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Francis T, Leri F. Role of dopamine D1 receptor in the modulation of memory consolidation by passive and self-administered heroin and associated conditioned stimuli. Sci Rep 2023; 13:12614. [PMID: 37537211 PMCID: PMC10400648 DOI: 10.1038/s41598-023-39380-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 07/25/2023] [Indexed: 08/05/2023] Open
Abstract
It has been proposed that opiates modulate memory consolidation, but recent work has indicated that this effect may be mediated by how the drug is experienced (i.e., passive injections vs. self-administration). Because the dopamine (DA) D1 receptor is involved in processing of learning signals and attribution of salience to events experienced by an organism, two studies in male Sprague-Dawley rats tested the effect of blocking this receptor on modulation of memory consolidation by passive and self-administered heroin, in addition to conditioned memory modulation by heroin-paired cues. Using the object location memory task, Study 1 employed SCH23390 (0, 0.05, 0.10 mg/kg, SC) to modulate enhancement of memory consolidation induced by post-training injections of heroin (1 mg/kg, SC) as well as by exposure to the environment paired with heroin injections (6 pairings, 1 h each, 1 mg/kg). Study 2 was conducted in rats that could self-administer heroin (0.05 mg/kg/infusion, IV) and tested whether SCH23390 (0 and 0.1 mg/kg, SC) could prevent memory modulation induced by a change in schedule of self-administration (from fixed to variable ratio). It was found that while repeated passive injections of heroin retained their enhancing effect on memory, when self-administered, heroin enhanced consolidation of object location memory only at the beginning of self-administration and after a change in schedule. Importantly, SCH23390 blocked memory modulation by heroin when passively administered and when the drug was self-administered on a novel schedule. SCH23390 also blocked conditioned memory modulation induced by post-training exposure to heroin-paired cues. Taken together, these results suggest that modulation of memory consolidation by unconditioned and conditioned opiate reinforcers involve a D1-dependent mechanism of salience attribution linked to the anticipation of drug effects.
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Affiliation(s)
- Travis Francis
- Department of Psychology and Collaborative Program in Neuroscience, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Francesco Leri
- Department of Psychology and Collaborative Program in Neuroscience, University of Guelph, Guelph, ON, N1G 2W1, Canada.
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Orhan MF, Tanyeri P, Büyükokuroğlu ME, Büyükavci M. The effect of early and long-term propranolol therapy on learning and memory in mice. Behav Pharmacol 2023; 34:206-212. [PMID: 37171459 DOI: 10.1097/fbp.0000000000000725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Propranolol is the treatment of choice for infantile hemangioma. We investigated the effects of long-term propranolol use in early infancy on learning and memory later in life in mice. At three weeks of age, mice were randomly divided into six experimental groups. Groups 1 and 2 (controls) received only saline for 21 days. Groups 3 and 4 received propranolol (2.5 mg/kg) for 21 days. Groups 5 and 6 received propranolol (5 mg/kg) for 21 days. Groups 1, 3 and 5 were tested at the end of 21 days of treatment (week 6). However, groups 2, 4 and 6 received a 2-week break and then (week 8) exposed to tests. In the Morris water maze test, propranolol (2.5 and 5 mg/kg) dose-dependently increased the time spent in the target quadrant in mice at weeks 6 and 8. However, propranolol did not affect the swimming speed in both time periods. There were no significant effects of propranolol on the number of errors evaluated during the radial arm maze tests. In conclusion, long-term use of propranolol in early infancy did not disrupt the learning and memory of mice.
