HYDROXYLATION OF COLLAGEN TYPE-I - EVIDENCE THAT BOTH LYSYL AND PROLYL RESIDUES ARE OVERHYDROXYLATED IN OSTEOGENESIS IMPERFECTA

被引:10
作者
LEHMANN, HW
RIMEK, D
BODO, M
BRENNER, RE
VETTER, U
WORSDORFER, O
KARBOWSKI, A
MULLER, PK
机构
[1] UNIV LUBECK,INST MED MOLEK BIOL,W-2400 LUBECK,GERMANY
[2] UNIV ULM,ZENTRUM KINDERHEILKUNDE,W-7900 ULM,GERMANY
[3] FREE UNIV BERLIN,KLINIKUM CHARITE,BERLIN,GERMANY
[4] UNFALLCHIRURG ORTHOPAD KLIN,FULDA,GERMANY
[5] UNIV MAINZ,ORTHOPAD KLIN,W-6500 MAINZ,GERMANY
关键词
HYDROXYLYSINE; HYDROXYPROLINE; OSTEOGENESIS IMPERFECTA;
D O I
10.1111/j.1365-2362.1995.tb01706.x
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The composition of the collagens secreted into the media of fibroblast cultures of 39 patients with osteogenesis imperfecta (OI) was the same in controls and OI cultures. An abnormal migration pattern of collagens upon SDS-PAGE was evident in one third of the cultures investigated. Lysyl and prolyl hydroxylation of HPLC-purified alpha 1(I) chains was elevated in about 60% of cultures. The degree of hydroxylation was highest in the lethal forms. The extent of lysyl and prolyl hydroxylation showed a strong correlation (r = 0.74, P < 0.001). While high levels of hydroxylation are frequently observed in OI patients, a direct correlation between lysyl of prolyl hydroxylation and fracture rate or growth retardation could not be established.
引用
收藏
页码:306 / 310
页数:5
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