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Plasma levels of carboxy terminal propeptide of type I procollagen and pyridinoline cross-linked telopeptide of type I collagen in healthy school children. 1998

T Kikuchi, and N Hashimoto, and T Kawasaki, and S Kataoka, and H Takahashi, and M Uchiyama
Department of Paediatrics, Niigata University School of Medicine, Asahimachi, Japan.

The aim of this study was to reveal the relationship of the plasma levels of the carboxy terminal propeptide of type I procollagen (PICP) and the pyridinoline cross-linked carboxyterminal telopeptide domains of type I collagen (ICTP) to age and height velocity (HV), and to compare PICP and ICTP levels in those who have not reached their final height with those who have. PICP and ICTP levels were measured by RIA in 271 healthy children (161M, 110F) aged from 10 to 15 y. The HV was calculated from their health check-up cards. The subjects were divided into two groups in this study: the final height (FH) group whose HV was <1.0 cm/y, and the non-final height (NFH) group whose HV in the last year was > or =1.0 cm/y. PICP and ICTP levels almost paralleled the values of age-related changes of HV. Furthermore PICP and ICTP levels significantly correlated with HV. PICP and ICTP levels of the FH group were higher than those of adults previously reported. The values will be useful as reference for healthy children and growth disorder. Before reaching final height, PICP and ICTP can be useful makers of not only bone turnover but also of linear growth. Bone turnover rate is still increasingly active just after linear growth has been completed, and then it become similar to the levels of adults.

UI MeSH Term Description Entries
D008297 Male Males
D010446 Peptide Fragments Partial proteins formed by partial hydrolysis of complete proteins or generated through PROTEIN ENGINEERING techniques. Peptide Fragment,Fragment, Peptide,Fragments, Peptide
D011347 Procollagen A biosynthetic precursor of collagen containing additional amino acid sequences at the amino-terminal and carboxyl-terminal ends of the polypeptide chains. Protocollagen,Procollagen Type M
D011863 Radioimmunoassay Classic quantitative assay for detection of antigen-antibody reactions using a radioactively labeled substance (radioligand) either directly or indirectly to measure the binding of the unlabeled substance to a specific antibody or other receptor system. Non-immunogenic substances (e.g., haptens) can be measured if coupled to larger carrier proteins (e.g., bovine gamma-globulin or human serum albumin) capable of inducing antibody formation. Radioimmunoassays
D001827 Body Height The distance from the sole to the crown of the head with body standing on a flat surface and fully extended. Body Heights,Height, Body,Heights, Body
D001835 Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. Body Weights,Weight, Body,Weights, Body
D001846 Bone Development The growth and development of bones from fetus to adult. It includes two principal mechanisms of bone growth: growth in length of long bones at the epiphyseal cartilages and growth in thickness by depositing new bone (OSTEOGENESIS) with the actions of OSTEOBLASTS and OSTEOCLASTS. Bone Growth
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D003094 Collagen A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH). Avicon,Avitene,Collagen Felt,Collagen Fleece,Collagenfleece,Collastat,Dermodress,Microfibril Collagen Hemostat,Pangen,Zyderm,alpha-Collagen,Collagen Hemostat, Microfibril,alpha Collagen
D005260 Female Females

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