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INVESTIGATION OF BIOFILM FORMATION IN COAGULASE-NEGATIVE STAPHYLOCOCCI ISOLATED FROM PLATELET CONCENTRATE BAGS

Overview of attention for article published in Revista do Instituto de Medicina Tropical de São Paulo, January 2016
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Title
INVESTIGATION OF BIOFILM FORMATION IN COAGULASE-NEGATIVE STAPHYLOCOCCI ISOLATED FROM PLATELET CONCENTRATE BAGS
Published in
Revista do Instituto de Medicina Tropical de São Paulo, January 2016
DOI 10.1590/s1678-9946201658001
Pubmed ID
Authors

Rosiéli MARTINI, Rosmari HÖRNER, Roberta Filipini RAMPELOTTO, Litiérri Razia Litiérri GARZON, Melise Silveira NUNES, Mayza Dalcin TEIXEIRA, Daniel Ângelo Sganzerla GRAICHEN

Abstract

Platelet Concentrates (PCs) are the blood components with the highest rate of bacterial contamination, and coagulase-negative staphylococci (CoNS) are the most frequently isolated contaminants. This study investigated the biofilm formation of 16 contaminated units out of 691 PCs tested by phenotypic and genotypic methods. Adhesion in Borosilicate Tube (ABT) and Congo Red Agar (CRA) tests were used to assess the presence of biofilm. The presence of icaADC genes was assessed by means of the Polymerase Chain Reaction (PCR) technique. With Vitek(r)2, Staphylococcus haemolyticus was considered the most prevalent CoNS (31.25%). The CRA characterized 43.8% as probable biofilm producers, and for the ABT test, 37.5%. The icaADC genes were identified in seven samples by the PCR. The ABT technique showed 85.7% sensitivity and 100% specificity when compared to the reference method (PCR), and presented strong agreement (k = 0.8). This study shows that species identified as PCs contaminants are considered inhabitants of the normal skin flora and they might become important pathogens. The results also lead to the recommendation of ABT use in laboratory routine for detecting biofilm in CoNS contaminants of PCs.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 20 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 20 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 4 20%
Researcher 3 15%
Student > Doctoral Student 2 10%
Student > Master 2 10%
Professor > Associate Professor 2 10%
Other 5 25%
Unknown 2 10%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 5 25%
Medicine and Dentistry 4 20%
Immunology and Microbiology 3 15%
Chemistry 2 10%
Agricultural and Biological Sciences 2 10%
Other 2 10%
Unknown 2 10%

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 26 February 2016.
All research outputs
#10,045,366
of 12,556,257 outputs
Outputs from Revista do Instituto de Medicina Tropical de São Paulo
#238
of 251 outputs
Outputs of similar age
#186,092
of 267,083 outputs
Outputs of similar age from Revista do Instituto de Medicina Tropical de São Paulo
#1
of 1 outputs
Altmetric has tracked 12,556,257 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
So far Altmetric has tracked 251 research outputs from this source. They receive a mean Attention Score of 2.9. This one is in the 22nd percentile – i.e., 22% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 267,083 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 16th percentile – i.e., 16% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 1 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them