소아에서 비만이 운동 전후의 폐활량에 미치는 영향

박석원,김황민,김종수,차재국,이혜란,Park, Seok Won,Kim, Hwang Min,Kim, Jong Soo,Cha, Jae Kuk,Lee, Hae Ran 대한소아청소년과학회 2002 Clinical and Experimental Pediatrics (CEP) Vol.45 No.5

Purpose : The incidence of obesity has increased in Korea recently. Obesity leads to higher risks of hypertension, hyperlipidemia and insulin resistance. It also leads to risks of respiratory complications. This study was performed to see the effects of obesity on children's pulmonary functions and on developed bronchospasm after exercise loading according to their obesity degrees. Methods : 257 obese children and 150 non-obese children were enrolled. Obese children were divided into 3 groups by the obesity degrees. Pre- and post-exercise loading $FEV_1$(forced expiratory volume at one second), FVC(forced vital capacity) and PEFR(peak expiratory flow rate) were checked in all subjects. The percent predicted values of each parameter was compared according to obesity degrees and the differences between pre-exercise and post-exercise values. Results : The percent predicted value of $FEV_1$, FVC decreased only in the severe obesity group compared with those in the control group. However percent predicted PEFR declined according to obesity degrees. The percent predicted value of $FEV_1$, FVC and PEFR after exercise loading were much lower than those before exercise loading in all groups. Conclusion : As the degree of obesity was higher, the percent predicted value of pulmonary function was lower. And after exercise loading, as the degree of obesity was higher, the reduction of percent predicted value of pulmonary function was larger. Therefore the pulmonary function in obese children must be observed carefully. Further studies on the effects of pulmonary functions in obese children are necessary.

Amberlite IR-120를 사용한 숙신산의 화학적 전환과 촉매의 재 사용성

이병욱,김황민,김영운,김영준,Lee, Byong-Wook,Kim, Hwang-Min,Kim, Young-Wun,Kim, Yeong-Joon 대한화학회 2011 대한화학회지 Vol.55 No.6

숙신산을 시작물질로 Amberlite IR-120을 이용하여 다이옥틸숙시네이트와 무수숙신산을 합성했다. 양이온 교환 수지를 촉매로 사용했을 때, 숙신산과 옥탄올을 이용한 다이옥틸숙시네이트의 합성은 환류조건에서 18시간의 반응 시간이 요구되었고, 무수숙신산의 합성도 숙신산, Amberlite IR-120, isopropenyl acetate의 존재하에 반응을 진행하였을 때, 18 시간이상의 긴 반응 시간이 요구되었다. 그러나, 마이크로파를 이용하게 되면 반응시간은 10분 이내로 획기적으로 줄어 들었다. 80% 이상의 높은 수득률을 유지하는 상태로 촉매는 최소 4회 이상 재사용 할 수 있었다.

Cyclosporine에 의한 중추신경계 독성 1례

이도윤,남궁미경,김황민,임백근,Lee Do-Yoon,NamGoong Mee-Kyung,Kim Hwang-Min,Lim Baek-Keun 대한소아신장학회 1997 Childhood kidney diseases Vol.1 No.2

Cyclosporine is an immunosuppressant usually used to prevent renal transplantation rejection. Nephrotoxicity and hypertension are considered as the most frequent side effects of cyclosporine treatment. The neurotoxic effects of cyclosporine such as agitation, anxiety, delirium, depression and psychosis have recently been found. Methylprednisolone may increase as well plasma concentration of cyclosporine, which leads to side effects. Here we report a $Henoch-Sch\"{o}nlein$ nephritis patient treated with cyclosporine and methylprednisolone who has experienced psychosis including visual and auditory hallucination and convulsion.

