PMID- 15804266 OWN - NLM STAT- MEDLINE DCOM- 20050520 LR - 20151113 IS - 1351-5101 (Print) IS - 1351-5101 (Linking) VI - 12 IP - 5 DP - 2005 May TI - Hyperhomocysteinemia in L-dopa treated Parkinson's disease patients: effect of cobalamin and folate administration. PG - 365-8 AB - Homocysteine (Hcy) is a risk factor for vascular diseases, cognitive impairment and dementia. L-dopa treatment may represent an acquired cause of hyperhomocysteinemia (HHcy), as evidenced by studies in rats as well as in Parkinson's disease (PD) patients. Folate and cobalamin status also seems to influence the effects of L-dopa on plasma Hcy levels; therefore B-vitamins supplementation has been proposed to reduce the HHcy in L-dopa treated PD patients. Plasma Hcy, folate, and cobalamin levels were evaluated in 20 PD patients treated with L-dopa in the baseline condition and following a 5-week period of treatment with cobalamin and folate; results were compared with 35 controls. Analysis of data revealed that Hcy levels were higher in L-dopa treated PD patients when compared with age- and sex-matched controls and that supplementation of the diet with cobalamin and folate is effective in reducing Hcy concentrations; these findings may have important implications in the treatment of PD patients who are potentially at risk for vascular diseases and cognitive impairment or dementia. FAU - Lamberti, P AU - Lamberti P AD - Department of Neurological Sciences, University of Bari, Ospedale Policlinico, Bari, Italy. lamberti@neurol.uniba.it FAU - Zoccolella, S AU - Zoccolella S FAU - Armenise, E AU - Armenise E FAU - Lamberti, S V AU - Lamberti SV FAU - Fraddosio, A AU - Fraddosio A FAU - de Mari, M AU - de Mari M FAU - Iliceto, G AU - Iliceto G FAU - Livrea, P AU - Livrea P LA - eng PT - Journal Article PL - England TA - Eur J Neurol JT - European journal of neurology JID - 9506311 RN - 0 (Antiparkinson Agents) RN - 0LVT1QZ0BA (Homocysteine) RN - 46627O600J (Levodopa) RN - 935E97BOY8 (Folic Acid) RN - P6YC3EG204 (Vitamin B 12) SB - IM MH - Aged MH - Antiparkinson Agents/*adverse effects MH - Female MH - Folic Acid/blood/*therapeutic use MH - Homocysteine/blood MH - Humans MH - Hyperhomocysteinemia/blood/etiology/*prevention & control MH - Levodopa/*adverse effects MH - Male MH - Middle Aged MH - Parkinson Disease/blood/drug therapy MH - Vitamin B 12/blood/*therapeutic use EDAT- 2005/04/05 09:00 MHDA- 2005/05/21 09:00 CRDT- 2005/04/05 09:00 PHST- 2005/04/05 09:00 [pubmed] PHST- 2005/05/21 09:00 [medline] PHST- 2005/04/05 09:00 [entrez] AID - ENE973 [pii] AID - 10.1111/j.1468-1331.2004.00973.x [doi] PST - ppublish SO - Eur J Neurol. 2005 May;12(5):365-8. doi: 10.1111/j.1468-1331.2004.00973.x.