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  1. Article ; Online: Developmental and epileptic encephalopathy related to a heterozygous variant of the RHOBTB2 gene: A case report from French Guiana.

    Defo, Antoine / Verloes, Alain / Elenga, Narcisse

    Molecular genetics & genomic medicine

    2022  Volume 10, Issue 6, Page(s) e1929

    Abstract: Here we report a case of developmental and epileptic encephalopathy related to RHOBTB2 gene mutation in a ten-month old infant in French Guiana. Although the 28 previously reported cases had early-onset epilepsy and severe intellectual disability, here ... ...

    Abstract Here we report a case of developmental and epileptic encephalopathy related to RHOBTB2 gene mutation in a ten-month old infant in French Guiana. Although the 28 previously reported cases had early-onset epilepsy and severe intellectual disability, here the reported individual presented with late postnatal onset of microcephaly and the absence of cortical atrophy on MRI. The publication of cases of such a rare form of developmental and epileptic encephalopathy will eventually allow us to better understand the mechanism by which RHOBTB2 misregulation could induce severe and atypical neurological disorders.
    MeSH term(s) Epilepsy/genetics ; Epilepsy, Generalized ; French Guiana ; GTP-Binding Proteins/genetics ; Heterozygote ; Humans ; Infant ; Mutation ; Tumor Suppressor Proteins/genetics
    Chemical Substances RHOBTB2 protein, human ; Tumor Suppressor Proteins ; GTP-Binding Proteins (EC 3.6.1.-)
    Language English
    Publishing date 2022-03-21
    Publishing country United States
    Document type Case Reports ; Letter
    ZDB-ID 2734884-2
    ISSN 2324-9269 ; 2324-9269
    ISSN (online) 2324-9269
    ISSN 2324-9269
    DOI 10.1002/mgg3.1929
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Beyond 'speech delay': Expanding the phenotype of BRPF1-related disorder.

    Morison, Lottie D / Van Reyk, Olivia / Baker, Emma / Ruaud, Lyse / Couque, Nathalie / Verloes, Alain / Amor, David J / Morgan, Angela T

    European journal of medical genetics

    2024  Volume 68, Page(s) 104923

    Abstract: Pathogenic variants in BRPF1 cause intellectual disability, ptosis and facial dysmorphism. Speech and language deficits have been identified as a manifestation of BRPF1-related disorder but have not been systematically characterized. We provide a ... ...

    Abstract Pathogenic variants in BRPF1 cause intellectual disability, ptosis and facial dysmorphism. Speech and language deficits have been identified as a manifestation of BRPF1-related disorder but have not been systematically characterized. We provide a comprehensive delineation of speech and language abilities in BRPF1-related disorder and expand the phenotype. Speech and language, and health and medical history were assessed in 15 participants (male = 10, median age = 7 years 4 months) with 14 BRPF1 variants. Language disorders were common (11/12), and most had mild to moderate deficits across receptive, expressive, written, and social-pragmatic domains. Speech disorders were frequent (7/9), including phonological delay (6/9) and disorder (3/9), and childhood apraxia of speech (3/9). All those tested for cognitive abilities had a FSIQ ≥70 (4/4). Participants had vision impairment (13/15), fine (8/15) and gross motor delay (10/15) which often resolved in later childhood, infant feeding impairment (8/15), and infant hypotonia (9/15). We have implicated BRPF1-related disorder as causative for speech and language disorder, including childhood apraxia of speech. Adaptive behavior and cognition were strengths when compared to other monogenic neurodevelopmental chromatin-related disorders. The universal involvement of speech and language impairment is noteable, relative to the high degree of phenotypic variability in BRPF1-related disorder.
    MeSH term(s) Child ; Humans ; Male ; Adaptor Proteins, Signal Transducing/genetics ; Apraxias/genetics ; Bromodomain Containing Proteins ; DNA-Binding Proteins/genetics ; Intellectual Disability/genetics ; Language Development Disorders/genetics ; Phenotype ; Speech ; Speech Disorders ; Female
    Chemical Substances Adaptor Proteins, Signal Transducing ; Bromodomain Containing Proteins ; BRPF1 protein, human ; DNA-Binding Proteins
    Language English
    Publishing date 2024-02-10
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2184135-4
    ISSN 1878-0849 ; 1769-7212
    ISSN (online) 1878-0849
    ISSN 1769-7212
    DOI 10.1016/j.ejmg.2024.104923
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  3. Article ; Online: PACS2 pathogenic variant associated with malformation of cortical development and epilepsy.

    Checri, Rayann / Dozières-Puyravel, Blandine / Elmaleh-Bergès, Monique / Verloes, Alain / Auvin, Stéphane

    Epileptic disorders : international epilepsy journal with videotape

    2023  Volume 26, Issue 2, Page(s) 215–218

    Abstract: PACS2 pathogenic variants are associated with an autosomal dominant syndrome (OMIM DEE66), associating developmental and epileptic encephalopathy, facial dysmorphism, and cerebellar dysgenesis. However, no malformation of cortical development has been ... ...

