Comparison of the antioxydant enzyme levels with the degree of dysfunction in patients with myocardial dysfunction
Küçük Resim Yok
Tarih
2004
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Objective: Myocardial dysfunction in patients with cardiomyopathy is proposed to occur due to membrane changes caused by oxidative stress. In our study we evaluate whether there is any relation between the degree of myocardial dysfunction and antioxicant enzymes. Methods: We studied superoxide dismutase (SOD), glutathione peroxidase (GSHPx) and catalase (CAT) enzyme activities from blood samples of 60 patients (30 patients had ejection fraction (EF) <%35 and 30 patients had EF= %35-50) who have myocardial dysfunction according to clinical findings and two dimensional echocardiography, and 20 healthy volunteers. Results: We found erythrocyte SOD enzyme activities of patients with EF <%35 (group 3) were significantly lower than in control subjects (group 1) (p=0.01). However in group 2 patients (EF=%35-50), erythrocyte SOD activities were found to be lower than in control subjects but this difference was not significant. Erythrocte CAT and GSHPx enzyme activities of group 3 were also significantly lower than in control group (p=0.04 and p=0.02 respectively). Conclusion: In conclusion, reactive oxygen species play a significant role in the initiation and the progression of congestive heart failure. Increased free radicals levels may cause myocardial muscle dysfunction.
Açıklama
Anahtar Kelimeler
Antioxidant enzyme, Free oxygen radicals, Ischemic cardiomyopathy
Kaynak
Anadolu Kardiyoloji Dergisi
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
4
Sayı
2
