The relationship between the relative contents of 5-hydroxytryptamime (5-HT) and its receptor and age in days of postnatal rat was studied by using immunohistchemistry and in situ quantitative analysis.

• 为研究大鼠颌下腺5-羟色胺及其受体的相对含量与日龄的关系，用免疫组织化学法结合原位定量，测定了大鼠颌下腺5-羟色胺及其受体免疫反应产物的相对含量。