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https://www.readbyqxmd.com/read/29931785/optimisation-of-the-medium-for-the-growth-of-nitrobacter-winogradskyi-by-statistical-method
#1
Yun Zhang, Yang Zhang, Jie Gao, Qiuxuan Shen, Zhihui Bai, Xuliang Zhuang, Guoqiang Zhuang
Although Nitrobacter winogradskyi is an important chemoorganotrophic organism for the study of nitrite-oxidizing bacteria (NOB) physiology as well as nitrification, until now, the mixotrophic medium for this organism growth has not been optimized, comprehensively. In this study, we aimed to improve the growth medium of N. winogradskyi using the one-factor-at-a-time (NaNO2 , glycerol, pH) method. In addition, a further experimental design was carried out based on Central Composite Design (CCD) with response surface methodology (RSM)...
June 21, 2018: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/29931538/alk5-runx1-signaling-mediated-by-extracellular-vesicles-promotes-vascular-repair-in-acute-respiratory-distress-syndrome
#2
Trushil Shah, Shanshan Qin, Mona Vashi, Dan N Predescu, Niranjan Jeganathan, Cristina Bardita, Balaji Ganesh, Salvatore diBartolo, Louis F Fogg, Robert A Balk, Sanda A Predescu
BACKGROUND: Pulmonary endothelial cells' (ECs) injury and apoptotic death are necessary and sufficient for the pathogenesis of the acute respiratory distress syndrome (ARDS), regardless of epithelial damage. Interaction of dysfunctional ECs with circulatory extracellular vesicles (EVs) holds therapeutic promise in ARDS. However, the presence in the blood of long-term ARDS survivors of EVs with a distinct phenotype compared to the EVs of non-surviving patients is not reported. With a multidisciplinary translational approach, we studied EVs from the blood of 33 patients with moderate-to-severe ARDS...
June 22, 2018: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/29931303/the-effects-of-adipose-stem-cell-conditioned-media-on-fibrogenesis-of-dermal-fibroblasts-stimulated-by-transforming-growth-factor-%C3%AE-1
#3
Bo Yuan, James A Broadbent, Jingning Huan, Huizhong Yang
Adipose-derived stem cells (ASCs) have been shown to enhance wound healing by human dermal fibroblasts; however, the interactions between ASCs and fibroblasts during injury remain unclear. Fibroblasts were treated with ASC-conditioned medium (ASC-CM) with and without transforming growth factor-β1 (TGF-β1) stimulation. Fibroblast proliferation, apoptosis, differentiation and expression of extracellular matrix genes and proteins, type I collagen, and type III collagen were measured. Also, wound-healing effect of ASC-CM was verified with in vivo animal study...
January 1, 2018: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/29931272/spathaspora-passalidarum-selected-for-resistance-to-afex-hydrolysate-shows-decreased-cell-yield
#4
Yi-Kai Su, Laura B Willis, Lars Rehmann, David Smith, Thomas W Jeffries
This study employed cell recycling, batch adaptation, cell mating and high throughput screening to select adapted Spathaspora passalidarum strains with improved fermentative ability.The most promising candidate, YK208-E11 (E11) showed a 3-fold increase in specific fermentation rate compared to the parental strain and an ethanol yield greater than 0.45 g/g substrate while co-utilizing cellobiose, glucose, and xylose. Further characterization showed that strain E11 also makes 40% less biomass compared to the parental strain when cultivated in rich media under aerobic conditions...
June 21, 2018: FEMS Yeast Research
https://www.readbyqxmd.com/read/29930984/enhanced-utilization-of-induced-pluripotent-stem-cell-derived-human-intestinal-organoids-using-microengineered-chips
#5
Michael J Workman, John P Gleeson, Elissa J Troisi, Hannah Q Estrada, S Jordan Kerns, Christopher D Hinojosa, Geraldine A Hamilton, Stephan R Targan, Clive N Svendsen, Robert J Barrett
Background and Aims: Human intestinal organoids derived from induced pluripotent stem cells have tremendous potential to elucidate the intestinal epithelium's role in health and disease, but it is difficult to directly assay these complex structures. This study sought to make this technology more amenable for study by obtaining epithelial cells from induced pluripotent stem cell-derived human intestinal organoids and incorporating them into small microengineered Chips. We then investigated if these cells within the Chip were polarized, had the 4 major intestinal epithelial subtypes, and were biologically responsive to exogenous stimuli...
