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Lee, D-H,Kwon, J-S,Lee, H-J,Lee, Y-N,Hur, W,Hong, Y-H,Lee, J-B,Park, S-Y,Choi, I-S,Song, C-S Poultry Science Association, etc 2011 Poultry science Vol.90 No.5
<P>The frequent economic losses incurred with H9N2 low pathogenic avian influenza viruses (LPAI) infection have raised serious concerns for the poultry industry. A 1-dose regimen with inactivated H9N2 LPAI vaccine could not prevent vaccinated poultry from becoming infected and from shedding wild viruses. A study was conducted to determine whether a 2-dose regimen of inactivated H9N2 LPAI vaccine could enhance the immunologic response in chickens. Such gel-primed and mineral oil-boosted regimen has produced encouraging results associated with improved immune responses to an H9N2 LPAI. This strategy could be cost effective and helpful for preventing avian influenza virus in the poultry industry.</P>
중증 간경화증환자에 (肝硬化症患者) 동반된 난치성 (難治性) 복수의 (腹水) 초여과에 (超濾果) 의한 치료효과
기춘석(Chun Suk Ki),박경남(K N Park),이호채(H C Lee),황흥곤(H C Hwang),정병천(B C Chung),허동헌(D H Hur),박한철(H C Park) 대한소화기학회 1983 대한소화기학회지 Vol.15 No.1
N/A There had been a considerable trouble in the management of refractory acites combined with liver cirrhosis. Such refractory ascites in advanced liver cirrhosis does not respond to conventicnal therapy such as bed rest, salt restriction, massive diuretics and albumin infnsion. And there are also serious corrplications including hepatic encephalopathy, functicnal renal failure and hyponatremia with massive administration of diuretics. So peritoneovenous shunt(Leveen shunt) had been developed in order to promote effective circulatory volume with increased renal function. But relatively large and serious complications such as DIC, fever, infection, pulmonary edema and pulmonary embolism had limited its widespread use in the magement of refractory ascites. So we have experienced intraperitoneal reinfusion of ultrafiltered ascites for 20 patients with intractable ascites combined with liver cirrhosis. We had performed this procedure via ultrafilter which was usually used in hemodialysis and pump. And the following results werc acquired. 1. About 6200 cc of acites was ultrafiltered for average 4. 5 hrs. and loss of body weight was 6.7kg which was more than the amount of filtered ascites. 2, Increasing tendency in serum albumin concentration after ultrafiltration with peak concentration about 0. 5 gm/dl gain at 3rd after this procedure. There were significant increase in the amount of daily urine output but statisitically nonsignificant increase in creatinine clearance. 4, The complications of this procedure were light headache, hearing disturbance, dizziness and there was no more serious complication such as DIC, variceal rupture, pulmonary edema. There was no recurrence of reaccumulation of ascites within 3 months with one time procedure in a certain case. The repeated with average of 4-6 weeks interval had controlled such refractory ascites. In summary, above results supported that intraperitoneal reinfusion of ultrafiltered ascites have beneficial effect in the control of refractory ascites combined with far advanced liver cirrhosis. The advantages of this procedure are the followings. 1.Low cost. 2. Time saving. 3. Ambulatory control. 4 Less complication. 5. Corresponding effect to intravenous albumin infusion (4-5 bottles)
Hur, Y.G.,Kim, M.S.,Lee, D.W.,Kim, S.,Eom, H.J.,Jeong, G.,No, M.H.,Nho, N.S.,Lee, K.Y. Butterworths [etc.] ; Elsevier Science Ltd 2014 Fuel Vol.137 No.-
In this study, we tried hydrocracking of vacuum residue into lighter liquid oils using dispersed colloidal catalysts composed of nanosheet-structured WS<SUB>2</SUB> materials. The vacuum residue of API gravity=2.3<SUP>o</SUP> was used as a reactant and hydrocracking reactions were performed in an autoclave batch reactor under 400<SUP>o</SUP>C and the initial H<SUB>2</SUB> pressure of 70bar. Both single and multi-layer WS<SUB>2</SUB> nanosheet catalysts were tested and their activities were compared with those of bulk WS<SUB>2</SUB> and MoS<SUB>2</SUB> catalysts. The single-layer WS<SUB>2</SUB>, which was the highest in specific surface area (97.6m<SUP>2</SUP>/g) due to its smallest particle size, showed the best performances in commercial fuel fraction yield (45.4wt.%), C<SUB>5</SUB>-asphaltene conversion (75.3%), API gravity of liquid product (13.8<SUP>o</SUP>), and metal removal activity. To characterize the physicochemical properties of catalyst, various characterization techniques were applied, including transmission electron microscope (TEM), X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET) analysis. In addition, to assess the qualities of hydrocracking products, we carried out API gravity measurement, inductively coupled plasma-mass spectrometry (ICP-MS), and simulated distillation (SIMDIS) analysis.