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Affiliation(s)
| | - Pelin Tanyeri
- Department of Pharmacology, Sakarya University Faculty of Medicine, Sakarya, Turkey
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Lapointe T, Francis T, Doray K, Leri F. Enhancement of memory consolidation by an avoidance conditioned stimulus: Modulation by the D3 receptor. Neuropharmacology 2023; 235:109572. [PMID: 37149214 DOI: 10.1016/j.neuropharm.2023.109572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/08/2023]
Abstract
Conditioned stimuli (CS) paired with foot-shock can enhance memory consolidation. Because the dopamine D3R has been implicated in mediating various responses to CSs, the current study explored its potential role in modulation of memory consolidation by an avoidance CS. Male Sprague-Dawley rats trained to avoid foot-shocks in a two-way signalled active avoidance task (8 sessions, 30 trials per session, 0.8 mA foot-shock) were pre-treated with the D3R antagonist NGB-2904 (Vehicle, 0.1 or 5 mg/kg) and exposed to the CS immediately after the sample phase of an object recognition memory task. Discrimination ratios were assessed 72 h later. Immediate, but not delayed (6 h), post-sample exposure to the CS enhanced object recognition memory and this effect was dose-dependently blocked by NGB-2904. Control experiments with the beta-noradrenergic receptor antagonist propranolol (10 or 20 mg/kg) and D2R antagonist pimozide (0.2 or 0.6 mg/kg) indicated that NGB-2904 targeted post-training memory consolidation. Exploring the pharmacological selectivity of the D3R effect, it was found that: 1) 5 mg/kg NGB-2904 blocked conditioned memory modulation produced by post-sample exposure to a "weak" CS (one day of avoidance training) and concurrent stimulation of catecholamine activity by 10 mg/kg bupropion; 2) post-sample exposure to a "weak" CS and concurrent administration of the D3R agonist 7-OH-DPAT (1 mg/kg) enhanced consolidation of object memory. Finally, because 5 mg/kg NGB-2904 had no effect on modulation by avoidance training in the presence of foot-shocks, the findings herein support the hypothesis that the D3R plays an important role in modulation of memory consolidation by CSs.
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Affiliation(s)
- Thomas Lapointe
- Department of Psychology and Collaborative Program in Neuroscience, University of Guelph, Guelph, ON, Canada
| | - Travis Francis
- Department of Psychology and Collaborative Program in Neuroscience, University of Guelph, Guelph, ON, Canada
| | - Kamrani Doray
- Department of Psychology and Collaborative Program in Neuroscience, University of Guelph, Guelph, ON, Canada
| | - Francesco Leri
- Department of Psychology and Collaborative Program in Neuroscience, University of Guelph, Guelph, ON, Canada.
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Sivalingam M, Ogawa S, Parhar IS. Habenula kisspeptin retrieves morphine impaired fear memory in zebrafish. Sci Rep 2020; 10:19569. [PMID: 33177592 PMCID: PMC7659006 DOI: 10.1038/s41598-020-76287-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 10/05/2020] [Indexed: 12/20/2022] Open
Abstract
The habenula is an evolutionarily conserved brain structure, which has recently been implicated in fear memory. In the zebrafish, kisspeptin (Kiss1) is predominantly expressed in the habenula, which has been implicated as a modulator of fear response. Hence, in the present study, we questioned whether Kiss1 has a role in fear memory and morphine-induced fear memory impairment using an odorant cue (alarm substances, AS)-induced fear avoidance paradigm in adult zebrafish, whereby the fear-conditioned memory can be assessed by a change of basal place preference (= avoidance) of fish due to AS-induced fear experience. Subsequently, to examine the possible role of Kiss1 neurons-serotonergic pathway, kiss1 mRNA and serotonin levels were measured. AS exposure triggered fear episodes and fear-conditioned place avoidance. Morphine treatment followed by AS exposure, significantly impaired fear memory with increased time-spent in AS-paired compartment. However, fish administered with Kiss1 (10–21 mol/fish) after morphine treatment had significantly lower kiss1 mRNA levels but retained fear memory. In addition, the total brain serotonin levels were significantly increased in AS- and Kiss1-treated groups as compared to control and morphine treated group. These results suggest that habenular Kiss1 might be involved in consolidation or retrieval of fear memory through the serotonin system.
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Affiliation(s)
- Mageswary Sivalingam
- Brain Research Institute, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500, Subang Jaya, Selangor, Malaysia
| | - Satoshi Ogawa
- Brain Research Institute, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500, Subang Jaya, Selangor, Malaysia
| | - Ishwar S Parhar
- Brain Research Institute, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500, Subang Jaya, Selangor, Malaysia.
