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https://www.readbyqxmd.com/read/29275216/mdpv-in-forensic-routine-cases-psychotic-and-aggressive-behavior-in-relation-to-plasma-concentrations
#1
Marco Diestelmann, Anna Zangl, Inge Herrle, Eva Koch, Matthias Graw, Liane D Paul
The new psychoactive substance 3,4-methylenedioxypyrovalerone (MDPV) belongs to the group of synthetic cathinones and is purchased mainly as "research chemical" or "bath salt" on the illegal drug market, also in South Bavaria. MDPV was detected in blood and urine samples from 2010 on in 50 authentic routine cases in a forensic setting. Plasma concentrations in 46 cases with available blood specimens ranged from approximately 1.0 to 301μg/L (median 23.7; mean 47.9μg/L), detected by a fully validated LC-MS/MS method...
December 8, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29217539/inhibition-of-cocaine-and-3-4-methylenedioxypyrovalerone-mdpv-self-administration-by-lorcaserin-is-mediated-by-5-ht2c-receptors-in-rats
#2
Brenda M Gannon, Agnieszka Sulima, Kenner C Rice, Gregory T Collins
Lorcaserin is a serotonin (5-HT)2C receptor-preferring agonist approved by the US Food and Drug Administration to treat obesity. Lorcaserin has been shown to decrease cocaine self-administration in rats and monkeys. Although this effect is partially inhibited by a 5-HT2C receptor antagonist (SB 242084), lorcaserin also has effects at 5-HT2A and 5-HT1A receptors and the relative contribution of these receptors to its anti-cocaine effects has not been investigated. The goals of this study were to determine: (1) the potency and effectiveness of lorcaserin to decrease self-administration of cocaine and 3,4-methylenedioxypyrovalerone (MDPV), a common "bath salts" constituent; and (2) the receptor(s) mediating the effects of lorcaserin on cocaine and MDPV self-administration...
December 7, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29214532/qualitative-and-quantitative-temporal-analysis-of-licit-and-illicit-drugs-in-wastewater-in-australia-using-liquid-chromatography-coupled-to-mass-spectrometry
#3
Richard Bade, Jason M White, Cobus Gerber
The combination of qualitative and quantitative bimonthly analysis of pharmaceuticals and illicit drugs using liquid chromatography coupled to mass spectrometry is presented. A liquid chromatography-quadrupole time of flight instrument equipped with Sequential Window Acquisition of all THeoretical fragment-ion spectra (SWATH) was used to qualitatively screen 346 compounds in influent wastewater from two wastewater treatment plants in South Australia over a 14-month period. A total of 100 compounds were confirmed and/or detected using this strategy, with 61 confirmed in all samples including antidepressants (amitriptyline, dothiepin, doxepin), antipsychotics (amisulpride, clozapine), illicit drugs (cocaine, methamphetamine, amphetamine, 3,4-methylenedioxymethamphetamine (MDMA)), and known drug adulterants (lidocaine and tetramisole)...
December 6, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29183686/neurocognitive-dysfunction-following-repeated-binge-like-self-administration-of-the-synthetic-cathinone-3-4-methylenedioxypyrovalerone-mdpv
#4
REVIEW
Kaveish Sewalia, Lucas R Watterson, Alyssa Hryciw, Anna Belloc, J Bryce Ortiz, M Foster Olive
Synthetic cathinones, frequently referred to as "bath salts", have significant abuse potential, and recent evidence suggests that these novel psychoactive substances can also produce cognitive deficits as well as cytotoxic effects. However, most of these latter findings have been obtained either using high concentrations in vitro or following non-contingent high dose administration in vivo. The present study utilized a model of long-term voluntary binge-like self-administration to determine potential detrimental effects of synthetic cathinones on cognitive function and their known underlying neural circuits, collectively referred to as neurocognitive dysfunction...
November 25, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29121936/molecular-characterization-of-a-novel-muscovy-duck-parvovirus-isolate-evidence-of-recombination-between-classical-mdpv-and-goose-parvovirus-strains
#5
Jianye Wang, Jueyi Ling, Zhixian Wang, Yu Huang, Jianzhong Zhu, Guoqiang Zhu
BACKGROUND: Muscovy duck parvovirus (MDPV) and Goose parvovirus (GPV) are important etiological agents for Muscovy duck parvoviral disease and Derzsy's disease, respectively; both of which can cause substantial economic losses in waterfowl industry. In contrast to GPV, the complete genomic sequence data of MDPV isolates are still limited and their phylogenetic relationships largely remain unknown. In this study, the entire genome of a pathogenic MDPV strain ZW, which was isolated from a deceased Muscovy duckling in 2006 in China, was cloned, sequenced, and compared with that of other classical MDPV and GPV strains...
