Effects of concurrent training consisting of resistance and high-intensity interval training in hypoxic conditions on body composition, cardiometabolic risk factor, and cardiorespiratory fitness factors in middle-aged obese women

Start Date19 Nov 2025

Sponsor / Collaborator

Dongseo University

100 Clinical Results associated with Dongseo University

0 Patents (Medical) associated with Dongseo University

510

Literatures (Medical) associated with Dongseo University

31 Dec 2025·Women's health nursing (Seoul, Korea)

Factors affecting menstrual cycle changes following COVID-19 vaccination in Korean women of reproductive age: an exploratory correlational study

Article

Author: Lee, Sunhee ; Park, Hyun-Jung ; Bae, Kyung-Eui

Purpose: This study aimed to examine the impact of coronavirus disease 2019 (COVID-19) vaccination on menstrual cycle changes among Korean women of reproductive age.Methods: This exploratory correlational study used data from an online, self-administered questionnaire obtained from the Korea Social Science Data Center database. The survey assessed menstrual cycle changes following COVID-19 vaccination among Korean women of reproductive age (15–49 years) who were menstruating regularly and had a history of COVID-19 vaccination. Data were collected between February and March 2023. A total of 227 participants who completed the online questionnaire were included in the analysis.Results: The risk of menstrual cycle changes was higher among older women (reference group: 40–49 years; 15–19 years: odds ratio [OR], 0.25 [p=.006]; 30–39 years: OR, 0.03 [p=.030]), women with obesity (reference group: body mass index [BMI] >23 kg/m2; BMI <18.5 kg/m2: OR, 0.03 [p=.030]; BMI 18.5–22.9: OR, 0.002 [p=.002]), and unmarried women (OR, 3.02). Increased risk was also observed among participants with a history of COVID-19 infection (OR, 3.46; p=.015), those who received the second or lower dose of the vaccine, and those reporting excessive menstrual flow (OR, 2.07; p=.015), intermenstrual symptoms (OR, 2.72; p=.037), or irregular menstruation (OR; 5.37, p<.001).Conclusion: Menstrual cycle changes following COVID-19 vaccination appear to be influenced by multiple factors, particularly the interaction between a history of irregular menstruation and environmental conditions. Further longitudinal studies and tailored management strategies for specific subgroups, including unmarried and obese women, are needed to support women’s health and quality of life.

01 Dec 2025·Pharmacological Reports

Solcumin™: a functional hybrid particle with potent anti-inflammatory and antioxidant activities and enhanced storage stability

Article

Author: Jeong, Jinhee ; Kim, Dongwon ; Yoon, In-Soo ; Jeong, Jongwook ; Hwang, Sujin ; Jeon, Byoung Seung ; Hwang, Ee Taek ; Lee, Chan Yang ; Lee, Chan Hee

BACKGROUND:

Separation and encapsulation provide a practical and effective strategy for the targeted delivery of bioactive components in formulation technologies. This study aimed to develop an inorganic Pickering-mediated formulation, Solcumin™, for food-derived tetrahydrocurcumin (THC), and to evaluate its long-term storage stability and in vitro bioactivity.

METHODS:

In this study, we investigated the application of inorganic Pickering-mediated techniques to encapsulate food-derived bioactive compounds. Solcumin™ was industrially produced and subjected to physicochemical analysis, stability testing in distilled water over 8 weeks at 25 °C, and in vitro bioactivity assessment, including antioxidant (DPPH, ABTS), cytotoxicity (HDFn cells), and anti-inflammatory (NO, IL-6) assays.

RESULTS:

Solcumin™ contained 11.5% tetrahydrocurcumin (THC) and exhibited excellent stability in distilled water, retaining 85% of its initial THC content after 8 weeks of storage at 25°C, while effectively preventing leaching and oxidation. Furthermore, Solcumin™ demonstrated notable anti-inflammatory activity, inhibiting nitric oxide (NO) production by approximately 89.11% and reducing interleukin-6 (IL-6) expression in a dose-dependent manner. It also exhibited antioxidant activity, as indicated by radical scavenging activity in both 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assays at a concentration of 100 µg/mL.