    Abstract PACS2 pathogenic variants are associated with an autosomal dominant syndrome (OMIM DEE66), associating developmental and epileptic encephalopathy, facial dysmorphism, and cerebellar dysgenesis. However, no malformation of cortical development has been reported yet. We report here a seven-year-old child with a history of infantile epileptic spasm syndrome and a right insular polymicrogyria and pachygyria due to de novo PACS2 recurrent mutation c.625G>A (p.Glu209Lys). Our observation raises the question of the role of PACS2 in the cortical development. It also reminds the importance of cerebellar anomalies in the recognition of PACS-related DEE.
    MeSH term(s) Child ; Humans ; Epilepsy/genetics ; Epilepsy, Generalized ; Mutation ; Phenotype ; Polymicrogyria/genetics ; Syndrome ; Vesicular Transport Proteins/genetics
    Chemical Substances PACS2 protein, human ; Vesicular Transport Proteins
    Language English
    Publishing date 2023-12-15
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 2086797-9
    ISSN 1950-6945 ; 1294-9361
    ISSN (online) 1950-6945
    ISSN 1294-9361
    DOI 10.1002/epd2.20184
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  4. Article ; Online: New description of an MRPS2 homozygous patient: Further features to help expend the phenotype.

    Papadopoulos, Thalia / Gaignard, Pauline / Schiff, Manuel / Rio, Marlène / Karall, Daniela / Legendre, Adrien / Verloes, Alain / Ruaud, Lyse

    European journal of medical genetics

    2023  Volume 67, Page(s) 104889

    Abstract: Mutated mito-ribosomal protein S2 (MRPS2) was already described in only three subjects, two with sensorineural hearing impairment, mild developmental delay, hypoglycemia, lactic acidemia and combined oxidative phosphorylation system deficiency and ... ...

    Abstract Mutated mito-ribosomal protein S2 (MRPS2) was already described in only three subjects, two with sensorineural hearing impairment, mild developmental delay, hypoglycemia, lactic acidemia and combined oxidative phosphorylation system deficiency and another, recently, presenting with a less severe phenotype. In order to expand the phenotype, we describe a new MRPS2 homozygous subject who shows particular features which have not yet been reported: initial microcephaly, joint hypermobility and autistic features.
    MeSH term(s) Humans ; Hearing Loss, Sensorineural/genetics ; Microcephaly/genetics ; Phenotype ; Ribosomal Proteins/genetics
    Chemical Substances ribosomal protein S2 ; Ribosomal Proteins
    Language English
    Publishing date 2023-11-27
    Publishing country Netherlands
    Document type Case Reports ; Journal Article
    ZDB-ID 2184135-4
    ISSN 1878-0849 ; 1769-7212
    ISSN (online) 1878-0849
    ISSN 1769-7212
    DOI 10.1016/j.ejmg.2023.104889
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  5. Article ; Online: Bloom syndrome in children: unusual case of early onset lung damage.

    Ajmi, Houda / Trabelsi, Ines / Rjiba, Khouloud / Mabrouk, Sameh / Zouari, Noura / Mougou-Zerelli, Soumaya / Verloes, Alain / Abroug, Saoussan

    Clinical dysmorphology

    2023  Volume 32, Issue 2, Page(s) 95–96

    MeSH term(s) Child ; Humans ; Bloom Syndrome ; Lung/pathology
    Language English
    Publishing date 2023-02-17
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 1121482-x
    ISSN 1473-5717 ; 0962-8827
    ISSN (online) 1473-5717
    ISSN 0962-8827
    DOI 10.1097/MCD.0000000000000448
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  6. Article: Exploration raisonnée d'un handicap mental.

    Verloes, A

    Archives de pediatrie : organe officiel de la Societe francaise de pediatrie

    2008  Volume 15, Issue 5, Page(s) 708–710

    Title translation Sensible guidelines for the evaluation of mental retardation.
    MeSH term(s) Brain/pathology ; Child ; Fragile X Syndrome ; Humans ; In Situ Hybridization, Fluorescence ; Intellectual Disability/diagnosis ; Intellectual Disability/genetics ; Magnetic Resonance Imaging ; Oligonucleotide Array Sequence Analysis ; Telomere/genetics
    Language French
    Publishing date 2008-06
    Publishing country France
    Document type Journal Article
    ZDB-ID 1181947-9
    ISSN 1769-664X ; 0929-693X
    ISSN (online) 1769-664X
    ISSN 0929-693X
    DOI 10.1016/S0929-693X(08)71883-9
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  7. Article: Le chromosome X.

    Verloes, Alain

    Presse medicale (Paris, France : 1983)

    2007  Volume 36 Spec No 1, Page(s) 1S7–13

    Abstract: X and Y chromosomes hove evolved from a common proto-chromosome, 300 million years ago. They shore 29 genes, scottered in two homologous regions (PAR1 and PAR2). Ten per cent of humon genetic diseases result from mutations of X-linked genes. Disorders ... ...

