scholarly journals Transfer of Herb-Resistance Plasmid From Escherichia coli to Staphylococcus aureus Residing in the Human Urinary Tract

2014 ◽  
Vol 7 (3) ◽  
Author(s):  
Yan Qing Tong ◽  
Bing Xin ◽  
Li Zhu
2001 ◽  
Vol 45 (12) ◽  
pp. 3524-3530 ◽  
Author(s):  
Christoph K. Naber ◽  
Michaela Hammer ◽  
Martina Kinzig-Schippers ◽  
Christian Sauber ◽  
Fritz Sörgel ◽  
...  

ABSTRACT In a randomized crossover study, 16 volunteers (8 men, 8 women) received single oral doses of 320 mg of gemifloxacin and 400 mg of ofloxacin on two separate occasions in the fasting state to assess the urinary excretion and urinary bactericidal titers (UBTs) at intervals for up to 144 h. Ofloxacin showed higher concentrations in urine compared with those of gemifloxacin. The median (range) cumulative excretion of gemifloxacin was 29.7% (8.4 to 48.7%) of the parent drug administered, and median (range) cumulative excretion of ofloxacin was 84.3% (46.5 to 95.2%) of the parent drug administered. The UBTs, i.e., the highest twofold dilutions (with antibiotic-free urine as the diluent) of urine that were still bactericidal, were determined for a reference strain and nine uropathogens for which the MICs of gemifloxacin and ofloxacin were as follows:Escherichia coli ATCC 25922, 0.016 and 0.06 μg/ml, respectively; Klebsiella pneumoniae, 0.03 and 0.06 μg/ml, respectively; Proteus mirabilis, 0.125 and 0.125 μg/ml, respectively; Escherichia coli, 0.06 and 0.5 μg/ml, respectively; Pseudomonas aeruginosa, 1 and 4 μg/ml, respectively; Staphylococcus aureus, 0.008 and 0.25 μg/ml, respectively; Enterococcus faecalis, 0.06 and 2 μg/ml, respectively;Staphylococcus aureus, 0.25 and 4 μg/ml, respectively;Enterococcus faecalis, 0.5 and 32 μg/ml, respectively; and Staphylococcus aureus, 2 and 32 μg/ml, respectively. Generally, the UBTs for gram-positive uropathogens were higher for gemifloxacin than for ofloxacin and the UBTs for gram-negative uropathogens were higher for ofloxacin than for gemifloxacin. According to the UBTs, ofloxacin-resistant uropathogens (MICs, ≥4 mg/liter) should also be considered gemifloxacin resistant. Although clinical trials have shown that gemifloxacin is effective for the treatment of uncomplicated urinary tract infections, whether an oral dosage of 320 mg of gemifloxacin once daily is also adequate for the treatment of complicated urinary tract infections has yet to be confirmed.


2019 ◽  
pp. 34-41

This study was to determine the bacteria that are prevalent in Urinary tract infections and the sensitivity of organisms isolated from the urine of adolescent and adult women of 8- 52 years old in Ogbete Coal camp in Enugu metropolis, south east Nigeria. A total of 218 individuals, both in and out patients were investigated, 197 (90.3%) women were diagnosed for Urinary tract infections. Therefore, incidence of UTI were prevalent in the age groups of 13-17 and 18-22, with P value (p=0.047 and S.D of ± 5.6). The microorganisms implicated in infection were bacteria, fungi, yeast and protozoa. Among the bacteria, two were identified as Gram positive cocci i.e. Staphylococcus aureus and Staphylococcus saprophyticus, while Gram negative bacilli were Escherichia coli, Klebsiella, Proteus, Pseudomonas areuginosa. Yeast like fungus Candida albican, protozoan (Trichomonasvaginalis) was also identified. The isolated organism which was prevalent was Staphylococcus aureus (48.2%); followed by Escherichia coli (34.5%). Also, Pseudomonas aureuginosa, Proteus and Klebsiella were isolated. Factors responsible for frequent cases of Urinary tract infections among diagnosed women include shortness of urethra among the females, lack of personal hygiene, sexual intercourse, socio economic challenges in various homes and others. Sensitivity profiles revealed that Augumentin was highly susceptible to Staphylococcus aureus (65%) while Escherichia coli were highly resistant to commonly used drugs such as Ampicillin, and Cloxacillin while Gentamycin was the most active against bacteria isolates. Keywords: Urinary Tract Infection, Adolescent Women, Antimicrobial Sensitivity, Staphylococcus aureus, Escherichia coli


