2.Long Term Outcomes of Left Atrial Reservoir Function in Children with a History of Kawasaki Disease.
Soo Jung KANG ; Jihyun HA ; Seo Jung HWANG ; Hyo Jin KIM
Journal of Cardiovascular Ultrasound 2018;26(1):26-32
BACKGROUND: Decreased left atrial (LA) reservoir function is reported to be associated with elevated left ventricular (LV) end diastolic pressure and LV diastolic dysfunction. Echocardiographic parameters that reflect LA reservoir function include LA total emptying fraction [(maximum LA volume - minimum LA volume) / maximum LA volume], peak LA longitudinal strain (PLALS) at systole, and LA stiffness index (E/E´/PLALS). We aimed to investigate the long-term outcomes of LV diastolic function in children with a history of Kawasaki disease (KD) (KDHx group) by assessing LA reservoir function. METHODS: Retrospectively, echocardiograms performed at a mean follow-up period of 5 years after the acute phase of KD in 24 children in the KDHx group were compared to those from 20 normal control subjects. LA total emptying fraction, PLALS, LA stiffness index, LV peak longitudinal systolic strain (ε), and strain rate (SR) were evaluated with conventional echocardiographic parameters. RESULTS: The mean age at long term follow-up echocardiography in children in the KDHx group was 6.8 years. Five children (20.8%) had coronary artery lesions (CALs) in the acute stage of KD. No children showed CALs at a mean follow-up period of 5 years after the acute phase of KD. There were no significant differences in the conventional echocardiographic parameters and in LA total emptying fraction, PLALS, LA stiffness index, LV peak longitudinal systolic ε, and SR, between the children in the KDHx and control group. CONCLUSION: LV diastolic function assessed by LA reservoir function parameters at long-term follow-up in children in the KDHx group appears to be favorable.
Atrial Function
;
Blood Pressure
;
Child*
;
Coronary Vessels
;
Echocardiography
;
Follow-Up Studies
;
Humans
;
Mucocutaneous Lymph Node Syndrome*
;
Prognosis
;
Retrospective Studies
;
Systole
3.Quantification of OATP1B1 endogenous metabolites coproporphyrin I and III in human urine
Yeonseo JANG ; Jihyun KANG ; Sejung HWANG ; Jae-Yong CHUNG ; Joo-Youn CHO
Translational and Clinical Pharmacology 2023;31(3):139-147
Coproporphyrin (CP)-I and CP-III are the markers of organic anion-transporting polypeptides’ (OATPs) activities, and they are porphyrin metabolites that originate from heme synthesis.Furthermore, CP-I and CP-III, which are OATP1B endogenous metabolites, have gradually attracted the attention of scientists and researchers in recent years. Previous studies have also observed CP-I and CP-III levels as clinical biomarkers for predicting OATP1B inhibition in drug–drug interaction studies. To establish an accurate ultra-high performance liquid chromatography–mass spectrometry method for the quantitation of CP-I and CP-III, we reviewed previous methodological publications and applied them to a clinical pharmacology study using a human urine matrix. We used 13.25 M formic acid as a working solution for internal standards (CP-I 15 N 4 and CP-III d8 ) to avoid isobaric interference. The calibration curve showed good linearity in the range of 1–100 ng/mL, with a correlation coefficient (R 2 ) higher than 0.996 in each validation batch. Both the between-run and within-run assays achieved good precision and accuracy, and we found that both CP-I and CP-III were stable in the prestudy validation. The method exhibited suitable dilution integrity, allowing for the re-analysis of samples with concentrations exceeding the upper limit of quantification through dilution.Overall, the application of the described method in a clinical study revealed that it can be utilized effectively to monitor drug–drug interactions mediated by OATP1B.
4.Association of infant feeding practices in the general population with infant growth and stool characteristics.
