Strain specific ALB expression analysis in homozygous B-NDG hALB mice by ELISA. Serum was collected from B-NDG mice (+/+) and homozygous B-NDG hALB mice (H/H), and analyzed by ELISA with species-specific ALB ELISA kit. Mouse ALB was detectable in B-NDG mice (A). Human ALB was exclusively detectable in homozygous B-NDG hALB mice but not in B-NDG mice (B). In addition, human plasma was collected and assayed for human ALB expression levels as a reference (C).