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Protection of Citrullus colocynthis Fruit Extracts on Carbon Tetrachloride-induced and Bacillus Calmette-Guerin plus Lipopolysaccharide-induced Hepatotoxicity in Mice 被引量:1
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作者 YANG Wei-jun GU Zheng-yi +6 位作者 TURSUN Dilnur CHEN Bo HASIMU Hamulati LIU Chong HE Jiang XU Lei MAO Yan 《Chinese Herbal Medicines》 CAS 2013年第3期205-211,共7页
Objective To investigate the hepatoprotective activities of the extracts from Citrullus colocynthis(ECC),a native plant used as traditional Uigur Medicine on acute liver injury in mice.Methods The activities of ECC of... Objective To investigate the hepatoprotective activities of the extracts from Citrullus colocynthis(ECC),a native plant used as traditional Uigur Medicine on acute liver injury in mice.Methods The activities of ECC of petroleum ether(ECCPE),chloroform(ECCC),ethyl acetate(ECCEA),n-butyl alcohol(ECCBA),and water(ECCW) were evaluated in vivo using two experimental models,carbon tetrachloride(CCl4)- and bacillus calmette-guerin(BCG) plus lipopolysaccharide(LPS)-induced acute hepatotoxicity in mice.The contents of aspartate aminotransferase(AST) and alanine aminotransferase(ALT) in serum were determined and the liver histological examination was carried out,respectively.Results The pretreatment with ECC for 7 d obviously reduced the impact of CCl4toxicity on the serum markers of liver damage,ECCEA and ECCC with a significant difference of AST(P < 0.01,0.05,respectively) and ALT(P < 0.05,0.01,respectively).The protective activity was reconfirmed against BCG + LPS-induced injury and the serum enzymatic levels were obviously elevated,for ECCEA and ECCC with a significant difference of AST(P < 0.05,0.01,respectively) and ALT(P < 0.01,0.05,respectively).Conclusion That ECCEA and ECCC are the potent hepatoprotective extracts that could protect liver against the acute injury,and this ability might be attributed to their hepatoprotective potentials. 展开更多
关键词 bacillus calmette-guerin plus lipopolysaccharide carbon tetrachloride Citrullus colocynthis hepatoprotective activities Uigur Medicine
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The natural course of bacillus Calmette-Guerin induced bladder lesions:A long-term follow-up study and systematic review
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作者 Chong Ma Shuxiong Zeng +5 位作者 Lihe Dai Huan Han Ruixiang Song Jinshan Xu Xing Ai Chuanliang Xu 《Asian Journal of Urology》 CSCD 2023年第3期356-363,共8页
Objective:Bacillus Calmette-Gue´rin(BCG)instillation is the standard adjuvant treatment for intermediate-and high-risk non-muscle-invasive bladder cancer after transurethral resection.Nevertheless,its toxicity of... Objective:Bacillus Calmette-Gue´rin(BCG)instillation is the standard adjuvant treatment for intermediate-and high-risk non-muscle-invasive bladder cancer after transurethral resection.Nevertheless,its toxicity often causes bladder complications.On follow-up cystoscopy,post-BCG bladder lesions can be pathologically benign,urothelial carcinoma recurrence,or other types of bladder malignancy.Only a small number of case reports have been published on post-BCG bladder lesions.Their clinical features,natural course,and management remain unknown.Methods:We retrospectively studied cystoscopic videos and medical records of BCG-treated bladder cancer patients at our center.During a long-term