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Addiction physiolgical

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78 papers 500 to 1000 followers
By Christopher Cook Addiction professional. LPC, CADC, CRNP- student, Interventionist, project manager, owner, Director, eval/refer for SUDs/Eating D/o's, 60000 beds referral base
https://www.readbyqxmd.com/read/28623508/clinical-pharmacokinetic-characteristics-of-cebranopadol-a-novel-first-in-class-analgesic
#1
Elke Kleideiter, Chiara Piana, Shaonan Wang, Robert Nemeth, Michael Gautrois
BACKGROUND AND OBJECTIVES: Cebranopadol is a novel first-in-class analgesic acting as a nociceptin/orphanin FQ peptide and opioid peptide receptor agonist with central analgesic activity. It is currently in clinical development for the treatment of chronic pain conditions. This trial focuses on the clinical pharmacokinetic (PK) properties of cebranopadol after oral single- and multiple-dose administration. METHODS: The basic PK properties of cebranopadol were assessed by means of noncompartmental methods in six phase I clinical trials in healthy subjects and patients...
June 16, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28713291/an-expanding-world-of-novel-psychoactive-substances-opioids
#2
REVIEW
Jolanta B Zawilska
The abuse of novel psychoactive substances (NPS) has been increasing dramatically worldwide since late 2000s. By the end of 2015, more than 560 NPS had been reported to the European Monitoring Centre for Drugs and Drug Addiction. Although the most popular compounds are synthetic cannabinoids and psychostimulatory derivatives of cathinone (so-called β-keto-amphetamines), novel synthetic opioids have recently emerged on the recreational drug market. They include fentanyl (a potent narcotic analgesic) and its analogs (e...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/1445968/beta-endorphin-levels-during-heroin-methadone-buprenorphine-and-naloxone-challenges-preliminary-findings
#3
COMPARATIVE STUDY
T R Kosten, C Morgan, M J Kreek
Beta endorphin (BE) is a polypeptide agonist for the brain's endogenous opioid system. Levels of BE are elevated by opioid antagonists such as naloxone and depressed by short-acting agonists such as heroin and morphine; they become normalized during steady-state methadone. Buprenorphine (BUP) is a partial opioid agonist whose effects on BE levels were examined in six former heroin addicts and 14 methadone-maintained patients before and after being switched to sublingual BUP 2 mg daily for 1 month. In six former methadone-treated subjects BE levels also were measured after stopping BUP and after naloxone challenge...
September 15, 1992: Biological Psychiatry
https://www.readbyqxmd.com/read/9617990/opioid-detoxification-with-delta-sleep-inducing-peptide-results-of-an-open-clinical-trial
#4
COMPARATIVE STUDY
M Backmund, K Meyer, H B Rothenhaeusler, M Soyka
No abstract text is available yet for this article.
June 1998: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28479740/effect-of-shankhpushpi-on-alcohol-addiction-in-mice
#5
Mahi Heba, Sana Faraz, Sugato Banerjee
Alcohol addiction is a worldwide problem. It has mainly two components: dependence and withdrawal. Characteristic properties of most anti-addictive compounds include anti-anxiety, anticonvulsant, antidepressant, and nootropic actions. Shankhpushpi (Convolvulus pluricaulis. Convolvulaceae), known ethnopharmacologically as brain tonic, possess all the properties mentioned above. Here, we screen shankhpushpi for possible anti-addictive potential. Effect of shankhpushpi churna was measured on ethanol withdrawal anxiety using elevated plus maze...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28634445/antioxidant-treatment-with-n-acetyl-cysteine-prevents-the-development-of-cognitive-and-social-behavioral-deficits-that-result-from-perinatal-ketamine-treatment
#6
Aarron Phensy, Hasmik E Duzdabanian, Samantha Brewer, Anurag Panjabi, Christopher Driskill, Annuska Berz, George Peng, Sven Kroener
Alterations of the normal redox state can be found in all stages of schizophrenia, suggesting a key role for oxidative stress in the etiology and maintenance of the disease. Pharmacological blockade of N-methyl-D-aspartic acid (NMDA) receptors can disrupt natural antioxidant defense systems and induce schizophrenia-like behaviors in animals and healthy human subjects. Perinatal administration of the NMDA receptor (NMDAR) antagonist ketamine produces persistent behavioral deficits in adult mice which mimic a range of positive, negative, and cognitive symptoms that characterize schizophrenia...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28004314/pharmacological-treatment-in-%C3%AE-hydroxybutyrate-ghb-and-%C3%AE-butyrolactone-gbl-dependence-detoxification-and-relapse-prevention
#7
REVIEW
Rama M Kamal, Martijn S van Noorden, Wim Wannet, Harmen Beurmanjer, Boukje A G Dijkstra, Arnt Schellekens
The misuse of γ-hydroxybutyrate (GHB) for recreational purposes has resulted in an increase in GHB-related problems such as intoxications, dependence and withdrawal in several countries in Europe, Australia and the US over the last decade. However, prevalence rates of misuse of GHB and its precursor, γ-butyrolactone (GBL), are still relatively low. In this qualitative review paper, after a short introduction on the pharmacology of GHB/GBL, followed by a summary of the epidemiology of GHB abuse, an overview of GHB dependence syndrome and GHB/GBL withdrawal syndrome is provided...
