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Moon, Jae Hoon,Ahn, Soyeon,Seo, Jiyeong,Han, Ji Won,Kim, Kyoung Min,Choi, Sung Hee,Lim, Soo,Park, Young Joo,Park, Do Joon,Kim, Ki Woong,Jang, Hak Chul Issued for the Endocrine Society by the Williams W 2014 The Journal of clinical endocrinology & metabolism Vol.99 No.10
<P>Several studies have evidenced the association between subclinical hyperthyroidism and cognitive impairment in the elderly. However, the effect of long-term TSH suppressive therapy on the cognitive function in elderly patients with differentiated thyroid carcinoma (DTC) is still unclear.</P>
Cadms/SynCAMs/Necls/TSLCs Interact with Multi-PDZ Domain Protein MUPP1
Won Hee Jang(장원희),Young Joo Jeong(정영주),Sun Hee Choi(최선희),Sang-Jin Kim(김상진),Sang-Hwa Urm(엄상화),Il Soo Moon(문일수),Dae-Hyun Seog(석대현) 한국생명과학회 2014 생명과학회지 Vol.24 No.12
조직의 구조 안정성을 유지하는 세포 사이 연접복합체는 multi-PDZ domain protein 1 (MUPP1)을 포함하여 50종류 이상의 단백질로 이루어져 있다. MUPP1은 13개의 PDZ 도메인을 가지는 단백질로서 막경유(transmembrane) 단백질과 세포골격단백질이나 신호단백질 사이에서 scaffold로 작용한다고 알려져 있지만, MUPP1이 어떻게 세포막인접 단백질들을 연결하고 구조 안정화에 기여하는지에 대해 아직 명확히 밝혀지지 않았다. 본 연구에서 MUPP1의 PDZ 도메인과 상호 작용하는 단백질을 규명하기 위하여 효모 two-hybrid 방법을 이용, cell adhesion molecule 1 (Cadm1; SynCAM1, Necl-2 또는 TSLC1로도 알려짐)이 MUPP1과 결합하는 것을 확인하였다. Cadm1은 MUPP1의 2번째 PDZ 도메인과 결합하며, Cadm1의 C-말단에 존재하는 II 형 PDZ-결합모티프(-Y-F-I)가 MUPP1과의 결합에 필수적임을 확인하였다. 또한 MUPP1은 다른 Cadm family 단백질들인 Cadm2, Cadm3, 그리고 Cadm4와도 결합하며, 이러한 단백질간 결합은 glutathione S-transferase (GST) pull-down assay와 공동면역침강으로도 추가 확인하였다. 생쥐의 뇌 파쇄액을 MUPP1 항체로 면역침강하였을 때 Cadm1과 Cadm4가 같이 침강하였다. 이러한 결과들은 MUPP1이 세포 사이 연접에서 Cadms와 세포골격 단백질 사이를 연결한다는 것을 시사한다. Cell adhesion molecules determine the cell-cell binding and the interactions between cells and extracellular signals. Cell-cell junctional complexes, which maintain the structural integrity of tissues, consist of more than 50 proteins including multi-PDZ domain protein 1 (MUPP1). MUPP1 contains 13 postsynaptic density-95/disks large/zonula occludens-1 (PDZ) domains and serves a scaffolding function for transmembrane proteins and cytoskeletal proteins or signaling proteins, but the mechanism how MUPP1 links and stabilizes the juxtamembrane proteins has not yet been elucidated. We used the yeast two-hybrid system to identify proteins that interact with PDZ domains of MUPP1. We found an interaction between MUPP1 and cell adhesion molecule 1 (Cadm1, also known as SynCAM1, Necl-2, or TSLC1). Cadm1 bound to the second PDZ domain of MUPP1. The carboxyl (C)-terminal end of Cadm1 has a type II PDZ-association motif (-Y-F-I) which was essential for the interaction with MUPP1 in the yeast two-hybrid assay. MUPP1 also bound to the C-terminal cytoplasmic tail region of other Cadm family members (Cadm2, Cadm3, and Cadm4). In addition, these protein-protein interactions were observed in the glutathione S-transferase (GST) pull-down assay and by coimmunoprecipitation. Anti-MUPP1 antibody co-immunoprecipitated Cadm1 and Cadm4 with MUPP1 from mouse brain extracts. These results suggest that MUPP1 could mediate interaction between Cadms and cytoskeletal proteins.
