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Oral Microbiology

Huma Siddiqui, Tsute Chen, Ardita Aliko, Piotr M Mydel, Roland Jonsson, Ingar Olsen
BACKGROUND: Reduced salivation is considered a major clinical feature of most but not all cases of primary Sjögren's syndrome (pSS). Reduced saliva flow may lead to changes in the salivary microbiota. These changes have mainly been studied with culture that typically recovers only 65% of the bacteria present. OBJECTIVE: This study was to use high throughput sequencing, covering both cultivated and not-yet-cultivated bacteria, to assess the bacterial microbiota of whole saliva in pSS patients with normal salivation...
2016: Journal of Oral Microbiology
Rusheng Chew, Andrew Dorman, Marion L Woods
OBJECTIVE: To describe the clinical features and risk factors of and optimal antifungal therapy for Purpureocillium lilacinum keratitis. DESIGN: Retrospective case series in a quaternary referral hospital setting. METHODS: Comprehensive chart review of patients diagnosed with P. lilacinum keratitis in the past 10 years. PARTICIPANTS: Four patients were identified. All were aged 60 years or greater, with none having prior ocular trauma...
October 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
Hongyu He, Lirong Jin, Minjie Ju, Guowei Tu, Zhe Luo
BACKGROUND: Acute transverse myelitis is uncommon and presumably results from an autoimmune process or a preceding infection. Most cases of bacterial myelitis are due to hematogenous dissemination from urinary or respiratory tract infections or contiguous spreading from a neighboring infected structure. A psoas abscess rarely spreads to higher levels of the spinal cord. No cases of acute cervical myelitis due to a psoas abscess have been previously reported. CASE PRESENTATION: A 34-year-old man was transferred to our hospital due to progressive muscle weakness, sensory deficits and severe hypotension...
October 18, 2016: BMC Infectious Diseases
Peter Nilsson
A number of chronic disease conditions tend to cluster in families with an increased risk in first-degree relatives, but also an increased risk in second-degree relatives. This fact is most often referred to as the heritability (heredity) of these diseases and explained by the influence of genetic factors, or shared environment, even if the more specific details or mechanism leading to disease are not known. New methods have to be explored in screening studies and register linkage studies to define and measure consequences of a positive family history of disease...
September 2016: Journal of Hypertension
Tiemei Zhao, Liang-An Chen, Ping Wang, Guizhen Tian, Feng Ye, Huili Zhu, Bei He, Baiying Zhang, Changzhou Shao, Zhijun Jie, Xiwen Gao, Dongxia Wang, Weidong Song, Zhijie Pan, Jin Chen, Xingyi Zhang, Zhancheng Gao, Ping Chen, Youning Liu
BACKGROUND: To compare 5-day regimen of levofloxacin 750 mg IV daily with 7-14-day conventional regimen of levofloxacin 500 mg intravenous to oral (IV/PO) daily for treatment of community-acquired pneumonia (CAP) in Chinese population. METHODS: This was a non-inferiority study to assess the difference of clinical efficacy at the end of treatment (EOT) between two regimens. Adult CAP patients with CURB-65 score 0-2 were enrolled from 17 hospitals in China from November 2012 to July 2014...
September 2016: Journal of Thoracic Disease
G J Roode, K-W Bütow, S Naidoo
To identify the pathogenic micro-organisms that had colonised preoperatively in clefts in the soft palate and oro-nasopharynx, we retrospectively studied the preoperative microbiological profiles of 200 infants who had had primary repair of all types of cleft in the soft palate. Data from a private practice that specialises in the repair of facial clefts were extracted randomly from patients' files. We analysed the results of the culture of preoperative swabs taken from clefts in the soft palate and oro-nasopharynx, and the resistance profile of organisms towards various antibiotics...
October 10, 2016: British Journal of Oral & Maxillofacial Surgery
Andrés Felipe Cartagena, Luís Antonio Esmerino, Rogerio Polak-Junior, Sibelli Olivieri Parreiras, Milton Domingos Michél, Paulo Vitor Farago, Nara Hellen Campanha
OBJECTIVE: The purpose of this study was to develop a new oral drug delivery system by incorporating polymeric miconazole nitrate (MN) microparticles on an experimental antifungal denture adhesive (DA). METHODS: Spray drying Eudragit L-100 (E) and Gantrez MS-955 (G) MN-microparticles were incorporated in DA. DAE1, DAG1, DAEG1, DAE2, DAG2, DAEG2 groups were obtained from the combination of polymers used in MN-microparticles (E, G and EG) and concentration of MN into DA (1, for 1% and 2, for 2%)...
