Abstract | BACKGROUND AND OBJECTIVES: DESIGN AND SETTING: A cross-sectional prospective study of patients followed up at King Abdulaziz University Hospital and King Abdulaziz Medical City, Jeddah, between March 2001 and March 2011. PATIENTS AND METHODS: Genomic DNA was isolated from peripheral blood leukocytes of all subjects by standard procedures. Exons 10, 11, 13, 14 and 16 of the RET proto-oncogene were analyzed by single-strand conformation polymorphism, direct DNA sequencing and/or restriction enzyme analysis. RESULTS: We screened 79 subjects for the RET mutation. Of which 43 subjects had hereditary MTC were en.rolled in this study. MEN type 2A was identified in 25 subjects; MTC was diagnosed in all 25 subjects (100%), pheochromocytoma in 13 subjects (52%) and hyperparathyroidism in 4 subjects (16%). The most frequent genotype in patients with MEN 2A syndrome was a codon 618 mutation (46.6%), followed by a codon 634 mutation (44.2%). Among the 5 families with MEN 2A, 3 had a mutation at codon 634, whereas 2 had a mutation at codon 618. CONCLUSION: The most frequent RET proto-oncogene mutation in our series was in codon 618 (exon 10).
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Authors | Faiza Qari |
Journal | Annals of Saudi medicine
(Ann Saudi Med)
2013 Mar-Apr
Vol. 33
Issue 2
Pg. 155-8
ISSN: 0975-4466 [Electronic] Saudi Arabia |
PMID | 23563004
(Publication Type: Journal Article)
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Chemical References |
- Codon
- Genetic Markers
- MAS1 protein, human
- Proto-Oncogene Mas
- Proto-Oncogene Proteins c-ret
- RET protein, human
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Topics |
- Adolescent
- Adult
- Aged
- Carcinoma, Medullary
(complications, congenital, genetics)
- Child
- Codon
- Cross-Sectional Studies
- DNA Mutational Analysis
- Exons
- Female
- Genetic Markers
- Humans
- Male
- Middle Aged
- Multiple Endocrine Neoplasia Type 2a
(complications, genetics)
- Mutation
- Prospective Studies
- Proto-Oncogene Mas
- Proto-Oncogene Proteins c-ret
(genetics)
- Saudi Arabia
- Sequence Analysis, DNA
- Thyroid Neoplasms
(complications, genetics)
- Young Adult
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