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1.
[目的]研究小茴香挥发油对在体小鼠胃肠运动及对家兔大鼠离体肠管收缩活动的影响。[方法] 1)小鼠在体实验:腹腔注射硫酸阿托品建立小鼠胃肠运动功能障碍模型,甲硫酸新斯的明腹腔注射建立小鼠胃排空和肠推进亢进模型,营养性半固体糊灌胃法观察小茴香挥发油对正常小鼠及上述两种模型小鼠小肠推进率和胃排空率的变化。2)离体肠道平滑肌实验:使用PowerLab15T生物信号采集系统观察小茴香挥发油对大鼠和家兔离体肠管运动的影响。[结果]小茴香挥发油不同浓度可以抑制正常小鼠的肠推进及甲硫酸新斯的明所致的肠推进亢进(P0.05);但对甲硫酸阿托品所致的小鼠胃肠运动抑制模型作用不明显,小茴香挥发油对大鼠和家兔离体小肠运动的频率和张力有极显著的抑制作用(P0.01)。[结论]小茴香挥发油具有抑制小鼠胃肠动力的作用,其作用机制可能是通过拮抗乙酰胆碱的作用,从而缓解胃肠道痉挛,为今后小茴香的制剂开发及临床用药的提供理论依据。  相似文献   

2.
本文报告了理中汤对小鼠小肠推进运动和离体家免小肠运动的影响。实验结果表明:理中汤能明显抑制正常小鼠及大黄脾虚小鼠、新斯的明负荷小鼠的小肠推进运动;对家兔离体肠管运动的影响表现为使离体十二指肠的自发活动受到抑制,能拮抗乙酰胆碱、氯化钡引起的肠管强直性收缩;但对肾上腺素所致的肠管运动抑制无明显作用。结果提示理中汤改善胃肠运动的功能与其抗乙酰胆碱、抑制交感神经兴奋以及对平滑肌的直接作用有关。  相似文献   

3.
和胃口服液对胃肠运动功能影响的研究   总被引:4,自引:2,他引:2  
研究和胃口服对动物胃肠运动功能的影响。方法采用小鼠整体胃排空试验,小肠推进试验和家兔离体十二指肠运动结构测定和胃口服液对正常小鼠胃排空,小肠推进运动及家兔离体肠管自发肠活动,药物引起的肠收缩和肠抑制的影响。  相似文献   

4.
[目的]观察鸡腿菇提取液对小鼠小肠推进和胃排空功能的影响.[方法]选用昆明种小鼠,采用炭末小肠推进试验和改良酚红含量测定法,分别观察不同剂量鸡腿菇对正常、新斯的明负荷、肾上腺素负荷小鼠小肠推动和胃排空功能的影响.[结果]鸡腿菇提取液可显著促进正常小鼠的胃肠运动(3.0、6.0、9.0、12.0 g/kg剂量组)和胃排空功能(1.5、3.0、6.0、9.0、12.0 g/kg剂量组),与正常对照组比较均有显著性差异(P<0.05或P<0.01);对新斯的明负荷所致的小鼠小肠推进亢进(6.0 g/kg剂量)、胃排空亢进(3.0 g/kg剂量)均有显著的拮抗作用(P<0.05);对肾上腺素负荷所致的小肠推进抑制(6.0 g/kg剂量)、胃排空抑制(3.0 g/kg剂量)具有显著的拮抗作用(P<0.05或P<0.01).[结论]鸡腿菇对胃肠运动功能具有双向调节作用:运动功能正常或低下时有促进作用,而运动功能亢进时则有抑制作用.  相似文献   

5.
目的:考察酸甘化阴代表方剂人参乌梅汤对小鼠不同功能状态胃肠蠕动的抑制作用,为该法临床治疗小儿腹泻病提供实验依据.方法:采用正常小鼠、番泻叶致急性腹泻小鼠和新斯的明致小肠运动亢进小鼠,观察小鼠胃排空、炭末胃肠推进和4h内总稀便数等指标.结果:人参乌梅汤能明显抑制番泻叶所致小鼠急性腹泻及小鼠胃排空运动,正常小鼠小肠的推进运...  相似文献   

6.
“胀痛消”由左金丸加味组成,临床用于胃肠道疾病取得了较好疗效。本文以胃排空、小肠推进及离体肠管解痉试验观察胀痛消胶囊的胃肠道药理作用。动物雌雄兼用,随机分组,分别观察该药对正常及胃复安、阿托品负荷小鼠胃排空的影响和对正常及新斯的明、肾上腺素负荷小鼠小肠推进的影响,同时观察该药对家兔离体十二指肠自发活动的作用及拮抗氯化乙酰胆碱、氯化钡、组织胺所致离体回肠痉挛的作用。研究结果表明该药明显抑制正常小鼠的胃排空及胃复安所致胃排空加快,对阿托品所致胃排空减慢有协同作用;明显抑制正常小鼠小肠推进,对新斯的明所致小鼠小肠推进加快有明显抑制作用,但对肾上腺素所致小鼠小肠推进减慢没有明显影响;抑制家兔离体十二指肠自发活动以及拮抗氯化乙酰胆碱、氯化钡、组织胺所致家兔回肠痉挛性收缩。以上研究结果提示胀痛消具有调整胃肠运动亢进及缓解胃肠平滑肌痉挛的药理作用。  相似文献   

