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( Hong Seon Son ),( Sung Hoon Choi ),( Na Eun Lee ),( Chang Hun Lee ),( Seung Young Seo ),( Seong Hun Kim ),( Sang Wook Kim ),( Seung Ok Lee ),( Soo Teik Lee ),( Dae Ghon Kim ),( In Hee Kim ) 대한간학회 2017 춘·추계 학술대회 (KASL) Vol.2017 No.1
Aims: Tenofovir (TDF) entecavir (ETV) are considered as the preferred treatment options for treatment-naïve chronic hepatitis B (CHB) patients. We compared the virologic response and renal safety of long-term TDF versus ETV therapy in naïve CHB patients. Methods: This retrospective study included total 432 patients who were treated with TDF (n=205) or ETV (n=227) from August 2012 to March 2017. Virologic response (VR) was defined as undetectable serum HBV DNA by PCR (<20 IU/mL). Results: Mean age of patients, sex, baseline serum levels of AST, ALT, creatinine, and HBV DNA were not significantly different between TDF and ETV groups. The cumulative rates of VR between TDF and ETV groups were 71.6% vs. 61.8% (p=0.477), 88.1% vs. 79.6% (p=0.058), and 84.8% vs. 83.7% (p=0.966) at 1, 2, and 3 years, respectively. The cumulative rates of genotypic resistance between TDF and ETV groups were 0% vs. 0%, 0% vs. 1.5% (p=0.404), and 0% vs. 2.2% (p=0.447) at 1, 2, and 3 years, respectively. Incidences of renal impairment and hypophosphatemia during treatment up to 3 years were not significantly different between two groups. Multivariate analysis showed that HBeAg-positivity (OR 0.27, 95% CI 0.12-0.58, p=0.0012) and serum HBV DNA at 1 year 2000 IU/mL (OR 0.09, 95% CI 0.03-0.25, p<0.0001) were significantly associated with VR. Conclusions: Long-term TDF and ETV treatments appear to have similar virologic response and renal safety in naïve CHB patient. However, long-term ETV therapy might to be associated with genotypic resistance in 2.2% up to 3 years, while none of patients on TDF therapy did.
Active Packaging Systems for Preventing Oxidation
Kwang Seon Choi,Seok In Hong,Seok Min Son 한국산업식품공학회 2003 산업 식품공학 Vol.7 No.4
The rapid growth of the food packaging field is powered by the ever growing health conscious consumers and demand for fresher and higher quality foods. Active packaging technologies provide solutions for extending products shelf life with specially altered packaging systems. Among the several shelf life enhancer systems, active packaging system for preventing oxidation is discussed in this paper. Oxidation is generally regarded as the main factor in the development of rancidity of fats and oils. The oxidative processes result in the food becoming unacceptable for consumers. Such oxidation is inhibited by exclusion of oxygen and by the presence of antioxidants. First of all, oxygen scavengers made up of substances which chemically or enzymically react with oxygen were developed to remove oxygen. The commercial oxygen scavengers such as “ageless sachet”, “platinum catalyst”, and “glucose/oxidase enzyme” have been greatly discussed in their action mechanisms and applications. The use of antioxidants in packaging manufacture has so far been limited to stabilizing the polymer during the processing or retarding the change of polymer's physical properties during storage when UV irradiated. However, a further benefit derived from incorporation of an antioxidant into the polymer is more interesting for its ability to retard lipid oxidation of the packaged food via slow migration of an antioxidant from the polymer to food. In view of which, in this paper we will review some oxygen scavenger systems as well as antioxidant-impregnated or antioxidant-coated polymer packaging material.
박리성 올가미를 이용하여 제거한 대장 과립세포종 1예: 단일 기관에서 경험한 과립세포종의 임상양상과 함께
손홍선 ( Hong Seon Son ),박관우 ( Kwan Woo Park ),장슬아 ( Seol A Jang ),장지원 ( Ji Won Jang ),임성균 ( Sung Kyun Yim ),이상연 ( Sang Youn Lee ),이수택 ( Soo Teik Lee ),김성훈 ( Seong Hun Kim ) 전북대학교 의과학연구소 2011 全北醫大論文集 Vol.35 No.1
대장의 과립세포종은 일반적으로 양성이 며 증상이 없고 우연히 발견되는 매우 드문 종양이다. 최근 감별진단을 위해 내시경초음 파를 이용한 시도가 보고되었지만, 아직까진 절제를 통한 조직검사만이 확진 방법으로 알려져 있다. 저자 등은 증상이 없었던 47세 남자에서 우연히 발견된 대장 점막하 종양을 박리성 올가미를 사용하여 내시경적으로 절제하여 조직학적으로 확진 된 증례와 3차 단일기관에서 10년간 모든 장기에서 과립세 포종으로 진단된 21예의 임상양상을 비교하여 고찰과 함께 보고하고자 한다. Granular cell tumor (GCT) of the colon is rare, benign, asymptomatic and usually found incidentally. Although EUS has been tried for diagnosis, endoscopic resection and histological examination is mandatory to confirm. In this case report, submucosal mass of the colon in an asymptomatic 47-year-old male was removed by detachable snare and was confirmed GCT. Here we also reviewed clinical characteristics of 21 cases of GCT which developed at various organs for 10 years in a single tertiary medical institute.
