1.A 23-year-old female with Down syndrome accompanied by obstructive sleep apnea and acute respiratory failure
Seungjae LEE ; Joowon LEE ; Kyunghoon KIM
Allergy, Asthma & Respiratory Disease 2024;12(2):93-98
This case report details a 23-year-old female with Down syndrome who suffered from acute respiratory failure due to severe obstructive sleep apnea syndrome and accompanying pulmonary arterial hypertension (PAH). The patient presented with obesity, adenotonsillar hypertrophy, and craniofacial anomalies commonly seen in Down syndrome, predisposing her to sleep-disordered breathing. Upon intensive care unit admission, she exhibited cardiomegaly, bilateral pulmonary edema, and right ventricular dysfunction. Polysomnography revealed severe sleep apnea with an apnea-hypopnea index of 108.7/hr. Treatment modalities included noninvasive positive pressure ventilation, diuretics, antibiotics, and positive airway pressure (PAP) devices to manage hypercapnia, pulmonary edema, and sleep apnea. PAH, a recognized complication of untreated sleep apnea, contributed to right ventricular dysfunction. A multidisciplinary approach was vital, with long-term management centered on continuous PAP therapy and comprehensive obesity management. This case underscores the intricate interplay between Down syndrome, sleep apnea, and PAH, highlighting the significance of early recognition and coordinated intervention in individuals with Down syndrome to enhance overall outcomes and quality of life.
2.Diagnosis of Smith-Magenis Syndrome in a Patient with Mental Retardation and Sleep Disturbance Confirmed by Multiplex Ligation-dependent Probe Amplification.
Joowon OH ; Seungjae LEE ; Kyung A LEE ; Jongha YOO
Laboratory Medicine Online 2018;8(2):71-74
No abstract available.
Diagnosis*
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Humans
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Intellectual Disability*
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Multiplex Polymerase Chain Reaction*
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Smith-Magenis Syndrome*
3.Clinical Impact of Coronavirus Disease 2019 Outbreaks in Korea on Seizures in Children
Seungjae LEE ; Su-Kyeong HWANG ; Yun-Jeong LEE ; Hyunwoo BAE ; Soonhak KWON
Annals of Child Neurology 2024;32(3):154-160
Purpose:
Coronavirus disease 2019 (COVID-19) can be associated with neurological complications. This study investigated the impact of COVID-19 outbreaks on seizure incidence and duration in children in Korea.
Methods:
We retrospectively analyzed medical records from Kyungpook National University Children’s Hospital, including 768 children with seizures during the peak COVID-19 outbreaks in March and August 2022, and compared patterns with the same periods in 2021. We examined demographic and clinical characteristics, causes of seizures, underlying conditions, seizure durations, and COVID-19 test results.
Results:
Out of 16,373,836 COVID-19 cases during the first peak, 25.6% were children (4,184,383), and during the second peak, 20.5% of 6,400,244 cases were children (1,314,331). No significant age differences were observed between either peak and the previous year. However, when compared to the previous year, febrile seizures (FS) were more common during both peaks (25.9% vs. 65.1% in the first peak; 34.3% vs. 59.2% in the second peak). The prevalence of FS was significantly higher in the COVID-19-positive group (84.1%) than in the COVID-19-negative group (51.9%). The incidence of new-onset seizures or breakthrough seizures showed no significant difference. Seizure duration and the incidence of status epilepticus (SE) showed no significant changes, but SE was more common in the COVID-19-negative group (17.1% vs. 6.2%). The clinical features of FS were similar in both groups.
Conclusion
COVID-19 appeared to increase the risk of FS in children, but there was no significant impact on the risk of breakthrough seizures or SE in children with epilepsy. Nevertheless, larger-scale studies are necessary.
4.Performance Evaluation of the ABL90 FLEX PLUS Point-of-Care Analyzer in Measuring Creatinine Levels
Seungjae LEE ; Hyo-Jun AHN ; Jongha YOO
Laboratory Medicine Online 2020;10(3):202-206
Background:
To diagnose acute renal failure, creatinine levels in whole blood are typically assessed using point-of-care testing (POCT) methods. The present study aimed to evaluate the performance of a newly developed POCT blood gas analyzer, the ABL90 FLEX PLUS (Radiometer, Denmark), which can measure creatinine in blood.
Methods:
Precision and linearity of the ABL90 FLEX PLUS were evaluated and compared with those of the Beckman Coulter AU5800 (Beckman Coulter, USA), according to the CLSI guidelines for creatinine measurement performance.
Results:
For the ABL90 FLEX PLUS, the total imprecision (%CV) levels of two control materials were measured to be 0.0% and 0.8%, while linearity was evaluated, with the R2 value measured to be 0.9993 (0.4-8.4 mg/dL). Compared to the AU5800, the ABL90 FLEX PLUS correlation coefficient (r) was found to be 0.989. The 95% limits of agreement were determined to be -0.649 and 0.643 mg/dL (-18.8% and 17.8%).
Conclusions
The ABL90 FLEX PLUS exhibited good performance for creatinine test. This indicates that the ABL90 FLEX PLUS can be potentially useful in clinical laboratories.
5.Nutritional and health consequences are associated with food insecurity among Korean elderly: Based on the fifth (2010) Korea National Health and Nutrition Examination Survey (KNHANES V-1).
