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Canet G, Gratuze M, Zussy C, Bouali ML, Diaz SD, Rocaboy E, Laliberté F, El Khoury NB, Tremblay C, Morin F, Calon F, Hébert SS, Julien C, Planel E. Age-dependent impact of streptozotocin on metabolic endpoints and Alzheimer's disease pathologies in 3xTg-AD mice. Neurobiol Dis 2024; 198:106526. [PMID: 38734152 DOI: 10.1016/j.nbd.2024.106526] [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: 03/26/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/13/2024] Open
Abstract
Alzheimer's disease (AD) is a multifactorial neurodegenerative disease with a complex origin, thought to involve a combination of genetic, biological and environmental factors. Insulin dysfunction has emerged as a potential factor contributing to AD pathogenesis, particularly in individuals with diabetes, and among those with insulin deficiency or undergoing insulin therapy. The intraperitoneal administration of streptozotocin (STZ) is widely used in rodent models to explore the impact of insulin deficiency on AD pathology, although prior research predominantly focused on young animals, with no comparative analysis across different age groups. Our study aimed to fill this gap by analyzing the impact of insulin dysfunction in 7 and 23 months 3xTg-AD mice, that exhibit both amyloid and tau pathologies. Our objective was to elucidate the age-specific consequences of insulin deficiency on AD pathology. STZ administration led to insulin deficiency in the younger mice, resulting in an increase in cortical amyloid-β (Aβ) and tau aggregation, while tau phosphorylation was not significantly affected. Conversely, older mice displayed an unexpected resilience to the peripheral metabolic impact of STZ, while exhibiting an increase in both tau phosphorylation and aggregation without significantly affecting amyloid pathology. These changes were paralleled with alterations in signaling pathways involving tau kinases and phosphatases. Several markers of blood-brain barrier (BBB) integrity declined with age in 3xTg-AD mice, which might have facilitated a direct neurotoxic effect of STZ in older mice. Overall, our research confirms the influence of insulin signaling dysfunction on AD pathology, but also advises careful interpretation of data related to STZ-induced effects in older animals.
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Affiliation(s)
- Geoffrey Canet
- Laval University, Faculty of Medicine, Neurosciences and Psychiatry department, Québec, QC G1V 0A6, Canada; Neurosciences axis, CHU de Québec Research Center, Québec, QC G1V 4G2, Canada.
| | - Maud Gratuze
- Laval University, Faculty of Medicine, Neurosciences and Psychiatry department, Québec, QC G1V 0A6, Canada; Institute of Neurophysiopathology (INP), University of Aix-Marseille, CNRS UMR 7051, 13385 Marseille, France.
| | - Charleine Zussy
- Laval University, Faculty of Medicine, Neurosciences and Psychiatry department, Québec, QC G1V 0A6, Canada; Neurosciences axis, CHU de Québec Research Center, Québec, QC G1V 4G2, Canada.
| | - Mohamed Lala Bouali
- Laval University, Faculty of Medicine, Neurosciences and Psychiatry department, Québec, QC G1V 0A6, Canada.
| | - Sofia Diego Diaz
- Laval University, Faculty of Medicine, Neurosciences and Psychiatry department, Québec, QC G1V 0A6, Canada.
| | - Emma Rocaboy
- Laval University, Faculty of Medicine, Neurosciences and Psychiatry department, Québec, QC G1V 0A6, Canada.
| | - Francis Laliberté
- Neurosciences axis, CHU de Québec Research Center, Québec, QC G1V 4G2, Canada
| | - Noura B El Khoury
- Laval University, Faculty of Medicine, Neurosciences and Psychiatry department, Québec, QC G1V 0A6, Canada; University of Balamand, Faculty of Arts and Sciences, Departement of Psychology, Tueini Building Kalhat, Al-Kurah, P.O. Box 100, Tripoli, Lebanon.
| | - Cyntia Tremblay
- Neurosciences axis, CHU de Québec Research Center, Québec, QC G1V 4G2, Canada.
