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Effect of intestinal microbiota transplantation on chronic hepatitis B virus infection associated liver disease 肠道微生物群移植对慢性乙型肝炎病毒感染相关肝病的影响
IF 5.2 2区 生物学
Frontiers in Microbiology Pub Date : 2024-09-11 DOI: 10.3389/fmicb.2024.1458754
Lisi Deng, Xiaozhen Guo, Jiehua Chen, Baoyi Li, Na Liu, Jinyu Xia, Mengdang Ou, Zhongsi Hong
{"title":"Effect of intestinal microbiota transplantation on chronic hepatitis B virus infection associated liver disease","authors":"Lisi Deng, Xiaozhen Guo, Jiehua Chen, Baoyi Li, Na Liu, Jinyu Xia, Mengdang Ou, Zhongsi Hong","doi":"10.3389/fmicb.2024.1458754","DOIUrl":"https://doi.org/10.3389/fmicb.2024.1458754","url":null,"abstract":"BackgroundResearch on the effects of intestinal microbiota transplantation (IMT) on chronic HBV infection (CHB) progression associated liver disease (HBV-CLD) and alterations in the microbiota post-IMT are quite limited for the moment.MethodsBy integrating microbiome with metabolome analyses, we aimed to the function of IMT and the alterations of gut microbiota in patients with HBV-CLD. First, this study included 20 patients with HBV-CLD and ten healthy controls. Then, 16 patients with CHB were given IMT with donor feces (heterologous) via oral capsule. Fecal samples from CHB patients were obtained before and after IMT, as well as healthy controls, for 16S rDNA sequencing and untargeted metabolomics analysis.ResultsThe proalbuminemia were significantly increased after IMT, and the HBsAg and TBA showed a significant decrease after IMT in the HBV-CLD patients. There was statistical difference in the Chaol indexes between between CHB patients and healthy controls, suggesting a lower abundance of the gut microbiota in HBV-CLD patients. In addition, there was statistical difference in the Shannon and Simpson indexes between prior to IMT and post-IMT, indicating that the impaired abundance of the gut microbiota had been improved after IMT. The host-microbiota-metabolite interplay, amino acid metabolism, nicotinate and nicotinamide metabolism, starch and sucrose metabolism, steroid biosynthesis, and vitamins metabolism, were significantly lower in HBV-CLD patients than healthy controls.ConclusionIMT may improve the therapeutic effects on patients HBV-CLD. Furthermore, IMT appears to improve amino acid metabolism by impaired abundance of the gut microbiota and therefore improve liver prealbumin synthesis.","PeriodicalId":12466,"journal":{"name":"Frontiers in Microbiology","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unveiling the vital role of soil microorganisms in selenium cycling: a review 揭示土壤微生物在硒循环中的重要作用:综述
IF 5.2 2区 生物学
Frontiers in Microbiology Pub Date : 2024-09-11 DOI: 10.3389/fmicb.2024.1448539
Zhihui Jiang, Zhiyong Wang, Yong Zhao, Mu Peng
{"title":"Unveiling the vital role of soil microorganisms in selenium cycling: a review","authors":"Zhihui Jiang, Zhiyong Wang, Yong Zhao, Mu Peng","doi":"10.3389/fmicb.2024.1448539","DOIUrl":"https://doi.org/10.3389/fmicb.2024.1448539","url":null,"abstract":"Selenium (Se) is a vital trace element integral to numerous biological processes in both plants and animals, with significant impacts on soil health and ecosystem stability. This review explores how soil microorganisms facilitate Se transformations through reduction, oxidation, methylation, and demethylation processes, thereby influencing the bioavailability and ecological functions of Se. The microbial reduction of Se compounds, particularly the conversion of selenate and selenite to elemental Se nanoparticles (SeNPs), enhances Se assimilation by plants and impacts soil productivity. Key microbial taxa, including bacteria such as <jats:italic>Pseudomonas</jats:italic> and <jats:italic>Bacillu</jats:italic>s, exhibit diverse mechanisms for Se reduction and play a substantial role in the global Se cycle. Understanding these microbial processes is essential for advancing soil management practices and improving ecosystem health. This review underscores the intricate interactions between Se and soil microorganisms, emphasizing their significance in maintaining ecological balance and promoting sustainable agricultural practices.","PeriodicalId":12466,"journal":{"name":"Frontiers in Microbiology","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microbiome and response surface methodology analyses reveal Acetobacter pasteurianus as the core bacteria responsible for aerobic spoilage of corn silage (Zea mays) in hot and humid areas 微生物组和响应面方法分析显示,巴氏醋酸杆菌是导致湿热地区玉米青贮(玉米)需氧腐败的核心细菌
