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https://www.readbyqxmd.com/read/28822209/primary-culture-of-rat-aortic-vascular-smooth-muscle-cells-a-new-method
#1
Jufang Chi, Liping Meng, Sunlei Pan, Hui Lin, Xiaoya Zhai, Longbin Liu, Changzuan Zhou, Chengjian Jiang, Hangyuan Guo
BACKGROUND Developing a simple and efficient method of obtaining primary cultured VSMCs is necessary for basic cardiovascular research. MATERIAL AND METHODS The procedure of our new method mainly includes 6 steps: isolation of the aortic artery, removal of the fat tissue around the artery, separation of the media, cutting the media into small tissue blocks, transferring the tissue blocks to cell culture plates, and incubation until the cells reach confluence. The cells were identified as VSMCs by morphology and immunofluorescence...
August 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28821574/mosaic-loss-of-non-muscle-myosin-iia-and-iib-is-sufficient-to-induce-mammary-epithelial-proliferation
#2
Kim-Vy Nguyen-Ngoc, Vanesa L Silvestri, Dan Georgess, Amanda N Fairchild, Andrew J Ewald
The mammary epithelium elaborates through hormonally-regulated changes in proliferation, migration, and differentiation. Non-muscle myosin II (NMII) functions at the interface between contractility, adhesion, and signal transduction. It was therefore a plausible regulator of mammary morphogenesis. We tested the genetic requirement for NMIIA and NMIIB through deletion of the myosin heavy chains (NMHC) that confer specificity to the complex. Surprisingly, mosaic loss, but not ubiquitous loss, of NMHCIIA and IIB induced high levels of proliferation in 3D culture...
August 18, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28820470/adaption-of-fmdv-asia-1-to-suspension-culture-cell-resistance-is-overcome-by-virus-capsid-alterations
#3
Veronika Dill, Bernd Hoffmann, Aline Zimmer, Martin Beer, Michael Eschbaumer
Foot-and-mouth disease virus (FMDV) causes a highly contagious disease with catastrophic economic impact for affected countries. BHK21 suspension cells are preferred for the industrial production of FMDV vaccine antigen, but not all virus strains can be successfully propagated in these cells. Serotype Asia-1 is often affected by this phenomenon. In this study, the Asia-1 strain Shamir was used to examine viral, cellular and environmental factors that contribute to resistance to cell culture infection. Cell media composition, pH and ammonium chloride concentration did not affect Asia-1 differently than other serotypes...
August 18, 2017: Viruses
https://www.readbyqxmd.com/read/28818688/anodization-of-magnesium-for-biomedical-applications-processing-characterization-degradation-and-cytocompatibility
#4
Aaron F Cipriano, Jiajia Lin, Christopher Miller, Alan Lin, Mayra C Cortez Alcaraz, Pedro Soria, Huinan Liu
This article reports anodization of Mg in KOH electrolyte and the associated surface, degradation, and biological properties for bioresorbable implant applications. The preparation procedures for electrodes and anodization setup significantly enhanced reproducibility of samples. The results of anodization performed at the applied potentials of 1.8, 1.9, or 2.0 V showed that the sample anodized at 1.9 V and annealed, referred to as the 1.9 AA sample, had homogenous surface microstructure and elemental composition, and a reduction in corrosion current density in the electrochemical testing...
August 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28818532/myricetin-solid-lipid-nanoparticles-stability-assurance-from-system-preparation-to-site-of-action
#5
Dina M Gaber, Noha Nafee, Osama Y Abdallah
Myricetin - a natural flavonoid - has attracted a great interest due to its antioxidant and free-radical scavenging potential. However, its physicochemical instability critically impairs its dosage form design, evaluation and administration. In an attempt to protect from degradation, MYR was encapsulated into Gelucire-based solid lipid nanoparticles (SLNs). The impact of medium pH, processing temperature and different additives on the drug degradation either in free or nanoencapsulated form was assessed. MYR stability was further monitored in essential biorelevant fluids...
