目的探讨双能X线骨密度扫描(dual energy X-ray absorptiometry,DXA)技术诊断早期偏侧性帕金森病(Parkinson’s disease,PD)的临床价值。方法选取2019年9月至2022年3月就诊于上海健康医学院附属周浦医院诊断为早期偏侧性PD的患者80例为P...目的探讨双能X线骨密度扫描(dual energy X-ray absorptiometry,DXA)技术诊断早期偏侧性帕金森病(Parkinson’s disease,PD)的临床价值。方法选取2019年9月至2022年3月就诊于上海健康医学院附属周浦医院诊断为早期偏侧性PD的患者80例为PD组,另选同期年龄、性别及体重指数(body mass index,BMI)相匹配的健康体检者60例为对照组。采用双能X线骨密度扫描仪测定所有纳入对象的股骨颈骨密度、髋部总骨密度、腰椎总骨密度,并检测血清25-羟维生素D[25-hydroxyvitamin D,25(OH)D]水平,比较两组骨密度、25(OH)D水平,分析PD组骨质疏松发生的危险因素。结果PD组腰椎总骨密度、股骨颈骨密度、髋部总骨密度、25(OH)D水平均低于对照组,差异有显著性(P<0.05)。PD组中27.5%(22例)患者出现骨质疏松,骨质疏松发生率高于对照组,差异有显著性(P<0.05)。多因素logistic回归分析显示年龄、女性、低BMI、低25(OH)D水平是早期偏侧性PD患者发生骨质疏松的危险因素。结论DXA能检测出偏侧性PD患者在病程早期阶段的骨密度,结合血清25(OH)D水平的降低等因素,对存在危险因素的患者应进行必要的早期预防和及时干预措施,以减少骨质疏松的发生,降低骨折风险。展开更多
Let A be a subgroup of a group G and X be a nonempty subset of G. A is said to be X-semipermutable in G if A has a supplement T in G such that A is X-permutable with every subgroup of T. In this paper, we investigate ...Let A be a subgroup of a group G and X be a nonempty subset of G. A is said to be X-semipermutable in G if A has a supplement T in G such that A is X-permutable with every subgroup of T. In this paper, we investigate further the influence of X-semipermutability of some subgroups on the structure of finite groups. Some new criteria for a group G to be supersoluble or p-nilpotent are obtained.展开更多
文摘目的探讨双能X线骨密度扫描(dual energy X-ray absorptiometry,DXA)技术诊断早期偏侧性帕金森病(Parkinson’s disease,PD)的临床价值。方法选取2019年9月至2022年3月就诊于上海健康医学院附属周浦医院诊断为早期偏侧性PD的患者80例为PD组,另选同期年龄、性别及体重指数(body mass index,BMI)相匹配的健康体检者60例为对照组。采用双能X线骨密度扫描仪测定所有纳入对象的股骨颈骨密度、髋部总骨密度、腰椎总骨密度,并检测血清25-羟维生素D[25-hydroxyvitamin D,25(OH)D]水平,比较两组骨密度、25(OH)D水平,分析PD组骨质疏松发生的危险因素。结果PD组腰椎总骨密度、股骨颈骨密度、髋部总骨密度、25(OH)D水平均低于对照组,差异有显著性(P<0.05)。PD组中27.5%(22例)患者出现骨质疏松,骨质疏松发生率高于对照组,差异有显著性(P<0.05)。多因素logistic回归分析显示年龄、女性、低BMI、低25(OH)D水平是早期偏侧性PD患者发生骨质疏松的危险因素。结论DXA能检测出偏侧性PD患者在病程早期阶段的骨密度,结合血清25(OH)D水平的降低等因素,对存在危险因素的患者应进行必要的早期预防和及时干预措施,以减少骨质疏松的发生,降低骨折风险。
基金supported by National Natural Science Foundation of China (Grant Nos. 10771172, 10771180)
文摘Let A be a subgroup of a group G and X be a nonempty subset of G. A is said to be X-semipermutable in G if A has a supplement T in G such that A is X-permutable with every subgroup of T. In this paper, we investigate further the influence of X-semipermutability of some subgroups on the structure of finite groups. Some new criteria for a group G to be supersoluble or p-nilpotent are obtained.
