出 处:《中华男科学杂志》2014年第3期257-262,共6页National Journal of Andrology
基 金:保健专项科研课题(12BJZ41);解放军总医院苗圃基金(12KMM41);解放军总医院南楼青年创新基金(NQ201210)~~
摘 要:目的:探讨老年男性血清性激素及甲状旁腺激素与骨转换生化指标的相关性。方法:收集2011年5-6月在我院常规年度体检年龄i〉60岁的老年男性465例,年龄60-93岁。测定血清卵泡刺激素(FSH)、黄体生成素(LH)、雌二醇(E2)、睾酮(T)、性激素结合球蛋白(SHBG);血清甲状旁腺激素(PTH)、25-羟化维生素D3(25(OH)D3);骨转换生化指标(I型胶原羧基末端肽:CTX;骨钙素:OC;I型前胶原氨基末端前肽:PINP);并计算游离睾酮(FT)、生物可利用睾酮(BT)、睾酮分泌指数(TSI)和游离睾酮指数(FTI);分析各指标与老年男性骨转换生化指标的相关性。结果:老年男性血清FSH、LH、SHBG水平随年龄增加而升高,而订、BT、TSI、FTI、PTH及CTX、OC和PINP随增龄呈下降趋势,80岁以后下降较为显著(P〈0.05)。PTH与CTX、OC和PINP均呈正相关(r=0.227,0.269,0.162;P〈0.01),校正年龄因素后,相关性仍然存在;SHBG与OC负相关(r=-0.100,P〈0.05)。各骨转换指标随PTH四分位水平升高而增加,第一分位与第四分位之间均存在显著差异(P〈0.01)。多元逐步回归结果显示,年龄与CTX、OC和PINP负相关(β=-0.126,-0.141,-0.122;P〈0.05),OTH与CTX、OC和PINP正相关(β=0.196,0.279,0.189;P〈0.001),SHBG与OC负相关(p=-0.100,P〈0.05)。结论:增龄是老年男性骨转换减低的根本原因,血清PTH和SHBG水平与骨转换生化指标相关。Objective: To investigate the correlation of serum sex hormones and parathyroid hormone (PTH) with the biochemi- cal markers of bone turnover in aged men. Methods : We collected the laboratory data of 465 men aged 60- 93 (73.1 _+ 8.3) years old, who came for routine physical examinations in our hospital. We obtained the levels of serum follicle- stimulating hormone ( FSH), luteinizing hormone (LH), estradiol (E2), testosterone (T), sex hormone binding globulin (SHBG), PTH, 25-hydroxy-vitamin D3 (25 (OH) D3 ), and bone turnover markers C-terminal telopeptide of type I collagen ( CTX), osteocalcin (OC) and amino-terminal propeptide of type I procollagen (PINP). We also determined free testosterone (FT), bioactive testosterone (BT), testosterone secre- tion index (TSI) and FT index (PI'I), and analyzed the correlation of each index with the biochemical markers of bone turnover. Results : The concentrations of serum FSH, LH, and SHBG increased, while the levels of FT, BT, TSI, FI'I, PTH, CTX, OC and PINP decreased with age, especially in those over 80 years old ( P 〈 0.05 ). PTH was positively correlated with CTX, OC and PINP(r = 0. 227, 0. 269 and 0. 162, P 〈 0.01 ), even after the adjustment for age, while SHBG negatively correlated with OC (r = -0. 100, P 〈 O. 05). The bone turnover markers increased with the elevation of the PTH quartiles, with significant differences be- tween the first and the fourth quartile (P 〈 0.0! ). Multiple stepwise regression analysis showed that age was correlated inversely with CTX, OC and PINP ( β = -0. 126, -0. 141 and -0. 122, P 〈0.05), PTH positively with the three markers ( β = 0. 196, O. 279 and 0. 189; P 〈 0. 001 ), and SHBG negatively with OC (β = -O. 100, P 〈 0.05). Conclusion: Aging is the fundamental cause of reduced bone turnover in aged men. The levels serum FFH and SHBG are significantly associated with the biochemical markers of bone turnover. Natl
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