1.Somatic Mutational Analysis of MEN1 and Phenotypic Correlation in Sporadic Parathyroid Tumors .
Young Su CHAE ; Hee Jin KIM ; Sun Wook KIM ; Myung Chul CHANG
Journal of the Korean Surgical Society 2009;76(1):15-22
PURPOSE: MEN1 gene mutation causes multiple endocrine neoplasia type 1. It also suggests that somatic MEN1 gene mutation plays a role in sporadic endocrine tumor. In this study, we examined whether somatic mutations of MEN1 gene are responsible for sporadic parathyroid tumors and correlate with clinical manifestations of parathyroid tumors. METHODS: Somatic mutation of MEN1 gene in the formalin-fixed, paraffin-embedded parathyroid tumor tissue from 8 adenomas, 2 carcinomas and 1 hyperplasia were analyzed by direct sequencing. Clinicopathological parameters were reviewed from medical records and compared with the mutational data. RESULTS: Eight of eleven (73%) sporadic parathyroid tumors had somatic MEN1 mutations of 14 different types. In the 14 types, 13 were a point mutation which is composed of 8 missense mutations, 2 nonsense mutations and 3 silent mutations. One of 14 types is a frameshift deletion of 27 base pairs in exon 2. Somatic mutation was frequent in the exon 2 and exon 10. Four types of polymorphism were found. There was no correlation between the presence of mutations and clinicopathological phenotype of parathyroid tumors. CONCLUSION: This result suggests that somatic mutation of MEN1 gene plays a definite role in sporadic parathyroid tumor formation.
Adenoma
;
Base Pairing
;
Codon, Nonsense
;
Exons
;
Hyperplasia
;
Medical Records
;
Multiple Endocrine Neoplasia Type 1
;
Mutation, Missense
;
Phenotype
;
Point Mutation
2.T Cell-specific Immunosuppression Using Tautomycetin or PTD-conjugated Protein Drugs.
Wook Jin CHAE ; Je Min CHOI ; Jung Jin YANG ; Sang Kyou LEE
Yonsei Medical Journal 2004;45(6):978-990
No abstract available.
Animals
;
Antibiotics, Antifungal/*therapeutic use
;
Humans
;
Immunosuppression/*methods
;
Protein Structure, Tertiary
;
T-Lymphocytes/*immunology
;
*Transduction, Genetic
3.Self-expandable Graft Stenting in an Iatrogenic Fistula between Common Carotid Artery and Internal Jugular Vein.
Sung Chul JIN ; Dong Hyuk LEE ; Chae Wook HUH
Journal of Cerebrovascular and Endovascular Neurosurgery 2017;19(3):213-216
A 47-year-old woman with stage IV chronic kidney disease developed a fistula between common carotid artery (CCA) and internal jugular vein (IJV) during central catheterization of the right IJV. The patient was treated with a self-expandable graft stent, which achieved successful closure of the carotid-jugular fistula. As demonstrated in our case, self-expandable graft stents could be a feasible treatment option for CCA-IJV fistulas without additional interventional procedures such as balloon angioplasty.
