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Methamphetamine addiction

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https://www.readbyqxmd.com/read/27909988/predicting-the-abuse-liability-of-entactogen-class-new-and-emerging-psychoactive-substances-via-preclinical-models-of-drug-self-administration
#1
Shawn M Aarde, Michael A Taffe
Animal models of drug self-administration are currently the gold standard for making predictions regarding the relative likelihood that a recreational drug substance will lead to continued use and addiction. Such models have been found to have high predictive accuracy and discriminative validity for a number of drug classes including ethanol, nicotine, opioids, and psychostimulants such as cocaine and methamphetamine. Members of the entactogen class of psychostimulants (drugs that produce an "open mind state" including feelings of interpersonal closeness, intimacy and empathy) have been less frequently studied in self-administration models...
December 2, 2016: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/27894467/association-between-hair-cortisol-concentration-and-perceived-stress-in-female-methamphetamine-addicts
#2
Liuna Geng, Peng Xiang, Jin Yang, Hui Shen, Zhiqin Sang
OBJECTIVE: The present study aims to explore whether hair cortisol concentration is associated with explicit stress or implicit stress in female methamphetamine addicts. METHODS: Hair samples were collected from 51 female methamphetamine addicts from inpatient addiction treatment programs. Perceived stress was assessed by both explicit and implicit measures through the Perceived Stress Scale (PSS) and the Implicit Association Test (IAT), respectively. RESULTS: The positive relationship between hair cortisol concentration with D-scores of the IAT reached statistically significant difference...
December 2016: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/27890469/methamphetamine-addiction-vulnerability-the-glutamate-the-bad-and-the-ugly
#3
Karen K Szumlinski, Kevin D Lominac, Rianne R Campbell, Matan Cohen, Elissa K Fultz, Chelsea N Brown, Bailey W Miller, Sema G Quadir, Douglas Martin, Andrew B Thompson, Georg von Jonquieres, Matthias Klugmann, Tamara J Phillips, Tod E Kippin
BACKGROUND: The high prevalence and severity of methamphetamine (MA) abuse demands greater neurobiological understanding of its etiology. METHODS: We conducted immunoblotting and in vivo microdialysis procedures in MA high/low drinking mice, as well as in isogenic C57BL/6J mice that varied in their MA preference/taking, to examine the glutamate underpinnings of MA abuse vulnerability. Neuropharmacological and Homer2 knockdown approaches were also used in C57BL/6J mice to confirm the role for nucleus accumbens (NAC) glutamate/Homer2 expression in MA preference/aversion...
October 13, 2016: Biological Psychiatry
https://www.readbyqxmd.com/read/27869204/mrna-changes-in-nucleus-accumbens-related-to-methamphetamine-addiction-in-mice
#4
Li Zhu, Jiaqi Li, Nan Dong, Fanglin Guan, Yufeng Liu, Dongliang Ma, Eyleen L K Goh, Teng Chen
Methamphetamine (METH) is a highly addictive psychostimulant that elicits aberrant changes in the expression of microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) in the nucleus accumbens of mice, indicating a potential role of METH in post-transcriptional regulations. To decipher the potential consequences of these post-transcriptional regulations in response to METH, we performed strand-specific RNA sequencing (ssRNA-Seq) to identify alterations in mRNA expression and their alternative splicing in the nucleus accumbens of mice following exposure to METH...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27853328/domestic-violence-in-methamphetamine-psychotic-users-psychiatric-inpatients-and-healthy-people-a-comparative-study
#5
Seyed Mohammad Rasoul Khalkhali, Kiomars Najafi, Reza Ahmadi, Azadeh Yousefnezhad, Azam Hamidi, Masoumeh Ellahi, Ali Amiri, Afsar Montakhabi, Maryam Zavarmousavi
BACKGROUND: Domestic violence is a serious threat to the physical and mental health of women. The aim of the present study was to find and compare the frequency of domestic violence between methamphetamine users, patients with psychiatric disorders, and healthy people. METHODS: In this analytical cross-sectional study, methamphetamine users (n=30) and patients with psychiatric disorders (n=30) were women whose husbands were hospitalized during 2014 in Shafa Psychiatric Hospital in Guilan...
