RF 마그네트론 스퍼터링법에 의한 a-축 배향 $YBa_2Cu_3O_{7-\delta}$박막의 제조

이재준,김영환,신진,이경희,최상삼,한택상,Lee, J.J.,Kim, Y.H.,Shin, J.,Lee, K.H.,Choi, S.S.,Hahn, T.S. 한국재료학회 1994 한국재료학회지 Vol.4 No.4

a-측으로 배향된 $YBa_2Cu_3O_{7-\delta}$ 고온 초전도 박막을 $LaAIO_{3}$(100)단결정 기판에 이중 타게트 off-axis rf마그네트론 스퍼터링법으로 증착하였다. 박막은 기판온도(Ts)$590^{\circ}C$와 $680^{\circ}C$사이에서 단일공정으로 증착하는 one-step방법과, $590^{\circ}C$의 저온에서 a-축으로 배향된 YBCO박막(두께-30nm)을 면저 만들어 틀로 작용시킨 후 그 틀위에 나머지 부분을 기판온도를 승온하면서 증착하는 방법인 two-step방법 등 두 가지 방법을 사용하여 증착시켰다. one-step방법에서는 $T_s$가 증가함에 따라 감소하였으며, ($00 \ell$)피크는 증가하였다. Two-step방법으로 증착한 박막은 증착속도가 감소함에 따라 (h00)피크가 우세하게 나타났다. 박막의 미세구조는 a-축, c- 축 배향성이 혼재하여 핀홀과 같은 결함들이 생성되었다. 모든 경우 $T_s$가 감소함에 따라 a-축 배향성은 우세하였으나 전기적 특성은 저하되었고, 긴 전이온도 폭을 가졌다. A-axis oriened YBCO thin flims were grown on $LaAIO_{3}$ single crystal substrate by off-axis rf magnetron sputtering method. We used two kinds of process to get a-axis oriented fi1ms;one-step process and two-step process. In one-step process, films are grown in single step in which substrate temperature( $T_s$) is in the range of $590^{\circ}C$ to $680^{\circ}C$. On the other hand, in two step process a-axis oriented thin film templates i f about 30nm thickness is deposited at low temperature first, and subsequently films are grown at elevated temperature to the final thickness of about 100nm. In the case of one step process($T_s$ ~)$600^{\circ}C$), prefered a-axis orientation is dominant and Cu-rich phases segregate at the surface. Segregations decrease and ($00 \ell$) peaks increase upon increasing $T_s$. The films prepared by two step method appeared to have strong(h00) peaks as the deposition rate increased. Microstructure shows pin holes resulted from mixed phases of a-axis and c-axis oriented films. In both cases of one step and two step process, as TS decreases, prepared films show stronger a-axis orientation. However electrical properties of the films are depressed with lower $T_c$ and wider $\Delta T$ as $T_s$ decreases.

육계사료와 식용유 정제 폐백토(Spent Bleaching Clay) 급여가 육계의 생산성에 미치는 영향

전해열,손장호,이길왕,김선구,강한석,신택순,조병욱,Jeon H. Y.,Son J. H.,Lee K. W.,Kim S. K.,Kang H. S.,Shin T. S.,Cho B. W. 한국가금학회 2005 韓國家禽學會誌 Vol.32 No.4

