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Karempudi VK, Gokul TA, Ramesh Kumar K, Veeramanikandan V, Ali D, Impellitteri F, Faggio C, Ullah H, Daglia M, Balaji P. Protective role of Pleurotus florida against streptozotocin-induced hyperglycemia in rats: A preclinical study. Biomed Pharmacother 2024; 170:116005. [PMID: 38086150 DOI: 10.1016/j.biopha.2023.116005] [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: 10/03/2023] [Revised: 12/03/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024] Open
Abstract
Pleurotus florida (Mont.) Singer is a mushroom species known to be an antioxidant, immunomodulatory, and diuretic agent, reducing blood pressure and cholesterol. The aim of this study was to evaluate the in vivo potency of P. florida's anti-diabetic properties in rats affected by hyperglycemia induced by Streptozotocin (STZ) at 55 mg/kg (i.p.), characterized by oxidative stress impairment, and changes in insulin levels and lipid profile. After inducing hyperglycemia in the rats, they were treated with P. florida acetone and methanol extracts, orally administered for 28 days at doses of 200 mg/kg and 400 mg/kg body weight. The hyperglycemic control (DC) group showed significant increases (P < 0.05) in mean blood sugar, total cholesterol, triglycerides, low-density lipoprotein cholesterol, very low-density lipoprotein cholesterol, blood urea nitrogen, lipid hydroperoxides, and malondialdehyde, compared to the normal control (NC) group The high-density lipoprotein cholesterol, serum insulin, superoxide dismutase, catalase, glutathione disulfide, glutathione peroxidase, reduced glutathione, guaiacol peroxidase, and vitamin E and C levels showed a significant decrease (P < 0.05) in DC group, compared to the NC group. Blood glucose levels, lipid profiles, and insulin levels improved significantly after 28 days of treatment, in the group treated with glibenclamide (an oral hypoglycemic drug, used as positive control), and in the groups treated with P. florida extracts. In DC group, the treatment with P. florida was found to prevent diabetes, according to histopathological studies of the kidneys, pancreas, and liver of rats. In conclusion, this study has shown that the treatment with P. florida decreased oxidative stress and glucose levels in the blood, as well as restoring changes in lipid profiles.
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Affiliation(s)
| | - Tamilselvan Amutha Gokul
- PG and Research Centre in Zoology, Vivekananda College (Affiliated to Madurai Kamaraj University), Tiruvedakam (West), Madurai, TN, India
| | - Kamatchi Ramesh Kumar
- PG and Research Centre in Zoology, Vivekananda College (Affiliated to Madurai Kamaraj University), Tiruvedakam (West), Madurai, TN, India
| | | | - Daoud Ali
- Department of Zoology, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | | | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Italy
| | - Hammad Ullah
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy
| | - Maria Daglia
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, 80131 Naples, Italy; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China.
| | - Paulraj Balaji
- PG and Research Centre in Biotechnology, MGR College, Hosur, TN, India.
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Cai W, Li C, Su Z, Cao J, Chen Z, Chen Y, Guo Z, Cai J, Xu F. Profile of the bile acid FXR-FGF15 pathway in the glucolipid metabolism disorder of diabetic mice suffering from chronic stress. PeerJ 2023; 11:e16407. [PMID: 38025699 PMCID: PMC10656902 DOI: 10.7717/peerj.16407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023] Open
Abstract
Background Imbalances in bile acid (BA) synthesis and metabolism are involved in the onset of diabetes and depression in humans and rodents. However, the role of BAs and the farnesoid X receptor (FXR)/fibroblast growth factor (FGF) 15 signaling pathway in the development of diabetes and depression is still largely unknown. Therefore, we investigated the potential molecular mechanisms of BAs that may be associated with glucolipid metabolism disorders in diabetic mice subjected to chronic stress. Methods The type 2 diabetes mellitus (T2DM) mouse model was induced by feeding mice a high-fat diet and administering an intraperitoneal injection of streptozotocin (STZ). The chronic unpredictable mild stress (CUMS) procedure was performed by introducing a series of mild stressors. Forty mice were randomly divided into the regular chow feeding group and the high-fat diet feeding group. After two weeks of feeding, the mice were randomly divided into four groups: the Control group, CUMS group, T2DM group, and T2DM+CUMS group. The T2DM group and T2DM+CUMS group received an intraperitoneal injection of STZ to induce the T2DM model. The CUMS and T2DM+CUMS groups were exposed to CUMS to induce depressive-like phenotypes. Blood and tissue samples were obtained for pertinent analysis and detection. Results Compared with the T2DM mice, T2DM+CUMS mice had higher blood glucose and lipid levels, insulin resistance, inflammation of the liver and pancreas, impaired liver function, and increased total bile acids. These changes were accompanied by attenuated FXR signaling. Chronic stress was found to attenuate FXR expression and its downstream target, FGF15, in the ileum when compared with the T2DM group. Conclusion FXR may play a role in the diabetic disorder of glucolipid metabolism when aggravated by chronic stress. FXR and its downstream target, FGF15, may be therapeutic targets for treating comorbid T2DM and depression.
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Affiliation(s)
- Weijia Cai
- Fengxian Hospital, Southern Medical University, Shanghai, China
- School of Pharmaceutical Science, Southern Medical University, Guangzhou, China
| | - Canye Li
- Fengxian Hospital, Southern Medical University, Shanghai, China
- School of Pharmaceutical Science, Southern Medical University, Guangzhou, China
| | - Zuanjun Su
- Fengxian Hospital, Southern Medical University, Shanghai, China
- School of Pharmaceutical Science, Southern Medical University, Guangzhou, China
| | - Jinming Cao
- Fengxian Hospital, Southern Medical University, Shanghai, China
- School of Pharmaceutical Science, Southern Medical University, Guangzhou, China
| | - Zhicong Chen
- Fengxian Hospital, Southern Medical University, Shanghai, China
- School of Pharmaceutical Science, Southern Medical University, Guangzhou, China
| | - Yitian Chen
- Fengxian Hospital, Southern Medical University, Shanghai, China
- School of Pharmaceutical Science, Southern Medical University, Guangzhou, China
| | - Zhijun Guo
- Heyou Meihe Hospital, Foshan, Guangdong, China
| | - Jian Cai
- Fengxian Mental Health Center, Shanghai, China
| | - Feng Xu
- Fengxian Hospital, Southern Medical University, Shanghai, China
- Sixth People’ s Hospital South Campus, Shanghai Jiaotong University, Shanghai, China
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Abdelhakm LO, Kandil EI, Mansour SZ, El-Sonbaty SM. Chrysin Encapsulated Copper Nanoparticles with Low Dose of Gamma Radiation Elicit Tumor Cell Death Through p38 MAPK/NF-κB Pathways. Biol Trace Elem Res 2023; 201:5278-5297. [PMID: 36905557 PMCID: PMC10509080 DOI: 10.1007/s12011-023-03596-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 02/04/2023] [Indexed: 03/12/2023]
Abstract
Improving radiation effect on tumor cells using radiosensitizers is gaining traction for improving chemoradiotherapy. This study aimed to evaluate copper nanoparticles (CuNPs) synthesized using chrysin as radiosensitizer with γ-radiation on biochemical and histopathological approaches in mice bearing Ehrlich solid tumor. CuNPs were characterized with irregular round sharp shape with size range of 21.19-70.79 nm and plasmon absorption at 273 nm. In vitro study on MCF-7 cells detected cytotoxic effect of CuNPs with IC50 of 57.2 ± 3.1 μg. In vivo study was performed on mice transplanted with Ehrlich solid tumor (EC). Mice were injected with CuNPs (0.67 mg/kg body weight) and/or exposed to low dose of gamma radiation (0.5 Gy). EC mice exposed to combined treatment of CuNPs and radiation showed a marked reduction in tumor volume, ALT and CAT, creatinine, calcium, and GSH, along with elevation in MDA, caspase-3 in parallel with inhibition of NF-κB, p38 MAPK, and cyclin D1 gene expression. Comparing histopathological findings of treatment groups ends that combined treatment was of higher efficacy, showing tumor tissue regression and increase in apoptotic cells. In conclusion, CuNPs with a low dose of gamma radiation showed more powerful ability for tumor suppression via promoting oxidative state, stimulating apoptosis, and inhibiting proliferation pathway through p38MAPK/NF-κB and cyclinD1.
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Affiliation(s)
- Lubna O Abdelhakm
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Eman I Kandil
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Somaya Z Mansour
- Radiation Biology Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Sawsan M El-Sonbaty
- Radiation Microbiology Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt.
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Paithankar JG, Gupta SC, Sharma A. Therapeutic potential of low dose ionizing radiation against cancer, dementia, and diabetes: evidences from epidemiological, clinical, and preclinical studies. Mol Biol Rep 2023; 50:2823-2834. [PMID: 36595119 PMCID: PMC9808703 DOI: 10.1007/s11033-022-08211-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 12/14/2022] [Indexed: 01/04/2023]
Abstract
The growing use of ionizing radiation (IR)-based diagnostic and treatment methods has been linked to increasing chronic diseases among patients and healthcare professionals. However, multiple factors such as IR dose, dose-rate, and duration of exposure influence the IR-induced chronic effects. The predicted links between low-dose ionizing radiation (LDIR) and health risks are controversial due to the non-availability of direct human studies. The studies pertaining to LDIR effects have importance in public health as exposure to background LDIR is routine. It has been anticipated that data from epidemiological and clinical reports and results of preclinical studies can resolve this controversy and help to clarify the notion of LDIR-associated health risks. Accumulating scientific literature shows reduced cancer risk, cancer-related deaths, curtailed neuro-impairments, improved neural functions, and reduced diabetes-related complications after LDIR exposure. In addition, it was found to alter evolutionarily conserved stress response pathways. However, the picture of molecular signaling pathways in LDIR responses is unclear. Besides, there is limited/no information on biomarkers of epidemiological LDIR exposure. Therefore, the present review discusses epidemiological, clinical, and preclinical studies on LDIR-induced positive effects in three chronic diseases (cancer, dementia, and diabetes) and their associated molecular mechanisms. The knowledge of LDIR response mechanisms may help to devise LDIR-based therapeutic modalities to stop disease progression. Modulation of these pathways may be helpful in developing radiation resistance among humans. However, more clinical evidence with additional biochemical, cellular, and molecular data and exploring the side effects of LDIR are the major areas of future research.
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Affiliation(s)
- Jagdish Gopal Paithankar
- Nitte (Deemed to Be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Kotekar-Beeri Road, Deralakatte, Mangaluru, 575018, India
| | - Subash Chandra Gupta
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India. .,Department of Biochemistry, All India Institute of Medical Sciences, Guwahati, 781001, India.
| | - Anurag Sharma
- Nitte (Deemed to Be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Kotekar-Beeri Road, Deralakatte, Mangaluru, 575018, India.
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Shibrya EE, Rashed RR, Abd El Fattah MA, El-Ghazaly MA, Kenawy SA. Apigenin and Exposure to Low Dose Gamma Radiation Ameliorate Acetic Acid-Induced Ulcerative Colitis in Rats. Dose Response 2023; 21:15593258231155787. [PMID: 36756150 PMCID: PMC9900677 DOI: 10.1177/15593258231155787] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 01/23/2023] [Indexed: 02/05/2023] Open
Abstract
Ulcerative colitis (UC) is an inflammatory bowel disease involving chronic and recurring colon inflammation. Current management protocols are limited by adverse effects or short-term symptomatic relief. We aimed to investigate the possible therapeutic prospect of low dose gamma (γ) irradiation or apigenin treatment in acetic acid-induced UC in rats. Induction of UC was carried out by installation of acetic acid intra-rectally. One hour post-induction, rats received a sole dose of γ-radiation (0.5 Gray) or were treated with apigenin (3 mg/kg/day, peroral) for 7 successive days. Antioxidant and anti-inflammatory effects of both agents were assessed via determination of colon malondialdehyde (MDA), reduced glutathione (GSH), total nitrate/nitrite (NOx), mucosal addressin cell adhesion molecule-1 (MAdCAM-1), and interleukin-1beta (IL-1β) contents as well as myeloperoxidase (MPO) activity. Body weight (BW), colon weight/length (W/L) ratio, disease activity index (DAI), and histopathological changes were evaluated. Gamma irradiation and apigenin significantly ameliorated the acetic acid-induced biochemical and histopathological changes. Both therapeutic approaches significantly restored colon contents of the investigated biomarkers. They modulated BW, colon W/L ratio and DAI. This study proposes low dose γ-irradiation as a new therapeutic candidate for the management of UC. We also concluded that apigenin exhibited therapeutic benefits in UC management.
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Affiliation(s)
- Eman E. Shibrya
- Department of Drug Radiation
Research, National Centre for Radiation Research and Technology,
Egyptian
Atomic Energy Authority, Cairo,
Egypt
| | - Rasha R. Rashed
- Department of Drug Radiation
Research, National Centre for Radiation Research and Technology,
Egyptian
Atomic Energy Authority, Cairo,
Egypt
| | - Mai A. Abd El Fattah
- Department of Pharmacology and
Toxicology, Faculty of Pharmacy, Cairo
University, Cairo, Egypt
| | - Mona A. El-Ghazaly
- Department of Drug Radiation
Research, National Centre for Radiation Research and Technology,
Egyptian
Atomic Energy Authority, Cairo,
Egypt
| | - Sanaa A. Kenawy
- 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, Kasr El-Ainy street,
Cairo 12411, Egypt.
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Radiotherapy Advances in Renal Disease-Focus on Renal Ischemic Preconditioning. BIOENGINEERING (BASEL, SWITZERLAND) 2023; 10:bioengineering10010068. [PMID: 36671640 PMCID: PMC9855155 DOI: 10.3390/bioengineering10010068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 12/23/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023]
Abstract
Ionizing irradiation is widely applied as a fundamental therapeutic treatment in several diseases. Acute kidney injury (AKI) represents a global public health problem with major morbidity and mortality. Renal ischemia/reperfusion (I/R) is the main cause of AKI. I/R injury occurs when blood flow to the kidney is transiently interrupted and then restored. Such an ischemic insult significantly impairs renal function in the short and long terms. Renal ischemic preconditioning (IPC) corresponds to the maneuvers intended to prevent or attenuate the ischemic damage. In murine models, irradiation-induced preconditioning (IP) renders the renal parenchyma resistant to subsequent damage by activating defense pathways involved in oxidative stress, angiogenesis, and inflammation. Before envisioning translational applications in patients, safe irradiation modalities, including timing, dosage, and fractionation, need to be defined.
