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https://www.readbyqxmd.com/read/28718026/solid-phase-extraction-of-multi-class-pharmaceuticals-from-environmental-water-samples-onto-modified-multi-walled-carbon-nanotubes-followed-by-lc-ms-ms
#1
Bojana Lalović, Tatjana Đurkić, Marija Vukčević, Ivona Janković-Častvan, Ana Kalijadis, Zoran Laušević, Mila Laušević
In this paper, pristine and chemically treated multi-walled carbon nanotubes (MWCNTs) were employed as solid-phase extraction sorbents for the isolation and enrichment of multi-class pharmaceuticals from the surface water and groundwater, prior to liquid chromatography-tandem mass spectrometry analysis. Thirteen pharmaceuticals that belong to different therapeutical classes (erythromycin, azithromycin, sulfamethoxazole, diazepam, lorazepam, carbamazepine, metoprolol, bisoprolol, enalapril, cilazapril, simvastatin, clopidogrel, diclofenac) and two metabolites of metamizole (4-acetylaminoantipyrine and 4-formylaminoantipyrine) were selected for this study...
July 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28717330/an-experimental-evaluation-of-adaptogenic-potential-of-standardized-epipremnum-aureum-leaf-extract
#2
Sreemoy Kanti Das, Pinaki Sengupta, Mohd Shahimi Mustapha, Md Moklesur Rahman Sarker
BACKGROUND: Stress is a normal part of everyday life but chronic stress can lead to a variety of stress-related illnesses including hypertension, anxiety, and depression. In the present investigation, standardized leaf extract of Epipremnumaureum was evaluated for its anti-stress potential. MATERIALS AND METHODS: For the evaluation of anti-stress activity, groups of mice (n = 6) were subjected to forced swim stress and anoxic stress tolerance test in mice 1h after daily treatment of E...
April 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/28715875/acute-orexigenic-effect-of-agmatine-involves-interaction-between-central-%C3%AE-2-adrenergic-and-gabaergic-receptors
#3
Brijesh Gulabrao Taksande, Omi Sharma, Manish Manohar Aglawe, Mayur Bhimrao Kale, Dinesh Yugraj Gawande, Milind Janraoji Umekar, Nandkishor Ramdas Kotagale
Agmatine and GABA have been abundantly expressed in brain nuclei involved in regulation of energy homeostasis and promoting stimulation of food intake in rodents. However, their mutual interaction, if any, in the elicitation of feeding behavior is largely remains unclear. The current study provides experimental evidence for the possible interaction of agmatine, adrenergic and GABAergic systems in stimulation of feeding in satiated rats. Satiated rats fitted with intracerebroventricular (i.c.v.) cannulae and were administered agmatine, alone or jointly with (a) GABAA receptor agonist, muscimol, diazepam or antagonist bicuculline and flumazenil, GABAA positive modulator, allopregnanolone or negative modulator of GABAA receptor, dehydroepiandrosterone (b) In view of the high affinity of agmatine for α2-adrenoceptors and the close association between α2-adrenoceptors and GABAergic system, the effect of their modulators on feeding elicited by agmatine/GABAergic agonists were also examined...
July 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28714383/novel-mannich-bases-as-potential-anticonvulsants-syntheses-characterization-and-biological-evaluation
#4
Amit Kumar Keshari, Aseem Tewari, Shweta Singh Verma, Shailendra K Saraf
BACKGROUND: Mannich bases are known to be an important pharmacophore or bioactive leads in the synthesis of various potential agents that have a variety of therapeutic activities like anticancer, antipsychotic, anticonvulsant, antimalarial, anti-inflammatory, antibacterial and so forth. Thus, in the present research, conjugation of moieties like 1,5-benzoxazepines and 1,5-benzothiazepines with secondary amines like piperazine, methyl piperazine and morpholine was carried out in a Mannich base with an anticipation of good anticonvulsant activity...
July 17, 2017: Central Nervous System Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28704273/anxiety-does-not-contribute-to-social-withdrawal-in-the-subchronic-phencyclidine-rat-model-of-schizophrenia
#5
Alexandre Seillier, Andrea Giuffrida
Social withdrawal should not be considered a direct measure of the negative symptoms of schizophrenia as it may result not only from asociality (primary negative symptom) but also from other altered processes such as anxiety. To understand the contribution of these two factors to social deficit, we investigated whether the social withdrawal observed in the subchronic phencyclidine (PCP) rat model of schizophrenia could be attributed to increased anxiety. Compared to saline controls, PCP-treated rats (5 mg/kg, twice daily for 7 days, followed by a washout period) spent significantly less time in social interaction, but did not show anxiety-like behaviors in different relevant behavioral paradigms...
