한국인에서 DXS7132 유전좌와 GATA31D10 유전좌의 다형성에 관한 연구

안종성,장영길,이숭덕,신창호,이윤성,이정빈 大韓法醫學會 2000 대한법의학회지 Vol.24 No.1

The validation study for two STR loci on X-chromosome, DXS7132 and GATA31D10, was done including allelic distribution and frequency of each allele to use these results for individual identification and paternity testing. For 496 unrelated Koreans, above two STR loci were amplified simultaneously using duplex PCR amplification method. The amplified products were analyzed by polyarylamide gel electrophoresis followed by silver staining. In male DXS7132 locus revealed 7 different alleles ranging from 276bp to 300bp. The largest allele was consisted of 14 repetition of [TCTA] unit and took 0.3417. The allele 15 followed next as 0.3165 and allele 13 as 0.1726. In female general distribution was same except one allele, allele 18 was found additionally. The heterozygosity was 0.7706 and 23 different genotypes were found. Polymorphism information content(PIC) was 0.727. Two cases of mutation were noted in DXS7132 locus In both male and femal 7 different alleles were noted in GATA31D10 locus and the alleles ranged from 195bp to 231bp. The allele 15(199bp) took the majority of all as 0.825. The other alleles showed rather relatively low frequency. The heterozygosity was 0.2385 and 11 different genotypes were found. PIC was 0.2521, and no mutation was noted in GATA31D10 locus. Considering these two loci together, 22 different halpotype were noted.

d-pinitol regulates Th1/Th2 balance via suppressing Th2 immune response in ovalbumin-induced asthma

Lee, J.S.,Lee, C.M.,Jeong, Y.I.,Jung, I.D.,Kim, B.H.,Seong, E.Y.,Kim, J.I.,Choi, I.W.,Chung, H.Y.,Park, Y.M. North-Holland Pub ; Elsevier Science Ltd 2007 FEBS letters Vol.581 No.1

d-pinitol has been demonstrated to exert insulin-like and anti-inflammatory activities. However, its anti-allergic effect in the Th1/Th2 immune response is poorly understood. Recently, it was shown that T-bet and GATA-3 are master Th1 and Th2 regulatory transcription factors. In this study, we have attempted to determine whether d-pinitol regulates Th1/Th2 cytokine production, T-bet and GATA-3 gene expression in OVA-induced asthma model mice. We also examined to ascertain whether d-pinitol could influence eosinophil peroxidase (EPO) activity. After being sensitized and challenged with ovalbumin (OVA) showed typical asthmatic reactions. These reactions included an increase in the number of eosinophils in bronchoalveolar lavage (BAL) fluid, an increase in inflammatory cell infiltration into the lung tissue around blood vessels and airways, airway luminal narrowing, and the development of airway hyper-responsiveness (AHR). The administration of d-pinitol before the last airway OVA challenge resulted in a significant inhibition of all asthmatic reactions. Accordingly, this study may provide evidence that d-pinitol plays a critical role in the amelioration of the pathogenetic process of asthma in mice. These findings provide new insight into the immunopharmacological role of d-pinitol in terms of its effects in a murine model of asthma, and also broaden current perspectives in our understanding of the immunopharmacological functions of d-pinitol.

DBA/2J 생쥐에서 점안 안압하강제 투여 후 망막신경세포구성의 변화

박명희,이경민,권재성,문정일.Myoung-Hee Park. M.D.. Kyung-Min Lee. M.D.. Jae-Sung Kwon. Ph.D.. Jung-Il Moon. M.D. 대한안과학회 2005 대한안과학회지 Vol.46 No.12

Purpose: The DBA/2J (D2) mouse is a transgenic mouse with pigmentary glaucoma. In a previous study, we found a reduction of inner retinal thickness in D2 mice. We attempted to discover the effect of eye drops on the retina of D2 mice. Methods: Ten-month-old D2 mouse eyes were treated with Timoptic XE?, Cosopt?, and Xalacom? eye drops for a 1-month period. Immunohistochemical staining was performed on the mouse eye sections for analysis. Results: In the control group, GABA and OPN immunoreactivity were markedly decreased and NOS immunoreactivity was increased. In all experimental group, GABA and OPN immunoreactivity were increased, and OPN immunoreactivity was markedly increased especially in the Cosopt?group. NOS immunoreactivity was decreased in all experimental groups. There was no difference in glycine immunoreactivity between the control and experimental groups. Conclusions: Combination anti-glaucoma eye-drops to the D2 mouse changed the retinal neuronal population and these drugs might play an important role in the mechanisms of retinal neuronal death; potential strategies for neuroprotection should therefore be evaluated.

