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Choi S, Harrison T. The Roles of Stress, Sleep, and Fatigue on Depression in People with Visual Impairments. Biol Res Nurs 2023; 25:550-558. [PMID: 36930752 DOI: 10.1177/10998004231165022] [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] [Indexed: 03/19/2023]
Abstract
The study aimed to investigate the mediating effect of fatigue and the moderating effect of sleep quality on stress and depressive symptoms among people with visual impairments. A total of 155 participants completed the online survey. The Perceived Stress Scale, the Fatigue Symptom Inventory, the Centre for Epidemiological Studies-Depression Inventory (CES-D), and the Pittsburgh Sleep Quality Index (PSQI) were used. Descriptive analysis, correlations, and moderated mediation modelling were conducted using R software. From the mediator variable (FSI) model (F = 22.427, R2 = 56.5, p < .001) and the dependent variable (CES-D) model (F = 35.912, R2 = 70.5, p < .001), after controlling for age, sex, employment, and education, sleep quality positively predicted fatigue levels (β = 2.422, p = .009), and fatigue positively predicted depressive symptoms (β = .152, p < .001). Sleep quality is an essential component of psychological well-being in people with visual impairments.
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Affiliation(s)
- Soyoung Choi
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Tracie Harrison
- Alice An Loh Endowed Chair in Geriatric Nursing, College of Nursing, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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2
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Schwartz PB, Walcheck MT, Nukaya M, Pavelec DM, Matkowskyj KA, Ronnekleiv-Kelly SM. Chronic jetlag accelerates pancreatic neoplasia in conditional Kras-mutant mice. Chronobiol Int 2023; 40:417-437. [PMID: 36912021 PMCID: PMC10337099 DOI: 10.1080/07420528.2023.2186122] [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: 11/02/2022] [Revised: 02/14/2023] [Accepted: 02/25/2023] [Indexed: 03/14/2023]
Abstract
Misalignment of the circadian clock compared to environmental cues causes circadian desynchrony, which is pervasive in humans. Clock misalignment can lead to various pathologies including obesity and diabetes, both of which are associated with pancreatic ductal adenocarcinoma - a devastating cancer with an 80% five-year mortality rate. Although circadian desynchrony is associated with an increased risk of several solid-organ cancers, the correlation between clock misalignment and pancreas cancer is unclear. Using a chronic jetlag model, we investigated the impact of clock misalignment on pancreas cancer initiation in mice harboring a pancreas-specific activated Kras mutation. We found that chronic jetlag accelerated the development of pancreatic cancer precursor lesions, with a concomitant increase in precursor lesion grade. Cell-autonomous knock-out of the clock in pancreatic epithelial cells of Kras-mutant mice demonstrated no acceleration of precursor lesion formation, indicating non-cell-autonomous clock dysfunction was responsible for the expedited tumor development. Therefore, we applied single-cell RNA sequencing over time and identified fibroblasts as the cell population manifesting the greatest clock-dependent changes, with enrichment of specific cancer-associated fibroblast pathways due to circadian misalignment.
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Affiliation(s)
- Patrick B Schwartz
- Department of Surgery, Division of Surgical Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Morgan T Walcheck
- Department of Surgery, Division of Surgical Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Manabu Nukaya
- Department of Surgery, Division of Surgical Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | | | - Kristina A Matkowskyj
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
- William S Middleton Memorial Veterans Hospital, Madison, Wisconsin
- University of Wisconsin Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Sean M Ronnekleiv-Kelly
- Department of Surgery, Division of Surgical Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI
- University of Wisconsin Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI
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Gong S, Bou Kheir G, Kabarriti A, Khosla L, Gong F, Van Laecke E, Weiss J, Everaert K, Hervé F. 'Nocturomics': transition to omics-driven biomarkers of nocturia, a systematic review and future prospects. BJU Int 2023; 131:675-684. [PMID: 36683403 DOI: 10.1111/bju.15975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To systematically review studies that investigated different biomarkers of nocturia, including omics-driven biomarkers or 'Nocturomics'. MATERIALS AND METHODS PubMed® , Scopus® , and Embase® were searched systematically in May 2022 for research papers on biomarkers in physiological fluids and tissues from patients with nocturia. A distinction was made between biomarkers or candidates discovered by omics techniques, referred to as omics-driven biomarkers, and classical biomarkers, measured by standard laboratory techniques and mostly thought from pathophysiological hypothesis. RESULTS A total of 13 studies with 18 881 patients in total were included, eight of which focused on classical biomarkers including: atrial natriuretic peptide (ANP), B-type natriuretic peptide (BNP), C-reactive protein (CRP), aldosterone, and melatonin. Five were 'Nocturomics', including one that assessed the microbiome and identified 27 faecal and eight urinary bacteria correlated with nocturia; and four studies that identified candidate metabolomic biomarkers, including fatty acid metabolites, serotonin, glycerol, lauric acid, thiaproline, and imidazolelactic acid among others. To date, no biomarker is recommended in clinical practice. Nocturomics are in an embryonic phase of conception but are developing quickly. Although candidate biomarkers are being identified, none of them are yet validated on a large sample, although some preclinical studies have shown a probable role of fatty acid metabolites as a possible biomarker of circadian rhythm and chronotherapy. CONCLUSION Further research is needed to validate biomarkers for nocturia within the framework of a diagnostic and therapeutic precision medicine perspective. We hope this study provides a summary of the current biomarker discoveries associated with nocturia and details future prospects for omics-driven biomarkers.
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Affiliation(s)
- Susan Gong
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, NY, USA
| | - George Bou Kheir
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - Abdo Kabarriti
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, NY, USA
| | - Lakshay Khosla
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, NY, USA
| | - Fred Gong
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, NY, USA
| | - Erik Van Laecke
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - Jeffrey Weiss
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, NY, USA
| | - Karel Everaert
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - François Hervé
- Department of Urology, Ghent University Hospital, Ghent, Belgium
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Lassmann Ł, Pollis M, Żółtowska A, Manfredini D. Gut Bless Your Pain—Roles of the Gut Microbiota, Sleep, and Melatonin in Chronic Orofacial Pain and Depression. Biomedicines 2022; 10:biomedicines10071528. [PMID: 35884835 PMCID: PMC9313154 DOI: 10.3390/biomedicines10071528] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 11/18/2022] Open
Abstract
Background. Increased attention has been paid to the gut–brain axis recently, but little is known so far regarding how this translates into pain susceptibility. Aim. The aim of this review is to determine whether gastroenterological disorders and sleep disorders (directly or indirectly) contribute to an increased susceptibility to depression and chronic orofacial pain. Method. A search was performed in the U.S. National Library of Medicine (PubMed) database in order to find studies published before 19 December 2021. We used the following terms: gut microbiome, OR sleep quality, OR melatonin, OR GERD, OR IBS, AND: depression OR chronic pain, in different configurations. Only papers in English were selected. Given the large number of papers retrieved in the search, their findings were described and organized narratively. Results. A link exists between sleep disorders and gastroenterological disorders, which, by adversely affecting the psyche and increasing inflammation, disturb the metabolism of tryptophan and cause excessive microglial activation, leading to increased susceptibility to pain sensation and depression. Conclusions. Pain therapists should pay close attention to sleep and gastrointestinal disorders in patients with chronic pain and depression.
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Affiliation(s)
- Łukasz Lassmann
- Dental Sense Medicover, 80-283 Gdańsk, Poland
- Correspondence:
| | - Matteo Pollis
- Department of Medical Biotechnology, School of Dentistry, University of Siena, 53100 Siena, Italy; (M.P.); (D.M.)
| | - Agata Żółtowska
- Department of Conservative Dentistry, Faculty of Medicine, Medical University of Gdańsk, 80-210 Gdańsk, Poland;
| | - Daniele Manfredini
- Department of Medical Biotechnology, School of Dentistry, University of Siena, 53100 Siena, Italy; (M.P.); (D.M.)
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Hu S, Luo L, Bian X, Liu RH, Zhao S, Chen Y, Sun K, Jiang J, Liu Z, Zeng L. Pu-erh Tea Restored Circadian Rhythm Disruption by Regulating Tryptophan Metabolism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:5610-5623. [PMID: 35475616 DOI: 10.1021/acs.jafc.2c01883] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Pu-erh tea is a healthy beverage rich in phytochemicals, and its effect on the risk of inducing circadian rhythm disorders (CRD) is unclear. In this study, healthy mice were given water or 0.25% (w/v) Pu-erh tea for 7 weeks, followed by a 40 day disruption of the light/dark cycle. CRD caused dysregulation of neurotransmitter secretion and clock gene oscillations, intestinal inflammation, and disruption of intestinal microbes and metabolites. Pu-erh tea boosted the indole and 5-hydroxytryptamine pathways of tryptophan metabolism via the gut-liver-brain axis. Furthermore, its metabolites (e.g., IAA, Indole, 5-HT) enhanced hepatic glycolipid metabolism and down-regulated intestinal oxidative stress by improving the brain hormone release. Tryptophan metabolites and bile acids also promoted liver lipid metabolism and inhibited intestinal inflammation (MyD88/NF-κB) via the enterohepatic circulation. Collectively, 0.25% (w/v) Pu-erh tea has the potential to prevent CRD by promoting indole and 5-HT pathways of tryptophan metabolism and signaling interactions in the gut-liver-brain axis.
