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( Sihyung Park ),( Hang Jea Jang ),( Yang Wook Kim ),( Bong Soo Park ),( Hyun Kuk Kim ),( Jong Woon Song ),( Yeon Mi Kim ),( Kyubok Jin ) 대한류마티스학회 2015 대한류마티스학회지 Vol.22 No.6
Cytomegalovirus (CMV), a member of the human herpesvirus group, causes severe disease in immunocompromised patients. In particular, CMV pneumonia can be a life-threatening disease to patients taking immunosuppressive drugs. The radiographic manifestations of CMV are variable and may consist of reticular or reticulonodular patterns, ground-glass opacities, air-space consolidations, or mixed patterns. A cavitary lesion in pneumonia associated with CMV infection is extremely rare. Herein we report on a case of CMV pneumonia which presented with a cavitary lesion and was treated successfully in a systemic lupus erythematosus patient who was taking immunosuppressive drugs. (J Rheum Dis 2015;22:387-390)
Wang, Sihyung,Kim, Jieun,Lee, Chanbin,Oh, Dayoung,Han, Jinsol,Kim, Tae-Jin,Kim, Sang-Woo,Seo, Young-Su,Oh, Seh-hoon,Jung, Youngmi Elsevier 2019 Biomaterials Vol.219 No.-
<P><B>Abstract</B></P> <P>Liver fibrosis is a major characteristic of liver disease. When the liver is damaged, quiescent hepatic stellate cells (HSCs) transdifferentiate into proliferative myofibroblastic/activated HSCs, which are the main contributors to liver fibrosis. Hence, a strategy for regulating HSC activation is important in the treatment of liver disease. Tumor necrosis factor-inducible gene 6 protein (TSG-6), a cytokine released from mesenchymal stem cells (MSCs), influences MSC stemness. Therefore, we investigated the biological effect of TSG-6 on HSCs. Human primary HSCs treated with TSG-6 showed significant downregulation of HSC activation markers and upregulation of senescence markers. TSG-6 promoted these cells to express stem cell markers and form spherical organoids, which exhibited elevated expression of stemness-related genes. These organoids differentiated into functional hepatocytic cells under specific culture conditions. Organoids derived from TSG-6-treated HSCs improved livers in organoid transplant mice subjected to CCl<SUB>4</SUB> treatment (which induces liver fibrosis). Furthermore, HSC transdifferentiation by TSG-6 was mediated by Yes-associated protein 1. These findings demonstrate that TSG-6 induces the conversion of HSCs into stem cell-like cells in vitro and that organoids derived from TSG-6-treated HSCs can restore fibrotic liver, suggesting that direct reprogramming of HSCs by TSG-6 can be a useful strategy to control liver disease.</P>
김태홍 ( Taehong Kim ),김태형 ( Tae Hyung Kim ),이원혁 ( Won Hyuk Lee ),이유진 ( Yoo Jin Lee ),박시형 ( Sihyung Park ),박봉수 ( Bong Soo Park ),김양욱 ( Yang Wook Kim ) 대한내과학회 2016 대한내과학회지 Vol.91 No.3
대장 내시경 검사에서 장 정결은 필수적인 조건이며, 이를 위해선 장 정결제가 반드시 필요하고 정결제는 각기 다른 특성을 지니고 있다. 따라서 정상 신기능을 가진 환자라도 대장 내시경의 목적 및 환자의 증상에 따라 장 정결제 선택에 주의를 해야 할 것으로 생각된다. Most reported cases of hypermagnesemia are related to laxative abuse and impaired renal function, while hypermagnesemia is uncommon without iatrogenic magnesium administration and decreased renal function. Magnesium-containing bowel-cleansing agents are widely used before colonoscopy, usually without complications. However, we experienced a case of symptomatic hypermagnesemia with normal renal function after using a bowel-cleansing agent. A 74-year-old man with normal renal function complained of lethargy and motor weakness after taking a bowel-cleansing agent containing 14 grams of magnesium before a colonoscopy for hematochezia. His magnesium level was 12 mg/dL. Fluid stasis in the gut due to colonic obstruction might have caused the hypermagnesemia. He was treated successfully with a bowel enema and intravenous calcium. We should be cautious when prescribing drugs for colonoscopy if colonic obstruction is suspected. (Korean J Med 2016;91:306-310)