본 연구는 Spent Bleaching Clay(SBC)를 육계사료의 에너지 공급원으로 활용 가능성을 구명하기 위하여 실시하였다. 부화 직후의 120수의 병아리(한협 3호)를4처리 3반복, 반복당 10수(암수 각각 5수씩)를 Control(T1) 사료에 SBC를 $2.0\%(T2),\;4.0\%(T3)$ 및 $6.0\%(T4)$ 첨가한 4처리로 배치하였다. 시험사료 급여전 1주일은 시판사료를 급여하였다. 4주간의 시험 기간동안 증체중 및 사료 섭취량은 T3 및 T4 처리구에서 증가하는 경향이 인정되었다. 사료효율은 T3구에서 개선되는 경향이 인정되었다. 가슴살 및 다리살에서 치방산 조성을 사료의 처리에 따른 효과는 인정되지 않았다. 육계 초기 및 후기 사료 급여시 모두, 사료중의 건물, 조단백질 및 조지방 이용율은 T4 처리구가 다른 처리구에 비해서 유의하게 감소하였으며(p<0.05), 대사에너지가도 T4 처리구가 다른 3구에 비해서 유의하게 저하하였다(p<0.05). 사료중의 조회분의 이용율은 사료의 처리에 따른 차이는 인정되지 않았다. 결론적으로 본 시험의 결과 육계사료에 $2\~4\%$의 SBC첨가는 육계의 성장 및 사료효율 개선의 가능성이 있음이 사료된다. This study was conducted to evaluate the feasibility of spent bleaching clay(SBC) as an energy resource for meat type chicks. A total of one hundred twenty 1-d old broiler chicks(Han-hyop, No. 3) were divided into four groups and each group was assigned to one of the following diets: 0(T1), 2.0(T2), 4.0(T3) and $6.0\%$ SBC(T4). Each treatment had 3 replications of 10 birds. Before feeding experimental diets, they were fed a commercial diet for a week Body weight gain and feed intake tended to increase in T3 and T4, respectively. Feed efficiency(feed intake/ gain) tended to decrease in T3 compared to other groups. Fatty acid composition of breast and thigh meat was not significantly affected by feeding SBC. Utilization of dry matter, energy, crude protein and crude fat was lower in T4 than in the other groups during both starter and finisher periods(p<0.05). Crude ash utilization was not significantly affected by feeding dietary SBC. These results indicate that broiler diets may be supplemented with 2 to $4\%$ SBC without adverse effect on growth.

Common promoter polymorphism in monocyte differentiation antigen CD14 is associated with serum triglyceride levels and body mass index in non-diabetic individuals

Shin, H. D.,Park, K. S.,Park, B. L.,Cheong, H. S.,Cho, Y. M.,Lee, H. K.,Lee, J.-Y.,Lee, J.-K.,Kim, H. T.,Han, B. G.,Kim, J. W.,Koh, I.,Kim, Y. J.,Oh, B.,Kimm, K.,Park, C. Blackwell Science Ltd 2006 Diabetic medicine Vol.23 No.1

<P>Abstract</P><P>Aims </P><P>Growing evidence supports the hypothesis that chronic low-grade inflammation related to innate immunity may play an important role in the pathophysiology of Type 2 diabetes mellitus (T2DM). The monocyte differentiation antigen CD14 gene (<I>CD14</I>) acts as the receptor for lipopolysaccharide (LPS) and augments monocyte/macrophage inflammatory responses.</P><P>Methods </P><P>We have sequenced the gene, including all exons, exon/intron boundaries, and the −1.5 kb of the 5′ flanking region. Two common loci (minor allele frequency > 0.05) were genotyped in 775 T2DM patients and 316 control subjects recruited in the Korean T2DM Study.</P><P>Results </P><P>Eight polymorphisms, including four non-synonymous forms, were identified in <I>CD14</I>. No polymorphisms were found in association with T2DM. However, one common promoter SNP (<I>−260T>C</I>) was significantly associated with both the serum triglyceride level (TG) and body mass index (BMI) in non-diabetic control subjects. Individuals who carried the minor allele (C) had higher TG levels (1.65 ± 0.81 vs. 1.46 ± 0.80 mmol/l; <I>P</I> = 0.0007) and BMI (23.96 ± 3.00 vs. 23.28 ± 3.22 kg/m<SUP>2</SUP>; <I>P</I> = 0.04) as compared with subjects carrying T/T genotypes.</P><P>Conclusion </P><P>Our data suggest that lipid metabolism and obesity, important pathophysiological elements of T2DM and the metabolic syndrome, are regulated by complex mechanisms that include the CD14 gene polymorphism-mediated genetic propensity to non-specific inflammatory responses.</P>

