Correlation analysis of cognitive dysfunction and fluctuations in serum fibroblast growth factor 21 (FGF21) levels in the overweight group

作者：G Lyu, Xiaoli Lü, Qichang Meng, Yanyan Liu, Shuyan Liu, Jieyi Liu, Dong Peng · 发表于：Journal of Medical Biochemistry · 年份：2025 · DOI：10.5937/jomb0-59295 · 研究领域：Fibroblast Growth Factor Research、Epigenetics and DNA Methylation

Background: To explore the changing characteristics of cognitive function in overweight/obese (OWO) adolescents and analyse its relationship with the level of serum fibrob-last growth factor 21 (FGF21). Methods: A total of 175 adolescents were selected and divided into a normal body mass index (BMI) group (n = 50), an overweight BMI group (n = 50), and an obese BMI group (n=75). All participants underwent assessment of anthro-pometric indicators (height, weight, waist circumference, BMI Z score). Fasting venous blood was collected to meas-ure the level of serum FGF21 (by enzyme-linked immuno-sorbent assay (ELISA)), as were metabolic parameters such as fasting plasma glucose (FPG), fasting insulin (FINS), gly-cated haemoglobin (HbA1c), and lipid profiles (TC, TG, LDL-C, HDL-C). Overall cognitive function was evaluated via the Chinese version of the Montreal Cognitive Assess-ment Foundation Scale (MoCA-B), executive function was assessed via the Wisconsin Card Sorting Test (WCST) (with a focus on analysing the number of persistent errors/PE and the number of completed classifications/CC), and working memory was evaluated via the number span test (DST). Independent sample t tests or Mann Whitney U tests were used to compare the differences between groups. Pearson or Spearman correlation analysis was used to explore the relationships between serum FGF21 levels and cognitive indicators and metabolic parameters. Multiple linear regres-sion was used to analyse the independent associ...