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https://www.readbyqxmd.com/read/29330841/delayed-replantation-of-an-avulsed-immature-permanent-incisor-and-apexification-using-a-novel-fast-setting-calcium-silicate-cement-containing-fluoride-a-3-year-follow-up-case-report
#1
A Vafaei, B Ranjkesh, L Erfanparast, H Løvschall
BACKGROUND: Traumatic tooth avulsion requires an urgent intervention to replant the tooth. Prolonged post-injury dry extra-oral conditions worsen the prognosis and increase the risk of root resorption. Fluoride has the potential to delay replacement resorption. Calcium silicate cements (CSC) are used to seal the root canal system and to stimulate periapical regeneration in immature open apex teeth (apexification). This report suggests the application of a novel fast-setting CSC with fluoride for apexification in an attempt to hinder root resorption...
January 12, 2018: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/29319835/gastrisk-bypass-fyller-50-%C3%A3-r-fetmaoperationen-som-visade-sig-fungera-mot-diabetes
#2
Per Videhult
Mason performed the first gastric bypass (GBP) for obesity in 1967 after having observed substantial weight loss in patients operated for gastric ulcer.  The weight loss after GBP is 30 % and 2/3 of patients with type II diabetes can stop their medication. Half of the patients can stop medication for hypertension or hyperlipidemia, 75% are cured from reflux and obstructive sleep apnea. GBP prolongs survival especially among diabetics. Restriction and malabsorption is of minor importance for weight loss. The mechanisms underlying weight loss and diabetes remissions are endocrine...
January 9, 2018: Läkartidningen
https://www.readbyqxmd.com/read/29318379/osteoinduction-and-conduction-through-absorbable-bone-substitute-materials-based-on-calcium-sulfate-in-vivo-biological-behavior-in-a-rabbit-model
#3
D Pförringer, N Harrasser, H Mühlhofer, M Kiokekli, A Stemberger, M van Griensven, M Lucke, R Burgkart, A Obermeier
Calcium sulfate (CS) can be used as an antibiotically impregnated bone substitute in a variety of clinical constellations. Antibiotically loaded bone substitutes find specific application in orthopedic and trauma surgery to prevent or treat bone infections especially in relation to open bone defects. However, its use as a structural bone graft reveals some concerns due to its fast biodegradation. The addition of calcium carbonate and tripalmitin makes CS formulations more resistant to resorption leaving bone time to form during a prolonged degradation process...
January 9, 2018: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29315892/effects-of-fasted-vs-fed-state-exercise-on-performance-and-post-exercise-metabolism-a-systematic-review-meta-analysis
#4
REVIEW
Tom P Aird, Robert W Davies, Brian P Carson
The effects of nutrition on exercise metabolism and performance remains an important topic among sports scientists, clinical, and athletic populations. Recently, fasted exercise has garnered interest as a beneficial stimulus which induces superior metabolic adaptations to fed exercise in key peripheral tissues. Conversely, pre-exercise feeding augments exercise performance compared with fasting conditions. Given these seemingly divergent effects on performance and metabolism, an appraisal of the literature is warranted...
January 6, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29311162/differential-expression-and-remodeling-of-transient-outward-potassium-currents-in-human-left-ventricles
#5
Eric K Johnson, Steven J Springer, Wei Wang, Edward J Dranoff, Yan Zhang, Evelyn M Kanter, Kathryn A Yamada, Jeanne M Nerbonne
BACKGROUND: Myocardial, transient, outward currents, Ito, have been shown to play pivotal roles in action potential (AP) repolarization and remodeling in animal models. The properties and contribution of Ito to left ventricular (LV) repolarization in the human heart, however, are poorly defined. METHODS AND RESULTS: Whole-cell, voltage-clamp recordings, acquired at physiological (35°C to 37°C) temperatures, from myocytes isolated from the LV of nonfailing human hearts identified 2 distinct transient currents, Ito,fast (Ito,f) and Ito,slow (Ito,s), with significantly (P<0...
