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https://www.readbyqxmd.com/read/29154915/cocaine-and-amphetamine-regulated-transcript-peptide-and-calcium-binding-proteins-immunoreactivity-in-the-deep-layers-of-the-superior-colliculus-of-the-guinea-pig-implications-for-multisensory-and-visuomotor-processing
#1
Janusz Najdzion
The superior colliculus (SC) of mammals is a midbrain center, that can be subdivided into the superficial (SCs) and deep layers (SCd). In contrast to the visual SCs, the SCd are involved in multisensory and motor processing. This study investigated the pattern of distribution and colocalization of cocaine- and amphetamine-regulated transcript peptide (CART) and three calcium-binding proteins (CaBPs) i.e. calbindin (CB), calretinin (CR) and parvalbumin (PV) in the SCd of the guinea pig. CART labeling was seen almost exclusively in the neuropil and fibers, which differed in regard to morphology and location...
November 14, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/29154785/a-rapid-enhancement-of-locomotor-sensitization-to-amphetamine-by-estradiol-in-female-rats
#2
Iva B Zovkic, Cheryl M McCormick
Estradiol moderates the effects of drugs of abuse in both humans and rodents. Estradiol's enhancement of behavioral effects resulting from high (>2.5mg/kg) doses of amphetamine is established in rats; there is less evidence for the role of estradiol in locomotor effects elicited by lower doses, which are less aversive, increase incentive motivation, involve different neural mechanisms than higher doses, and often more readily reveal group differences than do higher doses. Further, the extent to which estradiol is required for the induction versus the expression of sensitization is unknown...
November 14, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29154367/effects-of-amphetamine-on-sensorimotor-gating-and-neurocognition-in-antipsychotic-medicated-schizophrenia-patients
#3
Neal R Swerdlow, Savita G Bhakta, Jo A Talledo, Daniel M Franz, Erica L Hughes, Brinda K Rana, Gregory A Light
Prepulse inhibition (PPI) of startle is being explored both as an indicator of target engagement for, and a biomarker predicting sensitivity to, pro-cognitive effects of drugs. We now report the effects of the pro-attentional drug, d-amphetamine, on PPI and neurocognition in antipsychotic-medicated schizophrenia patients and healthy subjects (HS) who were also tested in a targeted cognitive training (TCT) module. 44 HS and 38 schizophrenia patients completed a double-blind, placebo-controlled crossover study of the effects of a single dose of amphetamine (10 mg po) on PPI and MATRICS Consensus Cognitive Battery (MCCB) performance; TCT results were previously reported from 60 of these subjects...
November 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29154364/non-contingent-exposure-to-amphetamine-in-adolescence-recruits-mir-218-to-regulate-dcc-expression-in-the-vta
#4
Santiago Cuesta, José Maria Restrepo-Lozano, Steven Silvestrin, Dominique Nouel, Angélica Torres-Berrio, Lauren M Reynolds, Andreas Arvanitogiannis, Cecilia Flores
The development of the dopamine input to the medial prefrontal cortex occurs during adolescence and is a process that is vulnerable to disruption by stimulant drugs such as amphetamine. We have previously linked the amphetamine-induced disruption of dopamine connectivity and prefrontal cortex maturation during adolescence to the downregulation of the Netrin-1 receptor, DCC, in dopamine neurons. However, how DCC expression in dopamine neurons is itself regulated is completely unknown. MicroRNA (miRNA) regulation of mRNA translation and stability is a prominent mechanism linking environmental events to changes in protein expression...
November 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29152735/6%C3%A2-hz-corneal-kindling-in-mice-triggers-neurobehavioral-comorbidities-accompanied-by-relevant-changes-in-c-fos-immunoreactivity-throughout-the-brain
#5
Giulia Albertini, Laura Walrave, Thomas Demuyser, Ann Massie, Dimitri De Bundel, Ilse Smolders
OBJECTIVE: Besides seizures, patients with epilepsy are affected by a variety of cognitive and psychiatric comorbidities that further impair their quality of life. The present study provides an in-depth characterization of the behavioral alterations induced by 6 Hz corneal kindling. Furthermore, we correlate these behavioral changes to alterations in c-Fos protein expression throughout the brain following kindling. METHODS: Adolescent male Naval Medical Research Institute (NMRI) mice were kindled via repetitive subconvulsive 6 Hz corneal stimulations until they reached the fully kindled state (defined as 10 consecutive generalized seizures)...
