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Dinces SM, Rowell LN, Benson J, Hile SN, Tang AC, Annett RD. Normalized Cortisol Reactivity Predicts Future Neuropsychological Functioning in Children With Mild/Moderate Asthma. Front Psychol 2019; 10:2570. [PMID: 31803112 PMCID: PMC6877752 DOI: 10.3389/fpsyg.2019.02570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 10/30/2019] [Indexed: 12/28/2022] Open
Abstract
Cortisol reactivity to adrenocorticotropic hormone (ACTH) has been associated with neuropsychological processes including attention and memory in children with asthma. While cortisol reactivity to a psychological stressor is often considered a measure of current neuroendocrine functioning, this study examines the association of the cortisol reactivity and subsequent neuropsychological functioning. Using prospective data from the Childhood Asthma Management Program (CAMP), we explored the predictive ability of cortisol reactivity to ACTH and children's later attention and memory using traditional and an alternative cortisol reactivity (normalized cortisol) measures. Cortisol reactivity was assessed at study entry and 1-year follow-up, and neuropsychological functioning was assessed at 3-year follow-up. Cortisol reactivity was assessed through plasma cortisol concentrations collected at baseline (CORTBASELINE) and 30 min post-ACTH challenge (CORTPOST-A CTH). An alternative measure of cortisol reactivity was developed through post-ACTH stimulation cortisol, normalized by cortisol by baseline (CORTNORM -ACTH). CORT B ASELINE positively predicted year 3 attention, while CORTNORM -ACTH negatively predicted attention, suggesting convergence of cortisol variables in prediction of neuropsychological function. Year 1 CORTACTH positively predicted child memory at year 3; Year 1 CORTNORM-ACTH negatively predicted year 3 sustained attentions. These findings demonstrate that HPA reactivity, including the application of normalized cortisol reactivity, can predict subsequent neuropsychological functioning of children with mild to moderate asthma.
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Affiliation(s)
- Sarah M. Dinces
- Department of Psychology, The University of New Mexico, Albuquerque, NM, United States
| | - Lauren N. Rowell
- Department of Psychology, The University of New Mexico, Albuquerque, NM, United States
| | - Jennifer Benson
- Department of Psychology, The University of New Mexico, Albuquerque, NM, United States
| | - Sarah N. Hile
- Department of Psychology, The University of New Mexico, Albuquerque, NM, United States
| | - Akaysha C. Tang
- Faculty of Education, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Robert D. Annett
- Department of Pediatrics, University of Mississippi Medical Center, Jackson, MS, United States
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Dinces SM, Romeo RD, McEwen BS, Tang AC. Enhancing offspring hypothalamic-pituitary-adrenal (HPA) regulation via systematic novelty exposure: the influence of maternal HPA function. Front Behav Neurosci 2014; 8:204. [PMID: 24926243 PMCID: PMC4046569 DOI: 10.3389/fnbeh.2014.00204] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 05/20/2014] [Indexed: 11/17/2022] Open
Abstract
In the rat, repeated brief exposures to novelty early in life can induce long-lasting enhancements in adult cognitive, social, emotional, and neuroendocrine function. Family-to-family variations in these intervention effects on adult offspring are predicted by the mother’s ability to mount a rapid corticosterone (CORT) response to the onset of an acute stressor. Here, in Long-Evans rats, we investigated whether neonatal and adulthood novelty exposure, each individually and in combination, can enhance offspring hypothalamic-pituitary-adrenal (HPA) regulation. Using a 2 × 2 within-litter design, one half of each litter were exposed to a relatively novel non-home environment for 3-min (Neo_Novel) daily during infancy (PND 1–21) and the other half of the litter remained in the home cage (Neo_Home); we further exposed half of these two groups to early adulthood (PND 54–63) novelty exposure in an open field and the remaining siblings stayed in their home cages. Two aspects of HPA regulation were assessed: the ability to maintain a low level of resting CORT (CORTB) and the ability to mount a large rapid CORT response (CORTE) to the onset of an acute stressor. Assessment of adult offspring’s ability to regulate HPA regulation began at 370 days of age. We further investigated whether the novelty exposure effects on offspring HPA regulation are sensitive to the context of maternal HPA regulation by assessing maternal HPA regulation similarly beginning 7 days after her pups were weaned. We found that at the population level, rats receiving neonatal, but not early adulthood exposure or both, showed a greater rapid CORTE than their home-staying siblings. At the individual family level, these novelty effects are positively associated with maternal CORTE. These results suggest that early experience of novelty can enhance the offspring’s ability to mount a rapid response to environmental challenge and the success of such early life intervention is critically dependent upon the context of maternal HPA regulation.
