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Early adulthood: an overlooked age group in national sodium reduction initiatives in South Korea
Sohyun Park,Jounghee Lee,Kwang-Il Kwon,Jong-Wook Kim,Jae-Eon Byun,Baeg-Won Kang,Bo Youl Choi,Hye-Kyung Park 한국영양학회 2014 Nutrition Research and Practice Vol.8 No.6
BACKGROUND/OBJECTIVES: South Korean’s sodium consumption level is more than twice the upper limit level suggested by the WHO. Steep increases in the prevalence of hypertension and cardiovascular disease in Korea necessitate more effective sodium reduction programs. This study was conducted in order to compare sodium intake-related eating behaviors and key psychosocial factors according to age group and gender. SUBJECTS/METHODS: Using an online survey, a total of 1,564 adults (20-59 years old) considered to be geographically representative of South Korea were recruited and surveyed. The major outcomes were perceived behaviors, knowledge, intentions, and self-efficacy related to sodium intake. RESULTS: The results show that perceived behavior and level of self-efficacy related to low sodium consumption differed by age and gender. Female participants showed better behavior and intention towards low sodium intake than male counterparts. Young participants in their 20s showed the lowest intention to change their current sodium intake as well as lowest self-efficacy measures. CONCLUSIONS: Future sodium reduction interventions should be developed with tailored messages targeting different age and gender groups. Specifically, interventions can be planned and implemented at the college level or for workers in their early career to increase their intention and self-efficacy as a means of preventing future health complications associated with high sodium intake.
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( Sohyun Park ),( Yeonjung Han ),( Dong Won Son ) 한국목재공학회 2021 목재공학 Vol.49 No.1
The carbonized length and area of plywood by the various spreading concentration of water glass and the type of additives were measured in accordance with the 45° MecKel’s burner method of the fire protection performance standard of the Korean National Fire Agency. As a result of treating water glass with a concentration of 20 to 50 % on plywood, the flame retardancy tended to increase in proportion to the concentration of water glass. However, the optimum concentration of water glass was determined to be 30 % due to the efflorescence and sticky on the surface of plywood treated with high-concentration water glass of more than 30 %. As a result of the experiment by adding different proportions of additives to the water glass with concentration of 30 %, the standard of flame performance standard was satisfied under the conditions with the addition of 15% potassium hydroxide and 1-10% aluminum hydroxide, respectively. On the other hand, there were no significant difference in the flame retardancy by adding magnesium sulfate. These results about the flame retardancy of plywood by water glass and additives were expected to be basic data for improving flame-retardant treated wood.
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Ovarian reserve as a predicting factor for successful pregnancy after adenomyomectomy
( Sohyun Kim ),( Seyeon Won ),( Ji Young Hwang ),( Nara Lee ),( Miseon Kim ),( Mikyoung Kim ),( Mi-la Kim ),( Bo Sung Yun ),( Seok Ju Seong ),( Yong Wook Jung ) 대한산부인과학회 2020 대한산부인과학회 학술대회 Vol.106 No.-
Objective: To compile the fertility outcomes of adenomyomectomy and to evaluate which demographic factors predict a successful pregnancy in patients who have undergone adenomyomectomy. Methods: We retrospectively reviewed the patient data between January 2017 and April 2020. Possible causes for infertility were excluded by hysterosalpingography, blood tests, karyotyping, hormonal assay, and semen analysis before the surgery. Candidates were selected for surgery based on the following criteria: 1) patients aged ≤45 years, 2) patients who consented to proceed with the surgery after being informed about the possibility of recurrence of the disease and operative blood loss, and 3) patients desiring pregnancy in the future. Patients were followed up monthly for 3 months. The subsequent follow-ups were conducted every 3-6 months. Patients who wanted to get pregnant could try for pregnancy 3 months after the surgery. We defined pregnancy success as the presence of fetal heartbeat at 6-7 weeks of gestation. The number of pregnancy trials was defined as the number of embryos transferred. Results: Forty-three patients were divided into two groups: the pregnancy failure group (n=28) and the pregnancy success group (n=15). The age of patients was higher (39.0 [32.046.0] vs. 37.0 [33.042.0] years, P=0.006) and the level of anti-Mllerian hormone (AMH) (0.54 [0.018.54] vs. 2.91 [0.347.92] ng/mL, P=0.002) was lower in the pregnancy failure group than in the pregnancy success group. The operative time was longer (220.0 [68.0440.0] vs. 175.0 [65.0305.0] minutes, P=0.048) and the estimated blood loss was higher (750 [1002500] vs. 500 [502000] ml, P=0.016) in the pregnancy failure group than in the pregnancy success group. No significant difference was observed in body mass index, symptoms, cancer antigen 125, preoperative uterine volume, and type of adenomyosis. In the multivariate analysis, age and AMH were significant predictive factors for successful pregnancy. Conclusion: Ovarian reserve (age and AMH) and disease severity might be predictive factors for successful pregnancy in patients who have undergone adenomyomectomy. Adenomyomectomy should be positively considered for women desiring pregnancy and having appropriate ovarian reserve. This information will be beneficial for patients and clinicians before the decision about adenomyomectomy. Larger prospective studies are needed to confirm our findings.
