Introduction: Obesity is a chronic fatal disease with still growing incidence among children, adolescents, and adults worldwide. The subclinical inflammatory process together with hipoadiponectinemia may lead to the development of various comorbidities, including cardiovascular complications. That is why, the relationship between adipose tissue activity, obesity, insulin resistance, and endothelial function is in high interest and an object of extensively studies. Aim of the study: This article summarizes the current knowledge on the anti-atherogenic effects of adiponectin and its properties to improve endothelial function in obesity-related insulin resistance. Description of knowledge: Adiponectin, an adipose tissue-derived pleiotropic hormone with anti-inflammatory, anti-atherogenic, anti-diabetic, and insulin-sensitizing actions, is not only engaged in modulation of type 2 diabetes mellitus, hypertension or coronary artery disease, but the latest researches highlight its role in improving vascular wall integrity. It affects complex signaling pathways in endothelial cells and influence inflammatory responses in the subendothelial space. Pre-clinical and clinical studies suggest that agents leading to increase in adiponectin levels, simultaneously contribute to decrease insulin resistance, and improve endothelial dysfunction. Conclusions: Adiponectin may be a predictive factor of endothelial dysfunctionality and vascular remodeling development in the group of patients with overweight, obesity, and insulin resistance. Discovering pharmacological agents and non-pharmacological interventions that increase the level of circulating adiponectin will become novel and innovative therapeutic strategy to ameliorate obesity-related comorbidities. Therefore, further studies are required to determine the exact role of adiponectin in the pathogenesis of metabolic diseases.

Graves’ orbitopathy (GO) is an autoimmune disease with a chronic inflammatory background. Smoking behavior is the main environmental factor responsible for the transition of this major extra thyroidal manifestation of Graves’ disease (GD) from the subclinical to the overt form. Complete blood count-derived parameters are suggested to be novel inflammatory indices. The aim of this retrospective study was to investigate the association between neutrophil-to-lymphocyte (NLR), monocyte-to-lymphocyte (MLR), and platelet-to-lymphocyte ratios (PLR) with selected clinical parameters and smoking status in 406 GD patients with (n = 168) and without GO (n = 238). The control group consisted of 100 healthy individuals. The activity of GO was graded according to Clinical Activity Score. Significantly higher white blood cells (WBC), neutrophil, and NLR (p < 0.05) values were observed in GD patients with GO compared with those without GO. PLR values were significantly higher in GO patients than in the controls. WBC (6.81 ± 1.56 vs. 5.70 ± 1.23) and neutrophils (3.89 ± 1.06 vs. 3.15 ± 0.95) count was higher in active GO patients than in those with inactive GO. Positive correlation (p < 0.05) between CAS score and WBC, neutrophil and monocyte count, and NLR was found. Smoking was associated with higher WBC (p = 0.040), neutrophil (p = 0.049), PLR (p = 0.032) values. Multivariate analysis revealed that WBC, NLR may be risk factors for GO development. WBC, neutrophil, NLR and PLR values seem to be useful tools in the assessment of inflammation in GD.

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