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Chinnappa S, Maqbool A, Viswambharan H, Mooney A, Denby L, Drinkhill M. Beta Blockade Prevents Cardiac Morphological and Molecular Remodelling in Experimental Uremia. Int J Mol Sci 2023; 25:373. [PMID: 38203544 PMCID: PMC10778728 DOI: 10.3390/ijms25010373] [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: 11/21/2023] [Revised: 12/18/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
Heart failure and chronic kidney disease (CKD) share several mediators of cardiac pathological remodelling. Akin to heart failure, this remodelling sets in motion a vicious cycle of progressive pathological hypertrophy and myocardial dysfunction in CKD. Several decades of heart failure research have shown that beta blockade is a powerful tool in preventing cardiac remodelling and breaking this vicious cycle. This phenomenon remains hitherto untested in CKD. Therefore, we set out to test the hypothesis that beta blockade prevents cardiac pathological remodelling in experimental uremia. Wistar rats had subtotal nephrectomy or sham surgery and were followed up for 10 weeks. The animals were randomly allocated to the beta blocker metoprolol (10 mg/kg/day) or vehicle. In vivo and in vitro cardiac assessments were performed. Cardiac tissue was extracted, and protein expression was quantified using immunoblotting. Histological analyses were performed to quantify myocardial fibrosis. Beta blockade attenuated cardiac pathological remodelling in nephrectomised animals. The echocardiographic left ventricular mass and the heart weight to tibial length ratio were significantly lower in nephrectomised animals treated with metoprolol. Furthermore, beta blockade attenuated myocardial fibrosis associated with subtotal nephrectomy. In addition, the Ca++- calmodulin-dependent kinase II (CAMKII) pathway was shown to be activated in uremia and attenuated by beta blockade, offering a potential mechanism of action. In conclusion, beta blockade attenuated hypertrophic signalling pathways and ameliorated cardiac pathological remodelling in experimental uremia. The study provides a strong scientific rationale for repurposing beta blockers, a tried and tested treatment in heart failure, for the benefit of patients with CKD.
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Affiliation(s)
- Shanmugakumar Chinnappa
- Department of Nephrology, Doncaster and Bassetlaw Teaching Hospitals NHS Trust, Doncaster DN2 5LT, UK
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), University of Leeds, Leeds LS2 9JT, UK; (A.M.); (H.V.)
| | - Azhar Maqbool
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), University of Leeds, Leeds LS2 9JT, UK; (A.M.); (H.V.)
| | - Hema Viswambharan
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), University of Leeds, Leeds LS2 9JT, UK; (A.M.); (H.V.)
| | - Andrew Mooney
- Department of Nephrology, Leeds Teaching Hospitals NHS Trust, Leeds LS9 7TF, UK;
| | - Laura Denby
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK;
| | - Mark Drinkhill
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), University of Leeds, Leeds LS2 9JT, UK; (A.M.); (H.V.)
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Ou Yang XL, Ni SH, Li J, Zhang XJ, Li SJ, Li Y, Sun SN, He XL, Long WJ, Wang LJ, Yang ZQ, Lu L. Association of carbohydrate intake from different sources with all-cause and cardiovascular mortality among chronic kidney disease populations: assessment of 1999-2018 National Health and Nutrition Examination Survey participation. Int J Food Sci Nutr 2023; 74:781-795. [PMID: 37654095 DOI: 10.1080/09637486.2023.2253005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 09/02/2023]
Abstract
This study analysed the data from the NHANES (1999-2018) to examine how different sources of carbohydrate intake affected the all-cause and cardiovascular mortality of 11,302 chronic kidney disease (CKD) patients. The data were adjusted for other factors using various methods. The results showed that CKD patients (stages 1-2 and 3-5) who consumed more carbohydrates from whole grains, fruits, vegetables and less carbohydrates from fruit juice or sauces had lower mortality rates. Replacing fat intake with carbohydrates from whole grains (HR = 0.86[0.78-0.95]), fruits (raw) (HR = 0.79[0.70-0.88]) and non-starchy vegetables (HR = 0.82[0.70-0.96]), but not protein intake, was linked to lower all-cause mortality. The fibre content in carbohydrates might partly account for the benefits of selected carbohydrate intake. This study provided practical recommendations for optimising the carbohydrate sources in CKD patients.
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Affiliation(s)
- Xiao-Lu Ou Yang
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
| | - Shi-Hao Ni
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
| | - Jin Li
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
| | - Xiao-Jiao Zhang
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
| | - Si-Jing Li
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
| | - Yue Li
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
| | - Shu-Ning Sun
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
| | - Xing-Ling He
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
| | - Wen-Jie Long
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
| | - Ling-Jun Wang
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
| | - Zhong-Qi Yang
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
| | - Lu Lu
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
- Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province, Guangzhou University of Chinese Medicine, Guangzhou, P.R.China
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Lu YY, Li SJ, Zhang Z, He S, Guo YT, Hong MN, Shao S, Wang RQ, Zhang J, Wang JG, Gao PJ, Li XD. C-atrial natriuretic peptide (ANP) 4-23 attenuates renal fibrosis in deoxycorticosterone-acetate-salt hypertensive mice. Exp Cell Res 2023; 431:113738. [PMID: 37572787 DOI: 10.1016/j.yexcr.2023.113738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 06/08/2023] [Accepted: 08/04/2023] [Indexed: 08/14/2023]
Abstract
Epithelial-mesenchymal transition (EMT) plays a critical role in hypertension-induced renal fibrosis, a final pathway that leads to end-stage renal failure. C-Atrial natriuretic peptide (ANP)4-23, a specific agonist of natriuretic peptide receptor-C (NPR-C), has been reported to have protective effects against hypertension. However, the role of C-ANP4-23 in hypertension-associated renal fibrosis has not yet been elucidated. In this study, mice were randomly divided into SHAM group, DOCA-salt group and DOCA-salt + C-ANP4-23 group. Renal morphology changes, renal function and fibrosis were detected. Human proximal tubular epithelial cells (HK2) stimulated by aldosterone were used for cell function and mechanism study. The DOCA-salt treated mice exhibited hypertension, kidney fibrosis and renal dysfunction, which were attenuated by C-ANP4-23. Moreover, C-ANP4-23 inhibited DOCA-salt treatment-induced renal EMT as evidenced by decrease of the mesenchymal marker alpha-smooth muscle actin (ACTA2) and vimentin and increase of epithelial cell marker E-cadherin. In HK2 cells, aldosterone induced EMT response, which was also suppressed by C-ANP4-23. The key transcription factors (twist, snail, slug and ZEB1) involved in EMT were increased in the kidney of DOCA-salt-treated mice, which were also suppressed by C-ANP4-23. Mechanistically, C-ANP4-23 inhibited the aldosterone-induced translocation of MR from cytosol to nucleus without change of MR expression. Furthermore, C-ANP4-23 rescued the enhanced expression of NADPH oxidase (NOX) 4 and oxidative stress after aldosterone stimulation. Aldosterone-induced Akt and Erk1/2 activation was also suppressed by C-ANP4-23. Our data suggest that C-ANP4-23 attenuates renal fibrosis, likely through inhibition of MR activation, enhanced oxidative stress and Akt and Erk1/2 signaling pathway.
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Affiliation(s)
- Yuan-Yuan Lu
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China; Shanghai Geriatric Medical Center, Shanghai, China; Division of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shi-Jin Li
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China; State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Zhong Zhang
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China
| | - Shun He
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China
| | - Yue-Tong Guo
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China
| | - Mo-Na Hong
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China
| | - Shuai Shao
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China
| | - Rui-Qi Wang
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China
| | - Jia Zhang
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China
| | - Ji-Guang Wang
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China
| | - Ping-Jin Gao
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China
| | - Xiao-Dong Li
- Department of Cardiovascular Medicine, Department of Hypertension, Ruijin Hospital and State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China.
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Patino E, Bhatia D, Vance SZ, Antypiuk A, Uni R, Campbell C, Castillo CG, Jaouni S, Vinchi F, Choi ME, Akchurin O. Iron therapy mitigates chronic kidney disease progression by regulating intracellular iron status of kidney macrophages. JCI Insight 2023; 8:e159235. [PMID: 36394951 PMCID: PMC9870080 DOI: 10.1172/jci.insight.159235] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 11/16/2022] [Indexed: 11/18/2022] Open
Abstract
Systemic iron metabolism is disrupted in chronic kidney disease (CKD). However, little is known about local kidney iron homeostasis and its role in kidney fibrosis. Kidney-specific effects of iron therapy in CKD also remain elusive. Here, we elucidate the role of macrophage iron status in kidney fibrosis and demonstrate that it is a potential therapeutic target. In CKD, kidney macrophages exhibited depletion of labile iron pool (LIP) and induction of transferrin receptor 1, indicating intracellular iron deficiency. Low LIP in kidney macrophages was associated with their defective antioxidant response and proinflammatory polarization. Repletion of LIP in kidney macrophages through knockout of ferritin heavy chain (Fth1) reduced oxidative stress and mitigated fibrosis. Similar to Fth1 knockout, iron dextran therapy, through replenishing macrophage LIP, reduced oxidative stress, decreased the production of proinflammatory cytokines, and alleviated kidney fibrosis. Interestingly, iron markedly decreased TGF-β expression and suppressed TGF-β-driven fibrotic response of macrophages. Iron dextran therapy and FtH suppression had an additive protective effect against fibrosis. Adoptive transfer of iron-loaded macrophages alleviated kidney fibrosis, validating the protective effect of iron-replete macrophages in CKD. Thus, targeting intracellular iron deficiency of kidney macrophages in CKD can serve as a therapeutic opportunity to mitigate disease progression.
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Affiliation(s)
- Edwin Patino
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Divya Bhatia
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Steven Z. Vance
- Iron Research Laboratory, Lindsley Kimball Research Institute, New York Blood Center, New York, New York, USA
| | - Ada Antypiuk
- Iron Research Laboratory, Lindsley Kimball Research Institute, New York Blood Center, New York, New York, USA
| | - Rie Uni
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Chantalle Campbell
- Division of Pediatric Nephrology, Department of Pediatrics, Weill Cornell Medicine, New York, New York, USA
| | - Carlo G. Castillo
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- College of Agriculture and Life Sciences, Cornell University, Ithaca, New York, USA
| | - Shahd Jaouni
- Division of Pediatric Nephrology, Department of Pediatrics, Weill Cornell Medicine, New York, New York, USA
- Weill Cornell Medicine-Qatar, Cornell University, Doha, Qatar
| | - Francesca Vinchi
- Iron Research Laboratory, Lindsley Kimball Research Institute, New York Blood Center, New York, New York, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Mary E. Choi
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- New York-Presbyterian Hospital, New York, New York, USA
| | - Oleh Akchurin
- Division of Pediatric Nephrology, Department of Pediatrics, Weill Cornell Medicine, New York, New York, USA
- New York-Presbyterian Hospital, New York, New York, USA
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Gui T, Chen Q, Li J, Lu K, Li C, Xu B, Chen Y, Men J, Kullak-Ublick GA, Wang W, Gai Z. Astragaloside IV alleviates 1-deoxysphinganine-induced mitochondrial dysfunction during the progression of chronic kidney disease through p62-Nrf2 antioxidant pathway. Front Pharmacol 2023; 14:1092475. [PMID: 37033627 PMCID: PMC10079923 DOI: 10.3389/fphar.2023.1092475] [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: 11/08/2022] [Accepted: 03/14/2023] [Indexed: 04/11/2023] Open
Abstract
Introduction: Chronic kidney disease (CKD) can lead to significant elevation of 1-deoxysphingolipids (1-deoxySL). The increase of 1-deoxySL in turn can result in mitochondrial damage and oxidative stress, which can cause further progression of CKD. Methods: This study assessed the therapeutic effect of Astragaloside IV (AST) against 1-deoxySL-induced cytotoxicity in vitro and in rats with CKD. HK-2 cells were exposed to 1-deoxysphinganine (doxSA) or doxSA + AST. doxSA-induced mitochondrial dysfunction and oxidative stress were evaluated by immunostaining, real-time PCR, oxidative stress sensor, and transmission electron microscopy. The potential effects of AST on kidney damage were evaluated in a rat 5/6 nephrectomy (5/6 Nx) model of CKD. Results: The findings of in vitro experiments showed that doxSA induced mitochondrial damage, oxidative stress, and apoptosis. AST markedly reduced the level of mitochondrial reactive oxygen species, lowered apoptosis, and improved mitochondrial function. In addition, exposure to AST significantly induced the phosphorylation of p62 and the nuclear translocation of Nrf2 as well as its downstream anti-oxidant genes. p62 knock-down fully abolished Nrf2 nuclear translocation in cells after AST treatment. However, p62 knock-down did not affect TBHQ-induced Nrf2 nuclear translocation, indicating that AST can ameliorate doxSA-induced oxidative stress through modulation of p62 phosphorylation and Nrf2 nuclear translocation. Conclusion: The findings indicate that AST can activate Nrf2 antioxidant pathway in a p62 dependent manner. The anti-oxidative stress effect and the further mitochondrial protective effect of AST represent a promising therapeutic strategy for the progression of CKD.
