Abstract
Plasma levels of follicle stimulating hormone (FSH) and luteinizing hormone (LH) were measured to know the cause of decreased testosterone secretion in testis by surgical stress. The results were as follows. (1) Plasma levels of LH tended to fall on the first post-operative day, to return to near the pre-operative level on the third post-operative day and to rise on the seventh post-operative day. (2) Change in plasma FSH levels was minimal under surgical stress with no specific tendency. (3) A slight change of plasma LH levels varied according to age groups. (4) A slight change of plasma LH levels varied according to the severity of surgical stress. The conclusion drawn from these results was that a decrease in pituitary LH played a certain role in the depression of testicular testosterone secretion caused by surgical stress. Plasma levels of follicle stimulating hormone (FSH) and luteinizing hormone (LH) were measured to know the cause of decreased testosterone secretion in testis by surgical stress. The results were as follows. (1) Plasma levels of LH tended to fall on the first post-operative day, to return to near the pre-operative level on the third post-operative day and to rise on the seventh post-operative day. (2) Change in plasma FSH levels was minimal under surgical stress with no specific tendency. (3) A slight change of plasma LH levels varied according to age groups. (4) A slight change of plasma LH levels varied according to the severity of surgical stress. The conclusion drawn from these results was that a decrease in pituitary LH played a certain role in the depression of testicular testosterone secretion caused by surgical stress. Plasma levels of follicle stimulating hormone (FSH) and luteinizing hormone (LH) were measured to know the cause of decreased testosterone secretion in testis by surgical stress. The results were as follows. (1) Plasma levels of LH tended to fall on the first post-operative day, to return to near the pre-operative level on the third post-operative day and to rise on the seventh post-operative day. (2) Change in plasma FSH levels was minimal under surgical stress with no specific tendency. (3) A slight change of plasma LH levels varied according to age groups. (4) A slight change of plasma LH levels varied according to the severity of surgical stress. The conclusion drawn from these results was that a decrease in pituitary LH played a certain role in the depression of testicular testosterone secretion caused by surgical stress. Plasma levels of follicle stimulating hormone (FSH) and luteinizing hormone (LH) were measured to know the cause of decreased testosterone secretion in testis by surgical stress. The results were as follows. (1) Plasma levels of LH tended to fall on the first post-operative day, to return to near the pre-operative level on the third post-operative day and to rise on the seventh post-operative day. (2) Change in plasma FSH levels was minimal under surgical stress with no specific tendency. (3) A slight change of plasma LH levels varied according to age groups. (4) A slight change of plasma LH levels varied according to the severity of surgical stress. The conclusion drawn from these results was that a decrease in pituitary LH played a certain role in the depression of testicular testosterone secretion caused by surgical stress. Plasma levels of follicle stimulating hormone (FSH) and luteinizing hormone (LH) were measured to know the cause of decreased testosterone secretion in testis by surgical stress. The results were as follows. (1) Plasma levels of LH tended to fall on the first post-operative day, to return to near the pre-operative level on the third post-operative day and to rise on the seventh post-operative day. (2) Change in plasma FSH levels was minimal under surgical stress with no specific tendency. (3) A slight change of plasma LH levels varied according to age groups. (4) A slight change of plasma LH levels varied according to the severity of su
