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Ketamine drug dependence

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https://www.readbyqxmd.com/read/29020410/the-requirement-of-l-type-voltage-dependent-calcium-channel-l-vdcc-in-the-rapid-acting-antidepressant-like-effects-of-scopolamine-in-mice
#1
Hanjie Yu, Mengmeng Li, Xinbei Shen, Dan Lv, Xin Sun, Jinting Wang, Xinmei Gu, Jingning Hu, Chuang Wang
Background: Previous studies have shown that a low dose of scopolamine produces rapid-acting antidepressant-like actions in rodents. Understanding the mechanisms underlying this effect and the dose-dependent variations of drug responses remains an important task. L-type voltage-dependent calcium channels (L-VDCC) were found to mediate rapid-acting antidepressant effects of certain medications (e.g., ketamine). Therefore, it is of great interest to determine the involvement of L-VDCC in the action of scopolamine...
August 25, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28988615/mechanism-of-synergistic-action-on-behavior-oxidative-stress-and-inflammation-following-co-treatment-with-ketamine-and-different-antidepressant-classes
#2
Gislaine Z Réus, Beatriz I Matias, Amanda L Maciel, Helena M Abelaira, Zuleide M Ignácio, Airam B de Moura, Danyela Matos, Lucineia G Danielski, Fabricia Petronilho, André F Carvalho, João Quevedo
BACKGROUND: Major depressive disorder (MDD) affects many people in the world. However, around 40% of patients do not respond to any pharmacological drugs. An alternative is to use a combination of different pharmacological groups or the combination of a classical antidepressant with a substance that can potentiate its effect. Thus, this study aimed to investigate the synergistic interactions between different antidepressants, including fluoxetine, quetiapine and lamotrigine in combination with ketamine, a N-methyl-d-aspartate (NMDA) receptor antagonist...
May 6, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28958905/-uro-and-nephrotoxic-effects-of-drugs-of-abuse-literature-review-and-pharmaco-epidemiological-survey-in-france-and-in-the-marseille-area
#3
Marion Gully, Élisabeth Frauger, Michel Spadari, Liselotte Pochard, Vanessa Pauly, Fanny Romain, Bertrand Gondouin, Marion Sallée, Julie Moussi-Frances, Stéphane Burtey, Bertrand Dussol, Laurent Daniel, Joëlle Micallef, Noémie Jourde-Chiche
A great diversification of drugs of abuse has been observed in recent years, both in the populations using them and in the types of drugs. Although dependency and psychiatric disorders associated with the abuse of these substances is well known, somatic complications, uro-nephrotoxicity in particular, are less recognized. We propose here an overview of the products used by drugs abusers in France, through the analysis of the national pharmaco-epidemiological study Observation des produits psychotropes illicites ou détournés de leur utilisation médicamenteuse (OPPIDUM)...
September 25, 2017: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/28954811/preclinical-characterization-of-r-3-3s-4s-3-fluoro-4-4-hydroxyphenyl-piperidin-1-yl-1-4-methylbenzyl-pyrrolidin-2-one-bms-986169-a-novel-intravenous-glutamate-n-methyl-d-aspartate-2b-glun2b-receptor-negative-allosteric-modulator-with-potential-in-major-depressive
#4
Linda J Bristow, Jyoti Gulia, Michael R Weed, Bettadapura N Srikumar, Yu-Wen Li, John D Graef, Pattipati S Naidu, Charulatha Sanmathi, Jayant Aher, Tanmaya Bastia, Mahesh Paschapur, Narasimharaju Kalidindi, Kuchibholta Vijaya Kumar, Thaddeus Molski, Rick Pieschl, Alda Fernandes, Jeffrey M Brown, Digavalli V Sivarao, Kimberly Newberry, Mark Bookbinder, Joseph Polino, Deborah Keavy, Amy Newton, Eric Shields, Jean Simmermacher, James Kempson, Jianqing Li, Huiping Zhang, Arvind Mathur, Raja Reddy Kallem, Meenakshee Sinha, Manjunath Ramarao, Reeba K Vikramadithyan, Srinivasan Thangathirupathy, Jayakumar Warrier, Joanne J Bronson, Richard E Olson, John E Macor, Charlie F Albright, Dalton King, Lorin A Thompson, Lawrence R Marcin, Michael Sinz
(R)-3-((3S,4S)-3-fluoro-4-(4-hydroxyphenyl)piperidin-1-yl)-1-(4-methylbenzyl)pyrrolidin-2-one (BMS-986169), and the phosphate prodrug (BMS-986163), were identified from a drug discovery effort focused on the development of novel, intravenous, glutamate N-methyl-D-aspartate 2B receptor (GluN2B) negative allosteric modulators for treatment resistant depression (TRD). BMS-986169 showed high binding affinity for the GluN2B subunit allosteric modulatory site (Ki = 4.03-6.3 nM) and selectively inhibited GluN2B receptor function in Xenopus oocytes expressing human N-methyl-D-aspartate receptor subtypes (IC50 = 24...
