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Kotlinska JH, Grochecki P, Michalak A, Pankowska A, Kochalska K, Suder P, Ner-Kluza J, Matosiuk D, Marszalek-Grabska M. Neonatal Maternal Separation Induces Sexual Dimorphism in Brain Development: The Influence on Amino Acid Levels and Cognitive Disorders. Biomolecules 2023; 13:1449. [PMID: 37892131 PMCID: PMC10605115 DOI: 10.3390/biom13101449] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/09/2023] [Accepted: 09/23/2023] [Indexed: 10/29/2023] Open
Abstract
Repeated maternal separation (MS) is a useful experimental model in rodents for studying the long-term influence of early-life stress on brain neurophysiology. In our work, we assessed the effect of repeated MS (postnatal day (PND)1-21, 180 min/day) on the postnatal development of rat brain regions involved in memory using proton magnetic resonance spectroscopy (1HMRS) for tissue volume and the level of amino acids such as glutamate, aspartate, glutamine, glycine and gamma-aminobutyric acid (GABA) in the hippocampus. We assessed whether these effects are sex dependent. We also use novel object recognition (NOR) task to examine the effect of MS on memory and the effect of ethanol on it. Finally, we attempted to ameliorate postnatal stress-induced memory deficits by using VU-29, a positive allosteric modulator (PAM) of the metabotropic glutamate type 5 (mGlu5) receptor. In males, we noted deficits in the levels of glutamate, glycine and glutamine and increases in GABA in the hippocampus. In addition, the values of perirhinal cortex, prefrontal cortex and insular cortex and CA3 were decreased in these animals. MS females, in contrast, demonstrated significant increase in glutamate levels and decrease in GABA levels in the hippocampus. Here, the CA1 values alone were increased. VU-29 administration ameliorated these cognitive deficits. Thus, MS stress disturbs amino acids levels mainly in the hippocampus of adult male rats, and enhancement of glutamate neurotransmission reversed recognition memory deficits in these animals.
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Affiliation(s)
- Jolanta H. Kotlinska
- Department of Pharmacology and Pharmacodynamics, Medical University, Chodzki 4A, 20-093 Lublin, Poland;
| | - Pawel Grochecki
- Department of Pharmacology and Pharmacodynamics, Medical University, Chodzki 4A, 20-093 Lublin, Poland;
| | - Agnieszka Michalak
- Independent Laboratory of Behavioral Studies, Medical University, Chodzki 4A, 20-093 Lublin, Poland;
| | - Anna Pankowska
- Department of Radiography, Medical University, Staszica 16, 20-081 Lublin, Poland; (A.P.); (K.K.)
| | - Katarzyna Kochalska
- Department of Radiography, Medical University, Staszica 16, 20-081 Lublin, Poland; (A.P.); (K.K.)
| | - Piotr Suder
- Department of Analytical Chemistry and Biochemistry, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Krakow, Poland; (P.S.); (J.N.-K.)
| | - Joanna Ner-Kluza
- Department of Analytical Chemistry and Biochemistry, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Krakow, Poland; (P.S.); (J.N.-K.)
| | - Dariusz Matosiuk
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modelling Lab, Medical University, Chodzki 4A, 20-093 Lublin, Poland;
| | - Marta Marszalek-Grabska
- Department of Experimental and Clinical Pharmacology, Medical University, Jaczewskiego 8B, 20-090 Lublin, Poland;
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2
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Taskiran SY, Taskiran M, Unal G, Golgeli A. Group I mGluRs positive allosteric modulators improved schizophrenia-related behavioral and molecular deficits in the Poly I:C rat model. Pharmacol Biochem Behav 2023:173593. [PMID: 37390974 DOI: 10.1016/j.pbb.2023.173593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/16/2023] [Accepted: 06/26/2023] [Indexed: 07/02/2023]
Abstract
RATIONALE Maternal polyinosinic-polycytidylic acid (Poly I:C) exposure leads to an increase in various proinflammatory cytokines and causes schizophrenia-like symptoms in offspring. In recent years, group I metabotropic glutamate receptors (mGluRs) have emerged as a potential target in the pathophysiology of schizophrenia. OBJECTIVES The aim of our study was to investigate the behavioral and molecular changes by using the mGlu1 receptor positive allosteric modulator (PAM) agent RO 67-7476, and the negative allosteric modulator (NAM) agent JNJ 16259685 and the mGlu5 receptor PAM agent VU-29, and NAM agent fenobam in the Poly I:C-induced schizophrenia model in rats. METHODS Female Wistar albino rats were treated with Poly I:C on day 14 of gestation after mating. On the postnatal day (PND) 35, 56 and 84, behavioral tests were performed in the male offspring. On the PND84, brain tissue was collected and the level of proinflammatory cytokines was determined by ELISA method. RESULTS Poly I:C caused impairments in all behavioral tests and increased the levels of proinflammatory cytokines. While PAM agents caused significant improvements in prepulse inhibition (PPI), novel object recognition (NOR), spontaneous alternation and reference memory tests, they brought the levels of proinflammatory cytokines closer to the control group. NAM agents were ineffective on behavioral tests. It was observed that PAM agents significantly improved Poly I:C-induced disruption in behavioral and molecular analyses. CONCLUSIONS These results suggest that PAM agents, particularly the mGlu5 receptor VU-29, are also promising and could be a potential target in schizophrenia.
