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Hart XM, Spangemacher M, Defert J, Uchida H, Gründer G. Update Lessons from PET Imaging Part II: A Systematic Critical Review on Therapeutic Plasma Concentrations of Antidepressants. Ther Drug Monit 2024; 46:155-169. [PMID: 38287888 DOI: 10.1097/ftd.0000000000001142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 07/29/2023] [Indexed: 01/31/2024]
Abstract
BACKGROUND Compared with antipsychotics, the relationship between antidepressant blood (plasma or serum) concentrations and target engagement is less well-established. METHODS We have discussed the literature on the relationship between plasma concentrations of antidepressant drugs and their target occupancy. Antidepressants reviewed in this work are citalopram, escitalopram, fluoxetine, fluvoxamine, paroxetine, sertraline, venlafaxine, duloxetine, milnacipran, tricyclic antidepressants (amitriptyline, nortriptyline, and clomipramine), bupropion, tranylcypromine, moclobemide, and vortioxetine. Four electronic databases were systematically searched. RESULTS We included 32 articles published 1996-2022. A strong relationship between serotonin transporter (SERT) occupancy and drug concentration is well established for selective serotonin reuptake inhibitors. Lower limits of recommended therapeutic reference ranges largely corroborate with the findings from positron emission tomography studies (80% SERT occupancy). Only a few novel studies have investigated alternative targets, that is, norepinephrine transporters (NETs), dopamine transporters (DATs), or monoamine oxidase A (MAO-A). For certain classes of drugs, positron emission tomography study data are inconclusive. Low DAT occupancy after bupropion treatment speculates its discussed mechanism of action. For MAO inhibitors, a correlation between drug concentration and MAO-A occupancy could not be established. CONCLUSIONS Neuroimaging studies are critical in TDM-guided therapy for certain antidepressants, whereas for bupropion and MAO inhibitors, the available evidence offers no further insight. Evidence for selective serotonin reuptake inhibitors is strong and justifies a titration toward suggested ranges. For SNRIs, duloxetine, and venlafaxine, NETs are sufficiently occupied, well above the SERT efficacy threshold. For these drugs, a titration toward higher concentrations (within the recommended range) should be considered in case of no response at lower concentrations.
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Affiliation(s)
- Xenia M Hart
- Department of Molecular Neuroimaging, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; and
| | - Moritz Spangemacher
- Department of Molecular Neuroimaging, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
- Department of Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Julie Defert
- Department of Molecular Neuroimaging, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Hiroyuki Uchida
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; and
| | - Gerhard Gründer
- Department of Molecular Neuroimaging, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
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Yang Z, Zhong T, Mo Q, He J, Chong J, Hu X, Zhao S, Qin J. Monoamine oxidase B activatable red fluorescence probe for bioimaging in cells and zebrafish. Bioorg Chem 2024; 145:107156. [PMID: 38387393 DOI: 10.1016/j.bioorg.2024.107156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/18/2024] [Accepted: 01/24/2024] [Indexed: 02/24/2024]
Abstract
A real-time and specific for the detection of Monoamine Oxidase B (MAO-B) to investigate the MAO-B-relevant disease development and treatment process is urgently desirable. Here, we utilized MAO-B to catalyze the conversion of propylamino groups to aldehyde groups, which was then quickly followed by a β-elimination process to produce fluorescent probes (FNJP) that may be used to detect MAO-B in vitro and in vivo. The FNJP probe possesses unique properties, including favorable reactivity (Km = 10.8 μM), high cell permeability, and NIR characteristics (λem = 610 nm). Moreover, the FNJP probe showed high selectivity for MAO-B and was able to detect endogenous MAO-B levels from a mixed population of NIH-3 T3 and HepG2 cells. MAO-B expression was found to be increased in cells under lipopolysaccharide-stimulated cellular oxidative stress in neuronal-like SH-SY5Y cells. In addition, the visualization of FNJP for MAO-B activity in zebrafish can be an effective tool for exploring the biofunctions of MAO-B. Considering these excellent properties, the FNJP probe may be a powerful tool for detecting MAO-B levels in living organisms and can be used for accurate clinical diagnoses of related diseases.
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Affiliation(s)
- Zhengmin Yang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China; Qiannan Medical College for Nationalities, Duyun 558003, PR China
| | - Tiantian Zhong
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China
| | - Qingyuan Mo
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China
| | - Jiman He
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China
| | - Jia Chong
- Qiannan Medical College for Nationalities, Duyun 558003, PR China
| | - Xianyun Hu
- Qiannan Medical College for Nationalities, Duyun 558003, PR China
| | - Shulin Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China
| | - Jiangke Qin
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China.
