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https://www.readbyqxmd.com/read/27922863/suppression-of-myocardial-18f-fdg-uptake-through-prolonged-high-fat-high-protein-and-very-low-carbohydrate-diet-before-fdg-pet-ct-for-evaluation-of-patients-with-suspected-cardiac-sarcoidosis
#1
Yang Lu, Christopher Grant, Karen Xie, Nadera J Sweiss
BACKGROUND: A major obstacle in using FDG-PET/CT to diagnose cardiac sarcoidosis (CS) is the unpredictable physiological myocardial FDG uptake. We hypothesized that a prolonged 72-hour pretest high-fat, high-protein, and very-low-carbohydrate (HFHPVLC) diet preparation could suppress physiologic myocardial uptake of FDG and thus help to identify active CS. METHODS: This retrospective study included 215 FDG-PET/CT tests from 207 patients with biopsy-proven sarcoidosis and clinical suspicion for CS between July 2014 and December 2015...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27920522/incorporation-of-heparin-binding-proteins-into-preformed-dextran-sulfate-chitosan-nanoparticles
#2
Paula Zaman, Julia Wang, Adam Blau, Weiping Wang, Tina Li, Daniel S Kohane, Joseph Loscalzo, Ying-Yi Zhang
Incorporation of proteins into dextran sulfate (DS)-chitosan (CS) nanoparticles (DSCS NPs) is commonly performed using entrapment procedures, in which protein molecules are mixed with DS and CS until particle formation occurs. As DS is an analog of heparin, the authors examined whether proteins could be directly incorporated into preformed DSCS NPs through a heparin binding domain-mediated interaction. The authors formulated negatively-charged DSCS NPs, and quantified the amount of charged DS in the outer shell of the particles...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27912076/activating-transcription-factor-3-is-essential-for-cigarette-smoke-induced-mucin-expression-via-interaction-with-activator-protein-1
#3
Yan-Ping Wu, Yin-Fang Wu, Chao Zhang, Hong-Bin Zhou, Chao Cao, Miao Li, Chen Zhu, Song-Min Ying, Zhi-Hua Chen, Hua-Hao Shen, Wen Li
Mucus hypersecretion is an important pathologic feature of chronic obstructive pulmonary disease. Activating transcription factor 3 (ATF3) is an adaptive-response gene that participates in various cellular processes. However, little is known about its role in cigarette smoke (CS)-induced mucus hyperproduction. This study aimed to investigate the role and molecular mechanisms of ATF3 in CS-induced Mucin 5AC (MUC5AC) expression. ATF3 was elevated in lung tissues of mice exposed to CS for 12 weeks. Treatment with CS extract significantly induced ATF3 expression and MUC5AC production in human bronchial epithelial cells, NCI-H292, and mouse tracheal epithelial cells...
November 29, 2016: American Journal of Pathology
https://www.readbyqxmd.com/read/27910792/optimization-of-liquid-fermentation-conditions-and-protein-nutrition-evaluation-of-mycelium-from-the-caterpillar-medicinal-mushroom-cordyceps-militaris-ascomycetes
#4
Jie Gang, Han Liu, Yanhong Liu
Cordyceps militaris is a well-known traditional Chinese medicinal mushroom. In this study, the mycelium of C. militaris was cultured using liquid fermentation technology and the culture medium components were optimized by the orthogonal test method. Our results showed that the optimal medium combination for the mycelium growth is 3% glucose, 3% peptone, 0.1% MgSO4, and 0.2% KH2PO4 The international general nutritional assessment method was applied to the overall evaluation of the protein nutrition value of submerged cultivated mycelium and fruit body of C...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27905575/protoporphyrin-ix-modified-chitosan-g-oligo-nipaam-polymeric-micelles-from-physical-stabilization-to-permeability-characterization-in-vitro
#5
Inbar Schlachet, Alejandro Sosnik
Two main hurdles persist towards the more extensive bench-to-bed side translation of non-parenteral polymeric micelles. The first pertains to their thermodynamically-driven disassembly under uncontrolled dilution conditions in the biological milieu and upon interaction with biomacromolecules (e.g., proteins). The second is related to the relatively poor understanding of the pathways by which polymeric micelles improve the bioavailability of the payload by mucosal routes (e.g., intestinal). In this work, a chitosan-g-oligo(N-isopropylacrylamide) (CS-g-oligo(NiPAAm)) copolymer was modified with non-cytotoxic amounts of protoporphyrin IX (PP), a planar molecule of amphiphilic character that undergoes self-aggregation in water by forming π-π stacked supramolecular structures, to induce micellization under disfavored conditions and to serve as a fluorescent tracer for the measurement of the micelle permeability across a model of the intestinal epithelium in vitro...
