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Vitamin D Promotes Odontogenic Differentiation of Human Dental Pulp Cells via ERK Activation
우수미,임회순,정경이,김선미,김원재,정지연 한국분자세포생물학회 2015 Molecules and cells Vol.38 No.7
The active metabolite of vitamin D such as 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) is a well-known key regulatory factor in bone metabolism. However, little is known about the potential of vitamin D as an odontogenic inducer in human dental pulp cells (HDPCs) in vitro. The purpose of this study was to evaluate the effect of vitamin D3 metabolite, 1α,25(OH)2D3, on odontoblastic differentiation in HDPCs. HDPCs extracted from maxillary supernumerary incisors and third molars were directly cultured with 1α,25(OH)2D3 in the absence of differentiation-inducing factors. Treatment of HDPCs with 1α,25(OH)2D3 at a concentration of 10 nM or 100 nM significantly upregulated the expression of dentin sialophosphoprotein (DSPP) and dentin matrix protein1 (DMP1), the odontogenesis-related genes. Also, 1α,25(OH)2D3 enhanced the alkaline phosphatase (ALP) activity and mineralization in HDPCs. In addition, 1α,25(OH)2D3 induced activation of extracellular signal-regulated kinases (ERKs), whereas the ERK inhibitor U0126 ameliorated the upregulation of DSPP and DMP1 and reduced the mineralization enhanced by 1α,25(OH)2D3. These results demonstrated that 1α,25(OH)2D3 promoted odontoblastic differentiation of HDPCs via modulating ERK activation.
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)
김재환,김수영,우수미,정하나,정지연,김선미,임회순 한국식품과학회 2019 Food Science and Biotechnology Vol.28 No.6
The aim of this study is to investigate combinedeffects of mineral trioxide aggregate (MTA) and propolison odontoblastic differentiation of human dental pulp stemcells (DPSCs) and to find a signaling pathway involved. Combination of MTA and propolis significantly up-regulatedthe expression of DSPP and DMP1, and facilitated amineral nodule formation (p\0.05). Treatments withMTA, propolis or combined increased the phosphorylationof extracellular signal-regulated kinases (ERK), one ofmitogen-activated protein kinases signaling cascades duringodontogenic differentiation of DPSCs (p\0.05), andU0126, an inhibitor of ERK, decreased calcium deposits(p\0.05). Combination of MTA and propolis promotesodontogenic differentiation and mineralization of DPSCsthrough ERK pathway.
내시경 역행성 담췌관 조영술 후 발생된 천공을 동반한 급성 담낭염 1예
유승희,노명환,한지선,우수미,김병근,형건덕,박소영,김준모 대한소화기내시경학회 2011 Clinical Endoscopy Vol.42 No.3
The incidence of acute cholecystitis complicating endoscopic retrograde Cholangiopancreatography (ERCP) is rarely reported at 0.2% but is usually associated with a cystic duct obstruction caused by gallstones, gallbladder polyps, or cancer. However, acute cholecystitis with a gallbladder perforation after ERCP without a history of cystic duct obstruction can develop very rarely and has not yet been reported in Korea. We report a case of acute cholecystitis with gallbladder perforation and aggravation of a pancreatic pseudocyst after diagnostic ERCP in a man with a pancreatic cystic lesion. He has been successfully cured using only percutaneous transhepatic gallbladder drainage and antibiotics with no surgery. 내시경 역행성 담췌관 조영술 이후 발생한 담낭염은 아주 드물어 0.2% 정도로 보고하고 있으며, 이 경우도 대부분은 담낭 결석이나 담낭 용종, 암 등에 의한 담낭관의 폐쇄가 주원인이다. 하지만 담낭 결석이나 기타 담낭관 폐쇄 등의 선행 인자 없이 내시경 역행성 담췌관 조영술 후에 천공을 동반한 급성 담낭염이 발생된 경우는 아주 드물며 국내에서는 보고된 예가 없다. 저자들은 가성 낭종을 동반한 급성 췌장염 환자에서 진단적 목적으로 내시경 역행성 담췌관 조영술을 시행한 후에 췌장 가성 낭종의 악화 및 담낭 축농과 천공이 동반된 급성 비결석 담낭염이 발생된 경우를 관찰하였으며 경피경간담낭배액술 및 항생제 요법으로 치료한 1예를 경험 하여 문헌고찰과 함께 보고한다.
김광래,서주환,김상범,우수미,김정웅 경희대학교 부설 디자인연구원 1999 예술· 디자인학연구 Vol.2 No.1
Predicting tree-form should be very important, even though it is difficult, step for landscape designers. The terms 'form' and 'habit' are often used when talking about the appearance of plants. It will be helpful to attempt a definition of these two terms with respect to plants ; 'habit' can be described as the direction of growth, and 'form' as the mass contained within the extremities of growth. but the designers forget the important of 'habit'. The initial selection of plants is the deceive step in the ultimate success of any landscape design. This study was carried out the method to use data of landscape design by classifying 'form' and 'habit'. It is important to landscape designer to recognize the relationship between the rationality which prevails throughout the modern technical world and the intuitive aspects of design that are essential for developing creative solution to encourage creativity as well as analytical responsibility.
김병근,노명환,류충헌,남화성,우수미,유승희,장진석,이종훈,최석렬,박병호 대한내과학회 2013 The Korean Journal of Internal Medicine Vol.28 No.3
Background/Aims: The bedside index of severity in acute pancreatitis (BISAP)is a new, convenient, prognostic multifactorial scoring system. As more data are needed before clinical application, we compared BISAP, the serum procalcitonin (PCT), and other multifactorial scoring systems simultaneously. Methods: Fifty consecutive acute pancreatitis patients were enrolled prospectively. Blood samples were obtained at admission and after 48 hours and imaging studies were performed within 48 hours of admission. The BISAP score was compared with the serum PCT, Ranson’s score, and the acute physiology and chronic health examination (APACHE)-II, Glasgow, and Balthazar computed tomography severity index (BCTSI) scores. Acute pancreatitis was graded using the Atlanta criteria. The predictive accuracy of the scoring systems was measured using the area under the receiver-operating curve (AUC). Results: The accuracy of BISAP (≥ 2) at predicting severe acute pancreatitis was 84% and was superior to the serum PCT (≥ 3.29 ng/mL, 76%) which was similar to the APACHE-II score. The best cutoff value of BISAP was 2 (AUC, 0.873; 95% confidence interval, 0.770 to 0.976; p < 0.001). In logistic regression analysis, BISAP had greater statistical significance than serum PCT. Conclusions: BISAP is more accurate for predicting the severity of acute pancreatitis than the serum PCT, APACHE-II, Glasgow, and BCTSI scores.