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( Sohyun Park ),( Yeonjung Han ),( Dong Won Son ) 한국목재공학회 2020 목재공학 Vol.48 No.4
The flame retardancy, such as carbonized length and area, of four plank type wood products by the spreading concentration and impregnation time of flame retardant were measured according to standard of the Nation Fire Agency in Republic of Korea. To measure the flame retardancy, Korean pine plywood, Japanese larch plywood, Japanese cypress planks, and perforated birch plywood boards were treated with self-development flame retardant by 300 and 500 g/m2 spreading concentration and those were compared with control specimen. In general, the flame retardant performance of wood products improved as the spreading concentration of flame retardant increased. Except for Japanese larch plywood, there was no significant difference in the flame retardant performance by the spreading concentration. The flame retardant performance of perforated birch plywood board was positively correlated up to 60 minutes of impregnation time, but then gradually decreased. These results about the flame retardancy of wood products by spreading concentration and impregnation time were expected to be basic data for improving flame-retardant treated wood.
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Park, Sohyun,Kim, Tae-Sung,Kang, Se Hun,Kim, Hyun Beom,Park, Joong-Won,Kim, Seok-ki Williams & Wilkins Co 2018 Medicine Vol.97 No.37
ABSTRACT: The aim of the present study was to evaluate the clinical significance of dual radiotracer studies, C-acetate and F-fluoro-D-glucose positron emission tomography/computed tomography (F-FDG PET/CT), for the prediction of response and recurrence after transarterial chemoembolization (TACE).This study retrospectively included a total 42 hepatoceullar carcinoma (HCC) patients (median age, 59; range, 34–85 years old) who underwent C-acetate and F-FDG PET/CT concurrently. Tumor uptake normalized by liver uptake (TNR; maximum tumor SUV to mean normal liver SUV ratio) was obtained first. Then, FAratio, which is the ratio of F-FDG TNR (TNR_FDG) to C-acetate TNR, was obtained and correlated with response after TACE and recurrence-free survival (RFS), using a Cox multivariate proportional-hazard model.Among clinical factors, including the Hepatoma Arterial Embolization Prognostic score and positron emission tomography (PET) parameters, multiple regression analysis revealed FAratio and tumor size to be the only significant factors. As a PET parameter, FAratio exhibited the largest area under the curve in the prediction of response after TACE. In the Cox multivariate proportional-hazard model, TNR_FDG was the only significant predictive factor for RFS. In subgroup analysis, TNR_FDG was the only significant predictive factor for recurrence in intermediate stage patients. However, FAratio was the only significant predictive factor for recurrence in advanced stage patients.Dual radiotracer use of C-acetate and F-FDG PET/CT contributed to the prediction of response and recurrence after TACE. Used in addition to F-FDG, C-acetate PET/CT could give additional information in advanced stage patients. Based on the characteristics of tumor metabolism assessed by dual radiotracer PET/CT, treatment plans could be more personalized and optimized.
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