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https://www.readbyqxmd.com/read/29342356/the-dark-side-of-total-synthesis-strategies-and-tactics-in-psychoactive-drug-production
#1
Schuyler A Chambers, Jenna M DeSousa, Eric D Huseman, Steven D Townsend
Humankind has used and abused psychoactive drugs for millennia. Formally, a psychoactive drug is any agent that alters cognition and mood. The term "psychotropic drug" is neutral and describes the entire class of substrates, licit and illicit, of interest to governmental drug policy. While these drugs are prescribed for issues ranging from pain management to anxiety, they are also used recreationally. In fact, the current opioid epidemic is the deadliest drug crisis in American history. While the topic is highly politicized with racial, gender, and socioeconomic elements, there's no denying the toll drug mis- and overuse is taking on this country...
January 17, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29341327/involvement-of-the-dorsal-hippocampus-in-expression-and-extinction-of-cocaine-induced-conditioned-place-preference
#2
Leah N Hitchcock, K Matthew Lattal
A key aspect of substance abuse is that drug taking often occurs in a specific context. As a consequence, exposure to drug-associated contexts can trigger cravings and relapse, even after long periods of abstinence. Although many studies have demonstrated that the hippocampus is critical for developing and retrieving contextual and spatial memories, comparatively little is known about the role of the hippocampus in acquiring and inhibiting memories involving contexts and drugs of abuse. We examined the effects of hippocampal inactivation on expression of cocaine-induced conditioned place preference (CPP) after initial acquisition or extinction of CPP in C57BL/6 mice...
January 17, 2018: Hippocampus
https://www.readbyqxmd.com/read/29339724/granulocyte-colony-stimulating-factor-controls-neural-and-behavioral-plasticity-in-response-to-cocaine
#3
Erin S Calipari, Arthur Godino, Emily G Peck, Marine Salery, Nicholas L Mervosh, Joseph A Landry, Scott J Russo, Yasmin L Hurd, Eric J Nestler, Drew D Kiraly
Cocaine addiction is characterized by dysfunction in reward-related brain circuits, leading to maladaptive motivation to seek and take the drug. There are currently no clinically available pharmacotherapies to treat cocaine addiction. Through a broad screen of innate immune mediators, we identify granulocyte-colony stimulating factor (G-CSF) as a potent mediator of cocaine-induced adaptations. Here we report that G-CSF potentiates cocaine-induced increases in neural activity in the nucleus accumbens (NAc) and prefrontal cortex...
January 16, 2018: Nature Communications
https://www.readbyqxmd.com/read/29338873/opioid-and-psychostimulant-plasticity-targeting-overlap-in-nucleus-accumbens-glutamate-signaling
#4
REVIEW
Matthew Hearing, Nicholas Graziane, Yan Dong, Mark J Thomas
Commonalities in addictive behavior, such as craving, stimuli-driven drug seeking, and a high propensity for relapse following abstinence, have pushed for a unified theory of addiction that encompasses most abused substances. This unitary theory has recently been challenged - citing distinctions in structural neural plasticity, biochemical signaling, and neural circuitry to argue that addiction to opioids and psychostimulants is behaviorally and neurobiologically distinct. Recent more selective examination of drug-induced plasticity has highlighted that these two drug classes promote an overall reward circuitry signaling overlap through modifying excitatory synapses in the nucleus accumbens - a key constituent of the reward system...
January 12, 2018: Trends in Pharmacological Sciences
https://www.readbyqxmd.com/read/29338328/avoidance-meaning-and-grief-psychosocial-factors-influencing-engagement-in-hiv-care
#5
Georgia J Michlig, Ryan P Westergaard, Yukyan Lam, Azal Ahmadi, Gregory D Kirk, Andrew Genz, Jeanne Keruly, Heidi Hutton, Pamela J Surkan
Although the introduction of antiretroviral therapy has rendered HIV a chronic illness, inconsistent engagement in HIV care by key populations limits its public health impact. Poor engagement in care is especially prevalent among vulnerable populations with mental health and substance use disorders. Beyond structural and health system considerations, psychosocial factors may present challenges to sustained engagement. We conducted a qualitative study using in-depth interviews with 31 primarily African American, urban-based individuals, many with past or current drug use and mental disorders, living with HIV...