CONCLUSIONS:

To the best of our knowledge, this is the first study to report the development of biomineralization-based Solcumin™ and evaluate its in vitro bioactivity.

01 Dec 2025·Science of Diabetes Self-Management and Care

Psychometric Properties of the Short-Form Revised Lifestyle Evaluation Scale for Metabolic Syndrome–Korean

Article

Author: Kim, Chun-Ja ; Schlenk, Elizabeth A. ; Kim, Dae Jung ; Kang, Se-Won ; Seo, Shinae

Purpose:

The purpose of the study was to evaluate the validity and reliability of a short-form Revised Lifestyle Evaluation Scale for Metabolic Syndrome (RLES-MS)–Korean.

Methods:

A cross-sectional survey was administered to 211 people with diabetes who were taking medication for metabolic syndrome and attending an outpatient clinic at a university-affiliated hospital in Suwon, Korea. Structured questionnaires were used for the psychometric evaluation. The RLES-MS validity was examined using exploratory factor analysis, and reliability was assessed using Cronbach’s alpha and McDonald’s omega.

Results:

The interitem correlation analyses identified 2 low-correlation items, resulting in a 15-item scale. Factor analysis identified 4 dimensions of the RLES-MS: healthy eating and being active, monitoring and managing target goals, healthy coping, and awareness and taking medication. The 4-factor model explained 58.65% of the total variance. Item 8 (taking medication) scored the highest, and Item 2 (healthy eating) scored the lowest, followed by Item 13 (monitoring and managing the target values). Overall, Cronbach’s alpha and McDonald’s omega were .864 and .866, respectively. The RLES-MS showed significant associations with quality of life ( r = .426, P < .001), self-efficacy ( r = .530, P < .001), depressive symptoms ( r = −.430, P < .001), and A1C ( r = −.163, P = .018).

Conclusions:

The RLES-MS showed good validity and moderate reliability, supporting its clinical use for evaluating lifestyle behaviors in Korean people with diabetes and metabolic syndrome.

News (Medical) associated with Dongseo University

06 Sep 2023

·www.sciencedaily.com

Researchers develop highly efficient and stable photoelectrode for water splitting using organic semiconductors

A recent study has unveiled a significant breakthrough in photoelectrode development. A team of researchers, led by Professor Ji-Hyun Jang from the School of Energy and Chemical Engineering at UNIST has achieved a significant breakthrough in photoelectrode development. Through collaborative research with Professor Junghoon Lee from Dongseo University and Dr. Hyo-Jin Ahn from the German Engineering Research and Development Center LSTME Busan , the team successfully created a high-performance and stable photoelectrode by incorporating organic semiconductors as an intermediate layer in existing inorganic semiconductor-based photoelectrodes. The production of green hydrogen using solar energy involves splitting water into its constituent elements through charges generated in semiconductors that absorb sunlight. Previous studies primarily focused on utilizing inorganic semiconductors for constructing photoelectrodes. However, organic semiconductors offer several advantages such as lower costs, various process methods, and easier large-scale production. Additionally, their high solar energy conversion efficiency translates to enhanced hydrogen production efficiency. Nevertheless, the susceptibility of organic semiconductors to water damage has limited their application in photoelectrodes. To overcome this challenge, the research team applied a coating of organic semiconductors onto the surface of conventional iron oxide-based photoelectrodes to ensure stability when exposed to water. Furthermore, they implemented a catalyst (nickel/iron double-layer hydroxide) as an additional protective layer over the coated organic semiconductor to prevent direct contact with water. This innovative approach allowed the charges generated from solar energy absorption to facilitate efficient hydrogen production reactions. Professor Jang expressed the team's excitement about the research outcomes, by saying, "By overcoming the limitations of traditional inorganic semiconductor-oriented photoelectrodes, we have demonstrated the potential for more extensive utilization of organic semiconductors in hydrogen production through photoelectrodes." This breakthrough not only opens up new possibilities for enhancing efficiency and stability but also contributes to advancing sustainable energy solutions for a carbon-neutral future.

100 Deals associated with Dongseo University

100 Translational Medicine associated with Dongseo University

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