August 14, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28818083/optimization-of-the-biotechnological-production-of-a-novel-class-of-anti-mrsa-antibiotics-from-chitinophaga-sancti
#6
Amelie Beckmann, Stephan Hüttel, Viktoria Schmitt, Rolf Müller, Marc Stadler
BACKGROUND: Recently, the discovery of the elansolids, a group of macrolides, was reported. The molecules show activity against methicillin-resistant Staphylococcus aureus as well as other gram-positive organisms. This fact renders those substances a promising starting point for future chemical development. The active atropisomers A1/A2 are formed by macrolactonization of the biosynthesis product A3 but are prone to ring opening and subsequent formation of several unwanted side products...
August 17, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28816710/establishment-of-primary-cell-culture-from-ascitic-fluid-and-solid-tumor-obtained-from-epithelial-ovarian-carcinoma-patients
#7
Rajarshi Kar, Diwesh Chawla, Bindiya Gupta, Mohit Mehndiratta, Neelam Wadhwa, Rachna Agarwal
OBJECTIVE: Ovarian cancer is the seventh leading cause of cancer death worldwide. This is mainly due to late diagnosis and high rate of relapse and resistance following chemotherapy. In the present study, we describe simple and cost-effective method to establish primary culture from ascitic fluid and solid tumor obtained from epithelial ovarian carcinoma patient, which may provide a better tool for in vitro testing of drug sensitivity and designing individualized treatment protocol. METHODS: Complete Dulbecco modified Eagle medium (DMEM) was prepared by supplementing DMEM with 10% fetal bovine serum and antibiotics (ciprofloxacin and amphotericin B)...
August 16, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28816606/scale-up-of-puf-immobilized-fungal-chitosanase-lipase-preparation-production
#8
Katarzyna Struszczyk-Świta, Łukasz Stańczyk, Mirosława Szczęsna-Antczak, Tadeusz Antczak
Mucor circinelloides IBT-83 mycelium that exhibits both lipolytic (AL) and chitosanolytic (ACH) activities was immobilized into polyurethane foam (PUF) in a 30 L laboratory fermenter. The process of immobilization was investigated in terms of: the carrier porosity, its type, amount and shape, location inside the fermenter, mixing and aeration parameters during the culture, as well as downstream processing operations. The selected conditions allowed for immobilization of approx. 7 g of defatted and dried mycelium in 1 g of carrier, i...
August 17, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28815333/comparison-of-different-culture-conditions-for-smooth-muscle-cell-differentiation-of-human-umbilical-cord-vein-cd146-perivascular-cells
#9
Beyza Gökçinar-Yagci, Betül Çelebi-Saltik
Pericytes are CD146+ perivascular cells (PCs) that have multipotential differentiation capacity as mesenchymal stem cells. Beside their crucial roles in vascular development and blood flow regulation, they have ability to differentiate into vascular cell types in vivo. These properties make pericytes preferred cells in the field of vascular tissue engineering. Culture medium for in vitro differentiation of pericytes to vascular smooth muscle cells (SMCs) has not been defined yet. The aim of this study is to try different culture media for SMC differentiation of CD146+ PCs...
August 16, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28815297/leukocyte-reduced-platelet-rich-plasma-increases-proliferation-of-tenocytes-treated-with-prednisolone-a-cell-cycle-analysis
#10
Franz Hilber, Markus Loibl, Siegmund Lang, Maximilian Kerschbaum, Gero Brockhoff, Peter Angele, Johannes Zellner, Paul Schmitz, Michael Nerlich, Michael Worlicek
INTRODUCTION: The purpose of this study was to evaluate the effect of allogenic leukocyte-reduced platelet-rich plasma on human tenocytes after treatment with prednisolone and to develop a standardization of its application for clinical practice. METHODS: A leukocyte-reduced PRP was produced using the Arthrex Double Syringe (Arthrex, Inc., Naples, FL, USA), in a modified single-spin separation method. Human tenocytes were isolated from discarded rotator cuff segments...
