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目的:研究沉香化气丸抗实验性胃溃疡的药效及镇痛作用。方法:采用大鼠水浸应激性、醋酸刺激性、幽门结扎性胃溃疡模型及小鼠利血平和无水乙醇诱发胃溃疡等实验方法,观察沉化丸抗胃溃疡的作用及其对胃液分泌、胃酸含量、胃蛋白梅活性的影响,以小鼠热板法及醋酸扭体法检测普胃丸的镇痛作用。结果:沉化丸能明显降低胃溃疡指数、抑制胃液分泌及降低胃蛋白酶活性,并能延长小鼠热刺激的痛阈时间,减少醋酸致痛小鼠扭体次数。结论:沉化丸具有明显的抗实验性胃溃疡作用,该作用与其抑制胃液、胃蛋白酶分泌,降低胃蛋白酶活性及镇痛作用有关。 相似文献
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目的 研究老鹳草提取物抗实验性胃溃疡活性及机制。方法 采用大鼠幽门结扎型、醋酸灼伤型、乙醇诱导型及吲哚镁辛药物诱导型胃溃疡模型,观察老鹳草提取物对胃溃疡抑制作用。结果 老鹳草提取物可显著降低大鼠幽门结扎型胃溃疡、乙酸灼伤型胃溃疡、乙醇及吲哚镁辛诱导胃溃疡模型溃疡指数。老鹳草提取物能抑制幽门结扎型胃溃疡大鼠胃酸分泌、抑制胃蛋白酶活性。结论 老鹳草提取物具有明显抗实验性胃溃疡作用,其作用机制可能与其抑制胃酸和胃蛋白酶活性有关。 相似文献
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目的探讨及术颗粒对大鼠实验性胃溃疡的作用机制。方法采用冷束缚法及阿司匹林建立大鼠胃溃疡模型;检测溃疡指数、胃液游离酸和总酸浓度以及胃蛋白酶活性;观察及术颗粒体外抑制幽门螺杆菌实验的影响。结果与对照组比较,及术颗粒大、中、小剂量组均能降低溃疡指数,提高溃疡抑制率;抑制大鼠胃液分泌,降低胃游离酸、总酸和胃蛋白酶排出量,及术颗粒剂量与溃疡指数(r=-0.6 841)、胃酸量(r=-0.7 173)之间呈负相关关系;及术颗粒大剂量组具有体外抑制幽门螺杆菌的作用。结论及术颗粒抗胃溃疡的作用机理可能是抑制胃液分泌,降低胃酸和胃蛋白酶排出量及抑制幽门螺杆菌。 相似文献
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目的 观察健胃愈疡片对实验性胃溃疡的影响。方法 采用大鼠幽门结扎胃溃疡模型、醋酸烧灼胃溃疡模型和无水乙醇致大鼠胃损伤模型研究健胃愈疡片对大鼠胃溃疡的防治作用及对胃液、胃酸分泌、胃蛋白酶活性的影响;采用阿托品致小鼠小肠运动抑制模型及醋酸诱发疼痛模型,测量小鼠碳末推进率以及扭体次数的变化。结果 健胃愈疡片对大鼠幽门结扎所致的溃疡面积有显著抑制作用;抑制大鼠胃酸的分泌及胃蛋白酶的活性;促进大鼠醋酸烧灼溃疡愈合;降低无水乙醇导致的胃黏膜损伤;改善阿托品所致的小鼠小肠运动抑制,降低醋酸诱发的小鼠扭体次数。结论 健胃愈疡片对实验性胃溃疡具有显著的预防和治疗作用。 相似文献
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目的:研究胃灵片对大鼠实验性胃溃疡与胃分泌的影响。方法:给大鼠连续灌服胃灵片(0.5~2.0g/kg.d)7天,观察2胃灵片对大鼠结扎幽 型溃疡的影响。对无水乙醇性胃粘膜损伤的保护作用,对胃酸分泌的影响。对大白鼠胃蛋白酶活性的影响。结果:能显著抑制结扎幽门型溃疡,抑制率为69.2~82.2%;对无水乙醇性胃粘膜损伤的保护作用;能促进胃酸的分泌和抑制胃蛋白酶活性。结论:胃灵片有抗胃溃疡的作用,这一作用可能与抑制胃蛋白酶活性有关。 相似文献
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丹参饮对实验性胃溃疡的防治作用 总被引:7,自引:0,他引:7
目的:观察丹参饮对实验性胃溃疡的影响.方法:采用小鼠水浸-束缚应激性胃溃疡模型、大鼠乙酸烧灼性胃溃疡模型和大鼠幽门结扎性胃溃疡模型进行实验,并检测大鼠胃液酸度、胃蛋白酶活性和胃壁结合黏液的含量.结果:丹参饮能够减轻小鼠水浸-束缚应激性胃黏膜损伤,5.0、10.0 g/kg剂量组作用明显优于生理盐水对照组(P <0.05或P <0.01);显著促进大鼠乙酸烧灼性溃疡愈合(P <0.01),增加其胃壁结合黏液的含量(P <0.01);还能够抑制幽门结扎所致胃溃疡的形成,但对胃酸分泌、胃蛋白酶活性无明显影响.结论:丹参饮具有较好的抗溃疡作用,其机制可能与增强胃黏膜防御能力有关. 相似文献