December 1, 2016: Biomaterials Science
https://www.readbyqxmd.com/read/27905110/distinct-molecular-landscapes-between-endometrioid-and-non-endometrioid-uterine-carcinomas
#6
Nathaniel L Jones, Joanne Xiu, Sudeshna Chatterjee-Paer, Alexandre Buckley de Meritens, William M Burke, Ana I Tergas, Jason D Wright, June Y Hou
Endometrial carcinoma (EC) is traditionally characterized as endometrioid and non-endometrioid based on histo-pathologic phenotypes. Molecular-based classifications have been proposed, but are not widely implemented. Herein we examine molecular profiles between EC histologic subtypes. 3133 ECs were submitted between March 2011 and July 2014: 1634 Type I and 1226 Type II. In situ hybridization and immunohistochemistry were used to assess copy number and protein expression of selected genes. Sequenced variants in 47 genes were analyzed using the Illumina TruSeq Amplicon Cancer Panel...
December 1, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27903806/oschx14-is-involved-in-the-k-homeostasis-in-rice-oryza-sativa-flowers
#7
Yi Chen, Jingkun Ma, Anthony J Miller, Bingbing Luo, Mei Wang, Zhen Zhu, Pieter B F Ouwerkerk
Previously we showed in the osjar1 mutants that the lodicule senescence which controls the closing of rice flowers was delayed. This resulted in florets staying open longer when compared with the wild type. The gene OsJAR1 is silenced in osjar1 mutants and is a key member of the jasmonic acid (JA) signaling pathway. We found that K concentrations in lodicules and flowers of osjar1-2 were significantly elevated compared with the wild type, indicating that K(+) homeostasis may play a role in regulating the closure of rice flowers...
July 2016: Plant & Cell Physiology
https://www.readbyqxmd.com/read/27899253/betulin-inhibited-cigarette-smoke-induced-copd-in-mice
#8
Ma Chunhua, Hongyan Long, Weina Zhu, Zheng Liu, Ruan Jie, Yajie Zhang, Yarui Wang
The purpose of the present study was to evaluate the protective effect of betulin (BE) on CS (cigarette smoke)-induced COPD in mice and explore its underlying mechanisms. 60 male ICR mice were randomly assigned to five groups: control group, model group, dexamethasone (2mg/kg) group, BE (20mg/kg) group and BE (40mg/kg) group. The COPD mice were induced by cigarette smoke exposure for 8 weeks. The result of H&E staining demonstrated that BE inhibited CS-induced pathological injury in lung tissue. Besides, BE could restore the activities of superoxide dismutase (SOD) in serum and in lung, catalase (CAT) in serum and reduce the content of malondialdehyde (MDA) in serum and in lung...
November 26, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27898998/nutritional-supplementation-for-hip-fracture-aftercare-in-older-people
#9
REVIEW
Alison Avenell, Toby O Smith, James P Curtain, Jenson Cs Mak, Phyo K Myint
BACKGROUND: Older people with hip fractures are often malnourished at the time of fracture, and subsequently have poor food intake. This is an update of a Cochrane review first published in 2000, and previously updated in 2010. OBJECTIVES: To review the effects (benefits and harms) of nutritional interventions in older people recovering from hip fracture. SEARCH METHODS: We searched the Cochrane Bone, Joint and Muscle Trauma Group Specialised Register, CENTRAL, MEDLINE, MEDLINE In-Process & Other Non-Indexed Citations, Embase, CAB Abstracts, CINAHL, trial registers and reference lists...
