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https://www.readbyqxmd.com/read/28098946/negative-association-between-mr-spectroscopic-glutamate-markers-and-gray-matter-volume-after-alcohol-withdrawal-in-the-hippocampus-a-translational-study-in-humans-and-rats
#1
Ulrich Frischknecht, Derik Hermann, Nuran Tunc-Skarka, Guo-Ying Wang, Markus Sack, Julia van Eijk, Traute Demirakca, Claudia Falfan-Melgoza, Bertram Krumm, Sandra Dieter, Rainer Spanagel, Falk Kiefer, Karl F Mann, Wolfgang H Sommer, Gabriele Ende, Wolfgang Weber-Fahr
BACKGROUND: Both chronic alcohol consumption and alcohol withdrawal lead to neural tissue damage which partly recovers during abstinence. This study investigated withdrawal-associated changes in glutamatergic compounds, markers of neuronal integrity, and gray matter volumes during acute alcohol withdrawal in the hippocampus, a key region in development and maintenance of alcohol dependence in humans and rats. METHODS: Alcohol-dependent patients (N = 39) underwent magnetic resonance imaging (MRI) and MR spectroscopy (MRS) measurements within 24 hours after the last drink and after 2 weeks of abstinence...
January 18, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28098875/exposure-to-tnf%C3%A2-%C3%AE-combined-with-tgf%C3%A2-%C3%AE-induces-carcinogenesis-in-vitro-via-nf-%C3%AE%C2%BAb-twist-axis
#2
Weilei Dong, Shuwen Sun, Xiaocheng Cao, Yinghong Cui, A Chen, Xiang Li, Jiansong Zhang, Jianguo Cao, Yifeng Wang
Persistent human papilloma virus (HPV) infection induces chronic inflammation resulting in human cervical cancer. However, the mechanisms underlying carcinogenesis via chronic inflammation remain largely unclear. We investigated the role of pro-inflammatory factors in epithelial-mesenchymal transition (EMT) and cancer stem cell-like (CSCL) characteristics of HeLa cells exposed to TNF‑α with or without TGF‑β. We then determined the role of NF-κB/Twist signal axis in the pathogenesis of cervical cancer...
January 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28098783/the-influence-of-the-toxin-antitoxin-mazef-on-growth-and-survival-of-listeria-monocytogenes-under-stress
#3
Thomas D Curtis, Ippei Takeuchi, Lone Gram, Gitte M Knudsen
A major factor in the resilience of Listeria monocytogenes is the alternative sigma factor B (σ(B)). Type II Toxin/Antitoxin (TA) systems are also known to have a role in the bacterial stress response upon activation via the ClpP or Lon proteases. Directly upstream of the σ(B) operon in L. monocytogenes is the TA system mazEF, which can cleave mRNA at UACMU sites. In this study, we showed that the mazEF TA locus does not affect the level of persister formation during treatment with antibiotics in lethal doses, but exerts different effects according to the sub-inhibitory stress added...
January 13, 2017: Toxins
https://www.readbyqxmd.com/read/28098769/sensory-acceptability-of-infant-cereals-with-whole-grain-in-infants-and-young-children
#4
Juan Francisco Haro-Vicente, Maria Jose Bernal-Cava, Amparo Lopez-Fernandez, Gaspar Ros-Berruezo, Stefan Bodenstab, Luis Manuel Sanchez-Siles
In many countries, infant cereals are one of the first foods introduced during the complementary feeding stage. These cereals are usually made with refined cereal flours, even though several health benefits have been linked to the intake of whole grain cereals. Prior evidence suggests that food preferences are developed at early stages of life, and may persist in later childhood and adulthood. Our aim was to test whether an infant cereal with 30% of whole grain was similarly accepted both by parents and infants in comparison to a similar cereal made from refined flour...
January 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28098736/foveal-exudate-and-choroidal-neovascularization-in-atypical-cases-of-multiple-evanescent-white-dot-syndrome
#5
Kevin C Chen, Marcela Marsiglia, Rosa Dolz-Marco, Sarwar Zahid, Sarah Mrejen, Jose S Pulido, Salomon Y Cohen, Benjamin Freilich, Lawrence A Yannuzzi, K Bailey Freund
PURPOSE: To describe atypical cases of multiple evanescent white dot syndrome (MEWDS) associated with foveal exudation, increased choroidal thickness, and secondary Type 2 (subretinal) neovascularization. METHODS: Four cases of atypical MEWDS were studied at a retina referral center. Patients underwent evaluation with multimodal retinal imaging, including fluorescein angiography, indocyanine green angiography, spectral-domain and enhanced depth imaging optical coherence tomography (OCT)...
