↓ Skip to main content

Prevalence of virulence genes of biofilm producing strains of Staphylococcus epidermidis isolated from clinical samples in Iran

Overview of attention for article published in AMB Express, August 2015
Altmetric Badge

About this Attention Score

  • Average Attention Score compared to outputs of the same age
  • Average Attention Score compared to outputs of the same age and source

Mentioned by

twitter
2 tweeters

Citations

dimensions_citation
16 Dimensions

Readers on

mendeley
42 Mendeley
You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output. Click here to find out more.
Title
Prevalence of virulence genes of biofilm producing strains of Staphylococcus epidermidis isolated from clinical samples in Iran
Published in
AMB Express, August 2015
DOI 10.1186/s13568-015-0134-3
Pubmed ID
Authors

Seyed Mostafa Solati, Elahe Tajbakhsh, Faham Khamesipour, Harish C Gugnani

Abstract

Coagulase negative staphylococci are recognized as opportunistic pathogens and are widespread in the environment. It is possible to prevent and control infections due to these bacteria if their virulence factors are recognized. Eighty isolates of Staphylococcus epidermidis (S. epidermidis) including 42 from urine (52.5%), 23 from blood (28.75%), 15 from dialysis bags (18.75%) were studied for biofilm production on Congo red agar (CRA). The virulence genes in S. aureus were investigated using polymerase chain reaction (PCR) with primers. Out of 80 isolates studied, 40 isolated (50%) formed black colonies (biofilm-forming strains) on CRA. In 22 of these isolates (25%) reaction was strongly positive; in 12 isolates (15%) reaction was moderately positive, and in the remaining 6 isolates, reaction was weakly positive. In the 22 isolates that had strong positive reaction and produced black colonies on biofilm, all virulent genes (icaC, icaD, icaA icaB, icaR) were expressed. In the 12 isolates that had moderate positive reaction, 8 expressed all genes (icaC, icaD, icaA icaB, icaR) expressed while the remaining 4 expressed only ica A, and ica D genes. Of the 6 isolated which had weak positive reaction, only 1 isolate (2.5%) expressed all the genes, in the other 5 isolates no gene was observed. Urinary isolates more frequently form biofilms than the isolates from other clinical samples. Statistical analysis using Chi square test showed that there was a significant correlation between the type of sample and the biofilm production (P < 0.05). The results of biofilm production on CRA were largely in agreement with microtiter plate assay and PCR assay. The capacity of bacteria to produce biofilm is an important factor in infectivity and happens via expression of ica genes. Recognition of bacteria that produce biofilm is thus important to control infection due to these bacteria.

Twitter Demographics

The data shown below were collected from the profiles of 2 tweeters 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 42 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 42 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 7 17%
Student > Bachelor 7 17%
Student > Master 6 14%
Researcher 6 14%
Other 4 10%
Other 7 17%
Unknown 5 12%
Readers by discipline Count As %
Agricultural and Biological Sciences 11 26%
Immunology and Microbiology 9 21%
Biochemistry, Genetics and Molecular Biology 6 14%
Medicine and Dentistry 4 10%
Veterinary Science and Veterinary Medicine 1 2%
Other 4 10%
Unknown 7 17%

Attention Score in Context

This research output has an Altmetric Attention Score of 2. 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 09 August 2015.
All research outputs
#2,712,448
of 5,462,004 outputs
Outputs from AMB Express
#79
of 268 outputs
Outputs of similar age
#94,501
of 190,758 outputs
Outputs of similar age from AMB Express
#6
of 27 outputs
Altmetric has tracked 5,462,004 research outputs across all sources so far. This one is in the 47th percentile – i.e., 47% of other outputs scored the same or lower than it.
So far Altmetric has tracked 268 research outputs from this source. They receive a mean Attention Score of 2.1. This one has gotten more attention than average, scoring higher than 53% of its peers.
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 190,758 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 46th percentile – i.e., 46% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 27 others from the same source and published within six weeks on either side of this one. This one is in the 44th percentile – i.e., 44% of its contemporaries scored the same or lower than it.