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Choi, Ji-Hun,Choi, Yun-Sang,Han, Doo-Jeong,Kim, Hack-Youn,Lee, Mi-Ai,Kim, Si-Young,Lee, Ju-Woon,Jeong, Jong-Youn,Kim, Cheon-Jei Korean Society for Food Science of Animal Resource 2010 한국축산식품학회지 Vol.30 No.4
The objective of this study was to determine the effect of reheating methods on the color characteristics of precooked pork patties with various NaCl and phosphate levels. NaCl/phosphate levels for each formulation were as follows; N1 (1% NaCl), N1+P (1% NaCl+0.3% phosphate), N2 (2% NaCl), and N2+P (2% NaCl+0.3% phosphate). The reheating methods used were by electric grill and microwave oven. The surface color of the patties reheated by microwave showed more brown and less-intense red, and the phosphate-treated patties reheated by microwave were more reddish and less brownish. With increased amounts of added NaCl and phosphate, the internal color of patties was more reddish, and the phosphate-treated patties reheated by microwave had more brown than those reheated by electric grill. Among all of the treatments, there were no significant differences in surface color, internal color, and overall appearance. Thus, the color changes in reheated patties were influenced by reheating methods and phosphate.
Transduced Tat-α-Synuclein Protects against Oxidative Stress In vitro and In vivo
Choi, Hee-Soon,Lee, Sun-Hwa,Kim, So-Young,An, Jae-Jin,Hwang, Seok-Il,Kim, Dae-Won,Yoo, Ki-Yeon,Won, Moo-Ho,Kang, Tae-Cheon,Kwon, Hyung-Joo,Kang, Jung-Hoon,Cho, Sung-Woo,Kwon, Oh-Shin,Choi, Jin-Hi,Park Korean Society for Biochemistry and Molecular Biol 2006 Journal of biochemistry and molecular biology Vol.39 No.3
Parkinson's disease (PD) is a common neurodegenerative disorder and is characterized by the progressive loss of dopaminergic neurons in the substantia nigra. Although many studies showed that the aggregation of $\alpha$-synuclein might be involved in the pathogenesis of PD, its protective properties against oxidative stress remain to be elucidated. In this study, human wild type and mutant $\alpha$-synuclein genes were fused with a gene fragment encoding the nine amino acid trans activator of transcription (Tat) protein transduction domain of HIV-l in a bacterial expression vector to produce a genetic in-frame WT Tat-$\alpha$-synuclein (wild type) and mutant Tat-a-synucleins (mutants; A30P and A53T), respectively, and we investigated the protective effects of wild type and mutant Tat-$\alpha$-synucleins in vitro and in vivo. WT Tat-$\alpha$-synuclein rapidly transduced into an astrocyte cells and protected the cells against paraquat induced cell death. However, mutant Tat-$\alpha$-synucleins did not protect at all. In the mice models exposed to the herbicide paraquat, the WT Tat-$\alpha$-synuclein completely protected against dopaminergic neuronal cell death, whereas mutants failed in protecting against oxidative stress. We found that these protective effects were characterized by increasing the expression level of heat shock protein 70 (HSP70) in the neuronal cells and this expression level was dependent on the concentration of transduced WT Tat-$\alpha$-synuclein. These results suggest that transduced Tat-$\alpha$-synuclein might protect cell death from oxidative stress by increasing the expression level of HSP70 in vitro and in vivo and this may be of potential therapeutic benefit in the pathogenesis of PD.
( Sung Bum Cho ),( Yen Joo Kim ),( Won Hyung Choi ),( Chung Hwan Cheon ),( Ki Hoon Lee ),( Nam Kyu Zang ),( Jin Woong Kim ),( Young Eun Joo ),( Sung Kyu Choi ) 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.1
Background: Liver abscess was very rare but serious complication lead to liver failure and fatal outcomes after transarterial chemoembolization (TACE) for hepatocellular carcinoma (HCC). This study was evaluated to clinical features of TACE related liver abscess and predicting risk factors among HCC patients who developed postembolization syndrome after TACE. Methods: From January 2008 to December 2010, 13 patients of liver abscess which was undergone percutanous drainage developed in 2582 sessions of TACE. There was retrospectively analyzed to clinical features and predicting risk factors of liver abscess compared with control group who was selected 181 patients with fever after TACE. Results: The incidence of liver abscess was 0.5%. The etiologic types were necrosis related abscess (7 cases, 54%), biloma related abscess (4 cases, 31%), indirect abscess (2 cases, 15%). The mean interval time between percutanous drainage and TACE was 51±38 days. The positive culture rate was 69 % (9 cases) and organisms were enterococcus (4), Klebsiella pnemumoniae (2), Escherichia coli (1), Citrobacter (1) and Clostridium difficile (1). Abscess group was more higher peak AST level, peak bilirubin level, single nodular type HCC, Choledocholithiasis, air forming tumoral necrosis than control group. Independent predicting risk factors to abscess was only large air forming tumoral necrosis. The overall mortality rate of abscess was 61%. 6 patients were died caused by directly related to abscess. Conclusions: TACE related liver abscess was fatal infectious complication related to extensive air forming tumoral necrosis. The clinician should be considered to possibility of developing abscess in HCC patient with high risk factors after TACE.
