Interventions mapped to cascade biology · Evidence-tiered · Sequence matters
See framework disclaimer belowThis document maps potential biological intervention targets derived from a theoretical systems-biology framework. It is not a treatment protocol, a prescription, or clinical guidance. No compound listed here should be initiated, dosed, or adjusted without direct oversight from a qualified healthcare professional familiar with the individual's full medical history. The framework is hypothesis-driven and the integrated cascade has not been validated in controlled clinical trials. Parents and caregivers: bring this document to your clinician — do not use it independently.
| Cascade Node Target | Compound / Intervention | Mechanism of Action | Typical Range / Notes | Evidence Tier |
|---|---|---|---|---|
| Upstream Immune / Neuroinflammation |
IVIG / IMIG
Intravenous / Intramuscular Immunoglobulin
|
The furthest upstream intervention in this framework. Pooled human IgG
suppresses IFN-γ, TNF-α, and IL-6 — the cytokines that drive IDO1 upregulation —
before the kynurenine pathway is activated. Addresses the inflammatory driver rather than
its downstream consequences. Meta-analysis of 27 IVIG studies in ASD (Rossignol & Frye,
2021) demonstrated large effect sizes for irritability (dʼ=0.87) and total aberrant
behaviour (dʼ=0.80). First published IMIG case report in ASD (Fourie & Armstrong,
2024) showed positive parental-rated outcomes in 6 of 7 children with level 2 ASD. See Biology of Autism — Immunoglobulin Therapy for the full mechanistic argument, IVIG vs IMIG pharmacokinetics, and trial context. |
IVIG: 0.4–2 g/kg IV; requires infusion centre, medical supervision.
High cost limits access. IMIG: 0.2 mL/kg IM monthly (Fourie protocol, 16% IgG); outpatient administration. Materials cost approximately $50 per treatment (NBI Intragam, South Africa — repricing from prior below-cost supply; comparable global product Beriglobin at $80 per dose). A fraction of IVIG cost at $10,000–$25,000 per infusion. ⚠ Specialist Oversight Required:
Immunoglobulin therapy requires immune workup (IgG subclasses, cytokine panel,
autoantibody screen) before initiation. Not appropriate without documented immune
dysregulation and specialist involvement. IMIG use in ASD is investigational —
not approved for this indication.
|
Human Case Series Meta-Analysis (IVIG) |
| NAD¹ Restoration | NMN / NR Nicotinamide Mononucleotide / Riboside |
Direct NAD¹ precursors; restore functional NAD¹ sufficiency reduced by IDO1/kynurenine pathway diversion under chronic inflammation — quinolinic acid accumulates faster than QPRT converts it, creating NAD¹ insufficiency rather than classical depletion. Supports mitochondrial biogenesis via PGC-1α. |
250–500 mg/day NMN or NR; morning dosing preferred.
⚠ Pediatric Advisory: Dosing range shown reflects adult literature. Pediatric dosing not established. Do not extrapolate from adult doses. Pediatric use only under direct medical supervision with NAD¹ metabolite monitoring where possible.
|
Early Human |
| NAD¹ / PARP Inhibition |
Niacinamide (B3) Conditional adjunct — dose ceiling critical |
Enters NAD¹ synthesis via the NAMPT salvage pathway — distinct from NMN/NR’s NRK pathway. Primary mechanistic value here is as a PARP inhibitor: PARP enzymes consume NAD¹ during DNA damage repair, and under chronic oxidative stress PARP hyperactivation is a major NAD¹ drain. Niacinamide blocks this consumption, preserving NAD¹ for SIRT1. Also has independent NF-κB suppression. Wave 1 role: Plug the PARP drain before filling the NAD¹ tank with NMN/NR. Critical: niacinamide is a SIRT1 reaction byproduct — excess niacinamide inhibits SIRT1 via product feedback. The 500 mg dose ceiling is a hard boundary protecting the central axis of this protocol. |
250–500 mg/day. Separate from NMN/NR by 2–4 hours.
