EEMB 50 Non Infectious Diseases
EEMB 50 Non Infectious Diseases
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This 2 page Reader was uploaded by Gabriela Lopez on Friday April 11, 2014. The Reader belongs to a course at University of California Santa Barbara taught by a professor in Fall. Since its upload, it has received 129 views.
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Date Created: 04/11/14
EEMB50 Non Infectious Diseases April 07 2014 Lecture 4 A War on Cancer Was a massive failure Nixon signed a 16 billion cancer bill in 1971 There has been much decrease in death rate since then Incidence The of new cases of a disease occurring in a given population over a certain period of time NOT A GIVEN Many decreases in ling cancer have been due to the decrease in smoking but not because of new treatments that put an end to cancer The technology and medicine has grown since the time of the bill and so beating cancer is now a more realistic goal because we know its chemistry and more about it Most cancers cannot be cured but can be controlled History Case 45 4500 yrs ago scribe wrote down the studies of Imhotep and people recognized cancer and its difference to other diseases They knew that nothing could be done to treat patients with cancer Doctors linked cancer with civilization because prior to industrialization there weren t as many cases of cancer Hippocrates 460370 BC Carcinos Greek for crab FOR HARD TUMORS Onkos Greek for mass burden FOR MALIGNANT TUMORS Hippocrates proposed the FOUR HUMORS and Gala later expanded on it which explained some of the causes of diseases and ways of restoring balance They proposed that the body was composed of four body uids the 4 humors balance between them determined the health of an individual Imbalance caused illness 1 Blood 2 Phlegm 3 Black bile 4 Yellow bile Excess of black or yellow bile could lead to disease and black bile in particular was associated with cancer and depression Remedy was too remove excess and restore balance Ex in ammation is a good sign of healing but they believed they had to remove excess blood and so would open the skin and let the blood ow out Galen proposed cancer was amasses black bile that could not escape and so that caused the lumps to form The best practice for 2000 yrs was to do nothing Surgery did not cure cancer and so they did not perform any Surgeries that Were performed were done in a speedy manner because there Was no anesthesia but the cause of infection and germs later led to their death faster than the actual cancer would have killed them Rudolf Virchnow 1821 1902 Was a German doctor who discovered leukemia in a patient who had a milky White substance in his blood and proposed the cell theory John Bennett also contributed to the discovery of leukemia and described the blood as being spoiled Cell Theory All living things are composed of cells and cell products and cells only arise from other cells Cell types 1 Hyertrophy an increase in the size of the cells but not number 2 Hyperplasia an increase in the number of cells 3 Pathological Hyperplasia an increase in the number of cells caused by a disease Cancer is a pathological hyperplasia because it causes abnormal increase in numbers of cells and is caused by a disease
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