January 16, 2017: Retina
https://www.readbyqxmd.com/read/28098729/vitrectomy-for-persistent-macular-holes-following-ocriplasmin-injection-a-comparative-multicenter-study
#6
Ricarda G Schumann, Armin Wolf, Hans Hoerauf, Albrecht Lommatzsch, Mathias Maier, Joachim Wachtlin, Michael J Koss, Thomas Kreutzer, Thomas Bertelmann, Sara Kazerounian, Stefan Mennel, Siegfried G Priglinger
PURPOSE: To determine functional and anatomical outcomes of pars plana vitrectomy for persistent full-thickness macular hole (MH) after intravitreal injection of ocriplasmin. METHODS: This is a multicenter retrospective interventional study of 37 eyes of 37 patients who underwent pars plana vitrectomy with internal limiting membrane peeling for persistent MH after ocriplasmin treatment between December 2013 and December 2015 and comparison with 35 eyes of 35 patients who were offered ocriplasmin injection but underwent pars plana vitrectomy alone without pharmacologic vitreolysis before surgery...
January 16, 2017: Retina
https://www.readbyqxmd.com/read/28098727/persistent-overproduction-of-intraocular-vascular-endothelial-growth-factor-as-a-cause-of-late-vitreous-hemorrhage-after-vitrectomy-for-proliferative-diabetic-retinopathy
#7
Yoshihiro Wakabayashi, Yoshihiko Usui, Kinya Tsubota, Shunichiro Ueda, Kazuhiko Umazume, Daisuke Muramatsu, Hiroshi Goto
PURPOSE: The purpose of this study was to investigate whether vitreous levels of vascular endothelial growth factor (VEGF) predict late vitreous hemorrhage (VH) after vitrectomy for proliferative diabetic retinopathy, and how VEGF level changes in patients with postoperative late VH. METHODS: Eighty-five eyes of 68 patients with proliferative diabetic retinopathy who underwent vitrectomy were analyzed retrospectively. Vitreous samples were collected from eyes undergoing primary vitrectomy and from eyes with late VH undergoing second vitrectomy...
January 16, 2017: Retina
https://www.readbyqxmd.com/read/28098718/double-exposure-to-adverse-psychosocial-work-factors-and-high-family-responsibilities-as-related-to-ambulatory-blood-pressure-at-work-a-5-year-prospective-study-in-women-with-white-collar-jobs
#8
Mahée Gilbert-Ouimet, Chantal Brisson, Alain Milot, Michel Vézina
OBJECTIVE: Accumulating evidence shows that psychosocial work factors of the demand-control and effort-reward imbalance models may contribute to increase blood pressure (BP). Women are more likely to be exposed to these psychosocial factors than men. Moreover, women spend twice as much time per week performing family responsibilities than men. This study aims to evaluate the longitudinal association of the double exposure to psychosocial work factors and high family responsibilities in women with BP over a 5-year follow-up...
January 17, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28098629/right-dose-right-now-customized-drug-dosing-in-the-critically-ill
#9
Jason A Roberts, Anand Kumar, Jeffrey Lipman
Drugs are key weapons that clinicians have to battle against the profound pathologies encountered in critically ill patients. Antibiotics in particular are commonly used and can improve patient outcomes dramatically. Despite this, there are strong opportunities for further reducing the persisting poor outcomes for infected critically ill patients. However, taking these next steps for improving patient care requires a new approach to antibiotic therapy. Giving the right dose is highly likely to increase the probability of clinical cure from infection and suppress the emergence of resistant pathogens...
February 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28098546/reoccurrence-of-avian-influenza-a-h5n2-virus-clade-2-3-4-4-in-wild-birds-alaska-usa-2016
#10
Dong-Hun Lee, Mia K Torchetti, Mary Lea Killian, Thomas J DeLiberto, David E Swayne
We report reoccurrence of highly pathogenic avian influenza A(H5N2) virus clade 2.3.4.4 in a wild mallard in Alaska, USA, in August 2016. Identification of this virus in a migratory species confirms low-frequency persistence in North America and the potential for re-dissemination of the virus during the 2016 fall migration.