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目的 复制大鼠实验性胃溃疡模型 ,研究胃舒康胶囊对大鼠实验性胃溃疡的治疗作用并探讨其作用机制。方法 ①将胃溃疡模型大鼠分为对照组和实验组。实验组以胃舒康混悬液 ( 7.5g/kg、3 .75g/kg)灌胃 ,对照组分别以西咪替丁 ( 1 0 0 0mg/kg)和生理盐水灌胃 ,各组均每天 1次。连续 1 2d后解剖取胃 ,观察胃舒康胶囊对胃溃疡的治疗作用。②大鼠 5 0只 ,分组、用药同前 ,每天 1次 ,共 7d。末次灌胃后结扎幽门 ,术后 2h取胃收集胃液。结果 胃舒康混悬液对实验性胃溃疡有明显的抑制作用 ;对胃液量及游离酸有抑制作用。结论 胃舒康胶囊对实验性胃溃疡有治疗作用 ,其治疗作用可能与抑制胃酸分泌、降低胃酸度的作用有关。 相似文献
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复方溃疡灵治疗胃溃疡的实验研究 总被引:2,自引:2,他引:0
目的 探讨复方溃疡灵治疗胃溃疡的疗效。方法 采用大鼠醋酸型胃溃疡模型和幽门结扎法造模,观察大鼠胃液量及总酸度、1h总酸排除量,采用Mett法测定胃蛋白酶含量,以溃疡最长径和最短径的均值表示胃溃疡指数,采用放免法测定胃泌素及肿瘤坏死因子含量。结果 复方溃疡灵能降低胃液总酸度,抑制胃液的分泌,降低溃疡指数,抑制胃蛋白酶的活性,升高血中肿瘤坏死因子的作用。但对胃液pH值、血清胃泌素升高的作用与空白组相比较无显著差异;结论 复方溃疡灵能增强胃粘膜分泌胃液的功能,降低胃酸度并抑制胃蛋白酶活性。 相似文献
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作者对256例进行期胃癌的浆膜改变与病期、生物学行为的关系及临床意义进行探讨。结果表明:Ps(-)胃癌多为I、Ⅱ期的限局型癌,分化程度高,淋巴管癌栓、淋巴结转移率及腹腔脱落癌细胞的阳性率低。Ps(+)胃癌多为Ⅲ、Ⅳ期的浸润型癌,弥漫性生长,分化不良,淋巴管癌栓、淋巴结转移率及脱落癌细胞的检出率较Ps(-)胃癌显著增加。Ps(+)较Ps(-)癌根治术后5年自下而上率明显为低,主要与手术后腹膜转移复发 相似文献
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本实验用麻醉大鼠及带血管灌流的离体大鼠胃,对胃扩张引起胃内分泌的变化及其机制进行了研究。结果显示:①在体实验部分:用10mlNS扩张胃,血浆胃泌素水平明显升高,生长抑素无明显变化;切断双侧颈迷走神经,则血浆胃泌素水平降低,而生长抑素水平升高。②离体实验部分:扩张胃引起胃泌素分泌减少,生长抑素分泌增加;血管灌注阿托品或河豚毒,使扩张引起的效应各受阻30%或50%左右,而VIP拮抗剂对其无明显作用。结论:整体情况下,胃扩张引起胃泌素分泌增加和生长抑素分泌抑制是通过迷走依赖的途径实现的,这一作用掩盖了胃内存在的抑制胃泌素、刺激生长抑素分泌的调节系统的效应;胆碱能及非胆碱能机制均涉及该调节中,但后者确切的本质尚有待进一步的研究。 相似文献
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目的:对胃癌患者可溶性白细胞介素2受体(sIL-2R)定量分析及病变部位黏膜微生物检查,探讨其病变局部免疫功能状态及其可能相关因素,为临床诊断胃癌提供依据.方法:收集91例胃病患者病变部位的胃液及胃黏膜活组织,进行微生物分离培养鉴定,胃液sIL-2R及微生物群的检测.结果:胃癌患者胃液sIL-2R水平非常显著高于对照组,胃液微生物群检出葡萄球菌、白色念珠菌、四联球菌、八迭球菌、不解乳真杆菌、产气真杆菌、产亚硝酸真杆菌等.结论:胃癌患者sIL-2R水平与胃部疾病的严重程度密切相关.并提示胃癌患者胃黏膜局部的T细胞免疫受阻,微生物检出率高使胃内氮亚硝基化合物(NOC)合成进一步增加,从而促进胃癌的发生. 相似文献
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胃起搏对胃动力紊乱模型犬胃排空的影响 总被引:4,自引:1,他引:3
目的 研究胃起搏对胃动力紊乱模型犬胃排空的影响。方法 采用双侧迷走神经干切断术联合应用胰高血糖素建立胃动力紊乱犬模型 ;采用放射性核素99Tcm 植酸钠标记的半固体试餐 ,单光子放射计算机断层显象术 (SPECT)检测胃半排空时间(GEt1 2 ) ;采用适应起搏参数从位表输入起搏信号以驱动胃电节律。结果 迷走神经干切除术后犬的GEt1 2 (79.42± 1.91)min较术前 (5 6.3 5± 2 .99)min ,(P <0 .0 0 1) ,明显延迟 ,但行胃起搏治疗后GEt1 2 (64 .94± 1.75 )min ,显著低于治疗前 (P <0 .0 0 1)。结论 采用适宜起搏参数进行胃起搏可加速胃排空 ,恢复或改变胃功能活动状态 相似文献
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Gastric rupture caused by acute gastric distention in non-neonatal children: clinical analysis of 3 cases 总被引:4,自引:0,他引:4
