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Farahbakhsh Z, Radahmadi M. The protective effects of escitalopram on synaptic plasticity in the CA1 region of chronically stressed and non-stressed male rats. Int J Dev Neurosci 2022; 82:748-758. [PMID: 35971746 DOI: 10.1002/jdn.10224] [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: 06/05/2022] [Revised: 07/21/2022] [Accepted: 08/08/2022] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION Stress impairs cognitive processes and escitalopram affects them in various ways. The present study has compared the protective effects of two escitalopram doses on neural excitability and synaptic plasticity in the CA1 region of chronically stressed and non-stressed male rats. METHODS Forty-nine rats were randomly allocated into seven groups: control (Co), stress (St), sham (Sh), escitalopram 10 and 20 mg/kg (Esc10 & Esc20), stress-escitalopram 10 and 20 mg/kg (St-Esc10 & St-Esc20). Induction of restraint stress (6 h/day) and escitalopram injections were performed for 14 days. The fEPSP slope and amplitude were measured according to input-output functions and after the LTP induction in the hippocampal CA1 region. Also, serum corticosterone levels were evaluated in all experimental groups. RESULTS The fEPSP slope and amplitude decreased significantly in the St group and increased significantly in the Esc10 group compared to the Co group. In non-stressed states, significant increases in slope and amplitude occurred in the Esc10 group compared to the Esc20 group. Notably, these values were also significantly enhanced by both escitalopram doses under stressed conditions. Moreover, serum corticosterone levels significantly elevated in the St group although its levels decreased in both St-Esc groups compared to the St. CONCLUSION Stress significantly attenuated neural excitability and long-term plasticity in the CA1 area. Only escitalopram 10 mg/kg improved synaptic excitability, as well as LTP induction and maintenance in non-stressed subjects even more than normal levels. However, under stress conditions, both escitalopram doses enhanced neural excitability and memory probably due to reduced serum corticosterone levels.
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Affiliation(s)
- Zahra Farahbakhsh
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Radahmadi
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Joodaki M, Radahmadi M, Alaei H. Comparing the Therapeutic Effects of Crocin, Escitalopram and Co-Administration of Escitalopram and Crocin on Learning and Memory in Rats with Stress-Induced Depression. Malays J Med Sci 2021; 28:50-62. [PMID: 34512130 PMCID: PMC8407799 DOI: 10.21315/mjms2021.28.4.6] [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: 12/23/2020] [Accepted: 04/10/2021] [Indexed: 10/27/2022] Open
Abstract
Background Depression affects various brain functions. According to previous studies, escitalopram influences brain functions in depression and crocin reduces memory impairments. Therefore, this study aimed to compare the therapeutic effects of using crocin and escitalopram (separately and in combination) on learning and memory in rats with stress-induced depression. Methods Fifty-six rats were allocated into seven groups of control, sham, continuous depression, recovery period, daily injections of escitalopram, crocin and escitalopram-crocin during 14 days after inducing depression by stress. Passive avoidance (PA) test was used to assess brain functions. Results Latency has significant differences in depression group. Also, it significantly increased in depression-crocin, depression-escitalopram and depression-escitalopram-crocin groups compared to the depression group. The dark stay (DS) time was significantly higher in the depression and depression-recovery groups. However, the DS time significantly decreased in the depression-crocin, depression-escitalopram and depression-escitalopram-crocin groups. Furthermore, the number of entrances to the dark room was significantly lower in depression-crocin and depression-escitalopram-crocin groups compared to the depression one. Conclusion Different depression treatments (i.e. crocin, escitalopram and crocin-escitalopram) reduced depression-induced memory deficits. Crocin and escitalopram-crocin, respectively, improved brain functions and locomotor activity more than escitalopram. Comparatively, in subjects with depression, crocin, which is an effective saffron constituent, partially affected the memory deficits better than escitalopram (as a chemical component).
