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Bielecka-Papierz G, Serefko A, Szopa A, Talarek S, Wróbel A, Szewczyk B, Radziwoń-Zaleska M, Kołtun-Jasion M, Poleszak E. The role of the L-arginine-NO-cGMP-dependent pathway in the development of sensitization to mephedrone effects on the locomotor activity in mice. Behav Brain Res 2023; 437:114103. [PMID: 36089098 DOI: 10.1016/j.bbr.2022.114103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 09/04/2022] [Accepted: 09/05/2022] [Indexed: 10/14/2022]
Abstract
Mephedrone, a popular psychostimulating substance widely used illegally in recreational purposes, exerts in rodents that regularly and intermittently were exposed to it a sensitized response to the drug. Behavioral sensitization is one of experimental models of drug dependency/abuse liability. In the present study we evaluated a potential involvement of the L-arginine-NO-cGMP pathway in the development of sensitization to the mephedrone-induced hyperlocomotion. Locomotor activity was measured automatically and experiments were performed on male Albino Swiss mice. We demonstrated that a 5-day administration of 7-nitroindazole (10 or 20 mg/kg/day) and L-NAME (50 mg/kg/day) suppressed the development of sensitization to the mephedrone-induced hyperlocomotion. As for L-arginine (125 or 250 mg/kg/day) and methylene blue (5 or 10 mg/kg/day) the obtained outcomes are inconclusive. Furthermore, the lower dose of L-NAME (25 mg/kg/day) surprisingly potentiated the development of sensitization to the mephedrone-induced effects on the spontaneous locomotor activity in mice. In conclusion, our data demonstrated that modulators of the L-arginine-NO-cGMP pathway may differently affect the development of sensitization to the locomotor stimulant effects of mephedrone. Inhibition of neuronal nitric oxide synthase (NOS) seems to prevent this process quite profoundly, non-selective inhibition of NOS may have a dual effect, whereas inhibition of soluble guanylate cyclase may only partially suppress the development of sensitization to the mephedrone-induced effects.
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Affiliation(s)
- Gabriela Bielecka-Papierz
- Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, 1 Chodźki Street, 20-093 Lublin, Poland.
| | - Anna Serefko
- Laboratory of Preclinical Testing, Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, 1 Chodźki Street, 20-093 Lublin, Poland.
| | - Aleksandra Szopa
- Laboratory of Preclinical Testing, Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, 1 Chodźki Street, 20-093 Lublin, Poland
| | - Sylwia Talarek
- Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, 4a Chodźki Street, 20-093 Lublin, Poland
| | - Andrzej Wróbel
- Second Department of Gynecology, Medical University of Lublin, 8 Jaczewskiego Street, 20-090 Lublin, Poland
| | - Bernadeta Szewczyk
- Department of Neurobiology, Polish Academy of Sciences, Maj Institute of Pharmacology, 12 Smętna Street, 31-343 Kraków, Poland
| | - Maria Radziwoń-Zaleska
- Department of Psychiatry, Medical University of Warsaw, 27 Nowowiejska Street, 00-665 Warsaw, Poland
| | - Małgorzata Kołtun-Jasion
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Ewa Poleszak
- Laboratory of Preclinical Testing, Chair and Department of Applied and Social Pharmacy, Medical University of Lublin, 1 Chodźki Street, 20-093 Lublin, Poland.
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Gamma-decanolactone: Preliminary evaluation as potential antiparkinsonian drug. Eur J Pharmacol 2021; 906:174276. [PMID: 34174267 DOI: 10.1016/j.ejphar.2021.174276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 06/16/2021] [Accepted: 06/18/2021] [Indexed: 12/14/2022]
Abstract
Treatment of Parkinson's disease (PD) includes the use of monoamine oxidase-B (MAO-B) inhibitor drugs. In this work we have evaluated the possible gamma-decanolactone (GD) effect in vitro to inhibit the A and B isoforms of human monoamine oxidase (hMAO) enzyme and their citotoxicity in human hepatoma cell line (HepG2). Also, binding studies to A1, A2A A2B and A3 adenosine receptors were performed. A docking study of gamma-decanolactone has been carried out with the molecular targets of MAO-A and MAO-B isoforms. The physicochemical properties and ability to cross physiological barriers, as the blood brain barrier (BBB), was elucidated by computational studies. The in vivo assays, the rota-rod test, body temperature assessment and open field test were performed in reserpinized mice (1.5 mg/kg, i.p.; 18:00 before) to evaluate the effect of gamma-decanolactone (300 mg/kg), alone or associated with Levodopa plus Benserazide (LD + BZ, 100:25 mg/kg, i.p.). Gamma-decanolactone inhibited preferentially the MAO-B in a reversible manner, with an inhibitory concentration of 50% (IC50) 55.95 ± 9.06 μM. It was shown to be a safe drug since only at the highest concentration decreased the viability of HepG2 cells. It also does not bind to adenosine receptors investigated in this study. The molecular docking study show that the gamma-decanolactone ligand adopts a relatively compact conformation in the active site of hMAO-B, while we note an extended conformation of gamma-decanolactone ligand in the hMAO-A isoform. The physicochemical properties obtained, and the theoretical models utilized for the evaluation of ability to cross the BBB, predict a good gamma-decanolactone bioavailability and access to the central nervous system (CNS). In the in vivo studies, gamma-decanolactone partially reversed the ataxia of the reserpinized mice at 01:00 h and 01:30 h post-administration. Concomitant treatment of gamma-decanolactone with LD + BZ, at 01:30 h showed a potentiation of the reversibility of ataxia and facilitated the reversal of hypothermia caused by reserpine for all measured times (P <0.01 vs vehicle), except at 24:00 h, but not reversed the hypokinesia in the open field test. In summary, the results herein obtained and in conjunction with previous studies, suggest that gamma-decanolactone could be a drug with potential utility as antiparkinsonian drug.
