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https://www.readbyqxmd.com/read/27927933/disparities-and-guideline-adherence-in-drugs-of-abuse-screening-in-intracerebral-hemorrhage
#1
Laura M Tormoehlen, Ashley D Blatsioris, Elizabeth A S Moser, Ravan J L Carter, Alec Stevenson, Susan Ofner, Abigail L Hulin, Darren P O'Neill, Aaron A Cohen-Gadol, Thomas J Leipzig, Linda S Williams, Jason Mackey
OBJECTIVE: To characterize the pattern of urine drug screening in a cohort of intracerebral hemorrhage (ICH) patients at our academic centers. METHODS: We identified cases of primary ICH occurring from 2009 to 2011 in our academic centers. Demographic data, imaging characteristics, processes of care, and short-term outcomes were ascertained. We performed logistic regression to identify predictors for screening and evaluated preguideline and postguideline reiteration screening patterns...
December 7, 2016: Neurology
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
#2
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/27887830/drugs-of-abuse-and-their-metabolites-in-the-urban-rivers-of-beijing-china-occurrence-distribution-and-potential-environmental-risk
#3
Yan Zhang, Tingting Zhang, Changsheng Guo, Jiapei Lv, Zhendong Hua, Song Hou, Yuan Zhang, Wei Meng, Jian Xu
The occurrence and distribution of five drugs of abuse and their metabolites, namely, methamphetamine (METH), amphetamine (AMP), ketamine (KET), ephedrine (EPH), and hydroxylimine (HY), were investigated in the surface water in urban rivers in Beijing, China. A total of 117 surface water samples were collected from the seven rivers in the Beijing urban areas during four different seasons. Laboratory analyses revealed that EPH and METH were the most predominant drugs, with detection frequency ranging from 94% to 100% and from 65% to 100%, respectively...
November 22, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27884570/a-gc-ms-method-for-the-detection-and-quantitation-of-ten-major-drugs-of-abuse-in-human-hair-samples
#4
A Orfanidis, O Mastrogianni, A Koukou, G Psarros, H Gika, G Theodoridis, N Raikos
A sensitive analytical method has been developed in order to identify and quantify major drugs of abuse (DOA), namely morphine, codeine, 6-monoacetylmorphine, cocaine, ecgonine methyl ester, benzoylecgonine, amphetamine, methamphetamine, methylenedioxymethamphetamine and methylenedioxyamphetamine in human hair. Samples of hair were extracted with methanol under ultrasonication at 50°C after a three step rinsing process to remove external contamination and dirt hair. Derivatization with BSTFA was selected in order to increase detection sensitivity of GC/MS analysis...
November 10, 2016: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/27881618/simultaneous-screening-and-quantification-of-basic-neutral-and-acidic-drugs-in-blood-using-uplc-qtof-ms
#5
Sergei Bidny, Kim Gago, Phuong Chung, Desdemona Albertyn, Daniel Pasin
An analytical method using ultra performance liquid chromatography (UPLC) quadrupole time-of-flight mass spectrometry (QTOF-MS) was developed and validated for the targeted toxicological screening and quantification of commonly used pharmaceuticals and drugs of abuse in postmortem blood using 100 µL sample. It screens for more than 185 drugs and metabolites and quantifies more than 90 drugs. The selected compounds include classes of pharmaceuticals and drugs of abuse such as: antidepressants, antipsychotics, analgesics (including narcotic analgesics), anti-inflammatory drugs, benzodiazepines, beta-blockers, amphetamines, new psychoactive substances (NPS), cocaine and metabolites...
November 22, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27876594/successful-control-of-a-large-outbreak-of-hiv-infection-associated-with-injection-of-cathinone-derivatives-in-tel-aviv-israel
#6
Eugene Katchman, Ronen Ben-Ami, Michal Savyon, Daniel Chemtob, Boaz Avidor, Asaf Wasserman, Irena Zeldis, Shirley Girshengorn, Ziva Amitai, Rivka Sheffer, Dan Turner
OBJECTIVES: Outbreaks of HIV infection have been linked to injectable drug abuse, but specific triggers often remain obscure. We report on an outbreak of primary HIV infection among people who inject drugs (PWID) in Tel Aviv, associated with a local shift in drug-use practices. METHODS: A cluster of primary HIV infection cases in PWID was detected in May 2012. Retrospective and prospective multi-hospital case finding was initiated. PWID were interviewed and risk factors for primary HIV infection were identified...
November 19, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27864947/determining-the-toxicological-significance-of-pregabalin-in-fatalities
#7
Simon P Elliott, Timothy Burke, Christopher Smith
Pregabalin has become more widely prescribed and abused in recent years but is still not always included in laboratory analysis. An LC-MS-MS method has been developed and applied to measure pregabalin in 93 postmortem cases, including drug-related deaths, alternative causes of death, and fatalities where pregabalin was likely to have contributed to death. Other drugs or alcohol was detected, and the most common drug types (in decreasing frequency) were antidepressants, opioids, benzodiazepines, opiates, alcohol, antipsychotics, cocaine, cardiac drugs, amphetamines, cannabis, anticonvulsants, and antihistamines...