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Affiliation(s)
- Mehran Joodaki
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Radahmadi
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hojjatallah Alaei
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Therapeutic effects of exercise, escitalopram, and exercise-accompanied escitalopram on brain functions in rats with depression. PHYSIOLOGY AND PHARMACOLOGY 2021. [DOI: 10.52547/phypha.26.2.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Chen JL, Zhou X, Liu BL, Wei XH, Ding HL, Lin ZJ, Zhan HL, Yang F, Li WB, Xie JC, Su MZ, Liu XG, Zhou XF. Normalization of magnesium deficiency attenuated mechanical allodynia, depressive-like behaviors, and memory deficits associated with cyclophosphamide-induced cystitis by inhibiting TNF-α/NF-κB signaling in female rats. J Neuroinflammation 2020; 17:99. [PMID: 32241292 PMCID: PMC7118907 DOI: 10.1186/s12974-020-01786-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 03/25/2020] [Indexed: 01/01/2023] Open
Abstract
Background Bladder-related pain symptoms in patients with bladder pain syndrome/interstitial cystitis (BPS/IC) are often accompanied by depression and memory deficits. Magnesium deficiency contributes to neuroinflammation and is associated with pain, depression, and memory deficits. Neuroinflammation is involved in the mechanical allodynia of cyclophosphamide (CYP)-induced cystitis. Magnesium-L-Threonate (L-TAMS) supplementation can attenuate neuroinflammation. This study aimed to determine whether and how L-TAMS influences mechanical allodynia and accompanying depressive symptoms and memory deficits in CYP-induced cystitis. Methods Injection of CYP (50 mg/kg, intraperitoneally, every 3 days for 3 doses) was used to establish a rat model of BPS/IC. L-TAMS was administered in drinking water (604 mg·kg−1·day−1). Mechanical allodynia in the lower abdomen was assessed with von Frey filaments using the up-down method. Forced swim test (FST) and sucrose preference test (SPT) were used to measure depressive-like behaviors. Novel object recognition test (NORT) was used to detect short-term memory function. Concentrations of Mg2+ in serum and cerebrospinal fluid (CSF) were measured by calmagite chronometry. Western blot and immunofluorescence staining measured the expression of tumor necrosis factor-α/nuclear factor-κB (TNF-α/NF-κB), interleukin-1β (IL-1β), and N-methyl-d-aspartate receptor type 2B subunit (NR2B) of the N-methyl-d-aspartate receptor in the L6–S1 spinal dorsal horn (SDH) and hippocampus. Results Free Mg2+ was reduced in the serum and CSF of the CYP-induced cystitis rats on days 8, 12, and 20 after the first CYP injection. Magnesium deficiency in the serum and CSF correlated with the mechanical withdrawal threshold, depressive-like behaviors, and short-term memory deficits (STMD). Oral application of L-TAMS prevented magnesium deficiency and attenuated mechanical allodynia (n = 14) and normalized depressive-like behaviors (n = 10) and STMD (n = 10). The upregulation of TNF-α/NF-κB signaling and IL-1β in the L6–S1 SDH or hippocampus was reversed by L-TAMS. The change in NR2B expression in the SDH and hippocampus in the cystitis model was normalized by L-TAMS. Conclusions Normalization of magnesium deficiency by L-TAMS attenuated mechanical allodynia, depressive-like behaviors, and STMD in the CYP-induced cystitis model via inhibition of TNF-α/NF-κВ signaling and normalization of NR2B expression. Our study provides evidence that L-TAMS may have therapeutic value for treating pain and comorbid depression or memory deficits in BPS/IC patients.
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Affiliation(s)
- Jia-Liang Chen
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, 600 W Tianhe Rd, Guangzhou, 510630, China
| | - Xin Zhou
- Pain Research Center and Department of Physiology, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan Rd. 2, Guangzhou, 510080, China
| | - Bo-Long Liu
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, 600 W Tianhe Rd, Guangzhou, 510630, China
| | - Xu-Hong Wei
- Pain Research Center and Department of Physiology, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan Rd. 2, Guangzhou, 510080, China
| | - Hong-Lu Ding
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, 600 W Tianhe Rd, Guangzhou, 510630, China
| | - Zhi-Jun Lin
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, 600 W Tianhe Rd, Guangzhou, 510630, China
| | - Hai-Lun Zhan
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, 600 W Tianhe Rd, Guangzhou, 510630, China
| | - Fei Yang
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, 600 W Tianhe Rd, Guangzhou, 510630, China
| | - Wen-Biao Li
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, 600 W Tianhe Rd, Guangzhou, 510630, China
| | - Jun-Cong Xie
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, 600 W Tianhe Rd, Guangzhou, 510630, China
| | - Min-Zhi Su
- Department of Rehabilitation, The Third Affiliated Hospital and Lingnan Hospital of the Sun Yat-sen University, 2693 Kaichuang Rd, Guangzhou, 510700, China
| | - Xian-Guo Liu
- Pain Research Center and Department of Physiology, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan Rd. 2, Guangzhou, 510080, China. .,Guangdong Provincial Key Laboratory of Brain Function and Disease, 74 Zhongshan Rd. 2, Guangzhou, 510080, China.
