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Bariotto-Dos-Santos K, Padovan-Neto FE, Bortolanza M, Dos-Santos-Pereira M, Raisman-Vozari R, Tumas V, Del Bel E. Repurposing an established drug: an emerging role for methylene blue in L-DOPA-induced dyskinesia. Eur J Neurosci 2018; 49:869-882. [PMID: 30022547 DOI: 10.1111/ejn.14079] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 07/02/2018] [Accepted: 07/09/2018] [Indexed: 12/21/2022]
Abstract
The nitric oxide (NO) system has been proven to be a valuable modulator of L-DOPA-induced dyskinesia in Parkinsonian rodents. NO activates the enzyme soluble guanylyl cyclase and elicits the synthesis of the second-messenger cGMP. Although we have previously described the anti-dyskinetic potential of NO synthase inhibitors on L-DOPA-induced dyskinesia, the effect of soluble guanylyl cyclase inhibitors remains to be evaluated. The aim of this study was to analyze whether the clinically available non-selective inhibitor methylene blue, or the selective soluble guanylyl cyclase inhibitor ODQ (1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one), could mitigate L-DOPA-induced dyskinesia in 6-hydroxydopamine-lesioned rats. Here, we demonstrated that methylene blue was able to reduce L-DOPA-induced dyskinesia incidence when chronically co-administered with L-DOPA during 3 weeks. Methylene blue chronic (but not acute) administration (2 weeks) was effective in attenuating L-DOPA-induced dyskinesia in rats rendered dyskinetic by a previous course of L-DOPA chronic treatment. Furthermore, discontinuous methylene blue treatment (e.g., co-administration of methylene blue and L-DOPA for 2 consecutive days followed by vehicle and L-DOPA co-administration for 5 days) was effective in attenuating dyskinesia. Finally, we demonstrated that microinjection of methylene blue or ODQ into the lateral ventricle effectively attenuated L-DOPA-induced dyskinesia. Taken together, these results demonstrate an important role of NO-soluble guanylyl cyclase-cGMP signaling on L-DOPA-induced dyskinesia. The clinical implications of this discovery are expected to advance the treatment options for patients with Parkinson's disease.
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Affiliation(s)
- Keila Bariotto-Dos-Santos
- Department of Morphology, Physiology and Pathology, Dentistry School, University of São Paulo, Ribeirão Preto, SP, Brazil.,Department of Behavioral Neurosciences, Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of São Paulo, São Paulo, SP, Brazil
| | - Fernando Eduardo Padovan-Neto
- Department of Morphology, Physiology and Pathology, Dentistry School, University of São Paulo, Ribeirão Preto, SP, Brazil.,Department of Behavioral Neurosciences, Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of São Paulo, São Paulo, SP, Brazil.,Department of Psychology, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Mariza Bortolanza
- Department of Morphology, Physiology and Pathology, Dentistry School, University of São Paulo, Ribeirão Preto, SP, Brazil.,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of São Paulo, São Paulo, SP, Brazil
| | - Maurício Dos-Santos-Pereira
- Department of Morphology, Physiology and Pathology, Dentistry School, University of São Paulo, Ribeirão Preto, SP, Brazil.,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of São Paulo, São Paulo, SP, Brazil.,Department of Physiology, Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Rita Raisman-Vozari
- INSERM, UPMC, Thérapeutique Expérimentale de la Neurodégénérescence, Hôpital de la Salpetrière - ICM, Paris, France
| | - Vitor Tumas
- Department of Behavioral Neurosciences, Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of São Paulo, São Paulo, SP, Brazil
| | - Elaine Del Bel
- Department of Morphology, Physiology and Pathology, Dentistry School, University of São Paulo, Ribeirão Preto, SP, Brazil.,Department of Behavioral Neurosciences, Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of São Paulo, São Paulo, SP, Brazil.,Department of Physiology, Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
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2
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Santos-Lobato BL, Borges V, Ferraz HB, Mata IF, Zabetian CP, Tumas V. Association of a neuronal nitric oxide synthase gene polymorphism with levodopa-induced dyskinesia in Parkinson's disease. Nitric Oxide 2017; 74:86-90. [PMID: 28602747 DOI: 10.1016/j.niox.2017.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 04/18/2017] [Accepted: 06/06/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND Levodopa-induced dyskinesia (LID) is a common complication of advanced Parkinson's disease (PD). PD physiopathology is associated with dopaminergic and non-dopaminergic pathways, including the nitric oxide system. The present study aims to examine the association of a neuronal nitric oxide synthase gene (NOS1) single nucleotide polymorphism (rs2682826) with LID in PD patients. METHODS AND RESULTS We studied 186 PD patients using levodopa. The presence of LID was defined as a MDS-UPDRS Part IV score ≥1 on item 4.1. We tested for association between NOS1 rs2682826 and the presence, daily frequency, and functional impact of LID using regression models, adjusting for important covariates. There was no significant association between genotype and any of the LID-related variables examined. CONCLUSIONS Our results suggest that this NOS1 polymorphism does not contribute to LID susceptibility or severity. However, additional studies that include a comprehensive set of NOS1 variants will be needed to fully define the role of this gene in LID.