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Wolter M, Huff AE, Baidoo N, Jardine KH, Pulles Z, Winters BD, Leri F. Modulation of object memory consolidation by heroin and heroin-conditioned stimuli: Role of opioid and noradrenergic systems. Eur Neuropsychopharmacol 2020; 33:146-157. [PMID: 32067860 DOI: 10.1016/j.euroneuro.2020.01.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/21/2019] [Accepted: 01/22/2020] [Indexed: 11/18/2022]
Abstract
There is recent evidence that cocaine, nicotine, and their conditioned stimuli have the ability to enhance memory consolidation. The present study compared the effects of post-training heroin and of a heroin contextual conditioned stimulus (CS+) on consolidation of object recognition memory and investigated the roles of opioid and beta-adrenergic receptors in heroin/CS+ memory modulation by co-administering the respective antagonists, naltrexone (NTX) and propranolol (PRO). Three experiments were performed in male Sprague-Dawley rats demonstrating that immediate, but not delayed, post-sample exposure to heroin (0.3, 1 mg/kg), or exposure (30 min) to a contextual CS+ paired with 1 mg/kg heroin (5 pairings, each 120 min), equally enhanced object memory. Importantly, while the memory enhancing effects of 1 mg/kg heroin and of the contextual CS+ were not altered by post-training co-administration of 3 mg/kg naltrexone, they were blocked by post-training co-administration of 10 mg/kg propranolol. Taken together, these data suggest that a context paired with heroin shares the memory enhancing effect of heroin itself and that these unconditioned and conditioned drug stimuli may modulate memory through the activation of beta-noradrenergic receptors.
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Affiliation(s)
- Michael Wolter
- Department of Psychology & Collaborative Neuroscience Program, University of Guelph, 50 Stone Road East, N1G 2W1 Guelph, ON, Canada
| | - Andrew E Huff
- Department of Psychology & Collaborative Neuroscience Program, University of Guelph, 50 Stone Road East, N1G 2W1 Guelph, ON, Canada
| | - Nana Baidoo
- Department of Psychology & Collaborative Neuroscience Program, University of Guelph, 50 Stone Road East, N1G 2W1 Guelph, ON, Canada
| | - Kristen H Jardine
- Department of Psychology & Collaborative Neuroscience Program, University of Guelph, 50 Stone Road East, N1G 2W1 Guelph, ON, Canada
| | - Zoey Pulles
- Department of Psychology & Collaborative Neuroscience Program, University of Guelph, 50 Stone Road East, N1G 2W1 Guelph, ON, Canada
| | - Boyer D Winters
- Department of Psychology & Collaborative Neuroscience Program, University of Guelph, 50 Stone Road East, N1G 2W1 Guelph, ON, Canada
| | - Francesco Leri
- Department of Psychology & Collaborative Neuroscience Program, University of Guelph, 50 Stone Road East, N1G 2W1 Guelph, ON, Canada.
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Kushwaha A, Thakur MK. Increase in hippocampal histone H3K9me3 is negatively correlated with memory in old male mice. Biogerontology 2019; 21:175-189. [DOI: 10.1007/s10522-019-09850-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/15/2019] [Indexed: 02/08/2023]
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Li D, Ke Y, Zhan R, Liu C, Zhao M, Zeng A, Shi X, Ji L, Cheng S, Pan B, Zheng L, Hong H. Trimethylamine-N-oxide promotes brain aging and cognitive impairment in mice. Aging Cell 2018; 17:e12768. [PMID: 29749694 PMCID: PMC6052480 DOI: 10.1111/acel.12768] [Citation(s) in RCA: 169] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2018] [Indexed: 12/21/2022] Open
Abstract
Gut microbiota can influence the aging process and may modulate aging‐related changes in cognitive function. Trimethylamine‐N‐oxide (TMAO), a metabolite of intestinal flora, has been shown to be closely associated with cardiovascular disease and other diseases. However, the relationship between TMAO and aging, especially brain aging, has not been fully elucidated. To explore the relationship between TMAO and brain aging, we analysed the plasma levels of TMAO in both humans and mice and administered exogenous TMAO to 24‐week‐old senescence‐accelerated prone mouse strain 8 (SAMP8) and age‐matched senescence‐accelerated mouse resistant 1 (SAMR1) mice for 16 weeks. We found that the plasma levels of TMAO increased in both the elderly and the aged mice. Compared with SAMR1‐control mice, SAMP8‐control mice exhibited a brain aging phenotype characterized by more senescent cells in the hippocampal CA3 region and cognitive dysfunction. Surprisingly, TMAO treatment increased the number of senescent cells, which were primarily neurons, and enhanced the mitochondrial impairments and superoxide production. Moreover, we observed that TMAO treatment increased synaptic damage and reduced the expression levels of synaptic plasticity‐related proteins by inhibiting the mTOR signalling pathway, which induces and aggravates aging‐related cognitive dysfunction in SAMR1 and SAMP8 mice, respectively. Our findings suggested that TMAO could induce brain aging and age‐related cognitive dysfunction in SAMR1 mice and aggravate the cerebral aging process of SAMP8 mice, which might provide new insight into the effects of intestinal microbiota on the brain aging process and help to delay senescence by regulating intestinal flora metabolites.
