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Review Article
MicroRNAs as novel biomarkers for the diagnosis and treatment of pediatric diseases
Hwal Rim Jeong, Il Tae Hwang
Clin Exp Pediatr. 2024;67(3):119-125.   Published online May 24, 2023
MicroRNAs (miRNAs) are small noncoding RNAs that regulate gene expression post transcriptionally, and MiRNA expression levels vary with developmental stages. MiRNAs play an important role in several biological processes in children, including growth, neuro-development, inflammation, and tumor formation. Research on miRNAs may uncover the molecular mechanisms underlying various pediatric diseases, leading to the development of novel biomarkers that aid in the diagnosis, treatment, and prognosis of these diseases.
2017 Clinical practice guidelines for dyslipidemia of Korean children and adolescents
Jung Sub Lim, Eun Young Kim, Jae Hyun Kim, Jae-Ho Yoo, Kyung Hee Yi, Hyun Wook Chae, Jin-Ho Choi, Ji Young Kim, Il Tae Hwang; the Committee of Dyslipidemia of Korean Children and Adolescents on behalf of Korean Society of Pediatric Endocrinology (KSPE)
Clin Exp Pediatr. 2020;63(12):454-462.   Published online November 25, 2020
Question: How are children and adolescents with dyslipidemia treated and managed in Korea?
Finding: 2017 guidelines recommend to measure nonfasting non-HDL-C as a screening test and introduce new diet methods: Cardiovascular Health Integrated Lifestyle Diet (CHILD)-1, CHILD-2-low-density lipoprotein cholesterol, and CHILD-2-triglyceride. Statin is the only drug approved in children older than 10 years.
Meaning: New clinical practice guidelines for treating and managing dyslipidemia of Korean children and adolescents are provided.
Original Article
Developmental and Behavioral Medicine
Behavioral and intelligence outcome in 8- to 16-year-old born small for gestational age
Kyung Hee Yi, Yoon Young Yi, Il Tae Hwang
Clin Exp Pediatr. 2016;59(10):414-420.   Published online October 17, 2016

We investigated behavioral problems, attention problems, and cognitive function in children and adolescents born small for gestational age (SGA).


Forty-six SGA children born at term and 46 appropriate for gestational age (AGA) children born at term were compared. Psychiatric symptoms were examined with reference to the Korean-Child Behavior Checklist, Korean-Youth Self Report, and Attention Deficit Hyperactivity Disorder Rating Scale (ADHD-RS). Cognitive...

Review Article
Efficacy and safety of growth hormone treatment for children born small for gestational age
Il Tae Hwang
Clin Exp Pediatr. 2014;57(9):379-383.   Published online September 30, 2014

Recombinant growth hormone (GH) is an effective treatment for short children who are born small for gestational age (SGA). Short children born SGA who fail to demonstrate catch-up growth by 2-4 years of age are candidates for GH treatment initiated to achieve catch-up growth to a normal height in early childhood, maintain a normal height gain throughout childhood, and achieve...

Original Article
Catch up growth in children born small for gestational age by corrected growth curve
Myung Ki Jung, Ji Eun Song, Seung Yang, Il Tae Hwang, Hae Ran Lee
Clin Exp Pediatr. 2009;52(9):984-990.   Published online September 15, 2009

