RESUMEN
OBJECTIVE: The aim of the present study was to investigate whether oral problems, harmful oral habits, and sociodemographic factors are associated with the occurrence of stress in schoolchildren. MATERIALS AND METHODS: A case-control study nested within a cross-sectional study was conducted with a sample of 375 schoolchildren eight to ten years of age in the city of Diamantina, Brazil. The case group (with childhood stress) and control group (without childhood stress) were matched for age and sex at a 1:4 ratio (75 cases to 300 controls). Data collection involved the self-administration of a questionnaire by parents/caregivers addressing sociodemographic characteristics and the child's history of harmful oral habits. The children answered the Child Stress Scale (CSS) and underwent a clinical oral examination to determine the presence/absence of dental caries, malocclusion, and traumatic dental injuries. Data analysis involved the calculation of frequencies, the chi-square test, and conditional logistic regression (95% CI; p ≤ 0.05). RESULTS: The final adjusted conditional logistic regression model showed that dental caries (OR = 1.78, 95% CI: 1.01 - 3.14, p = 0.044) and biting objects (OR = 1.81, 95% CI: 1.02 - 3.22, p = 0.041) remained associated with stress in the schoolchildren analysed. CONCLUSION: The present results showed that children with dental caries and the habit of biting objects were more likely to have childhood stress. CLINICAL RELEVANCE: The study allows paediatric dentists to expand their knowledge with regards to the influence of oral problems and harmful habits on the occurrence of childhood stress and serves as a guide for decision-making related to oral problems in schoolchildren.
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Caries Dental , Estrés Psicológico , Humanos , Niño , Estudios de Casos y Controles , Femenino , Masculino , Estudios Transversales , Encuestas y Cuestionarios , Brasil/epidemiología , Estrés Psicológico/epidemiología , Caries Dental/epidemiología , Maloclusión/epidemiología , Factores de Riesgo , Traumatismos de los Dientes/epidemiologíaRESUMEN
Glioblastoma is the most common and aggressive primary brain tumor, characterized by its high chemoresistance and the presence of a cell subpopulation that persists under hypoxic niches, called glioblastoma stem-like cells (GSCs). The chemoresistance of GSCs is mediated in part by adenosine signaling and ABC transporters, which extrude drugs outside the cell, such as the multidrug resistance-associated proteins (MRPs) subfamily. Adenosine promotes MRP1-dependent chemoresistance under normoxia. However, adenosine/MRPs-dependent chemoresistance under hypoxia has not been studied until now. Transcript and protein levels were determined by RT-qPCR and Western blot, respectively. MRP extrusion capacity was determined by intracellular 5 (6)-Carboxyfluorescein diacetate (CFDA) accumulation. Cell viability was measured by MTS assays. Cell cycle and apoptosis were determined by flow cytometry. Here, we show for the first time that MRP3 expression is induced under hypoxia through the A2B adenosine receptor. Hypoxia enhances MRP-dependent extrusion capacity and the chemoresistance of GSCs. Meanwhile, MRP3 knockdown decreases GSC viability under hypoxia. Downregulation of the A2B receptor decreases MRP3 expression and chemosensibilizes GSCs treated with teniposide under hypoxia. These data suggest that hypoxia-dependent activation of A2B adenosine receptor promotes survival of GSCs through MRP3 induction.
Asunto(s)
Neoplasias Encefálicas , Glioblastoma , Proteínas Asociadas a Resistencia a Múltiples Medicamentos , Adenosina/metabolismo , Neoplasias Encefálicas/metabolismo , Resistencia a Antineoplásicos , Glioblastoma/metabolismo , Humanos , Hipoxia/metabolismo , Proteínas Asociadas a Resistencia a Múltiples Medicamentos/metabolismo , Células Madre Neoplásicas/metabolismo , Receptor de Adenosina A2B/metabolismo , Receptores Purinérgicos P1/metabolismoRESUMEN
A large number of experimental studies has demonstrated that angiotensin II (Ang II) is involved in key events of the inflammatory process. This study aimed to evaluate the role of Ang II type 1 (AT1) and Ang II type 2 (AT2) receptors on periodontitis. Methods: Experimental periodontitis was induced by placing a 5.0 nylon thread ligature around the second upper left molar of AT1 mice, no-ligature or ligature (AT1-NL and AT1-L), AT2 (AT2-NL or AT2-L) and wild type (WT-NL or L). Alveolar bone loss was scanned using Micro-CT. Cytokines, peptides and enzymes were analyzed from gingival tissues by Elisa and RT-PCR. Results: The blockade of AT1 receptor resulted in bone loss, even in healthy animals. Ang II receptor blockades did not prevent linear bone loss. Ang II and Ang 1-7 levels were significantly increased in the AT2-L (p < 0.01) group compared to AT2-NL and AT1-L. The genic expression of the Mas receptor was significantly increased in WT-L and AT2-L compared to (WT-NL and AT2-NL, respectively) and in AT1-L. Conclusions: Our data suggest that the receptor AT1 appears to be important for the maintenance of bone mass. AT2 receptor molecular function in periodontitis appears to be regulated by AT1.