Angioplasty, Balloon
;
Carotid Artery, Common*
;
Catheterization, Central Venous
;
Female
;
Fistula*
;
Humans
;
Jugular Veins*
;
Middle Aged
;
Renal Insufficiency, Chronic
;
Stents*
;
Transplants*
4.Three Cases of Anti-LW Antibody Identification at a Tertiary Hospital in Korea
Seungwan CHAE ; Kyoung Bo KIM ; Haein YU ; Hwa Jin CHOI ; Dong Wook JEKARL ; Jihyang LIM ; Yonggoo KIM
Korean Journal of Blood Transfusion 2022;33(1):39-45
The Landsteiner–Wiener (LW) antigen is a type of red blood cell antigen. Anti-LW appears in various situations, including alloantibodies, autoantibodies, and even transiently occurring antibodies. Anti-LW has similar characteristics to anti-D, so it can interfere with interpreting pre-transfusion tests and finding compatible blood. This paper introduces three cases in whom anti-LW was detected through antibody identification tests. All three cases were examined using the column agglutination technique with ID-DiaPanel (Bio-Rad, Hercules, CA, USA) on a LISS/Coombs card, ID-DiaPanel p (Bio-Rad) on a NaCl/Enzyme card, and ID-DiaPanel (Bio-Rad) on a LISS/Coombs card using red blood cells treated with dithiothreitol. The auto-control test, direct antiglobulin test, and umbilical cord blood test were also performed. In all three cases, the reaction with D-positive panel cells was stronger than that with the D-negative panel cells, and two of them showed a pan-agglutinated reaction in ID-DiaPanel p (Bio-Rad) with NaCl/Enzyme card. They were reported as anti-LW, and as in these cases, anti-LW can occur under a range of conditions and interfere with proper transfusion. Therefore, it is important to identify anti-LW accurately, and if anti-LW is present, the transfusion of D-negative ABO matched blood should be recommended because of the low expression of the LW-antigen. On the other hand, D-positive blood is not a contraindication when an urgent transfusion is needed.
5.A Case of Hypersomnolence with Subclinical Hypothyroidism Treated with Levothyroxine.
Minkyeong KIM ; Song Hwa CHAE ; Eun Hye OH ; Baik Kyun KIM ; Dae Jin KIM ; Jae Wook CHO
Journal of Sleep Medicine 2015;12(1):23-25
We present a patient who complained of excessive daytime sleepiness (EDS), which started three years ago. She had no other medical, neurological, and psychiatric disorders. Nocturnal polysomnography did not indicate any sleep disorders, which might cause daytime EDS, such as obstructive sleep apnea. The following multiple sleep latency test was not compatible for narcolepsy. Her laboratory findings were remarkable for subclinical hypothyroidism, although free T4 and T3 were within reference rage, she had elevated thyroid stimulating hormone. After four weeks of levothyroxine treatment, her EDS resolved. The hypersomnolence, as a presenting symptom of subclinical hypothyroidism, was optimally treated after thyroid hormone replacement.
Disorders of Excessive Somnolence*
;
Humans
;
Hypothyroidism*
;
Narcolepsy
;
Polysomnography
;
Rage
;
Sleep Apnea, Obstructive
;
Sleep Wake Disorders
;
Thyroid Gland
;
Thyrotropin
;
Thyroxine*
6.The Clinical Measures Associated with C-peptide Decline in Patients with Type 1 Diabetes over 15 Years.
Tae Ho LEE ; Ah Reum KWON ; Ye Jin KIM ; Hyun Wook CHAE ; Ho Seong KIM ; Duk Hee KIM
Journal of Korean Medical Science 2013;28(9):1340-1344
This study was done to characterize the natural course of C-peptide levels in patients with type 1 diabetes and identify distinguishing characters among patients with lower rates of C-peptide decline. A sample of 95 children with type 1 diabetes was analyzed to retrospectively track serum levels of C-peptide, HbA1c, weight, BMI, and diabetic complications for the 15 yr after diagnosis. The clinical characteristics were compared between the patients with low and high C-peptide levels, respectively. The average C-peptide level among all patients was significantly reduced five years after diagnosis (P < 0.001). The incidence of diabetic ketoacidosis was significantly lower among the patients with high levels of C-peptide (P = 0.038). The body weight and BMI standard deviation scores (SDS) 15 yr after diagnosis were significantly higher among the patients with low C-peptide levels (weight SDS, P = 0.012; BMI SDS, P = 0.044). In conclusion, C-peptide level was significantly decreased after 5 yr from diagnosis. Type 1 diabetes patients whose beta-cell functions were preserved might have low incidence of diabetic ketoacidosis. The declines of C-peptide level after diagnosis in type 1 diabetes may be associated with changes of body weight and BMI.