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Affiliation(s)
| | - Mehmet Taskiran
- Department of Biology, Faculty of Science, Erciyes University, Kayseri, Turkey.
| | - Gokhan Unal
- Department of Pharmacology, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey.
| | - Asuman Golgeli
- Department of Physiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
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Chentsova VO, Bravo AJ, Pilatti A, Pautassi RM, Mezquita L, Hogarth L, Team CCAS. Age of First Use, Age of Habitual Use, and Problematic Alcohol Use: a Cross-cultural Examination Among Young Adults in Seven Countries. Int J Ment Health Addict 2023. [DOI: 10.1007/s11469-023-01016-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
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4
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Witkin JM, Pandey KP, Smith JL. Clinical investigations of compounds targeting metabotropic glutamate receptors. Pharmacol Biochem Behav 2022; 219:173446. [PMID: 35987339 DOI: 10.1016/j.pbb.2022.173446] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/22/2022] [Accepted: 08/08/2022] [Indexed: 11/15/2022]
Abstract
Pharmacological modulation of glutamate has long been considered to be of immense therapeutic utility. The metabotropic glutamate receptors (mGluRs) are potential targets for safely altering glutamate-driven excitation. Data support the potential therapeutic use of mGluR modulators in the treatment of anxiety, depression, schizophrenia, and other psychiatric disorders, pain, epilepsy, as well as neurodegenerative and neurodevelopmental disorders. For each of the three mGluR groups, compounds have been constructed that produce either potentiation or functional blockade. PET ligands for mGlu5Rs have been studied in a range of patient populations and several mGlu5R antagonists have been tested for potential efficacy in patients including mavoglurant, diploglurant, basimglurant, GET 73, and ADX10059. Efficacy with mGlu5R antagonists has been reported in trials with patients with gastroesophageal reflux disease; data from patients with Parkinson's disease or Fragile X syndrome have not been as robust as hoped. Fenobam was approved for use as an anxiolytic prior to its recognition as an mGlu5R antagonist. mGlu2/3R agonists (pomaglumated methionil) and mGlu2R agonists (JNJ-40411813, AZD 8529, and LY2979165) have been studied in patients with schizophrenia with promising but mixed results. Antagonists of mGlu2/3Rs (decoglurant and TS-161) have been studied in depression where TS-161 has advanced into a planned Phase 2 study in treatment-resistant depression. The Group III mGluRs are the least developed of the mGluR receptor targets. The mGlu4R potentiator, foliglurax, did not meet its primary endpoint in patients with Parkinson's disease. Ongoing efforts to develop mGluR-targeted compounds continue to promise these glutamate modulators as medicines for psychiatric and neurological disorders.
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Affiliation(s)
- Jeffrey M Witkin
- Laboratory of Antiepileptic Drug Discovery, Ascension St. Vincent, Indianapolis, IN, USA; Department of Chemistry & Biochemistry, Milwaukee Institute of Drug Discovery, University of Wisconsin-Milwaukee, Milwaukee, WI, USA; RespireRx Pharmaceuticals Inc, Glen Rock, NJ, USA.
| | - Kamal P Pandey
- Department of Chemistry & Biochemistry, Milwaukee Institute of Drug Discovery, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Jodi L Smith
- Laboratory of Antiepileptic Drug Discovery, Ascension St. Vincent, Indianapolis, IN, USA
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Morningstar MD, Barnett WH, Goodlett CR, Kuznetsov A, Lapish CC. Understanding ethanol's acute effects on medial prefrontal cortex neural activity using state-space approaches. Neuropharmacology 2021; 198:108780. [PMID: 34480911 PMCID: PMC8488975 DOI: 10.1016/j.neuropharm.2021.108780] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/10/2021] [Accepted: 08/30/2021] [Indexed: 12/22/2022]
Abstract
Acute ethanol (EtOH) intoxication results in several maladaptive behaviors that may be attributable, in part, to the effects of EtOH on neural activity in medial prefrontal cortex (mPFC). The acute effects of EtOH on mPFC function have been largely described as inhibitory. However, translating these observations on function into a mechanism capable of delineating acute EtOH's effects on behavior has proven difficult. This review highlights the role of acute EtOH on electrophysiological measurements of mPFC function and proposes that interpreting these changes through the lens of dynamical systems theory is critical to understand the mechanisms that mediate the effects of EtOH intoxication on behavior. Specifically, the present review posits that the effects of EtOH on mPFC N-methyl-d-aspartate (NMDA) receptors are critical for the expression of impaired behavior following EtOH consumption. This hypothesis is based on the observation that recurrent activity in cortical networks is supported by NMDA receptors, and, when disrupted, may lead to impairments in cognitive function. To evaluate this hypothesis, we discuss the representation of mPFC neural activity in low-dimensional, dynamic state spaces. This approach has proven useful for identifying the underlying computations necessary for the production of behavior. Ultimately, we hypothesize that EtOH-related alterations to NMDA receptor function produces alterations that can be effectively conceptualized as impairments in attractor dynamics and provides insight into how acute EtOH disrupts forms of cognition that rely on mPFC function. This article is part of the special Issue on 'Neurocircuitry Modulating Drug and Alcohol Abuse'.