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Affiliation(s)
- Bruno Lopes Santos-Lobato
- Department of Neurosciences and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil; Center for Research Support on Applied Neuroscience (NAPNA-USP), São Paulo, Brazil.
| | - Vanderci Borges
- Department of Neurology, Federal University of São Paulo, São Paulo, SP, Brazil.
| | | | - Ignacio Fernandez Mata
- Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA; Department of Neurology, University of Washington, Seattle, WA, USA.
| | - Cyrus P Zabetian
- Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA; Department of Neurology, University of Washington, Seattle, WA, USA.
| | - Vitor Tumas
- Department of Neurosciences and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil; Center for Research Support on Applied Neuroscience (NAPNA-USP), São Paulo, Brazil.
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3
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Bortolanza M, Padovan-Neto FE, Cavalcanti-Kiwiatkoski R, Dos Santos-Pereira M, Mitkovski M, Raisman-Vozari R, Del-Bel E. Are cyclooxygenase-2 and nitric oxide involved in the dyskinesia of Parkinson's disease induced by L-DOPA? Philos Trans R Soc Lond B Biol Sci 2016; 370:rstb.2014.0190. [PMID: 26009769 DOI: 10.1098/rstb.2014.0190] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Inflammatory mechanisms are proposed to play a role in L-DOPA-induced dyskinesia. Cyclooxygenase-2 (COX2) contributes to inflammation pathways in the periphery and is constitutively expressed in the central nervous system. Considering that inhibition of nitric oxide (NO) formation attenuates L-DOPA-induced dyskinesia, this study aimed at investigating if a NO synthase (NOS) inhibitor would change COX2 brain expression in animals with L-DOPA-induced dyskinesia. To this aim, male Wistar rats received unilateral 6-hydroxydopamine microinjection into the medial forebrain bundle were treated daily with L-DOPA (21 days) combined with 7-nitroindazole or vehicle. All hemi-Parkinsonian rats receiving l-DOPA showed dyskinesia. They also presented increased neuronal COX2 immunoreactivity in the dopamine-depleted dorsal striatum that was directly correlated with dyskinesia severity. Striatal COX2 co-localized with choline-acetyltransferase, calbindin and DARPP-32 (dopamine-cAMP-regulated phosphoprotein-32), neuronal markers of GABAergic neurons. NOS inhibition prevented L-DOPA-induced dyskinesia and COX2 increased expression in the dorsal striatum. These results suggest that increased COX2 expression after L-DOPA long-term treatment in Parkinsonian-like rats could contribute to the development of dyskinesia.