Adolescent
;
Body Mass Index
;
Body Weight
;
C-Peptide/*blood
;
Child
;
Child, Preschool
;
Diabetes Complications
;
Diabetes Mellitus, Type 1/blood/*diagnosis
;
Diabetic Ketoacidosis/epidemiology
;
Diabetic Retinopathy/epidemiology
;
Female
;
Follow-Up Studies
;
Hemoglobin A, Glycosylated/analysis
;
Humans
;
Incidence
;
Infant
;
Male
;
Peripheral Nervous System Diseases/epidemiology
;
Retrospective Studies
7.Relationships among Depression, Self-rated Health, Health Behaviors and Drug Abuse by Job Status.
Su Mi CHAE ; Jin Wook JEONG ; Sang Young LEE ; Kyung Hwa HEO
Korean Journal of Occupational Health Nursing 2015;24(3):245-257
PURPOSE: This study was performed to investigate the present condition of drug abuse and its association with depression, self-rated health and health behaviors by job status in Korean adults. METHODS: Data were derived from the study on four addiction problem and suicide in 2014. Multiple logistic regression was used to analyze patterns of drug abuse according to depression, self-rated health and health behaviors. RESULTS: The prevalence of drug abuse during the past year was 17.1% of the 4,018 subjects. About 3.3 times risk for drug abuse was found among individuals who had high depression scores. The risk of drug abuse was higher among those who were smoking (OR:1.46, 95% CI:1.17~1.83), drinking more frequently (OR:1.30, 95% CI:1.07~1.58), sleeping insufficiently (OR:1.31, 95% CI:1.03~1.67), eating irregularly (OR:1.45, 95% CI:1.19~1.76). Drug abuse problem was detected more seriously among employed than unemployed adults. CONCLUSION: Health-related behaviors, such as smoking, drinking, sleeping, eating should be considered simultaneously when designing strategies to deal with drug abuse problem, and it is important to understand the interaction between drug abuse and mental health. Furthermore, workplace based intervention can be effective in solving drug abuse problem.
Adult
;
Depression*
;
Drinking
;
Eating
;
Health Behavior*
;
Humans
;
Logistic Models
;
Mental Health
;
Prevalence
;
Smoke
;
Smoking
;
Substance-Related Disorders*
;
Suicide
8.Heart-Model-Based Automated Method for Left Ventricular Measurements in Cardiac MR: Comparison with Manual and Semi-automated Methods.
Seung Hoon CHAE ; Whal LEE ; Eun Ah PARK ; Jin Wook CHUNG
Journal of the Korean Society of Magnetic Resonance in Medicine 2013;17(3):200-206
PURPOSE: To assess the effect of applying an automated heart model based measurements of left ventricle (LV) and compare with manual and semi-automated measurements at Cardiovascular MR Imaging. MATERIALS AND METHODS: Sixty-two patients who underwent cardiac 1.5T MR imaging were included. Steady state free precession cine images of 20 phases per cardiac cycle were obtained in short axis views and both 2-chamber and 4-chamber views. Epicardial and endocardial contours were drawn in manual, automated, and semi-automated ways. Based on these acquired contour sets, the end-diastolic (ED) and end-systolic (ES) volumes, ejection fraction (EF), systolic volume (SV) and LV mass were calculated and compared. RESULTS: In EDV and ESV, the differences among three measurement methods were not statistically significant (P = .399 and .145, respectively). However, in EF, SV, and LV mass, the differences were statistically significant (P=.001, <001, <001, respectively) and the measured value from automated method tend to be consistently higher than the values from other two methods. CONCLUSION: An automatic heart model-based method grossly overestimate EF, SV and LV mass compared with manual or semi-automated methods. Even though the method saves a considerable amount of efforts, further manual adjustment should be considered in critical clinical cases.
