Matsuzawa T, Hatsugai M, Moriguchi K
Laboratory of Biology, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan.
J Vet Med Sci. 1992 Dec;54(6):1157-63. doi: 10.1292/jvms.54.1157.
Histochemical study on the changes of the aminopeptidase activities in rat testes after surgically-induced cryptorchidism was conducted comparing them with the histochemical changes in regenerated hepatic cells of the partially hepatectomized rat liver. Methionine-aminopeptidase in Leydig cells gradually increased after cryptorchid was induced, whereas the enzyme activity in regenerated hepatic cells decreased. These histochemical observations were coincident with the data obtained by enzyme assay. The present study has indicated that in the rat cryptorchid testis the increase of methionine-aminopeptidase activity was caused by hyperplastic Leydig cells.
对手术诱导隐睾症后大鼠睾丸中氨肽酶活性变化进行了组织化学研究，并将其与部分肝切除大鼠肝脏再生肝细胞中的组织化学变化进行比较。诱导隐睾症后，睾丸间质细胞中的蛋氨酸氨肽酶逐渐增加，而再生肝细胞中的酶活性降低。这些组织化学观察结果与酶活性测定所获得的数据一致。本研究表明，在大鼠隐睾睾丸中，蛋氨酸氨肽酶活性的增加是由增生的睾丸间质细胞引起的。
