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1.
Odontology ; 108(4): 697-703, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32078100

RESUMO

To assess the previous periapical status and the quality of root canal filling as predictors of the outcome in initial non-surgical endodontic procedures. A retrospective cohort study was designed in which the presence of a previous periapical lesion was determined radiographically. The quality of the root filling was evaluated in terms of homogeneity, taper, and apical extension. The response variable was dichotomized to success and failure. Bivariate analyzes and a mixed generalized linear model interpreted the association between the explanatory variables and the outcome of the initial non-surgical endodontic procedures. A total of 349 roots were evaluated, and a failure rate of 13.18% was established. Poor filling quality was determined in 8.3% of the roots. As a main result, the presence of a preoperative periapical lesion did not determine a significant risk to the failure of the initial treatment. Unlike, a poor quality of the obturation determined association with an unfavorable outcome like this: (1) homogeneity (OR 2.32; p = 0.0181); (2) taper (OR 5.8; p = 0.0); and, (3) extension (OR 3.41; p = 0.0). Therefore, a significant association between inadequate quality of the root filling and failure of the primary non-surgical endodontic procedures was found. Short length of filling was highly associated with failure. The presence of previous periapical lesion was not found to be a significant predictor for treatment outcomes.


Assuntos
Cavidade Pulpar , Periodontite Periapical , Estudos de Coortes , Estudos Retrospectivos , Obturação do Canal Radicular , Tratamento do Canal Radicular , Resultado do Tratamento
2.
Rev. Soc. Colomb. Oftalmol ; 53(1): 17-23, 2020. ilus., tab.
Artigo em Espanhol | LILACS, COLNAL | ID: biblio-1128016

RESUMO

Introducción: Queratocono es un término clínico amplio, que describe un estado de la córnea derivado de su adelgazamiento focal y protrusión secundaria central, paracentral y/o periférica. Los reportes epidemiológicos globales revelan un amplio rango en cifras de prevalencia e incidencia que se podría explicar por las diferencias geográficas, factores de riesgo, tipo de población, métodos y criterios diagnósticos utilizados. En Colombia no hay estudios epidemiológicos que evalúen esta enfermedad de manera integral por lo que su frecuencia aún no ha podido ser determinada. Objetivo: identificar la prevalencia de Queratocono y Degeneración Marginal Pelucida (DMP) en el centro oftalmológico privado Clínica Barraquer, durante el periodo de tiempo comprendido entre enero de 2014 y enero de 2019. Diseño del estudio: estudio transversal de fuentes secundarias. Método: revisión de los registros médicos electrónicos de todos los pacientes que consultaron por primera vez; posteriormente, se filtraron por el diagnóstico de Ectasia Corneal y/o Queratocono. Cada una de las historias clínicas fue analizada por un oftalmólogo teniendo en cuenta los diagnósticos preestablecidos. Resultados: del grupo de 91.426 pacientes, 2.647 tenían Queratocono o DMP. Se estableció una prevalencia de Queratocono y DMP del 2.84%. La edad promedio al momento del diagnóstico fue de 29.7±12 años. El 42.8% eran mujeres y el 57.2% hombres. Conclusión: la ectasias corneales de tipo Queratocono y DMP, son enfermedades con una prevalencia significativa en la población colombiana evaluada en la clínica Barraquer; consideramos se requiere de programas de tamizaje visual para su detección y tratamiento oportunos.


