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Original Article
Teratogenic Effect of Dopamine on the Embryonic Chick Heart
Bon-Seok Koo, Nam Su Kim, Yong Joo Kim, Sung Yup Moon, Hang Lee
Clin Exp Pediatr. 2000;43(7):913-919.   Published online July 15, 2000
Purpose : To investigate the teratogenic potential of dopamine using a topical method of application to the developing Korean native chick embryo. Methods : A 5μg(0.05cc) of dopamine was applied to a 3-days-old chick embryo and the same amount of saline solution was applied as control. The embryo was then returned to the incubator and monitored. After 3 weeks the embryo was sacrificed and...
Identification of a Calcium-activated Potassium Channel Gene Expressed in Rat Cardiac Myocytes
In Seung Park, Hyun-Kyu Jeon, Nam Su Kim, Youn Mo Ahn, Chul-Seung Park, Ha Baik
Clin Exp Pediatr. 2000;43(7):905-912.   Published online July 15, 2000
Purpose : Calcium-activated potassium channels(KCa) may be involved in the transient outward current of the first phase of cardiac action potential. But it is still not clear whether cardiac myocytes express any KCa. We try to identify here the types of KCa expressed in rat caridac myocytes. Methods : We isolated total heart RNA from 50 rats(Spague-Dawley) and performed reverse transcription-polymerase chain reaction(RT-PCR) using specifically...
Usefulness of Plasma Atrial Natriuretic Peptide Concentration in the Diagnosis of Patent Ductus Arteriosus in Preterm Infants
Byung Min Choi, Jae Kyun Yoon, Hyun Hee Lee, Hae Won Cheon, Kee Hwan Yoo, Young Sook Hong, Joo Won Lee, Soon Kyum Kim
Clin Exp Pediatr. 2000;43(7):897-904.   Published online July 15, 2000
Purpose : Diagnosis of a hemodynamically significant patent ductus arteriosus(PDA) that should be treated is difficult to determine by clinical and echocardiographic examinations. The aim of this study was to clarify the interrelationship of plasma atrial natriuretic peptide(ANP) concentrations and clinical signs or echocardiographic signs of PDA in preterm infants and use plasma ANP concentrations as a diagnostic indicator of a hemodynamically significant PDA. Methods...
A Study on the Field and Future Course of Child Care Counselling Using Personal Computer Communication
Young Sook Chae, Young Taek Jang
Clin Exp Pediatr. 2000;43(7):889-896.   Published online July 15, 2000
Purpose : Nowadays, concern about the care of one' s offspring has been increasing due to increased active participation of women in society and having fewer children than in the past. Therefore, we performed a study to evaluate the major fields of child care counselling and establish effective child care counselling. Methods : We retrospectively analyzed 2,754 cases of child care counselling about sex...
Nationwide Survey on Current Status of Formula Feeding in Infants
Yon Ho Choe, Kyeong Rae Moon, Jeong Wan Seo, Jae Geon Sim, Kee Whan Yoo, Byeung Ju Jeong, Young Mi Hong
Clin Exp Pediatr. 2000;43(7):878-888.   Published online July 15, 2000
Purpose : Although breast milk is considered the best source of nutrition for infants because of its superiority over powdered milk, there are circumstances when breast milk is unavailable. Committee on Nutrition of the Korean Pediatric Society conducted an investigation into the current status of formula feeding in Korea. Methods : This investigation was conducted using questionnaires produced by our committee and distributed to mothers...
Hemorrhagic Shock and Encephalopathy Syndrome as a Cause of Sudden Death in Infants
Jong Won Lee, Chang Han Lee, Ki Sup Chung
Clin Exp Pediatr. 2000;43(6):814-819.   Published online June 15, 2000
Purpose : To evaluate the clinical characteristics, treatments and outcome of patients with hemorrhagic shock and encephalopathy(HSE) syndrome. Methods : We performed a clinical study on 14 patients who were diagnosed as hemorrhagic shock and having encephalopathy syndrome in the Department of Pediatrics, from 1984 to 1998. Age, sex, clinical symptoms and physical findings at admission, the most deranged laboratory findings,...
