배뇨 방광 요도 조영술 시행 후 발생하는 요로 감염에 대한 고찰

류정민,안요한,이소희,최현진,이범희,강희경,하일수,정해일,최용,Ryu, Jung-Min,Ahn, Yo-Han,Lee, So-Hee,Choi, Hyun-Jin,Lee, Beom-Hee,Kang, Hee-Gyung,Ha, Il-Soo,Cheong, Hae-Il,Choi, Yong 대한소아신장학회 2008 Childhood kidney diseases Vol.12 No.2

목 적 : 방광 요관 역류(VUR)를 진단하기 위해서는 배뇨 방광 요도 조영술(VCUG)을 시행하여야 한다. VCUG의 부작용으로 요로 감염이 발생할 수 있는 것이 잘 알려져 있는데, 본 연구에서는 이러한 VCUG 후 요로 감염에 대하여 고찰하여 이의 예방을 위하여 사용한 항생제의 효과를 비롯한 VCUG 후 요로 감염의 위험요소를 알아보고자 하였다. 방 법 : 2007년 1월부터 12월까지 1년동안 본원에서 VCUG를 시행한 284명의 어린이(남:여 195:89, 평균 나이 4.1$\pm$3.6세)를 대상으로 후향적으로 의무기록을 분석하였다. VCUG 시행 당시의 항생제 사용 상황에 따라 대상군을 항생제 미사용군, 예방적 항생제군, VCUG 용 항생제군, 치료 항생제군으로 나누어 항생제의 효과를 분석하였다. 결 과 : VCUG를 시행한 284중 7명(남:여 6:1, 평균 연령 2.8$\pm$3세)의 환아에서 VCUG 후 요로 감염이 발생하였다(요로 감염 발생률 2.5%). 그 중 6명은 VUR이(5명 high-grade VUR), 다른 1명은 MCDK가 있었다. 통계적으로 유의한 VCUG 후 요로 감염의 위험요소는 high-grade VUR이었으며, 성별, 연령(1세 미만과 1세 이상), 최근 요로 감염력, VUR 유무는 유의하지 않았다. VCUG 후 요로 감염 빈도는 예방적 항생제군에서 유의하게 높았다. 대상군을 VUR이 없는 경우와 VUR이 있는 VUR군, high-grade VUR군으로 나누어 각각 분석하였을 때 항생제 사용 여부와 VCUG용 항생제 사용 여부는 VCGU후 요로 감염 발생률에 유의한 차이를 가져오지 않았다. 결 론: VCUG 후 요로 감염의 위험인자는 high-grade VUR이었으며, 이번 연구의 대상군에서 항생제 사용에 의한 VCUG 후 요로 감염의 예방효과는 관찰되지 않았다. Purpose : Voiding cystourethrography(VCUG) is required to detect vesicoureteral reflux(VUR), which may manifest as urinary tract infection(UTI) in children. It is well known that VCUG can cause UTI(post-VCUG UTI). In this study, risk factors for post-VCUG UTI and the preventive effect of antibiotics against this complication of VCUG were explored. Methods : Medical records of 284 patients who underwent VCUG at our hospital in 2007 were reviewed retrospectively. The incidence of post-VCUG UTI and risk factors for post-VCUG UTI, and the impact of antibiotic use on prevention of post-VCUG UTI were evaluated. According to antibiotics usage, we divided the enrolled patients into 4 groups of noantibiotics group, prophylactic antibiotics group(prophylactic antibiotics having been used before), antibiotics-for-VCUG group(antibiotics added for VCUG) and antibiotics-for-treatment group(treatment dose of antibiotics). Results : Seven of 284 children(2.5%) developed UTI after they underwent VCUG. Highgrade(grade$\geq$III) VUR was the only statistically significant risk factor(odds ratio[OR] 6.266, P=0.026) for post-VCUG UTI, while sex, age, and other anomalies of urinary system were not significant. Five post-VCUG UTI cases belonged to prophylactic antibiotics group. Antibiotics use (three groups using antibiotics vs. no-antibiotics group) or addition of antibiotics for VCUG (antibiotics-for-VCUG vs. other groups) did not have any effect on prevention of post-VCUG UTI. Conclusion : The risk factor for post-VCUG UTI was high-grade VUR. Antibiotics use did not prevent post-VCUG UTI in this study.

급성 신부전을 동반한 발작 야간 혈색소뇨증 2례

류정민,안요한,이소희,최현진,이범희,강희경,강형진,신희영,하일수,정해일,안효섭,최용,Ryu, Jung-Min,Ahn, Yo-Han,Lee, So-Hee,Choi, Hyun-Jin,Lee, Beom-Hee,Kang, Hee-Gyung,Kang, Hyoung-Jin,Shin, Hee-Young,Ha, Il-Soo,Cheong, Hae-Il,Ahn, Hyo-Se 대한소아신장학회 2008 Childhood kidney diseases Vol.12 No.2

Paroxysmal nocturnal hemoglobinuria(PNH) is an acquired hematologic disorder characterized by intravascular hemolysis, nocturnal hemoglobinuria, thrombotic events and bone marrow failure. It rarely occurs in children and can be complicated by acute renal failure(ARF). Here, we present two cases of ARF complicating PNH which has not been reported yet in Korean children. We suggest that PNH should be considered in differential diagnosis of ARF in children associated with intravascular hemolysis. PNH는 혈관내 용혈, 야간 혈색소뇨, 혈전증, 골수부전을 특징으로 하는 후천적 질환이며 소아에서는 매우 드물게 발생한다. 급성 신부전은 PNH의 합병증으로 알려져 있지만 우리나라 소아에서의 보고는 아직 없었다. 저자들은 소아에서 PNH로 인한 급성 신부전을 경험하였기에 이를 보고하며 용혈을 동반한 소아의 급성 신부전의 감별 진단에서 PNH가 포함되어야 한다고 생각한다.

신축공동주택의 실내공기 중 카보닐화합물의 방출특성에 관한 연구

류정민 ( Jung Min Ryu ),조태진 ( Tae Jin Cho ),장성기 ( Seong Ki Jang ),손부순 ( Bu Soon Son ) 한국환경과학회 2010 한국환경과학회지 Vol.19 No.7

The study is about variations in Carbonyl compounds concentration within apartment buildings according to pre-residence and residence. We consecutively investigated indoor air pollutants in 120 households in 6 cities at pre-residence and residence. Carbonyl compounds were collected using the 2,4-DNPH cartridge and were analyzed using HPLC. The carbonyls concentration of indoor air in the new apartments before occupation measured formadlehyde(76.0μg/m3), acetone(85.9μg/m3), acetaldehyde(13.8μg/m3). The carbonyls concentration of indoor air in the new apartments after occupation measured formadlehyde(233.1μg/m3), acetone(128.9μg/m3), acetaldehyde(29.8μg/m3), respectively. As a result, the mean concentration of carbonyl compounds within the pre-occupancy stage was lower than those of residence.

The Processing of Ambiguous Verbs in School-Aged Children and Adults

류정민(Jung Min Ryu),황민아(Min a Hwang),고선희(Sun hee Ko) 한국언어청각임상학회 2018 Communication Sciences and Disorders Vol.23 No.1

배경 및 목적: 글을 이해하기 위해서는 다양한 의미 정보들을 탐색하게 되는데, 이때 문맥과 관련이 있는 의미는 촉진하고 관련이 없는 의미는 억제하는 과정을 거치게 된다. 따라서 본 연구에서는 고학년 아동들이 다의동사의 의미를 처리함에 있어 성인과 어떠한 차이를 보이는지 알아보고자 하였다. 방법: 본 연구는 초등학교 5-6학년 아동 25명과 성인 17명을 대상으로 하였다. 의미 판단 과제를 사용하여 다의어가 포함된 점화 문장과 목표 문장이 말이 되는지 여부를 판단하도록 하여 반응정확도와 반응시간을 측정하였다. 이 과제는 점화 문장과 목표 문장에 포함된 다의동사가 같은 의미로 사용된 의미일치조건과 점화 문장과 목표 문장에 포함된 다의동사가 다른 의미로 사용된 의미불일치조건으로 나뉜다. 결과: 아동들과 성인들 모두 의미일치조건보다 의미불일치조건에서 낮은 정확도와 느린 반응속도를 보였고, 아동들이 성인에 비해 모든 조건에서 낮은 정확도와 느린 반응속도를 보였다. 그러나 아동들의 경우 유독 의미불일치조건에서의 반응정확도가 성인에 비해 현저히 낮아짐을 확인할 수 있었다. 논의 및 결론: 아동들은 성인과 비교하여 전반적으로 읽기 이해 능력이 미숙하기는 하지만 문맥을 활용하여 의미를 처리하려는 경향은 성인과 유사한 패턴을 보이는 반면 문맥과 관련이 없는 불필요한 정보를 억제하는 데는 상대적으로 어려움을 보이는데 이 같은 특성이 아동들의 읽기 이해 실패의 원인이 될 것이다. Objectives: When we read texts, it is necessary to access the meanings of various words. During this process, the meanings related to the context are facilitated, and the meanings unrelated to that context are suppressed. This study investigated whether children differ from young adults in the processing of ambiguous verbs. Methods: This study was conducted with 25 children in 5th to 6th grade and 17 young adults. Response accuracy and reaction time were measured using a sensicality judgment task, where the participant judges if a sentence makes sense, or is nonsense, after reading it. This task was divided into consistent and inconsistent conditions depending on the consistency of meaning of ambiguous verbs in the priming and the target sentences. Results: Both children and adults showed lower accuracy and slower response times in the inconsistent condition than in the consistent condition. Children showed lower accuracy and slower response times than adults in both conditions. Children showed remarkably low accuracy in the inconsistent condition. Conclusion: Children performed poorly compared to adults in reading comprehension, but tended to use contexts to process word meanings like adults. However, they showed difficulty suppressing information irrelevant to the context of sentences. It means that premature suppression ability can cause failures in reading comprehension for children.

흑두 추출물에 의한 견직물의 염색성

류정민(Jung Min Ryu),전영실(Young Sil Jeon),김인회(In Hoi Kim),남성우(Sung Woo Nam) 한국염색가공학회 2005 韓國染色加工學會誌 Vol.17 No.5

AbPS 활동에서 만 4세 유아의 그림창의성의 변화

류정민(Ryu, Jung Min),유연옥(Yu, Younoak) 계명대학교 생활과학연구소 2013 科學論集 Vol.39 No.-

This study was conducted to verify the transformation 4-year-old children’s figural creative ability in Activities of AbPS. The research question focused on the transformation of frequency by sub-factors creativity type according to class times, and the transformation of creative expression in individual worksheets. The subjects of this study were 34 4-year-olds who comprised of the experimental and control groups at two nursery schools in D city. The tools were the Korean-version TTCT(figure) Standard Creativity Test A and B type. The experimental group was surveyed 25 times for 13 weeks. The collected data was carried out using χ² test was carried out for transformation of frequency by sub-factors creativity type according to class times. The transformations shown in individual worksheets were used as statistical methods in analyzing the qualitative changes. The results of this study indicated that AbPS was effective for increasing figural creativity ability of children. An inappropriate response : Type 1 was reduced and appropriate response : Type 2 and very appropriate response : Type 3 were increased in transformation of frequency by sub-factors creativity type according to class times. There were positive transformations in creative expression in individually detailed and represented what they wanted to express. In emotional expressions, they drew the appropriate and in-depth pictures that matched the themes. These results show that AbPS is effective on improving children’s figural creative ability.

로하스 트렌드를 위한 천연 염색 의류 디자인 연구

류정민(Ryu Jung-Min) 한복문화학회 2008 韓服文化 Vol.11 No.1

This study Inquired Into specific concept of LOHAS and watched a characteristic of the LOHAS In contemporary fashion trend. To proceed natural dyeing In the LOHAS method and measured stainability and functionality of dyeing fabrics. Made clothing as the dyeing textiles that a stainability and functionality results are excellent. When an effect of dyeing textiles for a human body Into consideration, select and made the five articles of clothing for spring & summer that were considered skin contact area very wide. There again, considered an expectation about efficacy of natural dyeing textiles. Therefore, through this study tried to design development direction of LOHAS well-being fashion In domestic market which used competitive natural dyeing textiles. Finally, there is enough value to study at the current viewpoints living In the well-being the times that the study about natural dyeing for a LOHAS well-being trend. To have seen to long term eyes, a large of the study IS necessary which the natural dyeing there being utility and functionality for a well-being trend.

랫드에서 PMMA와 Cross-Linked Dextran 혼합물의 생체 안전성 및 부피 효과에 대한 연구

장민우 ( Min Woo Jang ),진부갑 ( Bu Kab Jin ),이상훈 ( Sang Hun Lee ),박재홍 ( Jae Hong Park ),류정민 ( Jung Min Ryu ),윤승필 ( Seung Pil Yun ),박성원 ( Sung Won Park ),김형석 ( Heyong Seok Kim ),문창종 ( Chang Jong Moon ),서국현 한국조직공학·재생의학회 2010 조직공학과 재생의학 Vol.7 No.1

This study examined bio-safety and volume-related effect of the mixture of polymethylmethacrylate (PMMA) and Cross-linked Dextran as a soft tissue augmentation. To examine bio-safety and volume-related effect of the mixture of PMMA and Cross-linked Dextran in rat, gross, hematological, and pathohistological examinations were performed in comparison with CRM (R) DX (Cross-linked hyaluronic acid sodium salt, Dextranomere; commercial product) and saline. During the experimental period, there was no dead rats and scratching behavior which is a most common symptom when rejecting foreign body was observed. The volume of injected mixture was maintained sufficiently. Complete blood count(CBC) finding indicated that there were no significant differences in the number of inflammatory cells between control and experimental group. In addition, the parameters of hepatic toxicity (aspartate aminotransferase: AST, alanine transaminase: ALT, alkaline phosphatase: ALP, γ-glutamyl transpeptidase: γ- GTP, lactate dehydrogenase: LDH), renal toxicity (creatinine, blood urea nitrogen: BUN, cholesterol, albumin: ALB, phosphorus), and other organ toxicity (calcium, triglyceride, and creatine phosphokinase: CPK) using serum biochemical analysis did not show the significant differences between the control and experimental group, suggesting that systemic toxicity was not found in liver, kidney, and other organs. Histopathological findings indicated that the subcutaneous tissue had red color microsphere which capsulated by collagen near the injection site. Furthermore, the infiltration of inflammatory cells were not observed in the injected sites of all experimental groups. In conclusion, the mixture of PMMA and Cross-linked Dextran can be a safe substance for soft tissue augmentation maintaining tissue volume.

비산단지역 환경오염 수준 및 주민의 생체지표 모니터링

김대선,안승철,류정민,유승도,Kim, Dae-Seon,Ahn, Seung Chul,Ryu, Jung Min,Yu, Seung Do 한국환경보건학회 2012 한국환경보건학회지 Vol.38 No.6

Objectives: The main purpose of this study is to produce background data which can be compared with data on vulnerable areas such as industrial complexes in Ulsan, SihwaBanwol, Gwangyang, Yeosu, Pohang, Cheongju and Daesan in Korea. Methods: This study was performed on 1,007 local residents in Gangneung using personal questionnaires and medical check-up. Environmental pollutants including heavy metals in blood and urine were analyzed and the results are as follows. Results: According to the results of medical check-up, 705 subjects were "Normal (A and B)", 232 subjects were "Disease doubtful (R1)" and 70 subjects were "High blood pressure or Diabetes doubtful (R2)". Regarding geometric mean concentration, blood lead was 1.57 ${\mu}g/dL$, urine cadmium was 0.82 ${\mu}g/g-cr$, urine mercury was 0.98 ${\mu}g/g-cr$ and urine arsenic was 15.78 ${\mu}g/g-cr$. In the analysis of 11 kinds of VOCs in blood, vinyl chloride, 1,3-butadiene and dichloroethylene were not detected, while the detection rate of other chemicals was above 70% except chloroform(49.7%) and trichloroethylene(19.0%). In analysis of 16 kinds of PAHs in blood, 10 kinds showed more than 80% in detection rate. Also, detection rate of 4 kinds of PCBs in blood ranged 52 to 78%. Conclusions: Compared with industrial compelxes, the concentration of blood lead was lower, while urine cadmium and mercury levels were similar. Also, urine arsenic ranged at a significant level. Further study is required to find the cause of regional differences in concentrations of environmental pollutants.

거주기간 증가에 따른 신축 공동주택의 실내오염도 변화추이

장성기(Seong Ki Jang),류정민(Jung Min Ryu),서수연(Soo Yun Seo),임정연(Jung Yeon Lim),이우석(Woo Seok Lee) 한국분석과학회 2007 분석과학 Vol.20 No.6

신축공동주택의 실내공기질에 영향을 미치는 휘발성유기화합물 및 카보닐화합물의 농도와 입주후 거주기간에 따른 오염도 변화추이를 파악하고자 입주 후 신축 공동주택 120세대를 대상으로 실내공기 오염도를 조사하였다. 신축 공동주택 입주 후 TVOC (Total Volatile Organic Compounds; TVOCs)평균농도는 688.61 ㎍/㎥으로 나타났으며, 포름알데히드, 톨루엔, m, p-자일렌, 아세톤, 에틸벤젠이 158.56 ㎍/㎥, 146.58 ㎍/㎥, 69.28 ㎍/㎥, 63.80 ㎍/㎥, 29.65 ㎍/㎥의 순으로 높게 나타났다. 또한, 대부분의 실내오염물질들은 입주 후 거주기간이 증가함에 따라 평균농도가 감소하는 경향을 나타내었으나, d-리모넨의 경우 입주 후 2개월에서 10개월까지 지속적으로 증가하는 것으로 나타났다. 또한, 톨루엔, 에틸벤젠, m, p, o-자일렌 등의 주요오염물질이 전체 VOCs에서 차지하는 비율은 38.8%로 나타났으며, 거주기간에 증가함에 따라 구성비율이 감소하는 것으로 나타났다. This study is for investigation of indoor conditions with air contamination after occupation 120 households in brand-new apartments by measuring the concentration of VOCs and carbonyl compounds. It has been found that TVOC (total volatile organic compounds; TVOCs) were 688.61 ㎍/㎥ after moving in. And formaldehyde, toluene, m, p-xylene, acetone and ethylbenzene were 158.56 ㎍/㎥, 146.58 ㎍/㎥, 69.28 ㎍/㎥, 63.80 ㎍/㎥ and 29.65 ㎍/㎥, respectively. The mean concentrations of indoor air pollutants tend to decrease along an increase dwelling period. But, the mean concentration of d-limonene increased from 2 months to 10 months. Also, toluene, ethylbenzene, m, p, o-xylene amounted to 38.8 % among VOCs studied, this ratio tend to decrease along with and increased dwelling period.