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https://www.readbyqxmd.com/read/28935605/pyridoxine-improves-hippocampal-cognitive-function-via-increases-of-serotonin-turnover-and-tyrosine-hydroxylase-and-its-association-with-cb1-cannabinoid-receptor-interacting-protein-and-the-cb1-cannabinoid-receptor-pathway
#1
Hyo Young Jung, Dae Won Kim, Sung Min Nam, Jong Whi Kim, Jin Young Chung, Moo-Ho Won, Je Kyung Seong, Yeo Sung Yoon, Dae Young Yoo, In Koo Hwang
BACKGROUND: In the present study, we investigated the effects of pyridoxine on hippocampal functions and changes in protein profiles based on the proteomic approach. METHODS: Eight-week-old mice received intraperitoneal injections of physiological saline (vehicle) or 350mg/kg pyridoxine twice a day for 21days. RESULTS: Phosphoglycerate mutase 1 was up-regulated, while CB1 cannabinoid receptor-interacting protein 1 (CRIP1) was down-regulated, in the pyridoxine-treated group...
September 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28933969/psychopharmacological-advances-in-eating-disorders
#2
Hubertus Himmerich, Janet Treasure
Anorexia nervosa (AN), bulimia nervosa (BN) and binge eating disorder (BED) are the primary eating disorders (EDs). The only psychopharmacological treatment options for EDs with approval in some countries include fluoxetine for BN and lisdexamfetamine for BED. Given the high comorbidity and genetic correlations with other psychiatric disorders, it seems possible that novel medications for these conditions might also be effective in EDs. Areas Covered: The current scientific literature has increased our understanding of how medication could be beneficial for patients with EDs on a molecular, functional and behavioral level...
September 21, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28925883/novel-therapeutics-in-glaucoma-management
#3
Claudio Bucolo, Chiara Bianca Maria Platania, Filippo Drago, Michele Reibaldi, Vincenza Bonfiglio, Teresio Avitabile, Maurizio Uva
Glaucoma is a progressive optic neuropathy characterized by retinal ganglion cell death and alterations of visual field. Elevated intraocular pressure (IOP) is considered the main risk factor of glaucoma, even though other factors cannot be ruled out, such as epigenetic mechanisms. An overview of the ultimate promising experimental drugs to manage glaucoma has been provided. In particular, we have focused on purinergic ligands, KATP channel activators, gases (nitric oxide, carbon monoxide and hydrogen sulfide), non-glucocorticoid steroidal compounds, neurotrophic factors, PI3K/Akt activators, citicoline, histone deacetylase inhibitors, cannabinoids, dopamine and serotonin receptors ligands, small interference RNA, and Rho kinase inhibitors...
September 15, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28858691/pharmacological-challenge-studies-with-acute-psychosocial-stress
#4
REVIEW
Kathryne Van Hedger, Anya K Bershad, Harriet de Wit
Chronic stress is known to affect many psychiatric disorders, and studies of responses to acute stress may reveal processes that ultimately lead to maladaptive responses to chronic stress. Many studies have used simulated public speaking tasks to induce stress in the laboratory and, of interest to this review, the tasks have been used to assess the effects of both therapeutic and nonmedical drugs on stress reactivity. Here we review 38 studies that examined effects of single doses of drugs on subjective, cardiovascular and hormonal responses to an acute social stressor in healthy volunteers...
August 22, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28826537/actions-and-regulation-of-ionotropic-cannabinoid-receptors
#5
Luciano De Petrocellis, Massimo Nabissi, Giorgio Santoni, Alessia Ligresti
Almost three decades have passed since the identification of the two specific metabotropic receptors mediating cannabinoid pharmacology. Thereafter, many cannabinoid effects, both at central and peripheral levels, have been well documented and characterized. However, numerous evidences demonstrated that these pharmacological actions could not be attributable solely to the activation of CB1 and CB2 receptors since several important cannabimimetic actions have been found in biological systems lacking CB1 or CB2 gene such as in specific cell lines or transgenic mice...
2017: Advances in Pharmacology
https://www.readbyqxmd.com/read/28826532/endocannabinoid-analytical-methodologies-techniques-that-drive-discoveries-that-drive-techniques
#6
Fabiana Piscitelli, Heather B Bradshaw
Identification of the two major endogenous cannabinoid ligands, known as endocannabinoids, N-arachidonoyl-ethanolamine (anandamide, AEA) and 2-arachidonoyl-glycerol (2-AG), opened the way for the identification and isolation of other lipid congeners, all derivatives of fatty acids and related to the Endocannabinoid System. The nomenclature of this anandamide-type class of lipids is evolving as new species are discovered all the time. However, they each fall under the larger umbrella of lipids that are a conjugation of a fatty acid with an amine through and amide bond, which we will refer to as lipoamines...
