Small ariations in glycosaminoglycan content in the axial direction were obsered with the largest alues in the center, although this ariation was small compared with radial ariations.

• 轴状位上葡萄糖胺聚糖含量的微小变化可在含量最高的中心区域观察到，但是这种变化和周围区域的变化没有明显差异。