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Affiliation(s)
- Ting Gui
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Qingfa Chen
- Research Center of Basic Medicine, Jinan Central Hospital, Jinan, China
- Institute for Tissue Engineering and Regenerative Medicine, Liaocheng University/Liaocheng People’s Hospital, Liaocheng, China
| | - Jiangsong Li
- Department of Urology, Liaocheng People’s Hospital, Liaocheng, China
| | - Ke Lu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Chen Li
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Bin Xu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yang Chen
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jingwen Men
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Gerd A. Kullak-Ublick
- Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- Mechanistic Safety, CMO and Patient Safety, Global Drug Development, Novartis Pharma, Basel, Switzerland
- *Correspondence: Zhibo Gai, ; Weihua Wang, ; Gerd A. Kullak-Ublick,
| | - Weihua Wang
- The Central Laboratory, Liaocheng People’s Hospital, Liaocheng, China
- *Correspondence: Zhibo Gai, ; Weihua Wang, ; Gerd A. Kullak-Ublick,
| | - Zhibo Gai
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, China
- Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic research, Shandong University of Traditional Chinese Medicine, Jinan, China
- *Correspondence: Zhibo Gai, ; Weihua Wang, ; Gerd A. Kullak-Ublick,
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Zhu X, Xu X, Du C, Su Y, Yin L, Tan X, Liu H, Wang Y, Xu L, Xu X. An examination of the protective effects and molecular mechanisms of curcumin, a polyphenol curcuminoid in diabetic nephropathy. Biomed Pharmacother 2022; 153:113438. [DOI: 10.1016/j.biopha.2022.113438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 11/02/2022] Open
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Hu K, Guo Y, Li Y, Lu C, Cai C, Zhou S, Ke Z, Li Y, Wang W. Oxidative stress: An essential factor in the process of arteriovenous fistula failure. Front Cardiovasc Med 2022; 9:984472. [PMID: 36035909 PMCID: PMC9403606 DOI: 10.3389/fcvm.2022.984472] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
For more than half a century, arteriovenous fistula (AVFs) has been recognized as a lifeline for patients requiring hemodialysis (HD). With its higher long-term patency rate and lower probability of complications, AVF is strongly recommended by guidelines in different areas as the first choice for vascular access for HD patients, and its proportion of application is gradually increasing. Despite technological improvements and advances in the standards of postoperative care, many deficiencies are still encountered in the use of AVF related to its high incidence of failure due to unsuccessful maturation to adequately support HD and the development of neointimal hyperplasia (NIH), which narrows the AVF lumen. AVF failure is linked to the activation and migration of vascular cells and the remodeling of the extracellular matrix, where complex interactions between cytokines, adhesion molecules, and inflammatory mediators lead to poor adaptive remodeling. Oxidative stress also plays a vital role in AVF failure, and a growing amount of data suggest a link between AVF failure and oxidative stress. In this review, we summarize the present understanding of the pathophysiology of AVF failure. Furthermore, we focus on the relation between oxidative stress and AVF dysfunction. Finally, we discuss potential therapies for addressing AVF failure based on targeting oxidative stress.
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Affiliation(s)
- Ke Hu
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Guo
- Clinic Center of Human Gene Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuxuan Li
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chanjun Lu
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chuanqi Cai
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shunchang Zhou
- Center of Experimental Animals, Huazhong University of Science and Technology, Wuhan, China
| | - Zunxiang Ke
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiqing Li
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Yiqing Li,
| | - Weici Wang
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Weici Wang,
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8
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The Role of Oxidative Stress in Skeletal Muscle Myogenesis and Muscle Disease. Antioxidants (Basel) 2022; 11:antiox11040755. [PMID: 35453440 PMCID: PMC9026549 DOI: 10.3390/antiox11040755] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/28/2022] [Accepted: 03/28/2022] [Indexed: 02/06/2023] Open
Abstract
The contractile activity, high oxygen consumption and metabolic rate of skeletal muscle cause it to continuously produce moderate levels of oxidant species, such as reactive oxygen species (ROS) and reactive nitrogen species (RNS). Under normal physiological conditions, there is a dynamic balance between the production and elimination of ROS/RNS. However, when the oxidation products exceed the antioxidant defense capacity, the body enters a state of oxidative stress. Myogenesis is an important process to maintain muscle homeostasis and the physiological function of skeletal muscle. Accumulating evidence suggests that oxidative stress plays a key role in myogenesis and skeletal muscle physiology and pathology. In this review, we summarize the sources of reactive oxygen species in skeletal muscle and the causes of oxidative stress and analyze the key role of oxidative stress in myogenesis. Then, we discuss the relationship between oxidative stress and muscle homeostasis and physiopathology. This work systematically summarizes the role of oxidative stress in myogenesis and muscle diseases and provides targets for subsequent antioxidant therapy and repair of inflammatory damage in noninflammatory muscle diseases.
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Tao Z, Li Y, Cheng B, Zhou T, Gao Y. Influence of Nonalcoholic Fatty Liver Disease on the Occurrence and Severity of Chronic Kidney Disease. J Clin Transl Hepatol 2022; 10:164-173. [PMID: 35233386 PMCID: PMC8845149 DOI: 10.14218/jcth.2021.00171] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/10/2021] [Accepted: 08/25/2021] [Indexed: 12/04/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is reported to affect 20-30% of adults and is accompanied by various metabolic comorbidities, where the economic and clinical burden of NAFLD is attributed to the progression of liver disease as well as the presence of extrahepatic diseases. Chronic kidney disease (CKD), which has a high incidence rate, high morbidity and mortality rates, and high medical costs, has been linked to NAFLD. CKD is associated with some metabolism-related risk factors that overlap with metabolic comorbidities of NAFLD. Therefore, to investigate the potential factors that influence CKD occurrence, the association between NAFLD and CKD should be clarified. Some studies have confirmed that NAFLD influences the occurrence and severity of CKD, whereas some studies have indicated that there is no correlation. In this review, the results of a few studies have been discussed, the potential risk factors for CKD in NAFLD are explored, and the respective biological mechanisms are elaborated to help clinicians identify CKD in patients much earlier than it is diagnosed now and thus help in reducing the incidence of liver and kidney transplants.
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Affiliation(s)
| | | | | | | | - Yanjing Gao
- Correspondence to: Yanjing Gao, Department of Gastroenterology, Qilu Hospital of Shandong University, 107 Wenhua Xi Road, Jinan, Shandong 250012, China. ORCID: https://orcid.org/0000-0001-8153-3754. Tel: +86-18560086087, E-mail:
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Brown AK, Nichols A, Coley CA, Ekperikpe US, McPherson KC, Shields CA, Poudel B, Cornelius DC, Williams JM. Treatment With Lisinopril Prevents the Early Progression of Glomerular Injury in Obese Dahl Salt-Sensitive Rats Independent of Lowering Arterial Pressure. Front Physiol 2021; 12:765305. [PMID: 34975523 PMCID: PMC8719629 DOI: 10.3389/fphys.2021.765305] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/25/2021] [Indexed: 01/04/2023] Open
Abstract
Recently, we reported that obese Dahl salt-sensitive leptin receptor mutant (SSLepRmutant) rats develop glomerular injury and progressive proteinuria prior to puberty. Moreover, this early progression of proteinuria was associated with elevations in GFR. Therefore, the current study examined whether treatment with lisinopril to reduce GFR slows the early progression of proteinuria in SSLepRmutant rats prior to puberty. Experiments were performed on 4-week-old SS and SSLepRmutant rats that were either treated with vehicle or lisinopril (20 mg/kg/day, drinking water) for 4 weeks. We did not observe any differences in MAP between SS and SSLepRmutant rats treated with vehicle (148 ± 5 vs. 163 ± 6 mmHg, respectively). Interestingly, chronic treatment with lisinopril markedly reduced MAP in SS rats (111 ± 3 mmHg) but had no effect on MAP in SSLepRmutant rats (155 ± 4 mmHg). Treatment with lisinopril significantly reduced proteinuria in SS and SSLepRmutant rats compared to their vehicle counterparts (19 ± 5 and 258 ± 34 vs. 71 ± 12 and 498 ± 66 mg/day, respectively). Additionally, nephrin excretion was significantly elevated in SSLepRmutant rats versus SS rats, and lisinopril reduced nephrin excretion in both strains. GFR was significantly elevated in SSLepRmutant rats compared to SS rats, and lisinopril treatment reduced GFR in SSLepRmutant rats by 30%. The kidneys from SSLepRmutant rats displayed glomerular injury with increased mesangial expansion and renal inflammation versus SS rats. Chronic treatment with lisinopril significantly decreased glomerular injury and renal inflammation in the SSLepRmutant rats. Overall, these data indicate that inhibiting renal hyperfiltration associated with obesity is beneficial in slowing the early development of glomerular injury and renal inflammation.
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Affiliation(s)
- Andrea K. Brown
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, United States
| | - Alyssa Nichols
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, United States
| | - Chantell A. Coley
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, United States
| | - Ubong S. Ekperikpe
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, United States
| | - Kasi C. McPherson
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, United States
| | - Corbin A. Shields
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, United States
| | - Bibek Poudel
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, United States
| | - Denise C. Cornelius
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, United States
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, MS, United States
| | - Jan M. Williams
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, United States
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Levy RV, Reidy KJ, Le TH, David V, Winkler C, Xu Y, Warady B, Furth S, Kaskel F, Melamed ML. Association of GSTM1 Deletion With Progression of CKD in Children: Findings From the Chronic Kidney Disease in Children (CKiD) Study. Am J Kidney Dis 2021; 80:79-86. [PMID: 34871703 PMCID: PMC9166174 DOI: 10.1053/j.ajkd.2021.10.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 10/14/2021] [Indexed: 11/11/2022]
Abstract
RATIONALE AND OBJECTIVE Loss of function of the product of the GSTM1 gene has been implicated in rapid progression of adult CKD. Its role in pediatric CKD has not been previously described. STUDY DESIGN The study is a secondary analysis of a prospective observational cohort examining the association between deletions in GSTM1 and progression of CKD. SETTING AND PARTICIPANTS We used data and samples from the prospective Chronic Kidney Disease in Children (CKiD) cohort aged 1-16 years at enrollment with CKD. EXPOSURE We defined exposure fewer than two GSTM1 alleles on real-time polymerase chain reaction amplification. OUTCOME The primary outcome was a composite of 50% decrease in estimated glomerular filtration rate (eGFR) or start of kidney replacement therapy. Secondary outcomes included remission of proteinuria in children with glomerular disease and cardiovascular complications. ANALYTIC APPROACH The primary analysis was by Cox proportional hazards model. Analysis was adjusted for age, sex, race, ethnicity, BMI category, diagnosis category, and eGFR. RESULTS 674 children were included in the analysis. Mean age at most recent visit was 11.9 years; 61% were male and 20% were Black. There were 241 occurrences of the primary outcome at the time of analysis. After adjustment for baseline characteristics, the risk of progression of CKD for exposed children was 1.94 (1.27, 2.97). The effect size was similar with either one or two deletions (autosomal dominant inheritance). The relationships between number of functional GSTM1 alleles and prespecified secondary outcomes were not statistically significant after adjustment. LIMITATIONS Missing data, especially for secondary outcomes, and relatively small sample size compared to genetic studies in adults. CONCLUSIONS GSTM1 deletion is associated with more rapid progression of pediatric CKD after adjustment in this large prospective cohort. No statistically significant associations were seen with secondary outcomes. If replicated, these findings may inform development of interventions for CKD in children.
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Affiliation(s)
- Rebecca V Levy
- Department of Medicine, Division of Nephrology, University of Rochester School of Medicine and Dentistry.
| | - Kimberly J Reidy
- Department of Pediatrics, Division of Pediatric Nephrology, Montefiore Medical Center, Bronx, NY, United States
| | - Thu H Le
- Department of Medicine, Division of Nephrology, University of Rochester School of Medicine and Dentistry
| | - Victor David
- Basic Science Laboratory, Center for Cancer Research, Frederick National Laboratory, Frederick, MD, USA
| | - Cheryl Winkler
- Basic Science Laboratory, Center for Cancer Research, Frederick National Laboratory, Frederick, MD, USA
| | - Yunwen Xu
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Bradley Warady
- Department of Pediatrics, Division of Pediatric Nephrology, Children's Mercy Kansas City MO, USA
| | - Susan Furth
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania and the Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Frederick Kaskel
- Department of Pediatrics, Division of Pediatric Nephrology, Montefiore Medical Center, Bronx, NY, United States
| | - Michal L Melamed
- Department of Medicine, Division of Nephrology, Albert Einstein College of Medicine, Bronx, NY, United States
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The protein-bound uremic toxin p-cresyl-sulfate promotes intracellular ROS production and lipid peroxidation in 3T3-L1 adipose cells. Biochimie 2021; 189:137-143. [PMID: 34217821 DOI: 10.1016/j.biochi.2021.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 06/14/2021] [Accepted: 06/30/2021] [Indexed: 11/23/2022]
Abstract
Patients with chronic kidney disease (CKD) often exhibit increased level of oxidative stress that contribute to the deterioration of renal function and uremic complications. White adipose tissue (WAT) has been recognized as a major site of production of radical oxygen species (ROS) in the context of metabolic diseases. This study was designed to decipher whether the protein bound uremic toxin p-cresyl-sulfate (p-CS) could contribute to ROS production in WAT and promote oxidative stress. Mouse 3T3-L1 adipocytes were incubated for 2 h in culture medium containing 212 μM p-CS, a concentration chosen to mimic levels encountered in end stage renal disease patients or KCl as a control and intracellular ROS production was measured using the fluorescent probe 5-6-carboxy-2',7'-dichlorodihydrofluorescein diacetate. Oxidative insult was estimated by the measurement of malondialdehyde (MDA) content and glutathione content. The effects of probenecid (1 mM) a potent inhibitor of organic anion transporter, apocynin (1 mM) an inhibitor of NADPH oxidase or common antioxidants such as α-tocopherol (2.5 μM), ascorbate (200 μM), and N-acetylcysteine (500 μM) were further evaluated. p-CS triggered a striking increase in ROS production (+228%, p < 0.01), in MDA content (+214%, p < 0.005) and a decrease in glutathione (-47%, P < 0.01). Pre-treatment of cells with probenecid, apocynin or antioxidants prevented the p-CS induced ROS production and oxidative insults. These results suggest that in uremic state, the intracellular accumulation of p-CS in adipose cells could contribute, through an activation of NADPH oxidase, to the redox imbalance often reported in CKD patients.