Purpose:Being small for gestational age (SGA) is a risk factor of short stature in children. Genetic background such as mid-parental height (MPH) is known to influence growth of children born SGA. We studied the relationship between growth of children born SGA and MPH and studied the effects of insulin-like growth factor (IGF-I) and insulin-like growth factor binding protein 3 (IGFBP-3)...
Review Article
The present condition of Korean children born small for gestational age
Il Tae Hwang
Clin Exp Pediatr. 2009;52(2):137-141.   Published online February 15, 2009
Depending on the definition used, between 3% and 10% of live neonates are small for gestational age (SGA). The definition of SGA requires the following: (1) accurate knowledge of gestational age; (2) accurate measurements at birth of weight, length, and head circumference; (3) a cutoff, which has been variably set at the 10th percentile, 3rd percentile, or at less than...
Original Article
The relationship between adiponectin, leptin, insulin, insulin-like growth factor and IGF binding protein-3 in cord blood and neonatal anthropometric parameters
Hai Jung Cho, Ji Young Kim, Me Jin Kim, Il Tae Hwang, Hae Ran Lee
Clin Exp Pediatr. 2008;51(7):722-728.   Published online July 15, 2008
Purpose : This study was designed to examine the effects of adiponectin, leptin, insulin, insulin-like growth factor (IGF)-I and IGF binding protein (BP)-3 levels in cord blood on weight, length, and adiposity at birth in healthy term infants. In addition, we evaluated the mechanism to change the hormone levels in appropriate for gestational age (AGA) during the first month. Methods :...
The usefulness of skin test in evaluation of immunity to varicella
Ji-Young Kim, Hye Jeen Lee, Me Jin Kim, Young Ho Kim, Ji A Jung, Seung Yang, Il Tae Hwang, Hae Ran Lee
Clin Exp Pediatr. 2008;51(4):377-382.   Published online April 15, 2008
Purpose : The aim of this study is to assess the usefulness of skin test by an inactivated, 1/50 diluted solution of attenuated varicella vaccine in evaluating the immune status to varicella. Methods : Total 41 subjects (22 males, 19 females, aged 1-32 years) were enrolled from July to August, 2005. Past medical history including varicella infection, varicella vaccination were investigated...
Review Article
Evaluation of function and disorders of the adrenal gland in neonates
Il Tae Hwang
Clin Exp Pediatr. 2007;50(3):236-240.   Published online March 15, 2007
Majority of sick full term newborns have adequate adrenal cortical function in response to stress. Acutely ill neonates with a basal cortisol level less than 15 g/dL (414 nmol/L) suggest adrenal insufficiency and require function testing of adrenal function. In premature infant, immaturity of hypothalamic-pituitary adrenal axis (HPA axis), may limit the ability to increase cortisol production in response...
Original Article
A Study of the Relationship between Childhood Obesity and Beverage Intake
Ji Hyun Oh, In Keun Kwak, Seung Yang, Il Tae Hwang, Ji Ah Jung, Hae Ran Lee
Clin Exp Pediatr. 2003;46(11):1061-1066.   Published online November 15, 2003
Purpose : The rising prevalence of childhood obesity may be due to an energy imbalance between food intake and energy expenditure. Recently, consumption of beverages in children has increased. The aim of this study is to provide useful information for the prevention and the control of childhood obesity by assessment of variable beverage consumption. Methods : Fight hundred seventy seven children(M...
The Separate and Combined Effects of Insulin, Dexamethasone and Growth Hormone on the OB Gene Expression and Leptin Secretion from Cultured Human Visceral Adipose Tissue
Il Tae Hwang, Kyung Hee Kim, Jin Soon Hwang, Choong Ho Shin, Sei Won Yang
Clin Exp Pediatr. 2003;46(8):795-802.   Published online August 15, 2003
Purpose : We investigated the hormonal control of OB gene expression and leptin secretion in cultured human visceral adipose tissue. Methods : Visceral adipose tissues were cultured for up to 48 hrs in modified Eagle's medium with varying concentration of hormones : Control(no hormone), bovine insulin(100 nM), Dexamethasone(DEX, 100 nM), growth hormone(GH, 40 ng/mL), insulin+DEX(100 nM each), insulin+DEX+GH(100 nM insulin...
Evaluation of Health Status and Growth and Developmental Outcome of Intrauterine Growth-Retarded Infants
Il Tae Hwang, Eun Ae Park, Ho Seong Kim, Gyoung Hee Kim
Clin Exp Pediatr. 2001;44(6):635-641.   Published online June 15, 2001
Purpose : Although many children born with intrauterine growth retardation demonstrate significant catch-up growth in early childhood, substantial weight and height deficits remain in others. In addition, children with IUGR may demonstrate developmental deficits. The aims of this study are to evaluate the health status, growth and deveolpmental outcome of intrauterine growth retarded infants. Methods : Sixty five intrauterine growth retarded...
Risk Factors for Cardiovascular Disease in Obese Children
Su Jin Cho, Se Jin Park, Il Tae Hwang, Young Mi Hong
Clin Exp Pediatr. 2001;44(5):493-500.   Published online May 15, 2001
Purpose : Obesity is known to be associated with complications such as hypertension, dyslipidemia, and insulin resistance. The importance of insulin resistance and hyperinsulinemia have been emphasized in obesity. Homocysteine is an emerging important risk factor for cardiovascular disease in adult, but there are less reports about homocysteine in children. Several risk factors such as blood pressure, lipid profiles, serum...
Case Report
A Case of Spontaneouse Hemothorax Associated with a Posterior Mediastinal Endodermal Sinus Tumor in a Female Patient
Eui Seok Park, Il Tae Hwang, Ghee Young Jung, Du Bong Lee, Young Sook Han, Hyo Seon Choi, Mi Kyeong Ji
Clin Exp Pediatr. 1997;40(10):1465-1469.   Published online October 15, 1997
Primary endodermal sinus tumor(yolk sac tumor) of the mediastinum is rare. Most patients are young and male, and the great majority of tumors are found in the anterior mediastinum, and spontaneous hemothorax is a rare presentation of intrathoracic tumors. We report a case of spontaneous hemothorax associated with a posterior mediastinal endoderml sinus tumor occuring in a female patient. Brief review and related literatures...
A Case of Intestinal Abnormal Rotation by Mesenteric Lymphangioma
Eui Seok Park, Il Tae Hwang, Ghee Young Jung, Du Bong Lee, Hyo Seon Choi, Mi Kyung Jee
Clin Exp Pediatr. 1997;40(9):1309-1313.   Published online September 15, 1997
Mesenteric lymphangioma was first recognized when an autopsy case was recorded in 1507 by Benevieni. It has been known clinically rare disease and probably a congenital developmental abnormality due to failure of drainage of peripheral primary lymphatic spaces. We experienced a case of abnormal rotation in intestine by mesenteric lymphangioma in a 8 years old male who showed vomiting and abdominal...
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