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https://www.readbyqxmd.com/read/28735523/histochemistry-and-immunolocalisation-of-glucokinin-in-antidiabetic-plants-used-in-traditional-mexican-medicine
#1
Guillermo Laguna-Hernández, Carlos A Rio-Zamorano, Itzel G Meneses-Ochoa, Alicia E Brechú-Franco
Mexico is a megadiverse country that has 3,600 to 4,000 species of medicinal plants, of which approximately 800 are used to treat conditions related to diabetes mellitus (DM). DM is a chronic degenerative disease of energy metabolism that exists as two types: type 1 (DM1) and type 2 (DM2). DM is considered a public health problem that affects 7% of the Mexican population older than 20 years. DM is clinically controlled with hypoglycaemic drugs, alpha-glucosidase inhibitors, insulin secretion stimulants or the direct application of insulin...
June 21, 2017: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28735450/prescription-drug-price-paradox-cost-analysis-of-canadian-online-pharmacies-versus-us-medicare-beneficiaries-for-the-top-100-drugs
#2
Sean Hyungwoo Kim, Young Joo Ryu, Na-Eun Cho, Andy Eunwoo Kim, Jongwha Chang
BACKGROUND AND OBJECTIVES: Despite the introduction of Medicare Part D (MPD) and 2012 Affordable Care Act (ACA), patients have a cost burden due to increases in drug prices. To overcome cost barriers, some patients purchase their medications from Canadian online pharmacies as Canadian prescription drug prices are believed to be lower than US prescription drug prices. The objective of this study was to determine which top 100 Medicare drugs can be imported to the USA legally, and to determine which type of prescription drug would be more beneficial to be purchased from Canadian online pharmacies...
July 22, 2017: Clinical Drug Investigation
https://www.readbyqxmd.com/read/28735423/the-anticoagulant-effect-of-heparin-during-radiofrequency-ablation-rfa-in-patients-taking-apixaban-or-rivaroxaban
#3
L C Brendel, F Dobler, G Hessling, J Michel, S L Braun, A L Steinsiek, P Groha, R Eckl, I Deisenhofer, A Hyseni, M Roest, I Ott, B Steppich
PURPOSE: Measuring the anticoagulant effect of heparin during radiofrequency ablation (RFA) in patients taking apixaban and rivaroxaban is challenging, since the activated coagulation time (ACT) does not seem to reflect the true anticoagulant activity of these drugs. We therefore evaluated coagulation properties of apixaban and rivaroxaban during RFA by different coagulation assays to better monitor periprocedural hemostasis. METHODS: The study included 90 patients (61 ± 12 years) with atrial fibrillation who underwent RFA procedures...
July 22, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28735418/gap-junction-communication-between-chromaffin-cells-the-hidden-face-of-adrenal-stimulus-secretion-coupling
#4
REVIEW
Nathalie C Guérineau
From birth to death, catecholamine secretion undergoes continuous adjustments, allowing the organism to adapt to homeostasis changes. To cope with these stressful conditions, the neuroendocrine cells of the adrenal medulla play an immediate and crucial role. Chromaffin cell-driven catecholamine release is chiefly controlled by a neurogenic command that arises from the sympathetic nervous system, which releases acetylcholine at the splanchnic nerve terminal-chromaffin cell synapses. In addition to receiving several synaptic inputs individually, chromaffin cells are coupled by gap junctions...
