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      Asociación de marcadores inflamatorios y de disfunción endotelial con la depresión en la enfermedad cerebrovascular isquémica Translated title: Association of inflammatory markers and endothelial dysfunction with depression in patients with ischemic cerebrovascular disease

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          Abstract

          RESUMEN Fundamento: la depresión es una de las complicaciones no neurológicas más frecuentes en la enfermedad cerebrovascular isquémica. Objetivo: determinar la asociación de marcadores inflamatorios y de disfunción endotelial con la depresión en pacientes con enfermedad cerebrovascular isquémica. Métodos: se realizó un estudio analítico, prospectivo de corte transversal en pacientes con enfermedad cerebrovascular isquémica en fase aguda (N=22) y no aguda (N=37); atendidos en el Instituto de Neurología y Neurocirugía y el Hospital Manuel Fajardo, de La Habana, Cuba. Se recogieron variables demográficas, factores de riesgo, etiología y localización del infarto, deficiencia neurológica, discapacidad para las actividades de la vida diaria (índice de Barthel), neuropsicológicas (depresión por inventario de Beck y test de Hamilton). Se determinó proteína C-reactiva, alfa-1-antitripsina, complementos C3 y C4 y microalbuminuria. Resultados: las puntuaciones de las pruebas neuropsicológicas no tuvieron diferencias significativas entre la fase aguda y no aguda, pero hubo un aumento estadístico de la frecuencia de pacientes sin depresión y con ligera depresión en la fase no aguda. En la fase aguda, el complemento C4 y en la fase no aguda el complemento C3, la proteína C-reactiva y el alfa-1-antitripsina se correlacionaron directamente con la puntuación del inventario de Beck. La proteína C-reactiva y C3 se correlacionaron estadísticamente con la puntuación del test de Hamilton. En el análisis multivariado, la proteína C-reactiva mostró asociación independiente con el grado de depresión por el test de Hamilton. Conclusiones: la proteína C-reactiva pudiera estar relacionada con la severidad de la depresión, quizás por asociación con la discapacidad para las actividades de vida diaria.

          Translated abstract

          ABSTRACT Foundation: depression in ischemic cerebrovascular disease is one of the most frequent non-neurological complications. Objective: to determine the association of inflammatory markers and endothelial dysfunction with depression in patients with ischemic cerebrovascular disease. Methods: an analytical, prospective, cross-sectional study was carried out in patients with acute (N=22) and non-acute (N=37) ischemic cerebrovascular disease; treated at the Institute of Neurology and Neurosurgery; and the Manuel Fajardo Hospital, in Havana, Cuba. Demographic variables, risk factors, etiology and location of the infarction, neurological deficiency, disability for activities of daily living (Barthel index), neuropsychological (depression by Beck inventory and Hamilton test) were collected. C-reactive protein, alpha-1-antitrypsin, C3 and C4 complements, and microalbuminuria were determined. Results: the scores of the neuropsychological tests did not have significant differences between the acute and non-acute phase, but there was a statistical increase in the frequency of patients without depression and with slight depression in the non-acute phase. In the acute phase, C4, and in the non-acute phase, C3, C-reactive protein and alpha-1-antitrypsin were directly correlated with the Beck inventory score. C-reactive protein and C3 were statistically correlated with the Hamilton test score. In the multivariate analysis, C-reactive protein showed an independent association with the degree of depression by the Hamilton test. Conclusions: C-reactive protein could be related to the severity of depression, perhaps by association with the disability for activities of daily living.

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          Significance of Complement System in Ischemic Stroke: A Comprehensive Review

          The complement system is an essential part of innate immunity, typically conferring protection via eliminating pathogens and accumulating debris. However, the defensive function of the complement system can exacerbate immune, inflammatory, and degenerative responses in various pathological conditions. Cumulative evidence indicates that the complement system plays a critical role in the pathogenesis of ischemic brain injury, as the depletion of certain complement components or the inhibition of complement activation could reduce ischemic brain injury. Although multiple candidates modulating or inhibiting complement activation show massive potential for the treatment of ischemic stroke, the clinical availability of complement inhibitors remains limited. The complement system is also involved in neural plasticity and neurogenesis during cerebral ischemia. Thus, unexpected side effects could be induced if the systemic complement system is inhibited. In this review, we highlighted the recent concepts and discoveries of the roles of different kinds of complement components, such as C3a, C5a, and their receptors, in both normal brain physiology and the pathophysiology of brain ischemia. In addition, we comprehensively reviewed the current development of complement-targeted therapy for ischemic stroke and discussed the challenges of bringing these therapies into the clinic. The design of future experiments was also discussed to better characterize the role of complement in both tissue injury and recovery after cerebral ischemia. More studies are needed to elucidate the molecular and cellular mechanisms of how complement components exert their functions in different stages of ischemic stroke to optimize the intervention of targeting the complement system.
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            Early Post-stroke Depression and Mortality: Meta-Analysis and Meta-Regression

