1.The Prevalence of Metabolic Syndrome according to the Degree of Glucose Metabolism Impairment.
Mi Hee KONG ; Hyun Kook CHOI ; An Jin JUNG ; Byeong Hun AHN ; Bom Taeck KIM ; Kwang Min KIM
Journal of the Korean Academy of Family Medicine 2006;27(3):182-189
BACKGROUND: The metabolic syndrome is a cluster of related cardiovascular risk factors and it is the cause of morbidity and mortality in cardiovascular diseases. Recently, new diagnostic criteria of glucose metabolism impairment has been recommended. The purpose of this study was to estimate the difference of cardiovascular risk by investigating the prevalence of metabolic syndrome according to the degree of glucose metabolism impairment. METHODS: A population of 757 subjects was selected from a database of individuals who visited a health promotion center. We classified these subjects into 5 groups [Normal, Isolated impaired glucose tolerance (I-IGT), Isolated impaired fasting glucose (I-IFG), combined IGT with IFG (IGT/IFG) and Diabetes]. We compared the general characteristics, Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) and the prevalence of metabolic syndrome in these groups. RESULTS: HOMA-IR and the prevalence of metabolic syndrome in the IGT/IFG and the Diabetes group were significantly greater than the Normal group. HOMA-IR and the prevalence of metabolic syndrome of the I-IGT and the I-IFG group were not significantly different with the Normal group. CONCLUSION: The insulin resistance and the prevalence of metabolic syndrome in the IGT/IFG group was significantly greater than the Normal group, and its presence may increase the risk of cardiovascular diseases. Therefore, it is important to control other combined metabolic disorders to prevent cardiovascular events after effective selection for IGT/ IFG.
Cardiovascular Diseases
;
Fasting
;
Glucose*
;
Health Promotion
;
Homeostasis
;
Insulin Resistance
;
Metabolism*
;
Mortality
;
Prevalence*
;
Risk Factors
2.Characteristic Findings of Exercise ECG Test, Perfusion SPECT and Coronary Angiography in Patients with Exercise Induced Myocardial Stunning.
Byeong Cheol AHN ; Ji Hyoung SEO ; Jin Ho BAE ; Shin Young JEONG ; Hun Sik PARK ; Jaetae LEE ; Shung Chull CHAE ; Kyu Bo LEE
Korean Journal of Nuclear Medicine 2004;38(3):225-232
PURPOSE: Transient wall motion abnormality and contractile dysfunction of the left ventricle (LV) can be observed in patients with coronary artery disease due to post-stress myocardial stunning. To understand clinical characteristics of stress induced LV dysfunction, we have compared the findings of exercise stress test, myocardial perfusion SPECT and coronary angiography between subjects with and without post-stress LV dysfunction. MATERIALS AND METHODS: Among subjects who underwent exercise stress test, myocardial perfusion SPECT and coronary angiography within a month of interval, we enrolled 36 patients with post-stress LV ejection fraction (LVEF) was > or=5% lower than rest (stunning group) and 16 patients with difference of post-stress and rest LVEF was lesser than 1% (non-stunning group) for this study. Treadmill exercise stress gated myocardial perfusion SPECT was performed with dual head SPECT camera using 740 MBq Tc-99m MIBI and coronary angiography was also performed by conventional Judkins method. RESULTS: Stunning group had a significantly higher incidence of hypercholesterolemia than non-stunning group (45.5 vs. 7.1%, p=0.01). Stunning group also had higher incidence of diabetes mellitus and lower incidence of hypertension, but these were not statistically significant. Stunning group had larger and more severe perfusion defect in stress perfusion myocardial SPECT than non-stunning group (extent 18.2 vs. 9.2%, p=0.029; severity 13.5 vs. 6.9, p=0.040). Stunning group also had higher degree of reversibility of perfusion defect, higher incidence of positive exercise stress test and higher incidence of having severe stenosis (80~99%) in coronary angiography than non-stunning group, but these were not statistically significant. In stunning group, all of 4 patients without perfusion defect had significant coronary artery stenosis and had received revascularization treatment. CONCLUSION: Patients with post-stress LV dysfunction had larger and more severe perfusion defect and severe coronary artery stenosis than patients without post-stress LV dysfunction. All of the patients without perfusion defect in stunning group had significant coronary artery stenosis and needed revascularization. Therefore, we suggest that invasive diagnostic procedures and therapeutic interventions might be needed in patients with post-stress LV dysfunction.
