scholarly journals Bacteriological Stydy of pseudomonas aeruginosa Isolate from some pathogenic cases at diwaniya teaching hospital and hospital for obstetrics and pediatrics and its sensitivity to some antibiotics

2009 ◽  
Vol 33 (2) ◽  
pp. 32-36
Author(s):  
AL-abedey S. J.m
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Teaching Hospital ◽  
Secondary Infection ◽  
High Sensitivity ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Cultural Characteristic ◽  
Disc Diffusion Method ◽  
Biochemical Testing

The aim of this study was to determine the important role of Pseudomonas aeruginosa in secondary infection of hospitalized patients, and test the sensitivity of this bacteria to some antibiotics were used in treatment of its infection .90 samples were collected from different cases in Diwanya teaching hospital ,maternity & children hospital .The results show isolation of 29 isolates 0f Pseudomonas aeruginosa (32.2%) .Microscopic examination,cultural characteristic on selective and differential media and biochemical testing were used in the diagnosis of this bacteria.The sensitivity test of this bacteria to some antibiotics was done by using disc diffusion method .Allisolates were resistant to ampicillin (100%),while it gave high sensitivity to ciprofloxacin(2.3%).

scholarly journals IN VITRO ASSESSMENT OF ANTIBACTERIAL ACTIVITY OF STEM AND ROOT OF RAUWOLFIA SERPENTINA AGAINST DIFFERENT BACTERIA

2021 ◽  
Vol 12 (6) ◽  
pp. 87-90
Author(s):  
Virendra Vaishnav ◽  
Debasish Sahoo ◽  
Tanushree Chatterjee
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Antibacterial Activity ◽  
Antimicrobial Agents ◽  
Development Program ◽  
Positive Control ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Rauwolfia Serpentina

Medicinal Plants are the good source of natural antimicrobial agents. The main aim of present study was to evaluate the antibacterial activity of stem and root of Rauwolfia serpentina against six microorganism, Powdered stem and root of plant were extracted with acetone, chloroform and methanol and streptomycin used as positive control. The antibacterial activity of Rauwolfia serpentine was detected by using disc diffusion method and agar well diffusion method on the following bacteria- Bacillus cereus, Staphylococcus aureus, Bacillus fusiformis, Escherichia coli, Pseudomonas aeruginosa and P. luminescens. The experiment reported that R. serpentina Root methanol extract shown 14.86 ± 1.11 highest antibacterial activity against Pseudomonas aeruginosa through well diffusion method. Whereas root chloroform recorded 13.46 ± 1.28 highest antibacterial activity against E. coli through disc diffusion method, maximum zone of inhibition 22.66±0.52 mm was found for the positive control, streptomycin through well diffusion method. Further studies should be undertaken to reveal the correct mechanism of action of antimicrobial effect to identify the active ingredients which can be used in drug development program.

Antimicrobial susceptibility of Enterococcus spp. Isolated from different clinical sources in Kirkuk provency

2018 ◽  
pp. 97
Author(s):  
Hajir Ali Shareef ◽  
Shara Najmalddin Abdullah
Keyword(s):  
High Sensitivity ◽  
Diffusion Method ◽  
Multiple Resistance ◽  
Beta Lactamase ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Enterococcus Spp ◽  
New Antibiotics ◽  
Vitek 2 ◽  
High Level

        One of the most important problems confronts hospitals is the strains emergence  of Enterococcus spp. with multiple resistance to antibiotics, which propel researchers to modify or produce new antibiotics or combination between two antibiotics so that to be more effective against Enterococcus . This study was aimed to susceptibility some of local Enterococcus spp. Isolates with of 21 antibiotic using  disc diffusion method. The results showed absolute resistant 100% toward (Cephalexin , Gentamycin , Amikacin ,Erythromycin and Nalidixic acid), while showed a high sensitivity toward (Vancomycin and Impenem ) at percentage of 92.3% for each . Also highly inhibitory activity were observed by using penicillins antibiotics groups against most Enterococcus  isolates . which contribute to that non of the isolates showed it is ability to produce beta – lactamase enzymes by iodometric tube method. Also susceptibility to some new and synergetic antibiotic like Gentamicin High level(synergy), Streptomycin High level (synergy), Linezolid, Tigecycline, Levofloxacin, Quinupristin /Dalfopristin was conducted by Vitek-2 system. the results showed the absolute sensitivity (100%) of isolates toward ( Linezolid and Tigecycline).  All isolates showed multiple –resistant prescription to antibiotics , the number of antibiotics that every isolates resisted range between 6-12 antibiotic .

