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Anaerobe

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https://www.readbyqxmd.com/read/28733230/clostridium-perfringens-and-c-difficile-in-parvovirus-positive-dogs
#1
Rodrigo Otávio Silveira Silva, Fernanda Alves Dorella, Henrique Cesar Pereira Figueiredo, Érica Azevedo Costa, Vanessa Pelicia, Bruna Letícia Devidé Ribeiro, Marcio Garcia Ribeiro, Antonio Carlos Paes, Jane Megid, Francisco Carlos Faria Lobato
The aim of this study was to investigate Clostridium difficile and Clostridium perfringens in 82 diarrheic dogs positive for canine parvovirus type 2 (CPV). Enterotoxigenic C. perfringens type A was isolated from three (3.6%) dogs. One (1.2%) strain was also positive for NetE- and NetF-encoding genes, which are commonly associated with diarrhea in dogs. Toxigenic C. difficile was isolated from one animal (1.2%), which was also positive for A/B toxins. The present study identified C. difficile and C. perfringens infection in CPV-positive dogs...
July 18, 2017: Anaerobe
https://www.readbyqxmd.com/read/28687280/prevalence-and-characteristics-of-clostridium-perfringens-and-clostridium-difficile-in-dogs-and-cats-attended-in-diverse-veterinary-clinics-from-the-madrid-region
#2
Sergio Álvarez-Pérez, José L Blanco, Celine Harmanus, Ed J Kuijper, Marta E García
Despite extensive research on the epidemiology of pathogenic clostridia in dogs and cats, most published studies focus on a selected animal population and/or a single veterinary medical centre. We assessed the burden of Clostridium perfringens and C. difficile shedding by small animals in 17 veterinary clinics located within the Madrid region (Spain) and differing in size, number and features of animals attended and other relevant characteristics. In addition, we studied the genetic diversity and antibiotic susceptibility of recovered isolates...
July 5, 2017: Anaerobe
https://www.readbyqxmd.com/read/28684342/development-of-a-real-time-pcr-method-for-quantification-of-prevotella-histicola-from-the-gut
#3
Baskar Balakrishnan, David Luckey, Eric Marietta, Melissa Karau, Robin Patel, Joseph Murray, Veena Taneja
We designed species-specific primers and developed a qPCR method for enumerating P. histicola from intestinal samples. The two designed primer sets showed specificity for the target 16S rRNA gene of P. histicola. The absolute qPCR method was sensitive to quantify as few as 10(3) colony-forming units (CFU) in the gut.
July 3, 2017: Anaerobe
https://www.readbyqxmd.com/read/28679108/withdrawn-conversion-of-food-processing-wastes-to-biofuel-using-clostridia
#4
Mohamed Hemida Abd-Alla, Abdel-Naser Ahmed Zohri, Abdel-Wahab Elsadek El-Enany, Shimaa Mohamed Ali
This article has been withdrawn: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been withdrawn at the request of the editor and publisher. The publisher regrets that an error occurred which led to the premature publication of this paper. This error bears no reflection on the article or its authors. The publisher apologizes to the authors and the readers for this unfortunate error.
July 2, 2017: Anaerobe
https://www.readbyqxmd.com/read/28673848/first-described-case-of-prosthetic-joint-infection-with-clostridium-disporicum
#5
Joseph A McBride, Alana K Sterkel, William M Rehrauer, Jeannina A Smith
An orthopedic hardware infection with Clostridium disporicum is described. C. disporicum is a gram positive anaerobic bacillus which can contain two subterminal spores. C. disporicum had not previously been reported in musculoskeletal infections. Gram stains demonstrating gram positive bacilli with two subterminal spores should alert practitioners to the possibility of C. disporicum infection.
July 1, 2017: Anaerobe
https://www.readbyqxmd.com/read/28669864/is-clostridium-difficile-infection-a-risk-factor-for-subsequent-bloodstream-infection
#6
Robert J Ulrich, Kavitha Santhosh, Jill A Mogle, Vincent B Young, Krishna Rao
BACKGROUND: Clostridium difficile infection (CDI) is a common nosocomial diarrheal illness increasingly associated with mortality in United States. The underlying factors and mechanisms behind the recent increases in morbidity from CDI have not been fully elucidated. Murine models suggest a mucosal barrier breakdown leads to bacterial translocation and subsequent bloodstream infection (BSI). This study tests the hypothesis that CDI is associated with subsequent BSI in humans. METHODS: We conducted a retrospective cohort study on 1132 inpatients hospitalized >72 h with available stool test results for toxigenic C...