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Affiliation(s)
- Mariza Bortolanza
- School of Odontology of Ribeirão Preto, Department of Morphology, University of São Paulo (USP), Physiology and Basic Pathology, Av. Café S/N, 14040-904, Ribeirão Preto, São Paulo, Brazil Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of Sao Paulo, São Paulo, Brazil
| | - Fernando E Padovan-Neto
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of Sao Paulo, São Paulo, Brazil Department of Behavioural Neurosciences, Av. Bandeirantes 3900, 14049-900 Ribeirão Preto, São Paulo, Brazil
| | - Roberta Cavalcanti-Kiwiatkoski
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of Sao Paulo, São Paulo, Brazil Medical School, Department of Physiology, University of Sao Paulo, São Paulo, Brazil
| | - Maurício Dos Santos-Pereira
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of Sao Paulo, São Paulo, Brazil Medical School, Department of Physiology, University of Sao Paulo, São Paulo, Brazil
| | - Miso Mitkovski
- Light Microscopy Facility, Max Planck Institute of Experimental Medicine, Hermann-Rein-Str. 3, 37075 Göttingen, Germany
| | - Rita Raisman-Vozari
- Institut de Cerveau et de la Moelle Epinière, Sorbonne Université UPMC UM75 INSERM U1127, CNRS UMR 7225, Paris, France
| | - Elaine Del-Bel
- School of Odontology of Ribeirão Preto, Department of Morphology, University of São Paulo (USP), Physiology and Basic Pathology, Av. Café S/N, 14040-904, Ribeirão Preto, São Paulo, Brazil Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of Sao Paulo, São Paulo, Brazil Department of Behavioural Neurosciences, Av. Bandeirantes 3900, 14049-900 Ribeirão Preto, São Paulo, Brazil Medical School, Department of Physiology, University of Sao Paulo, São Paulo, Brazil
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Padovan-Neto FE, Cavalcanti-Kiwiatkoviski R, Carolino ROG, Anselmo-Franci J, Del Bel E. Effects of prolonged neuronal nitric oxide synthase inhibition on the development and expression of l-DOPA-induced dyskinesia in 6-OHDA-lesioned rats. Neuropharmacology 2015; 89:87-99. [DOI: 10.1016/j.neuropharm.2014.08.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 08/21/2014] [Accepted: 08/23/2014] [Indexed: 12/21/2022]
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Kumari R, Kumar JBS, Luthra PM. Post-lesion administration of 7-NI attenuated motor and non-motor deficits in 6-OHDA induced bilaterally lesioned female rat model of Parkinson's disease. Neurosci Lett 2014; 589:191-5. [PMID: 25528406 DOI: 10.1016/j.neulet.2014.12.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 12/01/2014] [Accepted: 12/13/2014] [Indexed: 02/03/2023]
Abstract
The preoperative neuroprotective effect of the 7-nitroindazole (7-NI) in 6-hydroxydopamine (6-OHDA) induced unilateral male animal models of Parkinson's disease (PD) has been widely reported. However, the therapeutic approach to PD pathology would be closely associated with the post-lesion treatment by 7-NI in 6-OHDA-induced bilateral model. Also, there is a scarcity of data on neuroprotective effect of 7-NI in PD in females. We have studied the neuroprotective effects of 7-NI in 6-OHDA-induced bilaterally lesioned female rats after short-term post-lesion treatment. Sprague-Dawley female rats with bilateral intraventricular injection of either 6-OHDA (10.5μg) (n=8-11/group) or saline (sham; n=8/group) at substantia nigra (SN) were provided with 7-NI (30mg/kg/day) intraperitoneal, once a day during the 3 consecutive days of short term treatment. 6-OHDA lesioned animals developed the motor and non-motor deficits, which were evaluated by behavioral and neuro-biochemical tests from the substantia nigra. Post-lesion administration of 7-NI reduced the motor deficits induced by 6-OHDA in the behavioral tasks such as Rota rod, open field test and forced swim test. Simultaneously, the dopamine levels were restored by 7-NI in post lesion animals up to 76% in comparison to 6-OHDA lesioned animals (23%). Furthermore, antioxidant-like effect of 7-NI was observed in lipid peroxidation, catalase, superoxide dismutase, and reduced glutathione tests. Conclusively, the present study showed that early postoperative administration of 7-NI attenuates the motor deficits induced by 6-OHDA in bilaterally lesioned female rat model of PD.
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Affiliation(s)
- Rita Kumari
- Neuropharmaceutical Research Laboratory, Dr. B.R. Ambedkar Centre for Biomedical Research, University of Delhi, North Campus, Mall Road, Delhi 110007, India
| | - J B Senthil Kumar
- Neuropharmaceutical Research Laboratory, Dr. B.R. Ambedkar Centre for Biomedical Research, University of Delhi, North Campus, Mall Road, Delhi 110007, India
| | - Pratibha Mehta Luthra
- Neuropharmaceutical Research Laboratory, Dr. B.R. Ambedkar Centre for Biomedical Research, University of Delhi, North Campus, Mall Road, Delhi 110007, India.
