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Villeda-González JD, Gómez-Olivares JL, Baiza-Gutman LA. New paradigms in the study of the cholinergic system and metabolic diseases: Acetyl-and-butyrylcholinesterase. J Cell Physiol 2024; 239:e31274. [PMID: 38605655 DOI: 10.1002/jcp.31274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/13/2024]
Abstract
Acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) are enzymes that belong to the neuromuscular cholinergic system, their main function is to hydrolyze the neurotransmitter acetylcholine (ACh), through their hydrolysis these enzymes regulate the neuronal and neuromuscular cholinergic system. They have recently attracted considerable attention due to the discovery of new enzymatic and nonenzymatic functions. These discoveries have aroused the interest of numerous scientists, consolidating the relevance of this group of enzymes. Recent investigations have revealed a positive correlation between several risk factors for metabolic syndrome (MetS) and the expression of cholinesterases (ChE's), which underscore the impact of high ChE's activity on the pro-inflammatory state associated with MetS. In addition, the excessive hydrolysis of ACh and other choline esters (succinylcholine, propionylcholine, butyrylcholine, etc.) by both ChE's results in the overproduction of fatty acid precursor metabolites, which facilitate the synthesis of very low-density lipoproteins and triacylglycerols. Participation in these processes may represent the link between ChE's and metabolic disorders. However, further scientific research is required to fully elucidate the involvement of ChE's in metabolic diseases. This review aims to collect recent research studies that contribute to understanding the association between the cholinergic system and metabolic diseases.
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Affiliation(s)
- Juan David Villeda-González
- Estancia Posdoctoral CONAHCYT, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - José Luis Gómez-Olivares
- Laboratorio de Biomembranas, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, México City, México
| | - Luis Arturo Baiza-Gutman
- Laboratorio en Biología del Desarrollo, Unidad de Morfología y Función, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Estado de México, México
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Louvrou V, Solianik R, Brazaitis M, Erhardt S. Exploring the effect of prolonged fasting on kynurenine pathway metabolites and stress markers in healthy male individuals. Eur J Clin Nutr 2024; 78:677-683. [PMID: 38789718 PMCID: PMC11300305 DOI: 10.1038/s41430-024-01451-7] [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: 12/07/2023] [Accepted: 05/08/2024] [Indexed: 05/26/2024]
Abstract
BACKGROUND/OBJECTIVES Prolonged fasting triggers a stress response within the human body. Our objective was to investigate the impact of prolonged fasting, in conjunction with stress, on kynurenine pathway metabolites. SUBJECTS/METHODS Healthy males were divided into fasting group (zero-calorie-restriction) for 6 days (FAST, n = 14), and control group (CON, n = 10). Blood and saliva samples were collected at baseline, Day 2, Day 4, Day 6 during fasting period, and 1 week after resuming regular diet. Plasma levels of kynurenine pathway metabolites were measured using ultra-performance liquid chromatography-mass spectrometry (UPLC-MS/MS). Plasma and salivary samples were analyzed for stress markers. RESULTS A pronounced activation of the kynurenine pathway in individuals on FAST trial was revealed. Concentrations of picolinic acid (PIC), kynurenic acid (KYNA) and 3-hydroxykynurenine (3-HK) were significantly increased, with peak levels observed on Day 6 (P < 0.0001). Conversely, concentrations of tryptophan (TRP) and quinolinic acid (QUIN) decreased (P < 0.0001), while kynurenine (KYN) and nicotinamide (NAM) levels remained stable. Cortisol and noradrenaline concentrations remained unchanged. However, adrenaline levels significantly increased on Day 4 within FAST compared to CON (P = 0.005). Notably, all deviations in kynurenine pathway metabolite levels returned to baseline values upon resuming regular diet following the 6-day fasting regimen, even when weight and BMI parameters were not restored. CONCLUSIONS Extended fasting over 6 days induces the kynurenine pathway and has minimal effects on stress markers. Restoration of metabolite concentrations upon regular feeding implies rapid adaptation of the kynurenine pathway synthetic enzymes to maintain homeostasis when faced with perturbations.
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Affiliation(s)
- Varvara Louvrou
- Institute of Sport Science and Innovations, Lithuanian Sports University, Kaunas, Lithuania
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Rima Solianik
- Institute of Sport Science and Innovations, Lithuanian Sports University, Kaunas, Lithuania
| | - Marius Brazaitis
- Institute of Sport Science and Innovations, Lithuanian Sports University, Kaunas, Lithuania
| | - Sophie Erhardt
- Institute of Sport Science and Innovations, Lithuanian Sports University, Kaunas, Lithuania.
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
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Solianik R, Židonienė K, Baranauskienė N, Brazaitis M. Fasting for 48 h induced similar glucose intolerance in both sexes despite greater perceived stress and decreased estradiol levels in females. Eur J Appl Physiol 2024; 124:1449-1459. [PMID: 38108909 DOI: 10.1007/s00421-023-05378-y] [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: 05/08/2023] [Accepted: 11/16/2023] [Indexed: 12/19/2023]
Abstract
PURPOSE The purpose of this study was to compare the effects of fasting for 48 h on the evoked insulin and glucose responses in males and females, and to explore factors such as stress and estrogen levels that might influence these responses. METHODS Healthy, nonobese male (n = 14) and female (n = 14) subjects underwent 48-h fasting trial. Changes in glucose tolerance and insulin levels in response to the oral glucose tolerance test, subjectively perceived stress and catecholamine concentrations were measured in all participants. Estrogen levels were also measured in the female participants during the 48-h fast. RESULTS Glucose area under the curve (AUC) values increased similarly in both sexes after 48-h fasting (P < 0.05), but females displayed a greater rise in insulin AUC values than males (P < 0.05). Fasting increased plasma epinephrine concentrations in both sexes (P < 0.05), whereas plasma norepinephrine concentrations and subjective stress increased only in females (P < 0.05). Plasma 17-β-estradiol concentrations in females decreased after fasting (P < 0.05). CONCLUSION Fasting for 48 h induced a similar glucose intolerance in females and males, despite decreased 17-β-estradiol levels and greater psychological and physiological stress in females. These differences represent a plausible explanation for the gender-based differences observed in insulin responses. TRIAL REGISTRATION Retrospectively registered on ClinicalTrials.gov (NCT05545943) in September 19, 2022.
