老年男性骨折与其骨密度的关系

目的 探讨老年男性新发骨折与其骨密度的关系.方法 对403例老年男性进行骨密度检测,然后随访其新发骨折情况,最后分析新发骨折与骨密度的关系.结果 403例老年男性在平均随访3.71年后,共发生骨折45(11.17%)人次,其中最常见的骨折部位是腰椎、髋部和腕部,最常见的骨折诱因是滑倒、踩空和被车祸;与骨量正常老年男性新鲜骨折率(6.00%)比较,骨量减少(13.59%)者、骨质疏松(17.02%)者的新发骨折率较高,经统计差异有统计学意义(P均<0.05).结论 延缓骨量丢失,预防跌倒、踩空和被车撞倒可能是减少老年男性新鲜骨折的重要方法.     

骨转换生化标志物在老年骨质疏松合并髋部骨折患者中的变化及其临床意义

目的探讨骨转换生化标志物在老年骨质疏松合并髋部骨折患者中的变化及其临床意义。方法选取2015年1月至2018年1月本院收治的老年骨质疏松合并髋部骨折患者50例作为骨折组,同期选取老年骨质疏松无髋部骨折患者50例作为无折组,检测两组骨转换生化标志物[Ⅰ型胶原羧基端肽β特殊序列(β-CTX)、Ⅰ型前胶原N端前肽(P1NP)],并对其进行统计学分析。结果骨折组β-CTX、P1NP水平明显高于无折组,差异有统计学意义(P0.05);ROC曲线分析显示,在预测老年骨质疏松合并髋部骨折的敏感度、特异度、准确度方面,β-CTX以456pg/m为临界值时分别为80.00%,78.00%,79.00%,P1NP以44ng/ml为临界值时分别为82.00%,78.00%,80.00%,二者联合时分别为96.00%,94.00%,95.00%,二者联合时明显高于二者单独时,差异有统计学意义(P0.05)。结论骨转换生化标志物水平变化与老年骨质疏松合并髋部骨折的发生有关,检测其水平变化可作为其预测患者髋部骨折发生的重要指标,且二者联合时具有更佳的效能,值得临床作进一步推广。     

男性吸烟与骨密度及骨生化指标关系

目的:探讨男性吸烟与骨密度及骨生化指标关系.方法:用DXA仪测定腰椎及髋部BMD,用ELISA测定389例20～80岁健康男性血清骨特异性碱性磷酸酶(sBAP)和Ⅰ型胶原氨基末端肽(sNTX).结果:(1)腰椎正位总体、腰椎侧位、髋部总体、股骨颈及Ward's区BMD均与年龄呈显著负相关(均P＜0.05).各部位BMD均在20～29岁年龄组最高,29岁之后随增龄而缓慢下降;40～60岁各年龄组之间的BMD无显著差异.(2)除腰椎侧位BMD外,吸烟组其他各部位BMD显著低于非吸烟组;吸烟组的BAP显著高于非吸烟组,两组之间的sNTX无显著差异.(3)校正年龄与BMI后,烟龄与腰椎正位,髋部总体,股骨颈及Ward's区BMD均呈显著负相关(P＜0.05).每日吸烟量与腰椎正位及Ward's区BMD呈显著负相关(P＜0.05).结论:男性随年龄增长骨量丢失.男性吸烟者骨生化指标与骨转换水平增高,骨量丢失加速.吸烟等生活方式增高骨转换水平,影响骨转换的增龄性变化并加速骨量的丢失.吸烟是骨质疏松的一个危险因素.预防骨质疏松症(OP)应提倡戒烟.     

