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Ability of lactulose breath test results to accurately identify colorectal polyps through the measurement of small intestine bacterial overgrowth 被引量:1
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作者 Lan Li Xue-Yuan Zhang +5 位作者 Jin-Sheng Yu Hui-Min Zhou Yan Qin Wen-Rui Xie Wen-Jing Ding Xing-Xiang He 《World Journal of Gastrointestinal Surgery》 SCIE 2023年第6期1138-1148,共11页
BACKGROUND While colorectal polyps are not cancerous,some types of polyps,known as adenomas,can develop into colorectal cancer over time.Polyps can often be found and removed by colonoscopy;however,this is an invasive... BACKGROUND While colorectal polyps are not cancerous,some types of polyps,known as adenomas,can develop into colorectal cancer over time.Polyps can often be found and removed by colonoscopy;however,this is an invasive and expensive test.Thus,there is a need for new methods of screening patients at high risk of developing polyps.AIM To identify a potential association between colorectal polyps and small intestine bacteria overgrowth(SIBO)or other relevant factors in a patient cohort with lactulose breath test(LBT)results.METHODS A total of 382 patients who had received an LBT were classified into polyp and non-polyp groups that were confirmed by colonoscopy and pathology.SIBO was diagnosed by measuring LBTderived hydrogen(H)and methane(M)levels according to 2017 North American Consensus recommendations.Logistic regression was used to assess the ability of LBT to predict colorectal polyps.Intestinal barrier function damage(IBFD)was determined by blood assays.RESULTS H and M levels revealed that the prevalence of SIBO was significantly higher in the polyp group than in the non-polyp group(41%vs 23%,P<0.01;71%vs 59%,P<0.05,respectively).Within 90 min of lactulose ingestion,the peak H values in the adenomatous and inflammatory/hyperplastic polyp patients were significantly higher than those in the non-polyp group(P<0.01,and P=0.03,respectively).In 227 patients with SIBO defined by combining H and M values,the rate of IBFD determined by blood lipopolysaccharide levels was significantly higher among patients with polyps than those without(15%vs 5%,P<0.05).In regression analysis with age and gender adjustment,colorectal polyps were most accurately predicted with models using M peak values or combined H and M values limited by North American Consensus recommendations for SIBO.These models had a sensitivity of≥0.67,a specificity of≥0.64,and an accuracy of≥0.66.CONCLUSION The current study made key associations among colorectal polyps,SIBO,and IBFD and demonstrated that LBT has moderate potential as an alternative noninvasive screening tool for colorectal polyps. 展开更多
关键词 Lactulose breath test Colorectal polyp small intestine bacteria overgrowth intestinal barrier function Retrospective study
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Effect of bowel rehabilitative therapy on structural adaptation of remnant small intestine: animal experiment 被引量:14
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作者 Xin Zhou1 Yuan Xin Li2 +1 位作者 Ning Li2 Jie Shou Li2 1Department of General Surgery, Medical School, Nanjing University, Nanjing 210093. Jiangsu Province. China2Research Institute of General Hospital. Chinese PLA General Hospital of Nanjing Military Area, Nanjing 210002. Jiangsu Province. China 《World Journal of Gastroenterology》 SCIE CAS CSCD 2001年第1期66-73,共8页
AIM: To investigate the individual and the combined effects of glutamine, dietary fiber, and growth hormone on the structural adaptation of the remnant small bowel. METHODS: Forty-two adult male Sprague-Dawley rats un... AIM: To investigate the individual and the combined effects of glutamine, dietary fiber, and growth hormone on the structural adaptation of the remnant small bowel. METHODS: Forty-two adult male Sprague-Dawley rats underwent 85% mid-small bowel resection and received total parenteral nutrition (TPN) support during the first three postoperational days.From the 4th postoperational day, animals were randomly assigned to receive 7 different treatments for 8 days: TPNcon group, receiving TPN and enteral 20 g x L(-1) glycine perfusion; TPN+Gln group, receiving TPN and enteral 20 g x L(-1) glutamine perfusion; ENcon group, receiving enteral nutrition (EN) fortified with 20 g x L(-1) glycine; EN+Gln