论著

胆碱能受体激动剂尼古丁对子痫前期大鼠的治疗作用及机制研究

The effects and mechanism of cholinergic receptor agonist nicotine in preeclampsia rats

:1-5
 
目的 探讨胆碱能受体激动剂尼古丁对子痫前期大鼠的治疗作用及机制。方法 将30只妊娠SD大鼠分为对照组(n =10)、子痫前期组(n =10)和尼古丁治疗组(n =10)。子痫前期组中,大鼠妊娠第14天注射内毒素(l.0 μg/kg);对照组给予等量生理盐水2 mL,研究组妊娠第14 天开始皮下注射尼古丁1 mg/(kg·d)至妊娠第19天。检测各组干预前后收缩压、24小时蛋白、妊娠结局和大鼠外周血IL-6,TNF-α,IFN-γ和IL-1β的表达水平。结果 和对照组相比,大鼠动脉收缩压妊娠第14天注射LPS后升高,治疗组中在尼古丁注射后,妊娠第16天、第18天较子痫前期组血压下降(14.99±0.48 vs 16.61±0.55 kPa,15.01±0.60 vs 17.04±0.49 kPa,P<0.05);大鼠24 h蛋白尿在子痫前期组中妊娠第17、19天升高(P<0.05),尼古丁治疗组尿蛋白较子痫前期组降低(P <0.05)。妊娠第20天,子痫前期组胎儿重量和对照组相比下降(P <0.05),尼古丁治疗组较子痫前期模型组胎儿重量增加(P <0.05)。各组间存活胎儿数、胎盘重量差异无统计学意义(P >0.05)。子痫前期组炎性因子IL-6,TNF-α,IFN-γ和IL-1β 较对照组升高,差异有统计学意义;尼古丁治疗组IL-6,TNF-α,IFN-γ 和IL-1β 降低(P <0.05)。结论 胆碱能受体激动剂尼古丁通过降低炎性反应来改善子痫前期大鼠的妊娠结局。
Objective To examine the effects and mechanism of cholinergic receptor agonist nicotine on preeclampsia rats. Methods 30 pregnant SD rats were divided into control group(n=10),preeclampsia group(n=10) and nicotine treatment group(n=10).In preeclampsia group,rats were injected LPS(l.0 μg/kg) on the day 14th of gestation,the control rats were injected 2 mL of physical saline on the day 14th of gestation,the rats in nicotine treatment group were injected nicotine 1mg/(kg·d) from the day 14th to the day 19th of gestation. The systolic blood pressure,24 hour urine protein,pregnancy outcome and serum levels of IL-6,TNF-α,IFN-γ and IL-1β were compared between each groups. Results Compared to control group,the systolic blood pressure rose after LPS injection on the day 14th of gestation,the systolic blood pressure in nicotine treatment group decreased on the day 16th and the day 18th of gestation compared to preeclampsia group(14.99±0.48 vs 16.61±0.55 kPa,15.01±0.60 vs 17.04±0.49 kPa,P<0.05).The 24 hour urine in preeclampsia group rose on day 17 and day 19 of gestation(P <0.05),which decreased in nicotine group(P <0.05). The fetal weight were higher in nicotine treatment group compared to the preeclampsia group,there were no statisitical difference in viable fetal number and placental weight among groups. The serum levels of IL-6,TNF-α,IFN-γ IL-1β were higher in preeclampsia group compared to the control group,while nicotine decreased the levels of IL-6,TNF-α,IFN-γ IL-1β(P <0.05). Conclusion Nicotine improved pregnancy outcome of LPS induced preeclampsia rats by decreasing inflammatory levels.
临床诊疗

不同性别学龄儿童行为问题影响因素分析

Analysis of related factors of children behavior problems in different genders at school age