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Affiliation(s)
| | - William H Barnett
- Indiana University-Purdue University Indianapolis, Department of Psychology, USA
| | - Charles R Goodlett
- Indiana University-Purdue University Indianapolis, Department of Psychology, USA; Indiana University School of Medicine, Stark Neurosciences, USA
| | - Alexey Kuznetsov
- Indiana University-Purdue University Indianapolis, Department of Mathematics, USA; Indiana University School of Medicine, Stark Neurosciences, USA
| | - Christopher C Lapish
- Indiana University-Purdue University Indianapolis, Department of Psychology, USA; Indiana University School of Medicine, Stark Neurosciences, USA
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Lopatynska-Mazurek M, Pankowska A, Gibula-Tarlowska E, Pietura R, Kotlinska JH. Rapamycin Improves Recognition Memory and Normalizes Amino-Acids and Amines Levels in the Hippocampal Dentate Gyrus in Adult Rats Exposed to Ethanol during the Neonatal Period. Biomolecules 2021; 11:362. [PMID: 33673489 PMCID: PMC7997340 DOI: 10.3390/biom11030362] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/21/2021] [Accepted: 02/24/2021] [Indexed: 12/19/2022] Open
Abstract
The mammalian target of rapamycin (mTOR), a serine/ threonine kinase, is implicated in synaptic plasticity by controlling protein synthesis. Research suggests that ethanol exposure during pregnancy alters the mTOR signaling pathway in the fetal hippocampus. Thus, we investigated the influence of pre-treatment with rapamycin, an mTORC1 inhibitor, on the development of recognition memory deficits in adult rats that were neonatally exposed to ethanol. In the study, male and female rat pups received ethanol (5 g/kg/day) by intragastric intubation at postanatal day (PND 4-9), an equivalent to the third trimester of human pregnancy. Rapamycin (3 and 10 mg/kg) was given intraperitoneally before every ethanol administration. Short- and long-term recognition memory was assessed in the novel object recognition (NOR) task in adult (PND 59/60) rats. Locomotor activity and anxiety-like behavior were also evaluated to exclude the influence of such behavior on the outcome of the memory task. Moreover, the effects of rapamycin pre-treatment during neonatal ethanol exposure on the content of amino-acids and amines essential for the proper development of cognitive function in the dentate gyrus (DG) of the hippocampus was evaluated using proton magnetic resonance spectroscopy (1H MRS) in male adult (PND 60) rats. Our results show the deleterious effect of ethanol given to neonatal rats on long-term recognition memory in adults. The effect was more pronounced in male rather than female rats. Rapamycin reversed this ethanol-induced memory impairment and normalized the levels of amino acids and amines in the DG. This suggests the involvement of mTORC1 in the deleterious effect of ethanol on the developing brain.
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Affiliation(s)
- Malgorzata Lopatynska-Mazurek
- Department of Pharmacology and Pharmacodynamics, Medical University, Lublin, 20-059 Lublin, Poland; (M.L.-M.); (E.G.-T.)
| | - Anna Pankowska
- Department of Radiography, Medical University, Lublin, 20-081 Lublin, Poland; (A.P.); (R.P.)
| | - Ewa Gibula-Tarlowska
- Department of Pharmacology and Pharmacodynamics, Medical University, Lublin, 20-059 Lublin, Poland; (M.L.-M.); (E.G.-T.)
| | - Radoslaw Pietura
- Department of Radiography, Medical University, Lublin, 20-081 Lublin, Poland; (A.P.); (R.P.)
| | - Jolanta H. Kotlinska
- Department of Pharmacology and Pharmacodynamics, Medical University, Lublin, 20-059 Lublin, Poland; (M.L.-M.); (E.G.-T.)