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Affiliation(s)
- Shanshan Hu
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China
| | - Liyong Luo
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China
| | - Xintong Bian
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine Chongqing Medical University, Chongqing 400016, China
| | - Rui Hai Liu
- Department of Food Science, Cornell University, Ithaca, New York 14850-7201, United States
| | - Sibo Zhao
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China
| | - Yu Chen
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China
| | - Kang Sun
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China
| | - Jielin Jiang
- Menghai Tea Factory·TAETEA Group, Xishuangbanna Dai Autonomous Prefecture, Yunnan 666200, China
| | - Zhonghua Liu
- Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China
| | - Liang Zeng
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Southwest University, Beibei, Chongqing 400715, China
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Hu S, Luo L, Zeng L. Tea combats circadian rhythm disorder syndrome via the gut-liver-brain axis: potential mechanisms speculated. Crit Rev Food Sci Nutr 2022; 63:7126-7147. [PMID: 35187990 DOI: 10.1080/10408398.2022.2040945] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Circadian rhythm is an intrinsic mechanism developed by organisms to adapt to external environmental signals. Nowadays, owing to the job and after-work entertainment, staying up late - Circadian rhythm disorders (CRD) are common. CRD is linked to the development of fatty liver, type 2 diabetes, and chronic gastroenteritis, which affecting the body's metabolic and inflammatory responses via multi-organ crosstalk (gut-liver-brain axis, etc.). However, studies on the mechanisms of multi-organ interactions by CRD are still weak. Current studies on therapeutic agents for CRD remain inadequate, and phytochemicals have been shown to alleviate CRD-induced syndromes that may be used for CRD-therapy in the future. Tea, a popular phytochemical-rich beverage, reduces glucolipid metabolism and inflammation. But it is immature and unclear in the mechanisms of alleviation of CRD-mediated syndrome. Here, we have analyzed the threat of CRD to hosts and their offspring' health from the perspective of the "gut-liver-brain" axis. The potential mechanisms of tea in alleviating CRD were further explored. It might be by interfering with bile acid metabolism, tryptophan metabolism, and G protein-coupled receptors, with FXR, AHR, and GPCR as potential targets. We hope to provide new perspectives on the role of tea in the prevention and mitigation of CRD.HighlightsThe review highlights the health challenges of CRD via the gut-liver-brain axis.CRD research should focus on the health effects on healthy models and its offspring.Tea may prevent CRD by regulating bile acid, tryptophan, and GPCR.Potential targets for tea prevention and mitigation of CRD include FXR, AHR and GPCR.A comprehensive assessment mechanism for tea in improving CRD should be established.
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Affiliation(s)
- Shanshan Hu
- College of Food Science, Southwest University, Beibei, Chongqing, People's Republic of China
| | - Liyong Luo
- College of Food Science, Southwest University, Beibei, Chongqing, People's Republic of China
| | - Liang Zeng
- College of Food Science, Southwest University, Beibei, Chongqing, People's Republic of China
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Li A, Zhang X, Guo Y, Wang J, Hao Y, Gu Y, Jie Y. The Association Between Dry Eye and Sleep Disorders: The Evidence and Possible Mechanisms. Nat Sci Sleep 2022; 14:2203-2212. [PMID: 36545475 PMCID: PMC9762265 DOI: 10.2147/nss.s378751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 11/01/2022] [Indexed: 12/16/2022] Open
Abstract
Dry eye is a disease that severely affects patients' quality of life, increasing the global burden on public health and finance. There is growing evidence that a poor lifestyle is a significant risk factor for dry eye. Along with the development of society, sleep, as a way of life, is also constantly changing. The main manifestations of sleep disorders are reduced sleep time, circadian rhythm disturbances, and sleep breathing disturbances. Sleep disorders and their secondary systemic diseases have attracted wide attention in recent years. This review mainly explored the correlation between sleep disorders and dry eye, and found that sleep-related problems and other factors potentially leading from sleep disorders could be critical factors for dry eye. These results suggest that ophthalmologists should pay attention to the sleep health problems in patients with dry eye, and we hope that this paper can provide help for future research in this field.
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Affiliation(s)
- Ao Li
- Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Xiaozhao Zhang
- Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yihan Guo
- Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jingyi Wang
- Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yiran Hao
- Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yixuan Gu
- Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Ying Jie
- Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, People's Republic of China
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8
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Role of circadian rhythm and impact of circadian rhythm disturbance on the metabolism and disease. J Cardiovasc Pharmacol 2021; 79:254-263. [PMID: 34840256 DOI: 10.1097/fjc.0000000000001178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 10/23/2021] [Indexed: 11/25/2022]
Abstract
ABSTRACT Molecular circadian clocks exist in almost all cells of the organism and operate for approximately 24 h, maintain the normal physiological and behavioral body processes and regulate metabolism of many cells related to a variety of disease states. Circadian rhythms regulate metabolism, mainly including neurotransmitters, hormones, amino acids and lipids. Circadian misalignment is related to metabolic syndromes, such as obesity, diabetes and hypertension, which have reached an alarming level in modern society. We reviewed the mechanism of the circadian clock and the interaction between circadian rhythm and metabolism, as well as circadian rhythm disturbance on the metabolism of hypertension, obesity and diabetes. Finally, we discuss how to use the circadian rhythm to prevent diseases. Thus, this review is a micro to macro discussion from the perspective of circadian rhythm and aims to provide basic ideas for circadian rhythm research and disease therapies.
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9
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Time-Restricted Feeding in Mice Prevents the Disruption of the Peripheral Circadian Clocks and Its Metabolic Impact during Chronic Jetlag. Nutrients 2021; 13:nu13113846. [PMID: 34836101 PMCID: PMC8622682 DOI: 10.3390/nu13113846] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 01/17/2023] Open
Abstract
We used time-restricted feeding (TRF) to investigate whether microbial metabolites and the hunger hormone ghrelin can become the dominant entraining factor during chronic jetlag to prevent disruption of the master and peripheral clocks, in order to promote health. Therefore, hypothalamic clock gene and Agrp/Npy mRNA expression were measured in mice that were either chronically jetlagged and fed ad libitum, jetlagged and fed a TRF diet, or not jetlagged and fed a TRF diet. Fecal short-chain fatty acid (SCFA) concentrations, plasma ghrelin and corticosterone levels, and colonic clock gene mRNA expression were measured. Preventing the disruption of the food intake pattern during chronic jetlag using TRF restored the rhythmicity in hypothalamic clock gene mRNA expression of Reverbα but not of Arntl. TRF countered the changes in plasma ghrelin levels and in hypothalamic Npy mRNA expression induced by chronic jetlag, thereby reestablishing the food intake pattern. Increase in body mass induced by chronic jetlag was prevented. Alterations in diurnal fluctuations in fecal SCFAs during chronic jetlag were prevented thereby re-entraining the rhythmic expression of peripheral clock genes. In conclusion, TRF during chronodisruption re-entrains the rhythms in clock gene expression and signals from the gut that regulate food intake to normalize body homeostasis.
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10
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Eating habits are associated with subjective sleep quality outcomes among university students: findings of a cross-sectional study. Sleep Breath 2021; 26:1365-1376. [PMID: 34613509 DOI: 10.1007/s11325-021-02506-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/23/2021] [Accepted: 09/30/2021] [Indexed: 12/28/2022]
Abstract
PURPOSE This study investigated the relationships between eating habits and sleep quality among university students. METHODS In a cross-sectional study, university students completed a self-report questionnaire to assess eating habits and meal timing. We assessed subjective sleep quality using the Pittsburgh Sleep Quality Index (PSQI) questionnaire and examined the associations between eating habits and overall sleep quality and its components. RESULTS Four hundred ninety-eight students participated in the study. Students who used to skip breakfast, ate late-night snacks, and replaced meals with snacks were at 1.20 times, 1.24 times, and 1.25 times higher likelihood of having poor overall sleep quality, respectively. Multiple logistic regression analysis showed that skipping breakfast (r = - 0.111, P = 0.007), late-night snacks (r = - 0.109, P = 0.007), replacing meals with snacks (r = - 0.126, P = 0.002), and irregular mealtimes (r = - 0.094, P = 0.018) were the best correlates with poor sleep quality. After adjustment to demographic variables, replacing meals with snacks followed by skipping breakfast were the best independent associations with poor sleep quality by the PSQI. CONCLUSIONS Eating habits and meal timing were significantly associated with sleep quality. We speculate that healthy eating habits may lead to improved sleep quality and sleep components among university students.
