scholarly journals DETEKSI FENOTIPIK Methicillin Resistant Staphylococcus aureus (MRSA) PADA SAMPEL MAKANAN DI SIDOARJO

2019 ◽  
Vol 7 (1) ◽  
pp. 55-65
Author(s):  
Yulianto Ade Prasetya
Keyword(s):  
Clinical Laboratory ◽  
Bacterial Species ◽  
Antibiotic Sensitivity ◽  
Food Samples ◽  
Selective Medium ◽  
Beta Lactam ◽  
Biochemical Tests ◽  
Methicillin Resistant ◽  
Staphyloccocus Aureus ◽  
Fried Foods

Methicillin-resistant Staphyloccocus aureus (MRSA) is an isolate that is resistant to the antibiotic methicillin and beta lactam group. The incidence of MRSA associated with nosocomial infections in various parts of the world is very high, but research on its spread in community infections is rarely reported. This study aims to detect the presence of phenotypic MRSA in food samples in Sidoarjo. The food samples (cilok, fried foods and tempura) collected were then weighed, diluted, and cultured in a selective medium and differential namely Manitol Salt agar. The yellow-colored colonies were then continued with microscopic testing and biochemical tests to distinguish between Staphylococcus species. Thirty eight collected Staphyloccus aureus isolates were then screened using Oxacillin 1 µg and there were eight (8) isolates that were positive for MRSA according to the criteria of the Clinical Laboratory Standart Institutre (CLSI). Eight of the isolates were tested for antibiotic sensitivity with the Kirby-Bauer method with Chloramphenicol 30 µg and Cotrimoxazole 25 µg. Eight MRSA (21%) isolates were resistant to Chloramphenicol and only four isolates were resistant to Cotrimoxazole. The presence of MRSA isolates in community infections needs to be watched out for considering these genes can be transmitted and spread between bacterial species

scholarly journals Isolation, Identification of Bacterial Species Causing Chronic suppurative Otitis Media and Detection Some of Their Virulence Factors

2019 ◽  
Vol 24 (7) ◽  
pp. 45
Author(s):  
Yumna Shaker Mahmood1 ◽  
Suha Maher Abed1 ◽  
Amar Mohammed Alwan2
Keyword(s):  
Otitis Media ◽  
Virulence Factors ◽  
Bacterial Species ◽  
Age Groups ◽  
Antibiotic Sensitivity ◽  
Chronic Suppurative Otitis Media ◽  
Biochemical Tests ◽  
Suppurative Otitis Media ◽  
Antibiotic Sensitivity Test ◽  
Almost All

The study is conducted to diagnose the aerobic bacterial species causing chronic suppurative otitis media (CSOM), reveal the antibiotic susceptibility pattern and detect some of their virulence factors. Samples were collected during the period from June till December 2018.  From a total of eighty-two patients admitted to Samarra Hospital and outpatient clinics of both genders with different age groups, 82 bacterial culture are recovered using a cotton swab. Identification of bacterial isolates is performed depending on micro and macroscopic cultural characteristics and biochemical tests. Results of the current work show that the highest infection rates are at the age groups >1 to 5 and 11 to 20 years by (20%). Among eight bacterial species isolated in the current study (S. aureus, P. aeruginosa, K.pneumonia, S.epidermidis, E.coli, P.vulgaris, C. freundii, E. Cloacae), S. aureus had scored the highest rate (41%) of the total infections while the lowest rate was scored by E.Cloacae(1%). The antibiotic sensitivity test suggests that almost all isolates were sensitive to ciprofloxacin and meropenem (96% and 94% respectively) while they were resistant to Cefixime. The ability of bacteria is isolated from CSOM to produce biofilm and some virulence factors (gelatinase, hemolysin, DNase, urease) are investigated the virulence factor results revealed that. S. aureus, P.aeruginosa, K. pneumonia had the ability to produce biofilm and S. aureus, P. aeruginosa  have the ability the highest production for the majority of virulence factors.   http://dx.doi.org/10.25130/tjps.24.2019.128

scholarly journals First Report of Burkholderia glumae Causing Bacterial Panicle Blight on Rice in Ecuador

Plant Disease ◽  
2014 ◽  
Vol 98 (7) ◽  
pp. 988-988 ◽  
Author(s):  
C. Riera-Ruiz ◽  
J. Vargas ◽  
C. Cedeño ◽  
P. Quirola ◽  
M. Escobar ◽  
...  
Keyword(s):  
Uv Light ◽  
Oryza Sativa L ◽  
Bacterial Species ◽  
Methyl Violet ◽  
Selective Medium ◽  
Phenol Red ◽  
Biochemical Tests ◽  
Burkholderia Glumae ◽  
First Report ◽  
Panicle Blight

