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Rotella S, Gesualdo L, Fiorentino M. Heparin-Mediated Extracorporeal Low-Density Lipoprotein Precipitation Apheresis for Treating Peripheral Arterial Disease in Patients with Chronic Kidney Disease. J Clin Med 2024; 13:1121. [PMID: 38398435 PMCID: PMC10889472 DOI: 10.3390/jcm13041121] [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: 01/04/2024] [Revised: 02/01/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Patients with chronic kidney disease (CKD), particularly those with end-stage renal disease (ESRD), have a high prevalence of cardiovascular disease and peripheral arterial disease (PAD). Medical treatment is mainly based on risk factor management, and the surgical approach remains the gold standard treatment in specific conditions. Heparin-mediated extracorporeal low-density lipoprotein precipitation (H.E.L.P.) apheresis is effective in reducing circulating lipoprotein, fibrinogen, inflammatory mediators and procoagulant factors, thereby reducing cardiovascular risk in patients with familial hypercholesterolemia and hypertriglyceridemia. These activities may be effective in reducing symptoms and ischemic vascular lesions even in patients with severe PAD. We reported the application of a treatment protocol with H.E.L.P. apheresis in an ESRD patient with severe PAD without clinical improvement after severe revascularization who was not suitable for further surgical approaches, despite normal LDL cholesterol and lipoprotein (a). The H.E.L.P. protocol was characterized by an intensive first phase with weekly treatments followed by a single session every 10-15 days for 6 months of treatment. The overall clinical condition, foot lesions and walking distance improved significantly after the first 2 months of treatment, and foot amputation was avoided. Here, we review the main pathogenetic mechanisms through which LDL apheresis improves microcirculation and clinical outcomes. Its wider application may represent an optimal therapeutic option for patients unresponsive to standard treatment.
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Affiliation(s)
| | | | - Marco Fiorentino
- Nephrology, Dialysis and Transplantation Unit, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRE-J), University of Bari Aldo Moro, 70121 Bari, Italy; (S.R.); (L.G.)
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Tutan D, Ulfberg J, Aydemir N, Eser B, Doğan İ. The Relationship between Serum Selenium Levels and Restless Leg Syndrome in Chronic Kidney Disease Patients. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1795. [PMID: 37893513 PMCID: PMC10608171 DOI: 10.3390/medicina59101795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 09/26/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023]
Abstract
Background and Objectives: Chronic kidney disease (CKD) is a global public health issue with rising incidence linked to substantial morbidity and mortality. Selenium, an antioxidant trace element, has been linked to low serum levels in end-stage renal disease. Restless Leg Syndrome (RLS), a sleep disorder, is prevalent in CKD patients and significantly impacts their quality of life. The objective of this study was to examine the correlation between serum selenium levels and the prevalence of restless leg syndrome in individuals with chronic kidney disease. Materials and Methods: Forty-six CKD patients undergoing serum selenium level assessments between 1 January 2020 and 28 February 2022, at the Hitit University Faculty of Medicine Department of Nephrology Outpatient Clinic or Hemodialysis Unit, were included. Patients over 18 years of age with no history of hematological or oncological diseases or acute or chronic inflammatory conditions were included in the study groups. Patients taking selenium supplements were excluded. Demographic data, comorbidities, and laboratory values were collected, and RLS presence and severity were evaluated. Statistical analyses include descriptive statistics, correlation analysis, the Mann-Whitney U test, Student's t test, and Chi-square test. Results: Among the 46 patients, 16 (34.78%) had RLS symptoms. The patient group included 34.78% predialysis, 34.78% peritoneal dialysis, and 30.44% hemodialysis patients, with a median age of 47.98 years. There was no difference in age, gender, and Charlson comorbidity between patients with or without RLS (p = 0.881, p = 0.702, p = 0.650). RLS prevalence varied across CKD subgroups, with hemodialysis patients having a higher prevalence (p = 0.036). Clinical parameters such as blood urea nitrogen, creatinine, calcium, phosphorus, platelet counts, and parathyroid hormone levels exhibited significant differences between patients with and without RLS (p < 0.05). Serum selenium levels were not significantly different between patients with and without RLS (p = 0.327). Conclusions: With an increased comorbidity burden, CKD poses a significant healthcare challenge. When accompanied by RLS, this burden can be debilitating. The difference in CKD stages between groups has shed light on a critical determinant of RLS in this population, emphasizing the role of the chronic kidney disease stage. In our study, serum selenium levels were not associated with the presence and severity of RLS. However, prospective studies with larger numbers of participants are needed to draw a definitive conclusion.
