钙作为人体内一种重要宏量元素，大部分参与骨骼的构成，小部分以离子形式存在于体液和细胞内。研究发现离子钙在种群和细胞代谢调节中起着重要作用。近十几年来，随着生物化学、生物工程技术的发展，对钙在机体中作用的研究也取得了很大进展。大量资料表明多种因素引起细胞凋 Calcium, as an important macroscopic element in the human body, is mostly involved in the formation of bones and a small fraction exists in the form of ions in bodily fluids and cells. It has been found that ionized calcium plays an important role in the regulation of population and cell metabolism. In recent ten years, with the development of biochemistry and bioengineering technology, great progress has been made in the study of the role of calcium in the body. A large number of data show that many factors cause apoptosis