2型糖尿病患者骨转换标志物与骨密度的相关性研究

目的探讨骨转换标志物在2型糖尿病合并骨质疏松患者中的临床应用价值及与不同部位骨密度的相关关系。方法选择我院64例2型糖尿病成年男性患者为病例组,同期收集20例健康成年男性为对照组,用双能X线吸收测定仪检测受试者正位腰椎（L1-L4）、右侧髋部（股骨颈、大转子、ward’s三角）的骨密度,并依据WHO骨质疏松症诊断标准将病例组分为骨质疏松组、骨量减少组、骨量正常组。同时检测血清骨钙素（osteocalcin,OC）、总Ⅰ型前胶原氨基端延长肽（procollagen type Ⅰ N—terminal propeptide,PINP）、Ⅰ型胶原羧基端肽β特殊序列（β—carboxy—terminal collagen crosslinks,β—CTX）、血钙（calcium,Ca）、血磷（phosphorus,P）、甲状旁腺素（parathyroid hormone,PTH）、25羟维生素D3[25-hydroxy vitamin D3,25（OH）D3]、空腹血糖（fasting blood—glucose,FBG）、糖化血红蛋白（hemoglobin AlC,HbAlC）、碱性磷酸酶（alkaline phosphatase,ALP）以及血清肌酐（serum creatinine,SCr）等临床化学指标,对检测结果进行统计学分析。结果各组间年龄、体重指数差异均无统计学意义（P均〉0．05）。骨量减少组及骨质疏松组的脊椎骨密度值、髋部骨密度值均显著低于健康对照组,且差异均有统计学意义（P均〈0．05）;骨量减少组与健康对照组相比,SCr、FBG、HbAlC和β—CTX均升高,差异均有统计学意义（P均〈0．05）;骨质疏松组与健康对照组相比,SCr、ALP、FBG、HbAlC、PINP、β—CTX、PTH结果均升高,且差异具有统计学意义（P均〈0．05）;骨量减少组和骨质疏松组的25（OH）D,均明显降低,与健康对照组相比差异均有统计学意义（P均〈0．05）。相关性分析结果表明,PINP、β—CTX与大转子、股骨全部的骨密度均呈负相关（P均〈0．05）。结论骨转换标志物与骨密度联合检测能更早反映糖尿病患?     

2型糖尿病性骨质疏松患者骨转换标志物的改变

目的:观察2型糖尿病性骨质疏松症患者骨转换标志物的改变,为2型糖尿病患者骨质疏松症的诊断和治疗提供参考依据。方法:选取2014年1月～2017年12月本院收治的226例2型糖尿病患者作为糖尿病组,选择同期在我院体检的160例健康成年人作为对照组,比较分析糖尿病组和对照组的骨密度(BMD)、空腹血糖(FPG)、糖化血红蛋白(Hb A1c)、血钙和骨转换标志物(Bone Turnover Markers,BTMs)的差异及相关性。结果:随着年龄增加,两组检测者的骨密度均呈下降趋势;糖尿病组的股骨颈及Ward's区骨密度明显低于对照组,且与年龄和糖尿病病程呈负相关;糖尿病组患者的骨转换标志物与骨密度测定结果有很好的相关性,尤其是与股骨颈和Ward's区的测定结果有很好的相关性。反映骨形成的标志物如骨钙素、骨碱性磷酸酶、Ⅰ型前胶原氨基末端前肽会随骨密度的降低而降低,反映骨吸收的标志物如Ⅰ型胶原蛋白C末端交联肽的含量,尿液中吡啶啉的含量会随骨密度的降低而升高。结论:在诊断2型糖尿病性骨质疏松症时,骨转换标志物与骨密度测量有很好的拟合性,可早期预测2型糖尿病患者的骨质疏松程度,并可用于监测骨质疏松症的治疗效果。     

代谢因素对老年男性骨转换生化标志物的影响分析

目的探讨代谢因素对老年男性骨转换生化标志物(bone turnover markers,BTMs)的影响。方法对2011年5—7月在我院进行健康体检年龄60~91岁且符合研究条件的男性337例抽取静脉血检测血清BTMs、甲状旁腺激素、25-羟维生素D、代谢指标和其他生化指标。将337例分别按体重指数(body mass index,BMI)及糖代谢、脂代谢、高血压情况进行分组(BMI分组A、B和C组分别为BMI24.0 kg/m2、24.0~27.9 kg/m2及≥28.0 kg/m2者,糖代谢分组A、B和C组分别为血糖正常、糖尿病前期及糖尿病者,脂代谢分组A和B组分别为无和有血脂紊乱者,血压分组A和B组分别为无和有高血压者),观察比较基本资料及代谢异常情况,采用多元线性回归分析分析BTMs的影响因素,并按糖代谢情况分组比较各组间BTMs差异。结果多元线性回归分析结果显示1型原胶原N-端前肽(P1NP)及1型胶原交联C-末端肽(CTX)与年龄呈负相关,CTX与肌酐呈正相关,骨钙素(OC)、P1NP与血磷呈正相关,P1NP与ALT呈正相关,OC、P1NP及CTX均与PTH呈正相关,OC与25-羟维生素D呈正相关,OC及P1NP均与糖代谢情况呈明显负相关(P0.05)。不同糖代谢情况的3组OC、P1NP及CTX水平均有明显差异(P0.05),A、B、C3组随着糖代谢异常情况逐渐加重OC、P1NP及CTX水平逐渐降低,除B组与C组CTX水平比较差异无统计学意义(P0.05)外,余各血清BTMs 3组间两两比较差异均有统计学意义(P0.05)。结论糖代谢对老年男性BTMs有显著影响,主要影响骨形成指标。     

