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자료유형
학술저널
저자정보
Takeshi Sainoh (Sainou Hospital) Kazuhide Inage (Chiba University) Sumihisa Orita (Chiba University) Masao Koda (Chiba University) Takeo Furuya (Chiba University) Kazuyo Yamauchi (Chiba University) Miyako Suzuki (Chiba University) Yoshihiro Sakuma (National Hospital Organization Chiba Medical Center) Go Kubota (Chiba University) Yasuhiro Oikawa (Chiba Children’s Hospital) Jun Sato (Chiba University) Kazuki Fujimoto (Chiba University) Yasuhiro Shiga (Chiba University) Koki Abe (Chiba University) Hirohito Kanamoto (Chiba University) Masahiro Inoue (Chiba University) Hideyuki Kinoshita (Chiba University) Masaki Norimoto (Chiba University) Tomotaka Umimura (Chiba University) Kazuhisa Takahashi (Chiba University) Seiji Ohtori (Chiba University)
저널정보
대한척추외과학회 Asian Spine Journal Asian Spine Journal Vol.11 No.3
발행연도
2017.1
수록면
472 - 477 (6page)

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Study Design: Observational study. Purpose: To assess the correlation among inflammatory cytokine expression levels, degree of intervertebral disk (IVD) degeneration, and predominant clinical symptoms observed in degenerative disk disease (DDD). Overview of Literature: Low back pain (LBP) is associated with inflammatory cytokine expression levels, including those of tumor necrosis factor-alpha (TNF-α), interleukin 6 (IL-6), and nerve growth factor (NGF). However, the association between cytokine expression levels and the physiological mechanisms of disk degeneration and clinical pain remain controversial. Methods: Using the enzyme-linked immunosorbent assay, TNF-α, IL-6, and NGF expression levels were analyzed in 58 IVD samples that were harvested from patients with lumbar DDD. Patient samples were grouped according to the degree of IVD degeneration using the Pfirrmann grading system and magnetic resonance imaging, and the correlations between the disease groups and each cytokine expression level were assessed. In addition, on the basis of their predominant preoperative symptoms, the patients were assigned to either an LBP or leg pain group to determine the correlation among these disease manifestations and individual cytokine expression levels. Results: A gradual increase in TNF-α (R=0.391) and IL-6 (R=0.388) expression levels correlated with the degree of IVD degeneration, whereas NGF (R=0.164) expression levels exhibited a minimal decrease with disease progression. Regarding the predominant clinical manifestation, only the LBP group exhibited a significant increase in TNF-α expression levels (p =0.002). Conclusions: These results suggested that TNF-α and IL-6 play an important role in the pathophysiology of IVD degeneration at any stage, whereas NGF plays an important role during the early disease stages. Moreover, because TNF-α expression levels were significantly high in the LBP group, we propose that they are involved in LBP onset or progression.

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