Searched for: subject%3A%22Streptococcus%22
(1 - 18 of 18)
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Kolkman, D.G.E. (author), Rijnders, M.E.B. (author), Wouters, M.G.A.J. (author), Dommelen, P.V. (author), de Groot, C.J.M. (author), Fleuren, M.A.H. (author)
Problem: Despite the introduction of preventive guidelines, no decrease in the incidence of early onset infection was observed. Background: Early onset group B streptococcal (EOGBS) infection is an important cause of neonatal morbidity and mortality. Aim: Our study was conducted to determine adherence to three guideline-based group B...
article 2020
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Kolkman, D.G.E. (author), Fleuren, M.A.H. (author), Wouters, M.G.A.J. (author), de Groot, C.J.M. (author), Rijnders, M.E.B. (author)
Background. Actions to prevent early onset disease in neonates are based on different strategies including administering antibiotic prophylaxis during labour in case of 1) maternal GBS colonisation (screening strategy), 2) identified risk factors (risk-based strategy) or 3) a combination of these two conditions (maternal GBS colonisation and...
article 2017
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Kort, R. (author), Westerik, N. (author), Mariela Serrano, L. (author), Douillard, F.P. (author), Gottstein, W. (author), Mukisa, I.M. (author), Tuijn, C.J. (author), Basten, L. (author), Hafkamp, B. (author), Meijer, W.C. (author), Teusink, B. (author), Vos, W.M. (author), Reid, G. (author), Sybesma, W. (author)
Background: The lactic acid bacterium Lactobacillus rhamnosus GG is the most studied probiotic bacterium with proven health benefits upon oral intake, including the alleviation of diarrhea. The mission of the Yoba for Life foundation is to provide impoverished communities in Africa increased access to Lactobacillus rhamnosus GG under the name...
article 2015
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Biesbroek, G. (author), Sanders, E.A.M. (author), Roeselers, G. (author), Wang, X. (author), Caspers, M.P.M. (author), Trzciński, K. (author), Bogaert, D. (author), Keijser, B.J.F. (author)
Introduction: Accurate analyses of microbiota composition of low-density communities (103-104 bacteria/sample) can be challenging. Background DNA from chemicals and consumables, extraction biases as well as differences in PCR efficiency can significantly interfere with microbiota assessment. This study was aiming to establish protocols for...
article 2012
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End, C. (author), Bikker, F.J. (author), Renner, M. (author), Bergmann, G. (author), Lyer, S. (author), Blaich, S. (author), Hudler, M. (author), Helmke, B. (author), Gassler, N. (author), Autschbach, F. (author), Ligtenberg, A.J.M. (author), Benner, A. (author), Holmskov, U. (author), Schirmacher, P. (author), Nieuw Amerongen, A.V. (author), Rosenstiel, P. (author), Sina, C. (author), Franke, A. (author), Hafner, M. (author), Kioschis, P. (author), Schreiber, S. (author), Poustka, A. (author), Mollenhauer, J. (author)
Deleted in malignant brain tumors 1 (DMBT1) is a secreted glycoprotein displaying a broad bacterial-binding spectrum. Recent functional and genetic studies linked DMBT1 to the suppression of LPS-induced TLR4-mediated NF-kappaB activation and to the pathogenesis of Crohn's disease. Here, we aimed at unraveling the molecular basis of its function...
article 2009
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Rijnders, M.E.B. (author), van den Akker-van Marle, M.E. (author), van Dommelen, P. (author), Amelink-Verburg, M.P. (author), van Wouwe, J.P. (author), Verkerk, P.H. (author), TNO Kwaliteit van Leven (author)
Objective. To assess the cost effectiveness of four strategies in the prevention of neonatal infection with group-B streptococci (GBS). Design. Cost-effectiveness analysis. Method. A modelling study was carried out in which the effects and the fondercosts of intrapartum antibiotic prophylaxis (IAP) in accordance with the guideline from the Dutch...
article 2007
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Vlaminckx, B.J.M. (author), Schuren, F.H.J. (author), Montijn, R.C. (author), Caspers, M.P.M. (author), Beitsma, M.M. (author), Wannet, W.J.B. (author), Schouls, L.M. (author), Verhoef, J. (author), Jansen, W.T.M. (author), TNO Kwaliteit van Leven (author)
Invasive group A streptococcal (GAS) disease reemerged in The Netherlands in the late 1980s. To seek an explanation for this resurgence, the genetic compositions of 22 M1 and 19 M28 GAS strains isolated in The Netherlands between 1960s and the mid-1990s were analyzed by using a mixed-genome DNA microarray. During this four-decade period, M1 and...
article 2007
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Vlaminckx, B.J.M. (author), Schuren, F.H.J. (author), Montijn, R.C. (author), Caspers, M.P.M. (author), Fluit, A.C. (author), Wannet, W.J.B. (author), Schouls, L.M. (author), Verhoef, J. (author), Jansen, W.T.M. (author), TNO Kwaliteit van Leven (author)
Group A streptococci (GAS), or Streptococcus pyogenes, are associated with a remarkable variety of diseases, ranging from superficial infections to life-threatening diseases such as toxic-shock-like syndrome (TSS). GAS strains belonging to M types M1 and M3 are associated with TSS. This study aims to obtain insight into the gene profiles...
