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Althobaiti YS. Oral self-administration of pregabalin in a mouse model and the resulting drug addiction features. Saudi Pharm J 2024; 32:101935. [PMID: 38292403 PMCID: PMC10825552 DOI: 10.1016/j.jsps.2023.101935] [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: 11/16/2023] [Accepted: 12/21/2023] [Indexed: 02/01/2024] Open
Abstract
Prescription drug abuse is an issue that is rapidly growing globally. Pregabalin, an anticonvulsant, analgesic, and anxiolytic medication, is effective in the management of multiple neurological disorders; however, there is increasing concern regarding its widespread illicit use. It has been previously reported in mice that pregabalin can induce conditioned place preference. In this current investigation, the potential of pregabalin to elicit free-choice drinking in a mouse model of drug addiction, and its effect on recognition and withdrawal behaviors after forced abstinence, were studied. Twenty-two male BALB/c mice were randomly divided into three groups (n = 7-8/group); control, pregabalin-30, and pregabalin-60. The study had three phases: habituation (days 1-5) with free water access, free-choice drinking (days 6-13) with pregabalin groups receiving one water and one pregabalin bottle, and forced abstinence (days 14-21) with free water access. On day 13, the first open field test was conducted, followed by the Novel Object Recognition Test. On day 21, the second open field test was performed, followed by the Tail Suspension Test and Forced Swimming Test. Pregabalin elicited voluntary drinking in the higher-dose group, concurrently causing a decline in recognition memory performance in the novel object recognition test. Moreover, pregabalin induced withdrawal behavior after a period of forced abstinence in the forced swimming and tail suspension tests. This is the first report to establish an animal model of free-choice pregabalin drinking that may be used for further molecular studies and targeted therapy for pregabalin addiction.
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Affiliation(s)
- Yusuf S. Althobaiti
- Address: Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
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Hámor PU, Knackstedt LA, Schwendt M. The role of metabotropic glutamate receptors in neurobehavioral effects associated with methamphetamine use. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2023; 168:177-219. [PMID: 36868629 DOI: 10.1016/bs.irn.2022.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metabotropic glutamate (mGlu) receptors are expressed throughout the central nervous system and act as important regulators of drug-induced neuroplasticity and behavior. Preclinical research suggests that mGlu receptors play a critical role in a spectrum of neural and behavioral consequences arising from methamphetamine (meth) exposure. However, an overview of mGlu-dependent mechanisms linked to neurochemical, synaptic, and behavioral changes produced by meth has been lacking. This chapter provides a comprehensive review of the role of mGlu receptor subtypes (mGlu1-8) in meth-induced neural effects, such as neurotoxicity, as well as meth-associated behaviors, such as psychomotor activation, reward, reinforcement, and meth-seeking. Additionally, evidence linking altered mGlu receptor function to post-meth learning and cognitive deficits is critically evaluated. The chapter also considers the role of receptor-receptor interactions involving mGlu receptors and other neurotransmitter receptors in meth-induced neural and behavioral changes. Taken together, the literature indicates that mGlu5 regulates the neurotoxic effects of meth by attenuating hyperthermia and possibly through altering meth-induced phosphorylation of the dopamine transporter. A cohesive body of work also shows that mGlu5 antagonism (and mGlu2/3 agonism) reduce meth-seeking, though some mGlu5-blocking drugs also attenuate food-seeking. Further, evidence suggests that mGlu5 plays an important role in extinction of meth-seeking behavior. In the context of a history of meth intake, mGlu5 also co-regulates aspects of episodic memory, with mGlu5 stimulation restoring impaired memory. Based on these findings, we propose several avenues for the development of novel pharmacotherapies for Methamphetamine Use Disorder based on the selective modulation mGlu receptor subtype activity.
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Affiliation(s)
- Peter U Hámor
- Department of Psychology, University of Florida, Gainesville, FL, United States; Center for Addiction Research and Education, University of Florida, Gainesville, FL, United States; Department of Pharmacology, Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Lori A Knackstedt
- Department of Psychology, University of Florida, Gainesville, FL, United States; Center for Addiction Research and Education, University of Florida, Gainesville, FL, United States
| | - Marek Schwendt
- Department of Psychology, University of Florida, Gainesville, FL, United States; Center for Addiction Research and Education, University of Florida, Gainesville, FL, United States.
