Chapter 9 Flashcards
(38 cards)
EXPLAIN
What is the chemical name of the only alcohol fit for human consumption?
Ethyl Alcohol or Ethanol
DEFINE
Percentage Alcohol
aka Alcohol by volume
The amount of alcohol in grams per 100mL of solution
DEFINE
Proof of Alcohol
Percentage of alcohol x 2
DEFINE
Fermentation
When yeast consumes starch and sugars from grains or fruit to produce beer or wine
upper limit of 15% alcohol production
DEFINE
Distillation
The process of separating the alcohol from the fermented liquid
Can have alcohol content of 20-95%
DEFINE
One Standard Drink
**equivalent to 14g of 100% alcohol **
1.5oz of 40% alcohol
12oz of beer (4.5% alcohol)
5oz of wine (12% alcohol)
EXPLAIN
What is the low-risk alcohol drinking guidelines?
1 to 2 standard drinks per week
DEFINE
Heavy drinking
more than 4-5 drinks on one occasion atleast once a month in the past year
EXPLAIN
What is Wernicke-Korsakoff Syndrome?
“Alcholic Dementia”
difficulty with memory, movement, vision and coordniation
EXPLAIN
What causes Wernicke-Korsakoff Syndrome?
deficiency of B1/Thiamine due to alcohol affecting its absorption
EXPLAIN
How is blood-alcohol concentration calculated?
Grams of alcohol per 100mL of blood
EXPLAIN
What BAC is considered legally intoxicated?
0.08%
EXPLAIN
Where is alcohol metabolized?
In stomach and liver; Uses ALdehyde DeHydrogenase
EXPLAIN
How does the metabolism power of CYP2E1 change between naive drinkers and chronic drinkers?
CYP2E1 does limited metabolism in infrequent drinkers, but increases with use allowing chronic users to consume more
LIST
What are some drug interactions of Alcohol?
Aspirin + Stomach Acid Reducers: Inhibits Alcohol Dehydrogenase
Chlorpropamide + Some antibiotics: Inhibits Acetaldehyde Dehydrogenase
Acetaminophen + Some antibiotics: Metabolized by CYP2E1 (reduces its availability to metabolize alcohol)
EXPLAIN
How is alcohol excreted?
Lungs (5% consumed exhaled in pure form)
Liver
EXPLAIN
At what rate is alcohol excreted from our systems?
Eliminated at a constant rate of 1/2 oz of 100% alcohol an hour until all available enzymes are saturated
once saturated, remaining alcohol is eliminated in half lives (~4 hours)
LIST
What neurotransmitters play a role in alcohol actions?
- GABA
- Glutamate
- Endogenous Opiods
- Dopamine
- Serotonin
- Endocannabinoids
LIST
What receptor locations dictate depressing effects from alcohol?
- Cerebral Cortex
- Hippocampus
- Thalamus
LIST
What receptor locations dictate rewarding effects from alcohol?
- Nucleus Accumbens
- Ventral Tegmental Area
EXPLAIN
What is alcohol’s affect on GABAa receptors?
- Acts as a positive modulator
- Inhibits activity in hippocampus, thalamus and cerebral cortex
- Exhibits rewarding effects in nucleus accumbens
EXPLAIN
What is alcohol’s affect on glutamate receptors?
- Inhibits NMDA glutamate receptors
- Chronic use results in upregulation of NMDA receptors
EXPLAIN
What is alcohol’s affect on Calcium channels?
Inhibits vasopressin release
(go piss girl neurotransmitter)
EXPLAIN
How can chronic light consumption of alcohol be beneficial?
- Increases HDL (Benefical cholesterol)
- Reduces clots
- Reduces pro-inflammatory signalling in blood vessels (Less inflamation)
- Decrease in certain heart conditions*
*includes stroke, Ischemia, heart attack, heart disorders