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Iwasaki H. Association between protein arginine N-methyltransferase 1 polymorphism and overt diabetic nephropathy: Role of asymmetric dimethylarginine in vascular tone. J Clin Transl Endocrinol 2024; 36:100351. [PMID: 38799240 PMCID: PMC11126532 DOI: 10.1016/j.jcte.2024.100351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 05/07/2024] [Accepted: 05/10/2024] [Indexed: 05/29/2024] Open
Abstract
Background ω-NG,NG-asymmetric dimethylarginine (ADMA) regulates vascular tone and may participate in the pathogenesis of diabetic nephropathy (DN). Objective To investigate whether single-nucleotide polymorphisms (SNPs) around the protein arginine N-methyltransferase 1 gene (PRMT1) influence ADMA dynamics and DN incidence and severity. Methods This study utilized a hospital-based database containing 310 Japanese patients with type 2 diabetes mellitus (T2DM). The association of PRMT1-related tagged SNPs with DN stage distribution was examined using a dominant model of minor alleles. PRMT1 mRNA, serum ADMA, reactive hyperemia-peripheral arterial tonometry index (RHI), and brachial-ankle pulse wave velocity (baPWV) were compared between the genotype-based subgroups of causal SNP, and correlations between these variables were evaluated. Results The composition of DN stages significantly differed between the GG and GA + AA subgroups of rs892151 (p = 0.026). In a propensity-matching cohort of rs892151, the GA + AA subgroup had an increased incidence of overt DN (odds ratio 2.92, 95 % confidence interval 1.12-7.62, p = 0.028), along with higher PRMT1 mRNA, serum ADMA levels, and baPWV than the GG subgroup (p < 0.001, p = 0.023 and 0.047, respectively). There were correlations between PRMT1 mRNA and serum ADMA levels, between serum ADMA levels and RHI, and between baPWV and urinary albumin excretion (r = 0.335, p < 0.001, r = -0.221, p = 0.029, and r = 0.254, p = 0.004, respectively). Conclusions T2DM patients carrying the PRMT1-related variant rs892151 were susceptible to overt DN. ADMA-mediated endothelial dysfunction and arterial stiffness may be involved in the variant-related pathogenesis of overt DN.
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Affiliation(s)
- Hiroaki Iwasaki
- Toshiba Rinkan Hospital, Division of Endocrinology and Metabolism, Department of Internal Medicine, 7-9-1 Kami-tsuruma, Minami-ku, Sagamihara, Kanagawa 252-0302, Japan
- Minamiyamato Hospital, Division of Endocrinology and Metabolism, Department of Internal Medicine, 1331-2 Shimowada, Yamato, Kanagawa 242-0015, Japan
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Chen X, Liu Q, Chen N, Ma J, Wu X, Zhang H, Yu L, Huang H. Diagnostic biomarker for type 2 diabetic peripheral neuropathy via comprehensive bioinformatics analysis. J Diabetes 2024; 16:e13506. [PMID: 38018513 PMCID: PMC10925884 DOI: 10.1111/1753-0407.13506] [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: 10/19/2022] [Revised: 09/12/2023] [Accepted: 11/08/2023] [Indexed: 11/30/2023] Open
Abstract
BACKGROUND Diabetic peripheral neuropathy (DPN) is a common complication of Type 2 diabetes mellitus (T2DM), which frequently results in disabling neuropathic pain and lower-limb amputation. The identification of noninvasive biomarkers for DPN may help early detection and individualized treatment of DPN. METHODS In this study, we identified differentially expressed genes (DEGs) between DPN and the control based on blood-source (GSE95849) and tissue-source gene expression profiles (GSE143979) from the Gene Expression Omnibus (GEO) database using limma, edgeR, and DESeq2 approaches. KEGGG and GO functional enrichments were performed. Hub genes and their correlation with infiltrating immune cells were analyzed. Real-time quantitative polymerase chain reaction (RT-qPCR) was used to quantify hub gene expression. RESULTS In total, 144 DEGs between DPN and the control were identified. Functional enrichment revealed that the DEGs were mainly enriched in immune-related pathways like the Fc epsilon receptor Ig signaling pathway. By protein-protein interaction (PPI) network analysis, FCER1G, SYK, ITGA4, F13A1, MS4A2, and PTK2B were screened as hub genes with higher expression in DPN patients, among which half were immune genes (FCER1G, PTK2B, and SYK). RT-qPCR demonstrated that mRNA expression of FCER1G, PTK2B, and SYK was significantly increased in patients with DPN compared with both diabetic nonperipheral neuropathy (DNN) and normal subjects. The area under the receiver operating characteristic (ROC) curve of FCER1G, PTK2B, and SYK was 0.84, 0.81, and 0.73, respectively, suggesting their great advantages as diagnostic biomarkers to predict the progression of neuropathy in T2DM. Further analysis indicated that the expression of FCER1G, PTK2B, and SYK was negatively correlated with the cell proportion of significantly altered resting natural killer cells, T follicular helper cells, and activated mast cells, but positively correlated with monocytes. CONCLUSIONS Our findings demonstrated FCER1G, PTK2B, and SYK are potential diagnostic biomarkers and therapeutic targets for DPN, which provides new insight into DPN pathogenesis and therapies.
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Affiliation(s)
- Xiaoyu Chen
- Department of EndocrinologyThe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouChina
| | - Qingquan Liu
- Department of CardiologyThe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouChina
| | - Niyao Chen
- Department of EndocrinologyThe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouChina
| | - Jiangxin Ma
- Department of EndocrinologyThe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouChina
| | - Xiaohong Wu
- Department of EndocrinologyThe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouChina
| | - Haibin Zhang
- Department of EndocrinologyThe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouChina
| | - Liying Yu
- Central LaboratoryThe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouChina
| | - Huibin Huang
- Department of EndocrinologyThe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouChina
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Ghavidel F, Amiri H, Tabrizi MH, Alidadi S, Hosseini H, Sahebkar A. The Combinational Effect of Inulin and Resveratrol on the Oxidative Stress and Inflammation Level in a Rat Model of Diabetic Nephropathy. Curr Dev Nutr 2024; 8:102059. [PMID: 38292928 PMCID: PMC10826146 DOI: 10.1016/j.cdnut.2023.102059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/09/2023] [Accepted: 12/04/2023] [Indexed: 02/01/2024] Open
Abstract
Background Using inulin can enhance resveratrol's effects by improving the intestinal microbiome and the stability of resveratrol. Objectives We aimed to investigate the effect of therapeutic intervention with combined inulin and resveratrol on kidney function in diabetic rats. Methods Diabetic model was induced by intraperitoneal injection of streptozotocin. Afterward, rats were divided into 6 groups: control, diabetic without treatment, diabetic treated with insulin, diabetic treated with resveratrol, diabetic treated with inulin, and diabetic treated with a combination of inulin and resveratrol. After 10 wk, the creatinine, urea, insulin, urinary proteins, and inflammatory and oxidative stress markers were evaluated. Pathologic changes were examined in kidney tissues. Results Renal dysfunction, accompanied by increased inflammation and oxidative stress, was observed. Our results showed that treatment with resveratrol and inulin had antidiabetic effects and was associated with reduced renal dysfunction, oxidative stress, and kidney inflammation. In addition, it was observed that combined treatment with inulin and resveratrol outperformed monotherapies in improving kidney function and reducing oxidative stress and inflammation. Conclusions Treatment with resveratrol and inulin can have renoprotective effects by improving oxidative stress and inflammation in kidney tissues. Therefore, employing these 2 compounds is suggested as an inexpensive and available method for diabetic nephropathy.
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Affiliation(s)
- Farideh Ghavidel
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamed Amiri
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Soodeh Alidadi
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hossein Hosseini
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Sinha SK, Nicholas SB. Pathomechanisms of Diabetic Kidney Disease. J Clin Med 2023; 12:7349. [PMID: 38068400 PMCID: PMC10707303 DOI: 10.3390/jcm12237349] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/15/2023] [Accepted: 11/22/2023] [Indexed: 03/15/2024] Open
Abstract
The worldwide occurrence of diabetic kidney disease (DKD) is swiftly rising, primarily attributed to the growing population of individuals affected by type 2 diabetes. This surge has been transformed into a substantial global concern, placing additional strain on healthcare systems already grappling with significant demands. The pathogenesis of DKD is intricate, originating with hyperglycemia, which triggers various mechanisms and pathways: metabolic, hemodynamic, inflammatory, and fibrotic which ultimately lead to renal damage. Within each pathway, several mediators contribute to the development of renal structural and functional changes. Some of these mediators, such as inflammatory cytokines, reactive oxygen species, and transforming growth factor β are shared among the different pathways, leading to significant overlap and interaction between them. While current treatment options for DKD have shown advancement over previous strategies, their effectiveness remains somewhat constrained as patients still experience residual risk of disease progression. Therefore, a comprehensive grasp of the molecular mechanisms underlying the onset and progression of DKD is imperative for the continued creation of novel and groundbreaking therapies for this condition. In this review, we discuss the current achievements in fundamental research, with a particular emphasis on individual factors and recent developments in DKD treatment.
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Affiliation(s)
- Satyesh K. Sinha
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA;
- College of Medicine, Charles R Drew University of Medicine and Science, Los Angeles, CA 90059, USA
| | - Susanne B. Nicholas
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA;
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Zusi C, Rioda M, Maguolo A, Emiliani F, Unali I, Costantini S, Corradi M, Contreas G, Morandi A, Maffeis C. IGF1 and PPARG polymorphisms are associated with reduced estimated glomerular filtration rate in a cohort of children and adolescents with type 1 diabetes. Acta Diabetol 2023; 60:1351-1358. [PMID: 37338602 PMCID: PMC10442246 DOI: 10.1007/s00592-023-02128-6] [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: 10/06/2022] [Accepted: 06/03/2023] [Indexed: 06/21/2023]
Abstract
INTRODUCTION Several genetic loci have been associated with diabetic nephropathy; however, the underlying genetic mechanisms are still poorly understood, with no robust candidate genes identified yet. AIM We aimed to determine whether two polymorphisms, previously associated with renal decline, influence kidney impairment evaluating their association with markers of renal function in a pediatric population with type 1 diabetes (T1D). MATERIAL AND METHODS Renal function was evaluated by glomerular filtration rate (eGFR) and albumin-to-creatinine ratio (ACR) in a cohort of pediatric subjects with T1D (n = 278). Risk factors for diabetes complications (diabetes duration, blood pressure, HbA1c) were assessed. The IGF1 rs35767 and PPARG rs1801282 SNPs were genotyped by TaqMan RT-PCR system. An additive genetic interaction was calculated. Association analysis between markers of renal function and both SNPs or their additive interaction were performed. RESULTS Both SNPs showed a significant association with eGFR: the A allele of rs35767 or the C allele of rs1801282 were associated to reduced eGFR compared to G alleles. Multivariate regression analysis adjusted for age, sex, z-BMI, T1D duration, blood pressure and Hba1c values showed that the additive genetic interaction was independently associated with lower eGFR (β = -3.59 [-6.52 to -0.66], p = 0.017). No associations were detected between SNPs, their additive interaction and ACR. CONCLUSIONS These results provide new insight into the genetic predisposition to renal dysfunction, showing that two polymorphisms in IGF1 and PPARG genes can lead to a reduction in renal filtration rate leading these patients to be exposed to a higher risk of early renal complications.
