Table 1 Pilot study biological samples
Sample type | Purpose | Maternal | Paternal | Infant | Grandmother |
|---|---|---|---|---|---|
Blood | Erythrocyte folate, haemoglobin, Vitamin B12, serum folate, inflammation marker (C-reactive protein), iron (serum ferritin and serum transferring receptor), serum 25-hydroxyvitamin D, blood pesticide, zinc and lead levels studies | Time 2 | Baseline | Birth | Baseline |
Oxytocin and cortisol levels | Time 2, 3 | ||||
Pregnancy zone protein | Time 2, 3 | ||||
Banking for biorepository | Time 2, 3 | Baseline | Birth | Baseline | |
Urine | Mercury, cadmium and arsenic study | Time 2 | Baseline | ||
Iodine study | Time 2, 4 | Baseline | Time 4 | ||
Congo dot test | Time 2, 3 | ||||
Metabolite thiosulphate | Time 4 | ||||
Banking for biorepository | Time 2, 3 | Baseline | Time 4 | Baseline | |
Faecal | Banking for biorepository | Time 3 | |||
Cheek swab | DNA | Time 3 | |||
Exhaled gas | Respiratory H2S | Time 4 | |||
Saliva | Oxytocin and cortisol levels | Time 3 |