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Hearn JI, Alhilali M, Kim M, Kalev-Zylinska ML, Poulsen RC. N-methyl-D-aspartate receptor regulates the circadian clock in megakaryocytic cells and impacts cell proliferation through BMAL1. Platelets 2023; 34:2206918. [PMID: 37183795 DOI: 10.1080/09537104.2023.2206918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 02/16/2023] [Accepted: 04/17/2023] [Indexed: 05/16/2023]
Abstract
Peripheral circadian clocks control cell proliferation and survival, but little is known about their role and regulation in megakaryocytic cells. N-methyl-D-aspartate receptor (NMDAR) regulates the central clock in the brain. The purpose of this study was to determine whether NMDAR regulates the megakaryocytic cell clock and whether the megakaryocytic clock regulates cell proliferation and cell death. We found that both the Meg-01 megakaryocytic cell line and native murine megakaryocytes expressed circadian clock genes. Megakaryocyte-directed deletion of Grin1 in mice caused significant disruption of the circadian rhythm pathway at the transcriptional level and increased expression of BMAL1 at the protein level. Similarly, both pharmacological (MK-801) and genetic (GRIN-/-) inhibition of NMDAR in Meg-01 cells in vitro resulted in widespread changes in clock gene expression including increased expression of BMAL1, the core clock transcription factor. BMAL1 overexpression reduced Meg-01 cell proliferation and altered the time-dependent expression of the cell cycle regulators MYC and WEE1, whereas BMAL1 knockdown led to increased cell death in Meg-01-GRIN1-/- cells. Our results demonstrate that NMDAR regulates the circadian clock in megakaryocytic cells and that the circadian clock component BMAL1 contributes to the control of Meg-01 cell proliferation and survival.
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Affiliation(s)
- James I Hearn
- Blood and Cancer Biology Laboratory, Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland, New Zealand
| | - Mariam Alhilali
- Department of Medicine, School of Medicine, University of Auckland, Auckland, New Zealand
| | - Minah Kim
- Department of Medicine, School of Medicine, University of Auckland, Auckland, New Zealand
| | - Maggie L Kalev-Zylinska
- Blood and Cancer Biology Laboratory, Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland, New Zealand
- Department of Pathology and Laboratory Medicine, Haematology Laboratory, Auckland City Hospital, Auckland, New Zealand
| | - Raewyn C Poulsen
- Department of Medicine, School of Medicine, University of Auckland, Auckland, New Zealand
- Department of Pharmacology, School of Medical Sciences, University of Auckland, Auckland, New Zealand
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2
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Daniels LJ, Kay D, Marjot T, Hodson L, Ray DW. Circadian regulation of liver metabolism: experimental approaches in human, rodent, and cellular models. Am J Physiol Cell Physiol 2023; 325:C1158-C1177. [PMID: 37642240 PMCID: PMC10861179 DOI: 10.1152/ajpcell.00551.2022] [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: 12/19/2022] [Revised: 06/15/2023] [Accepted: 07/19/2023] [Indexed: 08/31/2023]
Abstract
Circadian rhythms are endogenous oscillations with approximately a 24-h period that allow organisms to anticipate the change between day and night. Disruptions that desynchronize or misalign circadian rhythms are associated with an increased risk of cardiometabolic disease. This review focuses on the liver circadian clock as relevant to the risk of developing metabolic diseases including nonalcoholic fatty liver disease (NAFLD), insulin resistance, and type 2 diabetes (T2D). Many liver functions exhibit rhythmicity. Approximately 40% of the hepatic transcriptome exhibits 24-h rhythms, along with rhythms in protein levels, posttranslational modification, and various metabolites. The liver circadian clock is critical for maintaining glucose and lipid homeostasis. Most of the attention in the metabolic field has been directed toward diet, exercise, and rather little to modifiable risks due to circadian misalignment or disruption. Therefore, the aim of this review is to systematically analyze the various approaches that study liver circadian pathways, targeting metabolic liver diseases, such as diabetes, nonalcoholic fatty liver disease, using human, rodent, and cell biology models.NEW & NOTEWORTHY Over the past decade, there has been an increased interest in understanding the intricate relationship between circadian rhythm and liver metabolism. In this review, we have systematically searched the literature to analyze the various experimental approaches utilizing human, rodent, and in vitro cellular approaches to dissect the link between liver circadian rhythms and metabolic disease.
