BACKGROUND Intracranial and extracranial artery stenosis is associated with cerebral infarction.Vascular calcification and atherosclerosis are the main causes of stenosis and major risk factors for cardiovascular and ...BACKGROUND Intracranial and extracranial artery stenosis is associated with cerebral infarction.Vascular calcification and atherosclerosis are the main causes of stenosis and major risk factors for cardiovascular and cerebrovascular events in patients with type 2 diabetes mellitus(T2DM).Bone turnover biomarkers(BTMs)are associated with vascular calcification,atherosclerosis,glucose,and lipid metabolism.AIM To investigate the association of circulating BTM levels with severe intracranial and extracranial artery stenosis in patients with T2DM.METHODS For this cross-sectional study including 257 T2DM patients,levels of the BTMs serum osteocalcin(OC),C-terminal cross-linked telopeptide of type I collagen(CTX),and procollagen type I N-peptide were measured by electrical chemiluminescent immunoassay,and artery stenosis was assessed by color Doppler and transcranial Doppler.Patients were grouped according to the existence and location(intracranial vs.extracranial)of artery stenosis.Correlations between BTM levels,previous stroke,stenosis location,and glucose and lipid metabolism were analyzed.RESULTS T2DM patients with severe artery stenosis had a higher frequency of previous stroke and levels of all three tested BTMs(all P<0.05)than patients without.Some differences in OC and CTX levels were observed according to the location of artery stenosis.Significant associations were also observed between BTM levels and some glucose and lipid homeostasis parameters.On multivariate logistic regression analysis,all BTMs were significant predictors of artery stenosis in T2DM patients with and without adjustment for confounding factors(all P<0.001),and receiver operating characteristic curve analysis demonstrated the ability of BTM levels to predict artery stenosis in T2DM patients.CONCLUSION BTM levels were found to be independent risk factors for severe intracranial and extracranial artery stenosis and were differentially associated with glucose and lipid metabolism in patients with T2DM.Therefore,BTMs may be promising biomarkers and potential therapeutic targets for artery stenosis.展开更多
目的分析北京地区健康绝经期前女性不同年龄阶段血清I型原胶原氨基端肽(procollagen type 1 N-terminal propeptide,P1NP)和I型胶原羧基端肽交联(βcross-linked C-telopeptide of type 1 collagen,β-CTX)水平的分布趋势差异并初步建...目的分析北京地区健康绝经期前女性不同年龄阶段血清I型原胶原氨基端肽(procollagen type 1 N-terminal propeptide,P1NP)和I型胶原羧基端肽交联(βcross-linked C-telopeptide of type 1 collagen,β-CTX)水平的分布趋势差异并初步建立两者的参考区间。方法以北京地区健康绝经期前女性作为研究对象,应用罗氏电化学发光免疫分析技术,对符合入组标准的272名30~54岁女性血清P1NP和β-CTX水平进行检测。以5岁为一年龄段进行分组:30~34岁,35~39岁,40~44岁,45~49岁,50~54岁;运用局部加权回归散点平滑法和Kolmogorov-Smirnov Z检验比较不同年龄段两者的组间分布趋势差异,确定参考人群的特异年龄段,并应用非参数方法建立参考区间。结果 272名入组受试者的平均年龄为(39.51±5.85)岁,总体P1NP与β-CTX水平呈非正态分布。35~39岁与40~44岁的血清P1NP与β-CTX水平分布趋势比较差异无统计学意义(P>0.05);进一步将30~34岁及45~49岁水平分别与35~44岁水平的分布趋势比较,差异有统计学意义(P<0.05)。因此将35~44岁年龄段的健康绝经期前女性作为参考人群,由此所建立的血清P1NP参考区间为:17.95~65.60 ng/m L,血清β-CTX参考区间为0.10~0.49 ng/m L。结论北京地区35~44岁健康绝经期前女性血清骨转换标志物P1NP和β-CTX水平分布趋势相对平稳,受变异因素影响最小,两者在此年龄段人群的测定结果适宜作为建立参考区间的参考值。展开更多
