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排序方式: 共有619条查询结果,搜索用时 46 毫秒
1.
Selective method for identification and quantification of Bifidobacterium animalis subspecies lactis BB‐12 (BB‐12) from the gastrointestinal tract of healthy volunteers ingesting a combination probiotic of BB‐12 and Lactobacillus rhamnosus GG 下载免费PDF全文
2.
D.‐K. Kang 《Journal of applied microbiology》2017,122(3):554-567
The use of lactobacilli as probiotics in swine has been gaining attention due to their ability to improve growth performance and carcass quality, prevent gastrointestinal infection and most importantly, their ‘generally recognized as safe’ status. Previous studies support the potential of lactobacilli to regulate host immune systems, enhance gut metabolic capacities and maintain balance in the gut microbiota. Research on swine gut microbiota has revealed complex gut microbial community structure and showed the importance of Lactobacillus to the host's health. However, the species‐ and strain‐specific characteristics of lactobacilli that confer probiotic benefits are still not well understood. The diversity of probiotic traits in a complex gut ecosystem makes it challenging to infer the relationships between specific functions of Lactobacillus sp. and host health. In this review, we provide an overview of how lactobacilli play a pivotal role in the swine gut ecosystem and identify key characteristics that influence gut microbial community structure and the health of pigs. In addition, based on recent and ongoing meta‐omics and omics research on the gut microbiota of pigs, we suggest a workflow combining culture‐dependent and culture‐independent approaches for more effective selection of probiotic lactobacilli. 相似文献
3.
R. Yang D. Yin D. Yang X. Liu Q. Zhou Y. Pan J. Li S. Li 《Letters in applied microbiology》2021,73(6):779-792
This study aims to explore the potential mechanisms of Xinnaokang in atherosclerosis treatment. Firstly, the active components of Xinnaokang were analysed by HPLC, which contains ginsenoside Rg1, puerarin, tanshinone, notoginsenoside R1, ammonium glycyrrhizate and glycyrrhizin. Network pharmacology analysis showed there were 145 common targets of Xinnaokang, including the chemical stress, lipid metabolite, lipopolysaccharide, molecules of bacterial origin, nuclear receptor and fluid shear stress pathways. Then, the animal experiment showed that Xinnaokang reduced the body weight and blood lipid levels of atherosclerotic mice. Vascular plaque formation was increased in atherosclerotic mice, which was markedly reversed by Xinnaokang. In addition, Xinnaokang reduced CAV-1 expression and increased ABCA1, SREBP-1 and LXR expressions in the vasculature. Xinnaokang promoted SREBP-2 and LDLR expressions in the liver but decreased IDOL and PCSK9 expressions, indicating that Xinnaokang regulated lipid transport-related protein expression. Cecal microbiota diversity was reduced in atherosclerotic mice but increased after Xinnaokang treatment. Xinnaokang treatment also improved gut microbiota communities by enriching Actinobacteria, Bifidobacteriales and Bifidobacteriaceae abundances. Metabolic profile showed that Xinnaokang significantly reduced homogentisate, phenylacetylglycine, alanine and methionine expressions in the liver of atherosclerotic mice. Xinnaokang effectively alleviated atherosclerosis, and this effect might be linked with the altered features of the liver metabolite profiles and cecal microbiota. 相似文献
4.
高职教育中药学微生物教学的几点思考和建议 总被引:2,自引:0,他引:2
本文从高等职业教育的培养目标出发,对高等职业教育中药学微生物课所用的教材、教学的模式,考核的方法及药学微生物技术实训基地的建设进行思考并提出一些有特色的建议,它们是:以技术为主线编写教材,理论教学为实践教学服务,以模块训练技能,二至三个实验科学合理的穿插安排实施,采取口试、实验实地操作和笔试相结合的考核方式,建设模拟药品生产企业的实训基地. 相似文献
5.
Twenty-five study sites were established along a 57-km-long transect in order to estimate the impact of an oil refinery, mainly
emitting sulphur dioxide (24000 t yr−1), on forest soil (F/H-horizon) chemistry and microbiology. The study demonstrated the existence of a pollution gradient which
was best represented by the logarithm of the concentration of vanadium in the analyzed F/H soil layer. Of the soil microbial
characteristics measured, including length of fungal hyphae, soil respiration, microbial biomass C and N, and percentage mass
loss of Scots pine (Pinus sylvestris) needle litter, only fungal hyphal length was suppressed by the pollution load. No reduction in basic cations (Ca, Mg, K,
and Na) in the F/H-horizon, or enrichment of soluble aluminum in the F/H-horizon of the Scots pine forest could be detected
to result from the deposition. 相似文献
6.
Effects of lactoferrin and lactoperoxidase‐containing food on the oral microbiota of older individuals 下载免费PDF全文
Manabu Nakano Hiroyuki Wakabayashi Hirosuke Sugahara Toshitaka Odamaki Koji Yamauchi Fumiaki Abe Jin‐Zhong Xiao Kohji Murakami Kentaro Ishikawa Shouji Hironaka 《Microbiology and immunology》2017,61(10):416-426
7.
Gamze Gülez 《Journal of microbiological methods》2010,82(3):324-326
To study bacterial behavior under varying hydration conditions similar to surface soil, we have developed a system called the Pressurized Porous Surface Model (PPSM). Thin liquid films created by imposing a matric potential of − 0.4 MPa impact gene expression and colony development in Pseudomonas putida. 相似文献
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10.
《Molecular & cellular proteomics : MCP》2020,19(3):518-528
Highlights
- •Discovery of peptide biomarker candidates of respiratory tract pathogens S. pneumoniae, H. influenzae, M. catarrhalis and S. aureus as target pathogens.
- •Peptide biomarker candidates were experimentally verified in clinical samples.
- •Targeted MS using promising peptide biomarker candidates shown as proof-of-concept.