The present study was undertaken to evaluate the analgesic and anti-inflammatory activities of ethanolic extract of Terminalia chebula (commonly known as Haritaki) fruits in experimental animal models. The study was c...The present study was undertaken to evaluate the analgesic and anti-inflammatory activities of ethanolic extract of Terminalia chebula (commonly known as Haritaki) fruits in experimental animal models. The study was carried out using Swiss Albino mice (20-25 g) and Long Evans rats (100-150 g) of either sex. The analgesic activity of Terminalia chebula was assessed by using hot plate method. For the determination of analgesic effect, doses of ethanolic extract of Terminalia chebula used in the present study were 250 mg/kg and 500 mg/kg body weight (BW). Anti-inflammatory effect was analyzed by carrageenan induced paw edema method with the administration dose of 300 mg/kg BW of animals. The analysis of experimental data was performed by statistical process of ANOVA to determine the variability of sample, while Dunnet’s test was performed for evaluation of comparative analgesic and anti-inflammatory activity of Terminalia chebula with control and standard. The animals were divided into four treatment groups of six animals each and the “Mean ± SEM” is the statistical identifiable value of the data and P values <0.05 was considered statistically significant. Hot plate test showed a significant increase in the mean reaction time to heat stimuli in hot plate method at both 250 mg/kg and 500 mg/kg BW doses throughout the observation period in 30 minutes and 60 minutes after treatment, which was comparable to the standard ketorolac and control group. In carrageenan induced paw edema method, considerable results were found after determining the percentage change in paw volume in extract. In both cases of analgesic and anti-inflammatory study, % inhibition of pain and inflammation were evaluated. Comparing with control, largest inhibition was found in inhibiting inflammation 5 hours after treatment, while the largest inhibition of pain was obtained in 30 minutes and 60 minutes after treatment of doses. The present study suggests that ethanolic extract of Terminalia chebula fruits has significant analgesic and anti-inflammatory activities.展开更多
目的观察丙泊酚在vlPAG对大鼠伤害性感受的影响及GABAA受体在其中可能的作用。方法Sprague-Daw ley(SD)♀大鼠随机分组,丙泊酚(Propofol,Pro)和荷包牡丹碱(B icucu lline,B ic)采用中脑导水管周围灰质腹外侧区(ven-trolateral portion o...目的观察丙泊酚在vlPAG对大鼠伤害性感受的影响及GABAA受体在其中可能的作用。方法Sprague-Daw ley(SD)♀大鼠随机分组,丙泊酚(Propofol,Pro)和荷包牡丹碱(B icucu lline,B ic)采用中脑导水管周围灰质腹外侧区(ven-trolateral portion of the PAG,vlPAG)注射。行为学实验采用热板法和福尔马林实验,分别以舔后爪潜伏时间(Hot-p latelatency,HPL)和疼痛(累计)评分为指标。免疫组化方法观察丙泊酚在vlPAG对福尔马林单侧足底皮下注射诱发的脊髓背角Fos蛋白表达的影响。结果行为学部分:两种疼痛模型中丙泊酚(10 g.L-1)vlPAG注射引起痛敏(P<0.01)。热板法实验中,丙泊酚vlPAG微量注射的痛敏作用可被相同部位预先注射25 mg.L-1B ic在10和20 m in时间点分别拮抗70%和71%(均P<0.01),在30和40 m in完全拮抗。在福尔马林实验中,丙泊酚vlPAG微量注射使福尔马林疼痛评分增加,此作用可被B ic(25 mg.L-1)在60 m in拮抗57%(P<0.05)。免疫组化部分中,丙泊酚vlPAG微量注射使福尔马林引起的脊髓背角各层FLI阳性细胞数明显增多(P<0.01),B ic vlPAG微量注射(25 mg.L-1)可部分拮抗丙泊酚vlPAG微量注射的作用(P<0.01)。结论在大鼠vlPAG微量注射丙泊酚能产生痛敏作用;GABAA受体部分介导了丙泊酚的以上作用。展开更多
目的观察不同剂量咪达唑仑对氯胺酮镇痛效应的影响,为临床合理配伍使用药物提供依据。方法腹腔注射25 mg/kg氯胺酮建立镇痛模型,150只小鼠均分为NS组、M组、K组、M1K组和M2K组,采用甩尾法、热板法和扭体法(n=10)分别观察腹腔注射1、2 mg...目的观察不同剂量咪达唑仑对氯胺酮镇痛效应的影响,为临床合理配伍使用药物提供依据。方法腹腔注射25 mg/kg氯胺酮建立镇痛模型,150只小鼠均分为NS组、M组、K组、M1K组和M2K组,采用甩尾法、热板法和扭体法(n=10)分别观察腹腔注射1、2 mg/kg咪达唑仑对氯胺酮镇痛小鼠甩尾潜伏期(TFL)、热板法痛阈(HPPT)和扭体次数(WTs)的影响。结果给药后5、10、15、20 min K组TEL、HPPT延长(P<0.05);各时点M组小鼠TFL、HPPT均无明显变化;M1K组和M2K组给药后10、15、20 min TFL、HPPT延长,给药后15 min M1K组和M2K组TEL、HPPT明显长于K组(P<0.05或P<0.01)。给药后15 min内K、M1K和M2K组小鼠WTs明显少于NS组(P<0.01)。但K、M1K和M2K组间差异无统计学意义(P<0.05或P<0.01)。结论一定剂量的咪达唑仑可以增强氯胺酮的体表镇痛作用。展开更多
