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Azevedo AR, Cordeiro P, Strelow DN, de Andrade KN, Neto MRS, Goetze Fiorot R, Brüning CA, Braga AL, Lião LM, Bortolatto CF, Neto JSS, Nascimento V. Green Approach for the Synthesis of Chalcogenyl- 2,3-dihydrobenzofuran Derivatives Through Allyl-phenols/ Naphthols and Their Potential as MAO-B Inhibitors. Chem Asian J 2023:e202300586. [PMID: 37733585 DOI: 10.1002/asia.202300586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/30/2023] [Accepted: 09/20/2023] [Indexed: 09/23/2023]
Abstract
This work presents the design, synthesis, and MAO-B inhibitor activity of a series of chalcogenyl-2,3-dihydrobenzofurans derivatives. Using solvent- and metal-free methodology, a series of chalcogen-containing dihydrobenzofurans 7-9 was obtained with yields ranging from 40% to 99%, using an I2 /DMSO catalytic system. All compounds were fully structurally characterized using 1 H and 13 C NMR analysis, and the unprecedented compounds were additionally analyzed using high-resolution mass spectrometry (HRMS). In addition, the mechanistic proposal that iodide is the most likely species to act in the transfer of protons along the reaction path was studied through theoretical calculations. Finally, the compounds 7b-e, 8a-e, and 9a showed great promise as inhibitors against MAO-B activity.
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Affiliation(s)
- Amanda R Azevedo
- SupraSelen Laboratory, Department of Organic Chemistry, Universidade Federal Fluminense, Niterói, Institute of Chemistry, Campus do Valonguinho, 24020-141, RJ, Brazil
| | - Pâmella Cordeiro
- SupraSelen Laboratory, Department of Organic Chemistry, Universidade Federal Fluminense, Niterói, Institute of Chemistry, Campus do Valonguinho, 24020-141, RJ, Brazil
| | - Dianer N Strelow
- Molecular Biochemistry and Neuropharmacology Laboratory (LABIONEM), Chemical, Pharmaceutical and Food Sciences Center (CCQFA), Federal University of Pelotas Pelotas, 96010-900, RS, Brazil
| | - Karine N de Andrade
- Department of Organic Chemistry, Institute of Chemistry, Universidade Federal Fluminense Niterói, Outeiro São João Batista, s/n, 24020-141, RJ, Brazil
| | - Marcos R S Neto
- LabSelen, Department of Chemistry, Federal University of Santa Catarina, Santa Catarina, 88040-900, SC, Brazil
| | - Rodolfo Goetze Fiorot
- Department of Organic Chemistry, Institute of Chemistry, Universidade Federal Fluminense Niterói, Outeiro São João Batista, s/n, 24020-141, RJ, Brazil
| | - César A Brüning
- Molecular Biochemistry and Neuropharmacology Laboratory (LABIONEM), Chemical, Pharmaceutical and Food Sciences Center (CCQFA), Federal University of Pelotas Pelotas, 96010-900, RS, Brazil
| | - Antonio L Braga
- LabSelen, Department of Chemistry, Federal University of Santa Catarina, Santa Catarina, 88040-900, SC, Brazil
| | - Luciano M Lião
- LabRMN, Chemistry Institute, Federal University of Goiás Goiânia, 74690-900, GO, Brazil
| | - Cristiani F Bortolatto
- Molecular Biochemistry and Neuropharmacology Laboratory (LABIONEM), Chemical, Pharmaceutical and Food Sciences Center (CCQFA), Federal University of Pelotas Pelotas, 96010-900, RS, Brazil
| | - José S S Neto
- LabRMN, Chemistry Institute, Federal University of Goiás Goiânia, 74690-900, GO, Brazil
| | - Vanessa Nascimento
- SupraSelen Laboratory, Department of Organic Chemistry, Universidade Federal Fluminense, Niterói, Institute of Chemistry, Campus do Valonguinho, 24020-141, RJ, Brazil
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Bittencourt KC, Souza RRDE. Insecticidal activity of the organotellurium 2-Phenylethynyl-Butyltellurium on the Drosophila melanogaster model. AN ACAD BRAS CIENC 2023; 95:e20211486. [PMID: 36946808 DOI: 10.1590/0001-3765202320211486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 04/04/2022] [Indexed: 03/18/2023] Open
Abstract
2-Phenylethynyl-Butyltellurium (PEBT) is a synthetic organotellurium compound that has shown various pharmacological properties on mammals without any signs of toxicity, but its effects on insects have not been reported before. Therefore, the aim of this study was to assess whether acute exposure to PEBT would promote an insecticidal effect against Drosophila melanogaster. The flies were exposed to three concentrations of PEBT (0.325 µmol L-1, 1.300 µmol L-1, and 5.200 µmol L-1) and a control solution (vehicle), using 450 flies per treatment (three repetitions of 150 flies), for 48 hours. Negative geotaxis and open field tests were performed (in vivo) after 24 and 48h, and acetylcholinesterase (AChE) activity was assessed (ex vivo) after 48h. Also, the mortality rate, 50% Lethal Concentration (LC50), 80% Lethal Concentration (LC80), and 95% Lethal Concentration (LC95) were calculated. Our results show that PEBT presented insecticidal activity against Drosophila melanogaster at all tested concentrations, which caused locomotor impairment and increased acetylcholinesterase activity in the flies' heads.
