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https://www.readbyqxmd.com/read/28431310/characterization-of-bacterial-communities-of-donkey-milk-by-high-throughput-sequencing
#1
Maria de Los Dolores Soto Del Rio, Alessandra Dalmasso, Tiziana Civera, Maria Teresa Bottero
The interest in donkey milk (DM) is growing because of its functional properties and nutritional value, especially for children with allergies and food intolerances. However, most of the available reports of DM microbiota are based on culture-dependent methods to investigate food safety issues and the presence of lactic acid bacteria (LAB). The aim of this study was to determine the composition of DM bacterial communities using a high-throughput sequencing (HTS) approach. Bulk milk samples from Italian donkey dairy farms from two consecutive years were analysed using the MiSeq Illumina platform...
March 30, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28430673/antimicrobial-resistant-streptococcus-pneumoniae-prevalence-mechanisms-and-clinical-implications
#2
Regine Cherazard, Marcia Epstein, Thien-Ly Doan, Tanzila Salim, Sheena Bharti, Miriam A Smith
BACKGROUND: Streptococcus pneumoniae is a major cause of pneumonia, meningitis, sepsis, bacteremia, and otitis media. S. pneumoniae has developed increased resistance to multiple classes of antibiotics. STUDY DESIGN: Systematic literature review of prevalence, mechanisms, and clinical implications in S. pneumoniae resistance. AREAS OF UNCERTAINTY: Since S. pneumoniae resistance to penicillin was first reported with subsequent development of resistance to other classes of drugs, selection of appropriate antibiotic treatment is challenging...
April 19, 2017: American Journal of Therapeutics
https://www.readbyqxmd.com/read/28429163/antimicrobial-susceptibility-of-bacterial-isolates-from-patients-presenting-with-ear-nose-and-throat-ent-infections-in-the-german-community-healthcare-setting
#3
B Olzowy, M Kresken, M Havel, D Hafner, B Körber-Irrgang
Empiric initial antibiotic therapy of bacterial infections is based primarily upon the susceptibility of the most common causative pathogens. The purpose of this study was to provide susceptibility data on six bacterial species known to cause ear, nose and throat (ENT) infections. A total of 1066 isolates collected during a nationwide laboratory-based surveillance study were analysed. All Streptococcus pyogenes isolates were penicillin (PEN)-susceptible, indicating that natural penicillins can still be recommended as the first-line treatment for group A streptococcal tonsillopharyngitis...
April 20, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28428309/draft-genome-sequences-of-two-highly-erythromycin-resistant-streptococcus-gallolyticus-subsp-gallolyticus-isolates-containing-a-novel-tn916-like-element-tn6331
#4
Stanimir Kambarev, Frédéric Pecorari, Stéphane Corvec
Recently, we reported the draft genome sequence of Streptococcus gallolyticus NTS31106099. It was found to contain a previously unknown putative Tn916-like conjugative transposon, Tn6263 Here, we report the draft genome sequences of two other clinical isolates, NTS31301958 and NTS31307655. Both of them contain another novel element, Tn6331, which is highly similar to Tn6263.
April 20, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28428288/complete-genome-sequence-of-the-streptococcus-gallolyticus-subsp-gallolyticus-strain-dsm-16831
#5
Imke Grimm, Jessika Dumke, Tanja Vollmer, Dennis Hinse, Christian Rückert, Jörn Kalinowski, Cornelius Knabbe, Jens Dreier
Streptococcus gallolyticus subsp. gallolyticus DSM 16831 is an intriguing strain because of its low virulent phenotype compared to other isolates. We present here the complete genome sequence for this strain isolated from koala feces.
April 20, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28428133/epidemiological-study-of-common-diseases-and-their-risk-factors-in-camels-in-south-punjab-pakistan
#6
Aneela Zameer Durrani, Zubair Bashir, Imran Rasheed, Noor-Ul-Ain Sarwar
Bacteriological study of mastitis along with common blood protozoan diseases were studied in dromedary camels in Cholistan, Dera Ismail Khan and Rahim Yar Khan districts in South Punjab, Pakistan. For this purpose 300 camels were sampled randomly at different common grazing and watering point. For study of blood parasites clinically suspected and apparently healthy camels, 150 each, were sampled. An overall prevalence of 15%and 5% was recorded for trypanosomiasis and Anaplasmosis respectively. Trypanosoma evansi was identified with 280 bp product on polymerase chain reaction test...
