Publications by authors named "Hedi An"

Background: Evidence suggests that the pathogenesis of Parkinson's disease (PD) is initiated in the gut rather than in the brain. Thus, targeting the gut in early stages may have the potential to halt disease progression and alleviate symptoms. Various acupuncture techniques have been used to treat patients with PD and have shown promising results.

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Paeoniflorin (PF), a water-soluble monoterpene glycoside extracted from the root of Paeonia lactiflora Pall, has been shown to exert neuroprotective effects against neurodegenerative diseases such as Parkinson's disease (PD). However, its underlying mechanisms remain unknown. Our results showed that at certain concentrations, PF alleviated 1-methyl-4-phenylpyridinium (MPP)-induced morphological damage and inhibited neuronal ferroptosis.

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Article Synopsis
  • Parkinson’s disease (PD) is a movement disorder linked to the loss of dopamine-producing neurons and is often accompanied by sleep disorders (SDs).
  • A study compared 36 early PD patients (31 with SDs, 5 without) and 22 healthy controls, using various questionnaires and MRI to analyze the neuroimaging features and clinical characteristics of sleep disturbances.
  • Results indicated a significantly higher prevalence of SDs in PD patients compared to controls and suggested that those with SDs experienced more severe PD symptoms, longer disease duration, and higher Hoehn and Yahr stages.
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As a novel discovered regulated cell death pattern, ferroptosis has been associated with the development of Parkinson's disease (PD) and has attracted widespread attention. Nevertheless, the relationship between ferroptosis and PD pathogenesis is still unclear. This study aims to investigate the effect of iron overload on dopaminergic (DA) neurons and its correlation with ferroptosis.

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Iron accumulation in the substantia nigra (SN) is spatially heterogeneous, yet no study has quantitatively evaluated how the texture of quantitative susceptibility maps (QSM) and R2 might evolve with Parkinson's disease (PD) and healthy controls (HC). The aim of this study was to discriminate between patients with PD and HC using texture analysis in the SN from QSM and R2 maps. QSM and R2 maps were obtained from 28 PD patients and 28 HC on a clinical 3T MR imaging scanner using 3D multi-echo gradient-echo sequence.

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Transcranial sonography (TCS) has become more popular for diagnosis of Parkinson's disease (PD), and the TCS-based computer-aided diagnosis (CAD) for PD also attracts considerable attention, in which classifier is a critical component. Broad learning system (BLS) is a newly proposed single layer feedforward neural network for classification. In BLS, the original input features are mapped to several new feature representations to form the feature nodes, and then these mapped features are expanded to enhancement nodes by random mapping in a wide sense.

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Parkinson's Disease (PD) is the most common motor neurodegenerative disease in elderly population. Transcranial sonography (TCS) has become a popular imaging tool for diagnosis of PD in clinical practice. Moreover, several pioneering work have developed the computer-aided diagnosis (CAD) for PD with the transcranial B-mode sonography (TBS).

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Background: Iron deposition within the substantia nigra (SN) has been postulated to play a vital role in Parkinson's disease (PD). The aim of this study was to explore the inherent link of PD patients between their substantia nigra iron accumulation and clinical status using quantitative susceptibility mapping (QSM) which is now considered to be the only quantitative imaging technique of brain iron deposition.

Methods: 44 PD patients and 31 age- and gender-matched healthy controls underwent quantitative susceptibility mapping (QSM) were recruited in this study.

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The present study aimed to investigate protein expression levels of intra‑ and extracranial atherosclerosis in rabbits following administration of a high‑fat diet. Rabbits were randomly divided into control (group A; n=9) and high‑fat diet (group B; n=9) groups. At week 12, tissues were sectioned from the common carotid artery (CCA) and middle cerebral artery (MCA).

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We sought to assess the safety, effectiveness and cost of 0.6 mg/kg rt-PA treatment for patients with acute mild stroke and to compare that with 0.9 mg/kg.

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Background: The distribution of cerebral ischemic infarction and stenosis in ischemic stroke may vary with age-group, race and gender. This study was conducted to understand the risk factors and characteristics of cerebral infarction and stenosis of vessels in young Chinese patients with ischemic stroke.

Methods: This was a retrospective study, from January 2007 to July 2012, of 123 patients ≤50 years diagnosed with acute ischemic stroke.

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The aim of this study was to explore the effect of dyslipidemia on intima-media thickness (IMT) of Intra- and extracranial atherosclerosis by regulating the expression of heat shock protein 70 (HSP70) in rabbits. Twenty-seven male white rabbits were randomly divided into normal control group A, high fat group B and high fat + endothelial injury operation group C (each group was 9), we measured lipids and obtained tissues from different cerebral arteries including Bilateral common carotid artery (CCA), Internal carotid artery (ICA), middle cerebral artery (MCA) and vertebral artery (VA). Pathological analysis were done, western blot analysis was used to detect the expression of HSP70 in CCA and MCA.

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Objectives: To identify the effect of internal carotid artery (ICA) stenosis, blood pressure (BP), glycated hemoglobin (HbA1c), and hemoglobin level on blood oxygenation level-dependent (BOLD) functional magnetic resonance imaging (fMRI) signals in stroke patients.

Methods: A total of 18 stroke patients with acute cerebral infarction (13 males and 5 females) and 13 age-matched healthy controls (5 males and 8 females) were recruited. Among 18 stroke patients, 8 had significant ICA stenosis (> 50%) and 10 had nonsignificant ICA stenosis (< 50%).

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