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Abd Rashed A, Abd Rahman AZ, Rathi DNG. Essential Oils as a Potential Neuroprotective Remedy for Age-Related Neurodegenerative Diseases: A Review. Molecules 2021; 26:1107. [PMID: 33669787 PMCID: PMC7922935 DOI: 10.3390/molecules26041107] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 12/13/2022] Open
Abstract
Despite the improvements in life expectancy, neurodegenerative conditions have arguably become the most dreaded maladies of older people. The neuroprotective and anti-ageing potentials of essential oils (EOs) are widely evaluated around the globe. The objective of this review is to analyse the effectiveness of EOs as neuroprotective remedies among the four common age-related neurodegenerative diseases. The literature was extracted from three databases (PubMed, Web of Science and Google Scholar) between the years of 2010 to 2020 using the medical subject heading (MeSH) terms "essential oil", crossed with "Alzheimer's disease (AD)", "Huntington's disease (HD)", "Parkinson's disease (PD)" or "amyotrophic lateral sclerosis (ALS)". Eighty three percent (83%) of the studies were focused on AD, while another 12% focused on PD. No classifiable study was recorded on HD or ALS. EO from Salvia officinalis has been recorded as one of the most effective acetylcholinesterase and butyrylcholinesterase inhibitors. However, only Cinnamomum sp. has been assessed for its effectiveness in both AD and PD. Our review provided useful evidence on EOs as potential neuroprotective remedies for age-related neurodegenerative diseases.
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Affiliation(s)
- Aswir Abd Rashed
- Nutrition, Metabolism and Cardiovascular Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, No.1, Jalan Setia Murni U13/52, Seksyen U13 Setia Alam, Shah Alam 40170, Malaysia;
| | - Ahmad Zuhairi Abd Rahman
- Cancer Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, No.1, Jalan Setia Murni U13/52, Seksyen U13 Setia Alam, Shah Alam 40170, Malaysia;
| | - Devi Nair Gunasegavan Rathi
- Nutrition, Metabolism and Cardiovascular Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, No.1, Jalan Setia Murni U13/52, Seksyen U13 Setia Alam, Shah Alam 40170, Malaysia;
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Chaves PFP, Hocayen PDAS, Dallazen JL, de Paula Werner MF, Iacomini M, Andreatini R, Cordeiro LMC. Chamomile tea: Source of a glucuronoxylan with antinociceptive, sedative and anxiolytic-like effects. Int J Biol Macromol 2020; 164:1675-1682. [PMID: 32795578 DOI: 10.1016/j.ijbiomac.2020.08.039] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/24/2020] [Accepted: 08/04/2020] [Indexed: 12/30/2022]
Abstract
Chamomile is one of the most ancient medicinal herbs known to mankind and among its traditional uses are the calming effects. However, few studies explored its effects on the central nervous system (CNS). In this study we further proceed with structural elucidation of polysaccharides from chamomile tea. A highly substituted 4-O-methyl-glucuronoxylan (fraction SN-50R) was purified and chemically characterized, presenting Xyl:GlcA ratio of 1.7:1, Mw of 500 kDa and total sugar content of 98%. Its bioactivity on pain and on CNS was explored. Animals treated with SN-50R presented antinociceptive effect and a dose-dependent decrease in the number of crossings in the activity chamber and in the open field test, as well as a significant reduction in the number of marbles buried when compared to control. These results suggest that SN-50R presented sedative and anxiolytic-like effects and may be contributing for the calming effects obtained by chamomile tea ingestion.
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Affiliation(s)
| | | | - Jorge Luiz Dallazen
- Department of Pharmacology, Federal University of Paraná, Curitiba, Paraná, Brazil
| | | | - Marcello Iacomini
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, Paraná, Brazil
| | - Roberto Andreatini
- Department of Pharmacology, Federal University of Paraná, Curitiba, Paraná, Brazil
| | - Lucimara M C Cordeiro
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, Paraná, Brazil.
