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https://www.readbyqxmd.com/read/29652023/actinomycotic-osteomyelitis-of-palate-masquerading-periapical-pathology-a-rare-case-report
#1
Prachi Baldawa, Pallavi Shirol, Dinraj Kulkarni, Supriya Koshti, Nitu Mishra
Osteomyelitis is an infection that is challenging to manage due to the poor vascularization of bone that favors the proliferation of microorganisms. We report a case of osteomyelitis occurring in endodontically treated teeth in the maxillary palatal region. Clinically and radiographically, it was initially diagnosed as osteomyelitis and was treated accordingly with antibiotics for 1 year with no reported healing. Later, biopsy was done and the findings were consistent with that of chronic osteomyelitis in association with infection by Actinomyces organisms...
March 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29651616/significant-increase-in-cultivation-of-gardnerella-vaginalis-alloscardovia-omnicolens-actinotignum-schaalii-and-actinomyces-spp-in-urine-samples-with-total-laboratory-automation
#2
Sabrina Klein, Dennis Nurjadi, Susanne Horner, Klaus Heeg, Stefan Zimmermann, Irene Burckhardt
While total laboratory automation (TLA) is well established in laboratory medicine, only a few microbiological laboratories are using TLA systems. Especially in terms of speed and accuracy, working with TLA is expected to be superior to conventional microbiology. We compared in total 35,564 microbiological urine cultures with and without incubation and processing with BD Kiestra TLA for a 6-month period each retrospectively. Sixteen thousand three hundred thirty-eight urine samples were analyzed in the pre-TLA period and 19,226 with TLA...
April 13, 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29650638/-actinomyces-cavernous-sinus-infection-a-case-and-systematic-literature-review
#3
Michal Lubomski, James Dalgliesh, Kenneth Lee, Omprakash Damodaran, Genevieve McKew, Stephen Reddel
A 63-year-old man presented with a 2-month history of progressive right-sided exophthalmos, painful ophthalmoplegia and fevers. As more features developed, he was diagnosed with giant cell arteritis then Tolosa-Hunt syndrome and transiently responded to corticosteroids. A bland cerebrospinal fluid and highly metabolically active brain (18 F)-fluoro-D-glucose-positron emission tomography suggested lymphoma. Biopsy of the mass showed sulphur granules with Gram-positive filamentous bacteria with Actinomyces -like colonies...
April 12, 2018: Practical Neurology
https://www.readbyqxmd.com/read/29617682/phenalen-1-one-mediated-antimicrobial-photodynamic-therapy-and-chlorhexidine-applied-to-a-novel-caries-biofilm-model
#4
Fabian Cieplik, Fabian Wimmer, Denise Muehler, Thomas Thurnheer, Georgios N Belibasakis, Karl-Anton Hiller, Tim Maisch, Wolfgang Buchalla
Antimicrobial photodynamic therapy (aPDT) may be useful as a supportive antimicrobial measure for caries-active subjects. In this study, the antimicrobial efficacy of aPDT with a phenalen-1-one photosensitizer was evaluated in a novel in vitro biofilm model comprising Actinomyces naeslundii, Actinomyces odontolyticus, and Streptococcus mutans and was compared to chlorhexidine. The proposed biofilm model allows high-throughput screening for antimicrobial efficacy while exhibiting a differentiated response to different antimicrobial approaches...
April 4, 2018: Caries Research
https://www.readbyqxmd.com/read/29616615/assessment-of-bacterial-contamination-of-lipstick-using-pyrosequencing
#5
So Y Lee, Si Y Lee
As soon as they are exposed to the environment, cosmetics become contaminated with microorganisms, and this contamination accumulates with increased use. In this study, we employed pyrosequencing to investigate the diversity of bacteria found on lipstick. Bacterial DNA was extracted from 20 lipstick samples and mixed in equal ratios for pyrosequencing analysis. As a result, 105 bacterial genera were detected, four of which ( Leifsonia , Methylobacterium , Streptococcus , and Haemophilus ) were predominant in 92% of the 19,863 total sequence reads...