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Pérdida de Hueso Alveolar/metabolismo , Enfermedades Mandibulares/metabolismo , Periodontitis/metabolismo , Receptor de Angiotensina Tipo 1/metabolismo , Receptor de Angiotensina Tipo 2/metabolismo , Pérdida de Hueso Alveolar/genética , Pérdida de Hueso Alveolar/patología , Angiotensina II/metabolismo , Animales , Modelos Animales de Enfermedad , Masculino , Enfermedades Mandibulares/genética , Enfermedades Mandibulares/patología , Ratones , Ratones Noqueados , Periodontitis/genética , Periodontitis/patología , Receptor de Angiotensina Tipo 1/genética , Receptor de Angiotensina Tipo 2/genéticaRESUMEN
BACKGROUND: Patients with Glioblastoma multiforme (GBM) have a five years survival of less than 5%, but the response to chemotherapy with alkylating agents can vary depending on the methylation status of O6-methylguanine-DNA-methyltransferase (MGMT). Genetic testing has limitations for routine use, while immunohistochemistry (IHC) offers a fast and affordable technique but with heterogeneous results in the literature. AIM: To evaluate MGMT expression by IHC in tumor tissue of Chilean patients with GBM. MATERIAL AND METHODS: Tumor samples of 29 patients with a pathological diagnosis of GBM were studied. We performed IHC staining and manual analysis of positive and negative cells for MGMT expression. A cut-off of at least 10% of cells expressing MGMT was used. Demographic and clinical features of patients were obtained from clinical records. RESULTS: The median number of cells counted per case was 692 (interquartile range [IQR] 492-928). Fifteen cases (52%) were positive for MGMT expression. Median overall survival was 5.3 months (IQR 3.4-12-8). The effect of MGMT expression on the therapeutic response was not studied since only 3 patients received chemotherapy. CONCLUSIONS: Our results are similar to international reports, but we were not able to determine the association between MGMT expression and therapeutic response.
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Biomarcadores de Tumor/metabolismo , Neoplasias Encefálicas/enzimología , Glioblastoma/enzimología , O(6)-Metilguanina-ADN Metiltransferasa/metabolismo , Adulto , Anciano , Biomarcadores de Tumor/genética , Neoplasias Encefálicas/genética , Chile , Femenino , Regulación Neoplásica de la Expresión Génica , Glioblastoma/genética , Humanos , Inmunohistoquímica , Masculino , Persona de Mediana Edad , O(6)-Metilguanina-ADN Metiltransferasa/genética , Pronóstico , Estudios Retrospectivos , Tasa de SupervivenciaRESUMEN
Immunohistochemistry (IHC) for O6-methylguanine-DNA-methyltransferase (MGMT) has shown heterogeneous results. Cell staining intensity has not been included as a quantifiable variable in IHC analyses. We performed MGMT IHC in 29 patients diagnosed as glioblastoma classifying cells into three categories based on nuclear staining intensity compared with adjacent endothelium. The median proportions of strong-moderate, weak and no staining cells were 10%, 16% and 71%, respectively. The proportion of positive cases for MGMT expression varies from 38% to 52% depending on the classification of weakly stained cells. This letter challenges previous studies that have not included intensity as a variable for IHC analysis.
Asunto(s)
Neoplasias Encefálicas , Metilasas de Modificación del ADN/metabolismo , Enzimas Reparadoras del ADN/metabolismo , Glioblastoma , Proteínas Supresoras de Tumor/metabolismo , ADN , HumanosRESUMEN
PURPOSE: In order to engage medical students and residents from public health centers to utilize the telemedicine features of surgery on their own smartphones and tablets as an educational tool, an innovative streaming system was developed with the purpose of streaming live footage from open surgeries to smartphones and tablets, allowing the visualization of the surgical field from the surgeon's perspective. The current study aims to describe the results of an evaluation on level 1 of Kirkpatrick's Model for Evaluation of the streaming system usage during gynecological surgeries, based on the perception of medical students and gynecology residents. METHODS: Consisted of a live video streaming (from the surgeon's point of view) of gynecological surgeries for smartphones and tablets, one for each volunteer. The volunteers were able to connect to the local wireless network, created by the streaming system, through an access password and watch the video transmission on a web browser on their smartphones. Then, they answered a Likert-type questionnaire containing 14 items about the educational applicability of the streaming system, as well as comparing it to watching an in loco procedure. This study is formally approved by the local ethics commission (Certificate No. 53175915.7.0000.5171/2016). RESULTS: Twenty-one volunteers participated, totalizing 294 items answered, in which 94.2% were in agreement with the items affirmative, 4.1% were neutral, and only 1.7% answers corresponded to negative impressions. Cronbach's α was .82, which represents a good reliability level. Spearman's coefficients were highly significant in 4 comparisons and moderately significant in the other 20 comparisons. CONCLUSIONS: This study presents a local streaming video system of live surgeries to smartphones and tablets and shows its educational utility, low cost, and simple usage, which offers convenience and satisfactory image resolution, thus being potentially applicable in surgical teaching.
