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Heo, Ji Eun,Shim, Jee-Seon,Song, Bo Mi,Bae, Hye Yoon,Lee, Ho Jae,Lee, Eun,Kim, Hyeon Chang Elsevier 2018 Journal of affective disorders Vol.238 No.-
<P><B>Abstract</B></P> <P><B>Background</B></P> <P>The effects of skeletal muscle mass on depressive symptoms remain poorly understood, especially in the middle-aged population. We examined the relationship between skeletal muscle mass and depressive symptoms according to sex and menopausal status in the middle-aged Korean population.</P> <P><B>Methods</B></P> <P>Herein, 1,151 men and 2,176 women aged 30–64 years completed questionnaires and underwent health examinations in the Cardiovascular and Metabolic Disease Etiology Research Center study. Appendicular skeletal muscle mass (ASM) was measured via bioelectrical impedance analysis and adjusted for height squared (ASM/Ht<SUP>2</SUP>). Both continuous values and tertile groups of ASM/Ht<SUP>2</SUP> were used for analysis. Depressive symptoms were assessed using the Beck Depressive Inventory-II (BDI), and the prevalence of depressive symptoms was determined as a BDI score ≥ 20.</P> <P><B>Results</B></P> <P>Multiple logistic regression analysis using a fully adjusted model showed that depressive symptoms were more frequently observed among men in the lower ASM/Ht<SUP>2</SUP> tertile and middle ASM/Ht<SUP>2</SUP> tertile than among those in the higher ASM/Ht<SUP>2</SUP> tertile. Each 1-kg/m<SUP>2</SUP> decrease in ASM/Ht<SUP>2</SUP> was significantly associated with the presence of depressive symptoms in men. Such significant association was not observed among premenopausal and postmenopausal women.</P> <P><B>Limitations</B></P> <P>The cross-sectional nature of the study design, measurement of skeletal muscle mass and depressive symptoms only once, estimation of skeletal muscle mass using bioelectrical impedance analysis, assessing depressive symptoms by self-reported questionnaire, and potential unknown confounding variables constitute the limitations of our study.</P> <P><B>Conclusions</B></P> <P>The independent association between low skeletal muscle mass and depressive symptoms was observed in men but not in women.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Depressive symptoms were predominant in men in lower and middle ASM/Ht<SUP>2</SUP> tertiles. </LI> <LI> An association between ASM/Ht<SUP>2</SUP> and depressive symptoms was not observed in women. </LI> <LI> Maintenance of appropriate skeletal muscle mass may decrease the risk of depressive symptoms in middle-aged Korean men. </LI> </UL> </P>
국내에서 수집된 국화 품종에 대한 SSR 분자표지 Database 구축
심은조(Eun-Jo Shim),허은정(Eun-Jung Heo),윤무경(Moo-Kyoung Yoon),소은희(Eun-Hee Soh),홍지화(Jee-Hwa Hong) 한국육종학회 2015 한국육종학회지 Vol.47 No.4
Chrysanthemum (Dendranthema grandiflourm Kitamura) is a member of the Asteraceae and one of the important horticultural crops. The objective of this study was to construct a DNA profile database for identification of chrysanthemum varieties using simple sequence repeat (SSR) markers. In order to select SSR markers for the variety identification, we screened 587 SSR primers using 20 varieties. Among them, 27 SSR markers showed polymorphism. We finally selected 14 SSR markers showing peak clearance, high polymorphism and reproducibility in 20 varieties. In conclusion, DNA profile database for 147 chrysanthemum varieties were constructed by 14 SSR markers. A total of 79 SSR alleles were detected and three to ten alleles were detected with an average of 5.6 alleles per locus. The polymorphism information content value ranged 0.287 ~ 0.785 with an average of 0.598. Genetic relationship revealed that genetic distance of 147 varieties ranged from 0.44 to 1.00. The 143 varieties among 147 varieties were distinguished by 14 SSR markers but the 2 varieties developed by mutation breeding and natural variation were not distinguished from original varieties. These constructed SSR profile database will be useful for the selection of similar varieties for candidate variety and for solving problem relating to seed dispute and infringement of plant breeder’s right.