July 2017: Journal of Cosmetic Science
https://www.readbyqxmd.com/read/29604528/intraabdominal-actinomycosis-resulting-in-a-difficult-to-diagnose-intraperitoneal-mass-a-case-report
#6
Naoto Tsujimura, Hiroyoshi Takemoto, Yujiro Nakahara, Masaki Wakasugi, Takashi Matsumoto, Kiyonori Nishioka, Kou Takachi, Satoshi Oshima, Kyotaro Yoshida
INTRODUCTION: Actinomycosis is a chronic suppurative granulomatous disease caused by Actinomyces israelii. Preoperative confirmed diagnosis is very difficult, so most cases are diagnosed preoperatively as malignant tumors. We report a case of intraabdominal actinomycosis which was difficult to diagnose preoperatively. PRESENTATION OF THE CASE: A woman, 60 years old, experienced discomfort in her lower right abdomen. She complained of nausea and anorexia and visited our hospital...
March 21, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29594341/anaerobic-bacteria-in-wastewater-treatment-plant
#7
Marcin Cyprowski, Agata Stobnicka-Kupiec, Anna Ławniczek-Wałczyk, Aleksandra Bakal-Kijek, Małgorzata Gołofit-Szymczak, Rafał L Górny
PURPOSE: The objective of this study was to assess exposure to anaerobic bacteria released into air from sewage and sludge at workplaces from a wastewater treatment plant (WWTP). METHODS: Samples of both sewage and sludge were collected at six sampling points and bioaerosol samples were additionally collected (with the use of a 6-stage Andersen impactor) at ten workplaces covering different stages of the technological process. Qualitative identification of all isolated strains was performed using the biochemical API 20A test...
March 28, 2018: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/29582826/actinomycetes-canaliculitis-complicating-congenital-nasolacrimal-duct-obstruction-in-an-infant
#8
Akshay Gopinathan Nair, Nayana A Potdar, Swaranjali S Gore, Amol Y Ganvir, Monisha K Apte, Trupti R Marathe, Chaya A Kumar, Chhaya A Shinde
Actinomyces israelii is a Gram-positive anaerobic organism commonly associated with canaliculitis in adults. Pediatric canaliculitis is relatively rare, especially in infancy. We report the case of an 11-month-old boy who presented with co-existing canaliculitis and congenital nasolacrimal obstruction. The presenting signs included epiphora, discharge, conjunctival congestion, and matting of lashes. On examination, punctual pouting, regurgitation, and yellow canaliculiths were noted. A punctoplasty and canalicular curettage were performed along with nasolacrimal probing...
April 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29578101/diagnostic-accuracy-of-multiplex-real-time-pcr-approaches-in-compared-with-cultivation-based-detection-methods-monitoring-the-endopathogenic-microbiota-pre-and-post-photo-activated-disinfection
#9
Maryam Pourhajibagher, Abbas Bahador
BACKGROUND: Several microbial species that have been implicated in the pathogenesis of endodontic diseases colonize the infected root canal system. Since the complete removal of endopathogenic agents is essential in endodontic infections therapy, photo-activated disinfection (PAD) is suggested as an alternative method to traditional antimicrobial therapy. Recent studies reported that the molecular methods with low sensitivity and high efficiency to identify fastidious anaerobic endopathogenic microbiota can be replaced by the cultivation-based approaches...
March 22, 2018: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29566581/investigation-of-bacteremia-after-debonding-procedures
#10
Yasin Akbulut, Merve Goymen, Yasemin Zer, Ayse Buyuktas Manay
OBJECTIVE: The purpose of this study is to investigate the effect of debonding procedures after completion of orthodontic treatments on bacteremia. MATERIALS AND METHODS: Twenty-eight patients who were treated with fixed orthodontic treatment at the Faculty of Dentistry's Department of Orthodontics at Gaziantep University and who had an indication of debonding were selected for this study, and blood samples were taken from these patients at different times and examined for bacteremia...