September 27, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28947331/ketamine-and-aminoguanidine-differentially-affect-bdnf-and-mtor-gene-expression-in-the-prefrontal-cortex-of-adult-male-rats
#5
Vitor Silva Pereira, Betina Elfving, Sâmia R L Joca, Gregers Wegener
The rapid and sustained antidepressant properties of ketamine provide evidence of the importance of the glutamatergic system in the neurobiology of depression. The antidepressant-like effects of ketamine are dependent on brain-derived neurotrophic factor (BDNF) and mammalian target of rapamycin (mTOR) in limbic brain areas. The nitrergic system is closely related to the glutamatergic system and generates antidepressant-like effects when blocked. The aim of this study was to investigate whether the behavioural effects induced by the inhibition of nitric oxide (NO) synthesis by aminoguanidine or N-methyl-D-aspartate (NMDA) receptor blockade by ketamine would affect the gene expression of Bdnf and Mtor in the ventromedial prefrontal cortex in rats...
September 22, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28939975/ketamine-induced-glutamatergic-mechanisms-of-sleep-and-wakefulness-insights-for-developing-novel-treatments-for-disturbed-sleep-and-mood
#6
Wallace C Duncan, Elizabeth D Ballard, Carlos A Zarate
Ketamine, a drug with rapid antidepressant effects and well-described effects on slow wave sleep (SWS), is a useful intervention for investigating sleep-wake mechanisms involved in novel therapeutics. The drug rapidly (within minutes to hours) reduces depressive symptoms in individuals with major depressive disorder (MDD) or bipolar disorder (BD), including those with treatment-resistant depression. Ketamine treatment elevates extracellular glutamate in the prefrontal cortex. Glutamate, in turn, plays a critical role as a proximal element in a ketamine-initiated molecular cascade that increases synaptic strength and plasticity, which ultimately results in rapidly improved mood...
September 23, 2017: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/28934076/delayed-urinary-symptoms-induced-by-ketamine
#7
María Robles-Martínez, Alfonso C Abad, Violeta Pérez-Rodríguez, Elena Ros-Cucurull, Abderraman Esojo, Carlos Roncero
One of the side-effects of ketamine abuse is genito-urinary damage. This report describes a case of a former ketamine user who presented with urinary symptoms associated with ketamine years after stopping consumption. This was a 26-year-old male with a history of ketamine abuse. He started treatment for alcohol dependence at age 19. He smoked marijuana daily and denied any other drug use. During the follow-up, urinary symptoms were evidenced (dysuria, frequency, urgency, incontinence, nocturia, hematuria, and suprapubic pain)...
September 21, 2017: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/28877967/memantine-and-ketamine-differentially-alter-nmda-receptor-desensitization
#8
Nathan G Glasgow, Nadezhda V Povysheva, Andrea M Azofeifa, Jon W Johnson
Memantine and ketamine are clinically useful NMDA receptor (NMDAR) open channel blockers that inhibit NMDARs with similar potency and kinetics, but display vastly different clinical profiles. This discrepancy has been hypothesized to result from inhibition by memantine and ketamine of overlapping but distinct NMDAR subpopulations. For example, memantine but not ketamine may inhibit extrasynaptic NMDARs more effectively than synaptic NMDARs. However, the basis for preferential NMDAR inhibition depending on subcellular location has not been investigated systematically...
October 4, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28868303/adjuvants-to-local-anesthetics-current-understanding-and-future-trends
#9
EDITORIAL
Amlan Swain, Deb Sanjay Nag, Seelora Sahu, Devi Prasad Samaddar
Although beneficial in acute and chronic pain management, the use of local anaesthetics is limited by its duration of action and the dose dependent adverse effects on the cardiac and central nervous system. Adjuvants or additives are often used with local anaesthetics for its synergistic effect by prolonging the duration of sensory-motor block and limiting the cumulative dose requirement of local anaesthetics. The armamentarium of local anesthetic adjuvants have evolved over time from classical opioids to a wide array of drugs spanning several groups and varying mechanisms of action...
