Fig. 10From: Induction of cervical disc degeneration and discogenic pain by low concentration Propionibacterium acnes infection: an in vivo animal studyA, B DRG specimens from the modeled segments. C The quantitative PCR results showed a similar trend in TNF-α (P < 0.05) and CGRP (P < 0.005) expression in the DRG of the P. acnes-L group, aligning with the immunohistochemical findings. D Immunoreactivity of pain neurotransmitter CGRP (P < 0.005) and inflammatory factor TNF-α (P < 0.01) was notably increased in the stroma compared to the control groupBack to article page