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https://www.readbyqxmd.com/read/28821005/anticonvulsant-effect-of-cannabidiol-in-the-pentylenetetrazole-model-pharmacological-mechanisms-electroencephalographic-profile-and-brain-cytokine-levels
#1
Luciano R Vilela, Isabel V Lima, Érica B Kunsch, Hyorrana Priscila P Pinto, Aline S de Miranda, Érica Leandro M Vieira, Antônio Carlos P de Oliveira, Marcio Flávio D Moraes, Antônio L Teixeira, Fabricio A Moreira
Cannabidiol (CBD), the main nonpsychotomimetic compound from Cannabis sativa, inhibits experimental seizures in animal models and alleviates certain types of intractable epilepsies in patients. Its pharmacological profile, however, is still uncertain. Here we tested the hypothesis that CBD anticonvulsant mechanisms are prevented by cannabinoid (CB1 and CB2) and vanilloid (TRPV1) receptor blockers. We also investigated its effects on electroencephalographic (EEG) activity and hippocampal cytokines in the pentylenetetrazole (PTZ) model...
August 15, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28815938/optimization-of-recombinant-%C3%AE-glucuronidase-hydrolysis-and-quantification-of-eight-urinary-cannabinoids-and-metabolites-by-liquid-chromatography-tandem-mass-spectrometry
#2
Cristina Sempio, Karl B Scheidweiler, Allan J Barnes, Marilyn A Huestis
Prolonged urinary cannabinoid excretion in chronic frequent cannabis users confounds identification of recent cannabis intake that may be important in treatment, workplace, clinical, and forensic testing programs. In addition, differentiation of synthetic Δ9-tetrahydrocannabinol (THC) intake from cannabis plant products might be an important interpretive issue. THC, 11-hydroxy-THC (11-OH-THC) and 11-nor-9-carboxy-THC (THCCOOH) urine concentrations were evaluated during previous controlled cannabis administration studies following tandem alkaline/E...
June 14, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28813088/cognitive-dysfunction-in-corticobasal-degeneration
#3
Laís Machado de Oliveira, Igor Barcellos, Hélio A G Teive, Renato Puppi Munhoz
Corticobasal degeneration (CBD) was originally described as a distinct clinicopathological entity in 1967. Since then, different phenotypic presentations have emerged as possible manifestations of CBD histopathological findings. In addition, pathophysiological findings and the molecular basis have been delineated and several aspects of its cognitive manifestations have been clarified. Thus, not only the spectrum of what is currently designated as CBD has expanded, but overlap with other degenerative and even secondary disorders has made clinical diagnostic certainty even more challenging in the absence of specific and readily-available markers...
August 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28811341/the-u-s-culture-collection-network-responding-to-the-requirements-of-the-nagoya-protocol-on-access-and-benefit-sharing
#4
REVIEW
Kevin McCluskey, Katharine B Barker, Hazel A Barton, Kyria Boundy-Mills, Daniel R Brown, Jonathan A Coddington, Kevin Cook, Philippe Desmeth, David Geiser, Jessie A Glaeser, Stephanie Greene, Seogchan Kang, Michael W Lomas, Ulrich Melcher, Scott E Miller, David R Nobles, Kristina J Owens, Jerome H Reichman, Manuela da Silva, John Wertz, Cale Whitworth, David Smith
The U.S. Culture Collection Network held a meeting to share information about how culture collections are responding to the requirements of the recently enacted Nagoya Protocol on Access to Genetic Resources and the Fair and Equitable Sharing of Benefits Arising from their Utilization to the Convention on Biological Diversity (CBD). The meeting included representatives of many culture collections and other biological collections, the U.S. Department of State, U.S. Department of Agriculture, Secretariat of the CBD, interested scientific societies, and collection groups, including Scientific Collections International and the Global Genome Biodiversity Network...
August 15, 2017: MBio
https://www.readbyqxmd.com/read/28807673/gpr55-a-therapeutic-target-for-parkinson-s-disease
#5
Marta Celorrio, Estefanía Rojo-Bustamante, Diana Fernández-Suárez, Elena Sáez, Ander Estella-Hermoso de Mendoza, Christa E Müller, María J Ramírez, Julen Oyarzábal, Rafael Franco, María S Aymerich
The GPR55 receptor is expressed abundantly in the brain, especially in the striatum, suggesting it might fulfill a role in motor function. Indeed, motor behavior is impaired in mice lacking GPR55, which also display dampened inflammatory responses. Abnormal-cannabidiol (Abn-CBD), a synthetic cannabidiol (CBD) isomer, is a GPR55 agonist that may serve as a therapeutic agent in the treatment of inflammatory diseases. In this study, we explored whether modulating GPR55 could also represent a therapeutic approach for the treatment of Parkinson's disease (PD)...