November 20, 2017: Epilepsia
https://www.readbyqxmd.com/read/29151005/synthesis-of-a-novel-polymeric-magnetic-solid-phase-extraction-adsorbent-for-selective-extraction-of-amphetamine-from-urine-samples-coupled-with-high-performance-liquid-chromatography
#6
Arezou Taghvimi, Marjan Ghorbani, Hamed Hamishehkar
A novel pH-responsive block copolymer (Poly ethylene glycol-b-poly (N,N-dimethylaminoethylmethacrylate-co-maleic acid) was designed for the decoration and stabilization of magnetic nanoparticles (MNPs) to apply as an efficient magnetic nano adsorbent for extraction of amphetamine (AM) from biological urine samples to be determined by high performance liquid chromatography ultra violet detector (HPLC-UV). Full characterization of the synthesized Polymeric magnetic nanoparticles (PMNPs) were followed by various techniques like Fourier transform infrared (FT-IR) spectroscopy, powder x-ray diffraction (XRD), scanning electron microscopy (SEM), and vibrating sample magnetometer (VSM)...
November 18, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29149481/neuroprotective-effects-of-melatonin-on-amphetamine-induced-dopaminergic-fiber-degeneration-in-the-hippocampus-of-postnatal-rats
#7
Tanawan Leeboonngam, Ratchadaporn Pramong, Kwankanit Sae-Ung, Piyarat Govitrapong, Pansiri Phansuwan-Pujito
Chronic amphetamine (AMPH) abuse leads to damage of the hippocampus, the brain area associated with learning and memory process. Previous results have shown that AMPH-induced dopamine neurotransmitter release, reactive oxygen species formation and degenerative protein aggregation lead to neuronal death. Melatonin, a powerful antioxidant, plays a role as a neuroprotective agent. The objective of this study was to investigate whether the protective effect of melatonin on AMPH-induced hippocampal damage in the postnatal rat acts through the dopaminergic pathway...
November 17, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/29146410/cart-neurons-in-the-arcuate-nucleus-and-lateral-hypothalamic-area-exert-differential-controls-on-energy-homeostasis
#8
Jackie Lau, Aitak Farzi, Yue Qi, Regine Heilbronn, Mario Mietzsch, Yan-Chuan Shi, Herbert Herzog
OBJECTIVE: The cocaine- and amphetamine-regulated transcript (CART) codes for a pivotal neuropeptide important in the control of appetite and energy homeostasis. However, limited understanding exists for the defined effector sites underlying CART function, as discrepant effects of central CART administration have been reported. METHODS: By combining Cart-cre knock-in mice with a Cart adeno-associated viral vector designed using the flip-excision switch (AAV-FLEX) technology, specific reintroduction or overexpression of CART selectively in CART neurons in the arcuate nucleus (Arc) and lateral hypothalamic area (LHA), respectively, was achieved...
November 8, 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29145874/peripheral-immune-tolerance-alleviates-the-intracranial-lipopolysaccharide-injection-induced-neuroinflammation-and-protects-the-dopaminergic-neurons-from-neuroinflammation-related-neurotoxicity
#9
Yang Liu, Xin Xie, Li-Ping Xia, Hong Lv, Fan Lou, Yan Ren, Zhi-Yi He, Xiao-Guang Luo
BACKGROUND: Neuroinflammation plays a critical role in the onset and development of neurodegeneration disorders such as Parkinson's disease. The immune activities of the central nervous system are profoundly affected by peripheral immune activities. Immune tolerance refers to the unresponsiveness of the immune system to continuous or repeated stimulation to avoid excessive inflammation and unnecessary by-stander injury in the face of continuous antigen threat. It has been proved that the immune tolerance could suppress the development of various peripheral inflammation-related diseases...
