• 제목/요약/키워드: tktA

검색결과 9건 처리시간 0.02초

통규탕의 즉각형 알레르기 반응 억제 효과에 관한 실험적 연구 (Experimental Studies on the Inhibitory Effect of Immediate-Type Allergic Reaction of Tongku-tang)

  • 김영복;윤용갑
    • 동의생리병리학회지
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    • 제16권1호
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    • pp.111-116
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    • 2002
  • This report describes an inhibitory effect of Tongku-tang(TKT) on mast cell-mediated immediate-type allergic reactions. TKT is an Oriental herbal prescription, which has been successfully applied for the treatment of allergic disorders, mainly skin anaphylactic diseases in eastern medicine. TKT has concentration-dependently inhibited the ear swelling response induced by intradermal injection of non-specific mast cell degranulator compound 48/80 in mice. TKT also inhibited mast cell-dependent passive cutaneous anaphylaxis activated by dinitrophenyl (DNP)-IgE antibody in rats. I studied the effect of TKT on the histamine and β-hexosaminase release from the rat peritoneal mast cells by compound 48/80. TKT did not inhibit significantly the histamine and β-hexosaminase release from the rat peritoneal mast cells by compound 48/80. However, TKT inhibited both TNF-α and IL-1β secretion induced by phorbol 12-myristate 13-acetate and A23187 respectively. These results provide evidence that TKT may be beneficial in the treatment of immediate-type allergic reaction.

Effects of tktA, $aroF^{FBR}$and aroL Expression in the Tryptophan-Producing Escherichia coli

  • Kim, Tae-Hyun;Namgoong, Suk;Kwak, Joon-Hyeok;Lee, Se-Yong;Lee, Heung-Shick
    • Journal of Microbiology and Biotechnology
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    • 제10권6호
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    • pp.789-796
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    • 2000
  • In order to analyze the effects of tktA, $aroF^{FBR}$, and aroL expression in a tryptophan-producing Escherichia coli, a series of plasmids carrying the genes were constructed. Introduction of tktA, $aroF^{FBR}$, and aroL into the E. coli strain resulted in approximately 10-20 fold increase in the activities of transketolase, the feedback inhibition-resistant 3-deoxy-D-arabinoheptulsonate-7-phosphate synthase, and shikimate kinase. Expression of $aroF^{FBR}$ in the aroB mutant strain of E. coli resulted in the accumulation of 10 mM of 3-deoxy-D-arabinoheptulsonate-7-phosphate (DAHP) in the medium. Simultaneous expression of tktA and $aroF^{FBR}$ in the strain further increased the amount of excreted DAHP to 20 mM. In contrast, the mutant strain which has no gene introduced accumulated 0.5 mM of DAHP. However, the expression of tktA and $aroF^{FBR}$ in a tryptophan-producing E. coli strain did not lead to the increased production of tryptophan, but instead, a significant amount of shikimate, which is an intermediate in the tryptophan biosynthetic pathway, was excreted to the growth medium. Despite the fact that additional expression of shikimate kinase in the strain could possibly remove 90% of excreted shikimate to 0.1 mM, the amount of tryptophan produced was still unchanged. Removing shikimate using a cloned aroL gene caused the excretion of glutamate, which suggests disturbed central carbon metabolism. However, when cultivated in a complex medium, the strain expressing tktA, $aroF^{FBR}$, and aroL produced more tryptophan than the parental strain. These data indicate that additional rate-limiting steps are present in the tryptophan biosynthetic pathway, and the carbon flow to the terminal pathway is strictly regulated. Expressing tktA in E. coli cells appeared to impose a great metabolic burden to the cells as evidenced by retarded cell growth in the defined medium. Recombinant E. coli strains harboring plasmids which carry the tktA gene showed a tendency to segregate their plasmids almost completely within 24h.

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한방 치료로 완전관해에 이른 폐로 전이된 유방암 1례 (Case of Complete Remission of Breast Cancer Metastasized to Lung Treated by Traditional Korean Therapy)

  • 한재복;하태현;김성수;성신
    • 동의생리병리학회지
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    • 제27권6호
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    • pp.818-822
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    • 2013
  • This report is aimed to investigate the effect of Traditional Korean Therapy (TKT) in treating recurred breast cancer metastasized to lung. A 53-year-old woman who was diagnosed as left breast cancer and underwent surgery, adjuvant chemotherapy and radiotherapy in early 2009 was admitted for the treatment of recurred, metastatic lung cancer in late 2012. She was treated with TKT including acupuncture, moxibustion and pharmacopuncture. The effect was evaluated with positron emission tomogram and computed tomogram (PET-CT). The metastatic tumors in both lungs were disappeared after the treatment for about 2 months. These results suggest that TKT is a therapeutic method to treat metastatic lung cancer originated from breast cancer.

