1,530 results match your criteria: "Institute of Health and Environment[Affiliation]"

Background: There is limited evidence on the effectiveness of the existing rehabilitation interventions for old adults with long coronavirus disease (COVID), which is of particular concern among old adults.

Methods: We systematically searched studies published in PubMed, EMBASE, Web of Science, Scopus, and Cochrane Library databases from their inception to 15 November 2023. Randomised controlled trials (RCTs) compared rehabilitation interventions with other controls in old adults (mean/median age of 60 or older) with long COVID were included.

View Article and Find Full Text PDF

This study sought to investigate whether association between customer verbal abuse and depressive symptoms differed by workload. We conducted a cross-sectional survey of 795 cosmetic sales workers at department store in South Korea. Experience of customer verbal abuse over the past one month was measured by using a yes/no question.

View Article and Find Full Text PDF

Physiological effects of filtering facepiece respirators based on age and exercise intensity.

PLoS One

August 2024

Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea.

During the coronavirus disease 2019 pandemic, Filtering Facepiece Respirators (FFRs) were highly effective, but concerns arose regarding their physiological effects across different age groups. This study evaluated these effects based on age and exercise intensity in 28 participants (children, young adults, and older individuals). Physiological parameters such as respiratory frequency (Rf), minute ventilation (VE), carbon dioxide production (VCO2), oxygen consumption (VO2), heart rate (HR), metabolic equivalents (METs), percutaneous oxygen saturation (SpO2) and the concentration of O2 and CO2 in the FFRs were measured during treadmill tests with and without FFRs (cup-shaped, flat-folded, and with an exhalation valve).

View Article and Find Full Text PDF

Genetic determinants of obesity in Korean populations: exploring genome-wide associations and polygenic risk scores.

Brief Bioinform

July 2024

Department of Public Health Sciences, Graduate school of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea.

East Asian populations exhibit a genetic predisposition to obesity, yet comprehensive research on these traits is limited. We conducted a genome-wide association study (GWAS) with 93,673 Korean subjects to uncover novel genetic loci linked to obesity, examining metrics such as body mass index, waist circumference, body fat ratio, and abdominal fat ratio. Participants were categorized into non-obese, metabolically healthy obese (MHO), and metabolically unhealthy obese (MUO) groups.

View Article and Find Full Text PDF

South Korea and China have implemented increasingly stringent mitigation measures to reduce the health risks from PM exposure, jointly conducting a ground-based air quality observation study in Northeast Asia. Dispersion normalized positive matrix factorization (DN-PMF) was used to identify PM sources in Seoul and Beijing and assess the effectiveness of the seasonal management programs (SMPs) through a comparative study. Samples were collected during three periods: January-December 2019, September 2020-May 2021, and July 2021-March 2022.

View Article and Find Full Text PDF

Development and validation of MRI-PDFF cutoffs for living liver donor eligibility assessment.

Liver Transpl

August 2024

Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.

Article Synopsis
  • Hepatic steatosis (HS) eligibility criteria for living donor liver transplantation (LDLT) should focus on large droplet fat, as recommended by the Banff consensus, and the study aimed to find MRI PDFF cut-offs for HS assessment in potential donors.
  • The retrospective study analyzed potential LDLT donors who underwent MRI and liver biopsy, identifying dual PDFF cut-offs for diagnosing various levels of histologic HS, achieving high sensitivity and specificity in both development and validation datasets.
  • The study found that for diagnosing histologic HS ≥30%—the common threshold for LDLT donor eligibility—the PDFF cut-offs achieved both sensitivities and specificities over 90%, and a formula was created for estimating histologic HS based on
View Article and Find Full Text PDF
Article Synopsis
  • Shiga toxin-producing E. coli (STEC) causes severe gastrointestinal issues, particularly linked to Stx2, which poses greater risks than Stx1.
  • A study of 71 strains in the O145:H28 lineage reveals the dynamic nature of Stx phages, including their acquisition, transfer, and variations affecting Stx2 production levels.
  • Short-tailed Stx2 phages are associated with higher production levels of Stx2 than long-tailed variants, highlighting genetic differences that influence these levels.
View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on Toxoplasma gondii type I strains, which are highly lethal to laboratory mice, and questions whether resistant rodent populations can exist in the wild.
  • Researchers hypothesized that wild mice in various global regions, particularly in Japan, could harbor type I strains without showing symptoms.
  • Genetic analysis of mice from Gifu and Okinawa Prefectures revealed diverse Irgb2 gene sequences, indicating that resistant mouse populations may be present in Japan, alongside known resistant populations in South Asia.
View Article and Find Full Text PDF

Weight gain, new-onset overweight or obesity, and their influencing factors during the social distancing era of the COVID-19 pandemic.