Asunto(s)
Internet , Teléfono Inteligente , Procedimientos Quirúrgicos Operativos/educación , Telemedicina/instrumentación , Ingeniería Biomédica , Humanos , Estudiantes de Medicina , Encuestas y CuestionariosRESUMEN
OBJECTIVE: To analyze the validity evidence of the Brazilian version of the Cancer Behavior Inventory - Brief Version. METHOD: Methodological study, conducted between November and December 2021, with 140 patients undergoing hospital cancer treatment in João Pessoa, Paraíba, Brazil. Psychometric analyses were performed in the adapted version, using exploratory factor analysis and correlation with correlated constructs. RESULTS: A two-factor and 10-item model was evidenced. The cumulative variance explained about 61% the shared variance of the items. Satisfactory values were observed for the factors in the analyses of composite reliability (0.89 and 0.91, respectively), internal consistency (0.86 and 0.91, respectively) and ORION (0.89 and 0.85, respectively). The expected correlations of self-efficacy with quality of life (convergent) and with anxiety and depression (divergent) were evident. CONCLUSION: The Brazilian version of the instrument showed evidence of validity, being considered reliable to assess the self-efficacy of patients undergoing cancer treatment.
Asunto(s)
Neoplasias , Calidad de Vida , Humanos , Brasil , Reproducibilidad de los Resultados , Ansiedad/diagnóstico , Ansiedad/etiología , Psicometría , Encuestas y CuestionariosRESUMEN
Glioblastoma multiforme (GBM) cells are characterised by their extreme chemoresistance. The activity of multiple-drug resistance (MDR) transporters that extrude antitumor drugs from cells plays the most important role in this phenomenon. To date, the mechanism controlling the expression and activity of MDR transporters is poorly understood. Activity of the enzyme ecto-5'-nucleotidase (CD73) in tumor cells, which hydrolyses AMP to adenosine, has been linked to immunosuppression and prometastatic effects in breast cancer and to the proliferation of glioma cells. In this study, we identify a high expression of CD73 in surgically resected samples of human GBM. In primary cultures of GBM, inhibition of CD73 activity or knocking down its expression by siRNA reversed the MDR phenotype and cell viability was decreased up to 60% on exposure to the antitumoral drug vincristine. This GBM chemosensitization was caused by a decrease in the expression and activity of the multiple drug associated protein 1 (Mrp1), the most important transporter conferring multiple drug resistance in these cells. Using pharmacological modulators, we have recognized the adenosine A(3) receptor subtype in mediation of the chemoresistant phenotype in these cells. In conclusion, we have determined that the activity of CD73 to trigger adenosine signaling sustains chemoresistant phenotype in GBM cells.
Asunto(s)
5'-Nucleotidasa/metabolismo , Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/metabolismo , Glioblastoma/tratamiento farmacológico , Glioblastoma/metabolismo , 5'-Nucleotidasa/antagonistas & inhibidores , 5'-Nucleotidasa/genética , Secuencia de Bases , Neoplasias Encefálicas/genética , Neoplasias Encefálicas/patología , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Resistencia a Múltiples Medicamentos/fisiología , Resistencia a Antineoplásicos/fisiología , Glioblastoma/genética , Glioblastoma/patología , Humanos , Proteínas Asociadas a Resistencia a Múltiples Medicamentos/genética , Proteínas Asociadas a Resistencia a Múltiples Medicamentos/metabolismo , ARN Mensajero/genética , ARN Mensajero/metabolismo , ARN Neoplásico/genética , ARN Neoplásico/metabolismo , ARN Interferente Pequeño/genética , Receptor de Adenosina A3/metabolismo , Transducción de Señal , Vincristina/farmacologíaRESUMEN
This study aimed to gather evidence on the adequacy of the General Health Questionnaire (GHQ-12) in Brazil, considering a random sample of Brazilian physicians. Specifically aimed: (1) to test the GHQ-12 bifactor structure compared to alternative models, (2) to check its factorial invariance regarding to gender and the diagnosis of mental and behavioral disorders, and (3) to know the association of this measure with indicators of poor health (e.g., suicidal thoughts, decreased libido, medication use). The study included 1,085 physicians with a mean age of 45.7 (SD = 10.6), mostly male (61.5%), married (72.6%) and Catholic (59.2%). They answered the GHQ-12, the Positive and Negative Suicidal Ideation Inventory, and demographic questions. The best fit model was the bifactor structure composed of anxiety and depression, in addition to a general dimension, which presented Cronbach's alpha, McDonald's ω and composite reliability higher than 0.70 just for a general fact. Psychological distress scores correlated with suicidal ideation and indicators of health and sexual satisfaction. This is a psychometrically suitable instrument that can be used in terms of its total, but its specific factors need to be used with caution.
