574,697 results match your criteria: "a Institute of Microbiology; Bulgarian Academy of Sciences ; Sofia[Affiliation]"

Exploring the efficacy of drought tolerant, IAA-producing plant growth-promoting rhizobacteria for sustainable agriculture.

Plant Signal Behav

December 2025

Laboratory of Research and Teaching in Animal Health and Biotechnology, Bobo-Dioulasso, Burkina Faso.

The growing human population and abiotic stresses pose significant threats to food security, with PGPR favorable as biofertilizers for plant growth and stress relief. In one study, soil samples from both cultivated and uncultivated plants in various cities were used to isolate rhizobacterial populations. Using 50 soil samples from both cultivated and uncultivated plants, isolated rhizobacterial populations were screened for various biochemical changes, PGP activities and morphological characteristics.

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Purpose: The purpose of this study was to explore the therapeutic potential of the novel combination of Bacillus bacteriophage lysin (PlyB) and a synthetic TLR2/4 inhibitor (oxidized 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine, OxPAPC) in the treatment of experimental Bacillus cereus endophthalmitis.

Methods: C57BL/6J mice were injected with 100 colony forming units (CFUs) Bacillus cereus to induce endophthalmitis. Two hours postinfection, groups of mice were treated with either PlyB, PlyB with OxPAPC, or the groups were left untreated to serve as a control.

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Importance: Blood culture (BC) use benchmarks in US hospitals have not been defined.

Objective: To characterize BC use in adult intensive care units (ICUs) and wards in US hospitals.

Design, Setting, And Participants: A retrospective cross-sectional study of BC use in adult medical ICUs, medical-surgical ICUs, medical wards, and medical-surgical wards from acute care hospitals from the 4 US geographic regions was conducted.

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Microbiological and toxicity analyses of the synthetic polymer polyhexamethylene guanidine hydrochloride against endodontic microorganisms.

Braz J Microbiol

January 2025

Department of Postgraduate Program in Animal Science, University of Franca (UNIFRAN), Av. Dr. Armando Salles Oliveira, 201, Parque Universitário, Franca, SP, CEP 14.404-600, Brazil.

Failures in endodontic treatments are common due to microbial resistance in the pulp canal. The study evaluated the in vitro activity of polyhexamethylene guanidine hydrochloride (PHMGH) against endodontic strains, as well as in vivo toxicity. Using minimum inhibitory concentration and minimum bactericidal concentration techniques, PHMGH was effective against all microorganisms, even at low concentrations.

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Decontamination of DNA sequences from a Streptomyces genome for optimal genome mining.

Braz J Microbiol

January 2025

Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, SP, 05508-900, Brazil.

Despite meticulous precautions, contamination of genomic DNA samples is not uncommon, which can significantly compromise the analysis of microorganisms' whole-genome sequencing data, thus affecting all subsequent analyses. Thanks to advancements in software and bioinformatics techniques, it is now possible to address this issue and prevent the loss of the entire dataset obtained in a contaminated whole-genome sequencing, where the DNA of another bacterium is present. In this study, it was observed that the sequencing reads from Streptomyces sp.

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Quantification of Particle-Associated Viruses in Secondary Treated Wastewater Effluent.

Food Environ Virol

January 2025

Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, 1440 Canal Street, Suite 2100, New Orleans, LA, 70112, USA.

Viruses can interact with a broad range of inorganic and organic particles in water and wastewater. These associations can protect viruses from inactivation by quenching chemical disinfectants or blocking ultraviolet light transmission, and a much higher dosage of disinfectants is required to inactivate particle-associated viruses than free viruses. There have been only few studies of the association of viruses with particles in wastewater, particularly in secondary treated effluent.

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Background: Sugarcane is cultivated globally and affected by more than 125 pathogens, which lead to various plant diseases. In recent years, high-throughput sequencing (HTS)-based genome analyses have been broadly adopted for the discovery of both characterized and un-characterized viruses from plant samples. In this study, the HTS data of sugarcane pooled sample retrieved from sequence read archive (SRA) were de novo re-assembled using CLC Genomic Workbench.

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Reduced function or hypomorphic variants in recombination-activating genes (RAG) 1 or 2 result in a broad clinical phenotype including common variable immunodeficiency (CVID) and even adult-onset disease. Milder RAG variants are less characterized. Here we describe the longitudinal course of a milder combined RAG deficiency in 3 of 7 siblings sharing the same RAG2 mutations over a 50-year study.