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Quintans-Júnior LJ, Gandhi SR, Passos FRS, Heimfarth L, Pereira EWM, Monteiro BS, Dos Santos KS, Duarte MC, Abreu LS, Nascimento YM, Tavares JF, Silva MS, Menezes IRA, Coutinho HDM, Lima ÁAN, Zengin G, Quintans JSS. Dereplication and quantification of the ethanol extract of Miconia albicans (Melastomaceae) by HPLC-DAD-ESI-/MS/MS, and assessment of its anti-hyperalgesic and anti-inflammatory profiles in a mice arthritis-like model: Evidence for involvement of TNF-α, IL-1β and IL-6. JOURNAL OF ETHNOPHARMACOLOGY 2020; 258:112938. [PMID: 32387232 DOI: 10.1016/j.jep.2020.112938] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Miconia albicans (Sw) Triana (Melastomataceae), a medicinal plant widely used by practitioners of folk medicine in the northeast of Brazil, has been used to treat chronic inflammatory disorders, such as rheumatoid arthritis (RA) and other joint conditions. Oddly, there is little research on the species. AIM OF THE STUDY We aimed to evaluate the anti-arthritic and anti-inflammatory profile of the ethanolic leaf extract of M. albicans (EEMA), as well as to perform dereplication and quantification by HPLC-DAD-ESI-/MS/MS. MATERIALS AND METHODS The compounds present in the extracts were identified by HPLC-DAD-ESI-MS/MS. The possible anti-inflammatory effect of EEMA (50 and 100 mg/kg, p.o) was evaluated using the pleurisy model induced by carrageenan and its action on IL-1β and TNF-α levels was also evaluated. The RA model was induced through the intra-articular injection of complete Freund's adjuvant (CFA). RESULTS HPLC-DAD-ESI-MS/MS analysis identified 23 compounds, with glycoside flavonoids mainly derived from quercetin, and rutin being the main compounds. EEMA significantly reduced (p < 0.001) leukocyte migration in the pleurisy model and reduced TNF-α and IL-1β levels in pleural lavage (p < 0.001). In the CFA animal model, EEMA significantly reduced the nociceptive and hyperalgesic behaviors demonstrated by the rearing test (p < 0.01 or p < 0.05) and decreased mechanical hyperalgesia (p < 0.001). EEMA produced a significant improvement in mobility in the open-field test (only at the higher dose, p < 0.05). EEMA significantly (p < 0.01) increased hindpaw grip strength. The diameter of CFA-induced ipsilateral knee edema was significantly reduced (p < 0.001) by EEMA, which was related to reduced levels of IL-6 and TNF-α in the joint knee (p < 0.01). No indication of hepatic injury after chronic treatment was found. CONCLUSION Taken together, these results contribute to the chemical and pharmacological knowledge of M. albicans and demonstrated that this medicinal plant appears to be able to mitigate deleterious symptoms of RA, which supports its use in folk medicine.
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Affiliation(s)
- Lucindo J Quintans-Júnior
- Multiuser Health Center Facility (CMulti-Saúde), Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil; Laboratory of Neuroscience and Pharmacological Assays (LANEF), Depatment of Pharmacy, Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil.
| | - Sathiyabama R Gandhi
- Multiuser Health Center Facility (CMulti-Saúde), Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil; Laboratory of Neuroscience and Pharmacological Assays (LANEF), Depatment of Pharmacy, Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil
| | - Fabiolla R Santos Passos
- Multiuser Health Center Facility (CMulti-Saúde), Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil; Laboratory of Neuroscience and Pharmacological Assays (LANEF), Depatment of Pharmacy, Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil
| | - Luana Heimfarth
- Multiuser Health Center Facility (CMulti-Saúde), Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil; Laboratory of Neuroscience and Pharmacological Assays (LANEF), Depatment of Pharmacy, Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil
| | - Erik W Menezes Pereira
- Multiuser Health Center Facility (CMulti-Saúde), Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil; Laboratory of Neuroscience and Pharmacological Assays (LANEF), Depatment of Pharmacy, Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil
| | - Brenda S Monteiro
- Multiuser Health Center Facility (CMulti-Saúde), Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil; Laboratory of Neuroscience and Pharmacological Assays (LANEF), Depatment of Pharmacy, Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil
| | - Katielen Silvana Dos Santos
- Multiuser Health Center Facility (CMulti-Saúde), Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil; Laboratory of Neuroscience and Pharmacological Assays (LANEF), Depatment of Pharmacy, Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil
| | | | - Lucas Silva Abreu
- Nucleus for Characterization and Analysis, Department of Pharmaceutical Sciences, Health Science Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
| | - Yuri M Nascimento
- Nucleus for Characterization and Analysis, Department of Pharmaceutical Sciences, Health Science Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
| | - Josean F Tavares
- Nucleus for Characterization and Analysis, Department of Pharmaceutical Sciences, Health Science Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
| | - Marcelo S Silva
- Nucleus for Characterization and Analysis, Department of Pharmaceutical Sciences, Health Science Center, Federal University of Paraíba (UFPB), João Pessoa, Brazil
| | - Irwin R A Menezes
- Graduate Program of Biological Chemistry, Regional University of Cariri (URCA), Crato, Ceará, Brazil
| | - Henrique D M Coutinho
- Graduate Program of Biological Chemistry, Regional University of Cariri (URCA), Crato, Ceará, Brazil
| | - Ádley A N Lima
- Department of Pharmacy, Health Sciences Center, Universidade Federal Do Rio Grande Do Norte (UFRN), Rio Grande Do Norte (RN), Natal, 59012-570, Brazil
| | - Gokhan Zengin
- Science Faculty, Department of Biology, Selcuk University, Konya, Turkey
| | - Jullyana S S Quintans
- Multiuser Health Center Facility (CMulti-Saúde), Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil; Laboratory of Neuroscience and Pharmacological Assays (LANEF), Depatment of Pharmacy, Federal University of Sergipe, São Cristóvão-SE, CEP 49.100-000, Brazil.
