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Zhao T, Li Q, Wang X, Tang B, Zhang X, Yu H, Li Z. Time-dependent effects of high-fat diet on cognition and cerebral insulin signaling: Window for recovery and potential therapeutic target. Mech Ageing Dev 2024; 220:111955. [PMID: 38852746 DOI: 10.1016/j.mad.2024.111955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 05/22/2024] [Accepted: 06/06/2024] [Indexed: 06/11/2024]
Abstract
While high-fat diet (HFD)-induced obesity is a major threat to global public health, the effect of HFD on cognition and insulin signaling during ageing remains controversial. The aim of this study was to characterize the dynamic alterations in cognition and cerebral insulin signaling during 6-month HFD consumption, and to investigate the potential therapeutic target and optimal timing to rescue obesity-related cognitive deficits. In the present study, impaired memory retention induced by 2-month HFD was recovered after 4 months on HFD. Prolonged (6-month) HFD did not further enhance tau hyperphosphorylation and β-amyloid deposition, which was consistent with the alleviation of memory retention. In brain insulin signaling, 2-month HFD increased IRS-1 and p-IRS-1(Ser307)/IRS-1, while decreasing pAKT(Ser473)/AKT, PI3K and mTOR; 4-month HFD decreased IRS-1 and pAKT(Ser473)/AKT, while increasing AKT; 6-month HFD increased IRS-1, pAKT(Ser473)/AKT, and mTOR, while decreasing p-IRS-1(Ser307)/IRS-1, PI3K and AKT. Notably, bioinformatic analysis revealed a rhythmic process presented only in 4-month HFD group, with Srebf1 emerging as a link between circadian rhythms and insulin signaling pathway. These results suggest that prolonged HFD prevents further cognitive decline and the progression of Alzheimer's disease (AD)-related pathologies during ageing. Moreover, there may be a window for recovery, in which Srebf1 acts as a self-recovery switch to address obesity-related cognitive disorders in elders.
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Affiliation(s)
- Tianchuang Zhao
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun 130021, China; College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Qi Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun 130021, China
| | - Xiaodan Wang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun 130021, China
| | - Bo Tang
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Xueming Zhang
- College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Hao Yu
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Ziyi Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun 130021, China.
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Shi Y, Wu J, Lan L, Lian Z. Interactive effects of indoor environmental factors on work performance. ERGONOMICS 2024; 67:897-912. [PMID: 37534470 DOI: 10.1080/00140139.2023.2243407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 07/22/2023] [Indexed: 08/04/2023]
Abstract
Among a variety of environmental factors, operative temperature, relative humidity and ventilation rate are generally considered to be factors that significantly affect work performance, and the interactions among these three factors were quantitatively studied in this paper. Eighteen participants were recruited to complete the neurobehavioral ability tests in different environments by central composite design, and their performance was analysed by regression fitting and multi-factor coupling analysis. By defining the interval coefficient β, the interaction effects between the factors were calculated quantitatively. The results showed that: for the performance of perception and expression tasks, there was an antagonistic effect between operative temperature and relative humidity (β = 0.50 ∼ 0.82), between operative temperature and ventilation rate (β = -0.29 to -0.38), and among the three factors (β = 0.38-0.67). There was a synergy effect between relative humidity and ventilation rate (β = 1.71-2.28). For the performance of reasoning tasks, the interaction effect among the three factors and their combinations is antagonistic effect (β = 0.67-0.83).Practitioner summary: We proposed a method to calculate the quantitative relation of multi-factor interactions. In recent ergonomics studies, more and more factors have been included. This method can well describe the synergistic or antagonistic effect of the changes of other factors on the target factors.
