Publications by authors named "H K Yoon"

Serological tests for needs local validation as the diagnostic accuracy may vary depending on the prevalence of . . This study examined the diagnostic performance of two ELISA, GastroPanel (GastroPanel ELISA; Biohit Oyj) and GENEDIA (GENEDIA .

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Background: This study investigates the impact of cognitive impairments on the acoustic characteristics of speech and explores the development of a non-invasive AI model for the diagnosis of Mild Cognitive Impairment (MCI).

Method: Specifically, using conversational speech data from MCI patients and healthy controls in the DementiaBank, the autocorrelation function (ACF) of the speech signal according to delay time was analyzed. Through such analysis, key acoustic indicators of the speech signal such as τ, ϕ, and τ, were calculated, and these were used to employ the concept of pitch strength in the diagnosis of MCI.

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Background: Although previous studies have demonstrated cognitive impairment in elderly individuals with sarcopenia and its neuronal substrates, there is no comprehensive model integrating multiple brain pathologies to predict cognitive impairment associated with sarcopenia. The aim of this study was to explore a comprehensive prediction model for cognitive impairment in sarcopenia using multimodal neuroimaging methods in non-demented older adults.

Method: This cross-sectional study used data from the Catholic Aging Brain Imaging Database study, a population-based cohort study with magnetic resonance imaging (MRI) scans, positron emission tomography (PET) scans, and clinical data.

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Aging is associated with declines in memory function and significant change in gut microbiota. In this study, we investigated how exercise affects age-related memory decline and inflammation, and gut microbiota diversity. Bl6 mice were divided into control, control and exercise, old, and old and exercise groups.

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Aqueous two-phase systems (ATPSs) have primarily been developed in the form of emulsions to enhance their utilization in green and biocompatible applications. However, numerous challenges have arisen in forming stable and processable water-in-water (W/W) emulsion systems, as well as in fine-tuning the interconnectivity of their internal structure, which can significantly impact their performance. To effectively address these challenges, we elucidate, for the first time, the root cause of the poor stability of W/W emulsions.

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