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  • Polymer and Materials Science  (21)
  • Gene Expression Regulation  (5)
  • 1
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    Biomedicine. Do G quartets orchestrate fragile X pathology? (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-12-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moine, H -- Mandel, J L -- New York, N.Y. -- Science. 2001 Dec 21;294(5551):2487-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉UPR9002 CNRS, 67084 Strasbourg Cedex, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11752559" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Brain/metabolism ; Crystallography, X-Ray ; Fragile X Mental Retardation Protein ; Fragile X Syndrome/genetics/*metabolism ; Gene Expression Regulation ; Humans ; Mice ; Nerve Tissue Proteins/chemistry/genetics/*metabolism ; Nucleic Acid Conformation ; Oligonucleotide Array Sequence Analysis ; Protein Biosynthesis ; Protein Structure, Tertiary ; RNA, Messenger/*chemistry/genetics/*metabolism ; *RNA-Binding Proteins ; Synapses/physiology ; Untranslated Regions
    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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  • 2
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    Biomedicine. Huntingtin--profit and loss (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-07-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trottier, Y -- Mandel, J L -- New York, N.Y. -- Science. 2001 Jul 20;293(5529):445-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉IGBMC-CNRS-INSERM-ULP, Illkirch Cedex 67404, C.U. de Strasbourg, France. yvon@titus.u-strasbg.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11463904" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Brain-Derived Neurotrophic Factor/genetics/*metabolism ; CREB-Binding Protein ; Caspases/metabolism ; Cells, Cultured ; Cerebral Cortex/*metabolism/pathology ; Corpus Striatum/*metabolism/pathology ; Gene Expression Regulation ; Humans ; Huntington Disease/genetics/*metabolism/pathology ; Mice ; Mice, Transgenic ; Mutation ; Nerve Tissue Proteins/chemistry/genetics/*physiology ; Neurons/*metabolism/pathology ; Nuclear Proteins/chemistry/genetics/metabolism/*physiology ; Trans-Activators/metabolism ; Transcription Factors/metabolism ; Transcription, Genetic
    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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  • 3
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    Corepressor-dependent silencing of chromosomal regions encoding neuronal genes (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-10-26
    Description: The molecular mechanisms by which central nervous system-specific genes are expressed only in the nervous system and repressed in other tissues remain a central issue in developmental and regulatory biology. Here, we report that the zinc-finger gene-specific repressor element RE-1 silencing transcription factor/neuronal restricted silencing factor (REST/NRSF) can mediate extraneuronal restriction by imposing either active repression via histone deacetylase recruitment or long-term gene silencing using a distinct functional complex. Silencing of neuronal-specific genes requires the recruitment of an associated corepressor, CoREST, that serves as a functional molecular beacon for the recruitment of molecular machinery that imposes silencing across a chromosomal interval, including transcriptional units that do not themselves contain REST/NRSF response elements.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lunyak, Victoria V -- Burgess, Robert -- Prefontaine, Gratien G -- Nelson, Charles -- Sze, Sing-Hoi -- Chenoweth, Josh -- Schwartz, Phillip -- Pevzner, Pavel A -- Glass, Christopher -- Mandel, Gail -- Rosenfeld, Michael G -- New York, N.Y. -- Science. 2002 Nov 29;298(5599):1747-52. Epub 2002 Oct 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute (HHMI), Department of Computer Science and Engineering, School of Medicine, University of California, San Diego, 9500 Gilman Drive, Room 345, La Jolla, CA 92093-0648, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12399542" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Carrier Proteins ; Cell Line ; *Chromosomal Proteins, Non-Histone ; Chromosomes/*genetics/metabolism ; Chromosomes, Human/genetics/metabolism ; Co-Repressor Proteins ; Computational Biology ; CpG Islands ; DNA Methylation ; DNA-Binding Proteins/metabolism ; Gene Expression Profiling ; Gene Expression Regulation ; *Gene Silencing ; Histone Deacetylases/metabolism ; Humans ; Intracellular Signaling Peptides and Proteins ; Membrane Proteins ; Methyl-CpG-Binding Protein 2 ; Mice ; Models, Genetic ; NAV1.2 Voltage-Gated Sodium Channel ; Nerve Growth Factors/genetics ; Nerve Tissue Proteins/chemistry/genetics/*metabolism ; Neurons/*metabolism ; Promoter Regions, Genetic ; Protein Structure, Tertiary ; Rats ; Repressor Proteins/chemistry/*metabolism ; Sodium Channels/genetics ; Transcription Factors/chemistry/*metabolism ; Transfection