November 9, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29097307/effect-fingerprinting-of-new-psychoactive-substances-nps-what-can-we-learn-from-in-vitro-data
#6
REVIEW
Laura Hondebrink, Anne Zwartsen, Remco H S Westerink
The use of new psychoactive substances (NPS) is increasing and currently >600 NPS have been reported. However, limited information on neuropharmacological and toxicological effects of NPS is available, hampering risk characterization. We reviewed the literature on the in vitro neuronal modes of action to obtain effect fingerprints of different classes of illicit drugs and NPS. The most frequently reported NPS were selected for review: cathinones (MDPV, α-PVP, mephedrone, 4-MEC, pentedrone, methylone), cannabinoids (JWH-018), (hallucinogenic) phenethylamines (4-fluoroamphetamine, benzofurans (5-APB, 6-APB), 2C-B, NBOMes (25B-NBOMe, 25C-NBOMe, 25I-NBOMe)), arylcyclohexylamines (methoxetamine) and piperazine derivatives (mCCP, TFMPP, BZP)...
October 30, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29042316/concurrent-repeated-exposure-to-3-4-methylenedioxypyrovalerone-and-cocaine-produce-locomotor-sensitization-with-minimal-effects-on-brain-monoamines
#7
REVIEW
Robert J Kohler, Shane A Perrine, Lisa E Baker
Synthetic cathinones, known as "bath salts" on the illicit drug market, pose a significant public health concern. 3,4-Methylenedioxypyrovalerone (MDPV), one of several popular constituents of illicit bath salts, produces similar pharmacological actions to cocaine, albeit with greater potency and efficacy. The present study sought to characterize behavioral and neurochemical effects of repeated exposure to MDPV alone and in combination with cocaine. Male Sprague-Dawley rats were randomly assigned to one the following four treatments, administered once daily for seven days: 1 mg/kg MDPV, 5 mg/kg cocaine, 1 mg/kg MDPV +5 mg/kg cocaine, or saline...
October 14, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29030166/mdpv-and-%C3%AE-pvp-use-in-humans-the-twisted-sisters
#8
REVIEW
Laurent Karila, Geneviève Lafaye, Amandine Scocard, Olivier Cottencin, Amine Benyamina
The new psychoactive substances phenomenon continues to represent a considerable public health challenge. Synthetic cathinones are β-keto amphetamine analogues, also known as legal highs, research chemicals, bath salts. These drugs have surfaced as a popular alternative to other illicit drugs of abuse, such as cocaine, MDMA, and methamphetamine, due to their potent psychostimulant and empathogenic effects. Pyrovalerone cathinones (a-pyrrolidinophenones) form a distinct group of designer cathinones, such as MDPV...
October 10, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28985394/a-validated-method-for-the-detection-of-32-bath-salts-in-oral-fluid
#9
Michelle Williams, Jennifer Martin, Peter Galettis
Workplace drug testing in Australia is usually adherent to one of two standards, AS/NZS 4308:2008 for urine or AS 4760:2006 for oral fluid. These standards prescribe the drugs tested, devices used and testing methodology followed by the testing agency. However, they are not comprehensive and for many years workers have been able to consume novel psychoactive substances to avoid detection and without consequences. Here, we present a validated method for the detection of 32 Synthetic Stimulant and Hallucogenic drugs, commonly sold as bath salts, in oral fluid...