group, enteral nutrition fortified with 20 g x L(-1) glutamine; EN+Fib group, enteral nutrition and 2 g x d(-1) oral soybean fiber; EN+GH group, enteral nutrition and subcutaneous growth hormone (GH) (0.3 IU) injection twice daily; and ENint group, glutamine-enriched EN, oral soybean fiber, and subcutaneous GH injection. RESULTS: Enteral glutamine perfusion during TPN increased the small intestinal villus height (jejunal villus height 250 microm +/- 29 microm in TPNcon vs 330 microm +/- 54 microm in TPN+Gln, ileal villus height 260 microm +/- 28 microm in TPNcon vs 330 microm +/- 22 microm in TPN+Gln, P【0.05) and mucosa thickness (jejunal mucosa thickness 360 microm +/- 32 microm in TPNcon vs 460 microm +/- 65 microm in TPN+Gln, ileal mucosa thickness 400 microm +/- 25 microm in TPNcon vs 490 microm +/- 11 microm in TPN+Gln,P【 0.05) in comparison with the TPNcon group. Either fiber supplementation or GH administration improved body mass gain (end body weight 270 g +/- 3.6g in EN+Fib, 265.7 g +/- 3.3 g in EN+GH, vs 257 g +/- 3.3 g in ENcon, P【 0.05), elevated plasma insulin-like growth factor (IGF-I) level (880 microg x L(-1). 52 microg x L-(-1) in EN+Fib,1200 microg x L(-1). 96 microg x L-(-1) in EN +/- GH, vs 620 microg x L(-1).43 microg x L-(-1) in ENcon, P【 0.05), and increased the villus height (jejunum 560 microm +/- 44 microm in EN +/- Fib, 530 microm +/- 30 microm in EN +/- GH, vs 450 microm +/- 44 microm in ENcon, ileum 400 microm +/- 30 microm in EN+Fib, P【0.05) and the mucosa thickness (jejunum 740 microm +/- 66 microm in EN +/- Fib, 705 microm +/- 27 microm in EN +/- GH, vs 608 microm +/- 58 microm in ENcon, ileum 570 microm +/- 27 microm in EN +/- Fib, 560 microm +/- 56 microm in remnant jejunum and ileum. Glutamine-enriched EN produced little effect in body mass, plasma IGF-I level, and remnant small bowel mucosal structure. The ENint group had greater body mass (280 g +/- 2.2g), plasma IGF-I level (1450 microg x L(-1). 137 microg x L-(-1)), and villus height (jejunum 620 microm +/- 56 microm, ileum 450 microm +/- 31 microm) and mucosal thickness (jejunum 800 microm +/- 52 microm, ileum 633 microm +/- 33 microm) than those in ENcon, EN+Gln (jejunum villus height and mucosa thickness 450 microm +/- 47 microm and 610 +/- 63 microm, ileum villus height and mucosa thickness 330 microm +/- 39 microm and 500 microm +/- 52 microm), EN+GH groups (P【0.05), and than those in EN+Fib group although no statistical significance was attained. CONCLUSION: Both dietary fiber and GH when used separately can enhance the postresectional small bowel structural adaptation. Simultaneous use of these two gut-trophic factors can produce synergistic effects on small bowel structural adaptation. Enteral glutamine perfusion is beneficial in preserving small bowel mucosal structure during TPN, but has little beneficial effect during EN. 展开更多
关键词 Parenteral Nutrition Total Adaptation Physiological Animals Body Weight Dietary Fiber GLUTAMINE Glycine Growth Hormone Insulin-Like Growth Factor I intestinal Mucosa intestine small Male RATS Rats Sprague-Dawley Recovery of function Research Support Non-U.S. Gov't Short Bowel Syndrome
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Small intestinal submucosa improves islet survival and function during in vitro culture 被引量:3
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作者 Xiao-Hui Tian Wu-Jun Xue Xiao-Ming Ding Xin-Lu Pang Yan Teng Pu-Xun Tian Xin-Shun Feng 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第46期7378-7383,共6页
AIM: To evaluate the recovery and function of isolated rat pancreatic islets during in vitro culture with small intestinal submucosa (SIS). METHODS: Pancreatic islets were isolated from Wistar rats by standard sur... AIM: To evaluate the recovery and function of isolated rat pancreatic islets during in vitro culture with small intestinal submucosa (SIS). METHODS: Pancreatic islets were isolated from Wistar rats by standard surgical procurement followed by intraductal collagenase distension, mechanical dissociation and Euroficoll purification. Purified islets were cultured in plates coated with multilayer SIS (SIS-treated group) or without multilayer SIS (standard cultured group) for 7 and 14 d in standard islet culture media of RPMI 1640. After isolation and culture, islets from both experimental groups were stained with dithizone and