| | - Françoise Morin
- Neurosciences axis, CHU de Québec Research Center, Québec, QC G1V 4G2, Canada.
| | - Frédéric Calon
- Neurosciences axis, CHU de Québec Research Center, Québec, QC G1V 4G2, Canada; Laval University, Faculty of Pharmacy, Neurosciences and Psychiatry department, Québec, QC G1V 0A6, Canada.
| | - Sébastien S Hébert
- Laval University, Faculty of Medicine, Neurosciences and Psychiatry department, Québec, QC G1V 0A6, Canada; Neurosciences axis, CHU de Québec Research Center, Québec, QC G1V 4G2, Canada.
| | - Carl Julien
- Research Center in Animal Sciences of Deschambault, Québec, QC G0A 1S0, Canada; Laval University, Faculty of Agricultural and Food Sciences, Québec, QC G1V 0A6, Canada.
| | - Emmanuel Planel
- Laval University, Faculty of Medicine, Neurosciences and Psychiatry department, Québec, QC G1V 0A6, Canada; Neurosciences axis, CHU de Québec Research Center, Québec, QC G1V 4G2, Canada.
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Silva-Reis R, Faustino-Rocha AI, Silva J, Valada A, Azevedo T, Anjos L, Gonçalves L, Pinto MDL, Ferreira R, Silva AMS, Cardoso SM, Oliveira PA. Studying and Analyzing Humane Endpoints in the Fructose-Fed and Streptozotocin-Injected Rat Model of Diabetes. Animals (Basel) 2023; 13:ani13081397. [PMID: 37106960 PMCID: PMC10135389 DOI: 10.3390/ani13081397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/10/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023] Open
Abstract
This work aimed to define a humane endpoint scoring system able to objectively identify signs of animal suffering in a rat model of type 2 diabetes. Sprague-Dawley male rats were divided into control and induced group. The induced animals drink a 10% fructose solution for 14 days. Then, received an administration of streptozotocin (40 mg/kg). Animals' body weight, water and food consumption were recorded weekly. To evaluate animal welfare, a score sheet with 14 parameters was employed. Blood glucose levels were measured at three time points. After seven weeks of initiating the protocol, the rats were euthanized. The induced animals showed weight loss, polyuria, polyphagia, and polydipsia. According to our humane endpoints table, changes in animal welfare became noticeable after the STZ administration. None of the animals hit the critical score limit (four). Data showed that the most effective parameters to assess welfare in this type 2 diabetes rat induction model were dehydration, grooming, posture, abdominal visualization, and stool appearance. The glycemia was significantly higher in the induced group when compared to the controls (p < 0.01). Induced animals' murinometric and nutritional parameters were significantly lower than the controls (p < 0.01). Our findings suggest that in this rat model of type 2 diabetes with STZ-induced following fructose consumption, our list of humane endpoints is suitable for monitoring the animals' welfare.