November 2016: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/27846654/-synthetic-drugs-an-overview-of-important-and-newly-emerging-substances
#6
F Betzler, A Heinz, S Köhler
Background: Synthetic drug use and abuse are on the rise. Governmental institutions report a shift in consumption from natural drugs to synthetic drugs, and show an increase in confiscation, particularly of methamphetamine and newly identified psychoactive substances. In addition, the media report an alarming increase in the rate of consumption and casualties resulting from the use of drugs such as "crystal meth" and warn against a flood of this and other designer drugs from eastern European countries. Objectives: The present article gives an overview of current popular and widely used synthetic drugs, both classical substances (amphetamine, methamphetamine, MDMA) and new psychoactive substances ("designer drugs", "legal highs")...
November 2016: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/27813228/metabolic-alterations-in-the-anterior-cingulate-cortex-and-related-cognitive-deficits-in-late-adolescent-methamphetamine-users
#7
Jieun E Kim, Geon Ha Kim, Jaeuk Hwang, Jung Yoon Kim, Perry F Renshaw, Deborah A Yurgelun-Todd, Binna Kim, Ilhyang Kang, Saerom Jeon, Jiyoung Ma, In Kyoon Lyoo, Sujung Yoon
The adolescent brain, with ongoing prefrontal maturation, may be more vulnerable to drug use-related neurotoxic changes as compared to the adult brain. We investigated whether the use of methamphetamine (MA), a highly addictive psychostimulant, during adolescence affect metabolic and cognitive functions of the anterior cingulate cortex (ACC). In adolescent MA users (n = 44) and healthy adolescents (n = 53), the levels of N-acetyl aspartate (NAA), a neuronal marker, were examined in the ACC using proton magnetic resonance spectroscopy...
November 4, 2016: Addiction Biology
https://www.readbyqxmd.com/read/27803891/a-qualitative-study-of-the-relationship-between-methamphetamine-abuse-and-sexual-dysfunction-in-male-substance-abusers
#8
Behrouz Dolatshahi, Ali Farhoudian, Mozhgan Falahatdoost, Mahmoud Tavakoli, Ebrahim Rezaie Dogahe
BACKGROUND: Increased prevalent use of methamphetamine is a global public challenge. Information on drug use can be helpful in preventing high-risk behavior related to drug abuse. OBJECTIVES: This study aims to investigate the sexual function changes related to methamphetamine use in the male clients of public and private addiction treatment centers. PATIENTS AND METHODS: In this qualitative study, 45 men (35 methamphetamine users, 5 family members of the users, and 5 psychiatrists or physicians who were famous for treating or researching addiction) are involved...
September 2016: International Journal of High Risk Behaviors & Addiction
https://www.readbyqxmd.com/read/27799294/structure-activity-relationships-of-substituted-cathinones-with-transporter-binding-uptake-and-release
#9
Amy J Eshleman, Katherine M Wolfrum, John F Reed, Sunyoung O Kim, Tracy Swanson, Robert A Johnson, Aaron Janowsky
Synthetic cathinones are components of "bath salts" and have physical and psychologic side effects, including hypertension, paranoia, and hallucinations. Here, we report interactions of 20 "bath salt" components with human dopamine, serotonin, and norepinephrine transporters [human dopamine transporter (hDAT), human serotonin transporter (hSERT), and human norepinephrine transporter (hNET), respectively] heterologously expressed in human embryonic kidney 293 cells. Transporter inhibitors had nanomolar to micromolar affinities (Ki values) at radioligand binding sites, with relative affinities of hDAT>hNET>hSERT for α-pyrrolidinopropiophenone (α-PPP), α-pyrrolidinobutiophenone, α-pyrrolidinohexiophenone, 1-phenyl-2-(1-pyrrolidinyl)-1-heptanone, 3,4-methylenedioxy-α-pyrrolidinopropiophenone, 3,4-methylenedioxy-α-pyrrolidinobutiophenone, 4-methyl-α-pyrrolidinopropiophenone, α-pyrrolidinovalerophenone, 4-methoxy-α-pyrrolidinovalerophenone, α-pyrrolidinopentiothiophenone (alpha-PVT), and α-methylaminovalerophenone, and hDAT>hSERT>hNET for methylenedioxypentedrone...