Youngshin HAN ; Eun Young CHANG ; Jihyun KIM ; Kangmo AHN ; Hye Young KIM ; Eun Mi HWANG ; Dianne LOWRY ; Colin PROSSER ; Sang Il LEE
Nutrition Research and Practice 2011;5(4):308-312
This was a prospective cohort study of 976 infants from birth to 12 months of age. Infants were fed breast milk, goat infant formula, cow infant formula, or a combination of formula and breast milk during the first 4 months of age. Data on type of milk feeding and infant growth (weight and height) were collected at birth and at 4, 8, and 12 months during routine clinical assessment. The number and consistency of bowel motions per day were recorded based on observational data supplied by the mothers. Infants fed breast milk or goat or cow infant formula during the first 4 months displayed similar growth outcomes. More of the infants fed cow infant formula had fewer and more well-formed bowel motions compared with breast-fed infants. The stool characteristics of infants fed goat formula resembled those of infants fed breast milk.
Cohort Studies
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Goats
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Humans
;
Infant
;
Infant Formula
;
Milk
;
Milk, Human
;
Mothers
;
Parturition
;
Prospective Studies
5.Association between intakes of minerals (potassium, magnesium, and calcium) and diet quality and risk of cerebral atherosclerosis in ischemic stroke patients.
Jihyun SON ; Han Saem CHOE ; Ji Yun HWANG ; Tae Jin SONG ; Yoonkyung CHANG ; Yong Jae KIM ; Yuri KIM
Journal of Nutrition and Health 2015;48(2):167-179
PURPOSE: This study was conducted to evaluate the association between intakes of potassium, magnesium, and calcium and diet quality in ischemic stroke patients. METHODS: This study analyzed data from 285 subjects recruited from February 2011 to August 2014 in Seoul, Korea. Nutrition intakes were obtained from a semi-quantitative food frequency questionnaire composed of 111 food items. The subjects were divided into 4 groups by quartiles according to intakes of potassium, magnesium, and calcium. Index of Nutritional Quality (INQ), Mean Adequacy Ratio (MAR), and DQI-International (DQI-I) were analyzed for assessment of diet quality. RESULTS: We found a positive association of intakes of these three minerals with MAR and DQI-I after adjustment for age, sex, education level, smoking, atrial fibrillation, and total energy intake. However, total moderation of DQI-I score in the Q4 group was significantly lower than that of the Q1 group. The age, sex, education level, and smoking, atrial fibrillation, and total energy intake-adjusted odds ratios of extensive cerebral atherosclerosis were inversely associated with intake of magnesium (Ptrend = 0.0204). However, this association did not exist with intakes of potassium and calcium. CONCLUSION: Potassium, magnesium, and calcium rich and high quality diet could be associated with decreased risk of ischemic stroke, in part, via effect on extensive cerebral atherosclerosis.
Atrial Fibrillation
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Calcium
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Diet*
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Education
;
Energy Intake
;
Humans
;
Intracranial Arteriosclerosis*
;
Korea
;
Magnesium*
;
Minerals*
;
Nutritive Value
;
Odds Ratio
;
Potassium
;
Surveys and Questionnaires
;
Seoul
;
Smoke
;
Smoking
;
Stroke*
6.Recurrent Herpes Simplex Virus Type-2 Meningitis in an Adolescent Girl.
Yunsu HWANG ; Youngseo KIM ; Hyunyoung PARK ; Hyungjong PARK ; Jihyun CHO ; Dosim PARK ; Kwangho CHO
Korean Journal of Clinical Neurophysiology 2014;16(2):77-80
Herpes simplex virus type 2 (HSV2) meningitis primarily develops during or following a primary genital HSV2 infection that was acquired from sexual contact or through the birth canal during delivery from mother. We describe a 15 year old virgin without history of previous herpes simplex infection who developed 2 episodes of HSV2 meningitis. Although recurrent meningitis due to HSV is primarily seen in young or sexually active adults. HSV2 meningitis should be in the differential diagnosis of recurrent meningitis in adolescent patients.
