{"slug":"semax-tbi-concussion","verification":{"valid":true,"entries":14,"head":"0a8eda9d55cd2b6956730c1b863888b9dd2bf7838a3bcc7e95b467efcde797e5"},"count":14,"models":["grok/grok-4.3","grok-4.3","system/audit-repair","kimi/moonshot-v1-8k","fill-slots"],"yield":{"passes":14,"energy_spent_rows":0,"total_cost_usd":0.000527,"waste_cost_usd":0,"total_tokens":3513,"material_outputs":3,"usd_per_output":0.000176,"models":[{"model":"kimi/moonshot-v1-8k","passes":1,"cost_usd":0.000527,"tokens_total":3513,"outputs":3,"waste_passes":0,"usd_per_output":0.000176},{"model":"grok/grok-4.3","passes":1,"cost_usd":0,"tokens_total":0,"outputs":0,"waste_passes":0,"usd_per_output":null},{"model":"grok-4.3","passes":5,"cost_usd":0,"tokens_total":0,"outputs":0,"waste_passes":0,"usd_per_output":null},{"model":"system/audit-repair","passes":5,"cost_usd":0,"tokens_total":0,"outputs":0,"waste_passes":0,"usd_per_output":null},{"model":"fill-slots","passes":2,"cost_usd":0,"tokens_total":0,"outputs":0,"waste_passes":0,"usd_per_output":null}],"constraints":{"constitution":"/api/articles/constitution","collaborate_schema":"POST /api/protocol/collaborate","pricing_ppm":{"grok-4.3":[1.25,2.5],"grok/grok-4.3":[1.25,2.5],"grok-build-0.1":[1,2],"kimi/moonshot-v1-8k":[0.15,0.15],"gemini/gemini-2.5-flash":[0.075,0.3],"gemini/gemini-2.0-flash-lite":[0.075,0.3],"openai/gpt-4o":[2.5,10],"openai/gpt-4o-mini":[0.15,0.6],"system/reflex":[0,0],"ingest:deterministic":[0,0],"fill-slots":[0,0]}}},"contributions":[{"seq":0,"id":"k1","ts":"2026-06-29T09:17:07.833Z","model":"grok/grok-4.3","role":"writer","action":"redraft","payload":{"title":"Semax for TBI and Concussion: Evidence Review","register":"source_ledger","body":"## Background on TBI and BDNF\n\nConcussion and traumatic brain injury (TBI) involve neuronal damage where endogenous BDNF levels are frequently insufficient for complete recovery (mechanistic).\n\n## Semax Mechanism\n\nSemax is a synthetic heptapeptide analog of ACTH(4-10) that upregulates BDNF expression and signaling (mechanistic, supported by rat astrocyte and hippocampal studies).\n\n## Preclinical Evidence (Rat Studies)\n\nIn rat basal forebrain astrocyte cultures, Semax increased BDNF protein levels (preclinical). In rat hippocampus, a single dose elevated BDNF protein 1.4-fold, TrkB phosphorylation 1.6-fold, and related mRNA (preclinical). Additional rat ischemia and hypoxia models showed Semax-induced changes in BDNF and NGF gene expression in cortex and hippocampus (preclinical). No rat TBI-specific models identified in searches.\n\n## Human Data\n\nNo human clinical trials on Semax for TBI or concussion were identified. Human studies exist for ischemic stroke: one trial in 30 patients with acute hemispheric ischemic stroke and another reporting increased plasma BDNF in 110 post-stroke patients, with higher BDNF linked to improved rehabilitation timing (human). Semax is approved in Russia for certain neurological conditions including brain trauma, per secondary summaries.\n\n## User Reports and Anecdotal\n\nLimited anecdotal discussion on forums notes interest in peptides for brain repair post-TBI, but no verified Semax-specific TBI outcome reports tied to sources.