Fig. 7From: Graphene oxide nanofilm and the addition of l-glutamine can promote development of embryonic muscle cellsmRNA expression of genes related to proliferation (a–d), and muscle cells differentiation (e–i) in the muscle progenitor cells from the chicken embryo after 5 days of primary culture at the mRNA level, determined according to the real-time qPCR method. The figure shows the results for the control group and groups treated with nGO, L-Glu, and nGO with addition of the L-Glu (nGOxL-Glu). The results represent a relative expression of the respective target gene vs. reference genes mean. The error bars represent standard error of mean (n = 6 per group). Different letters (a–d) above the columns indicate statistically significant differences (p ≤ 0.05) analysed by Tukey’s HSD testBack to article page