Spirulina (Arthrospira platensis): C-Phycocyanin Biliprotein, NADPH Oxidase Inhibition, and Complete Bioavailable Micro-Protein

The Ancient Blue-Green Super-Plankton of Alkaline Lakes

Harvested from mineral-rich alkaline soda lakes by the Aztecs of Lake Texcoco (Tecuitlatl) and the Kanembu people of Lake Chad (Dihé), Spirulina (Arthrospira platensis) is an ancient photosynthetic cyanobacterium that has nourished human populations for centuries.

1. The Master Blue Pigment: C-Phycocyanin

• NADPH Oxidase Enzyme Inhibition: C-Phycocyanin, the brilliant azure biliprotein in Spirulina, acts as a potent selective inhibitor of intracellular NADPH Oxidase ($NOX$), shutting down the primary cellular generator of destructive superoxide radicals.
• Heme Oxygenase-1 ($HO-1$) Upregulation: Induces the protective $HO-1$ enzyme pathway in vascular endothelial cells.

2. 65% Complete Bioavailable Protein

• Contains 60% to 70% pure protein by dry weight containing all essential amino acids.
• Because Spirulina lacks rigid cellulose cell walls (possessing thin mucopolysaccharide walls instead), its protein and iron have a digestibility rate exceeding 85%.

3. References & Clinical Citations

• McCarthy, M. F. (2007). Clinical potential of Spirulina as a source of phycocyanobilin. Journal of Medicinal Food, 10(4), 566-570. [PubMed: 18158824]
• Deng, R., & Chow, T. J. (2010). Hypolipidemic, antioxidant, and antiinflammatory activities of microalgae Spirulina. Cardiovascular Therapeutics, 28(4), e33-e45. [PubMed: 20633020]

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