January 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29306335/recurrent-hypoglycaemia-in-a-toddler-on-%C3%AE-blocker-therapy
#6
Véronique Pépin, Nancy Gagné, Diane Rottembourg
Hypoglycaemia is a well-known side effect of Propranolol. We described the case of a child presenting severe and recurrent Propranolol-induced hypoglycaemia. Those episodes were not related to prolonged fasting and were associated with only mild ketosis. Thus, therapy with β blockers may not only aggravate classical ketotic hypoglycaemia but also interfere with glucose metabolism.
January 8, 2018: Cardiology in the Young
https://www.readbyqxmd.com/read/29296083/enhanced-antitumor-efficacy-of-doxorubicin-encapsulated-halloysite-nanotubes
#7
Kai Li, Yongxing Zhang, Mengting Chen, Yangyang Hu, Weiliang Jiang, Li Zhou, Sisi Li, Min Xu, Qinghua Zhao, Rong Wan
To improve the antitumor efficacy of doxorubicin (DOX) and provide novel clinical treatment of gastric cancer, halloysite nanotubes (HNTs) loaded with DOX were encapsulated by soybean phospholipid (LIP) and the formed HNTs/DOX/LIP was systematically characterized via different techniques. The in vitro anticancer activity of HNTs/DOX/LIP was examined using an MTT assay. The antitumor efficacy and biocompatibility were monitored by measuring the tumor volume and assessing the blood routine and serum biochemistry using an ectopic implantation cancer model...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29289718/a-high-fat-high-sugar-western-diet-alters-dorsal-striatal-glutamate-opioid-and-dopamine-transmission-in-mice
#8
Brandon M Fritz, Braulio Muñoz, Fuqin Yin, Casey Bauchle, Brady K Atwood
Understanding neuroadaptations involved in obesity is critical for developing new approaches to treatment. Diet-induced neuroadaptations within the dorsal striatum have the capacity to drive excessive food seeking and consumption. Five week old C57BL/6J mice consumed a high-fat, high-sugar 'western diet' (WD) or a control 'standard diet' (SD) for 16 weeks. Weight gain, glucose tolerance, and insulin tolerance were measured to confirm an obese-like state. Following these 16 weeks, electrophysiological recordings were made from medium spiny neurons (MSNs) in the medial (DMS) and lateral (DLS) portions of dorsal striatum to evaluate diet effects on neuronal excitability and synaptic plasticity...
December 28, 2017: Neuroscience
https://www.readbyqxmd.com/read/29285451/the-prevalence-of-new-onset-diabetes-mellitus-after-renal-transplantation-in-patients-with-immediate-posttransplant-hyperglycemia-in-a-tertiary-care-centre
#9
Saba Samad Memon, Nikhil Tandon, Sandeep Mahajan, V K Bansal, Asuri Krishna, Arunkumar Subbiah
Objectives: This study aimed to determine the prevalence of immediate posttransplant hyperglycemia and new onset diabetes after renal transplantation (NODAT). It also aims at answering whether posttransplant hyperglycemia per se is a risk factor for future development of NODAT. Methods: A retrospective study was conducted among patients undergoing kidney transplantation under a single surgical unit in a tertiary care hospital in the past 5 years. All known patients with diabetes were excluded from the study...
November 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29282876/a-potential-liquid-organic-hydrogen-carrier-2-n-methylbenzyl-pyridine-with-fast-h2-release-and-stable-activity-in-consecutive-hydrogenation-dehydrogenation-cycles
#10
Jinho Oh, Kwanyong Jeong, Tae Wan Kim, Hyunguk Kwon, Jeong Woo Han, Ji Hoon Park, Young-Woong Suh
For H₂ storage based on reversible hydrogenation and dehydrogenation of a liquid organic hydrogen carrier (LOHC), we herein demonstrate a potential of 2-(n-methylbenzyl)pyridine (MBP) with the H₂ storage density of 6.15 wt%. This material and the corresponding perhydro product (H12-MBP) exist in liquid state at room temperature. Remarkably, H₂ release is much faster from H12-MBP over Pd/C than from the benchmark perhydro benzyltoluene over Pt/C at lower temperatures than 270 °C due to the addition of N atom into the benzene ring...