骨密度与某些骨转换生化指标在骨质疏松疗效观察中的应用

骨密度测定是目前评价骨质疏松症治疗效果的重要方法,但因其需要较长时间的观察方能得出阳性结果,从而影响了在骨质疏松症治疗观察中的使用,近年研究发现,骨质疏松症治疗早期某些骨转换生化指标的变化不仅能反映骨密度的早期变化。也可以反映远期变化,从而早期预测治疗效果。     

骨转换生化标志物在骨质疏松症治疗中的临床应用

目的探讨并分析骨转换生化标志物在骨质疏松症治疗中的临床价值。方法将104例骨质疏松症患者随机分成观察组(54例)和对照组(50例)。观察组在治疗前后均进行Ⅰ型胶原蛋白氨基端前胶原肽(PINP)、Ⅰ型胶原分解片段C端肽β型(β-CTx)及骨钙素变化情况的监测,并根据监测结果调整治疗方案,及早预防骨折发生。对照组则根据常规治疗方法进行治疗,不进行骨转换生化标记物监测。治疗结束时通过骨密度检查判定并比较两组的临床治疗效果及骨折发生情况。结果观察组治愈率为88.89%;对照组治愈率66.00%。两组治愈率比较有显著性差异(P<0.05)。观察组治疗结束后骨转换生化指标均处于本地区临床标准范围内。研究期间观察组发生骨折患者3例,占5.56%;对照组发生骨折患者4例,占8.00%,两组比较骨折发生率无显著性差异(P>0.05)。结论骨转换生化指标能敏感反应患者骨形成与骨吸收情况,检测简便且廉价,在骨质疏松症的预防和治疗方面有显著的医疗效益、社会效益和经济效益。     

探讨老年2型糖尿病患者血尿酸水平与骨代谢标志物、骨密度、骨质疏松的相关性

目的 探讨老年2型糖尿病(T2DM)患者血尿酸水平与骨代谢标志物、骨密度、骨质疏松的相关性。方法 选取2019年2月至2020年10月在该院治疗的120例老年T2DM患者为研究对象,其中男61例,女59例。收集全部患者基本资料和糖尿病病程、体质量指数(BMI),检测其血清生化指标水平包括血压、甲状旁腺激素(PTH)、25-羟维生素D[25(OH)D]、骨钙素(OC)、Ⅰ型前胶原N-末端前肽(PⅠNP)、Ⅰ型胶原交联C-末端肽(β-CTX)、肾小球滤过率(eGFR)、股骨颈骨密度(FNBMD)、腰椎L1～L4骨密度(L1～L4 BMD)。分析FNBMD、L1～L4 BMD的变化,以及血尿酸水平与钙、PTH、OC、PⅠNP、β-CTX、25(OH)D、FNBMD、L1～L4 BMD的关系。结果 男性患者25(OH)D、FNBMD、L1～L4 BMD、肌酐(Cr)、血尿酸水平高于女性患者,PTH、甘油三酯、OC、PⅠNP、β-CTX水平低于女性患者,差异均有统计学意义(P<0.05)。血尿酸经四分位法分组后结果表明,血尿酸水平在391.00～652.00μmol/L的患者FNBMD、L...     

