13 results on '"Périsse, D."'
Search Results
2. Anomalous Strain Rate Effect in Ultrafine Grained Titanium
- Author
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Monteiro, Sergio Neves, Lopes, Felipe Perissé D., de Carvalho, Eduardo Atem, and Elias, Carlos N.
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- 2012
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3. Developmental and symptom profiles in early-onset psychosis
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Ferrafiat, Vladimir, Raffin, Marie, Freri, Elena, Granata, Tiziana, Nardocci, Nardo, Zibordi, Federica, Bodeau, Nicolas, Benarous, Xavier, Olliac, Bertrand, Riquin, Elise, Viaux, Sylvie, Haroche, Julien, Amoura, Zahir, Gérardin, Priscille, Consoli, Angèle, Zahoui, Mohamed, Zhou, Bo, Bilan, Frederic, Zhang, Xianglong, Gilbert-Dussardier, Brigitte, Viaux-Savelon, Sylvie, Pattni, Reenal, Ho, Steve, Urban, Alexander, Delion, Pierre, Labreuche, Julien, Deplanque, Dominique, Duhamel, Alain, Lallié, Céline, Ravary, Maud, Goëb, Jean-Louis, Medjkane, François, Gauthier, Soizic, Anzalone, Salvatore, Zaoui, Mohamed, Chetouani, Mohamed, Villa, François, Berthoz, Alain, Angeard, N., Huerta, E., Gargiulo, M., Servais, L., Eymard, B., Chérot, E., Keren, B., Dubourg, C., Carré, W., Fradin, M., Lavillaureix, A., Afenjar, A., Burglen, L., Whalen, S., Charles, P., Marey, I., Heide, S., Jacquette, A., Heron, D., Doummar, D., Rodriguez, D., Billette de Villemeur, T., Moutard, M.-L., Guët, A., Périsse, D., Demurger, F., Quelin, C., Depienne, C., Odent, S., Nava, C., David, V., Pasquier, L., Mignot, C., Giannitelli, Marianna, Levinson, Douglas, Cohen, David, Xavier, Jean, Laurent-Levinson, Claudine, CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut des Systèmes Intelligents et de Robotique (ISIR), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Neuroépidémiologie Tropicale (NET), CHU Limoges-Institut d'Epidémiologie Neurologique et de Neurologie Tropicale-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST), Université de Limoges (UNILIM)-Université de Limoges (UNILIM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Fédération hospitalo-universitaire de psychiatrie de l'enfant et de l'adolescent [Rouen], CHU Rouen, Normandie Université (NU)-Normandie Université (NU), Stanford University, Service Génétique Médicale [CHU Poitiers], Centre hospitalier universitaire de Poitiers (CHU Poitiers), Laboratoire de Neurosciences Fonctionnelles et Pathologies (LNFP), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique (CNRS), Evaluation des technologies de santé et des pratiques médicales - ULR 2694 (METRICS), Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Troubles cognitifs dégénératifs et vasculaires - U 1171 - EA 1046 (TCDV), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille, Droit et Santé-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Laboratoire Sciences Cognitives et Sciences Affectives - UMR 9193 (SCALab), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Perception, Interaction, Robotique sociales (PIROS), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Paris Diderot - Paris 7 (UPD7), Laboratoire de Physiologie de la Perception et de l'Action (LPPA), Collège de France (CdF (institution))-Centre National de la Recherche Scientifique (CNRS), Institut de Myologie, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Association française contre les myopathies (AFM-Téléthon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD [France-Ouest]), Service: neuropédiatrie pathologie du développement, Université Pierre et Marie Curie - Paris 6 (UPMC), Environnements et