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Jung, S.C.,Yeom, J.A.,Kim, J.-H.,Ryoo, I.,Kim, S.C.,Shin, H.,Lee, A.L.,Yun, T.J.,Park, C.-K.,Sohn, C.-H.,Park, S.-H.,Choi, S.H. American Society of Neuroradiology 2014 American journal of neuroradiology Vol.35 No.6
<P><B>BACKGROUND AND PURPOSE:</B></P><P>The usefulness of pharmacokinetic parameters for glioma grading has been reported based on the perfusion data from parts of entire-tumor volumes. However, the perfusion values may not reflect the entire-tumor characteristics. Our aim was to investigate the feasibility of glioma grading by using histogram analyses of pharmacokinetic parameters including the volume transfer constant, extravascular extracellular space volume per unit volume of tissue, and blood plasma volume per unit volume of tissue from T1-weighted dynamic contrast-enhanced perfusion MR imaging.</P><P><B>MATERIALS AND METHODS:</B></P><P>Twenty-eight patients (14 men, 14 women; mean age, 49.75 years; age range, 25–72 years) with histopathologically confirmed gliomas (World Health Organization grade II, <I>n</I> = 7; grade III, <I>n</I> = 8; grade IV, <I>n</I> = 13) were examined before surgery or biopsy with conventional MR imaging and T1-weighted dynamic contrast-enhanced perfusion MR imaging at 3T. Volume transfer constant, extravascular extracellular space volume per unit volume of tissue, and blood plasma volume per unit volume of tissue were calculated from the entire-tumor volume. Histogram analyses from these parameters were correlated with glioma grades. The parameters with the best percentile from cumulative histograms were identified by analysis of the area under the curve of the receiver operating characteristic analysis and were compared by using multivariable stepwise logistic regression analysis for distinguishing high- from low-grade gliomas.</P><P><B>RESULTS:</B></P><P>All parametric values increased with increasing glioma grade. There were significant differences among the 3 grades in all parameters (<I>P</I> < .01). For the differentiation of high- and low-grade gliomas, the highest area under the curve values were found at the 98th percentile of the volume transfer constant (area under the curve, 0.912; cutoff value, 0.277), the 90th percentile of extravascular extracellular space volume per unit volume of tissue (area under the curve, 0.939; cutoff value, 19.70), and the 84th percentile of blood plasma volume per unit volume of tissue (area under the curve, 0.769; cutoff value, 11.71). The 98th percentile volume transfer constant value was the only variable that could be used to independently differentiate high- and low-grade gliomas in multivariable stepwise logistic regression analysis.</P><P><B>CONCLUSIONS:</B></P><P>Histogram analysis of pharmacokinetic parameters from whole-tumor volume data can be a useful method for glioma grading. The 98th percentile value of the volume transfer constant was the most significant measure.</P>
한우 사골, 꼬리, 우족 및 잡뼈 추출물의 이화학적 특성
이진규(J. K. Lee),정지택(J. T. Jeong),최정석(J. S. Choi1),정명옥(M. O. Jung),최양일(Y. I. Choi) 충북대학교 동물생명과학연구소 2017 동물생명과학연구 Vol.9 No.-
This study was conducted to investigate the physico-chemical characteristics of various bone extracts in Hanwoo cattle. The experimental materials are as follows; T1(Shank bone extract), T2(Tail extract), T3(Beef feet extract), and T4(The other bones extract). In the proximate composition, the T1 and T2 showed higher moisture and fat contents than those of T3 and T4(p<0.05), and the T3 had the highest protein content among the bone extracts(p<0.05). The quality properties including salinity, sugar content, turbidity and yellowness(b*) values were significantly higher in the T3 than the other bone extracts(p<0.05). However, the pH value of T3 was significantly lower than the other bone extracts. In the mineral contents, calcium contents of bone extracts were 36.33-48.57mg/kg, and the content of phosphorus was the lowest in T1(4.62mg/kg) and T2(19.88mg/kg) was the highest(p<0.05). Contents of sodium and potassium were the highest in T3(215.83mg/kg) and T2(54.59mg/kg), while the content of magnesium was the lowest in T3(12.28mg/kg). In conclusion, these results could be suggested to be the basis information for processed meat extract products industry in korea using Hanwoo bone extract.