Relationship between bone mineral density and biochemical markers of bone turnover in hemodialysis patients

End-stage renal disease is closely associated with changes in bone and mineral metabolism. In recent times, osteoporosis has become important among hemodialysis (HD) patients. In this study, the investigators sought to evaluate the relationship between bone mineral density (BMD) and biochemical markers of bone turnover among HD patients. A total of 70 uremic patients on a maintenance HD program for at least 1 y were enrolled in the study. All patients were treated with conventional bicarbonated HD for 5 h through the use of low-flux hollow-fiber dialyzers. Bone densitometry was measured by dual energy x-ray absorptiometry in the lumbar spine (LS) and the femoral neck (FN). BMD was classified according to World Health Organization criteria on the basis of BMD T scores. Biochemical bone turnover markers such as calcium, phosphorus, ionized calcium, intact parathyroid hormone, alkaline phosphatase, plasma bicarbonate, blood pH, serum albumin, and hematocrit levels were measured before the HD session in the morning. Male patients (n=37; 52.9%; mean age, 46.2+/-17.0 y) were assigned to a single study group, and female patients (n=33; 47.1%; mean age, 44.0+/-13.1 y) to another. Mean duration of HD treatment was 33.7+/-28.5 mo in females and 33.0+/-26.0 mo in males. Among all patients, BMD T scores in the osteopenia/osteoporosis range were observed at the LS in 58 patients (82.8%) and at the FN in 45 patients (64.3%). According to BMD measurements in FN T score, 10% of patients (n=7) were osteoporotic, 54.3% (n=38), osteopenic, and 35.7% (n=25), normal. On the other hand, in LS T score, the results were 47.1% (n=33) osteoporotic, 35.7% (n=25), osteopenic, and 17.1% (n=12), normal. No statistically significant association was found in osteopenia/osteoporosis between sexes according to FN and LS T score (P=.542, P=.267, respectively). No significant relationship was noted between BMD and biochemical markers of bone turnover. A positive correlation was found between FN T scores of BMD and age (r=.413, P=.000). BMD T scores within the range of scores for osteopenia/osteoporosis were observed in 78.5% of patients at the LS and in 58.5% of patients at the FN. The investigators concluded that no correlation could be found between markers of bone turnover and bone mass measurements in both skeletal regions. LS T score results were worse than FN T score results. Elevated alkaline phosphastase levels combined with high intact parathyroid hormone levels are predictive of renal osteodystrophy but not of adynamic bone disease/osteoporosis.     

Effects of alendronate and risedronate on bone mineral density and bone turnover markers in late postmenopausal women with osteoporosis

This study was undertaken to compare the effects of alendronate and risedronate on bone mineral density (BMD) and bone turnover markers (BTMs) in late postmenopausal women with osteoporosis. Thirty women older than 60 y of age were randomly assigned to receive alendronate 10 mg (n=16) or risedronate 5 mg (n=14) on a daily basis. The patients were followed every 3 mo for 12 mo. BMD measurements were taken at baseline and at the end of the study, and BTMs were measured at 3-mo intervals. By the end of the study, there were statistically significant increases in BMD in both groups at all sites at which they were measured (P < .001). However, these differences were not statistically significant between groups. By the end of the study, all BTMs had decreased significantly and to a similar extent in both groups. The most significant change was observed in the third month of the study. A negative correlation was noted between percentage change in bonespecific alkaline phosphatase and femoral neck BMD (r=-0.467). This study reported no difference between the 2 drugs in their effects on BMD and BTMs.     

2型糖尿病女性患者骨密度与骨转换率的相关性

目的探讨2型糖尿病(T2DM)女性患者骨密度与骨转换及骨重建的相关性。方法回顾性分析纳入在南方医科大学第三附属医院内分泌科住院的201例T2DM女性患者住院期间的临床数据,采用双能X线骨密度仪,测量骨密度,包括腰椎、左侧股骨颈和髋部总体,将纳入对象分为骨量正常组85例(T>-1)、骨量减少组87例(-2.5 < T < -1)和骨质疏松组29例(T < -2.5),检测骨钙素N端中分子片段和β-Ⅰ型胶原C-末端交联分别评估骨形成和骨吸收。根据骨形成和骨吸收的T值分别计算骨转换率和骨重建率,比较T2DM患者骨质疏松组和骨量正常组患者的的骨转换率T值以及骨重建率T值的差异,并评估T2DM女性患者骨转换率T值和骨重建率T值与骨密度之间的相关性。结果T2DM女性患者骨质疏松组的骨转换率T值与T2DM女性患者骨量正常组的骨转换率T值差异有统计学意义(P=0.041),T2DM女性患者骨转换率T值与髋部骨密度负相关(r=-0.14,P =0.049)。校正糖化血红蛋白后,T2DM女性患者骨转换T值与髋部仍呈骨密度负相关(r=-0.144,P=0.043)。结论在T2DM女性患者中,随着骨转换率的增高,患者骨密度越低,并发低创伤性骨折的风险也会随之增高。     

