Publications by authors named "Seong-Yoon Kim"

Objective: This study aims to explore the association between work-related stress of healthcare workers in response to the coronavirus disease-2019 (COVID-19) pandemic and their depressive symptoms. Additionally, it focuses on the impact of insomnia symptoms, interpersonal factors, and resilience on depressive symptoms.

Methods: The results of an anonymous survey of 329 healthcare workers were analyzed, including the Stress and Anxiety to Viral Epidemics-3 items, Insomnia Severity Index, Interpersonal Needs Questionnaire, Connor-Davidson Resilience Scale-2 items, and Patient Health Questionnaire-9 items.

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Monitoring mosquito populations is essential for controlling mosquito-borne diseases, and the selection of mosquito traps should be tailored to specific surveillance objectives. Here, we tested four mosquito traps for their efficiency and applicability: the Nozawa-style black light trap (BLT), BG-sentinel trap II (BGT), UV-LED Blackhole Plus Mosquito Buster trap (LED), and digital mosquito monitoring system (DMS). The traps were rotated weekly for a 24 h cycle at the same location for 13 weeks.

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This study investigated the prevalence of and in 494 engorged ticks collected from various animal hosts, including cattle, horses, sheep, chickens, dogs, and cats, in six regions of northern Kyrgyzstan. Ten tick species, belonging to two families and six genera, were identified based on , 16S rRNA, and genes: (26.5%), (18.

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Ticks are important vectors of the tick-borne encephalitis virus (TBEV). In Kyrgyzstan, the livestock farming trade and nomadic lifestyle enable tick-borne diseases to be imported from neighboring countries, but there are few relevant studies. In this study, we collected 40 ticks from cattle in Kyrgyzstan.

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Background: Evaluating the activities of daily living (ADL) is an important factor for diagnosing dementia. The Everyday Cognition (ECog) scale was developed to measure ADL changes that were correlated with specific neuropsychological impairments. A short form of the ECog (ECog-12) was also developed, consisting of 12 items, two from each of the six cognitive domains of the ECog.

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Article Synopsis
  • - The study conducted a genome-wide association study (GWAS) on Parkinson's disease (PD) specific to the Korean population, including 1050 patients and 5000 controls, to explore ethnicity and sex-related genetic factors.
  • - Key findings revealed nine single nucleotide polymorphisms (SNPs) associated with PD, particularly in the SNCA and PARK16 loci; however, significant associations varied between genders, with notable SNPs identified in females and a strong but inconclusive marker in males.
  • - Results indicate that genetic contributions to sporadic PD differ by ethnicity and sex, highlighting the importance of tailored research to understand the disease's genetic background across diverse populations.
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Tick-borne pathogens (TBPs), transmitted by the bites of ticks, are of great medical and veterinary importance. They include bacteria, viruses, and protozoan parasites. To provide fundamental data on the risk of tick contact and public health strategies, we aimed to perform a molecular investigation on four tick-borne bacterial pathogens in ticks collected from humans across the Republic of Korea (ROK) in 2021.

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Severe fever with thrombocytopenia syndrome (SFTS) is a tick-borne infectious disease caused by Dabie bandavirus, commonly called SFTS virus (SFTSV). In the Republic of Korea (ROK), 1,504 cases of SFTS have been reported since the first human case was identified in 2013 until 2021. However, no case exists to provide molecular evidence between questing tick and patients with confirmed SFTS in the same living environment.

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Background: The echocardiographic assessment of diastolic function in the context of atrial fibrillation (AF) has been controversial and can be challenging and labor-intensive. We aimed to assess the actual practice of diastolic evaluation in AF in our community hospital echocardiography laboratory and to improve clinical performance by a quality improvement project.

Methods: We reviewed 244 echocardiograms in patients with AF at the time of echocardiography from November 2019 to November 2020 (pre-intervention phase).

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Human granulocytic anaplasmosis (HGA) and human monocytic ehrlichiosis (HME) are zoonotic tick-borne diseases transmitted via tick bites. To determine the state of human and infections caused by tick bites in the Republic of Korea (ROK), we conducted a nationwide investigation of human cases of tick bites in 2020. A total of 180 ticks were obtained, comprising (70.