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Affiliation(s)
- Rima Solianik
- Institute of Sport Science and Innovations, Lithuanian Sports University, Sporto Str, 44221, Kaunas, Lithuania.
| | - Katerina Židonienė
- Institute of Sport Science and Innovations, Lithuanian Sports University, Sporto Str, 44221, Kaunas, Lithuania
| | - Neringa Baranauskienė
- Institute of Sport Science and Innovations, Lithuanian Sports University, Sporto Str, 44221, Kaunas, Lithuania
| | - Marius Brazaitis
- Institute of Sport Science and Innovations, Lithuanian Sports University, Sporto Str, 44221, Kaunas, Lithuania
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Rivi V, Batabyal A, Benatti C, Sarti P, Blom JMC, Tascedda F, Lukowiak K. A translational and multidisciplinary approach to studying the Garcia effect, a higher form of learning with deep evolutionary roots. J Exp Biol 2024; 227:jeb247325. [PMID: 38639079 DOI: 10.1242/jeb.247325] [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] [Indexed: 04/20/2024]
Abstract
Animals, including humans, learn and remember to avoid a novel food when its ingestion is followed, hours later, by sickness - a phenomenon initially identified during World War II as a potential means of pest control. In the 1960s, John Garcia (for whom the effect is now named) demonstrated that this form of conditioned taste aversion had broader implications, showing that it is a rapid but long-lasting taste-specific food aversion with a fundamental role in the evolution of behaviour. From the mid-1970s onward, the principles of the Garcia effect were translated to humans, showing its role in different clinical conditions (e.g. side-effects linked to chemotherapy). However, in the last two decades, the number of studies on the Garcia effect has undergone a considerable decline. Since its discovery in rodents, this form of learning was thought to be exclusive to mammals; however, we recently provided the first demonstration that a Garcia effect can be formed in an invertebrate model organism, the pond snail Lymnaea stagnalis. Thus, in this Commentary, after reviewing the experiments that led to the first characterization of the Garcia effect in rodents, we describe the recent evidence for the Garcia effect in L. stagnalis, which may pave the way for future studies in other invertebrates and mammals. This article aims to inspire future translational and ecological studies that characterize the conserved mechanisms underlying this form of learning with deep evolutionary roots, which can be used to address a range of different biological questions.
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Affiliation(s)
- Veronica Rivi
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Anuradha Batabyal
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada, T2N 1N4
- Department of Physical and Natural Sciences, FLAME University, Pune - 412115, Maharashtra, India
| | - Cristina Benatti
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- Centre of Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Pierfrancesco Sarti
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Johanna Maria Catharina Blom
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- Centre of Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Fabio Tascedda
- Centre of Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, 41125 Modena, Italy
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- CIB, Consorzio Interuniversitario Biotecnologie, 34148 Trieste, Italy
| | - Ken Lukowiak
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada, T2N 1N4
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Mackieh R, Al-Bakkar N, Kfoury M, Okdeh N, Pietra H, Roufayel R, Legros C, Fajloun Z, Sabatier JM. Unlocking the Benefits of Fasting: A Review of its Impact on Various Biological Systems and Human Health. Curr Med Chem 2024; 31:1781-1803. [PMID: 38018193 DOI: 10.2174/0109298673275492231121062033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/26/2023] [Accepted: 10/17/2023] [Indexed: 11/30/2023]
Abstract
Fasting has gained significant attention in recent years for its potential health benefits in various body systems. This review aims to comprehensively examine the effects of fasting on human health, specifically focusing on its impact on different body's physiological systems. The cardiovascular system plays a vital role in maintaining overall health, and fasting has shown promising effects in improving cardiovascular health markers such as blood pressure, cholesterol levels, and triglyceride levels. Additionally, fasting has been suggested to enhance insulin sensitivity, promote weight loss, and improve metabolic health, thus offering potential benefits to individuals with diabetes and metabolic disorders. Furthermore, fasting can boost immune function, reduce inflammation, enhance autophagy, and support the body's defense against infections, cancer, and autoimmune diseases. Fasting has also demonstrated a positive effect on the brain and nervous system. It has been associated with neuroprotective properties, improving cognitive function, and reducing the risk of neurodegenerative diseases, besides the ability of increasing the lifespan. Hence, understanding the potential advantages of fasting can provide valuable insights for individuals and healthcare professionals alike in promoting health and wellbeing. The data presented here may have significant implications for the development of therapeutic approaches and interventions using fasting as a potential preventive and therapeutic strategy.
