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윤현아 ( Hyun Ah Yoon ),최석렬 ( Seok Reyol Choi ),이종훈 ( Jong Hun Lee ),장진석 ( Jin Seok Jang ),백양현 ( Yang Hyun Baek ),이정민 ( Jeong Min Lee ),김민식 ( Min Sik Kim ) 대한내과학회 2011 대한내과학회지 Vol.80 No.5
Glomus tumors originate in modified vascular smooth muscle cells and are most commonly found in the dermis or subcutis but are rarely observed in the stomach. We report three cases of patients who presented with incidental findings of subepithelial tumors in the stomach. One patient showed a positive cushion sign, and the others showed negative cushion signs. Endoscopic ultrasonography (EUS) demonstrated sharply demarcated hypoechoic tumors with internal hyperechoic spots in the fourth layer of the gastric wall and several hypoechoic halos around the tumors. Contrast-enhanced abdominal computerized tomography (CT) showed homogeneous high enhancement of tumors up to the delayed scan, and one case showed calcification in the tumor. For treatment, laparoscopic wedge resections were performed. Histological and immunochemical analysis of the tumor cells were compatible with glomus tumors. These characteristic findings in EUS and CT seem to be useful for the diagnosis of gastric glomus tumors.
급성췌장염의 중증도 예측에 대한 혈청 Procalcitonin의 효용성 및 절단값
우수미 ( Su Mi Woo ),노명환 ( Myung Hwan Noh ),김병근 ( Byung Geun Kim ),형건덕 ( Chien Ter Hsing ),한지선 ( Ji Sun Han ),유승희 ( Seung Hee Ryu ),서정민 ( Jeong Min Seo ),윤현아 ( Hyun Ah Yoon ),장진석 ( Jin Seok Jang ),최석렬 ( 대한소화기학회 2011 대한소화기학회지 Vol.58 No.1
Background/Aims: The aim of this study is to assess serum procalcitonin (PCT) for early prediction of severe acute pancreatitis compared with multiple scoring systems and biomarkers. Methods: Forty-four patients with acute pancreatitis confirmed by radiological evidences, laboratory assessments, and clinical manifestation were prospectively enrolled. All blood samples and image studies were obtained within 24 hours of admission. Results: Acute pancreatitis was graded as severe in 19 patients and mild in 25 patients according to the Atlanta criteria. Levels of serum PCT were significantly higher in severe acute pancreatitis (p=0.001). The accuracy of serum PCT as a predicting marker was 77.3%, which was similar to the acute physiology and chronic health examination (APACHE)-II score, worse than the Ranson score (93.2%) and better than the Balthazar CT index (65.9%). The most effective cut-off level of serum PCT was estimated at 1.77 ng/mL (AUC=0.797, 95% CI=0.658-0.935). In comparision to other simple biomarkers, serum PCT had more accurate value (77.3%) than C-reactive protein (68.2%), urea (75.0%) and lactic dehydrogenase (72.7%). Logistic regression analysis revealed that serum PCT has statistical significance in acute severe pancreatitis. Assessment of serum PCT levels and length of hospital stay by simple linear regression analysis revealed effective p-value with low R square level, which could make only possibilty for affection of serum PCT to admission duration (r2=0.127, p=0.021). Conclusions: Serum PCT was a promising simple biomarker and had similar accuracy of APACHE-II scores as predicting severity of acute pancreatitis. (Korean J Gastroenterol 2011;58:31-37)
송정은(Jeong Eun Song),심초록(Cho Rok Shim),이유정(Yu Jung Lee),고현아(Hyun Ah Ko),윤현(Hyeon Yoon),이동원(Dong Won Lee),강길선(Gil Son Khang) 한국고분자학회 2013 폴리머 Vol.37 No.3
헤스페리딘은 혈관 순환계 보호 효과, 항암 효과, 항산화 효과, 항염증 효과 등의 작용이 있다고 알려져 있다. 본 연구에서는 헤스페리딘을 함유한 poly(lactic-co-glycolic acid)(PLGA) 필름을 조직공학적 세포담체로 이용하고 생체 내/외의 실험을 통하여 헤스페리딘과 염증 반응의 상관관계를 알아보고자 하였다. 세포담체에서의 세포의 증식 과 부착을 확인하고자 PLGA/헤스페리딘 필름에 세포(RAW 264.7, NIH/3T3)를 파종하여 1, 3일 후에 MTT와 SEM 을 통하여 분석하였다. 또한 항산화 효과와 염증 완화 효과를 알아보고자 ELISA, RT-PCR, FACS 등을 평가한 결 과 PLGA 필름보다는 헤스페리딘이 첨가된 PLGA 필름에서 염증 반응이 감소하는 것을 확인하였다. In vivo 실험 에서도 헤스페리딘이 PLGA에 의해 유도된 염증세포와 섬유피막 축적을 감소시켜 헤스페리딘의 항염증 효과를 볼 수 있었다. 이 실험 결과 PLGA 필름보다는 PLGA/헤스페리딘 필름에서 염증 반응이 감소함을 확인하였다. Hesperidin (Hes) has known to having some functions like protection of blood circulatory system, anti-tumor effect, antioxidant effect and anti-inflammatory effect. The goal of this study is to demonstrate the relationship between Hes and inflammatory through in vitro and in vivo studies using poly(lactic-co-glycolic acid) (PLGA) film including Hes as a tissue engineered scaffold. To confirm the proliferation of cells on fabricated scaffold, cells (RAW 264.7 and NIH/ 3T3) were seeded on PLGA/Hes film then analyzed with MTT and SEM at 1 and 3 days after seeding. The results from ELISA, RT-PCR, and FACS for anti-oxident and anti-inflammatory effect showed that inflammatory response of PLGA/ Hes film decreased more than that of PLGA film. Also, in vivo result confirmed that inflammatory response by implanted PLGA/Hes film decreased more comparing with PLGA film. This is because of anti-inflammatory effect of Hes reducing induced inflammatory cell and accumulation of fibrous capsule. The results showed that PLGA/Hes film`s capacity on reducing inflammatory is better than PLGA film because of Hes.