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Affiliation(s)
- Karina Chertok Bittencourt
- Federal University of Santa Maria (UFSM), Department of Agronomic and Environmental Sciences, Linha 7 de Setembro, s/n, BR 386, Km 40, 98400-000 Frederico Westphalen, RS, Brazil
| | - Rafael Rodrigues DE Souza
- Federal University of Santa Maria (UFSM), Department of Plant Science, Avenida Roraima, 1000, 97105-900, Santa Maria, RS, Brazil
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Arya A, Mittal V, Kaushik D, Kumar M, Alotaibi SS, Albogami SM, El-Saber Batiha G, Jeandet P. Mutivariate optimization strategy for the sonication-based extraction of Nardostachys jatamansi roots and analysis for chemical composition, anti-oxidant and acetylcholinesterase inhibitory potential. ULTRASONICS SONOCHEMISTRY 2022; 89:106133. [PMID: 36037596 PMCID: PMC9436804 DOI: 10.1016/j.ultsonch.2022.106133] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/16/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
Extracts from medicinal plants are generally obtained by conventional methods like percolation and maceration. Owing to limitations of traditional methods and to meet the rising demand of extracts, the development of new green approaches is need of hour. In the present research, we have developed an ultrasound-assisted extraction (UAE) method for the Nardostachys jatamansi (NJ) D. Don, DC roots and optimized the extraction parameters for possible improved extract yield. A multivariate optimization strategy using the Centre Composite Design coupled with response surface methodology was applied. A numerical optimization approach accurately predicted the extraction conditions (sonication time ∼ 20 min, ethanol ∼ 70 % and a liquid/solid ratio of about 21:1). Scanning electron microscopy of the plant samples after UAE also indicated the cavitation effect due to sound waves. GC-MS analysis of the optimized ultrasound extract (OUNJ) confirmed improvement in the concentration of various secondary metabolites like jatamansone (91.8 % increase), spirojatamol (42.3 % increase), globulol (130.4 % increase), sitosterol (84.6 % increase) as compared to the soxhlet extract (SXNJ). Different anti-oxidant parameters (DPPH, Glutathione, Catalase SOD and NO) were also significantly altered (p < 0.05) in the optimized extracts. The IC50 to inhibit acetylcholinesterase activity (AChE) in vitro and its concentration in brain homogenates were significantly (p < 0.05) improved by OUNJ extract as compared to the SXNJ ones. To conclude, we can say that established optimized conditions for UAE of N. jatamansi roots not only reduce the extraction time but also improved the pharmacological potential of the extracts.
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Affiliation(s)
- Ashwani Arya
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, Haryana, India
| | - Vineet Mittal
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, Haryana, India.
| | - Deepak Kaushik
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, Haryana, India
| | - Manish Kumar
- M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana (133207), Ambala, Haryana, India
| | - Saqer S Alotaibi
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif, Saudi Arabia
| | - Sarah M Albogami
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif, Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, AlBeheira, Egypt
| | - Philippe Jeandet
- University of Reims, Research Unit-Induced Resistance and Plant Bioprotection, EA 4707 - USC INRAe 1488, SFR Condorcet FR CNRS 3417, 51687 Reims, France.
