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Efficacy of Lactobacillus rhamnosus GG in treatment of acute pediatric diarrhea: A systematic review with meta-analysis 被引量:14
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作者 Ya-Ting Li Hong Xu +5 位作者 Jian-Zhong Ye Wen-Rui Wu Ding Shi Dai-Qiong Fang Yang Liu Lan-Juan Li 《World Journal of Gastroenterology》 SCIE CAS 2019年第33期4999-5016,共18页
BACKGROUND Diarrhea is a major infectious cause of childhood morbidity and mortality worldwide.In clinical trials,Lactobacillus rhamnosus GG ATCC 53013(LGG)has been used to treat diarrhea.However,recent randomized con... BACKGROUND Diarrhea is a major infectious cause of childhood morbidity and mortality worldwide.In clinical trials,Lactobacillus rhamnosus GG ATCC 53013(LGG)has been used to treat diarrhea.However,recent randomized controlled trials(RCTs)found no evidence of a beneficial effect of LGG treatment.AIM To evaluate the efficacy of LGG in treating acute diarrhea in children.METHODS The EMBASE,MEDLINE,PubMed,Web of Science databases,and the Cochrane Central Register of Controlled Trials were searched up to April 2019 for metaanalyses and RCTs.The Cochrane Review Manager was used to analyze the relevant data.RESULTS Nineteen RCTs met the inclusion criteria and showed that compared with the control group,LGG administration notably reduced the diarrhea duration[mean difference(MD)-24.02 h,95%confidence interval(CI)(-36.58,-11.45)].More effective results were detected at a high dose≥1010 CFU per day[MD-22.56 h,95%CI(-36.41,-8.72)]vs a lower dose.A similar reduction was found in Asian and European patients[MD-24.42 h,95%CI(-47.01,-1.82);MD-32.02 h,95%CI(-49.26,-14.79),respectively].A reduced duration of diarrhea was confirmed in LGG participants with diarrhea for less than 3 d at enrollment[MD-15.83 h,95%CI(-20.68,-10.98)].High-dose LGG effectively reduced the duration of rotavirus-induced diarrhea[MD-31.05 h,95%CI(-50.31,-11.80)]and the stool number per day[MD-1.08,95%CI(-1.87,-0.28)].CONCLUSION High-dose LGG therapy reduces the duration of diarrhea and the stool number per day.Intervention at the early stage is recommended.Future trials are expected to verify the effectiveness of LGG treatment. 展开更多
关键词 LACTOBACILLUS rhamnosus GG acute diarrhea Children ROTAVIRUS PROBIOTICS Systematic review META-ANALYSIS
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Clinicopathogenic studies of acute diarrhea in children 被引量:2
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作者 CAI Li Min, ZHANG Chang, CHEN He, JIANG Wei Ping and MAO Wen Xiang Department of Infectious Diseases, The First People′s Municipal Hospital of Wenling, Wenling City 317500, Zhejiang Province, China 《World Journal of Gastroenterology》 SCIE CAS CSCD 1997年第3期34-34,共1页
ClinicopathogenicstudiesofacutediarheainchildrenCAILiMin,ZHANGChang,CHENHe,JIANGWeiPingandMAOWenXiangDepa... ClinicopathogenicstudiesofacutediarheainchildrenCAILiMin,ZHANGChang,CHENHe,JIANGWeiPingandMAOWenXiangDepartmentofInfectiou... 展开更多
关键词 diarrhea/etiology acute DISEASES diarrhea/diagnosis
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A blind, randomized comparison of racecadotril and loperamide for stopping acute diarrhea in adults 被引量:13
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作者 Hwang-Huei Wang Ming-Jium Shieh Kuan-Fu Liao 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第10期1540-1543,共4页