Angiography
;
Constriction, Pathologic
;
Coronary Angiography*
;
Coronary Artery Disease
;
Coronary Stenosis
;
Diabetes Mellitus
;
Electrocardiography*
;
Exercise Test
;
Head
;
Heart Ventricles
;
Humans
;
Hypercholesterolemia
;
Hypertension
;
Incidence
;
Myocardial Stunning*
;
Perfusion*
;
Tomography, Emission-Computed, Single-Photon*
3.Preventive Effects of Multi-Lamellar Emulsion on Low Potency Topical Steroid Induced Local Adverse Effect.
Geun Dong SUL ; Hyun Jung PARK ; Jong Hwan BAE ; Keum Duck HONG ; Byeong Deog PARK ; Jaesun CHUN ; Se Kyoo JEONG ; Seung Hun LEE ; Sung Ku AHN ; Hyun Jung KIM
Annals of Dermatology 2013;25(1):5-11
BACKGROUND: Topical steroid treatment induces diverse local Wand systemic adverse effects. Several approaches have been tried to reduce the steroid-induced adverse effects. Simultaneous application of physiological lipid mixture is also suggested. OBJECTIVE: Novel vehicles for topical glucocorticoids formulation were evaluated for the efficacy of reducing side-effects and the drug delivery properties of desonide, a low potency topical steroid. METHODS: Transcutaneous permeation and skin residual amount of desonide were measured using Franz diffusion cells. The in vivo anti-inflammatory activity was evaluated using murine model. RESULTS: Topical steroids formulation containing desonide, in either cream or lotion form, were prepared using multi-lamellar emulsion (MLE), and conventional desonide formulations were employed for comparison. MLE formulations did not affect the anti-inflammatory activity of the desonide in phobol ester-induced skin inflammation model, compared with conventional formulations. While the penetrated amounts of desonide were similar for all the tested formulations at 24 hours after application, the increased lag time was observed for the MLE formulations. Interestingly, residual amount of desonide in epidermis was significantly higher in lotion type MLE formulation. Steroid-induced adverse effects, including permeability barrier function impairment, were partially prevented by MLE formulation. CONCLUSION: Topical desonide formulation using MLE as a vehicle showed a better drug delivery with increased epidermal retention. MLE also partially prevented the steroid-induced side effects, such as skin barrier impairment.
Desonide
;
Diffusion
;
Epidermis
;
Glucocorticoids
;
Inflammation
;
Permeability
;
Retention (Psychology)
;
Skin
;
Steroids
4.Post-stress Measurements of Left Ventricular Function With Gated Perfusion SPECT: Comparison with Resting Measurements by using Exercise and Adenosine Stress.
