Publications by authors named "L Jonard"

Article Synopsis
  • HDR syndrome is a rare genetic disorder characterized by hypoparathyroidism, hearing loss, and kidney abnormalities, caused by specific variants in the GATA3 gene.
  • The study reviewed 28 patients and the existing literature, revealing that some conditions typically seen as rare, like genital malformations, are more common than previously thought.
  • The research identified patterns in GATA3 variants and highlighted the importance of early hearing assessments and continuous monitoring of parathyroid function and urinary issues to prevent complications in affected individuals.
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Article Synopsis
  • Cochleovestibular dysfunctions are uncommon and often misdiagnosed, with a specific genetic mutation linked to these conditions.
  • A pathogenic variant in the RIPOR2 gene was found in Tunisian siblings who have severe hearing and balance issues.
  • Unlike the patients, animal models with Ripor2 mutations (like mice and zebrafish) maintain normal vestibular function, highlighting differences in how this mutation affects different species.
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Objectives: Our objective was to reinforce clinical knowledge of hearing impairment in KBG syndrome. KBG syndrome is a rare genetic disorder due to monoallelic pathogenic variations of ANKRD11.The typical phenotype includes facial dysmorphism, costal and spinal malformation and developmental delay.

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Article Synopsis
  • - Childhood hearing impairment can arise from various external factors, not including infections in the middle ear.
  • - Some key causes include conditions affecting the embryo and fetus (embryofoetopathy), meningitis, physical injuries (trauma), harmful effects from medications (drug ototoxicity), and exposure to loud sounds (noise trauma).
  • - Understanding these extrinsic causes is crucial for prevention and treatment strategies in managing hearing loss in children.
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Article Synopsis
  • The study investigates the prevalence of benign paroxysmal positional vertigo (BPPV) in patients with congenital mild to moderate hearing loss linked to deletions of the STRC gene (DFNB16).
  • It was conducted as an observational study involving 64 patients, with 39% diagnosed with BPPV, and a median age of first symptoms being 13 years.
  • The findings suggest a potential connection between BPPV and hearing loss associated with STRC gene deletions, highlighting the importance of informing patients about this risk for better management.
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