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https://www.readbyqxmd.com/read/29352461/clinical-and-microbiological-evaluation-of-the-effect-of-lactobacillus-reuteri-in-the-treatment-of-mucositis-and-peri-implantitis-a-triple-blind-randomized-clinical-trial
#1
M Galofré, D Palao, M Vicario, J Nart, D Violant
BACKGROUND AND OBJECTIVE: Oral probiotics appear to improve the treatment of periodontal diseases but there is limited evidence on their efficacy in the treatment of peri-implant diseases. The objective of the present study was to evaluate, clinically and microbiologically, the effect of the oral probiotic, Lactobacillus reuteri Prodentis, as adjuvant to non-surgical mechanical therapy in implants with mucositis or peri-implantitis, placed in patients with a history of periodontal disease...
January 19, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29352087/subtype-specific-selection-for-resistance-to-fluoroquinolones-but-not-to-tetracyclines-occurs-in-campylobacter-jejuni-from-beef-cattle-in-confined-feeding-operations-in-southern-alberta-canada
#2
Andrew L Webb, L Brent Selinger, Eduardo N Taboada, G Douglas Inglis
Campylobacter jejuni was longitudinally isolated from beef cattle housed in four confined feeding operations (CFOs) in southern Alberta over 18 months. All of the cattle were administered a variety of antimicrobial agents (AMAs) non-therapeutically and metaphylactically during their time in the CFOs. In total, 7966 C. jejuni isolates were recovered from cattle. More animals were colonized by the bacterium after >60 days in the CFO (i.e. interim) compared to individuals upon entry at the CFO (i.e. arrival)...
January 19, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29351583/travelers-diarrhea-in-thailand-a-quantitative-analysis-using-taqman%C3%A2-array-card
#3
Paphavee Lertsethtakarn-Ketwalha, Sasikorn Silapong, Pimmada Sakpaisal, Oralak Serichantalergs, Nattaya Ruamsap, Woradee Lurchachaiwong, Sinn Anuras, James A Platts-Mills, Jie Liu, Eric R Houpt, Ladaporn Bodhidatta, Brett E Swierczewski, Carl J Mason
Background: Travelers' diarrhea (TD) is a common illness experienced by travelers from developed countries visiting developing countries. Recent questionnaire-based surveillance studies reported that approximately 6-16% of travelers experienced TD while visiting Thailand; however, a majority of TD information was limited mainly to US military populations. Methods: A TD surveillance study was conducted at Bumrungrad International Hospital in 2012-2014 in Bangkok, Thailand...
January 17, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29349705/stool-cultures-at-the-icu-get-rid-of-it
#4
Carolin F Manthey, Darja Dranova, Martin Christner, Laura Berneking, Stefan Kluge, Ansgar W Lohse, Valentin Fuhrmann
BACKGROUND: Stool cultures for Campylobacter, Salmonella and Shigella and/or Yersinia spp. are frequently ordered in critically ill patients with diarrhea. The aim of this study is to analyze the diagnostic yield in a large cohort of critically ill patients. Therefore, we performed a cohort study at the Department of Intensive Care Medicine of a University Hospital (11 ICUs). RESULTS: From all patients who were admitted to the ICU between 2010 and 2015, stool cultures were taken from 2...
January 18, 2018: Annals of Intensive Care
https://www.readbyqxmd.com/read/29341956/microbiome-associated-with-denture-malodour
#5
S Yitzhaki, L Reshef, U Gophna, M Rosenberg, N Sterer
In the past, our inability to cultivate most of the oral microorganisms has limited our view of this complex ecosystem. In the present study, we utilized next generation deep sequencing techniques to revisit the microbiome associated with denture malodour, a growing field with the rise in life expectancy. The study population comprised 26 full dentures patients (mean age 71 ± 6.4, 10 males, 16 females) who visited the Tel Aviv University dental geriatric clinic. Denture malodour was rated organoleptically by a single odour judge, and dentures scoring 2 and above were considered malodour positive...