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Dias YJ, Sinha-Ray S, Pourdeyhimi B, Yarin AL. Chicago Sky Blue diazo-dye release from poly(methyl methacrylate) (PMMA) electrospun nanofibers. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Potential Benefits of N-Acetylcysteine in Preventing Pregabalin-Induced Seeking-Like Behavior. Healthcare (Basel) 2021; 9:healthcare9040376. [PMID: 33805329 PMCID: PMC8066267 DOI: 10.3390/healthcare9040376] [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: 02/18/2021] [Revised: 03/13/2021] [Accepted: 03/18/2021] [Indexed: 11/24/2022] Open
Abstract
Substance-use disorder is globally prevalent and responsible for numerous social and medical problems. Pregabalin (Lyrica), typically used to treat diabetic neuropathy, has recently emerged as a drug of abuse. Drug abuse is associated with several neuronal changes, including the downregulation of glutamate transporters such as glutamate transporter 1 and cystine/glutamate antiporter. We investigated the effects of N-acetylcysteine, a glutamate transporter 1 and xCT upregulator, on pregabalin addiction using a conditioned place preference paradigm. Pregabalin (60 mg/kg) was found to induce conditioned place preference when compared to a vehicle. A 100 mg/kg dose of N-acetylcysteine was found to block pregabalin-seeking behaviors. These results support previous findings showing that glutamate transporters play an important role in pregabalin-induced seeking behaviors. N-acetylcysteine may represent a beneficial agent in preventing the abuse potential of pregabalin.
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Onaolapo AY, Onaolapo OJ. Dietary glutamate and the brain: In the footprints of a Jekyll and Hyde molecule. Neurotoxicology 2020; 80:93-104. [PMID: 32687843 DOI: 10.1016/j.neuro.2020.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/29/2020] [Accepted: 07/14/2020] [Indexed: 12/15/2022]
Abstract
Glutamate is a crucial neurotransmitter of the mammalian central nervous system, a molecular component of our diet, and a popular food-additive. However, for decades, concerns have been raised about the issue of glutamate's safety as a food additive; especially, with regards to its ability (or otherwise) to cross the blood-brain barrier, cause excitotoxicity, or lead to neuron death. Results of animal studies following glutamate administration via different routes suggest that an array of effects can be observed. While some of the changes appear deleterious, some are not fully-understood, and the impact of others might even be beneficial. These observations suggest that with regards to the mammalian brain, exogenous glutamate might exert a double-sided effect, and in essence be a two-faced molecule whose effects may be dependent on several factors. This review draws from the research experiences of the authors and other researchers regarding the effects of exogenous glutamate on the brain of rodents. We also highlight the possible implications of such effects on the brain, in health and disease. Finally, we deduce that beyond the culinary effects of exogenous glutamate, there is the possibility of a beneficial role in the understanding and management of brain disorders.
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Affiliation(s)
- Adejoke Y Onaolapo
- Behavioural Neuroscience/Neurobiology Unit, Department of Anatomy, Ladoke Akintola University of Technology, Ogbomosho, Oyo State, Nigeria.
| | - Olakunle J Onaolapo
- Behavioural Neuroscience/Neuropharmacology Unit, Department of Pharmacology, Ladoke Akintola University of Technology, Osogbo, Osun State, Nigeria.
