Article 4 Female 4 Humans 4 Leptin 4 Placenta 4 Pregnancy 4 Western blotting 4 choriocarcinoma cell line 4 controlled study 4 female 4 gene expression 4 human 4 human cell 4 leptin 4 metabolism 4 placenta 4 pregnancy 4 priority journal 4 reverse transcription polymerase chain reaction 4 2 (2 amino 3 methoxyphenyl)chromone 2 2 morpholino 8 phenylchromone 2 Adult 2 BeWo cell line 2 Cell Line 2 Cell Line, Tumor 2 Estradiol 2 Estrogen Receptor alpha 2 Gene Expression Regulation, Developmental 2 Gene Silencing 2 HLA G antigen 2