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Yeongseon Joo,Taeyoon Kim,Dang Khoa Nguyen,Chungman Kim 한국농업경제학회 2021 農業經濟硏究 Vol.62 No.3
Fresh Korean ginseng needs more credibility in the Vietnam market since fresh ginseng imported from China is increasing, and the Vietnam government promotes its national Ngoc Linh ginseng brand. Therefore, this study determines factors of three shopping places (the department store, supermarket, and ginseng specialty store), the certification label of good agriculture products (Viet GAP), Korean nationality, and three famous private brands of CheongKwanJang, HanSamIn, and Geumhong affecting Vietnamese consumers fresh ginseng choices based on 897 respondents from Hanoi and Hochiminh City in January 2018. Conditional and random parameter logits are used to find differences in the independent assumptions relaxation among irrelevant alternatives. Hausman test for IIA assumptions holds for the choice of the department store, ginseng specialty store, and None. Overall results show that shopping places, the Korean national flag, and the existence of VietGap positively affect Vietnam consumers choices. However, none of the Korean private brands could significantly affect Vietnamese choice for fresh ginseng products. The shopping place of ginseng specialty stores gets the highest WTP, followed by supermarkets and department stores. Korean national flag also shows a high WTP, which is higher than Vietgap, a certificate from Vietnam agricultural products. Female consumers tend to pay more WTP than males. Hochiminh consumers are willing to pay more than Hanoi consumers on average. Of course, the high-income consumers tend to pay more WTP than the low-income group. However, the low-income groups still demand fresh ginseng at a significant price. Understanding different price effects by consumer groups seem helpful for small and medium enterprises to market their ginseng products into Vietnam by further considering the origin of Korean nationality.
Wood Decay Fungi in South Korea: Polypores from Seoul
( Yeongseon Jang ),( Seokyoon Jang ),( Jaejung Lee ),( Hwanhwi Lee ),( Hanbyul Lee ),( Young Min Lee ),( Joo Hyun Hong ),( Mihee Min ),( Young Woon Lim ),( Changmu Kim ),( Jae Jin Kim ) 한국균학회 2014 韓國菌學會誌 Vol.42 No.2
In Seoul, a majority of plant communities have undergone significant changes over the last few decades; however, how wood decay fungi have responded and adapted to the changes in vegetation remains unknown. Through an ongoing investigation of Korean indigenous fungi, ca. 300 specimens with poroid basidiocarp were collected in Seoul during 2008~2012. Morphological examination and molecular analysis using the internal transcribed spacer and nuclear large subunit ribosomal DNA region sequences helped identify 38 species belonging to 28 genera, 10 families, and 5 orders in this area. Among them, three polypores, Abundisporus pubertatis, Coriolopsis strumosa, and Perenniporia maackiae were found to be new to South Korea.
Wood Decay Fungi in South Korea: Polypores from Seoul
Jang, Yeongseon,Jang, Seokyoon,Lee, Jaejung,Lee, Hwanhwi,Lee, Hanbyul,Lee, Young Min,Hong, Joo-Hyun,Min, Mihee,Lim, Young Woon,Kim, Changmu,Kim, Jae-Jin The Korean Society of Mycology 2014 Mycobiology Vol.42 No.2
In Seoul, a majority of plant communities have undergone significant changes over the last few decades; however, how wood decay fungi have responded and adapted to the changes in vegetation remains unknown. Through an ongoing investigation of Korean indigenous fungi, ca. 300 specimens with poroid basidiocarp were collected in Seoul during 2008~2012. Morphological examination and molecular analysis using the internal transcribed spacer and nuclear large subunit ribosomal DNA region sequences helped identify 38 species belonging to 28 genera, 10 families, and 5 orders in this area. Among them, three polypores, Abundisporus pubertatis, Coriolopsis strumosa, and Perenniporia maackiae were found to be new to South Korea.
( Seokyoon Jang ),( Yeongseon Jang ),( Chul-whan Kim ),( Hanbyul Lee ),( Joo-hyun Hong ),( Young Mok Heo ),( Young Min Lee ),( Dong Wan Lee ),( Hyang Burm Lee ),( Jae-jin Kim ) 한국균학회 2017 Mycobiology Vol.45 No.1
Despite the huge worldwide diversity of Trichoderma (Hypocreaceae, Ascomycota), only about 22 species have been reported in Korea. Thus, between 2013 and 2015, soil-derived Trichoderma spp. were isolated to reveal the diversity of Korean Trichoderma. Phylogenetic analysis of translation elongation factor 1 alpha gene was used for identification. Among the soilderived Trichoderma, Trichoderma albolutescens, T. asperelloides, T. orientale, T. spirale, and T. tomentosum have not been previously reported in Korea. Thus, we report the five Trichoderma species as new in Korea with morphological descriptions and images.
