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| Content Provider | PubMed Central |
|---|---|
| Author | Desowitz, R. S. Elm, J. Alpers, M. P. |
| Abstract | Enzyme-linked immunosorbent assay (ELISA) and Western blot (immunoblot) serological analyses for immunoglobulin G (IgG), IgM, and IgE antibodies to Plasmodium falciparum were made from 46 maternal-cord serum pairs obtained from parturient East Sepik (Papua New Guinea) women and their newborn. Concurrent study of these women had shown that placental parasitemia rates were related to parity with the highest rate (41%) in the primiparous group and the lowest rate (3%) in the women who had given birth more than three times (> 3 parity group). Overall ELISA positivity rates for antimalarial IgG, IgM, and IgE antibodies in the maternal sera were 54.3, 28.2, and 8.3%, respectively, while those for the cord sera were 36.9, 0, and 16.6% respectively. Seropositivity rates were not related to maternal parity group, except for maternal IgE, in which there was a higher rate, of borderline significance, in the > 3 parity group than in the primiparous group. Cord IgE positivity was largely independent of maternal positivity and vice versa. Cord and maternal IgG immunoblot pairs showed near homology. IgG antibodies to the P. falciparum antigens of sizes < 36 kDa were either weak or absent in parity group 1 and 2 maternal-cord serum pairs. Neither ELISA or immunoblot revealed IgM antibody in the cord serum samples. Maternal IgM antibodies showed a heterogeneity of responses both between paired IgG immunoblots and between different serum samples. The IgE immunoblots exhibited a similar diversity, albeit of less complexity. The presence of P. falciparum-specific IgE in the cord sera would indicate that prenatal immune hypersensitization of the fetus to malaria had occurred. |
| Starting Page | 988 |
| File Format | |
| ISSN | 10985522 |
| e-ISSN | 10985522 |
| Journal | Infection and Immunity |
| Issue Number | 3 |
| Volume Number | 61 |
| Language | English |
| Publisher Date | 1993-03-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Infectious Diseases Parasitology Immunology Microbiology |
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