{
    "title": "Ar-Turmerone - Stimulates regeneration of brain cells",
    "inventor_name": null,
    "publication_year": 2014,
    "device_name": "Ar-Turmerone",
    "goal": "Promote regeneration of damaged brain tissue by stimulating neural stem cell proliferation and neuronal differentiation.",
    "problem_addressed": "Neurodegenerative diseases and brain injury requiring neuronal repair.",
    "concept_summary": "Ar-turmerone, a fat-soluble terpene from turmeric, was shown to increase neural stem cell (NSC) proliferation and promote differentiation into neurons both in cultured rat cells and in adult rat brains after intracerebroventricular injection. The effect was demonstrated using cell counts, Ki-67 mRNA expression, PET imaging with [18F]FLT, and histological analysis, indicating its potential as a neuroregenerative drug candidate.",
    "detailed_description": null,
    "category": "Medical & Dental Technologies",
    "principles": [
        "Induction of neural stem cell proliferation",
        "Promotion of neuronal differentiation",
        "Dose-dependent biological response"
    ],
    "scientific_domains": [
        "Neuroscience",
        "Cell Biology",
        "Pharmacology"
    ],
    "mechanisms_of_action": [
        "Activation of NSC proliferation pathways (e.g., Ki-67 up-regulation)",
        "Enhancement of neurogenesis in subventricular zone and hippocampus"
    ],
    "materials": [
        "Ar-turmerone",
        "Turmeric volatile oil",
        "Petroleum ether",
        "Ethyl acetate",
        "Methanol",
        "Water",
        "Silica gel"
    ],
    "energy_sources": [],
    "inputs": [
        "Ar-turmerone (various concentrations)",
        "Primary fetal rat neural stem cells",
        "Adult rats (intracerebroventricular injection)"
    ],
    "outputs": [
        "Increased number of NSCs",
        "Higher count of differentiated neuronal cells",
        "Neurogenesis markers (DCX-positive neuroblasts)",
        "PET imaging signal indicating proliferation"
    ],
    "claimed_performance": "Dose-dependent increase in NSC proliferation (p < 0.01) and significant neurogenesis in vivo (p < 0.05).",
    "experimental_evidence": "In vitro cell culture assays showing NSC proliferation and differentiation; in vivo rat study with intracerebroventricular injection of ar-turmerone, PET imaging ([18F]FLT) and histology confirming mobilization of NSCs in SVZ and hippocampus.",
    "replication_status": "Single study reported; no independent replication mentioned.",
    "keywords": [
        "Ar-turmerone",
        "Neural stem cells",
        "Neurogenesis",
        "Turmeric",
        "Brain regeneration",
        "Stem cell proliferation"
    ],
    "related_technologies": [
        "Stem cell therapy",
        "Neuroregenerative pharmacology",
        "PET imaging for cell proliferation"
    ],
    "controversy_level": "low",
    "confidence_score": 0.9,
    "practicability_score": 0.6,
    "fringe_score": 0.2,
    "evidence_strength": 0.7,
    "risk_score": 0.2,
    "trl_estimate": 5,
    "source_urls": [
        "http://www.greenmedinfo.com/blog/how-whole-turmeric-heals-damaged-brain-1",
        "http://www.stemcellres.com/content/5/4/100"
    ],
    "organizations": [
        "Stem Cell Research & Therapy journal",
        "Korean Patent Office (KR20150036936)",
        "Chinese Patent Office (CN104478686)"
    ],
    "applications": [
        "Therapeutic agent for neurodegenerative disorders",
        "Adjunct treatment for brain injury recovery",
        "Potential health-food supplement for stress-related neuronal protection"
    ],
    "limitations": [
        "Evidence limited to rodent models",
        "No human clinical data reported",
        "Delivery method (intracerebroventricular injection) not practical for routine use"
    ],
    "open_questions": [
        "Efficacy and safety in human patients",
        "Optimal dosing and delivery route",
        "Long-term effects on brain function and behavior"
    ],
    "red_flags": [],
    "evidence_quotes": [
        "\"Ar-turmerone increased dose-dependently the number of cultured NSCs, because of an increase in NSC proliferation (Pa<a0.01).\"",
        "\"In vivo, after i.c.v. injection of ar-turmerone, proliferating NSCs were mobilized from the subventricular zone (SVZ) and the hippocampus of adult rats, as demonstrated by both [18F]FLT-PET and histology (Pa<a0.05).\"",
        "\"Both in vitro and in vivo data suggest that ar-turmerone induces NSC proliferation.\"",
        "\"The non-polar solvent soluble extract of Curcuma longa L. or aromatic turmerone isolated therefrom has a strong neuronal damage-preventive effect.\"",
        "\"Purity of the reference substance is greater than 99%, thus meeting requirements of a traditional Chinese medicinal chemical reference substance.\""
    ]
}