June 29, 2017: Anaerobe
https://www.readbyqxmd.com/read/28668708/a-case-of-severe-empyema-with-acute-respiratory-distress-syndrome-caused-by-slackia-exigua-requiring-veno-venous-extracorporeal-membrane-oxygenation
#7
M Y Man, H P Shum, Alan Wu, R A Lee, W W Yan
Slackia exigua (S. exigua) is an obligatory anaerobic coccobacillus under the family of Coriobacteriaceae. It is a rare cause of pyogenic extraoral infections. We report a 58-year-old lady with good past health presented with fulminant community-acquired pneumonia causing acute respiratory distress syndrome caused by S. exigua requiring veno-venous extra-corporeal membrane oxygenation (VV-ECMO). Bacterial identification can be challenging and often require 16 S rRNA and MALDI-TOF MS. The patient was treated with amoxicillin-clavulanic acid according to sensitivity and made significant recovery...
June 28, 2017: Anaerobe
https://www.readbyqxmd.com/read/28668707/dose-response-effects-of-dietary-pequi-oil-on-fermentation-characteristics-and-microbial-population-using-a-rumen-simulation-technique-rusitec
#8
Andrea Camacho Duarte, Zoey Durmic, Philip E Vercoe, Alexandre V Chaves
The effect of increasing the concentration of commercial pequi (Caryocar brasiliense) oil on fermentation characteristics and abundance of methanogens and fibrolityc bacteria was evaluated using the rumen simulation technique (Rusitec). In vitro incubation was performed over 15 days using a basal diet consisting of ryegrass, maize silage and concentrate in equal proportions. Treatments consisted of control diet (no pequi oil inclusion, 0 g/kg DM), pequi dose 1 (45 g/kg DM), and pequi dose 2 (91 g/kg DM)...
June 28, 2017: Anaerobe
https://www.readbyqxmd.com/read/28668254/corrigendum-to-maldi-tof-ms-is-more-accurate-than-vitek-ii-anc-card-and-api-rapid-id-32-a-system-for-the-identification-of-clostridium-species-anaerobe-40-2016-73-75
#9
Young Jin Kim, Si Hyun Kim, Hyun-Jung Park, Hae-Geun Park, Dongchul Park, Sae Am Song, Hee Joo Lee, Dongeun Yong, Jun Yong Choi, Joong-Ki Kook, Hye Ran Kim, Jeong Hwan Shin
No abstract text is available yet for this article.
June 28, 2017: Anaerobe
https://www.readbyqxmd.com/read/28666877/microbial-analysis-of-root-canal-and-periradicular-lesion-associated-to-teeth-with-endodontic-failure
#10
R S Pereira, V A A Rodrigues, W T Furtado, S Gueiros, G S Pereira, M J Avila-Campos
The quantification of ten microorganisms at the root ends and in the surrounding periradicular lesions was performed. Thirty 3 mm samples root ends and 30 samples of the surrounding chronic periapical infection were collected during apical microsurgery. Samples were triturated, and the bacterial DNA was obtained. The bacterial quantification was performed by using the SYBR Green system. At least one microorganism was detected in all patients. In both the root end and periapical samples, Fusobacterium nucleatum (71...
June 27, 2017: Anaerobe
https://www.readbyqxmd.com/read/28655582/prevalence-of-clostridium-perfringens-toxin-in-patients-suspected-of-having-antibiotic-associated-diarrhea
#11
Young Jin Kim, Si Hyun Kim, Junggu Ahn, Soongmoon Cho, Dongchun Kim, Kwanghyun Kim, Heegun Lee, Hyunwoo Son, Hee Joo Lee, Dongeun Yong, Jun Yong Choi, Hye Ran Kim, Jeong Hwan Shin
BACKGROUND: Although Clostridium perfringens has been reported as a cause of antibiotic-associated diarrhea (AAD), it is uncommon to detect this pathogen in clinical microbiology laboratories in Korea. The aim of this study was to investigate the prevalence of C. perfringens toxin in patients suspected of having AAD. METHODS: A total of 135 stool specimens submitted to a clinical microbiology laboratory for C. difficile toxin assay were tested. We tried to detect both C...
