1.The regulating and mediating effects of resilience on the influence of job resources on anxiety of nur-ses
Xin GUO ; Jing WANG ; Jingjuan PANG ; Yueying LU ; Shaobo LYU ; Lina LI ; Haoxin LIU ; Jie YUAN
Chinese Journal of Behavioral Medicine and Brain Science 2018;27(6):551-555
Objective To explore the relationship between job resources and anxiety on nurses,and investigate the moderating and mediating effects of resilience on job resources and anxiety. Methods Chi-nese nurses ( n=560) from some departments of four hospitals in tangshan city were recruited by random sampling method and interviewed by job resources questionnaire,Connor-Davidson resilience scale and self-rating anxiety scale. Results The scores of nurses'anxiety,resilience and job resources were 40.82±9.63, 9.45±1.82,and 93.24±16.61 respectively.The resilience,job resources and its dimensions were negatively correlated to nurses'anxiety (P<0.05).Resilience played moderating role in the relationship between nurses'anxiety and work autonomy(β=0.168,P<0.01).Resilience served to mediate the relationship between nurses'anxiety and performance feedback,career development opportunities (P<0.05). The mediating effect value of performance feedback and career development opportunities on nurses' anxiety were -0.115881 and-0.068052 respectively ,which were 41.26% and 32.71% of the total effect respectively. Conclusion Job resources and resilience are closely related to nurses'anxiety.Resilience plays partially moderating and medi-ating role in the relationship between nurses'anxiety and job resources.
2.Vaspin improves insulin sensitivity in type 2 diabetes rats by regulating the polarization of adipose tissue macrophages
Shaobo PANG ; Shiwei LIU ; Ruixue DUAN ; Yuxiang ZHAO
Chinese Journal of Endocrinology and Metabolism 2024;40(2):145-157
Objective:This study aimed to explore the effect of Vaspin on adipose tissue macrophage polarization and its underlying mechanism.Methods:Fifty male SD rats, aged 8 weeks, were chosen and randomly allocated into three groups: the normal control(NC), the type 2 diabetes(T2DM), and various concentrations of Vaspin intervention(V1: 480 ng/kg, V2: 960 ng/kg, V3: 1 440 ng/kg). Vaspin was administered via intraperitoneal injection for 8 weeks. Glucose tolerance and insulin sensitivity were evaluated via intraperitoneal glucose tolerance test(IPGTT), intraperitoneal insulin tolerance test(IPITT) and hyperinsulinemic-euglycemic clamp. Adipose tissue inflammation and macrophage polarization were assessed using immunofluorescence, RT-PCR and western blotting.Results:After 8 weeks of intervention, there were no statistically significant differences in body weight and blood lipid levels among groups. IPGTT, IPITT, and hyperinsulinemic-euglycemic clamp experiments demonstrated that Vaspin intervention improved blood glucose and insulin sensitivity, exhibiting a dose-dependent manner( P<0.05). IF and RT-PCR showed that Vaspin downregulated the expression of CD11c, IL-1β, and TNF-α in eWAT, while upregulating the expression of CD206, IL-10, and PPARγ, which correlated with Vaspin concentration( P<0.05). ELISA revealed that Vaspin intervention reduced the concentrations of IL-1β and TNF-α in serum, while increasing the concentration of IL-10( P<0.05). Western blotting demonstrated that Vaspin downregulated iNOS protein expression, while upregulating Arg1, p-Akt, and PPARγ expression in a dose-dependent manner( P<0.05). Conclusion:Vaspin promotes M2 polarization of adipose tissue macrophages via PPARγ pathway, leading to reduced inflammation and improved insulin sensitivity in T2DM rats.