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https://www.readbyqxmd.com/read/28633971/manganese-enhanced-magnetic-resonance-imaging-depicts-brain-activity-in-models-of-acute-and-chronic-pain-a-new-window-to-study-experimental-spontaneous-pain
#1
I M Devonshire, J J Burston, L Xu, A Lillywhite, M J Prior, D J G Watson, C M Greenspon, S J Iwabuchi, D P Auer, V Chapman
Application of functional imaging techniques to animal models is vital to understand pain mechanisms, but is often confounded by the need to limit movement artefacts with anaesthesia, and a focus on evoked responses rather than clinically relevant spontaneous pain and related hyperalgesia. The aim of the present study was to investigate the potential of manganese-enhanced magnetic resonance imaging (MEMRI) to measure neural responses during on-going pain that underpins hyperalgesia in pre-clinical models of nociception...
June 17, 2017: NeuroImage
https://www.readbyqxmd.com/read/28632392/lewis-acid-promoted-hydrogenation-of-co2-and-hcoo-by-amine-boranes-mechanistic-insight-from-computational-approach
#2
Lisa Roy, Boyli Ghosh, Ankan Paul
We employ quantum chemical calculations to study the hydrogenation of carbon dioxide by amine-boranes, NMe3BH3 ((Me3)AB) and NH3BH3 (AB) weakly bonded to a bulkier Lewis acid, Al(C6F5)3 (LA). Additionally, computations has also been conducted to elucidate the mechanism of hydrogenation of carbon dioxide by (Me3)AB while captured between one Lewis Base (P(o-tol3), (LB)) and two Lewis acids, Al(C6F5)3. In agreement to the experiments, our computational study predicts that hydride transfer to conjugated HCO2(‒), generated in the reaction of (Me3)AB-LA with CO2, is not feasible...
June 20, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28630641/amisulpride-withdrawal-dyskinesia-a-case-report
#3
Yu-Chi Lo, Ying-Chieh Peng
BACKGROUND: The effects of antipsychotic drug withdrawal have been inadequately studied. Case reports have described dyskinesia occurring in patients with several antipsychotics withdrawn, but studies on amisulpride withdrawal dyskinesia are lacking. CASE PRESENTATION: A 63-year-old man, who was diagnosed with schizophrenia at age 49, received amisulpride treatment since age 62. The dosage of amisulpride was reduced from 200 to 50 mg/day because of occurrence of akathisia during one admission...
2017: Annals of General Psychiatry
https://www.readbyqxmd.com/read/28629826/silencing-of-fkbp51-alleviates-the-mechanical-pain-threshold-inhibits-drg-inflammatory-factors-and-pain-mediators-through-the-nf-kappab-signaling-pathway
#4
Hong-Mei Yu, Qi Wang, Wen-Bo Sun
Neuropathic pain is chronic pain caused by lesions or diseases of the somatosensory system, currently available analgesics provide only temporal relief. The precise role of FK506 binding protein 51 (FKBP51) in neuropathic pain induced by chronic constriction injury (CCI) is not clear. The purpose of the present study was to investigate the effects and possible mechanisms of FKBP51 in neuropathic pain in the rat model of CCI. Our results showed that FKBP51 was obviously upregulated in a time-dependent manner in the dorsal root ganglion (DRG) in CCI rats...
June 16, 2017: Gene
https://www.readbyqxmd.com/read/28627373/development-and-application-of-a-population-physiologically-based-pharmacokinetic-model-for-penicillin-g-in-swine-and-cattle-for-food-safety-assessment
#5
Miao Li, Ronette Gehring, Jim E Riviere, Zhoumeng Lin
Penicillin G is a widely used antimicrobial in food-producing animals, and one of the most predominant drug residues in animal-derived food products. Due to reduced sensitivity of bacteria to penicillin, extralabel use of penicillin G is common, which may lead to violative residues in edible tissues and cause adverse reactions in consumers. This study aimed to develop a physiologically based pharmacokinetic (PBPK) model to predict drug residues in edible tissues and estimate extended withdrawal intervals for penicillin G in swine and cattle...