AIM: Racecadotril is a specific enkephalinase inhibitor that exhibits intestinal antisecretory activity without affecting intestinal transit. Loperamide is an effective anti-diarrheal agent, but it usually induces con... AIM: Racecadotril is a specific enkephalinase inhibitor that exhibits intestinal antisecretory activity without affecting intestinal transit. Loperamide is an effective anti-diarrheal agent, but it usually induces constipation. This study is to compare the efficacy, safety, and tolerability of racecadotril versus Ioperamide in the outpatient treatment of acutediarrhea in adults.METHODS: A two-center, randomized, parallel-group,single-blind study was carried out to compare the efficacy,tolerability, and safety of racecadotril (100 mg thrics daily) and Ioperamide (2.0 mg 2 twics daily) in 62 adult patients suffering from acute diarrhea. The main efficacy criterion used was the duration of diarrhea after beginning the treatment (in hours). Other signs and symptoms werealso evaluated.RESULTS: The clinical success rates for these antidiarrheal treatments were 95.7% and 92.0% for racecadotril and Ioperamide respectively. Patients on racecadotril had a median duration of diarrhea of 19.5 h compared with a median of 13 h for patients on Ioperamide.Rapid improvement in anal burn and nausea was found for each drug. However, more patients on Ioperamide suffered from reactive constipation (29.0% vs 12.9%).Itching, another adverse event was notably higher in the racecadotril group (28.6% vs 0%). With regard to other adverse events, the two medications showed similar occurrence rates and similar concomitant medicationusage rates.CONCLUSION: Racecadotril and Ioperamide are rapid,equally effective treatments for acute diarrhea in adults,but Ioperamide treatment is associated with a higher incidence of treatment-related constipation. 展开更多
关键词 成年 急性腹泻 消旋卡多曲 药物治疗 药物实验
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Efficacy of stool multiplex polymerase chain reaction assay in adult patients with acute infectious diarrhea 被引量:2
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作者 Jae Sung Ahn Seung In Seo +6 位作者 Jinseob Kim Taewan Kim Jin Gu Kang Hyoung Su Kim Woon Geon Shin Myoung Kuk Jang Hak Yang Kim 《World Journal of Clinical Cases》 SCIE 2020年第17期3708-3717,共10页
BACKGROUND Recently,stool multiplex polymerase chain reaction(PCR)tests have been developed for identifying diarrhea-causing bacterial pathogens.Furthermore,fecal calprotectin is a well-known effective marker for inte... BACKGROUND Recently,stool multiplex polymerase chain reaction(PCR)tests have been developed for identifying diarrhea-causing bacterial pathogens.Furthermore,fecal calprotectin is a well-known effective marker for intestinal mucosal inflammation.AIM To evaluate the efficacy of stool multiplex PCR and fecal calprotectin in acute infectious diarrhea.METHODS Overall,400 patients with acute infectious diarrhea were enrolled from Kangdong Sacred Heart Hospital(January 2016 to December 2018).Multiplex PCR detected 7 enteropathogenic bacteria including Salmonella,Campylobacter,Shigella,Escherichia coli O157:H7,Aeromonas,Vibrio,and Clostridium difficile.We reviewed clinical and laboratory findings using stool multiplex PCR.RESULTS Stool multiplex PCR test detected considerably more bacterial pathogens than stool culture(49.2%vs 5.2%),with Campylobacter as the most common pathogen(54%).Patients with positive stool PCR showed elevated fecal calprotectin expression compared to patients with negative stool PCR(1124.5±816.9 mg/kg vs 609±713.2 mg/kg,P=0.001).C-reactive protein(OR=1.01,95%CI:1.001-1.027,P=0.034)and sigmoidoscopy-detected colitis(OR=4.76,95%CI:1.101-20.551,P=0.037)were independent factors in stool PCR-based detection of bacterial pathogens.Sensitivity and specificity of calprotectin were evaluated to be 70.5%and 60.9%,respectively(adjusted cut-off value=388 mg/kg).CONCLUSION Stool multiplex PCR test has increased sensitivity in detecting pathogens than conventional culture,and it is correlated with calprotectin expression.Stool multiplex PCR and calprotectin may be effective in predicting clinical severity of infectious diarrhea. 展开更多
关键词 acute infectious diarrhea Stool multiplex polymerase chain reaction CALPROTECTIN
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Formulation of an Early Warning Infectivity Score System for Adult Patients with Acute Bacterial Diarrhea 被引量:1