Hur, W.,Park, M.,Lee, J.Y.,Kim, M.H.,Lee, S.H.,Park, C.G.,Kim, S.N.,Min, H.S.,Min, H.J.,Chai, J.H.,Lee, S.J.,Kim, S.,Choi, T.H.,Choy, Y.B. Elsevier Science Publishers 2016 Journal of controlled release Vol.222 No.-
<P>We prepared a bone plate enabled with the local, sustained release of alendronate, which is a drug known to inhibit osteoclast-mediated bone resorption and also expedite the bone-remodeling activity of osteoblasts. For this, we coated a bone plate already in clinical use (PLT-1031, Inion, Finland) with a blend of alendronate and a biocompatible polymer, azidobenzoic acid-modified chitosan (i.e., Az-CH) photo-crosslinked by UV irradiation. As we performed the in vitro drug release study, the drug was released from the coating at an average rate of 4.03 mu g/day for 63 days in a sustained manner. To examine the effect on bone regeneration, the plate was fixed on an 8 mm cranial critical size defect in living rats and the newly formed bone volume was quantitatively evaluated by micro-computed tomography (micro-CT) at scheduled times over 8 weeks. At week 8, the group implanted with the plate enabled with sustained delivery of alendronate showed a significantly higher volume of newly formed bone (52.78 +/- 6.84%) than the groups implanted with the plates without drug (23.6 +/- 3.81%) (p < 0.05). The plate enabled with alendronate delivery also exhibited good biocompatibility on H&E staining, which was comparable to the Inion plate already in clinical use. Therefore, we suggest that a bone plate enabled with local, sustained delivery of alendronate can be a promising system with the combined functionality of bone fixation and its expedited repair. (C) 2015 Elsevier B.V. All rights reserved.</P>
Cotyledon and Leaf Development Associated with Seedling Viger of Six Forage Legumes
Hur, S. N.,Park, H. S.,Nelson, C. J. 全北大學校 附設 畜産開發硏究所 1987 畜産開發硏究報告 Vol.1 No.-
子葉과 葉의 展開가 幼植物 生長과 어떠한 관계가 있는가를 조사하기 위하여 6가지 荳科 牧草의 子葉과 葉의 展開過程을 비교 검토하였다. 荳科 牧草의 子葉은 出現후 1주일 동안은 급격히 신장되었으며 그 이후는 서서히 확장되다가 탈락되었다. 종자는 크기가 클수록 子葉 면적도 컸으며 子葉伸張과 幼植物 生育과는 밀접한 관계가 있었다. 그리고 빠른 本葉 出現과 初期 신속한 葉展開는 초기 幼植物 生長에 있어서 결정적인 요인이 되었다.
