6,374 results match your criteria Bacteroides Infection

Succession and change of potential pathogens in the co-composting of rural sewage sludge and food waste.

Waste Manag 2022 Jun 24;149:248-258. Epub 2022 Jun 24.

State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China. Electronic address:

Composting is an effective way to prevent and control the spread of pathogenic microorganisms which could put potential risk to humans and environment, from rural solid waste, especially sewage sludge and food waste. In the study, we aim to analyze the changes of pathogenic bacteria during the co-composting of rural sewage sludge and food waste. The results showed that only 27 pathogenic bacteria were detected after composting, compared to 50 pathogenic bacteria in the raw mixed pile. Read More

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Modulation of Iron Import and Metronidazole Resistance in Harboring a Gene.

Front Microbiol 2022 9;13:898453. Epub 2022 Jun 9.

Institute for Specific Prophylaxis and Tropical Medicine Center for Pathophysiology, Infectiology, and Immunology, Medical University of Vienna, Vienna, Austria.

is a commensal of the human gut but can also cause severe infections when reaching other body sites, especially after surgery or intestinal trauma. is an anaerobe innately susceptible to metronidazole, a 5-nitroimidazole drug that is prescribed against the majority of infections caused by anaerobic bacteria. In most of the cases, metronidazole treatment is effective but a fraction of . Read More

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Alterations in the jejunal microbiota and fecal metabolite profiles of rabbits infected with Eimeria intestinalis.

Parasit Vectors 2022 Jun 26;15(1):231. Epub 2022 Jun 26.

College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China.

Background: Rabbit coccidiosis is a major disease caused by various Eimeria species and causes enormous economic losses to the rabbit industry. Coccidia infection has a wide impact on the gut microbiota and intestinal biochemical equilibrium. In the present study, we established a model of Eimeria intestinalis infection in rabbits to evaluate the jejunal microbiota and fecal metabolite profiles. Read More

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Longitudinal alterations of the gut mycobiota and microbiota on COVID-19 severity.

BMC Infect Dis 2022 Jun 24;22(1):572. Epub 2022 Jun 24.

Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.

Background: The impact of SARS-CoV-2 infection on the gut fungal (mycobiota) and bacterial (microbiota) communities has been elucidated individually. This study analyzed both gut mycobiota and microbiota and their correlation in the COVID-19 patients with severe and mild conditions and follow-up to monitor their alterations after recovery.

Methods: We analyzed the gut mycobiota and microbiota by bacterial 16S and fungal ITS1 metagenomic sequencing of 40 severe patients, 38 mild patients, and 30 healthy individuals and reanalyzed those of 10 patients with severe COVID-19 approximately 6 months after discharge. Read More

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Carbapenem resistance in Bacteroides fragilis: A review of molecular mechanisms.

Anaerobe 2022 Jun 20;76:102606. Epub 2022 Jun 20.

Institute of Medical Microbiology, Albert Szent-Györgyi Health Centre and School of of Medicine, University of Szeged, Szeged, Hungary. Electronic address:

Carbapenems are an applicable subclass of β-lactam drugs in the antibiotic therapy of anaerobic infections, especially for poly-microbial cases, due to their broad antimicrobial spectrum on aerobic and anaerobic bacteria. Bacteroides fragilis is the most commonly recovered anaerobic bacteria in the clinical laboratories from mono- and poly-microbial infections. B. Read More

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Detangling Seasonal Relationships of Fecal Contamination Sources and Correlates with Indicators in Michigan Watersheds.

Microbiol Spectr 2022 Jun 22:e0041522. Epub 2022 Jun 22.

Department of Earth and Environmental Sciences, College of Natural Science, Michigan State Universitygrid.17088.36, East Lansing, Michigan, USA.

Despite the widely acknowledged public health impacts of surface water fecal contamination, there is limited understanding of seasonal effects on (i) fate and transport processes and (ii) the mechanisms by which they contribute to water quality impairment. Quantifying relationships between land use, chemical parameters, and fecal bacterial concentrations in watersheds can help guide the monitoring and control of microbial water quality and explain seasonal differences. The goals of this study were to (i) identify seasonal differences in Escherichia coli and Bacteroides thetaiotaomicron concentrations, (ii) evaluate environmental drivers influencing microbial contamination during baseflow, snowmelt, and summer rain seasons, and (iii) relate seasonal changes in B. Read More

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Characterization of inositol lipid metabolism in gut-associated Bacteroidetes.

