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ALCOHOL vs. BRAIN. DRUNKENNESS PREVENTION. PURPOSE. Impaired memory and judgment. Why is drunkenness prevention important?. Drunk driving accidents. Crime. What will my design do to address this problem?. How does alcohol affect our brains?. Inhibit excitatory activity.

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alcohol vs brain

ALCOHOL vs. BRAIN

DRUNKENNESS PREVENTION

purpose
PURPOSE

Impaired memory and judgment

Why is drunkenness prevention important?

Drunk driving accidents

Crime

what will my design do to address this problem
What will my design do to address this problem?

How does alcohol affect our brains?

Inhibit excitatory activity

Ethanol molecule-

Uncompetitive antagonist

Glutamate

NMDA-

Ionotropic glutamate receptor

Synaptic plasticity-

Learning and memory

Ca2+

slide5
How is alcohol metabolized in the brain?

Acetyl-CoA

Acetyl-CoA synthase-2

CO2

Water

basic idea of my design
Basic idea of my design
  • Prevent ethanol from blocking the

NMDA receptor for too long

  • Alphaproteobacteria
  • Quorum sensing
  • Control alcohol concentration
  • Produce enzymes invovled in alcohol metabolism
  • Results: euphoria, but not too drunk
competing technologies
COMPETING TECHNOLOGIES

1. UCLA – dihydromyricetin (DHM)

  • Ancient herbal remedy- Hoveniadulcis
  • Rats seem sober within 15 minutes
  • Dealing with hangover anxiety
  • Never become addicted- stop rats wanting to drink

2. Yale- iomanzenil

  • Negate alcohol’s effect on the brain when taken before drinking
  • “stay sober” pill, slowly wean heavy drinkers off of alcohol

Problems?

  • Take pleasure out of drinking
  • Encourage people to drink more, damaging body tissues
the design
THE DESIGN

Quorum Sensing: Bacteria communication/ gene regulation

  • Signal molecule: AHL
  • Two genes: LuxI and LuxR
  • Luxl:
    • AHL synthase: combine AdoMet and fatty acyl ACP-> AHL
  • LuxR:
    • Transcriptional regulatory protein
    • Activated when bind with AHL

Therefore, the more AHL is produced, the more chance that R protein can bind to an AHL molecule. When a specific concentration threshold is reached, the R protein is activated and so is the transcription.

genetic devices
Genetic Devices:
  • Receptor protein that only bind to ethanol- Lush protein
  • Transcription factor activated by lush protein and controls the transcription of LuxI and LuxR protein
  • A promoter site/ activator binding site
  • RNA polymerase
  • Terminator
  • Gene sequences
    • LuxI
    • LuxR
    • CAT (catalase)
    • ALDH2 (aldehydedehydrogenase)
    • ACSS1 (acetyl CoA synthase-2)
expected results
EXPECTED RESULTS
  • Concentration threshold: 0.04%
  • < 0.04% : nothing, enjoy the euphoria 
  • > 0.04 % enzymes are produced for alcohol detoxification, keeping alcohol concentration at 0.04%
advantages
ADVANTAGES

Why is this better than the existing technologies?

  • allows you to still enjoy the pleasure of drinking
  • no memory loss or impairment in judgment
  • safer way to have fun

What benefits does it bring to the society?

  • Less alcohol crimes (40%)
  • Prevent alcoholism
potential problems
POTENTIAL PROBLEMS

What are the potential problems with your system?

  • No danger to environment, lab safety, or the security of the public
  • Mutation
  • Increased amount of alcohol consumption– harmful to other body parts

Are their inefficiencies or shortcomings of your design as compared to the existing technologies?

  • Permanent effect
  • Involves complicated process to insert

the bacteria into the brain

Are the rewards worth the risks?

  • Remove unnecessary genes
  • Improve ethanol metabolism in other organs
  • Less alcohol-induced tragedy and more fun!
testing
TESTING
  • Rats
    • Control and experimental group
    • BAC 0.04%15 bottled beer
    • “heat shock” transformation
  • Human brain cells in vitro
    • Bacteriophages
    • Add ethanol molecules till > 0.04%
  • Human in vivo
    • Bacteriophages
    • Drink till 0.04%
    • Driving simulator
    • Drink till 0.08%
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