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Affiliation(s)
- Rita Silva-Reis
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- CITAB Inov4Agro-Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-Os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Ana I Faustino-Rocha
- CITAB Inov4Agro-Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-Os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Department of Zootechnics, School of Sciences and Technology, University of Évora, 7000-812 Évora, Portugal
- Comprehensive Health Research Center, 7000-812 Évora, Portugal
| | - Jéssica Silva
- CITAB Inov4Agro-Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-Os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Abigaël Valada
- CITAB Inov4Agro-Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-Os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Tiago Azevedo
- CITAB Inov4Agro-Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-Os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Lara Anjos
- CITAB Inov4Agro-Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-Os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Lio Gonçalves
- Engineering Department, University of Trás-Os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Institute for Systems and Computer Engineering, Technology and Science, 4200-465 Porto, Portugal
| | - Maria de Lurdes Pinto
- Animal and Veterinary Research Center (CECAV), University of Trás-Os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Department of Veterinary Sciences, University of Trás-Os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Rita Ferreira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Artur M S Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Susana M Cardoso
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Paula A Oliveira
- CITAB Inov4Agro-Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-Os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Department of Veterinary Sciences, University of Trás-Os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
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Type I Diabetes Pathoetiology and Pathophysiology: Roles of the Gut Microbiome, Pancreatic Cellular Interactions, and the 'Bystander' Activation of Memory CD8 + T Cells. Int J Mol Sci 2023; 24:ijms24043300. [PMID: 36834709 PMCID: PMC9964837 DOI: 10.3390/ijms24043300] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 02/10/2023] Open
Abstract
Type 1 diabetes mellitus (T1DM) arises from the failure of pancreatic β-cells to produce adequate insulin, usually as a consequence of extensive pancreatic β-cell destruction. T1DM is classed as an immune-mediated condition. However, the processes that drive pancreatic β-cell apoptosis remain to be determined, resulting in a failure to prevent ongoing cellular destruction. Alteration in mitochondrial function is clearly the major pathophysiological process underpinning pancreatic β-cell loss in T1DM. As with many medical conditions, there is a growing interest in T1DM as to the role of the gut microbiome, including the interactions of gut bacteria with Candida albicans fungal infection. Gut dysbiosis and gut permeability are intimately associated with raised levels of circulating lipopolysaccharide and suppressed butyrate levels, which can act to dysregulate immune responses and systemic mitochondrial function. This manuscript reviews broad bodies of data on T1DM pathophysiology, highlighting the importance of alterations in the mitochondrial melatonergic pathway of pancreatic β-cells in driving mitochondrial dysfunction. The suppression of mitochondrial melatonin makes pancreatic β-cells susceptible to oxidative stress and dysfunctional mitophagy, partly mediated by the loss of melatonin's induction of PTEN-induced kinase 1 (PINK1), thereby suppressing mitophagy and increasing autoimmune associated major histocompatibility complex (MHC)-1. The immediate precursor to melatonin, N-acetylserotonin (NAS), is a brain-derived neurotrophic factor (BDNF) mimic, via the activation of the BDNF receptor, TrkB. As both the full-length and truncated TrkB play powerful roles in pancreatic β-cell function and survival, NAS is another important aspect of the melatonergic pathway relevant to pancreatic β-cell destruction in T1DM. The incorporation of the mitochondrial melatonergic pathway in T1DM pathophysiology integrates wide bodies of previously disparate data on pancreatic intercellular processes. The suppression of Akkermansia muciniphila, Lactobacillus johnsonii, butyrate, and the shikimate pathway-including by bacteriophages-contributes to not only pancreatic β-cell apoptosis, but also to the bystander activation of CD8+ T cells, which increases their effector function and prevents their deselection in the thymus. The gut microbiome is therefore a significant determinant of the mitochondrial dysfunction driving pancreatic β-cell loss as well as 'autoimmune' effects derived from cytotoxic CD8+ T cells. This has significant future research and treatment implications.
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Dissi M, Ibrahim S, Tanko Y, Mohammed A. Models of modern-day circadian rhythm disruption and their diabetogenic potentials in adult male Wistar rats. SAUDI JOURNAL FOR HEALTH SCIENCES 2020. [DOI: 10.4103/sjhs.sjhs_69_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Duan X, Qin G. Notch inhibitor mitigates renal ischemia‑reperfusion injury in diabetic rats. Mol Med Rep 2019; 21:583-588. [PMID: 31974606 PMCID: PMC6947829 DOI: 10.3892/mmr.2019.10857] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 09/26/2019] [Indexed: 12/21/2022] Open
Abstract
Diabetes mellitus can exacerbate renal ischemia-reperfusion (I/R) injury (RI/RI) in diabetic rats. Previous studies have shown that Notch signaling is involved in renal disorders. The aim of the present study was to evaluate the protective effect of the Notch inhibitor γ-secretase N-[N-(3,5-difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester (DAPT) on RI/RI in a streptozocin (STZ)-induced diabetic rat model. STZ-induced diabetic rats were randomly grouped for different treatments. Cisplatin was used to trigger the Notch signaling pathway and the animals were preconditioned with DAPT to block the signaling pathway. Renal function, oxidative stress and inflammatory factors were examined. DAPT-treated diabetic rats demonstrated mitigated renal injury and function, antioxidative activity was significantly improved and HIF-1a was upregulated. Notch inhibitor DAPT is a potential therapeutic target to improve the outcome of RI/RI in STZ-induced diabetic rats in part via the regulation of anti-oxidation and HIF-1a.