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作者 WANG Yan ZHANG Tian Peng +2 位作者 XIAO Hong Li QI Hai Yu YIN Cheng Hong 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2014年第1期65-69,共5页
The aim of our study was to develop a scoring system to predict whether diarrhea is of a bacterial origin and whether the diarrheal patients constitute a potential source of infection to others. Adults with acute diar... The aim of our study was to develop a scoring system to predict whether diarrhea is of a bacterial origin and whether the diarrheal patients constitute a potential source of infection to others. Adults with acute diarrhea (n=424) were enrolled in the study. Logistic regression and standard regression coefficients were used to formulate the Early Warning Infectivity Score System for Adults with Acute Bacterial Diarrhea (EWIS-ABD). Four risk factors were identified by logistic regression, including body temperature (P〈0.01), abdominal pain (P〈0.01), leukocyte count in stool (P〈0.01), and unclean dietary history (P〈0.01). EWIS-ABD was thus developed, in which the value 〉5 points was set as an indicator of bacterial diarrhea. The incidence of bacterial diarrhea increased along with the elevated score. EWIS-ABD was more specific for bacterial diarrhea than for viral diarrhea. The accuracy and reliability of EWIS-ABD was high by prospective validation in 478 patients with acute diarrhea. 展开更多
关键词 Formulation of an Early Warning Infectivity Score System for Adult Patients with acute Bacterial diarrhea
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Frequency of E.coli pathotypes in acute diarrhea of children and its related factorsat Beassat hospital,Sanandaj
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作者 Kalantar E Solatni J +1 位作者 Khosravi B Salehi A 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2009年第4期64-66,共3页
Objective:Diarrhea is a leading cause of morbidity and mortality among children in developing countries.The bacterial pathogen most commonly associated with childhood diarrhea is Escherichia coli.A one-year prospectiv... Objective:Diarrhea is a leading cause of morbidity and mortality among children in developing countries.The bacterial pathogen most commonly associated with childhood diarrhea is Escherichia coli.A one-year prospective study was carried out in Sanandaj to determine the prevalence and roles of the different E.coli pathotypes in children less than five years of age with acute diarrhea.Methods:Rectal swab were collected prospectively from children with acute diarrhea and transported to the Department of Microbiology,School of Medicine, KUMS,Sanandaj during 2008.The study was approved by the institutional ethics committee.Results:During this study period,rectal swabs were investigated from a total of 466 children 1 to 144 months of age(mean, 29.97 months±S.D) with diarrhea.Among the children,191(41%,191/466) were girls,and 275 (59%,275/466) were boys.The age-specific incidence rates of acute diarrhea among children 13-24 and 1 - 12 months of age were 37.37%(37/99) and 26.26%(26/99),respectively,during the study period.A total of 99 strains of E.coli were detected.EPEC 59(59.59%) and EIEC 22(22.22%),were the most commonly found Escherichia coli strains detected in stools from children.Disk diffusion testing showed E.coli strains resistance to tetracycline(89.89%),chloramphenicol(88.88%),Ampicillin(79.79%),Amoxicillin (75.75%) and Ceficime(75.75%).Among risk factors like age,sex,haemoglubin,fathers and mothers education,food and weight of children only mother's education was significant(P =0.018).Conclusion: In most of the clinical laboratories in Iran,E.coli does not considered as an etiologic agent responsible for diarrhea. Results in this study revealed that E.coli should be considered as an etiologic agent causing acute diarrhea among children.We therefore,recommend the routine isolation and identification of E.coli strains in all the clinical laboratories in Sanandaj.Guidelines for appropriate use of antibiotics in Sanandaj need updating. 展开更多