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Affiliation(s)
- Lorna J Daniels
- Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Danielle Kay
- Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Thomas Marjot
- Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Leanne Hodson
- Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
- NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, United Kingdom
| | - David W Ray
- Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
- NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, United Kingdom
- Kavli Centre for Nanoscience Discovery, University of Oxford, Oxford, United Kingdom
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Oyama Y, Walker LA, Eckle T. Targeting circadian PER2 as therapy in myocardial ischemia and reperfusion injury. Chronobiol Int 2021; 38:1262-1273. [PMID: 34034593 PMCID: PMC8355134 DOI: 10.1080/07420528.2021.1928160] [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: 03/19/2021] [Revised: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 01/22/2023]
Abstract
The cycle of day and night dominates life on earth. Therefore, almost all living organisms adopted a molecular clock linked to the light-dark cycles. It is now well established that this molecular clock is crucial for human health and wellbeing. Disruption of the molecular clockwork directly results in a myriad of disorders, including cardiovascular diseases. Further, the onset of many cardiovascular diseases such as acute myocardial infarction exhibits a circadian periodicity with worse outcomes in the early morning hours. Based on these observations, the research community became interested in manipulating the molecular clock to treat cardiovascular diseases. In recent years, several exciting discoveries of pharmacological agents or molecular mechanisms targeting the molecular clockwork have paved the way for circadian medicine's arrival in cardiovascular diseases. The current review will outline the most recent circadian therapeutic advances related to the circadian rhythm protein Period2 (PER2) to treat myocardial ischemia and summarize future research in the respective field.
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Affiliation(s)
- Yoshimasa Oyama
- Department of Anesthesiology, University of Colorado Denver School of Medicine, Aurora, Colorado, USA
- Department of Anesthesiology and Intensive Care Medicine, Oita University Faculty of Medicine, Oita, Japan
| | - Lori A Walker
- Division of Cardiology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Tobias Eckle
- Department of Anesthesiology, University of Colorado Denver School of Medicine, Aurora, Colorado, USA
- Department of Cell and Developmental Biology, University of Colorado Denver School of Medicine, Aurora, Colorado, USA
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The circadian clock regulates rhythmic erythropoietin expression in the murine kidney. Kidney Int 2021; 100:1071-1080. [PMID: 34332958 DOI: 10.1016/j.kint.2021.07.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 06/28/2021] [Accepted: 07/02/2021] [Indexed: 11/23/2022]
Abstract
Generation of circadian rhythms is cell-autonomous and relies on a transcription/translation feedback loop controlled by a family of circadian clock transcription factor activators including CLOCK, BMAL1 and repressors such as CRY1 and CRY2. The aim of the present study was to examine both the molecular mechanism and the hemopoietic implication of circadian erythropoietin expression. Mutant mice with homozygous deletion of the core circadian clock genes cryptochromes 1 and 2 (Cry-null) were used to elucidate circadian erythropoietin regulation. Wild-type control mice exhibited a significant difference in kidney erythropoietin mRNA expression between circadian times 06 and 18. In parallel, a significantly higher number of erythropoietin-producing cells in the kidney (by RNAscope®) and significantly higher levels of circulating erythropoietin protein (by ELISA) were detected at circadian time 18. Such changes were abolished in Cry-null mice and were independent from oxygen tension, oxygen saturation, or expression of hypoxia-inducible factor 2 alpha, indicating that circadian erythropoietin expression is transcriptionally regulated by CRY1 and CRY2. Reporter gene assays showed that the CLOCK/BMAL1 heterodimer activated an E-box element in the 5' erythropoietin promoter. RNAscope® in situ hybridization confirmed the presence of Bmal1 in erythropoietin-producing cells of the kidney. In Cry-null mice, a significantly reduced number of reticulocytes was found while erythrocyte numbers and hematocrit were unchanged. Thus, circadian erythropoietin regulation in the normoxic adult murine kidney is transcriptionally controlled by master circadian activators CLOCK/BMAL1, and repressors CRY1/CRY2. These findings may have implications for kidney physiology and disease, laboratory diagnostics, and anemia therapy.
