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New familial defect in microbicidal function of polymorphonuclear leucocytes
Lancet (London, England)
|October 4, 1975
Abstract:
A family is described in which a defect in intracellular killing affected two, and probably three, siblings of both sexes. From an early age they have had recurrent severe infections. During these episodes their white-blood-cell count became very high. This familial disorder seems to differ from previously reported syndromes of abnormal leucocyte function.
Insights
A rare familial disorder impairs white blood cell function, leading to severe, recurrent infections in siblings. This defect in intracellular killing suggests a previously unreported immune deficiency syndrome.
Area of Science:
- Immunology
- Genetics
- Pediatrics
Background:
- Recurrent severe infections in childhood can indicate underlying immune system dysfunction.
- Defects in the ability of white blood cells to kill pathogens (intracellular killing) are a known cause of immunodeficiency.
- Previous research has identified various syndromes associated with abnormal leukocyte function.
Observation:
- A family with recurrent severe infections in multiple siblings (two confirmed, one probable).
- Affected individuals exhibited extremely high white-blood-cell counts during infection episodes.
- The core issue identified was a defect in the cells' intracellular killing capacity.
Findings:
- The familial disorder is characterized by impaired phagocyte intracellular killing.
- The condition presents with recurrent severe infections from an early age.
- Elevated white-blood-cell counts were noted during infectious exacerbations.
Implications:
- This case suggests a novel genetic defect in immune function.
- Further research is needed to elucidate the specific molecular mechanisms.
- Highlights the importance of investigating familial patterns in unexplained immune deficiencies.