Fetal Fibronectin (fFN)

Haihuwar haihuwa tana nufin cutar da ke tattare da katsewar ciki bayan makonni 28 zuwa 37 na ciki. Haihuwar gabanin haihuwa shine babban sanadin mutuwa da nakasa a yawancin jariran da ba a gada ba. Alamomin haihuwar haihuwa sun hada da nakudar mahaifa, canjin fitar da fitsari, zubar jinin al'ada, ciwon baya, rashin jin dadin ciki, matsi da matsi.

A matsayin isoform na fibronectin, Fetal Fibronectin (fFN) wani hadadden glycoprotein ne mai nauyin kwayoyin halitta kusan 500KD. Ga mata masu juna biyu masu alamun haihuwa da alamun haihuwa, idan fFN ≥ 50 ng/ml tsakanin 0 rana na makonni 24 da kwanaki 6 na makonni 34, haɗarin haihuwa kafin haihuwa yana ƙaruwa a cikin kwanaki 7 ko kwanaki 14 (daga ranar da aka gwada samfurin daga ɓoyayyen ɓoyayyen mahaifa). Ga mata masu juna biyu da ba su da alamun haihuwa da alamun haihuwa, idan fFN ta kasance tsakanin 0 kwana na makonni 22 da kwanaki 6 na makonni 30, za a sami karuwar haɗarin haihuwa a cikin kwanaki 6 na makonni 34.