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Rahman MM, Chakraborti RR, Potol MA, Abir AH, Sharmin O, Alam M, Khan MFR, Afrin R, Jannat H, Wadud R, Habib ZF. Epalrestat improves motor symptoms by reducing oxidative stress and inflammation in the reserpine induced mouse model of Parkinson's disease. Animal Model Exp Med 2020; 3:9-21. [PMID: 32318655 PMCID: PMC7167235 DOI: 10.1002/ame2.12097] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 11/12/2019] [Accepted: 12/06/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Parkinson's disease (PD) is a progressive neurodegenerative disorder affecting a large number of elderly people worldwide. The current therapies for PD are symptom-based; they do not provide a cure but improve the quality of life. Muscular dysfunction is the hallmark clinical feature of PD and oxidative stress and inflammation play a critical role in its pathogenesis. Epalrestat is used for the treatment of diabetic neuropathy and is known to improve antioxidative defense mechanisms in the CNS. Therefore, in this study, we investigated the role of Epalrestat in the reserpine induced mouse model of PD. METHOD We used Swiss Albino mice for the PD model and tested for akinesia/bradykinesia, muscular rigidity, palpebral ptosis, and tremor, as well as conducting swim and open field tests. Brain samples were used to determine oxidative stress parameters and infiltration of immune cells. RESULTS Epalrestat treatment significantly improved akinesia and bradykinesia, muscular dysfunctions, tremor level, and gait functions compared to the reserpine group. It also improved the latency in the swim test. Eplarestat significantly reduced lipid peroxidation and NO concentration in different brain tissues and increased the activity of antioxidative enzymes, glutathione, catalase, and superoxide dismutase. Furthermore, Epalrestat reduced neuroinflammation by reducing the number of infiltrating immune cells. CONCLUSION Eplarestat improves muscular dysfunction in PD by reducing oxidative stress and inflammation.
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Affiliation(s)
- Md. Mahbubur Rahman
- Laboratory of PharmacologyDepartment of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South UniversityDhakaBangladesh
| | - Rupali Rani Chakraborti
- Laboratory of PharmacologyDepartment of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South UniversityDhakaBangladesh
| | - Md. Abdullah Potol
- Laboratory of PharmacologyDepartment of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South UniversityDhakaBangladesh
| | - Ariful Haque Abir
- Laboratory of PharmacologyDepartment of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South UniversityDhakaBangladesh
| | - Ozayra Sharmin
- Laboratory of PharmacologyDepartment of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South UniversityDhakaBangladesh
| | - Mahabub Alam
- Laboratory of PharmacologyDepartment of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South UniversityDhakaBangladesh
| | - Md. Fazlur Rahman Khan
- Laboratory of PharmacologyDepartment of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South UniversityDhakaBangladesh
| | - Rownock Afrin
- Laboratory of PharmacologyDepartment of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South UniversityDhakaBangladesh
| | - Humayra Jannat
- Laboratory of PharmacologyDepartment of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South UniversityDhakaBangladesh
| | - Rasiqh Wadud
- Laboratory of PharmacologyDepartment of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South UniversityDhakaBangladesh
| | - Zaki Farhad Habib
- Laboratory of PharmacologyDepartment of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South UniversityDhakaBangladesh
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Olaya MDP, Vergel NE, López JL, Viña D, Guerrero MF. 8-Propyl-6H-[1,3]dioxolo[4,5-g]chromen-6-one: A new coumarin with monoamine oxidase B inhibitory activity and possible anti-parkinsonian effects. BRAZ J PHARM SCI 2020. [DOI: 10.1590/s2175-97902019000317609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Coumarin analogue 3-methyl-7H-furo[3,2-g] chromen-7-one as a possible antiparkinsonian agent. ACTA ACUST UNITED AC 2019; 39:491-501. [PMID: 31584763 PMCID: PMC7357371 DOI: 10.7705/biomedica.4299] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Indexed: 11/30/2022]
Abstract
Introduction: Parkinson’s disease is the second most common neurodegenerative disease. Monoamine oxidase B inhibitors are used in the treatment of this disease concomitantly with levodopa or as monotherapy. Several substituted coumarins have shown activity as inhibitors of monoamine oxidase B. Objective: To evaluate the possible antiparkinsonian effects of the coumarin analogue FCS005 (3-methyl-7H-furo[3,2-g]chromen-7-one) in mouse models, as well as its inhibitory activity towards monoamine oxidases (MAO) and its antioxidant activity. Materials and methods: FCS005 was synthesized and the reversal of hypokinesia was evaluated in the reserpine and levodopa models. Moreover, in the haloperidol model, its anticataleptic effects were evaluated. Additionally, the monoamine oxidase inhibitory activity and antioxidant activity of FCS005 were evaluated using in vitro and ex vivo studies, respectively. Results: FCS005 (100 mg/kg) caused the reversal of hypokinesia in the reserpine and levodopa models. This furocoumarin also presented anti-cataleptic effects at the same dose. Besides, it showed selective inhibitory activity towards the MAO-B isoform and antioxidant activity. Conclusion: These results attribute interesting properties to the compound FCS005. It is important to continue research on this molecule considering that it could be a potential antiparkinsonian agent.
