1.Contrasting clinical characteristics and treatment patterns in women with newly diagnosed advanced-stage epithelial ovarian cancer in Australia, South Korea and Taiwan
Hung-Hsueh CHOU ; Sian FEREDAY ; Anna DEFAZIO ; Chih-Long CHANG ; David BOWTELL ; Heng-Cheng HSU ; Nadia TRAFICANTE ; Soo Young JEONG ; Wen-Fang CHENG ; Dinuka ARIYARANTNE ; ; Teresa TUNG ; Viraj RAJADHYAKSHA ; Won-Hee LEE ; David BROWN ; Byoung-Gie KIM
Journal of Gynecologic Oncology 2023;34(1):e3-
		                        		
		                        			 Objective:
		                        			The real-world INFORM study analyzed sociodemographics, treatment patterns and clinical outcomes for patients with newly diagnosed advanced epithelial ovarian cancer (EOC) in Australia, South Korea (S.Korea) and Taiwan preceding incorporation of poly(ADP-ribose) polymerase inhibitors into clinical practice. 
		                        		
		                        			Methods:
		                        			Retrospective data from patients diagnosed with EOC (high-grade serous EOC for Taiwan) between January 2014 and December 2018 with ≥12 months follow-up from diagnosis were analyzed descriptively. Survival was evaluated by Kaplan-Meier with two-sided 95% confidence interval (CI). 
		                        		
		                        			Results:
		                        			Of the 987 patients (Australia, 223; S.Korea, 513; Taiwan, 251), 98% received platinum-based chemotherapy (CT). In S.Korea and Taiwan 76.0% and 78.9% respectively underwent primary cytoreductive surgery; in Australia, 56.5% had interval debulking surgery. Bevacizumab was included in primary/maintenance therapy for 22.4%, 14.6% and 6.8% of patients in Australia, S.Korea and Taiwan, respectively. Patients receiving bevacizumab were high-risk (reimbursement policy) and achieved similar real-world progression-free survival (PFS) compared with CT only. Overall, the median real-world PFS (months; 95% CI) was similar across Australia (16.0 [14.63–18.08]), S.Korea (17.7 [16.18–19.27]) and Taiwan (19.1 [17.56–22.29]). 
		                        		
		                        			Conclusion
		                        			This study reveals poor prognosis despite differences in demographics and treatment patterns for patients with EOC across Asia-Pacific suggesting the need for biomarker-driven novel therapies to improve outcomes. 
		                        		
		                        		
		                        		
		                        	
2.A Study on the Relationship between Facial Skin Youthfulness and Lifestyle in Korean Women over 50 Years Old
Seung-Mee KIM ; Young Yoon LEE ; Cho-Long HWANG ; Jung-Min SHIN ; In-Sun KWON ; Sang-Hyun PARK ; Kyung Eun JUNG ; Chang-Deok KIM ; Young-Joon SEO ; Dongkyun HONG ; Young LEE
Korean Journal of Dermatology 2022;60(4):201-208
		                        		
		                        			 Background:
		                        			Skin aging can be divided into intrinsic and extrinsic processes, and occur due to several factors. Although the interest in skin youthfulness is increasing globally, research on facial skin youthfulness and lifestyle is limited. 
		                        		
		                        			Objective:
		                        			This study aimed to evaluate the association between facial skin youthfulness and biophysical facial skin parameters in Korean women over 50 years of age. We further investigated lifestyle factors that make people appear younger than their chronological age. 
		                        		
		                        			Methods:
		                        			We surveyed the essential information and lifestyle of subjects by questionnaires, and measured the biophysical parameters of the facial skin. We then performed clinical facial assessments, and the values were compared with the chronologic age. The associations between age differences, biophysical parameters, and living habits were evaluated. 
		                        		
