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https://www.readbyqxmd.com/read/28088386/trypsin-induces-biphasic-muscle-contraction-and-relaxation-via-transient-receptor-potential-vanilloid-1-and-neurokinin-receptors-1-2-in-porcine-esophageal-body
#1
Bai Xiaopeng, Yoshimasa Tanaka, Eikichi Ihara, Katsuya Hirano, Kayoko Nakano, Mayumi Hirano, Yoshinao Oda, Kazuhiko Nakamura
Duodenal reflux of fluids containing trypsin relates to refractory gastroesophageal reflux disease (GERD). Esophageal peristalsis and clearance are important factors in GERD pathogenesis. However, the function of trypsin in esophageal body contractility is not fully understood. In this study, effects of trypsin on circular smooth muscle (CSM) and longitudinal smooth muscle (LSM) of the porcine esophageal body were examined. Trypsin elicited a concentration dependent biphasic response, a major contraction and a subsequent relaxation only in CSM...
January 11, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28088106/uv-a-induced-delayed-development-in-the-larvae-of-coral-seriatopora-caliendrum
#2
Jie Zhou, Tung-Yung Fan, John Beardall, Kunshan Gao
Coral reefs are vulnerable to ultraviolet radiation (UVR, 280-400nm). Not only do the fluxes of UVR fluctuate daily, they are also increasing due to global ocean and atmospheric changes. The deleterious effects of UVR on scleractinian corals have been intensively studied, but much less is known about the response of corals in the early pre-settlement phase. In this study, we tested how UVR exposure affects survival and development of Seriatopora caliendrum larvae and examined the photophysiological changes induced in the symbiotic dinoflagellate Symbiodinium...
January 4, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28088041/the-role-of-the-ifg-and-psts-in-syntactic-prediction-evidence-from-a-parametric-study-of-hierarchical-structure-in-fmri
#3
William Matchin, Christopher Hammerly, Ellen Lau
Sentences encode hierarchical structural relations among words. Several neuroimaging experiments aiming to localize combinatory operations responsible for creating this structure during sentence comprehension have contrasted short, simple phrases and sentences to unstructured controls. Some of these experiments have revealed activation in the left inferior frontal gyrus (IFG) and posterior superior temporal sulcus (pSTS), associating these regions with basic syntactic combination. However, the wide variability of these effects across studies raises questions about this interpretation...
December 18, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28088038/evidence-of-functional-duplicity-of-nestin-expression-in-the-adult-mouse-midbrain
#4
Parisa Farzanehfar, Shi Sheng Lu, Anupa Dey, Dharshani Musiienko, Hamzah Baagil, Malcolm K Horne, Tim D Aumann
Whether or not neurogenesis occurs in the adult substantia nigra pars compacta (SNc) is an important question relevant for developing better treatments for the motor symptoms of Parkinson's disease (PD). Although controversial, it is generally believed that dividing cells here remain undifferentiated or differentiate into glia, not neurons. However, there is a suggestion that Nestin-expressing neural precursor cells (NPCs) in the adult SNc have a propensity to differentiate into neurons, which we sought to confirm in the present study...
January 5, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28087889/national-audit-of-the-quality-of-pain-relief-provided-in-emergency-departments-in-aotearoa-new-zealand-the-prized-1-study
#5
(no author information available yet)
OBJECTIVE: Pain is a common feature of ED presentations and the timely provision of adequate analgesia is important for patient care. However, there is currently no New Zealand data with respect to this indicator of care quality. The present study aimed to provide a baseline for the quality of care with respect to the provision of timely and adequate analgesia in New Zealand EDs. METHODS: The present study is a secondary analysis of data initially collected for the Shorter Stays in Emergency Department Study, using a retrospective chart review of 1685 randomly selected ED presentations (2006-2012) from 26 New Zealand public hospital EDs...
