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Liao Z, Patel Y, Khairullah A, et al. Pubertal Testosterone and the Structure of the Cerebral Cortex in Young Men. Cereb Cortex. 2021;31(6):2812-2821doi: 10.1093/cercor/bhaa389.
Liao, Z., Patel, Y., Khairullah, A., Parker, N., & Paus, T. (2021). Pubertal Testosterone and the Structure of the Cerebral Cortex in Young Men. Cerebral cortex (New York, N.Y. : 1991), 31(6), 2812-2821. https://doi.org/10.1093/cercor/bhaa389
Liao, Zhijie, et al. "Pubertal Testosterone and the Structure of the Cerebral Cortex in Young Men." Cerebral cortex (New York, N.Y. : 1991) vol. 31,6 (2021): 2812-2821. doi: https://doi.org/10.1093/cercor/bhaa389
Liao Z, Patel Y, Khairullah A, Parker N, Paus T. Pubertal Testosterone and the Structure of the Cerebral Cortex in Young Men. Cereb Cortex. 2021 May 10;31(6):2812-2821. doi: 10.1093/cercor/bhaa389. PMID: 33429422; PMCID: PMC8107791.
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Cereb Cortex. 2021 May 10;31(6):2812-2821. doi: 10.1093/cercor/bhaa389.

Pubertal Testosterone and the Structure of the Cerebral Cortex in Young Men.

Cerebral cortex (New York, N.Y. : 1991)

Zhijie Liao, Yash Patel, Ammar Khairullah, Nadine Parker, Tomas Paus

Affiliations

  1. Department of Psychology, University of Toronto, Toronto, ON M5S3G3, Canada.
  2. Institute of Medical Sciences, University of Toronto, Toronto, ON M5S3G3, Canada.
  3. Department of Psychiatry, University of Toronto, Toronto, ON M5S3G3, Canada.

PMID: 33429422 PMCID: PMC8107791 DOI: 10.1093/cercor/bhaa389

Abstract

Adolescence is a period of brain maturation that may involve a second wave of organizational effects of sex steroids on the brain. Rodent studies suggest that, overall, organizational effects of gonadal steroid hormones decrease from the prenatal/perinatal period to adulthood. Here we used multimodal magnetic resonance imaging to investigate whether 1) testosterone exposure during adolescence (9-17 years) correlates with the structure of cerebral cortex in young men (n = 216, 19 years of age); 2) this relationship is modulated by the timing of testosterone surge during puberty. Our results showed that pubertal testosterone correlates with structural properties of the cerebral cortex, as captured by principal component analysis of T1 and T2 relaxation times, myelin water fraction, magnetization transfer ratio, fractional anisotropy and mean diffusivity. Many of the correlations between pubertal testosterone and the cortical structure were stronger in individuals with earlier (vs. later) testosterone surge. We also demonstrated that the strength of the relationship between pubertal testosterone and cortical structure across the cerebral cortex varies as a function of inter-regional profiles of gene expression specific to dendrites, axonal cytoskeleton, and myelin. This finding suggests that the cellular substrate underlying the relationships between pubertal testosterone and cerebral cortex involves both dendritic arbor and axon.

© The Author(s) 2021. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: [email protected].

Keywords: ALSPAC; axon; dendrite; testosterone surge; two-stage model

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