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Related Experiment Video

Updated: Jul 8, 2026

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis

Published on: August 12, 2020

[Neonatal immune system changes caused by phototherapy].

Lj Mrkaić, B Kamenov, S Najman

Srpski Arhiv Za Celokupno Lekarstvo

|January 1, 1994

Summary

Phototherapy for neonatal hyperbilirubinemia may temporarily impair immune cell function, indicated by reduced phagocyte response. This could potentially complicate infections in newborns undergoing treatment.

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Published on: June 24, 2020

Area of Science:

Neonatal immunology
Phototherapy research
Cellular function studies

Context:

Phototherapy is a common treatment for neonatal hyperbilirubinemia.
Potential adverse effects of phototherapy on neonates include behavioral changes and increased infection risk.
Electromagnetic radiation from phototherapy devices may impact cellular functions.

Purpose:

To investigate the effects of phototherapy on the immune system of healthy neonates with hyperbilirubinemia.
To assess changes in immune cell counts and functions before and after phototherapy.
To evaluate the impact of phototherapy on the chemiluminescent response of leukocytes.

Summary:

Phototherapy treatment for neonatal hyperbilirubinemia was examined in healthy neonates.
Measurements included physical exams, white blood cell counts, lymphocyte markers, and leukocyte chemiluminescence.
Results indicated an increase in white blood cells but a delayed and weakened chemiluminescent response in phagocytes post-phototherapy.

Impact:

Phototherapy may temporarily decrease the functional capacity of phagocytes, potentially complicating infections like bacteremia.
Findings suggest a transient immunosuppressive effect of phototherapy on neonatal immune cells.
Understanding these temporary immune alterations is crucial for managing neonatal hyperbilirubinemia and associated risks.