文摘The present study was undertaken to evaluate the analgesic and anti-inflammatory activities of ethanolic extract of Terminalia chebula (commonly known as Haritaki) fruits in experimental animal models. The study was carried out using Swiss Albino mice (20-25 g) and Long Evans rats (100-150 g) of either sex. The analgesic activity of Terminalia chebula was assessed by using hot plate method. For the determination of analgesic effect, doses of ethanolic extract of Terminalia chebula used in the present study were 250 mg/kg and 500 mg/kg body weight (BW). Anti-inflammatory effect was analyzed by carrageenan induced paw edema method with the administration dose of 300 mg/kg BW of animals. The analysis of experimental data was performed by statistical process of ANOVA to determine the variability of sample, while Dunnet’s test was performed for evaluation of comparative analgesic and anti-inflammatory activity of Terminalia chebula with control and standard. The animals were divided into four treatment groups of six animals each and the “Mean ± SEM” is the statistical identifiable value of the data and P values <0.05 was considered statistically significant. Hot plate test showed a significant increase in the mean reaction time to heat stimuli in hot plate method at both 250 mg/kg and 500 mg/kg BW doses throughout the observation period in 30 minutes and 60 minutes after treatment, which was comparable to the standard ketorolac and control group. In carrageenan induced paw edema method, considerable results were found after determining the percentage change in paw volume in extract. In both cases of analgesic and anti-inflammatory study, % inhibition of pain and inflammation were evaluated. Comparing with control, largest inhibition was found in inhibiting inflammation 5 hours after treatment, while the largest inhibition of pain was obtained in 30 minutes and 60 minutes after treatment of doses. The present study suggests that ethanolic extract of Terminalia chebula fruits has significant analgesic and anti-inflammatory activities.
文摘目的观察丙泊酚在vlPAG对大鼠伤害性感受的影响及GABAA受体在其中可能的作用。方法Sprague-Daw ley(SD)♀大鼠随机分组,丙泊酚(Propofol,Pro)和荷包牡丹碱(B icucu lline,B ic)采用中脑导水管周围灰质腹外侧区(ven-trolateral portion of the PAG,vlPAG)注射。行为学实验采用热板法和福尔马林实验,分别以舔后爪潜伏时间(Hot-p latelatency,HPL)和疼痛(累计)评分为指标。免疫组化方法观察丙泊酚在vlPAG对福尔马林单侧足底皮下注射诱发的脊髓背角Fos蛋白表达的影响。结果行为学部分:两种疼痛模型中丙泊酚(10 g.L-1)vlPAG注射引起痛敏(P<0.01)。热板法实验中,丙泊酚vlPAG微量注射的痛敏作用可被相同部位预先注射25 mg.L-1B ic在10和20 m in时间点分别拮抗70%和71%(均P<0.01),在30和40 m in完全拮抗。在福尔马林实验中,丙泊酚vlPAG微量注射使福尔马林疼痛评分增加,此作用可被B ic(25 mg.L-1)在60 m in拮抗57%(P<0.05)。免疫组化部分中,丙泊酚vlPAG微量注射使福尔马林引起的脊髓背角各层FLI阳性细胞数明显增多(P<0.01),B ic vlPAG微量注射(25 mg.L-1)可部分拮抗丙泊酚vlPAG微量注射的作用(P<0.01)。结论在大鼠vlPAG微量注射丙泊酚能产生痛敏作用;GABAA受体部分介导了丙泊酚的以上作用。
文摘目的观察不同剂量咪达唑仑对氯胺酮镇痛效应的影响,为临床合理配伍使用药物提供依据。方法腹腔注射25 mg/kg氯胺酮建立镇痛模型,150只小鼠均分为NS组、M组、K组、M1K组和M2K组,采用甩尾法、热板法和扭体法(n=10)分别观察腹腔注射1、2 mg/kg咪达唑仑对氯胺酮镇痛小鼠甩尾潜伏期(TFL)、热板法痛阈(HPPT)和扭体次数(WTs)的影响。结果给药后5、10、15、20 min K组TEL、HPPT延长(P<0.05);各时点M组小鼠TFL、HPPT均无明显变化;M1K组和M2K组给药后10、15、20 min TFL、HPPT延长,给药后15 min M1K组和M2K组TEL、HPPT明显长于K组(P<0.05或P<0.01)。给药后15 min内K、M1K和M2K组小鼠WTs明显少于NS组(P<0.01)。但K、M1K和M2K组间差异无统计学意义(P<0.05或P<0.01)。结论一定剂量的咪达唑仑可以增强氯胺酮的体表镇痛作用。