Yong Whi PARK ; Ju Yup HAN ; Byeong Cheol AHN ; Hun Sik PARK ; Yongkeun CHO ; Jaetae LEE ; Shung Chull CHAE ; Jae Eun JUN ; Eu Hyun PARK
Korean Circulation Journal 2001;31(10):1019-1026
BACKGROUND AND OBJECTIVES: This study was designed to investigate the relationship between myocardial perfusion defect in single photon emission tomography(SPECT) and the difference in left ventricular functional parameters obtained after stress and at rest. MATERIALS AND METHODS: Eighty five patients known to have coronary artery disease (CAD) or suspected to have CAD underwent gated Tc-99m sestamibi SPECT using one or separate day rest/stress protocol. We compared post-stress left ventricular ejection fraction (LVEF-s) with that at rest (LVEF-r) in gated myocardial SPECT. We considered myocardial stunning was developed when LVEF was >5% lower than that at rest. METHODS: Forty one (48%) patients demonstrated reversible or irreversible perfusion defects in gated perfusion SPECT (group 1). Forty four (52%) patients demonstrated normal perfusion status (group 2). In group 1, LVEF-s was significantly lower than that at rest([mean+/-SD] 46+/-15.5 vs 48+/-16.0 respectively, p<0.05). In group 2, There was no significant difference among LVEF-s and LVEF-r(60+/-7.6 vs 61+/-7.9, p=NS). In group 1, no difference was observed between LVEF-s and LVEF-r by stress modes. In 13 (32%) of 41 patients with perfusion defects, LVEF-s was >5% lower than LVEF-r. CONCLUSION: The LVEF obtained after stress with gated SPECT may not reflect true resting values. We recommend gated myocardial perfusion SPECT should be performed also at rest especially in patients with myocardial perfusion defects.
Adenosine*
;
Coronary Artery Disease
;
Humans
;
Myocardial Stunning
;
Perfusion*
;
Stroke Volume
;
Tomography, Emission-Computed, Single-Photon*
;
Ventricular Function, Left*
5.Differences in the serum immunoglobulin concentrations between dairy and beef calves from birth to 14 days of age.
Guk Hyun SUH ; Tai Young HUR ; Dong Soo SON ; Chang Yong CHOE ; Young Hun JUNG ; Byeong Suk AHN ; Chai Yong LEE ; Chung Gil LEE
Journal of Veterinary Science 2003;4(3):257-260
The changes in serum levels of immunoglobulins G, M and A of dairy and beef calves of well-managed herds were monitored from birth to 14 days post partum using single radial immunodiffusion. Serum levels of all three immunoglobulin classes reached its peak at 24 hours in both groups of calves after birth, at which time there were very high levels of each immunoglobulin present. The mean IgM and IgA levels of the two groups became same at 6 days and 8 days of age, respectively but the mean IgG level of beef calves was approximately twice that of dairy calves throughout the experiment.
Animals
;
Animals, Newborn
;
Cattle/*immunology
;
Female
;
Immunodiffusion/veterinary
;
Immunoglobulin A/blood
;
Immunoglobulin G/blood
;
Immunoglobulin M/blood
;
Immunoglobulins/*blood
;
Male
;
Pregnancy
6.Insulin-like Growth Factor 1 Level and Its Relating Factor in Korean Healthy Adults.
Hyun Kook CHOI ; Mi Hee KONG ; Byeong Hun AHN ; Sang Man KIM ; Duck Ju LEE ; Kwang Min KIM
Korean Journal of Family Medicine 2009;30(1):15-22
BACKGROUND: The concern about growth hormone, used for treatment of growth hormone deficiency, wasting diseases, is increasing recently. There is much to be desired about the study for the reference range of insulin-like growth factor-1 (IGF-1) of Korean healthy adults, because there was a lack of studies of IGF-1 level. The authors investigated the concentration of IGF-1 according to age groups, and its correlation factors in healthy adults in Korea. METHODS: The subjects were 10,681 Korean healthy adults (5,263 females, 5,418 males) aged over 20 years, who visited the Department of Family Practice and Community Health in a university hospital from March 1998 to December 2003. We excluded the subjects with DM, liver diseases, renal diseases, thyroid diseases, and cancer. We measured the serum IGF-1, fasting glucose, lipid profile, serum albumin, protein, waist circumference, hip circumference, and body mass index. RESULTS: IGF-1 level showed gender difference (184.6 +/- 86.3 ng/mL for men, 178.6 +/- 91.8 ng/mL for women) and decreased significantly with age. Age was the most reliable correlation factor with IGF-1 (R: -0.325 for men, R: -0.463 for women). After adjusting fot age and weight, IGF-1 showed correlations with total protein, albumin, creatinine, triglycerides, and HDL cholesterol for men and height, waist circumference, body mass index, waist-hip ratio, systolic blood pressure, total protein, albumin, creatinine, triglycerides, and HDL cholesterol for women. CONCLUSION: IGF-1 concentration decreased with age over 20 years old. It showed the highest correlation with age in both gender.