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Pattanashetti LA, Patil BM, Hegde HV, Kangle RP. Potential ameliorative effect of Cynodon dactylon (L.) pers on scopolamine-induced amnesia in rats: Restoration of cholinergic and antioxidant pathways. Indian J Pharmacol 2021; 53:50-59. [PMID: 33975999 PMCID: PMC8216122 DOI: 10.4103/ijp.ijp_473_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
AIM: The present study explored Cynodon dactylon hydro-ethanolic extract (CDE) effect on scopolamine-induced amnesic rats. MATERIALS AND METHODS: C. dactylon extract was subjected to antioxidant (DPPH and H2O2) and acetylcholinesterase enzyme tests by in vitro methods. Scopolamine (1 mg/kg, i.p) was administered to rats except for normal control. Donepezil (3 mg/kg, p.o), CDE (100, 200, and 400 mg/kg p.o) were administered to treatment groups. Behavioral paradigm: Morris water maze (MWM), elevated plus maze (EPM), and passive avoidance test (PAT) were conducted. Later, rats were sacrificed and brain homogenate was tested for levels of acetylcholinesterase, glutathione, and lipid peroxidase. Histopathology examination of cortex and hippocampus of all the groups was done. STATISTICAL METHOD: The statistical methods used were ANOVA and Tukey's post hoc test. RESULTS: CDE antioxidant activity was demonstrated by decreasing DPPH and H2O2 levels confirmed through in vitro analysis. Treatment group rats reversed scopolamine induced amnesia by improvement in spatial memory, decreased transfer latency and increased step through latency significantly (P<0.001) in behavior models such as morris water maze, elevated plus maze and passive avoidance task respectively. CDE modulated acetylcholine transmission by decreased acetylcholinesterase enzyme level (P < 0.001) and scavenging scopolamine-induced oxidative stress by increased reduced glutathione levels and decreased lipid peroxidation levels in the rat brain. CDE and donepezil-treated rats showed mild neurodegeneration in comparison to scopolamine-induced severe neuronal damage on histopathology examination. CONCLUSION: C. dactylon extract provides evidence of anti-amnesic activity by the mechanism of decreased acetylcholinesterase enzyme level and increased antioxidant levels in scopolamine-induced amnesia in rats.
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Affiliation(s)
- Laxmi A Pattanashetti
- Department of Pharmacology and Toxicology, KLE College of Pharmacy, Belagavi (A Constituent Unit of K. L. E Academy of Higher Education and Research), Belagavi, Karnataka, India
| | - Basanagouda M Patil
- Department of Pharmacology and Toxicology, KLE College of Pharmacy, Belagavi (A Constituent Unit of K. L. E Academy of Higher Education and Research), Belagavi, Karnataka, India
| | - Harsha V Hegde
- Department of Ethnomedicine and Medicinal Plants, ICMR- National Institute of Traditional Medicine, Belagavi, Karnataka, India
| | - Ranjit P Kangle
- Department of Pathology, Jawaharlal Nehru Medical College, Belagavi, Karnataka, India
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Gorgani S, Jahanshahi M, Elyasi L. Taurine Prevents Passive Avoidance Memory Impairment, Accumulation of Amyloid-β Plaques, and Neuronal Loss in the Hippocampus of Scopolamine-Treated Rats. NEUROPHYSIOLOGY+ 2019. [DOI: 10.1007/s11062-019-09810-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Marefati N, Mokhtari-Zaer A, Beheshti F, Karimi S, Mahdian Z, Khodamoradi M, Hosseini M. The effects of soy on scopolamine-induced spatial learning and memory impairments are comparable to the effects of estradiol. Horm Mol Biol Clin Investig 2019; 39:/j/hmbci.2019.39.issue-3/hmbci-2018-0084/hmbci-2018-0084.xml. [PMID: 31483756 DOI: 10.1515/hmbci-2018-0084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 05/03/2019] [Indexed: 11/15/2022]
Abstract
Background Modulatory effects of soy extract and estradiol on the central nervous system (CNS) have been reported. The effect of soy on scopolamine-induced spatial learning and memory in comparison to the effect of estradiol was investigated. Materials and methods Ovariectomized rats were divided into the following groups: (1) control, (2) scopolamine (Sco), (3) scopolamine-soy 20 (Sco-S 20), (4) scopolamine-soy 60 (Sco-S 60), (5) scopolamine-estradiol 20 (Sco-E 20) and (6) scopolamine-estradiol 60 (Sco-E 60). Soy extract, estradiol and vehicle were administered daily for 6 weeks before training in the Morris water maze (MWM) test. Scopolamine (2 mg/kg) was injected 30 min before training in the MWM test. Results In the MWM, the escape latency and traveled path to find the platform in the Sco group was prolonged compared to the control group (p < 0.001). Treatment by higher doses of soy improved performances of the rats in the MWM (p < 0.05 - p < 0.001). However, treatment with both doses of estradiol (20 and 60 μg/kg) resulted in a statistically significant improvement in the MWM (p < 0.01 - p < 0.001). Cortical, hippocampal and serum levels of malondialdehyde (MDA), as an index of lipid peroxidation, were increased which was prevented by soy extract and estradiol (p < 0.001). Cortical, hippocampal as well as serum levels of the total thiol, superoxide dismutase (SOD) and catalase (CAT) in Sco group were lower than the control group (p < 0.001) while they were enhanced when the animals were treated by soy extract and estradiol (p < 0.01 - p < 0.001). Conclusions It was observed that both soy extract and estradiol prevented learning and memory impairments induced by scopolamine in ovariectomized rats. These effects can be attributed to their protective effects on oxidative damage of the brain tissue.