:85-86
 
目的 分析不同性别学龄儿童行为问题影响因素,为促进儿童行为健康发展提供指导依据。方法 以儿童保健门诊就诊的学龄儿童200名,男童110例,女童90例,平均年龄为(7±15)a 为调查对象,采用儿童行为量表(CBCL)检测所有调查对象的行为问题。由男/女童父母在专业人员指导下进行问卷调查,对收集的数据使用SPSS 11.0统计软件进行资料分析。结果 本次调查中男、女童年龄差异无统计学意义,男、女童在检出儿童行为问题方面有明显的差异性(P<0.05,P<0.01)具有统计学意义。男童在强迫性、违纪方面明显高于女童,女童在抑郁、社交退缩、体诉方面高于男童。结论 儿童行为问题的发生,受多方面因素影响包括社会环境、家庭环境以及父母的教养方式,应根据男童和女童的不同行为特点,给予有效的干预让孩子的身心发展更趋稳定和健康,从而降低儿童行为问题的发生。
Objective To explore the influence factors of children's behavior problem in school-age children, and to provide the evidence for promoting healthier children's behavior. Methods The objects of our study included 200 school-aged children in health care clinic (110 boys and 90 girls ), the average age is 7(7±15)years, and we used the CBCL questionnaire to assess all the children's behavior problems. The CBCL questionnaire was finished by the parents of the children guided by the specialized investigator. The data was analyzed by the SPSS 11.0 software. Results The score of boys in compulsivity and disobey is significant higher than girls(P<0.05), and the girls have higher score in depression, social flinch and physical demands than boys(P<0.01). There is no significant difference between different genders in the age of the children. Conclusion Behavior problems of children were affected by many kinds of factors including social environment, family environment and parenting styles. We need to conduct appropriate behavior intervention according to the different behavior characteristics between boys and girls, to promote healthier children's behavior and to reduce the behavior problems of children.
临床诊疗

不同剂量右美托咪定对腰硬联合麻醉下经皮肾镜碎石术患者的镇静效应和安全性研究

Safety and sedative effect of different dose of Dexmedetomidine in percutaneous nephrolithotomy under combined spinal epidural anesthesia

:76-80
 
目的 探讨不同剂量右美托咪定(Dex)对腰硬联合麻醉下经皮肾镜碎石术患者的镇静效应和安全性。方法 腰硬联合麻醉下行俯卧位经皮肾镜碎石术患者80例,随机分成4组。D1组、D2组、D3组俯卧位后静脉泵注负荷剂量DEX 0.5 μg/kg,输注的时间为10min,随后分别静脉泵注DEX 0.3 μg/(kg·h)、0.5 μg/(kg·h)、 0.7 μg/(kg·h)至术毕;C组俯卧位后静脉泵注生理盐水10 mL/h至术毕。记录T0~T6共7个时点的HR、MAP、p(O2)和BIS值;在T0、T3~T6等时点对患者静息Ramesay镇静评分;观察患者不良反应发生情况;询问综合满意度。结果 D2组和D3组的HR、MAP、BIS、Ramesay镇静评分在T3~T6等时点明显慢于C组(P<0.05);D3组心动过缓和头晕等不良反应的发生率明显高于D1组、D2组和C组(P<0.05),D2组和D3组术中躁动的发生率明显低于D1组和C组(P<0.05),D1组、D2组和D3组高血压、寒战和恶心呕吐的发生率明显低于C组(P<0.05),且综合满意度明显高于C组。结论 DEX本药物用于该类手术的镇静疗效及安全性均优于对比的药物。建议临床使用剂量为DEX负荷剂量0.5 μg/kg,随后以0.5 μg/(kg·h)维持。
临床诊疗

通窍活血汤配合舒血宁注射液在单纯型糖尿病视网膜病变中的治疗效果

Therapeutic effect of Tongqiao Huoxue Decoction combined with Shexuening injection in treatment of simple type diabetic retinopathy