| | - Xiang-Fu Zhou
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, 600 W Tianhe Rd, Guangzhou, 510630, China.
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Liu D, Hu XY, Xia HJ, Wang LJ, Shi P, Chen XP, Zhou QX. Antidepressant effect of venlafaxine in chronic unpredictable stress: Evidence of the involvement of key enzymes responsible for monoamine neurotransmitter synthesis and metabolism. Mol Med Rep 2019; 20:2954-2962. [PMID: 31322231 DOI: 10.3892/mmr.2019.10489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 06/12/2019] [Indexed: 11/06/2022] Open
Abstract
A number of studies have linked abnormalities in the function of the serotonergic and noradrenergic systems to the pathophysiology of depression. It has been reported that selective serotonin reuptake inhibitors promote the expression of tryptophan hydroxylase (TPH), which is involved in the synthesis of serotonin. However, limited evidence of TPH alteration has been found in selective serotonin and noradrenaline reuptake inhibitors (SNRIs), and more key enzymes need to be investigated. The aim of the present study was to determine whether venlafaxine (VLX; a classical SNRI) regulates TPH and other key enzymes responsible for the synthesis and metabolism of monoaminergic transmitters in rats with chronic unpredictable stress (CUS). The present results suggested that CUS‑exposed rats exhibited decreased locomotor activity in the open‑field test and increased immobility time in the forced swim test, as compared with the controls. Pretreatment with VLX (20 mg/kg) significantly increased locomotor activity and reduced immobility time in the CUS‑exposed rats. In addition, VLX (20 mg/kg) treatment prevented the CUS‑induced reduction in tyrosine hydroxylase and TPH expression in the cortex and hippocampus. Furthermore, VLX alleviated the CUS‑induced oxidative stress in the serum, cortex and hippocampus. However, VLX administration did not have an effect on indoleamine‑2,3‑dioxygenase overexpression in the hippocampus. It was therefore concluded that the regulation of abnormalities in the synthesis and metabolism of monoaminergic transmitters may be associated with the antidepressant effects of VLX, suggesting that multimodal pharmacological treatments can efficiently treat depression.
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Affiliation(s)
- Dan Liu
- Department of Pharmacy, Chongqing General Hospital, Chongqing 400013, P.R. China
| | - Xiao-Ya Hu
- Department of Pharmacy, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Hai-Jian Xia
- Department of Neurosurgery, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Li-Jia Wang
- Department of Pharmacy, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Ping Shi
- Department of Pharmacy, Chongqing General Hospital, Chongqing 400013, P.R. China
| | - Xiang-Pan Chen
- Department of Pharmacy, Chongqing General Hospital, Chongqing 400013, P.R. China
| | - Qi-Xin Zhou
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, P.R. China
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Belinskaia DA, Belinskaia MA, Barygin OI, Vanchakova NP, Shestakova NN. Psychotropic Drugs for the Management of Chronic Pain and Itch. Pharmaceuticals (Basel) 2019; 12:ph12020099. [PMID: 31238561 PMCID: PMC6631469 DOI: 10.3390/ph12020099] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 06/19/2019] [Accepted: 06/21/2019] [Indexed: 12/11/2022] Open
Abstract
Clinical observations have shown that patients with chronic neuropathic pain or itch exhibit symptoms of increased anxiety, depression and cognitive impairment. Such patients need corrective therapy with antidepressants, antipsychotics or anticonvulsants. It is known that some psychotropic drugs are also effective for the treatment of neuropathic pain and pruritus syndromes due to interaction with the secondary molecular targets. Our own clinical studies have identified antipruritic and/or analgesic efficacy of the following compounds: tianeptine (atypical tricyclic antidepressant), citalopram (selective serotonin reuptake inhibitor), mianserin (tetracyclic antidepressant), carbamazepine (anticonvulsant), trazodone (serotonin antagonist and reuptake inhibitor), and chlorprothixene (antipsychotic). Venlafaxine (serotonin-norepinephrine reuptake inhibitor) is known to have an analgesic effect too. The mechanism of such effect of these drugs is not fully understood. Herein we review and correlate the literature data on analgesic/antipruritic activity with pharmacological profile of these compounds.