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Affiliation(s)
- Yongxiang Shi
- School of Design, Shanghai Jiao Tong University, Shanghai, China
| | - Jialin Wu
- School of Design, Shanghai Jiao Tong University, Shanghai, China
| | - Li Lan
- School of Design, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiwei Lian
- School of Design, Shanghai Jiao Tong University, Shanghai, China
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3
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Sax van der Weyden M, Merrigan JJ, Newman K, Hahn J, Martin J. Army Combat Fitness Test Scores Moderate Cognitive Function Improvements After a Ruck March: A Hierarchical Linear Model Approach. J Strength Cond Res 2024; 38:1314-1320. [PMID: 38662931 DOI: 10.1519/jsc.0000000000004788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
ABSTRACT Sax van der Weyden, M, Merrigan, JJ, Newman, K, Hahn, J, and Martin, J. Army Combat Fitness Test scores moderate cognitive function improvements after a ruck march: A hierarchical linear model approach. J Strength Cond Res 38(7): 1314-1320, 2024-Heavy load carriage is a common task for military personnel and can lead to undue physical and mental fatigue. The purpose of this study was to assess effects of load carriage on cognitive function (CF) and the role individual characteristics play in CF responses. Anthropometrics/body composition, demographics, and Army Combat Fitness Test (ACFT) scores were gathered from 47 Reserve Officers' Training Corps cadets. Cadets' CF was assessed through the concentration task grid (CTG) before (preruck), immediately after (postruck), and 3 weeks after (follow-up) a 16.09- to 19.31-km ruck march. Hierarchical linear modeling was used, with α < 0.05. The final model revealed growth, or improvement, in CF from preruck to postruck with growth decelerating, but still improved, at follow-up. The load carriage bout improved CF in most cadets, with average growth from 5.67- to 7.20-grid squares found. However, postruck CF did not return to the same level as a controlled follow-up (9.69). Sex (2.46, female), familiarity with the CTG (1.99), ACFT total scores (0.009), and relative ruck mass (-0.09) were all significant predictors of postruck CF. Army Combat Fitness Test scores (0.008) were also significant predictors of the slope between preruck and postruck, such that an ACFT score 59 points above average would result in a 1-grid square greater improvement in CF postruck. The significance of ACFT scores, lower relative ruck mass, and familiarization highlights the importance physical and mental preparation for desirable CF outcomes after occupational tasks.
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Affiliation(s)
- Megan Sax van der Weyden
- Sports Medicine Assessment Research & Testing (SMART) Laboratory, George Mason University, Fairfax, Virginia
| | | | - Kayleigh Newman
- Sports Medicine Assessment Research & Testing (SMART) Laboratory, George Mason University, Fairfax, Virginia
| | - Joseph Hahn
- Sports Medicine Assessment Research & Testing (SMART) Laboratory, George Mason University, Fairfax, Virginia
| | - Joel Martin
- Sports Medicine Assessment Research & Testing (SMART) Laboratory, George Mason University, Fairfax, Virginia
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Liddie JM, Vieira CLZ, Coull BA, Sparrow D, Koutrakis P, Weisskopf MG. Associations between solar and geomagnetic activity and cognitive function in the Normative Aging study. ENVIRONMENT INTERNATIONAL 2024; 187:108666. [PMID: 38648690 PMCID: PMC11146138 DOI: 10.1016/j.envint.2024.108666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 03/22/2024] [Accepted: 04/15/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Studies show that changes in solar and geomagnetic activity (SGA) influence melatonin secretion and the autonomic nervous system. We evaluated associations between solar and geomagnetic activity and cognitive function in the Normative Aging Study from 1992 to 2013. METHODS We used logistic and linear generalized estimating equations and regressions to evaluate the associations between moving averages of sunspot number (SSN) and Kp index (a measure of geomagnetic activity) and a binary measure for Mini-Mental State Examination (MMSE) scores (≤25 or > 25) and six other cognitive tests as continuous measures, combined into one global composite score and considered separately. RESULTS A one-IQR increase in same-day SSN and Kp index were associated with 17% (95% CI: 3%, 34%) and 19% (95% CI: 4%, 36%) increases in the odds of low MMSE score. We observed small increases in the global cognitive score with increasing SSN, although we observed decreases specifically in relation to the backwards digit span test. CONCLUSIONS Periods of high SGA were associated with cognitive function. SGA may not equally impact all aspects of cognitive function, as evidenced by differences in associations observed for the MMSE, global cognitive score, and individual cognitive tests. Given that much of the pathology of cognitive decline in the elderly remains unexplained, studies specifically targeting decline and with longer follow-up periods are warranted.