IF 5.2 2区 生物学
Frontiers in Microbiology Pub Date : 2024-09-11 DOI: 10.3389/fmicb.2024.1473238
Rui Bai, Haiping Li, Shiyong Chen, Xianjun Yuan, Youjun Chen, Yanling Huang, Qingping Zhou, Hao Guan
{"title":"Microbiome and response surface methodology analyses reveal Acetobacter pasteurianus as the core bacteria responsible for aerobic spoilage of corn silage (Zea mays) in hot and humid areas","authors":"Rui Bai, Haiping Li, Shiyong Chen, Xianjun Yuan, Youjun Chen, Yanling Huang, Qingping Zhou, Hao Guan","doi":"10.3389/fmicb.2024.1473238","DOIUrl":"https://doi.org/10.3389/fmicb.2024.1473238","url":null,"abstract":"IntroductionWeak aerobic stability is a notable challenge for whole-plant corn silage, particularly in hot and humid regions. <jats:italic>Acetobacter</jats:italic> is commonly regarded as an indicator of aerobic deterioration in silage, yet its precise role in fermentation and during aerobic exposure, as well as the factors that promote its growth, remain insufficiently understood.MethodsIn this study, whole-plant corn silage was prepared using a bagged method with controlled dry matter (DM) content at 20%, 25%, and 30%, and initial concentrations of <jats:italic>A. pasteurianus</jats:italic> at 40%, 50%, and 60%. The silage was stored for 60 days under varying temperatures (20°C, 30°C, and 40°C). Following the anaerobic storage phase, the silage was exposed to air at room temperature (20-25°C) for 7 days, both with and without <jats:italic>A. pasteurianus</jats:italic> inoculation.ResultsThe results demonstrated that <jats:italic>A. pasteurianus</jats:italic> did not impact the nutritional value of the silage during anaerobic fermentation, maintaining a low pH (&amp;lt; 3.80). However, during aerobic exposure, the presence of <jats:italic>A. pasteurianus</jats:italic> significantly reduced the aerobic stability of the silage. The microbial community shifted from primarily <jats:italic>Klebsiella</jats:italic> species initially to <jats:italic>Lactobacillus</jats:italic> and <jats:italic>Acetobacter</jats:italic> species post-ensiling. During the aerobic exposure phase, <jats:italic>A. pasteurianus</jats:italic> and <jats:italic>A. fabarum</jats:italic> became the dominant species. Response Surface Methodology (RSM) analysis identified optimal conditions for the proliferation of <jats:italic>A. pasteurianus</jats:italic> during the aerobic phase, which occurred at 28°C, 25% DM, and 52% initial concentration at 3 ml/kg.DiscussionThese findings confirm that <jats:italic>A. pasteurianus</jats:italic> plays a critical role in reducing the aerobic stability of whole-plant corn silage. Additionally, the study identifies the optimal conditions that favor the proliferation of <jats:italic>A. pasteurianus</jats:italic>, offering valuable insights for the development of strategies to prevent and control this bacterium, thereby improving the aerobic stability of silage in hot and humid regions.","PeriodicalId":12466,"journal":{"name":"Frontiers in Microbiology","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of a linezolid-resistant Staphylococcus epidermidis outbreak in a French hospital: phenotypic, genotypic, and clinical characterization 法国一家医院爆发的耐利奈唑胺表皮葡萄球菌疫情调查:表型、基因型和临床特征描述
IF 5.2 2区 生物学
Frontiers in Microbiology Pub Date : 2024-09-11 DOI: 10.3389/fmicb.2024.1455945
Nadège Lépine, José Bras-Cachinho, Eva Couratin, Coralie Lemaire, Laura Chaufour, Armelle Junchat, Marie-Frédérique Lartigue