follow-up,we took biopsies on tumor-like lesions and described their changes.In addition,we summarized previous studies on post-BCG bladder lesions by systematic literature searching and review.Results:We described a series of three cases with post-BCG bladder lesions mimicking tumor recurrence from a total of 38 cases with follow-up data for more than 5 years.Those lesions could last,grow,or disappear spontaneously,and remain pathological benign for years.In systematic review,we identified and analyzed a total of 15 cases with post-BCG bladder lesions with detailed clinical information.Eleven of the 15 were benign and have a good prognosis with nephrogenic adenoma being the most common pathological type.Conclusion:Based on previous studies and our experience,benign lesions after BCG instillation cannot distinguish with cancer recurrence by cystoscopy alone,even under narrow band imaging mode.Nonetheless,given most of them have a good prognosis,random biopsy or transurethral resection might be spared in the patients with long-term negative biopsy and urine cytology. 展开更多
关键词 bacillus calmette-guerin Bladder cancer Side effects CYSTOSCOPY FOLLOW-UP
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Intravesical bacillus Calmette-Guerin(BCG)in treating non-muscle invasive bladder cancer—analysis of adverse effects and effectiveness of two strains of BCG(Danish 1331 and Moscow-I) 被引量:2
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作者 Yuvaraja B.Thyavihally Preetham Dev +6 位作者 Santosh Waigankar Abhinav Pednekar Nevitha Athikari Abhijit Raut Archan Khandekar Naresh Badlani Ashishkumar Asari 《Asian Journal of Urology》 CSCD 2022年第2期157-164,共8页
Objective:To compare the differences in adverse effects and efficacy profile between bacillus Calmette-Guerin(BCG)Danish 1331 and BCG Moscow-I strain in management of non-muscle invasive bladder cancer.Methods:Clinica... Objective:To compare the differences in adverse effects and efficacy profile between bacillus Calmette-Guerin(BCG)Danish 1331 and BCG Moscow-I strain in management of non-muscle invasive bladder cancer.Methods:Clinical data of 188 cases of non-muscle invasive bladder cancer treated with BCG between January 2008 and December 2018 in our institute were collected prospectively and analysed retrospectively,and 114 patients who completed a minimum of 12 months of follow-up were analysed.Patient and tumor characteristics,strain of BCG,adverse effects,and tumor progression were included for analysis.Intravesical BCG was instilled in intermediate-and high-risk patients.Six weeks of induction BCG,followed by three weekly maintenance BCG at 3,6,12,18,and 24 months was advised in high-risk patients.Results:Overall 68 patients received BCG Danish 1331 strain and 46 patients received Moscow-I strain.Patient and tumor characteristics were well balanced between the two groups.The median follow-up period was 42.5 months and 34.5 months in Danish 1331 and Moscow-I groups,respectively.Adverse events like dropout rate,antitubercular treatment requirement,and need of cystectomy were higher in Moscow-I group(n=31,67.4%)when compared to Danish 1331 strain(n=33,48.5%)(p=0.046).On direct comparison between Danish 1331 and Moscow-I strain,there was similar 3-year recurrence-free survival(80.0%vs.72.9%)and 3-year progression-free survival(96.5%vs.97.8%).Conclusion:Study results suggest no significant differences between Danish 1331 and Moscow-I strain in recurrence-free survival and progression-free survival,but a significantly higher incidence of moderate to severe adverse events in BCG Moscow-I strain. 展开更多
