keyword
MENU ▼
Read by QxMD icon Read
search

Streptococcus equi

keyword
https://www.readbyqxmd.com/read/28681687/retrospective-study-of-fatal-pneumonia-in-racehorses
#1
Francisco R Carvallo, Francisco A Uzal, Santiago S Diab, Ashley E Hill, Rick M Arthur
Respiratory diseases have a major impact on racehorses in training and are often cited as the second most common reason of horses failing to perform. Cases were submitted by the California Horse Racing Board to the California Animal Health and Food Safety laboratory for postmortem examination between January 1, 2005 and December 31, 2014. We determined the demographics of racehorses with fatal pneumonia, characterized the pathologic findings in animals with a postmortem diagnosis of respiratory infection, and determined the most significant pathogens associated with lower respiratory tract disease...
July 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28666619/development-of-a-multiplex-pcr-for-identification-of-%C3%AE-hemolytic-streptococci-relevant-to-human-infections-and-serotype-distribution-of-invasive-streptococcus-agalactiae-in-thailand
#2
Anusak Kerdsin, Rujirat Hatrongjit, Shigeyuki Hamada, Yukihiro Akeda, Marcelo Gottschalk
A multiplex polymerase chain reaction (mPCR) was developed for simultaneous detection (single reaction) of genes specific to five frequent clinically relevant β-hemolytic streptococcal species: Streptococcus pyogenes (Spy1258), Streptococcus agalactiae (cfb and cpn60), Streptococcus dysgalactiae subsp. equisimilis (16S-23S intergenic spacer) , S. equi subsp. zooepidemicus (esaA and sorD), and Streptococcus anginosus group (moaC). No cross-reaction was observed with other bacterial species. This test was validated and successfully used with 725 clinical isolates involved in pathological conditions in Thailand and collected between March 2014 and December 2015...
June 27, 2017: Molecular and Cellular Probes
https://www.readbyqxmd.com/read/28661019/prevalence-of-methicillin-resistant-staphylococcus-aureus-from-equine-nasopharyngeal-and-guttural-pouch-wash-samples
#3
A G Boyle, S C Rankin, L A Duffee, D Morris
BACKGROUND: Methicillin-resistant Staphylococcus aureus (MRSA) is recognized as a cause of nosocomial infections in both human and veterinary medicine. Studies that examine the nasopharynx and guttural pouches of the horse as carriage sites for MRSA have not been reported. HYPOTHESIS/OBJECTIVE: MRSA colonizes the nasopharynx and guttural pouch of horses. To determine the prevalence of MRSA in equine nasopharyngeal wash (NPW) and guttural pouch lavage (GPL) samples in a field population of horses...
June 29, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28600445/acute-fatal-haemorrhagic-pneumonia-caused-by-streptococcus-equi-zooepidemicus-in-greyhounds-in-ireland-with-subsequent-typing-of-the-isolates
#4
W FitzGerald, B Crowe, P Brennan, J P Cassidy, M Leahy, M C McElroy, M Casey, A Waller, C Mitchell
No abstract text is available yet for this article.
June 9, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28569630/a-case-control-study-developing-a-model-for-predicting-risk-factors-for-high-sem-specific-antibody-titers-after-natural-outbreaks-of-streptococcus-equi-subsp-equi-infection-in-horses
#5
Ashley G Boyle, Meagan A Smith, Raymond C Boston, Darko Stefanovski
OBJECTIVE To develop a risk prediction model for factors associated with an SeM-specific antibody titer ≥ 3,200 in horses after naturally occurring outbreaks of Streptococcus equi subsp equi infection and to validate this model. DESIGN Case-control study. ANIMALS 245 horses: 57 horses involved in strangles outbreaks (case horses) and 188 healthy horses (control horses). PROCEDURES Serum samples were obtained from the 57 cases over a 27.5-month period after the start of outbreaks; serum samples were obtained once from the 188 controls...
