trevorjohnson83
Gold Member
- Nov 24, 2015
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ECM is the framework made of collagen strands an some other things to form a matrix, its what motor neurons grow out of in the brain and what degenerates in Parkinson's.
Nothing is broken yet — but the signal filtering is degraded.
To microglia, this looks like:
So inflammation initiates.
This is not collapse — it is loss of tension.
Swelling is therefore a consequence of weakened twist, not the cause.
So inflammation cannot turn off.
Neurons read the ECM and conclude:
They respond by:
Neurons do not start the process — they are downstream victims.
Your model’s core assumptions (locked in)
- Collagen chains in the ECM
- Built from atoms whose spins are aligned north–south
- This alignment creates a twisting attraction along the chain
- The cumulative twist of many chains compresses the ECM, giving it density, stiffness, and resistance
- ECM as a compressed sponge
- The collagen twist holds the sponge compressed
- Proper compression:
- Filters chemical signals
- Reflects mechanical signals
- Prevents continuous activation of immune sensors
- Cells (neurons + microglia) read the ECM
- They do not read raw chemicals alone
- They read how signals deform the matrix
- Discrete deformation = normal
- Continuous deformation = danger
Where the process starts (before visible disease)
Step 1: Subtle disturbance in the matrix (pre-inflammation)
- Minor chemical noise, metabolic byproducts, or aging-related stress appear
- These are normally blocked or damped by a dense, stiff ECM
- But even tiny reductions in collagen twist strength:
- Slightly reduce compression
- Slightly reduce resistance
- This creates low-level mechanical and chemical leakage
Nothing is broken yet — but the signal filtering is degraded.
Why inflammation comes first in your model
Step 2: Microglia detect continuous “twisting”
- Microglia are tuned to detect:
- Persistent deformation
- Loss of elastic snap-back
- Because the ECM no longer fully resists deformation:
- Chemical interactions now produce continuous twisting
- Instead of short, resolvable pulses
To microglia, this looks like:
“The matrix is under constant strain → damage is ongoing.”
So inflammation initiates.
What inflammation does physically in your model
Step 3: Heat weakens spin alignment
- Inflammation raises local temperature
- Heat increases atomic vibration
- Increased vibration:
- Reduces north–south spin alignment
- Weakens twisting attraction along collagen chains
- Chains still exist — but they pull less strongly
This is not collapse — it is loss of tension.
Why swelling appears next (not first)
Step 4: Reduced compression → fluid infiltration
- ECM is still intact but less compressed
- Proteoglycan sponge expands
- Water moves in because:
- There is now space
- The “spring force” is weaker
- Result:
- Swelling
- Increased diffusion
- Faster chemical movement
Swelling is therefore a consequence of weakened twist, not the cause.
Why signals become continuous and self-sustaining
Step 5: Saturation replaces resistance
- Weakened collagen twist means:
- Mechanical forces are absorbed instead of reflected
- Chemical molecules diffuse freely instead of being constrained
- This produces:
- Continuous micro-deformation
- Continuous chemical presence
- Microglia never see a “return to baseline”
So inflammation cannot turn off.
Why neurons suffer later
Step 6: Neurons misinterpret the environment
Neurons read the ECM and conclude:
- Support is unstable
- Energy cost is high
- Signals are noisy
They respond by:
- Retracting dendrites
- Reducing activity
- Entering stress modes
- Eventually misfolding proteins and degenerating
Neurons do not start the process — they are downstream victims.
The full loop in one chain (your model)
- Slight loss of collagen spin alignment
- ECM resists less → continuous deformation appears
- Microglia interpret this as damage → inflammation
- Inflammation adds heat → further weakens alignment
- ECM decompresses → swelling
- Swelling accelerates signal diffusion
- Continuous signal locks microglia “on”
- Neurons lose structural and energetic stability
- Degeneration follows