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  • 1
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    Oxytocin-mediated GABA inhibition during delivery attenuates autism pathogenesis in rodent offspring (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-02-08
    Description: We report that the oxytocin-mediated neuroprotective gamma-aminobutyric acid (GABA) excitatory-inhibitory shift during delivery is abolished in the valproate and fragile X rodent models of autism. During delivery and subsequently, hippocampal neurons in these models have elevated intracellular chloride levels, increased excitatory GABA, enhanced glutamatergic activity, and elevated gamma oscillations. Maternal pretreatment with bumetanide restored in offspring control electrophysiological and behavioral phenotypes. Conversely, blocking oxytocin signaling in naive mothers produced offspring having electrophysiological and behavioral autistic-like features. Our results suggest a chronic deficient chloride regulation in these rodent models of autism and stress the importance of oxytocin-mediated GABAergic inhibition during the delivery process. Our data validate the amelioration observed with bumetanide and oxytocin and point to common pathways in a drug-induced and a genetic rodent model of autism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tyzio, Roman -- Nardou, Romain -- Ferrari, Diana C -- Tsintsadze, Timur -- Shahrokhi, Amene -- Eftekhari, Sanaz -- Khalilov, Ilgam -- Tsintsadze, Vera -- Brouchoud, Corinne -- Chazal, Genevieve -- Lemonnier, Eric -- Lozovaya, Natalia -- Burnashev, Nail -- Ben-Ari, Yehezkel -- New York, N.Y. -- Science. 2014 Feb 7;343(6171):675-9. doi: 10.1126/science.1247190.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mediterranean Institute of Neurobiology (INMED), U901, INSERM, Marseille, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24503856" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autistic Disorder/*chemically induced/*genetics/metabolism ; Behavior, Animal ; Bumetanide/administration & dosage ; Chlorides/metabolism ; *Cytoprotection ; Disease Models, Animal ; Female ; Fragile X Mental Retardation Protein/genetics ; Maternal-Fetal Exchange ; Mice ; Oxytocin/*metabolism ; Parturition ; Pregnancy ; Rats ; Valproic Acid/pharmacology ; gamma-Aminobutyric Acid/*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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  • 2
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    Response to Comment on "Oxytocin-mediated GABA inhibition during delivery attenuates autism pathogenesis in rodent offspring" (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-10-11
    Description: Bambini-Junior et al. questioned whether our treatment in two rodent models of autism has a long-lasting effect into adulthood. In response, we show that bumetanide treatment around delivery attenuates autistic behavioral features in adult offspring. Therefore, the polarity of gamma-aminobutyric acid (GABA) actions during delivery exerts long-lasting priming actions after birth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eftekhari, Sanaz -- Shahrokhi, Amene -- Tsintsadze, Vera -- Nardou, Romain -- Brouchoud, Corinne -- Conesa, Magali -- Burnashev, Nail -- Ferrari, Diana C -- Ben-Ari, Yehezkel -- New York, N.Y. -- Science. 2014 Oct 10;346(6206):176. doi: 10.1126/science.1256009.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mediterranean Institute of Neurobiology (INMED), U901, INSERM, Marseille, France. UMR 901, Aix-Marseille University, Marseille, France. Neurochlore, Campus Scientifique de Luminy, 163 Route de Luminy, Marseille, France. On leave from Iran University of Medical Sciences, Tehran, Iran. ; Mediterranean Institute of Neurobiology (INMED), U901, INSERM, Marseille, France. UMR 901, Aix-Marseille University, Marseille, France. Neurochlore, Campus Scientifique de Luminy, 163 Route de Luminy, Marseille, France. On leave from Tehran University of Medical Sciences, Tehran, Iran. ; Mediterranean Institute of Neurobiology (INMED), U901, INSERM, Marseille, France. UMR 901, Aix-Marseille University, Marseille, France. ; Neurochlore, Campus Scientifique de Luminy, 163 Route de Luminy, Marseille, France. ; Mediterranean Institute of Neurobiology (INMED), U901, INSERM, Marseille, France. UMR 901, Aix-Marseille University, Marseille, France. Neurochlore, Campus Scientifique de Luminy, 163 Route de Luminy, Marseille, France. yehezkel.ben-ari@inserm.fr.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25301611" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autistic Disorder/*chemically induced/*genetics ; *Cytoprotection ; Female ; Oxytocin/*metabolism ; Pregnancy ; gamma-Aminobutyric Acid/*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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  • 3
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    Shear sensitive monomer-polymer laminate structure and method of using same (1993)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Monomer cholesteric liquid crystals have helical structures which result in a phenomenon known as selective reflection, wherein incident white light is reflected in such a way that its wavelength is governed by the instantaneous pitch of the helix structure. The pitch is dependent on temperature and external stress fields. It is possible to use such monomers in flow visualization and temperature measurement. However, the required thin layers of these monomers are quickly washed away by a flow, making their application time dependent for a given flow rate. The laminate structure according to the present invention comprises a liquid crystal polymer substrate attached to a test surface of an article. A light absorbing coating is applied to the substrate and is thin enough to permit bonding steric interaction between the liquid crystal polymer substrate and an overlying liquid crystal monomer thin film. Light is directed through and reflected by the liquid crystal monomer thin film and unreflected light is absorbed by the underlying coating. The wavelength of the reflected light is indicative of the shear stress experienced by the test surface. Novel aspects of the invention include its firm bonding of a liquid crystal monomer to a model and its use of a coating to reduce interference from light unreflected by the monomer helical structure.
    Keywords: STRUCTURAL MECHANICS
    Format: application/pdf
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  • 4
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    Method of determining shear stress employing a monomer-polymer laminate structure (1993)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A laminate structure attached to the test surface of an article is presented. The laminate structure is comprised of a liquid crystal polymer substrate. A light absorbing coating is applied to the substrate and is thin enough to permit bonding steric interaction between the liquid crystal polymer substrate and an overlying liquid crystal monomer thin film. Light is directed through and reflected by the liquid crystal monomer thin film and unreflected light is absorbed by the underlying coating. The wavelength of the reflected light is indicative of the shear stress experienced by the test surface.
    Keywords: STRUCTURAL MECHANICS
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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