Nat Microbiol 2022 Jun 20. Epub 2022 Jun 20.

Department of Microbiome Science, Max Planck Institute for Biology Tübingen, Tübingen, Germany.

Inositol lipids are ubiquitous in eukaryotes and have finely tuned roles in cellular signalling and membrane homoeostasis. In Bacteria, however, inositol lipid production is relatively rare. Recently, the prominent human gut bacterium Bacteroides thetaiotaomicron (BT) was reported to produce inositol lipids and sphingolipids, but the pathways remain ambiguous and their prevalence unclear. Read More

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Riboflavin Attenuates Influenza Virus Through Cytokine-Mediated Effects on the Diversity of the Gut Microbiota in MAIT Cell Deficiency Mice.

Front Microbiol 2022 3;13:916580. Epub 2022 Jun 3.

College of Veterinary Medicine, Jilin Agricultural University, Changchun, China.

Influenza is a serious respiratory disease that continues to threaten global health. Mucosa-associated invariant T (MAIT) cells use T-cell receptors (TCRs) that recognize microbial riboflavin derived intermediates presented by the major histocompatibility complex (MHC) class I-like protein MR1. Riboflavin synthesis is broadly conserved, but the roles or mechanisms of riboflavin in MR1 mouse influenza infection are not well understood. Read More

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Elevated Fecal Mitochondrial DNA from Symptomatic Norovirus Infections Suggests Potential Health Relevance of Human Mitochondrial DNA in Fecal Source Tracking.

Environ Sci Technol Lett 2022 Jun 18;9(6):543-550. Epub 2022 May 18.

Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States.

An end goal of fecal source tracking (FST) is to provide information on risk of transmission of waterborne illnesses associated with fecal contamination. Ideally, concentrations of FST markers in ambient waters would reflect exposure risk. Human mtDNA is an FST marker that is exclusively human in origin and may be elevated in feces of individuals experiencing gastrointestinal inflammation. Read More

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Alteration of gut bacteria composition among individuals with asymptomatic Blastocystis infection: A case-control study.

Microb Pathog 2022 Jun 16;169:105639. Epub 2022 Jun 16.

Zoonoses Research Center, Jahrom University of Medical Sciences, Jahrom, Iran; Department of Parasitology and Mycology, Jahrom University of Medical Sciences, Jahrom, Iran. Electronic address:

The gut microbiota consists a diverse and complex ecosystem that is involved in beneficial functions as well as potentially harmful conditions for human. Blastocystis sp. is a common parasite of the digestive tract of animals and humans; however, limited data is available concerning the association of asymptomatic Blastocystis infection and gut bacteria composition. Read More

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Bacteroides fragilis Bacteremia Complicated by Spondylodiscitis, Spinal Epidural Abscess, and Sepsis: A Case Report.

Am J Case Rep 2022 Jun 16;23:e936179. Epub 2022 Jun 16.

Department of Orthopaedic and Spine Surgery, Evangelismos Hospital, Paphos, Cyprus.

BACKGROUND Pyogenic spondylitis comprises several clinical entities, including native vertebral osteomyelitis, septic discitis, pyogenic spondylodiscitis, and epidural abscess. The lumbar spine is most often infected, followed by the thoracic and cervical areas. It mainly develops (i) after spine surgery; (ii) from history of blunt trauma to the spinal column; (iii) from infections in adjacent structures (such as soft tissues); (iv) from iatrogenic inoculation after invasive procedures (such as lumbar puncture); and (v) from hematogenous bacterial spread to the vertebra (mainly through the venous route). Read More

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Time for Some Group Therapy: Update on Identification, Antimicrobial Resistance, Taxonomy, and Clinical Significance of the Bacteroides fragilis Group.

