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Yıl:2010; Cilt: 47; Sayı: 4>> Özet
TAM METİN
Nöropsikiyatri Arşivi; 2010;47(4):297-301
Parkinson Hastalarında L-Dopa Tedavisinin, Plazma Homosistein Düzeyleri ve Bununla İlişkili Karotis İntima-Media Kalınlıkları Üzerine Olan Etkisi
SE Özbek, M Zarifoğlu, Ç Akgül, N Bolca, G Ocakoğlu, N Karlı
Uludağ Üniversitesi Tıp Fakültesi, Nöroloji Anabilim Dalı, Bursa, Türkiye
Amaç: Bu çalışmada, levodopa tedavisi alan Parkinson hastalarında, hiperhomosisteinemi ve karotis intima media kalınlık (KIMK) değerleri karotis Doppler ultrasonografi kullanılarak araştırılmıştır.

Yöntemler: Bu çalışma 23 Parkinson hastası ve yaş-cinsiyet olarak benzer 21 sağlıklı gönüllü üzerinde yapıldı. Tüm olgulara, karotis arter intima-media kalınlığının araştırılması amaçlı Doppler ultrasonografi uygulandı. Bununla birlikte plazma homosistein, vitamin B12 ve folik asit düzeyleri ölçüldü. Ateroskleroz progresyonunun değerlendirilmesi amacıyla bir yıl sonra karotid Doppler ultrasonografi ve homosistein seviyeleri tekrar değerlendirildi.

Bulgular: Çalışmamızda örneklem sayımızın az olmasına rağmen, bu hastalarda bazal artmış homosistein düzeyleriyle paralel olarak bazal karotis intima media kalınlık (KIMK) değerlerininde artmış olduğu görüldü. Takip süresi sonunda, hiperhomosisteinemiden bağımsız olarak bilateral karotid intima-media kalınlıkları artmıştı.

Sonuç: Sonuç olarak, Parkinson hastalarında L-dopa tedavisinin hiperhomosisteinemiye neden olabileceği ile ilgili birçok çalışma yayınlanmıştır. Fakat hiperhomosisteinemi ile artmış vasküler hastalık riski arasındaki ilişki halen tartışmalıdır. Biz, çalışma sonuçlarımıza dayanarak, Parkinson hastalarında hiperhomosisteineminin arter duvar kalınlığı artışına neden olabileceğini, fakat ateroskleroz progresyonu üzerine olan etkisinin tartışmalı olduğunu öne sürmekteyiz.
Effect of L-Dopa Therapy on Plasma Homocysteine Levels and, Consequently, on Carotid İntima-Media Thickness in Parkinson?s Disease Patients
Objective: In this study, we investigated hyperhomocysteinemia, as well as carotid intima-media thickness (CIMT) measurements using carotid Doppler ultrasonography, in Parkinson patients on levodopa treatment.

Methods: This study was carried out on 23 patients with Parkinson's disease and 21 age-and gender-matched healthy volunteers. Carotid Doppler ultrasonography was performed in order to determine CIMT in all cases. In addition, plasma homocysteine, vitamin B12 and folate levels were measured. Carotid Doppler ultrasonography and homocysteine levels were repeated one [year] later to evaluate the rate of atherosclerosis progression.

Results: Although the population sample was limited, there was an increase in baseline CIMT measurements that occurred in parallel with an increase in baseline homocysteine levels in these patients. At the end of the follow-up period, a bilateral increase in CIMT was observed, which was not correlated to hyperhomocysteinemia.

Conclusion: In conclusion, many clinical studies on hyperhomocysteinemia caused by L-dopa therapy in Parkinson patients have been published. However, the relationship between hyperhomocysteinemia and increased risk of vascular disease is still controversial. On the basis of this result, we speculated that hyperhomocysteinemia might lead to an increase in the arterial wall thickness, but its effect on the progression of atherosclerosis is still discussable.

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