关键词 Prevalence of acute diarrhea CHILDREN E.COLI STRAINS Sanandaj
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Prolonged acute diarrhea in adults: Decades of observation from epidemiological perspective in urban Bangladesh
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作者 Sumon Kumar Das Mohammod Jobayer Chisti +5 位作者 Shahnawaz Ahmed Mohammad Abdul Malek Fahmida Dil Farzana Farzana Ferdous Jonathan Latham Abu Syed Golam Faruque 《Open Journal of Gastroenterology》 2013年第3期208-213,共6页
The study aimed to determine the epidemiological, clinical characteristics, and etiology of adults aged ≥20 years presented with prolonged acute diarrhea (≥7 days). A total of 18,210 adults aged ≥20 years were enro... The study aimed to determine the epidemiological, clinical characteristics, and etiology of adults aged ≥20 years presented with prolonged acute diarrhea (≥7 days). A total of 18,210 adults aged ≥20 years were enrolled in the Diarrheal Disease Surveillance System of icddr,b between 1993-2012 and included into the analysis. Of these, 17,631 (97%) had duration of diarrhea ≤6 days, 418 (2%) diarrhea presented with a duration of 7 - 13 days and rest 161 (1%) had history of diarrhea ≥14 days. A higher proportion of adult individuals who had duration of diarrhea ≥14 days (70% vs. 56%;p male. At least 73% of all patients used oral rehydration solution;but proportion was lower among prolonged acute diarrhea groups. Use of antimicrobials was higher among those with duration 7 - 13 days (81%) and ≥14 days (81%). Diarrhea lasting ≥14 days, 47% were suffering from chronic energy deficiency and 30% had history of smoking. Individuals with diarrhea ≥7 days less frequently presented with vomiting, watery stool, frequency of stool >10 times/24 hours, drowsy or lethargy, fast breathing, some or severe dehydration, received intravenous saline for initial corrections of dehydration and stayed for longer duration in hospital (≥24 hours) but more often presented with abdominal pain. Stool microscopic examination showed less frequent presence of red blood cells (36% vs. 44%;p = 0.043) and fecal leucocytes (50% vs. 59%;p = 0.029) among individuals with diarrhea ≥14 days compared to those with ≤6 days. None was infected with Vibrio cholerae (≥14 days) (3% for 7 - 13 days);however, isolation rate of Aeromonas was higher among adults with duration for ≥14 days (11%). Only 15% with ≥14 days were positive for Shigella contrary to 19% (7 - 13 days) and 56% (≤6 days). Differences in sociodemographic, clinical presentation and etiology varied with duration of diarrhea among adults. 展开更多
关键词 ADULT BANGLADESH diarrhea PROLONGED acute diarrhea
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A scoring system for assessing the severity of acute diarrhea of adult patients
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作者 Hong-li Xiao Su-xia Ma +3 位作者 Hai-yu Qi Xiaoli Li Yan Wang Cheng-hong Yin 《World Journal of Emergency Medicine》 CAS 2016年第2期130-134,共5页
BACKGROUND: Diarrhea is frequently seen in developed and developing countries, and severe diarrhea is characterized by the high risk of death. Thus, it is very important to assess the severity of diarrhea early. We co... BACKGROUND: Diarrhea is frequently seen in developed and developing countries, and severe diarrhea is characterized by the high risk of death. Thus, it is very important to assess the severity of diarrhea early. We conducted a multi-center study to identify risk factors for the severity of diarrhea in adult patients and formulate an adult diarrhea state score(ADSS) for out-patient clinicians.METHODS: A total of 219 adult patients with acute diarrhea