		                        			Results:
		                        			We identified a positive correlation between age and melanin index (r=0.245, p<0.001) and erythema index (r=0.119, p=0.002). The melanin index was statistically significantly lower in the group without regular outdoor activities (144.66±43.24 vs. 137.00±55.48, p=0.043). The melanin index and erythema index were the significant differences that defined younger perceived age than chronological age. The perceived age was younger in the group who wore a hat when performing outdoor activities than the group who did not (3.70±1.84 vs. 3.40±1.94, p=0.034). 
		                        		
		                        			Conclusion
		                        			To retain youthful skin, it is essential to reduce sun exposure, as this factor can affect the melanin and erythema indices by inducing photoaging. Therefore, avoiding the sun bia proper methods, such as wearing a hat and sunscreen during outdoor activities, is recommended to maintain skin youthfulness. 
		                        		
		                        		
		                        		
		                        	
3.Caenorhabditis elegans deep lipidome profiling by using integrative mass spectrometry acquisitions reveals significantly altered lipid networks
Anh Hoang NGUYEN ; Yoon Cheol YOUNG ; Min Jin YOUNG ; Long Phuoc NGUYEN ; Jung Woon CHEOL ; Kim Jo SUN ; Kim Won SUK ; Lee Goo EUN ; Wang DAIJIE ; Wang XIAO ; Kwon Won SUNG
Journal of Pharmaceutical Analysis 2022;12(5):743-754
		                        		
		                        			
		                        			Lipidomics coverage improvement is essential for functional lipid and pathway construction.A powerful approach to discovering organism lipidome is to combine various data acquisitions,such as full scan mass spectrometry(full MS),data-dependent acquisition(DDA),and data-independent acquisition(DIA).Caenorhabditis elegans(C.elegans)is a useful model for discovering toxic-induced metabolism,high-throughput drug screening,and a variety of human disease pathways.To determine the lipidome of C.elegans and investigate lipid disruption from the molecular level to the system biology level,we used integrative data acquisition.The methyl-tert-butyl ether method was used to extract L4 stage C.elegans after exposure to triclosan(TCS),perfluorooctanoic acid,and nanopolystyrene(nPS).Full MS,DDA,and DIA integrations were performed to comprehensively profile the C.elegans lipidome by Q-Exactive Plus MS.All annotated lipids were then analyzed using lipid ontology and pathway analysis.We annotated up to 940 lipids from 20 lipid classes involved in various functions and pathways.The biological in-vestigations revealed that when C.elegans were exposed to nPS,lipid droplets were disrupted,whereas plasma membrane-functionalized lipids were likely to be changed in the TCS treatment group.The nPS treatment caused a significant disruption in lipid storage.Triacylglycerol,glycerophospholipid,and ether class lipids were those primarily hindered by toxicants.Finally,toxicant exposure frequently involved numerous lipid-related pathways,including the phosphoinositide 3-kinase/protein kinase B pathway.In conclusion,an integrative data acquisition strategy was used to characterize the C elegans lipidome,providing valuable biological insights into hypothesis generation and validation.
		                        		
		                        		
		                        		
		                        	
4.Radiation safety: a focus on lead aprons and thyroid shields in interventional pain management
Bo Kyung CHEON ; Cho Long KIM ; Ka Ram KIM ; Min Hye KANG ; Jeong Ae LIM ; Nam Sik WOO ; Ka Young RHEE ; Hae Kyoung KIM ; Jae Hun KIM
The Korean Journal of Pain 2018;31(4):244-252
		                        		
		                        			
		                        			C-arm fluoroscopy is useful equipment in interventional pain management because it helps to guide correct needle targeting for the accurate injection and drug delivery. However, due to increased use of C-arm fluoroscopy in various pain procedures, the risk of radiation exposure is a significant concern for pain physicians. The harmful biological effects of ionizing radiation on the human body are well known. It is therefore necessary to strive to reduce radiation exposure. Lead aprons with thyroid shields are the most fundamental radiation protective devices for interventional procedures, and are very effective. However, the operator's radiation safety cannot be guaranteed because pain physicians seem to lack sufficient interest, knowledge, and awareness about radiation safety. Also, inappropriate care and use of radiation protective devices may result in a higher risk of radiation exposure. The purpose of this article was to review the literature on radiation safety with a focus on lead aprons and thyroid shields and present recommendations related to those devices during C-arm fluoroscopic-guided interventions by pain physicians.
		                        		