January 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/27746146/methamphetamine-induced-toxicity-the-role-of-autophagy
#10
Ali Roohbakhsh, Kobra Shirani, Gholamreza Karimi
Methamphetamine (METH) is a highly potent and addictive drug with major medical, psychiatric, cognitive, socioeconomic, and legal consequences. It is well absorbed following different routes of administration and distributed throughout the body. METH is known as psychomotor stimulant with potent physiological outcomes on peripheral and central nervous systems, resulting in physical and psychological disorders. Autophagy is a highly conserved and regulated catabolic pathway which is critical for maintaining cellular energy homeostasis and regulating cell growth...
October 13, 2016: Chemico-biological Interactions
https://www.readbyqxmd.com/read/27743517/a-unique-opportunity-to-study-short-and-long-term-consequences-in-children-prenatally-exposed-to-illicit-drugs-and-opioid-maintenance-treatment-using-czech-and-scandinavian-registers
#11
Roman Gabrhelík, Blanka Nechanská, Viktor Mravčík, Svetlana Skurtveit, Ingunn Olea Lund, Marte Handal
Licit and illicit drug use in pregnant women constitutes a long lasting and serious problem worldwide. Information on long-term effects of maternal drug use on the child is limited. Nationwide registers provide a great potential to study short and long-term consequences for children exposed to licit and illicit drugs during pregnancy. We discuss this potential, with a special emphasis on exposure to methamphetamine, heroin and prescription drugs used for opioid maintenance treatment (OMT). We also discuss the advantages of register data and of merging such data from different regions...
September 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/27734823/-ibogaine-structure-influence-on-human-body-clinical-relevance
#12
Zygmunt Zdrojewicz, Bartłomiej Kuszczak, Natalia Olszak
Ibogaine is a natural chemical compound, which belongs to the indole alkaloid family. It can be naturally found within the root bark of african plant Tabernanthe iboga. Ibogaine plays a significant role among tribal cultures. Ibogaine, in small amount, causes reduction of hunger, thirst and exhaustion. In bigger amount, however, it can cause intensive visions. Other effects include reduction or complete disappearance of absitnence symptoms visible in people addicted to the nicotine, alcohol, methamphetamine, cocaine or opioids, what has been scientifically proven after the tests on animals and small groups of people...
July 29, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27670244/psychostimulant-drugs-for-cocaine-dependence
#13
Xavier Castells, Ruth Cunill, Clara Pérez-Mañá, Xavier Vidal, Dolors Capellà
BACKGROUND: Cocaine dependence is a severe disorder for which no medication has been approved. Like opioids for heroin dependence, replacement therapy with psychostimulants could be an effective therapy for treatment. OBJECTIVES: To assess the effects of psychostimulants for cocaine abuse and dependence. Specific outcomes include sustained cocaine abstinence and retention in treatment. We also studied the influence of type of drug and comorbid disorders on psychostimulant efficacy...
September 27, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27666973/effects-of-early-adolescent-methamphetamine-exposure-on-anxiety-like-behavior-and-corticosterone-levels-in-mice
#14
Micaela A Rud, Thao N Do, Jessica A Siegel
Methamphetamine (MA) is an addictive psychomotor stimulant that affects the central nervous system and alters behavior. The effects of MA are modulated by age, and while much research has examined the effects of MA use in adults, relatively little research has examined the effects in adolescents. As the brain is developing during adolescence, it is important that we understand the effects of MA exposure in adolescence. This research examined the effects of acute MA exposure on locomotor and anxiety-like behavior in the open field test and plasma corticosterone levels in adolescent male C57BL/6J mice...
October 28, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27658516/breakdown-of-blood-brain-and-blood-spinal-cord-barriers-during-acute-methamphetamine-intoxication-role-of-brain-temperature
#15
Eugene A Kiyatkin, Hari Sharma
Methamphetamine (METH) is a powerful and often abused stimulant with potent addictive and neurotoxic properties. While it is generally believed that structural brain damage induced by METH results from oxidative stress, in this work we present data suggesting robust disruption of blood-brain and blood-spinal cord barriers (BBB and BSCB) during acute METH intoxication in rats. We demonstrate the relationships between METH-induced brain hyperthermia and widespread but structure-specific barrier leakage, acute glial activation, changes in brain water and ionic homeostasis, and structural damage of different types of cells in the brain and spinal cord...
