Hormonal and humoral influences on brain development

Area of Science:

• Neuroscience
• Developmental Biology
• Neuroendocrinology

Background:

• Neurotransmitters are traditionally viewed as signaling molecules in mature nervous systems.
• Their role in early development and organogenesis is increasingly recognized.
• Hormonal influences on brain development, particularly postnatally, are also significant.

Purpose of the Study:

• To review evidence for neurotransmitters as developmental signals in neural ontogeny.
• To explore the roles of neurotransmitters in non-neuronal tissues.
• To examine hormonal regulation of postnatal neurogenesis and interrelationships with neurotransmitters.

Main Methods:

• Literature review of existing studies on neurotransmitters and hormones in development.
• Synthesis of evidence from vertebrate and invertebrate models.
• Analysis of the interplay between humoral factors and nervous system development.

Main Results:

• Neurotransmitters function as key developmental signals in processes like neurulation and cell differentiation.
• These signaling molecules also play roles in non-neuronal tissues.
• Interactions between neurotransmitters and hormones create complex regulatory networks for nervous system development.

Conclusions:

• Neurotransmitters and hormones are crucial coordinating influences on neural ontogeny.
• External factors like drugs, stress, and environment can disrupt development during critical periods.
• Understanding these developmental roles is vital for comprehending neurodevelopmental disorders.