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Affiliation(s)
- Dang Li
- Department of Geriatrics; Fujian Medical University Union Hospital; Fuzhou China
| | - Yilang Ke
- Department of Geriatrics; Fujian Medical University Union Hospital; Fuzhou China
| | - Rui Zhan
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine; School of Basic Medical Sciences; Peking University Health Science Center; Key Laboratory of Molecular Cardiovascular Science; Ministry of Education; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides; Ministry of Health; Beijing Key Laboratory of Cardiovascular Receptors Research; Beijing China
| | - Changjie Liu
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine; School of Basic Medical Sciences; Peking University Health Science Center; Key Laboratory of Molecular Cardiovascular Science; Ministry of Education; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides; Ministry of Health; Beijing Key Laboratory of Cardiovascular Receptors Research; Beijing China
| | - Mingming Zhao
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine; School of Basic Medical Sciences; Peking University Health Science Center; Key Laboratory of Molecular Cardiovascular Science; Ministry of Education; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides; Ministry of Health; Beijing Key Laboratory of Cardiovascular Receptors Research; Beijing China
| | - Aiping Zeng
- Department of Cardiology; Fujian Medical University Union Hospital; Fuzhou China
| | - Xiaoyun Shi
- Department of Geriatrics; Fujian Medical University Union Hospital; Fuzhou China
| | - Liang Ji
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine; School of Basic Medical Sciences; Peking University Health Science Center; Key Laboratory of Molecular Cardiovascular Science; Ministry of Education; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides; Ministry of Health; Beijing Key Laboratory of Cardiovascular Receptors Research; Beijing China
| | - Si Cheng
- China National Clinical Research Center for Neurological Diseases; Tiantan Hospital; The Capital Medical University; Beijing China
| | - Bing Pan
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine; School of Basic Medical Sciences; Peking University Health Science Center; Key Laboratory of Molecular Cardiovascular Science; Ministry of Education; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides; Ministry of Health; Beijing Key Laboratory of Cardiovascular Receptors Research; Beijing China
| | - Lemin Zheng
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine; School of Basic Medical Sciences; Peking University Health Science Center; Key Laboratory of Molecular Cardiovascular Science; Ministry of Education; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides; Ministry of Health; Beijing Key Laboratory of Cardiovascular Receptors Research; Beijing China
- Fujian Medical University Union Hospital; Fuzhou China
| | - Huashan Hong
- Department of Geriatrics; Fujian Medical University Union Hospital; Fuzhou China
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Shafaroodi H, Khosravani E, Fakhrzad A, Moezi L. The interaction between morphine and propranolol in chemical and electrical seizure models of mice. Neurol Res 2016; 38:166-76. [DOI: 10.1080/01616412.2015.1136779] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Shang CY, Chiang HL, Gau SSF. A haplotype of the norepinephrine transporter gene (SLC6A2) is associated with visual memory in attention-deficit/hyperactivity disorder. Prog Neuropsychopharmacol Biol Psychiatry 2015; 58:89-96. [PMID: 25554436 DOI: 10.1016/j.pnpbp.2014.12.