    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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  • 4
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    A role for glia in the progression of Rett's syndrome (2011)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2011-07-01
    Description: Rett's syndrome (RTT) is an X-chromosome-linked autism spectrum disorder caused by loss of function of the transcription factor methyl-CpG-binding protein 2 (MeCP2). Although MeCP2 is expressed in most tissues, loss of MeCP2 expression results primarily in neurological symptoms. Earlier studies suggested the idea that RTT is due exclusively to loss of MeCP2 function in neurons. Although defective neurons clearly underlie the aberrant behaviours, we and others showed recently that the loss of MECP2 from glia negatively influences neurons in a non-cell-autonomous fashion. Here we show that in globally MeCP2-deficient mice, re-expression of Mecp2 preferentially in astrocytes significantly improved locomotion and anxiety levels, restored respiratory abnormalities to a normal pattern, and greatly prolonged lifespan compared to globally null mice. Furthermore, restoration of MeCP2 in the mutant astrocytes exerted a non-cell-autonomous positive effect on mutant neurons in vivo, restoring normal dendritic morphology and increasing levels of the excitatory glutamate transporter VGLUT1. Our study shows that glia, like neurons, are integral components of the neuropathology of RTT, and supports the targeting of glia as a strategy for improving the associated symptoms.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3268776/" 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/PMC3268776/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lioy, Daniel T -- Garg, Saurabh K -- Monaghan, Caitlin E -- Raber, Jacob -- Foust, Kevin D -- Kaspar, Brian K -- Hirrlinger, Petra G -- Kirchhoff, Frank -- Bissonnette, John M -- Ballas, Nurit -- Mandel, Gail -- P30 NS061800/NS/NINDS NIH HHS/ -- R01 HD056503/HD/NICHD NIH HHS/ -- R01 HD056503-03/HD/NICHD NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 Jun 29;475(7357):497-500. doi: 10.1038/nature10214.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vollum Institute, Oregon Health and Science University, Portland, Oregon 97239, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21716289" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anxiety/metabolism ; Astrocytes/metabolism ; Behavior, Animal ; Disease Progression ; Female ; Gene Expression Regulation ; Male ; Methyl-CpG-Binding Protein 2/deficiency/genetics/metabolism ; Mice ; Mice, Inbred C57BL ; Motor Activity ; Neuroglia/*metabolism/pathology ; Neurons/metabolism ; Rett Syndrome/*genetics/*metabolism/physiopathology ; Vesicular Glutamate Transport Protein 1/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 5
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    Genomic organization and deduced amino acid sequence of a putative sodium channel gene in Drosophila (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-08-14
    Description: The deduced amino acid sequence of a Drosophila gene isolated with a vertebrate sodium channel complementary DNA probe revealed an organization virtually identical to the vertebrate sodium channel protein; four homologous domains containing all putative membrane-spanning regions are repeated in tandem with connecting linkers of various sizes. All areas of the protein presumed to be critical for channel function show high evolutionary conservation. These include those proposed to function in voltage-sensitive gating, inactivation, and ion selectivity. All 24 putative gating charges of the vertebrate protein are in identical positions in the Drosophila gene. Ten introns interrupt the coding regions of the four homology units; introns with positions conserved among homology units bracket a region hypothesized to be the selectivity filter for the channel. The Drosophila gene maps to the right arm of the second chromosome in region 60D-E. This position does not coincide with any known mutations that confer behavioral phenotypes, but is close to the seizure locus (60A-B), which has been hypothesized to code for a voltage-sensitive sodium channel.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Salkoff, L -- Butler, A -- Wei, A -- Scavarda, N -- Giffen, K -- Ifune, C -- Goodman, R -- Mandel, G -- 1 R01 NS24785-01/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1987 Aug 14;237(4816):744-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2441469" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biological Evolution ; DNA/genetics ; DNA Restriction Enzymes ; Drosophila/*genetics ; Drosophila melanogaster/genetics ; Electrophorus/genetics ; Exons ; Gene Expression Regulation ; Introns ; *Ion Channels ; Membrane Proteins/*genetics ; RNA, Messenger/genetics ; Sequence Homology, Nucleic Acid ; Sodium/*metabolism
    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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  • 6