Clinical Manifestation of Childhood Acute Leukemia with Bone Involvement
Kyoung Eun Jeong, Hee Jung Lee, Kwang Soon Song, Heung Sik Kim, Chin Moo Kang
Clin Exp Pediatr. 2000;43(6):806-813.   Published online June 15, 2000
Purpose : Bone involvement is known to develop in 40-70% of pediatric acute leukemia. We aimed to analyze the clinical course and result of therapy in pediatric acute leukemia with bone involvement. Methods : Twenty-seven patients diagnosed as pediatric acute leukemia at Dong San Medical Center from Jan. 1996 to Aug. 1998 were evaluated. According to bone X-ray and whole body...
Correlation between the Grade of Brain MRI and Clinical Features of Periventricular Leukomalacia
Ju Eun Lee, Su Eun Park, Sang Ook Nam, Hak Jin Kim
Clin Exp Pediatr. 2000;43(6):798-805.   Published online June 15, 2000
Purpose : Periventricular leukomalacia(PVL) is associated with various neurologic sequelae such as cerebral palsy and cortical blindness. The aim of this study was to analyse the correlation between the degree of PVL on MRI and clinical features or its severity. Methods : Thirty-eight children with PVL on MRI among children brought to Pusan National University Hospital between January 1996 and August...
The Effect of Single Dose Imipramine on Nocturnal Urine Output in Patients with Nocturnal Enuresis
Won Jung Kim, Min Jung Kim, Byeong Hee Son, Sung Won Kim
Clin Exp Pediatr. 2000;43(6):792-797.   Published online June 15, 2000
Purpose : The aim of the present study was to investigate the effect of single dose imipramine on nocturnal urine output in patients with nocturnal enuresis. Methods : A total of 6 monosymptomatic enuretic patients of more than 5 years of age were enrolled in this study. We measured nocturnal urine output, urine osmolality, creatinine clearance, osmolal clearance, excretion rate of...
Mutations in Hepatitis B Virus Precore and Core Promotor in Children with Chronic Hepatitis B Infection - Comparison Between Vertical and Non-vertical Transmission -
Jin Kuk Kim, Yeong Hong Park, Woo Yeong Chung, Chul Ho Kim
Clin Exp Pediatr. 2000;43(6):779-791.   Published online June 15, 2000
Purpose : The aims of this study were to investigate the frequencies and role of hepatitis B virus(HBV) precore and core promotor mutations in children with chronic hepatitis B infection. Methods : Sera from 46 children with chronic hepatitis B infection were analyzed by direct sequencing of polymerase chain reaction product of HBV DNA. In this study, the patients were divided...
Changes of Endothelin-1 after Pulmonary Venous Stenosis in Dog Model
Young Mi Hong, Yong Soon Won, Seung Suk Kim
Clin Exp Pediatr. 2000;43(6):769-778.   Published online June 15, 2000
Purpose : Endothelin-1(ET-1) is a potent vasoconstrictor peptide. It has potent contractile and proliferative effects on vascular smooth muscle cells. Congenital heart diseases are often accompanied by pulmonary hypertension, and the severity of pulmonary hypertension is important in the prognosis. The aim of this study was to elucidate changes of ET-1 after pulmonary venous stenosis in a dog model, and...
Infantile Hypertrophic Pyloric Stenosis Treated with Intravenous Atropine Sulfate
Jae Woo Lim, Hee Sook Son, Kye Shik Shim, Kyu Chul Choeh, Tae Il Han
Clin Exp Pediatr. 2000;43(6):763-768.   Published online June 15, 2000
Purpose : The pharmacologic effect of atropine on HPS can be considered to control pyloric muscle spasm. Therefore, we studied the effects of intravenous atropine sulfate on the clinical course of HPS, and periodically observed the ultrasonographic appearance of the pyloric muscles after atropine treatment. Methods : From April 1998 to May 1999, 14 infants who were diagnosed with HPS were...