counted. Recovery of islets was determined by the ratio of counts after the culture to the yield of islets immediately following islet isolation. Viability of islets after the culture was assessed by the glucose challenge best with low (2.7 mmol/L) and high glucose (16.7 mmol/L) solution supplemented with 50 mmol/L 3-isobutyl-1- methylxanthine (IBMX) solution. Apoptosis of islet cells after the culture was measured by relative quantification of histone-complexed DNA fragments using ELISA. RESULTS: After 7 or 14 d of in vitro tissue culture, the recovery of islets in SIS-treated group was significantly higher than that cultured in plates without SIS coating. The recovery of islets in SIS-treated group was about twice more than that of in the control group. In SIS treated group, there was no significant difference in the recovery of islets between short- and long-term periods of culture (95.8±1.0% vs 90.8±1.5%, P〉0.05). When incubated with high glucose (16.7 mmol/L) solution, insulin secretion in SIS-treated group showed a higher increase than that in control group after 14 d of culture (20.7±1.1 mU/L vs 11.8±1.1 mU/L, P〈0.05). When islets were placed in high glucose solution containing IBMX, stimulated insulin secretion was higher in SlS-treated group than in control group. Calculated stimulation index of SlS-treated group was about 23 times of control group. In addition, the stimulation index of SlS-treated group remained constant regardless of short- and long- term periods of culture (9.5±0.2 vs 10.2±1.2, P〉0.05). Much less apoptosis of islet cells occurred in SlS-treated group than in control group after the culture. CONCLUSION: Co-culture of isolated rat islets with native sheet-like SIS might build an extracellular matrix for islets and provide possible biotrophic and growth factors that promote the recovery and subsequent function of islets. 展开更多
关键词 Islet culture Islet survival Islet function small intestinal submucosa
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Changes of the glutathione redox system during the weaning transition in piglets, in relation to small intestinal morphology and barrier function 被引量:2
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作者 Jeroen Degroote Hans Vergauwen +3 位作者 Wei Wang Chris Van Ginneken Stefaan De Smet Joris Michiels 《Journal of Animal Science and Biotechnology》 SCIE CAS CSCD 2020年第4期993-1008,共16页
Background: Weaning is known to result in barrier dysfunction and villus atrophy in the immediate post-weaning phase, and the magnitude of these responses is hypothesized to correlate with changes in the glutathione(G... Background: Weaning is known to result in barrier dysfunction and villus atrophy in the immediate post-weaning phase, and the magnitude of these responses is hypothesized to correlate with changes in the glutathione(GSH)redox system. Therefore, these parameters were simultaneously measured throughout the weaning phase, in piglets differing in birth weight category and weaning age, as these pre-weaning factors are important determinants for the weaning transition. Low birth weight(LBW) and normal birth weight(NBW) littermates were assigned to one of three weaning treatments;i.e. weaning at 3 weeks of age(3 w), weaning at 4 weeks of age(4 w) and removal from the sow at 3 d of age and fed a milk replacer until weaning at 3 weeks of age(3 d3 w). For each of these treatments, six LBW and six NBW piglets were euthanized at 0, 2, 5, 12 or 28 d post-weaning piglets, adding up 180 piglets.Results: Weaning increased the glutathione peroxidase activity on d 5 post-weaning in plasma, and duodenal and jejunal mucosa. Small intestinal glutathione-S-transferase activity gradually increased until d 12 post-weaning, and this was combined with a progressive rise of mucosal GSH up till d 12 post-weaning. Oxidation of the GSH redox status(GSH/GSSG Eh) was only observed in the small intestinal mucosa of 3 d3 w weaned piglets at d 5 postweaning. These piglets also demonstrated increased fluorescein isothiocyanate dextran(FD4) and horseradish peroxidase fluxes in the duodenum and distal jejunum during the experiment, and specifically demonstrated increased FD4 fluxes at d 2 to d 5 post-weaning. On the other hand, profound villus atrophy was observed during the weaning transition for all weaning treatments. Finally, LBW and NBW piglets did not demonstrate notable differences in GSH redox status, small intestinal barrier function and histo-morphology throughout the experiment.Conclusion: Although moderate changes in the GSH redox system were observed upon weaning, the GSH redox status remained at a steady state level in 3 w and 4 w weaned piglets and was therefore not associated with weaning induced villus atrophy. Conversely, 3 d3 w weaned piglets demonstrated GSH redox imbalance in the small intestinal mucosa, and this co-occurred with a temporal malfunction of their intestinal barrier function. 展开更多