Asunto(s)
Trastornos de Ansiedad , Ansiedad , Humanos , Masculino , Persona de Mediana Edad , Femenino , Reproducibilidad de los Resultados , Encuestas y Cuestionarios , Ansiedad/psicología , Estado de Salud , PsicometríaRESUMEN
Glioblastoma multiforme (GBM) is a brain tumour characterised by a remarkably high chemoresistance and infiltrating capability. To date, chemotherapy with temozolomide has contributed only poorly to improved survival rates in patients. One of the most important mechanisms of chemoresistance comes about through the activity of certain proteins from the ATP-binding cassette superfamily that extrudes antitumour drugs, or their metabolites, from cells. We identify an increased expression of the multiple drug resistance-associated protein 1 (Mrp1) in glioblastoma multiforme biopsies and in T98G and G44 cell lines. The activity of this transporter was also confirmed by measuring the extrusion of the fluorescent substrate CFDA. The sensitivity of GBM cells was low upon exposure to temozolomide, vincristine and etoposide, with decreases in cell viability of below 20% seen at therapeutic concentrations of these drugs. However, combined exposure to vincristine or etoposide with an inhibitor of Mrp1 efficiently decreased cell viability by up to 80%. We conclude that chemosensitization of cells with inhibitors of Mrp1 activity might be an efficient tool for the treatment of human GBM.
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Antineoplásicos Fitogénicos/farmacología , Antineoplásicos Fitogénicos/uso terapéutico , Neoplasias Encefálicas/tratamiento farmacológico , Línea Celular Tumoral/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Glioblastoma/tratamiento farmacológico , Proteínas Asociadas a Resistencia a Múltiples Medicamentos/antagonistas & inhibidores , Miembro 1 de la Subfamilia B de Casetes de Unión a ATP/antagonistas & inhibidores , Miembro 1 de la Subfamilia B de Casetes de Unión a ATP/genética , Miembro 1 de la Subfamilia B de Casetes de Unión a ATP/metabolismo , Transportador de Casetes de Unión a ATP, Subfamilia G, Miembro 2 , Transportadoras de Casetes de Unión a ATP/antagonistas & inhibidores , Transportadoras de Casetes de Unión a ATP/genética , Transportadoras de Casetes de Unión a ATP/metabolismo , Neoplasias Encefálicas/patología , Niño , Quimioterapia Combinada , Etopósido/farmacología , Etopósido/uso terapéutico , Glioblastoma/patología , Humanos , Proteínas Asociadas a Resistencia a Múltiples Medicamentos/genética , Proteínas Asociadas a Resistencia a Múltiples Medicamentos/metabolismo , Proteínas de Neoplasias/antagonistas & inhibidores , Proteínas de Neoplasias/genética , Proteínas de Neoplasias/metabolismo , ARN Interferente Pequeño/genética , ARN Interferente Pequeño/metabolismo , Vincristina/farmacología , Vincristina/uso terapéuticoRESUMEN
BACKGROUND: Mortality rate is dramatically high in high grade brain tumors. The presence of multiple drug resistance transporters in glioblastoma multiforme, has contributed largely to the poor efficacy of targeted therapy against cancer in the central nervous system. AIM: To analyze the percentage of survival and mortality of patients with glioblastoma multiforme in a cohort of patients in Chile and to co-rrelate the chemo-resistance of these cells with the expression level of multiple drug resistance transporters. MATERIALS AND METHODS: Eighteen biopsies of glioblastoma multiforme were obtained from patients at the Institute of Neurosurgery Dr. Asenjo (INCA). The tumor cells were obtained from primary cultures and the expression and activity of multiple drug resistance transporters was assessed by RT-PCR and immunohistochemistry. Population-based study was performed using the databases of the Department of Neurosurgery of INCA. RESULTS: The number of patients with glioblastoma multiforme increased between 2007 and 2009, from 3.5% to 7.9% of total brain tumors. Mortality of these tumors is 90 % at three years. A high expression and activity of the multiple drugs resistance associated protein 1 (Mrp1) transporter was observed in primary cultures of biopsies. CONCLUSIONS: We propose that Mrp1 activity is responsible for the chemo-resistance of the glioblastoma multiforme and inhibition of this transporter could represent a plausible strategy for the treatment.
Asunto(s)
Transportadoras de Casetes de Unión a ATP/metabolismo , Neoplasias Encefálicas/tratamiento farmacológico , Resistencia a Antineoplásicos , Glioblastoma/tratamiento farmacológico , Proteínas de Neoplasias/metabolismo , Adolescente , Adulto , Anciano , Neoplasias Encefálicas/metabolismo , Neoplasias Encefálicas/mortalidad , Niño , Preescolar , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Glioblastoma/metabolismo , Glioblastoma/mortalidad , Humanos , Inmunohistoquímica , Masculino , Persona de Mediana Edad , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Análisis de Supervivencia , Células Tumorales Cultivadas , Adulto JovenRESUMEN
Glioblastoma multiforme is one of the most malignant types of cancer. This is mainly due to a cell subpopulation with an extremely aggressive potential, called glioblastoma stem-like cells (GSCs). These cells produce high levels of extracellular adenosine which has been associated with increased chemoresistance, migration, and invasion in glioblastoma. In this study, we attempted to elucidate the mechanisms that control extracellular adenosine levels in GSC subtypes. By using primary and U87MG-derived GSCs, we associated increased extracellular adenosine with the mesenchymal phenotype. [3H]-adenosine uptake occurred mainly through the equilibrative nucleoside transporters (ENTs) in GSCs, but mesenchymal GSCs have lower expression and ENT1-mediated uptake activity than proneural GSCs. By analyzing expression and enzymatic activity, we determined that ecto-5'-nucleotidase (CD73) is predominantly expressed in proneural GSCs, driving AMPase activity. While in mesenchymal GSCs, both CD73 and Prostatic Acid Phosphatase (PAP) contribute to the AMP (adenosine monophosphate) hydrolysis. We did not observe significant differences between the expression of proteins involved in the metabolization of adenosine among the GCSs subtypes. In conclusion, the lower expression and activity of the ENT1 transporter in mesenchymal GSCs contributes to the high level of extracellular adenosine that these GSCs present.
