• Title/Summary/Keyword: P.Y. 180

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Derepression of a Methionine Biosynthetic Gene by Utilizing a Promoter Isolated from Corynebacterium glutamicum (Corynebacterium glutamicum에서 분리된 프로모터를 이용한 메치오닌 생합성 유전자의 조절해제)

  • Park Soo-Dong;Park Ik-Hyun;Choi Jong-Soo;Kim Il-Kwon;Kim Younhee;Lee Heung-Shick
    • Korean Journal of Microbiology
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    • v.41 no.4
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    • pp.300-305
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    • 2005
  • A transcriptionally active fragment $(P_{19})$ isolated by utilizing the promoter-probe shuttle vector pSK1Cat was analyzed. By subcloning analysis, the 180 bp region $(P_{180})$ responsible for the activity was determined. Transcriptional fusion of the C. glutamicum metX gene to $P_{180}\;(P_{180}-metX)$ resulted in a 24-fold increase in MetX activity in a complex medium, while a 13-fold increase was observed with the $P_{tac}$ promoter. Additionally, the expression conferred by $P_{180}$ was not affected by methionine added to the growth medium, suggesting that the $P_{180}$ clone is useful for the deregulated expression of biosynthetic genes in C. glutamicum during amino acid fermentation. Introduction of $P_{180}-metX$ into a lysine-producing C. glutamicum resulted in the production of methionine to 0.8 g/l.

Comparative Antitumor Activity of Water Extracts from Fruiting Body of Phellinus linteus, Phellinus baumii and Phellinus gilvus (Phellinus linteus, Phellinus baumii 및 Phellinus gilvus 자실체 추출물의 항암효과 비교)

  • 배재성;황미현;장광호;이만휘;이근우;조우식;최성국;윤효인;임종환
    • Toxicological Research
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    • v.20 no.1
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    • pp.37-42
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    • 2004
  • This study was undertaken to investigate comparative anti-tumor activity of water extracts of Phellinus gilvus (PGE), Phellinus linteus (PLE), and Phellinus baumii (PBE) in vitro. The anti-tumor activity in the present study was evaluated by sulforhodamine B (SRB) and microtetrazolium (MTT) assay in terms of cell survival level. The tumor cells (sarcoma 180 and P388) were treated with PGE, PLE, and PBE (7.5, 15, and 30 $\mu\textrm{g}$/ml) and Doxorubicin (DOX) (0.001~10 $\mu\textrm{M}$). The results showed that DOX, PGE, and PLE inhibited proliferation showing a dose-dependent manner against both tumor cells. However, PBE was inhibited by the only 30 $\mu\textrm{g}$/ml in both cells proliferation. In conclusion, all of PGE, PLE, and PBE used in this study have shown anti-tumor activity against both sarcoma 180 and P388. Among them, PLE was the most effective in anti-tumor activity against sarcoma 180 (p<0.05) and PGE was against P388 in SRB assay. PLE, however, was against P388 (p<0.05) in MTT assay.

Effects of Organic Iron Supplementation on Productivity and Egg Composition in Laying Hens (유기철의 첨가가 산란계의 생산성 및 난 성분에 미치는 영향)

  • 양철주;나상준;고석영;오종일;정대균;김해영;정일병;황보종;정완태
    • Korean Journal of Poultry Science
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    • v.31 no.2
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    • pp.101-108
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    • 2004
  • This study was conducted to evaluate the effect of iron reinforcing agent on the performance in laying hens for seven weeks. One hundred ninety eight 30-wk-old Brown Tetran layers were assigned to 9 treatments: control containing 45 mg Fe from iron sulfate per kg diet (FE-45), FE-90 (control multiplied two times), FE-180 (control multiplied four times), YM-45 containing 45mg Fe from yeast mutant, YM-90 (YM-45 multiplied two times), YM-180 (YM-45 multiplied four times), YF-45 containing 45mg Fe from ferritin containing yeast, YF-90 (YF-45 multiplied two times), YF-180 (YF-45 multiplied four times) in the experiment. Each treatment had four replications of 6 birds each. In the average egg production, the YF-180 was highest and the FE-45 (the control) was lowest; the YM-180, YF-90, and YF-180 were significantly (P<0.05) higher than the control. In the comparisons of egg weight and egg mass, the YF-180 was significantly higher (P<0.05) than the FE-90 or the control. In the FCR, the YM-90 was highest and the YF-45 was lowest. There was no significant difference between the control and YM-90 although the YF-45 was significantly (P<0.05) lower in FCR than the control. In the eggshell thickness, the YF-180 was the thickest and the FE-90 was the thinnest; the YF-45 or the YF-180 was significantly thicker (P<0.05) than the control. In the eggshell strength, the YF-45 was the strongest and the YM-45 was the weakest; the YM-90, YF-45, and YF-180 were significantly stronger (P<0.05) than the control. In the cholesterol level of egg yolk, the control (FE-45) was the highest and the YF-45 was the lowest; there was a significantly different (P<0.05) between these two treatments. In conclusion, in case of adding organic iron to feed for layers, it gives improvement on performance of layers and develop chemical composition of eggs.

