Coronary heart disease (CHD) is a group of syndromes that are caused from plaque built up inside the coronary arteries1. CHD is the most common cause of death worldwide, with more than 7 million deaths per year2. As a significant public health issue, CHD has been intensively studied for its risk prediction3–8. The initial models have been developed with risk factors such as age, blood pressure, cigarette smoking, total cholesterol, high density lipoprotein cholesterol, and diabetes status3. To improve prediction of CHD beyond traditional risk factors, there were endeavors to add emerging risk factors such as C-reactive protein8–10 and risk scores using candidate genes11,12. Advances in genomic technologies led to identification of novel CHD susceptibility genes from large-scale genome-wide association studies (GWAS) in various ethnicities 13–39. …show more content…
The genetic risk score (GRS) using discovered or candidate SNVs plays a role as a predictor of incident CHD after accounting for traditional risk factors40.
Searching for other genetic mechanisms than a SNV effect is becoming more and more crucial in the field of genomics41 and it is valuable to explore if we can improve CHD prediction with the GRS reflecting various genetic mechanisms. In prevention of deaths from adverse cardiovascular events, one of the barriers is that CVD morbidity and mortality does not decrease significantly by reducing traditional lifestyle risk factors42. One of reasons to this is late detection of severe CVD. Identifying genetic risk factors that can predict CHD would secure longer times before the severe adverse event. Similarly, adding the evidence of the genetics of biomarker which is a strong predictor of cardiac death or hospitalization43 to the prediction model can be a way of more efficient prevention. There are several biomarkers declared as the preferred markers for diagnosing cardiac diseases by the American College of Cardiology and the European Society of Cardiology44. High sensitivity Troponin T (Hs-TnT), N-terminal pro-brain natriuretic peptide (NT-proBNP) and high sensitivity
C-reactive protein (Hs-CRP) are distinct biomarkers that reflect cardiovascular disease (CVD) or inflammation. Highly sensitive troponin measurements were reported to be associated with adverse cardiovascular events in heart failure (HF)45 and CHD patients46. Additionally, it was also reported by the ARIC investigators that individuals with a high troponin T level were at higher risk of CHD47. NT-proBNP has been also shown to be a strong predictor of HF and CVD mortality in acute coronary syndrome patients48–50. A multimarker study employing NT-proBNP, Troponin I, cystatin C and Hs-CRP has shown that combined biomarkers improved risk stratification for CVD death. The association between cardiac biomarkers and CHD gives a clue that the genetics behind troponins may predict the risk of CHD. Despite of potential utility in prediction, there is few evidence on the genetic of cardiac biomarkers. There is only one large-scale GWAS within the ARIC study identified eighteen loci associated with troponin T measured by a previous technology51. With the use of cardiac biomarkers in the cohort study settings, we can identify novel genetic variants associated with pathways represented by four biomarkers and test the impact on prediction of CHD.
Cardiomyopathy, by definition, means the weakening of the heart muscle. The heart is operated by a striated muscle that relies on the autonomic nervous system to function. Cardiomyopathy is diagnosed in four different ways based on what caused the illness and exactly what part of the heart is weakened. The four main types of cardiomyopathy are dilated cardiomyopathy, hypertrophic cardiomyopathy, restrictive cardiomyopathy, and arrhythmogenic right ventricular dysplasia. One other category of cardiomyopathy that is diagnosed is “unclassified cardiomyopathy.” Unclassified cardiomyopathy is the weakening of the heart that does not fit into the main four categories.
An artery is an elastic blood vessel that transports blood away from the heart. There are two main types of arteries: pulmonary arteries and systemic arteries.
Hypertrophic cardiomyopathy is a genetic disease of the heart, making the cardiac muscle is thick and strong. The thick muscle causes a decrease in cavity size, forcing the heart to pump less blood. Hypertrophic cardiomyopathy is one of the primary causes of sudden death as the prevention of blood flow causes cardiac arrest. More successful research is being conducted on HCM, including research on the genetics associated and the heredity of the genes. Unfortunately this disorder effects many young athletes due to their increased stresses of training on their heart. However, despite the use of new technology such as the electrocardiogram and transthoracic echocardiogram, the strategies are limited, restricting new answers.
CAD is a leading cause of morbidity and mortality throughout the worldwide. The prevalence of biological and metabolic risk factors were also found to be high in development of coronary artery disease. Patients with hypercholesterolemia are at increased risk to experience cardiovascular events and to die from vascular disease [2]. .Statins, among the most commonly prescribed drugs worldwide, are cholesterol let downing agents used to manage cardiovascular and coronary heart diseases and to treat hypercholesterolemia. Statin’s therapy ...
The contributing factor is lack of knowledge and family medical screening. Understanding the history of your genetic line specific to your race and ethnicity may be helpful in preventing heart disease later on in adulthood.... ... middle of paper ... ... Current studies of note have focused primarily on middle-class and/or suburban populations.
... susceptibility. Patients who subsequently needed further treatment for coronary heart disease displayed significantly different protein expression as opposed to patients who needed no further treatment. This revolutionary study provides a new way of detecting coronary artery disease that is both cost effective and less dangerous for patients.