한방치료와 XELOX 요법을 병행하여 호전된 간, 폐 전이 대장암 환자 1례 (A Case of Hepatic and Pulmonary Metastatic Colorectal Cancer Patient Treated by Traditional Korean Therapy and XELOX Chemotherapy)

  • 임창락;권강;서영찬;방선휘;김성수;성신
    • 대한암한의학회지
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    • 제17권1호
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    • pp.17-25
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    • 2012
  • Objective : This report is aimed to investigate the effectiveness of traditional korean therapy including intravenous Cultivated Wild Ginseng Pharmacopuncture (CWGP) and Soram immunopharmacopuncture with XELOX chemotherapy in treating metastatic colorectal cancer patient. Methods : A 47-year-old woman who was diagnosed as metastatic colorectal cancer on Oct 2011 was concurrently treated with traditional Korean therapy (TKT) and XELOX (capecitabine plus oxaliplatin) for 7 months. TKT includes intravenous CWGP, Soram immuno-pharmacopuncture, acupuncture, moxibustion, and herbal medicine. The effectiveness of therapies was evaluated with computed tomography and tumor marker levels such as carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA19-9). And pain on the lateral abdomen was recorded with Visual Analogue Scale (VAS). Results : The tumor mass size of metastatic liver was decreased from 10 cm to 4.3 cm. The tumor marker levels such as CEA and CA19-9 are also decreased. From these results, this case report suggests that the TKT with palliative chemotherapy may be a useful method to treat unresectable metastatic colorectal cancer.

Effects of Treadmill Training with Kinesio Taping of Tibialis Anterior on Muscle Function, Tibialis Anterior Muscle Strength, and Gait Ability in Poststroke Patients

  • Kim, Kyunghun;In, Taesung;Kim, Donghoon
    • Physical Therapy Rehabilitation Science
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    • 제10권3호
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    • pp.297-303
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    • 2021
  • Objective: Stroke patients generally have problems with motor function, muscle weakness, and gait.This study was purposed toevaluate the effect of the treadmill training with kinesio taping of tibialis anterior (TKT) on muscle function, tibialis anterior, muscle strength, and gait ability in poststroke patients. Design: A randomized controlled design Methods: The participants were randomly divided in the TKT group (experimental group) and treadmill training with sham kinesio taping (control group), with 21 patients assigned to each group. Both groups receive treadmill training with kinesio taping and sham kinesio taping for 30 minutes per day, five days per week, for four weeks. The motor function was measured using the Fugl-Meyer assessment. A disital manual muscle test and G-walk were used to evaluate ankle dorsiflexor and gait ability.Evaluation was performed baseline and 4 weeks after the experiment. Results: Both groups showed significantly more improvement in muscle function, tibialis anterior muscle strength, cadence, gait velocity, and stridelength in pre-post intervention change(p<0.05).The experimental group showed significantly more improvement in motor function, muscle strength, cadence, gait velocity, and stridelength ability comparedto the control group(p<0.05). Conclusions: These finding show the benefits of treadmill training with kinesio taping for functional recovery in poststroke patients

중금속, 제초제 및 항생제 검출용 남세균 유래 바이오 리포터 (Cyanobacterial bioreporters for detection of heavy metals, herbicide, and antibiotics)

  • 김수연;정원중;서계홍;유장렬;박연일
    • Journal of Plant Biotechnology
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    • 제35권2호
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    • pp.141-145
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    • 2008
  • 본 연구는 남세균 고유의 프로모터를 포함하는 유전자간 염기서열에 기반하여 환경위해성 검출용 바이오센서를 개발하고자 시도되었다. 포도당 처리에 의해서 유도되는 8종의 유전자 (atpI, ndbA, ctaD1, tkt, pgi, pdh, ppc, 그리고 rydA)의 프로모터 부위를 리포터 유전자의 일종인 발광유전자 (luxAB) 벡터 pILA (Genbank: AJ251840)에 도입시켜 재조합 벡터를 제조한 후 Synechocystis sp. PCC6803을 형질전환시킨 결과, pILA 벡터만을 포함하고 있는 대조구에 비해서 포도당 처리에 의해서 생물발광량이 5-25배 정도 현저히 증가함을 확인하였다. 또한 $Hg^{2+}$, $Cu^{2+}$, $Zn^{2+}$과 같은 중금속, $CN^-$, DCMU, DBMIB와 같은 제초제, 그리고 클로람페니콜이나 리팜피신과 같은 항생제에 의해서 생물발광이 현저히 억제되었다.

