Term
What are the three types of alcohol? What are some specific examples? |
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Definition
- Isopropyl alcohol (rubbing alcohol), methanol (wood alcohol), and ethyl alcohol (drink)
Beer, tequila, whiskey, wine, etc. |
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Term
What are the bodily effects of alcohol? |
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Definition
- Dilation of capillaries (flushed skin)
- Sensation of warmth
- Inhibits antidiuretic hormone/increases urination and water loss
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Term
What are the behavioral effects of alcohol? |
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Definition
- While BAC is rising, feelings of euphoria and elation
- At high levels when BAC is falling, feelings of depression, anger, aggression and sedation
- Decrease in vision (lower acuity and peripheral)
- Decreased sensitiviey to taste, smell, and pain.
- Slower reaction time and accuracy
- Detrimental to memory, attention, and information retrieval
- Blackouts
- Driving issues
- Lack of behavioral inhibition - cares less about risk and social norms - want short term gratification
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Term
What are the effects of chronic consumption? |
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Definition
- Liver damage- cirrhosis
- Nervous system- loss of memory skills, increased risk of excitotoxicity
- Mouth, throat, colon, and liver cancer
- Decreased sex drive in males and adverse fetus effects
- Heart disease
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Term
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Definition
- Yes, too much causes death (in the respiratory center)
- Overdose when used with drugs
- Indirectly by things such as driving deaths and making other stupid decisions
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Term
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Definition
Alcohol cannot be ionized, so it can pass through the stomach, intestines, or colon. It is mostly taken in in the small intestine. |
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Term
How does drinking on an empty stomach get your drunker faster? |
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Definition
There are high levels of alcohol dehydrogenase in the stomach. If there is food in there and it sits there for a while, more will be broken down before entering the blood stream. |
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Term
How is alchol distributed? |
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Definition
Alcohol dissolves faster in water than in fat, so it is distributed mostly in body water. This is why fat people have a lower tolerance, because they have less body water and more fat, so the alcohol is more concentrated. |
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Term
How is alcohol eliminated? |
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Definition
- In breath, sweat, tears, urine, and feces, but 98% is metabolized in the liver and eliminated by the kidneys, lungs, or through skin.
- Alcohol --> acetyaldehyde (rate limiting) --> acetyl coenzyme A
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Term
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Definition
Blood alcohol content
.1% means there are 0.1g of alcohol to every 1L of blood |
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Term
How does alcohol affect GABAa? |
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Definition
It is a positive allosteric modulator, increasing the affinity and efficacy of the channel to open up and let Cl in, hyperpolarizing the cell. |
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Term
How does alcohol affect glutamate transmission? |
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Definition
It binds to NMDA receptors and suppress their activity further. |
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Term
How does alcohol affect dopamine? |
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Definition
It increases dopamine release in the mesolimbic dopamine system (more DA to the NA) |
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Term
Which gene is associated with alcoholism? |
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Definition
DRD2 and maybe ANKK1 (neighboring gene) |
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Term
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Definition
A group that relies on spirituality, interrelationships, and personal accountability to help members improve. Have their 12 steps and traditions to improvement. |
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Term
What are the four approved drugs of alcohol withdrawal treatment? |
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Definition
- Antabuse/Disulfiram: blocks aldehyde dehydrogenase leaving more aldehyde- this makes people feel sick, so they will only have to drink a little to feel sick, promoting less drinking
- Acamprosate: suppresses hyperactive glutamate after drinking activity which reduce the aversiveness of withdrawal
- Naltrexone: an opioid receptor antagonist that reduces the "high" of alcohol along with the craving.