关键词 Barrier function GLUTATHIONE Oxidative stress Redox status small intestine Weaned piglet
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Effect of small intestinal submucosa on islet recovery and function in vitro culture
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《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2005年第4期524-529,共6页
BACKGROUND: The ability to maintain isolated human islet preparation in tissue culture has recently been adopted by most islet transplant centers to improve the safety and practicality of islet transplantation. Howeve... BACKGROUND: The ability to maintain isolated human islet preparation in tissue culture has recently been adopted by most islet transplant centers to improve the safety and practicality of islet transplantation. However, maintaining islet viability and recovery remains a challenge in clinical setting. Extracellular matrix (ECM) is one of the most important components of islet microenvironment. The reconstruction of the cell-matrix relationship seems to be effective in improving the loss of differentiated islet structure and function. Small intestinal submucosa ( SIS ) , a naturally occurring ECM, has been investigated to be able to promote wound healing, tissue remodeling, and cell growth. The purpose of this study was to evaluate the recovery and function of isolated rat pancreatic islets after in vitro culture with SIS. METHODS: Pancreatic islets were isolated from Wistar rats by using standard surgical procurement followed by intra-ductal collagenase distension, mechanical dissociation, and EuroFicoll purification. Groups of purified islets were cultured in plates which were coated with multilayer SIS (SIS-treated group) or without ( standard cultured group) for 7 days and 14 days in standard islet culture conditions of RP-MI 1640 tissue culture media in humidified atmosphere containing 95% air and 5% CO2 at 37 ℃. The mean recovery of islets after the culture period was determined by sizing duplicate counts of a known volume and their viability was assessed by static incubation with low glucose (2.7 mmol) , high glucose (16.7 mmol) and high glucose solution supplemented with 50 μm 3-isobutyl-1-methylxanthine (IB-MX) solution. RESULTS: After 7 days and 14 days of in vitro tissue culture, the SIS-treated group showed a significantly higher recovery compared with those cultured under standard conditions. The recovery in the SIS-treated group was about two times of the control group cultured in standard conditions after 14 days culture. In the SIS-treated group, there was no statistically difference between the short and long periods of culture ( 95. 8 ± 1.0% vs. 90. 8±1. 5% , P 】 0.05). During incubation in high glucose (16.7 mmol) solution, there was a 2-3 fold increase in insulin secretion from both groups, but the SIS-treated group showed a higher increase than the standard cultured group after 14-day culture (20.7 ±1.1 mU/L vs. 11. 8 ±1.1 mU/L, P 【 0. 05). When islets were placed in the high glucose solution supplemented with IBMX, the stimulated insulin response in the SIS-treated group was higher than that in the standard cultured group in spite of the duration of the culture. The stimulation index of the SIS-treated group was about 2-3 times of the standard cultured group. In addition , after a long period of culture, the stimulation index of the SIS-treated group was statistically equivalent with that of the short period of culture (9.5 ±0.2 vs. 10.2 ±1.2, P】0.05). CONCLUSIONS: The co-culture of isolated rat islets with native sheet-like SIS can provide an excellent extracellular matrix, possible biotrophic and growth factors that promote the recovery and subsequent function of islets after in vitro tissue culture. In view of results of this study and rapid degradation of SIS in vitro, future studies will investigate the extended duration of culture and the effect of SIS on islets in vitro. 展开更多
