• Search
  • Advanced Search

Search

  • HOME
  • Search
Original Article
The Improvement of Cell Viability due to Dilution and Removal of DMSO in Thawing of Stem Cells
Hoon-Kyung Lee, Kyung-Ha Ryu, Il-Tae Whang, Eun Suk Kang, Ki Sook Hong, Kyung-Hyo Kim, Young-Mi Hong, Kyung-Hee Kim, Keun Lee
Clin Exp Pediatr. 2000;43(2):241-246.   Published online February 15, 2000
Purpose : Cryopreserved stem cells from cord blood are usually infused with Dimethyl Sulfoxide (DMSO) immediately after thawing. However, this process may cause cell damage due to osmotic shock, and the administration of DMSO may also cause toxic effects. We studied a new method of increasing cell viability by stabilizing osmolarity by adding dextran 40 and washing out DMSO. Methods :...
Construction and Application of Painting probe for Chromosome band 5q14-q15, 6q23, 16p11.2 and 22q12
Soo-Yeun Park, So Young Park, Joon-Il Kil, Yong-Hyuck Chun, Sun-Hwa Park
Clin Exp Pediatr. 2000;43(2):179-187.   Published online February 15, 2000
Purpose : Chromosome microdissection has become a very powerful approach to generate chromosome band-specific library and painting probes for physical mapping or cytogenetic analysis. We have constructed here band-specific painting probes for human chromosomes by microdissection and polymerase chain reaction(PCR). Methods : We pretreated the microdissected fragments with Topoisomerase I(Topo I) which catalyzes the relaxation of supercoiled DNA, and performed...
Apoptosis, P53, bax and Bcl-2 Protein Expressions in Neonatal rat Hippocampus by Kainic Acid-induced Seizure
Shin Weon Yun, Soo Ahn Chae, Eung sang Choi, Byoung Hoon Yoo
Clin Exp Pediatr. 2000;43(1):85-96.   Published online January 15, 2000
Purpose : Apoptosis is a process of active cell death which has been suggested to be part of hippocampal cell loss caused by kainic acid(KA). Immature rats showed higher susceptibility and mortality to KA but did not develop recurrent seizure, long term behavioral or neuropathologic changes. We investigated whether this was due to age-dependent resistance, and elucidated the molecular mechanics which mediate P53-induced apoptosis,...
Case Report
Follow up of a Case of Primary Intestinal Lymphangiectasia
Su Jeong Ha, Soo Jung Lee, Dae Kyun Koh
Clin Exp Pediatr. 1999;42(10):1452-1458.   Published online October 15, 1999
Primary intestinal lymphangiectasia is a rare congenital disorder characterized by diffuse or localized ectasia of the enteric lymphatics, often in association with lymphatic abnormalities elsewhere in the body. The pathogenesis of these abnormal lymphatic structures is uncertain. Ectatic lymphatics may be located in the mucosa, submucosa, or subserosa, leading to a loss of protein and lymphocytes into the gut or...
Original Article
Early Diagnosis of Rifampin-Resistant Mycobacterium tuberculosis by Gene Analysis of RNA Polymerase B Subunit
Ki Seok Park, Nam Soo Park, Eun Ryoung Kim, Seok Ho Choi, Hyun Phil Cho, Young Ho Moon, Il Soo Kim
Clin Exp Pediatr. 1999;42(10):1403-1411.   Published online October 15, 1999
Purpose : The control of tuberculosis is seriously threatened worldwide by the recently emerging multidrug-resistant Mycobacterium tuberculosis. As a result, early detection of drug resistant M.tuberculosis strain has become very important but conventional laboratory methods are time consuming and delayed results often affect patients adversely in controlling tuberculosis. The authors studied the usefulness of the line probe assay to determine...
Hepatitis B Virus Precore and Core Promotor Mutations in Children with Chronic Hepatitis B Infection
Woo Yeong Chung, Jin Kuk Kim, Yeong Hoon Kim, Yeong Hong Park, Chul Ho Kim
Clin Exp Pediatr. 1999;42(10):1392-1402.   Published online October 15, 1999
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 31 children with chronic HBV infection were analyzed by direct sequencing of polymerase chain reaction amplification of HBV DNA. Results : Twenty-nine adr type were analyzed. The mutations...
