The aim of this research – to study the expression of apoptosismolecular cell regulators from the BCL-2 family proteins:the antiapoptotic protein Bcl-2 and the proapoptoticprotein Bad in liver cells of male db/db mice at differentstages of obesity and DM2 development (at the age of 10 and18 weeks). The gene discussed is BCL2; the disease is Obesity.