January 13, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/28087714/dlg5-connects-cell-polarity-and-hippo-signaling-protein-networks-by-linking-par-1-with-mst1-2
#6
Julian Kwan, Anna Sczaniecka, Emad Heidary Arash, Liem Nguyen, Chia-Chun Chen, Srdjana Ratkovic, Olga Klezovitch, Liliana Attisano, Helen McNeill, Andrew Emili, Valeri Vasioukhin
Disruption of apical-basal polarity is implicated in developmental disorders and cancer; however, the mechanisms connecting cell polarity proteins with intracellular signaling pathways are largely unknown. We determined previously that membrane-associated guanylate kinase (MAGUK) protein discs large homolog 5 (DLG5) functions in cell polarity and regulates cellular proliferation and differentiation via undefined mechanisms. We report here that DLG5 functions as an evolutionarily conserved scaffold and negative regulator of Hippo signaling, which controls organ size through the modulation of cell proliferation and differentiation...
December 15, 2016: Genes & Development
https://www.readbyqxmd.com/read/28087415/estimation-of-the-young-s-modulus-of-the-human-pars-tensa-using-in-situ-pressurization-and-inverse-finite-element-analysis
#7
S Alireza Rohani, Soroush Ghomashchi, Sumit K Agrawal, Hanif M Ladak
Finite-element models of the tympanic membrane are sensitive to the Young's modulus of the pars tensa. The aim of this work is to estimate the Young's modulus under a different experimental paradigm than currently used on the human tympanic membrane. These additional values could potentially be used by the auditory biomechanics community for building consensus. The Young's modulus of the human pars tensa was estimated through inverse finite-element modelling of an in-situ pressurization experiment. The experiments were performed on three specimens with a custom-built pressurization unit at a quasi-static pressure of 500 Pa...
January 10, 2017: Hearing Research
https://www.readbyqxmd.com/read/28086913/correction-of-irregular-and-induced-regular-corneal-astigmatism-with-toric-iol-after-posterior-segment-surgery-a-case-series
#8
Bence L Kolozsvári, Gergely Losonczy, Dorottya Pásztor, Mariann Fodor
BACKGROUND: Toric intraocular lens (IOL) implantation can be an effective method for correcting corneal astigmatism in patients with vitreoretinal diseases and cataract. Our purpose is to report the outcome of toric IOL implantation in two cases - a patient with scleral-buckle-induced regular corneal astigmatism and a patient with keratoconus following pars plana vitrectomy. As far as we are aware, there are no reported cases of toric IOL implantation in a vitrectomized eye with keratoconus nor of toric IOL implantation in patients with scleral-buckle-induced regular corneal astigmatism...
January 13, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28079978/targeting-coagulation-factor-receptors-protease-activated-receptors-in-idiopathic-pulmonary-fibrosis
#9
REVIEW
Cong Lin, Keren Borensztajn, C Arnold Spek
Idiopathic pulmonary fibrosis (IPF) is a lethal lung disease with a 5-year mortality rate above 50% and unknown etiology. Treatment options remain limited and, currently, only two drugs are available, nintedanib and pirfenidone. However, both of these antifibrotic agents only slow down the progression of the disease but do not remarkably prolong the survival of IPF patients. Hence, the discovery of new therapeutic targets for IPF is crucial. Studies exploring the mechanisms that are involved in IPF identified several possible targets for therapeutic interventions...
January 12, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28079656/endoscopic-cyclophotocoagulation-for-the-treatment-of-glaucoma-in-boston-keratoprosthesis-type-ii-patient
#10
Linda Yi-Chieh Poon, James Chodosh, Demetrios G Vavvas, Claes H Dohlman, Teresa C Chen
We describe the surgical technique of endoscopic cyclophotocoagulation in a Boston keratoprosthesis type II patient. This patient with ocular cicatricial pemphigoid had pars plana endoscopic cyclophotocoagula through wounds created in the eyelids.This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal...