Case Report
A Case of Propionic Acidemia
Woo Seop Yeoum, Kwang Wook Lee, Byeong Ho Chae, Baek Keun Lim, Hong Jin Lee
Clin Exp Pediatr. 1999;42(8):1159-1164.   Published online August 15, 1999
Propionic acidemia is an autosomal-recessive inborn error of branched-chain amino acid metabolism. It is caused by deficient activity of propionyl-coenzyme A carboxylase and is characterized by a spectrum of clinical and biochemical findings. It usually manifests in the neonatal period or early infancy. Since Childs et al first described the propionic acidemia of infants in 1961, it has rarely been...
Original Article
Changes in GFAP Immunoreactivity of Astrocytes in Rats with Reye's Syndrome Induced by Valproic Acid and the Effects of Carnitine Supplementation
Young-Yoo Kim, Kyung-Tai Whang
Clin Exp Pediatr. 1999;42(7):966-979.   Published online July 15, 1999
Purpose : This study was designed to investigate whether valproic acid(VPA) induces Reye's syndrome by analyzing blood chemistry, carnitine(CARN) concentration, and the morphologic changes of hepatocytes. The changes of GFAP immunoreactivity of astrocytes were examined in rats with Reye's syndrome induced by VPA. And the effects of CARN supplementation on Reye's syndrome were also investigated. Methods : Ten rats were assigned...
Renal Problems in Wilson Disease
Il Soo Ha, Jun Ho Lee, Yeon Ho Choe, Hae Il Cheong, Sei Won Yang, Young Yull Koh, Jeong Kee Seo, Yong Choi
Clin Exp Pediatr. 1999;42(6):817-824.   Published online June 15, 1999
Purpose : Wilson disease is a hereditary metabolic disorder characterized by an accumulation of copper in tissues which sometimes results in renal problems. This study was performed to evaluate the prevalences of the renal problems in Wilson disease and related risk factors. Methods : In 31 patients with Wilson disease, we looked for renal problems by history taking, physical examination...
Intralipid Infusions Effect on Nutrophil Elastase Level in Newborns
Sue Jeen Min, Yong Woon Baek, Yong Woon Baek, Yong Woon Baek
Clin Exp Pediatr. 1999;42(5):666-671.   Published online May 15, 1999
Purpose : Parenteral nutrition is given to infants who tempararily cannot take oral feeding adequately. A lipid emulsion is added to the parenteral to supply essential fatty acids. In neonatal sepsis, elastase from azuropilic granules of the neutrophils is released and rapidly bound to α1- Proteinase Inhibitor(α1-PI). The lipid emulsion has been noted to markedly inhibit chemotaxis of neutrophils, so...
Cell Proliferation and Apoptosis in Heart of Trisomy 16 in Mice
Eun Jung Bae, Yong Soo Yun, Jung Sun Kim, Jeong-Wook Seo
Clin Exp Pediatr. 1999;42(5):621-630.   Published online May 15, 1999
Purpose : Although abnormal developments of cushion and atrioventricular septum have been suggested, the exact mechanism for the development of atrioventricular septal defect is not well known. We aimed to identify the role of cell proliferation and apoptosis on cardiac morphogenesis in trisomy 16 mice(an animal model for Down's syndrome in human). Methods : We examined the difference in cardiac...
Clinical Significance of CD7 Expression in Acute Myelocytic Leukemia
Gye Jin Yoon, Pill Sang Jang, Young Choi, Jun A Lee, Hyo Jung Han, Hyoung Soo Choi, Hee Young Shin, Joong Gon Kim, Hyo Seop Ahn
Clin Exp Pediatr. 1999;42(3):374-382.   Published online March 15, 1999
Purpose : It has been shown that a considerable number of acute myeloid leukemia(AML) patients had both myeloid and lymphoid antigens. CD7 is a lymphoid antigen, often expressed in AML cells. We investigated 40 AML patients to clarify the relationship between the cellular characteristics and clinical features. Methods : We reviewed 8 CD7 positive(CD7＋) AML patients and 32 CD7 negative(CD7－)...
