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https://www.readbyqxmd.com/read/28103152/using-facebook-for-sexual-health-social-marketing-in-conservative-asian-countries-a-systematic-examination
#1
Zain-Ul-Abdin Khawaja, Khudejah Iqbal Ali, Shanze Khan
Social marketing related to sexual health is a problematic task, especially in religiously and/or culturally conservative countries. Social media presents a possible alternative channel for sexual health efforts to disseminate information and engage new users. In an effort to understand how well sexual health campaigns and organizations have leveraged this opportunity, this study presents a systematic examination of ongoing Facebook-based sexual health efforts in conservative Asian countries. It was discovered that out of hundreds of sexual health organizations identified in the region, less than half had created a Facebook page...
January 19, 2017: Journal of Health Communication
https://www.readbyqxmd.com/read/28102836/preparation-characterization-and-in-vitro-dosimetry-of-dispersed-engineered-nanomaterials
#2
Glen M DeLoid, Joel M Cohen, Georgios Pyrgiotakis, Philip Demokritou
Evidence continues to grow of the importance of in vitro and in vivo dosimetry in the hazard assessment and ranking of engineered nanomaterials (ENMs). Accurate dose metrics are particularly important for in vitro cellular screening to assess the potential health risks or bioactivity of ENMs. To ensure meaningful and reproducible quantification of in vitro dose, with consistent measurement and reporting between laboratories, it is necessary to adopt standardized and integrated methodologies for (i) generation of stable ENM suspensions in cell culture media; (ii) colloidal characterization of suspended ENMs, particularly of properties that determine particle kinetics in an in vitro system (size distribution and formed agglomerate effective density); and (iii) robust numerical fate and transport modeling for accurate determination of the ENM dose delivered to cells over the course of the in vitro exposure...
February 2017: Nature Protocols
https://www.readbyqxmd.com/read/28102790/an-adaptable-instrument-and-method-for-exploring-care-and-compassion
#3
Roger Newham, Louise Terry
Background Narratives, particularly when visual and auditory elements are added to words, reveal more about cultures and behaviours, including those present in professional and service settings. Discourse analysis (DA) enables researchers to explicate meanings and understandings linking culture and behaviour. Aim To explain the development of a DA instrument and method for a research study of caring and compassion as expressed in different media. Discussion The DA instrument assisted in systematic and multi-modal data analysis by several researchers from different countries and backgrounds...
January 23, 2017: Nurse Researcher
https://www.readbyqxmd.com/read/28102768/an-experimental-strategy-validated-to-design-cost-effective-culture-media-based-on-response-surface-methodology
#4
J L Navarrete-Bolaños, G P Téllez-Martínez, R Miranda-López, H Jiménez-Islas
For any fermentation process, the production cost depends on several factors, such as the genetics of the microorganism, the process condition and the culture medium composition. In this work, a guideline for the design of cost-efficient culture media using a sequential approach based on response surface methodology is described. The procedure was applied to analyze and optimize a culture medium of registered trademark and a base culture medium obtained as a results of the screening analysis from different culture media used to grow the same strain according to the literature...
January 19, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28102313/cultivation-and-energy-efficient-harvesting-of-microalgae-using-thermoreversible-sol-gel-transition
#5
Bendy Estime, Dacheng Ren, Radhakrishna Sureshkumar
Microalgae represent a promising source of renewable biomass for the production of biofuels and valuable chemicals. However, energy efficient cultivation and harvesting technologies are necessary to improve economic viability. A Tris-Acetate-Phosphate-Pluronic (TAPP) medium that undergoes a thermoreversible sol-gel transition is developed to efficiently culture and harvest microalgae without affecting the productivity as compared to that in traditional culture in a well-mixed suspension. After seeding microalgae in the TAPP medium in a solution phase at 15 °C, the temperature is increased by 7 °C to induce gelation...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101885/what-is-the-true-in%C3%A2-vitro-potency-of-oxytetracycline-for-the-pig-pneumonia-pathogens-actinobacillus-pleuropneumoniae-and-pasteurella-multocida
#6
L Dorey, S Hobson, P Lees
The pharmacodynamics of oxytetracycline was determined for pig respiratory tract pathogens, Actinobacillus pleuropneumoniae and Pasteurella multocida. Indices of potency were determined for the following: (i) two matrices, broth and pig serum; (ii) five overlapping sets of twofold dilutions; and (iii) a high strength starting culture. For A. pleuropneumoniae, minimum inhibitory concentration (MIC) was similar for the two matrices, but for P. multocida, differences were marked and significantly different. MIC and minimum bactericidal concentration (MBC) serum: broth ratios for A...
