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Physiological Effects of Nicotine and Ethanol Rebecca B R Milholland
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Tobacco Plant Grown for its nicotine containing leaves which are smoked, chewed, or sniffed Nicotiana tobacum
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Nicotine Nicotine is an alkaloid found naturally in tobacco plants, tomatoes, potatoes, eggplant and green peppers
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Nicotine Nicotine is an alkaloid found naturally in tobacco plants, tomatoes, potatoes, eggplant and green peppers
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Motorneuron Muscle Fiber Neuromuscular Junction Neuromuscular System
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Motorneuron Muscle Fiber Signal from the Brain Nerve Terminal Neuromuscular System
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Motorneuron Muscle Fiber Signal from the Brain Acetylcholine (ACh)
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Neuromuscular System Motorneuron Muscle Fiber Signal from the Brain Acetylcholine (ACh)
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Neuromuscular System Motorneuron Muscle Fiber Signal from the Brain Nicotine
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Nicotinic Syndrome
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Nicotine produces tachycardia and blood pressure through its action in the sympathetic nervous system or the “Fight or Flight” system.
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Nicotine decreases appetite.
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Nicotine’s action on skeletal muscles and the diaphragm to produce paralysis and asphyxiation
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Chronic Effects of Nicotine
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Chronic administration leads to coronary artery disease and hypertension
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Nicotine produces peptic ulcer disease,and esophageal reflux through its influences on the Gastrointestinal tract.
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Nicotine enhances learning and memory
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Nicotine’s influences in the brain also produces its addictive properties Nicotine enhances learning and memory
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Most Likely Avenues for Exposure Tobacco Products Insecticides – Anti-AChE (Acetylcholine Esterase) – nAChR activators (like nicotine)
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Alcohol CC H HH H HOH
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Factors which Influence Ethanol Movement Though the Body Absorption
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Factors which Influence Ethanol Movement Though the Body Absorption Distribution and Solubility – Body Fat Percentage
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Dose-Response Curve for Acute CNS Response to Ethanol Dose Response Giddy Labored breathing Unconscious Sleep Deep sleep Death No effect
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Chronic CNS Effects of Ethanol Korsacoff’s Syndrome – Loss of short term memory – Due to a Thyamine Defficiency
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Ethanol Acetaldehyde NAD NADH Alcohol Dehydrogenase
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Ethanol Acetaldehyde Acetate NAD NADH NAD NADH Alcohol Dehydrogenase Aldehyde Dehydrogenase
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Ethanol Acetaldehyde Acetate Citric Acid Cycle NAD NADH NAD NADH Alcohol Dehydrogenase Aldehyde Dehydrogenase Energy
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Ethanol Acetaldehyde Acetate Citric Acid Cycle NAD NADH NAD NADH Alcohol Dehydrogenase Aldehyde Dehydrogenase Energy Fatty Liver Fibrosis Cirrosis
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Ethanol Acetaldehyde Acetate Citric Acid Cycle NAD NADH NAD NADH Alcohol Dehydrogenase Aldehyde Dehydrogenase Energy Fatty Liver Fibrosis Cirrosis P450
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Ethanol Interaction with P 450 Acute Administration - P 450 Chronic Administration - P 450
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Acetominophen Sulfation Glucuronidation Safe Excretion by Kidney and in Bile Detoxication
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Acetominophen Sulfation Glucuronidation Safe Excretion by Kidney and in Bile Detoxication Quinoneimine Free Radical Liver and Kidney Damage Activation to a Toxic Metabolite
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Acetominophen Sulfation Glucuronidation Safe Excretion by Kidney and in Bile Detoxication Quinoneimine Free Radical Liver and Kidney Damage Activation to a Toxic Metabolite P450
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Acetominophen Sulfation Glucuronidation Safe Excretion by Kidney and in Bile Detoxication Quinoneimine Free Radical Liver and Kidney Damage Activation to a Toxic Metabolite P450 Ethanol Induction Of P450 Expression
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Other Alcohols Methanol
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Other Alcohols Methanol – Induces blindness and death due to formic acid production
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Other Alcohols Methanol – Induces blindness and death due to formic acid production Ethylene Glycol
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Other Alcohols Methanol – Induces blindness and death due to formic acid production Ethylene Glycol – Kidney damage due to oxalic acid production and crystal formation in the renal tubules
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Other Alcohols Methanol – Induces blindness and death due to formic acid production Ethylene Glycol – Kidney damage due to oxalic acid production and crystal formation in the renal tubules Treat Exposures to Both Alcohols with Ethanol!!
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Conclusions: Nicotine Acute
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Conclusions: Nicotine Acute – Acts at acetylcholine receptor in muscle – Produces asphyxiation and paralysis
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Conclusions: Nicotine Acute – Acts at acetylcholine receptor in muscle – Produces asphyxiation and paralysis Chronic
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Conclusions: Nicotine Acute – Acts at acetylcholine receptor in muscle – Produces asphyxiation and paralysis Chronic – Acts at acetylcholine receptors in the sympathetic nervous system to coronaroy artery disease and high blood pressure – Acts at acetylcholine receptors in the brain to induce physical addiction.
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Conclusions: Ethanol Acute
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Conclusions: Ethanol Acute – Fatty Liver – CNS Depression
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Conclusions: Ethanol Acute – Fatty Liver – CNS Depression Chronic
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Conclusions: Ethanol Acute – Fatty Liver – CNS Depression Chronic – Korsacoff’s Syndrome – Cirrosis of the Liver
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