January 2017: CNS Drugs
https://www.readbyqxmd.com/read/28579487/intoxication-by-gamma-hydroxybutyrate-and-related-analogues-clinical-characteristics-and-comparison-between-pure-intoxication-and-that-combined-with-other-substances-of-abuse
#8
Òscar Miró, Miguel Galicia, Paul Dargan, Alison M Dines, Isabelle Giraudon, Fridtjof Heyerdahl, Knut E Hovda, Christopher Yates, David M Wood
OBJECTIVE: To study the profile of European gamma-hydroxybutyrate (GHB) and gammabutyrolactone (GBL) intoxication and analyse the differences in the clinical manifestations produced by intoxication by GHB/GBL alone and in combination with other substances of abuse. METHOD: We prospectively collected data on all the patients attended in the Emergency Departments (ED) of the centres participating in the Euro-DEN network over 12 months (October 2013 to September 2014) with a primary presenting complaint of drug intoxication (excluding ethanol alone) and registered the epidemiological and clinical data and outcomes...
June 1, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28638432/mechanical-stimulation-of-the-ht7-acupuncture-point-to-reduce-ethanol-self-administration-in-rats
#9
Suk-Yun Kang, O Sang Kwon, Ji-Young Moon, Seong Jin Cho, Kwang-Ho Choi, Junbeom Kim, Seong-Hun Ahn, Yeonhee Ryu
BACKGROUND: Alcoholism, which is a disabling addiction disorder, is a major public health problem worldwide. The present study was designed to determine whether the application of acupuncture at the Shenmen (HT7) point suppresses voluntary alcohol consumption in addicted rats and whether this suppressive effect is potentiated by the administration of naltrexone. METHODS: Rats were initially trained to self-administer a sucrose solution by operating a lever. A mechanical acupuncture instrument (MAI) for objective mechanical stimulation was used on rats whose baseline response had been determined...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28646714/synthetic-cathinones-and-stereochemistry-s-enantiomer-of-mephedrone-reduces-anxiety-and-depressant-like-effects-in-cocaine-or-mdpv-abstinent-rats
#10
Helene L Philogene-Khalid, Callum Hicks, Allen B Reitz, Lee-Yuan Liu-Chen, Scott M Rawls
BACKGROUND AND PURPOSE: The neuropharmacological profile of the synthetic cathinone mephedrone (MEPH) is influenced by stereochemistry. Both MEPH enantiomers are monoamine transporter substrates, but R-MEPH is primarily responsible for rewarding effects of MEPH as it produces greater locomotor activation and intracranial self-stimulation than S-MEPH. S-MEPH is a 50-fold more potent 5-HT releaser than R-MEPH and does not place preference in rats. MEPH is also structurally similar to the cathinone derivative bupropion, an antidepressant and smoking cessation medication, suggesting MEPH has therapeutic and addictive properties...