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11
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van Galen KA, Ter Horst KW, Serlie MJ. Serotonin, food intake, and obesity. Obes Rev 2021; 22:e13210. [PMID: 33559362 PMCID: PMC8243944 DOI: 10.1111/obr.13210] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/28/2020] [Accepted: 12/28/2020] [Indexed: 12/16/2022]
Abstract
The role of serotonin in food intake has been studied for decades. Food intake is mainly regulated by two brain circuitries: (i) the homeostatic circuitry, which matches energy intake to energy expenditure, and (ii) the hedonic circuitry, which is involved in rewarding and motivational aspects of energy consumption. In the homeostatic circuitry, serotonergic signaling contributes to the integration of metabolic signals that convey the body's energy status and facilitates the ability to suppress food intake when homeostatic needs have been met. In the hedonic circuitry, serotonergic signaling may reduce reward-related, motivational food consumption. In contrast, peripherally acting serotonin promotes energy absorption and storage. Disturbed serotonergic signaling is associated with obesity, emphasizing the importance to understand the role of serotonergic signaling in food intake. However, unraveling the serotonin-mediated regulation of food intake is complex, as the effects of serotonergic signaling in different brain regions depend on the regional expression of serotonin receptor subtypes and downstream effects via connections to other brain regions. We therefore provide an overview of the effects of serotonergic signaling in brain regions of the homeostatic and hedonic regulatory systems on food intake. Furthermore, we discuss the disturbances in serotonergic signaling in obesity and its potential therapeutic implications.
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Affiliation(s)
- Katy A van Galen
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Kasper W Ter Horst
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Mireille J Serlie
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, Amsterdam, The Netherlands
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12
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Siemann JK, Grueter BA, McMahon DG. Rhythms, Reward, and Blues: Consequences of Circadian Photoperiod on Affective and Reward Circuit Function. Neuroscience 2020; 457:220-234. [PMID: 33385488 DOI: 10.1016/j.neuroscience.2020.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 02/01/2023]
Abstract
Circadian disruptions, along with altered affective and reward states, are commonly associated with psychiatric disorders. In addition to genetics, the enduring influence of environmental factors in programming neural networks is of increased interest in assessing the underpinnings of mental health. The duration of daylight or photoperiod is known to impact both the serotonin and dopamine systems, which are implicated in mood and reward-based disorders. This review first examines the effects of circadian disruption and photoperiod in the serotonin system in both human and preclinical studies. We next highlight how brain regions crucial for the serotoninergic system (i.e., dorsal raphe nucleus; DRN), and dopaminergic (i.e., nucleus accumbens; NAc and ventral tegmental area; VTA) system are intertwined in overlapping circuitry, and play influential roles in the pathology of mood and reward-based disorders. We then focus on human and animal studies that demonstrate the impact of circadian factors on the dopaminergic system. Lastly, we discuss how environmental factors such as circadian photoperiod can impact the neural circuits that are responsible for regulating affective and reward states, offering novel insights into the biological mechanisms underlying the pathophysiology, systems, and therapeutic treatments necessary for mood and reward-based disorders.
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Affiliation(s)
- Justin K Siemann
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA; Kennedy Center for Research on Human Development, Vanderbilt University, Nashville, TN 37235, USA
| | - Brad A Grueter
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37235, USA; Department of Anesthesiology, Vanderbilt University, Nashville, TN 37235, USA; Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, TN 37235, USA; Kennedy Center for Research on Human Development, Vanderbilt University, Nashville, TN 37235, USA
| | - Douglas G McMahon
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA; Department of Pharmacology, Vanderbilt University, Nashville, TN 37235, USA; Kennedy Center for Research on Human Development, Vanderbilt University, Nashville, TN 37235, USA.
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13
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Witchey SK, Al Samara L, Horman BM, Stapleton HM, Patisaul HB. Perinatal exposure to FireMaster® 550 (FM550), brominated or organophosphate flame retardants produces sex and compound specific effects on adult Wistar rat socioemotional behavior. Horm Behav 2020; 126:104853. [PMID: 32949556 PMCID: PMC7726037 DOI: 10.1016/j.yhbeh.2020.104853] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/31/2020] [Accepted: 09/10/2020] [Indexed: 12/11/2022]
Abstract
Firemaster 550 (FM550) is a flame retardant (FR) mixture that has become one of the most commonly used FRs in household items such as foam-based furniture and baby products. Because this mixture readily leaches from products, contamination of the environment and human tissues is widespread. Prior work by us and others has reported sex-specific behavioral deficits in rodents and zebrafish following early life exposure. In an effort to understand the mechanisms by which these behavioral effects occur, here we explored the effects of its constituents on behavioral outcomes previously shown to be altered by developmental FM550 exposure. The FM550 commercial mixture is composed of two brominated compounds (BFR) and two organophosphate compounds (OPFRs) at almost equivalent proportions. Both the BFR and the OPFR components are differentially metabolized and structurally distinct, but similar to known neurotoxicants. Here we examined adult Wistar rat offspring socioemotional behaviors following perinatal exposure (oral, to the dam) to vehicle, 2000 μg/day FM550, 1000 μg/day BFR or 1000 μg/day OPFR from gestation day 0 to weaning. Beginning on postnatal day 65 offspring from all groups were subjected to a series of behavioral tasks including open field, elevated plus maze, marble burying, social interaction tests, and running wheel. Effects were exposure-, sex- and task-specific, with BFR exposure resulting in the most consistent behavioral deficits. Overall, exposed females showed more deficits compared to males across all dose groups and tasks. These findings help elucidate how different classes of flame retardants, independently and as a mixture, contribute to sex-specific behavioral effects of exposure.
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Affiliation(s)
- Shannah K Witchey
- Department of Biological Sciences, NC State University, Raleigh, NC 27695, United States of America; Center for Human Health and the Environment, NC State University, Raleigh, NC 27695, United States of America
| | - Loujain Al Samara
- Department of Biological Sciences, NC State University, Raleigh, NC 27695, United States of America
| | - Brian M Horman
- Department of Biological Sciences, NC State University, Raleigh, NC 27695, United States of America
| | - Heather M Stapleton
- Nicholas School of the Environment, Levine Science Research Center, Duke University, Durham, NC 27710, United States of America
| | - Heather B Patisaul
- Department of Biological Sciences, NC State University, Raleigh, NC 27695, United States of America; Center for Human Health and the Environment, NC State University, Raleigh, NC 27695, United States of America.
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Gallardo CM, Martin CS, Steele AD. Food Anticipatory Activity on Circadian Time Scales Is Not Dependent on Central Serotonin: Evidence From Tryptophan Hydroxylase-2 and Serotonin Transporter Knockout Mice. Front Mol Neurosci 2020; 13:534238. [PMID: 33041772 PMCID: PMC7517832 DOI: 10.3389/fnmol.2020.534238] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 08/13/2020] [Indexed: 01/14/2023] Open
Abstract
A number of studies implicate biogenic amines in regulating circadian rhythms. In particular, dopamine and serotonin influence the entrainment of circadian rhythms to daily food availability. To study circadian entrainment to feeding, food availability is typically restricted to a short period within the light cycle daily. This results in a notable increase in pre-meal activity, termed "food anticipatory activity" (FAA), which typically develops within about 1 week of scheduled feeding. Several studies have implicated serotonin as a negative regulator of FAA: (1) aged rats treated with serotonin 5-HT2 and 3 receptor antagonists showed enhanced FAA, (2) mice lacking for the 2C serotonin receptor demonstrate enhanced FAA, and (3) pharmacologically increased serotonin levels suppressed FAA while decreased serotonin levels enhanced FAA in mice. We sought to confirm and extend these findings using genetic models with impairments in central serotonin production or re-uptake, but were surprised to find that both serotonin transporter (Slc6a4) and tryptophan hydroxylase-2 knockout mice demonstrated a normal behavioral response to timed, calorie restricted feeding. Our data suggest that FAA is largely independent of central serotonin and/or serotonin reuptake and that serotonin may not be a robust negative regulator of FAA.
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Affiliation(s)
- Christian M Gallardo
- Division of Biology, California Institute of Technology, Pasadena, CA, United States
| | - Camille S Martin
- Department of Biological Sciences, California State Polytechnic University Pomona, Pomona, CA, United States
| | - Andrew D Steele
- Department of Biological Sciences, California State Polytechnic University Pomona, Pomona, CA, United States
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15
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Hartsock MJ, Spencer RL. Memory and the circadian system: Identifying candidate mechanisms by which local clocks in the brain may regulate synaptic plasticity. Neurosci Biobehav Rev 2020; 118:134-162. [PMID: 32712278 DOI: 10.1016/j.neubiorev.2020.07.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 07/14/2020] [Accepted: 07/18/2020] [Indexed: 12/11/2022]
Abstract
The circadian system is an endogenous biological network responsible for coordinating near-24-h cycles in behavior and physiology with daily timing cues from the external environment. In this review, we explore how the circadian system regulates memory formation, retention, and recall. Circadian rhythms in these memory processes may arise through several endogenous pathways, and recent work highlights the importance of genetic timekeepers found locally within tissues, called local clocks. We evaluate the circadian memory literature for evidence of local clock involvement in memory, identifying potential nodes for direct interactions between local clock components and mechanisms of synaptic plasticity. Our discussion illustrates how local clocks may pervasively modulate neuronal plastic capacity, a phenomenon that we designate here as circadian metaplasticity. We suggest that this function of local clocks supports the temporal optimization of memory processes, illuminating the potential for circadian therapeutic strategies in the prevention and treatment of memory impairment.
