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https://www.readbyqxmd.com/read/28650945/treatment-approach-for-infection-of-healed-fractures-after-internal-fixation
#1
Joshua M Lawrenz, Salvatore J Frangiamore, Ajinkya A Rane, W Alex Cantrell, Heather A Vallier
OBJECTIVE: To review the efficacy of a treatment approach for patients with infection and colonized implants after open reduction and internal fixation of fractures. DESIGN: Retrospective case series. SETTING: Level one trauma center. PATIENTS: Twenty patients were treated for wound infection with colonized implants after open reduction and internal fixation. INTERVENTION: Surgical debridement, removal of implants and a short post-operative oral antibiotic course...
June 15, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28650106/dok3-modulates-bone-remodeling-by-negatively-regulating-osteoclastogenesis-and-positively-regulating-osteoblastogenesis
#2
Xiaofeng Cai, Junjie Xing, Courtney L Long, Qisheng Peng, Mary Beth Humphrey
Osteoclastogenesis is essential for bone remodeling and normal skeletal maintenance. RANKL promotes osteoclast differentiation and function but requires costimulation of immunoreceptor tyrosine-based activation motif (ITAM)-coupled immunoreceptors. Triggering receptor expressed on myeloid cells-2 (TREM2) coupled to ITAM-adaptor protein DNAX activation protein 12kDA (DAP12) provides costimulation of intracellular calcium signaling during osteoclastogenesis. Previously, we found that downstream of kinase-3 (DOK3) physically associates with DAP12 to inhibit toll-like receptor (TLR)-induced inflammatory signaling in macrophages...
June 26, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28649658/niche-localized-tumor-cells-are-protected-from-her2-targeted-therapy-via-upregulation-of-an-anti-apoptotic-program-in-vivo
#3
Jason J Zoeller, Roderick T Bronson, Laura M Selfors, Gordon B Mills, Joan S Brugge
Several lines of evidence suggest that components of the tumor microenvironment, specifically basement membrane and extracellular matrix proteins, influence drug sensitivities. We previously reported differential drug sensitivity of tumor cells localized adjacent to laminin-rich extracellular matrix in three-dimensional tumor spheroid cultures. To evaluate whether differential intra-tumor responses to targeted therapy occur in vivo, we examined the sensitivity of human epidermal growth factor receptor 2-positive tumors to lapatinib using a previously described ductal carcinoma in situ-like model characterized by tumor cell confinement within ductal structures surrounded by an organized basement membrane...
2017: NPJ Breast Cancer
https://www.readbyqxmd.com/read/28649062/antibacterial-activity-of-penicillins-alone-and-in-combination-with-different-agents-against-staphylococcus-aureus
#4
Sumbal Nosheen, Hasan Ejaz, Aizza Zafar, Hafeez Ikram
Difficulties in the treatment of the resistant strains of Staphylococcus aureus, which is a frequent cause of nosocomial infections in paediatric patients, has prompted this research to empower the usage of various combinations of penicillin. During the study period 17,452 clinical samples were processed for culture. The positive cultures yielded 564 strains of S. aureus. Out of these, 362 (64.2%) isolates were found to be methicillin sensitive S. aureus (MSSA) and 202 (35.8%) methicillin resistant S. aureus (MRSA)...
March 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28648659/enterochromaffin-cells-are-gut-chemosensors-that-couple-to-sensory-neural-pathways
#5
Nicholas W Bellono, James R Bayrer, Duncan B Leitch, Joel Castro, Chuchu Zhang, Tracey A O'Donnell, Stuart M Brierley, Holly A Ingraham, David Julius
Dietary, microbial, and inflammatory factors modulate the gut-brain axis and influence physiological processes ranging from metabolism to cognition. The gut epithelium is a principal site for detecting such agents, but precisely how it communicates with neural elements is poorly understood. Serotonergic enterochromaffin (EC) cells are proposed to fulfill this role by acting as chemosensors, but understanding how these rare and unique cell types transduce chemosensory information to the nervous system has been hampered by their paucity and inaccessibility to single-cell measurements...