November 30, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27882763/effect-of-systemic-enzymotherapy-on%C3%A2-cesarean-section-scar-healing
#10
E Dosedla, A Grendelova, P Calda
OBJECTIVES: The aim of our study was to monitor changes in the healing of Caesarean section scars in patients using systemic enzymotherapy in comparison with patients not treated with systemic enzymotherapy (Wobenzym). METHODS: A prospective cohort study was conducted in 60 primiparous women delivered by CS. We compared the following outcomes: scar thickness after the Caesarean section, dehiscence risk coefficient (DRC), severity of the Caesarean section scar defect, uterine cavity dilation, post-operative pain, C-reactive protein level and febrility...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27874084/silymarin-attenuates-cigarette-smoke-extract-induced-inflammation-via-simultaneous-inhibition-of-autophagy-and-erk-p38-mapk-pathway-in-human-bronchial-epithelial-cells
#11
Diandian Li, Jun Hu, Tao Wang, Xue Zhang, Lian Liu, Hao Wang, Yanqiu Wu, Dan Xu, Fuqiang Wen
Cigarette smoke (CS) is a major risk of chronic obstructive pulmonary disease (COPD), contributing to airway inflammation. Our previous study revealed that silymarin had an anti-inflammatory effect in CS-exposed mice. In this study, we attempt to further elucidate the molecular mechanisms of silymarin in CS extract (CSE)-induced inflammation using human bronchial epithelial cells. Silymarin significantly suppressed autophagy activation and the activity of ERK/p38 mitogen-activated protein kinase (MAPK) pathway in Beas-2B cells...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27873218/characterization-of-glycan-structures-of-chondroitin-sulfate-glycopeptides-facilitated-by-sodium-ion-pairing-and-positive-mode-lc-ms-ms
#12
Jonas Nilsson, Fredrik Noborn, Alejandro Gomez Toledo, Waqas Nasir, Carina Sihlbom, Göran Larson
Purification and liquid chromatography-tandem mass spectrometry (LC-MS/MS) characterization of glycopeptides, originating from protease digests of glycoproteins, enables site-specific analysis of protein N- and O-glycosylations. We have described a protocol to enrich, hydrolyze by chondroitinase ABC, and characterize chondroitin sulfate-containing glycopeptides (CS-glycopeptides) using positive mode LC-MS/MS. The CS-glycopeptides, originating from the Bikunin proteoglycan of human urine samples, had ΔHexAGalNAcGlcAGalGalXyl-O-Ser hexasaccharide structure and were further substituted with 0-3 sulfate and 0-1 phosphate groups...
November 21, 2016: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/27872853/controlled-release-of-interleukin-1-receptor-antagonist-from-hyaluronic-acid-chitosan-microspheres-attenuates-interleukin-1%C3%AE-induced-inflammation-and-apoptosis-in-chondrocytes
#13
Bo Qiu, Ming Gong, Qi-Ting He, Pang-Hu Zhou
This paper investigates the protective effect of interleukin-1 receptor antagonist (IL-1Ra) released from hyaluronic acid chitosan (HA-CS) microspheres in a controlled manner on IL-1β-induced inflammation and apoptosis in chondrocytes. The IL-1Ra release kinetics was characterized by an initial burst release, which was reduced to a linear release over eight days. Chondrocytes were stimulated with 10 ng/ml IL-1β and subsequently incubated with HA-CS-IL-1Ra microspheres. The cell viability was decreased by IL-1β, which was attenuated by HA-CS-IL-1Ra microspheres as indicated by an MTT assay...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27866196/down-regulation-of-protein-kinase-c-%C3%AE%C2%B5-by-prolonged-incubation-with-pma-inhibits-the-proliferation-of-vascular-smooth-muscle-cells
#14
Huixuan Zhou, Yan Wang, Quanhong Zhou, Bin Wu, Aizhong Wang, Wei Jiang, Li Wang
BACKGROUND/AIMS: Phorbol myristate acetate (PMA) exerts a pleiotropic effect on the growth and differentiation of various cells. Protein kinase Cs (PKCs) plays a central role in mediating the effects of PMA on cells. The present study investigated whether the down-regulation of protein kinase C-ε (PKC-ε) is involved in the inhibition of vascular smooth muscle cell (VSMC) proliferation caused by prolonged PMA incubation. METHODS: Using cell counting, Cell Counting Kit-8 (CCK-8) and EdU incorporation assay on VSMCs, we evaluated the inhibitory effects of prolonged incubation of PMA, of lentiviruses carrying the short-hairpin RNAs (shRNA) of PKC-ε and of the PKC-ε inhibitor peptide on the proliferation and viability of cells...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27865981/srb1-as-a-new-redox-target-of-cigarette-smoke-in-human-sebocytes
#15
Ilaria Crivellari, Claudia Sticozzi, Giuseppe Belmonte, Ximena M Muresan, Franco Cervellati, Alessandra Pecorelli, Carlotta Cavicchio, Emanuela Maioli, Christos C Zouboulis, Mascia Benedusi, Carlo Cervellati, Giuseppe Valacchi
For its critical location, the skin represents the major interface between the body and the environment, therefore is one of the major biological barriers against the outdoor environmental stressors. Among the several oxidative environmental stressors, cigarette smoke (CS) has been associated with the development and worsening of many skin pathologies such as acne, dermatitis, delayed wound healing, aging and skin cancer. In our previous work we have demonstrated that CS is able to affect genes involved in skin cholesterol trafficking, among which SRB1, a receptor involved in the uptake of cholesterol from HDL, seems to be very susceptible to the oxidative stress induced by CS...