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Affiliation(s)
- Matthew J Hartsock
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, Colorado 80309, United States.
| | - Robert L Spencer
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, Colorado 80309, United States.
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16
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Light and Circadian Signaling Pathway in Pregnancy: Programming of Adult Health and Disease. Int J Mol Sci 2020; 21:ijms21062232. [PMID: 32210175 PMCID: PMC7139376 DOI: 10.3390/ijms21062232] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/22/2020] [Accepted: 03/22/2020] [Indexed: 12/12/2022] Open
Abstract
Light is a crucial environmental signal that affects elements of human health, including the entrainment of circadian rhythms. A suboptimal environment during pregnancy can increase the risk of offspring developing a wide range of chronic diseases in later life. Circadian rhythm disruption in pregnant women may have deleterious consequences for their progeny. In the modern world, maternal chronodisruption can be caused by shift work, jet travel across time zones, mistimed eating, and excessive artificial light exposure at night. However, the impact of maternal chronodisruption on the developmental programming of various chronic diseases remains largely unknown. In this review, we outline the impact of light, the circadian clock, and circadian signaling pathways in pregnancy and fetal development. Additionally, we show how to induce maternal chronodisruption in animal models, examine emerging research demonstrating long-term negative implications for offspring health following maternal chronodisruption, and summarize current evidence related to light and circadian signaling pathway targeted therapies in pregnancy to prevent the development of chronic diseases in offspring.
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Nishimura Y, Mabuchi K, Omura N, Igarashi A, Miura M, Mima N, Negishi H, Morimoto K, Takamata A. Fluoxetine Mimics the Anorectic Action of Estrogen and Its Regulation of Circadian Feeding in Ovariectomized Female Rats. Nutrients 2020; 12:nu12030849. [PMID: 32235766 PMCID: PMC7146435 DOI: 10.3390/nu12030849] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/17/2020] [Accepted: 03/19/2020] [Indexed: 01/09/2023] Open
Abstract
Our previous study demonstrated that chronic estrogen replacement in ovariectomized rats reduces food intake and augments c-Fos expression in the suprachiasmatic nucleus (SCN), specifically during the light phase. Here, we hypothesized that serotonergic neurons in the central nervous system (CNS), which have anorectic action and play a role in regulating circadian rhythm, mediate the light phase-specific anorectic action of estrogen, and that selective serotonin reuptake inhibitors (SSRIs) mimic the hypophagic action of estrogen. Female Wistar rats were ovariectomized and treated with estradiol (E2) or cholesterol by subcutaneously implanting a silicon capsule containing E2 or cholesterol. Then, half of the cholesterol-treated rats were injected with the SSRI fluoxetine (5 mg/kg) (FLX group), while the remaining rats in the cholesterol-treated group (CON group) and all those in the E2 group were injected with saline subcutaneously twice daily at the onsets of the light and dark phases. Both E2 and FLX reduced food intake during the light phase but not the dark phase, and reduced body weight gain. In addition, both E2 and FLX augmented the c-Fos expression in the SCN, specifically during the light phase. These data indicate that FLX exerts estrogen-like antiobesity and hypophagic actions by modifying circadian feeding patterns, and suggest that estrogen regulates circadian feeding rhythm via serotonergic neurons in the CNS.
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Affiliation(s)
- Yuri Nishimura
- Department of Environmental Health, Nara Women’s University, Kitauoya Nishimachi, Nara 630-8506, Japan; (Y.N.); (K.M.); (N.O.); (A.I.); (M.M.); (N.M.); (H.N.); (K.M.)
- Sussex Neuroscience, School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK
| | - Kaori Mabuchi
- Department of Environmental Health, Nara Women’s University, Kitauoya Nishimachi, Nara 630-8506, Japan; (Y.N.); (K.M.); (N.O.); (A.I.); (M.M.); (N.M.); (H.N.); (K.M.)
| | - Natsumi Omura
- Department of Environmental Health, Nara Women’s University, Kitauoya Nishimachi, Nara 630-8506, Japan; (Y.N.); (K.M.); (N.O.); (A.I.); (M.M.); (N.M.); (H.N.); (K.M.)
| | - Ayako Igarashi
- Department of Environmental Health, Nara Women’s University, Kitauoya Nishimachi, Nara 630-8506, Japan; (Y.N.); (K.M.); (N.O.); (A.I.); (M.M.); (N.M.); (H.N.); (K.M.)
| | - Megumi Miura
- Department of Environmental Health, Nara Women’s University, Kitauoya Nishimachi, Nara 630-8506, Japan; (Y.N.); (K.M.); (N.O.); (A.I.); (M.M.); (N.M.); (H.N.); (K.M.)
| | - Nanako Mima
- Department of Environmental Health, Nara Women’s University, Kitauoya Nishimachi, Nara 630-8506, Japan; (Y.N.); (K.M.); (N.O.); (A.I.); (M.M.); (N.M.); (H.N.); (K.M.)
| | - Hiroko Negishi
- Department of Environmental Health, Nara Women’s University, Kitauoya Nishimachi, Nara 630-8506, Japan; (Y.N.); (K.M.); (N.O.); (A.I.); (M.M.); (N.M.); (H.N.); (K.M.)
| | - Keiko Morimoto
- Department of Environmental Health, Nara Women’s University, Kitauoya Nishimachi, Nara 630-8506, Japan; (Y.N.); (K.M.); (N.O.); (A.I.); (M.M.); (N.M.); (H.N.); (K.M.)
| | - Akira Takamata
- Department of Environmental Health, Nara Women’s University, Kitauoya Nishimachi, Nara 630-8506, Japan; (Y.N.); (K.M.); (N.O.); (A.I.); (M.M.); (N.M.); (H.N.); (K.M.)
- Correspondence: ; Tel./Fax: +81-742-20-3469
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Tavares GA, do Amaral Almeida LC, de Souza JA, de Souza FL, Feitosa Braz GR, Silva BT, da Silva Santos AM, Lagranha CJ, de Souza SL. Early weaning modulates eating behavior and promotes hypofunction of the serotonergic (5HT) system in juvenile male rats. Int J Dev Neurosci 2020; 80:209-219. [PMID: 32083748 DOI: 10.1002/jdn.10018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/07/2020] [Accepted: 02/16/2020] [Indexed: 12/23/2022] Open
Abstract
Early life stress (ELS) has been associated with developmental impairments. Early weaning (EW) is a postnatal stress model consisting of interruption of lactation and maternal care. The 5HT-system has been associated with neurobehavioral modulations promoted by ELS. Thus, the present work aims to investigate the effects of early weaning on feeding behavior and serotonergic system of juvenile male rats. For this, rats were submitted to early (PND15) or natural (PND30) weaning and had the body weight, food intake in circadian phases, and food intake in response to fenfluramine assessed. mRNA expression of serotoninergic receptors (5HT1A and 5HT2C) and transporter (SERT) was assessed in the hypothalamus and brainstem, as well as NPY and POMC mRNA expression in hypothalamus. The results show that early weaning promoted changes in the percentage of weight gain during lactation period and increase in body weight at PND40. It was also observed that EW promoted increase and decrease in food intake in light and dark phase, respectively, and leads to a decreased action of fenfluramine on inhibition of food intake. In addition, early weaning promoted increased NPY and SERT mRNA expression in the hypothalamus and 5HT2C in the brainstem. Together, the data indicate that the stress caused by early weaning impairs the eating behavior of juvenile male rats through hypofunction of the 5HT-system.
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Affiliation(s)
- Gabriel Araújo Tavares
- Graduate Program of Nutrition, Federal University of Pernambuco, Recife, Brazil.,Nantes Université, INRAE, UMR 1280, PhAN, Nantes, France
| | | | - Julliet Araújo de Souza
- Graduate Program of Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Brazil
| | | | - Glauber Rudá Feitosa Braz
- Graduate Program of Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Brazil
| | - Bruna Times Silva
- Graduate Program of Nutrition, Federal University of Pernambuco, Recife, Brazil
| | | | - Cláudia Jacques Lagranha
- Graduate Program of Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Brazil.,Academic Center of Vitória-CAV, Federal University of Pernambuco, Vitória de Santo Antão, Brazil
| | - Sandra Lopes de Souza
- Graduate Program of Nutrition, Federal University of Pernambuco, Recife, Brazil.,Graduate Program of Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Brazil
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19
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Kira S, Mitsui T, Miyamoto T, Ihara T, Nakagomi H, Hashimoto Y, Takamatsu H, Tanahashi M, Takeda M, Tsuchiya S, Sawada N, Takeda M. Urinary metabolites identified using metabolomic analysis as potential biomarkers of nocturia in elderly men. World J Urol 2019; 38:2563-2569. [DOI: 10.1007/s00345-019-03042-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 11/25/2019] [Indexed: 12/31/2022] Open
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Impact of Prenatal Selective Serotonin Reuptake Inhibitor Antidepressant Exposure and Maternal Mood on Physical Activity, Dietary Intake, and Markers of Adiposity at Age 6 Years. J Dev Behav Pediatr 2019; 40:266-274. [PMID: 30950906 DOI: 10.1097/dbp.0000000000000658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE This study assessed associations between maternal depressive symptoms, prenatal maternal antidepressant treatment, maternal estimates of child physical activity (PA), dietary total intake, and markers of adiposity. METHODS Mothers and their children (N = 116) were part of a longitudinal cohort study examining the effects of prenatal exposure to selective serotonin reuptake inhibitor (SSRI) antidepressants and maternal depression (SSRI exposed, n = 42; nonexposed, n = 74). Maternal depression symptoms were assessed prenatally and postnatally. At 6 years, PA was assessed using maternal report, 3-day dietary total intakes were obtained using objective records of intake, portion sizes, and product brand names, and birth weight, weight, height, and waist circumference (WC) at age 6 years were also collected. Body mass index (BMI) and WC z-scores standardized for sex and age were computed as markers of adiposity. RESULTS Children with SSRI exposure had lower levels of PA than children without SSRI exposure. Total dietary energy intakes did not vary between exposure groups. SSRI exposure was not associated with BMI or WC z-scores of the children. Importantly, although lower birth weight was observed in SSRI-exposed children, differences did not remain, accounting for gestational age. CONCLUSION Although SSRI exposure was associated with lower estimates of PA, such exposure was not associated with markers of adiposity or total diet energy intake at age 6 years. The implications across subsequent measures in childhood remain to be determined.