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Rodent models for intravascular ischemic cerebral infarction: a review of influencing factors and method optimization. Neuroreport 2020; 31:1154-1160. [PMID: 32991526 DOI: 10.1097/wnr.0000000000001529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Rodent models for cerebral infarction are useful for studying human focal ischemic cerebral infarction, by simulating etiological and pathophysiological mechanisms. However, differences in the selection of anesthetic drugs, surgical methods and other factors may affect the extent to which preclinical models reflect the human condition. This review summarizes these factors. We searched pertinent literature from the MEDLINE and Web of Science databases, and reviewed differences in rodent strain, anesthesia method, sex, surgical method, timing of surgery, and factors influencing postoperative evaluation. In particular, circadian rhythm was found to have a significant impact on the outcome of cerebral infarction in rodent models. This information will enable researchers to quickly and clearly select appropriate modeling methods, acquire reliable quantitative experimental results, and obtain basic data for fundamental mechanism research.
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Schrottmaier WC, Mussbacher M, Salzmann M, Assinger A. Platelet-leukocyte interplay during vascular disease. Atherosclerosis 2020; 307:109-120. [DOI: 10.1016/j.atherosclerosis.2020.04.018] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/08/2020] [Accepted: 04/29/2020] [Indexed: 02/06/2023]
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Oyama Y, Shuff S, Davizon-Castillo P, Clendenen N, Eckle T. Intense light as anticoagulant therapy in humans. PLoS One 2020; 15:e0244792. [PMID: 33382840 PMCID: PMC7775081 DOI: 10.1371/journal.pone.0244792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 12/07/2020] [Indexed: 11/25/2022] Open
Abstract
Blood coagulation is central to myocardial ischemia and reperfusion (IR) injury. Studies on the light elicited circadian rhythm protein Period 2 (PER2) using whole body Per2-/- mice found deficient platelet function and reduced clotting which would be expected to protect from myocardial IR-injury. In contrast, intense light induction of PER2 protected from myocardial IR-injury while Per2 deficiency was detrimental. Based on these conflicting data, we sought to evaluate the role of platelet specific PER2 in coagulation and myocardial ischemia and reperfusion injury. We demonstrated that platelets from mice with tissue-specific deletion of Per2 in the megakaryocyte lineage (Per2loxP/loxP-PF4-CRE) significantly clot faster than platelets from control mice. We further found increases in infarct sizes or plasma troponin levels in Per2loxP/loxP-PF4-CRE mice when compared to controls. As intense light increases PER2 protein in human tissues, we also performed translational studies and tested the effects of intense light therapy on coagulation in healthy human subjects. Our human studies revealed that intense light therapy repressed procoagulant pathways in human plasma samples and significantly reduced the clot rate. Based on these results we conclude that intense light elicited PER2 has an inhibitory function on platelet aggregation in mice. Further, we suggest intense light as a novel therapy to prevent or treat clotting in a clinical setting.