{"title":"Investigation of a linezolid-resistant Staphylococcus epidermidis outbreak in a French hospital: phenotypic, genotypic, and clinical characterization","authors":"Nadège Lépine, José Bras-Cachinho, Eva Couratin, Coralie Lemaire, Laura Chaufour, Armelle Junchat, Marie-Frédérique Lartigue","doi":"10.3389/fmicb.2024.1455945","DOIUrl":"https://doi.org/10.3389/fmicb.2024.1455945","url":null,"abstract":"PurposeWe aimed to retrospectively investigate an outbreak of linezolid-resistant <jats:italic>Staphylococcus epidermidis</jats:italic> (LRSE), at Tours University Hospital between 2017 and 2021.MethodsTwenty of the 34 LRSE isolates were included in the study. Antimicrobial susceptibility testing was performed using the disk diffusion method and MICs of last-resort antibiotics were determined using broth microdilution or Etest<jats:sup>®</jats:sup>. Seventeen of the 20 resistant strains were sent to the French National Reference Centre for <jats:italic>Staphylococci</jats:italic> to determine the mechanism of resistance to linezolid. The clonal relationship between LRSE strains was assessed by PFGE and the sequence type determined by MLST. We retrospectively evaluated a new typing tool, IR-Biotyper<jats:sup>®</jats:sup>, and compared its results to PFGE to evaluate its relevance for <jats:italic>S. epidermidis</jats:italic> typing. Medical records were reviewed, and antibiotic consumption was determined. Search for a cross transmission was performed.ResultsAll LRSE strains showed high levels of resistance to linezolid (MICs ≥ 256 mg/L) and were multi-drug resistant. Linezolid resistance was associated with the 23S rRNA G2576T mutation and none of the 17 strains analyzed carried the <jats:italic>cfr</jats:italic> gene. Ninety-five percent of the 20 LRSE studied strains were genetically related and belonged to sequence-type ST2. The dendrogram obtained from IR-Biotyper<jats:sup>®</jats:sup> showed 87% congruence with the PFGE analysis. Prior to isolation of the LRSE strain, 70% of patients received linezolid. No patients stayed successively in the same room.ConclusionLinezolid exposure may promote the survival and spread of LRSE strains. At Tours University Hospital, acquisition of the resistant clone may also have been triggered by hand-to-hand transmission by healthcare workers. In addition, IR-Biotyper<jats:sup>®</jats:sup> is a promising typing tool for the study of clonal outbreaks due to its low cost and short turnaround time, although further studies are needed to assess the optimal analytical parameters for routine use.","PeriodicalId":12466,"journal":{"name":"Frontiers in Microbiology","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metagenomic insights into traditional fermentation of rice-based beverages among ethnic tribes in southern Assam, Northeast India 元基因组学对印度东北部阿萨姆邦南部少数民族大米饮料传统发酵的启示
IF 5.2 2区 生物学
Frontiers in Microbiology Pub Date : 2024-09-11 DOI: 10.3389/fmicb.2024.1410098
Hanna Yumnam, Parijat Hazarika, Indu Sharma
{"title":"Metagenomic insights into traditional fermentation of rice-based beverages among ethnic tribes in southern Assam, Northeast India","authors":"Hanna Yumnam, Parijat Hazarika, Indu Sharma","doi":"10.3389/fmicb.2024.1410098","DOIUrl":"https://doi.org/10.3389/fmicb.2024.1410098","url":null,"abstract":"IntroductionTraditional fermented foods have long been recognized for their numerous health benefits along with their potential to aid in the treatment of gastrointestinal disorders. These fermented foods have been shown to promote gut health and contribute to a longer, healthier life.MethodsThe high-throughput sequencing using the Illumina MiSeq platform was employed to investigate the microbiome communities of rice-based fermented beverages consumed by ethnic tribes in Southern Assam, namely Zeme Naga, Dimasa Kachari, Hmar, Karbi and Tea tribes.ResultsThe fermented rice-based beverages were highly predominated by <jats:italic>Firmicutes, Bacteroides, Proteobacteria</jats:italic>, and <jats:italic>Actinobacteria</jats:italic> exhibiting the highest relative abundance across all tribes. At genus level, significant abundance of <jats:italic>pediococcus, lactobacillus, bacillus, leuconostoc, acetobacter, staphylococcus, delftia, erwinia, klebsiella</jats:italic> and <jats:italic>chrysebacterium</jats:italic> were found amongst these ethnic tribes.DiscussionUnderstanding the fermented food microbiome will help to know the relationships between microbial communities and their effect on health of humans amongst the tribes. Furthermore, the use of these fermented products could provide enhanced health benefits to southern Assam region of India.","PeriodicalId":12466,"journal":{"name":"Frontiers in Microbiology","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Isolation and identification, genome-wide analysis and pathogenicity study of a novel PRRSV-1 in southern China 中国南方新型 PRRSV-1 的分离鉴定、全基因组分析和致病性研究
