keyword
MENU ▼
Read by QxMD icon Read
search

ecoli

keyword
https://www.readbyqxmd.com/read/27362244/design-and-validation-of-real-time-pcr-quantitative-diagnosis-of-common-leishmania-species-in-iran
#1
Maryam Fekri Soofi Abadi, Shahriar Dabiri, Reza Fotouhi Ardakani, Lina Fani Malaki, Sahar Amirpoor Rostami, Mahsa Ziasistani, Donya Dabiri
OBJECTIVE: Design and validation of Real-time PCR on the protected gene region ITS2 to quantify the parasite load in common leishmania (L) species. MATERIALS AND METHODS: Probe and primer were designed from the ITS2 region between the rRNA genes with minimum gene variation in three common leishmania species followed by a Real-time PCR using the Taq man probe method in the form of absolute quantification. A series of different concentrations of leishmania were analyzed...
July 2016: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/27354206/first-sporadic-case-of-pathogenic-escherichia-coli-infection-in-black-swan-in-china
#2
Lirong Wang, Yongjun Dong, Sanhu Wang, Li Li, Xianghui Kong, Aijun Lv
A strain of bacteria was isolated from the diseased black swan (Cygnus atratus) died from enteritis diarrhea, and designated tentatively as B-1 strain. Morphological and biochemical tests, as well as phylogenetic analysis derived from 16S rRNA and fimC gene sequencing both strongly indicated that B-1 strain is identical to Escherichia coli. Furthermore, the polymerase chain reaction single-strand conformation polymorphism (PCR-SSCP) profile of the isolate was different from that of two reference strains. Antibiotic sensitivity testing of B-1 strain was carried out by the standard Kirby-Bauer disc diffusion method...
September 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/26843427/transcription-profile-of-escherichia-coli-genomic-selex-search-for-regulatory-targets-of-transcription-factors
#3
Akira Ishihama, Tomohiro Shimada, Yukiko Yamazaki
Bacterial genomes are transcribed by DNA-dependent RNA polymerase (RNAP), which achieves gene selectivity through interaction with sigma factors that recognize promoters, and transcription factors (TFs) that control the activity and specificity of RNAP holoenzyme. To understand the molecular mechanisms of transcriptional regulation, the identification of regulatory targets is needed for all these factors. We then performed genomic SELEX screenings of targets under the control of each sigma factor and each TF...
March 18, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/26716323/study-on-the-synthesis-and-characterization-of-nano-silver-loaded-zsm-5-zeolite-for-bacterial-elimination
#4
Le Thi Hoai Nam, Tran Quang Vinh, Nguyen Thi Thanh Loan, Nguyen Thi Nhiem, Nguyen Thi Thu Trang, Nguyen Minh Tan, Jörg Radnik
The synthesis of nano silver coated ZSM-5 zeolite (Ag/ZSM-5) by ion exchange method combined with anaerobic thermal treatment and its bacterial elimination performance were studied. The various Ag content of different samples was analysed by atomic absorption spectroscopy method. The Ag/ZSM-5 sample with 0.251 wt% Ag (denoted as ZAg3) was characterized by using atomic absorption spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and pulsed CO chemisorption methods. The results showed that silver nanoparticles with a small nano-size of 2-3 nm were formed and distributed on the surface of ZSM-5 zeolite with a dispersion value of 59%...
September 2015: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/26198082/streptomycin-affinity-depends-on-13-amino-acids-forming-a-loop-in-homology-modelled-ribosomal-s12-protein-rpsl-gene-of-lysinibacillus-sphaericus-dsls5-associated-with-marine-sponge-tedania-anhelans
#5
Balasubramanian Suriyanarayanan, Praveena Pothuraju Lakshmi, Ramachandran Sarojini Santhosh, Kandasamy Dhevendaran, Balakrishnan Priya, Shivaani Krishna
Streptomycin, an antibiotic used against microbial infections, inhibits the protein synthesis by binding to ribosomal protein S12, encoded by rpsL12 gene, and associated mutations cause streptomycin resistance. A streptomycin resistant, Lysinibacillus sphaericus DSLS5 (MIC >300 µg/mL for streptomycin), was isolated from a marine sponge (Tedania anhelans). The characterisation of rpsL12 gene showed a region having similarity to long terminal repeat sequences of murine lukemia virus which added 13 amino acids for loop formation in RpsL12; in addition, a K56R mutation which corresponds to K43R mutation present in streptomycin-resistant Escherichia coli is also present...