December 28, 2017: ChemSusChem
https://www.readbyqxmd.com/read/29277679/intermittent-fasting-promotes-prolonged-associative-interactions-during-synaptic-tagging-capture-by-altering-the-metaplastic-properties-of-the-ca1-hippocampal-neurons
#11
Ananya Dasgupta, Joonki Kim, Anoop Manakkadan, Thiruma V Arumugam, Sreedharan Sajikumar
Metaplasticity is the inherent property of a neuron or neuronal population to undergo activity-dependent changes in neural function that modulate subsequent synaptic plasticity. Here we studied the effect of intermittent fasting (IF) in governing the interactions of associative plasticity mechanisms in the pyramidal neurons of rat hippocampal area CA1. Late long-term potentiation and its associative mechanisms such as synaptic tagging and capture at an interval of 120 min were evaluated in four groups of animals, AL (Ad libitum), IF12 (daily IF for 12 h), IF16 (daily IF for 16 h) and EOD (every other day IF for 24 h)...
December 19, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/29276477/cholinergic-modulation-of-cortical-microcircuits-is-layer-specific-evidence-from-rodent-monkey-and-human-brain
#12
REVIEW
Joshua Obermayer, Matthijs B Verhoog, Antonio Luchicchi, Huibert D Mansvelder
Acetylcholine (ACh) signaling shapes neuronal circuit development and underlies specific aspects of cognitive functions and behaviors, including attention, learning, memory and motivation. During behavior, activation of muscarinic and nicotinic acetylcholine receptors (mAChRs and nAChRs) by ACh alters the activation state of neurons, and neuronal circuits most likely process information differently with elevated levels of ACh. In several brain regions, ACh has been shown to alter synaptic strength as well. By changing the rules for synaptic plasticity, ACh can have prolonged effects on and rearrange connectivity between neurons that outlasts its presence...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/29261205/dynamical-decoupling-of-nitroxides-in-o-terphenyl-a-study-of-temperature-deuteration-and-concentration-effects
#13
Janne Soetbeer, Miriam Hülsmann, Adelheid Godt, Yevhen Polyhach, Gunnar Jeschke
We have characterized the temperature dependent transverse relaxation for 100 μM protonated and deuterated nitroxides in both protonated and deuterated o-terphenyl (OTP and dOTP) in distinct temperature regimes between 10 K and room temperature (RT). The choice of sample compositions allowed for a clear separation into slow and fast relaxation contributions based on a sum of two stretched exponential (SSE) parameterization between 10 and 60 K, and likewise at RT. The slow contribution is purely matrix dependent, while the fast process is determined by an interplay between a molecule and a matrix...
December 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29249024/investigations-of-microbial-degradation-of-polycyclic-aromatic-hydrocarbons-based-on-13c-labeled-phenanthrene-in-a-soil-co-contaminated-with-trace-elements-using-a-plant-assisted-approach
#14
Anna Wawra, Wolfgang Friesl-Hanl, Anna Jäger, Markus Puschenreiter, Gerhard Soja, Thomas Reichenauer, Andrea Watzinger
Co-contaminations of soils with organic and inorganic pollutants are a frequent environmental problem. Due to their toxicity and recalcitrance, the heterogeneous pollutants may persist in soil. The hypothesis of this study was that degradation of polycyclic aromatic hydrocarbons (PAHs) is enhanced if heavy metals in soil are immobilized and their bioavailability reduced. For metal immobilization and enhanced biodegradation, distinct mineral and organic soil amendments (iron oxides, gravel sludge, biochar) were deployed in an incubation batch experiment...
December 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29244064/%C3%AE-cell-control-of-insulin-production-during-starvation-refeeding-in-male-rats
#15
Brandon B Boland, Charles Brown, Cristina Alarcon, Damien Demozay, Joseph S Grimsby, Christopher J Rhodes
Mammalian metabolism has evolved to adapt relative to changes in nutrient status. Insulin, the key anabolic hormone, facilitates intracellular storage of nutrient fuels and plays a pivotal role in the transition away from catabolism upon refeeding. While circulating insulin relative to nutrient levels has been well-characterized during both fasting and refeeding, how pancreatic β-cell biology caters to acute changes in insulin demand has not been sufficiently addressed. Here, we examined the dynamics of (pro)insulin production and associated changes in β-cell ultrastructure during refeeding after a prolonged 72 hour fast in male rats...
