passages.id: split_5_test_1316_passage
passages.type: progene_text
passages.text: Because it has been reported that non - 22 - kDa GH isoforms might be partly responsible for short stature and growth retardation in children , the aim of this study was to compare the impact of both 22 kDa and 20 kDa GH on GH receptor gene ( GH receptor / GH binding protein ( GHR / GHBP ) ) expression .