:66-69
 
目的 分析并探讨应用通窍活血汤配合舒血宁注射液在治疗糖尿病视网膜病变(单纯型)中的临床效果。方法 80例患者(80只眼)按照随机的方式将其列入对照组(40只眼)和治疗组(40只眼)两组,对照组给以调节血糖、饮食控制、运动疗法等常规治疗控制血糖稳定并口服通窍活血汤,治疗组在对照组的基础上,口服通窍活血汤再配合舒血宁注射液离子导入,所有患者均由同一位眼科专科医生分别在治疗前后对所选患者行眼压、视力、眼底镜检查,同时观察其治疗前后血液流变学、血脂变化情况,观察治疗效果。结果 治疗前后血糖、糖化血红蛋白改变无差异,治疗组视力、眼底均较对照组明显改善(P<0.01),血液流变学,血及血脂各指标的改善较对照组比较有统计学意义(P<0.01)。结论 通窍活血汤配合舒血宁注射液在单纯型糖尿病视网膜病变中的治疗效果显著,可有明显改善患者的血脂及血液流变学,安全可靠,适合临床长期推广应用,具有较高的社会效益和经济效益,值得临床推广应用。
论著

两种复位法治疗向地性眼震水平半规管良性阵发性位置性眩晕的临床疗效比较

Effect comparison of two different manual reduction in treatment of geotropic nystagmus horizontal semicircular canal benign paroxysmal positional vertigo

:50-52
 
目的 探讨两种不同手法复位治疗向地性眼震水平半规管良性阵发性位置性眩晕的临床效果。方法 选取水平半规管良性阵发性位置性眩晕患者50例,分组进行不同手法复位治疗,短期治疗效果不佳者结合强迫长时间健侧卧位法治疗。结果 初次治疗360-Barbecue复位法组治愈率80%,Gufoni复位法组患者治愈率72%;两组患者结合强迫长时间健侧卧位法,第二天复查治愈率分别为92%和88%,两组比较差异无统计学意义(P>0.05)。结论 两种手法复位均能有效治疗向地性眼震水平半规管良性阵发性位置性眩晕,近期疗效相近,对于无效者结合FPP可增加治愈率。
Objective To study the effects of two different manual reduction of geotropic nystagmus horizontal semicircular canal benign paroxysmal positional vertigo. Methods 50 cases of patients with two different groups, treated with different manual reduction. Patients with short term treatment but ineffective were treated in combination with forced prolonged lateral position FPP. Results The cure rate of initial treatment in the 360-Barbecue manual reduction groups was 80%, the Gufoni manual reduction groups was 72%. As the patients combined with FPP, the cure rate was 92% and 88% respectively in the second day treatment. There was no significant difference between the two groups(P>0.05). Conclusion Both of the different manual reduction may effectively treat HC-BPPV. Their recent curative effect is similar. For ineffective cases may increase the cure rate combined with FPP.
论著

双柏散与喜疗妥软膏治疗PICC相关性静脉炎的临床疗效对比

Comparision of clinical efficacy in the treatment of phlebitis correlation with peripherally inserted central catheter(PICC) between Shuangbai Powder and Hirudoid cream

:42-44
 
目的 探讨双柏散与喜疗妥软膏治疗经外周静脉穿刺置入中心静脉导管(PICC)相关性静脉炎的临床疗效对比。方法 选取PICC相关性静脉炎患者80例,随机分为观察组和对照组各40例,观察组采用双柏散水蜜制剂外敷,对照组采用喜疗妥软膏外涂,观察2组临床疗效。结果 观察组显效率87.5%,总有效率97.5%;对照组显效率65%,总有效率80%。观察组显效率和总有效率均高于对照组(P<0.05)。两组在治疗后各时点疼痛评分均低于治疗前(P<0.01);对照组在治疗24h后各治疗时点疼痛评分均低于治疗前,差异有显著性意义(P<0.01),但在12 h治疗时点疼痛评分虽亦低于治疗前,但差异无显著性意义(P>0.05)。观察组患者在治疗后12 h、24 h、36 h和48 h时点的静脉炎疼痛评分均低于对照组,差异有显著性意义(P<0.01或P<0.05),而在72 h时点两组疼痛评分差异无显著性意义(P>0.05)。结论 本研究结果表明双柏散外敷治疗PICC相关性静脉炎效果优于喜疗妥组,且疼痛症状改善时间更早。
Objective To compare clinical efficacy in the treatment of phlebitis correlation with peripherally inserted central catheter (PICC) between Shuangbai Powder and Hirudoid cream. Methods 80 patients with PICC correlation phlebitis were randomly divided into observation group and control group. There were 40 cases in the observation group treated with Shuangbai Powder and 40 cases in the control group treated with Hirudoid cream. We observed clinical curative effect of two groups. Results The efficiency rate was 87.5% and total effective rate was 97.5% in the observation group. The efficiency rate was 65% and total effective rate was 80% in the control group. The difference of the efficiency rate and total effective rate between observation group and control group was significance (P<0.05). The pain scores were lower in observation group after treatment than it was before(P<0.01);The pain scores were lower in control group after 24 hours treatment than it was before(P<0.01);The pain scores after 12 hours of treatment lower than before, but there was no significant difference(P>0.05). The pain scores after 12 hours,24 hours,36 hours and 48 hours of treatment in observation group were lower than control group(P<0.01 or P<0.05),but there was no significant difference in the pain score of both groups after 72 hours of treatment(P>0.05). Conclusion The clinical efficacy in the treatment of phlebitis correlation with peripherally inserted central catheter (PICC) by Shuangbai Powder is better than Hirudoid cream, and the time of pain relief in the group treated by Shuangbai Power is earlier than it treated by Hirudoid cream.
论著