IF 5.2 2区 生物学
Frontiers in Microbiology Pub Date : 2024-09-11 DOI: 10.3389/fmicb.2024.1465449
Huirui Xu, Yongsheng Xie, Kehui Deng, Dongsheng He
{"title":"Isolation and identification, genome-wide analysis and pathogenicity study of a novel PRRSV-1 in southern China","authors":"Huirui Xu, Yongsheng Xie, Kehui Deng, Dongsheng He","doi":"10.3389/fmicb.2024.1465449","DOIUrl":"https://doi.org/10.3389/fmicb.2024.1465449","url":null,"abstract":"Porcine reproductive and respiratory syndrome virus (PRRSV) has caused severe economic losses to the global swine industry. In recent years, the incidence of PRRSV-1 has been gradually increasing in China, but there are still few studies on it. In this study, clinical samples for PRRS virus isolation were collected from a pig farm in South China in 2022. We effectively isolated a strain of PRRSV utilizing PAM cells and demonstrated its consistent transmission capability on Marc-145 cells. The isolated strain was confirmed as PRRSV-1 by RT-qPCR, IFA, electron microscopy, etiolated spot purification and whole genome sequencing, the strain was named GD2022. The length of GD2022 genome is 15058nt; Based on the genome-wide genetic evolutionary analysis of GD2022, the strain was classified as PRRSV-1. Further genetic evolutionary analysis of its ORF5 gene showed that GD2022 belonged to PRRSV-1 subtype 1 and formed an independent branch in the evolutionary tree. Compared with the sequence of the classical PRRSV-1 strain (LV strain), GD2022 has several amino acid site mutations in the antigenic region from GP3 to GP5, these mutations are different from those of other PRRSV-1 strains in China. Recombination analysis showed no recombination events with GD2022. In addition, piglets infected with GD2022 displayed clinical respiratory symptoms and typical pathological changes. In this study, a strain of the PRRSV-1 virus was isolated using both PAM cells and Marc-145 and proved to be pathogenic to piglets, providing an important reference for the identification, prevention, and control of PRRSV-1.","PeriodicalId":12466,"journal":{"name":"Frontiers in Microbiology","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bacterial dynamics in the progression of caries to apical periodontitis in primary teeth of children with severe early childhood caries 儿童早期严重龋齿患儿基牙龋齿发展为根尖牙周炎的细菌动态变化
IF 5.2 2区 生物学
Frontiers in Microbiology Pub Date : 2024-09-11 DOI: 10.3389/fmicb.2024.1418261
Bichen Lin, Jinfeng Wang, Yifei Zhang
{"title":"Bacterial dynamics in the progression of caries to apical periodontitis in primary teeth of children with severe early childhood caries","authors":"Bichen Lin, Jinfeng Wang, Yifei Zhang","doi":"10.3389/fmicb.2024.1418261","DOIUrl":"https://doi.org/10.3389/fmicb.2024.1418261","url":null,"abstract":"BackgroundEarly childhood caries (ECC) are a prevalent chronic disease in young children. However, there has been limited research on the microbiota in different tissue levels of the same tooth in children with ECC. This study aimed to investigate the dynamic changes in bacterial diversity during the progression of Severe Early Childhood Caries (S-ECC) within the same tooth, from the tooth surface to the root canal, by collecting tissue samples from different areas of the affected tooth.MethodsTwenty primary teeth with periapical periodontitis were selected from 20 children aged 3–5 years, with 100 samples collected from the different layers: uncavitated buccal enamel surface without white spot lesion (surface), the outermost layer of the dentin carious lesion (superficial), the inner layer of carious dentin (deep), necrotic pulp tissue (pulp), and root exudate (exudate). The taxonomy of each OTU representative sequence was analyzed against the 16S rRNA database. Comparisons of alpha diversity between groups were performed. The number of shared and unique genera between groups counted. Beta diversity was contrasted to evaluate