소아 결핵 감염 진단에 있어서 결핵 특이항원 자극 Interferon-${\gamma}$ 분비능 측정의 진단적 유용성

순유진,임백근,김황민,남궁미경,차병호,어영,전진경,Soon, Eu-Gene,Lim, Baek-Keun,Kim, Hwang-Min,NamGoong, Mee-Kyung,Cha, Byung-Ho,Uh, Young,Chun, Jin-Kyong 대한결핵및호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.68 No.5

Background: $QuantiFERON^{(R)}$-TB Gold In Tube (QFT-G IT) has been used for diagnosing latent tuberculosis infection and active tuberculosis (TB) since 2007. However, there has not been enough data on QFT-G IT for universal use in children. In this study, we evaluated the clinical usefulness of the QFT-G IT in pediatric practice. Methods: We retrospectively reviewed the clinical records of 70 patients younger than 18 years of age who had taken QFT-G IT and had a tuberculin skin test (TST) between July 2007 and July 2009 at Wonju Christian Hospital. The subjects were divided into two groups, asymptomatic TB exposure group and disease group. Four patients who were taking immunosuppressants during the study period were excluded. Results: A total of 66 immunocompetent children were included in this study. Among 27 asymptomatic children who had contact histories of TB, 6 (22.2%) were found to be positive by QFT-G IT. Eleven (40.7%) and 5 (18.5%) children were found to be positive by TST with cutoff values of ${\geq}5mm$ and ${\geq}10mm$, respectively. Agreement was fair to good between QFT-G IT and TST (${\kappa}=0.59$: cutoff value ${\geq}5mm$, ${\kappa}=0.7$: cutoff value ${\geq}10mm$). In disease group, 14 patients (35.9%) were diagnosed with active tuberculosis, 8/14 (57.1%) were positive on TST and 9/14 (64.3%) on QFT-G IT. The positive rate of acid-fast bacilli smear, TB-polymerase chain reaction, and culture for tuberculosis was 11% (1/9), 27.3% (3/11) and 33.3% (3/9), respectively. Conclusion: Our data support that the QFT-G IT can be used as an additional diagnostic tool for latent and active tuberculosis infection in children.

소아 Henoch-Schölein purpura에서 전환성장인자-β 프로모터유전자의 유전학적 다형성과 신장침범의 관련성

이승호,지화영,김황민,예병일,Lee, Seung Ho,Jee, Hwa Young,Kim, Hwang Min,Yeh, Byung Il 대한소아청소년과학회 2008 Clinical and Experimental Pediatrics (CEP) Vol.51 No.5

Purpose : Several cytokines play important roles in the inflammatory process of Henoch-$Sch\ddot{o}lein$ Purpura (HSP). It is likely that transforming growth $factor-{\beta}$ ($TGF-{\beta}$) is involved in the pathogenesis of HSP. The purpose of this study is to investigate whether $TGF-{\beta}$ promoter polymorphism is associated with the renal involvement of childhood HSP. Methods : Thirty-four patients younger than 15 years, who had been diagnosed with HSP, as well as 27 controls, were examined. Patients and controls were genotyped for $TGF-{\beta}$ C-509T by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Results : The T allelic frequencies in patients and controls showed no difference (45% vs. 48.8%). No allele or genotype differences between the group of HSP group and control group were observed. The frequencies of $TGF-{\beta}$ 509 genotypes TT, TC, and CC were no different between patients and controls (26% vs. 22%). The TT genotype of polymorphism of the $TGF-{\beta}$ C-509T gene had no relation to the susceptibility of children to HSP and renal involvement in HSP. Conclusion : $TGF-{\beta}$ T allele may not be related to the susceptibility of children to HSP. The TT genotype of polymorphism of the $TGF-{\beta}$ C 509T gene does not appear to have an influence on renal involvement in childhood HSP.

학술 3 - 전십자인대 단열시 lateral suture 및 TTA(tibial tuberosity advancement)의 적용

정인성,장세웅,김황민,강은희,Jeong, In-Seong,Jang, Se-Ung,Kim, Hwang-Min,Gang, Eun-Hui 대한수의사회 2014 대한수의사회지 Vol.50 No.4

학술 3 - 골절 치료 2 - 잠금 금속판(Locking plate)의 임상적 적용

정인성,강은희,김황민,최재홍,Jeong, In-Seong,Gang, Eun-Hui,Kim, Hwang-Min,Choe, Jae-Hong 대한수의사회 2014 대한수의사회지 Vol.50 No.8

Rifampin으로 폐결핵 치료 중 발생한 혈소판 감소증 1례

박석원,조희숙,김황민,임백근,김종수,Park, Seok Won,Cho, Hee Suk,Kim, Hwang Min,Lim, Baek Keun,Kim, Jong Soo 대한소아감염학회 2000 Pediatric Infection and Vaccine Vol.7 No.2

