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Alaei H, Ghobadi Pour M. Stimulation and transient inactivation of ventral tegmental area modify reinstatement of acquisition phase of morphine-induced conditioned place preference in male rats. Brain Res Bull 2021; 176:130-141. [PMID: 34480979 DOI: 10.1016/j.brainresbull.2021.08.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/25/2021] [Accepted: 08/30/2021] [Indexed: 11/27/2022]
Abstract
For processing the development of psychological dependency, opioid reinforcement, and opiate-related associative reward, learning, and memory in the brain, the ventral tegmental area (VTA) is considered the key zone. As the responsible region for the morphine role in conditioned place preference (CPP), this area has an important role. So, the present research was conducted to investigate the effects of different intensities of electrical stimulation on VTA utilizing CPP, with two morphine doses. Reversible inactivation of VTA was performed via bilateral microinjection of Lidocaine into this area with two implanted separate cannulas. Our findings indicated that 5 mg/kg morphine-induced CPP was suppressed by 150 μA VTA electrical stimulation. The results also showed that bilateral Intra-VTA administration of Lidocaine significantly decreased the 5 mg/kg morphine-induced CPP acquisition phase in comparison with their respective sham group, which reversed in the reinstatement test. It should be concluded that these findings are important for the detection of mesolimbic nervous system ties and could help to find new ways to attenuate the rewarding action of morphine.
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Affiliation(s)
- Hojjatollah Alaei
- Department of Physiology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mozhgan Ghobadi Pour
- Department of Physiology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
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Abstract
This paper is the fortieth consecutive installment of the annual anthological review of research concerning the endogenous opioid system, summarizing articles published during 2017 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides and receptors as well as effects of opioid/opiate agonists and antagonists. The review is subdivided into the following specific topics: molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors (1), the roles of these opioid peptides and receptors in pain and analgesia in animals (2) and humans (3), opioid-sensitive and opioid-insensitive effects of nonopioid analgesics (4), opioid peptide and receptor involvement in tolerance and dependence (5), stress and social status (6), learning and memory (7), eating and drinking (8), drug abuse and alcohol (9), sexual activity and hormones, pregnancy, development and endocrinology (10), mental illness and mood (11), seizures and neurologic disorders (12), electrical-related activity and neurophysiology (13), general activity and locomotion (14), gastrointestinal, renal and hepatic functions (15), cardiovascular responses (16), respiration and thermoregulation (17), and immunological responses (18).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, CUNY, 65-30 Kissena Blvd., Flushing, NY, 11367, United States.
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Fatahi Z, Zeinaddini-Meymand A, Karimi-Haghighi S, Moradi M, Khodagholi F, Haghparast A. Naloxone-precipitated withdrawal ameliorates impairment of cost-benefit decision making in morphine-treated rats: Involvement of BDNF, p-GSK3-β, and p-CREB in the amygdala. Neurobiol Learn Mem 2020; 167:107138. [PMID: 31838222 DOI: 10.1016/j.nlm.2019.107138] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 11/26/2019] [Accepted: 12/12/2019] [Indexed: 12/21/2022]
Abstract
Several studies indicated that morphine administration impairs cognitive brain functions. Therefore, in the current study, we investigated the effect of subchronic exposure to morphine and its withdrawal on effort- and/or delay-based forms of cost-benefit decision making and alterations in p-CREB/CREB ratio, p-GSK3β/GSK3β ratio, and BDNF level during decision making in the amygdala. Our data displayed an impairment of both forms of cost-benefit decision making following subchronic exposure to morphine. However, preference of high reward/high effort and/or high delay reward increased after naloxone injection. In molecular section, levels of BDNF and p-CREB/CREB ratio increased during cost-benefit decision making while p-GSK3β/GSK3β ratio decreased in both forms of decision making. In morphine-treated rats, level of BDNF and p-CREB/CREB ratio reduced during both forms of decision making while p-GSK3β/GSK3β ratio increased during delay-based and did not have a significant difference with the control group during effort-based decision making. On the withdrawal day, BDNF level raised while p-GSK3β/GSK3β ratio attenuated compared to morphine-treated group in both form of decision making. In addition, p-CREB/CREB ratio increased only during delay-based decision making on the withdrawal day. In conclusion, our data revealed that subchronic exposure to morphine interferes with the cost-benefit decision making may be via changes in level of BDNF, p-CREB/CREB and p-GSK3β/GSK3β ratio in the amygdala.
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Affiliation(s)
- Zahra Fatahi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, School of Medicine, Tehran, Iran
| | - Arman Zeinaddini-Meymand
- Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, School of Medicine, Tehran, Iran
| | - Saeideh Karimi-Haghighi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, School of Medicine, Tehran, Iran
| | - Marzieh Moradi
- Department of Neuroscience and Behavioral Sciences, Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Fariba Khodagholi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, School of Medicine, Tehran, Iran
| | - Abbas Haghparast
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, School of Medicine, Tehran, Iran.