January 17, 2018: AIDS Care
https://www.readbyqxmd.com/read/29337986/the-e2-65a-mutation-disrupts-dynamic-binding-poses-of-sb269652-at-the-dopamine-d2-and-d3-receptors
#6
Ravi Kumar Verma, Ara M Abramyan, Mayako Michino, R Benjamin Free, David R Sibley, Jonathan A Javitch, J Robert Lane, Lei Shi
The dopamine D2 and D3 receptors (D2R and D3R) are important targets for antipsychotics and for the treatment of drug abuse. SB269652, a bitopic ligand that simultaneously binds both the orthosteric binding site (OBS) and a secondary binding pocket (SBP) in both D2R and D3R, was found to be a negative allosteric modulator. Previous studies identified Glu2.65 in the SBP to be a key determinant of both the affinity of SB269652 and the magnitude of its cooperativity with orthosteric ligands, as the E2.65A mutation decreased both of these parameters...
January 16, 2018: PLoS Computational Biology
https://www.readbyqxmd.com/read/29337399/impact-of-pregnancy-on-psychoactive-substance-use-among-women-with-substance-use-disorders-recruited-in-addiction-specialized-care-centers-in-france
#7
Liselotte Pochard, Julie Dupouy, Elisabeth Frauger, Adeline Giocanti, Joëlle Micallef, Maryse Lapeyre-Mestre
Pregnancy can be a motivation for decrease in drug abusing but may also represent a period of high vulnerability for relapse.We aimed to assess psychoactive substance use among women with substance use disorders followed in addiction care centers in France. We analyzed data from women aged 15-44 years included in the 'Observation of illegal drugs and misuse of psychotropic medication survey' (OPPIDUM), an annualcross-sectional survey collecting details on psychoactive substances used. Characteristics of women included in 2005 to 2012 yearly surveys were compared depending on their pregnant or not pregnant status...
January 16, 2018: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/29337083/palmitoylethanolamide-attenuates-cocaine-induced-behavioral-sensitization-and-conditioned-place-preference-in-mice
#8
Emma Zambrana-Infantes, Cristina Rosell Del Valle, David Ladrón de Guevara-Miranda, Pablo Galeano, Estela Castilla-Ortega, Fernando Rodríguez De Fonseca, Eduardo Blanco, Luis Javier Santín
Cocaine addiction is a chronically relapsing disorder characterized by compulsive drug-seeking and drug-taking behaviors. Previous studies have demonstrated that cocaine, as well as other drugs of abuse, alters the levels of lipid-based signaling molecules, such as N-acylethanolamines (NAEs). Moreover, brain levels of NAEs have shown sensitivity to cocaine self-administration and extinction training in rodents. Given this background, the aim of this study was to investigate the effects of repeated or acute administration of palmitoylethanolamide (PEA), an endogenous NAE, on psychomotor sensitization and cocaine-induced contextual conditioning...
January 11, 2018: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/29336948/the-effect-of-a-potentially-tamper-resistant-oxycodone-formulation-on-opioid-use-and-harm-main-findings-of-the-national-opioid-medications-abuse-deterrence-nomad-study
#9
Briony Larance, Timothy Dobbins, Amy Peacock, Robert Ali, Raimondo Bruno, Nicholas Lintzeris, Michael Farrell, Louisa Degenhardt
BACKGROUND: Escalation of pharmaceutical opioid use and harm in North America is well-documented, with similar issues emerging in Australia. One response is the development of tamper-resistant formulations of opioids. A potentially tamper-resistant formulation of controlled-release oxycodone was introduced in Australia in April, 2014, rapidly replacing the non-tamper-resistant formulation. Our study is the most systematic and comprehensive examination of the impact of a new opioid formulation to date, assessing the effect of tamper-resistant formulation of controlled-release oxycodone on population-level opioid use and opioid-related harm (ie, overdose, help-seeking, and treatment-seeking); and opioid use, tampering, and preference for the tamper-resistant formulation of controlled-release oxycodone compared with other drugs or formulations among sentinel populations likely to tamper with pharmaceutical opioids...