November 16, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27846654/-synthetic-drugs-an-overview-of-important-and-newly-emerging-substances
#8
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/27823666/modifier-assisted-differential-mobility-tandem-mass-spectrometry-method-for-detection-and-quantification-of-amphetamine-type-stimulants-in-urine
#9
Pai-Shan Chen, Shu-Hua Chen, Jung-Hsuan Chen, Wan-Yun Haung, Hsin-Tung Liu, Po-Hsin Kong, Olivia Hsu-Yuan Yang
An advantage of differential mobility spectrometry (DMS) is it provides an orthogonal mechanism to mass spectrometry (MS). The DMS-MS/MS detects analytes in the gas phase on the basis of differences in ion mobility in low and high electric fields, which makes DMS-MS/MS an alternative to chromatographic separation-MS. One drawback of DMS is its limited resolution and sensitivity, especially for detecting small molecules when using a nonpolar inert gas as the carrier gas. The present work has evaluated the effects on peak capacity of adding chemical modifiers to inert carrier gases (nitrogen, helium, argon and carbon dioxide)...
November 23, 2016: Analytica Chimica Acta
https://www.readbyqxmd.com/read/27784226/evidence-of-2-populations-of-mephedrone-abusers-by-hair-testing-application-to-4-forensic-expertises
#10
Pascal Kintz
New psychoactive substances are conquering the drug scene. Among these substances, cathinone derivatives have been observed since late in the year 2000. At that time, an increasing use of the synthetic cathinone mephedrone (4-methylmethcathinone) started to be observed, particularly among night clubbers. Although these new psychoactive drugs showed an appearance of safety, a growing amount of experiences on their secondary effects has been reported. Mephedrone for example is known to induce psychosis. Given the potential negative effects of mephedrone, the laboratory was asked to test for the drug in hair, a cumulative matrix that can document single, occasional or repetitive abuse of xenobiotics...
October 26, 2016: Current Neuropharmacology
https://www.readbyqxmd.com/read/27771748/pharmacogenetics-of-stimulant-abuse-liability-association-of-cdh13-variant-with-amphetamine-response-in-a-racially-heterogeneous-sample-of-healthy-young-adults
#11
Adam M Leventhal, Matthew G Kirkpatrick, Mollie S Pester, John E McGeary, Robert M Swift, Steve Sussman, Christopher W Kahler
RATIONALE: A previous genome-wide association study (GWAS) in a predominately Caucasian sample of healthy young adults linked greater amphetamine-induced rewarding effects with the rs3784943 G allele of the cadherin 13 (CDH13; i.e., a cell adhesion molecule implicated in neuronal connectivity) gene. This association has not been subsequently examined, nor has it been studied in Asian populations, which may have greater frequencies of the risk allele. OBJECTIVE: The objective of this study was to examine the association of rs3784943 with amphetamine response in a racially heterogeneous sample (37 % Asian) of healthy young adults...
October 22, 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27767406/racial-and-ethnic-differences-in-substance-use-diagnoses-comorbid-psychiatric-disorders-and-treatment-initiation-among-hiv-positive-and-hiv-negative-women-in-an-integrated-health-plan
#12
Erik David Storholm, Michael J Silverberg, Derek D Satre
Access to substance use disorder (SUD) treatment is a critical issue for women with HIV. This study examined differences in SUD diagnoses, comorbid psychiatric diagnoses, and predictors of SUD treatment initiation among a diverse sample of HIV-positive women (n = 228) and a demographically similar cohort of HIV-negative women (n = 693). Diagnoses and service utilization data were obtained from electronic health records of members of a large integrated healthcare system in Northern California. HIV-positive women were less likely to initiate SUD treatment...
November 2016: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/27753008/neurotoxicology-of-synthetic-cathinone-analogs
#13
Mariana Angoa-Pérez, John H Anneken, Donald M Kuhn
The present review briefly explores the neurotoxic properties of methcathinone, mephedrone, methylone, and methylenedioxypyrovalerone (MDPV), four synthetic cathinones most commonly found in "bath salts." Cathinones are β-keto analogs of the commonly abused amphetamines and display pharmacological effects resembling cocaine and amphetamines, but despite their commonalities in chemical structures, synthetic cathinones possess distinct neuropharmacological profiles and produce unique effects. Among the similarities of synthetic cathinones with their non-keto analogs are their targeting of monoamine systems, the release of neurotransmitters, and their stimulant properties...