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Affiliation(s)
- Narges Marefati
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amin Mokhtari-Zaer
- Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farimah Beheshti
- Department of Basic Science and Neuroscience Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | - Sareh Karimi
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Mahdian
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Khodamoradi
- Substance Abuse Prevention Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mahmoud Hosseini
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center and Department of Physiology, Faculty of Medicine, Azadi Square, Mashhad, Iran
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran, Phone: +98-51-38828565, Fax: +98-51-38828564
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Effects of Ficus umbellata (Moraceae) Aqueous Extract and 7-Methoxycoumarin on Scopolamine-Induced Spatial Memory Impairment in Ovariectomized Wistar Rats. Behav Neurol 2018; 2018:5751864. [PMID: 30363978 PMCID: PMC6186347 DOI: 10.1155/2018/5751864] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 07/10/2018] [Indexed: 11/29/2022] Open
Abstract
The present work was undertaken to evaluate the ability of F. umbellata aqueous extract and its major component 7-methoxycoumarin (MC) to improve scopolamine-induced spatial memory impairment in ovariectomized Wistar rats. For this to be done, 10 sham-operated and 30 postmenopausal-like rats were randomly distributed in eight groups (n = 5) and treated with distilled water (2 mL/250 g), estradiol valerate (1 mg/kg BW), piracetam (1.5 mg/kg BW), F. umbellata aqueous extract (50 and 200 mg/kg BW), or MC (1 mg/kg BW) for 21 consecutive days. Before and after the memory impairment with scopolamine (2 mg/kg BW), animals underwent behavioral evaluations on Y- and radial mazes. As results, age and ovariectomy did not induce significant changes in the reference memory errors. While age decreased working memory errors, ovariectomy increased it. The MC as well as F. umbellata extract significantly increased (p < 0.01) the percentage of spontaneous alternation and decreased (p < 0.001) working and spatial reference memory errors and anxiety parameters (rearing and grooming) in ovariectomized rats. MC significantly reduced (p < 0.05) the MDA level, but resulted in an increase in GSH level in brain homogenates. These results suggest that MC is endowed with neuroprotective effects and could account for the neuroprotective effects of F. umbellata in rats.
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Corcoran KA, Yamawaki N, Leaderbrand K, Radulovic J. Role of retrosplenial cortex in processing stress-related context memories. Behav Neurosci 2018; 132:388-395. [PMID: 29878804 DOI: 10.1037/bne0000223] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This work summarizes evidence for the role of RSC in processing fear-inducing context memories. Specifically, we discuss molecular, cellular, and network mechanisms by which RSC might contribute the processing of contextual fear memories. We focus on glutamatergic and cholinergic mechanisms underlying encoding, retrieval, and extinction of context-dependent fear. RSC mechanisms underlying retrieval of recently and remotely acquired memories are compared to memory mechanisms of anterior cortices. Due to the strong connectivity between hippocampus and RSC, we also compare the extent to which their mechanisms of encoding, retrieval, and extinction show overlap. At a theoretical level, we discuss the role of RSC in the framework of systems consolidation as well as retrieval-induced memory modulation. Lastly, we emphasize the implication of these findings for psychopathologies associated with neurological and psychiatric disorders. (PsycINFO Database Record (c) 2018 APA, all rights reserved).
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Affiliation(s)
- Kevin A Corcoran
- Department of Psychiatry and Behavioral Sciences, Northwestern University
| | | | | | - Jelena Radulovic
- Department of Psychiatry and Behavioral Sciences, Northwestern University
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Lee JC, Kim IH, Cho JH, Lee TK, Park JH, Ahn JH, Shin BN, Yan BC, Kim JD, Jeon YH, Lee YJ, Won MH, Kang IJ. Vanillin improves scopolamine‑induced memory impairment through restoration of ID1 expression in the mouse hippocampus. Mol Med Rep 2018; 17:4399-4405. [PMID: 29328430 PMCID: PMC5802214 DOI: 10.3892/mmr.2018.8401] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 09/26/2017] [Indexed: 11/06/2022] Open
Abstract
4-Hydroxy-3-methoxybenzaldehyde (vanillin), contained in a number of species of plant, has been reported to display beneficial effects against brain injuries. In the present study, the impact of vanillin on scopolamine‑induced alterations in cognition and the expression of DNA binding protein inhibitor ID‑1 (ID1), one of the inhibitors of DNA binding/differentiation proteins that regulate gene transcription, in the mouse hippocampus. Mice were treated with 1 mg/kg scopolamine with or without 40 mg/kg vanillin once daily for 4 weeks. Scopolamine‑induced cognitive impairment was observed from 1 week and was deemed to be severe 4 weeks following the administration of scopolamine. However, treatment with vanillin in scopolamine‑treated mice markedly attenuated cognitive impairment 4 weeks following treatment with scopolamine. ID1‑immunoreactive cells were revealed in the hippocampus of vehicle‑treated mice, and were hardly detected 4 weeks following treatment with scopolamine. However, treatment with vanillin in scopolamine‑treated mice markedly restored ID1‑immunoreactive cells and expression 4 weeks subsequent to treatment. The results of the present study suggested that vanillin may be beneficial for cognitive impairment, by preventing the reduction of ID1 expression which may be associated with cognitive impairment.
