1.Assessment of leukotriene E4 in exhaled breath condensate as a marker of inflammation and therapeutic effect in allergic rhinitis children.
Byung Ok KWAK ; Yong Mean PARK
Allergy, Asthma & Respiratory Disease 2017;5(1):47-51
PURPOSE: Recent studies have shown that the cysteinyl leukotriene (cysLT) of exhaled breath condensate (EBC) could be predictive of inflammatory status and effectiveness of treatment in allergic disease. The aim of this study was to evaluate the inflammation and therapeutic effectiveness of cysLT in EBC in pediatric patients with allergic rhinitis (AR). METHODS: We enrolled 34 healthy children (median age, 4 years 10 months) and 67 AR children (median age, 5 years 1 month). All of the AR patients received intranasal steroid (fluticasone furoate) once daily for 2 weeks. After 2 week of fluticasone furoate treatment, they were classified into 2 groups: the fluticasone furoate (F) and montelukast (M) groups. We treated each group for another 8 weeks. To evaluate the therapeutic effectiveness, we used symptom score (SS) and EBC leukotriene E4 (LTE4). EBC samples were collected with RTube. Each parameter was checked at 0, 2, and 10 weeks of therapy. RESULTS: Most of the AR patients showed clinical improvement with 2- and 10-week fluticasone therapy (F group: 0-week SS, 5.6; 2-week SS, 3.6; 10-week SS, 2.1; P<0.01; M group: 0-week SS, 4.8; 2-week SS, 3.2; 10-week SS, 1.9: P<0.01). LTE4 levels were higher in AR patients than in control subjects (0 week: 87 pg/mL vs. 18 pg/mL) and were reduced after 2 weeks of fluticasone treatment (F group: 90→51.6 pg/mL, P<0.01; M group: 84→46.1 pg/mL, P<0.01). After 10 weeks of treatment, there was no significant difference in the LTE4 level between the F and M groups. CONCLUSION: LTE4 in EBC may be useful for evaluating inflammation and therapeutic effectiveness in patients with allergic rhinitis.
Child*
;
Fluticasone
;
Humans
;
Inflammation*
;
Leukotriene E4*
;
Rhinitis, Allergic*
2.A Case of Hyperacute Liver Failure from Mushroom Intoxication in a Child Treated with Penicillin.
Korean Journal of Pediatric Gastroenterology and Nutrition 2008;11(2):210-213
Hyperacute liver failure from mushroom intoxication in children is rare and has a low survival rate. We report a case of hyperacute liver failure from mushroom intoxication in a 29-month-old boy. The patient ingested a mushroom about three days prior to presentation. He was admitted to the hospital with vomiting, abdominal pain, seizures, and hematemesis. During the hospitalization the patient developed hepatic encephalopathy (stage IV-a), and a coagulopathy. He recovered fully with specific medication, Penicillin GK and N-acetylcysteine.
Abdominal Pain
;
Acetylcysteine
;
Agaricales
;
Child
;
Hematemesis
;
Hepatic Encephalopathy
;
Hospitalization
;
Humans
;
Liver
;
Liver Failure
;
Penicillins
;
Preschool Child
;
Seizures
;
Survival Rate
;
Vomiting
3.A Case of Hyperacute Liver Failure from Mushroom Intoxication in a Child Treated with Penicillin.
Korean Journal of Pediatric Gastroenterology and Nutrition 2008;11(2):210-213
Hyperacute liver failure from mushroom intoxication in children is rare and has a low survival rate. We report a case of hyperacute liver failure from mushroom intoxication in a 29-month-old boy. The patient ingested a mushroom about three days prior to presentation. He was admitted to the hospital with vomiting, abdominal pain, seizures, and hematemesis. During the hospitalization the patient developed hepatic encephalopathy (stage IV-a), and a coagulopathy. He recovered fully with specific medication, Penicillin GK and N-acetylcysteine.
Abdominal Pain
;
Acetylcysteine
;
Agaricales
;
Child
;
Hematemesis
;
Hepatic Encephalopathy
;
Hospitalization
;
Humans
;
Liver
;
Liver Failure
;
Penicillins
;
Preschool Child
;
Seizures
;
Survival Rate
;
Vomiting
4.A case of Plasmodium vivax malaria occurring during a school excursion to Pocheon-gun.
Byung Ok KWAK ; Sochung CHUNG ; Kyo Sun KIM
Korean Journal of Pediatrics 2010;53(1):85-88
Malaria caused by Plasmodium species is characterized by paroxysms of fever, chills, fatigue, anemia, and splenomegaly. Vivax malaria has lately re-emerged as an infectious disease and has exhibited high transmission rate in northern Gyeonggi-do province. We encountered a case of malaria in a child presenting with fever and thrombocytopenia who had recently made a school excursion to Pocheon-gun, Gyeonggi-do. The child was diagnosed with Plasmodium vivax malaria and treated with hydroxychloroquine and primaquine. Here, we present this case with a brief review of the literature.
