• Title/Summary/Keyword: $BL_{13}$

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Functional Analysis of Spectinomycin Biosynthetic Genes from Streptomyces spectabilis ATCC 27741

  • Jo, You-Young;Kim, Sun-Hee;Yang, Young-Yell;Kang, Choong-Min;Sohng, Jae-Kyung;Suh, Joo-Won
    • Journal of Microbiology and Biotechnology
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    • v.13 no.6
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    • pp.906-911
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    • 2003
  • The function of genes related to spectinomycin biosynthesis (spcD, speA, speB, spcS2) from Streptomyces spectabilis ATCC 27741, a spectinomycin producer, was analyzed. Each gene was subcloned from a spectinomycin biosynthetic gene cluster and overexpressed in E. coli BL21 (DE3) using pET vector. After incubating each purified protein with its possible substrates, the final products were analyzed using high-performance liquid chromatography (HPLC). From these results, spcD, speA, and speB have been identified to be dTDP-glucose synthase, myo-inositol monophosphatase, and myo-inositol dehydrogenase, respectively. In addition, the results suggest that the spcS2 gene product functions downstream of the speB gene product in the biosynthetic pathway of spectinomycin. Taken together, the present study elucidates the early steps of the biosynthetic pathway for 6-deoxyhexose (6-DOH) part (actinospectose) and aminocyclitol part (actinamine) of spectinomycin.

The Trends in Foreign Clinical Trials for Pediatric Asthma in Complementary and Alternative Medicine (소아 천식 치료의 국외 보완대체의학 임상 연구 동향)

  • Bang, Mi Ran;Kim, Jang Hyun;Min, Sang Yeon
    • The Journal of Pediatrics of Korean Medicine
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    • v.29 no.3
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    • pp.1-11
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    • 2015
  • Objectives : The purpose of this study is to analyze the trends in foreign clinical trials for pediatric asthma in complementary and alternative medicine (CAM). Methods : We reviewed 31 randomized controlled trials (RCT) for pediatric asthma treatment in CAM published from 2005 to 2015 in PubMed and analyzed their treatments, compounds of herbal medicines, acupoints, methods of assessment, and treatment results. Results : The treatments used in the studies were herbal medicines, acupuncture, acupoint application, breathing training, supplement, normocaloric diet, yoga, massage therapy, and art therapy. The frequently used herbs were Asari Herba Cum Radix (細辛). Ephedrae Herba (麻黃), Astragali Radix. The most common acupoints were Feishu (肺兪, BL13). The methods of assessment in pediatric asthma were symptom scale, questionnaire of Quality of Life, lung function test, laboratory studies, and medication usage. In 28 out of 31 studies, treatment group gets better than non-treated group. Conclusions : This study shows that CAM is effective in treating pediatric asthma. More clinical studies using objective outcome measures are needed to prove its efficacy clearly.

Peroxisome Proliferator-activated Receptor ${\gamma}$ Is Not Associated with Adipogenesis in Female Mice

  • Yoon, Mi-Chung;Jeong, Sun-Hyo
    • Biomedical Science Letters
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    • v.14 no.3
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    • pp.139-146
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    • 2008
  • The peroxisome proliferator-activated receptor ${\gamma}$ $(PPAR{\gamma})$ plays a central role in adipogenesis and lipid storage. The $(PPAR{\gamma})$ ligands, thiazolidinediones (TZDs), enhance in vitro adipogenesis in several cell types, but the role of the TZDs on in vivo adipogenesis is still poorly understood. To investigate how $PPAR{\gamma}$ ligand troglitazone regulates adipogenesis in female mice, we examined the effects of the troglitazone on adipose tissue mass, morphological changes of adipocytes, and the expression of $PPAR{\gamma}$ target and adipocyte-specific genes in low fat diet-fed female C57BL/6 mice. Administration of troglitazone for 13 weeks did not change body and total white adipose tissue weights compared with control mice. Troglitazone treatment also did not cause a significant decrease in the average size of adipocytes in parametrial adipose tissue although it is reported to increase the number of small adipocytes in male animals. Troglitazone did not affect the mRNA expression of $PPAR{\gamma}$ and its target genes as well as adipocyte-specific genes in parametrial adipose tissue. These results suggest that $PPAR{\gamma}$ does not seem to be associated with adipogenesis in females with functioning ovaries and that its inability to induce adipogenesis may be due to sex-related factors.