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Affiliation(s)
- Rawan Mackieh
- Department of Biology, Faculty of Sciences, Lebanese University, Campus Michel Slayman Ras Maska, Tripoli 1352, Lebanon
| | - Nadia Al-Bakkar
- Faculty of Health Sciences, College of Life Sciences, Beirut Arab University, Beirut Campus, P.O. Box 11 50 20, Riad El Solh, Beirut 11072809, Lebanon
| | - Milena Kfoury
- Department of Biology, Faculty of Sciences, Lebanese University, Campus Michel Slayman Ras Maska, Tripoli 1352, Lebanon
| | - Nathalie Okdeh
- Department of Biology, Faculty of Sciences, Lebanese University, Campus Michel Slayman Ras Maska, Tripoli 1352, Lebanon
| | - Hervé Pietra
- Association Esprit Jeûne & Fasting Spirit, 226, Chemin du Pélican, Toulon 83000, France
| | - Rabih Roufayel
- College of Engineering and Technology, American University of the Middle East, Hadiya, Kuwait
| | - Christian Legros
- Univ Angers, INSERM, CNRS, MITOVASC, Team 2 CarMe, SFR ICAT, Angers 49000, France
| | - Ziad Fajloun
- Department of Biology, Faculty of Sciences, Lebanese University, Campus Michel Slayman Ras Maska, Tripoli 1352, Lebanon
- Laboratory of Applied Biotechnology (LBA3B), Azm Center for Research in Biotechnology and its Applications, EDST, Lebanese University, Tripoli 1300, Lebanon
| | - Jean-Marc Sabatier
- Aix-- Marseille Université, CNRS, INP, Inst Neurophysiopathol, Marseille 13385, France
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Putra SED, Humardani FM, Mulyanata LT, Tanaya LTA, Wijono H, Sulistomo HW, Kesuma D, Ikawaty R. Exploring diet-induced promoter hypomethylation and PDK4 overexpression: implications for type 2 diabetes mellitus. Mol Biol Rep 2023; 50:8949-8958. [PMID: 37707772 DOI: 10.1007/s11033-023-08794-7] [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: 07/06/2023] [Accepted: 08/30/2023] [Indexed: 09/15/2023]
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is a metabolic disorder characterized by limited metabolic flexibility in the body. Such limitation implicates the pyruvate dehydrogenase kinase 4 (PDK4) gene Poor nutrition, frequently observed among Southeast Asians usually involves excessive intakes of carbohydrates and monosodium glutamate (MSG), that have been frequently linked to an increased risk of T2DM. METHODS The 14-week study aimed to assess the effects of high-carbohydrate (HC), high-MSG (HMSG), and a combination of high-carbohydrate and high-MSG (HCHMSG) diets on the development of T2DM using male mice. To assess the effects, the male mice were divided into four groups: control (C), HC, HMSG, and HCHMSG for 14 weeks. RESULTS After 14 weeks, both the HC and HCHMSG groups showed signs of T2DM (168.83 ± 32.33; 156.42 ± 32.46). The blood samples from the HMSG, HC, and HCHMSG groups (57.67 ± 2.882; 49.22 ± 7.36; 48.9 ± 6.43) as well as skeletal muscle samples from the HMSG, HC, and HCHMSG groups (57.78 ± 8.54; 42.13 ± 7.25; 37.57 ± 10.42) exhibited a gradual hypomethylation. The HC groups particularly displayed significant PDK4 gene expression in skeletal muscle. A progressive overexpression of the PDK4 gene was observed as well in the HMSG, HCHMSG, and HC groups (2.03 ± 3.097; 3.21 ± 2.94; 5.86 ± 2.54). CONCLUSIONS These findings suggest that T2DM can be induced by high-carbohydrate and high-MSG diets. However, the sole consumption of high MSG did not lead to the development of T2DM. Further research should focus on conducting long-term studies to fully comprehend the impact of a high MSG diet on individuals with pre-existing T2DM.
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Affiliation(s)
| | - Farizky Martriano Humardani
- Faculty of Medicine, University of Surabaya, Surabaya, 60292, Indonesia
- Magister in Biomedical Science Program, Faculty of Medicine, Faculty of Medicine Universitas Brawijaya, Malang, 65112, Indonesia
| | | | | | - Heru Wijono
- Faculty of Medicine, University of Surabaya, Surabaya, 60292, Indonesia
| | - Hikmawan Wahyu Sulistomo
- Magister in Biomedical Science Program, Faculty of Medicine, Faculty of Medicine Universitas Brawijaya, Malang, 65112, Indonesia
| | - Dini Kesuma
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Surabaya, Surabaya, 60292, Indonesia
| | - Risma Ikawaty
- Faculty of Medicine, University of Surabaya, Surabaya, 60292, Indonesia.
- , Raya Kali Rungkut Street, Surabaya, 60292, East Java, Indonesia.
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Kupusovic J, Weber M, Bruns F, Kessler L, Pesch E, Bohnen J, Dobrev D, Rassaf T, Wakili R, Rischpler C, Siebermair J. PET/CT-identified atrial hypermetabolism is an index of atrial inflammation in patients with atrial fibrillation. J Nucl Cardiol 2023; 30:1761-1772. [PMID: 37592057 DOI: 10.1007/s12350-023-03248-w] [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: 10/28/2022] [Accepted: 01/17/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND Although atrial inflammation has been implicated in the pathophysiology of atrial fibrillation (AF), the identification of atrial inflammation remains challenging. We aimed to establish a positron emission tomography/computed tomography (PET/CT) protocol with 18Fluor-labeled fluorodeoxyglucose (18F-FDG) for the detection of atrial hypermetabolism as surrogate for inflammation in AF. METHODS We included n = 75 AF and n = 75 non-AF patients undergoing three common PET/CT protocols (n = 25 per group) optimized for the detection of (a) inflammation and (b) malignancy in predefined fasting protocols, and (c) cardiac viability allowing for maximized glucose uptake. 18F-FDG-uptake was analyzed in predefined loci. RESULTS Differences of visual atrial uptake in AF vs non-AF patients were observed in fasting (inflammation [13/25 vs 0/25] and malignancy [10/25 vs 0/25]) protocols while viability protocols showed non-specific uptake in both the groups. In the inflammation protocol, AF patients showed higher uptake in the right atrium [(SUVmax: 2.5 ± .7 vs 2.0 ± .7, P = .01), atrial appendage (SUVmax: 2.4 ± .7 vs 2.0 ± .6, P = .03), and epicardial adipose tissue (SUVmax: 1.4 ± .5 vs 1.1 ± .4, P = .04)]. Malignancy and viability protocols failed to differentiate between AF and non-AF. CONCLUSION Glucose uptake suppression protocols appear suitable in detecting differential atrial 18F-FDG uptake between AF and non-AF patients. Imaging-based assessment of inflammation might help to stratify AF patients offering individualized therapeutic approaches.
