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Shao Y, Yu Y, Li C, Yu J, Zong R, Pei C. Synergistic effect of quercetin and 6-gingerol treatment in streptozotocin induced type 2 diabetic rats and poloxamer P-407 induced hyperlipidemia. RSC Adv 2016. [DOI: 10.1039/c5ra16493a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ginger and quercetin have been reported to have significant antidiabetic effects.
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Affiliation(s)
- Yi Shao
- Department of Ophthalmology
- The First Affiliated Hospital of Nanchang University
- Jiangxi Province Clinical Ophthalmology Institute and Oculopathy Research centre
- Nanchang 330006
- China
| | - Yao Yu
- Department of Ophthalmology
- The First Affiliated Hospital of Nanchang University
- Jiangxi Province Clinical Ophthalmology Institute and Oculopathy Research centre
- Nanchang 330006
- China
| | - Cheng Li
- Eye Institute of Xiamen University
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science
- Xiamen 361000
- China
| | - Jing Yu
- Department of Acupuncture and Moxibustion
- Hangzhou TCM Hospital
- Hangzhou 310007
- China
| | - Rongrong Zong
- Eye Institute of Xiamen University
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science
- Xiamen 361000
- China
| | - Chonggang Pei
- Department of Ophthalmology
- The First Affiliated Hospital of Nanchang University
- Jiangxi Province Clinical Ophthalmology Institute and Oculopathy Research centre
- Nanchang 330006
- China
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Gupta D, Thangaraj D, Radhakrishnan M. A novel 5HT3 antagonist 4i (N-(3-chloro-2-methylphenyl)quinoxalin-2-carboxamide) prevents diabetes-induced depressive phenotypes in mice: Modulation of serotonergic system. Behav Brain Res 2015; 297:41-50. [PMID: 26454237 DOI: 10.1016/j.bbr.2015.10.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 10/01/2015] [Accepted: 10/03/2015] [Indexed: 11/16/2022]
Abstract
Despite the presence of a multitudinous pharmacotherapy, diabetes-induced depressive disorder remains undertreated. Evidence suggests that brain serotonergic deficits are associated with depressive-like behavior in diabetes and that 5HT3 receptor (5HT3R) antagonists have serotonergic facilitatory effects. This study examined the effects of a novel 5HT3R antagonist, 4i (N-(3-chloro-2-methylphenyl)quinoxalin-2-carboxamide), in diabetes-induced depressive phenotypes. Experimentally, (1) to evaluate the effects of 4i, mice with 8-weeks of diabetes (induced by streptozotocin, 200mg/kg, i.p.) were treated with vehicle, 4i (0.5 and 1mg/kg/day, i.p.), fluoxetine (10mg/kg/day, i.p.) for 4-weeks and subjected to neurobehavioral assays, followed by biochemical estimation of serotonin levels in midbrain, prefrontal-cortex and cerebellum. (2) To evaluate the role of 5HT3R in the postulated effect of 4i, diabetic mice were given 4i (1mg/kg/day, i.p.) after 1h of 1-(m-chlorophenyl)-biguanide (mCPBG, a 5HT3R agonist, 10mg/kg/day, i.p.) treatment and subjected to the same protocol. The results showed that diabetic mice exhibited a significant behavioral deficit, including depression-like behavior in forced swim test, anxiety-like in open field test and sociability deficits in social interaction test, along with a significant decrease in serotonin level in these brain regions. 4i (1mg/kg), similar to fluoxetine, prevented these behavioral abnormalities and normalized brain serotonin levels. 4i (0.5mg/kg) ameliorated only diabetes-induced depressive-like behavior and serotonin deficits, but not anxiety-like effects. mCPBG blunted 4i-mediated behavioral response and increase in brain serotonin levels. Altogether, this study suggests that 4i prevents diabetes-induced depressive phenotypes in mice, which may involve antagonism of 5HT3Rs and increase in serotonin levels in discrete brain regions.