2017: Advances in Pharmacology
https://www.readbyqxmd.com/read/28733540/am1241-alleviates-mptp-induced-parkinson-s-disease-and-promotes-the-regeneration-of-da-neurons-in-pd-mice
#7
Jun Shi, Qiong Cai, Jingxing Zhang, Xiaolie He, Yigang Liu, Rongrong Zhu, Lingjing Jin
The main pathological feature of Parkinson's disease (PD) is the loss of dopaminergic neurons in the substantia nigra. In this study, we investigated the role of cannabinoid receptor 2 (CB2R) agonist AM1241 on 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced neurotoxicity in a mouse model of PD. Upon treatment with AM1241, the decreased CB2R level in the PD mouse brain was reversed and the behavior score markedly elevated, accompanied with a dose-dependent increase of dopamine and serotonin. In addition, western blot assay and immunostaining results suggested that AM1241 significantly activated PI3K/Akt/MEK phosphorylation and increased the expression of Parkin and PINK1, both in the substantia nigra and hippocampus...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28660730/fatty-acid-amide-hydrolase-faah-inactivation-confers-enhanced-sensitivity-to-nicotine-induced-dopamine-release-in-the-mouse-nucleus-accumbens
#8
Francisco J Pavon, Antonia Serrano, Nimish Sidhpura, Ilham Polis, David Stouffer, Fernando Rodriguez de Fonseca, Benjamin F Cravatt, Rémi Martin-Fardon, Loren H Parsons
Nicotine exerts its rewarding effects by promoting an increase in dopamine (DA) release in the nucleus accumbens (NAc), and this process is influenced by the endocannabinoid system. Fatty acid amide hydrolase (FAAH) is the main enzyme responsible for the degradation of the endocannabinoid anandamide and other non-cannabinoid N-acylethanolamines. Previous research has reported that both genetic deletion and pharmacological inhibition of FAAH enhance nicotine-induced conditioned place preference at low doses...
June 29, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28625856/nitroglycerin-increases-serotonin-transporter-expression-in-rat-spinal-cord-but-anandamide-modulated-this-effect
#9
Gábor Nagy-Grócz, Zsuzsanna Bohár, Annamária Fejes-Szabó, Klaudia Flóra Laborc, Eleonóra Spekker, Lilla Tar, László Vécsei, Árpád Párdutz
Migraine is one of the most prevalent neurological diseases, which affects 16% of the total population. The exact pathomechanism of this disorder is still not well understood, but it seems that serotonin and its transporter have a crucial role in the pathogenesis. One of the animal models of migraine is the systemic administration of nitroglycerin (NTG), a nitric oxide (NO) donor. NO can initiate a central sensitization process in the trigeminal system, which is also present in migraineurs. Recent studies showed that the endocannabinoid system has a modulatory role on the trigeminal activation and sensitization...
June 15, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28583049/n-arachidonoyl-serotonin-a-dual-faah-and-trpv1-blocker-inhibits-the-retrieval-of-contextual-fear-memory-role-of-the-cannabinoid-cb1-receptor-in-the-dorsal-hippocampus
#10
Pedro H Gobira, Isabel V Lima, Luara A Batista, Antônio C de Oliveira, Leonardo B Resstel, Carsten T Wotjak, Daniele C Aguiar, Fabricio A Moreira
Anandamide, an endocannabinoid, inhibits aversive responses by activating the CB1 cannabinoid receptor. At high concentrations, however, anandamide may exert pro-aversive activities mediated by the transient receptor potential vanilloid type-1 channel (TRPV1). Accordingly, N-arachidonoyl-serotonin (AA-5-HT), a dual blocker of the anandamide-hydrolysing enzyme fatty acid amide hydrolase (FAAH) and the TRPV1 channel, induces anxiolytic-like effects. Here we tested the hypothesis that AA-5-HT inhibits the expression of contextual fear conditioning by facilitating CB1 receptor signalling in the dorsal hippocampus of mice...
