Publications by authors named "Jung Hee Won"

Background: Based on the compelling experimental evidence supporting apelin's beneficial effects on muscle metabolism, our study aimed to evaluate the role of circulating apelin levels as a biomarker for muscle health in humans.

Methods: This investigation employed a cross-sectional design, encompassing 237 community-dwelling older adults aged ≥65 years who underwent comprehensive geriatric evaluations in South Korea. Sarcopenia diagnosis was based on Asian-specific criteria, and serum apelin concentrations were determined using enzyme immunoassay techniques.

View Article and Find Full Text PDF

Glioblastoma multiforme (GBM) is the most lethal type of primary brain tumor, necessitating the discovery of reliable serum prognostic biomarkers. This study aimed to investigate the prognostic value of serum Interleukin-6 (IL-6) in GBM patients. Bioinformatics analysis via gene set enrichment analysis was conducted on The Cancer Genome Atlas RNA-seq data to explore the pathways enriched in samples with high expression.

View Article and Find Full Text PDF

Context: Experimental evidence indicates that resistin, an adipokine, negatively impacts muscle metabolism by hindering myogenesis.

Objective: To explore resistin's potential as a biomarker of muscle health in humans by examining the relationship between circulating resistin levels and sarcopenia in older adults.

Design And Setting: A case-control study conducted in a geriatric clinical unit.

View Article and Find Full Text PDF
Article Synopsis
  • BMP-7 is known for its positive effects on bone and muscle health, but its impact on human muscle health, particularly in older adults, is not well-studied.
  • A study involving 182 older adults in South Korea found no significant differences in serum BMP-7 levels between those with and without sarcopenia, nor did it correlate with muscle strength or performance.
  • The results suggest that serum BMP-7 may not be a useful biomarker for assessing muscle health or sarcopenia in the elderly, despite previous experimental findings.
View Article and Find Full Text PDF
Article Synopsis
  • Sclerostin is primarily known for its role in bone health but this study investigates its potential link to frailty in older adults, highlighting its broader impact on health.* -
  • Blood samples from 244 seniors were analyzed, revealing that higher sclerostin levels were significantly associated with increased frailty, as measured by two validated methods.* -
  • The results suggest that sclerostin could serve as a valuable biomarker for assessing frailty, indicating a need for further research on its implications for the health of the elderly.*
View Article and Find Full Text PDF

Background: Breathlessness shares aging mechanisms with frailty and sarcopenia.

Research Question: Are frailty and sarcopenia associated with breathlessness itself?

Study Design And Methods: We analyzed data from a population-based, prospective cohort study of 780 community-dwelling older adults. Breathlessness was defined using the modified Medical Research Council dyspnea scale (≥ 2 points) and the COPD Assessment Test (≥ 10 points).

View Article and Find Full Text PDF

Background: Uric acid (UA), the terminal breakdown product of purine metabolism, possesses contradictory roles, functioning both as an inflammatory mediator and as an antioxidant. Its clinical relevance, particularly in geriatric populations, remains a topic of ongoing debate. Aiming to elucidate whether circulating UA is detrimental or beneficial to human health, we investigate the association between serum UA concentrations and the frailty index-a comprehensive measure of biological aging in a nationally representative cohort of community-dwelling older adults.

View Article and Find Full Text PDF
Article Synopsis
  • HCC (Hepatocellular carcinoma) is a common cancer, but the reasons for resistance to the treatment drug sorafenib are not thoroughly understood.
  • A study utilized machine learning to identify that unphosphorylated interferon-stimulated genes (U-ISGs) and the U-ISGF3 complex are linked to sorafenib resistance in liver cancer cells.
  • The findings suggest that targeting the U-ISGF3 complex could help overcome sorafenib resistance in patients, indicating its potential relevance for treatment strategies.
View Article and Find Full Text PDF

Background/aims: Despite the possible role of systemic low-grade inflammation on frailty, the majority of previous studies have focused solely on the phenotypic frailty with limited participant numbers, thereby weakening the evidence supporting the notion that circulating C-reactive protein (CRP) could be a potential frailty biomarker.

Methods: This study is a nationally representative, population-based, cross-sectional analysis from the Korea National Health and Nutrition Examination Survey, involving 5,359 participants aged 65 and older. We generated a deficit accumulation frailty index (FI) based on 38 items, encompassing physical, cognitive, psychological, and social status.

View Article and Find Full Text PDF

Background: South Korea faces a critical challenge with its rapidly declining fertility rates and an increasingly aging population, which significantly impacts the country's blood supply and demand. Despite these nationwide trends, regional disparities in blood supply and demand have not been thoroughly studied.

Methods: This research utilized blood donation data from the Korean Red Cross and blood transfusion data from the Health Insurance Review and Assessment Service.

View Article and Find Full Text PDF

Sarcopenia, which is characterized by an age-related decline in muscle mass and function, poses significant challenges to geriatric care. Its definition has evolved from muscle-specific criteria to include muscle mass, muscle function, and physical performance, recognizing sarcopenia as a physical frailty. Sarcopenia is associated with adverse outcomes, including mortality, falls, fractures, cognitive decline, and admission to long-term care facilities.

