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https://www.readbyqxmd.com/read/28933863/chemical-vapor-deposition-of-thin-conductive-and-fouling-resistant-polymeric-films
#1
Minghui Wang, Peter Kovacik, Karen K Gleason
Fouling has been a persistent issue within applications ranging from membrane separation to biomedical implantation. Research to date focuses on fouling resistant coatings, where electrical conductivity is unnecessary. In this study, we report the synthesis of multifunctional thin films with both fouling-resistance and electrical conductivity for their potential applications in electrolysis based self-cleaning of separation membranes and in the field of bioelectronics. This unique combination of properties results in multifunctional coatings that are a zwitterionic derivative of the intrinsically conductive polymer poly(3,4-ethylenedioxythiophene) (PEDOT) synthesized via oxidative chemical vapor deposition (oCVD)...
September 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28932054/darier-disease-a-rare-genodermatosis
#2
Hema Suryawanshi, Akshay Dhobley, Aparna Sharma, Pramod Kumar
Darier disease (DD), also known as keratosis follicularis or dyskeratosis follicularis, is a rare autosomal dominant genodermatosis with high penetrance and variable expressivity. It is caused by mutations of ATP2A2 gene which encodes the sarco/endoplasmic reticulum Ca(2+) ATPase isoform 2. It is clinically manifested by hyperkeratotic papules primarily affecting seborrheic areas on the head, neck and thorax, with less frequent involvement of the oral mucosa. When oral manifestations are present, they primarily affect the palatal and alveolar mucosa, are usually asymptomatic and are discovered in routine dental examination...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28932035/epigenetics-in-oral-squamous-cell-carcinoma
#3
REVIEW
K N Hema, T Smitha, H S Sheethal, S Angeline Mirnalini
Oral squamous cell carcinoma (OSCC) is the most common type of oral neoplasm, accounting for over 90% of all oral malignancies and 38% of head and neck tumors. Worldwide, OSCC is the eighth most common human cancer, with more than 500,000 new cases being diagnosed every year with a fairly onerous prognosis, encouraging further research on factors that might modify disease outcome. Genetic and/or environmental risk factors associated with the development of oral cancer have been sufficiently understood (smoking, alcohol, betel, diet, living habits, etc...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28932031/cytomorphometric-analysis-of-gingival-epithelium-and-buccal-mucosa-cells-in-type-2-diabetes-mellitus-patients
#4
Manisha Sahu, Hema Suryawanshi, Sushruth Nayak, Pramod Kumar
BACKGROUND: The global prevalence of type 2 diabetes continues to rise. Interest has been increasing recently in noninvasive diagnostic procedure. Hence, an attempt has been made by the present study to analyze the changes in cytomorphometry in exfoliated buccal and gingival mucosa cells in type 2 diabetic patients. AIM: The aim of this study was to analyze the cytomorphometric changes in exfoliated cells of gingiva and buccal mucosa as an adjunct to diagnosis of diabetes...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28930432/injectable-stem-cell-laden-open-porous-microgels-that-favour-adipogenesis-in-vitro-and-in-vivo-evaluation
#5
Pengfei Xia, Kunxi Zhang, Yan Gong, Guifei Li, Shifeng Yan, Jingbo Yin
Microgels, with large surface area per volume, show great advantages in adipose tissue engineering due to their injectability and similarity with natural extracellular matrix. However, to date, no studies have tried applying microgels to adipose tissue regeneration. Herein, based on double bonded poly-(L-glutamic acid)-g-2-Hydroxyethyl methacrylate (PLGA-g-HEMA) and maleic anhydride-modified chitosan (MCS), an open porous microgel with high hydrophilicity and great injectability is successfully prepared (microgels diameter of 200-300 μm, pore diameter of 38 μm, and porosity of 88...
September 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28928577/a-prospective-observational-study-to-evaluate-the-role-of-gabapentin-as-preventive-analgesic-in-thyroidectomy-under-general-anesthesia
#6
Vadakkoot Raghavan Hema, Konnanath Thekkethil Ramadas, Kannammadathy Poulose Biji, Suseela Indu, Aravind Arun
BACKGROUND: Effective management of postoperative pain is a part of well-organized perioperative care, which helps in reduced morbidity and improved patient satisfaction. Preventive analgesia can reduce acute and chronic pain by blocking the noxious inputs to pain pathways, preventing sensitization. Studies have reported efficacy of gabapentin as a preventive analgesic in perioperative pain. In this study, we aimed to determine whether preoperative gabapentin reduced postoperative pain and tramadol consumption after thyroidectomy under general anesthesia...