June 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28577135/a-review-of-adjunctive-cns-medications-used-for-the-treatment-of-post-surgical-pain
#11
REVIEW
Ajit Rai, Howard Meng, Aliza Weinrib, Marina Englesakis, Dinesh Kumbhare, Liza Grosman-Rimon, Joel Katz, Hance Clarke
Inadequate post-operative pain management can have significant impacts on patients' quality of life. Effective management of acute pain after surgery is important for early mobilization and discharge from hospital, patient satisfaction, and overall well-being. Utilizing multimodal analgesic strategies has become the mainstay of acute post-operative pain management. A comprehensive search was performed, assessing the published or otherwise publically available literature on different central nervous system (CNS) drugs [excluding opioids, non-steroidal anti-inflammatory drugs (NSAIDs), and acetaminophen] and their uses to treat acute post-surgical pain...
July 2017: CNS Drugs
https://www.readbyqxmd.com/read/28539670/simvastatin-and-bezafibrate-ameliorate-emotional-disorder-induced-by-high-fat-diet-in-c57bl-6-mice
#12
Hui Wang, Jia Zhou, Qiong Zhen Liu, Lu Lu Wang, Jing Shang
High fat diet (HFD)-induced metabolic disorders may lead to emotional disorders. This study aimed to explore the effect of simvastatin (SMV) and bezafibrate (BZ) on improving HFD-induced emotional changes, and tried to identify their different mechanisms. The intraperitoneal glucose tolerance test (IPGTT) was used to evaluate glucose control ability; and behavior tests including open field tests (OFT), forced swimming tests (FST), tail suspension tests (TST) and sucrose preference (SPT), were then performed to evaluate emotional changes...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28409931/1-4-18-f-fluorobenzyl-4-tetrahydrofuran-2-yl-methyl-piperazine-a-novel-suitable-radioligand-with-low-lipophilicity-for-imaging-%C3%AF-1-receptors-in-the-brain
#13
Yingfang He, Fang Xie, Jiajun Ye, Winnie Deuther-Conrad, Bixiao Cui, Liang Wang, Jie Lu, Jörg Steinbach, Peter Brust, Yiyun Huang, Jie Lu, Hongmei Jia
We have designed and synthesized novel piperazine compounds with low lipophilicity as σ1 receptor ligands. 1-(4-Fluorobenzyl)-4-[(tetrahydrofuran-2-yl)methyl]piperazine (10) possessed a low nanomolar σ1 receptor affinity and a high selectivity toward the vesicular acetylcholine transporter (>2000-fold), σ2 receptors (52-fold), and adenosine A2A, adrenergic α2, cannabinoid CB1, dopamine D1, D2L, γ-aminobutyric acid A (GABAA), NMDA, melatonin MT1, MT2, and serotonin 5-HT1 receptors. The corresponding radiotracer [(18)F]10 demonstrated high brain uptake and extremely high brain-to-blood ratios in biodistribution studies in mice...
May 25, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28356298/activation-of-cb1-receptors-by-2-arachidonoylglycerol-attenuates-vasoconstriction-induced-by-u46619-and-angiotensin-ii-in-human-and-rat-pulmonary-arteries
#14
Olga Karpińska, Marta Baranowska-Kuczko, Monika Kloza, Ewa Ambroz Ewicz, Tomasz Kozłowski, Irena Kasacka, Barbara Malinowska, Hanna Kozłowska
Recent evidence suggests that endocannabinoids acting via cannabinoid CB1 receptors may modulate vascular responses of various vasoconstrictors in the rodent systemic vasculature. The aim of the study was to investigate whether endocannabinoids modulate the contractile responses evoked by a thromboxane A2 analog (U46619), angiotensin II (ANG II), serotonin (5-HT), and phenylephrine, which stimulate distinct Gq/11 protein-coupled receptors (thromboxane, ANG II type 1, 5-HT2, and α1-adrenergic receptors) in isolated endothelium-intact human and rat pulmonary arteries (hPAs and rPAs, respectively)...
June 1, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28349316/cannabis-cannabinoids-and-sleep-a-review-of-the-literature
#15
REVIEW
Kimberly A Babson, James Sottile, Danielle Morabito
PURPOSE OF REVIEW: The current review aims to summarize the state of research on cannabis and sleep up to 2014 and to review in detail the literature on cannabis and specific sleep disorders from 2014 to the time of publication. RECENT FINDINGS: Preliminary research into cannabis and insomnia suggests that cannabidiol (CBD) may have therapeutic potential for the treatment of insomnia. Delta-9 tetrahydrocannabinol (THC) may decrease sleep latency but could impair sleep quality long-term...