Case Report
A Case of Microscopic Polyangitis Presented as Pulmonary Hemorrhage and Rapidly Progressive Glomerulonephritis
Jae Eun Lee, Young Sook Chae, Oh Keyng Lee, Dae Youl Lee
Clin Exp Pediatr. 1999;42(2):274-278.   Published online February 15, 1999
Microscopic polyangitis(MPA) is defined as a systemic necrotizing vasculitis that affects small- sized vessels without granulomata. MPA is associated with focal segmental necrotizing glomerulonephritis. Clinical manifestations are similar to those of polyarteritis nodosa, but are characterized by the presence of rapidly progressive glomerulonephritis and pulmonary involvement, including pulmonary hemorrhage. We reported a case of microscopic polyangitis presenting pulmonary hemorrhage and...
A Case of Pure Red Cell Anemia Complicated by Antiepileptic Drugs
Hyunmi Kim, Sang Gyu Park, Sung Ryeul Kim
Clin Exp Pediatr. 1999;42(2):264-267.   Published online February 15, 1999
A 12-year-old boy developed pure red cell anemia(PRCA) during a combination therapy of antiepileptic drugs(AEDs) for epilepsy. His complex partial seizure was intractable to monotherapy. During 7 months of treatment, he was treated with Vigabatrin, Carbamazepine and Valproate. While switching from Carbamazepine to Valproate, he presented anemia but with no jaundice. His hemoglobin was 4.1g/dl bone-marrow biopsy revealed erythroid hypoplasia...
Original Article
Distribution and Expression of α-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid(AMPA) Receptor Subunits in Moderate Hypoxic Newborn Piglet Brain
Na Yeon Kim, Woo Taek Ki
Clin Exp Pediatr. 1999;42(2):239-248.   Published online February 15, 1999
Purpose : The mechanism of hypoxic damage is mainly intracellular influx of calcium ions through the glutamate ionotropic receptor(NMDA, AMPA/kainate). This study was performed to determine alterations in distribution and expression of AMPA receptor subunits after 1-hour of moderate hypoxia in the newborn piglet brain, in a state of mild to moderate perinatal hypoxic-ischemic encephalopathy. Methods : Ten newborn piglets were...
Case Report
A Case of Acute Myeloblastic Leukemia Transformed from Transient Myeloproliferative Disorder with Down Syndrome
Jae Eun Lee, Seung Woo Baeck, Wan Seob Kim, Chun Hee Lee
Clin Exp Pediatr. 1999;42(1):128-132.   Published online January 15, 1999
Individuals with Down syndrome have a high incidence of hematologic diseases such as transient myeloproliferative disorder(TMD) & acute leukemia. Because it is difficult to distinguish TMD from acute myeloblastic leukemia, the diagnosis in neonate, who have Down syndrome, should be made with extreme caution. TMD usually undergoes spontaneous remission within a few months, but acute leukemia can develope after remission...
A Case of Myositis Ossificans Progressiva
So Young Park, Su Jin Lee, Ji A Chung, Seung Joo Lee
Clin Exp Pediatr. 1998;41(11):1601-1605.   Published online November 15, 1998
Myositis ossificans progressiva(MOP) is a rare, slow progressive autosomal dominant disorder that principally affects children under the age 10 years. It is characterized by progressive fibroblastic proliferation, and subsequent calcification and ossification of subcutaneous fat, muscles, tendons, aponeuroses and ligaments. The disorder is often associated with symmetrical malformations of the digits, especially microdactyly or adactyly of the thumbs and great...
Original Article
Immune Responses and Efficacy of Hepatitis B Vaccine in Neonates Born from Hepatitis B Carrier Mothers : Focus on HBV-DNA
Jong-Hyun Kim, Jin-Han Kang, Chang-Kyu Oh
Clin Exp Pediatr. 1998;41(11):1498-1508.   Published online November 15, 1998
Purpose : The aim of this study was to elucidate the pathogenesis of vertical transmission of hepatitis B virus(HBV), and to study the protective efficacy of the vaccine and hepatitis B immune globulin(HBIG). Methods : Eighty-two infants born from HBV carrier mothers were studied. HBV plasma-derived vaccine and HBIG were administered to their neonates. Then, changes of viral markers, anti-preS2...