J Clin Microbiol 2022 Jun 14:e0236120. Epub 2022 Jun 14.

Department of Pathology & Immunology, Division of Laboratory and Genomic Medicine, Washington University School of Medicine, St. Louis, Missouri, USA.

Bacteroides fragilis group (BFG) species are common members of the human microbiota that provide several benefits to healthy hosts, yet BFG are also the most common anaerobes isolated from human infections, including intra-abdominal infections, abscesses, and bloodstream infection. Compared to many other anaerobes associated with disease, members of the BFG are more likely to be resistant to commonly used antimicrobials, including penicillin (>90% resistant), carbapenems (2 to 20% resistant), and metronidazole (0.2 to 4% resistant). Read More

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Linking gastrointestinal microbiota and metabolome dynamics to clinical outcomes in paediatric haematopoietic stem cell transplantation.

Microbiome 2022 Jun 10;10(1):89. Epub 2022 Jun 10.

Infection, Immunity and Inflammation Section, UCL Great Ormond Street Institute of Child Health, London, WC1N 1EH, UK.

Background: Haematopoietic stem cell transplantation is a curative procedure for a variety of conditions. Despite major advances, a plethora of adverse clinical outcomes can develop post-transplantation including graft-versus-host disease and infections, which remain the major causes of morbidity and mortality. There is increasing evidence that the gastrointestinal microbiota is associated with clinical outcomes post-haematopoietic stem cell transplantation. Read More

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Systematic review of donor and recipient predictive biomarkers of response to faecal microbiota transplantation in patients with ulcerative colitis.

EBioMedicine 2022 May 31;81:104088. Epub 2022 May 31.

University of Birmingham Microbiome Treatment Centre, Birmingham, UK; Institute of Cancer and Genomic Sciences, University of Birmingham, UK; University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK. Electronic address:

Background: Faecal microbiota transplantation (FMT) has previously been explored as a treatment for ulcerative colitis (UC) however, biomarkers that predict and / or are associated with clinical response are poorly defined. The aim of this systematic review was to identify donor and recipient clinical, microbial and metabolomic predictive biomarkers of response to FMT in UC.

Methods: A systematic search of the relevant literature of studies exploring FMT in UC was conducted. Read More

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Gut microbiome profiles and associated metabolic pathways in patients of adult-onset immunodeficiency with anti-interferon-gamma autoantibodies.

Sci Rep 2022 Jun 1;12(1):9126. Epub 2022 Jun 1.

Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 33305, Taiwan.

Autoantibodies against interferon-gamma (AutoAbs-IFN-γ) can cause the immunodeficiency condition following various opportunistic infections. Gut microbiota can affect the human immune system in many ways. Many studies have shown that gut dysbiosis was associated with some immune diseases, such as autoimmune diseases and human immunodeficiency virus (HIV) infection, while its relationship at anti-IFN-γ AAbs remains unknown. Read More

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Vaginal microbiota signatures in healthy and purulent vulvar discharge sows.

Sci Rep 2022 Jun 1;12(1):9106. Epub 2022 Jun 1.

Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 87, Sao Paulo, SP, 05508-270, Brazil.

Purulent vulvar discharges, primarily caused by genito-urinary tract infections, are an important source of economic loss for swine producers due to sow culling and mortality. However, the agents that compose the vaginal microbiota of sows and their changes during infections are not well understood. The first goal of this study was to characterize and compare the vaginal bacterial content of healthy (HE, n = 40) and purulent vulvar discharge sows (VD, n = 270) by a culture-dependent method and MALDI-TOF MS identification. Read More

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, gastric microbiota and gastric cancer relationship: Unrolling the tangle.

World J Gastrointest Oncol 2022 May;14(5):959-972

Department of Internal Medicine, Second Medical Clinic, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki 41336, Macedonia, Greece.

infection (I) represents a typical microbial agent intervening in the complex mechanisms of gastric homeostasis by disturbing the balance between the host gastric microbiota and mucosa-related factors, leading to inflammatory changes, dysbiosis and eventually gastric cancer. The normal gastric microbiota shows diversity, with [ () belongs to this family], , , and being the most abundant phyla. Most studies indicate that has inhibitory effects on the colonization of other bacteria, harboring a lower diversity of them in the stomach. Read More

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Interactions between Enterohemorrhagic Escherichia coli (EHEC) and Gut Commensals at the Interface of Human Colonoids.

mBio 2022 May 31:e0132122. Epub 2022 May 31.

Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.

The interactions between the gut microbiota and pathogens are complex and can determine the outcome of an infection. Enterohemorrhagic Escherichia coli (EHEC) is a major human enteric pathogen that colonizes the colon through attaching and effacing (AE) lesions and uses microbiota-derived molecules as cues to control its virulence. Different gut commensals can modulate EHEC virulence. Read More

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Oral Bacteria and Their Antibiotic Susceptibilities in Taiwanese Venomous Snakes.

Microorganisms 2022 Apr 30;10(5). Epub 2022 Apr 30.

Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan.

Wound infections after venomous snakebites are clinically important. Information regarding the nature and antibiotic susceptibilities of snake oral bacterial flora could support empiric antibiotic therapy. Wild venomous snakes were collected from southern Taiwan: a total of 30 each of , , and ; 3 ; and 4 . Read More

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Intestinal microbiota composition of children with infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and multisystem inflammatory syndrome (MIS-C).

Eur J Pediatr 2022 May 19. Epub 2022 May 19.

Department of Pediatrics, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, TR-26040, Turkey.

Microbiota composition may play a role in the development, prognosis, or post-infection of COVID-19. There are studies evaluating the microbiota composition at the time of diagnosis and during the course of COVID-19, especially in adults, while studies in children are limited and no study available in children with multisystem inflammatory syndrome in children (MIS-C). This study was planned to compare intestinal microbiota composition in children diagnosed with MIS-C and acute COVID-19 infection with healthy children. Read More

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Metagenomic Shotgun Sequencing of Endocervical, Vaginal, and Rectal Samples among Fijian Women with and without Chlamydia trachomatis Reveals Disparate Microbial Populations and Function across Anatomic Sites: a Pilot Study.

Microbiol Spectr 2022 May 17:e0010522. Epub 2022 May 17.

Department of Pediatrics, University of California San Francisco, Oakland, California, USA.

Chlamydia trachomatis is a sexually transmitted pathogen and a global public health concern. Little is known about the microbial composition and function across endocervical, vaginal, and rectal microbiomes in the context of C. trachomatis infection. Read More

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Commensal bacteria-derived extracellular vesicles suppress ulcerative colitis through regulating the macrophages polarization and remodeling the gut microbiota.

Microb Cell Fact 2022 May 16;21(1):88. Epub 2022 May 16.

Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Road, Guangzhou, 510515, China.

Background: The extracellular vesicles (EVs) traffic constitutes an essential pathway of cellular communication. And the molecules in EVs produced by procaryotes help in maintaining homeostasis, addressing microbial imbalance and infections, and regulating the immune system. Despite the fact that Clostridium butyricum (C. Read More

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Anaerobic bloodstream infections in Italy (ITANAEROBY): A 5-year retrospective nationwide survey.

Anaerobe 2022 Jun 11;75:102583. Epub 2022 May 11.

Interdisciplinary Department of Medicine (DIM), University of Bari "Aldo Moro", Policlinico, Bari, Italy. Electronic address:

Introduction: A lack of updated data on the burden and profile of anaerobic bloodstream infections (ABIs) exists. We assessed the incidence of ABIs and trends in antimicrobial resistance in anaerobes isolated from blood in Italy.

Material And Methods: We conducted a retrospective study on 17 Italian hospitals (2016-2020). Read More

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Changes in the intestinal microbiota of Pacific white shrimp (Litopenaeus vannamei) with different severities of Enterocytozoon hepatopenaei infection.

J Invertebr Pathol 2022 06 11;191:107763. Epub 2022 May 11.

Jiangsu Marine Fisheries Research Institute, Nantong 226007, China.