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Affiliation(s)
- Daria A Belinskaia
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, pr. Torez 44, St. Petersburg 194223, Russia.
| | - Mariia A Belinskaia
- International Centre for Neurotherapeutics, Dublin City University, Glasnevin, Dublin 9, Ireland.
| | - Oleg I Barygin
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, pr. Torez 44, St. Petersburg 194223, Russia.
| | - Nina P Vanchakova
- Department of Pedagogy and Psychology, Faculty of Postgraduate Education, First Pavlov State Medical University, L'va Tolstogo str. 6-8, St. Petersburg 197022, Russia.
| | - Natalia N Shestakova
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, pr. Torez 44, St. Petersburg 194223, Russia.
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Ding N, Li Z, Liu Z. Escitalopram augmentation improves negative symptoms of treatment resistant schizophrenia patients – A randomized controlled trial. Neurosci Lett 2018; 681:68-72. [DOI: 10.1016/j.neulet.2018.05.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 05/17/2018] [Accepted: 05/20/2018] [Indexed: 12/28/2022]
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Cucurbitacin IIa exerts antidepressant-like effects on mice exposed to chronic unpredictable mild stress. Neuroreport 2018; 28:259-267. [PMID: 28240721 DOI: 10.1097/wnr.0000000000000747] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Cucurbitacin IIa (CuIIa) is the major active component of the Helmseya amabilis root and is known to have antiviral and anti-inflammatory effects. In this study, we examined the antidepressant-like effects of CuIIa in a mouse model of chronic unpredictable mild stress (CUMS) and investigated the possible underlying mechanisms. To evaluate the antidepressant-like effects of CuIIa on depression-like behaviors, mice were subjected to the open-field test, the elevated plus-maze test, the forced-swimming test, and the tail-suspension test. We found that CuIIa treatment reversed the CUMS-induced behavioral abnormalities. Western blot analyses showed that CUMS significantly decreased brain-derived neurotrophic factor (BDNF) levels, cAMP-response element binding protein (CREB), and calcium/calmodulin-dependent protein kinase II (CaMKII) phosphorylation, and N-methyl-D-aspartate receptor subtype GluN2B and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor GluA1 expression in the amygdala; in addition, the expression of gamma-aminobutyric acid receptor A subunit α2 was upregulated in CUMS mice. These CUMS-induced changes were all normalized by CuIIa treatment and administration of the BDNF antagonist ANA-12 can block the antidepressant effect of CuIIa. Our findings suggest that the antidepressant-like effects of CuIIa may be exerted by regulation of the CaMKIIα-CREB-BDNF pathway and the balance between excitatory and inhibitory synaptic transmission in the amygdala.
