• Title/Summary/Keyword: Hl

Search Result 1,042, Processing Time 0.032 seconds

Effect of Dietary Protein and Lipid Levels on Compensatory Growth of Juvenile Olive Flounder (Paralichthys olivaceus) Reared in Suboptimal Temperature

  • Cho, S.H.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.24 no.3
    • /
    • pp.407-413
    • /
    • 2011
  • Effect of dietary protein and lipid levels on compensatory growth of juvenile olive flounder (Paralichthys olivaceus) was determined in suboptimal temperature ($13.4{\pm}1.42^{\circ}C$). Five hundred forty fish averaging 79.2 g were randomly distributed into 27 of 300 L flow-through tanks (20 fish/tank). Nine treatments were prepared in triplicate: fish were hand-fed with control (C) diet for 10 weeks (10WF-C); four fish groups were starved for 1 week and then fed with C, high protein (HP), high lipid (HL) and combined high protein and high lipid (HPL) diets for 9 weeks, referred to as 9WF-C, 9WF-HP, 9WF-HL, 9WF-HPL, respectively; and other four fish groups were starved for 2 weeks and then fed with C, HP, HL and HPL diets for 8 weeks, referred to as 8WF-C, 8WF-HP, 8WF-HL and 8WF-HPL, respectively. Weight gain and specific growth rate of fish in 9WF-HP, 9WF-HPL, 8WF-HP and 8WF-HPL treatments were higher than those of fish in 9WF-HL and 8WF-HL treatments. Feed efficiency of fish in 8WF-HP treatment was higher than that of fish in 9WF-C, 9WF-HL and 8WF-HL treatments. Protein efficiency ratio of fish in 10WF-C, 8WF-C, 8WF-HP and 8WF-HPL treatments was higher that that of fish in 9WF-HL and 8WF-HL treatments. Juvenile olive flounder subjected to 2-week feed deprivation could achieve full compensatory growth with dietary supplementation of protein or combined high protein and high lipid.

Recovery of Poly(3-hydroxybutyrate) from Recombinant Escherichia coli by Autolysis with Bacteriophage Lambda (박테리오파아지의 세포용해작용을 이용한 재조합 대장균으로부터의 Poly(3-hydroxybutyrate) 회수)

  • 정옥희;한세광장용근이상엽
    • KSBB Journal
    • /
    • v.10 no.5
    • /
    • pp.533-539
    • /
    • 1995
  • An autolytic system based on a thermally inducible phage lambda, λHL1, has been applied for the recovery of poly(3-hydroxybutyrate) [PHB] from a recombinant Escherichia coli XL1-Blue, harbouring a plasmid (pSYL105) containing the Alcaligenes eutrophus PHB biosynthesis genes. The lytic capability ofλHL1 was evaluated in flask culture for both lysogens, XL1-Blue (λHL1) and XL1-Blue (λHL1, pSYL105). When the optical density of culture at 600nm(OD600) reached 0.2, cell lysis was induced by increasing the temperature from $30^{\circ}C$ to $42^{\circ}C$. Most cells of XL1-Blue ($\lambda$HL1) were lysed by the autolytic system in an hour after the thermal induction, while the lytic efficiency was slightly lower for XLl-Blue (λHL1, pSYL105). The existence of pSYL105 in cells seemed to inhibit, to some extent, the lytic capability of λHL1 even at low PHB content. The lylic efficiency remarkably decreased as the induction was delayed to allow PHB accumulation. When a chemical induction using 2% (v/v) chloroform was introduced after an hours of thermal induction, we could obtain a good lytic efficiency.

