加味四逆散对身心应激模型大鼠胃肠组织GASR、VIPR2mRNA表达的影响

目的:建立慢性应激性胃溃疡大鼠模型,探讨加味四逆散对应激模型大鼠胃液pH、胃黏膜溃疡指数(UI)、胃粘膜病理形态及胃组织胃泌素受体(GASR)和空肠组织血管活性肠肽II型受体(VIPR2)mRNA表达的影响,阐明加味四逆散干预应激性胃粘膜损伤的机制。方法:将Wistar大鼠60只随机分为正常对照组、模型对照组、奥美拉唑组、加味四逆散高、中、低剂量组,每组10只,采用慢性心理性应激方法建立应激性胃溃疡大鼠模型,经加味四逆散等干预后,检测胃液pH并评估胃黏膜溃疡指数(UI),常规HE染色镜下观察胃粘膜形态学改变,RT-PCR法检测胃组织GASR、空肠组织VIPR2mR-NA表达的变化。结果:与模型组比较,加味四逆散方各剂量组、奥美拉唑组大鼠胃液pH不同程度升高,而胃粘膜溃疡指数明显减小,差异均具有显著性意义(P<0.05~0.01);与奥美拉唑组比较,加味四逆散中、高剂量组胃液pH无显著性差异(P>0.05),而胃粘膜溃疡指数明显减小,差异有显著性意义(P<0.05~0.01);胃粘膜HE染色结果显示模型组大鼠胃粘膜弥漫出血、溃疡糜烂,较正常组损伤明显,加味四逆散高、中、低剂量组大鼠胃粘膜损伤较模型组不同程度减轻。正常组及各治疗组胃组织GASRmR-NA表达均较模型组升高,空肠组织VIPR2mRNA表达则降低,差异有统计学意义(P<0.05~0.01),加味四逆散中、高剂量组胃组织GASRmRNA表达均较奥美拉唑组明显升高,差异有统计学意义(P<0.05~0.01),中药高剂量组空肠组织VIPR2mRNA表达较奥美拉唑组则明显降低,差异有统计学意义(P<0.01)。结论:加味四逆散可显著减轻应激性胃粘膜损伤程度,抑制应激所致胃酸分泌,并可改善胃组织GASR、空肠组织VIPR2mRNA表达。     

乳香提取物对大鼠乙酸胃溃疡愈合质量的影响研究

目的探讨乳香提取物对大鼠乙酸胃溃疡愈合质量的影响及OCT技术应用于溃疡愈合质量研究的价值。方法用冰醋酸制备大鼠慢性胃溃疡模型,随机分为4组,分别灌服生理盐水、乳香提取物、奥美拉唑等。用病理及OCT技术对再生黏膜厚度进行动态观察。结果乳香提取物组再生黏膜厚度增加,OCT可以检测到溃疡病灶黏膜下层组织的愈合过程。结论乳香提取物能提高溃疡再生黏膜结构成熟度,提高溃疡愈合质量,OCT对愈合质量的研究具有一定的价值。     

乳香提取物对大鼠乙酸胃溃疡愈合质量的影响研究

目的探讨乳香提取物对大鼠乙酸胃溃疡愈合质量的影响及OCT技术应用于溃疡愈合质量研究的价值。方法用冰醋酸制备大鼠慢性胃溃疡模型,随机分为4组,分别灌服生理盐水、乳香提取物、奥美拉唑等。用病理及OCT技术对再生黏膜厚度进行动态观察。结果乳香提取物组再生黏膜厚度增加,OCT可以检测到溃疡病灶黏膜下层组织的愈合过程。结论乳香提取物能提高溃疡再生黏膜结构成熟度,提高溃疡愈合质量,OCT对愈合质量的研究具有一定的价值。     

补中益气汤的药理作用研究——抗实验性胃溃疡作用与机理

补中益气汤对应激性溃疡,幽门结扎性溃疡、利血平性溃疡模型均有良好的保护作用,对乙酸法胃溃疡模型有明显促进溃疡愈合的作用。其作用机理与该方抑制胃分泌,抑制胃运动、增加胃粘膜血流量以及一定的中枢抑制作用有关。     

