Hypoglycemic Effects of Swertia Punicea Hemsl on Alloxan-Induced Diabetic Mice
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摘要:
目的 对紫红獐牙菜4个提取部位进行降血糖活性筛选。 方法 采用乙醇提取法提取紫红獐牙菜的乙醇提取物,并将提取物依次用石油醚、氯仿、乙酸乙酯、正丁醇进行萃取,得到氯仿、乙酸乙酯、正丁醇、水4个部位,对此4个提取部位进行由四氧嘧啶诱导的1型糖尿病小鼠降血糖活性筛选,每天称量各组小鼠饮食饮水量,从第3天开始,每2 d称1次体重,第7天、第14天断尾取血测量各组小鼠血糖值。 结果 紫红獐牙菜乙酸乙酯,水部位能显著增加糖尿病小鼠体重(P < 0.05)、降低糖尿病小鼠饮食量( P < 0.05),饮水量( P < 0.05),血糖值( P < 0.05)。 结论 紫红獐牙菜乙酸乙酯部位、水部位能显著改善由四氧嘧啶诱导的1型糖尿病小鼠三多一少症状,显著降低糖尿病小鼠血糖,具有较强的降血糖活性。 -
关键词:
- 紫红獐牙菜 /
- 四氧嘧啶性糖尿病小鼠 /
- 降血糖活性
Abstract:Objective To screen the hypoglycemic activity of 4 extracts of Swertia Punicea Hemsl. Methods The ethanol extract of Swertia Punicea Hemsl was extracted by ethanol extraction, and the extracts were successively extracted with petroleum ether, chloroform, ethyl acetate and n-butanol to obtain 4 parts: chloroform, Ethyl Acetate, n-butanol and water, the 4 extracts were screened for hypoglycemic activity in Type I diabetic mice induced by alloxan. The diet and water of each group were measured daily starting from day 3; weight of all mice were measured every 2 days and blood glucose of each group was measured on the 7th and 14th day. Results The body weight of the diabetic mice was significantly increased (P < 0.05), and the food intake, amount of drinking water, blood glucose were significantly decreased ( P < 0.05) in the diabetic mice fed with the water-soluble fraction and ethyl acetate extract fraction of Swertia Punicea Hemsl. Conclusion The water-soluble fraction and ethyl acetate extract fraction of Swertia Punicea Hemsl could significantly improve the symptoms of polydipsia, polyphagia, polyuria and weight loss in type I diabetic mice induced by alloxan, and significantly reduce the blood glucose of diabetic mice, showing a strong hypoglycemic activity. -
表 1 小鼠血糖测定操作步骤(μL)
Table 1. Procedures for blood glucose determination in mice (μL)
组分 样本管 校准管 空白管 样本 10 — — 校准液 — 10 — 蒸馏水 — — 10 试剂 1000 1000 1000 表 2 紫红獐牙菜提取部位对高血糖小鼠体重变化的影响[( $\bar x \pm s $),g]
Table 2. Effect of extract parts of S. puniccea Hemsl on weight changes of hyperglycemic mice [( $\bar x \pm s $),g]
组别 剂量(mg/kg) n 第3天 第5天 第7天 第9天 第11天 第13天 正常组 生理盐水 10 9.2 ± 3.0**△ 1.7 ± 1.8 1.6 ± 1.2 −0.3 ± 0.7*△ 0.5 ± 1.0* 0.4 ± 0.7 模型组 生理盐水 10 2.6 ± 1.0 1.5 ± 1.1 1.4 ± 0.7 −3.6 ± 1.1 2.1 ± 1.6 −0.2 ± 1.0 二甲双胍 600 10 2.8 ± 1.4 1.3 ± 1.2 1.4 ± 1.1 −2.3 ± 0.5* 0 ± 1.6* −0.3 ± 0.5 氯仿 600 10 2.3 ± 1.5 2.2 ± 1.8 1.1 ± 0.8 −3.5 ± 1.9△ 1.7 ± 1.2△ −0.8 ± 1.4 乙酸乙酯 600 10 3.0 ± 0.9 −0.6 ± 1.7*△ 1.1 ± 1.5 −2.0 ± 1.0* 0.2 ± 1.5* −0.3 ± 1.1 正丁醇 600 10 1.0 ± 1.2*△ 1.4 ± 0.9 1.6 ± 1.0 −1.5 ± 0.8* 0.4 ± 0.9* −0.8 ± 1.3 水部位 600 10 1.2 ± 1.3△ 1.7 ± 0.9 1.0 ± 0.8 −1.3 ± 1.4*△ −0.7 ± 1.0* −0.8 ± 1.3 F 26.7 3.7 0.5 9.7 5.2 1.5 P < 0.01 < 0.01 0.8 < 0.01 < 0.01 0.20 与模型组比较,* P < 0.05, **P < 0.01;与二甲双胍给药组比较, △P < 0.05。 表 3 紫红獐牙菜提取部位对高血糖小鼠饮食量的影响[( $\bar x \pm s$),g/(kg·d)]