		                        		
		                        		
		                        			Fluoroscopy
		                        			;
		                        		
		                        			Human Body
		                        			;
		                        		
		                        			Needles
		                        			;
		                        		
		                        			Pain Management
		                        			;
		                        		
		                        			Protective Devices
		                        			;
		                        		
		                        			Radiation Exposure
		                        			;
		                        		
		                        			Radiation Protection
		                        			;
		                        		
		                        			Radiation, Ionizing
		                        			;
		                        		
		                        			Thyroid Gland
		                        			
		                        		
		                        	
5.Nondestructive Assessment of Glycosaminoglycans in Engineered Cartilages Using Hexabrix-Enhanced Micro-Computed Tomography.
Long Hao JIN ; Byung Hyune CHOI ; Young Jick KIM ; Hyun Ju OH ; Byoung Ju KIM ; Xiang Yun YIN ; Byoung Hyun MIN
Tissue Engineering and Regenerative Medicine 2018;15(3):311-319
		                        		
		                        			
		                        			It is very useful to evaluate the content and 3D distribution of extracellular matrix non-destructively in tissue engineering. This study evaluated the feasibility of using micro-computed tomography (µCT) with Hexabrix to measure quantitatively sulfated glycosaminoglycans (GAGs) of engineered cartilage. Rabbit chondrocytes at passage 2 were used to produce artificial cartilages in polyglycolic acid scaffolds in vitro. Engineered cartilages were incubated with Hexabrix 320 for 20 min and analyzed via µCT scanning. The number of voxels in the 2D and 3D scanning images were counted to estimate the amount of sulfated GAGs. The optimal threshold value for quantification was determined by regression analysis. The 2D µCT images of an engineered cartilage showed positive correlation with the histological image of Safranin-O staining. Quantitative data obtained with the 3D µCT images of 14 engineered cartilages showed strong correlation with sulfated GAGs contents obtained by biochemical analysis (R² = 0.883, p < 0.001). Repeated exposure of engineered cartilages to Hexabrix 320 and µCT scanning did not significantly affect cell viability, total DNA content, or the total content of sulfated GAGs. We conclude that µCT imaging using Hexabrix 320 provides high spatial resolution and sensitivity to assess the content and 3D distribution of sulfated GAGs in engineered cartilages. It is expected to be a valuable tool to evaluate the quality of engineered cartilage for commercial development in the future.
		                        		
		                        		
		                        		
		                        			Cartilage*
		                        			;
		                        		
		                        			Cell Survival
		                        			;
		                        		
		                        			Chondrocytes
		                        			;
		                        		
		                        			DNA
		                        			;
		                        		
		                        			Extracellular Matrix
		                        			;
		                        		
		                        			Glycosaminoglycans*
		                        			;
		                        		
		                        			In Vitro Techniques
		                        			;
		                        		
		                        			Ioxaglic Acid
		                        			;
		                        		
		                        			Polyglycolic Acid
		                        			;
		                        		
		                        			Tissue Engineering
		                        			
		                        		
		                        	
6.A Reliability and Validity Study of the Korean versions of the Eating Disorder Examination Questionnaire version 6.0 (EDE-Q version 6.0) and the Clinical Impairment Assessment Questionnaire (CIA)
Eun Byul BANG ; Cho Long HAN ; Yu Ri KIM ; Mirihae KIM ; Young Ho LEE ; Si Young HEO ; Youl Ri KIM
Korean Journal of Psychosomatic Medicine 2018;26(2):152-163
		                        		
