Guohua Zhang1, Chengguo Zhang1, Yuhu Zhang2, Yukai Wang1, Kun Nie2, Bin Zhang2, Haiqun Xie1, Jiancong Lu1, Lijuan Wang3. 1. Department of Neurology, The First People's Hospital of Foshan, Foshan, 528000, Guangdong, People's Republic of China. 2. Department of Neurology, Guangdong Neuroscience Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, People's Republic of China. 3. Department of Neurology, Guangdong Neuroscience Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, People's Republic of China. Electronic address: wljgd68@163.com.
Abstract
OBJECTIVE: Striatal silent lacunar infarction (SSLI) is associated with structural changes to the substantia nigra (SN), detectable by diffusion kurtosis imaging (DKI). In this follow-up study, we investigated the effects of SSLI on the SN and movement disorders in patients with Parkinson's disease (PD). METHODS: A total of 60 untreated patients with early-stage PD, divided into control and SSLI groups, were enrolled in this study. All participants underwent conventional MRI and DKI twice; at baseline and after a 1-year period. We analyzed the differences of the following variables between the two groups: mean kurtosis (MK) values of the SN, the severity of disease, daily dosage of levodopa, and the variation of these indexes from baseline to 1-year visit. Logistic regression analysis was used to identify the major risk factors for SSLI in PD patients. RESULTS: 1. All variables showed significant differences between the two groups. 2. The variation in MK values of the SN had a positive correlation with the variation in the severity of disease. 3. Hypertension and hyperhomocysteinemia were independent factors for SSLI in patients with PD. CONCLUSION: As PD progresses, movement disorders become more prominent, with increased structural changes to the SN, especially in patients with SSLI. Furthermore, PD patients with hypertension and hyperhomocysteinemia are more likely to have SSLI.
OBJECTIVE:Striatal silent lacunar infarction (SSLI) is associated with structural changes to the substantia nigra (SN), detectable by diffusion kurtosis imaging (DKI). In this follow-up study, we investigated the effects of SSLI on the SN and movement disorders in patients with Parkinson's disease (PD). METHODS: A total of 60 untreated patients with early-stage PD, divided into control and SSLI groups, were enrolled in this study. All participants underwent conventional MRI and DKI twice; at baseline and after a 1-year period. We analyzed the differences of the following variables between the two groups: mean kurtosis (MK) values of the SN, the severity of disease, daily dosage of levodopa, and the variation of these indexes from baseline to 1-year visit. Logistic regression analysis was used to identify the major risk factors for SSLI in PDpatients. RESULTS: 1. All variables showed significant differences between the two groups. 2. The variation in MK values of the SN had a positive correlation with the variation in the severity of disease. 3. Hypertension and hyperhomocysteinemia were independent factors for SSLI in patients with PD. CONCLUSION: As PD progresses, movement disorders become more prominent, with increased structural changes to the SN, especially in patients with SSLI. Furthermore, PDpatients with hypertension and hyperhomocysteinemia are more likely to have SSLI.
Authors: David M Kent; Lester Y Leung; Eric J Puttock; Andy Y Wang; Patrick H Luetmer; David F Kallmes; Jason Nelson; Sunyang Fu; Chengyi Zheng; Ellen M Vickery; Hongfang Liu; Alastair J Noyce; Wansu Chen Journal: Ann Neurol Date: 2022-08-17 Impact factor: 11.274
Authors: Maurizio Bergamino; Elizabeth G Keeling; Virendra R Mishra; Ashley M Stokes; Ryan R Walsh Journal: Front Neurol Date: 2020-05-14 Impact factor: 4.003