이제룡,서종태,정재두,이진우,하영주,이정일,곽석준,이중동 한국동물자원과학회 2003 한국축산학회지 Vol.45 No.6
In a trial involving 240pigs, the proximate composition, physico-chemical properites, color, amino acid composition and fatty acid composition of loin muscle were investigated in feeding various finished pig fees. The treatments included feeding control) the low-nutrient density diet(2,960㎈/㎏ ME, 12.25% CP, 0.41% lysine and 0.70% Ca), T1) the medium-nutrient density diet(3,220㎈/㎏ ME, 15.50% CP, 0.87% lysine and 0.90% Ca) and T2) the hight-nutrient density diet(3,350㎈/㎏ ME, 17.50% CP, 1.05% lysine and 0.90% Ca). The crude ash contents of T1 were significantly(p<0.05) higher than those of control and T2. The ?_(u) of T2 were significantly higher than those of control and T1, but cooking loss were significantly(p<0.05) lower than those of control. In compositions amino acid, aspartic acid, threonine, iso-leucine and histidine of T2 were higher than those of control, but proline and glycine were significantly(p<0.05) lower then those of control. The oleic acid(18:1) contents of control were significantly higher than those of T1 and T2, but the contents of linoleic acid(C18:2) and arachidonic(C20:4) acid were significantly(p<0.05) lower. Inconclusion, the results of the experiments suggest that the high-nutrient density diet for pigs tended to improve the postmortem ?_(u) and cooking loss.
한국 밀식사과원의 정지전정에 따른 수체생장과 생산성 및 경영효율 비교
정혜웅,김경훈,송태영,홍성일,한호균,김귀권,신종협,여덕환,김병철,박준권,Jung, H.W.,Kim, K.H.,Song, T.Y.,Hong, S.I.,Han, H.K.,Kim, K.K.,Shin, J.H.,Yeo, D.H.,Kim, B.C.,Park, J.K. 국립한국농수산대학교 교육개발센터 2017 현장농업연구지 = Journal of practical agricultural resear Vol.19 No.1
The present study conducted a comparison on tree growth and productivity of high-density apple orchards by several orchard management systems: making scaffolds by heading-back and thinning out pruning (T-1), maintaining scaffolds upward and bearing shoots downward (T-2), managing branches slightly upward without heading-back (T-3), keeping leaders downward and shoots pending (T-4), maintaining leaders high and branches horizontal with severe pinching (T-5), making leaders with lower branches vigorous and upper shoots pending (T-6), and controlling very high planting density with bending branches (T-7). In conclusion, the orchards of (T-5) and (T-6) management systems showed a superior performance in controlling tree growth, productivity, and quality of fruits. Also, superior management efficiency was obtained in the orchards of (T-5) and (T-6).
Fabrication of FeSe<sub>1-x</sub> superconducting films with bulk properties
Jung, S.G.,Lee, N.H.,Choi, E.M.,Kang, W.N.,Lee, S.I.,Hwang, T.J.,Kim, D.H. North-Holland 2010 Physica. C, Superconductivity Vol.470 No.22
We have fabricated high-quality FeSe<SUB>1-x</SUB> superconducting films with a bulk T<SUB>c</SUB> of 11-12K on different substrates, Al<SUB>2</SUB>O<SUB>3</SUB>(0001), SrTiO<SUB>3</SUB>(100), MgO(100), and LaAlO<SUB>3</SUB>(100), by using a pulsed laser deposition technique. All the films were grown at a high substrate temperature of 610<SUP>o</SUP>C, and were preferentially oriented along the (101) direction, the latter being to be a key to fabricating of FeSe<SUB>1-x</SUB> superconducting thin films with high T<SUB>c</SUB>. According to the energy dispersive spectroscopy data, the Fe:Se composition ratio was 1:0.90+/-0.02. The FeSe<SUB>1-x</SUB> film grown on a SrTiO<SUB>3</SUB> substrate showed the best quality with a high upper critical magnetic field [H<SUB>c2</SUB>(0)] of 56T.
