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Koszła O, Sołek P, Woźniak S, Kędzierska E, Wróbel TM, Kondej M, Archała A, Stępnicki P, Biała G, Matosiuk D, Kaczor AA. The Antipsychotic D2AAK1 as a Memory Enhancer for Treatment of Mental and Neurodegenerative Diseases. Int J Mol Sci 2020; 21:E8849. [PMID: 33238370 PMCID: PMC7700684 DOI: 10.3390/ijms21228849] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/15/2020] [Accepted: 11/19/2020] [Indexed: 11/23/2022] Open
Abstract
The treatment of memory impairments associated with the central nervous system diseases remains an unmet medical need with social and economic implications. Here we show, that a multi-target ligand of aminergic G protein-coupled receptors with antipsychotic activity in vivo (D2AAK1) stimulates neuron growth and survival and promotes neuron integrity. We focused on the multilevel evaluation of the D2AAK1-related effects on neurons in terms of behavioral, cellular, molecular, and biochemical features in vivo and in vitro, such as memory-related responses, locomotor activity, tissue sections analysis, metabolic activity, proliferation level, neurons morphology, and proteins level involved in intracellular signaling pathways. In silico studies indicate that activation of calcium/calmodulin-dependent protein kinase I (CaMKI) may underline some of the observed activities of the compound. Furthermore, the compound increases hippocampal neuron proliferation via the activation of neurotrophic factors and cooperating signals responsible for cell growth and proliferation. D2AAK1 improves memory and learning processes in mice after both acute and chronic administration. D2AAK1 also causes an increase in the number of hippocampal pyramidal neurons after chronic administration. Because of its neuroprotective properties and pro-cognitive activity in behavioral studies D2AAK1 has the potential for the treatment of memory disturbances in neurodegenerative and mental diseases.
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Affiliation(s)
- Oliwia Koszła
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodzki St., 20-093 Lublin, Poland; (S.W.); (T.M.W.); (M.K.); (P.S.); (D.M.)
| | - Przemysław Sołek
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszow, 1 Pigonia St., 35-310 Rzeszow, Poland;
| | - Sylwia Woźniak
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodzki St., 20-093 Lublin, Poland; (S.W.); (T.M.W.); (M.K.); (P.S.); (D.M.)
| | - Ewa Kędzierska
- Department of Pharmacology and Pharmacodynamics, Faculty of Pharmacy, Medical University of Lublin, 4A Chodzki St., 20-093 Lublin, Poland; (E.K.); (G.B.)
| | - Tomasz M. Wróbel
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodzki St., 20-093 Lublin, Poland; (S.W.); (T.M.W.); (M.K.); (P.S.); (D.M.)
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Magda Kondej
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodzki St., 20-093 Lublin, Poland; (S.W.); (T.M.W.); (M.K.); (P.S.); (D.M.)
| | - Aneta Archała
- Department of Biopharmacy, Medical University of Lublin, 4A Chodzki St., 20-093 Lublin, Poland;
| | - Piotr Stępnicki
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodzki St., 20-093 Lublin, Poland; (S.W.); (T.M.W.); (M.K.); (P.S.); (D.M.)
| | - Grażyna Biała
- Department of Pharmacology and Pharmacodynamics, Faculty of Pharmacy, Medical University of Lublin, 4A Chodzki St., 20-093 Lublin, Poland; (E.K.); (G.B.)
| | - Dariusz Matosiuk
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodzki St., 20-093 Lublin, Poland; (S.W.); (T.M.W.); (M.K.); (P.S.); (D.M.)
| | - Agnieszka A. Kaczor
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodzki St., 20-093 Lublin, Poland; (S.W.); (T.M.W.); (M.K.); (P.S.); (D.M.)