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Affiliation(s)
- Jahred M Liddie
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Carolina L Z Vieira
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Brent A Coull
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - David Sparrow
- VA Normative Aging Study, Veterans Affairs Boston Healthcare System, Boston, MA, USA; Department of Medicine, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Marc G Weisskopf
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Bettencourt C, Pires L, Almeida F, Vilar M, Cruz H, Leitão J, Allen Gomes A. Chronotype, Time of Day, and Children's Cognitive Performance in Remote Neuropsychological Assessment. Behav Sci (Basel) 2024; 14:310. [PMID: 38667106 PMCID: PMC11047315 DOI: 10.3390/bs14040310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 04/06/2024] [Accepted: 04/08/2024] [Indexed: 04/29/2024] Open
Abstract
Research on the influence of chronotype and time of day (TOD) on cognitive performance, especially in children, is limited. We explored potential interactive effects, hypothesizing that performance differs when comparing preferred vs. non-preferred TOD. In total, 76 morning-type (MT = 37) or evening-type (ET = 39) children from the third and fourth grades (48.7% girls; M age = 8.05; SD age = 0.51), identified through the Children Chronotype Questionnaire, completed two 30-min neuropsychological assessment sessions via videoconference on the first (9:00) or last hour (16:00) of the school day. The protocol included neuropsychological tests targeting memory, language, and attention/executive domains. The results revealed an interactive effect of medium size between chronotype and TOD on a Rapid Alternating Stimulus (Naming) Task. MT and ET performed faster in asynchrony conditions (morning for ET; afternoon for MT). Additionally, ET outperformed MT in a Backward Digit Span Task, irrespective of TOD. TOD also influenced performance on an Alternating Verbal Fluency Task, with both MT and ET children performing better in the morning. These results underscore the importance of chronotype and TOD in children's cognitive performance, particularly in working memory and verbal fluency. Children assessed during non-preferred TOD exhibited better performance on some cognitive tasks, challenging the assumption that optimal times always yield superior results.
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Affiliation(s)
- Catarina Bettencourt
- Faculty of Psychology and Educational Sciences, University of Coimbra, 3000-115 Coimbra, Portugal; (L.P.); (F.A.); (M.V.); (J.L.); (A.A.G.)
- Centre for Research in Neuropsychology and Cognitive Behavioral Intervention, University of Coimbra, 3000-115 Coimbra, Portugal
- Laboratory of Chronopsychology and Cognitive Systems (ChronCog), University of Coimbra, 3000-115 Coimbra, Portugal
| | - Luís Pires
- Faculty of Psychology and Educational Sciences, University of Coimbra, 3000-115 Coimbra, Portugal; (L.P.); (F.A.); (M.V.); (J.L.); (A.A.G.)
- Centre for Research in Neuropsychology and Cognitive Behavioral Intervention, University of Coimbra, 3000-115 Coimbra, Portugal
- Laboratory of Chronopsychology and Cognitive Systems (ChronCog), University of Coimbra, 3000-115 Coimbra, Portugal
- Department of Psychology and Education, Faculty of Human and Social Sciences, University of Beira Interior, 6200-209 Covilhã, Portugal
| | - Filipa Almeida
- Faculty of Psychology and Educational Sciences, University of Coimbra, 3000-115 Coimbra, Portugal; (L.P.); (F.A.); (M.V.); (J.L.); (A.A.G.)
- Centre for Research in Neuropsychology and Cognitive Behavioral Intervention, University of Coimbra, 3000-115 Coimbra, Portugal
- Laboratory of Chronopsychology and Cognitive Systems (ChronCog), University of Coimbra, 3000-115 Coimbra, Portugal
| | - Manuela Vilar
- Faculty of Psychology and Educational Sciences, University of Coimbra, 3000-115 Coimbra, Portugal; (L.P.); (F.A.); (M.V.); (J.L.); (A.A.G.)
- Centre for Research in Neuropsychology and Cognitive Behavioral Intervention, University of Coimbra, 3000-115 Coimbra, Portugal
| | - Hugo Cruz
- Interdisciplinary Research Centre for Education and Development (CeiED), Lusófona University, 1700-284 Lisboa, Portugal;
| | - José Leitão
- Faculty of Psychology and Educational Sciences, University of Coimbra, 3000-115 Coimbra, Portugal; (L.P.); (F.A.); (M.V.); (J.L.); (A.A.G.)
- Centre for Research in Neuropsychology and Cognitive Behavioral Intervention, University of Coimbra, 3000-115 Coimbra, Portugal
- Laboratory of Chronopsychology and Cognitive Systems (ChronCog), University of Coimbra, 3000-115 Coimbra, Portugal
| | - Ana Allen Gomes
- Faculty of Psychology and Educational Sciences, University of Coimbra, 3000-115 Coimbra, Portugal; (L.P.); (F.A.); (M.V.); (J.L.); (A.A.G.)
