NRG1 and polycystic ovary syndrome: There are 28 differentially expressed genes namely KIAA0040,CCDC3, CXCL12, SLITRK6, ANKFN1, ATP8B1, LRRTM4,ROBO2, EPHA6, GPAT3, PDLIM5, HHIP, EPHA5, NDNF,SLC27A6, FGF10, PLA2G7, ADGRF5, AHR, HGF, WNT2, NRG1,ANGPT2, FREM1, OGN, PAPPA-AS1, PAGE4 and GABRA3were identified between both the groups, i.e. obese womenwithout PCOS and obese women with PCOS with the adjusted pvalueof 0.05 and FC value of 0.06.