关键词 Adjuvant bacillus calmette-guerin bacillus calmette-guerin adverse effects Danish 1331 strain Intravesical therapy Moscow-I strain Non-muscle invasive bladder cancer
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Multi-organ failure with atypical liver granulomas following intravesical Bacillus Calmette-Guerin instillation
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作者 Michail Kaklamanos Georgia Hardavella +4 位作者 Rodoula Trigidou Georgios Dionellis Nikolaos Paissios Nikolaos Koulouris Constantin Goritsas 《World Journal of Hepatology》 CAS 2011年第3期79-82,共4页
Bacillus Calmette-Guerin(BCG) intravesical instillation has been adopted in the treatment of patients with superficial bladder cancer.BCG-induced disseminated infection,though rare,has been associated with the histolo... Bacillus Calmette-Guerin(BCG) intravesical instillation has been adopted in the treatment of patients with superficial bladder cancer.BCG-induced disseminated infection,though rare,has been associated with the histological finding of epithelioid granulomas in different organs,including the liver.We report the case of an adult patient with multi-organ failure,who developed sepsis,acute respiratory failure and acute hepatic failure with encephalopathy whose liver biopsy confirmed the presence of atypical,granulomatous-like lesions.Recovery was observed only after empirical therapy for Mycobacterium bovis with isoniazid,rifampicin,ethambutol and steroids was introduced.This case highlights the importance of a thorough patient assessment in order to exclude other more common causes of hepatic granulomas and to confirm diagnosis.Histological findings may be non-specific when the liver is involved in BCGinduced disseminated infection. 展开更多
关键词 bacillus calmette-guerin MULTI-ORGAN failure Hepatic GRANULOMAS 'bacillus calmette-guerin-itis'
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乳果糖-凝结芽孢杆菌合生素通过Toll样受体4/髓样分化因子88/核因子-κB信号通路缓解脂多糖诱导的断奶仔猪肠道炎症
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作者 木颖琦 赵祖艳 +2 位作者 杨运南 姚文 郑卫江 《动物营养学报》 CAS CSCD 北大核心 2024年第1期551-563,共13页
本试验旨在研究乳果糖-凝结芽孢杆菌合生素对脂多糖(LPS)诱导的断奶仔猪肠道炎症缓解作用的分子机制。试验选取24头健康、体重接近的27~28日龄“杜×长×大”三元杂交断奶阉公猪,随机分为4组,每组6个重复,每个重复1头猪。对照组... 本试验旨在研究乳果糖-凝结芽孢杆菌合生素对脂多糖(LPS)诱导的断奶仔猪肠道炎症缓解作用的分子机制。试验选取24头健康、体重接近的27~28日龄“杜×长×大”三元杂交断奶阉公猪,随机分为4组,每组6个重复,每个重复1头猪。对照组(CON组)和LPS组饲喂基础饲粮,金霉素组(CTC组)饲喂基础饲粮+75 mg/kg的金霉素,合生素组(SYN组)饲喂基础饲粮+10 g/kg的乳果糖和2×109 CFU/kg的凝结芽孢杆菌。试验期32 d。试验结束时,对LPS组、CTC组和SYN组仔猪腹腔注射100μg/kg BW LPS,CON组注射相同剂量的生理盐水;注射4 h后屠宰,采集血清和空肠黏膜样本,测定炎症细胞因子含量及Toll样受体4(TLR4)/髓样分化因子88(MyD88)/核因子-κB(NF-κB)信号通路相关基因和蛋白表达。结果表明:1)与CON组相比,LPS刺激不仅显著提高血清促炎因子白细胞介素-1β(IL-1β)、白细胞介素-6(IL-6)、白细胞介素-8(IL-8)、白细胞介素-12(IL-12)、干扰素-γ(IFN-γ)和肿瘤坏死因子-α(TNF-α)以及抗炎因子白细胞介素-10(IL-10)含量(P<0.05),还显著提高空肠黏膜促炎因子IL-6、IL-12和IFN-γ以及抗炎因子白细胞介素-4(IL-4)、IL-10和转化生长因子-β1(TGF-β1)含量(P<0.05)。此外,与CON组相比,LPS刺激还显著提高空肠黏膜TNF-α、IL-1β与IL-10 mRNA相对表达量(P<0.05),且显著提高空肠黏膜TLR4、MyD88和NF-κB mRNA和蛋白相对表达量(P<0.05)。2)与LPS组相比,CTC组和SYN组血清IL-1β和IL-10以及空肠黏膜IL-6、IL-12、IL-4和IL-10含量显著降低(P<0.05),空肠黏膜TGF-β1含量显著提高(P<0.05),空肠黏膜TNF-α、IL-1β与IL-10 mRNA相对表达量显著降低(P<0.05),空肠黏膜NF-κB mRNA相对表达量以及TLR4和NF-κB蛋白相对表达量显著降低(P<0.05);SYN组血清IL-6、IL-8、IL-12和TNF-α以及空肠黏膜IL-1β含量显著降低(P<0.05),空肠黏膜TLR4和MyD88 mRNA相对表达量以及MyD88蛋白相对表达量显著降低(P<0.05)。综上所述,在无抗饲粮中添加乳果糖-凝结芽孢杆菌合生素替代金霉素可通过抑制断奶仔猪空肠黏膜TLR4/MyD88/NF-κB信号通路,降低TNF-α和IL-1βmRNA相对表达量,改善空肠和血清炎症细胞因子水平,从而缓解LPS诱导的应激反应,提高断奶仔猪的抗应激能力。 展开更多
