Zhongshiduqing (Shandong) Biotech Co., Ltd.

Xiping Zhang

Jiuxun Zhang

Wei Wei

Xuejun Zhang

Mingzhan Tian

Zhao Zhang

Jie Li

Zheng Zhang

Lizhu Niu

Zhongli Pei

Shuai Gu

A pea-derived peptide with a muscle-building effect and a preparation method thereof, and a drug and use, are disclosed. A pea protein is subjected to enzymatic hydrolysis, and five polypeptides with muscle-building effect are obtained by separation as separate peptide fragments. In an in vitro aging skeletal muscle cell assay, changes are analyzed in a gene expression level of regulatory pathways related to skeletal muscle cell proliferation and differentiation, apoptosis and autophagy, and protein synthesis and degradation. In addition, animal experiments are conducted to study the muscle-building effect and a corresponding mechanism of the pea-derived peptide. This shows that the five polypeptide sequences have a significant muscle-building effect, usable as a polypeptide drug for the treatment of sarcopenia.

Pea-derived peptide with muscle-building effect and preparation method thereof, and drug and use

Provided is an earthworm protein peptide for preparing a medicine for treating a thrombotic disease. The earthworm protein peptide is any one selected from a group consisting of Leu-Val-Thr-Leu-Gly-Asn-Glu (SEQ ID NO.: 1), Leu-Leu-Ala-Pro-Pro (SEQ ID NO: 2), Leu-Leu-Pro-Ala-Pro (SEQ ID NO: 3) and Thr-Val-Ala-Pro-Phe (SEQ ID NO: 4). The earthworm protein peptide can significantly inhibit the thrombin activity, thus achieving the anticoagulant effect. In vivo, the earthworm protein peptide has a significant inhibitory effect on carrageenan-induced rat tail thrombosis; and in vitro and in vivo studies of rats with thrombus, the earthworm protein peptide provided by the present invention shows good anticoagulant effects. The earthworm protein peptide has effects of thrombosis inhibition, thrombolysis, anticoagulation and fibrinolysis promotion, and can effectively prevent and treat thrombotic disease.

Application of earthworm protein peptide in preparation of medicine for preventing and/or treating thrombotic disease

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Shandong, China

Xiping Zhang