The intestinal microbiota of the Pacific white shrimp Litopenaeus vannamei during Enterocytozoon hepatopenaei (EHP) infection was investigated by 16S rRNA gene-based analysis. The results showed that bacterial diversity in the intestine of L. vannamei was high, but it decreased with increasing severity of EHP infection. Read More

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Comparison between diagnostic performance of intestinal Fusobacterium nucleatum, Bacteroides fragilis and Escherichia coli in 5-fluorouracil resistance to colorectal cancer: A meta‑analysis.

Cancer Treat Res Commun 2022 Feb 22;32:100536. Epub 2022 Feb 22.

Institute of Clinical Pharmacology, Peking University First Hospital, Beijing,100034 China; Institute of Clinical Pharmacology, Peking University First Hospital, Beijing,100191 China. Electronic address:

Background: Intestinal Fusobacterium nucleatum (F. nucleatum) infection has been implicated into the progression of colorectal cancer (CRC). However, F. Read More

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February 2022

Rainfall leads to elevated levels of antibiotic resistance genes within seawater at an Australian beach.

Environ Pollut 2022 Aug 10;307:119456. Epub 2022 May 10.

Climate Change Cluster Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia. Electronic address:

Anthropogenic waste streams can be major sources of antibiotic resistant microbes within the environment, creating a potential risk to public health. We examined patterns in the occurrence of a suite of antibiotic resistance genes (ARGs) and their links to enteric bacteria at a popular swimming beach in Australia that experiences intermittent contamination by sewage, with potential points of input including stormwater drains and a coastal lagoon. Samples were collected throughout a significant rainfall event (40. Read More

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The functional role of fecal microbiota transplantation on Salmonella Enteritidis infection in chicks.

Vet Microbiol 2022 Jun 5;269:109449. Epub 2022 May 5.

Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, PR China; School of Life Sciences, Shandong Normal University, Jinan 250014, PR China; Key Laboratory of Livestock and Poultry Multi-omics of MARA, Jinan 250100, PR China. Electronic address:

The intestinal microbiota plays important roles in animal health and growth. We investigated the efficacy and mechanisms of fecal microbiota transplantation (FMT) from adult SPF chickens against Salmonella Enteritidis (SE) infection in chicks. We transplanted 160 recipient SPF chicks (1-day-old) that were randomly divided into four groups, Ca (challenge), Cb (non-challenge), Fa (FMT and challenge) and Fb (FMT without challenge). Read More

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Longitudinal and Comparative Analysis of Gut Microbiota of Tunisian Newborns According to Delivery Mode.

Front Microbiol 2022 25;13:780568. Epub 2022 Apr 25.

Laboratory of Bioinformatics, bioMathematics and Biostatistics-LR16IPT09, Institut Pasteur de Tunis, Université de Tunis El Manar, Tunis, Tunisia.

Microbiota colonization is a dynamic process that impacts the health status during an individual's lifetime. The composition of the gut microbiota of newborns is conditioned by multiple factors, including the delivery mode (DM). Nonetheless, the DM's influence remains uncertain and is still the subject of debate. Read More

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Single and Combined Effects of and Coccidiosis Vaccine on Growth Performance and the Intestinal Microbiome of Broiler Chickens.

Front Microbiol 2022 25;13:811428. Epub 2022 Apr 25.

Zhaoqing/Maoming Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.

Avian coccidiosis is an important intestinal protozoan disease that has caused major economic losses to the poultry industry. can not only maintain the stability of the intestinal barrier, but can also improve the production performance of broiler chickens. We studied the effects of feeding alone, administration of coccidiosis vaccine alone, and the combined administration of and coccidiosis vaccine on body weight gain, feed consumption, and feed conversion ratio of broilers. Read More

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Clinico-microbiological profile of with focus on molecular detection of emerging resistance.

Indian J Med Res 2021 05;154(5):750-756

Department of Microbiology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India.

Background & Objective: Bacteroides fragilis is a Gram-negative anaerobic opportunistic pathogen which is managed by empirical anaerobic coverage as a hospital norm. However, with rising reports of resistance among B. fragilis strains, antibiotic susceptibility testing for this pathogen may be the only way to understand the magnitude of the problem. Read More

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