关键词 ISLET CULTURE ISLET RECOVERY ISLET function small intestinAL SUBMUCOSA
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六磨汤联合芒硝外敷对术后早期炎性肠梗阻患者肠道屏障功能及血清血管活性肠肽水平的影响
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作者 石鹏 王翠敏 张宏昭 《中国中西医结合外科杂志》 CAS 2024年第4期476-480,共5页
目的:探讨六磨汤联合芒硝外敷对术后早期炎性肠梗阻(EPISBO)患者肠道屏障功能及血清血管活性肠肽(VIP)水平的影响。方法:选取2021年11月—2022年11月我院收治的符合标准的98例EPISBO患者,采用随机数字表法分为对照组(n=49)及研究组(n=49... 目的:探讨六磨汤联合芒硝外敷对术后早期炎性肠梗阻(EPISBO)患者肠道屏障功能及血清血管活性肠肽(VIP)水平的影响。方法:选取2021年11月—2022年11月我院收治的符合标准的98例EPISBO患者,采用随机数字表法分为对照组(n=49)及研究组(n=49)。对照组进行常规治疗,研究组在对照组的基础上给予六磨汤联合芒硝外敷治疗。比较两组临床疗效、治疗前后胃肠功能恢复时间、胃肠激素水平、血清炎症因子水平和不良反应发生率。结果:研究组总有效率高于对照组(91.84%vs 75.51%,P<0.05)。研究组腹部症状缓解时间、肠鸣音恢复时间以及肛门排气时间均低于对照组(6.37±0.97 vs 8.56±1.29,5.31±0.76 vs 7.16±0.93,6.37±1.09 vs 8.16±1.16,P<0.05)。治疗前,两组的血清VIP、胃动素(MOT)、胃泌素(GAS)水平无统计学差异(31.76±5.87 vs 31.08±5.63,187.29±26.39 vs 186.32±25.97,108.67±21.76 vs 111.62±26.89,P>0.05),治疗后,两组的血清VIP水平都有所降低,MOT、GAS水平都有所升高,相对而言,研究组的血清VIP水平降低更多,MOT、GAS水平升高更多(16.23±3.66 vs 20.75±4.37,289.67±38.52 vs 231.56±31.26,179.65±39.55 vs 142.34±31.76,P<0.05)。治疗前,两组的血清肿瘤坏死因子-α(TNF-α)、C反应蛋白(CRP)、白细胞介素-6(IL-6)水平无差异(65.19±7.83 vs 63.13±7.56,67.59±9.27 vs 67.11±8.96,59.13±8.52 vs 58.77±8.78,P>0.05),治疗后,两组的血清TNF-α、CRP、IL-6水平都有所降低,且研究组的血清TNF-α、CRP、IL-6水平降低更多(19.37±3.65 vs 29.82±5.23,17.26±3.25 vs 27.51±4.16,15.56±2.44 vs 23.41±3.53,P<0.05)。结论:六磨汤联合芒硝外敷可有效改善EPISBO患者的临床症状,降低胃肠功能恢复的时间,调节胃肠激素水平和血清炎症因子,且具有一定的安全性。 展开更多
关键词 六磨汤 芒硝外敷 炎性肠梗阻 肠道屏障功能 血管活性肠肽
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肿瘤坏死因子-α对小鼠小肠类器官生长、屏障功能和肠道功能细胞的影响 被引量:1
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作者 贺文胜 谢文帅 +3 位作者 李顺康 匡雁玲 刘玉兰 王丹 《中国畜牧兽医》 CAS CSCD 北大核心 2024年第2期491-499,共9页
[目的]研究肿瘤坏死因子-α(TNF-α)对小肠类器官生长、紧密连接蛋白及各种功能细胞标记基因的影响,以建立小肠类器官的疾病损伤模型。[方法]取小鼠小肠,用温和细胞解离试剂(GCDR)消化液分离小鼠隐窝细胞并用肠道类器官培养基培养。选... [目的]研究肿瘤坏死因子-α(TNF-α)对小肠类器官生长、紧密连接蛋白及各种功能细胞标记基因的影响,以建立小肠类器官的疾病损伤模型。[方法]取小鼠小肠,用温和细胞解离试剂(GCDR)消化液分离小鼠隐窝细胞并用肠道类器官培养基培养。选取0(对照组)、50、250、500 ng/mL TNF-α刺激小肠类器官48 h,光学显微镜下观察类器官生长情况,Edu染色示踪细胞增殖的情况,利用实时荧光定量PCR检测细胞增殖、屏障功能和肠道功能细胞标记基因mRNA表达水平。[结果](1)与对照组相比,50和250 ng/mL TNF-α显著降低小肠类器官的出芽率(P<0.05),而对类器官形成率无影响(P>0.05);250和500 ng/mL TNF-α导致小肠类器官坏死率显著升高(P<0.05)。(2)与对照组相比,250 ng/mL TNF-α显著降低小肠类器官紧密连接蛋白Occludin mRNA表达量(P<0.05);500 ng/mL TNF-α显著提高小肠类器官紧密连接蛋白Claudin-1 mRNA表达量(P<0.05)。(3)与对照组相比,50、250、500 ng/mL的TNF-α均导致TNF-α mRNA表达量显著上升(P<0.05),但对白细胞介素6(IL-6)的表达量无显著影响(P>0.05);250和500 ng/mL TNF-α导致IL-1β mRNA表达量显著上升(P<0.05)。(4)250 ng/mL TNF-α导致增殖细胞标记基因Ki67和Pcna基因mRNA表达量显著降低(P<0.05)。(5)与对照组相比,50 ng/mL TNF-α刺激显著降低Lgr5基因mRNA表达量(P<0.05);250和500 ng/mL TNF-α刺激显著降低Muc2、Chga和Lyz基因mRNA表达量;250 ng/mL TNF-α刺激显著降低Alpi基因mRNA表达量(P<0.05)。[结论]250 ng/mL TNF-α刺激可抑制小肠类器官的生长,抑制肠道干细胞的增殖及各种功能细胞的分化。本研究结果可为今后临床应用提供参考。 展开更多
关键词 肿瘤坏死因子-α(TNF-α) 小肠类器官 出芽率 紧密连接蛋白 肠道功能细胞
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非小细胞肺癌不同中医证型与肠道菌群-免疫功能相关性研究
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作者 周夏成 刘远财 +3 位作者 孙梦莹 杨佳颖 陈卓 张爱琴 《中国现代医生》 2024年第6期1-5,共5页
目的探讨不同中医证型非小细胞肺癌肠道菌群及免疫功能的基本特征。方法选取2019年3—10月于浙江省肿瘤医院胸外科门诊就诊且诊断为非小细胞肺癌的患者46例作为患者组,其中气滞血瘀证组13例,脾虚湿滞证组12例,气阴两虚证组7例,阴虚内热... 目的探讨不同中医证型非小细胞肺癌肠道菌群及免疫功能的基本特征。方法选取2019年3—10月于浙江省肿瘤医院胸外科门诊就诊且诊断为非小细胞肺癌的患者46例作为患者组,其中气滞血瘀证组13例,脾虚湿滞证组12例,气阴两虚证组7例,阴虚内热证组14例;选取同期12名健康志愿者作为健康对照组,收集纳入者的粪便标本,用16S rDNA技术检测肠道微生态。采集纳入者的血清标本,通过酶联免疫吸附试验(enzyme linked immunosorbent assay,ELISA)比较纳入者的白细胞介素(interleukin,IL)-12和干扰素γ(interferon-γ,IFN-γ)差异。结果与健康对照组比较,属水平相对丰度前20的种系中,气阴两虚证组有6个差异性菌属,阴虚内热证组有4个差异性菌属,气滞血瘀证组有5个差异性菌属,脾虚湿滞证组有3个差异性菌属。气滞血瘀证组患者血清中的IL-12含量显著降低,气阴两虚证组患者血清中的IFN-γ含量显著升高,其余差异均无统计学意义。结论不同中医证型非小细胞肺癌具有特异的肠道菌群,罗斯氏菌属(Roseburia)、另枝菌属(Alistipes)可能通过调控IL-12、IFN-γ表达影响宿主免疫应答。 展开更多
关键词 非小细胞癌 肠道菌群 免疫功能 中医证型
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基于心肺两脏和肠道的关系论治儿童功能性便秘
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作者 葛飞飞 刘军序 +2 位作者 孙洁丽 杨秋月 彭婕 《中外医学研究》 2024年第33期181-184,共4页
功能性便秘(FC)在儿童中是一种相当普遍的问题,主要表现为持续性排便困难、排便频率减少及排便时间延长。不良的饮食及起居习惯、环境气候变化、压力情绪、遗传等多重因素的影响,致使FC比例呈逐年上升趋势,对儿童的日常生活有着不小的... 功能性便秘(FC)在儿童中是一种相当普遍的问题,主要表现为持续性排便困难、排便频率减少及排便时间延长。不良的饮食及起居习惯、环境气候变化、压力情绪、遗传等多重因素的影响,致使FC比例呈逐年上升趋势,对儿童的日常生活有着不小的影响。心肺两脏与肠道之间存在密切的生理与病理联系,心肺功能的异常可能导致肠道功能紊乱,从而引发便秘。因此,从心肺两脏与肠道的关系入手,探讨儿童FC的发病机制与治疗方法具有重要意义。本文还通过临床现状和讨论,进一步阐述了基于心肺两脏和肠道关系的儿童FC治疗方法的临床应用,力求寻找治疗儿童FC的新思路、新方法,以达到缓解、甚至治愈儿童FC的目的。 展开更多
关键词 小肠 大肠 功能性便秘
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Probiotic effects on intestinal fermentation patterns in patients with irritable bowel syndrome 被引量:16