Rice (Oryza sativa L.) is one of the leading crops and the basis of most diets in Ecuador and other countries. Diseases such as bacterial panicle blight (BPB), also known as seedling rot or grain rot, have the potential to threaten rice production worldwide. Burkholderia glumae, a causal agent of BPB, has severely affected the rice industry in many countries of Africa, Asia, and the Americas (1,2,4), but no report of this bacteria in Ecuador can be found in the literature. Rice plantations showing BPB-like symptoms including upright panicles with stained and vain grains were spotted in Palestina city, one of Ecuador's most extensive rice areas, in July 2013, but similar symptoms have been observed in the region since early 2012. Six symptomatic plants from two different groves were collected. Samples were plated on the semi-selective medium S-PG (KH2PO4 1.3 g, Na2HPO4 1.2 g, (NH4)2SO4 5 g, MgSO4·7H2O 0.25 g, Na2MoO4·2H2O 24 mg, EDTA-Fe 10 mg, L-cystine 10 μg, D-sorbitol 10 g, pheneticillin potassium 50 mg, ampicillin sodium 10 mg, cetrimide 10 mg, methyl violet 1 mg, phenol red 20 mg, agar 15 g/liter distilled water) and axenic colonies were transferred to potato dextrose agar (PDA) to test for fluorescence (3). Colonies of the potential pathogen were 1 mm, circular, entire margin, with a smooth and shiny surface. When cultured in PDA, isolates showed a moist texture, dull yellow color, and displayed fluorescence with exposure to UV light. Cells were bacterial gram-negative rods of 1 to 2 × 0.5 μm. Twelve presumptive isolates were submitted to biochemical tests (API 20NE). The biochemical profile (APIWEB) showed that all the isolates belonged to the Burkholderia genus with a 99.9% similarity. To determine the bacterial species, colonies were submitted to ELISA tests using specific antibodies for B. glumae from Agdia, Inc. The two isolates that were positive for B. glumae were sequenced using a part of the 16s rDNA amplified by the primers 536F: 5′-GTGCCAGCMGCCGCGGTAATAC-3′ and 1492R: 5′-GGTTACCTTGTTACGACTT-3′. The obtained sequences (deposited into GenBank as KF601202) shared 100% similarity with several B. glumae strains after a BLAST query. Isolates were then diluted to 108 UFC/ml and used to inoculate healthy rice plants. Inoculated plants produced BPB-like symptoms including upright panicles with stained vain grains and the bacterium was re-isolated from symptomatic plants. To the best of our knowledge, this is the first report of B. glumae in Ecuador. Further research is ongoing to identify and determine the pathogenicity of the remaining Burkholderia strains that tested negative for B. glumae. References: (1) J. Luo et al. Plant Dis. 91:1363, 2007. (2) R. Nandakumar et al. Plant Dis. 93:896, 2009. (3) T. Urakami et al. Int. J. Syst. Bacteriol. 44:235, 1994. (4) X.-G. Zhou. Plant Dis. 98:566, 2014.

scholarly journals Evaluation of a new selective medium for methicillin-resistant Staphyloccocus aureus

2001 ◽  
Vol 50 (5) ◽  
pp. 476-479 ◽  
Author(s):  
P.M. ZADIK ◽  
S. DAVIES ◽  
S. WHITTAKER ◽  
C. MASON
Keyword(s):  
Selective Medium ◽  
Methicillin Resistant ◽  
Staphyloccocus Aureus

An improved selective and diagnostic medium for the isolation and enumeration of Bacillus cereus in foods

1980 ◽  
Vol 26 (7) ◽  
pp. 753-759 ◽  
Author(s):  
R. Holbrook ◽  
Judith M. Anderson
Keyword(s):  
Bacillus Cereus ◽  
Egg Yolk ◽  
Bromothymol Blue ◽  
Food Samples ◽  
Selective Medium ◽  
Confirmatory Test ◽  
Staining Procedure ◽  
Complete Agreement ◽  
Phenol Red ◽  
Biochemical Tests

The use and performance of an improved diagnostic and selective medium, PEMBA (polymyxin pyruvate egg yolk mannitol bromothymol blue agar), for the detection of Bacillus cereus in foods is described. The distinct colonial appearance of B. cereus on PEMBA permitted the recognition of both strains: those that do precipitate egg yolk and those that do not react with egg yolk. A staining procedure, used to demonstrate microscopically both the presence of lipid globules in vegetative cells and spore morphology of isolates, proved a rapid and reliable confirmatory test which gave complete agreement with a battery of biochemical tests used for this purpose. The quantitative recovery of B. cereus on PEMBA from 143 food samples was not significantly different from counts on KG (Kim and Goepfert), MYP (mannitol egg yolk phenol red), and McClung's media, and the selectivity of PEMBA was generally superior.