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Tuberculosis (TB) remains a major global threat, with 10 million new cases and 1.5 million deaths each year. In multidrug-resistant tuberculosis (MDR-TB), resistance is most commonly observed against isoniazid (INH) and rifampicin (RIF), the two frontline drugs.

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Background: Antiseptic solutions are commonly utilized during total joint arthroplasty (TJA) to prevent and treat periprosthetic joint infection (PJI). The purpose of this study was to investigate which antiseptic solution is most effective against methicillin-sensitive Staphylococcus aureus (MSSA) and Escherichia coli biofilms established in vitro on orthopaedic surfaces commonly utilized in total knee arthroplasty: cobalt-chromium (CC), oxidized zirconium (OxZr), and polymethylmethacrylate (PMMA).

Methods: MSSA and E.

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Mutations disrupting the kinase domain of IKKα lead to immunodeficiency and immune dysregulation in humans.

J Exp Med

February 2025

Laboratory of Immunogenetics of Pediatric Autoimmune Diseases, INSERM UMR 1163, Imagine Institute, University Paris Cité, Paris, France.

IKKα, encoded by CHUK, is crucial in the non-canonical NF-κB pathway and part of the IKK complex activating the canonical pathway alongside IKKβ. The absence of IKKα causes fetal encasement syndrome in humans, fatal in utero, while an impaired IKKα-NIK interaction was reported in a single patient and causes combined immunodeficiency. Here, we describe compound heterozygous variants in the kinase domain of IKKα in a female patient with hypogammaglobulinemia, recurrent lung infections, and Hay-Wells syndrome-like features.

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Given the rapid cross-country spread of SARS-CoV-2 and the resulting difficulty in tracking lineage spread, we investigated the potential of combining mobile service data and fine-granular metadata (such as postal codes and genomic data) to advance integrated genomic surveillance of the pandemic in the federal state of Thuringia, Germany. We sequenced over 6500 SARS-CoV-2 Alpha genomes (B.1.

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sp. nov., a crude oil aggregation-forming anaerobic bacterium isolated from marine sediment.

Int J Syst Evol Microbiol

January 2025

Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan.

A crude oil aggregation-forming, strictly anaerobic, Gram-stain-positive, spore-forming, rod-shaped, motile and mesophilic bacterium, named strain SH18-2, was isolated from marine sediment near Sado Island in the Sea of Japan. The temperature, salinity and pH ranges of this strain for the growth were 15-40 °C (optimum 35 °C), 0.5-6.

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Complete genome sequence of GL-4.

Microbiol Resour Announc

January 2025

Guangxi Key Laboratory of Veterinary Biotechnology, Key Laboratory of China (Guangxi)-ASEAN Cross-border Animal Disease Prevention and Control, Ministry of Agriculture and Rural Affairs of China, Guangxi Veterinary Research Institute, Nanning, China.

A cellulase-producing was previously isolated from the intestinal tract of domestic bamboo rat and identified as GL-4. In this study, we present the complete genome sequence of GL-4. The genome is 4,271,214 bp long, with a guanine-cytosine content of 43.

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Metabolic dysfunction-associated steatohepatitis (MASH) is characterized by severe liver inflammation and fibrosis due to an imbalanced immune response caused by enhanced bacterial components. The progression of MASH is closely linked to increased permeability of intestinal mucosal barrier facilitating enter of bacterial components into hepatic portal venous system. B cells are important immune cells for adaptive responses and enhance hepatic inflammation through cytokine production and T cell activation.

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The draft genome sequence of DS1 was isolated for high-acidity vinegar fermentation. The DS1 draft genome has a length of 8,793,442 bp, with 44.27% GC content, 3,053 proteins, 3,169 genes, and 15 genes that play an important role in acetic acid production.

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Phylogenetic analyses are crucial for understanding microbial evolution and infectious disease transmission. Bacterial phylogenies are often inferred from SNP alignments, with SNPs as the fundamental signal within these data. SNP alignments can be reduced to a 'strict core' by removing those sites that do not have data present in every sample.

