Alcohol Flashcards

1
Q

What is the structure of Alcohol?

A

Check the image

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2
Q

What is the standard drink?

A

Hard Liquor

A way of standardizing such that we can a conservation on how much alcohol we are drinking

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3
Q

What influences the effects of alcohol?

A

Gender difference

Full vs empty stomach

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4
Q

What are the effects of alcohol on male and female?

A

Female has less gastric metabolism

(50% less gastric Alcohol dehydrogenase (ADH))

More alcohol is absorb in the body

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5
Q

What are the effects of the influence of alcohol on a full vs empty stomach?

A

The amount of Ethanol in the blood is greater when consuming alcohol alone vs eating with a meal.

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6
Q

Fill in the blank for the alcohol metabolism pathways

Alcohol ———-(a)————->Acetaldehyde (this is an _______(a.1)_______ and it is _____(a.2)________, in normal human beings it is quickely removed. If it is not removed people will experience Asian Glow.) ——————-(b)—————> Acetic Acid ———-oxidation reaction———-> Carbon dioxide + Water + Energy. (Which mean Alcohol is a carbohydrate)

A

a. Alcohol dehydrogenase (ADH) (rate-limiting enzyme)
a. 1. intermediate
a. 2. toxic
b. Acetaldehyde dehydrogenase(ALDH)

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7
Q

What are the Effects of Alcohol?

What are the effects of alcohol-dependent on the low -moderate dose?

A

Dependent on dose

Low-moderate dose

Act as depressant

Mild sedation and sleepiness

loss of inhibition/ increase risk-taking

motor incoordination

mild stimulant

loss of emotional control (happens in a consistent way)

Impaired judgment

GI tract: irritate the stomach lining

Renal system: more dilute urine

Decreased BP, HR, and RR

Vasodilation (feel warm but lossing heat)

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8
Q

What are the effects of alcohol-dependent on the high -moderate dose?

A

Magnification of above effect

memory loss /black outs

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9
Q

What is the effect of alcohol when it is dose-dependence?

A
  1. 08% –can not drive
  2. 15% Nausea/Vomitting
  3. 35% loss of consciousness
  4. 5x legal limit –Overdose
  5. 45% Respiatory depression
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10
Q

What happens when you develop acute tolerance?

(The minute you start drinking you induce tolerance)

A

As seen in the graph, when someone feels intoxicated their blood concentration is relatively low, but you wait a couple of hours when you become sober your blood conceneration is much higher

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11
Q

To figure out the mid/long term tolerance of alcohol?

A
  1. 1 drink and measuring BAC –> the blood concentration is high
  2. Give 1 drink a day for 7 days
  3. Now give 1 drink and measure the Blood concentration the BAC is much lower
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12
Q

What is the acute dependence on alcohol?

A

Hangover (24 hr)

Nausea/vomiting

Fatigue

Thirst

headache

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13
Q

What are the long term/chronic use of dependence?

A

Begins within a couple of hours –last several days

shakes

increase BP, HR, RR

anxiety

sweating

nausea /vomiting

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14
Q

What is the delirium Tremens?

A

Acute withdrawal syndrome after long term use (also see with barbiturates and benzodiazepines ) for depressant drug

Delrium -acute confusional state

very diorentented –> hallucibnation

anxiety –> panic attack

seizure

autonomic distress - increase temp, BP, HR

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15
Q

Long Term high dose use

What is Wernicke-Korsakoff Syndrome-Brain Damage effects?

A

Tremors and motor problems

Visual nystagmus

(Damage in the motor of the brain)

Memory dysfunction

Malnutrition

Poor eating habits

Poor food absorption through GI tract

Lead to significant vitamin and trace elements deficiencies

Inhibiting particularly Thiamine (B1-metabolism of Glucose) –> neuronal cell death

Inhibition of Glial EAAT1 and 2

Glutamate excitotoxicity and apoptotic cell death

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16
Q

What are the effects of alcohol on the liver?

A

Two options the liver can become to Non-Al. Fatty Liver Disease (NAFLD) excess glucose turn to fate and store in the liver.

Cirritoic liver –> scar liver –can’t recover

17
Q

What is the mechanism of action?

A

Alcohol is lipo/hydrophobic can get everywhere

can affect the membrane make it more fluidity and structure

and can interact with specific receptors

18
Q

What ate the effect on dopamine pathways?

A

Increase firing rates of DA-VTA cells which increase DA in nucleus accumbent (reward pathway)

Decrease synaptic DA extracellular and metabolites

DA drops with the same time course that withdrawal symptoms appear

19
Q

What are the effects of Alcohol on opiate pathways?

A

The reward is mediated by alcohol activation opiate circuits

Acute effects

increase release of endogenous opiates in the brain and blood

increase production of endogenous opiates

Chronic use

Decrease endorphin levels

20
Q

What is the Opioid compensation hypothesis?

A
21
Q

What are the teratogenic effects of alcohol?

A

This substance that leads to birth defects

FASD –> Spectrum Disorders

Symptoms

IQ= 68

Low birth weight

Irritable/hyperactive

Attention deficits

Hypertensive

Neurological problems

Cardiovascular problems

Distinct facial malformation

Abnormal development of fingers and toes