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Yang GM, Li L, Xue FL, Ma CL, Zeng XF, Zhao YN, Zhang DX, Yu Y, Yan QW, Zhou YQ, Hong SJ, Li LH. The Potential Role of PKA/CREB Signaling Pathway Concerned with Gastrodin Administration on Methamphetamine-Induced Conditioned Place Preference Rats and SH-SY5Y Cell Line. Neurotox Res 2020; 37:926-935. [PMID: 31900897 DOI: 10.1007/s12640-019-00150-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 11/16/2019] [Accepted: 12/11/2019] [Indexed: 02/07/2023]
Abstract
To investigate the effects of gastrodin (GAS) on methamphetamine (MA)-induced conditioned place preference (CPP) in rats and explore its potential mechanisms. MA (10 mg/kg) was initially injected intraperitoneally (i.p.) in rats, after which they were administered either MA or saline alternately from day 4 to 13 (D4-13) for 10 days, followed by treatment with GAS (10 or 20 mg/kg, i.p.) on D15-21 for 7 days. The rats underwent CPP testing after MA and GAS treatment. In vitro, SH-SY5Y cells were exposed to MA (2.0 mM) for 24 h, followed by treatment with GAS (2.0 or 4.0 mM) for 24 h. The expression levels of PKA, P-PKA, CREB, and P-CREB proteins in the prefrontal cortex, nucleus accumbens, and ventral tegmental area of MA-induced CPP rats and in SH-SY5Y cells were detected by Western blot analysis. The MA-induced CPP rat model was successfully established. The administration of MA stimulated a significant alteration in behavior, as measured by the CPP protocol. After treatment with GAS, the amount of time rats spent in the MA-paired chamber was significantly reduced. Results also showed that MA increased the expression levels of PKA, P-PKA, CREB, and p-CREB proteins in the prefrontal cortex, nucleus accumbens, and ventral tegmental area of CPP rats and in SH-SY5Y cells (p < 0.05). GAS attenuated the effect of MA-induced CPP in rats and decreased the expression levels of proteins in vivo and in vitro. Our study suggests that GAS can attenuate the effects of MA-induced CPP in rats by regulating the PKA/CREB signaling pathway.
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Affiliation(s)
- Gen-Meng Yang
- School of Forensic Medicine, Kunming Medical University, Kunming, 650500, Yunnan, China
| | - Lu Li
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, 510000, Guangdong, China
| | - Feng-Lin Xue
- School of Forensic Medicine, Kunming Medical University, Kunming, 650500, Yunnan, China
- Department of Pathology, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China
| | - Chen-Li Ma
- School of Forensic Medicine, Kunming Medical University, Kunming, 650500, Yunnan, China
| | - Xiao-Feng Zeng
- School of Forensic Medicine, Kunming Medical University, Kunming, 650500, Yunnan, China
| | - Yong-Na Zhao
- International Education School, Kunming Medical University, Kunming, 650500, Yunnan, China
| | - Dong-Xian Zhang
- School of Forensic Medicine, Kunming Medical University, Kunming, 650500, Yunnan, China
| | - Yang Yu
- School of Forensic Medicine, Kunming Medical University, Kunming, 650500, Yunnan, China
| | - Qian-Wen Yan
- School of Forensic Medicine, Kunming Medical University, Kunming, 650500, Yunnan, China
| | - Yi-Qing Zhou
- School of Forensic Medicine, Kunming Medical University, Kunming, 650500, Yunnan, China
| | - Shi-Jun Hong
- School of Forensic Medicine, Kunming Medical University, Kunming, 650500, Yunnan, China.
| | - Li-Hua Li
- School of Forensic Medicine, Kunming Medical University, Kunming, 650500, Yunnan, China.
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Althobaiti YS, Almalki AH. Effects of environmental enrichment on reinstatement of methamphetamine-induced conditioned place preference. Behav Brain Res 2020; 379:112372. [PMID: 31759048 DOI: 10.1016/j.bbr.2019.112372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/15/2019] [Accepted: 11/19/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVE The influence of environmental enrichment (EE) on reinstatement to methamphetamine (METH) seeking in rat model was investigated. METHODS Wistar rats were divided to receive saline (1 ml/kg) or METH (1 mg/kg, i.p.) for 8 days during the conditioning training in the conditioned place preference (CPP) paradigm, which is one of the most popular models to study the motivational effects of drugs and non-drug treatments in experimental animals. Rats were then kept in either isolated (IE) or enriched environment (EE) for 30 days during the extinction training. Animals were finally examined for reinstatement provoked by i.p. injections of METH. RESULTS Saline injections during the conditioning phase did not change CPP during reinstatement in animals of IE or EE control groups. METH injections reinstated place preference in the IE animal group. Interestingly, EE significantly blocked this reinstatement effects of METH. CONCLUSION These results show the important role of social interactions and positive environment conditions in preventing reinstatement to drug use.