            Background: Post-stroke depression (PSD) is a common and serious complication after stroke. In this systematic review and meta-analysis, we evaluated the association between early PSD and mortality, considering depressive symptoms occurring within the first 3 months after the neurological event. Methods: This meta-analysis was conducted following Meta-analysis Of Observational Studies in Epidemiology (MOOSE) guidelines and based on studies indexed till May 2018 in PubMed and Web of Science databases. The relative risk (RR) for mortality in individuals with PSD, as compared with non-depressed ones, was estimated. Findings were pooled according to a random-effects model. Meta-regression and subgroup analyses were carried out. Results: We included seven studies, accounting for 119,075 individuals, of whom 17,609 suffering from an early PSD. We found higher rates of mortality in subjects with PSD as compared with non-depressed ones (RR = 1.50; 95%CI: 1.28 to 1.75; p < 0.001). Heterogeneity across studies was moderate (I 2 = 50.7%). Subgroup analysis showed a slightly higher effect of PSD on short-term mortality (RR = 1.70; p < 0.001), as compared with long-term one (RR = 1.35; p = 0.01). According to relevant meta-regression analyses, the estimate was influenced by sample proportion of men (p = 0.043). Conclusions: Despite some limitations, our study shows the negative impact of early PSD on survival rates. Mechanisms underlying this association still need to be elucidated and several interpretations can be hypothesized. Future research should test if an early management of depression may increase life expectancy after stroke.
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              Neuroinflammation as a Key Driver of Secondary Neurodegeneration Following Stroke?

              Ischaemic stroke involves the rapid onset of focal neurological dysfunction, most commonly due to an arterial blockage in a specific region of the brain. Stroke is a leading cause of death and common cause of disability, with over 17 million people worldwide suffering from a stroke each year. It is now well-documented that neuroinflammation and immune mediators play a key role in acute and long-term neuronal tissue damage and healing, not only in the infarct core but also in distal regions. Importantly, in these distal regions, termed sites of secondary neurodegeneration (SND), spikes in neuroinflammation may be seen sometime after the initial stroke onset, but prior to the presence of the neuronal tissue damage within these regions. However, it is key to acknowledge that, despite the mounting information describing neuroinflammation following ischaemic stroke, the exact mechanisms whereby inflammatory cells and their mediators drive stroke-induced neuroinflammation are still not fully understood. As a result, current anti-inflammatory treatments have failed to show efficacy in clinical trials. In this review we discuss the complexities of post-stroke neuroinflammation, specifically how it affects neuronal tissue and post-stroke outcome acutely, chronically, and in sites of SND. We then discuss current and previously assessed anti-inflammatory therapies, with a particular focus on how failed anti-inflammatories may be repurposed to target SND-associated neuroinflammation.
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                Author and article information

                Journal
                ms
                MediSur
                Medisur
                Universidad de Ciencias Médicas de Cienfuegos, Centro Provincial de Ciencias Médicas, Provincia de Cienfuegos. (Cienfuegos, , Cuba )
                1727-897X
                October 2023
                : 21
                : 5
                : 1014-1023
                Affiliations
                [4] La Habana orgnameHospital Clínico-Universitario Comandante Manuel Fajardo Cuba
                [3] La Habana orgnameFacultad de Medicina Dr. Miguel Enríquez. Cuba
                [1] Lubango orgnameHospital Central Dr. Antonio Aghostino Neto. Angola
                [2] La Habana orgnameInstituto de Neurología y Neurocirugía. Cuba
                Article
                S1727-897X2023000501014 S1727-897X(23)02100501014
                eb0d8b2d-14d4-49a1-9c6e-ace9f464136a

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 22 May 2023
                : 14 August 2023
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 20, Pages: 10
                Product

                SciELO Cuba

                Categories
                Artículos Originales

                polymerase chain reactions,accidente cerebrovascular isquémico,depresión,proteína C reactiva,reacción en cadena de la polimerasa,biomarcadores,ischemic stroke,depression,C reactive protein,biomarkers

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