P789 Bacteriological profile of material collected from perianal lesions from patients with Crohn’s disease in the tertiary IBD centre in southern Poland

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S622-S622
Author(s):  
R Filip ◽  
J Gruszecka
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Bacterial Species ◽  
Antibiotic Sensitivity ◽  
Beta Lactam ◽  
Anal Abscess ◽  
Extended Spectrum Beta Lactamase

Abstract Background Both anal abscesses and fistulas are potential complications in the course of Crohn’s disease. Chronic immunosuppression, loose stools and poor wound healing in this population pose a challenge to the treatment of perianal diseases. The purpose of our hospital research was to determine the dominant bacterial species found in perianal abscesses and fistula discharge, resulting in anal abscess and/or fistula outflow in patients with Crohn’s disease hospitalised in a tertiary IBD centre in Poland. Methods The results of tests of patients admitted and subsequently conservatively treated or treated for anal fistula or abscess in the period from January 1, 2017 to June 30, 2019 were evaluated. Information obtained from medical records included clinical information, results of laboratory tests and results of swab cultures of perianal lesions for culturing and antibiotic sensitivity of microorganisms isolated. Material was collected from patients in accordance with applicable procedures. Results In the analysed period, a total of 306 swabs from perianal lesions from 44 patients with the diagnosis of Crohn’s Disease were collected, of which microbial growth was observed in 38 patients. Escherichia coli (45.5%, p < 0.001) was the most frequently isolated pathogen, Staphylococcus aureus was the second most common pathogen (15.9%, p < 0.001). In vitro sensitivity tests showed that Escherichia coli (ESBL-extended-spectrum-beta-lactamase producing strain with a broader substrate spectrum) was found in 4 samples, Staphylococcus aureus (MRSA- strain resistant to all beta-lactam antibiotics: penicillins with inhibitors, cephalosporins, monobactams, carbapenems except for ceftaroline). The analysis of the results obtained did not show seasonal variability in the number of positive microbiological tests found on cultures of perianal lesions. Conclusion A retrospective analysis of microbiological results of anal abscesses and fistula outflow was performed in patients with Crohn’s Disease with perianal changesi. Escherichia coli was the predominant pathogen isolated. The second most common organism was Staphylococcus, isolated from 9 patients. Staphylococci were not found in samples from other patients with IBD. The evaluation of the obtained results shows that positive results of cultures of swabs from lesions in the anal area were found more often in samples taken from men (25 samples–65.8%) than from women (13 samples–34.2%).

scholarly journals Antibiotic sensitivity on pathogenic bacteria causing bacterial vaginosis

2021 ◽  
Vol 29 (1) ◽  
pp. 18
Author(s):  
Shiwi Linggarjati ◽  
Dita Diana Parti ◽  
Elly Nurus Sakinah
Keyword(s):  
Bacterial Vaginosis ◽  
Pathogenic Bacteria ◽  
Bacterial Resistance ◽  
Clinical Laboratory ◽  
Antibiotic Sensitivity ◽  
High Sensitivity ◽  
Primary Data ◽  
Beta Lactamase ◽  
Beta Lactam ◽  
E Coli

Objectives: To identify the sensitivity of antibiotics to pathogenic bacteria that cause Bacterial Vaginosis (BV).Materials and Methods: This type of research was an observational study with a sample of six specimens. The data were taken using primary data from patients who were swabbed in the vagina and then diagnosed BV with amsel criteria on vaginal secretion specimens carried out at Tanggul health center on January 23-February 23, 2020. The specimens were sent to Parahita Clinical Laboratory for bacterial identification and adjusted for sensitivity with CLSI using vitek 2 compact tool.Results: The results of this study identified the bacteria that caused bacterial vaginosis, the E. coli and K. pneumoniae with one sample of suspected ESBL. ESBL is a beta lactamase enzyme produced by bacteria and can induce bacterial resistance to penicillin, cephalosporin generation 1, 2, and 3. The types of bacteria found were E. coli and K. pneumoniae with high sensitivity antibiotics tested including piperacillin/tazobactam, ceftazidime, cefepime, ertapenem, meropenem, amikacin, gentamicin, tigecycline, and nitrofurantoin. Antibiotics with high levels of resistance tested against these bacteria included: ampicillin, amoxicillin, and ampicillin/sulbactam due to the mechanism of beta-lactam antibiotic resistance in the production of beta lactamase from bacteria.Conclusion: The type of bacteria found was E. coli and K. pneumoniae with high resistance levels in beta lactam antibiotics. 