7.
为研究胃肠康冲剂对胃肠运动及胃液分泌功能的影响,以不同剂量的胃肠康冲剂对正常小气和新斯的明负荷小鼠分别进行胃排空和小肠推进试验,采用兔离体肠管对胃肠康冲剂进行肠运动试验,以不同剂量的胃肠康冲剂对大鼠进行胃液分泌试验.结果显示胃肠康冲剂具有明显的抑制胃肠运动作用,同时能够置著增加胃液总酸度和胃蛋白酶活性。  相似文献   

8.
胃肠宁的药效学研究   总被引:1,自引:0,他引:1  
目的:探讨胃肠宁治疗消化道溃疡、胃炎的作用机理及安全性,为临床应用提供实验依据.方法:检测离体兔肠运动的方法,观察胃肠宁对新西兰兔离体肠管自发运动和痉挛收缩的影响;选用NIH小鼠进行扭体法和热板法及镇痛实验和急性毒性实验.结果:胃肠宁对兔离体肠管自发运动有抑制作用,并能拮抗乙酰胆碱、氯化钡、磷酸组胺所致动物离体肠管痉挛性收缩,并且随着剂量加大而作用加强;该药对醋酸刺激和热板法所致疼痛有明显的抑制作用,并且随着剂量加大而作用加强;小鼠的急性毒性试验表明,其最大耐受量为48g生药/kg,相当于临床用量的200倍.结果:胃肠宁有解除肠道痉挛及一定的镇痛作用.  相似文献   

9.
目的:探讨自拟方宝宁丸对胃肠运动功能的影响。方法:通过小鼠炭末推进实验观察宝宁丸煎液对正常、亢进及抑制状态下胃肠运动的影响,并通过在体胃肠平滑肌实验观察宝宁丸对家兔空肠运动的影响。结果:宝宁丸煎液高剂量组能明显促进正常小鼠胃肠运动及抑制亢进状态的小鼠胃肠运动,中、高剂量组能明显改善抑制状态的小鼠胃肠运动,并能显著促进正常家兔在体空肠平滑肌的活动。结论:宝宁丸对正常和抑制状态的胃肠运动有促进作用,对亢进状态的胃肠运动有抑制作用。  相似文献   

10.
目的:考察胃舒汤对大鼠及小鼠胃肠运动的影响。方法:以小鼠胃排空、肠推进及大鼠离体小肠收缩性为指标,观察胃舒汤对正常小鼠及新斯的明致亢进小鼠胃排空及肠推进运动的影响,并测定胃舒汤对大鼠离体小肠收缩性的影响。结果:胃舒汤能明显降低亢进小鼠胃排空及肠推进,对大鼠离体小肠收缩性也具有明显抑制作用。结论:胃舒汤对大鼠及小鼠胃肠运动具有明显抑制作用。  相似文献   

11.
Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P <0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.  相似文献   

12.
Objective: To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods: SD rats served as both donors and recipients. 4℃ sodium lactate Ringer's was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava (IVC) inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results: Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion: This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.  相似文献   

13.
Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P< 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P< 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.  相似文献   

14.
目的:评价使用安心颗粒对急诊经皮冠状动脉介入术(PPCI)术后生活质量的影响.方法:将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组(术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次)和对照组(仅接受基础药物治疗).所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表(MIDAS)、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果:入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异(P>0.05);出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低(P<0.05);组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低(P<0.05).两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血(P>0.05).两组发生轻度血小板减少症的患者数比较无差异(P>0.05).结论:PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.  相似文献   

15.
Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.  相似文献   

16.
Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.  相似文献   

17.
A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care(~'4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.  相似文献   

18.
Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.  相似文献   

19.
Journal of Nanjing Medical University (English Edition) JNMU, sponsored by Nanjing Medical University, was established in 1987. It is a bimonthly comprehensive English medical journal published locally and abroad.Since 2007, Journal of Nanjing Medical University (English Edition )was granted Elsevier the full publishing and distribution rights worldwide for the Electronic Edition, excluding the People's Republic of China.  相似文献   

20.
Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P<0.01);the MAP decreased(P<0.01)and the HR increased drastically(P<0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.  相似文献   

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