January 10, 2018: Lancet Psychiatry
https://www.readbyqxmd.com/read/29334961/smoke-alcohol-and-drug-addiction-and-male-fertility
#10
REVIEW
Andrea Sansone, Carla Di Dato, Cristina de Angelis, Davide Menafra, Carlotta Pozza, Rosario Pivonello, Andrea Isidori, Daniele Gianfrilli
In recent decades, the decline in human fertility has become increasingly more worrying: while therapeutic interventions might help, they are vexing for the couple and often burdened with high failure rates and costs. Prevention is the most successful approach to fertility disorders in males and females alike. We performed a literature review on three of the most common unhealthy habits - tobacco, alcohol and drug addiction - and their reported effects on male fertility. Tobacco smoking is remarkably common in most first-world countries; despite a progressive decline in the US, recent reports suggest a prevalence of more than 30% in subjects of reproductive age - a disturbing perspective, given the well-known ill-effects on reproductive and sexual function as well as general health...
January 15, 2018: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29333890/cigarette-smoking-and-quit-attempts-among-latinos-in-substance-use-disorder-treatment
#11
Anna Pagano, Noah Gubner, Thao Le, Joseph Guydish
BACKGROUND: Differences in tobacco use behaviors have been identified between Latinos and non-Latino whites in the general US population. Little is known about cigarette smoking and quitting behaviors of Latinos in treatment for substance use disorders (SUDs), who represent two major tobacco-vulnerable groups. OBJECTIVES: To compare, in a national sample of persons enrolled in SUD treatment, demographic, drug use, and smoking and quitting prevalence and behaviors between Latinos and non-Latino whites...
January 15, 2018: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/29333488/dopamine-development-in-the-mouse-orbital-prefrontal-cortex-is-protracted-and-sensitive-to-amphetamine-in-adolescence
#12
Daniel Hoops, Lauren M Reynolds, Jose-Maria Restrepo-Lozano, Cecilia Flores
The prefrontal cortex (PFC) is divided into subregions, including the medial and orbital prefrontal cortices. Dopamine connectivity in the medial PFC (mPFC) continues to be established throughout adolescence as the result of the continuous growth of axons that innervated the nucleus accumbens (NAcc) prior to adolescence. During this period, dopamine axons remain vulnerable to environmental influences, such as drugs used recreationally by humans. The developmental trajectory of the orbital prefrontal dopamine innervation remains almost completely unstudied...
January 2018: ENeuro
https://www.readbyqxmd.com/read/29332099/association-between-the-intron-8-vntr-polymorphism-of-the-dat1-gene-and-crack-cocaine-addiction
#13
Anderson R Stolf, Diana Müller, Jaqueline B Schuch, Gláucia C Akutagava-Martins, Luciano S P Guimaraes, Claudia M Szobot, Ricardo Halpern, Felix H P Kessler, Flavio Pechansky, Tatiana Roman
BACKGROUND: This study aims to compare allele and genotype frequencies of a 30-bp variable number of tandem repeats (VNTR) polymorphism of the DAT1 gene, located at intron 8, between adult crack cocaine users and nonaddicted individuals. Due to its involvement in drug addiction, this gene is a good candidate for molecular studies. METHODS: A cross-sectional sample of 239 current adult crack abusers or dependents from in- and outpatient clinics and 211 control individuals was collected in Brazil...
January 12, 2018: Neuropsychobiology
https://www.readbyqxmd.com/read/29330986/use-of-psychoactive-drugs-among-medical-undergraduates-in-abbottabad
#14
Haq Nawaz, Aftab Alam Khan, Saima Bukhari
BACKGROUND: Psychoactive substance abuse is prevalent among medical undergraduates of Pakistan, India & Western countries which can adversely affect the physical & psychological grooming of a medical undergraduate thus threatening to compromise their role as future physicians & health-care providers in the society. The objective of the present cross-sectional study was to explore the prevalence and patterns of psychoactive substance/drug consumption among undergraduate students of a public sector medical college in Abbottabad...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29330163/affective-stimuli-in-behavioural-interventions-soliciting-for-health-check-up-services-and-the-service-users-socioeconomic-statuses-a-study-at-japanese-pachinko-parlours
#15
Naoki Kondo, Yoshiki Ishikawa
BACKGROUND: Socioeconomically vulnerable people are likely to have more health risks because of inadequate behaviour choices related to chronic social stresses. Brain science suggests that stress causes cognitively biased automatic decision making, preferring instant stress relief and pleasure (eg, smoking, alcohol use and drug abuse) as opposed to reflectively seeking health-maintenance services (eg, health check-ups). As such, hedonic stimuli that nudge people towards preventive actions could reduce health behaviour disparities...
