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Comparative genomic analysis revealed that dietary habits affected the adaptation of Bifidobacterium bifidum to the intestinal tract in different geographic populations
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作者 Min Li Jie Yu +3 位作者 Weicheng Li Qiong Wu Jiaqi Sun Zhihong Sun 《Food Science and Human Wellness》 SCIE CAS CSCD 2024年第5期3006-3017,共12页
Recent research on the genome of Bifidobacterium bifidum has mainly focused on the isolation sources(intestinal tract niche)recently,but reports on the isolation region are limited.This study analyzed the differences ... Recent research on the genome of Bifidobacterium bifidum has mainly focused on the isolation sources(intestinal tract niche)recently,but reports on the isolation region are limited.This study analyzed the differences in the genome of B.bifidum isolated from different geographical populations by comparative genomic analysis.Results at the genome level indicated that the GC content of American isolates was significantly higher than that of Chinese and Russian isolates.The phylogenetic tree,based on 919 core genes showed that B.bifidum might be related to the geographical characteristics of isolation region.Furthermore,functional annotation analysis demonstrated that copy numbers of carbohydrate-active enzymes(CAZys)involved in the degradation of polysaccharide from plant and host sources in B.bifidum were high,and 18 CAZys showed significant differences across different geographical populations,indicating that B.bifidum had adapted to the human intestinal environment,especially in the groups with diets rich in fiber.Dietary habits were one of the main reasons for the differences of B.bifidum across different geographical populations.Additionally,B.bifidum exhibited high diversity,evident in glycoside hydrolases,the CRISPR-Cas system,and prophages.This study provides a genetic basis for further research and development of B.bifidum. 展开更多
关键词 bifidobacterium bifidum Comparative genomics Genetic diversity ADAPTATION Carbohydrate-active enzymes
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Metabolite acetyl-L-carnitine participates in Bifidobacterium animalis F1-7 to ameliorate atherosclerotic inflammation by downregulating theTLR4/NF-κB pathway
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作者 Xi Liang Zhe Zhang +7 位作者 Xiaoying Tian Qingyu Cui Haiyan Lu Maozhen Zhao Tongjie Liu Huaxi Yi Pimin Gong Lanwei Zhang 《Food Science and Human Wellness》 SCIE CSCD 2024年第2期813-822,共10页
This study aimed to explore the effect of Bifidobacterium animalis F1-7 on the improvement of atherosclerotic inflammation.Arteriosclerosis model ApoE^(-/-)mice were orally administered with B.animalis F1-7 for 12 wee... This study aimed to explore the effect of Bifidobacterium animalis F1-7 on the improvement of atherosclerotic inflammation.Arteriosclerosis model ApoE^(-/-)mice were orally administered with B.animalis F1-7 for 12 weeks.The probiotic intervention reduced the plaque areas in aorta and the accumulation of macrophages,and downregulated the expression of toll-like receptor 4(TLR4)/nuclear factorκB(NF-κB)pathway to reduce the levels of inflammatory factors.The widely-targeted metabolomics analysis showed that acetyl-L-carnitine(ALC)in the intestine of atherosclerotic mice was significantly increased after B.animalis F1-7 intervention.Correlation analysis proved that ALC was associated with atherosclerotic inflammatory response.By using oxidized low density lipoprotein induced macrophage foam cells,we further verified that ALC could reduce lipid accumulation and inflammatory response in foam cells by downregulating the TLR4/NF-κB pathway.Finally,our results revealed that B.animalis F1-7 upregulated the metabolite ALC to downregulate the inflammatory responses,leading to the reduction of plaque accumulation of atherosclerosis. 展开更多
关键词 bifidobacterium animalis F1-7 Atherosclerosis INFLAMMATION METABONOMICS ACETYL-L-CARNITINE
