Publications by authors named "Allard M"

Nontyphoidal Salmonella (NTS) is a common pathogen in food-producing animals and a public health concern worldwide. Various NTS serovars may be present in apparently healthy animals. This could result in carcass contamination during the slaughter process leading to human exposure.

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is a strictly anaerobic, Gram-positive, spore-forming bacterium that produces botulinum neurotoxin, a potent and deadly proteinaceous exotoxin. strain CFSAN064329 (62A) produces an A1 serotype/subtype botulinum neurotoxin and is frequently utilized in food challenge and detection studies. We report here the closed genome sequence of strain CFSAN064329 (62A).

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Group B Streptococcus (GBS) is one the most common bacterium responsible of maternal infections during pregnancy. Offspring in utero-exposed to GBS-induced placental inflammation displayed sex-specific forebrain injuries. Sex differences have been reported in several neuropsychiatric disorders.

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Pathogen monitoring is becoming more precise as sequencing technologies become more affordable and accessible worldwide. This transition is especially apparent in the field of food safety, which has demonstrated how whole-genome sequencing (WGS) can be used on a global scale to protect public health. GenomeTrakr coordinates the WGS performed by public-health agencies and other partners by providing a public database with real-time cluster analysis for foodborne pathogen surveillance.

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serovar Dublin is a strongly adapted serovar that causes enteritis and/or systemic disease in cattle and results in high rates of mortality. Here, we report the draft genome sequences of 112 Dublin strains isolated from humans and animals in Brazil. These draft genome sequences will help enhance our understanding of this serovar in Brazil.

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A new method for the quantitative analysis by liquid chromatography-tandem mass spectrometry (LC-MS/MS) of five tyrosine kinase inhibitors (afatinib, crizotinib, osimertinib, erlotinib and nintedanib) used in the treatment of non-small cell lung cancer (NSCLC) was developed and validated in human plasma. Separation was performed on an Accucore C18 (2.1 × 50 mm; 2.

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The emergence and dissemination of carbapenemases, bacterial enzymes able to inactivate most β-lactam antibiotics, in Enterobacteriaceae is of increasing concern. The concurrent spread of resistance against colistin, an antibiotic of last resort, further compounds this challenge further. Whole-genome sequencing (WGS) can play a significant role in the rapid and accurate detection/characterization of existing and emergent resistance determinants, an essential aspect of public health surveillance and response activities to combat the spread of antimicrobial resistant bacteria.

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Effective individualized treatment of patients with colorectal liver metastases (CLM) requires tumor genotyping, usually based on the analysis of one single sample per patient. Therapy failure may partially be explained by sampling errors and/or intratumoral genetic heterogeneity. We aimed to demonstrate intratumoral genetic heterogeneity in CLM and enable pathologists to select tumor tissue for genotyping.

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Immune response against human cytomegalovirus (HCMV) includes a set of persistent cytotoxic NK and CD8 T cells devoted to eliminate infected cells and to prevent reactivation. CD8 T cells against HCMV antigens (pp65, IE1) presented by HLA class-I molecules are well characterized and they associate with efficient virus control. HLA-E-restricted CD8 T cells targeting HCMV UL40 signal peptides (HLA-EUL40) have recently emerged as a non-conventional T-cell response also observed in some hosts.

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is a major zoonotic pathogen that causes foodborne gastroenteritis worldwide. However, clinical cases of campylobacteriosis have been underreported and underdiagnosed in Brazil. Herein, we describe the draft genome sequences of 116 strains isolated from diverse sources in Brazil.

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Article Synopsis
  • Salmonellosis is a common disease globally, with the serovar Typhimurium being particularly significant in clinical cases.
  • Researchers have sequenced the draft genomes of 20 Typhimurium strains collected from swine in Santa Catarina, Brazil.
  • These genome sequences will enhance our knowledge of how Typhimurium affects swine and potentially humans in Brazil.
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With the growing popularity of integrative medicine, essential oils have found their way back into healthcare. Essential oils provide a simple way to alleviate certain physical symptoms, promote emotional well-being, and provide comfort. This article discusses the administration and common uses of essential oils; their reported benefits, potential risks, and contraindications; and the current state of associated research.