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Tan H, Yue T, Chen Z, Wu W, Xu S, Weng J. Targeting FGF21 in cardiovascular and metabolic diseases: from mechanism to medicine. Int J Biol Sci 2023; 19:66-88. [PMID: 36594101 PMCID: PMC9760446 DOI: 10.7150/ijbs.73936] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 09/18/2022] [Indexed: 11/24/2022] Open
Abstract
Cardiovascular and metabolic disease (CVMD) is becoming increasingly prevalent in developed and developing countries with high morbidity and mortality. In recent years, fibroblast growth factor 21 (FGF21) has attracted intensive research interest due to its purported role as a potential biomarker and critical player in CVMDs, including atherosclerosis, coronary artery disease, myocardial infarction, hypoxia/reoxygenation injury, heart failure, type 2 diabetes, obesity, and nonalcoholic steatohepatitis. This review summarizes the recent developments in investigating the role of FGF21 in CVMDs and explores the mechanism whereby FGF21 regulates the development of CVMDs. Novel molecular targets and related pathways of FGF21 (adenosine 5'-monophosphate-activated protein kinase, silent information regulator 1, autophagy-related molecules, and gut microbiota-related molecules) are highlighted in this review. Considering the poor pharmacokinetics and biophysical properties of native FGF21, the development of new generations of FGF21-based drugs has tremendous therapeutic potential. Related preclinical and clinical studies are also summarized in this review to foster clinical translation. Thus, our review provides a timely and insightful overview of the physiology, biomarker potential, molecular targets, and therapeutic potential of FGF21 in CVMDs.
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Affiliation(s)
- Huiling Tan
- Department of Endocrinology, Institute of Endocrine and Metabolic Diseases, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Clinical Research Hospital of Chinese Academy of Sciences (Hefei), University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Tong Yue
- Department of Endocrinology, Institute of Endocrine and Metabolic Diseases, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Clinical Research Hospital of Chinese Academy of Sciences (Hefei), University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Zhengfang Chen
- Changshu Hospital Affiliated to Soochow University, Changshu No.1 People's Hospital, Changshu 215500, Jiangsu Province, China
| | - Weiming Wu
- Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu, China
| | - Suowen Xu
- Department of Endocrinology, Institute of Endocrine and Metabolic Diseases, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Clinical Research Hospital of Chinese Academy of Sciences (Hefei), University of Science and Technology of China, Hefei, Anhui, 230001, China.,✉ Corresponding authors: E-mail: ;
| | - Jianping Weng
- Department of Endocrinology, Institute of Endocrine and Metabolic Diseases, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Clinical Research Hospital of Chinese Academy of Sciences (Hefei), University of Science and Technology of China, Hefei, Anhui, 230001, China.,✉ Corresponding authors: E-mail: ;
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Endothelial derived miRNA-9 mediated cardiac fibrosis in diabetes and its regulation by ZFAS1. PLoS One 2022; 17:e0276076. [PMID: 36240130 PMCID: PMC9565427 DOI: 10.1371/journal.pone.0276076] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 09/28/2022] [Indexed: 11/07/2022] Open
Abstract
Diabetic cardiomyopathy (DCM) is one of the most prevalent causes of morbidity and mortality in diabetic patients. Hyperglycemia induces increased expression/deposition of extracellular matrix (ECM) proteins including fibronectin (FN) and collagen (Col) and plays an important role in fibrosis in diabetic cardiomyopathy (DCM). The roles of RNAs including microRNA (miRNA) and long non-coding RNAs (lncRNA) have begun to be understood in many conditions. In this study, we investigated the role of a specific miRNA, miR-9, and its interactions with lncRNA ZFAS1 in mediating fibrosis in DCM. Treatment with 25 mM glucose (HG) decreased miR-9 expression and increased expressions of ZFAS1, ECM proteins and inflammatory markers, compared to 5 mM glucose (NG) in the HCMECs by using qRT-PCR. Glucose-induced upregulation of ECM proteins can be prevented by ZFAS1 siRNA or miR-9 mimic transfection. Luciferase assay was confirmed miR-9 binding to FN 3’-UTR. miR-9 expression can be regulated by ZFAS1 through polycomb repressive complex 2 (PRC2) components using RNA immunoprecipitation (RIP) and chromatin immunoprecipitation (ChIP) assays. In the in vivo experiment, hyperglycemia-induced the ECM production can be prevented by the miR-9 overexpression in the fibrosis in DCM. These studies showed a novel glucose-induced molecular mechanism in which ZFAS1 participates in the transcriptional regulation of ECM protein production in diabetes through miR-9.
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Ju Z, Guo P, Xiang J, Lei R, Ren G, Zhou M, Yang X, Zhou P, Huang R. Low-dose radiation exaggerates HFD-induced metabolic dysfunction by gut microbiota through PA-PYCR1 axis. Commun Biol 2022; 5:945. [PMID: 36088469 PMCID: PMC9464247 DOI: 10.1038/s42003-022-03929-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 08/31/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractCo-exposure of High-fat-diet (HFD) behavior and environmental low-dose radiation (LDR) is common among majority occupational workers, but the synergism of this co-exposure in metabolic health is poorly understood. This study aimed to investigate the impact of gut microbiota and its metabolites on the regulation of HFD accompanied by LDR-associated with metabolic dysfunction and insulin resistance. Here, we reported that Parasutterella was markedly elevated in the gut microbiota of mice in co-exposure of HFD and LDR, accompanied by increased pyrrolidinecarboxylic acid (PA) level in both intestine and plasma. Transplantation of fecal microbiota from mice with co-exposure HFD and LDR with metabolic dysfunction resulted in increased disruption of metabolic dysfunction, insulin resistance and increased PYCR1 (Pyrroline-5-carboxylate reductase 1) expression. Mechanistically, intestinal barrier was damaged more serious in mice with co-exposure of HFD and LDR, leading high PA level in plasma, activating PYCR1 expression to inhibit insulin Akt/mTOR (AKT kinase-transforming protein/Serine threonine-protein kinase) signaling pathway to aggravate HFD-induced metabolic impairments. This study suggests a new avenue for interventions against western diet companied with low dose radiation exposure-driven metabolic impairments.
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C1q/TNF-Related Protein 3 Prevents Diabetic Retinopathy via AMPK-Dependent Stabilization of Blood-Retinal Barrier Tight Junctions. Cells 2022; 11:cells11050779. [PMID: 35269401 PMCID: PMC8909652 DOI: 10.3390/cells11050779] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/18/2022] [Accepted: 02/20/2022] [Indexed: 12/19/2022] Open
Abstract
Background The impairment of the inner blood–retinal barrier (iBRB) increases the pathological development of diabetic retinopathy (DR), a severe complication in diabetic patients. Identifying approaches to preserving iBRB integrity and function is a significant challenge in DR. C1q/tumor necrosis factor-related protein-3 (CTRP3) is a newly discovered adipokine and a vital biomarker, predicting DR severity. We sought to determine whether and how CTRP3 affects the pathological development of non-proliferative diabetic retinopathy (NPDR). Methods To clarify the pathophysiologic progress of the blood–retinal barrier in NPDR and explore its potential mechanism, a mouse Type 2 diabetic model of diabetic retinopathy was used. The capillary leakage was assessed by confocal microscope with fluorescent-labeled protein in vivo. Furthermore, the effect of CTRP3 on the inner blood–retinal barrier (iBRB) and its molecular mechanism was clarified. Results The results demonstrated that CTRP3 protects iBRB integrity and resists the vascular permeability induced by DR. Mechanistically, the administration of CTRP3 activates the AMPK signaling pathway and enhances the expression of Occludin and Claudin-5 (tight junction protein) in vivo and in vitro. Meanwhile, CTRP3 improves the injury of human retinal endothelial cells (HRMECs) induced by high glucose/high lipids (HG/HL), and its protective effects are AMPK-dependent. Conclusions In summary, we report, for the first time, that CTRP3 prevents diabetes-induced retinal vascular permeability via stabilizing the tight junctions of the iBRB and through the AMPK-dependent Occludin/Claudin-5 signaling pathway, thus critically affecting the development of NPDR.
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Yan Z, Cao X, Wang C, Liu S, Li Y, Lu G, Yan W, Guo R, Zhao D, Cao J, Xu Y. C1q/tumor necrosis factor-related protein-3 improves microvascular endothelial function in diabetes through the AMPK/eNOS/NO· signaling pathway. Biochem Pharmacol 2022; 195:114745. [PMID: 34454930 DOI: 10.1016/j.bcp.2021.114745] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/06/2021] [Accepted: 08/24/2021] [Indexed: 02/05/2023]
Abstract
The repair of vascular endothelial cell dysfunction is an encouraging approach for the treatment of vascular complications associated with diabetes. It has been demonstrated that members of C1q/tumor necrosis factor-related protein (CTRP) family may improve endothelial function. Nevertheless, the protective properties of CTRPs in diabetic microvascular complications continue to be mostly unknown. Here, we demonstrate that the C1q-like globular domain of CTRP3, CTRP5, and CTRP9 (gCTRP3, 5, 9) exerted a vasorelaxant effect on the microvasculature, of which gCTRP3 was the most powerful one. In a murine model of type 2 diabetes mellitus, serum gCTRP3 level and endothelial function decreased markedly compared with controls. Two weeks of gCTRP3 treatment (0.5 μg/g/d) enhanced endothelium-dependent relaxation in microvessels, increased nitric oxide (NO·) production, and reduced retinal vascular leakage. In addition, Western blotting in human retinal microvascular endothelial cells indicated that gCTRP3 triggered AMP-activated protein kinase-α (AMPKα), hence increasing the endothelial NO synthase (eNOS) level and NO· production. In addition, incubation with gCTRP3 in vitro ameliorated the endothelial dysfunction induced by high glucose in the branch of the mesenteric artery. Blockade of either eNOS or AMPKα completely abolished the effects of gCTRP3 described above. Taken together, we demonstrate for the first time that gCTRP3 improves impaired vasodilatation of microvasculature in diabetes by ameliorating endothelial cell function through the AMPK/eNOS/NO· signaling pathway. This finding may suggest an effective intervention against diabetes-associated microvascular complications.
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Affiliation(s)
- Zheyi Yan
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China; Department of Ophthalmology, First Hospital of Shanxi Medical University, Taiyuan, China; Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, PA, United States; Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, China
| | - Xiaoming Cao
- Department of Orthopedics, Shanxi Medical University Second Affiliated Hospital, Taiyuan, China
| | - Chunfang Wang
- Department of Ophthalmology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Sha Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Yanjie Li
- Department of Ophthalmology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Gan Lu
- Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, PA, United States; Laboratory of Emergency Medicine, Department of Emergency Medicine, Sichuan University West China Hospital, Chengdu, China
| | - Wenjun Yan
- Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, PA, United States; Department of Cardiology, Xijing Hospital, Xian, China
| | - Rui Guo
- Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, PA, United States; Morphology Laboratory, Shanxi Medical University, Taiyuan, China
| | - Dajun Zhao
- Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, PA, United States; Department of Cardiac Surgery, Zhongshan Hospital Fudan University, Shanghai, China
| | - Jimin Cao
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, China
| | - Yong Xu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China.
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Sun CS, Wang YQ, Zhang ZL, Liou Y, Zhou HH. Distinctive quality control method for solid-state fermented Isaria cicadae from strain Ic-17-7 and application in a rat model of type 2 diabetes. Chin J Nat Med 2021; 19:921-929. [PMID: 34961590 DOI: 10.1016/s1875-5364(21)60113-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Indexed: 11/17/2022]
Abstract
This work was aimed to establish a quality control method for evaluating the effects on glucose and lipids of the fruiting body of Isaria cicadae Miquel from strain Ic-17-7 (Ic-17-7fb) using a rat model of type 2 diabetes (T2DM). Random amplified polymorphic DNA, sequence-characterized amplified region, and high-performance liquid chromatography (HPLC) were used for the quality control of Ic-17-7fb. The pharmacological effects on streptozocin (STZ)-induced high fat diet (HFD)-fed Albino Wistar rats were evaluated. The rats underwent the following treatments: control, metformin, Ic-17-7fb (0.166 and 0.5 g·kg-1) or without treatment. The fasting blood glucose (FBG), blood glucose, total cholesterol (TC), triglyceride (TG), high-density lipoprotein (HDL-c), and low-density lipoprotein (LDL-c) were measured. Ic-17-7fb amplified a single specific band by S11-2-F3 and S11-2-R3 primers. An HPLC-based quality and quantity method was established for industrial application. The contents of adenosine and N6-(2-hydroxyethyl) adenosine (HEA) of the cultivated Ic-17-7fb were analyzed. All of the validation lots of cultured Ic-17-7fb passed the quantity control of the training set (0.90 mg·g-1 of adenosine and 0.89 mg·g-1 of HEA). After two weeks of administration, the average FBG was 4.89 ± 0.42 (control), 26.10 ± 5.77 (model), 23.63 ± 6.15 (metformin), 17.96 ± 9.36 (Ic-17-7fb for 0.166 g·kg-1), and 19.69 ± 8.71 mmol·L-1 (Ic-17-7fb for 0.5 g·kg-1). The FBG of Ic-17-7fb (0.166 g·kg-1) treatment significantly reduced by 31.19%, compared with the model after two weeks of administration (P < 0.01). Metformin, Ic-17-7fb (0.166 g·kg -1), and Ic-17-7fb (0.5 g·kg-1) reduced TC, TG, HDL-c, and LDL-c compared with the T2DM model treatment at the 6th week of treatment (P < 0.05). This study established the first quality standard for Ic-17-7fb, which can be effectively applied in the treatment of T2DM. The reliable quality control method and pharmacological effect will broaden its application space.
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Affiliation(s)
- Chang-Sheng Sun
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China; China Zhejiang Bioasia Life Science Institute, Pinghu 314200, China
| | - Yu-Qin Wang
- China Zhejiang Bioasia Life Science Institute, Pinghu 314200, China.
| | | | - Yuligh Liou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha 410078, China; National Clinical Research Center for Geriatric Disorders, Changsha 410008, China.