were divided into two groups: 132 patients with mild diarrhea and 87 with severe diarrhea. Logistic regression was used to determine risk factors for the severity of diarrhea. The risk factors were assessed and an ADSS was formulated. Receiver operating characteristic(ROC) analysis was made to evaluate the diagnostic accuracy of ADSS, and the Kappa test was used to confi rm the diagnostic reliability.RESULTS: Five risk factors for evaluating the severity of diarrhea in adults included age(P<0.05), axillary temperature(P<0.01), mean arterial pressure(P<0.01), white blood cell count(WBC; P<0.01), and WBC in stool(P<0.01). The area under the ROC curve for ADSS was 0.958 when the cut off value was 4(a sensitivity of 0.909; a specif icity of 0.874), and the Kappa value was 0.781(P<0.05).CONCLUSION: The risk factors associated with the pathogenic condition of diarrhea were identifi ed, quantifi ed and formulated into an ADSS, which has high diagnostic accuracy and reliability for the early identifi cation of patients with severe acute diarrhea. 展开更多
关键词 acute diarrhea SEVERITY SCORE
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Clostridium difficile causing acute renal failure: Case presentation and review 被引量:15
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作者 Jasmin Arrich Gottfried H.Sodeck +4 位作者 Gürkan Seng(o|¨)lge Christoforos Konnaris Marcus Müllner Anton N.Laggner Hans Domanovits 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第8期1245-1247,共3页
AIM: Clostridium difficile infection is primarily a nosocomial infection but asymptomatic carriers of Clostridium difficile can be found in up to 5% of the general population.Ampicillin, cephalosporins and clindamycin... AIM: Clostridium difficile infection is primarily a nosocomial infection but asymptomatic carriers of Clostridium difficile can be found in up to 5% of the general population.Ampicillin, cephalosporins and clindamycin are the antibiotics that are most frequently associated with Clostridium difficile-associated diarrhea or colitis. Little is known about acute renal failure as a consequence of Clostridium difficile-associated diarrhea.METHODS: In this case report, we describe the course of Clostridium difficile-associated diarrhea in an 82-yearold patient developing acute renal failure. Stopping the offending agent and symptomatic therapy brought a rapid improvement of diarrhea and acute renal failure, full recovery was gained 18 d after admission. In a systematic review we looked for links between the two conditions.RESULTS: The link between Clostridium difficilr-associated diarrhea and acute renal failure in our patient was most likely volume depletion. However, in experimental studies a direct influence of Clostridium difficile toxins on renal duct cells could be shown.CONCLUSION: Rapid diagnosis, nonspecific supportive treatment and specific antibiotic treatment, especially in the elderly, may lower excess mortality Clostridium difficile-associated diarrhea and renal failure being possible complications. 展开更多
关键词 急性肾疾病 腹泻 并发症 细菌感染 抗生素
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Localized pseudomembranous colitis in the cecum and ascending colon mimicking acute appendicitis
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作者 Ju Won Chyung Dong Gue Shin 《World Journal of Gastrointestinal Surgery》 SCIE CAS 2013年第5期156-160,共5页
A 61-year-old male was admitted to our hospital due to right lower abdominal pain and watery diarrhea for 3 d.Beginning 3 wk before he arrived in our hospital,he took 3 rd-generation cephalosporin(cefixime) for 2 wk d... A 61-year-old male was admitted to our hospital due to right lower abdominal pain and watery diarrhea for 3 d.Beginning 3 wk before he arrived in our hospital,he took 3 rd-generation cephalosporin(cefixime) for 2 wk due to chronic left ear otitis media.Colonoscopic examination revealed yellowish patches of ulcerations and swelling covered with thick serosanguineous exudate in the cecum and ascending colon.After 7 d of oral metronidazole treatment,his symptoms completely disappeared.We report a case of localized pseudomembranous colitis in the cecum and ascending colon mimicking acute appendicitis associated with cefixime. 展开更多