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Affiliation(s)
- Chiara Zusi
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Section of Pediatric Diabetes and Metabolism, University and Azienda Ospedaliera, Università di Verona, Piazzale A. Stefani, 1, 37126, Verona, Italy.
| | - Marco Rioda
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Section of Pediatric Diabetes and Metabolism, University and Azienda Ospedaliera, Università di Verona, Piazzale A. Stefani, 1, 37126, Verona, Italy
| | - Alice Maguolo
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Section of Pediatric Diabetes and Metabolism, University and Azienda Ospedaliera, Università di Verona, Piazzale A. Stefani, 1, 37126, Verona, Italy
| | - Federica Emiliani
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Section of Pediatric Diabetes and Metabolism, University and Azienda Ospedaliera, Università di Verona, Piazzale A. Stefani, 1, 37126, Verona, Italy
| | - Ilaria Unali
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Section of Pediatric Diabetes and Metabolism, University and Azienda Ospedaliera, Università di Verona, Piazzale A. Stefani, 1, 37126, Verona, Italy
| | - Silvia Costantini
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Section of Pediatric Diabetes and Metabolism, University and Azienda Ospedaliera, Università di Verona, Piazzale A. Stefani, 1, 37126, Verona, Italy
| | - Massimiliano Corradi
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Section of Pediatric Diabetes and Metabolism, University and Azienda Ospedaliera, Università di Verona, Piazzale A. Stefani, 1, 37126, Verona, Italy
| | - Giovanna Contreas
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Section of Pediatric Diabetes and Metabolism, University and Azienda Ospedaliera, Università di Verona, Piazzale A. Stefani, 1, 37126, Verona, Italy
| | - Anita Morandi
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Section of Pediatric Diabetes and Metabolism, University and Azienda Ospedaliera, Università di Verona, Piazzale A. Stefani, 1, 37126, Verona, Italy
| | - Claudio Maffeis
- Department of Surgery, Dentistry, Gynecology and Pediatrics, Section of Pediatric Diabetes and Metabolism, University and Azienda Ospedaliera, Università di Verona, Piazzale A. Stefani, 1, 37126, Verona, Italy
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Osman W, Mousa M, Albreiki M, Baalfaqih Z, Daggag H, Hill C, McKnight AJ, Maxwell AP, Al Safar H. A genome-wide association study identifies a possible role for cannabinoid signalling in the pathogenesis of diabetic kidney disease. Sci Rep 2023; 13:4661. [PMID: 36949158 PMCID: PMC10033677 DOI: 10.1038/s41598-023-31701-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 03/16/2023] [Indexed: 03/24/2023] Open
Abstract
Diabetic kidney disease (DKD), also known as diabetic nephropathy, is the leading cause of renal impairment and end-stage renal disease. Patients with diabetes are at risk for DKD because of poor control of their blood glucose, as well as nonmodifiable risk factors including age, ethnicity, and genetics. This genome-wide association study (GWAS) was conducted for the first time in the Emirati population to investigate possible genetic factors associated with the development and progression of DKD. We included data on 7,921,925 single nucleotide polymorphism (SNPs) in 258 cases of type 2 diabetes mellitus (T2DM) who developed DKD and 938 control subjects with T2DM who did not develop DKD. GWAS suggestive results (P < 1 × 10-5) were further replicated using summary statistics from three cohorts with T2DM-induced DKD (Bio Bank Japan data, UK Biobank, and FinnGen Project data) and T1DM-induced DKD (UK-ROI cohort data from Belfast, UK). When conducting a multiple linear regression model for gene-set analyses, the CNR2 gene demonstrated genome-wide significance at 1.46 × 10-6. SNPs in CNR2 gene, encodes cannabinoid receptor 2 or CB2, were replicated in Japanese samples with the leading SNP rs2501391 showing a Pcombined = 9.3 × 10-7, and odds ratio = 0.67 in association with DKD associated with T2DM, but not with T1DM, without any significant association with T2DM itself. The allele frequencies of our cohort and those of the replication cohorts were in most cases markedly different. In addition, we replicated the association between rs1564939 in the GLRA3 gene and DKD in T2DM (P = 0.016, odds ratio = 0.54 per allele C). Our findings suggest evidence that cannabinoid signalling may be involved in the development of DKD through CB2, which is expressed in different kidney regions and known to be involved in insulin resistance, inflammation, and the development of kidney fibrosis.
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Affiliation(s)
- Wael Osman
- Center for Biotechnology, Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates
- Department of Biology, College of Arts and Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Mira Mousa
- Center for Biotechnology, Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Mohammed Albreiki
- Center for Biotechnology, Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Zahrah Baalfaqih
- Center for Biotechnology, Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Hinda Daggag
- Imperial College of London Diabetes Centre, Abu Dhabi, United Arab Emirates
| | - Claire Hill
- Centre for Public Health, Queen's University of Belfast, Belfast, UK
| | | | | | - Habiba Al Safar
- Center for Biotechnology, Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates.
- Department of Biomedical Engineering, College of Engineering, Khalifa University, Abu Dhabi, United Arab Emirates.
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7
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Di Camillo B, Puricelli L, Iori E, Toffolo GM, Tessari P, Arrigoni G. Modeling SILAC Data to Assess Protein Turnover in a Cellular Model of Diabetic Nephropathy. Int J Mol Sci 2023; 24:ijms24032811. [PMID: 36769128 PMCID: PMC9917874 DOI: 10.3390/ijms24032811] [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: 12/14/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
Protein turnover rate is finely regulated through intracellular mechanisms and signals that are still incompletely understood but that are essential for the correct function of cellular processes. Indeed, a dysfunctional proteostasis often impacts the cell's ability to remove unfolded, misfolded, degraded, non-functional, or damaged proteins. Thus, altered cellular mechanisms controlling protein turnover impinge on the pathophysiology of many diseases, making the study of protein synthesis and degradation rates an important step for a more comprehensive understanding of these pathologies. In this manuscript, we describe the application of a dynamic-SILAC approach to study the turnover rate and the abundance of proteins in a cellular model of diabetic nephropathy. We estimated protein half-lives and relative abundance for thousands of proteins, several of which are characterized by either an altered turnover rate or altered abundance between diabetic nephropathic subjects and diabetic controls. Many of these proteins were previously shown to be related to diabetic complications and represent therefore, possible biomarkers or therapeutic targets. Beside the aspects strictly related to the pathological condition, our data also represent a consistent compendium of protein half-lives in human fibroblasts and a rich source of important information related to basic cell biology.
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Affiliation(s)
- Barbara Di Camillo
- Department of Information Engineering, University of Padova, 35131 Padova, Italy
- Correspondence: (B.D.C.); (G.A.)
| | - Lucia Puricelli
- Department of Medicine, University of Padova, 35128 Padova, Italy
- Proteomics Center, University of Padova and Azienda Ospedaliera di Padova, 35128 Padova, Italy
| | - Elisabetta Iori
- Department of Medicine, University of Padova, 35128 Padova, Italy
| | - Gianna Maria Toffolo
- Department of Information Engineering, University of Padova, 35131 Padova, Italy
| | - Paolo Tessari
- Department of Medicine, University of Padova, 35128 Padova, Italy
| | - Giorgio Arrigoni
- Proteomics Center, University of Padova and Azienda Ospedaliera di Padova, 35128 Padova, Italy
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
- Correspondence: (B.D.C.); (G.A.)
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Zhang S, Cui D, Tang M, Yang G, Yard B, Hu H, Wu Y, Zhang Q. Serum and urinary carnosinase-1 correlate with kidney function and inflammation. Amino Acids 2023; 55:89-100. [PMID: 36319874 PMCID: PMC9877089 DOI: 10.1007/s00726-022-03206-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 09/22/2022] [Indexed: 11/05/2022]
Abstract
The carnosinase dipeptidase 1 (CNDP1) gene has been reported as a susceptibility locus for the development of diabetic kidney disease (DKD). While the (CTG)5 allele affords protection in the Caucasian population, we have previously shown that this allele is less frequently present in the Chinese population and therefore a protective role for the (CTG)5 allele is difficult to demonstrate. In the present study, we sought to assess if carnosinase-1 (CN-1) concentrations in serum and/or urine are associated with progression of DKD and to what extent CN-1 influences diabetes-associated inflammation. From a total of 622 individuals that enrolled in our study, 247 patients had type 2 diabetes without DKD, 165 patients had DKD and 210 subjects served as healthy controls. Uni- and multivariate regression analyses were performed to identify potential factors predicting urinary albumin creatinine ratio (UACR), estimated glomerular filtration rate (eGFR) and CN-1 concentration in serum and urine. The results indicated that serum CN-1 indeed correlated with eGFR (p = 0.001). In addition, urinary CN-1 associated with eGFR and tubular injury indicator: urinary cystatin C (Cys-C) and urinary retinol-binding protein (RBP). Interestingly, serum CN-1 also positively correlated with inflammatory indicators: neutrophils and lymphocytes. With regard to this, a STZ injected C57BL/6 mice model with surgically made skin wound was established for the generation of skin inflammation. This animal model further proved that the expression of CN-1 in liver and kidney increased remarkably in diabetic mice with skin wound as compared to those without. In conclusion, serum and urinary CN-1 significantly related to the surrogates of impaired renal function in diabetic patients; besides, CN-1 expression might also be associated with the process of inflammation.
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Affiliation(s)
- Shiqi Zhang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 China
| | - Di Cui
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 China
| | - Mingna Tang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 China
| | - Guang Yang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 China
| | - Benito Yard
- Vth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Center Mannheim, University of Heidelberg, 68167 Mannheim, Germany
| | - Huaqing Hu
- Health Management Center, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 China
| | - Yonggui Wu
- Department of Nephrology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 China
| | - Qiu Zhang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 China
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9
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Afrash MR, Rahimi F, Kazemi H, Shanbezadeh M, Amraei M, Asadi F. Development of an intelligent clinical decision support system for the early prediction of diabetic nephropathy. INFORMATICS IN MEDICINE UNLOCKED 2022. [DOI: 10.1016/j.imu.2022.101135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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10
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Zeni L, Norden AGW, Prandi E, Canepa C, Burling K, Simpson K, Felappi B, Plebani A, Cancarini G, Ferraro PM, Fraser D, Unwin RJ. Exploration of a panel of urine biomarkers of kidney disease in two paediatric cohorts with Type 1 diabetes mellitus of differing duration. Diabetol Metab Syndr 2022; 14:71. [PMID: 35550634 PMCID: PMC9097324 DOI: 10.1186/s13098-022-00839-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/26/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND The pathogenesis of diabetic kidney disease (DKD) is complex and involves both glomerular and tubular dysfunction. A global assessment of kidney function is necessary to stage DKD, a progressive kidney disease that is likely to begin in childhood. The present study evaluated whether kidney injury biomarkers identified as early DKD biomarkers in adults have any prognostic value in the very early stages of childhood diabetes. METHODS We measured urine free Retinol-binding protein 4 (UfRBP4), albumin (UAlb), Kidney injury molecule-1 (KIM-1) and the microRNAs miR-155, miR-126 and miR-29b in two cohorts of paediatric T1DM patients without evidence of DKD, but with diabetes of short-duration, ≤ 2.5 years (SD, n = 25) or of long-duration, ≥ 10 years (LD, n = 29); non-diabetic siblings (H, n = 26) were recruited as controls. A p value < 0.05 was considered significant for all results. RESULTS UfRBP4 and UAlb were not significantly different across the three groups. No differences were found in KIM-1 excretion between any of the three groups. UfRBP4 was correlated with UAlb in all three groups (r 0.49; p < 0.001), whereas KIM-1 showed no correlation with albumin excretion. Among microRNAs, miR-29b was higher in all diabetic children compared with the H control group (p = 0.03), whereas miR-155 and miR-126 were not significantly different. No differences were found between the SD and LD groups for all three microRNAs. No associations were identified between these biomarkers with sex, age, BMI, eGFR, T1DM duration or glycaemic control. CONCLUSIONS UfRBP4, KIM-1, miR-155, and miR-126 were unaffected by the presence and duration of diabetes, whereas miR-29b showed a modest elevation in diabetics, regardless of duration. These data support the specificity of a panel of urine biomarkers as DKD biomarkers, rather than any relationship to diabetes per se or its duration, and not as early DKD biomarkers in a paediatric setting.
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Affiliation(s)
- Letizia Zeni
- Nephrology Unit, Azienda Socio-Sanitaria Territoriale degli Spedali Civili di Brescia, Piazzale Spedali Civili, 1-25123, Brescia, Italy.