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Affiliation(s)
- Sarah M Dinces
- Department of Psychology, University of New Mexico Albuquerque, NM, USA
| | - Russell D Romeo
- Neuroscience and Behavior Program, Department of Psychology, Barnard College of Columbia University New York, NY, USA
| | - Bruce S McEwen
- Laboratory of Neuroendocrinology, Rockefeller University New York, NY, USA
| | - Akaysha C Tang
- Department of Psychology, University of New Mexico Albuquerque, NM, USA ; Department of Neurosciences, University of New Mexico Albuquerque, NM, USA ; Program in Cognitive Neuroscience, BCS/SBE, National Science Foundation Arlington, VA, USA
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Tang AC, Reeb-Sutherland BC, Romeo RD, McEwen BS. On the causes of early life experience effects: evaluating the role of mom. Front Neuroendocrinol 2014; 35:245-51. [PMID: 24246856 DOI: 10.1016/j.yfrne.2013.11.002] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 10/24/2013] [Accepted: 11/07/2013] [Indexed: 02/03/2023]
Abstract
Early life experiences are thought to have long-lasting effects on cognitive, emotional, and social function during adulthood. Changes in neuroendocrine function, particularly the hypothalamic-pituitary-adrenal (HPA) axis, contribute to these systems-level behavioral effects. In searching for causal mechanisms underlying these early experience effects, pioneering research has demonstrated an important role for maternal care in offspring development, and this has led to two persistent ideas that permeate current research and thinking: first, environmental impact on the developing infant is mediated through maternal care behavior; second, the more care that a mother provides, the better off her offspring. While a good beginning, the reality is likely more complex. In this review, we critically examine these ideas and propose a computationally-motivated theoretical framework, and within this framework, we consider evidence supporting a hypothesis of maternal modulation. These findings may inform policy decisions in the context of child health and development.
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Affiliation(s)
- Akaysha C Tang
- Cognitive Neuroscience Program, BCS/SBE, National Science Foundation, Arlington, VA 22230, United States; Department of Psychology, University of New Mexico, Albuquerque, NM 87131, United States; Department of Neurosciences, University of New Mexico, Albuquerque, NM 87131, United States.
| | - Bethany C Reeb-Sutherland
- Department of Psychology, Florida International University, Miami, FL 33199, United States; Center for Children and Families, Florida International University, Miami, FL 33199, United States
| | - Russell D Romeo
- Neuroscience and Behavior Program, Department of Psychology, Barnard College of Columbia University, New York, NY 10027, United States
| | - Bruce S McEwen
- Laboratory of Neuroendocrinology, Rockefeller University, New York, NY 10065, United States
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Suzuki K, Ando J. Genetic and environmental structure of individual differences in hand, foot, and ear preferences: a twin study. Laterality 2013; 19:113-28. [PMID: 23634832 DOI: 10.1080/1357650x.2013.790396] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Recent studies with large sample size have reported moderate heritability of hand preference. However, little is known about genetic and environmental factors for lateral preference. We examined the genetic and environmental factors for hand, foot, and ear preferences using a twin design study. A lateral preference questionnaire was administered to twin participants (N=956). Phenotypic correlation matrices of lateral preferences were computed for monozygotic and dizygotic twin pairs, and were subjected to Cholesky decomposition to compute additive genetic and unique environmental correlation matrices. Promax rotation factor analysis of each genetic and environmental correlation matrix yielded six genetic and four environmental factors. Factor-loading patterns for these factors indicated that hand and foot lateral activities were affected by different genetic factors. By contrast, each of the four environmental factors was mainly associated with hand, foot, or ear preference. These results suggest that the genetic structure for lateral preference may be more complex than the environmental structure. In particular, hand preference may be multidimensional in terms of genetic factors.