July 22, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28735402/determination-of-total-sulfur-sulfate-sulfite-thiosulfate-and-sulfolipids-in-plants
#5
Assylay Kurmanbayeva, Galina Brychkova, Aizat Bekturova, Inna Khozin, Dominic Standing, Dmitry Yarmolinsky, Moshe Sagi
In response to oxidative stress the biosynthesis of the ROS scavenger, glutathione is induced. This requires the induction of the sulfate reduction pathway for an adequate supply of cysteine, the precursor for glutathione. Cysteine also acts as the sulfur donor for the sulfuration of the molybdenum cofactor, crucial for the last step of ABA biosynthesis. Sulfate and sulfite are, respectively, the precursor and intermediate for cysteine biosynthesis and there is evidence for stress-induced sulfate uptake and further downstream, enhanced sulfite generation by 5'-phosphosulfate (APS) reductase (APR, EC 1...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28735300/caveolin-1-expression-as-a-prognostic-marker-in-triple-negative-breast-cancers-of-asian-women
#6
Joe Yeong, Aye Aye Thike, Murasaki Ikeda, Jeffrey Chun Tatt Lim, Bernett Lee, Seigo Nakamura, Jabed Iqbal, Puay Hoon Tan
BACKGROUND: Triple-negative breast cancers (TNBCs) are defined by their lack of oestrogen receptor, progesterone receptor and epidermal growth factor receptor 2. Although heterogeneous, the majority are aggressive and treatment options are limited. Caveolin acts as tumour suppressor or promoter depending on the cancer type. AIM: In this study, we aimed to determine if the expression levels of the candidate biomarker caveolin-1 on stromal or tumour cells were associated with clinicopathological parameters and disease outcomes in TNBCs from an ethnically diverse cohort of Asian women...
July 22, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28735297/regulating-the-advertising-of-genetic-tests-in-europe-a-balancing-act
#7
REVIEW
Louiza Kalokairinou, Pascal Borry, Heidi Carmen Howard
Direct-to-consumer (DTC) genetic tests (GT) have provoked criticism over their potential adverse impact on public health. The European Parliament called for a ban on DTC advertising of GT during the debate for the adoption of a European Regulation on in vitro diagnostic medical devices. This proposal, however, was not ultimately retained in the final text. Instead, the regulation includes an article prohibiting misleading claims for this kind of advertising. These two different approaches raise questions about the optimal degree of regulation...
July 22, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28735193/fabrication-of-in2s3-zn2geo4-composite-photocatalyst-for-degradation-of-acetaminophen-under-visible-light
#8
Tao Yan, Tingting Wu, Yaru Zhang, Meng Sun, Xiaodong Wang, Qin Wei, Bin Du
A novel indium trisulfide/zinc germinate (In2S3/Zn2GeO4) composite was developed via a co-precipitation hydrothermal method. The as-prepared composite was characterized in detail by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and UV-vis diffuse reflectance spectroscopy (DRS). Zn2GeO4 nanorods work as the main photocatalyst while In2S3 nanoparticles deposited on them acts as the photosensitizer. The resulting In2S3/Zn2GeO4 heterogeneous photocatalyst not only has enhanced visible light absorption, but also improved photo-generated charge transfer efficiency with remarkably high efficiency in decomposing acetaminophen (APAP)...
June 23, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28735089/biodeterioration-of-marble-in-an-underwater-environment
#9
Beatriz Cámara, Mónica Álvarez de Buergo, Manuel Bethencourt, Tomás Fernández-Montblanc, Mauro F La Russa, Michela Ricca, Rafael Fort
This study examines the deterioration of geomaterials used throughout history that today may be found lying on the ocean floor. Submerged archaeological sites including cargoes from shipwrecks or ancient city ruins have been a topic of interest from a perspective of in situ musealization, as a way of making underwater cultural heritage accessible to the public. In an experimental study conducted at an underwater archaeological site in the Bay of Cádiz (SW Spain), we subjected two types of marble (Carrara and Macael) to three conditions to which submerged archaeological objects are often exposed: full exposure to the water column, natural processes of burial and unearthing, or permanent burial...
July 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28735086/a-series-of-population-models-for-hyphantria-cunea-with-delay-and-seasonality
#10
Haixia Lu, Haitao Song, Huaiping Zhu
In this paper, we establish and study a basic stage-structured model for the population of Hyphantria cunea, a delay differentialequation model and a model incorporating the resource and seasonality. By introducing the population reproduction number R0, we show that R0 acts as a threshold parameter for the existence and stability of equilibria. The trivial equilibria of the above models are all globally asymptotically stable when R0<1; the basic model and the delay-differential model have a unique positive equilibrium respectively, and they are both locally asymptotically stable when R0>1; the model with periodic season is uniformly persistent and admits a positive periodic solution if R0>1...