⚠ Dose Ceiling — 500 mg/day Maximum
Above this threshold niacinamide accumulates as a SIRT1 reaction byproduct and directly inhibits SIRT1 — the opposite of the protocol goal. High-dose niacinamide (>1g) negates NMN/NR and resveratrol in the same stack. |
Early Human |
| SIRT1 Activation | Resveratrol trans-Resveratrol preferred |
Allosteric SIRT1 activator (STAC); deacetylates NF-κB p65 subunit → reduces IL-6, TNF-α, IL-1β; activates PGC-1α → mitochondrial biogenesis; supports CREB co-activation. ASD animal model data shows reduced oxidative stress and improved social behavior. | 100–500 mg/day; take with fat for absorption; pterostilbene (50–150 mg) offers better bioavailability and BBB penetration. | Early Human |
| SIRT1 Activation | Pterostilbene Resveratrol analog |
Dimethylated resveratrol analog with superior oral bioavailability (~80% vs ~20%) and greater lipophilicity for CNS penetration. SIRT1 activation, NF-κB suppression, mitochondrial support. Reduces neuroinflammation in animal models. | 50–150 mg/day; may be preferred over resveratrol for CNS targeting. | Animal / Preclinical |
| SIRT1 Activation | Fisetin Flavonoid / Senolytic |
Polyphenol with SIRT1-activating and senolytic properties; reduces senescent glial cells; activates AMPK/SIRT1 axis; enhances mitochondrial biogenesis and antioxidant defense; BDNF upregulation in animal models. | 100–500 mg/day; pulsed dosing (2–3 days/month) used in senolytic protocols; pediatric data absent. | Animal / Preclinical |
| SST Reduction | Stress / Metabolic Load Reduction Lifestyle, sleep, circadian rhythm |
SST release is triggered by chronic stress, metabolic strain, and inflammatory signaling. Reducing these upstream drivers lowers SST tone → partially restores AC/cAMP/PKA/CREB signaling. Addresses the SST node directly without pharmacological intervention. | Sleep optimization, circadian regularity, reducing sensory/inflammatory triggers, cortisol management. Foundational before any supplement protocol. | Human RCT |
| SST / cAMP Node | Forskolin Coleus forskohlii extract |
Direct adenylyl cyclase activator → raises intracellular cAMP independently of SST inhibition → activates PKA → CREB phosphorylation → BDNF transcription. Directly opposes SST-mediated AC suppression. Enhanced learning and synaptic plasticity in animal models. |
Low-dose 5–10 mg/day standardized forskolin. Animal data strong; human ASD trials absent.
⚠ Hemodynamic Risk — Practitioner Supervision Required
Forskolin is the only compound in this protocol with direct hemodynamic risk. As a potent adenylyl cyclase activator it lowers systemic vascular resistance and reduces blood pressure via cAMP-mediated vasodilation. Contraindicated in: Cardiac conditions (arrhythmia, heart failure, structural disease) · Hypotension · Concurrent antihypertensives or vasodilators. Required before use: Cardiovascular assessment · Blood pressure monitoring during titration · Prescribing physician oversight for all pediatric use. For parents: Never start forskolin without a doctor first checking your child's heart and blood pressure — and with ongoing monitoring throughout use. |
Animal / Preclinical |
| NF-κB / Microglia | Luteolin Flavonoid — mast cell / microglial / CD38 |
Potent NF-κB and AP-1 inhibitor; suppresses mast cell degranulation and microglial pro-inflammatory cytokine release (IL-6, TNF-α); directly suppresses SPARC expression in astrocytes; may support hevin/glypican balance. CD38 inhibition: luteolin reduces CD38 expression and activity in immune-activated cells — CD38 is the primary NAD¹ consumer during immune activation, competing directly with SIRT1 for the same substrate. This gives luteolin a dual Wave 1 role: anti-inflammatory AND NAD¹ drain reduction. Two clinical studies in ASD children show reduced TNF and IL-6 and improved irritability scores. | 100–400 mg/day luteolin (or luteolin + quercetin formulation); take with fat. Pediatric RCT data available. | Human RCT |
| NF-κB / Oxidative | Curcumin Phospholipid complex preferred |
NF-κB inhibitor; Nrf2/HO-1 activator; reduces TNF-α, IL-6, MMP-9; mitochondrial protective; modulates gut microbiota. ASD animal models show reduced oxidative-nitrosative stress and improved social behaviors. Small human ASD trials show improvement in irritability and hyperactivity. | 500–1500 mg/day as phospholipid complex (e.g., Meriva) or nanoparticle form for bioavailability; poor absorption of standard curcumin. | Early Human |