Anemia
;
Child
;
Chills
;
Communicable Diseases
;
Fatigue
;
Fever
;
Humans
;
Hydroxychloroquine
;
Malaria
;
Malaria, Vivax
;
Plasmodium
;
Plasmodium vivax
;
Primaquine
;
Splenomegaly
;
Thrombocytopenia
5.The Association between Asthma and Invasive Pneumococcal Disease: A Nationwide Study in Korea.
Byung Ok KWAK ; Ji Tae CHOUNG ; Yong Mean PARK
Journal of Korean Medical Science 2015;30(1):60-65
The purpose of this study was to investigate the association between asthma and invasive pneumococcal disease (IPD) in Korea. A retrospective population-based cohort study was conducted using the Korean Health Insurance Review and Assessment database 2010-2011. The subjects included 935,106 (2010) and 952,295 (2011), of whom 398 (2010) and 428 (2011) patients with IPD were identified. There was significant difference in the prevalence of IPD in patients with and without asthma (0.07% vs. 0.02% in 2010 and 0.08% vs. 0.01% in 2011; P<0.001). After adjusting for age and gender, patients with asthma showed over a three-fold increased risk of IPD compared with patients without asthma (adjusted odds ratio [aOR] 3.90, 95% confidence interval [CI] 3.02-5.03 in 2010 / aOR, 5.44; 95% CI, 4.10-7.22 in 2011; P<0.001). These findings were also significant in children (aOR, 2.08; 95% CI, 1.25-3.45 in 2010; P=0.005 / aOR, 3.26; 95% CI, 1.74-6.11 in 2011; P<0.001). Although diabetes mellitus was also significantly associated with IPD, relatively low ORs compared with those of asthma were noted (aOR, 1.85; 95% CI, 1.35-2.54 in 2010 / aOR, 2.40; 95% CI, 1.78-3.24 in 2011; P<0.001). Both children and adults with asthma are at increased risk of developing IPD.
Adolescent
;
Adult
;
Aged
;
Asthma/complications/*epidemiology
;
Child
;
Cohort Studies
;
Diabetes Mellitus/epidemiology
;
Heptavalent Pneumococcal Conjugate Vaccine/immunology
;
Humans
;
Immunologic Deficiency Syndromes/complications/*epidemiology
;
Middle Aged
;
Pneumococcal Infections/complications/*epidemiology
;
Pneumococcal Vaccines/immunology
;
Prevalence
;
Republic of Korea/epidemiology
;
Retrospective Studies
;
Streptococcus pneumoniae/pathogenicity
;
Young Adult
6.The Effects of Angiotensin Converting Enzyme Inhibitor on Progressive Glomerular Sclerosis.
Mi Ok PARK ; Yong Jin KIM ; Hoon Kyu OH ; Chul Ho LEE ; Byung Hwa HYUN ; Jung Sik KWAK
Korean Journal of Pathology 1998;32(12):1058-1065
Almost all advanced glomerular diseases have glomerular sclerotic changes to varying degrees whatever causes their primary glomerular disease are. Pathogenesis of these sclerosis has been thought of as the hyperfiltration in the primary glomerulosclerosis due to development of glomerular hypertension in each insulted glomeruli. This background gave the theoretical bases for antihypertensive therapies for supporting chronic renal insufficient patients. Angiotensin converting enzyme (ACE) inhibitor, one of the antihypertensive drugs, has received attention recently for its effectiveness. The aims of this study determined the effects and mechanism of the ACE inhibitor, enalapril, on the glomerulosclerosis in FGS/NgaKist mice, which was an animal model of chronic renal failure by generating spontaneously heavy proteinuria and progressive glomerulosclerosis. Five-week-old FGS/NgaKist mice (n=38) were assigned to four groups. Group 1a (n=6) and group 2a (n=8) fed with a vehicle, were sacrificed at the end of 10 weeks and 15 weeks, respectively. Group 1b (n=12) and 2b (n=12) received enalapril (100 mg/L) in drinking water for 5 weeks and 10 weeks from 6th week of age respectively, and were sacrified on the same day as the control groups. Doses of enanapril were maintained to 2 mg/kg/day by measuring the amount of water consumption. In enalapril groups 1b and 2b, systemic blood pressure (74.7 14.0 mm Hg, 74.3 15.9 mmHg) were significantly lower than control group 2a (116.1 4.6 mmHg, P<0.001). Similarly, degree of proteinuria lowered in enalapril group 2b versus control group 2a (0% and 50.0%, P<0.001). Glomerulosclerosis percentage significantly decreased (P<0.001) (group 1b and 2b; 1.9 6.5, 5.6 7.0 vs control 1a and 2a; 32.8 15.5, 31.4 13.8). Glomerulosclerosis score also decreased (P<0.001) (group 1b and 2b; 0.02 0.08 vs control 1a and 2a; 0.48 0.12, 0.30 0.14). The immunofluorescent staining of enalapril groups showed negative for mesangial deposition of IgG, IgA, IgM, and C3 which were positive in control groups. Immunohistochemical staining with TGF-beta1 was negative in enalapril groups and sclerotic glomeruli both enalapril groups and control groups. These results support that the ACE inhibitor has a renoprotective effect on glomerulosclerosis not only by decreasing the blood pressure but also by suppressing the immune deposits on glomeruli.