| | - Anthony G W Norden
- Department of Renal Medicine, Royal Free Hospital Trust, University College London, Rowland Hill Street, London, NW3 2PF, UK
| | - Elena Prandi
- Pediatrics Clinic, Department of Clinical and Experimental Sciences, University of Brescia and ASST Spedali Civili of Brescia, Piazzale Spedali Civili, 1-25123, Brescia, Italy
| | - Carolina Canepa
- Department of Nephrology, Royal Berkshire Hospital, Reading, UK
| | - Keith Burling
- Core Biochemical Assay Laboratory, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, UK
| | - Katherine Simpson
- Wales Kidney Research Unit, Division of Infection and Immunity, School of Medicine, College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK
| | - Barbara Felappi
- Pediatrics Clinic, Department of Clinical and Experimental Sciences, University of Brescia and ASST Spedali Civili of Brescia, Piazzale Spedali Civili, 1-25123, Brescia, Italy
| | - Alessandro Plebani
- Pediatrics Clinic, Department of Clinical and Experimental Sciences, University of Brescia and ASST Spedali Civili of Brescia, Piazzale Spedali Civili, 1-25123, Brescia, Italy
| | - Giovanni Cancarini
- Nephrology, Department of Medical and Surgical Specialties, Radiological Science and Public Health, University of Brescia, Brescia, Italy
| | - Pietro Manuel Ferraro
- U.O.S. Terapia Conservativa della Malattia Renale Cronica, U.O.C. Nefrologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
- Università Cattolica del Sacro Cuore, Rome, Italy
| | - Donald Fraser
- Wales Kidney Research Unit, Division of Infection and Immunity, School of Medicine, College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK
| | - Robert J Unwin
- Department of Renal Medicine, Royal Free Hospital Trust, University College London, Rowland Hill Street, London, NW3 2PF, UK
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11
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ElHajj Chehadeh S, Sayed NS, Abdelsamad HS, Almahmeed W, Khandoker AH, Jelinek HF, Alsafar HS. Genetic Variants and Their Associations to Type 2 Diabetes Mellitus Complications in the United Arab Emirates. Front Endocrinol (Lausanne) 2022; 12:751885. [PMID: 35069435 PMCID: PMC8772337 DOI: 10.3389/fendo.2021.751885] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/22/2021] [Indexed: 11/13/2022] Open
Abstract
Aim Type 2 Diabetes Mellitus (T2DM) is associated with microvascular complications, including diabetic retinopathy (DR), diabetic nephropathy (DNp), and diabetic peripheral neuropathy (DPN). In this study, we investigated genetic variations and Single Nucleotide Polymorphisms (SNPs) associated with DR, DNp, DPN and their combinations among T2DM patients of Arab origin from the United Arab Emirates, to establish the role of genes in the progression of microvascular diabetes complications. Methods A total of 158 Emirati patients with T2DM were recruited in this study. The study population was divided into 8 groups based on the presence of single, dual, or all three complications. SNPs were selected for association analyses through a search of publicly available databases, specifically genome-wide association study (GWAS) catalog, infinome genome interpretation platform, and GWAS Central database. A multivariate logistic regression analysis and association test were performed to evaluate the association between 83 SNPs and DR, DNp, DPN, and their combinations. Results Eighty-three SNPs were identified as being associated with T2DM and 18 SNPs had significant associations to one or more diabetes complications. The most strongly significant association for DR was rs3024997 SNP in the VEGFA gene. The top-ranked SNP for DPN was rs4496877 in the NOS3 gene. A trend towards association was detected at rs833068 and rs3024998 in the VEGFA gene with DR and rs743507 and rs1808593 in the NOS3 gene with DNp. For dual complications, the rs833061, rs833068 and rs3024997 in the VEGFA gene and the rs4149263 SNP in the ABCA1 gene were also with borderline association with DR/DNp and DPN/DNp, respectively. Diabetic with all of the complications was significantly associated with rs2230806 in the ABCA1 gene. In addition, the highly associated SNPs rs3024997 of the VEGFA gene and rs4496877 of the NOS3 gene were linked to DR and DPN after adjusting for the effects of other associated markers, respectively. Conclusions The present study reports associations of different genetic polymorphisms with microvascular complications and their combinations in Emirati T2DM patients, reporting new associations, and corroborating previous findings. Of interest is that some SNPs/genes were only present if multiple comorbidities were present and not associated with any single complication.
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Affiliation(s)
| | - Noura S. Sayed
- Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
| | - Hanin S. Abdelsamad
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Wael Almahmeed
- Institute of Cardiac Science, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
- Heart and Vascular Institute, Cleveland Clinic, Abu Dhabi, United Arab Emirates
| | - Ahsan H. Khandoker
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Healthcare Engineering Innovation Center (HEIC), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Herbert F. Jelinek
- Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Healthcare Engineering Innovation Center (HEIC), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Habiba S. Alsafar
- Khalifa University Center of Biotechnology, Abu Dhabi, United Arab Emirates
- Biomedical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
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12
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Umapathy D, Subramanyam PV, Krishnamoorthy E, Viswanathan V, Ramkumar KM. Association of Fetuin-A with Thr256Ser exon polymorphism of α2-Heremans Schmid Glycoprotein (AHSG) gene in type 2 diabetic patients with overt nephropathy. J Diabetes Complications 2022; 36:108074. [PMID: 34774416 DOI: 10.1016/j.jdiacomp.2021.108074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 09/13/2021] [Accepted: 10/02/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Circulatory Fetuin-A has been well reported to elevate the risk for Diabetic Nephropathy (DN) and is associated with many vascular complications. Compelling reports have well documented that the circulatory levels of Fetuin-A directly have an impact on its AHSG (α2- Heremans- Schmid Glycoprotein) gene single nucleotide polymorphisms (SNP). Thus, in this study among the South Indian T2DM population, we aim to explore the association of AHSG Thr256Ser (rs4918) SNP in subjects with DN and correlate with the circulatory levels of Fetuin-A at various stages of DN patients. METHODS A total of 975 subjects were recruited, such as Group-I, consisting of Controls (n = 300), Group-II, with normoalbuminuria (n = 300), Group-IIIa, with incipient microalbuminuria (n = 195), Group-IIIb, with persistent macroalbuminuria (n = 180)] and were subjected for genotyping using PCR-Restriction Fragment Length Polymorphism (RFLP). Circulatory Fetuin-A was measured using sandwich enzyme-linked immunosorbent assay (ELISA). RESULTS The 'G' allele of AHSG exon-7 (C/G) SNP is significantly concomitant and conferred significant risk for normoalbuminuria subjects. In the DN subjects, the 'G' allele showed the risk for persistent macroalbuminuria. A noticeable stepwise decrease was evidenced in the circulatory Fetuin-A among persistent macroalbuminuria over incipient microalbuminuria from normoalbuminuria. Further, the circulatory Fetuin-A was lowered in DN subjects with mutant GG genotype than the wild CC. CONCLUSION AHSG Thr256Ser (rs4918) SNP was associated with renal complications among South Indian T2DM subjects.
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Affiliation(s)
| | - Paridhy Vanniya Subramanyam
- Department of Genetics, Dr. ALM PG Institute of Basic Medical Science, University of Madras, Tamilnadu, India
| | - Ezhilarasi Krishnamoorthy
- Department of Biochemistry and Molecular Genetics, Prof. M. Viswanathan Diabetes Research Centre and M.V. Hospital for Diabetes (A WHO Collaborating Centre for Research, Education & Training in Diabetes), International Diabetes Federation, Centre of Education and Centre of Excellence in Diabetes Care, Royapuram, Chennai, -600 013, Tamilnadu, India
| | - Vijay Viswanathan
- Department of Biochemistry and Molecular Genetics, Prof. M. Viswanathan Diabetes Research Centre and M.V. Hospital for Diabetes (A WHO Collaborating Centre for Research, Education & Training in Diabetes), International Diabetes Federation, Centre of Education and Centre of Excellence in Diabetes Care, Royapuram, Chennai, -600 013, Tamilnadu, India.
| | - Kunka Mohanram Ramkumar
- SRM Research Institute and Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu 603 203, India.
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13
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Tziastoudi M, Cholevas C, Theoharides TC, Stefanidis I. Meta-Analysis and Bioinformatics Detection of Susceptibility Genes in Diabetic Nephropathy. Int J Mol Sci 2021; 23:ijms23010020. [PMID: 35008447 PMCID: PMC8744540 DOI: 10.3390/ijms23010020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/15/2021] [Accepted: 12/18/2021] [Indexed: 11/16/2022] Open
Abstract
The latest meta-analysis of genome-wide linkage studies (GWLS) identified nine cytogenetic locations suggestive of a linkage with diabetic nephropathy (DN) due to type 1 diabetes mellitus (T1DM) and seven locations due to type 2 diabetes mellitus (T2DM). In order to gain biological insight about the functional role of the genes located in these regions and to prioritize the most significant genetic loci for further research, we conducted a gene ontology analysis with an over representation test for the functional annotation of the protein coding genes. Protein analysis through evolutionary relationships (PANTHER) version 16.0 software and Cytoscape with the relevant plugins were used for the gene ontology analysis, and the overrepresentation test and STRING database were used for the construction of the protein network. The findings of the over-representation test highlight the contribution of immune related molecules like immunoglobulins, cytokines, and chemokines with regard to the most overrepresented protein classes, whereas the most enriched signaling pathways include the VEGF signaling pathway, the Cadherin pathway, the Wnt pathway, the angiogenesis pathway, the p38 MAPK pathway, and the EGF receptor signaling pathway. The common section of T1DM and T2DM results include the significant over representation of immune related molecules, and the Cadherin and Wnt signaling pathways that could constitute potential therapeutic targets for the treatment of DN, irrespective of the type of diabetes.
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Affiliation(s)
- Maria Tziastoudi
- Department of Nephrology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41500 Larisa, Greece;
- Correspondence: ; Tel.: +30-2413501667; Fax: +30-2413501015
| | - Christos Cholevas
- First Department of Ophthalmology, Faculty of Health Sciences, Aristotle University of Thessaloniki School of Medicine, AHEPA Hospital, 54636 Thessaloniki, Greece;
| | | | - Ioannis Stefanidis
- Department of Nephrology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41500 Larisa, Greece;
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14
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Saracyn M, Kisiel B, Franaszczyk M, Brodowska-Kania D, Żmudzki W, Małecki R, Niemczyk L, Dyrla P, Kamiński G, Płoski R, Niemczyk S. Diabetic kidney disease: Are the reported associations with single-nucleotide polymorphisms disease-specific? World J Diabetes 2021; 12:1765-1777. [PMID: 34754377 PMCID: PMC8554375 DOI: 10.4239/wjd.v12.i10.1765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 05/26/2021] [Accepted: 09/07/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The genetic backgrounds of diabetic kidney disease (DKD) and end-stage kidney disease (ESKD) have not been fully elucidated. AIM To examine the individual and cumulative effects of single-nucleotide polymorphisms (SNPs) previously associated with DKD on the risk for ESKD of diabetic etiology and to determine if any associations observed were specific for DKD. METHODS Fourteen SNPs were genotyped in hemodialyzed 136 patients with diabetic ESKD (DKD group) and 121 patients with non-diabetic ESKD (NDKD group). Patients were also re-classified on the basis of the primary cause of chronic kidney disease (CKD). The distribution of alleles was compared between diabetic and non-diabetic groups as well as between different sub-phenotypes. The weighted multilocus genetic risk score (GRS) was calculated to estimate the cumulative risk conferred by all SNPs. The GRS distribution was then compared between the DKD and NDKD groups as well as in the groups according to the primary cause of CKD. RESULTS One SNP (rs841853; SLC2A1) showed a nominal association with DKD (P = 0.048; P > 0.05 after Bonferroni correction). The GRS was higher in the DKD group (0.615 ± 0.260) than in the NDKD group (0.590 ± 0.253), but the difference was not significant (P = 0.46). The analysis of associations between GRS and individual factors did not show any significant correlation. However, the GRS was significantly higher in patients with glomerular disease than in those with tubulointerstitial disease (P = 0.014) and in those with a combined group (tubulointerstitial, vascular, and cystic and congenital disease) (P = 0.018). CONCLUSION Our results suggest that selected SNPs that were previously associated with DKD may not be specific for DKD and may confer risk for CKD of different etiology, particularly those affecting renal glomeruli.
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Affiliation(s)
- Marek Saracyn
- Department of Internal Diseases, Nephrology and Dialysis, Military Institute of Medicine, Warsaw 04-141, Poland
- Department of Endocrinology and Isotope Therapy, Military Institute of Medicine, Warsaw 04-141, Poland
| | - Bartłomiej Kisiel
- Clinical Research Support Center, Military Institute of Medicine, Warsaw 04-141, Poland
| | - Maria Franaszczyk
- Department of Medical Biology, Molecular Biology Laboratory, Institute of Cardiology, Warsaw 04-628, Poland
| | - Dorota Brodowska-Kania
- Department of Internal Diseases, Nephrology and Dialysis, Military Institute of Medicine, Warsaw 04-141, Poland
- Department of Endocrinology and Isotope Therapy, Military Institute of Medicine, Warsaw 04-141, Poland
| | - Wawrzyniec Żmudzki
- Department of Internal Diseases, Nephrology and Dialysis, Military Institute of Medicine, Warsaw 04-141, Poland
| | - Robert Małecki
- Department of Nephrology, Międzyleski Specialist Hospital in Warsaw, Warsaw 04-749, Poland
| | - Longin Niemczyk
- Department of Nephrology, Dialysis and Internal Diseases, Warsaw Medical University, Warsaw 02-097, Poland
| | - Przemysław Dyrla
- Department of Gastroenterology, Military Institute of Medicine, Warsaw 04-141, Poland
| | - Grzegorz Kamiński
- Department of Endocrinology and Isotope Therapy, Military Institute of Medicine, Warsaw 04-141, Poland
| | - Rafał Płoski
- Department of Medical Genetics, Medical University of Warsaw, Warsaw 02-106, Poland
| | - Stanisław Niemczyk
- Department of Internal Diseases, Nephrology and Dialysis, Military Institute of Medicine, Warsaw 04-141, Poland
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15
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Development of Biomarkers and Molecular Therapy Based on Inflammatory Genes in Diabetic Nephropathy. Int J Mol Sci 2021; 22:ijms22189985. [PMID: 34576149 PMCID: PMC8465809 DOI: 10.3390/ijms22189985] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 02/06/2023] Open
Abstract
Diabetic Nephropathy (DN) is a debilitating consequence of both Type 1 and Type 2 diabetes affecting the kidney and renal tubules leading to End Stage Renal Disease (ESRD). As diabetes is a world epidemic and almost half of diabetic patients develop DN in their lifetime, a large group of people is affected. Due to the complex nature of the disease, current diagnosis and treatment are not adequate to halt disease progression or provide an effective cure. DN is now considered a manifestation of inflammation where inflammatory molecules regulate most of the renal physiology. Recent advances in genetics and genomic technology have identified numerous susceptibility genes that are associated with DN, many of which have inflammatory functions. Based on their role in DN, we will discuss the current aspects of developing biomarkers and molecular therapy for advancing precision medicine.