July 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28928067/silk-fibres-grafted-with-2-hydroxyethyl-methacrylate-hema-and-4-hydroxybutyl-acrylate-hba-for-biomedical-applications
#7
Paola Taddei, Michele Di Foggia, Simona Martinotti, Elia Ranzato, Irene Carmagnola, Valeria Chiono, Masuhiro Tsukada
Silk fibroin may be chemically modified by grafting, with the purpose of improving its properties according to the desired function. In this study, silk fabrics from Bombyx mori silk fibres were grafted with 2-hydroxyethyl methacrylate (HEMA), as well as a binary mixture of HEMA and 4-hydroxybutyl acrylate (HBA). The samples were then electrospun from trifluoroacetic acid and treated with aqueous methanol. The % weight gains ascribable to HEMA and HBA were successfully determined through Raman spectroscopy...
September 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28925887/design-optimize-and-characterize-granisetron-hcl-loaded-nano-gel-for-transdermal-delivery
#8
Vikash Kumar, Hema Chaudhary, Geeta Aggarwal
The aim of study was to design, statistically optimize and characterize Granisetron HCl loaded transfersomal gel for transdermal delivery, in order to overcome the side effects associated with oral delivery. A response surface methodology experimental design was applied for the optimization of transfersomes, using Box-Behnken experimental design. Phospholipid-90G, sodium deoxycholate and sonication time, each at three levels, were selected as independent variables, and while entrapment efficiency, vesicle size and transdermal flux were identified as dependent variables...
September 15, 2017: Pharmaceutical Nanotechnology
https://www.readbyqxmd.com/read/28906306/predicting-early-mortality-following-hip-fracture-surgery-the-hip-fracture-estimator-of-mortality-amsterdam-hema
#9
Julian Karres, Noera Kieviet, Jan-Peter Eerenberg, Bart C Vrouenraets
OBJECTIVES: Early mortality following hip fracture surgery is high and pre-operative risk assessment for the individual patient is challenging. A risk model could identify patients in need of more intensive perioperative care, provide insight in the prognosis and allow for risk-adjustment in audits. This study aimed to develop and validate a risk prediction model for 30-day mortality following hip fracture surgery: the Hip fracture Estimator of Mortality Amsterdam (HEMA). METHODS: Data on 1050 consecutive patients undergoing hip fracture surgery between 2004 and 2010 were retrospectively collected and randomly split into a development cohort (746 patients) and validation cohort (304 patients)...
September 11, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28894264/seasonal-variation-of-the-dominant-allergenic-fungal-aerosols-one-year-study-from-southern-indian-region
#10
Hema Priyamvada, Raj Kamal Singh, M Akila, R Ravikrishna, Rama Shanker Verma, Sachin S Gunthe
Quantitative estimations of fungal aerosols are important to understand their role in causing respiratory diseases to humans especially in the developing and highly populated countries. In this study we sampled and quantified the three most dominantly found allergenic airborne fungi, Aspergillus fumigatus, Cladosporium cladosporioides, and Alternaria alternata from ambient PM10 samples using the quantitative PCR (qPCR) technique in a southern tropical Indian region, for one full year. Highest concentrations of A...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28887499/transcription-factors-nrf2-and-hsf1-have-opposing-functions-in-autophagy
#11
Sharadha Dayalan Naidu, Dina Dikovskaya, Egle Gaurilcikaite, Elena V Knatko, Zachary R Healy, Hema Mohan, Glenn Koh, Axel Laurell, Graeme Ball, David Olagnier, Laureano de la Vega, Ian G Ganley, Paul Talalay, Albena T Dinkova-Kostova
Autophagy plays a critical role in the maintenance of cellular homeostasis by degrading proteins, lipids and organelles. Autophagy is activated in response to stress, but its regulation in the context of other stress response pathways, such as those mediated by heat shock factor 1 (HSF1) and nuclear factor-erythroid 2 p45-related factor 2 (NRF2), is not well understood. We found that the Michael acceptor bis(2-hydoxybenzylidene)acetone (HBB2), a dual activator of NRF2 and HSF1, protects against the development of UV irradiation-mediated cutaneous squamous cell carcinoma in mice...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28877280/mechanical-properties-water-sorption-characteristics-and-compound-release-of-grape-seed-extract-incorporated-resins
#12
Don Jeevanie Epasinghe, Cynthia Kar Yung Yiu, Michael Francis Burrow
Objective: This study evaluated the effect of grape seed extract (GSE) incorporation on the mechanical properties, water sorption, solubility, and GSE release from the experimental adhesive resins. Material and Methods: An experimental comonomer mixture, consisting of 40% Bis-GMA, 30% Bis MP, 28% HEMA, 0.26% camphorquinone and 1% EDMAB, was used to prepare four GSE-incorporated adhesive resins at concentrations of 0.5, 1, 1.5, and 2 wt%. The neat resin without GSE was used as the control...
