CVD/Cancer Flashcards
Coronary arteries
Carry blood to heart
Heart beat > twisting > scar tissue/plaques
Atheromatous plaques – cholesterol and tissues
Atherosclerosis
Coronary artery disease (CAD)
Diseases of the heart
Cardiovascular disease (CVD) CAD Coronary heart disease (CHD) Myocardial infarction (heart attack) Hypertension (high blood pressure) Brain – cerebrovascular disease Cerebral infarction (stroke)
CVD prevalence
About 1 in every 4 people has hypertension Per 1,000 Heart disease – all types – 100+ Heart disease – coronary – 50+ Stroke – between 0-50
Risk factors for CVD
Inherent risk factors
Advancing age, family history, gender, ethnic background
Physiological conditions
Hypertension, high cholesterol, problems in glucose metabolism, overweight/obesity, inflammation
Behavioral factors
Smoking, diet, physical activity
Psychosocial factors
Education level and income, social support and marriage, stress/anxiety/depression, hostility and ager
Framingham Heart Study
Recruited 5209 males and female – age 30-62
Extensive medical exams ever 2-4 years since 1948
Established link between cholesterol, high blood pressure and effects of heart disease
Still using these participants and expanded samples to understand CVD
Gender differences
Incidence of CAD increases with age among men and women, but rate of increase is greatest among women after menopause
CVD accounts for twice as many death among women as do all cancers combines
Diagnoses of disease occurs on average 10 years later in women than in men
Across all ages, CAD kills more women then men
Why women?
Differences in symptoms, disease
Unique risk factors
Metabolic syndrome, mental stress and depression, smoking, low levels of estrogen after menopause
Women may not seek help based on vague symptoms
Women are more likely to get misdiagnosed
Awareness of gender differences among physicians
Gender gap for referral for testing and treatment options
Benign vs. malignant
Benign – localized, less threatening
Malinant – secondary qualities, spreading, more threatening evades surrounding tissues, can move through blood and other symptoms
Four types of cancer
Carcinomas
Cancers of the epithelial tissue, lines outer surface of the body
Sarcomas
Arise from cells in connective tissue (bone, muscles, and cartilage)
Lymphomas
Cancers of the lymphatic system (very rare – 5%)
Leukemias
Originate in the blood or blood forming cells (stem cells in the bone marrow)
Family history and cancer
Genes that are implicated in the risk for the development of cancer
BRCA1 and 2 genes – increased risk if have mutated version for breast caner
In unmutated form create a protein for the development against breast cancer
Age
Advancing age, true for both men and women
Second leading cause of death among children between 1-4 years
Ethnic background
African American fare far worse in terms of instance and mortality across all forms of cancer
Also psychosocial and behavioral factors that can explain the discrepancy
Smoking
Lung cancer, and pretty much every cancer that is within the body
Diet
Harmful foods, lack of preservation in foods increases risks of being exposed to certain bacteria and fungi
Too much exposure to preservation can also increase risk
Dietary fat increases risk to colon cancer, and CVD
Alcohol consumption
Known to increase risk of mouth, esophagus, breast and liver cancers