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Affiliation(s)
- Yusuf S Althobaiti
- Taif University, College of Pharmacy, Department of Pharmacology and Toxicology, Taif, Saudi Arabia; Taif University, College of Pharmacy, Addiction and Neuroscience Research Unit, Taif, Saudi Arabia.
| | - Atiah H Almalki
- Taif University, College of Pharmacy, Addiction and Neuroscience Research Unit, Taif, Saudi Arabia; Taif University, College of Pharmacy, Department of Pharmaceutical chemistry, Taif, Saudi Arabia
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8
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CSB6B prevents β-amyloid-associated neuroinflammation and cognitive impairments via inhibiting NF-κB and NLRP3 in microglia cells. Int Immunopharmacol 2020; 81:106263. [PMID: 32028243 DOI: 10.1016/j.intimp.2020.106263] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/22/2020] [Accepted: 01/27/2020] [Indexed: 12/13/2022]
Abstract
Pathological β-amyloid (Aβ)-induced microglial activation could cause chronic neuroinflammation in the brain of Alzheimer's disease (AD) patients, and has been considered as one of the main pathological events of this disease. Chicago sky blue 6B (CSB6B), a pigment used in biochemical staining, has been reported to produce analgesic effects in neuroinflammatory-associated pain models. We have previously found that CSB6B could directly inhibit Aβ aggregation and prevent Aβ toxicity in neurons. However, it remains unclear whether this compound could prevent Aβ-induced neuroinflammation and impairments of learning and memory in the AD models. In this study, CSB6B was found to effectively inhibit the production of pro-inflammatory cytokines, including tumor necrosis factor-α and interleukin-1β, without affecting cell viability in BV2 microglia cells stimulated by Aβ oligomer and lipopolysaccharide. Moreover, CSB6B significantly reduced mRNA expression of inducible nitric oxide synthase and increased mRNA expression of arginase-1, suggesting that CSB6B might promote the polarization of BV2 cells into M2 phenotype. In Aβ oligomer-treated mice, hippocampal injection of CSB6B prevented cognitive impairments, and attenuated pro-inflammatory cytokines production. In addition, CSB6B inhibited nuclear transcription factor-κB (NF-κB), and restrainedthe activation of NOD-like receptor pyrin domain containing-3 (NLRP3) both in vitro and in vivo. According to our results, CSB6B may counteract Aβ-induced cognitive impairments and neuroinflammation by inhibiting NF-κB and NLRP3. Combined with previous studies, we anticipated that CSB6B may further develop into a potential anti-AD drug with multiple functions on neurons and microglia cells, concurrently.
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Althobaiti YS, Almalki A, Alsaab H, Alsanie W, Gaber A, Alhadidi Q, Hardy AMG, Nasr A, Alzahrani O, Stary CM, Shah ZA. Pregabalin: Potential for Addiction and a Possible Glutamatergic Mechanism. Sci Rep 2019; 9:15136. [PMID: 31641170 PMCID: PMC6805907 DOI: 10.1038/s41598-019-51556-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 09/30/2019] [Indexed: 11/16/2022] Open
Abstract
Drug addiction remains a prevalent and fatal disease worldwide that carries significant social and economic impacts. Recent reports suggest illicit pregabalin (Lyrica) use may be increasing among youth, however the addictive potential of pregabalin has not been well established. Drug seeking behavior and chronic drug use are associated with deficits in glutamate clearance and activation of postsynaptic glutamatergic receptors. In the current study, we investigated the abuse potential of pregabalin using conditioned place preference (CPP) paradigm. Different doses of pregabalin (30, 60, 90, and 120 mg/kg) were used to assess the seeking behavior in mice. Glutamate homeostasis is maintained by glutamate transporter type-1 (GLT-1), which plays a vital role in clearing the released glutamate from synapses and drug seeking behavior. Therefore, we investigated the role of glutamate in pregabalin-seeking behavior with ceftriaxone (CEF), a potent GLT-1 upregulator. Mice treated with pregabalin 60 and 90 mg/kg doses demonstrated drug seeking-like behavior, which was significantly blocked by CEF pretreatment. These results suggest that pregabalin-induced CPP was successfully modulated by CEF which could serve as a lead compound for developing treatment for pregabalin abuse.