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 12/17/2014] [Accepted: 12/23/2014] [Indexed: 11/25/2022]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a common heritable childhood-onset psychiatric disorder with impaired visual memory. Based on the evidence from treatment effect of atomoxetine, which interacts directly with the norepinephrine transporter, on visual memory in children with ADHD, this study examined the linkage disequilibrium structure of the norepinephrine transporter gene (SLC6A2) and the association between SLC6A2 and ADHD and visual memory, a promising endophenotype for ADHD. This family-based association sample consisted of 382 probands with DSM-IV ADHD and their family members (n=1298 in total) of Han Chinese in Taiwan. Visual memory was assessed by the Pattern Recognition Memory (PRM) and Spatial Recognition Memory (SRM) tasks of the Cambridge Neuropsychological Test Automated Battery (CANTAB). We screened 21 polymorphisms across SLC6A2 and used the Family-Based Association Test (FBAT) to test the associations of SLC6A2 polymorphisms with ADHD and the PRM and SRM measures. In haplotype analyses, a haplotype rs36011 (T)/rs1566652 (G) was significantly associated with ADHD (minimal p=0.045) after adjustment for multiple testing. In quantitative analyses, this TG haplotype also demonstrated significant associations with visual memory measures, including mean latency of correct responses in PRM (minimal p=0.019), total correct responses in PRM (minimal p=0.018), and total correct responses in SRM (minimal p=0.015). Our novel finding of the haplotype rs36011 (T)/rs1566652 (G) as a novel genetic marker involved in both ADHD disease susceptibility and visual memory suggests that allelic variations in SLC6A2 could provide insight into the pathways leading from genotype to phenotype of ADHD.
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Affiliation(s)
- Chi-Yung Shang
- Department of Psychiatry, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Huey-Ling Chiang
- Department of Psychiatry, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan; Department of Psychiatry, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Susan Shur-Fen Gau
- Department of Psychiatry, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Brain and Mind Sciences and Clinical Medicine, National Taiwan University, Taipei, Taiwan.
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10
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Anxiety- and depressive-like behaviors in olfactory deficient Cnga2 knockout mice. Behav Brain Res 2014; 275:219-24. [DOI: 10.1016/j.bbr.2014.08.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 08/14/2014] [Accepted: 08/23/2014] [Indexed: 10/24/2022]
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Torkaman-Boutorabi A, Hashemi-Hezaveh SM, Sheidadoust H, Zarrindast MR. The Possible Role of Medial Prefrontal Cortex Beta-1-Adrenoceptors in Morphine-Induced Amnesia. Pharmacology 2014; 93:272-7. [DOI: 10.1159/000362282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 03/17/2014] [Indexed: 11/19/2022]
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Conversi D, Cruciani F, Accoto A, Cabib S. Positive emotional arousal increases duration of memory traces: different role of dopamine D1 receptor and β-adrenoceptor activation. Pharmacol Biochem Behav 2014; 122:158-63. [PMID: 24727402 DOI: 10.1016/j.pbb.2014.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 02/19/2014] [Accepted: 04/02/2014] [Indexed: 11/16/2022]
Abstract
We investigated the effects of post-training administration of dopamine D1 receptor antagonist SCH 23390 and β-adrenergic receptor antagonist Propranolol on memory retention of an object sampled in a state of positive emotional arousal. Saline-treated mice trained and tested under high emotional/motivational arousal (High) showed discrimination of a novel object both 24 and 96 h post-training. Instead, mice trained and tested under low motivational arousal (Low) were unable to discriminate the novel object 96 h post-training. Both a high (2 mg/kg) and a low (1 mg/kg) dose of Propranolol reduced object discrimination in High mice tested 24 h post-training, whereas neither dose was effective in Low mice. A high dose of SCH 23390 (0.025 mg/kg) reduced discrimination of the novel object in High mice tested both 24 and 96 h post-training, whereas a low dose of the D1 antagonist (0.01 mg/kg) reduced discrimination in High mice tested 96 h post-training and abolished discrimination in Low mice tested 24h after training.