2018: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29930713/critical-factors-for-lentivirus-mediated-prdx4-gene-transfer-in-the-hepg2-cell-line
#6
Afiah Nasuha Aznan, Norwahidah Abdul Karim, Wan Zurinah Wan Ngah, Zakiah Jubri
Optimization of critical factors affects transduction efficiency and is able to reduce reagent consumption. The present study aimed to determine the optimum transduction conditions of small hairpin (sh)RNA against peroxiredoxin 4 (PRDX4) in the HepG2 cell line. Cell viability assays were conducted based on serum condition, incubation time, polybrene concentration and antibiotic dose selection. Non-targeting control shRNA was transduced into HepG2 cells in a 5-fold serial dilution, and colonies positive for green fluorescent protein were counted using ImageJ software...
July 2018: Oncology Letters
https://www.readbyqxmd.com/read/29930457/choroidal-hematoma-presenting-as-pseudo-uveal-melanoma-in-a-monocular-47-year-old-asian-indian-lady-with-opaque-media
#7
Aditya Bansal, Pukhraj Rishi, Swakshyar Saumya Paul, Kumar Saurabh
Pseudomelanoma is a condition that mimics a uveal melanoma. Various methods are used to differentiate between uveal melanoma and mimicking conditions, but none is definitive. We report a case of localized hemorrhagic choroidal detachment in monocular middle-aged Asian lady of Indian origin with opaque media secondary to failed corneal graft. An ultrasound scan revealed a mass lesion suspected to be choroidal melanoma. After 10 weeks of observation and follow-up, lesion showed complete regression as seen with serial ultrasound scans...
May 2018: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/29929735/disturbance-in-na-regulation-in-cells-rich-in-mitochondria-isolated-from-gills-of-the-yellow-clam-mesodesma-mactroides-exposed-to-copper-under-different-osmotic-conditions
#8
Lygia S Nogueira, Adalto Bianchini
Cells rich in mitochondria were isolated from gills of the seawater clam Mesodesma mactroides, incubated in isosmotic saline solution (840 mOsmol/kg H2 O), and exposed (3 h) to environmentally realistic Cu concentrations (nominally: 0, 5, 9 and 20 μg/L). In cells exposed to 20 μg Cu/L, Cu accumulation, Na+ content reduction and carbonic anhydrase (CA) activity inhibition were observed, without significant changes in cell viability and Na+ ,K+ -ATPase (NKA) activity. In the absence of Cu, cell viability and Cu content were reduced in hyposmotic media respect with the control, without changes in Na+ content and enzyme (CA and NKA) activities...
June 5, 2018: Marine Environmental Research
https://www.readbyqxmd.com/read/29929193/induction-of-pro-inflammatory-response-via-activated-macrophage-mediated-nf-%C3%AE%C2%BAb-and-stat3-pathways-in-gastric-cancer-cells
#9
Yujuan Zhou, Longzheng Xia, Qiang Liu, Heran Wang, Jingguan Lin, Linda Oyang, Xiaoyan Chen, Xia Luo, Shiming Tan, Yutong Tian, Min Su, Ying Wang, Pan Chen, Yang Wu, Hui Wang, Qianjin Liao
BACKGROUND/AIMS: Chronic inflammation plays an important role in the initiation and progression of gastric cancer (GC). However, the role and relationship of activated macrophages with gastric mucous epithelium cells in initiating and maintaining the inflammatory process during gastric carcinogenesis remains unclear. METHODS: The tumour associated macrophages (TAMs) density of gastric cancer was characterized by immunohistochemistry, and the relationship between macrophages and gastric epithelium cells was analysed using an in vitro culture system that imitates the inflammatory microenvironment...