| ERβ / AC/cAMP / SST axis | Genistein Soy isoflavone / selective ERβ agonist |
Mechanistically unique in this protocol. Genistein binds ERβ with 7–8× higher affinity than ERα — and ERβ activation directly stimulates adenylyl cyclase (AC) → cAMP → PKA → CREB, the exact pathway SST suppresses from the opposite direction. This gives genistein a complementary angle no other compound in the suite shares: it works to reopen the AC/cAMP axis from the estrogen receptor side while SST-reducing interventions relieve the somatostatin brake. This mechanism is also the leading candidate for why the ASD sex ratio skews ~4:1 male-to-female — females have endogenous estrogen maintaining basal ERβ → cAMP tone that males lack. Additional mechanisms: NF-κB suppression via GPER → adenylate cyclase (quiets M1 microglia); direct cortical neuron and astrocyte protection from oxidative stress via Bcl-2 preservation and Nrf2/HO-1 activation; SIRT1 activation; mitochondrial ETC complex restoration. In a propionic acid ASD rat model (Kumar et al., 2024), genistein restored AC, cAMP, CREB, and PKA levels, reduced neuroinflammation, normalized neurotransmitter balance, and improved all behavioral outcomes measured. Developmental timing note: Evidence above applies to therapeutic use in older children and adults. Neonatal/infant dietary genistein exposure (soy formula) represents a different context and warrants separate clinical consideration. |
Therapeutic range not established in human ASD trials. Animal model efficacy at 40–80 mg/kg. Human phytoestrogen literature typically references 20–60 mg/day dietary equivalents. Use only under clinical supervision given estrogenic activity — particularly relevant in males and prepubertal children. Avoid in infants. | Animal / Preclinical |
| Omega-3 / Microglia | EPA/DHA — Omega-3 High-EPA formulation preferred |
Suppresses NF-κB-driven neuroinflammation; promotes microglial M2 (anti-inflammatory) phenotype; supports membrane fluidity for receptor function; improves BDNF levels; reduces IL-6, IL-1β. Meta-analyses show modest but consistent benefit on irritability and hyperactivity in ASD. | 1–3 g/day EPA+DHA; high-EPA formulations (EPA:DHA ≥2:1) preferred for neuroinflammation. Well-tolerated in children. | Human RCT |
| FOXO / Antioxidant | N-Acetylcysteine (NAC) Glutathione precursor |
Replenishes glutathione (GSH) — primary antioxidant depleted under FOXO suppression; modulates glutamate via cystine-glutamate antiporter (mGluR pathway); dampens microglial ROS; anti-inflammatory. RCT in ASD children showed significant reduction in irritability vs placebo. | 600–1200 mg/day in divided doses; well-studied in ASD children; generally well-tolerated. | Human RCT |
| Nrf2 / Antioxidant | Sulforaphane Broccoli sprout extract |
Activates Nrf2 → upregulates antioxidant and cytoprotective genes (HO-1, NQO1, GSH synthesis); modulates neuroinflammatory pathways; mitochondrial protective. Placebo-controlled trial in ASD adolescents showed clinically meaningful improvements in ABC and SRS subscales; scores worsened after discontinuation. | 50–150 µmol/day sulforaphane (standardized sprout extract); broccoli sprout powder variable — standardized extract preferred. | Human RCT |
| Mitochondria / PGC-1α | CoQ10 / Ubiquinol Ubiquinol form preferred |
Essential electron transport chain cofactor; supports Complex I and III activity; reduces mitochondrial ROS; improves ATP generation. Pilot studies in ASD show reduced oxidative stress markers. Ubiquinol (reduced form) preferred for absorption. | 100–400 mg/day ubiquinol; take with fat; well-tolerated. | Early Human |
| Mitochondria / ATP | Magnesium Glycinate Also: Mg-Threonate for CNS |
Required cofactor for 300+ enzymatic reactions including ATP synthesis; NMDA receptor modulator reducing excitotoxic Ca²¹ influx; supports GABAergic tone; reduces hyperexcitability and sensory sensitivity. One of the most consistently supported supplements in ASD with RCT data. | Mg glycinate 100–400 mg elemental/day; Mg-Threonate 1.5–2 g/day for CNS targeting; magnesium B6 combination also has RCT evidence in ASD. | Human RCT |
| E/I Balance / SST Reduction |
