学術雑誌論文 Urinary Cross-linked N-terminal Telopeptide of Type I Collagen Levels of Infants with Osteogenesis Imperfecta and Healthy Infants

Yamashita, Miho  ,  Hasegawa, Kosei  ,  Higuchi, Yousuke  ,  Miyai, Takayuki  ,  Okada, Ayumi  ,  Tanaka, Hiroyuki  ,  Tsukahara, Hirokazu

70 ( 6 )  , pp.435 - 439 , 2016-12 , Okayama University Medical School
ISSN:0386-300X
NII書誌ID(NCID):AA00508441
内容記述
The urinary cross-linked N-terminal telopeptide of type I collagen (uNTx) levels in infantile osteogenesis imperfecta (OI) have not been well studied. Here we investigated the levels of uNTx in infants with OI and healthy infants. We collected spot urine samples from 30 infants with OI (male/female, 14/16; Sillence classification, I/II/III/IV: 15/3/6/6; age, 5.2±4.4 months) and 120 healthy infants (male/female, 75/45; age, 5.1±4.1 months) for the measurement of uNTx levels. The uNTx levels of the OI infants were significantly lower than those of the healthy infants (mean±SD, 1,363.7±530.1 vs. 2,622.2±1,202.6 nmol BCE/mmol Cr; p<0.001). The uNTx levels of the infants with type I OI were significantly lower than those of the age-matched healthy infants, although an overlap was observed between the 2 groups. Among the 1-month-old infants, the uNTx levels of the infants with types I, III or IV OI were significantly lower than those of the healthy infants, without overlap (1,622.5±235.8 vs. 3,781.0±1,027.1 nmol BCE/mmol Cr; p<0.001). These results indicate that uNTx levels are significantly lower in infants with OI than in healthy infants, and they suggest that uNTx might be useful as a reference for diagnosing OI.
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http://ousar.lib.okayama-u.ac.jp/files/public/5/54805/20170215120656212822/70_6_435.pdf

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