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  1. Book ; Online: Quest for Good Money

    Kitamura, Yukinobu

    Past, Present and Future

    (Hitotsubashi University IER Economic Research Series)

    2022  

    Series title Hitotsubashi University IER Economic Research Series
    Keywords Macroeconomics ; Financial services industry ; Money ; Cryptocurrency ; Digital currency ; Central bank ; Denomination ; Number theory
    Language 0|e
    Size 1 electronic resource (151 pages)
    Publisher Springer Nature
    Publishing place Singapore
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021620916
    ISBN 9789811955914 ; 9811955913
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Book ; Online: Quest for Good Money

    Kitamura, Yukinobu

    Past, Present and Future

    (Hitotsubashi University IER Economic Research Series ; 48)

    2022  

    Author's details by Yukinobu Kitamura
    Series title Hitotsubashi University IER Economic Research Series ; 48
    Keywords Macroeconomics ; Financial services industry
    Subject code 339
    Language English
    Size 1 Online-Ressource (XV, 151 p. 25 illus., 12 illus. in color)
    Edition 1st ed. 2022
    Publisher Springer Nature Singapore ; Imprint: Springer
    Publishing place Singapore
    Document type Book ; Online
    HBZ-ID HT021626502
    ISBN 978-981-19-5591-4 ; 9789811955907 ; 9789811955921 ; 9789811955938 ; 981-19-5591-3 ; 9811955905 ; 9811955921 ; 981195593X
    DOI 10.1007/978-981-19-5591-4
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  3. Article ; Online: Scan-Free Absorbance Spectral Imaging A(x, y, λ) of Single Live Algal Cells for Quantifying Absorbance of Cell Suspensions.

    Isono, Takumi / Yamashita, Kyohei / Momose, Daisuke / Kobayashi, Hiroki / Kitamura, Masashi / Nishiyama, Yusuke / Hosoya, Takahiro / Kanda, Hiroaki / Kudo, Ayane / Okada, Norihide / Yagi, Takafumi / Nakata, Kazuaki / Mineki, Shigeru / Tokunaga, Eiji

    PloS one

    2015  Volume 10, Issue 6, Page(s) e0128002

    Abstract: Label-free, non-invasive, rapid absorbance spectral imaging A(x,y,λ) microscopy of single live ... free acquisition of three-dimensional information of A(x,y,λ) was realized. The space-resolved ...

    Abstract Label-free, non-invasive, rapid absorbance spectral imaging A(x,y,λ) microscopy of single live cells at 1.2 μm × 1.2 μm resolution with an NA = 0.85 objective was developed and applied to unicellular green algae Chlamydomonas reinhardtii. By introducing the fiber assembly to rearrange a two-dimensional image to the one-dimensional array to fit the slit of an imaging spectrograph equipped with a CCD detector, scan-free acquisition of three-dimensional information of A(x,y,λ) was realized. The space-resolved absorbance spectra of the eyespot, an orange organelle about 1 μm, were extracted from the green-color background in a chlorophyll-rich single live cell absorbance image. Characteristic absorbance change in the cell suspension after hydrogen photoproduction in C. reinhardtii was investigated to find a single 715-nm absorption peak was locally distributed within single cells. The formula to calculate the absorbance of cell suspensions from that of single cells was presented to obtain a quantitative, parameter-free agreement with the experiment. It is quantitatively shown that the average number of chlorophylls per cell is significantly underestimated when it is evaluated from the absorbance of the cell suspensions due to the package effect.
    MeSH term(s) Chlamydomonas reinhardtii/chemistry ; Chlorophyll/chemistry ; Chlorophyta/chemistry ; Microspectrophotometry/methods ; Suspensions/chemistry
    Chemical Substances Suspensions ; Chlorophyll (1406-65-1)
    Language English
    Publishing date 2015
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0128002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Neuropeptide Y functions as a facilitator of GDNF-induced budding of the Wolffian duct.