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Environmental enrichment in combination with Bifidobacterium breve HNXY26M4 intervention amplifies neuroprotective benefits in a mouse model of Alzheimer's disease by modulating glutamine metabolism of the gut microbiome
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作者 Guangsu Zhu Min Guo +3 位作者 Jianxin Zhao Hao Zhang Gang Wang Wei Chen 《Food Science and Human Wellness》 SCIE CSCD 2024年第2期982-992,共11页
The gut microbiota-brain axis has emerged as a novel target for Alzheimer's disease(AD),a neurodegenerative disease characterised by behavioural and cognitive impairment.However,most previous microbiome-based inte... The gut microbiota-brain axis has emerged as a novel target for Alzheimer's disease(AD),a neurodegenerative disease characterised by behavioural and cognitive impairment.However,most previous microbiome-based intervention studies have focused on single factors and yielded only modest cognitive improvements.Here,we proposed a multidomain intervention strategy that combined Bifidobacterium breve treatment with environmental enrichment(EE)training.In this study,we found that compared with EE or B.breve treatment alone,B.breve intervention combined with EE amplified its neuroprotective effects on AD mice,as reflected by improved cognition,inhibited neuroinflammation and enhanced synaptic function.Moreover,using microbiome and metabolome profiling,we found that the combination of B.breve and EE treatment restored AD-related gut microbiota dysbiosis and reversed microbial metabolite changes.Finally,by integrating behavioural and neurological data with metabolomic profiles,we revealed that the underlying mechanism may involve the modulation of microbiota-derived glutamine metabolism via gut-brain interactions.Collectively,combined B.breve intervention with EE treatment can alleviate AD-related cognitive impairment and improve brain function by regulating glutamine metabolism of the gut microbiome.Our findings provide a promising multidomain intervention strategy,with a combination of dietary microbiome-based and lifestyle-targeted interventions,to promote brain function and delay the progression of AD. 展开更多
关键词 Alzheimer’s disease bifidobacterium breve Environmental enrichment Glutamine metabolism Microbiota-gut-brain axis
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Preventive effects of Bifidobacterium lactis Probio-M8 on ovalbumin-induced food allergy in mice
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作者 Jialu Shi Yan Xu +3 位作者 Cheng Liu Shizhi Wang Jin Wang Vijaya Raghavan 《Food Science and Human Wellness》 SCIE CAS CSCD 2024年第4期2346-2352,共7页
Food allergy is a significant public health concern globally.Certain probiotics have been found to enhance food allergy by regulating immune-microbe interactions in animal models and patients.However,the effects of Bi... Food allergy is a significant public health concern globally.Certain probiotics have been found to enhance food allergy by regulating immune-microbe interactions in animal models and patients.However,the effects of Bifidobacterium lactis Probio-M8 on food allergy have not been thoroughly investigated.The present study examined the anti-allergic properties of Probio-M8,particularly in relation to immune response and gut microbiota composition.Results demonstrate that oral administration of Probio-M8 effectively mitigated the allergy symptoms triggered by ovalbumin(OVA)by ameliorating the morphological damage in the jejunum,reducing OVA-specific IgE and histamine levels in the serum,and suppressing Th2 cytokines(interleukin(IL)4 and IL-13)while increasing Th1 cytokines(interferon(IFN)γ)and regulatory T(Treg)cytokines(IL-10 and transforming growth factor(TGF)β1)in the culture supernatants of splenic cells.Furthermore,Probio-M8 effectively altered the diversity and composition of gut microbiota,particularly the relative abundances of Akkermansia_muciniphila in OVA-induced mice.Compared to the OVA group,the Probio-M8 group showed a decrease in the relative abundance of Akkermansia_muciniphila.In conclusion,Probio-M8 demonstrates the potential to alleviate food allergy by regulating the Th1/Th2 response and modulating gut microbiota,thereby offering a novel therapeutic strategy for patients with food allergy. 展开更多