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Zhao MJ, Wang MY, Ma L, Ahmad KA, Wang YX. Bulleyaconitine A Inhibits Morphine-Induced Withdrawal Symptoms, Conditioned Place Preference, and Locomotor Sensitization Via Microglial Dynorphin A Expression. Front Pharmacol 2021; 12:620926. [PMID: 33716748 PMCID: PMC7953057 DOI: 10.3389/fphar.2021.620926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 01/12/2021] [Indexed: 11/25/2022] Open
Abstract
Bulleyaconitine A (BAA), a C19-diterpenoid alkaloid, has been prescribed as a nonnarcotic analgesic to treat chronic pain over four decades in China. The present study investigated its inhibition in morphine-induced withdrawal symptoms, conditioned place preference (CPP) and locomotor sensitization, and then explored the underlying mechanisms of actions. Multiple daily injections of morphine but not BAA up to 300 μg/kg/day into mice evoked naloxone-induced withdrawal symptoms (i.e., shakes, jumps, genital licks, fecal excretion and body weight loss), CPP expression, and locomotor sensitization. Single subcutaneous BAA injection (30–300 μg/kg) dose-dependently and completely attenuated morphine-induced withdrawal symptoms, with ED50 values of 74.4 and 105.8 μg/kg in shakes and body weight loss, respectively. Subcutaneous BAA (300 μg/kg) also totally alleviated morphine-induced CPP acquisition and expression and locomotor sensitization. Furthermore, subcutaneous BAA injection also specifically stimulated dynorphin A expression in microglia but not astrocytes or neurons in nucleus accumbens (NAc) and hippocampal, measured for gene and protein expression and double immunofluorescence staining. In addition, subcutaneous BAA-inhibited morphine-induced withdrawal symptoms and CPP expression were totally blocked by the microglial metabolic inhibitor minocycline, dynorphin A antiserum, or specific KOR antagonist GNTI, given intracerebroventricularly. These results, for the first time, illustrate that BAA attenuates morphine-induced withdrawal symptoms, CPP expression, and locomotor sensitization by stimulation of microglial dynorphin A expression in the brain, suggesting that BAA may be a potential candidate for treatment of opioids-induced physical dependence and addiction.
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Affiliation(s)
- Meng-Jing Zhao
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai, China
| | - Mi-Ya Wang
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai, China
| | - Le Ma
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai, China
| | - Khalil Ali Ahmad
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai, China
| | - Yong-Xiang Wang
- King's Lab, Shanghai Jiao Tong University School of Pharmacy, Shanghai, China
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Effects of the Positive Allosteric Modulator of Metabotropic Glutamate Receptor 5, VU-29, on Maintenance Association between Environmental Cues and Rewarding Properties of Ethanol in Rats. Biomolecules 2020; 10:biom10050793. [PMID: 32443872 PMCID: PMC7277181 DOI: 10.3390/biom10050793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 12/28/2022] Open
Abstract
: Metabotropic glutamate subtype 5 (mGlu5) receptors are implicated in various forms of synaptic plasticity, including drugs of abuse. In drug-addicted individuals, associative memories can drive relapse to drug use. The present study investigated the potential of the mGlu5 receptor positive allosteric modulator (PAM), VU-29 (30 mg/kg, i.p.), to inhibit the maintenance of a learned association between ethanol and environmental context by using conditioned place preference (CPP) in rats. The ethanol-CPP was established by the administration of ethanol (1.0 g/kg, i.p. × 10 days) using an unbiased procedure. Following ethanol conditioning, VU-29 was administered at various post-conditioning times (ethanol free state at the home cage) to ascertain if there was a temporal window during which VU-29 would be effective. Our experiments indicated that VU-29 did not affect the expression of ethanol-induced CPP when it was given over two post-conditioning days. However, the expression of ethanol-CPP was inhibited by 10-day home cage administration of VU-29, but not by first 2-day or last 2-day injection of VU-29 during the 10-day period. These findings reveal that VU-29 can inhibit the maintenance of ethanol-induced CPP, and that treatment duration contributes to this effect of VU-29. Furthermore, VU-29 effect was reversed by pretreatment with either MTEP (the mGlu5 receptor antagonist), or MK-801 (the N-methyl-D-aspartate-NMDA receptor antagonist). Thus, the inhibitory effect of VU-29 is dependent on the functional interaction between mGlu5 and NMDA receptors. Because a reduction in ethanol-associated cues can reduce relapse, mGlu5 receptor PAM would be useful for therapy of alcoholism. Future research is required to confirm the current findings.
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9
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Salguero A, Suarez A, Luque M, Ruiz-Leyva L, Cendán CM, Morón I, Pautassi RM. Binge-Like, Naloxone-Sensitive, Voluntary Ethanol Intake at Adolescence Is Greater Than at Adulthood, but Does Not Exacerbate Subsequent Two-Bottle Choice Drinking. Front Behav Neurosci 2020; 14:50. [PMID: 32327981 PMCID: PMC7161160 DOI: 10.3389/fnbeh.2020.00050] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 03/19/2020] [Indexed: 12/31/2022] Open
Abstract
The present study assessed the effects of ethanol exposure during adolescence or adulthood. We exposed Wistar rats, males or females, to self-administered 8–10% (v/v) ethanol (BINGE group) during the first 2 h of the dark cycle, three times a week (Monday, Wednesday, and Friday) during postnatal days (PDs) 32–54 or 72–94 (adolescent and adults, respectively). During this period, controls were only handled, and a third (IP) condition was given ethanol intraperitoneal administrations, three times a week (Monday, Wednesday, and Friday), at doses that matched those self-administered by the BINGE group. The rats were tested for ethanol intake and preference in a two-bottle (24 h long) choice test, shortly before (PD 30 or 70) and shortly after (PD 56 or 96) exposure to the binge or intraperitoneal protocol; and then tested for free-choice drinking during late adulthood (PDs 120–139) in intermittent two-bottle intake tests. Binge drinking was significantly greater in adolescents vs. adults, and was blocked by naloxone (5.0 mg/kg) administered immediately before the binge session. Mean blood ethanol levels (mg/dl) at termination of binge session 3 were 60.82 ± 22.39. Ethanol exposure at adolescence, but not at adulthood, significantly reduced exploration of an open field-like chamber and significantly increased shelter-seeking behavior in the multivariate concentric square field. The rats that had been initially exposed to ethanol at adolescence drank, during the intake tests conducted at adulthood, significantly more than those that had their first experience with ethanol at adulthood, an effect that was similar among BINGE, IP and control groups. The study indicates that binge ethanol drinking is greater in adolescent that in adults and is associated with heightened ethanol intake at adulthood. Preventing alcohol access to adolescents should reduce the likelihood of problematic alcohol use or alcohol-related consequences.