January 17, 2018: Journal of Breath Research
https://www.readbyqxmd.com/read/29340583/functional-analysis-of-the-helicobacter-pullorum-n-linked-protein-glycosylation-system
#6
Adrian J Jervis, Alison G Wood, Joel A Cain, Jonathan A Butler, Helen Frost, Elizabeth Lord, Rebecca Langdon, Stuart J Cordwell, Brendan W Wren, Dennis Linton
N-linked protein glycosylation systems operate in species from all three domains of life. The model bacterial N-linked glycosylation system from Campylobacter jejuni is encoded by pgl genes present at a single chromosomal locus. This gene cluster includes the pglB oligosaccharyltransferase responsible for transfer of glycan from lipid carrier to protein. Although all genomes from species of the Campylobacter genus contain a pgl locus, among the related Helicobacter genus only three evolutionarily related species (H...
January 11, 2018: Glycobiology
https://www.readbyqxmd.com/read/29340343/what-is-the-impact-of-epstein-barr-virus-in-peri-implant-infection
#7
Luigi Canullo, Paolo Pesce, Daniele Botticelli, Ugo Covani, Sasha Jankovic, Tanja Jovanovic, Mia Rakic
PURPOSE: To compare the qualitative and quantitative profile of Epstein-Barr virus (EBV) at external and internal implant surfaces between participants with peri-implantitis and healthy peri-implant tissues and to quantitatively assess the relation between EBV and periopathogens inside the microbiologic profile associated with peri-implantitis. MATERIALS AND METHODS: Microbiologic specimens were retrieved from 84 patients wearing 190 implants to estimate the levels of EBV and 10 periopathogens in the peri-implant pocket and internal-implant connection using quantitative polymerase chain reaction...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29339429/the-biochemistry-of-sensing-enteric-pathogens-regulate-type-iii-secretion-in-response-to-environmental-and-host-cues
#8
REVIEW
Nicole J De Nisco, Giomar Rivera-Cancel, Kim Orth
Enteric pathogens employ sophisticated strategies to colonize and infect mammalian hosts. Gram-negative bacteria, such as Escherichia coli, Salmonella, and Campylobacter jejuni, are among the leading causes of gastrointestinal tract infections worldwide. The virulence strategies of many of these Gram-negative pathogens rely on type III secretion systems (T3SSs), which are macromolecular syringes that translocate bacterial effector proteins directly into the host cytosol. However, synthesis of T3SS proteins comes at a cost to the bacterium in terms of growth rate and fitness, both in the environment and within the host...
January 16, 2018: MBio
https://www.readbyqxmd.com/read/29339148/biochemical-characterization-of-campylobacter-jejuni-pnpase-an-exoribonuclease-important-for-bacterial-pathogenicity
#9
Jorge Casinhas, Rute G Matos, Nabila Haddad, Cecília M Arraiano
Bacteria need to promptly respond to environmental changes. Ribonucleases (RNases) are key factors in the adaptation to new environments by enabling a rapid adjustment in RNA levels. The exoribonuclease polynucleotide phosphorylase (PNPase) is essential for low-temperature cell survival, affects the synthesis of proteins involved in virulence and has an important role in swimming, cell adhesion/invasion ability, and chick colonization in C. jejuni. However, the mechanism of action of this ribonuclease is not yet known...
January 12, 2018: Biochimie
https://www.readbyqxmd.com/read/29338928/immunoproteomic-identification-of-antigenic-candidate-campylobacter-jejuni-and-human-peripheral-nerve-proteins-involved-in-guillain-barr%C3%A3-syndrome
#10
Aida Loshaj-Shala, Mara Colzani, Katerina Brezovska, Ana Poceva Panovska, Ljubica Suturkova, Giangiacomo Beretta
Immunoproteomics is become a potent methodology used for identifying immunoreactive proteins. In this study, an immunoproteomic approach based on 2-dimensional gel electrophoresis (2D-PAGE) and immunoblotting combined with high resolution mass spectrometry (MS) was used to identify immunoreactive proteins that might be involved in mechanisms of Guillain-Barré syndrome (GBS) development, regardless of their potential reciprocal molecular mimicry. Proteins isolated from C. jejuni and human peripheral nerve tissue (HPN) were separated with 2D SDS-PAGE and subjected to western blotting using serum samples from GBS patients...