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Affiliation(s)
- D Conversi
- Department of Psychology, Center D. Bovet, University "Sapienza", Rome, Italy; Fondazione Santa Lucia IRCCS, European Centre for Brain Research, Rome, Italy.
| | - F Cruciani
- Department of Psychology, Center D. Bovet, University "Sapienza", Rome, Italy
| | - A Accoto
- Department of Psychology, Center D. Bovet, University "Sapienza", Rome, Italy
| | - S Cabib
- Department of Psychology, Center D. Bovet, University "Sapienza", Rome, Italy; Fondazione Santa Lucia IRCCS, European Centre for Brain Research, Rome, Italy
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Droney JM, Gretton SK, Sato H, Ross JR, Branford R, Welsh KI, Cookson W, Riley J. Analgesia and central side-effects: two separate dimensions of morphine response. Br J Clin Pharmacol 2013; 75:1340-50. [PMID: 23072578 DOI: 10.1111/bcp.12008] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Accepted: 10/09/2012] [Indexed: 11/29/2022] Open
Abstract
AIMS To present a statistical model for defining interindividual variation in response to morphine and to use this model in a preliminary hypothesis-generating multivariate genetic association study. METHODS Two hundred and sixty-four cancer patients taking oral morphine were included in a prospective observational study. Pain and morphine side-effect scores were examined using principal components analysis. The resulting principal components were used in an exploratory genetic association study of single nucleotide polymorphisms across the genes coding for the three opioid receptors, OPRM1, OPRK1 and OPRD1. Associations in multivariate models, including potential clinical confounders, were explored. RESULTS Two principal components corresponding to residual pain and central side-effects were identified. These components accounted for 42 and 18% of the variability in morphine response, respectively, were independent of each other and only mildly correlated. The genetic and clinical factors associated with these components were markedly different. Multivariate regression modelling, including clinical and genetic factors, accounted for only 12% of variability in residual pain on morphine and 3% of variability in central side-effects. CONCLUSIONS Although replication is required, this data-driven analysis suggests that pain and central side-effects on morphine may be two separate dimensions of morphine response. Larger study samples are necessary to investigate potential genetic and clinical associations comprehensively.
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Yang L, Zhang J, Zheng K, Shen H, Chen X. Long-term Ginsenoside Rg1 Supplementation Improves Age-Related Cognitive Decline by Promoting Synaptic Plasticity Associated Protein Expression in C57BL/6J Mice. J Gerontol A Biol Sci Med Sci 2013; 69:282-94. [DOI: 10.1093/gerona/glt091] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Khajehpour L, Fathinia K, Moazedi AA, Kesmati M. Вeta1-Adrenoreceptors of the CA1 Area Mediate Morphine-Modified State-Dependent Memory in Rats. NEUROPHYSIOLOGY+ 2013. [DOI: 10.1007/s11062-013-9350-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Shang CY, Gau SSF. Improving visual memory, attention, and school function with atomoxetine in boys with attention-deficit/hyperactivity disorder. J Child Adolesc Psychopharmacol 2012; 22:353-63. [PMID: 23083022 DOI: 10.1089/cap.2011.0149] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Atomoxetine is efficacious in reducing symptoms of attention- deficit/hyperactivity disorder (ADHD), but its effect on visual memory and attention needs more investigation. This study aimed to assess the effect of atomoxetine on visual memory, attention, and school function in boys with ADHD in Taiwan. METHOD This was an open-label 12 week atomoxetine treatment trial among 30 drug-naíve boys with ADHD, aged 8-16 years. Before administration of atomoxetine, the participants were assessed using psychiatric interviews, the Wechsler Intelligence Scale for Children, 3rd edition (WISC-III), the school function of the Chinese version of the Social Adjustment Inventory for Children and Adolescents (SAICA), the Conners' Continuous Performance Test (CPT), and the tasks of the Cambridge Neuropsychological Test Automated Battery (CANTAB) involving visual memory and attention: Pattern Recognition Memory, Spatial Recognition Memory, and Reaction Time, which were reassessed at weeks 4 and 12. RESULTS Our results showed there was significant improvement in pattern recognition memory and spatial recognition memory as measured by the CANTAB tasks, sustained attention and response inhibition as measured by the CPT, and reaction time as measured by the CANTAB after treatment with atomoxetine for 4 weeks or 12 weeks. In addition, atomoxetine significantly enhanced school functioning in children with ADHD. CONCLUSION Our findings suggested that atomoxetine was associated with significant improvement in visual memory, attention, and school functioning in boys with ADHD.
