Component
Injury in challenged mouse 661W photoreceptor-derived cells
Context-specific entity; species, compartment and exposure are stated on each claim.
2 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
Astaxanthin pretreatment reduced ROS, mitochondrial injury and apoptosis after blue-light exposure in mouse 661W cells, with PI3K/Akt-Nrf2 pathway responses.
Experimental context and source evidence
- evidence_access
- Primary abstract
- experimental_model
- Mouse 661W culture experiment.
- limitations
- Not evidence of proven human macular accumulation or clinical protection from screens.
- nutrient_topic
- Astaxanthin collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Astaxanthin
- plain_language
- The tested cells tolerated a light challenge better after pretreatment.
- primary_references
- Protective Effect of Astaxanthin on Blue Light Light-Emitting Diode-Induced Retinal Cell Damage via Free Radical Scavenging and Activation of PI3K/Akt/Nrf2 Pathway in 661W Cell Model. · 2020 · https://pubmed.ncbi.nlm.nih.gov/32722441/ · DOI 10.3390/md18080387
Astaxanthin: transport, membrane chemistry, signaling and nutrient interactions (2026-09-19) · lines 366–372
AI-assisted research curation; primary-abstract references and experimental limitations individually identified. Not publisher full text. · supports · Mouse 661W culture experiment. · source_derived_draft · unverified_draft
## astaxanthin-retina-blue-light The tested cells tolerated a light challenge better after pretreatment. Astaxanthin pretreatment reduced ROS, mitochondrial injury and apoptosis after blue-light exposure in mouse 661W cells, with PI3K/Akt-Nrf2 pathway responses. Model: Mouse 661W culture experiment. Limitations: Not evidence of proven human macular accumulation or clinical protection from screens. Evidence access: Primary abstract Protective Effect of Astaxanthin on Blue Light Light-Emitting Diode-Induced Retinal Cell Damage via Free Radical Scavenging and Activation of PI3K/Akt/Nrf2 Pathway in 661W Cell Model. · 2020 · https://pubmed.ncbi.nlm.nih.gov/32722441/ · DOI 10.3390/md18080387
Complete structured claim and evidenceAstaxanthin reduced ROS and apoptosis in high-glucose-challenged mouse 661W cells; PI3K or Nrf2 inhibition abolished the protective effect.
Experimental context and source evidence
- availability_state
- machinery_impairment Imported condition classification; unverified.
- evidence_access
- Primary abstract
- experimental_model
- Mouse photoreceptor-derived 661W cells and pharmacological inhibitors.
- limitations
- Not a human diabetic-retinopathy trial; inhibitor experiments do not establish unique direct molecular targets.
- nutrient_topic
- Astaxanthin collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Astaxanthin
- plain_language
- Blocking stress-response signaling removed protection in the retinal-cell model.
- primary_references
- Astaxanthin Protects Retinal Photoreceptor Cells against High Glucose-Induced Oxidative Stress by Induction of Antioxidant Enzymes via the PI3K/Akt/Nrf2 Pathway. · 2020 · https://pubmed.ncbi.nlm.nih.gov/32785112/ · DOI 10.3390/antiox9080729
- trigger_kind
- machinery_impairment Imported condition classification; unverified.
Astaxanthin: transport, membrane chemistry, signaling and nutrient interactions (2026-09-19) · lines 358–364
AI-assisted research curation; primary-abstract references and experimental limitations individually identified. Not publisher full text. · supports · Mouse photoreceptor-derived 661W cells and pharmacological inhibitors. · source_derived_draft · unverified_draft
## astaxanthin-retina-high-glucose Blocking stress-response signaling removed protection in the retinal-cell model. Astaxanthin reduced ROS and apoptosis in high-glucose-challenged mouse 661W cells; PI3K or Nrf2 inhibition abolished the protective effect. Model: Mouse photoreceptor-derived 661W cells and pharmacological inhibitors. Limitations: Not a human diabetic-retinopathy trial; inhibitor experiments do not establish unique direct molecular targets. Evidence access: Primary abstract Astaxanthin Protects Retinal Photoreceptor Cells against High Glucose-Induced Oxidative Stress by Induction of Antioxidant Enzymes via the PI3K/Akt/Nrf2 Pathway. · 2020 · https://pubmed.ncbi.nlm.nih.gov/32785112/ · DOI 10.3390/antiox9080729
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.