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Case Report
A case of regression of atypical dense deposit disease without C3 deposition in a child
Min Sun Kim, Pyoung Han Hwang, Mung Jae Kang, Dae-Yeol Lee
Clin Exp Pediatr. 2010;53(7):766-769.   Published online July 31, 2010

Dense deposit disease (DDD) is a rare disorder characterized by the deposition of abnormal electron-dense material within the glomerular basement membrane of the kidneys. The diagnosis is made in most patients between 5 and 15 years of age, and within 10 years, approximately half of the affected patients progress to end-stage renal disease. We report a rare case of regressive...

Original Article
Changes in the expression of cytokines and apoptosis-related genes in children with infectious mononucleosis
Dae Sun Jo, Ji Hye Han, Sun Young Kim, Min Sun Kim, Ho Keun Yi, Dae-Yeol Lee, Pyoung Han Hwang
Clin Exp Pediatr. 2009;52(12):1348-1357.   Published online December 15, 2009
Purpose : The aims of this study were to identify the clinical characteristics and determine the changes in the expression of cytokines and apoptosis-related genes in children with infectious mononucleosis. Methods : Serological examinations of 15 pediatric patients diagnosed with infectious mononucleosis were performed prospectively. Peripheral blood from the patients was used to compare the composition of T cell subsets,...
Salmonellosis in children: Analysis of 72 Salmonella-positive culture cases during the last 10 years
Sung Hoon Noh, Ka Young Yu, Jung Soo Kim, Pyoung Han Hwang, Dae Sun Jo
Clin Exp Pediatr. 2009;52(7):791-797.   Published online July 15, 2009
Purpose : We aimed to investigate the clinical manifestations of and antibiotic resistance in culture-proven childhood salmonellosis. Methods : Clinical manifestations and laboratory data of and antibiotic use in subjects with culture-proven childhood salmonellosis, who were treated at the Chonbuk National University Hospital between September 1998 and August 2008, were analyzed retrospectively. Patients with underlying diseases or concomitant illnesses were excluded. Results...
Iron chelating agent, deferoxamine, induced apoptosis in Saos-2 osteosarcoma cancer cells
Eun Hye Park, Hyo Jung Lee, Soo Yeon Lee, Sun Young Kim, Ho Keun Yi, Dae Yeol Lee, Pyoung Han Hwang
Clin Exp Pediatr. 2009;52(2):213-219.   Published online February 15, 2009
Purpose : Iron is a critical nutritional element that is essential for a variety of important biological processes, including cell growth and differentiation, electron transfer reactions, and oxygen transport, activation, and detoxification. Iron is also required for neoplastic cell growth due to its catalytic effects on the formation of hydroxyl radicals, suppression of host defense cell activities, and promotion of...
Case Report
Hand-Foot syndrome induced by sorafenib, a multitargeted tyrosine kinase inhibitor, in a patient with advanced renal cell carcinoma
Seung Hyun Lee, Sung Hun Noh, Sun Young Kim, Kyu Yun Jang, Pyoung Han Hwang
Clin Exp Pediatr. 2009;52(1):119-123.   Published online January 15, 2009
Renal cell carcinoma (RCC) arising from epithelial cells of the renal tubules is a highly aggressive and malignant tumor in all ages; however, it rarely occurs in children. the standard treatment for RCC is radical nephrectomy with lymph node dissection when the tumor is localized and can be completely resected. Adjuvant chemotherapy, radiotherapy, and immunotherapy are used for pediatric patients...
Original Article
Capsaicin induced apoptosis and the enhanced anticancer effect of anticancer drugs in cancer cells
Sun Young Kim, You Jin Lee, Eun Hye Park, Ho Keun Yi, Dae Sun Jo, Jung Soo Kim, Pyoung Han Hwang
Clin Exp Pediatr. 2008;51(3):307-314.   Published online March 15, 2008
Purpose : Capsaicin, the major pungent ingredient in red pepper, has long been used in spices and food additives. It has been recently shown to induce apoptosis in several cell lines through a not well known mechanism. The aim of this study was to investigate the apoptosis-inducing effect of capsaicin on gastric cancer cells, and to provide valuable information concerning...
Case Report
Acute hemorrhagic edema in an infant mimicking Henoch-Sch nlein purpura: a case study
Hyang Mo Lee, Eun Young Kang, Han Uk Kim, Pyoung Han Hwang
Clin Exp Pediatr. 2006;49(12):1354-1357.   Published online December 15, 2006
Acute hemorrhagic edema of infancy (AHEI) is an uncommon form of cutaneous leukocytoclastic vasculitis that occurs in infants and children younger than 2 years. AHEI is characterized clinically by marked peripheral edema and fever as well as large palpable purpuric and ecchymotic skin lesions in a target-like pattern, mainly on the face, ears and extremities, similar to the skin findings...
Original Article
The anti-tumor mechanisms of p53 through the regulation of expression and glycosylation of insulin-like growth factor binding protein-3
Sun Young Kim, Se Rim Kim, Jung Chang Lee, Ho Keun Yi, Dae Yeol Lee, Pyoung Han Hwang
Clin Exp Pediatr. 2006;49(4):431-438.   Published online April 15, 2006
목 적 : 새로운 암억제 유전자로 알려진 IGFBP-3의 주요 기능은 IGF-I과 IGF-II와 결합을 하여 IGF의 기능을 조절하는 IGF dependent mechanism과 IGFBP-3 자체가 IGF와 결합과는 무관하게 세포의 apoptosis를 유도하는 IGF independent mechanism이 보고되었다. 암억제 유전자 p53의 대표적인 항암기전의 하나는 직접 IGFBP-3의 발현을 증가시키며, 발현된 IGFBP-3는 암세포의 apoptosis를 유도시킨다. IGFBP-3의 항암작용은 보고되었지만, IGFBP-3의 변역 후 변형에 의한 항암기전은 전혀 밝혀져 있지 않다....