April 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28282499/non-opioid-medications-for-the-relief-of-chronic-breathlessness-current-evidence
#16
REVIEW
Carlo Barbetta, David C Currow, Miriam J Johnson
To evaluate systematically randomised clinical trials investigating non-opioid medications for the management and treatment of chronic breathlessness. Areas covered: The evidence for the role of benzodiazepines, anxiolytics, selective serotonin re-uptake inhibitors (SSRIs), tricyclic antidepressants, antihistamines, cannabinoids, nebulized furosemide and herbal-based treatments were critically reviewed. Search of the Clinical Trials Registry (Clinicaltrial.gov) identified ongoing studies expected to generate new data in the near future in several classes of non-opioid medications for their net effect on chronic breathlessness...
April 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28194132/molecular-imaging-markers-to-track-huntington-s-disease-pathology
#17
REVIEW
Heather Wilson, Rosa De Micco, Flavia Niccolini, Marios Politis
Huntington's disease (HD) is a progressive, monogenic dominant neurodegenerative disorder caused by repeat expansion mutation in the huntingtin gene. The accumulation of mutant huntingtin protein, forming intranuclear inclusions, subsequently leads to degeneration of medium spiny neurons in the striatum and cortical areas. Genetic testing can identify HD gene carriers before individuals develop overt cognitive, psychiatric, and chorea symptoms. Thus, HD gene carriers can be studied in premanifest stages to understand and track the evolution of HD pathology...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28144708/differential-effects-of-cannabinoid-cb1-inverse-agonists-and-antagonists-on-impulsivity-in-male-sprague-dawley-rats-identification-of-a-possibly-clinically-relevant-vulnerability-involving-the-serotonin-5ht1a-receptor
#18
Peter J McLaughlin, Julia E Jagielo-Miller, Emily S Plyler, Kerry K Schutte, V Kiran Vemuri, Alexandros Makriyannis
RATIONALE: Cannabinoid CB1 inverse agonists hold therapeutic promise as appetite suppressants but have produced suicidal behaviors among a small subpopulation in clinical trials. Anatomical and pharmacological evidence implicate the 5HT1A serotonin receptor in suicide in humans and impulsivity in humans and animals. OBJECTIVE: The objective of the study is to assess whether 5HT1A blockade is necessary for CB1 ligands to produce impulsivity. METHODS: Sprague Dawley rats were administered the CB1 inverse agonist AM 251, the CB1 antagonist AM 6527, or the peripherally restricted antagonist AM 6545, with or without pretreatment with the 5HT1A antagonist WAY 100,635 (WAY) on the paced fixed consecutive number (FCN) task, which measures choice to terminate a chain of responses prematurely...
March 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28108358/neurochemical-and-metabolic-effects-of-acute-and-chronic-alcohol-in-the-human-brain-studies-with-positron-emission-tomography
#19
REVIEW
Nora D Volkow, Corinde E Wiers, Ehsan Shokri-Kojori, Dardo Tomasi, Gene-Jack Wang, Ruben Baler
The use of Positron emission tomography (PET) to study the effects of acute and chronic alcohol on the human brain has enhanced our understanding of the mechanisms underlying alcohol's rewarding effects, the neuroadaptations from chronic exposure that contribute to tolerance and withdrawal, and the changes in fronto-striatal circuits that lead to loss of control and enhanced motivation to drink that characterize alcohol use disorders (AUD). These include studies showing that alcohol's reinforcing effects may result not only from its enhancement of dopaminergic, GABAergic and opioid signaling but also from its caloric properties...
January 18, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/27938441/a-dual-inhibitor-of-faah-and-trpv1-channels-shows-dose-dependent-effect-on-depression-like-behaviour-in-rats
#20
Christian Kirkedal, Gregers Wegener, Fabricio Moreira, Sâmia Regiane Lourenco Joca, Nico Liebenberg
OBJECTIVE: The cannabinoid receptor 1 (CB1) and transient receptor potential cation channel subfamily V member 1 (TRPV1) are proposed to mediate opposite behavioural responses. Their common denominator is the endocannabinoid ligand anandamide (AEA), which is believed to mediate antidepressant-like effect via CB1-R stimulation and depressive-like effect via TRPV1 activation. This is supposed to explain the bell-shaped dose-response curve for anandamide in preclinical models. METHODS: We investigated this assumption by administering the dual inhibitor of AEA hydrolysis and TRPV1 activation N-arachidonoyl-serotonin (AA-5HT) into the medial prefrontal cortex of rats...
December 12, 2016: Acta Neuropsychiatrica
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