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Vitamin A Dimerization (None)
- Target
- None
- Molecular classification
- Chemical Reaction, Non-enzymatic process
01
Overview
Vitamin A dimerization is a non-enzymatic chemical reaction in which two molecules of vitamin A (retinol or its derivatives) react together to form a dimer. The main byproduct is A2E, which accumulates in the RPE and contributes to lipofuscin formation and retinal degenerative diseases.
- Other names
- Retinol DimerizationVitamin A Cycle Byproduct FormationA2E Formation
02
Mechanism of action
Slowing the rate of vitamin A dimerization through kinetic isotope effects.
03
Biological functions
Visual cycle byproduct formationLipofuscinogenesis
04
Disease associations
Stargardt diseaseAge-related macular degenerationBest diseaseRetinal degeneration
05
Safety considerations
Potential disruption of the visual cycleLong-term effects of inhibiting vitamin A dimerization are unknown
06
Interacting drugs
C20-D₃-vitamin A
07
Biomarkers
A2E levels in RPE cellsLipofuscin accumulation
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