Valeriana officinalis extract and its main component, valerenic acid, ameliorate d-galactose-induced reductions in memory, cell proliferation, and neuroblast differentiation by reducing corticosterone levels and lipid peroxidation

Nam, S.M.,Choi, J.H.,Yoo, D.Y.,Kim, W.,Jung, H.Y.,Kim, J.W.,Kang, S.Y.,Park, J.,Kim, D.W.,Kim, W.J.,Yoon, Y.S.,Hwang, I.K. Pergamon Press ; Elsevier Science Ltd 2013 Experimental Gerontology Vol.48 No.11

Valeriana officinalis is used in herbal medicine of many cultures as mild sedatives and tranquilizers. In this study, we investigated the effects of extract from valerian root extracts and its major component, valerenic acid on memory function, cell proliferation, neuroblast differentiation, serum corticosterone, and lipid peroxidation in adult and aged mice. For the aging model, d-galactose (100mg/kg) was administered subcutaneously to 6-week-old male mice for 10weeks. At 13weeks of age, valerian root extracts (100mg/kg) or valerenic acid (340μg/kg) was administered orally to control and d-galactose-treated mice for 3weeks. The dosage of valerenic acid (340μg/kg), which is the active ingredient of valerian root extract, was determined by the content of valerenic acid in valerian root extract (3.401+/-0.066mg/g) measured by HPLC. The administration of valerian root extract and valerenic acid significantly improved the preferential exploration of new objects in novel object recognition test and the escape latency, swimming speeds, platform crossings, and spatial preference for the target quadrant in Morris water maze test compared to the d-galactose-treated mice. Cell proliferation and neuroblast differentiation were significantly decreased, while serum corticosterone level and lipid peroxidation in hippocampus were significantly increased in the d-galactose-treated group compared to that in the control group. The administration of valerian root extract significantly ameliorated these changes in the dentate gyrus of both control and d-galactose-treated groups. In addition, valerenic acid also mitigated the d-galactose-induced reduction of these changes. These results indicate that valerian root extract and valerenic acid enhance cognitive function, promote cell proliferation and neuroblast differentiation, and reduce serum corticosterone and lipid peroxidation in aged mice.

3,7-Dihydroxy-3,7-dioxoperhydro-1,5,3,7-diazadiphosphocine-1,5-diacetic acid 유도체의 합성과 구조분석

정대일,이도훈 東亞大學校 附設 環境問題硏究所 2007 硏究報告 Vol.29 No.1

In the last few tears, great efforts have been devoted to the development of efficient ligands for transition metal ions, in order to obtain complexes whose stability, physical properties and biodistribution could make them suitable for application as contrast agents for magnetic resonance imaging(MRI), diagnostic- therapeutic radiopharmaceuticals, or f1uorescent bioassays To the best of our knowledge, there are few reports involving the reation of hypophosphorous acid with formaldehyde and primary amines. Our interest in α-aminoalkylphosphinic and bis(α-aminoalky) phosphinic acids lies in their coordination ability towards metal ions, thereby providing useful structure motifs for the preparation of multi-sited ligands. πle reaction was then perfOI1Tl<:화 adopting glycine, aspartic acid, or glutamic acid as a model arninoacid in aq. HCl. The heterαyclic ligand synthesised by glycine is 3,7-dihydroxy-3,7-dioxoperhy dro-l,5,3,7-diazadiphosphocine-l,5-diacetic acid, and product synthesized by Lglutamic acid is 2- [5-(1,3-Di-carboxypropy])-3,7-dihydroxy-3,7-dioxo-315,715-[1,5,3,7l d경adiphosphocan-l-yll-pentan어ioic acid. Synthesis of acid compound by trearment of L -aspartic acid is in progress.