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28098537/persistent-infections-with-diverse-co-circulating-astroviruses-in-pediatric-oncology-patients-memphis-tennessee-usa
#11
Valerie Cortez, Pamela Freiden, Zhengming Gu, Elisabeth Adderson, Randall Hayden, Stacey Schultz-Cherry
Human astroviruses are a major cause of pediatric gastroenteritis, especially in immunocompromised children. We conducted a retrospective study to demonstrate that diverse astrovirus genotypes can co-circulate in pediatric oncology patients. A subset of cases is associated with long-term virus shedding (range 17-183 days).
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28098428/the-self-sufficient-p450-rhf-expressed-in-a-whole-cell-system-selectively-catalyses-the-5-hydroxylation-of-diclofenac
#12
Jan M Klenk, Bernd A Nebel, Joanne L Porter, Justyna K Kulig, Shaneela A Hussain, Sven M Richter, Michele Tavanti, Nicholas J Turner, Martin A Hayes, Bernhard Hauer, Sabine L Flitsch
P450 monooxygenases are able to catalyse the highly regio- and stereoselective oxidations of many organic molecules. However, the scale-up of such bio-oxidations remains challenging due to the often-low activity, level of expression and stability of P450 biocatalysts. Despite these challenges they are increasingly desirable as recombinant biocatalysts, particularly for the production of drug metabolites. Diclofenac is a widely used anti-inflammatory drug that is persistent in the environment along with the 4'- and 5-hydroxy metabolites...
January 18, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28098354/concealed-accessory-pathways-with-a-single-ventricular-and-two-discrete-atrial-insertion-sites
#13
Ryan T Kipp, Raed Abu Sham'a, Ito Hiroyuki, Frederick T Han, Marwan Refaat, Jonathan C Hsu, Michael E Field, Douglas E Kopp, Gregory M Marcus, Melvin M Scheinman, Kurt S Hoffmayer
BACKGROUND: Atrioventricular reciprocating tachycardia utilizing a concealed accessory pathway is common. It is well appreciated that some patients may have multiple accessory pathways with separate atrial and ventricular insertion sites. METHODS: We present three cases of AVRT utilizing concealed pathways with evidence that each utilizing a single ventricular insertion and two discrete atrial insertion sites. RESULTS: In case one, two discrete atrial insertion sites were mapped in two separate procedures, and only during the second ablation was the Kent potential identified...
January 18, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28098348/impact-of-lysosomal-storage-disorders-on-biology-of-mesenchymal-stem-cells-evidences-from-in-vitro-silencing-of-glucocerebrosidase-gba-and-alpha-galactosidase-a-gla-enzymes
#14
T Squillaro, I Antonucci, N Alessio, A Esposito, M Cipollaro, Mab Melone, G Peluso, L Stuppia, U Galderisi
Lysosomal storage disorders (LDS) comprise a group of rare multisystemic diseases resulting from inherited gene mutations that impair lysosomal homeostasis. The most common LSDs, Gaucher disease (GD) and Fabry disease (FD) are caused by deficiencies in the lysosomal glucocerebrosidase (GBA) and alpha-galactosidase A (GLA) enzymes, respectively. Given the systemic nature of enzyme deficiency, we hypothesized that the stem cell compartment of GD and FD patients might be also affected. Among stem cells, mesenchymal stem cells (MSCs) are a commonly investigated population given their role in hematopoiesis and the homeostatic maintenance of many organs and tissues...
January 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28098344/inhibition-of-oxytocin-and-vasopressin-neuron-activity-in-rat-hypothalamic-paraventricular-nucleus-by-relaxin-3-rxfp3-signalling
#15
Alan Kania, Anna Czerw, Agnieszka Grabowiecka, Camila de Ávila, Tomasz Blasiak, Zenon Rajfur, Marian H Lewandowski, Grzegorz Hess, Elena Timofeeva, Andrew L Gundlach, Anna Blasiak
KEY-POINTS: Relaxin-3 is a stress-responsive neuropeptide that acts at its cognate receptor, RXFP3, to alter behaviours including feeding. In this study, we have demonstrated a direct, RXFP3-dependent, inhibitory action of relaxin-3 on oxytocin and vasopressin PVN neuron electrical activity, a putative cellular mechanism of orexinergic actions of relaxin-3. We observed a Gαi/o -protein-dependent inhibitory influence of selective RXFP3 activation on PVN neuronal activity in vitro and demonstrated a direct action of RXFP3 activation on oxytocin and vasopressin PVN neurons, confirmed by their abundant expression of RXFP3 mRNA...