Adolescent*
;
Adult
;
Diagnosis, Differential
;
Female
;
Herpes Simplex
;
Herpesvirus 2, Human
;
Humans
;
Meningitis*
;
Mothers
;
Parturition
;
Simplexvirus*
7.Effect of Genetic Predisposition on Blood Lipid Traits Using Cumulative Risk Assessment in the Korean Population.
Min Jin GO ; Joo Yeon HWANG ; Dong Joon KIM ; Hye Ja LEE ; Han Byul JANG ; Kyung Hee PARK ; Jihyun SONG ; Jong Young LEE
Genomics & Informatics 2012;10(2):99-105
Dyslipidemia, mainly characterized by high triglyceride (TG) and low high-density lipoprotein cholesterol (HDL-C) levels, is an important etiological factor in the development of cardiovascular disease (CVD). Considering the relationship between childhood obesity and CVD risk, it would be worthwhile to evaluate whether previously identified lipid-related variants in adult subjects are associated with lipid variations in a childhood obesity study (n = 482). In an association analysis for 16 genome-wide association study (GWAS)-based candidate loci, we confirmed significant associations of a genetic predisposition to lipoprotein concentrations in a childhood obesity study. Having two loci (rs10503669 at LPL and rs16940212 at LIPC) that showed the strongest association with blood levels of TG and HDL-C, we calculated a genetic risk score (GRS), representing the sum of the risk alleles. It has been observed that increasing GRS is significantly associated with decreased HDL-C (effect size, -1.13 +/- 0.07) compared to single nucleotide polymorphism combinations without two risk variants. In addition, a positive correlation was observed between allelic dosage score and risk allele (rs10503669 at LPL) on high TG levels (effect size, 10.89 +/- 0.84). These two loci yielded consistent associations in our previous meta-analysis. Taken together, our findings demonstrate that the genetic architecture of circulating lipid levels (TG and HDL-C) overlap to a large extent in childhood as well as in adulthood. Post-GWAS functional characterization of these variants is further required to elucidate their pathophysiological roles and biological mechanisms.
Adult
;
Alleles
;
Cardiovascular Diseases
;
Cholesterol
;
Dyslipidemias
;
Genetic Predisposition to Disease
;
Genome-Wide Association Study
;
Humans
;
Lipoproteins
;
Obesity
;
Polymorphism, Single Nucleotide
;
Risk Assessment
8.Effect of Genetic Predisposition on Blood Lipid Traits Using Cumulative Risk Assessment in the Korean Population.
Min Jin GO ; Joo Yeon HWANG ; Dong Joon KIM ; Hye Ja LEE ; Han Byul JANG ; Kyung Hee PARK ; Jihyun SONG ; Jong Young LEE
Genomics & Informatics 2012;10(2):99-105
Dyslipidemia, mainly characterized by high triglyceride (TG) and low high-density lipoprotein cholesterol (HDL-C) levels, is an important etiological factor in the development of cardiovascular disease (CVD). Considering the relationship between childhood obesity and CVD risk, it would be worthwhile to evaluate whether previously identified lipid-related variants in adult subjects are associated with lipid variations in a childhood obesity study (n = 482). In an association analysis for 16 genome-wide association study (GWAS)-based candidate loci, we confirmed significant associations of a genetic predisposition to lipoprotein concentrations in a childhood obesity study. Having two loci (rs10503669 at LPL and rs16940212 at LIPC) that showed the strongest association with blood levels of TG and HDL-C, we calculated a genetic risk score (GRS), representing the sum of the risk alleles. It has been observed that increasing GRS is significantly associated with decreased HDL-C (effect size, -1.13 +/- 0.07) compared to single nucleotide polymorphism combinations without two risk variants. In addition, a positive correlation was observed between allelic dosage score and risk allele (rs10503669 at LPL) on high TG levels (effect size, 10.89 +/- 0.84). These two loci yielded consistent associations in our previous meta-analysis. Taken together, our findings demonstrate that the genetic architecture of circulating lipid levels (TG and HDL-C) overlap to a large extent in childhood as well as in adulthood. Post-GWAS functional characterization of these variants is further required to elucidate their pathophysiological roles and biological mechanisms.
