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Original Article
Allergy
Accuracy of maximal expiratory flow-volume curve curvilinearity and fractional exhaled nitric oxide for detection of children with atopic asthma
Sang Hoo Park, Min Ji Im, Sang-Yong Eom, Youn-Soo Hahn
Clin Exp Pediatr. 2017;60(9):290-295.   Published online September 21, 2017
Purpose

Airway pathology in children with atopic asthma can be reflected by the concave shape of the maximal expiratory flow-volume (MEFV) curve and high fractional exhaled nitric oxide (FeNO) values. We evaluated the capacity of the curvilinearity of the MEFV curve, FeNO, and their combination to distinguish subjects with atopic asthma from healthy individuals.

Methods

FeNO and angle β, which characterizes the general...

House dust mite-specific immunoglobulin E and longitudinal exhaled nitric oxide measurements in children with atopic asthma
Youn Kyung Lee, Sohyoung Yang, Joohyun Park, Heon Kim, Youn-Soo Hahn
Clin Exp Pediatr. 2015;58(3):89-95.   Published online March 20, 2015
Purpose

House dust mite (HDM) has been suggested to be the most important aeroallergen responsible for atopic asthma in Korea. We aimed to investigate that specific IgE antibodies to HDM and other common indoor aeroallergens contribute differently to total serum IgE and show different relationships with longitudinal fractional exhaled nitric oxide (FeNO) measurements in Korean atopic asthmatic patients.

Methods

A total of 193...

Review Article
Association of wheezing phenotypes with fractional exhaled nitric oxide in children
Jung Yeon Shim
Clin Exp Pediatr. 2014;57(5):211-216.   Published online May 31, 2014

Asthma comprises a heterogeneous group of disorders characterized by airway inflammation, airway obstruction, and airway hyperresponsiveness (AHR). Airway inflammation, which induces AHR and recurrence of asthma, is the main pathophysiology of asthma. The fractional exhaled nitric oxide (FeNO) level is a noninvasive, reproducible measurement of eosinophilic airway inflammation that is easy to perform in young children. As airway inflammation precedes...

Measurements of fractional exhaled nitric oxide in pediatric asthma
Youn-Soo Hahn
Clin Exp Pediatr. 2013;56(10):424-430.   Published online October 31, 2013

Exhaled nitric oxide (NO) has been extensively investigated as a noninvasive marker of airway inflammation in asthma. The increased NO expression induced by inflammatory mediators in airways can be monitored easily in exhaled air from asthmatic children. Based on the relationship between the increased NO expression and eosinophilic airway inflammation, fractional exhaled nitric oxide (FeNO) measurements become an important adjunct...

Original Article
Fractional exhaled nitric oxide and forced expiratory flow between 25% and 75% of vital capacity in children with controlled asthma
Ji-Yong Yoon, Sung-Il Woo, Heon Kim, Yong-Han Sun, Youn-Soo Hahn
Clin Exp Pediatr. 2012;55(9):330-336.   Published online September 14, 2012
Purpose

Fractional exhaled nitric oxide (FeNO) and forced expiratory flow between 25% and 75% of vital capacity (FEF25-75) are not included in routine monitoring of asthma control. We observed changes in FeNO level and FEF25-75 after FeNO-based treatment with inhaled corticosteroid (ICS) in children with controlled asthma (CA).

Methods

We recruited 148 children with asthma (age, 8 to 16 years) who had maintained...

