. Author manuscript; available in PMC: 2008 Mar 11.

Published in final edited form as: Birth Defects Res B Dev Reprod Toxicol. 2006 Aug;77(4):280–397. doi: 10.1002/bdrb.20086

Table 20.

Development of UDPGT Activity in Humans

	UDPGT activity towards substrate (nmol/min/mg protein)^a
Age	Bilirubin	Testosterone	1-Napthol
30 weeks gestation	0.05	0	0.56
30 weeks gestation with 10 weeks survival	0.4, 1	0.14, 0.85	3.0, 1.8
Full-term infants surviving 1–10 days (n = 7)	0.07±0.04	0.10±0.06	0.75±0.68
Full-term infants surviving 8–15 weeks (n = 6)	0.64±0.32	0.12±0.05	2.4±1.1
Full-term infants surviving 22–55 weeks (n = 5)	0.99±1.1	0.09±0.06	3.6±2.1
Adult males (n = 3)	0.76±0.43	0.46±0.61	7.2±2.2

Data presented as individual values or mean±SD. From Coughtrie et al. (1988).