June 26, 2017: Anaerobe
https://www.readbyqxmd.com/read/28655581/clinical-and-molecular-characteristics-of-community-acquired-clostridium-difficile-infections-in-comparison-with-those-of-hospital-acquired-c-%C3%A2-difficile
#12
Soon Sung Kwon, Jung Lim Gim, Myung Sook Kim, Heejung Kim, Jun Yong Choi, Dongeun Yong, Kyungwon Lee
Community-acquired Clostridium difficile infection (CA-CDI) is a growing concern. CA-CDI differs from hospital-acquired C. difficile infection (HA-CDI) in its epidemiology, risk factors, severity, and outcomes. In this study, we investigated C. difficile infections in a tertiary care hospital in Seoul, Korea, and compared the CA-CDI and HA-CDI cases diagnosed in the same period. Total 593 cases were confirmed as CDI in 2014, of which CA-CDI accounted for 68 (11.5%) of the total CDI cases. Compared with HA-CDI, the mean age of CA-CDI cases was lower than that of HA-CDI (42...
June 24, 2017: Anaerobe
https://www.readbyqxmd.com/read/28648472/oesophageal-pleural-fistula-presenting-with-parvimonas-micra-infection-causing-cervical-and-brain-abscesses
#13
REVIEW
Anan Shtaya, Helmut Schuster, Peter Riley, Kathryn Harris, Samantha Hettige
Parvimonas micra (P. micra) infections causing spinal cord compression are extremely rare. We report an occult oesophageal pleural fistula presenting with spinal epidural and brain abscesses resulting in severe neurological deficits caused by P. micra. Molecular detection proved to be instrumental in identifying the causative pathogen. Essential management with decompression, drainage, antibiotics and fistula repair lead to a good outcome.
June 23, 2017: Anaerobe
https://www.readbyqxmd.com/read/28648471/optimisation-of-continuous-gas-fermentation-by-immobilisation-of-acetate-producing-acetobacterium-woodii
#14
Franziska Steger, Lydia Rachbauer, Matthias Windhagauer, Lucy F R Montgomery, Günther Bochmann
Hydrogen from water electrolysis is often suggested as a way of storing the excess energy from wind and solar power plants. However, unlike natural gas, hydrogen is difficult to store and distribute. One solution is to convert the hydrogen into other fuels or bulk chemicals. In this study we investigated fermentation in which homoacetogenic clostridia apply the Wood-Ljungdahl pathway to generate acetate from H2 and CO2. Acetate can be used as a bulk chemical or further transformed into biofuels. Autotrophic growth with CO2 as the sole carbon source is slow compared to heterotrophic growth, so the aim of this work was to improve continuous gas fermentation by immobilising the acetate-producing clostridia, thus preventing their wash out from the bioreactor...
June 22, 2017: Anaerobe
https://www.readbyqxmd.com/read/28647397/actinomyces-radicidentis-and-actinomyces-haliotis-coccoid-actinomyces-species-isolated-from-the-human-oral-cavity
#15
Rolf Claesson, Ulf Sjögren, Anders Esberg, Malin Brundin, Margareta Granlund
There are few reports on the bacterial species Actinomyces radicidentis in the literature. In this study, putative A. radicidentis isolates were collected from 16 root canal samples from 601 examined patients. The isolates were examined by biochemical tests, 16S rRNA gene sequencing, Arbitrarily-primed (AP-) PCR, antibiotic susceptibility testing, and MALDI-TOF analyses. In parallel, two A. radicidentis reference strains and two putative A. radicidentis isolates from United Kingdom were tested. Sixteen of the 18 isolates were confirmed as A...
