The Relationship Between Estrogen and the Decline in Delta Power During Adolescence

McHill, Andrew W.; Klerman, Elizabeth B.; Slater, Bridgette; Kangarloo, Tairmae; Mankowski, Piotr W.; Shaw, Natalie D.

doi:10.1093/sleep/zsx008

Cited by 14 publications

(9 citation statements)

References 38 publications

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“…We observed a positive correlation between the 17-OHP levels and the sleep timing in girls with premature pubarche. These results support the notion that pubertal development is linked to sleep phenotypes, as the elevation of these hormone levels represents the activation of pubarche [26,37]. Recently, Foley et al reported a prospective association between trajectories in pubertal timing and sleep behavior in a large US cohort [31]; those results are in line with our observation that higher 17-OHP levels were associated with a later sleep timing in our study.…”

Section: Discussionsupporting

confidence: 93%

Incidence of Daytime Sleepiness and Associated Factors in Two First Nations Communities in Saskatchewan, Canada

et al. 2018

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Previous studies have reported a shift in the timing of sleep during adolescence toward a later time. To date, it is unclear whether hormonal changes during puberty might contribute to this change in sleeping behavior. We systematically assessed pubertal development and sleep timing in a cross-sectional case-control study in girls with precocious (n = 42) and boys with delayed pubertal development (n = 19). We used the Munich ChronoType Questionnaire and the Children's ChronoType Questionnaire to assess sleep timing in patients and age-and sex-matched controls (n = 309) and used the midpoint of sleep on free days, corrected for potential sleep debt accumulated during the school week, as a marker for sleep timing. Compared to the controls, girls with central precocious puberty showed a delay in sleep timing of 54 min, and girls with premature pubarche slept on average 30 min later. Male adolescents with delayed pubertal development showed an average sleep midpoint that was 40 min earlier compared to the control group. The results of this pilot study suggest an association between pubertal onset and shifts in sleep timing, which is a novel finding in human sleep behavior. Prospective studies in larger cohorts will be needed to examine the robustness and generalizability of the findings.

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Section: Discussionsupporting

confidence: 93%

Incidence of Daytime Sleepiness and Associated Factors in Two First Nations Communities in Saskatchewan, Canada

et al. 2018

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“…Our findings for delayed bedtimes and wake time for girls with earlier pubic hair development, compared to breast development, may reflect the extrinsic manifestation of androgenic effects associated with declines in SWA. McHill et al (2017), however, reported alternative findings to those of Campbell and colleagues. They reported that neither estrogen nor DHEAS were related to SWA in a small sample of girls with central precocious puberty and age-matched controls.…”

Section: Table 4dmentioning

confidence: 70%

Changes to sleep‐wake behaviors are associated with trajectories of pubertal timing and tempo of secondary sex characteristics^☆

Foley

Ram

Susman

et al. 2018

Journal of Adolescence

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We examined relations between sleep-wake behaviors and pubertal development from age 8.5 through 15.5 years in a US-based sample of 488 boys (75% White) and 478 girls (78% White). Applying conditional nonlinear growth models to 7-waves of longitudinal data, we examined how sleep-wake behaviors are related to individual differences in the developmental timing and tempo of secondary sex characteristics. For girls, results supported the hypothesis that circadian changes in bedtimes, wake times, sleep duration, and eveningness preference were uniquely related to development of discrete aspects of secondary sex characteristics. For boys, the hypothesis was generally not supported. Different endocrine systems related to discrete secondary sex characteristics may be responsible for more relations between sleep and pubic hair development than for breast or genital development. Further research into associations between adrenarche and sleep during puberty may help researchers understand more about the origins and timing of adolescent sleep changes.Sleep-wake behaviors exhibit marked changes during puberty and adolescence in part due to maturation of biological and neuroendocrine systems. Prior research presumed environmental reasons for shifting sleep patterns, but recent findings suggest that regulatory control by intrinsic brain mechanisms may play a more prominent role in sleep cycles than previously thought (Carskadon, Acebo, & Jenni, 2004;Hagenauer, Perryman, Lee, & Carskadon, 2009). Sleep-wake changes include delayed bed times and shortened sleep on school nights and a shift to later bedtimes and wake times on weekends (Gradisar, Gardner, & Dohnt, 2011). Maturational changes to sleep typically result in insufficient sleep on school nights with compensatory sleep on weekends, and this pattern can lead to academic difficulties, daytime sleepiness, and depressive symptoms (Wolfson & Carskadon, 1998).The timing of developmental changes in sleep has been described vaguely as occurring during puberty (e.g., Hagenauer & Lee, 2012), at the onset of puberty (e.g., Sadeh, Dahl, Shahar, & Rosenblat-Stein, 2009), or during adolescence (e.g., Crowley, Acebo, & Carskadon, 2007). Even though the terms adolescence and puberty are often used interchangeably, they represent discrete life phases (Sisk & Zehr, 2005). While puberty is a specific set of biological events, adolescence is a broader period of life. Adolescence refers to the transition from childhood to adulthood, with growth in physical, cognitive, and emotional development that may extend from around 10 years-of-age to the mid-20s (Dorn, Dahl, Woodward, Hermi, & Biro, 2006). On average, it lasts five to eight years after pubertal onset (Rosenfeld & Nicodemus, 2003). Given the negative outcomes associated with insufficient sleep in adolescence, it seems worthwhile to focus more closely on the relation between the developmental timing of delayed phase sleep changes and the timing and pace of specific developmental changes during puberty.