June 13, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28635181/buprenorphine-requires-concomitant-activation-of-nop-and-mop-receptors-to-reduce-cocaine-consumption
#11
Marsida Kallupi, Qianwei Shen, Giordano de Guglielmo, Dennis Yasuda, V Blair Journigan, Nurulain T Zaveri, Roberto Ciccocioppo
Buprenorphine's clinical use is approved for the treatment of heroin addiction; however, evidence supporting its efficacy in cocaine abuse also exists. While for heroin it has been demonstrated that the effect of buprenorphine is mediated by its ability to activate μ-opioid peptide receptor (MOP) receptors, the mechanism through which it attenuates cocaine intake remains elusive. We explored this mechanism using operant models where rodents were trained to chronically self-administer cocaine for 2 hours daily...
June 21, 2017: Addiction Biology
https://www.readbyqxmd.com/read/27603752/oxytocin-for-the-treatment-of-drug-and-alcohol-use-disorders
#12
Mary R Lee, Elise M Weerts
There is growing interest in the use of oxytocin (OT) as a potential treatment for alcohol and other substance-use disorders. OT is a neuropeptide that modulates adaptive processes associated with addiction including reward, tolerance, associative learning, memory, and stress responses. OT exerts its effects through interactions with the hypothalamic-pituitary-adrenal axis and multiple neurotransmitter systems including the dopamine mesolimbic reward and corticotrophin-releasing factor stress systems. The effects of OT on stress systems are of high interest, given the strong link between stress, drug use and relapse, and known dysregulation of hypothalamic-pituitary-adrenal-axis activity associated with substance-use disorders...
December 2016: Behavioural Pharmacology
https://www.readbyqxmd.com/read/27457809/unexpected-global-impact-of-vta-dopamine-neuron-activation-as-measured-by-opto-fmri
#13
S Lohani, A J Poplawsky, S-G Kim, B Moghaddam
Dopamine neurons in the ventral tegmental area (VTA) are strongly implicated in cognitive and affective processing as well as in psychiatric disorders, including schizophrenia, depression, attention-deficit hyperactivity disorder and substance abuse disorders. In human studies, dopamine-related functions are routinely assessed using functional magnetic resonance imaging (fMRI) measures of blood oxygenation-level-dependent (BOLD) signals during the performance of dopamine-dependent tasks. There is, however, a critical void in our knowledge about whether and how activation of VTA dopamine neurons specifically influences regional or global fMRI signals...
April 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28485408/genetic-and-pharmacological-antagonism-of-nk1-receptor-prevents-opiate-abuse-potential
#14
A J Sandweiss, M I McIntosh, A Moutal, R Davidson-Knapp, J Hu, A K Giri, T Yamamoto, V J Hruby, R Khanna, T M Largent-Milnes, T W Vanderah
Development of an efficacious, non-addicting analgesic has been challenging. Discovery of novel mechanisms underlying addiction may present a solution. Here we target the neurokinin system, which is involved in both pain and addiction. Morphine exerts its rewarding actions, at least in part, by inhibiting GABAergic input onto substance P (SP) neurons in the ventral tegmental area (VTA), subsequently increasing SP release onto dopaminergic neurons. Genome editing of the neurokinin 1 receptor (NK1R) in the VTA renders morphine non-rewarding...
May 9, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28555075/acute-ketamine-administration-corrects-abnormal-inflammatory-bone-markers-in-major-depressive-disorder
#15
B Kadriu, P W Gold, D A Luckenbaugh, M S Lener, E D Ballard, M J Niciu, I D Henter, L T Park, R T De Sousa, P Yuan, R Machado-Vieira, C A Zarate
Patients with major depressive disorder (MDD) have clinically relevant, significant decreases in bone mineral density (BMD). We sought to determine if predictive markers of bone inflammation-the osteoprotegerin (OPG)-RANK-RANKL system or osteopontin (OPN)-play a role in the bone abnormalities associated with MDD and, if so, whether ketamine treatment corrected the abnormalities. The OPG-RANK-RANKL system plays the principal role in determining the balance between bone resorption and bone formation. RANKL is the osteoclast differentiating factor and diminishes BMD...