关键词 Food allergy bifidobacterium lactis Probio-M8 T cell immune response Gut microbiota
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Influence of whole peptidoglycan of bifidobacterium on cytotoxic effectors produced by mouse peritoneal macrophages 被引量:15
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作者 Li Sheng Wang~1 Hui Ming Zhu~1 Dian Yuan Zhou~2 Yu Lin Wang~1 Wan Dai Zhang~2 ~1Departrnent of Gastroenterology,Shenzhen Municipal People’s Hospital,Jinan University of Medical Sciences,Shenzhen 518020,Guangdong Province,China ~2Chinese PLA Institute of Digestion,the First Military Medical University,Guangzhou 510515,Guangdong Province,ChinaLi Sheng Wang graduated and obtained Ph.D,from the First Military Medical University in 1998,now working at Department of Gastroenterology,Shenzhen Municipal People’s Hospital.Jinan University of Medical Sciences.having 35 papers published. 《World Journal of Gastroenterology》 SCIE CAS CSCD 2001年第3期440-443,共4页
INTRODUCTIONBifidobacteria are physiologically beneficial bacteria which are perdominant in human intestine ,and possess the most important functions .They play an important role in maintaining microbial balance of th... INTRODUCTIONBifidobacteria are physiologically beneficial bacteria which are perdominant in human intestine ,and possess the most important functions .They play an important role in maintaining microbial balance of the intestine .Furthermore , their presence is thought to be an important indication of health of the body [1-4].Whole peptidoglycan ( WPG) is the major component in the cell wall of bifidobacterium ,which is also a biological responsemodifier with nontoxic side dffcets. 展开更多
关键词 bifidobacterium Animals INTERLEUKIN-12 Interleukin-6 INTESTINES Macrophages Peritoneal MICE Mice Inbred BALB C Mice Nude Microscopy Confocal Nitric Oxide peptidoglycan Research Support Non-U.S. Gov't Tumor Necrosis Factor-alpha
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THE APOPTOSIS OF EXPERIMENTAL COLORECTAL CARCINOMA CELLS INDUCED BY PEPTIDOGLYCAN OF BIFIDOBACTERIUM AND THE EXPRESSION OF APOPTOTIC REGULATING GENES 被引量:5
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作者 王立生 潘令嘉 +3 位作者 施理 孙勇 张亚历 周殿元 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 1999年第3期184-187,共4页
Objective: To explore the antitumor mechanisms of whole peptidoglycan of bifidobacterium. Methods: The apoptotic cells and the positive expression of bcl-2 and bax oncoprotein were studied nude mice transplantation tu... Objective: To explore the antitumor mechanisms of whole peptidoglycan of bifidobacterium. Methods: The apoptotic cells and the positive expression of bcl-2 and bax oncoprotein were studied nude mice transplantation tumors of colorectal carcinoma by employing in situ end labeling technique and immunohistochemical staining. Results: The apoptotic cell density, the positive rate and the staining intensity of bax oncoprotein of the transplantation tumor of colorectal carcinoma in the whole peptidoglycan injection group were significantly higher when compared with the tumor control group. The positive rate of bcl-2 oncoportein in the whole peptidoglycan injection group was obviously lower than that in the tumor control group (P<0.01). Conclusion: Whole peptidoglycan of Bifidobacterium bifidum could induce cell apoptosis of nude mice transplantation tumors of colorectal carcinoma by down-regulating the expression of the bcl-2 gene and upregulating the expression of the bax gene. 展开更多
关键词 bifidobacterium Whole peptidoglycan APOPTOSIS Colorectal carcinoma