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21
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Parkar SG, Kalsbeek A, Cheeseman JF. Potential Role for the Gut Microbiota in Modulating Host Circadian Rhythms and Metabolic Health. Microorganisms 2019; 7:microorganisms7020041. [PMID: 30709031 PMCID: PMC6406615 DOI: 10.3390/microorganisms7020041] [Citation(s) in RCA: 146] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 01/26/2019] [Accepted: 01/28/2019] [Indexed: 02/07/2023] Open
Abstract
This article reviews the current evidence associating gut microbiota with factors that impact host circadian-metabolic axis, such as light/dark cycles, sleep/wake cycles, diet, and eating patterns. We examine how gut bacteria possess their own daily rhythmicity in terms of composition, their localization to intestinal niches, and functions. We review evidence that gut bacteria modulate host rhythms via microbial metabolites such as butyrate, polyphenolic derivatives, vitamins, and amines. Lifestyle stressors such as altered sleep and eating patterns that may disturb the host circadian system also influence the gut microbiome. The consequent disruptions to microbiota-mediated functions such as decreased conjugation of bile acids or increased production of hydrogen sulfide and the resultant decreased production of butyrate, in turn affect substrate oxidation and energy regulation in the host. Thus, disturbances in microbiome rhythms may at least partially contribute to an increased risk of obesity and metabolic syndrome associated with insufficient sleep and circadian misalignment. Good sleep and a healthy diet appear to be essential for maintaining gut microbial balance. Manipulating daily rhythms of gut microbial abundance and activity may therefore hold promise for a chrononutrition-based approach to consolidate host circadian rhythms and metabolic homeorhesis.
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Affiliation(s)
- Shanthi G Parkar
- The New Zealand Institute for Plant & Food Research Limited, Private Bag 11600, Palmerston North 4442, New Zealand.
| | - Andries Kalsbeek
- Department of Hypothalamic Integration Mechanisms, Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Meibergdreef 47, 1105BA Amsterdam, The Netherlands.
- Department of Endocrinology and Metabolism, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands.
| | - James F Cheeseman
- Department of Anaesthesiology, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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22
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Risperidone But Not Quetiapine Treatment Is Associated With Increased Appetite But Not Satiety Hormones in Children During An Oral Glucose Tolerance Test: A Pilot Study. J Clin Psychopharmacol 2018; 38:622-626. [PMID: 30300290 DOI: 10.1097/jcp.0000000000000956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Second-generation antipsychotics (SGAs) are commonly used to treat children with mental health conditions (MHCs) but are associated with adverse effects including obesity, hypertension, dyslipidemia, and type 2 diabetes. The mechanisms underlying these complications are unknown, but it has been suggested that SGAs increase appetite leading to weight gain. The present objective was to perform a pilot study to investigate appetite and satiety hormones in SGA-treated (risperidone or quetiapine) and SGA-naive children with similar mental health conditions. METHODS Oral glucose tolerance tests (OGTTs) were conducted in SGA-naive (n = 18), risperidone-treated (n = 20), and quetiapine-treated (n = 16) children recruited from the British Columbia Children's Hospital Psychiatry Department. Over 5 time-points during the OGTT, appetite questionnaires using a visual analogue scale were administered, and blood was collected to measure ghrelin, peptide YY, glucose-dependent insulinotropic polypeptide, glucagon-like protein 1, leptin, and adiponectin. Mixed model analyses were conducted to examine between-group differences. RESULTS The children were similar in age, psychiatric diagnosis, and global assessment of functioning scores. Body mass index z-scores were also similar between groups. Appetite was increased during the OGTT in the risperidone-treated compared with the SGA-naive group for 2 questions ("How strong is your desire to eat"; P = 0.003 and "How much food do you think you can eat"; P = 0.028). No differences in satiety hormones were observed between the 3 groups. CONCLUSIONS Risperidone treatment in youth is associated with elevated appetite during an OGTT, with no differences in gut peptides or adipocytokines to explain risperidone's effect on appetite. Further research is needed to explore other mediators of weight gain and metabolic dysfunction in SGA-treated youth.
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23
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Carneiro IBC, Toscano AE, Lacerda DC, da Cunha MDSB, de Castro RM, Deiró TCBDJ, Medeiros JMB. L-tryptophan administration and increase in cerebral serotonin levels: Systematic review. Eur J Pharmacol 2018; 836:129-135. [PMID: 30098308 DOI: 10.1016/j.ejphar.2018.08.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/05/2018] [Accepted: 08/06/2018] [Indexed: 11/27/2022]
Abstract
The amino acid tryptophan (2-Amino-3-(lH-indol-3-yl)-propanoic acid; Trp) is a precursor of the neurotransmitter serotonin (5-hydroxytryptamine; 5-HT) that performs various brain functions. The administration of Trp is used in experimental studies to manipulate the serotonergic system, however the dose of Trp required to raise brain 5-HT levels is controversial. The aim of this study was to systemically review the effect of the administration of different doses of Trp on cerebral 5-HT levels. Two independent authors conducted a systematic review in the electronic databases. Twenty-five studies were included in the present review. Trp was administered orally, intraperitoneally or subcutaneous in adult animals. The brain 5-HT levels elevated after Trp administration in different intensities, dependent of the brain region evaluated and the time of administration. Further studies are needed to assess the dose-response of Trp administration to brain 5-HT levels.
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Affiliation(s)
- Isadora Braga Contreiras Carneiro
- Graduate Program in Nutrition, Federal University of Bahia, Av Araújo Pinho, 32 - Canela, 40110-150 Salvador, Bahia, Brazil; Center for Biological and Health Sciences, Federal University of Western Bahia, Estrada da Prainha s/n, 47805-000 Barreiras, Bahia, Brazil.
| | - Ana Elisa Toscano
- Department of Nursing, CAV, Federal University of Pernambuco, 55608-680 Vitória de Santo Antão, PE, Brazil.
| | - Diego Cabral Lacerda
- Graduate Program in Nutrition, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, 50670-901 Recife, PE, Brazil.
| | - Marcela de Sá Barreto da Cunha
- Center for Biological and Health Sciences, Federal University of Western Bahia, Estrada da Prainha s/n, 47805-000 Barreiras, Bahia, Brazil.
| | - Raul Manhães de Castro
- Graduate Program in Nutrition, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, 50670-901 Recife, PE, Brazil.
| | | | - Jairza Maria Barreto Medeiros
- Graduate Program in Nutrition, Federal University of Bahia, Av Araújo Pinho, 32 - Canela, 40110-150 Salvador, Bahia, Brazil.