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The Ferroelectric Frequency characteristics of $Bi_{4-x}La_{x}Ti_{3}O_{12}$ ceramics with the variation of Lanthanum additives (La 첨가량에 따른 $Bi_{4-x}La_{x}Ti_{3}O_{12}$ 강유전체의 주파수특성)

  • Kim, Eung-Kwon;Park, Bok-Gi;Park, Gi-Yub;Park, Choon-Bae
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2001.11b
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    • pp.463-466
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    • 2001
  • In recent year, Ferroelectric $BLT(Bi_{4-x}La_{x}Ti_{3}O_{12})$ is a promising candidate materials. This study was practiced to make good conditions of BL T targets. In this study, calcination and sintering temperature were kept at $750^{\circ}C$, $1100^{\circ}C$ for 2 hour respectively. the density obtained 7.612, 7.98, $7.877g/cm^{3}$ as $La_{2}O_{3}$ contents were 0.0mol%, 0.25mol%, 0.5mol%. Especially, the lanthanum content of 0.5 mol% measured C-axis (117) preferred orientation more than the others targets in the XRD. In $\varepsilon_{r}-f$ relationship using by HP 4194 A impedance analyzer, the 0.5 mol% observed above 200 relative dielectric constant. but the dissipation factor was higher than others targets at 100Hz~13MHz range. SEM photograph with the content of $La_{2}O_{3}$ was observed like rod and plate types.

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Effect of Gleditsiae Spina extract on immune cells and cytokines in OVA-induced asthmatic mice (급각자가 천식모델 생쥐의 면역세포 및 사이토카인에 미치는 영향)

  • Song, Sang-Jin;Park, Yang-Chun
    • The Journal of Internal Korean Medicine
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    • v.26 no.1
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    • pp.143-155
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    • 2005
  • Objective : The purpose of this research is to examine the effects of Gleditsiae Spina (GS) extract on immune cells and cytokines in ovalbumin (OVA)-induced asthmatic mice. Methods : In vivo, C57BL/6 mice were sensitized and handicapped by OVA for 12 weeks. During this experiment, the one group was then treated with GS extract for the later 8 weeks (3 times per week) and analyzed by ELISA, flow cytometer and RT-PCR. Results : In vivo, there were significant decreases in eosinophils, IL-4, IL-5, IL-13, IgE in BALF (bronchoalveolar lavage fluid). However, $IFN-{\gamma}$ in BALF of GS group increased significantly, compared with that of control group. Additionally, the population of $CD3e^-/CCR3^+,\;CD69^+/CD3e^+,\;IgE^+/B220^+,\;CD11b^+/Gr-l^+$ cells in the GS group decreased. Conclusion : The results of this study support a role for GS as an effective treatment for asthma in its experimental success in significantly decreasing inflammation and asthma reactions, and in increasing $IFN-{\gamma}$, which helps prevent such reactions.

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Effects of Pinelliae Rhizoma on immunocyte and cytokine production in asthma model mouse (반하(半夏)가 천식모델 생쥐의 면역세포 및 사이토카인에 미치는 영향)

  • Song, Jae-Jin;Park, Yang-Chun
    • The Journal of Internal Korean Medicine
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    • v.26 no.1
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    • pp.156-168
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    • 2005
  • Objective : The purpose of this research is to examine the effects of Pinelliae Rhizoma (PR) extract on immune cells and cytokines in ovalbumin (OVA)-induced asthmatic mice. Methods : In vivo, C57BL/6 mice were sensitized and handicapped by OVA for 12 weeks. During this experiment, the one group was then treated with PR extract for the 8 weeks (3 times per week) and analyzed by ELISA and flow cytometer. Results : In vivo, there were significant decreases in eosinophils, IL-4, IL-5, IL-13, IgE in BALF (bronchoalveolar lavage fluid) compared with that of control group. However, $IFN-{\gamma}$ in BALF of GS group increased significantly, compared with that of control group. Additionally, the population of $CD3e^-/CCR3^+,\;CD69^+/CD3e^+,\;IgE^+/B220^+,\;CD11b^+/Gr-l^+$ cells in the PR group decreased, compared with that of control group. Conclusion : The results of this study support a role for PR as an effective treatment for asthma in its experimental success in significantly decreasing inflammation and asthma reactions, and in increasing $IFN-{\gamma}$, which helps prevent such reactions.

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Studies on the Wood Properties of Lesser-Known Species Grown in Indonesia(III) - The Fundamental Wood Properties of Kebambang, Bawang-bawang and Garu buaya - (인도네시아산 미이용 수종의 목재성질(III) - Kebambang, Bawang-bawang 및 Garu buaya 목재의 기초성질 -)

  • 정성호;정두진;박병수;이도식;조성택
    • Journal of the Korea Furniture Society
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    • v.11 no.1
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    • pp.13-23
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    • 2000
  • This study was carried out to investigate the wood properties for development the proper uses of lesser-known tree species. The tested species are Kebambang(Pentace sp.), Bawang-bawang(Dysoxylum alliaceum Bl .), Garu buaya( Gonystylus brunescens A. Shaw)grown in Indonesia. fundamental wood properties such as anatomical, physical, mechanical and chemical properties and characteristics related to wood processing were examined. The results are summarized as follows : The woods of these species are diffuse porous, coarse textured, and interlocked grained. The heartwood of Kebambang is distinguished clearly to the sapwood, but the heartwood of other species are not distinguished clearly to the softwood. The woods of Kebambang and Bawang-bawang have the moderate weight density and the low strength properties, but Garu buaya has the high weight density and the high strength properties. The woods of these species has high shrinkage. The sawing characteristics of Kebambang are excellent but the other species are moderate. The machining characteristics by planer and drying characteristics of these species are moderate. These woods has poor characteristics in bending processing and decay durability. The wood of Bawang-bawang has high content of the extractives and lignin.