Cardiovascular Disease is defined by the American Heart Association as “Heart and blood vessel disease”. Atherosclerosis of the arteries, can lead to hypertension, heart failure, arrhythmias, heart valve problems, myocardial infarctions or a stroke (AHA, 2016). In this paper, all of heart and vessel diseases aforementioned, will be considered cardiovascular disease (CVD). According to
The hereditary risk factors for cardiovascular disease are primarily those of which individuals are unable to control, the ones for which they are born with. These risk factors would include an individual’s sex, race, age, and genetics. One out of every five males has some form of cardiovascular disease and the same applies for females. More women than men have cardiovascular disease in this country, but this is only due to the fact that there are more women within the U.S. population (Weiss and Lonnquist, 2011). Men percentage wise are at a higher risk than women. There is a somewhat reduced probability for females to have cardiovascular disease before menopause. This is believed by medical researchers and scientists to be directly related to the natural hor...
One of the leading causes of death in the United States is heart disease. “Approximately every 29 seconds one American will have a heart attack, and once a minute one American will die from a heart attack” (Ford-Martin and Odle, 915). According to the Gale Encyclopedia of Alternative Medicine men over the age of 45 and women over the age of 55 are considered at risk for heart disease. Heart disease is a major cause of death. It is beneficial to individuals who seek to prevent heart disease to recognize the risks leading to heart attacks as they are one of the primary indications of developing heart disease; especially those that fall into the at risk age groups. These risks consist of some that cannot be changed such as heredity risks, or those that can change such as smoking habits. It is very important to know these specific risks for prevention and to understand the symptoms of heart attacks, such as sweating or the feeling of weakness so if these or other symptoms occur people are aware. Finally heart disease treatment is of vital importance if you experience a heart attack so you can learn how to prevent another one from occurring.
Coronary heart disease or coronary artery disease affects 16.8 million people in the United States and causes more than 607,000 deaths annually (Lemone, chap.30). It is caused by atherosclerosis which is the accumulation of fatty deposits in the arteries causing impaired blood flow to the myocardium. CAD or coronary artery syndrome is usually without symptoms but may induce heart attack, angina and acute coronary syndrome if not properly treated. There are many risk factors associated with CAD like obesity, high cholesterol diet, hereditary, physical inactivity, just to name a few. Patients with CAD may be unable to identify and manage their risks factors. It is imperative for nurses to educate the patient about CAD and measures to enhance their health.
Your genetic information determines the genes you inherit that may cause or elevate your risk of certain medical conditions. My family genogram clearly indicates the risk of developing type 2 diabetes (T2D), heart disease (HD), hypercholesterolemia (HC) and hypertension (HTN). Heart disease is indicated on both maternal and paternal side and even though T2D only shows on my paternal side, the other diseases such as HC and HTN that are on my maternal side are risk factors for developing diabetes. According to Pessoa Marinho et al. (2013), the genetic and environmental risk factors that influence T2D development are: “age, gender, ethnicity, family history, obesity, inactivity, gestational diabetes, macrosomia, hypertension, decreased high-density lipoprotein cholesterol, increased triglycerides, cardiovascular diseases, micropolycystic ovary syndrome, high blood glucose on previous testing, impaired glucose tolerance and glycated hemoglobin ≥5.7%” (Pessoa Marinho et al., 2013, p. 570). Bianco et al. (2013) states, “the maternal influence confirms the hereditary role in the diabetes pathogenesis that women with positive family history to the illness presented...
(Slide 2) What is Cardiomyopathy? If we break down the word we can see “Cardio” which means of the heart, “myo” which means muscle, and “pathy” which means disease, therefore cardiomyopathies are diseases of the heart muscle. (Slide 3) There are 3 main types of cardiomyopathies; hypertrophic, dilated, and restrictive. I will only be discussing dilated cardiomyopathy, which is characterized by the enlargement of the hearts chambers with impaired systolic function. It is estimated that as many as 1 of 500 adults may have this condition. Dilated cardiomyopathy is more common in blacks than in whites and in males than in females. It is the most common form of cardiomyopathy in children and it can occur at any age (CDC).
Oxygen was first admitted to the client with chest pain over 100 years ago (Metcalfe, 2011). Chest pain is a large bracket that can contain many different conditions, but for the purpose of this analysis it is focused manly upon a myocardial infarction. A myocardial infarction is mainly referred to as a heart attack, and occurs when one or more coronary arteries leading to the heart reduce or completely stop blood flow (Tuipulotu, 2013 ). Administering high concentrations of oxygen to patients with chest pain is now embedded in guidelines, protocols and care pathways, even with a lack of clear supporting evidence (Nicholson, 2004 ). High concentration of oxygen means that up to 60% is administered (Knott, 2012). More recent research has suggested that the use of oxygen in this scenario is unnecessary and can lead to unwanted side effects, especially in normoxic cardiac patients (Moradkham & Sinoway, 2010 ). The aim of this comparative analysis is to dismantle and understand both the benefits and risks of the commonly known practice of administration of oxygen to the client with chest pain. Through completing this analysis using recent and appropriate evidence a more improved practice can be given and understood.
The simulation study showed that the additional information of CNP could increase the accuracy of predicted genotypic value, compared to using SNP information alone in an association study. The accuracy was heavily dependent on the heritability of CNP phenotypes (correlation of CNP genotype and phenotype) (Table 3). The higher accuracy of the prediction with CNP information might also result in smaller mean squared errors of prediction (Table 4)’.
Genetics & Personalized Medicine. (2013). University of Ottawa Heart Institute. Retrieved on February 3, 2014 from: http://www.ottawaheart.ca/research_discovery/genetics-personalized-medicine.htm