Nueva variante patogénica en el gen SOX9 relacionada con la displasia campomélica

Authors

  • Victor Hugo Guapi nauñay . Hospital Gineco Obstétrico Pediátrico de Nueva Aurora Luz Elena Arismendi
  • Gabriela Nataly Lima Berru Hospital Gineco Obstétrico Pediátrico de Nueva Aurora Luz Elena Arismendi
  • Angelo Napoleon Padilla Medina Hospital Gineco Obstétrico Pediátrico de Nueva Aurora Luz Elena Arismendi
  • Fabián David Porras Borja Centro Especializado de Genética Médica-CEGEMED

DOI:

https://doi.org/10.62430/rtb20242221785

Keywords:

Campomelic displasia , chondrogenesis, missense mutation , Pierre Robin síndrome, SOX9 transcription factor

Abstract

Campomelic dysplasia is a skeletal dysplasia, characterized by the Pierre Robin sequence with cleft palate, associated with bowing and shortening of the long bones. This research aimed to report a variant with a missense change in the SOX9 gene that was previously described as uncertain meaning, in an infant with clinical-radiological characteristics for campomelic dysplasia. Male patient seven days old, what was evaluated by clinical genetics, who presented the physical examination Robin sequence with cleft soft palate, lower extremities with dimpled skin over curved long bones, with brachydactyly and equinovarus feet. The radiographs showed a narrow chest with 11 pairs of ribs, hypoplasia of the scapulae, non-mineralized hypoplastic pedicles of the thoracic vertebrae, anterolateral bowing (at the junction of the proximal 1/3 and the distal 2/3) in the femurs, tibias with slight anterior arching. The bones of the upper extremities are not arched. Given this circumstancencia proposes sequencing study, whole exome tha identiphies in heterozygosity the missense type variant in exon 1 of the SOX9 gene (NM_000346.4), c.347C>T, p.(Ala116Val), which is related to campomelic dysplasia; while the cariotypewas46, XY. At control, at five months old in the patient persist onto anthropometry below the third percentile according to WHO growth curves, and with he antecedent of two respiratory conditions. The identified variant could to be considered pathogenic, since the infant presented mostly meets the clinical-radiological criterio described for the campomelic dysplasia.

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Author Biographies

Victor Hugo Guapi nauñay, . Hospital Gineco Obstétrico Pediátrico de Nueva Aurora Luz Elena Arismendi

-MÉDICO GENERAL (ESPOCH)
-DIPLOMA SUPERIOR EN ADMINISTRACIÓN DE LOS SERVICIOS HOSPITALARIOS (UNIANDES)
-ESPECIALISTA EN ADMINISTRACION Y ORGANIZACIÓN DE HOSPITALES (UNIANDES)
-MAGÍSTER EN GESTIÓN DE LOS SERVICIOS HOSPITALARIOS (UNIANDES)
-MAESTER EN ASESORAMIENTO GENÉTICO (UNIVERSIDAD DE CIENCIAS MÉDICAS DE LA HABANA)
-ESPECIALISTA EN GENÉTICA CLÍNICA (UNIVERSIDAD DE CIENCIAS MÉDICAS DE LA HABANA)

Gabriela Nataly Lima Berru, Hospital Gineco Obstétrico Pediátrico de Nueva Aurora Luz Elena Arismendi

-MEDICA GENERAL (UNIVERSIDAD NACIONAL DE
LOJA)
- DIPLOMA SUPERIOR EN GERENCIA DE SERVICIOS DESALUD (UNIVERSIDAD NACIONAL DE LOJA)
- ESPECIALISTA EN GINECOLOGIA Y OBSTETRICIA
(PONTIFICIA UNIVERSIDAD CATOLICA DEL ECUADOR)

Angelo Napoleon Padilla Medina, Hospital Gineco Obstétrico Pediátrico de Nueva Aurora Luz Elena Arismendi

-MÉDICO CIRUJANO (UNIVERSIDAD NACIONAL EXPERIMENTAL FRANCISCO DE MIRANDA)

Fabián David Porras Borja, Centro Especializado de Genética Médica-CEGEMED

-LICENCIADO EN CIENCIAS BIOLOGICAS Y AMBIENTALES (UNIVERSIDAD CENTRAL DEL ECUADOR)

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Published

2024-08-13

How to Cite

Guapi nauñay, V. H., Lima Berru, G. N., Padilla Medina, A. N. ., & Porras Borja, F. D. (2024). Nueva variante patogénica en el gen SOX9 relacionada con la displasia campomélica. The Biologist, 22(2). https://doi.org/10.62430/rtb20242221785