		                        			
		                        			OBJECTIVES: The Eating Disorder Examination Questionnaire, version 6.0 (EDE-Q version 6.0) and the Clinical Impairment Assessment Questionnaire (CIA) measure attitudes and behavioral features of eating disorders and impairments secondary to eating disorders, respectively. The aims of this study were to examine the reliability and the validity of the Korean versions of the EDE-Q version 6.0 and the CIA. METHODS: Four hundred nineteen participants (370 female university students and 49 women with eating disorders) completed the EDE-Q version 6.0, the CIA, the Body Shape Questionnaire (BSQ) and the Weight Concern Scale (WCS). RESULTS: Excellent internal consistencies were obtained for the EDE-Q version 6.0 (Cronbach's α=0.92) and the CIA (Cronbach's α=0.91). Exploratory factor analysis of CIA extracted the 3 factors of personal, social, and cognitive impairments, as the original CIA had. The EDE-Q version 6.0 and the CIA were well correlated with the BSQ and the WCS, in respect to their contextually concordant variables. Patients with eating disorders had higher scores both in the EDE-Q 6.0 and the CIA than university women had, supporting good discriminant validity. CONCLUSIONS: The EDE-Q version 6.0 and the Korean versions of the CIA had adequate reliability and validity. These data will help clinicians and researchers to use the EDE-Q and the CIA in diagnosis, prevention and intervention of eating disorders in Korea.
		                        		
		                        		
		                        		
		                        			Cognition Disorders
		                        			;
		                        		
		                        			Diagnosis
		                        			;
		                        		
		                        			Eating
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Korea
		                        			;
		                        		
		                        			Reproducibility of Results
		                        			
		                        		
		                        	
7.Sleep problems in children and adolescents at pediatric clinics.
Dong Soon KIM ; Cho Long LEE ; Young Min AHN
Korean Journal of Pediatrics 2017;60(5):158-165
		                        		
		                        			
		                        			PURPOSE: To investigate the frequency of childhood sleep problems at pediatric clinics in Seoul and Gyeonggi provinces. METHODS: Children (n=936) and their parents who visited 5 primary and 1 secondary pediatric outpatient clinics were invited to complete a Pediatric Sleep Questionnaire. RESULTS: Among patients, 901 (96.3%) answered questionnaires in sufficient detail for evaluation. The participant's mean age was 4.35±3.02 years (range, 0–18 years). The male to female ratio was 1:0.93 (466 boys, 435 girls). Habitual snoring (>3 day/week) was reported in 16.9% of the participants. The prevalence of habitual snoring in children <2 years and those between 2–5 years was 9% and 18%, respectively. Sleep disordered breathing was found in 15.1% (106 of 700) of children >2 years. Insomnia was reported in 13.2% of children. The prevalence of sleepwalking, night terrors, and bruxism, is 1.6%, 19%, and 21.1%, respectively. Snoring was associated with increased incidence of sleepwalking, night terrors, and bruxism. Age was associated with insomnia and habitual snoring (P<0.05). Insomnia was more prevalent in younger (21%) than in older children (6%). Snoring was more frequent in both preschool (34%) and school-aged children (33%). The frequency of sleep disordered breathing and insomnia did not vary significantly with gender. However, snoring was more prevalent in boys. CONCLUSION: Sleep problems are frequent among children in Korea. Children with snoring have an increased risk of sleepwalking, night terror, and bruxism. Primary clinicians should consider children's sleep habits to improve their health.
		                        		
		                        		
		                        		
		                        			Adolescent*
		                        			;
		                        		
		                        			Ambulatory Care Facilities
		                        			;
		                        		
		                        			Bruxism
		                        			;
		                        		
		                        			Child*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Gyeonggi-do
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Incidence
		                        			;
		                        		
		                        			Korea
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Night Terrors
		                        			;
		                        		
		                        			Parents
		                        			;
		                        		
		                        			Prevalence
		                        			;
		                        		
		                        			Seoul
		                        			;
		                        		
		                        			Sleep Apnea Syndromes
		                        			;
		                        		
		                        			Sleep Initiation and Maintenance Disorders
		                        			;
		                        		
		                        			Snoring
		                        			;
		                        		
		                        			Somnambulism
		                        			
		                        		
		                        	