January 9, 2018: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29335801/igm-augments-complement-bactericidal-activity-with-serum-from-a-patient-with-a-novel-cd79a-mutation
#11
Jeroen D Langereis, Stefanie S Henriet, Saskia Kuipers, Corry M R Weemaes, Mirjam van der Burg, Marien I de Jonge, Michiel van der Flier
Antibody replacement therapy for patients with antibody deficiencies contains only IgG. As a result, concurrent IgM and IgA deficiency present in a large proportion of antibody deficient patients persists. Especially patients with IgM deficiency remain at risk for recurrent infections of the gastrointestinal and respiratory tract. The lack of IgM in the current IgG replacement therapy is likely to contribute to the persistence of these mucosal infections because this antibody class is especially important for complement activation on the mucosal surface...
January 15, 2018: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/29330183/campylobacter-jejuni-colonization-in-the-crow-gut-involves-high-deletion-within-the-cytolethal-distending-toxin-gene-cluster
#12
Keya Sen, Jingrang Lu, Piyali Mukherjee, Tanner Berglund, Eunice Varughese, Asish K Mukhopadhyay
Campylobacter spp. are major causes of gastroenteritis worldwide. The virulence potential of Campylobacter shed in crow feces obtained from a roost area in Bothell, Washington, was studied and compared with isolates from other parts of Washington, and from a different crow spp., 7000 miles away, in Kolkata, India. Campylobacter was isolated from 61% and 69 % of the fecal samples obtained from Washington and Kolkata, respectively and were confirmed to be C. jejuni The cytolethal distending toxin (CDT) gene cluster from these isolates revealed a truncated sequence of about 1400 bp...
January 12, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29325875/fatal-thoracic-empyema-involving-campylobacter-rectus-a-case-report
#13
A Noël, A Verroken, L Belkhir, H Rodriguez-Villalobos
We report the case of a 69-year-old man admitted for septic shock secondary to necrotic pneumoniae complicated by thoracic empyema of fatal issue. Microbiological examination of pleural liquid revealed a mixed anaerobic flora involving Campylobacter rectus and Actinomyces meyeri. Campylobacter rectus is an infrequent anaerobic pathogen of oral origin To our knowledge, this is the first case report of fatal C. rectus - associated thoracic empyema, and only the second reported case in which identification was successfully performed by MALDI-TOF MS...
January 8, 2018: Anaerobe
https://www.readbyqxmd.com/read/29324839/wild-insectivorous-bats-might-be-carriers-of-campylobacter-spp
#14
Wilma C Hazeleger, Wilma F Jacobs-Reitsma, Peter H C Lina, Albert G de Boer, Thijs Bosch, Angela H A M van Hoek, Rijkelt R Beumer
BACKGROUND: The transmission cycles of the foodborne pathogens Campylobacter and Salmonella are not fully elucidated. Knowledge of these cycles may help reduce the transmission of these pathogens to humans. METHODOLOGY/PRINCIPAL FINDINGS: The presence of campylobacters and salmonellas was examined in 631 fresh fecal samples of wild insectivorous bats using a specially developed method for the simultaneous isolation of low numbers of these pathogens in small-sized fecal samples (≤ 0...
2018: PloS One
https://www.readbyqxmd.com/read/29318796/recurrent-guillain-barr%C3%A3-syndrome-following-urinary-tract-infection-by-escherichia-coli
#15
Yoon Sik Jo, Jin Yong Choi, Hong Chung, Yuseok Kim, Sang Jun Na
Recurrent Guillain-Barré syndrome (GBS) is a rare, immune-mediated disease of the peripheral nervous system. It has been reported to occur at intervals ranging from four months to 10 years; published case studies suggest that 1%-6% of patients who have had GBS will experience recurrent attacks. The most commonly identified infections coinciding with GBS are Campylobacter jejuni, Haemophilus influenzae, Mycoplasma pneumonia, and cytomegalovirus, while an antecedent infection with Escherichia coli is very uncommon...
January 22, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29318721/catabolite-repression-in-campylobacter-jejuni-correlates-with-intracellular-succinate-levels
#16
Anne-Xander van der Stel, Chris H A van de Lest, Steven Huynh, Craig T Parker, Jos P van Putten, Marc M S M Wösten
Bacteria have evolved different mechanisms to catabolize carbon sources from nutrient mixtures. They first consume their preferred carbon source, before others are used. Regulatory mechanisms adapt the metabolism accordingly to maximize growth and to outcompete other organisms. The human pathogen Campylobacter jejuni is an asaccharolytic Gram-negative bacterium that catabolizes amino acids and organic acids for growth. It prefers serine and aspartate as carbon sources, however it lacks all regulators known to be involved in regulating carbon source utilization in other organisms...