Adult
;
Aged
;
Blood Pressure
;
Body Mass Index
;
Cholesterol, HDL
;
Creatinine
;
Family Practice
;
Fasting
;
Female
;
Glucose
;
Growth Hormone
;
Hip
;
Humans
;
Insulin-Like Growth Factor I
;
Korea
;
Liver Diseases
;
Male
;
Reference Values
;
Serum Albumin
;
Thyroid Diseases
;
Triglycerides
;
Waist Circumference
;
Waist-Hip Ratio
;
Wasting Syndrome
7.In Vitro Chemosensitivity Test for the Evaluation of Efficiency of Hyperthermia in Gastrointestinal Cancer Cell Lines.
Jeong Hwan YOOK ; Byeong Yul AHN ; Geum Hee KOO ; Hun SEO ; Choon Sik JEONG ; Sung Tae OH ; Byung Sik KIM ; Kun Chun PARK ; Jin Cheon KIM
Journal of the Korean Cancer Association 1999;31(5):931-938
PURPOSE: This study was designed to establish the experimental background of intra- peritoneal hyperthermo-chemotherapy in gastrointestinal cancer. MATERIALS AND METHODS: We established stomach cancer cell lines; KATO-III, MKN45, AMC1 and colon cancer cell lines; AMC5, AMC6, CloneA, CCL188, C106, KM-12C. We performed chemosensitivity test by using MTT assay and calculated ICso of each chemotherapeutic agent. We confirmed antitumor effect of hyperthermia at 40C and 43C and antitumor synergistic effect with each chemotherapeutic agent at 40C and 43C. RESULTS: The ICso was calculated in 7 (78%) of 9 cell lines for 5-FU, 6 (67%) for MMC, 5 (56%) for ADM, 1 (11%) for CDDP and VP-16. Antitumor effect of hyperthermia at 40C was not found, but, that at 43C was found except KATO-III and AMC6. In stomach cancer cell lines, antitumor synergistic effect of hyperthermia with anticancer drugs at 43C was found in VP-16 for MKN45 and KATO-III and in all of 5 drugs for AMC1. In colon cancer cell lines, this effect at 43C was found in all of 5 drugs for CCL188, in S-FU, CDDP, ADM for AMC5, in 5-FU, MMC, ADM, VP-16 for CloneA, KM-12C, and in 5-FU, CDDP, MMC, ADM for C106. CONCLUSION: Hyperthermia itself had antitumor effect at 43C. Hyperthermo-chemotherapy had antitumor synergistic effect, especially at 43C.
Cell Line*
;
Colonic Neoplasms
;
Etoposide
;
Fever*
;
Fluorouracil
;
Gastrointestinal Neoplasms*
;
Stomach Neoplasms
8.Use of Nonhuman Primates for the Development of Bioengineered Female Reproductive Organs.
