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Auteur Catalina BETANCUR |
Documents disponibles écrits par cet auteur (14)
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Complex nature of apparently balanced chromosomal rearrangements in patients with autism spectrum disorder / Anne-Claude TABET in Molecular Autism, (March 2015)
[article]
Titre : Complex nature of apparently balanced chromosomal rearrangements in patients with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Anne-Claude TABET, Auteur ; Alain VERLOES, Auteur ; Marion PILORGE, Auteur ; Elsa DELABY, Auteur ; Richard DELORME, Auteur ; Gudrun NYGREN, Auteur ; Françoise DEVILLARD, Auteur ; Marion GÉRARD, Auteur ; Sandrine PASSEMARD, Auteur ; Delphine HERON, Auteur ; Jean-Pierre SIFFROI, Auteur ; Aurelia JACQUETTE, Auteur ; Andrée DELAHAYE, Auteur ; Laurence PERRIN, Auteur ; Céline DUPONT, Auteur ; Azzedine ABOURA, Auteur ; Pierre BITOUN, Auteur ; Mary COLEMAN, Auteur ; Marion LEBOYER, Auteur ; Christopher GILLBERG, Auteur ; Brigitte BENZACKEN, Auteur ; Catalina BETANCUR, Auteur Article en page(s) : p.1-14 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Apparently balanced chromosomal rearrangements can be associated with an abnormal phenotype, including intellectual disability and autism spectrum disorder (ASD). Genome-wide microarrays reveal cryptic genomic imbalances, related or not to the breakpoints, in 25% to 50% of patients with an abnormal phenotype carrying a microscopically balanced chromosomal rearrangement. Here we performed microarray analysis of 18 patients with ASD carrying balanced chromosomal abnormalities to identify submicroscopic imbalances implicated in abnormal neurodevelopment. En ligne : http://dx.doi.org/10.1186/s13229-015-0015-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=277
in Molecular Autism > (March 2015) . - p.1-14[article] Complex nature of apparently balanced chromosomal rearrangements in patients with autism spectrum disorder [Texte imprimé et/ou numérique] / Anne-Claude TABET, Auteur ; Alain VERLOES, Auteur ; Marion PILORGE, Auteur ; Elsa DELABY, Auteur ; Richard DELORME, Auteur ; Gudrun NYGREN, Auteur ; Françoise DEVILLARD, Auteur ; Marion GÉRARD, Auteur ; Sandrine PASSEMARD, Auteur ; Delphine HERON, Auteur ; Jean-Pierre SIFFROI, Auteur ; Aurelia JACQUETTE, Auteur ; Andrée DELAHAYE, Auteur ; Laurence PERRIN, Auteur ; Céline DUPONT, Auteur ; Azzedine ABOURA, Auteur ; Pierre BITOUN, Auteur ; Mary COLEMAN, Auteur ; Marion LEBOYER, Auteur ; Christopher GILLBERG, Auteur ; Brigitte BENZACKEN, Auteur ; Catalina BETANCUR, Auteur . - p.1-14.
