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Defelipe RP, Terra J, Francischelli I, Pacheco B, Araújo PP, Mesquita AR, Ribeiro MO, Correa M, Osório A. Hair collection protocol in 12-month-old infants. COMPREHENSIVE PSYCHONEUROENDOCRINOLOGY 2024; 19:100243. [PMID: 39070240 PMCID: PMC11279705 DOI: 10.1016/j.cpnec.2024.100243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/11/2024] [Accepted: 06/17/2024] [Indexed: 07/30/2024] Open
Abstract
Purpose Most studies assessing hair cortisol were conducted with adults. As specific guidelines for infant hair collection are lacking, we developed a hair collection protocol for 12-month-old infants and assessed its acceptability and feasibility. Results Out of the total (N = 45), 95.6 % (n = 43) of caregivers consented to the procedure, while one caregiver did not consent (2.2 %), and another requested the procedure to be halted before required amount of hair had been reached (2.2 %). Furthermore, two (4.4 %) infants did not have enough hair for collection. There was no attrition due to infant fussiness/crying. Discussion We learned five lessons which can help to enhance reproducibility, mother's consent, and mother-infant comfort and acceptance of the procedure. The first lesson is to have the infant sit on the caregiver's lap to ensure the infant feels safe and remains relatively still. The second is to reassure caregivers by showing hair samples representing the amount to be cut as well as by clarifying no unaesthetic gaps would be visible. The third is to caress the infant's head to habituate them to the hair manipulation and to make soap bubbles as distractors. The fourth is to take extra care when securing the lock of hair for cutting because the infant scalp is thin and malleable. The fifth is to place a precision scale in the collection room to ensure the necessary weight is reached. Conclusion Our hair collection protocol developed for 12-month-old infants was deemed feasible and acceptable, filled an important literature gap concerning the absence of published protocols for infants, and will contribute to increase the replicability and collection efficiency for other research teams.
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Affiliation(s)
- Renata Pereira Defelipe
- Human Developmental Sciences Graduate Program, Center for Biological and Health Sciences, Mackenzie Presbyterian University, Rua da Consolacao, 930, Building 28, 9th floor, Sao Paulo, 01302-000, Brazil
| | - Júlia Terra
- Human Developmental Sciences Graduate Program, Center for Biological and Health Sciences, Mackenzie Presbyterian University, Rua da Consolacao, 930, Building 28, 9th floor, Sao Paulo, 01302-000, Brazil
| | - Isabella Francischelli
- Human Developmental Sciences Graduate Program, Center for Biological and Health Sciences, Mackenzie Presbyterian University, Rua da Consolacao, 930, Building 28, 9th floor, Sao Paulo, 01302-000, Brazil
| | - Beatriz Pacheco
- Human Developmental Sciences Graduate Program, Center for Biological and Health Sciences, Mackenzie Presbyterian University, Rua da Consolacao, 930, Building 28, 9th floor, Sao Paulo, 01302-000, Brazil
| | - Patrícia Pereira Araújo
- Human Developmental Sciences Graduate Program, Center for Biological and Health Sciences, Mackenzie Presbyterian University, Rua da Consolacao, 930, Building 28, 9th floor, Sao Paulo, 01302-000, Brazil
| | - Ana Raquel Mesquita
- ProChild CoLab Against Poverty and Social Exclusion, Campus de Couros, Rua de Vila Flor, n. 166, 4810-225, Guimarães, Portugal
| | - Miriam Oliveira Ribeiro
- Human Developmental Sciences Graduate Program, Center for Biological and Health Sciences, Mackenzie Presbyterian University, Rua da Consolacao, 930, Building 28, 9th floor, Sao Paulo, 01302-000, Brazil
| | - Murilo Correa
- Human Developmental Sciences Graduate Program, Center for Biological and Health Sciences, Mackenzie Presbyterian University, Rua da Consolacao, 930, Building 28, 9th floor, Sao Paulo, 01302-000, Brazil
- Human Developmental Sciences Graduate Program, Mackenzie Clinical Analysis Laboratory, Rua da Consolacao, 930, Building 28, 11th floor, Sao Paulo, 01302-000, Brazil
| | - Ana Osório
- Human Developmental Sciences Graduate Program, Center for Biological and Health Sciences, Mackenzie Presbyterian University, Rua da Consolacao, 930, Building 28, 9th floor, Sao Paulo, 01302-000, Brazil
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Orton O, Bilgin A. Maternal Depression and Sleep Problems in Early Childhood: A Meta-Analysis. Child Psychiatry Hum Dev 2024:10.1007/s10578-024-01717-y. [PMID: 38836978 DOI: 10.1007/s10578-024-01717-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/16/2024] [Indexed: 06/06/2024]
Abstract
Both prenatal and postnatal maternal depression have been associated with increased sleep problems in early childhood. However, this association is less consistent for postnatal depression, and the strength of the association remains unclear. The aim of the current study was to provide a quantitative synthesis of the literature to estimate the magnitude of the association between maternal depression and sleep problems in early childhood. Medline, PsycINFO, PsycARTICLES, Web of Science, and Scopus were searched for prospective longitudinal studies from 1970 to December 2022. Of 117 articles screened, 22 studies met the inclusion criteria. Both prenatal depression (OR = 1.82; 95% CI = 1.28-2.61) and postnatal depression (OR = 1.65; 95% CI = 1.50-1.82) were associated with increased likelihood of sleep problems in early childhood. The heterogeneity between the studies was significant and high both for prenatal (Q = 432.323; I2 = 97.456, P < .001) and postnatal depression (Q = 44.902, I2 = 65.594, P < .001), which mean that conclusions are tentative and need to be considered within the possible influence of unmeasured confounding. However, mitigating depression symptoms in mothers both during pregnancy and in the postnatal period would be an effective strategy for reducing sleep problems in children.