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Affiliation(s)
- Chi-Yung Shang
- Department of Psychiatry, National Taiwan University Hospital & College of Medicine, National Taiwan University, Taipei, Taiwan
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Interactive effects of morphine and scopolamine, MK-801, propanolol on spatial working memory in rhesus monkeys. Neurosci Lett 2012; 523:119-24. [DOI: 10.1016/j.neulet.2012.06.056] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Revised: 06/05/2012] [Accepted: 06/20/2012] [Indexed: 11/23/2022]
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Modulatory effects of two novel agonists for serotonin receptor 7 on emotion, motivation and circadian rhythm profiles in mice. Neuropharmacology 2012; 62:833-42. [DOI: 10.1016/j.neuropharm.2011.09.012] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 09/07/2011] [Accepted: 09/10/2011] [Indexed: 11/20/2022]
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Sun H, Mao Y, Wang J, Ma Y. Effects of beta-adrenergic antagonist, propranolol on spatial memory and exploratory behavior in mice. Neurosci Lett 2011; 498:133-7. [DOI: 10.1016/j.neulet.2011.04.076] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Revised: 04/22/2011] [Accepted: 04/29/2011] [Indexed: 10/18/2022]
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Pinton S, da Rocha JT, Gai BM, Prigol M, da Rosa LV, Nogueira CW. Neuroprotector effect of p,p'-methoxyl-diphenyl diselenide in a model of sporadic dementia of Alzheimer's type in mice: contribution of antioxidant mechanism. Cell Biochem Funct 2011; 29:235-43. [DOI: 10.1002/cbf.1741] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Revised: 12/28/2010] [Accepted: 01/25/2011] [Indexed: 11/09/2022]
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Chen Y, Mao Y, Zhou D, Hu X, Wang J, Ma Y. Environmental enrichment and chronic restraint stress in ICR mice: effects on prepulse inhibition of startle and Y-maze spatial recognition memory. Behav Brain Res 2010; 212:49-55. [PMID: 20359501 DOI: 10.1016/j.bbr.2010.03.033] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Revised: 03/16/2010] [Accepted: 03/19/2010] [Indexed: 11/19/2022]
Abstract
In most studies regarding the improving or therapeutical effects induced by enriched environment (EE), EE was performed after the stress treatment or in patients with certain diseases. In the current study, the effects of chronic restraint stress (6h/day) in mice living in an enriched environment or standard environment (SE) were tested. Mice were randomly divided into 4 groups: non-stressed or stressed mice housed in SE or EE conditions (SE, stress+SE, EE, stress+EE). Prepulse inhibition (PPI) of startle was tested after the 2 weeks or 4 weeks stress and/or EE treatment and 1 or 2 weeks withdrawal from the 4 weeks treatment. After the 4 weeks treatment, spatial recognition memory in Y-maze was also tested. The results showed that EE increased PPI in stressed and non-stressed mice after 2 weeks treatment. No effect of EE on PPI was found after the 4 weeks treatment. 4 weeks chronic restraint stress increased PPI in mice housed in standard but not EE conditions. Stressed mice showed deficits on the 1h delay version of the Y-maze which could be prevented by living in an enriched environment. Our results indicated that living in an enriched environment reversed the impairing effects of chronic restraint stress on spatial recognition memory. However, EE did not change the effects of stress on PPI.
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Affiliation(s)
- Yanmei Chen
- State Key Laboratory of Brain and Cognitive Sciences, Kunming Institute of Zoology, Chinese Academy of Sciences, #32 Jiao Chang Dong Lu, Kunming, Yunnan, 650223, PR China
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Abstract
This paper is the 31st consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2008 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (Section 2), and the roles of these opioid peptides and receptors in pain and analgesia (Section 3); stress and social status (Section 4); tolerance and dependence (Section 5); learning and memory (Section 6); eating and drinking (Section 7); alcohol and drugs of abuse (Section 8); sexual activity and hormones, pregnancy, development and endocrinology (Section 9); mental illness and mood (Section 10); seizures and neurologic disorders (Section 11); electrical-related activity and neurophysiology (Section 12); general activity and locomotion (Section 13); gastrointestinal, renal and hepatic functions (Section 14); cardiovascular responses (Section 15); respiration and thermoregulation (Section 16); and immunological responses (Section 17).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, 65-30 Kissena Blvd, Flushing, NY 11367, United States.
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