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Evaluation the Effects of Foeniculum vulgare Essence on Behavioral-Motor Disorders of Parkinson’s Disease induced by Reserpine in Ovariectomized and Non Ovariectomized Rats. Jundishapur J Nat Pharm Prod 2018. [DOI: 10.5812/jjnpp.67391] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Passiflora cincinnata Extract Delays the Development of Motor Signs and Prevents Dopaminergic Loss in a Mice Model of Parkinson's Disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:8429290. [PMID: 28835767 PMCID: PMC5556616 DOI: 10.1155/2017/8429290] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 06/20/2017] [Indexed: 02/02/2023]
Abstract
Passiflora cincinnata Masters is a Brazilian native species of passionflower. This genus is known in the American continent folk medicine for its diuretic and analgesic properties. Nevertheless, few studies investigated possible biological effects of P. cincinnata extracts. Further, evidence of antioxidant actions encourages the investigation of possible neuroprotective effects in animal models of neurodegenerative diseases. This study investigates the effect of the P. cincinnata ethanolic extract (PAS) on mice submitted to a progressive model of Parkinson's disease (PD) induced by reserpine. Male (6-month-old) mice received reserpine (0.1 mg/kg, s.c.), every other day, for 40 days, with or without a concomitant treatment with daily injections of PAS (25 mg/kg, i.p.). Catalepsy, open field, oral movements, and plus-maze discriminative avoidance evaluations were performed across treatment, and immunohistochemistry for tyrosine hydroxylase was conducted at the end. The results showed that PAS treatment delayed the onset of motor impairments and prevented the occurrence of increased catalepsy behavior in the premotor phase. However, PAS administration did not modify reserpine-induced cognitive impairments. Moreover, PAS prevented the decrease in tyrosine hydroxylase immunostaining in the substantia nigra pars compacta (SNpc) induced by reserpine. Taken together, our results suggested that PAS exerted a neuroprotective effect in a progressive model of PD.
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Robledo-González LE, Martínez-Martínez A, Vargas-Muñoz VM, Acosta-González RI, Plancarte-Sánchez R, Anaya-Reyes M, Fernández Del Valle-Laisequilla C, Reyes-García JG, Jiménez-Andrade JM. Repeated administration of mazindol reduces spontaneous pain-related behaviors without modifying bone density and microarchitecture in a mouse model of complete Freund's adjuvant-induced knee arthritis. J Pain Res 2017; 10:1777-1786. [PMID: 28794657 PMCID: PMC5538698 DOI: 10.2147/jpr.s136581] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background The role of dopaminergic system in the development of rheumatoid arthritis-related pain, a major symptom in this disease, has not been explored. Therefore, the anti-nociceptive effect of mazindol, a dopamine uptake inhibitor, was evaluated in a model of complete Freund’s adjuvant (CFA)-induced arthritis. Furthermore, as studies have shown that the dopaminergic system regulates bone metabolism, the effect of mazindol on bone mass and microarchitecture was determined. Methods Adult ICR male mice received intra-articular injections of either CFA or saline into the right knee joint every week. Spontaneous pain-like behaviors (flinching and guarding) and locomotor activity were assessed at day 26 post-first CFA, following which, a single intraperitoneally (i.p.) administered dose of mazindol was given (1, 3 and 10 mg/kg). Then, the antinociceptive effect of a repeated administration of 3 mg/kg mazindol (daily, i.p.; day 15–day 26) was evaluated. Additionally, at day 26, the participation of D1-like, D2-like or opioid receptors in the antinociceptive effect of mazindol was evaluated. The effect of mazindol on bone density and microarchitecture was evaluated by micro-computed tomography. Results Acute administration of mazindol decreased the spontaneous pain-like behaviors in a dose-dependent manner without reducing the knee edema. However, mazindol at 10 mg/kg significantly increased the locomotor activity; therefore, 3 mg/kg mazindol was used for further studies. Repeated administration of 3 mg/kg mazindol significantly decreased the pain-like behaviors without modifying locomotor activity. The antinociceptive effect of mazindol was blocked by administration of a D2-like receptor antagonist (haloperidol), but not by administration of D1-like receptor antagonist (SCH 23390) or an opioid receptor antagonist (naloxone). Repeated administration of mazindol did not significantly modify the density and microarchitecture of periarticular bone of the arthritic and nonarthritic knee joints. Conclusion Results suggest that mazindol via D2-like receptors has an antinociceptive role in mice with CFA-induced knee arthritis without modifying the bone health negatively.