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Affiliation(s)
- Yusuf S Althobaiti
- Taif University, College of Pharmacy, Department of Pharmacology and Toxicology, Taif, Saudi Arabia. .,Taif University, College of Pharmacy, Addiction and Neuroscience Research Unit, Taif, Saudi Arabia.
| | - Atiah Almalki
- Taif University, College of Pharmacy, Addiction and Neuroscience Research Unit, Taif, Saudi Arabia.,Taif University, College of Pharmacy, Department of Pharmaceutical chemistry, Taif, Saudi Arabia
| | - Hashem Alsaab
- Taif University, College of Pharmacy, Addiction and Neuroscience Research Unit, Taif, Saudi Arabia.,Taif University, College of Pharmacy, Department of Pharmaceutics and Pharmaceutical Technology, Taif, Saudi Arabia
| | - Walaa Alsanie
- Taif University, College of Pharmacy, Addiction and Neuroscience Research Unit, Taif, Saudi Arabia.,Taif University, Faculty of Applied Medical Sciences, Department of Clinical Laboratories Sciences, Taif, Saudi Arabia
| | - Ahmed Gaber
- Taif University, College of Pharmacy, Addiction and Neuroscience Research Unit, Taif, Saudi Arabia.,Taif University, Faculty of Sciences, Department of Biology, Taif, Saudi Arabia
| | - Qasim Alhadidi
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford Medical School, Stanford University, CA, USA
| | - Ana Maria Gregio Hardy
- Department of Physiology and Pharmacology, College of Medicine and Life Sciences, University of Toledo, OH, USA
| | - Abdulrahman Nasr
- Taif University, College of Pharmacy, Department of Pharmacology and Toxicology, Taif, Saudi Arabia
| | - Omar Alzahrani
- Taif University, College of Pharmacy, Department of Pharmacology and Toxicology, Taif, Saudi Arabia
| | - Creed M Stary
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford Medical School, Stanford University, CA, USA
| | - Zahoor A Shah
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, OH, USA
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AY O, OI O, FO Y, AM A, IO A, OJ O. Oral Monosodium Glutamate Differentially Affects Open-Field Behaviours, Behavioural Despair and Place Preference in Male and Female Mice. ACTA ACUST UNITED AC 2019. [DOI: 10.2174/2211556008666181213160527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background:
Monosodium glutamate (MSG) is a flavour enhancer which induces
behavioural changes in animals. However the influence of sex on the behavioural response
to MSG has not been investigated.
Objective:
The sex-differential effects of MSG on open-field behaviours, anxiety-related
behaviour, behavioural despair, place-preference, and plasma/brain glutamate levels in
adult mice were assessed.
Methods:
Mice were assigned to three groups (1-3), based on the models used to assess
behaviours. Animals in group 1 were for the elevated-plus maze and tail-suspension paradigms,
group 2 for the open-field and forced-swim paradigms, while mice in group 3 were
for observation in the conditioned place preference paradigm. Mice in all groups were further
assigned into five subgroups (10 males and 10 females), and administered vehicle (distilled
water at 10 ml/kg) or one of four doses of MSG (20, 40, 80 and 160 mg/kg) daily for
6 weeks, following which they were exposed to the behavioural paradigms. At the end of
the behavioural tests, the animals were sacrificed, and blood was taken for estimation of
glutamate levels. The brains were also homogenised for estimation of glutamate levels.
Results:
MSG was associated with a reduction in locomotion in males and females (except
at 160 mg/kg, male), an anxiolytic response in females, an anxiogenic response in males,
and decreased behavioural despair in both sexes (females more responsive). Postconditioning
MSG-associated place-preference was significantly higher in females. Plasma/
brain glutamate was not significantly different between sexes.
Conclusion:
Repeated MSG administration alters a range of behaviours in a sex-dependent
manner in mice.