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作者 Jacqueline S Barrett Kim EK Canale +2 位作者 Richard B Gearry Peter M Irving Peter R Gibson 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第32期5020-5024,共5页
AIM: To determine whether Lactobacillus casei strain Shirota (Yakult) can alter small intestinal bacterial overgrowth (SIBO), as tested by the lactulose breath test, and whether this is associated with changes in... AIM: To determine whether Lactobacillus casei strain Shirota (Yakult) can alter small intestinal bacterial overgrowth (SIBO), as tested by the lactulose breath test, and whether this is associated with changes in symptoms in irritable bowel syndrome (IBS). METHODS: 18 patients with IBS (Rome Ⅱ criteria), who showed an early rise in breath hydrogen with lactulose (ERBHAL), consumed 65 mL of Yakult daily for 6 wk. Lactulose breath test was repeated at the end of the treatment period. Symptoms were recorded daily using a 10 cm visual analogue scale. RESULTS: 14 patients completed the study, 9 (64%) had reversal of ERBHAL, with the median time of first rise in breath hydrogen increasing from 45 to 75 min (P = 0.03). There was no significant improvement in the symptom score with probiotic therapy, except for wind (P = 0.04). Patients commencing with at least moderate symptoms and who no longer had ERBHAL at the end of treatment, showed improvement in the overall symptoms scores [median final score 5.3 (IQR 3.9-5.9), 55% reduction; n = 6] to a greater extent than those who had had persisting ERBHAL [final score 6.9 (5.0-7.0), 12% reduction; n = 5; P = 0.18]. CONCLUSION: Yakult is effective in altering fermentation patterns in the small bowel, consistent with reducing SIBO. The loss of ERBHAL was associated with reduced symptoms. The true interpretation of these findings awaits a randornised, controlled trial. 展开更多
关键词 PROBIOTICS small intestinal bacterial overgrowth Breath hydrogen testing functional gut symptoms
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ABSORPTIVE FUNCTION OF SEGMENTAL ALLOTRANSPLANTED SMALL INTESTINES IN PIGS
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作者 赵允召 黎介寿 +1 位作者 李宁 廖彩仙 《Chinese Medical Journal》 SCIE CAS CSCD 1995年第1期15-19,共5页
Ten outbred pigs were each operated on for three times. First, a 130 cm length of terminal ileum of each pig was isolated on its vascular pedicle as a Thiry-Vella loop. One week later, the solitary ileal segments were... Ten outbred pigs were each operated on for three times. First, a 130 cm length of terminal ileum of each pig was isolated on its vascular pedicle as a Thiry-Vella loop. One week later, the solitary ileal segments were transplanted heterotopically in two pigs. And after 28 days of heterotopic transplantation, the transplanted intestine was interposed into continuity of host intestine as orthotopic transplant. During the experiment, tests were made on 6th day after the first operation (period 1), the 14th (II), 28th (III) day after heterotopic transplantation, and 3 weeks after interposition (IV) respectively for the levels of glucose, palmitate and leucine. Additionally, at period I, III, and IV, a 3 cm length of intestinal mucosa was excised for morphologic observation and determination of DNA, RNA and protein contents. After heterotopic transplantation, the absorptive function of transplanted intestine was severely impaired for two weeks. The absorption of glucose! and palmitate was partially recovered by period III, at which time leucine level had return to normal. At period IV, the absorptive function of glucose and leucine had surpassed normal levels, while palmitate had risen to the level of pretransplantation. After transplantation, at period III, DNA, RNA and protein contents were well below normal. Three weeks after orthotopic transplantation, RNA and protein had risen to normal level, while DNA content remained below normal, The morphologic changes during the experiment were correlated with the changes of contents in RNA, protein and DNA. The area, height, width of villi and the area, depth, width:of crypt were below normal at III and recovered by 3 weeks after orthotopic transplantation (period IV), but were still lower than the levels at pretransplantation. Crypt depths were deeper than those of pretransplantation. 展开更多
