490 likes | 524 Views
Delve into the historical timeline of tobacco use and its impact on lung diseases, particularly lung cancer. Explore the worldwide statistics, harmful components of cigarettes, and the detrimental effects of smoking on the body.
E N D
LUNG DISEASES AND TOBACCO Prof. Dr. Sevda Özdoğan
HISTORY • Tobacco was used before 1492 for treatment and religious aims among Indians (war and peace sticks) • First European smokers were Christof Colomb and his staf. • First cigarette industry was constructed in 1867 by James Buchanan Duke • Tobacco and cancer relationship was first reported in 1761 by the British scientist John Hill
WORLWIDE: • 1,1 billion people smoke. • 47% male, 12% female smokers • Leading preventible cause of mortality • 6 million people die from smoking related causes every year. • 12000/day / Every 7 seconds • In 2030 ~10 million 70% in developing countries
TURKEY: • 17 million people smoke. • 57% male, 28% female • 100000 die every year. • 250/day, Every 6 minutes
Rate of Smoking in Turkey( Bilir N. et al)Occupation Rate (%)Doctor 43.1Teacher 48.6Journalist 63.9Driver 74.3Police 64.7İmam 25.1Artists 46.2Sportsmen 34.9
85% of Smoking mothers • 49% of Doctors • 63% of Teachers Smoke besides their children ( Bilir N. et al. )
Particulate phase (Catran) NICOTIN, (responsible from addiction) Fenol Cathecol* Anilin Toluidine* Naphtalamine* Benzen, Benzpyren Nickel Polonium 210 Antimone Gas Phase CO Formaldioxide* Formaldehyde Acrolein Amonium* Acetone* Piridine 3- Vinylpiridine Hydrogen syanide Nitrogen oxide* N-nitrosodimethylamine* N-nitrosopirolidine* Formic acid* Lactic acide*.... Cigarette consists *: Irritants
Particulate Phase Hydroxyl (OH-) Superoxide (O2-) Hydrogen Peroxide (H2O2) Semichinon radicale (HQ) Gas Phase Hydroxyl (OH-) Nitrogen dioxide (NO2) Peroxy radicale (ROQ) Oxidatives in Cigarette smoke
Carsinogens • Benzen • Nitrosamines • Naphtalamines • Formaldehyde • Policyclic aromatic hydrocarbons • Polonium 210... ~ 55 carsinogen material.
Peroksidase, Toxic radicalesCIGARETTE Peroksidase, Toxic radicales Alveolar Makrophage Stimulation Extracellular Damage Chemotactic factors Protease, Oksidative MPO Pulmonary Inflamation Parenchymal cell Damage Protease inh Protease, Oksidative MPO Chemotactic factors Extracellular Matrix Repair Emphysema
The risk of bronchogenic carcinoma is proportional to the total lifetime consumption of cigarettes. The relative risk increases with both: • the number of cigarettes smoked per day as well as • the lifetime duration of smoking. • It has been estimated that a 35 year-old man has a 9 percent likelihood of dying from lung cancer before age 85 if he smokes fewer than 25 cigarettes per day, compared with an 18 percent likelihood if he smokes more than 25 cigarettes per day. Mattson ME et all, Am J Public Health 1987; 77-425
Lung with emphysema Normal Lung
50% of smokers develop Chronic Bronchitis, 15-20% develop COPD (Emphsema)
Smoking is responsible from; • 90% of Lung cancer deaths, • 30% of total cancer deaths, • 75% of deaths from Bronchitis, • 25% of heart attack deaths
Smoking Associated Lung Diseases • COPD • Asthma Attacks • Upper and Lower airway infections • Pneumonia • Tuberculosis • RBAILD • Hystiocytosis X • Lung Cancer
Other toxic effects of smoking in the body Organ Effect CVS Atherosclerosis, heart attack Mouth and Throat Loss of taste,halitosis, yellow teeth, tongue, lips, larenx cancer, frequent UAI Nose Diminished sense of smelling CNS Stroke
Organ Effects Gastrointestinal Peptic ulcus, Stomach, pancreas cancer, Bone Osteoporosis Skin Wrinkles, color changes Urogenital Bladder cancer, premature menoposis, erectile disfunction, premature birth, low birth weight