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Affiliation(s)
- J Kupusovic
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center Essen, University Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- Department of Cardiology and Vascular Medicine, University Hospital Frankfurt, Goethe-University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - M Weber
- Department of Nuclear Medicine, University Duisburg-Essen, Essen, Germany
| | - F Bruns
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center Essen, University Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- Institute of Pharmacology, West German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany
| | - L Kessler
- Department of Nuclear Medicine, University Duisburg-Essen, Essen, Germany
| | - E Pesch
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center Essen, University Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
| | - J Bohnen
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center Essen, University Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
| | - D Dobrev
- Institute of Pharmacology, West German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany
- Department of Molecular Physiology & Biophysics, Baylor College of Medicine, Houston, TX, USA
- Department of Medicine and Research Center, Montreal Heart Institute and Université de Montréal, Montréal, QC, Canada
| | - T Rassaf
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center Essen, University Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
| | - R Wakili
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center Essen, University Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany.
- Department of Cardiology and Vascular Medicine, University Hospital Frankfurt, Goethe-University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.
- German Centre for Cardiovascular Research (DZHK) Partner Site Rhine/Main, Frankfurt, Germany.
| | - C Rischpler
- Department of Nuclear Medicine, University Duisburg-Essen, Essen, Germany
- Department of Nuclear Medicine, Klinikum Stuttgart, Stuttgart, Germany
| | - J Siebermair
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center Essen, University Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- Department of Cardiology, Krankenhaus Göttlicher Heiland GmbH, Vienna, Austria
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Warner SO, Dai Y, Sheanon N, Yao MV, Cason RL, Arbabi S, Patel SB, Lindquist D, Winnick JJ. Short-term fasting lowers glucagon levels under euglycemic and hypoglycemic conditions in healthy humans. JCI Insight 2023; 8:e169789. [PMID: 37166980 PMCID: PMC10371233 DOI: 10.1172/jci.insight.169789] [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: 02/15/2023] [Accepted: 05/09/2023] [Indexed: 05/12/2023] Open
Abstract
Fasting is associated with increased susceptibility to hypoglycemia in people with type 1 diabetes, thereby making it a significant health risk. To date, the relationship between fasting and insulin-induced hypoglycemia has not been well characterized, so our objective was to determine whether insulin-independent factors, such as counterregulatory hormone responses, are adversely impacted by fasting in healthy control individuals. Counterregulatory responses to insulin-induced hypoglycemia were measured in 12 healthy people during 2 metabolic studies. During one study, participants ate breakfast and lunch, after which they underwent a 2-hour bout of insulin-induced hypoglycemia (FED). During the other study, participants remained fasted prior to hypoglycemia (FAST). As expected, hepatic glycogen concentrations were lower in FAST, and associated with diminished peak glucagon levels and reduced endogenous glucose production (EGP) during hypoglycemia. Accompanying lower EGP in FAST was a reduction in peripheral glucose utilization, and a resultant reduction in the amount of exogenous glucose required to maintain glycemia. These data suggest that whereas a fasting-induced lowering of glucose utilization could potentially delay the onset of insulin-induced hypoglycemia, subsequent reductions in glucagon levels and EGP are likely to encumber recovery from it. As a result of this diminished metabolic flexibility in response to fasting, susceptibility to hypoglycemia could be enhanced in patients with type 1 diabetes under similar conditions.
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Affiliation(s)
- Shana O. Warner
- Department of Internal Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Yufei Dai
- Department of Internal Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Nicole Sheanon
- Department of Pediatrics, Division of Pediatric Endocrinology, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Michael V. Yao
- Department of Pediatrics, Division of Endocrinology, University of New Mexico, Albuquerque, New Mexico, USA
| | - Rebecca L. Cason
- Department of Internal Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Shahriar Arbabi
- Department of Internal Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Shailendra B. Patel
- Department of Internal Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Diana Lindquist
- Imaging Research Center, Department of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jason J. Winnick
- Department of Internal Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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Tripolt NJ, Hofer SJ, Pferschy PN, Aziz F, Durand S, Aprahamian F, Nirmalathasan N, Waltenstorfer M, Eisenberg T, Obermayer AMA, Riedl R, Kojzar H, Moser O, Sourij C, Bugger H, Oulhaj A, Pieber TR, Zanker M, Kroemer G, Madeo F, Sourij H. Glucose Metabolism and Metabolomic Changes in Response to Prolonged Fasting in Individuals with Obesity, Type 2 Diabetes and Non-Obese People-A Cohort Trial. Nutrients 2023; 15:511. [PMID: 36771218 PMCID: PMC9921960 DOI: 10.3390/nu15030511] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/21/2023] Open
Abstract
Metabolic regulation of glucose can be altered by fasting periods. We examined glucose metabolism and metabolomics profiles after 12 h and 36 h fasting in non-obese and obese participants and people with type 2 diabetes using oral glucose tolerance (OGTT) and intravenous glucose tolerance testing (IVGTT). Insulin sensitivity was estimated by established indices and mass spectrometric metabolomics was performed on fasting serum samples. Participants had a mean age of 43 ± 16 years (62% women). Fasting levels of glucose, insulin and C-peptide were significantly lower in all cohorts after 36 h compared to 12 h fasting (p < 0.05). In non-obese participants, glucose levels were significantly higher after 36 h compared to 12 h fasting at 120 min of OGTT (109 ± 31 mg/dL vs. 79 ± 18 mg/dL; p = 0.001) but insulin levels were lower after 36 h of fasting at 30 min of OGTT (41.2 ± 34.1 mU/L after 36 h vs. 56.1 ± 29.7 mU/L; p < 0.05). In contrast, no significant differences were observed in obese participants or people with diabetes. Insulin sensitivity improved in all cohorts after 36 h fasting. In line, metabolomics revealed subtle baseline differences and an attenuated metabolic response to fasting in obese participants and people with diabetes. Our data demonstrate an improved insulin sensitivity after 36 h of fasting with higher glucose variations and reduced early insulin response in non-obese people only.
