Phase 3 — Epigenetic Reprogramming

Clearing 4-HNE adducts from cellular machinery and restoring the epigenetic programs that chronic oxidative stress corrupted.

Prerequisites

This phase becomes productive after Phase 0 has restored sufficient redox capacity for autophagic machinery to function. Attempting to induce autophagy in cells where the machinery itself is 4-HNE-adducted produces incomplete autophagic flux — autophagosomes form but can't be degraded because lysosomal capacity is overwhelmed and autophagy proteins are themselves damaged.

The sequence:

1. Glutathione restoration (Phase 0) → proteasomal function recovers → small adducted proteins cleared
2. Sulforaphane (Phase 0) → Nrf2 → upregulates ATG genes → autophagy gene expression restored
3. Mitochondrial restoration (ongoing) → alpha-ketoglutarate available → TET enzymes can demethylate

Autophagy Induction — Multiple Non-Redundant Pathways

Intermittent Fasting (16:8 minimum)

mTOR suppression → ULK1 activation → autophagy induction. The most potent accessible autophagy trigger. mTOR-dependent mechanism — requires nutrient deprivation.

Spermidine — from Natto + Formulation

Mechanism: eIF5A hypusination — translation of specific autophagy gene mRNAs. This is mTOR-INDEPENDENT. Works in cells where insulin resistance has disrupted normal mTOR regulation. Wheat germ highest food concentration (~243mg/kg). Natto highest combined with fermentation. → [[Spermidine and Polyamines]]

Urolithin A — 500mg daily

PINK1/Parkin mitophagy specifically (selective autophagy of damaged mitochondria). Produced by gut bacteria from ellagitannins (pomegranates, walnuts, grape leaves in formulation). Only ~40% of people have the converting bacteria — direct supplementation bypasses this. Specifically restores mitophagy flux in adipose tissue in animal models. Critical for the adipose remodeling later.

Trehalose — 2–3g daily

TFEB nuclear translocation — the transcription factor upregulating the entire lysosomal and autophagic machinery. This is the difference between initiating autophagy (mTOR, spermidine) and expanding the cellular capacity to COMPLETE it. Many autophagy failures are failures of completion — the autophagosome forms but can't be degraded because lysosomal capacity is overwhelmed. Trehalose addresses this specifically.

Berberine — 500mg twice daily

AMPK activation → autophagy induction. Also: adipose macrophage M1→M2 polarization, adipose browning, ABCA1 upregulation (efferocytosis connection). Don't take simultaneously with NMN/NR — AMPK and mTOR pathways interact in ways that can partially cancel.

Pterostilbene — 100mg twice daily

Methylated resveratrol: better bioavailability, longer half-life, better blood-brain barrier penetration than resveratrol.

SIRT1 activation mechanism: SIRT1 is an NAD⁺-dependent histone deacetylase that specifically removes acetyl groups from H3K9 and H3K14 at pro-inflammatory gene promoters — the acetylation marks that NF-κB places to maintain inflammatory gene expression. SIRT1 reverses these marks.

The butyrate-pterostilbene synergy: Butyrate restores acetylation at ANTI-inflammatory loci. Pterostilbene/SIRT1 removes acetylation at PRO-inflammatory loci. They work from opposite directions on the histone acetylation landscape simultaneously. Neither alone is sufficient.

Sauna (if accessible)

HSP70 and HSP90 upregulation → protein quality control → chaperone-mediated autophagy of damaged proteins. The heat shock response activates a distinct protein cleanup pathway from macroautophagy. Finnish sauna research shows reduced oxidative stress markers with regular use.

Cold Exposure

Beta-3 adrenergic receptor activation → adipose-specific lipophagy → white-to-beige adipose conversion (irisin pathway). Distinct from and complementary to fasting-induced autophagy.

Active Demethylation — Restoring Anti-Inflammatory Gene Expression

This requires the full substrate set: see [[TET Enzymes]] and [[One Carbon Metabolism]].

Key supplements added in this phase:

• Methylfolate (5-MTHF) — bypasses MTHFR polymorphisms affecting ~40–60% of the relevant population
• Methylcobalamin (B12) — methionine synthase
• NMN or NR — NAD⁺ for sirtuin activity
• Calcium alpha-ketoglutarate — direct TET enzyme cosubstrate supply
• Betaine/TMG — alternative methyl donor via BHMT pathway

Connections

• [[Phase 0 - Source Control and Redox]] — prerequisite
• [[One Carbon Metabolism]] — full substrate detail
• [[NAD Pool]] — sirtuin substrate
• [[TET Enzymes]] — active demethylation machinery
• [[Epigenetic Transmission]] — what's being reversed
• [[Spermidine and Polyamines]] — key autophagy inductor