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  • Electronic structure and strongly correlated systems  (26)
  • Spacecraft Design, Testing and Performance  (20)
  • Mice, Inbred C57BL  (10)
  • 1
    Publication Date: 2013-05-16
    Description: Author(s): N. H. Jo, K. J. Lee, C. M. Kim, K. Okamoto, A. Kimura, K. Miyamoto, T. Okuda, Y. K. Kim, Z. Lee, T. Onimaru, T. Takabatake, and M. H. Jung We report the doping effect of a magnetic Fe ion in Bi 2 Te 3 , that is, Bi 2− x Fe x Te 3 ( x = 0, 0.08, 0.15, 0.2, 0.25, and 0.3). The paramagnetic magnetization data reveal that the Fe ions are doped in the divalent form. The Fe 2+ state substituted for Bi 3+ can create hole donors, which compensate for the e... [Phys. Rev. B 87, 201105] Published Wed May 15, 2013
    Keywords: Electronic structure and strongly correlated systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 2
    Publication Date: 2015-09-16
    Description: Author(s): M. D. Watson, T. K. Kim, A. A. Haghighirad, S. F. Blake, N. R. Davies, M. Hoesch, T. Wolf, and A. I. Coldea We report a high-resolution angle-resolved photoemission spectroscopy study of the evolution of the electronic structure of FeSe 1 − x S x single crystals. Isovalent S substitution onto the Se site constitutes a chemical pressure which subtly modifies the electronic structure of FeSe at high temperatures… [Phys. Rev. B 92, 121108(R)] Published Tue Sep 15, 2015
    Keywords: Electronic structure and strongly correlated systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 3
    Publication Date: 2015-04-08
    Description: Author(s): M. D. Watson, T. K. Kim, A. A. Haghighirad, N. R. Davies, A. McCollam, A. Narayanan, S. F. Blake, Y. L. Chen, S. Ghannadzadeh, A. J. Schofield, M. Hoesch, C. Meingast, T. Wolf, and A. I. Coldea Improvements in experimental resolution allow this group to elucidate how the electronic nematic transition evolves in FeSe. They observe the changing Fermi surface, the position of the lowest energy electronic excitations, as well as the propensity towards nematic order and its manifestation under strain. [Phys. Rev. B 91, 155106] Published Tue Apr 07, 2015
    Keywords: Electronic structure and strongly correlated systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 4
    Publication Date: 2001-06-02
    Description: Glucose homeostasis depends on insulin responsiveness in target tissues, most importantly, muscle and liver. The critical initial steps in insulin action include phosphorylation of scaffolding proteins and activation of phosphatidylinositol 3-kinase. These early events lead to activation of the serine-threonine protein kinase Akt, also known as protein kinase B. We show that mice deficient in Akt2 are impaired in the ability of insulin to lower blood glucose because of defects in the action of the hormone on liver and skeletal muscle. These data establish Akt2 as an essential gene in the maintenance of normal glucose homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cho, H -- Mu, J -- Kim, J K -- Thorvaldsen, J L -- Chu, Q -- Crenshaw, E B 3rd -- Kaestner, K H -- Bartolomei, M S -- Shulman, G I -- Birnbaum, M J -- GM07229/GM/NIGMS NIH HHS/ -- P30 19525/PHS HHS/ -- P30 DK50306/DK/NIDDK NIH HHS/ -- R01 DK040936/DK/NIDDK NIH HHS/ -- R01 DK56886/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2001 Jun 1;292(5522):1728-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11387480" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/metabolism ; Deoxyglucose/metabolism ; Diabetes Mellitus, Type 2/*metabolism ; Female ; Gene Targeting ; Glucose/*metabolism ; Glucose Clamp Technique ; Glucose Tolerance Test ; Homeostasis ; Insulin/administration & dosage/blood/*metabolism ; *Insulin Resistance/genetics/physiology ; Islets of Langerhans/cytology/physiology ; Liver/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Muscle, Skeletal/enzymology/metabolism ; *Protein-Serine-Threonine Kinases ; Proto-Oncogene Proteins/*genetics/*metabolism ; Proto-Oncogene Proteins c-akt ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2007-11-03