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Su Y, Huang Y, Jiang Y, Zhu M. The Association between Serum Retinol-Binding Protein 4 Levels and Cardiovascular Events in Patients with Chronic Kidney Disease. Lab Med 2021; 51:491-497. [PMID: 31999339 DOI: 10.1093/labmed/lmz104] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE The study aimed to assess whether serum retinol-binding protein 4 (RBP4) is associated with a risk of cardiovascular (CV) events in chronic kidney disease (CKD) patients. METHODS One hundred sixty-nine patients with CKD were followed for a mean of 36 months (range, 5-39 months). Serum RBP4 and other laboratory indicators were measured at baseline. The relationship between RBP4 and the risk of CV events was evaluated by using Cox regression analysis. RESULTS Patients with higher serum RBP4 levels had a higher rate of CV events and a higher mortality in a univariate analysis (P < 0.001). The multivariate Cox proportional hazard analysis revealed that RBP4 (hazard ratio, 2.259; 95% confidence interval, 2.067-5.489; P = 0.002) is an independent prognostic factor for CV events in patients with CKD. Kaplan-Meier analysis demonstrated that patients with RBP4 above the median value (>33.86 mg/L) had a higher rate of CV events than did patients with RBP4 at or below the median value (≤33.86 mg/L; P < 0.001). CONCLUSION RBP4 levels are associated with CV events in patients with CKD. Elevated serum RBP4 levels may indicate an increased risk of CV complications in CKD patients.
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Affiliation(s)
- Yuhao Su
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ying Huang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ying Jiang
- Department of Rehabilitation, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Meilan Zhu
- Department of Rehabilitation, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Armağan HH, Nazıroğlu M. Glutathione depletion induces oxidative injury and apoptosis via TRPM2 channel activation in renal collecting duct cells. Chem Biol Interact 2020; 334:109306. [PMID: 33309544 DOI: 10.1016/j.cbi.2020.109306] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/23/2020] [Accepted: 10/28/2020] [Indexed: 12/18/2022]
Abstract
Oxidative stress (OS)-induced glutathione (GSH) depletion plays an essential role in several kidney diseases such as chronic kidney disease and nephrotoxicity. The OS-dependent activation of TRPM2 cation channel in several neurons and cells were modulated by the concentration of intracellular GSH. However, the effects of GSH alteration on TRPM2 activation, OS, and apoptosis in the cortical collecting duct (mpkCCDc14) cells still remain elusive. We investigated the effects of GSH supplementation on OS-induced TRPM2 activation, mitochondrial oxidative stress, and apoptosis in the human embryonic kidney 293 (HEK293) and mpkCCDc14 cells treated with buthionine-sulfoximine (BSO), a GSH synthase inhibitor. The HEK293 and mpkCCDc14 cells were divided into five groups as control, GSH (10 mM for 2 h), BSO (0.5 mM for 6 h), BSO + GSH, and BSO + TRPM2 channel blockers. Apoptosis, cell death, mitochondrial OS, caspase -3, caspase -9, cytosolic free Zn2+, and Ca2+ concentrations were increased in the BSO group of the TRPM2 expressing mpkCCDc14 cells, although they were diminished by the treatments of GSH, PARP-1 inhibitors (PJ34 and DPQ), and TRPM2 blockers (ACA and 2-APB). The BSO-induced decreases in the levels of cell viability and cytosolic GSH were increased by the treatments of GSH, ACA, and 2-APB. However, the effects of BSO and GSH were not observed in the non-TRPM2 expressing HEK293 cells. Current results show that maintaining GSH homeostasis is not only important for quenching OS in the cortical collecting duct cells but equally critical to modulate TRPM2 activation. Thus, suppressing apoptosis and mitochondrial OS responses elicited by oxidant action of GSH depletion.
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Affiliation(s)
- Hamit Hakan Armağan
- Department of Emergency Medicine, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Mustafa Nazıroğlu
- Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey; Drug Discovery Unit, BSN Health, Analyses, Innovation, Consultancy, Organization, Agriculture and Industry Ltd, Göller Bölgesi Teknokenti, Isparta, Turkey.
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Two Toxic Lipid Aldehydes, 4-hydroxy-2-hexenal (4-HHE) and 4-hydroxy-2-nonenal (4-HNE), Accumulate in Patients with Chronic Kidney Disease. Toxins (Basel) 2020; 12:toxins12090567. [PMID: 32899405 PMCID: PMC7551374 DOI: 10.3390/toxins12090567] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/31/2020] [Accepted: 09/02/2020] [Indexed: 01/26/2023] Open
Abstract
Lipid aldehydes originating from the peroxidation of n-3 and n-6 polyunsaturated fatty acids are increased in hemodialysis (HD) patients, a process already known to promote oxidative stress. However, data are lacking for patients with chronic kidney disease (CKD) before the initiation of HD. We prospectively evaluated the changes of plasma concentrations of two major lipid aldehydes, 4-HHE and 4-HNE, according to the decrease of glomerular filtration rate (GFR) in 40 CKD and 13 non-CKD participants. GFR was measured by inulin or iohexol clearance. Thus, 4-hydroxy-2-nonenal (4-HNE) and 4-hydroxy-2-hexenal (4-HHE) were quantitated in plasma by gas chromatography coupled with mass spectrometry and their covalent adducts on proteins were quantified by immunoblotting. On the one hand, 4-HHE plasma concentration increased from CKD stage I–II to CKD stage IV–V compared to non-CKD patients (4.5-fold higher in CKD IV–V, p < 0.005). On the other hand, 4-HNE concentration only increased in CKD stage IV–V patients (6.2-fold, p < 0.005). The amount of covalent adducts of 4-HHE on plasma protein was 9.5-fold higher in CKD patients than in controls (p < 0.005), while no difference was observed for 4-HNE protein adducts. Plasma concentrations of 4-HNE and 4-HHE are increased in CKD IV–V patients before the initiation of hemodialysis.
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Castañeda-Arriaga R, Pérez-González A, Reina M, Galano A. Computer-designed melatonin derivatives: potent peroxyl radical scavengers with no pro-oxidant behavior. Theor Chem Acc 2020. [DOI: 10.1007/s00214-020-02641-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Hussien FM, Hassen HY. Dietary Habit and Other Risk Factors of Chronic Kidney Disease Among Patients Attending Dessie Referral Hospital, Northeast Ethiopia. Int J Nephrol Renovasc Dis 2020; 13:119-127. [PMID: 32547157 PMCID: PMC7245461 DOI: 10.2147/ijnrd.s248075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 04/24/2020] [Indexed: 12/14/2022] Open
Abstract
Background In low- and middle-income countries, the burden of chronic kidney disease (CKD) is rising due to poor access to early detection and management services. In Ethiopia, little is known about the context-specific risk factors and their magnitude, particularly the dietary habit of patients is not studied. Therefore, this study aimed to identify the dietary and other risk factors of CKD in Northeast Ethiopia. Methods We conducted a facility-based unmatched case–control study utilizing quantitative method of data collection. Data were collected on a total of 66 cases and 134 controls using structured questionnaire and anthropometric measurements. Dietary habit was assessed using the Diet History Questionnaire (DHQ). Medical history, patient chart review and physical examination were employed to collect other relevant information. To identify independent predictors of CKD, we conducted a multivariable logistic regression analysis. Results About 54.5% cases and 46.3% of controls were female, while 40.9% of cases and 38.8% of controls were within the age group of 36–55. All cases and 128 (95.5%) controls consumed meat in the last year. Forty-six (69.7%) cases and 74 (55.2%) controls use palm oil as the main cooking oil. History of hypertension (adjusted odds ratio (AOR)=2.39; 95%CI: 1.17–4.89), anemia (AOR=2.38; 95%CI: 1.04–5.42), palm oil use (AOR=2.10; 95%CI: 1.01–4.35) and family history of CKD (AOR=8.77; 95%CI: 3.73–20.63) were significantly associated with the risk of having CKD. Conclusion Meat consumption and use of palm oil are higher among patients with CKD than controls. History of hypertension, anemia, family history of CKD and palm oil consumption were found to be risk factors for CKD. Dietary counseling interventions and dietary modifications might help in CKD prevention. Furthermore, routine urinalysis and estimation of glomerular filtration rate (GFR) for all hospitalized patients with hypertension and anemia could help to detect CKD at an earlier stage for a better prognosis.
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Affiliation(s)
- Foziya Mohammed Hussien
- Department of Public Health Nutrition, School of Public Health, College of Medicine and Health Science, Wollo University, Dessie, Ethiopia
| | - Hamid Yimam Hassen
- Department of Primary and Interdisciplinary Care, University of Antwerp, Antwerp, Belgium
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Sodium copper chlorophyllin attenuates adenine-induced chronic kidney disease via suppression of TGF-beta and inflammatory cytokines. Naunyn Schmiedebergs Arch Pharmacol 2020; 393:2029-2041. [PMID: 32500189 DOI: 10.1007/s00210-020-01912-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 05/17/2020] [Indexed: 10/24/2022]
Abstract
The present study was designed to evaluate the effect of sodium copper chlorophyllin (SCC) in adenine-induced chronic kidney disease (CKD). CKD was induced in male Wistar rats by feeding 0.3% w/w adenine diet for 28 days. After induction, animals were treated with sodium copper chlorophyllin at dose 2.7, 5.4, and 10.8 mg/kg for the next 28 days. The biochemical and urines parameters like creatinine, blood urea nitrogen (BUN), albumin, total protein creatinine clearance, urea clearance, and glomerular filtration rate were assessed on days 0, 14, and 28. Plasma TGF-β1, COX-2, and IL-6 levels were assessed. Various oxidative stress parameters and TGF-β1 expression were determined in the kidney. Histopathology of the kidney was studied with different stains. Sodium copper chlorophyllin-treated animals showed a significant reduction in urine output and relative kidney weight. The treatment with sodium copper chlorophyllin significantly improved kidney function by normalizing biochemical and urine parameters. Treatment with SCC significantly reduced circulatory inflammatory mediators-TGF-β1, COX-2, and IL-6. Additionally, the treatment also significantly reduced oxidative stress and TGF-β1 expression in kidney tissues. Histopathology studies showed inhibition in the kidney damage due to the treatment of SCC. The sodium copper chlorophyllin treatment attenuated adenine-induced chronic kidney disease in rats.
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Irazabal MV, Torres VE. Reactive Oxygen Species and Redox Signaling in Chronic Kidney Disease. Cells 2020; 9:cells9061342. [PMID: 32481548 PMCID: PMC7349188 DOI: 10.3390/cells9061342] [Citation(s) in RCA: 151] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/18/2020] [Accepted: 05/20/2020] [Indexed: 02/07/2023] Open
Abstract
Chronic kidney disease (CKD) remains a worldwide public health problem associated with serious complications and increased mortality rates. Accumulating evidence indicates that elevated intracellular levels of reactive oxygen species (ROS) play a major role in the pathogenesis of CKD. Increased intracellular levels of ROS can lead to oxidation of lipids, DNA, and proteins, contributing to cellular damage. On the other hand, ROS are also important secondary messengers in cellular signaling. Consequently, normal kidney cell function relies on the "right" amount of ROS. Mitochondria and NADPH oxidases represent major sources of ROS in the kidney, but renal antioxidant systems, such as superoxide dismutase, catalase, or glutathione peroxidase counterbalance ROS-mediated injury. This review discusses the main sources of ROS and antioxidant systems in the kidney, and redox signaling pathways leading to inflammation and fibrosis, which result in abnormal kidney function and CKD progression. We further discuss the important role of the nuclear factor erythroid 2-related factor 2 (Nrf2) in regulating antioxidant responses, and other mechanisms of redox signaling.
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Affiliation(s)
- Maria V. Irazabal
- Department of Internal Medicine, Division of Nephrology and Hypertension, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA;
- Mayo Translational PKD Center, Mayo Clinic, Rochester, MN 55905, USA
- Correspondence: ; Tel.: +1-(507)-293-6388; Fax: +1-(507)-266-9315
| | - Vicente E. Torres
- Department of Internal Medicine, Division of Nephrology and Hypertension, Mayo Clinic, 200 First Street, Rochester, MN 55905, USA;
- Mayo Translational PKD Center, Mayo Clinic, Rochester, MN 55905, USA
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Maiwall R, Gupta M. Peri-transplant renal dysfunction in patients with non-alcoholic steatohepatitis undergoing liver transplantation. Transl Gastroenterol Hepatol 2020; 5:18. [PMID: 32258522 DOI: 10.21037/tgh.2019.10.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 10/15/2019] [Indexed: 12/11/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is currently the most common etiology of chronic liver disease (CLD) caused by an accumulation of fat in the liver and globally is the leading indication of liver transplantation. Emerging data has recognized an increased association of NAFLD with risk of other metabolic liver diseases like type 2 diabetes mellitus, chronic kidney disease (CKD) and cardiovascular diseases. Pathophysiologically, NAFLD patients have a state of low-grade systemic inflammation, insulin resistance and atherogenic dyslipidemia which causes renal dysfunction. Patients with NAFLD cirrhosis awaiting liver transplant (LT) face unique challenges and have a significantly higher requirement of simultaneous-liver-kidney transplant as compared to other etiologies. Further, NAFLD not only recurs but also occurs as a de novo manifestation post-LT. There is also a significantly higher risk of waiting list stagnation and dropouts due to burdensome cardiometabolic disorders in NAFLD patients. The current review aims to understand the prevalence and pathogenetic basis of renal dysfunction in NAFLD. Additionally, the review describes the choice of immunosuppression protocols and use of intraoperative renal replacement therapy in context of intra and post-operative renal dysfunction in NAFLD patients. Prospective controlled trials focusing on NAFLD and development of CKD are needed to assess the existence of a causal and/or a bidirectional relationship between NAFLD and CKD.