Asunto(s)
Adenosina/metabolismo , Neoplasias Encefálicas/metabolismo , Tranportador Equilibrativo 1 de Nucleósido/metabolismo , Espacio Extracelular/metabolismo , Glioblastoma/metabolismo , Células Madre Neoplásicas/metabolismo , 5'-Nucleotidasa/metabolismo , Fosfatasa Ácida/metabolismo , Transporte Biológico , Neoplasias Encefálicas/patología , Línea Celular Tumoral , Proteínas Ligadas a GPI/metabolismo , Glioblastoma/patología , HumanosRESUMEN
Although dating applications (apps) have become popular among young adults, there is a dearth of information regarding the sexual health implications among Brazilian college students. This study examined risky sexual behavior and attitudes of dating app users, based on their sex in Brazil's Legal Amazon. Three hundred and fifty-nine students reported their sociodemographic data, dating app use, and sexual behaviors and attitudes through self-administered questionnaires. Bivariate analyses and analysis of variance (ANOVA) with Bonferroni post-hoc tests were performed. Dating app use was reported by 238 (66.3%) subjects, most of whom had an encounter and sex with a casual partner. Women frequently requested condom use. Trust in one's partner or having repeated encounters were the main reasons for engaging in risky sexual behavior. Men had a greater number of sexual partners and less protective attitudes. Sexual health awareness by apps was not reported by 97% of women, and most of them were not tested for sexually transmitted infections. A positive attitude toward sexual health was not a predictor of safe sex. Important similarities and differences regarding risky sexual behaviors and attitudes were observed between the sexes, many of which correlated with increased sexual vulnerability during the sexual encounters arranged through the dating apps. This cross-sectional study supports efforts on sexual health promotion and sexual education implementation in the face of growing usage of apps among young adults for sexual matters.
Asunto(s)
Condones , Conocimientos, Actitudes y Práctica en Salud , Conducta Sexual , Estudiantes , Actitud , Brasil , Estudios Transversales , Femenino , Humanos , Masculino , Parejas Sexuales , Estudiantes/psicología , Encuestas y Cuestionarios , Adulto JovenRESUMEN
Resilience is the human capacity to adapt to adverse life situations; it can be enhanced by the action of various protective factors and one of the most important of these is social support. The objective of this study was to identify associations between resilience and sociodemographic variables (gender, age, income, marital status, housing arrangements and religion), as well as correlations between resilience and social support in a sample of 86 urban elderly people. A sociodemographic questionnaire, the Resilience Scale and the Social Support Scale were used. The mean age was 75.7 years (SD = 5.35), with a predominance of women (72.1%, n = 62). A high level of resilience (M = 134.37, SD = 16.6) and a moderate level of social support (M = 17.36, SD = 2.77) were observed in the elderly people. There was only a significant association between resilience and religion (χ2 = 0.30; p = 0.027). Only a weak and positive correlation was observed between the factor of independence and determination on the Resilience Scale with social support (p = 0.005). Linear regression analysis revealed that social support was not a predictive variable for the capacity of resilience in the researched group. It is necessary to create new research instruments that permit a more precise study of the protective effects of social support regarding the capacity for resilience in the elderly.
Resiliência é a capacidade humana de se adaptar às situações adversas de vida e pode ser potencializada pela ação dos fatores de proteção, dos quais se destaca o suporte social. Objetivou-se identificar associações entre a resiliência e variáveis sociodemográficas (sexo, idade, renda, estado civil, arranjo de moradia e religião) e correlações entre a resiliência e o suporte social, numa amostra de 86 idosos urbanos. Utilizaram-se um questionário sociodemográfico, a Escala de Resiliência e a Escala de Suporte Social. A média de idade foi de 75,7 anos (DP = 5,35), com predomínio de mulheres (72,1%; n = 62). Observou-se alta capacidade de resiliência nos idosos (M = 134,37; DP = 16,6) e moderado índice de suporte social (M = 17,36; DP = 2,77). Houve associação significativa apenas entre a resiliência e religião (χ2 = 0,30; p = 0,027). Foi observada apenas uma correlação fraca e positiva entre o fator independência e determinação da Escala de Resiliência com o suporte social (p = 0,005). A análise de regressão linear revelou que o suporte social não foi uma variável preditiva para a capacidade de resiliência no grupo pesquisado. É necessário criar novos instrumentos de pesquisa que possibilitem o estudo mais preciso dos efeitos protetores do suporte social sobre a capacidade de resiliência em idosos.
