Neuroimaging of cerebral glucose metabolism and blood flow is ideally suited to assay widely-distributed brain circuits as a result of local molecular events and behavioral modulation in the central nervous system. Wi...Neuroimaging of cerebral glucose metabolism and blood flow is ideally suited to assay widely-distributed brain circuits as a result of local molecular events and behavioral modulation in the central nervous system. With the progress in novel analytical methodology, this endeavor has succeeded in unraveling the mechanisms underlying a wide spectrum of neurodegenerative diseases. In particular, statistical brain mapping studies have made significant strides in describing the pathophysiology of Parkinson＇s disease （PD） and related disorders by providing signature biomarkers to determine the systemic abnormalities in brain function and evaluate disease progression, therapeutic responses, and clinical correlates in patients. In this article, we review the relevant clinical applications in patients in relation to healthy volunteers with a focus on the generation of unique spatial covariance patterns associated with the motor and cognitive symptoms underlying PD. These characteristic biomarkers can be potentially used not only to improve patient recruitment but also to predict outcomes in clinical trials.展开更多
目的:探讨帕金森病(PD)患者血浆同型半胱氨酸(Hcy)的变化及其与PD严重程度、运动、认知及抑郁之间的相关性。方法:比较53例PD患者及正常对照组血浆Hcy及维生素B12、叶酸水平。并对血浆Hcy与叶酸及维生素B12水平进行相关性分析。采用统一...目的:探讨帕金森病(PD)患者血浆同型半胱氨酸(Hcy)的变化及其与PD严重程度、运动、认知及抑郁之间的相关性。方法:比较53例PD患者及正常对照组血浆Hcy及维生素B12、叶酸水平。并对血浆Hcy与叶酸及维生素B12水平进行相关性分析。采用统一的Hoehn and Yahr(修正)分期量表(H&Y)、PD评价量表(UPDRS)运动分量表(UPDRS III)、简易智能精神量表(MMSE)、汉密尔顿抑郁量表(HMDS)对PD患者进行评分,分析Hcy与PD患者严重程度、运动、认知功能及抑郁的相关性。结果:PD组及对照组的Hcy浓度分别是(16.2±3.1)、(10.1±2.6)μmol/L,PD组血浆Hcy明显高于对照组,差异有统计学意义(P<0.05)。相关分析示被检者血浆Hcy水平与叶酸及维生素B12水平存在负相关。PD患者Hcy水平与H&Y、UPDRSIII、MMSE、HMDS评分具有显著性相关(分别为r=0.483,r=0.525,r=-0.429,r=0.481,P均<0.05)。结论:PD患者血浆Hcy水平升高,与维生素B12、叶酸呈负相关。PD患者Hcy水平和疾病严重程度、运动、认知程度、抑郁倾向相关。展开更多
基金supported by NIH(R01 NS 35069)the Morris K.Udall Center of Excellence for Parkinson's Disease Research (NIH P50 NS 071675) at The Feinstein Institute for Medical Research,USA
文摘Neuroimaging of cerebral glucose metabolism and blood flow is ideally suited to assay widely-distributed brain circuits as a result of local molecular events and behavioral modulation in the central nervous system. With the progress in novel analytical methodology, this endeavor has succeeded in unraveling the mechanisms underlying a wide spectrum of neurodegenerative diseases. In particular, statistical brain mapping studies have made significant strides in describing the pathophysiology of Parkinson＇s disease （PD） and related disorders by providing signature biomarkers to determine the systemic abnormalities in brain function and evaluate disease progression, therapeutic responses, and clinical correlates in patients. In this article, we review the relevant clinical applications in patients in relation to healthy volunteers with a focus on the generation of unique spatial covariance patterns associated with the motor and cognitive symptoms underlying PD. These characteristic biomarkers can be potentially used not only to improve patient recruitment but also to predict outcomes in clinical trials.
文摘目的:探讨帕金森病(PD)患者血浆同型半胱氨酸(Hcy)的变化及其与PD严重程度、运动、认知及抑郁之间的相关性。方法:比较53例PD患者及正常对照组血浆Hcy及维生素B12、叶酸水平。并对血浆Hcy与叶酸及维生素B12水平进行相关性分析。采用统一的Hoehn and Yahr(修正)分期量表(H&Y)、PD评价量表(UPDRS)运动分量表(UPDRS III)、简易智能精神量表(MMSE)、汉密尔顿抑郁量表(HMDS)对PD患者进行评分,分析Hcy与PD患者严重程度、运动、认知功能及抑郁的相关性。结果:PD组及对照组的Hcy浓度分别是(16.2±3.1)、(10.1±2.6)μmol/L,PD组血浆Hcy明显高于对照组,差异有统计学意义(P<0.05)。相关分析示被检者血浆Hcy水平与叶酸及维生素B12水平存在负相关。PD患者Hcy水平与H&Y、UPDRSIII、MMSE、HMDS评分具有显著性相关(分别为r=0.483,r=0.525,r=-0.429,r=0.481,P均<0.05)。结论:PD患者血浆Hcy水平升高,与维生素B12、叶酸呈负相关。PD患者Hcy水平和疾病严重程度、运动、认知程度、抑郁倾向相关。