scholarly journals Antimicrobial Properties of 6-Bromoeugenol and Eugenol

2016 ◽  
Vol 53 ◽  
pp. 57-64
Author(s):  
Radia Mahboub ◽  
Faiza Memmou
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Inhibitory Concentration ◽  
Antimicrobial Properties ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Bacterial Strains ◽  
Disc Diffusion Method ◽  
Modest Activity

We have studied the antimicrobial properties of 6-bromoeugenol and eugenol by three strains:Pseudomonas aeruginosa(S1),Escherichia coli(S2) andStaphylococcus aureus(S3). We have determined the minimum inhibitory concentration (MIC) for a range of concentrations using the disc diffusion method. We note that all samples present an antimicrobial activity toward the tested bacterial strains at different concentrations (1, 0.5 and 0.25 mg/ml). The 6-bromoeugenol gives modest activity with (S1) and (S3). Eugenol reacts positively with thePseudomonas aeruginosa(S1) at all concentrations and with theEscherichiacoli(S2) at 0.5 mg/ml. We remark that thePseudomonas aeruginosa(S1) is the more sensitive strain thanEscherichiacoli(S2) andStaphylococcus aureus(S3). We have estimated the activity coefficient which has confirmed the antimicrobial activity of the different samples. So, 6-bromoeugenol has shown his efficiency as antimicrobial agent.

scholarly journals UJI DAYA HAMBAT EKSTRAK ETANOL DAUN PANGI (Pangium edule Reinw. ex Blume) TERHADAP BAKTERI Staphylococcus aureus, Escherichia coli DAN Pseudomonas aeruginosa

PHARMACON ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 275
Author(s):  
Glorya Sakul ◽  
Herny E. I. Simbala ◽  
Gerald Rundengan
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Ethanol Extract ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
North Sulawesi ◽  
Staphyloccocus Aureus ◽  
Inhibitory Strength

ABSTRACTOne of the natural ingredients that are often used as a medicinal plants is Pangi (Pangium edule Reinw. Ex Blume) plant. The part of pangi that are often used are leaves, which is known have antibacterial activity. North Sulawesi people empirically use this plant as food and to cure various diseases such as treating itching on the skin caused by bacteria found on the skin. The aim of this research was to determine and study the strength of antibacterial inhibition based on the category of inhibition by Davis and Stout of ethanol extract from pangi (Pangium edule Reinw. ex Blume) leaf performed by disc diffusion Kirby and Bauer method againts Staphylococcus aureus, Escherichia coli and Pseudomonos aeruginosa bacterias. The result showed that the ethanol extract from pangi (Pangium edule Reinw. Ex Blume) leaf has medium inhibitory strength at concentrations of 4%, 6% and 8%.Keywords: Pangium edule Reinw. ex Blume leaf, Antibacterial, Disc diffusion method  ABSTRAKSalah satu bahan alam yang sering digunakan sebagai tumbuhan obat adalah tumbuhan pangi (Pangium edule Reinw. ex Blume). Bagian dari tumbuhan pangi yang sering digunakan adalah bagian daun, dimana telah diketahui mempunyai aktivitas antibakteri. Masyarakat Sulawesi Utara secara empiris menggunakan tumbuhan ini sebagai bahan makanan serta untuk menyembuhkan berbagai penyakit seperti mengobati penyakit gatal-gatal pada kulit yang disebabkan oleh bakteri yang terdapat pada kulit. Penelitian ini bertujuan untuk mengetahui kekuatan daya hambat antibakteri berdasarkan kategori penggolongan daya hambat oleh Davis dan Stout dari ekstrak etanol daun Pangium edule Reinw. ex. Blume dengan metode difusi agar (difusi disk Kirby dan Bauer) terhadap bakteri uji Staphyloccocus aureus, Escherichia coli dan Pseudomonas aeruginosa. Hasil penelitian didapati bahwa ekstrak etanol daun Pangium edule Reinw ex. Blume mempunyai kekuatan daya hambat kategori sedang pada konsentrasi 4%, 6% dan 8%.Kata kunci: Daun Pangium edule Reinw. ex Blume, Antibakteri, Metode difusi disk

scholarly journals Interpreting Susceptibility Testing of Carbapenem Against Pseudomonas aeruginosa

