observed when high concentrations of Ruta are used over the cell culture. The vasodilatation activity is executed in subtoxic concentration and partially endothelium-depend without permeability effect in the membrane and deterioration of the cells viability suggesting a complex effect of Ruta preparation in the regulation of vascular tone.

关键词： Vasodilatation Ruta graveolens Toxicity Endothelium

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Membrane and Subcellular Muscle Injury Are Induced by Single or Multiple Exposure to Cigarette Smoke

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Open Journal of Pathology 2014年第3期4卷 125-137页

作者： Ana Maria Fleig-Mayer Alba Ramirez-Sarmiento Amanda Iglesias Montserrat Morla Carlos Coronell Diego Rodríguez Simona Pichinni Josep Lloreta Piergiorgio Zuccaro Xavier Busquets Joaquim Gea Jose R.Jardim Mauricio Orozco-Levi Centro Universitario do Triangulo(UNITRI) Avenida nicomedes Alves Dos Santos4545-GaveaUberlandiaPulmonary Rehabilitation CenterRespiratory DivisionFederal University of Sao PauloSao PauloBrazil Group of Research in Injury Immune Response and Function(LIF)Municipal Institute of Medical Research(IMIM)Carrer Dr.Aiguader 88BarcelonaE-08003Spain Servei de Pneumologia Hospital del MarPasseig Maritim 25BarcelonaE-08003Spain Centro en Red de Investigacion de Enfermedades Respiratorias(CIBERES) Recinto Hospital Joan March Carretera Soller Km.1207110BunyolaMallorcaIlles BalearsSpain Institut Universitari d’Investigacio en Ciencies de la Salut(IUNICS)and department de Biologia Universitat Illes Balears(UIB)Cra de ValldemossaKm 7.5PalmaIlles BalearsSpain laboratorio Di Biochimica Clinica Istituto Superiore Di Sanita.Viale Regina Elena 29900161RomaItaly Respiratory department Fundacion Cardiovascular de ColombiaCalle 155A 23-58FloridablancaSantanderColombia Servei d’Anatomia Patologica Hospital del MarPasseig Maritim 25BarcelonaE-08003Spain

Cigarette smoking is the main cause of chronic obstructive pulmonary disease (COPD). Diaphragm injury is observed in patients with COPD. However, the potential role of smoking in triggering or perpetuating muscle injury is unknown. The present study was aimed at evaluating the potential role of commercial tobacco smoke as a direct cause of skeletal muscle injury in experimental conditions. Seventy Wistar rats (170 - 250 g) were assigned to smoking (n = 49) or non-smoking (n = 21) groups. The smoking groups were submitted to a single or multiple (i.e., five or thirty) daily sessions of cigarette smoking in an inhalatory chamber (time length: 2 h each session). The level of exposure was constant and assessed by CO concentrations (50 ppm) and serum cotinine analysis. Animals submitted to a single smoke exposure and the corresponding controls were euthanized in groups at 0 h, 2 h, 4 h, 24 h or 48 h after completing the exposure. Animals submitted to multiple exposures were euthanized at 0 h after smoking. Samples from vastus lateralis muscle were obtained and processed for assessing cell injury and selected protein expression. Monoclonal anti-albumin antibodies were used to identify muscle fibers with sarcolemmal (membrane) injury. Subcellular muscle injury was assessed using transmission electron microscopy (EM). MyoD, myogenin and α-tubulin were immunodetected using western blot techniques. Exposure to cigarette smoke associated with significant membrane damage (mean relative difference (MRD) with controls: +181%, p = 0.004) and sarcomere disruptions (MRD: +226%, p = 0.001). Expression of MyoD and myogenin (normalized to α-tubulin) were significantly increased at 4 h and remained increased at 48 h post-exposure. We conclude that not only a single but also consecutive exposure to tobacco smoke have acute deleterious effects on peripheral muscle structure. A rapid induction of subrogate markers of skeletal muscle stress and repair processes associates to sarcolemmal and sarcomere damage.

关键词： Skeletal Muscle Muscle Injury Muscle Regeneration Quadriceps Cigarette Smoking

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Prognostic relevance of normocytic anemia in elderly patients affected by cardiovascular disease

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Journal of Geriatric Cardiology 2021年第8期18卷 654-662页

作者： Liana Spazzafumo Fabiola Olivieri Jacopo Sabbatinelli Roberta Galeazzi Rina Recchioni Fiorella Marcheselli Paola Tamburrini Roberto Antonicelli Epidemiologic Observatory Regional Health AgencyRegione MarcheAnconaItaly department of Clinical and Molecular Sciences UniversitàPolitecnica delle MarcheAnconaItaly Center of Clinical Pathology and Innovative Therapy Italian National Research Centre on AgingIRCCS INRCAAnconaItaly SOD Medicina di laboratorio Azienda Ospedaliero Universitaria Ospedali RiunitiAnconaItaly Clinical Laboratory and Molecular Diagnostic Italian National Research Center on AgingIRCCS INRCAAnconaItaly department of Cardiology-CCU Italian National Research Centre on AgingIRCCS INRCAAnconaItaly

BACKGROUND Anemia associated with cardiovascular diseases(CVD) is a common condition in older persons. Prevalence and prognostic role of anemia were extensively studied in patients with myocardial infarction(MI) or congestive heart failure(CHF) whereas limited data were available on patients with atrial fibrillation(AF). This study was conducted to assess the clinical prevalence and prognostic relevance of anemia in elderly patients affected by AF and other CVDs.METHODS A total of 866 elderly patients(430 men and 436 women, age: 65-98 years, mean age: 85 ± 10 years) were enrolled.Among these patients, 267 patients had acute non-ST-segment elevation MI(NSTEMI), 176 patients had acute CHF, 194 patients had acute AF and 229 patients were aged-matched healthy persons(CTR). All parameters were measured at the hospital admission and cardiovascular mortality was assessed during twenty-four months of follow-up.RESULTS The prevalence of anemia was higher in NSTEMI, CHF and AF patients compared to CTR subjects(50% vs. 15%, P decreased hemoglobin levels(P = 0.001) and high reticulocyte index(P = 0.023) were associated with higher mortality in CVD patients.CONCLUSIONS The significant associations between CVD and anemia and the prognostic relevance of anemia for elderly patients with CVD were confirmed in this study. The presence of anemia in AF patients is associated with a two-fold increased mortality risk compared with non-anemic AF patients. Low hemoglobin and high reticulocyte count independently predict mortality in elderly patients with CVD.

关键词： patients anemia cardiovascular

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