关键词 乳果糖 凝结芽孢杆菌 断奶仔猪 脂多糖 血清 空肠
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Effects of Bacillus Calmette-Guerin on immunometabolism,microbiome and liver diseases
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作者 Muhammad Umair Ijaz Farzam Vaziri Yu-Jui Yvonne Wan 《Liver Research》 CSCD 2023年第2期116-123,共8页
Metabolic diseases have overtaken infectious diseases as the most serious public health issue and economic burden in most countries.Moreover,metabolic diseases increase the risk of having infectious diseases.The treat... Metabolic diseases have overtaken infectious diseases as the most serious public health issue and economic burden in most countries.Moreover,metabolic diseases increase the risk of having infectious diseases.The treatment of metabolic disease may require a long-term strategy of taking multiple medications,which can be costly and have side effects.Attempts to expand the therapeutic use of vaccination to prevent or treat metabolic diseases have attracted significant interest.A growing body of evidence indicates that Bacillus Calmette-Guerin(BCG)offers protection against non-infectious diseases.The non-specific effects of BCG occur likely due to the induction of trained immunity.In this regard,understanding how BCG influences the development of chronic metabolic health including liver diseases would be important.This review focuses on research on BCG,the constellation of disorders associated with metabolic health issues including liver diseases and diabetes as well as how BCG affects the gut microbiome,immunity,and metabolism. 展开更多
关键词 bacillus calmette-guerin(BCG) Liver disease VACCINATION Gut microbiota Metabolic diseases Trained immunity DIABETES
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枯草芽孢杆菌对脂多糖应激肉仔鸡肠道免疫、肠道组织形态以及肠道屏障的影响 被引量:2
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作者 秦士贞 杨敏敏 +3 位作者 任志雄 李金录 唐德富 史兆国 《畜牧兽医学报》 CAS CSCD 北大核心 2023年第11期4676-4690,共15页
本试验旨在研究枯草芽孢杆菌(BS)对脂多糖(LPS)应激肉仔鸡肠道免疫、肠道组织形态和肠道屏障的影响。选用1日龄健康爱拔益加(AA)肉仔鸡240只(公母各占1/2),采用2×2两因子完全随机试验设计,两因子分别为:日粮处理(基础日粮或基础日... 本试验旨在研究枯草芽孢杆菌(BS)对脂多糖(LPS)应激肉仔鸡肠道免疫、肠道组织形态和肠道屏障的影响。选用1日龄健康爱拔益加(AA)肉仔鸡240只(公母各占1/2),采用2×2两因子完全随机试验设计,两因子分别为:日粮处理(基础日粮或基础日粮+200 g·t^(-1) BS的试验日粮)和应激处理(口腔灌服生理盐水或LPS)。即试验分为:1)基础日粮+生理盐水组;2)基础日粮+LPS组;3)试验日粮+生理盐水;4)试验日粮+LPS组,共计4个组,每组6个重复,每个重复10只鸡,试验期为28 d,分为3个阶段,包括应激前期(1~14 d)、LPS应激期(15~21 d)和恢复期(22~28 d)。结果表明:1)在第21天,BS日粮与LPS应激对十二指肠白细胞介素-1β(Interleukin-1β,IL-1β)、Toll样受体4(Toll like rececptor 4,TLR4)mRNA的表达量有显著的交互作用(P<0.05),对空肠髓样分化因子88(Myeloid differentiation factor 88,MyD88)mRNA的表达量有显著性交互作用(P<0.05),对回肠肿瘤坏死因子-α(Tumor necrosis actor-α,TNF-α)mRNA的表达量有显著性交互作用(P<0.05)。在无LPS应激条件下,BS日粮对上述指标均无显著影响(P>0.05);在LPS应激条件下,BS显著下调以上基因的mRNA的表达量(P<0.05)。2)BS日粮与LPS应激对21 d十二指肠VH及V/C的比值和空肠CD有显著性交互作用(P<0.05)。不管有无LPS应激,BS日粮均可显著提高十二指肠VH及V/C的比值(P<0.05);在无LPS应激条件下,BS日粮显著降低了空肠CD(P<0.05);在LPS应激条件下,BS日粮对各肠段CD无显著影响(P>0.05)。在第28天,BS日粮与LPS应激对空肠VH和V/C的比值有显著性交互作用(P<0.05)。无LPS应激条件下,BS日粮对空肠VH和V/C的比值无显著影响(P>0.05);LPS应激条件下,BS日粮显著增加了空肠VH和V/C的比值(P<0.05)。3)LPS应激显著降低了21 d各肠段Claudin-1、Occludin、ZO-1和MUC2 mRNA的表达量(P<0.05)。BS日粮显著提高了十二指肠和Occludin、ZO-1和空肠Occludin、ZO-1及MUC2 mRNA的表达量(P<0.05)。结果显示,日粮中添加BS可显著降低小肠促炎细胞因子的表达,提高紧密连接蛋白Claudin-1、Occludin、Z O-1和MUC2 mRNA的表达量,增加肠道VH及V/C的比值,有效缓解了免疫应激对肠道形态结构的损伤,促进了小肠的生长发育,维持了肠道的健康。 展开更多
关键词 枯草芽孢杆菌 肉仔鸡 脂多糖 肠道屏障
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The Regulatory Effects of Polyporus Polysaccharide on the Nuclear Factor Kappa B Signal Pathway of Bladder Cancer Cells Stimulated by Bacillus Calmette-Guerin 被引量:12
