Nuno F Azevedo

Summary

Affiliation: University of Minho
Country: Portugal

Publications

  1. pmc Nutrient shock and incubation atmosphere influence recovery of culturable Helicobacter pylori from water
    N F Azevedo
    Centro de Engenharia Biólogica, Universidade do Minho, 4700 057 Braga, Portugal
    Appl Environ Microbiol 70:490-3. 2004
  2. pmc Fluorescence in situ hybridization method using a peptide nucleic acid probe for identification of Salmonella spp. in a broad spectrum of samples
    C Almeida
    Centro de Engenharia Biólogica, Universidade do Minho, 4710 057 Braga, Portugal
    Appl Environ Microbiol 76:4476-85. 2010
  3. doi request reprint Time to "go large" on biofilm research: advantages of an omics approach
    Nuno F Azevedo
    IBB, Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, Braga 4710 057, Portugal
    Biotechnol Lett 31:477-85. 2009
  4. pmc Survival of gastric and enterohepatic Helicobacter spp. in water: implications for transmission
    N F Azevedo
    Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710 057 Braga, Portugal
    Appl Environ Microbiol 74:1805-11. 2008
  5. ncbi request reprint A new model for the transmission of Helicobacter pylori: role of environmental reservoirs as gene pools to increase strain diversity
    N F Azevedo
    Institute for Biotechnology and Bioengineering, Centre for Biological Engineering, Universidade do Minho, Braga, Portugal
    Crit Rev Microbiol 33:157-69. 2007
  6. pmc Coccoid form of Helicobacter pylori as a morphological manifestation of cell adaptation to the environment
    N F Azevedo
    Centro de Engenharia Biólogica, Campus de Gualtar, Universidade do Minho, 4710 057 Braga, Portugal
    Appl Environ Microbiol 73:3423-7. 2007
  7. doi request reprint Computational approaches to standard-compliant biofilm data for reliable analysis and integration
    Ana Margarida Sousa
    IBB Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710 057 Braga, Portugal
    J Integr Bioinform 9:203. 2012
  8. doi request reprint Comparison between standard culture and peptide nucleic acid 16S rRNA hybridization quantification to study the influence of physico-chemical parameters on Legionella pneumophila survival in drinking water biofilms
    M S Gião
    Institute for Biotechnology and Bioengineering, Centre for Biological Engineering, Universidade do Minho, Braga, Portugal
    Biofouling 25:343-51. 2009
  9. pmc Validation of a fluorescence in situ hybridization method using peptide nucleic acid probes for detection of Helicobacter pylori clarithromycin resistance in gastric biopsy specimens
    Laura Cerqueira
    IBB Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Braga, Portugal
    J Clin Microbiol 51:1887-93. 2013
  10. pmc PNA-FISH as a new diagnostic method for the determination of clarithromycin resistance of Helicobacter pylori
    Laura Cerqueira
    IBB Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar 4710 057, Braga, Portugal
    BMC Microbiol 11:101. 2011

