急性切口痛大鼠血浆及上消化道胃动素表达的变化

目的:观察急性切口痛大鼠血浆、胃体及十二指肠胃动素(MTL)水平的变化。方法 SPF级健康雄性SD大鼠156只,6~8周龄,体质量180~220 g,采用随机数字表法将其分为2组(n=78):对照组(C组)和切口痛组(P组)。P组行右足跖肌切口。2组先随机各取6只大鼠,于术前24 h(T0)、术后1 h(T1)、6 h(T2)、24 h(T3)、48 h(T4)、72 h(T5)测定机械缩足阈值(PWMT)与热缩足反射潜伏期(PWTL)。并于上述每个时点,2组分别取12只大鼠,断头处死,提取血浆、胃体及十二指肠组织,采用ELISA法测定MTL水平。结果与C组比较,P组T1~T4时PWMT降低,...

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Published in天津医药 Vol. 43; no. 3; pp. 263 - 266
Main Author 赵军 徐磊 张瑜 冯全胜
Format Journal Article
LanguageChinese
Published 天津医科大学三中心临床学院 邮编300170%天津市第三中心医院重症医学科、天津市人工细胞重点实验室%天津医科大学附属肿瘤医院麻醉科 2015
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ISSN0253-9896
DOI10.3969/j.issn.0253-9896.2015.03.011

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Summary:目的:观察急性切口痛大鼠血浆、胃体及十二指肠胃动素(MTL)水平的变化。方法 SPF级健康雄性SD大鼠156只,6~8周龄,体质量180~220 g,采用随机数字表法将其分为2组(n=78):对照组(C组)和切口痛组(P组)。P组行右足跖肌切口。2组先随机各取6只大鼠,于术前24 h(T0)、术后1 h(T1)、6 h(T2)、24 h(T3)、48 h(T4)、72 h(T5)测定机械缩足阈值(PWMT)与热缩足反射潜伏期(PWTL)。并于上述每个时点,2组分别取12只大鼠,断头处死,提取血浆、胃体及十二指肠组织,采用ELISA法测定MTL水平。结果与C组比较,P组T1~T4时PWMT降低,PWTL缩短,血浆、胃体MTL水平降低,而十二指肠MTL水平升高(P<0.05),T0、T5时差异无统计学意义;P组血浆MTL水平与PWMT、PWTL呈正相关(r分别为0.952、0.879,P<0.01),P组胃体MTL水平与PWMT、PWTL呈正相关性(r分别为0.970、0.931,P<0.01);十二指肠MTL水平与PWMT、PWTL呈负相关性(r分别为-0.991、-0.975,P<0.01)。结论急性切口痛可使大鼠血浆、胃体MTL水平降低,而使十二指肠MTL水平升高。
Bibliography:motilin;stomach;duodenum;plasma;acute incisional pain
Objective To observe changes of motilin(MTL) levels in gastric body, duodenum and plasma in rat model of acute incisional pain.Methods A total of 156 healthy male adult SD rats,weighing 180-220 g,were randomized into two groups:control group (group C,n=78) and incisional pain group (group P,n=78),Rats in P group received incision on the right plantaris. Values of paw withdrawal mechanical threshold (PWMT) and paw withdrawal thermal latency (PWTL) at dif-ferent time points of 24 hours before operation (T0) and 1 hour (T1),6 hours (T2),24 hours(T3),48 hours (T4) and 72 hours (T5) after operation were measured in six rats chosen randomly from each group. Twelve rats were chosen from each group at T 0-5, and sacrificed. The MTL levels in plasma, the mucosal tissues of gastric body and duodenum were detected by ELISA. Re-sults Compared with group C, PWMT and PWTL were significantly decreased at T1-4 in group P. The MTL levels were sig-nificantly decreased in pla
ISSN:0253-9896
DOI:10.3969/j.issn.0253-9896.2015.03.011