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Bortolanza M, Cavalcanti-Kiwiatkoski R, Padovan-Neto FE, da-Silva CA, Mitkovski M, Raisman-Vozari R, Del-Bel E. Glial activation is associated with l-DOPA induced dyskinesia and blocked by a nitric oxide synthase inhibitor in a rat model of Parkinson's disease. Neurobiol Dis 2014; 73:377-87. [PMID: 25447229 DOI: 10.1016/j.nbd.2014.10.017] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 10/22/2014] [Indexed: 12/22/2022] Open
Abstract
l-3, 4-dihydroxyphenylalanine (L-DOPA) is the most effective treatment for Parkinson's disease but can induce debilitating abnormal involuntary movements (dyskinesia). Here we show that the development of L-DOPA-induced dyskinesia in the rat is accompanied by upregulation of an inflammatory cascade involving nitric oxide. Male Wistar rats sustained unilateral injections of 6-hydroxydopamine (6-OHDA) into the medial forebrain bundle. After three weeks animals started to receive daily treatment with L-DOPA (30 mg/kg plus benserazide 7.5 mg/kg, for 21 days), combined with an inhibitor of neuronal NOS (7-nitroindazole, 7-NI, 30 mg/kg/day) or vehicle (saline-PEG 50%). All animals treated with L-DOPA and vehicle developed abnormal involuntary movements, and this effect was prevented by 7-NI. L-DOPA-treated dyskinetic animals exhibited an increased striatal and pallidal expression of glial fibrillary acidic protein (GFAP) in reactive astrocytes, an increased number of CD11b-positive microglial cells with activated morphology, and the rise of cells positive for inducible nitric oxide-synthase immunoreactivity (iNOS). All these indexes of glial activation were prevented by 7-NI co-administration. These findings provide evidence that the development of L-DOPA-induced dyskinesia in the rat is associated with activation of glial cells that promote inflammatory responses. The dramatic effect of 7-NI in preventing this glial response points to an involvement of nitric oxide. Moreover, the results suggest that the NOS inhibitor prevents dyskinesia at least in part via inhibition of glial cell activation and iNOS expression. Our observations indicate nitric oxide synthase inhibitors as a therapeutic strategy for preventing neuroinflammatory and glial components of dyskinesia pathogenesis in Parkinson's disease.
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Affiliation(s)
- Mariza Bortolanza
- University of São Paulo (USP), School of Odontology of Ribeirao Preto, Department of Morphology, Physiology and Basic Pathology, Av. Café S/N, 14040-904 Ribeirão Preto, SP, Brazil; USP, Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), Brazil
| | - Roberta Cavalcanti-Kiwiatkoski
- USP, Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), Brazil; USP, Medical School, Department of Physiology, Av. Bandeirantes 3900, 14049-900 Ribeirão Preto, SP, Brazil
| | - Fernando E Padovan-Neto
- USP, Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), Brazil; USP, Department of Behavioral Neurosciences, Av. Bandeirantes 3900, 14049-900 Ribeirão Preto, SP, Brazil
| | - Célia Aparecida da-Silva
- University of São Paulo (USP), School of Odontology of Ribeirao Preto, Department of Morphology, Physiology and Basic Pathology, Av. Café S/N, 14040-904 Ribeirão Preto, SP, Brazil; USP, Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), Brazil
| | - Miso Mitkovski
- Light Microscopy Facility Max-Planck-Institute of Experimental Medicine, Hermann-Rein-Str. 3, 37075 Göttingen, Germany
| | - Rita Raisman-Vozari
- Sorbonne Université UPMC UM75 INSERM U1127, CNRS UMR 7225, Institut de Cerveau et de la Moelle Epinière, Paris, France
| | - Elaine Del-Bel
- University of São Paulo (USP), School of Odontology of Ribeirao Preto, Department of Morphology, Physiology and Basic Pathology, Av. Café S/N, 14040-904 Ribeirão Preto, SP, Brazil; USP, Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), Brazil; USP, Medical School, Department of Physiology, Av. Bandeirantes 3900, 14049-900 Ribeirão Preto, SP, Brazil; USP, Department of Behavioral Neurosciences, Av. Bandeirantes 3900, 14049-900 Ribeirão Preto, SP, Brazil.