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Affiliation(s)
- Yoshimasa Oyama
- Department of Anesthesiology, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Sydney Shuff
- Department of Anesthesiology, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Pavel Davizon-Castillo
- Department of Pediatrics, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Nathan Clendenen
- Department of Anesthesiology, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Tobias Eckle
- Department of Anesthesiology, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, United States of America
- * E-mail:
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Lu C, Yang Y, Zhao R, Hua B, Xu C, Yan Z, Sun N, Qian R. Role of circadian gene Clock during differentiation of mouse pluripotent stem cells. Protein Cell 2016; 7:820-832. [PMID: 27664156 PMCID: PMC5084156 DOI: 10.1007/s13238-016-0319-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 08/03/2016] [Indexed: 12/15/2022] Open
Abstract
Biological rhythms controlled by the circadian clock are absent in embryonic stem cells (ESCs). However, they start to develop during the differentiation of pluripotent ESCs to downstream cells. Conversely, biological rhythms in adult somatic cells disappear when they are reprogrammed into induced pluripotent stem cells (iPSCs). These studies indicated that the development of biological rhythms in ESCs might be closely associated with the maintenance and differentiation of ESCs. The core circadian gene Clock is essential for regulation of biological rhythms. Its role in the development of biological rhythms of ESCs is totally unknown. Here, we used CRISPR/CAS9-mediated genetic editing techniques, to completely knock out the Clock expression in mouse ESCs. By AP, teratoma formation, quantitative real-time PCR and Immunofluorescent staining, we did not find any difference between Clock knockout mESCs and wild type mESCs in morphology and pluripotent capability under the pluripotent state. In brief, these data indicated Clock did not influence the maintaining of pluripotent state. However, they exhibited decreased proliferation and increased apoptosis. Furthermore, the biological rhythms failed to develop in Clock knockout mESCs after spontaneous differentiation, which indicated that there was no compensational factor in most peripheral tissues as described in mice models before (DeBruyne et al., 2007b). After spontaneous differentiation, loss of CLOCK protein due to Clock gene silencing induced spontaneous differentiation of mESCs, indicating an exit from the pluripotent state, or its differentiating ability. Our findings indicate that the core circadian gene Clock may be essential during normal mESCs differentiation by regulating mESCs proliferation, apoptosis and activity.
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Affiliation(s)
- Chao Lu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
- Research Center on Aging and Medicine, Fudan University, Shanghai, 200032, China
| | - Yang Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Ran Zhao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Bingxuan Hua
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Chen Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Zuoqin Yan
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Ning Sun
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China.
- Research Center on Aging and Medicine, Fudan University, Shanghai, 200032, China.
- State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200032, China.
| | - Ruizhe Qian
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China.
- Research Center on Aging and Medicine, Fudan University, Shanghai, 200032, China.
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Abstract
The hematologic system performs a number of essential functions, including oxygen transport, the execution of the immune response against tumor cells and invading pathogens, and hemostasis (blood clotting). These roles are performed by erythrocytes (red blood cells), leukocytes (white blood cells), and thrombocytes (platelets), respectively. Critically, circadian rhythms are evident in the function of all 3 cell types. In this review, we describe these oscillations, explore their mechanistic bases, and highlight their key implications. Since erythrocytes are anucleate, circadian rhythms in these cells testify to the existence of a nontranscriptional circadian clock. From a clinical perspective, leukocyte rhythms could underlie daily variation in the severity of allergic reactions, the symptoms of chronic inflammatory diseases, and the body’s response to infection, while the rhythmic properties of thrombocytes may explain daily fluctuations in the incidence of heart attack and stroke. Consequently, the efficacy of treatments for these conditions is likely to depend on the timing of their administration. Last, we outline preliminary evidence that circadian disruption in the hematologic system could contribute to the deleterious effects of poor diet, shift work, and alcohol abuse on human health.