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Affiliation(s)
- Onaolapo AY
- Behavioural Neuroscience/Neurobiology Unit, Department of Anatomy, Ladoke Akintola University of Technology, Ogbomosho, Oyo State, Nigeria
| | - Olawore OI
- Behavioural Neuroscience/Neurobiology Unit, Department of Anatomy, Ladoke Akintola University of Technology, Ogbomosho, Oyo State, Nigeria
| | - Yusuf FO
- Behavioural Neuroscience/Neurobiology Unit, Department of Anatomy, Ladoke Akintola University of Technology, Ogbomosho, Oyo State, Nigeria
| | - Adeyemo AM
- Behavioural Neuroscience/Neurobiology Unit, Department of Anatomy, Ladoke Akintola University of Technology, Ogbomosho, Oyo State, Nigeria
| | - Adewole IO
- Behavioural Neuroscience/Neuropharmacology Unit, Department of Pharmacology, Ladoke Akintola University of Technology, Osogbo, Osun State, Nigeria
| | - Onaolapo OJ
- Behavioural Neuroscience/Neuropharmacology Unit, Department of Pharmacology, Ladoke Akintola University of Technology, Osogbo, Osun State, Nigeria
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Althobaiti YS. Role of venlafaxine in relapse to methamphetamine seeking. Potential treatment option for drug dependence. Saudi Med J 2019; 40:339-346. [PMID: 30957126 PMCID: PMC6506650 DOI: 10.15537/smj.2019.4.23718] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVES To investigate the effects of venlafaxine (VEN) on the relapse of methamphetamine (METH)-induced conditioned place preference (CPP) in rats. METHODS This study was conducted at the Department of Pharmacology and Toxicology, and the Addiction and Neuroscience Research Unit, College of Pharmacy, Taif University, Taif, Kingdom of Saudi Arabia between May 2017 and October 2018. A total of 32 male Wistar rats were used in this study. Rats were divided to receive either METH or saline during the conditioning phase. Following the acquisition of METH-induced CPP, the animals were randomly divided to receive saline or VEN for 21 days instead of METH during the extinction training. The reinstatement was initiated by re-exposure to a single dose of METH to test any anti-reinstatement effects of VEN. Results: Two-way repeated measures Analysis of Variance (ANOVA) (time × chamber) was used to analyze time spent in conditioning chambers, while distance traveled was analyzed using one-way ANOVA. Saline or VEN, when administered alone, did not affect CPP or locomotor activity results. A priming intraperitoneal injection of METH reinstated CPP in the animals treated with saline during the extinction phase. Interestingly, VEN treatment blocked METH-induced CPP. CONCLUSION Venlafaxine effects on the reinstatement of METH-induced CPP are not likely due to nonspecific effects on locomotor activity. This beneficial effect of VEN on relapse to METH-induced CPP could be due to its antidepressant effects. Venlafaxine can thus be a potential therapeutic option in the treatment of relapse to METH-seeking behaviors.
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Affiliation(s)
- Yusuf S Althobaiti
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, Taif, Kingdom of Saudi Arabia. E-mail.
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12
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Onaolapo A, Onaolapo O. Food additives, food and the concept of ‘food addiction’: Is stimulation of the brain reward circuit by food sufficient to trigger addiction? PATHOPHYSIOLOGY 2018; 25:263-276. [DOI: 10.1016/j.pathophys.2018.04.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 02/26/2018] [Accepted: 04/07/2018] [Indexed: 02/08/2023] Open
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Althobaiti YS, Alshehri FS, Hakami AY, Hammad AM, Sari Y. Effects of Clavulanic Acid Treatment on Reinstatement to Methamphetamine, Glial Glutamate Transporters, and mGluR 2/3 Expression in P Rats Exposed to Ethanol. J Mol Neurosci 2018; 67:1-15. [PMID: 30471010 DOI: 10.1007/s12031-018-1194-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 10/01/2018] [Indexed: 11/24/2022]
Abstract
Evidence demonstrated that the glutamatergic system is implicated in mediating relapse to several drugs of abuse, including methamphetamine (METH). Glutamate homeostasis is maintained by a number of glutamate transporters, such as glutamate transporter type 1 (GLT-1), cystine/glutamate transporter (xCT), and glutamate aspartate transporter (GLAST). In addition, group II metabotropic glutamate receptors (mGluR2/3) were found to be implicated in relapse-seeking behavior. Ample evidence showed that β-lactam antibiotics are effective in upregulating GLT-1 and xCT expression, thus improving glutamate homeostasis and attenuating relapse to drugs of abuse. In this study, we investigated the reinstatement of METH using conditioned place preference (CPP) in male alcohol-preferring (P) rats exposed to home-cage free choice ethanol drinking. Here, we tested the effect of clavulanic acid (CA), a β-lactam, on the reinstatement of METH-seeking and ethanol drinking. In addition, we examined the expression of GLT-1, xCT, and GLAST as well as metabotropic glutamate receptor (mGluR2/3) in the nucleus accumbens (NAc) shell, NAc core, and dorsomedial prefrontal cortex (dmPFC). A priming i.p. injection of METH reinstated preference in METH-paired chamber following extinction. Chronic exposure to ethanol decreased the expression of GLT-1 and xCT in the NAc shell, but not in the NAc core or dmPFC. CA treatment blocked the reinstatement of METH-seeking, decreased ethanol intake, and restored the expression of GLT-1 and xCT in the NAc shell. In addition, the expression of mGluR2/3 was increased by CA treatment in the NAc shell and dmPFC. These findings suggest that these glutamate transporters and mGluR2/3 might be potential therapeutic targets for the attenuation of reinstatement to METH-seeking.