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Affiliation(s)
- Kunitake Suzuki
- a Faculty of Human Sciences , Osaka University of Human Sciences , Japan
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Raftogianni A, Stamatakis A, Papadopoulou A, Vougas K, Anagnostopoulos AK, Stylianopoulou F, Tsangaris GT. Effects of an early experience of reward through maternal contact or its denial on laterality of protein expression in the developing rat hippocampus. PLoS One 2012; 7:e48337. [PMID: 23118990 PMCID: PMC3485191 DOI: 10.1371/journal.pone.0048337] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 09/24/2012] [Indexed: 01/01/2023] Open
Abstract
Laterality is a basic characteristic of the brain which is detectable early in life. Although early experiences affect laterality of the mature brain, there are no reports on their immediate neurochemical effects during neonatal life, which could provide evidence as to the mechanisms leading to the lateralized brain. In order to address this issue, we determined the differential protein expression profile of the left and right hippocampus of 13-day-old rat control (CTR) pups, as well as following exposure to an early experience involving either receipt (RER) or denial (DER) of the expected reward of maternal contact. Proteomic analysis was performed by 2-dimensional polyacrylamide gel electrophoresis (PAGE) followed by mass spectroscopy. The majority of proteins found to be differentially expressed either between the three experimental groups (DER, RER, CTR) or between the left and right hemisphere were cytoskeletal (34%), enzymes of energy metabolism (32%), and heat shock proteins (17%). In all three groups more proteins were up-regulated in the left compared to the right hippocampus. Tubulins were found to be most often up-regulated, always in the left hippocampus. The differential expression of β-tubulin, β-actin, dihydropyrimidinase like protein 1, glial fibrillary acidic protein (GFAP) and Heat Shock protein 70 revealed by the proteomic analysis was in general confirmed by Western blots. Exposure to the early experience affected brain asymmetry: In the RER pups the ratio of proteins up-regulated in the left hippocampus to those in the right was 1.8, while the respective ratio was 3.6 in the CTR and 3.4 in the DER. Our results could contribute to the elucidation of the cellular mechanisms mediating the effects of early experiences on the vulnerability for psychopathology, since proteins shown in our study to be differentially expressed (e.g. tubulins, dihydropyrimidinase like proteins, 14-3-3 protein, GFAP, ATP synthase, α-internexin) have also been identified in proteomic analyses of post-mortem brains from psychiatric patients.
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Affiliation(s)
- Androniki Raftogianni
- Laboratory of Biology-Biochemistry, Department of Basic Sciences, School of Health Sciences, University of Athens, Athens, Greece
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Abstract
Familiarity to the mother and the novelty afforded by the postnatal environment are two contrasting sources of neonatal influence. One hypothesis regarding their relationship is the maternal modulation hypothesis, which predicts that the same neonatal stimulation may have different effects depending on the maternal context. Here we tested this hypothesis using physical development, indexed by body weight, as an endpoint and found that, among offspring of mothers with a high initial swim-stress-induced corticosterone (CORT) response, neonatal novelty exposure induced an enhancement in early growth, and among offspring with mothers of a low initial CORT response, the same neonatal stimulation induced an impairment. At an older age, a novelty-induced increase in body weight was also found among offspring of mothers with high postnatal care reliability and a novelty-induced reduction found among offspring of mothers with low care reliability. These results support a maternal modulation of early stimulation effects on physical development and demonstrate that the maternal influence originates from multiple instead of any singular sources. These results (i) significantly extend the findings of maternal modulation from the domain of cognitive development to the domain of physical development; (ii) offer a unifying explanation for a previously inconsistent literature regarding early stimulation effects on body weight; and (iii) highlight the notion that the early experience effect involves no causal primacy but higher order interactions among the initial triggering events and subsequent events involving a multitude of maternal and nonmaternal influences.
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