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Affiliation(s)
- Norbert J. Tripolt
- Interdisciplinary Metabolic Medicine Trials Unit, Division of Endocrinology and Diabetology, Medical University of Graz, 8010 Graz, Austria
| | - Sebastian J. Hofer
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Humboldtstraße 50, 8010 Graz, Austria
- BioTechMed Graz, 8010 Graz, Austria
- Field of Excellence BioHealth, University of Graz, 8010 Graz, Austria
- Inserm U1138, Equipe Labellisée par la Ligue Contre le Cancer, Centre de Recherche des Cordeliers, Institut Universitaire de France, Sorbonne Université, Université de Paris, 75006 Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, 94805 Villejuif, France
| | - Peter N. Pferschy
- Interdisciplinary Metabolic Medicine Trials Unit, Division of Endocrinology and Diabetology, Medical University of Graz, 8010 Graz, Austria
- Center for Biomarker Research in Medicine (CBmed), 8010 Graz, Austria
| | - Faisal Aziz
- Interdisciplinary Metabolic Medicine Trials Unit, Division of Endocrinology and Diabetology, Medical University of Graz, 8010 Graz, Austria
| | - Sylvère Durand
- Inserm U1138, Equipe Labellisée par la Ligue Contre le Cancer, Centre de Recherche des Cordeliers, Institut Universitaire de France, Sorbonne Université, Université de Paris, 75006 Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, 94805 Villejuif, France
| | - Fanny Aprahamian
- Inserm U1138, Equipe Labellisée par la Ligue Contre le Cancer, Centre de Recherche des Cordeliers, Institut Universitaire de France, Sorbonne Université, Université de Paris, 75006 Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, 94805 Villejuif, France
| | - Nitharsshini Nirmalathasan
- Inserm U1138, Equipe Labellisée par la Ligue Contre le Cancer, Centre de Recherche des Cordeliers, Institut Universitaire de France, Sorbonne Université, Université de Paris, 75006 Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, 94805 Villejuif, France
| | - Mara Waltenstorfer
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Humboldtstraße 50, 8010 Graz, Austria
| | - Tobias Eisenberg
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Humboldtstraße 50, 8010 Graz, Austria
- BioTechMed Graz, 8010 Graz, Austria
- Field of Excellence BioHealth, University of Graz, 8010 Graz, Austria
| | - Anna M. A. Obermayer
- Interdisciplinary Metabolic Medicine Trials Unit, Division of Endocrinology and Diabetology, Medical University of Graz, 8010 Graz, Austria
| | - Regina Riedl
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, 8010 Graz, Austria
| | - Harald Kojzar
- Interdisciplinary Metabolic Medicine Trials Unit, Division of Endocrinology and Diabetology, Medical University of Graz, 8010 Graz, Austria
- Center for Biomarker Research in Medicine (CBmed), 8010 Graz, Austria
| | - Othmar Moser
- Interdisciplinary Metabolic Medicine Trials Unit, Division of Endocrinology and Diabetology, Medical University of Graz, 8010 Graz, Austria
- Department of Sport Science, Division of Exercise Physiology and Metabolism, University of Bayreuth, 95440 Bayreuth, Germany
| | - Caren Sourij
- Division of Cardiology, Medical University of Graz, 8010 Graz, Austria
| | - Heiko Bugger
- Division of Cardiology, Medical University of Graz, 8010 Graz, Austria
| | - Abderrahim Oulhaj
- Department of Epidemiology and Population Health, College of Medicine and Health Sciences, Khalifa University Abu Dhabi, Al-Ain P.O. Box 17666, United Arab Emirates
| | - Thomas R. Pieber
- BioTechMed Graz, 8010 Graz, Austria
- Center for Biomarker Research in Medicine (CBmed), 8010 Graz, Austria
- Division of Endocrinology and Diabetology, Medical University of Graz, 8010 Graz, Austria
| | - Matthias Zanker
- Interdisciplinary Metabolic Medicine Trials Unit, Division of Endocrinology and Diabetology, Medical University of Graz, 8010 Graz, Austria
| | - Guido Kroemer
- Inserm U1138, Equipe Labellisée par la Ligue Contre le Cancer, Centre de Recherche des Cordeliers, Institut Universitaire de France, Sorbonne Université, Université de Paris, 75006 Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, 94805 Villejuif, France
- Department of Biology, Institut du Cancer Paris CARPEM, Hôpital Européen Georges Pompidou, AP-HP, 75015 Paris, France
| | - Frank Madeo
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Humboldtstraße 50, 8010 Graz, Austria
- BioTechMed Graz, 8010 Graz, Austria
- Field of Excellence BioHealth, University of Graz, 8010 Graz, Austria
| | - Harald Sourij
- Interdisciplinary Metabolic Medicine Trials Unit, Division of Endocrinology and Diabetology, Medical University of Graz, 8010 Graz, Austria
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10
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Omagari K, Maruta A, Yayama N, Yoshida Y, Okamoto K, Shirouchi B, Takeuchi S, Suruga K, Koba K, Ichimura-Shimizu M, Tsuneyama K. The Effects of Overnight Fasting Duration on Glucose and Lipid Metabolism in a Sprague-Dawley Rat Model of Nonalcoholic Steatohepatitis with Advanced Fibrosis. J Nutr Sci Vitaminol (Tokyo) 2023; 69:357-369. [PMID: 37940576 DOI: 10.3177/jnsv.69.357] [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: 11/10/2023]
Abstract
Nonalcoholic steatohepatitis (NASH) can progress to hepatic fibrosis, and is associated with cardiovascular and liver-related mortality. To understand the pathogenesis of NASH, reliable animal models of the disease are useful. In animal studies, the animals are usually fasted overnight before biospecimens are taken, but little is known about the effects of fasting. Here, we investigated the impact of overnight fasting for approximately 9 to 17 h on glucose and lipid metabolism in a Sprague-Dawley (SD) rat model of diet-induced moderate and advanced NASH in comparison to normal SD rats. Our results revealed that in the moderate NASH model rats, the fasting duration did not affect glucose and lipid metabolism, the histopathological findings, or the hepatic mRNA expression levels of genes related to lipid metabolism, cholesterol metabolism, inflammation, fibrosis, and oxidative stress. In contrast, in the normal rats, significant fasting time-dependent reductions were observed in the epididymal fat pad weight and the hepatic mRNA expression levels of adipose differentiation-related protein and heme oxygenase-1. Moreover, in the advanced NASH model rats, a significant fasting time-dependent reduction and increase were observed in the serum insulin level and mRNA expression level of alpha-smooth muscle actin, respectively. Our present results suggest that the influence of the overnight fasting duration differs among the healthy condition, moderate NASH, and advanced NASH statuses. Further studies are needed in humans to determine the appropriate overnight fasting duration for the accurate evaluation of glucose and lipid metabolism in NASH patients.
