9p21 Locus Polymorphisms: Risk and Severity Factors of Coronary Artery Disease in Venezuelan Patients

Abstract Background: The 9p21 region is the most relevant locus associated with coronary heart disease in different populations. However, there are no studies that prove that this region is a risk factor in the Venezuelan population. Objectives: To analyze whether or not the 9p21 rs1333049 polymorphism is a risk factor for acute myocardial infarction (AMI) in Venezuelan patients, as well as to investigate its correlation with cardiovascular risk factors (CVRF), age of occurrence, type and severity of infarction, and the correlation of the rs10757274 polymorphism with severity of coronary artery disease. Methods: This was an association study, including 487 unrelated Venezuelan individuals, grouped in 354 patients with AMI and 133 controls. The rs1333049 and rs10757274 polymorphisms were determined using the polymerase chain reaction (PCR) technique with sequence-specific primers. The analysis of association was determined using the SNPStats tool. The continuous variable description and the correlations were performed using the SPSS statistical software. Significance was established at p<0.05. Results: A positive correlation was observed between the rs1333049 polymorphism and the presence of hypertension ( r: 0.145, p: 0.006), and between hypertension and heart infarction ( r: 0.318, p: <0.0001). A positive correlation was found between the rs10757274 polymorphism and the number of coronary vessels that presented obstructive lesions in patients aged ≤ 55 years ( r: 0.276, p: 0.0078). Conclusion: The rs1333049 polymorphism at the 9p21 locus is correlated with hypertension in Venezuelan patients, while the rs10757274 polymorphism is associated with the progression of coronary atherosclerosis, suggested by the correlation with the number of coronary vessels that presented significant obstructive lesions.

[The impact of COVID-19 on urology restructuring and organization.] / Impacto de la COVID-19 sobre la reestructuración y organización en urología.

Desde que el 31 de diciembre de 2019, se informó el primer caso de neumonía de etiología desconocida en la ciudad de Wuhan (China), la humanidad desconocía cómo iba a cambiar la vida tal cual la conocíamos y los profundos cambios que se iban a suscitar. La Organización Mundial de la Salud (OMS) el 12 de enero de 2020 reporta una nueva cepa de coronavirus que causaba el Síndrome Respiratorio Agudo Severo CoronaVirus 2 (SARS-CoV-2) (1) caracterizado por un cuadro clínico que variaba desde el portador asintomático hasta casos mortales de neumonía, insuficiencia respiratoria y fallo multiorgánico...

Desde que el 31 de diciembre de 2019, se informó el primer caso de neumonía de etiología desconocida en la ciudad de Wuhan (China), la humanidad desconocía cómo iba a cambiar la vida tal cual la conocíamos y los profundos cambios que se iban a suscitar. La Organización Mundial de la Salud (OMS) el 12 de enero de 2020 reporta una nueva cepa de coronavirus que causaba el Síndrome Respiratorio Agudo Severo CoronaVirus 2 (SARS-CoV-2) (1)caracterizado por un cuadro clínico que variaba desde el portador asintomático hasta casos mortales de neumonía, insuficiencia respiratoria y fallo multiorgánico...

Influence of Baseline Physical Activity as a Modifying Factor on COVID-19 Mortality: A Single-Center, Retrospective Study.

INTRODUCTION: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection causes a severe respiratory disease with a 3% global mortality. In the absence of effective treatment, controlling of risk factors that predispose to severe disease is essential to reduce coronavirus disease 2019 (COVID-19) mortality. Large observational studies suggest that exercise can reduce the risk of all-cause and disease-specific mortality. The aim of this study was to analyze the influence of the baseline physical activity level on COVID-19 mortality METHODS: This is a retrospective cohort study that included patients between 18 and 70 years old, diagnosed with COVID-19 and hospitalized in our center between February 15 and April 15, 2020. After discharge all the patients included in the study were contacted by telephone. Baseline physical activity level was estimated using the Rapid Assessment of Physical Activity Scale questionnaire and patients were divided into two groups for comparison: sedentary patients (group 1) and active patients (group 2). RESULTS: During the study period 552 patients were admitted to our hospital and met the inclusion criteria. Global mortality in group 1 was significantly higher than in group 2 (13.8% vs 1.8%; p < 0.001). Patients with a sedentary lifestyle had increased COVID-19 mortality independently of other risk factors previously described (hazard ratio 5.91 (1.80-19.41); p = 0.003). CONCLUSION: A baseline sedentary lifestyle increases the mortality of hospitalized patients with COVID-19. This finding may be of great utility in the prevention of severe COVID-19 disease.