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Affiliation(s)
- Jae-Chul Lee
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - In Hye Kim
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Jeong Hwi Cho
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Tae-Kyeong Lee
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Joon Ha Park
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Ji Hyeon Ahn
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Bich Na Shin
- Department of Physiology, College of Medicine, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Bing Chun Yan
- Institute of Integrative Traditional and Western Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Jong-Dai Kim
- Division of Food Biotechnology, School of Biotechnology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Yong Hwan Jeon
- Department of Radiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24289, Republic of Korea
| | - Young Joo Lee
- Department of Emergency Medicine, Seoul Hospital, College of Medicine, Sooncheonhyang University, Seoul 04401, Republic of Korea
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Il Jun Kang
- Department of Food Science and Nutrition, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
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Arafa NMS, Ali EHA, Hassan MK. Canagliflozin prevents scopolamine-induced memory impairment in rats: Comparison with galantamine hydrobromide action. Chem Biol Interact 2017; 277:195-203. [PMID: 28837785 DOI: 10.1016/j.cbi.2017.08.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 07/23/2017] [Accepted: 08/18/2017] [Indexed: 12/23/2022]
Abstract
Canagliflozin (CAN) is a sodium-glucose co-transporter 2 (SGLT2) inhibitor indicated to improve glycemic control in adults with type 2 diabetes mellitus. There is a little information about its effect on the cholinergic system that proposed mechanism for memory improvement occurring by SGLT2 drugs. This study aimed to estimate the effect of CAN as compared to galantamine (GAL) treatments for two weeks on scopolamine hydrobromide (SCO)-induced memory dysfunction in experimental rats. Animals divided into six groups; control (CON), CAN, GAL, SCO, SCO + CAN and SCO + GAL. Results indicated significant decrease in body weights of the CAN groups as compared to control values. Moreover, in the SCO + CAN and SCO + GAL the number of arm entry and number of correct alternation in Y maze task increased and showed improvement in the water maze task, acetylcholinesterase (AChE) activities decreased significantly, while monoamines levels significantly increased compared with the SCO group values. Results also recorded acetylcholine M1 receptor (M1 mAChR) in SCO + CAN or SCO + GAL groups in comparison with the SCO group. The study suggested that canagliflozin might improve memory dysfunction induced by scopolamine hydrobromide via cholinergic and monoamines system.
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Affiliation(s)
- Nadia M S Arafa
- Faculty of Science, Biology Department, Jazan University, KSA & National Organization for Drug Control and Research, Department of Physiology, Egypt.
| | - Elham H A Ali
- Zoology Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt.
| | - Mohamed Kamel Hassan
- Biotechnology Program, Zoology Department, Faculty of Science, Port Said University, Port Said, Egypt.
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Patočka J, Jelínková R. ATROPINE AND ATROPINE-LIKE SUBSTANCES USABLE IN WARFARE. ACTA ACUST UNITED AC 2017. [DOI: 10.31482/mmsl.2017.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Maleki M, Hassanpour-Ezatti M, Navaeian M. Cross State-dependent Learning Interaction Between Scopolamine and Morphine in Mice: The Role of Dorsal Hippocampus. Basic Clin Neurosci 2017; 8:193-202. [PMID: 28781727 PMCID: PMC5535325 DOI: 10.18869/nirp.bcn.8.3.193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION The current study aimed at investigating the existence of the cross state-dependent learning between morphine and scopolamine (SCO) in mice by passive avoidance method, pointing to the role of CA1 area. METHODS The effects of pre-training SCO (0.75, 1.5, and 3 μg, Intra-CA1), or morphine (1, 3, and 6 mg/kg, intraperitoneal (i.p.) was evaluated on the retrieval of passive avoidance learning using step-down task in mice (n=10). Then, the effect of pretest administration of morphine (1.5, 3, and 6 mg/kg, i.p.) was examined on passive avoidance retrieval impairment induced by pre-training SCO (3 μg/mice, Intra-CA1). Next, the effect of pretest Intra-CA1 injection of scopolamine (0.75, 1.5, and 3 μg/mice) was evaluated on morphine (6 mg/kg, i.p.) pre-training deficits in this task in mice. RESULTS The pre-training Intra-CA1 injection of scopolamine (1.5 and 3 μg/mouse), or morphine (3 and 6 mg/kg, i.p.) impaired the avoidance memory retrieval when it was tested 24 hours later. Pretest injection of both drugs improved its pre-training impairing effects on mice memory. Moreover, the amnesia induced by the pre-training injections of scopolamine (3 μg/mice) was restored significantly (P<0.01) by pretest injections of morphine (3 and 6 mg/kg, i.p.). Similarly, pretest injection of scopolamine (3 μg/mice) restored amnesia induced by the pre-training injections of morphine (6 mg/kg, i.p.), significantly (P<0.01). CONCLUSION The current study findings indicated a cross state-dependent learning between SCO and morphine at CA1 level. Therefore, it seems that muscarinic and opioid receptors may act reciprocally on modulation of passive avoidance memory retrieval, at the level of dorsal hippocampus, in mice.
