Association Between Serum Vitamin D Levels and Retinal Vascular Occlusion: A Systematic Review and Meta-Analysis.

Previous studies found seasonal variations in the incidence of retinal vascular occlusion (RVO), with more occurrence in winter. There is increasing evidence linking vitamin D deficiency and RVO. Therefore, we conducted a meta-analysis to evaluate the association between vitamin D levels and RVO.

Association between Helicobacter pylori infection and metabolic syndrome: a systematic review and meta-analysis.

Objective: To systematically review and quantify the effect of Helicobacter pylori (H. pylori) infection on the risk of metabolic syndrome (MS) and metabolic parameters in individuals with H. pylori infection.

Association between Helicobacter pylori infection and multiple sclerosis: A systematic review and meta-analysis.

Aim: To investigate the association between Helicobacter pylori infection and multiple sclerosis.

Methods: A comprehensive search of the databases including PubMed/MEDLINE and EMBASE was performed from their dates of inception to January 2016. Inclusion criteria were the observational studies in adult assessing the association between Helicobacter pylori infection and multiple sclerosis.

CK-MB Activity, Any Additional Benefit to Negative Troponin in Evaluating Patients with Suspected Acute Myocardial Infarction in the Emergency Department.

Background: Coronary heart disease is now the leading cause of death. Diagnosing myocardial infraction (MI) needs cardiac marker in case of equivocal clinical presentations and EKG interpretations. Troponin yields high sensitivity and specificity and could be used as a single screening assay.