May 30, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28574864/methadone-management-of-withdrawal-associated-with-loperamide-related-opioid-use-disorder
#16
Raphael J Leo, Muhammad A Ghazi, Kelly S Jaziri
: Loperamide hydrochloride is an over-the-counter anti-diarrheal agent, acting via mu-opioid receptor agonist effects in the intestinal myenteric plexus. Although preclinical investigations suggested that abuse liability associated with loperamide use is low, there are increasing numbers of cases reported to the US Food and Drug Administration, of abuse, dependence, and withdrawal associated with loperamide use. A case of a patient with opioid use disorder, that is, in the form of protracted loperamide excess use, requiring management of withdrawal with methadone is presented...
June 1, 2017: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/28590391/misuse-of-novel-synthetic-opioids-a-deadly-new-trend
#17
Matthew P Prekupec, Peter A Mansky, Michael H Baumann
: Novel synthetic opioids (NSOs) include various analogs of fentanyl and newly emerging non-fentanyl compounds. Together with illicitly manufactured fentanyl (IMF), these drugs have caused a recent spike in overdose deaths, whereas deaths from prescription opioids have stabilized. NSOs are used as stand-alone products, as adulterants in heroin, or as constituents of counterfeit prescription medications. During 2015 alone, there were 9580 deaths from synthetic opioids other than methadone. Most of these fatalities were associated with IMF rather than diverted pharmaceutical fentanyl...
June 5, 2017: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/21320758/low-doses-of-dextromethorphan-attenuate-morphine-induced-rewarding-via-the-sigma-1-receptor-at-ventral-tegmental-area-in-rats
#18
Shiou-Lan Chen, Kuei-Ying Hsu, Eagle Yi-Kung Huang, Ru-Band Lu, Pao-Luh Tao
Chronic use of morphine causes rewarding and behavioral sensitization, which may lead to the development of psychological craving. In our previous study, we found that a widely used antitussive dextromethorphan (known as a low affinity NMDA receptor antagonist), at doses of 10-20 mg/kg (i.p.), effectively decreased morphine rewarding in rats. In this study, we further investigated the effects and mechanisms of low doses of DM (μg/kg range) on morphine rewarding and behavioral sensitization. A conditioned place preference test was used to determine the rewarding and a locomotor activity test was used to determine the behavioral sensitization induced by the drug(s) in rats...
September 1, 2011: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/25716777/a-placebo-controlled-trial-of-dextromethorphan-as-an-adjunct-in-opioid-dependent-patients-undergoing-methadone-maintenance-treatment
#19
RANDOMIZED CONTROLLED TRIAL
Sheng-Yu Lee, Shiou-Lan Chen, Yun-Hsuan Chang, Chun-Hsien Chu, Shih-Heng Chen, Po See Chen, San-Yuan Huang, Nian-Sheng Tzeng, Liang-Jen Wang, I Hui Lee, Tzu-Yun Wang, Kao Chin Chen, Yen Kuang Yang, Jau-Shyong Hong, Ru-Band Lu
BACKGROUND: Low-dose dextromethorphan (DM) might have anti-inflammatory and neurotrophic effects mechanistically remote from an NMDA receptor. In a randomized, double-blind, controlled 12 week study, we investigated whether add-on dextromethorphan reduced cytokine levels and benefitted opioid-dependent patients undergoing methadone maintenance therapy (MMT). METHODS: Patients were randomly assigned to a group: DM60 (60mg/day dextromethorphan; n = 65), DM120 (120mg/day dextromethorphan; n = 65), or placebo (n = 66)...
February 25, 2015: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28150390/gray-matter-relationships-to-diagnostic-and-transdiagnostic-features-of-drug-and-behavioral-addictions
#20
Sarah W Yip, Patrick D Worhunsky, Jiansong Xu, Kristen P Morie, R Todd Constable, Robert T Malison, Kathleen M Carroll, Marc N Potenza
Alterations in neural structure have been reported in both cocaine-use disorder and gambling disorder, separately, suggesting similarities across addiction diagnoses. Individual variation in neural structure has also been associated with impulsivity, a dimensional construct implicated in addictions. This study combines categorical (diagnosis-based) and dimensional (transdiagnostic) approaches to identify neural structural alterations linked to addiction subtypes and trait impulsivity, respectively, across individuals with gambling disorder (n = 35), individuals with cocaine-use disorder (n = 37) and healthy comparison individuals (n = 37)...
February 1, 2017: Addiction Biology
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