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Mortazaei S, Sahraei H, Bahari Z, Meftahi GH, Pirzad Jahromi G, Hatef B. Ventral tegmental area inactivation alters hormonal, metabolic, and locomotor responses to inescapable stress. Arch Physiol Biochem 2019; 125:293-301. [PMID: 29580092 DOI: 10.1080/13813455.2018.1455711] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Context: The involvement of unilateral and bilateral inhibition of the ventral tegmental area (VTA) in response to stress is not well understood. Objective: In the present study, the effect of unilateral and bilateral inhibition of the VTA on hormonal, metabolic, and locomotor responses to stress was assessed. Material and methods: Male rats seven days after cannulation into the VTA received electro foot-shock stress for seven consecutive days. Twenty minutes before induction of stress, 2% lidocaine hydrochloride or sterile saline (control) was injected either uni- or bi-laterally into the VTA. Results: Results showed that stress significantly increased serum corticosterone level, adrenal gland weight and anorexia, reduced weight gain, food-intake, and locomotor activity. However, bilateral inactivation of VTA prevented stress-induced these parameters changes. Conclusion: The present study demonstrated that the bilateral VTA blockade effectively relieves the symptoms of stress, while the unilateral VTA blockade does not significantly improve the changes caused by stress.
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Affiliation(s)
| | - Hedayat Sahraei
- b Neuroscience Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Zahra Bahari
- c Department of Physiology and Biophysics, Faculty of Medicine, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Gholam Hossein Meftahi
- b Neuroscience Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Gila Pirzad Jahromi
- b Neuroscience Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Boshra Hatef
- b Neuroscience Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
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Bahari Z, Meftahi GH, Meftahi MA. Dopamine effects on stress-induced working memory deficits. Behav Pharmacol 2019; 29:584-591. [PMID: 30215620 DOI: 10.1097/fbp.0000000000000429] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The prefrontal cortex (PFC) plays a critical role in mediating executive functions and orchestrating the way in which we think, decide, and behave. Many studies have shown that PFC neurons not only play a major role in mediating behavioral responses to stress but are also sensitive to stress and undergo remodeling following stress exposure. Activation of the hypothalamic-pituitary-adrenal axis as a result of stress initiates a flood of alterations in prefrontal neurotransmitter release. Dopamine (DA) neurotransmission in the PFC is involved in the modulation of stress responsiveness. Compelling results show that stressful events are associated with increased DA concentrations in the medial PFC. Excessive DA-ergic activity in the medial prefrontal cortex following stress has a negative impact on working memory and executive functions in rodents, monkeys, and humans, making them unable to processing information selectively and impairing cognitive function. Therefore, an exact understanding of these mechanisms may provide important insights into the pathophysiology of executive dysfunction and novel treatment avenues. The present review provides a summary of the neuronal circuitry involved in alterations of PFC dopaminergic neurons under conditions of stress, and then addresses the interaction of PFC DA with glucocorticoids leading to impairment of working memory under conditions of stress.
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Affiliation(s)
- Zahra Bahari
- Department of Physiology and Medical Physic, Faculty of Medicine.,Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran
| | - Gholam H Meftahi
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran
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Khanegheini A, Meftahi GH, Zarrindast MR, Afarinesh MR, Sahraei H, Jahromi GP, Shahyad S. Involvement of CA1 GABAA Receptors in Ketamine-Induced Impairment of Spatial and Non-Spatial Novelty Detection in Mice. NEUROCHEM J+ 2019. [DOI: 10.1134/s1819712419010094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hadipour M, Kaka G, Bahrami F, Meftahi GH, Pirzad Jahromi G, Mohammadi A, Sahraei H. Crocin improved amyloid beta induced long-term potentiation and memory deficits in the hippocampal CA1 neurons in freely moving rats. Synapse 2018; 72:e22026. [DOI: 10.1002/syn.22026] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/17/2018] [Accepted: 01/18/2018] [Indexed: 01/15/2023]
Affiliation(s)
| | - Gholamreza Kaka
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences; Tehran Iran
| | - Farideh Bahrami
- Department of Physiology and Biophysics, Faculty of Medicine; Baqiyatallah University of Medical Sciences; Tehran Iran
| | | | - Gila Pirzad Jahromi
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences; Tehran Iran
| | - Alireza Mohammadi
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences; Tehran Iran
| | - Hedayat Sahraei
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences; Tehran Iran
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Hassantash M, Sahraei H, Bahari Z, Meftahi GH, Vesali R. The role of dopamine D2 receptors in the amygdala in metabolic and behavioral responses to stress in male Swiss-Webster mice. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/s11515-017-1455-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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