山东医药
山東醫藥
산동의약
SHANDONG MEDICAL JOURNAL
2014年
28期
14-16
,共3页
吗啡耐受%黑皮质素受体%小胶质细胞%肿瘤坏死因子α%OX-42%大鼠
嗎啡耐受%黑皮質素受體%小膠質細胞%腫瘤壞死因子α%OX-42%大鼠
마배내수%흑피질소수체%소효질세포%종류배사인자α%OX-42%대서
morphine tolerance%melanocortin receptor%microglia%tumor necrosis factor-α%OX-42%rats
目的:探讨黑皮质素受体拮抗剂(HS014)对吗啡耐受大鼠脊髓组织OX-42及肿瘤坏死因子α(TNF-α)表达的影响及意义。方法健康雄性SD大鼠30只,随机分为5组,每组6只,分别为吗啡耐受组( M组)、生理盐水组( N组)、HS014+吗啡组( HM组)、生理盐水+吗啡组( NM组)和HS014+生理盐水组( HN组),各组连续给药5 d。于第5天实验结束后,取各组大鼠L4~6段脊髓组织,采用免疫组织化学法检测脊髓组织OX-42、TNF-α。结果与N 组比较,M、HM、NM 组大鼠脊髓组织OX-42、TNF-α表达均增加,P 均<0.01;与M 组比较,HM 组大鼠脊髓组织OX-42、TNF-α表达下降,P 均<0.01;其余组间比较差异均无统计学意义(P 均>0.05)。结论吗啡耐受大鼠脊髓小胶质细胞被激活,表现为OX-42表达增加,并释放大量TNF-α;HS014能够减轻吗啡耐受,机制可能与其抑制吗啡引起的小胶质细胞激活及TNF-α释放有关。
目的:探討黑皮質素受體拮抗劑(HS014)對嗎啡耐受大鼠脊髓組織OX-42及腫瘤壞死因子α(TNF-α)錶達的影響及意義。方法健康雄性SD大鼠30隻,隨機分為5組,每組6隻,分彆為嗎啡耐受組( M組)、生理鹽水組( N組)、HS014+嗎啡組( HM組)、生理鹽水+嗎啡組( NM組)和HS014+生理鹽水組( HN組),各組連續給藥5 d。于第5天實驗結束後,取各組大鼠L4~6段脊髓組織,採用免疫組織化學法檢測脊髓組織OX-42、TNF-α。結果與N 組比較,M、HM、NM 組大鼠脊髓組織OX-42、TNF-α錶達均增加,P 均<0.01;與M 組比較,HM 組大鼠脊髓組織OX-42、TNF-α錶達下降,P 均<0.01;其餘組間比較差異均無統計學意義(P 均>0.05)。結論嗎啡耐受大鼠脊髓小膠質細胞被激活,錶現為OX-42錶達增加,併釋放大量TNF-α;HS014能夠減輕嗎啡耐受,機製可能與其抑製嗎啡引起的小膠質細胞激活及TNF-α釋放有關。
목적:탐토흑피질소수체길항제(HS014)대마배내수대서척수조직OX-42급종류배사인자α(TNF-α)표체적영향급의의。방법건강웅성SD대서30지,수궤분위5조,매조6지,분별위마배내수조( M조)、생리염수조( N조)、HS014+마배조( HM조)、생리염수+마배조( NM조)화HS014+생리염수조( HN조),각조련속급약5 d。우제5천실험결속후,취각조대서L4~6단척수조직,채용면역조직화학법검측척수조직OX-42、TNF-α。결과여N 조비교,M、HM、NM 조대서척수조직OX-42、TNF-α표체균증가,P 균<0.01;여M 조비교,HM 조대서척수조직OX-42、TNF-α표체하강,P 균<0.01;기여조간비교차이균무통계학의의(P 균>0.05)。결론마배내수대서척수소효질세포피격활,표현위OX-42표체증가,병석방대량TNF-α;HS014능구감경마배내수,궤제가능여기억제마배인기적소효질세포격활급TNF-α석방유관。
Objective To investigate of melanocortin receptor antagonist (HS014) on OX-42 and tumor necrosis fac-tor-α( TNF-α) expression in spinal cord tissues of morphine-tolerance rats .Methods Thirty adult male SD rats were ran-domly divided into 5 groups (n=6): morphine tolerance group (group M), normal saline group (group N), HS014+morphine group (group HM), normal saline +morphine group (group NM) and HS014+normal saline group (group HN) , each group was administered continuously for 5 d.All rats were sacrificed after the last dose on day 5 to obtain the L4-6 spinal cord tissues .The expression of TNF-αand OX-42 was examined by immunohistochemical technique .Results Compared with the group N , the expression of TNF-αand OX-42 was significantly increased in the groups M , HM and NM (all P<0.01).Compared with group M, the expression of TNF-αand OX-42 was significantly decreased in the group HM (all P<0.01).There was no significant differences between the other groups (all P>0.05).Conclusions Chronic use of morphine can induce microglial activation which shows that the expression of OX -42 and TNF-αis increased.HS014 can attenuate the morphine tolerance , whose mechanism may be related to the inhibition of morphine-induced activation of mi-croglia and TNF-αrelease.