January 18, 2017: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28101603/biodegradation-of-aldrin-and-dieldrin-by-the-white-rot-fungus-pleurotus-ostreatus
#7
Adi Setyo Purnomo, Refdinal Nawfa, Fahimah Martak, Kuniyoshi Shimizu, Ichiro Kamei
Aldrin and its metabolite dieldrin are persistent organic pollutants that contaminate soil in many parts of the world. Given the potential hazards associated with these pollutants, an efficient degradation method is required. In this study, we investigated the ability of Pleurotus ostreatus to transform aldrin as well as dieldrin in pure liquid cultures. This fungus completely eliminated aldrin in potato dextrose broth (PDB) medium during a 14-day incubation period. Dieldrin was detected as the main metabolite, and 9-hydroxylaldrin and 9-hydroxyldieldrin were less abundant metabolites...
January 18, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28101448/acetylsalicylic-acid-interferes-with-embryonic-kidney-growth-and-development-by-a-prostaglandin-independent-mechanism
#8
Simon J M Welham, Alexander J Sparrow, David S Gardner, Matthew J Elmes
AIM: To evaluate the effects of the non-selective, non-steroidal anti-inflammatory drug (NSAID) acetylsalicylic acid (ASA), on ex vivo embryonic kidney growth and development. METHODS: Pairs of fetal mouse kidneys at embryonic day 12.5 were cultured ex vivo in increasing concentrations of ASA (0.04-0.4 mg/mL) for up to 7 d. One organ from each pair was grown in control media and was used as the internal control for the experimental contralateral organ. In some experiments, organs were treated with ASA for 48 h and then transferred either to control media alone or control media containing 10 μmol/L prostaglandin E2 (PGE2) for a further 5 d...
January 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28101334/implementation-of-short-incubation-maldi-tof-ms-identification-from-positive-blood-cultures-in-routine-diagnostics-and-effects-on-empiric-antimicrobial-therapy
#9
Robin Köck, Jörg Wüllenweber, Dagmar Horn, Christian Lanckohr, Karsten Becker, Evgeny A Idelevich
BACKGROUND: Results of blood culture (BC) diagnostics should be swiftly available to guide treatment of critically ill patients. Conventional BC diagnostics usually performs species identification of microorganisms from mature solid medium colonies. Species identification might be speed up by using matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry (MS) of biomass from shortly incubated solid media. METHODS: This single-center analysis compared the applicability of MALDI-TOF-based species identification from shortly incubated cultures in laboratory routine vs...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28100601/the-use-of-selective-fungal-culture-media-increases-detection-rates-of-fungi-in-the-cystic-fibrosis-respiratory-tract
#10
Gina Hong, Heather B Miller, Sarah Allgood, Richard Lee, Noah Lechtzin, Sean X Zhang
The prevalence of fungi in the respiratory tract of cystic fibrosis (CF) patients has risen. However, fungal surveillance is not routinely performed in most clinical centers in the United States, which may lead to an underestimation of the true prevalence of the problem. We conducted a prospective study comparing fungal detection rates for clinically important fungi (CIF) defined as Aspergillus species, Scedosporium species, Trichosporon species, and Exophiala dermatitidis in CF sputum using standard bacterial culture media and selective-fungal culture media, including Sabouraud dextrose agar with gentamicin (SDA), inhibitory mold agar (IMA), and brain-heart infusion agar (BHI) with chloramphenicol and gentamicin...
