Cited by 723Sexual Differentiation and DisordersHypothalamic control of reproductive hormonesNeuroendocrine regulation and behavior

Wired for Reproduction: Organization and Development of Sexually Dimorphic Circuits in the Mammalian Forebrain

Simerly, Richard B.·2002·Annual Review of Neuroscience

Abstract

▪ Abstract Mammalian reproduction depends on the coordinated expression of behavior with precisely timed physiological events that are fundamentally different in males and females. An improved understanding of the neuroanatomical relationships between sexually dimorphic parts of the forebrain has contributed to a significant paradigm shift in how functional neural systems are approached experimentally. This review focuses on the organization of interconnected limbic-hypothalamic pathways that participate in the neural control of reproduction and summarizes what is known about the developmental neurobiology of these pathways. Sex steroid hormones such as estrogen and testosterone have much in common with neurotrophins and regulate cell death, neuronal migration, neurogenesis, and neurotransmitter plasticity. In addition, these hormones direct formation of sexually dimorphic circuits by influencing axonal guidance and synaptogenesis. The signaling events underlying the developmental activities of sex steroids involve interactions between nuclear hormone receptors and other transcriptional regulators, as well as interactions at multiple levels with neurotrophin and neurotransmitter signal transduction pathways.

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Crossref · 10.1146/annurev.neuro.25.112701.142745

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  • If the brain is exposed to testosterone either from its own testes in males or from an exogenous source in females, it will be masculinized.

    “If the brain is exposed to testosterone either from its own testes in males or from an exogenous source in females, it will be masculinized [59–64].”

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Authors
Simerly, R. B.
Affiliations
Oregon Health & Science University (US)
Corresponding author
Simerly, Richard B.
Venue
Annual Review of Neuroscience
Published
2002-03
Volume
25
Issue
1
Pages
507-536
ISSN
  • 0147-006X (ISSN-L)
  • 1545-4126
OpenAlex
W2144727302
Cited by
723
References
3
Citations by year
2026: 15 · 2025: 25 · 2024: 14 · 2023: 27 · 2022: 23 · 2021: 23 · 2020: 23 · 2019: 18 · 2018: 30 · 2017: 23 · 2016: 38 · 2015: 24 · 2014: 37 · 2013: 36 · 2012: 38
FWCI
1.86
Type
journal article
Language
en
Open access
closed
Locations
  • Annual Review of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of Diabetes and Digestive and Kidney Diseases (P01DK055819, DK 55819)
  • National Institute of Neurological Disorders and Stroke (NS37952, R01NS037952)
  • National Center for Research Resources (RR-00163.)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
Keywords
sexual dimorphism, forebrain, sex hormones, estrogen, testosterone, neurotrophins, neuronal migration, neurogenesis, axon guidance, synaptogenesis, nuclear receptors, transcriptional regulation, neuronal development, reproductive behavior
MeSH terms
Animals, Cell Differentiation, Genes, Regulator, Humans, Nerve Growth Factors, Neural Pathways, Neuronal Plasticity, Reproduction, Sex Characteristics, Gonadal Steroid Hormones, Signal Transduction, Prosencephalon

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