August 11, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28805573/nonmotor-features-in-atypical-parkinsonism
#6
Kailash P Bhatia, Maria Stamelou
Atypical parkinsonism (AP) comprises mainly multiple system atrophy (MSA), progressive supranuclear palsy (PSP), and corticobasal degeneration (CBD), which are distinct pathological entities, presenting with a wide phenotypic spectrum. The classic syndromes are now called MSA-parkinsonism (MSA-P), MSA-cerebellar type (MSA-C), Richardson's syndrome, and corticobasal syndrome. Nonmotor features in AP have been recognized almost since the initial description of these disorders; however, research has been limited...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28803444/atypical-parkinsonian-syndromes-a-general-neurologist-s-perspective
#7
REVIEW
Angela B Deutschländer, Owen A Ross, Dennis W Dickson, Zbigniew K Wszolek
The differential diagnosis of atypical parkinsonian syndromes is challenging. These severe and often rapidly progressive neurodegenerative disorders are clinically heterogeneous and show significant phenotypic overlap. Here we review clinical, imaging, neuropathologic and genetic features of multiple system atrophy (MSA), progressive supranuclear palsy (PSP), corticobasal degeneration (CBD), and frontotemporal lobar degeneration (FTLD). The terms CBD and FTLD refer to pathologically confirmed cases of corticobasal syndrome (CBS) and frontotemporal dementia (FTD)...
August 12, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28801205/recombinant-laminin-fragments-endowed-with-collagen-binding-activity-a-tool-for-conferring-laminin-like-cell-adhesive-activity-to-collagen-matrices
#8
Ryoko Sato-Nishiuchi, Shaoliang Li, Fumi Ebisu, Kiyotoshi Sekiguchi
Laminins are major components of basement membranes that sustain a wide variety of stem cells. Among 15 laminin isoforms, laminin-511 and its E8 fragment (LM511E8) have been shown to strongly promote the adhesion and proliferation of human pluripotent stem cells. The aim of this study was to endow the cell-adhesive activity of laminin-511 on collagen matrices, thereby fabricating collagen-based culture scaffolds for stem cells with defined composition. To achieve this goal, we utilized the collagen-binding domain (CBD) of fibronectin to immobilize LM511E8 on collagen matrices...
August 8, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/28800818/characterization-of-a-novel-endolysin-lyssa11-and-its-utility-as-a-potent-biocontrol-agent-against-staphylococcus-aureus-on-food-and-utensils
#9
Yoonjee Chang, Minsik Kim, Sangryeol Ryu
Here we show that the LysSA11 endolysin, derived from the virulent Staphylococcus aureus phage SA11, has lytic activity against staphylococcal strains. Bioinformatics analysis revealed an enzymatically active CHAP (cysteine, histidine-dependent amidohydrolases/peptidases) domain at the N-terminus of LysSA11 that showed amidase activity. A novel cell wall binding domain (CBD) in the C-terminus could bind to a broad spectrum of staphylococcal cells. The bactericidal activity of LysSA11 was determined in food and utensils artificially contaminated with methicillin-resistant S...
December 2017: Food Microbiology
https://www.readbyqxmd.com/read/28799510/safety-profile-of-the-newest-antiepileptic-drugs-a-curated-literature-review
#10
Caterina Palleria, Giuseppe Cozza, Rajeshree Khengar, Vincenzo Libri, Giovambattista De Sarro
BACKGROUND: Despite the introduction of new antiepileptic drugs (AEDs), the quality of life and therapeutic response for patients with epilepsy remain unsatisfactory. In addition, whilst several antiepileptic drugs (AEDs) have been approved and consequently marketed in recent years, little is known about their long-term safety and tolerability. Availability of the newest AEDs, characterized by improved pharmacokinetic profiles, has positively impacted the treatment approach for patients with partial seizures in clinical practice...