8.Terminal Versus Advanced Cancer: Do the General Population and Health Care Professionals Share a Common Language?.
Sang Hyuck KIM ; Dong Wook SHIN ; So Young KIM ; Hyung Kook YANG ; Eunjoo NAM ; Hyun Jung JHO ; Eunmi AHN ; Be Long CHO ; Keeho PARK ; Jong Hyock PARK
Cancer Research and Treatment 2016;48(2):759-767
		                        		
		                        			
		                        			PURPOSE: Many end-of-life care studies are based on the assumption that there is a shared definition of language concerning the stage of cancer. However, studies suggest that patients and their families often misperceive patients' cancer stages and prognoses. Discrimination between advanced cancer and terminal cancer is important because the treatment goals are different. In this study, we evaluated the understanding of the definition of advanced versus terminal cancer of the general population and determined associated socio-demographic factors. MATERIALS AND METHODS: A total of 2,000 persons from the general population were systematically recruited. We used a clinical vignette of a hypothetical advanced breast cancer patient, but whose cancer was not considered terminal. After presenting the brief history of the case, we asked respondents to choose the correct cancer stage from a choice of early, advanced, terminal stage, and don't know. Multinomial logistic regression analysis was performed to determine sociodemographic factors associated with the correct response, as defined in terms of medical context. RESULTS: Only 411 respondents (20.6%) chose "advanced," while most respondents (74.5%) chose "terminal stage" as the stage of the hypothetical patient, and a small proportion of respondents chose "early stage" (0.7%) or "don't know" (4.4%). Multinomial logistic regression analysis found no consistent or strong predictor. CONCLUSION: A large proportion of the general population could not differentiate advanced cancer from terminal cancer. Continuous effort is required in order to establish common and shared definitions of the different cancer stages and to increase understanding of cancer staging for the general population.
		                        		
		                        		
		                        		
		                        			Breast Neoplasms
		                        			;
		                        		
		                        			Data Collection
		                        			;
		                        		
		                        			Delivery of Health Care*
		                        			;
		                        		
		                        			Discrimination (Psychology)
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Logistic Models
		                        			;
		                        		
		                        			Neoplasm Staging
		                        			;
		                        		
		                        			Prognosis
		                        			
		                        		
		                        	
9.Correlation Between the CYP2C19 Phenotype Status and the Results of Three Different Platelet Function Tests in Cardiovascular Disease Patients Receiving Antiplatelet Therapy: An Emphasis on Newly Introduced Platelet Function Analyzer-200 P2Y Test.
Shuhua LI ; Jae Lim CHOI ; Long Zhe GUO ; Ri Young GOH ; Bo Ram KIM ; Kwang Sook WOO ; Moo Hyun KIM ; Jin Yeong HAN
Annals of Laboratory Medicine 2016;36(1):42-48
		                        		
		                        			
		                        			BACKGROUND: An association has been reported between CYP2C19 polymorphism and the altered antiplatelet activity of clopidogrel. We investigated this association using the newly introduced platelet function analyzer (PFA)-200 (INNOVANCE PFA-200 System; Siemens Healthcare, Germany) P2Y test. METHODS: Polymorphisms of CYP2C19*2, *3, *17 and the degree of inhibition of platelet function were determined in 83 patients. Three different platelet function tests were used to evaluate the degree of platelet inhibition and to check the association with genotype. RESULTS: The post-procedure PFA-200 values of extensive metabolizers (EM) patients (285.3+/-38.8) were higher than those of intermediate metabolizers (IM) and poor metabolizers (PM) patients (227.7+/-98.3 and 133.7+/-99.2, respectively; P=0.024). Light transmittance aggregometry (LTA) and the VerifyNow system showed that the post-procedure values for EM patients were lower than those of IM and PM patients (LTA: 24.4+/-15.7, 34.1+/-17.6, and 42.2+/-16.9, respectively, P<0.001; VerifyNow: 133.2+/-60.5, 171.5+/-42.6, and 218.7+/-59.3, respectively, P<0.001). The high residual platelet reactivity (HPR) rates were significantly different among the EM, IM, and PM groups using PFA-200 (PM:IM:EM=82.4:40.6:11.8, P<0.001). CONCLUSIONS: Approximately, 59.0% of Korean patients with cardiovascular disease receiving clopidogrel had CYP2C19 loss-of-function genotypes classified as IM or PM, and the frequency was similar to the data from Asian people. The PFA-200, LTA, and VerifyNow platelet function tests revealed evidence of a significant association between the efficacy of clopidogrel and CYP2C19 genotypes.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Cardiovascular Diseases/blood/*drug therapy
		                        			;
		                        		