- Centre for Research in Neuropsychology and Cognitive Behavioral Intervention, University of Coimbra, 3000-115 Coimbra, Portugal
- Laboratory of Chronopsychology and Cognitive Systems (ChronCog), University of Coimbra, 3000-115 Coimbra, Portugal
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Mahoney HL, Schmidt TM. The cognitive impact of light: illuminating ipRGC circuit mechanisms. Nat Rev Neurosci 2024; 25:159-175. [PMID: 38279030 DOI: 10.1038/s41583-023-00788-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2023] [Indexed: 01/28/2024]
Abstract
Ever-present in our environments, light entrains circadian rhythms over long timescales, influencing daily activity patterns, health and performance. Increasing evidence indicates that light also acts independently of the circadian system to directly impact physiology and behaviour, including cognition. Exposure to light stimulates brain areas involved in cognition and appears to improve a broad range of cognitive functions. However, the extent of these effects and their mechanisms are unknown. Intrinsically photosensitive retinal ganglion cells (ipRGCs) have emerged as the primary conduit through which light impacts non-image-forming behaviours and are a prime candidate for mediating the direct effects of light on cognition. Here, we review the current state of understanding of these effects in humans and mice, and the tools available to uncover circuit-level and photoreceptor-specific mechanisms. We also address current barriers to progress in this area. Current and future efforts to unravel the circuits through which light influences cognitive functions may inform the tailoring of lighting landscapes to optimize health and cognitive function.
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Affiliation(s)
- Heather L Mahoney
- Department of Neurobiology, Northwestern University, Evanston, IL, USA.
| | - Tiffany M Schmidt
- Department of Neurobiology, Northwestern University, Evanston, IL, USA.
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Bauer N, Liu D, Nguyen T, Wang B. Unraveling the Interplay of Dopamine, Carbon Monoxide, and Heme Oxygenase in Neuromodulation and Cognition. ACS Chem Neurosci 2024; 15:400-407. [PMID: 38214656 PMCID: PMC10853931 DOI: 10.1021/acschemneuro.3c00742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/13/2023] [Accepted: 12/19/2023] [Indexed: 01/13/2024] Open
Abstract
The dopaminergic system plays important roles in neuromodulation, including prominent roles in complex neurological functions such as cognition, reward, motivation, and memory. Understandably, the highly complex nature of such physiological functions means that their regulation is intertwined with other signaling pathways, as has been demonstrated by numerous studies. Contrary to its public perception of being poisonous at all concentrations, carbon monoxide (CO) is produced endogenously from heme degradation by heme oxygenase (HO) as part of the physiological process of red blood cell turnover. Physiological concentrations of CO can reach high micromolar ranges in the hemoglobin bound form. Low-dose CO has shown therapeutic effects in numerous animal models, including traumatic brain injury via engaging various hemoprotein targets. As such, the HO-CO axis has been shown to offer beneficial effects in organ protection, anti-inflammation, and neuroprotection, among many others. Further, a large number of publications have shown the interactions among CO, HO, and the dopaminergic system. In this review, we critically examine such experimental evidence in a holistic fashion and in the context of a possible dopamine-HO-CO signaling axis. We hope that this Perspective will stimulate additional investigations into the molecular connectivity related to this possible axis and open doors to the development of novel therapeutics that impact the dopaminergic system.
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Affiliation(s)
- Nicola Bauer
- Department of Chemistry and
Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Dongning Liu
- Department of Chemistry and
Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - TanPhat Nguyen
- Department of Chemistry and
Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Binghe Wang
- Department of Chemistry and
Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
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Wang W, Tong Y, Yin X, Bao Y. Diurnal rhythm of temporal reproduction in the visual field. Chronobiol Int 2024; 41:304-308. [PMID: 38230410 DOI: 10.1080/07420528.2024.2305657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 01/09/2024] [Indexed: 01/18/2024]
Abstract
The perception of short-term temporal intervals has been suggested to be modulated by the circadian clock, yet systematic studies investigating this relationship are scarce. In this study, we examined the diurnal variations in temporal reproduction around 2-3 seconds with different stimulus eccentricities. Eighteen female participants completed a visual temporal reproduction task at nine time points throughout the day. The results showed significant interactions between clock time and duration, implying diurnal rhythmic variations in temporal reproduction. The reproduction of shorter duration (1500 ms) was overestimated with its highest accuracy in the morning, while the reproduction of longer duration (4500 ms) was underestimated with an approximate 3-hour advancement in acrophase than the shorter duration (1500 ms). No significant eccentricity effects were observed, suggesting homogenous temporal processing across visual fields. The results suggest the presence of diurnal rhythms in the perception of short-term temporal durations, confirming a two-process model of time perception operating within a 2-3 second time window.