    Description: During pregnancy, maternal pancreatic islets grow to match dynamic physiological demands, but the mechanisms regulating adaptive islet growth in this setting are poorly understood. Here we show that menin, a protein previously characterized as an endocrine tumor suppressor and transcriptional regulator, controls islet growth in pregnant mice. Pregnancy stimulated proliferation of maternal pancreatic islet beta-cells that was accompanied by reduced islet levels of menin and its targets. Transgenic expression of menin in maternal beta-cells prevented islet expansion and led to hyperglycemia and impaired glucose tolerance, hallmark features of gestational diabetes. Prolactin, a hormonal regulator of pregnancy, repressed islet menin levels and stimulated beta-cell proliferation. These results expand our understanding of mechanisms underlying diabetes pathogenesis and reveal potential targets for therapy in diabetes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karnik, Satyajit K -- Chen, Hainan -- McLean, Graeme W -- Heit, Jeremy J -- Gu, Xueying -- Zhang, Andrew Y -- Fontaine, Magali -- Yen, Michael H -- Kim, Seung K -- T32DK007217-32/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2007 Nov 2;318(5851):806-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Biology, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17975067" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Proliferation ; Diabetes, Gestational/*etiology/metabolism ; Female ; Humans ; Insulin/metabolism ; Insulin-Secreting Cells/*physiology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Obesity/metabolism ; Pregnancy ; Prolactin/metabolism ; Proto-Oncogene Proteins/*physiology ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 2007-07-07
    Description: Hepatocellular carcinoma (HCC), the most common liver cancer, occurs mainly in men. Similar gender disparity is seen in mice given a chemical carcinogen, diethylnitrosamine (DEN). DEN administration caused greater increases in serum interleukin-6 (IL-6) concentration in males than it did in females. Furthermore, ablation of IL-6 abolished the gender differences in hepatocarcinogenesis in mice. DEN exposure promoted production of IL-6 in Kupffer cells (KCs) in a manner dependent on the Toll-like receptor adaptor protein MyD88, ablation of which also protected male mice from DEN-induced hepatocarcinogenesis. Estrogen inhibited secretion of IL-6 from KCs exposed to necrotic hepatocytes and reduced circulating concentrations of IL-6 in DEN-treated male mice. We propose that estrogen-mediated inhibition of IL-6 production by KCs reduces liver cancer risk in females, and these findings may be used to prevent HCC in males.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Naugler, Willscott E -- Sakurai, Toshiharu -- Kim, Sunhwa -- Maeda, Shin -- Kim, Kyounghyun -- Elsharkawy, Ahmed M -- Karin, Michael -- CA118165/CA/NCI NIH HHS/ -- DK007202/DK/NIDDK NIH HHS/ -- ES004151/ES/NIEHS NIH HHS/ -- ES006376/ES/NIEHS NIH HHS/ -- R01 CA118165/CA/NCI NIH HHS/ -- R01 ES006376/ES/NIEHS NIH HHS/ -- T32 CA121938/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2007 Jul 6;317(5834):121-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology and Cancer Center, University of California, San Diego, CA 93093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17615358" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carbon Tetrachloride/administration & dosage ; Diethylnitrosamine/administration & dosage/metabolism ; Estradiol/pharmacology ; Female ; Hepatocytes ; Interleukin-6/blood/genetics/*metabolism ; Kupffer Cells/*metabolism ; Liver/metabolism/pathology ; Liver Neoplasms, Experimental/chemically induced/immunology/*physiopathology ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Myeloid Differentiation Factor 88/*physiology ; Necrosis ; Ovariectomy ; RNA, Messenger/genetics/metabolism ; *Sex Characteristics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2006-12-16
    Description: Genetically matched pluripotent embryonic stem (ES) cells generated via nuclear transfer or parthenogenesis (pES cells) are a potential source of histocompatible cells and tissues for transplantation. After parthenogenetic activation of murine oocytes and interruption of meiosis I or II, we isolated and genotyped pES cells and characterized those that carried the full complement of major histocompatibility complex (MHC) antigens of the oocyte donor. Differentiated tissues from these pES cells engrafted in immunocompetent MHC-matched mouse recipients, demonstrating that selected pES cells can serve as a source of histocompatible tissues for transplantation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Kitai -- Lerou, Paul -- Yabuuchi, Akiko -- Lengerke, Claudia -- Ng, Kitwa -- West, Jason -- Kirby, Andrew -- Daly, Mark J -- Daley, George Q -- T32: HD07466/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2007 Jan 26;315(5811):482-6. Epub 2006 Dec 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Pediatric Hematology/Oncology, Children's Hospital Boston and Dana Farber Cancer Institute, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17170255" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cell Line ; Chromosome Segregation ; Embryonic Stem Cells/cytology/*immunology/physiology ; Female ; Genotype ; H-2 Antigens/*genetics/*immunology ; Heterozygote ; *Histocompatibility ; Histocompatibility Antigens Class II/genetics/immunology ; *Major Histocompatibility Complex ; Meiosis ; Mice ; Mice, Inbred C57BL ; Mice, Inbred CBA ; Oocytes/cytology/immunology ; *Parthenogenesis ; Pluripotent Stem Cells/cytology/*immunology/physiology ; Polymerase Chain Reaction ; Recombination, Genetic ; Stem Cell Transplantation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2012-09-01
    Description: The mammalian circadian clock involves a transcriptional feed back loop in which CLOCK and BMAL1 activate the Period and Cryptochrome genes, which then feedback and repress their own transcription. We have interrogated the transcriptional architecture of the circadian transcriptional regulatory loop on a genome scale in mouse liver and find a stereotyped, time-dependent pattern of transcription factor binding, RNA polymerase II (RNAPII) recruitment, RNA expression, and chromatin states. We find that the circadian transcriptional cycle of the clock consists of three distinct phases: a poised state, a coordinated de novo transcriptional activation state, and a repressed state. Only 22% of messenger RNA (mRNA) cycling genes are driven by de novo transcription, suggesting that both transcriptional and posttranscriptional mechanisms underlie the mammalian circadian clock. We also find that circadian modulation of RNAPII recruitment and chromatin remodeling occurs on a genome-wide scale far greater than that seen previously by gene expression profiling.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3694775/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3694775/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koike, Nobuya -- Yoo, Seung-Hee -- Huang, Hung-Chung -- Kumar, Vivek -- Lee, Choogon -- Kim, Tae-Kyung -- Takahashi, Joseph S -- F32 DA024556/DA/NIDA NIH HHS/ -- R01 NS053616/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Oct 19;338(6105):349-54. doi: 10.1126/science.1226339. Epub 2012 Aug 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, The University of Texas Southwestern Medical Center, Dallas, TX 75390-9111, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22936566" target="_blank"〉PubMed〈/a〉
    Keywords: ARNTL Transcription Factors/metabolism ; Animals ; CLOCK Proteins/metabolism ; Chromatin/*metabolism ; Chromatin Assembly and Disassembly/genetics ; Circadian Clocks/*genetics ; Cryptochromes/*genetics ; DNA, Intergenic ; Enhancer Elements, Genetic ; *Epigenesis, Genetic ; Gene Expression Profiling ; Genetic Loci ; Histones/metabolism ; Liver/metabolism/*physiology ; Male ; Mice ; Mice, Inbred C57BL ; Period Circadian Proteins/genetics ; RNA Polymerase II/metabolism ; RNA, Messenger/genetics ; *Transcription, Genetic ; *Transcriptional Activation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 2013-12-21
    Description: The inbred mouse C57BL/6J is the reference strain for genome sequence and for most behavioral and physiological phenotypes. However, the International Knockout Mouse Consortium uses an embryonic stem cell line derived from a related C57BL/6N substrain. We found that C57BL/6N has a lower acute and sensitized response to cocaine and methamphetamine. We mapped a single causative locus and identified a nonsynonymous mutation of serine to phenylalanine (S968F) in Cytoplasmic FMRP interacting protein 2 (Cyfip2) as the causative variant. The S968F mutation destabilizes CYFIP2, and deletion of the C57BL/6N mutant allele leads to acute and sensitized cocaine-response phenotypes. We propose that CYFIP2 is a key regulator of cocaine response in mammals and present a framework to use mouse substrains to identify previously unknown genes and alleles regulating behavior.