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Affiliation(s)
- Xiaokai Duan
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Guijun Qin
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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Barone MTU, Gonçalves B, Menna-Barreto L. Peripheral body temperature impairment in individuals with type 1 diabetes mellitus. Sleep Sci 2018; 11:137-140. [PMID: 30455844 PMCID: PMC6201516 DOI: 10.5935/1984-0063.20180026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 07/24/2018] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE The aim of the present study was to evaluate the peripheral temperature rhythmicity and control in individuals with type 1 diabetes mellitus. METHODS Twelve non-obese adults (20-40 years old) with type 1 diabetes mellitus (T1D) and eight control individuals, matched for age and BMI, wore a wrist temperature recorder for 10 consecutive days. Recorded data were aggregated to calculate M10 (ten hours of highest temperature) and L5 (five hours of lowest temperature) of wrist temperature values for both groups. RESULTS Mean wrist temperature and M10 were not different when comparing the groups. The wrist temperature amplitude was reduced in the T1D group (p=0.039), due to a higher L5 (p=0.038). DISCUSSION While the higher L5 observed in T1D could be explained by less efficient heat dissipation, the amplitude flattening coincides with that observed in elderly.
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Affiliation(s)
- Mark Thomaz Ugliara Barone
- Escola de Artes, Ciências e Humanidades da Universidade de
São Paulo, Grupo Multidisciplinar de Desenvolvimento e Ritmos
Biológicos (GMDRB) - São Paulo - SP - Brazil
- ADJ Diabetes Brasil, Research and Education - São Paulo - SP
- Brazil
| | - Bruno Gonçalves
- Escola de Artes, Ciências e Humanidades da Universidade de
São Paulo, Grupo Multidisciplinar de Desenvolvimento e Ritmos
Biológicos (GMDRB) - São Paulo - SP - Brazil
| | - Luiz Menna-Barreto
- Escola de Artes, Ciências e Humanidades da Universidade de
São Paulo, Grupo Multidisciplinar de Desenvolvimento e Ritmos
Biológicos (GMDRB) - São Paulo - SP - Brazil
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Dokumacioglu E, Iskender H, Sen TM, Ince I, Dokumacioglu A, Kanbay Y, Erbas E, Saral S. The Effects of Hesperidin and Quercetin on Serum Tumor Necrosis Factor-Alpha and Interleukin-6 Levels in Streptozotocin-induced Diabetes Model. Pharmacogn Mag 2018; 14:167-173. [PMID: 29720826 PMCID: PMC5909310 DOI: 10.4103/pm.pm_41_17] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/06/2017] [Indexed: 12/12/2022] Open
Abstract
Background: Diabetes mellitus (DM) is a metabolic disorder that occurs as a result of absolute or relative insufficiency of insulin release and/or insulin effect due to impairment of carbohydrate, fat and protein metabolism, and it is characterized by hyperglycemia and leads to various complications. Objective: In this study, it was aimed to investigate the effects of hesperidin (HP) and quercetin, which are natural flavonoids, on serum malondialdehyde (MDA), glutathione (GSH), tumor necrosis factor alpha (TNF-α), and interleukin-6 (IL-6) levels in rats with streptozotocin (STZ)-induced diabetes. Materials and Methods: The experimental animals were divided into four groups, each group comprising ten rats designated as follows: Group 1 served as control rats (C); Group 2 served as diabetic rats (DM); Group 3 served as diabetic rats administered HP (DM + HP) (100 mg/kg b. w.); and Group 4 served as diabetic rats administered quercetin (DM + Q) (100 mg/kg b. w.). Results: Serum MDA and GSH levels were significantly higher in STZ-induced DM group than control group (P < 0.05). In DM + HP and DM + Q groups, MDA levels were significantly decreased compared to DM groups (P < 0.05), but there was no significant difference GSH levels between DM, DM + HP, and DM + Q groups (P > 0.05). TNF-α levels in STZ-induced DM group were significantly decreased compared to control group (P < 0.05), and groups of DM + HP and DM + Q had higher serum TNF-α levels than STZ-induced