2016 ◽  
Vol 4 (1) ◽  
pp. 1-8
Author(s):  
Maite Micaelo ◽  
Florence Brossier ◽  
Nicolas Brechot ◽  
Charles Edouard Luyt ◽  
Qin Lu ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Susceptibility Testing ◽  
Drug Susceptibility ◽  
Drug Susceptibility Testing ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Limited Data ◽  
Disc Diffusion Method ◽  
New Guidelines

Objectives: Carbapenems are among the most powerful anti pseudomonal agents. Since meropenem and doripenem were marketed, there are limited data regarding drug susceptibility testing by routine methods (disc diffusion and Etest) for them. The aim of our study was to compare in vitro activity of the imipenem, meropenem and doripenem against Pseudomonas aeruginosa. Methods: Three hundred and eleven P. aeruginosa strains isolated from respiratory specimens in 170 patients who developed ventilator-associated pneumonia in two intensive care units were collected over a period of 31 months. The susceptibility of all of these isolates to imipenem, meropenem and doripenem were determined by Etest and disc diffusion method. Results: Considering either all of the isolates or only the first isolates recovered per patient (311 and 170 respectively) the susceptibility rate for doripenem was higher than that for meropenem and imipenem. When MICs determined by Etest were converted into interpretative categories (S, I, R) using French (CA-SFM) guidelines, agreement was poor, especially for meropenem and doripenem. The percent of agreement with the disc diffusion method were 90.6% and 89.7% for imipenem, 80.5% and 82.6% for meropenem and 80.5% and 73.3% for doripenem, for the first isolates and all of the isolates, respectively. Errors were mostly minor errors, and the rate of errors was as high as 17.7% and 16.1% for meropenem and 17.7% and 25.7% for doripenem for the first isolates and all of the isolates, respectively Conclusion: The accuracy of disc diffusion using CA-SFM guidelines appears unsatisfactory for all the three carbapenems justifying the adaptation of new guidelines for P. aeruginosa and carbapenems

scholarly journals In silico and In vitro Evaluation of Some Synthesized Quinoline Derivatives into MexB Protein of Pseudomonas aeruginosa

2020 ◽  
Vol 10 (02) ◽  
pp. 195-199
Author(s):  
Abdalkader Saeed Latif ◽  
Majida G. Magtooph ◽  
Alia Essam Mahmood Alubadi
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Inhibitory Concentration ◽  
3D Structure ◽  
Diffusion Method ◽  
Quinoline Derivatives ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Medical City ◽  
Agar Well Diffusion Method

Molecular docking performed to evaluate the effect of five quinoline derivatives on the MexB protein of Pseudomonas aeruginosa as a potential inhibitor by utilizing the 3D structure of each quinoline compounds (C1, C2, C3, C4, and C5), and the crystal structure of the protein, C4 showed the greatest potential with -31.4 kcal/mol binding energy, and the lowest potential was for C1 with (-18.5 kcal/mol) compared with ciprofloxacin. Fifty samples were collected from different sites from patients who are attending to the medical city of Baghdad and private Dhelal Beirut Center, Baghdad, 36 of the samples were diagnosed as P. aeruginosa by routine culture test and confirmed by VITEK2, and those isolates were subjected to the susceptibility test against carbapenems, carbenicillin, levofloxacin, and erythromycin by disc diffusion method. The isolates that showed resistance to all of four antibiotics were based to evaluate the activity of quinoline derivatives by using the agar well diffusion method, where compounds C4 and C5 showed the highest line of activity as the minimum inhibitory concentration (MIC) was 256 μg/mL, meanwhile, C1 showed the lowest activity with MIC of 1,024 μg/mL.

