Progesterone eia kit

Participant blood was collected at each visit in four 10 ml EDTA tubes and were immediately centrifuged at 4◦C for 30 min. The serum was then aliquoted into 2 ml microcentrifuge tubes, snap frozen on dry ice, and immediately stored in a −80◦C freezer. The blood samples we chose for analysis were from women from the Johns Hopkins Prospective cohort who had data for at least one antepartum blood draw and one postpartum visit with psychological data (N = 31). Participants whose blood was chosen for analysis did not differ by demographic characteristic or psychiatric diagnosis from those whose blood was not chosen. Blood was analyzed with the following kits: Allopregnanolone EIA kit from Arbor Assays LLC (Ann Arbor, MI, USA) Cat 3 KC44-H1, Progesterone EIA kit from Alpco (Salem, NH, USA) catalogue # PROHU-E01, Estradiol Alpco Elisa kit catalogue number 11ESPHU-E 1. All sample runs passed quality control by generating low coefficient of variance percentages (CV%) among replicate control samples. Data values represent the average of two technical replicates per individual.

Participant blood was collected at each visit in four 10ml EDTA tubes. Blood samples were non-fasting, and collection times were arranged at the convenience of the participant. All occurred during the working day (9:00 am to 5:00 pm). Samples were immediately centrifuged at 4 degrees C for 30 minutes. The plasma was then aliquotted in 2 ml microcentrifuge tubes, snap frozen on dry ice, and immediately stored in a −80° freezer. Blood was analyzed with the allopregnanolone EIA kit from Arbor Assays LLC Cat 3 KC44-H1 and progesterone EIA kit from Alpco catalogue # PROHU-E01. All samples were run in duplicate and the coefficient of variation (CV) among samples was <10%.