Indolent metastatic squamous cell carcinoma of hilar lymph node with cancer of unknown primary
( Sang Hyok Lim ),( Hong Woo Cheon ),( Ho Sung Lee ),( Jae Sung Choi ),( Ki Hyun Seo ),( Yong Hoon Kim ),( Ju Ock Na ) 대한내과학회 2013 대한내과학회 추계학술발표논문집 Vol.2013 No.1
Metastatic squamous cell carcinoma of intrathoracic lymph node with cancer of unknown primary (CUP) is very rare. We report a case of metastatic squamous cell carcinoma of hilar lymph node with CUP and review of the associated literatures. Abnormal mass in the right hilar was incidentally detected. The patient was performed a right pneumonectomy and mediastinal lymph node dissection. Microscopically, metastatic squamous cell carcinoma at hilar lymph nodes without primary lung or other lesion was diagnosed. He has currently been received adjuvant chemotherapy under diagnosis of T0N1M0 Lung cancer.
( Sung Bum Cho ),( Yen Joo Kim ),( Won Hyung Choi ),( Chung Hwan Cheon ),( Ki Hoon Lee ),( Nam Kyu Zang ),( Jin Woong Kim ),( Young Eun Joo ),( Sung Kyu Cho ) 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.-
Background: Liver abscess was very rare but serious complication lead to liver failure and fatal outcomes after transarterial chemoembolization (TACE) for hepatocellular carcinoma (HCC). This study was evaluated to clinical features of TACE related liver abscess and predicting risk factors among HCC patients who developed postembolization syndrome after TACE. Methods: From January 2008 to December 2010, 13 patients of liver abscess which was undergone percutanous drainage developed in 2582 sessions of TACE. There was retrospectively analyzed to clinical features and predicting risk factors of liver abscess compared with control group who was selected 181 patients with fever after TACE. Results: The incidence of liver abscess was 0.5%. The etiologic types were necrosis related abscess (7 cases, 54%), biloma related abscess (4 cases, 31%), indirect abscess (2 cases, 15%). The mean interval time between percutanous drainage and TACE was 51±38 days. The positive culture rate was 69 % (9 cases) and organisms were enterococcus (4), Klebsiella pnemumoniae (2), Escherichia coli (1), Citrobacter (1) and Clostridium difficile (1). Abscess group was more higher peak AST level, peak bilirubin level, single nodular type HCC, Choledocholithiasis, air forming tumoral necrosis than control group. Independent predicting risk factors to abscess was only large air forming tumoral necrosis. The overall mortality rate of abscess was 61%. 6 patients were died caused by directly related to abscess. Conclusions: TACE related liver abscess was fatal infectious complication related to extensive air forming tumoral necrosis. The clinician should be considered to possibility of developing abscess in HCC patient with high risk factors after TACE.
Choi, Yu Jin,Yang, Hee Sun,Jo, Jun Hee,Lee, Sang Cheon,Park, Tae Young,Choi, Bong Suk,Seo, Kyoung Sun,Huh, Chang Ki The Korean Society of Food Science and Nutrition 2015 Preventive Nutrition and Food Science Vol.20 No.2
This study investigated the anti-amnesic effect of fermented Ganoderma lucidum water extracts (GW) on scopolamine- induced memory impairment in rats. GW were fermented by the lactic acid bacterium Bifidobacterium bifidum (FGWB), followed by Lactobacillus sakei LI033 (FGWBL). To induce amnesia, scopolamine (1 mg/kg) was intraperitoneally injected into rats 30 min before the behavioral tests. Step-through latencies of rats treated with primary fermented extracts (300 mg/kg, FGWB) and secondary fermented extracts (300 mg/kg, FGWBL) were significantly longer than those of rats treated with GW (300 mg/kg) in the retention trial of the multiple trial passive avoidance test. In the Morris water maze task, FGWBL significantly shortened escape latencies in training trials. Furthermore, swimming times within the target zone during the probe trial with FGWBL were significantly higher than the GW and FGWB treatments. In addition, acetylcholinesterase activities were lower in the brains of scopolamine-treated rats treated with FGWBL. These results suggest that FGWBL could be useful to enhance learning memory and cognitive function via cholinergic dysfunction.