August 16, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28814985/activation-of-endocannabinoid-receptor-2-as-a-mechanism-of-propofol-pretreatment-induced-cardioprotection-against-ischemia-reperfusion-injury-in-rats
#11
Hai-Jing Sun, Yan Lu, Hao-Wei Wang, Hao Zhang, Shuang-Ran Wang, Wen-Yun Xu, Hai-Long Fu, Xue-Ya Yao, Feng Yang, Hong-Bin Yuan
Propofol pretreatment before reperfusion, or propofol conditioning, has been shown to be cardioprotective, while its mechanism is unclear. The current study investigated the roles of endocannabinoid signaling in propofol cardioprotection in an in vivo model of myocardial ischemia/reperfusion (I/R) injury and in in vitro primary cardiomyocyte hypoxia/reoxygenation (H/R) injury. The results showed that propofol conditioning increased both serum and cell culture media concentrations of endocannabinoids including anandamide (AEA) and 2-arachidonoylglycerol (2-AG) detected by LC-MS/MS...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28814778/in-vivo-and-in-vitro-sex-differences-in-the-dendritic-morphology-of-developing-murine-hippocampal-and-cortical-neurons
#12
Kimberly P Keil, Sunjay Sethi, Machelle D Wilson, Hao Chen, Pamela J Lein
Altered dendritic morphology is common in neurodevelopmental disorders (NDDs), many of which show sex biases in prevalence, onset and/or severity. However, whether dendritic morphology varies as a function of sex in juvenile mice or primary neuronal cell cultures is largely unknown even though both are widely used models for studying NDDs. To address this gap, we quantified dendritic morphology in CA1 pyramidal hippocampal and adjacent somatosensory pyramidal cortical neurons from male and female postnatal day (P)28 C57BL/6J mice...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814743/nutritional-status-and-the-influence-of-tv-consumption-on-female-body-size-ideals-in-populations-recently-exposed-to-the-media
#13
Jean-Luc Jucker, Tracey Thornborrow, Ulrik Beierholm, D Michael Burt, Robert A Barton, Elizabeth H Evans, Mark A Jamieson, Martin J Tovée, Lynda G Boothroyd
Television consumption influences perceptions of attractive female body size. However, cross-cultural research examining media influence on body ideals is typically confounded by differences in the availability of reliable and diverse foodstuffs. 112 participants were recruited from 3 Nicaraguan villages that differed in television consumption and nutritional status, such that the contribution of both factors could be revealed. Participants completed a female figure preference task, reported their television consumption, and responded to several measures assessing nutritional status...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28813436/enhancement-of-the-production-of-l-glutaminase-an-anticancer-enzyme-from-aeromonas-veronii-by-adaptive-and-induced-mutation-techniques
#14
S Aravinth Vijay Jesuraj, Md Moklesur Rahman Sarker, Long Chiau Ming, S Marylin Jeya Praya, M Ravikumar, Wong Tin Wui
Microbial anti-cancer enzymes have been proven to be effective and economical agents for cancer treatment. Aeromonas veronii has been identified as a microorganism with the potential to produce L-glutaminase, an anticancer agent effective against acute lymphocytic leukaemia. In this study, a selective medium of Aeromonas veronii was used to culture the microorganism. Strain improvement was done by adaptive and induced mutational techniques. A selective minimal agar media was incorporated for the growth of the strain which further supports adaptive mutation...
2017: PloS One
https://www.readbyqxmd.com/read/28813021/enhanced-cell-growth-of-adipocyte-derived-mesenchymal-stem-cells-using-chemically-defined-serum-free-media
#15
Myung-Suk Lee, Christine Youn, Jeong Hyun Kim, Byoung Jun Park, Jongchan Ahn, Sungyoul Hong, Young-Deug Kim, Young Kee Shin, Sang Gyu Park
The multipotency and anti-inflammatory effects of mesenchymal stem cells (MSCs) make them attractive for cell therapy in regenerative medicine. A large number of MSCs is required for efficient therapy owing to the low homing efficiency of MSCs to target sites. Furthermore, owing to limitations in obtaining sufficient amounts of MSCs, in vitro expansion of MSCs that preserves their differentiation and proliferative potential is essential. The animal factor included in culture media also limits clinical application...