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Affiliation(s)
| | - Ayten Bilgin
- Department of Psychology, University of Essex, Colchester, UK.
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Guo K, Zhao X, Luo J, Ren Y, Liu Y, Yang J. Relationship of sleep with diurnal cortisol rhythm considering sleep measurement and cortisol sampling schemes. Psychoneuroendocrinology 2024; 162:106952. [PMID: 38232528 DOI: 10.1016/j.psyneuen.2023.106952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 12/29/2023] [Accepted: 12/29/2023] [Indexed: 01/19/2024]
Abstract
Information on the relationships between the previous night's sleep and the next-day diurnal cortisol rhythm is inconsistent due to confounding factors such as sleep measurements (trait/state sleep and objective/subjective sleep) and cortisol sampling schemes. Therefore, this study aimed to investigate these relationships, considering the confounding factors. College students (n = 79) wore actigraphy for 3 days to undergo an evaluation of previous night-time sleep objectively and reported their subjective sleep parameters in a sleep diary. In addition, participants provided six salivary cortisol samples daily. Furthermore, six cortisol sampling schemes were created to reflect diurnal cortisol rhythms, and two different methods were used to calculate the index of diurnal cortisol slope (DCS). A multilevel model was created to examine the impact of both trait and state sleep on next-day diurnal cortisol rhythm. The results revealed that higher objective state sleep efficiency and longer objective state total sleep time were associated with a higher cortisol awakening response (CAR). Moreover, higher objective trait sleep efficiency and longer objective trait total sleep time were associated with higher waking cortisol levels and steeper DCS. In addition, a minimum of four saliva samples were required at different time points, including upon waking, 30 min after waking, 1 h after waking, and at bedtime, to explore the relationship of sleep efficiency/total sleep time with waking cortisol, CAR, and DCS. Furthermore, the index of the peak-to-bed slope was appropriately employed to examine the relationship between sleep efficiency and DCS, whereas the wake-to-bed slope was effective for examining the relationship between total sleep time and DCS. In summary, this study clarified the relationship between sleep and next-day diurnal cortisol rhythm and suggested a cost-effective cortisol sampling schedule and calculation methods.
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Affiliation(s)
- Kaige Guo
- Faculty of Psychology, Southwest University, Chongqing 400715, China; Key Laboratory of Cognition and Personality, Southwest University, Chongqing 400715, China
| | - Xiaolin Zhao
- Faculty of Psychology, Southwest University, Chongqing 400715, China; Key Laboratory of Cognition and Personality, Southwest University, Chongqing 400715, China
| | - Jiahao Luo
- Faculty of Psychology, Southwest University, Chongqing 400715, China; Key Laboratory of Cognition and Personality, Southwest University, Chongqing 400715, China
| | - Yipeng Ren
- Faculty of Psychology, Southwest University, Chongqing 400715, China; Key Laboratory of Cognition and Personality, Southwest University, Chongqing 400715, China
| | - Yuan Liu
- Faculty of Psychology, Southwest University, Chongqing 400715, China; Key Laboratory of Cognition and Personality, Southwest University, Chongqing 400715, China.
| | - Juan Yang
- Faculty of Psychology, Southwest University, Chongqing 400715, China; Key Laboratory of Cognition and Personality, Southwest University, Chongqing 400715, China.
