浙江临床医学
浙江臨床醫學
절강림상의학
ZHEJIANG CLINICAL MEDICAL JOURNAL
2014年
2期
175-177,178
,共4页
丁良甲%王炳海%刘莹丽%韦宜山
丁良甲%王炳海%劉瑩麗%韋宜山
정량갑%왕병해%류형려%위의산
Caspase-3%Bcl-2%发育性髋关节脱位%软骨细胞%细胞凋亡
Caspase-3%Bcl-2%髮育性髖關節脫位%軟骨細胞%細胞凋亡
Caspase-3%Bcl-2%발육성관관절탈위%연골세포%세포조망
Caspase-3%Bcl-2%DDH%Chondrocytes%Apoptosis
目的:探讨发育性髋关节脱位(development dislocation of the hip,DDH)早期髋臼软骨细胞凋亡与Caspase-3、Bcl-2表达的相关性。方法选取32只4周龄新西兰大白兔,采用兔后肢屈髋伸膝位管型石膏固定制作DDH动物模型。对24只成功模型兔采用TUNEL法检测髋臼软骨细胞凋亡情况;免疫组化法检测软骨细胞中Caspase-3和Bcl-2的表达。Spearman等级相关分析法进行细胞凋亡与Caspase-3、Bcl-2表达的相关性分析。结果实验进行至8周时,显示实验侧髋臼软骨细胞凋亡率(45.23±10.42)%,高于对照侧(8.04±4.35)%,差异有统计学意义(P<0.05),但随着实验时间的延长,实验侧髋臼软骨细胞凋亡变化不明显;免疫组化结果显示实验侧髋臼软骨细胞Caspase-3和Bcl-2表达的平均灰度值分别为(56.73±7.85)%与(56.73±7.85)%,二者表达高于对照侧(61.45±5.47)%与(52.32±7.99)%,差异有统计学意义(P<0.05),但随着实验时间的延长,实验侧髋臼软骨细胞凋亡情况变化不明显。相关性分析得出Caspase-3表达的灰度值与软骨细胞凋亡率呈负相关(r=-0.896,P<0.05),Bcl-2表达的灰度值与软骨细胞凋亡率呈正相关(r=0.939,P<0.05)。结论凋亡相关因子Caspase-3和Bcl-2可能在髋臼发育不良和髋臼软骨退变中参与调控。
目的:探討髮育性髖關節脫位(development dislocation of the hip,DDH)早期髖臼軟骨細胞凋亡與Caspase-3、Bcl-2錶達的相關性。方法選取32隻4週齡新西蘭大白兔,採用兔後肢屈髖伸膝位管型石膏固定製作DDH動物模型。對24隻成功模型兔採用TUNEL法檢測髖臼軟骨細胞凋亡情況;免疫組化法檢測軟骨細胞中Caspase-3和Bcl-2的錶達。Spearman等級相關分析法進行細胞凋亡與Caspase-3、Bcl-2錶達的相關性分析。結果實驗進行至8週時,顯示實驗側髖臼軟骨細胞凋亡率(45.23±10.42)%,高于對照側(8.04±4.35)%,差異有統計學意義(P<0.05),但隨著實驗時間的延長,實驗側髖臼軟骨細胞凋亡變化不明顯;免疫組化結果顯示實驗側髖臼軟骨細胞Caspase-3和Bcl-2錶達的平均灰度值分彆為(56.73±7.85)%與(56.73±7.85)%,二者錶達高于對照側(61.45±5.47)%與(52.32±7.99)%,差異有統計學意義(P<0.05),但隨著實驗時間的延長,實驗側髖臼軟骨細胞凋亡情況變化不明顯。相關性分析得齣Caspase-3錶達的灰度值與軟骨細胞凋亡率呈負相關(r=-0.896,P<0.05),Bcl-2錶達的灰度值與軟骨細胞凋亡率呈正相關(r=0.939,P<0.05)。結論凋亡相關因子Caspase-3和Bcl-2可能在髖臼髮育不良和髖臼軟骨退變中參與調控。
목적:탐토발육성관관절탈위(development dislocation of the hip,DDH)조기관구연골세포조망여Caspase-3、Bcl-2표체적상관성。방법선취32지4주령신서란대백토,채용토후지굴관신슬위관형석고고정제작DDH동물모형。대24지성공모형토채용TUNEL법검측관구연골세포조망정황;면역조화법검측연골세포중Caspase-3화Bcl-2적표체。Spearman등급상관분석법진행세포조망여Caspase-3、Bcl-2표체적상관성분석。결과실험진행지8주시,현시실험측관구연골세포조망솔(45.23±10.42)%,고우대조측(8.04±4.35)%,차이유통계학의의(P<0.05),단수착실험시간적연장,실험측관구연골세포조망변화불명현;면역조화결과현시실험측관구연골세포Caspase-3화Bcl-2표체적평균회도치분별위(56.73±7.85)%여(56.73±7.85)%,이자표체고우대조측(61.45±5.47)%여(52.32±7.99)%,차이유통계학의의(P<0.05),단수착실험시간적연장,실험측관구연골세포조망정황변화불명현。상관성분석득출Caspase-3표체적회도치여연골세포조망솔정부상관(r=-0.896,P<0.05),Bcl-2표체적회도치여연골세포조망솔정정상관(r=0.939,P<0.05)。결론조망상관인자Caspase-3화Bcl-2가능재관구발육불량화관구연골퇴변중삼여조공。
Objective To investigate the corelation of the apoptosis and the expression of Caspase-3 and Bcl-2 of the acetabulum chondrocytes in the early stage of development dislocation of the hip. Methods Thirty two rabbits of 4 weeks old with no restriction on the gender were used in the experiment.The hip was flexured and the left back knee was extended and then fixed with a plaster cast as DDH model group and the right side without fixation as the control group. The apoptosis was detected by TUNEL,and the expression of Caspase-3,Bcl-2 was determined by immunohistochemistry in the acetabulum chondrocytes of 24 successful models. The correlation of apoptosis and the expression of Caspase-3,Bcl-2 was analyzed by the Spearman rank correlation. Results TUNEL Results showed that the apoptosis rate of acetabulum chondrocytes in DDH model group(45.23±10.42)was higher than that in the control group(8.04±4.35,P<0.050)before 8 weeks. However,after 8 weeks the apoptosis in DDH model group did not change obviously. Immunohistochemical results showed that the expression of caspase-3 and bcl-2 in DDH model group was higher than it in the control group(56.73±7.85vs61.45±5.47 and 56.73±7.85 vs. 52.32±7.99,respectively;P<0.05). The caspase-3 expression and the apoptosis rate in acetabulum chondrocytes was negatively correlated(r=-0.896,P<0.05),while bcl-2 expression and the apoptosis rate was positively correlated(r=-0.896,P<0.05). Conclusion Caspase-3 and bcl-2 may play a role in acetabulum dysplasia and cartilage degeneration.