Welcome to this thematic issue of Annals of Translational Medicine on the recent advances of the ever-expanding field of molecular medicine. The present volume attempts to cover current genetic, molecular, or cellular aspects of main subject areas including microbiology, haematology, biomechanics, oncology, endocrinology, pharmacology, cardiology and hepatology. It is primarily focused on recent developments on molecular biomarkers and current technologies that elucidate disease pathogenesis and may lead to the design of specific tools for diagnosis, treatment, or disease prevention.