Biochemical markers of bone turnover and bone mineral density in patients with beta-thalassaemia major

In this study, bone formation markers (bone-specific alkaline phosphatase and osteocalcin) and bone resorption markers (pyridinoline and deoxypyridinoline) were analysed. Bone formation, as evidenced by the levels of serum alkaline phosphatase and osteocalcin, did not appear to be impaired, while bone resorption was grossly increased in all patient groups. The decrease of bone mineral density values was more prominent in the lumbar spine, thus making this site particularly interesting for such studies. The patients had significantly lower femoral neck and lumbar spine bone mineral density when compared with control (all p <0.001). Our conclusion is that, in spite of the severe bone destruction that occurs in thalassaemia major, the fact that bone formation remains intact calls for a more intensive treatment.     

Serum osteopontin levels in relation to bone mineral density and bone turnover markers in postmenopausal women

Osteopontin (OPN) is an extracellular matrix protein that is expressed in bone cells such as osteoblast and osteocytes and associated with bone turnover and bone mineral density (BMD) in postmenopausal women. Here, we aimed to investigate the relationship between circulating OPN levels and BMD in postmenopausal women in Southern China. A total of 362 postmenopausal women were consecutively recruited into this study from 2011–2013. Serum levels of OPN, receptor activator of nuclear factor kappa B (NF-κB) ligand (RANKL), and bone turnover markers were analyzed. BMD was measured by dual energy X-ray absorptiometry. Osteoporosis and osteopenia were diagnosed according to the World Health Organization criteria. Serum OPN levels were remarkably higher in the osteoporotic group than those in the osteopenic and normal groups (all p?r?=??0.25, p?=?0.004; r?=??0.66, p?r?=??0.28, p?=?0.001; respectively) and positively associated with type I procollagen amino-terminal propeptide (PINP), carboxy-terminal cross-linking telopeptide of type I collagen (CTX), and RANKL (r?=?0.20, p?=?0.020; r?=?0.17, p?=?0.036; r?=?0.19, p?=?0.028, respectively) in the osteoporotic group. In multiple regression analyses, lumbar spine BMD, PTH and RANKL were the predictors for serum OPN levels. In conclusion, OPN serum levels are negatively related to BMD and positively correlated with bone turnover levels in this group of Chinese postmenopausal women.     

体重指数与骨密度的关系

目的分析体重指数(BMI)与骨密度的关系.方法对2395例腰椎前后位和髋部骨密度检查结果的T值与体重指数进行统计学相关回归分析.结果无论总体分析或按年龄组分析都显示骨密度T值与体重指数呈线性正相关.低体重指数者(BMI≤20)骨密度T值低于较高体重指数者(BMI>20),差异具有显著性.骨密度T值随体重指数变化在髋部较脊柱更明显.结论体重指数与骨密度T值呈正相关,低体重指数与骨质疏松的发生有关.     

血液透析患者血清瘦素水平与骨密度和骨代谢的关系研究

目的观察血液透析患者体内血清瘦素水平与骨密度、骨代谢指标之间的关系。方法94名血液透析患者均采用双能X射线骨密度仪检测计算股骨颈和腰椎骨的骨密度。采用酶联免疫法测定血清瘦素,放射免疫检定法测定甲状旁腺素（PTH）,酶联免疫吸附法测定Ⅰ型胶原羧基端肽β特殊序列（β-CTX）,采用全自动生化分析仪检测骨特异性碱性磷酸酶（BAP）。结果女性患者的血清瘦素明显高于男性患者（t=2.44,P＜0.05）,且女性患者血清瘦素和PTH、β-CTX、BAP均呈负相关（r分别=-0.58、-0.23、-0.37,P均＜0.05）,男性患者血清瘦素和PTH、β-CTX呈负相关（r分别=-0.41、-0.45,P均＜0.05）。所有患者的血清瘦素与骨密度相关性不明显（r分别=0.06、0.06,P均＞0.05）。结论血液透析患者女性的血清瘦素水平明显高于男性,女性患者血清瘦素与骨代谢呈负相关;男性患者中血清瘦素与骨代谢中的骨吸收负相关,而与骨形成无关。所有患者的血清瘦素与骨密度相关性均不明显。