ArticleCurrent issues in molecular biology2026
The Effect of Soy Protein-Phycocyanin Concentrate Complex Treatment on Biomarkers of HDL Functional Properties in Male Wistar Rats.
Article in Current issues in molecular biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Due to improper nutrition, high-density lipoproteins (HDLs) can be subjected to structural changes, acquiring a dysfunctional phenotype. Therefore, research efforts are currently focused on improving HDL functionality despite its blood level. The aim of this study was to evaluate the effect of phycocyanin concentrate (as part of a food matrix) on the functional properties of HDL. Male Wistar rats were fed a high-fat diet containing 2% cholesterol for 113 days. Experimental animals were treated with 30 and 300 mg/kg b.w. of phycocyanin concentrate mixed with soy protein isolate. Serum and hepatic cholesterol and triglyceride levels, and the content of protein, triglycerides, choline-containing phospholipids, malondialdehyde, sphingosine-1-phosphate, and paraoxonase-1 in HDL fractions were assessed. The decrease in protein in HDL particles is characteristic for dysfunctional phenotype of these particles. Phycocyanin concentrate diet prevented the depletion of protein in HDL particles, regardless of the dosage. The functionality of HDL is associated with paraoxonase-1 activity, which inhibits lipid peroxidation in lipoproteins. Our results have shown a significant increase in the level of paraoxonase-1 in HDL particles in groups treated with phycocyanin. HDL particles become more enriched with triglycerides with the development of hyperlipidemia. Triglycerides in HDL particles and in serum decreased by two times in animals receiving 30 mg/kg b.w. of phycocyanin. The MDA content in HDL particles decreased in all animals receiving a high-fat diet with the addition of 2% cholesterol. The introduction of 300 mg/kg of phycocyanin returned this indicator to the values of the Control group. Thus, biomarkers of dysfunctional changes in HDL in rodent hyperlipidemia models may be a useful tool for assessing lipid metabolism disorders. Also, the results confirm the potential ability to use phycocyanin concentrate as part of lipid-lowering products.
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