Nicotine • When tobacco burns, Nicotine attaches to 0,1-1 micron particules and reaches the bronchioles and alveoli by inhalation, reaches shortly to the brain by the circulation • It is a physoactive agent that cause addiction • Causes increased secretion of norepinephyrin and dopamin • Stimulating effect (dopamine) • Abstinence symptoms (Norepinephyrin)
Recurrent nicotine stimulation increase the dopamine secretion in Nucleusaccumbens Core 50 Nicotine 40 SF 30 (pg/20 m) Serum physiologic Nicotine 20 Dopamin 10 0 0 30 60 90 120 150 Time (min)
Medulla Oblongata Gyrus Rectus Nucleus Cortex Median Raphe Cerebellar Smoking increases the number of nicotine receptors in brain 400 ** 350 Nonsmoker 300 Smoker 250 Receptor density (fmoles/mg protein) 200 * ** 150 * ** 100 50 0 Hippocampal Formation Hippocampal Neocortex
Behavioral effects of Nicotine • Increased energy, • Increased concentration, • Increased hand-eye coordination • Euphoria • Decreased appetite
Behavioral Psychological Neurochemical Nicotine Addiction Triangle
Genetics of Tobacco addiction • CYP2A6 enzim polimorphysm: Rapid metabolisers of nicotine are easily addicted • SERT (Seratonin transport gene): People with S alel are more resistant to antidepressive treatment, more aggresive and vulnerable to smoking addiction • Triptophane Hydroxilase: Effective in the beginning to smoking
Nicotine addiction is a threat to health Increased concentration Ephoria Decreased appetite Increased energy Physiologic addiction Psychologic addiction Cancer COPD CVS diseases Decreased life expectancy
American Federal Trade Commission (FTC) classification according to the amount of catran • Regular cigarette: > 15 mg • Light cigarette : 7-15 mg • Ultra Light cigarette : 1- 6 mg
But: Every 1mg decrease in catran amount of the cigarette smoked cause 2.13 times increase in the number of cigarettes smoked. Light Cigarettes are not less harmfull!!
Passive smoking • Exaled smoke of a person during smoking • The smoke that comes out of a cigarette burning in an ashtray (side smoke) • Smoke that comes from the paper or filtrate material of a burning cigarette Cause of passive smoking
Combination of the chemicals are different as the cigarette is burning in less temperatures in the ashtray and are more toxic. • 85% of the room air is formed by this side smoke. • Smoker is also effected by this side smoke
Side smoke is at least harmfull as the main smoke!!! • Nicotine content is higher. • Some carsinogens are 10-200 times increased. • 8 hours passive smoking= 20 cigarette smoking • Passive smoking increase the lung cancer risk by 30 • 30 minutes passive smoking acutely decrease coronary blood flow
Children of smoking parents • Low birth weight • Frequent upper and lower airway infections • Frequent otitis • Increased risk of asthma • Increased rate of smoking
Smoking is defined as a disease that should be treated by WHO • It is the primary responsibility of every medical doctor to lead to quit smoking of the patients • One “Quit smoking” message is found to be enough for 5% of the patients
Majority of the smokers start smoking before the age of 20 Those young groups are the targets of smoking industry Todays healthy young age group is expected to be tomorrows cigarette addicted, permanent customers by the Smoking industry
Cigarette industry make advertisement by being sponsores of motor vehicle competitions
Smoking industry increase the advertisement activities in developing countries; whereas the number of smokers decrease in developed countries
71 % of the developing world smoke (2001) Smoking in the last 20 years; Increased 80% in Turkey, Decreased 30% in USA