Abstract
Objective: To investigate the effect of GHRH on the cognitive function of OSAHS patients by detecting the serum GHRH levels and assessing their cognitive function in patients with OSAHS. Methods: A total of 70 moderate-severe OSAHS patientsand 32 adults with snoring from October 2013 to May 2017 were enrolled for overnight polysomnography(PSG) and cognitive function assessment. Blood samples were taken at the next morning and serum GHRH levels were measured by ELISA. Results: There was no significant difference between OSAHS group (318.73±186.66)pg/ml and control group (291.48±147.36)pg/ml. Compared with control group, the serum GHRH levels were significantly increased in OSAHS patients without cognitive impairment (370.31±197.33)pg/ml, and evidently decreased in those with cognitive impairment (193.63±70.97)pg/ml (both P<0.05). The cognitive function of OSAHS patients was influenced by serum GHRH levels (OR=0.42, 95%CI: 0.24-0.73), body mass index (OR=2.23, 95%CI: 1.03-4.79), and daily sleepiness score (OR=1.80, 95%CI: 1.04-3.09). Conclusion: Serum GHRH levels in patients with moderate-severe OSAHS may play a protective role in patients' cognitive function.
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