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https://www.readbyqxmd.com/read/28204577/strep-where-do-we-go-from-here
#1
Stanford T Shulman, Robert R Tanz
No abstract text is available yet for this article.
February 15, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28161160/non-culture-based-identification-of-mastitis-causing-bacteria-by-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry
#2
Juliana Regina Barreiro, Juliano Leonel Gonçalves, Patrícia Aparecida Campos Braga, Aline Gerato Dibbern, Marcos Nogueira Eberlin, Marcos Veiga Dos Santos
The purpose of this study was to evaluate the detection limit of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) for direct identification, without previous microbiological culture, of bovine mastitis-causing bacteria from milk samples. Milk samples (n = 15) were experimentally contaminated with Staphylococcus aureus, Streptococcus uberis, Streptococcus agalactiae, Streptococcus dysgalactiae, and Escherichia coli to have bacterial counts ranging from 10(3) to 10(9) cfu/mL...
February 1, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28138890/adult-atopic-dermatitis-with-comorbid-atopic-disease-is-associated-with-increased-risk-of-infections-a-population-based-cross-sectional-study
#3
Saisindhu Narala, Tissa R Hata
INTRODUCTION: Atopic dermatitis (AD) is related to other atopic diseases asthma and allergic rhinitis. It is known that those with asthma or allergic rhinitis have impaired immune responses that may predispose them to infections. This study sought to determine whether adult AD is associated with systemic infections, and whether association is strengthened in those with AD plus another atopic disease. METHODS: This cross-sectional study obtained information from adults in the 2010 and the 2012 National Health Interview Survey (NHIS)...
January 30, 2017: Dermatology and Therapy
https://www.readbyqxmd.com/read/28135881/streptococcal-pharyngitis-and-appendicitis-in-children
#4
Jason W Nielsen, Stuart A Abel, Brian Kenney
BACKGROUND: Several pathologies, including pharyngitis, are associated with abdominal pain that can mimic appendicitis. We sought to further understand the link between appendicitis-like symptoms and streptococcal (strep) pharyngitis. METHODS: All patients undergoing ultrasound imaging for appendicitis in our emergency department during 2013 were reviewed (n = 1572). A total of 207 patients were identified who underwent both ultrasound for appendicitis and testing for strep pharyngitis...
January 1, 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28131414/diversity-of-enterococcus-faecalis-genotypes-from-multiple-oral-sites-associated-with-endodontic-failure-using-repetitive-sequence-based-polymerase-chain-reaction-and-arbitrarily-primed-polymerase-chain-reaction
#5
Maraísa G Delboni, Brenda P F A Gomes, Priscila A Francisco, Fabrício B Teixeira, David Drake
INTRODUCTION: The aim of this study was to evaluate the diversity and similarity of Enterococcus faecalis genotype isolates from multiple oral sites using repetitive sequence-based polymerase chain reaction and arbitrarily primed polymerase chain reaction (AP-PCR). METHODS: Forty-two endodontically treated teeth with apical periodontitis were selected. A total of 126 microbial samples were collected from 3 different sites (saliva, pulp chamber, and root canals, all n = 42) during the nonsurgical retreatment procedures...
January 25, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28027278/group-b-streptococcal-colonization-among-pregnant-women-in-delhi-india
#6
Manu Chaudhary, Marcia A Rench, Carol J Baker, Pushpa Singh, Charoo Hans, Morven S Edwards
BACKGROUND: Little is known regarding maternal group B streptococcal (GBS) colonization prevalence and capsular (CPS) serotype distribution among pregnant women in India. The objective of this prospective cohort study was to determine GBS recto-vaginal colonization prevalence in pregnant women at Dr. Ram Manohar Lohia Hospital in Delhi, India. METHODS: Literature review identified reports from India assessing GBS colonization prevalence in pregnant women. Rectal and vaginal swabs were inoculated into Strep B Carrot Broth™ and subcultured onto GBS Detect™ plates...