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13
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Meng Z, Liang H, Zhao J, Gao J, Liu C, Ma X, Liu J, Liang B, Jiao X, Cao J, Wang Y. HMOX1 upregulation promotes ferroptosis in diabetic atherosclerosis. Life Sci 2021; 284:119935. [PMID: 34508760 DOI: 10.1016/j.lfs.2021.119935] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 12/26/2022]
Abstract
OBJECTIVE Atherosclerotic vascular disease remains the principal cause of death and disability among patients with type 2 diabetes. Unfortunately, the problem is not adequately resolved by therapeutic strategies with currently available drugs or approaches that solely focus on optimal glycemic control. To identify the key contributors and better understand the mechanism of diabetic atherosclerotic vascular disease, we aimed to elucidate the key genetic characteristics and pathological pathways in atherosclerotic vascular disease through nonbiased bioinformatics analysis and subsequent experimental demonstration and exploration in diabetic atherosclerotic vascular disease. METHODS AND RESULTS Sixty-eight upregulated and 23 downregulated genes were identified from the analysis of gene expression profiles (GSE30169 and GSE6584). A comprehensive bioinformatic assay further identified that ferroptosis, a new type of programmed cell death and HMOX1 (a gene that encodes heme oxygenase), were vital factors in atherosclerotic vascular disease. We further demonstrated that diabetes significantly increased ferroptosis and HMOX1 levels compared to normal controls. Importantly, the ferroptosis inhibitor ferrostatin-1 (Fer-1) effectively attenuated diabetic atherosclerosis, suggesting the causative role of ferroptosis in diabetic atherosclerosis development. At the cellular level, Fer-1 ameliorated high glucose high lipid-induced lipid peroxidation and downregulated ROS production. More importantly, HMOX1 knockdown attenuated Fe2+ overload, reduced iron content and ROS, and alleviated lipid peroxidation, which led to a reduction in ferroptosis in diabetic human endothelial cells. CONCLUSIONS We demonstrated that HMOX1 upregulation is responsible for the increased ferroptosis in diabetic atherosclerosis development, suggesting that HMOX1 may serve as a potential therapeutic or drug development target for diabetic atherosclerosis.
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Affiliation(s)
- Zhijun Meng
- Department of Physiology, Key Laboratory of Cellular Physiology, Shanxi Medical University, Taiyuan, Shanxi, China; Clinical Laboratory, Shanxi Provincial People's Hospital of Shanxi Medical University, Taiyuan, Shanxi, China; Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Hongping Liang
- Clinical Laboratory, Shanxi Provincial People's Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Jianli Zhao
- Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Jia Gao
- Department of Physiology, Key Laboratory of Cellular Physiology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Caihong Liu
- Department of Physiology, Key Laboratory of Cellular Physiology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xinliang Ma
- Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Jing Liu
- Department of Physiology, Key Laboratory of Cellular Physiology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Bin Liang
- Department of Cardiology, The Second Affiliated Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xiangying Jiao
- Department of Physiology, Key Laboratory of Cellular Physiology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Jimin Cao
- Department of Physiology, Key Laboratory of Cellular Physiology, Shanxi Medical University, Taiyuan, Shanxi, China.
| | - Yajing Wang
- Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, PA, United States of America.
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14
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Low Dose Ionising Radiation-Induced Hormesis: Therapeutic Implications to Human Health. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11198909] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The concept of radiation-induced hormesis, whereby a low dose is beneficial and a high dose is detrimental, has been gaining attention in the fields of molecular biology, environmental toxicology and radiation biology. There is a growing body of literature that recognises the importance of hormetic dose response not only in the radiation field, but also with molecular agents. However, there is continuing debate on the magnitude and mechanism of radiation hormetic dose response, which could make further contributions, as a research tool, to science and perhaps eventually to public health due to potential therapeutic benefits for society. The biological phenomena of low dose ionising radiation (LDIR) includes bystander effects, adaptive response, hypersensitivity, radioresistance and genomic instability. In this review, the beneficial and the detrimental effects of LDIR-induced hormesis are explored, together with an overview of its underlying cellular and molecular mechanisms that may potentially provide an insight to the therapeutic implications to human health in the future.
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15
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Yu L, Liu Y, Jin Y, Liu T, Wang W, Lu X, Zhang C. Zinc Supplementation Prevented Type 2 Diabetes-Induced Liver Injury Mediated by the Nrf2-MT Antioxidative Pathway. J Diabetes Res 2021; 2021:6662418. [PMID: 34307690 PMCID: PMC8279848 DOI: 10.1155/2021/6662418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 05/31/2021] [Accepted: 06/24/2021] [Indexed: 12/03/2022] Open
Abstract
Zinc is an essential trace element that is often reduced under the type 1 diabetic condition. Previous studies demonstrated that zinc deficiency enhanced type 1 diabetes-induced liver injury and that zinc supplementation significantly helped to prevent this. Due to the differences in pathogenesis between type 1 and type 2 diabetes, it is unknown whether zinc supplementation can induce a beneficial effect on type 2 diabetes-induced liver injury. This possible protective mechanism was investigated in the present study. A high-fat diet, along with a one-time dose of streptozotocin, was applied to metallothionein (MT) knockout mice, nuclear factor-erythroid 2-related factor (Nrf) 2 knockout mice, and age-matched wild-type (WT) control mice, in order to induce type 2 diabetes. This was followed by zinc treatment at 5 mg/kg body weight given every other day for 3 months. Global metabolic disorders of both glucose and lipids were unaffected by zinc supplementation. This induced preventive effects on conditions caused by type 2 diabetes like oxidative stress, apoptosis, the subsequent hepatic inflammatory response, fibrosis, hypertrophy, and hepatic dysfunction. Additionally, we also observed that type 2 diabetes reduced hepatic MT expression, while zinc supplementation induced hepatic MT expression. This is a crucial antioxidant. A mechanistic study showed that MT deficiency blocked zinc supplementation-induced hepatic protection under the condition of type 2 diabetes. This suggested that endogenous MT is involved in the hepatic protection of zinc supplementation in type 2 diabetic mice. Furthermore, zinc supplementation-induced hepatic MT increase was unobserved once Nrf2 was deficient, indicating that Nrf2 mediated the upregulation of hepatic MT in response to zinc supplementation. Results of this study indicated that zinc supplementation prevented type 2 diabetes-induced liver injury through the activation of the Nrf2-MT-mediated antioxidative pathway.
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Affiliation(s)
- Lechu Yu
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yuanyuan Liu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Yichun Jin
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Tinghao Liu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Wenhan Wang
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xuemian Lu
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chi Zhang
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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16
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Satyamitra MM, Cassatt DR, Hollingsworth BA, Price PW, Rios CI, Taliaferro LP, Winters TA, DiCarlo AL. Metabolomics in Radiation Biodosimetry: Current Approaches and Advances. Metabolites 2020; 10:metabo10080328. [PMID: 32796693 PMCID: PMC7465152 DOI: 10.3390/metabo10080328] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/01/2020] [Accepted: 08/06/2020] [Indexed: 12/11/2022] Open
Abstract
Triage and medical intervention strategies for unanticipated exposure during a radiation incident benefit from the early, rapid and accurate assessment of dose level. Radiation exposure results in complex and persistent molecular and cellular responses that ultimately alter the levels of many biological markers, including the metabolomic phenotype. Metabolomics is an emerging field that promises the determination of radiation exposure by the qualitative and quantitative measurements of small molecules in a biological sample. This review highlights the current role of metabolomics in assessing radiation injury, as well as considerations for the diverse range of bioanalytical and sampling technologies that are being used to detect these changes. The authors also address the influence of the physiological status of an individual, the animal models studied, the technology and analysis employed in interrogating response to the radiation insult, and variables that factor into discovery and development of robust biomarker signatures. Furthermore, available databases for these studies have been reviewed, and existing regulatory guidance for metabolomics are discussed, with the ultimate goal of providing both context for this area of radiation research and the consideration of pathways for continued development.
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Affiliation(s)
- Merriline M. Satyamitra
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), and National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), 5601 Fishers Lane, Rockville, MD 20852, USA; (D.R.C.); (B.A.H.); (C.I.R.); (L.P.T.); (T.A.W.); (A.L.D.)
- Correspondence: ; Tel.: +1-240-669-5432
| | - David R. Cassatt
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), and National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), 5601 Fishers Lane, Rockville, MD 20852, USA; (D.R.C.); (B.A.H.); (C.I.R.); (L.P.T.); (T.A.W.); (A.L.D.)
| | - Brynn A. Hollingsworth
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), and National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), 5601 Fishers Lane, Rockville, MD 20852, USA; (D.R.C.); (B.A.H.); (C.I.R.); (L.P.T.); (T.A.W.); (A.L.D.)
| | - Paul W. Price
- Office of Regulatory Affairs, Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), 5601 Fishers Lane, Rockville, MD 20852, USA;
| | - Carmen I. Rios
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), and National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), 5601 Fishers Lane, Rockville, MD 20852, USA; (D.R.C.); (B.A.H.); (C.I.R.); (L.P.T.); (T.A.W.); (A.L.D.)
| | - Lanyn P. Taliaferro
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), and National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), 5601 Fishers Lane, Rockville, MD 20852, USA; (D.R.C.); (B.A.H.); (C.I.R.); (L.P.T.); (T.A.W.); (A.L.D.)
| | - Thomas A. Winters
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), and National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), 5601 Fishers Lane, Rockville, MD 20852, USA; (D.R.C.); (B.A.H.); (C.I.R.); (L.P.T.); (T.A.W.); (A.L.D.)
| | - Andrea L. DiCarlo
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), and National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), 5601 Fishers Lane, Rockville, MD 20852, USA; (D.R.C.); (B.A.H.); (C.I.R.); (L.P.T.); (T.A.W.); (A.L.D.)
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Geniposide alleviates diabetic nephropathy of mice through AMPK/SIRT1/NF-κB pathway. Eur J Pharmacol 2020; 886:173449. [PMID: 32758570 DOI: 10.1016/j.ejphar.2020.173449] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/24/2020] [Accepted: 07/29/2020] [Indexed: 12/14/2022]
Abstract
Geniposide (GE) can effectively inhibit diabetic nephropathy (DN), but its mechanism is unclear. The objective of this study was to explore the antidiabetic nephropathy effects of GE both in high fat diet/streptozotocin-induced DN mice and in high glucose-induced podocyte model. Renal function in DN mice was evaluated by levels of serum creatinine (Scr) and blood urea nitrogen (BUN). Renal inflammation was appraised by pro-inflammatory cytokines: Tumor necrosis factor α (TNF-α), Interleukin 6 (IL-6) and IL-1β via ELISA assay. Renal histopathology analysis was conducted via hematoxylin and eosin, Masson and periodic acid-silver metheramine staining. Cellular viability was measured by Terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling assay. Moreover, the related proteins p-NF-κB, ASC, Cleave-IL-1β, NLRP3, Cleave-Caspase-1 and GSDMD-N in AMPK/SIRT1/NF-κB pathway were assayed by Western blotting. In order to further investigate the effects of GE on podocytes, we also assessed these protein levels in AMPK/SIRT1/NF-κB pathway after siRNA-AMPK intervention by Western blotting. GE alleviated renal dysfunction as evidenced by decreased levels of Scr, BUN, TNF-α, IL-6 and IL-1β. Histological examination revealed GE effectively attenuated kidney damage, including glomerular basement membrane thickening and inflammatory cells infiltration. AMPK, p-AMPK and SIRT1 levels were obviously decreased both in DN mice and in podocyte model, but GE reversed these changes. The protein expressions in APMK/SIRT1/NF-κB pathway were significantly decreased by GE treatment. These results suggested that GE could efficiently block oxidative stress and inflammatory responses accompanied with pyroptosis, thus inhibiting the development of DN, and its mechanism might be related to APMK/SIRT1/NF-κB pathway.
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18
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Khandelwal M, Manglani K, Gupta S, Tiku AB. Gamma radiation improves AD pathogenesis in APP/PS1 mouse model by potentiating insulin sensitivity. Heliyon 2020; 6:e04499. [PMID: 32775714 PMCID: PMC7399127 DOI: 10.1016/j.heliyon.2020.e04499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 04/23/2020] [Accepted: 07/15/2020] [Indexed: 11/30/2022] Open
Abstract
Alzheimer's disease (AD) is the largest unmet medical complication. The devastation caused by the disease can be assumed from the disease symptoms like speech impairment, loss of self-awareness, acute memory loss etc. The individuals suffering from AD completely depend on caregivers and have to bear the high cost of treatment which increases the socio-economic burden on the society. Recent studies have shown that radiation exposure can have therapeutic effects when given in suitable amount for a specific time period. Therefore, we investigated the role of gamma irradiation in AD pathogenesis. The effect of radiation on amelioration of disease progression was studied in AD transgenic mice model (APP/PS1). Our in-vivo studies using APP/PS1 mice demonstrated that a single dose of 4.0 Gy gamma irradiation improves AD associated behavioral impairment. Radiation exposure also increased the level of anti-oxidant enzymes and reduced the astrocyte activation in the brain of APP/PS1 mice. A significant reduction was observed in AD associated proteins (APP, pTau, BACE) and neurofibrillary tangle formations (NFTs). Exposure to a single dose of 4 Gy gamma radiation also increased glucose metabolic functionality in AD transgenic mouse model. The kinases involved in insulin signaling such as GSK, ERK and JNK were also found to be modulated. However, an increased level of GSK3β (ser 9) was observed, which could be responsible for downregulating ERK and JNK phosphorylation. This resulted in a decrease in neurofibrillary tangle formations and amyloid deposition. The reduced hyperphosphorylation of Tau can be attributed to the increased level of GSK3β (ser 9) downregulating ERK and JNK phosphorylation. Thus, a single dose of 4 Gy gamma irradiation was found to have therapeutic benefits in treating AD via potentiating insulin signaling in APP/PS1 transgenic mice.
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Affiliation(s)
- Mayuri Khandelwal
- Molecular Science Laboratory, National Institute of Immunology, New Delhi, 110067, India.,Radiation and Cancer Therapeutics Lab, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Kapil Manglani
- Molecular Science Laboratory, National Institute of Immunology, New Delhi, 110067, India
| | - Sarika Gupta
- Molecular Science Laboratory, National Institute of Immunology, New Delhi, 110067, India
| | - Ashu Bhan Tiku
- Radiation and Cancer Therapeutics Lab, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
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Balaji P, Madhanraj R, Rameshkumar K, Veeramanikandan V, Eyini M, Arun A, Thulasinathan B, Al Farraj D, Elshikh M, Alokda A, Mahmoud A, Tack JC, Kim HJ. Evaluation of antidiabetic activity of Pleurotus pulmonarius against streptozotocin-nicotinamide induced diabetic wistar albino rats. Saudi J Biol Sci 2020; 27:913-924. [PMID: 32127771 PMCID: PMC7042672 DOI: 10.1016/j.sjbs.2020.01.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/20/2020] [Accepted: 01/22/2020] [Indexed: 02/06/2023] Open
Abstract
The current research aims to evaluate the antidiabetic properties of Pleurotus pulmonarius, an edible basidiomycetes mushroom fungi in diabetic induced wistar albino rats. Mycelial Hot Water Extracts (HWE) and Acetone Extracts (AE) of Pleurotus pulmonarius was orally administrated to STZ-NA induced (55 mg/kilogram body weight) diabetic wistar albino rats at a concentration of 200 and 400 mg/kg for 4 weeks. The outcomes revealed that the HWE of Pleurotus pulmonarius resulted in a significant (p < 0.001) reduction in blood glucose level. A noteworthy (p < 0.001) reduction in serum lipid profile and elevation in High-Density Lipoprotein Cholesterol (HDL-C) after administration with HWE, also demonstrating the protective effects of HWE in diabetes-related complications. Besides all antidiabetic parameters, pathological morphology of the pancreas, liver and kidney are regularised. This observation indicated that HWE of Pleurotus pulmonarius possessed higher antidiabetic activity than AE. Besides, HWE also promoted a significant control of alpha amylase enzyme in a concentration-dependent manner with a maximum activity of 99.23% inhibition at 1000 µg/ml. The outcomes of the present study indicated that the HWE possesses a potential antidiabetic activity both in vitro and in vivo. Thus, it can be used as a nontoxic complementary drug in the controlling of diabetes and related complications, thus providing scientific authentication of its use as an antidiabetic agent.