  • PDF

Growth Inhibitory Effects of Sesamolin from Sesame Seeds on Human Leukemia HL-60 Cells (참깨에서 분리된 세사몰린의 백혈병 세포주 HL-60 생장억제 효과)

  • Kim, Kwan-Su;Kang, Sam-Sik;Ryu, Su-Noh
    • Korean Journal of Pharmacognosy
    • /
    • v.34 no.3 s.134
    • /
    • pp.237-241
    • /
    • 2003
  • This study was carried out to test the growth inhibitory effects of sesamolin obtained from sesame seeds. Sesamolin inhibited the growth of human leukemia HL-60 cells in cultures and the synthesis of macromolecules in dose- and time-dependent manners. Sesamolin in the $60{\sims}100\;{\mu}g/ml$ range was cytostatic. At concentrations greater than $200\;{\mu}g/ml$ sesamolin was cytocidal to HL-60 cells and at $60\;{\mu}g/ml$ inhibited the synthesis of DNA, RNA and protein in HL-60 cells by 35.1, 6.1, and 5.3%, whereas at $200\;{\mu}g/ml$ these inhibitions were 86.8%, 81.5% and 96.7%, respectively. The inhibitory effect of sesamolin on DNA synthesis was irreversible.

Reactive Oxygen Species and Antioxidant Enzyme Activities in Accordance with the Cytotoxicity of Farnesol Against HL-60 Cells (Farnesol의 HL-60 세포에 대한 세포독성과 활성산소 및 항산화효소 활성 변화)

  • Lim, So-Yoon;Park, Sie-Won
    • YAKHAK HOEJI
    • /
    • v.50 no.6
    • /
    • pp.372-380
    • /
    • 2006
  • Farnesol in fruits, vegetables, herbs and leaves acts as bioactive component related with prevention of cancer and psychological malaise. We investigated the cytotoxic effects of farnesol on human leukemic cell, HL-60 cells, by MTT assay using 3- (4,5-Oirnethylthiazol-2-yl) -2,5-diphenyltetrazoliumbromide. Farnesol (0.1${\sim}$50 ${\mu}$g/ml) exhibited cytotoxicities against HL-60 cells in concentration and culture period dependent manner, In the cytotoxic condition induced by farnesol against HL-60 cells, the generation of reactive oxygen species such as O$_2$ and H$_2$O$_2$ were found to be considerably increased. The most prominent augmentations of O$_2$ and H$_2$O$_2$ were over five folds of controls. In an attempt to explore the response of HL-60 cells to the increased O$_2$ and H$_2$O$_2$, superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase activities of HL-60 cells treated with farnesol were measured. SOD and GPx activities were found to be remarkably elevated by addition of farnesol showing the best results of 273% and 167% of controls, respectively: All data suggest that farnesol may have played as an apoptosis inducer in HL-60 cells via production of reactive oxygen species (ROS) and HL-60 cells may have failed to overcome the damage of ROS on account of still defcient ROS scavengers including SOD and GPx.

Application of the Modified Real-Time Medical Information Standard for U-Healthcare Systems by Using HL7 and Modified MFER(TS-MFER) (HL7과 수정된 MFER(TS-MFER)을 접목한 U-healthcare 실시간 의료정보 표준화 적용)

  • Uhm, Jin-U;Park, Sang-Hyun
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.37 no.8C
    • /
    • pp.680-689
    • /
    • 2012
  • U-healthcare is maintaining of users' health without limitations from where and when they are. As it is important to guarantee compatibility between heterogeneous systems in U-healthcare, a medical information standard is compulsory. An adequate standard means that it is easy to understand and it can cover wide range of information types and various medical devices. Among them, HL7(Helath Level 7) has those traits, but HL7 is not adequate for non-text message, especially for medical waveform. JAHIS suggested an appropriate standard, that is MFER. MFER has many advantages for representation of medical waveform, but it is still not good for real-time applications. In U-healthcare, there are lots of needs for real-time application, so we need a standard that can have useful properties of MFER and HL7, and support real-time. In this article, there are two main topics. The first one is introducing MFER and HL7. Second, the new scheme(TS-MFER with HL7) is developed by modifying MFER and HL7 for real-time applications.

