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https://www.readbyqxmd.com/read/29453918/high-dose-of-histone-deacetylase-inhibitors-affects-insulin-secretory-mechanism-of-pancreatic-beta-cell-line
#1
Eiji Yamato
OBJECTIVE: Histone deacytylase inhibitors (HDACis) inhibit the deacetylation of the lysine residue of proteins, including histones, and regulate the transcription of a variety of genes. Recently, HDACis have been used clinically as anti-cancer drugs and possible anti-diabetic drugs. Even though HDACis have been proven to protect the cytokine-induced damage of pancreatic beta cells, evidence also shows that high doses of HDACis are cytotoxic. In the present study, we, therefore, investigated the eff ect of HDACis on insulin secretion in a pancreatic beta cell line...
January 1, 2018: Endocrine Regulations
https://www.readbyqxmd.com/read/29453616/laser-induced-plasma-spectroscopy-lips-use-of-a-geological-tool-in-assessing-bone-mineral-content
#2
László Andrássy, Izabella Gomez, Ágnes Horváth, Katalin Gulyás, Zsófia Pethö, Balázs Juhász, Harjit Pal Bhattoa, Zoltan Szekanecz
Bone may be similar to geological formulations in many ways. Therefore, it may be logical to apply laser-based geological techniques in bone research. The mineral and element oxide composition of bioapatite can be estimated by mathematical models. Laser-induced plasma spectrometry (LIPS) has long been used in geology. This method may provide a possibility to determine the composition and concentration of element oxides forming the inorganic part of bones. In this study, we wished to standardize the LIPS technique and use mathematical calculations and models in order to determine CaO distribution and bone homogeneity using bovine shin bone samples...
February 17, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29453560/establishment-of-primary-culture-of-sertoli-cells
#3
Raquel L Bernardino, Marco G Alves, Pedro F Oliveira
The successful isolation and culture of Sertoli cells depend on a series of delicate processes of mechanical isolation and enzymatic digestion of the testicular tissue, taking advantage of an array of enzymes (such as DNAse, collagenase, and pancreatin) in order to digest the extracellular matrix components. The complexity of these processes may present some differences depending on the origin of the testicular sample (whole tissue or biopsy) and of the species in question. Rat and mouse Sertoli cells are obtained by a similar protocol, whereas bovine and human Sertoli cells require a more extensive mechanical and enzymatic processing...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29453364/biogeographical-differences-in-the-influence-of-maternal-microbial-sources-on-the-early-successional-development-of-the-bovine-neonatal-gastrointestinal-tract
#4
Carl J Yeoman, Suzanne L Ishaq, Elena Bichi, Sarah K Olivo, James Lowe, Brian M Aldridge
The impact of maternal microbial influences on the early choreography of the neonatal calf microbiome were investigated. Luminal content and mucosal scraping samples were collected from ten locations in the calf gastrointestinal tract (GIT) over the first 21 days of life, along with postpartum maternal colostrum, udder skin, and vaginal scrapings. Microbiota were found to vary by anatomical location, between the lumen and mucosa at each GIT location, and differentially enriched for maternal vaginal, skin, and colostral microbiota...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29453221/h3k9-demethylase-kdm4e-is-an-epigenetic-regulator-for-bovine-embryonic-development-and-a-defective-factor-for-nuclear-reprogramming
#5
Xin Liu, Yizhi Wang, Yuanpeng Gao, Jianmin Su, Jingcheng Zhang, Xupeng Xing, Chuan Zhou, Kezhen Yao, Quanli An, Yong Zhang
Aberrant epigenetic reprogramming often results in developmental defects in somatic cell nuclear transfer (SCNT) embryos during embryonic genome activation (EGA). Bovine eight-cell SCNT embryos exhibit global hypermethylation of histone H3 lysine 9 tri- and di-methylation (H3K9me3/2), but the intrinsic reason for this remains elusive. Here, we provide evidence that two H3K9 demethylase genes, lysine-specific demethylase 4D ( KDM4D ) and 4E ( KDM4E ), are related to active H3K9me3/2 demethylation in in vitro fertilized (IVF) embryos and are deficiently expressed in cloned embryos at the time of EGA...
February 16, 2018: Development
https://www.readbyqxmd.com/read/29452850/evaluation-of-dot-blot-test-for-serological-diagnosis-of-bovine-brucellosis
#6
Carla Resende Bastos, Luis Antonio Mathias, Márcia Mariza Gomes Jusi, Renata Ferreira Dos Santos, Glaucenyra Cecília Pinheiro da Silva, Marcos Rogério André, Rosangela Zacarias Machado, Karina Paes Bürger
The objective of this study was to standardize and validate the dot-blot test for the serological diagnosis of bovine brucellosis, compare the results with those found in the 2-mercaptoethanol (2-ME) and complement fixation test (CF), and estimate the relative sensitivity and specificity of the dot-blot compared to these tests. Fifty bovine blood serum samples were used for the test standardization, and 1315 samples were used for evaluation and comparison between the tests; the results were compared using the Kappa indicator...