Objective To study gastric rupture, a progressive, rapid and high mortality condition, cau sed by acute gastric distention (GRAGD) and its appropriate diagnosis and treatment.
Methods The etiology, pathology, clinical manifestations and experiences in 3 children w ith GRAGD were reviewed.
Results Case 1: After diagnosising GRAGD and stabilizing her shock with massive fluid re placement, gastrostomy was performed. Her postoperative course was uneventful b ecause of fasting, sucti on, fluid infusion, correction of acidosis and supporting nutrition. Case 2: A fter diagnosising gastric distention which subsided with conservative therapy fo r 9 days, she suddenly had gastric rupture when she had not eaten for 6 days. She died of shock and had no chance for surgery. Case 3: The patient had sudden abdominal pain, distention and vomitting with severe shock for 4 days. Emergen cy surgery found gastric rupture and the method was the same as Case 1. The pat ient survived but has brain impairment. Case 1 and 3 showed multifocal transmur al necrosis.
Conclusions Symptoms like overeating, bulimia, changes in kind of food, X-ray showing large distended stomach and massive pneumoperitoneum were seen after gastric ruptur e and can help to diagnose this condition. Clinical course of gastric distentio n with toxic shock progresses rapidly, however subsequent gastric rupture exacer bates the shock and makes the treatment difficult treatment. It is extremely im portant that a laparotomy be performed at once after stabilizing shock with mass ive fluid replacement. Postoperative nutritional support and fluid replacement will increase survival. It is very important that when gastric distention disap pears after conservative therapy, the doctor should assess carefully whether the gastric wall recovery is under way by using effective methods of examination. 相似文献
Methods The etiology, pathology, clinical manifestations and experiences in 3 children w ith GRAGD were reviewed.
