san yuqing
Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, affiliated to Shanghai University of Traditional Chinese MedicineYueyang Hospital of Integrated Traditional Chinese and Western Medicine, affiliated to Shanghai University of Traditional Chinese Medicine
【】 Objective: to establish different sleep deprivation models using zebrafish to provide more reproducible and practical modeling reference solutions for basic research on insomnia. Methods: Zebrafish insomnia model was induced by two interventions: continuous light (150 lux) and light plus caffeine, and the zebrafish were randomly divided into control, light, combined and caffeine (100 μmol/l) groups. The difference in locomotor ability of zebrafish in each group was observed by using open field experiment and circadian rhythm behavioral experiment; the expression and secretion of related sleep genes and 5-HT neurotransmitter were detected by using Qpcr technology and Elisa technology. Results: 1. The sleep time of zebrafish in the light group was significantly reduced compared with that of the blank control group (P=0.01), and there was no statistically significant difference between the sleep time of zebrafish in the combined group and the caffeine group (see Table 1); the resting time of zebrafish during the daytime in the light group was significantly reduced compared with that of the blank control group (P<0.01), and the resting time during the daytime of zebrafish in the combined group and the caffeine group was increased (P<0.01) (Table 3). There was no statistically significant difference in the black light resting time of zebrafish in all groups (Table 3); the daytime moving distance of zebrafish in the light group was significantly increased compared with that of blank control group (P < 0.01), and the 10-h activity distance of zebrafish in the light group in the dark day was significantly increased compared with that of blank control group (P < 0.01), and there was no statistically significant difference in the dark day activity distance of zebrafish in the combined and caffeine groups (Table 4); and the sleep rounds of zebrafish in the light group was blank control group was significantly reduced (P < 0.01), and the sleep rounds of zebrafish in the combined and caffeine groups were significantly increased (P < 0.01) compared to the blank control group (Table 2).2. The percentage of swimming distance in the central region of the light group was reduced (P < 0.05) compared to the blank group, while the percentage of swimming distance in the central region of the caffeine group was significantly reduced (P < 0.01) compared to the light group (see Figure 6); the light group The percentage of swimming time in the central region was lower than that in the blank group (P < 0.05), while the percentage of swimming time in the central region was significantly lower in the caffeine group than that in the light group (P < 0.01) (Fig. 7).3. The expression of HTR1aa mRNA level in zebrafish in the light group was higher than that in the blank group at 6:00 a.m. and 12:00 p.m. (P < 0.05) (Figs. 10 and 11), and the expression of There was no statistically significant difference in the expression of HTR1ab mRNA levels between the light group and the combined group (P > 0.05) (Figs. 12 and 13); compared with the blank group, the amount of 5-HT secretion in the light group was reduced in both groups at 6:00 a.m. (P < 0.01), and at 12:00 p.m. the amount of 5-HT was reduced in both the light and combined groups (P < 0.01), and the amount in both groups remained lower than that in the blank group at 6:00 p.m. (P<0.01).