Paléoenvironnements OCéaniques (EPOC), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Service de génétique clinique [Rennes], Université de Rennes (UR)-CHU Pontchaillou [Rennes]-hôpital Sud, National Alliance for Research on Schizophrenia and Depression, Centre de Référence des Maladies Rares à Expression Psychiatrique, Department of Child and Adolescent Psychiatry, Assistance Publique-Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Stanford Schizophrenia Genetics Research Fund, Service de Psychiatrie de l'Enfant et de l'Adolescent [CHU Pitié-Salpêtrière] (SPEA), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-CHU Limoges-Institut d'Epidémiologie Neurologique et de Neurologie Tropicale-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de médecine interne [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Troubles cognitifs dégénératifs et vasculaires - U 1171 (TCDV), Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Institut National de la Santé et de la Recherche Médicale (INSERM), Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193 (SCALab), Service de Génétique Cytogénétique et Embryologie [CHU Pitié-Salpêtrière], Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE), Service de génétique clinique, and hôpital Sud
- Subjects
Adult ,Psychosis ,Adolescent ,Early onset psychosis ,03 medical and health sciences ,[SCCO]Cognitive science ,0302 clinical medicine ,Cluster analysis ,Humans ,Medicine ,Medical diagnosis ,Child ,Children ,Biological Psychiatry ,ComputingMilieux_MISCELLANEOUS ,Retrospective Studies ,Psychopathology ,business.industry ,Neuropsychology ,medicine.disease ,030227 psychiatry ,Psychiatry and Mental health ,Symptom profiles ,Psychotic Disorders ,Schizophrenia ,Cohort ,Factor analysis ,business ,030217 neurology & neurosurgery ,Clinical psychology - Abstract
Psychotic disorders in children are more heterogeneous than is captured by categorical diagnoses. In a new cohort of children and adolescents, we evaluated the relationships among age at onset (AAO), clinical symptoms and developmental impairments. Patients with schizophrenia and other "spectrum" psychotic diagnoses (N = 88; AAO 6-17, mean 12.6) were evaluated with diagnostic interviews, a new clinical scale (Lifetime Dimensions of Psychosis Scale-Child and Adolescent), and neuropsychological and medical evaluations. Key findings were replicated in an adult cohort of 2420 cases, including 127 with retrospective AAO13. Factor and cluster analyses were carried out to identify clinical profiles. Five clinical factors were identified in each cohort: Positive, Bizarre Positive, Negative/Formal Thought Disorder, Depression and Mania. Earlier AAO predicted severity of bizarre positive symptoms in children and of bizarre and other symptoms in adults. Four clinical clusters in the child cohort were characterized by: more severe bizarre positive symptoms (N = 31); negative symptoms (N = 15); premorbid autism spectrum features and developmental delay (N = 12); and depressive symptoms with heterogeneous diagnoses and mild positive/negative symptoms (N = 25). Previous factor-analytic studies of childhood psychosis did not specifically consider bizarre positive symptoms. Here, bizarre positive symptoms emerged as clinical markers of severe, childhood-onset psychosis similar to adult schizophrenia. The four clusters are clinically meaningful and useful for treatment planning and potentially for biological research. Childhood-onset cases are rare and thus difficult to study, but additional, larger cohorts may be useful in dissecting the biological and developmental heterogeneity of psychotic disorders.