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Kamauchi H, Takanashi A, Suzuki M, Izumi K, Takao K, Sugita Y. Synthesis of 2,8-Dioxabicyclo[3.3.1]nonane Derivatives and Their Neuroprotective Activities. Chem Pharm Bull (Tokyo) 2024; 72:56-60. [PMID: 38171905 DOI: 10.1248/cpb.c23-00693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Twenty natural-product-like 2,8-dioxabicyclo[3.3.1]nonane derivatives were synthesized and their neuroprotective activities were tested using human monoamine oxidases (MAO) A and B and acetyl and butyryl cholinesterases (ChE). Compound 1s showed inhibitory activity for MAO-A, MAO-B and acetylcholinesterase (AChE) (IC50 values 34.0, 2.3 and 11.0 µM, respectively). The inhibition mode of (-)-1s for MAO-B was investigated. Chiral HPLC of (±)-1s separated the enantiomers and (-)-1s showed MAO-B inhibitory activity. Molecular docking simulation of (-)-1s and MAO-B revealed the binding mode.
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Affiliation(s)
- Hitoshi Kamauchi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University
| | - Akifumi Takanashi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University
| | - Mitsuaki Suzuki
- Department of Chemistry, Faculty of Science, Josai University
| | - Kouki Izumi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University
| | - Koichi Takao
- Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University
| | - Yoshiaki Sugita
- Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University
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Lafrenière S, Blier P. Remission from severe treatment-resistant depression with moclobemide: A case report. Encephale 2023; 49:649-650. [PMID: 37088581 DOI: 10.1016/j.encep.2023.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 01/14/2023] [Accepted: 01/31/2023] [Indexed: 04/25/2023]
Affiliation(s)
- Simon Lafrenière
- Department of Psychiatry and Neurosciences, Université Laval, 2325, rue de l'université, Québec, QC G1V 0A6, Canada.
| | - Pierre Blier
- The Royal's Institute of Mental Health Research, 1145, Carling Avenue, Ottawa, ON, K1Z 7K4, Canada; Department of Psychiatry, University of Ottawa, 1145, Carling Avenue, Ottawa, ON, K1Z 7K4, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, 451, Smyth Road, Ottawa, ON, K1H 8M5, Canada
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Hu Z, Zhou S, Li J, Li X, Zhou Y, Zhu Z, Xu J, Liu J. Design, synthesis and biological evaluation of novel indanones derivatives as potent acetylcholinesterase/monoamine oxidase B inhibitors. Future Med Chem 2023; 15:1823-1841. [PMID: 37902028 DOI: 10.4155/fmc-2023-0206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023] Open
Abstract
Aim: Based on a multitarget design strategy, a series of novel indanone-1-benzyl-1,2,3,6-tetrahydropyridin hybrids were identified for the potential treatment of Alzheimer's disease (AD). Results: These compounds exhibited significant inhibitory activities against acetylcholinesterase (AChE) and moderate inhibitory activities toward monoamine oxidase B (MAO-B). The optimal compound A1 possessed excellent dual AChE/MAO-B inhibition both in terms of potency (AChE: IC50 = 0.054 ± 0.004 μM; MAO-B: IC50 = 3.25 ± 0.20 μM), moderate inhibitory effects on self-mediated amyloid-β (Aβ) aggregation and antioxidant activity. In addition, compound A1 exhibited low neurotoxicity. More importantly, compound A1 showed significant cognitive and spatial memory improvements in the scopolamine-induced AD mouse model. Conclusion: All results suggest that compound A1 may become a promising lead of anti-AD drug for further development.
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Affiliation(s)
- Zhaoxin Hu
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Shengnan Zhou
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Junda Li
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Xinnan Li
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Yang Zhou
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Zheying Zhu
- School of Pharmacy, The University of Nottingham, University Park Campus, Nottingham, NG7 2RD, UK
| | - Jinyi Xu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Jie Liu
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
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Van den Eynde V, Parker G, Ruhé HG, Birkenhäger TK, Godet L, Shorter E, Gillman PK. On the Origins of MAOI Misconceptions: Reaffirming their Role in Melancholic Depression. Psychopharmacol Bull 2023; 53:35-54. [PMID: 37601082 PMCID: PMC10434306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
The first monoamine oxidase inhibitors (MAOIs) used for the treatment of depression in the 1950-60s were credited with treating severe melancholic depression (MeD) successfully and greatly reducing the need for electroconvulsive therapy (ECT). Following the hiatus caused by the then ill-understood cheese reaction, MAOI use was relegated to atypical and treatment-resistant depressions only, based on data from insufficiently probing research studies suggesting their comparatively lesser effectiveness in MeD. The siren attraction of new 'better' drugs with different mechanisms amplified this trend. Following a re-evaluation of the data, we suggest that MAOIs are effective in MeD. Additionally, the broad unitary conceptualisation of major depressive disorder (MDD) in the DSM model diminished the chance of demonstrating distinctive responses to different antidepressant drugs (ADs) such as SSRIs, TCAs, and MAOIs, thereby further reducing the interest in MAOIs. More reliable categorical distinction of MeD, disentangling it from MDD, may be possible if more sensitive measuring instruments (CORE, SMPI) are used. We suggest these issues will benefit from re-appraisement via an inductive reasoning process within a binary (rather than a unitary) model for defining the different depressive disorders, allowing for the use of more reliable diagnostic criteria for MeD in particular. We conclude that MAOIs remain essential for, inter alia, TCA-resistant MeD, and should typically be used prior to ECT; additionally, they have a role in maintaining remission in cases treated with ECT (and ketamine/esketamine). We suggest that MAOIs should be utilized earlier in treatment algorithms and with greater regularity than is presently the case.
