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Abstract:
The frequency of HLA-A, B, DR antigens was studied in 24 patients with acute measles encephalomyelitis compared to 1926 control subjects. The results demonstrated no association between the susceptibility to the disease and HLA markers. However, DR4 was observed in 6 patients out of 10 who developed intrathecal secretion of specific antimeasles immunoglobulins, while absent in 4 patients, who did not (p less than 0.04). Further studies on a larger series are needed.
Insights
This study found no link between HLA markers and measles encephalomyelitis susceptibility. However, the DR4 antigen was more common in patients with intrathecal antibody production, suggesting a potential role.
Area of Science:
- Immunogenetics
- Neurology
- Virology
Background:
- Measles encephalomyelitis is a serious neurological complication of measles.
- Human Leukocyte Antigen (HLA) genes play a crucial role in immune responses.
- Previous research has explored HLA associations with various post-infectious neurological disorders.
Purpose of the Study:
- To investigate the association between HLA antigen frequencies and susceptibility to acute measles encephalomyelitis.
- To explore potential HLA associations with intrathecal immunoglobulin synthesis in patients with measles encephalomyelitis.
Main Methods:
- HLA-A, B, and DR antigen typing was performed on 24 patients diagnosed with acute measles encephalomyelitis.
- A control group of 1926 subjects was used for comparison.
- Patients were assessed for the presence of specific antimeasles immunoglobulins in their cerebrospinal fluid.
Main Results:
- No significant association was found between HLA-A, B, DR antigen frequencies and the susceptibility to developing measles encephalomyelitis.
- The DR4 antigen was significantly more prevalent (p < 0.04) in the subgroup of 10 patients who exhibited intrathecal secretion of specific antimeasles immunoglobulins (6 out of 10) compared to those who did not (0 out of 4).
Conclusions:
- HLA markers do not appear to influence susceptibility to acute measles encephalomyelitis.
- The DR4 antigen may be associated with the development of intrathecal immune responses in measles encephalomyelitis.
- Larger cohort studies are warranted to confirm these preliminary findings regarding DR4 and intrathecal antibody production.