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Affiliation(s)
- P. Balaji
- PG and Research Centre in Biotechnology, MGR College, Hosur, Tamilnadu, India
| | - R. Madhanraj
- PG and Research Centre in Biotechnology, MGR College, Hosur, Tamilnadu, India
| | - K. Rameshkumar
- PG and Research Department of Zoology, Vivekananda College, Madurai, Tamilnadu, India
| | - V. Veeramanikandan
- PG and Research Centre in Microbiology, MGR College, Hosur, Tamilnadu, India
| | - M. Eyini
- Centre for Research and PG Studies in Botany, Thiagarajar College, Madurai, Tamilnadu, India
| | - A. Arun
- Bioenergy and Bioremediation Laboratory, Department of Microbiology, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Boobalan Thulasinathan
- Bioenergy and Bioremediation Laboratory, Department of Microbiology, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - D.A. Al Farraj
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - M.S. Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - A.M. Alokda
- Department of Applied Medical Chemistry, Medical Research Institution, Alexandria university, Alexandria, Egypt
| | - A.H. Mahmoud
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - J.-C. Tack
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - H.-J. Kim
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
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Lin S, Yu L, Ni Y, He L, Weng X, Lu X, Zhang C. Fibroblast Growth Factor 21 Attenuates Diabetes-Induced Renal Fibrosis by Negatively Regulating TGF-β-p53-Smad2/3-Mediated Epithelial-to-Mesenchymal Transition via Activation of AKT. Diabetes Metab J 2020; 44:158-172. [PMID: 31701691 PMCID: PMC7043973 DOI: 10.4093/dmj.2018.0235] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 04/02/2019] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Epithelial-to-mesenchymal transition (EMT) is required for renal fibrosis, which is a characteristic of diabetic nephropathy (DN). Our previous study demonstrated that fibroblast growth factor 21 (FGF21) prevented DN associated with the suppressing renal connective tissue growth factor expression, a key marker of renal fibrosis. Therefore, the effects of FGF21 on renal fibrosis in a DN mouse model and the underlying mechanisms were investigated in this study. METHODS Type 1 diabetes mellitus was induced in C57BL/6J mice by intraperitoneal injections of multiple low doses of streptozotocin. Then, diabetic and non-diabetic mice were treated with or without FGF21 in the presence of pifithrin-α (p53 inhibitor) or 10-[4'-(N,N-Diethylamino)butyl]-2-chlorophenoxazine hydrochloride (10-DEBC) hydrochloride (Akt inhibitor) for 4 months. RESULTS DN was diagnosed by renal dysfunction, hypertrophy, tubulointerstitial lesions, and glomerulosclerosis associated with severe fibrosis, all of which were prevented by FGF21. FGF21 also suppressed the diabetes-induced renal EMT in DN mice by negatively regulating transforming growth factor beta (TGF-β)-induced nuclear translocation of Smad2/3, which is required for the transcription of multiple fibrotic genes. The mechanistic studies showed that FGF21 attenuated nuclear translocation of Smad2/3 by inhibiting renal activity of its conjugated protein p53, which carries Smad2/3 into the nucleus. Moreover pifithrin-α inhibited the FGF21-induced preventive effects on the renal EMT and subsequent renal fibrosis in DN mice. In addition, 10-DEBC also blocked FGF21-induced inhibition of renal p53 activity by phosphorylation of mouse double minute-2 homolog (MDM2). CONCLUSION FGF21 prevents renal fibrosis via negative regulation of the TGF-β/Smad2/3-mediated EMT process by activation of the Akt/MDM2/p53 signaling pathway.
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Affiliation(s)
- Sundong Lin
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Lechu Yu
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yongqing Ni
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lulu He
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Xiaolu Weng
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China
| | - Xuemian Lu
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
| | - Chi Zhang
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China.
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Zhao H, Zhang H, Wang Y, Zhao T, Yan M, Dong X, Wang Q, Li J, Ma L, Li P. Association between PNPLA2 Gene Polymorphisms and the Risk of Diabetic Kidney Disease in a Chinese Han Population with Type 2 Diabetes. J Diabetes Res 2020; 2020:5424701. [PMID: 32685558 PMCID: PMC7352120 DOI: 10.1155/2020/5424701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 06/22/2020] [Indexed: 12/29/2022] Open
Abstract
Diabetic kidney disease (DKD) is one of the most common complications of diabetes and the leading cause of end-stage renal disease. Here, we investigated the association of PNPLA2 gene variations with DKD susceptibility in a Chinese Han population. A total of 818 participants with type 2 diabetes were recruited in the case-control study, including 379 patients diagnosed with DKD. We observed that 2 tagSNPs, PNPLA2 rs28633403 (A>G) and rs1138714 (A>G), were associated with DKD (rs28633403: genotype, P = 0.017; allele, P = 0.015; rs1138714: genotype, P = 0.029; allele, P = 0.018). PNPLA2 rs1138693 (T>C), a missense SNP, showed no association with DKD (genotype, P = 0.966; allele, P = 0.845). Genetic model analysis revealed that minor allele G of PNPLA2 rs28633403 was a protective factor of DKD in a dominant model adjusted by confounders (AG+GG vs. AA: adjusted odds ratio (aOR), 0.619; 95% CI 0.447-0.857; P = 0.004) and in an additive model (AG vs. AA: aOR, 0.633; 95% CI 0.447-0.895; P = 0.010; GG vs. AA: aOR, 0.588; 95% CI 0.385-0.897; P = 0.014). Minor allele G of PNPLA2 rs1138714 was associated with a higher risk of DKD in a dominant model adjusted by confounders (AG+GG vs. AA: adjusted odds ratio (aOR), 1.531; 95% CI 1.134-2.067; P = 0.005) and in an additive model (AG vs. AA: aOR, 1.529; 95% CI 1.118-2.091; P = 0.008). The combined effect of PNPLA2 rs28633403 AA+rs1138714 AG or GG genotype showed an association with DKD, adjusted by confounders (aOR, 2.194; 95% CI 1.378-3.492; P = 0.001), which was considered statistically significant with a markedly increased risk of DKD after a Holm-Bonferroni correction for multiple tests (P < 0.00125). Our results suggest that PNPLA2 rs28633403 and rs1138714 are significantly associated with the risk of DKD in a Chinese Han population with type 2 diabetes.
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Affiliation(s)
- Hailing Zhao
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
| | - Haojun Zhang
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
| | - Yan Wang
- Beijing Key Laboratory of Diabetes Research and Care, Center for Endocrine Metabolism and Immune Diseases, Luhe Hospital, Capital Medical University, Beijing, China
| | - Tingting Zhao
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
| | - Meihua Yan
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
| | - Xi Dong
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
| | - Qian Wang
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
| | - Jialin Li
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
| | - Liang Ma
- Clinical Laboratory, China-Japan Friendship Hospital, Beijing, China
| | - Ping Li
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
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Anti-Diabetic Nephropathy Activities of Polysaccharides Obtained from Termitornyces albuminosus via Regulation of NF-κB Signaling in db/db Mice. Int J Mol Sci 2019; 20:ijms20205205. [PMID: 31640118 PMCID: PMC6829325 DOI: 10.3390/ijms20205205] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 10/14/2019] [Accepted: 10/14/2019] [Indexed: 12/15/2022] Open
Abstract
Termitornyces albuminosus is a kind of traditional Chinese edible fungus rich in nutrients and medicinal ingredients, and it has anti-oxidative, analgesic and anti-inflammatory effects. However, the hypoglycemic and nephroprotective effects of polysaccharides separated from T. albuminosus (PTA) have not been reported. The properties of PTA were analyzed in a BKS.Cg-Dock7m +/+ Leprdb/JNju (db/db) mouse model of diabetes. After the administration of PTA for eight weeks, the hypoglycemic and hypolipidemic activities of PTA in the db/db mice were assessed. The results of a cytokine array combined with an enzyme-linked immunosorbent assay confirmed the anti-oxidative and anti-inflammatory activities of PTA. An eight-week administration of PTA caused hypoglycemic and hypolipidemic functioning, as indicated by suppressed plasma glucose levels, as well as the modulation of several cytokines related to glycometabolism, in the sera and kidneys of the mice. PTA treatment also had a protective effect on renal function, restoring renal structures and regulating potential indicators of nephropathy. In the kidneys of the db/db mice, PTA treatment reduced the activation of protein kinase B, the inhibitor of κB kinase alpha and beta, and the inhibitor of κB alpha and nuclear factor-κB (NF-κB). We establish the hypoglycemic, hypolipidemic, and anti-diabetic nephropathy effects of PTA, and we find that the renal protection effects of PTA may be related to anti-inflammatory activity via the regulation of NF-κB signaling.
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Wang D, Jiang X, Teng S, Zhang Y, Liu Y, Li X, Li Y. The Antidiabetic and Antinephritic Activities of Auricularia cornea (An Albino Mutant Strain) via Modulation of Oxidative Stress in the db/db Mice. Front Immunol 2019; 10:1039. [PMID: 31134090 PMCID: PMC6517500 DOI: 10.3389/fimmu.2019.01039] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 04/23/2019] [Indexed: 12/04/2022] Open
Abstract
This study first systematically analyzed the constituents of an albino mutant strain of Auricularia cornea (AU). After 8 weeks of continuous treatment with metformin (Met) (0.1 g/kg) and AU (0.1 and 0.4 g/kg), db/db mice showed hypoglycemic functioning, indicated by reduced bodyweight, food intake, plasma glucose, serum levels of glycated hemoglobin A1c and glucagon, hepatic levels of phosphoenolpyruvate carboxykinase and lucose-6-phosphatasem, and increased serum levels of insulin. The effect of hypolipidemic functions were indicated by suppressed levels of total cholesterol and triglyceride, and enhanced levels of hepatic glycogen and high-density lipoprotein cholesterol. The renal protective effect of AU was confirmed by the protection in renal structures and the regulation of potential indicators of nephropathy. The anti-oxidative and anti-inflammatory effects of AU were verified by a cytokine array combined with an enzyme-linked immunosorbent assay. AU decreased the expression of protein kinase C α and β2 and phosphor-nuclear factor-κB, and enhanced the expression of catalase, nuclear respiratory factor 2 (Nrf2), manganese superoxide dismutase 2, heme oxygenase-1 and−2, heat shock protein 27 (HSP27), HSP60, and HSP70 in the kidneys of db/db mice. The results confirmed that AU's anti-diabetic and anti-nephritic effects are related to its modulation on oxidative stress.
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Affiliation(s)
- Di Wang
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China.,School of Life Sciences, Jilin University, Changchun, China
| | - Xue Jiang
- School of Life Sciences, Jilin University, Changchun, China
| | - Shanshan Teng
- School of Life Sciences, Jilin University, Changchun, China
| | - Yaqin Zhang
- School of Life Sciences, Jilin University, Changchun, China
| | - Yang Liu
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
| | - Xiao Li
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
| | - Yu Li
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
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24
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Guéguen Y, Bontemps A, Ebrahimian TG. Adaptive responses to low doses of radiation or chemicals: their cellular and molecular mechanisms. Cell Mol Life Sci 2019; 76:1255-1273. [PMID: 30535789 PMCID: PMC11105647 DOI: 10.1007/s00018-018-2987-5] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 11/09/2018] [Accepted: 12/03/2018] [Indexed: 12/17/2022]
Abstract
This article reviews the current knowledge on the mechanisms of adaptive response to low doses of ionizing radiation or chemical exposure. A better knowledge of these mechanisms is needed to improve our understanding of health risks at low levels of environmental or occupational exposure and their involvement in cancer or non-cancer diseases. This response is orchestrated through a multifaceted cellular program involving the concerted action of diverse stress response pathways. These evolutionary highly conserved defense mechanisms determine the cellular response to chemical and physical aggression. They include DNA damage repair (p53, ATM, PARP pathways), antioxidant response (Nrf2 pathway), immune/inflammatory response (NF-κB pathway), cell survival/death pathway (apoptosis), endoplasmic response to stress (UPR response), and other cytoprotective processes including autophagy, cell cycle regulation, and the unfolded protein response. The coordinated action of these processes induced by low-dose radiation or chemicals produces biological effects that are currently estimated with the linear non-threshold model. These effects are controversial. They are difficult to detect because of their low magnitude, the scarcity of events in humans, and the difficulty of corroborating associations over the long term. Improving our understanding of these biological consequences should help humans and their environment by enabling better risk estimates, the revision of radiation protection standards, and possible therapeutic advances.
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Affiliation(s)
- Yann Guéguen
- Institut de Radioprotection et de Sureté Nucléaire (IRSN), PSE-SANTE, SESANE, LRTOX, B.P. no 17, 92262, Fontenay-aux-Roses Cedex, France.