View Article and Find Full Text PDF
Article Synopsis
  • * Involving 42,132 participants aged 65 and older, the study found that higher anticholinergic burden and chronic polypharmacy led to increased odds of functional decline and higher mortality rates.
  • * The results indicated that anticholinergic burden is a stronger predictor of functional decline than chronic polypharmacy, highlighting the need to monitor medication use in elderly populations to reduce mortality risk.
View Article and Find Full Text PDF

In the face of an ever-increasing wave of an aging population, this paper provides an update on the current status of geriatric medicine in Korea, comparing it with global initiatives and suggesting future directions. Older adults require a multifaceted approach, addressing not only comorbidity management but also unmet complex medical needs, nutrition, and exercise to prevent functional decline. In this regard, the World Health Organization's Integrated Care for Older People guidelines underscore the importance of patient-centered primary care in preventing a decline in intrinsic capacity.

View Article and Find Full Text PDF
Article Synopsis
  • In vitro and animal studies suggest lumican promotes bone and muscle health by enhancing bone formation and muscle growth while inhibiting bone loss.
  • A study involving 134 older adults revealed those with osteosarcopenia had significantly lower serum lumican levels, with a notable odds ratio indicating a higher risk linked to decreased lumican.
  • Higher serum lumican levels were associated with greater bone mass and grip strength, supporting the idea that lumican could be a useful biomarker for assessing risks related to osteosarcopenia, osteoporosis, and sarcopenia in older adults.
View Article and Find Full Text PDF

Background: This study aimed to validate the proposed Korean Working Group on Sarcopenia (KWGS) guideline, which introduces the concept of functional sarcopenia, in older Korean adults.

Methods: Data from the Aging Study of Pyeongchang Rural Area, a longitudinal cohort of community-dwelling older adults, were utilized to compare frailty status and institutionalization-free survival among participants according to sarcopenia status. Based on the KWGS guideline, severe sarcopenia was defined as low muscle mass and strength with slow gait speed; sarcopenia (not severe) was defined as low muscle mass with low muscle strength or slow gait speed; and functional sarcopenia was defined as low muscle strength and slow gait speed without low muscle mass.

View Article and Find Full Text PDF

Backgruound: Despite the protective effects of stromal cell-derived factor 1 (SDF-1) in stimulating muscle regeneration shown in experimental research, there is a lack of clinical studies linking circulating SDF-1 concentrations with muscle phenotypes. In order to elucidate the role of SDF-1 as a potential biomarker reflecting human muscle health, we investigated the association of plasma SDF-1 levels with sarcopenia in older adults.

Methods: This cross-sectional study included 97 community-dwelling participants who underwent a comprehensive geriatric assessment at a tertiary hospital in South Korea.

View Article and Find Full Text PDF

The brain houses vital hormonal regulatory structures such as the hypothalamus and pituitary gland, which may confer unique susceptibilities to critical illness-related corticosteroid insufficiency (CIRCI) in patients with neurological disorders. In addition, the frequent use of steroids for therapeutic purposes in various neurological conditions may lead to the development of steroid insufficiency. This abstract aims to highlight the significance of understanding these relationships in the context of patient care and management for physicians.

View Article and Find Full Text PDF

Background/objectives: Maintaining total muscle mass in the older adults with swallowing difficulty (dysphagia) is important for preserving swallowing function. Increasing protein intake can help sustain lean body mass in the older adults. The aim of this study was to evaluate the effect of various high-protein texture-modified foods (HPTMFs) on muscle mass and perform dietary assessment in ≥ 65-yrs-old patients with dysphagia.

View Article and Find Full Text PDF

Purpose: This study aims to identify unmet needs and barriers for improving inpatient care for older adults at an academic hospital in Korea by using a qualitative focus group design and the Age-Friendly Health Systems (AFHS) framework.

Patients And Methods: A total of 14 healthcare providers and employees participated in focus group interviews. Participants included medical doctors, registered nurses, a receptionist, a patient transporter, a pharmacist, a physical therapist, and a social worker.

View Article and Find Full Text PDF

Background: Fluoride treatment is one of the most effective dental caries prevention methods. To continuously prevent dental caries, stably immobilizing the fluoride on the tooth enamel is highly desirable. This study aimed to evaluate the remineralization of tooth enamels by one-pot coating using polydopamine and fluoride ions.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to analyze the trend of frailty prevalence in older adults in South Korea from 2008 to 2020 to guide healthcare policies for the elderly.
  • Using data from the Korea National Health and Nutrition Examination Survey, researchers defined frailty with a specific index and observed a significant decrease in frailty prevalence from 41.1% in 2008 to 23.1% in 2020.
  • Factors like certain chronic diseases increased over time, but issues like chewing difficulties and smoking decreased, suggesting improvements in healthcare and preventive measures may have positively impacted older adult health.
View Article and Find Full Text PDF

Background: Dysphagia is a common problem with potentially serious consequences including malnutrition, dehydration, pneumonia, and death. However, there are challenges in screening for dysphagia in older adults. We assessed the feasibility of using the Clinical Frailty Scale (CFS) as a risk assessment tool for dysphagia.

View Article and Find Full Text PDF

Background: We aimed to demonstrate the associations between social interactions within social distancing norms during the coronavirus disease 2019 (COVID-19) pandemic and cognitive function among South Korean older adults.

Methods: Data from the 2017 and 2020 Survey of Living Conditions and Welfare Needs of Korean Older Persons were used. There were 18,813 participants (7,539 males; 11,274 females).

View Article and Find Full Text PDF

The brain houses vital hormonal regulatory structures such as the hypothalamus and pituitary gland, which may confer unique susceptibilities to critical illness-related corticosteroid insufficiency (CIRCI) in patients with neurological disorders. In addition, the frequent use of steroids for therapeutic purposes in various neurological conditions may lead to the development of steroid insufficiency. This abstract aims to highlight the significance of understanding these relationships in the context of patient care and management for physicians.

View Article and Find Full Text PDF