EFFECTS OF PROINFLAMMATORY CYTOKINE ON THE BIOLOGICAL ACTIVITIES OF PROMYELOCYTIC CELL LINE HL - 60 (Promyelocytic Cell Line HL - 60의 생물학적 활성에 대한 기염증성 Cytokines의 작용)

  • Lee, In-Kyu;Oh, Kwi-Ok;Kim, Hyung-Seop
    • Journal of Periodontal and Implant Science
    • /
    • v.25 no.3
    • /
    • pp.635-647
    • /
    • 1995
  • Human polymorphonuclear leukocytes(PMN) constitute a first line of defense against all forms of injury and microbial challenge, which share a common cell lineage with macrophage. Microbial component LPS activates macrophages to produce IL-1, MIP-1${\alpha}$, -1${\beta}$, TNF-${\alpha}$ and IL-6, etc. Those cytokines have autocrine function to the macrophages, and paracrine function to other cell such as PMN and affect them to produce some biological functions. Having a responsive homogeneous cell line, HL-60, offers us the possibility of studying extensively on the function of PMN, which were not possible previously with peripheral PMN, due to the short-lived nature and difficulty of getting a purified PMN. In the present study, I performed MIP-1 receptor binding assay using HL-60 cell and human peripheral PMN. Also, in vitro antimicrobial assay was performed using differentiated or undifferentiated HL-60 cell. Differentiation was induced by treatment with 500 M of $N^6,O^2-dibutyryl$ adenosine 3'5' cyclic monophosphate(dbcAMP) (PMN-like cell), or 20ng/ml of 12-O-tetradecanoylphorbol-13-acetate(TPA) (macrophage/monocyte-like cell). Receptors for MIP-1${\alpha}$ were identified on dbcAMP-treated HL-60 as well as peripheral PMN. However, bound radioactive MIP-1${\alpha}$ on differentiated HL-60 was much higher than that of peripheral PMN, which suggest receptor number of differentiated HL-60 cell is higher than that of peripheral PMN. Although both of TPA and dbcAMP treatment significantly enhanced antimicrobial action of HL-60 cell, dbcAMP-treated cell(PMN-like HL-60) killed S.aureus more effectively in this experiment. TPA or dbcAMP treatment significantly enhanced antimicrobial action of undifferentiated HL-60 cell. MIP-1${\alpha}$ further increased enhancing effect of TPA or dbcAMP. IL-1${\alpha}$, however, increased only dbcAMP-induced enhancing effect of antimicrobial action of HL-60 cell. These results suggest that differentiated HL-60 cell could replace peripheral PMN in analysis of various biological functions of cytokines on PMN cell.

  • PDF

Influence of Environmental Conditions on c-Jun N-terminal Kinase Mediated Apoptosis of HL60 Cells by Anti-Cancer Drugs

  • Hur, Eun-Hye;Kang, Mun-Jung;Kim, Sung-Doo;Lim, Sung-Nam;Kim, Dae-Young;Lee, Jung-Hee;Lee, Kyoo-Hyung;Lee, Je-Hwan
    • Biomolecules & Therapeutics
    • /
    • v.18 no.1
    • /
    • pp.32-38
    • /
    • 2010
  • Activation of JNK has long been associated with the apoptotic response induced by various anti-cancer drugs including doxorubicin, vinblastine, and etoposide. In this study, we examined and compared patterns of apoptosis and JNK activation according to three different anti-cancer drugs (daunorubicin, vinblastine, and etoposide) and two different sources of HL60 cells (Jackson Laboratory and ATCC). HL60 cells from Jackson Laboratory (HL60/RPMI) were maintained in RPMI 1640 containing 5% fetal bovine serum and those from ATCC (HL60/IMDM) in IMDM containing 20% fetal bovine serum as to each manufacture's guideline. In general, HL60/RPMI cells were more sensitive to anti-cancer drugs compared to HL60/IMDM cells, demonstrated by the XTT and flow cytometric analyses. Apoptotic pathways after treatment with anti-cancer drugs seemed to be different between HL60/RPMI (daunorubicin and etoposide, caspase 3 dependent, but caspase 8 or 9 independent; vinblastine, caspase 3 independent) and HL60/IMDM (caspase 3 and caspase 9 dependent). The expression of apoptotic protein, BID, was consistent with caspase 3 activation. Immunoblotting of phospho-JNK and JNK kinase assay showed JNK activation by all three anti-cancer drugs in HL60/RPMI, while JNK activation was observed only in vinblastine-treated cells in HL60/IMDM. Our study results suggest that in vitro environmental conditions have a significant influence on JNK mediated apoptosis of HL60 cells by anti-cancer drugs and in vitro culture conditions are important factors in JNK or possibly other MAPK related studies.