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Affiliation(s)
- Vincent Van den Eynde
- Van den Eynde, PsychoTropical Research, Queensland, Australia; Department of Psychiatry, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Gordon Parker
- Parker, Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, Australia
| | - Henricus G Ruhé
- Ruhé, Department of Psychiatry, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Tom K Birkenhäger
- Birkenhäger, Department of Psychiatry, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Lila Godet
- Godet, PsychoTropical Research, Queensland, Australia
| | - Edward Shorter
- Shorter, Faculty of Medicine, University of Toronto, Toronto, Canada
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Nyarko JNK, Heistad RM, Pennington PR, Mousseau DD. Detecting Monoamine Oxidase A and B Proteins: A Western Blotting Protocol and Some Practical Considerations. Methods Mol Biol 2023; 2558:123-141. [PMID: 36169860 DOI: 10.1007/978-1-0716-2643-6_10] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The expression of the two isoforms of monoamine oxidase (MAO A and MAO B) is often inferred from proxy measures such as mRNA transcript levels or catalytic activity. Yet the literature is clear that the proportionality of protein, mRNA, and activity does not guarantee that any of these measures can be used as a proxy for any of the others. Here we provide a protocol for the detection of MAO proteins in cell lysates that can be adapted readily to tissue preparations. Given that MAOs influence many physiological and pathological processes, we feel it is essential to include measures of protein expression when exploring genetic regulation or catalytic properties of these important enzymes.
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Affiliation(s)
| | - Ryan M Heistad
- Department of Psychiatry, University of Saskatchewan, Saskatoon, SK, Canada
| | - Paul R Pennington
- Department of Psychiatry, University of Saskatchewan, Saskatoon, SK, Canada
| | - Darrell D Mousseau
- Department of Psychiatry, University of Saskatchewan, Saskatoon, SK, Canada.
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Yan L, Wang J, He X, Jin Y, Chen P, Bai Y, Li P, Su W. Platycladus orientalis seed extract as a potential triple reuptake MAO inhibitor rescue depression phenotype through restoring monoamine neurotransmitters. J Ethnopharmacol 2022; 295:115302. [PMID: 35489661 DOI: 10.1016/j.jep.2022.115302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/03/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGY RELEVANCE Platycladus orientalis seeds are recorded in traditional Chinese medicine (TCM) formulations for modulation of mood and physical activity in "Shen Nong Ben Cao Jing" and "Compendium of Materia Medica" and so on. Recently, we identified its extracting components and looked for the potentials in treatment for depression by improving the function of monoamine neurotransmitters. AIM OF THE STUDY We investigated the mechanism of action of the seed extracts of P. orientalis (S4) to rescue depressive behavior in a chronic, unpredicted, mild stress (CUMS)-induced model in rats. MATERIALS AND METHODS We used ultra-fast liquid chromatography coupled with triple quadrupole-time of flight tandem mass spectrometry to analyze the chemical constituents in S4. An assay platform in zebrafish and molecular docking were used to analyze if S4 regulated rest/wake behavior and predict the biological targets which correlated with monoamine neurotransmitters. Depressive-behavior tests (body weight, sucrose preference test, tail-suspension test, forced-swimming test) were carried in the CUMS model. After behavior tests and killing, rat brains were separated into the hippocampus, frontier cortex and dorsal raphe nucleus. The main monoamine neurotransmitters and their metabolite concentrations in these three brain regions were measured by rapid resolution liquid chromatography coupled with triple quadrupole tandem mass spectrometry. RESULTS Forty-one compounds were identified in S4, including fatty acids, terpenoids, amino acids, plant sterols and flavonoids. S4 could increase the total rest time and decrease the waking activity of zebrafish. S4 showed high correlation with adrenaline agonists, 5-hydroxytryptamine (5-HT) reuptake inhibitors and dopamine agonists. CUMS-group rats, compared with controls, had significantly decreased body weight and preference for sucrose water, whereas the immobility time in the tail-suspension test and forced-swimming test was increased. S4 could significantly rescue the increased levels of 5-HT, noradrenaline and dopamine in the prefrontal cortex and dorsal raphe nucleus. CONCLUSIONS We demonstrated that S4 was a potential inhibitor of MAO reuptake that could rescue depression in a CUMS-model rats by restoring monoamine neurotransmitters in different encephalic regions.
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Affiliation(s)
- Li Yan
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 135 Xingang Xi Road, Guangzhou, 510275, China; Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, 510632, China
| | - Jiawei Wang
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 135 Xingang Xi Road, Guangzhou, 510275, China
| | - Xiang He
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 135 Xingang Xi Road, Guangzhou, 510275, China
| | - Yufan Jin
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 135 Xingang Xi Road, Guangzhou, 510275, China
| | - Pan Chen
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 135 Xingang Xi Road, Guangzhou, 510275, China
| | - Yang Bai
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 135 Xingang Xi Road, Guangzhou, 510275, China
| | - Peibo Li
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 135 Xingang Xi Road, Guangzhou, 510275, China.
| | - Weiwei Su
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 135 Xingang Xi Road, Guangzhou, 510275, China.
