Immunoglobulin G subclasses in older persons with Down syndrome
| Autor: | S.P. Mehta, H.M. Wisniewski, P.D. Mehta, M.E. Percy, E.A. Sersen, A.J. Dalton |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Adult
Male Down syndrome Immunoglobulin E Infections Subclass Immunoglobulin G Autoimmune Diseases Alzheimer Disease Antibody Specificity medicine Dementia Humans Aged biology Age Factors Middle Aged medicine.disease Neurology Immunology biology.protein Female Neurology (clinical) Antibody Alzheimer's disease Down Syndrome Trisomy |
| Zdroj: | Journal of the neurological sciences. 117(1-2) |
| ISSN: | 0022-510X |
| Popis: | IgG subclasses were measured in sera from 33 persons with Down syndrome (DS) (mean age 55 ± 7 years) and 33 age- and sex-matched control individuals using a mouse monoclonal antibody based sandwich enzyme linked immunosorbent assay. Significantly higher levels of IgG 1 and IgG 3 and lower levels of IgG 2 and IgG 4 subclasses were found in the DS group compared to the control individuals. The higher levels of IgG 1 and IgG 3 subclasses found in DS persons were consistent with those seen in patients with autoimmune diseases and chronic viral infections; the lower levels of IgG 2 and IgG 4 subclasses were consistent with those seen in patients with recurrent infections. Our findings are similar to those reported in children with DS. We speculate that the subclass levels may have little or no relationship to the development of brain lesions typical of Alzheimer disease in older persons with DS. There were no significant differences between the levels of IgG subclasses of persons with DS showing signs of dementia of the Alzheimer type compared to those without such manifestations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|