Syntheses, Spectral, Surface Morphological and Gamma Ray Irradiation Studies of Some Oxomolybdenum(V) and Dioxomolybdenum(VI) Complexes of an Azo Dye Derived from 4-aminoantipyrine

  • Nair, M.L. Harikumaran;Appukuttan, Anju.S.
    • Journal of the Korean Chemical Society
    • /
    • v.56 no.2
    • /
    • pp.217-227
    • /
    • 2012
  • Syntheses of some novel oxomolybdenum(V) and dioxomolybdenum(VI) complexes with an azo dye methoxyphenolazoantipyrine (HL) derived from 4-aminoantipyrine and 2-methoxyphenol are reported. The complexes have been characterized by elemental analyses, molar conductance, magnetic susceptibility data, IR, UV-Vis, $^1H$ NMR, EPR and FAB mass spectral studies. The physicochemical studies and spectral data indicate that HL acts as a bidentate chelating ligand. The complexes have the general formulae [$MoO(HL)XCl_2$] and [$MoO_2(HL)XCl$],where X=Cl, NCS or $NO_3$. All the complexes are found to have distorted octahedral geometry. Structural and morphological characterization of the complexes [$MoO(HL)Cl_3$](1) and [$MoO_2(HL)Cl_2$](4) before and after gamma ray irradiation,was performed by X-ray diffraction and scanning electron microscopy( SEM).The ligand and the complexes were screened for their possible antimicrobial activities.

Adoption of MFER and HL7 Standard for Shared Electronic Medical Record (공유 전자의무기록을 위한 MFER과 HL7 표준 적용)

  • Kim, Hwa-Sun;Park, Chun-Bok;Hong, Hae-Sook;Cho, Hune
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.57 no.3
    • /
    • pp.501-506
    • /
    • 2008
  • Medical environments incorporate complex and integrated data networks to transfer vast amounts of patient information, such as images, waveforms, and other digital data. To assure interoperability of images, waveforms and patient data, health level seven(HL7) was developed as an international standard to facilitate the communication and storage of medical data. We also adopted medical waveform description format encoding rule(MFER) standard for encoding waveform biosignal such as ECG, EEG and so on. And, the study converted a broad domain of clinical data on patients, including MFER, into a HL7 message, and saved them in a clinical database in hospital. According to results obtained in the test environment, it was possible to acquire the same HL7 message and biosignal data as ones acquired during transmission. Through this study, we might conclude that the proposed system can be a promising model for electronic medical record system in u-healthcare environment.

Interrelationship between Cell Differentiation and Expression of mRNA for Transferrin in HL-60 Leukemia Cell Line

  • Lee, Soo-Young;Chi, Chung-Hee;Kim, You-Mie
    • BMB Reports
    • /
    • v.33 no.4
    • /
    • pp.308-311
    • /
    • 2000
  • The interrelationship between the differentiation and expression of mRNA for transferrin in the HL-60 leukemia cell line was studied. Transferrin mRNA was expressed in HL-60 leukemia cells and the amount was 50% of that in the positive control cell line, HepG-2 cells. The expression of $T_f$ mRNA in HL-60 cells was not regulated by IL-1, IL-6 and $TNF-{\alpha}$, respectively. The expression of $T_f$ mRNA in the differentiated cells into a granulocyte lineage by DMSO, or all-trans RA, was up-regulated (160-170% of control cells); whereas, the expression was not regulated in the differentiated cells into a macrophage lineage by PMA. These results suggest that the differentiation to a granulocyte lineage of HL-60 leukemia cells appear to be related with the upregulation of transferrin mRNA expression.

  • PDF