Role of Expression of Inflammatory Mediators in Primary and Recurrent Lumbar Disc Herniation

Value of magnetic resonance combined with dual-source spectral computed tomography in improving the clinical diagnosis and treatment efficiency of lumbar disk herniation

OBJECTIVE

This study aims to investigate the value of magnetic resonance combined with dual-source spectral computed tomography in improving the clinical diagnosis and treatment efficiency of lumbar disk herniation.

METHODS

Two hundred patients with lumbar disk herniation were enrolled. Magnetic resonance and dual-source spectral computed tomography were used to perform the diagnosis. The treatment efficiency and effectiveness of different diagnostic methods were determined.

RESULTS

Eighty cases of lumbar disk herniation, 40 cases of prolapse, 33 cases of bulge, 27 cases of sequestration, and 20 cases of nodules were diagnosed based on pathologic evaluation. magnetic resonance detected lumbar disk herniation in 172 cases, with a detection rate of 86.00%. Dual-source spectral computed tomography detected 171 cases, with a detection rate of 85.50%. Magnetic resonance combined with dual-source spectral computed tomography detected 195 cases, with a detection rate of 97.50%. There was no significant difference between magnetic resonance and dual-source spectral computed tomography (p>0.05), but compared with the combined detection, there was a significant difference (p<0.05). One hundred and two cases of calcification, 83 cases of spinal cord deformity, 70 cases of intervertebral disk degeneration, 121 cases of intervertebral disk gas, 85 cases of dural sac compression, and 78 cases of nerve root compression were surgically demonstrated. The detection rate of diagnostic signs based on imaging by magnetic resonance or dual-source spectral computed tomography alone was lower than that of combined detection (p<0.05).

CONCLUSION

Magnetic resonance combined with dual-source spectral computed tomography can improve the diagnosis and treatment efficiency and effectiveness of lumbar disk herniation.

Expression and Mechanism of Interleukin 1 (IL-1), Interleukin 2 (IL-2), Interleukin 8 (IL-8), BMP, Fibroblast Growth Factor 1 (FGF1), and Insulin-Like Growth Factor (IGF-1) in Lumbar Disc Herniation

BACKGROUND The expression and mechanism of IL-1, IL-2, IL-8, BMP, FGF1, and IGF-1 in Sprague-Dawley (SD) rats with lumbar disc herniation were investigated. MATERIAL AND METHODS Immunohistochemical methods were applied to identify IL-1, IL-2, IL-8, BMP, FGF1, and IGF-1. PI3K, AKT protein, and mRNA expression were detected and analyzed by Western blot analysis. We selected 30 healthy SD rats and divided them into 2 groups to construct an animal model that was validated by immediate CT scanning. Cartilage tissues from the lumbar disc herniation (experimental) group and control group were obtained and compared. RESULTS The expression of BMP was not significantly different between the control group and the experimental group (P>0.05). FGF1: There was no significant difference in the expression of FGF1 (P>0.05) between the control group and the experimental group. Compared with the control group, the expression of IGF-1 in the experimental group was significantly higher (P<0.05); the expression of IL-1 in the experimental group was significantly higher (P<0.05); and the expression of IL-2 in the experimental group was also significantly higher (P<0.05). There was no significant difference in IL-8 between the experimental group and the control group (P>0.05). The expression levels of PI3K and AKT protein and mRNA were significantly higher than those in healthy controls (P<0.05). CONCLUSIONS After lumbar disc herniation occurred, the IGF-1 was first activated; the PI3K/AKT signaling pathway was later activated, which resulted in the expression of IL-1 and IL-2 inflammation-related factors being increased.