Background: Keratoconus is a wide clinical term used to describe a corneal disease characterized by thinning and secondary central, paracentral or peripheral protrusion of the cornea. The global epidemiological reports reveal a wide range of prevalence and incidence, that may be explained by geographical differences, risk factors, kind of population, and methods and diagnostic criteria employed. There are no epidemiological studies to evaluate globally this disease in Colombia, therefore, its frequency has not been determined yet. Objective: to identify the prevalence of Keratoconus and Pellucid Marginal Degeneration (PMD) from January 2014 to January 2019 at the private ophthalmological center Clínica Barraquer. Study Design: cross-sectional study using secondary data. Method: a review of the electronic medical records of all patients who consulted for the first time was performed, and then, filtered by the initial diagnosis of Corneal Ectasia or Keratoconus. Each one of the medical records was analyzed by an ophthalmologist taking into account a series of pre-established diagnostic criteria. Results: of 91.426 patients, 2.647 had Keratoconus or PMD within the time interval of the study. A prevalence of 2.84% was determined in first time patients. The average age at the time of diagnosis was 29.7±12 years. 42.8% were female patients and 57.2% male patients. Conclusion: Keratoconus and PMD are diseases with significant prevalence in the Colombian population evaluated at the Barraquer clinic, thus, visual screening programs are required for accurate detection and treatment.


Assuntos
Ceratocone/epidemiologia , Estudos Epidemiológicos , Fatores de Risco , Córnea , Doenças da Córnea/epidemiologia , Oftalmopatias
3.
Mov Disord ; 34(8): 1192-1202, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31136028

RESUMO

BACKGROUND: Parkinson's disease is an intractable disorder with heterogeneous clinical presentation that may reflect different underlying pathogenic mechanisms. Surrogate indicators of pathogenic processes correlating with clinical measures may assist in better patient stratification. Mitochondrial function, which is impaired in and central to PD pathogenesis, may represent one such surrogate indicator. METHODS: Mitochondrial function was assessed by respirometry experiment in fibroblasts derived from idiopathic patients (n = 47) in normal conditions and in experimental settings that do not permit glycolysis and therefore force energy production through mitochondrial function. Respiratory parameters and clinical measures were correlated with bivariate analysis. Machine-learning-based classification and regression trees were used to classify patients on the basis of biochemical and clinical measures. The effects of mitochondrial respiration on α-synuclein stress were assessed monitoring the protein phosphorylation in permitting versus restrictive glycolysis conditions. RESULTS: Bioenergetic properties in peripheral fibroblasts correlate with clinical measures in idiopathic patients, and the correlation is stronger with predominantly nondopaminergic signs. Bioenergetic analysis under metabolic stress, in which energy is produced solely by mitochondria, shows that patients' fibroblasts can augment respiration, therefore indicating that mitochondrial defects are reversible. Forcing energy production through mitochondria, however, favors α-synuclein stress in different cellular experimental systems. Machine-learning-based classification identified different groups of patients in which increasing disease severity parallels higher mitochondrial respiration. CONCLUSION: The suppression of mitochondrial activity in PD may be an adaptive strategy to cope with concomitant pathogenic factors. Moreover, mitochondrial measures in fibroblasts are potential peripheral biomarkers to follow disease progression. © 2019 The Authors. Movement Disorders published by Wiley Periodicals, Inc. on behalf of International Parkinson and Movement Disorder Society.


Assuntos
Metabolismo Energético/fisiologia , Fibroblastos/metabolismo , Mitocôndrias/metabolismo , Doença de Parkinson/metabolismo , alfa-Sinucleína/metabolismo , Trifosfato de Adenosina/metabolismo , Feminino , Galactose/metabolismo , Glucose/metabolismo , Glicólise/fisiologia , Humanos , Aprendizado de Máquina , Masculino , Modelos Estatísticos , Fosforilação Oxidativa , Doença de Parkinson/fisiopatologia , Fosforilação , Cultura Primária de Células , Índice de Gravidade de Doença , Pele/citologia , Estresse Fisiológico
6.
Clin Exp Rheumatol ; 37 Suppl 119(4): 15-22, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30652681