February 13, 2018: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29452786/preliminary-results-of-a-single-arm-pilot-study-to-assess-the-safety-and-efficacy-of-visnadine-prenylflavonoids-and-bovine-colostrum-in-postmenopausal-sexually-active-women-affected-by-vulvovaginal-atrophy
#7
Antonio Simone Laganà, Salvatore Giovanni Vitale, Lily Stojanovska, Irene Lambrinoudaki, Vasso Apostolopoulos, Benito Chiofalo, Laura Rizzo, Francesca Basile
This single-arm pilot study enrolled 47 post-menopausal women affected by vulvovaginal atrophy (VVA). The Vaginal Health Index Score (VHIS) was evaluated for all women and all completed the Female Sexual Function Index (FSFI) questionnaire at baseline (T0) and after 15 days of vaginal cream treatment with one application per day (T1). Following treatment there was a significant improvement in all VHIS parameters and total score (p < 0.0001). Similarly, there was a significant improvement on four FSFI domains (lubrication, orgasm, satisfaction and pain) and total score (p = 0...
March 2018: Maturitas
https://www.readbyqxmd.com/read/29452369/in-search-of-the-best-xenogeneic-material-for-a-paediatric-conduit-an-analysis-of-clinical-data
#8
Nataliya R Nichay, Irina Y Zhuravleva, Yuriy Y Kulyabin, Tatyana P Timchenko, Alexey V Voitov, Elena V Kuznetsova, Ilia A Soynov, Alexey V Zubritskiy, Alexander V Bogachev-Prokophiev, Alexander M Karaskov
OBJECTIVES: In this study, we aimed to determine the incidence of reintervention and calcification of xenografts in paediatric patients who underwent placement of the right ventricle-to-pulmonary artery valved conduits. METHODS: We retrospectively analysed clinical data of paediatric patients (1 day-18 years) who underwent right ventricular outflow tract reconstruction using xenograft from 2000 to 2016 at a single centre. RESULTS: A total of 301 patients underwent the placement of 337 xenografts, including glutaraldehyde-treated bovine jugular vein (n = 171, 50...
February 14, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29452196/staphylococcus-aureus-induces-tgf-%C3%AE-1-and-bfgf-expression-through-the-activation-of-ap-1-and-nf-%C3%AE%C2%BAb-transcription-factors-in-bovine-mammary-epithelial-cells
#9
Jianmei Wu, Yulin Ding, Jinling Wang, Fenglong Wang
Staphylococcus aureus is a common Gram-positive pathogen that causes bovine mastitis, a persistent infection of the bovine mammary gland. Bovine mammary epithelial cells (BMEC) are important parenchymal cells of the bovine mammary gland. To better understand the importance of BMEC and the roles of the TLR-NF-κBand TLR-AP-1 signaling pathways in the regulation of S. aureus-associated mastitis and mammary fibrosis, BMEC cultured in vitro were stimulated with different concentrations of heat-inactivated S. aureus to analyze the gene and protein expression and production of toll-like receptor 2 (TLR2), toll-like receptor 4 (TLR4), transforming growth factor beta 1 (TGF-β1), basic fibroblast growth factor (bFGF) as well as the protein expression of nuclear factor-kappa B (NF-κB) and activation protein-1 (AP-1) by means of quantitative polymerase chain reaction (qPCR) and western blotting, respectively...
February 13, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29451927/a-retrospective-tomographic-and-histologic-analysis-of-horizontal-bone-augmentation-in-maxillary-atrophic-ridges-using-resorbable-membrane-with-anorganic-bovine-bone-derived-mineral-and-plasma-rich-in-growth-factors
#10
Massimo Lorenzetti, Maurizio Vono, Virginia Lorenzetti
A total of six patients treated from 2010 to 2014, having a knife-edge ridge (Cawood-Howell Class IV resorbed ridges) and requiring an implant-prosthetic rehabilitation, were selected. Tomographic measurement of the edentulous ridges was performed before grafting and after implant placement. At 6 months postgraft, a total of 41 implants had been inserted, 17 in the posterior region, 12 in the central region, and 12 in the anterior region. No surgical or healing complications were recorded, and the prostheses were loaded 6 to 9 months after implant placement...