July 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28866022/eradication-of-ht-29-colorectal-adenocarcinoma-cells-by-controlled-photorelease-of-co-from-a-co-releasing-polymer-photocorp-1-triggered-by-visible-light-through-an-optical-fiber-based-device
#13
Miguel N Pinto, Indranil Chakraborty, Cosme Sandoval, Pradip K Mascharak
The gaseous signaling molecule carbon monoxide (CO) has recently been recognized for its wide range of physiological activity as well as its antineoplastic properties. However, site-specific delivery of this noxious gas presents a major challenge in hospital settings. In this work, a visible light-sensitive CO-releasing molecule (photoCORM) derived from manganese(I) and 2-(quinolyl)benzothiazole (qbt) namely, [Mn(CO)3(qbt)(4-vpy)](CF3SO3) (1), has been co-polymerized within a gas-permeable HEMA/EGDMA hydrogel...
September 1, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28864908/antitumor-activity-and-expression-profiles-of-genes-induced-by-sulforaphane-in-human-melanoma-cells
#14
Paola Arcidiacono, Francesco Ragonese, Anna Stabile, Alessandra Pistilli, Ekaterina Kuligina, Mario Rende, Ugo Bottoni, Stefano Calvieri, Andrea Crisanti, Roberta Spaccapelo
PURPOSE: Human melanoma is a highly aggressive incurable cancer due to intrinsic cellular resistance to apoptosis, reprogramming, proliferation and survival during tumour progression. Sulforaphane (SFN), an isothiocyanate found in cruciferous vegetables, plays a role in carcinogenesis in many cancer types. However, the cytotoxic molecular mechanisms and gene expression profiles promoted by SFN in human melanoma remain unknown. METHODS: Three different cell lines were used: two human melanoma A375 and 501MEL and human epidermal melanocytes (HEMa)...
September 1, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28859889/development-of-a-metal-chelate-polyhydroxyethylmethacrylate-monolith-capillary-for-selective-depletion-of-immunoglobulin-g-from-human-plasma-for-proteomics
#15
Ashish Khaparde, Vijayalakshmi M A, Kishore K R Tetala
In this study, we report the development of a new poly HEMA (HEMA-co-DEGDA-co-DATD) monolith capillary functionalized with "IDA-Cu (II) complex". Of the two tested crosslinkers (methylene bisacrylamide (MBAAm) and diethylene glycol diacrylate (DEGDA)), presence of DEGDA has enhanced the monolith rigidity. Structural assembly of these monoliths are organized with highly interconnected large globule like structures and dominated by macropore region. Iminodiacetic acid (IDA) immobilization was performed using two chemical approaches (i...
August 23, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28840728/site-specific-fluorescence-depolarization-kinetics-distinguishes-the-amyloid-folds-responsible-for-distinct-yeast-prion-strains
#16
Dominic Narang, Hema M Swasthi, Sayanta Mahapatra, Samrat Mukhopadhyay
The prion determinant of a yeast prion protein, Sup35NM, assembles into β-rich amyloid fibrils that switch the nonprion [psi(-)] state to the prion [PSI(+)] state of yeast. Previous studies showed that two distinct forms of amyloids (Sc4 and Sc37), generated in vitro at two different temperatures (4 and 37 °C), recapitulate the strain phenomenon in Saccharomyces cerevisiae. Sc4 demonstrates a strong [PSI(+)] phenotype, whereas Sc37 shows a weak phenotype. To discern the residue-specific structural and dynamical attributes associated with the amyloids that display strain diversity, we took advantage of the nonoccurrence of tryptophan (Trp) in the NM-domain and created 18 single-Trp variants spanning the entire polypeptide length...