January 18, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28100438/high-dose-rifampicin-moxifloxacin-and-sq109-for-treating-tuberculosis-a-multi-arm-multi-stage-randomised-controlled-trial
#11
Martin J Boeree, Norbert Heinrich, Rob Aarnoutse, Andreas H Diacon, Rodney Dawson, Sunita Rehal, Gibson S Kibiki, Gavin Churchyard, Ian Sanne, Nyanda E Ntinginya, Lilian T Minja, Robert D Hunt, Salome Charalambous, Madeleine Hanekom, Hadija H Semvua, Stellah G Mpagama, Christina Manyama, Bariki Mtafya, Klaus Reither, Robert S Wallis, Amour Venter, Kim Narunsky, Anka Mekota, Sonja Henne, Angela Colbers, Georgette Plemper van Balen, Stephen H Gillespie, Patrick P J Phillips, Michael Hoelscher
BACKGROUND: Tuberculosis is the world's leading infectious disease killer. We aimed to identify shorter, safer drug regimens for the treatment of tuberculosis. METHODS: We did a randomised controlled, open-label trial with a multi-arm, multi-stage design. The trial was done in seven sites in South Africa and Tanzania, including hospitals, health centres, and clinical trial centres. Patients with newly diagnosed, rifampicin-sensitive, previously untreated pulmonary tuberculosis were randomly assigned in a 1:1:1:1:2 ratio to receive (all orally) either 35 mg/kg rifampicin per day with 15-20 mg/kg ethambutol, 20 mg/kg rifampicin per day with 400 mg moxifloxacin, 20 mg/kg rifampicin per day with 300 mg SQ109, 10 mg/kg rifampicin per day with 300 mg SQ109, or a daily standard control regimen (10 mg/kg rifampicin, 5 mg/kg isoniazid, 25 mg/kg pyrazinamide, and 15-20 mg/kg ethambutol)...
January 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28100305/environment-directed-activation-the-escherichia-coli-flhdc-operon-by-transposons
#12
Zhongge Zhang, Chika Kukita, Mir Zafri Humayun, Milton H Saier
The flagellar system in E. coli K12 is expressed under the control of the flhDC-encoded master regulator, FlhDC. Transposition of insertion sequence (IS) elements to the upstream flhDC promoter region up-regulates transcription of this operon, resulting in more rapid motility. Wang and Wood (2011) provided evidence that insertion of IS5 into upstream activating sites occurs at higher rates in semisolid agar media in which swarming behavior is allowed as compared with liquid or solid media where swarming cannot occur...
January 17, 2017: Microbiology
https://www.readbyqxmd.com/read/28100236/human-%C3%AE-defensin-2-production-from-s-cerevisiae-using-the-repressible-met17-promoter
#13
Thea S B Møller, Joanna Hay, Malcolm J Saxton, Karen Bunting, Evamaria I Petersen, Søren Kjærulff, Christopher J A Finnis
BACKGROUND: Baker's yeast Saccharomyces cerevisiae is a proven host for the commercial production of recombinant biopharmaceutical proteins. For the manufacture of heterologous proteins with activities deleterious to the host it can be desirable to minimise production during the growth phase and induce production late in the exponential phase. Protein expression by regulated promoter systems offers the possibility of improving productivity in this way by separating the recombinant protein production phase from the yeast growth phase...
January 18, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28098879/cytokines-inducers-and-inhibitors-modulate-mmp-2-and-mmp%C3%A2-9-secretion-by-human-fanconi-anemia-immortalized-fibroblasts
#14
M W Roomi, T Kalinovsky, M Rath, A Niedzwiecki
Acute myeloid leukemia and head and neck squamous cell carcinomas are the major causes of mortality and morbidity in Fanconi anemia (FA) patients. Matrix metalloproteinases (MMPs), particularly MMP-2 and MMP-9, have been implicated in tumor invasion and metastasis. Various cytokines, mitogens, growth factors, inducers and inhibitors control MMP activities. We investigated the roles of these in the regulation of MMP-2 and MMP-9 in human immortalized fibroblasts from FA. Human FA immortalized fibroblast cell lines FA-A:PD220 and FA-D2:PD20 were grown in minimum essential medium (MEM) supplemented with 15% fetal bovine serum (FBS) and antibiotics in 24-well tissue culture plates...
January 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28098500/exploring-black-college-females-perceptions-regarding-hiv-prevention-message-content
#15
Rasheeta Chandler-Coley, Henry Ross, Oluwatobi Ozoya, Celia Lescano, Timothy Flannigan
Media messages can facilitate the delivery of accurate information related to HIV and sexually transmitted infection. This study's purpose was to examine preexisting media campaigns from the iMPPACS study to assess age-, gender-, and culturally appropriate components identified by African American females who attend historically Black colleges/universities. In 3 separate focus group sessions, 31 Black female college students (M age = 20) viewed 4 vignettes and heard 3 audio-only clips, then ranked and commented on them based on perceived satisfaction with HIV prevention content and appropriateness of delivery...