Collaborators

Detail Information

Publications23

  1. pmc Nutrient shock and incubation atmosphere influence recovery of culturable Helicobacter pylori from water
    N F Azevedo
    Centro de Engenharia Biólogica, Universidade do Minho, 4700 057 Braga, Portugal
    Appl Environ Microbiol 70:490-3. 2004
    ..Besides highlighting and assessing the importance of several factors in the culturability of H. pylori, this paper demonstrates the potential ability to develop an optimized technique for recovery of this pathogen from water...
  2. pmc Fluorescence in situ hybridization method using a peptide nucleic acid probe for identification of Salmonella spp. in a broad spectrum of samples
    C Almeida
    Centro de Engenharia Biólogica, Universidade do Minho, 4710 057 Braga, Portugal
    Appl Environ Microbiol 76:4476-85. 2010
    ....
  3. doi request reprint Time to "go large" on biofilm research: advantages of an omics approach
    Nuno F Azevedo
    IBB, Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, Braga 4710 057, Portugal
    Biotechnol Lett 31:477-85. 2009
    ..Whether such device and analytical methods are already available, particularly for complex heterotrophic biofilms is, however, very debatable...
  4. pmc Survival of gastric and enterohepatic Helicobacter spp. in water: implications for transmission
    N F Azevedo
    Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710 057 Braga, Portugal
    Appl Environ Microbiol 74:1805-11. 2008
    ..felis, H. canadensis, H. pullorum, and H. canis, in water under several conditions and concludes that the roles of water in transmission between hosts are likely to be similar for all these species, whether enterohepatic or not...
  5. ncbi request reprint A new model for the transmission of Helicobacter pylori: role of environmental reservoirs as gene pools to increase strain diversity
    N F Azevedo
    Institute for Biotechnology and Bioengineering, Centre for Biological Engineering, Universidade do Minho, Braga, Portugal
    Crit Rev Microbiol 33:157-69. 2007
    ..pylori...
  6. pmc Coccoid form of Helicobacter pylori as a morphological manifestation of cell adaptation to the environment
    N F Azevedo
    Centro de Engenharia Biólogica, Campus de Gualtar, Universidade do Minho, 4710 057 Braga, Portugal
    Appl Environ Microbiol 73:3423-7. 2007
    ..This strongly supports the view that transformation into the coccoid form is an active, biologically led process, switched on by the bacterium as a protection mechanism...
  7. doi request reprint Computational approaches to standard-compliant biofilm data for reliable analysis and integration
    Ana Margarida Sousa
    IBB Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710 057 Braga, Portugal
    J Integr Bioinform 9:203. 2012
    ..org) - and a public repository on colony morphology signatures - MorphoCol (http://stardust.deb.uminho.pt/morphocol)...
  8. doi request reprint Comparison between standard culture and peptide nucleic acid 16S rRNA hybridization quantification to study the influence of physico-chemical parameters on Legionella pneumophila survival in drinking water biofilms
    M S Gião
    Institute for Biotechnology and Bioengineering, Centre for Biological Engineering, Universidade do Minho, Braga, Portugal
    Biofouling 25:343-51. 2009
    ..pneumophila. This raises public health concerns since culture methods are still considered to be the gold standard for assessing the presence of this opportunistic pathogen in water...
  9. pmc Validation of a fluorescence in situ hybridization method using peptide nucleic acid probes for detection of Helicobacter pylori clarithromycin resistance in gastric biopsy specimens
    Laura Cerqueira
    IBB Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Braga, Portugal
    J Clin Microbiol 51:1887-93. 2013
    ..pylori strains can subsist in very close proximity in the stomach...
  10. pmc PNA-FISH as a new diagnostic method for the determination of clarithromycin resistance of Helicobacter pylori
    Laura Cerqueira
    IBB Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar 4710 057, Braga, Portugal
    BMC Microbiol 11:101. 2011
    ..In this study, a new genotypic method to detect clarithromycin resistance in clinical samples, based on fluorescent in situ hybridization (FISH) using a set of peptide nucleic acid probes (PNA), is proposed...
  11. doi request reprint Incorporation of natural uncultivable Legionella pneumophila into potable water biofilms provides a protective niche against chlorination stress
    M S Gião
    IBB Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Braga, Portugal
    Biofouling 25:335-41. 2009
    ..pneumophila from re-entering an infectious state by maintaining residual disinfectant levels through the entire DWDS network so that the resuscitation of cells via contact with amoebae is prevented...
  12. pmc Effect of chlorine on incorporation of Helicobacter pylori into drinking water biofilms
