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  • 1
    Electronic Resource
    Electronic Resource
    Current circulatory support with step-by evaluation of biventricular and pulmonary function (2000)
    Springer
    Journal of artificial organs 3 (2000), S. 158-161 
    Details
    ISSN: 1619-0904
    Keywords: Circulatory support ; Step-by evaluation ; Biventricular function ; Pulmonary function ; Left ventricular assist system
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract The purpose of this study was to examine the clinical results of current circulatory support with step-by evaluation of biventricular and pulmonary function. Six patients who had undergone cardiac surgery and two non-cardiotomy patients underwent current circulatory support with the step-by functional evaluation. Of six postcardiotomy patients, four patients with severe ischemic heart disease underwent coronary artery bypass giafting (CABG), and the remaining two patients with advanced aortic stenosis underwent aortic valve replacement (AVR). All six patients received intra-aortic balloon pump (IABP) support before or during operation. Two non-cardiotomy patients suffered from dilated cardiomyopathy, and both showed acute deterioration with cardiogenic shock or low cardiac output syndrome. Three of six postcardiotomy patients with circulatory support were weaned and discharged from the hospital. Two noncardiotomy patients in critical condition were successfully supported for more than 6 months by the Novacor left ventricular assist system (LVAS). We conclude that the ongoing current strategy of circulatory support with step-by functional evaluation might be applied for various types of severe heart failure with or without associated cardiac operations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02479984
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  • 2
    Electronic Resource
    Electronic Resource
    Conversion of L-sorbose to L-sorbosone by Gluconobacter melanogenusSee refs. 3, 4, and 5 for previous papers in this series. (1975)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 17 (1975), S. 349-359 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Growing cultures, washed cells, and cell-free extracts of Gluconobacter melanogenus IFO 3293 were found to convert L-sorbose to L-sorbosone. The product was identified by thin layer chromatography of the 2, 4-dinitrophenylhydrazone, and by paper partition chromatography using chemically prepared materials as standards. Factors influencing the conversion included incubation temperature and composition of the growth medium. Addition of betaine or choline to the growing cultures stimulated conversion of L-sorbose to L-sorbosone.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260170305
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  • 3
    Electronic Resource
    Electronic Resource
    Repeated batch production of L-phenylalanine from phenylpyruvate and NH4Cl by immobilized cells of Nocardia opaca under hydrogen high pressure (1988)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 31 (1988), S. 834-840 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Among various microbial cells examined under screening conditions, Nocardia opaca showed the highest activity for production of phenylalanine from phenylpyruvate. Here NH4Cl as well as amino acids were used as an amino donor for phenylalanine production. The phenylalanine production rate increased with increasing hydrogen pressure. The specific activity of phenylalanine dehydrogenase was increased by culturing N. opaca cells in nutrient broth containing 0.3% phenylalanine. As a result, the phenylalanine production rate increased from 0.69 to 4.4 μmol/min g dry cells. Immobilized cells were activated in nutrient broth containing ZnCl2 before phenylalanine production. Phenylalanine dehydrogenase activity and cell number in the gel increased with increasing incubation time, and the maximum phenylalanine dehydrogenase activity was obtained at 36 h incubation. Then, phenylalanine was produced from phenylpyruvate, NH4Cl, and 100 atm H2 with the activated immobilized cells. The rate of phenylalanine production was 0.24 μmol/min cm3 gel. The conversion of phenylpyruvate to phenylalanine was 82%. Immobilized cells retained 76% of the initial phenylalanine production rate after 10 h reactions were repeated 11 times with two intervening reactivations.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260310811
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  • 4
    Electronic Resource
    Electronic Resource
    Mechanism of microbial flotation using Thiobacillus ferrooxidans for pyrite suppression (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 41 (1993), S. 671-676 
    Details
    ISSN: 0006-3592
    Keywords: Thiobacillus ferrooxidans ; bacterial adhesion ; flotation ; coal ; pyrite ; desulfurization ; ore dressing ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Microbial desulfurization might be developed as a new process for the removal of pyrite sulfur from coal sluries such as coal-water mixture (CWM). An application of iron-oxidizing bacterium Thiobacillus ferrooxidans to flotation would shorten the periods of the microbial removal of pyrite from some weeks by leaching methods to a few minutes. The floatability of pyrite in flotation was mainly reduced by T. ferrooxidans itself rather than by other microbial substances in bacterial culture as additive of flotation liquor. Floatability was suppressed within a few seconds by bacterial contact. The suppression was proportional to increasing the number of cells observed between bacterial adhesion and the suppression of floatability. If 25% of the total pyrite surface area covered with the bacteria, pyrite floatability would be completely depressed. Bacteria that lost their iron-oxidizing activities by sodium cyanide treatment were also able to adhere to pyrite and reduced pyrite floatability as much as normal bacteria did. Thiobacillus ferrooxidans ATCC 23270, T-1, 9, and 11, which had different iron-oxidizing abilities, suppressed floatability to similar-levels. The oxidizing ability of bacteria did not influence the suppressing effect. These results showed the mechanism of the suppression of pyrite floatability by bacteria. Quick bacterial adhesion to pyrite induced floatability suppression by changing the surface property from hydrophobic. The quick adhesion of the bacterium was the novel function which worked to change the surface property of pyrite to remove it from coal. © 1993 John Wiley & Sons, Inc.