Lung Cancer
Write an article on lung cancer Paper must be at least 1750 words. Please, no plagiarized work! Only 2 % of lung cancer cases were in people younger than 45. For men, the possibility of lung cancer development is 1 in 13 and for women is 1 in 16. This statistic includes both smokers and non-smokers. The highest risk for lung cancer development has smokers – 80-90% compared to non-smokers – 10-15% who are passive smokers. Passive smokers are people who inhale smoke from another smoker. Passive smoking causes 3.400 deaths from lung cancer in the United States. The other quite common reason for lung cancer development in the United States is radon gas radiation generated from radioactive radium. Annually it leads to 21.000 deaths. It is observed that approximately 1 out of 15 houses in the US have radon levels higher than recommended. Air pollution with nitrogen dioxide, sulfate aerosols and other dangerous substances causes 1-2% of lung cancer cases. Genetic inheritance related to polymorphism in chromosomes 5, 6 and 15 provokes 8% of all lung cancer cases. ( American cancer society, 2014)Lung cancer defined as a pulmonary carcinoma or carcinoma of the lung. It is associated with abnormal cell growth in the lung tissue caused by DNA damage and epigenetic changes. It provokes disorders in cell functioning that include apoptosis or programmed cell death, cell growth or proliferation and DNA repair. Lung cancer divided into two types. They are small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC). They differ in cancer cell size and the way of treatment.Among all lung cancer non- small lung cancer is the most common one -80-90%. NSCLC divided into 3 subtypes. Squamous cell carcinoma affects squamous cells in the lung’s airways. These are flat cells that make an internal layer of the airways. This subtype leads to 20-30% of the NSCLC. Adenocarcinoma affects cells that secrete mucus and peripheral lung tissues.Approximately 40% of lung cancer is adenocarcinoma. Women have a higher predisposition to this lung cancer.
