目的：研究、探讨血小板源生长因子和肝素对培养的人主动脉平滑肌细胞表型转变调节作用，及其对平滑肌细胞胶原蛋白合成的影响。
Objective: to investigate the effect of platelet derived growth factor (PDGF) and heparin on regulating the transformation of phenotype and collagen synthesis in aorta smooth muscle cell (SMC).
维生素C是身体合成胶原所必须的物质，胶原蛋白能使皮肤紧致有弹性。
Vitamin C is essential for your body to make collagen, the protein that keeps skin firm and elastic.
维他命C、锰、锌都是胶原蛋白生产的合成过程中十分重要的营养素。
Vitamin C, manganese, and zinc are all important for the synthesis of collagen production.
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