July 19, 2017: Mathematical Biosciences
https://www.readbyqxmd.com/read/28735082/aeromonas-caviae-alters-the-cytosolic-and-mitochondrial-creatine-kinase-activities-in-experimentally-infected-silver-catfish-impairment-on-renal-bioenergetics
#11
Matheus D Baldissera, Carine F Souza, Guerino B Júnior, Camila Marina Verdi, Karen L S Moreira, Maria Izabel U M da Rocha, Marcelo L da Veiga, Roberto C V Santos, Bruno S Vizzotto, Bernardo Baldisserotto
Cytosolic and mitochondrial creatine kinases (CK), through the creatine kinase-phosphocreatine (CK/PCr) system, provide a temporal and spatial energy buffer to maintain cellular energy homeostasis. However, the effects of bacterial infections on the kidney remain poorly understood and are limited only to histopathological analyses. Thus, the aim of this study was to investigate the involvement of cytosolic and mitochondrial CK activities in renal energetic homeostasis in silver catfish experimentally infected with Aeromonas caviae...
July 19, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28734996/the-design-of-novel-visible-light-driven-ag-cdo-as-smart-nanocomposite-for-photodegradation-of-different-dye-contaminants
#12
K Saravanakumar, V Muthuraj, M Jeyaraj
In this paper, we report a novel visible light driven Ag/CdO photocatalyst, fabricated for the first time via one pot hydrothermal method and further applied for the photodegradation of two important exemplar water contaminants, Malachite green and Acid Orange 7. The microstructure, composition and optical properties of Ag/CdO nanocomposites were thoroughly investigated by various techniques. Scanning electron microscopy clearly shows that Ag NPs were strongly embedded between the CdO nanoparticles. Among the series of synthesized Ag/CdO nanocomposites, (5%) Ag/CdO nanocomposite possesses enhanced photocatalytic activity...
July 17, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28734982/isolation-and-characterization-of-renin-like-aspartic-proteases-from-echis-ocellatus-venom
#13
M C Wilkinson, D J H Nightingale, R A Harrison, S C Wagstaff
Three aspartic proteases (SVAPs) have been isolated from venom of the saw-scaled viper, Echis ocellatus. In confirmation of prior transcriptomic predictions, all three forms match to sequences of either of the two SVAP transcripts (EOC00051 and EOC00123), have a molecular weight of 42 kDa and possess a single N-glycan. The SVAPs act in a renin-like manner, specifically cleaving human and porcine angiotensinogen into angiotensin-1 and possess no general protease activity. Their activity is completely inhibited by the aspartyl protease inhibitor Pepstatin A...
July 19, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28734966/development-of-new-ganglioside-probes-and-unraveling-of-raft-domain-structure-by-single-molecule-imaging
#14
REVIEW
Kenichi G N Suzuki, Hiromune Ando, Naoko Komura, Takahiro Fujiwara, Makoto Kiso, Akihiro Kusumi
Gangliosides are involved in a variety of biological roles and are a component of lipid rafts found in cell plasma membranes (PMs). Gangliosides are especially abundant in neuronal PMs and are essential to their physiological functions. However, the dynamic behaviors of gangliosides have not been investigated in living cells due to a lack of fluorescent probes that behave like their parental molecules. We have recently developed, using an entirely chemical method, four new ganglioside probes (GM1, GM2, GM3, and GD1b) that act similarly to their parental molecules in terms of raft partitioning and binding affinity...
July 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28734907/predicting-relapse-in-schizophrenia-is-bdnf-a-plausible-biological-marker
#15
Anilkumar Pillai, Nina R Schooler, Diya Peter, Stephen W Looney, Donald C Goff, Alexander Kopelowicz, John Lauriello, Theo Manschreck, Alan Mendelowitz, Del D Miller, Joanne B Severe, Daniel R Wilson, Donna Ames, Juan Bustillo, John M Kane, Peter F Buckley
Understanding the biological processes that underlie why patients relapse is an issue of fundamental importance to the detection and prevention of relapse in schizophrenia. Brain Derived Neurotrophic Factor (BDNF), a facilitator of brain plasticity, is reduced in patients with schizophrenia. In the present study, we examined whether decreases in plasma BDNF levels could be used as a biological predictor of relapse in schizophrenia. A total of 221 patients were prospectively evaluated for relapse over 30months in the Preventing Relapse in Schizophrenia: Oral Antipsychotics Compared to Injectables: eValuating Efficacy (PROACTIVE) study...