April 17, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28427991/impact-of-the-pneumococcal-conjugate-vaccine-on-serotype-distribution-of-adult-non-invasive-streptococcus-pneumoniae-isolates-in-tokai-region-japan-2008-2016
#7
Yuri Furuya, Yuka Yamagishi, Hayato Okade, Takumi Kadota, Tori Funatsu, Maki Eto, Nobuhiko Nomura, Junichi Mitsuyama, Hiroshige Mikamo
The introduction of the 7-valent pneumococcal conjugate vaccine (PCV7) in February 2010 markedly reduced the burden of invasive pneumococcal disease and changed serotype distribution in Japan. In November 2013, PCV7 was replaced by the 13-valent pneumococcal conjugate vaccine (PCV13). We investigated the serotype distribution and susceptibility trends of non-invasive Streptococcus pneumoniae isolates collected from adult patients. A total of 504 pneumococcal isolates were collected during 4 periods between 2008 and 2016 (Period 1; between June 2008 and April 2009, Period 2; between September 2010 and March 2011, Period 3; between October 2011 and March 2012, Period 4; between August 2015 and January 2016)...
April 17, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28427732/endogenous-bacterial-endophthalmitis-a-report-of-2cases
#8
M Cubillas, A Sampedro, B Domínguez, I Carrio, V Bango, J J Barbón
CLINICAL CASES: The cases are presented on 2patients with bacterial endogenous endophthalmitis. The first one was caused by Streptococcus bovis, developed after colonoscopy, which had a poor outcome and resulted in evisceration. The second case was caused by a methicillin resistant Staphylococcus aureus from an arthrodesis complicated with a para-spinal abscess. It had an excellent visual outcome. DISCUSSION: Bacterial endogenous endophthalmitis is a rare, but serious ocular disease that occurs when bacteria reach the eye via the bloodstream...
April 17, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28427348/comparative-genomics-and-evolution-of-the-amylase-binding-proteins-of-oral-streptococci
#9
Elaine M Haase, Yurong Kou, Amarpreet Sabharwal, Yu-Chieh Liao, Tianying Lan, Charlotte Lindqvist, Frank A Scannapieco
BACKGROUND: Successful commensal bacteria have evolved to maintain colonization in challenging environments. The oral viridans streptococci are pioneer colonizers of dental plaque biofilm. Some of these bacteria have adapted to life in the oral cavity by binding salivary α-amylase, which hydrolyzes dietary starch, thus providing a source of nutrition. Oral streptococcal species bind α-amylase by expressing a variety of amylase-binding proteins (ABPs). Here we determine the genotypic basis of amylase binding where proteins of diverse size and function share a common phenotype...
April 20, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28427277/biological-activity-and-lc-ms-ms-profiling-of-extracts-from-the-australian-medicinal-plant-acacia-ligulata-fabaceae
#10
Diana Jæger, Bradley S Simpson, Chi P Ndi, Anna K Jäger, Christoph Crocoll, Birger Lindberg Møller, Philip Weinstein, Susan J Semple
Acacia ligulata A.Cunn. ex Benth. (Fabaceae: Mimosoideae) is a native Australian plant used traditionally by Australian Aboriginal groups. This study was undertaken to investigate the bioactivity of A. ligulata extracts and to evaluate their chemical composition. Potential antibacterial, cytotoxic and enzyme inhibitory effects relevant to traditional medicinal and food uses of the species were examined and LC-MS/MS was performed to investigate the chemical composition. Antibacterial activity was observed for bark and leaf extracts with an MIC for the bark extract of 62...