Kwon, Y.T.,Park, M.S.,Kim, J.D.,Choi, K.Y.,Jung, M.H.,Iyo, A.,Tokiwa, K.,Kim, Y.C.,Lee, S.I. Elsevier 2010 CURRENT APPLIED PHYSICS Vol.10 No.4
By using the Hao-Clem model, we analyzed the equilibrium magnetization of the grain-aligned HgBa<SUB>2</SUB>Ca<SUB>4</SUB>Cu<SUB>5</SUB>O<SUB>12+y</SUB> (Hg1245) with T<SUB>c</SUB>~108K. We obtained thermodynamic parameters, such as the penetration depth [λ<SUB>ab</SUB>(0)] and the coherence length [ξ<SUB>ab</SUB>(0)] from the thermodynamic critical field [H<SUB>c</SUB>] and the Ginzburg-Landau parameter [κ]. Compared to the four layered superconductor HgBa<SUB>2</SUB>Ca<SUB>3</SUB>Cu<SUB>4</SUB>O<SUB>10+y</SUB> (Hg1234), the obtained penetration depth was slightly increased indicating that the Cooper pair density of Hg1245 was decreased, which was one of the reasons why the transition temperature (T<SUB>c</SUB>) of the Hg1245 did not increase as compared to the Hg1234. The expected increase of T<SUB>c</SUB> for the material with the more CuO<SUB>2</SUB> planes was not achieved because of the insufficient doping of the Cooper pairs while adding CuO<SUB>2</SUB> planes.
Kim, Y-R,Kim, I-J,Kang, T W,Choi, C,Kim, K K,Kim, M S,Nam, K I,Jung, C Macmillan Publishers Limited 2014 Oncogene Vol.33 No.37
Characteristically, prostate cancer (PCa) cells exhibit marked decrease in intracellular zinc; however, the mechanism responsible is not clearly understood. HOXB13 is involved in PCa progression and is overexpressed in castration-resistant PCa. DNA microarray analysis of LNCaP Pca cells showed that ZnT zinc output transporters were strikingly upregulated among androgen-independent HOXB13 target genes. Furthermore, exogenous HOXB13 caused intracellular zinc concentrations to fall in PCa cells, stimulated NF-κB-mediated signaling by reducing inhibitor of NF-κB alpha (IκBα) and enhanced the nuclear translocation of RelA/p65. Human prostate tumors also exhibited strong inverse correlation between the protein expressions of HOXB13 and IκBα. Consequently, HOXB13 stimulated PCa cell invasion, and this was inhibited by the suppression of ZnT4. In addition, studies in a PC3 orthotopic mouse model of PCa metastasis showed that HOXB13 is a strong metastatic stimulator. Taken together, these results show that HOXB13 promotes PCa invasion and metastasis by decreasing intracellular zinc levels, thus stimulating NF-κB signals, and suggest that HOXB13 acts as a modulator of intracellular zinc levels that promotes the malignant characteristics of PCa.
Ohtani, M.,Hikima, J.i.,Kondo, H.,Hirono, I.,Jung, T.S.,Aoki, T. Pergamon Press ; Elsevier Science Ltd ; Pergamon 2011 Developmental and comparative immunology Vol.35 No.5
Cytosolic pattern recognition receptors such as retinoic acid-inducible gene I (RIG-I)-like receptors (RLRs) play an important role in sensing viral RNAs. The receptor encoded by melanoma differentiation-associated gene 5 (MDA5), an RLR, recognizes viral RNA in the cytoplasm and enhances antiviral response in host cells. The full-length MDA5 gene in Japanese flounder, Paralichthys olivaceus was cloned and found to have 11,251 nucleotides. MDA5 transcript abundance was significantly increased in whole kidney infected with viral hemorrhagic septicemia virus (VHSV) as well as whole kidney and peripheral blood leukocytes stimulated with poly I:C in vitro. Hirame natural embryo (HINAE) cells overexpressing MDA5 showed a lower cytopathic effect (CPE) against VHSV, hirame rhabdovirus (HIRRV) and infectious pancreatic necrosis virus (IPNV) infection. When infected with VHSV, MDA5-overexpressing HINAE cells had 24-75 fold lower virus titer than normal HINAE cells. These results suggest that Japanese flounder MDA5 is involved in the induction of antiviral response.