RESUMO

OBJECTIVES: Resilience, the ability to respond positively to adverse events, may be influenced by long-term stressors and autoimmune/inflammatory conditions such as systemic sclerosis (SSc). Since the immune system plays a role in the development of resilience, we aimed to evaluate the relationship between a panel of cytokines and resilience in patients with SSc. METHODS: Thirty-five consecutive women with established SSc were involved in this exploratory study. Clinical characteristics, including severity of symptoms and resilience, a panel of 15 serum cytokines and 17 autoantibodies were assessed simultaneously. Multivariate methods were used to analyse the data. RESULTS: Interleukin-6 (IL-6) levels were associated with severity of symptoms (ß=1.8395, p=0.04), and low resilience scores (ß= -0.581120, p=0.02). Furthermore, resilience was not associated with clinical manifestations nor polyautoimmunity. Cytokine levels did not significantly differ between groups based on regular physical activity. CONCLUSIONS: The results highlight the importance of IL-6 as a key mediator in the altered cytokine network of SSc.


Assuntos
Autoanticorpos , Interleucina-6 , Escleroderma Sistêmico , Autoanticorpos/sangue , Autoanticorpos/imunologia , Citocinas/sangue , Feminino , Humanos , Interleucina-6/sangue , Interleucina-6/fisiologia , Escleroderma Sistêmico/sangue , Escleroderma Sistêmico/imunologia , Índice de Gravidade de Doença
7.
Clin Rev Allergy Immunol ; 56(3): 362-374, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30187363

RESUMO

The coexistence of Sjögren's syndrome (SS) and autoimmune thyroid disease (AITD) has been documented. However, there is no consensus whether this coexistence should be considered as the same nosological condition or as polyautoimmunity. Thus, in this monocentric retrospective study, patients with SS alone (i.e., primary) were compared with patients with SS and AITD. In addition, a discussion of previous studies including those about genetic and environmental factors influencing the development of both conditions is presented. In our series, all patients with AITD had Hashimoto's thyroiditis (HT). No significant differences in age, gender, age of disease onset, and disease duration were found between the two groups. Lymphadenopathy and urticaria were more frequently registered in patients with SS-HT than in patients with SS alone (p < 0.05). Anti-Ro/SSA antibodies were more frequent in the primary SS group (p = 0.01). SS-HT patients were more likely to report a positive history of smoking (p = 0.03). The clinical expression of SS varies slightly when HT coexists. Although both entities share common physiopathological mechanisms as part of the autoimmune tautology, they are nosologically different and their coexistence should be interpreted as polyautoimmunity. Further studies based on polyautoimmunity would allow establishing a new taxonomy of autoimmune diseases.


Assuntos
Doença de Hashimoto/complicações , Doença de Hashimoto/imunologia , Síndrome de Sjogren/complicações , Síndrome de Sjogren/imunologia , Idoso , Anticorpos Antinucleares/análise , Autoimunidade , Linfócitos B/metabolismo , Linfócitos T CD4-Positivos/metabolismo , Fumar Cigarros/efeitos adversos , Colômbia/epidemiologia , Feminino , Antígenos HLA/genética , Doença de Hashimoto/epidemiologia , Antígenos de Histocompatibilidade Classe II/metabolismo , Humanos , Ativação Linfocitária , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Retrospectivos , Síndrome de Sjogren/epidemiologia
8.
Autoimmun Rev ; 18(2): 184-191, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30572140