Red Blood Cell Indices, Serum Iron and Total Iron Binding Capacity in Children with Helicobacter pylori Infection
Soo Joon Park, Chang Han Lee, Ki Sup Chung
Clin Exp Pediatr. 2000;43(6):755-762.   Published online June 15, 2000
Purpose : H. pylori infection was recently reported to be associated with unexplained iron-deficiency anemia(IDA) in children and adolescents. H. pylori-related IDA was thought to occur due to GI blood loss, scavenging of iron by H. pylori and iron malabsorption. The aim of this study was to examine how the status of H. pylori infection and age of children affected...
Protective Effect of Probucol against Adriamycin-Induced Apoptosis in Cultured Rat Cardiac Myocytes
Sun-Ju Lee, Dong-Seok Lee, Yong-Wook Jung
Clin Exp Pediatr. 2000;43(6):746-754.   Published online June 15, 2000
Purpose : In adriamycin(ADR)-induced cardiomyopathy, several different mechanisms are suggested. However, little information is available regarding the role of apoptosis. In the present study, we examined the induction of apoptosis on ADR treatment and anti-apoptotic effects of probucol, a lipid-lowering drug, and we also studied the changes of bcl-2 expression in order to see the molecular mechanisms underlying the effect...
A Prospective Epidemiological Study on Birth Defects : A Community Based Pilot Study
Hyon Ju Kim, Yeon Kyeoung Kim, Dae Kyun Koh, Jong Hyun Kim, Bo Won Choi
Clin Exp Pediatr. 2000;43(6):738-745.   Published online June 15, 2000
Purpose : This prospective pilot study is a part of the Korean NIH’s effort to characterize congenital anomalies and genetic disorders in Korea and to establish a National Genetic Database. Methods : This population-based study was conducted at all hospitals that deliver in the province of Suwon; a total of 39 hospitals from May 1, 1997 to April 30, 1999 for...
Characteristics of Childhood Asthma According to the Onset of Wheezing
Yoon Jeong Kim, Bong Seong Kim, Soo-Jong Hong
Clin Exp Pediatr. 2000;43(5):686-693.   Published online May 15, 2000
Purpose : To understand the characteristics of early childhood asthma, we evaluated and compared the characteristics between early persistent wheezers and late wheezers. Methods : From January, 1998 to December, 1998, 106 children aged six to seven years were divided into three groups according to the onset of wheezing : Early persistent wheezers(n=36) who had wheezing both before three years of...
Apolipoprotein E Polymorphism and Plasma Lipid Levels in Obese Children
Myoung Hee Han, Sun Jun Kim
Clin Exp Pediatr. 2000;43(5):679-685.   Published online May 15, 2000
Purpose : The increased prevalence of dyslipoproteinemia in obese children probably contributes to the high risk of cardiovascular disease associated with being overweight. The genetic makeup is possible one of the factors that influence the impact of obesity on lipid metabolism. A relation between apolipoprotein E(Apo E) polymorphism and lipid metabolism has been convincingly demonstrated in large population. The purpose...
Change of Peripheral Blood CD5＋ B Lymphocytes in Early Neonatal Period
Ye Ho Lee, Bin Cho, Department of Pediatrics, College of Medicine, Cat , Kyung Tai Whang
Clin Exp Pediatr. 2000;43(5):674-678.   Published online May 15, 2000
Purpose : This study was aimed to investigate age-related changes of CD5＋ B lymphocytes in healthy Korean neonates. Methods : Sixty healthy neonatal infants were enrolled in this study; at birth(n=10), day 1(n=10), day 2(n=10), day 3(n=10), day 4(n=10) and day 5(n=10). Phenotypic analysis of CD5＋ B lymphocytes was performed on blood samples using standard flow-cytometric techniques. Results : The percentage of...