The Study on Sarcoma-180 Anticancer Effects of Juglandis Semen Herbal-acupuncture(JsD) (호도약침(胡桃藥鍼)의 Sarcoma-180 항암효과(抗癌效果)에 관(關)한 실험적(實驗的) 연구(硏究))

  • Kang, Kye-Sung;Kwon, Ki-Rok;Choi, Sung-Mo;Lee, Seon-Goo
    • Journal of Pharmacopuncture
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    • v.5 no.1 s.8
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    • pp.43-52
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    • 2002
  • Objectives: This study was purposed to investigate the sarcoma-180 anticancer effects of Herbal acupuncture with Juglandis Semen(JsD) in mice. Methods: The Juglandis Semen Herbal-acupuncture was injected on Chung-wan(CV12) of mice with S-180 cancer cell line. Results: The results obtained were summarized as follows; 1. Median survival time of S-180 cancer cell treated with Juglandis Semen Herbal-Acupuncture was not significant.(p < 0.05) 2. Natural killer cell activity was insignificant for S-180 cell treated with Juglandis Semen Herbal-Acupuncture Herbal acupuncture. (P < 0.05) 3. Interleukin-2 productivity of S-180 cell treated with Juglandis Semen Herbal-Acupuncture was not significant.(P < 0.05) Conclusions: According to the results, we can conclude Herbal-acupuncture with Juglandis Semen caused no effects in S-180 cancer cell.

Effects on Growth Performance and Meat Quality Parameters by Restricted Diet during Finishing Days

  • Lee, S.D.;Song, Y.M.;Jin, S.K.;Ha, K.H.;Kim, I.S.;Kim, C.H.;Chowdappa, R.;Sonoda, T.;Song, R.D.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.9
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    • pp.1294-1298
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    • 2005
  • The objective of the present study was to investigate the effects on growth performance, meat quality parameters and fatty acids of meat by restricted diet amount on finishing Berkshires. A total of 180 pigs (Berkshire, initially 52 kg BW) at 100 days of age were allotted in arrangement in a completely randomized design (10 pigs per pen), blocked arrangement of treatments with 3 replications. The variables were market ages (180, 200 and 220 days) and in which was also included sex (gilts and barrow). All the pigs were restrictively fed so that day could be marked at 103 kg. Pork quality was evaluated from 4 pigs of each treatment. Average daily gain (ADG) and average daily feed intake (ADFI) were decreased (p<0.05) with age increase. The ratio of feed to gain was increased (p<0.05) at 200 and 220 days compared to that of 180 days. Moisture and crude protein of longissimus dorsi muscle (LM) at 180 days were increased (p<0.05) compared to 200 and 220 days. Crude fat was increased (p<0.05) by age and crude ash was lower (p<0.05) at 180 days than at 220 days. Red to green meat color scale (CIE a$^{*}$) increased (p<0.05) at 200 and 220 days more than at 180 days. Regarding fatty acid composition in meat, saturated fatty acids (SFA) was increased more (p<0.05) at 220 days than at 180 and 200 days. The results indicate that even with a restricted diet of low nutrient supplement, there was an improvement in Berkshire meat quality parameters.

Antitumor and immunomodulatory effects of a hot water extract of Phellinus baumii using Sarcoma-180 in the mouse (Pheflinus baumii 자실체 추출물의 Sarcoma-180 에 대한 항암 및 면역효과)

  • Ha, Hyo-Cheol;Kim, Hyun-Pyo;Sim, Ji Young;Chang, Yun-Hee;Kim, Hyun Su
    • Journal of Mushroom
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    • v.2 no.4
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    • pp.169-174
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    • 2004
  • A hot water extract(HWE-P4) was separated from the fruit bodies of PMO-P4, and its antitumor and immunomodulatory activities against sarcoma-180 in ICR mice were investigated. The internal transcribed spacer(ITS) regions from PMO-P4 were amplified using polymerase chain reaction(PCR) and sequenced. The results revealed that PMO-P4 was belong to the Phellinus baumii. When oral administration at the dose of 160mg/kg/day in the mice until the end of the experiment with 2 week's pre-feeding of the HWE-P4, the survival rate of the mice was 152% for 50days after the inoculation of sarcoma-180 and the suppression rate of the tumor growth was 35.3%(p<0.05) for 28 days after inoculation of sarcoma-180. The HWE-P4 increased 71.4% of the CD4/CD8 ratio and 5-fold of the expression of CD25(IL-2 receptor chain) compared with the control. From these results, the antitumor activity of HWE-P4 is exerted through its immunomodulating activity on the host's immune system.

