Using exome analysis as a tool for genetics acquaintance in a psychiatry residence program

Authors

  • Aldo Ferreira Castello Branco Vilar
  • Danyllo Felipe de Oliveira
  • Jose Brasileiro Dourado Junior
  • Mayana Zatz
  • João Ricardo Mendes de Oliveira

DOI:

https://doi.org/10.34119/bjhrv7n2-017

Keywords:

genetics/genomics, schizophrenia spectrum and other psychotic disorders, education, antipsychotics

Abstract

Objective: In this paper, a residency program at a Brazilian University Hospital shares its experience with a genetic screening test during the investigation of an inpatient with schizophrenia features. Method: A whole exome sequencing study investigation of a clozapine-refractory patient with schizophrenia served as a facilitator for mastering skills in genetics. Results: During the hospitalization of a 26-year-old patient with clozapine-refractory schizophrenia, the medical residency team noted syndromic features, such as retrognathia, large ear pinnae, pectus excavatum, and a longer wingspan relative to height. These findings led to an interest in genetic evaluation using exome sequencing. The exam showed variations in TMEM106B, IRF2BPL, and ALKBH8, leading to the hypothesis of polygenic heritage. The variations found are previously linked to a wide variety of neuropsychiatric syndromes. Conclusions: Clinical practice in modern psychiatry demands deep knowledge in genetics as genetic and pharmacogenetic tests become more accessible. Genetic training is imperative for the 21st-century psychiatric resident so that one can critically assess this field of knowledge. In this paper, a residency program at a Brazilian University Hospital shares its experience in genetics learning.

References

Cunha CNA, Pacheco AV, Robbiati BM, Amaral GM, Carvalho LOB. Uma revisão abrangente dos fatores genéticos e ambientais no desenvolvimento de transtornos do Espectro Autista. Braz J Health Rev. 2023 Oct 6;6(5):24190-24199.Publishing LLC. http://dx.doi.org/10.34119/bjhrv6n5-469.

Laurini LL, Andrade MLS, Karpejany NRAA, Araújo LLS, Carvalho ARB, Noleto GS, Portela DMMC. Análise genética de pacientes com doença de Parkinson de início precoce em um centro especializado. Braz J Health Rev. 2023 Nov 16;6(6):28216-28233.

Besterman Aaeron, et al. 21st-Century Genetics in Psychiatric Residency Training. Jama Psychiatry. 2019 Mar 01;73(3):231.

Feng Tuancheng, et al. Physiological and pathological functions of TMEM106B: a gene associated with brain aging and multiple brain disorders. Acta Neuropathologica. 2021 Jan 01;141(3):327-339.

Doyle James, et al. TMEM106B, an unexpected point of contact between FTD, ageing and a hypomyelination disorder. Brain. 2020 Jun 01;143(6):1628-1631.

Shelkowitz Emily, et al. IRF2BPL gene mutation: expanding on neurologic phenotypes. American Journal Of Medical Genetics Part A. 2019 Aug 20;179(11):2263-2271.

Monies Dorota, et al. Recessive Truncating Mutations in ALKBH8 Cause Intellectual Disability and Severe Impairment of Wobble Uridine Modification. The American Journal Of Human Genetics. 2019 Jun 01;104(6):1202-1209.

Downloads

Published

03/04/2024

How to Cite

VILAR, A. F. C. B.; DE OLIVEIRA, D. F.; DOURADO JUNIOR, J. B.; ZATZ, M.; DE OLIVEIRA, J. R. M. Using exome analysis as a tool for genetics acquaintance in a psychiatry residence program. Brazilian Journal of Health Review, [S. l.], v. 7, n. 2, p. e67772, 2024. DOI: 10.34119/bjhrv7n2-017. Disponível em: https://ojs.brazilianjournals.com.br/ojs/index.php/BJHR/article/view/67772. Acesso em: 18 oct. 2026.

Issue

Section

Original Papers