- Institut de Radioprotection et de Sureté Nucléaire (IRSN), PSE-SANTE, SESANE, LRSI, Fontenay-aux-Roses, France.
| | - Alice Bontemps
- Institut de Radioprotection et de Sureté Nucléaire (IRSN), PSE-SANTE, SESANE, LRTOX, B.P. no 17, 92262, Fontenay-aux-Roses Cedex, France
| | - Teni G Ebrahimian
- Institut de Radioprotection et de Sureté Nucléaire (IRSN), PSE-SANTE, SESANE, LRTOX, B.P. no 17, 92262, Fontenay-aux-Roses Cedex, France
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25
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Kojima S, Cuttler JM, Shimura N, Koga H, Murata A, Kawashima A. Radon Therapy for Autoimmune Diseases Pemphigus and Diabetes: 2 Case Reports. Dose Response 2019; 17:1559325819850984. [PMID: 31191185 PMCID: PMC6537674 DOI: 10.1177/1559325819850984] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 04/10/2019] [Accepted: 04/23/2019] [Indexed: 12/24/2022] Open
Abstract
We report on the application of radon therapy to relieve the suffering of 2 patients with autoimmune diseases, one with pemphigus with an old myocardial infarction and diabetes mellitus and the other with type I diabetes. We include a lengthy discussion of the biological mechanisms that we believe produced the observed benefits. During the 6 to 9 months of the treatments, the marker values decreased to the upper limit of their normal ranges and the symptoms of the diseases were alleviated. Disorders of Th1/Th2 balance are implicated in the onset of many diseases, including autoimmune diseases. Our decision to give radon (222Rn) therapy to these patients was based on the results of 2 similar case reports and our earlier mouse experiments, which indicated that low doses of radiation induce regulatory T cells. Regulatory T cells regulate the T helper 1 cell and the T helper 2 cell balance. There are more than 80 different autoimmune diseases that are treated with anti-inflammatory agents or immune-suppressing drugs because the exact causes of these diseases and the cures are unknown. These and other case reports indicate that proper radon therapy is an effective treatment. We urge physicians to consider radon as a standard therapy for refractory autoimmune diseases.
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Affiliation(s)
- Shuji Kojima
- Department of Radiation Biosciences, Faculty of Pharmaceutical Sciences, Tokyo University of Science (TUS), Tokyo, Japan
| | | | - Noriko Shimura
- Faculty of Pharmaceutical Sciences, Ohu University, Koriyama, Japan
| | | | | | - Akira Kawashima
- Tokyo Ariake University of Medical and Health Sciences, Koto-ku, Tokyo, Japan
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26
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Ji K, Wang Y, Du L, Xu C, Liu Y, He N, Wang J, Liu Q. Research Progress on the Biological Effects of Low-Dose Radiation in China. Dose Response 2019; 17:1559325819833488. [PMID: 30833876 PMCID: PMC6393828 DOI: 10.1177/1559325819833488] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 12/19/2018] [Accepted: 12/29/2018] [Indexed: 01/07/2023] Open
Abstract
Human are exposed to ionizing radiation from natural and artificial sources, which consequently poses a possible risk to human health. However, accumulating evidence indicates that the biological effects of low-dose radiation (LDR) are different from those of high-dose radiation (HDR). Low-dose radiation–induced hormesis has been extensively observed in different biological systems, including immunological and hematopoietic systems. Adaptive responses in response to LDR that can induce cellular resistance to genotoxic effects from subsequent exposure to HDR have also been described and researched. Bystander effects, another type of biological effect induced by LDR, have been shown to widely occur in many cell types. Furthermore, the influence of LDR-induced biological effects on certain diseases, such as cancer and diabetes, has also attracted the interest of researchers. Many studies have suggested that LDR has the potential antitumor and antidiabetic complications effects. In addition, the researches on whether LDR could induce stochastic effects were also debated. Studies on the biological effects of LDR in China started in 1970s and considerable progress has been made since. In the present article, we provide an overview of the research progress on the biological effects of LDR in China.
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Affiliation(s)
- Kaihua Ji
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Department of Radiobiology, Institute of Radiation Medicine of Chinese Academy of Medical Science & Pecking Union Medical College, Tianjin, PR China
| | - Yan Wang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Department of Radiobiology, Institute of Radiation Medicine of Chinese Academy of Medical Science & Pecking Union Medical College, Tianjin, PR China
| | - Liqing Du
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Department of Radiobiology, Institute of Radiation Medicine of Chinese Academy of Medical Science & Pecking Union Medical College, Tianjin, PR China
| | - Chang Xu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Department of Radiobiology, Institute of Radiation Medicine of Chinese Academy of Medical Science & Pecking Union Medical College, Tianjin, PR China
| | - Yang Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Department of Radiobiology, Institute of Radiation Medicine of Chinese Academy of Medical Science & Pecking Union Medical College, Tianjin, PR China
| | - Ningning He
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Department of Radiobiology, Institute of Radiation Medicine of Chinese Academy of Medical Science & Pecking Union Medical College, Tianjin, PR China
| | - Jinhan Wang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Department of Radiobiology, Institute of Radiation Medicine of Chinese Academy of Medical Science & Pecking Union Medical College, Tianjin, PR China
| | - Qiang Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Department of Radiobiology, Institute of Radiation Medicine of Chinese Academy of Medical Science & Pecking Union Medical College, Tianjin, PR China
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27
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Fractionated whole body gamma irradiation modulates the hepatic response in type II diabetes of high fat diet model rats. Mol Biol Rep 2019; 46:2273-2283. [PMID: 30747384 DOI: 10.1007/s11033-019-04681-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 02/07/2019] [Indexed: 10/27/2022]
Abstract
HFD animals were exposed to a low rate of different fractionated whole body gamma irradiation doses (0.5, 1 and 2 Gy, three fractions per week for two consecutive months) and the expression of certain genes involved in type 2 diabetes mellitus (T2DM) in livers and brains of HFD Wistar rats was investigated. Additionally, levels of diabetes-related proteins encoded by the studied genes were analyzed. Results indicated that mRNA level of incretin glucagon like peptite-1 receptor (GLP-1R) was augmented in livers and brains exposed to 1 and 2 Gy doses. Moreover, the mitochondrial uncoupling proteins 2 and 3 (UCP2/3) expressions in animals fed on HFD compared to those fed on normal chow diet were significantly increased at all applied doses. GLP-1R and UCP3 protein levels were up regulated in livers. Total protein content increased at 0.5 and 1 Gy gamma irradiation exposure and returned to its normal level at 2 Gy dose. Results could be an indicator of type 2 diabetes delayed development during irradiation exposure and support the importance of GLP-1R as a target gene in radiotherapy against T2DM and its chronic complications. A new hypothesis of brain-liver and intestine interface is speculated by which an increase in the hepatic GLP-1R is influenced by the effect of fractionated whole body gamma irradiation.
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28
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Treviño S, González-Vergara E. Metformin-decavanadate treatment ameliorates hyperglycemia and redox balance of the liver and muscle in a rat model of alloxan-induced diabetes. NEW J CHEM 2019. [DOI: 10.1039/c9nj02460c] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MetfDeca treatment ameliorate glucose and insulin levels, and reduce the levels of oxidized glutathione, reactive oxygen species, malondialdehyde, and 4-hydroxyalkenal; the superoxide and catalase activities, and glutathione levels were regulated.
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Affiliation(s)
- Samuel Treviño
- Facultad de Ciencias Químicas
- Benemérita Universidad Autónoma de Puebla
- Puebla
- Mexico
| | - Enrique González-Vergara
- Laboratorio de Bioinorgánica Aplicada
- Centro de Química ICUAP
- Benemérita Universidad Autónoma de Puebla
- Puebla
- Mexico
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29
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Zhang L, Liu Y, Ke Y, Liu Y, Luo X, Li C, Zhang Z, Liu A, Shen L, Chen H, Hu B, Wu H, Wu W, Lin D, Li S. Antidiabetic activity of polysaccharides from Suillellus luridus in streptozotocin-induced diabetic mice. Int J Biol Macromol 2018; 119:134-140. [DOI: 10.1016/j.ijbiomac.2018.07.109] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/15/2018] [Accepted: 07/17/2018] [Indexed: 01/06/2023]
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30
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Vaiserman A, Koliada A, Zabuga O, Socol Y. Health Impacts of Low-Dose Ionizing Radiation: Current Scientific Debates and Regulatory Issues. Dose Response 2018; 16:1559325818796331. [PMID: 30263019 PMCID: PMC6149023 DOI: 10.1177/1559325818796331] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/30/2018] [Accepted: 07/31/2018] [Indexed: 12/31/2022] Open
Abstract
Health impacts of low-dose ionizing radiation are significant in important fields such as X-ray imaging, radiation therapy, nuclear power, and others. However, all existing and potential applications are currently challenged by public concerns and regulatory restrictions. We aimed to assess the validity of the linear no-threshold (LNT) model of radiation damage, which is the basis of current regulation, and to assess the justification for this regulation. We have conducted an extensive search in PubMed. Special attention has been given to papers cited in comprehensive reviews of the United States (2006) and French (2005) Academies of Sciences and in the United Nations Scientific Committee on Atomic Radiation 2016 report. Epidemiological data provide essentially no evidence for detrimental health effects below 100 mSv, and several studies suggest beneficial (hormetic) effects. Equally significant, many studies with in vitro and in animal models demonstrate that several mechanisms initiated by low-dose radiation have beneficial effects. Overall, although probably not yet proven to be untrue, LNT has certainly not been proven to be true. At this point, taking into account the high price tag (in both economic and human terms) borne by the LNT-inspired regulation, there is little doubt that the present regulatory burden should be reduced.
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31
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Thomas AA, Feng B, Chakrabarti S. ANRIL regulates production of extracellular matrix proteins and vasoactive factors in diabetic complications. Am J Physiol Endocrinol Metab 2018; 314:E191-E200. [PMID: 29118015 DOI: 10.1152/ajpendo.00268.2017] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
noncoding RNAs (lncRNAs) have gained widespread interest due to their prevailing presence in various diseases. lncRNA ANRIL (a. k. a. CDKN2B-AS1) is located on human chromosome 9 (p21.3) and transcribed in opposite direction to the INK4b-ARF-INK4a gene cluster. It has been identified as a highly susceptible region for diseases such as coronary artery diseases and type 2 diabetes. Here, we explored its regulatory role in diabetic nephropathy (DN) and diabetic cardiomyopathy (DCM) in association with epigenetic modifiers p300 and polycomb repressive complex 2 (PRC2) complex. We used an ANRIL-knockout (ANRILKO) mouse model for this study. The wild-type and ANRILKO animals with or without streptozotocin-induced diabetes were monitored for 2 min. At the end of the time point, urine and tissues were collected. The tissues were measured for fibronectin (FN), type IV collagen (Col1α4), and VEGF mRNA and protein expressions. Renal function was determined by the measurement of 24-h urine volume and albumin/creatinine ratio at euthanasia. Renal and cardiac structures were investigated using periodic acid-Schiff stain and/or immunohistochemical analysis. Elevated expressions of extracellular matrix (ECM) proteins were prevented in ANRILKO diabetic animals. Furthermore, ANRILKO had a protective effect on diabetic mouse kidneys, as evidenced by lowering of urine volume and urine albumin levels in comparison with the wild-type diabetic animals. These alterations regulated by ANRIL may be mediated by p300 and enhancer of zeste 2 (EZH2) of the PRC2 complex. Our study concludes that ANRIL regulates functional and structural alterations in the kidneys and hearts in diabetes through controlling the expressions of ECM proteins and VEGF.
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MESH Headings
- Animals
- Diabetes Complications/genetics
- Diabetes Complications/metabolism
- Diabetes Complications/pathology
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/metabolism
- Disease Models, Animal
- Extracellular Matrix Proteins/metabolism
- Female
- Kidney/metabolism
- Kidney/pathology
- Male
- Mice
- Mice, Knockout
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/physiology
- Vascular Endothelial Growth Factor A/genetics
- Vascular Endothelial Growth Factor A/metabolism
- Vasoconstrictor Agents/metabolism
- Vasodilator Agents/metabolism
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Affiliation(s)
- Anu Alice Thomas
- Department of Pathology and Laboratory Medicine, Western University , London, Ontario , Canada
| | - Biao Feng
- Department of Pathology and Laboratory Medicine, Western University , London, Ontario , Canada
| | - Subrata Chakrabarti
- Department of Pathology and Laboratory Medicine, Western University , London, Ontario , Canada
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Yang H, Feng A, Lin S, Yu L, Lin X, Yan X, Lu X, Zhang C. Fibroblast growth factor-21 prevents diabetic cardiomyopathy via AMPK-mediated antioxidation and lipid-lowering effects in the heart. Cell Death Dis 2018; 9:227. [PMID: 29445083 PMCID: PMC5833682 DOI: 10.1038/s41419-018-0307-5] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 12/29/2017] [Accepted: 01/04/2018] [Indexed: 12/25/2022]
Abstract
Our previous studies showed that both exogenous and endogenous FGF21 inhibited cardiac apoptosis at the early stage of type 1 diabetes. Whether FGF21 induces preventive effect on type 2 diabetes-induced cardiomyopathy was investigated in the present study. High-fat-diet/streptozotocin-induced type 2 diabetes was established in both wild-type (WT) and FGF21-knockout (FGF21-KO) mice followed by treating with FGF21 for 4 months. Diabetic cardiomyopathy (DCM) was diagnosed by significant cardiac dysfunction, remodeling, and cardiac lipid accumulation associated with increased apoptosis, inflammation, and oxidative stress, which was aggravated in FGF21-KO mice. However, the cardiac damage above was prevented by administration of FGF21. Further studies demonstrated that the metabolic regulating effect of FGF21 is not enough, contributing to FGF21-induced significant cardiac protection under diabetic conditions. Therefore, other protective mechanisms must exist. The in vivo cardiac damage was mimicked in primary neonatal or adult mouse cardiomyocytes treated with HG/Pal, which was inhibited by FGF21 treatment. Knockdown of AMPKα1/2, AKT2, or NRF2 with their siRNAs revealed that FGF21 protected cardiomyocytes from HG/Pal partially via upregulating AMPK–AKT2–NRF2-mediated antioxidative pathway. Additionally, knockdown of AMPK suppressed fatty acid β-oxidation via inhibition of ACC–CPT-1 pathway. And, inhibition of fatty acid β-oxidation partially blocked FGF21-induced protection in cardiomyocytes. Further, in vitro and in vivo studies indicated that FGF21-induced cardiac protection against type 2 diabetes was mainly attributed to lipotoxicity rather than glucose toxicity. These results demonstrate that FGF21 functions physiologically and pharmacologically to prevent type 2 diabetic lipotoxicity-induced cardiomyopathy through activation of both AMPK–AKT2–NRF2-mediated antioxidative pathway and AMPK–ACC–CPT-1-mediated lipid-lowering effect in the heart.
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Affiliation(s)
- Hong Yang
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Anyun Feng
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Sundong Lin
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China.,School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Lechu Yu
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiufei Lin
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China.,School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China.,Wenzhou Biomedical Innovation Center, Wenzhou, China
| | - Xiaoqing Yan
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China.,School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China.,Wenzhou Biomedical Innovation Center, Wenzhou, China
| | - Xuemian Lu
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
| | - Chi Zhang
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China. .,Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China. .,School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China. .,Wenzhou Biomedical Innovation Center, Wenzhou, China.