Expression of nitric oxide synthase isoforms and N-methyl-D-aspartate receptor subunits according to transforming growth factor-β1 administration after hypoxic-ischemic brain injury in neonatal rats
Hae Young Go, Eok Su Seo, Woo Taek Kim
Clin Exp Pediatr. 2009;52(5):594-602.   Published online May 15, 2009
Purpose : Transforming growth factor (TGF)-β1 reportedly increases neuronal survival by inhibiting the induction of inducible nitric oxide synthase (NOS) in astrocytes and protecting neurons after excitotoxic injury. However, the neuroprotective mechanism of TGF-β1 on hypoxic-ischemic (HI) brain injury in neonatal rats is not clear. The aim of this study was to determine whether TGF-β1 has neuroprotective effects via a...
Relationship between exhaled nitric oxide and pulmonary function test in children with asthma
Han-Seok Ko, Sung-Hoon Chung, Yong-Sung Choi, Sun-Hee Choi, Yeong-Ho Rha
Clin Exp Pediatr. 2008;51(2):181-187.   Published online February 15, 2008
Purpose : Asthma is characterized by reversible airway obstruction and bronchial hyperresponsiveness result from airway inflammation. Fraction of nitric oxide in expired air (FeNO) has recently been investigated as a noninvasive measure of airway inflammation. FeNO has been reported to correlate with induced sputum eosinophilia and methacholine challenge test that it is represent severity of asthma. The purpose of this...
Serum Nitric Oxide and Tumor Necrosis Factor-α Levels in Patients with Kawasaki Disease
Ji Hye Park, Jee Seon Shin, Young Mi Hong
Clin Exp Pediatr. 2005;48(7):772-778.   Published online July 15, 2005
Purpose : Kawasaki disease(KD) is a systemic panvasculitis that causes coronary artery lesions. KD is accompanied by immunoregulatory abnormalities. Nitric oxide(NO) can induce relaxation of blood vessels by activating guanylate cyclase in smooth muscle cells and high levels of NO may result in coronary artery lesions. We investigated tumor necrosis factor(TNF)-α and NO production before and after intravenous immunoglobulin(IVIG) therapy...
Serum and Cerebrospinal Fluid(CSF) Nitric Oxide, Macrophage Inflammatory Protein-1α and Lactoferrin Levels in Aseptic Meningitis
Young Seo, Jung Yeon Shim, Jae Won Shim, Deok Su Kim, Hye Lim Jung, Moon Soo Park
Clin Exp Pediatr. 2005;48(1):48-54.   Published online January 15, 2005
Purpose : The pathologic mechanisms of central nervous system(CNS) injuries in human meningitis are not yet completely understood. Recent studies indicate that the host inflammatory responses are as important in brain damage as the infecting organisms and toxins. There have been some reports on the relationship of nitric oxide(NO), macrophage inflammatory protein-1α(MIP-1α), and lactoferrin in bacterial meningitis, but few reports...
High Frequency Oscillatory Ventilation with Inhaled Nitric Oxide Combined Therapy in The Intractable Respiratory Failure Neonates
Mi Hyun Lee, Ji Eun Han, Sang Geel Lee
Clin Exp Pediatr. 2004;47(11):1167-1172.   Published online November 15, 2004
Purpose : Inhaled nitric oxide(iNO) has been known to improve oxgenation in newborns with persistent pulmonary hypertension(PPHN), but it's not clear that iNo treatment is effective in cases of acute, hypoxic respiratory failure and premature infants. In our study, high frequency oscillatory ventilation(HFV) with iNO combined therapy was tried in intractable respiratory failure neonates who showed no response to conventional...
Effect of Inhaled Nitric Oxide on Hemodynamics, Gas Exchange and Pulmonary Inflammation in Newborn Piglets with Escherichia coli Induced Septic Lungs
Yun Sil Chang, Sun Young Ko, Won Soon Park
Clin Exp Pediatr. 2003;46(8):777-783.   Published online August 15, 2003
Purpose : The aim of this study was to evaluate the effect of inhaled nitric oxide(iNO) on gas exchange, hemodynamics and pulmonary inflammation in newborn piglets with E. coli induced septic lung. Methods : Twenty three instrumented and ventilated piglets were randomized into three groups : CON(n=6), PCON(n=9), and PNO(n=8). In the piglets of the PCON and PNO groups, E. coli...
Exhaled Nitric Oxide Concentration in Children with Asthma and Allergic Rhinitis : Association with Atopy and Bronchial Hyperresponsiveness
Kyu Min Nah, Yang Park, Eun Kyeong Kang, Hee Kang, Young Yull Koh, Sun Wha Lee, Domyung Paek
Clin Exp Pediatr. 2003;46(3):284-290.   Published online March 15, 2003
Purpose : A new airway inflammatory marker, exhaled nitric oxide(ENO) has been reported to correlate with bronchial hyperresponsiveness(BHR) and atopy. The purpose of this study was to analyze the relationship of ENO with BHR or atopy in patients with asthma and with allergic rhinitis. Methods : The subjects consisted of 55 children with asthma, 17 with allergic rhinitis, and 14 healthy...