Heliyon

August 2024

Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea.

The prevalence of obesity is gradually increasing in South Korea, and the coronavirus disease 2019 (COVID-19) pandemic has accelerated the weight gain. In response to COVID-19, South Korea implemented targeted distancing measures based on the number of COVID-19 cases, rather than a full lockdown. This study focused on two subgroups that influence the rise in obesity prevalence during the early stages of the COVID-19 pandemic and explored the factors contributing to rapid weight gain in this group during this period.

View Article and Find Full Text PDF

Objective: To examine the association between patterns of alcohol consumption in the past and the risk of depression among medical aid beneficiaries and National Health Insurance beneficiaries in Korea.

Methods: We used data from the National Health Information Database (NHID) of 1,292,618 participants who underwent health checkups in 2015-16 and 2017-18. We categorized alcohol consumption into four groups: continuous high, increased, decreased, and non-consumers.

View Article and Find Full Text PDF

Malaria prevalence and associated population and ecological risk factors among women and children under 5 years in Rwanda.

Heliyon

July 2024

Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, 08826, South Korea.

Background: Malaria continues to pose a substantial public health concern in Rwanda, despite substantial progress in recent years. Little is known about effect of ecological factors and their interaction in malaria transmission. Understanding the prevalence and identifying risk factors, both population-based and ecological such as zooprophylaxis and irrigation are crucial for targeted intervention strategies.

View Article and Find Full Text PDF

Pan-lineage Mycobacterium tuberculosis reference genome for enhanced molecular diagnosis.

DNA Res

August 2024

Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8533Japan.

In Mycobacterium tuberculosis (MTB) control, whole genome sequencing-based molecular drug susceptibility testing (molDST-WGS) has emerged as a pivotal tool. However, the current reliance on a single-strain reference limits molDST-WGS's true potential. To address this, we introduce a new pan-lineage reference genome, 'MtbRf'.

View Article and Find Full Text PDF

The bidirectional effect of hyperuricemia on chronic kidney disease (CKD) underscores the importance of hyperuricemia as a risk factor for CKD. We evaluated the effect of hyperuricemia on the presence and development of CKD after considering genetic background by calculating polygenic risk scores (PRSs). We employed genome-wide association study summary statistics-excluding the United Kingdom Biobank (UKB) datasets among published CKD Gen Consortium papers-to calculate the PRSs for CKD in white background subjects.

View Article and Find Full Text PDF

Conflicting findings have been reported regarding the association between Agent Orange (AO) exposure and type 2 diabetes. This study aimed to examine whether AO exposure is associated with the development of type 2 diabetes and to verify the causal relationship between AO exposure and type 2 diabetes by combining DNA methylation with DNA genotype analyses. An epigenome-wide association study and DNA genotype analyses of the blood of AO-exposed and AO-unexposed individuals with type 2 diabetes and that of healthy controls were performed.

View Article and Find Full Text PDF

Consumer spray products (CSPs) are widely used in daily life, yet it is challenging to find products that fully disclose all components posing health risks. Existing studies primarily focus on product components or VOC quantities emitted during use. Therefore, this study aimed to measure the VOC concentrations emitted by CSPs at varying distances.

View Article and Find Full Text PDF

A Grounded Theory of Walking for Health Promotion in Older Urban Adults.

Gerontologist

October 2024

Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea.

Background And Objectives: Walking enhances the health, quality of life, and independence of older adults. However, a global decline in urban walking necessitates a re-evaluation of segmented, quantitative approaches to policies and theoretical frameworks in geriatric medicine for promoting walking among older adults. This study conceptualized the perceptions, experiences, and behaviors regarding walking, from a health promotion perspective, among older urban adults.