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- 2019
4. Risk factors of acute behavioral regression in psychiatrically hospitalized adolescents with autism.
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Périsse D, Amiet C, Consoli A, Thorel MV, Gourfinkel-An I, Bodeau N, Guinchat V, Barthélémy C, and Cohen D
- Abstract
AIM: During adolescence, some individuals with autism engage in severe disruptive behaviors, such as violence, agitation, tantrums, or self-injurious behaviors. We aimed to assess risk factors associated with very acute states and regression in adolescents with autism in an inpatient population. METHOD: Between 2001 and 2005, we reviewed the charts of all adolescents with autism (N=29, mean age=14.8 years, 79% male) hospitalized for severe disruptive behaviors in a psychiatric intensive care unit. We systematically collected data describing socio-demographic characteristics, clinical variables (severity, presence of language, cognitive level), associated organic conditions, etiologic diagnosis of the episode, and treatments. RESULTS: All patients exhibited severe autistic symptoms and intellectual disability, and two-thirds had no functional verbal language. Fifteen subjects exhibited epilepsy, including three cases in which epilepsy was unknown before the acute episode. For six (21%) of the subjects, uncontrolled seizures were considered the main cause of the disruptive behaviors. Other suspected risk factors associated with disruptive behavior disorders included adjustment disorder (N=7), lack of adequate therapeutic or educational management (N=6), depression (N=2), catatonia (N=2), and painful comorbid organic conditions (N=3). CONCLUSION: Disruptive behaviors among adolescents with autism may stem from diverse risk factors, including environmental problems, comorbid acute psychiatric conditions, or somatic diseases such as epilepsy. The management of these behavioral changes requires a multidisciplinary functional approach. [ABSTRACT FROM AUTHOR]
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- 2010
5. Phenomenology, socio-demographic factors and outcome upon discharge of manic and mixed episodes in hospitalized adolescents: a chart review.
- Author
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Brunelle J, Consoli A, Tanguy M, Huynh C, Périsse D, Deniau E, Guilé J, Gérardin P, and Cohen D
- Abstract
BACKGROUND: The existence of bipolar disorder type I (BD-I) during adolescence is now clearly established whereas there are still some controversies on BD-II and BD-NOS diagnosis, mainly in Europe (O'Dowd in Br Med J 29, 2006). Little is known on the phenomenology and potential short-term prognosis factors of bipolar episodes in this age population. In particular, very few studies examine this issue on inpatients in the European context of free access to care. OBJECTIVE: To describe the phenomenology of acute manic and mixed episodes in hospitalized adolescents and to analyse potential predictive factors associated with clinical improvement at discharge and length of hospitalization. METHODS: A total of 80 subjects, aged 12-20 years, consecutively hospitalized for a manic or mixed episode. Socio-demographic and clinical data were extracted by reviewing patients' charts. We used a multivariate analysis to evaluate short-term outcome predictors. RESULTS: The sample was characterized by severe impairment, high rates of psychotic features (N = 50, 62.5%), a long duration of stay (mean 80.4 days), and an overall good improvement (86% very much or much improved). Thirty-three (41.3%) patients had a history of depressive episodes, 13 (16.3%) had manic or brief psychotic episodes but only 3 (3.7%) had a history of attention deficit/hyperactivity disorders. More manic episodes than mixed episodes were identified in subjects with mental retardation (MR) and in subjects from migrant and/or low socio-economic families. Overall severity and female gender predicted better improvement in GAF scores. Poor insight and the existence of psychotic features predicted longer duration of stay. CONCLUSION: These results suggest that severe manic and mixed episodes in adolescents with BD-I need prolonged inpatient care to improve and that socio-cultural factors and MR should be examined more closely in youth with BD. [ABSTRACT FROM AUTHOR]
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- 2009
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6. Severe challenging behaviors among hospitalized adolescents with autism: What origin?
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Perisse, D.
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- 2012
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7. Medication use in adolescents treated in a French psychiatric setting for acute manic or mixed episode.