    Title translation X chromosome.
    Abstract X and Y chromosomes hove evolved from a common proto-chromosome, 300 million years ago. They shore 29 genes, scottered in two homologous regions (PAR1 and PAR2). Ten per cent of humon genetic diseases result from mutations of X-linked genes. Disorders with mental handicap, muscle involvement or infertility ore overrepresented. X chromosome inactivation is a complex epigenetic process. This mechanism keeps a single transcriptionally active chromosome per cell. At fecondotion, in XX embryo, the active X is always the maternal one, with the paternal X is kept inactive. At the time of implantation of a XX egg, inactivation is erased and reinstalled at random in the embryo, except in the germinal cell line, where both X remain inactive, and in placenta, where only the maternal X is expressed. Skewed inactivation of a X in a woman may indicate the presence of a mutated gene on the inactive X. Contrasting with outosomal disorders, the difference between recessivity and dominance is often relative, as heterozygous women con disclose a phenotype comparable to affected males, as a result of random X inactivation.
    MeSH term(s) Chromosomes, Human, X ; Female ; Genetic Diseases, X-Linked/genetics ; Humans ; X Chromosome Inactivation
    Language French
    Publishing date 2007-03
    Publishing country France
    Document type English Abstract ; Journal Article ; Review
    ZDB-ID 120943-7
    ISSN 2213-0276 ; 0755-4982 ; 0032-7867 ; 0301-1518
    ISSN (online) 2213-0276
    ISSN 0755-4982 ; 0032-7867 ; 0301-1518
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  8. Article ; Online: De novo NUF2 variant in a novel inherited bone marrow failure syndrome including microcephaly and renal hypoplasia.

    Vial, Yoann / Lainey, Elodie / Leblanc, Thierry / Baudouin, Véronique / Dourthe, Marie Emilie / Gressens, Pierre / Verloes, Alain / Cavé, Hélène / Drunat, Séverine

    British journal of haematology

    2022  Volume 199, Issue 5, Page(s) 739–743

    Abstract: In a patient with severe microcephaly, congenital bone marrow failure, growth retardation, and renal hypoplasia, we identified a likely pathogenic variant in NUF2 that impairs the cell's ability to properly complete mitosis. Interestingly, these clinical ...

    Abstract In a patient with severe microcephaly, congenital bone marrow failure, growth retardation, and renal hypoplasia, we identified a likely pathogenic variant in NUF2 that impairs the cell's ability to properly complete mitosis. Interestingly, these clinical features as well as the observed cellular alterations are highly reminiscent of what is reported in Fanconi Anaemia supporting a unifying causal role of the variant in the disease. This case provides the first evidence that a kinetochore defect, previously associated with microcephaly, can be responsible for an inherited bone marrow failure syndrome, highlighting the unique pathological link between neurogenesis and haematopoiesis.
    MeSH term(s) Humans ; Cell Cycle Proteins ; Congenital Bone Marrow Failure Syndromes ; Fanconi Anemia ; Microcephaly/genetics
    Chemical Substances Cell Cycle Proteins ; NUF2 protein, human
    Language English
    Publishing date 2022-09-16
    Publishing country England
    Document type Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80077-6
    ISSN 1365-2141 ; 0007-1048
    ISSN (online) 1365-2141
    ISSN 0007-1048
    DOI 10.1111/bjh.18461
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  9. Article ; Online: Faut-il envisager le dépistage néonatal de la maladie de Pompe ?

    Lacombe, D / Verloes, A

    Archives de pediatrie : organe officiel de la Societe francaise de pediatrie

    2014  Volume 21, Issue 6, Page(s) 561–563

    Title translation Should we consider newborn screening for Pompe disease?.
    MeSH term(s) Early Diagnosis ; Enzyme Replacement Therapy ; France/epidemiology ; Glycogen Storage Disease Type II/diagnosis ; Glycogen Storage Disease Type II/epidemiology ; Glycogen Storage Disease Type II/genetics ; Glycogen Storage Disease Type II/therapy ; Humans ; Infant, Newborn ; Neonatal Screening ; Prevalence
    Language French
    Publishing date 2014-06
    Publishing country France
    Document type Editorial
    ZDB-ID 1181947-9
    ISSN 1769-664X ; 0929-693X
    ISSN (online) 1769-664X
    ISSN 0929-693X
    DOI 10.1016/j.arcped.2014.03.013
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  10. Article: Updated diagnostic criteria for CHARGE syndrome: a proposal.

    Verloes, Alain

    American journal of medical genetics. Part A

    2005  Volume 133A, Issue 3, Page(s) 306–308

    MeSH term(s) Abnormalities, Multiple/diagnosis ; Abnormalities, Multiple/pathology ; Abnormalities, Multiple/physiopathology ; Choanal Atresia/pathology ; Coloboma/pathology ; Deafness/pathology ; Ear/abnormalities ; Genitalia/abnormalities ; Growth Disorders/pathology ; Heart Defects, Congenital/pathology ; Humans ; Practice Guidelines as Topic ; Syndrome
    Language English
    Publishing date 2005-01-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2108614-X
    ISSN 1552-4825
    ISSN 1552-4825
    DOI 10.1002/ajmg.a.30559
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