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16
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Tziastoudi M, Tsezou A, Stefanidis I. Cadherin and Wnt signaling pathways as key regulators in diabetic nephropathy. PLoS One 2021; 16:e0255728. [PMID: 34411124 PMCID: PMC8375992 DOI: 10.1371/journal.pone.0255728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 07/22/2021] [Indexed: 12/14/2022] Open
Abstract
AIM A recent meta-analysis of genome-wide linkage studies (GWLS) has identified multiple genetic regions suggestive of linkage with DN harboring hundreds of genes. Moving this number of genetic loci forward into biological insight is truly the next step. Here, we approach this challenge with a gene ontology (GO) analysis in order to yield biological and functional role to the genes, an over-representation test to find which GO terms are enriched in the gene list, pathway analysis, as well as protein network analysis. METHOD GO analysis was performed using protein analysis through evolutionary relationships (PANTHER) version 14.0 software and P-values less than 0.05 were considered statistically significant. GO analysis was followed by over-representation test for the identification of enriched terms. Statistical significance was calculated by Fisher's exact test and adjusted using the false discovery rate (FDR) for correction of multiple tests. Cytoscape with the relevant plugins was used for the construction of the protein network and clustering analysis. RESULTS The GO analysis assign multiple GO terms to the genes regarding the molecular function, the biological process and the cellular component, protein class and pathway analysis. The findings of the over-representation test highlight the contribution of cell adhesion regarding the biological process, integral components of plasma membrane regarding the cellular component, chemokines and cytokines with regard to protein class, while the pathway analysis emphasizes the contribution of Wnt and cadherin signaling pathways. CONCLUSIONS Our results suggest that a core feature of the pathogenesis of DN may be a disturbance in Wnt and cadherin signaling pathways, whereas the contribution of chemokines and cytokines need to be studied in additional studies.
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Affiliation(s)
- Maria Tziastoudi
- Department of Nephrology, School of Medicine, University of Thessaly, Larissa, Greece
| | - Aspasia Tsezou
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Ioannis Stefanidis
- Department of Nephrology, School of Medicine, University of Thessaly, Larissa, Greece
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17
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The Antioxidative Role of Natural Compounds from a Green Coconut Mesocarp Undeniably Contributes to Control Diabetic Complications as Evidenced by the Associated Genes and Biochemical Indexes. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9711176. [PMID: 34367469 PMCID: PMC8337112 DOI: 10.1155/2021/9711176] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/05/2021] [Indexed: 01/05/2023]
Abstract
The purpose of this study was to look into the effects of green coconut mesocarp juice extract (CMJE) on diabetes-related problems in streptozotocin- (STZ-) induced type 2 diabetes, as well as the antioxidative functions of its natural compounds in regulating the associated genes and biochemical markers. CMJE's antioxidative properties were evaluated by the standard antioxidant assays of 1,1-diphenyl-2-picrylhydrazyl (DPPH), superoxide radical, nitric oxide, and ferrous ions along with the total phenolic and flavonoids content. The α-amylase inhibitory effect was measured by an established method. The antidiabetic effect of CMJE was assayed by fructose-fed STZ-induced diabetic models in albino rats. The obtained results were verified by bioinformatics-based network pharmacological tools: STITCH, STRING, GSEA, and Cytoscape plugin cytoHubba bioinformatics tools. The results showed that GC-MS-characterized compounds from CMJE displayed a very promising antioxidative potential. In an animal model study, CMJE significantly (P < 0.05) decreased blood glucose, serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), creatinine, uric acid, and lipid levels and increased glucose tolerance as well as glucose homeostasis (HOMA-IR and HOMA-b scores). The animal's body weights and relative organ weights were found to be partially restored. Tissue architectures of the pancreas and the kidney were remarkably improved by low doses of CMJE. Compound-protein interactions showed that thymine, catechol, and 5-hydroxymethylfurfural of CMJE interacted with 84 target proteins. Of the top 15 proteins found by Cytoscape 3.6.1, 8, CAT and OGG1 (downregulated) and CASP3, COMT, CYP1B1, DPYD, NQO1, and PTGS1 (upregulated), were dysregulated in diabetes-related kidney disease. The data demonstrate the highly prospective use of CMJE in the regulation of tubulointerstitial tissues of patients with diabetic nephropathy.
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18
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Prattichizzo F, de Candia P, Ceriello A. Diabetes and kidney disease: emphasis on treatment with SGLT-2 inhibitors and GLP-1 receptor agonists. Metabolism 2021; 120:154799. [PMID: 34029597 DOI: 10.1016/j.metabol.2021.154799] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/06/2021] [Accepted: 05/17/2021] [Indexed: 12/12/2022]
Abstract
Kidney disease is a frequent microvascular complication of both type 1 and type 2 diabetes. Historic trials have demonstrated that a tight glycaemic control is the most powerful approach to decrease the chances of developing diabetic nephropathy. However, having an HbA1c < 7% does not completely suppress the risk of kidney disease. The observed residual risk is likely ascribable to two phenomena: 1- the presence of risk factors and alterations additive to and independent of glycaemia, and 2- the activation of long-lasting imbalances by periods of exposure to uncontrolled glycemia, a phenomenon referred to as metabolic memory or legacy effect. Long-lasting oxidative stress, epigenetic alterations, cellular senescence, and the resulting chronic low-grade inflammation are all candidate mechanisms explaining the development of nephropathy despite proper control of risk factors. Recently, two classes of drugs, i.e. glucagon-like peptide (GLP) 1 receptor agonists (RA) and sodium-glucose transporter 2 inhibitors (SGLT-i) have changed this scenario. Indeed, cardiovascular outcome and other trials have clearly shown a renoprotective effect for these drugs, well-beyond their glucose-lowering properties. In this review, we summarize: 1- selected key trials and mechanisms underlying the development of diabetic kidney disease and 2- the results relative to renal endpoints in clinical trials of GLP-1 RA and SGLT-2i. Then, we briefly discuss some of the hypotheses posited to explain the marked renoprotective properties of these two classes, evidencing the still existing gaps in knowledge and proposing future directions to further implement the use of these powerful, disease-modifying drugs.
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19
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Simultaneous genotyping of rs3752462 and rs4821480 at non-muscle myosin-9 in diabetic nephropathy. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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20
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Zheng SS, He YM, Lu J. Noninvasive evaluation of diabetic patients with high fasting blood glucose using DWI and BOLD MRI. Abdom Radiol (NY) 2021; 46:1659-1669. [PMID: 32997155 DOI: 10.1007/s00261-020-02780-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/10/2020] [Accepted: 09/21/2020] [Indexed: 12/19/2022]
Abstract
PURPOSE To investigate the renal microstructure changes and hypoxia changes in type 2 diabetic patients and the relationship between them and glucose using both diffusion-weighted imaging (DWI) and blood oxygenation level-dependent magnetic resonance imaging (BOLD MRI). METHODS After measuring morning fasting blood glucose, DWI and BOLD MRI were performed in 57 patients with type 2 diabetes mellitus (DM group) and 14 healthy volunteers (NC group). According to the fasting blood glucose levels, diabetic patients were divided into a normoglycemic diabetes group (group A), a less hyperglycemic diabetes group (group B) and a more hyperglycemic diabetes group (group C). The renal parenchymal apparent diffusion coefficient (ADC), renal cortical R2* (CR2*), and medullary R2* (MR2*) were measured, and the R2* ratio between the medulla and cortex (MCR) was calculated. To test for differences in ADC, R2*, and MCR among the four groups, the data were analyzed by separate one-way ANOVAs. The correlations between ADC, R2*, and MCR and the clinical index of renal function were analyzed. RESULTS Groups B and C had significantly lower ADC values in the renal parenchyma (P = 0.048, 0.002) and significantly higher MR2* and MCR values (P < 0.000, P = 0.001, 0.001, and 0.005, respectively) than the NC group. ADC was negatively correlated with glucose, and MR2*, MCR and glucose showed a weak positive correlation. CONCLUSION DWI and BOLD may indirectly and qualitatively reflect the kidney microstructure status and hypoxia level of diabetic patients at different blood glucose levels to a certain extent, and possibly guide the clinical treatment of diabetic patients with different blood glucose levels.
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Affiliation(s)
- Shuang-Shuang Zheng
- Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
- Department of Radiology, Fuxing Hospital, Capital Medical University, Beijing, 100038, China
| | - Yue-Ming He
- Department of Radiology, Fuxing Hospital, Capital Medical University, Beijing, 100038, China
| | - Jie Lu
- Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
- Department of Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
- Beijing Key Laboratory of Magnetic Resonance Imaging and Brain Informatics, Beijing, 100053, China.
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21
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Hudlikar RR, Sargsyan D, Li W, Wu R, Zheng M, Kong AN. Epigenomic, Transcriptomic, and Protective Effect of Carotenoid Fucoxanthin in High Glucose-Induced Oxidative Stress in Mes13 Kidney Mesangial Cells. Chem Res Toxicol 2021; 34:713-722. [PMID: 33448797 DOI: 10.1021/acs.chemrestox.0c00235] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Diabetic nephropathy (DN) is the major cause of kidney related diseases in patients induced by high glucose (HG) affecting around 40% of type 1 and 2 diabetic patients. It is characterized by excessive inflammation inducing factors, reactive oxygen species (ROS) overproduction, and potential epigenomic related changes. Fucoxanthin (FX), a carotenoid found in brown seaweed, has a structure which includes an allenic bond and a 5,6-monoepoxide in the molecule, with strong antioxidant and anti-inflammatory activity. However, understanding of the impact of FX on DN was lacking. In this study we tested the early effects of high glucose (HG) on mouse mesangial kidney Mes13 cells, a potential in vitro cell culture model of DN. Our results show that HG induced oxidative stress on kidney mesangial Mes13 cells, while FX treatment attenuates the oxidative stress by decreasing the ROS, demonstrated by flow cytometry. Next, we utilized next-generation sequencing (NGS) to profile the HG-induced early epigenomic and transcriptomic changes in this in vitro DN model and the protective effects of FX. Differentially expressed genes (DEGs) and differentially methylated regions (DMRs) were analyzed using R software in HG and FX treated groups. Differential regulation of signaling pathways was studied using Reactome Pathway Analysis in the comparison. DEG analysis shows that novel biomarkers with specific pathways, including interleukin regulation, Toll-like receptor pathway, and PKA phosphorylation pathways, were found to be modulated by the FX treatment. TGF β 1i1 (TGFB 1i1), MAP-3-kinase-13(MAP3K13) involved in crucial cellular processes including glucose metabolism, phosphodiesterase regulation was methylated in HG, which was demethylated with FX treatment. Integrated transcriptomic and CpG methylome analysis of DEGs and DMRs revealed that genes like adenylate cyclase (Adcy7), calponin 1 (CNN1), potassium voltage-gated channel interacting protein 2 (KCNIP2), phosphatidylinositol-4-phosphate 5-kinase type 1 β (PIP5K1B), and transmembrane protein with EGF-like and two follistatin-like domains 1 (TMEFF1), which were modulated by FX in HG-exposed Mes13 cells, potentially modulate ion channel transport and glucose metabolism. In summary, our current study shows that novel early epigenomic and transcriptomic biomarkers were altered during the disease progression of HG-induced DN and that FX modified these alterations potentially contributing to the protective effects of mesangial cells from the HG-induced oxidative stress and damage.
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Affiliation(s)
- Rasika R Hudlikar
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Davit Sargsyan
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Wenji Li
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Renyi Wu
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Meinizi Zheng
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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Tiongco RE, Aguas IS, Cabrera FJ, Catacata M, Flake CC, Manao MA, Policarpio A. The role of the TNF-α gene -308 G/A polymorphism in the development of diabetic nephropathy: An updated meta-analysis. Diabetes Metab Syndr 2020; 14:2123-2129. [PMID: 33395772 DOI: 10.1016/j.dsx.2020.10.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 08/25/2020] [Accepted: 10/31/2020] [Indexed: 01/14/2023]
Abstract
BACKGROUND AND AIMS Several studies have tried to link the relationship of tissue necrosis factor-alpha (TNF-α) -308 G/A polymorphism with the development of diabetic nephropathy (DN). However, these studies failed to reach a consensus due to conflicting results. This meta-analysis was done to thoroughly investigate the correlation between the polymorphism and DN development. METHODS To carry out the objective, patients with type 2 diabetes mellitus (T2DM) were used as controls, while patients who developed DN were utilized as cases. Eight studies (i.e., published between 2007 and 2018) were included in the present meta-analysis. Review Manager 5.3 was used to compute for the odds ratios (OR) and 95% confidence interval (CI) of the overall and post-outlier outcomes. RESULTS Overall, an association between DN development and the -308 G/A polymorphism was observed. However, Galbraith's plot analysis (as analyzed using Meta-Essentials) led to the removal of two studies, which significantly reduced heterogeneity. Post-outlier outcomes show significant results in the allelic (OR: 1.23; 95% CI: 1.01-1.50; p = 0.04) and co-dominant (OR: 1.60; 95% CI: 1.02-2.51; p = 0.04) models. CONCLUSION T2DM individuals with the -308 G/A polymorphism in the TNF-α gene are more likely to develop DN.