Results Case 1: After diagnosising GRAGD and stabilizing her shock with massive fluid re placement, gastrostomy was performed. Her postoperative course was uneventful b ecause of fasting, sucti on, fluid infusion, correction of acidosis and supporting nutrition. Case 2: A fter diagnosising gastric distention which subsided with conservative therapy fo r 9 days, she suddenly had gastric rupture when she had not eaten for 6 days. She died of shock and had no chance for surgery. Case 3: The patient had sudden abdominal pain, distention and vomitting with severe shock for 4 days. Emergen cy surgery found gastric rupture and the method was the same as Case 1. The pat ient survived but has brain impairment. Case 1 and 3 showed multifocal transmur al necrosis.
Conclusions Symptoms like overeating, bulimia, changes in kind of food, X-ray showing large distended stomach and massive pneumoperitoneum were seen after gastric ruptur e and can help to diagnose this condition. Clinical course of gastric distentio n with toxic shock progresses rapidly, however subsequent gastric rupture exacer bates the shock and makes the treatment difficult treatment. It is extremely im portant that a laparotomy be performed at once after stabilizing shock with mass ive fluid replacement. Postoperative nutritional support and fluid replacement will increase survival. It is very important that when gastric distention disap pears after conservative therapy, the doctor should assess carefully whether the gastric wall recovery is under way by using effective methods of examination. 相似文献
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Study on gastric empty disorder after the gastric ulcer healing and therapeutic effect of cisapride 总被引:1,自引:0,他引:1
Zou Kaifang Liu Shi Liu Jinsong Liu Yongge Hou Xiaohua Yi Cuiqiong 《华中科技大学学报(医学英德文版)》2000,20(1):57-58
Nonspecific symptoms of ulcer, such as epigastric bloating, early satiety, nausea and anorexia, exist in some patients with gastric ulcer healing, the cause is still nuclear. Gastric emptying inthe patients with continual or recurrent dyspepsiasymptoms after gastric ulcer healing was evaluatedby using real--time ultrasonography. The patientswere treated by several doses of cisapride. Theaims of this study were to evaluate the gastricemptying disorders after gastric ulcer healing andthe therape… 相似文献
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胃溃疡患者胃粘膜血管内皮生长因子表达水平研究 总被引:1,自引:0,他引:1
目的探讨胃溃疡患者胃粘膜和血清中血管内皮生长因子(VEGF)的变化及作用。方法选择在本院进行内镜检查确诊的胃溃疡患者120例,其中活动期GA组42例,愈合期GH组38例和瘢痕期GS组40例。正常对照组50例。采用SPSS 11.0统计学软件进行数据处理。结果正常组织血清中的VEGF水平与溃疡活动期、愈合期和瘢痕期水平相比,差异有统计学意义(P<0.05)。另外,溃疡瘢痕期血清中的VEGF、组织中的VEGF阳性和血清中的VEGF阳性水平与溃疡活动期相比,差异有统计学意义(P<0.05)。结论 VEGF在胃溃疡活动期、愈合期、瘢痕期逐渐下降但高于正常组织,为从VEGF角度干预溃疡愈合,提高溃疡愈合质量提供了科学依据。 相似文献
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目的: 探讨穴注黄芪、当归注射液对大鼠慢性萎缩性胃炎(CAG)胃粘膜上皮细胞超微结构的影响。方法: 采用N-甲基-N-硝基亚硝基胍(MNNG)诱发大鼠CAG.随机将70只大鼠分为正常组,模型1组(40μg/mLMNNG造模)及模型2组(60μg/mLMNNG造模),不作任何治疗。穴注1组(40μg/mLMNNG造模+穴注)与穴注2组(60μg/mLMNNG造模+穴注),造模10周开始以黄芪、当归注射液等份混合注入足三里穴。31周时,进行胃粘膜常规病理及胃粘膜上皮细胞主要细胞器的定量分析。结果: 1)随造模浓度的增加,胃粘膜损伤及胃粘膜萎缩程度等均相应加重;胃粘膜上皮细胞线粒体退变,粘原颗粒减少,细胞间隙增宽(均P<0.05).2)穴注法可明显改善胃粘膜上皮细胞功能,缩小上皮细胞间隙,保护胃粘膜屏障而逆转CAG(均P<0.05).结论: 胃粘膜上皮细胞的损伤与胃壁屏障结构破坏,胃粘膜萎缩发生、进展至癌变密切相关;穴注法可通过改善上皮细胞的结构与功能,保护胃壁屏障而有效防治CAG。 相似文献