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4500108/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4500108/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kumar, Vivek -- Kim, Kyungin -- Joseph, Chryshanthi -- Kourrich, Said -- Yoo, Seung-Hee -- Huang, Hung Chung -- Vitaterna, Martha H -- de Villena, Fernando Pardo-Manuel -- Churchill, Gary -- Bonci, Antonello -- Takahashi, Joseph S -- F32 DA024556/DA/NIDA NIH HHS/ -- F32DA024556/DA/NIDA NIH HHS/ -- U01 MH061915/MH/NIMH NIH HHS/ -- U01MH61915/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Dec 20;342(6165):1508-12. doi: 10.1126/science.1245503.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390-9111, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24357318" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution ; Animals ; Central Nervous System Stimulants/administration & dosage ; Cocaine/*administration & dosage ; Cocaine-Related Disorders/*genetics/*psychology ; *Drug-Seeking Behavior ; Methamphetamine/administration & dosage ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Motor Activity/drug effects ; Mutation ; Nerve Tissue Proteins/genetics/*physiology ; Phenylalanine/genetics ; Polymorphism, Single Nucleotide ; Psychomotor Performance/drug effects ; Quantitative Trait Loci ; Serine/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 2013-10-29
    Description: Integrins have a critical role in thrombosis and haemostasis. Antagonists of the platelet integrin alphaIIbbeta3 are potent anti-thrombotic drugs, but also have the life-threatening adverse effect of causing bleeding. It is therefore desirable to develop new antagonists that do not cause bleeding. Integrins transmit signals bidirectionally. Inside-out signalling activates integrins through a talin-dependent mechanism. Integrin ligation mediates thrombus formation and outside-in signalling, which requires Galpha13 and greatly expands thrombi. Here we show that Galpha13 and talin bind to mutually exclusive but distinct sites within the integrin beta3 cytoplasmic domain in opposing waves. The first talin-binding wave mediates inside-out signalling and also ligand-induced integrin activation, but is not required for outside-in signalling. Integrin ligation induces transient talin dissociation and Galpha13 binding to an EXE motif (in which X denotes any residue), which selectively mediates outside-in signalling and platelet spreading. The second talin-binding wave is associated with clot retraction. An EXE-motif-based inhibitor of Galpha13-integrin interaction selectively abolishes outside-in signalling without affecting integrin ligation, and suppresses occlusive arterial thrombosis without affecting bleeding time. Thus, we have discovered a new mechanism for the directional switch of integrin signalling and, on the basis of this mechanism, designed a potent new anti-thrombotic drug that does not cause bleeding.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3823815/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3823815/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shen, Bo -- Zhao, Xiaojuan -- O'Brien, Kelly A -- Stojanovic-Terpo, Aleksandra -- Delaney, M Keegan -- Kim, Kyungho -- Cho, Jaehyung -- Lam, Stephen C-T -- Du, Xiaoping -- HL062350/HL/NHLBI NIH HHS/ -- HL080264/HL/NHLBI NIH HHS/ -- HL109439/HL/NHLBI NIH HHS/ -- R01 HL080264/HL/NHLBI NIH HHS/ -- R01 HL109439/HL/NHLBI NIH HHS/ -- T32 HL007829/HL/NHLBI NIH HHS/ -- England -- Nature. 2013 Nov 7;503(7474):131-5. doi: 10.1038/nature12613. Epub 2013 Oct 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Illinois at Chicago, 835 South Wolcott Avenue, Chicago, Illinois 60612, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24162846" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Antithrombins/adverse effects/*pharmacology/therapeutic use ; Binding Sites ; Bleeding Time ; *Cell Polarity ; Cytoplasm/metabolism ; GTP-Binding Protein alpha Subunits, G12-G13/metabolism ; Hemorrhage/chemically induced ; Humans ; Integrin beta3/chemistry/genetics/metabolism ; Integrins/chemistry/deficiency/genetics/*metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Platelet Glycoprotein GPIIb-IIIa Complex/metabolism ; Protein Binding ; Protein Structure, Tertiary ; Signal Transduction/*drug effects ; Talin/metabolism ; Thrombosis/*drug therapy/metabolism/pathology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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