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Influence of whole peptidoglycan of Bifidobacterium bifidum on cytokines production by peritoneal macrophages of nude mice
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作者 王立生 潘令嘉 +3 位作者 施理 孙勇 张亚历 周殿元 《Journal of Medical Colleges of PLA(China)》 CAS 1999年第2期83-86,共4页
Objective: To explore the functions of whole peptidoglycan (WPG ) of bifidobacterium in regulating immune reactions. Methods: IL- 1 activity produced by peritoneal macrophages was investigated by murine thymocyte prol... Objective: To explore the functions of whole peptidoglycan (WPG ) of bifidobacterium in regulating immune reactions. Methods: IL- 1 activity produced by peritoneal macrophages was investigated by murine thymocyte proliferating method; The content of IL-6 and IL-12 was detected by ELISA. Results: IL--1 activity and the contents of IL--6 and IL--12 secreted by peritoneal macrophages of nude mice in the WPG injection group were significantly higher than those in the control group (P < 0. 01 ). Conclusion: WPG of bifidobacteria can activate peritoneal macrophages to secret relatively large amount of IL- 1. IL- 6 and IL- 12. 展开更多
关键词 WHOLE peptidoglycan MACROPHAGE INTERLEUKIN 1 INTERLEUKIN 6 INTERLEUKIN 12
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Impact of Bifidobacterium longum NSP001 on DSS-induced colitis in conventional and humanised mice 被引量:1
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作者 Menglin Chen Hong Yao +3 位作者 Huizi Tan Wenqi Huang Quanyong Wu Shaoping Nie 《Food Science and Human Wellness》 SCIE CSCD 2023年第4期1109-1118,共10页
Most scientific investigations regarding inflammatory bowel disease(IBD)pathogenesis or therapeutic strategies use dextran sulfate sodium(DSS)-induced models performed on mice.However,differences between human and ani... Most scientific investigations regarding inflammatory bowel disease(IBD)pathogenesis or therapeutic strategies use dextran sulfate sodium(DSS)-induced models performed on mice.However,differences between human and animal microbiota may confound the data reproducibility from rodent experiments to clinical trials.In this study,the intervention effects of Bifidobacterium longum NSP001 on DSS-induced colitis were investigated using mice colonized with either native or humanised microbiota.Disorders in disease activity index(DAI),morphology and histology of colon tissue,intestinal permeability,and secretion of MPO,TNF-αand IL-6 were ameliorated by daily intake of live B.longum NSP001 cells in both conventional and humanised colitis mice.But the abnormal thymus index,and colonic production of ZO-1 and iNOS were improved only in colitis mice treated with B.longum NSP001 and humanised microbiome.The accumulation of acetic acid and propionic acid in colon microbiome,and the optimization of primary bile acid biosynthesis and glycerophospholipid metabolism pathways in cecum commensals were likely to explain the beneficial effects of B.longum NSP001.These data revealed that intestinal microbiome baseline would possibly affect the manifestation features of interventions by probiotics or dietary components and highlighted the necessity to include humanised microbiome while investigating potential therapeutic strategies based on rodent models. 展开更多
关键词 bifidobacterium longum Ulcerative colitis Humanised mice INFLAMMATION Metabolism pathways
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Bifidobacterium pseudolongum JNFEN6低聚木糖利用效率评价及转录组学分析
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作者 章洁瑜 仝艳军 杨瑞金 《食品科学》 EI CAS CSCD 北大核心 2023年第22期89-97,共9页
探究不同双歧杆菌利用低聚木糖(xylooligosaccharide,XOS)的能力,通过细胞生理学及转录组学着重研究Bifidobacterium pseudolongum JNFEN6对XOS的高效利用机制。结果表明,XOS对不同双歧杆菌生长能力的影响不同,其对B.pseudolongum JNFEN... 探究不同双歧杆菌利用低聚木糖(xylooligosaccharide,XOS)的能力,通过细胞生理学及转录组学着重研究Bifidobacterium pseudolongum JNFEN6对XOS的高效利用机制。结果表明,XOS对不同双歧杆菌生长能力的影响不同,其对B.pseudolongum JNFEN6生长和产酸影响最为显著;以XOS为唯一碳源发酵36 h,B.pseudolongum JNFEN6菌株β-木糖苷酶活力为0.97 U/mL,发酵体系中丙酸质量浓度为85.26μg/mL;转录组学结果显示,XOS为唯一碳源培养条件下共有297个差异表达基因,其中包括136个上调基因和161个下调基因。这些基因中,ABC(ATP-binding cassette)转运渗透酶、底物结合蛋白和主要协同转运蛋白超家族(major facilitator superfamily,MFS)转运体等基因促进了XOS的转运,XOS代谢水解酶、乙酸激酶和乳酸脱氢酶等基因促进了XOS的代谢。综上所述,B.pseudolongum JNFEN6能高效利用XOS,其主要通过ABC转运系统和MFS转运系统摄取XOS,并通过“双歧分流”方式进行代谢,最终产生短链脂肪酸和其他有机化合物。本研究结果为XOS的双歧因子功能提供了理论依据。 展开更多
