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Lecture

Class 15.docx

6 Pages
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Department
Health Sciences
Course Code
Health Sciences 1002A/B
Professor
Shauna Burke

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Description
Class 15 After exam 3202012 73700 AM Cancer Overall Abnormal and uncontrolled growth of cellsTumour a mass of cells with no physiological purposeBenign tumour only dangerous if affects other body functionsMalignant Cancer cancer can spread to surrounding tissue 45 men will have cancer in their life time 40 women will have cancer in their life time aging population leading cause of death Canada followed by heart diseasestrokeall cancers are preventable o tobacco use30 of all cancer deaths 85 of lung cancer cases o 87 of all lung cancer cases prevented by avoiding tobacco exposure o poor diet exercise habits and obesity22 of all cancer deathsRole of DNAOncogene if mutated cancer causing Tumour Suppressor gene normal function is to control cell growth unmutated oncogeneMutagens substances that cause mutations in DNACarcinogens mutagens that cause canceronly mutagens that cause cancerLifestyle and Genetics Lifestyle factors are related to modifications in DNA o Dietary factors Alcohol consumptionObesityphysical activity not correlated to BMI but correlated to fat content adipose indicator o Hormone replacement therapy high estrogen levels
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