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INTRODUCTION: An amebic liver abscess is the most common presentation of extraintestinal amebiasis. This condition is the result of a parasite infection caused by Entamoeba histolytica. MATERIALS AND METHODS: We report a case of a 53-year-old male who presented with abdominal pain in the right upper quadrant, jaundice, and a 10-kg weight loss within a 1-month span. RESULTS AND CONCLUSION: A wide range of symptoms and findings in the imaging tests suggestive of neoplasia, elevated levels of CA 19-9 and CA 125, and the presentation of biliary peritonitis as a complication makes this case a challenge for its approach and management.

INTRODUÇÃO: O abcesso amebiano é a apresentação mais comum da amebíase extraintestinal. Esta condição é resultado da infeção pelo parasita Entamoeba histolytica. MATERIAIS E MÉTODOS: Reportamos um caso clínico de um homem de 53 anos com dor abdominal no quadrante superior direito, icterícia e emagrecimento de 10 kg em 1 mês. RESULTADOS E CONCLUSÕES: Os sintomas e os achados imagiológicos sugestivos de neoplasia, os níveis elevados de CA 19-9 e CA 125 e a apresentação como peritonite biliar tornam este caso um desafio de diagnóstico e abordagem clínica.

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BACKGROUND: Insulin resistance (IR) has been implicated in carcinogenesis, but there is no consensus regarding its involvement in ovarian cancer. We performed a systematic review and meta-analysis to evaluate the association between IR and ovarian cancer. METHODS: Searches were conducted in five databases for studies evaluating IR markers (levels of serum insulin, C peptide, insulin growth factor [IGF] 1 and IGF-binding proteins [IGFBPs], homeostatic model assessment insulin resistance, and quantitative insulin-sensitivity check index) and ovarian cancer risk. Study selection, data extraction and an assessment of risk of bias were performed independently by three researchers. The associations between IR markers and ovarian cancer were quantified as mean differences (MDs) or standardized MDs (SMDs) and their 95% CIs using random-effects models. RESULTS: Fourteen case-control studies satisfied our inclusion criteria (n=8130). There was little information on IR markers with the exception of the IGF system. Ovarian cancer was associated with lower IGF-1 levels (SMD -0.43ng/mL, 95% CI -0.67 to -0.18; p=0.0006), and lower IGFBP-3 levels (SMD -0.11ng/mL, 95% CI -0.21 to -0.00; p=0.04). However, ovarian cancer was associated with higher levels of IGFBP-2 and IGFBP-1 (MD 527.3ng/mL, 95%CI 473.6, 581.0; p<0.00001, and MD 3.47ng/mL, 95%CI 1.42, 5.52; p=0.0009 respectively). Subgroup analyses by menopausal status and age (≤55 vs >55y) for IGF-1 and IGFBP-3 showed the subgroups were similar, although heterogeneity remained high. CONCLUSION: The evidence suggests that levels of IGF-1 and IGFBP-3 are lower in patients with ovarian cancer. In contrast, higher levels of IGBP-2 and IGBP-1 are found in patients with ovarian cancer.

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In order to assess if an association exists between the risk of major depression (RMD) and physical activity (PA), controlling for demographic and academic variables in workers enrolled in undergraduate studies at a private university in Lima, Peru, we carried out a cross-sectional study of 1,111 people. We used the Major Depression Inventory (MDI) and the International Physical Activity Questionnaire (IPAQ) to measure RMD and PA, respectively. RMD prevalence was 4.2%. In the multiple regression model adjusted for age, gender, unemployment and hours of sleep, low levels of PA were associated with increased odds of RDM (OR: 2.15, 95% CI: 1.16 to 4.00). We conclude that there is an association between RMD and PA in the study population, independent of demographic and academics factors. Strategies to improve screening and development of longitudinal studies to assess causality are suggested.

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Con el objetivo de evaluar si existe asociación entre el riesgo de depresión mayor (RDM) y la actividad física (AF) controlado por variables sociodemográficas y académicas en trabajadores que cursan estudios de pregrado en una universidad privada de Lima, se desarrolló un estudio de corte transversal analítico en 1111 personas. Se utilizó el inventario de depresión mayor y el cuestionario internacional de actividad física, para medir RDM y AF, respectivamente. La prevalencia de RDM fue 4,2 %. En el modelo de regresión de múltiples variables - ajustado por edad, sexo, desempleo y horas de sueño- la AF baja se asocia con un incremento de la odds de RDM (OR 2,15; IC 95%:1,16û4,00). Se concluye que existe asociación entre la RDM y la AF en la población estudiada, la cual es independiente de factores sociodemográficos y académicos. Se sugieren mejorar estrategias de tamizaje y el desarrollo de estudios longitudinales para evaluar causalidad...

In order to assess if an association exists between the risk of major depression (RMD) and physical activity (PA), controlling for demographic and academic variables in workers enrolled in undergraduate studies at a private university in Lima, Peru, we carried out a cross-sectional study of 1,111 people. We used the Major Depression Inventory (MDI) and the International Physical Activity Questionnaire (IPAQ) to measure RMD and PA, respectively. RMD prevalence was 4.2%. In the multiple regression model adjusted for age, gender, unemployment and hours of sleep, low levels of PA were associated with increased odds of RDM (OR: 2.15, 95% CI: 1.16 to 4.00). We conclude that there is an association between RMD and PA in the study population, independent of demographic and academics factors. Strategies to improve screening and development of longitudinal studies to assess causality are suggested...

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