enzymes


White Matter Matters [Show Notes]

Review

Disease like Alzheimer’s and dementia are grey matter issues – the creation and translation of messages are interrupted or dysfunctional.  White matter is like the power cords that are responsible for sending the signals.

White matter diseases

  • Hypomylenation – cells are created with a low amount of myelin; premature, chromosome-linked defects
    • Cell Biology review:  animal cells have a membrane and a nucleus that holds all the DNA, and cytoplasm, and then all the organelles that have different jobs – just like a self-contained factory.  Some systems can be dysfunctional and the cell still live and replicate.
  • Dysmylenation – neurodystrophy (a huge list based on what’s broken)
    • Lysosomes – stores enzymes for breakdown
    • Perioxosomes – stores enzymes for energy metabolism
    • Mitochondrial – dysfunction of energy usage
    • Amino acid metabolism dysfunction
  • Demylenation
    • Inflammatory: Multiple Sclerosis = autoimmune disease.  The brain wants the body to do something but the message doesn’t make it to the body, so the body doesn’t move or has very jerky, irregular movements.  Tests for antibodies can identify MS.  Available treatment is mostly immune suppressants.
    • Huntington’s is a genetic disease that presents in the same way.  It has a very sad prognosis and presents in females starting between the ages of 30 and 50.  Thus they have already planned a life and possibly had kids who now may have the same disease.  Genetic testing can identify Huntington’s.
    • Viral – PML (Progressive Multifocal Leukoencephalopathy); J-virus a typical virus that may mutate and go dormant in the brain.  If the immune system is lowered drastically – due to suppression or immunodeficiency diseases, this virus will wake up and attack the myelin of the neurons.
    • Acquired metabolism demyleniation (being exposed to chemicals) – “Chasing the Dragon” – refers to a technique used to keep melted pills from burning in a container (usually a spoon) while it’s being heated by a flame from underneath and the vapors are inhaled.  Drug of choice: heroin.  **DON’T DO DRUGS**
    • Hypoxic ischemic – loss of oxygen.  Examples:  asphyxiation, drowning, ischemic stroke.
    • Mechanical – compression due to injury or swelling

Call Back

Migraines are not a white matter issue, they are a brain chemistry issue.  Learn more on the Headache episode

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Music Credits:  “Radio Martini” Kevin MacLeod (incompetech.com)  Licensed under Creative Commons: By Attribution 3.0  http://creativecommons.org/licenses/by/3.0/


Liver Lesson #4: Detoxification [Show Notes]

100,000’s – get counting!

A colored sketch of a liver lobule with labeled parts.

Enzymes

The hepatocytes contains enzymes.  Enzymes are catalysts.  While a lot of processes would probably happen naturally, they would be too slow to do us any good.  Enzymes make those natural changes happen faster.

Think of an assembly line worker that does they same action over and over again on each piece being made.  That’s how enzymes work.

Things that have floated around your body and done their job (i.e. drugs, hormones), the liver brings them back in and breaks them apart into inactive parts so they can be disposed of in one of your waste systems (urine or poo).

A lot of drugs go through the liver to become active and sent out to do a job, or to be deactivated after the job is done.  You don’t want those things to stay around forever because they can become toxic.

Your liver also detoxes your body of used up hormones.  Your body produces fresh ones as you need them, so the old ones need to be gotten rid of.

The most popular job that your liver does is filtering out alcohol.  Science says an average liver can process 1 standard alcoholic drink per hour (for some people that’s longer – up to 4 hours).

Thus you have to be careful with cocktails and mixed drinks due to the different types of alcohol that get added together.  1 drink DOES NOT equal 1 glass!

Liver cleanses your blood of:

  • Drugs
  • Hormones
    • Sex hormones
    • Adrenaline
    • Cortisol
  • Alcohol

Thank your liver!!

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