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Pacheco A, Aguayo FI, Aliaga E, Muñoz M, García-Rojo G, Olave FA, Parra-Fiedler NA, García-Pérez A, Tejos-Bravo M, Rojas PS, Parra CS, Fiedler JL. Chronic Stress Triggers Expression of Immediate Early Genes and Differentially Affects the Expression of AMPA and NMDA Subunits in Dorsal and Ventral Hippocampus of Rats. Front Mol Neurosci 2017; 10:244. [PMID: 28848384 PMCID: PMC5554379 DOI: 10.3389/fnmol.2017.00244] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 07/20/2017] [Indexed: 12/12/2022] Open
Abstract
Previous studies in rats have demonstrated that chronic restraint stress triggers anhedonia, depressive-like behaviors, anxiety and a reduction in dendritic spine density in hippocampal neurons. In this study, we compared the effect of repeated stress on the expression of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and N-methyl-D-aspartate (NMDA) receptor subunits in dorsal and ventral hippocampus (VH). Adult male Sprague-Dawley rats were randomly divided into control and stressed groups, and were daily restrained in their motion (2.5 h/day) during 14 days. We found that chronic stress promotes an increase in c-Fos mRNA levels in both hippocampal areas, although it was observed a reduction in the immunoreactivity at pyramidal cell layer. Furthermore, Arc mRNAs levels were increased in both dorsal and VH, accompanied by an increase in Arc immunoreactivity in dendritic hippocampal layers. Furthermore, stress triggered a reduction in PSD-95 and NR1 protein levels in whole extract of dorsal and VH. Moreover, a reduction in NR2A/NR2B ratio was observed only in dorsal pole. In synaptosomal fractions, we detected a rise in NR1 in dorsal hippocampus (DH). By indirect immunofluorescence we found that NR1 subunits rise, especially in neuropil areas of dorsal, but not VH. In relation to AMPA receptor (AMPAR) subunits, chronic stress did not trigger any change, either in dorsal or ventral hippocampal areas. These data suggest that DH is more sensitive than VH to chronic stress exposure, mainly altering the expression of NMDA receptor (NMDAR) subunits, and probably favors changes in the configuration of this receptor that may influence the function of this area.
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Affiliation(s)
- Anibal Pacheco
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de ChileIndependencia, Chile
| | - Felipe I Aguayo
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de ChileIndependencia, Chile
| | - Esteban Aliaga
- Department of Kinesiology, Faculty of Health Sciences, Universidad Católica del MauleTalca, Chile
| | - Mauricio Muñoz
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de ChileIndependencia, Chile
| | - Gonzalo García-Rojo
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de ChileIndependencia, Chile
| | - Felipe A Olave
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de ChileIndependencia, Chile
| | - Nicolas A Parra-Fiedler
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de ChileIndependencia, Chile
| | - Alexandra García-Pérez
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de ChileIndependencia, Chile
| | - Macarena Tejos-Bravo
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de ChileIndependencia, Chile
| | - Paulina S Rojas
- Faculty of Medicine, School of Pharmacy, Universidad Andres BelloSantiago, Chile
| | - Claudio S Parra
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de ChileIndependencia, Chile
| | - Jenny L Fiedler
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de ChileIndependencia, Chile
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Qiao H, An SC, Xu C, Ma XM. Role of proBDNF and BDNF in dendritic spine plasticity and depressive-like behaviors induced by an animal model of depression. Brain Res 2017; 1663:29-37. [DOI: 10.1016/j.brainres.2017.02.020] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 02/14/2017] [Accepted: 02/20/2017] [Indexed: 10/20/2022]
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Strasburger SE, Bhimani PM, Kaabe JH, Krysiak JT, Nanchanatt DL, Nguyen TN, Pough KA, Prince TA, Ramsey NS, Savsani KH, Scandlen L, Cavaretta MJ, Raffa RB. What is the mechanism of Ketamine's rapid-onset antidepressant effect? A concise overview of the surprisingly large number of possibilities. J Clin Pharm Ther 2017; 42:147-154. [PMID: 28111761 DOI: 10.1111/jcpt.12497] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 11/29/2016] [Indexed: 12/18/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Abundant clinical data now confirm that ketamine produces a remarkable rapid-onset antidepressant effect - hours or days - in contrast to the delayed onset (typically weeks) of current antidepressant drugs. This surprising and revolutionary finding may lead to the development of life-saving pharmacotherapy for depressive illness by reducing the high suicide risk associated with the delayed onset of effect of current drugs. As ketamine has serious self-limiting drawbacks that restrict its widespread use for this purpose, a safer alternative is needed. Our objective is to review the proposed mechanism(s) of ketamine's rapid-onset antidepressant action for new insights into the physiological basis of depressive illness that may lead to new and novel targets for antidepressant drug discovery. METHODS A search was conducted on published literature (e.g. PubMed) and Internet sources to identify information relevant to ketamine's rapid-acting antidepressant action and, specifically, to the possible mechanism(s) of this action. Key search words included 'ketamine', 'antidepressant', 'mechanism of action', 'depression' and 'rapid acting', either individually or in combination. Information was sought that would include less well-known, as well as well-known, basic pharmacologic properties of ketamine and that identified and evaluated the several hypotheses about ketamine's mechanism of antidepressant action. RESULTS Whether the mechanistic explanation for ketamine's rapid-onset antidepressant action is related to its well-known antagonism of the NMDA (N-Methyl-d-aspartate) subtype of glutamate receptor or to something else has not yet been fully elucidated. The evidence from pharmacologic, medicinal chemistry, animal model and drug-discovery sources reveals a wide variety of postulated mechanisms. WHAT IS NEW AND CONCLUSION The surprising discovery of ketamine's rapid-onset antidepressant effect is a game-changer for the understanding and treatment of depressive illness. There is some convergence on NMDA receptor antagonism as a likely, but to date unproven, common mechanism. The surprising number of other mechanisms, and the several novel biochemical aetiologies of depression proposed, suggests exciting new drug-discovery targets.
