Abstract:
:A case-control study was undertaken to investigate the status of platelet monoamine oxidase-B (MAO-B) activity in Indian cases of idiopathic Parkinson's disease. A significant increase in the activity of platelet MAO-B was observed in Parkinson's cases (n = 26) as compared to controls (n = 26). No significant change in the activity of the enzyme was observed while the data was analysed with respect to age, sex and duration of disease. A trend of decrease in platelet MAO-B activity was observed in Parkinson's cases with respect to stage although the change was not significant. No correlation in platelet MAO-B activity was observed with respect to age and sex in the control subjects. Parkinson's cases treated with L-DOPA and MAO-B inhibitor exhibited decreased platelet MAO-B activity as compared to drug naive cases and those treated with L-DOPA alone. Interestingly, Parkinson's cases treated with L-DOPA and amantadine also had lower platelet MAO-B activity as compared to drug naive cases and those treated with L-DOPA alone. Activity of platelet MAO-B in Parkinson's patients was increased in naive cases and those treated with L-DOPA alone or in combination with other drugs compared to controls. The results of the present study indicate that phenotypic activity of platelet MAO-B is high in Indian Parkinson's cases. Further, action mechanism of drugs used in the treatment of Parkinson's disease could be understood by assay of platelet MAO-B activity. It is an interesting observation and may be looked further in large number of cases.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Husain M,Shukla R,Dikshit M,Maheshwari PK,Nag D,Srimal RC,Seth PK,Khanna VKdoi
10.1007/s11064-009-9929-4subject
Has Abstractpub_date
2009-08-01 00:00:00pages
1427-32issue
8eissn
0364-3190issn
1573-6903journal_volume
34pub_type
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