June 21, 2017: Cell
https://www.readbyqxmd.com/read/28647805/a-comprehensive-health-profile-of-guyanese-immigrants-aged-18-64-in-schenectady-new-york
#6
Akiko S Hosler, Jamie R Kammer
Guyanese immigrants are the 5th largest foreign-born group in NY State, but sparse literature is available on their health status and health needs. A community-based health interview survey of Schenectady NY residents aged 18-64 (N = 1861) was analyzed. Bivariate comparisons between Guyanese respondents and White, Black, and Hispanic respondents were made for each variable to identify disparities. As predominantly low SES immigrants, Guyanese adults were less likely to be covered by health insurance, have a usual place for care, and receive cancer screenings...
June 24, 2017: Journal of Immigrant and Minority Health
https://www.readbyqxmd.com/read/28647334/test-characteristics-of-milk-amyloid-a-elisa-somatic-cell-count-and-bacteriological-culture-for-detection-of-intramammary-pathogens-that-cause-subclinical-mastitis
#7
S Jaeger, F Virchow, P R Torgerson, M Bischoff, B Biner, S Hartnack, S R Rüegg
Bovine mastitis is an important disease in the dairy industry, causing economic losses as a result of withheld milk and treatment costs. Several studies have suggested milk amyloid A (MAA) as a promising biomarker in the diagnosis of mastitis. In the absence of a gold standard for diagnosis of subclinical mastitis, we estimated the diagnostic test accuracy of a commercial MAA-ELISA, somatic cell count (SCC), and bacteriological culture using Bayesian latent class modeling. We divided intramammary infections into 2 classes: those caused by major pathogens (e...
June 21, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28647256/bioavailability-of-wastewater-derived-dissolved-organic-nitrogen-to-green-microalgae-selenastrum-capricornutum-chlamydomonas-reinhardtii-and-chlorella-vulgaris-with-without-presence-of-bacteria
#8
Jingyi Sun, Halis Simsek
Effluent dissolved organic nitrogen (DON) is problematic in nutrient sensitive surface waters and needs to be reduced to meet demanding total dissolved nitrogen discharge limits. Bioavailable DON (ABDON) is a portion of DON utilized by algae or algae+bacteria, while biodegradable DON (BDON) is a portion of DON decomposable by bacteria. ABDON and BDON in a two-stage trickling filter (TF) wastewater treatment plant was evaluated using three different microalgal species, Selenastrum capricornutum, Chlamydomonas reinhardtii and Chlorella vulgaris and mixed cultured bacteria...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28646949/recognition-and-diagnosis-of-invasive-fungal-infections-in-neonates
#9
Joanne L Calley, Adilia Warris
Fungal infections largely caused by Candida species are responsible for a significant disease burden in neonates and invasive candidiasis in hospitalised neonates has high associated morbidity and mortality. Early initiation of antifungal treatment improves outcome but the recognition and diagnosis of systemic fungal infection in this population is difficult due to the non-specific clinical presentation and the high false negative rate of cultures. There is a need for a practical, sensitive and rapid diagnostic test to enhance identification and early treatment...
June 2017: Journal of Infection
https://www.readbyqxmd.com/read/28646859/comparison-of-different-nat-assays-for-the-detection-of-microorganisms-belonging-to-the-class-mollicutes
#10
O Vega-Orellana, J B Poveda, R S Rosales, J M Bradbury, C G Poveda, L E Mederos-Iriarte, M M Tavío, A S Ramírez
BACKGROUND: Mollicutes detection can be cumbersome due to their slow growth in vitro. For this reason, the use of DNA based on generic molecular tests represents an alternative for rapid, sensitive and specific detection of these microorganism. For this reason, six previously described nucleic acid testing assays were compared to evaluate their ability to detect microorganisms belonging to the class Mollicutes. METHODS: A panel of 61 mollicutes, including representatives from the Mycoplasma, Acholeplasma, Mesoplasma, Spiroplasma and Ureaplasma genus, were selected to evaluate the sensitivity and specificity of these assays...