December 23, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28006981/accurate-detection-of-streptococcus-pyogenes-at-the-point-of-care-using-the-cobas-liat-strep-a-nucleic-acid-test
#7
Fangnian Wang, Yu Tian, Lingjun Chen, Robert Luo, Joanna Sickler, Oliver Liesenfeld, Shuqi Chen
The performance of a polymerase chain reaction-based point-of-care assay, the cobas Strep A Nucleic Acid Test for use on the cobas Liat System (cobas Liat Strep A assay), for the detection of group A Streptococcus bacteria was evaluated in primary care settings. Throat swab specimens from 427 patients were tested with the cobas Liat Strep A assay and a rapid antigen detection test (RADT) by existing medical staff at 5 primary care clinics, and results were compared with bacterial culture. The cobas Liat Strep A assay demonstrated equivalent sensitivity (97...
December 1, 2016: Clinical Pediatrics
https://www.readbyqxmd.com/read/28004186/non-thiolate-ligation-of-nickel-by-nucleotide-free-ureg-of-klebsiella-aerogenes
#8
Vlad Martin-Diaconescu, Crisjoe A Joseph, Jodi L Boer, Scott B Mulrooney, Robert P Hausinger, Michael J Maroney
Nickel-dependent ureases are activated by a multiprotein complex that includes the GTPase UreG. Prior studies showed that nucleotide-free UreG from Klebsiella aerogenes is monomeric and binds one nickel or zinc ion with near-equivalent affinity using an undefined binding site, whereas nucleotide-free UreG from Helicobacter pylori selectively binds one zinc ion per dimer via a universally conserved Cys-Pro-His motif in each protomer. Iodoacetamide-treated K. aerogenes UreG was nearly unaffected in nickel binding compared to non-treated sample, suggesting the absence of thiolate ligands to the metal...
December 21, 2016: Journal of Biological Inorganic Chemistry: JBIC
https://www.readbyqxmd.com/read/27988111/diagnostic-accuracy-of-a-standardized-scheme-for-identification-of-streptococcus-uberis-in-quarter-milk-samples-a-comparison-between-conventional-bacteriological-examination-modified-rambach-agar-medium-culturing-and-16s-rrna-gene-sequencing
#9
Regina Wald, Martina Baumgartner, Verena Urbantke, Beatrix Stessl, Thomas Wittek
Bacteriological examination of milk samples is a prerequisite for pathogen-specific therapy and aids in limiting antimicrobial resistance. The aims of this study were to establish a standardized scheme for reliable Streptococcus uberis identification in routine diagnosis and to evaluate the accuracy of conventional tests and growing patterns of Strep. uberis on a selective medium (modified Rambach agar medium, MRAM) using 16S rRNA gene sequencing analysis as a reference method. We obtained isolates of presumptive Strep...
February 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/27986634/novel-interacting-proteins-identified-by-tandem-affinity-purification-coupled-to-nano-lc-ms-ms-interact-with-ribosomal-s6-protein-kinase-4-rsk4-and-its-variant-protein-rsk4m
#10
Riqiang Liu, Tianhua Liu, Wei Wei, Kun Guo, Ning Yang, Siqi Tian, Jia Zhu, Yinkun Liu, Wenting Zhou, Huawei Yang
Ribosomal S6 protein kinase 4 (RSK4) is an important novel tumor suppressor that inhibits breast cancer cell growth and induces senescence. However, RSK4m, which is a variant of RSK4 resulting from alternative splicing, may play distinct roles in some aspects. Knowledge about the mechanisms of RSK4 or RSK4m activity has been lacking. Analysis of the RSK4 and RSK4m interactome could provide insight into their specific functions and integrative mechanisms. Using tandem affinity purification, we obtained protein complexes that interacted with RSK4 or RSK4m...