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland
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Zhao H, Jin T, Cheng X, Qin J, Zhang L, He H, Xue J, Jin G. GAS5 which is regulated by Lhx8 promotes the recovery of learning and memory in rats with cholinergic nerve injury. Life Sci 2020; 260:118388. [PMID: 32890602 DOI: 10.1016/j.lfs.2020.118388] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 08/03/2020] [Accepted: 08/30/2020] [Indexed: 01/24/2023]
Abstract
Damage to the cholinergic system in central nervous system injuries such as traumatic brain injury (TBI) and neurodegenerative diseases leads to impaired learning and cognition. Neural stem cells (NSCs) have self-renewal capacity and multi-directional differentiation potential and considered the best source of cells for cell replacement therapy. However, how to promote the differentiation of NSCs into neurons is a major challenge in current research. Lhx8 has a specific effect on the development of the cholinergic nervous system, but its exact function is unclear. In this study, we found that Lhx8 could regulate the expression of Growth arrest-specific (GAS)5 which has been implicated in cancer but was less studied in the nervous system. Additionally, results from PCR, fluorescence in situ hybridization, and immunocytochemical analyses showed that GAS5 is mainly expressed in the cytoplasm of hippocampal neural stems cells and promotes their differentiation into neurons; the Morris water maze test demonstrated that GAS5 overexpression restored learning and memory in rats with cholinergic injury. These findings indicate that GAS5, which is regulated by Lhx8, improve brain function following cholinergic nerve injury.
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Affiliation(s)
- Heyan Zhao
- Department of Human Anatomy, The Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
| | - Tianren Jin
- Department of Human Anatomy, The Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
| | - Xiang Cheng
- Department of Human Anatomy, The Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
| | - Jianbing Qin
- Department of Human Anatomy, The Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
| | - Lei Zhang
- Department of Human Anatomy, The Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
| | - Hui He
- Department of Human Anatomy, The Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
| | - Jianhua Xue
- Departments of Emergency Surgery, Affiliated Hospital of Nantong University, Nantong, Nantong, China
| | - Guohua Jin
- Department of Human Anatomy, The Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China.
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Orzelska-Górka J, Bernat P, Tutka P, Listos J, Kędzierska E, Fidecka S, Talarek S. Modification of NO-cGMP Pathway Differentially Affects Diazepam- and Flunitrazepam-Induced Spatial and Recognition Memory Impairments in Rodents. Neurotox Res 2019; 37:1036-1046. [PMID: 31792805 PMCID: PMC7085477 DOI: 10.1007/s12640-019-00110-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/04/2019] [Accepted: 09/10/2019] [Indexed: 01/02/2023]
Abstract
This study investigated the influence of sildenafil and methylene blue (MB), two modulators of the nitric oxide (NO)-cyclic guanosine-3',5'-monophosphate (cGMP) pathway on amnesic effects of two benzodiazepines (BZs) (diazepam (DZ) and flunitrazepam (FNZ)), in rodents-mice and rats. In the modified elevated plus maze (mEPM) and novel object recognition (NOR) tests, MB given ip at a dose of 5 mg/kg 5 min prior to DZ administration (0.25 or 1 mg/kg, sc) enhanced/induced memory impairment caused by DZ. When MB (2.5, 5, and 10 mg/kg) was applied 5 min prior to FNZ administration (0.05 and 0.1 mg/kg), an effect was opposite and memory impairment induced by FNZ was reduced. When sildenafil (2.5 and 5 mg/kg, ip) was applied 5 min prior to DZ, we observed a reduction of DZ-induced memory deficiency in the mEPM test. A similar effect of sildenafil was shown in the NOR test when the drug was applied at doses of 1.25, 2.5, and 5 mg/kg prior to DZ. In the mEPM test, sildenafil at abovementioned doses had no effects on FNZ-induced memory impairment. In turns, sildenafil administered at doses of 2.5 and 5 mg/kg increased the effect of FNZ on memory impairment in the NOR test. In conclusion, the NO-cGMP pathway is involved differentially into BZs-induced spatial and recognition memory impairments assessed using the NOR and mEPM tests. Modulators of the NO-cGMP pathway affect animal behavior in these tests in a different way depending on what benzodiazepine is applied.