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Affiliation(s)
| | | | | | - R I Acosta-González
- Departamento de Análisis Clínicos, Unidad Académica Multidisciplinaria Reynosa-Aztlán, UAT, Reynosa, Tamaulipas, Mexico
| | - R Plancarte-Sánchez
- Departamento de Anestesiología, Terapia Intensiva y Clínica del Dolor, Instituto Nacional de Cancerología, Mexico City, Mexico
| | | | | | - J G Reyes-García
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City, Mexico
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de Freitas CM, Busanello A, Schaffer LF, Peroza LR, Krum BN, Leal CQ, Ceretta APC, da Rocha JBT, Fachinetto R. Behavioral and neurochemical effects induced by reserpine in mice. Psychopharmacology (Berl) 2016; 233:457-67. [PMID: 26514557 DOI: 10.1007/s00213-015-4118-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 10/15/2015] [Indexed: 01/11/2023]
Abstract
RATIONALE Reserpine, a monoamine-depleting agent, which irreversibly and non-selectively blocks the vesicular monoamine transporter, has been used as an animal model to study several neurological disorders, including tardive dyskinesia and Parkinson's disease. OBJECTIVE The purpose of this study was to examine if motor deficits induced by reserpine in mice could be related to alterations in the expression of dopaminergic system proteins such as tyrosine hydroxylase (TH) and dopamine transporter (DAT) and in the activity of monoamine oxidase (MAO). METHODS Mice received either vehicle or reserpine (0.1, 0.5, or 1 mg/kg, s.c.) for four consecutive days. Two, 20, or 60 days after reserpine withdrawal, behavioral, and neurochemical changes were evaluated. RESULTS Reserpine at a dose of 0.5 and 1 mg/kg increased vacuous chewing movements (VCMs) and reduced locomotion. Behavioral changes were accompanied by reduction in TH immunoreactivity in the striatum evaluated on days 2 and 20 after the last injection of 1 mg/kg reserpine. Furthermore, negative correlations were found between VCM and MAO-A or MAO-B on day 2 and TH striatal immunoreactivity on day 20 after the last injection of 1 mg/kg reserpine. A positive correlation was observed between VCMs and DAT immunoreactivity in the substantia nigra on day 2 after the last injection of 0.5 mg/kg reserpine. CONCLUSIONS These findings suggest that the pharmacological blockage of vesicular monoamine transporter (VMAT) by reserpine caused neurochemical and behavioral alterations in mice.
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Affiliation(s)
- Catiuscia Molz de Freitas
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Alcindo Busanello
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Larissa Finger Schaffer
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Luis Ricardo Peroza
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Bárbara Nunes Krum
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | | | | | - João Batista Teixeira da Rocha
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Roselei Fachinetto
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil. .,Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil. .,Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, 97105-900, Santa Maria, RS, Brazil.
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Kandratavicius L, Balista PA, Wolf DC, Abrao J, Evora PR, Rodrigues AJ, Chaves C, Maia-de-Oliveira JP, Leite JP, Dursun SM, Baker GB, Guimaraes FS, Hallak JEC. Effects of nitric oxide-related compounds in the acute ketamine animal model of schizophrenia. BMC Neurosci 2015; 16:9. [PMID: 25887360 PMCID: PMC4354998 DOI: 10.1186/s12868-015-0149-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 02/25/2015] [Indexed: 01/22/2023] Open
Abstract
Background Better treatments for schizophrenia are urgently needed. The therapeutic use of the nitric oxide (NO)-donor sodium nitroprusside (SNP) in patients with schizophrenia has shown promising results. The role of NO in schizophrenia is still unclear, and NO modulation is unexplored in ketamine (KET) animal models to date. In the present study, we compared the behavioral effects of pre- and post-treatment with SNP, glyceryl trinitrate (GTN), and methylene blue (MB) in the acute KET animal model of schizophrenia. The present study was designed to test whether acute SNP, GTN, and MB treatment taken after (therapeutic effect) or before (preventive effect) a single KET injection would influence the behavior of rats in the sucrose preference test, object recognition task and open field. Results The results showed that KET induced cognitive deficits and hyperlocomotion. Long- term memory improvement was seen with the therapeutic GTN and SNP treatment, but not with the preventive one. MB pretreatment resulted in long-term memory recovery. GTN pre-, but not post-treatment, tended to increase vertical and horizontal activity in the KET model. Therapeutic and preventive SNP treatment consistently decreased KET-induced hyperlocomotion. Conclusion NO donors – especially SNP – are promising new pharmacological candidates in the treatment of schizophrenia. In addition, we showed that the potential impact of NO-related compounds on KET-induced behavioral changes may depend on the temporal window of drug administration.
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Affiliation(s)
- Ludmyla Kandratavicius
- Department of Neurosciences and Behavior, Ribeirao Preto School of Medicine, University of Sao Paulo, Av Bandeirantes 3900, CEP 14049-900, Ribeirao Preto, Brazil. .,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), USP, Ribeirao Preto, Brazil.
| | - Priscila Alves Balista
- Department of Neurosciences and Behavior, Ribeirao Preto School of Medicine, University of Sao Paulo, Av Bandeirantes 3900, CEP 14049-900, Ribeirao Preto, Brazil.
| | - Daniele Cristina Wolf
- Department of Neurosciences and Behavior, Ribeirao Preto School of Medicine, University of Sao Paulo, Av Bandeirantes 3900, CEP 14049-900, Ribeirao Preto, Brazil.
| | - Joao Abrao
- Department of Biomechanics, Ribeirao Preto School of Medicine, Medicine and Rehabilitation, USP, Ribeirao Preto, Brazil.
| | - Paulo Roberto Evora
- Department of Surgery and Anatomy, Ribeirao Preto School of Medicine, USP, Ribeirao Preto, Brazil.
| | - Alfredo Jose Rodrigues
- Department of Surgery and Anatomy, Ribeirao Preto School of Medicine, USP, Ribeirao Preto, Brazil.
| | - Cristiano Chaves
- Department of Neurosciences and Behavior, Ribeirao Preto School of Medicine, University of Sao Paulo, Av Bandeirantes 3900, CEP 14049-900, Ribeirao Preto, Brazil.