December 13, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27867675/a-case-of-thyroid-storm-associated-with-cardiomyopathy-and-poststreptococcal-glomerulonephritis
#11
Lisa J Underland, Gerson A Vallencia Villeda, Abhijeet Pal, Leslie Lam
Thyroid storm has a high mortality rate and is often associated with a precipitating factor such as intercurrent illness or infection. It is rare in pediatric patients. Cardiac disease in hyperthyroidism mostly manifests itself as tachycardia but more serious cardiac findings have also been described. A 5-year-old male with recent strep throat infection presented with dilated cardiomyopathy, hematuria, and symptoms and lab findings consistent with severe hyperthyroidism. He was diagnosed with thyroid storm secondary to concurrent Graves' disease and poststreptococcal glomerulonephritis (PSGN)...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/27867058/application-of-strep-tactin-xt-for-affinity-purification-of-twin-strep-tagged-cb2-a-g-protein-coupled-cannabinoid-receptor
#12
Alexei Yeliseev, Lioudmila Zoubak, Thomas G M Schmidt
Human cannabinoid receptor CB2 belongs to the class A of G protein-coupled receptor (GPCR). CB2 is predominantly expressed in membranes of cells of immune origin and is implicated in regulation of metabolic pathways of inflammation, neurodegenerative disorders and pain sensing. High resolution structural studies of CB2 require milligram quantities of purified, structurally intact protein. While we previously reported on the methodology for expression of the recombinant CB2 and its stabilization in a functional state, here we describe an efficient protocol for purification of this protein using the Twin-Strep-tag/Strep-Tactin XT system...
November 17, 2016: Protein Expression and Purification
https://www.readbyqxmd.com/read/27851403/1768-multifocal-necrotizing-fasciitis-due-to-group-a-strep-presenting-with-otalgia-in-a-pediatric-patient
#13
Kate Waldeck, Rodney Daniels, Michael Watson, Leena Shahbaz
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27818775/characterization-and-antimicrobial-susceptibility-of-one-antibiotic-sensitive-and-one-multidrug-resistant-corynebacterium-kroppenstedtii-strain-isolated-from-patients-with-granulomatous-mastitis
#14
I Fernández-Natal, D Rodríguez-Lázaro, T Marrodán-Ciordia, J A Sáez-Nieto, S Valdezate, H Rodríguez-Pollán, A Tauch, F Soriano
Human infections associated with Corynebacterium kroppenstedtii are rarely reported, and this organism is usually described as antibiotic sensitive. Almost all published cases of C. kroppenstedtii infections have been associated with breast pathology in women and have been described in New Zealand, France, Canada, India and Japan. Here we describe the microbiologic characteristics of two strains isolated from two women diagnosed of granulomatous mastitis in Spain. One C. kroppenstedtii isolate was antibiotic sensitive while the other was multidrug resistant...
November 2016: New Microbes and New Infections
https://www.readbyqxmd.com/read/27809838/characterization-of-plasmodium-falciparum-atp-dependent-dna-helicase-ruvb3
#15
Paviga Limudomporn, Saengduen Moonsom, Ubolsree Leartsakulpanich, Pattra Suntornthiticharoen, Songsak Petmitr, Michael Weinfeld, Porntip Chavalitshewinkoon-Petmitr
BACKGROUND: Malaria is one of the most serious and widespread parasitic diseases affecting humans. Because of the spread of resistance in both parasites and the mosquito vectors to anti-malarial drugs and insecticides, controlling the spread of malaria is becoming difficult. Thus, identifying new drug targets is urgently needed. Helicases play key roles in a wide range of cellular activities involving DNA and RNA transactions, making them attractive anti-malarial drug targets. METHODS: ATP-dependent DNA helicase gene (PfRuvB3) of Plasmodium falciparum strain K1, a chloroquine and pyrimethamine-resistant strain, was inserted into pQE-TriSystem His-Strep 2 vector, heterologously expressed and affinity purified...