Asunto(s)
Religión , Resiliencia Psicológica , Apoyo Social , Población Urbana/estadística & datos numéricos , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Humanos , Renta , Modelos Lineales , Masculino , Factores Socioeconómicos , Encuestas y CuestionariosRESUMEN
ABSTRACT Objective: To analyze the validity evidence of the Brazilian version of the Cancer Behavior Inventory - Brief Version. Method: Methodological study, conducted between November and December 2021, with 140 patients undergoing hospital cancer treatment in João Pessoa, Paraíba, Brazil. Psychometric analyses were performed in the adapted version, using exploratory factor analysis and correlation with correlated constructs. Results: A two-factor and 10-item model was evidenced. The cumulative variance explained about 61% the shared variance of the items. Satisfactory values were observed for the factors in the analyses of composite reliability (0.89 and 0.91, respectively), internal consistency (0.86 and 0.91, respectively) and ORION (0.89 and 0.85, respectively). The expected correlations of self-efficacy with quality of life (convergent) and with anxiety and depression (divergent) were evident. Conclusion: The Brazilian version of the instrument showed evidence of validity, being considered reliable to assess the self-efficacy of patients undergoing cancer treatment.
RESUMEN Objetivo: Analizar las evidencias de validez de la versión brasileña del Cancer Behavior Inventory - Brief Version. Método: Estudio metodológico, realizado entre noviembre y diciembre de 2021, con 140 pacientes en tratamiento oncológico hospitalario en João Pessoa, Paraíba, Brasil. Se realizaron análisis psicométricos en la versión adaptada, mediante análisis factorial exploratorio y correlación con constructos correlacionados. Resultados: Se evidenció un modelo de 2 factores y 10 ítems. La varianza acumulada explicó alrededor del 61% de la varianza compartida de los ítems. Se observaron valores satisfactorios para los factores en el análisis de confiabilidad compuesta (0,89 y 0,91, respectivamente), consistencia interna (0,86 y 0,91, respectivamente) y ORION (0,89 y 0,85, respectivamente). Se evidenciaron las correlaciones esperadas de la autoeficacia con la calidad de vida (convergente) y con la ansiedad y la depresión (divergente). Conclusión: La versión brasileña del instrumento mostró evidencias de validez, siendo considerado confiable para evaluar la autoeficacia de pacientes en tratamiento oncológico.
RESUMO Objetivo: Analisar as evidências de validade da versão brasileira do Cancer Behavior Inventory - Brief Version. Método: Estudo metodológico, realizado entre os meses de novembro e dezembro de 2021, com 140 pacientes em tratamento oncológico hospitalar em João Pessoa, Paraíba, Brasil. Foram realizadas análises psicométricas na versão adaptada, mediante a análise fatorial exploratória e correlação com constructos correlacionados. Resultados: Evidenciou-se um modelo de 2 fatores e 10 itens. A variância acumulada explicou cerca de 61% da variância compartilhada dos itens. Foram observados valores satisfatórios para os fatores nas análises de confiabilidade composta (0,89 e 0,91, respectivamente), consistência interna (0,86 e 0,91, respectivamente) e ORION (0,89 e 0,85, respectivamente). Evidenciaram-se as correlações esperadas da autoeficácia com a qualidade de vida (convergente) e com a ansiedade e depressão (divergente). Conclusão: A versão brasileira do instrumento mostrou evidências de validade, sendo considerada como confiável para avaliar a autoeficácia dos pacientes em tratamento oncológico.
Asunto(s)
Artrogriposis , Neuropatía Hereditaria Motora y Sensorial , Síndromes de Compresión Nerviosa , Neuropatía Radial , Humanos , Músculo Esquelético/diagnóstico por imagen , Síndromes de Compresión Nerviosa/diagnóstico por imagen , Síndromes de Compresión Nerviosa/etiología , Síndromes de Compresión Nerviosa/cirugía , Nervio Radial , Neuropatía Radial/diagnóstico por imagen , Neuropatía Radial/etiologíaRESUMEN
This study sought to compare evidence of the factorial validity of the adapted version of the World Health Organization Quality of Life (WHOQOL-OLD) scale (three response options) with the original version of the scale. We included two populations of individuals age 60 years or older from northeast Brazil. The majority of participants were women who had an elementary-level education. The first population comprised 335 elderly persons who completed the original version of the scale, and the second was composed by 265 elderly persons who completed the shortened scale. Results indicated better adjusting on the reduced scale and showed items with lower error probability in assessment of elderly persons with lower quality of life.
