1.Subtypes of Intestinal Metaplasia in Chronic Gastritis.
Kyu Chan HUH ; Soo Ho SON ; Jung Wook HUR
Korean Journal of Gastrointestinal Endoscopy 2000;21(2):593-601
BACKGROUND/AIMS: Gastric carcinoma is the most common malignant neoplasm in Korea and is known to be associated with intestinal metaplasia (IM) of gastric epithelium, of which type III IM is suggested to play a special role in the carcinogenesis. This study is to evaluate the subtypes of IM and to measure each subtype in chronic gastritis. Methods: From October 1997 to September 1999, 321 patients with endoscopic chronic gastritis were evaluated the grade of chronic gastritis and IM by histologic and histochemical stain. RESULTS: Chronic inflammation and IM were remarkably severe in men and Helicobacter pylori (H. pylori) positivity was 69.4% in men and 65.2% in women. The frequency of IM was 50.1%, of which 65.4% was in men and 34.6% in women. The frequency of IM subtypes was 43.2%, 11.7% and 45.1% for type I, II and III respectively. Sixty percent of IM was noted in more than 50 years of age and ninety percent in more than 40 years of age. The frequency of type III IM was 61.6% in men and 38.4% in women. Sixty one percent of type III IM was noted in more than 50 years of age and ninety percent in more than 40 years of age. Interestingly, fifty three percent of type III IM was noted in men more than 40 years of age. The prevalence of H. pylori infection in type III IM was similar to in type I and II. The glandular atrophy in type III IM was remarkably severe than that in type I and II. Conclusions: The results of this study show that the proportion of type III IM in chronic gastiritis is remarkably high in Korean and age and sex distribution is similar to that of gastric carcinoma.
Atrophy
;
Carcinogenesis
;
Epithelium
;
Female
;
Gastritis*
;
Helicobacter pylori
;
Humans
;
Inflammation
;
Korea
;
Male
;
Metaplasia*
;
Prevalence
;
Sex Distribution
2.Sex Differences in Lifestyle Factors of Metabolic Syndrome in Korean Adults.
Jun Seok SON ; Byung Mann CHO ; Young Wook KIM ; Chang Ho CHAE ; Chan Woo KIM ; Ja Hyeon KIM
Korean Journal of Health Promotion 2012;12(1):13-21
BACKGROUND: Metabolic syndrome is a major risk factor for cardiovascular disease. The combination of an aging population with a chronic diseased population is leading to an increase in the mortality rate due to cardiovascular diseases. The purpose of this study was to assess the prevalence of metabolic syndrome in the Korean population and to evaluate its related factors for sex differences. METHODS: From April 2007 to December 2008, a total of 2,729 volunteers aged 40-69 years living in Changwon city underwent a clinical examination at a hospital in Changwon, Korea. Metabolic syndrome was diagnosed following the criteria defined in Circulation 2009. The clinical examination included measuring anthropometric variables and cardiovascular risk factors, while lifestyle factors were assessed through a questionnaire. RESULTS: The prevalence of metabolic syndrome in our sampling pool was 25.2% with a break down by sex showing a rate of 30.2% in men and 22.2% in women. Related factors associated with metabolic syndrome common to both sex were age, self-health assessment, and alcohol consumption. Sleep duration seemed to be a related factor in men, while income, education, and menstruation status played significant roles in women. CONCLUSIONS: To better manage metabolic syndrome, men need to be educated on alcohol use and women of low socioeconomic status require particular attention as do the aging population and postmenopausal women.
Adult
;
Aged
;
Aging
;
Alcohol Drinking
;
Cardiovascular Diseases
;
Female
;
Humans
;
Korea
;
Life Style
;
Male
;
Menstruation
;
Prevalence
;
Risk Factors
;
Sex Characteristics
;
Social Class
3.Results of Transfer of Cryopreserved Supernumerary Embryos Obtained after Conventional in vitro Fertilization and Intracytoplasmic Sperm Injection (ICSI).