Characteristics of Seizures and Neuronal Nitric Oxide Synthase Expression of Hippocampus in Hyperthermia-Induced Seizures of Developing Rat
Doo-Kwun Kim, Dong-Keun Jung
Clin Exp Pediatr. 2002;45(5):629-636.   Published online May 15, 2002
Purpose : Our study was aimed to investigate the characteristics of seizures as well as to determine whether the expression of neuronal nitric oxide synthase expression(nNOS) of hippocampus has an affect in the hyperthermic seizure in developing rat. Methods : Hyperthermic seizures were repeatedly induced twice a week for four weeks in 20-day old Spraque-Dowley rats. Fifty two rats were used...
The Immunohistochemical Expression of Neuronal Nitric Oxide Synthase in Rat Hippocampus after Pentylenetetrazole-Induced Seizures
Doo-Kwun Kim, Tae-Jung Jang
Clin Exp Pediatr. 2001;44(12):1432-1440.   Published online December 15, 2001
Purpose : In order to determine the effect of neuronal nitric oxide synthase(nNOS) in seizure-related neuronal vulnerability of the hippocampus, the expression patterns of nNOS were examined in pentylenetetrazole(PTZ)-induced seizure groups and in PTZ seizure groups which were pretreated with nNOS inhibitors. Methods : Male Sprague-Dawley rats weighing 200-300 g were used in PTZ(40 mg/kg)-induced seizure experiments. A specific inhibitor, 50 mg/kg 7-nitroindazole(7-NI), and a...
The Weaning Method of Inhaled Nitric Oxide
Hyun Woo Lee, Jae Woong Lee, Sung Yeul Hyun, Ha Chang Lee, Chul Hyun Park, Kook Yang Park, Hyeon Su Yoo, Kyung Cheon Lee, Young Jin Jang
Clin Exp Pediatr. 2001;44(4):413-417.   Published online April 15, 2001
Purpose : Inhaled nitric oxide(iNO) is an excellent method for the postoperative pulmonary hypertension in congenital heart disease. But more detailed care is needed because of the development of rebound pulmonary hypertension after NO withdrawal. We performed this study in order to discontinue the iNO successfully by way of presenting the adequate weaning and supplying methods. Methods : Between January, 1998...
The Role of Nitric Oxide in Seizures Induced by Pentylenetetrazole
Jun Ho Kim, Doo Kwun Kim
Clin Exp Pediatr. 2000;43(10):1356-1363.   Published online October 15, 2000
Purpose : Nitric oxide(NO) is a highly reactive messenger molecule that is synthesized by nitric oxide synthase(NOS) in a number of tissues including the brain. Our aim was to examine the possible role of NO on pentylenetetrazole(PTZ)-induced seizure in rats as a proconvulsant or an anticonvulsant. Methods : Male Sprague-Dawley rats weighing 200-300g were used. PTZ(40mg/kg) was used to induce seizure....
Effects of Hyperthermia on Neuronal Nitric Oxide Synthase Expression after Cerebral Ischemia in Gerbils
Doo Kwun Kim, Duk Joon Suh
Clin Exp Pediatr. 1999;42(11):1542-1551.   Published online November 15, 1999
Purpose : This study was aimed to elucidate the effect of hyperthermia on neuronal nitric oxide synthase(nNOS) expression in both cerebral hemispheres after left common carotid artery occlusion in gerbils. Methods : Using Mongolian gerbils, cerebral ischemia was produced by occluding carotid artery for 1-4 hours. Rectal temperature was maintained at 36℃ for normothermia and 40℃ for hyperthermia by heating pad....
Case Report
Two Cases of Nitric Oxide Inhalation for Treatment of Severe Pulmonary Hypertension after Surgical Repair of Congenital Diaphragmatic Hernia
Yun Sil Chang, I-Seok Kang, Won Soon Park, Suk Koo Lee, Hun Hahk Kim, Heung Jae Lee
Clin Exp Pediatr. 1996;39(11):1611-1619.   Published online November 15, 1996
Nitric oxide, an endothelium-derived relaxing factor, is a selective pulmonary vasodilator. We have built and settled down the delivery system of nitirc oxide gas inhalation for the first time in Korea. Two newborn babies delvelped near fatal pulmonary hypertension after surgical repair of a congenital diaphragmatic hernia. All conventional therapeutic measures failed. So we decided to attempt to use of nitric oxide gas for...
Original Article
Studies on Mechanism of Vascular Hyporeactivity of Mesenteric Artery from Septic Rats
Man Chul Ha, Hee Ju Park, Ki Whan Hong
Clin Exp Pediatr. 1995;38(7):922-935.   Published online July 15, 1995
Purpose : Septic shock due to gram negative bacterial infection is characterized by vasodil-ation, hypotension, and myocardial depression due to the effect of lipopolysaccharide (LPS). In spite of extensive studies, the mechanisms for the vascular effects of endotoxemia are not clear. Recently, it has been proposed that nitric oxide (NO) synthesized from L-arginine by nitric oxide synthase contributes to the...
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