Nam Sook Park,Han Seok Kang,Seon Ku Kim,Yong Gyun Kim,Byung Uuk Cho,Teak Soon Shin,Keun Ki Kim,Hyun Chul Park,Hong Joo Son,Hong Gu Lee,Sook Jae Sea,Hong Ja Kim,Eunju Park,Gyeong Im Jeon,Hyun Jung Lee, 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.05
A full genomic DNA microarray technique was employed to investigate the effects of Dongchunghacho on aortal and hepatic gene expression in apolipoprotein E knockout mice fed a high-fat/high-cholesterol diet. Male 8- week - old ApoE-/- mice were randomly divided into two groups, control(high cholesterol group; HC) and supplementation of Dongchunghacho (SD). All of the mice were fed a high-fet/high cholesterol diet with or without Dongchunghacho supplemented by 1% for 6 weeks. At first, lipid profile of the Dongchunghacho was measured by biochemical analysis. No differences were observed in serum triglyceride and total cholesterol levels between the two groups. Antigenotoxic effect of the Dongchunghacho was measured by the single cell gel electrophoresis assay (Comet assay) and quantified as % fluorescence in tail. Dongchunghacho supplementation decreased significantly leukocytic DNA damage and also there was a tendency of reduction in hepatic DNA damage in Dongchunghacho group compared with the control group. In up regulated genes in liver and aorta of the mice, genes with 0 to 2- fold difference in expression level between the two group (HD and SD) was very much more in liver than in aorta, on the contrary, those with 2-fold to 16-flod difference increased greatly rather in aorta than in liver. Also, almost the same results were observed in down regulated genes in liver and aorta between the two groups. These results suggested that supplementation of Dongchunghacho might be helpful in preventing leukocytic DNA damage induced by high fat diet, and has a more crucial roles in aortal gene expression.
손혜영,천선희,홍기숙 梨花女子大學校 醫科大學 醫科學硏究所 1995 EMJ (Ewha medical journal) Vol.18 No.4
Rifampin-induced thrombocytopenia has been recognized as an immunological reaction associated with intermittent high dose therapy, or after administration of rifampin fo11owing aninterruption of therapy, and rarely seen with daily low dose therapy. The patient was a 64 year-old male who was given rifampin 600mg daily for treatment of recurrent pulmonary tuberculosis. He had been received antituberculous treatment includingriftmpin 4 years ago. Spontaneous gum bleeding, petechiae on whole body, hemoptysis wasnoted two weeks after initiating the treatment. His platelet count was 5000/mm^3. Antituberculous medication was discontinued, but the platelet count was not recovered. He diedof severe hypoxemia due to pulmonary hemorrhage. With the essential use of rifampin for the treatment of tuberculosis infections, clinicianshould recognize the possible complication of this drug causing such serious immunologic reactions as thrombocytopenia, hemolytic anemia, and acute renal failure with daily or intermittenttheupy.