Jeong Wook KIM ; Mi Hyun HAN ; Hye Kyung BYUN ; Jin Hyun JUN ; Il Pyo SON ; Mi Kyoung KOONG ; Eun Chan PAIK ; Inn Soo KANG ; Ho Joon LEE
Korean Journal of Fertility and Sterility 1997;24(1):111-118
Intracytoplasmic sperm injection (ICSI) recently has been utilized widely as the most successful technique to overcome the unfertilization problem in cases of severe male infertility in couples who could not be treated by conventional IVF. Recently, indications of ICSI have been extended further and more fertilized oocytes become available. Thus, it is necessary to examine the efficiency of freezing the surplus embryos obtained from ICSI. We compared the survival rate and the future outcome of cryopreserved embryos obtained either after conventional IVF or ICSI during the same period. After ICSI or IVF, five best-quality embryos from each patient were transferred in the stimulation cycle and the surplus pronuclear (PN) stage oocytes or multicellular embryos were cryopreserved by slow freezing protocol with 1,2-propanediol (PROH) as a cryoprotectant.4 total of 792 embryos from ICSI trial were thawed and 65.2% (516/792) survived. The survival rates of PN stage oocyte, multicellular embryo and PN + multicellular embryo were 63.5%, 68.2%, 64.0%, respectively. After 111 transfers, 34 pregnancies were achieved, corresponding to a clinical pregnancy rate of 30.6% per transfers. We thawed 1033 embryos from IVF trials and 57.5% (594/1033) survived. In IVF cycle, the survival rates of PN stage oocyte, multicellular embryo and PN + multicellular embryo were 58.2%, 65.2%, 40.2%, respectively. Thirty eight clinical pregnancies were established after 134 transfers, corresponding to a pregnancy rate of 28.4% per transfer The cleavage rate of thawed PN stage oocytes from ICSI trial (61.3%) was significantly higher than those from conventional IVF (53.4%). The developmental rates of good embryo (> or = grade II) in thawed PN stage oocytes obtained from conventional IVF and ICSI were 63% and 65%, respectively. We concluded that PN stage oocytes, multicellular embryos resulting from ICSI procedure can be successfully frozen/thawed with reasonable clinical pregnancy rates comparable to those of IVF.
Embryonic Structures*
;
Family Characteristics
;
Fertilization in Vitro*
;
Freezing
;
Humans
;
Infertility, Male
;
Male
;
Oocytes
;
Pregnancy
;
Pregnancy Rate
;
Propylene Glycol
;
Sperm Injections, Intracytoplasmic*
;
Survival Rate
4.Pseudocoarctation of the Aorta Associated with the Anomalous Origin of the Left Vertebral Artery: a Case Report.
Jae Sung SON ; Ki Bae HONG ; Chan Wook David CHUNG
Korean Journal of Radiology 2008;9(3):283-285
Pseudocoarctation of the aorta is a rare congenital anomaly of the aortic arch, and it has been described as an elongation of the aortic arch with "kinking" at the level of the ligamentum arteriosum without a pressure gradient across the lesion. The treatment for this condition is controversial. We report here on an unusual case of pseudocoarctation of the aorta associated with the anomalous origin of the left vertebral artery and we include a review of the medical literature.
Aortic Coarctation/*complications
;
Child
;
Humans
;
Male
;
Vertebral Artery/*abnormalities
5.Clinical Evaluation of Extracapsular Cataract Extraction and Phacoemalsification.