The role of the bla KPC gene in antimicrobial resistance of Klebsiella pneumoniae

2019 ◽  
Author(s):  
Atossa Ghasemnejad ◽  
Monir Doudi ◽  
Nour Amirmozafari
Keyword(s):  
Klebsiella Pneumoniae ◽  
Antimicrobial Susceptibility ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Broth Microdilution ◽  
Disc Diffusion Method ◽  
Biochemical Tests ◽  
Microdilution Method ◽  
Broth Microdilution Method

Background and Objectives: Klebsiella pneumoniae isolates that produce K. pneumoniae carbapenemase (KPC) have be- come a grave concern for the treatment of infections. KPC-producing strains are not only able to hydrolyze carbapenems but are also resistant to a variety of β-lactam and non-β-lactam antibiotics. The present study evaluated the prevalence of bla in K. pneumoniae infections and determined the antimicrobial susceptibility of the isolates. Materials and Methods: The K. pneumoniae isolates were identified by biochemical tests and confirmed by genotyping. The modified Hodge test (MHT) was performed to detect carbapenemases, and antimicrobial susceptibility was determined for all isolates by the disc diffusion method. Also, for MHT-positive isolates, supposed to carbapenemases isolates, broth microdilution method was used to measure the minimum inhibitory concentrations (MICs) of meropenem and colistin. Results: The bla KPC genotypic evaluation revealed that only 5 of 96 isolates carried bla genes. Antimicrobial pattern showed that isolates carrying bla were resistant to cefepime, ticarcillin/tazobactam, and aztreonam discs. Also, results of broth microdilution method showed that KPC-producing K. pneumoniae was resistant to meropenem and colistin, according to the CLSI and EUCAST. Conclusion: In this study nearly half the isolates showed carbapenemase activity as shown by MHT results, but only few of them were carrying bla . Thus bla gene is not the main cause of resistance spread to carbapenems in Isfahan, Iran.

scholarly journals The efficacy of Calendula officinalis tincture as an antibacterial on in vitro Pseudomonas aeruginosa

2002 ◽  
Author(s):  
◽  
Mbuso Mabuza
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Calendula Officinalis ◽  
Disc Diffusion Method ◽  
Mueller Hinton ◽  
Mueller Hinton Agar ◽  
Microbial Study

The aim of this in vitro microbial study was to evaluate the efficacy of Calendula officinalis tincture 60% (v/v) ethanol as an antibacterial on in vitro Pseudomonas aeruginosa. The standardised disc - diffusion method was employed. Seven pairs of Mueller - Hinton agar plates were used.

scholarly journals Gayatri Mantra Chanting Helps Generate Higher Antimicrobial Activity of Yagya’s Smoke

2018 ◽  
Vol 1 (1) ◽  
pp. 09-14 ◽  
Author(s):  
Ruchi Singh ◽  
Sunil Kumar Singh
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Activity ◽  
Inhalation Therapy ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Human Pathogens ◽  
Zone Of Inhibition ◽  
Disc Diffusion Method ◽  
Plant Materials

Yagya (known as a fire-ritual) is an ancient Vedic Indian method of herbal inhalation therapy. It is also described as an excellent mode of environmental purification. Here, a comparative study of antimicrobial activity of smoke extract of Yagya and non-Yagya has been performed. ‘Yagya’ in this text, refers to the burning of wood, specific types of dried medicinal plant materials (hawan samagri) along with ghee with the citation of mantras, whereas the term Non-Yagya implies burning of wood, hawan samagri, along with ghee. In non-Yagya the mantra citation has not been done. An apparatus was designed to simulate the burning process, and the smoke fraction was captured for antimicrobial activity on human pathogens i.e Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Bacillus subtilis, and Salmonella typh. Antimicrobial activity was performed using disc diffusion method. Antimicrobial data revealed that the ‘smoke-extract’ obtained from Yagya experiments with mantra chanting had higher zone of inhibition values compared to that of same experiment conditions except presence of mantra chanting suggesting an important role of the mantra chanting in Yagya for medicinal applications

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