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Fermentation is crucial for inducing desirable flavor and aroma profiles in cocoa products. This research focused on identifying microbial strains isolated from spontaneous cocoa fermentation in Hainan through 16S and Internal Transcribed Spacer (ITS) sequencing. Pectinase activity was screened, and metabolic dynamics of sugars and organic acids were analyzed using high-performance liquid chromatography.

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Metformin is the first-line pharmacotherapy for type 2 diabetes mellitus; however, many patients respond poorly to this drug in clinical practice. The potential involvement of microbiota-mediated intestinal immunity and related signals in metformin responsiveness has not been previously investigated. In this study, we successfully constructed a humanized mouse model by fecal transplantation of the gut microbiota from clinical metformin-treated - responders and non-responders, and reproduced the difference in clinical phenotypes of responsiveness to metformin.

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The advancement of small ruminant farming in Benin has encountered challenges associated with health issues and agricultural practices. This study aimed to provide the initial documentation of the prevalence of enzootic ovine abortion and evaluate the health status of animals concerning various recurring diseases on traditional small ruminant farms in Benin. In 2023, a semi-structured survey of 450 farms was carried out in two agricultural development centers in Benin.

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We investigated whether antibody concentrations measured in plasma using the Roche Elecsys® Anti-SARS-CoV-2 S assay (targeting the receptor binding domain, RBD) could estimate levels of Wuhan-Hu-1 and Omicron XBB.1.5 spike-directed antibodies with neutralizing ability (NtAb) or those mediating NK-cell activity.

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Plasma Proteomic Signature as a Predictor of Age Advancement in People Living With HIV.

Aging Cell

January 2025

Department of Internal Medicine and Radboud Center of Infectious Diseases, Radboudumc, Radboud University, Nijmegen, The Netherlands.

Due to the increased burden of non-AIDS-related comorbidities in people living with HIV (PLHIV), identifying biomarkers and mechanisms underlying premature aging and the risk of developing age-related comorbidities is a priority. Evidence suggests that the plasma proteome is an accurate source for measuring biological age and predicting age-related clinical outcomes. To investigate whether PLHIV on antiretroviral therapy (ART) exhibit a premature aging phenotype, we profiled the plasma proteome of two independent cohorts of virally suppressed PLHIV (200HIV and 2000HIV) and one cohort of people without HIV (200FG) using O-link technology.

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Introduction-Aim: Spontaneous bacterial peritonitis (SBP) is a common complication in cirrhotic patients and is associated with a high mortality rate. The aim of this study is to determine the epidemiological and bacteriological profile of spontaneous bacterial peritonitis, as well as antibiotic resistance among hospitalized patients at CHU Mohammed VI, in order to guide empirical antibiotic choices for better management. Methods: This is a prospective study conducted over a period of 12 months, from January to December 2023, focusing on all requests for bacteriological examination of ascitic fluid samples.

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Prevalence of pathogenic variants of inborn errors of immunity in critically ill children admitted to the pediatric intensive care unit for sepsis: A Moroccan cohort study.

Tunis Med

January 2025

University Hassan II of Casablanca, Faculty of medicine and pharmacy of Casablanca, Abderrahim HAROUCHI Mother-child hospital, Pediatric Anesthesiology and Intensive Care Unit, Laboratory of clinical immunology, inflammation and allergy (LICIA), Casablanca, Morocco.

Introduction: Pediatric sepsis remains a leading cause of morbidity and mortality in Africa. Nearly half of pediatric sepsis deaths occur in previously healthy children. The role of inborn errors of immunity (IEI) in susceptibility to sepsis is yet to be identified and their prevalence amongst previously healthy children admitted to the pediatric intensive care unit (PICU) is unclear.

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Global insights and advances in edible coatings or films toward quality maintenance and reduced postharvest losses of fruit and vegetables: An updated review.

Compr Rev Food Sci Food Saf

January 2025

Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Key Laboratory of Postharvest Preservation and Processing of Vegetables (Co-Construction by Ministry and Province), Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.

Transitioning to safe, nonthermal, and edible strategies for maintaining fruit and vegetable (F&V) quality, reducing postharvest losses (up to 55% annually), and ensuring food security requires extensive research and innovation in postharvest technologies. This review aims to provide an updated understanding of edible coatings or films (ECF), focusing on their role in reducing F&V postharvest losses, based on data from the last 40 years retrieved from the Web of Science database. The global ECF research network is represented by publication trends, majorly researched F&V, key research areas, influential and emerging authors, and global research ranking.

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