Angiotensins*
;
Animals
;
Antihypertensive Agents
;
Blood Pressure
;
Drinking
;
Drinking Water
;
Enalapril
;
Humans
;
Hypertension
;
Immunoglobulin A
;
Immunoglobulin G
;
Immunoglobulin M
;
Kidney Failure, Chronic
;
Mice
;
Models, Animal
;
Peptidyl-Dipeptidase A*
;
Proteinuria
;
Sclerosis*
;
Transforming Growth Factor beta1
7.Evaluation of Growth Status Using Serum IGF-I and IGFBP-3 in Children with Subclinical Hypothyroidism.
Jae Wook BAE ; Byung Ok KWAK ; Sochung CHUNG
Journal of Korean Society of Pediatric Endocrinology 2011;16(1):31-37
PURPOSE: The aim of this study was to evaluate growth status using the insulin-like growth factor-I (IGF-I) and IGF-binding protein-3 (IGFBP-3) concentrations in children with subclinical hypothyroidism (SCH). METHODS: The study included 93 SCH patients (33 males and 60 females, age 8.1+/-1.9 years) and 94 healthy control subjects (31 males and 63 females, age 8.0+/-0.7 years). Patients' height and weight were measured, and their body mass index (BMI) and Z-scores were calculated. The relationship between growth parameters, including IGF-I and IGFBP-3 concentrations and thyroid functions (thyroid-stimulating hormone (TSH) and free thyroxine 4 (fT4) was explored. RESULTS: Although weight and BMI were greater in SCH patients, the Z-score of height, weight and BMI, and serum IGF-I and IGFBP-3 levels in SCH children were not significantly different compared to the control. In SCH patients, TSH showed a negative correlation with weight Z-scores (r=-0.23, P=0.028) and BMI Z-scores (r=-0.21, P=0.048). FT4 showed a positive correlation with IGFBP-3. CONCLUSION: The positive correlation of fT4 and IGFBP-3 and the negative relationship between TSH and weight and BMI Z-scores in SCH children suggest that subnormal thyroid functions could be related to growth impairment.
Body Mass Index
;
Child
;
Female
;
Humans
;
Hypothyroidism
;
Insulin-Like Growth Factor Binding Protein 3
;
Insulin-Like Growth Factor I
;
Male
;
Thyroid Gland
;
Thyroxine
8.Retinal Vessel Obstruction caused by Orbital Compression After Paranasal Sinus Surgery.
Byung Ok KIM ; Kyung Hyun JIN ; Hyung Woo KWAK
Journal of the Korean Ophthalmological Society 1995;36(1):130-134
Various ophthalmic complications can occur after intranasal sinus surgery due to the closed anatomic relationship between orbit and paranasal sinuses. The authors experienced a patient who had complained of sudden proptosis and loss of vision in his right eye 2 days after Caldwell-Luc operation from the otolaryngologic clinic. Fundoscopic finding showed cherry-red spot, scattered retinal hemorrhage, retinal edema, arteriovenous obstruction sign. Emergent decompression surgery was done, under the impression of retinal vessel obstruction caused by orbital compression, and his visual acuity improved moderately after this procedure.
Decompression
;
Exophthalmos
;
Humans
;
Orbit*
;
Papilledema
;
Paranasal Sinuses
;
Retinal Hemorrhage
;
Retinal Vessels*
;
Retinaldehyde*
;
Visual Acuity
9.Microalbuminuria in children with urinary tract infection.