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Affiliation(s)
- Morteza Maleki
- Department of Biology, School of Basic Sciences, Shahed University, Tehran, Iran
| | | | - Majid Navaeian
- Department of Biology, Shahr Rey Branch, Islamic Azad University, Tehran, Iran
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Ishola IO, Adamson FM, Adeyemi OO. Ameliorative effect of kolaviron, a biflavonoid complex from Garcinia kola seeds against scopolamine-induced memory impairment in rats: role of antioxidant defense system. Metab Brain Dis 2017; 32:235-245. [PMID: 27631100 DOI: 10.1007/s11011-016-9902-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 09/01/2016] [Indexed: 02/07/2023]
Abstract
In Alzheimer's disease (AD) basal forebrain cholinergic neurons appear to be targeted primarily in early stages of the disease. Scopolamine (muscarinic receptor antagonist) has been used for decades to induce working and reference memory impairment in rodents. In this study, we evaluated the protective effect of kolaviron, a biflavonoid complex isolated from Garcinia kola seeds extract against scopolamine-induced memory impairment/oxidative stress. Rats were pretreated with kolaviron (25, 50 or 100 mg/kg p.o.) for 3 consecutive days, scopolamine (3 mg/kg, i.p.) was administered 1 h post-treatment on day 3. Five minutes post-scopolamine injection, memory function was assessed using the Y-maze or Morris water maze tests (MWM) in rats. The rats were sacrificed and brains isolated on the 8th day after the MWM test for estimation of acetylcholinesterase activity and nitrosative/oxidative stress status. Scopolamine injection induced deficit (P < 0.05) in percentage alternation behaviour in the Y-maze test indicating memory impairment which was ameliorated by kolaviron in a dose-dependent manner. Also, pre-training treatment with kolaviron significantly improved spatial learning evidenced in the session-dependent and more efficient localization of the hidden platform in the MWM test. Moreover, scopolamine injection induced significant increase in lipid peroxidation (prefrontal cortex), nitrite generation (striatum and hippocampus) and a decrease in glutathione (prefrontal cortex, striatum and hippocampus) and superoxide dismutase (striatum and hippocampus) level which was attenuated by kolaviron pre-treatment. These findings showed that kolaviron possesses cognition enhancing effect through enhancement of antioxidant defense and cholinergic systems.
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Affiliation(s)
- Ismail O Ishola
- Department of Pharmacology, Therapeutics and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, PMB 12003, Idi-araba, Lagos, Nigeria.
| | - Folasade M Adamson
- Department of Pharmacology, Therapeutics and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, PMB 12003, Idi-araba, Lagos, Nigeria
| | - Olufunmilayo O Adeyemi
- Department of Pharmacology, Therapeutics and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, PMB 12003, Idi-araba, Lagos, Nigeria
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Leaderbrand K, Chen HJ, Corcoran KA, Guedea AL, Jovasevic V, Wess J, Radulovic J. Muscarinic acetylcholine receptors act in synergy to facilitate learning and memory. ACTA ACUST UNITED AC 2016; 23:631-638. [PMID: 27918283 PMCID: PMC5066603 DOI: 10.1101/lm.043133.116] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 07/28/2016] [Indexed: 11/28/2022]
Abstract
Understanding how episodic memories are formed and retrieved is necessary if we are to treat disorders in which they malfunction. Muscarinic acetylcholine receptors (mAChR) in the hippocampus and cortex underlie memory formation, but there is conflicting evidence regarding their role in memory retrieval. Additionally, there is no consensus on which mAChR subtypes are critical for memory processing. Using pharmacological and genetic approaches, we found that (1) encoding and retrieval of contextual memory requires mAChR in the dorsal hippocampus (DH) and retrosplenial cortex (RSC), (2) memory formation requires hippocampal M3 and cooperative activity of RSC M1 and M3, and (3) memory retrieval is more impaired by inactivation of multiple M1–M4 mAChR in DH or RSC than inactivation of individual receptor subtypes. Contrary to the view that acetylcholine supports learning but is detrimental to memory retrieval, we found that coactivation of multiple mAChR is required for retrieval of both recently and remotely acquired context memories. Manipulations with higher receptor specificity were generally less potent than manipulations targeting multiple receptor subtypes, suggesting that mAChR act in synergy to regulate memory processes. These findings provide unique insight into the development of therapies for amnestic symptoms, suggesting that broadly acting, rather than receptor-specific, mAchR agonists and positive allosteric modulators may be the most effective therapeutic approach.