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Article Synopsis
  • - The study explored how amyloid deposition and cerebral small vessel disease (CSVD) affect brain structure in older adults with cognitive impairment by analyzing a sample of 245 participants categorized based on their amyloid levels and white matter hyperintensities (WMH) severity.
  • - Researchers used source-based morphometry to identify 13 components in brain networks and compared structural covariance networks (SCN) across different participant groups, focusing on how amyloid and CSVD influence connectivity.
  • - Findings indicated that amyloid and CSVD are linked to decreased connectivity within certain brain networks (like the salience and default mode networks) and altered relationships between multiple networks, highlighting the importance of these factors in assessing brain network disruptions.
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Article Synopsis
  • - The BICWALZS study enrolled 1,013 participants aged around 72.8 years to explore chronic cerebrovascular diseases related to Alzheimer's, with a majority being female (65.0%) from October 2016 to December 2020.
  • - Participants underwent a comprehensive series of assessments, including clinical evaluations, blood tests, neuropsychological tests, MRI, PET scans, and genetic sampling, focusing on cognitive health and dementia types.
  • - Findings highlighted varying cognitive statuses among participants, with specific classification into groups such as mild cognitive impairment and different dementia types, aligning with existing dementia research, emphasizing the study's methodology and baseline results.
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Background And Purpose: Everyday Cognition (ECog) has been widely used to differentiate individuals with mild cognitive impairment (MCI) and dementia from normal elderly individuals. It has also been used to assess subjective cognitive decline (SCD). This study investigated the feasibility of using ECog as a screening measure for SCD in community-dwelling elderly individuals.

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Background: This study evaluated the relationship between guideline adherence for heart failure (HF) with reduced ejection fraction (HFrEF) at discharge and relevant clinical outcomes in patients with acute HF with preserved ejection fraction (HFpEF) with or without atrial fibrillation (AF).

Methods: We analyzed Korean Acute Heart Failure Registry data for 707 patients with HFpEF with documented AF and 687 without AF. Guideline adherence was defined as good or poor according to the prescription of angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, β-blockers, and mineralocorticoid receptor antagonists.

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Accumulating evidence indicates that amyloid-beta (Aβ) deposition and biogenic aldehyde accumulation contribute to the pathogenesis of neurodegenerative diseases. Human aldehyde dehydrogenase 2 (ALDH2) metabolizes biogenic aldehydes produced in the brain to prevent damage. However, r671G>A, a single nucleotide polymorphism of ALDH2, causes aldehyde accumulation and decreased ALDH2 activity.

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The occurrence of tick-borne infectious diseases, including zoonotic babesiosis, has become a serious concern in recent years. In this study, we detected Babesia spp. using polymerase chain reaction (PCR) amplification of the 18S rRNA of the parasites isolated from ixodid ticks collected from small mammals in the Republic of Korea (ROK).

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Alzheimer's disease (AD) is a progressive neurodegenerative disease associated with a complex genetic etiology. Besides the apolipoprotein E ε4 (APOE ε4) allele, a few dozen other genetic loci associated with AD have been identified through genome-wide association studies (GWAS) conducted mainly in individuals of European ancestry. Recently, several GWAS performed in other ethnic groups have shown the importance of replicating studies that identify previously established risk loci and searching for novel risk loci.

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Multiple neurological complications have been associated with the coronavirus disease-19 (COVID-19), which is caused by severe acute respiratory syndrome coronavirus 2. This is a narrative review to gather information on all aspects of COVID-19 in elderly patients with cognitive impairment. First, the following three mechanisms have been proposed to underlie the neurological complications associated with COVID-19: 1) direct invasion, 2) immune and inflammatory reaction, and 3) hypoxic brain damage by COVID-19.

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Background: Cancer patients suffer from worse coronavirus disease-2019 (COVID-19) outcomes. Whether active oncologic treatment is an additional risk factor in this population remains unclear. Therefore, here we have conducted a systematic review and meta-analysis to summarize the existing evidence for the effect of active oncologic treatment on COVID-19 outcomes.

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Lyme disease is a tick-borne zoonotic disease caused by sensu lato (s. l.) via transmission cycles involving competent tick vectors and vertebrate reservoirs.

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Background: β-blockers (BBs) are considered primary therapy in stable heart failure (HF) with reduced ejection fraction (HFrEF) without atrial fibrillation (AF); evidence-based benefits of BB on outcome have been documented. However, BBs have not been shown to improve mortality or reduce hospital admissions in HF patients with AF. This study assessed the relationship between BBs at discharge and relevant clinical outcomes in acute heart failure (AHF) patients with AF.

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We investigated the association between herpes zoster (HZ) and dementia, and the effects of antiviral therapy on the risk of dementia. We used the National Health Insurance Service-National Sample Cohort in South Korea to identify individuals that were followed from January 1, 2002, to December 31, 2013. Occurrences of HZ and dementia were identified using the relevant diagnostic codes.

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Objectives: Chigger mites are vectors for scrub typhus. This study evaluated the annual fluctuations in chigger mite populations and infections in South Korea.

Methods: During 2006 and 2007, chigger mites were collected monthly from wild rodents in 4 scrub typhus endemic regions of South Korea.

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Background: Neuropsychological tests (NPTs) are important tools for informing diagnoses of cognitive impairment (CI). However, interpreting NPTs requires specialists and is thus time-consuming. To streamline the application of NPTs in clinical settings, we developed and evaluated the accuracy of a machine learning algorithm using multi-center NPT data.

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Babesiosis is a tick-transmitted intraerythrocytic zoonosis. In Korea, the first mortalities were reported in 2005 due to Babesia sp. detection in sheep; herein we report epidemiological and genetic characteristics of a second case of babesiosis.

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