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Gostyukhina AA, Zamoshchina TA, Zaitsev KV, Gutor SS, Zhukova OB, Svetlik MV, Abdulkina NG, Zaitsev AA. Adaptive reactions of rats after light desynchronosis and physical overwork. BULLETIN OF SIBERIAN MEDICINE 2018. [DOI: 10.20538/1682-0363-2018-3-22-34] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
It is known that desynchronosis and physical stress to the point of fatigue are powerful stressors for the body. Studies indicate a depleting effect of the combined stress factors on the adaptive reserves of the organism, especially when the joint exposure is prolonged. However, the adaptive value of the training process in various activities is also well known. In this regard, it seems important to study these two aspects of adaptation when combined effects of light desynchronosis and physical overwork on the body.Рurposeof this study was to study the features of adaptive reactions of rats under conditions of light desynchronosis and physical overwork.Materials and methods. An experimental study was performed on 60 mature male rats of the Wistar breed. For the induction of experimental desynchronosis, the animals of the experimental groups were kept for 10 days in artificial bright illumination (150 LX) or full darkening (2-3 LX). The model of physical overfatigue used the method of forced swimming of rats to complete fatigue in their own modification. At the end of the swim test, all the animals were withdrawn from the experiment and underwent one-step-long decapitation under CO2 with anesthesia. In decapitated animals, to collect serum, the blood was collected in a clean, dry vial. In the blood serum of rats, the biochemical standard method was used to determine the level of lactate. Using the ELISA method and the reagent kit “IBL” (Germany), the concentrations of corticosterone and serotonin were determined. The histological analysis of the stress-realizing organs was carried out according to a standard procedure using light microscopy using the Axioskop 40 microscope from CarlZeiss (Germany).Results.It was found that physical fatigue in rats after daily swimming activities (5 days) was accompanied by a decrease in the level of corticosterone in the blood serum and destructive changes in the adrenal and femoral muscles in comparison with intact animals. In comparison with the intact group, dark deprivation and physical activity did not alter the content of corticosterone, serotonin, and lactate in the blood and caused minor destructive processes in the adrenal glands. Light deprivation and fatigue lowered the level of corticosterone in the blood, caused destructive changes in the adrenal glands and muscles, and increased serotonin levels in serum, but did not change the level of lactate.Conclusions.The features of adaptive reactions of rats under conditions of light desynchronosis and physical overfatigue are determined by the nature of deprivation or the direction of the phase shift (deprivation of light or darkness). Dark deprivation followed by physical overfatigue causes the development of the resistance phase of the general adaptation syndrome, and light deprivation followed by physical overwork is the phase of exhaustion.
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Affiliation(s)
- A. A. Gostyukhina
- Siberian Federal Scientific Clinical Center (SFSCC) of the Federal Medical and Biological Agency (FMBA)
| | - T. A. Zamoshchina
- Siberian Federal Scientific Clinical Center (SFSCC) of the Federal Medical and Biological Agency (FMBA); Siberian State Medical University (SSMU); National Research Tomsk State University (NR TSU)
| | - K. V. Zaitsev
- Siberian Federal Scientific Clinical Center (SFSCC) of the Federal Medical and Biological Agency (FMBA)
| | - S. S. Gutor
- Siberian Federal Scientific Clinical Center (SFSCC) of the Federal Medical and Biological Agency (FMBA); Siberian State Medical University (SSMU)
| | - O. B. Zhukova
- Siberian Federal Scientific Clinical Center (SFSCC) of the Federal Medical and Biological Agency (FMBA)
| | - M. V. Svetlik
- Siberian State Medical University (SSMU); National Research Tomsk State University (NR TSU)
| | - N. G. Abdulkina
- Siberian Federal Scientific Clinical Center (SFSCC) of the Federal Medical and Biological Agency (FMBA)
| | - A. A. Zaitsev
- Siberian Federal Scientific Clinical Center (SFSCC) of the Federal Medical and Biological Agency (FMBA)
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25
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Fernández-Reina A, Urdiales JL, Sánchez-Jiménez F. What We Know and What We Need to Know about Aromatic and Cationic Biogenic Amines in the Gastrointestinal Tract. Foods 2018; 7:E145. [PMID: 30181486 PMCID: PMC6164962 DOI: 10.3390/foods7090145] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 08/22/2018] [Accepted: 08/29/2018] [Indexed: 12/15/2022] Open
Abstract
Biogenic amines derived from basic and aromatic amino acids (B/A-BAs), polyamines, histamine, serotonin, and catecholamines are a group of molecules playing essential roles in many relevant physiological processes, including cell proliferation, immune response, nutrition and reproduction. All these physiological effects involve a variety of tissue-specific cellular receptors and signalling pathways, which conforms to a very complex network that is not yet well-characterized. Strong evidence has proved the importance of this group of molecules in the gastrointestinal context, also playing roles in several pathologies. This work is based on the hypothesis that integration of biomedical information helps to reach new translational actions. Thus, the major aim of this work is to combine scientific knowledge on biomolecules, metabolism and physiology of the main B/A-BAs involved in the pathophysiology of the gastrointestinal tract, in order to point out important gaps in information and other facts deserving further research efforts in order to connect molecular information with pathophysiological observations.
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Affiliation(s)
- Alberto Fernández-Reina
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain.
| | - José Luis Urdiales
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain.
- CIBER de Enfermedades Raras & IBIMA, Instituto de Salud Carlos III, 29010 Málaga, Spain.
| | - Francisca Sánchez-Jiménez
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain.
- CIBER de Enfermedades Raras & IBIMA, Instituto de Salud Carlos III, 29010 Málaga, Spain.
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Oliveira T, Marinho V, Carvalho V, Magalhães F, Rocha K, Ayres C, Teixeira S, Nunes M, Bastos VH, Pinto GR. Genetic polymorphisms associated with circadian rhythm dysregulation provide new perspectives on bipolar disorder. Bipolar Disord 2018; 20:515-522. [PMID: 29441659 DOI: 10.1111/bdi.12624] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 10/24/2017] [Accepted: 01/07/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVES The objective of this study was to present a broad view of how genetic polymorphisms in genes that control the rhythmicity and function of circadian rhythm may influence the etiology, pathophysiology and treatment of bipolar disorder (BD). METHODS A bibliographic search was performed to identify and select papers reporting studies on variations in circadian genes and BD. A search of Medline, Google Scholar, Scopus, and Web of Science was carried out to review the literature. RESULTS Several studies provide evidence of contributions of variations in circadian genes to disease etiology, pathophysiological variations and lithium drug response. Dysfunction of the sleep-wake cycle, an important brain function regulator, is indicated as the primary means by which circadian gene variations act in mood disorders. CONCLUSIONS Investigations of the effects of circadian genes have suggested that the chronotype offers hope for guiding and improving management of patients with BD. However, BD is a disease of a complex nature and presents multiple endophenotypes determined by different associations between genetics and the environment. Thus, new genomic studies to delimit variations that may help improve the clinical condition of these patients are extremely important.
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Affiliation(s)
- Thomaz Oliveira
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí, Parnaíba, Brazil
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Victor Marinho
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí, Parnaíba, Brazil
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Valécia Carvalho
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Francisco Magalhães
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Kaline Rocha
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Carla Ayres
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Silmar Teixeira
- Brain Mapping and Plasticity Laboratory, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Monara Nunes
- Brain Mapping and Functionality Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Victor Hugo Bastos
- Brain Mapping and Functionality Laboratory, Federal University of Piauí, Parnaíba, Brazil
| | - Giovanny R Pinto
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba, Brazil
- The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
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Iwasaki K, Komiya H, Kakizaki M, Miyoshi C, Abe M, Sakimura K, Funato H, Yanagisawa M. Ablation of Central Serotonergic Neurons Decreased REM Sleep and Attenuated Arousal Response. Front Neurosci 2018; 12:535. [PMID: 30131671 PMCID: PMC6090062 DOI: 10.3389/fnins.2018.00535] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/16/2018] [Indexed: 12/22/2022] Open
Abstract
Sleep/wake behavior is regulated by distinct groups of neurons, such as dopaminergic, noradrenergic, and orexinergic neurons. Although monoaminergic neurons are usually considered to be wake-promoting, the role of serotonergic neurons in sleep/wake behavior remains inconclusive because of the effect of serotonin (5-HT)-deficiency on brain development and the compensation for inborn 5-HT deficiency by other sleep/wake-regulating neurons. Here, we performed selective ablation of central 5-HT neurons in the newly developed Rosa-diphtheria toxin receptor (DTR)-tdTomato mouse line that was crossed with Pet1Cre/+ mice to examine the role of 5-HT neurons in the sleep/wake behavior of adult mice. Intracerebroventricular administration of diphtheria toxin completely ablated tdTomato-positive cells in Pet1Cre/+; Rosa-DTR-tdTomato mice. Electroencephalogram/electromyogram-based sleep/wake analysis demonstrated that central 5-HT neuron ablation in adult mice decreased the time spent in rapid eye movement (REM) sleep, which was associated with fewer transitions from non-REM (NREM) sleep to REM sleep than in control mice. Central 5-HT neuron-ablated mice showed attenuated wake response to a novel environment and increased theta power during wakefulness compared to control mice. The current findings indicated that adult 5-HT neurons work to support wakefulness and regulate REM sleep time through a biased transition from NREM sleep to REM sleep.
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Affiliation(s)
- Kanako Iwasaki
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Haruna Komiya
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Miyo Kakizaki
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Chika Miyoshi
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Manabu Abe
- Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Kenji Sakimura
- Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Hiromasa Funato
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan.,Department of Anatomy, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Masashi Yanagisawa
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan.,Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX, United States.,Life Science Center, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Japan
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Siafis S, Tzachanis D, Samara M, Papazisis G. Antipsychotic Drugs: From Receptor-binding Profiles to Metabolic Side Effects. Curr Neuropharmacol 2018; 16:1210-1223. [PMID: 28676017 PMCID: PMC6187748 DOI: 10.2174/1570159x15666170630163616] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 04/25/2017] [Accepted: 06/21/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Antipsychotic-induced metabolic side effects are major concerns in psychopharmacology and clinical psychiatry. Their pathogenetic mechanisms are still not elucidated. METHODS Herein, we review the impact of neurotransmitters on metabolic regulation, providing insights into antipsychotic-induced metabolic side effects. RESULTS Antipsychotic drugs seem to interfere with feeding behaviors and energy balance, processes that control metabolic regulation. Reward and energy balance centers in central nervous system constitute the central level of metabolic regulation. The peripheral level consists of skeletal muscles, the liver, the pancreas, the adipose tissue and neuroendocrine connections. Neurotransmitter receptors have crucial roles in metabolic regulation and they are also targets of antipsychotic drugs. Interaction of antipsychotics with neurotransmitters could have both protective and harmful effects on metabolism. CONCLUSION Emerging evidence suggests that antipsychotics have different liabilities to induce obesity, diabetes and dyslipidemia. However this diversity cannot be explained merely by drugs'pharmacodynamic profiles, highlighting the need for further research.