February 16, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29451716/improving-growth-for-infants-%C3%A2-1250-grams-receiving-an-exclusive-human-milk-diet
#11
Robert K Huston, Andrea M Markell, Elizabeth A McCulley, Stuart K Gardiner, Sean L Sweeney
BACKGROUND: An exclusive human milk diet (EHM) fortified with human milk-based fortifier decreases necrotizing enterocolitis (NEC) compared to maternal milk supplemented with preterm formula and bovine fortifier (PTF). Growth has been less with EHM and also maternal milk supplemented with donor human milk and bovine fortifier (HMBF). The objective was to evaluate the effect of a standardized feeding protocol on the growth of infants ≤1250 g birth weight supported with EHM and HMBF. The effect on the incidence of NEC was also evaluated...
February 16, 2018: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/29451651/demetallization-of-enterococcus-faecalis-biofilm-a-preliminary-study
#12
Carlos Estrela, Rodrigo Costa E Silva, Roberta Cerasi Urban, Pablo José Gonçalves, Júlio A Silva, Cyntia R A Estrela, Jesus Djalma Pecora, Ove A Peters
Objectives To determine the concentration of calcium, iron, manganese and zinc ions after the application of chelator to Enterococcus faecalis biofilms. Material and Methods Fifty bovine maxillary central incisors were prepared and inoculated with E. faecalis for 60 days. The following were used as irrigation solutions: 17% EDTA (pH 3, 7 and 10), 2.5% sodium hypochlorite (NaOCl) combined with 17% EDTA (pH 3, 7 and 10), distilled water (pH 3, 7 and 10), and 2.5% NaOCl. Each solution was kept in the root canal for five minutes...
2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29451594/nontuberculous-mycobacteria-in-milk-from-positive-cows-in-the-intradermal-comparative-cervical-tuberculin-test-implications-for-human-tuberculosis-infections
#13
Carmen Alicia Daza Bolaños, Marília Masello Junqueira Franco, Antonio Francisco Souza Filho, Cássia Yumi Ikuta, Edith Mariela Burbano-Rosero, José Soares Ferreira Neto, Marcos Bryan Heinemann, Rodrigo Garcia Motta, Carolina Lechinski de Paula, Amanda Bonalume Cordeiro de Morais, Simony Trevizan Guerra, Ana Carolina Alves, Fernando José Paganini Listoni, Márcio Garcia Ribeiro
Although the tuberculin test represents the main in vivo diagnostic method used in the control and eradication of bovine tuberculosis, few studies have focused on the identification of mycobacteria in the milk from cows positive to the tuberculin test. The aim of this study was to identify Mycobacterium species in milk samples from cows positive to the comparative intradermal test. Milk samples from 142 cows positive to the comparative intradermal test carried out in 4,766 animals were aseptically collected, cultivated on Lowenstein-Jensen and Stonebrink media and incubated for up to 90 days...
2018: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/29450927/histological-and-immunohistochemical-evaluation-of-granulosa-cells-during-different-stages-of-folliculogenesis-in-bovine-ovaries
#14
App Teh, U Z Izzati, K Mori, N Fuke, T Hirai, G Kitahara, R Yamaguchi
Bovine granulosa cells (GC) vary in their morphological aspect during different stages of folliculogenesis. In this study, 10 morphologically normal bovine ovaries were collected to study the structural aspects of different stages of GC using intermediate filament protein antibodies including cytokeratin AE1/AE3 (AE1/AE3), vimentin, nectin-4 and desmin. Hormonal immunolocalization was assessed using the immunomarkers anti-Müllerian hormone (AMH) and inhibin alpha. In addition, tumour markers and proliferation markers using c-erbB-2 oncoprotein and proliferating cell nuclear antigen, respectively, were investigated...
February 15, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29449597/substructure-activity-relationship-studies-on-antibody-recognition-for-phenylurea-compounds-using-competitive-immunoassay-and-computational-chemistry
#15
Fuyuan Zhang, Bing Liu, Guozhen Liu, Yan Zhang, Junping Wang, Shuo Wang
Based on the structural features of fluometuron, an immunizing hapten was synthesized and conjugated to bovine serum albumin as an immunogen to prepare a polyclonal antibody. However, the resultant antibody indicated cross-reactivity with 6 structurally similar phenylurea herbicides, with binding activities (expressed by IC 50 values) ranging from 1.67 µg/L to 42.71 µg/L. All 6 phenylurea herbicides contain a common moiety and three different substitutes. To understand how these three different chemical groups affect the antibody-phenylurea recognition activity, quantum chemistry, using density function theory (DFT) at the B3LYP/6-311++ G(d,p) level of theory, was employed to optimize all phenylurea structures, followed by determination of the 3D conformations of these molecules, pharmacophore analysis, and molecular electrostatic potential (ESP) analysis...