Clinical and Pathologic Features of Nodular Duodenitis in Children
Heon Sang Kim, Jin Hoon Chun, Yong Joo Kim, Se Jin Chang, Eun Kyung Hong
Clin Exp Pediatr. 2000;43(5):667-673.   Published online May 15, 2000
Purpose : Nodular duodenitis is defined as two or more erythematous nodules in the duodenum, with surrounding inflammation and with or without apical erosions. But the clinical features and natural history of nodular duodenitis remain largely undefined, therefore we examined clinical, endoscopic and pathologic features of nodular duodenitis in children to find about its natural history, relationship between endoscopic and...
Outcome of Cardiac Complication in Patients of Kawasaki Disease Treated with High-dose Gammaglobulin
Hyang-Sook Kim, Jong-Tae Kim, Ji-Yon Lee, Jo-Won Jung, Ki-Soo Pai
Clin Exp Pediatr. 2000;43(5):658-666.   Published online May 15, 2000
Purpose : We performed the study to evaluate the risk factors associated with cardiac complication and the outcome of coronary lesions after high-dose(2g/kg, 1dose) gammaglobulin(IVIG) treatment in patients with Kawasaki disease(KD). Methods : Retrospective studies were performed on 338 cases of KD treated with high-dose IVIG at this hospital from May 1994 to March 1999. Results : Among 338 patients,...
Effects of Umbilical Arterial Catheterization on Intestinal Hemodynamics
Sejung Sohn, Su Jung Choi, Jung An Yang, Eun Ae Park
Clin Exp Pediatr. 2000;43(5):650-657.   Published online May 15, 2000
Purpose : An umbilical arterial catheter(UAC) in the high position reduces the lumen of the aorta and may thereby impair blood supply to the intestine. Effects of UAC on intestinal blood flow were investigated. Methods : With the measurement of the aortic diameter, pulsed Doppler ultrasonography was performed in 23 fasting newborns to measure blood flow velocities(peak systolic velocity, end-diastolic velocity,...
Typing of Epstein-Barr Virus in Healthy Korean Children and Adults
Jin Han Kang, Jae Kyun Hur, Joeng Hyun Kim, Ahn Hee Lee
Clin Exp Pediatr. 2000;43(5):644-649.   Published online May 15, 2000
Purpose : Recently, the list of Epsterin-Barr Virus(EBV)-associated diseases has been growing. It is now known that there are two types(type 1 & 2) of EBV, but it has yet to be fully investigated as to whether type B EBV differs in any way from type A virus in terms of geographical distribution or disease association. We performed this study...
Comparative Reactivity of 2 TU and 5 TU PPD Skin Tests
Dae Sun Jo, Kyeong Mee Lee, Dae-Yeol Lee, Jung Soo Kim
Clin Exp Pediatr. 2000;43(5):638-643.   Published online May 15, 2000
Purpose : These days 5 TU purified protein derivative(PPD) is substituted with 2 TU PPD for the tuberculin skin test, a test essential in the diagnosis of tuberculosis in pediatric population. However, there had been no adequate criteria for the positivity of 2 TU PPD skin test. This study was performed to clarify the criteria of positive reactivity of 2...
Isolation of Causative Microorganism and Antimicrobial Susceptibility Test in Impetigo Developed in the Past Four Years
Hyun Jeong Lee, Sang Jung Lee, Seog Jun Ha, Chang Kyu Oh, Jin Wou Kim
Clin Exp Pediatr. 2000;43(5):632-637.   Published online May 15, 2000
Purpose : Recently, Staphylococcus aureus has been reported as the principal microorganism isolated from impetigo, showing variable degrees of antimicrobial resistance. The aim of this work was to study the causative organism of impetigo the their antimicrobial susceptibility developed in impetigo in the past four years. Methods : We performed bacterial cultures and antimicrobial susceptibility tests in 73 patients with impetigo...
