论文部分内容阅读
甲状旁腺素(PTH)的生理功能是维持细胞外液钙的浓度和防止低血钙,其分泌受到血清Ca~(2+)的严密调节.只要体内血清Ca~(2+)低于正常水平就可引起PTH分泌显著增加.随血清Ca~(2+)恢复正常可通过负反馈作用而抑制甲状旁腺以降低PTH的分泌.
The physiological function of parathyroid hormone (PTH) is to maintain the concentration of extracellular calcium and to prevent hypocalcemia, and its secretion is tightly regulated by serum Ca 2+ .As long as serum Ca 2+ in the body is lower than normal Level can cause a significant increase in PTH secretion.With the return of serum Ca ~ (2+) normal can inhibit the parathyroid by negative feedback to reduce PTH secretion.