Aromatase excess syndrome
Dernière mise à jour 18 Aug 2020
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Aromatase excess syndrome is a condition characterised by elevated levels of the female sex hormone estrogen in both males and females. Males with aromatase excess syndrome experience breast enlargement (gynecomastia) in late childhood or adolescence. The bones of affected males grow and develop more quickly and stop growing sooner than usual (advanced bone age). As a result males have an early growth spurt, typically during late childhood, with short stature as an adult. Affected females rarely show signs and symptoms of the condition, but they may have increased breast growth (macromastia), irregular menstrual periods, and short stature. The ability to have children (fertility) is usually normal in both males and females with aromatase excess syndrome.
Description
Aromatase excess syndrome is a condition characterised by elevated levels of the female sex hormone estrogen in both males and females. Males with aromatase excess syndrome experience breast enlargement (gynecomastia) in late childhood or adolescence. The bones of affected males grow and develop more quickly and stop growing sooner than usual (advanced bone age). As a result males have an early growth spurt, typically during late childhood, with short stature as an adult. Affected females rarely show signs and symptoms of the condition, but they may have increased breast growth (macromastia), irregular menstrual periods, and short stature. The ability to have children (fertility) is usually normal in both males and females with aromatase excess syndrome.
Inheritance patterns
The source lists the following possible inheritance patterns: Autosomal dominant. More than one pattern can apply in different cases.
Related genes
Other names
AEXS
Familial gynecomastia due to increased aromatase activity
Hereditary gynecomastia
Increased aromatase activity
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Lectures complémentaires et références
- Aromatase excess syndrome; MedlinePlus, National Library of Medicine.
- Fukami M, Shozu M, Ogata T. Molecular bases and phenotypic determinants of aromatase excess syndrome. Int J Endocrinol. 2012;2012:584807. doi: 10.1155/2012/584807. Epub 2012 Jan 26.
- Fukami M, Shozu M, Soneda S, Kato F, Inagaki A, Takagi H, Hanaki K, Kanzaki S, Ohyama K, Sano T, Nishigaki T, Yokoya S, Binder G, Horikawa R, Ogata T. Aromatase excess syndrome: identification of cryptic duplications and deletions leading to gain of function of CYP19A1 and assessment of phenotypic determinants. J Clin Endocrinol Metab. 2011 Jun;96(6):E1035-43. doi: 10.1210/jc.2011-0145. Epub 2011 Apr 6.
- Fukami M, Tsuchiya T, Vollbach H, Brown KA, Abe S, Ohtsu S, Wabitsch M, Burger H, Simpson ER, Umezawa A, Shihara D, Nakabayashi K, Bulun SE, Shozu M, Ogata T. Genomic basis of aromatase excess syndrome: recombination- and replication-mediated rearrangements leading to CYP19A1 overexpression. J Clin Endocrinol Metab. 2013 Dec;98(12):E2013-21. doi: 10.1210/jc.2013-2520. Epub 2013 Sep 24.
- Shihara D, Miyado M, Nakabayashi K, Shozu M, Ogata T, Nagasaki K, Fukami M. Aromatase excess syndrome in a family with upstream deletion of CYP19A1. Clin Endocrinol (Oxf). 2014 Aug;81(2):314-6. doi: 10.1111/cen.12329. Epub 2013 Oct 18. No abstract available.
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