December 13, 2017: Endocrinology
https://www.readbyqxmd.com/read/29242102/shock-reduction-with-antitachycardia-pacing-before-and-during-charging-for-fast-ventricular-tachycardias-in-patients-with-implantable-defibrillators
#16
Paolo Domenico Dallaglio, Ignasi Anguera, José B Martínez Ferrer, Luisa Pérez, Xavier Viñolas, Jose Manuel Porres, Adolfo Fontenla, Javier Alzueta, Juan Gabriel Martínez, Aníbal Rodríguez, Nuria Basterra, Xavier Sabaté
INTRODUCTION AND OBJECTIVES: Fast ventricular tachycardias in the ventricular fibrillation zone in patients with an implantable cardioverter-defibrillator are susceptible to antitachycardia pacing (ATP) termination. Some manufacturers allow programming 2 ATP bursts: before charging (BC) and during (DC) charging. The aim of this study was to describe the safety and effectiveness of ATP BC and DC for fast ventricular tachycardias in the ventricular fibrillation zone in patients with an implantable cardioverter-defibrillator in daily clinical practice...
December 11, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29239964/superior-efficacy-of-lipid-emulsion-infusion-over-serum-alkalinization-in-reversing-amitriptyline-induced-cardiotoxicity-in-guinea-pig
#17
Shogo Tsujikawa, Tadashi Matsuura, Kotaro Hori, Takashi Mori, Miyuki Kuno, Kiyonobu Nishikawa
BACKGROUND: Tricyclic antidepressants (TCAs) are a major cause of fatal drug poisoning due to their cardiotoxicity. Alkalinization by sodium bicarbonate (NaHCO3) administration, the first-line therapy for TCA-induced cardiotoxicity, can occasionally yield insufficient efficacy in severe cases. Because most TCAs are highly lipophilic, lipid emulsion may be more effective than alkalinization. However, it remains to be determined whether lipid emulsion is more beneficial than alkalinization in reversing amitriptyline-induced cardiotoxicity...
December 11, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29239242/fluconazole-loaded-solid-lipid-nanoparticles-topical-gel-for-treatment-of-pityriasis-versicolor-formulation-and-clinical-study
#18
Shaimaa El-Housiny, Maii Atef Shams Eldeen, Yasmina Ahmed El-Attar, Hoda A Salem, Dalia Attia, Ehab R Bendas, Mohamed A El-Nabarawi
Solid lipid nanoparticles (SLNs) are very potential formulations for topical delivery of antifungal drugs. Hence, the purpose of this research was to formulate the well-known antifungal agent Fluconazole (FLZ)-loaded SLNs topical gel to improve its efficiency for treatment of Pityriasis Versicolor (PV). FLZ-SLNs were prepared by modified high shear homogenization and ultrasonication method using different concentration of solid lipid (Compritol 888 ATO, Precirol ATO5) and surfactant (Cremophor RH40, Poloxamer 407)...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29238968/immigrants-coping-with-transnational-deaths-and-bereavement-the-influence-of-migratory-loss-and-anticipatory-grief
#19
Olena Nesteruk
This study examines immigrants' experiences of bereavement and coping with the deaths of family members in a transnational context. Data were collected through in-depth personal interviews with middle-aged and older immigrants from different countries of origin, who have been living in the United States for a majority of their adult lives. Thematic analysis of participants' narratives showed that immigrants' geographic distance from family complicated caregiving circumstances and rituals surrounding burial, and impacted the grieving process...
December 14, 2017: Family Process
https://www.readbyqxmd.com/read/29226657/short-centrifugation-to-ameliorate-turn-around-time-in-routine-coagulation-testing
#20
Albrecht Pfaefflin, Karen Schuster, Ruediger Braun
BACKGROUND: Fast and timely analysis of coagulation parameters is mandatory in hospital laboratories as the results are decisive for diagnosis and treatment in emergency patients. An important factor in TAT (turn-around time) prolongation is centrifugation of all samples prior to analysis. According to literature and most current SOPs (standard operation protocols) centrifugation time is given with 10 minutes at approximately 2,000 g and cannot be reduced without infringement of standards...
November 1, 2017: Clinical Laboratory
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