July 12, 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/28699845/development-and-implementation-of-an-alcohol-withdrawal-protocol-using-a-5-item-brief-alcohol-withdrawal-scale-baws
#6
Darius A Rastegar, Dinah Applewhite, Anika A H Alvanzo, Christopher Welsh, Timothy Niessen, Edward S Chen
BACKGROUND: The standard of care for management of alcohol withdrawal is symptom-triggered treatment using the Clinical Institute Withdrawal Assessment for Alcohol (CIWA-Ar) scale. Many items of this 10-question scale rely on subjective assessments of withdrawal symptoms, making it time-consuming and cumbersome to use. Therefore, there is interest in shorter and more objective methods to assess alcohol withdrawal symptoms. METHODS: We initially piloted a 6-item withdrawal scale developed at another institution...
July 12, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28698967/endogenous-expression-of-odn-related-peptides-in-astrocytes-contributes-to-cell-protection-against-oxidative-stress-astrocyte-neuron-crosstalk-relevance-for-neuronal-survival
#7
Ikram Ghouili, Seyma Bahdoudi, Fabrice Morin, Fatma Amri, Yosra Hamdi, Pierre Michael Coly, Marie-Laure Walet-Balieu, Jérôme Leprince, Sami Zekri, Hubert Vaudry, David Vaudry, Hélène Castel, Mohamed Amri, Marie-Christine Tonon, Olfa Masmoudi-Kouki
Astroglial cells are important actors in the defense of brain against oxidative stress injuries. Glial cells synthesize and release the octadecaneuropeptide ODN, a diazepam-binding inhibitor (DBI)-related peptide, which acts through its metabotropic receptor to protect neurons and astrocytes from oxidative stress-induced apoptosis. The purpose of the present study is to examine the contribution of the endogenous ODN in the protection of astrocytes and neurons from moderate oxidative stress. The administration of H2O2 (50 μM, 6 h) induced a moderate oxidative stress in cultured astrocytes, i...
July 11, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28693492/barriers-to-publishing-in-biomedical-journals-perceived-by-a-sample-of-french-researchers-results-of-the-diazepam-study
#8
Martin Duracinsky, Christophe Lalanne, Laurence Rous, Aichata Fofana Dara, Lesya Baudoin, Claire Pellet, Alexandre Descamps, Fabienne Péretz, Olivier Chassany
BACKGROUND: As publishing is essential but competitive for researchers, difficulties in writing and submitting medical articles to biomedical journals are disabling. The DIAzePAM (Difficultés des Auteurs à la Publication d'Articles Médicaux) survey aimed to assess the difficulties experienced by researchers in the AP-HP (Assistance Publique - Hôpitaux de Paris, i.e., Paris Hospitals Board, France), the largest public health institution in Europe, when preparing articles for biomedical journals...
July 10, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28691148/entomotoxicology-in-burnt-bodies-a-case-of-maternal-filicide-suicide-by-fire
#9
V Bugelli, L Papi, S Fornaro, F Stefanelli, S Chericoni, M Giusiani, S Vanin, C P Campobasso
One of the most common methods of maternal filicide is by fire. In this case study, a 40-year-old female and her children were found completely burned in a burnt out car. All bodies showed a degree of destruction by fire consisting to a level 3 of the Crow-Glassman Scale (CGS) and early stage of insect activity. Toxicological analyses were performed on soft tissues and body fluids still available. The results were positive for diazepam and its metabolites only for children with blood concentrations consistent with therapeutic doses of benzodiazepines...