October 10, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
Haiying Sun, Lillian Ting, Surendra Machineni, Jens Praestgaard, Andreas Kuemmell, Daniel S Stein, Gangadhar Sunkara, Steven J Kovacs, Stephen Villano, S Ken Tanaka
Omadacycline is a first in class aminomethylcycline antibiotic with microbiological activity against Gram-positive and Gram-negative aerobes and anaerobes, and atypical bacteria that is being developed for the treatment of acute bacterial skin and skin structure infections (ABSSSI) and community-acquired bacterial pneumonia (CABP). The bioavailability of a Phase 3 tablet formulation relative to intravenous (IV) administration (and of other oral formulations relative to the Phase 3 tablet) was investigated in an open-label, randomized, four-period, crossover study in healthy subjects age 18-50 years...
October 10, 2016: Antimicrobial Agents and Chemotherapy
Takuya Sadahira, Koichiro Wada, Motoo Araki, Ayano Ishii, Atsushi Takamoto, Yasuyuki Kobayashi, Masami Watanabe, Toyohiko Watanabe, Yasutomo Nasu, Hiromi Kumon
BACKGROUND: Fluoroquinolone-non-susceptible Escherichia coli isolated from patients with acute uncomplicated cystitis are a matter of increasing concern. Cefditoren pivoxil is an oral, β-lactamase-stable, extended-spectrum cephalosporin that is effective against fluoroquinolone-non-susceptible bacteria. OBJECTIVES: To evaluate the clinical and microbiological efficacies of cefditoren pivoxil against acute uncomplicated cystitis and to determine the optimal duration of cefditoren pivoxil treatment...
October 12, 2016: Journal of Antimicrobial Chemotherapy
Philippa C Matthews, Lucinda K Barrett, Stephanie Warren, Nicole Stoesser, Mel Snelling, Matthew Scarborough, Nicola Jones
BACKGROUND: Fosfomycin is increasingly called upon for the treatment of multi drug-resistant (MDR) organisms causing urinary tract infection (UTI). We reviewed oral fosfomycin use for UTI treatment in a large UK hospital. The primary goal was to audit our clinical practice against current national guidelines. Secondary aims were to identify factors associated with treatment failure, and to investigate the potential for using fosfomycin in patients with co-morbidities. METHODS: We retrospectively studied 75 adult patients with UTI who received 151 episodes of treatment with fosfomycin from March 2013 to June 2015...
October 11, 2016: BMC Infectious Diseases
Winai Chaidaroon, Sumet Supalaset, Napaporn Tananuvat, Nongnuch Vanittanakom
PURPOSE: To report a rare case of keratitis infected by Bipolaris hawaiiensis. METHODS: A patient who was diagnosed as fungal keratitis caused by B. hawaiiensis was retrospectively reviewed for history, clinical characteristics, risk factors, laboratory findings, treatments, and outcomes. RESULTS: A 63-year-old man with a history of trauma and saw dust in the left eye presented with a corneal ulcer. Eye examination revealed whitish infiltration with a feathery edge and small brownish deposits in the anterior stroma of the left cornea...
May 2016: Case Reports in Ophthalmology
Maïté Micaelo, Pascal Rasmy, Marlène Amara, Juliette Lambert, Aymeric Coutard, Béatrice Pangon
Erysipelothrix rhusiopathiae, a Gram-positive bacillus, is reported to cause for cutaneous infections and endocarditis. We report a case of E. rhusiopathiae bacteremia without severe clinical illness. The patient, a 74-year-old man, is suffering from a chronic lymphoid leukemia (LLC). Following a trauma, the patient developed a bruise on the left inch. Because the site of shock seemed clinically infected, oral amoxicilline-acid clavulanic (AAC) treatment was started after withdrawn 1 set of blood cultures. These blood culture specimens yielded a Gram-positive bacillus identified as E...
October 1, 2016: Annales de Biologie Clinique
Rasmus Hare Jensen
Antifungal drug resistance is a multifaceted clinical challenge, and when present, a primary cause of treatment failure in patients with severe fungal infections. Changing epidemiology, increasing resistance rates and a narrow antifungal armamentarium may further underline the required attention on resistance particularly within the most prevalent invasive fungal infections caused by Candida yeasts and Aspergillus moulds. In Denmark, the resistance epidemiology remains to be fully elucidated. This thesis sought to address this demand as well as provide insight into the landscape of underlying molecular resistance mechanisms...
