Frequency of lower respiratory tract infections in relation to adaptive immunity in children with Down syndrome compared to their healthy siblings.
Summary of "Frequency of lower respiratory tract infections in relation to adaptive immunity in children with Down syndrome compared to their healthy siblings."
Aim:â€‚ Children with Down syndrome (DS) experience respiratory tract infections (RTIs) more frequently than healthy children. We investigated whether this is related to different immunological characteristics associated with DS. Methods:â€‚ The study group consisted of 22 children with DS and 22 of their healthy, age-range matched siblings. Data were collected on infections and hospitalizations because of lower RTIs. Immunoglobulin and IgG subclass levels in blood, as well as lymphocyte and T cell (subset) counts, were determined. Results:â€‚ The children with DS had a significantly higher frequency of lower RTIs and related hospitalization than their siblings. We also found significantly reduced IgG2 levels as well as significantly lower counts of total lymphocytes, CD4(+) T lymphocytes, CD4(+) invariant natural killer (iNKT) cells and regulatory T cells in the DS group. Conclusion:â€‚ In children with DS, reduced levels of IgG2, total lymphocytes, T lymphocytes, iNKT cells and regulatory T cells might contribute to their higher susceptibility to lower RTIs.
Department of Pediatrics, VU University Medical Center, Amsterdam, The Netherlands Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands Department of Pathology, VU University Medical Center, Amsterdam, The
This article was published in the following journal.
Name: Acta paediatrica (Oslo, Norway : 1992)
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22548641
- DOI: http://dx.doi.org/10.1111/j.1651-2227.2012.02696.x
Medical and Biotech [MESH] Definitions
A second-generation cephalosporin administered intravenously or intramuscularly. Its bactericidal action results from inhibition of cell wall synthesis. It is used for urinary tract infections, lower respiratory tract infections, and soft tissue and bone infections.
Coronavirus Nl63, Human
A species in the genus CORONAVIRUS causing upper and lower RESPIRATORY TRACT INFECTIONS. It shares the receptor used by the SARS VIRUS.
Respiratory Tract Infections
Invasion of the host RESPIRATORY SYSTEM by microorganisms, usually leading to pathological processes or diseases.
Respiratory Tract Fistula
An abnormal passage communicating between any component of the respiratory tract or between any part of the respiratory system and surrounding organs.
Respiratory Dead Space
That part of the RESPIRATORY TRACT or the air within the respiratory tract that does not exchange OXYGEN and CARBON DIOXIDE with pulmonary capillary blood.
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