BPK 140 Lecture Notes - Lecture 4: Prostate Cancer, Skin Cancer, Melanoma
3 Mar 2020
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Cancer accounts for more than 30% of all deaths. Death def: stop of brain function (one definition) Lung/breast/colorectal and prostate cancers account for over half of all newly diagnosed cancers. Improvements in screening/early detection: more effective, less toxic treatments. #ability to sequence dna, could chop dna and read them and put them together, person won nobel prize, michael smith @ ubc. Cancer related to uncontrolled growth of cells in body, due to mutations (when cells copy itself, it stops eventually. Cancerous cells. : take up space, demand more energy (increased blood flow) Abnormal cells divide and create other abnormal cells. Benign tumour (isn"t travelling, not life threatening) Death can occur when cancer affects a major organ/system in body. function becomes compromised. Cancer is #1 reason for pyll, heart disease is #2 reason for pyll. Dna made up of base pairs and certain sequences (of 3) which make up an instruction.