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作者 危建安 曾星 +1 位作者 韩凌 黄羽 《Chinese Journal of Integrative Medicine》 SCIE CAS 2011年第7期531-536,共6页
Objective:To detect the effects of Polyporus polysaccharide(PPS),Bacillus Calmette-Guerin (BCG),and their combination on the nuclear factor kappa B(NF-κB)signaling pathway associated-gene expression and invest... Objective:To detect the effects of Polyporus polysaccharide(PPS),Bacillus Calmette-Guerin (BCG),and their combination on the nuclear factor kappa B(NF-κB)signaling pathway associated-gene expression and investigate the molecular mechanisms of the toxic-reducing effect of PPS in coordination with BCG against bladder cancer.Methods:After T739 cells were treated with PPS,BCG and their combination, the changes in mRNA and protein expression of inhibitor of kappa B kinase beta(IKKβ),NF-κB subunit p65 (NF-κB p65),intracellular adhesion molecule 1(ICAM1)and chemokine(C-c motif)ligand 2(CCL2)in bladder cancer cell line T739 were determined by relative quantitative real-time PCR,Western blot,and flow cytometry (FCM).NF-κB p65 DNA-binding activity in T739 cell was detected by biotinylated probe-ELISA,and NF-κB p65 nuclear expression in T739 cell was observed by immunohistochemistry.Results:Compared with the T739 control group,the mRNA expression of IKBKB(IKKβ),Rel A(NF-κB p65),ICAM1 and CCL2 in T739 cells treated with BCG were increased obviously(Ratio2.0),as well as the expression of IKKβ,CCL2 and ICAM1 proteins.Meanwhile,NF-κB p65 DNA-binding activity and NF-κB p65 nuclear expression in T739 cells treated with BCG were up-regulated significantly(P0.05).Compared with the control,the increased expression in T739 cells were simultaneously down-regulated after PPS treatment,except for ICAM1 protein expression.With cells treated with a combination of BCG and PPS,the expression of genes associated with the NF-κB signaling pathway,such as IKBKB,ICAM1 and CCL2,were all down-regulated compared to the BCG group,as well as Rel A mRNA expression,NF-κB p65 DNA-binding activity and NF-κB p65 nuclear expression.Conclusions: PPS could inhibit the over-activation of the NF-κB signaling pathway induced by BCG in bladder cancer cells and accordingly attenuate the adverse reactions to BCG therapy. 展开更多
关键词 Polyporus polysaccharide bacillus calmette-guerin bladder cancer nuclear factor kappa B signaling pathway
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Can intravesical bacillus Calmette-Guerin reduce recurrence in patients with non-muscle invasive bladder cancer? An update and cumulative meta-analysis 被引量:6
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作者 Jiangang Pan Mo Liu Xing Zhou 《Frontiers of Medicine》 SCIE CAS CSCD 2014年第2期241-249,共9页
Approximately 70% of newly diagnosed bladder tumors are non-muscle invasive bladder cancer (NMIBC). NMIBC accounts for approximately 80% of total bladder cancer cases. Bacillus Calmette-Guerin (BCG) instillation a... Approximately 70% of newly diagnosed bladder tumors are non-muscle invasive bladder cancer (NMIBC). NMIBC accounts for approximately 80% of total bladder cancer cases. Bacillus Calmette-Guerin (BCG) instillation and maintenance is considered as the standard adjuvant treatment for superficial bladder cancer. A number of randomized studies have focused on the benefit of maintenance therapy following initial BCG induction. To provide further insights into the effect of intravesical instillation on recurrence in patients with NMIBC, we analyzed this relationship by conducting an updated detailed meta-analysis. Evidence suggested that adjuvant intravesical BCG with maintenance treatment is significantly effective for the prophylaxis of tumor recurrence in patients with NMIBC. 展开更多