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Affiliation(s)
- Wei Wang
- Institute of Medical Psychology, Faculty of Medicine, Ludwig Maximilian University of Munich, Munich, Germany
| | - Yu Tong
- School of Psychological and Cognitive Sciences, Peking University, Beijing, China
| | - Xuanzi Yin
- Institute of Medical Psychology, Faculty of Medicine, Ludwig Maximilian University of Munich, Munich, Germany
| | - Yan Bao
- School of Psychological and Cognitive Sciences, Peking University, Beijing, China
- Beijing Key Laboratory of Behavior and Mental Health, Peking University, Beijing, China
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Keihani A, Mayeli A, Ferrarelli F. Circadian Rhythm Changes in Healthy Aging and Mild Cognitive Impairment. Adv Biol (Weinh) 2023; 7:e2200237. [PMID: 36403250 PMCID: PMC10199146 DOI: 10.1002/adbi.202200237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/01/2022] [Indexed: 11/21/2022]
Abstract
Disruptions in circadian rhythms can occur in healthy aging; however, these changes are more severe and pervasive in individuals with age-related and neurodegenerative diseases, such as dementia. Circadian rhythm alterations are also present in preclinical stages of dementia, for example, in patients with mild cognitive impairments (MCI); thus, providing a unique window of opportunity for early intervention in neurodegenerative disorders. Nonetheless, there is a lack of studies examining the association between relevant changes in circadian rhythms and their relationship with cognitive dysfunctions in MCI individuals. In this review, circadian system alterations occurring in MCI patients are examined compared to healthy aging individuals while also considering their association with MCI neurocognitive alterations. The main findings are that abnormal circadian changes in rest-activity, core body temperature, melatonin, and cortisol rhythms appear in the MCI stage and that these circadian rhythm disruptions are associated with some of the neurocognitive deficits observed in MCI patients. In addition, preliminary evidence indicates that interventions aimed at restoring regular circadian rhythms may prevent or halt the progress of neurodegenerative diseases and mitigate their related cognitive impairments. Future longitudinal studies with repeated follow-up assessments are needed to establish the translational potential of these findings in clinical practice.
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Affiliation(s)
- Ahmadreza Keihani
- Department of Psychiatry, University of Pittsburgh, 3501 Forbes Ave, Pittsburgh, PA, 15213, USA
| | - Ahmad Mayeli
- Department of Psychiatry, University of Pittsburgh, 3501 Forbes Ave, Pittsburgh, PA, 15213, USA
| | - Fabio Ferrarelli
- Department of Psychiatry, University of Pittsburgh, 3501 Forbes Ave, Pittsburgh, PA, 15213, USA
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10
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Carlson EJ, Wilckens KA, Wheeler ME. The Interactive Role of Sleep and Circadian Rhythms in Episodic Memory in Older Adults. J Gerontol A Biol Sci Med Sci 2023; 78:1844-1852. [PMID: 37167439 PMCID: PMC10562893 DOI: 10.1093/gerona/glad112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Indexed: 05/13/2023] Open
Abstract
Adequate sleep is essential for healthy physical, emotional, and cognitive functioning, including memory. However, sleep ability worsens with increasing age. Older adults on average have shorter sleep durations and more disrupted sleep compared with younger adults. Age-related sleep changes are thought to contribute to age-related deficits in episodic memory. Nonetheless, the nature of the relationship between sleep and episodic memory deficits in older adults is still unclear. Further complicating this relationship are age-related changes in circadian rhythms such as the shift in chronotype toward morningness and decreased circadian stability, which may influence memory abilities as well. Most sleep and cognitive aging studies do not account for circadian factors, making it unclear whether age-related and sleep-related episodic memory deficits are partly driven by interactions with circadian rhythms. This review will focus on age-related changes in sleep and circadian rhythms and evidence that these factors interact to affect episodic memory, specifically encoding and retrieval. Open questions, methodological considerations, and clinical implications for diagnosis and monitoring of age-related memory impairments are discussed.