February 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29449403/high-quality-complete-genome-sequences-of-three-bovine-shiga-toxin-producing-escherichia-coli-o177-h-flic-h25-isolates-harboring-virulent-stx2-and-multiple-plasmids
#16
Haiqing Sheng, Mingrui Duan, Samuel S Hunter, Scott A Minnich, Matthew L Settles, Daniel D New, Jennifer R Chase, Matthew W Fagnan, Carolyn J Hovde
Shiga toxin-producing Escherichia coli (STEC) bacteria are zoonotic pathogens. We report here the high-quality complete genome sequences of three STEC O177:H- ( fliC H25 ) strains, SMN152SH1, SMN013SH2, and SMN197SH3. The assembled genomes consisted of one optical map-verified circular chromosome for each strain, plus two plasmids for SMN013SH2 and three plasmids for SMN152SH1 and SMN197SH3, respectively.
February 15, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29448951/t-arms-pcr-genotyping-of-snp-rs445709131-using-thermostable-strand-displacement-polymerase
#17
Rafeeque R Alyethodi, Umesh Singh, Sushil Kumar, Rani Alex, Rajib Deb, Gyanendra S Sengar, T V Raja, B Prakash
OBJECTIVES: In a recent publication, we reported the successful use of tetra primer-amplification refractory mutation system based polymerase chain reaction (T-ARMS-PCR) for genotyping of rs445709131-SNP responsible for the bovine leukocyte adhesion deficiency (BLAD) in cattle. The SNP is characterized by higher GC content of the surrounding region, hence, the previous protocol utilized dimethyl sulfoxide as PCR enhancer. Here, the reaction cocktail was modified with the use of thermostable strand displacement polymerase (SD polymerase) instead of commonly used Taq DNA Polymerase...
February 15, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29448888/cross-linked-cholecyst-derived-extracellular-matrix-for-abdominal-wall-repair
#18
Jeffrey Chee Yean Chan, Krishna Burugapalli, Yi-Shiang Huang, Jack L Kelly, Abhay Pandit
Abdominal wall repair frequently utilizes either non-degradable or bio-degradable meshes, which are found to stimulate undesirable biological tissue responses or which possess suboptimal degradation rate. In this study, a biologic mesh prototype made from carbodiimide-cross-linked cholecyst-derived extracellular matrix (EDCxCEM) was compared with small intestinal submucosa (Surgisis®), cross-linked bovine pericardium (Peri-Guard®), and polypropylene (Prolene®) meshes in an in vivo rabbit model. The macroscopic appearance and stereological parameters of the meshes were evaluated...
February 16, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29448602/preparation-of-silica-coated-magnetic-nanoparticles-for-bioseparation
#19
Dae-Won Lee, Hira Fatima, Kyo-Seon Kim
Magnetic nanoparticles have been intensively developed and applied in several biomedical applications such as targeted delivery, drug therapy, hyperthermia, magnetic resonance imaging and bioseparation etc. This work describes a simple and convenient method to synthesize silica coated Fe3O4 nanoparticles which have the potential to be used in the bioseparation of fetuin from fetal bovine serum and albumin from the egg. In this work, uniform Fe3O4 particles were prepared through the one-pot solvothermal process at 200 °C for 12 h using a sole iron precursor (FeCl3 · 6H2O) and then were coated with SiO2 to prepare silica coated Fe3O4 nanoparticles by hydrolysis and condensation of tetraethyl orthosilicate in ethanol and H2O medium...
February 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29448227/alignment-of-nematic-liquid-crystals-decorated-with-gemini-surfactants-and-interaction-of-proteins-with-gemini-surfactants-at-fluid-interfaces
#20
Tongtong Tian, Qi Kang, Tao Wang, Jianhong Xiao, Li Yu
A series of cationic gemini surfactants with diverse chemical structures, that is, imidazolium-based gemini surface active ionic liquids (gemini IM-SAILs) with different alkyl chain length or spacer length, viz. 1,s-bis(3-alkylimidazolium-1-yl) ethane bromide ([C n -s-C n im]Br 2 ; s = 2, n = 6, 8, 10, 12, 16; n = 12, s = 2, 4, 6, 10), and quaternary ammonium-based gemini surfactants (gemini QASaa) with different symmetries, viz. 1,2-bisalkylquaternary ammonium bromide (m-2-n; m = 12, 14, 16, n = 8, 10, 12, m + n = 24), were synthesized and utilized to decorate aqueous/liquid crystal interfaces (ALI)...
February 9, 2018: Journal of Colloid and Interface Science
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