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Preparation and Characteristics of Sargassum horneri Extracts Loaded Nanostructured Lipid Carriers
Hye-Yoon Yi,Ji-Yeon Chun 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
Sargassum horneri extract (SHE) has potent bioactive functions like anti-inflammatory and antioxidant activity but has low bioavailability and process suitability due to poor solubility. In this study, we attempted to overcome these problems of SHE by nanostructured lipid carriers (NLC) system. To form SHE NLC, 0-0.5% SHE, glyceryl tristearate and medium chain triglycerides oil were used and homogenized by using a high pressure homogenization (HPH) method and then. Various SHE NLC were characterized for 28 days at 25 and 65℃. In the results of encapsulation efficiency (EE%) and particle size (PS), SHE NLC showed a trend of decreasing EE (%) and increasing PS over time when stored at 65℃. According to the polydispersity index result, all samples showed monodispersity when stored at 25℃ except for SHE 0.5% NLC. As a result of total phenol contents, ABTS, and H2O2 assay, SHE NLC showed relatively similar values when stored at 25℃ compared to 65℃. This study confirmed that SHE can be effectively encapsulated with NLC, and at 25℃, NLC had more stable particle properties and antioxidant activity for 28 days.
Hye-Yoon Yi,Ji-Yeon Chun 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
Immature Citrus unshiu is a good source of polyphenol and flavonoid supplements like hesperidin compared to mature citrus fruit. However, hesperidin which is contained in large amounts in citrus fruits has been known to have low water solubility, so increasing the water solubility is expected to improve the bioavailability and process quality. The objective of this study was to optimize the spray drying (SD) process for microencapsulation of immature Citrus unshiu concentrate (ICUC) using response surface methodology (RSM). A Box-Behnken design was applied and three different parameters were estimated as factors: inlet temperature (IT, 160∼200℃), aspirator (AR, 90∼100%), and maltodextrin concentration (MD, 12∼20%). The optimized condition comprised an IT of 200℃, AR of 99.75%, and the MD concentration of 20%, respectively. The maximum dry yield of 15.75%, the minimum water activity of 0.080, and the minimum particle size of 346.44 nm were obtained in an optimal condition. This study confirms that the functional components of immature Citrus unshiu can be effectively encapsulated by the spray-drying method with the optimal condition.
HCV : PE-098 ; Myasthenia gravis triggered by antiviral therapy for chronic hepatitis C
( Hye In Kim ),( Tae Hun Kim ),( Il Hwan Moon ),( Kwon Yoo,),( Sun Young Yi ),( Sung Ae Jung ),( Ki Nam Shim ),( Hye Kyung Jung ),( Seong Eun Kim ),( Won Yung Cho ),( So Yoon Yoon ),( Eun Mi Song ),( 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.1
Myasthenia gravis (MG) is an uncommon disease characterized by muscular weakness and fatigability, caused in 85% of the cases by Acetylcholine receptor (AChR) antibodies. And it is reported as a rare side effect of interferon administration which can develop during chronic hepatitis C treatment. And about 15% of MG patients have thymoma while half of the patients with thymoma eventually develop MG. But it is hardly reported that MG was triggered by antiviral therapy in patient with thymoma. We experienced a rare case of myasthenia gravis induced by antiviral therapy for chronic hepatitis C in patient with mediastinal thymoma. A 47-year-old male complained of diplopia after 9 weeks of administration of peginterferon and ribavirin. A brain imaging study showed no abnormality but we diagnosed as MG by positive repetitive nerve stimulation test and positive anti AChR antibody. And we found thymoma after chest CT scan.
HCV, Alcoholic : PE-098 ; Myasthenia gravis triggered by antiviral therapy for chronic hepatitis C
( Hye In Kim ),( Tae Hun Kim ),( Il Hwan Moon ),( Kwon Yoo ),( Sun Young Yi ),( Sung Ae Jung ),( Ki Nam Shim ),( Hye Kyung Jung ),( Seong Eun Kim ),( Won Yung Cho ),( So Yoon Yoon ),( Eun Mi Song ),( 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.-
Myasthenia gravis (MG) is an uncommon disease characterized by muscular weakness and fatigability, caused in 85% of the cases by Acetylcholine receptor (AChR) antibodies. And it is reported as a rare side effect of interferon administration which can develop during chronic hepatitis C treatment. And about 15% of MG patients have thymoma while half of the patients with thymoma eventually develop MG. But it is hardly reported that MG was triggered by antiviral therapy in patient with thymoma. We experienced a rare case of myasthenia gravis induced by antiviral therapy for chronic hepatitis C in patient with mediastinal thymoma. A 47-year-old male complained of diplopia after 9 weeks of administration of peginterferon and ribavirin. A brain imaging study showed no abnormality but we diagnosed as MG by positive repetitive nerve stimulation test and positive anti AChR antibody. And we found thymoma after chest CT scan.
LT, Others : PE-131 ; A case of Caroli syndrome in adult
( So Yoon Yoon ),( Tae Hun Kim ),( Il Hwan Moon ),( Kwon Yoo ),( Sun Young Yi ),( Sung Ae Jung ),( Ki Nam Shim ),( Hye Kyung Jung ),( Seong Eun Kim ),( Won Yung Cho ),( Hye In Kim ),( Eun Mi Song ),( 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.1
Caroli syndrome is a rare congenital disorder of intrahepatic bile ducts that is characterized by intrahepatic bile duct dilatation and prominent fibrosis in the portal area. In Korea, only 2 cases have been reported in adult age. A 23 year old male visited emergency room for hematemesis. He had received splenectomy for unclear causes several years ago. He didn’t drink alcohol and serologic tests for viral hepatitis were all negative. Liver imaging study revealed multiple intrahepatic large bile duct dilatation with central enhancing dots which acknowledged the presence of Caroli’s disease. Portal hypertension is not common manifestation of Caroli’s disease itself but a major problem when it combined with congenital hepatic fibrosis. Liver biopsy was performed and showed irregular fibrosis containing small bile ducts. He was counseled for the future liver transplantation. We present a rare case of Caroli syndrome confirmed by CT and liver biopsy in adult.