关键词 低聚木糖 假长双歧杆菌 转录组学 增殖 Β-木糖苷酶
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Identification of Lactobacillus and Bifidobacterium 16S rRNA Gene in Breast Milk of Some Healthy Women in Kinshasa (DR Congo)
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作者 Olivier Nzingula Junior Disashi +3 位作者 José Mulwahali Pius Kabututu Paola Biakas Justin Masumu 《Journal of Biosciences and Medicines》 CAS 2023年第2期275-286,共12页
Breast milk is important for infant health. Some of its benefits are due to the presence of a specific population of bacteria in the microflora. However, the microbiome of breast milk is influenced by many parameters ... Breast milk is important for infant health. Some of its benefits are due to the presence of a specific population of bacteria in the microflora. However, the microbiome of breast milk is influenced by many parameters such as maternal diet, breastfeeding and geographic location. Culture and non-culture methods have been used in studies of this bacterial population worldwide. But in the DR Congo, there was no study reporting the use of culture-independent techniques to characterize the bacterial diversity of human milk. The aim of this study was to identify the bacterial 16S rRNA gene from two genera Lactobacillus and Bifidobacterium. The 16S rRNA gene was also identified from four species: Lactobacillus reuteri, Lactobacillus rhamnosus, Bifidobacterium longum and Bifidobacterium lactis. This analytical cross-sectional study was conducted in Kinshasa. Breast milk from some healthy women was collected from February 2 to 28, 2018. A culture-independent protocol using the classical polymerase chain reaction (PCR) was used to identify the bacterial 16S rRNA gene. The 68 samples of breast milk were collected in a sterile condition. The bacteria-specific ribosomal gene 16S rRNA was detected in 91.18% of Lactobacillus and 32.35% of Bifidobacterium at genus level. At of species level, only Lactobacillus reuteri 16S rRNA gene was identified in 89.71%. The 16S rRNA gene from the other species could not be amplified. There was also an association between educational level and the presence of Bifidobacterium and Lactobacillus 16S rRNA genes in the breast milk (p = 0.008*, p Conclusion: This study demonstrates the presence of the bacterial 16S rRNA gene from Lactobacillus and Bifidobacterium in breast milk at the genus and Lactobacillus reuteri at species level. A further study on the diet, use of antibiotics during pregnancy and lactation practice will provide a better understanding of the microflora of breast milk. 展开更多
关键词 16S rRNA PCR LACTOBACILLUS bifidobacterium Breast Milk
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Safety Evaluations of Long-Term and Excessive Intakes of Bifidobacterium longum CLA8013: A Placebo-Controlled, Randomized, Double-Blind Study
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作者 Daisuke Takami Keisuke Okada +3 位作者 Yutaka Makizaki Yoshiki Tanaka Hiroshi Ohno Daisuke Tsuge 《Food and Nutrition Sciences》 2023年第10期997-1012,共16页
Heat-killed Bifidobacterium longum CLA8013 has been demonstrated to improve the frequency of defecation, straining, and pain during defecation in human placebo-controlled, double-blind, parallel-group studies. We cond... Heat-killed Bifidobacterium longum CLA8013 has been demonstrated to improve the frequency of defecation, straining, and pain during defecation in human placebo-controlled, double-blind, parallel-group studies. We conducted a randomized, double-blind, placebo-controlled, parallel-group study to evaluate the safety of both long-term and excessive intakes of heat-killed B. longum