June 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28569133/defining-the-abc-of-gene-essentiality-in-streptococci
#6
Amelia R L Charbonneau, Oliver P Forman, Amy K Cain, Graham Newland, Carl Robinson, Mike Boursnell, Julian Parkhill, James A Leigh, Duncan J Maskell, Andrew S Waller
BACKGROUND: Utilising next generation sequencing to interrogate saturated bacterial mutant libraries provides unprecedented information for the assignment of genome-wide gene essentiality. Exposure of saturated mutant libraries to specific conditions and subsequent sequencing can be exploited to uncover gene essentiality relevant to the condition. Here we present a barcoded transposon directed insertion-site sequencing (TraDIS) system to define an essential gene list for Streptococcus equi subsp...
May 31, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28532794/immunogenicity-of-phospholipase-a2-toxins-and-their-role-in-streptococcus-equi-pathogenicity
#7
M R López-Álvarez, M Salze, A Cenier, C Robinson, R Paillot, A S Waller
Streptococcus equi subsp. equi (S. equi) is the causative agent of strangles, one of the most frequently diagnosed infectious diseases of horses worldwide. Phospholipase A2 toxins (PLA2) cleave phospholipid molecules at position sn-2 contributing to the production of leukotrienes that are important inflammatory mediators. Two homologous phospholipases, SlaA and SlaB are encoded by the S. equi genome suggesting that PLA2 toxins may contribute to its pathogenicity. Here we report the immunogenicity and role of PLA2 toxins during natural and experimental infection of horses with S...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28492782/-outbreak-of-nephritis-by-streptococcus-equi-subspecies-zooepidemicus-case-control-study-in-the-municipality-of-monte-santo-de-minas-minas-gerais-brazil-2013
#8
Patricia de Almeida Soares, Heloísa Helena Pelluci Duarte, Junara Viana de Oliveira, Leandro Leão Faúla, Rosângela Stadnick Lauth de Almeida Torres, Margareth Leonor Penkal, Mark Drew Crosland Guimarães
OBJECTIVE: to investigate an outbreak of nephritis by Streptococcus zooepidemicus in Monte Santo de Minas, Minas Gerais State, Brazil. METHODS: a case-control study and attempt to isolate the bacterial agent were carried out from January to April 2013, using clinical and laboratory data, interviews and inspections. RESULTS: 417 suspected cases were reported, of which 175 (42.0%) were confirmed; 90.9% lived in that municipality, of which 67...
April 2017: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/28460559/discrimination-of-streptococcus-equi-subsp-equi-and-streptococcus-equi-subsp-zooepidemicus-using-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry
#9
Rinosh J Mani, Anil J Thachil, Akhilesh Ramachandran
Accurate and timely identification of infectious etiologies is of great significance in veterinary microbiology, especially for critical diseases such as strangles, a highly contagious disease of horses caused by Streptococcus equi subsp. equi. We evaluated a matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) platform for use in species- and subspecies-level identification of S. equi isolates from horses and compared it with an automated biochemical system. We used 25 clinical isolates each of S...
April 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28335829/comparison-of-nasopharyngeal-and-guttural-pouch-specimens-to-determine-the-optimal-sampling-site-to-detect-streptococcus-equi-subsp-equi-carriers-by-dna-amplification
#10
Ashley G Boyle, Darko Stefanovski, Shelley C Rankin
BACKGROUND: Streptococcus equi subsp equi (S. equi) is the cause of "equine strangles" which is a highly infectious upper respiratory disease. Detection of S. equi is influenced by site of specimen collection, method of sampling, and type of diagnostic test that is performed. We hypothesized i) that a loop-mediated isothermal amplification (LAMP) assay that targets the S. equi-specific eqbE gene would be more sensitive than a realtime PCR assay that targets the S. equi-specific seeI gene and ii) that LAMP of specimens obtained by guttural pouch lavage (GPL) would be more sensitive than LAMP of nasopharyngeal specimens to identify S...
