Dr. Tatiana Arefieva is the Head of the Laboratory of Cell Immunology (since 2015), the Institute of Experimental Cardiology, National Medical Research Center of Cardiology named after academician E.I. Chazov. She is a specialist in cellular physiology and immunology. Her research area is a comprehensive assessment of cellular immunity parameters, including blood lymphocyte subpopulations with regulatory and pro-inflammatory properties as well as immunophenotyping of monocytes and neutrophils in patients with cardiovascular diseases; also, the association between cellular immunity parameters and blood lipid spectrum. It involves the study of the immunotropic effects of lipid-lowering drugs. The contribution of the inflammatory and immune processes in the development of atherosclerosis and myocardial fibrosis is the main focus.