January 18, 2017: Journal of Health Communication
https://www.readbyqxmd.com/read/28097685/cartilage-oligomeric-matrix-protein-comp-neo-epitope-in-the-synovial-fluid-of-horses-with-acute-lameness-a-new-biomarker-for-the-early-stages-of-osteoarthritis
#16
E Skiöldebrand, S Ekman, L MattssonHultén, E Svala, K Björkman, A Lindahl, A Lundqvist, P Önnerfjord, C Sihlbom, U Rüetschi
BACKGROUND: Clinical tools to diagnose the early changes of osteoarthritis (OA) that occur in the articular cartilage are lacking. OBJECTIVES: We sought to identify and quantify a novel cartilage oligomeric matrix protein (COMP) neo-epitope in the synovial fluid from the joints of healthy horses and those with different stages of OA. STUDY DESIGN: In vitro quantitative proteomics and assay development with application in synovial fluids samples obtained from biobanks of well-characterised horses...
January 17, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28097594/mechanism-of-anti-vibrio-activity-of-marine-probiotic-strain-bacillus-pumilus-h2-and-characterization-of-the-active-substance
#17
Xi-Yan Gao, Ying Liu, Li-Li Miao, Er-Wei Li, Ting-Ting Hou, Zhi-Pei Liu
Vibriosis is a major epizootic disease that impacts free-living and farmed fish species worldwide. Use of probiotics is a promising approach for prevention of Vibrio infections in aquaculture. A probiotic anti-Vibrio strain, Bacillus pumilus H2, was characterized, and the mechanism of its effect was investigated. All 29 Vibrio strains tested were growth-inhibited by H2. The anti-Vibrio substance present in cell-free supernatant of H2 was purified and characterized by reversed-phase HPLC. Minimum inhibitory concentrations of the purified substance, determined in liquid media for various Vibrio strains, ranged from 0...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28097203/staged-anticonvulsant-screening-for-chronic-epilepsy
#18
Yevgeny Berdichevsky, Yero Saponjian, Kyung-Il Park, Bonnie Roach, Wendy Pouliot, Kimberly Lu, Waldemar Swiercz, F Edward Dudek, Kevin J Staley
OBJECTIVE: Current anticonvulsant screening programs are based on seizures evoked in normal animals. One-third of epileptic patients do not respond to the anticonvulsants discovered with these models. We evaluated a tiered program based on chronic epilepsy and spontaneous seizures, with compounds advancing from high-throughput in vitro models to low-throughput in vivo models. METHODS: Epileptogenesis in organotypic hippocampal slice cultures was quantified by lactate production and lactate dehydrogenase release into culture media as rapid assays for seizure-like activity and cell death, respectively...
December 2016: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28095523/effects-of-titanium-surface-microtopography-and-simvastatin-on-growth-and-osteogenic-differentiation-of-human-mesenchymal-stem-cells-in-estrogen-deprived-cell-culture
#19
Premjit Arpornmaeklong, Prisana Pripatnanont, Chonticha Chookiatsiri, Boonsin Tangtrakulwanich
PURPOSE: This study aimed to investigate the effects of titanium surface topography and simvastatin on growth and osteogenic differentiation of human bone marrow stromal cells (hBMSCs) in estrogen-deprived (ED) cell culture. MATERIALS AND METHODS: Human BMSCs were seeded on cell culture plates, smooth-surface titanium (Ti) disks, and sandblasted with large grits and acid etched (SLA)-surface Ti disks; and subsequently cultured in regular (fetal bovine serum [FBS]), ED, and ED-with 100 nM simvastatin (ED-SIM) culture media for 14 to 21 days...
January 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28095466/substrate-stiffness-controls-osteoblastic-and-chondrocytic-differentiation-of-mesenchymal-stem-cells-without-exogenous-stimuli
#20
Rene Olivares-Navarrete, Erin M Lee, Kathryn Smith, Sharon L Hyzy, Maryam Doroudi, Joseph K Williams, Ken Gall, Barbara D Boyan, Zvi Schwartz
Stem cell fate has been linked to the mechanical properties of their underlying substrate, affecting mechanoreceptors and ultimately leading to downstream biological response. Studies have used polymers to mimic the stiffness of extracellular matrix as well as of individual tissues and shown mesenchymal stem cells (MSCs) could be directed along specific lineages. In this study, we examined the role of stiffness in MSC differentiation to two closely related cell phenotypes: osteoblast and chondrocyte. We prepared four methyl acrylate/methyl methacrylate (MA/MMA) polymer surfaces with elastic moduli ranging from 0...
2017: PloS One
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