Effects of 900 megahertz electromagneti̇c fi̇eld on growth plate for rats duri̇ng adolescent

Purpose: In this study, our aim is to determine the probable effects of EMF's on epiphysial growth plate in adolescent period for determining EMF's effects on adolescent skeleton development and preventing the problems that might be stem from those effects in adultry period. Material/Method: Rats are randomly divided into three equal groups. Any implementation is not applied to first group which is specified as control group (K). Rats are subjected to EMF effect (E) for one hour at same the time of every day. Sham groups rats are kept in bell glass every day for one hour without subjecting to EMF effects. At the end of the experiment, sacrificed rats' leg's knees are amputed. From three different area, total length of epiphysis and each zone's lengths are given in terms of micrometer. Also, In three different area that are randomly chosen at each preparate, chondrocytes are identified in three different zones (dinlenme, proliferasyon ve hipertrofik) of epiphysial plate. Tunel (+) cartilage cells with brown nucleus are accepted as apopitotik and apopitotik cells are stated in terms of percentages. Findings: Despite the fact that apopitoz is observed mostly in hipertrofi layer, rats which are subjected to EMF do not have any meaningful relation in the sense of apopitos in hipertrofi layers compared to control groups. Though, meaningful changes are observed in proliferatif and dinlenme layers. When lengths between fizis layers are compared, It is observed that total lengths of fizis layers do not change with the EMF exposure. On the other hand, In dinlenme layer, meaningful changes are observed with EMF exposure. When we examine the relation between lengths of apoptoz in fizis and lengths of all layers, It is observed that as a result of EMF exposure there is no meaningful relation between total lengths of fizis layer and apopitoz. Besides, a positively and meaningful relation is observed between EMF exposure and apopitoz and layer heights. Result: As a result, EMA has some meaningful effects on some layers of fizis in the context of both apopitozis and length. Although, It is obvious that EMA causes changes on normal structure of fizis, It is complicated to determine whether these are positive or negative and studies in this area are needed to be conducted at advanced levels. Keywords: Electromagnetic field, growth plate, apopitozis, adolescent rat