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Affiliation(s)
- Rakhi Maiwall
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Manasvi Gupta
- Department of Internal Medicine, University of Connecticut School of Medicine, Hartford, CT, USA
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Chinnappa S, El Nahas M, Mooney A. Reversal of asymptomatic cardiac dysfunction following renal transplantation. Clin Kidney J 2020; 14:720-722. [PMID: 33841851 PMCID: PMC8023313 DOI: 10.1093/ckj/sfaa010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 01/07/2020] [Indexed: 11/12/2022] Open
Affiliation(s)
- Shanmugakumar Chinnappa
- Department of Nephrology, Doncaster and Bassetlaw Teaching Hospitals, Doncaster, UK.,Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Meguid El Nahas
- Department of Nephrology, University of Sheffield, Sheffield, UK
| | - Andrew Mooney
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK.,Department of Nephrology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
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22
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Chauveau P, Koppe L, Combe C, Lasseur C, Trolonge S, Aparicio M. Vegetarian diets and chronic kidney disease. Nephrol Dial Transplant 2020; 34:199-207. [PMID: 29982610 DOI: 10.1093/ndt/gfy164] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 04/26/2018] [Indexed: 12/17/2022] Open
Abstract
While dietary restriction of protein intake has long been proposed as a possible kidney-protective treatment, the effects of changes in the quality of ingested proteins on the prevalence and risk of progression of chronic kidney disease (CKD) have been scarcely studied; these two aspects are reviewed in the present article. The prevalence of hypertension, type 2 diabetes and metabolic syndrome, which are the main causes of CKD in Western countries, is lower in vegetarian populations. Moreover, there is a negative relationship between several components of plant-based diets and numerous factors related to CKD progression such as uraemic toxins, inflammation, oxidative stress, metabolic acidosis, phosphate load and insulin resistance. In fact, results from different studies seem to confirm a kidney-protective effect of plant-based diets in the primary prevention of CKD and the secondary prevention of CKD progression. Various studies have determined the nutritional safety of plant-based diets in CKD patients, despite the combination of a more or less severe dietary protein restriction. As observed in the healthy population, this dietary pattern is associated with a reduced risk of all-cause mortality in CKD patients. We propose that plant-based diets should be included as part of the clinical recommendations for both the prevention and management of CKD.
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Affiliation(s)
- Philippe Chauveau
- Aurad-Aquitaine, Service Hémodialyse, Gradignan, France.,Service de Néphrologie Transplantation Dialyse, Centre Hospitalier Universitaire de Bordeaux, Hôpital Pellegrin, Bordeaux, France
| | - Laetitia Koppe
- Department of Nephrology, Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre-Benite, France.,University of Lyon, CarMeN lab, INSERM U1060, INRA U1397, INSA de Lyon, Université Claude Bernard Lyon 1, Villeurbanne, France
| | - Christian Combe
- Aurad-Aquitaine, Service Hémodialyse, Gradignan, France.,Service de Néphrologie Transplantation Dialyse, Centre Hospitalier Universitaire de Bordeaux, Hôpital Pellegrin, Bordeaux, France.,Unité INSERM 1026, Université de Bordeaux, Bordeaux, France
| | - Catherine Lasseur
- Aurad-Aquitaine, Service Hémodialyse, Gradignan, France.,Service de Néphrologie Transplantation Dialyse, Centre Hospitalier Universitaire de Bordeaux, Hôpital Pellegrin, Bordeaux, France
| | | | - Michel Aparicio
- Service de Néphrologie Transplantation Dialyse, Centre Hospitalier Universitaire de Bordeaux, Hôpital Pellegrin, Bordeaux, France
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Luo K, Bian J, Wang Q, Wang J, Chen F, Li H, Jin D. Association of obesity with chronic kidney disease in elderly patients with nonalcoholic fatty liver disease. TURKISH JOURNAL OF GASTROENTEROLOGY 2020; 30:611-615. [PMID: 31290748 DOI: 10.5152/tjg.2019.18343] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND/AIMS This study investigated an association between obesity and impaired renal functions in elderly patients with nonalcoholic fatty liver disease (NAFLD) and evaluated the risk factors for chronic kidney disease (CKD) in these patients. MATERIALS AND METHODS A cross-sectional study was performed involving 515 elderly patients (≥ 60 years old) with NAFLD. Demographics, body mass index (BMI), medical history, and laboratory parameters were compared for groups stratified by obesity (≥ 28 kg/m2) or CKD. An association between obesity and CKD was analyzed, and a multivariate logistic regression analysis was conducted for risk factors associated with CKD. RESULTS In the overall population, 28.7% were obese and 54.8% had CKD; there were more women (58.8%) than men. The prevalence of hypertension and diabetes was similar between the obese and nonobese groups and between the CKD and non-CKD groups. Obese patients had significantly higher levels of serum uric acid and estimated glomerular filtration rates when compared with the nonobese group. When compared with those without CKD, patients with CKD were significantly older in addition to having higher BMI and serum uric acid levels. The multivariate logistic regression analysis indicated that CKD was positively associated with age, BMI, and serum uric acid levels. CONCLUSION Elderly obese patients with NAFLD are at a higher risk of CKD. NAFLD patients with advanced age, greater BMI, or higher serum uric acid levels are more prone to developing CKD. The renal function of NAFLD patients should be closely monitored.
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Affiliation(s)
- Kexue Luo
- Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jie Bian
- Sir Run Run Shaw Hospital, International Medical Center, Zhejiang University, Zhejiang, China
| | - Qinxian Wang
- Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jiesheng Wang
- Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Fuxing Chen
- Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Hongchun Li
- Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Dong Jin
- Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang, China
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24
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Halfen DP, Caragelasco DS, Nogueira JPDS, Jeremias JT, Pedrinelli V, Oba PM, Ruberti B, Pontieri CFF, Kogika MM, Brunetto MA. Evaluation of Electrolyte Concentration and Pro-Inflammatory and Oxidative Status in Dogs with Advanced Chronic Kidney Disease under Dietary Treatment. Toxins (Basel) 2019; 12:toxins12010003. [PMID: 31861622 PMCID: PMC7020431 DOI: 10.3390/toxins12010003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 11/30/2022] Open
Abstract
An integrated study on the effect of renal diet on mineral metabolism, fibroblast growth factor 23 (FGF-23), total antioxidant capacity, and inflammatory markers has not been performed previously. In this study, we evaluated the effects of renal diet on mineral metabolism, oxidative stress and inflammation in dogs with stage 3 or 4 of chronic kidney disease (CKD). Body condition score (BCS), muscle condition score (MCS), serum biochemical profile, ionized calcium (i-Ca), total calcium (t-Ca), phosphorus (P), urea, creatinine, parathyroid hormone (PTH), FGF-23, interleukin 6 (IL-6), interleukin 10 (IL-10), tumor necrosis factor alpha (TNF-α) and total antioxidant capacity (TAC) were measured at baseline (T0) and after 6 months of dietary treatment (T6). Serum urea, P, t-Ca, i-Ca, PTH, FGF-23, IL-6, IL-10, TNF-α and TAC measurements did not differ between T0 and T6. Serum creatinine (SCr) was increased at T6 and serum PTH concentrations were positively correlated with serum SCr and urea. i-Ca was negatively correlated with urea and serum phosphorus was positively correlated with FGF-23. Urea and creatinine were positively correlated. The combination of renal diet and support treatment over 6 months in dogs with CKD stage 3 or 4 was effective in controlling uremia, acid–base balance, blood pressure, total antioxidant capacity, and inflammatory cytokine levels and in maintaining BCS and MCS.
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Affiliation(s)
- Doris Pereira Halfen
- School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, Cidade Universitária, São Paulo, SP 05508-270, Brazil; (D.P.H.); (D.S.C.); (V.P.); (B.R.); (M.A.B.)
| | - Douglas Segalla Caragelasco
- School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, Cidade Universitária, São Paulo, SP 05508-270, Brazil; (D.P.H.); (D.S.C.); (V.P.); (B.R.); (M.A.B.)
| | - Juliana Paschoalin de Souza Nogueira
- Animal Sciences Department, College of Agricultural, Consumer & Environmental Sciences, University of Illinois at Urbana-Champaign, Champaign, IL 217-333-3131, USA; (J.P.d.S.N.); (P.M.O.)
| | - Juliana Toloi Jeremias
- Nutrition Development Center, Grand Food Industria e Comercio Ltda (Premier Pet), Dourado, SP 13590-000, Brazil; (J.T.J.); (C.F.F.P.)
| | - Vivian Pedrinelli
- School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, Cidade Universitária, São Paulo, SP 05508-270, Brazil; (D.P.H.); (D.S.C.); (V.P.); (B.R.); (M.A.B.)
| | - Patrícia Massae Oba
- Animal Sciences Department, College of Agricultural, Consumer & Environmental Sciences, University of Illinois at Urbana-Champaign, Champaign, IL 217-333-3131, USA; (J.P.d.S.N.); (P.M.O.)
| | - Bruna Ruberti
- School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, Cidade Universitária, São Paulo, SP 05508-270, Brazil; (D.P.H.); (D.S.C.); (V.P.); (B.R.); (M.A.B.)
| | | | - Marcia Mery Kogika
- School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, Cidade Universitária, São Paulo, SP 05508-270, Brazil; (D.P.H.); (D.S.C.); (V.P.); (B.R.); (M.A.B.)
- Correspondence:
| | - Marcio Antonio Brunetto
- School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, Cidade Universitária, São Paulo, SP 05508-270, Brazil; (D.P.H.); (D.S.C.); (V.P.); (B.R.); (M.A.B.)
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25
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Barley-ß-glucans reduce systemic inflammation, renal injury and aortic calcification through ADAM17 and neutral-sphingomyelinase2 inhibition. Sci Rep 2019; 9:17810. [PMID: 31780737 PMCID: PMC6882851 DOI: 10.1038/s41598-019-54306-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/06/2019] [Indexed: 11/18/2022] Open
Abstract
In chronic kidney disease (CKD), hyperphosphatemia-induced inflammation aggravates vascular calcification (VC) by increasing vascular smooth muscle cell (VSMC) osteogenic differentiation, ADAM17-induced renal and vascular injury, and TNFα-induction of neutral-sphingomyelinase2 (nSMase2) to release pro-calcifying exosomes. This study examined anti-inflammatory β-glucans efficacy at attenuating systemic inflammation in health, and renal and vascular injury favoring VC in hyperphosphatemic CKD. In healthy adults, dietary barley β-glucans (Bβglucans) reduced leukocyte superoxide production, inflammatory ADAM17, TNFα, nSMase2, and pro-aging/pro-inflammatory STING (Stimulator of interferon genes) gene expression without decreasing circulating inflammatory cytokines, except for γ-interferon. In hyperphosphatemic rat CKD, dietary Bβglucans reduced renal and aortic ADAM17-driven inflammation attenuating CKD-progression (higher GFR and lower serum creatinine, proteinuria, kidney inflammatory infiltration and nSMase2), and TNFα-driven increases in aortic nSMase2 and calcium deposition without improving mineral homeostasis. In VSMC, Bβglucans prevented LPS- or uremic serum-induced rapid increases in ADAM17, TNFα and nSMase2, and reduced the 13-fold higher calcium deposition induced by prolonged calcifying conditions by inhibiting osteogenic differentiation and increases in nSMase2 through Dectin1-independent actions involving Bβglucans internalization. Thus, dietary Bβglucans inhibit leukocyte superoxide production and leukocyte, renal and aortic ADAM17- and nSMase2 gene expression attenuating systemic inflammation in health, and renal injury and aortic calcification despite hyperphosphatemia in CKD.
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26
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Colombo G, Reggiani F, Astori E, Altomare A, Finazzi S, Garavaglia ML, Angelini C, Milzani A, Badalamenti S, Dalle-Donne I. Advanced oxidation protein products in nondiabetic end stage renal disease patients on maintenance haemodialysis. Free Radic Res 2019; 53:1114-1124. [PMID: 31755327 DOI: 10.1080/10715762.2019.1690651] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In chronic kidney disease (CKD), the impairment of the excretory function leads to elevation in the blood concentrations of urea, creatinine, and various protein metabolic products. Advanced oxidation protein products (AOPP), along with protein carbonyls, protein-bound di-tyrosines and S-thiolated proteins, are considered biomarkers of oxidative stress in end-stage renal disease (ESRD) patients on maintenance haemodialysis (HD). In this study, we evaluated the correlations between plasma levels of AOPP (measured by size exclusion/gel filtration high performance liquid chromatography) and those of protein-bound di-tyrosines, protein carbonyls, albumin and fibrinogen in 50 nondiabetic ESRD patients on maintenance HD. Considering that AOPP could represent the bridge between oxidative stress and inflammation, having been identified as proinflammatory mediators, we also evaluated the association between AOPP levels, C-reactive protein concentration and white blood cells count. Finally, we assessed the associations between plasma level of AOPP and serum concentrations of creatinine and urea, both of which showed a strong dependence on the chronological age of haemodialysed patients. Taken together, our results confirm the robust relationship between uraemia and oxidative stress, especially when measured as biomarkers of severe protein oxidative damage (e.g. plasma AOPP).