March 23, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28293868/engineering-s-equi-subsp-zooepidemicus-towards-concurrent-production-of-hyaluronic-acid-and-chondroitin-biopolymers-of-biomedical-interest
#11
Donatella Cimini, Ileana Dello Iacono, Elisabetta Carlino, Rosario Finamore, Odile F Restaino, Paola Diana, Emiliano Bedini, Chiara Schiraldi
Glycosaminoglycans, such as hyaluronic acid and chondroitin sulphate, are not only more and more required as main ingredients in cosmeceutical and nutraceutical preparations, but also as active principles in medical devices and pharmaceutical products. However, while biotechnological production of hyaluronic acid is industrially established through fermentation of Streptococcus spp. and recently Bacillus subtilis, biotechnological chondroitin is not yet on the market. A non-hemolytic and hyaluronidase negative S...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28271546/factors-associated-with-survival-in-97-horses-with-septic-pleuropneumonia
#12
M G Arroyo, N M Slovis, G E Moore, S D Taylor
BACKGROUND: Septic pleuropneumonia is a common cause of morbidity and mortality in horses, but there is limited data available regarding factors associated with survival. HYPOTHESIS/OBJECTIVES: To identify factors predictive of survival in horses with septic pleuropneumonia. ANIMALS: A total of 97 horses with septic pleuropneumonia at 2 referral institutions. METHODS: A retrospective study was performed. A diagnosis of septic pleuropneumonia was based on the presence of sepsis, pleural effusion, and positive bacterial culture from tracheal aspiration (TA) or pleural fluid (PF)...
May 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28201995/zoonotic-necrotizing-myositis-caused-by-streptococcus-equi-subsp-zooepidemicus-in-a-farmer
#13
Bård Reiakvam Kittang, Veronika Kuchařová Pettersen, Oddvar Oppegaard, Dag Harald Skutlaberg, Håvard Dale, Harald G Wiker, Steinar Skrede
BACKGROUND: Streptococcus equi subsp. zooepidemicus is a beta-hemolytic group C streptococcus mainly causing infections in domesticated animals. Here we describe the first case of zoonotic necrotizing myositis caused by this bacterium. CASE PRESENTATION: The patient was a 73-year-old, previously healthy farmer with two asymptomatic Shetland ponies in his stable. After close contact with the ponies while feeding them, he rapidly developed erythema of his left thigh and sepsis with multiple organ failure...
February 15, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28199901/cd44-deficiency-enhanced-streptococcus-equi-ssp-zooepidemicus-dissemination-and-inflammation-response-in-a-mouse-model
#14
Qiang Fu, Pingping Xiao, Yaosheng Chen, Zigong Wei, Xiaohong Liu
Streptococcus equi ssp. zooepidemicus (S. zooepidemicus) is responsible for peritonitis, septicemia, meningitis, arthritis and several other serious diseases in various species. Recent studies have demonstrated that CD44 is implicated in the process of host defense against pathogenic microorganisms. In the present study, the role of CD44 in the host response to S. zooepidemicus infection was investigated in a mouse model. Upon intraperitoneal infection with S. zooepidemicus, the expression of CD44 on the peritoneal exudate cells from wild-type (WT) mice was increased...
February 9, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28139956/bacterial-microbiota-in-harbor-seals-phoca-vitulina-from-the-north-sea-of-schleswig-holstein-germany-around-the-time-of-morbillivirus-and-influenza-epidemics
#15
Ursula Siebert, Marion Rademaker, Sophie A Ulrich, Peter Wohlsein, Katrin Ronnenberg, Ellen Prenger-Berninghoff
We present microbiologic findings in harbor seal (phoca; Phoca vitulina ) carcasses collected from the North Sea of Schleswig-Holstein, Germany, 1996-2014, and interpret results in relation to potential variations caused by phocine distemper virus and influenza A virus mass mortalities. We conducted microbiologic investigations on 2,124 tissue samples from lung, liver, kidney, spleen, intestine, and mesenteric lymph nodes from 549 dead harbor seals of the German North Sea. A large variety of bacteria, including potentially pathogenic species such as Bordetella bronchiseptica , Brucella spp...