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Affiliation(s)
- Raphael Enrique Tiongco
- Department of Medical Technology, College of Allied Medical Professions, Angeles University Foundation, Angeles City, Philippines.
| | - Imoan Shallom Aguas
- Department of Medical Technology, College of Allied Medical Professions, Angeles University Foundation, Angeles City, Philippines
| | - Franzielle Jowe Cabrera
- Department of Medical Technology, College of Allied Medical Professions, Angeles University Foundation, Angeles City, Philippines
| | - Miljun Catacata
- Department of Medical Technology, College of Allied Medical Professions, Angeles University Foundation, Angeles City, Philippines
| | - Chastene Christopher Flake
- Department of Medical Technology, College of Allied Medical Professions, Angeles University Foundation, Angeles City, Philippines
| | - Maria Angelica Manao
- Department of Medical Technology, College of Allied Medical Professions, Angeles University Foundation, Angeles City, Philippines
| | - Archie Policarpio
- Department of Medical Technology, College of Allied Medical Professions, Angeles University Foundation, Angeles City, Philippines
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23
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Bayoumy NMK, El-Shabrawi MM, Leheta OF, Abo El-Ela AEDM, Omar HH. Association of ELMO1 gene polymorphism and diabetic nephropathy among Egyptian patients with type 2 diabetes mellitus. Diabetes Metab Res Rev 2020; 36:e3299. [PMID: 32043290 DOI: 10.1002/dmrr.3299] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 01/04/2020] [Accepted: 01/22/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND OBJECTIVE Diabetic nephropathy (DN) is the most common cause of end stage renal failure or even death among patients with type 2 diabetes mellitus. Genetic predisposition is widely studied among these patients to identify manageable aspects of the disease pathogenesis. This study was carried out to test the association of engulfment and cell motility 1 (ELMO1) gene polymorphism with DN among Egyptians. ELMO1 is required for phagocytosis of apoptotic cells and cell motility. METHODS This case-control study was conducted on type 2 diabetic patients who attended Suez Canal University Hospital, Egypt, between November 2016 and October 2017. Peripheral blood was collected from 200 diabetic patients (without nephropathy), 200 patients with DN, and 100 healthy controls for DNA extraction. The single nucleotide polymorphism of ELMO1 (rs741301) was genotyped using real-time polymerase chain reaction and the allele discrimination technique. RESULTS GG genotype was significantly associated with DN (odds ratio [OR] = 2.7; 95% confidence interval [CI]: 1.4-5.3) (P = .016). The OR for the high-risk allele (G) was 1.9 with 95% CI from 1.5 to 2.9 (P < .001). CONCLUSION ELMO1 gene (rs741301) polymorphism is a candidate variant in the predisposition to DN.
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Affiliation(s)
- Nervana M K Bayoumy
- Physiology Department, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed M El-Shabrawi
- Clinical and Chemical Pathology Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Ola F Leheta
- Clinical and Chemical Pathology Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Alaa El-Din M Abo El-Ela
- Clinical and Chemical Pathology Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Hamdy H Omar
- Internal Medicine Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
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Hudec M, Dankova P, Solc R, Bettazova N, Cerna M. Epigenetic Regulation of Circadian Rhythm and Its Possible Role in Diabetes Mellitus. Int J Mol Sci 2020; 21:E3005. [PMID: 32344535 PMCID: PMC7215839 DOI: 10.3390/ijms21083005] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 04/14/2020] [Accepted: 04/21/2020] [Indexed: 12/11/2022] Open
Abstract
This review aims to summarize the knowledge about the relationship between circadian rhythms and their influence on the development of type 2 diabetes mellitus (T2DM) and metabolic syndrome. Circadian rhythms are controlled by internal molecular feedback loops that synchronize the organism with the external environment. These loops are affected by genetic and epigenetic factors. Genetic factors include polymorphisms and mutations of circadian genes. The expression of circadian genes is regulated by epigenetic mechanisms that change from prenatal development to old age. Epigenetic modifications are influenced by the external environment. Most of these modifications are affected by our own life style. Irregular circadian rhythm and low quality of sleep have been shown to increase the risk of developing T2DM and other metabolic disorders. Here, we attempt to provide a wide description of mutual relationships between epigenetic regulation, circadian rhythm, aging process and highlight new evidences that show possible therapeutic advance in the field of chrono-medicine which will be more important in the upcoming years.
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Affiliation(s)
- Michael Hudec
- Department of Medical Genetics, Third Faculty of Medicine, Charles University; Ruská 87, 100 00 Prague, Czech Republic; (N.B.); (M.C.)
| | - Pavlina Dankova
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University; Viničná 7, 128 00 Prague, Czech Republic; (P.D.); (R.S.)
| | - Roman Solc
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University; Viničná 7, 128 00 Prague, Czech Republic; (P.D.); (R.S.)
| | - Nardjas Bettazova
- Department of Medical Genetics, Third Faculty of Medicine, Charles University; Ruská 87, 100 00 Prague, Czech Republic; (N.B.); (M.C.)
| | - Marie Cerna
- Department of Medical Genetics, Third Faculty of Medicine, Charles University; Ruská 87, 100 00 Prague, Czech Republic; (N.B.); (M.C.)
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25
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Al-Hasani K, Khurana I, Farhat T, Eid A, El-Osta A. Epigenetics of Diabetic Nephropathy: From Biology to Therapeutics. EUROPEAN MEDICAL JOURNAL 2020. [DOI: 10.33590/emj/19-00137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Diabetic nephropathy (DN) is a lethal microvascular complication associated with Type 1 and Type 2 diabetes mellitus, and is the leading single cause of end-stage renal disease. Although genetic influences are important, epigenetic mechanisms have been implicated in several aspects of the disease. The current therapeutic methods to treat DN are limited to slowing disease progression without repair and regeneration of the damaged nephrons. Replacing dying or diseased kidney cells with new nephrons is an attractive strategy. This review considers the genetic and epigenetic control of nephrogenesis, together with the epigenetic mechanisms that accompany kidney development and recent advances in induced reprogramming and kidney cell regeneration in the context of DN.
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Affiliation(s)
- Keith Al-Hasani
- Department of Diabetes, Epigenetics in Human Health and Disease Laboratory, Monash University, Melbourne, Australia
| | - Ishant Khurana
- Department of Diabetes, Epigenetics in Human Health and Disease Laboratory, Monash University, Melbourne, Australia
| | - Theresa Farhat
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Assaad Eid
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Assam El-Osta
- Department of Diabetes, Epigenetics in Human Health and Disease Laboratory, Monash University, Melbourne, Australia; Department of Clinical Pathology, The University of Melbourne, Victoria, Australia; Faculty of Health, Department of Technology, Biomedical Laboratory Science, University College Copenhagen, Copenhagen, Denmark; Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, Hong Kong
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26
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Divers J, Ma L, Brown WM, Palmer ND, Choi Y, Israni AK, Pastan SO, Julian BA, Gaston RS, Hicks PJ, Reeves-Daniel AM, Freedman BI. Genome-wide association study for time to failure of kidney transplants from African American deceased donors. Clin Transplant 2020; 34:e13827. [PMID: 32080893 DOI: 10.1111/ctr.13827] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 01/30/2020] [Accepted: 02/12/2020] [Indexed: 01/05/2023]
Abstract
Two renal-risk variants in the apolipoprotein L1 gene (APOL1) in African American (AA) deceased donors (DD) are associated with shorter renal allograft survival after transplantation. To identify additional genes contributing to allograft survival, a genome-wide association study was performed in 532 AA DDs. Phenotypic data were obtained from the Scientific Registry of Transplant Recipients. Association and single-nucleotide polymorphism (SNP)-by-APOL1 interaction tests were conducted using death-censored renal allograft survival accounting for relevant covariates. Replication and inverse-variance-weighted meta-analysis were performed using data from 250 AA DD in the Genomics of Transplantation study. Accounting for APOL1, multiple SNPs near the Nudix Hydrolase 7 gene (NUDT7) showed strong independent effects (P = 1.6 × 10-8 -2.2 × 10-8 ). Several SNPs in the Translocation protein SEC63 homolog (SEC63; P = 2 × 10-9 -3.7 × 10-8 ) and plasmacytoma variant translocation 1 (PVT1) genes (P = 4.0 × 10-8 -7 × 10-8 ) modified the effect of APOL1 on allograft survival. SEC63 is expressed in human renal tubule cells and glomeruli, and PVT1 is associated with diabetic kidney disease. Overall, associations were detected for 41 SNPs (P = 2 × 10-9 -5 × 10-8 ) contributing independently or interacting with APOL1 to impact renal allograft survival after transplantation from AA DD. Given the small sample size of the discovery and replication sets, independent validations and functional genomic efforts are needed to validate these results.
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Affiliation(s)
- Jasmin Divers
- Division of Health Services Research, Department of Foundations of Medicine, NYU Long Island School of Medicine and NYU Winthrop Research Institute, Mineola, NY, USA
| | - Lijun Ma
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - William Mark Brown
- Department of Biostatistics and Data Science, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Nicholette D Palmer
- Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Young Choi
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Ajay K Israni
- Department of Medicine, Hennepin Healthcare, University of Minnesota, Minneapolis, MN, USA
| | - Stephen O Pastan
- Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Bruce A Julian
- University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Robert S Gaston
- University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Pamela J Hicks
- Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Amber M Reeves-Daniel
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Barry I Freedman
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC, USA
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Protein misfolding in endoplasmic reticulum stress with applications to renal diseases. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2020. [PMID: 31928726 DOI: 10.1016/bs.apcsb.2019.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Protein misfolding may be the result of a variety of different processes that disrupt the ability of a protein to form a thermodynamically stable tertiary structure that allows it to perform its proper function. In this chapter, we explore the nature of a protein's form that allows it to have a stable tertiary structure, and examine specific mutation that are known to occur in the coding regions of DNA that disrupt a protein's ability to be folded into a thermodynamically stable tertiary structure. We examine the consequences of these protein misfoldings in terms of the endoplasmic reticulum stress response and resulting unfolded protein response. These conditions are specifically related to renal diseases. Further, we explore novel therapeutics, pharmacological chaperones, that are being developed to alleviate the disease burden associated with protein misfolding caused by mutations. These interventions aim to stabilize protein folding intermediates and allow proper folding to occur as well as prevent protein aggregation and the resulting pathophysiological consequences.
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Noshahr ZS, Salmani H, Khajavi Rad A, Sahebkar A. Animal Models of Diabetes-Associated Renal Injury. J Diabetes Res 2020; 2020:9416419. [PMID: 32566684 PMCID: PMC7256713 DOI: 10.1155/2020/9416419] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 04/28/2020] [Indexed: 12/29/2022] Open
Abstract
Diabetic nephropathy (DN) is the main factor leading to end-stage renal disease (ESRD) and subsequent morbidity and mortality. Importantly, the prevalence of DN is continuously increasing in developed countries. Many rodent models of type 1 and type 2 diabetes have been established to elucidate the pathogenesis of diabetes and examine novel therapies against DN. These models are developed by chemical, surgical, genetic, drug, and diet/nutrition interventions or combination of two or more methods. The main characteristics of DN including a decrease in renal function, albuminuria and mesangiolysis, mesangial expansion, and nodular glomerulosclerosis should be exhibited by an animal model of DN. However, a rodent model possessing all of the abovementioned features of human DN has not yet been developed. Furthermore, mice of different genetic backgrounds and strains show different levels of susceptibility to DN with respect to albuminuria and development of glomerular and tubulointerstitial lesions. Therefore, the type of diabetes, development of nephropathy, duration of the study, cost of maintaining and breeding, and animals' mortality rate are important factors that might be affected by the type of DN model. In this review, we discuss the pros and cons of different rodent models of diabetes that are being used to study DN.