June 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/25829632/comparison-of-essential-oil-composition-and-antimicrobial-activity-of-coriandrum-sativum-l-extracted-by-hydrodistillation-and-microwave-assisted-hydrodistillation
#6
Mohammad Hossein Salehi Sourmaghi, Gita Kiaee, Fereshteh Golfakhrabadi, Hossein Jamalifar, Mahnaz Khanavi
Coriander (Coriandrum sativum L.), is an annual herb in the Apiaceae family which disperses in Mediterranean and Middle Eastern regions. The Coriander essential oil has been used in food products, perfumes, cosmetics and pharmaceutical industries for its flavor and odor. In Iran, fruits of Coriander used in pickle, curry powders, sausages, cakes, pastries, biscuits and buns. The aim of this study was to investigate microwave radiation effects on quality, quantity and antimicrobial activity of essential oil of Coriander fruits...
April 2015: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/25218891/neutrophil-extracellular-traps-formation-by-bacteria-causing-endometritis-in-the-mare
#7
M R Rebordão, C Carneiro, G Alexandre-Pires, P Brito, C Pereira, T Nunes, A Galvão, A Leitão, C Vilela, G Ferreira-Dias
Besides the classical functions, neutrophils (PMNs) are able to release DNA in response to infectious stimuli, forming neutrophil extracellular traps (NETs) and killing pathogens. The pathogenesis of endometritis in the mare is not completely understood. The aim was to evaluate the in vitro capacity of equine PMNs to secrete NETs by chemical activation, or stimulated with Streptococcus equi subspecies zooepidemicus (Szoo), Escherichia coli (Ecoli) or Staphylococcus capitis (Scap) strains obtained from mares with endometritis...
December 2014: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/24922821/36%C3%A2-monocyte-subpopulations-counts-and-associations-with-global-longitudinal-strain-in-st-elevation-myocardial-infarction-patients-with-normal-ejection-fraction
#8
Angie Ghattas, Eduard Shantsila, Helen Griffiths, G Lip
INTRODUCTION: Monocytes, with 3 different subsets, are implicated in the initiation and progression of the atherosclerotic plaque contributing to plaque instability and rupture. Mon1 are the "classical" monocytes with inflammatory action, whilst Mon3 are considered reparative with fibroblast deposition ability. The function of the newly described Mon2 subset is yet to be fully described. In PCI era, fewer patients have globally reduced left ventricular ejection fraction post infarction, hence the importance of studying regional wall motion abnormalities and deformation at segmental levels using longitudinal strain...
June 2014: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/24409415/cloning-of-soluble-human-stem-cell-factor-in-pet-26b-vector
#9
Salman Asghari, Mahmoud Shekari Khaniani, Masood Darabi, Sima Mansoori Derakhshan
PURPOSE: Stem cell factor (SCF) plays an important role in the survival, proliferation and differentiation of hematopoietic stem cells and progenitor cells. Potential therapeutic applications of SCF include hematopoietic stem cell mobilization, exvivo stem/progenitor cell expansion, gene therapy, and immunotherapy. Considering the cost and problem in accessibility of this product in Iran, clears the importance of indigenizing production of rhSCF. In the present work, we describe the construction of the soluble rhSCF expression vector in pET-26b (+) with periplasmic localization potential...
2014: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/23461140/survival-study-of-enterotoxigenic-escherichia-colistrain-in-seawater-and-wastewater-microcosms
#10
I Boukef Ben Omrane, M El Bour, S Mejri, R Mraouna, P Got, M Troussellier, A Boudabous
In order to survey osmotic and oligotrophic stress consequence on pathogenic enterobacteria discharged in marine areas, we examined enterotoxigenic Escherichia coli (ETEC) and a reference (Ecoli O126:B16) strains during their survival (47 days) in wastewater microcosms, submerged in natural seawater and maintained in laboratory conditions. The results revealed that the survival time for the two strains was prolonged when bacterial cells were previously incubated in wastewater, with less cellular membrane damage...