    Choi, Yohan / Tee, James B / Gallegos, Thomas F / Shah, Mita M / Oishi, Hideto / Sakurai, Hiroyuki / Kitamura, Shinji / Wu, Wei / Bush, Kevin T / Nigam, Sanjay K

    Development (Cambridge, England)

    2009  Volume 136, Issue 24, Page(s) 4213–4224

    Abstract: ... as well as neuropeptide Y (NPY). By using ANOVA with pattern matching, NPY was also found to correlate ...

    Abstract Ureteric bud (UB) emergence from the Wolffian duct (WD), the initiating step in metanephric kidney morphogenesis, is dependent on GDNF; however, GDNF by itself is generally insufficient to induce robust budding of the isolated WD in culture. Thus, additional factors, presumably peptides or polypeptide growth factors, might be involved. Microarray data from in vivo budding and non-budding conditions were analyzed using non-negative matrix factorization followed by gene ontology filtering and network analysis to identify sets of genes that are highly regulated during budding. These included the GDNF co-receptors GFRalpha1 and RET, as well as neuropeptide Y (NPY). By using ANOVA with pattern matching, NPY was also found to correlate most significantly to the budded condition with a high degree of connectedness to genes with developmental roles. Exogenous NPY [as well as its homolog, peptide YY (PYY)] augmented GDNF-dependent budding in the isolated WD culture; conversely, inhibition of NPY signaling or perturbation of NPY expression inhibited budding, confirming that NPY facilitates this process. NPY was also found to reverse the decreased budding, the downregulation of RET expression, the mislocalization of GFRalpha1, and the inhibition of AKT phosphorylation that resulted from the addition of BMP4 to the isolated WD cultures, suggesting that NPY acts through the budding pathway and is reciprocally regulated by GDNF and BMP4. Thus, the outgrowth of the UB from the WD might result from a combination of the upregulation of the GDNF receptors together with genes that support GDNF signaling in a feed-forward loop and/or counteraction of the inhibitory pathway regulated by BMP4.
    MeSH term(s) Animals ; Bone Morphogenetic Protein 4/physiology ; Cells, Cultured ; Female ; Gene Expression Regulation, Developmental ; Glial Cell Line-Derived Neurotrophic Factor Receptors/physiology ; Morphogenesis ; Neuropeptide Y/physiology ; Oligonucleotide Array Sequence Analysis ; Proto-Oncogene Proteins c-ret/physiology ; Rats ; Rats, Sprague-Dawley ; Signal Transduction ; Up-Regulation ; Wolffian Ducts/embryology ; Wolffian Ducts/physiology
    Chemical Substances Bone Morphogenetic Protein 4 ; Glial Cell Line-Derived Neurotrophic Factor Receptors ; Neuropeptide Y ; Proto-Oncogene Proteins c-ret (EC 2.7.10.1)
    Language English
    Publishing date 2009-11-23
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 90607-4
    ISSN 1477-9129 ; 0950-1991
    ISSN (online) 1477-9129
    ISSN 0950-1991
    DOI 10.1242/dev.037580
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Extracardiac total cavopulmonary connection using a Y-shaped graft.

    Okano, Takahisa / Yamagishi, Masaaki / Shuntoh, Keisuke / Yamada, Yoshiaki / Hayashida, Kyoko / Shinkawa, Takeshi / Kitamura, Nobuo

    The Annals of thoracic surgery

    2002  Volume 74, Issue 6, Page(s) 2195–2197

    Abstract: ... who underwent a successful extracardiac total cavopulmonary connection using a Y-shaped bifurcated graft ...

    Abstract We report on 17-year-old Fontan candidate with a severely distorted central pulmonary artery (PA) who underwent a successful extracardiac total cavopulmonary connection using a Y-shaped bifurcated graft. A nonanatomic pathway from the inferior vena cava to the left PA was constructed and positioned anterior to the ascending aorta. The other arm was used as a conduit between the inferior vena cava and the right PA. All procedures were performed under temporary venous bypass without cardiopulmonary bypass.
    MeSH term(s) Adolescent ; Blood Vessel Prosthesis ; Fontan Procedure ; Heart Defects, Congenital/surgery ; Humans ; Male ; Pulmonary Artery/abnormalities ; Pulmonary Artery/surgery ; Vena Cava, Inferior/surgery
    Language English
    Publishing date 2002-08-23
    Publishing country Netherlands
    Document type Case Reports ; Journal Article
    ZDB-ID 211007-6
    ISSN 1552-6259 ; 0003-4975
    ISSN (online) 1552-6259
    ISSN 0003-4975
    DOI 10.1016/s0003-4975(02)03978-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Innervation and functional changes in mesenteric perivascular calcitonin gene-related peptide- and neuropeptide Y-containing nerves following topical phenol treatment.

