Figure 2 from: Hristov M, Sabit Z, Kirilov T, Bakalov D, Tzoneva R, Apostolova S, Georgieva I, Andreeva-Gateva P (2024) Effects of riboflavin on hyperalgesia and serum glutamine-to-glutamate ratio in rats with painful diabetic neuropathy. Pharmacia 71: 1-7. https://doi.org/10.3897/pharmacia.71.e120921