From Organelle to Collapse. Biophysical Foundations of the MRC Framework in Neurodegenerative Disease

The companion theoretical paper proposes that neurodegeneration begins as a loss of phase coherence at the cellular and network level, only later manifesting as the molecular disorganisation visible to standard diagnostics. This biophysical paper asks the harder question: what mechanism actually produces that coherence loss, and how does a local insult become a systemic collapse? We argue that the answer requires descending below the neuron to the collective of oscillating organelles that sustains it. The 40~Hz gamma rhythm that anchors cortical coherence is not a property of individual neurons; it emerges from the synchronized activity of mitochondria, endoplasmic reticulum, lysosomes and ion channels, each oscillating at slightly different frequencies and coupled through biochemical and electrical signals. When a local insult ---heavy metal accumulation, mitochondrial dysfunction, oxidative stress --- disrupts that intracellular collective, the perturbation propagates outward as a desynchronisation wave. If enough seeds ignite simultaneously, the network crosses into an avalanche regime, and the Drain Vortex Principle drives the system toward an irreversible pathological attractor. The paper develops each step of this causal chain with explicit mathematical models, falsifiable predictions, and an honest account of what is established, inferred, or speculative.