scholarly journals Polymerase Chain Reaction: An Innovative Tool in Periodontal Diagnosis

2013 ◽  
Vol 4 (1) ◽  
pp. 60-66
Author(s):  
Suvarna H Patil ◽  
Kishore G Bhat ◽  
Paresh S Lotlekar ◽  
Laxmi V Hombal
Keyword(s):  
Polymerase Chain Reaction ◽  
Bacterial Species ◽  
Antibiotic Sensitivity ◽  
Periodontal Pathogen ◽  
Current Status ◽  
Clinical Samples ◽  
Chain Reaction ◽  
Biochemical Tests ◽  
Innovative Tool ◽  
Polymerase Chain

ABSTRACT Bacterial species colonizing the surfaces of the human oral cavity play an important role in oral health and disease and thus an accurate means of identification is crucial. Traditionally, identification has been based on microscopy, biochemical tests, immunofluorescence staining and antibiotic sensitivity. However, these tests are labor-intensive and costly, providing sometimes inconsistent results that make identification rather tentative. Recently, molecular DNA-based techniques have been used to identify bacteria directly from clinical samples. Development of a microbiological diagnostic kit using this technology therefore requires the ability to extract the bacterial DNA from the plaque sample and amplify the specific DNA sequence of the target periodontal pathogen. Polymerase chain reaction has emerged as the most powerful tool for the amplification of the genes and their RNA transcripts. The focus of this review is to describe the current status of the DNA-based method PCR which has become a standard diagnostic and research tool in dentistry. How to cite this article Patil SH, Bhat KG, Lotlekar PS, Hombal LV. Polymerase Chain Reaction: An Innovative Tool in Periodontal Diagnosis. World J Dent 2013;4(1):60-66.

scholarly journals Antibiotic Susceptibility Profile of Bacteria Isolated from Kenyan Bank Notes Circulating in Nyeri Town

2019 ◽  
pp. 1-12 ◽  
Author(s):  
S. G. Muguongo ◽  
A. K. Nyamache ◽  
J. M. Maingi
Keyword(s):  
Antibiotic Susceptibility ◽  
Burkholderia Cepacia ◽  
Pathogenic Bacteria ◽  
Bacterial Species ◽  
Klebsiella Oxytoca ◽  
Antibiotic Sensitivity ◽  
Bacterial Isolates ◽  
Biochemical Tests ◽  
Cross Sectional ◽  
Bank Note

Aims: The aim of this study was to characterize bacteria isolated from circulating Kenyan banknotes and also antibiotic susceptibility profiles within Nyeri County. Study Design:  This was a cross-sectional study and simple random sampling was used to collect 25 of each paper currency denomination. Place and Duration of Study: Samples analyses were done at Outspan Teaching and Referral Hospital (OTRH) laboratory, between March, 2019 and April, 2019. Methodology: Total of 125 currencies of five different denominations were collected from different marketing sources such as Butcheries, Restaurants, Health facilities, Mpesa outlets and Transport Saccos and dropped in sterile bags. The bacterial isolates were characterized on the basis of their morphology, staining and biochemical tests. Antibiotic sensitivity tests were done by Kirby Bauer disc diffusion technique. Results: Total of 19 different bacterial species were isolated from five Kenyan Bank note currencies. Of these, 37 (52.2%) was Staphylococcus aureus followed by Staphylococcus sciuri ssp.lentus 7 (9.9%), Staphylococcus gallinarum 2 (2.8%), Staphylococcus intermedius 6 (8.5%), Micrococcus sp. 1 (1.4%), Staphylococcus schleiferi ssp.coagulans 2 (2.8%), Staphylococcus sciuri ssp.rodentium 1 (1.4%), Kluyvera ascorbata 1 (1.4%), Proteus penneri 1 (1.4%), Aeromonas media 3 (4.2%), Burkholderia cepacia ssp.komplex (1.4%), Aeromonas enteropelogenes 1 (1.4%), Enterobacter cloacae 1 (1.4%), Klebsiella oxytoca 2 (2.8%), Leclercia adecarboxylata 1 (1.4%), Raoultella ornithinolytica 1 (1.4%), Vibrio metschnikovii  1 (1.4%), Myroides odoratus 1 (1.4%) and Yersinia pestis 1 (1.4%). Overall gram positive and gram negative bacterial isolates exhibited resistance to vancomycin, clindamycin and amoxycilin with percentages 40 (71%), 28 (50%), and 37 (66%) and 9 (64%), 8 (57%) and 6 (43%)  respectively. Conclusion: This study revealed that Kenyan banknote currencies circulating in Nyeri County were contaminated with different pathogenic and potential pathogenic bacteria including multi drug resistant strains. Hence, great care must be taken while handling money during the preparation and handling of food to avoid cross contamination.