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Solís O, Espadas I, Del-Bel EA, Moratalla R. Nitric oxide synthase inhibition decreases l-DOPA-induced dyskinesia and the expression of striatal molecular markers in Pitx3(-/-) aphakia mice. Neurobiol Dis 2014; 73:49-59. [PMID: 25281315 DOI: 10.1016/j.nbd.2014.09.010] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 09/12/2014] [Accepted: 09/21/2014] [Indexed: 01/09/2023] Open
Abstract
Nitric oxide (NO), a gaseous messenger molecule synthesized by nitric oxide synthase (NOS), plays a pivotal role in integrating dopamine transmission in the basal ganglia and has been implicated in the pathogenesis of Parkinson disease (PD). To study the role of the nitrergic system in l-DOPA-induced dyskinesia (LID), we assessed the effect of the pharmacological manipulation of NO levels and NO/cyclic guanosine monophosphate (cGMP) signaling on LID in the Pitx3(-/-) aphakia mouse, a genetic model of PD. To evaluate the effect of decreased NO signaling on the development of LID, Pitx3(-/-) mice were chronically treated with l-DOPA and 7-nitroindazole (7-NI, a neuronal NOS inhibitor). To evaluate its effect on the expression of established LID, 7-NI was administered acutely to dyskinetic mice. The chronic 7-NI treatment attenuated the development of LID in the Pitx3(-/-) mice, and the sub-acute 7-NI treatment attenuated established dyskinesia without affecting the beneficial therapeutic effect of l-DOPA. Moreover, 7-NI significantly reduced FosB and pAcH3 expression in the acutely and chronically l-DOPA-treated mice. We also examined how increasing NO/cGMP signaling affects LID expression by acutely administering molsidomine (an NO donor) or zaprinast (a cGMP phosphodiesterase 5-PDE5 inhibitor) before l-DOPA in mice with established dyskinesia. Paradoxically, the administration of either of these drugs also significantly diminished the expression of established LID; however, the effect occurred at the expense of the antiparkinsonian l-DOPA properties. We demonstrate that targeting the NO/cGMP signaling pathway reduces dyskinetic behaviors and molecular markers, but only the 7-NI treatment preserved the antiparkinsonian effect of l-DOPA, indicating that NOS inhibitors represent a potential therapy to reduce LID.
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Affiliation(s)
- Oscar Solís
- Instituto Cajal, Consejo Superior de Investigaciones Científicas, CSIC, 28002 Madrid, Spain; CIBERNED, Instituto de Salud Carlos III, Madrid, Spain
| | - Isabel Espadas
- Instituto Cajal, Consejo Superior de Investigaciones Científicas, CSIC, 28002 Madrid, Spain; CIBERNED, Instituto de Salud Carlos III, Madrid, Spain
| | - Elaine A Del-Bel
- Department of Morphology, Physiology and Pathology, School of Odontology, University of Sao Paulo, Campus Ribeirao Preto, Brazil
| | - Rosario Moratalla
- Instituto Cajal, Consejo Superior de Investigaciones Científicas, CSIC, 28002 Madrid, Spain; CIBERNED, Instituto de Salud Carlos III, Madrid, Spain.
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Del-Bel E, Padovan-Neto FE, Szawka RE, da-Silva CA, Raisman-Vozari R, Anselmo-Franci J, Romano-Dutra AC, Guimaraes FS. Counteraction by nitric oxide synthase inhibitor of neurochemical alterations of dopaminergic system in 6-OHDA-lesioned rats under L-DOPA treatment. Neurotox Res 2013; 25:33-44. [PMID: 23807548 DOI: 10.1007/s12640-013-9406-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 06/12/2013] [Accepted: 06/14/2013] [Indexed: 12/21/2022]
Abstract
