| خلاصه مقاله | Irisin, a novel adipomyokine, has been proposed to be a therapeutic agent against obesity-related metabolic disease. Royal jelly (RJ) and tocotrienol-rich fraction (TRF) are suggested to promote obesity and its related problems. This investigation intended to evaluate the glycemic and inflammation-promoting effects of RJ and TRF through irisin action in obese rats induced by a high-fat diet (HFD) that underwent a calorie restriction diet (CRD).
Material and Methods:
Fifty HFD-fed obese rats received the following interventions: RJ, TRF, or RJ+TRF in combination with a CRD for 8 consecutive weeks. After the investigation, body weight, fasting blood sugar (FBS), irisin, insulin, C-reactive protein (CRP), interleukin-6 (IL-6), interleukin-1 β (IL-1β), leptin, adiponectin, and insulin resistance (IR) were assessed.
Results:
After 8 weeks of treatment, significant weight reduction was noticed in rats received RJ and RJ+TRF related to the CRD rats (P<0.001), although this reduction was not considerable in TRF-treated rats. RJ and RJ+TRF supplementation markedly elevated irisin concentrations in CRD rats (P<0.05), but TRF did not. Glycemic indices, inflammatory indices including IL-1b and CRP levels, and leptin concentrations were significantly decreased after RJ, TRF, and their combination were added to CRD (P<0.05). According to the mediational analysis results, irisin mediated the promoting effects of RJ on glycemic hemostasis.
Conclusion:
Based on the results of this investigation, RJ and TRF are novel nutrients that have the potential to improve obesity-related disorders. This research suggests that RJ exerts its beneficial glycemic regulatory effects through irisin. |