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Affiliation(s)
- Katherine Leaderbrand
- Department of Psychiatry and Behavioral Sciences, The Asher Center for the Study and Treatment of Depressive Disorders, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Helen J Chen
- Department of Psychiatry and Behavioral Sciences, The Asher Center for the Study and Treatment of Depressive Disorders, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Kevin A Corcoran
- Department of Psychiatry and Behavioral Sciences, The Asher Center for the Study and Treatment of Depressive Disorders, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Anita L Guedea
- Department of Psychiatry and Behavioral Sciences, The Asher Center for the Study and Treatment of Depressive Disorders, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Vladimir Jovasevic
- Department of Psychiatry and Behavioral Sciences, The Asher Center for the Study and Treatment of Depressive Disorders, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Jurgen Wess
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland 20892, USA
| | - Jelena Radulovic
- Department of Psychiatry and Behavioral Sciences, The Asher Center for the Study and Treatment of Depressive Disorders, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
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Z-Guggulsterone Improves the Scopolamine-Induced Memory Impairments Through Enhancement of the BDNF Signal in C57BL/6J Mice. Neurochem Res 2016; 41:3322-3332. [PMID: 27677871 DOI: 10.1007/s11064-016-2064-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 09/07/2016] [Accepted: 09/15/2016] [Indexed: 01/06/2023]
Abstract
Memory impairment is a common symptom in patients with neurodegenerative disorders, and its suppression could be beneficial to improve the quality of life of those patients. Z-guggulsterone, a compound extracted from the resin of plant Commiphora whighitii, exhibits numerous pharmacological effects in clinical practice, such as treatment of inflammation, arthritis, obesity and lipid metabolism disorders. However, the role and possible mechanism of Z-guggulsterone on brain-associated memory impairments are largely unknown. This issue was addressed in the present study in a memory impairment model induced by scopolamine, a muscarinic acetylcholine receptor antagonist, using the passive avoidance, Y-maze and Morris water maze tests. Results showed that scopolamine significantly decreased the step-through latency and spontaneous alternation of C57BL/6J mice in passive avoidance and Y-maze test, whereas increased the mean escape latency and decreased the swimming time in target quadrant in Morris water maze test. Pretreatment of mice with Z-guggulsterone at doses of 30 and 60 mg/kg effectively reversed the scopolamine-induced memory impairments. Mechanistic studies revealed that Z-guggulsterone pretreatment reversed the scopolamine-induced increase in acetylcholinesterase (AchE) activity, as well as decreases in brain-derived neurotrophic factor (BDNF) protein expression and cAMP response element-binding protein (CREB), extracellular regulated kinase 1/2 (ERK1/2) and protein kinase B (Akt) phosphorylation levels in the hippocampus and cortex. Inhibition of the BDNF signal, however, blocked the memory-enhancing effect of Z-guggulsterone. Therefore, these findings demonstrate that Z-guggulsterone attenuates the scopolamine-induced memory impairments mainly through activation of the CREB-BDNF signaling pathway, thereby exhibiting memory-improving effects.
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16
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Hejazian SH, Karimi S, Hosseini M, Mousavi SM, Soukhtanloo M. Protection against brain tissues oxidative damage as a possible mechanism for improving effects of low doses of estradiol on scopolamine-induced learning and memory impairments in ovariectomized rats. Adv Biomed Res 2016; 5:123. [PMID: 27563633 PMCID: PMC4976525 DOI: 10.4103/2277-9175.186981] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 05/11/2016] [Indexed: 11/18/2022] Open
Abstract
Background: Regarding the anti-oxidative effects on the central nervous system, the possible protection against brain tissues oxidative damage as a possible mechanism for improving effects of low doses of estradiol on scopolamine-induced learning and memory impairments was investigated in ovariectomized (OVX) rats. Materials and Methods: The OVX rats treated by (1) vehicle, (2) scopolamine, and (3–4) scopolamine plus estradiol (20 or 20 or 60 μg/kg). Estradiol was administered (20 or 60 μg/kg, intraperitoneally) daily for 6 weeks after ovariectomy. The rats were examined for learning and memory using passive avoidance test. Scopolamine (2 mg/kg) was injected 30 min after training in the test. The brains were then removed to determine malondialdehyde (MDA) and thiol contents. Results: Scopolamine shortened the time latency to enter the dark compartment in (P < 0.01). Compared to scopolamine, pretreatment by both doses of estradiol prolonged the latency to enter the dark compartment (P < 0.01). The brain tissues MDA concentration as an index of lipid peroxidation was decreased (P < 0.05). Pretreatment by estradiol lowered the concentration of MDA, while it increased thiol content compared to scopolamine (P < 0.05 and P < 0.01). Conclusions: These results allow us to suggest a protection against brain tissues oxidative damage as a possible mechanism for improving effects of low doses of estradiol on scopolamine-induced learning and memory impairments in OVX rats.