铝碳酸镁合奥美拉唑治疗胃溃疡49例临床疗效观察

目的：探讨铝碳酸镁合奥美拉唑治疗胃溃疡的临床疗效。方法：将98例胃溃疡患者随机分为奥美拉唑治疗组（对照组）和铝碳酸镁合奥美拉唑治疗组（观察组）各49例,比较两组患者的临床疗效。结果：观察组患者治疗总有效率为91．8％,显著高于对照组患者的75．5％,组间差异有统计学意义（P〈0．05）。结论：铝碳酸镁合奥美拉唑治疗胃溃疡临床疗效较好,值得临床推广应用。     

Effects of fenugreek seeds and its extracts on plasma lipid profile: a study on rabbits

In this study the effect of varying levels of fenugreek were examined on the plasma lipids of animals pretreated with either a control diet or a high-fat diet for 9 weeks. Although the plasma cholesterol was significantly reduced in both groups, triglyceride levels were only reduced in animals pretreated with the high-fat diet. HDL-cholesterol levels were not significantly altered in and case. In addition, the effect of fenugreek seed powder and some of its extracts were investigated for the determination of the active fraction. Fenugreek seed powder and its extracts at 30% of the animals' diet were observed to greatly affect the plasma lipids when added to animals pretreated with a high-fat. Fenugreek and its extracts reduced the levels of cholesterol, triglyceride and LDL-cholesterol with no effect on the HDL-cholesterol. This selective reduction in LDL-cholesterol results in the improvement of the ratio of HDL-cholesterol to LDL-cholesterol which is beneficial in the prevention of atherosclerosis. In addition, the ratio of total cholesterol to HDL-cholesterol was reduced. This hypolipidaemic effect of fenugreek was associated with the defatted fraction of the seed powder, and among the extracts analysed, the crude saponin extract was the most effective fraction with respect to the fenugreek seeds. The improvement of the plasma lipid profile by fenugreek treatment further supports the use of fenugreek seeds as a hypolipidaemic agent in the improvement of lipid disorders. Copyright © 1998 John Wiley & Sons, Ltd.     

法莫替丁联合奥美拉唑治疗胃溃疡临床疗效观察

目的：观察法莫替丁联合奥美拉唑治疗胃溃疡的疗效和不良反应。方法：选择2007年2月～2010年3月胃溃疡患者84例,随机分为两组：法莫替丁联合奥美拉唑组（治疗组）和奥美拉唑组（对照组）。服药四周后胃镜检查评价胃粘膜的改善情况并根据调查表评价患者的临床症状缓解情况。结果：两组患者在溃疡愈合率和有效率方面存在明显差异（P〈0．05）,法莫替丁联合奥美拉唑组无论在愈合率（72．3％）还是在有效率（94％）方面均高于奥美拉唑组（54％,79％）。治疗组患者平均药品费用在510±175元;观察组患者平均药品费用在1200±232元,两组患者在药品费用上存在显著差别（P〈0．05）。两组患者均无明显不良反应。结论：与单独应用奥美拉唑比较,法莫替丁联合奥美拉唑能有效改善患者的临床症状,提高胃溃疡的治愈率且更为经济。     

Antiulcerogenic effect of methanolic extract of Emblica officinalis: an experimental study