CLA8013, when used as a food with functional claims. In both tests, 30 healthy volunteers were divided into two groups: an active group that ingested heat-killed B. longum CLA8013 and a placebo group. In the long-term intake safety study, participants in the active group ingested 25 billion cells/day for 12 weeks. In the excessive intake safety study, participants in the active group ingested 125 billion cells/day for 4 weeks. Physical, hematological, biochemical, and urine examinations were conducted, and adverse events were evaluated in both studies. The studies revealed no abnormalities in any of the safety tests. In conclusion, no safety-related issues were identified with long-term or excessive intake of heat-killed B. longum CLA8013. 展开更多
关键词 CONSTIPATION SAFETY bifidobacterium longum LONG-TERM EXCESSIVE
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Bifidobacterium longum CCFM1077 Attenuates Hyperlipidemia by Modulating the Gut Microbiota Composition and Fecal Metabolites:A Randomized,Double-Blind,Placebo-Controlled Clinical Trial
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作者 Chuanqi Chu Jinchi Jiang +8 位作者 Leilei Yu Yiwen Li Songli Zhang Wei Zhou Qun Wang Jianxin Zhao Qixiao Zhai Fengwei Tian Wei Chen 《Engineering》 SCIE EI CAS CSCD 2023年第9期193-205,共13页
An increasing number of studies have indicated that gut microbiota and its metabolites are crucial in the development of hyperlipidemia.Bifidobacterium longum(B.longum)CCFM1077 has been shown to have lipid-lowering ef... An increasing number of studies have indicated that gut microbiota and its metabolites are crucial in the development of hyperlipidemia.Bifidobacterium longum(B.longum)CCFM1077 has been shown to have lipid-lowering effects in animals.This study aimed to evaluate the potential of B.longum CCFM1077 in lowering the lipid levels in patients with hyperlipidemia and investigate the effect of this bacterium on serum lipid abnormalities,gut microbiota,and fecal metabolites in these patients.This study was a six-week,randomized,double-blind,and placebo-controlled pilot clinical trial.Subjects with hyperlipidemia(N=62)were randomly assigned to receive placebo(N=31)or B.longum CCFM1077(1×1010colony-forming units(CFUs)per day;N=31).Serum lipid levels including total cholesterol(TC),lowdensity lipoprotein cholesterol(LDL-C),total triglyceride(TG),and high-density lipoprotein cholesterol(HDL-C)were examined at the baseline and interventio nal endpoints.Changes in the gut microbiota composition and diversity were measured based on 16S ribosomal RNA(rRNA)sequencing of the V3-V4region at the end of the intervention period.Non-targeted metabolomics of the feces was performed using ultra-performance liquid chromatography(UPLC)-Q-Exactive Orbitrap/mass spectrometer.Oral administration of B.longum CCFM1077 for six weeks significantly decreased the serum levels of TC(p<0.01)and LDL-C(p<0.01)in patients with hyperlipidemia.B.longum CCFM1077 treatment markedly increased gut microbiota diversity and the relative abundance of anti-obesity-related genera,including Lactobacillus,Butyricicoccus,Bifidobacterium,and Blautia,whereas it decreased the relative abundance of obesity-related genera,including Alistipes,Megamonas,and Catenibacterium.Additionally,some key metabolites(bile acids(BAs),biotin,and caffeine)and their corresponding metabolic pathways(primary BA biosynthesis,and taurine and hypotaurine,biotin,purine,and caffeine metabolisms)were enriched by B.longum CCFM1077,and thus it may lower lipid levels.B.longum CCFM1077 is a probiotic strain with the potential to lower serum TC and LDL-C levels patients with hyperlipidemia.The underlying mechanism may be related to the increased abundance of anti-obesity-related genera and fecal metabolites.These findings provide a foundation for future clinical applications of lipid-lowering probiotics in managing individuals with hyperlipidemia. 展开更多
关键词 PROBIOTICS bifidobacterium longum HYPERLIPIDEMIA Gut microbiota Fecal metabolites Bile acid(BA)