关键词 ENTEROCOLITIS PSEUDOMEMBRANOUS APPENDICITIS ABDOMEN acute diarrhea CEFIXIME
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Acute hepatitis associated with increased atypical lymphocyte
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作者 Hai-Yan Sun Hai-Jiang Tong Da-Wei Cui 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS CSCD 2021年第5期508-510,共3页
To the Editor:Hepatitis A and hepatitis E are acute infectious diseases caused by hepatitis A virus(HAV)and hepatitis E virus(HEV),which are mainly transmitted through the fecal-oral route[1].The early clinical sympto... To the Editor:Hepatitis A and hepatitis E are acute infectious diseases caused by hepatitis A virus(HAV)and hepatitis E virus(HEV),which are mainly transmitted through the fecal-oral route[1].The early clinical symptoms of patients with hepatitis A or E are nonspecific,including fever,chills,abdominal pain,diarrhea,and rash[2]. 展开更多
关键词 HEPATITIS acute diarrhea
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Research progress of autophagy in acute lung injury induced by multiple factors
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作者 Qiu-Cheng Li Qi Li +3 位作者 Pan-Hong Jia Shao-Ning Li Xiao-Man Xiong Xiang-Dong Zhou 《Journal of Hainan Medical University》 2022年第15期64-70,共7页
Autophagy is a highly conserved catabolic process, involving the degradation of cellular components, including damaged organelles, denatured proteins and various pathogens. It is a defense and stress mechanism for mai... Autophagy is a highly conserved catabolic process, involving the degradation of cellular components, including damaged organelles, denatured proteins and various pathogens. It is a defense and stress mechanism for maintaining cell and tissue homeostasis. More and more evidences show that autophagy is closely related to many diseases. Acute lung injury is caused by intrapulmonary or extrapulmonary factors, with hypoxia and low lung compliance as the main manifestations. At present, its pathogenesis is not clear. It is known that the imbalance of inflammatory response and oxidative stress mechanism are the important mechanisms of its occurrence. The inflammatory response caused by acute lung injury has been reported to involve a series of changes in autophagy expression. Autophagy may be protective or harmful in acute lung injury. This article will summarize the respective roles of autophagy in acute lung injury caused by infectious factors (such as pathogen infection, lipopolysaccharide, sepsis) and non-infectious factors (acute pancreatitis, chlorine poisoning), so as to provide new ideas and strategies for better prevention of acute lung injury. 展开更多
关键词 AUTOPHAGY acute lung injury Infectious factors non-infectious factors
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小儿肠胃康颗粒联合蒙脱石散剂辅助治疗儿童急性细菌性腹泻病的疗效
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作者 徐惠 顾岚 《儿科药学杂志》 CAS 2024年第8期44-48,共5页
目的:探讨小儿肠胃康颗粒联合蒙脱石散剂辅助治疗儿童急性细菌性腹泻病的临床疗效。方法:选取2021年3月至2022年2月我院门诊收治的96例急性细菌性腹泻病患儿按简单随机化分组法分为对照组和联合组各48例。两组患儿均给予对症治疗(依据... 目的:探讨小儿肠胃康颗粒联合蒙脱石散剂辅助治疗儿童急性细菌性腹泻病的临床疗效。方法:选取2021年3月至2022年2月我院门诊收治的96例急性细菌性腹泻病患儿按简单随机化分组法分为对照组和联合组各48例。两组患儿均给予对症治疗(依据细菌培养及药敏试验结果选择敏感性抗菌药物、调整饮食结构、纠正电解质紊乱及菌群失调等),在此基础上,对照组给予蒙脱石散剂治疗,联合组在对照组治疗基础上给予小儿肠胃康颗粒,疗程为2周。比较两组患儿胃肠道不适症状改善时间,检测治疗前后两组患儿血清胃肠激素及免疫功能变化情况,统计不良反应发生情况。结果:治疗后,联合组治疗总有效率高于对照组(100.00%vs.91.67%),但差异无统计学意义(P>0.05),联合组疗效等级优于对照组(Z=2.691,P<0.05)。治疗后,两组患儿大便次数较同组治疗前减少(P均<0.01),联合组大便次数较对照组更少(t=5.771,P<0.05),且联合组腹泻、脱水、食欲减退、腹痛、腹胀缓解时间及大便性状改变时间均较对照组更短(P均<0.05)。治疗后,联合组胃动素(MOT)、胃泌素(GAS)水平低于对照组,生长抑素(SS)、P物质(SP)水平高于对照组,差异均有统计学意义(P均<0.05)。治疗后,联合组CD3^(+)、CD4^(+)及CD4^(+)/CD8^(+)水平高于对照组(P均<0.05)。两组患儿不良反应发生率比较差异无统计学意义(χ^(2)=0.546,P=0.460)。结论:小儿肠胃康颗粒联合蒙脱石散剂治疗儿童急性细菌性腹泻病整体价值优于单用蒙脱石散剂治疗,可缩短患儿胃肠道不适症状缓解时间,改善胃肠道动力学及免疫功能,安全性较高。 展开更多