July 9, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28690255/rapid-detection-of-diazepam-injection-based-on-surface-enhanced-raman-spectroscopy
#10
Si-Qin-Gao-Wa Han, Lin Bao, Mei-Ling Zhang, Xiang Lin, Wu-Li-Ji Hasi
Diazepam injection was detected based on a droplet surface enhanced Raman spectroscopy (SERS) platform, which overcomes the disadvantages of the poor uniformity and time-consuming sample treatment process of the conventional "drop and dry" detection strategy. The Raman peak positions of diazepam injection were determined and identified, they are mainly located in the 689, 1002, 1170 and 1598 cm(-1), etc. Different concentrations of diazepam injection were detected. It was found that the intensity of 1002 cm(-1) increases linearly with concentration in the range from 0...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28687902/decreased-brain-serotonin-turnover-rate-following-administration-of-sharbat-e-ahmed-shah-produces-antidepressant-and-anxiolytic-effect-in-rats
#11
Muhammad Ahmed, Aisha Azmat
Sharbat-e-Ahmed Shah (SAS) has usually been used in Traditional Unani Medicine (TUM) for depression and insomnia but still not evaluated for its anti-depressant and Neuropharmacological activity. In the present study, a Human dose of SAS (0.6 ml/kg/d) was administered orally to the rats for 15 consecutive days. Antidepressant and anxiolytic were screened scientifically in rats by using Forced swim test and light and dark box test. At the end of study high-performance liquid chromatographic (HPLC) method with electrochemical (EC) detector was used for the measurement of blood and brain tryptophan and brain serotonin levels...
July 7, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28687518/neural-inhibition-can-explain-negative-bold-responses-a-mechanistic-modelling-and-fmri-study
#12
S Sten, K Lundengård, S T Witt, G Cedersund, F Elinder, M Engström
Functional magnetic resonance imaging (fMRI) of hemodynamic changes captured in the blood oxygen level-dependent (BOLD) response contains information of brain activity. The BOLD response is the result of a complex neurovascular coupling and comes in at least two fundamentally different forms: a positive and a negative deflection. Because of the complexity of the signaling, mathematical modelling can provide vital help in the data analysis. For the positive BOLD response, there are plenty of mathematical models, both physiological and phenomenological...
July 4, 2017: NeuroImage
https://www.readbyqxmd.com/read/28687474/alfaxalone-for-maintenance-of-anaesthesia-in-ponies-undergoing-field-castration-continuous-infusion-compared-with-intravenous-boluses
#13
Julia Deutsch, Abel Ekiri, Annemarie de Vries
OBJECTIVE: To compare alfaxalone as continuous intravenous (IV) infusion with intermittent IV injections for maintenance of anaesthesia in ponies undergoing castration. STUDY DESIGN: Prospective, randomized, 'blinded' clinical study. ANIMALS: A group of 33 entire male Welsh ponies undergoing field castration. METHODS: After preanaesthetic medication with IV detomidine (10 μg kg(-1)) and butorphanol (0.05 mg kg(-1)), anaesthesia was induced with IV diazepam (0...
April 14, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28676733/evaluation-of-paracervical-block-and-iv-sedation-for-pain-management-during-hysteroscopic-polypectomy-a-randomized-clinical-trial
#14
Zahra Asgari, Maryam Razavi, Reihaneh Hosseini, Masoumeh Nataj, Mahroo Rezaeinejad, Mahdi Sepidarkish
BACKGROUND: The aim of this study was to compare the effectiveness of paracervical block (PB) and IV sedation (IVS) on women's pain perception during operative hysteroscopy. METHODS: A total of 84 patients with uterine polyps were randomized to either PB or IV sedation or general anesthesia (GA) as control group. In PB group, the patients received oral diazepam 10 mg and 100 mg diclofenac Na suppository 60 min before surgery and 10 cc of 2% buffered lidocaine was injected at cervix...
2017: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/28676250/trends-in-antiepileptic-drug-use-in-children-and-adolescents-with-epilepsy
#15
Xinyue Liu, Paul R Carney, Regina Bussing, Richard Segal, Linda B Cottler, Almut G Winterstein
OBJECTIVE: We describe the trends in antiepileptic drug (AED) use in children and adolescents with epilepsy in the United States. METHODS: We undertook a cross-sectional study based on Medicaid Analytic eXtract data set from 26 US states. Children and adolescents aged three to 18 years with at least one year continuous Medicaid fee-for-service coverage after the second outpatient or the first inpatient diagnosis of epilepsy in each calendar year during 1999 to 2009 were included in the study; therefore, 11 cohorts were established...