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Affiliation(s)
- Jolanta Orzelska-Górka
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland.
| | - Piotr Bernat
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland
| | - Piotr Tutka
- Department of Experimental and Clinical Pharmacology, University of Rzeszów, Al. Kopisto 2a, 35-959, Rzeszów, PL, Poland.,Laboratory for Innovative Research in Pharmacology, University of Rzeszów, Warzywna 1a, 35-959, Rzeszów, PL, Poland.,National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Joanna Listos
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland
| | - Ewa Kędzierska
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland
| | - Sylwia Fidecka
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland
| | - Sylwia Talarek
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland
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Chiroma SM, Hidayat Baharuldin MT, Mat Taib CN, Amom Z, Jagadeesan S, Adenan MI, Mohd Moklas MA. Protective effect of Centella asiatica against D-galactose and aluminium chloride induced rats: Behavioral and ultrastructural approaches. Biomed Pharmacother 2018; 109:853-864. [PMID: 30551539 DOI: 10.1016/j.biopha.2018.10.111] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 10/16/2018] [Accepted: 10/20/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is a neurodegenerative disorder and the commonest cause of dementia among the aged people. D-galactose (D-gal) is a senescence agent, while aluminium is a known neurotoxin linked to pathogenesis of AD. The combined administration of rats with d-gal and aluminium chloride (AlCl3) is considered to be an easy and a cheap method to obtain an animal model of AD. The plant Centella asiatica (CA) is reported to exert neuroprotective effects both in vitro and in vivo. Therefore, this study explored the protective effects of CA on cognition and brain ultrastructure in d-gal and AlCl3 induced rats. MATERIALS AND METHODS Rats were exposed to d-gal 60 mg/kg/b.wt/day + AlCl3 200 mg/kg/b.wt/day and CA (200, 400 and 800 mg/kg/b.wt/day) and 1 mg/kg/b.wt/day of donepezil for 70 days. Different cognitive paradigms viz. T maze spontaneous alternation, modified elevated plus maze and novel object recognition test, were used to evaluate full lesions of the hippocampus, spatial learning and memory and non-spatial learning and memory respectively. Nissl's staining was used to determine the survival of hippocampus CA1 pyramidal cells, while transmission electron microscopy was used to check the ultrastructural changes. RESULTS The results revealed that d-gal and AlCl3 could significantly impair behavior and cognitive functions, besides causing damage to the hippocampal CA1 pyramidal neurons in rats. In addition, it also caused ultrastructural morphological alterations in rat hippocampus. Conversely, co-administration o;f CA, irrespective of the dosage used, alleviated the cognitive impairments and pathological changes in the rats comparable to donepezil. CONCLUSION In conclusion the results suggest that CA could protect cognitive impairments and morphological alterations caused by d-gal and AlCl3 toxicity in rats. Biochemical and molecular studies are ongoing to elucidate the probable pharmacodynamics of CA.
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Affiliation(s)
- Samaila Musa Chiroma
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia; Department of Human Anatomy, Faculty of Basic Medical Sciences, University of Maiduguri, Borno State, Nigeria
| | | | - Che Norma Mat Taib
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
| | | | - Saravanan Jagadeesan
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia; Department of Human Anatomy, Universiti Tunku Abdul Rahman, Sungai Long, Malaysia
| | - Mohd Ilham Adenan
- Atta-ur-Rahman Institute for Natural Product Discovery, UiTM Puncak Alam, Malaysia
| | - Mohamad Aris Mohd Moklas
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia.