An Na SON ; Yoon Won MYUNG ; Sang Moon CHUNG ; Chan PARK ; Nam Ho BAEK ; Sang Wook RHEE
Journal of the Korean Ophthalmological Society 1988;29(6):1015-1021
This study covers comparison and examination of the clinical results of visual acuity recovery, astigmatic change and comparison of patients who underwented extracapsular cataract extraction(ECCE) with insertion of posterior chamber lens(PCL) or phacoemulsification(PE) with insertion of posterior chamber lens. Among 1446 patients who underwented ECCE with PCL or PE with PCL from April. 1983 to December, 1987. 623 patients being followed up their conditions during 6 months were selected. Visual acuity, astigmatism and keratometry were followed up at preoperative and postoperative period of 1 week, 1 month, 2 months, and 6 months. The results were as follows. 1. In PE with PCL, the recovery of visual acuity is earlier than in ECCE with PCL. 2. In PE with PCL, the post operative change of astigmatic axis to the against the rule is more rapid than in ECCE with PCL. 3. In PE with PCL, recovery of astigmatism is earlier than in ECCE with PCL and the amount of astigmatism is lower than in ECCE with PCL.
Astigmatism
;
Axis, Cervical Vertebra
;
Cataract Extraction*
;
Cataract*
;
Humans
;
Phacoemulsification
;
Postoperative Period
;
Visual Acuity
6.A Study of the Survival Rate of Childhood Cancer in Korea.
Mi Hwa YANG ; Song Hyeun EUN ; Chan Sook PARK ; Jin A SON ; Jae Yun KIM ; Jae Wook KO ; Don Hee AHN
Cancer Research and Treatment 2001;33(3):191-198
PURPOSE: It is known that the prognosis of childhood cancer is relatively good, however actual representative nationwide data on childhood cancer, particularly of survival rate, are rare. In this study we attempted to establish the overall survival rate of major childhood cancer. MATERIALS AND METHODS: The primary source of data of childhood cancer under 15 years of age were the registry files of the Central Cancer Registry Report (Ministry of Health & Welfare) from 1993 to 1997. The above data was compared to death case data files of the same period obtained from the Korea National Statistical Office using the personal identification code. We calculated the 1, 3, and 5 year survival rates using the life table of SPSS and Kaplan-Meier method and compared the survival rate of disease according to prognostic factors. RESULTS: A total of 6,720 cases of pediatric cancer from the Central Cancer Registry files were computerized and sorted by personal identification (ID) code to extract duplicated cases as well as cases with incomplete data. The final number of cases entered in this study was 4,983. 1) The number of confirmed death cases was 1,448 (29.1%). 2) The disease distribution showed that the most common pediatric cancer was leukemia (1,468/4,983, 29%), followed by brain tumors (503/4,983, 10%), lymphoma (315/4,983, 6%), Wilms tumor (165/4,983, 3%), etc. in order by number of patients. 3) The 5 year survival rate of disease was as follows: overall 62%, acute lymphocytic leukemia 61%, acute non-lymphocytic leukemia 32%, malignant lymphoma 72%, neuroblastoma 47%, medulloblastoma 51%, Astrocytoma 66%, Wilms tumor 83%, etc. CONCLUSION: We analyzed and report the 5 year survival rate of overall childhood cancer and of each of the twelve major childhood cancers from in Korea 1993 to 1997 to provide basic data on childhood cancer statistics.
Astrocytoma
;
Information Storage and Retrieval
;
Brain Neoplasms
;
Humans
;
Korea*
;
Leukemia
;
Life Tables
;
Lymphoma
;
Medulloblastoma
;
Neuroblastoma
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma
;
Prognosis
;
Survival Rate*
;
Wilms Tumor
7.Postnatal Changes in Left Ventricular Performance in Early Neonatal Life.
