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Molecular tools for presymptomatic testing in multiple endocrine neoplasia type 1
C Larsson1, A Calender, S Grimmond
1Department of Clinical Genetics, Karolinska Hospital, Stockholm, Sweden.
Journal of Internal Medicine
|September 1, 1995
Summary
Researchers developed accurate molecular tools for diagnosing Multiple Endocrine Neoplasia type 1 (MEN1) pre-clinically. Linkage analysis in 87 families confirmed the effectiveness of these tools for presymptomatic testing in MEN1.
Area of Science:
- Genetics
- Molecular Biology
- Medical Diagnostics
Background:
- Multiple Endocrine Neoplasia type 1 (MEN1) is a hereditary endocrine disorder.
- Accurate pre-clinical diagnosis and presymptomatic testing are crucial for affected families.
- Understanding genetic linkage is key to developing diagnostic tools.
Purpose of the Study:
- To establish molecular tools for pre-clinical diagnosis of MEN1.
- To assess genetic linkage to chromosome 11q13 in MEN1 families.
- To enable accurate presymptomatic testing for individuals at risk.
Main Methods:
- Workshop session to define molecular diagnostic tools.
- Development of a consensus linkage map using PCR and Southern blotting.
- Linkage analysis performed on 87 families with classical MEN1.
Main Results:
- A consensus linkage map of markers was established.
- The presence or absence of linkage to 11q13 was assessed.
- Presymptomatic testing for MEN1 can now be performed with high accuracy.
Conclusions:
- A defined set of molecular tools is available for MEN1 pre-clinical diagnosis.
- Linkage analysis confirms the utility of these tools for MEN1 families.
- Accurate presymptomatic testing is now feasible for individuals with MEN1.