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Abstract This study aimed to gather evidence on the adequacy of the General Health Questionnaire (GHQ-12) in Brazil, considering a random sample of Brazilian physicians. Specifically aimed: (1) to test the GHQ-12 bifactor structure compared to alternative models, (2) to check its factorial invariance regarding to gender and the diagnosis of mental and behavioral disorders, and (3) to know the association of this measure with indicators of poor health (e.g., suicidal thoughts, decreased libido, medication use). The study included 1,085 physicians with a mean age of 45.7 (SD = 10.6), mostly male (61.5%), married (72.6%) and Catholic (59.2%). They answered the GHQ-12, the Positive and Negative Suicidal Ideation Inventory, and demographic questions. The best fit model was the bifactor structure composed of anxiety and depression, in addition to a general dimension, which presented Cronbach's alpha, McDonald's ω and composite reliability higher than 0.70 just for a general fact. Psychological distress scores correlated with suicidal ideation and indicators of health and sexual satisfaction. This is a psychometrically suitable instrument that can be used in terms of its total, but its specific factors need to be used with caution.
Resumo Este estudo teve como objetivo reunir evidências sobre a adequação do Questionário de Saúde Geral (QSG-12) no Brasil, considerando uma amostra aleatória de médicos brasileiros. Especificamente, objetivou-se: (1) testar uma estrutura bifactor em comparação com modelos alternativos, (2) verificar invariância fatorial em relação ao gênero e ao diagnóstico de transtornos mentais e comportamentais, e (3) conhecer a associação com indicadores de saúde precária (por exemplo: pensamentos suicidas, diminuição da libido e uso de medicamentos). Participaram do estudo 1.085 médicos, com média de idade de 45,7 (DP = 10,6), maioria de sexo masculino (61,5%), casados (72,6%) e católicos (59,2%). Eles responderam ao QSG-12, ao Inventário de Ideação Suicida Positiva e Negativa e a questões demográficas. O modelo de melhor ajuste foi a estrutura bifactor (composta por ansiedade, depressão e uma dimensão geral), que apresentou alfa de Cronbach, ômega de McDonald e confiabilidade composta superior a 0,70 apenas para o fato geral. Pontuações de sofrimento psicológico se correlacionaram a ideação suicida e indicadores negativos de saúde e satisfação sexual. O instrumento foi psicometricamente adequado e pode ser utilizado em termos de sua pontuação total, mas seus fatores específicos precisam ser utilizados com cautela.
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O presente estudo teve como objetivo verificar os correlatos sociodemográficos da ideação suicida em uma amostra de paraibanos. O estudo contou com 215 participantes, com média de idade de 24,16 anos (DP= 8,02). A coleta foi realizada por meio de um questionário online divulgado nas redes sociais. Foram dispostas cinco questões relativas à ideação suicida, com respostas tipo Likert, além de um questionário sociodemográfico. Verificou-se que as pessoas que não trabalham, que não possuem filhos e que são solteiras apresentaram maior média de ideação suicida. Além disto, a ideação suicida aumentou para as pessoas de menor idade, menos anos de estudo e menor compromisso religioso. Estes resultados foram estatisticamente significativos (p < 0,05). Salienta-se que essa pesquisa não possui uma amostra representativa, mas pode guiar estudos mais robustos para investigar diferenças de ideação suicida entre grupos sociodemográficos.(AU)
The presente study aimed to verify the sociodemographic correlates of suicidal ideation in a sample of paraibanos. The study involved 215 participants, with a mean age of 24-16 years (SD = 8,02). The collection was carried through an online questionnaire disseminated on social networks. Five questions were asked regarding suicidal ideation, with Likert-type answers, in addition to a sociodemographic questionnaire. It was found that people who do not work, who do not have children and who are single had a higher mean of suicidal ideation. In addition, suicidal ideation has increased for younger people, with less years of study and less religious commitment. These results were statistically significant (p ≤ 0,05). It should be noted that this research does not have a representative sample, but it can guide more robust studies to investigate differences in suicidal ideation between sociodemographic groups.(AU)
El presente estudio tuvo como objetivo verificar los correlatos sociodemográficos de la ideación suicidio en una muestra de paraibanos. El estudio contó 215 participantes, con una edad media de 24,16 años (DE = 8,02). La recogida se llevó a cabo a través de un cuestionario en línea disponible en un enlace y difundido em las redes sociales. Se hicieron cinco preguntas sobre la ideación suicida, con respuestas tipo Likert, además de un cuestionario sociodemográfico. Se encontró que las personas que no trabajan, que no tienen hijos y que son solteros tuvieron un promedio más alto de ideación suicida. Además, la ideación suicida ha aumentado para las personas de menor edad, menos años de estudio y menos compromiso religioso. Estos resultados fueron estatiscamente significante (p ≤ 0,05). Cabe destacar que esta investigación no tiene una muestra representativa, pero puede orientar estudios más robustos para investigar diferencias en la ideación suicida entre grupos sociodemográficos.(AU)
