1.Research trends in dietary behaviors and nutrition education among individuals with developmental disabilities in Korea: a scoping review (2015–2025)
Nakyung KWAK ; Wonyeong PARK ; Yu-Ri KIM ; Jieun OH
Korean Journal of Community Nutrition 2026;31(1):1-20
Objectives:
We mapped trends in studies on dietary behaviors, nutritional status, and nutrition-related education among individuals with developmental disabilities in Korea over the past decade to identify research gaps and inform future research and policy development.
Methods:
A scoping review was conducted using three major Korean academic databases (RISS, KISS, and DBpia). Studies published between 2015 and September 2025 were identified using combinations of keywords related to developmental disabilities, dietary behavior, nutrition, and health-related interventions. Eligible studies included empirical studies and secondary research (e.g., systematic or scoping reviews) conducted in Korea that focused on dietary behaviors, nutrition, health promotion, or nutrition-related education for individuals with developmental disabilities. Thirty-six studies met our inclusion criteria and were analyzed based on study design, study population, disability type, research topic, and publication period.
Results:
Observational quantitative, qualitative, intervention-based experimental, and evidence synthesis accounted for 27.8%, 13.9%, 22.2%, and 36.1% of all included studies, respectively. Children and adolescents (27.8%) and adults (25.0%) were the most frequently studied populations, with limited studies focusing on professionals or teachers. Most studies targeted individuals with developmental disabilities as a combined group (61.1%), followed by those specifically targeting autism spectrum disorder. Research topics included dietary behaviors and nutritional status, nutrition-related education and interventions, health promotion, and medical or clinical issues, with many small-scale and shortterm intervention studies.
Conclusion
Although research on dietary and nutrition-related issues among individuals with developmental disabilities in Korea has expanded in scope and methodology, significant limitations remain. Future research should adopt longitudinal and community-based approaches, incorporate diverse populations, and strengthen policy-oriented nutrition support systems to promote sustainable health and quality of life for individuals with developmental disabilities.
2.Influence of food literacy on shortand long-term healthy eating intentions among adolescent and adult convenience store users:An application of the extended theory of planned behavior
Wonyeong PARK ; Hae Jin PARK ; Suah MOON ; Jieun OH
Nutrition Research and Practice 2025;19(6):917-931
BACKGROUND/OBJECTIVES:
The present study aimed to analyze the effect of food literacy on the short-term and long-term healthy eating intentions of convenience store consumers using the Extended Theory of Planned Behavior (ETPB) framework.
SUBJECTS/METHODS:
A cross-sectional online survey was conducted in South Korea in September 2023. A total of 397 Korean participants were recruited through convenience sampling. The independent variables included food literacy, attitudes, subjective norms, and perceived behavioral control. The χ2 tests, t-tests, correlation analysis, and hierarchical regression were performed, with statistical significance set at P < 0.05.
RESULTS:
Adolescents showed significantly higher food literacy than adults (P < 0.01).In contrast, adults demonstrated higher scores in attitude (P < 0.01), subjective norm (P < 0.05), perceived behavioral control (P < 0.01), and short-term (P < 0.001) and long-term healthy eating intentions (P < 0.001). When food literacy was included as a variable in the hierarchical regression analysis, the explanatory power for short-term and long-term healthy eating intentions increased by 1.7% and 5.3%, respectively (P < 0.001).
CONCLUSION
The study highlights the need for customized nutrition education and continuous, systematic education on eating habits to enhance food literacy.
3.Antiallodynic and anti-inflammatory effects of intrathecal R-PIA in a rat model of vincristine-induced peripheral neuropathy
Kyungmi KIM ; Wonyeong JEONG ; In Gu JUN ; Jong Yeon PARK
Korean Journal of Anesthesiology 2020;73(5):434-444
Background:
Studies investigating the correlation between spinal adenosine A1 receptors and vincristine-induced peripheral neuropathy (VIPN) are limited. This study explored the role of intrathecal N6-(2-phenylisopropyl)-adenosine R-(-)isomer (R-PIA) in the rat model of VIPN.
Methods:
Vincristine (100 μg/kg) was intraperitoneally administered for 10 days (two 5-day cycles with a 2-day pause) and VIPN was induced in rats. Pain was assessed by evaluating mechanical hyperalgesia, mechanical dynamic allodynia, thermal hyperalgesia, cold allodynia, and mechanical static allodynia. Biochemically, tumor necrosis factor-alpha (TNF-α) level and myeloperoxidase (MPO) activity were measured in the tissue from beneath the sciatic nerve.
Results:
Vincristine administration resulted in the development of cold allodynia, mechanical hyperalgesia, thermal hyperalgesia, mechanical dynamic allodynia, and mechanical static allodynia. Intrathecally administered R-PIA (1.0 and 3.0 μg/10 μl) reversed vincristine-induced neuropathic pain (cold and mechanical static allodynia). The attenuating effect peaked 15 min after intrathecal administration of R-PIA after which it decreased until 180 min. However, pretreatment with 1,3-dipropyl-8-cyclopentylxanthine (DPCPX, 10 μg/10 μl) 15 min before intrathecal R-PIA administration significantly attenuated the antiallodynic effect of R-PIA. This antiallodynic effect of intrathecal R-PIA may be mediated through adenosine A1 receptors in the spinal cord. Intrathecally administered R-PIA also attenuated vincristine-induced increases in TNF-α level and MPO activity. However, pretreatment with intrathecal DPCPX significantly reversed this attenuation.
Conclusions
These results suggest that intrathecally administered R-PIA attenuates cold and mechanical static allodynia in a rat model of VIPN, partially due to its anti-inflammatory actions.

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