Journals / İstanbul Tıp Dergisi / 2011 / Cilt: 12 - Sayı: 4

Miyokard infarktüslü hastalarda plazma asimetrik dimetil arginin ve nitrik oksit düzeylerinin erken prognoza etkisi

Plasma Asymmetric dimethylarginine and nitric oxide levels on early prognosis in patients with myocardial infarction

Pages
153–158
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Although MI patients had higher ADMA levels, they showed no correlation with left ventricular systolic function or early cardiac events.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: It is unclear whether abnormalities of nitric oxide (NO) are related to hemodynamic dysfunction and mortality in patients after acute myocardial infarction (MI).
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Key Findings & Data:Methods: Fifty-nine patients (9 females, 50 males, aged 32-75) hospitalized in the Coronary Care Unit were included in the study.
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Conclusion & Impact:Although MI patients had higher ADMA levels, they showed no correlation with left ventricular systolic function or early cardiac events.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: It is unclear whether abnormalities of nitric oxide (NO) are related to hemodynamic dysfunction and mortality in patients after acute myocardial infarction (MI). We investigated the relationship of plasma asymmetric dimethylarginine (ADMA) and NO levels with early prognosis in patients with MI. Methods: Fifty-nine patients (9 females, 50 males, aged 32-75) hospitalized in the Coronary Care Unit were included in the study. Blood samples were obtained on the first day of admission for routine hematological and biochemical tests and for plasma ADMA and NO levels. NO was determined as the concentration of nitrate plus nitrite (NO metabolites) spectrophotometrically at 430 nm using the Griess reaction. ADMA concentrations were determined by competitive ELISA assay. One month after MI, echocardiography was performed on 56 patients who survived, and left ventricular ejection fraction (LVEF) was investigated as a prognostic marker of cardiac function. Results: There was no correlation between ADMA and NO levels with age, gender, smoking, localization of the infarction, history of hypertension, coronary heart disease or diabetes mellitus, and the levels of total cholesterol, triglyceride, lactate dehydrogenase, white blood cells, and Creactive protein. Plasma ADMA concentrations were negatively correlated with NO levels (r=-0.72) and creatine kinase -MB levels (r=-0.37). LVEF had no correlation with ADMA or NO levels (p>0.05). Conclusion: In previous studies, decreased NO and high levels of ADMA were proposed as independent risk factors for coronary artery disease. Although MI patients had higher ADMA levels, they showed no correlation with left ventricular systolic function or early cardiac events.

Özet

Amaç: Miyokard infaktüsünden (Mİ) sonra nitrik oksit (NO) metabolizmasındaki anormalliklerin hemodinamik bozukluk ve mortalite ile ilişkisi açık değildir. Bu çalışmada, Mİ’li hastalarda erken prognoz ile plazma asimertrik dimetil arginin (ADMA) ve NO düzeylerinin ilişkisini inceledik. Gereç ve Yöntem: Koroner yoğun bakım ünitesinde yatırılan 59 (9 kadın, 50 erkek, yaşları 32-75) hasta çalışmaya alındı. Yatış günü rutin biyokimyasal ve hematolojik incelemeler yapıldı, ADMA ve NO değerlerinin ölçülmesi için kan alındı. NO nitrat + nitrit (NO metabolitleri) konsantrasyonu olarak spektrofotometrik yöntemle 430 nm’de Griess reaksiyonu ile ölçüldü. ADMA konsantrasyonları kompetitif ELISA yöntemi ile tayin edildi. Mİ’den bir ay sonra yaşayan 56 hastada kardiyak fonksiyon göstergesi olarak sol ventrikül ejeksiyon fraksiyonu (LVEF) değerlendirildi. Bulgular: ADMA ve NO düyeyleri ile yaş, cinsiyet, sigara kullanımı, infarktüs yeri, hipertansiyon, koroner arter hastalığı, diyabetes mellitus varlığı, total kolesterol, trigliserid, LDL-K, lökosit ve C reaktif protein değerleri arasında ilişki bulunmadı. Plazma ADMA düzeyleri NO ile (r=-0.72); ve kreatin kinaz -MB düzeyleri ile (r=-0.37) negatif olarak koreleydi. LVEF ile ADMA ve NO arasında ilişki bulunmadı. Sonuç: Daha önceki çalışmalarda azalmış NO ve artmış ADMA seviyelerinin koroner arter hastalığı için bağımsız risk faktörleri olduğu bildirilmiştir. Her ne kadar Mİ geçirmiş hastalarda daha yüksek ADMA düzeyleri gözlendiyse de ADMA ile LVEF ve erken kardiyak olaylar arasında ilişki görülmedi.

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Cite This Article

UZUN, H., ARAL, H., GÜVENEN, G., ERDENEN, F., MÜDERRİSOĞLU, C., TÜRKEŞ, Ş., GENÇ, H. (2022). Miyokard infarktüslü hastalarda plazma asimetrik dimetil arginin ve nitrik oksit düzeylerinin erken prognoza etkisi. İstanbul Tıp Dergisi, Cilt: 12 - Sayı: 4, 153–158. https://ajindex.com/articles/552551

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