    Hobara, N / Goda, M / Kitamura, Y / Takayama, F / Kawasaki, H

    Neuroscience

    2006  Volume 141, Issue 2, Page(s) 1087–1099

    Abstract: ... calcitonin gene-related peptide- and adrenergic neuropeptide Y-containing nerves after topical treatment with phenol ... of calcitonin gene-related peptide-like immunoreactivity containing fibers and neuropeptide Y-like immunoreactivity containing fibers ... of calcitonin gene-related peptide- and neuropeptide Y-like immunoreactivity fibers than in phenol-treated rats and restored ...

    Abstract We have previously shown that age-related reduction of innervation and function in mesenteric perivascular calcitonin gene-related peptide-containing vasodilator nerves takes place in spontaneously hypertensive rats. The present study was performed to investigate innervation and functional changes in perivascular calcitonin gene-related peptide- and adrenergic neuropeptide Y-containing nerves after topical treatment with phenol, which damages nerve fibers, around the rat superior mesenteric artery. Under pentobarbital-Na anesthesia, 8-week-old Wistar rats underwent in vivo topical application of phenol (10% phenol in 90% ethanol) or saline (sham rats) to the superior mesenteric artery proximal to the bifurcation of the abdominal aorta. After the treatment, the animals were subjected to immunohistochemistry of the 3rd branch of small arteries proximal to the intestine and to vascular responsiveness testing on day 3 through day 14. The innervation levels of calcitonin gene-related peptide-like immunoreactivity containing fibers and neuropeptide Y-like immunoreactivity containing fibers were markedly reduced on day 3 to day 14 and on day 5 to day 14 after the treatment, compared with those in sham-operated rats, respectively. In perfused mesenteric vascular beds isolated from phenol-treated rats, adrenergic nerve-mediated vasoconstriction and calcitonin gene-related peptide nerve-mediated vasodilation in response to periarterial nerve stimulation (2-12 Hz) were significantly decreased on day 3 and day 7. Neurogenic release of norepinephrine in phenol-treated rats on day 7 was significantly smaller that that in sham-operated rats. Nerve growth factor content in the mesenteric arteries of phenol-treated rats was significantly lower than that in sham-operated rats. Administration of nerve growth factor using osmotic mini-pumps for 7 days after the phenol treatment resulted in greater density of calcitonin gene-related peptide- and neuropeptide Y-like immunoreactivity fibers than in phenol-treated rats and restored decreased vascular responses to periarterial nerve stimulation. These results suggest that topical phenol-treatment of the mesenteric artery effectively induces functional denervation of perivascular nerves, which can be prevented or reversed by nerve growth factor treatment.
    MeSH term(s) Administration, Topical ; Analysis of Variance ; Animals ; Anti-Infective Agents, Local/administration & dosage ; Blood Pressure/drug effects ; Calcitonin Gene-Related Peptide/metabolism ; Dose-Response Relationship, Drug ; Drug Interactions ; Enzyme-Linked Immunosorbent Assay/methods ; Immunohistochemistry/methods ; Mesenteric Arteries/innervation ; Nerve Fibers/drug effects ; Nerve Fibers/metabolism ; Nerve Growth Factor/administration & dosage ; Neuropeptide Y/metabolism ; Norepinephrine/pharmacology ; Phenol/administration & dosage ; Rats ; Rats, Wistar ; Time Factors ; Vasoconstriction/drug effects
    Chemical Substances Anti-Infective Agents, Local ; Neuropeptide Y ; Phenol (339NCG44TV) ; Nerve Growth Factor (9061-61-4) ; Calcitonin Gene-Related Peptide (JHB2QIZ69Z) ; Norepinephrine (X4W3ENH1CV)
    Language English
    Publishing date 2006-05-18
    Publishing country United States
    Document type Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 196739-3
    ISSN 1873-7544 ; 0306-4522
    ISSN (online) 1873-7544
    ISSN 0306-4522
    DOI 10.1016/j.neuroscience.2006.04.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Scan-Free Absorbance Spectral Imaging A(x, y, λ) of Single Live Algal Cells for Quantifying Absorbance of Cell Suspensions.