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Affiliation(s)
- Agustín Salguero
- Instituto de Investigación Médica M. y M. Ferreyra, INIMEC-CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina.,Facultad de Psicología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Andrea Suarez
- Instituto de Investigación Médica M. y M. Ferreyra, INIMEC-CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Maribel Luque
- Instituto de Investigación Médica M. y M. Ferreyra, INIMEC-CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina.,Facultad de Psicología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - L Ruiz-Leyva
- Department of Pharmacology, Faculty of Medicine, University of Granada, Granada, Spain.,Institute of Neuroscience, Biomedical Research Center (CIBM), University of Granada, Granada, Spain.,Biosanitary Research Institute (IBS), University Hospital Complex of Granada, Granada, Spain
| | - Cruz Miguel Cendán
- Department of Pharmacology, Faculty of Medicine, University of Granada, Granada, Spain.,Institute of Neuroscience, Biomedical Research Center (CIBM), University of Granada, Granada, Spain.,Biosanitary Research Institute (IBS), University Hospital Complex of Granada, Granada, Spain
| | - Ignacio Morón
- Department of Psychobiology and Research Center for Mind, Brain, and Behavior (CIMCYC), University of Granada, Faculty of Psychology, Granada, Spain
| | - Ricardo Marcos Pautassi
- Instituto de Investigación Médica M. y M. Ferreyra, INIMEC-CONICET-Universidad Nacional de Córdoba, Córdoba, Argentina.,Facultad de Psicología, Universidad Nacional de Córdoba, Córdoba, Argentina
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Hansen AW, Almeida FB, Bandiera S, Pulcinelli RR, Caletti G, Agnes G, Fernandes de Paula L, Nietiedt NA, Nin MS, Tannhauser Barros HM, Gomez R. Correlations between subunits of GABA A and NMDA receptors after chronic alcohol treatment or withdrawal, and the effect of taurine in the hippocampus of rats. Alcohol 2020; 82:63-70. [PMID: 31473305 DOI: 10.1016/j.alcohol.2019.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 08/15/2019] [Accepted: 08/19/2019] [Indexed: 11/18/2022]
Abstract
Chronic use of alcohol and its withdrawal impairs the delicate balance between GABAergic and glutamatergic systems. This imbalance includes changes in GABA receptors - importantly in GABAA subtypes - and glutamate receptors, especially in NMDA subtypes. A better comprehension of the different roles of GABAAR and NMDAR subunits could be helpful to define new strategies to counteract the deleterious effects observed during alcohol withdrawal. Taurine, a sulfonated amino acid, has been proposed to attenuate alcohol withdrawal symptoms due to its neuromodulatory properties. In this study, we evaluated the correlations between GABAAR and NMDAR subunits in the hippocampus of rats chronically treated with alcohol or in alcohol withdrawal, and the effects of taurine treatment on these parameters. Male Wistar rats received alcohol (2 g/kg) or water by oral gavage (control), 2 × /day, for 28 days. From day 29 to day 33, withdrawal rats received water instead of alcohol and all groups were reallocated to receive 100 mg/kg taurine or saline intraperitoneally (i.p.), once a day. On day 34, rats were euthanized and the hippocampus was dissected for GABAAR α1, α4, δ, and γ2 and NMDAR GluN2A and GluN2B subunits mRNA expression determination by RT qPCR. There were no differences between groups in the studied GABAAR and NMDA subunits. However, we observed a correlation of α1 and γ2 subunits induced by taurine, while in the alcohol group there was a correlation between α4 and GluN2A. In the group treated with alcohol and taurine, we observed an extra correlation, between α1 and GluN2A. After 5 days of withdrawal, a correlation observed in the control group, between δ and GluN2A, was reestablished. The correlation found between subunits suggests a neuroadaptation of GABAergic and glutamatergic systems in withdrawal rats. Results from this study contribute to the elucidation of the mechanisms beyond neuroadaptations observed in alcohol use and withdrawal.