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Affiliation(s)
- Graziano Colombo
- Department of Biosciences (Department of Excellence 2018-2022), Università degli Studi di Milano, Milan, Italy
| | | | - Emanuela Astori
- Department of Biosciences (Department of Excellence 2018-2022), Università degli Studi di Milano, Milan, Italy
| | - Alessandra Altomare
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Milan, Italy
| | - Silvia Finazzi
- Nephrology Unit, Humanitas Clinical and Research Center, Rozzano, Italy
| | - Maria L Garavaglia
- Department of Biosciences (Department of Excellence 2018-2022), Università degli Studi di Milano, Milan, Italy
| | - Claudio Angelini
- Nephrology Unit, Humanitas Clinical and Research Center, Rozzano, Italy
| | - Aldo Milzani
- Department of Biosciences (Department of Excellence 2018-2022), Università degli Studi di Milano, Milan, Italy
| | | | - Isabella Dalle-Donne
- Department of Biosciences (Department of Excellence 2018-2022), Università degli Studi di Milano, Milan, Italy
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Masania J, Faustmann G, Anwar A, Hafner-Giessauf H, Rajpoot N, Grabher J, Rajpoot K, Tiran B, Obermayer-Pietsch B, Winklhofer-Roob BM, Roob JM, Rabbani N, Thornalley PJ. Urinary Metabolomic Markers of Protein Glycation, Oxidation, and Nitration in Early-Stage Decline in Metabolic, Vascular, and Renal Health. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:4851323. [PMID: 31827677 PMCID: PMC6885816 DOI: 10.1155/2019/4851323] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 09/07/2019] [Accepted: 09/11/2019] [Indexed: 11/17/2022]
Abstract
Glycation, oxidation, nitration, and crosslinking of proteins are implicated in the pathogenic mechanisms of type 2 diabetes, cardiovascular disease, and chronic kidney disease. Related modified amino acids formed by proteolysis are excreted in urine. We quantified urinary levels of these metabolites and branched-chain amino acids (BCAAs) in healthy subjects and assessed changes in early-stage decline in metabolic, vascular, and renal health and explored their diagnostic utility for a noninvasive health screen. We recruited 200 human subjects with early-stage health decline and healthy controls. Urinary amino acid metabolites were determined by stable isotopic dilution analysis liquid chromatography-tandem mass spectrometry. Machine learning was applied to optimise and validate algorithms to discriminate between study groups for potential diagnostic utility. Urinary analyte changes were as follows: impaired metabolic health-increased N ε -carboxymethyl-lysine, glucosepane, glutamic semialdehyde, and pyrraline; impaired vascular health-increased glucosepane; and impaired renal health-increased BCAAs and decreased N ε -(γ-glutamyl)lysine. Algorithms combining subject age, BMI, and BCAAs discriminated between healthy controls and impaired metabolic, vascular, and renal health study groups with accuracy of 84%, 72%, and 90%, respectively. In 2-step analysis, algorithms combining subject age, BMI, and urinary N ε -fructosyl-lysine and valine discriminated between healthy controls and impaired health (any type), accuracy of 78%, and then between types of health impairment with accuracy of 69%-78% (cf. random selection 33%). From likelihood ratios, this provided small, moderate, and conclusive evidence of early-stage cardiovascular, metabolic, and renal disease with diagnostic odds ratios of 6 - 7, 26 - 28, and 34 - 79, respectively. We conclude that measurement of urinary glycated, oxidized, crosslinked, and branched-chain amino acids provides the basis for a noninvasive health screen for early-stage health decline in metabolic, vascular, and renal health.
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Affiliation(s)
- Jinit Masania
- Warwick Medical School, Clinical Sciences Research Laboratories, University of Warwick, University Hospital, Coventry CV2 2DX, UK
| | - Gernot Faustmann
- Clinical Division of Nephrology, Department of Internal Medicine, Medical University of Graz, 8036 Graz, Austria
- Human Nutrition & Metabolism Research and Training Center (HNMRC), Institute of Molecular Biosciences, Karl Franzens University of Graz, Universitätsplatz 2, 8010 Graz, Austria
| | - Attia Anwar
- Warwick Medical School, Clinical Sciences Research Laboratories, University of Warwick, University Hospital, Coventry CV2 2DX, UK
| | - Hildegard Hafner-Giessauf
- Clinical Division of Nephrology, Department of Internal Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Nasir Rajpoot
- Department of Computer Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Johanna Grabher
- Clinical Division of Nephrology, Department of Internal Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Kashif Rajpoot
- School of Computer Science, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Beate Tiran
- Clinical Institute of Medical and Clinical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria
| | - Barbara Obermayer-Pietsch
- Clinical Division of Endocrinology, Department of Internal Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Brigitte M. Winklhofer-Roob
- Human Nutrition & Metabolism Research and Training Center (HNMRC), Institute of Molecular Biosciences, Karl Franzens University of Graz, Universitätsplatz 2, 8010 Graz, Austria
| | - Johannes M. Roob
- Clinical Division of Nephrology, Department of Internal Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Naila Rabbani
- Warwick Medical School, Clinical Sciences Research Laboratories, University of Warwick, University Hospital, Coventry CV2 2DX, UK
| | - Paul J. Thornalley
- Warwick Medical School, Clinical Sciences Research Laboratories, University of Warwick, University Hospital, Coventry CV2 2DX, UK
- Diabetes Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University, Qatar Foundation, P.O. Box 34110, Doha, Qatar
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28
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Dai L, Watanabe M, Qureshi AR, Mukai H, Machowska A, Heimbürger O, Barany P, Lindholm B, Stenvinkel P. Serum 8-hydroxydeoxyguanosine, a marker of oxidative DNA damage, is associated with mortality independent of inflammation in chronic kidney disease. Eur J Intern Med 2019; 68:60-65. [PMID: 31402276 DOI: 10.1016/j.ejim.2019.07.035] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/20/2019] [Accepted: 07/31/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Oxidative stress and low-grade systemic inflammation are common interrelated sequelae of chronic kidney disease (CKD) that associate with mortality. We investigated the association of serum 8-hydroxy-2'-deoxyguanosine (8-OHdG), a marker of oxidative DNA damage, with mortality in CKD individuals and analyzed whether inflammation modifies the association. METHODS In 376 individuals with a wide range of estimated glomerular filtration rate (eGFR); >60 ml/min (n = 53), 15-60 ml/min (n = 60) and <15 ml/min (n = 263), cut-off values of serum 8-OHdG, high-sensitivity C-reactive protein (hsCRP), interleukin-6 (IL-6), and tumor necrosis factor (TNF) as predictors of mortality were determined by ROC curves. We analyzed associations of 8-OHdG with inflammation markers and the overlapping effect of hsCRP, IL-6 and TNF on the association between 8-OHdG and all-cause mortality by multivariate generalized linear models. RESULTS In separate individual exposure analyses, higher 8-OHdG, hsCRP, and IL-6 (but not TNF) were each independently associated with increased risk of death in multivariate models adjusted for age, sex, diabetes mellitus, cardiovascular disease, protein-energy wasting, cohort calendar year, blood sample storage time and eGFR. For 8-OHdG, the multivariate relative risk ratio, RR8-OHdG (95% confidence interval) 1.17 (1.08-1.26), remained essentially unchanged when adjusting also for inflammation in three separate models including: hsCRP, RR8-OHdG = 1.15 (1.06-1.25); IL-6, RR8-OHdG = 1.15 (1.07-1.25); and TNF, RR8-OHdG = 1.16 (1.07-1.26). CONCLUSIONS Serum 8-OHdG, a biomarker of oxidative DNA damage, is associated with increased all-cause mortality risk in individuals with a wide range of eGFR and this association is independent of inflammation.
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Affiliation(s)
- Lu Dai
- Division of Renal Medicine and Baxter Novum, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Campus Flemingsberg, Stockholm, Sweden
| | - Makoto Watanabe
- Division of Nephrology, Department of Medicine, Showa University School of Medicine Tokyo, Tokyo, Japan
| | - Abdul Rashid Qureshi
- Division of Renal Medicine and Baxter Novum, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Campus Flemingsberg, Stockholm, Sweden
| | - Hideyuki Mukai
- Division of Renal Medicine and Baxter Novum, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Campus Flemingsberg, Stockholm, Sweden; Department of Nephrology, International University of Health and Welfare School of Medicine, Nasushiobara, Tochigi, Japan
| | - Anna Machowska
- Global Health - Health Systems and Policy, Department of Public Health Sciences, Karolinska Institutet, Sweden
| | - Olof Heimbürger
- Division of Renal Medicine and Baxter Novum, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Campus Flemingsberg, Stockholm, Sweden
| | - Peter Barany
- Division of Renal Medicine and Baxter Novum, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Campus Flemingsberg, Stockholm, Sweden
| | - Bengt Lindholm
- Division of Renal Medicine and Baxter Novum, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Campus Flemingsberg, Stockholm, Sweden.
| | - Peter Stenvinkel
- Division of Renal Medicine and Baxter Novum, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Campus Flemingsberg, Stockholm, Sweden
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Francisco-Marquez M, Galano A. Detailed Investigation of the Outstanding Peroxyl Radical Scavenging Activity of Two Novel Amino-Pyridinol-Based Compounds. J Chem Inf Model 2019; 59:3494-3505. [PMID: 31264854 DOI: 10.1021/acs.jcim.9b00517] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The ability of two novel amino-pyridinol based compounds (NPyr6 and NPyr7) as peroxyl radical scavengers was investigated in silico. The gathered data indicate that they are exceptionally efficient in that role. However, solvent polarity influences their relative efficiency for that purpose. NPyr6 was identified as the best peroxyl radical scavenger in lipid solution, while NPyr7 takes that place in aqueous solution. Both compounds present two acid-base equilibria, which influence their reactivity in aqueous solution. The associated pKa values were estimated. Several reaction mechanisms were explored. Hydrogen transfer from the phenolic group was identified as the chemical route with the highest contribution to the antioxidant behavior of the investigated compounds in both, nonpolar medium and aqueous solution (at 2 ≤ pH ≤ 10). At higher pH other reaction pathways become the most relevant ones. In addition, their bioavailability, cell permeability, safety, and manufacturability were evaluated. According to these, particularly toxicity, NPyr7 seems to be a better candidate for use as an oral drug to fight oxidative stress than NPyr6.
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Affiliation(s)
- Misaela Francisco-Marquez
- Instituto Politécnico Nacional-UPIICSA , Té 950, Col. Granjas México , C.P. 08400 México City , México
| | - Annia Galano
- Departamento de Química , Universidad Autónoma Metropolitana-Iztapalapa , San Rafael Atlixco 186, Col. Vicentina. Iztapalapa , C.P. 09340 , Mexico City , México
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30
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Chinnappa S, White E, Lewis N, Baldo O, Tu YK, Glorieux G, Vanholder R, El Nahas M, Mooney A. Early and asymptomatic cardiac dysfunction in chronic kidney disease. Nephrol Dial Transplant 2019; 33:450-458. [PMID: 28525624 DOI: 10.1093/ndt/gfx064] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 03/14/2017] [Indexed: 11/13/2022] Open
Abstract
Background Heart failure (HF) is highly prevalent and associated with high mortality in chronic kidney disease (CKD). However, the pathophysiology of cardiac dysfunction in CKD, especially in the early asymptomatic stage, is not well understood. We studied subclinical cardiac dysfunction in asymptomatic CKD patients without comorbid cardiac disease or diabetes mellitus by evaluating peak cardiac performance. Methods In a cross-sectional study (n = 130) we investigated 70 male non-diabetic CKD patients (21 CKD stage 2-3a, 27 CKD stage 3b-4 and 22 CKD stage 5) employing specialized cardiopulmonary exercise testing to measure peak cardiac output and cardiac power output non-invasively. Data from 35 age-matched healthy male volunteers were obtained for comparison. In addition, as a positive control, data from 25 age-matched male HF patients in New York Heart Association class II and III were also obtained. Results The study subjects showed a graded reduction in peak cardiac power, with 6.13 ± 1.11 W in controls, 5.02 ± 0.78 W in CKD 2-3a, 4.59 ± 0.53 W in CKD 3b-4 and 4.02 ± 0.73 W in CKD 5, although not as impaired as in HF, with 2.34 ± 0.63 W (all P < 0.005 versus control). The central haemodynamic characteristics of the cardiac impairment in CKD mirrored that of HF, with reduced flow and pressure-generating capacities, reduced chronotropic reserve and impaired contractility. Conclusions The study demonstrates for the first time impaired peak cardiac performance and cardiac functional reserve in asymptomatic CKD patients. The evidence of myocardial dysfunction in the absence of comorbid cardiac disease and diabetes warrants further evaluation of current pathophysiological concepts of cardiovascular disease in CKD.
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Affiliation(s)
- Shanmugakumar Chinnappa
- Department of Nephrology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.,Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Edward White
- School of Biomedical Sciences, University of Leeds, Leeds, UK
| | - Nigel Lewis
- Department of Cardiology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Omer Baldo
- Department of Urology, Airedale NHS Foundation Trust, Keighley, UK
| | - Yu-Kang Tu
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National University of Taiwan, Taiwan
| | - Griet Glorieux
- Department of Nephrology, Ghent University Hospital, Ghent, Belgium
| | | | - Meguid El Nahas
- Department of Nephrology, University of Sheffield, Sheffield, UK
| | - Andrew Mooney
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK.,Department of Nephrology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
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31
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Kurozumi A, Nakano K, Yamagata K, Okada Y, Nakayamada S, Tanaka Y. IL-6 and sIL-6R induces STAT3-dependent differentiation of human VSMCs into osteoblast-like cells through JMJD2B-mediated histone demethylation of RUNX2. Bone 2019; 124:53-61. [PMID: 30981888 DOI: 10.1016/j.bone.2019.04.006] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 03/30/2019] [Accepted: 04/11/2019] [Indexed: 12/11/2022]
Abstract
Inflammation and vascular calcification are independent risk factors of cardiovascular events. Vascular smooth muscle cells (VSMCs) exhibit osteoblast-like characteristics in response to various stimuli such as oxidized cholesterol and inflammation. However the precise mechanism of transcriptional regulation of VSMCs by inflammatory stimuli remains unclear. We investigated the process and mechanisms of inflammatory cytokine-induced transformation of human VSMCs (hVSMCs) into osteoblast-like cells, with a special focus on epigenetic changes. Our results demonstrated: (1) interleukin-6 (IL-6)/soluble interleukin-6 receptor (sIL-6R) induced transformation of hVSMCs into an osteoblast phenotype, with subsequent vascular calcification, based on the results of Alizarin Red S staining and O-Cresolphthalein complexone method; (2) IL-6/sIL-6R accelerated the expression of runt-related transcription factor 2 (RUNX2) based on the results of quantitative real-time polymerase chain reaction; (3) Knockdown of signal transducer and activator of transcription (STAT) 3 reduced IL-6/sIL-6R-induced RUNX2 mRNA expression and osteoblast transdifferentiation of hVSMCs; (4) Chromatin immunoprecipitation (ChIP) coupled with PCR (ChIP-PCR) identified a STAT-binding site in RUNX2 promoter region containing trimethylated histone 3 lysine 9 (H3K9me3), a transcriptional repressor, and H3K4me3, a transcriptional enhancer. Stimulation with IL-6/sIL-6R suppressed H3K9me3 but not H3K4me3 through the recruitment of jumonji domain-containing protein (JMJD) 2B, a histone lysine demethylase, at the STAT-binding site in RUNX2 promoter region; (5) IL-6/sIL-6R-induced RUNX2 gene expression was inhibited in hVSMCs pretreated with JIB04, JMJD2 inhibitor, and the inhibitory effect was JIB04 dose-dependent. Our results indicate that the IL-6/STAT3/JMJD2B pathway regulates hVSMCs differentiation into osteoblast-like cells, which suggest its pathogenic role in vascular calcification associated with chronic inflammation.