April 21, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28426833/correction-modulation-of-behaviour-and-virulence-of-a-high-alginate-expressing-pseudomonas-aeruginosa-strain-from-cystic-fibrosis-by-oral-commensal-bacterium-streptococcus-anginosus
#11
Richard D Waite, Muhammad R Qureshi, Robert A Whiley
[This corrects the article DOI: 10.1371/journal.pone.0173741.].
2017: PloS One
https://www.readbyqxmd.com/read/28425925/evaluation-of-the-immunomodulatory-properties-of-streptococcus-suis-and-group-b-streptococcus-capsular-polysaccharides-on-the-humoral-response
#12
Cynthia Calzas, Morgan Taillardet, Insaf Salem Fourati, David Roy, Marcelo Gottschalk, Hugo Soudeyns, Thierry Defrance, Mariela Segura
Streptococcus suis and group B Streptococcus (GBS) are encapsulated streptococci causing septicemia and meningitis. Antibodies (Abs) against capsular polysaccharides (CPSs) have a crucial protective role, but the structure/composition of the CPS, including the presence of sialic acid, may interfere with the generation of anti-CPS Ab responses. We investigated the features of the CPS-specific Ab response directed against S. suis serotypes 2 and 14 and GBS serotypes III and V after infection or immunization with purified native or desialylated CPSs in mice...
April 20, 2017: Pathogens
https://www.readbyqxmd.com/read/28425874/in-vitro-and-in-vivo-assessments-of-rhodomyrtus-tomentosa-leaf-extract-as-an-alternative-anti-streptococcal-agent-in-nile-tilapia-oreochromis-niloticus-l
#13
Pinanong Na-Phatthalung, Sasitorn Chusri, Naraid Suanyuk, Supayang Piyawan Voravuthikunchai
PURPOSE: Rhodomyrtustomentosa is a Thai medicinal plant that has been attracting attention for its remarkable antibacterial properties against Gram-positive pathogenic bacteria. The purpose of this study was to evaluate the antibacterial properties of R. tomentosa leaf extract against Streptococcus agalactiae and Streptococcus iniae isolated from infected tilapia. METHODOLOGY: The anti-streptococcal activity of R. tomentosa was determined using broth microdilution assays...
April 21, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28425599/the-starch-binding-domain-family-cbm41-an-in-silico-analysis-of-evolutionary-relationships
#14
Štefan Janeček, Katarína Majzlová, Birte Svensson, E Ann MacGregor
Within the CAZy database, there are 81 carbohydrate-binding module (CBM) families. A CBM represents a non-catalytic domain in a modular arrangement of glycoside hydrolases (GHs). The present in silico study has been focused on starch-binding domains from the family CBM41 that are usually part of pullulanases from the α-amylase family GH13. Currently there are more than 1,600 sequences classified in the family CBM41, almost exclusively from Bacteria, and so a study was undertaken in an effort to divide the members into relevant groups (subfamilies) and also to contribute to the evolutionary picture of family CBM41...
April 20, 2017: Proteins
https://www.readbyqxmd.com/read/28425257/role-of-hygienic-factors-in-the-etiology-of-allergic-disorders-in-children
#15
Şule Yeşil, Ahmet Kan, Olkar Abdulmajed, Arzu Bakirtaş, Nedim Sultan, Sadık M Demirsoy
BACKGROUND/AIM: We investigated the role of body flora and chronic inflammatory infections in the etiology of allergic disorders in Turkish children. MATERIALS AND METHODS: Forty pediatric asthma patients with positive skin prick tests and 40 age-matched healthy subjects with negative skin prick tests were enrolled in this cross-sectional study. Serum H. pylori IgG, viral hepatitis serology, IL-10, and TGF-beta levels were measured. Stool and throat cultures were taken and tested for occurrence of microorganisms...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424248/splenic-ly6g-high-mature-and-ly6g-int-immature-neutrophils-contribute-to-eradication-of-s-pneumoniae
#16
Justin F Deniset, Bas G Surewaard, Woo-Yong Lee, Paul Kubes
The spleen plays an integral protective role against encapsulated bacterial infections. Our understanding of the associated mechanisms is limited to thymus-independent (TI) antibody production by the marginal zone (MZ) B cells, leaving the contribution of other splenic compartments such as the red pulp (RP) largely unexplored despite asplenic patients succumbing to the infection in the first 24 h, suggesting important antibody-independent mechanisms. In this study, using time-lapse intravital imaging of the spleen, we identify a tropism for Streptococcus pneumoniae in this organ mediated by tissue-resident MZ and RP macrophages and a protective role for two distinct splenic neutrophil populations (Ly6G(hi) and Ly6G(intermediate)) residing in the splenic RP...