곡선부 주행시 궤간 가변 잠금부품들의 피로해석 (Fatigue Analysis of Locking Parts in the Gauge - Adjustable Wheel Set System in the Curved Track)

  • 김철수;안승호;정광우;장승호;김정규
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2006년도 추계학술대회 논문집
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    • pp.1-6
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    • 2006
  • The gauge - adjustable wheelset system in the transcontinental railway represents a more effective way in comparison with other techniques for overcoming difference in track gauges. Moreover, freight trains having the gauge - adjustable wheelsets will be run various curved tracks of Eurasian railroad network such as TKT, TCR and TSR. Therefore, to assure the safety of the gauge - adjustable adjustment wheelset system, it is necessary to evaluate durability of locking parts in the system during freight trains' service in the curved track. In this study, it was performed to estimate fatigue life of locking parts under lateral wheel pressure by using durability simulator.

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RNA Polymerase II Inhibitor, ${\alpha}$-Amanitin, Affects Gene Expression for Gap Junctions and Metabolic Capabilities of Cumulus Cells, but Not Oocyte, during In Vitro Mouse Oocyte Maturation

  • Park, Min-Woo;Lee, Hyun-Seo;Kim, Eun-Young;Lee, Kyung-Ah
    • 한국발생생물학회지:발생과생식
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    • 제17권1호
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    • pp.63-72
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    • 2013
  • A specific inhibitor of RNA polymerase II, ${\alpha}$-amanitin is broadly used to block transcriptional activities in cells. Previous studies showed that ${\alpha}$-amanitin affects in vitro maturation of cumulus-oocyte-complex (COC). In this study, we evaluated the target of ${\alpha}$-amanitin, and whether it affects oocytes or cumulus cells (CCs), or both. We treated ${\alpha}$-amanitin with different time period during in vitro culture of denuded oocytes (DOs) or COCs in comparison, and observed the changes in morphology and maturation status. Although DOs did not show any change in morphology and maturation rates with ${\alpha}$-amanitin treatment, oocytes from COCs were arrested at metaphase I (MI) stage and CCs were more scattered than control groups. To discover causes of meiotic arrest and scattering of CCs, we focused on changes of cumulus expansion, gap junctions, and cellular metabolism which to be the important factors for the successful in vitro maturation of COCs. Expression of genes for cumulus expansion markers (Ptx3, Has2, and Tnfaip6) and gap junctional proteins (Gja1, Gja4, and Gjc1) decreased in ${\alpha}$-amanitin-treated CCs. However, these changes were not observed in oocytes. In addition, expression of genes related to metabolism (Prps1, Rpe, Rpia, Taldo1, and Tkt) decreased in ${\alpha}$-amanitin-treated CCs but not in oocytes. Therefore, we concluded that the transcriptional activities of CCs for supporting suitable transcripts, especially for its metabolic activities and formation of gap junctions among CCs as well as with oocytes, are important for oocytes maturation in COCs.

국내 조피볼락(Sebastes sclegelii) 양식장에서 분리한 Streptococcus iniae의 표현형 및 유전형 특성 (Pheno- and genotyping of Streptococcus iniae isolated from cultured rockfish, Sebastes schlegelii at Korean coastal sites)

  • 김태호;한현자;김명석;조미영;김수진
    • 한국어병학회지
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    • 제36권2호
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    • pp.277-286
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    • 2023
  • Korean rockfish, Sebastes schlegelii, is a representative bony fish that belongs to the family Scorpaenidae and the order Scorpaeniformes. It has high ecological and economic value and is widely cultivated in many East Asian countries, including South Korea, Japan and China. One of streptococci, Streptococcus iniae, is Gram-positive cocci with a negative reaction for catalase and oxidase. The Korean rockfish shows clinical signs when infected with S. iniae, such as body darkening, bleeding, enlarged kidneys, blurred eyes, abdominal distension, etc., ultimately leading to death. The Korean rockfish causes significant economic losses every year in South Korea due to streptococcosis. In this study, we identified bacteria from the fish using polymerase chain reaction and conducted analyses of hemolytic activity and biochemical tests using API 20 STREP and API ZYM systems. Results of confirming the hemolytic activity (n=4) observed in alpha-type hemolysis (25%), beta-type hemol- ysis (50%), and gamma-type hemolysis (25%) of isolates. The biochemical test results exhibited sig- nificant variation among S. iniae. Additionally, we performed intraperitoneal injection with S. iniae in the fish and analyzed the phylogenetic tree using housekeeping genes of S. iniae, including cpsD, arcC, glnA, groEL, gyrB, mutS, pheT, prkC, rpoB, and tkt, via multilocus sequence typing (MLST). The lethal dose (LD50) showed strong pathogenicity, such as 3.34 × 10 colony-forming unit (CFU)/ml for 23FBStr0601 strain and 7.16 × 10 CFU/ml for 23FBStr0602 strain. 23FBStr0603 strain showed relatively low pathogenicity at 1.73 × 105 CFU/ml. The strains 23FBStr0601 and 23FBStr0602, which showed strong pathogenicity, clustered into one monophyletic group. The 23FBStr0603 strain showed weak pathogenicity and formed a monophyletic group with KCTC 3657.