Nitric oxide synthase inhibitors reduce L-3, (Del-Bel et al., Cell Mol Neurobiol 25(2):371-392, 2005) 4-dihydroxyphenylalanine (L-DOPA)-induced abnormal motor effects subsequent to depletion of dopaminergic neurons in rodents and non-human primates. The present study used quantitative high-performance liquid chromatography to analyze, for the first time, dopamine metabolism in striatum of rats in order to elucidate the mechanism of action of the nitric oxide synthase inhibitors. Adult male Wistar rats received unilateral microinjection of saline (sham) or 6-hydroxydopamine (6-OHDA-lesioned) in the medial forebrain bundle. Past 3 weeks, rats were treated during 21 days with L-DOPA/benserazide (30 mg/kg/7.5 mg/kg, respectively, daily). On the 22nd day rats received an intraperitoneal (i.p.) injection of either vehicle or 7-nitroindazole, a preferential neuronal nitric oxide synthase inhibitor before L-DOPA. Abnormal involuntary movements and rotarod test were assessed as behavioral correlate of motor responses. Lesion intensity was evaluated through tyrosine hydroxylase immunohystochemical reaction. Dopamine, 3,4-dihydroxyphenylacetic acid (DOPAC), and an extent of dopamine striatal tissue levels/dopamine metabolism were measured in the striatum. Lesion with 6-OHDA decreased dopamine, DOPAC, and DOPAC/dopamine ratio in the lesioned striatum. L-DOPA treatment induced abnormal involuntary movements and increased DOPAC/dopamine ratio (nearly five times) in the lesioned striatum. L-DOPA-induced dyskinesia was mitigated by 7-nitroindazole, which also decreased dopamine turnover, dopamine and DOPAC levels. Our results revealed an almost two times increase in dopamine content in the non-lesioned striatum of 6-OHDA-lesioned rats. Reduction of striatal DOPAC/dopamine ratio in dyskinetic rats may suggest an increase in the dopamine availability. Our data confirm contribution of nitrergic transmission in the pathogenesis of L-DOPA-induced dyskinesia with potential utilization of nitric oxide synthase inhibitors for treatment.
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Affiliation(s)
- Elaine Del-Bel
- Department of Morphology, Physiology and Pathology, School of Odontology, University of São Paulo, Campus Ribeirão Preto, Av. Café S/N, Ribeirão Preto, SP, 14040-904, Brazil,
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Padovan-Neto FE, Ferreira NR, de Oliveira-Tavares D, de Aguiar D, da Silva CA, Raisman-Vozari R, Del Bel E. Anti-dyskinetic effect of the neuronal nitric oxide synthase inhibitor is linked to decrease of FosB/DeltaFosB expression. Neurosci Lett 2013; 541:126-31. [DOI: 10.1016/j.neulet.2013.02.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 02/02/2013] [Accepted: 02/06/2013] [Indexed: 12/21/2022]
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Mitkovski M, Padovan-Neto FE, Raisman-Vozari R, Ginestet L, da-Silva CA, Del-Bel EA. Investigations into Potential Extrasynaptic Communication between the Dopaminergic and Nitrergic Systems. Front Physiol 2012; 3:372. [PMID: 23055978 PMCID: PMC3457048 DOI: 10.3389/fphys.2012.00372] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Accepted: 08/29/2012] [Indexed: 12/21/2022] Open
Abstract
Nitric oxide is unconstrained by cell membranes and can therefore act along a broad distance as a volume transmitter. Spillover of nitric oxide between neurons may have a major impact on central nervous system diseases and particularly on neurodegeneration. There is evidence whereby communication between nitrergic and dopaminergic systems plays an essential role in the control of the nigrostriatal pathway. However, there is sparse information for either the coexistence or overlap of nitric oxide and dopaminergic structures. The dual localization of immunoreactivity for nitric oxide synthase (NOS) and tyrosine hydroxylase, enzymes responsible for the synthesis of nitric oxide and dopamine, respectively, was examined in neurons of the nigrostriatal pathway in the rat brain by means of a double-immunohistochemical method and confocal laser scanning microscopy, acquired at the resolution limit. After perfusional fixation, the brains were cut and double-immunostained. A proximity analysis of tyrosine hydroxylase and NOS structures was done using binary masks generated from the respective maximum projections, using confocal laser microscopy. Unrevealed regions were determined somatodendritic positive for both NOS and tyrosine hydroxylase, within an image limit resolution at 2 μm-wide margin. The described interconnected localization of nNOS(+) and TH(+) containing neuronal fibers and cells bodies in the nigrostriatal pathway propose a close anatomical link between the two neurotransmitters.