November 16, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29143945/one-evidence-of-cocaine-and-amphetamine-regulated-transcript-cart-has-the-bidirectional-effects-on-appetite-in-siberian-sturgeon-acipenser-baerii
#10
Xin Zhang, Yundi Gao, Ni Tang, Jinwen Qi, Yuanbing Wu, Jin Hao, Shuyao Wang, Defang Chen, Zhiqiong Li
Cocaine- and amphetamine-regulated transcript (CART), discovered in 1995, with various biological functions, has received much attention recently due to its role in the regulation of appetite in mammals. However, the function of CART on the appetite control in fish species is still not very clear. In this study, Siberian sturgeon (Acipenser baerii Brandt) cart gene was cloned for the first time, and the cart mRNA levels in 11 feeding-related tissues was investigated. The Siberian sturgeon cart gene sequence was 1459 base pairs (bp), including a 3'-terminal untranslated region (3'-UTR) of 39 bp, a 5'-terminal untranslated region (5'-UTR) of 52 bp, and an open reading frame (ORF) of 348 bp encoding 115 amino acids...
November 16, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29136874/a-rapid-detection-method-for-policy-sensitive-amines-real-time-supervision
#11
Haixu Zhang, Jinian Shu, Bo Yang, Peng Zhang, Pengkun Ma
Many organic amines that comprise a benzene ring are policy-sensitive because of their toxicity and links to social harm. However, to date, detection of such compounds mainly relies on offline methods. This study proposes an online pptv (parts per trillion by volume) level of detection method for amines, using the recently-built vacuum ultraviolet photoionization mass spectrometer (VUV-PIMS) combined with a new doping technique. Thus, the dichloromethane doping-assisted photoionization mass spectra of aniline, benzylamine, phenethylamine, amphetamine, and their structural isomers were recorded...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29128711/polysubstance-use-profiles-among-electronic-dance-music-party-attendees-in-new-york-city-and-their-relation-to-use-of-new-psychoactive-substances
#12
Fermín Fernández-Calderón, Charles M Cleland, Joseph J Palamar
BACKGROUND: Electronic Dance Music (EDM) party attendees are often polysubstance users and are at high risk for use of new psychoactive substances (NPS). We sought to identify patterns of use of common illegal drugs among EDM party attendees, sociodemographic correlates, and use of NPS as a function of patterns of use of more common drugs to inform prevention and harm reduction. METHOD: Using time-space-sampling, 1045 individuals aged 18-40 were surveyed entering EDM parties in New York City...
November 4, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/29124985/pharmacotherapy-and-motor-recovery-after-stroke
#13
Luciano Viale, Natalia Paola Catoira, Guillermo Di Girolamo, Claudio Daniel González
Stroke is one of the most prevalent neurological diseases worldwide, especially among the elderly population. There are various mechanisms that enhance motor recovery after a stroke. In clinical practice, we have the opportunity to enhance plasticity by designing specific rehabilitation programs. Areas covered: There are a variety of drugs commonly administered to people after the acute phase of a stroke. These drugs may modify motor performance. Herein reviewed is the evidence concerning motor enhancement or decline in stroke patients, produced by drugs commonly used in rehabilitation settings...
November 10, 2017: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/29119924/deaths-in-the-lesbian-gay-bisexual-and-transgender-united-kingdom-communities-associated-with-ghb-and-precursors
#14
John M Corkery, Barbara Loi, Hugh Claridge, Christine Goodair, Fabrizio Schifano
Background Misuse of gammahydroxybutrate (GHB) and its prodrugs gammabutyrolactone (GBL) and 1,4 butanediol (1,4-BD) has increased greatly since the early 1990s, particularly amongst lesbian, gay, bisexual and transgender (LGBT) individuals in recreational and sexual settings, e.g. 'chemsex'. Objective and method This paper presents an overview of GHB pharmacotoxicology and provides analyses of cases in the LGBT population associated with use of these substances extracted from the UK's National Programme on Substance Abuse Deaths database, to which notification is voluntary...
November 8, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/29118856/sleep-disturbances-and-memory-impairment-among-pregnant-women-consuming-khat-an-under-recognized-problem
#15
Md Dilshad Manzar, Mohammed Salahuddin, Peter Sony, Tarekegn Tesfaye Maru, Seithikurippu R Pandi-Perumal, Adam Moscovitch, Ahmed S Bahammam
Khat (Catha edulis) is a evergreen flowering shrub that is cultivated at high altitudes, especially in East Africa and the southwest of the Arabian Peninsula. The plant contains alkaloids, of which cathinone and cathine have structural similarity and pharmacological action similar to amphetamines. The leaves are, therefore, consumed in some regions as a psychoactive stimulant due to cultural beliefs and misperceptions on the health benefits of khat consumption. This resulted in a growing prevalence of khat consumption among pregnant women...