关键词 non-muscle invasive bladder cancer bacillus calmette-guerin (BCG) META-ANALYSIS
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益生菌对载鸭水体和产蛋性能的影响及其分子机制 被引量:12
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作者 应诗家 许爱红 +6 位作者 戴子淳 郗正林 何宗亮 匡伟 赵伟 吴云良 施振旦 《中国农业科学》 CAS CSCD 北大核心 2015年第11期2262-2269,共8页
【目的】研究饲粮添加芽孢杆菌和载鸭水体应用光合细菌对载鸭水体和鸭产蛋性能的影响及其分子机制。【方法】采用"地面平养+水池"养殖模式,以2×2因子试验设计,选择同批次连城白鸭和樱桃谷鸭杂交后代蛋鸭240只,随机分为4... 【目的】研究饲粮添加芽孢杆菌和载鸭水体应用光合细菌对载鸭水体和鸭产蛋性能的影响及其分子机制。【方法】采用"地面平养+水池"养殖模式,以2×2因子试验设计,选择同批次连城白鸭和樱桃谷鸭杂交后代蛋鸭240只,随机分为4组,每组6个重复,每个重复10只,每个重复独立一栏。两处理因子分别为饲粮添加有效活菌含量为8×107 cfu/kg的枯草芽孢杆菌和载鸭水体应用光合细菌至水体有效活菌含量为1.8×1012 cfu/m3。对照组为不应用芽孢杆菌和光合细菌,光合组为只应用光合细菌,芽孢组为只添加芽孢杆菌,联合组为既添加芽孢杆菌又应用光合细菌。预饲7 d,试验期120 d。试验期间统计每10 d的平均产蛋率、平均采食量和平均料蛋比;每10 d采集水样用于检测大肠杆菌和沙门+志贺氏菌数量;每15 d采集水样和血样用于检测内毒素浓度。试验结束时,采集新鲜粪样用于检测大肠杆菌和沙门+志贺氏菌数量;取十二指肠、空肠和回肠黏膜用于检测内毒素水平;取空肠、回肠和脾脏组织用于炎症和凋亡相关基因表达。试验鸭自由饮用池水、自由采食、自然光照。水体和血液内毒素、采食量、产蛋率、料蛋比、水体大肠杆菌和沙门+志贺氏菌数据采用重复测量的线性混合模型分析,LSD修正法多重比较。粪便微生物数量、肠道黏膜内毒素水平和组织基因表达数据采用单因子方差分析,Duncan法多重比较。【结果】芽孢杆菌和光合细菌不显著影响鸭采食量(P>0.05)、空肠Caspase-3和Bcl-2 m RNA表达(P>0.05)、回肠Bcl-2 m RNA表达(P>0.05)、以及脾脏IL-1βm RNA表达(P>0.05),但芽孢杆菌和光合细菌显著提高蛋鸭产蛋率(P<0.001),显著降低蛋鸭料蛋比(P<0.001)、载鸭水体(P<0.001)、十二指肠(P<0.01)和回肠(P<0.01)内毒素浓度、粪便大肠杆菌数(P<0.001)、空肠TLR4(P<0.05)和回肠Caspase-3(P<0.05)m RNA表达水平。采食量、产蛋率、料蛋比、水体大肠杆菌、沙门+志贺氏菌和内毒素水平存在显著的时间效应(P<0.001)。与芽孢组和联合组相比,对照组和光合组血液内毒素和粪便沙门+志贺氏菌数量显著提高,对照组空肠黏膜内毒素水平、载鸭水体沙门+志贺氏菌数量以及脾脏TNF-αm RNA表达水平显著提高。联合组水体大肠杆菌数量显著低于对照组、光合组和芽孢组。仅联合组回肠TLR4 m RNA表达水平显著低于对照组,脾脏IL-10m RNA表达水平显著高于对照组。【结论】芽孢杆菌和光合细菌可能通过降低载鸭水体革兰氏阴性菌数量和内毒素水平、降低肠道和血液内毒素浓度、降低炎症反应和肠道细胞凋亡,提高蛋鸭产蛋性能。 展开更多
关键词 蛋鸭 产蛋性能 光合细菌 芽孢杆菌 内毒素
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microRNA与结核病相互关系的研究进展 被引量:2
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作者 樊宇 杨春 +5 位作者 何永林 徐蕾 卢楠 穆柳青 张春燕 康月茜 《重庆医科大学学报》 CAS CSCD 北大核心 2015年第9期1167-1171,共5页
microRNA(miRNA)是一类广泛存在于各种生物体内的小分子非编码单链RNA,主要在转录后水平调控靶基因的表达。越来越多的证据表明它在细胞分化与沟通、机体发育、免疫反应等诸多方面都发挥着重要作用。尤其在疾病相关研究中,miRNA更是具... microRNA(miRNA)是一类广泛存在于各种生物体内的小分子非编码单链RNA,主要在转录后水平调控靶基因的表达。越来越多的证据表明它在细胞分化与沟通、机体发育、免疫反应等诸多方面都发挥着重要作用。尤其在疾病相关研究中,miRNA更是具有广泛的用途和美好的前景。本文主要针对miRNA的相关特性、与结核病(tuberculosis,TB)相互关系的研究进展以及应用前景等做综述。 展开更多
关键词 MICRORNA 结核病 结核分枝杆菌 bacillus calmette-guerin(BCG)
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黄芪多糖增强人外周血单个核细胞产生肿瘤坏死因子的研究 被引量:34
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作者 赵克胜 丁丽轩 +3 位作者 孔海燕 田淑媛 金伯泉 刘雪松 《中国中西医结合杂志》 CAS CSCD 北大核心 1993年第5期263-265,共3页
常规提取的黄芪多糖经液相色谱进一步分离后,发现其中分子量为20 000~25 000的组分,对正常人及肿瘤患者外周血单个核细胞(PBMC)在体外分泌肿瘤坏死因子(TNF)具有明显地促进作用。进一步将PBMC分离成粘附和非粘附细胞后发现,黄芪多糖的... 常规提取的黄芪多糖经液相色谱进一步分离后,发现其中分子量为20 000~25 000的组分,对正常人及肿瘤患者外周血单个核细胞(PBMC)在体外分泌肿瘤坏死因子(TNF)具有明显地促进作用。进一步将PBMC分离成粘附和非粘附细胞后发现,黄芪多糖的这一组分对二者分别产生TNF-α和TNF-β均有增强作用,表明对黄芪多糖的进一步研究将有利于其在肿瘤治疗中的应用。 展开更多
关键词 黄芪 多糖 肿瘤坏死因子 PBMC 细胞
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福建叶下珠抗小鼠免疫性肝损伤的实验研究 被引量:19
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作者 冯天保 田广俊 +4 位作者 李华 唐明增 陈培琼 王新华 张奉学 《中药新药与临床药理》 CAS CSCD 2005年第5期343-345,共3页