关键词 急性细菌性腹泻病 小儿肠胃康颗粒 蒙脱石散剂 胃肠激素
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猪急性腹泻综合征冠状病毒S1蛋白抗体间接ELISA检测方法的建立
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作者 杨小曼 时洪艳 +8 位作者 张燎原 张鑫 张记宇 刘大凯 冯廷帅 曾苗苗 陈建飞 石达 冯力 《中国预防兽医学报》 CAS CSCD 北大核心 2024年第6期608-613,共6页
为建立猪急性腹泻综合征冠状病毒(SADS-CoV)S1蛋白抗体的间接ELISA检测方法,本研究通过构建重组真核分泌型表达质粒pCAGGS-S1-His并转染HEK293F悬浮细胞进行可溶性表达S1蛋白。转染重组质粒5 d后的细胞上清利用HisTrapTM Excel亲和层析... 为建立猪急性腹泻综合征冠状病毒(SADS-CoV)S1蛋白抗体的间接ELISA检测方法,本研究通过构建重组真核分泌型表达质粒pCAGGS-S1-His并转染HEK293F悬浮细胞进行可溶性表达S1蛋白。转染重组质粒5 d后的细胞上清利用HisTrapTM Excel亲和层析柱纯化,浓缩后的蛋白经SDS-PAGE、western blot鉴定显示获得了分子量约为130 ku且大于理论大小的重组S1蛋白,表明该蛋白为分泌表达且具有良好的翻译后修饰。利用获得的重组S1蛋白作为包被抗原,通过优化反应条件,初步建立了SADS-CoV S1蛋白抗体的间接ELISA检测方法。该方法与猪流行性腹泻病毒(PEDV)、猪传染性胃肠炎病毒(TGEV)、猪德尔塔冠状病毒(PDCoV)、猪轮状病毒(PoRV)和猪圆环病毒2型(PCV2)阳性血清均无交叉反应,仅与SADS-CoV阳性血清反应,表明该方法特异性较强;该方法检测SADS-CoV阳性血清,当稀释至13200时仍为阳性,表明该方法具有较高的敏感性;对4份阳性血清的批内和批间重复性试验的变异系数均小于10%,表明该方法具有良好的重复性和稳定性;利用该方法和间接免疫荧光试验(IFA)对50份临床样品检测,结果显示该间接ELISA检测到9份阳性样品,41份阴性样品;IFA检出5份阳性样品,45份阴性样品,二者的总符合率为92%。综上表明,本研究建立的间接ELISA检测方法能够特异、灵敏地检测SADS-CoV S1蛋白抗体,可以用于SADS-CoV灭活疫苗的免疫效果评价以及该病原的血清学流行病学调查和免疫水平监测,为SADS-CoV所致疫病的鉴别诊断和防控奠定基础。 展开更多
关键词 猪急性腹泻综合征冠状病毒 S1蛋白 间接ELISA方法 抗体检测
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非血缘脐血移植后肠道急性移植物抗宿主病的特点分析
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作者 涂美娟 张春丽 +4 位作者 邓莉 方冰 孙光宇 朱小玉 章新琼 《中国组织工程研究》 CAS 北大核心 2024年第25期3955-3959,共5页
背景:尽管非血缘脐血移植有望成为治愈恶性血液病的重要方法,但移植后肠道急性移植物抗宿主病方面的表现及临床特点仍然需要深入研究。目的:分析非血缘脐血移植后发生肠道急性移植物抗宿主病的临床特点。方法:2016年12月至2020年12月中... 背景:尽管非血缘脐血移植有望成为治愈恶性血液病的重要方法,但移植后肠道急性移植物抗宿主病方面的表现及临床特点仍然需要深入研究。目的:分析非血缘脐血移植后发生肠道急性移植物抗宿主病的临床特点。方法:2016年12月至2020年12月中国科学技术大学附属第一医院血液科造血干细胞移植亚专科668例恶性血液病患者接受非血缘脐血移植治疗,其中138例发生肠道急性移植物抗宿主病,男性76例,女性62例,移植时中位年龄13(1-62)岁。所有患者采取清髓性不含抗人胸腺细胞球蛋白方案进行预处理,以及采用环孢素A联合霉酚酸酯预防移植物抗宿主病。结果与结论:①非血缘脐血移植后肠道急性移植物抗宿主病患者均出现不同程度的腹泻,粪便为黄绿色以及黄褐色水样便或者黏液便,其中53例(38.4%)患者出现血便,82例(57.9%)患者伴有皮肤受累,18例(13.0%)患者继发肠道细菌感染,90例(65.2%)患者合并巨细胞病毒血症;②进一步比较1-2级肠道急性移植物抗宿主病(70例,50.7%)与3-4级肠道急性移植物抗宿主病(68例,49.3%)患者的临床特点,发现3-4级肠道急性移植物抗宿主病患者年龄大于1-2级肠道急性移植物抗宿主病患者(P<0.001),更易合并巨细胞病毒血症(P=0.035),腹泻持续时间更长(P=0.00),住院时间也明显增加(P<0.001),而两组患者在性别、移植前疾病状态、供受者HLA匹配度、疾病诊断、合并皮肤急性移植物抗宿主病、继发肠道感染率等方面无显著差异;③结果表明:非血缘脐血移植后肠道急性移植物抗宿主病的临床特点比较复杂,严重影响患者的预后和生活质量,需要及早识别,精准治疗。 展开更多
关键词 非血缘脐血移植 急性移植物抗宿主病 肠道急性移植物抗宿主病 腹泻
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猪急性腹泻综合征冠状病毒S蛋白多克隆抗体的制备及在检测该病毒感染中的应用
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作者 刘大凯 韩郁茹 +8 位作者 张记宇 张燎原 冯廷帅 杨小曼 曾苗苗 时洪艳 秦毅斌 石达 冯力 《中国预防兽医学报》 CAS CSCD 北大核心 2024年第5期499-504,共6页
为制备猪急性腹泻综合征冠状病毒(SADS-CoV)纤突蛋白(S)的多克隆抗体(PAb),本研究经PCR扩增SADS-Co V S蛋白S1亚基C端结构域(S1-CTD)基因片段(384 bp),并将其克隆至原核表达载体p GEX-6p-1中,构建重组质粒p GEX-6p-1-S1-CTD,经双酶切和... 为制备猪急性腹泻综合征冠状病毒(SADS-CoV)纤突蛋白(S)的多克隆抗体(PAb),本研究经PCR扩增SADS-Co V S蛋白S1亚基C端结构域(S1-CTD)基因片段(384 bp),并将其克隆至原核表达载体p GEX-6p-1中,构建重组质粒p GEX-6p-1-S1-CTD,经双酶切和测序鉴定正确后,转化大肠杆菌BL21(DE3)感受态细胞,利用IPTG诱导表达,通过western blot鉴定重组S1-CTD蛋白(rS1-CTD)的表达及反应原性。结果显示,r S1-CTD以包涵体的形式表达,在40 ku处出现特异性条带。诱导表达后的r S1-CTD经不同浓度尿素重悬并超声离心,SDS-PAGE检测后切胶纯化,得到纯化的重组蛋白。利用BCA试剂盒测得蛋白的浓度为33μg/m L。将该重组蛋白乳化后经3次免疫新西兰大白兔,并在3免一周后采血,分离血清获得S1-CTD蛋白PAb。将SADS-Co V感染Vero E6细胞24 h后,以获得的兔PAb为一抗,分别采用western blot和间接免疫荧光试验(IFA)检测该PAb的反应原性。Western blot结果显示,在约250 ku处出现特异性条带,而阴性对照组无该条带;IFA结果显示,SADS-Co V感染的细胞中出现绿色荧光,而阴性对照细胞无绿色荧光。将SADS-Co V感染仔猪的回肠组织制备病理切片,以制备的PAb为一抗,通过免疫组织化学(IHC)检测SADS-Co V的抗原。结果显示,该组织切片中出现棕色阳性信号,而阴性对照仔猪回肠组织切片则无该棕色信号。表明该PAb可与感染SADS-Co V的仔猪回肠组织中的相应抗原发生特异性免疫反应。综上所述,本实验制备的S1-CTD蛋白PAb具有良好的反应原性和免疫原性,可以用于western blot、IFA、IHC检测体内外SADS-Co V的感染,为后续SADS-Co V检测方法的建立及S蛋白生物学功能的研究奠定基础。 展开更多
关键词 猪急性腹泻综合征冠状病毒 S蛋白 原核表达 多克隆抗体 初步应用
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以消化道症状首发的系统性红斑狼疮误诊原因探析 被引量:1
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作者 耿献辉 边绪强 +5 位作者 王雪莲 常书振 张洋洋 王智锋 冯海龙 黄锦 《临床误诊误治》 CAS 2024年第4期1-5,共5页