Langues : Anglais (eng)
in Molecular Autism > (March 2015) . - p.1-14
Index. décimale : PER Périodiques Résumé : Apparently balanced chromosomal rearrangements can be associated with an abnormal phenotype, including intellectual disability and autism spectrum disorder (ASD). Genome-wide microarrays reveal cryptic genomic imbalances, related or not to the breakpoints, in 25% to 50% of patients with an abnormal phenotype carrying a microscopically balanced chromosomal rearrangement. Here we performed microarray analysis of 18 patients with ASD carrying balanced chromosomal abnormalities to identify submicroscopic imbalances implicated in abnormal neurodevelopment. En ligne : http://dx.doi.org/10.1186/s13229-015-0015-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=277 Delineation of the genetic and clinical spectrum of Phelan-McDermid syndrome caused by SHANK3 point mutations / S. DE RUBEIS in Molecular Autism, 9 (2018)
[article]
Titre : Delineation of the genetic and clinical spectrum of Phelan-McDermid syndrome caused by SHANK3 point mutations Type de document : Texte imprimé et/ou numérique Auteurs : S. DE RUBEIS, Auteur ; P. M. SIPER, Auteur ; A. DURKIN, Auteur ; J. WEISSMAN, Auteur ; F. MURATET, Auteur ; Danielle B. HALPERN, Auteur ; M. D. P. TRELLES, Auteur ; Y. FRANK, Auteur ; R. LOZANO, Auteur ; A. Ting WANG, Auteur ; J. L. HOLDER, Auteur ; Catalina BETANCUR, Auteur ; Joseph D. BUXBAUM, Auteur ; A. KOLEVZON, Auteur Article en page(s) : 31p. Langues : Anglais (eng) Mots-clés : Adolescent Adult Child Child, Preschool Chromosome Deletion Chromosome Disorders/genetics/pathology Chromosomes, Human, Pair 22/genetics Female Haploinsufficiency Humans Male Nerve Tissue Proteins/genetics Phenotype Point Mutation 22q13 deletion syndrome Autism spectrum disorder Intellectual disability Phelan-McDermid syndrome shank3 Sequence variants Index. décimale : PER Périodiques Résumé : Background: Phelan-McDermid syndrome (PMS) is a neurodevelopmental disorder characterized by psychiatric and neurological features. Most reported cases are caused by 22q13.3 deletions, leading to SHANK3 haploinsufficiency, but also usually encompassing many other genes. While the number of point mutations identified in SHANK3 has increased in recent years due to large-scale sequencing studies, systematic studies describing the phenotype of individuals harboring such mutations are lacking. Methods: We provide detailed clinical and genetic data on 17 individuals carrying mutations in SHANK3. We also review 60 previously reported patients with pathogenic or likely pathogenic SHANK3 variants, often lacking detailed phenotypic information. Results: SHANK3 mutations in our cohort and in previously reported cases were distributed throughout the protein; the majority were truncating and all were compatible with de novo inheritance. Despite substantial allelic heterogeneity, four variants were recurrent (p.Leu1142Valfs*153, p.Ala1227Glyfs*69, p.Arg1255Leufs*25, and c.2265+1G>A), suggesting that these are hotspots for de novo mutations. All individuals studied had intellectual disability, and autism spectrum disorder was prevalent (73%). Severe speech deficits were common, but in contrast to individuals with 22q13.3 deletions, the majority developed single words, including 41% with at least phrase speech. Other common findings were consistent with reports among individuals with 22q13.3 deletions, including hypotonia, motor skill deficits, regression, seizures, brain abnormalities, mild dysmorphic features, and feeding and gastrointestinal problems. Conclusions: Haploinsufficiency of SHANK3 resulting from point mutations is sufficient to cause a broad range of features associated with PMS. Our findings expand the molecular and phenotypic spectrum of PMS caused by SHANK3 point mutations and suggest that, in general, speech impairment and motor deficits are more severe in the case of deletions. In contrast, renal abnormalities associated with 22q13.3 deletions do not appear to be related to the loss of SHANK3. En ligne : https://dx.doi.org/10.1186/s13229-018-0205-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=371
in Molecular Autism > 9 (2018) . - 31p.[article] Delineation of the genetic and clinical spectrum of Phelan-McDermid syndrome caused by SHANK3 point mutations [Texte imprimé et/ou numérique] / S. DE RUBEIS, Auteur ; P. M. SIPER, Auteur ; A. DURKIN, Auteur ; J. WEISSMAN, Auteur ; F. MURATET, Auteur ; Danielle B. HALPERN, Auteur ; M. D. P. TRELLES, Auteur ; Y. FRANK, Auteur ; R. LOZANO, Auteur ; A. Ting WANG, Auteur ; J. L. HOLDER, Auteur ; Catalina BETANCUR, Auteur ; Joseph D. BUXBAUM, Auteur ; A. KOLEVZON, Auteur . - 31p.