    Electronic Resource
    Electronic Resource
    The physical chemistry of polyelectrolyte solutionsPaper presented at the meeting of the GDCh-Fachgruppe “Makromolekulare Chemie” on “Polymers and Water” in Bad Nauheim (W-Germany) on April 2/3 1984. (1984)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 123 (1984), S. 63-83 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Some physical properties of aqueous solutions containing linear, flexible, polyelectrolytes are reviewed in order to emphasize the role of charge interactions in these systems which strongly depend on the charge of the macromolecular chain and the concentration of low molar mass electrolyte in solution. Particular emphasis is put on polyelectrolyte solutions containing an excess of added salt, which from a theoretical point of view are easier to understand. Both the dilute and the semi-dilute case will be discussed. In the former the problem of the electrostatic potential around the macromolecular chain is briefly reviewed as well as the use of a wormlike chain model to derive average dimensions of polyelectrolytes in solutions. In the latter the scaling approach to concentration effects in polyelectrolyte solutions is briefly discussed. The pecularities of the semi-dilute regime in polyelectrolyte solutions is illustrated with the help of results obtained with dynamic light scattering and the time dependent decay of electric birefringence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1984.051230103
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  • 7
    Electronic Resource
    Electronic Resource
    Das Mischzeitverhalten bei sehr geringen Konzentrationen (1993)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 65 (1993), S. 68-70 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330650111
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  • 8
    Electronic Resource
    Electronic Resource
    Dielectric properties of maleic acid-ethylene copolymer in salt-free aqueous solutions (1978)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 16 (1978), S. 641-651 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The dielectric behavior of maleic acid-ethylene copolymer solutions has been investigated at different polymer concentrations and two degrees of neutralization α′. It is shown that this behavior is analogous to that of ordinary polyacids. Also the experimental data can be explained in terms of the van der Touw-Mandel theory, but at low α′ a possible contribution from motion of negative charges (in turn related to bound proton fluctuations) has to be taken into account. The dielectric results suggest that the formation of intramolecular hydrogen bonds has an influence on the change of the average dimensions of the chain with increasing α′. This seems to be confirmed by viscosity data.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1978.180160406
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  • 9
    Electronic Resource
    Electronic Resource
    The conformational transition in partially esterified poly-(methacrylic acid) (1964)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 80 (1964), S. 141-148 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Konformationsumwandlung von teilweise veresterter Polymethacrylsüre wurde mit Hilfe der potentiometrischen Titration untersucht.Es wurde gefunden, daß die Stabilität der bei kleinem Dissoziationsgrad (α) vorliegenden Form nicht vermindert wird, wenn die Zahl jener Kettenglieder, die intramolekulare Wasserstoffbrücken ausbilden können, abnimmt. Es zeigt sich vielmehr, daß die Umwandlung mit der mittleren Ladung pro Struktureinheit zusammenhängt. Dies stützt die Hypothese, wonach die bei kleinen α-Werten stabile Form eine kompaktere Struktur besitzt, die möglicherweise durch VAN DER WAALsche Wechselwirkungen zwischen den  - CH3-Gruppen stabilisiert ist.
    Notes: The conformational transition of poly-(methacrylic acid), partially esterified with dimethyl sulfate, has been studied using potentiometric titration at constant temperature.It is found that the stability of the form existing at low values of dissociation (α) is not decreased by reducing the number of groups on the chain capable of establishing intramolecular hydrogen bonds. The transition is also shown to depend on the average charge per monomeric unit. This confirms the hypothesis that the stable form at low α-values is a compact structure stabilized probably by VAN DER WAALS attractions between  - CH3 groups.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1964.020800112
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  • 10
    Electronic Resource
    Electronic Resource
    Empirical approach to the potentiometric titration curve of weak polyacids (1970)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-2: Polymer Physics 8 (1970), S. 1841-1844 
    Details
    ISSN: 0449-2978
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1970.160081019
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