View Article and Find Full Text PDF

Transcriptomic Expression of T2-Inflammation Genes in Peripheral Blood Mononuclear Cells and Longitudinal Clinical Outcomes in Asthma: Insights from the COREA Study.

Lung

August 2024

Division of Allergy and Clinical Immunology, Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43 gil, Songpa-gu, Seoul, 05505, Korea.

Background: Gene expression can provide distinct information compared to clinical biomarkers in the context of longitudinal clinical outcomes in asthma patients.

Objective: This study examined the association between the gene expression levels of upstream (IL-25, IL-33, and TSLP) and downstream cytokines (IL-5, IL-4, and IL-13) in the T2 inflammatory pathway with a 12-month follow-up of exacerbation, lung function, and steroid use.

Methods: Transcriptomic sequencing analysis was performed on peripheral blood mononuclear cells from 279 adult asthmatics.

View Article and Find Full Text PDF

Introduction: Numerous studies of school-based smoking prevention programs (SSPPs) exist; however, most have been conducted from the students' perspective, and insufficient research has explored teachers' perceptions. Our study aimed to identify factors affecting overall satisfaction and operational status from the perspective of teachers participating in the SSPP.

Methods: This is a cross-sectional study analyzing data from a survey regarding the operation of an SSPP conducted by the Korea Health Promotion Institute in 2022.

View Article and Find Full Text PDF

Introduction: This study investigated the risks for all-cause death and death from cancer or cardiovascular diseases due to smoking status and behavior, focusing on differences in smoking duration and amount stratified by sex.

Methods: The integrated Korean Genome and Epidemiology Study provided data for 209770 individuals who were classified as never, former, or current smokers, based on their current smoking status. Pack-years were computed using daily average smoking amount and total smoking duration, and were categorized into quantiles separately for men and women.

View Article and Find Full Text PDF

Smoking-attributable Mortality in Korea, 2020: A Meta-analysis of 4 Databases.

J Prev Med Public Health

July 2024

Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul, Korea.

Objectives: Estimating the number of deaths caused by smoking is crucial for developing and evaluating tobacco control and smoking cessation policies. This study aimed to determine smoking-attributable mortality (SAM) in Korea in 2020.

Methods: Four large-scale cohorts from Korea were analyzed.

View Article and Find Full Text PDF

Systematic review and meta-analyses of cytisine to support tobacco cessation.

Addiction

October 2024

NHMRC Centre of Research Excellence on Achieving the Tobacco Endgame, School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, Australia.

Background And Aims: Cytisine (also known as cytisinicline) is a low-cost partial agonist of nicotinic acetylcholine receptors used to assist tobacco cessation. We aimed to review the effectiveness of cytisine for tobacco cessation and the effects of dose and co-use of behavioural or other pharmacological interventions on cessation outcomes.

Methods: We searched seven databases, Google Scholar, and reference lists of included publications for randomised controlled trials investigating use of cytisine as a tobacco cessation aid.

View Article and Find Full Text PDF

Dietary biomarkers in urine remain elusive when evaluating diet-induced oxidative stress and inflammation. In our previous study, we conducted a randomized controlled crossover trial to compare the short-term (4-weeks) effects of the balanced Korean diet (BKD) with Western diets, including the 2010 dietary guidelines for Americans (2010 DGA) and typical American diet (TAD), on various metabolic indices in obese Korean adults. Building on this work, the current research focuses on the impact of these dietary interventions on oxidative stress (d-ROMs and BAP) and inflammation (CRP, TNF-α, IL-6, IL-1β, MCP-1) biomarkers in serum, and the concurrent urine metabolomes.

View Article and Find Full Text PDF

Background: Excess mortality during the COVID-19 pandemic provides a comprehensive measure of disease burden, and its local variation highlights regional health inequalities. We investigated local excess mortality in 2020 and its determinants at the community level.

Methods: We collected data from 250 districts in South Korea, including monthly all-cause mortality for 2015-2020 and community characteristics from 2019.

View Article and Find Full Text PDF