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Affiliation(s)
- Elyse J Carlson
- School of Psychology, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Kristine A Wilckens
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Mark E Wheeler
- School of Psychology, Georgia Institute of Technology, Atlanta, Georgia, USA
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11
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Steffey MA, Scharf VF, Risselada M, Buote NJ, Griffon D, Winter AL, Zamprogno H. A narrative review of occupational scheduling that impacts fatigue and recovery relevant to veterinarian well-being. THE CANADIAN VETERINARY JOURNAL = LA REVUE VETERINAIRE CANADIENNE 2023; 64:674-683. [PMID: 37397701 PMCID: PMC10286151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Background Sleep insufficiency is a worldwide affliction with serious implications for mental and physical health. Occupational factors play a large role in determining sleep habits. Healthcare workers are particularly susceptible to job-mediated sleep insufficiency and inadequate rest in general. Little is published on sleep practices among veterinarians, and overall recognition of the impacts of inadequate rest within the veterinary profession is poor. Objectives and procedures This review describes occupational factors affecting sufficiency of rest and recovery, reviews veterinary-specific and relevant adjacent literature pertaining to sleep patterns, and discusses potential solutions for addressing occupational schedules contributing to sleep insufficiency and inadequate rest. Online databases were searched to extract contemporary literature pertaining to sleep, insufficient rest, and occupational factors, with a focus on veterinary medicine and other healthcare sectors. Results Occupational factors leading to inadequate rest among healthcare workers include excessive workloads, extended workdays, cumulative days of heavy work hours, and after-hours on-call duty. These factors are prevalent within the veterinary profession and may contribute to widespread insufficient rest and the resulting negative impacts on health and well-being among veterinarians. Conclusion and clinical relevance Sufficient sleep quantity and quality are critical to physical and mental health and are negatively affected by many aspects of the veterinary profession. Critical review of current strategies employed in clinical practice is essential to promote professional fulfillment, health, and well-being among veterinarians.
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Affiliation(s)
- Michele A Steffey
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California - Davis, 1 Shields Avenue, Davis, California 95616, USA (Steffey); Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, North Carolina 27607, USA (Scharf ); Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, 625 Harrison Street, West Lafayette, Indiana 47907, USA (Risselada); Department of Clinical Sciences, Cornell University College of Veterinary Medicine, 930 Campus Road, Ithaca, New York 14853, USA (Buote); College of Veterinary Medicine, Western University of Health Sciences, 309 East Second Street, Pomona, California 91766, USA (Griffon); Merck Manuals Department, Merck Sharp & Dohme Corp., Rahway, New Jersey 07065, USA (Winter); Surgery Department, Evidensia Oslo Dyresykehus, Ensjøveien 14, 0655, Oslo, Norway (Zamprogno)
| | - Valery F Scharf
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California - Davis, 1 Shields Avenue, Davis, California 95616, USA (Steffey); Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, North Carolina 27607, USA (Scharf ); Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, 625 Harrison Street, West Lafayette, Indiana 47907, USA (Risselada); Department of Clinical Sciences, Cornell University College of Veterinary Medicine, 930 Campus Road, Ithaca, New York 14853, USA (Buote); College of Veterinary Medicine, Western University of Health Sciences, 309 East Second Street, Pomona, California 91766, USA (Griffon); Merck Manuals Department, Merck Sharp & Dohme Corp., Rahway, New Jersey 07065, USA (Winter); Surgery Department, Evidensia Oslo Dyresykehus, Ensjøveien 14, 0655, Oslo, Norway (Zamprogno)
| | - Marije Risselada
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California - Davis, 1 Shields Avenue, Davis, California 95616, USA (Steffey); Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, North Carolina 27607, USA (Scharf ); Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, 625 Harrison Street, West Lafayette, Indiana 47907, USA (Risselada); Department of Clinical Sciences, Cornell University College of Veterinary Medicine, 930 Campus Road, Ithaca, New York 14853, USA (Buote); College of Veterinary Medicine, Western University of Health Sciences, 309 East Second Street, Pomona, California 91766, USA (Griffon); Merck Manuals Department, Merck Sharp & Dohme Corp., Rahway, New Jersey 07065, USA (Winter); Surgery Department, Evidensia Oslo Dyresykehus, Ensjøveien 14, 0655, Oslo, Norway (Zamprogno)
| | - Nicole J Buote
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California - Davis, 1 Shields Avenue, Davis, California 95616, USA (Steffey); Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, North Carolina 27607, USA (Scharf ); Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, 625 Harrison Street, West Lafayette, Indiana 47907, USA (Risselada); Department of Clinical Sciences, Cornell University College of Veterinary Medicine, 930 Campus Road, Ithaca, New York 14853, USA (Buote); College of Veterinary Medicine, Western University of Health Sciences, 309 East Second Street, Pomona, California 91766, USA (Griffon); Merck Manuals Department, Merck Sharp & Dohme Corp., Rahway, New Jersey 07065, USA (Winter); Surgery Department, Evidensia Oslo Dyresykehus, Ensjøveien 14, 0655, Oslo, Norway (Zamprogno)