Axis, Cervical Vertebra
;
Heart
;
Heart Ventricles
;
Humans
9.A Study on the Age-Dependent Antiepileptic Effects of the Ketogenic Diet in the Pentylenetetrazole-Seizure Animal Model.
Dong Wook KIM ; Soo Ahn CHAE ; Ho Jin PARK
Journal of the Korean Child Neurology Society 2002;10(1):29-34
PURPOSE: The ketogenic diet(KD) has been felt to be clinically more efficacious at younger ages, presumably because of the enhanced ability of the immature brain to extract and utilize ketone bodies. The present study was designed to investigate age-dependent effects of the KD on pentylenetetrazole(PTZ)-seizure severity in rats. METHODS: A KD([fat]:[protein+carbohydrate] ratio of 4.3:1) was administered to male Sprague-Dawley rats for 3 weeks, while control animals were fed a standard rodent chow. Dietary treatment was initiated at either postnatal 9 or 12 weeks. Seizures were chemically induced by intraperitoneal injection of PTZ(60 mg/kg) and blood beta-hydroxybutyrate (BHB) levels were assayed on treatment day 21. Seizure severity was evaluated by using a scoring system of seizure behaviors:0, no seizure; 0.5, abnormal behavior; 1, myoclonic jerk; 2, myoclonic jerk with jumping; 3, forelimb clonus with preserving righting reflex; 4, generalized clonic seizure with brief loss of righting reflex; 5, generalized tonic clonic seizure; 6, expire. A greater score represents a more severe seizure. RESULTS: In 9 weeks old rats, the mean(+/-SEM) seizure behavior scores were 3.5+/-1.2 [n=19] and 4.4+/-0.9[n=17] for the KD-treated and control groups, respectively(P<0.05), whereas in 12 weeks old animals, no significant differences in seizure behavior scores between the two groups(3.9+/-0.3[n=17] vs. 4.1+/-0.3[n=16], respectively). Blood BHB levels in the KD-treated group were significantly higher than those of the control group in 9 (1.21+/-0.14[n=19] vs. 0.14+/-0.12[n=17] mM, respectively; P<0.001) and 12(0.64+/-0.08[n=17] vs. 0.18+/-0.02[n=16] mM, respectively; P<0.001) weeks old animals. CONCLUSION: The KD was previously reported to decrease PTZ-seizure severity in 3 weeks old rats. In this study, the KD decreases PTZ-seizure severity in 9 weeks old rats, but is ineffective in 12 weeks old rats. These results parallel clinical experience, where the beneficial effects of the KD are felt to be age-dependent.
3-Hydroxybutyric Acid
;
Animals*
;
Brain
;
Forelimb
;
Humans
;
Injections, Intraperitoneal
;
Ketogenic Diet*
;
Ketone Bodies
;
Male
;
Models, Animal*
;
Myoclonus
;
Pentylenetetrazole
;
Rats
;
Rats, Sprague-Dawley
;
Reflex, Righting
;
Rodentia
;
Seizures
10.Prevalence of PPNG in Seoul ( 1993 ).
Jae Hong KIM ; Jin Bok KIM ; Chul Wook KWON ; Young Tae KIM ; Joong Hwan KIM ; Chae Soo KIM ; Sung In CHO ; Hak Kyu LEE
Korean Journal of Dermatology 1995;33(2):275-279
BACKGROUND: In recent years gonorrhea has been panendemic and remains one of the most common STDs in the world, especially in developing countries. OBJECTIVE & METHOD: For the detection of a more effective teripeutic regimen and assessing the prevalence of PPNG, will have been trying to study the paieits who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. RESULTS: In 1993, 187 strains of N. gonorrhoeae were isolated, ar, ong which 139(74.3%) were PPNG. CONCLUSION: Our results suggests that the prevalence of PPNG in Seoul is still increasing.
Developing Countries
;
Gonorrhea
;
Prevalence*
;
Public Health
;
Seoul*
;
Sexually Transmitted Diseases