L-Theanine Green tea amino acid |
Increases GABA and glycine, shifting E/I balance toward inhibition without sedation. Glycine co-agonism at NMDA receptors supports magnesium channel block efficacy — reducing excitatory drive to open NMDA channels while magnesium blocks them. Simultaneously modulates AMPA receptor trafficking, reducing excitatory tone. Direct cortisol blunting feeds into the SST reduction arm. Synergistic with magnesium: complementary mechanisms on the same excitotoxicity target. | 100–200 mg/day. Take with magnesium for synergistic E/I effect; bedtime dosing a natural pairing. Well-tolerated across age ranges; no significant contraindications at standard doses. | Early Human |
| Gut — Barrier / Dysbiosis | Clostridium butyricum Butyrate-producing probiotic |
Produces butyrate → HDAC inhibition → epigenetic regulation; reduces gut inflammation and intestinal permeability; supports regulatory T-cell function; modulates microglial development; improves BDNF expression; directly opposes propionate excess. Emerging human studies in ASD show GI and behavioral improvements. | 1–2 billion CFU/day; typically 1–2 capsules; refrigeration required for most preparations. | Early Human |
| Gut — Barrier / LPS / Immune |
Saccharomyces boulardii Probiotic yeast — antibiotic-resilient |
Mechanistically distinct from C. butyricum. Stimulates secretory IgA (sIgA), strengthening mucosal immune defense against LPS-producing bacteria. Competitive exclusion of pathogens. Reduces intestinal permeability via tight junction upregulation (claudin-3, ZO-1). Reduces gut-derived LPS translocation through a non-butyrate pathway — complementing C. butyricum’s HDAC mechanism. Reduces IL-8 and TNF-α in intestinal epithelium. Unique advantage: antibiotic-resilient — continues working during antibiotic courses when bacterial probiotics must be paused. | 5–10 billion CFU/day. No refrigeration required. Take concurrently with C. butyricum. Can be continued during antibiotic courses unlike bacterial probiotics. | Early Human |
| Gut — Butyrate / CREB | Sodium Butyrate Short-chain fatty acid supplement |
Direct butyrate supplementation; HDAC inhibitor → increases histone acetylation, BDNF expression, and synaptic plasticity gene transcription; supports gut barrier integrity; improves microglial maturation; social behavior improvements in ASD animal models. Targets Stage 4 (gut-brain) and Stage 6 (CREB/learning). | 300–600 mg sodium butyrate/day in divided doses; enteric-coated forms reduce odor; animal data strong, human ASD trials emerging. | Animal / Preclinical |
| Gut — E/I Balance | Melatonin Sleep + circadian + antioxidant |
Most consistently effective ASD intervention for sleep; antioxidant and mitochondrial-supportive properties; reduces nocturnal cortisol → indirectly lowers SST release; improves circadian regularity. Systematic review and meta-analysis confirm efficacy for sleep in ASD. Downstream: improved sleep reduces inflammatory load across multiple cascade nodes. | 0.5–5 mg at bedtime; low-dose (0.5–1 mg) often sufficient; immediate-release preferred for sleep onset; extended-release for maintenance. | Human RCT |
| SIRT1 / Senescent Glia | Synthetic SIRT1 Activators SRT2104, SRT1720 (research-grade) |
Potent STACs with >1000x greater SIRT1 activation than resveratrol; improve mitochondrial biogenesis; reduce neuroinflammation. Early human trials for metabolic and aging conditions show safety and efficacy. No ASD-specific trials yet. High mechanistic relevance to cascade Nodes 3 and 3A–D. | Research-grade; not commercially available for clinical use. SRT2104: 0.5–2 g/day in adult metabolic trials. ASD application requires clinical trial design. | Mechanistically Plausible |
| Synapse Proteins | Hevin / SPARC Modulation Preclinical target |
Therapeutic strategies to directly increase hevin/glypican signaling or suppress SPARC at the astrocyte level would restore the synaptogenic protein balance inverted in ASD. No approved therapeutics yet; indirect support via luteolin (SPARC suppression) and NF-κB inhibition offers partial benefit. | Preclinical only. Indirect approaches: luteolin for SPARC suppression; NF-κB inhibitors to reduce A1 astrocyte conversion. Direct hevin modulation remains a research target. | Mechanistically Plausible |