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Affiliation(s)
| | - P M Bhimani
- Temple University School of Pharmacy, Philadelphia, PA, USA
| | - J H Kaabe
- Temple University School of Pharmacy, Philadelphia, PA, USA
| | - J T Krysiak
- Temple University School of Pharmacy, Philadelphia, PA, USA
| | - D L Nanchanatt
- Temple University School of Pharmacy, Philadelphia, PA, USA
| | - T N Nguyen
- Temple University School of Pharmacy, Philadelphia, PA, USA
| | - K A Pough
- Temple University School of Pharmacy, Philadelphia, PA, USA
| | - T A Prince
- Temple University School of Pharmacy, Philadelphia, PA, USA
| | - N S Ramsey
- Temple University School of Pharmacy, Philadelphia, PA, USA
| | - K H Savsani
- Temple University School of Pharmacy, Philadelphia, PA, USA
| | - L Scandlen
- Temple University School of Pharmacy, Philadelphia, PA, USA
| | - M J Cavaretta
- Temple University School of Pharmacy, Philadelphia, PA, USA
| | - R B Raffa
- Temple University School of Pharmacy, Philadelphia, PA, USA.,University of Arizona College of Pharmacy, Tucson, AZ, USA
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She Y, Xu J, Duan Y, Su N, Sun Y, Cao X, Lao L, Zhang R, Xu S. Possible antidepressant effects and mechanism of electroacupuncture in behaviors and hippocampal synaptic plasticity in a depression rat model. Brain Res 2015; 1629:291-7. [PMID: 26505920 DOI: 10.1016/j.brainres.2015.10.033] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 10/15/2015] [Accepted: 10/16/2015] [Indexed: 01/13/2023]
Abstract
Increasing evidences show that hippocampal synaptic plasticity plays a crucial role in the pathogenesis of depression. The objective of this study was to determine whether electroacupuncture (EA) in the Wistar Kyoto (WKY) rat model of depression would exert antidepressant effects and whether this effect would be associated with changes in hippocampal synaptic plasticity. Male WKY rats were randomly divided into three groups (EA, sham EA, and blank control); Wister rats were used as normal control group. Treatment with EA was performed at Baihui (GV20) and Yintang (EX-HN3) once daily for 3 weeks. Forced swimming test (FST), open field test (OFT), and Morris water maze (MWM) were evaluated after 21-day intervention. Long-term potentiation (LTP) was evoked at Schaffer collateral-CA1 synapses in hippocampal slices in vitro. EA treatment significantly reduced immobility time in FST. MWM test showed a significant downward trend in escape latency time from the second to fifth days of experiment, and a higher frequency of crossing the missing quadrant platform in normal control and EA vs other groups. Impaired LTP was detected in Schaffer collateral-CA1 synapses in blank control and sham EA groups. In the western blot, the expression of GluN2B showed significant increase in EA vs sham EA and blank control groups. EA was able to improve depression-like behaviors and reverse the impairment of LTP, which were likely mediated by GluN2B in the hippocampus.
