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Gill, S.S.,Oh, H.W.,Lee, D.W.,Roh, J.Y.,Park, H.W.,Jin, B.R.,Je, Y.H.,Kang, S.K. 東亞大學校附設遺傳工學硏究所 1998 遺傳工學硏究 Vol.- No.5
J.Y.ROH,H.W.PARK,Y.H.JE,D.W.LEE,B.R.JIN, H.W.OH,S.S.GILL AND S.K.KANG.1997. Bacillus thuringiensis NTB-1 isolated from soil samples in Korea produces ovoidal parasporal inclusions with proteins of approximately 24-40kDa in size. Although serological study indicated that the isolate has a flagella (H) antigen identical with subsp. israelensis, it seemed to be non-insecticidal against Lepidoptera and Coleoptera as well as Diptera. To investigate the activity of non-insecticidal B.thuringiensis transformed with insecticidal crystal protein genes, cryIVD and cytA genes of B. thuringiensis subsp. morrisoni PG-14, highly toxic to mosquito larvae, were introduced into the isolate NTB-1. The expression of mosquitocidal crystal protein genes in NTB-1 was characterized by SDS-PAGE analysis and electron microscopy. The results showed that crystalline inclusions of host, CryIVD and CytA were stably expressed in the transformant. However, the mosquitocidal activity of transformant was similar to that of B. thuringiensis subsp. kurstaki Cry-B harbouring cryIVD and cytA genes, demonstrating that a synergistic effect by an interaction of both introduced insecticidal and resident non-insecticidal crystal proteins was not observed.
Kang, B.Y.,Lee, S.S.,Song, M.S.,Cho, K.K.,Han, S.H.,Cho, B.K. Elsevier 2016 CURRENT APPLIED PHYSICS Vol.16 No.9
<P>Emergence of anomalous weak ferromagnetism in geometrically frustrated magnetic system of R1-xYxB4 (R = Tb and Dy) is quite interesting [Phys. Rev. B 91, 024414 (2015)]. In order to study the weak ferromagnetism in other compounds, the magnetic properties of R1-xYxB4 (R = Sm, Gd, and Er) were investigated. The anomalous weak ferromagnetism was also found to occur in all compounds, R1-xYxB4 (R = Sm, Gd, and Er). The weak ferromagnetism is revealed in the magnetic easy plane, (001), for R1-xYxB4 (R = Sm and Gd) and along the magnetic easy axis, [001], for R1-xYxB4 (R = Er). The magnitude of saturated magnetic moment at T = 2 K shows a strong dependence on Y-concentration, i.e., the maximum magnitude occurs at x approximate to 0.3 for all compounds. The general magnetic properties of weak ferromagnetism is quite similar to the weak ferromagnetism in R1-xYxB4 (R = Tb, Dy). Therefore, it is experimentally demonstrated that the emergence of weak ferromagnetism, induced by non-magnetic substitution in a magnetically frustrated system, is the universal feature in RB4 compounds. (C) 2016 Elsevier B.V. All rights reserved.</P>
Lee, J.Y.,Kang, C.S.,Beom, H.R.,Jang, Y.R.,Altenbach, S.B.,Lim, S.H.,Kim, Y.M.,Park, C.S. Academic Press 2017 Journal of cereal science Vol.73 No.-
<P>DH2O, a new wheat mutant missing low-molecular weight glutenin subunits encoded by the Glu-B3 locus, was discovered among double haploid lines obtained from a cross between the Korean wheat cultivars Keumkang and Olgeuru. Absence of the Glu-B3 LMW-GS proteins was determined by one-dimensional gel electrophoresis (SDS-PAGE) and confirmed by two-dimensional gel electrophoresis (2-DGE) and tandem mass spectrometry (MS/MS). The deletion of Glu-B3 genes was also demonstrated using allele specific DNA markers. Basic agronomic traits, protein content, dough mixing properties and bread loaf volume of DH2O and parental wheat cultivars were evaluated in field-grown wheat over a two year period. This mutant is a valuable resource for understanding the function of individual LMW-GS alleles or genes at the Glu-B3 locus using either breeding or biotechnology approaches. (C) 2017 Elsevier Ltd. All rights reserved.</P>
C.K. Kang,H.S. Nam,Y.K. Lee,S.B. Lee,B.M. Lee,Y.J. Oh,H.J. Jee,M.K. Hong,K.W. Jung,Y.J. Lee,Y.H. Choi 한국유기농업학회 2011 韓國有機農業學會誌 Vol.19 No.S
Among the developed bío-degradable polymer fílms as compared wíth transparent fílm(Whíte), black polymer fílm was sígnífícantly more effectíve for controllíng weeds ín red pepper. Also, we found that whíte and black polymer mulchíng had 81.8% and 97.9% of managing weed controllíng effects in rice, respectively. Compared to nonmulched rice paddy with water supply, the non-mulched rice paddy wíthout any water supply has stopped its growth at 41 days after transplantíng, whíle polymer -mulched rice paddy without water supply had about 60% of normally growing rice plants. This shows the polymer treatment has a remarkable effect on water and power saving, solution of herbicidal resistance, avoidance of herbícidal influence to eco-system etc. When the naturally decomposíng polymer was used, a temperature was elevated as high as 4.7 ℃ on maximum and 2.6 ℃ on average. Also the naturally decomposing polymer accelerated rooting by 7 days and lowered a stress level from transplanting. The weed control effect mulched by polymer was remarkable as 98. 7%. The p이ymer now, after 294 days treated on the rice paddy, has been completely decomposed.