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Affiliation(s)
- Alana Witt Hansen
- Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica, Laboratório de Álcool e Tabaco (LAT), Universidade Federal do Rio Grande do Sul - UFRGS, Sarmento Leite, 500, 90050-170, Porto Alegre, RS, Brazil.
| | - Felipe Borges Almeida
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Sarmento Leite, 245, 90050-170, Porto Alegre, RS, Brazil
| | - Solange Bandiera
- Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica, Laboratório de Álcool e Tabaco (LAT), Universidade Federal do Rio Grande do Sul - UFRGS, Sarmento Leite, 500, 90050-170, Porto Alegre, RS, Brazil
| | - Rianne Remus Pulcinelli
- Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica, Laboratório de Álcool e Tabaco (LAT), Universidade Federal do Rio Grande do Sul - UFRGS, Sarmento Leite, 500, 90050-170, Porto Alegre, RS, Brazil
| | - Greice Caletti
- Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica, Laboratório de Álcool e Tabaco (LAT), Universidade Federal do Rio Grande do Sul - UFRGS, Sarmento Leite, 500, 90050-170, Porto Alegre, RS, Brazil
| | - Grasiela Agnes
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Sarmento Leite, 245, 90050-170, Porto Alegre, RS, Brazil
| | - Leonardo Fernandes de Paula
- Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica, Laboratório de Álcool e Tabaco (LAT), Universidade Federal do Rio Grande do Sul - UFRGS, Sarmento Leite, 500, 90050-170, Porto Alegre, RS, Brazil
| | - Natália Azuaga Nietiedt
- Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica, Laboratório de Álcool e Tabaco (LAT), Universidade Federal do Rio Grande do Sul - UFRGS, Sarmento Leite, 500, 90050-170, Porto Alegre, RS, Brazil
| | - Maurício Schüler Nin
- Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica, Laboratório de Álcool e Tabaco (LAT), Universidade Federal do Rio Grande do Sul - UFRGS, Sarmento Leite, 500, 90050-170, Porto Alegre, RS, Brazil; Centro Universitário Metodista do IPA, Cel. Joaquim Pedro Salgado, 80, 90420-060, Porto Alegre, RS, Brazil
| | - Helena Maria Tannhauser Barros
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Sarmento Leite, 245, 90050-170, Porto Alegre, RS, Brazil
| | - Rosane Gomez
- Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica, Laboratório de Álcool e Tabaco (LAT), Universidade Federal do Rio Grande do Sul - UFRGS, Sarmento Leite, 500, 90050-170, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Sarmento Leite, 245, 90050-170, Porto Alegre, RS, Brazil
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11
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Müller Herde A, Mihov Y, Krämer SD, Mu L, Adamantidis A, Ametamey SM, Hasler G. Chronic Nicotine Exposure Alters Metabotropic Glutamate Receptor 5: Longitudinal PET Study and Behavioural Assessment in Rats. Neurotox Res 2019; 36:806-816. [PMID: 31119680 DOI: 10.1007/s12640-019-00055-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/22/2019] [Accepted: 04/26/2019] [Indexed: 12/13/2022]
Abstract
Using positron emission tomography (PET), a profound alteration of the metabotropic glutamate receptor 5 (mGluR5) was found in human smoking addiction and abstinence. As human PET data either reflect the impact of chronic nicotine exposure or a pre-existing vulnerability to nicotine addiction, we designed a preclinical, longitudinal study to investigate the effect of chronic nicotine exposure on mGluR5 with the novel radiotracer [18F]PSS232 using PET. Twelve male dark Agouti rats at the age of 6 weeks were assigned randomly to three groups. From day 0 to day 250 the groups received 0 mg/L, 4 mg/L, or 8 mg/L nicotine solution in the drinking water. From day 250 to 320 all groups received nicotine-free drinking water. PET scans with [18F]PSS232 were performed in all animals on days 0, 250, and 320. To assess locomotion, seven tests in square open field arenas were carried out 72 days after the last PET scan. During the first four tests, rats received 0 mg/L nicotine and for the last three tests 4 mg/L nicotine in the drinking water. After 250 days of nicotine consumption [18F]PSS232 binding was reduced in the striatum, hippocampus, thalamus, and midbrain. At day 320, after nicotine withdrawal, [18F]PSS232 binding increased. These effects were more pronounced in the 4 mg/L nicotine group. Chronic administration of nicotine through the drinking water reduced exploratory behaviour. This preliminary longitudinal PET study demonstrates that chronic nicotine administration alters behaviour and mGluR5 availability. Chronic nicotine administration leads to decreased [18F]PSS232 binding which normalizes after prolonged nicotine withdrawal.
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Affiliation(s)
- Adrienne Müller Herde
- Center for Radiopharmaceutical Sciences of ETH, PSI, and USZ, Department of Chemistry and Applied Biosciences of ETH, 8093, Zurich, Switzerland
| | - Yoan Mihov
- Translational Research Center, University Hospital of Psychiatry, University of Bern, 3000, Bern 60, Switzerland
| | - Stefanie D Krämer
- Center for Radiopharmaceutical Sciences of ETH, PSI, and USZ, Department of Chemistry and Applied Biosciences of ETH, 8093, Zurich, Switzerland
| | - Linjing Mu
- Department of Nuclear Medicine, University Hospital Zurich, Center for Radiopharmaceutical Sciences of ETH, PSI, and USZ, 8091, Zurich, Switzerland
| | - Antoine Adamantidis
- Department of Biomedical Research, Inselspital University Hospital, University of Bern, 3000, Bern, Switzerland
- Centre for Experimental Neurology, Department of Neurology, Inselspital University Hospital, University of Bern, Bern, Switzerland
| | - Simon M Ametamey
- Center for Radiopharmaceutical Sciences of ETH, PSI, and USZ, Department of Chemistry and Applied Biosciences of ETH, 8093, Zurich, Switzerland
| | - Gregor Hasler
- Psychiatry Research Unit, University of Fribourg, Chemin du Cardinal-Journet 3, Villars-sur-Glâne, 1752, Fribourg, Switzerland.