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Guo J, Xu A, Cheng M, Wan Y, Wang R, Fang Y, Jin Y, Xie SS, Liu J. Design, Synthesis and Biological Evaluation of New 3,4-Dihydro-2(1H)-Quinolinone-Dithiocarbamate Derivatives as Multifunctional Agents for the Treatment of Alzheimer’s Disease. Drug Des Devel Ther 2022; 16:1495-1514. [PMID: 35611357 PMCID: PMC9124477 DOI: 10.2147/dddt.s354879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 05/10/2022] [Indexed: 12/01/2022] Open
Abstract
Background Alzheimer’s disease (AD) belongs to neurodegenerative disease, and the increasing number of AD patients has placed a heavy burden on society, which needs to be addressed urgently. ChEs/MAOs dual-target inhibitor has potential to treat AD according to reports. Purpose To obtain effective multi-targeted agents for the treatment of AD, a novel series of hybrid compounds were designed and synthesized by fusing the pharmacophoric features of 3,4-dihydro-2 (1H)-quinolinone and dithiocarbamate. Methods All compounds were evaluated for their inhibitory abilities of ChEs and MAOs. Then, further biological activities of the most promising candidate 3e were determined, including the ability to cross the blood-brain barrier (BBB), kinetics and molecular model analysis, cytotoxicity in vitro and acute toxicity studies in vivo. Results Most compounds showed potent and clear inhibition to AChE and MAOs. Among them, compound 3e was considered to be the most effective and balanced inhibitor to both AChE and MAOs (IC50=0.28 µM to eeAChE; IC50=0.34 µM to hAChE; IC50=2.81 µM to hMAO-B; IC50=0.91 µM to hMAO-A). In addition, 3e showed mixed inhibition of hAChE and competitive inhibition of hMAO-B in the enzyme kinetic studies. Further studies indicated that 3e could penetrate the BBB and showed no toxicity on PC12 cells and HT-22 cells when the concentration of 3e was lower than 12.5 µM. More importantly, 3e lacked acute toxicity in mice even at high dose (2500 mg/kg, P.O.). Conclusion This work indicated that compound 3e with a six-carbon atom linker and a piperidine moiety at terminal position was a promising candidate and was worthy of further study.
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Affiliation(s)
- Jie Guo
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Airen Xu
- Clinical Pharmacology Research Center, The Second Hospital of Yinzhou, Ningbo, Zhejiang, People’s Republic of China
| | - Maojun Cheng
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Yang Wan
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Rikang Wang
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Yuanying Fang
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Yi Jin
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Sai-Sai Xie
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
- Correspondence: Sai-Sai Xie, National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, No. 56, Yangming Road, Donghu District, Nanchang City, Jiangxi Province, 330006, People’s Republic of China, Email
| | - Jing Liu
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
- Jing Liu, School of Pharmacy, Jiangxi University of Chinese Medicine, No. 56, Yangming Road, Donghu District, Nanchang City, Jiangxi Province, 330006, People’s Republic of China, Email
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Kamecki F, Knez D, Carvalho D, Marcucci C, Rademacher M, Higgs J, Žakelj S, Marcos A, de Tezanos Pinto F, Abin-Carriquiry JA, Gobec S, Colettis N, Marder M. Multitarget 2'-hydroxychalcones as potential drugs for the treatment of neurodegenerative disorders and their comorbidities. Neuropharmacology 2021; 201:108837. [PMID: 34653442 DOI: 10.1016/j.neuropharm.2021.108837] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 09/30/2021] [Accepted: 10/10/2021] [Indexed: 02/01/2023]
Abstract
The complex nature of neurodegenerative diseases (NDDs), such as Alzheimer's disease (AD) and Parkinson's disease (PD) calls for multidirectional treatment. Restoring neurotransmitter levels by combined inhibition of cholinesterases (ChEs) and monoamine oxidases (MAOs, MAO-A and MAO-B), in conjunction with strategies to counteract amyloid β (Aβ) aggregation, may constitute a therapeutically strong multi-target approach for the treatment of NDDs. Chalcones are a subgroup of flavonoids with a broad spectrum of biological activity. We report here the synthesis of 2'-hydroxychalcones as MAO-A and MAO-B inhibitors. Compounds 5c (IC50 = 0.031 ± 0.001 μM), 5a (IC50 = 0.084 ± 0.003 μM), 2c (IC50 = 0.095 ± 0.019 μM) and 2a (IC50 = 0.111 ± 0.006 μM) were the most potent, selective and reversible inhibitors of human (h)MAO-B isoform. hMAO-B inhibitors 1a, 2a and 5a also inhibited murine MAO-B in vivo in mouse brain homogenates. Molecular modelling rationalised the binding mode of 2'-hydroxychalcones in the active site of hMAO-B. Additionally, several derivatives inhibited murine acetylcholinesterase (mAChE) (IC50 values from 4.37 ± 0.83 μM to 15.17 ± 6.03 μM) and reduced the aggregation propensity of Aβ. Moreover, some derivatives bound to the benzodiazepine binding site (BDZ-bs) of the γ-aminobutyric acid A (GABAA) receptors (1a and 2a with Ki = 4.9 ± 1.1 μM and 5.0 ± 1.1 μM, respectively), and exerted sedative and/or anxiolytic like effects on mice. The biological results reported here on 2'-hydroxychalcones provide an extension to previous studies on chalcone scaffold and show them as a potential treatment strategy for NDDs and their associated comorbidities.