May 29, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28673548/inhibition-of-the-endocannabinoid-regulating-enzyme-monoacylglycerol-lipase-elicits-a-cb1-receptor-mediated-discriminative-stimulus-in-mice
#16
Robert A Owens, Mohammed A Mustafa, Bogna M Ignatowska-Jankowska, M Imad Damaj, Patrick M Beardsley, Jenny L Wiley, Micah J Niphakis, Benjamin F Cravatt, Aron H Lichtman
Substantial challenges exist for investigating the cannabinoid receptor type 1 (CB1)-mediated discriminative stimulus effects of the endocannabinoids, 2-arachidonoylglycerol (2-AG) and N-arachidonoylethanolamine (anandamide; AEA), compared with exogenous CB1 receptor agonists, such as Δ(9)-tetrahydrocannabinol (THC) and the synthetic cannabinoid CP55,940. Specifically, each is rapidly degraded by the respective hydrolytic enzymes, monoacylglycerol lipase (MAGL) and fatty acid amide hydrolase (FAAH). Whereas MAGL inhibitors partially substitute for THC and fully substitute for CP55,940, FAAH inhibitors do not substitute for either drug...
June 30, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28672410/-prescription-of-benzodiazepines-and-z-drugs-by-german-general-practitioners-a-cross-sectional-study
#17
Dirk Moßhammer, Hannah Haumann, Rainer Muche, David Scheub, Stefanie Joos, Gunter Laux
Background Due to their addictive potential, benzodiazepine (BZ) and non-benzodiazepine-agonists (NBZ, so-called Z-drugs) should be taken no longer than 6 weeks. BZ and NBZ are primarily prescribed by general practitioners (GPs). Therefore, we aimed to analyze GPs' data on the patients collective, the amount of BZ/NBZ prescribed and the rate of private prescriptions. Methods We analyzed person years of 2-year intervals from 2009 to 2014 of the primary care CONTENT register that contains routine data from 31 general practitioners' practices...
July 3, 2017: Das Gesundheitswesen
https://www.readbyqxmd.com/read/28666848/a-randomized-cross-over-study-of-the-effects-of-lidocaine-on-motor-and-sensory-evoked-potentials-during-spinal-surgery
#18
Michael K Urban, Kara Fields, Sean W Donegan, Jonathan C Beathe, David W Pinter, Oheneba Boachie-Adjei, Ronald G Emerson
BACKGROUND CONTEXT: Lidocaine has emerged as a useful adjuvant anesthetic agent for cases requiring intraoperative monitoring of motor evoked potentials (MEPs) and somatosensory evoked potentials (SSEPs). A previous retrospective study suggested that lidocaine could be used as a component of propofol-based intravenous anesthesia without adversely affecting MEP or SSEP monitoring, but did not address the effect of addition of lidocaine on the MEP and SSEP signals of individual patients...
June 27, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28666152/pharmacodynamic-and-pharmacokinetic-interactions-between-simvastatin-and-diazepam-in-rats
#19
Wojciech Słupski, Małgorzata Trocha, Maria Rutkowska
BACKGROUND: Statins and benzodiazepines are widely used drugs, especially in ischemic heart disease, where exacerbation caused by anxiety can even lead to cardiac death. There have not been any reports of statin drug interaction with anxiolytics so far, but it is possible that these drugs interact with each other. We examined the effect of chronic oral administration of simvastatin on the anxiolytic activity and pharmacokinetics of diazepam in rats. METHODS: Studies were conducted on male Wistar Han rats treated with simvastatin (2...
March 18, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28664354/impact-of-medicine-withdrawal-on-reporting-of-adverse-events-involving-therapeutic-alternatives-a-study-from-the-french-spontaneous-reporting-database
#20
Cécile Pageot, Julien Bezin, Andy Smith, Mickael Arnaud, Francesco Salvo, Françoise Haramburu, Bernard Bégaud, Antoine Pariente
INTRODUCTION: The consequences of the withdrawal of marketing authorisation of drugs have mostly been studied considering drug prescription patterns for the therapeutic alternatives of the withdrawn drugs. The potential concomitant changes in the reporting of adverse reactions concerning these alternatives have been studied less often. OBJECTIVE: The objective of this study was to analyse the changes in the reporting of adverse events (AEs) for therapeutic alternatives after the withdrawal of three medicines (dextropropoxyphene, pioglitazone and tetrazepam) from the market for safety reasons...
June 29, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
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