March 23, 2018: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/29559963/the-impact-of-maltitol-sweetened-chewing-gum-on-the-dental-plaque-biofilm-microbiota-composition
#11
Bart J F Keijser, Tim J van den Broek, Dagmar E Slot, Lodewic van Twillert, Jolanda Kool, Clémentine Thabuis, Michel Ossendrijver, Fridus A van der Weijden, Roy C Montijn
Background: The oral cavity harbors a complex microbial ecosystem, intimately related to oral health and disease. The use of polyol-sweetened gum is believed to benefit oral health through stimulation of salivary flow and impacting oral pathogenic bacteria. Maltitol is often used as sweetener in food products. This study aimed to establish the in vivo effects of frequent consumption of maltitol-sweetened chewing gum on the dental plaque microbiota in healthy volunteers and to establish the cellular and molecular effects by in vitro cultivation and transcriptional analysis...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29559113/meta-analysis-of-the-lung-microbiota-in-pulmonary-tuberculosis
#12
Bo-Young Hong, Joseph N Paulson, O Colin Stine, George M Weinstock, Jorge L Cervantes
The lung microbiota has received less attention compared to other body sites, in part because its study carries special technological difficulties related to obtaining reliable samples as compared to other body niches. The limited number of studies on the sputum microbiota on TB patients and controls available so far have reported inconsistent, and sometimes, contradictory results. Aiming to clarify if changes in the lung microbiota composition are associated with pulmonary TB, we performed a meta-analysis of available data on microbiota of the lower respiratory tract in TB patients and healthy controls...
March 2018: Tuberculosis
https://www.readbyqxmd.com/read/29556430/bacterial-lactase-genes-diversity-in-intestinal-mucosa-of-mice-with-dysbacterial-diarrhea-induced-by-antibiotics
#13
Chengxing Long, Yawei Liu, Lu He, Qinquan Tan, Zizhen Yu, Nenqun Xiao, Zhoujin Tan
The current study aimed at exploring the diversity of bacterial lactase genes in the intestinal mucosa of mice with dysbacterial diarrhea induced by antibiotics and to provide experimental basis for antibiotics-induced diarrhea. Mice model of dysbacterial diarrhea was established by gastric perfusion with mixture of cephradine capsules and gentamicin sulfate (23.33 mL kg-1  d-1 ), twice a day and continuously for 5 days. Intestinal mucosa from jejunum to ileum was collected, and bacterial metagenomic DNA was extracted for Miseq metagenome sequencing to carry out diversity analysis...
March 2018: 3 Biotech
https://www.readbyqxmd.com/read/29556407/-enterococcus-timonensis-sp-nov-actinomyces-marseillensis-sp-nov-leptotrichia-massiliensis-sp-nov-actinomyces-pacaensis-sp-nov-actinomyces-oralis-sp-nov-actinomyces-culturomici-sp-nov-and-gemella-massiliensis-sp-nov-new-bacterial-species-isolated-from-the-human
#14
M D Mbogning Fonkou, M Bilen, F Cadoret, P-E Fournier, G Dubourg, D Raoult
We report the main characteristics of 'Enterococcus timonensis' strain Marseille-P2817T (CSUR P2817), 'Leptotrichia massiliensis' sp. nov., strain Marseille-P3007T (CSUR P3007), 'Actinomyces marseillensis' sp. nov., strain Marseille-P2818T (CSUR P2818), 'Actinomyces pacaensis' sp. nov., strain Marseille-P2985T (CSUR P2985), 'Actinomyces oralis' sp. nov., strain Marseille-P3109T (CSUR P3109), 'Actinomyces culturomici' sp. nov., strain Marseille-P3561T (CSUR P3561) and 'Gemella massiliensis' sp. nov., strain Marseille-P3249T (CSUR P3249) which were isolated from human sputum samples...
March 2018: New Microbes and New Infections
https://www.readbyqxmd.com/read/29552249/craniofacial-actinomyces-osteomyelitis-evolving-from-sinusitis
#15
Joseph Y Shen, Neal D Futran, Maya G Sardesai
Craniofacial Actinomyces osteomyelitis progression is rare, as patients are soon treated. A 56-year-old male smoker presented with sinusitis and was managed medically. This patient failed to follow up and presented 1 year later with erosive bony disease. He was managed medically and surgically; however, his disease evolved to include his midface, skull base, and cranium. He underwent staged debridement and free tissue reconstruction. His disease is controlled but not cured. The literature includes case reports and small series describing limited disease treated successfully with surgical and medical management...
