Related Experiment Videos
The major histocompatibility complex and diabetes mellitus.
Experimental and Clinical Endocrinology
|March 1, 1987
Summary
Genetic markers of the human histocompatibility complex, specifically human leukocyte antigen (HLA) class II antigen types, are strongly associated with insulin-dependent diabetes mellitus. DNA analysis reveals specific DNA fragments linked to disease susceptibility.
Area of Science:
- Immunogenetics
- Molecular Biology
- Endocrinology
Background:
- Diabetes mellitus genetics research is advancing.
- Histocompatibility complex markers are discussed for disease association.
- Human histocompatibility complex genes encode polymorphic immune response proteins.
Purpose of the Study:
- To explore the association between human leukocyte antigen (HLA) class II antigens and insulin-dependent diabetes mellitus (IDDM).
- To investigate the genetic basis of HLA class II antigen polymorphism in relation to IDDM susceptibility.
Main Methods:
- Review of studies on histocompatibility complex markers and IDDM.
- Description of human leukocyte antigen (HLA) class I and class II antigens.
- Application of recombinant DNA technology to analyze class II specificities at the genetic level.
Main Results:
- Insulin-dependent diabetes mellitus (IDDM) incidence is associated with human leukocyte antigen (HLA) class II antigen types DR3 and/or DR4.
- Extensive polymorphism of class II antigens is a result of genetic organization.
- Class II antigen-related DNA restriction fragments show a stronger association with disease susceptibility than other markers.
Conclusions:
- Human leukocyte antigen (HLA) class II antigen types are significant genetic markers for insulin-dependent diabetes mellitus (IDDM).
- DNA restriction fragment analysis provides a more precise genetic marker for IDDM susceptibility.