April 19, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28424247/location-in-the-spleen-dictates-the-function-of-murine-neutrophils
#17
Patrizia Scapini, Marco A Cassatella
In this issue of JEM, Deniset et al. (https://doi.org/10.1084/jem.20161621) provide new data that extend our knowledge on the mechanisms whereby Streptococcus pneumoniae is cleared by the spleen. The authors identify novel populations of murine splenic neutrophils that localize in the red pulp and the marginal zone. During the acute phases of S. pneumoniae infection, these populations of splenic neutrophils act in concert with specialized macrophage and B cell populations to provide very rapid innate immune protection...
April 19, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28422601/degradation-of-resin-restorative-materials-by-streptococcus-mutans-a-pilot-study
#18
Ankit K Gautam, Ruchi Thakur, N D Shashikiran, Singla Shilpy, Nikita Agarwal, Shilpi Tiwari
OBJECTIVE: To evaluate the degradation of three resin based restorative materials by S Mutans. STUDY DESIGN: Class I cavity was prepared in extracted premolars and were randomly divided into 3 groups (Group I - Conventional composite (CC), Group II - Resin Modified GIC and Group III-Giomer). Teeth were then restored by respective restorative material and equally divided in two subgroups (Control and Experimental). Experiment subgroup samples were then incubated in 2 ml of BHI with 1:10 dilution of SM (MTCC-497) grown overnight in BHI whereas control subgroup samples were incubated in BHI without SM...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28422083/nasopharyngeal-carriage-and-antimicrobial-susceptibility-patterns-of-streptococcus-pneumoniae-among-children-under-five-in-southwest-ethiopia
#19
Tiglu Gebre, Mulualem Tadesse, Dossegnaw Aragaw, Dagne Feye, Habtamu Bedimo Beyene, Dinberu Seyoum, Mekidim Mekonnen
Nasopharyngeal carriage of Streptococcus pneumoniae is found to play an important role in the development and transmission of pneumococcal diseases. In this study, we assessed the nasopharyngeal carriage, antimicrobial susceptibility patterns and associated risk factors of S. pneumoniae among children under five. A total of 361 children under five attending the outpatient department of Shanan Gibe Hospital in Jimma, Southwest Ethiopia were enrolled from June to September 2014. Nasopharyngeal specimens were collected using sterile plastic applicator rayon tipped swab and inoculated on tryptone soy agar supplemented with 5% sheep blood and 5 µg/mL gentamycin...
April 19, 2017: Children
https://www.readbyqxmd.com/read/28420677/tcup-typing-and-characterization-of-bacteria-using-bottom-up-tandem-mass-spectrometry-proteomics
#20
Fredrik Boulund, Roger Karlsson, Lucia Gonzales-Siles, Anna Johnning, Nahid Karami, Omar Al-Bayati, Christina Ahren, Edward R B Moore, Erik Kristiansson
Methods for rapid and reliable microbial identification are essential in modern healthcare. The ability to detect and correctly identify pathogenic species and their resistance phenotype is necessary for accurate diagnosis and efficient treatment of infectious diseases. Bottom-up tandem mass spectrometry (MS) proteomics enables rapid characterization of large parts of the expressed genes of microorganisms. However, the generated data is highly fragmented, making down-stream analyses complex. Here we present TCUP, a new computational method for typing and characterizing bacteria using proteomics data from bottom-up tandem MS...
April 18, 2017: Molecular & Cellular Proteomics: MCP
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