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Study on the Effect of Bifidobacterium Quadruple Viable Tablets in the Treatment of Ulcerative Colitis
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作者 Mengyuan Wang 《Proceedings of Anticancer Research》 2023年第5期78-83,共6页
Objective:To study the therapeutic efficacy of patients with ulcerative colitis receiving Bifidobacterium quadruple viable tablets.Methods:49 cases were selected from ulcerative colitis patients who attended the clini... Objective:To study the therapeutic efficacy of patients with ulcerative colitis receiving Bifidobacterium quadruple viable tablets.Methods:49 cases were selected from ulcerative colitis patients who attended the clinic from February 2021 to November 2022,and were randomly grouped into group A for addition of Bifidobacterium quadruple viable tablets treatment,and group B for conventional medication.The efficacy,inflammatory factors,nutritional indexes,and adverse reactions were compared between the groups.Results:The efficacy of UC patients in group A was higher than that in group B(P<0.05);the inflammatory factors in group A were lower than that in group B(P<0.05);nutritional indicators in group A were higher than that in group B(P<0.05);and the adverse reactions of medication in UC patients in group A were lower than that in group B(P<0.05).Conclusion:The treatment of UC patients with the addition of Bifidobacterium quadruple viable tablets can improve the nutritional status of the organism,inhibit the progression of inflammation,and is safe and efficient in treating ulcerative colitis. 展开更多
关键词 Ulcerative colitis bifidobacterium quadruple viable tablets Therapeutic effect
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补中益气汤治疗便秘型肠易激综合征 被引量:1
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作者 李宇栋 张书信 +5 位作者 许云霞 吴承东 刘建乔 芦煜 李雪 周仲伍 《吉林中医药》 2024年第6期687-691,共5页
目的探索补中益气汤治疗便秘型肠易激综合征的效果。方法选取首都医科大学附属北京中医医院2021年1月-2023年9月收治的110例进行常规治疗的便秘型肠易激综合征患者采用随机数字表法分为联合双歧杆菌四联活菌片治疗的对照组和联合双歧杆... 目的探索补中益气汤治疗便秘型肠易激综合征的效果。方法选取首都医科大学附属北京中医医院2021年1月-2023年9月收治的110例进行常规治疗的便秘型肠易激综合征患者采用随机数字表法分为联合双歧杆菌四联活菌片治疗的对照组和联合双歧杆菌四联活菌片、补中益气汤治疗的观察组,各55例,2组均治疗4周。比较2组临床疗效、中医证候积分、TLR4/MyD88/NF-κB信号通路指标、血清细胞因子水平、便秘症状、生活质量及心理状态、不良反应。结果治疗4周后,观察组总有效率高于对照组(P<0.05)。2组治疗4周后大便干结、腹痛、排便困难、神倦乏力、CCS、SAS、SDS评分及血清TLR4、MyD88、NF-κB p65、NPY、SP、5-HT、VIP、SS水平与治疗前比较,降低,观察组低于对照组(P<0.05);IBS-QOL评分与治疗前比较,升高,观察组高于对照组(P<0.05)。观察组与对照组治疗期间总不良反应发生率差异无统计学意义(P>0.05)。结论补中益气汤治疗便秘型肠易激综合征患者,可有效改善其中医证候,调节TLR4/MyD88/NF-κB信号通路指标及相关细胞因子表达水平,改善其便秘症状及心理状态,提高患者生活质量,具有较好的治疗效果,且不会增加不良反应的发生。 展开更多
关键词 肠易激综合征 便秘型 补中益气汤 双歧杆菌四联活菌 TLR4/MyD88/NF-κB信号通路
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6种双歧杆菌发酵对绣球菌营养成分及抗氧化活性的影响
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作者 王宏雨 翁梦婷 +1 位作者 孔子浩 张迪 《中国食用菌》 2024年第3期91-95,共5页
以筛选适宜绣球菌发酵并提升营养功效的双歧杆菌菌株为目标,选用6种双歧杆菌分别对绣球菌子实体进行液体发酵。通过测定6种双歧杆菌发酵前后绣球菌菌浆中的pH、总酸、可溶性粗多糖、总氨基酸、总多酚及抗氧化活性等指标,评价选用的双歧... 以筛选适宜绣球菌发酵并提升营养功效的双歧杆菌菌株为目标,选用6种双歧杆菌分别对绣球菌子实体进行液体发酵。通过测定6种双歧杆菌发酵前后绣球菌菌浆中的pH、总酸、可溶性粗多糖、总氨基酸、总多酚及抗氧化活性等指标,评价选用的双歧杆菌的发酵效果。结果表明,6种供试菌菌株均可在绣球菌菌浆中发酵产酸,其中长双歧杆菌长亚种的发酵物总酸最高,达到83.66 g·kg^(-1),发酵产物的抗氧化活性增幅也最为明显,其DPPH自由基清除率为56.06%,总抗氧化能力为0.66μmol·mL^(-1)。两双歧杆菌可显著提升发酵物中可溶性多糖的含量,相比于对照组其含量可提高74.56%。6种供试菌株均可不同程度提高发酵物中的氨基酸含量,其中青春双歧杆菌发酵产物氨基酸含量提升幅度最高,相对于对照组提高率为24.76%。 展开更多
关键词 绣球菌 双歧杆菌 抗氧化活性
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分离自母婴粪便及母乳的短双歧杆菌耐药性研究
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作者 钟智 马昕玮 +1 位作者 路镜达 陈永福 《中国乳品工业》 CAS 北大核心 2024年第3期21-24,50,共5页
短双歧杆菌是人体肠道中常见的一种双歧杆菌,因其具有诸多益生特性被广泛关注,但是对其抗生素耐药性方面的研究严重不足。本研究以23株分离自母婴粪便及母乳的短双歧杆菌为研究对象,测定了菌株对14种常见抗生素的耐药性。研究发现,实验... 短双歧杆菌是人体肠道中常见的一种双歧杆菌,因其具有诸多益生特性被广泛关注,但是对其抗生素耐药性方面的研究严重不足。本研究以23株分离自母婴粪便及母乳的短双歧杆菌为研究对象,测定了菌株对14种常见抗生素的耐药性。研究发现,实验菌株对12种抗生素存在不同程度的耐药性,仅对氨苄西林和利奈唑胺敏感。全部实验菌株均对氯霉素、环丙沙星、卡那霉素、四环素、庆大霉素和新霉素具有耐药性。进一步分析发现,分离自L家庭母亲粪便的菌株对利福平、克林霉素和链霉素的耐药率显著高于婴儿粪便和母乳分离株。短双歧杆菌的耐药表型差异较大,即使是分离自同一个家庭和个体的菌株其耐药表型也不相同。研究为短双歧杆菌的安全性评价和应用提供了基础数据。 展开更多
关键词 短双歧杆菌 耐药性 母婴 母乳 安全性