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Affiliation(s)
- Deepali Gupta
- Department of Pharmacy, Birla Institute of Technology & Science, Pilani, Rajasthan 333031, India.
| | - Devadoss Thangaraj
- KVSR Siddhartha College of Pharmaceutical Sciences, Vijaywada, Andhra Pradesh 520001, India
| | - Mahesh Radhakrishnan
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani, Rajasthan 333031, India
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Castillo-Gómez E, Coviello S, Perez-Rando M, Curto Y, Carceller H, Salvador A, Nacher J. Streptozotocin diabetic mice display depressive-like behavior and alterations in the structure, neurotransmission and plasticity of medial prefrontal cortex interneurons. Brain Res Bull 2015; 116:45-56. [DOI: 10.1016/j.brainresbull.2015.06.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 06/05/2015] [Accepted: 06/10/2015] [Indexed: 12/15/2022]
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Role of 5-HT2 receptors in diabetes: Swertiamarin seco-iridoid glycoside might be a possible 5-HT2 receptor modulator. Physiol Behav 2015; 144:66-72. [DOI: 10.1016/j.physbeh.2015.02.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 01/16/2015] [Accepted: 02/16/2015] [Indexed: 01/23/2023]
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Sturza A, Duicu OM, Vaduva A, Dănilă MD, Noveanu L, Varró A, Muntean DM. Monoamine oxidases are novel sources of cardiovascular oxidative stress in experimental diabetes. Can J Physiol Pharmacol 2015; 93:555-61. [PMID: 25996256 DOI: 10.1139/cjpp-2014-0544] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Diabetes mellitus (DM) is widely recognized as the most severe metabolic disease associated with increased cardiovascular morbidity and mortality. The generation of reactive oxygen species (ROS) is a major event causally linked to the development of cardiovascular complications throughout the evolution of DM. Recently, monoamine oxidases (MAOs) at the outer mitochondrial membrane, with 2 isoforms, MAO-A and MAO-B, have emerged as novel sources of constant hydrogen peroxide (H2O2) production in the cardiovascular system via the oxidative deamination of biogenic amines and neurotransmitters. Whether MAOs are mediators of endothelial dysfunction in DM is unknown, and so we studied this in a streptozotocin-induced rat model of diabetes. MAO expression (mRNA and protein) was increased in both arterial samples and hearts isolated from the diabetic animals. Also, H2O2 production (ferrous oxidation - xylenol orange assay) in aortic samples was significantly increased, together with an impairment of endothelium-dependent relaxation (organ-bath studies). MAO inhibitors (clorgyline and selegiline) attenuated ROS production by 50% and partially normalized the endothelium-dependent relaxation in diseased vessels. In conclusion, MAOs, in particular the MAO-B isoform, are induced in aortas and hearts in the streptozotocin-induced diabetic rat model and contribute, via the generation of H2O2, to the endothelial dysfunction associated with experimental diabetes.
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Affiliation(s)
- Adrian Sturza
- a Department of Pathophysiology, Faculty of Medicine, "Victor Babeş" University of Medicine and Pharmacy, 14, Tudor Vladimirescu st., 300173 Timişoara, Romania.,c Center for Translational Research and Systems Medicine, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania
| | - Oana M Duicu
- a Department of Pathophysiology, Faculty of Medicine, "Victor Babeş" University of Medicine and Pharmacy, 14, Tudor Vladimirescu st., 300173 Timişoara, Romania.,c Center for Translational Research and Systems Medicine, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania
| | - Adrian Vaduva
- b Department of Morphopathology, Faculty of Medicine, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania
| | - Maria D Dănilă
- a Department of Pathophysiology, Faculty of Medicine, "Victor Babeş" University of Medicine and Pharmacy, 14, Tudor Vladimirescu st., 300173 Timişoara, Romania.,c Center for Translational Research and Systems Medicine, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania
| | - Lavinia Noveanu
- a Department of Pathophysiology, Faculty of Medicine, "Victor Babeş" University of Medicine and Pharmacy, 14, Tudor Vladimirescu st., 300173 Timişoara, Romania.,c Center for Translational Research and Systems Medicine, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania
| | - András Varró
- d Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Danina M Muntean
- a Department of Pathophysiology, Faculty of Medicine, "Victor Babeş" University of Medicine and Pharmacy, 14, Tudor Vladimirescu st., 300173 Timişoara, Romania.,c Center for Translational Research and Systems Medicine, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania
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Dhanda S, Sandhir R. Role of dopaminergic and serotonergic neurotransmitters in behavioral alterations observed in rodent model of hepatic encephalopathy. Behav Brain Res 2015; 286:222-35. [PMID: 25639545 DOI: 10.1016/j.bbr.2015.01.042] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 01/17/2015] [Accepted: 01/22/2015] [Indexed: 02/06/2023]
Abstract
The present study was designed to evaluate the role of biogenic amines in behavioral alterations observed in rat model of hepatic encephalopathy (HE) following bile duct ligation (BDL). Male Wistar rats subjected to BDL developed biliary fibrosis after four weeks which was supported by altered liver function tests, increased ammonia levels and histological staining (Sirius red). Animals were assessed for their behavioral performance in terms of cognitive, anxiety and motor functions. The levels of dopamine (DA), serotonin (5-HT), epinephrine and norepinephrine (NE) were estimated in different regions of brain viz. cortex, hippocampus, striatum and cerebellum using HPLC along with activity of monoamine oxidase (MAO). Cognitive assessment of BDL rats revealed a progressive decline in learning, memory formation, retrieval, exploration of novel environment and spontaneous locomotor activity along with decrease in 5-HT and NE levels. This was accompanied by an increase in MAO activity. Motor functions of BDL rats were also altered which were evident from decrease in the time spent on the rotating rod and higher foot faults assessed using narrow beam walk task. A global decrease was observed in the DA content along with an increase in MAO activity. Histopathological studies using hematoxylin-eosin (H&E) and cresyl violet exhibited marked neuronal degeneration, wherein neurons appeared more pyknotic, condensed and damaged. The results reveal that dopaminergic and serotonergic pathways are disturbed in chronic liver failure post-BDL which may be responsible for behavioral impairments observed in HE.
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Affiliation(s)
- Saurabh Dhanda
- Department of Biochemistry, Basic Medical Science Block, Panjab University, Chandigarh 160014, India
| | - Rajat Sandhir
- Department of Biochemistry, Basic Medical Science Block, Panjab University, Chandigarh 160014, India.
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Santos D, Colle D, Moreira E, Peres K, Ribeiro R, dos Santos A, de Oliveira J, Hort M, de Bem A, Farina M. Probucol mitigates streptozotocin-induced cognitive and biochemical changes in mice. Neuroscience 2015; 284:590-600. [DOI: 10.1016/j.neuroscience.2014.10.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 10/06/2014] [Accepted: 10/09/2014] [Indexed: 10/24/2022]
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El-Marasy SA, Abdallah HM, El-Shenawy SM, El-Khatib AS, El-Shabrawy OA, Kenawy SA. Anti-depressant effect of hesperidin in diabetic rats. Can J Physiol Pharmacol 2014; 92:945-52. [DOI: 10.1139/cjpp-2014-0281] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This study aimed to investigate the anti-depressant effect of hesperidin (Hsp) in streptozotocin (STZ)-induced diabetic rats. Additionally, the effect of Hsp on hyperglycaemia, oxidative stress, inflammation, brain-derived neurotrophic factor (BDNF), and brain monoamines in diabetic rats was also assessed. The Wistar rats in the experimental groups were rendered hyperglycaemic with a single dose of STZ (52.5 mg·(kg body mass)−1, by intraperitoneal injection). The normal group received the vehicle only. Hyperglycaemic rats were treated with Hsp (25.0, 50.0, or 100.0 mg·(kg body mass)−1·day−1, per oral) and fluoxetine (Flu) (5.0 mg·(kg body mass)−1·day−1, per oral) 48 h after the STZ injection, for 21 consecutive days. The normal and STZ control groups received the vehicle (distilled water). Behavioral and biochemical parameters were then assessed. When Hsp was administered to the STZ-treated rats, this reversed the STZ-induced increase in immobility duration in the forced swimming test (FST) and attenuated hyperglycaemia, decreased malondialdehyde (MDA), increased reduced glutathione (GSH) decreased interleukin-6 (IL-6), and increased BDNF levels in the brain. Treatment with Hsp attenuated STZ-induced neurochemical alterations, as indicated by increased levels of monoamines in the brain, namely, norepinephrine (NE), dopamine (DA), and serotonin (5-hydroxytryptamine; 5-HT). All of these effects of Hsp were similar to those observed with the established anti-depressant Flu. This study shows that Hsp exerted anti-depressant effect in diabetic rats, which may have been partly mediated by its amelioration of hyperglycaemia as well as its anti-oxidant and anti-inflammatory activities, the enhancement of neurogenesis, and changes in the levels of monoamines in the brain.
