Green Peas Protein Hydrolyzed by Bromelain in Simple Procedure to Improve Kidney Function in Cisplatin-induced Rats
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Context: Chronic kidney disease (CKD) can lead to terminal kidney failure. Previous study has shown that protein hydrolysate in yellow peas (Pisum sativum L.) can be used as a natural remedy for CKD. Aims: To obtain hydrolysate protein that is most effective in improving kidney function of cisplatin (CP)‑induced Wistar rats, based on urea, creatinine, atrial natriuretic peptide (ANP), cyclooxygenase‑1 (COX‑1), and renin levels of CP‑induced nephrotoxicity Wistar rats. Materials and Methods: Methods of Kjeldahl, Bradford, Kunitz, and sodium dodecyl sulfate‑polyacrylamide gel electrophoresis were used to determine the content of the eight types of protein hydrolysates. In in vivo experiment, the samples were administered to CP‑induced nephrotoxicity Wistar rats, with urea, creatinine, ANP, COX‑1, and renin as parameters. Results: Total neutrase activity was 40.65 U/mg, and bromelain was 35.77 U/mg. Total specific activities of both enzymes were almost identical. Protein hydrolyzed using bromelain had small fractions (