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Affiliation(s)
- Zahra Samadi Noshahr
- Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Salmani
- Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abolfazl Khajavi Rad
- Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Halal Research Center of IRI, FDA, Tehran, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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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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Umeukeje EM, Young BA. Genetics and ESKD Disparities in African Americans. Am J Kidney Dis 2019; 74:811-821. [PMID: 31606237 PMCID: PMC7373097 DOI: 10.1053/j.ajkd.2019.06.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 06/09/2019] [Indexed: 12/22/2022]
Abstract
African Americans have a 2- to 4-fold greater incidence of end-stage kidney disease (ESKD) than whites, which has long raised the possibility of a genetic cause for this disparity. Recent advances in genetic studies have shown a causal association of polymorphisms at the apolipoprotein L1 gene (APOL1) with the markedly increased risk for the nondiabetic component of the overall disparity in ESKD in African Americans. Although APOL1-associated kidney disease is thought to account for a substantial proportion of ESKD in African Americans, not all the increased risk for ESKD is accounted for, and a complete cataloging of disparities in genetic causes of ESKD eludes our current understanding of genetic-associated kidney disease. Genetic testing aids the screening, diagnosis, prognosis, and treatment of diseases with a genetic basis. Widespread use of genetic testing in clinical practice is limited by the small number of actionable genetic variants, limited health literacy of providers and patients, and underlying complex ethical, legal, and social issues. This perspective reviews racial and ethnic differences associated with genetic diseases and the development of ESKD in African Americans and discusses potential uncertainties associated with our current understanding of penetrance of genetically linked kidney disease and population-attributable risk percent.
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Affiliation(s)
- Ebele M Umeukeje
- Division of Nephrology, Vanderbilt University Medical Center, Nashville, TN; Vanderbilt Center for Kidney Disease, Nashville, TN
| | - Bessie A Young
- Nephrology, Hospital and Specialty Medicine and Center for Innovation for Veteran-Centered and Value Driven Care, Veterans Affairs Puget Sound Health Care System, Seattle, WA; Kidney Research Institute and Division of Nephrology, University of Washington, Seattle, WA.
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Nitta T, Kanoh H, Inamori KI, Suzuki A, Takahashi T, Inokuchi JI. Globo-series glycosphingolipids enhance Toll-like receptor 4-mediated inflammation and play a pathophysiological role in diabetic nephropathy. Glycobiology 2019; 29:260-268. [PMID: 30476082 DOI: 10.1093/glycob/cwy105] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/14/2018] [Accepted: 11/21/2018] [Indexed: 12/20/2022] Open
Abstract
Alteration of glycosphingolipid (GSL) expression plays key roles in the pathogenesis and pathophysiology of many important human diseases, including cancer, diabetes and glycosphingolipidosis. Inflammatory processes are involved in development and progression of diabetic nephropathy, a major complication of type 2 diabetes mellitus. GSLs are known to play roles in inflammatory responses in various diseases, and levels of renal GSLs are elevated in mouse models of diabetic nephropathy; however, little is known regarding the pathophysiological role of these GSLs in this disease process. We studied proinflammatory activity of GSLs in diabetic nephropathy using spontaneously diabetic mouse strain KK. Mice were fed a high-fat diet (HFD) (60% kcal from fat) or normal diet (ND) (4.6% kcal from fat) for a period of 8 wk. HFD-feeding resulted in quantitative and qualitative changes of renal globo-series GSLs (particularly Gb3Cer), upregulation of TNF-α, and induction of renal inflammation. Gb3Cer/Gb4Cer treatment enhanced inflammatory responses via TLR4 in TLR4/MD-2 complex expressing cells, including HEK293T, mouse bone marrow-derived macrophages (BMDMs) and human monocytes. Our findings suggest that HFD-induced increase of Gb3Cer/Gb4Cer positively modulate TLR4-mediated inflammatory response, and that such GSLs play an important pathophysiological role in diabetic nephropathy.
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Affiliation(s)
- Takahiro Nitta
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan.,Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Hirotaka Kanoh
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Kei-Ichiro Inamori
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Akemi Suzuki
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Tomoko Takahashi
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Jin-Ichi Inokuchi
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
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32
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Gu HF. Genetic and Epigenetic Studies in Diabetic Kidney Disease. Front Genet 2019; 10:507. [PMID: 31231424 PMCID: PMC6566106 DOI: 10.3389/fgene.2019.00507] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 05/08/2019] [Indexed: 01/19/2023] Open
Abstract
Chronic kidney disease is a worldwide health crisis, while diabetic kidney disease (DKD) has become the leading cause of end-stage renal disease (ESRD). DKD is a microvascular complication and occurs in 30–40% of diabetes patients. Epidemiological investigations and clinical observations on the familial clustering and heritability in DKD have highlighted an underlying genetic susceptibility. Furthermore, DKD is a progressive and long-term diabetic complication, in which epigenetic effects and environmental factors interact with an individual’s genetic background. In recent years, researchers have undertaken genetic and epigenetic studies of DKD in order to better understand its molecular mechanisms. In this review, clinical material, research approaches and experimental designs that have been used for genetic and epigenetic studies of DKD are described. Current information from genetic and epigenetic studies of DKD and ESRD in patients with diabetes, including the approaches of genome-wide association study (GWAS) or epigenome-wide association study (EWAS) and candidate gene association analyses, are summarized. Further investigation of molecular defects in DKD with new approaches such as next generation sequencing analysis and phenome-wide association study (PheWAS) is also discussed.
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Affiliation(s)
- Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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33
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Vlad C, Burlacu A, Florea L, Artene B, Badarau S, Covic A, Ureche C, Scripcariu D, Foia L, Covic A. A comprehensive review on apolipoproteins as nontraditional cardiovascular risk factors in end-stage renal disease: current evidence and perspectives. Int Urol Nephrol 2019; 51:1173-1189. [DOI: 10.1007/s11255-019-02170-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 05/09/2019] [Indexed: 12/17/2022]
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Gala-Błądzińska A, Czech J, Braun M, Skrzypa M, Gargasz K, Mazur A, Zawlik I. Association of 18bp insertion/deletion polymorphism, at -2549 position of VEGF gene, with diabetic vascular complications in type 2 diabetes mellitus. Adv Med Sci 2019; 64:137-143. [PMID: 30654317 DOI: 10.1016/j.advms.2018.08.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 05/29/2018] [Accepted: 08/31/2018] [Indexed: 01/13/2023]
Abstract
PURPOSE Diabetes mellitus type 2 (T2DM) and its vascular complications are a serious world health problem. For this reason it is important to look for new diabetes complication risk factors. The aim of this study was to determine whether 18-bp insertion/deletion (I/D) polymorphism at -2549 position of the vascular endothelial growth factor (VEGF) gene is associated with diabetic vascular complications (DVC). MATERIAL AND METHODS Caucasian subjects (n = 100) with T2DM were recruited for this study. Genotyping of the VEGF gene I/D polymorphism was done by the polymerase chain reaction (PCR) method. The results were correlated with laboratory and clinical data. RESULTS In our population heterozygous of the VEGF gene polymorphism was observed most frequently (57%). DVC were observed in 53 patients. Heterozygous T2DM patients significantly more often suffered from heart failure (HF) and stroke (p = 0.05). Amongst all the DVC, D allele of the VEGF polymorphism had a significantly increased risk of diabetic retinopathy (DR) (OR = 1.31; p = 0.033) irrespective of the duration of diabetes, BMI, the glycemia control expressed by HbA1c, renal function, lipid values or applied treatment. The studied polymorphism did not correlate with coronary heart disease, peripheral vascular disease, cardiovascular death, diabetic kidney disease or applied treatment. CONCLUSIONS The multivariate logistic regression analysis showed that the D allele in the promoter region of the VEGF gene is an independent risk factor of DR irrespective of other laboratory and clinical variables in T2DM patients. Our study suggests that I/D allele in the studied gene is associated with HF and strokes.
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Affiliation(s)
- Agnieszka Gala-Błądzińska
- Dialysis Center, St`Queen Jadwiga Clinical District Hospital No 2 in Rzeszów, Rzeszów, Poland; Faculty of Medicine, University of Rzeszów, Rzeszów, Poland.
| | - Joanna Czech
- Department of Genetics, Chair of Molecular Medicine, Faculty of Medicine, University of Rzeszów, Rzeszów, Poland; Laboratory of Molecular Biology, Centre for Innovative Research in Medical and Natural Sciences, Faculty of Medicine, University of Rzeszów, Rzeszów, Poland
| | - Marcin Braun
- Department of Pathology, Chair of Oncology, Medical University of Lodz, Lodz, Poland; Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Marzena Skrzypa
- Department of Genetics, Chair of Molecular Medicine, Faculty of Medicine, University of Rzeszów, Rzeszów, Poland; Laboratory of Molecular Biology, Centre for Innovative Research in Medical and Natural Sciences, Faculty of Medicine, University of Rzeszów, Rzeszów, Poland
| | - Krzysztof Gargasz
- Data Analysis Laboratory, Centre for Innovative Research in Medical and Natural Sciences, Faculty of Medicine, University of Rzeszów, Rzeszów, Poland
| | - Artur Mazur
- Faculty of Medicine, University of Rzeszów, Rzeszów, Poland
| | - Izabela Zawlik
- Department of Genetics, Chair of Molecular Medicine, Faculty of Medicine, University of Rzeszów, Rzeszów, Poland; Laboratory of Molecular Biology, Centre for Innovative Research in Medical and Natural Sciences, Faculty of Medicine, University of Rzeszów, Rzeszów, Poland
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Mihoubi E, Amroun H, Raache R, Bouldjennet F, Meçabih F, Azzouz M, Boudiba A, Mahgoun S, Akachouche M, Salhi N, Touil-Boukoffa C, Abbadi MC, Attal N. Human Leukocyte Antigens (HLA) Genes Association in Type 1 Diabetic Nephropathy. Endocr Metab Immune Disord Drug Targets 2019; 19:1157-1164. [PMID: 30806329 DOI: 10.2174/1871530319666190215143059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 12/29/2018] [Accepted: 01/31/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Diabetic nephropathy is a common worldwide multifactorial disease where involvement of genetic factors is well etablished. The aim of this study was to investigate the HLA genes implication in the development of type 1 diabetic nephropathy. METHODS We performed a case- control study where one hundred and fifty subjects were examined. Patients were divided in two groups; with and without type 1 diabetic nephropathy. HLA typing was performed using Polymerase Chain Reaction- Sequence Specific Oligonucleotide (PCR- SSO) method. HLA association to clinical phenotype and HLA haplotype analysis was also investigated. RESULTS HLA B*51 is increased in patients without type 1 diabetic nephropathy (7.14% vs. 0 %, P <0.05, OR= 0), however no other studied alleles seem to have any effect (all P>0.05). Haplotype analysis also does not reveal any significant association, however, A*02-B*18-DRB1*03-DQA1*05- DQB1*03 haplotype shows a tendency to be associated with the development of diabetic nephropathy (P = 0.05). CONCLUSION These results suggest a protective effect of HLA B*51 allele from type 1 diabetic nephropathy. However, further studies are required in order to clarify its potential implication as a protective marker.
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Affiliation(s)
- Esma Mihoubi
- Laboratory of Cellular and Molecular Biology, Cytokine and NO Synthase Team University of Science and Technology, Houari Boumediene (USTHB), Algiers, Algeria
| | - Habiba Amroun
- Central laboratory, Parnet Hospital, Algiers, Algeria
| | - Rachida Raache
- Laboratory of Cellular and Molecular Biology, Cytokine and NO Synthase Team University of Science and Technology, Houari Boumediene (USTHB), Algiers, Algeria
| | - Faiza Bouldjennet
- Laboratory of Cellular and Molecular Biology, Cytokine and NO Synthase Team University of Science and Technology, Houari Boumediene (USTHB), Algiers, Algeria
| | - Fethi Meçabih
- Immunology department, Pasteur Institute of Algiers, Algeria
| | - Malha Azzouz
- Diabetology department of Mustapha Pacha Hospital, Algiers, Algeria
| | - Aissa Boudiba
- Diabetology department of Mustapha Pacha Hospital, Algiers, Algeria
| | - Souad Mahgoun
- Diabetology department of Mohamed Lamine Debbaghine Hospital, Algiers , Algeria
| | | | - Nawel Salhi
- Immunology department, Pasteur Institute of Algiers, Algeria
| | - Chafia Touil-Boukoffa
- Laboratory of Cellular and Molecular Biology, Cytokine and NO Synthase Team University of Science and Technology, Houari Boumediene (USTHB), Algiers, Algeria
| | | | - Nabila Attal
- Immunology department, Pasteur Institute of Algiers, Algeria
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Hegazi MAM, Seleem A, EL-Adawy EH, Elhussini MEA. Association of IGF-I gene polymorphism with diabetic nephropathy in Egyptians with type 2 diabetes. THE EGYPTIAN JOURNAL OF INTERNAL MEDICINE 2018. [DOI: 10.4103/ejim.ejim_48_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Završnik M, Letonja J, Makuc J, Šeruga M, Cilenšek I, Petrovič D. Interleukin-4 (IL4) -590C/T (rs2243250) gene polymorphism is not associated with diabetic nephropathy (DN) in Caucasians with type 2 diabetes mellitus (T2DM). Bosn J Basic Med Sci 2018. [PMID: 29514038 DOI: 10.17305/bjbms.2018.2688] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Diabetic nephropathy (DN) is a microvascular complication that affects up to 40% of diabetic patients and can lead to end-stage kidney disease. Inflammatory cytokines such as interleukin 1 (IL-1), IL-6, IL-18 and tumor necrosis factor-α (TNFα) have been linked to the development and progression of DN. The aim of our study was to examine the relationship between interleukin-4 (IL4) -590C/T (rs2243250) gene polymorphism and DN in patients with type 2 diabetes mellitus (T2DM). This study is a continuation of our previous research on the association between angiotensinogen (AGT) gene polymorphisms and DN in patients with T2DM. We included 651 unrelated Slovenian (Caucasian) patients who had had T2DM for at least 10 years. The participants were classified into a group of T2DM patients with DN (276 cases) and a group without DN (375 controls). IL4 rs2243250 polymorphism was analyzed using a TaqMan SNP genotyping assay and StepOne Real-Time PCR System. The frequencies of rs2243250 TT, CT and CC (wild type) genotypes were 3.2%, 29.4% and 67.4%, respectively in patients with DN, and 2.7%, 34.4% and 62.9%, respectively in controls. Our logistic regression analysis adjusted for gender, age, diabetes duration, and glycated hemoglobin showed no association between rs2243250 and the risk for DN (OR 1.06; CI 0.37-3.05; p = 0.9). IL4 rs2243250 is not associated with DN in our subset of Slovenian patients with T2DM.