The ulcer protective potential of methanolic extract of Emblica officinalis Gaertn. (EOE) was assessed in different acute gastric ulcer models in rats induced by aspirin, ethanol, cold restraint stress and pyloric ligation and healing effect in chronic gastric ulcers induced by acetic acid in rats. EOE, 10-50 mg/kg administered orally, twice daily for 5 days showed dose-dependent ulcer protective effects in all the above acute ulcer models (36.0-98.3% protection, P < 0.2 to P < 0.001) and significant ulcer healing effect in dose of 20 mg/kg after 5 (control ulcer index: 20.2+/-2.3 mm(2)/rat, % healing 59.6%, P < 0.001) and 10 (control UI: 11.0+/-1.7, % healing 65.5%, P < 0.01) days treatment. Further study on gastric mucosal factors showed that it significantly decreased the offensive factors like acid (acid output-control 118.7+/-12.1 microEq/4 h, EOE% decrease 65.9%, P < 0.01) and pepsin (peptic output-control 738.8 micromol/4 h, EOE% decrease 46.2%, P < 0.001) and increased the defensive factors like mucin secretion (TC:P ratio-control 1.21+/-0.15, EOE% increase 95.0%, P < 0.01), cellular mucus (TC:P ratio-control 1.16+/-0.13, EOE% increase 53.4%, P < 0.05) and life span of mucosal cells (DNA content of gastric juice-control 77.3+/-8.7 microg/m per 100 g body weight, EOE% decrease 42.1%, P < 0.05). EOE showed significant antioxidant effect in stressed animals (control UI 35.8+/-2.5, antioxidant status: LPO 0.58+/-0.03 nmol MDA/mg protein, SOD and CAT 227.8+/-6.3 and 18.4+/-1.2 U/mg protein respectively; EOE% decrease in UI 88.2%, mucosal LPO 69.0%, SOD 53.1% and increase in mucosal CAT 59.8%, P < 0.001 respectively) and did not have any effect on cell proliferation in terms of DNA microg/mg protein or glandular weight. The results showed that EOE had significant ulcer protective and healing effects and this might be due to its effects both on offensive and defensive mucosal factors.     

溃疡合剂的药理作用研究

本研究采用胃粘膜急性损伤模型 ,胃组织内 PGE2 含量测定 ,胃壁结合粘液含量测定为指标 ,观察溃疡合剂的胃粘膜细胞保护作用。结果 :本方对无水乙醇性胃粘膜损伤具有良好的抗损伤作用 ;能显著提高正常大鼠和无水乙醇损伤胃粘膜大鼠胃组织内 PGE2 含量 ;明显提高正常大鼠胃壁结合粘液含量     

Gastric anti-secretory and anti-ulcerogenic effects of Dombeya buettneri in rats

The effects of an aqueous extract of the leaves of Dombeya buettneri on gastric acid secretion and ethanol-induced gastric mucosal damage were studied in rats. Gastric acid secretion was measured by continuous perfusion in urethane-anaesthetised rats. Intragastric perfusion with the extract caused significant reduction in basal and histamine-stimulated gastric acid secretion. Pretreatment with the extract also reduced the extent of gastric mucosal damage induced by oral ethanol (75% v/v), but had no effect on mucus secretion. It is suggested that the consumption of an extract of the leaves of D. buettneri may be beneficial in the prevention and treatment of peptic ulcer disease.     

葛根素对大鼠应激性胃黏膜损伤的保护作用

目的:研究葛根素对大鼠应激性胃黏膜损伤的保护作用。方法:采用浸水束缚应激法建立大鼠应激性胃溃疡模型。气囊法记录胃运动,激光多普勒血流计测定胃黏膜血流量,比色法测定胃黏膜组织一氧化氮(NO)和内皮素(ET)含量,并观察胃黏膜组织病理学变化。结果:葛根素可以明显减轻浸水应激引起的胃黏膜损伤;抑制胃运动亢进,尤其是降低胃运动指数、收缩时间百分比和高强度收缩次数;增加胃黏膜血流量;同时增加胃黏膜NO含量,并降低ET含量;胃黏膜组织损害程度显著减轻。结论:葛根素对应激性胃黏膜损伤具有明显的保护作用,其作用机制可能是通过舒张胃黏膜血管,升高胃黏膜NO水平,同时抑制胃运动亢进,增加局部胃黏膜血流量而产生作用。     