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Khalil A, Omran H. The role of gut in type 2 diabetes mellitus during whole body gamma irradiation in high-fat diet Wistar rats. Int J Radiat Biol 2017; 94:137-149. [PMID: 29252073 DOI: 10.1080/09553002.2018.1419300] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
PURPOSE The effects of a low rate (100 mGy/min) fractionated whole body gamma irradiation (FWBGI) at different doses were assessed using a real-time PCR technique on the expression of some target genes implicated in the development of type 2 diabetes mellitus in high-fat diet (HFD) Wistar rats. METHOD HFD Wistar rats were exposed to different doses (12, 24 and 48 Gy) divided into 24 fractions (three times a week for two months), thus, the daily doses were 0.5, 1, 2 Gy, respectively. Total RNA was extracted and the expression of target genes was measured in the four intestinal segments (duodenum, jejunum, ileum and colon). RESULTS The pre-diabetic state already induced by HFD was found to be improved by irradiation exposure. This irradiation effect occurs mainly via altered anti-diabetic gene expressions (mRNA and protein levels) of the incretin glucagon-like peptide-1 (GLP-1) overall bowel segments except the colon which has its own specific response to irradiation exposure by the induction of the insulin receptor substrate 4 (IRS-4) and the uncoupling protein 3 (UCP3). CONCLUSIONS Results could be of great importance suggesting for the first time, a protective role for FWBGI on HFD animal models by increasing GLP-1 and UCP3 levels.
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Affiliation(s)
- Ayman Khalil
- a Department of Radiation Medicine, Human Nutrition Laboratory , Atomic Energy Commission of Syria (AECS) , Damascus , Syria
| | - Hasan Omran
- a Department of Radiation Medicine, Human Nutrition Laboratory , Atomic Energy Commission of Syria (AECS) , Damascus , Syria
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Ebrahimian TG, Beugnies L, Surette J, Priest N, Gueguen Y, Gloaguen C, Benderitter M, Jourdain JR, Tack K. Chronic Exposure to External Low-Dose Gamma Radiation Induces an Increase in Anti-inflammatory and Anti-oxidative Parameters Resulting in Atherosclerotic Plaque Size Reduction in ApoE -/- Mice. Radiat Res 2017; 189:187-196. [PMID: 29227739 DOI: 10.1667/rr14823.1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Populations living in radiation-contaminated territories, such as Chernobyl and Fukushima, are chronically exposed to external gamma radiation and internal radionuclide contamination due to the large amount of 137Cs released in the environment. The effect of chronic low-dose exposure on the development of cardiovascular diseases remains unclear. Previously reported studies have shown that low-dose radiation exposure could lead to discrepancies according to dose rate. In this study, we examined the effect of very low-dose and dose-rate chronic external exposure on atherosclerosis development. ApoE-/- mice were chronically irradiated with a gamma source for 8 months at two different dose rates, 12 and 28 μGy/h, equivalent to dose rates measured in contaminated territories, with a cumulative dose of 67 and 157 mGy, respectively. We evaluated plaque size and phenotype, inflammatory profile and oxidative stress status. The results of this study showed a decrease in plaque sizes and an increase in collagen content in ApoE-/- mice exposed to 28 μGy/h for 8 months compared to nonexposed animals. The plaque phenotype was associated with an increase in anti-inflammatory and anti-oxidative gene expression. These results suggest that chronic low-dose gamma irradiation induces an upregulation of organism defenses leading to a decrease in inflammation and plaque size. To our knowledge, this is the first study to describe the possible effect of chronic external very low-dose ionizing radiation exposure for 8 months. This work could help to identify the potential existence of a dose threshold, below that which harmful effects are not exhibited and beneficial effects are potentially observed. Furthermore, these findings permit consideration of the importance of dose rate in radiation protection.
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Affiliation(s)
- T G Ebrahimian
- a Institut de Radioprotection et de Sureté Nucléaire (IRSN), PRP-HOM, SRBE, Fontenay-aux-Roses, France; and
| | - L Beugnies
- a Institut de Radioprotection et de Sureté Nucléaire (IRSN), PRP-HOM, SRBE, Fontenay-aux-Roses, France; and
| | - J Surette
- b Radiobiology and Health, Canadian Nuclear Laboratories, Chalk-River, Ontario K0J 1J0, Canada
| | - N Priest
- b Radiobiology and Health, Canadian Nuclear Laboratories, Chalk-River, Ontario K0J 1J0, Canada
| | - Y Gueguen
- a Institut de Radioprotection et de Sureté Nucléaire (IRSN), PRP-HOM, SRBE, Fontenay-aux-Roses, France; and
| | - C Gloaguen
- a Institut de Radioprotection et de Sureté Nucléaire (IRSN), PRP-HOM, SRBE, Fontenay-aux-Roses, France; and
| | - M Benderitter
- a Institut de Radioprotection et de Sureté Nucléaire (IRSN), PRP-HOM, SRBE, Fontenay-aux-Roses, France; and
| | - J R Jourdain
- a Institut de Radioprotection et de Sureté Nucléaire (IRSN), PRP-HOM, SRBE, Fontenay-aux-Roses, France; and
| | - K Tack
- a Institut de Radioprotection et de Sureté Nucléaire (IRSN), PRP-HOM, SRBE, Fontenay-aux-Roses, France; and
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Anti-diabetic effects of Inonotus obliquus polysaccharides in streptozotocin-induced type 2 diabetic mice and potential mechanism via PI3K-Akt signal pathway. Biomed Pharmacother 2017; 95:1669-1677. [DOI: 10.1016/j.biopha.2017.09.104] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 09/14/2017] [Accepted: 09/19/2017] [Indexed: 12/15/2022] Open
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Jiang B, Zhang Y, She C, Zhao J, Zhou K, Zuo Z, Zhou X, Wang P, Dong Q. X-ray irradiation has positive effects for the recovery of peripheral nerve injury maybe through the vascular smooth muscle contraction signaling pathway. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 54:177-183. [PMID: 28755625 DOI: 10.1016/j.etap.2017.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 07/17/2017] [Accepted: 07/18/2017] [Indexed: 06/07/2023]
Abstract
INTRODUCTION It is well known that moderate to high doses of ionizing radiation have a toxic effect on the organism. However, there are few experimental studies on the mechanisms of LDR ionizing radiation on nerve regeneration after peripheral nerve injury. METHODS We established the rats' peripheral nerve injury model via repaired Peripheral nerve injury nerve, vascular endothelial growth factor a and Growth associated protein-43 were detected from different treatment groups. We performed transcriptome sequencing focusing on investigating the differentially expressed genes and gene functions between the control group and 1Gy group. Sequencing was done by using high-throughput RNA-sequencing (RNA-seq) technologies. RESULTS The results showed the 1Gy group to be the most effective promoting repair. RNA-sequencing identified 619 differently expressed genes between control and treated groups. A Gene Ontology analysis of the differentially expressed genes revealed enrichment in the functional pathways. Among them, candidate genes associated with nerve repair were identified. DISCUSSION Pathways involved in cell-substrate adhesion, vascular smooth muscle contraction and cell adhesion molecule signaling may be involved in recovery from peripheral nerve injury.
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Affiliation(s)
- Bo Jiang
- Department of Hand and Foot Surgery, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, Jiangsu 215004, China
| | - Yong Zhang
- Department of Hand and Foot Surgery, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, Jiangsu 215004, China
| | - Chang She
- Department of Hand and Foot Surgery, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, Jiangsu 215004, China; Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, Jiangsu 215004, China.
| | - Jiaju Zhao
- Department of Hand and Foot Surgery, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, Jiangsu 215004, China
| | - Kailong Zhou
- Department of Hand and Foot Surgery, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, Jiangsu 215004, China
| | - Zhicheng Zuo
- Department of Hand and Foot Surgery, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, Jiangsu 215004, China
| | - Xiaozhong Zhou
- Department of Hand and Foot Surgery, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, Jiangsu 215004, China; Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, Jiangsu 215004, China.
| | - Peiji Wang
- Department of Hand and Foot Surgery, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, Jiangsu 215004, China
| | - Qirong Dong
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, Jiangsu 215004, China.
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Janiak MK, Wincenciak M, Cheda A, Nowosielska EM, Calabrese EJ. Cancer immunotherapy: how low-level ionizing radiation can play a key role. Cancer Immunol Immunother 2017; 66:819-832. [PMID: 28361232 PMCID: PMC5489643 DOI: 10.1007/s00262-017-1993-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 03/22/2017] [Indexed: 12/17/2022]
Abstract
The cancer immunoediting hypothesis assumes that the immune system guards the host against the incipient cancer, but also "edits" the immunogenicity of surviving neoplastic cells and supports remodeling of tumor microenvironment towards an immunosuppressive and pro-neoplastic state. Local irradiation of tumors during standard radiotherapy, by killing neoplastic cells and generating inflammation, stimulates anti-cancer immunity and/or partially reverses cancer-promoting immunosuppression. These effects are induced by moderate (0.1-2.0 Gy) or high (>2 Gy) doses of ionizing radiation which can also harm normal tissues, impede immune functions, and increase the risk of secondary neoplasms. In contrast, such complications do not occur with exposures to low doses (≤0.1 Gy for acute irradiation or ≤0.1 mGy/min dose rate for chronic exposures) of low-LET ionizing radiation. Furthermore, considerable evidence indicates that such low-level radiation (LLR) exposures retard the development of neoplasms in humans and experimental animals. Here, we review immunosuppressive mechanisms induced by growing tumors as well as immunomodulatory effects of LLR evidently or likely associated with cancer-inhibiting outcomes of such exposures. We also offer suggestions how LLR may restore and/or stimulate effective anti-tumor immunity during the more advanced stages of carcinogenesis. We postulate that, based on epidemiological and experimental data amassed over the last few decades, whole- or half-body irradiations with LLR should be systematically examined for its potential to be a viable immunotherapeutic treatment option for patients with systemic cancer.
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Affiliation(s)
- Marek K Janiak
- Department of Radiobiology and Radiation Protection, Military Institute of Hygiene and Epidemiology, 4 Kozielska St., 01-163, Warsaw, Poland.
| | - Marta Wincenciak
- Department of Radiobiology and Radiation Protection, Military Institute of Hygiene and Epidemiology, 4 Kozielska St., 01-163, Warsaw, Poland
| | - Aneta Cheda
- Department of Radiobiology and Radiation Protection, Military Institute of Hygiene and Epidemiology, 4 Kozielska St., 01-163, Warsaw, Poland
| | - Ewa M Nowosielska
- Department of Radiobiology and Radiation Protection, Military Institute of Hygiene and Epidemiology, 4 Kozielska St., 01-163, Warsaw, Poland
| | - Edward J Calabrese
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, 01003, USA
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Cui S, Zhu Y, Du J, Khan MN, Wang B, Wei J, Cheng JW, Gordon JR, Mu Y, Li F. CXCL8 Antagonist Improves Diabetic Nephropathy in Male Mice With Diabetes and Attenuates High Glucose-Induced Mesangial Injury. Endocrinology 2017; 158:1671-1684. [PMID: 28387853 DOI: 10.1210/en.2016-1781] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 03/31/2017] [Indexed: 12/20/2022]
Abstract
Inflammation is recognized as a crucial contribution to diabetic nephropathy (DN). CXCL8 binds to its CXC chemokine receptors (CXCR1 and CXCR2) for recruiting neutrophil infiltration and initiates tissue inflammation. Therefore, we explored the effect of CXCR1 and CXCR2 inhibition on DN. This was achieved by CXCL8(3-72)K11R/G31P (G31P), an antagonist of CXCL8 that has exhibited therapeutic efficacy in inflammatory diseases and malignancies. In this study, we found that renal leukocyte accumulation and rapid increases of CXCL8 occurred in high-fat diet/streptozocin-induced diabetic mice. G31P effectively reduced urine volume, urine albumin/creatinine ratio, blood urea nitrogen, and creatinine clearance rate in mice with diabetes. In addition, renal histopathologic changes including mesangial expansion, glomerulosclerosis, and extracellular matrix deposition were partially moderated in G31P-treated diabetic mice. Furthermore, G31P attenuated renal inflammation and renal fibrosis of diabetic mice by inhibiting proinflammatory and profibrotic elements. G31P also inhibited high glucose-induced inflammatory and fibrotic factor upregulation in human renal mesangial cells. At the molecular level, G31P inhibited activation of CXCR1/2 downstream signaling JAK2/STAT3 and ERK1/2 pathways in in vitro and in vivo experiments. Our results suggest blockade of CXCR1/2 by G31P could confer renoprotective effects that offer potential therapeutic opportunities in DN.
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Affiliation(s)
- Siyuan Cui
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
- Department of Endocrinology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
| | - Yujie Zhu
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
| | - Jianling Du
- Department of Endocrinology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
| | - Muhammad Noman Khan
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
| | - Bing Wang
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
| | - Jing Wei
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
| | - Jya-Wei Cheng
- Institute of Biotechnology, Department of Life Science, National Tsing Hua University, 999079 Hsinchu, Taiwan
| | - John R Gordon
- Division of Respirology, Critical Care and Sleep Medicine, Royal University Hospital, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Yutian Mu
- College of Biology Science, China Agricultural University, Beijing 100000, China
| | - Fang Li
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
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Glastras SJ, Chen H, Tsang M, Teh R, McGrath RT, Zaky A, Chen J, Wong MG, Pollock CA, Saad S. The renal consequences of maternal obesity in offspring are overwhelmed by postnatal high fat diet. PLoS One 2017; 12:e0172644. [PMID: 28225809 PMCID: PMC5321436 DOI: 10.1371/journal.pone.0172644] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 02/07/2017] [Indexed: 12/26/2022] Open
Abstract
AIMS/HYPOTHESIS Developmental programming induced by maternal obesity influences the development of chronic disease in offspring. In the present study, we aimed to determine whether maternal obesity exaggerates obesity-related kidney disease. METHODS Female C57BL/6 mice were fed high-fat diet (HFD) for six weeks prior to mating, during gestation and lactation. Male offspring were weaned to normal chow or HFD. At postnatal Week 8, HFD-fed offspring were administered one dose streptozotocin (STZ, 100 mg/kg i.p.) or vehicle control. Metabolic parameters and renal functional and structural changes were observed at postnatal Week 32. RESULTS HFD-fed offspring had increased adiposity, glucose intolerance and hyperlipidaemia, associated with increased albuminuria and serum creatinine levels. Their kidneys displayed structural changes with increased levels of fibrotic, inflammatory and oxidative stress markers. STZ administration did not potentiate the renal effects of HFD. Though maternal obesity had a sustained effect on serum creatinine and oxidative stress markers in lean offspring, the renal consequences of maternal obesity were overwhelmed by the powerful effect of diet-induced obesity. CONCLUSION Maternal obesity portends significant risks for metabolic and renal health in adult offspring. However, diet-induced obesity is an overwhelming and potent stimulus for the development of CKD that is not potentiated by maternal obesity.