differences in bacterial community composition, and the relationships between the microbiota and samples were analyzed. The heatmap analysis of the 30 most abundant genera was used, which highlighted their relative distribution and abundance. The significantly abundant taxa (phylum to genera) of bacteria among the different groups were identified. The differences of relative abundance between bacterial genera among the five groups were analyzed. Significant Spearman correlations were noted, and visualization of the co-occurrence network was conducted.ResultsBacterial 16S rRNA gene sequencing showed that most genera were present in all layers, with the number of shared genera increasing as the disease advanced. The bacterial communities and core genera in the co-occurrence network changed with progression to severe ECC.ConclusionAn increase in both the quantity and complexity of bacterial interactions was observed. This study emphasized the importance of paying attention to the relationship between microbial species rather than just checking changes in bacterial species structure when investigating the role of bacteria in disease progression.","PeriodicalId":12466,"journal":{"name":"Frontiers in Microbiology","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stochastic processes drive the dynamic assembly of bacterial communities in Salix matsudana afforested soils 随机过程驱动沙柳造林土壤中细菌群落的动态组合
IF 5.2 2区 生物学
Frontiers in Microbiology Pub Date : 2024-09-11 DOI: 10.3389/fmicb.2024.1467813
Can Wang, Abolfazl Masoudi, Min Wang, Yin Wang, Ze Zhang, Jingkun Cao, Jian Feng, Zhijun Yu, Jingze Liu
{"title":"Stochastic processes drive the dynamic assembly of bacterial communities in Salix matsudana afforested soils","authors":"Can Wang, Abolfazl Masoudi, Min Wang, Yin Wang, Ze Zhang, Jingkun Cao, Jian Feng, Zhijun Yu, Jingze Liu","doi":"10.3389/fmicb.2024.1467813","DOIUrl":"https://doi.org/10.3389/fmicb.2024.1467813","url":null,"abstract":"IntroductionThis study investigates the dynamic shifts in soil bacterial communities within a <jats:italic>Salix matsudana</jats:italic> afforested ecosystem transitioning from agricultural land. Understanding the temporal variability in bacterial diversity and community structures is crucial for informing forest management and conservation strategies, particularly in regions undergoing afforestation.MethodsWe employed high-throughput sequencing across three distinct months (August, September, and October) to analyze the temporal variability in bacterial community composition and diversity. Network analysis was utilized to identify keystone species and assess community stability under varying environmental conditions, including fluctuations in temperature and precipitation.ResultsWe uncover significant temporal variability in bacterial diversity and community structures, which are closely tied to fluctuations in temperature and precipitation. Our findings reveal the abundance of the dominant bacterial phyla, such as Actinobacteria and Proteobacteria, which did not change overall, highlighting the stability and resilience of the microbial community across seasonal transitions. Notably, the increasing similarity in community composition from August to October indicates a reduction in species turnover, likely driven by more homogeneous environmental conditions. Through comprehensive network analysis, we identify the pivotal role of keystone species, particularly the human pathogen <jats:italic>Nocardia</jats:italic>, in maintaining community stability under reduced soil moisture. The observed variations in community connectivity underscore the microbial community’s resilience and adaptability to seasonal shifts, with higher stability in August and October contrasting with the instability observed in September.DiscussionThese results underscore the complex interplay between stochastic and deterministic processes in bacterial community assembly, significantly shaped by prevailing environmental conditions. The insights gained from this research have far-reaching implications for forestry management and conservation strategies, particularly in regions undergoing similar afforestation efforts.","PeriodicalId":12466,"journal":{"name":"Frontiers in Microbiology","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antimicrobial resistance and genomic analysis of Vibrio parahaemolyticus isolates from foodborne outbreaks, Huzhou, China, 2019–2023 2019-2023年中国湖州食源性疫情中分离的副溶血性弧菌的抗菌药耐药性和基因组分析