加味四逆散对慢性心理性应激胃溃疡模型大鼠胃黏膜的保护作用

目的:建立大鼠慢性心理性应激胃溃疡模型,观察加味四逆散(JWSNS)对模型大鼠胃黏膜形态、血浆促肾上腺皮质激素(ACTH)、血清皮质醇(CORT)和黏膜血流量等的影响,探讨其保护胃黏膜的机制.方法:Wistar大鼠随机分为正常组,模型组,加味四逆散高、中、低剂量(10,5,2.5 g·kg-1)组,奥美拉唑(3.0×10-3g·kg-1)组,除正常组外,其余各组采用10种不可预知刺激法建立慢性大鼠心理性应激胃溃疡模型,灌胃给药4周后,常规HE染色观察胃组织形态学改变及胃黏膜溃疡指数(UI),多道生理记录仪检测胃黏膜血流量(GMBF),放免γ计数器检测血浆ACTH,血清CORT的变化.结果:模型组大鼠胃黏膜弥漫出血、溃疡糜烂,其胃黏膜UI,血浆ACTH,血清CORT与正常组比较均明显升高(P＜0.01),GMBF,胃黏膜修复有效率与正常组比较均明显下降(P＜0.01),加味四逆散高、中、低剂量组大鼠胃黏膜损伤较模型组不同程度减轻,其胃黏膜UI,血浆ACTH,血清CORT与模型组比较均明显下降(P＜0.01或P＜0.05),而GMBF,胃黏膜修复有效率与模型组比较均明显升高(P＜0.01或P＜0.05).结论:慢性心理性应激对大鼠胃黏膜有明显损伤作用,加味四逆散能显著减轻心理性应激导致的胃黏膜损伤,有效减低溃疡指数,调整神经内分泌功能,增加GMBF和提高胃黏膜修复能力.     

Antioxidant properties of germinated fenugreek seeds

Fenugreek (Trigonella foenum-graecum) is used as a spice, vegetable and a medicinal plant. Since antioxidant properties have been linked to health benefits of natural products, such properties were studied in germinated fenugreek seeds which are considered to be more beneficial than dried seeds. Different fractions of the germinated seeds were used to determine their antioxidant potential at different levels. The assays employed were ferric reducing antioxidant power, radical scavenging by 1,1-diphenyl-2-picrylhydrazyl, ferrylmyoglobin/2,2'-azobis-3-ethylbenzthiazoline-6-sulfonic acid, pulse radiolysis, oxygen radical absorbance capacity and inhibition of lipid peroxidation in mitochondrial preparations from rat liver. An aqueous fraction of fenugreek exhibited the highest antioxidant activity compared with other fractions. As the quantity of phenolic and flavonoid compounds can be related to antioxidant activity, the contents from these extracts were measured. HPLC analysis was carried out to detect polyphenols, flavonoids and other components. This study reveals significant antioxidant activity in germinated fenugreek seeds which may be due partly to the presence of flavonoids and polyphenols.     

奥美拉唑联合复方丹参滴丸治疗老年胃溃疡Meta分析

目的评价奥美拉唑联合复方丹参滴丸治疗老年溃疡的疗效。方法计算机检索中国期刊库、万方数据库、维普数据库中关于奥美拉唑联合复方丹参滴丸治疗老年溃疡的随机对照试验,对符合标准的随机对照试验进行Meta分析。结果最终有9篇文献纳入研究,Meta分析表明,治疗相同时间后治愈率试验组疗效优于对照组,总效应Z=5.97(P<0.00 001),OR及其95%可信区间OR=3.62,95%,CI:2.37,5.51,在控制疼痛方面,其中5项研究对Meta分析显示控制疼痛试验组亦显著优于对照组,总效应Z=4.46(P<0.00 001),OR及其95%可信区间OR=2.98,95%,CI:1.84,4.81。结论奥美拉唑联合复方丹参滴丸治疗老年溃疡疗效明显,值得推广。     

中医治疗胃溃疡46例的临床研究

目的：研究采用中医治疗方法医治胃溃疡疾病的临床疗效。方法：对患者进行分组,其中治疗组有46例,采用中医中药治疗;对照组46例,给予阿莫西林、奥美拉唑以及甲硝唑西医三联疗法。结果：治疗组采用中医治疗方法,治疗总有效率为97．8％,对照组治疗总有效率为86．9％,对比两组疗效发现治疗组治疗效果均优于对照组。结论：采用中医治疗方法医治胃溃疡疾病,获得治疗效果显著优于西医治疗组疗效,可在-临床上治疗胃溃疡疾病时采用。     