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Hu S, Shi J, Xiong W, Li W, Fang L, Feng H. Oxiracetam or fastigial nucleus stimulation reduces cognitive injury at high altitude. Brain Behav 2017; 7:e00762. [PMID: 29075554 PMCID: PMC5651378 DOI: 10.1002/brb3.762] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 06/04/2017] [Accepted: 06/07/2017] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Cognitive impairment is common in people travelling to high altitude. Oxiracetam and electrical stimulation of cerebellar fastigial nucleus may have beneficial impacts. This study was to investigate the effects of preconditioning with Oxiracetam or fastigial nucleus stimulation (FNS) on cognitive decline following the ascension to high altitude. METHODS The study was conducted on 60 male military voluntary members who were divided into control group, Oxiracetam group, and fastigial nucleus stimulation group. Transcranial doppler sonography, auditory evoked potential, electroencephalogram (EEG), and cognitive assessments were performed. RESULTS People could still suffer cognitive dysfunction at 4,000 m high altitude despite that they have lived at 1,800 m altitude for several years. The 4,000 m altitude environment also prolonged P300 and N200 latencies. Both Oxiracetam and FNS improved cognitive function, reduced the prolonged latencies of Event Related Potentials (P300 and N200), decreased the average velocity of brain arteries, and enhanced EEG power spectral entropy at 4,000 m altitude. CONCLUSIONS Neurophysiological evidences suggest the underlying mechanism of cognitive impairments. Both Oxiracetam and FNS can reduce cognitive decline post arrival at high altitude. They could be a potential pretreatment method for cognitive dysfunction resulted from high altitude.
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Affiliation(s)
- ShengLi Hu
- Department of Neurosurgery Southwest Hospital Collaborative Innovation Center for Brain Science Third Military Medical University Chong Qing China
| | - JianTao Shi
- Department of Neurosurgery Southwest Hospital Collaborative Innovation Center for Brain Science Third Military Medical University Chong Qing China
| | - Wei Xiong
- Department of Respiration Southwest Hospital Collaborative Innovation Center for Brain Science Third Military Medical University Chong Qing China
| | - WeiNa Li
- Department of Neurosurgery Southwest Hospital Collaborative Innovation Center for Brain Science Third Military Medical University Chong Qing China
| | - LiChao Fang
- Department of Laboratory Medicine Southwest Hospital Collaborative Innovation Center for Brain Science Third Military Medical University Chong Qing China
| | - Hua Feng
- Department of Neurosurgery Southwest Hospital Collaborative Innovation Center for Brain Science Third Military Medical University Chong Qing China
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Yao XL, Yao ZH, Li L, Nie L, Zhang SF. Oxiracetam can improve cognitive impairment after chronic cerebral hypoperfusion in rats. Psychiatry Res 2016; 246:284-292. [PMID: 27741481 DOI: 10.1016/j.psychres.2016.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 08/10/2016] [Accepted: 10/04/2016] [Indexed: 10/20/2022]
Abstract
Chronic cerebral hypoperfusion (CCH) induces cognitive deficits. Although CCH can be improved, cognitive impairment is not improved accordingly. To date, many studies have focused on investigating the pathophysiological mechanisms of CCH; however, the treatment of the induced cognitive impairment remains ineffective. Thus, the mechanisms underlying cognitive impairment after CCH and potential agents for treating this impairment need to be explored further. Oxiracetam is a nootropic drug that improves clinical outcomes for some central nervous system (CNS) disorders. Whether it can improve cognitive impairment after CCH is unknown. In this study, we used behavioural methods, electrophysiology, biochemistry, histopathological staining and transmission electron microscope to investigate rat's cognitive impairment by CCH, and found that Oxiracetam could improve CCH-induced cognitive impairment and prevent deficits of neural plasticity, white matter lesions, and synaptic ultrastructure. These results suggest that Oxiracetam may be effective as a potential agent against CCH-induced cognitive impairment.
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Affiliation(s)
- Xiao-Li Yao
- Department of Neurology, Central hospital of Zhengzhou, #195 Tongbo Road, Zhengzhou, China; Department of Neurology, Renmin hospital of Wuhan University, #238 Jiefang Road, Wuhan, China
| | - Zhao-Hui Yao
- Department of Geriatrics, Renmin hospital of Wuhan University, #238 Jiefang Road, Wuhan, China; Department of Neurology, Renmin hospital of Wuhan University, #238 Jiefang Road, Wuhan, China.