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Affiliation(s)
- Akira Kurozumi
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu 807-8555, Japan
| | - Kazuhisa Nakano
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu 807-8555, Japan
| | - Kaoru Yamagata
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu 807-8555, Japan
| | - Yosuke Okada
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu 807-8555, Japan
| | - Shingo Nakayamada
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu 807-8555, Japan
| | - Yoshiya Tanaka
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu 807-8555, Japan.
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Cases A, Cigarrán-Guldrís S, Mas S, Gonzalez-Parra E. Vegetable-Based Diets for Chronic Kidney Disease? It Is Time to Reconsider. Nutrients 2019; 11:E1263. [PMID: 31167346 PMCID: PMC6627351 DOI: 10.3390/nu11061263] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/23/2019] [Accepted: 05/30/2019] [Indexed: 12/12/2022] Open
Abstract
Traditional dietary recommendations to renal patients limited the intake of fruits and vegetables because of their high potassium content. However, this paradigm is rapidly changing due to the multiple benefits derived from a fundamentally vegetarian diet such as, improvement in gut dysbiosis, reducing the number of pathobionts and protein-fermenting species leading to a decreased production of the most harmful uremic toxins, while the high fiber content of these diets enhances intestinal motility and short-chain fatty acid production. Metabolic acidosis in chronic kidney disease (CKD) is aggravated by the high consumption of meat and refined cereals, increasing the dietary acid load, while the intake of fruit and vegetables is able to neutralize the acidosis and its deleterious consequences. Phosphorus absorption and bioavailability is also lower in a vegetarian diet, reducing hyperphosphatemia, a known cause of cardiovascular mortality in CKD. The richness of multiple plants in magnesium and vitamin K avoids their deficiency, which is common in these patients. These beneficial effects, together with the reduction of inflammation and oxidative stress observed with these diets, may explain the reduction in renal patients' complications and mortality, and may slow CKD progression. Finally, although hyperkalemia is the main concern of these diets, the use of adequate cooking techniques can minimize the amount absorbed.
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Affiliation(s)
- Aleix Cases
- Medicine Department, Universitat de Barcelona, Institut d'Investigacions Biomèqiques August Pi i Sunyer, 08036 Barcelona, Spain.
| | | | - Sebastián Mas
- Servicio de Nefrología, Fundación Jiménez Díaz, 28040 Madrid, Spain.
- Centro de investigación en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain.
| | - Emilio Gonzalez-Parra
- Servicio de Nefrología, Fundación Jiménez Díaz, 28040 Madrid, Spain.
- Red de Investigación Renal (RedinRen), 28029 Madrid, Spain.
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Revin VV, Gromova NV, Revina ES, Samonova AY, Tychkov AY, Bochkareva SS, Moskovkin AA, Kuzmenko TP. The Influence of Oxidative Stress and Natural Antioxidants on Morphometric Parameters of Red Blood Cells, the Hemoglobin Oxygen Binding Capacity, and the Activity of Antioxidant Enzymes. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2109269. [PMID: 30792991 PMCID: PMC6354144 DOI: 10.1155/2019/2109269] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 12/15/2018] [Accepted: 01/01/2019] [Indexed: 12/14/2022]
Abstract
Using a wide range of different physical and chemical methods, it was found that the oxidative stress caused by addition of hydrogen peroxide to the incubation medium has a significant effect on the conformation of haematoporphyrin, influencing the oxygen-binding properties of haemoglobin in red blood cells. Morphofunctional characteristics of red blood cells change; in particular, we have observed the transformation of erythrocytes, their transition into echinocytes. In erythrocytes, in response to increased lipid peroxidation (LPO) antioxidant enzymes become active. The use of natural antioxidants (β-carotene and resveratrol) works towards reducting the level of oxidative processes. Resveratrol has the greatest antioxidant effect.
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Affiliation(s)
- Victor V. Revin
- Federal State-Financed Academic Institution of Higher Education “National Research Ogarev Mordovia State University”, Saransk 430005, Russia
| | - Natalia V. Gromova
- Federal State-Financed Academic Institution of Higher Education “National Research Ogarev Mordovia State University”, Saransk 430005, Russia
| | - Elvira S. Revina
- Federal State-Financed Academic Institution of Higher Education “National Research Ogarev Mordovia State University”, Saransk 430005, Russia
| | - Anastasia Yu. Samonova
- Federal State-Financed Academic Institution of Higher Education “National Research Ogarev Mordovia State University”, Saransk 430005, Russia
| | - Alexander Yu. Tychkov
- Federal State-Financed Academic Institution of Higher Education “National Research Ogarev Mordovia State University”, Saransk 430005, Russia
| | - Svetlana S. Bochkareva
- Federal State-Financed Academic Institution of Higher Education “National Research Ogarev Mordovia State University”, Saransk 430005, Russia
| | - Alexander A. Moskovkin
- Federal State-Financed Academic Institution of Higher Education “National Research Ogarev Mordovia State University”, Saransk 430005, Russia
| | - Tatyana P. Kuzmenko
- Federal State-Financed Academic Institution of Higher Education “National Research Ogarev Mordovia State University”, Saransk 430005, Russia
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de Almeida Alvarenga L, Borges NA, Moreira LDSG, Resende Teixeira KT, Carraro-Eduardo JC, Dai L, Stenvinkel P, Lindholm B, Mafra D. Cranberries – potential benefits in patients with chronic kidney disease. Food Funct 2019; 10:3103-3112. [DOI: 10.1039/c9fo00375d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Patients with chronic kidney disease (CKD) present many complications that potentially could be linked to increased cardiovascular mortality such as inflammation, oxidative stress, cellular senescence and gut dysbiosis.
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Affiliation(s)
| | - Natália Alvarenga Borges
- Graduate Program in Nutrition Sciences
- Fluminense Federal University (UFF)
- Niterói
- Brazil
- Graduate Program in Cardiovascular Sciences
| | | | | | | | - Lu Dai
- Division of Renal Medicine and Baxter Novum
- Department of Clinical Science
- Technology and Intervention
- Karolinska Institutet
- Stockholm
| | - Peter Stenvinkel
- Division of Renal Medicine and Baxter Novum
- Department of Clinical Science
- Technology and Intervention
- Karolinska Institutet
- Stockholm
| | - Bengt Lindholm
- Division of Renal Medicine and Baxter Novum
- Department of Clinical Science
- Technology and Intervention
- Karolinska Institutet
- Stockholm
| | - Denise Mafra
- Graduate Program in Medical Sciences
- Fluminense Federal University (UFF)
- Niterói
- Brazil
- Graduate Program in Nutrition Sciences
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Liu BC, Tang TT, Lv LL. How Tubular Epithelial Cell Injury Contributes to Renal Fibrosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1165:233-252. [PMID: 31399968 DOI: 10.1007/978-981-13-8871-2_11] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The renal tubules are the major component of the kidney and are vulnerable to a variety of injuries including ischemia, proteinuria, toxins, and metabolic disorders. It has long been believed that tubules are the victim of injury. In this review, we shift this concept to renal tubules as a driving force in the progression of kidney disease. In response to injury, tubular epithelial cells (TECs) can synthesize and secrete varieties of bioactive molecules that drive interstitial inflammation and fibrosis. Innate immune-sensing receptors on the TECs also aggravate immune responses. Necroinflammation, an auto-amplification loop between tubular cell death and interstitial inflammation, leads to the exacerbation of renal injury. Furthermore, TECs also play an active role in progressive renal injury via mechanisms associated with the conversion into collagen-producing fibroblast phenotype, cell cycle arrest at both G1/S and G2/M checkpoints, and metabolic disorder. Thus, a better understanding the mechanisms by which tubular injury drives AKI and CKD is necessary for the development of therapeutics to halt the progression of CKD.
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Affiliation(s)
- Bi-Cheng Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, China.
| | - Tao-Tao Tang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, China
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Galano A, Reiter RJ. Melatonin and its metabolites vs oxidative stress: From individual actions to collective protection. J Pineal Res 2018; 65:e12514. [PMID: 29888508 DOI: 10.1111/jpi.12514] [Citation(s) in RCA: 197] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/05/2018] [Indexed: 12/11/2022]
Abstract
Oxidative stress (OS) represents a threat to the chemical integrity of biomolecules including lipids, proteins, and DNA. The associated molecular damage frequently results in serious health issues, which justifies our concern about this phenomenon. In addition to enzymatic defense mechanisms, there are compounds (usually referred to as antioxidants) that offer chemical protection against oxidative events. Among them, melatonin and its metabolites constitute a particularly efficient chemical family. They offer protection against OS as individual chemical entities through a wide variety of mechanisms including electron transfer, hydrogen transfer, radical adduct formation, and metal chelation, and by repairing biological targets. In fact, many of them including melatonin can be classified as multipurpose antioxidants. However, what seems to be unique to the melatonin's family is their collective effects. Because the members of this family are metabolically related, most of them are expected to be present in living organisms wherever melatonin is produced. Therefore, the protection exerted by melatonin against OS may be viewed as a result of the combined antioxidant effects of the parent molecule and its metabolites. Melatonin's family is rather exceptional in this regard, offering versatile and collective antioxidant protection against OS. It certainly seems that melatonin is one of the best nature's defenses against oxidative damage.
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Affiliation(s)
- Annia Galano
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, México City, México
| | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health Science Center, San Antonio, TX, USA
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Kohlová M, Amorim CG, Araújo A, Santos-Silva A, Solich P, Montenegro MCBSM. The biocompatibility and bioactivity of hemodialysis membranes: their impact in end-stage renal disease. J Artif Organs 2018; 22:14-28. [DOI: 10.1007/s10047-018-1059-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/08/2018] [Indexed: 12/15/2022]
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Tariq A, Mansoor MA, Marti HP, Jonsson G, Slettan A, Weeraman P, Apeland T. Systemic redox biomarkers and their relationship to prognostic risk markers in autosomal dominant polycystic kidney disease and IgA nephropathy. Clin Biochem 2018; 56:33-40. [DOI: 10.1016/j.clinbiochem.2018.04.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 04/07/2018] [Accepted: 04/11/2018] [Indexed: 12/21/2022]
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Kostyuk SV, Porokhovnik LN, Ershova ES, Malinovskaya EM, Konkova MS, Kameneva LV, Dolgikh OA, Veiko VP, Pisarev VM, Martynov AV, Sergeeva VA, Kaliyanov AA, Filev AD, Chudakova JM, Abramova MS, Kutsev SI, Izhevskaya VL, Veiko NN. Changes of KEAP1/NRF2 and IKB/NF- κB Expression Levels Induced by Cell-Free DNA in Different Cell Types. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:1052413. [PMID: 29743966 PMCID: PMC5883976 DOI: 10.1155/2018/1052413] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 12/31/2017] [Accepted: 01/17/2018] [Indexed: 12/11/2022]
Abstract
Cell-free DNA (cfDNA) is a circulating DNA of nuclear and mitochondrial origin mainly derived from dying cells. Recent studies have shown that cfDNA is a stress signaling DAMP (damage-associated molecular pattern) molecule. We report here that the expression profiles of cfDNA-induced factors NRF2 and NF-κB are distinct depending on the target cell's type and the GC-content and oxidation rate of the cfDNA. Stem cells (MSC) have shown higher expression of NRF2 without inflammation in response to cfDNA. In contrast, inflammatory response launched by NF-κB was dominant in differentiated cells HUVEC, MCF7, and fibroblasts, with a possibility of transition to massive apoptosis. In each cell type examined, the response for oxidized cfDNA was more acute with higher peak intensity and faster resolution than that for nonoxidized cfDNA. GC-rich nonoxidized cfDNA evoked a weaker and prolonged response with proinflammatory component (NF-κB) as predominant. The exploration of apoptosis rates after adding cfDNA showed that cfDNA with moderately increased GC-content and lightly oxidized DNA promoted cell survival in a hormetic manner. Novel potential therapeutic approaches are proposed, which depend on the current cfDNA content: either preconditioning with low doses of cfDNA before a planned adverse impact or eliminating (binding, etc.) cfDNA when its content has already become high.