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Affiliation(s)
- Salma A. El-Marasy
- Department of Pharmacology, National Research Centre, 12622 Cairo, Egypt
| | - Heba M.I. Abdallah
- Department of Pharmacology, National Research Centre, 12622 Cairo, Egypt
| | | | - Aiman S. El-Khatib
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | | | - Sanaa A. Kenawy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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Ye X, Qi J, Wu Y, Yu D, Xu P, Li S, Zhu S, Wu Q, Ren G, Li D. Comparison of PEGylated FGF-21 with insulin glargine for long-lasting hypoglycaemic effect in db/db mice. DIABETES & METABOLISM 2014; 41:82-90. [PMID: 25451186 DOI: 10.1016/j.diabet.2014.09.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 08/28/2014] [Accepted: 09/11/2014] [Indexed: 11/25/2022]
Abstract
AIM This study investigated the long-acting antidiabetic efficacy of PEGylated fibroblast growth factor (FGF)-21 in type 2 diabetic db/db mice. METHODS PEGylated FGF-21 was prepared by modifying the N-terminus of human FGF-21 (hFGF-21) using mPEG-ALD. To compare the long-lasting hypoglycaemic effects of PEGylated FGF-21 and insulin glargine in diabetic db/db mice, their pharmacological efficacy was evaluated by changes in blood glucose levels, body weight, insulin levels, glycosylated haemoglobin levels, lipid profile and liver function parameters, and by oral glucose tolerance tests (OGTTs). RESULTS Both PEGylated FGF-21 and insulin glargine decreased plasma glucose in db/db mice. However, compared with insulin glargine treatment, PEGylated FGF-21 therapy had more significant effects in lowering blood glucose and glycosylated haemoglobin levels, improving lipid profile and liver function parameters, alleviating insulin resistance and reducing the glucose area under the curve in OGTTs. CONCLUSION Our results suggest that PEGylated FGF-21 is an ideal candidate as a long-acting antidiabetes drug, and holds significant promise as an effective therapeutic agent in the treatment of type 2 diabetes patients.
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Affiliation(s)
- X Ye
- Biopharmaceutical Lab, College of Life Science, Northeast Agricultural University, 150030 Harbin, China
| | - J Qi
- Biopharmaceutical Lab, College of Life Science, Northeast Agricultural University, 150030 Harbin, China
| | - Y Wu
- Biopharmaceutical Lab, College of Life Science, Northeast Agricultural University, 150030 Harbin, China
| | - D Yu
- Biopharmaceutical Lab, College of Life Science, Northeast Agricultural University, 150030 Harbin, China
| | - P Xu
- Biopharmaceutical Lab, College of Life Science, Northeast Agricultural University, 150030 Harbin, China
| | - S Li
- Biopharmaceutical Lab, College of Life Science, Northeast Agricultural University, 150030 Harbin, China
| | - S Zhu
- School of Food Science and Technology, Jiangnan University, State Key Laboratory of Food Science and Technology, Wuxi, China
| | - Q Wu
- Biopharmaceutical Lab, College of Life Science, Northeast Agricultural University, 150030 Harbin, China
| | - G Ren
- Biopharmaceutical Lab, College of Life Science, Northeast Agricultural University, 150030 Harbin, China
| | - D Li
- Biopharmaceutical Lab, College of Life Science, Northeast Agricultural University, 150030 Harbin, China; Key Laboratory of Agricultural Biological Functional Gene, Northeast Agricultural University, Harbin, China.
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60
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Abstract
Insulin receptors, as well as IGF-1 receptors and their postreceptor signaling partners, are distributed throughout the brain. Insulin acts on these receptors to modulate peripheral metabolism, including regulation of appetite, reproductive function, body temperature, white fat mass, hepatic glucose output, and response to hypoglycemia. Insulin signaling also modulates neurotransmitter channel activity, brain cholesterol synthesis, and mitochondrial function. Disruption of insulin action in the brain leads to impairment of neuronal function and synaptogenesis. In addition, insulin signaling modulates phosphorylation of tau protein, an early component in the development of Alzheimer disease. Thus, alterations in insulin action in the brain can contribute to metabolic syndrome, and the development of mood disorders and neurodegenerative diseases.
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Affiliation(s)
- André Kleinridders
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
| | - Heather A Ferris
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
| | - Weikang Cai
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
| | - C Ronald Kahn
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA
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