Soukupová M, Hnĕvkovský P, Najbrt J
Adv Exp Med Biol. 1975;53:297-305. doi: 10.1007/978-1-4757-0731-1_24.
The absolute weight of the rat's kidney increases from 3 weeks to 3 months and from 3 months to 12 months. The relative weight decreases. The number of cells freed from the kidney by trypsinization increases. (2) After nephrectomy, the kidney weight increases in all age groups. The increase is mery high in the youngest rats, lower but still significant in the 3 month old rats and still lower in the 12 month old rats. The number of cells freed from the kidney after nephrectomy is again very high in the young and 3 month old rats, but very low in the 12 month old rats. In these animals, the cell number is lower after nephrectomy than before, and a greater vulnerability of the cells is suggested as the cause of this phenomenon.
大鼠肾脏的绝对重量从3周龄到3月龄以及从3月龄到12月龄均增加。相对重量则下降。通过胰蛋白酶消化从肾脏中释放出的细胞数量增加。(2)肾切除术后，所有年龄组的肾脏重量均增加。在最年幼的大鼠中增加幅度非常高，在3月龄大鼠中较低但仍显著，在12月龄大鼠中更低。肾切除术后从肾脏中释放出的细胞数量在年幼和3月龄大鼠中同样非常高，但在12月龄大鼠中非常低。在这些动物中，肾切除术后的细胞数量比术前低，提示细胞的更大脆弱性是这种现象的原因。