November 16, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27863083/promotion-of-neurological-recovery-in-rat-spinal-cord-injury-by-mesenchymal-stem-cells-loaded-on-nerve-guided-collagen-scaffold-through-increasing-alternatively-activated-macrophage-polarization
#16
Zhan Peng, Wei Gao, Bing Yue, Jie Jiang, Yong Gu, Jianwu Dai, Liang Chen, Qin Shi
Mesenchymal stem cells(MSCs)characterized by multi-differentiation potent and immunoregulatory have been used in the treatment of spinal cord injury (SCI), but the direct transplantation may limit its effectiveness due to quick diffusion. In addition, the role of macrophages in healing is being increasingly recognized because of the ability to polarize into pro- and anti-inflammatory phenotypes. In the present study, we developed the nerve-guide collagen scaffold (CS) and rat MSCs. After CS was confirmed to minimize MSCs distribution in vivo by the positron emission tomography (PET) imaging, the repair capacity of combined implantation of CS and MSCs and the effect on classically activated macrophage (M1)/alternatively activated macrophage (M2) polarization was assessed in a hemisected SCI rat model...
November 15, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27858577/long-term-endurance-training-increases-serum-cathepsin-s-and-decreases-il-6-and-hscrp-levels
#17
Michael Sponder, Ioana-Alexandra Campean, Michael Emich, Monika Fritzer-Szekeres, Brigitte Litschauer, Jutta Bergler-Klein, Senta Graf, Jeanette Strametz-Juranek
Cathepsin S (CS) was shown to play a key role in cancer progression, atherosclerosis, heart valve disease, insulin resistance and diabetes mellitus. The present prospective study aimed to investigate the influence of sports on CS, interleukin-6 (Il-6) and high-sensitivity C-reactive protein (hsCRP) levels. Ninety-eight of 109 participants completed the study. Ergometries were performed at baseline and after 8 months to evaluate/quantify the performance gain. Blood samples were taken at baseline and every 2 months...
November 18, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27856713/effect-of-increased-and-maintained-frequency-of-speed-endurance-training-on-performance-and-muscle-adaptations-in-runners
#18
Casper Skovgaard, Nicki Winfield Almquist, Jens Bangsbo
The aim of the study was, in runners accustomed to speed endurance training (SET), to examine the effect of increased and maintained frequency of SET on performance and muscular adaptations. After familiarization (FAM) to SET, eighteen male (n=14) and female (n=4) runners (VO2-max: 57.3±3.4 ml·min(-1); mean±SD) completed twenty sessions of maintained low-frequency (LF; every fourth day; n=7) or high-frequency (HF; every second day; n=11) SET (intervention period; INT). Before FAM as well as before and after INT, subjects completed a series of running tests and a biopsy from m...
November 17, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27855620/mrp1-dependent-collateral-sensitivity-of-multidrug-resistant-cancer-cells-identifying-selective-modulators-inducing-cellular-glutathione-depletion
#19
Doriane Lorendeau, Lauriane Dury, Rachad Nasr, Ahcène Boumendjel, Elisabetta Teodori, Michael Gütschow, Pierre Falson, Attilio Di Pietro, Hélène Baubichon-Cortay
Cancer cells are permanently being selected for survival and proliferation. During this process, tumor cells often co-opt basic physiological mechanisms to protect themselves from toxic chemotherapy. One of these mechanisms is the overexpression of ATP-binding cassette (ABC) drug efflux pumps leading to multidrug resistance (MDR) of cancer cells through an increase of drug efflux. In the past 20 years, many efforts were done to circumvent MDR through the inhibition of ABC transporters. A number of inhibitors of these transporters were found but are rarely specific or rationally developed...
November 18, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27846267/interaction-between-the-stress-phase-angle-spa-and-the-oscillatory-shear-index-osi-affects-endothelial-cell-gene-expression
#20
Ronny Amaya, Limary M Cancel, John M Tarbell
Hemodynamic forces play an important role in the non-uniform distribution of atherosclerotic lesions. Endothelial cells are exposed simultaneously to fluid wall shear stress (WSS) and solid circumferential stress (CS). Due to variations in impedance (global factors) and geometric complexities (local factors) in the arterial circulation a time lag arises between these two forces that can be characterized by the temporal phase angle between CS and WSS (stress phase angle-SPA). Asynchronous flows (SPA close to -180°) that are most prominent in coronary arteries have been associated with localization of atherosclerosis...
2016: PloS One
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