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Affiliation(s)
- Yanling She
- Shanghai Municipal Hospital of Traditional Chinese Medicine Shanghai, Shanghai University of TCM, Shanghai 200071, China; Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong No.2 Provincial People׳s hospital, Guangzhou 510317, China
| | - Jian Xu
- Shanghai Municipal Hospital of Traditional Chinese Medicine Shanghai, Shanghai University of TCM, Shanghai 200071, China
| | - Yanhong Duan
- Key Laboratory of Brain Functional Genomics of Ministry of Education, Shanghai Key Laboratory of Brain Functional Genomics, School of Life Sciences, East China Normal University, Shanghai 200062, China
| | - Ning Su
- Guangzhou University of Traditional Chinese Medicine, Guangzhou 510405, China
| | - Yanan Sun
- Shanghai Municipal Hospital of Traditional Chinese Medicine Shanghai, Shanghai University of TCM, Shanghai 200071, China
| | - Xiaohua Cao
- Guangzhou University of Traditional Chinese Medicine, Guangzhou 510405, China
| | - Lixing Lao
- School of Chinese Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong; University of Maryland, School of Medicine, Center for Integrative Medicine, Baltimore, MD 21201, USA
| | - Ruixin Zhang
- University of Maryland, School of Medicine, Center for Integrative Medicine, Baltimore, MD 21201, USA
| | - Shifen Xu
- Shanghai Municipal Hospital of Traditional Chinese Medicine Shanghai, Shanghai University of TCM, Shanghai 200071, China.
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13
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Doboszewska U, Szewczyk B, Sowa-Kućma M, Młyniec K, Rafało A, Ostachowicz B, Lankosz M, Nowak G. Antidepressant activity of fluoxetine in the zinc deficiency model in rats involves the NMDA receptor complex. Behav Brain Res 2015; 287:323-30. [PMID: 25845739 DOI: 10.1016/j.bbr.2015.03.064] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 03/27/2015] [Accepted: 03/29/2015] [Indexed: 01/28/2023]
Abstract
The zinc deficiency animal model of depression has been proposed; however, it has not been validated in a detailed manner. We have recently shown that depression-like behavior induced by dietary zinc restriction is associated with up-regulation of hippocampal N-methyl-d-aspartate receptor (NMDAR). Here we examined the effects of chronic administration of a selective serotonin reuptake inhibitor, fluoxetine (FLX), on behavioral and biochemical alterations (within NMDAR signaling pathway) induced by zinc deficiency. Male Sprague Dawley rats were fed a zinc adequate diet (ZnA, 50mg Zn/kg) or a zinc deficient diet (ZnD, 3mg Zn/kg) for 4 weeks. Then, FLX treatment (10mg/kg, i.p.) begun. Following 2 weeks of FLX administration the behavior of the rats was examined in the forced swim test (FST) and the spontaneous locomotor activity test. Twenty four hours later tissue was harvested. The proteins of NMDAR (GluN1, GluN2A and GluN2B) or AMPAR (GluA1) subunits, p-CREB and BDNF in the hippocampus (Western blot) and serum zinc level (TXRF) were examined. Depression-like behavior induced by ZnD in the FST was sensitive to chronic treatment with FLX. ZnD increased levels of GluN1, GluN2A, GluN2B and decreased pS485-GluA1, p-CREB and BDNF proteins. Administration of FLX counteracted the zinc restriction-induced changes in serum zinc level and hippocampal GluN1, GluN2A, GluN2B and p-CREB but not BDNF or pS845-GluA1 protein levels. This finding adds new evidence to the predictive validity of the proposed zinc deficiency model of depression. Antidepressant-like activity of FLX in the zinc deficiency model is associated with NMDAR complex.
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Affiliation(s)
- Urszula Doboszewska
- Department of Neurobiology, Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland.