광전도체의 CdS 단결정 성장과 물리적 특성

정태수,유평열,신영진,신현길,김택성,정철훈,이훈,신영신,홍광준,유기수 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.16 No.-

승화방법으로 광전도체의 CdS 단결정을 성장하였고 외삽법으로 구한 a_o와 c_o 의 격자상수 값은 각각 4.1318Å과 6.7122Å임을 알았다. Hall 측정값으로 부터 상온에서의 CdS 단결정의 운반자 농도와 이동도는 각각∼10^23m^-3과 2.93×10 exp (-2)㎡/V sec 이였으며 온도에 따른 이동도 변화는 33 K에서 150 K까지는 T^1/2 에 따라 증가하는 경향이 있고 180 K 에서 상온까지는 T^-2에 따라 감소한 경향이 나타났다. 광전류 측정으로 부터 나타난 단파장대의 봉우리는 진성전이에 기인하는 봉우리였으며 이 봉우리의 에너지값은 CdS 광전도체에 에너지 밴드 갭과 동일한 값을 나타냄을 알았다. A CdS single crystal was grown by using sublimation method. Lattice constants, a_o and c_o , obtained by using extrapolation were 4.1318 Å and 6.7122 Å, respectively. The carrier density was∼10^23m^-3 and the mobility was 2.93×10 exp (-2)㎡/V-sec from measured Hall data at room temperature. The mobility has a increasing tendency in proportion to T^1/2 from 33 K to 150 K and a decreasing tendency in proportion to T^-2 from 180 K to room temperature. The short wavelength band peak measured from photocurrent was due to intrinsic transition, and the energy value of this peak was equal to the energy band gap of CdS photoconductor.

15-lipoxygenase metabolites play an important role in the development of a T-helper type 1 allergic inflammation induced by double-stranded RNA

Jeon, S. G.,Moon, H.-G.,Kim, Y.-S.,Choi, J.-P.,Shin, T.-S.,Hong, S.-W.,Tae, Y.-M.,Kim, S.-H.,Zhu, Z.,Gho, Y. S.,Kim, Y.-K. Blackwell Publishing Ltd 2009 Clinical and experimental allergy Vol.39 No.6

<P>Summary</P><P>Background</P><P>We recently demonstrated that the T-helper type 1 (Th1) immune response plays an important role in the development of non-eosinophilic inflammation induced by airway exposure of an allergen plus double-stranded RNA (dsRNA). However, the role of lipoxygenase (LO) metabolites in the development of Th1 inflammation is poorly understood.</P><P>Objective</P><P>To evaluate the role of LO metabolites in the development of Th1 inflammation induced by sensitization with an allergen plus dsRNA.</P><P>Methods</P><P>A Th2-allergic inflammation mouse model was created by an intraperitoneal injection of lipopolysaccharide-depleted ovalbumin (OVA, 75 μg) and alum (2 mg) twice, and the Th1 model was created by intranasal application of OVA (75 μg) and synthetic dsRNA [10 μg of poly(I : C)] four times, followed by an intranasal challenge with 50 μg of OVA four times. The role of LO metabolites was evaluated using two approaches: a transgenic approach using 5-LO<SUP>−/−</SUP> and 15-LO<SUP>−/−</SUP> mice, and a pharmacological approach using inhibitors of cysteinyl leucotriene receptor-1 (cysLTR1), LTB4 receptor (BLT1), and 15-LO.</P><P>Results</P><P>We found that the Th1-allergic inflammation induced by OVA+dsRNA sensitization was similar between 5-LO<SUP>−/−</SUP> and wild-type (WT) control mice, although Th2 inflammation induced by sensitization with OVA+alum was reduced in the former group. In addition, dsRNA-induced Th1 allergic inflammation, which is associated with down-regulation of 15-hydroxyeicosateraenoic acids production, was not affected by treatment with cysLTR1 or BLT1 inhibitors, whereas it was significantly lower in 12/15-LO<SUP>−/−</SUP> mice compared with WT control mice. Moreover, dsRNA-induced allergic inflammation and the recruitment of T cells following an allergen challenge were significantly inhibited by treatment with a specific 15-LO inhibitor (PD146176).</P><P>Conclusion</P><P>15-LO metabolites appear to be important mediators in the development of Th1-allergic inflammation induced by sensitization with an allergen plus dsRNA. Our findings suggest that the 15-LO pathway is a novel therapeutic target for the treatment of virus-associated asthma characterized by Th1 inflammation.</P>