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12
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Bernstein DL, Nayak SU, Oliver CF, Rawls SM, Rom S. Methylenedioxypyrovalerone (MDPV) impairs working memory and alters patterns of dopamine signaling in mesocorticolimbic substrates. Neurosci Res 2019; 155:56-62. [PMID: 31302200 DOI: 10.1016/j.neures.2019.07.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 06/30/2019] [Accepted: 07/10/2019] [Indexed: 02/06/2023]
Abstract
Knowledge remains limited about how chronic cathinone exposure impacts dopamine systems in brain reward circuits. In the present study, a binge-like MDPV exposure that impaired novel object recognition (NOR) dysregulated dopamine markers in mesocorticolimbic substrates of rats, with especially profound effects on D1 and D2 receptor's and VMAT gene expression. Our data suggested that dopamine receptivity was reduced in the NAc but increased in the PFC and dopamine-producing VTA. The MDPV-induced impairment of NOR was prevented by a D1 receptor antagonist, suggesting that chronic MDPV exposure produces site-specific dysregulation of dopamine markers in the mesocorticolimbic circuit and memory deficits in the NOR test that are influenced by D1 receptors.
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Affiliation(s)
- David L Bernstein
- Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Sunyl U Nayak
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Chicora F Oliver
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Scott M Rawls
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA; Department of Pharmacology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Slava Rom
- Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA; Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.
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13
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The influence of a new derivate of kisspeptin-10 - Kissorphin (KSO) on the rewarding effects of morphine in the conditioned place preference (CPP) test in male rats. Behav Brain Res 2019; 372:112043. [PMID: 31226311 DOI: 10.1016/j.bbr.2019.112043] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 05/17/2019] [Accepted: 06/16/2019] [Indexed: 12/29/2022]
Abstract
Kissorphin (KSO) is a new peptide derived from kisspeptin-10. Previous study has indicated that this peptide displays neuropeptide FF (NPFF)-like anti-opioid activity. Herein, we examined the influence of KSO (1; 3, and 10 nmol, intravenously [i.v.]), on the rewarding action of morphine (5 mg/kg, intraperitoneally [i.p.]), using the unbiased design of the conditioned place preference (CPP) paradigm in rats. To test the effect of KSO on the acquisition of morphine-induced CPP, KSO and morphine were co-injected during conditioning with no drugs treatment on the test day. To investigate the effect of KSO on the expression of morphine-induced CPP, morphine alone was given during the conditioning phase (1 × 3 days) and KSO was administered 5 min prior to the placement in the CPP apparatus on the test day. To estimate the influence of KSO on the reinstatement of morphine-induced CPP, KSO was given 5 min before a priming dose of morphine (5 mg/kg, i.p.) on the reinstatement test day. The results show that KSO inhibited the acquisition, expression and reinstatement of morphine-induced CPP. The strongest effect of KSO was observed at the dose of 10 nmol (acquisition and reinstatement) or 1 nmol (expression). KSO given alone, neither induced place preference, nor aversion. Furthermore, the morphine-modulating effects of KSO were markedly antagonized by pretreatment with RF9 (10 nmol, i.v.), the NPFF receptors selective antagonist. Thus, KSO inhibited the morphine-induced CPP mainly by involving specific activation of NPFF receptors. Overall, these data further support the anti-opioid character of KSO.
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14
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Laukkanen V, Kärkkäinen O, Kautiainen H, Tiihonen J, Storvik M. Increased [³H]quisqualic acid binding density in the dorsal striatum and anterior insula of alcoholics: A post-mortem whole-hemisphere autoradiography study. Psychiatry Res Neuroimaging 2019; 287:63-69. [PMID: 30991250 DOI: 10.1016/j.pscychresns.2019.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 04/05/2019] [Accepted: 04/07/2019] [Indexed: 01/28/2023]
Abstract
The function of group I metabotropic glutamate receptors mGluR1 and mGluR5 is involved in the hyperglutamatergic state caused by chronic alcohol. Preclinical studies suggest that group I mGluR modulation could serve as a novel treatment of alcoholism. Considering the wide role of glutamatergic neurochemistry in addiction, group I mGluR binding was studied in brain areas involved in decision-making, learning and memory. Post-mortem whole hemisphere autoradiography was used to study the binding density of [³H]quisqualic acid, a potent group I mGluR agonist, in 9 Cloninger type 1 alcoholics, 8 Cloninger type 2 alcoholics and 10 controls. Binding was studied in the dorsal striatum, hippocampus and cortex. Alcoholics displayed a trend towards increased [³H]quisqualic acid binding in all brain areas. The most robust findings were in the putamen (p = 0.006) and anterior insula (p = 0.005), where both alcoholic subtypes displayed increased binding compared to the controls. These findings suggest altered group I mGluR function in alcoholic subjects in the dorsal striatum, which is involved in habitual learning, and in the anterior insula, which has a pivotal role in the perception of bodily sensations. Increased [³H]quisqualic acid binding might suggest a beneficial impact of mGluR1/5 modulators in the treatment of alcoholism.