目的:评价放射性核素骨显像(ECT)联合细胞角蛋白19可溶性片段CYFRA21-1、Ⅰ型胶原交联氨基末端肽(N-telopeptide of typeⅠcollagen,NTx)、骨涎蛋白(Bone Sialoprotein,BSP)的检测在诊断肺癌骨转移中的价值。方法:随机选取行放射性核素...目的:评价放射性核素骨显像(ECT)联合细胞角蛋白19可溶性片段CYFRA21-1、Ⅰ型胶原交联氨基末端肽(N-telopeptide of typeⅠcollagen,NTx)、骨涎蛋白(Bone Sialoprotein,BSP)的检测在诊断肺癌骨转移中的价值。方法:随机选取行放射性核素显像的肺癌患者82例为实验组,健康体检者30例为对照组,分别检测外周血清中CYFRA21-1、BSP、NTx的含量。结果:实验组患者血清中CYFRA21-1、BSP、NTx含量明显高于对照组(P<0.001);ECT显示发生骨转移45例,显像正常无骨转移37例;无骨转移组CYFRA21-1、NTx、BSP的含量均高于对照组,但无统计学差异(P>0.05);发生骨转移组CYFRA21-1、NTx、BSP的含量明显高于对照组(P<0.001);≤2个骨转移灶患者的CYFRA21-1、BSP、NTx水平明显低于>2个骨转移患者(P<0.05)。结论:全身骨显像联合血清中CY-FRA21-1、BSP、NTx水平的检测可以提高肺癌骨转移的检出率。展开更多
目的观察血清脂质运载蛋白2(lipocalin 2,LCN2)、骨代谢指标与中年女性骨密度的相关性。方法分析253名汉族女性资料,通过双能X线吸收测定法测量其腰椎和股骨颈的骨密度(bone mineral density,BMD),测量LCN2、I型胶原的羧基末端交联端肽(...目的观察血清脂质运载蛋白2(lipocalin 2,LCN2)、骨代谢指标与中年女性骨密度的相关性。方法分析253名汉族女性资料,通过双能X线吸收测定法测量其腰椎和股骨颈的骨密度(bone mineral density,BMD),测量LCN2、I型胶原的羧基末端交联端肽(type I collage cross-linked-telopeptide,CTX)、骨钙蛋白(osteocalcin,OCN)和肌酸酐(screatinine,Scr)的血清水平。结果LCN2与腰椎和股骨颈的BMD呈负相关。LCN2和CTX、OCN、年龄、Scr之间呈显著正相关。调整年龄和Scr后,LCN2、BMDs和OCN之间的相关性消失,但LCN2仍与CTX呈正相关。LCN2的血清浓度在有和没有骨质疏松性骨折的受试者之间没有显示出显著差异。在多变量回归分析中,LCN2是血清CTX变化的主要决定因素之一。结论在中年女性中,血清LCN2水平、BMD和OCN之间的关系受到年龄和Scr的干扰。虽然LCN2与CTX呈正相关,但相关性非常小。展开更多
AIM:To investigate the postprandial response of bone turnover markers in patients with Crohn’s disease(CD).METHODS:Fifty nine patients with CD aged 38±14years,and 45 healthy individuals matched for age and body ...AIM:To investigate the postprandial response of bone turnover markers in patients with Crohn’s disease(CD).METHODS:Fifty nine patients with CD aged 38±14years,and 45 healthy individuals matched for age and body mass index were included in the study.All participants underwent an oral glucose tolerance test(OGTT)after an overnight fast and serum levels of the bone resorption marker C-terminal crosslinking telopeptide of type?Ⅰ?collagen(CTX-Ⅰ)and the bone formation marker procollagen type?Ⅰ?N propeptide were measured.Activity of the disease was assessed by calculation of the Crohn’s disease activity index(CDAI).RESULTS:Serum CTX-I was significantly higher in patients compared to controls(CTX-I:453±21 pg/mL vs 365±25 pg/mL,P=0.008),and values were significantly correlated with the activity of the disease(r=0.435,P=0.001).Results from OGTT-induced suppression of CTX-I showed two different trends.Patients with more active disease(assessed as CDAI>150)had a more excessive suppression of CTX-I compared to controls(55%vs 43%P<0.001),while patients on remission(assessed as CDAI<150)demonstrated an attenuated CTX-I suppression(30%vs 43%P<0.001).In line with this,CTX-I suppression after oral glucose load was significantly correlated with the activity of the disease(r=0.913,P<0.001).CONCLUSION:The physiological skeletal response of postprandial suppression of bone resorption is maintained in patients with CD and is strongly dependent to the activity of the disease.展开更多