Langues : Anglais (eng)
in Molecular Autism > 9 (2018) . - 31p.
Mots-clés : Adolescent Adult Child Child, Preschool Chromosome Deletion Chromosome Disorders/genetics/pathology Chromosomes, Human, Pair 22/genetics Female Haploinsufficiency Humans Male Nerve Tissue Proteins/genetics Phenotype Point Mutation 22q13 deletion syndrome Autism spectrum disorder Intellectual disability Phelan-McDermid syndrome shank3 Sequence variants Index. décimale : PER Périodiques Résumé : Background: Phelan-McDermid syndrome (PMS) is a neurodevelopmental disorder characterized by psychiatric and neurological features. Most reported cases are caused by 22q13.3 deletions, leading to SHANK3 haploinsufficiency, but also usually encompassing many other genes. While the number of point mutations identified in SHANK3 has increased in recent years due to large-scale sequencing studies, systematic studies describing the phenotype of individuals harboring such mutations are lacking. Methods: We provide detailed clinical and genetic data on 17 individuals carrying mutations in SHANK3. We also review 60 previously reported patients with pathogenic or likely pathogenic SHANK3 variants, often lacking detailed phenotypic information. Results: SHANK3 mutations in our cohort and in previously reported cases were distributed throughout the protein; the majority were truncating and all were compatible with de novo inheritance. Despite substantial allelic heterogeneity, four variants were recurrent (p.Leu1142Valfs*153, p.Ala1227Glyfs*69, p.Arg1255Leufs*25, and c.2265+1G>A), suggesting that these are hotspots for de novo mutations. All individuals studied had intellectual disability, and autism spectrum disorder was prevalent (73%). Severe speech deficits were common, but in contrast to individuals with 22q13.3 deletions, the majority developed single words, including 41% with at least phrase speech. Other common findings were consistent with reports among individuals with 22q13.3 deletions, including hypotonia, motor skill deficits, regression, seizures, brain abnormalities, mild dysmorphic features, and feeding and gastrointestinal problems. Conclusions: Haploinsufficiency of SHANK3 resulting from point mutations is sufficient to cause a broad range of features associated with PMS. Our findings expand the molecular and phenotypic spectrum of PMS caused by SHANK3 point mutations and suggest that, in general, speech impairment and motor deficits are more severe in the case of deletions. In contrast, renal abnormalities associated with 22q13.3 deletions do not appear to be related to the loss of SHANK3. En ligne : https://dx.doi.org/10.1186/s13229-018-0205-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=371 Etiological Heterogeneity in Autism Spectrum Disorders: Role of Rare Variants / Catalina BETANCUR
Titre : Etiological Heterogeneity in Autism Spectrum Disorders: Role of Rare Variants Type de document : Texte imprimé et/ou numérique Auteurs : Catalina BETANCUR, Auteur ; Mary COLEMAN, Auteur Année de publication : 2013 Importance : p.113-144 Langues : Anglais (eng) Index. décimale : SCI-D SCI-D - Neurosciences Résumé : Autism spectrum disorders (ASD) encompass a group of behaviorally defined developmental disabilities characterized by marked clinical and etiological heterogeneity. There is increasing evidence that ASD can arise from rare, highly penetrant mutations and genomic imbalances. There are at present over 100 disease genes and 50 recurrent genomic imbalances implicated in the etiology of ASD. These genes and loci have so far all been causally implicated in intellectual disability, indicating that these two neurodevelopmental disorders share common genetic bases. Similarly, many genes involved in epilepsy can also result in ASD. These observations indicate that these genes cause a continuum of neurodevelopmental disorders that manifest in different ways depending on other genetic, environmental or stochastic factors. Increased recognition of the etiological heterogeneity of ASD will expand the number of target genes for neurobiological investigations, reveal functional pathways, and assist the development of novel therapeutic approaches. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=189 Etiological Heterogeneity in Autism Spectrum Disorders: Role of Rare Variants [Texte imprimé et/ou numérique] / Catalina BETANCUR, Auteur ; Mary COLEMAN, Auteur . - 2013 . - p.113-144.
