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Updated: May 29, 2025

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis
Published on: August 12, 2020
Circadian Rhythms, Immune Regulation, and the Risk for Sepsis: Circadian Rhythms and Neonatal Care
Shaon Sengupta1, David F Smith2, Bala S C Koritala2
1Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, The Children's Hospital of Philadelphia, 3615 Curie Boulevard, Abramson Research Building, 1102C, Philadelphia, PA 19104, USA.
Insights
Host response to infection is controlled by circadian rhythms. This review explores the molecular clock
Area of Science:
- Chronobiology
- Immunology
- Neonatal Medicine
Background:
- Circadian rhythms are crucial for host adaptation to environmental changes.
- Host response to infections, including sepsis, is significantly influenced by circadian control.
- Existing research predominantly focuses on adult populations, with limited understanding of neonatal circadian biology.
Purpose of the Study:
- To review the molecular clock's role in immunity and adult sepsis.
- To highlight the importance of circadian rhythms during neonatal development.
- To identify challenges and opportunities in managing neonatal sepsis by integrating circadian biology.
Main Methods:
- Literature review of circadian biology, molecular clock mechanisms, and immune responses.
- Synthesis of existing knowledge on adult sepsis and circadian rhythms.
- Exploration of neonatal development and emerging circadian rhythms.
Main Results:
- The molecular clock plays a critical role in regulating immune responses and influencing sepsis outcomes in adults.
- Neonatal and early infancy are critical periods for the establishment of circadian rhythms.
- Understanding these emerging rhythms is key to addressing neonatal sepsis.
Conclusions:
- Circadian biology offers a novel perspective for understanding and managing neonatal sepsis.
- Integrating knowledge of the molecular clock into neonatal care can improve outcomes.
- Further research is needed to fully elucidate the impact of circadian rhythms on neonatal immunity and sepsis.
Abstract:
Circadian rhythms provide an anticipatory mechanism for organisms to adapt to environmental changes. Host response to infections is under robust circadian control. Most of the existing literature focuses on adults in epidemiologic and animal studies. Neonatal and early infancy represent critical windows in the consolidation of circadian rhythms. This review summarizes our understanding of the molecular clock, especially its relevance to immunity and adult sepsis. Further, using our knowledge of circadian biology in caring for a newborn host with emerging circadian rhythms represents a unique challenge and an opportunity for improving our approach and outcomes in neonatal sepsis.
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