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Affiliation(s)
- Matej Završnik
- Department for Diabetes and Metabolic Diseases, Clinic for Internal Medicine, University Medical Centre Maribor, Maribor, Slovenia.
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Abdel-Motal UM, G A, Abdelalim EM, Ponnuraja C, Iken K, Jahromi M, Doss GP, El Bekay R, Zayed H. Prevalence of nephropathy in type 1 diabetes in the Arab world: A systematic review and meta-analysis. Diabetes Metab Res Rev 2018; 34:e3026. [PMID: 29774648 DOI: 10.1002/dmrr.3026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 04/13/2018] [Accepted: 05/07/2018] [Indexed: 11/08/2022]
Abstract
The aim of this study was to conduct a systematic review and meta-analysis and determine the prevalence of diabetic nephropathy (DN) among Arab patients with T1D. A systematic literature search was conducted using 4 different literature databases (PubMed, ScienceDirect, Web of Science, and Embase) to capture all relevant data about Arab patients with T1D that had DN. Meta-analysis and systematic review were performed using the random effect model, and the heterogeneity of the studies was assessed using the Q-test, I2, and Tau-squared statistics. Publication bias was assessed using the funnel-plot test. Our search strategy captured 372 studies in only 10 out of the 22 Arab countries in a period of 48 years (1969-2017); of which, 41 met our inclusion criteria for full article analysis, of those, 15 were eligible for meta-analysis. We estimated the prevalence of DN among Arab people with T1D to be 18.2% (95% confidence interval 13.1%-24.8%). In conclusion, DN prevalence is underexplored among Arab patients with T1D and represents a significant risk for the well-being of Arab patients with T1D. Therefore, there is an urgent need for comprehensive epidemiological studies for DN among Arab patients with T1D.
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Affiliation(s)
- Ussama M Abdel-Motal
- Division of Translational Medicine, Research Branch, Sidra Medicine, Doha, Qatar
| | - Akila G
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
| | - Essam M Abdelalim
- Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Chinnaiyan Ponnuraja
- Department of Statistics, National Institute for Research in Tuberculosis, Chennai, India
| | - Khadija Iken
- Department of Medicine/Paediatrics', Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - George Priya Doss
- Department of Integrative Biology, School of Biosciences and Technology, VIT University, Vellore, India
| | - Rajaa El Bekay
- CIBER Pathophysiology of obesity and nutrition CB06/03, Carlos III Health Institute. Unidad de Gestion Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, Málaga, Spain
| | - Hatem Zayed
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
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Grosjean F, Yubero-Serrano EM, Zheng F, Esposito V, Swamy S, Elliot SJ, Cai W, Vlassara H, Salem F, Striker GE. Pharmacologic control of oxidative stress and inflammation determines whether diabetic glomerulosclerosis progresses or decreases: A pilot study in sclerosis-prone mice. PLoS One 2018; 13:e0204366. [PMID: 30252878 PMCID: PMC6155507 DOI: 10.1371/journal.pone.0204366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 09/05/2018] [Indexed: 11/18/2022] Open
Abstract
Diabetic kidney disease (DKD) is characterized by progressive glomerulosclerosis (GS). ROP mice have a sclerosis-prone phenotype. However, they develop severe, rapidly progressive GS when rendered diabetic. Since GS also develops in aged C57Bl6 mice, and can be reversed using bone marrow from young mice which have lower oxidative stress and inflammation (OS/Infl), we postulated that this might also apply to DKD. Therefore, this pilot study asked whether reducing OS/Infl in young adult sclerosis-prone (ROP) diabetic mice leads to resolution of existing GS in early DKD using safe, FDA-approved drugs.After 4 weeks of stable streptozotocin-induced hyperglycemia 8-12 week-old female mice were randomized and treated for 22 weeks as follows: 1) enalapril (EN) (n = 8); 2) pyridoxamine (PYR)+EN (n = 8); 3) pentosan polysulfate (PPS)+EN (n = 7) and 4) PPS+PYR+EN (n = 7). Controls were untreated (non-DB, n = 7) and hyperglycemic (DB, n = 8) littermates. PPS+PYR+EN reduced albuminuria and reversed GS in DB. Treatment effects: 1) Anti-OS/Infl defenses: a) PPS+PYR+EN increased the levels of SIRT1, Nrf2, estrogen receptor α (ERα) and advanced glycation endproduct-receptor1 (AGER1) levels; and b) PYR+EN increased ERα and AGER1 levels. 2) Pro-OS/Infl factors: a) PPS+PYR+EN reduced sTNFR1, b) all except EN reduced MCP1, c) RAGE was reduced by all treatments. In summary, PYR+PPS+EN modulated GS in sclerosis-prone hyperglycemic mice. PYR+PPS+EN also decreased albuminuria, OS/Infl and the sclerosis-prone phenotype. Thus, reducing OS/Infl may reverse GS in early diabetes in patients, and albuminuria may allow early detection of the sclerosis-prone phenotype.
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Affiliation(s)
- Fabrizio Grosjean
- Division of Nephrology, Dialysis and Transplantation, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Elena M. Yubero-Serrano
- Lipids and Atherosclerosis Unit, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, and CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- * E-mail:
| | - Feng Zheng
- Division of Nephrology and Basic Science Laboratory, Union Hospital Fujian Medical University, Fuzhou, Fujian, China
| | - Vittoria Esposito
- Unit of Nephrology and Dialysis, Fondazione IRCCS Salvatore Maugeri, Pavia, Italy
| | - Shobha Swamy
- Division of Pulmonary, Allergy and Critical Care, Department of Medicine, University of Alabama School of Medicine, Birmingham, Alabama, United States of America
| | - Sharon J. Elliot
- Department of Surgery, School of Medicine, University of Miami, Miami, Florida, United States of America
| | - Weijing Cai
- Division of Experimental Diabetes and Aging, Department of Geriatrics, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Helen Vlassara
- Division of Experimental Diabetes and Aging, Department of Geriatrics, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Fadi Salem
- Department of Pathology, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, Annenberg 15–235, New York, New York, United States of America
| | - Gary E. Striker
- Division of Experimental Diabetes and Aging, Department of Geriatrics and Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
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Fathy SA, Mohamed MR, Ali MAM, El-Helaly AE, Alattar AT. Influence of IL-6, IL-10, IFN-γ and TNF-α genetic variants on susceptibility to diabetic kidney disease in type 2 diabetes mellitus patients. Biomarkers 2018; 24:43-55. [PMID: 30015512 DOI: 10.1080/1354750x.2018.1501761] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Data from previous studies on the role of inflammatory cytokines as biomarkers for diabetic kidney disease (DKD) are contradictory. The association of a particular inflammatory cytokine single nucleotide polymorphism (SNP) with susceptibility to DKD has not been consistently replicated. We aimed to investigate the utility of inflammatory cytokines as biomarkers for DKD in type 2 diabetes mellitus (T2DM) patients. Association of inflammatory cytokine gene SNPs with the development of DKD was also explored. SUBJECTS AND METHODS One hundred and fifty-nine Kuwaiti subjects were recruited in this study, including 50 T2DM patients without DKD, 67 diabetic DKD patients and 42 healthy subjects. Plasma levels of interleukin-6 (IL-6), IL-10, interferon gamma (IFN-γ) and tumor necrosis factor alpha (TNF-α) were measured by enzyme-linked immunosorbent assays. Nine SNPs, including 2 SNPs in IL-6, 3 SNPs in IL-10, 1 SNP in IFN-γ and 3 SNPs in TNF-α, were genotyped using TaqMan SNP genotyping assays. RESULTS Diabetic DKD patients showed higher IL-6, IL-10, IFN-γ and TNF-α levels than those without DKD. Diabetic DKD patients had a significantly higher frequency of IL-10 - 1082 A allele than those without DKD (p = 0.001). No significant association of IL-6 - 174/-597 haplotypes with DKD risk was detected (p = 0.188). Distribution of IL-10 - 592/-819/-1082 haplotypes differ significantly between T2DM patients with/without DKD (p = 0.014). Diabetic DKD patients had a significantly lower frequency of IL-10 - 592C/-819C/-1082G haplotype than those without DKD (p = 0.002). CONCLUSIONS Although inflammatory cytokine genotypes and, more importantly, haplotypes may have the potential to identify those patients at risk of DKD, hence, improving DKD predisposition prediction, further investigations regarding their real clinical significance is warranted in a large cohort of patients.
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Affiliation(s)
- Shadia A Fathy
- a Department of Biochemistry, Faculty of Science , Ain Shams University , Cairo , Egypt
| | - Mohamed R Mohamed
- a Department of Biochemistry, Faculty of Science , Ain Shams University , Cairo , Egypt
| | - Mohamed A M Ali
- a Department of Biochemistry, Faculty of Science , Ain Shams University , Cairo , Egypt
| | - Ashraf E El-Helaly
- b Medical Laboratories Department , Amiri Hospital , Kuwait city , Kuwait
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Affiliation(s)
- Jose C Florez
- Center for Human Genetic Research and Diabetes Research Center, Diabetes Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA; The Broad Institute of Massachusetts Institute of Technology, Harvard, Cambridge, MA.
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Synergistical action of the β2 adrenoceptor and fatty acid binding protein 2 polymorphisms on the loss of glomerular filtration rate in Chinese patients with type 2 diabetic nephropathy. Int Urol Nephrol 2018; 50:715-723. [PMID: 29404926 DOI: 10.1007/s11255-018-1812-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 01/29/2018] [Indexed: 10/18/2022]
Abstract
PURPOSE Since altered sympathetic nerve activity and insulin resistance are implicated in the pathogenesis of type 2 diabetic nephropathy, we investigated the effect of polymorphic Arg16Gly and Gln27Glu in the β2 adrenoceptor gene and Ala54Thr in the fatty acid binding protein 2 gene on the estimated glomerular filtration rate (eGFR) in Chinese patients with the above disease. METHODS A total of 552 diabetic subjects recruited from annual health examinations were studied. The eGFR was calculated from the Modification of Diet in Renal Disease equation for the Chinese. Plasma norepinephrine level and genotype were determined by high-performance liquid chromatography-tandem mass spectrometry and TaqMan method, respectively. Holter-derived heart rate viability (HRV) and the MRI-generated renal apparent diffusion coefficient (ADC) were evaluated. RESULTS The Gly16Gly and Thr54Thr homozygotes had significantly higher microalbuminuria and lower eGFR against other genotypes in their individual polymorphism. Besides, the Gly16Gly variant exhibited markedly elevated norepinephrine level, whereas indicative of insulin resistance was increased in the Thr54Thr one. Multiple linear regression analysis further confirmed the independent genetic effect on the eGFR. Moreover, multifactor dimensionality reduction method detected a gene-gene synergistic action that subjects with the Gly16Gly/Thr54Thr genotype were exposed to higher risk of eGFR loss. Finally, these findings were accompanied by lower HRV and ADC, indicating sympathetically mediated hemodynamic changes. CONCLUSIONS By uncovering the genetic component of the coherent interplay between the elevated sympathetic nerve activity and metabolic disorders, our observations might promote the development of novel personalized prevention and management strategies against the diabetic nephropathy, especially in the genetically susceptible individuals.