RESUMO

OBJECTIVE: The objectives of this systematic review and meta-regression were: 1) to compare the prevalence of cervical HPV infection between SLE patients and healthy controls and 2) to evaluate the relationship between cervical HPV infection and traditional and SLE-related risk factors for cervical HPV infection in these patients. METHODS: We conducted a systematic literature review (PubMed, Cochrane Library, Embase, Virtual Health Library and SciELO databases) following PRISMA guidelines and using meta-regression to investigate the pooled prevalence of cervical HPV infection in adult women with SLE. The articles included were independently evaluated by two investigators who extracted information on study characteristics, defined outcomes, risk of bias and summarized strength of evidence [Quality of evidence using the Oxford Centre for evidence-based medicine (EBM) Levels of Evidence]. Using meta-regression, we further analyzed whether factors such as multiple sexual partners and immunosuppressive therapy were associated with HPV prevalence. We evaluated the quality of evidence included using the Oxford Centre for EBM levels of evidence. Pooled odds ratios (ORs) and 95% confidence intervals (CI) were calculated for studies providing data on HPV prevalence in women with SLE and in healthy controls. RESULTS: A total of 687 articles were identified; 9 full-text articles examining the prevalence of cervical HPV infection in SLE women were included, comprising 751 SLE women. Eight studies employed PCR using general primers. The HPV prevalence varied from 3.1% to 80.7%. In the random effects meta-analysis, the pooled prevalence of cervical HPV infection in SLE vs. controls was 34.15% (95% CI: 19.6%-52.5%) vs. 15.3% (95% CI 0.79-27.8%), OR = 2.87 (95% CI: 2.20-3.76) p < .0001, with large between-study heterogeneity (I2 = 95.4%). When only SLE women were evaluated, meta-regression showed no significant differences between patients with and without a background of multiple sexual partners and any immunosuppressive therapy. In addition, the prevalence of cervical HPV infection did not significantly differ between SLE patients on azathioprine or cyclophosphamide. CONCLUSIONS: This meta-analysis suggests that the prevalence of cervical HPV infection is higher in SLE women than in healthy controls. However, multiple sexual partners and any immunosuppressive therapy or specific immunosuppressive treatment (azathioprine and cyclophosphamide) were not associated with the prevalence of cervical HPV infection.


Assuntos
Lúpus Eritematoso Sistêmico/complicações , Infecções por Papillomavirus/etiologia , Adulto , Feminino , Humanos , Lúpus Eritematoso Sistêmico/patologia , Infecções por Papillomavirus/patologia , Prevalência , Fatores de Risco
9.
Rev. Soc. Colomb. Oftalmol ; 52(1): 8-15, 2019. ilus., tab.
Artigo em Espanhol | LILACS, COLNAL | ID: biblio-1026287

RESUMO

Introducción: el trasplante de córnea es el injerto mas frecuente en el campo de la medicina; las técnicas para realizarlo han evolucionado permitiendo hacer procedimientos menos invasivos, con menor riesgo de rechazo del injerto y con una recuperación más rápida. La escasez de donantes para realizar trasplantes de córnea, genera una limitación terapéutica muy importante en el campo de la patología corneal. Objetivo: Reportar las Indicaciones y Técnicas empleadas en los Trasplantes de Córnea, en una institución privada con atención terciaria en Oftalmología en Bogotá, Colombia. Diseño del Estudio: Estudio transversal de fuentes secundarias. Método: Se hizo un estudio transversal, con las historias clínicas electrónicas de los pacientes operados con algún tipo de trasplante de córnea, en la Clínica Barraquer de América en el periodo comprendido desde Enero del 2010 a Diciembre del 2018 Resultados: Las cuatro primeras Indicaciones para Trasplantes de córnea fueron: 1) Ectasias Corneales 38.27% 2) Descompensación corneal 20.88% 3) Reposición de Injerto 17.72% 4) Leucomas Cicatriciales 16.22%. Las técnicas empleadas fueron Injerto Penetrante el 54.11% - Injertos Laminares (43.52%) con un 17.25% de Injertos Endoteliales. Conclusión: Existen diferencias en la frecuencia de las Indicaciones para trasplante de córnea según la región del país y también respecto a las publicaciones internacionales. El Queratocono fue la indicación mas frecuente. La Queratoplastia Penetrante la técnica más frecuente como procedimiento primario, pero también como técnica alternativa debido a la falta de oportunidad para realizar el trasplante.


