Mode II Compensation Failure in Endometriosis: A Formal Derivation of the Fibrotic Locking Threshold and Four Testable Predictions

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AI-generated summary by claude@2026-06, 2026-06-07

This paper derives a fibrotic locking threshold for endometriosis by modeling ECM stiffening and resolution saturation, predicting that antifibrotic therapy combined with reduced injury rate non-redundantly recovers lesions and preserves ovulation.

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AI-generated deep summary by claude@2026-06, 2026-06-07 · read from full text

The paper models endometriosis as a Mode II compensation failure in which compensatory fibrotic wound healing occurs but becomes consolidated toward a pathological attractor. Using a cycle-averaged differential equation that incorporates two nonlinear processes—self-amplifying extracellular matrix stiffening and resolution saturation—the authors derive a closed-form fibrotic locking threshold, ε* = ρ / [ρ + (√α + √(θ/ψ))²], above which the fibrotic attractor is the only stable state for a lesion’s current status, and they prove that both nonlinearities are required for bistability while sufficiency is established separately. They then present four testable predictions, including that anti-platelet modulation of wound initiation rate raises ε*, TGF-β3 restoration of resolution efficiency expands the recoverable basin, and the combination can be non-redundant and super-additive on locking thresholds in a fragile regime; a further structural consequence is that the proposed interventions avoid the hypothalamic–pituitary–ovarian axis and may preserve ovulation relative to hormonal suppression. This paper is centrally about endometriosis — it formally derives the fibrotic locking threshold and predictions for compensation failure mechanisms in endometriosis.

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Abstract

Endometriosis affects approximately 190 million women of reproductive age worldwide. Standard management — hormonal suppression, surgical excision, and combined oral contraceptives — controls symptoms but suppresses the reproductive axis, preventing pregnancy as a mechanism of treatment. The gynecological literature has empirically converged on combination approaches pairing injury-rate reduction with antifibrotic therapy, yet no formal account exists of why this combination is non-redundant — recovering lesions neither monotherapy can — rather than merely additive. This paper formalises endometriosis as a candidate instance of Mode II compensation failure: a regime in which a compensatory response (fibrotic wound healing) fires appropriately but its consolidation operator is misaligned toward a pathological attractor. From a cycle-averaged differential equation incorporating two documented nonlinearities — self-amplifying extracellular matrix (ECM) stiffening and resolution saturation — we derive a closed-form locking threshold ε* = ρ / [ρ + (√α + √(θ/ψ))²]: the misalignment above which, for a lesion at its current state, the fibrotic attractor is the only stable state. We prove that neither nonlinearity alone produces bistability; both are required (necessity), and sufficiency is established separately. Three testable predictions follow. (i) Anti-platelet modulation of wound-initiation rate raises ε*, slowing progression in early-stage disease. (ii) TGF-β3 restoration of resolution efficiency expands the recoverable basin. (iii) The combination is non-redundant and, in the fragile regime (ε* < 1/2), super-additive on the locking threshold — recovering lesions neither monotherapy reaches. As a structural consequence, because none of the intervention targets involves the hypothalamic–pituitary–ovarian axis, the combination preserves ovulation where hormonal suppression does not. A worked example illustrates how the ε* structure suggests separating dienogest's fibrotic benefit from its fertility cost via direct myofibroblast apoptosis induction combined with anti-platelet therapy. All predictions are falsifiable with existing or obtainable data. This paper is part of a program on formal frameworks for biological compensation. The companion framework paper is posted at DOI: 10.5281/zenodo.20515948.
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Mode II Compensation Failure in Endometriosis: A Formal Derivation of the Fibrotic Locking Threshold and Four Testable Predictions Description Endometriosis affects approximately 190 million women of reproductive age worldwide. Standard management — hormonal suppression, surgical excision, and combined oral contraceptives — controls symptoms but suppresses the reproductive axis, preventing pregnancy as a mechanism of treatment. The gynecological literature has empirically converged on combination approaches pairing injury-rate reduction with antifibrotic therapy, yet no formal account exists of why this combination is non-redundant — recovering lesions neither monotherapy can — rather than merely additive. This paper formalises endometriosis as a candidate instance of Mode II compensation failure: a regime in which a compensatory response (fibrotic wound healing) fires appropriately but its consolidation operator is misaligned toward a pathological attractor. From a cycle-averaged differential equation incorporating two documented nonlinearities — self-amplifying extracellular matrix (ECM) stiffening and resolution saturation — we derive a closed-form locking threshold ε* = ρ / [ρ + (√α + √(θ/ψ))²]: the misalignment above which, for a lesion at its current state, the fibrotic attractor is the only stable state. We prove that neither nonlinearity alone produces bistability; both are required (necessity), and sufficiency is established separately. Three testable predictions follow. (i) Anti-platelet modulation of wound-initiation rate raises ε*, slowing progression in early-stage disease. (ii) TGF-β3 restoration of resolution efficiency expands the recoverable basin. (iii) The combination is non-redundant and, in the fragile regime (ε* < 1/2), super-additive on the locking threshold — recovering lesions neither monotherapy reaches. As a structural consequence, because none of the intervention targets involves the hypothalamic–pituitary–ovarian axis, the combination preserves ovulation where hormonal suppression does not. A worked example illustrates how the ε* structure suggests separating dienogest's fibrotic benefit from its fertility cost via direct myofibroblast apoptosis induction combined with anti-platelet therapy. All predictions are falsifiable with existing or obtainable data. This paper is part of a program on formal frameworks for biological compensation. The companion framework paper is posted at DOI: 10.5281/zenodo.20515948. Files Pan_ModeII_Endometriosis_v1.pdf Files (355.1 kB) | Name | Size | Download all | |---|---|---| | md5:4ff87685ff21e73ef1a94614d31e08d1 | 355.1 kB | Preview Download | Additional details Related works - Is part of - Preprint: 10.5281/zenodo.20515948 (DOI) - Preprint: 10.5281/zenodo.20441516 (DOI) - Preprint: 10.5281/zenodo.20102071 (DOI) Dates - Created - 2026-06-03

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