    Takumi Isono / Kyohei Yamashita / Daisuke Momose / Hiroki Kobayashi / Masashi Kitamura / Yusuke Nishiyama / Takahiro Hosoya / Hiroaki Kanda / Ayane Kudo / Norihide Okada / Takafumi Yagi / Kazuaki Nakata / Shigeru Mineki / Eiji Tokunaga

    PLoS ONE, Vol 10, Iss 6, p e

    2015  Volume 0128002

    Abstract: Label-free, non-invasive, rapid absorbance spectral imaging A(x,y,λ) microscopy of single live ... free acquisition of three-dimensional information of A(x,y,λ) was realized. The space-resolved ...

    Abstract Label-free, non-invasive, rapid absorbance spectral imaging A(x,y,λ) microscopy of single live cells at 1.2 μm × 1.2 μm resolution with an NA = 0.85 objective was developed and applied to unicellular green algae Chlamydomonas reinhardtii. By introducing the fiber assembly to rearrange a two-dimensional image to the one-dimensional array to fit the slit of an imaging spectrograph equipped with a CCD detector, scan-free acquisition of three-dimensional information of A(x,y,λ) was realized. The space-resolved absorbance spectra of the eyespot, an orange organelle about 1 μm, were extracted from the green-color background in a chlorophyll-rich single live cell absorbance image. Characteristic absorbance change in the cell suspension after hydrogen photoproduction in C. reinhardtii was investigated to find a single 715-nm absorption peak was locally distributed within single cells. The formula to calculate the absorbance of cell suspensions from that of single cells was presented to obtain a quantitative, parameter-free agreement with the experiment. It is quantitatively shown that the average number of chlorophylls per cell is significantly underestimated when it is evaluated from the absorbance of the cell suspensions due to the package effect.
    Keywords Medicine ; R ; Science ; Q
    Subject code 571
    Language English
    Publishing date 2015-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Epigenetic priming in the male germline.

    Kitamura, Yuka / Namekawa, Satoshi H

    Current opinion in genetics & development

    2024  Volume 86, Page(s) 102190

    Abstract: Epigenetic priming presets chromatin states that allow the rapid induction of gene expression programs in response to differentiation cues. In the germline, it provides the blueprint for sexually dimorphic unidirectional differentiation. In this review, ... ...

    Abstract Epigenetic priming presets chromatin states that allow the rapid induction of gene expression programs in response to differentiation cues. In the germline, it provides the blueprint for sexually dimorphic unidirectional differentiation. In this review, we focus on epigenetic priming in the mammalian male germline and discuss how cellular memories are regulated and inherited to the next generation. During spermatogenesis, epigenetic priming predetermines cellular memories that ensure the lifelong maintenance of spermatogonial stem cells and their subsequent commitment to meiosis and to the production of haploid sperm. The paternal chromatin state is also essential for the recovery of totipotency after fertilization and contributes to paternal epigenetic inheritance. Thus, epigenetic priming establishes stable but reversible chromatin states during spermatogenesis and enables epigenetic inheritance and reprogramming in the next generation.
    Language English
    Publishing date 2024-04-11
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1077312-5
    ISSN 1879-0380 ; 0959-437X
    ISSN (online) 1879-0380
    ISSN 0959-437X
    DOI 10.1016/j.gde.2024.102190
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Construction of block-shuffled libraries of DNA for evolutionary protein engineering: Y-ligation-based block shuffling.

