Gough A K, Peel N F, Eastell R, Holder R L, Lilley J, Emery P
Department of Rheumatology, University of Birmingham, United Kingdom.
Ann Rheum Dis. 1994 Jan;53(1):14-7. doi: 10.1136/ard.53.1.14.
To establish if urinary excretion rates of the collagen crosslinks pyridinoline and deoxypyridinoline, which are known to be elevated in established rheumatoid arthritis (RA), are useful markers of bone loss in this disease.
Eight hour urine collections on all patients and 52 controls were performed, and the rates of pyridinoline and deoxypyridinoline excretion were measured. Bone mineral density (BMD), by dual energy x-ray absorption, and full laboratory and clinical assessments were performed.
The rates of excretion of pyridinoline and deoxypyridinoline were significantly increased in patients compared with controls (p < 0.001). Pyridinoline excretion was associated with increased disease activity (ESR/CRP) but not disability (HAQ score/Functional Grade), and correlated with BMD loss at the femoral neck (p < 0.01).
The excretion of collagen crosslinks may be useful as markers of bone and cartilage turnover in patients with RA.
确定在已确诊的类风湿关节炎(RA)中已知会升高的胶原交联物吡啶啉和脱氧吡啶啉的尿排泄率是否为此疾病中骨质流失的有用标志物。
对所有患者和52名对照者进行8小时尿液收集,并测量吡啶啉和脱氧吡啶啉的排泄率。通过双能X线吸收法测量骨矿物质密度(BMD),并进行全面的实验室和临床评估。
与对照者相比,患者的吡啶啉和脱氧吡啶啉排泄率显著升高(p < 0.001)。吡啶啉排泄与疾病活动度增加(血沉/CRP)相关,但与残疾程度(健康评估问卷评分/功能分级)无关,且与股骨颈骨密度降低相关(p < 0.01)。
胶原交联物的排泄可能作为类风湿关节炎患者骨和软骨周转的标志物。