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Effect Of SNP rs198389 of BNP Gene On The Natriuretic Peptides Levels In Cardiovascular Patients
Author name:
Alaa Salman Idan Al - Ibrahimi
Supervisor name:
Monem M. Al | shok | Moaed E. Al | Gazally
General topic:
Medicine
Specific topic:
Clinical Biochemistry
Degree:
Master
University:
University of Babylon - Faculty Of Medicine - Department Of Biochemistry
Language:
English
University location:
Babylon
First pages:
19T1195 - p.pdf
Abstract:
Acute coronary syndrome (ACS) refers to any group of acute signs and symptoms attributed to sever obstruction of the coronary arteries. Acute coronary syndrome usually occurs because of one of three problems : ST elevation myocardial infarction, non - ST elevation myocardial infarction, and unstable angina. These types are named according to the results of the electrocardiogram (ECG). In addition to clinical and electrocardiogram (ECG) findings, several biochemical markers are considered in patients with chest pain to diagnose myocardial ischemia. Heart failure (HF) according to American College of Cardiology (ACC) and American Heart Association (AHA) is a complex clinical syndrome that can be caused by any structural or functional disorder in the heart that fails the capability of the ventricle to fill with or to eject blood. The diagnosis is often performed clinically on the basis of the presence of dyspnea, fatigue, signs of fluid overload, such as pulmonary crepitation, peripheral edema, and distension of jugular vein.B - type natriuretic peptide (BNP) and N - terminal pro - BNP (NT - proBNP) are secreted by human atrial and ventricular myocardium. The rise in BNP and NT - proBNP levels after ACS and HF correlates with infarct size and regional wall motion abnormalities. Echocardiography remains the most frequently used and usually the initial imaging test to evaluate all cardiovascular diseases related to a structural, functional, or hemodynamic abnormality of the heart or great vessels. This study is designed to investigate and assess the serum concentrations of BNP and NT - proBNP in patients with HF and ACS; In addition, almost equal number of males and females are chosen to control the effect of age and gender on the levels of BNP and NT - proBNP. Also, the study aims to evaluate the effect of BNP gene T - 381C (rs198389) polymorphism on the plasma human levels of BNP and NT - proBNP and compare the results that will obtain with healthy control.The present study was involved (70) patients, (35) of them with ACS and the other (35) with HF. The study also includes (22) subjects were taken as control group. The sera obtained from the blood of patients and control subjects were used to measure the concentrations of BNP and NT - proBNP, while whole blood samples from study subjects are used to extract DNA for the study of polymorphism in BNP gene.The results indicate both the ACS and HF groups have significantly higher levels of BNP and NT - proBNP when compared to control group, also HF patients have higher levels of both parameters than ACS patients, in all comparison (p