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Affiliation(s)
| | - Sareh Karimi
- Neurocognitive Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Hosseini
- Neurocognitive Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mojtaba Mousavi
- Neurogenic Inflammation Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Soukhtanloo
- Department of Biochemistry, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Foyet HS, Abaïssou HHN, Wado E, Acha EA, Alin C. Emilia coccinae (SIMS) G Extract improves memory impairment, cholinergic dysfunction, and oxidative stress damage in scopolamine-treated rats. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:333. [PMID: 26400617 PMCID: PMC4580266 DOI: 10.1186/s12906-015-0864-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 09/16/2015] [Indexed: 12/25/2022]
Abstract
BACKGROUND E. coccinae (SIMS) G. (Asteraceae) is an annual plant commonly found throughout the plain of the Central Africa and widely used in Cameroonian folk medicine for the treatment of fever and convulsions in children. We previously reported that the methanolic extract of this plant improved spatial memory. However no underlying mechanism was explored. The present study was undertaken to investigate the effects of the hydroalcoholic extract of Emilia coccinae on memory in scopolamine treated rats and to propose possible mechanisms of action. METHODS Novel object recognition and Y-maze paradigm were used to test memory while oxidative profile, AChE and ACh level of the whole brain were assessed to outline the mechanism of nootropic activity of the extract. 200 and 400 mg/kg of the extract were chronically administrated during 14 consecutive days in separate groups of scopolamine intraperitoneal treated rats (1.5 mg/kg). RESULTS The hydroalcoholic extract of Emilia coccinae (HEEC) at the dose of 200 mg/kg significantly improved the memory of rats and reversed the amnesia induced by scopolamine. In addition, we showed that this extract is decreasing the acetyl cholinesterase activity while also increasing the acetylcholine levels in the brain. HEEC (200 and 400 mg/kg) significantly increased antioxidant enzyme activities (SOD, GSH and CAT) and reduced lipid peroxidation (MDA level) in the rat whole brain homogenates. CONCLUSIONS Taken together, our results suggested that the hydroalcoholic extract of Emilia coccinae ameliorated the cognitive dysfunction in scopolamine treated rats through the blockage of the oxidative effect of scopolamine and inhibition of AChE activity.
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Affiliation(s)
- Harquin Simplice Foyet
- Department of Biological Sciences, Faculty of Science, University of Maroua, Cameroon. P.O. Box: 814, Maroua, Cameroon.
| | - Hervé Hervé Ngatanko Abaïssou
- Department of Life and Earth Sciences, Higher Teachers' Training College, University of Maroua, P.O. Box: 55, Maroua, Cameroon.
| | - Eglantine Wado
- Department of Agriculture, Cattle farming and Derived products, High Institute of the Sahel, University of Maroua, P.O. Box: 46, Maroua, Cameroon.
| | - Emmanuel Asongalem Acha
- Department of Biomedical Science, Faculty of Health Sciences, University of Buea, P.O. Box 63, Buea, Cameroon.
| | - Ciobica Alin
- Alexandru Ioan Cuza University, 11 Carol I Blvd., 700506, Iasi, Romania.
- Center of Biomedical Research of the Romanian Academy, Iasi Branch, Romania.
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Stangherlin EC, Nogueira CW. Diphenyl ditelluride induces anxiogenic-like behavior in rats by reducing glutamate uptake. Biol Trace Elem Res 2014; 158:392-8. [PMID: 24715661 DOI: 10.1007/s12011-014-9960-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 03/26/2014] [Indexed: 01/22/2023]
Abstract
Anxiety-related disorders are a common public health issue. Several lines of evidence suggest that altered glutamatergic neurotransmission underlies anxiety. The present study evaluated the effect of diphenyl ditelluride [(PhTe)2] exposure on the behavioral performance of rats and examined whether the behavioral effects could be attributed to changes in the modulation of glutamatergic function. Rats were exposed to (PhTe)2 (subcutaneously) during 8 weeks-final dose one third LD50 (124 μg/kg). The testing schedule included elevated plus-maze, open-field, T-maze, rotorod, and Morris water maze tests. Synaptosomal basal [(3)H] glutamate release and uptake were also evaluated. The time spent in the open arm and the ratio of time spent in the open arm/total were decreased in the (PhTe)2 group. Furthermore, the [(3)H] glutamate uptake was decreased in this experimental group. The results suggest that exposure to (PhTe)2 did not change motor abilities whereas it may result in anxiogenic-like behavior, induced by changes in the glutamatergic system at the pre-synaptic level.
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Affiliation(s)
- Eluza Curte Stangherlin
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
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