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Consoli A, Brunelle J, Bodeau N, Périsse D, Deniau E, Guilé J, and Cohen D
- Abstract
OBJECTIVE: In the absence of recommendations from drug regulatory agencies for most medications to treat severe manic or mixed episode in adolescence, this study aims to (i) describe the pharmacological treatment prescribed in an inpatient setting for acute manic or mixed episodes in adolescents; (ii) determine whether type of episode, duration of stay, improvement, and psychotic features were associated with the nature of the given treatment; (iii) compare the results with evidence-based data. METHOD: From 1993 to 2003, we received 80 subjects, aged 12 to 20 years, consecutively hospitalized for a manic or mixed episode. Socio-demographic, clinical and treatment data were extracted by reviewing patients' charts. Treatment data were available for 75 subjects. RESULTS: Most patients received a combination treatment including mood stabilizer (82.6%), classical antipsychotic (AP) (86.6%) and atypical AP (24%). Despite prolonged hospitalisation (minimum stay = 17 days), 69 (86.2%) patients were scored very much or much improved at discharge. Secondary therapeutic options occurred in 15 subjects because of poor therapeutic response (N=13), severe adverse effects (N=5) or both. Two patients had electroconvulsive therapy as third therapeutic option. Adolescents with psychotic symptoms were significantly more frequently treated by lithium (Fisher exact test: p=0,0052). No other variable was associated with treatment. CONCLUSIONS: This study reported on patterns of medication use that mainly followed treatment recommendations and evidence-based data existing in adults. However, the presence of psychotic features appeared to favour the use of lithium in this French sample. [ABSTRACT FROM AUTHOR]
- Published
- 2009
8. Hypomorphic variants of cationic amino acid transporter 3 in males with autism spectrum disorders.
- Author
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Nava C, Rupp J, Boissel JP, Mignot C, Rastetter A, Amiet C, Jacquette A, Dupuits C, Bouteiller D, Keren B, Ruberg M, Faudet A, Doummar D, Philippe A, Périsse D, Laurent C, Lebrun N, Guillemot V, Chelly J, Cohen D, Héron D, Brice A, Closs EI, and Depienne C
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- Amino Acid Sequence, Animals, Biotinylation, Brain metabolism, Cell Membrane metabolism, Child, Chromosomes, Human, X genetics, Epilepsy complications, Epilepsy genetics, Gene Frequency, Humans, Loss of Heterozygosity, Male, Molecular Conformation, Molecular Sequence Data, Mutation, Mutation, Missense, Oocytes metabolism, Pedigree, Phenotype, Xenopus laevis, Amino Acid Transport Systems, Basic genetics, Autism Spectrum Disorder genetics
- Abstract
Cationic amino acid transporters (CATs) mediate the entry of L-type cationic amino acids (arginine, ornithine and lysine) into the cells including neurons. CAT-3, encoded by the SLC7A3 gene on chromosome X, is one of the three CATs present in the human genome, with selective expression in brain. SLC7A3 is highly intolerant to variation in humans, as attested by the low frequency of deleterious variants in available databases, but the impact on variants in this gene in humans remains undefined. In this study, we identified a missense variant in SLC7A3, encoding the CAT-3 cationic amino acid transporter, on chromosome X by exome sequencing in two brothers with autism spectrum disorder (ASD). We then sequenced the SLC7A3 coding sequence in 148 male patients with ASD and identified three additional rare missense variants in unrelated patients. Functional analyses of the mutant transporters showed that two of the four identified variants cause severe or moderate loss of CAT-3 function due to altered protein stability or abnormal trafficking to the plasma membrane. The patient with the most deleterious SLC7A3 variant had high-functioning autism and epilepsy, and also carries a de novo 16p11.2 duplication possibly contributing to his phenotype. This study shows that rare hypomorphic variants of SLC7A3 exist in male individuals and suggest that SLC7A3 variants possibly contribute to the etiology of ASD in male subjects in association with other genetic factors.
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- 2015
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9. Acute behavioral crises in psychiatric inpatients with autism spectrum disorder (ASD): recognition of concomitant medical or non-ASD psychiatric conditions predicts enhanced improvement.