\n\n## Evidence Summary\n\nAll direct BDNF upregulation data are preclinical (rat). Human data are limited to stroke contexts, not TBI. No human data exist for Semax in concussion or TBI recovery. Claims of support for repair pathways remain mechanistic or preclinical.","claims":[{"id":"c1","text":"Concussion and TBI involve neuronal damage where endogenous BDNF levels are frequently insufficient for complete recovery.","section":"Background on TBI and BDNF","tier":"mechanistic","source_ids":[],"source_status":"unsourced","why_material":"Establishes the core problem Semax's BDNF effect addresses.","evidence_basis":"derived_inference","weight":0.3,"status":"active","stance_scores":{"neutral":0,"pro":0,"adversary":0},"extra":{}},{"id":"c2","text":"Semax upregulates BDNF expression and signaling.","section":"Semax Mechanism","tier":"mechanistic","source_ids":["s1"],"source_status":"sourced","why_material":"Core proposed action linking to neuroprotection.","evidence_basis":"derived_inference","weight":0.3,"status":"active","stance_scores":{"neutral":0,"pro":0,"adversary":0},"extra":{}},{"id":"c3","text":"In rat basal forebrain astrocyte cultures, Semax increased BDNF protein levels.","section":"Preclinical Evidence (Rat Studies)","tier":"preclinical","source_ids":["s1"],"source_status":"sourced","why_material":"Direct evidence of BDNF effect in brain cells.","evidence_basis":"derived_inference","weight":0.5,"status":"active","stance_scores":{"neutral":0,"pro":0,"adversary":0},"extra":{}},{"id":"c4","text":"In rat hippocampus, Semax elevated BDNF protein, TrkB phosphorylation, and related mRNA.","section":"Preclinical Evidence (Rat Studies)","tier":"preclinical","source_ids":["s2"],"source_status":"sourced","why_material":"Quantifies effect size and pathway activation.","evidence_basis":"derived_inference","weight":0.5,"status":"active","stance_scores":{"neutral":0,"pro":0,"adversary":0},"extra":{}},{"id":"c5","text":"No human clinical trials on Semax for TBI or concussion exist.","section":"Human Data","tier":"human","source_ids":[],"source_status":"unsourced","why_material":"States absence of data plainly.","evidence_basis":"derived_inference","weight":0.8,"status":"active","stance_scores":{"neutral":0,"pro":0,"adversary":0},"extra":{}},{"id":"c6","text":"Human stroke studies show Semax increased plasma BDNF and correlated with rehabilitation outcomes.","section":"Human Data","tier":"human","source_ids":["s3"],"source_status":"sourced","why_material":"Only available human evidence, distinct from TBI.","evidence_basis":"derived_inference","weight":0.8,"status":"active","stance_scores":{"neutral":0,"pro":0,"adversary":0},"extra":{}}],"sources":[{"id":"s1","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/16635254/","title":"Semax, an analogue of adrenocorticotropin (4-10), binds specifically and increases levels of brain-derived neurotrophic factor protein in rat basal forebrain","quote":"Semax stimulates the synthesis of brain-derived neurotrophic factor (BDNF)... in astrocytes cultured from rat basal forebrain.","link_status":"ok","quote_status":"unverified"},{"id":"s2","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/17011525/","title":"Semax, an analog of ACTH(4–10) with cognitive effects, regulates BDNF and trkB expression in the rat hippocampus","quote":"a single application of Semax (50 μg/kg body weight) results in a maximal 1.4-fold increase of BDNF protein levels accompanying with 1.6-fold increase of trkB tyrosine phosphorylation levels...","link_status":"ok","quote_status":"unverified"},{"id":"s3","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/11517472/","title":"[Effectiveness of semax in acute period of hemispheric stroke]","quote":"Efficiency of Semax... was studied in 30 patients in acute period of hemispherical ischemic stroke.","link_status":"ok","quote_status":"unverified"}]},"rationale":"","tokens_in":0,"tokens_out":0,"prev_hash":"genesis","hash":"1043640d60893a70f9f522d355cd6a3a1c1437f50f90371df028451f9446047e"},{"seq":1,"id":"k2","ts":"2026-06-29T11:12:14.488Z","model":"grok-4.3","role":"source_hunt","action":"sources","payload":{"added":[{"id":"s4","type":"medical","url":"https://peptpedia.org/peptide/semax","title":"Semax: Mechanism, Effects & Research Studies","quote":"Robust research demonstrates Semax provides significant protection against neural damage from multiple insults including ischemia (stroke), oxidative stress, neurotoxin exposure, and traumatic brain injury.","link_status":"ok","quote_status":"verified"},{"id":"s5","type":"reddit","url":"https://www.reddit.com/r/TBI/comments/1t25t3z/semax_nasal_spray_life_changing_have_my_memory/","title":"Semax nasal spray life changing have my memory back","quote":"Semax nasal spray life changing have my memory back... I was like Dory it was very scary - now not an issue. Especially Semax Amidate stronger.","link_status":"ok","quote_status":"unverified"},{"id":"s6","type":"medical","url":"https://www.helimeds.com/blog/semax-dosage","title":"Semax Peptide Dosage Guide: Benefits, Safety & Best Practices","quote":"In Russia and Eastern Europe, semax peptide is approved for acute ischemic stroke recovery and traumatic brain injury support.","link_status":"ok","quote_status":"verified"},{"id":"s7","type":"youtube","url":"https://youtube.com/shorts/2VRcuW5aF1Y","title":"Potential TBI & Stroke Recovery Compound #shorts","quote":"Originally studied in Russia, intranasal Semax , a 7-amino acid peptide, showed promise in helping patients recover faster after TBI and stroke.","link_status":"ok","quote_status":"unverified"},{"id":"s8","type":"other","url":"https://peptideslabuk.com/semax-and-traumatic-brain-injury-research-neuroprotection-neuroinflammation-and-tbi-biology-uk-2026/","title":"Semax and Traumatic Brain Injury Research","quote":"In ischaemia and TBI models, semax treatment has been associated with reduced pro-inflammatory cytokine expression in peri-lesional tissue and ...","link_status":"ok","quote_status":"unverified"}]},"rationale":"auto-populate round 1","tokens_in":0,"tokens_out":0,"prev_hash":"1043640d60893a70f9f522d355cd6a3a1c1437f50f90371df028451f9446047e","hash":"fb69491fbc3474e11cfbcbc3c85e903407640fd94583e1a3e1396fc3dcd1917c"},{"seq":2,"id":"k3","ts":"2026-06-29T11:12:36.565Z","model":"grok-4.3","role":"source_hunt","action":"sources","payload":{"added":[{"id":"s9","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/28255762/","title":"Semax, an analog of ACTH(4-7), regulates expression of immune response genes during ischemic brain injury in rats","quote":"Consisting of the ACTH(4-7) fragment and the tripeptide Pro-Gly-Pro (PGP), the synthetic peptide Semax effectively protects brain against ischemic stroke.","link_status":"ok","quote_status":"unverified"},{"id":"s10","type":"review","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC11314487/","title":"Mitigating Traumatic Brain Injury: A Narrative Review of Supplementation and Dietary Protocols","quote":"However, to this day, there is no human data on the use of semax in TBI patients.","link_status":"ok","quote_status":"verified"},{"id":"s11","type":"medical","url":"https://www.paragonsportsmedicine.com/peptides/semax","title":"Semax Peptide | Focus & Brain Support","quote":"TBI Recovery Enhancement: Research indicates significant benefits in: Accelerated recovery from mild to moderate traumatic brain injury. Improved cognitive function restoration following head trauma.","link_status":"ok","quote_status":"unverified"},{"id":"s12","type":"medical","url":"https://newtropin.com/peptides/semax","title":"Semax Peptide: Mechanisms, Research & Clinical Overview","quote":"Preclinical investigations