正性调节 meaning in English

am lt
positive regulation

The cell proliferation was observed with flow cytometer and mtt colorimetric test
Atra明显拮抗了雌激素对细胞增殖的正性调节作用。
The protein nucleic acid complexes were identified by autoradiography for 48 h . the psg5heo and igfbp - 6 promoter pcat vectors were transfected into cos - 7 cells with iipofectamin2000 ; these cos - 7 cells where treated with 1 jxm e2 , with lonm tcdd and with both lonm tcdd and 1 jxm e2 , individually ; the cat protein was examined by cat - els a . results : the congenital skeletal defects in fetal rats were induced with 10 - 15ug / kg tcdd or with 100 - 140 mg / kg ra with dosage - dependence effect . the igfbp - 6 mrna in rat calvaria tissue and mc - 3t3 - el cells were increased with tcdd and ( or ) ra , whereas the cell proliferation and igf - 2 mrna in mc - 3t3 - el cells was decreased in the status of e2
结果: tcdd在大鼠胚胎发育时期具有骨骼致畸作用，骨骼发育畸形包括:内翻足、脊柱裂、颅面骨发育缺陷、无尾畸形等;随着tcdd浓度的升高( 10一15林扩kg ) ，致畸率明显上升( 14 . 7 %一24 . 6 % ) ; tcdd和ra联合用药可以增强对大鼠骨骼发育的致畸效应; e :对成骨细胞内igf一2基因有正性调节作用，对igfbp一6基因有负性调节作用， tcdd可以抑制e :对细胞内xgf一2和igfbp一6的调节作用。