| | | | - Joao Pereira Leite
- Department of Neurosciences and Behavior, Ribeirao Preto School of Medicine, University of Sao Paulo, Av Bandeirantes 3900, CEP 14049-900, Ribeirao Preto, Brazil. .,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), USP, Ribeirao Preto, Brazil.
| | - Serdar Murat Dursun
- Department of Psychiatry (NRU), University of Alberta, Edmonton, Alberta, Canada.
| | - Glen Bryan Baker
- Department of Psychiatry (NRU), University of Alberta, Edmonton, Alberta, Canada.
| | | | - Jaime Eduardo Cecilio Hallak
- Department of Neurosciences and Behavior, Ribeirao Preto School of Medicine, University of Sao Paulo, Av Bandeirantes 3900, CEP 14049-900, Ribeirao Preto, Brazil. .,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), USP, Ribeirao Preto, Brazil. .,National Institute of Science and Technology in Translational Medicine (INCT-TM - CNPq), Ribeirao Preto, Brazil.
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Ahmed RF, Abdel-Rahman RF, Farid OA, El-Marasy SA, Hessin AF. Combined hepatoprotective and antidepressant effects of resveratrol in an acute model of depression. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.bfopcu.2014.06.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Morado-Urbina CE, Alvarado-Vázquez PA, Montiel-Ruiz RM, Acosta-González RI, Castañeda-Corral G, Jiménez-Andrade JM. Early, Middle, or Late Administration of Zoledronate Alleviates Spontaneous Nociceptive Behavior and Restores Functional Outcomes in a Mouse Model of CFA-Induced Arthritis. Drug Dev Res 2014; 75:438-48. [DOI: 10.1002/ddr.21183] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 06/06/2014] [Indexed: 12/11/2022]
Affiliation(s)
- Carlos Eduardo Morado-Urbina
- Unidad Académica Multidisciplinaria Reynosa Aztlán; Universidad Autónoma de Tamaulipas; Reynosa Tamaulipas México
| | | | - Rosa Mariana Montiel-Ruiz
- Unidad Académica Multidisciplinaria Reynosa Aztlán; Universidad Autónoma de Tamaulipas; Reynosa Tamaulipas México
| | - Rosa Issel Acosta-González
- Unidad Académica Multidisciplinaria Reynosa Aztlán; Universidad Autónoma de Tamaulipas; Reynosa Tamaulipas México
| | | | - Juan Miguel Jiménez-Andrade
- Unidad Académica Multidisciplinaria Reynosa Aztlán; Universidad Autónoma de Tamaulipas; Reynosa Tamaulipas México
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Torres-Guzman AM, Morado-Urbina CE, Alvarado-Vazquez PA, Acosta-Gonzalez RI, Chávez-Piña AE, Montiel-Ruiz RM, Jimenez-Andrade JM. Chronic oral or intraarticular administration of docosahexaenoic acid reduces nociception and knee edema and improves functional outcomes in a mouse model of Complete Freund's Adjuvant-induced knee arthritis. Arthritis Res Ther 2014; 16:R64. [PMID: 24612981 PMCID: PMC4060174 DOI: 10.1186/ar4502] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 02/20/2014] [Indexed: 12/20/2022] Open
Abstract
Introduction Clinical and preclinical studies have shown that supplementation with ω-3 polyunsaturated fatty acids (ω-3 PUFAs) reduce joint destruction and inflammation present in rheumatoid arthritis (RA). However, the effects of individual ω-3 PUFAs on chronic arthritic pain have not been evaluated to date. Thus, our aim in this study was to examine whether purified docosahexaenoic acid (DHA, an ω-3 PUFA) reduces spontaneous pain-related behavior and knee edema and improves functional outcomes in a mouse model of knee arthritis. Methods Unilateral arthritis was induced by multiple injections of Complete Freund’s Adjuvant (CFA) into the right knee joints of male ICR adult mice. Mice that received CFA injections were then chronically treated from day 15 until day 25 post–initial CFA injection with oral DHA (10, 30 and 100 mg/kg daily) or intraarticular DHA (25 and 50 μg/joint twice weekly). Spontaneous flinching of the injected extremity (considered as spontaneous pain-related behavior), vertical rearing and horizontal exploratory activity (considered as functional outcomes) and knee edema were assessed. To determine whether an endogenous opioid mechanism was involved in the therapeutic effect of DHA, naloxone (NLX, an opioid receptor antagonist, 3 mg/kg subcutaneously) was administered in arthritic mice chronically treated with DHA (30 mg/kg by mouth) at day 25 post–CFA injection. Results The intraarticular CFA injections resulted in increasing spontaneous flinching and knee edema of the ipsilateral extremity as well as worsening functional outcomes as time progressed. Chronic administration of DHA, given either orally or intraarticularly, significantly improved horizontal exploratory activity and reduced flinching behavior and knee edema in a dose-dependent manner. Administration of NLX did not reverse the antinociceptive effect of DHA. Conclusions To the best of our knowledge, this report is the first to demonstrate DHA’s antinociceptive and anti-inflammatory effects as individual ω-3 PUFAs following sustained systemic and intraarticular administration in a mouse model of CFA-induced knee arthritis. The results suggest that DHA treatment may offer a new therapeutic approach to alleviate inflammation as well as a beneficial effect on pain-related functional disabilities in RA patients.