article 2007
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Egert, M. (author), de Graaf, A.A. (author), Maathuis, A. (author), de Waard, P. (author), Plugge, C.M. (author), Smidt, H. (author), Deutz, N.E.P. (author), Dijkema, C. (author), de Vos, W.M. (author), Venema, K. (author), TNO Kwaliteit van Leven (author)
16S rRNA-based stable isotope probing (SIP) and nuclear magnetic resonance (NMR) spectroscopy-based metabolic profiling were used to identify bacteria fermenting glucose under conditions simulating the human intestine. The TIM-2 in vitro model of the human intestine was inoculated with a GI tract microbiota resembling that of the small intestine...
article 2007
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van den Akker-van Marle, M.E. (author), Rijnders, M.E.B. (author), Amelink-Verburg, M.P. (author), Verkerk, P.H. (author), TNO Kwaliteit van Leven (author)
COBJECTIVE: To estimate the costs and effects of different treatment strategies with intrapartum antibiotic prophylaxis to prevent early-onset group B streptococcal (GBS) disease in the Netherlands. The treatment strategies include a risk-based strategy, a screening-based strategy, a combined screening/risk-based strategy and the current Dutch...
article 2006
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van den Akker-van Marle, M.E. (author), Rijnders, M.E.B. (author), van Dommelen, P. (author), Fekkes, M. (author), van Wouwe, J.P. (author), Amelink-Verburg, M.P. (author), Verkerk, P.H. (author)
Objective: To estimate the costs and effects of different treatment strategies with intrapartum antibiotic prophylaxis to prevent early-onset group B streptococcal (GBS) disease in the Netherlands. The treatment strategies include a risk-based strategy, a screening-based strategy, a combined screening/risk-based strategy and the current Dutch...
article 2005
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Kralj, S. (author), van Geel-Schutten, G.H. (author), van der Maarel, M.J.E.C. (author), Dijkhuizen, L. (author), TNO Voeding Centraal Instituut voor Voedingsonderzoek TNO (author)
Lactobacillus reuteri strain 121 uses sucrose for synthesis of a unique, soluble glucan ('reuteran') with mainly α-(1→4) glucosidic linkages. The gene (gtfA) encoding this glucansucrase enzyme had previously been characterized. Here, a detailed biochemical and molecular analysis of the GTFA enzyme is presented. This is believed to be the first...
article 2004
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Kralj, S. (author), van Geel-Schutten, G.H. (author), Dondorff, M.M.G. (author), Kirsanovs, S. (author), van der Maarel, M.J.E.C. (author), Dijkhuizen, L. (author), TNO Voeding Centraal Instituut voor Voedingsonderzoek TNO (author)
Members of the genera Streptococcus and Leuconostoc synthesize various α-glucans (dextran, alternan and mutan). In Lactobacillus, until now, the only glucosyltransferase (GTF) enzyme that has been characterized is gtfA of Lactobacillus reuteri 121, the first GTF enzyme synthesizing a glucan (reuteran) that contains mainly α-(1 → 4) linkages...
article 2004
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van Hijum, S.A.F.T. (author), Szalowska, E. (author), van der Maarel, M.J.E.C. (author), Dijkhuizen, L. (author), TNO Voeding Centraal Instituut voor Voedingsonderzoek TNO (author)
Lactobacillus reuteri strain 121 employs a fructosyltransferase (FTF) to synthesize a fructose polymer [a fructan of the levan type, with β(2→6) linkages] from sucrose or raffinose. Purification of this FTF (a levansucrase), and identification of peptide amino acid sequences, allowed isolation of the first Lactobacillus levansucrase gene (lev),...
article 2004
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Kralj, S. (author), Geel van - Schutten, G.H. (author), van der Maarel, M.J.E.C. (author), Dijkhuizen, L. (author)
Limited information is available about homopolysaccharide synthesis in the genus Lactobacillus. Using efficient screening techniques, extracellular glucosyltransferase (GTF) enzyme activity, resulting in α-glucan synthesis from sucrose, was detected in various lactobacilli. PCR with degenerate primers based on homologous boxes of known...
article 2003
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Thole, J.E.R. (author), van Dalen, P.J. (author), Havenith, C.E.G. (author), Pouwels, P.H. (author), Seegers, J.F.M.L. (author), Tielen, F.D. (author), van der Zee, M.D. (author), Zegers, N.D. (author), Shaw, M. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
By expression of foreign antigens in attenuated strains derived from bacterial pathogens and in non-pathogenic commensal bacteria, recombinant vaccines are being developed that aim to stimulate mucosal immunity. Recent advances in the pathogenesis and molecular biology of these bacteria have allowed rational development of new and improved...
article 2000
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Vriesema, A.J.M. (author), Dankert, J. (author), Zaat, S.A.J. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
We aimed to identify transcription signal sequences from Streptococcus gordonii strain CH1 by random chromosomal cloning. Five genomic fragments from a Sau3A digest, which constitutively activated transcription of a promoterless spectinomycin resistance gene in this strain, were isolated and characterized. Additionally, one promoter fragment was...
article 1999
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Aktypis, A. (author), Kalantzopoulos, G. (author), Huis in't Veld, J.H.J. (author), ten Brink, B. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
ACA-DC 0040 produced an antimicrobial agent, which was named thermophilin T, active against several lactic acid bacteria strains of different species and food spoilage bacteria, such as Clostridium sporogenes C22/10 and Cl. tyrobutyricum NCDO-1754. The crude antimicrobial compound is sensitive to proteolytic enzymes and α-amylase, heat-stable ...
article 1998
Searched for: subject%3A%22Streptococcus%22
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