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Affiliation(s)
- Fabiola Kamecki
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro C. Paladini, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina.
| | - Damijan Knez
- University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia.
| | - Diego Carvalho
- Department of Neurochemistry, Instituto de Investigaciones Biológicas Clemente Estable, 11600, Montevideo, Uruguay.
| | - Carolina Marcucci
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro C. Paladini, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina.
| | - Marina Rademacher
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro C. Paladini, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina.
| | - Josefina Higgs
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro C. Paladini, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina.
| | - Simon Žakelj
- University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia.
| | - Alejandra Marcos
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro C. Paladini, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina.
| | - Felicitas de Tezanos Pinto
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro C. Paladini, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina.
| | - Juan Andrés Abin-Carriquiry
- Department of Neurochemistry, Instituto de Investigaciones Biológicas Clemente Estable, 11600, Montevideo, Uruguay.
| | - Stanislav Gobec
- University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia.
| | - Natalia Colettis
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro C. Paladini, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina.
| | - Mariel Marder
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro C. Paladini, Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina.
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Novikova IN, Manole A, Zherebtsov EA, Stavtsev DD, Vukolova MN, Dunaev AV, Angelova PR, Abramov AY. Adrenaline induces calcium signal in astrocytes and vasoconstriction via activation of monoamine oxidase. Free Radic Biol Med 2020; 159:15-22. [PMID: 32738397 DOI: 10.1016/j.freeradbiomed.2020.07.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 10/23/2022]
Abstract
Adrenaline or epinephrine is a hormone playing an important role in physiology. It is produced de-novo in the brain in very small amounts compared to other catecholamines, including noradrenaline. Although the effects of adrenaline on neurons have been extensively studied, much less is known about the action of this hormone on astrocytes. Here, we studied the effects of adrenaline on astrocytes in primary co-culture of neurons and astrocytes. Application of adrenaline induced calcium signal in both neurons and astrocytes, but only in neurons this effect was dependent on α- and β-receptor antagonists. The effects of adrenaline on astrocytes were less dependent on adrenoreceptors: the antagonist carvedilol had only moderate effect on the calcium signal and the agonist of adrenoreceptors methoxamine induced a signal only in small proportion of the cells. We found that adrenaline in astrocytes activates phospholipase C and subsequent release of calcium from the endoplasmic reticulum. Calcium signal in astrocytes is initiated by the metabolism of adrenaline by the monoamine oxidase (MAO), which activates reactive oxygen species production and induces lipid peroxidation. Inhibitor of MAO selegiline inhibited both adrenaline-induced calcium signal in astrocytes and the vasoconstriction that indicates an important role for monoamine oxidase in adrenaline-induced signalling and function.
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Affiliation(s)
- Irina N Novikova
- Cell Physiology and Pathology Laboratory, Orel State University, Orel, 302026, Russia
| | | | - Evgeny A Zherebtsov
- Cell Physiology and Pathology Laboratory, Orel State University, Orel, 302026, Russia; Optoelectronics and Measurement Techniques Laboratory, University of Oulu, Oulu, 90014, Finland
| | - Dmitry D Stavtsev
- Cell Physiology and Pathology Laboratory, Orel State University, Orel, 302026, Russia
| | - Marina N Vukolova
- Department of Pathophysiology, Sechenov First Moscow State Medical University, Moscow, 119991, Russia
| | - Andrey V Dunaev
- Cell Physiology and Pathology Laboratory, Orel State University, Orel, 302026, Russia
| | - Plamena R Angelova
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, Queens Square, London, WC1N 3BG, UK
| | - Andrey Y Abramov
- Cell Physiology and Pathology Laboratory, Orel State University, Orel, 302026, Russia; Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, Queens Square, London, WC1N 3BG, UK.
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Liu CZ, Zhu JX. [Source, metabolism and function of dopamine in digestive tract]. Sheng Li Xue Bao 2020; 72:336-346. [PMID: 32572431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Dopamine (DA), as a catecholamine neurotransmitter widely distributed in the central nervous system and the peripheral tissues, has attracted a lot of attention. Especially in recent years, DA has been found to regulate the function of the immune system, and the involvement of DA in the intestinal mucosal inflammation-related diseases has become a hot research topic. The digestive tract is an important source of peripheral DA, and DA is not only produced in the enteric nervous system and gastrointestinal epithelium, but also produced by intestinal microorganisms. In addition to the synthetases of DA, the DA contents in body tissues are also affected by the two kinds of metabolic enzymes, monoamine oxidase (MAO) and catechol-O-methyltransferase (COMT). This article reviewed the sources, metabolism, and functions of DA in digestive tract, especially focusing on the distribution and function of MAO and COMT, the enzymes degrading DA.