Langues : Anglais (eng)
Index. décimale : SCI-D SCI-D - Neurosciences Résumé : Autism spectrum disorders (ASD) encompass a group of behaviorally defined developmental disabilities characterized by marked clinical and etiological heterogeneity. There is increasing evidence that ASD can arise from rare, highly penetrant mutations and genomic imbalances. There are at present over 100 disease genes and 50 recurrent genomic imbalances implicated in the etiology of ASD. These genes and loci have so far all been causally implicated in intellectual disability, indicating that these two neurodevelopmental disorders share common genetic bases. Similarly, many genes involved in epilepsy can also result in ASD. These observations indicate that these genes cause a continuum of neurodevelopmental disorders that manifest in different ways depending on other genetic, environmental or stochastic factors. Increased recognition of the etiological heterogeneity of ASD will expand the number of target genes for neurobiological investigations, reveal functional pathways, and assist the development of novel therapeutic approaches. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=189 Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire A family with autism and rare copy number variants disrupting the Duchenne/Becker muscular dystrophy gene DMD and TRPM3 / Alistair T. PAGNAMENTA in Journal of Neurodevelopmental Disorders, 3-2 (June 2011)
[article]
Titre : A family with autism and rare copy number variants disrupting the Duchenne/Becker muscular dystrophy gene DMD and TRPM3 Type de document : Texte imprimé et/ou numérique Auteurs : Alistair T. PAGNAMENTA, Auteur ; R. HOLT, Auteur ; M. YUSUF, Auteur ; D. PINTO, Auteur ; K. WING, Auteur ; Catalina BETANCUR, Auteur ; Stephen SCHERER, Auteur ; E. V. VOLPI, Auteur ; A. P. MONACO, Auteur Article en page(s) : p.124-31 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Autism spectrum disorder is a genetically complex and clinically heterogeneous neurodevelopmental disorder. A recent study by the Autism Genome Project (AGP) used 1M single-nucleotide polymorphism arrays to show that rare genic copy number variants (CNVs), possibly acting in tandem, play a significant role in the genetic aetiology of this condition. In this study, we describe the phenotypic and genomic characterisation of a multiplex autism family from the AGP study that was found to harbour a duplication of exons 31-44 of the Duchenne/Becker muscular dystrophy gene DMD and also a rare deletion involving exons 1-9 of TRPM3. Further characterisation of these extremely rare CNVs was carried out using quantitative PCR, fluorescent in situ hybridisation, long-range PCR amplification and sequencing of junction fragments. The maternal chrX:32,097,213-32,321,945 tandem duplication and paternal chr9:72,480,413-73,064,196 deletion (NCBI build 36 coordinates) were transmitted to both affected boys, potentially signifying a multi-hit mechanism. The DMD reading frame rule predicts a Becker phenotype, characterised by later onset and milder symptoms. When last evaluated, neither child had developed signs of muscular dystrophy. These data are consistent with a degree of comorbidity between autism and muscular dystrophy and suggest that genomic background as well as the position of the mutation within the DMD gene may impact on the neurological correlates of Duchenne/Becker muscular dystrophy. Finally, communicating unexpected findings such as these back to families raises a number of ethical questions, which are discussed. En ligne : http://dx.doi.org/10.1007/s11689-011-9076-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=343