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Affiliation(s)
- M Mitkovski
- Light Microscopy Facility, Max-Planck-Institute of Experimental Medicine Göttingen, Germany
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Takuma K, Tanaka T, Takahashi T, Hiramatsu N, Ota Y, Ago Y, Matsuda T. Neuronal nitric oxide synthase inhibition attenuates the development of L-DOPA-induced dyskinesia in hemi-Parkinsonian rats. Eur J Pharmacol 2012; 683:166-73. [PMID: 22449381 DOI: 10.1016/j.ejphar.2012.03.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 02/28/2012] [Accepted: 03/04/2012] [Indexed: 01/05/2023]
Abstract
Long-term treatment with the dopamine precursor levodopa (l-DOPA) frequently induces dyskinesia in Parkinson's disease patients, which is a major complication of this therapy. Previous studies using animal models show that repeated administration of l-DOPA results in alterations of some signaling molecules, including ΔFosB, phospho-DARPP32 and phosoho-GluA1 (also referred to as GluR1 or GluR-A) AMPA receptor subunits. Moreover, an in vivo microdialysis study showed that l-DOPA increases nitric oxide (NO) production in the striatum. However, it is not known whether NO is involved in the development of dyskinesia. The present study examined the effects of NOS inhibitors on the development of l-DOPA-induced dyskinesia in the rats. Dyskinesia symptoms were triggered by daily administration of l-DOPA for 3-4weeks in unilateral 6-hydroxydopamine lesioned rats. Repeated treatments, 30min prior l-DOPA administration, of the nonselective NOS inhibitor, N(G)-nitro-l-arginine methyl ester, and the nNOS inhibitor 7-nitroindazole, but not the inducible NOS inhibitor aminoguanidine, attenuated the development of l-DOPA-induced dyskinesia. In agreement with the behavioral analysis, 7-nitroindazole reduced the l-DOPA-induced increases in ΔFosB, phospho-DARPP32 and phospho-GluA1 AMPA receptor subunit levels in the striatum of 6-hydroxydopamine-lesioned rats. Furthermore, aminoguanidine did not affect ΔFosB or phospho-GluA1 AMPA receptor subunit levels. These findings suggest that nNOS-derived NO is involved in the development of l-DOPA-induced dyskinesia through a post-synaptic mechanism.
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Affiliation(s)
- Kazuhiro Takuma
- Laboratory of Medicinal Pharmacology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
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Padovan-Neto FE, Echeverry MB, Chiavegatto S, Del-Bel E. Nitric Oxide Synthase Inhibitor Improves De Novo and Long-Term l-DOPA-Induced Dyskinesia in Hemiparkinsonian Rats. Front Syst Neurosci 2011; 5:40. [PMID: 21713068 PMCID: PMC3114204 DOI: 10.3389/fnsys.2011.00040] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Accepted: 05/23/2011] [Indexed: 12/05/2022] Open
Abstract
Inhibitors of neuronal and endothelial nitric oxide synthase decrease l-3,4-dihidroxifenilalanine (l-DOPA)-induced dyskinesias in rodents. The mechanism of nitric oxide inhibitor action is unknown. The aims of the present study were to investigate the decrease of l-DOPA-induced abnormal involuntary movements (AIMs) in 6-hydroxydopamine (6-OHDA)-lesioned rats by nitric oxide inhibitors following either acute or chronic treatment. The primary findings of this study were that NG-nitro-l-Arginine, an inhibitor of endothelial and neuronal nitric oxide synthase, attenuated AIMs induced by chronic and acute l-DOPA. In contrast, rotational behavior was attenuated only after chronic l-DOPA. The 6-OHDA lesion and the l-DOPA treatment induced a bilateral increase (1.5 times) in the neuronal nitric oxide synthase (nNOS) protein and nNOS mRNA in the striatum and in the frontal cortex. There was a parallel increase, bilaterally, of the FosB/ΔFosB, primarily in the ipsilateral striatum. The exception was in the contralateral striatum and the ipsilateral frontal cortex, where chronic l-DOPA treatment induced an increase of approximately 10 times the nNOS mRNA. Our results provided further evidence of an anti-dyskinetic effect of NOS inhibitor. The effect appeared under l-DOPA acute and chronic treatment. The l-DOPA treatment also revealed an over-expression of the neuronal NOS in the frontal cortex and striatum. Our results corroborated findings that l-DOPA-induced rotation differs between acute and chronic treatment. The effect of the NOS inhibitor conceivably relied on the l-DOPA structural modifications in the Parkinsonian brain. Taken together, these data provided a rationale for further evaluation of NOS inhibitors in the treatment of l-DOPA-induced dyskinesia.
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