Levodopa and neuropathy risk in patients with Parkinson disease: Effect of COMT inhibition.

Abstract:

OBJECTIVE:Our purpose was to determine whether the use of catechol-O-methyltransferase-inhibitors (ICOMT) can reduce the risk of developing levodopa (LD)-induced neuropathy in Parkinson's disease (PD) patients. METHODS:A multicentre study of 197 PD patients was performed. 144 were exposed to LD for more than three years (LELD group); 53 simultaneously assumed Entacapone for at least eighteen months (LELD_ICOMT group). RESULTS:The prevalence of neuropathy in LELD patients was 19.4% whereas it was 5.7% in LELD_ICOMT group with a significant difference (p = 0.025). In LELD_ICOMT cohort the daily LD dose and serum VB12 levels were significantly higher (p < 0.0001), the serum Hcy levels were significantly lower (p = 0.001) compared to LELD group. CONCLUSION:Our results suggest that ICOMT could have a protective effect on the development of LD-induced neuropathy. Their action probably occurs through the metabolic rebalancing of the one-carbon-pathway cycle and is independent of the PD duration and severity and the duration of LD intake.

authors

Cossu G,Ceravolo R,Zibetti M,Arca R,Ricchi V,Paribello A,Murgia D,Merola A,Romagnolo A,Nicoletti V,Palermo G,Mereu A,Lopiano L,Melis M,Abbruzzese G,Bonuccelli U

doi

10.1016/j.parkreldis.2016.04.016

subject

Has Abstract

pub_date

2016-06-01 00:00:00

pages

81-4

eissn

1353-8020

issn

1873-5126

pii

S1353-8020(16)30120-1

journal_volume

27

pub_type

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