Abstract
Obesity is associated with chronic persistent inflammation due to a pool of tissue macrophages that can penetrate the blood-brain barrier and cause neuroinflammation. The analysis of the association of CD14+CD163+ monocytes in the peripheral blood with cognitive functions in 56 obese children (mean age 11.95 (9.45; 14.45) years) was carried out. The control group consisted of 10 children (mean age 10.4 (9.3; 13.8) years). Standard deviation of the body mass index (SDS BMI) and height (SDS height) were calculated using WHO AnthroPlus software (for children of 6-19 years). Body composition was assessed using bioimpedance measurement. Mononuclear cells were isolated from whole blood by centrifugation on a Ficoll-Urografin density gradient (ρ=1.077 g/ml). The content of CD14+CD163+ monocytes in the peripheral blood was assessed by flow cytometry. To analyze cognitive functions, the intelligence coefficient (IQ) was calculated and a Russian adaptation of the Rey test was performed. We found an increase in the number of M2-polarized CD14+CD163+ monocytes in the peripheral blood with an increase in the obesity degree and in the presence of cognitive decline, as well as a negative correlation of the level of M2-polarized monocytes and IQ, taking into account the excess of visceral fat. The revealed data on the relationship of M2-polarized CD14+CD163+ peripheral blood monocytes with obesity in children and the development of neuropsychological deficiency confirm the role of peripheral visceral obesity and neuroinflammation.
Published Version
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