June 21, 2017: Anaerobe
https://www.readbyqxmd.com/read/28645479/impact-of-the-nap-1-strain-on-disease-severity-mortality-and-recurrence-of-healthcare-associated-clostridium-difficile-infection
#16
Karri A Bauer, Jessica E W Johnston, Eric Wenzler, Debra A Goff, Charles H Cook, Joan-Miquel Balada-Llasat, Preeti Pancholi, Julie E Mangino
OBJECTIVES: Studies are conflicting regarding the association of the North American pulsed-field gel electrophoresis type 1 (NAP1) strain in Clostridium difficile infection (CDI) and outcomes. We evaluated the association of NAP1 with healthcare-associated CDI disease severity, mortality, and recurrence at our academic medical center. METHODS: Healthcare-associated CDI cases were identified from November 1, 2011 through January 31, 2013. Multivariable regression models were used to evaluate the associations of NAP1 with severe disease (based on the Hines VA severity score index), mortality, and recurrence...
June 21, 2017: Anaerobe
https://www.readbyqxmd.com/read/28629947/temporal-microbiota-changes-of-high-protein-diet-intake-in-a-rat-model
#17
Chunlong Mu, Yuxiang Yang, Zhen Luo, Weiyun Zhu
Alterations of specific microbes serve as important indicators that link gut health with specific diet intake. Although a six-week high-protein diet (45% protein) upregulates the pro-inflammatory response and oxidative stress in colon of rats, the dynamic alteration of gut microbiota remains unclear. To dissect temporal changes of microbiota, dynamic analyses of fecal microbiota were conducted using a rat model. Adult rats were fed a normal-protein diet or an HPD for 6 weeks, and feces collected at different weeks were used for microbiota and metabolite analysis...
June 17, 2017: Anaerobe
https://www.readbyqxmd.com/read/28627377/mikania-glomerata-sprengel-extract-and-its-major-compound-ent-kaurenoic-acid-display-activity-against-bacteria-present-in-endodontic-infections
#18
Dora Lúcia Carrara Moreti, Luís Fernando Leandro, Thaís da Silva Moraes, Monique Rodrigues Moreira, Rodrigo Cassio Sola Veneziani, Sergio Ricardo Ambrosio, Brenda Paula Figueiredo Almeida Gomes, Carlos Henrique Gomes Martins
The search for new, effective and safe antimicrobial compounds from plant sources has continued to play an important role in the maintenance of human health since ancient times. Such compounds can be used to help to eradicate microorganisms from the root canal system, preventing/healing periapical diseases. Mikania glomerata (Spreng.), commonly known as "guaco," is a native climbing plant from Brazil that displays a wide range of pharmacological properties. Many of its activities have been attributed to its phytochemical composition, which is mainly composed of diterpenes, such as ent-kaurenoic acid (KA)...
June 13, 2017: Anaerobe
https://www.readbyqxmd.com/read/28610999/changes-in-faecal-bacteria-during-fattening-in-finishing-swine
#19
Tomomi Ban-Tokuda, Sakiko Maekawa, Takehiro Miwa, Sou Ohkawara, Hiroki Matsui
Body fat accumulation in mice and human is linked to the percentage of Firmicutes and Bacteroidetes, two bacterial phyla dominant in the large intestine. However, little is known about the relationship between the composition of the gut microbiota and fattening in pig. This study aimed to investigate the abundance of Firmicutes, Bacteroidetes, and Bacteroides, which is the major genus within Bacteroidetes, in porcine faeces during fattening. Ten 4-month-old crossbred pigs were given free access to commercial feed for fattening and water for 14 weeks...
June 10, 2017: Anaerobe
https://www.readbyqxmd.com/read/28610998/support-material-dictates-the-attached-biomass-characteristics-during-the-immobilization-process-in-anaerobic-continuous-flow-packed-bed-bioreactor
#20
Jasmina Kerčmar, Albin Pintar
Hydrogen is considered to be an ideal energy alternative to replace environmentally burdensome fossil fuels. For its long-term production the immobilized biofilm system is the most promising and to choose the right support material the most challenging. In this respect, the anaerobic up-flow bioreactors packed with four most used support materials (polyethylene, polyurethane, activated carbon and expanded clay) were tested to investigate the crucial bacteria sensitive period-the immobilization process. Seven-day-operation was necessary and sufficient to reach metabolic and microbial stability regardless of support material used...
June 10, 2017: Anaerobe
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