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Affiliation(s)
- David Pritchett
- Institute of Metabolic Science, Department of Clinical Neurosciences, University of Cambridge, UK
| | - Akhilesh B. Reddy
- Institute of Metabolic Science, Department of Clinical Neurosciences, University of Cambridge, UK
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Singh A, Verma A, Nityanand S, Chaudhary R, Elhence P. Circulating thrombopoietin levels in normal healthy blood donors and in aplastic anemia patients in relation to disease severity. Asian J Transfus Sci 2015; 9:70-3. [PMID: 25722577 PMCID: PMC4339937 DOI: 10.4103/0973-6247.150956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: Thrombopoietin (TPO) is the key hematopoietic growth factor regulating the production of platelets from bone marrow megakaryocytes and maintaining platelet hemostasis. This study was done to find any relationship between the levels of thrombopoietin and the severity of disease in patients with aplastic anemia. Materials and Methods: Serum samples were collected from 52 patients with a confirmed diagnosis of aplastic anemia and 45 normal healthy blood donors of both sexes over a period of 2 years, and TPO was estimated by using commercially available TPO-specific-enzyme-linked immunosorbent assay. Results: The median TPO level of 1190 pg/ml (range 625-7651 pg/ml) in aplastic anemia patients was significantly higher than the median TPO level of 121.1 pg/ml (81.25-237.7 pg/ml) in normal healthy blood donors (P = 0.000). No significant difference was observed in TPO levels of male and female patients (P = 0.453). The median TPO concentrations observed in very severe aplastic anemia, severe aplastic anemia, and nonsevere aplastic anemia were 2765 pg/ml (range 625-6451 pg/ml), 1190 pg/ml (range 672.1-7651 pg/ml), and 1111.5 pg/ml (range 761.1-2289.2 pg/ml), respectively. TPO in patients of very severe aplastic anemia was significantly higher than patients of nonsevere aplastic anemia (P = 0.043), with no significant relation among rest of the groups. Discussion: TPO levels in aplastic anemia patients were significantly higher than in healthy blood donors; however, in aplastic anemia patients TPO levels were significantly higher only in patients with very severe disease.
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Affiliation(s)
- Abhay Singh
- Department of Transfusion Medicine, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Anupam Verma
- Department of Transfusion Medicine, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Soniya Nityanand
- Department of Hematology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Rajendra Chaudhary
- Department of Transfusion Medicine, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Priti Elhence
- Department of Transfusion Medicine, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
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Maury E, Hong HK, Bass J. Circadian disruption in the pathogenesis of metabolic syndrome. DIABETES & METABOLISM 2014; 40:338-46. [PMID: 24433933 DOI: 10.1016/j.diabet.2013.12.005] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 12/15/2013] [Accepted: 12/16/2013] [Indexed: 12/19/2022]
Abstract
Metabolic syndrome is a multifactorial process induced by a combination of genetic and environmental factors and recent evidence has highlighted that circadian disruption and sleep loss contribute to disease pathogenesis. Emerging work in experimental genetic models has provided insight into the mechanistic basis for clock disruption in disease. Indeed, disruption of the clock system perturbs both neuroendocrine pathways within the hypothalamus important in feeding and energetics, in addition to peripheral tissues involved in glucose and lipid metabolism. This review illustrates the impact of molecular clock disruptions at the level of both brain and behavior and peripheral tissues, with a focus on how such dysregulation in turn impacts lipid and glucose homeostasis, inflammation and cardiovascular function. New insight into circadian biology may ultimately lead to improved therapeutics for metabolic syndrome and cardiovascular disease in humans.
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Affiliation(s)
- E Maury
- Department of Medicine, Feinberg School of Medicine, Northwestern University, 303 E Superior Street, Lurie 7-220, Chicago, Illinois 60611, USA.
| | - H K Hong
- Department of Medicine, Feinberg School of Medicine, Northwestern University, 303 E Superior Street, Lurie 7-220, Chicago, Illinois 60611, USA
| | - J Bass
- Department of Medicine, Feinberg School of Medicine, Northwestern University, 303 E Superior Street, Lurie 7-220, Chicago, Illinois 60611, USA.
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