June 19, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29928900/characterization-and-comparison-of-human-limbal-explant-cultures-grown-under-defined-and-xeno-free-conditions
#10
Kristyna Brejchova, Peter Trosan, Pavel Studeny, Pavlina Skalicka, Tor Paaske Utheim, Jan Bednar, Katerina Jirsova
Human limbal epithelial cells (LECs) intended for treatment of limbal stem cell deficiency are commonly cultivated on a 3T3 feeder layer with complex culture medium supplemented with fetal bovine serum (FBS). However, FBS is a xenogeneic component containing poorly characterised constituents and exhibits quantitative and qualitative lot-to-lot variations. Human limbal explants were plated on untreated or fibrin coated plastic plates and cultured in two non-xenogeneic media (supplemented with either human serum or platelet lysate only)...
June 18, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29928668/mesenteric-adipose-derived-stromal-cells-from-crohn-s-disease-patients-induce-protective-effects-in-colonic-epithelial-cells-and-mice-with-colitis
#11
Jill M Hoffman, Aristea Sideri, Jonathan J Ruiz, Dimitris Stavrakis, David Q Shih, Jerrold R Turner, Charalabos Pothoulakis, Iordanes Karagiannides
Mesenteric adipose tissue hyperplasia is a hallmark of Crohn's disease (CD). Recently, we showed that mesenteric adipose-derived stromal cells (ADSCs) from CD, ulcerative colitis, and control patients synthesize and release adipokines in a disease-dependent manner. Here we examined the expression profiles of CD and control patient-derived mesenteric ADSCs and studied the effects of their extracellular mediators on colonocyte signaling in vitro and experimental colitis in vivo. ADSCs were isolated from mesenteric fat of control and CD patients...
2018: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29927983/women-s-knowledge-about-the-conditional-cash-incentive-program-and-its-association-with-institutional-delivery-in-nepal
#12
Shanta Pandey
BACKGROUND AND PURPOSE: Home deliveries increase the risk of maternal and child mortality. To increase institutional deliveries, South Asian countries have introduced various forms of Conditional Cash Transfer (CCT) schemes that offer women cash if they come to deliver at a health facility. In 2005, Nepal introduced its Safe Delivery Incentive Programme (SDIP)-a cash incentive program nationwide to boost the rate of institutional delivery and care from health professionals at childbirth...
2018: PloS One
https://www.readbyqxmd.com/read/29927105/use-of-axenic-culture-tools-to-study-coxiella-burnetii
#13
Savannah E Sanchez, Eduardo Vallejo-Esquerra, Anders Omsland
Coxiella burnetii is a highly infectious obligate intracellular bacterium and the etiological agent of the zoonosis Query (Q) fever. This Gram-negative gamma-proteobacterium has adapted to replicate within a specialized compartment in mammalian phagocytic cells, known as the Coxiella-containing vacuole (CCV). Knowledge of critical characteristics of the CCV microenvironment (e.g., luminal pH), analysis of the C. burnetii genome sequence, and strategic metabolic profiling have provided the basis for determining the physicochemical and nutritional conditions necessary to support axenic replication of C...
May 18, 2018: Current Protocols in Microbiology
https://www.readbyqxmd.com/read/29926740/the-role-of-social-media-and-internet-search-engines-in-information-provision-and-dissemination-to-patients-with-kidney-stone-disease-ksd-a-systematic-review-from-eau-young-academic-urologists-yau
#14
Enakshee Jamnadass, Omar Aboumarzouk, Panagiotis Kallidonis, Esteban Emiliani, Thomas Tailly, Stephan Hruby, Francesco Sanguedolce, Gokhan Atis, Mehmet Özsoy, Francesco Greco, Bhaskar K Somani
INTRODUCTION: Kidney stone disease (KSD) affects millions of people worldwide and has an increasing incidence. Social media (SoMe) and search engines are both gaining in usage, whilst also being used by patients to research their conditions and aid in managing them. With this in mind, many authors have expressed the belief that SoMe and search engines can be used by patients and healthcare professionals to improve treatment compliance, and to help counselling and management of conditions such as KSD...
June 21, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29925926/a-novel-vibration-induced-exercise-paradigm-improves-fitness-and-lipid-metabolism-of-caenorhabditis-elegans
#15
Emelyne Teo, Krishna Chaithanya Batchu, Diogo Barardo, Linfan Xiao, Amaury Cazenave-Gassiot, Nicholas Tolwinski, Markus Wenk, Barry Halliwell, Jan Gruber
Exercise has been known to reduce the risk of obesity and metabolic syndrome, but the mechanisms underlying many exercise benefits remain unclear. This is, in part, due to a lack of exercise paradigms in invertebrate model organisms that would allow rapid mechanistic studies to be conducted. Here we report a novel exercise paradigm in Caenorhabditis elegans (C. elegans) that can be implemented under standard laboratory conditions. Mechanical stimulus in the form of vibration was transduced to C. elegans grown on solid agar media using an acoustic actuator...
