Mutations and pituitary morphology in a series of 82 patients with PROP1 gene defects
Language English Country Switzerland Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
22024773
DOI
10.1159/000332693
PII: 000332693
Knihovny.cz E-resources
- MeSH
- Child MeSH
- Adult MeSH
- Homeodomain Proteins genetics MeSH
- Pituitary Gland diagnostic imaging pathology MeSH
- Hypopituitarism diagnostic imaging epidemiology genetics pathology MeSH
- Cohort Studies MeSH
- Middle Aged MeSH
- Humans MeSH
- Magnetic Resonance Imaging MeSH
- Adolescent MeSH
- Young Adult MeSH
- Mutation * physiology MeSH
- Child, Preschool MeSH
- Radiography MeSH
- Aged MeSH
- Organ Size MeSH
- Check Tag
- Child MeSH
- Adult MeSH
- Middle Aged MeSH
- Humans MeSH
- Adolescent MeSH
- Young Adult MeSH
- Male MeSH
- Child, Preschool MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Homeodomain Proteins MeSH
- Prophet of Pit-1 protein MeSH Browser
BACKGROUND/AIMS: Defects of the PROP1 gene are the most prevalent genetic cause of combined pituitary hormone deficiency. Previous observations in affected patients have shown pituitary size ranging from hypoplasia to overt pituitary mass and evolution of size over the lifespan. METHODS: We evaluated pituitary size and morphology in PROP1-mutation carriers who originated from Central and Eastern Europe. We analyzed 112 pituitary magnetic resonance imaging (MRI) scans from 82 patients (42 males) aged 2.5-72.7 (median 16.6) years from 60 kindreds. RESULTS: Among the 120 independent PROP1 alleles, the most prevalent mutations were delGA301/302 (99 alleles) and delA150 (13 alleles). Median pituitary height at first MRI was 4.7 mm (range 1.0-20.7) and median volume was 127.6 mm(3) (range 7.5-3,087.0). Pituitary size did not differ between sexes and did not correlate with hormonal phenotype, but significantly decreased with increasing age. However, evaluation of individual values suggested a biphasic mode with increasing volume during childhood, peak in adolescence, and subsequent regression in adulthood. CONCLUSION: Although pituitary size was increased in a number of PROP1-deficient patients, none of them suffered permanent damage from pituitary mass; therefore, any proposed surgery should be postponed as long as possible and ultimately may not be necessary due to the self-limiting nature of the pituitary enlargement.
References provided by Crossref.org
Etiology of combined pituitary hormone deficiency: GNAO1 as a novel candidate gene
Combined pituitary hormone deficiency due to gross deletions in the POU1F1 (PIT-1) and PROP1 genes