| | - Li Li
- Department of Geriatrics, Renmin hospital of Wuhan University, #238 Jiefang Road, Wuhan, China; Department of Neurology, Renmin hospital of Wuhan University, #238 Jiefang Road, Wuhan, China
| | - Li Nie
- Department of Geriatrics, Renmin hospital of Wuhan University, #238 Jiefang Road, Wuhan, China; Department of Neurology, Renmin hospital of Wuhan University, #238 Jiefang Road, Wuhan, China
| | - Shao-Feng Zhang
- Department of Geriatrics, Renmin hospital of Wuhan University, #238 Jiefang Road, Wuhan, China; Department of Neurology, Renmin hospital of Wuhan University, #238 Jiefang Road, Wuhan, China
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Silva AF, Sousa DS, Medeiros AM, Macêdo PT, Leão AH, Ribeiro AM, Izídio GS, Silva RH. Sex and estrous cycle influence diazepam effects on anxiety and memory: Possible role of progesterone. Prog Neuropsychopharmacol Biol Psychiatry 2016; 70:68-76. [PMID: 27208614 DOI: 10.1016/j.pnpbp.2016.05.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/10/2016] [Accepted: 05/17/2016] [Indexed: 12/13/2022]
Abstract
Studies with rodents and humans show the relationship between female sex hormones and cognitive/emotional tasks. However, despite the greater incidence of anxiety disorders in women, the data are still inconclusive regarding the mechanisms related to this phenomenon. We evaluated the effects of a classical anxiolytic/amnestic drug (diazepam; DZP) on female (at different estrous cycle phases) and male rats tested in the plus-maze discriminative avoidance task (PMDAT), that allows the concomitant evaluation of memory and anxiety-like behavior. Further, in order to investigate the role of progesterone and its metabolites in the effects of DZP in the PMDAT, female rats were pre-treated with the progesterone receptor antagonist mifepristone or the 5-alpha-reductase inhibitor finasteride. The main findings were: (1) DZP caused memory impairment and anxiolysis in both sexes, but only the highest dose induced the anxiolytic effect in females; (2) females in proestrus did not present the amnestic and anxiolytic effects of DZP (at 2.0 and 4.0mg/kg, respectively) and (3) the co-administration of mifepristone reestablished both amnestic and anxiolytic effects of DZP, while finasteride reinstated the amnestic effect in proestrus female rats. These results suggest that changes in the endogenous levels of progesterone and its metabolites are important in the modulation of emotional/cognitive behavior in female rats. Based on the influence on different aspects of DZP action, the mechanisms related to this modulation are probably linked to GABAergic transmission, but this point remains to be investigated. Further, the variation in therapeutic and adverse effects of DZP depending on sex and hormonal state is of great relevance considering the higher prevalence of anxiety disorders in women.
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Affiliation(s)
- Anatildes Feitosa Silva
- Memory Studies Laboratory, Physiology Department, Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | - Diego Silveira Sousa
- Memory Studies Laboratory, Physiology Department, Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | - André Macêdo Medeiros
- Laboratory of Behavioral Neuroscience, Pharmacology Department, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Priscila Tavares Macêdo
- Memory Studies Laboratory, Physiology Department, Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | - Anderson Henrique Leão
- Memory Studies Laboratory, Physiology Department, Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | - Alessandra Mussi Ribeiro
- Laboratory of Neuroscience and Bioprospecting of Natural Products, Biosciences Department, Universidade Federal de São Paulo, Santos, Brazil
| | - Geison Souza Izídio
- Laboratory of Behavioral Genetics, Cell Biology, Embryology and Genetics Department, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Regina Helena Silva
- Memory Studies Laboratory, Physiology Department, Universidade Federal do Rio Grande do Norte, Natal, Brazil; Laboratory of Behavioral Neuroscience, Pharmacology Department, Universidade Federal de São Paulo, São Paulo, Brazil.