| | - Bernadeta Szewczyk
- Department of Neurobiology, Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland
| | - Magdalena Sowa-Kućma
- Department of Neurobiology, Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland
| | - Katarzyna Młyniec
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Anna Rafało
- Department of Neurobiology, Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland
| | - Beata Ostachowicz
- Faculty of Physics and Applied Computer Sciences, AGH University of Science and Technology, Mickiewicza 30, PL 30-059 Kraków, Poland
| | - Marek Lankosz
- Faculty of Physics and Applied Computer Sciences, AGH University of Science and Technology, Mickiewicza 30, PL 30-059 Kraków, Poland
| | - Gabriel Nowak
- Department of Neurobiology, Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland; Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
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14
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Zhang X, Li X, Li M, Ren J, Yun K, An Y, Lin L, Zhang H. Venlafaxine increases cell proliferation and regulates DISC1, PDE4B and NMDA receptor 2B expression in the hippocampus in chronic mild stress mice. Eur J Pharmacol 2015; 755:58-65. [PMID: 25769842 DOI: 10.1016/j.ejphar.2015.02.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 02/19/2015] [Accepted: 02/24/2015] [Indexed: 10/23/2022]
Abstract
Recent evidence has identified disrupted in schizophrenia-1 (DISC1) as an important genetic risk factor for the development of many psychiatric disorders, including major depressive disorders. In addition, studies using animal models have demonstrated that chronic stress affects hippocampal structure and function. However, the functional effects of chronic stress on DISC1 remain unknown. Using a chronic mild stress (CMS) paradigm, we investigated the effects of CMS on depressive-like behaviors, hippocampal cell proliferation, and hippocampal protein expression of DISC1, phosphodiesterase 4B (PDE4B) and N-methyl-d-aspartate receptor 2B subunit (NMDA receptor 2B), which may be involved in the regulation of DISC1 and neurogenesis. We also examined the effects and possible mechanisms of the antidepressant venlafaxine in CMS mice. CMS increased the expression of DISC1 and PDE4B. Chronic treatment with venlafaxine blocked the increases in these proteins, and also reversed the CMS-induced decrease in neurogenesis and NMDA receptor 2B protein in the hippocampus. These results suggest that DISC1 may play an important role in the etiology of depression and in the action of antidepressants.
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Affiliation(s)
- Xinxin Zhang
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang 110001, China
| | - Xiaobai Li
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang 110001, China.
| | - Min Li
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang 110001, China
| | - Jintao Ren
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang 110001, China
| | - Ke Yun
- Department of Clinical Laboratory, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yan An
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang 110001, China
| | - Lei Lin
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang 110001, China
| | - Hailong Zhang
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang 110001, China
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15
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Cegielska-Perun K, Tatarkiewicz J, Siwek A, Dybała M, Bujalska-Zadrożny M. Mechanisms of morphine–venlafaxine interactions in diabetic neuropathic pain model. Pharmacol Rep 2015; 67:90-6. [DOI: 10.1016/j.pharep.2014.08.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 07/31/2014] [Accepted: 08/07/2014] [Indexed: 01/16/2023]
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16
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Antidepressant-like activity of magnesium in the chronic mild stress model in rats: alterations in the NMDA receptor subunits. Int J Neuropsychopharmacol 2014; 17:393-405. [PMID: 24067405 DOI: 10.1017/s1461145713001089] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Recent data suggests that the glutamatergic system is involved in the pathophysiology and treatment of major depressive disorder (MDD) and that the N-methyl-D-aspartate (NMDA) receptor is a potential target for antidepressant drugs. The magnesium ion blocks the ion channel of the NMDA receptor and prevents its excessive activation. Some preclinical and clinical evidence suggests also that magnesium may be useful in the treatment of depression. The present study investigated the effect of magnesium treatment (10, 15 and 20 mg/kg, given as magnesium hydroaspartate) in the chronic mild stress (CMS) model of depression in rats. Moreover, the effect of CMS and magnesium (with an effective dose) on the level of the proteins related to the glutamatergic system (GluN1, GluN2A, GluN2B and PSD-95) in the hippocampus, prefrontal cortex (PFC) and amygdala were examined. A significant reduction in the sucrose intake induced by CMS was increased by magnesium treatment at a dose of 15 mg/kg, beginning from the third week of administration. Magnesium did not affect this behavioural parameter in the control animals. CMS significantly increased the level of the GluN1 subunit in the amygdala (by 174%) and GluN2A in the hippocampus (by 191%), both of which were significantly attenuated by magnesium treatment. Moreover, magnesium treatment in CMS animals increased the level of GluN2B (by 116%) and PSD-95 (by 150%) in the PFC. The present results for the first time demonstrate the antidepressant-like activity of magnesium in the animal model of anhedonia (CMS), thus indicating the possible involvement of the NMDA/glutamatergic receptors in this activity.
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17
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Skuza G. Ethanol withdrawal-induced depressive symptoms in animals and therapeutic potential of sigma1 receptor ligands. Pharmacol Rep 2013; 65:1681-7. [DOI: 10.1016/s1734-1140(13)71530-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Revised: 12/04/2013] [Indexed: 02/01/2023]
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