Soluble factors in COVID-19 mRNA vaccine-induced myocarditis causes cardiomyoblast hypertrophy and cell injury: a case report.

BACKGROUND: Inflammation affecting the heart and surrounding tissues is a clinical condition recently reported following COVID-19 mRNA vaccination. Assessing trends of these events related to immunization will improve vaccine safety surveillance and best practices for forthcoming vaccine campaigns. However, the causality is unknown, and the mechanisms associated with cardiac myocarditis are not understood. CASE PRESENTATION: After the first dose, we reported an mRNA vaccine-induced perimyocarditis in a young patient with a history of recurrent myocardial inflammation episodes and progressive loss of cardiac performance. We tested this possible inflammatory cytokine-mediated cardiotoxicity after vaccination in the acute phase (ten days), and we found a significant elevation of MCP-1, IL-18, and IL-8 inflammatory mediators. Still, these cytokines decreased considerably at the recovery phase (42 days later). We used the cardiomyoblasts cell line to test the effect of serum on cell viability, observing that serum from the acute phase reduced the cell viability to 75%. We did not detect this toxicity in cells when we tested serum from the patient in the recovery phase. We also tested serum-induced hypertrophy, a phenomenon in myocarditis and heart failure. We found that acute phase-serum has hypertrophy effects, increasing 25% of the treated cardiac cells' surface and significantly increasing B-type natriuretic peptide. However, we did not observe the hypertrophic effect in the recovery phase or sera from healthy controls. CONCLUSION: Our results opened the possibility of the inflammatory cytokines or serum soluble mediators as key factors for vaccine-associated myocarditis. In this regard, identifying anti-inflammatory molecules that reduce inflammatory cytokines could help avoid vaccine-induced myocardial inflammation.

Differences between surviving and non-surviving venous thromboembolism COVID-19 patients: a systematic review.

BACKGROUND: To our knowledge, the treatment, outcome, clinical presentation, risk stratification of patients with venous thromboembolism and COVID-19 have not been well characterized. METHODS: We searched for systematic reviews, cohorts, case series, case reports, editor letters, and venous thromboembolism COVID-19 patients' abstracts following PRISMA and PROSPERO statements. We analyzed therapeutic approaches and clinical outcomes of venous thromboembolism COVID-19 patients. Inclusion: COVID-19 patients with venous thromboembolism confirmed by an imaging method (venous doppler ultrasound, ventilation-perfusion lung scan, computed tomography pulmonary angiogram, pulmonary angiography). We assessed and reported the original Pulmonary Embolism Severity Index for each pulmonary embolism patient. In addition, we defined major bleedings according to the International Society of Thrombosis and Haemostasis criteria. RESULTS: We performed a systematic review from August 9 to August 30, 2020. We collected 1,535 papers from PubMed, Scopus, Web of Science, Wiley, and Opengrey. We extracted data from 89 studies that describe 143 patients. Unfractionated and low-molecular-weight heparin was used as parenteral anticoagulation in 85/143 (59%) cases. The Food and Drug Administration-approved alteplase regimen guided the advanced treatment in 39/143 (27%) patients. The mortality was high (21.6%, CI 95% 15.2-29.3). The incidence of major bleeding complications was 1 (0.9%) in the survival group and 1 (3.2%) in the death group. Pulmonary Embolism Severity Index was class I in 11.6% and II in 22.3% in survivors compared to 0% and 6.5% in non-survivors, respectively. Patients who experienced venous thromboembolism events at home were more likely to live than in-hospital events. CONCLUSIONS: We determined a high mortality incidence of pulmonary embolism and a low rate of bleeding. Unfractionated and low-molecular-weight heparin drove parenteral anticoagulation and alteplase the advanced treatment in both groups. The original Pulmonary Embolism Severity Index could be helpful in the risk stratification.

Tratamiento farmacológico de la diabetes mellitus tipo 2 dirigido a pacientes con sobrepeso y obesidad / Pharmacological treatment of diabetes mellitus type 2 directed to patients with overweight and obesity

Resumen La diabetes mellitus tipo 2 es una enfermedad multifactorial y de carácter crónico que requiere un tratamiento integral a lo largo de la vida del paciente y con necesidad de ajustes constantes de acuerdo con los requerimientos específicos de cada paciente. Se ha identificado que la disminución de peso en pacientes diabéticos puede retrasar la progresión de la enfermedad e incluso retrasar o evitar su aparición. Además de ser un factor benéfico en las metas de tratamiento de los pacientes diabéticos, la disminución del peso puede lograr cambios clínicamente significativos en las concentraciones totales de glucosa sérica, hemoglobina glucosilada (HbA1C) y en las concentraciones de triglicéridos. En la actualidad las recomendaciones basadas en evidencia están dirigidas a la intervención farmacológica, quirúrgica y cambios en el estilo de vida en el manejo de la obesidad como parte del tratamiento integral de los pacientes con diabetes mellitus tipo 2. Los tratamientos farmacológicos tradicionales contra la diabetes mellitus tipo 2 pueden aumentar aún más el peso y esto puede disminuir los beneficios del control glucémico adecuado. Es importante identificar la injerencia de cada grupo de fármacos en el peso.

Abstract Diabetes mellitus type 2 (DM2) is a chronic and multifactorial disease that requires an integral treatment throughout the life of the patient and in need of constant adjustments according to specific requirements of each patient. It is well established that weight loss in diabetic patients may delay the progression of the disease or even delay its onset. In addition to being a beneficial factor in the treatment goals of diabetic patients, weight reduction can achieve clinically significant changes in serum glucose, glycated hemoglobin (HbA1c) and triglyceride levels. Evidence-based recommendations are currently aimed at pharmacological, surgical and lifestyle changes in the management of obesity as part of the comprehensive treatment of patients with diabetes mellitus type 2. Traditional pharmacological treatments for diabetes mellitus type 2 may further increase weight and this may decrease the benefits of adequate glycemic control. It's important to identify the interference of each drug group on weight.