August 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28812894/enhanced-production-of-%C3%AE%C2%BA-carrageenase-and-%C3%AE%C2%BA-carrageenan-oligosaccharides-through-immobilization-of-thalassospira-sp-fjfst-332-with-magnetic-fe3o4-chitosan-microspheres
#16
Juanjuan Guo, Zhichang Zheng, Chi Chen, Xu Lu, Yi Zhang, Baodong Zheng
In this study, immobilized bacteria (IMB) microsphere was prepared by embedding κ-carrageenase-producing Thalassospira sp.Fjfst-332 (TF332) onto a magnetic Fe3O4-chitosan carrier. The performance of Fe3O4-chitosan carrier was optimized by comparing their bacteria immobilization capacity at different Fe3O4:chitosan ratios and temperatures, while the functions of IMB microspheres were characterized by examining their κ-carrageenase production at different temperatures, pH, and reuse cycles. At the 1:1 (w:w) Fe3O4:chitosan ratio, the Fe3O4-chitosan carriers possessed sufficient anchoring capacity for bacterial immobilization without significant compromise of their magnetism for magnetic separation of IMB from culture media...
August 16, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28811639/phylogeny-and-morphological-analyses-of-penicillium-section-sclerotiora-fungi-lead-to-the-discovery-of-five-new-species
#17
Xin-Cun Wang, Kai Chen, Zhao-Qing Zeng, Wen-Ying Zhuang
Phylogeny of Penicillium section Sclerotiora is still limitedly investigated. In this study, five new species of Penicillium are identified from the samples collected from different places of China, and named P. austrosinicum, P. choerospondiatis, P. exsudans, P. sanshaense and P. verrucisporum. The conidiophores of P. austrosinicum and P. exsudans are monoverticillate like most members of the section, while the rest species are biverticillate similar to the only two species P. herquei and P. malachiteum previously reported in the section Sclerotiora...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811116/identification-of-nocardia-streptomyces-and-tsukamurella-using-maldi-tof-ms-with-the-bruker-biotyper
#18
Melanie L Yarbrough, William Lainhart, Carey-Ann D Burnham
Nocardia species are the most commonly isolated aerobic actinomycetes from human clinical specimens. Our objective was to assess the identification of clinically relevant actinomycetes using the Bruker Biotyper MALDI-TOF system, including comparison of extraction methods, Biotyper library versions, score cutoffs, and media. Banked Streptomyces (n=10), Tsukamurella (n=2), and Nocardia isolates (n=60) were cultured and extracted using three methods: mycobacterial extraction, ethanol formic acid extraction, or direct on-target extraction...
July 1, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28810809/optimization-of-human-nk-cell-manufacturing-fully-automated-separation-improved-i-ex-vivo-i-expansion-using-il-21-with-autologous-feeder-cells-and-generation-of-anti-cd123-car-expressing-effector-cells
#19
Stephan Klöß, Olaf Oberschmidt, Michael Morgan, Julia Dahlke, Lubomir Arseniev, Volker Huppert, Markus Granzin, Tanja Gardlowski, Nadine Matthies, Stefanie Soltenborn, Axel Schambach, Ulrike Koehl
BACKGROUND AND AIMS: The administration of ex-vivo expanded Natural killer (NK) cells as potential antitumor effector cells appears to be suitable for effector cell-based immunotherapies in high-risk cancer patients. However, the GMP-conform manufacturing of clinical-grade NK cells at sufficiently high numbers represent a great challenge. Therefore, we improved and optimized previous expansion protocols for those effector cells through the use of newly developed culture medium, IL-21 and autologous feeder cells...
August 16, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28810414/body-image-and-sexual-orientation-the-experiences-of-lesbian-and-bisexual-women
#20
Marie L Smith, Elina Telford, Jeremy J Tree
Western cultures promote a thin and curvaceous ideal body size that most women find difficult to achieve by healthy measures, resulting in poor body image and increased risk for eating pathology. Research focusing on body image in lesbian and bisexual women has yielded inconsistent results. In total, 11 lesbian and bisexual women were interviewed regarding their experiences with body image. Interpretative phenomenological analysis revealed that these women experienced similar mainstream pressures to conform to a thin body ideal...
February 1, 2017: Journal of Health Psychology
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