DM group (P < 0.05). In STZ-induced DM group, serum IL-6 levels were decreased compared to control group (P < 0.05). Conclusion: As a result, in this study, we determined that HP and quercetin may play an effective role in regulating insulin metabolism metabolism in diabetes. However, considering the incompatibility of various results in the literature as well as our own results, we think that the actual role of cytokines in the pathogenesis of diabetes is one of the issues that need to be clarified in further studies. SUMMARY Hesperidin (HP) and quercetin reduced the insulin, total cholesterol, triglyceride, low-density lipoprotein cholesterol, and malondialdehyde (MDA) serum levels and raised the glutathione (GSH) levels compared to diabetes mellitus (DM) group SZT-induced DM increased the MDA serum levels and decreased the GSH levels compared to control group HP and quercetin-treated rats showed higher interleukin-6 and tumor necrosis factor alpha cytokine levels than DM group HP and quercetin may play an effective role in regulating insulin metabolism in diabetes.
Abbreviations used: DM: Diabetes mellitus, MDA: Malondialdehyde, GSH: Glutathione; IL-6: Interleukin-6, TNF-α: Tumor necrosis factor alpha, HP: Hesperidin, Q; Quercetin, STZ: Streptozotocin, TC: Total cholesterol, TG: Triglyceride, HDL-C: High density lipoprotein cholesterol, LDL-C: Low density lipoprotein cholesterol, VLDL-C: Very-low-density lipoprotein cholesterol.
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Affiliation(s)
- Eda Dokumacioglu
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Artvin Coruh University, Artvin 08000, Turkey
| | - Hatice Iskender
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Artvin Coruh University, Artvin 08000, Turkey
| | - Tugba Mazlum Sen
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Teknik University, Trabzon 61000, Turkey
| | - Imran Ince
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Teknik University, Trabzon 61000, Turkey
| | - Ali Dokumacioglu
- Department of Medical Biochemistry, Hopa Government Hospital, Artvin 08000, Turkey
| | - Yalcin Kanbay
- Department of Nursing, Faculty of Health Sciences, Artvin Coruh University, Artvin 08000, Turkey
| | - Elif Erbas
- Department of Histology and Embryology, Faculty of Veterinary, Ataturk University, Erzurum 25000, Turkey
| | - Sinan Saral
- Department of Physiology, Faculty of Medical School, Recep Tayyip Erdogan University, Rize 53000, Turkey
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Gubin DG, Nelaeva AA, Uzhakova AE, Hasanova YV, Cornelissen G, Weinert D. Disrupted circadian rhythms of body temperature, heart rate and fasting blood glucose in prediabetes and type 2 diabetes mellitus. Chronobiol Int 2017; 34:1136-1148. [PMID: 28759269 DOI: 10.1080/07420528.2017.1347670] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We report a progressive disruption of 24-h rhythms in fasting blood glucose (FBG), body temperature (BT) and heart rate (HR) associated with metabolic dysfunction and the development of prediabetes (PD) and type 2 diabetes mellitus (T2DM) in overweight middle-aged (40-69 years old) humans. Increasing BT and HR mean values and declining 24-h BT and HR amplitudes accompany adverse changes in metabolic state. Increased nocturnal BT and a phase delay of the 24-h BT rhythm, deviant 24-h HR profile and a phase advance of the 24-h HR and FBG rhythms are early signs of the PD metabolic state. In T2DM, the 24-h FBG rhythm is no longer detectable, and the 24-h amplitudes of BT and HR are greatly diminished. In addition, lepton and creatinine values were lowered in T2DM. Moreover, positive correlations between FBG and body mass index, BMI, and negative correlations between the 24-h amplitude of FBG and BMI indicate that overweight is an additional factor causing disruption of the circadian rhythms. Further studies on circadian disruption as a consequence of metabolic dysfunction are necessary. The quantitative analysis of changing circadian BT and HR rhythms may provide prognostic markers of T2DM and therapeutic targets for its prevention and correction.