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Ma D, Zhu Y, Li Y, Yang C, Zhang L, Li Y, Li L, Zhang L. Beneficial effects of cornel iridoid glycoside on behavioral impairment and senescence status in SAMP8 mice at different ages. Behav Brain Res 2016; 312:20-9. [PMID: 27283974 DOI: 10.1016/j.bbr.2016.06.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 06/01/2016] [Accepted: 06/05/2016] [Indexed: 11/27/2022]
Abstract
The aim of the present study was to investigate the effects of cornel iridoid glycoside (CIG) on behavioral changes and senescent status in senescence-accelerated mouse-prone 8 (SAMP8) mice at different ages (6, 10, and 14 months old). The learning and memory ability, the motor function and the aging conditions of SAMP8 mice were evaluated after CIG treatment in this study. Results showed that intragastrical administration of CIG (100 and 200mg/kg) for two months obviously improved the impaired cognitive ability of SAMP8 mice at the age of 6 months and 10 months, respectively. The treatment with CIG significantly increased the motor function of SAMP8 mice at 10 months and 14 months of age, respectively. CIG also evidently decreased the high grading score of senescence and increased the low surviving rate of SAMP8 mice at the age of 14 months. In addition, CIG treatment inhibited tau hyperphosphorylation in the hippocampus and striatum of SAMP8 mice at different ages. Together, these results indicate that CIG represent a potentially useful treatment for ameliorating the impaired cognitive ability, the motor dysfunction, aging conditions and hyperphosphorylation of tau in aging and age-related neurodegenerative diseases, such as Alzheimer's disease.
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Affiliation(s)
- Denglei Ma
- Department of Pharmacology, Xuanwu Hospital of Capital Medical University, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Yanqiu Zhu
- Department of Pharmacology, Xuanwu Hospital of Capital Medical University, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Yanzheng Li
- Department of Pharmacology, Xuanwu Hospital of Capital Medical University, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Cuicui Yang
- Department of Pharmacology, Xuanwu Hospital of Capital Medical University, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Li Zhang
- Department of Pharmacology, Xuanwu Hospital of Capital Medical University, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Yali Li
- Department of Pharmacology, Xuanwu Hospital of Capital Medical University, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Lin Li
- Department of Pharmacology, Xuanwu Hospital of Capital Medical University, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China.
| | - Lan Zhang
- Department of Pharmacology, Xuanwu Hospital of Capital Medical University, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China.
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Influence of acute or chronic calcium channel antagonists on the acquisition and consolidation of memory and nicotine-induced cognitive effects in mice. Naunyn Schmiedebergs Arch Pharmacol 2013; 386:651-64. [PMID: 23579386 PMCID: PMC3676638 DOI: 10.1007/s00210-013-0866-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Accepted: 04/01/2013] [Indexed: 01/16/2023]
Abstract
Nicotinic cholinergic receptors (nAChRs) form a heterogeneous family of ligand-gated ion channels found in the nervous system. The main objective of our research was to investigate the interaction between cholinergic nicotinic system and calcium homeostasis in cognitive processes using the modified elevated plus maze memory model in mice. The time each mouse took to move from the open arm to either of the enclosed arms on the retention trial (transfer latency, TL2) was used as an index of memory. Our results showed that a single injection of nicotine (0.035 and 0.175 mg/kg) shortened TL2 values, improving memory-related processes. Similarly, L-type calcium channel antagonists (CCAs), i.e., flunarizine, verapamil, amlodipine, nimodipine, nifedipine, and nicardipine (at the range of dose 5–20 mg/kg) administered before or after training, decreased TL2 value improving memory acquisition and/or consolidation. Interestingly, at the subthresold doses, flunarizine, nicardipine, amlodipine, verapamil, and bupropion, a nAChR antagonist, significantly reversed the nicotine improvement of memory acquisition, while flunarizine, verapamil, and bupropion attenuated the improvement of memory consolidation provoked by an acute injection of nicotine (0.035 mg/kg, s.c.). After subchronic administration (14 days, i.p.) of verapamil and amlodipine, two CCAs with the highest affinity for nAChRs, only verapamil (5 mg/kg) impaired memory acquisition and consolidation while both verapamil and amlodipine, at the subthresold, ineffective dose (2.5 mg/kg), significantly reversed the improvement of memory provoked by an acute injection of nicotine (0.035 mg/kg, s.c.). Our findings can be useful to better understand the interaction between cholinergic nicotinic receptors and calcium-related mechanisms in memory-related processes.
