THE DISTRIBUTION CHANGE OF THE FGF-R IN THE FLAP TRANSPLANTATIN / 解剖学报

ABSTRACT

Objective To examine the chracteristics of distribution of the FGF R before and after the flap transplantation and the influence of exogenic bFGF on the distribution of FGF R. Method Caudally based random skin flaps were raised on the backs of Wistar rats,bFGF was instilled under flaps after closure.An immunohistochemical techniques stanining method was used. Results FGF receptors distributes in the stratum basal of epidermis,the vascular endothelial cells in the dermis and hypodermis,the fibroblasts and the epithelial cells of the hair follicle and the sweat gland.In compared with preoperation,the quantity of increased gradually from the 1st day to the fifth day after operation,and the peak value is on the fifth day,it then recovered to the pre operation level on the serventh day.After applying the exogenic bFGF,the positive immunoreactive cells in the experimental group,increased remarkably from the Ist day to the 3rd day after operation in contrast with the control group.The peak value is on the 3rd day which was two days earlier than that of the control group and the peak value of the experimental group is remarkably higher than that of the control group.Conclusion\ FGF R distributes in the stratum basal of epidermis,the vascular endothelial cells in the dermis and hypodermis,the fibroblasts,and the epithelial cells of the hair follicle and the sweat gland.In compaired with pre operation,the quantity of the positive immunoreactive cells of FGF R were increased gradually from the Ist day to fifth day after operation,and the peak value is on the fifth day.After applying the exogenic bFGF,the positive immunoreactive cells of FGF receptors were increased.\;[