关键词 DNA RNA ABSORPTIVE function OF SEGMENTAL ALLOTRANSPLANTED small intestineS IN PIGS THAN LENGTH IV
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四磨汤对功能性消化不良大鼠CNP/NPR-B/cGMP信号通路的影响 被引量:1
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作者 周赛男 蔺晓源 +4 位作者 陈思清 周姝 韩运宗 刘琴 符佳 《湖南中医药大学学报》 CAS 2023年第7期1165-1172,共8页
目的 通过研究四磨汤对功能性消化不良(functional dyspepsia, FD)模型大鼠CNP/NPR-B/cGMP信号通路的影响,进一步探讨其作用机制。方法 将Wistar大鼠随机分为对照组、模型组、低浓度四磨汤组、中浓度四磨汤组、高浓度四磨汤组以及莫沙... 目的 通过研究四磨汤对功能性消化不良(functional dyspepsia, FD)模型大鼠CNP/NPR-B/cGMP信号通路的影响,进一步探讨其作用机制。方法 将Wistar大鼠随机分为对照组、模型组、低浓度四磨汤组、中浓度四磨汤组、高浓度四磨汤组以及莫沙必利组。参考文献中的方法使用夹尾刺激联合不规则饮食14 d制备FD大鼠模型。造模结束后,四磨汤低、中、高浓度组大鼠分别灌胃1.8、2.4、3.6 g/(kg·d)剂量的四磨汤药液,莫沙必利组灌胃0.305 mg/(kg·d)剂量的莫沙必利药液,对照组和模型组给予等体积蒸馏水,给药14 d。观测大鼠体质量变化;酚红法检测大鼠胃排空率;碳粉法检测大鼠小肠推进率;ELISA法检测血清中胃动素(motilin, MTL)、胃泌素(gastrin, GAS)、胃窦平滑肌C型利钠肽(C-type natriuretic peptide, CNP)、环磷酸鸟苷(cyclic guanosine monophosphate, cGMP)的含量;RT-qPCR和Western blot分别检测胃窦平滑肌CNP、B型尿钠肽受体(type B urinary natriuretic peptide receptor, NPR-B)的基因和蛋白表达。结果 与对照组比较,模型组大鼠体质量降低(P<0.05),胃排空率与小肠推进率明显减弱(P<0.05),血清MTL、GAS含量降低(P<0.05),胃窦平滑肌CNP、cGMP含量升高(P<0.05),CNP、NPR-B的m RNA和蛋白表达增加(P<0.05)。与模型组相比,四磨汤各剂量组大鼠体质量显著增加(P<0.05),胃排空率和小肠推进率显著提高(P<0.05),血清MTL和GAS含量显著增加(P<0.05),胃窦平滑肌CNP、cGMP含量降低(P<0.05),CNP、NPR-B的mRNA和蛋白表达降低(P<0.05)。结论 四磨汤通过抑制CNP/NPR-B/c GMP信号通路以促进胃肠动力可能是其治疗FD的作用机制之一。 展开更多
关键词 功能性消化不良 四磨汤 CNP/NPR-B/cGMP信号通路 大鼠 胃排空率 小肠推进率
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功能性肠病大鼠模型两种造模方法的比较 被引量:1
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作者 倪艳 是文辉 +5 位作者 曹彦 李佳佳 李建瑛 董翔 赵红琼 许琴 《实验动物科学》 2023年第1期55-60,共6页
目的比较功能性肠病大鼠模型两种造模方法。方法SPF级雄性SD大鼠30只,随机分为3组:正常组、模型Ⅰ组、模型Ⅱ组。模型Ⅰ组为束缚结合直肠高敏刺激法,模型Ⅱ组为束缚结合冷水(冰水混合物,0℃)刺激法制作功能性肠病大鼠模型。并以血液指... 目的比较功能性肠病大鼠模型两种造模方法。方法SPF级雄性SD大鼠30只,随机分为3组:正常组、模型Ⅰ组、模型Ⅱ组。模型Ⅰ组为束缚结合直肠高敏刺激法,模型Ⅱ组为束缚结合冷水(冰水混合物,0℃)刺激法制作功能性肠病大鼠模型。并以血液指标、回肠和结肠的病理学变化及肠推动比来评定造模效果。结果1)血常规:模型Ⅰ、Ⅱ组白细胞数(WBC)、红细胞数(RBC)、淋巴细胞数(Lymph)、血小板数(PLT)与正常组比较无显著性差异(P>0.05);(2)血液生化:谷丙转氨酶(ALT)、谷草转氨酶(AST)、肌酐(CREA)、肌酸激酶(CK)、镁(Mg)、磷(P)、乳酸脱氢酶(LDH)与正常组相比无显著性差异(P>0.05)。(3)小肠推动比率:模型Ⅰ组和模型Ⅱ组小肠推动比率与正常组比较,显著降低(P<0.05)。(4)模型Ⅰ组与模型Ⅱ组大鼠回肠及结肠表现出基本一致的病理变化:回肠部分微绒毛顶部上皮细胞脱落、结构不完整,部分微绒毛固有层上皮细胞轻度水肿、核浓缩,固有层中毛细血管轻度扩张充血;结肠上皮细胞轻微肿胀、固有层毛细血管轻度扩张充血,偶见基层部分平滑肌细胞嗜酸性变,微绒毛固有层上皮细胞下有少量炎性细胞,偶见微绒毛上皮细胞脱落。结论两种造模方法均可复制出胃肠功能障碍的基本病理生理特征,即结肠、回肠均表现出一定的病理损伤,但未出现明显的炎性反应,小肠推动率有明显降低。两种大鼠模型均复制出胃肠功能障碍的基本病理特征,从操作方法上,当批量处理及特殊环境下造模时,推测模型Ⅱ方法操作性更高。 展开更多
关键词 功能性肠病 小肠推动率 结肠 回肠 动物模型
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基于“小肠气化失司-泌别清浊障碍”探析糖尿病血糖波动机理 被引量:1
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作者 彭思涵 谢子妍 +3 位作者 谢菊 刘桠 张翕宇 谢春光 《四川中医》 2023年第5期34-38,共5页
血糖波动较高血糖危害更甚,是当前临床的治疗难点及研究热点。本文从小肠功能入手,厘清小肠与脾在精微物质生、长、化、收、藏中的具体作用,认为血糖波动应主要责之小肠失于“气化-泌别清浊”,使精微失源、失清、失运,其核心病机可由小... 血糖波动较高血糖危害更甚,是当前临床的治疗难点及研究热点。本文从小肠功能入手,厘清小肠与脾在精微物质生、长、化、收、藏中的具体作用,认为血糖波动应主要责之小肠失于“气化-泌别清浊”,使精微失源、失清、失运,其核心病机可由小肠气化失司、清浊不分、精失正化以概之。这与现代医学“肠道菌群失调可多途径、多角度影响血糖波动”的观点高度切合。故着眼于“小肠气化失司-泌别清浊障碍”的基础病机,以肠道菌群为重要靶点,重视“益肠运肠”的研究方向有望拓展中医药防治糖尿病血糖波动的新视野。 展开更多
关键词 小肠气化 泌别清浊 血糖波动 肠道菌群 糖尿病
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小麦粉替代玉米对藏羊羔羊肠道组织形态、消化酶活性、抗氧化能力和肉品质的影响 被引量:2
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作者 周力 马博妍 +2 位作者 高占红 张峰硕 桂林生 《中国粮油学报》 CAS CSCD 北大核心 2023年第4期98-103,共6页
本实验旨在评估在精料补充料中用10%小麦粉替代玉米对高原型藏羊小肠形态发育、消化酶活性、抗氧化功能以及肌肉氨基酸含量的影响。选取60只体重相近且发育良好的2~3月龄高原型藏羊(♂),随机分为2组,每组5个重复,每个重复6只羊,分别饲... 本实验旨在评估在精料补充料中用10%小麦粉替代玉米对高原型藏羊小肠形态发育、消化酶活性、抗氧化功能以及肌肉氨基酸含量的影响。选取60只体重相近且发育良好的2~3月龄高原型藏羊(♂),随机分为2组,每组5个重复,每个重复6只羊,分别饲喂玉米日粮(玉米组)和10%小麦粉替代玉米日粮(小麦组)。实验分为预饲期10 d,正试期90 d。结果表明:玉米组空肠的绒毛宽度、黏膜厚度以及回肠的绒毛高度、绒毛高度/隐窝深度均显著小于小麦组(P<0.05);两组间空肠的胰蛋白酶、糜蛋白酶、脂肪酶、纤维素酶及α-淀粉酶活性差异均不显著(P>0.05);小麦组空肠的丙二醛含量显著低于玉米组(P<0.05),而其他指标差异不显著(P>0.05);两组间肌肉中鲜味氨基酸、甜味氨基酸及总氨基酸含量差异均不显著(P>0.05)。精料中用10%小麦粉替代玉米有利于藏羊小肠组织形态发育,并能够减轻空肠脂质氧化程度,但对空肠消化酶活性和肌肉氨基酸含量影响较小,可考虑在藏羊舍饲中开展推广。 展开更多
关键词 高原型藏羊 小肠 抗氧化功能 消化酶活性 氨基酸 小麦 玉米
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谷氨酰胺与丁酸梭菌对断奶仔猪生长性能、免疫功能、小肠形态和肠道菌群的影响 被引量:71
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作者 刘婷婷 张帅 +3 位作者 邓斐月 曹广添 陈安国 杨彩梅 《动物营养学报》 CAS CSCD 北大核心 2011年第6期998-1005,共8页
