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Curli fimbria: an Escherichia coli adhesin associated with human cystitis

Overview of attention for article published in Brazilian Journal of Microbiology, March 2016
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Title
Curli fimbria: an Escherichia coli adhesin associated with human cystitis
Published in
Brazilian Journal of Microbiology, March 2016
DOI 10.1016/j.bjm.2016.01.024
Pubmed ID
Authors

Melina Aparecida Cordeiro, Catierine Hirsch Werle, Guilherme Paier Milanez, Tomomasa Yano

Abstract

Escherichia coli is the major causative agent of human cystitis. In this study, a preliminary molecular analysis carried out by PCR (polymerase chain reaction) demonstrated that 100% of 31 E. coli strains isolated from patients with recurrent UTIs (urinary tract infections) showed the presence of the curli fimbria gene (csgA). Curli fimbria is known to be associated with bacterial biofilm formation but not with the adhesion of human cystitis-associated E. coli. Therefore, this work aimed to study how curli fimbria is associated with uropathogenic E. coli (UPEC) as an adhesion factor. For this purpose, the csgA gene was deleted from strain UPEC-4, which carries three adhesion factor genes (csgA, fimH and ompA). The wild-type UPEC-4 strain and its mutant (ΔcsgA) were analyzed for their adhesion ability over HTB-9 (human bladder carcinoma), Vero (kidney cells of African green monkey) and HUVEC (human umbilical vein) cells in the presence of α-d-mannose. All the wild-type UPEC strains tested (100%) were able to adhere to all three cell types, while the UPEC-4 ΔcsgA mutant lost its adherence to HTB-9 but continued to adhere to the HUVEC and Vero cells. The results suggest that curli fimbria has an important role in the adhesion processes associated with human UPEC-induced cystitis.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 70 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Brazil 1 1%
Unknown 69 99%

Demographic breakdown

Readers by professional status Count As %
Student > Master 10 14%
Student > Ph. D. Student 10 14%
Student > Bachelor 9 13%
Researcher 6 9%
Student > Doctoral Student 5 7%
Other 8 11%
Unknown 22 31%
Readers by discipline Count As %
Immunology and Microbiology 12 17%
Biochemistry, Genetics and Molecular Biology 11 16%
Agricultural and Biological Sciences 10 14%
Medicine and Dentistry 4 6%
Chemistry 3 4%
Other 4 6%
Unknown 26 37%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 19 March 2016.
All research outputs
#22,759,802
of 25,374,917 outputs
Outputs from Brazilian Journal of Microbiology
#1,047
of 1,377 outputs
Outputs of similar age
#269,378
of 312,879 outputs
Outputs of similar age from Brazilian Journal of Microbiology
#29
of 40 outputs
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So far Altmetric has tracked 1,377 research outputs from this source. They receive a mean Attention Score of 3.6. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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We're also able to compare this research output to 40 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.