승화법에 의한 CdS 단결성 성장

정태수,김현숙,유평렬,신영진,신현길,김택성,정철훈,이훈,신영신,강신국,정경수,홍광준 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.16 No.-

수직 2단 전기로를 제작하고 결정성장관에 꼬리관을 연결하여 seed 결정 없이 승화 방법으로 CdS 결정을 성장하였다. 이때 시료부분과 성장부분의 온도차 ΔT가 이론적인 값 14.7℃와 비교해서 실험적으로 얻은 값이 15℃로 아주 일치하는 값을 나타내었다. 이때 꼬리관의 온도를 110℃로 시간당 0.38mm 정도로 빨리 결정성장관을 끌어 올려 결정을 성장하였다. 분말법의 X-선 회절무늬와 Laue 배면 반사법의 Laue 무늬로 부터 성장된 결정이 육방정이고 결정성장관의 길이 방향으로 c축을 갖는 단결정임을 확인하였다. 또한 CdS 단결정은 상온에서 전자 이동도와 운반자 밀도는 각각 316㎠/V·sec와 2.90× 10 exp (16)cm^-3 정도이였다. We has made 2-zone vertical electric furnace and has been grown CdS single crystal by sublimation method in crystal growth tube with tail tube without seed crystal for growth. While it has been growing, temperature difference ΔT of source and growth part has nearly agreed with theoritical value 14.7℃ and experimental value 15℃. Then, crystal of best quality has been grown, when temperature of tail tube has been 110℃, in spite of quickly pulling up crystal growth tube a degree 0.38mm per hour. The grown crystal have had hexagonal structure and single crystal with c-axis to length of crystal growth tube from X-ray diffraction pattern of powder method and Laue pattern of back reflection Laue method. Also, the mobility and carrier density from Hall effect measurement have been 316㎠/V·sec and 2.90× 10 exp (16)cm^-3 at the room temperature, respectively.

임신 및 각종 갑상선질환에서 갑상선 기능 판정에 관한 연구 : 혈청유리 T4의 진단적 의의에 관한 고찰 The diagnostic value of free thyroxine by RIA