Asunto(s)
Humanos , Adulto , Ideación Suicida , Factores Sociodemográficos , Salud MentalRESUMEN
Resumo Objetivo Analisar a educação sexual, comportamentos de risco e atitudes de universitários usuários de aplicativos de encontros, considerando a orientação sexual. Métodos Trata-se de um estudo de natureza quantitativa, transversal e descritivo, com uma amostra não probabilística de conveniência, constituída por 359 universitários da região norte do Brasil. Utilizou-se um questionário com informações sobre dados sociodemográficos, uso de aplicativos de encontros, fontes de informações sobre sexo seguro, comportamentos de risco e atitudes. Foram realizadas análises bivariadas e análise de variância com testes post-hoc de Bonferroni. Resultados Homossexuais (92,3%) e bissexuais (84,9%) reportaram o uso de aplicativos e tiveram encontro com parceiro casual (p<0,05). O Tinder foi o aplicativo acessado por 93,58% dos usuários. Não houve diferença para a prática sexual, sexo desprotegido e múltiplos parceiros sexuais. Informações sobre sexo seguro e infecções sexualmente transmissíveis por meio dos aplicativos foi reportada por homossexuais (61,1%) (p<0,05). Bissexuais (22,2%) vivenciaram a educação sexual nos eventos científicos e heterossexuais (38,2%) recorreram aos amigos universitários (p<0,05). Homossexuais (88,9%) acessaram o serviço do Centro de Testagem e Aconselhamento e 72,4% realizaram a testagem para infecções sexualmente transmissíveis após a prática sexual com parceiro casual (p<0,05). As atitudes positivas para a saúde sexual foram observadas nos heterossexuais não usuários de aplicativos de encontros. Conclusão A vulnerabilidade dos usuários de aplicativos de encontros não esteve associada com a orientação sexual. Intervenções por meio da educação sexual que estimulem o autoconhecimento e os riscos da prática sexual desprotegida são requeridas frente ao acesso às tecnologias para encontros casuais.
Resumen Objetivo Analizar la educación sexual, comportamientos de riesgo y actitudes de estudiantes universitarios usuarios de aplicaciones de citas, considerando la orientación sexual. Métodos Se trata de un estudio de naturaleza cuantitativa, transversal y descriptiva, con una muestra no probabilística de conveniencia, constituida por 359 estudiantes universitarios de la región norte de Brasil. Se utilizó un cuestionario con información sobre datos sociodemográficos, uso de aplicaciones de citas, fuentes de información sobre sexo seguro, comportamientos de riesgo y actitudes. Se realizaron análisis bivariados y análisis de varianza con ensayos post-hoc de Bonferroni. Resultados Homosexuales (92,3 %) y bisexuales (84,9 %) refirieron el uso de aplicaciones y tuvieron citas con pareja casual (p<0,05). Tinder fue la aplicación a la que el 93,58 % de los usuarios accedió. No hubo diferencias en la práctica sexual, sexo desprotegido y múltiples parejas sexuales. Información sobre sexo seguro y sobre infecciones de transmisión sexual por medio de las aplicaciones fue reportada por homosexuales (61,1 %) (p<0,05). Bisexuales (22,2 %) vivieron la educación sexual en los eventos científicos, y heterosexuales (38,2 %) recurrieron a sus amigos de la universidad (p<0,05). Homosexuales (88,9 %) accedieron al servicio del Centro de Testeo y de Consejo, y el 72,4 % realizó el testeo de infecciones sexualmente transmisibles después de la práctica sexual con pareja casual (p<0,05). Se observaron actitudes positivas hacia la salud sexual en los heterosexuales no usuarios de aplicaciones de citas. Conclusión La vulnerabilidad de los usuarios de aplicaciones de citas no estuvo asociada con la orientación sexual. Son necesarias intervenciones por medio de la educación sexual que estimulen el autoconocimiento y los riesgos de la práctica sexual desprotegida ante el acceso a las tecnologías para citas casuales.
Abstract Objective To analyze sex education, risk behaviors and attitudes of college students who use dating applications, considering their sexual orientation. Methods This is a quantitative, cross-sectional and descriptive study, with a non-probabilistic convenience sample, consisting of 359 college students from northern Brazil. A questionnaire was used with information on sociodemographic data, use of dating applications, sources of information on protected sex, risk behaviors and attitudes. Bivariate analyzes and analysis of variance with Bonferroni's post-hoc tests were performed. Results Homosexuals (92.3%) and bisexuals (84.9%) reported using applications and meeting with casual partners (p<0.05). Tinder was the application accessed by 93.58% of users. There was no difference for sexual practice, unprotected sex and multiple sexual partners. Information about protected sex and sexually transmitted infections through the applications was reported by homosexuals (61.1%) (p<0.05). Bisexuals (22.2%) experienced sex education in scientific events and heterosexuals (38.2%) turned to college friends (p<0.05). Homosexuals (88.9%) accessed the Testing and Counseling Center service and 72.4% were tested for sexually transmitted infections after having sex with a casual partner (p<0.05). Positive attitudes towards sexual health were observed in heterosexual non-dating application users. Conclusion Vulnerability of dating application users was not associated with sexual orientation. Interventions through sex education that stimulate self-knowledge and the risks of unprotected sexual practice are required in view of access to technologies for casual dates.