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Orzelska J, Talarek S, Listos J, Fidecka S. Effects of NOS inhibitors on the benzodiazepines-induced memory impairment of mice in the modified elevated plus-maze task. Behav Brain Res 2013; 244:100-6. [PMID: 23396146 DOI: 10.1016/j.bbr.2013.01.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 01/23/2013] [Accepted: 01/28/2013] [Indexed: 10/27/2022]
Abstract
The aim of the present study was to examine the effects of nitric oxide synthase (NOS) inhibitors on responses, elicited by benzodiazepines (BZs) in a modified elevated plus-maze task in mice. It was shown that acute doses of diazepam (DZ; 1 and 2 mg/kg) and flunitrazepam (FNZ; 0.05, 0.1 and 0.2 mg/kg) significantly increased the time of transfer latency (TL2) in a retention trial, thus confirming memory impairing effects of BZs. l-NAME (N(G)-nitro-l-arginine methyl ester; 200 mg/kg), a non-selective inhibitor of NOS, and 7-NI (7-nitroindazole; 40 mg/kg), a selective inhibitor of NOS, further intensified DZ-induced memory impairment. On the other hand, L-NAME (50, 100 and 200 mg/kg) and 7-NI (10, 20 and 40 mg/kg) prevented FNZ-induced memory compromising process. The results of this study indicated that suppressed NO synthesis enhanced DZ-induced but prevented FNZ-induced memory impairment. Taken together, these findings could suggest NO involvement in BZs-induced impairment of memory processes. The precise mechanism of these controversial effects, however, remains elusive.
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Affiliation(s)
- Jolanta Orzelska
- Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4A, 20-093, Lublin, Poland.
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Kruk M, Miszkiel J, McCreary AC, Przegaliński E, Filip M, Biała G. Effects of the histamine H3 receptor antagonist ABT-239 on cognition and nicotine-induced memory enhancement in mice. Pharmacol Rep 2012; 64:1316-25. [DOI: 10.1016/s1734-1140(12)70929-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Revised: 08/03/2012] [Indexed: 11/16/2022]
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Kurz C, Ungerer I, Lipka U, Kirr S, Schütt T, Eckert A, Leuner K, Müller WE. The metabolic enhancer piracetam ameliorates the impairment of mitochondrial function and neurite outgrowth induced by beta-amyloid peptide. Br J Pharmacol 2010; 160:246-57. [PMID: 20218980 DOI: 10.1111/j.1476-5381.2010.00656.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND AND PURPOSE beta-Amyloid peptide (Abeta) is implicated in the pathogenesis of Alzheimer's disease by initiating a cascade of events from mitochondrial dysfunction to neuronal death. The metabolic enhancer piracetam has been shown to improve mitochondrial dysfunction following brain aging and experimentally induced oxidative stress. EXPERIMENTAL APPROACH We used cell lines (PC12 and HEK cells) and murine dissociated brain cells. The protective effects of piracetam in vitro and ex vivo on Abeta-induced impairment of mitochondrial function (as mitochondrial membrane potential and ATP production), on secretion of soluble Abeta and on neurite outgrowth in PC12 cells were investigated. KEY RESULTS Piracetam improves mitochondrial function of PC12 cells and acutely dissociated brain cells from young NMRI mice following exposure to extracellular Abeta(1-42). Similar protective effects against Abeta(1-42) were observed in dissociated brain cells from aged NMRI mice, or mice transgenic for mutant human amyloid precursor protein (APP) treated with piracetam for 14 days. Soluble Abeta load was markedly diminished in the brain of those animals after treatment with piracetam. Abeta production by HEK cells stably transfected with mutant human APP was elevated by oxidative stress and this was reduced by piracetam. Impairment of neuritogenesis is an important consequence of Abeta-induced mitochondrial dysfunction and Abeta-induced reduction of neurite growth in PC12 cells was substantially improved by piracetam. CONCLUSION AND IMPLICATIONS Our findings strongly support the concept of improving mitochondrial function as an approach to ameliorate the detrimental effects of Abeta on brain function.