2003 ◽  
Vol 24 (7) ◽  
pp. 506-513 ◽  
Author(s):  
Trupti A. Gaonkar ◽  
Lester A. Sampath ◽  
Shanta M. Modak

AbstractObjectives:To evaluate the long-term efficacy of urinary Foley catheters (latex and silicone) impregnated with (1) chlorhexidine and silver sulfadiazine (CXS) and (2) chlorhexidine, silver sulfadiazine, and triclosan (CXST) in inhibiting extra-luminal bacterial adherence and to compare their efficacy with that of silver hydrogel latex (SH) and nitrofurazone-treated silicone (NF) catheters.Design:The antimicrobial spectrum of these catheters was evaluated using a zone of inhibition assay. A novel in vitro urinary tract model was developed to study the potential in vivo efficacy of antimicrobial catheters in preventing extraluminal bacterial colonization. The “meatus” was inoculated daily with Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Enterococcus faecalis, Pseudomonas aeruginosa, and Candida albicans. The “bladder” portion of the model was cultured daily to determine bacterial growth.Results:Both CXS and CXST catheters had a broader antimicrobial spectrum than SH and NF catheters. In the in vitro model, CXST latex and silicone catheters exhibited significantly better efficacy (3 to 25 days) against uropathogens, compared with CXS (1 to 14 days) and control (0 to 5 days) catheters (P = .01). CXST latex catheters exhibited significantly longer protection against Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, and Pseudomonas aeruginosa, compared with SH catheters (P = .01). CXST silicone catheters resisted colonization with Staphylococcus aureus and Staphylococcus epidermidis for a significantly longer period (23 to 24 days) than did NF catheters (9 to 11 days) (P = .01).Conclusion:Catheters impregnated with synergistic combinations of chlorhexidine, silver sulfadiazine, and triclosan exhibited broad-spectrum, long-term resistance against microbial colonization on their outer surfaces (Infect Control Hosp Epidemiol 2003;24:506-513)


1976 ◽  
Vol 4 (4) ◽  
pp. 326-329
Author(s):  
R E Wooley ◽  
J L Blue

The most prevalent microorganisms isolated from urine specimens of dogs (385) and cats (132) with clinical signs of urinary tract infections were Escherichia coli, Proteus spp., and Staphylococcus aureus. The results of quantitative urine-culturing methods showed 48.6% of the canine and 12.1% of the feline specimens had more than 10(5) organisms per ml of urine. The bacteria isolated appear to have a greater resistance to antibacterial agents than previously reported.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Emmanuel Adémólá Anígilájé ◽  
Terkaa Terrumun Bitto

Background. Children with cerebral palsy (CP) are prone to urinary tract infection (UTI).Methods/Objectives.The prevalence and the predictors of UTI among children with CP were compared to age- and sex-matched children without CP at Federal Medical Centre, Makurdi, Nigeria, from December 2011 to May 2013.Results. The age range was between 2 and 15 years with a mean age of years including 30 males and 22 females. UTI was confirmed in 20 (38.5%) CP children compared to 2 children (3.8%) without CP ( value 0.000). Among CP children,Escherichia coliwas the commonest organism isolated in 9 (9/20, 45.0%),Streptococcus faecalisin 4 (20.0%), andStaphylococcus aureusin 3 (15%), while bothProteus spp.andKlebsiella spp.were isolated in 2 children (10.0%) each.Escherichia coliwas also found in the 2 children without CP. All the organisms were resistant to cotrimoxazole, nalidixic acid, nitrofurantoin, and amoxiclav, while they were 100% sensitive to ceftriaxone and the quinolones. In a univariate regression analysis, only moderate to severe gross motor dysfunction predicted the risk of UTI (, 95% CI, 2.27–1324.00, value 0.014).Conclusion. Efforts should be put in place to aid mobility among CP children in order to reduce the risk of UTI.