Background: corneal transplant is the most frequent graft in the fi eld of medicine; the techniques to carry it out have evolved allowing to make less invasive procedures, with less risk of rejection of the graft and with a faster recovery. The shortage of donors to perform corneal transplants generates a very important therapeutic limitation in the field of corneal pathology.. Objective: To report the Indications and surgical techniques in Corneal Transplants in a tertiary referral center and private Ophthalmological clinic in Bogotá-ColombiaStudy Design: Cross sectional study using secondary data. Method: A cross sectional study was performed with the electronic clinical records of the patients that had a corneal graft of any kind during the period between January 2010 and December 2018 at the Barraquer Clinic in América. Results: The top four indications for corneal transplantation were: 1) Corneal Ectasias 38.27% - 2) Bullous Keratopathy 20.88% ­ 3) Re-Graft 17.72% and 4) Leucomas 16.22%. Penetrating Keratoplasty was the most common indication (54.11%) followed by Lamellar Techniques 43.52% of which Endothelial keratoplasty was performed in 17.25%. Conclusion: Corneal transplant indications and its frequency, are different between country regions in Colombia and towards international reviews. For us, Keratoconus was the most frequent indication. and Penetrating Keratoplasty, the most frequent technique as a primary procedure, but also as an alternative technique due to the lack of opportunity to perform the transplant.


Assuntos
Transplante de Córnea , Ceratoplastia Penetrante/métodos , Ceratocone/cirurgia
10.
Medicina (Bogotá) ; 40(1(120)): 56-66, Ene-Mar, 2018.
Artigo em Espanhol | LILACS | ID: biblio-909815

RESUMO

En el presente artículo se presenta una revisión de los principales resultados del proyecto RAIZ, acrónimo de "Respuesta autoinmune en individuos infectados por el virus Zika", originado por dos eventos mutuamente relacionados, la asociación entre un virus emergente en el continente, el virus Zika (vZika), y una enfermedad neuromuscular poco prevalente en Colombia, el síndrome de Guillain-Barré. Después de la llegada del virus al país se observó que las zonas donde se reportaban brotes del virus, se documentaba un aumento en los casos de síndrome de Guillain-Barré y otros síndromes neurológicos, que generó un gran interés para entender los mecanismos subyacentes de la infección asociados con autoinmunidad neurológica. Mediante la realización del primer estudio de casos y controles de Zika, Guillain-Barré y otros síndromes neurológicos, se comprobó dicha asociación en Colombia. A lo largo del proyecto, además, se investigaron los principales mecanismos asociados, mediante estudios de seroprevalencia de otras infecciones, inmunológicos y genéticos


This article presents a review of the main results of the RAIZ project, acronym of "Autoimmune response in individuals infected with the Zika virus", originated by two mutually related events: the association between an emerging virus on the continent, the Zika virus (vZika), and a neuromuscular disease not very prevalent in Colombia, the Guillain-Barré syndrome. After the arrival of the virus in the country it was observed that in the areas of outbreaks an increase of cases of Guillain-Barré syndrome and other neurological syndromes was documented, which generated a great interest in the understanding of the underlying mechanisms of the infection associated with neurological autoimmunity. By conducting the first case-control study on Zika, Guillain-Barré and other neurological syndromes in Colombia, the association was verified. Throughout the project, the main associated mechanisms were addressed through analyses of other infections, immunological analysis and the first genome-wide association study


Assuntos
Zika virus , Síndrome de Guillain-Barré , Mielite Transversa , Púrpura Trombocitopênica Idiopática
11.
Medicina (Bogotá) ; 40(1(120)): 128-129, Ene-Mar, 2018.
Artigo em Espanhol | LILACS | ID: biblio-910126

RESUMO

Introducción: Resiliencia es la habilidad de responder de manera positiva a eventos adversos. Ésta puede ser influenciada por factores como el estrés crónico, la actividad física y afeccio-nes autoinmunes y/o inflamatorias como la esclerosis sistémica (ES) (1). Objetivo: Evaluar un panel de citoquinas y su asociación con resiliencia, severidad de los síntomas y actividad física en pacientes con ES. Métodos: Este fue un estudio exploratorio que incluyó 35 mujeres con ES. Las características clínicas, incluidas la severidad de los síntomas, la actividad física, la resiliencia así como un panel de 15 citoquinas fueron evaluados simultáneamente.