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Affiliation(s)
- Katsuhisa Omagari
- Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki
| | - Ayumi Maruta
- Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki
| | - Natsuki Yayama
- Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki
| | - Yuki Yoshida
- Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki
| | - Kyoko Okamoto
- Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki
| | - Bungo Shirouchi
- Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki
| | - Shouhei Takeuchi
- Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki
| | - Kazuhito Suruga
- Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki
| | - Kazunori Koba
- Department of Nutritional Science, Faculty of Nursing and Nutrition, University of Nagasaki
| | | | - Koichi Tsuneyama
- Department of Pathology and Laboratory Medicine, Tokushima University Graduate School
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11
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Methnani J, Hajbelgacem M, Ach T, Chaieb F, Sellami S, Bouslama A, Zaouali M, Omezzine A, Bouhlel E. Effect of Pre-Meal Metformin With or Without an Acute Exercise Bout on Postprandial Lipemic and Glycemic Responses in Metabolic Syndrome Patients: A Randomized, Open Label, Crossover Study. J Cardiovasc Pharmacol Ther 2023; 28:10742484231156318. [PMID: 36802839 DOI: 10.1177/10742484231156318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
INTRODUCTION Both exercise and pre-meal metformin could lower postprandial glucose and lipid profiles. AIMS To explore whether pre-meal metformin administration is superior to metformin administration with the meal in reducing postprandial lipid and glucose metabolism, and whether its combination with exercise confer superior benefits in metabolic syndrome patients. MATERIALS AND METHODS In a randomized crossover design, 15 metabolic syndrome patients were assigned to 6 sequences including 3 experimental conditions: metformin administration with a test meal (met-meal), metformin administration 30 min prior to a test meal (pre-meal-met) with or without an exercise bout designed to expend 700 Kcal at 60% VO2 peak performed the evening just before pre-meal-met condition. Only 13 participants (3 males, 10 females; age: 46 ± 9.86, HbA1c: 6.23 ± 0.36) were included in the final analysis. RESULTS Postprandial triglyceridemia was unaffected by any condition (all P > .05). However, both pre-meal-met (-7.1%, P = .009) and pre-meal-metx (-8.2%, P = .013) significantly reduced total cholesterol AUC with no significant differences between the two latter condition (P = .616). Similarly, LDL-cholesterol levels were significantly lower during both pre-meal-met (-10.1%, P = .013) and pre-meal-metx (-10.7%, P = .021) compared to met-meal with no difference between latter conditions (P = .822). Plasma glucose AUC was significantly reduced by pre-meal-metx compared to both pre-meal-met (-7.5%, P = .045) and met-meal (-8%, P = .03). Insulin AUC was significantly lower during pre-meal-metx compared to met-meal (-36.4%, P = .044). CONCLUSIONS Metformin administration 30 minutes prior to meal seems to exert favorable effects on postprandial TC and LDL-Cholesterol levels compared to its administration with meal. Addition of one exercise bout only improved postprandial glycemia and insulinemia. TRIAL REGISTRY Pan African clinical trial registry, Identifier PACTR202203690920424.
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Affiliation(s)
- Jabeur Methnani
- University of Manouba, High Institute of Sport and Physical Education, Ksar Said, Tunis, Tunisia.,LR12SP11, Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia.,LR19ES09, Laboratoire de Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire Biologie, Médecine et Santé, Faculty of Medicine of Sousse, Sousse, Tunisia
| | - Marwa Hajbelgacem
- LR12SP11, Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia.,Faculty of Pharmacy of Monastir, University of Monastir, Monastir, Tunisia
| | - Taieb Ach
- LR19ES09, Laboratoire de Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire Biologie, Médecine et Santé, Faculty of Medicine of Sousse, Sousse, Tunisia.,Department of Endocrinology, University Hospital of Farhat Hached, Sousse, Tunisia.,Faculty of Medicine of Sousse, University of Sousse, Sousse, Tunisia
| | - Faten Chaieb
- LR19ES09, Laboratoire de Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire Biologie, Médecine et Santé, Faculty of Medicine of Sousse, Sousse, Tunisia.,Faculty of Medicine of Sousse, University of Sousse, Sousse, Tunisia.,Department of Physiology and Functional Exploration, Farhat Hached University Hospital of Sousse, Tunisia
| | - Sana Sellami
- Department of Physiology and Functional Exploration, Farhat Hached University Hospital of Sousse, Tunisia
| | - Ali Bouslama
- LR12SP11, Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia.,Faculty of Pharmacy of Monastir, University of Monastir, Monastir, Tunisia
| | - Monia Zaouali
- LR12SP11, Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia.,Faculty of Medicine of Sousse, University of Sousse, Sousse, Tunisia
| | - Asma Omezzine
- LR12SP11, Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia.,Faculty of Pharmacy of Monastir, University of Monastir, Monastir, Tunisia
| | - Ezdine Bouhlel
- University of Manouba, High Institute of Sport and Physical Education, Ksar Said, Tunis, Tunisia.,LR12SP11, Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
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12
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Sui X, Wang H, Wu F, Yang C, Zhang H, Xu Z, Guo Y, Guo Z, Xin B, Ma T, Li Y, Dai Z. Hepatic metabolite responses to 4-day complete fasting and subsequent refeeding in rats. PeerJ 2022; 10:e14009. [PMID: 36157064 PMCID: PMC9504452 DOI: 10.7717/peerj.14009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 08/15/2022] [Indexed: 01/19/2023] Open
Abstract