Hong Gu Lee(이홍구),Young Cheng Jin(김영성),Hisashi Hidari,Yun Jaie Choi(최윤재),Seon Ku Kim(김선구),Teak Soon Shin(신택순),Byung Uuk Cho(조병욱),Yong Gyun Kim(김용균),Keun Ki Kim(김근기),Hong Joo Son(손홍주),Sang Mong Lee(이상몽) 한국생명과학회 2008 생명과학회지 Vol.18 No.7
본 연구는 정상으로 단백질을 급여한 거세면양에 있어서 에너지 첨가가 GHRP-2투여에 대한 혈장 IGF-1 및 IGFBPs에 대한 반응과, 고에너지 급여에 따른 GHRP-2투여가 hepatic GH 수용체에 미치는 영향을 검증하기 위하여 실시하였다. 시험 결과 HENP (CP 0.34 ㎏, TDN 1.83 ㎏/day DM intake)처리기간 동안 혈장 IGF-1 과 39-42kDa IGFBP-3수준은 LENP (CP 0.32 ㎏, TDN 0.87 ㎏/day DM intake)기간에 비하여 높게 나타났으나 (P<0.05), 혈장 34 kDa IGFBP-2와 24 kDa IGFBP-4는 영양처리에 의해 영향을 받지 않았다. 각 영양처리 기간동안 GHRP-2 (12.5 μg/㎏ body weight/day)투여는 혈장 GH 반응이 촉진되었으며(P<0.05), 혈장 GH 평균 함량과 AUC증가에 있어서는 LENP처리 기간에 비하여 HENP처리기간에서 유의적으로 높게 나타났다(P<0.01). 특히 HENP에서 7일간 GHRP-2투여에 의한 일중 혈장 IGF-1 변화양상을 조사한 결과 투여 2, 6 및 7일에서 뚜렷한 증가양상을 보였다(P<0.05). 이에 반하여 LENP에서는 오직 투여 3일째에서 Saline구에 비하여 유의적인 증가를 확인하였다(P<0.05). IGFBPs의 ligand blotting 결과 HENP구에서 혈장 39-43 kDa IGFBP-3의 수준의 증가가 투여 6일과 7일에서 관찰되었으나 혈장 IGFBP-2수준은 두 영양처리시기에서 유의적인 차이를 관찰하지 못했다. 아울러 HENP구에 있어서 간세포막에 <SUP>125</SUP>I-oGH의 결합력을 측정한 결과 GHRP-2투여에 의한 영향은 관찰되지 않았다. 이와 같은 결과는 거세면양에 있어서 단백질과 에너지 사이의 영양적 균형은 내인성 GH/IGF-1 axis는 물론 혈장 IGFBP-3수준의 변화에 영향을 미치고 있음을 시사한다. The purpose of this study was to determine the effect of energy supplement on responses of plasma insulin-like growth factor (IGF)-1 and IGF binding proteins (IGFBPs) to growth hormone-releasing peptide-2 (GHRP-2) administration in normal protein-fed wethers, and to observe the effect of GHRP-2 treatment on hepatic growth hormone (GH) receptor in well-fed wethers. Plasma IGF-1 and 39-42 kDa IGFBP-3 during the HENP (CP, crude protein 0.34 and TDN, total digestible nutrients 1.83 ㎏/day DM, dry matter intake) treatment period were higher than in the LENP (CP 0.32 ㎏ and TDN 0.87 ㎏/day DM intake) period (P<0.05). The response of GH was stimulated by GHRP-2 (12.5 ㎍/㎏ body weight/day) administration during both of the feed treatment periods (P<0.05). The area under curve (AUC) increment and average concentration of GH (0-180 min) with GHRP-2 administration was higher during HENP treatment than LENP treatment (P<0.01). During the HENP treatment period from day 1 to day 7 of twice daily GHRP-2 treatment, the plasma IGF-1 increment was increased on days 2, 6 and 7 of GHRP-2 administration (P<0.05). On the basis of ligand blotting, the proportions of plasma 39-43 kDa IGFBP-3 during the HENP treatment period only showed a significant difference on days 6 and 7 with GHRP-2 administration. No significant difference in the specific binding of 125I-labeled oGH to hepatic membranes was detected between the saline and GHRP-2 treatments of the HENP-fed wethers. These results suggest that the nutritional balance between energy and protein may affect the endogenous GH / IGF-1 axis as well as plasma IGFBP-3 levels.
Son, Young Sook,Hong, Weon Seon,Yi, Jae Youn 생화학분자생물학회 2002 BMB Reports Vol.34 No.1
To investigate the mechanism of adriamycin (ADM) resistance in the ADM resistant subline FC-14/ADM, we examined the expressions of p-glycoprotein (P-gp), topoisomerase I (Topo n and II (Topo In, glutathione-S-transferases (GSTs), tissue transglutaminase (t-TG), epidermal growth factor receptor (EGFR), and E-cadherin and the activity of superoxide dismutase (SOD) in PC-14 and PC-14/ADM cells. There was no change in the cellular levels of P-gp, Topo I, Topo II, and the two isoforms of GSTs. However, SOD activity in PC-14/ADM cells was 2.38 fold higher than that in PC-14 cells. A marked induction of the tTG expression was also observed in PC-14/ADM cells. In addition to those changes, expressions of EGFR and Ecadherin were down regulated in PC-14/ADM cells. Therefore, molecular modifications such as an increase in SOD activity, induction of the t-TG expression, and down regulation of EGFR and E-cadherin expressions may play important roles in PC-14/ADM cells during the development of ADM resistance.