June 24, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28646666/detection-of-mycobacterium-avium-subspecies-paratuberculosis-in-powdered-infant-formula-using-is900-quantitative-pcr-and-liquid-culture-media
#11
Kamal R Acharya, Navneet K Dhand, Richard J Whittington, Karren M Plain
Mycobacterium avium subspecies paratuberculosis (MAP) has been implicated in Crohn's disease in humans resulting in public concern over the presence of MAP in powdered infant formula, which could contribute towards early human exposure to MAP or MAP components. Testing of representative powdered infant formula samples using effective tests is required to provide information on contamination of infant formula with MAP, so that consumers can make informed decisions. This study aimed to test representative powdered infant formula samples for the presence of MAP using a quantitative PCR and liquid culture method...
June 8, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28646354/associations-between-race-and-eating-disorder-symptom-trajectories-in-black-and-white-girls
#12
Lindsay P Bodell, Jennifer E Wildes, Yu Cheng, Andrea B Goldschmidt, Kate Keenan, Alison E Hipwell, Stephanie D Stepp
Epidemiological research suggests racial differences in the presentation of eating disorder symptoms. However, no studies have examined associations between race and eating disorder symptom trajectories across youth and adolescence, which is necessary to inform culturally sensitive prevention programs. The purpose of the current study was to examine the trajectories of eating disorder symptoms from childhood to young adulthood and to examine whether race was associated with trajectory group membership. Data were drawn from 2,305 Black and White girls who participated in a community-based longitudinal cohort study (Pittsburgh Girls Study) examining the development of psychopathology...
June 23, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28645756/an-aptamer-based-pcr-method-coupled-with-magnetic-immunoseparation-for-sensitive-detection-of-salmonella-typhimurium-in-ground-turkey
#13
Lijun Wang, Ronghui Wang, Hong Wang, Michael Slavik, Hua Wei, Yanbin Li
Aptamers are single-stranded oligonucleotide ligands that can bind to targets with high affinity and specificity. They have been widely studied in the field of diagnostics as alternatives to antibodies due to their favorable features such as easy labeling, temperature tolerance, lower cost and recognition of a wide variety of targets. In this study, an aptamer-based PCR method coupled with magnetic immunoseparation was developed to detect S. Typhimurium from ground turkey. Firstly, biotinylated polyclonal anti-S...
June 20, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28645279/diabetes-care-in-a-complex-humanitarian-emergency-setting-a-qualitative-evaluation
#14
Adrianna Murphy, Michel Biringanine, Bayard Roberts, Beverley Stringer, Pablo Perel, Kiran Jobanputra
BACKGROUND: Evidence is urgently needed from complex emergency settings to support efforts to respond to the increasing burden of diabetes mellitus (DM). We conducted a qualitative study of a new model of DM health care (Integrated Diabetic Clinic within an Outpatient Department [IDC-OPD]) implemented by Médecins Sans Frontières (MSF) in Mweso Hospital in eastern Democratic Republic of Congo (DRC). We aimed to explore patient and provider perspectives on the model in order to identify factors that may support or impede it...
June 23, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28645157/secretory-iga-response-against-pseudomonas-aeruginosa-in-the-upper-airways-and-the-link-with-chronic-lung-infection-in-cystic-fibrosis
#15
Renan Mauch, Claudio Rossi, Talita Aiello, José Ribeiro, Antonio Ribeiro, Niels Høiby, Carlos Levy
We assessed the diagnostic ability of an ELISA test for measurement of specific secretory IgA (sIgA) in saliva to identify Cystic Fibrosis (CF) patients with P. aeruginosa chronic lung infection and intermittent lung colonization. A total of 102 Brazilian CF patients and 53 healthy controls were included. Specific serum IgG response was used as a surrogate to distinguish CF patients according to their P. aeruginosa colonization/infection status. The rate of sIgA positivity was 87.1% in CF chronically infected patients (Median value = 181...