含益生菌四联疗法根除幽门螺杆菌的临床疗效

Efficacy of quadruple therapy containing probiotics on eradication of Helicobacter pylori

:38-41
 
目的 探讨含双歧杆菌乳杆菌三联活菌新四联疗法对消化性溃疡患者幽门螺杆菌(Helicobacter pylori, Hp)根除治疗中的疗效。方法 将342例Hp阳性的消化性溃疡患者随机分为三个治疗组:A组(三联疗法)、B组(含铋剂四联疗法)及C组(含益生菌四联疗法),疗程均2周。疗程结束4周后复查13C-尿素呼气试验评估根除疗效。治疗期间记录患者不良反应发生情况。结果 300例(87.72%)患者按方案完成治疗,A、B及C组治疗完成率分别为85.71%(96/112)、82.50%(99/120)和95.45%(105/110),C组显著高于A及B组(P<0.05)。在胃溃疡Hp根除率比较中,按意愿(方案)分析,A、B及C组疗法的Hp根除率分别为64.71%(75.86%)、71.43%(85.71%)及84.38%(87.10%),各组间差异无统计学意义(P均>0.05)。在十二指肠球部溃疡Hp根除率比较中,按意愿(ITT)分析,C组(85.90%)明显高于A组(62.82%)及B组(71.79%),差异有统计学意义(χ2=10.893,P=0.001;χ2=4.650,P=0.031);按方案(PP)分析,B组(87.50%)与C组(90.54%)明显高于A组(73.13%),差异有统计学意义(χ2=4.246,P=0.039;χ2=7.304,P=0.007),但B组与C组之间差异无统计学意义(P<0.05)。胃肠道不良反应中,便秘、味觉异常及腹胀的发生率,含益生菌疗法组明显少于另两组,差异有统计学意义(P均<0.05)。结论 含双歧杆菌乳杆菌三联活菌新四联疗法能够显著降低传统三联及四联根除疗法的胃肠道不良反应,提高患者依从性,从而提高消化性溃疡患者Hp的根除率。
Objective To investigate the efficacy of quadruple therapy containing bifidobacterium and lactobacillus triple live bacteria on eradication of Helicobater pylori (Hp) among the patients with peptic ulcer. Methods 342 Hp-infected peptic ulcer patients were randomly divided into three groups:A, B and C. The patients in group A were treated with standard triple therapy. The patients in group B and group C were treated with Colloidal Bismuth Subcitrate and Bifidobacterium and Lactobacillus combined with standard triple therapy, respectively. All patients in three groups were treated for 14 days. In the 4th week after end of treatment, Hp eradication was assessed by 13C-urea breath test. Adverse effects during the course of treatment were recorded. Results A total of 300(87.72%) patients completed the treatment. The completion rates in group A, B and C were 85.71%(96/112), 82.50%(99/120) and 95.45%(105/110) respectively, and the completion rate in group C were significantly higher than that in group A and group B(P<0.05). With intention to treat and per-protocol analysis in gastric ulcer, the eradication rates of group A, B and C were 64.71%(75.86%), 71.43%(85.71%)and 84.38%(87.10%) respectively, but there were not significant difference in the three groups(P>0.05). With intention to treat analysis in duodenal ulcer, the Hp eradication rate in group C was 85.90%, which was significantly higher than that in group A (62.82%;χ2=10.893,P=0.001) and in group B (71.79%;χ2=4.650,P=0.031). With per-protocol analysis in duodenal ulcer, the Hp eradication rate was 90.54% in group C and 87.50% in group B. No Obviously difference was found between group B and group C (P<0.05), but both were higher than that in group A(73.13%) (χ2=4.246,P=0.039;χ2=7.304,P=0.007). The incidence of adverse reactions including constipation, taste distortion and bloating in group C were significantly lower than those in the other two groups (P<0.05). Conclusion The quadruple therapy containing bifidobacterium and lactobacillus triple live bacteria can obviously enhance the patient's compliance and decrease the adverse reactions, thereby may increase the Hp eradication rate among the patients with peptic ulcer.
论著

