alexa Comparative In-vitro Activities Of Trimethoprim-sulfamethoxazole And The New Fluoroquinolones Against Confirmed Extended Spectrum β-lactamase Producing Stenotrophomonas Maltophilia Recovered From The Eastern Cape Province, South Africa
ISSN: 2155-9597

Journal of Bacteriology & Parasitology
Open Access

Like us on:
OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Share This Page

Additional Info

Loading
Loading Please wait..
 

2nd International Congress on Bacteriology & Infectious Diseases
November 17-19, 2014 DoubleTree by Hilton Hotel Chicago-North Shore, USA

Adeyemi O O, Nwodo U U, Arinze A S and Okoh A I
Posters: J Bacteriol Parasitol
DOI: 10.4172/2155-9597.S1.007
Abstract
Stenotrophomonas maltophilia is increasingly emerging as an opportunistic pathogen of global concern. Due to its inherent resistance to several classes of antibiotics including carbapenems and its ability to acquire moblile resitance elements, treatment of infections caused by S. maltophilia is a constant challenge for clinicians. Trimethoprim-sulphamethoxazole (TMPSMX) is the generally accepted antibiotic of choice for the treatment of infections caused by this organism, but resistance to the drug is increasingly being reported; hence, the need for alternative therapeutic options. In this study, the antimicrobial susceptibility profile of one hundred and ten (110) commensal Stenotrophomonas maltophilia isolates obtained from Nkonkobe municipality, Eastern Cape Province was investigated. Twenty one antibiotics including trimethoprim-sulphamethoxazole and the newer fluoroquinolones; levofloxacin, gatifloxacin and moxifloxacin were included in the antibiotic panel. About 63.4% of the isolates were susceptible to trimethoprim-sulfamethoxazole with a resistance rate of 28.2%. The fluoroquinolones were more effective with susceptibilities ranging from 76% to 94.7%. Resistance to the fluoroquinolones ranged from 1.3% to 2.7%. Levofloxacin was the most effective fluoroquinolone tested. Phenotypic dectection of ESBLs showed double disc synergy test (DDST) positivity in 59.5% of the isolates. Cefepime was the most sensitive indicator cephalosporin in the DDST with 77.3% of suspected ESBL-producing isolates showing cefepime-clavulanic acid synergy. The isolates exhibited nine different ESBL phenotypes, however, PCR amplification of the bla genes revealed four isolates that possessed genes belonging to the CTX-M group (CTX-M-1 and CTX-M-8 groups). ESBL genes are usually carried on mobile elements such as plasmids and transposons which may also bear genes that mediate resistance to aminoglycosides, tetracyclines, trimethoprim-sulfamethoxazole and fluoroquinolones. ESBL positive isolates appeared more susceptible to the fluoroquinolones compared to TMP-SMX but there was no significant relationship between ESBL production and susceptibility to these drugs (p>0.05). The newer fluoroquinolones are a possible alternative treatment option for S. maltophilia infections in this environment but further studies and clinical investigations are needed to determine the in vivo efficacy of these drugs.
Biography
Adeyemi O O holds BSc (Hons), MSc and PhD degrees in Microbiology. He has been a recipient of awards, such as Postgraduate Fellowship Award, Obafemi Awolowo University, Ile-Ife, Nigeria, 1990-1992; United Nations University Fellowship (1998); UNESCO Biotechnology Action Council Fellowship (2000), as well as several grants from the NRF, MRC, WRC, ESKOM, RSDFID and ISRAR/APUA. He has 300 publications made of over 195 journal articles; several conference presentations and nucleotide sequences deposited in GenBank in his academic career of over two decades. In 2007, he established his research group called Applied and Environmental Microbiology Research Group (AEMREG) in the Department of Biochemistry and Microbiology of the University of Fort Hare, and the group is currently made up of about 30 research students at the Honours, Master?s and Doctoral levels. He is President of the South Africa Society for Microbiology (2011-2013), and in November 2013 he was appointed Leader of the Water Resources for Sustainable Development Niche Area at the University of Fort Hare for the next five years. He is also a member of the South Africa National Committee on IUMS, and also a C2 (Established Researcher) rated researcher.
image PDF   |   image HTML
 

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords