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김유은 ( Yu Eun Kim ),이상수 ( Sang Su Lee ),김차영 ( Cha Young Kim ),이승훈 ( Seung Hun Lee ),임수진 ( Su Jin Lim ),조유지 ( Yu Ji Cho ),정이영 ( Yi Yeong Jeong ),김호철 ( Ho Cheol Kim ),황영실 ( Young Sil Hwang ),이종덕 ( Jong D 대한결핵 및 호흡기학회 2011 Tuberculosis and Respiratory Diseases Vol.71 No.4
Background: A chronic obstructive pulmonary disease (COPD) assessment test (CAT) has recently been developed as a short and simple method for assessing the quality of life in COPD patients. The object of this study was to assess the usefulness of the Korean version of the CAT for assessing COPD patients in an outpatient clinic. Methods: The study included 60 COPD patients in a stable state from an outpatient clinic. The authors investigated the frequency of acute exacerbation during aprevious year through reviewing medical records. We evaluated the spirometry test, a 6-min walk distance test, and obtained the MMRC dyspnea scale, the Korean version of the CAT, and the BODE index at the time of visit. To assess the usefulness of the CAT, correlations between the CAT and other methods were evaluated. Results: The mean age of patients was 68.3±8.6 years and 95% of patients were male. There was a significant correlation between the CAT score and FEV1% (r=?0.323, p=0.012), the frequency of acute exacerbation (r=0.292, p=0.024), the MMRC dyspnea scale (r=0.554, p<0.001), the BODE index (r=0.380, p=0.003), and 6 MWD (r= ?0.372, p=0.004). The mean CAT score increased according to the GOLD stage (stage 1, 10.7±4.5; stage 2, 13.1±7.9; stage 3, 16.3±6.2; stage 4, 16.5±14.8; p=0.746). Conclusion: The CAT was shown to be useful for the assessment of COPD severity. Therefore, the CAT is an easily applied and simple method for assessing COPD severity in an outpatient clinic.
김유은 ( Yu-eun Kim ),김기환 ( Gi-hwan Kim ) 한국전기전자재료학회 2022 전기전자재료학회논문지 Vol.35 No.6
As energy depletion and environmental pollution problems are intensified, research has been conducted actively on alternative energy sources, an eco-friendly and continuous available energy conversion system. So has been organic solar cells whose efficiency is improved to 18.32%. The photoactive layer inside the solar cell is composed of a donor and a acceptor, and the combination of materials capable of effectively exchanging electrons greatly affects the efficiency of the organic solar cell. Accordingly, various researches have been conducted to improve the efficiency, and the maximum efficiency could be achieved by a solar cell with high carrier generation and low charge recombination characteristics through the introduction of a non-fullerene acceptor and material reconstruction. Organic solar cells are still difficult to commercialize due to their efficiency limitations and light stability, but if a photoactive layer consisting of a donor capable of efficiently absorbing long-wavelength light and an acceptor capable of forming an appropriate energy level is designed, the efficiency of the organic solar cell will reach 20%.
결핵균과 비결핵성항산균 검출에 Real-time PCR의 유용성
윤은영 ( Eun Young Yun ),조수희 ( Su Hee Cho ),고세일 ( Se Il Go ),백종하 ( Jong Ha Baek ),김유은 ( You Eun Kim ),마정은 ( Jeong Eun Ma ),이기동 ( Gi Dong Lee ),조유지 ( Yu Ji Cho ),정이영 ( Yi Yeong Jeong ),김호철 ( Ho Cheol Kim 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.69 No.4
Background: The purpose of this study was to evaluate recently developed real-time polymerase chain reaction (PCR) assay kit to detect Mycobacterium tuberculosis (MTB) and nontuberculous mycobacteria (NTM) in respiratory specimens. Methods: We assessed the positive rate of the real-time PCR assay to detect MTB and NTM in 87 culture-positive specimens (37 sputum, 50 bronchial washing), which were performed real-time PCR by using Real-QTM MTB&NTM Kit from January 2009 to June 2009, at Gyeongsang University Hospital. To compare the efficacy with the TB-PCR assay, we evaluated 63 culture-positive specimens (19 sputum, 44 bronchial washing) for MTB or NTM, which were performed TB-PCR by using ABSOLUTETM MTB II PCR Kit from March 2008 to August 2008. Results: Among 87 specimens tested using real-time PCR, MTB and NTM were cultured in 58 and 29, respectively. The positive rate of real-time PCR assay to detect MTB was 71% (22/31) and 92.6% (25/27) in AFB stain-negative and stain-positive specimens. For NTM, the positive rate of real-time PCR was 11.1% (2/18) and 72.7% (8/11) in AFB stain-negative and stain-positive specimens. Among 63 specimens performed using TB-PCR, MTB and NTM were cultured in 46 and 17, respectively. The positive rate of TB-PCR was 61.7% (21/34) and 100% (12/12) in AFB stain-negative and stain-positive specimens. TB-PCR was negative in all NTM-cultured 17 specimens. Conclusion: TB/NTM real-time PCR assay is useful to differentiate MTB and NTM in AFB stain-positive respiratory specimens and it is as effective in detecting MTB with TB-PCR.
폐암환자에서 급성호흡부전과 장천공을 동반한 분선충 감염증
김현식 ( Hyeon Sik Kim ),김유은 ( Yu Eun Kim ),윤은영 ( Eun Young Yun ),주지현 ( Ji Hyun Ju ),마정은 ( Jeong Eun Ma ),이기동 ( Gi Dong Lee ),조유지 ( Yu Ji Cho ),김호철 ( Ho Cheol Kim ),이종덕 ( Jong Deok Lee ),황영실 ( Young Sil 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.68 No.1
Strongyloides stercoralis is an intestinal nematode that is a parasite to humans. The infecting filariform larvae of S. stercoralis enters the host body via the bloodstream, passes through the lungs, penetrates the alveoli, and then ascends the airway to transit down the esophagus into the small bowel. The infection can persist for decades without causing major symptoms and can elicit eosinophilia of varying magnitudes. Of note, this infection can also develop into a disseminated, often fatal, disease (hyperinfection) in patients receiving immunosuppressive corticosteroids. A 65-year-old man who was receiving corticosteroid therapy for the treatment of spinal stenosis was admitted to the emergency room with complaints of abdominal pain and severe dyspnea. We detected many S. stercoralis larvae in the sputum and in the bronchoalveolar-lavage sample collected by bronchoscopy. Here, we report a fatal case of strongyloidiasis with acute respiratory failure and intestinal perforation. In addition, we provide a brief review of the relevant medical literature.
안정된 만성 폐쇄성 폐질환환자와 급성 악화상태의 혈중 Osteopontin 농도 비교
마정은 ( Jeong Eun Ma ),이승훈 ( Seung Hun Lee ),김유은 ( Yu Eun Kim ),임수진 ( Su Jin Lim ),이승준 ( Seung Jun Lee ),정이영 ( Yi Yeong Jeong ),김호철 ( Ho Cheol Kim ),이종덕 ( Jong Deog Lee ),황영실 ( Young Sil Hwang ),조유지 ( Y 대한결핵 및 호흡기학회 2011 Tuberculosis and Respiratory Diseases Vol.71 No.3
Background: Osteopontin (Opn) is recognized as an important adhesive bone matrix protein and a key cytokine involved in immune cell recruitment and tissue repair and remolding. However, serum levels of osteopontin have not been evaluated in patients with chronic obstructive pulmonary disease (COPD). Thus, the aim of this study was to evaluate and compare the serum levels of osteopontin in patients experiencing COPD exacerbations and in patients with stable COPD. Methods: Serum samples were obtained from 22 healthy control subjects, 18 stable COPD patients, and 15 COPD with exacerbation patients. Serum concentrations of osteopontin were measured by the ELISA method. Results: Serum levels of osteopontin were higher in patients with acute exacerbation than with stable COPD and in healthy control subjects (62.4±51.9 ng/mL, 36.9±11.1 ng/mL, 30±11 ng/mL, test for trend p=0.003). In the patients with COPD exacerbation, the osteopontin levels when the patient was discharged from the hospital tended to decrease compared to those at admission (45±52.1 ng/mL, 62.4±51.9 ng/mL, p=0.160). Osteopontin levels significantly increased according to patient factors, including never-smoker, ex-smoker and current smoker (23±5.7 ng/mL, 35.5±17.6 ng/mL, 58.6±47.8 ng/mL, test for trend p=0.006). Also, osteopontin levels showed a significantly negative correlation with forced expiratory volume in one second (FEV1%) predicted in healthy controls and stable COPD patients (r=?0.389; p=0.013). C-reactive protein (CRP) was positively correlated with osteopontin levels in patients with COPD exacerbation (r=0.775; p=0.002). Conclusion: The serum levels of osteopontin increased in patients with COPD exacerbation and tended to decrease after clinical improvement. These results suggest the possible role of osteopontin as a biomarker of acute exacerbation of COPD.
Adalimumab으로 치료된 스테로이드 및 메소트렉세이트 저항성 호산구성 근막염 1예
이상수 ( Sang Su Lee ),김현옥 ( Hyun Ok Kim ),나재범 ( Jae Boem Na ),이종실 ( Jong Sil Lee ),서영선 ( Young Sun Suh ),천윤홍 ( Yun Hong Cheon ),강민규 ( Min Gyu Kang ),김유은 ( Yu Eun Kim ),이상일 ( Sang Il Lee ) 대한류마티스학회 2011 대한류마티스학회지 Vol.18 No.4
호산구성 근막염은 원인과 병인이 잘 알려지지 않은 미만성 근막염과 호산구 증가증을 보이는 드문 질환이다. 스테로이드 제제가 일차적인 치료제로 알려져 있으며 치료에 반응이 없는 경우 MTX와 같은 항류마티스 제제를 투여 할 수 있다. 하지만 이러한 약제에도 저항성을 보이는 경우 종양괴사인자 억제제가 치료에 사용될 수 있으며 치료 후 반응을 평가 하기 위해 자기공명영상이 유용할 수 있다. 이에 저자들은 스테로이드와 항류마티스 제제에 저항성을 보이는 호산구성 근막염 환자에게 종양괴사인자 억제제를 사용하여 치료 호전된 증례를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. Eosinophilic fasciitis (EF) is a rare fibrosing disorder characterized by painful swelling and induration of the limbs and trunk, characteristic histology with sclerosis and lymphocytic inflammation affecting the fascia. The cause and pathogenesis of EF are still unknown and current therapies include glucocorticoids with or without use of immunosuppressive agents. Recently, there have been several case reports documenting the efficacy of a TNF alpha inhibitor in EF following a steroid-resistant disease course. However, there has been no report on the experience in treatment of EF with a TNF alpha inhibitor in Korea. Hence, we report a case of steroid and methotrexate-resistant EF which was successfully treated with adalimumab, along with a review of the relevant articles.
기계환기가 요구된 중증 지역사회획득 폐렴에서 전신 스테로이드의 투여가 예후와 합병증의 발생에 미치는 영향
이승준 ( Seung Jun Lee ),이승훈 ( Seung Hun Lee ),김유은 ( You Eun Kim ),조유지 ( Yu Ji Cho ),정이영 ( Yi Yeong Jeong ),김호철 ( Ho Cheol Kim ),이종덕 ( Jong Deog Lee ),김장락 ( Jang Rak Kim ),황영실 ( Young Sil Hwang ) 대한결핵 및 호흡기학회 2012 Tuberculosis and Respiratory Diseases Vol.72 No.2
Background: This study is to evaluate the effect of systemic corticosteroid on the clinical outcomes and the occurrence of complications in mechanical ventilated patients with severe community-acquired pneumonia (CAP). Methods: We retrospectively assessed the clinical outcomes and complications in patients with severe CAP admitted to ICU between March 1, 2003 and July 28, 2009. Outcomes were measured by hospital mortality after ICU admission, duration of mechanical ventilation (MV), ICU, and hospital stay. Complications such as ventilator associated pneumonia (VAP), catheter related-blood stream infection (CR-BSI), and upper gastrointestinal (UGI) bleeding during ICU stay were assessed. Results: Of the 93 patients, 36 patients received corticosteroids over 7 days while 57 patients did not receive corticosteroids. Age, underlying disease, APACHE II, PSI score, and use of vasopressor were not different between two groups. In-hospital mortality was 30.5% in the steroid group and 36.8% in the non-steroid group (p>0.05). The major complications such as VAP, CR-BSI and UGI bleeding was significantly higher in the steroid group than in the non-steroid group (19.4% vs. 7%, p<0.05). The use of steroids and the duration of ICU stay were significantly associated with the development of major complications during ones ICU stay (p<0.05). Conclusion: Systemic corticosteroid in patients with severe CAP requiring mechanical ventilation may have no beneficial effect on clinical outcomes like duration of ICU stay and in-hospital mortality but may contribute to the development of ICU acquired complications.
신은경,김동운,김유은,나건,이기영 全南大學校 觸媒硏究所 1998 觸媒硏究 論文集 Vol.20 No.-
In this study, we prepared biodegradable polysaccharide films with pullulan, κ-carrageenan, curdlan and chitosan and measured physical properties and antibacterial activity All of polysaccharide films showed the high biodegradability but antibacterial activity on bacteria was only observed at chitosan film. The permeability of the gas(O₂and C0₂) of polysaccharide films besides chitosan film showed 50∼100 times lower than polyethylene(PE) film. Therefore, we prepared two film types to give low gas permeability and antibacterial property at polysaccharide film : one type was the physically mixed film(k-carrageenan +chitosan) and other type was the chitosan coated κ-carrageenan film. Chitosan coated κ-carrageenan film showed low gas permeability and antibacterial activity.