January 12, 2018: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/29330137/the-intersection-of-stress-and-reward-bnst-modulation-of-aversive-and-appetitive-states
#16
REVIEW
Sarah Ch'ng, Jingjing Fu, Robyn M Brown, Stuart J McDougall, Andrew J Lawrence
The bed nucleus of the stria terminalis (BNST) is widely acknowledged as a brain structure that regulates stress and anxiety states, as well as aversive and appetitive behaviours. The diverse roles of the BNST are afforded by its highly modular organisation, neurochemical heterogeneity, and complex intrinsic and extrinsic circuitry. There has been growing interest in the BNST in relation to psychopathologies such as anxiety and addiction. Although research on the human BNST is still in its infancy, there have been extensive preclinical studies examining the molecular signature and hodology of the BNST and their involvement in stress and reward seeking behaviour...
January 9, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29329090/simultaneous-accelerated-solvent-extraction-and-hydrolysis-of-11-nor-%C3%AE-9-tetrahydrocannabinol-9-carboxylic-acid-glucuronide-in-meconium-samples-for-gas-chromatography-mass-spectrometry-analysis
#17
Cinthia de Carvalho Mantovani, Jefferson Pereira E Silva, Guilherme Forster, Rafael Menck de Almeida, Edna Maria de Albuquerque Diniz, Mauricio Yonamine
Cannabis misuse during pregnancy is associated with severe impacts on the mother and baby health, such as newborn low birth weight, growth restriction, pre-term birth, neurobehavioral and developmental deficits. In most of the cases, drug abuse is omitted or denied by the mothers. Thus, toxicological analyzes using maternal-fetal matrices takes place as a suitable tool to assess drug use. Herein, meconium was the chosen matrix to evaluate cannabis exposure through identification and quantification of 11-nor-Δ9-tetrahydrocannabinol-9-carboxylic (THCCOOH)...
January 7, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29328897/high-users-of-healthcare-strategies-to-improve-care-reduce-costs
#18
REVIEW
Neil Siekman, Rick Hilger
A minority of patients consume a disproportionate amount of healthcare, especially in the emergency department. These "high users" are a small but complex group whose expenses are driven largely by low socioeconomic status, mental illness, and drug abuse; lack of social services also contributes. Several promising efforts aimed at improving quality and reducing healthcare costs for high users include care management organizations, patient care plans, and better discharge summaries.
January 2018: Cleveland Clinic Journal of Medicine
https://www.readbyqxmd.com/read/29327631/the-association-between-adverse-childhood-experiences-and-adult-traumatic-brain-injury-concussion-a-scoping-review
#19
Zechen Ma, Mark T Bayley, Laure Perrier, Priya Dhir, Lana Dépatie, Paul Comper, Lesley Ruttan, Christine Lay, Sarah E P Munce
BACKGROUND: Adverse childhood experiences are significant risk factors for physical and mental illnesses in adulthood. Traumatic brain injury/concussion is a challenging condition where pre-injury factors may affect recovery. The association between childhood adversity and traumatic brain injury/concussion has not been previously reviewed. The research question addressed is: What is known from the existing literature about the association between adverse childhood experiences and traumatic brain injury/concussion in adults? METHODS: All original studies of any type published in English since 2007 on adverse childhood experiences and traumatic brain injury/concussion outcomes were included...
January 12, 2018: Disability and Rehabilitation
https://www.readbyqxmd.com/read/29327525/drug-abuse-as-an-emanating-risk-for-stroke-in-young-adults
#20
Sulena, Anjani Kumar Sharma
Drug abuse is a substantial risk factor for stroke among patients under 45 years of age and ranks second among the most commonly identified potential risk factors. Drug abusers aged 15 to 44 years are 6.5 times more likely to have a stroke than non drug users. Stroke occurring in persons under 45 years of age accounts for only 4% of all strokes but causes an enormous toll in personal suffering, lost productivity, and health care costs.
December 2017: Journal of the Association of Physicians of India
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