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[Serum lysozyme activity in term and preterm newborns (author's transl)]
Monatsschrift Fur Kinderheilkunde
|January 1, 1980
Summary
Serum lysozyme levels are significantly lower in premature newborns compared to term infants. Levels rise in premature babies and fall in mature newborns over two weeks, potentially indicating sepsis in some prematures.
Area of Science:
- Neonatal immunology
- Biochemistry
Context:
- Lysozyme, an antimicrobial enzyme, plays a crucial role in innate immunity.
- Understanding lysozyme dynamics in newborns is vital for assessing immune function and infection risk.
Purpose:
- To investigate and compare serum lysozyme concentrations in term and premature newborns.
- To observe changes in lysozyme levels over time and their correlation with clinical conditions like sepsis.
Summary:
- Serum lysozyme levels were significantly lower in premature newborns (n=36) than in term newborns (n=43).
- Over two weeks, premature infants showed increasing lysozyme levels, while term infants showed decreasing levels.
- Premature infants with sepsis exhibited significantly lower lysozyme concentrations than healthy premature infants, suggesting reduced enzyme activity during infection.
Impact:
- Findings suggest lysozyme levels are a potential biomarker for immune status and infection in neonates.
- Highlights the differential immune maturation between term and premature infants.
- Provides insights into the role of neutrophil turnover and lysozyme activity in neonatal host defense.