April 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28131378/multiplex-pcr-based-identification-of-streptococcus-canis-streptococcus-zooepidemicus-and-streptococcus-dysgalactiae-subspecies-from-dogs
#16
M Moriconi, E Acke, D Petrelli, S Preziuso
Streptococcus canis (S. canis), Streptococcus equi subspecies zooepidemicus (S. zooepidemicus) and Streptococcus dysgalactiae subspecies (S. dysgalactiae subspecies) are β-haemolytic Gram positive bacteria infecting animals and humans. S. canis and S. zooepidemicus are considered as two of the major zoonotic species of Streptococcus, while more research is needed on S. dysgalactiae subspecies bacteria. In this work, a multiplex-PCR protocol was tested on strains and clinical samples to detect S. canis, S. dysgalactiae subspecies and S...
February 2017: Comparative Immunology, Microbiology and Infectious Diseases
https://www.readbyqxmd.com/read/28129093/immune-mediated-muscle-diseases-of-the-horse
#17
S A Durward-Akhurst, S J Valberg
In horses, immune-mediated muscle disorders can arise from an overzealous immune response to concurrent infections or potentially from an inherent immune response to host muscle antigens. Streptococcus equi ss. equi infection or vaccination can result in infarctive purpura hemorrhagica (IPH) in which vascular deposition of IgA-streptococcal M protein complexes produces ischemia and complete focal infarction of skeletal muscle and internal organs. In Quarter Horse-related breeds with immune-mediated myositis, an apparent abnormal immune response to muscle antigens results in upregulation of major histocompatibility complex class (MHC) I and II on muscle cell membranes, lymphocytic infiltration of lumbar and gluteal myofibers, and subsequent gross muscle atrophy...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28062002/cd44-enhances-macrophage-phagocytosis-and-plays-a-protective-role-in-streptococcus-equi-subsp-zooepidemicus-infection
#18
Qiang Fu, Zigong Wei, Pingping Xiao, Yaosheng Chen, Xiaohong Liu
Streptococcus equi subsp. zooepidemicus (S. zooepidemicus) is an important pathogen associated with a wide range of diseases in many mammalian species. CD44 is a transmembrane adhesion molecule involved in innate and adaptive immune responses. The aim of this study was to determine the protective role of CD44 during S. zooepidemicus infection. CD44-deficient mice exhibited reduced macrophage accumulation in the bronchoalveolar space and enhanced bacterial outgrowth and dissemination, which resulted in reduced mouse survival...
January 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/27997716/collagen-like-proteins-of-pathogenic-streptococci
#19
REVIEW
Slawomir Lukomski, Beth A Bachert, Flavia Squeglia, Rita Berisio
The collagen domain, which is defined by the presence of the Gly-X-Y triplet repeats, is amongst the most versatile and widespread known structures found in proteins from organisms representing all three domains of life. The streptococcal collagen-like (Scl) proteins are widely present in pathogenic streptococci, including Streptococcus pyogenes, S. agalactiae, S. pneumoniae, and S. equi. Experiments and bioinformatic analyses support the hypothesis that all Scl proteins are homotrimeric and cell wall-anchored...
March 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/27901387/quantification-and-characterization-of-pleural-fluid-in-healthy-dogs-with-thoracostomy-tubes
#20
Germaine C Hung, M Casey Gaunt, Joseph E Rubin, Gregory S Starrak, Sherisse A Sakals
OBJECTIVE To quantify and characterize pleural fluid collected from healthy dogs after placement of a thoracostomy tube (TT). ANIMALS 8 healthy Coonhound-cross dogs (mean ± SD weight, 27.2 ± 1.6 kg). PROCEDURES Thoracic CT of each dog was performed before placement of a TT and daily thereafter for 7 days. Thoracic fluid volume was calculated from CT images. Effusion was aspirated when detected; volume was recorded, and cytologic analysis and bacterial culture were performed. RESULTS Mean ± SD volume of pleural effusion detected by CT was 1...
December 2016: American Journal of Veterinary Research
keyword
keyword
86733
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"