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Affiliation(s)
| | - Lev N. Porokhovnik
- Research Centre for Medical Genetics (RCMG), Moscow 115478, Russia
- V. A. Negovsky Research Institute of General Reanimatology, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, Moscow 107031, Russia
| | - Elizaveta S. Ershova
- Research Centre for Medical Genetics (RCMG), Moscow 115478, Russia
- V. A. Negovsky Research Institute of General Reanimatology, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, Moscow 107031, Russia
| | | | | | | | - Olga A. Dolgikh
- Research Centre for Medical Genetics (RCMG), Moscow 115478, Russia
| | - Vladimir P. Veiko
- A. N. Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
| | - Vladimir M. Pisarev
- V. A. Negovsky Research Institute of General Reanimatology, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, Moscow 107031, Russia
| | | | | | | | - Anton D. Filev
- Research Centre for Medical Genetics (RCMG), Moscow 115478, Russia
- V. A. Negovsky Research Institute of General Reanimatology, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, Moscow 107031, Russia
| | | | - Margarita S. Abramova
- Research Centre for Medical Genetics (RCMG), Moscow 115478, Russia
- N. I. Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Serguey I. Kutsev
- Research Centre for Medical Genetics (RCMG), Moscow 115478, Russia
- N. I. Pirogov Russian National Research Medical University, Moscow 117997, Russia
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Liu BC, Tang TT, Lv LL, Lan HY. Renal tubule injury: a driving force toward chronic kidney disease. Kidney Int 2018; 93:568-579. [DOI: 10.1016/j.kint.2017.09.033] [Citation(s) in RCA: 260] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 08/17/2017] [Accepted: 09/06/2017] [Indexed: 12/13/2022]
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Bosch-Panadero E, Mas S, Civantos E, Abaigar P, Camarero V, Ruiz-Priego A, Ortiz A, Egido J, González-Parra E. Bisphenol A is an exogenous toxin that promotes mitochondrial injury and death in tubular cells. ENVIRONMENTAL TOXICOLOGY 2018; 33:325-332. [PMID: 29214717 DOI: 10.1002/tox.22519] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 11/08/2017] [Accepted: 11/17/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Uremic toxins that accumulate in chronic kidney disease (CKD) contribute to CKD complications, such as CKD progression. Bisphenol A (BPA) is a ubiquitous environmental toxin, structurally related with p-cresol, that accumulates in CKD. Our aim was to characterize the nephrotoxic potential of BPA. Specifically, we addressed BPA toxicity over energy-demanding proximal tubular cells. METHODS Cell death and oxidative stress were evaluated by flow cytometry and confocal microscopy in HK-2 human proximal tubular epithelial cells. Functional assays tested ATP, intracellular Ca2+ , mitochondrial function (tetramethylrhodamine methyl [TMRM]), oxygen consumption, Nrf2-binding, MitoSOX, and NADPH oxidase activity. Gene expression was assessed by qRT-PCR. RESULTS Following acute exposure (24 hours), proximal tubular cell viability was decreased by BPA concentrations ≥50 μM while a seven-day exposure resulted in a progressive loss of cell viability at a nanomolar range. Within 24 hours, BPA promoted mitochondrial dysfunction leading to energy depletion and increased mitochondrial and cytoplasmic oxidative stress and apoptosis in a concentration-dependent manner. An antioxidant response was observed manifested by nuclear Nrf2 translocation and increased expression of the Nrf2 target genes Heme oxygenase 1 (HO-1) and NAD(P)H dehydrogenase [quinone] 1 (NQO-1). CONCLUSIONS This study demonstrates for the first time that BPA causes mitochondrial injury, oxidative stress and apoptotic death in tubular cells. These results characterize BPA as an exogenous toxin that, similar to uremic toxins, may contribute to CKD progression.
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Affiliation(s)
- Enrique Bosch-Panadero
- Renal, Vascular and Diabetes Research Laboratory, Av Reyes Catolicos 2, Madrid, E-28040, Spain
| | - Sebastian Mas
- Renal, Vascular and Diabetes Research Laboratory, Av Reyes Catolicos 2, Madrid, E-28040, Spain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Spain
| | - Esther Civantos
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Spain
| | - Pedro Abaigar
- Division of Nephrology, Hospital Universitario de Burgos, Burgos, Spain
| | - Vanesa Camarero
- Division of Nephrology, Hospital Universitario de Burgos, Burgos, Spain
| | - Alberto Ruiz-Priego
- Renal, Vascular and Diabetes Research Laboratory, Av Reyes Catolicos 2, Madrid, E-28040, Spain
| | - Alberto Ortiz
- Renal, Vascular and Diabetes Research Laboratory, Av Reyes Catolicos 2, Madrid, E-28040, Spain
- Division of Nephrology and Hypertension, IIS-Fundación Jimenez Diaz UAM, Madrid, Spain
- Department of Medicine, UAM, Madrid, Spain
- Kidney Research Network (REDINREN), Madrid, Spain
| | - Jesus Egido
- Renal, Vascular and Diabetes Research Laboratory, Av Reyes Catolicos 2, Madrid, E-28040, Spain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Spain
- Division of Nephrology and Hypertension, IIS-Fundación Jimenez Diaz UAM, Madrid, Spain
- Department of Medicine, UAM, Madrid, Spain
| | - Emilio González-Parra
- Renal, Vascular and Diabetes Research Laboratory, Av Reyes Catolicos 2, Madrid, E-28040, Spain
- Division of Nephrology and Hypertension, IIS-Fundación Jimenez Diaz UAM, Madrid, Spain
- Department of Medicine, UAM, Madrid, Spain
- Kidney Research Network (REDINREN), Madrid, Spain
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Edamatsu T, Fujieda A, Itoh Y. Phenyl sulfate, indoxyl sulfate and p-cresyl sulfate decrease glutathione level to render cells vulnerable to oxidative stress in renal tubular cells. PLoS One 2018; 13:e0193342. [PMID: 29474405 PMCID: PMC5825083 DOI: 10.1371/journal.pone.0193342] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 02/08/2018] [Indexed: 12/30/2022] Open
Abstract
In chronic kidney disease patients, oxidative stress is generally associated with disease progression and pathogenesis of its comorbidities. Phenyl sulfate is a protein-bound uremic solute, which accumulates in chronic kidney disease patients, but little is known about its nature. Although many reports revealed that protein-bound uremic solutes induce reactive oxygen species production, the effects of these solutes on anti-oxidant level have not been well studied. Therefore, we examined the effects of protein-bound uremic solutes on glutathione levels. As a result, indoxyl sulfate, phenyl sulfate, and p-cresyl sulfate decreased glutathione levels in porcine renal tubular cells. Next we examined whether phenyl sulfate-treated cells becomes vulnerable to oxidative stress. In phenyl sulfate-treated cells, hydrogen peroxide induced higher rates of cell death than in control cells. Buthionine sulfoximine, which is known to decrease glutathione level, well mimicked the effect of phenyl sulfate. Finally, we evaluated a mixture of indoxyl sulfate, phenyl sulfate, and p-cresyl sulfate at concentrations comparable to the serum concentrations of hemodialysis patients, and we confirmed its decreasing effect on glutathione level. In conclusion, indoxyl sulfate, phenyl sulfate, and p-cresyl sulfate decrease glutathione levels, rendering the cells vulnerable to oxidative stress.
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Affiliation(s)
- Takeo Edamatsu
- Pharmaceuticals & Agrochemicals Division, Kureha Corporation, Tokyo, Japan
- * E-mail:
| | - Ayako Fujieda
- Pharmaceuticals & Agrochemicals Division, Kureha Corporation, Tokyo, Japan
| | - Yoshiharu Itoh
- Pharmaceuticals & Agrochemicals Division, Kureha Corporation, Tokyo, Japan
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Eroglu E, Unal HU, Guclu A, Kocyigit I, Karaman M, Saglam M, Gezer M, Tas A, Zararsiz G, Eyileten T, Aydin İ, Oguz Y, Gungor O, Yilmaz MI. The association of profilin-1 levels with survival in chronic kidney disease. Eur J Clin Invest 2017; 47. [PMID: 28981140 DOI: 10.1111/eci.12839] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 10/01/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND Profilin-1 is a ubiquitous, actin-binding protein that plays an important role in the regulation of actin polymerization and cytoskeleton remodelling and contributes to vascular dysfunction. We conducted this study to investigate the association of serum profilin-1 levels with fatal and nonfatal CVE in a cohort of patients with stage 1-5 CKD. MATERIALS AND METHODS Serum concentrations of profilin-1 levels were determined by enzyme-linked immunosorbent assay. Endothelium-dependent vasodilatation (flow-mediated dilatation [FMD]) and endothelium-independent vasodilatation (nitroglycerine-mediated dilatation [NMD]) of the brachial artery were assessed noninvasively, using high-resolution ultrasound. RESULTS Both fatal and nonfatal CVE were significantly higher in patients with high profilin-1 levels. Kaplan-Meier survival curves showed that patients with profilin-1 below the median value (114 pg/mL) had higher cumulative survival compared with patients who had profilin-1 levels above the median value (log-rank test, P < .001). CONCLUSIONS This is the first study that demonstrates the serum profilin-1 is independently associated with endothelial dysfunction, cardiovascular events and survival in patients with CKD.
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Affiliation(s)
- Eray Eroglu
- Department of Nephrology, Erciyes University School of Medicine, Kayseri, Turkey
| | - Hilmi U Unal
- Department of Nephrology, Gulhane School of Medicine, Ankara, Turkey
| | - Aydin Guclu
- Department of Nephrology, Ahi Evran University, Training and Research Hospital, Kirsehir, Turkey
| | - Ismail Kocyigit
- Department of Nephrology, Erciyes University School of Medicine, Kayseri, Turkey
| | - Murat Karaman
- Department of Nephrology, Gulhane School of Medicine, Ankara, Turkey
| | - Mutlu Saglam
- Department of Radiology, Gulhane School of Medicine, Ankara, Turkey
| | - Mustafa Gezer
- Department of Nephrology, Gulhane School of Medicine, Ankara, Turkey
| | - Ahmet Tas
- Department of Biochemistry, Gulhane School of Medicine, Ankara, Turkey
| | - Gokmen Zararsiz
- Department of Biostatistics, Erciyes University School of Medicine, Kayseri, Turkey
| | - Tayfun Eyileten
- Department of Nephrology, Gulhane School of Medicine, Ankara, Turkey
| | - İbrahim Aydin
- Department of Biochemistry, Gulhane School of Medicine, Ankara, Turkey
| | - Yusuf Oguz
- Department of Nephrology, Gulhane School of Medicine, Ankara, Turkey
| | - Ozkan Gungor
- Department of Nephrology, Sutcu Imam University School of Medicine, Kahramanmaras, Turkey
| | - Mahmut I Yilmaz
- Department of Nephrology, Gulhane School of Medicine, Ankara, Turkey
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Berns JS. Interpretation of the Kidney Disease: Improving Global Outcomes guidelines for iron therapy: commentary and emerging evidence. Clin Kidney J 2017; 10:i3-i8. [PMID: 29225817 PMCID: PMC5716187 DOI: 10.1093/ckj/sfx042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 04/05/2017] [Indexed: 12/12/2022] Open
Abstract
The ‘Kidney Disease: Improving Global Outcomes’ (KDIGO) Clinical Practice Guideline for Anaemia in Chronic Kidney Disease includes detailed recommendations for the use of iron therapy in a variety of clinical circumstances. However, the evidence base regarding the use of iron therapy in patients with chronic kidney disease was relatively incomplete at the time the guideline was developed. As a result, there has been significant debate as to the appropriate use of iron therapy in this population. In this article, the KDIGO guidelines are discussed in the context of recently published commentary pieces and additional research to provide a richer context in which to interpret and understand the guidelines.
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Affiliation(s)
- Jeffrey S Berns
- Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, USA
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Izumi Y, Kataoka H, Inose Y, Akaike A, Koyama Y, Kume T. Neuroprotective effect of an Nrf2-ARE activator identified from a chemical library on dopaminergic neurons. Eur J Pharmacol 2017; 818:470-479. [PMID: 29154837 DOI: 10.1016/j.ejphar.2017.11.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 11/13/2017] [Accepted: 11/13/2017] [Indexed: 12/21/2022]
Abstract
The nuclear factor erythroid 2-related factor 2 (Nrf2)-antioxidant response element (ARE) pathway, which induces the production of antioxidant enzymes, is a possible therapeutic target for treating diseases related to oxidative stress. Nrf2 activators often exhibit cytotoxicity due to nonspecific electrophilic reactions with thiol groups. We screened a chemical library to explore Nrf2 activators with a wide safety margin. In at least in vitro experiments, TPNA10168, identified from the library, showed a higher efficacy in Nrf2 activation and a lower cytotoxicity than sulforaphane, a well-known Nrf2 activator. The present study demonstrated the protective effect of TPNA10168 against 6-hydroxydopamine-induced cytotoxicity. In PC12 cells, NAD(P)H:quinone oxidoreductase 1 was upregulated by TPNA10168 and participated in the protective effect. In primary mesencephalic cultures, heme oxygenase-1, upregulated by TPNA10168 in astrocytes, provided protection of dopaminergic neurons via a guanylate cyclase/protein kinase G signaling pathway via carbon monoxide. These results suggest that the compound identified from the chemical library may be suitable as a neuroprotective agent with the ability to induce antioxidant enzymes.
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Affiliation(s)
- Yasuhiko Izumi
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan; Department of Pharmacology, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe 658-8558, Japan
| | - Harue Kataoka
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yuri Inose
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Akinori Akaike
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yutaka Koyama
- Department of Pharmacology, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe 658-8558, Japan
| | - Toshiaki Kume
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan.