Perinatal Risk Factors for Early Onset Hypocalcemia in Moderate-to-Late Preterm Infants
( Jee Min Jeong ),( Eun Hee Lee ),( Ju Sun Heo ),( Eui Kyung Choi ),( Kyu Hee Park ),( Byung Min Choi ) 대한주산의학회 2019 Perinatology Vol.30 No.4
Objective: Early onset neonatal hypocalcemia (ENH) occurs within 72 hours after birth and screening is recommended for high-risk infants. This study aimed to analyze the risk factors predictive of ENH and evaluate the effectiveness of intervention for ENH in moderate-to-late preterm infants. Methods: This was a retrospective study, examining moderate-to-late preterm infants at 32-36 weeks of gestational age. Perinatal factors were compared between infants with and without hypocalcemia. Related factors were further analyzed to evaluate the validity of the predictive factors for ENH. The effect of intervention was analyzed by comparing changes in serum calcium levels on day 3 and day 7. Results: A total of 112 infants were enrolled. There were 65 infants in the non-hypocalcemic group and 47 in the hypocalcemic group. Between the two groups, only lower magnesium levels on day 1 were related to ENH with an odds ratio of 0.247 using a cutoff value of 1.7 mmol/L for hypocalcemia (sensitivity 42.6%, specificity 80.0%, P=0.005). No infant with hypocalcemia exhibited clinical seizures. Intervention was performed with oral calcium supplements or low-phosphorus milk feeding in 30 infants. The intervention was more effective in resolving hypocalcemia than no intervention (n=17). Conclusion: Lower magnesium levels on day 1 were related to lower calcium levels and a 4-fold higher risk for hypocalcemia. Moderate-to-late preterm infants with hypomagnesemia should be closely monitored for ENH. Additionally, interventions were found to be effective in restoring calcium levels in ENH.
Eun-Jin Park,Im Hee Shin,Hyun-Ki Roh,Seong-Joo Heo,Ji-Man Park,Jee-Ho Lee,Shin-Young Youk 대한치과보철학회 2014 The Journal of Advanced Prosthodontics Vol.6 No.5
PURPOSE This study aims to investigate the degree of subjective pain and the satisfaction of patients who have undergone an implant treatment using a computer-guided template. MATERIALS AND METHODS A survey was conducted for 135 patients who have undergone implant surgery with and without the use of the computer-guided template during the period of 2012 and 2013 in university hospitals, dental hospitals and dental clinics that practiced implant surgery using the computer-guided template. Likert scale and VAS score were used in the survey questions, and the independent t-test and One-Way ANOVA were performed (α=.05). RESULTS The route that the subjects were introduced to the computer-guided implant surgery using a surgical template was mostly advices by dentists, and the most common reason for which they chose to undergo such surgery was that it was accurate and safe. Most of them gave an answer that they were willing to recommend it to others. The patients who have undergone the computer-guided implant surgery felt less pain during the operation and showed higher satisfaction than those who have undergone conventional implant surgery. Among the patients who have undergone computer-guided implant surgery, those who also had prior experience of surgery without a computer-guided template expressed higher satisfaction with the former (P<.05). CONCLUSION In this study, it could be seen that the patients who have undergone computer-guided implant surgery employing a surgical template felt less pain and had higher satisfaction than those with the conventional one, and the dentist's description could provide the confidence about the safety of surgery.
Large-scale assembly of highly flexible low-noise devices based on silicon nanowires
Heo, Kwang,Park, Jee Woo,Yang, Jee-Eun,Koh, Juntae,Kwon, Ji-Hwan,Jhon, Young Min,Kim, Miyoung,Jo, Moon-Ho,Hong, Seunghun IOP Pub 2010 Nanotechnology Vol.21 No.14
<P>Recently, integrated flexible devices based on silicon nanowires (Si-NWs) have received significant attention as high performance flexible devices. However, most previous assembly methods can generate only specifically-shaped devices and require unconventional facilities, which has been a major hurdle for industrial applications. Herein, we report a simple but very efficient method for assembling Si-NWs into virtually generally-shape patterns on flexible substrates using only conventional microfabrication facilities, allowing us to mass-produce highly flexible low-noise devices. As proof of this method, we demonstrated the fabrication of highly bendable top-gate transistors based on Si-NWs. These devices showed typical n-type semiconductor behaviors, and exhibited a much lower noise level compared to previous flexible devices based on organic conductors or other nanowires. In addition, the gating behaviors and low-noise characteristics of our devices were maintained, even under highly bent conditions. </P>
Mechanism for Selective Growth in Electrical Steel
Eun Jee Oh,Nam Hoe Heo,Se Kyun Kwon,Yang Mo Koo 대한금속·재료학회 2018 METALS AND MATERIALS International Vol.24 No.1
Through the competitive selective growth process between {100}, {110}, and {111} grains during final annealingwhich is governed by the primary grain size and the surface segregation concentration of sulfur, the sharp{110}<001> annealing texture can be developed in a C- and Al-free Fe-3%Si-0.1%Mn electrical steel. Generally,the selective growth of the {110} grains occurs actively under the low surface segregation concentration of sulfur. In spite of the surface energy disadvantage, the selective growth of a {hkl} grain can however occur, if the {hkl}grain size is larger than the critical grain size linearly proportional to the strip thickness.