Han, Hee Dong,Byeon, Yeongseon,Kang, Tae Heung,Jung, In Duk,Lee, Jeong-Won,Shin, Byung Cheol,Lee, Young Joo,Sood, Anil K,Park, Yeong-Min DOVE MEDICAL PRESS 2016 INTERNATIONAL JOURNAL OF NANOMEDICINE Vol.11 No.-
<P>Dendritic cells (DCs) are potent professional antigen-presenting cells that are capable of initiating a primary immune response and activating T cells, and they play a pivotal role in the immune responses of the host to cancer. Prior to antigen presentation, efficient antigen and adjuvant uptake by DCs is necessary to induce their maturation and cytokine generation. Nanoparticles (NPs) are capable of intracellular delivery of both antigen and adjuvant to DCs. Here, we developed an advanced poly(<SMALL>D</SMALL>,<SMALL>L</SMALL>-lactide-co-glycolide) (PLGA)-NP encapsulating both ovalbumin (OVA) as a model antigen and polyinosinic-polycytidylic acid sodium salt (Toll-like receptor 3 ligand) as an adjuvant to increase intracellular delivery and promote DC maturation. The PLGA-NPs were taken up by DCs, and their uptake greatly facilitated major histocompatibility class I antigen presentation in vitro. Moreover, vaccination with PLGA-NP-treated DCs led to the generation of ovalbumin-specific CD8<SUP>+</SUP> T cells, and the resulting antitumor efficacy was significantly increased in EG.7 and TC-1 tumor-bearing mice compared to control mice (<I>P</I><0.01). Taken together, these findings demonstrated that the PLGA-NP platform may be an effective method for delivering tumor-specific antigens or adjuvants to DCs.</P>
Kim, Ga Hee,Won, Ji Eun,Byeon, Yeongseon,Kim, Min Gi,Wi, Tae In,Lee, Jae Myeong,Park, Yun-Yong,Lee, Jeong-Won,Kang, Tae Heung,Jung, In Duk,Shin, Byung Cheol,Ahn, Hyung Jun,Lee, Young Joo,Sood, Anil K. TaylorFrancis 2018 DRUG DELIVERY Vol.25 No.1
<P><B>Abstract</B></P><P>Angiogenesis plays an essential role in the growth and metastasis of tumor cells, and the modulation of angiogenesis can be an effective approach for cancer therapy. We focused on silencing the angiogenic gene PLXDC1 as an important factor for anti-angiogenesis tumor therapy. Herein, we developed PLXDC1 small interfering siRNA (siRNA)-incorporated chitosan nanoparticle (CH-NP/siRNA) coated with hyaluronic acid (HA) to target the CD44 receptor on tumor endothelial cells. This study aimed to improve targeted delivery and enhance therapeutic efficacy for tumor anti-angiogenesis. The HA-CH-NP/siRNA was 200 ± 10 nm in size with a zeta potential of 26.4 mV. The loading efficiency of siRNA to the HA-CH-NP/siRNA was up to 60%. The selective binding of HA-CH-NP/siRNA to CD44-positive tumor endothelial cells increased by 2.1-fold compared with that of the CD44 nontargeted CH-NP/siRNA. PLXDC1 silencing by the HA-CH-NP/siRNA significantly inhibited tumor growth in A2780 tumor-bearing mice compared with that in the control group (<I>p</I> < .01), and mRNA expression of PLXDC1 was significantly reduced in the HA-CH-NP/siRNA-treated group. Furthermore, treatment with HA-CH-NP/siRNA resulted in significant inhibition of cell proliferation (<I>p</I> < .001), reduced microvessel density (<I>p</I> < .001), and increased cell apoptosis (<I>p</I> < .001). This study demonstrates that HA-CH-NP/siRNA is a highly selective delivery platform for siRNA, and has broad potential to be used in anti-angiogenesis tumor therapy.</P>