Cited by 19Sexual Differentiation and DisordersAdrenal Hormones and DisordersMetabolism and Genetic Disorders

Long-term follow-up of a female with congenital adrenal hyperplasia due to P450-oxidoreductase deficiency

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Bonamichi, Beatriz D. S. F., Santiago, Stella L. M., Bertola, Débora R., Kim, Chong A., Alonso, Nivaldo, Mendonca, Berenice B., Bachega, Tania A. S. S., Gomes, Larissa G.·2016·Archives of Endocrinology and Metabolism

Abstract

P450 oxidoreductase deficiency (PORD) is a variant of congenital adrenal hyperplasia that is caused by POR gene mutations. The POR gene encodes a flavor protein that transfers electrons from nicotinamide adenine dinucleotide phosphate (NADPH) to all microsomal cytochrome P450 type II (including 21-hydroxylase, 17α-hydroxylase 17,20 lyase and aromatase), which is fundamental for their enzymatic activity. POR mutations cause variable impairments in steroidogenic enzyme activities that result in wide phenotypic variability ranging from 46,XX or 46,XY disorders of sexual differentiation, glucocorticoid deficiency, with or without skeletal malformations similar to Antley-Bixler syndrome to asymptomatic newborns diagnosed during neonatal screening test. Little is known about the PORD long-term evolution. We described a 46,XX patient with mild atypical genitalia associated with severe bone malformation, who was diagnosed after 13 years due to sexual infantilism. She developed large ovarian cysts and late onset adrenal insufficiency during follow-up, both of each regressed after hormone replacement therapies. We also described a late surgical approach for the correction of facial hypoplasia in a POR patient.

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Crossref · 10.1590/2359-3997000000213

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  • Approximately half of all PORD patients require lifelong hydrocortisone replacement, while others may only need supplemental doses during periods of physiologic stress.

    “While approximately half of all PORD patients require lifelong hydrocortisone replacement, others may only need supplemental doses during periods of physiologic stress (21, 28, 34).”

    From Case Report: Integrating clinical presentation and genetic analysis in P450 oxidoreductase deficiency: a novel mutation and systematic review (2026) · cites this paper as [28]

    The Discussion reports that 50% of PORD patients in large cohorts needed permanent hydrocortisone. The Case Report describes stress-dose glucocorticoids during surgery, but its patient later needed ongoing therapy; it does not establish that other patients need supplementation only during physiologic stress. No page numbers are available in our copy. (LLM, conf=0.86)

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Authors
Bonamichi, B. D. S. F., Santiago, S. L. M., Bertola, D. R., Kim, C. A., Alonso, N., Mendonca, B. B., Bachega, T. A. S. S., & Gomes, L. G.
Affiliations
  • Irmandade da Santa Casa de Misericórdia de São Paulo (BR)
  • Universidade de São Paulo (BR)
  • Faculdade de Medicina da Universidade de São Paulo, Brasil
Venue
Archives of Endocrinology and Metabolism
Published
2016-10
Volume
60
Issue
5
Pages
500-504
ISSN
2359-3997 (ISSN-L)
OpenAlex
W2528099780
Cited by
19
References
21
Citations by year
2026: 2 · 2025: 1 · 2024: 1 · 2023: 2 · 2022: 2 · 2021: 1 · 2020: 4 · 2019: 4 · 2017: 2
FWCI
1.04
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Archives of Endocrinology and Metabolism (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
  • Americanae (AECID Library) (submittedVersion, cc-by-nc)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Conselho Nacional de Desenvolvimento Científico e Tecnológico (308318/2012-9)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
Keywords
P450 oxidoreductase deficiency, congenital adrenal hyperplasia, long-term follow-up, 46,XX disorders of sex development, ambiguous genitalia, bone malformations, Antley-Bixler syndrome, adrenal insufficiency, ovarian cysts, hormone replacement therapy, facial hypoplasia, steroidogenesis

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