不同剂量重组人干扰素α1b雾化吸入治疗毛细支气管炎的疗效及不良反应分析

Efficacy and adverse effects of different doses of recombinant human interferon alpha 1b in the treatment of bronchiolitis

:29-31
 
目的 研究不同剂量重组人干扰素α1b雾化吸入治疗毛细支气管炎的疗效及安全性。方法 选取2016年1月—2016年9月期间我院儿科收治的年龄≤2 a的毛细支气管炎患儿86例,均符合毛细支气管炎诊断标准,随机分为观察一组(29例)、观察二组(29例)和对照组(28例)。所有患儿均给予综合常规治疗,观察一组患儿雾化吸入生理盐水+质量浓度为0.2 g/L的沙丁胺醇+1 μg/(kg·次)重组人干扰素α1b,观察二组患儿雾化吸入生理盐水+质量浓度为0.2 g/L的沙丁胺醇+2 μg/(kg·次)重组人干扰素α1b。比较三组患儿治疗有效率、临床症状改善和不良反应发生情况。结果 观察一组与观察二组在治愈率和总有效率两个方面均显著高于对照组(P<0.05),但观察一组与观察二组治愈率和总有效率比较差异不显著(P>0.05);观察一组和观察二组患儿临床症状和体征持续时间明显少于对照组(P<0.05),但观察一组和观察二组患儿临床症状和体征持续时间无显著差异(P>0.05);三组患儿不良反应发生率差异不显著(P>0.05)。结论 低剂量与高剂量雾化吸入重组干扰素α1b对于小儿毛细支气管炎临床疗效接近,且均无严重不良反应,综合经济效益和社会效益考虑,在临床上推广低剂量雾化吸入重组干扰素α1b治疗小儿毛细支气管炎更具价值。
Objective To study the effects of different doses of recombinant human interferon α1b inhalation efficacy and safety in the treatment of bronchiolitis. Methods 86 cases of children, who were less than 2 years old were selected in department of pediatrics from January 2016 to September 2016. They were randomly divided into for observation group Ⅰ (29 cases), observation group Ⅱ(29 cases) and control group (28 cases). All the patients were treated with conventional therapy. Group Ⅰ with atomization inhalation of salbutamol and 0.02% with saline+1 μg /kg times of recombinant human interferon α1b were observed and the same as in the two groups Ⅱ with atomization inhalation of salbutamol and 0.02% with saline+2 μg /kg recombinant human interferon α1b. The treatment efficiency, the improvement of clinical symptoms and adverse reactions were compared. Results The cure rate and total effective rate of observation group Ⅰand Ⅱ were significantly higher than those in the control group (P<0.05), there were no significant differences in the cure rate and total effective rate between observation group Ⅰand Ⅱ(P>0.05). The clinical symptoms and signs of the patients of observation group Ⅰand Ⅱ were significantly higher than those in the control group (P<0.05), there were no significant differences in the clinical symptoms and signs of the patients between observation group Ⅰand Ⅱ(P>0.05). There was no significant difference in the incidence of adverse reactions between the three groups (P>0.05). Conclusion There were no serious adverse reactions in low dose and high dose of atomization inhalation of recombinant interferon α1b for close to the clinical curative effect of children with bronchiolitis. Considering comprehensively economic benefits and social benefits, it is worth of promotion low dose of atomization inhalation of recombinant interferon 1b in the treatment of children with bronchiolitis.
论著