October 2017: Annals of Thoracic Medicine
https://www.readbyqxmd.com/read/29117432/gas-chromatography-mass-spectrometry-gc-ms-for-identification-of-designer-stimulants-including-2c-amines-nbome-compounds-and-cathinones-in-urine
#16
Hemamalini Ketha, Milad Webb, Larry Clayton, Sean Li
Phenethylamine derivatives are being increasingly exploited for recreational use as "designer" stimulants designed to mimic psychostimulant properties of amphetamine or other illicit substances like 3,4-methylenedioxymethamphetamine (MDMA [ecstasy]). Clandestine operations meticulously design phenethylamines so the user can bypass legal action when detected, as many of these are yet to be regulated by government authorities. Substituted phenethylamines or 2C amines, N-methoxybenzyl derivatives of the corresponding 2C amines commonly known as NBOMe compounds, and cathinones are among the most commonly abused phenethylamines...
November 8, 2017: Current Protocols in Toxicology
https://www.readbyqxmd.com/read/29117206/cannabis-alcohol-and-fatal-road-accidents
#17
Jean-Louis Martin, Blandine Gadegbeku, Dan Wu, Vivian Viallon, Bernard Laumon
INTRODUCTION: This research aims to estimate the relative risks of responsibility for a fatal accident linked to driving under the influence of cannabis or alcohol, the prevalence of these influences among drivers and the corresponding attributable risk ratios. A secondary goal is to estimate the same items for three other groups of illicit drugs (amphetamines, cocaine and opiates), and to compare the results to a similar study carried out in France between 2001 and 2003. METHODOLOGY: Police procedures for fatal accidents in Metropolitan France during 2011 were analyzed and 300 characteristics encoded to provide a database of 4,059 drivers...
2017: PloS One
https://www.readbyqxmd.com/read/29116599/the-class-a-gpcr-dopamine-d2-receptor-forms-transient-dimers-stabilized-by-agonists-detection-by-single-molecule-tracking
#18
Rinshi S Kasai, Shuichi V Ito, Ryo M Awane, Takahiro K Fujiwara, Akihiro Kusumi
Whether class-A G-protein coupled receptors (GPCRs) exist and work as monomers or dimers has drawn extensive attention. A class-A GPCR dopamine D2 receptor (D2R) is involved in many physiological and pathological processes and diseases, indicating its critical role in proper functioning of neuronal circuits. In particular, D2R homodimers might play key roles in schizophrenia development and amphetamine-induced psychosis. Here, using single-molecule imaging, we directly tracked single D2R molecules in the plasma membrane at a physiological temperature of 37 °C, and unequivocally determined that D2R forms transient dimers with a lifetime of 68 ms in its resting state...
November 7, 2017: Cell Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29115641/traumatic-stress-affects-alcohol%C3%A2-drinking-behavior-through-cocaine%C3%A2-and-amphetamine%C3%A2-regulated-transcript-55%C3%A2-102-in-the-paraventricular-nucleus-in-rats
#19
Jie Liu, Xue-Ming Hu, Xiao-Jian Li, Hui Zhao
Cumulative evidence has suggested an association between stress and alcohol self‑administration; however, less is known about the role of traumatic stress in alcohol drinking behavior. It has been reported that cocaine‑ and amphetamine‑regulated transcript (CART) 55‑102 may be involved in mediating stress responses and regulating reward and reinforcement. The aim of the present study was to evaluate the role of CART 55‑102 in alcohol drinking behavior of rats in the presence or absence of traumatic stress...
November 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29113955/treatment-of-fatigue-with-methylphenidate-modafinil-and-amantadine-in-multiple-sclerosis-triumphant-ms-study-design-for-a-pragmatic-randomized-double-blind-crossover-clinical-trial
#20
Bardia Nourbakhsh, Nisha Revirajan, Emmanuelle Waubant
BACKGROUND: Fatigue is the most common symptom of multiple sclerosis (MS). Amantadine, modafinil and amphetamine-like stimulants are commonly used in clinical practice for treatment of fatigue; however, the evidence supporting their effectiveness is sparse and conflicting. OBJECTIVE: To describe the design of a trial study funded by Patient-Centered Outcome Research Institute (PCORI) that will compare the efficacy of commonly used fatigue medications in patients with MS...
November 4, 2017: Contemporary Clinical Trials
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