September 20, 2016: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/27608368/effectiveness-of-a-brief-home-based-social-work-motivational-intervention-for-male-methamphetamine-users-in-tehran-a-randomized-clinical-trial
#16
Morteza Danaee-Far, Masoomeh Maarefvand, Hassan Rafiey
UNLABELLED: Methamphetamine, a highly addictive psychostimulant drug, is widely used by substance users who are not motivated to undergo treatment throughout the world, including Iran. This research was conducted to evaluate the effectiveness of a brief home-based social work motivational intervention (HSWMI) to encourage male methamphetamine users to participate in a treatment program. METHOD: Fifty-six unmotivated male methamphetamine users participated in a randomized controlled trial...
December 5, 2016: Substance Use & Misuse
https://www.readbyqxmd.com/read/27603142/incubation-of-cue-induced-craving-in-adults-addicted-to-cocaine-measured-by-electroencephalography
#17
Muhammad A Parvaz, Scott J Moeller, Rita Z Goldstein
Importance: A common trigger for relapse in drug addiction is the experience of craving via exposure to cues previously associated with drug use. Preclinical studies have consistently demonstrated incubation of cue-induced drug-seeking during the initial phase of abstinence, followed by a decline over time. In humans, the incubation effect has been shown for alcohol, nicotine, and methamphetamine addictions, but not for heroin or cocaine addiction. Understanding the trajectory of cue-induced craving during abstinence in humans is of importance for addiction medicine...
November 1, 2016: JAMA Psychiatry
https://www.readbyqxmd.com/read/27581301/the-clock-gene-rev-erb%C3%AE-regulates-methamphetamine-actions-on-circadian-timekeeping-in-the-mouse-brain
#18
Nora L Salaberry, Maria Mateo, Jorge Mendoza
Circadian rhythms are strongly affected by drugs. In rodents, chronic methamphetamine (METH) intake changes circadian activity rhythms, mainly by altering light synchronization that generates the expression of a free-running rhythm with a period longer than 24 h and a second behavioral component that is independent of the main suprachiasmatic (SCN) clock. Although a number of clock genes do not appear to be involved in the effects of METH on circadian behavior, the molecular clockwork controlling these changes is still unclear...
September 1, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27579281/the-cortisol-level-and-its-relationship-with-depression-stress-and-anxiety-indices-in-chronic-methamphetamine-dependent-patients-and-normal-individuals-undergoing-inguinal-hernia-surgery
#19
Bijan Pirnia, Fatemeh Givi, Rasool Roshan, Kambiz Pirnia, Ali Akbar Soleimani
BACKGROUND: Stimulants addition and abuse can cause some functional and morphological changes in the normal function of glands and hormones. Methamphetamine as an addictive stimulant drug affects the Hypothalamic- pituitary-adrenal (HPA) axis and consequently makes some changes in the psychological state of the drug users. The present study aims to examine the relationship between plasma levels of cortisol with depression, stress and anxiety symptoms in chronic methamphetamine-dependent patients and normal individuals who have undergone the inguinal hernia surgery...
2016: Medical Journal of the Islamic Republic of Iran
https://www.readbyqxmd.com/read/27565679/cholecystokinin-8-inhibits-methamphetamine-induced-neurotoxicity-via-an-anti-oxidative-stress-pathway
#20
Di Wen, Meiling An, Hongyan Gou, Xia Liu, Li Liu, Chunling Ma, Bin Cong
As a powerful addictive psychostimulant drug, coupled with its neurotoxicity, methamphetamine (METH) abuse may lead to long-lasting abnormalities in brain structure and function. We found that pretreatment of cholecystokinin-8 (CCK-8) inhibited METH-induced brain cellular dopaminergic (DA) damage in the striatum and substantia nigra, and related behavioural deficits and hyperthermia. However, the mechanism of CCK-8 action on METH-induced toxicity is not clear. The aim of this study was to explore whether the possible protective effect of CCK-8 on METH-induced neurotoxicity involved anti-oxidative stress mechanisms...
August 23, 2016: Neurotoxicology
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