The Significance of Family History, Immunoglobulin E, Total Eosinophils and Eosinophil Cationic Protein as a Predictor of Allergic Diseases
Dong Su Park, Hyun Hee Kim, Joon Sung Lee
Clin Exp Pediatr. 1998;41(9):1273-1282.   Published online September 15, 1998
Purpose : Family history of allergy and cord blood immunoglobulin E concentration have been proven to be predictors of the development of allergic diseases in children. The purpose of this study is to evaluate whether maternal, cord and baby's blood total eosinophils or eosinophil cationic protein(ECP) in addition to the above two predictors could be a predictor of subsequent allergic...
Correlation Between Clinical and Pathological Prognositic Factors of IgA Nephropathy in Children
Hwang Jae Yoo, Bon Su Ku, Young Tak Lim, Su Yung Kim
Clin Exp Pediatr. 1998;41(8):1093-1101.   Published online August 15, 1998
Purpose : Clinical and pathological prognostic factors of idiopathic IgA nephropathy have been reported, but mostly in adults and a few in children. Especially studies about correlation between those factors are very rare. Methods : We studied 58 children patients who were hospitalized to our clinics and diagnosed as IgA nephropathy by renal biopsy from Jan. 1989 to Jun 1996. They...
C-Reactive Protein and Duration of Antibiotic Therapy in Neonatal Bacterial Infection
Jae Il Yoo, Jin Hwa Jeong, Jeong Ho Lee, Jong Dae Cho
Clin Exp Pediatr. 1998;41(7):901-908.   Published online July 15, 1998
Purpose : To determine whether C-reactive protein(CRP) can be used as a parameter to assess the safety of discontinuing antibiotic therapy and allows a shorter course of therapy in neonates treated for suspected bacterial infection. Methods : We have experienced 193 cases of suspected neonatal bacterial infection at Pusan Maryknoll Hospital. CRP levels were measured daily by immunonephelometry. Infants with initial...
Case Report
A Case of the Esophageal Atresia with Proximal Tracheoesophageal Fistula
Heung Taeg Kim, Woung Jik Bae, Soon Lee Jung, Jae Won Lee
Clin Exp Pediatr. 1998;41(6):861-864.   Published online June 15, 1998
The congenital esophageal atresia with proximal tracheoesophageal fistula is a developmental defect with incomplete septation of the foregut of embryonic period and is often associated with other congenital anomaly. We experienced a case of the esophageal atresia with proximal tracheoesophageal fistula in a 1-day old male patient who was transferred from an obstetric clinic due to respiratory distress soon after birth. The baby was treated...
Original Article
Immunologic Alterations of Peripheral Mononuclear Cells by Intravenous Immunoglobulin in the Acute Stage of Kawasaki disease
Ji-Whan Han, Kyung-Yil Lee, Kyong-Su Lee
Clin Exp Pediatr. 1998;41(6):813-824.   Published online June 15, 1998
Purpose : High dose intravenous immunoglobulin(IVIG) therapy is effective in reducing the incidence of coronary artery aneurysm in Kawasaki disease(KD) patients, however, the precise mechanisms by which IVIG reverses the immune activation is unknown. Methods : The sera and peripheral mononuclear cells(PBMCs) were obtained from 10 KD patients in the acute stage(24 hrs before) and 24 hrs after one dose of IVIG(2g/kg) treatment. We measured...
A Clinical Study of Survival Rate and Prognostic Factors in Advanced Neurobalstoma in Children
Seung Yang, Ho Joon Im, Nam Su Kim, Hahng Lee
Clin Exp Pediatr. 1998;41(5):684-694.   Published online May 15, 1998
Purpose : Despite the use of improved therapeutic modalities, long-term survival remains poor in patients in stage Ⅲ or Ⅳ of neurobalstoma and for over 1 year olds at diagnosis. We evaluated the long-term survival rate and related prognostic factors in advanced neuroblastoma. Methods : Twenty-nine children diagnosed with stage Ⅲ or Ⅳ neuroblastoma after 1 year of age, between May...