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Term
What are some specific barbituates? |
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Definition
- Phenobarbitual (luminol)
- Butalbital (Fioricet)
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Term
What are four benzodiazepine examples? |
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Definition
- Alprazolam (xanax)
- Diazepam (valium)
- Triazolam (hacion)
- Temazepam (bestoril)
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Term
What are Z-drugs? What are two examples? |
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Definition
They are the same as benzodiazepines but do not mess with sleep architecture (sleep cycles)
- Zolpidem (ambien)
- Eszopiclone (Lunesta)
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Term
What are the bodily effects of anxiolytics/sedative hypnotics? |
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Definition
- Muscle relaxant
- Sedation
- Anticonvulsive
- Increased appetite/weight gain
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Term
What are the behavioral effects of anxiolytics/sedative hypnotics? |
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Definition
- Reduce anxiety
- Can improve performance in individuals with high anxiety
- Deficits in visual and auditory functioning
- Memory impairments
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Term
Can anxiolytics/sedative hypnotics be lethal? |
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Definition
- Barbiturates can be- OD can lead to respiratory failure
- Benzodiazepnies are seldom fatal
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Term
What is the anxiolytics/sedative hypnotics mechanism of action? |
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Definition
There is a binding site specifically for them on GABAa receptors. They are positive allosteric modulators, they increase the likelihood of GABA binding. |
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Term
How do anxiolytics/sedative hypnotics affect dopamine levels? |
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Definition
They inhibit cells from inhibiting the release of dopamine on the VTA (indirectly increases dopamine) |
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Term
Can physical dependence occur with anxiolytics/sedative hypnotics? |
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Definition
Yes, it is possible.
"Mother's Little Helper" - perscribed to stay at home mothers back in the day
But they are often used with other drugs of abuse |
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Term
Is lethality common with anxiolytics/sedative hypnotics? |
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Definition
Yes, causes more deaths per year than heroin, meth, and cocaine |
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Term
What are the short term withdrawal effects of benzodiazepines? |
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Definition
Cramps, tremors, and convlusions.
These are short lived by extremely intense. |
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Term
What are the low-dose long term effects of benzodiazepines? |
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Definition
- Anxiety
- Panic
- Irregular heartbeat
These are less intense, but cyclical and long lasting |
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Term
How can you avoid withdrawal effects from benzodiazepines? |
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Definition
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Term
What are some possible negative effects of Z-drugs? |
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Definition
Next day effects that include memory loss, sleep "activities," and motor function issues |
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Term
What are the three major examples of psychomotor stimulants? |
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Definition
- Cocaine: extracted from coca and was orginally chewed; crack is what you smoke
- Amphetamines: They are synthetic and used to treat narcolepsy and ADHD (adderall); can be turned into meth
- Mehtylphendate: a snthetic drug similar to coaine; used for ADHD (ritalin)
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Term
What are the bodily effects of psychomotor stimulants in low doses? |
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Definition
- Increased heart rate
- Increased blood pressure
- Less sleep
- Less fatigue
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Term
What are the behavioral effects of psychomotor stimulants in low doses? |
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Definition
- Increased motor stimulation
- Increased alertness/vigilance
- Improved mood and anxiety
- Increased performance
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Term
What are the behavioral effects of psychomotor stimulants in high doses? |
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Definition
- Intense feelings of euphoria followed by mild depression
- Increased stereotyped behavior
- MA psychosis (paranoid schizophrenia)
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Term
Can psychomotor stimulants be harmful? Can they be lethal? |
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Definition
Yes, chronic consumption can produce:
- neurotoxicity
- Stroke
- MA psychosis
- Depression
- Criminial behavior
They can cause cardiovascular death/heart failure |
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Term
What is the mechanism of action for cocaine? |
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Definition
It blocks the dopamine reuptake inhibitor so it cannot get back in |
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Term
What is the mechanism of action for amphetamines? |
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Definition
They cause VMATs to release dopamine out of vesicles into the cytoplasm, and then reverse the flow of the reuptake pump |
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Term
How do psychomotor stimulants affect the mesolimbic dopamine system? |
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Definition
They are powerful and primary reinforcers because they increase dopmaine levels so much. They create feelings of euphoria and well-being. Plus, increased doses create increased liking. |