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Affiliation(s)
- Virpi Laukkanen
- Department of Forensic Psychiatry, University of Eastern Finland, Niuvanniemi Hospital, Niuvankuja 65, FI-70240 Kuopio, Finland; Department of Psychiatry, Kuopio University Hospital, P.O. Box 100, FI-70029 Kuopio, Finland.
| | - Olli Kärkkäinen
- Department of Pharmacology and Toxicology, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Hannu Kautiainen
- Unit of Primary Health Care, Helsinki University Central Hospital, P.O. Box 705, FI-00029 HUS, Helsinki, Finland; Department of General Practice, Helsinki University, P.O. Box 20, FI-00014 Helsinki, Finland
| | - Jari Tiihonen
- Department of Forensic Psychiatry, University of Eastern Finland, Niuvanniemi Hospital, Niuvankuja 65, FI-70240 Kuopio, Finland; Department of Clinical Neuroscience, Karolinska Institutet, Karolinska Hospital, 17176 Stockholm, Sweden
| | - Markus Storvik
- Department of Psychiatry, Kuopio University Hospital, P.O. Box 100, FI-70029 Kuopio, Finland
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15
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Lutte AH, Nazario LR, Majolo JH, Pereira TCB, Altenhofen S, Dadda ADS, Bogo MR, Da Silva RS. Persistent increase in ecto‑5'‑nucleotidase activity from encephala of adult zebrafish exposed to ethanol during early development. Neurotoxicol Teratol 2018; 70:60-66. [PMID: 30366104 DOI: 10.1016/j.ntt.2018.10.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 12/13/2022]
Abstract
Prenatal alcohol exposure causes alterations to the brain and can lead to numerous cognitive and behavioral outcomes. Long-lasting effects of early ethanol exposure have been registered in glutamatergic and dopaminergic systems. The purinergic system has been registered as an additional target of ethanol exposure. The objective of this research was to evaluate if the ecto‑5'‑nucleotidase and adenosine deaminase activities and gene expression of adult zebrafish exposed to 1% ethanol during early development could be part of the long-lasting targets of ethanol. Zebrafish embryos were exposed to 1% ethanol in two distinct developmental phases: gastrula/segmentation (5-24 h post-fertilization) or pharyngula (24-48 h post-fertilization). At the end of three months, after checking for morphological outcomes, the evaluation of enzymatic activity and gene expression was performed. Exposure to ethanol did not promote gross morphological defects; however, a significant decrease in the body length was observed (17% in the gastrula and 22% in the pharyngula stage, p < 0.0001). Ethanol exposure during the gastrula/segmentation stage promoted an increase in ecto‑5'‑nucleotidase activity (39.5%) when compared to the control/saline group (p < 0.0001). The ecto‑5'‑nucleotidase gene expression and the deamination of adenosine exerted by ecto and cytosolic adenosine deaminase were not affected by exposure to ethanol in both developmental stages. HPLC experiments did not identify differences in adenosine concentration on the whole encephala of adult animals exposed to ethanol during the gastrula stage or on control animals (p > 0.05). Although the mechanism underlying these findings requires further investigation, these results indicate that ethanol exposure during restricted periods of brain development can have long-term consequences on ecto‑5'‑nucleotidase activity, which could have an impact on subtle sequels of ethanol early exposure.
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Affiliation(s)
- Aline Haab Lutte
- Laboratório de Neuroquímica e Psicofarmacologia, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Luiza Reali Nazario
- Laboratório de Neuroquímica e Psicofarmacologia, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Júlia Huppes Majolo
- Laboratório de Neuroquímica e Psicofarmacologia, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Talita Carneiro Brandão Pereira
- Laboratório de Biologia Genômica e Molecular, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Stefani Altenhofen
- Laboratório de Neuroquímica e Psicofarmacologia, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Adilio da Silva Dadda
- Instituto Nacional de Ciência e Tecnologia em Tuberculose, Centro de Pesquisas em Biologia Molecular e Funcional, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Maurício Reis Bogo
- Laboratório de Biologia Genômica e Molecular, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Rosane Souza Da Silva
- Laboratório de Neuroquímica e Psicofarmacologia, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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16
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Yawalkar R, Changotra H, Gupta GL. Protective influences of N-acetylcysteine against alcohol abstinence-induced depression by regulating biochemical and GRIN2A, GRIN2B gene expression of NMDA receptor signaling pathway in rats. Neurochem Int 2018; 118:73-81. [DOI: 10.1016/j.neuint.2018.04.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/18/2018] [Accepted: 04/19/2018] [Indexed: 10/17/2022]
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