高频彩色多普勒超声对乳腺黏液腺癌不同病理亚型的作用研究

Analysis of the ultrasound characteristics of different subtypes of mucinous breast carcinoma

:24-28
 
目的 回顾性分析不同病理类型乳腺黏液腺癌的超声声像图特征,从而提高术前乳腺黏液腺癌不同亚型的超声诊断准确率。方法 分析43名患者共44例手术切除或穿刺活检证实为乳腺黏液腺癌病灶的声像图资料,包括病灶的边界、边缘、形态、回声类型、生长方向、钙化、后方回声、血流分级、腋窝淋巴结形态,并对病灶进行BI-RADS分类。将超声声像图特征与手术或活检后病理结果进行对比,总结出不同亚型的乳腺黏液腺癌的超声声像图特征。结果 44例乳腺黏液腺癌病理类型分为21例单纯型黏液腺癌和23例混合型黏液腺癌,混合型黏液腺癌大多数表现为病灶边界不清(73.9%)、边缘模糊毛刺(73.9%)、形状不规则(91.3%)、以及内部回声不均匀(87%)、病灶内钙化更多见(52.2%)。混合型黏液腺癌的淋巴结转移率明显高于单纯型黏液腺癌(P<0.05)。对比术前病灶的BI-RADS分类及术后病理诊断,超声对恶性病灶诊断准确率68%,单纯型黏液腺癌和混合型黏液腺癌的诊断准确率分别为48.6%、87%。结论 不同病理类型乳腺黏液腺癌间具有一些不同的声像图特征。混合型黏液腺癌大多数表现为病灶边界不清、边缘模糊毛刺、形状不规则、回声不均匀、病灶内钙化多见;单纯型乳腺黏液腺癌通常表现为边界清晰、形态规则、钙化少见、淋巴结转移少等良性肿块声像特征,超声对其误诊率较高,需提高警惕。
Objective Retrospectively evaluate the sonographic features of different types of mucinous breast carcinoma to improve the preoperative ultrasound diagnostic accuracy rate. Methods Sonographic features of 44 cases of MBC proven by pathological biopsy were analyzed, including the margin,lesion boundary,shape,echo pattern,lesion growth pattern, calcification, posterior acoustic feature,blood flow, lymph node form and data system(BI-RADS)classification for the lesion to sum up the different subtypes of breast ultrasonic ultrasonographic features of mucinous carcinoma. Results 21 cases of pure mucinous carcinoma (PMBC)and 23 cases of mixed mucinous carcinoma(MMBC)were founded. MMBC were more likely to have unclear boundary (73.9%), indistinct or spiculate of margin(73.9%), irregular shape (91.3%), heterogeneous internal echo (87%), more calcification in lesions(52.2%). Lymph node metastasis in MMBC was obviously higher than that of PMBC(P<0.05). Compared with preoperative of the BI-RADS classification and pathological diagnosis, ultrasonography in diagnosing accuracy rate was 68% in malignant lesions, 48.6% in PMBC and 87% in MMBC. Conclusion There are some different ultrasonographic characteristics in different types of breast mucinous carcinoma.MMBC are more likely to have unclear boundary, indistinct or spiculate of margin, irregular shape, more calcification in lesions. On the contrary, PMBC has a circumscribed boundary, abrupt interface edge, rare calcification, rare lymph node metastasis and are easily misdiagnosed as benign lesions. We should pay more attention to avoid misdiagnosis in ultrasonography.
论著