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Affiliation(s)
- Chen-Zhe Liu
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China
| | - Jin-Xia Zhu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China.
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Holländer V. [Reaction on 'Lithium augmentation to monoamine oxidase-inhibitors in treatment-resistant depressive disorders: case report and overview of literature']. Tijdschr Psychiatr 2019; 61:740-741. [PMID: 31907918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
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Abstract
A clinical evaluation of the effects of a recently introduced monoamine oxidase inhibitor, N - isonicotinoyl - N1—(β - N - benzylcarboxamido - ethyl) hydrazine (Niamid, Pfizer, Ltd.) on certain types of mentally subnormal patients has been carried out over the past year.
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Abstract
Depression is a serious illness in Western Europe and the United States of America. It is estimated that in 1957 the combined total of suicides in the United States, Britain, France and Western Germany was approximately 30, 000 (1). The attempted suicide rate is considered to be six or seven times as great, which could give a grand total of 200, 000 suicide attempts in that year in these countries. Many of these patients are depressives, as stated in a recent British Medical Journal leading article (2).
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MIDDLEFELL R, FROST I, EGAN GP, EATON H. A Report on the Effects of Phenelzine (Nardil), a Monoamine Oxidase Inhibitor, in Depressed Patients. ACTA ACUST UNITED AC 2018; 106:1533-8. [PMID: 13770370 DOI: 10.1192/bjp.106.445.1533] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Phenelzine, β-phenylethylhydrazine, of structural formula, is regarded as a potent, rapidly acting, long-lasting monoamine oxidase (M.A.O.) inhibitor. The administration of such compounds protects 5-hydroxytryptamine (serotonin) which is destroyed by M.A.O. 5-hydroxytryptamine is believed to act in the brain as a chemical mediator, the function of which is to control the pulsating action of oligodendroglial cells which supply the other brain tissues with nutrient. It has been suggested that a relative 5-hydroxytryptamine deficiency is the fundamental biochemical disorder of severe depressive states and that M.A.O. inhibitors such as phenelzine tend to promote restoration to more normal concentration and activity.
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Abstract
The discovery that iproniazid benefits certain subjects with depression, linked with the demonstration that it inhibits the enzyme monoamine oxidase (MAO), led to the hypothesis that inhibition of MAO was the essential mechanism by which iproniazid caused relief of symptoms (Pletscher, 1959). Iproniazid, unfortunately, can produce serious toxic effects, particularly on the liver (Pare and Sandler, 1959), and this has limited its clinical application. For this reason a search has been made for MAO inhibitors with an effective anti-depressant action yet without the serious toxic effects of iproniazid. Among the newer compounds for which such claims have been made is N-isonicotinoyl (-N-N-benzylcarboxamidoethyl) hydrazine or Nialamide.
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STRAKER M, GRAUER H. Clinical Study of a Potent Antidepressant: Tranylcypromine with Trifluoperazine in the Aged Chronically Ill. ACTA ACUST UNITED AC 2017; 7(Supl):96-103. [PMID: 13917604 DOI: 10.1177/070674376200701s19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Nakayama H, Matayoshi H. [Management of Preoperative Drugs : Psychotropic Drugs]. Masui 2016; 65:1135-1143. [PMID: 30351802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A considerable number of patients with psychiatric/ )`neurologic disorders are scheduled to receive operation and anesthesia. Antipsychotic drugs administered to schizophrenic patients should be continued before anesthesia for decreasing postoperative delirium. Schizophrenic patients are at 'risk for perioperative complications such as hypotension and lethal arrhyth- mia during anesthesia, postoperative ileus, and neuro- leptic malignant syndrome. Patients with depression may be predisposed to perioperative problems such as hypotension, serotonin syndrome and discontinuation syndrome. Antidepressants should be continued to avoid postoperative delirium. Anticonvulsants are diffi- cult to maintain their therapeutic and effective blood concentrations. It is important to continue anticonvul- sant therapy to avoid perioperative seizures except epilepsy surgery. Drug interactions of anticonvulsants are common especially with muscle relaxants. Discon- tinuation of anti-Parkinsonian drugs before surgery causes an exacerbation of Parkinsonism and sometimes Parkinsonism-hyperpyrexia syndrome. But, monoamine oxidase B (MAO-B) inhibitor should be discontinued at least two weeks before surgery because of severe drug interactions with pethidine. It remains unclear whether anesthesia and surgery are associated with a risk of Alzheimer's disease. During the perioperative period, cooperation among anesthesiologists, neurologists, psy- chiatrists, and surgeons is essential. It is important that medical experts share awareness about perioperative problems and their management in patients with psy- chiatric/neurologic disorder.