Seungjae LEE ; Kyung Won LEE ; Ji Eun OH ; Mi Sook CHO
Journal of Nutrition and Health 2015;48(6):519-529
PURPOSE: The purpose of this study was to examine the prevalence of food insecurity in Korean elderly and to analyze the health status as well as food and nutrient intakes according to food insecurity status. METHODS: A total of 939 elderly subjects (over 65 years old) were used in our analysis from the fifth 2010 Korean National Health and Nutrition Examination Survey (KNHANES V-1). The variables consisted of general characteristics, physical and mental health, nutrient intake, rate of deficient intake of energy and nutrients compared with Dietary Reference Intakes for Koreans (KDRIs) and food quality and diversity according to the status of food insecurity. Food insecurity status was measured using a self-reported food security questionnaire on the dietary situation in the previous year, and participants were classified according to three groups: food secure group, mildly food insecure group, and moderately/severely food insecure group. RESULTS: The proportion of the food insecure group was approximately 67% and the food insecure group had lower income and educational status than the food secure group. Food insecurity was associated with worse physical and mental health status after adjusting potentially confounding variables. The results showed that food insecurity in Korean elderly significantly affected mental health (including stress cognition, depression experience, and suicide thoughts) which exceeded stages of physical health. In addition, food insecurity showed significant association with low nutrient intake and high rate of deficient intakes of energy and nutrients compared with KDRIs, and a reduction of dietary quality and diversity was indicated in the food insecure group. CONCLUSION: This study concludes that the prevalence of food insecurity may affect the physical and mental health as well as dietary intake of the elderly Korean population. Therefore, food insecurity should be considered as an important public health issue in Korea.
Aged*
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Cognition
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Confounding Factors (Epidemiology)
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Depression
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Educational Status
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Food Quality
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Food Supply*
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Humans
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Korea*
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Mental Health
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Nutrition Surveys*
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Prevalence
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Public Health
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Recommended Dietary Allowances
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Suicide
7.A study on dietary habits and food intakes in adults aged 50 or older according to depression status.
Seungjae LEE ; Yuri KIM ; Sunhee SEO ; Mi Sook CHO
Journal of Nutrition and Health 2014;47(1):67-76
PURPOSE: This study was conducted in order to analyze the dietary habits and food intake status according to the prevalence of depression in adults. METHODS: A total of 496 subjects, 224 men and 272 women aged 50 to 100 years were recruited from more than 13 cities in Korea. The questionnaires consisted of general characteristics, dietary life status, food intakes, the mean mini dietary assessment and satisfaction with food-related life questionnaire of the subjects to ask according to the degree of depression. Depression status was evaluated according to the Korean form of the Geriatric Depression Scale (K-GDS). RESULTS: All subjects were divided into depression or normal groups; the prevalence of depression was 13.8% (male) and 23.9% (female). People aged 65 or older were more likely to have higher prevalence of depression and to be bereaved. People in the depression group had poor appetite, almost never dined-out, and ate alone. The food intake of miscellaneous cereals, beans, tofu, chicken/duck meat, cabbage, carrot/amber, fungi, apple, pear, strawberry, grapes, and banana was significantly higher in the normal group compared with the depression group. In particular, significantly higher intake of vegetables and fruits was observed in the normal group. In addition, subjects in the depression group ate more fatty meat and were more dissatisfied with food-related life than those in the normal group. CONCLUSION: The results of this study imply that the prevalence of depression may affect the dietary habits, food intake, and dietary behaviors in the older adult population.
Adult*
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Appetite
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Brassica
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Edible Grain
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Depression*
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Eating
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Fabaceae
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Female
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Food Habits*
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Fragaria
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Fruit
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Fungi
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Humans
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Korea
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Male
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Meat
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Musa
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Prevalence
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Pyrus
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Surveys and Questionnaires
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Soy Foods
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Vegetables
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Vitis
8.The Effects of Silica Nanoparticles in Macrophage Cells.
Seungjae KIM ; Jiyoung JANG ; Hyojin KIM ; Hoon CHOI ; Kangtaek LEE ; In Hong CHOI
Immune Network 2012;12(6):296-300
Silica nanoparticles, which are applicable in many industrial fields, have been reported to induce cellular changes such as cytotoxicity in various cells and fibrosis in lungs. Because the immune system is the primary targeting organ reacting to internalized exogenous nanoparticles, we tried to figure out the immunostimulatory effect of silica nanoparticles in macrophages using differently sized silica nanoparticles. Using U937 cells we assessed cytotoxicity by CCK-8 assay, ROS generation by CM-H2DCFDA, intracellular Ca++ levels by staining with Fluo4-AM and IL-8 production by ELISA. At non-toxic concentration, the intracellular Ca++ level has increased immediately after exposure to 15 nm particles, not to larger particles. ROS generation was detected significantly in response to 15 nm particles. However, all three different sizes of silica nanoparticles induced IL-8 production. 15 nm silica nanoparticles are more stimulatory than larger particles in cytotoxicity, intracellular Ca++ increase and ROS generation. But IL-8 production was induced to same levels with 50 or 100 nm particles. Therefore, IL-8 production induced by silica nanoparticles may be dependent on other mechanisms rather than intracellular Ca++ increase and ROS generation.
Enzyme-Linked Immunosorbent Assay
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Fibrosis
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Immune System
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Interleukin-8
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Lung
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Macrophages
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Nanoparticles
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Silicon Dioxide
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Sincalide
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U937 Cells