January 10, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28076793/chloroquine-inducible-par-4-secretion-is-essential-for-tumor-cell-apoptosis-and-inhibition-of-metastasis
#11
Ravshan Burikhanov, Nikhil Hebbar, Sunil K Noothi, Nidhi Shukla, James Sledziona, Nathália Araujo, Meghana Kudrimoti, Qing Jun Wang, David S Watt, Danny R Welch, Jodi Maranchie, Akihiro Harada, Vivek M Rangnekar
The induction of tumor suppressor proteins capable of cancer cell apoptosis represents an attractive option for the re-purposing of existing drugs. We report that the anti-malarial drug, chloroquine (CQ), is a robust inducer of Par-4 secretion from normal cells in mice and cancer patients in a clinical trial. CQ-inducible Par-4 secretion triggers paracrine apoptosis of cancer cells and also inhibits metastatic tumor growth. CQ induces Par-4 secretion via the classical secretory pathway that requires the activation of p53...
January 10, 2017: Cell Reports
https://www.readbyqxmd.com/read/28076371/meta-analysis-of-the-long-term-success-rate-of-different-interventions-in-benign-biliary-strictures
#12
Orsolya Huszár, Bálint Kokas, Péter Mátrai, Péter Hegyi, Erika Pétervári, Áron Vincze, Gabriella Pár, Patrícia Sarlós, Judit Bajor, József Czimmer, Dóra Mosztbacher, Katalin Márta, Csaba Zsiborás, Péter Varjú, Ákos Szücs
BACKGROUND: Benign biliary stricture is a rare condition and the majority of the cases are caused by operative trauma or chronic inflammation based on various etiology. Although the initial results of endoscopic, percutaneous and surgical treatment are impressive, no comparison about long term stricture resolution is available. AIMS: The goal of this study was to compare the long term disease free survival in benign biliary strictures with various etiology after surgery, percutaneous transhepatic-and endoscopic treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28073539/physical-processes-leading-to-the-development-of-an-anomalously-large-cochlodinium-polykrikoides-bloom-in-the-east-sea-japan-sea
#13
Dae-Won Kim, Young-Heon Jo, Jong-Kuk Choi, Jang-Geun Choi, Hongsheng Bi
An anomalously large Harmful Algal Bloom (HAB) was observed in the southwest coast of the East/Japan Sea (hereafter the East Sea) during the summer of 2013. During this time period, the presence of Cochlodinium polykrikoides (C. polykrikoides) was detected by the Geostationary Ocean Color Imager (GOCI) and validated by in-situ observations. GOCI observations have been available since 2011, thus allowingto examine various stages of the physical condition of the developing C. polykrikoides bloom, thereby other multi-satellite and buoy measurements obtained between 2011 and 2013...
May 2016: Harmful Algae
https://www.readbyqxmd.com/read/28070700/clouds-homogenize-shoot-temperatures-transpiration-and-photosynthesis-within-crowns-of-abies-fraseri-pursh-poiret
#14
J Melissa Hernandez-Moreno, Nicole M Bayeur, Harold D Coley, Nicole M Hughes
Multiple studies have examined the effects of clouds on shoot and canopy-level microclimate and physiological processes; none have yet done so on the scale of individual plant crowns. We compared incident photosynthetically active radiation (PAR), leaf temperatures, chlorophyll fluorescence, and photosynthetic gas exchange of shoots in three different spatial locations of Abies fraseri crowns on sunny (clear to partly cloudy) versus overcast days. The field site was a Fraser fir farm (1038 m elevation) in the Appalachian mountains, USA...
January 10, 2017: Oecologia
https://www.readbyqxmd.com/read/28070577/sulfur-dioxide-prodrugs-triggered-release-of-so2via-a-click-reaction
#15
Wenyi Wang, Xingyue Ji, Zhenming Du, Binghe Wang
Sulfur dioxide (SO2) is being recognized as a possible endogenous gasotransmitter with importance on par with that of NO, CO, and H2S. Herein we describe a series of SO2 prodrugs that are activated for SO2 release via a bioorthogonal click reaction. The release rate can be tuned by adjusting the substituents on the prodrug.