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Kuypers KPC, Riba J, de la Fuente Revenga M, Barker S, Theunissen EL, Ramaekers JG. Ayahuasca enhances creative divergent thinking while decreasing conventional convergent thinking. Psychopharmacology (Berl) 2016; 233:3395-403. [PMID: 27435062 PMCID: PMC4989012 DOI: 10.1007/s00213-016-4377-8] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 07/06/2016] [Indexed: 01/09/2023]
Abstract
INTRODUCTION Ayahuasca is a South American psychotropic plant tea traditionally used in Amazonian shamanism. The tea contains the psychedelic 5-HT2A receptor agonist N,N-dimethyltryptamine (DMT), plus β-carboline alkaloids with monoamine oxidase-inhibiting properties. Increasing evidence from anecdotal reports and open-label studies indicates that ayahuasca may have therapeutic effects in treatment of substance use disorders and depression. A recent study on the psychological effects of ayahuasca found that the tea reduces judgmental processing and inner reactivity, classic goals of mindfulness psychotherapy. Another psychological facet that could potentially be targeted by ayahuasca is creative divergent thinking. This mode of thinking can enhance and strengthen psychological flexibility by allowing individuals to generate new and effective cognitive, emotional, and behavioral strategies. The present study aimed to assess the potential effects of ayahuasca on creative thinking. METHODS We visited two spiritual ayahuasca workshops and invited participants to conduct creativity tests before and during the acute effects of ayahuasca. In total, 26 participants consented. Creativity tests included the "pattern/line meanings test" (PLMT) and the "picture concept test" (PCT), both assessing divergent thinking and the latter also assessing convergent thinking. RESULTS While no significant effects were found for the PLMT, ayahuasca intake significantly modified divergent and convergent thinking as measured by the PCT. While convergent thinking decreased after intake, divergent thinking increased. CONCLUSIONS The present data indicate that ayahuasca enhances creative divergent thinking. They suggest that ayahuasca increases psychological flexibility, which may facilitate psychotherapeutic interventions and support clinical trial initiatives.
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Affiliation(s)
- K P C Kuypers
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands.
| | - J Riba
- Human Experimental Neuropsychopharmacology, Sant Pau Institute of Biomedical Research, Barcelona, Spain
| | - M de la Fuente Revenga
- Human Experimental Neuropsychopharmacology, Sant Pau Institute of Biomedical Research, Barcelona, Spain
| | - S Barker
- Department of Comparative Biomedical Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - E L Theunissen
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - J G Ramaekers
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
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ALIMURUNG MM, PAULINO-ABUNDO H, TAN AL, CRUZ PM. Monoamine Oxidase Inhibitor (Tersavid) in Coronary Heart Diseasea. Angiology 2016; 14:480-3. [PMID: 14057650 DOI: 10.1177/000331976301400908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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SAMUELS SS, SHAFTEL HE. Preliminary Observations On the Role of Monoamine Oxidase Inhibitors in the Therapy of Peripheral Arterial Disease. Angiology 2016; 11:90-2. [PMID: 14441293 DOI: 10.1177/000331976001100119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Coetzee DD, López V, Smith C. High-mesembrine Sceletium extract (Trimesemine™) is a monoamine releasing agent, rather than only a selective serotonin reuptake inhibitor. J Ethnopharmacol 2016; 177:111-116. [PMID: 26615766 DOI: 10.1016/j.jep.2015.11.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 11/09/2015] [Accepted: 11/17/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Extracts from and alkaloids contained in plants in the genus Sceletium have been reported to inhibit ligand binding to serotonin transporter. From this, the conclusion was made that Sceletium products act as selective serotonin-reuptake inhibitors. However, other mechanisms which may similarly result in the anxiolytic or anti-depressant effect ascribed to Sceletium, such as monoamine release, have not been investigated. AIMS OF THE STUDY The current study investigated simultaneously and at two consecutive time points, the effect of high-mesembrine Sceletium extract on both monoamine release and serotonin reuptake into both human astrocytes and mouse hippocampal neurons, as well as potential inhibitory effects on relevant enzyme activities. MATERIALS AND METHODS Human astrocytes and mouse hippocampal cells were treated with citalopram or Sceletium extract for 15 and 30min, after which protein expression levels of serotonin transporter (SERT) and vesicular monoamine transporter-2 (VAMT-2) was assessed using fluorescent immunocytochemistry and digital image analysis. Efficacy of inhibition of acetylcholinesterase (AChE) and monoamine oxidate-A (MAO-A) activity were assessed using the Ellman and Olsen methods (and appropriate controls) respectively. RESULTS We report the first investigation of mechanism of action of Sceletium extract in the context of serotonin transport, release and reuptake in a cellular model. Cell viability was not affected by Sceletium treatment. High-mesembrine Sceletium extract down-regulated SERT expression similarly to citalopram. In addition, VMAT-2 was upregulated significantly in response to Sceletium treatment. The extract showed only relatively mild inhibition of AChE and MAO-A. CONCLUSIONS We conclude that the serotonin reuptake inhibition activity ascribed to the Sceletium plant, is a secondary function to the monoamine-releasing activity of high-mesembrine Sceletium extract (Trimesemine(TM)).
