1.Targeting Mitochondrial Dysfunction for the Prevention and Treatment of Metabolic Disease by Bioactive Food Components
Mi-Bo KIM ; Jaeeun LEE ; Ji-Young LEE
Journal of Lipid and Atherosclerosis 2024;13(3):306-327
Dysfunctional mitochondria have been linked to the pathogenesis of obesity-associated metabolic diseases. Excessive energy intake impairs mitochondrial biogenesis and function, decreasing adenosine-5’-triphosphate production and negatively impacting metabolically active tissues such as adipose tissue, skeletal muscle, and the liver. Compromised mitochondrial function disturbs lipid metabolism and increases reactive oxygen species production in these tissues, contributing to the development of insulin resistance, type 2 diabetes, and non-alcoholic fatty liver disease. Recent studies have demonstrated the therapeutic potential of bioactive food components, such as resveratrol, quercetin, coenzyme Q10, curcumin, and astaxanthin, by enhancing mitochondrial function. This review provides an overview of the current understanding of how these bioactive compounds ameliorate mitochondrial dysfunction to mitigate obesity-associated metabolic diseases.
2.Bird-Egg syndrome diagnosed by ImmunoCap ISAC
Jaeeun CHUNG ; David LEE ; Yoonha HWANG
Allergy, Asthma & Respiratory Disease 2023;11(3):161-163
Adult-onset egg allergy is rare compared to child-onset egg allergy, and the component-resolved diagnosis test is effective in evaluating food allergy. We herein report a 24-year-old woman with late-onset egg-yolk allergy diagnosed as bird-egg syndrome. The prolonged exposure to pet parrots' dander or dropping through the respiratory system caused sensitization to the Gal d 5 component and resulted in a cross-reaction to egg yolk. Since the patient was suspected of the syndrome by her history, the skin prick test, ISAC ImmunoCAP, and serum ImmunoCAP test were performed. By confirming Gal d 5 component by ISAC ImmunoCAP, the patient was diagnosed with the syndrome. In patients with newly adult-onset food allergy, the clinician must identify the environmental conditions which can cause cross-sensitization and perform the causative component test.
3.Myocardial Assessment in School-Aged Children with Past Kawasaki Disease.
Heeyoung LEE ; Jaeeun SHIN ; Lucy EUN
Journal of Korean Medical Science 2017;32(11):1835-1839
Coronary artery involvement remains the most important complication with Kawasaki disease (KD). Additional myocardial injury can be caused by inflammatory response and ischemic event. However, the long-term outcome of myocardial function has not been fully known in KD. The purpose of this study is to evaluate myocardial function in school-aged children who had the past history of KD. Sixty-seven children in the second grade of elementary schools, who had the past history of KD, were included. Echocardiographic measurements of each coronary artery and myocardial function were obtained as the long-term follow-up data, and compared with the baseline data at the time of initial presentation of KD. The mean age of the subjects was 8.6 ± 2.4 years, and 4.3 ± 3.4 years have passed since the diagnosis of KD. Among the echocardiographic data, interventricular septum thickness at end-diastole (IVSd), LV internal diameters at end-systole (LVIDs), maximal velocity of late diastolic filling across mitral valve (mitral A) flow, maximal velocity of early diastolic filling across mitral valve (mitral E)/A ratio, mitral inflow E wave to peak early diastolic tissue velocity (E/E') ratio showed significant differences between the baseline and follow-up measurements. Coronary Z-score of left main artery (LMA), left anterior descending (LAD), and right coronary artery (RCA) showed no significant difference. The school-aged children with the past history of KD may have diastolic dysfunction. Therefore, appropriate assessment of myocardial function would be recommended during the follow-up period in children with KD.
Arteries
;
Child*
;
Coronary Vessels
;
Diagnosis
;
Echocardiography
;
Follow-Up Studies
;
Humans
;
Mitral Valve
;
Mucocutaneous Lymph Node Syndrome*
4.JYNNEOS vaccine safety monitoring in the Republic of Korea, 2022: a cross-sectional study
Jaeeun LEE ; Seunghyun Lewis KWON ; Jinhee PARK ; Hyuna BAE ; Hyerim LEE ; Geun-Yong KWON
Osong Public Health and Research Perspectives 2023;14(5):433-438
Objectives:
With the recent global mpox outbreak, the JYNNEOS vaccine (Modified VacciniaAnkara-Bavarian Nordic) was developed as a third-generation smallpox vaccine and initiallyfavored for mpox immunization. Vaccine-associated side effects contribute to vaccinehesitancy. Consequently, tracking adverse events post-immunization is crucial for safety management. This study used data from the national active vaccine safety surveillance conducted in Korea from August 25 to November 24, 2022 to detect potential safety signals and adverse events.
Methods:
Data on health conditions following vaccination were gathered from web-based surveys and reported via active surveillance through the Immunization Registry Information System. This follow-up system functioned via a text message link, surveying adverse events and health conditions beginning on the second day post-vaccination. Information aboutspecific adverse events, including both local and systemic reactions, was collected.