January 10, 2018: Environmental Microbiology
https://www.readbyqxmd.com/read/29316981/host-specific-differences-in-the-response-of-cultured-macrophages-to-campylobacter-jejuni-capsule-and-o-methyl-phosphoramidate-mutants
#17
Sungwon Kim, Andrea Vela, Sara M Clohisey, Spiridoula Athanasiadou, Pete Kaiser, Mark P Stevens, Lonneke Vervelde
Campylobacter jejuni is the leading cause of bacterial food-borne gastroenteritis worldwide and human infections are frequently associated with handling and consumption of contaminated poultry. The polysaccharide capsule of C. jejuni plays important roles in colonisation of the chicken gut, invasion of epithelial cells and serum resistance and is subject to modification with O-methyl phosphoramidate (MeOPN) in most strains. In this study, the cytokine responses of mouse bone marrow-derived macrophages (mBMMs), chicken bone marrow-derived macrophages (chBMMs) and human monocyte-derived macrophages (hMDMs) were measured following infection with C...
January 9, 2018: Veterinary Research
https://www.readbyqxmd.com/read/29315030/antimicrobial-activity-of-n-halamine-coated-materials-in-broiler-chicken-houses
#18
Tian Ren, Mingyu Qiao, Lei Zhang, Jean Weese, Tung-Shi Huang, Xuehong Ren
The antimicrobial activity of 1-chloro-2,2,5,5-tetramethyl-4-imidazoidinone (MC), a nonbleaching N-halamine compound, was investigated on materials commonly used in broiler production, including stainless steel, galvanized metal, aluminum, plastic, and pressure-treated wood. MC aqueous solutions at 0.02, 0.04, and 0.06% were challenged with Salmonella Typhimurium and Campylobacter jejuni at 6 log CFU/mL, resulting in complete inactivation of both bacteria in 30 min with 0.06% MC. Follow-up experiments were performed using test materials treated with 0...
February 2018: Journal of Food Protection
https://www.readbyqxmd.com/read/29313493/cholera-in-brest-france
#19
Laurence Pougnet, Richard Pougnet, Audrey Voarino, Jeanne Sapin, Isabelle Drouillard, Marie Laure Quilici, Catherine Désidéri-Vaillant
This is a case report about a 54-year-old man with hypovolemic shock, due to diarrhea and major vomiting after his return from India. The isolation of Vibrio cholerae serogroup O1 (Ogawa serotype) explains this typical clinical presentation of cholera, seen in 10% of cholera cases only. The patient had co-infection with Vibrio cholerae and Campylobacter coli. Co-infections appear to be frequent in endemic areas. The purpose of this case report is to recall the relevance of Vibrio isolation when the clinical context is evocative (diarrhea on travel return, raw sea food consumption)...
January 9, 2018: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/29313470/serological-markers-of-recent-campylobacter-jejuni-infection-in-patients-with-guillain-barr%C3%A3-syndrome-in-the-state-of-piau%C3%A3-brazil-2014-2016
#20
Cyntia O Souza, Marcelo A C S Vieira, Francisca M A Batista, Kelsen D Eulálio, Jéssica M M Neves, Laís C Sá, Leni C R Monteiro, Walfrido S Almeida-Neto, Raimunda S S Azevedo, Dorcas L Costa, Ana C R Cruz
In countries where poliomyelitis has been eradicated, Guillain-Barré syndrome (GBS) is the leading cause of acute flaccid paralysis. The range of infections that precede GBS in Brazil is unknown. Campylobacter jejuni infection is the most frequent trigger of GBS worldwide. Given the lack of systematic surveillance of diarrheal diseases, particularly in adults, the incidence of enteritis caused by C. jejuni in developing countries is unknown. From 2014 to 2016, pretreatment serum samples from 63 GBS patients were tested by immunoglobulin M (IgM) enzyme-linked immunosorbent assay for C...
January 8, 2018: American Journal of Tropical Medicine and Hygiene
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