Introduction: Metabolic syndrome (MS) is a cluster of the most dangerous cardiovascular disease (CVD) risk factors based on abdominal obesity with consequential insulin resistance (IR) (1). Aim: To investigate correlation between hepatic steatosis presence, abdominal obesity and IR in patients with MS, and to investigate a possibility of using the ALT/AST ratio in hepatic steatosis and MS components estimate. Material and methods: A retrospective analysis which included medical records of 88 patients (46

Introduction: Acquired autoimmune myasthenia gravis (MG) is an autoimmune disease characterized by impairment of neuromuscular transmission. Antibodies to the nicotinic acetylcholine receptor (AChR) are detected in about 80% of patients with MG, while the remaining 20% of patients are seronegative. Increased titer of antibodies to muscle-specific tyrosine kinase (MuSK) has been detected in about 40-50% of so-called seronegative patients. The Aim: To investigate clinical expression and course of MuSK MG, an