Using immunohistochemical method in the present study we examined the changes of the CGRP-LI nerve fibers in the anterior pituitary (AP) of the rat after adrenalectomy. 60 male adult rats were divided into 5 groups at random, i.e., normal, sham-operated, adrenalectomized (AdX) plus hydrocortisone, normal plus hydrocortisone and AdX groups. There were some of CGRP-LI nerve fibers sparsely and unevenly distributed in the normal rat AP. The fibers which had some varicosities and varied in their thickness could occurred either individually or in plexus. The quantity of CGRP-LI nerve fibers increased in number, length, branches and the density of the varicosities. The extent of their distribution was also enlarged. With a Leitz computer-assisted image analyzer the quantity of the CGRP-LI nerve fibers in the 5 groups was measured and the results showed that the amount of CGRP-LI nerve fibers in AdX group was significantly higher than those in all the other groups (P

The standardization of clinical laboratory information is an important part of standardization of medical infor-mation,and the critical means to realize this standardiaztion is to classify and code the clinical laboratory items.Earlier work has been done mainly in the United States,Europe and Japan.However,it develops later in China.Although we have had our standard,there are still some problems to be resolved.In this article,we retrospectively reviewed and compared the main contents,coding methods,standard form and applications,etc.in the above countries and regions,providing some ideas for improving the standardization of clinical laboratory information in China.[