Byung Ok KWAK ; Sochung CHUNG ; Kyo Sun KIM
Korean Journal of Pediatrics 2010;53(9):840-844
PURPOSE: Microalbuminuria is defined as increased urinary albumin excretion (30-300 mg/day) or microalbumin/creatinine ratio (30-300 mg/g) in a spot urine sample. Although microalbuminuria is a predictor of clinical nephropathy and cardiomyopathy, few studies have investigated microalbuminuria in children with urinary tract infection (UTI). METHODS: Therefore, we compared the spot urine microalbumin/creatinine ratio in pediatric UTI patients with that of control subjects. We investigated the correlation between the ratio in children with UTI and age, height, weight, blood pressure, glomerular filtration rate (GFR), hematuria, vesicoureteral reflux, renal parenchymal defect, and renal scar, and its predictability for UTI complications. RESULTS: We studied 66 patients (42 boys, 24 girls) and 52 healthy children (24 boys, 28 girls). The mean microalbumin/creatinine ratio in UTI patients was statistically significantly increased compared to the control group (340.04+/-321.36 mg/g (38.47+/-36.35 mg/mmol) in patient group vs. 225.68+/-154.61 mg/g (25.53+/-17.49 mg/mmol) in control group, P=0.0141). The mean value of spot urine microalbumin/creatinine ratio (384.70+/-342.22 mg/g (43.47+/-37.67 mg/mmol) in patient group vs. 264.92+/-158.13 mg/g (29.94+/-17.86 mg/mmol) in control group, P=0.0341) in 1-23 months age patient group showed statistically significant increase compared to control group. Microalbumin/creatinine ratio showed negative correlation to age (r=-0.29, P=0.0167), body surface area (BSA) (r=-0.29, P=0.0173) and GFR (r=-0.26, P=0.0343). The presence of hematuria (P=0.0169) was found to be correlated. CONCLUSION: The spot urine microalbumin/creatinine ratio in children with UTI was significantly greater than that in normal children, and it was positively correlated with GFR. This ratio is a potential prescreening and prognostic marker in UTI patients. Further studies are required to validate the predictability of microalbuminuria in pediatric UTI patients.
Blood Pressure
;
Body Surface Area
;
Cardiomyopathies
;
Child
;
Cicatrix
;
Glomerular Filtration Rate
;
Hematuria
;
Humans
;
Urinary Tract
;
Urinary Tract Infections
;
Vesico-Ureteral Reflux
10.Microalbuminuria in children with urinary tract infection.
Byung Ok KWAK ; Sochung CHUNG ; Kyo Sun KIM
Korean Journal of Pediatrics 2010;53(9):840-844
PURPOSE: Microalbuminuria is defined as increased urinary albumin excretion (30-300 mg/day) or microalbumin/creatinine ratio (30-300 mg/g) in a spot urine sample. Although microalbuminuria is a predictor of clinical nephropathy and cardiomyopathy, few studies have investigated microalbuminuria in children with urinary tract infection (UTI). METHODS: Therefore, we compared the spot urine microalbumin/creatinine ratio in pediatric UTI patients with that of control subjects. We investigated the correlation between the ratio in children with UTI and age, height, weight, blood pressure, glomerular filtration rate (GFR), hematuria, vesicoureteral reflux, renal parenchymal defect, and renal scar, and its predictability for UTI complications. RESULTS: We studied 66 patients (42 boys, 24 girls) and 52 healthy children (24 boys, 28 girls). The mean microalbumin/creatinine ratio in UTI patients was statistically significantly increased compared to the control group (340.04+/-321.36 mg/g (38.47+/-36.35 mg/mmol) in patient group vs. 225.68+/-154.61 mg/g (25.53+/-17.49 mg/mmol) in control group, P=0.0141). The mean value of spot urine microalbumin/creatinine ratio (384.70+/-342.22 mg/g (43.47+/-37.67 mg/mmol) in patient group vs. 264.92+/-158.13 mg/g (29.94+/-17.86 mg/mmol) in control group, P=0.0341) in 1-23 months age patient group showed statistically significant increase compared to control group. Microalbumin/creatinine ratio showed negative correlation to age (r=-0.29, P=0.0167), body surface area (BSA) (r=-0.29, P=0.0173) and GFR (r=-0.26, P=0.0343). The presence of hematuria (P=0.0169) was found to be correlated. CONCLUSION: The spot urine microalbumin/creatinine ratio in children with UTI was significantly greater than that in normal children, and it was positively correlated with GFR. This ratio is a potential prescreening and prognostic marker in UTI patients. Further studies are required to validate the predictability of microalbuminuria in pediatric UTI patients.
Blood Pressure
;
Body Surface Area
;
Cardiomyopathies
;
Child
;
Cicatrix
;
Glomerular Filtration Rate
;
Hematuria
;
Humans
;
Urinary Tract
;
Urinary Tract Infections
;
Vesico-Ureteral Reflux