Sung Wook YANG ; Chan Wook WOO ; Jee Youn LIM ; Jung Hwa LEE ; Joo Won LEE ; Chang Sung SON ; Young Chang TOCKGO ; Young YOO
Journal of the Korean Pediatric Society 2000;43(9):1168-1173
PURPOSE: This study was undertaken to investigate changes in cardiac performance in early neo-natal life by observing the changes of left ventricular(LV) function and volume according to the size of ductus arteriosus. METHODS: The study group consisted of 21 full-term Cesarean section neonates who were admitted to the nursery of Korea University Hospital. We serially investigated the patency and size of the ductus at 2, 24, 120 hours after birth by two-dimensional echocardiography. The standard two-dimensional tracings of LV volume were obtained under the guidance of apical two- and four-chamber views. LV end-diastolic and end-systolic volumes were calculated using a biplanar Simpson's method. RESULTS: LV end-diastolic volume was highest(3.44>0.4mm) at 2 hours of age(P<0.01), being constant from 24 to 120 hours. LV contractility, indicated by the mean normalized systolic ejection rate, remained constant during the whole period of investigation. The size of the ductus arteriosus was maximal at 2 hours after birth, and decreased significantly at 24 hours of age (P<0.01). The size of ductus arteriosus demonstrated a close linear correlation with the left ventricular end-diastolic volume(y=0.17x+2.92, r=0.59: P<0.01). CONCLUSION: Changes in LV end-diastolic volume soon after birth depend on changes in ductus arteriosus flow, which in turn is affected by ductal diameter. Upon patency of the ductus arteriosus, the newborn left ventricle operates at maximal performance with only a limited capacity to increase contractility.
Cesarean Section
;
Ductus Arteriosus
;
Ductus Arteriosus, Patent
;
Echocardiography
;
Female
;
Heart Ventricles
;
Humans
;
Infant, Newborn
;
Korea
;
Nurseries
;
Parturition
;
Pregnancy
;
Ventricular Function, Left
8.Activation of Caspase-3 in Hydrogen Peroxide-Induced Apoptosis of Human Leukemia HL 60 Cells.
SeongHoi JEON ; Chan Wook WOO ; JungHwa LEE ; JeongWon SOHN ; Kwang Chul LEE ; ChangSung SON ; JooWon LEE
Korean Journal of Pediatric Hematology-Oncology 2004;11(2):228-235
PURPOSE: Reactive oxygen species have been recognized as a common signaling mediator in diverse stimuli-induced apoptosis and hydrogen peroxide is a natural one of those reactive oxygen species. This study was performed to investigate the role of caspases in hydrogen peroxide-induced apoptosis of HL 60 cells. METHODS: Apoptosis was induced in HL 60 cells by treating 50microM hydrogen peroxide for 2, 4, and 6 hrs and induction of apoptosis was confirmed by flow cytometry and DNA fragmentation analysis. Caspase substrate assay was used to show the activity of caspases and then protein levels of caspase and its substrate were analyzed using immunoblotting. RESULTS: During the apoptosis, caspase substrates assay showed the increased activity of caspase-3, -7, -10, but not that of caspase-8 nor caspase-9, and immunoblotting analysis showed decreasing procaspase-3 protein with the progression of apoptosis. Furthermore, with progression of apoptosis, analysis of caspase substrates showed retinoblastoma protein decreased while cleaved 89kD fragment of poly (ADP-ribosyl) polymerase protein increased. CONCLUSION: These results suggest that hydrogen peroxide-induced apoptosis in HL 60 cells is not associated with the activation of caspase-8 nor caspase-9. Rather, caspase-3 is directly activated and responsible for hydrogen peroxide-induced apoptosis of HL 60 cells.
Apoptosis*
;
Caspase 3*
;
Caspase 8
;
Caspase 9
;
Caspases
;
DNA Fragmentation
;
Flow Cytometry
;
HL-60 Cells*
;
Humans*
;
Hydrogen Peroxide
;
Hydrogen*
;
Immunoblotting
;
Leukemia*
;
Reactive Oxygen Species
;
Retinoblastoma Protein
9.Comparison of Emergence Agitation from Sevoflurane Anesthesia after Thiopental Sodium, Propofol or Ketamine Induction in Pediatric Inguinal Herniorrhaphy.