Adult
;
Alleles
;
Cardiovascular Diseases
;
Cholesterol
;
Dyslipidemias
;
Genetic Predisposition to Disease
;
Genome-Wide Association Study
;
Humans
;
Lipoproteins
;
Obesity
;
Polymorphism, Single Nucleotide
;
Risk Assessment
9.A case of food-induced acute pancreatitis in a child with egg white allergy
Yeseul LEE ; JiHoon HWANG ; Su Kyung KIM ; Mi Jin KIM ; Tae Yeon JEON ; Jihyun KIM ; Kangmo AHN ; Jiwon KIM
Allergy, Asthma & Respiratory Disease 2022;10(2):123-126
Acute pancreatitis (AP) rarely occurs in association with food allergy (FA), and the mechanism is not clearly explored. We herein report a rare case of egg protein-induced AP. A 5-year-old girl was brought to the hospital because of tongue pruritus and an increased level of egg white-specific immunoglobulin E. During an oral food challenge, she developed hives, abdominal pain and vomiting after ingestion of a cumulative of 610 mg of boiled egg white (70 mg of protein). After management with intramuscular injection of epinephrine and orally administered prednisolone and levocetirizine, her skin symptoms improved. The next day, blood tests showed elevated levels of amylase and lipase, and computed tomography revealed a swollen pancreas with a low-attenuated necrotic portion. She was diagnosed with AP and treated with food restriction, intravenous methylprednisolone and gabexate mesilate. The serum levels of amylase and lipase were reduced to normal levels on day 5 and her symptoms completely resolved on day 10. A suspicion of food-induced AP is required for correct diagnosis and proper management in children with FA when they manifest severe abdominal pain.
10.Awareness, knowledge, and use of folic acid among non-pregnant Korean women of childbearing age
Min Ji KIM ; Jihyun KIM ; Eun Joung HWANG ; YoonJu SONG ; Heon KIM ; Taisun HYUN
Nutrition Research and Practice 2018;12(1):78-84
BACKGROUND/OBJECTIVES: Folic acid supplementation before pregnancy is known to reduce the risk of neural tube defects. The purposes of this study were to investigate the awareness, knowledge, and use of folic acid supplements along with their associated factors among non-pregnant Korean women of childbearing age. SUBJECTS/METHODS: From August 2012 to March 2013, 704 women aged 19–45 years completed a self-administered questionnaire regarding their awareness, knowledge, and use of folic acid as well as questions to identify risk of inadequate folate intake. RESULTS: Approximately 67% of women reported that they had heard of folic acid, and 23.7% had knowledge of both the role of folic acid in preventing birth defects and appropriate time for taking folic acid supplements to prevent birth defects. However, only 9.4% of women took folic acid supplements at the time of the survey. Women aged 19–24 years, unmarried women, and women who had never been pregnant were less likely to be aware and knowledgeable of folic acid or take folic acid supplements. In addition, women at high risk of inadequate folate intake were less likely to take folic acid supplements. In a multivariate analysis, women aged 19–24 years, women with a high school diploma or lower education level, and unmarried women were less likely to be aware and have knowledge of folic acid. The percentage of women taking folic acid supplements was significantly higher among knowledgeable women than among unknowledgeable women. CONCLUSIONS: These results support our hypothesis that women with knowledge of folic acid are more likely to take folic acid supplements. Therefore, educational programs or campaigns to improve knowledge regarding the importance of folic acid and to promote consumption of folic acid supplements as well as folate-rich foods are needed to target young, less educated, and unmarried women.
Congenital Abnormalities
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Dietary Supplements
;
Education
;
Female
;
Folic Acid
;
Humans
;
Multivariate Analysis
;
Neural Tube Defects
;
Pregnancy
;
Single Person