On the Significance of Blood Sampling Time in Neonatal Neurologic Prognosis Using Creatine Kinase BB
Heung Taek Kim, Mi Kyung Son, Eun Ju Kim, Kyuchul Choeh
Clin Exp Pediatr. 1998;41(5):669-676.   Published online May 15, 1998
Purpose : To investigate the cut-off value of creatine kinase(CK) BB according to blood sampling time in predicting neonatal prognosis, we studied the time-related releasing pattern of CK isoenzymes after birth asphyxia. Methods : CK was measured within 1 hour and at 6-10 hours after birth from 45 newborn infants who were suspected to be perinatal asphyxia or fetal distress. The...
Preparation and in vitro Physical Activities of Crude Natural Surfactant and Artificial Pulmonary Surfactant Containing Synthetic Peptide and Phospholipid Mixtures
Joo Hyun Kang, Song Yub Shin, Cheol-Young Maeng, Kil Lyong Kim, Chong-Woo Bae, Kyung-Soo Hahm
Clin Exp Pediatr. 1998;41(4):472-480.   Published online April 15, 1998
Purpose : In this study, natural pulmonary surfactant was extracted from bovine lung lavage and its surface activity was determined. To investigate the usefulness of synthetic peptides reconstituted with phospholipid as artificial surfactant, truncated peptides from surfactant protein (SP)-B were synthesized and restored the surface tension lowering activities when appropriately recombined with phospholipid. Methods : Crude natural surfactant(CNS) was isolated from lung lavage by centrifugation...
Case Report
A Case of Genital Prolapse in Premature Baby
Woong Kyu Choi, Seung Cheol Lee, Yong Won Park, Chong Guk Lee, Sang Woo Kim
Clin Exp Pediatr. 1998;41(2):281-284.   Published online February 15, 1998
Neonatal genital prolapse is very rare and is usually associated with meningomyelocele or other anomalies of the central nervous system. Synonyms of genital prolapse are sacropubic hernia, pelvic relaxation, and pelvic organ prolapse. There are two types of genital prolapse including vaginal prolapse and uterovaginal prolapse. We experienced a case of uterovaginal prolapse in a 30 day-old premature infant, which...
Protein Losing Entropathy Due to TB Enterocolitis was Detected by 99mTc-Human Serum Albumin Scan
Hyoung No Kim, Jae Won Huh, Sang Gun Bee, Yong Woon Back, Chang Hyun Lee
Clin Exp Pediatr. 1997;40(12):1750-1755.   Published online December 15, 1997
Protein losing entropathy was a secondary disorder of the gastrointestinal tract, which is associated with lymphatic obstruction, inflammatory and noninflammatroy disease. It' s clinical manifestations were abdominal pain, edema, diarrhea and growth failure. We described a 12-year-old boy, who had chronic diarrhea for 3 months and edema of lower extremities for 7 days. He also had severe hypoalbuminemia, iron definency anemia, liver diseases and malnurition,...
Original Article
A Result of Treatment of Malignant Germ Cell Tumors in Childhood
Hyoung Jin Kang, Jun Ah Lee, Hyo Jeong Han, Hyoung Su Choi, Hyeon Jin Park, Ki Woong Sung, Eun Sun Yoo, Hee Young Shin, Hyo Seop Ahn, Kwi Won Park, Byung Keu Cho, Hwang Choi, Chul Woo Kim
Clin Exp Pediatr. 1997;40(12):1707-1718.   Published online December 15, 1997
Purpose : Germ cell tumors have variable clinical characteristics according to the age, sex, primary site, and pathologic diagnosis. To provide the therapeutic principle, the clinical characteristics, response to the treatment, and prognostic factors were analyzed. Methods : Medical records of 57 children who were diagnosed as malignant germ cell tumor in Seoul National University Children' s Hospital from January 1986 till June 1996 were...
Childhood Near-Drowning in Chinju
Hyang Ok Woo, Chan-Hoo Park
Clin Exp Pediatr. 1997;40(11):1588-1595.   Published online November 15, 1997
Purpose : Drowning is the second most common cause of accidental death in children, exceeded only by motor vehicle accidents. The purpose of the present study was to investigate the prognostic factors of near-drowning in children, such as age, sex, season, site of submersion, and initial clinical or laboratory manifestrations, and to formulate preventive strategies for decreasing injuries by drowning. Methods : Sixty-one near-drowning children...