Abstract:Objective To investigate the effect of serum BDNF and MG on cognitive function in patients with primary hypertension. Methods A total of 208 patients with primary hypertension admitted from July 2013 to July 2017 in our hospital were involved in this study. Another 208 cases of healthy volunteers without hypertension were selected as control group. Cognitive function was analyzed with the scores of IM, DLM, ATT, LF and STS. Association of serum BDNF and MG with cognitive function was determined. Results Concentration of BDNF was decreased while that of MG was increased significantly in study group when compared with the control group (P < 0.05). The scores of IM, DLM, ATT, LF and STS in the study group decreased compared with control group (P < 0.05). Positive correlation between serum BDNF and cognitive function including score of IM, DLM, ATT, LF, and STS scores were founded in study group (P < 0.05), while MG was negatively correlated with IM, DLM, ATT and STS scores in patients with hypertension (P < 0.05). Conclusion The cognitive function of hypertensive patients is positively correlated with circulating BDNF while is negatively correlated with MG, which may provide a new approach for the treatment of cognitive dysfunction in hypertensive patients.