2011: Archives de L'Institut Pasteur de Tunis
https://www.readbyqxmd.com/read/21818612/modulation-of-inv-gene-expression-by-the-ompr-two-component-response-regulator-protein-of-yersinia-enterocolitica
#11
A Raczkowska, M Brzóstkowska, A Kwiatek, J Bielecki, K Brzostek
To elucidate the physiological meaning of OmpR-dependent expression of invasin gene (inv) inhibition in Yersinia enterocolitica, the function of the EnvZ/OmpR regulatory pathway in osmoregulation of inv expression was analyzed in detail. The osmoregulation of inv expression was found to be a multifaceted process involving both OmpR-dependent and -independent mechanisms. Analysis of inv transcription in strains lacking OmpR or EnvZ proteins indicated that kinase EnvZ is not the only regulator of OmpR phosphorylation...
July 2011: Folia Microbiologica
https://www.readbyqxmd.com/read/21769889/proteins-from-erwinia-asparaginase-erwinase-%C3%A2-and-e-coli-asparaginase-2-medac-%C3%A2-for-treatment-of-human-leukemia-show-a-multitude-of-modifications-for-which-the-consequences-are-completely-unclear
#12
Narkhyun Bae, Arnold Pollak, Gert Lubec
L-Asparaginase from Erwinia chrysanthemi (ASPG_ERWCH; UniProtKB accession number P06608 (Erwinase(®))) and L-asparaginase 2 from Escherichia coli (ASPG2_ECOLI; UniProtKB accession number P00805 (Medac(®))), both L-asparagine amidohydrolases, are widely used for the treatment of acute lymphoblastic leukemia. A series of serious side effects have been reported and this warrants studies into the protein chemistry of the medical products sold. Mass spectrometry (MS) data on ASPG_ERWCH and ASPG2_ECOLI have not been published so far and herein a gel-based proteomics study was performed to provide information about sequence and modifications of the commercially available medical products...
July 2011: Electrophoresis
https://www.readbyqxmd.com/read/21534860/evaluation-of-in-vitro-effects-of-some-analgesic-drugs-on-erythrocyte-and-recombinant-carbonic-anhydrase-i-and-ii
#13
Başak Gökçe, Nahit Gençer, Oktay Arslan, Sumeyye Aydogan Turkoğlu, Meltem Alper, Feray Köçkar
The in vitro effects of the injectable form of analgesic drugs, dexketoprofen trometamol, dexamethasone sodium phosphate, metamizole sodium, diclofenac sodium, thiocolchicoside, on the activity of purified human carbonic anhydrase I and II were evaluated. The effect of these drugs on erythrocyte hCA I and hCA II was compared to recombinant hCA I and hCA II expressed in Ecoli. IC(50) values of the drugs that caused inhibition were determined by means of activity percentage diagrams. The IC(50) concentrations of dexketoprofen trometamol and dexamethasone sodium phosphate on hCA I were 683 μM and 4250 μM and for hCA II 950 μM and 6200 μM respectively...
February 2012: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/21421763/crispr-distribution-within-the-escherichia-coli-species-is-not-suggestive-of-immunity-associated-diversifying-selection
#14
Marie Touchon, Sophie Charpentier, Olivier Clermont, Eduardo P C Rocha, Erick Denamur, Catherine Branger
In order to get further insights into the role of the clustered, regularly interspaced, short palindromic repeats (CRISPRs) in Escherichia coli, we analyzed the CRISPR diversity in a collection of 290 strains, in the phylogenetic framework of the strains represented by multilocus sequence typing (MLST). The set included 263 natural E. coli isolates exposed to various environments and isolated over a 20-year period from humans and animals, as well as 27 fully sequenced strains. Our analyses confirm that there are two largely independent pairs of CRISPR loci (CRISPR1 and -2 and CRISPR3 and -4), each associated with a different type of cas genes (Ecoli and Ypest, respectively), but that each pair of CRISPRs has similar dynamics...