AIM: To investigate the relationship between clinicopathological features and bone turnover markers in castration-resistant prostate cancer(CRPC) patients treated with docetaxel.METHODS: Thirty-three patients were enr...AIM: To investigate the relationship between clinicopathological features and bone turnover markers in castration-resistant prostate cancer(CRPC) patients treated with docetaxel.METHODS: Thirty-three patients were enrolled in this study. Serum levels of carboxyterminal cross-linked telopeptide of type 1 collagen generated by metalloproteinases(1CTP) and alkaline phosphatase(ALP) were measured at the start of docetaxel chemotherapy. We examined the relationship between clinicopathological features and serum levels of 1CTP and ALP levels in CRPC patients treated with docetaxel.RESULTS: For the total patient group, the mean ± standard deviation(SD) values for docetaxel chemotherapy dose, dose intensity, dosage interval, and num-ber of cycles were 59.3 ± 10.6 mg/m2, 13.9 ± 5.2 mg/m2 per week, 4.7 ± 1.2 wk, and 11.2 ± 7.4, respectively. Fourteen patients died from prostate cancer. Patients were divided into two groups according to mean + SD of serum 1CTP(8.2 ng/m L) and ALP(538.2 IU/L) levels at the start of docetaxel chemotherapy. Patients with lower levels of serum 1CTP and ALP had significantly better survivals than those with higher serum levels(P < 0.05).CONCLUSION: Serum levels of 1CTP and ALP are predictors of survival in patients with CRPC who are treated with docetaxel.展开更多
基金Supported by Beijing Municipal Hospital Management Center“Cultivation Plan”,No.PX2022032.
文摘BACKGROUND Intracranial and extracranial artery stenosis is associated with cerebral infarction.Vascular calcification and atherosclerosis are the main causes of stenosis and major risk factors for cardiovascular and cerebrovascular events in patients with type 2 diabetes mellitus(T2DM).Bone turnover biomarkers(BTMs)are associated with vascular calcification,atherosclerosis,glucose,and lipid metabolism.AIM To investigate the association of circulating BTM levels with severe intracranial and extracranial artery stenosis in patients with T2DM.METHODS For this cross-sectional study including 257 T2DM patients,levels of the BTMs serum osteocalcin(OC),C-terminal cross-linked telopeptide of type I collagen(CTX),and procollagen type I N-peptide were measured by electrical chemiluminescent immunoassay,and artery stenosis was assessed by color Doppler and transcranial Doppler.Patients were grouped according to the existence and location(intracranial vs.extracranial)of artery stenosis.Correlations between BTM levels,previous stroke,stenosis location,and glucose and lipid metabolism were analyzed.RESULTS T2DM patients with severe artery stenosis had a higher frequency of previous stroke and levels of all three tested BTMs(all P<0.05)than patients without.Some differences in OC and CTX levels were observed according to the location of artery stenosis.Significant associations were also observed between BTM levels and some glucose and lipid homeostasis parameters.On multivariate logistic regression analysis,all BTMs were significant predictors of artery stenosis in T2DM patients with and without adjustment for confounding factors(all P<0.001),and receiver operating characteristic curve analysis demonstrated the ability of BTM levels to predict artery stenosis in T2DM patients.CONCLUSION BTM levels were found to be independent risk factors for severe intracranial and extracranial artery stenosis and were differentially associated with glucose and lipid metabolism in patients with T2DM.Therefore,BTMs may be promising biomarkers and potential therapeutic targets for artery stenosis.