in Journal of Neurodevelopmental Disorders > 3-2 (June 2011) . - p.124-31[article] A family with autism and rare copy number variants disrupting the Duchenne/Becker muscular dystrophy gene DMD and TRPM3 [Texte imprimé et/ou numérique] / Alistair T. PAGNAMENTA, Auteur ; R. HOLT, Auteur ; M. YUSUF, Auteur ; D. PINTO, Auteur ; K. WING, Auteur ; Catalina BETANCUR, Auteur ; Stephen SCHERER, Auteur ; E. V. VOLPI, Auteur ; A. P. MONACO, Auteur . - p.124-31.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 3-2 (June 2011) . - p.124-31
Index. décimale : PER Périodiques Résumé : Autism spectrum disorder is a genetically complex and clinically heterogeneous neurodevelopmental disorder. A recent study by the Autism Genome Project (AGP) used 1M single-nucleotide polymorphism arrays to show that rare genic copy number variants (CNVs), possibly acting in tandem, play a significant role in the genetic aetiology of this condition. In this study, we describe the phenotypic and genomic characterisation of a multiplex autism family from the AGP study that was found to harbour a duplication of exons 31-44 of the Duchenne/Becker muscular dystrophy gene DMD and also a rare deletion involving exons 1-9 of TRPM3. Further characterisation of these extremely rare CNVs was carried out using quantitative PCR, fluorescent in situ hybridisation, long-range PCR amplification and sequencing of junction fragments. The maternal chrX:32,097,213-32,321,945 tandem duplication and paternal chr9:72,480,413-73,064,196 deletion (NCBI build 36 coordinates) were transmitted to both affected boys, potentially signifying a multi-hit mechanism. The DMD reading frame rule predicts a Becker phenotype, characterised by later onset and milder symptoms. When last evaluated, neither child had developed signs of muscular dystrophy. These data are consistent with a degree of comorbidity between autism and muscular dystrophy and suggest that genomic background as well as the position of the mutation within the DMD gene may impact on the neurological correlates of Duchenne/Becker muscular dystrophy. Finally, communicating unexpected findings such as these back to families raises a number of ethical questions, which are discussed. En ligne : http://dx.doi.org/10.1007/s11689-011-9076-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=343 High-functioning autism spectrum disorder and fragile X syndrome: report of two affected sisters / Pauline CHASTE in Molecular Autism, (June 2012)
[article]
Titre : High-functioning autism spectrum disorder and fragile X syndrome: report of two affected sisters Type de document : Texte imprimé et/ou numérique Auteurs : Pauline CHASTE, Auteur ; Catalina BETANCUR, Auteur ; Marion GERARD-BLANLUET, Auteur ; Anne BARGIACCHI, Auteur ; Suzanne KUZBARI, Auteur ; Séverine DRUNAT, Auteur ; Marion LEBOYER, Auteur ; Thomas BOURGERON, Auteur ; Richard DELORME, Auteur Année de publication : 2012 Article en page(s) : 13 p. Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Background
Fragile X syndrome (FXS) is the most common inherited cause of intellectual disability (ID), as well as the most frequent monogenic cause of autism spectrum disorder (ASD). Men with FXS exhibit ID, often associated with autistics features, whereas women heterozygous for the full mutation are typically less severely affected; about half have a normal or borderline intelligence quotient (IQ). Previous findings have shown a strong association between ID and ASD in both men and women with FXS. We describe here the case of two sisters with ASD and FXS but without ID. One of the sisters presented with high-functioning autism, the other one with pervasive developmental disorder not otherwise specified and low normal IQ.
Methods
The methylation status of the mutated FMR1 alleles was examined by Southern blot and methylation-sensitive polymerase chain reaction. The X-chromosome inactivation was determined by analyzing the methylation status of the androgen receptor at Xq12.
Results
We present the phenotype of the two sisters and other family members. Both sisters carried a full mutation in the FMR1 gene, with complete methylation and random X chromosome inactivation.
