Abstract：
:The mechanisms underlying lateralization and progression of motor symptoms from unilateral to bilateral in Parkinson's disease (PD) remain to be elucidated. In addition, the molecular mechanisms involved in levodopa-induced dyskinesias (LIDs) depending on lateralization and disease progression from unilaterally to bilateral have not been described yet. We investigated motor symptoms, LIDs and associated striatal molecular markers expression after unilateral left or right, and after a sequential bilateral 6-hydroxydopamine (6-OHDA)-induced nigrostriatal lesions in rats. Sequentially bilateral lesioned animals showed a bilateral increase in striatal preproenkephalin (PPE) mRNA without changes in pre-prodynorphin (PDyn) mRNA expression. The increase in dyskinesias when parkinsonism becomes bilateral was mostly due to an increase in orolingual dyskinesias associated to a increase in PDyn mRNA expression. Right lesion induces, or facilitates when first-done, a greater level of LIDs and an increase in striatal PPE and PDyn mRNAs in the second lesioned side. We describe a new striatal molecular pattern that appears when parkinsonism becomes bilateral and the relevance of the lateralization for the development of LIDs.
journal_name
Neuropharmacologyjournal_title
Neuropharmacologyauthors
Marin C,Bonastre M,Mengod G,Cortés R,Rodríguez-Oroz MCdoi
10.1016/j.neuropharm.2015.06.004subject
Has Abstractpub_date
2015-10-01 00:00:00pages
365-75eissn
0028-3908issn
1873-7064pii
S0028-3908(15)00262-2journal_volume
97pub_type
杂志文章abstract：:Stimulation of cannabinoid CB1 receptors or inhibition of nitric oxide synthase (NOS) in the dorsolateral periaqueductal gray (dlPAG) decreases anxiety-like behavior. Moreover, activation of CB1 receptors attenuates flight responses induced by nitric oxide (NO) donors in the dlPAG, suggesting that endocannabinoids and...
journal_title：Neuropharmacology
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journal_title：Neuropharmacology
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journal_title：Neuropharmacology
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journal_title：Neuropharmacology
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journal_title：Neuropharmacology
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journal_title：Neuropharmacology
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journal_title：Neuropharmacology
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journal_title：Neuropharmacology
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journal_title：Neuropharmacology
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journal_title：Neuropharmacology
pub_type： 杂志文章
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更新日期：1994-01-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
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更新日期：2011-10-01 00:00:00