Assuntos
Escleroderma Sistêmico , Citocinas , Interleucina-10 , Interleucina-13 , Interleucina-5
12.
Rev. colomb. nefrol. (En línea) ; 4(2): 141-148, July-Dec. 2017. graf
Artigo em Inglês | LILACS, COLNAL | ID: biblio-1092991

RESUMO

Abstract Quality of life is impaired in patients with hemodialysis finding a lower quality of life in incidents patients, those who initiate or carry less than three months in renal replacement therapy, identifying common factors of elevated PTH, low rate body mass, anemia and use of catheter. Background: Chronic Kidney Disease (CKD) has increased its prevalence in recent years, from 44.7 patients per million in 1993 to 621 patients per million in 2012; patients who receive renal replacement therapy hemodialysis in Colombia have increasingly improved survival. The increase in the number of patients and the increase in the survival encourage us to improve the quality of life for dialysis years. Methodology: The quality of life was compared by SF-36 in 154 patients with end-stage CKD on hemodialysis management, 77 incidents patients and 77 prevalent patients who are part of a renal unit in Bogotá, Colombia. Results: All scales of quality of life in the entire population of hemodialysis patients have dropped. In the incident patients there is a lower quality of life compared to prevalent ones (p = 0.028) in this group the most relevant features were BMI <31, hb <11 g/dL and use of catheter, the scales of the SF-36 the most affected ones are those of physical component. Conclusions: The quality of life of dialysis patients is affected with greater impact on the group of incident patients, the nutritional aspects should be enhanced, hematological goal and early vascular access and vascular access in this group.


Resumen La calidad de vida de los pacientes en hemodiálisis se ve afectada. Entre ellos, los pacientes incidentes (aquellos que inician o llevan menos de tres meses en la terapia de reemplazo renal) poseen menor calidad de vida, en comparación con los pacientes prevalentes, y presentan factores como: PTH elevada, bajo índice de masa corporal, anemia y uso de catéter. Introducción: la enfermedad renal crónica (ERC) ha aumentado su prevalencia en los últimos años: ha pasado de ser padecida por 44,7 pacientes por millón en 1993, a ser padecida por 621 pacientes por millón en 2012. Los pacientes que reciben hemodiálisis de terapia de reemplazo renal en Colombia han aumentado sus posibilidades de supervivencia. El aumento del número de pacientes y el aumento de su pervivencia nos animan a mejorar la calidad de vida durante los años de diálisis. Metodología: la calidad de vida fue comparada por SF-36 en 154 pacientes con ERC terminal en manejo de hemodiálisis, 77 pacientes incidentes y 77 pacientes prevalentes, que forman parte de una unidad renal en Bogotá, Colombia. Resultados: se han reducido todas las escalas de calidad de vida en toda la población de pacientes en hemodiálisis. Los pacientes incidentes tienen menor calidad de vida en comparación con los prevalentes (p = 0,028). En este grupo, las características más relevantes fueron IMC < 31, hb < 11 g / dL y el uso de catéter. De las escalas del SF-36, los más afectados son los componentes físicos. Conclusiones: la calidad de vida de los pacientes en diálisis se ve afectada con mayor impacto en el grupo de pacientes incidentes. Para este grupo, los aspectos nutricionales deben ser mejorados, así como el acceso vascular tipo fístula debe ser realizado pre diálisis y las meta de hemoglobina deben ser mayor de 11 g/dL.


