Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 Dec;182(12):2939-2950.
doi: 10.1002/ajmg.a.61888. Epub 2020 Sep 27.

Rubinstein-Taybi syndrome in diverse populations

Affiliations

Rubinstein-Taybi syndrome in diverse populations

Cedrik Tekendo-Ngongang et al. Am J Med Genet A. 2020 Dec.

Abstract

Rubinstein-Taybi syndrome (RSTS) is an autosomal dominant disorder, caused by loss-of-function variants in CREBBP or EP300. Affected individuals present with distinctive craniofacial features, broad thumbs and/or halluces, and intellectual disability. RSTS phenotype has been well characterized in individuals of European descent but not in other populations. In this study, individuals from diverse populations with RSTS were assessed by clinical examination and facial analysis technology. Clinical data of 38 individuals from 14 different countries were analyzed. The median age was 7 years (age range: 7 months to 47 years), and 63% were females. The most common phenotypic features in all population groups included broad thumbs and/or halluces in 97%, convex nasal ridge in 94%, and arched eyebrows in 92%. Face images of 87 individuals with RSTS (age range: 2 months to 47 years) were collected for evaluation using facial analysis technology. We compared images from 82 individuals with RSTS against 82 age- and sex-matched controls and obtained an area under the receiver operating characteristic curve (AUC) of 0.99 (p < .001), demonstrating excellent discrimination efficacy. The discrimination was, however, poor in the African group (AUC: 0.79; p = .145). Individuals with EP300 variants were more effectively discriminated (AUC: 0.95) compared with those with CREBBP variants (AUC: 0.93). This study shows that clinical examination combined with facial analysis technology may enable earlier and improved diagnosis of RSTS in diverse populations.

Keywords: Africa; Asia; Latin America; Middle East; Rubinstein-Taybi syndrome; facial analysis technology.

PubMed Disclaimer

References

REFERENCES

    1. Agarwal, R., Aggarwal, R., Kabra, M., & Deorari, A. K. (2002). Dandy-Walker malformation in Rubinstein-Taybi syndrome: A rare association. Clinical Dysmorphology, 11(3), 223-224. https://doi.org/10.1097/00019605-200207000-00017
    1. Balci, S., Bostanci, S., Ekmekci, P., Cebeci, I., Bokesoy, I., Bartsch, O., & Gurgey, E. (2004). A 15-year-old boy with Rubinstiein-Taybi syndrome associated with severe congenital malalignment of the toenails. Pediatric Dermatology, 21(1), 44-47. https://doi.org/10.1111/j.0736-8046.2004.21108.x
    1. Balci, S., Ergün, M. A., Yüksel-Konuk, E. B., & Bartsch, O. (2008). Rubinstein-Taybi syndrome with normal FISH result and CREBBP gene analysis: A case report. Turkish Journal of Pediatrics, 50(3), 265-268.
    1. Bartsch, O., Labonte, J., Albrecht, B., Wieczorek, D., Lechno, S., Zechner, U., & Haaf, T. (2010). Two patients with EP300 mutations and facial dysmorphism different from the classic Rubinstein-Taybi syndrome. American Journal of Medical Genetics, Part A, 152(1), 181-184. https://doi.org/10.1002/ajmg.a.33153
    1. Bartsch, O., Wagner, A., Hinkel, G. K., Krebs, P., Stumm, M., Schmalenberger, B., … Majewski, F. (1999). FISH studies in 45 patients with Rubinstein-Taybi syndrome: Deletions associated with polysplenia, hypoplastic left heart and death in infancy. European Journal of Human Genetics, 7(7), 748-756. https://doi.org/10.1038/sj.ejhg.5200378

Publication types

MeSH terms

Substances

LinkOut - more resources