Background Fasting has been widely used to improve various metabolic diseases in humans. Adaptive fasting is necessary for metabolic adaptation during prolonged fasting, which could overcome the great advantages of short-term fasting. The liver is the main organ responsible for energy metabolism and metabolic homeostasis. To date, we lack literature that describes the physiologically relevant adaptations of the liver during prolonged fasting and refeeding. For that reason, this study aims to evaluate the response of the liver of Sprague-Dawley (SD) rats to prolonged fasting and refeeding. Methods Sixty-six male SD rats were divided into the fasting groups, which were fasted for 0, 4, 8, 12, 24, 48, 72, or 96 h, and the refeeding groups, which were refed for 1, 3, or 6 days after 96 h of fasting. Serum glucose, TG, FFA, β-hydroxybutyrate, insulin, glucagon, leptin, adiponectin and FGF21 levels were assessed. The glucose content, PEPCK activity, TG concentration and FFA content were measured in liver tissue, and the expression of genes involved in gluconeogenesis (PEPCK and G6Pase), ketogenesis (PPARα, CPT-1a and HMGCS2) and the protein expression of nutrient-sensing signaling molecules (AMPK, mTOR and SIRT1) were determined by RT-qPCR and western blotting, respectively. Results Fasting significantly decreased the body weight, which was totally recovered to baseline after 3 days of refeeding. A 4-day fast triggered an energy metabolic substrate shift from glucose to ketones and caused serum hormone changes and changes in the protein expression levels of nutrient-sensing signaling molecules. Glycogenolysis served as the primary fuel source during the first 24 h of fasting, while gluconeogenesis supplied the most glucose thereafter. Serum FFA concentrations increased significantly with 48 h of fasting. Serum FFAs partly caused high serum β-hydroxybutyrate levels, which became an important energy source with the prolongation of the fasting duration. One day of refeeding quickly reversed the energy substrate switch. Nutrient-sensing signaling molecules (AMPK and SIRT1 but not mTOR signaling) were highly expressed at the beginning of fasting (in the first 4 h). Serum insulin and leptin decreased with fasting initiation, and serum glucagon increased, but adiponectin and FGF21 showed no significant changes. Herein, we depicted in detail the timing of the metabolic response and adaptation of the liver to a 4-day water-only fast and subsequent refeeding in rats, which provides helpful support for the design of safe prolonged and intermittent fasting regimens.
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Affiliation(s)
- Xiukun Sui
- Department of Electronic and Information Engineering, Harbin Institute of Technology at Shenzhen, Shenzhen, China,State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China,Space Science and Technology Institute, Shenzhen, China
| | - Hailong Wang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Feng Wu
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Chao Yang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Hongyu Zhang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Zihan Xu
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Yaxiu Guo
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - ZhiFeng Guo
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Bingmu Xin
- Space Science and Technology Institute, Shenzhen, China
| | - Ting Ma
- Department of Electronic and Information Engineering, Harbin Institute of Technology at Shenzhen, Shenzhen, China
| | - Yinghui Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Zhongquan Dai
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
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13
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Reboredo C, González-Navarro CJ, Martínez-López AL, Irache JM. Oral administration of zein-based nanoparticles reduces glycemia and improves glucose tolerance in rats. Int J Pharm 2022; 628:122255. [DOI: 10.1016/j.ijpharm.2022.122255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 11/17/2022]
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14
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Grunnet LG, Bygbjerg IC, Mutabingwa TK, Lajeunesse-Trempe F, Nielsen J, Schmiegelow C, Vaag AA, Ramaiya K, Christensen DL. Influence of placental and peripheral malaria exposure in fetal life on cardiometabolic traits in adult offspring. BMJ Open Diabetes Res Care 2022; 10:10/2/e002639. [PMID: 35379692 PMCID: PMC8981354 DOI: 10.1136/bmjdrc-2021-002639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 03/13/2022] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION Fetal malaria exposure may lead to intrauterine growth restriction and increase the risk of developing diabetes and cardiovascular diseases in adulthood. We investigated the extent to which fetal peripheral and placental malaria exposure impacts insulin sensitivity and secretion, body composition and cardiometabolic health 20 years after in utero malaria exposure. RESEARCH DESIGN AND METHODS We traced 101 men and women in Muheza district, Tanga region whose mothers participated in a malaria chemosuppression during a pregnancy study in 1989-1992. All potential participants were screened for malaria, hepatitis B and HIV to ascertain study eligibility. Seventy-six individuals (44 men, 32 women) were included in this cohort study. The participants underwent a thorough clinical examination including anthropometric measurements, ultrasound scanning for abdominal fat distribution, blood pressure, 75 g oral glucose tolerance test, an intravenous glucose tolerance test followed by a hyperinsulinemic euglycemic clamp and a submaximal exercise test. RESULTS Offspring exposed to placental malaria during pregnancy had significantly higher 30-minute plasma post-glucose load levels, but no significant difference in peripheral insulin resistance, insulin secretion or other cardiometabolic traits compared with non-exposed individuals. CONCLUSIONS Using the state-of-the-art euglycemic clamp technique, we were unable to prove our a priori primary hypothesis of peripheral insulin resistance in young adult offspring of pregnancies affected by malaria. However, the subtle elevations of plasma glucose might represent an early risk marker for later development of type 2 diabetes if combined with aging and a more obesogenic living environment.