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间歇光疗联合双歧杆菌三联活菌胶囊治疗新生儿高胆红素血症的效果
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作者 魏丽夏 袁风娇 姜中惠 《川北医学院学报》 CAS 2024年第9期1176-1178,1186,共4页
目的:探讨间歇光疗联合双歧杆菌三联活菌胶囊对新生儿高胆红素血症的效果。方法:选取120例高胆红素血症患儿为研究对象,依据治疗方式不同分为对照组和研究组,每组各60例。对照组患儿给予常规光疗治疗;研究组患儿给予间歇光疗联合双歧杆... 目的:探讨间歇光疗联合双歧杆菌三联活菌胶囊对新生儿高胆红素血症的效果。方法:选取120例高胆红素血症患儿为研究对象,依据治疗方式不同分为对照组和研究组,每组各60例。对照组患儿给予常规光疗治疗;研究组患儿给予间歇光疗联合双歧杆菌三联活菌胶囊治疗,均治疗至患儿健康出院。比较两组患儿临床疗效、治疗后各个时段总胆红素(TBil)水平、治疗后生化指标[C反应蛋白(CRP)、白细胞介素6(IL-6)、天冬氨酸氨基酸转移酶(AST)、丙氨酸氨基转移酶(ALT)水平]及并发症发生情况。结果:研究组患儿治疗总有效率高于对照组(98.33%vs.86.67%,P<0.05)。治疗后3、7 d,两组患儿总胆红素(TBil)水平均随时间延长逐渐降低(P<0.05),且研究组各时段均低于对照组(P<0.05)。治疗后,研究组患儿血清CRP、IL-6、AST、ALT水平均低于对照组(P<0.05);并发症总发生率低于对照组(5.00%vs.18.33%,P<0.05)。结论:新生儿高胆红素血症应用间歇光疗联合双歧杆菌三联活菌胶囊治疗能缩短康复进程,消除临床症状,改善生化指标,减少并发症发生率,值得临床推广。 展开更多
关键词 间歇光疗 双歧杆菌三联活菌胶囊 高胆红素血症 新生儿
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嗜热酸性Ⅲ型普鲁兰水解酶协同压热制备莲子抗性淀粉的工艺优化及其功能特性研究
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作者 郭建军 曾静 +1 位作者 王通 袁林 《食品工业科技》 CAS 北大核心 2024年第11期195-204,共10页
本研究以莲子淀粉为原料,采用嗜热酸性Ⅲ型普鲁兰水解酶(TK-PUL)与压热联合制备RS3型抗性淀粉(EHP-LRS3)。通过单因素实验和响应面试验对TK-PUL与压热联合制备EHP-LRS3的工艺参数进行了优化,采用扫描电子显微镜和X-射线衍射对EHP-LRS3... 本研究以莲子淀粉为原料,采用嗜热酸性Ⅲ型普鲁兰水解酶(TK-PUL)与压热联合制备RS3型抗性淀粉(EHP-LRS3)。通过单因素实验和响应面试验对TK-PUL与压热联合制备EHP-LRS3的工艺参数进行了优化,采用扫描电子显微镜和X-射线衍射对EHP-LRS3的形貌、晶体结构进行了观察与分析,并考察了EHP-LRS3对长双歧杆菌的促增殖能力。结果表明,在TK-PUL酶解温度为80℃时制备EHP-LRS3的最佳工艺为:向质量分数为35.32%的莲子淀粉乳(pH5.00)中添加25.00 U/g(莲子淀粉)的TK-PUL,将混合物于80℃处理12.70 h,再将其依次于121℃压热处理10 min、4℃回生处理24 h。在最佳工艺条件下,EHP-LRS3的得率为58.46%。扫描电镜分析显示EHP-LRS3呈不规则的沟壑状结构。X-射线衍射分析表明EHP-LRS3的晶体结构呈现出不同于莲子淀粉A型晶体结构的B型晶体结构。EHP-LRS3对长双歧杆菌的促增殖能力优于压热法制备的RS3型抗性淀粉(HP-LRS3)。本研究采用TK-PUL与压热联合制备得到高得率的RS3型抗性淀粉(EHP-LRS3),并验证了EHP-LRS3对长双歧杆菌的促增殖能力,为莲子淀粉的高值化利用提供了理论依据。 展开更多
关键词 莲子淀粉 RS3 型抗性淀粉 Ⅲ型普鲁兰水解酶 工艺优化 结构特性 长双歧杆菌
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泄浊化瘀颗粒配合双歧杆菌四联活菌片治疗高尿酸血症的临床效果
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作者 施丽娜 单红梅 姚志华 《中国医药导报》 CAS 2024年第10期98-102,共5页
目的探究泄浊化瘀颗粒配合双歧杆菌四联活菌片治疗高尿酸血症(HUA)的临床效果。方法选取2021年11月至2023年5月江苏省常州市武进中医医院诊治的HUA患者150例作为研究对象,采用随机数字表法将其分为西医组、中医组、联合组,每组50例。西... 目的探究泄浊化瘀颗粒配合双歧杆菌四联活菌片治疗高尿酸血症(HUA)的临床效果。方法选取2021年11月至2023年5月江苏省常州市武进中医医院诊治的HUA患者150例作为研究对象,采用随机数字表法将其分为西医组、中医组、联合组,每组50例。西医组予以双歧杆菌四联活菌片治疗,中医组予以中药泄浊化瘀颗粒治疗,联合组予以双歧杆菌四联活菌片和中药泄浊化瘀颗粒联合治疗。患者共用药6周。比较三组疗效、中医体征、血尿酸(UA)水平、肝肾功能指标及用药安全性。结果联合组临床疗效优于西医组、中医组(P<0.05)。治疗后,联合组和中医组平和质得分较治疗前升高,痰湿质、湿热质、血瘀质得分较治疗前降低(P<0.05),联合组平和质得分高于西医组,痰湿质、湿热质、血瘀质得分较西医组降低(P<0.05),联合组与中医组中医体质得分比较,差异无统计学意义(P>0.05)。治疗后,三组UA水平均较治疗前降低,且联合组低于西医组和中医组(P<0.05)。三组治疗前后丙氨酸转氨酶、天冬氨酸转氨酶、血尿素氮、血肌酐水平比较,差异无统计学意义(P>0.05)。三组在治疗期间均未出现药物不良反应。结论泄浊化瘀颗粒配合双歧杆菌四联活菌片用于HUA,可有效降低UA水平,改善中医体征,提升疗效,同时不会影响患者肝肾功能,用药安全。 展开更多
关键词 高尿酸血症 生活方式干预 泄浊化瘀颗粒 双歧杆菌四联活菌片
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初诊肺结核患者肠道菌群改变及其与耐多药的临床关系分析
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作者 程治军 何多娇 +1 位作者 常婧 张毅繁 《东南大学学报(医学版)》 CAS 2024年第3期431-438,共8页
目的:观察初诊肺结核患者肠道菌群改变,并分析其与耐多药的临床关系。方法:选取2021年6月至2023年5月本院收治的初诊肺结核患者347例,纳入肺结核组。另选取同期于本院体检的健康受试者347例,纳入健康组。比较两组肠道菌群属水平的相对... 目的:观察初诊肺结核患者肠道菌群改变,并分析其与耐多药的临床关系。方法:选取2021年6月至2023年5月本院收治的初诊肺结核患者347例,纳入肺结核组。另选取同期于本院体检的健康受试者347例,纳入健康组。比较两组肠道菌群属水平的相对丰度及肠道菌群Observed species指数、Shannon指数;肺结核组患者治疗2个月后,根据结核分枝杆菌(MTB)是否耐多药将肺结核组分为耐多药组、非耐多药组;比较耐多药组、非耐多药组一般资料及肠道菌群属水平的相对丰度;采用Logistic回归模型分析初诊肺结核患者耐多药的影响因素。结果:与健康组比较,肺结核组丁酸单胞菌属、类杆菌属、乳杆菌属、双歧杆菌属、布劳特菌属、梭状芽孢杆菌属的相对丰度及Observed species指数、Shannon指数降低(P<0.05),肠球菌属、粪球菌属、多尔菌属、志贺菌属、小杆菌属、韦荣球菌属、瘤胃球菌属的相对丰度升高(P<0.05);初诊肺结核患者耐多药率23.08%;与非耐多药组比较,耐多药组双歧杆菌属的相对丰度及Observed species指数、Shannon指数降低(P<0.05);Logistic回归模型分析显示,初中及以下文化程度(OR=2.678,95%CI:1.309~5.476)、慢性阻塞性肺疾病(COPD)(OR=3.931,95%CI:1.514~10.212)、结核病接触史(OR=2.494,95%CI:1.364~4.562)、肺结核空洞病灶数量(OR=2.776,95%CI:1.872~4.116)、治疗过程中断(OR=2.450,95%CI:1.306~4.596)、双歧杆菌属相对丰度(OR=0.393,95%CI:0.268~0.576)和Shannon指数(OR=0.463,95%CI:0.302~0.712)是初诊肺结核患者耐多药的影响因素(P<0.05)。结论:初诊肺结核患者肠道菌群平衡失调,初中及以下文化程度、COPD、结核病接触史、肺结核空洞病灶数量、治疗过程中断是其耐多药的危险因素,双歧杆菌属相对丰度、Shannon指数是其保护因素。 展开更多
关键词 初诊肺结核 肠道菌群 耐多药 双歧杆菌 相对丰度
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