Butler W F, Pousty I
Histochem J. 1976 Sep;8(5):539-42. doi: 10.1007/BF01003843.
Intervertebral discs of an old sheep and a young pig were examined for the presence of cells containing the enzyme uridine diphosphoglucose dehydrogenase. In the sheep, the inner anulus had a higher proportion of active cells than the outer anulus; in the pig, there was no difference. From a consideration of cell numbers, it is suggested that there is an accumulation of glycosaminoglycans in the centre of the disc rather than an increased production rate. Notochordal cells in the pig disc contain uridine diphosphoglucose dehydrogenase and are capable of producing glycosaminoglycans.
对一只老绵羊和一头幼猪的椎间盘进行检查，以确定是否存在含有尿苷二磷酸葡萄糖脱氢酶的细胞。在绵羊中，内环纤维环的活性细胞比例高于外环纤维环；在猪中，则没有差异。从细胞数量的角度考虑，有人认为椎间盘中央存在糖胺聚糖的积累，而不是生产率的提高。猪椎间盘的脊索细胞含有尿苷二磷酸葡萄糖脱氢酶，并且能够产生糖胺聚糖。