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46
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Potential Health Implications of the Consumption of Thermally-Oxidized Cooking Oils – a Review. POL J FOOD NUTR SCI 2017. [DOI: 10.1515/pjfns-2016-0028] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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47
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Vinothkumar G, Kedharnath C, Krishnakumar S, Sreedhar S, Preethikrishnan K, Dinesh S, Sundaram A, Balakrishnan D, Shivashekar G, Sureshkumar, Venkataraman P. Abnormal amyloid β 42 expression and increased oxidative stress in plasma of CKD patients with cognitive dysfunction: A small scale case control study comparison with Alzheimer's disease. BBA CLINICAL 2017; 8:20-27. [PMID: 28702365 PMCID: PMC5491400 DOI: 10.1016/j.bbacli.2017.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 06/02/2017] [Accepted: 06/20/2017] [Indexed: 01/31/2023]
Abstract
Background Cognitive dysfunction has been increasingly recognized in chronic kidney disease (CKD) patients. Senile plaques are important pathophysiological characteristic of cognitive dysfunction. The major component of plaques is the amyloid β (Aβ) peptide released from proteolytic cleavage of amyloid precursor protein (APP). Plasma Aβ has been a focus of the growing literature on blood based biomarkers for cognitive dysfunction. Oxidative stress is prevalent in CKD and it plays an important role in cognitive dysfunction. Increased oxidative stress leads to cause cleavage of APP and Aβ production. The aim of this study is to assess the antioxidant status and Aβ42 levels in plasma of CKD patients with cognitive dysfunction compared to CKD without cognitive dysfunction. Methods A total of 60 subjects divided into 30 CKD without cognitive dysfunction and 30 CKD with cognitive dysfunction based on neuropsychological assessment tests. To compare antioxidant status and Aβ42 levels in plasma, the following groups such as healthy subjects (n = 30), normocytic normochromic anemia (n = 30) and Alzheimer's disease (AD, n = 10) patients were also maintained. Plasma Superoxide dismutase (SOD), Catalase (CAT), Glutathione peroxidase (GPx), Reduced glutathione (GSH) and lipid peroxidation (LPO) were determined by spectrophotometrically. Aβ level was determined by immunoblotting method. The parameters were statistically compared with healthy, normocytic normochromic anemia and AD subjects. Results Like AD subjects, significantly increased Aβ and LPO level while decreased SOD, CAT, GPx and GSH levels were observed in plasma of CKD patients with cognitive dysfunction when compared to healthy, CKD without cognitive dysfunction and normocytic normochromic anemic subjects. Conclusion Results suggest that elevated plasma oxidative stress and Aβ were seen in CKD patients with cognitive dysfunction may be attributed to pathological changes within the brain. Cognitive dysfunction has been increasingly recognized in chronic kidney disease (CKD) patients. The major component of plaques is the amyloid β peptide released from proteolytic cleavage of amyloid precursor protein. Plasma Aβ has been a focus of the growing literature on blood based biomarkers for cognitive dysfunction. Oxidative stress is prevalent in CKD and it plays an important role in cognitive dysfunction. Increased oxidative stress leads to cause cleavage of APP and Aβ production.
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Affiliation(s)
- G Vinothkumar
- Department of Medical Research, SRM Medical College Hospital, SRM University, Chennai, India
| | - C Kedharnath
- Department of Nephrology, SRM Medical College Hospital, SRM University, Chennai, India
| | - S Krishnakumar
- Department of Nephrology, SRM Medical College Hospital, SRM University, Chennai, India
| | - S Sreedhar
- Department of Nephrology, SRM Medical College Hospital, SRM University, Chennai, India
| | - K Preethikrishnan
- Department of Clinical Psychology, SRM Medical College Hospital, SRM University, Chennai, India
| | - S Dinesh
- Department of Clinical Psychology, SRM Medical College Hospital, SRM University, Chennai, India
| | - A Sundaram
- Department of Medical Research, SRM Medical College Hospital, SRM University, Chennai, India
| | - D Balakrishnan
- Department of Medical Research, SRM Medical College Hospital, SRM University, Chennai, India
| | - G Shivashekar
- Department of Pathology, SRM Medical College Hospital, SRM University, Chennai, India
| | - Sureshkumar
- Department of Neurology, Balaji Medical College Hospital, Chrompet, Chennai, India
| | - P Venkataraman
- Department of Medical Research, SRM Medical College Hospital, SRM University, Chennai, India
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Yang K, Du C, Wang X, Li F, Xu Y, Wang S, Chen S, Chen F, Shen M, Chen M, Hu M, He T, Su Y, Wang J, Zhao J. Indoxyl sulfate induces platelet hyperactivity and contributes to chronic kidney disease-associated thrombosis in mice. Blood 2017; 129:2667-2679. [PMID: 28264799 DOI: 10.1182/blood-2016-10-744060] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 02/28/2017] [Indexed: 12/21/2022] Open
Abstract
Thrombosis is a common complication of chronic kidney disease (CKD), but the causes and mechanisms of CKD-associated thrombosis are not well clarified. Here, we show that platelet activity is remarkably enhanced in CKD mice, with increase of serum indoxyl sulfate (IS), a typical uremic toxin, which cannot be effectively cleared by routine dialysis. Ex vivo and in vitro experiments reveal that IS displays a distinct ability to enhance platelet activities, including elevated response to collagen and thrombin, increases in platelet-derived microparticles, and platelet-monocyte aggregates. The flow chamber assay and carotid artery thrombosis model demonstrate that IS-induced platelet hyperactivity contributes to thrombus formation. Further investigations disclose that reactive oxygen species (ROS)-mediated p38MAPK signaling plays a key role in IS-induced platelet hyperactivity. Moreover, we show that Klotho, which is expressed dominantly in the kidneys, has the capacity to counteract IS-induced platelet hyperactivity by inhibiting ROS/p38MAPK signaling, whereas Klotho reduction may aggravate the effect of IS on platelet activation in CKD and klotho+/- mice. Finally, we demonstrate that Klotho protein treatment can protect against IS-induced thrombosis and atherosclerosis in apoE-/- mice. Our findings uncover the mechanism of platelet hyperactivity induced by IS and provide new insights into the pathogenesis and treatment of CKD-associated thrombosis.
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Affiliation(s)
- Ke Yang
- Department of Nephrology, Xinqiao Hospital, Third Military Medical University, Chongqing, China; and
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Changhong Du
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Xinmiao Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Fengju Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Yang Xu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Song Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Shilei Chen
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Fang Chen
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Mingqiang Shen
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Mo Chen
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Mengjia Hu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Ting He
- Department of Nephrology, Xinqiao Hospital, Third Military Medical University, Chongqing, China; and
| | - Yongping Su
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Junping Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Chongqing, China
| | - Jinghong Zhao
- Department of Nephrology, Xinqiao Hospital, Third Military Medical University, Chongqing, China; and
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49
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Zoccali C, Vanholder R, Massy ZA, Ortiz A, Sarafidis P, Dekker FW, Fliser D, Fouque D, Heine GH, Jager KJ, Kanbay M, Mallamaci F, Parati G, Rossignol P, Wiecek A, London G. The systemic nature of CKD. Nat Rev Nephrol 2017; 13:344-358. [PMID: 28435157 DOI: 10.1038/nrneph.2017.52] [Citation(s) in RCA: 234] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The accurate definition and staging of chronic kidney disease (CKD) is one of the major achievements of modern nephrology. Intensive research is now being undertaken to unravel the risk factors and pathophysiologic underpinnings of this disease. In particular, the relationships between the kidney and other organs have been comprehensively investigated in experimental and clinical studies in the last two decades. Owing to technological and analytical limitations, these links have been studied with a reductionist approach focusing on two organs at a time, such as the heart and the kidney or the bone and the kidney. Here, we discuss studies that highlight the complex and systemic nature of CKD. Energy balance, innate immunity and neuroendocrine signalling are highly integrated biological phenomena. The diseased kidney disrupts such integration and generates a high-risk phenotype with a clinical profile encompassing inflammation, protein-energy wasting, altered function of the autonomic and central nervous systems and cardiopulmonary, vascular and bone diseases. A systems biology approach to CKD using omics techniques will hopefully enable in-depth study of the pathophysiology of this systemic disease, and has the potential to unravel critical pathways that can be targeted for CKD prevention and therapy.
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Affiliation(s)
- Carmine Zoccali
- CNR-IFC Clinical Epidemiology and Pathophysiology of Renal Diseases and Hypertension Unit, Ospedali Riuniti 89124 Reggio Calabria, Italy
| | - Raymond Vanholder
- Ghent University Hospital, Department of Nephrology, Department of Internal Medicine, University Hospital Gent, De Pintelaan 185, B9000 Ghent, Belgium
| | - Ziad A Massy
- Division of Nephrology, Ambroise Paré Hospital, Assistance Publique Hôpitaux de Paris, 9 Avenue Charles de Gaulle, 92100 Boulogne-Billancourt, Paris.,University of Paris Ouest-Versailles-Saint-Quentin-en-Yvelines (UVSQ), 55 Avenue de Paris, 78000 Versailles, France.,Inserm U-1018, Centre de recherche en épidémiologie et santé des populations (CESP), Equipe 5, Hôpital Paul-Brousse, 16 avenue Paul Vaillant-Couturier, 94807 Villejuif Cedex, France.,Paris-Sud University (PSU), 15 Rue Georges Clemenceau, 91400 Orsay, France.,French-Clinical Research Infrastructure Network (F-CRIN), Pavillon Leriche 2è étage CHU de Toulouse, Place Dr Baylac TSA40031, 31059 TOULOUSE Cedex 3, France
| | - Alberto Ortiz
- Fundación Jiménez Díaz, Universidad Autónoma de Madrid, Fundación Renal Iñigo Alvarez de Toledo, Madrid, Av. Reyes Católicos, 2, 28040 Madrid, Spain
| | - Pantelis Sarafidis
- Department of Nephrology, Hippokration Hospital, Thessaloniki, Konstantinoupoleos 49, Thessaloniki 546 42, Greece
| | - Friedo W Dekker
- Department of Clinical Epidemiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Danilo Fliser
- Department Internal Medicine IV-Renal and Hypertensive Disease-Saarland University Medical Centre Kirrberger Straß 66421 Homburg, Saar, Germany
| | - Denis Fouque
- Université de Lyon, UCBL, Carmen, Department of Nephrology, Centre Hospitalier Lyon-Sud, F-69495 Pierre Bénite, France
| | - Gunnar H Heine
- Department Internal Medicine IV-Renal and Hypertensive Disease-Saarland University Medical Centre Kirrberger Straß 66421 Homburg, Saar, Germany
| | - Kitty J Jager
- European Renal Association-European Dialysis and Transplant Association (ERA-EDTA) Registry, Department of Medical Informatics, Meibergdreef 9, 1105 AZ Amsterdam-Zuidoost, The Netherlands
| | - Mehmet Kanbay
- Division of Nephrology, Department of Medicine,Koç University, Rumelifeneri Yolu 34450 Sarıyer Istanbul, Turkey
| | - Francesca Mallamaci
- CNR-IFC Clinical Epidemiology and Pathophysiology of Renal Diseases and Hypertension Unit, Ospedali Riuniti 89124 Reggio Calabria, Italy.,Nephrology, Dialysis and Transplantation Unit Ospedali Riuniti, 89124 Reggio Calabria Italy
| | - Gianfranco Parati
- Department of Cardiovascular, Neural and Metabolic Sciences, S. Luca Hospital, Istituto Auxologico Italiano &Department of Medicine and Surgery, University of Milan-Bicocca, Piazzale Brescia 20, Milan 20149, Italy
| | - Patrick Rossignol
- French-Clinical Research Infrastructure Network (F-CRIN), Pavillon Leriche 2è étage CHU de Toulouse, Place Dr Baylac TSA40031, 31059 TOULOUSE Cedex 3, France.,Inserm, Centre d'Investigations Cliniques-Plurithématique 1433, Cardiovascular and Renal Clinical Trialists (INI-CRCT), Institut Lorrain du Cœur et des Vaisseaux Louis Mathieu, 4 rue Morvan, 54500 Vandoeuvre-les-Nancy, France.,Inserm U1116, Faculté de Médecine, Bâtiment D 1er étage, 9 avenue de la forêt de Haye - BP 184, 54500 Vandœuvre-lès-Nancy Cedex, France.,CHU Nancy, Département de Cardiologie, Institut Lorrain du Cœur et des Vaisseaux, 5 Rue du Morvan, 54500 Vandœuvre-lès-Nancy, France.,Université de Lorraine, 34 Cours Léopold, 54000 Nancy, France
| | - Andrzej Wiecek
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia, Francuska 20/24 Street, Pl-40-027 Katowice, Poland
| | - Gerard London
- INSERM U970, Hopital Européen Georges Pompidou, 20 Rue Leblanc, 75015 Paris, France
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Targher G, Byrne CD. Non-alcoholic fatty liver disease: an emerging driving force in chronic kidney disease. Nat Rev Nephrol 2017; 13:297-310. [PMID: 28218263 DOI: 10.1038/nrneph.2017.16] [Citation(s) in RCA: 194] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is caused by an accumulation of fat in the liver; the condition can progress over time to increase the risk of developing cirrhosis, end-stage liver disease and hepatocellular carcinoma. The prevalence of NAFLD is increasing rapidly owing to the global epidemics of obesity and type 2 diabetes mellitus (T2DM), and NAFLD has been predicted to become the most important indication for liver transplantation over the next decade. It is now increasingly clear that NAFLD not only affects the liver but can also increase the risk of developing extra-hepatic diseases, including T2DM, cardiovascular disease and chronic kidney disease (CKD), which have a considerable impact on health-care resources. Accumulating evidence indicates that NAFLD exacerbates insulin resistance, predisposes to atherogenic dyslipidaemia and releases a variety of proinflammatory factors, prothrombotic factors and profibrogenic molecules that can promote vascular and renal damage. Furthermore, communication or 'crosstalk' between affected organs or tissues in these diseases has the potential to further harm function and worsen patient outcomes, and increasing amounts of evidence point to a strong association between NAFLD and CKD. Whether a causal relationship between NAFLD and CKD exists remains to be definitively established.
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Affiliation(s)
- Giovanni Targher
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Piazzale Stefani 1, 37126 Verona, Italy
| | - Christopher D Byrne
- Nutrition and Metabolism, Faculty of Medicine, University of Southampton.,Southampton National Institute for Health Research Biomedical Research Centre, University Hospital Southampton, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK
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