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“…The authors hypothesize that the power decline is associated with developmental processes other than physical or sexual maturation. Further evidence for this notion comes from a study investigating delta power in girls with central precocious puberty 81 concluding that increased estrogen does not cause the adolescent decline in delta power.…”

Section: Sleep Eeg Powermentioning

confidence: 99%

Gender differences in adolescent sleep neurophysiology: a high-density sleep EEG study

Markovic

Kaess

Tarokh

2020

Sci Rep

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During adolescence, differences between males and females in physiology, behavior and risk for psychopathology are accentuated. The goal of the current study was to examine gender differences in sleep neurophysiology using high-density sleep EEG in early adolescence. We examined gender differences in sleep EEG power and coherence across frequency bands for both NREM and REM sleep in a sample of 61 adolescents (31 girls and 30 boys; mean age = 12.48; SD = 1.34). In addition, sleep spindles were individually detected and characterized. Compared to boys, girls had significantly greater spindle activity, as reflected in higher NREM sigma power, spindle amplitude, spindle frequency and spindle density over widespread regions. Furthermore, power in higher frequency bands (16.2–44 Hz) was larger in girls than boys in a state independent manner. Oscillatory activity across frequency bands and sleep states was generally more coherent in females as compared to males, suggesting greater connectivity in females. An exception to this finding was the alpha band during NREM and REM sleep, where coherence was higher (NREM) or not different (REM) in boys compared to girls. Sleep spindles are generated through thalamocortical circuits, and thus, the greater spindle activity across regions in females may represent a stronger thalamocortical circuit in adolescent females as compared to males. Moreover, greater global connectivity in females may reflect functional brain differences with implications for cognition and mental health. Given the pronounced gender differences, our study highlights the importance of taking gender into account when designing and interpreting studies of sleep neurophysiology.

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The Relationship Between Estrogen and the Decline in Delta Power During Adolescence

Cited by 14 publications

References 38 publications

Incidence of Daytime Sleepiness and Associated Factors in Two First Nations Communities in Saskatchewan, Canada

Incidence of Daytime Sleepiness and Associated Factors in Two First Nations Communities in Saskatchewan, Canada

Changes to sleep‐wake behaviors are associated with trajectories of pubertal timing and tempo of secondary sex characteristics^☆

Gender differences in adolescent sleep neurophysiology: a high-density sleep EEG study

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The Relationship Between Estrogen and the Decline in Delta Power During Adolescence

Cited by 14 publications

References 38 publications

Incidence of Daytime Sleepiness and Associated Factors in Two First Nations Communities in Saskatchewan, Canada

Incidence of Daytime Sleepiness and Associated Factors in Two First Nations Communities in Saskatchewan, Canada

Changes to sleep‐wake behaviors are associated with trajectories of pubertal timing and tempo of secondary sex characteristics☆

Gender differences in adolescent sleep neurophysiology: a high-density sleep EEG study

Contact Info

Product

Resources

About

Changes to sleep‐wake behaviors are associated with trajectories of pubertal timing and tempo of secondary sex characteristics^☆