Jun Won YUN ; Yoon Young KIM ; Jae Hun AHN ; Byeong Cheol KANG ; Seung Yup KU
Tissue Engineering and Regenerative Medicine 2016;13(4):323-334
Nonhuman primates (NHPs) have been widely used in reproductive biology, neuroscience, and drug development since a number of primate species are phylogenetically close to humans. In this review, we summarize the use of NHPs for nonclinical application in the reproductive system disorders including the loss or failure of an organ or tissue. Causes of infertility include congenital aplasia and acquired disorders of the reproductive organs. In addition, anti-cancer treatments can deplete ovarian follicles, leading to premature ovarian failure, infertility and long-term health risks. Along with a limited supply of human reproductive organs, anatomic/physiologic similarities to humans support the need for NHP models (New-World monkeys such as the common marmoset and Old-World monkeys such as cynomolgus and rhesus monkeys) to promote the advances in female infertility studies. For maintaining and executing animal studies using NHP, special protocols including animal care, anesthetic protocol, surgical technique, and immunosuppressive protocol are necessary. With a growing interest in the potential therapies such as endometrial tissue engineering, and ovary/follicle cryopreservation and grafting in Korea, this review can be useful in selecting appropriate animal models and can bridge between nonclinical studies and clinical applications by providing detailed information on the use of NHPs in the field of reproductive organ disorders.
Animals
;
Biology
;
Callithrix
;
Cryopreservation
;
Female*
;
Haplorhini
;
Humans
;
Infertility
;
Infertility, Female
;
Korea
;
Models, Animal
;
Neurosciences
;
Ovarian Follicle
;
Primary Ovarian Insufficiency
;
Primates*
;
Tissue Engineering
;
Transplantation
;
Transplants
9.Forced Eruption of Severe Angulated and Impacted Permanent Teeth after Marsupialization of Dentigerous Cyst: Case Report
Jeong Hun NAM ; Kyung Lok NOH ; Woo Geun YOO ; Byeong Min LEE ; Ji Hyeon JEON ; Su Hyun PARK ; Jang Hoon AHN ; Jung Hee KIM
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2011;33(1):83-88
Bicuspid
;
Child
;
Dentigerous Cyst
;
Female
;
Humans
;
Mouth
;
Orthodontic Extrusion
;
Tooth
;
Tooth, Deciduous
;
Tooth, Impacted
10.Post-resection prognosis of patients with hepatic epithelioid hemangioendothelioma
Byeong-Gon NA ; Shin HWANG ; Chul-Soo AHN ; Ki-Hun KIM ; Deok-Bog MOON ; Tae-Yong HA ; Gi-Won SONG ; Dong-Hwan JUNG ; Seung-Mo HONG ; Sung-Gyu LEE
Annals of Surgical Treatment and Research 2021;100(3):137-143
Purpose:
Epithelioid hemangioendothelioma (EHE) is a rare borderline vascular tumor. This retrospective, single-center study evaluated the outcomes of hepatic resection (HR) in patients with hepatic EHE.
Methods:
Over the 10-year period from 2009 to 2018, 11 patients with hepatic EHE underwent HR, accounting for 0.1% of the 11,979 adults who underwent HR at our center. Diagnosis of hepatic EHE was confirmed by immunohistochemical staining for CD34, CD31, and factor VIII-related antigen.
Results:
The 11 patients included 9 females (81.8%) and 2 males (18.2%) with mean age of 43.5 ± 13.6 years. Preoperative imaging resulted in a preliminary diagnosis of suspected liver metastasis or EHE, with 9 patients (81.8%) undergoing liver biopsy. No patient presented with abnormally elevated concentrations of liver tumor markers. The extents of HR were determined by tumor size and location from trisectionectomy to partial hepatectomy. All patients recovered uneventfully from HR. Five patients showed tumor recurrence, with 4 receiving locoregional treatments for recurrent lesions. The 1-, 3-and 5-year disease-free survival rates were 90.9%, 54.5%, and 54.5%, respectively. Currently, all patients remain alive and are doing well. Univariate analysis on tumor recurrence showed that tumor size ≥ 4 cm was significantly associated with tumor recurrence (P = 0.032), but tumor number ≥ 4 was not related to (P = 0.24).
Conclusion
Hepatic EHE is a rare form of primary liver tumor often misdiagnosed as a metastatic tumor. Because of its malignant potential, HR is indicated if possible. HR plus, when necessary, treatment of recurrence yields favorable overall survival rates in patients with hepatic EHE.