Wook Jong KIM ; Hyun Jue GILL ; Yong Chan KIM ; Jong Youn LEE ; Kum Hee CHUNG ; Sang Woo LEE ; Suk Woo SON ; Yong Sup SHIN
Korean Journal of Anesthesiology 2006;50(6):616-622
BACKGROUND: This study compared the incidence of emergence agitation and the recovery profile from sevoflurane anesthesia after thiopental sodium, propofol or ketamine induction in pediatric inguinal herniorrhaphy. METHODS: Forty eight children aged 1-7 years undergoing high ligation due to an inguinal hernia were examined. All patients received a 0.004 mg/kg glycopyrrolate injection for premedication prior to induction and were randomly assigned to receive thiopental sodium 5 mg/kg (Group T, n = 16), propofol 2 mg/kg (Group P, n = 16) or ketamine 1 mg/kg (Group K, n = 16) for induction. The side effects during the induction time were checked. All patients received sevoflurane (2-2.5 vol%)-N2O (2 L/min)-O2 (2 L/min) for the maintenance of anesthesia. Ventilation was given to assist spontaneous ventilation using a facial mask. The agitation score, pain score, discharge score, incidence of emergence agitation and postoperative side effects in the three groups were assessed at the recovery room and compared. RESULTS: The emergence time in Group T (7.5 +/- 1.8 min) was significantly rapid. The agitation and pain scores were significantly low in Group P. The discharge score was more rapid in Groups P and K than in Group T. The incidence of emergence agitation was similar in all three groups. CONCLUSIONS: Although recovery was faster and emergence agitation was low in the propofol group, propofol induction was not smooth compared with thiopental or ketamine induction. The incidence of emergence agitation after sevoflurane anesthesia in pediatric inguinal herniorrhaphy was similar in the thiopental sodium, propofol or ketamine induction groups.
Anesthesia*
;
Anesthetics, Intravenous
;
Child
;
Dihydroergotamine*
;
Glycopyrrolate
;
Hernia, Inguinal
;
Herniorrhaphy*
;
Humans
;
Incidence
;
Ketamine*
;
Ligation
;
Masks
;
Premedication
;
Propofol*
;
Recovery Room
;
Thiopental*
;
Ventilation
10.Red beet (Beta vulgaris L.) leaf supplementation improves antioxidant status in C57BL/6J mice fed high fat high cholesterol diet.
Jeung Hee LEE ; Chan Wook SON ; Mi Yeon KIM ; Min Hee KIM ; Hye Ran KIM ; Eun Shil KWAK ; Sena KIM ; Mee Ree KIM
Nutrition Research and Practice 2009;3(2):114-121
The effect of diet supplemented with red beet (Beta vulgaris L.) leaf on antioxidant status of plasma and tissue was investigated in C57BL/6J mice. The mice were randomly divided into two groups after one-week acclimation, and fed a high fat (20%) and high cholesterol (1%) diet without (control group) or with 8% freeze-dried red beet leaf (RBL group) for 4 weeks. In RBL mice, lipid peroxidation determined as 2-thiobarbituric acid-reactive substances (TBARS value) was significantly reduced in the plasma and selected organs (liver, heart, and kidney). Levels of antioxidants (glutathione and beta-carotene) and the activities of antioxidant enzyme (glutathione peroxidase) in plasma and liver were considerably increased, suggesting that antioxidant defenses were improved by RBL diet. Comet parameters such as tail DNA (%), tail extent moment, olive tail moment and tail length were significantly reduced by 25.1%, 49.4%, 35.4%, and 23.7%, respectively, in plasma lymphocyte DNA of RBL mice compared with control mice, and indicated the increased resistance of lymphocyte DNA to oxidative damage. In addition, the RBL diet controlled body weight together with a significant reduction of fat pad (retroperitoneal, epididymal, inguinal fat, and total fat). Therefore, the present study suggested that the supplementation of 8% red beet leaf in high fat high cholesterol diet could prevent lipid peroxidation and improve antioxidant defense system in the plasma and tissue of C57BL/6J mice.
Acclimatization
;
Adipose Tissue
;
Animals
;
Antioxidants
;
Beta vulgaris
;
Body Weight
;
Cholesterol
;
Diet
;
DNA
;
Heart
;
Lipid Peroxidation
;
Liver
;
Lymphocytes
;
Mice
;
Olea
;
Plasma