February 2018: Radiology Case Reports
https://www.readbyqxmd.com/read/29549283/species-level-description-of-the-human-ileal-bacterial-microbiota
#16
Heidi Cecilie Villmones, Erik Skaaheim Haug, Elling Ulvestad, Nils Grude, Tore Stenstad, Adrian Halland, Øyvind Kommedal
The small bowel is responsible for most of the body's nutritional uptake and for the development of intestinal and systemic tolerance towards microbes. Nevertheless, the human small bowel microbiota has remained poorly characterized, mainly owing to sampling difficulties. Sample collection directly from the distal ileum was performed during radical cystectomy with urinary diversion. Material from the ileal mucosa were analysed using massive parallel sequencing of the 16S rRNA gene. Samples from 27 Caucasian patients were included...
March 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29547886/streptococcus-gordonii-challisin-protease-is-required-for-sensing-cell-cell-contact-with-actinomyces-oris
#17
Waleed K Mohammed, Natalio Krasnogor, Nicholas S Jakubovics
The ability of microorganisms to regulate gene expression is thought to be critical for survival and growth during the development of polymicrobial biofilms such as dental plaque. The commensal dental plaque colonizer, Streptococcus gordonii, responds to cell-cell contact (coaggregation) with Actinomyces oris by regulating > 20 genes, including those involved in arginine biosynthesis. We hypothesized that an S. gordonii extracellular protease is critical for sensing by providing amino acids that modulate gene expression...
March 14, 2018: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/29537663/effect-of-compliance-during-periodontal-maintenance-therapy-on-levels-of-bacteria-associated-with-periodontitis-a-6-year-prospective-study
#18
Fernando Oliveira Costa, Thaís Riberal Vieira, Sheila Cavalca Cortelli, Luís Otávio Miranda Cota, José Eustáquio Costa, Maria Cássia Ferreira Aguiar, José Roberto Cortelli
BACKGROUND: It is well established that regular compliance during periodontal maintenance therapy (PMT) maintains the stability of periodontal clinical parameters obtained after active periodontal therapy (APT). However, compliance during PMT has not yet been related to subgingival bacterial levels. Thus, this study followed individuals in PMT over 6 years and longitudinally evaluated the effects of compliance on periodontitis-associated bacterial levels and its relation to periodontal status...
March 14, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/29521212/linking-antimicrobial-potential-of-natural-products-derived-from-aquatic-organisms-and-microbes-involved-in-alzheimer-s-disease-a-review
#19
Dejan Stojkovic, Marina Kostic, Marija Smiljkovic, Milena Aleksic, Perica Vasiljevic, Milos Nikolic, Marina Sokovic
The following review is oriented towards microbes linked to Alzheimer's disease (AD) and antimicrobial effect of compounds and extracts derived from aquatic organisms against specific bacteria, fungi and viruses which were found previously in patients suffering from AD. Major group of microbes linked to AD include bacteria: Chlamydia pneumoniae, Helicobacter pylori, Porphyromonas gingivalis, Fusobacterium nucleatum, Prevotella intermedia, Actinomyces naeslundii, spirochete group; fungi: Candida sp., Cryptococcus sp...
March 8, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29520798/influence-of-periodontal-treatment-on-subgingival-and-salivary-microbiotas
#20
Daniel Belstrøm, Maria Anastasia Grande, Maria Lynn Sembler-Møller, Nikolai Kirkby, Sean L Cotton, Bruce J Paster, Palle Holmstrup
BACKGROUND: The purpose of this study was to characterize and compare subgingival and salivary microbiotas before and after periodontal treatment to learn if any changes of the subgingival microbiota were reflected in saliva. We tested the hypothesis that salivary levels of specific periopathogens correlate with corresponding subgingival levels before and after periodontal treatment. METHODS: Twenty-five patients with generalized chronic periodontitis completed the study...
February 19, 2018: Journal of Periodontology
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