| | - Dominique Griffon
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California - Davis, 1 Shields Avenue, Davis, California 95616, USA (Steffey); Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, North Carolina 27607, USA (Scharf ); Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, 625 Harrison Street, West Lafayette, Indiana 47907, USA (Risselada); Department of Clinical Sciences, Cornell University College of Veterinary Medicine, 930 Campus Road, Ithaca, New York 14853, USA (Buote); College of Veterinary Medicine, Western University of Health Sciences, 309 East Second Street, Pomona, California 91766, USA (Griffon); Merck Manuals Department, Merck Sharp & Dohme Corp., Rahway, New Jersey 07065, USA (Winter); Surgery Department, Evidensia Oslo Dyresykehus, Ensjøveien 14, 0655, Oslo, Norway (Zamprogno)
| | - Alexandra L Winter
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California - Davis, 1 Shields Avenue, Davis, California 95616, USA (Steffey); Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, North Carolina 27607, USA (Scharf ); Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, 625 Harrison Street, West Lafayette, Indiana 47907, USA (Risselada); Department of Clinical Sciences, Cornell University College of Veterinary Medicine, 930 Campus Road, Ithaca, New York 14853, USA (Buote); College of Veterinary Medicine, Western University of Health Sciences, 309 East Second Street, Pomona, California 91766, USA (Griffon); Merck Manuals Department, Merck Sharp & Dohme Corp., Rahway, New Jersey 07065, USA (Winter); Surgery Department, Evidensia Oslo Dyresykehus, Ensjøveien 14, 0655, Oslo, Norway (Zamprogno)
| | - Helia Zamprogno
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California - Davis, 1 Shields Avenue, Davis, California 95616, USA (Steffey); Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, North Carolina 27607, USA (Scharf ); Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, 625 Harrison Street, West Lafayette, Indiana 47907, USA (Risselada); Department of Clinical Sciences, Cornell University College of Veterinary Medicine, 930 Campus Road, Ithaca, New York 14853, USA (Buote); College of Veterinary Medicine, Western University of Health Sciences, 309 East Second Street, Pomona, California 91766, USA (Griffon); Merck Manuals Department, Merck Sharp & Dohme Corp., Rahway, New Jersey 07065, USA (Winter); Surgery Department, Evidensia Oslo Dyresykehus, Ensjøveien 14, 0655, Oslo, Norway (Zamprogno)
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Chen P, Ban W, Wang W, You Y, Yang Z. The Devastating Effects of Sleep Deprivation on Memory: Lessons from Rodent Models. Clocks Sleep 2023; 5:276-294. [PMID: 37218868 DOI: 10.3390/clockssleep5020022] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/11/2023] [Accepted: 05/11/2023] [Indexed: 05/24/2023] Open
Abstract
In this narrative review article, we discuss the role of sleep deprivation (SD) in memory processing in rodent models. Numerous studies have examined the effects of SD on memory, with the majority showing that sleep disorders negatively affect memory. Currently, a consensus has not been established on which damage mechanism is the most appropriate. This critical issue in the neuroscience of sleep remains largely unknown. This review article aims to elucidate the mechanisms that underlie the damaging effects of SD on memory. It also proposes a scientific solution that might explain some findings. We have chosen to summarize literature that is both representative and comprehensive, as well as innovative in its approach. We examined the effects of SD on memory, including synaptic plasticity, neuritis, oxidative stress, and neurotransmitters. Results provide valuable insights into the mechanisms by which SD impairs memory function.
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Affiliation(s)
- Pinqiu Chen
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Weikang Ban
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Wenyan Wang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Yuyang You
- School of Automation, Beijing Institute of Technology, Beijing 100081, China
| | - Zhihong Yang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
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13
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Asadpoordezaki Z, Coogan AN, Henley BM. Chronobiology of Parkinson's disease: Past, present and future. Eur J Neurosci 2023; 57:178-200. [PMID: 36342744 PMCID: PMC10099399 DOI: 10.1111/ejn.15859] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 11/09/2022]
Abstract
Parkinson's disease is a neurodegenerative disorder predominately affecting midbrain dopaminergic neurons that results in a broad range of motor and non-motor symptoms. Sleep complaints are among the most common non-motor symptoms, even in the prodromal period. Sleep alterations in Parkinson's disease patients may be associated with dysregulation of circadian rhythms, intrinsic 24-h cycles that control essential physiological functions, or with side effects from levodopa medication and physical and mental health challenges. The impact of circadian dysregulation on sleep disturbances in Parkinson's disease is not fully understood; as such, we review the systems, cellular and molecular mechanisms that may underlie circadian perturbations in Parkinson's disease. We also discuss the potential benefits of chronobiology-based personalized medicine in the management of Parkinson's disease both in terms of behavioural and pharmacological interventions. We propose that a fuller understanding of circadian clock function may shed important new light on the aetiology and symptomatology of the disease and may allow for improvements in the quality of life for the millions of people with Parkinson's disease.