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Deer LK, Su C, Thwaites NA, Davis EP, Doom JR. A framework for testing pathways from prenatal stress-responsive hormones to cardiovascular disease risk. Front Endocrinol (Lausanne) 2023; 14:1111474. [PMID: 37223037 PMCID: PMC10200937 DOI: 10.3389/fendo.2023.1111474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 04/10/2023] [Indexed: 05/25/2023] Open
Abstract
Cardiovascular disease (CVD) is a leading cause of death globally, with the prevalence projected to keep rising. Risk factors for adult CVD emerge at least as early as the prenatal period. Alterations in stress-responsive hormones in the prenatal period are hypothesized to contribute to CVD in adulthood, but little is known about relations between prenatal stress-responsive hormones and early precursors of CVD, such as cardiometabolic risk and health behaviors. The current review presents a theoretical model of the relation between prenatal stress-responsive hormones and adult CVD through cardiometabolic risk markers (e.g., rapid catch-up growth, high BMI/adiposity, high blood pressure, and altered blood glucose, lipids, and metabolic hormones) and health behaviors (e.g., substance use, poor sleep, poor diet and eating behaviors, and low physical activity levels). Emerging evidence in human and non-human animal literatures suggest that altered stress-responsive hormones during gestation predict higher cardiometabolic risk and poorer health behaviors in offspring. This review additionally highlights limitations of the current literature (e.g., lack of racial/ethnic diversity, lack of examination of sex differences), and discusses future directions for this promising area of research.
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Affiliation(s)
- LillyBelle K. Deer
- Department of Psychology, University of Denver, Denver, CO, United States
| | - Chen Su
- Department of Psychology, University of Denver, Denver, CO, United States
| | | | - Elysia Poggi Davis
- Department of Psychology, University of Denver, Denver, CO, United States
- Department of Psychiatry & Human Behavior, University of California, Irvine, Irvine, CA, United States
| | - Jenalee R. Doom
- Department of Psychology, University of Denver, Denver, CO, United States
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Hernandez-Reif M, Gungordu N. Infant sleep behaviors relate to their later cognitive and language abilities and morning cortisol stress hormone levels. Infant Behav Dev 2022; 67:101700. [DOI: 10.1016/j.infbeh.2022.101700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 01/06/2022] [Accepted: 02/02/2022] [Indexed: 11/30/2022]
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Blunden S, Osborne J, King Y. Do responsive sleep interventions impact mental health in mother/infant dyads compared to extinction interventions? A pilot study. Arch Womens Ment Health 2022; 25:621-631. [PMID: 35380237 PMCID: PMC9072263 DOI: 10.1007/s00737-022-01224-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 03/15/2022] [Indexed: 11/30/2022]
Abstract
Methods to improve sleep in infants commonly involve some ignoring (extinction) but are often unpopular with mothers worried about infant distress when left to cry. Alternative more responsive methods are needed. This pilot study evaluated stress, maternal depressive symptomology and sleep in mother/infant dyads, between Responsive, Controlled Crying and Control groups. From 199 mother/infant dyads from any cultural background, 41 infants 4-12 months were randomly allocated to Responsive (RG, n = 15), Controlled Crying (CCG, n = 18) or Controls (Treatment as Usual, TAUG, n = 8), with 10 withdrawing after randomisation. Infant sleep (7-day sleep diaries) and stress (oral cortisol on two nights), maternal self-reported stress (Subjective Units of Distress, SUDS), maternal perceived infant distress (MPI-S) and symptoms of maternal depression (Edinburgh Post-natal Depression Scale, EPDS) were measured four times across 8 weeks. Sleep duration was not different between groups but Responsive woke less (p = .008). There were no differences in cortisol between groups across time points. Maternal SUDS was positively correlated with infant cortisol and MPI-S (p < 0.05) and mothers in the Responsive group were significantly less stressed (p = 0.02) and reported less symptoms of depression (p < 0.05). Findings in this small sample show Responsive methods are comparable to the extinction (Controlled Crying) in sleep outcomes but from a relational and maternal mental health perspective, are less stressful, offering families potential choices of sleep interventions.
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Affiliation(s)
- Sarah Blunden
- Appleton Institute, Central Queensland University, 44 Greenhill Rd, South Australia, Wayville, 5034, Australia.
| | - Joanne Osborne
- Appleton Institute, Central Queensland University, 44 Greenhill Rd, South Australia Wayville, 5034 Australia
| | - Yaroslava King
- Appleton Institute, Central Queensland University, 44 Greenhill Rd, South Australia Wayville, 5034 Australia
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