Characterization of a Substance from Photobacterium damsela subsp. piscicida that Non-specifically Binds to Streptavidin

Jung, Tae Sung,Oh, Myung Joo,D . Thompson,Aelexandra Adams 한국수산학회 2000 Fisheries and Aquatic Sciences Vol.3 No.1

Non-specific reaction has been a problem in doing, especially, research and diagnosis for infectious agents. Avidin-biotin-peroxidase complex (ABC) techniques has widely been used to amplify a reaction. Photobacterium damsela subsp. piscicdia (formerly Pasteurella piscicida) exhibited a capacity to bind with streptavidin non-specifically. The band, estimated 26 K Da in Western blotted paper, was blocked with biotin but incompletely. In an attempt to explore an involvement of the non-specific substance in attaching piscine cells, cell attachment test performed using anti- Ph. d. subsp piscicida sera raised mouse and rabbit exhibited slightly blocking effects for Mediterranean (I736) and significantly for Japanese (Sp 92144) isolate. Biotin decreased the attachment ability significantly for Sp92144 but it was not effective to I736. Both isolates showed greatly enhanced attachment ability with poly-L-lysin. The non-specific binding substance was contained in bacterial extracellular products (ECPs). The substance was able to purified with 2-imminobiotin affinity column, the purified substance appeared to have 4 bands in silver staining, and had a carbohydrate branch. This purified substance showed cytotoxic effects selectively between 5 piscine cell lines. Moreover, it stimulated rainbow trout macrophage in terms of reduction of cytochrome c as well as yeast phagocytosis, significantly.

메탈파우더/섬유강화 복합재료의 전자파 차폐효과

정동원,한길영,안동규,이동기,김진석 朝鮮大學校 機械技術硏究所 2004 機械技術硏究 Vol.7 No.1

The main objectives of this research work are to develop conductive glass fiber woven roving and carbon fiber unidirection fabric composite materials and to determine their electromagnetic shielding effectiveness (EMSE). Epoxy is the matrix phase and glass. carbon fiber are the reinforcement phase of the composite material. Metal powders are incorporated as conductive fillers to provide the electromagnetic shielding properties of the composite material. The amount of metal powder in the composite material is varied by changing the metal powder composition, woven roving and unidirection (fabric) structure. The EMSE of various fabric composites is measured in the frequency range from 300MHz to 800MHz. The variations of EMSE of woven roving and unidirection composites with fabric structure, metal powder compositions are described. Suitability of conductive fabric composites for electromagnetic shielding applications is also discussed

Mass dependent top forward-backward asymmetry in the effective Lagrangian approach: Addendum to ''Model independent analysis of the forward-backward asymmetry of top quark production at the Tevatron''

Jung, D.W.,Ko, P.,Lee, J.S. North-Holland Pub. Co 2012 Physics letters: B Vol.708 No.1

Recently the CDF and the D0 Collaborations presented the data on the top forward-backward (FB) asymmetry A<SUB>FB</SUB> as functions of M<SUB>tt@?</SUB> and Δy=y<SUB>t</SUB>-y<SUB>t@?</SUB>. We study these observables in the effective Lagrangian approach with dimension-6 qq@?tt@? contact interactions, and compare with the CDF and D0 data. When we stay within the validity region of the effective Lagrangian approach, the mass dependent top FB asymmetry turns out to be smaller than the CDF data, more than 2-σ away. If this discrepancy remains in the future data with better statistics, it would imply that the effective Lagrangian approach is not adequate for the top FB asymmetry, and a new physics scale around a few hundred GeV in the t- or u-channel may be responsible for the observed top FB asymmetry.

Aberrant ventral striatal responses during incentive processing in unmedicated patients with obsessive–compulsive disorder

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>

DISCRETE SOBOLEV ORTHOGONAL POLYNOMIALS AND SECOND ORDER DIFFERENCE EQUATIONS

Jung, H.S.,Kwon, K.H.,Lee, D.W. Korean Mathematical Society 1999 대한수학회지 Vol.36 No.2

Let {Rn($\chi$)}{{{{ { } atop {n=0} }}}} be a discrete Sobolev orthogonal polynomials (DSOPS) relative to a symmetric bilinear form (p,q)={{{{ INT _{ } }}}} pqd$\mu$0 +{{{{ INT _{ } }}}} p qd$\mu$1, where d$\mu$0 and d$\mu$1 are signed Borel measures on . We find necessary and sufficient conditions for {Rn($\chi$)}{{{{ { } atop {n=0} }}}} to satisfy a second order difference equation 2($\chi$) y($\chi$)+ 1($\chi$) y($\chi$)= ny($\chi$) and classify all such {Rn($\chi$)}{{{{ { } atop {n=0} }}}}. Here, and are forward and backward difference operators defined by f($\chi$) = f($\chi$+1) - f($\chi$) and f($\chi$) = f($\chi$) - f($\chi$-1).