Phenotypic profile and antibiogram of biofilm-producing bacteria isolates from diabetic foot ulcers in Zaria, Nigeria

Background: Diabetic foot ulcers (DFUs) present with high morbidity and reduce patient's quality of life. There is a gross paucity of data on biofilm-producing bacteria in DFU Infection in North-Western Nigeria. The study sought to determine the biofilm-forming ability of bacteria isolates from...

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Main Authors: Yahaya Usman, Adamu Girei Bakari, Idris Nasir Abdullahi, Abdurrahman El-Fulaty Ahmad, Fatima Sani-Bello, Atiene Solomon Sagay, Adebola Tolulope Olayinka
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2021-01-01
Series:Nigerian Postgraduate Medical Journal
Subjects:
Online Access:http://www.npmj.org/article.asp?issn=1117-1936;year=2021;volume=28;issue=4;spage=233;epage=239;aulast=Usman
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author Yahaya Usman
Adamu Girei Bakari
Idris Nasir Abdullahi
Abdurrahman El-Fulaty Ahmad
Fatima Sani-Bello
Atiene Solomon Sagay
Adebola Tolulope Olayinka
author_facet Yahaya Usman
Adamu Girei Bakari
Idris Nasir Abdullahi
Abdurrahman El-Fulaty Ahmad
Fatima Sani-Bello
Atiene Solomon Sagay
Adebola Tolulope Olayinka
author_sort Yahaya Usman
collection DOAJ
description Background: Diabetic foot ulcers (DFUs) present with high morbidity and reduce patient's quality of life. There is a gross paucity of data on biofilm-producing bacteria in DFU Infection in North-Western Nigeria. The study sought to determine the biofilm-forming ability of bacteria isolates from DFUs and determine their antimicrobial susceptibility pattern in Zaria, North-Western Nigeria. Materials and Methods: This hospital-based cross-sectional study of patients with DFUs was conducted from June 2018 to February 2020. Consecutive biopsies were aseptically collected. Bacteria were isolated and identified using a Microgen kit. Biofilm forming ability and antibiogram of isolates were determined using microtitre plate and disk diffusion methods, respectively. Results: Of the 225 participants enrolled, males constituted the majority, 144 (64.0%) with 88 (36.0%) females, the median age of participants was 54 (48–60) years, and the age range was 36–77 years. A total of 172 bacteria were isolated, and 123 (71.5%) were biofilm producers. Staphylococcus aureus (26.7%) was the highest biofilm producer, while Citrobacter freundii and Stenotrophomonas maltophilia were the least biofilm producers, 1 (0.6%) each. A disproportionate resistance pattern was demonstrated among the biofilm and non-biofilm producers against the cephalosporins tested, ceftazidime (68% vs. 18%), ceftriaxone (50% vs. 8.0%) and cefotaxime (21% vs. 0.0%). About 46% and 68% of the biofilm producers were resistant to gentamycin and ciprofloxacin, respectively. While only 2% of the non-biofilm producers were resistant to imipenem, 11% of the biofilm producers were resistant to it. Conclusion: These findings revealed a high proportion of biofilm-producing bacteria and were more resistant than non-biofilm producers.
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spelling doaj.art-f8a3532f6bcd45d1904746466ce0f8f32022-12-21T18:36:32ZengWolters Kluwer Medknow PublicationsNigerian Postgraduate Medical Journal1117-19362468-68752021-01-0128423323910.4103/npmj.npmj_552_21Phenotypic profile and antibiogram of biofilm-producing bacteria isolates from diabetic foot ulcers in Zaria, NigeriaYahaya UsmanAdamu Girei BakariIdris Nasir AbdullahiAbdurrahman El-Fulaty AhmadFatima Sani-BelloAtiene Solomon SagayAdebola Tolulope OlayinkaBackground: Diabetic foot ulcers (DFUs) present with high morbidity and reduce patient's quality of life. There is a gross paucity of data on biofilm-producing bacteria in DFU Infection in North-Western Nigeria. The study sought to determine the biofilm-forming ability of bacteria isolates from DFUs and determine their antimicrobial susceptibility pattern in Zaria, North-Western Nigeria. Materials and Methods: This hospital-based cross-sectional study of patients with DFUs was conducted from June 2018 to February 2020. Consecutive biopsies were aseptically collected. Bacteria were isolated and identified using a Microgen kit. Biofilm forming ability and antibiogram of isolates were determined using microtitre plate and disk diffusion methods, respectively. Results: Of the 225 participants enrolled, males constituted the majority, 144 (64.0%) with 88 (36.0%) females, the median age of participants was 54 (48–60) years, and the age range was 36–77 years. A total of 172 bacteria were isolated, and 123 (71.5%) were biofilm producers. Staphylococcus aureus (26.7%) was the highest biofilm producer, while Citrobacter freundii and Stenotrophomonas maltophilia were the least biofilm producers, 1 (0.6%) each. A disproportionate resistance pattern was demonstrated among the biofilm and non-biofilm producers against the cephalosporins tested, ceftazidime (68% vs. 18%), ceftriaxone (50% vs. 8.0%) and cefotaxime (21% vs. 0.0%). About 46% and 68% of the biofilm producers were resistant to gentamycin and ciprofloxacin, respectively. While only 2% of the non-biofilm producers were resistant to imipenem, 11% of the biofilm producers were resistant to it. Conclusion: These findings revealed a high proportion of biofilm-producing bacteria and were more resistant than non-biofilm producers.http://www.npmj.org/article.asp?issn=1117-1936;year=2021;volume=28;issue=4;spage=233;epage=239;aulast=Usmanantibiogrambacteriabiofilmsdiabetic foot ulcersnigeriazaria
spellingShingle Yahaya Usman
Adamu Girei Bakari
Idris Nasir Abdullahi
Abdurrahman El-Fulaty Ahmad
Fatima Sani-Bello
Atiene Solomon Sagay
Adebola Tolulope Olayinka
Phenotypic profile and antibiogram of biofilm-producing bacteria isolates from diabetic foot ulcers in Zaria, Nigeria
Nigerian Postgraduate Medical Journal
antibiogram
bacteria
biofilms
diabetic foot ulcers
nigeria
zaria
title Phenotypic profile and antibiogram of biofilm-producing bacteria isolates from diabetic foot ulcers in Zaria, Nigeria
title_full Phenotypic profile and antibiogram of biofilm-producing bacteria isolates from diabetic foot ulcers in Zaria, Nigeria
title_fullStr Phenotypic profile and antibiogram of biofilm-producing bacteria isolates from diabetic foot ulcers in Zaria, Nigeria
title_full_unstemmed Phenotypic profile and antibiogram of biofilm-producing bacteria isolates from diabetic foot ulcers in Zaria, Nigeria
title_short Phenotypic profile and antibiogram of biofilm-producing bacteria isolates from diabetic foot ulcers in Zaria, Nigeria
title_sort phenotypic profile and antibiogram of biofilm producing bacteria isolates from diabetic foot ulcers in zaria nigeria
topic antibiogram
bacteria
biofilms
diabetic foot ulcers
nigeria
zaria
url http://www.npmj.org/article.asp?issn=1117-1936;year=2021;volume=28;issue=4;spage=233;epage=239;aulast=Usman
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