    M S Gião
    Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710 057 Braga, Portugal
    Appl Environ Microbiol 76:1669-73. 2010
    ..Coupled with data obtained using viability stains in pure culture, this result suggests that H. pylori can survive chlorination but remain undetectable by culture methods, which can be effectively replaced by PNA hybridization...
  13. doi request reprint Validation of SYTO 9/propidium iodide uptake for rapid detection of viable but noncultivable Legionella pneumophila
    M S Gião
    Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710 057 Braga, Portugal
    Microb Ecol 58:56-62. 2009
    ..pneumophila cells in the environment...
  14. pmc Persistence of Helicobacter pylori in heterotrophic drinking-water biofilms
    M S Gião
    Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar 4710 057, Braga, Portugal
    Appl Environ Microbiol 74:5898-904. 2008
    ....
  15. pmc Shear stress, temperature, and inoculation concentration influence the adhesion of water-stressed Helicobacter pylori to stainless steel 304 and polypropylene
    N F Azevedo
    Centro de Engenharia Biólogica, Universidade do Minho, 4710 057 Braga, Portugal
    Appl Environ Microbiol 72:2936-41. 2006
    ..It will also allow a more rational selection of locations to perform molecular or plate culture analysis for the detection of H. pylori in drinking water-associated biofilms...
  16. ncbi request reprint Adhesion of water stressed Helicobacter pylori to abiotic surfaces
    N F Azevedo
    Centro de Engenharia Biólogica, Universidade do Minho, Braga, Portugal
    J Appl Microbiol 101:718-24. 2006
    ....
  17. ncbi request reprint Use of fluorescent in situ hybridisation for the visualisation of Helicobacter pylori in real drinking water biofilms
    S M Braganra
    Centro de Engenharia Biólogica, Universidade do Minho, 4700 057 Braga, Portugal
    Water Sci Technol 55:387-93. 2007
    ..The method requires, however, highly trained personnel for an accurate detection of the pathogen and will need simplification before being routinely used in standard water analysis laboratories...
  18. pmc Development and application of a novel peptide nucleic acid probe for the specific detection of Helicobacter pylori in gastric biopsy specimens
    N Guimaraes
    IBB Institute for Biotechnology and Bioengineering, Centre for Biological Engineering, Universidade do Minho, Campus de Gualtar 4710 057, Braga, Portugal
    J Clin Microbiol 45:3089-94. 2007
    ..has shown that this probe is highly specific for H. pylori strains. In addition, the PNA FISH method has been successfully adapted for detection of the pathogen in paraffin-embedded gastric biopsy specimens...
  19. pmc Discriminating multi-species populations in biofilms with peptide nucleic acid fluorescence in situ hybridization (PNA FISH)
    Carina Almeida
    Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualta, Braga, Portugal
    PLoS ONE 6:e14786. 2011
    ..However, the lack of reliable techniques for the discrimination of each population has meant that studies focusing on multi-species biofilms are scarce and typically generate qualitative rather than quantitative data...
  20. pmc BiofOmics: a Web platform for the systematic and standardized collection of high-throughput biofilm data
    Anália Lourenço
    IBB Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Braga, Portugal
    PLoS ONE 7:e39960. 2012
    ..However, biofilm data is widespread across ad hoc, non-standardized individual files and, thus, data interchange among researchers, or any attempt of cross-laboratory experimentation or analysis, is hardly possible or even attempted...
  21. pmc Development and application of a novel peptide nucleic acid probe for the specific detection of Cronobacter genomospecies (Enterobacter sakazakii) in powdered infant formula
    C Almeida
    Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, 4710 057 Braga, Portugal
    Appl Environ Microbiol 75:2925-30. 2009
    ..FISH using PNA could detect as few as 1 CFU per 10 g of Cronobacter in PIF after an 8-h enrichment step, even in a mixed population containing bacterial contaminants...
  22. pmc Detection of Escherichia coli in biofilms from pipe samples and coupons in drinking water distribution networks
    T Juhna
    Riga Technical University, Department of Water Engineering and Technology, 16 20 Azenes Street, Riga LV 1048, Latvia
    Appl Environ Microbiol 73:7456-64. 2007
    ....
  23. ncbi request reprint Establishment of a continuous model system to study Helicobacter pylori survival in potable water biofilms
    N F Azevedo
    Environmental Healthcare Unit, School of Biological Sciences, University of Southampton, Southampton, UK
    Water Sci Technol 47:155-60. 2003
    ..PNA probes provided an easy and quick way of performing fluorescence in situ hybridisation assays in heterogeneous biofilms...