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Affiliation(s)
- Yusuf S Althobaiti
- College of Pharmacy and Pharmaceutical Sciences, Department of Pharmacology and Experimental Therapeutics, University of Toledo, Health Science Campus, 3000 Arlington Avenue, HEB 282G, Toledo, OH, 43614, USA.,College of Pharmacy, Department of Pharmacology and Toxicology, Taif University, Taif, Saudi Arabia
| | - Fahad S Alshehri
- College of Pharmacy and Pharmaceutical Sciences, Department of Pharmacology and Experimental Therapeutics, University of Toledo, Health Science Campus, 3000 Arlington Avenue, HEB 282G, Toledo, OH, 43614, USA
| | - Alqassem Y Hakami
- College of Pharmacy and Pharmaceutical Sciences, Department of Pharmacology and Experimental Therapeutics, University of Toledo, Health Science Campus, 3000 Arlington Avenue, HEB 282G, Toledo, OH, 43614, USA
| | - Alaa M Hammad
- College of Pharmacy and Pharmaceutical Sciences, Department of Pharmacology and Experimental Therapeutics, University of Toledo, Health Science Campus, 3000 Arlington Avenue, HEB 282G, Toledo, OH, 43614, USA
| | - Youssef Sari
- College of Pharmacy and Pharmaceutical Sciences, Department of Pharmacology and Experimental Therapeutics, University of Toledo, Health Science Campus, 3000 Arlington Avenue, HEB 282G, Toledo, OH, 43614, USA.
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Pandy V, Wai YC, Amira Roslan NF, Sajat A, Abdulla Jallb AH, Vijeepallam K. Methanolic extract of Morinda citrifolia Linn. unripe fruit attenuates methamphetamine-induced conditioned place preferences in mice. Biomed Pharmacother 2018; 107:368-373. [DOI: 10.1016/j.biopha.2018.08.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 07/20/2018] [Accepted: 08/03/2018] [Indexed: 01/07/2023] Open
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Morley KC, Cornish JL, Faingold A, Wood K, Haber PS. Pharmacotherapeutic agents in the treatment of methamphetamine dependence. Expert Opin Investig Drugs 2017; 26:563-578. [PMID: 28351169 DOI: 10.1080/13543784.2017.1313229] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
INTRODUCTION Methamphetamine use is a serious public health concern in many countries and is second to cannabis as the most widely abused illicit drug in the world. Effective management for methamphetamine dependence remains elusive and the large majority of methamphetamine users relapse following treatment. Areas covered: Progression in the understanding of the pharmacological basis of methamphetamine use has provided us with innovative opportunities to develop agents to treat dependence. The current review summarizes relevant literature on the neurobiological and clinical correlates associated with methamphetamine use. We then outline agents that have been explored for potential treatments in preclinical studies, human laboratory phase I and phase II trials over the last ten years. Expert opinion: No agent has demonstrated a broad and strong effect in achieving MA abstinence in Phase II trials. Agents with novel therapeutic targets appear promising. Advancement in MA treatment, including translation into practice, faces several clinical challenges.
