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Behavioral perinatology: biobehavioral processes in human fetal development
Pathik D Wadhwa1, Laura Glynn, Calvin J Hobel
1Department of Psychiatry and Human Behavior, University of California, Irvine, CA 92697-4260, USA. pwadhwa@uci.edu
Insights
Maternal stress during pregnancy impacts fetal development through neuroendocrine, immune, and vascular pathways. Understanding these effects is crucial for preventing prematurity and neurodevelopmental issues.
Area of Science:
- Behavioral perinatology
- Developmental neuroscience
- Maternal-fetal medicine
Background:
- Behavioral perinatology examines the interplay between biological and behavioral processes in early life.
- Maternal pre- and perinatal stress significantly influences fetal development.
- Existing research highlights the need for a comprehensive model of stress during gestation.
Purpose of the Study:
- To present a neurobiological model of pre- and perinatal stress.
- To explore the implications of maternal stress on fetal development.
- To identify key physiological pathways mediating stress effects.
Main Methods:
- Conceptualization of a theoretical model based on developmental ontogeny and pregnancy physiology.
- Review of empirical studies on maternal stress and fetal outcomes.
- Analysis of the role of placental corticotropin-releasing hormone (CRH).
Main Results:
- Chronic maternal stress can negatively impact fetal developmental outcomes.
- Stress effects are mediated via neuroendocrine, immune/inflammatory, and vascular pathways.
- Placental CRH plays a central role in coordinating these stress responses.
Conclusions:
- Maternal stress, modulated by its timing and duration, has profound effects on fetal development.
- This research provides a framework for understanding risks of prematurity, adverse neurodevelopment, and adult chronic diseases.
- Further research is recommended to refine the model and explore interventions.
Abstract:
Behavioral perinatology is as an interdisciplinary area of research that involves conceptualization of theoretical models and conduct of empirical studies of the dynamic time-, place-, and context-dependent interplay between biological and behavioral processes in fetal, neonatal, and infant life using an epigenetic framework of development. The biobehavioral processes of particular interest to our research group relate to the effects of maternal pre- and perinatal stress and maternal-placental-fetal stress physiology. We propose that behavioral perinatology research may have important implications for a better understanding of the processes that underlie or contribute to the risk of three sets of outcomes: prematurity, adverse neurodevelopment, and chronic degenerative diseases in adulthood. Based on our understanding of the ontogeny of human fetal development and the physiology of pregnancy and fetal development, we have articulated a neurobiological model of pre- and perinatal stress. Our model proposes that chronic maternal stress may exert a significant influence on fetal developmental outcomes. Maternal stress may act via one or more of three major physiological pathways: neuroendocrine, immune/inflammatory, and vascular. We further suggest that placental corticotropin-releasing hormone (CRH) may play a central role in coordinating the effects of endocrine, immune/inflammatory, and vascular processes on fetal developmental outcomes. Finally, we hypothesize that the effects of maternal stress are modulated by the nature, duration, and timing of occurrence of stress during gestation. In this paper, we elaborate on the conceptual and empirical basis for this model, highlight some relevant issues and questions, and make recommendations for future research in this area.