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Guinchat V, Cravero C, Diaz L, Périsse D, Xavier J, Amiet C, Gourfinkel-An I, Bodeau N, Wachtel L, Cohen D, and Consoli A
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- Acute Disease, Adjustment Disorders epidemiology, Adjustment Disorders psychology, Adjustment Disorders therapy, Adolescent, Bipolar Disorder epidemiology, Bipolar Disorder psychology, Bipolar Disorder therapy, Catatonia epidemiology, Catatonia therapy, Child Development Disorders, Pervasive epidemiology, Child Development Disorders, Pervasive therapy, Comorbidity, Depressive Disorder, Major epidemiology, Depressive Disorder, Major psychology, Depressive Disorder, Major therapy, Epilepsy epidemiology, Female, France epidemiology, Hospitalization, Humans, Male, Mental Disorders epidemiology, Pain epidemiology, Prospective Studies, Retrospective Studies, Risk Factors, Schizophrenia epidemiology, Schizophrenia therapy, Schizophrenic Psychology, Severity of Illness Index, Young Adult, Catatonia psychology, Child Development Disorders, Pervasive psychology, Epilepsy psychology, Hospital Units, Mental Disorders psychology, Pain psychology
- Abstract
During adolescence, some individuals with autism spectrum disorder (ASD) engage in severe challenging behaviors, such as aggression, self-injury, disruption, agitation and tantrums. We aimed to assess risk factors associated with very acute behavioral crises in adolescents with ASD admitted to a dedicated neurobehavioral unit. We included retrospectively in 2008 and 2009 29 adolescents and young adults with ASD hospitalized for severe challenging behaviors and proposed a guideline (Perisse et al., 2010) that we applied prospectively for 29 patients recruited for the same indications between 2010 and 2012. In total, 58 patients were admitted (n=70 hospitalizations, mean age=15.66 (±4.07) years, 76% male). We systematically collected data describing socio-demographic characteristics, clinical variables (severity, presence of language, cognitive level), comorbid organic conditions, etiologic diagnosis of the episode, and treatments. We explored predictors of Global Assessment Functioning Scale (GAFS) score and duration of hospitalization at discharge. All but 2 patients exhibited severe autistic symptoms and intellectual disability (ID), and two-thirds had no functional verbal language. During the inpatient stay (mean=84.3 (±94.9) days), patients doubled on average their GAFS scores (mean=17.66 (±9.05) at admission vs. mean=31.4 (±9.48) at discharge). Most common etiologies for acute behavioral crises were organic causes [n=20 (28%), including epilepsy: n=10 (14%) and painful medical conditions: n=10 (14%)], environmental causes [n=17 (25%) including lack of treatment: n=11 (16%) and adjustment disorder: n=6 (9%)], and non-ASD psychiatric condition [n=33 (48%) including catatonia: n=5 (7%), major depressive episode: n=6 (9%), bipolar disorder: n=4 (6%), schizophrenia: n=6 (9%), other/unknown diagnosis: n=12 (17%)]. We found no influence of age, gender, socio-economic status, migration, level of ID, or history of seizure on improvement of GAFS score at discharge. Severity of autism at admission was the only negative predictor (p<.001). Painful medical conditions (p=.04), non-ASD psychiatric diagnoses (p=.001), prior usage of specialized ASD care programs (p=.004), functional language (p=.007), as well as a higher number of challenging behaviors upon admission (p=.001) were associated with higher GAFS scores at discharge. Clinical severity at admission, based on the number of challenging behaviors (r=.35, p=.003) and GAFS score (r=-.32, p=.008) was correlated with a longer inpatient stay. Longer hospitalization was however correlated (r=.27, p=.03) with higher GAFS score at discharge even after adjustment for confounding factors. Challenging behaviors among adolescents with ASD may stem from diverse risk factors, including environmental problems, comorbid acute psychiatric conditions, or somatic illness such as epilepsy or acute pain. The management of these behavioral challenges requires a unified, multidisciplinary approach., (Copyright © 2014 Elsevier Ltd. All rights reserved.)
- Published
- 2015
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10. Prospective diagnostic analysis of copy number variants using SNP microarrays in individuals with autism spectrum disorders.