Protective effect of fenugreek (Trigonella foenum graecum) seeds in experimental ethanol toxicity

The study investigates the effect of aqueous extract of fenugreek seeds (Trigonella foenum graecum) on lipid peroxidation and antioxidant status in experimental ethanol toxicity in rats. The ability of the seed extract to prevent iron-induced lipid peroxidation in vitro was also investigated. Ethanol feeding for 60 days resulted in significant increases in the activities of serum aspartate transaminase, alanine transaminase and alkaline phosphatase. The levels of serum lipid hydroperoxides and thiobarbituric acid reactive substances in liver and brain were also significantly elevated. Significantly lower activities of superoxide dismutase, catalase, glutathione peroxidase, glutathione S-transferase and glutathione reductase were observed in liver and brain accompanied by depletion in glutathione, ascorbic acid and alpha-tocopherol concentrations. Activity of Ca(2+) ATPase in brain was significantly lowered. Simultaneous administration of aqueous extract of fenugreek seeds with ethanol prevented the enzymatic leakage and the rise in lipid peroxidation and enhanced the antioxidant potential. The seeds exhibited appreciable antioxidant property in vitro which was comparable with that of reduced glutathione and alpha-tocopherol. Further, histopathological examination of liver and brain revealed that, aqueous extract of fenugreek seeds could offer a significant protection against ethanol toxicity.     

安胃疡胶囊辅助治疗老年胃溃疡预防复发临床疗效观察

目的观察安胃疡胶囊辅助治疗老年胃溃疡预防复发的临床综合疗效,并探讨其对溃疡愈合质量及其生命质量影响的机制。方法选择老年胃溃疡患者84例,按照序数分为均等的A组和B组,各42例,A组给予安胃疡胶囊+奥美拉唑,B组单独用奥美拉唑。观察治疗后2周、2个月溃疡愈合进程,并随访观察开始治疗后6个月及9个月后胃溃疡愈合后复发情况,问卷调查治疗2个月前后SF-36健康量表变化。结果治疗2周后A组的胃溃疡深层破损长度缩小率明显高于B组(P<0.01);2组在治疗2个月后溃疡瘢痕总S期获得率分别为90%和83%;2组溃疡S2期获得率分别为69%和36%,2组比较均无显著性差异(P均>0.05),A组9个月溃疡复发率为7%,明显低于B组的43%,P<0.01,并在治疗后2个月生命质量3个维度的改善度高于B组(P<0.01)。结论安胃疡胶囊辅助治疗老年胃溃疡,具有胃黏膜保护作用,不良反应发生率低,疗效显著,显著提高溃疡愈合质量及患者生命质量,易被老年患者接受。     

Evaluation of the gastric antiulcerogenic effects of Solanum nigrum, Brassica oleracea and Ocimum basilicum in rats

Antiulcerogenic activities of three plant drugs were studied against aspirin-induced gastric ulcers in rats. In addition, their effects on output of gastric acid and pepsin and hexosamine concentrations in gastric fluid were recorded in ulcerated and non-ulcerated rats. Solanum nigrum (aerial parts) powder and its methanolic extract decreased the ulcer index significantly. The activity may be due to inhibition of acid and pepsin secretions and/or their in vitro ability to bind these. Brassica oleracea (leaf) powder did not affect the ulcer index significantly but its aqueous extract lowered the index and increased hexosamine levels, suggesting gastric mucosal protection. Ocimum basilicum (aerial parts) powder and its aqueous and methanolic extracts decreased the index. Moreover, the acid output was decreased by its methanolic extract while hexosamine secretion was enhanced. This suggests that its antiulcerogenic effect is due to decreases of acid and pepsin outputs which enhance gastric mucosal strength. The reference drug gefarnate decreased the ulcer index by increasing the hexosamine level only. Cimetidine inhibited the acid production but did not decrease the ulcer index.     