July 14, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28917743/selection-of-an-aptamer-against-muscovy-duck-parvovirus-for-highly-sensitive-rapid-visual-detection-by-label-free-aptasensor
#10
Taofeng Lu, Qin Ma, Wenzhuo Yan, Yuanzhi Wang, Yuanyuan Zhang, Lili Zhao, Hongyan Chen
Muscovy duck parvovirus (MDPV) causes high mortality and morbidity in ducks. This study investigated a novel aptamer-based, label-free aptasensor detection of MDPV. In this study, we developed an ssDNA aptamer using the filtration partition and lambda exonuclease method with an affinity-based monitor and counter-screening process. After 15 rounds of SELEX (systematic evolution of ligands by exponential enrichment), the ssDNA aptamer Apt-10, which specifically bound to MDPV with high affinity (Kd = 467nM) was successfully screened, and the aptamer was also found to be good specific to MDPV...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28910664/the-analysis-of-132-novel-psychoactive-substances-in-human-hair-using-a-single-step-extraction-by-tandem-lc-ms
#11
Vassiliki A Boumba, Matthew Di Rago, Melissa Peka, Olaf H Drummer, Dimitri Gerostamoulos
A rapid LC-MS/MS method for the targeted screening of 132 NPS in hair is described. Drugs include cathinones and synthetic cannabinoids, as well as amphetamine-type stimulants, piperazines and other hallucinogenic compounds. This method utilizes hair pulverization in acidified methanol followed by analysis using liquid chromatography coupled with tandem MS. The limit of detection varied from 0.001 to 0.1ng/mg hair among the various analytes. The method was validated in terms of sensitivity, selectivity, repeatability and stability...
October 2017: Forensic Science International
https://www.readbyqxmd.com/read/28895757/intoxications-in-the-strida-project-involving-a-panorama-of-psychostimulant-pyrovalerone-derivatives-mdpv-copycats
#12
Olof Beck, Matilda Bäckberg, Patrick Signell, Anders Helander
CONTEXT: An increasing number of new psychoactive substances (NPS) of different chemical classes have become available through marketing and sale over the Internet. This report from the Swedish STRIDA project presents the prevalence, laboratory results, and clinical features in intoxications involving 11 stimulant pyrovalerone NPS derivatives over a 5-year period. STUDY DESIGN: Case series of consecutive patients with admitted or suspected intake of NPS presenting to Swedish hospitals for emergency treatment from January 2011 to March 2016...
September 12, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28887185/role-of-monoaminergic-systems-and-ambient-temperature-in-bath-salts-constituent-3-4-methylenedioxypyrovalerone-mdpv-elicited-hyperthermia-and-locomotor-stimulation-in-mice
#13
REVIEW
Brenda M Gannon, Adrian Williamson, Kenner C Rice, William E Fantegrossi
3,4-Methylenedioxypyrovalerone (MDPV) is a common constituent of illicit bath salts products, and in vitro studies implicate monoamine transporters as mediators of its pharmacological effects. Locomotor and thermoregulatory effects of MDPV depend on ambient temperature, so the current studies aimed to gauge the involvement of dopamine (DA), norepinephrine (NE), and serotonin (5-HT) in MDPV-induced locomotor stimulation and hyperthermia in the mouse at different ambient temperatures. Mice were pretreated with the selective 5-HT-reuptake inhibitor fluoxetine (3 mg/kg), the NE-reuptake inhibitor desipramine (3 mg/kg), the DA-reuptake inhibitor bupropion (10 mg/kg), or saline, followed by 10 mg/kg MDPV while thermoregulation and locomotor activity were monitored via radiotelemetry...
September 5, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28884224/transfection-of-embryonated-muscovy-duck-eggs-with-a-recombinant-plasmid-is-suitable-for-rescue-of-infectious-muscovy-duck-parvovirus
#14
Jianye Wang, Yu Huang, Jueyi Ling, Zhixiang Wang, Guoqiang Zhu
For members of the family Parvoviridae, rescue of infectious virus from recombinant plasmid is usually done in cultured cells. In this study, the whole genome of the pathogenic Muscovy duck parvovirus (MDPV) strain YY was cloned into the pBluescript II (SK) vector, generating recombinant plasmid pYY. With the aid of a transfection reagent, pYY plasmid was inoculated into 11-day-old embryonated Muscovy duck eggs via the chorioallantoic membrane route, resulting in the successful rescue of infectious virus and death of the embryos...
December 2017: Archives of Virology
https://www.readbyqxmd.com/read/28882561/locomotor-and-reinforcing-effects-of-pentedrone-pentylone-and-methylone-in-rats
#15
Mehrak Javadi-Paydar, Jacques D Nguyen, Sophia A Vandewater, Tobin J Dickerson, Michael A Taffe
The broad diversity of synthetic cathinone psychostimulant drugs that are available to users complicates research efforts to provide understanding of health risks. Second generation cathinones pentedrone and pentylone are distinguished from each other by the 3,4-methylenedioxy structural motif (which distinguishes methamphetamine from 3,4-methylenedioxymethamphetamine) and each incorporates the α-alkyl chain motif contained in the transporter-inhibitor cathinones (3,4-methylenedioxypyrovalerone (MDPV), α-pyrrolidinopentiophenone (α-PVP)) but not in the monoamine releasers (mephedrone, methylone)...