文摘目的:评价放射性核素骨显像(ECT)联合细胞角蛋白19可溶性片段CYFRA21-1、Ⅰ型胶原交联氨基末端肽(N-telopeptide of typeⅠcollagen,NTx)、骨涎蛋白(Bone Sialoprotein,BSP)的检测在诊断肺癌骨转移中的价值。方法:随机选取行放射性核素显像的肺癌患者82例为实验组,健康体检者30例为对照组,分别检测外周血清中CYFRA21-1、BSP、NTx的含量。结果:实验组患者血清中CYFRA21-1、BSP、NTx含量明显高于对照组(P<0.001);ECT显示发生骨转移45例,显像正常无骨转移37例;无骨转移组CYFRA21-1、NTx、BSP的含量均高于对照组,但无统计学差异(P>0.05);发生骨转移组CYFRA21-1、NTx、BSP的含量明显高于对照组(P<0.001);≤2个骨转移灶患者的CYFRA21-1、BSP、NTx水平明显低于>2个骨转移患者(P<0.05)。结论:全身骨显像联合血清中CY-FRA21-1、BSP、NTx水平的检测可以提高肺癌骨转移的检出率。
文摘目的观察血清脂质运载蛋白2(lipocalin 2,LCN2)、骨代谢指标与中年女性骨密度的相关性。方法分析253名汉族女性资料,通过双能X线吸收测定法测量其腰椎和股骨颈的骨密度(bone mineral density,BMD),测量LCN2、I型胶原的羧基末端交联端肽(type I collage cross-linked-telopeptide,CTX)、骨钙蛋白(osteocalcin,OCN)和肌酸酐(screatinine,Scr)的血清水平。结果LCN2与腰椎和股骨颈的BMD呈负相关。LCN2和CTX、OCN、年龄、Scr之间呈显著正相关。调整年龄和Scr后,LCN2、BMDs和OCN之间的相关性消失,但LCN2仍与CTX呈正相关。LCN2的血清浓度在有和没有骨质疏松性骨折的受试者之间没有显示出显著差异。在多变量回归分析中,LCN2是血清CTX变化的主要决定因素之一。结论在中年女性中,血清LCN2水平、BMD和OCN之间的关系受到年龄和Scr的干扰。虽然LCN2与CTX呈正相关,但相关性非常小。
文摘AIM:To investigate the postprandial response of bone turnover markers in patients with Crohn’s disease(CD).METHODS:Fifty nine patients with CD aged 38±14years,and 45 healthy individuals matched for age and body mass index were included in the study.All participants underwent an oral glucose tolerance test(OGTT)after an overnight fast and serum levels of the bone resorption marker C-terminal crosslinking telopeptide of type?Ⅰ?collagen(CTX-Ⅰ)and the bone formation marker procollagen type?Ⅰ?N propeptide were measured.Activity of the disease was assessed by calculation of the Crohn’s disease activity index(CDAI).RESULTS:Serum CTX-I was significantly higher in patients compared to controls(CTX-I:453±21 pg/mL vs 365±25 pg/mL,P=0.008),and values were significantly correlated with the activity of the disease(r=0.435,P=0.001).Results from OGTT-induced suppression of CTX-I showed two different trends.Patients with more active disease(assessed as CDAI>150)had a more excessive suppression of CTX-I compared to controls(55%vs 43%P<0.001),while patients on remission(assessed as CDAI<150)demonstrated an attenuated CTX-I suppression(30%vs 43%P<0.001).In line with this,CTX-I suppression after oral glucose load was significantly correlated with the activity of the disease(r=0.913,P<0.001).CONCLUSION:The physiological skeletal response of postprandial suppression of bone resorption is maintained in patients with CD and is strongly dependent to the activity of the disease.
基金Supported by Grants-in-Aid from the Ministry of Education,Culture,Sports,Science and Technology,Tokyo,Japan,No.22591761,No.23791792
文摘AIM: To investigate the relationship between clinicopathological features and bone turnover markers in castration-resistant prostate cancer(CRPC) patients treated with docetaxel.METHODS: Thirty-three patients were enrolled in this study. Serum levels of carboxyterminal cross-linked telopeptide of type 1 collagen generated by metalloproteinases(1CTP) and alkaline phosphatase(ALP) were measured at the start of docetaxel chemotherapy. We examined the relationship between clinicopathological features and serum levels of 1CTP and ALP levels in CRPC patients treated with docetaxel.RESULTS: For the total patient group, the mean ± standard deviation(SD) values for docetaxel chemotherapy dose, dose intensity, dosage interval, and num-ber of cycles were 59.3 ± 10.6 mg/m2, 13.9 ± 5.2 mg/m2 per week, 4.7 ± 1.2 wk, and 11.2 ± 7.4, respectively. Fourteen patients died from prostate cancer. Patients were divided into two groups according to mean + SD of serum 1CTP(8.2 ng/m L) and ALP(538.2 IU/L) levels at the start of docetaxel chemotherapy. Patients with lower levels of serum 1CTP and ALP had significantly better survivals than those with higher serum levels(P < 0.05).CONCLUSION: Serum levels of 1CTP and ALP are predictors of survival in patients with CRPC who are treated with docetaxel.