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Affiliation(s)
- Ziba Asadpoordezaki
- Department of Psychology, Maynooth University, Maynooth, Co Kildare, Ireland.,Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co Kildare, Ireland
| | - Andrew N Coogan
- Department of Psychology, Maynooth University, Maynooth, Co Kildare, Ireland.,Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co Kildare, Ireland
| | - Beverley M Henley
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co Kildare, Ireland
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14
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Maeneja R, Ferreira IS, Silva CR, Abreu AM. Cognitive Benefits of Exercise: Is There a Time-of-Day Effect? Healthcare (Basel) 2022; 10:healthcare10091766. [PMID: 36141378 PMCID: PMC9498776 DOI: 10.3390/healthcare10091766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
It is well established that physical activity benefits cognition. Further, the time of day one engages in physical activity has been suggested to influence cognition. Here, we aimed to understand if there is a time-of-day effect (morning or afternoon) of physical activity on cognition, i.e., if exercising in the morning or afternoon might bring greater cognitive benefits. A total of 56 participants were allocated to one of two groups with the same baseline cognitive performance as well as fitness level (International Physical Activity Questionnaire—IPAQ): 27 to the morning intervention (M) group; and 29 to the afternoon intervention (A) group. In both groups, the participants engaged in an intermittent recovery test (Yo-yo), 4 times a week for 12 weeks. All participants were assessed with the d2 Test of Attention and the Borg scale of perceived exertion pre- and post- acute and chronic intervention. After the first bout of exercise and after 12 weeks, we observed cognitive improvements both in the M and A groups. Surprisingly, we do not find differences between the time of day regarding cognitive benefits. Our results do not support the existence of a time-of-day effect for the attentional cognitive benefits of exercise.
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Affiliation(s)
- Reinaldo Maeneja
- Institute of Health Sciences, Universidade Católica Portuguesa, Palma de Cima, 1649-023 Lisbon, Portugal
- Faculdade de Ciências da Saúde e Desporto, Universidade Save, Maxixe 1301, Mozambique
| | - Inês S. Ferreira
- Faculty of Social Sciences and Technology, Universidade Europeia, 1500-210 Lisbon, Portugal
- Center for Research in Neuropsychology and Cognitive and Behavioral Intervention (CINEICC), Faculdade de Psicologia e de Ciências da Educação (FPCE), Universidade de Coimbra, 3000-115 Coimbra, Portugal
- Psychological Assessment and Psychometrics Laboratory (PsyAssessmentLab), Faculdade de Psicologia e de Ciências da Educação (FPCE), Universidade de Coimbra, 3000-115 Coimbra, Portugal
| | - Cláudia R. Silva
- Institute of Health Sciences, Universidade Católica Portuguesa, Palma de Cima, 1649-023 Lisbon, Portugal
- Escola Superior de Saúde de Alcoitão, 2649-506 Alcoitão, Portugal
| | - Ana Maria Abreu
- Institute of Health Sciences, Universidade Católica Portuguesa, Palma de Cima, 1649-023 Lisbon, Portugal
- Center for Interdisciplinary Research in Health, Universidade Católica Portuguesa, 1300-477 Lisbon, Portugal
- Correspondence:
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Zhu D, Blondel W, Qu J, Wang X, Yang S. Preface to the special issue on "Biomedical Optics". FRONTIERS OF OPTOELECTRONICS 2020; 13:305-306. [PMID: 36641570 PMCID: PMC9743943 DOI: 10.1007/s12200-020-1132-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Indexed: 06/17/2023]
Affiliation(s)
- Dan Zhu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Walter Blondel
- Université de Lorraine, CNRS, CRAN UMR 7039, Nancy, 54000 France
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060 China
| | - Xueding Wang
- Department of Radiology, University of Michigan, Ann Arbor, MI 48109-0553 USA
| | - Sihua Yang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, 510631 China
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