이종철,유명희,윤휘중,신영태,정순일,조보연,이문호,이명철 대한핵의학회 1981 핵의학 분자영상 Vol.15 No.1

To evaluate the diagnostic accuracy of the measurement of free thyroxine(FT4) by radioimmunoassay, we measured free T4 and T4, T3, T3RU, TSH and TBG serum levels by radioimmunoassay in 18 healthy persons and 52 patients with various thyroid diseases and 11 normal pregnant women. The results are as follows. 1) In 19 cases of overt hyperthyroidism, T3, free T4 and FTI, T4/TBG ratio reflect hyperfunction in all cases. T4 is increased in 94%(18/19) and TBG and TSH are decreased in 79%(15/19). 2) In 8 patients with overt hypothyroidism, TSH is increased in all cases and free T4 and FTI is decreased in all cases. T4 is decreased in 87.5%(7/8), T3 is decreased in 75%(6/8) and T4/TBG ratio is decreased in 62.5%(5/8). 3) In 5 patients who are clinically in euthyroid state after treatment of hyperthyroidism, T4 free T4, FTI and TSH are in the normal range in all cases and T3 is normal in 60%(3/5) and slightly increased in 40%(2/5). 4) In 10 patients who showed clinically borderline hypothyroidism after treatment of hyperthyroidism, TSH is increased in all cases and free T4 and FTI are decreased in all cases, but T4 and T3, T4/TBG ratio are in the normal limit in all cases. So after treatment of hyperthyroidism, TSH, free T4 or FTI are recommended as optimal function test. 5) In normal pregnancy, free T4, FTI and T4/TBG ratio reflect normal function, but the other parameters unreliable due to the influence of increased TBG. Also TBG and TSH level in pregnancy is increased significantly compared with normal healthy control group. 6) The coefficients of correlation between T4 and FTI were 0.862(p〈0.001) and 0.685(p〈0.001) between free T4 and T4/TBG ratio. In most patients, diagnostic value of free T4 was comparable and even superior to FTI, so free T4 measurement can be used routinely with thyrotropin assay in the diagnosis of hypothyrodism or with T3 for the diagnosis of hyperthyroidism.

아연 공급원이 반추위내 발효특성과 유생산성 및 이용율에 미치는 영향 - 1. 아연 공급원이 젖소의 반추위내 발효특성 및 십이지장액에 미치는 영향 -

정완태(W . T . Chung),신형태(H . T . Shin),이상철(S . C . Lee) 한국영양사료학회 1997 韓國營養飼料學會誌 Vol.21 No.1

In vitro synergistic anticancer activity of the combination of T-type calcium channel blocker and chemotherapeutic agent in A549 cells

Byun, J.S.,Sohn, J.M.,Leem, D.G.,Park, B.,Nam, J.H.,Shin, D.H.,Shin, J.S.,Kim, H.J.,Lee, K.T.,Lee, J.Y. Pergamon Press 2016 Bioorganic & medicinal chemistry letters Vol.26 No.3

As a result of our continuous research, new 3,4-dihydroquinazoline derivative containing ureido group, KCP10043F was synthesized and evaluated for T-type Ca<SUP>2+</SUP> channel (Ca<SUB>v</SUB>3.1) blockade, cytotoxicity, and cell cycle arrest against human non-small cell lung (A549) cells. KCP10043F showed both weaker T-type Ca<SUP>2+</SUP> channel blocking activity and less cytotoxicity against A549 cells than parent compound KYS05090S [4-(benzylcarbamoylmethyl)-3-(4-biphenylyl)-2-(N,N',N'-trimethyl-1,5-pentanediamino)-3,4-dihydroquinazoline 2 hydrochloride], but it exhibited more potent G<SUB>1</SUB>-phase arrest than KYS05090S in A549 cells. This was found to be accompanied by the downregulations of cyclin-dependent kinase (CDK) 2, CDK4, CDK6, cyclin D2, cyclin D3, and cyclin E at the protein levels. However, p27<SUP>KIP1</SUP> as a CDK inhibitor was gradually upregulated at the protein levels and increased recruitment to CDK2, CDK4 and CDK6 after KCP10043F treatment. Based on the strong G<SUB>1</SUB>-phase cell cycle arrest of KCP10043F in A549 cells, the combination of KCP10043F with etoposide (or cisplatin) resulted in a synergistic cell death (combination index=0.2-0.8) via the induction of apoptosis compared with either agent alone. Taken together with these overall results and the favorable in vitro ADME (absorption, distribution, metabolism, and excretion) profiles of KCP10043F, therefore, it could be used as a potential agent for the combination therapy on human lung cancer.

아연 공급원이 반추위내 발효특성과 유생산성 및 이용율에 미치는 영향 - 2. 아연 공급원이 젖소의 반추위내 박테리아수 변화에 미치는 영향 -

정완태(W . T . Chung),신형태(H . T . Shin),이상철(S . C . Lee) 한국영양사료학회 1997 韓國營養飼料學會誌 Vol.21 No.2