October 18, 2016: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/27729826/psychiatric-comorbidities-in-a-young-man-with-subacute-myelopathy-induced-by-abusive-nitrous-oxide-consumption-a-case-report
#14
Falk Mancke, Gintarė Kaklauskaitė, Jennifer Kollmer, Markus Weiler
Nitrous oxide (N2O), a long-standing anesthetic, is known for its recreational use, and its consumption is on the rise. Several case studies have reported neurological and psychiatric complications of N2O use. To date, however, there has not been a study using standardized diagnostic procedures to assess psychiatric comorbidities in a patient consuming N2O. Here, we report about a 35-year-old male with magnetic resonance imaging confirmed subacute myelopathy induced by N2O consumption, who suffered from comorbid cannabinoid and nicotine dependence as well as abuse of amphetamines, cocaine, lysergic acid diethylamide, and ketamine...
2016: Substance Abuse and Rehabilitation
https://www.readbyqxmd.com/read/27709249/cocaine-like-discriminative-stimulus-effects-of-amphetamine-cathinone-methamphetamine-and-their-3-4-methylenedioxy-analogs-in-male-rhesus-monkeys
#15
Douglas A Smith, Bruce E Blough, Matthew L Banks
RATIONALE: Synthetic cathinones have emerged as the newest class of abused monoamine transporter substrates. Structurally, these compounds are all beta-ketone amphetamine (cathinone) analogs. Whether synthetic cathinone analogs produce differential behavioral effects from their amphetamine analog counterparts has not been systematically examined. Preclinical drug discrimination procedures have been useful for determining the structure activity relationships (SARs) of abused drugs; however, direct comparisons between amphetamine and cathinone analogs are lacking and, in particular, in non-human primate models...
October 5, 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27701408/enhanced-sensitivity-to-drugs-of-abuse-and-palatable-foods-following-maternal-overnutrition
#16
D Peleg-Raibstein, G Sarker, K Litwan, S D Krämer, S M Ametamey, R Schibli, C Wolfrum
Epidemiological studies have shown an association between maternal overnutrition and increased risk of the progeny for the development of obesity as well as psychiatric disorders. Animal studies have shown results regarding maternal high-fat diet (HFD) and a greater risk of the offspring to develop obesity. However, it still remains unknown whether maternal HFD can program the central reward system in such a way that it will imprint long-term changes that will predispose the offspring to addictive-like behaviors that may lead to obesity...
October 4, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27697555/transition-from-ethanol-induced-sensitization-to-tolerance-across-early-and-late-infancy-in-the-rat
#17
Stefania Castello, Genesis D'Aloisio, Carlos Arias, Juan Carlos Molina
Drugs of abuse, as cocaine or amphetamine, induce locomotor sensitization during infancy and adulthood of the rat. This effect during the preweanling period is observed only after a short interval of time between training and testing. We recently reported short-term locomotor sensitization induced by ethanol in pups chronically exposed to the drug during the second postnatal week of life. The present series of experiments was designed to explore the persistence of the sensitization effect across the preweanling period...
September 30, 2016: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/27690507/prescription-stimulant-medication-misuse-where-are-we-and-where-do-we-go-from-here
#18
Lisa L Weyandt, Danielle R Oster, Marisa E Marraccini, Bergljot Gyda Gudmundsdottir, Bailey A Munro, Emma S Rathkey, Alison McCallum
Prescription stimulants, including methylphenidate (e.g., Ritalin) and amphetamine compounds (e.g., dextroamphetamine; Adderall), have been approved by the U.S. Food and Drug Administration for the treatment of attention-deficit/hyperactivity disorder (ADHD) and are classified by the United States Drug Enforcement Administration as Schedule II medications because of their high potential for abuse and dependence (Drug Enforcement Administration, U.S. Department of Justice, 2015). Despite the potential health and judicial consequences, misuse of prescription stimulants, typically defined as taking stimulants without a valid prescription, or use of stimulants other than as prescribed, has become a serious problem in the United States and abroad, especially on college campuses...
October 2016: Experimental and Clinical Psychopharmacology
https://www.readbyqxmd.com/read/27687740/opposite-effects-of-acute-and-chronic-amphetamine-on-nurr1-and-nf-%C3%AE%C2%BAb-p65-in-the-rat-ventral-tegmental-area
#19
Cristian Arredondo, Marcela González, María Estela Andrés, Katia Gysling
Dopamine neurons are overstimulated by drugs of abuse and suffer molecular alterations that lead to addiction behavior. Nurr1 is a transcription factor crucial for dopamine neurons survival and dopamine production, activating the transcription of key genes like tyrosine hydroxylase (TH). Interestingly, nuclear factor-kappa B (NF-κB) has emerged as a new Nurr1 partner in response to inflammatory stimulus. In this study we evaluated the effects of single and repeated amphetamine administration in the expression of Nurr1 and the NF-κB p65 subunit in the rat ventral tegmental area (VTA)...
September 26, 2016: Brain Research
https://www.readbyqxmd.com/read/27670244/psychostimulant-drugs-for-cocaine-dependence
#20
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
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