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Affiliation(s)
- Louise G Grunnet
- Clinical Prevention Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Ib C Bygbjerg
- Global Health Section, University of Copenhagen, Copenhagen, Denmark
- Centre for Medical Parasitology, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Theonest K Mutabingwa
- Faculty of Medicine, Hubert Kairuki Memorial University, Dar es Salaam, United Republic of Tanzania
| | | | - Jannie Nielsen
- Global Health Section, University of Copenhagen, Copenhagen, Denmark
- Hubert Department of Gobal Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Christentze Schmiegelow
- Centre for Medical Parasitology, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Allan A Vaag
- Clinical Prevention Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Kaushik Ramaiya
- Shree Hindu Mandal Hospital, Dar es Salaam, United Republic of Tanzania
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15
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Akowuah PK, Hargrave A, Rumbaut RE, Burns AR. Dissociation between Corneal and Cardiometabolic Changes in Response to a Time-Restricted Feeding of a High Fat Diet. Nutrients 2021; 14:139. [PMID: 35011018 PMCID: PMC8746991 DOI: 10.3390/nu14010139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/24/2021] [Accepted: 12/26/2021] [Indexed: 01/26/2023] Open
Abstract
Mice fed a high fat diet (HFD) ab libitum show corneal dysregulation, as evidenced by decreased sensitivity and impaired wound healing. Time-restricted (TR) feeding can effectively mitigate the cardiometabolic effects of an HFD. To determine if TR feeding attenuates HFD-induced corneal dysregulation, this study evaluated 6-week-old C57BL/6 mice fed an ad libitum normal diet (ND), an ad libitum HFD, or a time-restricted (TR) HFD for 10 days. Corneal sensitivity was measured using a Cochet-Bonnet aesthesiometer. A corneal epithelial abrasion wound was created, and wound closure was monitored for 30 h. Neutrophil and platelet recruitment were assessed by immunofluorescence microscopy. TR HFD fed mice gained less weight (p < 0.0001), had less visceral fat (p = 0.015), and had reduced numbers of adipose tissue macrophages and T cells (p < 0.05) compared to ad libitum HFD fed mice. Corneal sensitivity was reduced in ad libitum HFD and TR HFD fed mice compared to ad libitum ND fed mice (p < 0.0001). Following epithelial abrasion, corneal wound closure was delayed (~6 h), and neutrophil and platelet recruitment was dysregulated similarly in ad libitum and TR HFD fed mice. TR HFD feeding appears to mitigate adipose tissue inflammation and adiposity, while the cornea remains sensitive to the pathologic effects of HFD feeding.
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Affiliation(s)
- Prince K. Akowuah
- College of Optometry, University of Houston, Houston, TX 77204, USA; (A.H.); (A.R.B.)
| | - Aubrey Hargrave
- College of Optometry, University of Houston, Houston, TX 77204, USA; (A.H.); (A.R.B.)
| | - Rolando E. Rumbaut
- Children’s Nutrition Research Center, Baylor College of Medicine, Houston, TX 77030, USA;
- Center for Translational Research on Inflammatory Diseases (CTRID), Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX 77030, USA
| | - Alan R. Burns
- College of Optometry, University of Houston, Houston, TX 77204, USA; (A.H.); (A.R.B.)
- Children’s Nutrition Research Center, Baylor College of Medicine, Houston, TX 77030, USA;
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16
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Chellappa SL, Qian J, Vujovic N, Morris CJ, Nedeltcheva A, Nguyen H, Rahman N, Heng SW, Kelly L, Kerlin-Monteiro K, Srivastav S, Wang W, Aeschbach D, Czeisler CA, Shea SA, Adler GK, Garaulet M, Scheer FAJL. Daytime eating prevents internal circadian misalignment and glucose intolerance in night work. SCIENCE ADVANCES 2021; 7:eabg9910. [PMID: 34860550 PMCID: PMC8641939 DOI: 10.1126/sciadv.abg9910] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 10/14/2021] [Indexed: 06/01/2023]
Abstract
Night work increases diabetes risk. Misalignment between the central circadian “clock” and daily behaviors, typical in night workers, impairs glucose tolerance, likely due to internal misalignment between central and peripheral circadian rhythms. Whether appropriate circadian alignment of eating can prevent internal circadian misalignment and glucose intolerance is unknown. In a 14-day circadian paradigm, we assessed glycemic control during simulated night work with either nighttime or daytime eating. Assessment of central (body temperature) and peripheral (glucose and insulin) endogenous circadian rhythms happened during constant routine protocols before and after simulated night work. Nighttime eating led to misalignment between central and peripheral (glucose) endogenous circadian rhythms and impaired glucose tolerance, whereas restricting meals to daytime prevented it. These findings offer a behavioral approach to preventing glucose intolerance in shift workers.
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Affiliation(s)
- Sarah L. Chellappa
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
- Department of Nuclear Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Jingyi Qian
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Nina Vujovic
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Christopher J. Morris
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Arlet Nedeltcheva
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Hoa Nguyen
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
| | - Nishath Rahman
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
| | - Su Wei Heng
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
| | - Lauren Kelly
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
| | - Kayla Kerlin-Monteiro
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
| | - Suhina Srivastav
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
| | - Wei Wang
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Daniel Aeschbach
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
- Department of Sleep and Human Factors Research, Institute of Aerospace Medicine, German Aerospace Center, Cologne, Germany
- Institute of Experimental Epileptology and Cognition Research, Faculty of Medicine, University of Bonn, Bonn, Germany
| | - Charles A. Czeisler
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Steven A. Shea
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR, USA
| | - Gail K. Adler
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Marta Garaulet
- Department of Physiology, Regional Campus of International Excellence, University of Murcia, Murcia, Spain
- Biomedical Research Institute of Murcia, IMIB-Arrixaca-UMU, University Clinical Hospital, Murcia, Spain
| | - Frank A. J. L. Scheer
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
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