目的分析以消化道症状为首发表现的系统性红斑狼疮(SLE)的误诊原因,并总结防范误诊措施。方法回顾性分析2013年12月—2023年9月曾误诊的3例SLE的临床资料。结果3例均以消化道症状为首发表现就诊。1例误诊为急性胃炎、肠梗阻,1例误诊为... 目的分析以消化道症状为首发表现的系统性红斑狼疮(SLE)的误诊原因,并总结防范误诊措施。方法回顾性分析2013年12月—2023年9月曾误诊的3例SLE的临床资料。结果3例均以消化道症状为首发表现就诊。1例误诊为急性胃炎、肠梗阻,1例误诊为感染性腹泻、急性胃肠炎、胃肠道痉挛,1例误诊为急性肠炎。误诊时间7~30 d。3例入院后经追问病史、详细查体,完善血液免疫学指标、肾穿刺病理学检查后明确诊断为SLE,给予糖皮质激素治疗后症状缓解。3个月后随访症状消失。结论SLE临床表现多样,以消化道症状首发的早期SLE不易诊断,临床医师应提高警惕,减少或避免误诊误治。 展开更多
关键词 红斑狼疮 系统性 腹痛 腹泻 误诊 急性胃肠炎 肠梗阻 抗体 抗核
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Small intestine angioleiomyoma as a rare cause of perforation:A case report
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作者 Teng-Yuan Hou Wei-Juo Tzeng Pei-Hang Lee 《World Journal of Clinical Cases》 SCIE 2024年第12期2116-2121,共6页
BACKGROUND Angioleiomyoma is a rare and benign stromal tumor typically found in subcutaneous tissue.It rarely occurs in the gastrointestinal tract.Among the reported cases,the most common complication was gastrointest... BACKGROUND Angioleiomyoma is a rare and benign stromal tumor typically found in subcutaneous tissue.It rarely occurs in the gastrointestinal tract.Among the reported cases,the most common complication was gastrointestinal bleeding.Perforation has only been reported as a complication in the last few decades.CASE SUMMARY This case report detailed the discovery of intestinal angioleiomyoma in a 47-yearold male presenting with abdominal pain that had persisted for 3 d.After suspecting hollow organ perforation,surgical intervention involving intestinal resection and anastomosis was performed.CONCLUSION The report underscores the significance of early surgical intervention in effectively treating angioleiomyoma while emphasizing the pivotal role of timely and appropriate measures for favorable outcomes. 展开更多
关键词 ANGIOLEIOMYOMA Intestinal perforation ABDOMEN acute diarrhea Case report
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中国肾脏移植受者消化系统并发症临床诊疗指南
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作者 中华医学会器官移植学分会 杨猛 +3 位作者 秦文瀚 王卫黎 李有赞 赵洪雯 《器官移植》 CAS CSCD 北大核心 2024年第4期497-508,共12页
肾脏移植受者消化系统并发症的诊治关系患者长期存活及生存质量,需要高度关注,为进一步规范其诊断与治疗,中华医学会器官移植学分会发起制订《中国肾脏移植受者消化系统并发症临床诊疗指南》,并组织器官移植学和相关学科专家,依据现有... 肾脏移植受者消化系统并发症的诊治关系患者长期存活及生存质量,需要高度关注,为进一步规范其诊断与治疗,中华医学会器官移植学分会发起制订《中国肾脏移植受者消化系统并发症临床诊疗指南》,并组织器官移植学和相关学科专家,依据现有临床研究、系统评价、病例研究、专家共识和指南等,总结近年来国内外在肾脏移植受者消化系统并发症诊治方面的新进展,经过多次研讨达成一致意见后撰写成文。全文围绕11个临床问题,形成16条推荐意见,使用2009版牛津大学循证医学中心的证据分级与推荐强度标准对每个临床问题的证据质量和推荐强度进行分级,以期为肾脏移植受者消化系统并发症的诊疗提供参考,全面提升临床医师对消化系统并发症的管理能力,造福移植受者。 展开更多
关键词 肾脏移植 消化系统并发症 腹泻 消化道出血 急性胰腺炎 炎症性肠病 肠道菌群失衡 免疫抑制药
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牡荆水提物对蓖麻油腹泻小鼠的治疗作用研究
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作者 唐兴刚 罗胜军 +5 位作者 袁明贵 田雅 舒柄垚 杨希 李跃龙 向蓉 《中国畜牧兽医》 CAS CSCD 北大核心 2024年第2期799-808,共10页
[目的]研究牡荆水提物对蓖麻油致小鼠腹泻的治疗作用,评价牡荆提取物的抗腹泻功效,为开发新型天然药物或植物提取物饲料添加剂提供理论依据。[方法]选取48只18~22 g SPF级昆明小鼠,随机分为6组:对照组、模型组、洛哌丁胺组及牡荆水提物... [目的]研究牡荆水提物对蓖麻油致小鼠腹泻的治疗作用,评价牡荆提取物的抗腹泻功效,为开发新型天然药物或植物提取物饲料添加剂提供理论依据。[方法]选取48只18~22 g SPF级昆明小鼠,随机分为6组:对照组、模型组、洛哌丁胺组及牡荆水提物高、中、低剂量组,每组8只,雌雄各半。牡荆水提物高、中、低剂量组小鼠灌胃16、8、4 g/kg BW牡荆水提物,对照组和模型组小鼠灌胃等剂量的生理盐水,洛哌丁胺组小鼠灌胃5 mg/kg BW洛哌丁胺,连续灌胃5 d。第5天给药后0.5 h,模型组、洛哌丁胺组及牡荆水提物高、中、低剂量组小鼠灌胃0.5 mL蓖麻油灌胃造模,对照组灌胃等量生理盐水。造模后的小鼠单笼单只饲喂。连续4 h观察小鼠腹泻情况,4 h后小鼠采血并断颈处死,每组随机取4只小鼠的肝脏、小肠各两份,一份制作组织切片;另一份用以提取RNA,检测空肠通道蛋白和肝脏急性期蛋白mRNA表达情况。[结果]模型组小鼠腹泻评分和腹泻指数均极显著高于对照组(P<0.01),说明蓖麻油腹泻模型造模成功。与模型组相比,洛哌丁胺组和牡荆水提物高剂量组小鼠腹泻评分和腹泻指数均极显著或显著降低(P<0.01;P<0.05);牡荆水提物高剂量组小鼠血清中白细胞介素1β(IL-1β)、IL-6、IL-10含量均显著或极显著降低(P<0.05;P<0.01)。肝脏组织病理结果显示,牡荆水提物高、中、低剂量组小鼠肝索结构清晰,肝细胞排列紧密,仅少量肝细胞轻度肿胀,并伴少量炎性细胞浸润。肠道组织病理结果显示,牡荆水提物高、中、低剂量组小鼠空肠黏膜层、肌层、浆膜层均清晰可见,黏膜层绒毛上皮内见大量空泡,但均未见明显坏死或炎症反应。与模型组相比,牡荆水提物高剂量组小鼠空肠中NHE8、NHE3、AQP3、AQP4表达量均无显著差异(P>0.05),NHE2表达量显著降低(P<0.05),急性期蛋白TRF和CRP表达量均显著降低(P<0.05)。[结论]牡荆水提物对蓖麻油导致的小鼠腹泻模型具有较好的治疗作用,对肝脏和小肠黏膜具有一定的保护作用,作用机制可能与其降低血清中IL-6、IL-10含量,以及在一定程度上降低NHE2表达、抑制TRF和CRP的表达有关。 展开更多
关键词 牡荆水提物 腹泻 炎症因子 通道蛋白 急性期蛋白
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