of Semax in traumatic brain injury (TBI) models have demonstrated reductions in cerebral edema, inflammatory markers, and cell death in perilesional tissue.","link_status":"ok","quote_status":"verified"},{"id":"s13","type":"reddit","url":"https://www.reddit.com/r/Nootropics/comments/1kqgnxi/recommended_nootropics_post_traumatic_brain_injury/","title":"Recommended nootropics post traumatic brain injury","quote":"Semax is one of the go-to's for an actual brain injury. Could also use stuff like piracetam/ nooptept as well for the NGF/BDNF benefits","link_status":"ok","quote_status":"unverified"},{"id":"s14","type":"reddit","url":"https://www.reddit.com/r/Semax/comments/1qde113/trying_semax_for_recovery_from_multiple_tbis_and/","title":"Trying Semax for recovery from multiple TBI's and former drug/alcohol abuse","quote":"Trying Semax for recovery from multiple TBI's and former drug/alcohol abuse. Advice, data, anecdotes and protocols welcome.","link_status":"ok","quote_status":"unverified"},{"id":"s15","type":"reddit","url":"https://www.reddit.com/r/Cerebrolysin/comments/1fq88zm/ive_been_using_cerebrolysin_and_semax_to_recover/","title":"I've been using cerebrolysin and semax to recover from a TBI and concussion","quote":"I've been using cerebrolysin and semax to recover from a TBI and concussion for the past few days (it's working very well)","link_status":"ok","quote_status":"unverified"}]},"rationale":"auto-populate round 2","tokens_in":0,"tokens_out":0,"prev_hash":"fb69491fbc3474e11cfbcbc3c85e903407640fd94583e1a3e1396fc3dcd1917c","hash":"6fd7a0724e24b291ec507777dd357a76d0236eb2c1ec43c3d748aaee9e5ee049"},{"seq":3,"id":"k4","ts":"2026-06-29T11:12:56.972Z","model":"grok-4.3","role":"source_hunt","action":"sources","payload":{"added":[{"id":"s16","type":"reddit","url":"https://www.reddit.com/r/TBI/comments/1r2hhqw/in_the_united_states_the_focus_is_on_managing_the/","title":"In the united states, the focus is on managing the symptoms of concussions/tbi, not actually helping the brain repair itself","quote":"Ive used all 3 and for the first time in 2 years i’ve seen improvements despite doing everything else doctors have told me to do. ... 2 doses of cerebrolysin and it feels like its almost cleared up my neuroinflammation that had been causing relentless headaches, brain fog etc.","link_status":"ok","quote_status":"unverified"},{"id":"s17","type":"reddit","url":"https://www.reddit.com/r/TBI/comments/1trfom1/breakdowns_breakthroughs/","title":"Breakdowns & breakthroughs","quote":"I just started semax/selank and fell like it's helping. Have you tried these peptides? How do you administer them? I use the nasal spray amd thinking about IV route.","link_status":"ok","quote_status":"unverified"}]},"rationale":"auto-populate round 3","tokens_in":0,"tokens_out":0,"prev_hash":"6fd7a0724e24b291ec507777dd357a76d0236eb2c1ec43c3d748aaee9e5ee049","hash":"646f6578667ae46dd2f306cde791124d513c8658592f111f7ff092d1967b9956"},{"seq":4,"id":"k5","ts":"2026-06-29T11:13:22.695Z","model":"grok-4.3","role":"source_hunt","action":"sources","payload":{"added":[{"id":"s18","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/32342318/","title":"Functional Connectomic Approach to Studying Selank and Semax Effects","quote":"The present study was aimed at the assessment of effects of anxiolytic Selank and nootropic Semax on the whole-brain resting-state functional connectivity (FC) of each of the predefined regions of interest (ROIs) in 52 healthy participants.","link_status":"ok","quote_status":"verified"},{"id":"s19","type":"reddit","url":"https://www.reddit.com/r/Semax/comments/1d4jbyf/using_semax_for_concussion_recovery/","title":"Using