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Affiliation(s)
- D G Gubin
- a Department of Biology , Medical University , Tyumen , Russia
| | - A A Nelaeva
- b Department of Endocrinology , Medical University , Tyumen , Russia
| | - A E Uzhakova
- b Department of Endocrinology , Medical University , Tyumen , Russia
| | - Y V Hasanova
- b Department of Endocrinology , Medical University , Tyumen , Russia
| | - G Cornelissen
- c Halberg Chronobiology Center , University of Minnesota , Minneapolis , MN , USA
| | - D Weinert
- d Institute of Biology/Zoology , Martin Luther University , Halle-Wittenberg , Germany
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Iskender H, Dokumacioglu E, Sen TM, Ince I, Kanbay Y, Saral S. The effect of hesperidin and quercetin on oxidative stress, NF-κB and SIRT1 levels in a STZ-induced experimental diabetes model. Biomed Pharmacother 2017; 90:500-508. [PMID: 28395272 DOI: 10.1016/j.biopha.2017.03.102] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE The aim of this study is to investigate the roles of SIRT1 and NF-κB in the pathogenesis of diabetes mellitus in rats with STZ-induced diabetes and determine the effects of hesperidin and quercetin on oxidative stress and on the levels of SIRT1 and NF-κB. MATERIALS AND METHODS The experimental animals were divided into four groups, each group comprising ten rats designated as follows: group 1 served as control rats (C); group 2 served as diabetic rats (DM); group 3 served as diabetic rats administered hesperidin (DM+HSP) (100mg/kg b.w.) in aqueous suspension orally for 15 days; and group 4 served as diabetic rats administered quercetin (DM+Q) (100mg/kg b.w.) in aqueous suspension orally for 15 days. RESULTS In diabetic group, liver and kidney SIRT1, SOD and CAT activities were significantly lower than control group (p<0.05). Hesperidin and quercetin caused significant increase in the SIRT1, SOD and CAT activities of both DM+HP and DM+Q groups kidney tissues compared to DM group (p<0.05). Liver SOD activies were not found to differ significantly between DM, DM+Q and DM+HP groups (p>0.05). In DM+HP group, liver CAT activities were significantly higher than DM (p<0.05), but there was no significant difference in liver CAT activities between DM and DM+Q (p>0.05). In diabetic group, liver and kidney NF-κB and MDA levels were increased compared to control group (p<0.05), and groups of DM+HP and DM+Q had lower NF-κB and MDA levels than diabetic group (p<0.05). CONCLUSION As a conclusion, based on the results we obtained from this study and the literature data discussed above, we determined in STZ-induced diabetic rats that, increased glucose levels and liver and kidney damage markers decreased significantly after administration of hesperedin and quercetin, and that oxidative stress and NF-κB levels increased while SIRT1 levels decreased in the diabetic group.
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Affiliation(s)
- Hatice Iskender
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Artvin Coruh University, Artvin 08000, Turkey.
| | - Eda Dokumacioglu
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Artvin Coruh University, Artvin 08000, Turkey.
| | - Tugba Mazlum Sen
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Teknik University, Trabzon 61000, Turkey.
| | - Imran Ince
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Teknik University, Trabzon 61000, Turkey.
| | - Yalcin Kanbay
- Department of Nursing, Faculty of Health Sciences, Artvin Coruh University, Artvin 08000, Turkey.
| | - Sinan Saral
- Guneysu Vocational School of Physical Therapy and Rehabilitation, Recep Tayyip Erdogan University, Rize 53000, Turkey.
