摘要
目的 观察水仙子提取物对大鼠高脂血症的预防与治疗作用,及对肝脏脂肪性病变的保护作用.方法 水仙子经组织匀浆、过滤、离心后冷冻干燥,得到提取物干粉.(1)预防性实验:在建立高脂血症模型的同时给以提取物进行干预,实验结束后检测大鼠血脂水平及观察肝脏的病理变化;(2)治疗性实验:建立高脂血症模型后,以最优预防剂量进行干预,实验结束后观察上述指标外,并检测肝脏匀浆液中的超氧化物歧化酶(SOD)活力及丙二醛水平.结果 (1)预防性实验:不同剂量提取物均可较好的抑制大鼠血清中总胆固醇(TC)、甘油三酯(TG)和低密度载脂蛋白(LDL-C)的升高及高密度载脂蛋白(HDL-C)的下降,并有效地抑制肝脏的脂肪性病变;其中以高剂量组预防效果最为明显.高剂量组与阴性对照组比较,TC(3.23±0.01)mmol/L对(6.56±0.01)mmol/L、TG(2.33±0.01)mmol/L对(4.12±0.02)mmol/L、LDL-C(2.02±0.01)mmol/L对(3.91±0.02)mmol/L、HDL-C(0.98±0.01)mmol/L(0.76±0.01)mmol/L,差异均有统计学意义(P<0.01);(2)治疗性实验:水仙子提取物可有效调节高脂血症大鼠血脂水平,治疗组与阴性对照组比较,TC(3.67±0.31)mmol/L对(6.33±0.52)mmol/L、TG(1.99±0.11)mmol/L对(4.08±0.24)mmol/L、LDL-C(1.57±0.12)mmol/L对(3.78±0.14)mmol/L、HDL-C(1.10±0.03)mmol/L对(0.77±0.02)mmol/L,均差异有统计学意义(P<0.01);明显逆转肝脏的脂肪性病变,提高肝脏匀浆液中的SOD活力,降低丙二醛水平,高剂量组与阴性对照组比较SOD为(276.3±26.8)U/mg对(165.4±16.7)U/mg,丙二醛为(3.67±1.23)nmol/mg对(7.45±2.33)nmol/mg,差异均有统计学意义(P<0.01).结论 水仙子提取物能有效防治大鼠高脂血症的发生和肝脏的脂肪变性,且有一定的抗氧化能力.
Objective To investigate the preventive and therapeutic effects of shuixianzi extracts on hyperlipidemia rats, and on fatty liver pathology. Methods Shuixianzi was homogenized and filtered. Then the filtrate was freeze-dried after centrifugation. The powder was just the extracts of shuixianzi. During the establishment of rat hyperlipidemic model, the extract was given at the same time. At the end of this experiment, the changes of blood lipid and liver pathology were observed. In therapeutic experiments, after the hyperlipidemia model was established, optimal dose of extract was given, then the changes of blood lipid and liver pathology were also observed and the levels of superoxide dismutase (SOD) and malondialdehyde (MIA) were tested. Results In preventive experiments, high dose of extracts of shuixianzi versus negative control could inhlbit both the increase of TC, TG, LDL-C and the drop of HDL-C. [TC: (3.23±0.01) vs. (6.56±0.01) mmol/L; TG:(2.33±0.01) vs. (4.12±0.02) mmol/L; LDL-C: (2.02±0.01) vs. (3.91±0.02) mmol/L; HDL-C: (0.98±0.01) vs. (0.76±0.01) mmol/L, all P〈0.01]. At the same time, the extracts could inhibit the pathological changes of fatty liver. In therapeutic experiments, extracts versus control could regulate the serum lipid levels [TC: ( 3.67 ± 0.31 ) vs. ( 6.33 ± 0.52 ) mmol/L; TG: ( 1.99 ±0.11) vs. (4.08±0.24) mmol/L; LDL-C: (1.57±0.12) vs. (3.78±0.14) mmol/L; HDL-C:(1.10±0.03) vs. (0.77±0.02) mmol/L, all P〈0.01] and could reverse fatty changes of liver in hyperlipidemic rats. At the same time the extracts versus control could also increase the activity of SOD [(276.3±26.8) vs. (165.4±16.7) U/mg, P〈0.01] and decrease the level of MDA [(3.67±1.23) vs. (7.45±2.33) nmol/mg, P〈0.01]. Conclusions The extracts of shuixianzi could prevent and treat the hyperlipidemia, inhibit the fatty pathological change of liver, and also have the antioxidant function.
出处
《中华老年医学杂志》
CAS
CSCD
北大核心
2010年第12期1020-1024,共5页
Chinese Journal of Geriatrics
基金
基金项目:广东省财政厅基金(2008B080703065)
关键词
幼虫
高脂血症
脂肪肝
Larva
Hyperlipidemias
Fatty liver