August 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/28814306/blood-acid-base-status-in-impala-aepyceros-melampus-immobilised-and-maintained-under-total-intravenous-anaesthesia-using-two-different-drug-protocols
#10
Gareth E Zeiler, Leith C R Meyer
BACKGROUND: In mammals, homeostasis and survival are dependent on effective trans-membrane movement of ions and enzyme function, which are labile to extreme acid-base changes, but operate efficiently within a narrow regulated pH range. Research in patients demonstrating a pH shifts outside the narrow regulated range decreased the cardiac output and systemic vascular resistance and altered the oxygen binding to haemoglobin. These cardiopulmonary observations may be applicable to the risks associated with anaesthesia and performance of wildlife ungulates on game farms...
August 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28807162/chinese-herbal-medicine-for-the-treatment-of-drug-addiction
#11
Weili Zhu, Yinan Zhang, Yingjie Huang, Lin Lu
This chapter summarizes recent developments in preclinical and clinical research on Chinese herbal medicines and their neurochemical mechanism of action for the treatment of drug addiction. We searched Chinese and English scientific literature and selected several kinds of Chinese herbal medicines that have beneficial effects on drug addiction. Ginseng (Renshen) may be clinically useful for the prevention of opioid abuse and dependence. Rhizoma Corydalis (Yanhusuo) may be used to prevent relapse to chronic drug dependence...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28760591/the-hairy-lizard-heterothermia-affects-anaesthetic-requirements-in-the-arabian-oryx-oryx-leucoryx
#12
Mads F Bertelsen, Osama Mohammed, Tobias Wang, Paul R Manger, David Michael Scantlebury, Khairi Ismael, Nigel C Bennett, Abdulaziz Alagaili
OBJECTIVE: To study the effect of heterothermia on anaesthetic drug requirements in semi-free ranging Arabian oryx and to assess the temperature quotient (Q10) of oxygen consumption. STUDY DESIGN: Prospective observational study and controlled metabolic experiment. ANIMALS: Sixty-eight anaesthetic events in 59 Arabian oryx from Mahazat As-Sayd protected area, Saudi Arabia METHODS: Anaesthesia was induced by remote injection of 25 mg ketamine, 10 mg midazolam and 0...
March 6, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28737446/quantitative-in-vitro-phenotyping-and-prediction-of-drug-interaction-potential-of-cyp2b6-substrates-as-victims
#13
Raghava Choudary Palacharla, Ramakrishna Nirogi, Venkatesham Uthukam, Arunkumar Manoharan, Ranjith Kumar Ponnamaneni, Ilayaraja Kalaikadhiban
1. Determination of fm, CYP for a compound is critical to assess the potential risk of a drug candidate as a victim of DDI. Several compounds are identified as CYP2B6 substrates but the fm, CYP2B6 values are not determined quantitatively 2. Two methods of reaction phenotyping, the chemical inhibition method, and metabolism in rCYP enzymes, were used to determine the relative contributions of the enzymes. Chemical inhibition method was also conducted in the presence of BSA (0.5% w/v) 3. The results confirm with the earlier studies concerning the identity of the CYP2B6 enzyme...
July 24, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28691718/additive-and-antagonistic-antinociceptive-interactions-between-magnesium-sulfate-and-ketamine-in-the-rat-formalin-test
#14
Katarina Savić Vujović, Sonja Vučković, Dolika Vasović, Branislava Medić, Nick Knežević, Milica Prostran
Because ketamine and magnesium block NMDA receptor activation by distinct mechanisms of action, we hypothesized that in a model of inflammatory pain in rats the combination of ketamine and magnesium might be more effective than ketamine alone. Antinociceptive activity was assessed by the formalin test in male Wistar rats (200-250 g). Animals were injected with 100 μL of 2.5% formalin to the plantar surface of the right hind paw. Data were recorded as the total time spent in pain-related behavior after the injection of formalin or vehicle (0...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28659769/propofol-sevoflurane-and-ketamine-induce-a-reversible-increase-in-delta-gamma-and-theta-gamma-phase-amplitude-coupling-in-frontal-cortex-of-rat
#15
Dinesh Pal, Brian H Silverstein, Lana Sharba, Duan Li, Viviane S Hambrecht-Wiedbusch, Anthony G Hudetz, George A Mashour
Studies from human and non-human species have demonstrated a breakdown of functional corticocortical connectivity during general anesthesia induced by anesthetics with diverse molecular, neurophysiological, and pharmacological profiles. Recent studies have demonstrated that changes in long-range neural communication, and by corollary, functional connectivity, might be influenced by cross-frequency coupling (CFC) between the phase of slow oscillations and the amplitude of local fast oscillations. Phase-amplitude coupling (PAC) between slow oscillations and alpha rhythm during general anesthesia reveal distinct patterns depending on the anesthetic...