鞘内注射雷帕霉素对CCI神经病理性痛大鼠痛阈及脊髓背角胶质细胞的影响

Effects of intrathecal injection of Rapamycin on pain threshold and spinal cord gliacyte activation in rats of neuropathic pain

:13-19
 
目的 评价鞘内注射雷帕霉素对CCI神经病理性痛大鼠的痛阈及脊髓背角胶质细胞表达的影响。方法 健康雄性SD大鼠30只随机分为6组:①CCI组:CCI术后14天处死;②正常对照组:不做任何处理; ③前对照剂组:鞘内置管3天后行CCI术,术后4小时后鞘内给同体积生理盐水,连给3天; ④前给药组:鞘内置管3天后行CCI术,术后4小时鞘内给雷帕霉素溶液,连给3天; ⑤后对照剂组:鞘内置管3天后行CCI术,术后7天鞘内给同体积生理盐水,连给3天;⑥后给药组:鞘内置管3天后行CCI术,术后7天鞘内给雷帕霉素溶液,连给3天。各组于CCI术前1天和术后第2、4、6、8、10、12、14天测机械痛阈和热痛阈。术后14天测痛后用多聚甲醛灌注大鼠,取L4~5脊髓,免疫组化染色,星形胶质细胞标记蛋白(GFAP)检测星形胶质细胞表达变化,并定量分析。结果 与对照组相比,CCI手术组热痛阈和机械痛阈从CCI手术后第4天开始下降(P<0.05);前后给药对照剂组与CCI组相比,差别无统计学意义(P>0.05)。前给药组痛阈从CCI手术后第4天开始上升并持续至手术后第14天,与CCI组相比,差别有统计学意义 (P<0.05)。与CCI组相比,后给药组痛阈从CCI第8天开始上升并持续至手术后第14天,差别有统计学意义(P<0.05)。 与正常对照组比较,CCI组、前、后对照剂组手术侧脊髓背角GFAP染色阳性区平均光密度与阳性面积均有增加,差别有统计学意义(P<0.05)。前、后给药组手术侧GFAP染色阳性区平均光密度与阳性面积与CCI组比较,均有明显降低,差别有统计学意义(P<0.05)。结论 鞘内注射雷帕霉素可缓解大鼠神经病理性痛,并抑制脊髓背角胶质细胞的激活。
Objective To evaluate the effects of intrathecal injection of rapamycin on pain threshold and spinal cord gliacyte activation in rats of neuropathic pain. Methods Healthy 30 male SD rats were randomly divided into 6 groups(n=5 in each group): ① control group without operation or intrathecal injection. ②CCI group without intrathecal injection. ③ intrathecal injection of rapamycin 10 μg(10 μL) 4 hours after CCI operation and the next 2 days once a day. ④ intrathecal injection of NS10 μL 4 hours after CCI operation and the next 2 days once a day. ⑤ intrathecal injection of rapamycin 10 μg(10 μL) 7 days after CCI operation and the next 2 days once a day.⑥ intrathecal injection of NS10 μL 7 days after CCI operation and the next 2 days once a day. Mechanical and thermal threshold were tested 1 day before the CCI operation and 2th、4th、6th、8th、10th、12th、14th days after the CCI operation for all the rats. Lumbar segment of spinal cords was removed for determination of glial fibrillary acidic protein(GEAP) in spinal cord by immuohistochemistry dyeing and assay in the 14th day after CCI operation for all the rats. Results Mechanical and thermal hyperalgesia emerged on 4th day and maintained till 14th day after CCI operation(P<0.05). After intrathecal injection of rapamycin 4 hours or 7days after CCI, mechanical and thermal threshold significantly increased compared to intrathecal injection of NS(P<0.05). And the sum area of GFAP positive and the mean density of GFAP positive area in the dorsal horn of operation side greatly increased in rapamycin treated groups compared NS treated groups(P<0.05). Conclusion Intrathecal injection of rapamycin may attenuate CCI induced hyperalgesia and inhibit the activation of astrocyte.
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