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Affiliation(s)
- Sarah J. Glastras
- Department of Medicine, Kolling Institute, University of Sydney, Sydney, Australia
- Department of Diabetes, Endocrinology and Metabolism, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Hui Chen
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, Australia
| | - Michael Tsang
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, Australia
| | - Rachel Teh
- Department of Medicine, Kolling Institute, University of Sydney, Sydney, Australia
| | - Rachel T. McGrath
- Department of Medicine, Kolling Institute, University of Sydney, Sydney, Australia
- Department of Diabetes, Endocrinology and Metabolism, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Amgad Zaky
- Department of Medicine, Kolling Institute, University of Sydney, Sydney, Australia
| | - Jason Chen
- Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Muh Geot Wong
- Department of Medicine, Kolling Institute, University of Sydney, Sydney, Australia
| | - Carol A. Pollock
- Department of Medicine, Kolling Institute, University of Sydney, Sydney, Australia
| | - Sonia Saad
- Department of Medicine, Kolling Institute, University of Sydney, Sydney, Australia
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Hall J, Jeggo PA, West C, Gomolka M, Quintens R, Badie C, Laurent O, Aerts A, Anastasov N, Azimzadeh O, Azizova T, Baatout S, Baselet B, Benotmane MA, Blanchardon E, Guéguen Y, Haghdoost S, Harms-Ringhdahl M, Hess J, Kreuzer M, Laurier D, Macaeva E, Manning G, Pernot E, Ravanat JL, Sabatier L, Tack K, Tapio S, Zitzelsberger H, Cardis E. Ionizing radiation biomarkers in epidemiological studies - An update. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2017; 771:59-84. [PMID: 28342453 DOI: 10.1016/j.mrrev.2017.01.001] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 01/09/2017] [Indexed: 01/13/2023]
Abstract
Recent epidemiology studies highlighted the detrimental health effects of exposure to low dose and low dose rate ionizing radiation (IR): nuclear industry workers studies have shown increased leukaemia and solid tumour risks following cumulative doses of <100mSv and dose rates of <10mGy per year; paediatric patients studies have reported increased leukaemia and brain tumours risks after doses of 30-60mGy from computed tomography scans. Questions arise, however, about the impact of even lower doses and dose rates where classical epidemiological studies have limited power but where subsets within the large cohorts are expected to have an increased risk. Further progress requires integration of biomarkers or bioassays of individual exposure, effects and susceptibility to IR. The European DoReMi (Low Dose Research towards Multidisciplinary Integration) consortium previously reviewed biomarkers for potential use in IR epidemiological studies. Given the increased mechanistic understanding of responses to low dose radiation the current review provides an update covering technical advances and recent studies. A key issue identified is deciding which biomarkers to progress. A roadmap is provided for biomarker development from discovery to implementation and used to summarise the current status of proposed biomarkers for epidemiological studies. Most potential biomarkers remain at the discovery stage and for some there is sufficient evidence that further development is not warranted. One biomarker identified in the final stages of development and as a priority for further research is radiation specific mRNA transcript profiles.
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Affiliation(s)
- Janet Hall
- Centre de Recherche en Cancérologie de Lyon, INSERM 1052, CNRS 5286, Univ Lyon, Université Claude Bernard, Lyon 1, Lyon, F-69424, France.
| | - Penny A Jeggo
- Genome Damage and Stability Centre, School of Life Sciences, University of Sussex, Falmer, Brighton, BN1 9RQ, United Kingdom
| | - Catharine West
- Translational Radiobiology Group, Institute of Cancer Sciences, The University of Manchester, Manchester Academic Health Science Centre, Christie Hospital, Manchester, M20 4BX, United Kingdom
| | - Maria Gomolka
- Federal Office for Radiation Protection, Department of Radiation Protection and Health, D-85764 Neuherberg, Germany
| | - Roel Quintens
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium
| | - Christophe Badie
- Cancer Mechanisms and Biomarkers group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, United Kingdom
| | - Olivier Laurent
- Institut de Radioprotection et de Sûreté Nucléaire, F-92260 Fontenay-aux-Roses, France
| | - An Aerts
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium
| | - Nataša Anastasov
- Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, D-85764 Neuherberg, Germany
| | - Omid Azimzadeh
- Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, D-85764 Neuherberg, Germany
| | - Tamara Azizova
- Southern Urals Biophysics Institute, Clinical Department, Ozyorsk, Russia
| | - Sarah Baatout
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium; Cell Systems and Imaging Research Group, Department of Molecular Biotechnology, Ghent University, B-9000 Ghent, Belgium
| | - Bjorn Baselet
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium; Pole of Pharmacology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, B-1200 Brussels, Belgium
| | - Mohammed A Benotmane
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium
| | - Eric Blanchardon
- Institut de Radioprotection et de Sûreté Nucléaire, F-92260 Fontenay-aux-Roses, France
| | - Yann Guéguen
- Institut de Radioprotection et de Sûreté Nucléaire, F-92260 Fontenay-aux-Roses, France
| | - Siamak Haghdoost
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE 106 91 Stockholm, Sweden
| | - Mats Harms-Ringhdahl
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE 106 91 Stockholm, Sweden
| | - Julia Hess
- Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, D-85764 Neuherberg, Germany
| | - Michaela Kreuzer
- Federal Office for Radiation Protection, Department of Radiation Protection and Health, D-85764 Neuherberg, Germany
| | - Dominique Laurier
- Institut de Radioprotection et de Sûreté Nucléaire, F-92260 Fontenay-aux-Roses, France
| | - Ellina Macaeva
- Radiobiology Unit, Belgian Nuclear Research Centre, SCK·CEN, B-2400 Mol, Belgium; Cell Systems and Imaging Research Group, Department of Molecular Biotechnology, Ghent University, B-9000 Ghent, Belgium
| | - Grainne Manning
- Cancer Mechanisms and Biomarkers group, Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, United Kingdom
| | - Eileen Pernot
- INSERM U897, Université de Bordeaux, F-33076 Bordeaux cedex, France
| | - Jean-Luc Ravanat
- Laboratoire des Lésions des Acides Nucléiques, Univ. Grenoble Alpes, INAC-SCIB, F-38000 Grenoble, France; Commissariat à l'Énergie Atomique, INAC-SyMMES, F-38000 Grenoble, France
| | - Laure Sabatier
- Commissariat à l'Énergie Atomique, BP6, F-92265 Fontenay-aux-Roses, France
| | - Karine Tack
- Institut de Radioprotection et de Sûreté Nucléaire, F-92260 Fontenay-aux-Roses, France
| | - Soile Tapio
- Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, D-85764 Neuherberg, Germany
| | - Horst Zitzelsberger
- Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Institute of Radiation Biology, D-85764 Neuherberg, Germany
| | - Elisabeth Cardis
- Barcelona Institute of Global Health (ISGlobal), Centre for Research in Environmental Epidemiology, Radiation Programme, Barcelona Biomedical Research Park, 08003 Barcelona, Spain; Universitat Pompeu Fabra (UPF) (MTD formerly), Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.
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Fernandes MR, Lima NVD, Rezende KS, Santos ICM, Silva IS, Guimarães RDCA. Animal models of obesity in rodents. An integrative review. Acta Cir Bras 2016; 31:840-844. [DOI: 10.1590/s0102-865020160120000010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 11/14/2016] [Indexed: 11/22/2022] Open
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Chou YJ, Kan WC, Chang CM, Peng YJ, Wang HY, Yu WC, Cheng YH, Jhang YR, Liu HW, Chuu JJ. Renal Protective Effects of Low Molecular Weight of Inonotus obliquus Polysaccharide (LIOP) on HFD/STZ-Induced Nephropathy in Mice. Int J Mol Sci 2016; 17:ijms17091535. [PMID: 27649140 PMCID: PMC5037810 DOI: 10.3390/ijms17091535] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/31/2016] [Accepted: 09/05/2016] [Indexed: 12/20/2022] Open
Abstract
Diabetic nephropathy (DN) is the leading cause of end-stage renal disease in diabetes mellitus. Oxidative stress, insulin resistance and pro-inflammatory cytokines have been shown to play an important role in pathogeneses of renal damage on type 2 diabetes mellitus (DM). Inonotus obliquus (IO) is a white rot fungus that belongs to the family Hymenochaetaceae; it has been used as an edible mushroom and exhibits many biological activities including anti-tumor, anti-oxidant, anti-inflammatory and anti-hyperglycemic properties. Especially the water-soluble Inonotus obliquus polysaccharides (IOPs) have been previously reported to significantly inhibit LPS-induced inflammatory cytokines in mice and protect from streptozotocin (STZ)-induced diabetic rats. In order to identify the nephroprotective effects of low molecular weight of IOP fraction (LIOP), from the fruiting bodies of Inonotus obliquus, high-fat diet (HFD) plus STZ-induced type 2-like diabetic nephropathy C57BL/6 mice were investigated in this study. Our data showed that eight weeks of administration of 10–100 kDa, LIOP (300 mg/kg) had progressively increased their sensitivity to glucose (less insulin tolerance), reduced triglyceride levels, elevated the HDL/LDL ratio and decreased urinary albumin/creatinine ratio(ACR) compared to the control group. By pathological and immunohistochemical examinations, it was indicated that LIOP can restore the integrity of the glomerular capsules and increase the numbers of glomerular mesangial cells, associated with decreased expression of TGF-β on renal cortex in mice. Consistently, three days of LIOP (100 μg/mL) incubation also provided protection against STZ + AGEs-induced glucotoxicity in renal tubular cells (LLC-PK1), while the levels of NF-κB and TGF-β expression significantly decreased in a dose-dependent manner. Our findings demonstrate that LIOP treatment could ameliorate glucolipotoxicity-induced renal fibrosis, possibly partly via the inhibition of NF-κB/TGF-β1 signaling pathway in diabetic nephropathy mice.
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Affiliation(s)
- Yen-Jung Chou
- Department of Traditional Chinese Medicine, En Chu Kong Hospital, New Taipei City 237, Taiwan.
| | - Wei-Chih Kan
- Division of Nephrology, Department of Medicine; Chi-Mei Medical Center, Tainan 710, Taiwan.
- Department of Biological Science and Technology, Chung Hwa University of Medical Technology, Tainan 717, Taiwan.
| | - Chieh-Min Chang
- Department of Traditional Chinese Medicine, En Chu Kong Hospital, New Taipei City 237, Taiwan.
| | - Yi-Jen Peng
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan.
| | - Hsien-Yi Wang
- Division of Nephrology, Department of Medicine; Chi-Mei Medical Center, Tainan 710, Taiwan.
- Department of Sports Management, College of Leisure and Recreation Management, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan.
| | - Wen-Chun Yu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei 114, Taiwan.
| | - Yu-Hsuan Cheng
- Institute of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan.
| | - Yu-Rou Jhang
- Institute of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan.
| | - Hsia-Wei Liu
- Department of Life Science, Fu Jen Catholic University, New Taipei City 242, Taiwan.
| | - Jiunn-Jye Chuu
- Institute of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan.
- Pharmacy, Wei Gong Memorial Hospital, Miaoli 351, Taiwan.
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Mouse Models of Diabetes, Obesity and Related Kidney Disease. PLoS One 2016; 11:e0162131. [PMID: 27579698 PMCID: PMC5006968 DOI: 10.1371/journal.pone.0162131] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Accepted: 08/17/2016] [Indexed: 12/13/2022] Open
Abstract
Multiple rodent models have been used to study diabetic kidney disease (DKD). The purpose of the present study was to compare models of diabetes and obesity-induced metabolic syndrome and determine differences in renal outcomes. C57BL/6 male mice were fed either normal chow or high fat diet (HFD). At postnatal week 8, chow-fed mice were randomly assigned to low-dose streptozotocin (STZ, 55 mg/kg/day, five consecutive days) or vehicle control, whereas HFD-fed mice were given either one high-dose of STZ (100 mg/kg) or vehicle control. Intraperitoneal glucose tolerance tests were performed at Week 14, 20 and 30. Urinary albumin to creatinine ratio (ACR) and serum creatinine were measured, and renal structure was assessed using Periodic Acid Schiff (PAS) staining at Week 32. Results showed that chow-fed mice exposed to five doses of STZ resembled type 1 diabetes mellitus with a lean phenotype, hyperglycaemia, microalbuminuria and increased serum creatinine levels. Their kidneys demonstrated moderate tubular injury with evidence of tubular dilatation and glycogenated nuclear inclusion bodies. HFD-fed mice resembled metabolic syndrome as they were obese with dyslipidaemia, insulin resistance, and significantly impaired glucose tolerance. One dose STZ, in addition to HFD, did not worsen metabolic features (including fasting glucose, non esterified fatty acid, and triglyceride levels). There were significant increases in urinary ACR and serum creatinine levels, and renal structural changes were predominantly related to interstitial vacuolation and tubular dilatation in HFD-fed mice.
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Cardiorenal Involvement in Metabolic Syndrome Induced by Cola Drinking in Rats: Proinflammatory Cytokines and Impaired Antioxidative Protection. Mediators Inflamm 2016; 2016:5613056. [PMID: 27340342 PMCID: PMC4906210 DOI: 10.1155/2016/5613056] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 03/21/2016] [Accepted: 04/10/2016] [Indexed: 12/29/2022] Open
Abstract
We report experimental evidence confirming renal histopathology, proinflammatory mediators, and oxidative metabolism induced by cola drinking. Male Wistar rats drank ad libitum regular cola (C, n = 12) or tap water (W, n = 12). Measures. Body weight, nutritional data, plasma glucose, cholesterol fractions, TG, urea, creatinine, coenzyme Q10, SBP, and echocardiograms (0 mo and 6 mo). At 6 months euthanasia was performed. Kidneys were processed for histopathology and immunohistochemistry (semiquantitative). Compared with W, C rats showed (I) overweight (+8%, p < 0.05), hyperglycemia (+11%, p < 0.05), hypertriglyceridemia (2-fold, p < 0.001), higher AIP (2-fold, p < 0.01), and lower Q10 level (−55%, p < 0.05); (II) increased LV diastolic diameter (+9%, p < 0.05) and volume (systolic +24%, p < 0.05), posterior wall thinning (−8%, p < 0.05), and larger cardiac output (+24%, p < 0.05); (III) glomerulosclerosis (+21%, p < 0.05), histopathology (+13%, p < 0.05), higher tubular expression of IL-6 (7-fold, p < 0.001), and TNFα (4-fold, p < 0.001). (IV) Correlations were found for LV dimensions with IL-6 (74%, p < 0.001) and TNFα (52%, p < 0.001) and fully abolished after TG and Q10 control. Chronic cola drinking induced cardiac remodeling associated with increase in proinflammatory cytokines and renal damage. Hypertriglyceridemia and oxidative stress were key factors. Hypertriglyceridemic lipotoxicity in the context of defective antioxidant/anti-inflammatory protection due to low Q10 level might play a key role in cardiorenal disorder induced by chronic cola drinking in rats.