January 10, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28070546/data-of-protein-rna-binding-sites
#16
Wook Lee, Byungkyu Park, Daesik Choi, Kyungsook Han
Despite the increasing number of protein-RNA complexes in structure databases, few data resources have been made available which can be readily used in developing or testing a method for predicting either protein-binding sites in RNA sequences or RNA-binding sites in protein sequences. The problem of predicting protein-binding sites in RNA has received much less attention than the problem of predicting RNA-binding sites in protein. The data presented in this paper are related to the article entitled "PRIdictor: Protein-RNA Interaction predictor" (Tuvshinjargal et al...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/28069869/determination-of-%C3%A2-9-tetrahydrocannabinol-thc-11-hydroxy-thc-11-nor-9-carboxy-thc-and-cannabidiol-in-human-plasma-using-gas-chromatography-tandem-mass-spectrometry
#17
David M Andrenyak, David E Moody, Matthew H Slawson, Daniel S O'Leary, Margaret Haney
Two marijuana compounds of particular medical interest are delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). A gas chromatography-tandem mass spectrometry (GC-MS-MS) method was developed to test for CBD, THC, hydroxy-THC (OH-THC) and carboxy-THC (COOH-THC) in human plasma. Calibrators (THC and OH-THC, 0.1 to 100; CBD, 0.25 to 100; COOH-THC, 0.5-500 ng/mL) and controls (0.3, 5 and 80 ng/mL, except COOH-THC at 1.5, 25 and 400 ng/mL) were prepared in blank matrix. Deuterated (d3) internal standards were added to 1-mL samples...
January 8, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28068457/cellular-gabaergic-neuroactive-steroid-3%C3%AE-5%C3%AE-3-hydroxy-pregnan-20-one-3%C3%AE-5%C3%AE-thp-immunostaining-levels-are-increased-in-the-ventral-tegmental-area-of-human-alcohol-use-disorder-patients-a-postmortem-study
#18
Ahmet Sait Hasirci, Antoniette M Maldonado-Devincci, Matthew C Beattie, Todd K O'Buckley, A Leslie Morrow
BACKGROUND: The GABAergic neuroactive steroid (3α,5α)-3-hydroxy-pregnan-20-one (3α,5α-THP; allopregnanolone) enhances GABAergic activity and produces subjective effects similar to ethanol (EtOH). The effect of chronic alcohol exposure on 3α,5α-THP concentrations has been studied in mouse, rat, and monkey limbic brain areas. Chronic EtOH exposure produced divergent brain region and cell-specific changes in 3α,5α-THP concentrations in animal studies. However, 3α,5α-THP levels in similar human brain regions have never been examined in individuals diagnosed with alcohol use disorder (AUD)...
January 9, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28067725/surgical-outcomes-and-complications-of-rhegmatogenous-retinal-detachment-in-eyes-with-chorioretinal-coloboma-the-results-of-the-kkesh-international-collaborative-retina-study-group
#19
Marwan A Abouammoh, Sulaiman M Alsulaiman, Vishali S Gupta, Afnan Younis, Jay Chhablani, Abdullah Hussein, Antonio M Casella, Alay S Banker, J Fernando Arevalo
PURPOSE: To study the outcomes of management of rhegmatogenous retinal detachment in eyes with chorioretinal colobomas. METHODS: A retrospective review of 119 patients (119 eyes) with chorioretinal colobomas who underwent surgical repair for rhegmatogenous retinal detachment was performed. Data were collected on the site of the retinal break, type of surgery, anatomical success, and complications. RESULTS: The most common location of the primary retinal break was the intercalary membrane in 58...
January 6, 2017: Retina
https://www.readbyqxmd.com/read/28067723/inverted-internal-limiting-membrane-flap-technique-versus-complete-internal-limiting-membrane-removal-in-myopic-macular-hole-surgery-a-comparative-study
#20
Maurizio Mete, Alessandro Alfano, Massimo Guerriero, Guido Prigione, Mauro Sartore, Antonio Polito, Grazia Pertile
PURPOSE: To compare the results of vitrectomy with complete internal limiting membrane (ILM) removal and inverted ILM flap in the treatment of myopic macular hole (MMH). METHODS: Seventy eyes of 68 patients with MMH undergone pars-plana vitrectomy (PPV) with either complete ILM removal (n = 36, Group 1) or inverted ILM flap technique (n = 34, Group 2) were included in the study. Outcomes measured were the rate of MMH closure assessed by optical coherence tomography (OCT) and visual acuity (BCVA) at six months...
January 6, 2017: Retina
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