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Nava C, Keren B, Mignot C, Rastetter A, Chantot-Bastaraud S, Faudet A, Fonteneau E, Amiet C, Laurent C, Jacquette A, Whalen S, Afenjar A, Périsse D, Doummar D, Dorison N, Leboyer M, Siffroi JP, Cohen D, Brice A, Héron D, and Depienne C
- Subjects
- Adolescent, Child, Child Development Disorders, Pervasive etiology, Child Development Disorders, Pervasive pathology, Child, Preschool, Chromosomes, Human, Pair 5 genetics, Comparative Genomic Hybridization, Cri-du-Chat Syndrome genetics, DNA Methylation genetics, Female, Genetic Association Studies, Genotype, Humans, Infant, Male, Oligonucleotide Array Sequence Analysis methods, Trisomy genetics, Child Development Disorders, Pervasive genetics, Chromosomes, Human, Pair 15 genetics, DNA Copy Number Variations genetics, Polymorphism, Single Nucleotide genetics
- Abstract
Copy number variants (CNVs) have repeatedly been found to cause or predispose to autism spectrum disorders (ASDs). For diagnostic purposes, we screened 194 individuals with ASDs for CNVs using Illumina SNP arrays. In several probands, we also analyzed candidate genes located in inherited deletions to unmask autosomal recessive variants. Three CNVs, a de novo triplication of chromosome 15q11-q12 of paternal origin, a deletion on chromosome 9p24 and a de novo 3q29 deletion, were identified as the cause of the disorder in one individual each. An autosomal recessive cause was considered possible in two patients: a homozygous 1p31.1 deletion encompassing PTGER3 and a deletion of the entire DOCK10 gene associated with a rare hemizygous missense variant. We also identified multiple private or recurrent CNVs, the majority of which were inherited from asymptomatic parents. Although highly penetrant CNVs or variants inherited in an autosomal recessive manner were detected in rare cases, our results mainly support the hypothesis that most CNVs contribute to ASDs in association with other CNVs or point variants located elsewhere in the genome. Identification of these genetic interactions in individuals with ASDs constitutes a formidable challenge.
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- 2014
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11. Analysis of the chromosome X exome in patients with autism spectrum disorders identified novel candidate genes, including TMLHE.
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Nava C, Lamari F, Héron D, Mignot C, Rastetter A, Keren B, Cohen D, Faudet A, Bouteiller D, Gilleron M, Jacquette A, Whalen S, Afenjar A, Périsse D, Laurent C, Dupuits C, Gautier C, Gérard M, Huguet G, Caillet S, Leheup B, Leboyer M, Gillberg C, Delorme R, Bourgeron T, Brice A, and Depienne C
- Subjects
- Adult, Case-Control Studies, Child, Cohort Studies, Exome, Family, Female, Genetic Association Studies, Humans, Male, Mutation, Polymerase Chain Reaction, Sex Distribution, Child Development Disorders, Pervasive genetics, Chromosomes, Human, X genetics, Genes, X-Linked, Mixed Function Oxygenases genetics
- Abstract
The striking excess of affected males in autism spectrum disorders (ASD) suggests that genes located on chromosome X contribute to the etiology of these disorders. To identify new X-linked genes associated with ASD, we analyzed the entire chromosome X exome by next-generation sequencing in 12 unrelated families with two affected males. Thirty-six possibly deleterious variants in 33 candidate genes were found, including PHF8 and HUWE1, previously implicated in intellectual disability (ID). A nonsense mutation in TMLHE, which encodes the ɛ-N-trimethyllysine hydroxylase catalyzing the first step of carnitine biosynthesis, was identified in two brothers with autism and ID. By screening the TMLHE coding sequence in 501 male patients with ASD, we identified two additional missense substitutions not found in controls and not reported in databases. Functional analyses confirmed that the mutations were associated with a loss-of-function and led to an increase in trimethyllysine, the precursor of carnitine biosynthesis, in the plasma of patients. This study supports the hypothesis that rare variants on the X chromosome are involved in the etiology of ASD and contribute to the sex-ratio disequilibrium.