本试验旨在研究谷氨酰胺、丁酸梭菌及其二者复合添加对断奶仔猪生长性能、免疫功能、小肠形态结构和盲肠菌群的影响。试验选用288头21日龄断奶的杜×大×长三元杂交仔猪,随机分为4组,每组3个重复,每个重复24头猪。分别饲喂... 本试验旨在研究谷氨酰胺、丁酸梭菌及其二者复合添加对断奶仔猪生长性能、免疫功能、小肠形态结构和盲肠菌群的影响。试验选用288头21日龄断奶的杜×大×长三元杂交仔猪,随机分为4组,每组3个重复,每个重复24头猪。分别饲喂基础饲粮(对照组)、基础饲粮+1%谷氨酰胺(谷氨酰胺组)、基础饲粮+500mg/kg丁酸梭菌(丁酸梭菌组)和基础饲粮+1%谷氨酰胺+500mg/kg丁酸梭菌(复合组)。结果表明:1)断奶后14~21及0~21d,谷氨酰胺组和复合组的平均日增重显著高于对照组(P〈0.05),且复合组的平均日增重显著大于丁酸梭菌组(P〈0.05),断奶后0~21d,复合组的料重比显著低于对照组(P〈0.05)。2)断奶后第7天,复合组补体4(C4)水平显著高于对照组(P〈0.05),各试验组血清超氧化物歧化酶(SOD)活性均显著高于对照组(P〈0.05),丁酸梭菌组和复合组血清总抗氧化能力(T—AOC)显著高于对照组(P〈0.05),断奶后第14天(P〈0.05),各试验组的溶菌酶活性、补体3(C3)水平和T—AOC均显著高于对照组(P〈0.05),谷氨酰胺组和复合组C4水平和SOD活性显著高于对照组(P〈0.05)。3)断奶后第7天,各试验组的十二指肠绒毛高度均显著高于对照组(P〈0.05),丁酸梭菌组回肠绒毛高度显著高于对照组(P〈0.05),复合组空肠以及回肠隐窝深度均显著低于对照组(P〈0.05);断奶后第14天,复合组的十二指肠和回肠绒毛高度显著大于对照组(P〈0.05),隐窝深度显著小于对照组(P〈0.05)。4)断奶后第14天,复合组盲肠的大肠杆菌数显著小于对照组(P〈0.05),双歧杆菌和乳酸杆菌数显著大于对照组(P〈0.05)。 展开更多
关键词 断奶仔猪 谷氨酰胺 丁酸梭菌 免疫功能 小肠形态 盲肠菌群
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参香养胃胶囊对肠道平滑肌药理研究的初步探讨 被引量:7
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作者 钟志勇 荣向路 +3 位作者 吴清和 黄萍 朱文静 朱陈丁 《中成药》 CAS CSCD 北大核心 2006年第3期386-390,共5页
目的:探讨参香养胃胶囊(党参、藿香、白术等)对小鼠和兔的肠道平滑肌的影响及其作用机制。方法:通过小鼠小肠推进实验观察参香养胃胶囊对正常、亢进及抑制状态下胃肠运动的影响,以及利用离体肠管实验研究其作用机制。结果:参香养胃胶囊... 目的:探讨参香养胃胶囊(党参、藿香、白术等)对小鼠和兔的肠道平滑肌的影响及其作用机制。方法:通过小鼠小肠推进实验观察参香养胃胶囊对正常、亢进及抑制状态下胃肠运动的影响,以及利用离体肠管实验研究其作用机制。结果:参香养胃胶囊能抑制正常和亢进状态的小鼠小肠运动,对抑制状态的小鼠小肠运动无显著影响。参香养胃胶囊能显著抑制正常离体肠管的活动,并存在量效关系,能拮抗Ach、Neo、BaC l2引起的离体肠管痉挛,但对酚妥拉明孵育的离体肠管的作用不明显。结论:参香养胃胶囊对离体平滑肌和肠推进存在抑制作用,其作用机制可能与抗胆碱样、钙拮抗等有关,可能与激动肾上腺素α受体无关。 展开更多
关键词 参香养胃胶囊 肠推进 离体实验 作用机理
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N-乙酰半胱氨酸对大鼠小肠辐射损伤的防护作用 被引量:8
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作者 王瑜 张再重 +2 位作者 陈少全 王烈 郑国华 《第二军医大学学报》 CAS CSCD 北大核心 2008年第6期651-654,共4页
目的:探讨N-乙酰半胱氨酸(N-acetylcysteine,NAC)对小肠辐射损伤的防护作用及其作用机制。方法:60只雄性SD大鼠随机分为5组,单纯照射组(n=12)仅接受单次腹部照射;高、中、低剂量NAC给药组(n=12)均接受10Gy X线单次腹部照射并分别给予腹... 目的:探讨N-乙酰半胱氨酸(N-acetylcysteine,NAC)对小肠辐射损伤的防护作用及其作用机制。方法:60只雄性SD大鼠随机分为5组,单纯照射组(n=12)仅接受单次腹部照射;高、中、低剂量NAC给药组(n=12)均接受10Gy X线单次腹部照射并分别给予腹腔注射NAC 300、200、50mg/kg,连续7d;正常对照组(n=12)给予腹腔注射1ml0.9%NaCl溶液,连续7d。NAC在单次腹部照射前3d开始经腹腔注射给药,至照射后第3日结束。照射后第3日,禁食12h后处死大鼠,取血与末端回肠标本。光镜下观察并计算单位面积肠片上的肠腺存活率和绒毛数,测定血浆中D-乳酸含量和二胺氧化酶(diam- ine oxidase,DAO)活性.检测小肠组织中超氧化物歧化酶(superoxide dismutase,SOD)、丙二醛(malondialdehyde.MDA)、还原型谷胱甘肽(glutathione,GSH)含量。结果:照射后大鼠末端回肠肠黏膜结构受到破坏,血浆中D-乳酸、DAO含量显著升高,小肠组织中SOD活性、GSH含量显著降低,MDA含量显著升高(P<0.01)。不同剂量NAC给药处理后可不同程度地降低小肠黏膜绒毛数减少并提高肠腺存活率(P<0.05,P<0.01),抑制血浆中D-乳酸、DAO含量升高,提高小肠组织中SOD、GSH含量并减少脂质过氧化产物MDA的生成(P<0.05,P<0.01)。结论:NAC通过增强机体抗氧化能力、减轻肠屏障功能障碍的严重程度.维护机体内氧化还原平衡以及小肠黏膜结构和功能的完整性,对小肠辐射损伤起到有效的防护作用。 展开更多
关键词 N-乙酰半胱氨酸 小肠 辐射损伤 辐射防护 放射性肠炎 肠屏障功能障碍
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隔药饼灸对功能性胃肠病肝郁脾虚模型大鼠胃肠激素及胃肠动力的影响 被引量:25
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作者 刘未艾 郁保生 +3 位作者 常小荣 刘密 章海凤 岳增辉 《世界华人消化杂志》 CAS 北大核心 2013年第11期1002-1007,共6页
目的:观察隔药饼灸对功能性胃肠病(functional gastrointestinal disorders,FGIDs)肝郁脾虚模型大鼠胃肠激素及胃肠动力的影响,探讨隔药饼灸治疗FGIDs的可能作用机制.方法:将60只SD大鼠随机分为空白组、模型组、隔药饼灸组、逍遥散组和... 目的:观察隔药饼灸对功能性胃肠病(functional gastrointestinal disorders,FGIDs)肝郁脾虚模型大鼠胃肠激素及胃肠动力的影响,探讨隔药饼灸治疗FGIDs的可能作用机制.方法:将60只SD大鼠随机分为空白组、模型组、隔药饼灸组、逍遥散组和多潘立酮组5组,每组12只,除空白组外其余4组采用复合病因造模法(慢性束缚应激+过度疲劳+饮食失节)造模,连续21d;再按被试因素施加方法每天进行隔药饼灸和逍遥散、多潘立酮灌胃14d.实验结束后观测大鼠胃排空率、小肠推进率,取血清用ELISA法检测胃动素(motilin,MTL)、胃泌素(gastrin,Gas)和血管活性相关肠肽(vasoactive intestinal peptide,VIP)的水平.结果:隔药饼灸组、逍遥散组与多潘立酮组大鼠MTL、GAS和小肠推进率明显高于模型组,VIP含量和胃残留率明显低于模型组,差异均有高度统计学意义(MTL含量475.78pg/mL±77.27pg/mL,458.24pg/mL±63.02pg/mL,453.95pg/mL±54.04pg/mLvs397.93pg/mL±48.77pg/mL,P<0.05orP<0.01,GAS含量67.12pg/mL±9.08pg/mL,67.15pg/mL±8.75pg/mL,64.57pg/mL±8.68pg/mLvs57.34pg/mL±3.39pg/mL,P<0.01,小肠推进率60.19%±6.99%,60.55%±7.92%,62.04%±6.50%vs51.78%±5.57%,P<0.01,VIP含量155.71pg/mL±14.66pg/mL,151.79pg/mL±11.46pg/mL,147.03pg/mL±22.16pg/mLvs170.55pg/mL±16.83pg/mL,P<0.05orP<0.01,胃残留率31.13%±16.62%,35.55%±15.54%,30.79%±12.03%vs49.83%±11.25%,P<0.01),但3组间比较差异无统计学意义(P>0.05).结论:隔药饼灸组能和逍遥散组、多潘立酮组一样通过升高血清中MTL和GAS,降低VIP的水平从而达到促进胃排空和小肠推进的作用,这可能是其作用机制之一. 展开更多
关键词 隔药饼灸 功能性胃肠病 胃动素 胃泌素 血管活性相关肠肽 胃排空 小肠推进
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五个胃肠复方对小鼠胃肠运动影响的比较研究 被引量:10
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作者 陈建章 陈文 +2 位作者 朱荣林 喻菁 杨永寿 《辽宁中医杂志》 CAS 北大核心 2009年第5期830-832,共3页
目的:观察比较半夏泻心汤、四逆散、左金丸、半夏泻心汤合四逆散(半四合方)、半夏泻心汤合四逆散及左金丸(半四左合方)等5个复方对小鼠胃排空、小肠推进的影响。方法:通过观察正常小鼠、胃肠运动抑制模型小鼠和胃肠运动亢进模型小鼠胃... 目的:观察比较半夏泻心汤、四逆散、左金丸、半夏泻心汤合四逆散(半四合方)、半夏泻心汤合四逆散及左金丸(半四左合方)等5个复方对小鼠胃排空、小肠推进的影响。方法:通过观察正常小鼠、胃肠运动抑制模型小鼠和胃肠运动亢进模型小鼠胃内葡聚糖蓝-2000排空率、小肠内葡聚糖蓝-2000推进率来研究5个复方对小鼠胃排空、小肠推进的影响。结果:对正常小鼠,左金丸抑制其胃排空和小肠推进,其余4个复方均促进其胃排空和小肠推进(P<0.05;P<0.01);对胃肠运动抑制模型小鼠,左金丸并不加重其抑制,其余四个复方均可减轻其胃肠抑制,但以半四合方和半四左合方效果较好(P<0.01);对胃肠运动亢进模型小鼠,5个复方均可减轻其亢进,但仅半四左合方有统计学意义(P<0.05)。结论:5个胃肠复方对不同病理状态小鼠胃肠运动呈现一定双向调节作用,以半四左合方作用为最佳,初步显示合方配伍组方有其科学性和先进性。 展开更多
关键词 方剂 胃排空 小肠推进
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