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Affiliation(s)
| | | | | | - Georgios Papazisis
- Address correspondence to this author at the Department of Clinical
Pharmacology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece; Tel/Fax: +30 2310 999323; E-mail:
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29
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Weger M, Diotel N, Dorsemans AC, Dickmeis T, Weger BD. Stem cells and the circadian clock. Dev Biol 2017; 431:111-123. [DOI: 10.1016/j.ydbio.2017.09.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/11/2017] [Accepted: 09/08/2017] [Indexed: 12/20/2022]
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30
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Barker MK, Sable CM, Montgomery SE, Chow L, Green TJ, Panagiotopoulos C, Devlin AM. Diet and cardiometabolic side effects in children treated with second-generation antipsychotics. Clin Nutr ESPEN 2017; 23:205-211. [PMID: 29460800 DOI: 10.1016/j.clnesp.2017.09.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 09/22/2017] [Accepted: 09/27/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND Second-generation antipsychotic (SGA) treatment in children is associated with metabolic side effects including weight gain, dyslipidemia, and insulin resistance. The objective of this study is to determine if SGA treatment in children affects dietary intakes and relationship to metabolic side effects. METHODS Three-day food records assessed dietary energy and macronutrient intakes in a cross-sectional population of SGA-treated (n = 35) and SGA-naïve (n = 29) children. RESULTS SGA-treated children had more overweight/obesity (BMI ≥ 85th percentile for age and sex, p = 0.001); waist circumference (WC) ≥ 90th percentile for age and sex (p = 0.007); waist:height ratio (WHtR) ≥ 85th percentile for age and sex (p = 0.004), greater HOMA-IR, (p = 0.001) and plasma triglycerides (p = 0.017), and lower plasma HDL (p = 0.029). Dietary energy intakes were not different between SGA-naïve and SGA-treated children [1734 ± 486 vs 1971 ± 649 (-135, 408) kcal/day, mean ± SD (95% CI)] after adjustments for sex, age, Tanner stage, psychostimulant use, and height. Similarly, no differences in macronutrient intakes were observed. In models adjusted for SGA treatment and physical activity, no relationships between dietary intakes and BMI were found, but dietary total energy intakes were positively associated with waist circumference z-scores (p = 0.019), systolic blood pressure z-scores (p = 0.028, also adjusted for BMI) and HOMA-IR (p = 0.013, also adjusted for age, sex, BMI). All of the children had poor diets with 87.5% having >7% of daily energy from saturated fat; 62.5% having >20% of daily energy from sugar; and almost 60% having sodium intakes above the tolerable upper intake level. CONCLUSIONS SGA treatment is not associated with greater dietary energy intakes in children. However, dietary energy intakes are associated with greater waist circumference and systolic blood pressure z-scores and HOMA-IR in children with mental health conditions.
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Affiliation(s)
- Mikaela K Barker
- Department of Food, Nutrition, and Health, University of British Columbia, Vancouver, Canada
| | - Carly M Sable
- Department of Food, Nutrition, and Health, University of British Columbia, Vancouver, Canada
| | - Sarah E Montgomery
- Department of Medicine, University of British Columbia, Vancouver, Canada
| | - Lorrie Chow
- British Columbia Mental Health and Substance Use Services, Vancouver, Canada
| | - Timothy J Green
- Healthy Mothers, Babies and Children Theme, South Australia Health and Medical Research Institute, and Discipline of Pediatrics and Reproductive Health, University of Adelaide, Adelaide, South Australia, Australia
| | - Constadina Panagiotopoulos
- Department of Pediatrics, University of British Columbia, British Columbia Children's Hospital Research Institute, Vancouver, Canada
| | - Angela M Devlin
- Department of Pediatrics, University of British Columbia, British Columbia Children's Hospital Research Institute, Vancouver, Canada.
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Nas A, Mirza N, Hägele F, Kahlhöfer J, Keller J, Rising R, Kufer TA, Bosy-Westphal A. Impact of breakfast skipping compared with dinner skipping on regulation of energy balance and metabolic risk. Am J Clin Nutr 2017; 105:1351-1361. [PMID: 28490511 DOI: 10.3945/ajcn.116.151332] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 04/04/2017] [Indexed: 11/14/2022] Open
Abstract
Background: Meal skipping has become an increasing trend of the modern lifestyle that may lead to obesity and type 2 diabetes.Objective: We investigated whether the timing of meal skipping impacts these risks by affecting circadian regulation of energy balance, glucose metabolism, and postprandial inflammatory responses.Design: In a randomized controlled crossover trial, 17 participants [body mass index (in kg/m2): 23.7 ± 4.6] underwent 3 isocaloric 24-h interventions (55%, 30%, and 15% carbohydrate, fat, and protein, respectively): a breakfast skipping day (BSD) and a dinner skipping day (DSD) separated by a conventional 3-meal-structure day (control). Energy and macronutrient balance was measured in a respiration chamber. Postprandial glucose, insulin, and inflammatory responses in leukocytes as well as 24-h glycemia and insulin secretion were analyzed.Results: When compared with the 3-meal control, 24-h energy expenditure was higher on both skipping days (BSD: +41 kcal/d; DSD: +91 kcal/d; both P < 0.01), whereas fat oxidation increased on the BSD only (+16 g/d; P < 0.001). Spontaneous physical activity, 24-h glycemia, and 24-h insulin secretion did not differ between intervention days. The postprandial homeostasis model assessment index (+54%) and glucose concentrations after lunch (+46%) were, however, higher on the BSD than on the DSD (both P < 0.05). Concomitantly, a longer fasting period with breakfast skipping also increased the inflammatory potential of peripheral blood cells after lunch.Conclusions: Compared with 3 meals/d, meal skipping increased energy expenditure. In contrast, higher postprandial insulin concentrations and increased fat oxidation with breakfast skipping suggest the development of metabolic inflexibility in response to prolonged fasting that may in the long term lead to low-grade inflammation and impaired glucose homeostasis. This trial was registered at clinicaltrials.gov as NCT02635139.
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Affiliation(s)
- Alessa Nas
- Departments of Applied Nutrition and Dietetics and
| | - Nora Mirza
- Immunology, Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany; and
| | | | | | | | | | - Thomas A Kufer
- Immunology, Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany; and
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The ETS-5 transcription factor regulates activity states in Caenorhabditis elegans by controlling satiety. Proc Natl Acad Sci U S A 2017; 114:E1651-E1658. [PMID: 28193866 DOI: 10.1073/pnas.1610673114] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Animal behavior is shaped through interplay among genes, the environment, and previous experience. As in mammals, satiety signals induce quiescence in Caenorhabditis elegans Here we report that the C. elegans transcription factor ETS-5, an ortholog of mammalian FEV/Pet1, controls satiety-induced quiescence. Nutritional status has a major influence on C. elegans behavior. When foraging, food availability controls behavioral state switching between active (roaming) and sedentary (dwelling) states; however, when provided with high-quality food, C. elegans become sated and enter quiescence. We show that ETS-5 acts to promote roaming and inhibit quiescence by setting the internal "satiety quotient" through fat regulation. Acting from the ASG and BAG sensory neurons, we show that ETS-5 functions in a complex network with serotonergic and neuropeptide signaling pathways to control food-regulated behavioral state switching. Taken together, our results identify a neuronal mechanism for controlling intestinal fat stores and organismal behavioral states in C. elegans, and establish a paradigm for the elucidation of obesity-relevant mechanisms.
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Blancas-Velazquez A, Mendoza J, Garcia AN, la Fleur SE. Diet-Induced Obesity and Circadian Disruption of Feeding Behavior. Front Neurosci 2017; 11:23. [PMID: 28223912 PMCID: PMC5293780 DOI: 10.3389/fnins.2017.00023] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/12/2017] [Indexed: 12/13/2022] Open
Abstract
Feeding behavior shows a rhythmic daily pattern, which in nocturnal rodents is observed mainly during the dark period. This rhythmicity is under the influence of the hypothalamic suprachiasmatic nucleus (SCN), the main biological clock. Nevertheless, various studies have shown that in rodent models of obesity, using high-energy diets, the general locomotor activity and feeding rhythms can be disrupted. Here, we review the data on the effects of diet-induced obesity (DIO) on locomotor activity and feeding patterns, as well as the effect on the brain sites within the neural circuitry involved in metabolic and rewarding feeding behavior. In general, DIO may alter locomotor activity by decreasing total activity. On the other hand, DIO largely alters eating patterns, producing increased overall ingestion and number of eating bouts that can extend to the resting period. Furthermore, within the hypothalamic areas, little effect has been reported on the molecular circadian mechanism in DIO animals with ad libitum hypercaloric diets and little or no data exist so far on its effects on the reward system areas. We further discuss the possibility of an uncoupling of metabolic and reward systems in DIO and highlight a gap of circadian and metabolic research that may help to better understand the implications of obesity.
