Component
Brain parenchymal exosome delivery
Distribution of injected exosomes into brain tissue.
1 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What acts on it
Intraventricular injection experiments showed greater brain-parenchymal delivery of FOLR1-positive than FOLR1-negative exosomes in mice.
Experimental context and source evidence
- experimental_model
- Human FOLR1 in rat choroid-plexus cells, human CSF, mouse injections
- exposure
- Intraventricular exosome administration
- limitations
- Injection bypasses entry from blood; does not prove all brain folate follows this route.
- nutrient_topic
- Folate and folic acid research collection; topical membership is not evidence of a direct dietary effect. · Folate (vitamin B9)
- organism
- Mus musculus receiving human-FOLR1-associated exosomes
- plain_language
- Receptor-bearing vesicles reached brain tissue in this experiment.
- primary_references
- [grapp2013] Choroid plexus transcytosis and exosome shuttling deliver folate into brain parenchyma (2013). https://pubmed.ncbi.nlm.nih.gov/23828504/ DOI: 10.1038/ncomms3123
- tissue_or_cell_type
- Brain parenchyma
Folate and folic acid: mechanisms, deficiency and nutrient interactions (2026-09-17) · lines 219–229
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Human FOLR1 in rat choroid-plexus cells, human CSF, mouse injections · source_derived_draft · unverified_draft
### folate-fralpha-exosome-brain-entry Intraventricular injection experiments showed greater brain-parenchymal delivery of FOLR1-positive than FOLR1-negative exosomes in mice. Condition category: normal nutrient_topic: Folate and folic acid research collection; topical membership is not evidence of a direct dietary effect. plain_language: Receptor-bearing vesicles reached brain tissue in this experiment. organism: Mus musculus receiving human-FOLR1-associated exosomes tissue_or_cell_type: Brain parenchyma experimental_model: Human FOLR1 in rat choroid-plexus cells, human CSF, mouse injections limitations: Injection bypasses entry from blood; does not prove all brain folate follows this route. exposure: Intraventricular exosome administration [grapp2013] Choroid plexus transcytosis and exosome shuttling deliver folate into brain parenchyma (2013). https://pubmed.ncbi.nlm.nih.gov/23828504/ DOI: 10.1038/ncomms3123
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.