January 18, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28098342/the-evolution-of-rgs-proteins-as-drug-targets-20%C3%A2-years-in-the-making-iuphar-review-x
#16
REVIEW
B Sjögren
Regulators of G protein signaling (RGS) proteins are celebrating the 20(th) anniversary of their discovery. The unveiling of this new family of negative regulators of G protein signaling in the mid-1990's solved a persistent conundrum in the G protein signaling field, in which the rate of deactivation of signaling cascades in vivo could not be replicated in exogenous systems. Since then, there has been tremendous advancement in the knowledge of RGS protein structure, function, regulation and their role as novel drug targets...
January 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28098255/annual-time-series-analysis-of-aqueous-edna-reveals-ecologically-relevant-dynamics-of-lake-ecosystem-biodiversity
#17
Iliana Bista, Gary R Carvalho, Kerry Walsh, Mathew Seymour, Mehrdad Hajibabaei, Delphine Lallias, Martin Christmas, Simon Creer
The use of environmental DNA (eDNA) in biodiversity assessments offers a step-change in sensitivity, throughput and simultaneous measures of ecosystem diversity and function. There remains, however, a need to examine eDNA persistence in the wild through simultaneous temporal measures of eDNA and biota. Here, we use metabarcoding of two markers of different lengths, derived from an annual time series of aqueous lake eDNA to examine temporal shifts in ecosystem biodiversity and in an ecologically important group of macroinvertebrates (Diptera: Chironomidae)...
January 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28098214/clinical-roles-of-lung-volumes-detected-by-body-plethysmography-and-helium-dilution-in-asthmatic-patients-a-correlation-and-diagnosis-analysis
#18
Jian Luo, Dan Liu, Guo Chen, Binmiao Liang, Chuntao Liu
Roles of lung volumes in asthma remain controversial. We aimed to evaluate the efficacy of lung volumes in differentiating asthma severity levels. Consecutive outpatients with chronic persistent asthma were enrolled, and body plethysmography (BP) and helium dilution (HD) were performed simultaneously to extract RV%pred, TLC%pred, and RV/TLC. Significant negative correlations were found between FEV1%pred and RV%pred (r = -0.557, P < 0.001), TLC%pred (r = -0.387, P < 0.001), and RV/TLC (r = -0...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098197/dantrolene-versus-amiodarone-for-cardiopulmonary-resuscitation-a-randomized-double-blinded-experimental-study
#19
Thomas Wiesmann, Dennik Freitag, Wolfgang Dersch, Daphne Eschbach, Marc Irqsusi, Thorsten Steinfeldt, Hinnerk Wulf, Carsten Feldmann
Dantrolene was introduced for treatment of malignant hyperthermia. It also has antiarrhythmic properties and may thus be an alternative to amiodarone for the treatment of ventricular fibrillation (VF). Aim of this study was to compare the return of spontaneous circulation (ROSC) with dantrolene and amiodarone in a pig model of cardiac arrest. VF was induced in anesthetized pigs. After 8 min of untreated VF, chest compressions and ventilation were started and one of the drugs (amiodarone 5 mg kg(-1), dantrolene 2...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098117/denosumab-for-the-treatment-of-bisphosphonate-resistant-hypercalcemia-in-a-hemodialysis-patient
#20
Omar Dahmani, Christine Sophoclis, Malika Kebir, Djemai Bouguern, Aboubacry Sakho, Pascale Demarchi
The acronym of malignancy, iatrogenic, intoxication and immobilization, sarcoidosis, hyperparathyroidism and hyperthyroidism, milk-alkali syndrome, and paget is very helpful in diagnosing hypercalcemia. We report on a 94-year-old patient with history of end-stage renal failure secondary to benign nephroangiosclerosis, who was on maintenance hemodialysis during dialysis, his blood chemistry revealed mild hypercalcemia (2.66 mmol/L) with normal level of intact primary hyperparathyroidism (32.37 ng/mL) mandating the discontinuation of Vitamin D[3]...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
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