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Does Restraining Nitric Oxide Biosynthesis Rescue from Toxins-Induced Parkinsonism and Sporadic Parkinson's Disease? Mol Neurobiol 2013; 49:262-75. [DOI: 10.1007/s12035-013-8517-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 07/16/2013] [Indexed: 12/21/2022]
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Fernandes VS, Santos JR, Leão AH, Medeiros AM, Melo TG, Izídio GS, Cabral A, Ribeiro RA, Abílio VC, Ribeiro AM, Silva RH. Repeated treatment with a low dose of reserpine as a progressive model of Parkinson's disease. Behav Brain Res 2012; 231:154-63. [DOI: 10.1016/j.bbr.2012.03.008] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 03/06/2012] [Accepted: 03/07/2012] [Indexed: 11/26/2022]
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Greenbaum L, Lifschytz T, Zozulinsky P, Broner EC, Slonimsky A, Kohn Y, Lerer B. Alteration in RGS2 expression level is associated with changes in haloperidol induced extrapyramidal features in a mutant mouse model. Eur Neuropsychopharmacol 2012; 22:379-86. [PMID: 21982117 DOI: 10.1016/j.euroneuro.2011.09.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 08/10/2011] [Accepted: 09/10/2011] [Indexed: 11/30/2022]
Abstract
Antipsychotic induced Parkinsonism (AIP) is a common adverse effect of antipsychotic drug treatment among schizophrenia patients. Two previous studies showed association of the rs4606 SNP in the 3' untranslated region of the regulator of G protein signaling 2 gene (RGS2) with susceptibility to AIP. Since rs4606 reportedly influences expression of RGS2, we applied a translational approach and studied the effect of chronic (24 days) exposure to haloperidol on AIP-like features in mice carrying a mutation that causes lower Rgs2 gene expression. Haloperidol and vehicle treated male mice heterozygous (HET) or homozygous (HOM) for the mutation, or wild type (WT), were evaluated for open field locomotion, catalepsy duration, pole test performance and rota-rod latency to fall. We showed that in haloperidol treated mice lower Rgs2 expression is associated with better performance on the open field, catalepsy and rota-rod tests but not the pole test. Results were most consistent for the 0.2 mg/kg/d haloperidol dose. These observations support the possible involvement of RGS2 in mechanisms underlying susceptibility to AIP.
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Affiliation(s)
- Lior Greenbaum
- Biological Psychiatry Laboratory, Department of Psychiatry, Hadassah – Hebrew University Medical Center, Jerusalem, Israel
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Rodrigues MRA, Kanazawa LKS, das Neves TLM, da Silva CF, Horst H, Pizzolatti MG, Santos ARS, Baggio CH, Werner MFDP. Antinociceptive and anti-inflammatory potential of extract and isolated compounds from the leaves of Salvia officinalis in mice. JOURNAL OF ETHNOPHARMACOLOGY 2012; 139:519-26. [PMID: 22154965 DOI: 10.1016/j.jep.2011.11.042] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Revised: 11/22/2011] [Accepted: 11/23/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Salvia officinalis L. has been used as a traditional herbal medicine for gastric disturbances and inflammatory processes. This study investigated the toxicological, antinociceptive and anti-inflammatory effects of the hydroalcoholic extract (HE) from leaves of Salvia officinalis and its isolated compounds in mice. MATERIALS AND METHODS Mice were treated with HE before the induction of nociceptive response by chemical agents (acetic-acid, formalin, glutamate, capsaicin and cinnamaldehyde). Total leukocytes and plasma extravasation induced by acetic acid and paw oedema induced by glutamate, capsaicin and cinnamaldehyde were also measured. The antinociceptive effect of carnosol and ursolic acid/oleanolic acid were evaluated on formalin and cinnamaldehyde models. RESULTS In the acute toxicity test the value of estimated LD50 for HE was 44.7579 g/kg. Oral administration of HE (10, 30 and 100 mg/kg) inhibited the number of writhings, total leukocytes and plasma extravasation induced by acetic acid. In the formalin test, HE reduced both neurogenic and inflammatory phases, effect that was affected by naloxone. The glutamate-, capsaicin- and cinnamaldehyde-induced nociception and paw oedema were reduced by HE at doses that did not affect the locomotor activity of mice in the open field test. Carnosol (10mg/kg) and ursolic acid/oleanolic acid (30 mg/kg) inhibited the inflammatory phase of formalin and the nociception and mechanical allodynia induced by cinnamaldehyde. CONCLUSIONS These results demonstrate that HE presents significant anti-inflammatory and also antinociceptive effects on chemical behavioral models of nociception that involves an opioid mechanism. In addition, carnosol and ursolic acid/oleanolic acid contained in this plant appears to contribute for the antinociceptive property of the extract, possibly through a modulatory influence on TRPA1-receptors. However, further studies regarding the precise site and the mechanism of action of HE and carnosol and ursolic acid/oleanolic acid merited exploring further.
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Santos C, Andersen M, Lima M, Tufik S. Gentle handling temporarily increases c-Fos in the substantia nigra pars compacta. Braz J Med Biol Res 2008; 41:920-5. [DOI: 10.1590/s0100-879x2008005000044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2007] [Accepted: 09/30/2008] [Indexed: 11/21/2022] Open
Affiliation(s)
| | | | | | - S. Tufik
- Universidade Federal de São Paulo, Brasil
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