Cheon Jei Kim,Hyun Wook Kim,Ko Eun Hwang,Dong Heon Song,Youn Kyung Ham,Ji Hun Choi,Young Boong Kim,Yun Sang Choi 한국축산식품학회 2016 한국축산식품학회지 Vol.36 No.3
In this study, we investigated the effects of reducing fat levels from 30% to 25, 20, and 15% by substituting pork fat with water and pumpkin fiber (2%) on the quality of frankfurters compared with control. Decreasing the fat concentration from 30% to 15% significantly increased moisture content, redness of meat batter and frankfurter, cooking loss, and water exudation, and decreased fat content, energy value, pH, and lightness of meat batter and frankfurter, hardness, cohesiveness, gumminess, chewiness, and apparent viscosity. The addition of 2% pumpkin fiber was significantly increased moisture content, yellowness of meat batter and frankfurter, hardness, cohesiveness, gumminess, chewiness, and apparent viscosity, whereas reduced cooking loss and emulsion stability. The treatment of reduced-fat frankfurters formulated with 20 and 25% fat levels and with pumpkin fiber had sensory properties similar to the high-fat control frankfurters. The results demonstrate that when the reduced-fat frankfurter with 2% added pumpkin fiber and water replaces fat levels can be readily made with high quality and acceptable sensory properties.
( Sung Eun Kim ),( Moo In Park ),( Seun Ja Park ),( Won Moon ),( Youn Jung Choi ),( Ji Hyun Cheon ),( Hye Jung Kwon ),( Ki Hwan Ku ),( Chang Hun Yoo ),( Jae Hyun Kim ),( Gyu Won Lee ),( Sung Eun Song 대한내과학회 2015 The Korean Journal of Internal Medicine Vol.30 No.6
Background/Aims: Trends in successful eradication of Helicobacter pylori using first-line triple therapy, consisting of a proton pump inhibitor, amoxicillin, and clarithromycin, have been understudied. We evaluated H. pylori eradication rates at a single center over the last 10 years and identified risk factors related to eradication failure. Methods: This study included 1,413 patients who were diagnosed with H. pylori infection and received 7 days of triple therapy between January 2003 and December 2012. We investigated H. pylori eradication rates retrospectively with respect to the year of therapy, as well as demographic and clinical factors. H. pylori eradication was confirmed by a 13C-urea breath test or a rapid urease test at least 4 weeks after the completion of triple therapy. Results: The overall H. pylori eradication rate was 84.9%. Annual eradication rates from 2003 to 2012 were 93.5%, 80.0%, 87.2%, 88.5%, 92.0%, 88.3%, 85.7%, 84.1%, 83.7%, and 78.8%, respectively, by per-protocol analysis. The eradication rate with first-line triple therapy decreased during the last 10 years (p = 0.015). Multivariate analysis showed that female gender (odds ratio [OR], 1.69; 95% confidence interval [CI], 1.12 to 2.55) and smoking (OR, 1.61; 95% CI, 1.05 to 2.47) were associated with the failure of H. pylori eradication therapy. Conclusions: The efficacy of first-line triple therapy for H. pylori infection has decreased over the last 10 years, suggesting an increase in antibiotic-resistant H. pylori strains. Thus, other first-line therapies may be necessary for H. pylori eradication in the near future.
Choi, Yun-Sang,Sung, Jung-Min,Park, Jong-Dae,Hwang, Ko-Eun,Lee, Cheol-Won,Kim, Tae-Kyung,Jeon, Ki-Hong,Kim, Cheon-Jei,Kim, Young-Boong Korean Society for Food Science of Animal Resource 2016 한국축산식품학회지 Vol.36 No.6
The effects of reducing pork fat levels from 20% to 15% or 10% by partially substituting pork back fat with wheat sprout fiber in reduced-fat chicken patties were investigated. Approximate composition, energy value, pH, color, cooking loss, reduction in diameter, reduction in thickness, shear force, and sensory properties were determined. Moisture content, ash contents, yellowness of uncooked and cooked reduced-fat chicken patties with wheat sprout were higher than those in the control, while displaying fat content, calorie content, and pH of uncooked and cooked lower in reduced-fat chicken patties than in the control. Cooking loss, reduction in diameter, and reduction in thickness were the highest in the reduced-fat chicken patties with 10% fat level. Cooking loss, reduction in diameter, and reduction in thickness were decreased when fat levels and wheat sprout levels were increased. Control samples without wheat sprout dietary fiber had significantly (p<0.05) higher color and flavor scores compared to reduced-fat chicken patties containing wheat sprout dietary fiber. The overall acceptability of the control and treatment with 15% fat and 2% wheat sprout dietary fiber (T3) was the highest. Therefore, 15% fat level in reduced-fat chicken patties with the addition of 2% wheat sprout dietary fiber can be used to improve the quality and sensory characteristics of regular-fat chicken patties containing 20% fat level.