November 3, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27789054/-management-of-preterm-labor
#16
G Kayem, E Lorthe, M Doret
OBJECTIVE: To define the management of preterm labor (MAP). METHOD: The literature search was conducted using computer databases Medline and the Cochrane Library for a period from 1969 to March 2016. RESULTS: Leukocytosis screening may be useful in case of hospitalization for Preterm labor (PTL). Its use is not routine (professional consensus). Screening for urinary tract infection by urine culture should be systematic and antibiotic treatment should be performed in cases of bacterial colonization or urinary tract infection for a period of 7 days (grade A)...
December 2016: Journal de Gynécologie, Obstétrique et Biologie de la Reproduction
https://www.readbyqxmd.com/read/27781152/expression-and-characterization-of-thermotolerant-lipase-with-broad-ph-profiles-isolated-from-an-antarctic-pseudomonas-sp-strain-ams3
#17
Wahhida Latip, Raja Noor Zaliha Raja Abd Rahman, Adam Thean Chor Leow, Fairolniza Mohd Shariff, Mohd Shukuri Mohamad Ali
A gene encoding a thermotolerant lipase with broad pH was isolated from an Antarctic Pseudomonas strain AMS3. The recombinant lipase AMS3 was purified by single-step purification using affinity chromatography, yielding a purification fold of approximately 1.52 and a recovery of 50%. The molecular weight was approximately ∼60 kDa including the strep and affinity tags. Interestingly, the purified Antarctic AMS3 lipase exhibited broad temperature profile from 10-70 °C and stable over a broad pH range from 5...
2016: PeerJ
https://www.readbyqxmd.com/read/27770528/bacteriological-examination-of-the-abdominal-effusion-in-bacterial-peritonitis
#18
T Didbaridze, L Saginashvili, L Akhmeteli, B Iremashvili, N Gogokhia
This study provides a contemporary epidemiology of aspirates taken during surgery from the abdominal cavity among patients with bacterial peritonitis to identify the isolates and study their sensitivity to antibiotics. Our bacteriology investigations included isolation of poor cultures, and detection of microbes was conducted using a rapid identification system (API20E, API Staph, API Strep, API Ana, BioMerieux). Rapid tests for detection of oxidase and catalase activity were also used. Susceptibility of microorganisms to antibiotics was defined by the disc-diffusion method using standard discs (EUCAST guidelines 2015) according to Clinical Laboratory Standard Institute (CLSI) protocols (ATB strips: ATB G, ATB Staph, ATBANA, ATBPse, ATBStrep...
September 2016: Georgian Medical News
https://www.readbyqxmd.com/read/27720156/identification-of-factors-influencing-teat-dip-efficacy-trial-results-by-meta-analysis
#19
B D Enger, R R White, S C Nickerson, L K Fox
Two meta-analyses were conducted using data from peer-reviewed natural exposure (NE) and experimental challenge (EC) teat dip efficacy trials to identify factors influencing the new intramammary infection (IMI) rate. A NE data set containing 16 studies and an EC data set containing 21 studies were created. New IMI rate was calculated based on the percentage of new quarter infections per month (PNQI/mo) for each observation, in both data sets, and used as the dependent variable for model derivation. A linear, mixed-effects model with a random study effect, weighted by number of quarters eligible for infection, was derived for each data set...
December 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27695674/characteristics-of-mucoid-streptococcus-pyogenes-isolated-from-two-patients-with-pneumonia-in-a-local-community
#20
Nobuaki Mori, Sakiko Hosoo, Yoshitaka Oyamada, Yasushi Sera, Yasuhiro Yamada, Momoko Sugawara, Akiko Higuchi, Yasuko Aoki, Takashi Takahashi
Streptococcus pyogenes (Group A Streptococcus, GAS) infections can develop into life-threatening disorders. However, the occurrence of some GAS pneumonia cases is relatively rare in a local community. We report here characteristics of mucoid GAS isolates obtained from the sputum of two patients with pneumonia in a local community. Although case-patients did not have contact with each other, case-patient 1's child and case-patient 2's grandchild attended the same kindergarten where a GAS pharyngitis epidemic had occurred...
2016: IDCases
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