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Study on Atitumor and Immunomodulating Acivities of Polysaccharide Fractions from Panax ginseng : Comparison of effects of neutral and acidic polysaccharide fraction

  • Kim, Young-Sook;Kang, Kyu-Sang;Kim, Shin-Il
    • Archives of Pharmacal Research
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    • v.13 no.4
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    • pp.330-337
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    • 1990
  • The crude polysaccharide from Panax ginseng prepared by hot water extration and precipiation with ethanol was further fractionated into neutral and acidic fractions by DEAE- cellulose ion exchange chromatography. The chemical compositions were 85.0% carbohydrorate and 15.0% protein for the neutral fraction, and 28.4% carbohydrate, 10.0% protein and 29.0% uronic acid for the acidic fraction. The acidic fraction was more effective in increasing of the ratio of spleen to body weight, the number of antibody secreting cells to SRBC and phagocytic activity of reticuloendothelial system, as well as antitumor activity against the solid form of sarcoma 180 in ICR mice than the neutral fraction. All polysaccharide fractions were mitogenic to cultured spleen cells of C57BL/6 mice. However, FA was different from FN in the co-mitogenicities with lectin mitogens. Both crude and acidic fractions potentiated remarkably the mitogenic activity of PHA-P or LPS in dose-dependent manner but neutral fraction enhanced only that of LPS. Three polysaccharide fractions had no effect on that of Con A. These results suggest that the acidic fraction may stimulate B and Td cells as well as macrophages while the neutral fraction may simulate only B cells and macropages.

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The Effect of Hominis Placenta Herbal Aupuncture Therapy on the Postpartum Women's Heat Feeling, Sweat and Thirst (산모의 열감(熱感), 한출(汗出), 갈증(渴症)에 자하거 약침이 미치는 효과)

  • Kim, Tae-Hee;Park, Ka-Young;Park, Ji-Young
    • The Journal of Korean Obstetrics and Gynecology
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    • v.23 no.3
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    • pp.139-155
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    • 2010
  • Purpose: The aim of this study was to investigate the effect of hominis placenta herbal aupuncture therapy on the postpartum women's heat feeling, sweat and thirst. Methods: The subjects were 25 women who admitted for postpartum treatment in Hospital of Woosuk University from 15th November 2008 to 5th February 2010. The control group(normal saline group, NSG) were 12 women and hominis placenta herbal acupunture treatment group(HPAG) were 13 women. We injected at Kwanwon(CV4), Sinsu(BL23). We checked VAS(heat feeling, sweat and thirst), vital sign, wrong response. We tested CBC, 7-zone-diagnostic system, HRV before and after clinical study. Results: VAS of thirst was significantly decresed in the HPAG than NSG. Ln(LF) of HPAG was lower than NSG after clinical study. Conclusion: The results suggest that hominis placenta herbal aupuncture therapy may be useful for the postpartum women.

Literature Review of Korean Medicine Studies for Fibromyalgia Syndrome (FMS) (섬유근통 증후군의 한의학적 연구에 대한 문헌 조사: 국내 논문을 대상으로)

  • Lee, Jung-Min
    • Journal of Korean Medicine Rehabilitation
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    • v.27 no.2
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    • pp.55-66
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    • 2017
  • Objectives This study aimed to review studies in Korean medicine for fibromyalgia syndrome (FMS). Methods We conducted search across 3 electronic databases (Korean traditional knowledge portal, RISS, Oasis) to find studies for FMS in Korean medicine. Studies of Korean medicine for FMS were included and analysed. Results 15 studies were included. 2 studies were reviews and 13 studies were case reports. Total numbers of patients in case studies were 15. In case studies, acupuncture (100%), herbal medicine (76.9%), Korean physical therapy (69.2%), pharmacopuncture (53.8%), Chuna (46.1%) and moxibustion (30.7%) etc. were used. BL23 in acupuncture and CV12 in moxibustion were most frequently used. Gamisoyo-san in herbal medicine and visual analogue scale (VAS) in outcome measure were most frequently used. Conclusions This systematic review found encouraging but limited evidence of Korean medicine for FMS. I expect various trials such as randomized clinical trial or animal experimentation and more case reports. And systemic review for FMS in other national journals is needed.