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Affiliation(s)
- Kirsten C Morley
- a NHMRC Centre for Excellence in Mental Health and Substance Use, Discipline of Addiction Medicine , The University of Sydney , Sydney , Australia
| | - Jennifer L Cornish
- b Department of Psychology , Centre for Emotional Health, Macquarie University , Sydney , Australia
| | - Alon Faingold
- c Drug Health Services , Royal Prince Alfred Hospital , Camperdown , Australia
| | - Katie Wood
- a NHMRC Centre for Excellence in Mental Health and Substance Use, Discipline of Addiction Medicine , The University of Sydney , Sydney , Australia
| | - Paul S Haber
- a NHMRC Centre for Excellence in Mental Health and Substance Use, Discipline of Addiction Medicine , The University of Sydney , Sydney , Australia.,c Drug Health Services , Royal Prince Alfred Hospital , Camperdown , Australia
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Monosodium glutamate-associated alterations in open field, anxiety-related and conditioned place preference behaviours in mice. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2017; 390:677-689. [DOI: 10.1007/s00210-017-1371-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 03/23/2017] [Indexed: 10/19/2022]
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Mediouni S, Marcondes MCG, Miller C, McLaughlin JP, Valente ST. The cross-talk of HIV-1 Tat and methamphetamine in HIV-associated neurocognitive disorders. Front Microbiol 2015; 6:1164. [PMID: 26557111 PMCID: PMC4615951 DOI: 10.3389/fmicb.2015.01164] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 10/07/2015] [Indexed: 12/15/2022] Open
Abstract
Antiretroviral therapy has dramatically improved the lives of human immunodeficiency virus 1 (HIV-1) infected individuals. Nonetheless, HIV-associated neurocognitive disorders (HAND), which range from undetectable neurocognitive impairments to severe dementia, still affect approximately 50% of the infected population, hampering their quality of life. The persistence of HAND is promoted by several factors, including longer life expectancies, the residual levels of virus in the central nervous system (CNS) and the continued presence of HIV-1 regulatory proteins such as the transactivator of transcription (Tat) in the brain. Tat is a secreted viral protein that crosses the blood–brain barrier into the CNS, where it has the ability to directly act on neurons and non-neuronal cells alike. These actions result in the release of soluble factors involved in inflammation, oxidative stress and excitotoxicity, ultimately resulting in neuronal damage. The percentage of methamphetamine (MA) abusers is high among the HIV-1-positive population compared to the general population. On the other hand, MA abuse is correlated with increased viral replication, enhanced Tat-mediated neurotoxicity and neurocognitive impairments. Although several strategies have been investigated to reduce HAND and MA use, no clinically approved treatment is currently available. Here, we review the latest findings of the effects of Tat and MA in HAND and discuss a few promising potential therapeutic developments.
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Affiliation(s)
- Sonia Mediouni
- Department of Infectious Diseases, The Scripps Research Institute , Jupiter, FL, USA
| | | | - Courtney Miller
- Department of Metabolism and Aging, The Scripps Research Institute , Jupiter, FL, USA ; Department of Neuroscience, The Scripps Research Institute , Jupiter, FL, USA
| | - Jay P McLaughlin
- Department of Pharmacodynamics, University of Florida , Gainesville, FL, USA
| | - Susana T Valente
- Department of Infectious Diseases, The Scripps Research Institute , Jupiter, FL, USA
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Ceftriaxone attenuates acquisition and facilitates extinction of cocaine-induced suppression of saccharin intake in C57BL/6J mice. Physiol Behav 2015; 149:174-80. [PMID: 26066719 DOI: 10.1016/j.physbeh.2015.06.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 05/08/2015] [Accepted: 06/06/2015] [Indexed: 12/14/2022]
Abstract
Growing evidence implicates glutamate homeostasis in a number of behaviors observed in addiction such as acquisition of drug taking, motivation, and reinstatement. To date, however, the role of glutamate homeostasis in the avoidance of natural rewards due to exposure to drugs of abuse has received little attention. The aim of the current study was to evaluate the beta-lactam antibiotic, ceftriaxone, which has been shown to normalize disrupted glutamate homeostasis associated with exposure to drugs of abuse, in cocaine-induced suppression of saccharin intake in C57BL/6J mice. Briefly, C57BL/6J mice received daily injections of either 200mg/kg ceftriaxone or saline. Mice were then given access to 0.15% saccharin for 1h and immediately injected intraperitoneally with either saline or 30 mg/kg cocaine; taste-drug pairings occurred every 24h for 5 trials followed by a final CS only trial. One week following taste-drug pairings, extinction was evaluated in a series of one- and two-bottle saccharin intake tests. Individual differences in cocaine-induced suppression were observed (i.e., low and high suppressors) with differential effects of ceftriaxone. Ceftriaxone delayed suppression of saccharin intake in high suppressors but prevented suppression in low suppressors. In addition, ceftriaxone history facilitated extinction in the high suppressors. These data suggest that changes in glutamate homeostasis may be involved in the formation and expression of cocaine-induced suppression of saccharin intake in mice.
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Methamphetamine modulates glutamatergic synaptic transmission in rat primary cultured hippocampal neurons. Brain Res 2014; 1582:1-11. [DOI: 10.1016/j.brainres.2014.07.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 06/02/2014] [Accepted: 07/24/2014] [Indexed: 12/26/2022]
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