Table 3. Effect of extract parts of S. puniccea Hemsl on food intake of hyperglycemic mice [( $\bar x \pm s$),g/(kg·d)]
组别 剂量(mg/kg) n 第3天 第5天 第7天 第9天 第11天 第13天 正常组 生理盐水 10 199.9 ± 15.9**△ 163.4 ± 10.4**△ 177.3 ± 1.5**△ 192.9 ± 5.7**△ 183.7 ± 3.7**△ 168.9 ± 10.3**△ 模型组 生理盐水 10 819.5 ± 24.8 700.4 ± 17.0 639.1 ± 15.2 830.6 ± 14.0 696.8 ± 4.3 626.1 ± 7.9 二甲双胍 600 10 553.6 ± 65.4** 509.0 ± 16.2** 386.8 ± 87.3** 507.2 ± 170.0** 352.5 ± 77.8** 292.5 ± 38.8** 氯仿 600 10 725.5 ± 32.8**△ 683.8 ± 65.2△ 510.7 ± 92.1**△ 625.1 ± 28.6**△ 562.8 ± 79.3**△ 445.0 ± 36.5**△ 乙酸乙酯 600 10 562.7 ± 129.1** 483.0 ± 88.0** 378.9 ± 23.9** 475.1 ± 96.6** 340.7 ± 35.5** 395.4 ± 24.8**△ 正丁醇 600 10 505.4 ± 51.5** 475.4 ± 96.8** 353.4 ± 62.0** 455.1 ± 92.3** 458.0 ± 61.4**△ 361.8 ± 66.4**△ 水部位 600 10 503.7 ± 20.1** 389.7 ± 16.5**△ 349.3 ± 0.2** 447.7 ± 18.2** 318.6 ± 44.7** 329.0 ± 22.9**△ F 93.2 93.8 62.9 49.0 94.9 147.2 P < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 与模型组比较,* P < 0.05, **P < 0.01;与二甲双胍给药组比较, △P < 0.05。 表 4 紫红獐牙菜提取部位对高血糖小鼠饮水量的影响[( $\bar x \pm s $),mL/(kg·d)]
Table 4. Effect of extract parts of S. puniccea hemsl on amount of drinking water of hyperglycemic mice [( $\bar x \pm s $),mL/(kg·d)]
组别 剂量(mg/kg) n 第3 天 第5 天 第7天 第9 天 第11天 第13 天 正常组 生理盐水 10 195.2 ± 55.1**△ 136.4 ± 0.8**△ 251.4 ± 142.1**△ 129.1 ± 4.7**△ 129.9 ± 3.6**△ 120.7 ± 5.1**△ 模型组 生理盐水 10 1381.3 ± 8.1 1251.1 ± 94.8 1158.8 ± 101.8 1417.6 ± 29.0 1249.1 ± 83.0 1145.1 ± 27.0 二甲双胍 600 10 1082.9 ± 67.4** 1121.5 ± 131.7 767.4 ± 32.4** 938.6 ± 105.6** 900.7 ± 160.1** 843.2 ± 228.3** 氯仿 600 10 1194.2 ± 200.2** 1385.0 ± 537.9△ 981.0 ± 197.4**△ 1356.7 ± 93.9△ 902.1 ± 50.9** 876.3 ± 206.6** 乙酸乙酯 600 10 1295.0 ± 286.0△ 1081.0 ± 192.1 881.0 ± 88.6**△ 1015.3 ± 183.7** 1126.7 ± 283.6△ 1233.6 ± 254.4△ 正丁醇 600 10 974.7 ± 9.0** 1152.5 ± 252.2 891.7 ± 53.9**△ 1079.2 ± 139.0**△ 1099.1 ± 109.2△ 998.5 ± 234.0 水部位 600 10 1017.6 ± 127.0** 825.6 ± 203.1**△ 745.7 ± 91.8** 816.7 ± 203.5**△ 816.0 ± 28.3** 781.0 ± 54.2** F 66.5 23.7 56.2 99.7 66.5 38.2 P < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 与模型组比较,* P < 0.05, **P < 0.01;与二甲双胍给药组相比较, △P < 0.05。 表 5 紫红獐牙菜提取部位对高血糖小鼠血糖的影响[( $\bar x \pm s $),mmol/L]
Table 5. Effect of extract parts of S. puniccea Hemsl on blood sugar of hyperglycemic mice [( $\bar x \pm s $),mmol/L]
组别 剂量
(mg/kg)n 给药前 第7 天 第14天 正常组 生理盐水 10 7.0 ± 1.1 5.0 ± 0.4**△ 5.4 ± 1.0**△ 模型组 生理盐水 10 19.5 ± 3.9 20.0 ± 2.8 24.8 ± 4.7 二甲双胍 600 10 19.4 ± 4.1 11.5 ± 4.1** 13.2 ± 5.5** 氯仿 600 10 19.2 ± 3.4 17.0 ± 2.1*△ 24.0 ± 7.1△ 乙酸乙酯 600 10 19.2 ± 3.9 15.0 ± 2.1**△ 19.3 ± 2.8*△ 正丁醇 600 10 19.2 ± 4.6 16.7 ± 2.8*△ 23.3 ± 5.7△ 水部位 600 10 19.2 ± 3.0 14.7 ± 1.7**△ 18.7 ± 6.0**△ F 15.1 33.3 17.1 P < 0.01 < 0.01 < 0.01 与模型组比较,* P < 0.05, **P < 0.01;与二甲双胍给药组比较, △P < 0.05。 -
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