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The yeast was reported as an efficient biological control agent of postharvest diseases of fruits and vegetables, and it is the bases of the commercial formulated product "Shemer." Several mechanisms of action by which inhibits postharvest pathogens were suggested including iron-binding compounds, induction of defense signaling genes, production of fungal cell wall degrading enzymes and relatively high amounts of superoxide anions. We assembled the whole genome sequence of two strains of using PacBio and Illumina shotgun sequencing technologies.

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Background: Many factors may compromise the functional recovery of a harvested potential liver for engraftment. Normothermic machine perfusion (NMP) can revive hepatic metabolism ex vivo enabling subsequent transplantation. In this study, we evaluated the recovery of 11 discarded livers' function utilizing NMP.

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Multidrug-resistant (MDR) plasmids play an important role in disseminating antimicrobial resistance genes. To elucidate the antimicrobial resistance gene compositions in A/C incompatibility complex (IncA/C) plasmids carried by animal-derived MDR Salmonella Newport, and to investigate the spread mechanism of IncA/C plasmids, this study characterizes the complete nucleotide sequences of IncA/C plasmids by comparative analysis. Complete nucleotide sequencing of plasmids and chromosomes of six MDR Salmonella Newport strains was performed using PacBio RSII.

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In this study, a collection of subspecies obtained from live mice caught on 32 poultry farms in the Northeast US between 1995 to 1998 was evaluated to provide a historical reference for serotype distribution during a time when egg contamination by serotype Enteritidis was at its peak. Of 821 mice cultured, 157 were positive (19.1%).

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Background: Although many prognostic factors of primary graft dysfunction after liver transplantation (LT) are available, it remains difficult to predict failure in a given recipient.

Objective: We aimed to determine whether the intraoperative assay of arterial lactate concentration at the end of LT (LCEOT) might constitute a reliable biological test to predict early outcomes [primary nonfunction (PNF), early graft dysfunction (EAD)].

Methods: We reviewed data from a prospective database in a single center concerning patients transplanted between January 2015 and December 2016 (n = 296).

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Background: Portal vein embolization (PVE) use is nowadays debated due to the risk of technical or biological unresectability after the period of time needed to achieve future liver remnant (FLR) hypertrophy. We evaluated the safety and efficacy of PVE in a single high-volume hepatobiliary center, with emphasis in the feasibility to achieve tumor resection.

Methods: Patients undergoing PVE before major hepatectomy at our institution between 1993 and 2015 were retrospectively analyzed.

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Hysterectomies (i.e., surgical removal of the uterus) are the prevailing solution to treat medical conditions such as uterine cancer, endometriosis, and uterine prolapse.

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Article Synopsis
  • The research analyzed over 20,000 samples of leafy greens, sprouts, and melons from U.S. markets between 2009 and 2014 for harmful bacteria like Salmonella and E. coli.
  • Among leafy greens, sprouts, and melons tested, foodborne pathogens like E. coli and Salmonella were found in very low prevalence, indicating that these types of produce generally have low contamination levels.
  • Despite the low levels of pathogens in these foods, the study emphasizes the importance of food safety practices since these items are often eaten raw.
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Background: The operative risk of hepatectomy under antiplatelet therapy is unknown. This study sought to assess the outcomes of elective hepatectomy performed with or without aspirin continuation in a well balanced matched cohort.

Methods: Data were retrieved from a multicentre prospective observational study.

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Listeriosis outbreaks are frequently multistate/multicountry outbreaks, underlining the importance of molecular typing data for several diverse and well-characterized isolates. Large-scale whole-genome sequencing studies on isolates from non-U.S.

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Objectives: Corynebacterium striatum is an emerging multidrug-resistant (MDR) pathogen of immunocompromised and chronically ill patients. The objective of these studies was to provide a detailed genomic analysis of disease-causing C. striatum and determine the genomic drivers of resistance and resistance-gene transmission.

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serovar Enteritidis is one of the most commonly isolated foodborne pathogens and is transmitted primarily to humans through consumption of contaminated poultry and poultry products. We are reporting completely closed genome and plasmid sequences of historical  Enteritidis isolates recovered from humans between 1949 and 1995 in the United States.

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Clostridial neurotoxins, including botulinum and tetanus neurotoxins, are among the deadliest known bacterial toxins. Until recently, the horizontal mobility of this toxin gene family appeared to be limited to the genus We report here the closed genome sequence of , a Gram-negative bacterium containing coding sequences with homology to clostridial neurotoxin family proteins.

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