September 4, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28866386/effects-of-orally-self-administered-bath-salt-constituent-3-4-methylenedioxypyrovalerone-mdpv-in-mice
#16
Brenda M Gannon, Lauren N Russell, Meet S Modi, Kenner C Rice, William E Fantegrossi
Synthetic cathinones in bath salts products are psychostimulant drugs of abuse, and 3,4-methylenedioxypyrovalerone (MDPV) is a common constituent of these products. Oral MDPV has been show to stimulate locomotor activity but reinforcing, locomotor and appetitive stimulus effects of oral MDPV are unknown. Choice procedures evaluated preference for 0.03, 0.10, 0.30, and 1.00mg/mL MDPV solutions versus 0.10mg/mL quinine solution or water. To verify that oral MDPV produced pharmacological effects, locomotor activity was monitored during and after consumption of water, quinine, or MDPV solutions...
October 1, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28844011/the-pharmacokinetics-of-racemic-mdpv-and-its-r-and-s-enantiomers-in-female-and-male-rats
#17
Michael D Hambuchen, Howard P Hendrickson, Melinda G Gunnell, Samantha J McClenahan, Laura E Ewing, Dillon M Gibson, Michael D Berquist, S Michael Owens
BACKGROUND: These studies investigated the serum pharmacokinetic (PK) profile of racemic (3,4)-methylenedioxypyrovalerone [(R,S)-MDPV)] and its (R)- and (S)-enantiomers in female and male Sprague Dawley rats. METHODS: Intravenous (R,S)-MDPV (3 and 5.6mg/kg) and single enantiomer of (R)- and (S)-MDPV (1.5mg/kg) were administered to both sexes for PK studies. Intraperitoneal (ip) bioavailability was determined at 3mg/kg (R,S)-MDPV. Locomotor activity studies were conducted after ip treatment with saline and 0...
October 1, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28815279/evaluation-of-training-dose-in-male-sprague-dawley-rats-trained-to-discriminate-4-methylmethcathinone
#18
Michael D Berquist, Nathyn A Thompson, Lisa E Baker
RATIONALE: Although the synthetic cathinone 4-methylmethcathinone (4-MMC, mephedrone) has been a subject of intensive research investigation, the pharmacological mechanisms involved in its interoceptive stimulus effects have yet to be fully characterized. OBJECTIVE: The present study employed drug discrimination methods in rats to compare the interoceptive stimulus properties of two different training doses of 4-MMC to other substances with similar pharmacological actions...
November 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28811192/relative-reinforcing-effects-of-second-generation-synthetic-cathinones-acquisition-of-self-administration-and-fixed-ratio-dose-response-curves-in-rats
#19
REVIEW
Brenda M Gannon, Kayla I Galindo, Melson P Mesmin, Agnieszka Sulima, Kenner C Rice, Gregory T Collins
"Bath salts" preparations contain synthetic cathinones which interact with monoamine transporters and function as either monoamine uptake inhibitors or releasers. 3,4-Methylenedioxypyrovalerone (MDPV), 3,4-methylenedioxymethcathinone (methylone), and 4-methylmethcathinone (mephedrone) were three of the most common cathinones (i.e., "first-generation" cathinones); however, after the US Drug Enforcement Administration placed them under Schedule I regulations, they were replaced with structurally related cathinones that were not subject to regulations (i...
August 12, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28811141/the-pharmacokinetic-profile-of-synthetic-cathinones-in-a-pregnancy-model
#20
Lauren G Strange, Kerri Kochelek, Robert Keasling, Stacy D Brown, Brooks B Pond
In recent years, the abuse of synthetic cathinones or 'bath salts' has become a major public health concern. Although these compounds were initially sold legally and labeled "not for human consumption", the 'bath salts' are psychostimulants, with similar structures and pharmacologic mechanisms to cocaine, the amphetamines, and 3,4 methylendioxymethamphetamine (MDMA, Molly, or Ecstasy). The reported use of these substances by women of child-bearing age highlights the necessity of studies seeking to delineate risks of prenatal exposure...
August 12, 2017: Neurotoxicology and Teratology
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