June 13, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28626990/exhaled-breath-profiles-in-the-monitoring-of-loss-of-control-and-clinical-recovery-in-asthma
#6
Paul Brinkman, Marianne A van de Pol, Marije G Gerritsen, Lieuwe D Bos, Tamara Dekker, Barbara S Smids, Anirban Sinha, Christof J Majoor, Marlous M Sneeboer, Hugo H Knobel, Teunis J Vink, Frans H de Jongh, René Lutter, Peter J Sterk, Niki Fens
BACKGROUND: Asthma is a chronic inflammatory airway disease, associated with episodes of exacerbations. Therapy with inhaled corticosteroids (ICS) targets airway inflammation, which aims to maintain and restore asthma control. Clinical features are only modestly associated with airways inflammation. Therefore, we hypothesized that exhaled volatile metabolites identify longitudinal changes between clinically stable episodes and loss of asthma control. OBJECTIVES: To determine whether exhaled volatile organic compounds (VOCs) as measured by gas-chromatography / mass-spectrometry (GC/MS) and electronic nose (eNose) technology discriminate between clinically stable and unstable episodes of asthma...
June 19, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28626932/dentate-gyrus-neurogenesis-ablation-via-cranial-irradiation-enhances-morphine-self-administration-and-locomotor-sensitization
#7
Sarah E Bulin, Matthew L Mendoza, Devon R Richardson, Kwang H Song, Timothy D Solberg, Sanghee Yun, Amelia J Eisch
Adult dentate gyrus (DG) neurogenesis is important for hippocampal-dependent learning and memory, but the role of new neurons in addiction-relevant learning and memory is unclear. To test the hypothesis that neurogenesis is involved in the vulnerability to morphine addiction, we ablated adult DG neurogenesis and examined morphine self-administration (MSA) and locomotor sensitization. Male Sprague-Dawley rats underwent hippocampal-focused, image-guided X-ray irradiation (IRR) to eliminate new DG neurons or sham treatment (Sham)...
June 19, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28626198/the-therapeutic-effect-of-dexmedetomidine-on-rat-diabetic-neuropathy-pain-and-the-mechanism
#8
Yuecheng Lu, Baohua Lin, Junmin Zhong
Diabetic neuropathy pain (DNP) is a common chronic complication of diabetes characterized by spontaneous pain, hyperalgesia and allodynia. Dexmedetomidine is a selective α2 adrenergic agonist that relieves sympathetic nervous tension and reduces the release of glutamate. Thus, it is possible that dexmedetomidine may relieve DNP as well. In this study, we examined the effect of dexmedetomidine on DNP in the presence or absence of the α2 adrenergic antagonist yohimbine in rats utilizing a streptozotocin (STZ)-induced diabetes as a model of DNP...
June 14, 2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28625776/beta-carotene-preferentially-regulates-chicken-myoblast-proliferation-withdrawal-and-differentiation-commitment-via-bco1-activity-and-retinoic-acid-production
#9
C Praud, S Al Ahmadieh, E Voldoire, Y Le Vern, E Godet, N Couroussé, B Graulet, E Le Bihan Duval, C Berri, M J Duclos
The enzyme β-carotene oxygenase 1 (BCO1) catalyzes the breakdown of provitamin A, including beta-carotene (BC), into retinal, prior to its oxidation into retinoic acid (RA). Allelic variation at the BCO1 locus results in differential expression of its mRNA and affects carotenoid metabolism specifically in chicken Pectoralis major muscle. In this context, the aim of this study was to evaluate the potential myogenic effect of BC and the underlying mechanisms in chicken myoblasts. BCO1 mRNA was detected in myoblasts derived from chicken satellite cells...
June 15, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28625704/mental-health-consequences-of-exercise-withdrawal-a-systematic-review
#10
REVIEW
Ali A Weinstein, Christine Koehmstedt, Willem J Kop
OBJECTIVE: A sedentary lifestyle has been associated with mental health disorders. Many medical conditions result in the cessation of exercise, which may increase the risk of developing mental health problems. The purpose of this article is to systematically review the literature examining the effects of exercise withdrawal on mental health. METHOD: Literature was searched using PubMed, PsycINFO, and SPORTdiscus for studies that experimentally manipulated the withdrawal of exercise and included mental health as outcome measure...
June 6, 2017: General Hospital Psychiatry
https://www.readbyqxmd.com/read/28625146/cephalosporins-associated-pseudomembranous-colitis-in-an-elderly-male-patient-a-case-report
#11
Prashant Maheshbhai Parmar, Vipul V Solanki, Manish J Barvaliya, Bhavesh Chavada, C B Tripathi
A 78 year old male patient developed pseudomembranous colitis after administration of Ceftriaxone and Cefazolin for the treatment of pleural effusion. The reaction was confirmed by Ultrasonography and CT scan. Causative agents were stopped and patient was managed by systemic therapy. Patient was expired due to respiratory complications as there was complexity in management of disease due to development of pseudomembranous colitis. Increase awareness of prescribers for high-risk drugs, close monitoring, with immediate withdrawal of the culprit drug can reduce the complexity of management which occurred due to development of such adverse drug reaction...
June 15, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28624108/modification-of-immunosuppressive-therapy-as-risk-factor-for-complications-after-liver-transplantation
#12
REVIEW
Paolo De Simone, Paola Carrai, Laura Coletti, Davide Ghinolfi, Stefania Petruccelli, Franco Filipponi
Management of complications post-liver transplantation (LT) includes immunosuppressive manipulations with the aim to reduce the overall burden of immunologic suppression and compensate for renal, cardiovascular, metabolic toxicities, and for the increased oncologic risk. Two approaches can be implemented to reduce immunosuppression-related adverse events: upfront schedules tailored to the pretransplant individual patient's risk profile versus downstream modifications in the event of immunosuppression-related complications...
April 2017: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/28620501/efficacy-of-lenvatinib-in-a-patient-with-anaplastic-thyroid-cancer
#13
Kazuyuki Oishi, Daisuke Takabatake, Yuichi Shibuya
We experienced a case of an 82-year-old woman who presented to our hospital with a 1-month history of dysphagia and dyspnea. Cervical contrast-enhanced computed tomography revealed diffuse thyroid neoplasms causing significant tracheal stenosis with tumors, particularly of the superior mediastinum, which were associated with an embolism of the brachiocephalic vein and suspected invasion to the bilateral common carotid arteries. Anaplastic thyroid cancer (ATC) was diagnosed by fine-needle aspiration; thus, emergency tracheostomy and gastrostomy were performed...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28619359/postpartum-estrogen-withdrawal-impairs-gabaergic-inhibition-and-ltd-induction-in-basolateral-amygdala-complex-via-down-regulation-of-gpr30
#14
Rong Yang, Baofeng Zhang, Tingting Chen, Suyun Zhang, Ling Chen
Postpartum estrogen (E2) withdrawal is known to be a particularly vulnerable time for depressive symptoms. In this study, ovariectomized (OVX) mice were treated with co-administration of estradiol benzoate and progesterone (E2/P4) followed by administration of E2 alone (E2) and a subsequent E2 withdrawal (EW) to mimic the hormonal changes during pregnancy and postpartum. The objective of this study was to investigate the influence of E2 withdrawal after hormone-simulated pregnancy on synaptic function and plasticity in basolateral amygdala complex (BLA)...
June 13, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28619187/safety-and-efficacy-of-long-term-use-of-sodium-oxybate-for-narcolepsy-with-cataplexy-in-routine-clinical-practice
#15
Panagis Drakatos, Dimosthenis Lykouras, Grainne D'Ancona, Sean Higgins, Nadia Gildeh, Raluca Macavei, Ivana Rosenzweig, Joerg Steier, Adrian J Williams, Rexford Muza, Brian D Kent, Guy Leschziner
BACKGROUND: Sodium oxybate is licensed in Europe for the treatment of narcolepsy with cataplexy in adults. The aim of this study was to assess the efficacy and safety of sodium oxybate in clinical practice in patients with narcolepsy and cataplexy refractory to other treatments. MATERIALS AND METHODS: This was a retrospective single centre study including patients with severe narcolepsy with cataplexy refractory to other treatments, who were initiated on sodium oxybate between 2009 and 2015...
