scholarly journals Evaluation of antibiotic resistance associated with ophthalmic oqxAB pumps in Klebsiella pneumoniae causing urinary tract infection

2019 ◽  
Vol 29 (2) ◽  
pp. 163-170
Author(s):  
Atousa Zomorrodi ◽  
Mohsen Zargar ◽  
Jamileh Noroozi ◽  
◽  
◽  
...  
Keyword(s):  
Urinary Tract Infection ◽  
Antibiotic Resistance ◽  
Urinary Tract ◽  
Tract Infection ◽  
Klebsiella Pneumoniae

scholarly journals Multiple-Antibiotic Resistance Mediated by Plasmids and Integrons in Uropathogenic Escherichia coli and Klebsiella pneumoniae

1970 ◽  
Vol 24 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Taslima Taher Lina ◽  
Sabita Rezwana Rahman ◽  
Donald James Gomes
Keyword(s):  
Escherichia Coli ◽  
Drug Resistance ◽  
Urinary Tract Infection ◽  
Antibiotic Resistance ◽  
Urinary Tract ◽  
Tract Infection ◽  
Klebsiella Pneumoniae ◽  
High Rate ◽  
E Coli ◽  
Class 1

Antibiotic resistance in urinary tract infection (UTI) is a growing public health problem in the world. In this study, a total of 182 uropathogens were isolated from patients with symptoms of urinary tract infection (UTI). Escherichia coli (88%) was the most prevalent isolate, while Klebsiella pneumoniae was recovered from 12% cases. The male/female ratio was 1:3. About 56% female and 51% male patients belonged to the age group >40 years. The antibiotic resistance rates of the isolates to fifteen different drugs were investigated. E. coli and K. pneumoniae showed variable pattern of susceptibility. The percentage of resistance to different drugs was higher in E. coli isolates compared to that of K. pneumoniae. Among the total number of isolates about 87% were resistant to at least three commonly used antibiotics. All the isolates were sensitive to imipenem. Analysis of the plasmid DNA had shown that the plasmid pattern was very diverse in both E. coli and K. pneumoniae. All the isolates contained multiple numbers of plasmid ranging from 1.0 to >140 MDa. Middleranged plasmids (30 to 80 MDa), the transferable resistance plasmids, were found to be present in 86% E. coli and 85% K. pneumoniae isolates. The strong association observed between plasmid profiles and drug resistance patterns suggest that plasmids other than the common plasmids may have epidemiological significance. The presence of class 1 and class 2 integrons were also investigated. A relatively high occurrence of class 1 integrons, that are associated with lateral transfer of antibacterial resistance genes, was observed in K. pneumoniae (88%) than in E. coli isolates (54%). Class 2 integrons were not found in any of the E. coli and K. pneumoniae isolates. These results show the high rate of drug resistance and the presence of high rate of transferable elements in these MDR isolates. Keywords: Uropathogens, Escherichia coli, Klebsiella pneumoniae, Multidrug-resistant (MDR) bacteria, Plasmid profiles, IntegronsDOI: http://dx.doi.org/10.3329/bjm.v24i1.1231 Bangladesh J Microbiol, Volume 24, Number 1, June 2007, pp 19-23

scholarly journals Detection of OqxAB and QepA Efflux Pumps and Their Association with Antibiotic Resistance in Klebsiella pneumoniae Isolated From Urinary Tract Infection

2020 ◽  
Vol 7 (4) ◽  
Author(s):  
Manijeh Dehnamaki ◽  
Maryam Ghane ◽  
Laleh Babaeekhou
Keyword(s):  
Urinary Tract Infection ◽  
Antibiotic Resistance ◽  
Urinary Tract ◽  
Tract Infection ◽  
Klebsiella Pneumoniae ◽  
Efflux Pump ◽  
Efflux Pumps ◽  
Diffusion Method ◽  
Beta Lactam ◽  
Disk Diffusion Method

Background: The emergence and spread of drug resistance among Klebsiella pneumoniae clinical isolates have limited the treatment options for these bacteria. Efflux pumps are considered as one of the key mechanisms of antibiotic resistance in K. pneumoniae isolates. Objectives: The present study aimed to detect oqxA, oqxB, and qepA efflux genes in K. pneumoniae isolated from urinary tract infection (UTI) and survey their association with antibiotic resistance. Methods: In total, 100 K. pneumoniae isolates were obtained from urine samples, and an antimicrobial susceptibility test was conducted using the disk diffusion method according to the Clinical and Laboratory Standards Institute (CLSI) instructions. Polymerase chain reaction (PCR) was done for the detection of efflux pump genes including, oqxA, oqxB, and qepA, and their association was statistically analyzed with resistance to antibiotics. Results: The highest rate of resistance was obtained against trimethoprim-sulfamethoxazole (72%), amikacin (70%), levofloxacin (68%), gentamicin (56%), ceftazidime (56%), and ceftriaxone (51%), and the lowest resistance was against imipenem (10%). Thirty one percent of isolates were multidrug resistant (MDR). Molecular distribution test showed that 57% and 56% of isolates carried the oqxA and oqxB genes, respectively. Also, the frequency of qepA genes was 21%. The presence of oqxA/oqxB and qepA efflux genes were significantly associated with fluoroquinolone and beta-lactam resistance phenotypes (P < 0.05). Conclusions: The high frequency of efflux genes showed that this resistance mechanism is the main way, along with other resistance mechanisms in K. pneumoniae isolates. It is necessary to adopt appropriate treatment to reduce the incidence of resistance.