目的评价福建叶下珠对小鼠免疫性肝损伤的保护作用。方法48只NIH小鼠随机分为叶下珠高、低剂量组、联苯双酯组、正常对照组及模型组。于造模之日起,叶下珠高、低剂量组分别以20 g/kg、10 g/kg叶下珠药液灌胃,联苯双酯组以0.15 g/kg联苯... 目的评价福建叶下珠对小鼠免疫性肝损伤的保护作用。方法48只NIH小鼠随机分为叶下珠高、低剂量组、联苯双酯组、正常对照组及模型组。于造模之日起,叶下珠高、低剂量组分别以20 g/kg、10 g/kg叶下珠药液灌胃,联苯双酯组以0.15 g/kg联苯双酯药液灌胃,正常对照组及模型组每天给予等量生理盐水。每天灌胃1次,连用12 d。检测血清谷丙转氨酶(ALT)和肝、脾脏器指数,并做肝脏病理学检查。结果联苯双酯组、叶下珠高、低剂量组小鼠血清ALT、肝指数、脾指数值较模型组有不同程度的改善(P<0.05,P<0.01)。炎症坏死程度:5组间比较,差异有非常显著性意义(P<0.005);模型组与正常组、联苯双酯组、福建叶下珠高、低剂量组与模型组间两两比较,差异有显著性意义(P值均<0.05);联苯双酯组与福建叶下珠大、小剂量组间比较,差异无显著性意义(P>0.05)。结论福建叶下珠能显著降低血清转氨酶活力和肝脾脏器指数,对肝细胞坏死有一定的改善作用,具有较好的抗小鼠免疫性肝损伤作用。 展开更多
关键词 福建叶下珠 免疫性肝损伤 卡介苗 脂多糖 小鼠
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加味茵陈五苓散对免疫性肝损伤保护作用及其机理研究 被引量:24
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作者 马小娟 颉东升 何国梁 《时珍国医国药》 CAS CSCD 北大核心 2009年第9期2315-2318,共4页
目的观察加味茵陈五苓散对免疫性肝损伤的保护作用以阐明其药效和药物作用机理。方法采用卡介苗(BCG)+脂多糖(LPS)诱导小鼠免疫性肝损伤模型,观察本方对肝损伤小鼠血清谷丙转氨酶(ALT)及谷草转氨酶(AST)活性,脾、肝脏器系数,肝脏病理组... 目的观察加味茵陈五苓散对免疫性肝损伤的保护作用以阐明其药效和药物作用机理。方法采用卡介苗(BCG)+脂多糖(LPS)诱导小鼠免疫性肝损伤模型,观察本方对肝损伤小鼠血清谷丙转氨酶(ALT)及谷草转氨酶(AST)活性,脾、肝脏器系数,肝脏病理组织学损伤程度的影响,并检测小鼠肝组织匀浆丙二醛(MDA)、超氧化物歧化酶(SOD)的含量,血清一氧化氮(NO)含量及肿瘤坏死因子(TNF-α)的含量。结果加味茵陈五苓散和阳性对照药物五酯片均能显著降低BCG/LPS免疫性肝损伤小鼠血清中升高的ALT、AST水平;且加味茵陈五苓散中剂量降酶作用优于阳性对照组;对肝脾重量的增大有显著的抑制作用;组织病理检查结果显示本品中、高剂量可减轻肝组织坏死范围及程度,减少炎细胞浸润,有明显的保肝作用。同时发现中剂量药物可显著降低肝匀浆中升高的MDA水平,提高肝匀浆SOD水平,显著降低血清中升高的NO含量和TNF-α含量。结论加味茵陈五苓散对免疫性肝损伤具有保护作用,其机制可能与其直接清除自由基、降低脂质过氧化物水平、提高SOD活性、减少炎性细胞因子的产生和调节机体免疫功能等有关。 展开更多
关键词 加味茵陈五苓散 卡介苗(BCG) 脂多糖(LPS) 免疫性肝损伤
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抗IL-18单克隆抗体对小鼠免疫性肝损伤的作用研究 被引量:5
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作者 张英剑 王萍 +3 位作者 王湖荣 金建军 贾竹敏 付杰 《胃肠病学和肝病学杂志》 CAS 2005年第1期50-52,共3页
目的 探求抗IL- 18单克隆抗体对小鼠免疫性肝损伤的作用。方法 建造昆明小鼠免疫性肝损伤模型 ,腹腔注射抗IL -18单克隆抗体 ,ELISA法测定血清中IL - 18、IL - 1、TNF- α含量 ,肝组织HE、VanGieson染色观察病理组织形态。结果 抗IL... 目的 探求抗IL- 18单克隆抗体对小鼠免疫性肝损伤的作用。方法 建造昆明小鼠免疫性肝损伤模型 ,腹腔注射抗IL -18单克隆抗体 ,ELISA法测定血清中IL - 18、IL - 1、TNF- α含量 ,肝组织HE、VanGieson染色观察病理组织形态。结果 抗IL -18单克隆抗体组明显抑制了IL - 18、IL -1、TNF- α的升高 (P <0 . 0 5 ) ;抗IL - 18单克隆抗体组肝脏病理损害均不同程度减轻。结论 抗IL 18单克隆抗体能明显减轻免疫性肝损伤小鼠肝脏病理损害 ,对免疫性肝损伤起到了保护作用。 展开更多
关键词 IL-18 免疫性肝损伤 单克隆抗体 昆明小鼠 作用研究 肝脏病理 减轻 形态 损害
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岩藻糖对小鼠免疫性肝损伤的保护作用 被引量:9
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作者 肖瑶 李晓斐 丁虹 《食品科学》 EI CAS CSCD 北大核心 2017年第13期155-159,共5页
研究岩藻糖对卡介苗(Bacillus calmette-guerin,BCG)和脂多糖(lipopolysaccharide,LPS)诱导的免疫性肝损伤小鼠的保护作用。将30只小鼠分为5组,每组6只,第1天除正常组外,其余小鼠尾静脉注射BCG;第2天岩藻糖低、高剂量组分别灌胃20、100 ... 研究岩藻糖对卡介苗(Bacillus calmette-guerin,BCG)和脂多糖(lipopolysaccharide,LPS)诱导的免疫性肝损伤小鼠的保护作用。将30只小鼠分为5组,每组6只,第1天除正常组外,其余小鼠尾静脉注射BCG;第2天岩藻糖低、高剂量组分别灌胃20、100 mg/(kg·d)岩藻糖,阳性对照组灌胃0.1 mg/(kg·d)地塞米松,正常组和模型组小鼠灌胃等量蒸馏水,连续给药14 d,末次灌胃2 h后,除正常组外其余小鼠尾注射LPS;计算小鼠脏器指数,用试剂盒测定血清中谷丙转氨酶(alanine aminotransferase,ALT)、谷草转氨酶(aspartate aminotransferase,AST)、超氧化物歧化酶(superoxide dismutase,SOD)及过氧化氢酶(catalase,CAT)活力,检测丙二醛(malondialdehyde,MDA)、NO、肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)、白细胞介素-1β(interleukin-1β,IL-1β)含量;肝组织苏木精-伊红染色并观察;Western blot法测定肝组织核浆分离后核因子-κB(nuclear factor-κB,NF-κB)、核因子-κB抑制剂α(inhibitor of nuclear factor-κBα,IκBα)含量。结果显示,与模型组相比,高剂量岩藻糖能显著减少脏器指数(P<0.05),显著降低ALT、AST活力和MDA、NO、TNF-α、IL-1β、NF-κB含量(P<0.05),显著提高SOD、CAT活力及IκBα含量(P<0.05);病理切片显示肝脏病变得到逆转,与正常组接近。实验结果表明岩藻糖对免疫性肝损伤小鼠有明显的保护作用,可能通过NF-κB/IκBα信号通路来实现。 展开更多
关键词 氧化应激 肝损伤 卡介苗 脂多糖 核因子-ΚB
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狭基线纹香茶菜对小鼠免疫性肝损伤的保护作用 被引量:6
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作者 周才杰 侯少贞 +2 位作者 李向阳 叶木荣 赖小平 《中药新药与临床药理》 CAS CSCD 北大核心 2010年第3期266-268,共3页
