Decreased Plasma COMP and Increased Plasma CTX-II Levels in a Chinese Pseudoachondroplasia Family with Novel COMP Mutation

Table 1

Plasma levels of COMP and CTX-II in the affected individuals and age-matched controls.

Group		Age range	COMP (ng/ml)		CTX-II (pg/ml)
			Mean ± SD		Mean ± SD
PSACH	3	35–65		0.000		0.000
Control	9	34–64
PC	1	2.5		0.864		0.497
Control	3	2-3

Plasma levels of COMP were significantly higher in the adult control than in the controls less than three years of age, . Plasma levels of CTX-II were not different between the adult controls and the controls less than three years of age, . PC: presymptomatic carrier.