July 19, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28734882/opioid-prescribing-among-cancer-and-non-cancer-patients-time-trend-analysis-in-the-elderly-using-administrative-data
#16
Lisa Barbera, Rinku Sutradhar, Anna Chu, Hsien Seow, Doris Howell, Craig C Earle, Mary Ann O'Brien, Deb Dudgeon, Clare Atzema, Amna Husain, Ying Liu, Carlo DeAngelis
BACKGROUND: In 2007, Cancer Care Ontario introduced a provincial symptom screening program, which included pain, for cancer patients. Over this same time, opioid prescribing has been increasingly scrutinized among non-cancer patients. The study purpose was to see if opioid prescribing changed among older adults after 2007 in the context of changing opioid regulations, and whether effects were different among patients with a cancer history. METHODS: Ontario residents aged ≥65 were identified from 2004 to 2013...
July 19, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28734867/p-q-type-voltage-gated-calcium-channels-mediate-the-ethanol-and-crf-sensitivity-of-central-amygdala-gabaergic-synapses
#17
F P Varodayan, M L Logrip, M Roberto
The central amygdala (CeA) GABAergic system is hypothesized to drive the development of alcohol dependence, due to its pivotal roles in the reinforcing actions of alcohol and the expression of negative emotion, anxiety and stress. Recent work has also identified an important role for the CeA corticotropin-releasing factor (CRF) system in the interaction between anxiety/stress and alcohol dependence. We have previously shown that acute alcohol and CRF each increase action potential-independent GABA release in the CeA via their actions at presynaptic CRF type 1 receptors (CRF1s); however, the shared mechanism employed by these two compounds requires further investigation...
July 19, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28734795/monoclonal-antibodies-in-multiple-myeloma-a-new-wave-of-the-future
#18
REVIEW
Daniel W Sherbenou, Tomer M Mark, Peter Forsberg
In 2015, 2 monoclonal antibodies were approved for the treatment of relapsed or refractory multiple myeloma (RRMM), elotuzumab and daratumumab. Elotuzumab is a monoclonal IgG-κ antibody directed against SLAMF7 (signaling lymphocytic activation molecule F7), a cell surface receptor involved in natural killer cell activation. Daratumumab is a monoclonal IgG-κ antibody that binds to CD38, a transmembrane protein found on the surface of myeloma cells and responsible for cellular adhesion and ectoenzymatic activity...
June 27, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28734734/nuclear-pore-complexes-a-scaffold-regulating-developmental-transcription
#19
Atsushi Satomura, Jason H Brickner
Nuclear pore complexes (NPCs) have a conserved, but poorly understood, role in transcriptional regulation. Recently, in Developmental Cell, Raices et al. argued that tissue-specific nuclear pore proteins (Nups) act as scaffolds that recruit the transcription factor Mef2C to the NPC, promoting transcription of NPC-associated genes during muscle development.
July 19, 2017: Trends in Cell Biology
https://www.readbyqxmd.com/read/28734728/a-new-ppar%C3%AE-dna-origami-biochromatography-and-offline-high-performance-liquid-chromatography-mass-spectrometry-method-for-screening-ppar%C3%AE-receptor-antagonists-from-ginsenosides
#20
Jie Zhou, Chong Sun, Lingchang Meng, Weiran Ye, Pei Luo, Fang Sun, Shanshan Chen, Xia Xu
To rapidly identify novel PPARγ ligands, a robust binding assay amenable to high-efficiency screening toward PPARγ would be desirable. In this study, a new PPARγ assembled on DNA origami (PPARγ/DNA origami) biochromatography drug screening model was constructed and evaluated. The method was used to screen active ingredients acted on PPARγ from the total ginsenosides. The total ginsenosides were handled on this biochromatography column by HPLC. The collected retention fraction from the biochromatography column was analyzed by HPLC and HPLC/MS...
July 19, 2017: Archives of Biochemistry and Biophysics
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