Results:
The study included 86 healthcare workers who had received at least 1 dose of the JYNNEOS vaccine. Among the respondents, 79.1% reported experiencing at least 1 adverse event, with the majority being local reactions at the injection site. The incidence of adverse events was higher following the first dose (67.9%) than after the second dose (34.4%). The most frequently reported adverse event for both doses was mild pain at the injection site.
Conclusion
The study provides crucial information on the safety of the JYNNEOS vaccine, demonstrating that most adverse events were manageable and predominantly localized to the injection site. Nonetheless, additional research is needed on the safety of various vaccineadministration techniques and the vaccine’s effects on broader demographics.
5.Verification of Current Risk Scores for Kawasaki Disease in Korean Children.
Jaeeun SHIN ; Heeyoung LEE ; Lucy EUN
Journal of Korean Medical Science 2017;32(12):1991-1996
The purpose of this study was to evaluate and assess the compatibility of current risk scoring systems from Japan that were developed to predict intravenous immunoglobulin (IVIG) resistance in patients with Kawasaki disease (KD). The authors previously investigated another prediction model for patients with refractory KD in Korea. A retrospective study involving 350 patients with KD who were admitted between January 2014 and December 2015 was performed. Patients younger than 2 years were excluded for the propensity score matching in this study. Patients were classified into IVIG responders and IVIG resistance groups. The well-known Harada, Kobayashi, and Egami risk scores were calculated for each patient, and the proportion of high-risk patients was compared between the two groups for each risk score. Logistic regression analysis revealed that platelets, C-reactive protein (CRP) levels, and aspartate aminotransferase levels were independent predictors of IVIG resistance. Multivariate analysis suggested that platelets and CRP were risk factors. Risk-scoring systems from Japan have good specificity but low sensitivity. Among the three risk scoring systems, the Kobayashi risk score demonstrated significant differences between the IVIG resistance and IVIG responder groups in Korean patients with KD. It is very important to identify IVIG-resistant patients to protect them from ongoing coronary arterial lesion(s); therefore, early prediction and timely optimal additional treatment is of significant benefit. It would be helpful to construct a highly sensitive, exclusive scoring system for Korean patients with KD.
Aspartate Aminotransferases
;
C-Reactive Protein
;
Child*
;
Humans
;
Immunoglobulins
;
Immunoglobulins, Intravenous
;
Japan
;
Korea
;
Logistic Models
;
Mucocutaneous Lymph Node Syndrome*
;
Multivariate Analysis
;
Propensity Score
;
Retrospective Studies
;
Risk Factors
;
Sensitivity and Specificity
6.Diphyllobothrium nihonkaiense Infections in a Family.
Young Bin GO ; Eun Hye LEE ; Jaeeun CHO ; Seoyun CHOI ; Jong Yil CHAI
The Korean Journal of Parasitology 2015;53(1):109-112
Diphyllobothrium latum and Diphyllobothrium nihonkaiense are morphologically similar to each other, and only genetic method can differentiate clearly between the 2 species. A strobila of diphyllobothriid tapeworm discharged from a 7-year-old boy was analyzed to identify the species by mitochondrial cytochrome c oxidase subunit 1 (cox1) gene sequencing. He and his family (total 4 persons) ate slices of 3 kinds of raw fish 16 days before visiting our outpatient clinic. All family members complained of abdominal pain and watery diarrhea. They all expelled tapeworm strobilae in their stools. They were treated with a single oral dose of praziquantel and then complained of no more symptoms. The cox1 gene sequencing of the strobila from the boy revealed 99.9% (687/688 bp) similarity with D. nihonkaiense and only 93.2% (641/688 bp) similarity with D. latum. Thus, we assigned this tapeworm as D. nihonkaiense. This is the first report of D. nihonkaiense infection in a family in Korea, and this report includes the 8th pediatric case in Korea. The current report is meaningful because D. nihonkaiense infection within a family is rare.
Animals
;
Anthelmintics/therapeutic use
;
Child
;
Diphyllobothriasis/*diagnosis/drug therapy/*parasitology
;
Diphyllobothrium/*classification/enzymology/genetics/*isolation & purification
;
Electron Transport Complex IV/genetics
;
*Family Health
;
Humans
;
Korea
;
Male
;
Praziquantel/therapeutic use
;
Sequence Analysis, DNA
;
Treatment Outcome
7.Diphyllobothrium nihonkaiense Infections in a Family.