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Affiliation(s)
- C Kurz
- Department of Pharmacology, Biocenter, University Frankfurt/M, Germany
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Biała G, Kruk M. Influence of bupropion and calcium channel antagonists on the nicotine-induced memory-related response of mice in the elevated plus maze in mice. Pharmacol Rep 2009; 61:236-44. [DOI: 10.1016/s1734-1140(09)70027-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2008] [Revised: 02/16/2009] [Indexed: 10/25/2022]
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Hlinák Z, Krejcí I. Oxiracetam pre- but not post-treatment prevented social recognition deficits produced with trimethyltin in rats. Behav Brain Res 2005; 161:213-9. [PMID: 15922047 DOI: 10.1016/j.bbr.2005.02.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2004] [Revised: 02/02/2005] [Accepted: 02/10/2005] [Indexed: 11/26/2022]
Abstract
The social recognition paradigm was used to investigate the effect of trimethyltin (TMT) in adult male rats. Consequently, the effect of chronic oxiracetam (OXI) treatment in TMT impaired animals was evaluated. In all experiments, a behavioural testing was performed 3 weeks after TMT administration. Experiment 1: A single TMT oral dose, 5 and 7.5 but not 2.5mg/kg, impaired the natural ability of the adults to recognize a juvenile conspecific that they encountered 30 min before. The dose of 5mg/kg TMT was chosen to be used in subsequent experiments. Experiment 2: Chronic OXI pre-+post-treatment, daily 3 or 30 mg/kg sc for 7 days before and 7 days after the insult, protected the adults against recognition deficit produced by TMT. Experiment 3: OXI pre- but not post-treatment (always 3 and 30 mg/kg) had beneficial effects on the social recognition. The findings suggest that social recognition ability of adult male rats pre-treated sufficiently long with OXI is resistant to the neurotoxicity effect of TMT.
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Affiliation(s)
- Zdenek Hlinák
- Institute of Physiology, Academy of Sciences of the Czech Republic, Vídenská 1083, 142 20 Prague 4, Czech Republic.
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Da Cunha IC, José RF, Orlandi Pereira L, Pimenta JA, Oliveira de Souza IA, Reiser R, Moreno H, Marino Neto J, Paschoalini MA, Faria MS. The role of nitric oxide in the emotional learning of rats in the plus-maze. Physiol Behav 2005; 84:351-8. [PMID: 15763571 DOI: 10.1016/j.physbeh.2004.12.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2004] [Revised: 12/13/2004] [Accepted: 12/13/2004] [Indexed: 11/22/2022]
Abstract
The present study evaluated the role of nitric oxide (NO) in the transfer latency (TL) paradigm in the elevated plus-maze. Male Wistar rats received i.p. injections of either 0.9% Saline, N(omega) Nitro-L-arginine-methyl-ester (L-NAME, an inhibitor of NO synthesis), d-NAME (inert isomer), scopolamine (SCO, antagonist of muscarinic receptors), or MK-801 (antagonist of NMDA receptors) and, after 30 min, were submitted to TL procedure. In an independent experiment, the ability of the same L-NAME treatments in changing the arterial pressure and blood glucose level (BGL) was evaluated in conscious rats. The treatment with SCO (1 mg kg(-1)), MK-801 (0.15 mg kg(-1)) and L-NAME (10 and 50 mg kg(-1)), but not with D-NAME, impaired the TL learning. The L-NAME-induced TL deficit was counteracted by L-ARG (100 and 200 mg kg(-1)), while the co-administration of sub-effective doses of L-NAME and MK-801 failed to impair the TL learning. The L-NAME (50 mg kg(-1)) treatment failed to alter the BGL. All treatments with L-NAME induced hypertension, but the rats treated with L-NAME (5 mg kg(-1)) were still able to learn the TL task. The data indicate that the TL deficit induced by L-NAME (10 and 50 mg kg(-1)) is not due to either hypertension or changes in the BGL. It is also possible to establish that NO production is important for emotional learning underlying the TL procedure in rats.
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Affiliation(s)
- I C Da Cunha
- Department of Physiological Sciences, Centre of Biological Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88.040-900, Brazil
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