June 20, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29925387/surface-functionalization-of-tio-2-nanotubes-with-minocycline-and-its-in-vitro-biological-effects-on-schwann-cells
#16
Lan A, Wenzhou Xu, Jinghui Zhao, Chunyan Li, Manlin Qi, Xue Li, Lin Wang, Yanmin Zhou
BACKGROUND: Minocycline has been widely used in central nervous system disease. However, the effect of minocycline on the repairing of nerve fibers around dental implants had not been previously investigated. The aim of the present study was to evaluate the possibility of using minocycline for the repairing of nerve fibers around dental implants by investigating the effect of minocycline on the proliferation of Schwann cells and secretion of neurotrophic factors nerve growth factor and glial cell line-derived neurotrophic factor in vitro...
June 20, 2018: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29924807/spanish-youth-is-emigrating-a-bibliometric-approach-to-the-media-coverage
#17
Clara Selva, Aniol Recordà
Recent years have witnessed the emigration of young Spanish people searching for labor opportunities. A decade after the beginning of the worldwide economic crisis in 2007, the rapid deterioration of living conditions and lack of opportunities for personal development combined with the breakdown of professional expectations have led thousands of young people to emigrate from Spain, creating the so-called youth exodus. The press has paid recurrent attention to this phenomenon, often using eye-catching headlines such as 'Brain Drain'...
2018: PloS One
https://www.readbyqxmd.com/read/29924325/life-after-sepsis-an-international-survey-of-survivors-to-understand-the-post-sepsis-syndrome
#18
Cynthia Y Huang, Ron Daniels, Angie Lembo, Christiane Hartog, Jim O'Brien, Thomas Heymann, Konrad Reinhart, H Bryant Nguyen
Objective: In this study, we aim to describe the post-sepsis syndrome from the perspective of the sepsis survivors. Design and Setting: The study is a prospective, observational online international survey. Participants: Sepsis survivors enrolled via social media from 13 September 2014 to 13 September 2016. Interventions: None. Main Outcome Measures: Physiologic, physical and psychological function post-sepsis; and patient satisfaction with sepsis-centered care...
June 19, 2018: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/29924138/allantoin-as-an-independent-marker-associated-with-carotid-intima-media-thickness-in-subclinical-atherosclerosis
#19
M S Santana, K P Nascimento, P A Lotufo, I M Benseãor, F C Meotti
Allantoin is the main product of uric acid oxidation and was found to be augmented in atherosclerotic plaque in human autopsy and in animal models of atherosclerosis. Uric acid is abundant in human plasma and is prone to oxidation in inflammatory conditions such as atherosclerosis. In this study, we found a significant increase in plasma uric acid (P=0.002) and allantoin (P=0.025) in participants of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) that presented common carotid intima-media thickness (c-IMT) within the 75th percentile (c-IMT≥P75)...
2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29923861/optimized-protocol-for-regeneration-of-the-conjunctival-epithelium-using-the-cell-suspension-technique
#20
Marina Bertolin, Claudia Breda, Stefano Ferrari, Sara Ilse Van Acker, Nadia Zakaria, Enzo Di Iorio, Angelo Migliorati, Diego Ponzin, Barbara Ferrari, Zala Lužnik, Vanessa Barbaro
PURPOSE: To develop autologous tissue-engineered conjunctival epithelial sheets to be used as advanced therapy medicinal products for severe ocular surface disorders involving the conjunctiva. METHODS: Methods used aimed at 1) mapping the conjunctiva for identification of the stem cell location, 2) establishing proper cell culturing conditions, 3) identifying the proper scaffold, and 4) characterizing the conjunctival grafts better. For these purposes, immunostaining and PAS staining, serial cultivation of cells, and quantitative polymerase chain reaction ([INCREMENT]Np63α and MUC5AC) were performed...
June 19, 2018: Cornea
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