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260410611
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  • 5
    Electronic Resource
    Electronic Resource
    Chemiluminescent immunoassay (CLIA) for salmon growth hormone (GH) (1997)
    New York : Wiley-Blackwell
    Journal of Bioluminescence and Chemiluminescence 12 (1997), S. 271-275 
    Details
    ISSN: 0884-3996
    Keywords: chemiluminescent immunoassay ; acridinium ester ; fish ; salmon ; growth hormone ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: A highly sensitive and specific chemiluminescent immunoassay (CLIA) was developed for quantification of growth hormone (GH) in salmonid species. The CLIA for salmon GH was performed using the sandwich method with anti-GH IgG as the first antibody and chemiluminescent acridinium ester-labelled specific anti-GH F(ab′)2 as the second antibody. The measurable range of salmon GH in the CLIA was 39-1250 pg/mL using a short assay (1 day) protocol and 3.9-125 pg/mL in a longer (2-day) assay. The dilution curve in the CLIA of serum from masu salmon (Oncorhynchus masou) was parallel to the standard curve of recombinant chum salmon (Oncorhynchus keta) GH. Seasonal changes of serum GH levels were measured in 1 year-old masu salmon cultivated in a pond from March to November. Their serum GH levels increased during smoltification from March to April, achieved a maximum level of 21 ng/mL in August, and then declined gradually to 11 ng/mL in October. © 1997 John Wiley & Sons, Ltd.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    A new highly sensitive chemiluminescent assay of alkaline phosphatase using lucigenin and its application to enzyme immunoassay (1995)
    New York : Wiley-Blackwell
    Journal of Bioluminescence and Chemiluminescence 10 (1995), S. 1-7 
    Details
    ISSN: 0884-3996
    Keywords: chemiluminescence ; alkaline phosphatase ; enzyme immunoassay ; lucigenin ; chemiluminescent enzyme immunoassay ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: The chemiluminescent reaction of lucigenin with various reducing sugars and reducing compounds has been studied. It was found that dihydroxyacetone gave the most intense chemiluminescence (CL). We have developed highly sensitive chemiluminescent methods for alkaline phosphatase (ALP) based on the production of dihydroxyacetone using NADP+ or glycerol-3-phosphate as substrate. The detection limits for ALP using each substrate were 1.25 × 10-19 mol/assay and 2.5 × 10-19 mol/assay, and the coefficient of variation (n = 7) was 2.8% and 3.7%, respectively. We have also applied the method using NADP+ as substrate in enzyme immunoassays (EIA) for cholecystokinin (CCK) and human chorionic gonadotropin (hCG). CCK-8 (octapeptide sulphated form of a carboxy terminal fragment of CCK) concentrations released from alimentary canal of rat were assayed using the chemiluminescent EIA (CLEIA) and a fluorimtric EIA (ALP label). The correlation between CCK-8 values obtained by these methods was y = 1.04x + 18.21, r = 0.946, n = 28. hCG values in serum and in urine were measured. The correlation between hCG values in serum samples obtained using the CLEIA and a time-resolved fluoroimmunoassay (TR-FIA), and in urine samples obtained using the CLEIA and the fluorimetric EIA using ALP were satisfactory. The correlations were y = 1.00x - 0.04, r = 0.997 (n = 51) and y = 1.00x - 0.03, r = 0.999 (n = 10), respectively.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bio.1170100102
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  • 7
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    What's new, pussycat? On talking to babies and animals (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burnham, Denis -- Kitamura, Christine -- Vollmer-Conna, Ute -- New York, N.Y. -- Science. 2002 May 24;296(5572):1435.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MARCS Auditory Laboratories, University of Western Sydney, Post Office Box 1797, Sydney, 1797, Australia. d.burnham@uws.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12029126" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; *Animals, Domestic ; Cats ; Dogs ; Humans ; Infant ; *Mother-Child Relations ; *Mothers ; *Phonetics ; *Speech ; *Speech Acoustics ; Verbal Behavior
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 8
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    Activity-dependent transfer of brain-derived neurotrophic factor to postsynaptic neurons (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-03-27
