Tóm tắt:

Insulin resistance is defined as a reduced biological response of target tissues to normal insulin levels and is a major mechanism leading to type 2 diabetes, particularly in obese individuals. Beyond obesity, other causes include medications (e.g., glucocorticoids, antiretrovirals, oral contraceptives), stress, pregnancy, dyslipidemia, insulin receptor autoantibodies (Type B insulin resistance), and genetic defects. Among genetic causes, mutations in the insulin receptor (INSR) gene can lead to severe insulin resistance known as Type A insulin resistance. This rare inherited disorder belongs to a spectrum of monogenic insulin resistance syndromes, including Donohue and Rabson-Mendenhall syndromes.