May 2011: Journal of Bacteriology
https://www.readbyqxmd.com/read/21343909/cas3-is-a-single-stranded-dna-nuclease-and-atp-dependent-helicase-in-the-crispr-cas-immune-system
#15
Tomas Sinkunas, Giedrius Gasiunas, Christophe Fremaux, Rodolphe Barrangou, Philippe Horvath, Virginijus Siksnys
Clustered regularly interspaced short palindromic repeat (CRISPR) is a recently discovered adaptive prokaryotic immune system that provides acquired immunity against foreign nucleic acids by utilizing small guide crRNAs (CRISPR RNAs) to interfere with invading viruses and plasmids. In Escherichia coli, Cas3 is essential for crRNA-guided interference with virus proliferation. Cas3 contains N-terminal HD phosphohydrolase and C-terminal Superfamily 2 (SF2) helicase domains. Here, we provide the first report of the cloning, expression, purification and in vitro functional analysis of the Cas3 protein of the Streptococcus thermophilus CRISPR4 (Ecoli subtype) system...
April 6, 2011: EMBO Journal
https://www.readbyqxmd.com/read/21304626/microbial-burden-of-some-herbal-antimalarials-marketed-at-elele-rivers-state
#16
Y M Tatfeng, E H Olama, T O Ojo
Herbal antimalarials still remain an alternative to our traditional communities who can not afford orthodox antimalarials. This study was aimed at investigating the microbial quality of six herbal antimalarials using standard microbiological methods. Of the six preparations analyzed, "schnapps", palm wine and water were the media of preparation; the water base preparations recorded higher microbial load. The mean microbial load was 159.5 × 10(5) cfu/ml and 217.4 × 10(2)cfu/ml in water and alcohol base preparations respectively...
2010: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/21090104/-construction-and-identification-of-eukaryotic-plasmid-pgc-silencer-u6-neo-gfp-abcg2
#17
Yanping Yu, Song Zhang, Weijia Kong
OBJECTIVE: To construct three short hairpin RNA (shRNA) interference expression plasmid vectors of human ABCG2 gene, to assay the expression of ABCG2 in a human nasopharyngeal carcinoma (NPC) cell line, CEN-2 cell line, and to detect the RNAi effect of shRNA. METHOD: Targeting ABCG2 gene sequence, three plasmid expression vectors coding for shRNA and a control vector containing random DNA fragment were constructed. The recombinant plasmids were amplified in Ecoli...
September 2010: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/20486480/acute-pyelonephritis-can-have-serious-complications
#18
Joanne Shields, Alexander P Maxwell
Urinary tract infection (UTI) may predominantly involve the lower urinary tract, i.e. acute cystitis, or upper urinary tract consisting of the renal pelvis and kidney,, i.e. acute pyelonephritis The incidence of acute pyelonephritis is higher in young women than in men but the incidence in men over 65 is similar to that in older women. Women have up to a 10% risk of recurrent acute pyelonephritis in the year following a first acute episode. The equivalent risk in men is 6%. Acute pyelonephritis may be uncomplicated and resolve without serious sequelae...
April 2010: Practitioner
https://www.readbyqxmd.com/read/20441035/causes-prevention-and-treatment-of-escherichia-coli-infections
#19
Dinah Gould
Escherichia coli is a normal inhabitant of the human gastrointestinal tract and can cause healthcare-associated infections. The organism is most frequently responsible for urinary tract infections and it is the bacterium most often implicated in the cause of diarrhoea in people travelling overseas. In recent years, a strain called Ecoli O157 has gained notoriety for causing foodborne infection, which can have severe health consequences, especially in young children. This article describes the range of different infections caused by Ecoli in healthcare settings and the community and discusses the characteristics of the different strains of the bacteria that explain variations in their pathogenicity...
April 7, 2010: Nursing Standard
https://www.readbyqxmd.com/read/20124603/dnas-from-brucella-strains-activate-efficiently-murine-immune-system-with-production-of-cytokines-reactive-oxygen-and-nitrogen-species
#20
Zahra Tavakoli, Sussan K Ardestani, Taghi Lashkarbolouki, Amina Kariminia, Taghi Zahraei Salehi, Nasser Tavassoli
Brucellosis is an infectious disease with high impact on innate immune responses which is induced partly by its DNA. In the present study the potential differences of wild type and patients isolates versus attenuated vaccine strains in terms of cytokines, ROS and NO induction on murine splenocytes and peritoneal macrophages were investigated. This panel varied in base composition and included DNA from B. abortus, B. melitensis, B.abortus strain S19 and melitensis strain Rev1, as attenuated live vaccine. Also we included Escherichia coli DNA, calf thymus DNA (a mammalian DNA), as controls...
September 2009: Iranian Journal of Allergy, Asthma, and Immunology
keyword
keyword
32209
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"