机构地区:[1]三峡大学第三临床医学院骨外科,湖北省宜昌市443002
出 处:《中国脊柱脊髓杂志》2014年第9期815-821,共7页Chinese Journal of Spine and Spinal Cord
摘 要:目的:观察椎间盘内注射医用臭氧对椎间盘退变(intervertebral disc degeneration,IDD)动物模型自身免疫反应的影响,探讨其作用机理。方法:50只新西兰兔随机分为A、B、C、D、E共5组,其中A组为正常组,不作处理;B组为假手术组,仅暴露纤维环而不穿刺;C、D、E组采用后外侧纤维环穿刺的方法建立腰椎间盘退变模型(L6/7),在造模后14d,D组模拟临床手术椎间盘内注射臭氧干预,E组椎间盘内注射医用纯氧,于造模后14d、21d对5组动物进行自由行走疼痛行为学评分,并于21d获取各组动物外周血,L6、L7神经根及L6/7髓核,运用透射比浊法测定各组动物血清中免疫球蛋白IgG和IgM水平,ELISA法测定血清中TNF-α、IL-1、IL-6的含量;免疫组化染色观察髓核中抗原抗体复合物沉积情况,应用图像分析系统记录染色阳性细胞的累积光密度值(integrated optical density,IOD);BCA蛋白定量法检测腰神经根中PLA2的活性。结果:造模后1周左右(平均7.4d)C、D、E组动物手术侧后肢活动减少,并在爬行前进时明显偏离手术侧,行走疼痛学评分分别为2.81±0.13分、2.69±0.11分、2.64±0.31分,组间比较差异无统计学意义(P>0.05);D组注射臭氧后上述异常行为逐渐减轻,处死前行走疼痛学评分为0.54±0.12分,低于C组(2.75±0.17分)及E组(2.52±0.96分)(P<0.05);D组动物血清中IgG、IgM水平(6.05±0.49g/L,1.98±0.28g/L)低于C组(8.98±0.77g/L,2.40±0.25g/L)及E组(8.52±0.63g/L,2.91±0.31g/L)(P<0.05),与A组(5.43±0.29g/L,1.72±0.15g/L)及B组(4.97±0.35g/L,1.66±0.27g/L)比较差异无统计学意义(P>0.05);D组炎性细胞因子TNF-α、IL-1、IL-6的含量(98±11pg/ml,247±21pg/ml,149±23.4pg/ml)亦低于C组(256±39pg/ml,404±19pg/ml,231±41.3pg/ml)及E组(244±45pg/ml,410±15pg/ml,249±21.7pg/ml)(P<0.05),与A组(70±6pg/ml,223±17pg/ml,141±12.6pg/ml)及B组(79±11pg/ml,238±32pg/ml,138±17.4pg/ml)比较差异无统计学意义(P>0.05);D组髓核中抗原抗体复合物阳性沉积光�Objectives: To observe the influence of ozone injection on the abnormal autoimmunity of intervertebral disc degeneration(IDD) model(L6/7) in animal. Methods: An IDD model was established on rabbits. Then medical ozone was used for treatment while medical purified oxygen was used as the control. The immunoglobulin G and immunoglobulin M in serum were obtained at two weeks after the operation and examined by turbidimetry. The presence and distribution of antigen-antibody complexes in nucleus pulposus were examined by immunohistochemistry. And the levels of cytokine TNF-α, IL-1, IL-6 were detected by enzyme linked immunosorbent assay, and the BCA method was also used to analyze the activity of PLA2 in the nerve root. Results: After the operation, there were abnormal activities in the groups of model, ozone and oxygen, which had the scores of free walk pain showed as 2.81±0.13, 2.69±0.11 and 2.64±0.31 respectively, and improved when the medical ozone was applied. Compared with the levels of the immunoglobulin G and M as (8.98±0.77g/L, 2.40±0.25g/L) and (8.52±0.63g/L, 2.91±0.31g/L) on model group and medical oxygen group, the medical ozone group showed lower levels(6.05±0.49g/L, 1.98±0.28g/L, P〈0.05); compared with the model group and medical oxygen group as (256±39pg/ml,404±19pg/ml, 231±41.3pg/ml) and (244±45pg/ml, 410±15pg/ml, 249±21.67pg/ml)(P〈0.05) for the leves of cytokine TNF-α, IL-1, IL-6 in the serum, the medical ozone group also showed lower values (98±11pg/-L,247±21pg/L, 149±23.4pg/L); compared with the model group and medical oxygen group for the expression of antigen-antibody complexes in the nucleus pulposus (27.49 ±12.84) and (29.55±10.38), the value of medical ozone group was lower(7.40±3.56)(P〈0.05); furthermore, the level of PLA2 in the lumbar nerve root of medical ozone group (0.0189±0.0072μmol/min L) was also lower than the model group and medical oxygen group as (0.1685±0.0103μmol/(min-L) and (0.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...