Conclusions
These findings suggest that autistic behaviors and cognitive impairment can manifest as independent traits in FXS. Mutations in FMR1, known to cause syndromic autism, may also contribute to the etiology of high-functioning, non-syndromic ASD, particularly in women. Thus, screening for FXS in patients with ASD should not be limited to those with comorbid ID.En ligne : http://dx.doi.org/10.1186/2040-2392-3-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=178
in Molecular Autism > (June 2012) . - 13 p.[article] High-functioning autism spectrum disorder and fragile X syndrome: report of two affected sisters [Texte imprimé et/ou numérique] / Pauline CHASTE, Auteur ; Catalina BETANCUR, Auteur ; Marion GERARD-BLANLUET, Auteur ; Anne BARGIACCHI, Auteur ; Suzanne KUZBARI, Auteur ; Séverine DRUNAT, Auteur ; Marion LEBOYER, Auteur ; Thomas BOURGERON, Auteur ; Richard DELORME, Auteur . - 2012 . - 13 p.
Langues : Anglais (eng)
in Molecular Autism > (June 2012) . - 13 p.
Index. décimale : PER Périodiques Résumé : Background
Fragile X syndrome (FXS) is the most common inherited cause of intellectual disability (ID), as well as the most frequent monogenic cause of autism spectrum disorder (ASD). Men with FXS exhibit ID, often associated with autistics features, whereas women heterozygous for the full mutation are typically less severely affected; about half have a normal or borderline intelligence quotient (IQ). Previous findings have shown a strong association between ID and ASD in both men and women with FXS. We describe here the case of two sisters with ASD and FXS but without ID. One of the sisters presented with high-functioning autism, the other one with pervasive developmental disorder not otherwise specified and low normal IQ.
Methods
The methylation status of the mutated FMR1 alleles was examined by Southern blot and methylation-sensitive polymerase chain reaction. The X-chromosome inactivation was determined by analyzing the methylation status of the androgen receptor at Xq12.
Results
We present the phenotype of the two sisters and other family members. Both sisters carried a full mutation in the FMR1 gene, with complete methylation and random X chromosome inactivation.
Conclusions
These findings suggest that autistic behaviors and cognitive impairment can manifest as independent traits in FXS. Mutations in FMR1, known to cause syndromic autism, may also contribute to the etiology of high-functioning, non-syndromic ASD, particularly in women. Thus, screening for FXS in patients with ASD should not be limited to those with comorbid ID.En ligne : http://dx.doi.org/10.1186/2040-2392-3-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=178 Identification de mutations associées à l'autisme et au syndrome d'Asperger dans deux gènes du chromosome X codant les neuroligines NLGN3 et NLGN4 / Stéphane JAMAIN in Bulletin Scientifique de l'arapi (Le), 11 (automne 2003)
PermalinkIntroduction / Mary COLEMAN
PermalinkA large-scale survey of the novel 15q24 microdeletion syndrome in autism spectrum disorders identifies an atypical deletion that narrows the critical region / L. Alison MCINNES in Molecular Autism, (March 2010)
PermalinkNeuropsychiatric decompensation in adolescents and adults with Phelan-McDermid syndrome: a systematic review of the literature / A. KOLEVZON in Molecular Autism, 10 (2019)
PermalinkOptimizing the phenotyping of rodent ASD models: Enrichment analysis of mouse and human neurobiological phenotypes associated with high-risk autism genes identifies morphological, electrophysiological, neurological, and behavioral features / Joseph D. BUXBAUM in Molecular Autism, (February 2012)
PermalinkProspective investigation of autism and genotype-phenotype correlations in 22q13 deletion syndrome and SHANK3 deficiency / Latha V. SOORYA in Molecular Autism, (June 2013)
PermalinkRigor in science and science reporting: updated guidelines for submissions to Molecular Autism / Joseph D. BUXBAUM in Molecular Autism, 10 (2019)
PermalinkSHANK3 haploinsufficiency: a common but underdiagnosed highly penetrant monogenic cause of autism spectrum disorders / Catalina BETANCUR in Molecular Autism, (June 2013)
PermalinkSynaptic Disorders / Catalina BETANCUR
Permalink