August 9, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28798923/feasibility-of-initial-endoscopic-common-bile-duct-stone-removal-in-patients-with-acute-cholangitis
#11
Akira Yamamiya, Katsuya Kitamura, Yu Ishii, Yuta Mitsui, Tomohiro Nomoto, Hitoshi Yoshida
AIM: To investigate the feasibility of initial endoscopic common bile duct (CBD) stone removal in patients with acute cholangitis (AC). METHODS: A single-center, retrospective study was conducted between April 2013 and December 2014 and was approved by the Medical Ethics Committee at our institution. Written informed consent was obtained from each patient prior to the procedure. The cohort comprised 31 AC patients with CBD stones who underwent endoscopic biliary drainage (EBD) for naïve papilla within 48 h after AC onset...
July 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/28782663/respiratory-rhythm-irregularity-after-carotid-body-denervation-in-rats
#12
Shahriar Sheikhbahaei, Alexander V Gourine, Jeffrey C Smith
Respiratory activity is controlled by inputs from the peripheral and central chemoreceptors. Since overactivity of the carotid bodies, the main peripheral chemoreceptors, is linked to the pathophysiology of disparate metabolic and cardiovascular diseases, carotid body denervation (CBD) has been proposed as a potential treatment. However, long-term effects of CBD on the respiratory rhythm and regularity of breathing remain unknown. Here, we show that five weeks after bilateral CBD in rats, the respiratory rhythm was slower and less regular...
August 3, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28782097/interactions-between-cannabidiol-and-commonly-used-antiepileptic-drugs
#13
Tyler E Gaston, E Martina Bebin, Gary R Cutter, Yuliang Liu, Jerzy P Szaflarski
OBJECTIVE: To identify potential pharmacokinetic interactions between the pharmaceutical formulation of cannabidiol (CBD; Epidiolex) and the commonly used antiepileptic drugs (AEDs) through an open-label safety study. Serum levels were monitored to identify interactions between CBD and AEDs. METHODS: In 39 adults and 42 children, CBD dose was started at 5 mg/kg/day and increased every 2 weeks by 5 mg/kg/day up to a maximum of 50 mg/kg/day. Serum AED levels were obtained at baseline prior to CBD initiation and at most study visits...
August 6, 2017: Epilepsia
https://www.readbyqxmd.com/read/28781893/routine-cysticotomy-and-flushing-of-the-cystic-duct-in-patients-with-low-risk-of-common-duct-stones-can-it-be-beneficial
#14
Piera Leon, Fabiola Giudici, Antonio Sciuto, Francesco Corcione
BACKGROUND: Gallstone disease affects 15-20% of the general population and up to 20% of these patients present common bile duct stones. AIM: This observational study reports our experience on routine cysticotomy and flushing of the cystic duct in patients with low risk of common duct stones. MATERIALS AND METHODS: We analyzed 731 patients who underwent laparoscopic cholecystectomy between September 2013 and September 2015. RESULTS: Patients were preoperatively stratified on the clinical risk; those presenting with low preoperative risk of common bile duct stones were referred to undergo laparoscopic cholecystectomy and routine cysticotomy with bile duct flushing...
2017: Minimally Invasive Surgery
https://www.readbyqxmd.com/read/28772718/the-relationship-between-the-mechanism-of-zinc-oxide-crystallization-and-its-antimicrobial-properties-for-the-surface-modification-of-surgical-meshes
#15
Marta Fiedot, Irena Maliszewska, Olga Rac-Rumijowska, Patrycja Suchorska-Woźniak, Agnieszka Lewińska, Helena Teterycz
Surgical meshes were modified with zinc oxide (ZnO) using a chemical bath deposition method (CBD) at 50 °C, 70 °C, or 90 °C, in order to biologically activate them. Scanning electron microscopy (SEM), mass changes, and X-ray diffraction measurements revealed that at low temperatures Zn(OH)₂ was formed, and that this was converted into ZnO with a temperature increase. The antimicrobial activity without light stimulation of the ZnO modified Mersilene™ meshes was related to the species of microorganism, the incubation time, and the conditions of the experiment...
March 28, 2017: Materials
https://www.readbyqxmd.com/read/28763814/three-modalities-on-common-bile-duct-exploration
#16
Yong Zhou, Xu-Dong Wu, Wen-Zhang Zha, Ren-Gen Fan, Biao Zhang, Yong-Hua Xu, Cheng-Lin Qin, Jing Jia
Background Choledocholithiasis can be managed by transcystic (TC) and transduct (TD) stone extraction or using cholangioscopy through the left hepatic duct orifice (LHD). Objective The aim of this study is to evaluate the safety and effectiveness of common bile duct exploration through the TC approach, TD approach, and LHD approach for choledocholithiasis, with a specific emphasis on the TC and LHD approaches versus the TD approach. Methods Between January 2011 and June 2014, a total of 172 choledocholithiasis patients accompanied by cholecystitis and/or left intrahepatic gallstones were scheduled for laparoscopic or open common bile duct (CBD) exploration using cholangioscopy through the CBD (TD group: n = 72), cystic duct (TC group: n = 63), or LHD orifice (LHD group: n = 37)...