September 5, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28839146/piezo1-channels-sense-whole-body-physical-activity-to-reset-cardiovascular-homeostasis-and-enhance-performance
#17
Baptiste Rode, Jian Shi, Naima Endesh, Mark J Drinkhill, Peter J Webster, Sabine J Lotteau, Marc A Bailey, Nadira Y Yuldasheva, Melanie J Ludlow, Richard M Cubbon, Jing Li, T Simon Futers, Lara Morley, Hannah J Gaunt, Katarzyna Marszalek, Hema Viswambharan, Kevin Cuthbertson, Paul D Baxter, Richard Foster, Piruthivi Sukumar, Andrew Weightman, Sarah C Calaghan, Stephen B Wheatcroft, Mark T Kearney, David J Beech
Mammalian biology adapts to physical activity but the molecular mechanisms sensing the activity remain enigmatic. Recent studies have revealed how Piezo1 protein senses mechanical force to enable vascular development. Here, we address Piezo1 in adult endothelium, the major control site in physical activity. Mice without endothelial Piezo1 lack obvious phenotype but close inspection reveals a specific effect on endothelium-dependent relaxation in mesenteric resistance artery. Strikingly, the Piezo1 is required for elevated blood pressure during whole body physical activity but not blood pressure during inactivity...
August 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28835602/non-biodegradable-polymer-particles-for-drug-delivery-a-new-technology-for-bio-active-restorative-materials
#18
Satoshi Imazato, Haruaki Kitagawa, Ririko Tsuboi, Ranna Kitagawa, Pasiree Thongthai, Jun-Ichi Sasaki
To develop dental restorative materials with "bio-active" functions, addition of the capability to release active agents is an effective approach. However, such functionality needs to be attained without compromising the basic properties of the restorative materials. We have developed novel non-biodegradable polymer particles for drug delivery, aimed for application in dental resins. The particles are made using 2-hydroxyethyl methacrylate (HEMA) and a cross-linking monomer trimethylolpropane trimethacrylate (TMPT), with a hydrophilic nature to adsorb proteins or water-soluble antimicrobials...
August 24, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28830894/endothelial-ship2-suppresses-nox2-nadph-oxidase-dependent-vascular-oxidative-stress-endothelial-dysfunction-and-systemic-insulin-resistance
#19
Nicole T Watt, Matthew C Gage, Peysh A Patel, Hema Viswambharan, Piruthivi Sukumar, Stacey Galloway, Nadira Y Yuldasheva, Helen Imrie, Andrew Mn Walker, Kathryn J Griffin, Natalia Makava, Anna Skromna, Katherine Bridge, David J Beech, Stéphane Schurmans, Stephen B Wheatcroft, Mark T Kearney, Richard M Cubbon
Shc homology 2-containing inositol 5´ phosphatase-2 (SHIP2) is as lipid phosphatase which inhibits insulin signaling downstream of phosphoinositide-3-kinase (PI3K); its role in vascular function is poorly understood. To examine its role in endothelial cell (EC) biology, we generated mice with catalytic inactivation of one SHIP2 allele selectively in EC (ECSHIP2(Δ/+)). Hyperinsulinemic euglycemic clamping studies revealed ECSHIP2(Δ/+) were resistant to insulin-stimulated glucose uptake in adipose tissue and skeletal muscle, compared with littermate controls...
August 22, 2017: Diabetes
https://www.readbyqxmd.com/read/28827848/biocompatibility-evaluation-of-four-dentin-adhesives-used-as-indirect-pulp-capping-materials
#20
Olga Cortés, Antonia Alcaina, Antonia Bernabé
BACKGROUND: In many cases, the indirect pulp treatment (IPT) is an acceptable treatment for deciduous teeth with reversible pulp inflammation. Various medicaments have been used for IPT, ranging from calcium hydroxide and glass ionomers to dentin adhesives. OBJECTIVE: This in vitro trial aimed to measure cytotoxicity in a cell culture, comparing the following four adhesives: Xeno® V (XE), Excite® F DSC (EX), Adhese® OneF (AD) and Prime & Bond NT (PB). MATERIALS AND METHODS: The adhesives were prepared according to the manufacturer's instructions...
June 2017: Acta Stomatologica Croatica
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