June 22, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28645088/risk-based-screening-combined-with-a-pcr-based-test-for-group-b-streptococci-diminishes-the-use-of-antibiotics-in-laboring-women
#16
Mohammed R Khalil, Niels Uldbjerg, Poul B Thorsen, Birgitte Henriksen, Jens K Møller
OBJECTIVE: To assess the performance of a polymerase chain reaction - group B streptococci test (PCR-GBS test) - in deciding antibiotic prophylaxis in term laboring women. STUDY DESIGN: In this observational study, we enrolled 902 unselected Danish term pregnant women. During labor, midwives obtained vaginal swabs that were used for both GBS cultures (reference standard) and for the PCR-GBS test. Furthermore, we recorded the presence of risk factors for EOGBS (Early Onset Group B Streptococcal disease): (1) Bacteriuria during current pregnancy, (2) Prior infant with EOGBS (3) Temperature above 38...
June 9, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28644407/cotton-ascorbate-oxidase-promotes-cell-growth-in-cultured-tobacco-bright-yellow-2-cells-through-generation-of-apoplast-oxidation
#17
Rong Li, Shan Xin, Chengcheng Tao, Xiang Jin, Hongbin Li
Ascorbate oxidase (AO) plays an important role in cell growth through the modulation of reduction/oxidation (redox) control of the apoplast. Here, a cotton (Gossypium hirsutum) apoplastic ascorbate oxidase gene (GhAO1) was obtained from fast elongating fiber tissues. GhAO1 belongs to the multicopper oxidase (MCO) family and includes a signal peptide and several transmembrane regions. Analyses of quantitative real-time polymerase chain reaction (QRT-PCR) and enzyme activity showed that GhAO1 was expressed abundantly in 15-day post-anthesis (dpa) wild-type (WT) fibers in comparison with fuzzless-lintless (fl) mutant ovules...
June 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28643434/improved-yield-of-minimal-proportional-sample-volume-platelet-bacterial-culture
#18
Hany Kamel, Mary Townsend, Marjorie Bravo, Ralph R Vassallo
BACKGROUND: Reports of septic transfusion reactions (STRs) after transfusion of culture-negative platelets (PLTs) justify more effective prevention strategies. Pathogen reduction technologies or performance of additional point-of-issue testing are proposed strategies to enhance safety through Day 5 of storage. STUDY DESIGN AND METHODS: Trima leukoreduced apheresis PLTs (APs) were collected during two study periods (45 and 31 months) using standard procedures, with target settings adjusted during the second period to maintain split rate after increased culture volume...
June 22, 2017: Transfusion
https://www.readbyqxmd.com/read/28642144/performance-of-aspergilluspcr-in-cerebrospinal-fluid-for-the-diagnosis-of-cerebral-aspergillosis
#19
Sébastien Imbert, Jean-Yves Brossas, Martine Palous, Isabelle Joly, Isabelle Meyer, Arnaud Fekkar
OBJECTIVES: cerebral aspergillosis is a rare but often fatal form of invasive aspergillosis that remains difficult to diagnose. The literature has shown the value of Aspergillus PCR in blood-derived samples for the diagnosis of invasive aspergillosis but provides far less information for cerebrospinal fluid (CSF) in cerebral aspergillosis. Here, we evaluated the usefulness of an Aspergillus PCR assay performed on CSF for the diagnosis of cerebral aspergillosis. METHODS: this retrospective study involved 72 patients with suspected cerebral aspergillosis for a total of 88 CSF samples in whom CSF Aspergillus PCR was performed...
June 19, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28642141/added-diagnostic-value-and-impact-on-antimicrobial-therapy-of-16s-rrna-pcr-and-amplicon-sequencing-on-resected-heart-valves-in-infective-endocarditis-a-prospective-cohort-study
#20
Bart Peeters, Paul Herijgers, Kurt Beuselinck, Jan Verhaegen, Willy E Peetermans, Marie-Christine Herregods, Stefanie Desmet, Katrien Lagrou
OBJECTIVES: For adequate management and therapy of infective endocarditis (IE), identification of the causative pathogen is crucial but currently molecular testing results are not included in diagnostic criteria. The added diagnostic value and impact on antimicrobial therapy of 16S rRNA PCR and Amplicon Sequencing (16S rRNA PCR) performed on excised heart valves from IE patients was evaluated alongside with the effect of pre-operative antibiotics on the performance of blood culture (BC), valve culture (VC) and 16S rRNA PCR...
June 19, 2017: Clinical Microbiology and Infection
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