2017: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/28623920/ketamine-induced-apoptosis-in-the-mouse-cerebral-cortex-follows-similar-characteristic-of-physiological-apoptosis-and-can-be-regulated-by-neuronal-activity
#16
Qi Wang, Feng-Yan Shen, Rong Zou, Jing-Jing Zheng, Xiang Yu, Ying-Wei Wang
The effects of general anesthetics on inducing neuronal apoptosis during early brain development are well-documented. However, since physiological apoptosis also occurs during this developmental window, it is important to determine whether anesthesia-induced apoptosis targets the same cell population as physiological apoptosis or different cell types altogether. To provide an adequate plane of surgery, ketamine was co-administered with dexmedetomidine. The apoptotic neurons in the mouse primary somatosensory cortex (S1) were quantitated by immunohistochemistry...
June 17, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28589265/effects-of-ketamine-on-the-unconditioned-and-conditioned-locomotor-activity-of-preadolescent-and-adolescent-rats-impact-of-age-sex-and-drug-dose
#17
Sanders A McDougall, Andrea E Moran, Timothy J Baum, Matthew G Apodaca, Vanessa Real
RATIONALE: Ketamine is used by preadolescent and adolescent humans for licit and illicit purposes. OBJECTIVE: The goal of the present study was to determine the effects of acute and repeated ketamine treatment on the unconditioned behaviors and conditioned locomotor activity of preadolescent and adolescent rats. METHODS: To assess unconditioned behaviors, female and male rats were injected with ketamine (5-40 mg/kg), and distance traveled was measured on postnatal day (PD) 21-25 or PD 41-45...
June 7, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28481700/pediatric-status-epilepticus-improved-management-with-new-drug-therapies
#18
REVIEW
Alberto Verrotti, Michela Ambrosi, Piero Pavone, Pasquale Striano
Status Epilepticus (SE) is the most common neurological emergency of childhood. It requires prompt administration of appropriately selected anti-seizure medications. Areas covered: Following a distinction between estabilished and emergent drugs, we present pharmacological treatment options and their clinical utility in children, with a short mention on alternatives to drug treatment. We also propose an algorithm for the management of pediatric SE. For this review a Pubmed, Medline and Embase search was performed...
June 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28461248/simultaneous-triple-therapy-for-the-treatment-of-status-epilepticus
#19
Jerome Niquet, Roger Baldwin, Keith Norman, Lucie Suchomelova, Lucille Lumley, Claude G Wasterlain
Early maladaptive internalization of synaptic GABAA receptors (GABAAR) and externalization of NMDA receptors (NMDAR) may explain the time-dependent loss of potency of standard anti-epileptic drugs (AED) in refractory status epilepticus (SE). We hypothesized that correcting the effects of changes in GABAAR and NMDAR would terminate SE, even when treatment is delayed 40 minutes. SE was induced in adult Sprague-Dawley rats with a high dose of lithium and pilocarpine. The GABAAR agonist midazolam, the NMDAR antagonist ketamine and the AED valproate were injected 40 min after SE onset in combination or as monotherapy...
August 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28458430/anesthetic-efficacy-of-ketamine-diazepam-ketamine-xylazine-and-ketamine-acepromazine-in-caspian-pond-turtles-mauremys-caspica
#20
Milad Adel, Amin Bigham Sadegh, Vincenzo Arizza, Hossein Abbasi, Luigi Inguglia, Hasan Nasrollahzadeh Saravi
OBJECTIVES: The objective of this study was to assess the efficacy of different anesthetic drug combinations on the Caspian Pond turtles (Mauremys caspica). SUBJECTS AND METHODS: Three groups of the Caspian Pond turtles (n = 6) were anesthetized with three different drug combinations. Initially, a pilot study was conducted to determine the best drug doses for the anesthetization of the turtles, and according to these results, ketamine-diazepam (120 mg/kg ketamine hydrochloride [5%] and 2 mg/kg diazepam [5%]), ketamine-acepromazine (120 mg/kg ketamine hydrochloride [5%] and 1 mg/kg acepromazine [1%]), and ketamine-xylazine (120 mg/kg ketamine hydrochloride [5%] and 1 mg/kg xylazine [2%]) were injected intramuscularly...
January 2017: Indian Journal of Pharmacology
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