2021 ◽  
Author(s):  
◽  
Gerald Turyatunga

Background: Urinary tract infection (UTI) is defined as the presence of microbial pathogens within the urinary tract. It is primarily caused by Escherichia coli (E.coli), accounting for 75% of all bacterial UTI cases. Bacteria such Klebsiella pneumonia, Proteus mirabilis, Staphylococcus aureus, Pseudomonas aeruginosa, and Enterococcus faecalis have also been reported as causative agents. The study aimed to determine the antibiotic susceptibility patterns of Uropathogenic bacteria in urine samples of patients with suspected UTI in Kam Medical and the diagnostic Centre.  Methodology: This was a cross-sectional study where 120 urinary samples from Kam Medical and Diagnostic Centre in 2019. The urine specimens were cultured on CLED (Cysteine Lactose Electrolyte – Deficient) and blood agar media. Kirby-Bauer’s standard disk diffusion method was applied to test the susceptibility of the drug for Mueller-Hinton culture agar plates. Results: All 120 patients suspected of UTI had bacterial pathogen causing UTI. Among the urinary pathogens, Escherichia coli was the most common in 85/120 (70.8%) of the patients followed by S.aureus 13/120 (10.8 %), Klebsiella spp 4/120 (9.2%), Enterococcus spp with 4/120 3.3 %), Pseudomonas aeruginosa with 4/120 (3.3%) and Proteus with 3/120 (2.5%). According to the results of the antibiogram, the highest resistance was observed for Nalidixic acid (64.2%), Ampicillin (61.7%), and Cotrimoxazole (54.2 %). The highest susceptibility (antibiotic sensitivity) was observed with imipenem (97.5%), Nitrofurantoin (49.2 %), Ciprofloxacin (45.8%), and Clotrimazole (44.2 %) Conclusion and recommendations:  The bacterial pathogens associated with UTIs in this study were E.coli species, Staphylococcus aureus, Klebsiella, Enterococcus species, Pseudomonas species, and Proteus species. E.coli was the most common isolate followed by S.aureus, Klebsiella spp, Pseudomonas spp, and Enterococcus spp, and lastly Proteus spp. The highest levels of bacterial resistance were recorded against first-generation antibiotic drugs. Bacterial isolates in this study were highly susceptible to broad-spectrum, second/ third generation antibiotics drugs.


2016 ◽  
Vol 12 (2) ◽  
pp. 205
Author(s):  
Nova Octavianty Rachman ◽  
Muhamad Darwin Prenggono ◽  
Lia Yuli Budiarti

