Figure 4
From: Noninvasive monitoring of bilirubin photoisomer excretion during phototherapy

Correlation and efficiency of conversion of urinary LR to ZZ-B in the presence of apoUnaG following a 90-min blue light exposure. Single linear regression analysis of the increase in ZZ-BR concentration and decrease in LR concentration in urine samples during blue light exposure in the presence of apoUnaG. ΔZZ-BR is defined as the difference in ZZ-BR concentration before and after blue light exposure. ΔLR is defined as the absolute difference in LR concentration before and after blue light exposure. A strong positive correlation between ΔZZ-BR and ΔLR was observed. ZZ-BR, ZZ-bilirubin; LR, lumirubin.