Chaewon Shin

BACKGROUND: Short-chain fatty acids are exclusively produced by gut microbiota and are reduced in feces of patients with Parkinson's disease (PD). The objective of this study was to conduct a case-control study on peripheral concentration of short-chain fatty acids based on evidence of pathologic changes in the blood-brain barrier in PD and the possible role of short-chain fatty acids in blood-brain barrier permeability. METHODS: The plasma short-chain fatty acid concentration was measured in 38

Additional Supporting Information may be found in the online version of this article. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.

The study demonstrated that the NMS burdens are not associated with iron accumulation in the deep nuclei of patients with PD. These results suggest that future neuroimaging studies on the pathology of NMSs in PD should use more specific and detailed clinical tools and recruit PD patients with severe NMSs.

Background and purpose The aim was to analyze the characteristics and progression of cognitive dysfunction in non‐demented idiopathic rapid eye movement sleep behavior disorder ( iRBD ) patients with baseline olfactory function. Methods From a prospective polysomnography‐confirmed iRBD cohort, 25 patients (16 patients in 2‐year follow‐up) and 13 normal controls were included. Initial and 2‐year follow‐up cognitive functions were analyzed with olfactory function and 18 F‐fluorinated‐ N ‐3‐fluorop

BACKGROUND: There have been epidemiological studies of Huntington's disease (HD) in various populations and nations. Only a few studies describing clinical characteristics have been reported in Asia. OBJECTIVE: To conduct preliminary analyses of demographic, clinical and genetic characteristics of HD in South Korea. METHODS: From 1994 to 2011, thirty six subjects were diagnosed as HD in Seoul National University Hospital. Demographic, clinical and genetic data were carefully analyzed in all subj

The only characteristic of alpha-synuclein (AS) accumulation in the gastrointestinal (GI) tract of Parkinson's disease (PD) found in pathological studies is the "rostrocaudal gradient," which describes the more frequent presence of AS accumulation in the upper GI tract than in the lower GI tract. This study aimed to determine the diagnostic accuracy and identify predictors of AS accumulation in the GI tract of PD patients. The frequency of AS accumulation in the GI tract was compared between PD

Pathological studies on peripheral tissues have been conducted in patients with idiopathic rapid eye movement sleep behaviour disorder (iRBD) to investigate potential prodromal biomarkers before the development of overt synucleinopathies (online supplemental table 1). However, no studies have evaluated the in vivo tissues of the upper gastrointestinal (GI) tract in the iRBD population. Moreover, methodological heterogeneity makes it difficult to directly compare the results of each study on peri

OBJECTIVE: This study aimed to evaluate whether a larger tissue volume increases the sensitivity of detecting alpha-synuclein (AS) pathology in the gastrointestinal (GI) tract. METHODS: Nine patients with Parkinson's disease (PD) or idiopathic rapid eye movement sleep disorder (iRBD) who underwent GI operation and had full-depth intestinal blocks were included. All patients were selected from our previous study population. A total of 10 slides (5 serial sections from the proximal and distal bloc