Kim, J.H.,Hur, J.H.,Lee, S.M.,Im, K.S.,Kim, N.H.,Sur, J.H. Ballière Tindall ; W.B. Saunders 2012 The veterinary journal Vol.193 No.1
Regulatory T cells (Treg) cells play a crucial role in tumor progression by suppressing anti-tumor immunity, but are not well-documented in veterinary oncology. To identify the characteristics of Treg cells in tumor microenvironments, the numbers of Treg cells were analyzed and compared with histological prognostic factors and molecular biomarkers in canine mammary carcinoma (MC) tissues (n=37). Abundant Treg cells were associated with high histological grade and lymphatic invasion. The numbers of Treg cells infiltrating intratumoral areas markedly increased in tumors with poor prognostic factors, such as high histological grade, lymphatic invasion, and necrosis. These findings suggest that Treg cells play a role in canine MC progression. Furthermore, Treg cell numbers in intratumoral compartments may provide a potential prognostic factor when assessing canine MCs, which may in turn lead to the development of new immunologic therapeutics.
Lee, K.H.,Lee, B.,Hwang, S.J.,Lee, J.U.,Cheong, H.,Kwon, O.S.,Shin, K.,Hur, N.H. Pergamon Press ; Elsevier Science Ltd 2014 Carbon Vol.69 No.-
A novel one-pot process that can produce freestanding reduced graphene oxide (RGO) sheets in large scale through a mechanochemical method is presented, which is based on a 1:1 adduct of hydrazine and carbon dioxide (H<SUB>3</SUB>N<SUP>+</SUP>NHCO<SUB>2</SUB><SUP>-</SUP>, solid hydrazine). We were able to synthesize RGO sheets by grinding solid hydrazine with graphene oxide (GO), followed by storing the mixed powder at 50<SUP>o</SUP>C for 10min. No solvents, nor large vessels, nor post-annealing at high temperatures are required. The resulting RGO sample was characterized by elemental analysis, X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, Brunauer-Emmett-Teller measurement, thermo gravimetric analysis, Fourier transform infrared spectroscopy, solid state nuclear magnetic resonance spectroscopy, and conductivity measurement. It exhibits excellent conductivity and possesses a high specific surface area. This reduction method was successfully applied for the fabrication of inkjet-printed RGO devices on a flexible substrate.
Bae, S. U.,Han, Y. D.,Cho, M. S.,Hur, H.,Min, B. S.,Baik, S. H.,Lee, K. Y.,Kim, N. K. Springer Science + Business Media 2016 Annals of surgical oncology Vol.23 No.5
<P>The treatment strategy and benefit of extended lymph node dissection among patients with preoperatively diagnosed paraaortic lymph node metastasis (PALNM) in colon cancer remains highly controversial. In the current study, we analyzed the oncologic outcomes of patients who underwent extraregional lymph node dissection for colon cancer with isolated PALNM. From March 2000 to December 2009, the study group included 1082 patients who underwent curative surgery for colonic adenocarcinoma with pathological lymph node metastasis. Of 1082 patients who underwent curative surgery for colonic carcinoma, 953 (88.1 %) patients underwent regional lymphadenectomy, and 129 (11.9 %) patients underwent paraaortic lymph node dissection. Pathologic examination revealed N1 stage disease in 738 (68.2 %), N2 in 295 (27.3 %), and PALNM in 49 (4.5 %). Five-year overall survival (OS) and disease-free survival (DFS) rate were significantly better in the regional LNM group than in the PALNM group (OS 75.1 vs. 33.9 %, p < 0.001; DFS 66.2 vs. 26.5 %, p < 0.001). Five-year OS and DFS were not significantly different between the PALNM and resectable liver metastasis patients who underwent curative resection (OS 33.9 vs. 38.7 %, p = 0.080; DFS 26.5 vs. 27.6 %, p = 0.604). PALNM in colon cancer is associated with poorer survival than regional lymph node metastasis and showed comparable survival rates with metastasectomy for liver metastasis. Further studies evaluating the net benefit of upfront chemotherapy compared with initial resection for patients with potentially resectable PALNM are needed.</P>