Association of serum 3-nitrotyrosine with carotid atherosclerosis in newly diagnosed type 2 diabetic patients / 中华内分泌代谢杂志

ABSTRACT

To investigate the association of serum 3-nitrotyrosine ( 3-NT ) with carotid atherosclerosis in newly diagnosed type 2 diabetic patients. 96 patients with newly diagnosed type 2 diabetes mellitus treated in the department of endocrinology of Tangshan Gongren Hospital were recruited, and were divided into two groups depending on their carotid atherosclerosis status as carotid atherosclerosis group ( CAS group, n = 54 ) and non-carotid atherosclerosis group ( NCAS group, n=42); while 51 healthy subjects without type 2 diabetes mellitus from the medical examination center were recruited as normal control group ( NC group, n=51) . Demographic and clinical data of all subjects were collected. Serum 3-NT levels were measured by Enzyme-Linked Immunosorbent Assay ( ELISA) . ( 1) The levels of 3-NT in CAS group and NCAS group were all higher than those in NC group, and the level of 3-NT in CAS group was higher than that in NCAS group (all P<0.05);(2) In type 2 diabetic patients, 3-NT was positively correlated with HbA1C and low density lipoprotein-cholesterol ( both P<0. 05); ( 3) Logistic regression analysis showed that age (OR=1.271, P=0.023), HbA1C(OR=1.812, P=0.005) , Hcy (OR=1.194, P=0.019), and 3-NT (OR=1.593, P=0.011) were risk factors of CAS in type 2 diabetic patients. Serum 3-NT was closely correlated with carotid atherosclerosis in newly diagnosed type 2 diabetic patients, suggesting that serum 3-NT may be involved in the carotid atherosclerosis of newly diagnosed type 2 diabetic patients.