We report on a young female patient with the clinical features of blepharophimosis-ptosis-epicanthus inversus syndrome (BPES, OMIM 110100) and a balanced chromosome translocation 46, XX, t(2;3)(q33;q23)dn.BPES is a rare autosomal dominant congenital disorder characterized by the eponymous oculo-facial features that are, in female patients, associated either with (type 1 BPES) or without (type 2 BPES) premature ovarian failure. Both types of BPES are caused by heterozygous mutations in the FOXL2 gene, which is located in chromosome band 3q23. Chromosome aberrations such as balanced rearrangements have only rarely been observed in BPES patients but can provide valuable information about regulatory regions of FOXL2. The translocation in this patient broadens our knowledge of pathogenic mechanisms in BPES and highlights the importance of conventional cytogenetic investigations in patients with negative results of FOXL2 mutation screening as a prerequisite for optimal management and genetic counseling.
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http://dx.doi.org/10.1080/13816810701867615 | DOI Listing |
Front Genet
April 2024
The Department of Facial and Neck Plastic Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
[This corrects the article DOI: 10.3389/fgene.2024.
View Article and Find Full Text PDFOrbit
March 2024
Ophthalmic Plastic Surgery Department, Quirón Teknon Hospital, Barcelona, Spain.
Purpose: This study aims to describe a novel approach to medial epicanthoplasty in patients with blepharophimosis-ptosis-epicanthus inversus syndrome (BPES) and evaluate the surgical outcome of this technique.
Methods: A retrospective, noncomparative, interventional case series involving 22 BPES patients who underwent medial epicanthoplasty using the Lambda-Double-Fixation technique (LDFT) performed by a single surgeon. Pre- and postoperative measurements of inner intercanthal distance (DIC) and horizontal palpebral fissure (HPFL) were recorded.
Front Genet
February 2024
The Department of Facial and Neck Plastic Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Blepharophimosis, ptosis, and epicanthus inversus syndrome (BPES) is a rare inherited disorder. This study was aimed to identify and functionally validate variants in two Chinese families with BPES. The proband and his family members were subjected to whole-exome sequencing to identify disease-associated variants.
View Article and Find Full Text PDFJ Craniofac Surg
February 2024
Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.
Blepharophimosis-ptosis-epicanthus inversus syndrome (BPES) is a relatively uncommon autosomal-dominant genetic disorder, primarily attributed to mutations in the forkhead box L2 (FOXL2) gene. Albeit the involvement of protein-coding regions of FOXL2 has been observed in the majority of BPES cases, whether deficiencies in regulatory elements lead to the pathogenesis remains poorly understood. Herein, an autosomal-dominant BPES type II family was included.
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