Won-Tae Hwang,Eun-Han Kim,Moon-Hee Han,Yong Ho Choi,Han-Soo Lee,Chang Woo Lee 한국방사성폐기물학회 2005 방사성폐기물학회지 Vol.3 No.2
삼중수소의 환경방출에 따른 주민선량의 규제이행을 위해 개발된 NEWTRIT모델, AIRDOS-EPA 모델, NRC 모델의 평가 방법을 고찰하고, 활용 가능한 국내 특성자료를 사용하여 예측결과를 비교하였다. 이들 모델 중에서 가장 최근에 개발된 NEWTRIT 모델만이 tritiated water (HTO) 방출에 따른 organically bounded tritium (OBT)의 영향을 고려한다. 평가결과 삼중수소의 환경방출로 인해 모든 가능한 경로로부터 받게 되는 총 피폭선량은 AIRDOS-EPA 모델의 예측결과가 NEWTRIT모델과 NRC모델에 비해 각각 1.03배, 2.46배 높은 결과를 나타냈다. 이러한 결과로부터 NRC모델로 예측되는 피폭선량이 실제 주변주민이 받을 수 있는 피폭선량을 과소평가할수 있다고 이해해서는 안될 것이다. 왜냐하면 삼중수소의 환경내 거동에 대한 불확실성은 매우 크기 때문에 규제이행을 위한 수학적 모델과 관련 변수 값은 극히 보수적 가정에 근거하기 때문이다. NEWIRIT 모델로 예측된 식품섭취에 의한 피폭선량에서 우리나라의 주식인 곡류의 상대적으로 많은 섭취로 OBT는 HTO와 거의 대둥한 수준의 영향을 나타내었다. 삼중수소의 환경방출에 따른 총 피폭선량에서 NRETRIT 모델은 AIRDOS-EPA 모델과 유사한 예측결과를 나타내지만, NEWTRIT 모델은 식품섭취에 따른 OBT의 영향을 고려함으로써 환경으로 방출된 HTO 거동의 현상적 이해 둥에 있어서 보다 의미가 있다고 판단된다. Methodologies of NEWTRIT model, NRC model and AIRDOS-EPA model, which are off-site dose assessment models for regulatory compliance from routine releases of tritium into the environment, were investigated. Using the domestic data, if available, the predictive results of the models were compared. Among them, recently developed NEWTRIT model considers only doses from organically bounded tritium (OBT) due to environmental releases of tritiated water (HTO) . A total dose from all exposure pathways predicted from AIRDOS-EPA model was 1.03 and 2.46 times higher than that from NEWTRIT model and NRC model, respectively. From above result, readers should not have an understanding that a predictive dose from NRC model may be underestimated compared with a realistic dose. It is because of that both mathematical models and corresponding parameter values for regulatory compliance are based on the conservative assumptions. For a dose by food consumption predicted from NEWTRIT model, the contribution of OBT was nearly equivalent to that of HTO due to relatively high consumption of grains in Korean. Although a total dose predicted from NEWTRIT model is similar to that from AIRDOS-EPA model, NEIIfTRIT model may be have a meaning in the understanding of phenomena for the behavior of HTO released into the environment.
DIFFUSIONAL INTERFERENCE IN LIQUID PHASE COUNTER - ADSORPTIONS
Moon, Hee,Park, Heung Chul,Lee, Won Kook 한국화학공학회 1990 Korean Journal of Chemical Engineering Vol.7 No.4
A surface diffusion mocel with diffusional interference has been presented for the analysis of multicomponent adsorption of phenols by activated carbon. Surface diffusion coefficients for multicomponent adsorptions were estimated from the relationship between he surface diffusion coefficient of each species and the surface coverage. The diffusional interference coefficients, W_(ij), was determined from experimental counter-adsorption data. The numerical values of W_(ij) were in the range a of 0.4-0.9, which show that the introduction of diffusional interference is necessary to analyze multicomponent counter-adsorptions properly. The proposed model successfully simulates the behaviour of phenols-activated carbon system in a batch adsorber.
Won, Yu Sam,Rho, Myung Ho,Kim, Byung Moon,Park, Hee Jin,Kwag, Hyon Ju,Chung, Eun Chul The Korean Neurosurgical Society 2013 Journal of Korean neurosurgical society Vol.53 No.5
Objective : To evaluate the feasibility and clinical and angiographic outcomes of stent-assisted embolization for complex middle cerebral artery (MCA) aneurysms. Methods : The records of 23 consecutive patients with 24 MCA aneurysms, who underwent stent-assisted embolization of the aneurysm, were retrospectively evaluated. Results : Fifteen aneurysms were treated with one stent and 8 were treated using more than two stents (5 a stent-within-a-stent, 1 triple stents, and two Y-stent). Angiographically, complete or near complete occlusion was achieved in 15 aneurysms (65.2%), residual neck in five (21.7%), and residual aneurysm in three (13.1%). Five aneurysms demonstrated thrombosis within the stent during the procedure and hospitalization, and were resolved by intraarterial and intravenous Tirofiban injection. Symptomatic thromboembolic complications were developed in five patients and permanent deficits demonstrated in two patients with modified Rankin Scale 1 and 2, respectively. Treatment-related permanent morbidity and mortality rates were 8.3% and 0% with relatively high complication rate. Angiographic follow-up was available in 17 aneurysms at 6-31 months (mean, 13.2 months) and showed stable or improved in 15 (88.2%) and major and minor recurrence in one, respectively. Conclusion : Complex MCA aneurysms could be treated by stent-assisted coiling and showed lower recanalization rate during mid-term follow-up by effective flow diversion due to various stent-assisted techniques. Our results warrant further study with a longer follow-up period in a larger sample.