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- 2012
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12. Association of adolescent catatonia with increased mortality and morbidity: evidence from a prospective follow-up study.
- Author
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Cornic F, Consoli A, Tanguy ML, Bonnot O, Périsse D, Tordjman S, Laurent C, and Cohen D
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- Adolescent, Adult, Catatonia diagnosis, Female, Follow-Up Studies, Humans, Male, Morbidity, Prospective Studies, Psychiatric Status Rating Scales, Psychometrics, Retrospective Studies, Risk Factors, Severity of Illness Index, Sex Factors, Socioeconomic Factors, Young Adult, Catatonia epidemiology, Catatonia mortality
- Abstract
This paper examined outcomes among youth with catatonic syndrome and determined whether the characteristics suggesting the relevance of chronic catatonic schizophrenia (CCS) at index episode remained stable at follow-up. From 1993 to 2004, 35 individuals aged 12 to 18 years were prospectively admitted for management of catatonic syndrome and followed up after discharge. Mean duration from discharge to follow-up was 3.9 years (range 1-10). Four patients were lost to follow-up. Among the remaining 31 subjects (mean age=19.5 years, range 15-26), life-time diagnosis using the Diagnostic Interview for Genetic Studies was unchanged in 28 patients, and included schizophrenia (all subtypes; N=20), major depressive episode (N=5), bipolar disorder type I (N=4) and brief psychotic episode (N=2). Mortality (all-cause Standardized Mortality Ratio=6266; 95% CI=1181-18,547) and morbidity were severe, with 3 deaths (including 2 suicides), 6 patients presenting with a causal organic condition and 14 subjects needing continuous psychiatric care. All males in the study (N=8) who had chronic catatonic schizophrenia at the index episode still had chronic catatonic signs at follow-up. Catatonia is one of the most severe psychiatric syndromes in adolescents. It is associated with a 60-fold increased risk of premature death, including suicide, when compared to the general population of same sex and age. This increased risk of premature death remains higher than the one measured in former adolescent psychiatric patients (all-cause SMR=221; 95% CI=156-303; Engqvist and Rydelius, 2006), or in schizophrenia irrespective to age and subtype (all-cause SMR=157; 95% CI=153-160; Harris and Barraclough, 1998).
- Published
- 2009
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13. Clinical relevance of chronic catatonic schizophrenia in children and adolescents: evidence from a prospective naturalistic study.
- Author
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Cohen D, Nicolas JD, Flament MF, Périsse D, Dubos PF, Bonnot O, Speranza M, Graindorge C, Tordjman S, and Mazet P
- Subjects
- Adolescent, Age of Onset, Child, Chronic Disease, Demography, Diagnostic and Statistical Manual of Mental Disorders, Female, Humans, Male, Prospective Studies, Schizophrenia, Catatonic diagnosis, Schizophrenia, Catatonic epidemiology, Severity of Illness Index, Schizophrenia, Catatonic psychology
- Abstract
The paper examines the phenomenology, diagnosis, and course of catatonia in children and adolescents. From 1993 to 2003, 21 boys and 9 girls, aged 12 to 18 years, were admitted for a catatonic syndrome (0.6% of the total inpatient population). Phenomenology and associated diagnoses were similar to those reported in the adult literature but relative frequency differed, with schizophrenia being the most frequent diagnosis. Comparison of patients with schizophrenia (n=17) to those with other diagnoses (n=13) showed that the two groups differed in terms of sex ratio, type of onset and phenomenology of catatonic symptoms, duration of hospitalization, and severity at discharge. Using discriminant function analysis, the combination of three clinical variables--male gender, duration of catatonic episode, and severity at discharge--correctly classified 100% of cases in the schizophrenia group. Catatonia is an infrequent but severe condition in young people, and is usually associated with schizophrenia. There is a need for research in the field of catatonic schizophrenia in adolescents as it appears to be a clinically relevant but understudied subgroup.
- Published
- 2005
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