Abstract: Urinary Tract Infection (UTI) is a general term that indicates the presences or propagation of microorganism in urine. The urinary tract infection is a very common condition that occurs in both women and men of all ages. Diabetes Mellitus (DM) can lead to the development of bacteriuria. Bacterial resistance to antibiotics prolongs the UTI recover. The aim of this research was to find out bacterial sensitivity urinary tract infection in patients diabetes mellitus to selected antibiotic during July-September 2015. It was a descriptional study with cross-sectional. The subject of this research is all patients diabetes mellitus with urinary tract infection in internal medicine wards Ulin General Hospital Banjarmasin. The sampling technique in this research was a total sampling. The sensitivity test to antibiotic test in the research used Kirby Bauer method and analyzed according to CLSI 2013 standard.This type of bacteria found in this research are Escherichia coli, Pseudomonas aerugenosa, Staphylococcus epidermidis, and Staphylococcus aureus. The sensitivity test result the percentage type of bacteria are sensitive to ceftriaxone 73%, levofloxaxin 84,6%, and gentamicin 73%. The conclution is that most sensitive antibiotic is levofloxaxin (84,6%) Keywords: diabetes mellitus (DM), urinary tract infection (UTI), ceftriaxone, levofloxaxin, gentamicin. Abstrak: Infeksi Saluran Kemih (ISK) didefinisikan sebagai adanya infeksi bakteri dalam urin yang ditandai dengan bakteriuria bermakna. Infeksi saluran kemih merupakan kondisi yang sangat umum terjadi baik pada wanita maupun pria pada semua usia. Diabetes Melitus (DM) dapat menyebabkan perkembangan bakteriuria. Resistensi bakteri terhadap antibiotik menyebabkan lamanya penyembuhan dari ISK. Penelitian ini bertujuan mengetahui sensitivitas bakteri penyebab ISK pada pasien DM terhadap antibiotik terpilih periode Juli-September 2015. Penelitian ini merupakan penelitian deskriptif dengan pendekatan Cross Sectional. Subjek penelitian ini adalah seluruh pasien DM dengan ISK Rawat Inap di Bangsal Penyakit Dalam RSUD Ulin Banjarmasin. Teknik pengambilan sampel pada penelitian ini adalah Total Sampling. Uji sensitivitas bakteriuria terhadap antibiotik uji pada penelitian ini menggunakan metode Kirby-Bauer dan dianalisis secara deskriptif sesuai dengan standar CLSI 2013. Jenis bakteri yang ditemukan pada penelitian ini adalah Escherichia coli, Pseudomonas aerugenosa, Staphylococcus epidermidis, Staphylococcus aureus. Hasil uji sensitivitas menunjukkan bahwa presentase jenis bakteri yang sensitif terhadap Seftriakson 73%, Levofloksasin 84,6%, dan Gentamisin 73%. Persentase isolat bakteri yang resisten terhadap Seftriakson 15,3%, Levofloksasin 3,8%, dan Gentamisin 3,8%. Kesimpulan antibiotik yang paling sensitif terhadap bakteri penyebab ISK pada penilitian ini adalah Levofloksasin (84,6%). Kata-Kata kunci: diabetes melitus (DM), infeksi saluran kemih (ISK), seftriaxon, levofloksasin, gentamisin


Antibiotics ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1525
Author(s):  
Fábio M. Carvalho ◽  
Filipe J. M. Mergulhão ◽  
Luciana C. Gomes

The low efficacy of conventional treatments and the interest in finding natural-based approaches to counteract biofilm development on urinary tract devices have promoted the research on probiotics. This work evaluated the ability of two probiotic strains, Lactobacillus plantarum and Lactobacillus rhamnosus, in displacing pre-formed biofilms of Escherichia coli and Staphylococcus aureus from medical-grade silicone. Single-species biofilms of 24 h were placed in contact with each probiotic suspension for 6 h and 24 h, and the reductions in biofilm cell culturability and total biomass were monitored by counting colony-forming units and crystal violet assay, respectively. Both probiotics significantly reduced the culturability of E. coli and S. aureus biofilms, mainly after 24 h of exposure, with reduction percentages of 70% and 77% for L. plantarum and 76% and 63% for L. rhamnosus, respectively. Additionally, the amount of E. coli biofilm determined by CV staining was maintained approximately constant after 6 h of probiotic contact and significantly reduced up to 67% after 24 h. For S. aureus, only L. rhamnosus caused a significant effect on biofilm amount after 6 h of treatment. Hence, this study demonstrated the potential of lactobacilli to control the development of pre-established uropathogenic biofilms.


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