未经证实:脂肪因子是参与代谢整合的信号分子。在肥胖中观察到它们浓度的变化,代谢综合征,糖尿病和心血管疾病,以及内分泌失调。库欣综合征与代谢失调有关,但是脂肪因子在该实体和相关并发症中的意义在很大程度上是未知的。我们研究的目的是确定脂肪因子的浓度:胎球蛋白A,脂肪酸结合蛋白4(FABP4)和视黄醇结合蛋白4(RBP4)在库欣综合征中的作用,并评估它们与已建立的心血管和糖尿病风险标志物的关系。
UNASSIGNED:我们以横断面方式检查了21名患有库欣综合征的受试者和24名健康对照。静脉血液样本进行了脂肪因子分析,皮质醇,促肾上腺皮质激素,葡萄糖,胰岛素,糖化血红蛋白(HbA1c),甘油三酯,胆固醇组分,促甲状腺激素和游离甲状腺激素浓度。评估患者的体重指数(BMI),计算稳态模型评估-胰岛素抵抗和系统冠状动脉风险评估(SCORE)。
UNASSIGNED:我们发现胎球蛋白A的浓度较低,库欣综合征的FABP4和RBP4浓度高于对照组[156.4±60.0µg/mlvs260.7±49.6µg/ml;79.8(35.2-156.1)ng/mlvs27.9(17.1-36.7)ng/ml和34(30-37.7)mg/lvs25.8(23.6-27.7)mg/l,分别]。胎球蛋白A呈负相关,而FABP4和RBP4呈阳性,与尿游离皮质醇和促肾上腺皮质激素的浓度。胎球蛋白A与LDL-胆固醇呈正相关,对SCORE和HbA1c呈阴性。FABP4与BMI呈正相关,HbA1c和甘油三酯,RBP4与甘油三酯和收缩压呈正相关。
未经评估:皮质醇增多症中脂肪因子的浓度变化。需要进一步的研究来确定脂肪因子是否参与伴随库欣综合征的代谢并发症的发展或其次反映代谢失调。
Adipokines are signaling molecules involved in the integration of metabolism. Changes in their concentrations were observed in obesity, metabolic syndrome, diabetes mellitus and cardiovascular diseases, as well as endocrine disorders. Cushing\'s syndrome is associated with metabolic dysregulation, but the significance of adipokines in this entity and related complications is largely unknown. The aim of our study was to determine the concentrations of adipokines: fetuin A, fatty acid binding protein 4 (FABP4) and retinol binding protein 4 (RBP4) in Cushing\'s syndrome and to assess their relation to established cardiovascular and diabetes risk markers.
We examined 21 subjects with Cushing\'s syndrome and 24 healthy controls in a cross-sectional manner. Venous blood samples were analysed for adipokines, cortisol, adrenocorticotrophin, glucose, insulin, glycated haemoglobin (HbA1c), triglycerides, cholesterol fractions, thyrotropin and free thyroid hormones concentrations. Patients\' body mass index (BMI) was evaluated, homeostatic model assessment-insulin resistance and Systematic Coronary Risk Evaluation (SCORE) were calculated.
We found that the concentration of fetuin A was lower, while FABP4 and RBP4 concentrations were higher in Cushing\'s syndrome compared to controls [156.4 ± 60.0 µg/ml vs 260.7 ± 49.6 µg/ml; 79.8 (35.2-156.1) ng/ml vs 27.9 (17.1-36.7) ng/ml and 34 (30-37.7) mg/l vs 25.8 (23.6-27.7) mg/l, respectively]. Fetuin A correlated inversely, while FABP4 and RBP4 positively, with the concentrations of urinary free cortisol and adrenocorticotrophin. Fetuin A was positively related to LDL-cholesterol, and negatively to SCORE and HbA1c. FABP4 was associated positively with BMI, HbA1c and triglycerides, while RBP4 correlated positively with triglycerides and systolic blood pressure.
Adipokines\' concentrations change in hypercortisolism. Further research is needed to ascertain whether adipokines are involved in the development of metabolic complications accompanying Cushing\'s syndrome or secondarily reflect metabolic dysregulation.