Evaluation of the activity of sturgeon cartilage peptides and preparation of ointments
Sturgeon cartilage has a wide range of applications as it is rich in biologically active substances such as chondroitin sulphate and protein.In this study,the safety evaluation of sturgeon cartilage peptide in NIH/3T3 and C2C12 cells was conducted,and the results showed that sturgeon cartilage peptide did not induce apoptosis and necrosis in NIH/3T3 and C2C12 cells compared to the blank control,which provides an in vitro experimental basis for the transdermal drug delivery of sturgeon cartilage peptide.Further evaluation of the scavenging activity of sturgeon cartilage peptides against the 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)(ABTS)and 2,2-diphenyl-1-picrylhydrazyl(DPPH)free radicals showed that sturgeon cartilage peptides have strong antioxidant activity.A stable sturgeon cartilage peptide ointment containing 7％sturgeon cartilage peptide was prepared and analysed for its transdermal absorption in mouse skin.This experiment was approved by the Animal Ethics Committee of the Institute of Materia Medica,Chinese Academy of Medical Sciences(approval number:00007684).It was found that the 12-hour cumulative release of sturgeon cartilage peptide ointment reached 92％.In this study,we further analyzed the ability of sturgeon cartilage peptide ointment to inhibit ear swelling in mice after xylene-induced inflammation.The sturgeon cartilage peptide ointment showed significant anti-inflammatory activity compared to the matrix group and the control group.In conclusion,the present study clearly demonstrated that sturgeon cartilage peptide has good safety and antioxidant activity,and the prepared sturgeon cartilage peptide ointment provides an experimental basis for further application of sturgeon cartilage peptide as well as the study of transdermal drug delivery.
sturgeon cartilage peptideantioxidantanti-inflammatoryointmenttransdermal drug delivery
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