Comparision of PCR-RFLP, PCR-SSCP, Amplication Refractory Mutation System(ARMS) in Leu72Met Polymorphism of Ghrelin Gene
Ju Sung Kang, Se Rim Kim, Sun Young Kim, Chan Uhng Joo, Soo Chul Cho, Pyoung Han Hwang
Clin Exp Pediatr. 2005;48(10):1068-1075.   Published online October 15, 2005
Purpose : The role of ghrelin, which promotes the secretion of growth hormone, was not well known until now. Recently it was found that the mutation of ghrelin gene is related to obesity and diabetes. This study is to find the screening method that can easily and effectively detect the polymorphism of Leu72Met in ghrelin gene of obesity patients and...
Case Report
A Case of Wiskott-Aldrich Syndrome with Novel Mutation in Exon 2 of the WASP Gene
Hyuk Lee, Jung In Park, Sun Young Kim,, Kyeung Hee Moon, Ho Keun Yi, Pyoung Han Hwang
Clin Exp Pediatr. 2005;48(5):551-556.   Published online May 15, 2005
Wiskott-Aldrich syndrome(WAS) is an X-linked recessive immunodeficiency characterized by thrombocytopenia with small platelet volume, eczema, and recurrent infections, and is also characterized by increased incidence of auto immune diseases and malignancies. The phenotype observed in this syndrome is caused by mutation in the Wiskott-Aldrich syndrome protein(WASP) gene localized to the proximal short arm of the X chromosome and recently isolated...
Original Article
The Tumor Suppressor Function of PTEN/MMAC1 through the Regulation of IGFs and IGFBPs
Ho Keun Yi, Dong Jin Hwang, Sun Young Kim, Dae Yeol Lee, Pyoung Han Hwang
Clin Exp Pediatr. 2004;47(8):884-891.   Published online August 15, 2004
Purpose : PTEN/MMAC1, a novel tumor suppressor gene, is mutated in a variety of advanced and metastatic cancers. It acts as a phosphatase, and thereby, regulates the PI-3 kinase/Akt pathway. In this study, we examined to evaluate the new function of anti-tumor effects of PTEN/MMAC1 through the regulation of the IGFs-IGFBPs in gastric cancer cells. Methods : PTEN/MMAC1 was expressed in...
Diagnostic Approach of Wiskott-Aldrich Syndrome
Dong Jin Hwang, Jun Won Yang, Sun Young Kim, Ho Keun Yi, Dae Yeol Lee, Pyoung Han Hwang
Clin Exp Pediatr. 2004;47(7):726-734.   Published online July 15, 2004
Objective : A probable diagnosis of Wiskott-Aldrich syndrome(WAS) should be considered in any boy presenting with unusual bleeding, congenital thrombocytopenia and small platelets. The definitive diagnosis of WAS is usually made by the detection of WASP gene mutation or a decrease or absence of the WAS protein(WASP) in blood cells using molecular genetic analysis. However, these methods are too time-consuming...
Case Report
A Case of Multiple Juvenile Xanthogranuloma Involving Skin and Systemic Organs
So Yeon Lee, Yong Seok Jang, Min Sun Kim, Yun Jeong Yang, Myoung Ja Jung, Pyoung Han Hwang
Clin Exp Pediatr. 2004;47(2):227-230.   Published online February 15, 2004
Juvenile xanthogranuloma(JXG) is one of the most common non-Langerhans cell histiocytosis, benign histiocytic proliferative disorder. It typically presents as a solitary, benign, rapidly growing cutaneous tumor that may regress spontaneously. Most cutaneous lesions of JXG occur in the head and neck region of infants and young children. This disease is usually present with cutaneous lesion only; visceral involvement including the...
Original Article
Pediatrician Perspectives on the Evaluation and Treatment of Acute Gastrointestinal Infections, Jeonbuk, South Korea, 2002
So Hee Lim, Yang Sim Koe, Dae Sun Jo, Sin Jae Lee, Pyoung Han Hwang, P. Kilgore, B. Nyhambat, Jung Soo Kim
Clin Exp Pediatr. 2003;46(12):1217-1223.   Published online December 15, 2003
Purpose : This study was conducted to assess clinical practices related to the evaluation and treatment of patients with acute gastrointestinal infection(AGI) in infants and children. This survey also evaluated the current opinion regarding the use of rotavirus vaccine. Methods : This survey was conducted using a self-administered questionnaire provided to 82 pediatricians in private clinics of Jeonbuk province. From April...
Alteration of Growth Factor Expression after Acute Ischemic Renal Injury
Yang Sim Koe, Soo Yeon Lee, Won Kim, Soo Chul Cho, Pyoung Han Hwang, Jung Soo Kim, Dae-Yeol Lee
Clin Exp Pediatr. 2003;46(7):687-694.   Published online July 15, 2003
Purpose : Regeneration and repair after ischemic renal injury appears to be modulated by circulating or locally produced growth factors. This study examined the changes of serum insulin like growth factor(IGF-I) and renal expression of IGF-I and II, vascular endothelial growth factor(VEGF), transforming growth factor-β(TGF-β), and connective tissue growth factor(CTGF) during the active regeneration period after acute ischemic injury. Methods :...
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