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Affiliation(s)
- Dirk D Coetzee
- Department of Physiological Sciences, Science Faculty, Stellenbosch University, Stellenbosch, South Africa
| | - Víctor López
- Department of Pharmacy, Faculty of Health Sciences, San Jorge University, Villanueva de Gállego, Zaragoza, Spain
| | - Carine Smith
- Department of Physiological Sciences, Science Faculty, Stellenbosch University, Stellenbosch, South Africa.
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de Montigny C. Iprindole: a cornerstone in the neurobiological investigation of antidepressant treatments. Mod Probl Pharmacopsychiatry 2015; 18:102-16. [PMID: 6285182 DOI: 10.1159/000406238] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Van de Merwe TJ, Pare CM, Glover V, Sandler M. Tranylcypromine isomers in depressed outpatients: effects on depression, monoamine oxidase inhibition and tyramine pressor response. Mod Probl Pharmacopsychiatry 2015; 19:189-202. [PMID: 6346066 DOI: 10.1159/000407515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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HEYMAN JJ. SECTION OF BIOLOGICAL AND MEDICAL SCIENCES: NICOTINAMIDE METABOLISM IN SCHIZOPHRENICS, DRUG ADDICTS, AND NORMALS: THE EFFECT OF PSYCHOTROPIC DRUGS AND HORMONES*. ACTA ACUST UNITED AC 2012; 26:354-60. [PMID: 14170546 DOI: 10.1111/j.2164-0947.1964.tb01256.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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LEME JG, ROCHA E SILVA M. Effect Upon the Analgesic Action of Reserpine of Central Nervous System Stimulants and Drugs Affecting the Metabolism of Catechol- and Indole-Amines. J Pharm Pharmacol 2011; 15:454-60. [PMID: 13929554 DOI: 10.1111/j.2042-7158.1963.tb12813.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Abstract
The effect upon the analgesic action of reserpine of central nervous system stimulants and of drugs affecting the metabolism of catechol-and indole-amines as measured in mice by a hot-plate method has been analysed. The analgesic effect, which has a maximal intensity 48 hr. after injection of the alkaloid, is partially or totally counteracted by MAO inhibitors, LSD-25 and 5-hydroxytryptophan. Central nervous system stimulants given to reserpinised mice before each test were effective in reducing the reaction time to the heat stimulation only 24 and 48 hr. after reserpine. DOPA showed no significant ability to reduce the analgesic effect of reserpine. In the light of these findings a suggestion has been made that 5-hydroxytryptamine rather than catecholamines would be involved in the mechanism of the analgesic effect due to reserpine and since central nervous system stimulants are able to reduce this action initially but are ineffective later, part of the effect is thought to be due to sedation of the animals, the participation of the stimulants being confined to a direct antagonism against the sedation. The lasting analgesic effect is supposed to correspond to a lack of 5-hydroxytryptamine in the cerebral structures.
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PANT MC, PARMAR SS, BHARGAVA KP. Role of the polymethylene chain in derivatives of demecarium bromide on the inhibition of monoamine oxidase. J Pharm Pharmacol 2011; 16:503-4. [PMID: 14207098 DOI: 10.1111/j.2042-7158.1964.tb07504.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cranwell-Bruce LA. Drugs for Parkinson's disease. Medsurg Nurs 2010; 19:347-350. [PMID: 21337993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Affiliation(s)
- Lisa A Cranwell-Bruce
- Byrdine F. Lewis School of Nursing, College of Health and Human Sciences, Georgia State University, Atlanta, GA, USA
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HIRSCHMANN J, MAYER K. Zur Beeinflussung der Akinese und anderer extrapyramidal-motorischer Störungen mit L-Dopa (L-Dihydroxyphenylalanin). Dtsch Med Wochenschr 2009; 89:1877-80. [PMID: 14211843 DOI: 10.1055/s-0028-1113210] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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KIELHOLZ P, LABHARDT F, BATTEGAY R, RUMMELE W, FEER H. Therapie der Depressionen und der depressiven Krankheitszustände*. Dtsch Med Wochenschr 2009; 88:1617-24. [PMID: 14032510 DOI: 10.1055/s-0028-1112273] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jonason J. Activities of monoamine metabolizing enzymes in rat salivary glands: a comparison between tissue slices and homogenates. Acta Pharmacol Toxicol (Copenh) 2009; 27:73-80. [PMID: 5819501 DOI: 10.1111/j.1600-0773.1969.tb00485.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Akopyan ZI, Veryovkina IV, Levyant MI, Moskvitina TA, Gorkin VZ, Orekhovich VN. On the isolation and purification of structure-bound proteins. Monoamine oxidases of mitochondrial membranes. Int J Protein Res 2009; 3:121-9. [PMID: 5135302 DOI: 10.1111/j.1399-3011.1971.tb01702.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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