    Kitamura, Koichiro / Kinoshita, Yasunori / Narasaki, Shinsuke / Nemoto, Naoto / Husimi, Yuzuru / Nishigaki, Koichi

    Protein engineering

    2002  Volume 15, Issue 10, Page(s) 843–853

    Abstract: ... A cycle of processes for producing combinatorial diversity was devised and designated Y-ligation-based ...

    Abstract Evolutionary protein engineering is now proceeding to a new stage in which novel technologies, besides the conventional point mutations, to generate a library of proteins, are required. In this context, a novel method for shuffling and rearranging DNA blocks (leading to protein libraries) is reported. A cycle of processes for producing combinatorial diversity was devised and designated Y-ligation-based block shuffling (YLBS). Methodological refinement was made by applying it to the shuffling of module-sized and amino acid-sized blocks. Running three cycles of YLBS with module-sized GFP blocks resulted in a high diversity of an eight-block shuffled library. Partial shuffling of the central four blocks of GFP was performed to obtain in-effect shuffled protein, resulting in an intact arrangement. Shuffling of amino acid monomer-sized blocks by YLBS was also performed and a diversity of more than 10(10) shuffled molecules was attained. The deletion problems encountered during these experiments were shown to be solved by additional measures which tame type IIS restriction enzymes. The frequency of appearance of each block was skewed but was within a permissible range. Therefore, YLBS is the first general method for generating a huge diversity of shuffled proteins, recombining domains, exons and modules with ease.
    MeSH term(s) Combinatorial Chemistry Techniques/methods ; DNA/chemistry ; DNA/genetics ; DNA Primers/genetics ; Deoxyribonucleases, Type II Site-Specific/metabolism ; Electrophoresis, Polyacrylamide Gel ; Gene Library ; Green Fluorescent Proteins ; Luminescent Proteins/chemistry ; Luminescent Proteins/genetics ; Nucleic Acid Conformation ; Nucleic Acid Denaturation ; Oligonucleotides/chemistry ; Oligonucleotides/genetics ; Point Mutation/genetics ; Polymerase Chain Reaction ; Protein Engineering/methods ; RNA Ligase (ATP)/metabolism ; Recombinant Proteins/chemistry ; Recombinant Proteins/genetics ; Sequence Analysis, DNA ; Sequence Deletion/genetics ; Subtilisin/genetics
    Chemical Substances DNA Primers ; Luminescent Proteins ; Oligonucleotides ; Recombinant Proteins ; Green Fluorescent Proteins (147336-22-9) ; DNA (9007-49-2) ; Deoxyribonucleases, Type II Site-Specific (EC 3.1.21.4) ; Subtilisin (EC 3.4.21.62) ; RNA Ligase (ATP) (EC 6.5.1.3)
    Language English
    Publishing date 2002-10
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 56453-9
    ISSN 1460-213X ; 0269-2139
    ISSN (online) 1460-213X
    ISSN 0269-2139
    DOI 10.1093/protein/15.10.843
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Photoinduced magnetization in the organic-based magnet Mn(TCNE)(x)* y(CH2Cl2).

    Pejaković, Dusan A / Kitamura, Chitoshi / Miller, Joel S / Epstein, Arthur J

    Physical review letters

    2002  Volume 88, Issue 5, Page(s) 57202

    Abstract: ... Upon optical excitation in the blue region of spectrum, Mn(tetracyanoethylene)(x)*y(CH2Cl2) (x approximately 2 ... y is approximately 0.8) exhibits increased magnetic susceptibility at temperatures as high as 75 K ...

    Abstract Photoinduced magnetization in a magnet based on organic species is reported for the first time. Upon optical excitation in the blue region of spectrum, Mn(tetracyanoethylene)(x)*y(CH2Cl2) (x approximately 2, y is approximately 0.8) exhibits increased magnetic susceptibility at temperatures as high as 75 K, accompanied with photoinduced absorption in the visible and infrared spectral regions. These effects are partially reversible by lower energy visible light and fully reversible by thermal treatment. The results suggest trapping of the photoexcited charge in a metastable state with enhanced exchange interaction.
    Language English
    Publishing date 2002-02-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.88.057202
    Database MEDical Literature Analysis and Retrieval System OnLINE

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