IF 5.2 2区 生物学
Frontiers in Microbiology Pub Date : 2024-09-11 DOI: 10.3389/fmicb.2024.1439522
Wei Yan, Lei Ji, Fenfen Dong, Liping Chen, Rui Yuan, Peng Zhang
{"title":"Antimicrobial resistance and genomic analysis of Vibrio parahaemolyticus isolates from foodborne outbreaks, Huzhou, China, 2019–2023","authors":"Wei Yan, Lei Ji, Fenfen Dong, Liping Chen, Rui Yuan, Peng Zhang","doi":"10.3389/fmicb.2024.1439522","DOIUrl":"https://doi.org/10.3389/fmicb.2024.1439522","url":null,"abstract":"ObjectiveThe purpose of this study was to investigate the epidemiological and genomic characteristics of <jats:italic>Vibrio parahaemolyticus</jats:italic> (<jats:italic>V. parahaemolyticus</jats:italic>) isolates from outbreaks in Huzhou, China.MethodsThis study aims to analyze the epidemiological data on <jats:italic>V. parahaemolyticus</jats:italic> outbreaks reported in Huzhou from 2019 to 2023. A total of 70 <jats:italic>V. parahaemolyticus</jats:italic> outbreak isolates were collected. The antibiotic resistance, serotypes, molecular typing, and genomic characteristics of these isolates were analyzed.ResultsMost outbreaks of <jats:italic>V. parahaemolyticus</jats:italic> infection occurred in the summer, and the majority of outbreaks occurred in restaurants and rural banquets. High resistance rates were observed for ampicillin (AMP, 24.29%), followed by tetracycline (TET, 15.71%) and trimethoprim-sulfamethoxazole (SXT, 15.71%). The newly emerged serotype O10:K4 became dominant from 2021 to 2023, with most isolates belonging to ST3. The resistance gene <jats:italic>blaCARB</jats:italic> was frequently detected among these isolates. The pulsed-field gel electrophoresis (PFGE) and whole-genome single-nucleotide polymorphisms (wgSNPs) effectively differentiated the nine outbreaks.ConclusionThe newly emerged serotype O10:K4 became dominant from 2021 to 2023, with most isolates being ST3. PFGE and WGS technologies provided reliable methods for typing and identifying <jats:italic>V. parahaemolyticus</jats:italic> for outbreaks.","PeriodicalId":12466,"journal":{"name":"Frontiers in Microbiology","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The interaction between gut microbiota and hibernation in mammals 哺乳动物肠道微生物群与冬眠之间的相互作用
IF 5.2 2区 生物学
Frontiers in Microbiology Pub Date : 2024-09-11 DOI: 10.3389/fmicb.2024.1433675
Peng Gao, Wenjing Shen, Tingbei Bo
{"title":"The interaction between gut microbiota and hibernation in mammals","authors":"Peng Gao, Wenjing Shen, Tingbei Bo","doi":"10.3389/fmicb.2024.1433675","DOIUrl":"https://doi.org/10.3389/fmicb.2024.1433675","url":null,"abstract":"Hibernation, an evolved survival trait among animals, enables them to endure frigid temperatures and food scarcity during the winter months, and it is a widespread phenomenon observed in mammals. The gut microbiota, a crucial component of animal nutrition and health, exhibits particularly dynamic interactions in hibernating mammals. This manuscript comprehensively evaluates the impacts of fasting, hypothermia, and hypometabolism on the gut microbiota of hibernating mammals. It suggests that alterations in the gut microbiota may contribute significantly to the maintenance of energy metabolism and intestinal immune function during hibernation, mediated by their metabolites. By delving into these intricacies, we can gain a deeper understanding of how hibernating mammals adapt to their environments and the consequences of dietary modifications on the symbiotic relationship between the gut microbiota and the host. Additionally, this knowledge can inform our comprehension of the protective mechanisms underlying long-term fasting in non-hibernating species, including humans, providing valuable insights into nutritional strategies and health maintenance.","PeriodicalId":12466,"journal":{"name":"Frontiers in Microbiology","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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