目的研究狭基线纹香茶菜对卡介苗(BCG)加脂多糖(LPS)所致小鼠免疫性肝损伤的保护作用。方法 72只小鼠随机分为正常组,模型组,高、中、低剂量给药组(20,10,5g·kg-1),阳性对照组(联苯双酯60mg·kg-)1,每天给药1次,连续12d。第1天... 目的研究狭基线纹香茶菜对卡介苗(BCG)加脂多糖(LPS)所致小鼠免疫性肝损伤的保护作用。方法 72只小鼠随机分为正常组,模型组,高、中、低剂量给药组(20,10,5g·kg-1),阳性对照组(联苯双酯60mg·kg-)1,每天给药1次,连续12d。第1天,除正常组外,各组每只小鼠尾静脉注射BCG0.2mL(10mg·mL-)1。末次给药后,除正常组外,各组小鼠尾静脉注射LPS0.2mL(37.5μg·mL-1)造模。造模16h后取血,测定血清谷丙转氨酶(ALT)、谷草转氨酶(AST),肝组织超氧化物岐化酶(SOD)的活性和丙二醛(MDA)及一氧化氮(NO)含量,同时测体重、肝脏重、脾重和胸腺重,求脏器指数,并观察肝组织病理学变化。结果狭基线纹香茶菜高、中、低剂量组均能显著降低ALT、AST值和MDA含量(P<0.05或P<0.01),对肝重量和脾重量增加及胸腺萎缩有抑制作用(P<0.05或P<0.01)。病理检查结果也显示有明显的保肝作用。结论狭基线纹香茶菜对BCG和LPS所致小鼠免疫性肝损伤有保护作用,其保肝机制与其抗脂质过氧化损伤有关。 展开更多
关键词 狭基线纹香茶菜 卡介苗 脂多糖 肝损伤 转氨酶 丙二醛
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cAMP在LPS及BCG +LPS诱导的免疫性肝损伤中的作用比较(英文) 被引量:3
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作者 丁虹 彭仁琇 于皆平 《中国药理学通报》 CAS CSCD 北大核心 2003年第8期940-943,共4页
目的 比较LPS、BCG +LPS诱导的免疫性肝损伤模型的特点及肝中cAMP的变化 ,以建立合适的动物模型 ,并为药物作用及肝损伤机制探讨提供参考。方法 昆明种小鼠 ,分为 5组 :①对照组 ;②BCG组 (ip 1mg·kg- 1 BCG ,7d后处理动物 ) ;③... 目的 比较LPS、BCG +LPS诱导的免疫性肝损伤模型的特点及肝中cAMP的变化 ,以建立合适的动物模型 ,并为药物作用及肝损伤机制探讨提供参考。方法 昆明种小鼠 ,分为 5组 :①对照组 ;②BCG组 (ip 1mg·kg- 1 BCG ,7d后处理动物 ) ;③LPS 0 2mg ;④LPS 0 4mg组 (分别ip 0 2 ,0 4mg·kg- 1 ,6h后处理动物 ) ;⑤BCG +LPS组 (ip 1mg·kg- 1 BCG 7d后ip 0 2mg·kg- 1 LPS 6h后处理动物 )。取血清 ,测定ALT、GST活性 ;HE染色 ,光镜观察组织损伤情况 ;制备肝匀浆 ,放射免疫法测定cAMP含量。结果 组织学检查表明 ,给予BCG或LPS均能引起中性粒细胞浸润。单独给予BCG或 0 2mg·kg- 1 LPS未见明显的肝组织损害 ,但经BCG预处理后 ,0 2mg·kg- 1 LPS可使血清ALT、GST水平显著增高。单独给予 0 4mg·kg- 1 LPS也能引起明显的肝组织损伤。经BCG预处理后的小鼠肝组织内cAMP含量明显下降 ,而单独LPS刺激 ,则使肝内cAMP含量呈剂量依赖性增高。结论 LPS、BCG +LPS均能引起典型的免疫性肝损伤 ,经BCG预处理 ,能增强内毒素刺激诱导的肝脏毒性。不同的免疫性肝损伤模型所致肝内cAMP含量的变化不同 。 展开更多
关键词 CAMP 脂多糖(LPS) 卡介苗(BCG) 免疫性肝损伤
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苹果多酚对卡介苗联合脂多糖所致小鼠免疫性肝损伤的保护作用 被引量:1
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作者 王芳 薛杨 +2 位作者 杨静玉 王欢 吴春福 《世界中医药》 CAS 2014年第9期1206-1209,共4页
目的:观察苹果多酚(Apple Polyphenols,AP)对小鼠免疫性肝损伤的保护作用。方法:采用卡介苗联合脂多糖制备小鼠免疫性肝损伤模型。研究AP对小鼠肝指数和脾指数,血清中谷草转氨酶(Aspartate Transaminase,AST)和谷丙转氨酶(Alanine Trans... 目的:观察苹果多酚(Apple Polyphenols,AP)对小鼠免疫性肝损伤的保护作用。方法:采用卡介苗联合脂多糖制备小鼠免疫性肝损伤模型。研究AP对小鼠肝指数和脾指数,血清中谷草转氨酶(Aspartate Transaminase,AST)和谷丙转氨酶(Alanine Transaminase,ALT)活性,血清总蛋白(Total Protein,TP),白蛋白(Albumin,Alb)和白蛋白/球蛋白(A/G)含量的改善作用,同时采用HE染色方法观察AP对免疫性肝损伤小鼠肝脏病理改变的保护作用。结果:AP能明显抑制免疫性肝损伤模型小鼠异常升高的肝指数和脾指数,降低血清中AST活性,不同程度地升高血清中TP和Alb的含量,同时对肝组织病理异常变化也有显著的改善作用。结论:AP对卡介苗联合脂多糖所致的小鼠免疫性肝损伤具有保护作用。 展开更多
关键词 苹果多酚 卡介苗 脂多糖 免疫性肝损伤
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灯盏乙素对脂多糖加卡介苗所致小鼠免疫性肝损伤保护作用的机制研究 被引量:2
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作者 杨秀芬 郭菁菁 《时珍国医国药》 CAS CSCD 北大核心 2010年第8期1849-1851,共3页
目的在前期工作基础上,对灯盏乙素对脂多糖加卡介苗所致小鼠免疫性肝损伤保护作用的机制进行研究。方法建立脂多糖加卡介苗(LPS+BCG)致小鼠免疫性肝损伤模型,灯盏乙素50,100,200 mg.kg-1,1次/d,连续灌胃给药12d。测定血清中谷丙转氨酶(a... 目的在前期工作基础上,对灯盏乙素对脂多糖加卡介苗所致小鼠免疫性肝损伤保护作用的机制进行研究。方法建立脂多糖加卡介苗(LPS+BCG)致小鼠免疫性肝损伤模型,灯盏乙素50,100,200 mg.kg-1,1次/d,连续灌胃给药12d。测定血清中谷丙转氨酶(alanine aminotransferase,ALT)及肝组织匀浆中超氧化物歧化酶(superoxide dismutase,SOD)、丙二醛(malondialdehyde,MDA)、谷胱甘肽过氧化物酶(glutathione peroxidase,GSH-Px)、过氧化氢酶(catalase,CAT)、黄嘌呤氧化酶(xanthine oxidase,XOD)、一氧化氮(nitric oxide,NO)、总一氧化氮合酶(total Nitricoxide synthase,total NOS)、结构型一氧化氮合酶(Constitutive Nitricoxide synthase,cNOS)、诱导型一氧化氮合酶(Inducible Nitricoxide synthase,iNOS)等生化指标。结果灯盏乙素低、中、高3个剂量组均能显著降低LPS+BCG致肝损伤小鼠血清中ALT水平,各剂量组能不同程度提高肝组织匀浆中CAT,SOD,GSH-Px的活性以及降低XOD,MDA,NO的含量。对一氧化氮合酶各分型分析表明,灯盏乙素能显著降低总NOS和iNOS的表达,对cNOS的表达基本没有影响。结论灯盏乙素对脂多糖加卡介苗引起的免疫性肝损伤具有保护作用的机制可能与其抗脂质过氧化,增强机体对自由基的清除能力及调节体内NO水平等有关。 展开更多
关键词 灯盏乙素 脂多糖 卡介苗 免疫性 肝损伤 抗氧化 一氧化氮
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