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Increased levels of circulating (TNF-α) is associated with (-308G/A) promoter polymorphism of TNF-α gene in Diabetic Nephropathy. Int J Biol Macromol 2018; 107:2113-2121. [DOI: 10.1016/j.ijbiomac.2017.10.078] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 10/06/2017] [Accepted: 10/13/2017] [Indexed: 12/21/2022]
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Zhao H, Ma L, Yan M, Wang Y, Zhao T, Zhang H, Liu P, Liu Y, Li P. Association between MYH9 and APOL1 Gene Polymorphisms and the Risk of Diabetic Kidney Disease in Patients with Type 2 Diabetes in a Chinese Han Population. J Diabetes Res 2018; 2018:5068578. [PMID: 29862302 PMCID: PMC5971321 DOI: 10.1155/2018/5068578] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 04/01/2018] [Indexed: 11/26/2022] Open
Abstract
Single-nucleotide polymorphisms (SNPs) in MYH9-APOL1 gene regions have been reported to be associated with diabetic kidney disease (DKD) in the American population. We examined the association between polymorphisms in MYH9-APOL1 and DKD susceptibility in a Chinese Han population. MYH9 rs3752462 (T>C) and APOL1 rs136161 (C>G) were genotyped in 303 DKD patients and 364 type 2 diabetes mellitus (T2DM) patients without kidney disease using the TaqMan SNP genotyping assay. Chi-squared test and multivariate logistic regression were used to evaluate the association. We observed that only MYH9 rs3752462 was associated with DKD (genotype, P = 0.004; allele, P = 0.002). Genetic model analysis revealed that rs3752462 was associated with increased risk of DKD under a dominant model adjusted by age and sex (adjusted odds ratio (aOR), 1.675; 95% CI 1.225-2.289; P = 0.001) and an additive model (TC versus TT: aOR, 1.649; 95% CI 1.187-2.290; CC versus TT: aOR, 1.817; 95% CI 0.980-3.367; P = 0.005). The combined effect of rs3752462 TC + rs136161 CC genotype showed an association of DKD adjusted by age and sex (aOR, 1.732; 95% CI 1.128-2.660; P = 0.012). After a Holm-Bonferroni correction for multiple tests, the C allele frequencies of the rs3752462 and the TC + CC genotype in the dominant model were considered statistically significant with a markedly increased risk of DKD (P < 0.00208; P < 0.002). Our results suggest that MYH9 rs3752462 is significantly associated with an increased risk of DKD in Chinese Han individuals.
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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
| | - Liang Ma
- Clinical Laboratory, 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
| | - Yan Wang
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Tingting 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
| | - Peng Liu
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yanzhen Liu
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, 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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Cao L, Liu Y, Zhang L, Wei Y. Role of poly (ADP-ribose) polymerase-1 and cytokines in acute renal injury in elderly Chinese patients with diabetes mellitus. Clin Interv Aging 2017; 12:2039-2045. [PMID: 29238179 PMCID: PMC5713704 DOI: 10.2147/cia.s142102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Objective The primary objective of this study was to evaluate whether the polymorphism of poly (ADP-ribose) polymerase-1 (PARP-1) is involved as a potential risk factor in the development of acute renal injury in elderly Chinese patients with diabetes mellitus. Subjects and methods In this pilot study, diabetic patients of either gender (aged ≥65 years) with a confirmed diagnosis of acute renal injury and individuals with no clinical symptoms of acute renal injury were enrolled at Nanxishan Hospital of Guangxi Zhuang Autonomous Region, China. Genetic polymorphism of PARP-1 was assessed using polymerase chain reaction-restriction fragment length polymorphism assay. Cytokine levels (interleukin [IL]-6, IL-1β and tumor necrosis factor-alpha) were measured in the serum samples by sandwich enzyme-linked immunosorbent assay technique. Results A total of 130 Chinese patients with acute renal injury and 130 Chinese individuals with no clinical symptoms of acute renal injury were included. We found that the patients with GG genotype and carriers of the G and C alleles of PARP-1 were at high risk of developing acute renal injury. Moreover, del/ins polymorphism of the NF-κB1 gene was also found to be associated with acute renal injury. In addition, the levels of IL-6, IL-1β and tumor necrosis factor-alpha were significantly increased in patients with acute renal injury (p<0.05). Conclusion Our findings showed the involvement of PARP-1 polymorphisms in the development of acute renal injury in Chinese individuals. This study identified the involvement of two SNPs of PARP-1 (C410T and G1672A) in development of acute renal injury among Chinese diabetic patients. Also, increased expression of C and G alleles of PARP-1 can be considered as one of the potential risk factors for developing acute renal injury. Increased serum cytokine levels can be considered as one of the potential risk factors for developing acute renal injury.
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Affiliation(s)
- Li Cao
- Intensive Medicine, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, Guangxi, China
| | - Yan Liu
- Intensive Medicine, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, Guangxi, China
| | - Li Zhang
- Intensive Medicine, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, Guangxi, China
| | - Yanfei Wei
- Intensive Medicine, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, Guangxi, China
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Satirapoj B. Sodium-Glucose Cotransporter 2 Inhibitors with Renoprotective Effects. KIDNEY DISEASES (BASEL, SWITZERLAND) 2017; 3:24-32. [PMID: 28785561 PMCID: PMC5527177 DOI: 10.1159/000471765] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/17/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND Diabetes is the leading cause of end-stage renal disease (ESRD) and accounts for 40-50% of patients requiring renal replacement therapy. The main pathophysiology of diabetic nephropathy comprises glucose-dependent pathways, hemodynamic pathways, and genetic factors. SUMMARY Glucose-dependent pathways, known as advanced glycation, polyols, and protein kinase C activation have been implicated in the pathogenesis of diabetic nephropathy. Current studies have indicated that intensified glycemic control retards the rate of development of albuminuria and impairs renal function in both patients with type 1 and 2 diabetes. However, therapeutic options have substantially increased over the last decade, but have not yet been translated to remarkably reduce the incidence of ESRD from diabetic nephropathy. Sodium-glucose cotransporter 2 (SGLT2) inhibitors are a novel class of glucose-lowering agents with potential renoprotective effects. KEY MESSAGE SGLT2 inhibitors represent a promising therapeutic approach to prevent and improve nephropathy among patients with type 2 diabetes. The current data strongly support that SGLT2 inhibitors have renoprotective properties not only by improving glycemic control but also through hemodynamic and nonhemodynamic renal effects. This review focuses on the latest published data dealing with hypoglycemic agents and SGLT2 inhibitors regarding the progression of kidney disease.
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Affiliation(s)
- Bancha Satirapoj
- Division of Nephrology, Phramongkutklao Hospital and College of Medicine, Bangkok, Thailand
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47
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Vikulova OK, Zheleznyakova AV, Lebedeva NO, Nikitin AG, Nosikov VV, Shestakova MV. Genetic factors in the development of chronic kidney disease in patients with diabetes mellitus. RUSS J GENET+ 2017. [DOI: 10.1134/s1022795417030140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ajiboye O, Segal JB. National trends in the treatment of diabetic nephropathy in the United States. J Clin Pharm Ther 2017; 42:311-317. [PMID: 28295491 DOI: 10.1111/jcpt.12516] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 02/09/2017] [Indexed: 12/21/2022]
Affiliation(s)
- O. Ajiboye
- Johns Hopkins Bloomberg School of Public Health; Baltimore MD USA
| | - J. B. Segal
- Center for Drug Safety and Effectiveness; Johns Hopkins Bloomberg School of Public Health; Baltimore MD USA
- Division of General Internal Medicine; Johns Hopkins Hospital; Baltimore MD USA
- Department of Epidemiology; Johns Hopkins Bloomberg School of Public Health; Baltimore MD USA
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49
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Završnik M, Kariž S, Makuc J, Šeruga M, Cilenšek I, Petrovič D. PECAM-1 Leu125Val (rs688) Polymorphism and Diabetic Nephropathy in Caucasians with Type 2 Diabetes Mellitus. Anal Cell Pathol (Amst) 2016; 2016:3152967. [PMID: 28116228 PMCID: PMC5225318 DOI: 10.1155/2016/3152967] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 12/07/2016] [Indexed: 12/30/2022] Open
Abstract
Objectives. Platelet endothelial cell adhesion molecule-1 (PECAM-1) plays a key role in the transendothelial migration of circulating leukocytes during inflammation and in the maintenance of vascular endothelial integrity. We hypothesized that genetic variation in PECAM-1 gene could be associated with diabetic nephropathy (DN) and with the level of soluble PECAM-1 in Caucasians with type 2 diabetes mellitus (T2DM). Design and Methods. We analyzed the rs688 single nucleotide polymorphism of PECAM-1 gene C373G (Leu125Val) at exon 3, which encodes the first extracellular Ig-like domain that mediates the homophilic binding of PECAM-1, in 276 T2DM subjects with documented DN (cases) and 375 T2DM subjects without DN (controls), using a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) strategy. Level of plasma soluble PECAM-1 (sPECAM-1) was measured by ELISA in a subpopulation of 120 diabetics with DN. Results. We found no association between the Leu125Val polymorphism and DN in subjects with T2DM. Likewise, the Leu125Val polymorphism was not associated with serum sPECAM-1 levels in a subpopulation of 120 diabetics with DN. Conclusion. The Leu125Val polymorphism of PECAM-1 and the level of sPECAM-1 are not associated with DN in T2DM subjects of Slovenian origin.
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Affiliation(s)
- Matej Završnik
- University Medical Centre Maribor, Clinic for Internal Medicine, Department for Diabetes and Metabolic Diseases, Maribor, Slovenia
| | - Stojan Kariž
- General Hospital Izola, Department of Internal Medicine, Izola, Slovenia
| | - Jana Makuc
- General Hospital Slovenj Gradec, Department of Internal Medicine, Slovenj Gradec, Slovenia
| | - Maja Šeruga
- General Hospital Murska Sobota, Department of Internal Medicine, Murska Sobota, Slovenia
| | - Ines Cilenšek
- Faculty of Medicine, Institute of Histology and Embryology, University of Ljubljana, Ljubljana, Slovenia
| | - Daniel Petrovič
- Faculty of Medicine, Institute of Histology and Embryology, University of Ljubljana, Ljubljana, Slovenia
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Østergaard MV, Pinto V, Stevenson K, Worm J, Fink LN, Coward RJM. DBA2J db/db mice are susceptible to early albuminuria and glomerulosclerosis that correlate with systemic insulin resistance. Am J Physiol Renal Physiol 2016; 312:F312-F321. [PMID: 27852608 DOI: 10.1152/ajprenal.00451.2016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 10/26/2016] [Accepted: 11/09/2016] [Indexed: 12/12/2022] Open
Abstract
Diabetic nephropathy (DN) is the leading cause of kidney failure in the world. To understand important mechanisms underlying this condition, and to develop new therapies, good animal models are required. In mouse models of type 1 diabetes, the DBA/2J strain has been shown to be more susceptible to develop kidney disease than other common strains. We hypothesized this would also be the case in type 2 diabetes. We studied db/db and wild-type (wt) DBA/2J mice and compared these with the db/db BLKS/J mouse, which is currently the most widely used type 2 DN model. Mice were analyzed from age 6 to 12 wk for systemic insulin resistance, albuminuria, and glomerular histopathological and ultrastructural changes. Body weight and nonfasted blood glucose were increased by 8 wk in both genders, while systemic insulin resistance commenced by 6 wk in female and 8 wk in male db/db DBA/2J mice. The urinary albumin-to-creatinine ratio (ACR) was closely linked to systemic insulin resistance in both sexes and was increased ~50-fold by 12 wk of age in the db/db DBA/2J cohort. Glomerulosclerosis, foot process effacement, and glomerular basement membrane thickening were observed at 12 wk of age in db/db DBA/2J mice. Compared with db/db BLKS/J mice, db/db DBA/2J mice had significantly increased levels of urinary ACR, but similar glomerular histopathological and ultrastructural changes. The db/db DBA/2J mouse is a robust model of early-stage albuminuric DN, and its levels of albuminuria correlate closely with systemic insulin resistance. This mouse model will be helpful in defining early mechanisms of DN and ultimately the development of novel therapies.
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Affiliation(s)
- Mette V Østergaard
- Global Research, Novo Nordisk, Måløv, Denmark.,Bristol Renal, School of Clinical Sciences, University of Bristol, Bristol, United Kingdom; and
| | - Vanda Pinto
- Bristol Renal, School of Clinical Sciences, University of Bristol, Bristol, United Kingdom; and
| | - Kirsty Stevenson
- Department of Biochemistry, Bristol Royal Infirmary, Bristol, United Kingdom
| | - Jesper Worm
- Global Research, Novo Nordisk, Måløv, Denmark
| | | | - Richard J M Coward
- Bristol Renal, School of Clinical Sciences, University of Bristol, Bristol, United Kingdom; and
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