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Song F, Xue Y, Dong D, Liu J, Fu T, Xiao C, Wang H, Lin C, Liu P, Zhong J, Yang Y, Wang Z, Pan H, Chen J, Li Y, Cai D, Li Z. Insulin Restores an Altered Corneal Epithelium Circadian Rhythm in Mice with Streptozotocin-induced Type 1 Diabetes. Sci Rep 2016; 6:32871. [PMID: 27611469 PMCID: PMC5017193 DOI: 10.1038/srep32871] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 08/16/2016] [Indexed: 12/21/2022] Open
Abstract
The mechanisms of corneal epithelial lesions and delayed wound repair, as well as their association with diabetes mellitus, are critical issues for clinical ophthalmologists. To test whether the diabetic condition alters the circadian rhythm in a mouse cornea and whether insulin can synchronise the corneal clock, we studied the effects of streptozotocin-induced diabetes on the mitosis of epithelial cells, the recruitment of leukocytes to the cornea, and the expression of main core clock genes (Clock, Bmal1, Per2, Cry1, and Rev-erbα) in the corneal epithelium. We also assessed the possible effect of insulin on these modifications. Diabetes downregulated Clock, Bmal1, and Per2 expression, upregulated Cry1 and Rev-erbα expression, reduced corneal epithelial mitosis, and increased leukocyte (neutrophils and γδ T-cells) recruitment to the cornea. Early treatments with insulin partially restored the altered rhythmicity in the diabetic cornea. In conclusion, insulin-dependent diabetes altered the normal rhythmicity of the cornea, and insulin administration had a beneficial effect on restoring normal rhythmicity in the diabetic cornea.
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Affiliation(s)
- Fang Song
- Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou 510632, P.R. China
| | - Yunxia Xue
- International Ocular Surface Research Centre and Institute of Ophthalmology, Jinan University Medical School, Guangzhou 510632, P.R. China
| | - Dong Dong
- International Ocular Surface Research Centre and Institute of Ophthalmology, Jinan University Medical School, Guangzhou 510632, P.R. China
| | - Jun Liu
- International Ocular Surface Research Centre and Institute of Ophthalmology, Jinan University Medical School, Guangzhou 510632, P.R. China
| | - Ting Fu
- International Ocular Surface Research Centre and Institute of Ophthalmology, Jinan University Medical School, Guangzhou 510632, P.R. China
| | - Chengju Xiao
- Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou 510632, P.R. China
| | - Hanqing Wang
- Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou 510632, P.R. China
| | - Cuipei Lin
- International Ocular Surface Research Centre and Institute of Ophthalmology, Jinan University Medical School, Guangzhou 510632, P.R. China
| | - Peng Liu
- Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou 510632, P.R. China
| | - Jiajun Zhong
- Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou 510632, P.R. China
| | - Yabing Yang
- Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou 510632, P.R. China
| | - Zhaorui Wang
- Department of Medical Images, The Third People's Hospital, Puyang, China
| | - Hongwei Pan
- International Ocular Surface Research Centre and Institute of Ophthalmology, Jinan University Medical School, Guangzhou 510632, P.R. China
| | - Jiansu Chen
- International Ocular Surface Research Centre and Institute of Ophthalmology, Jinan University Medical School, Guangzhou 510632, P.R. China
| | - Yangqiu Li
- Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou 510632, P.R. China
| | - Dongqing Cai
- Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou 510632, P.R. China
| | - Zhijie Li
- Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou 510632, P.R. China.,International Ocular Surface Research Centre and Institute of Ophthalmology, Jinan University Medical School, Guangzhou 510632, P.R. China.,Section of Leukocyte Biology, Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas, USA
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