先前的研究表明,降钙素(Calitonin)除产生于甲状腺和后腮腺外,在蜥蜴和鸽子的脑、肺中也存在着降钙素样免疫反应。用免疫荧光和电镜检查证明,蜥蜴肺部的降钙素样物质分泌小粒,存在于库氏细胞(Kulchitsky Cell)中。另有研究者发现,人类支气管和细支气管上皮中存在着库氏细胞,并从人类肺中分离出降钙素物质。在慢性支气管炎患者粘液腺的腺泡中含有增多的粘液分泌细胞。作者提出,如果库氏细胞也同样增多,则慢性支气管炎患者血液中降钙素浓度将会增高。因而,作者对粘液脓性疾患患者的血浆作了 Previous studies have shown that in addition to the production of Calitonin in the thyroid gland and the parotid gland, there is also a calcitonin-like immune response in the brain and lungs of lizards and pigeons. Immunofluorescence and electron microscopy demonstrated that the calcitonin-like material in the lizard’s lung secretes small particles and resides in Kulchitsky cells. Another researcher found that there are Kurtosis cells in human bronchi and bronchioles and calcitonin is isolated from human lungs. Mucous glands in patients with chronic bronchitis contain increased mucus secretion of acinar cells. The authors suggest that if Kurt’s cells also increase, the concentration of calcitonin in the blood of patients with chronic bronchitis will increase. Thus, the authors made plasma in patients with mucinous purulent disease