Multidrug-resistant mcr-1 gene-positive Klebsiella pneumoniae ST307 causing urinary tract infection in a cat

2021 ◽  
Author(s):  
Alessandra Tammy Hayakawa Ito de Sousa ◽  
Marco Túlio dos Santos Costa ◽  
Herica Makino ◽  
Stéfhano Luis Cândido ◽  
Isabela de Godoy Menezes ◽  
...  
Keyword(s):  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Tract Infection ◽  
Klebsiella Pneumoniae ◽  
Multidrug Resistant

The Benefits and Harms of Antibiotic Prophylaxis for Urinary Tract Infection in Older Adults

2021 ◽  
Author(s):  
Bradley J Langford ◽  
Kevin A Brown ◽  
Christina Diong ◽  
Alex Marchand-Austin ◽  
Kwaku Adomako ◽  
...  
Keyword(s):  
Older Adults ◽  
Urinary Tract Infection ◽  
Antibiotic Resistance ◽  
Urinary Tract ◽  
Tract Infection ◽  
Antibiotic Prophylaxis ◽  
Bloodstream Infection ◽  
Antibiotic Treatment ◽  
Positive Culture ◽  
Clostridioides Difficile

Abstract Background The role of antibiotics in preventing urinary tract infection (UTI) in older adults is unknown. We sought to quantify the benefits and risks of antibiotic prophylaxis among older adults. Methods We conducted a matched cohort study comparing older adults (≥66 years) receiving antibiotic prophylaxis, defined as antibiotic treatment for ≥30 days starting within 30 days of a positive culture, with patients with positive urine cultures who received antibiotic treatment but did not receive prophylaxis. We matched each prophylaxis recipient to 10 nonrecipients based on organism, number of positive cultures, and propensity score. Outcomes included (1) emergency department (ED) visit or hospitalization for UTI, sepsis, or bloodstream infection within 1 year; (2) acquisition of antibiotic resistance in urinary tract pathogens; and (3) antibiotic-related complications. Results Overall, 4.7% (151/3190) of UTI prophylaxis patients and 3.6% (n = 1092/30 542) of controls required an ED visit or hospitalization for UTI, sepsis, or bloodstream infection (hazard ratio [HR], 1.33; 95% confidence interval [CI], 1.12–1.57). Acquisition of antibiotic resistance to any urinary antibiotic (HR, 1.31; 95% CI, 1.18–1.44) and to the specific prophylaxis agent (HR, 2.01; 95% CI, 1.80–2.24) was higher in patients receiving prophylaxis. While the overall risk of antibiotic-related complications was similar between groups (HR, 1.08; 95% CI, .94–1.22), the risk of Clostridioides  difficile and general medication adverse events was higher in prophylaxis recipients (HR [95% CI], 1.56 [1.05–2.23] and 1.62 [1.11–2.29], respectively). Conclusions Among older adults with UTI, the harms of long-term antibiotic prophylaxis may outweigh their benefits.

scholarly journals Nontypable Haemophilus influenzae Septicemia and Urinary Tract Infection Associated with Renal Stone Disease

2018 ◽  
Vol 12 (1) ◽  
pp. 243-247
Author(s):  
Marianne Stærk ◽  
Sara A. Tolouee ◽  
Jens J. Christensen
Keyword(s):  
Urinary Tract Infection ◽  
Antibiotic Resistance ◽  
Urinary Tract ◽  
Tract Infection ◽  
Haemophilus Influenzae ◽  
Renal Stone ◽  
Stone Disease ◽  
Upper Respiratory Tract ◽  
Renal Stone Disease ◽  
Tract Infections

Introduction: Haemophilus influenzae commonly causes upper respiratory tract infections and has only rarely been reported etiology of urinary tract infections. Since the introduction of the Haemophilus influenzae b (Hib) vaccine, non-typable haemophilus species now cause the majority of invasive disease in Europe. Case Report: We report a case of an adult man with non-typable Haemophilus influenzae septicemia, urinary tract infection and bilateral renal stone disease. The patient presented with right sided flank pain and a CT scan showed bilateral renal stones and a right sided ureteral stone causing obstruction. Results and Discussion: Haemophilus influenzae was identified in blood and urine and despite a tendency of increasing antibiotic resistance among Haemophilus influenzae, our strain was susceptible to all antibiotics tested. Treatment consisted of 3 days of intravenous cefuroxime, insertion of a right sided JJ ureteric stent and 5 days of peroral ciprofloxacin after discharge. Physicians and microbiologists should be aware of Haemophilus influenzae as a possible urinary tract pathogen, especially when urinary tract abnormalities are present, and take the risk of antibiotic resistance into consideration at initial treatment.

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