July 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28617422/reduced-narcotic-and-sedative-utilization-in-a-nicu-after-implementation-of-pain-management-guidelines
#16
D Rana, B Bellflower, J Sahni, A J Kaplan, N T Owens, E L Arrindell, A J Talati, R Dhanireddy
OBJECTIVE: To assess the opioid and benzodiazepine usage in a level IV NICU after implementation of pain guidelines. STUDY DESIGN: Guidelines were developed for infants undergoing surgical procedures and infants on mechanical ventilation. Data collected for period 1 (July to December 2013) and period 2 (March to August 2014). RESULTS: Gestational age, birth weight and infants with hypoxic respiratory failure or requiring major procedures were comparable in two periods...
June 15, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28615247/lithium-induced-ndi-acetazolamide-reduces-polyuria-but-does-not-improve-urine-concentrating-ability
#17
Theun de Groot, Joan Doornebal, Birgitte M Christensen, Simone C Cockx, Anne P Sinke, Ruben Baumgarten, Jennifer J Bedford, Robert J Walker, Jack F Wetzels, Peter M T Deen
Lithium is the mainstay treatment for patients with bipolar disorder, but generally causes nephrogenic diabetes insipidus (NDI), a disorder in which the renal urine concentrating ability has become vasopressin-insensitive. Li-NDI is caused by lithium uptake by collecting duct principal cells and downregulation of AQP2 water channels, which are essential for water uptake from pro-urine. Recently, we found that the prophylactic administration of acetazolamide to mice effectively attenuated Li-NDI. To evaluate whether acetazolamide might benefit lithium-treated patients, we administered acetazolamide to mice with established Li-NDI and six patients with a lithium-induced urinary concentrating defect...
June 14, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28613124/low-risk-of-seizures-with-slow-flumazenil-infusion-and-routine-anticonvulsant-prophylaxis-for-high-dose-benzodiazepine-dependence
#18
Stefano Tamburin, Marco Faccini, Rebecca Casari, Angela Federico, Laura Morbioli, Enrica Franchini, Luigi Giuseppe Bongiovanni, Fabio Lugoboni
High-dose benzodiazepine (BZD) dependence represents an emerging and under-reported addiction phenomenon and is associated with reduced quality of life. To date there are no guidelines for the treatment of high-dose BZD withdrawal. Low-dose slow flumazenil infusion was reported to be effective for high-dose BZD detoxification, but there is concern about the risk of convulsions during this treatment. We evaluated the occurrence of seizures in 450 consecutive high-dose BZD dependence patients admitted to our unit from April 2012 to April 2016 for detoxification with low-dose slow subcutaneous infusion of flumazenil associated with routine anticonvulsant prophylaxis...
June 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28609318/biochemical-and-pharmacological-characterization-of-a-mice-model-of-complex-regional-pain-syndrome
#19
Vaskar Das, Jeffrey S Kroin, Mario Moric, Asokumar Buvanendran
BACKGROUND AND OBJECTIVES: Complex regional pain syndrome is a challenging disease to treat. Recently, a mouse fracture model of complex regional pain syndrome has been developed that has many signs of the clinical syndrome. However, many aspects of the sensory neuron biochemistry and behavioral and pharmacological characterization of this model remain to be clarified. METHODS: Mice were randomly assigned to fracture/cast or control (naive) groups. Fracture/cast mice underwent a closed distal tibia facture, with hindlimb wrapped in casting tape for 3 weeks...
July 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28609296/neuroanatomical-pathways-underlying-the-effects-of-hypothalamo-hypophysial-adrenal-hormones-on-exploratory-activity
#20
Robert Lalonde, Catherine Strazielle
When injected via the intracerebroventricular route, corticosterone-releasing hormone (CRH) reduced exploration in the elevated plus-maze, the center region of the open-field, and the large chamber in the defensive withdrawal test. The anxiogenic action of CRH in the elevated plus-maze also occurred when infused in the basolateral amygdala, ventral hippocampus, lateral septum, bed nucleus of the stria terminalis, nucleus accumbens, periaqueductal grey, and medial frontal cortex. The anxiogenic action of CRH in the defensive withdrawal test was reproduced when injected in the locus coeruleus, while the amygdala, hippocampus, lateral septum, nucleus accumbens, and lateral globus pallidus contribute to center zone exploration in the open-field...
June 13, 2017: Reviews in the Neurosciences
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