Assuntos
Humanos , Masculino , Feminino , Pacientes , Qualidade de Vida , Prevalência , Diálise Renal , Colômbia , Insuficiência Renal Crônica
13.
Immunol Res ; 65(1): 99-105, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-27465467

RESUMO

Human papillomavirus vaccine (HPVv) is used worldwide for prevention of infection. However several reports link this vaccine, with immune-mediated reactions, especially with neurological manifestations. Our previous results showed that HPVv-Gardasil and aluminum-immunized mice developed behavioral impairments. Studies have shown a positive effect of phospholipid supplementation on depression and cognitive functions in mice. Therefore, our goal was to evaluate the effect of a dietary supplement on vaccine-induced depression. Sixty C57BL/6 female mice were immunized with HPVv-Gardasil, aluminum or the vehicle (n = 20 each group), and half of each group were fed 5 times per week with 0.2 ml of a dietary supplement enriched with phosphatidylcholine. The mice were evaluated for depression at 3 months of age, by the forced swimming test. Both the Gardasil and the aluminum-treated mice developed depressive-like behavior when compared to the control group. The HPVv-Gardasil-immunized mice supplemented with phosphatidylcholine significantly reduced their depressive symptoms. This study confirms our previous studies demonstrating depressive-like behavior in mice vaccinated with HPVv-Gardasil. In addition, it demonstrates the ability of phosphatidylcholine-enriched diet to attenuate depressive-like behavior in the HPVv-Gardasil-vaccinated mice. We suggest that phosphatidylcholine supplementation may serve as a treatment for patients suffering vaccine-related neurological manifestations.


Assuntos
Adjuvantes Imunológicos/efeitos adversos , Adjuvantes Farmacêuticos/efeitos adversos , Hidróxido de Alumínio/efeitos adversos , Depressão/tratamento farmacológico , Vacina Quadrivalente Recombinante contra HPV tipos 6, 11, 16, 18/efeitos adversos , Fosfolipídeos/uso terapêutico , Animais , Comportamento Animal/efeitos dos fármacos , Depressão/etiologia , Suplementos Nutricionais , Feminino , Camundongos , Camundongos Endogâmicos C57BL , Atividade Motora/efeitos dos fármacos , Natação , Vacinação
14.
Front Immunol ; 7: 139, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27199979

RESUMO

Autoimmune diseases (ADs) represent a heterogeneous group of disorders that affect specific target organs or multiple organ systems. These conditions share common immunopathogenic mechanisms (i.e., the autoimmune tautology), which explain the clinical similarities they have among them as well as their familial clustering (i.e., coaggregation). As part of the autoimmune tautology, the influence of environmental exposure on the risk of developing ADs is paramount (i.e., the autoimmune ecology). In fact, environment, more than genetics, shapes immune system. Autoimmune ecology is akin to exposome, that is all the exposures - internal and external - across the lifespan, interacting with hereditary factors (both genetics and epigenetics) to favor or protect against autoimmunity and its outcomes. Herein, we provide an overview of the autoimmune ecology, focusing on the immune response to environmental agents in general, and microbiota, cigarette smoking, alcohol and coffee consumption, socioeconomic status (SES), gender and sex hormones, vitamin D, organic solvents, and vaccines in particular. Inclusion of the autoimmune ecology in disease etiology and health will improve the way personalized medicine is currently conceived and applied.

15.
J Immunol Res ; 2015: 270763, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26090487

RESUMO

OBJECTIVE: Rheumatoid arthritis (RA) is the most common autoimmune arthropathy worldwide. The increased prevalence of cardiovascular disease (CVD) in RA is not fully explained by classic risk factors. The aim of this study was to determine the influence of rs1058587 SNP within GDF15(MIC1) gene on the risk of CVD in a Colombian RA population. METHODS: This was a cross-sectional analytical study in which 310 consecutive Colombian patients with RA and 228 age- and sex-matched controls were included and assessed for variables associated with CVD. The mixed cluster methodology based on multivariate descriptive methods such as principal components analysis and multiple correspondence analyses and regression tree (CART) predictive model were performed. RESULTS: Of the 310 patients, 87.4% were women and CVD was reported in 69.5%. Significant differences concerning GDF15 polymorphism were not observed between patients and controls. Mean arterial pressure, current smoking, and some clusters were significantly associated with CVD. CONCLUSION: GDF15 (rs1058587) does not influence the development of CVD in the population studied.