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Term
What are acute tolerance effects of psychomotor stimulants? |
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Definition
The mood enhancing effects of cocaine are subject to acute tolerance, but this disapates rapidly. |
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Term
What sensitization effects are seen with psychomotor stimulants? |
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Definition
There are stereotyped behaviors and psychotic behaviors that appear more frequently with repeated doses. |
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Term
What type of depression effects are there with psychomotor stimulants? |
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Definition
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Term
What are the two current topics we covered with psychomotor stimulants? |
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Definition
- Use in schools by kids who don't need them
- Bath salts- hallucinations and violence
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Term
What are the three methylxanthine examples we know? |
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Definition
- Caffeine
- Theophylline (ued to treat asthma)
- Theobromine (what is bad for dogs)
Coffee, tea, cocoa (from cacao) |
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Term
What are the bodilly effects of methylxanthines? |
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Definition
- Delay sleep onset and/or decreases overall sleep
- Increase urination
- Headache relief/onset
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Term
What are the behavioral effects of methylxanthines? |
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Definition
- Increase feelings of alertness, confidence, and motivation for work
- Improves attention and speeds reaction times
- May improve mood and make tasks seem easier
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Term
Can methylxanthines be harmful or lethal? |
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Definition
They can...
- increase anxiety or jitteriness
- Can cause panic attacks
- Accelerates bone loss in postmenopausal women
Can be lethal but in stupidly high doses (30-80 cups of coffee) can lead to convulsions and death
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Term
What is the mechanism of action for methylxanthines? |
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Definition
They block A1 and A2a adenosine receptors, making out body think there is less adenosine in our system |
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Term
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Definition
When there are low adenosine levels in our body, our brain interprets that to be alert and wakeful. When there are high levels, we feel sleepy and tired. |
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Term
How are nicotine and tobacco relate? |
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Definition
Nicotine is the drug while tobacco is the plant where it comes from |
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Term
What are some specific examples of ways nicotine can be administered? |
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Definition
- Cigarettes, pipes, chew, cigars
- The patch
- Gum
- E-cigarettes
- Lozenges
- Hookah
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Term
What are the bodily effects of nicotine? |
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Definition
- Increased heart rate and blood pressure
- Stimulates activity in the bowel
- Stimulates vomiting center
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Term
What are the behavioral effects of nicotine? |
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Definition
- Perceived as pleasurable
- May increase attention and accuracy on some tasks
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Term
What are the harmful effects of nicotine? |
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Definition
- Heart disease
- Chronic obstructive pulmonary disease (bronchitis and emphazema)
- Cancer
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Term
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Definition
- Death due to OD would have to come from an administration of pure nicotine
- With long-term exposure it clearly is (cancer and what not)
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Term
What is the difference between mainstream, sidestream, and third hand smoke? |
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Definition
- Mainstream: what the smoker exhales
- Sidestream: what comes from the burning cig (more dangerous)
- Third hand: toxins that are left in the air after the smoker is finished smoking
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Term
What type of ACh receptors does nicotine activate? What do they do? |
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Definition
Nicotinic
They are ionotropic receptors, and binding of nicotine causes them to open (only need 1, but can have 2) |
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Term
What does long-term exposure of nicotine do to receptors? |
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Definition
It desensitizes them so that ACh can bind to them but they will still remain closed |
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Term
How does nicotine affect the mesolimbic pathway? |
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Definition
It indirectly causes VTA to release DA to the NA by binding to the nicotinic receptors in the VTA causing increased firing probability |
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Term
What are the withdrawal effects of nicotine? |
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Definition
- Increased eating and weight gain
- Inability to concentrate
- Increased awakenings from sleep
- Craving
- Mood changes: anxiety, anger, aggresion, depression, irritability
- Decreased working memory
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Term
What is the genetic contribution that is linked with nicotine addiction? |
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Definition
Nicotine is broken down by CYP2A6- individuals with higher rates of addiction have decreased activity of the CYP2A6 enzyme are less likely to become addicted |
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