Rifampin is a bactericidal antibiotic used primarily in the treatment of tuberculosis. The adverse effects of rifampin, though few, include dermatologic, gastrointestinal, and hepatic manifestations. Occasionally it produces a flu-like syndrome, interstitial nephritis, hemolytic anemia, and thrombocytopenia. These manifestations usually appear in patients who take the drug intermittently. We experienced a 13 year-old girl who developed thrombocytopenia during rifampin administration of daily dosage, therefore we report a brief review with the related literatures.

계절 인플루엔자: 단일기관 연구

최재원,조현준,김황민,한석,Choi, Jae Won,Cho, Hyun Jun,Kim, Hwang Min,Hahn, Seok 대한소아감염학회 2014 Pediatric Infection and Vaccine Vol.21 No.1

Purpose: The aim for this study was to investigate clinical manifestation of seasonal influenza A and B during the 2012 winter season in Wonju, South Korea. Their clinical and laboratorial characteristics and effect of oseltamivir were compared and analyzed. Methods: Children under the age of 18 years who visited the Wonju Severance Christian Hospital with fever or acute respiratory symptoms and who were diagnosed with influenza A or B by rapid antigen test from nasopharyngeal swab were selected for the study. The medical records of patients were retrospectively reviewed. Results: Influenza A was detected in 374 patients (83.7%), and influenza B in 72 (16.6%). The incidence of influenza A was highest in February (n=186), while that of influenza B was highest in March (n=36). The most common symptoms were fever (n=434, 97.1%) and cough (n=362, 81.0%). No significant differences were observed between influenza A and B in symptoms and laboratory data. Patients who had used oseltamivir within 2 days showed statistically lower admission rate, shorter admission duration, and lower incidence of pneumonia. Conclusion: This study found no statistical difference between influenza A and B, in symptoms, progression, and laboratory test, but those who were treated with oseltamivir given within 2 days of the onset of fever experienced more positive outcomes.

한국인 소아에서 실시간 중합효소연쇄반응으로 검출된 Epstein-Barr virus 바이러스혈증의 임상적 고찰

고일용,서진석,김황민,손준형,예병일,이택진,김동수,Ko, Il Yong,Suh, Jin Suk,Kim, Hwang Min,Sohn, Joon Hyung,Yeh, Byung-Il,Lee, Taek Jin,Kim, Dong Soo 대한소아감염학회 2007 Pediatric Infection and Vaccine Vol.14 No.2

Purpose : We investigated clinical characteristics of real-time PCR proven EBV viremia patients who were not serologically diagnosed but clinically suspected, and compared it to serologically proven EBV infected patients. Methods : The study population consisted of 45 patients, who were suspected acute EBV infection at Wonju Christian Hospital Department of Pediatrics, Yonsei University Wonju College of Medicine from Jan. 2004 to Dec. 2006. real-time PCR of cell free serum was performed to prove EBV viremia. Then we chose $102.5copies/{\mu}g$ DNA as a suitable cutoff level for EBV associated diseases. Results : There are 4 patients diagnosed as EBV infection by serologically and 15 patients diagnosed as EBV viremia by real-time PCR quantitative measurement. The most common presenting symptoms and signs of EBV viremia was fever in 11 cases (73%). Atypical lymphocytosis was found in 4 cases (27%). Increased AST, ALT levels were observed in 13 cases (87%), 12 cases (80%), respectively. We could diagnose 5 cases of EBV viremia younger than one year of age. They revealed clinical symptoms which could be found in EBV infection. The serologically diagnosed patients had hepatomegaly and splenomegaly in 3 cases (75%). All serologically confirmed patients have leukocytosis above $20,000/mm^3$, among them 2 cases (50%) had higher percentage (>15%) of atypical lymphocytes. The AST/ALT level above 50 IU/L were demonstrated in all cases. Conclusion : Serologically unproven real-time PCR EBV viremia patients revealed similar clinical findings with that of serologically proven EBV infected patients. So, it is meaningful to perform EBV real-time PCR for the diagnosis of EBV infection especially for the cases younger than 1 year of age.