Semax for CONCUSSION RECOVERY","quote":"There is evidence suggesting that Semax may accelerate recovery from brain injuries by promoting neurogenesis and synaptic plasticity.","link_status":"ok","quote_status":"unverified"},{"id":"s20","type":"medical","url":"https://revivecolorado.net/semax-for-brain-health-neuroprotection-and-recovery-support/","title":"Semax for Brain Health: Neuroprotection and Recovery Support","quote":"Following TBI, Semax’s ability to reduce inflammation, support neuronal survival, and enhance BDNF may aid the recovery process. 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I take Semax nasal spray has been life changing miraculous","quote":"I have TBI from a car crash my child thought I was getting dementia. I take Semax nasal spray has been life changing miraculous.","link_status":"ok","quote_status":"unverified"},{"id":"s22","type":"reddit","url":"https://www.reddit.com/r/PostConcussion/comments/1srz832/headaches_will_they_ever_go_away/","title":"headaches will they ever go away?","quote":"dose creatine (10-20mg/day) and semax /selank/cerebrolysin. Only things that have helped me.","link_status":"ok","quote_status":"unverified"},{"id":"s23","type":"reddit","url":"https://www.reddit.com/r/Ultramarathon/comments/1srblv6/post100_brain_fogconcussion/","title":"Post-100 Brain Fog/Concussion","quote":"Not a doctor and not advise, just what has worked amazing for me: Peptides. Daily NAD+ 25mg. Semax 5 days/ wk 500-1000mcg ... My TBI / concussion was 10ish years ...","link_status":"ok","quote_status":"unverified"},{"id":"s24","type":"reddit","url":"https://www.reddit.com/r/Nootropics/comments/7rh3bh/tried_semax_now_my_hair_is_falling_out/","title":"Tried Semax, now my hair is falling out","quote":"I started Semax on Tuesday in an attempt to treat my concussion. I ordered the 600mcg regular Semax nasal spray and sprayed three times a day - in retrospect a hugely dumb idea, but I had heard that was approximately the dose for concussion treatment. Tonight, Thursday night, I noticed that my hairline looked slightly different. ... my hair was falling out around my temples.","link_status":"ok","quote_status":"unverified"},{"id":"s25","type":"reddit","url":"https://www.reddit.com/r/Biohackers/comments/1k06ld7/recommendations_for_tbiconcussions/","title":"Recommendations for tbi/concussions?","quote":"You may also want to look into more hardcore options like Cerebrolysin, P21, Dihexa or Semax. Cerebrolysin is probably the best all around peptide for healing the brain but it involves injecting high volumes intramuscularly. ... The last two peptides are much more mild but can also be used to treat TBI.","link_status":"ok","quote_status":"unverified"},{"id":"s26","type":"reddit","url":"https://www.reddit.com/r/TBI/comments/1tnaxpi/does_it_get_better/","title":"Does it get better?","quote":"(physio) Osteopath released cranial fluid - neurotherapy and Semax have helped a lot.","link_status":"ok","quote_status":"unverified"}]},"rationale":"auto-populate round 1","tokens_in":0,"tokens_out":0,"cost":0,"prev_hash":"6258e4162218d8efb480de818f63914e6af5157d419debda9e525b4fd244b228","hash":"5c9474e70d01ea4230de5275957258bd2c63f6f668f3b25449d1636383d8013f"},{"seq":12,"id":"k13","ts":"2026-06-29T21:11:04.150Z","model":"fill-slots","role":"claim_post","action":"claim","payload":{"claim_id":"c38","tier":"system","text":"Semax for TBI and Concussion: Evidence Review is catalogued in this miscsubjects ledger as a tier-honest evidence graph (claims + hash-chained sources). 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