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Affiliation(s)
- Aurea Blancas-Velazquez
- Institute of Cellular and Integrative Neurosciences, Centre National de la Recherche Scientifique UPR-3212, University of StrasbourgStrasbourg, France; Department of Endocrinology and Metabolism, Academic Medical Center, University of AmsterdamAmsterdam, Netherlands; Metabolism and Reward Group, Netherlands Institute for NeuroscienceAmsterdam, Netherlands
| | - Jorge Mendoza
- Institute of Cellular and Integrative Neurosciences, Centre National de la Recherche Scientifique UPR-3212, University of Strasbourg Strasbourg, France
| | - Alexandra N Garcia
- Department of Endocrinology and Metabolism, Academic Medical Center, University of AmsterdamAmsterdam, Netherlands; Metabolism and Reward Group, Netherlands Institute for NeuroscienceAmsterdam, Netherlands
| | - Susanne E la Fleur
- Department of Endocrinology and Metabolism, Academic Medical Center, University of AmsterdamAmsterdam, Netherlands; Metabolism and Reward Group, Netherlands Institute for NeuroscienceAmsterdam, Netherlands
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EphrinA5 Signaling Is Required for the Distinctive Targeting of Raphe Serotonin Neurons in the Forebrain. eNeuro 2017; 4:eN-NWR-0327-16. [PMID: 28197551 PMCID: PMC5292598 DOI: 10.1523/eneuro.0327-16.2017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 01/06/2017] [Indexed: 12/13/2022] Open
Abstract
Serotonin (5-HT) neurotransmission in the brain relies on a widespread axon terminal network originating from the hindbrain raphe nuclei. These projections are topographically organized such that the dorsal (DR), and median raphe (MnR) nuclei have different brain targets. However, the guidance molecules involved in this selective targeting in development are unknown. Here, we show the implication of ephrinA5 signaling in this process. We find that the EphA5 gene is selectively expressed in a subset of 5-HT neurons during embryonic and postnatal development. Highest coexpression of EphA5 and the 5-HT marker Tph2 is found in the DR, with lower coexpression in the MnR, and hardly any colocalization of the caudal raphe in the medulla. Accordingly, ephrinA induced a dose-dependent collapse response of 5-HT growth cones cultured from rostral but not caudal raphe. Ectopic expression of ephrinA3, after in utero electroporation in the amygdala and piriform cortex, repelled 5-HT raphe fiber ingrowth. Conversely, misplaced DR 5-HT axons were found in ephrin A5 knockout mice in brain regions that are normally only targeted by MnR 5-HT axons. This causes an overall increase in the density of 5-HT innervation in the ventromedial hypothalamus, the suprachiasmatic nucleus, and the olfactory bulb. All these brain areas have high expression of ephrinAs at the time of 5-HT fiber ingrowth. Present results show for the first time the role of a guidance molecule for the region-specific targeting of raphe neurons. This has important implications to understand how functional parsing of central 5-HT neurons is established during development.
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Suárez-Trujillo A, Casey TM. Serotoninergic and Circadian Systems: Driving Mammary Gland Development and Function. Front Physiol 2016; 7:301. [PMID: 27471474 PMCID: PMC4945644 DOI: 10.3389/fphys.2016.00301] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 06/29/2016] [Indexed: 12/23/2022] Open
Abstract
Since lactation is one of the most metabolically demanding states in adult female mammals, beautifully complex regulatory mechanisms are in place to time lactation to begin after birth and cease when the neonate is weaned. Lactation is regulated by numerous different homeorhetic factors, all of them tightly coordinated with the demands of milk production. Emerging evidence support that among these factors are the serotonergic and circadian clock systems. Here we review the serotoninergic and circadian clock systems and their roles in the regulation of mammary gland development and lactation physiology. We conclude by presenting our hypothesis that these two systems interact to accommodate the metabolic demands of lactation and thus adaptive changes in these systems occur to maintain mammary and systemic homeostasis through the reproductive cycles of female mammals.
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Affiliation(s)
- Aridany Suárez-Trujillo
- Animal Production and Biotechnology Group, Institute of Animal Health and Food Safety, Universidad de Las Palmas de Gran CanariaArucas, Spain
| | - Theresa M. Casey
- Department of Animal Sciences, Purdue UniversityWest Lafayette, IN, USA
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Jha PK, Foppen E, Kalsbeek A, Challet E. Sleep restriction acutely impairs glucose tolerance in rats. Physiol Rep 2016; 4:e12839. [PMID: 27354542 PMCID: PMC4923238 DOI: 10.14814/phy2.12839] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 05/23/2016] [Accepted: 05/31/2016] [Indexed: 11/24/2022] Open
Abstract
Chronic sleep curtailment in humans has been related to impairment of glucose metabolism. To better understand the underlying mechanisms, the purpose of the present study was to investigate the effect of acute sleep deprivation on glucose tolerance in rats. A group of rats was challenged by 4-h sleep deprivation in the early rest period, leading to prolonged (16 h) wakefulness. Another group of rats was allowed to sleep during the first 4 h of the light period and sleep deprived in the next 4 h. During treatment, food was withdrawn to avoid a postmeal rise in plasma glucose. An intravenous glucose tolerance test (IVGTT) was performed immediately after the sleep deprivation period. Sleep deprivation at both times of the day similarly impaired glucose tolerance and reduced the early-phase insulin responses to a glucose challenge. Basal concentrations of plasma glucose, insulin, and corticosterone remained unchanged after sleep deprivation. Throughout IVGTTs, plasma corticosterone concentrations were not different between the control and sleep-deprived group. Together, these results demonstrate that independent of time of day and sleep pressure, short sleep deprivation during the resting phase favors glucose intolerance in rats by attenuating the first-phase insulin response to a glucose load. In conclusion, this study highlights the acute adverse effects of only a short sleep restriction on glucose homeostasis.
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Affiliation(s)
- Pawan K Jha
- Department of Endocrinology and Metabolism, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, the Netherlands Hypothalamic Integration Mechanisms, Netherlands Institute for Neuroscience, Amsterdam, the Netherlands Regulation of Circadian Clocks team, Institute of Cellular and Integrative Neurosciences UPR3212 Centre National de la Recherche Scientifique (CNRS) University of Strasbourg, Strasbourg, France International Associated Laboratory LIA1061 Understanding the Neural Basis of Diurnality, CNRS, France and the Netherlands
| | - Ewout Foppen
- Department of Endocrinology and Metabolism, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, the Netherlands
| | - Andries Kalsbeek
- Department of Endocrinology and Metabolism, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, the Netherlands Hypothalamic Integration Mechanisms, Netherlands Institute for Neuroscience, Amsterdam, the Netherlands International Associated Laboratory LIA1061 Understanding the Neural Basis of Diurnality, CNRS, France and the Netherlands
| | - Etienne Challet
- Regulation of Circadian Clocks team, Institute of Cellular and Integrative Neurosciences UPR3212 Centre National de la Recherche Scientifique (CNRS) University of Strasbourg, Strasbourg, France International Associated Laboratory LIA1061 Understanding the Neural Basis of Diurnality, CNRS, France and the Netherlands
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Nutrigenetics and Nutrimiromics of the Circadian System: The Time for Human Health. Int J Mol Sci 2016; 17:299. [PMID: 26927084 PMCID: PMC4813163 DOI: 10.3390/ijms17030299] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 02/08/2016] [Accepted: 02/16/2016] [Indexed: 12/15/2022] Open
Abstract
Even though the rhythmic oscillations of life have long been known, the precise molecular mechanisms of the biological clock are only recently being explored. Circadian rhythms are found in virtually all organisms and affect our lives. Thus, it is not surprising that the correct running of this clock is essential for cellular functions and health. The circadian system is composed of an intricate network of genes interwined in an intrincated transcriptional/translational feedback loop. The precise oscillation of this clock is controlled by the circadian genes that, in turn, regulate the circadian oscillations of many cellular pathways. Consequently, variations in these genes have been associated with human diseases and metabolic disorders. From a nutrigenetics point of view, some of these variations modify the individual response to the diet and interact with nutrients to modulate such response. This circadian feedback loop is also epigenetically modulated. Among the epigenetic mechanisms that control circadian rhythms, microRNAs are the least studied ones. In this paper, we review the variants of circadian-related genes associated to human disease and nutritional response and discuss the current knowledge about circadian microRNAs. Accumulated evidence on the genetics and epigenetics of the circadian system points to important implications of chronotherapy in the clinical practice, not only in terms of pharmacotherapy, but also for dietary interventions. However, interventional studies (especially nutritional trials) that include chronotherapy are scarce. Given the importance of chronobiology in human health such studies are warranted in the near future.
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