Young Bin GO ; Eun Hye LEE ; Jaeeun CHO ; Seoyun CHOI ; Jong Yil CHAI
The Korean Journal of Parasitology 2015;53(1):109-112
Diphyllobothrium latum and Diphyllobothrium nihonkaiense are morphologically similar to each other, and only genetic method can differentiate clearly between the 2 species. A strobila of diphyllobothriid tapeworm discharged from a 7-year-old boy was analyzed to identify the species by mitochondrial cytochrome c oxidase subunit 1 (cox1) gene sequencing. He and his family (total 4 persons) ate slices of 3 kinds of raw fish 16 days before visiting our outpatient clinic. All family members complained of abdominal pain and watery diarrhea. They all expelled tapeworm strobilae in their stools. They were treated with a single oral dose of praziquantel and then complained of no more symptoms. The cox1 gene sequencing of the strobila from the boy revealed 99.9% (687/688 bp) similarity with D. nihonkaiense and only 93.2% (641/688 bp) similarity with D. latum. Thus, we assigned this tapeworm as D. nihonkaiense. This is the first report of D. nihonkaiense infection in a family in Korea, and this report includes the 8th pediatric case in Korea. The current report is meaningful because D. nihonkaiense infection within a family is rare.
Animals
;
Anthelmintics/therapeutic use
;
Child
;
Diphyllobothriasis/*diagnosis/drug therapy/*parasitology
;
Diphyllobothrium/*classification/enzymology/genetics/*isolation & purification
;
Electron Transport Complex IV/genetics
;
*Family Health
;
Humans
;
Korea
;
Male
;
Praziquantel/therapeutic use
;
Sequence Analysis, DNA
;
Treatment Outcome
8.Performance Evaluations of the Abbott Alinity m Assay in Comparison with the Abbott m2000Assay for Hepatitis B and Hepatitis C Viruses
Jaeeun YOO ; Beom Se SON ; Eunhee HAN ; Gyong Gi YU ; Seungok LEE
Journal of Laboratory Medicine and Quality Assurance 2020;42(3):150-155
Methods:
The precision, linearity, limit of detection (LOD), correlation with the Abbott m2000 assay, and interference were evaluated.
Results:
The within-laboratory standard deviation ranged from 0.106 to 0.137 log IU/mL for HBV and from 0.073 to 0.097 log IU/mL for HCV, which was lower than the manufacturer’s specification of 0.25 log IU/mL, indicating good precision. Linearity was observed from 1.14 to 8.14 log IU/mL for the HBV assay and from 1.09 to 7.09 log IU/mL for the HCV assay. The LODs of HBV and HCV were 10 and 6.39 IU/mL, respectively, which were equivalent to or better than those claimed by the manufacturer. For comparative evaluation between Alinity m and m2000 assays, 142 HBV and 70 HCV samples were tested. The correlation test revealed a strong correlation for both markers, and the Passing–Bablok regression analysis did not reveal any significant deviation.
Conclusions
The Alinity m assay demonstrated excellent performance for HBV and HCV quantifications with reduced hands-on time and a randomaccess format.
9.Clinical Outcomes between Amniotic Membrane Transplantation and Conjunctival Autograft Using Fibrin Glue for Pterygium Surgery
Su Jeong LEE ; Hong Seok YANG ; Joong Hyuk CHOI ; Jaeeun YU ; Yoo-Ri CHUNG
Journal of the Korean Ophthalmological Society 2021;62(5):605-611
Purpose:
We compared clinical outcomes including recurrence rate between amniotic membrane transplantation (AMT) and conjunctival autograft using fibrin glue and minimal conjunctival sutures for pterygium surgery.
Methods:
We retrospectively analyzed 217 eyes of 198 patients with pterygia who underwent surgery from May 2016 to December 2019. Pterygium excision was performed with conjunctival autograft or AMT, using fibrin glue with both. Recurrence rates and complications were evaluated between the two groups.
Results:
Postoperative recurrences were noted in one of 185 eyes (0.5%) in the conjunctival autograft group, and in six of 32 eyes (18.8%) in the AMT group. The recurrence rate was significantly lower in the conjunctival autograft group (p < 0.001). Logistic regression analysis revealed that conjunctival autograft was associated with a significantly lower risk of pterygium recurrence compared to AMT (odds ratio, 0.023; 95% confidence interval, 0.003-0.206; p = 0.001). No ocular complication was noted in both groups during follow-up.
Conclusions
Pterygium excision with conjunctival autograft using fibrin glue was more effective in preventing recurrence compared to AMT.
10.Transfusion support in hematopoietic stem cell transplantation
Dong Wook JEKARL ; Jae Kwon KIM ; Jay Ho HAN ; Howon LEE ; Jaeeun YOO ; Jihyang LIM ; Yonggoo KIM
Blood Research 2023;58(S1):1-7
Transfusion support for hematopoietic stem cell transplantation (HSCT) is an essential part of supportive care, and compatible blood should be transfused into recipients. As leukocyte antigen (HLA) matching is considered first and as the blood group does not impede HSCT, major, minor, bidirectional, and RhD incompatibilities occur that might hinder transfusion and cause adverse events. Leukocyte reduction in blood products is frequently used, and irradiation should be performed for blood products, except for plasma. To mitigate incompatibility and adverse events, local transfusion guidelines, hospital transfusion committees, and patient management should be considered.