August 1, 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28761877/basic-fibroblast-growth-factor-anchored-multilayered-mesenchymal-cell-sheets-accelerate-periosteal-bone-formation
#17
Kentaro Uchida, Gen Inoue, Osamu Matsushita, Kyosuke Horikawa, Hiroyuki Sekiguchi, Wataru Saito, Shotaro Takano, Hisako Fujimaki, Masayuki Miyagi, Masashi Takaso
Cell-based regenerative therapy has the potential to repair bone injuries or large defects that are recalcitrant to conventional treatment methods, including drugs and surgery. Here, we developed a multilayered cell-based bone formation system using cells coated with fibronectin-gelatin (FN-G) nanofilms. The multilayered mesenchymal cells (MLMCs) were formed after two days of culture and were shown to express higher levels of BMP-2 and VEGF compared to monolayer cultures of MCs. The MLMCs were used as a graft material in combination with a fusion protein consisting of basic fibroblast growth factor (bFGF), polycystic kidney disease (PKD) domain, and the collagen-binding domain (CBD) of Clostridium histolyticum collagenase...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28758036/successful-endoscopic-treatment-of-bouveret-syndrome-in-a-patient-with-choledochoduodenal-fistula-complicating-duodenal-ulcer
#18
Syed Hasan, Zubair Khan, Umar Darr, Toseef Javaid, Nauman Siddiqui, Jamal Saleh, Abdallah Kobeissy, Ali Nawras
INTRODUCTION: Cholecystoduodenal fistulas represent the most common type of bilioenteric fistulas while choledochoduodenal fistulas account for only 1-25% of cases. Bilioenteric fistula cases are associated with cholelithiasis and are rarely associated with duodenal peptic ulcers. Here we present the first case of Bouveret syndrome secondary to choledochoduodenal fistula complicating peptic duodenal ulcer managed successfully via endoscopic mechanical lithotripsy. CASE: 86-year-old male with a medical history significant for coronary artery disease and stage 3 colorectal cancer status after resection and chemoradiation presented with intractable sharp abdominal pain worse postprandially for one week in duration, associated with early satiety, anorexia, and 5 lbs weight loss in one week...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28756105/comparative-efficacy-of-various-endoscopic-techniques-for-the-treatment-of-common-bile-duct-stones-a-network-meta-analysis
#19
REVIEW
Chan Hyuk Park, Jang Han Jung, Eunwoo Nam, Eun Hye Kim, Mi Gang Kim, Jae Hyun Kim, Se Woo Park
BACKGROUND AND AIMS: Although various endoscopic techniques have been introduced for successful removal of common bile duct (CBD) stones, the optimal method is not yet clear. We aimed to compare the efficacy of different endoscopic techniques for CBD stone removal. METHODS: We searched for all relevant randomized controlled trials published until June 2017, examining the outcomes of endoscopic techniques for CBD stone removal, including endoscopic sphincterotomy (EST), endoscopic papillary balloon dilatation (EPBD), and endoscopic sphincterotomy with balloon dilatation (ESBD)...
July 26, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28754373/cannabidiol-disrupts-the-consolidation-of-specific-and-generalized-fear-memories-via-dorsal-hippocampus-cb1-and-cb2-receptors
#20
Cristina A J Stern, Thiago R da Silva, Ana M Raymundi, Camila P de Souza, Vinicius A Hiroaki-Sato, Luiza Kato, Francisco S Guimarães, Roberto Andreatini, Reinaldo N Takahashi, Leandro J Bertoglio
Pharmacological interventions able to modulate a fear memory while it is consolidated could have therapeutic value in tempering those maladaptively overconsolidated. Animal and human studies have shown the intensity of unconditioned stimulus delivered during fear conditioning influences qualitative and quantitative aspects of the memory to be established. By varying the shock intensity used for contextual pairing in rats, here we induced specific and more generalized long-term fear memories to investigate whether, how and where in the brain the cannabidiol (CBD; 3...
July 25, 2017: Neuropharmacology
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