		                        			Cytochrome P-450 CYP2C19/*genetics/metabolism
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Genotype
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Phenotype
		                        			;
		                        		
		                        			Platelet Aggregation Inhibitors/*therapeutic use
		                        			;
		                        		
		                        			Platelet Function Tests/instrumentation
		                        			;
		                        		
		                        			Polymorphism, Genetic
		                        			;
		                        		
		                        			Ticlopidine/*analogs & derivatives/therapeutic use
		                        			
		                        		
		                        	
10.Genome-Wide Association Study of Bone Mineral Density in Korean Men.
Ye Seul BAE ; Sun Wha IM ; Mi So KANG ; Jin Hee KIM ; Soon Hang LEE ; Be Long CHO ; Jin Ho PARK ; You Seon NAM ; Ho Young SON ; San Deok YANG ; Joohon SUNG ; Kwang Ho OH ; Jae Moon YUN ; Jong Il KIM
Genomics & Informatics 2016;14(2):62-68
		                        		
		                        			
		                        			Osteoporosis is a medical condition of global concern, with increasing incidence in both sexes. Bone mineral density (BMD), a highly heritable trait, has been proven a useful diagnostic factor in predicting fracture. Because medical information is lacking about male osteoporotic genetics, we conducted a genome-wide association study of BMD in Korean men. With 1,176 participants, we analyzed 4,414,664 single nucleotide polymorphisms (SNPs) after genomic imputation, and identified five SNPs and three loci correlated with bone density and strength. Multivariate linear regression models were applied to adjust for age and body mass index interference. Rs17124500 (p = 6.42 × 10⁻⁷), rs34594869 (p = 6.53 × 10⁻⁷) and rs17124504 (p = 6.53 × 10⁻⁷) in 14q31.3 and rs140155614 (p = 8.64 × 10⁻⁷) in 15q25.1 were significantly associated with lumbar spine BMD (LS-BMD), while rs111822233 (p = 6.35 × 10⁻⁷) was linked with the femur total BMD (FT-BMD). Additionally, we analyzed the relationship between BMD and five genes previously identified in Korean men. Rs61382873 (p = 0.0009) in LRP5, rs9567003 (p = 0.0033) in TNFSF11 and rs9935828 (p = 0.0248) in FOXL1 were observed for LS-BMD. Furthermore, rs33997547 (p = 0.0057) in ZBTB and rs1664496 (p = 0.0012) in MEF2C were found to influence FT-BMD and rs61769193 (p = 0.0114) in ZBTB to influence femur neck BMD. We identified five SNPs and three genomic regions, associated with BMD. The significance of our results lies in the discovery of new loci, while also affirming a previously significant locus, as potential osteoporotic factors in the Korean male population.
		                        		
		                        		
		                        		
		                        			Asian Continental Ancestry Group
		                        			;
		                        		
		                        			Body Mass Index
		                        			;
		                        		
		                        			Bone Density*
		                        			;
		                        		
		                        			Femur
		                        			;
		                        		
		                        			Femur Neck
		                        			;
		                        		
		                        			Genetics
		                        			;
		                        		
		                        			Genome-Wide Association Study*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Incidence
		                        			;
		                        		
		                        			Linear Models
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Osteoporosis
		                        			;
		                        		
		                        			Polymorphism, Single Nucleotide
		                        			;
		                        		
		                        			Spine
		                        			
		                        		
		                        	
            
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