普胃丸对胃溃疡复发大鼠胃组织VEGF和bFGF表达的影响

目的:观察普胃丸(PWP)对胃溃疡(GU)复发过程中大鼠胃组织中血管内皮生长因子(VEGF)和碱性成纤维细胞生长因子(bFGF)表达的影响.方法:将SD大鼠随机分为6组,即正常对照组、假手术组、模型未复发组、模型复发组、奥美拉唑组、PWP组.采用醋酸烧灼法建立大鼠慢性GU模型,造模24 h后备组大鼠ig给药,奥美拉唑组大鼠3.6 mg·kg -1,1次/d,PWP组大鼠40 mg·kg-1,1次/周,其余各组每天给予等量蒸馏水.于造模第90天,除模型未复发组外,其余各组大鼠均ip白细胞介素-1β(1L-1β)1 μg·kg-1,诱导大鼠GU复发.在溃疡复发后48 h测定GU复发率,并分别采用免疫组化法和Western blot法检测胃组织中VEGF和bFGF的表达.结果:正常对照组、假手术组和模型未复发组均未见溃疡复发,模型复发组溃疡复发率为83.3％,PWP组和奥美拉唑组溃疡复发率分别为11.1％和33.3％,明显低于模型复发组(P＜0.01);模型复发组VEGF和bFGF的平均阳性密度分别为127.03±13.47,122.40±23.17;平均吸光度分别为126.78±13.62,121.16±20.09,其值较正常对照组、假手术组和模型未复发组高(P＜0.01),但明显低于PWP组和奥美拉唑组(P＜0.01).结论:PWP可通过增加胃组织中VEGF和bFGF的表达来降低溃疡复发率.     

摩罗丹（浓缩丸）对胃黏膜损伤保护及镇痛抗炎止血作用研究

目的：评价摩罗丹（浓缩丸）镇痛、抗炎、止血以及对大鼠胃黏膜损伤的保护作用,进一步补充摩罗丹（浓缩丸）在药效学方面的实验研究。方法：通过测定吲哚美辛、盐酸-乙醇致大鼠胃黏膜损伤的溃疡指数,评价摩罗丹（浓缩丸）对胃黏膜损伤的保护作用;通过小鼠腹腔毛细血管通透性实验,评价摩罗丹（浓缩丸）的抗炎作用;通过醋酸致小鼠扭体实验,评价摩罗丹（浓缩丸）的镇痛作用;通过测定小鼠出血、凝血时间,评价摩罗丹（浓缩丸）的止血作用。结果：吲哚美辛致大鼠胃黏膜损伤模型中,摩罗丹（浓缩丸）高剂量、中剂量、低剂量组和阳性药枸橼酸铋钾颗粒组的溃疡指数与模型对照组比较明显降低（P<0.01）;盐酸-乙醇致大鼠胃黏膜损伤模型中,摩罗丹（浓缩丸）高剂量、中剂量组和阳性药枸橼酸铋钾颗粒组的溃疡指数与模型对照组比较明显降低（P<0.05）;摩罗丹（浓缩丸）高剂量、中剂量组和阳性药云南白药胶囊组出血时间明显低于空白对照组（P<0.05）;摩罗丹（浓缩丸）高剂量组和阳性药云南白药胶囊组凝血时间与空白对照组比较明显降低（P<0.05）;醋酸致小鼠扭体反应实验中,摩罗丹（浓缩丸）高剂量组和阳性药布洛芬颗粒组的扭体次数明显低于模型对照组（P<0.05）;小鼠腹腔毛细血管通透性实验中,摩罗丹（浓缩丸）高剂量、中剂量组和阳性药布洛芬颗粒组的腹腔液吸光度明显低于模型对照组（P<0.05）。结论：摩罗丹（浓缩丸）对吲哚美辛等非甾体抗炎药、乙醇刺激引起的胃黏膜破损、溃疡具有治疗作用,对慢性非萎缩性胃炎中常见的糜烂出血、疼痛、炎症也同样具有治疗作用,并能有效保护胃黏膜。