    Description: Neurotrophins such as brain-derived neurotrophic factor (BDNF) are thought to be transferred from post- to presynaptic neurons and to be involved in the formation and plasticity of neural circuits. However, direct evidence for a transneuronal transfer of BDNF and its relation to neuronal activity remains elusive. We simultaneously injected complementary DNAs of green fluorescent protein (GFP)-tagged BDNF and red fluorescence protein into the nucleus of single neurons and visualized expression, localization, and transport of BDNF in living neurons. Fluorescent puncta representing BDNF moved in axons in the anterograde direction, though some moved retrogradely, and transferred to postsynaptic neurons in an activity-dependent manner.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kohara, K -- Kitamura, A -- Morishima, M -- Tsumoto, T -- New York, N.Y. -- Science. 2001 Mar 23;291(5512):2419-23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neurophysiology, Biomedical Research Center, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871 Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11264540" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Antibodies ; *Axonal Transport ; Axons/*metabolism ; Brain-Derived Neurotrophic Factor/genetics/*metabolism ; Cell Nucleus/metabolism ; Cells, Cultured ; DNA, Complementary ; Dendrites/metabolism ; Immunohistochemistry ; Luminescent Proteins/metabolism ; Mice ; Mice, Inbred C57BL ; Microscopy, Fluorescence ; Microtubule-Associated Proteins/analysis/immunology ; Neurites/metabolism ; Neuronal Plasticity ; Neurons/drug effects/*metabolism ; Plasmids ; Protein Transport ; Recombinant Fusion Proteins/metabolism ; Synapses/*metabolism ; Tetrodotoxin/pharmacology ; Visual Cortex/cytology ; tau Proteins/analysis/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 9
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    Draxin, a repulsive guidance protein for spinal cord and forebrain commissures (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-01-20
    Description: Axon guidance proteins are critical for the correct wiring of the nervous system during development. Several axon guidance cues and their family members have been well characterized. More unidentified axon guidance cues are assumed to participate in the formation of the extremely complex nervous system. We identified a secreted protein, draxin, that shares no homology with known guidance cues. Draxin inhibited or repelled neurite outgrowth from dorsal spinal cord and cortical explants in vitro. Ectopically expressed draxin inhibited growth or caused misrouting of chick spinal cord commissural axons in vivo. draxin knockout mice showed defasciculation of spinal cord commissural axons and absence of all forebrain commissures. Thus, draxin is a previously unknown chemorepulsive axon guidance molecule required for the development of spinal cord and forebrain commissures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Islam, Shahidul M -- Shinmyo, Yohei -- Okafuji, Tatsuya -- Su, Yuhong -- Naser, Iftekhar Bin -- Ahmed, Giasuddin -- Zhang, Sanbing -- Chen, Sandy -- Ohta, Kunimasa -- Kiyonari, Hiroshi -- Abe, Takaya -- Tanaka, Satomi -- Nishinakamura, Ryuichi -- Terashima, Toshio -- Kitamura, Toshio -- Tanaka, Hideaki -- New York, N.Y. -- Science. 2009 Jan 16;323(5912):388-93. doi: 10.1126/science.1165187.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Developmental Neurobiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19150847" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Axons/*physiology ; COS Cells ; Cercopithecus aethiops ; Chick Embryo ; Coculture Techniques ; Corpus Callosum/embryology/metabolism ; Electroporation ; Growth Cones/metabolism/physiology ; Intercellular Signaling Peptides and ; Proteins/chemistry/genetics/metabolism/*physiology ; Mice ; Mice, Knockout ; Molecular Sequence Data ; Neurites/metabolism/*physiology ; Neurogenesis ; Neuroglia/metabolism ; Prosencephalon/abnormalities/*embryology/metabolism ; Recombinant Proteins/metabolism ; Spinal Cord/*embryology/metabolism ; Tissue Culture Techniques
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 10
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    Locally synchronized synaptic inputs (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-01-24
    Description: Synaptic inputs on dendrites are nonlinearly converted to action potential outputs, yet the spatiotemporal patterns of dendritic activation remain to be elucidated at single-synapse resolution. In rodents, we optically imaged synaptic activities from hundreds of dendritic spines in hippocampal and neocortical pyramidal neurons ex vivo and in vivo. Adjacent spines were frequently synchronized in spontaneously active networks, thereby forming dendritic foci that received locally convergent inputs from presynaptic cell assemblies. This precise subcellular geometry manifested itself during N-methyl-D-aspartate receptor-dependent circuit remodeling. Thus, clustered synaptic plasticity is innately programmed to compartmentalize correlated inputs along dendrites and may reify nonlinear synaptic integration.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahashi, Naoya -- Kitamura, Kazuo -- Matsuo, Naoki -- Mayford, Mark -- Kano, Masanobu -- Matsuki, Norio -- Ikegaya, Yuji -- New York, N.Y. -- Science. 2012 Jan 20;335(6066):353-6. doi: 10.1126/science.1210362.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22267814" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; CA3 Region, Hippocampal/cytology/physiology ; Calcium/metabolism ; Dendritic Spines/*physiology/ultrastructure ; Excitatory Postsynaptic Potentials ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Nerve Net/*physiology ; Neuronal Plasticity ; Organ Culture Techniques ; Patch-Clamp Techniques ; Pyramidal Cells/*physiology ; Rats ; Rats, Wistar ; Receptors, N-Methyl-D-Aspartate/antagonists & inhibitors/metabolism ; Somatosensory Cortex/cytology/physiology ; Synapses/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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