October 2016: Danish Medical Journal
Whitney R Buckel, Edward Stenehjem, Jeff Sorensen, Nathan Dean, Brandon Webb
RATIONALE: Guidelines recommend a switch from intravenous to oral antibiotics once patients who are hospitalized with pneumonia achieve clinical stability. However, little evidence guides the selection of an oral antibiotic for patients with healthcare-associated pneumonia, especially where no microbiological diagnosis is made. OBJECTIVES: To compare outcomes between patients who were transitioned to broad vs narrow spectrum oral antibiotics after initially receiving broad-spectrum intravenous antibiotic coverage...
October 3, 2016: Annals of the American Thoracic Society
Fahimeh Rezazadeh, Abdollah Bazargani, Jamshid Roozbeh-Shahroodi, Ali Pooladi, Peyman Arasteh, Khosro Zamani
INTRODUCTION: Diabetes is associated with higher rates of caries, on the other hand some studies have shown that renal failure can be protective against dental caries. OBJECTIVES: In this study we compared oral Lactobacillus and Streptococcus mutans between diabetic dialysis and non-diabetic dialysis patients and the normal population. PATIENTS AND METHODS: During November 2014 to January 2014, 85 people that referred to our medical care center entered the study...
2016: Journal of Renal Injury Prevention
S Giguère, A J Burton, L J Berghaus, A D Haspel
The objective of this study was to compare the pharmacokinetics of minocycline in foals vs. adult horses. Minocycline was administered to six healthy 6- to 9-week-old foals and six adult horses at a dose of 4 mg/kg intragastrically (IG) and 2 mg/kg intravenously (i.v.) in a cross-over design. Five additional oral doses were administered at 12-h intervals in foals. A microbiologic assay was used to measure minocycline concentration in plasma, urine, synovial fluid, and cerebrospinal fluid (CSF). Liquid chromatography-tandem mass spectrometry was used to measure minocycline concentrations in pulmonary epithelial lining fluid (PELF) and bronchoalveolar (BAL) cells...
September 29, 2016: Journal of Veterinary Pharmacology and Therapeutics
Y C M de Waal, H V L C Eijsbouts, E G Winkel, A J van Winkelhoff
BACKGROUND: Aim of this case-control study was to compare oral microbiological characteristics of subjects with healthy peri-implant conditions and subjects with peri-implantitis and to explore the influence of various patient-related and implant-related factors on the microbiological characteristics. METHODS: Peri-implant submucosal microbial samples were collected from 85 patients with peri-implantitis (cases) and from 69 patients with only implants with healthy peri-implant conditions (controls)...
September 26, 2016: Journal of Periodontology
Weini Xin, Katherine Chiu Man Leung, Edward Chin Man Lo, Mo Yin Mok, Moon Ho Leung
BACKGROUND: Sjögren's syndrome (SS) patients are prone to caries development due to reduction of salivary flow. Topical fluoride is commonly prescribed for caries prevention. METHODS: In this 24-month randomized, double-blind, placebo-controlled clinical trial, SS patients were randomly assigned to receive either fluoride varnish or placebo gel quarterly. Development and arrest of caries at the coronal and root surfaces were recorded at 12-month and 24-month and compared to that of the baseline...
2016: BMC Oral Health
Luiz F F Oliveira, Sérgio L Salvador, Pedro H F Silva, Flávia A C Furlaneto, Luciene Figueiredo, Renato Casarin, Edilson Ervolino, Daniela B Palioto, Sérgio L S Souza, Mario Taba, Arthur B Novaes, Michel R Messora
BACKGROUND: This study evaluated the effects of topical administration of probiotic bacteria (PROB) of the genus Bifidobacterium on experimental periodontitis (EP) in rats. METHODS: 32 rats were divided into groups C (control; without EP), EP (EP only), C-HN019 (control+PROB) and EP-HN019 (EP+PROB). On day 0 of the experiment, animals of groups EP and EP-HN019 received cotton ligatures around mandibular first molars (MFM). In groups C-HN019 and EP-HN019, 1mL of suspensions containing Bifidobacterium animalis subsp lactis (B...
September 23, 2016: Journal of Periodontology
Ana Santoveña, Irma Charola, Javier Suárez-González, Nuria Teigell-Pérez, Susana García-van Nood, Mabel Soriano, José B Fariña
There is as yet no commercialized preparation for oral administration of flecainide acetate (FA) to children. In such cases, manipulation of commercial tablets is the usual practice in pharmacy services of hospitals and compounding pharmacies, to provide a suitable dosage form for this vulnerable pediatric population group. In this study we have formulated FA as an oral solution, as an alternative to the suspension elaborated from commercial tablets. Due to this sensitivity of young patients, we have used the pure active pharmaceutical ingredient (API) and the lowest permitted levels of pediatric excipients...
September 23, 2016: Pharmaceutical Development and Technology
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