Assuntos
Artrite Reumatoide/genética , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/genética , Fator 15 de Diferenciação de Crescimento/genética , Polimorfismo Genético/genética , Adulto , Idoso , Estudos de Casos e Controles , Estudos Transversais , Feminino , Humanos , América Latina , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Adulto Jovem
16.
Clin Endocrinol (Oxf) ; 83(6): 943-50, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25382266

RESUMO

OBJECTIVES: To determine the prevalence and the predictive factors of autoimmune hypothyroidism (AH) within a systemic lupus erythematosus (SLE) cohort and to analyse the current information concerning the prevalence and impact of autoimmune thyroid disease (AITD) and thyroid autoimmunity in patients with SLE. METHODS: A total of 376 patients with SLE were assessed for the presence of the following: (i) confirmed AH, (ii) positive thy-roperoxidase/thyroglobulin antibodies [TPOAb/TgAb] without hypothyroidism, (iii) nonautoimmune hypothyroidism and (iv) SLE patients with neither. Multivariate analysis and a classification and regression tree model were used to analyse data. The current information was discussed through a systematic literature review (SLR). RESULTS: In our cohort, the prevalence of confirmed AH was 12%. However, in euthyroid patients with SLE, TPOAb and TgAb were observed in 21% and 10%, respectively. Patients with confirmed AH were significantly older and had later age at onset of the disease. Smoking (adjusted odds ratio (AOR) 6·93, 95% CI 1·98-28·54, P = 0·004), Sjögren's Syndrome (SS) (AOR 23·2, 95% CI 1·89-359·53, P = 0·015) and positivity for anticyclic citrullinated peptide (anti-CCP) (AOR 10·35, 95% CI 1·04-121·26, P = 0·047) were associated with AH-SLE, regardless of gender and duration of the disease. Smoking and SS were confirmed as predictors of AH-SLE. In the SLR, the prevalence of AITD ranged from 1% to 60%. The factors associated with this polyautoimmunity were female gender, older age, smoking, certain autoantibodies, SS, and cutaneous and articular involvement. CONCLUSIONS: AITD is frequent in SLE and does not affect the severity of SLE. Identified risk factors will assist clinicians in the search for AITD. Our results encourage smoke-free policies in patients with SLE.


Assuntos
Doença de Hashimoto/etiologia , Lúpus Eritematoso Sistêmico/complicações , Tireoidite Autoimune/etiologia , Adolescente , Adulto , Autoimunidade/fisiologia , Estudos Transversais , Feminino , Doença de Hashimoto/patologia , Humanos , Hipotireoidismo/etiologia , Hipotireoidismo/patologia , Lúpus Eritematoso Sistêmico/patologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Tireoidite Autoimune/patologia , Adulto Jovem
17.
Autoimmune Dis ; 2013: 794383, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24294522

RESUMO

Objective. This study was performed to determine the prevalence of and associated risk factors for cardiovascular disease (CVD) in Latin American (LA) patients with systemic lupus erythematosus (SLE). Methods. First, a cross-sectional analytical study was conducted in 310 Colombian patients with SLE in whom CVD was assessed. Associated factors were examined by multivariate regression analyses. Second, a systematic review of the literature on CVD in SLE in LA was performed. Results. There were 133 (36.5%) Colombian SLE patients with CVD. Dyslipidemia, smoking, coffee consumption, and pleural effusion were positively associated with CVD. An independent effect of coffee consumption and cigarette on CVD was found regardless of gender and duration of disease. In the systematic review, 60 articles fulfilling the eligibility criteria were included. A wide range of CVD prevalence was found (4%-79.5%). Several studies reported ancestry, genetic factors, and polyautoimmunity as novel risk factors for such a condition. Conclusions. A high rate of CVD is observed in LA patients with SLE. Awareness of the observed risk factors should encourage preventive population strategies for CVD in patients with SLE aimed at facilitating the suppression of cigarette smoking and coffee consumption as well as at the tight control of dyslipidemia and other modifiable risk factors.

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