Table 4.

Normal values of lysosomal enzymes in cultured CVS and cultured AF/POC

Enzymes	Enzyme activity (Sheth et al. 2014)
	Cultured CVSa	Cultured AF/POCa
α-Iduronidase	19.27–93.4	85.5–156.3
β-Glucuronidase	26.5–149.6	50.07–197.1
β-Glucosidase	115–409	118–584.8
Sphingomyelinase	13.3–18.8	17.0–69.4
Hexosaminidase-total	4,507–15,473.2	4,487.0–16,286.2
β-Galactosidase	150–644	296–1,195

^aAll values are in nmol/h/mg protein