380 research outputs found

    Il complotto interiore. Affrontare le nuove forme di alienazione

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    Il Pendolo di Foucault was published in 1988, and was immediately available in every bookshop. The plot tells the story of an apparent universal conspiracy which then turns out to be only a great misunderstanding. Thirty years later we realize that the phenomenon of good plot for a novel has become more and more widespread, invading fields unimaginable until recent times such as politics and the intellectual community. But what is a conspiracy theory? What kind of people believe in it? How to face this rising phenomenon and its implications? Recent studies on conspiracy theory and the work of Castoriadis suggest an answer to all these questions: revitalizing Democracy and educating people to autonomy

    Analysis of Copy Number Variants identifies new candidate genes for Autism Spectrum Disorder and Intellectual Disability

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    Autism spectrum disorder (ASD) and Intellectual Disability (ID) are complex neuropsychiatric disorders characterized by extensive clinical and genetic heterogeneity and with overlapping risk factors. The aim of my project was to further investigate the role of Copy Numbers Variants (CNVs), identified through genome-wide studies performed by the Autism Geome Project (AGP) and the CHERISH consortium in large cohorts of ASD and ID cases, respectively. Specifically, I focused on four rare genic CNVs, selected on the basis of their impact on interesting ASD/ID candidate genes: a) a compound heterozygous deletion involving CTNNA3, predicted to cause the lack of functional protein; b) a 15q13.3 duplication containing CHRNA7; c) a 2q31.1 microdeletion encompassing KLHL23, SSB and METTL5; d) Lastly, I investigated the putative imprinting regulation of the CADPS2 gene, disrupted by a maternal deletion in two siblings with ASD and ID. This study provides further evidence for the role of CTNNA3, CHRNA7, KLHL23 and CADPS2 as ASD and/or ID susceptibility genes, and highlights that rare genetic variation contributes to disease risk in different ways: some rare mutations, such as those impacting CTNNA3, act in a recessive mode of inheritance, while other CNVs, such as those occurring in the 15q13.3 region, are implicated in multiple developmental and/or neurological disorders possibly interacting with other susceptibility variants elsewhere in the genome. On the other hand, the discovery of a tissue-specific monoallelic expression for the CADPS2 gene, implicates the involvement of epigenetic regulatory mechanisms as risk factors conferring susceptibility to ASD/ID

    A CTNNA3 compound heterozygous deletion implicates a role for \u3b1T-catenin in susceptibility to autism spectrum disorder.

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    Autism spectrum disorder (ASD) is a highly heritable, neurodevelopmental condition showing extreme genetic heterogeneity. While it is well established that rare genetic variation, both de novo and inherited, plays an important role in ASD risk, recent studies also support a rare recessive contribution. METHODS: We identified a compound heterozygous deletion intersecting the CTNNA3 gene, encoding \u3b1T-catenin, in a proband with ASD and moderate intellectual disability. The deletion breakpoints were mapped at base-pair resolution, and segregation analysis was performed. We compared the frequency of CTNNA3 exonic deletions in 2,147 ASD cases from the Autism Genome Project (AGP) study versus the frequency in 6,639 controls. Western blot analysis was performed to get a quantitative characterisation of Ctnna3 expression during early brain development in mouse. RESULTS: The CTNNA3 compound heterozygous deletion includes a coding exon, leading to a putative frameshift and premature stop codon. Segregation analysis in the family showed that the unaffected sister is heterozygote for the deletion, having only inherited the paternal deletion. While the frequency of CTNNA3 exonic deletions is not significantly different between ASD cases and controls, no homozygous or compound heterozygous exonic deletions were found in a sample of over 6,000 controls. Expression analysis of Ctnna3 in the mouse cortex and hippocampus (P0-P90) provided support for its role in the early stage of brain development. CONCLUSION: The finding of a rare compound heterozygous CTNNA3 exonic deletion segregating with ASD, the absence of CTNNA3 homozygous exonic deletions in controls and the high expression of Ctnna3 in both brain areas analysed implicate CTNNA3 in ASD susceptibility

    A CTNNA3 compound heterozygous deletion implicates a role for αT-catenin in susceptibility to autism spectrum disorder

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    BACKGROUND: Autism spectrum disorder (ASD) is a highly heritable, neurodevelopmental condition showing extreme genetic heterogeneity. While it is well established that rare genetic variation, both de novo and inherited, plays an important role in ASD risk, recent studies also support a rare recessive contribution. METHODS: We identified a compound heterozygous deletion intersecting the CTNNA3 gene, encoding αT-catenin, in a proband with ASD and moderate intellectual disability. The deletion breakpoints were mapped at base-pair resolution, and segregation analysis was performed. We compared the frequency of CTNNA3 exonic deletions in 2,147 ASD cases from the Autism Genome Project (AGP) study versus the frequency in 6,639 controls. Western blot analysis was performed to get a quantitative characterisation of Ctnna3 expression during early brain development in mouse. RESULTS: The CTNNA3 compound heterozygous deletion includes a coding exon, leading to a putative frameshift and premature stop codon. Segregation analysis in the family showed that the unaffected sister is heterozygote for the deletion, having only inherited the paternal deletion. While the frequency of CTNNA3 exonic deletions is not significantly different between ASD cases and controls, no homozygous or compound heterozygous exonic deletions were found in a sample of over 6,000 controls. Expression analysis of Ctnna3 in the mouse cortex and hippocampus (P0-P90) provided support for its role in the early stage of brain development. CONCLUSION: The finding of a rare compound heterozygous CTNNA3 exonic deletion segregating with ASD, the absence of CTNNA3 homozygous exonic deletions in controls and the high expression of Ctnna3 in both brain areas analysed implicate CTNNA3 in ASD susceptibility

    Il Crocifisso ottoniano di Vercelli. Indagini tecnologiche, diagnostica, restauri

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    Il volume presenta i risultati delle ricerche prodotte n occasione del restauro del crocifisso argenteo di etĂ  ottoniana della Cattedrale di Vercelli

    Sculture datate dell'Alto Medioevo nella Langobardia Maior. Una sintesi e qualche riflessione.

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    The difficulty of placing most artefacts in a precise chronological order is one of the problems in the study of early medieval sculpture. Having overcome the initial tendency to provide generic dates (e.g. “8th-9th century”), as studies have continued, a greater knowledge of the lexicon and syntax of sculpture has been achieved, allowing more precise dates to be advanced. Nevertheless, there is still a need to find elements among the thousands of sculptures, almost always de-contextualised and fragmentary, that can be anchored to indisputable chronological terms. Although it is very difficult to find sculptures dated ad annum, cases in which the chronological coordinates can be restricted to a few years or a decade are not rare. Here we examine some sculptures, mainly from the 7th and 8th centuries, that have secure chronological coordinates, as they are linked to monuments or well-known personalities. The aim is to test to what extent the possession of certain dating elements can endow the sculptures with a function, so to speak, of “fossil-guide” – e.g. the sculptures of the so-called “Liutprandian renaissance” – for the dating, albeit approximate, of entire groups, more or less large than other sculptures that instead lack objective chronological coordinates, and whose dating can only be proposed on the basis of formal or stylistic analysi
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