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Relative Genetic Effects of Duroc and Taoyuan Breeds on the Economic Traits of Their Hybrids

  • Yen, N.T.;Tai, C.;Cheng, Y.S.;Huang, M.C.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.4
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    • pp.447-454
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    • 2001
  • For determining the relative genetic effects of Duroc (D) and Taoyuan (T) breeds on the economic traits of their hybrids, 72 litters of pigs, from four mating types, namely TT (T♂$\times$T♀), DD (D♂$\times$D♀) and D-T hybrids (TD, T♂$\times$D♀ and DT, D♂$\times$T♀) were used in this study. The various crossbreeding parameters were estimated by comparisons among mating types using linear contrasts of least-square analysis. The results of reproductive traits analysis showed that T breed had contributed superior genetic effects on the total number of piglets at birth (TBN) (p<0.10) and number of live piglets at 21 days (LP21) (p<0.05) to the D-T hybrids. Estimates of maternal genetic effects showed that the T females were superior in TBN (p<0.05), but inferior in average birth weight (ABW) and average litter birth weight (LBW) (p<0.01) to the D females. Direct heterosis effects were significant for LBW, LP21 and LWT21 (p<0.01). Least-squares analysis of other economic traits showed that T breed had relative negative effects on all growth traits, withers height (WH), body type index (BTI), average backfat thickness (ABF), carcass length (LENG), loin eye area (longissimus) (LEARA), and lean percentage (LEAN) of D-T hybrids (p<0.05). Estimates of direct genetic effects showed that the D breed was superior to the T breed in all growth and carcass traits except the average backfat (BF). Estimates of maternal genetic effects showed that average body weight at 180 days (WT180) of progenies from T sows were lighter than from D sows. Progenies from D females had larger and leaner carcass than those from T females. Direct heterosis effects were significant for average daily weight gains from 150 to 180 days ($ADG_{150-180}$) (p<0.05) and for average body weights at 150 (WT150), and 180 days (WT180), average daily weight gains from birth to 150 and 180 days ($ADG_{150}$ and $ADG_{180}$, respectively), WH, body length (BL), ABF, BTI, and LENG (p<0.01). The results showed that D-T hybrids tended to have superior TBN and LP21 than D breed, and to be superior in all growth and most conformation and carcass traits to the T breed.

The Study on Acute and Subacute Toxicity and Sarcoma-180 Anti-cancer Effects of Armeniacae amarum semen Herbal-Acupuncture(Haeng-In) (행인약침(杏仁藥鍼)의 급성(急性) 아급성(亞急性) 독성실험(毒性實驗) 및 Sarcoma-180 항암효과(抗癌效果)에 관(關)한 실험적(實驗的) 연구(硏究))

  • Kim, Ok;Kwon, Ki-Rok
    • Journal of Pharmacopuncture
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    • v.5 no.1 s.8
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    • pp.61-79
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    • 2002
  • Objective: The purpose of this study was to investigate acute and subacute toxicity and sarcoma-180 anti-cancer effects of Herbal acupuncture with Anneniacae amarum semen (Haeng-in) in mice and rats. Method: Balble mice were injected intraperitoneany with Haeng-In extract for $LD_{50}$ and acute toxicity test. Sprague-Dawley rats were injected intraperitoneally with Haeng-In extract for subacute toxicity test. TheAnneniacae amarum semen Herbal-Acupuncture was injected on Chung-wan (CV12) of mice with Sarcoma-180 cancer cell line. Results: 1. $LD_{50}$ was uncountable as none of the subjects expired from the treatment groups during the test. 2. The clinical signs and the body weight of mice treated with 0.1cc and 0.2cc Haeng-In extract were not affected during the acute toxicity test. 3. In acute toxicity test of serum biochemical values of mice, total protein and albumin were decreased in treatment group Ⅰ. Glucose was increased, and total cholesterol was decreased in treatment groups. GPT was increased in treatment group Ⅰ. 4. In subacute toxicity test, toxic symptoms were not detected in the treatment groups. 5. In subacute toxicity test, the body weight was increased in treatment groups on 14th and 21st day. 6. In subacute toxicity test. liver weight was increased in treatment group Ⅱ, and spleen weight was increased in treatment group Ⅱ. Lung weight was increased in an the treatment groups.(p<0.05) 7. In subacute toxicity test, severe tissue injury was found in lung and liver, especially treatment group Ⅰshowed more significant lung damage compared to treatment group l. 8. In subacute toxicity test, WBC. MCH and MCHC were increased in an the treatment groups, RBC, HGB and HCT were decreased in treatment group H(p<0.05). 9. In subacute toxicity test of serum biochemical values of rats, triglyceride was decreased in all the treatment groups. ALP was decreased in treatment group Ⅰ. and creatinine was decreased in treatment group Ⅱ. BUN/CR was increased in treatment group Ⅱ(p<0.05). 10. Median survival time of Sarcoma-180 cancer cell treated with Haeng-In was increased in all the treatment groups by twenty percent, compared to the control group(p<0.05). 11. Natural killer cell activity about the Sarcoma-180 cell was decreased at the ratio of 100:1 but was increased at the ratio of 10:1. In treatment group Ⅱ, increase was found at the ratio of 100:1 and 50:1 (p<0.05). 12. Interleukin-2 productivity of the Sarcoma-180 cell was decreased in treatment group I, but was increased in treatment group Ⅱ(p<0.05). Conclusion: According to the results, we can conclude Herbal-acupuncture with Anneniacae amarum semen caused toxicity, and had effects in Sarcoma-180 cancer cell.