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[Antibody deficiency without decrease in the level of serum immunoglobulins]
Insights
This study details a 14-year-old boy with short stature, eczema, and recurrent infections, showing persistent antibody deficiency despite normal T and B cell counts. A prolonged immune system maturation delay is suggested.
Area of Science:
- Immunology
- Pediatrics
- Clinical Case Study
Background:
- Presents a case of a 14-year-old male with intrauterine growth retardation.
- Initial symptoms included short stature, generalized eczema, and recurrent infections.
Observation:
- Hypogammaglobulinemia with antibody deficiency was noted in early childhood.
- Infections became less severe over time.
- Normal plasma levels of IgA, IgG, IgM, and IgE were observed, contrasted with hyperimmunoglobulinemia D.
Findings:
- Persistent deficiency of antibodies against tested antigens.
- Normal T and B lymphocyte counts and in vitro proliferation responses.
- Abnormal helper T cell/suppressive T cell activity ratio noted.
Implications:
- Suggests a prolonged immune system maturation delay possibly linked to fetal hypotrophy.
- Highlights a complex immunodeficiency with specific antibody production defects.
- Underscores the importance of detailed immunological assessment in cases of recurrent infections and growth issues.
Abstract:
The paper reports the case of a 14 year-old boy, born at full term with intra-uterine growth retardation (1,640 g) who presented with short stature, generalized eczema and recurrent infections. During the first years of life, hypogammaglobulinemia with antibody deficiency occurred. The in vitro T lymphocyte function was normal. The infections have become less severe. The plasma levels of IgA, IgG, IgM and IgE are normal. There is hyperimmunoglobulinemia D. The deficiency of antibodies against most of the tested antigens persists. T and B lymphocyte counts are normal. The in vitro lymphocyte proliferation with Concanavalin A, Phytohemagglutinin, Pokeweed mitogen and Nocardia is normal. The OKT4+ and OKT8+ cell counts are normal. The ratio "helper T cell/suppressive T cell activity" appears to be abnormal. A very prolonged maturation delay, possibly associated with fetal hypotrophy may be hypothesized.