Endoscopic Submucosal Dissection for Rectal Neuroendocrine (Carcinoid) Tumors
Moon, Sang Hui,Hwang, Jeong Hwan,Sohn, Dae Kyung,Park, Ji Won,Hong, Chang Won,Han, Kyung Su,Chang, Hee Jin,Oh, Jae Hwan Mary Ann Liebert 2011 Journal of laparoendoscopic & advanced surgical te Vol.21 No.8
<P>Rectal neuroendocrine (carcinoid) tumors smaller than 1???cm without lymph node metastasis and confined within the submucosal layer (stage T1aN0) can be treated using endoscopic resection. The present study was aimed to assess the safety and efficacy of endoscopic submucosal dissection (ESD) for T1aN0 carcinoid tumors.</P>
Vein of Galen Aneurysmal Malformation : Endovascular Management of 6 Cases in a Single Institute
Moon, Jung-Hyeon,Cho, Won-Sang,Kang, Hyun-Seung,Kim, Jeong-Eun,Lee, Seung-Jin,Han, Moon-Hee The Korean Neurosurgical Society 2011 Journal of Korean neurosurgical society Vol.50 No.3
Objective : The aim of this study was to analyze the treatment outcome of patients with vein of Galen aneurysmal malformations (VGM). Methods : Clinical and angiographic data of six consecutive patients with VGM were retrospectively reviewed. VGMs were angiographically classified by Yasargil's method. Treatment outcomes were evaluated. Results : Mean age at initial treatment was $4.4{\pm}5.7$ months. Angiographic types of VGMs were type II in two patients and type III in four. Three patients had cardiac symptoms and the others were asymptomatic. Two patients were treated with transvenous embolization, three with transarterial embolization, and one was managed conservatively. Two patients died due to venous hypertension few days after transvenous approach. Of three patients who were transarterially embolized, one was completely occluded with Onyx and two were incompletely occluded. During the follow-up period (range, one to six years) two of three patients treated with transarterial approach were asymptomatic and the other showed mild symptoms. One patient who was managed conservatively showed normal performance. Conclusion : Transarterial embolization of VGMs may be better than transvenous approach in terms of the treatment outcome and complication. Further studies are needed because of the rarity of the disease and rapid advancement of endovascular techniques.
Moon, Myung-Hee,Jeong, Jae-Kyo,Seo, Jae-Suk,Seol, Jae-Won,Lee, You-Jin,Xue, Meilang,Jackson, Christopher J.,Park, Sang-Youel Korean Society for Biochemistry and Molecular Bion 2011 Experimental and molecular medicine Vol.43 No.3
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL), a member of the TNF superfamily of cytokines, is one of the most promising candidates for cancer therapeutics. However, many osteosarcomas are resistant to TRAIL. Bisphosphonates are very effective in the treatment of bone problems associated with malignancies; the antitumor effects are due to the inhibition of protein prenylation that is essential for cell function and survival. The purpose of this study was to determine the effects of bisphosphonates on TRAIL-resistant MG 63 human osteosarcoma cells. The cells showed no response to TRAIL alone; however, pre-treatment with bisphosphonates significantly increased TRAIL-mediated apoptosis and cellular activation of caspase-3. Bisphosphonates significantly induced mRNA and protein expression of the TRAIL receptor, DR5. Bisphosphonates induced protein unprenylation in MG 63 cells; in addition, co-treatment with TRAIL also significantly increased protein unprenylation. Blocking of protein unprenylation using geranylgeraniol attenuated the cellular responses, including cell apoptosis and protein unprenylation induced by bisphosphonates and TRAIL. This is the first study to demonstrate that bisphosphonates markedly enhanced TRAIL-induced apoptosis in human osteosarcoma cells. These findings suggest that bisphosphonates may be a new and effective anticancer treatment with TRAIL proteins for TRAIL-resistant cancer cells.
Case Reports : A Case of Hypothermia Combined with Systemic Lupus Erythematosus
Moon Hee Yang,Won Park,Sung Kwon Bae,Sung Soo Kim,Yong Hwan Lee,Kyung Wook Lee,Jung Soo Song 대한내과학회 2001 The Korean Journal of Internal Medicine Vol.16 No.1
Systemic lupus erythematosus(SLE) is a prototypic autoimmune disease affecting various organ systems. Hypothermia is a rare manifestation of SLE. We experienced a case of SLE combined with hypothermia. A 36-year-old woman, who had been diagnosed as SLE 3 d