The Relation between Antibiotic Use and Changes of Antimicrobial Resistance of Gram Negative Bacilli Isolated in Chonbuk National University Hospital(1993-1997)
Min Ki Chang, Jung Min Chu, Hae Soo Lee, Jung Soo Kim
Clin Exp Pediatr. 2000;43(5):625-631.   Published online May 15, 2000
Purpose : Antimicrobial resistance has become a major medical and public health problem. This study was performed to evaluate the changes in antimicrobial susceptibility patterns. Methods : The susceptibility of 8,224 recent clinical isolates during a 5-year period from 1993 to 1997 were tested against 8 antimicrobial agents. Antimicrobial susceptibility test was performed by disc diffusion method. Results : E. coli...
Clinical Study of Recurrent Parotitis in Children
Sam-Hwa Yim, Kye-Nam Yoon, Kyung-Yil Lee, Sang-Won Cha, Dong-Jun Lee, Ji-Whan Han, Jin-Han Kang, Kyung-Tai Whang
Clin Exp Pediatr. 2000;43(5):619-624.   Published online May 15, 2000
Purpose : Recurrent parotitis is defined as a recurrent parotid inflammation, generally associated with sialectasis of the parotid gland. It can often be misdiagnosed as recurrent mumps. We studied the clinical and laboratory features of recurrent parotitis. Methods : Outpatient clinical records of 23 cases were analyzed retrospectively between April 1993 and March 1999. Follow-up after the last outpatient clinic...
The Clinical Characteristics and Gene Analysis of Korean Gaucher Disease with Central Nervous System Involvement
Hoi Seok Choi, Sung Hwan Kim, Hiroyuki Ida, Hyun Ju Kim
Clin Exp Pediatr. 2000;43(5):611-618.   Published online May 15, 2000
Purpose : We performed the study to determine the clinical characteristics and natural history of Gaucher disease with CNS involvement in Korea as well as to determine whether gene analysis would be helpful in the identification of neuronopathic Gaucher disease. Methods : We described the initial symptom, clinical manifestations, age of onset, clinical neurophysiologic findings and brain MRI findings from the...
The Utility of Serum Prealbumin as a Biochemical Marker for Nutritional Adequacy in Neonates
Ji A Jung, Eun Ae Park, Jeong Wan Seo, Seung Joo Lee
Clin Exp Pediatr. 2000;43(5):605-610.   Published online May 15, 2000
Purpose : The purpose of this study was to determine the utility of serum prealbumin as a biochemical marker for nutritional adequacy in neonates. Methods : From March 1998 to May 1999, 71 fullterm(54 AGA, 9 LGA, 8 SGA) and 46 preterm neonates were enrolled. The correlations among prealbumin, albumin, birth weight and gestational age were obtained. Serum concentrations of albumin...
Analysis of Risk Factors of Readmission to Hospital for Pediatric Asthma
Kyung Lim Yoon, Young Ho Rah, Chong-Woo Bae, Sa Jun Chung
Clin Exp Pediatr. 2000;43(4):556-560.   Published online April 15, 2000
Purpose : The admission rates for pediatric asthma are increasing annually and are partially responsible for the increased rates of readmission. Selections of children with a high-risk of readmission and aggressive treatments of them may improve treatment outcome and cost- effectiveness. The purpose of this study is to evaluate the risk factors affecting readmission in cases of bronchial asthma in...
Serum Leptin Levels in Children with Type I Diabetes Mellitus
Eun Sil Lee, Han Ku Moon, Yong Hoon Park, Yong Woon Kim
Clin Exp Pediatr. 2000;43(4):550-555.   Published online April 15, 2000
Purpose : Leptin is a highly hydrophobic 16-kDa protein encoded by the ob gene which is expre- ssed in adipocytes and participates in the regulation of food intake and energy expenditure. The aims of the present study were to examine the comparison of leptin levels between type I diabetes mellitus(DM) patients who received exogenous insulin therapy and healthy children, and...
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