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Antidiabetic and Antinephritic Activities of Aqueous Extract of Cordyceps militaris Fruit Body in Diet-Streptozotocin-Induced Diabetic Sprague Dawley Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:9685257. [PMID: 27274781 PMCID: PMC4870376 DOI: 10.1155/2016/9685257] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 03/16/2016] [Accepted: 04/07/2016] [Indexed: 01/23/2023]
Abstract
Cordyceps militaris has long been used as a crude drug and folk tonic food in East Asia. The present study aims to evaluate the antidiabetic and antinephritic effects of the aqueous extract of the Cordyceps militaris fruit body (CM) in diet-streptozotocin- (STZ-) induced diabetic rats. During four weeks of continuous oral administration of CM at doses of 0.5, 1.0, and 2.0 g/kg and metformin at 100 mg/kg, the fasting blood glucose and bodyweight of each rat were monitored. Hypoglycemic effects of CM on diabetic rats were indicated by decreases in plasma glucose, food and water intake, and urine output. The hypolipidemic activity of CM was confirmed by the normalization of total cholesterol, triglycerides, and low- and high-density lipoprotein cholesterol in diabetic rats. Inhibitory effects on albuminuria, creatinine, urea nitrogen, and n-acetyl-β-d-glucosaminidase verified CM's renal protective activity in diabetic rats. Furthermore, CM exerted beneficial modulation of inflammatory factors and oxidative enzymes. Compared with untreated diabetic rats, CM decreased the expression of phosphor-AKT and phosphor-GSK-3β in the kidneys. Altogether, via attenuating oxidative stress, CM displayed antidiabetic and antinephritic activities in diet-STZ-induced diabetic rats.
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46
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Zhang F, Lin X, Yu L, Li W, Qian D, Cheng P, He L, Yang H, Zhang C. Low-dose radiation prevents type 1 diabetes-induced cardiomyopathy via activation of AKT mediated anti-apoptotic and anti-oxidant effects. J Cell Mol Med 2016; 20:1352-66. [PMID: 26991817 PMCID: PMC4929303 DOI: 10.1111/jcmm.12823] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 01/31/2016] [Indexed: 12/15/2022] Open
Abstract
We investigated whether low-dose radiation (LDR) can prevent late-stage diabetic cardiomyopathy and whether this protection is because of the induction of anti-apoptotic and anti-oxidant pathways. Streptozotocin-induced diabetic C57BL/6J mice were treated with/without whole-body LDR (12.5, 25, or 50 mGy) every 2 days. Twelve weeks after onset of diabetes, cardiomyopathy was diagnosed characterized by significant cardiac dysfunction, hypertrophy and histopathological abnormalities associated with increased oxidative stress and apoptosis, which was prevented by LDR (25 or 50 mGy only). Low-dose radiation-induced cardiac protection also associated with P53 inactivation, enhanced Nrf2 function and improved Akt activation. Next, for the mechanistic study, mouse primary cardiomyocytes were treated with high glucose (33 mmol/l) for 24 hrs and during the last 15 hrs bovine serum albumin-conjugated palmitate (62.5 μmol/l) was added into the medium to mimic diabetes, and cells were treated with LDR (25 mGy) every 6 hrs during the whole process of HG/Pal treatment. Data show that blocking Akt/MDM2/P53 or Akt/Nrf2 pathways with small interfering RNA of akt, mdm2 and nrf2 not only prevented LDR-induced anti-apoptotic and anti-oxidant effects but also prevented LDR-induced suppression on cardiomyocyte hypertrophy and fibrosis against HG/Pal. Low-dose radiation prevented diabetic cardiomyopathy by improving cardiac function and hypertrophic remodelling attributed to Akt/MDM2/P53-mediated anti-apoptotic and Akt/Nrf2-mediated anti-oxidant pathways simultaneously.
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Affiliation(s)
- Fangfang Zhang
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China.,Ruian Center of Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China
| | - Xiufei Lin
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China.,Ruian Center of Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China
| | - Lechu Yu
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China
| | - Weihua Li
- Department of Pathology, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Dingliang Qian
- Department of Inspection, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Peng Cheng
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China.,Ruian Center of Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China
| | - Luqing He
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China.,Ruian Center of Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China
| | - Hong Yang
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China
| | - Chi Zhang
- Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China.,Ruian Center of Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, China
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Ma Y, Yang Q, Chen X, Liang W, Ren Z, Ding G. c-Abl contributes to glucose-promoted apoptosis via p53 signaling pathway in podocytes. Diabetes Res Clin Pract 2016; 113:171-8. [PMID: 26810274 DOI: 10.1016/j.diabres.2015.12.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/05/2015] [Accepted: 12/26/2015] [Indexed: 02/07/2023]
Abstract
AIM To investigate the role of the non-receptor tyrosine kinase c-Abl in high glucose-induced podocyte injury and its possible signal transduction pathway. METHODS Sixteen C57BL/6 mice were randomly assigned to a group with diabetes and a normal control group. Subsequently, differentiated mouse podocytes were exposed to high-glucose conditions, and podocyte apoptosis was then assessed by flow cytometry and Hoechst 33258 staining. Western blot and immunofluorescence assay were used to measure c-Abl expression. Co-immunoprecipitation assay was used and c-Abl siRNA was applied to evaluate the interaction between c-Abl and p53. RESULTS High glucose promotes podocyte apoptosis. The c-Abl expression in podocytes was increased after exposure to high glucose, stimulating the p53 signaling pathway. Conversely, treatment with c-Abl siRNA restored high glucose-promoted podocyte apoptosis and resulted in the reduction of p53 expression. CONCLUSION c-Abl contributes to high glucose-induced podocyte apoptosis via p53 signaling pathway.
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Affiliation(s)
- Yiqiong Ma
- Division of Nephrology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan 430060, Hubei, China
| | - Qian Yang
- Division of Nephrology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan 430060, Hubei, China
| | - Xinghua Chen
- Division of Nephrology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan 430060, Hubei, China
| | - Wei Liang
- Division of Nephrology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan 430060, Hubei, China
| | - Zhilong Ren
- Division of Nephrology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan 430060, Hubei, China
| | - Guohua Ding
- Division of Nephrology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan 430060, Hubei, China.
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48
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Zhao Y, Kong C, Chen X, Wang Z, Wan Z, Jia L, Liu Q, Wang Y, Li W, Cui J, Han F, Cai L. Repetitive exposure to low-dose X-irradiation attenuates testicular apoptosis in type 2 diabetic rats, likely via Akt-mediated Nrf2 activation. Mol Cell Endocrinol 2016; 422:203-210. [PMID: 26704079 PMCID: PMC5278883 DOI: 10.1016/j.mce.2015.12.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Revised: 11/29/2015] [Accepted: 12/14/2015] [Indexed: 11/22/2022]
Abstract
To determine whether repetitive exposure to low-dose radiation (LDR) attenuates type 2 diabetes (T2DM)-induced testicular apoptotic cell death in a T2DM rat model, we examined the effects of LDR exposure on diabetic and age-matched control rats. We found that testicular apoptosis and oxidative stress levels were significantly higher in T2DM rats than in control rats. In addition, glucose metabolism-related Akt and GSK-3β function was downregulated and Akt negative regulators PTP1B and TRB3 were upregulated in the T2DM group. Superoxide dismutase (SOD) activity and catalase content were also found to be decreased in T2DM rats. These effects were partially prevented or reversed by repetitive LDR exposure. Nrf2 and its downstream genes NQO1, SOD, and catalase were significantly upregulated by repetitive exposure to LDR, suggesting that the reduction of T2DM-induced testicular apoptosis due to repetitive LDR exposure likely involves enhancement of testicular Akt-mediated glucose metabolism and anti-oxidative defense mechanisms.
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Affiliation(s)
- Yuguang Zhao
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China.
| | - Chuipeng Kong
- The Institute of Theoretical Chemistry, State Key Laboratory of Theoretical and Computational Chemistry, Jilin University, Changchun 130023, China
| | - Xiao Chen
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Zhenyu Wang
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun 130021, China
| | - Zhiqiang Wan
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Lin Jia
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Qiuju Liu
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Yuehui Wang
- Department of Geriatrics, The First Hospital of Jilin University, Changchun 130021, China
| | - Wei Li
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Jiuwei Cui
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China.
| | - Fujun Han
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China.
| | - Lu Cai
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China; Departments of Pediatrics, Radiation Oncology, Pharmacology, and Toxicology, University of Louisville, Louisville, KY 40292, USA.
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Cheng P, Zhang F, Yu L, Lin X, He L, Li X, Lu X, Yan X, Tan Y, Zhang C. Physiological and Pharmacological Roles of FGF21 in Cardiovascular Diseases. J Diabetes Res 2016; 2016:1540267. [PMID: 27247947 PMCID: PMC4876232 DOI: 10.1155/2016/1540267] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/26/2016] [Accepted: 04/18/2016] [Indexed: 12/23/2022] Open
Abstract
Cardiovascular disease (CVD) is one of the most severe diseases in clinics. Fibroblast growth factor 21 (FGF21) is regarded as an important metabolic regulator playing a therapeutic role in diabetes and its complications. The heart is a key target as well as a source of FGF21 which is involved in heart development and also induces beneficial effects in CVDs. Our review is to clarify the roles of FGF21 in CVDs. Strong evidence showed that the development of CVDs including atherosclerosis, coronary heart disease, myocardial ischemia, cardiac hypertrophy, and diabetic cardiomyopathy is associated with serum FGF21 levels increase which was regarded as a compensatory response to induced cardiac protection. Furthermore, administration of FGF21 suppressed the above CVDs. Mechanistic studies revealed that FGF21 induced cardiac protection likely by preventing cardiac lipotoxicity and the associated oxidative stress, inflammation, and apoptosis. Normally, FGF21 induced therapeutic effects against CVDs via activation of the above kinases-mediated pathways by directly binding to the FGF receptors of the heart in the presence of β-klotho. However, recently, growing evidence showed that FGF21 induced beneficial effects on peripheral organs through an indirect way mediated by adiponectin. Therefore whether adiponectin is also involved in FGF21-induced cardiac protection still needs further investigation.
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Affiliation(s)
- Peng Cheng
- The Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou 325035, China
- Ruian Center of the Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital, Wenzhou Medical University, Wenzhou 325200, China
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Fangfang Zhang
- The Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou 325035, China
- Ruian Center of the Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital, Wenzhou Medical University, Wenzhou 325200, China
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Lechu Yu
- The Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiufei Lin
- The Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou 325035, China
- Ruian Center of the Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital, Wenzhou Medical University, Wenzhou 325200, China
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Luqing He
- The Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou 325035, China
- Ruian Center of the Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital, Wenzhou Medical University, Wenzhou 325200, China
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaokun Li
- Ruian Center of the Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital, Wenzhou Medical University, Wenzhou 325200, China
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Xuemian Lu
- The Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaoqing Yan
- The Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou 325035, China
- Ruian Center of the Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital, Wenzhou Medical University, Wenzhou 325200, China
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Yi Tan
- The Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou 325035, China
- Ruian Center of the Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital, Wenzhou Medical University, Wenzhou 325200, China
- Kosair Children Hospital Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40202, USA
- *Yi Tan: and
| | - Chi Zhang
- The Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou 325035, China
- Ruian Center of the Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital, Wenzhou Medical University, Wenzhou 325200, China
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
- *Chi Zhang:
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Zhang C, Wang F, Zhang Y, Kang Y, Wang H, Si M, Su L, Xin X, Xue F, Hao F, Yu L, Xu J, Liu Y, Xue M. Celecoxib prevents pressure overload-induced cardiac hypertrophy and dysfunction by inhibiting inflammation, apoptosis and oxidative stress. J Cell Mol Med 2015; 20:116-27. [PMID: 26512452 PMCID: PMC4717861 DOI: 10.1111/jcmm.12709] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 09/01/2015] [Indexed: 12/14/2022] Open
Abstract
To explore the effects of celecoxib on pressure overload‐induced cardiac hypertrophy (CH), cardiac dysfunction and explore the possible protective mechanisms. We surgically created abdominal aortic constrictions (AAC) in rats to induce CH. Rats with CH symptoms at 4 weeks after surgery were treated with celecoxib [2 mg/100 g body‐weight(BW)] daily for either 2 or 4 weeks. Survival rate, blood pressure and cardiac function were evaluated after celecoxib treatment. Animals were killed, and cardiac tissue was examined for morphological changes, cardiomyocyte apoptosis, fibrosis, inflammation and oxidative stress. Four weeks after AAC, rats had significantly higher systolic, diastolic and mean blood pressure, greater heart weight and enlarged cardiomyocytes, which were associated with cardiac dysfunction. Thus, the CH model was successfully established. Two weeks later, animals had impaired cardiac function and histopathological abnormalities including enlarged cardiomyocytes and cardiac fibrosis, which were exacerbated 2 weeks later. However, these pathological changes were remarkably prevented by the treatment of celecoxib, independent of preventing hypertension. Mechanistic studies revealed that celecoxib‐induced cardiac protection against CH and cardiac dysfunction was due to inhibition of apoptosis via the murine double mimute 2/P53 pathway, inhibition of inflammation via the AKT/mTOR/NF‐κB pathway and inhibition of oxidative stress via increases in nuclear factor E2‐related factor‐2‐mediated gene expression of multiple antioxidants. Celecoxib suppresses pressure overload‐induced CH by reducing apoptosis, inflammation and oxidative stress.
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Affiliation(s)
- Chi Zhang
- Ruian Center of the Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, Zhejiang, China.,School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Fan Wang
- Beijing Hui-Long-Guan Hospital, Peking University, Beijing, China
| | - Yingxia Zhang
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Yimin Kang
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Haisheng Wang
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Mingming Si
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Liping Su
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Xue Xin
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Feng Xue
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Fei Hao
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Lechu Yu
- Ruian Center of the Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jinzhong Xu
- The Affiliated Wenling Hospital of Wenzhou Medial University, Wenling, Zhejiang, China
| | - Yanlong Liu
- Ruian Center of the Chinese-American Research Institute for Diabetic Complications, Wenzhou Medical University, Wenzhou, Zhejiang, China.,School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Mingming Xue
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
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