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Decreased adherence of polymorphonuclear neutrophils in children with viral infection
C Tolone1, R Toraldo, P Catalanotti
1Department of Paediatrics, First School of Medicine and Surgery, University of Naples, Italy.
Insights
Polymorphonuclear neutrophil adherence was lower in children with viral infections compared to healthy children and adults. Adherence returned to normal after recovery, indicating a temporary effect of viral illness.
Area of Science:
- Immunology
- Pediatrics
- Infectious Diseases
Background:
- Polymorphonuclear neutrophils (PMNs) play a crucial role in the immune response.
- Assessing PMN adherence can provide insights into immune function during infection.
Purpose of the Study:
- To investigate polymorphonuclear neutrophil adherence in children with viral infections.
- To compare PMN adherence in infected children with healthy children and adults.
Main Methods:
- Examined PMN adherence in 16 children with enteritis, pneumonia, hepatitis, and infectious mononucleosis.
- Compared results with 30 healthy adults and 15 healthy children.
- Re-evaluated adherence in 7 patients post-recovery.
Main Results:
- PMN adherence was significantly higher in adults than healthy children.
- PMN adherence was significantly higher in healthy children than in children with viral infections.
- PMN adherence normalized in patients one month after disease regression.
Conclusions:
- Viral infections in children are associated with reduced polymorphonuclear neutrophil adherence.
- The observed decrease in PMN adherence is likely a temporary effect of the viral illness.
- Restored PMN adherence post-recovery suggests the immune system's capacity to normalize.
Abstract:
The adherence of polymorphonuclear neutrophils was examined in 16 children affected by enteritis, pneumonia, hepatitis and infectious mononucleosis. The results were compared with those obtained in 30 healthy adult volunteers and in 15 healthy children of the same age. Adhesiveness was significantly higher in adults than in healthy children, and significantly higher in healthy children than in children with viral infection. In 7 patients tested one month after regression of the disorder, PMN adhesiveness had returned to normal.