New Amantadine Pill Cuts Dyskinesia in Parkinson's (CME/CE)

(MedPage Today) -- But questions about cost-effectiveness remain
Source: MedPage Today State Required CME - Category: Consumer Health News Source Type: news

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Contributors : Shetty R DYAVAR ; Stella M PapaSeries Type : Expression profiling by arrayOrganism : Rattus norvegicusWe compared differential gene expression between Striatal tissue derived RNA isolated from Chronic Levodopa (L-DOPA) treated (L-Dopa methyl ester plus benserazide were given at 25 mg/kg and 6.25 mg/kg dose) -Parkinsonian and Dyskinetic Rats (LID Rats) for 8 days as compared to Parkinsonian Disease Control Rats (PD Control Rats). The hypothesis tested in the present study was that whether Inflammation has any role in Chronic Levodopa Induced Dyskinesia in Rats of Parkinson's disease model-as compared to Contr...
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by array Rattus norvegicus Source Type: research
CONCLUSION: Continuous circadian i.c.v. of A-dopamine appears to be feasible and shows efficacy without dyskinesia with a safe therapeutic index. PMID: 32205254 [PubMed - as supplied by publisher]
Source: Neurobiology of Disease - Category: Neurology Authors: Tags: Neurobiol Dis Source Type: research
AbstractL-3,4-dihydroxyphenylalanine (L-DOPA) was introduced about half a century ago and is still the most effective medicine for the treatment of Parkinson ’s disease (PD). However, such chronic treatment eventually leads to L-DOPA-induced dyskinesia (LID) on the majority of PD patients. Besides L-DOPA, dopamine agonists are able to induce dyskinesia as well. So far no drug is yet claimed to effectively curb LID, and amantadine has only a modest bene fit on LID patients. Thus, understanding the molecular mechanisms behind LID is urgently needed, and developing new antiparkinsonian medications with low dyskinesia po...
Source: Neurological Sciences - Category: Neurology Source Type: research
Istradefylline: adenosine A2A receptor antagonist to reduce "OFF" time in Parkinson's disease. Drugs Today (Barc). 2020 Feb;56(2):125-134 Authors: Paton DM Abstract Parkinson's disease (PD) is an extremely common degenerative disease with a progressive course. Unfortunately, the longer patients are treated with levodopa, the more likely they are to suffer from increasingly long periods of immobility or "OFF" time. For over 30 years Kyowa Kirin Co., Ltd. (formerly Kyowa Hakko Kirin Co., Ltd.) has been researching the possibility of finding drugs that affect adenosine receptors and th...
Source: Drugs of Today - Category: Drugs & Pharmacology Tags: Drugs Today (Barc) Source Type: research
Dopamine-replacement utilizing L-DOPA is still the mainstay treatment for Parkinson ’s disease (PD), but often leads to development of L-DOPA-induced dyskinesia (LID), which can be as debilitating as the motor ...
Source: BMC Research Notes - Category: Research Authors: Tags: Research note Source Type: research
CONCLUSIONS: These results indicate that MR1916 specifically reduces L-DOPA-induced dyskinesia without affecting the antiparkinsonian effect of L-DOPA in parkinsonian rats. PMID: 32144743 [PubMed - as supplied by publisher]
Source: Pharmacological Reports - Category: Drugs & Pharmacology Authors: Tags: Pharmacol Rep Source Type: research
AbstractBackgroundThe efficacy and safety of opicapone, a once-daily catechol-O-methyltransferase inhibitor, have been established in two large randomized, placebo-controlled, multinational pivotal trials. Still, clinical evidence from routine practice is needed to complement the data from the pivotal trials.MethodsOPTIPARK (NCT02847442) was a prospective, open-label, single-arm trial conducted in Germany and the UK under clinical practice conditions. Patients with Parkinson ’s disease and motor fluctuations were treated with opicapone 50 mg for 3 (Germany) or 6 (UK) months in addition to their current levodop...
Source: Translational Neurodegeneration - Category: Neurology Source Type: research
CONCLUSIONS: Safinamide, at a clinically relevant dose, optimizes the effect of l-DOPA therapy in experimental PD reducing SPNs excitability and modulating synaptic transmission. Co-administration of safinamide and l-DOPA ameliorates motor deficits. PMID: 32142791 [PubMed - as supplied by publisher]
Source: Neuropharmacology - Category: Drugs & Pharmacology Authors: Tags: Neuropharmacology Source Type: research
(Parkinson's UK) Results from a study looking at an experimental drug to tackle the debilitating side effect of dyskinesia, have offered hope that it may have potential as a future treatment for people with Parkinson's.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news
In this study, rats with unilateral dopaminergic lesion were injected with L-DOPA (12 mg/kg, i.p.) for seven days, while motor behavior was correlated with in vivo electrophysiology analyzing LFP and single-cell activity in both primary motor cortex and dorsolateral striatum. Our study showed that as LID established, high γ oscillation (hγ) predominated during LID, the number of unstable responses of SPN to dopamine increased, and the coherence between these patterns of oscillation and spiking activity also increased. We found that pretreatment of NMDA receptor antagonist, amantadine 60 mg/kg, i.p. (AMAN) s...
Source: Neurobiology of Disease - Category: Neurology Authors: Tags: Neurobiol Dis Source Type: research
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