Jung, W. H.,Kang, D.‐,H.,Han, J. Y.,Jang, J. H.,Gu, B.‐,M.,Choi, J.‐,S.,Jung, M. H.,Choi, C.‐,H.,Kwon, J. S. Blackwell Publishing Ltd 2011 Acta psychiatrica Scandinavica Vol.123 No.5
<P>Jung WH, Kang D‐H, Han JY, Jang JH, Gu B‐M, Choi J‐S, Jung MH, Choi C‐H, Kwon JS. Aberrant ventral striatal responses during incentive processing in unmedicated patients with obsessive–compulsive disorder.</P><P><B>Objective: </B> Obsessive–compulsive disorder (OCD) is characterized by the dysfunction of control and reward mechanisms. However, only few neuroimaging studies of OCD have examined the reward processing. We examined the neural responses during incentive processing in OCD.</P><P><B>Method: </B> Twenty unmedicated patients with OCD and 20 age‐, sex‐, and IQ‐matched healthy controls underwent functional magnetic resonance imaging while performing a modified monetary incentive delay task.</P><P><B>Results: </B> Compared with controls, patients with OCD showed increased ventral striatal activation in the no‐loss minus loss outcome contrast and a significant positive correlation between the ventral striatal activation and compulsion symptom severity. In addition, patients with OCD showed increased activations in the frontostriatal regions in the gain minus no‐gain outcomes contrast. During loss anticipation, patients with OCD showed less activations in the lateral prefrontal and inferior parietal cortices. However, during gain anticipation, patients with OCD and healthy controls did not differ in the ventral striatal activation.</P><P><B>Conclusion: </B> These findings provide neural evidence for altered incentive processing in unmedicated patients with OCD, suggesting an elevated sensitivity to negatively affect stimuli as well as dysfunction of the ventral striatum.</P>
Roh, J.-H.,Kang, M.,Wei, B.,Yoon, R.-H.,Seo, H.-S.,Bahng, J.-Y.,Kwon, J.-T.,Cha, S.-Y.,Jang, H.-K. Elsevier 2016 Poultry science Vol.95 No.5
<P>The production performance, efficacy, and safety of two types of vaccines for infectious bursal disease virus (IBDV) were compared with in-ovo vaccination of Cobb 500 broiler chickens for gross and microscopic examination of the bursa of Fabricius, bursa/body weight (b/B) ratio, flow cytometry, and serologic response to Newcastle disease virus (NDV) vaccination. One vaccine was a recombinant HVT-IBD vector vaccine (HVT as for herpesvirus of turkeys) and the other was an intermediate plus live IBDV vaccine. A significant difference was detected at 21 d. Eight of 10 chickens that received the IBDV live vaccine had severe bursal lesions and a relatively low b/B ratio of 0.95, and an inhibited NDV vaccine response. On the other hand, the HVT-IBD vector vaccine resulted in mild bursal lesions and a b/B ratio of 1.89. Therefore, the live vaccine had lower safety than that of the HVT-IBD vector vaccine. To determine the protective efficacy, chickens were intraocularly challenged at 24 d. Eight of 10 chickens in the IBDV live vaccination group showed gross and histological lesions characterized by hemorrhage, cyst formation, lymphocytic depletion, and a decreased b/B ratio. In contrast, the HVT-IBD vector vaccinated chickens showed mild gross and histological lesions in three of 10 chickens with a b/B ratio of 1.36, which was similar to that of the unchallenged controls. Vaccinated chickens showed a significant increase in IBDV antibody titers, regardless of the type of vaccine used. In addition, significantly better broiler flock performance was observed with the HVT-IBD vector vaccine compared to that of the live vaccine. Our results revealed that the HVT-IBD vector vaccine could be used as an alternative vaccine to increase efficacy, and to have an improved safety profile compared with the IBDV live vaccine using in-ovo vaccination against the Korean very virulent IBDV in commercial broiler chickens.</P>
Kim, E-K,Seo, H-S,Chae, M-J,Jeon, I-S,Song, B-Y,Park, Y-J,Ahn, H M,Yun, C-O,Kang, C-Y Macmillan Publishers Limited 2014 Gene therapy Vol.21 No.1
For successful clinical tumor immunotherapy outcomes, strong immune responses against tumor antigens must be generated. Cell-based vaccines compromise one strategy with which to induce appropriate strong immune responses. Previously, we established a natural killer T-cell (NKT) ligand-loaded, adenoviral vector-transduced B-cell-based anticancer cellular vaccine. To enhance tumor antigen delivery to B cells, we established a modified adenoviral vector (Ad-k35) that encoded a truncated form of the breast cancer antigen Her2/neu (Ad-k35HM) in which fiber structure was substituted with adenovirus serotype 35. We observed increased tumor antigen expression with Ad-k35HM in both human and murine B cells. In addition, an Ad-k35HM-transduced B-cell vaccine elicited strong antigen-specific cellular and humoral immune responses that were further enhanced with the additional loading of soluble NKT ligand KBC009. An Ad-k35HM-transduced, KBC009-loaded B-cell vaccine efficiently suppressed the in vivo growth of established tumors in a mouse model. Moreover, the vaccine elicited human leukocyte antigen (HLA)-A2 epitope-specific cytotoxic T-cell responses in B6.Cg (CB)-Tg (HLA-A/H2-D) 2Enge/Jat mice. These findings indicated that the Ad-k35 could be appropriate for the preclinical and clinical development of B-cell-based anticancer immunotherapies.