scholarly journals Experimental evolution and genome data analysis ofCandida albicansreveals cryptic bacteria in single yeast colonies

2017 ◽  
Author(s):  
Danielle do Carmo Ferreira Bruno ◽  
Thais Fernanda Bartelli ◽  
Camila Ronqui Rodrigues ◽  
Marcelo R. S. Briones
Keyword(s):  
Experimental Evolution ◽  
Clinical Laboratory ◽  
Bacterial Species ◽  
Selective Medium ◽  
Patient Treatment ◽  
Rrna Gene ◽  
Coagulase Negative Staphylococci ◽  
Continuous Growth ◽  
Sequencing Project ◽  
Genome Data Analysis

ABSTRACTAt least 25% of patients with positiveCandida albicansbloodstream infection also have one or more bacterial species associated with the infection. These polymicrobial infections are usually caused by coagulase-negative staphylococci, most commonlyStaphylococcus epidermidisand are associated with significantly worse clinical outcomes as compared to monomicrobial infections. Here we show bacteria are present inC. albicanscultures started from isolated single colony platting. These co-evolving bacteria can only be detected by the use of specific selective medium and/or long periods of incubation from 8 days up to 48 weeks (approximately 4,000 generations), used in experimental evolution methods. The detection of these co-evolving bacteria is highly dependent on the type of enzyme used for 16S rRNA gene amplification and is often missed in clinical laboratory analysis because of short incubation periods, media and temperatures, used in mycology clinical routine, that are unfavorable for bacterial growth. In this study, we identified bacteria in cultures of differentC. albicansisolates from long term, continuous growth by molecular analysis and microscopy. Also, we confirmed the presence of these co-evolving bacteria by identification ofS. epidermidisgenome segments in sequencing reads of theC. albicansreference strain SC5314 genome sequencing project raw data deposited in GenBank. This result rules out the possibility of laboratory specific contamination. Also, we show that the presence of associated bacteria correlates with antifungal resistance alterations observed in growth under hypoxia. Our findings show the intense interaction betweenC. albicansyeasts and bacteria and have direct implications in yeast clinical procedures, especially concerning patient treatment.

The comparative study among the MRSAcin, Nisin A and vancomycin, on biofilm formation by Methicillin resistance Staphylococcus aureus isolated from food sources.

2019 ◽  
Vol 9 (o3) ◽  
Author(s):  
¹Hind H. Muunim ◽  
Muna T Al-Mossawei ◽  
Mais Emad Ahmed
Keyword(s):  
Biofilm Formation ◽  
Methicillin Resistance ◽  
Microbial Control ◽  
Antibiotic Sensitivity ◽  
Raw Milk ◽  
Sensitivity Test ◽  
Food Sources ◽  
Resistant Bacteria ◽  
Biochemical Tests ◽  
Food Preservatives

Biofilms formation by pathogens microbial Control considered important in medical research because it is the hazarded virulence factor leading to becoming difficult to treat because of its high resistance to antimicrobials. Glycopeptide antibiotic a (Vancomycin) and the commercial bacteriocin (Nisin A) were used to comparative with purification bacteriocin (MRSAcin) against MRSA biofilm. One hundred food samples were collected from Baghdad markets from July 2016 to September 2016, including (cheese, yogurt, raw milk, fried meat, grilled meat, and beef burger). All samples were cultures; S. aureus was confirmation by macroscopic culture and microscopic examination, in addition to biochemical tests. Methicillin resistance S. asureus (MRSA) were identification by antibiotic sensitivity test (AST), Vitek 2 system. The result shown the 60(60%) isolate were identified as S. aureus and 45(75%) gave positive result as MRSA isolate, M13 isolate was chosen as MRSA isolates highest biofilm formation for treatment with MRSAcin, Nisin A(bacteriocin) and Vancomycin (antibiotic) to compared the more antimicrobial have bacteriocidal effect. The sensitivity test uses to determine the effect of MRSAcin, Nisin A, and Vancomycin MIC on MRSA planktonic cell by (WDA). The new study shows the impacts of new kind Pure Bacteriocins (MRSAcin) from methicillin-resistant S. aureus (MRSA) highly effects then (Vancomycin and Nisin A) at different concentration. In a current study aimed to suggest new Bacteriocin is potent highly for the treatment of resistant bacteria biofilm infections in food preservatives

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