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Affiliation(s)
- Duygu Tutan
- Department of Internal Medicine, Erol Olçok Training and Research Hospital, 19040 Çorum, Turkey
| | | | - Nihal Aydemir
- Department of Nephrology, Hitit University Faculty of Medicine, 19030 Çorum, Turkey; (N.A.); (B.E.); (İ.D.)
| | - Barış Eser
- Department of Nephrology, Hitit University Faculty of Medicine, 19030 Çorum, Turkey; (N.A.); (B.E.); (İ.D.)
| | - İbrahim Doğan
- Department of Nephrology, Hitit University Faculty of Medicine, 19030 Çorum, Turkey; (N.A.); (B.E.); (İ.D.)
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Tseng KF, Tsai PH, Wang JS, Chen FY, Shen MY. Sesamol Attenuates Renal Inflammation and Arrests Reactive-Oxygen-Species-Mediated IL-1β Secretion via the HO-1-Induced Inhibition of the IKKα/NFκB Pathway In Vivo and In Vitro. Antioxidants (Basel) 2022; 11:antiox11122461. [PMID: 36552668 PMCID: PMC9774643 DOI: 10.3390/antiox11122461] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/30/2022] [Accepted: 12/10/2022] [Indexed: 12/15/2022] Open
Abstract
Chronic nephritis leads to irreversible renal fibrosis, ultimately leading to chronic kidney disease (CKD) and death. Macrophage infiltration and interleukin 1β (IL-1β) upregulation are involved in inflammation-mediated renal fibrosis and CKD. Sesamol (SM), which is extracted from sesame seeds, has antioxidant and anti-inflammatory properties. We aimed to explore whether SM mitigates macrophage-mediated renal inflammation and its underlying mechanisms. ApoE-/- mice were subjected to 5/6 nephrectomy (5/6 Nx) with or without the oral gavage of SM for eight weeks. Blood and urine samples and all the kidney remnants were collected for analysis. Additionally, THP-1 cells were used to explore the mechanism through which SM attenuates renal inflammation. Compared with the sham group, the 5/6 Nx ApoE-/- mice exhibited a significant increase in the macrophage infiltration of the kidneys (nephritis), upregulation of IL-1β, generation of reactive oxygen species, reduced creatinine clearance, and renal fibrosis. However, the administration of SM significantly alleviated these effects. SM suppressed the H2O2-induced secretion of IL-1β from the THP-1 cells via the heme oxygenase-1-induced inhibition of the IKKα-NF-κB pathway. SM attenuated renal inflammation and arrested macrophage accumulation by inhibiting IKKα, revealing a novel mechanism of the therapeutic effects of SM on renal injury and offering a potential approach to CKD treatment.
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Affiliation(s)
- Kuo-Feng Tseng
- Department of Biological Science and Technology, China Medical University, Taichung 40406, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan
| | - Ping-Hsuan Tsai
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan
| | - Jie-Sian Wang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan
- Department of Internal Medicine, Division of Nephrology, China Medical University Hospital, Taichung 40402, Taiwan
| | - Fang-Yu Chen
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan
| | - Ming-Yi Shen
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung 40402, Taiwan
- Department of Nursing, Asia University, Taichung 41354, Taiwan
- Correspondence: or ; Tel.: +886-4-2205-3366 (ext. 5809)
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Anjos JS, Cardozo LF, Esgalhado M, Lindholm B, Stenvinkel P, Fouque D, Mafra D. Could Low-Protein Diet Modulate Nrf2 Pathway in Chronic Kidney Disease? J Ren Nutr 2018; 28:229-234. [DOI: 10.1053/j.jrn.2017.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 10/25/2017] [Accepted: 11/19/2017] [Indexed: 12/21/2022] Open
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Kimak E, Baranowicz-Gaszczyk I, Bialopiotrowicz T. Moderate dyslipoproteinemia induced inflammation and remodeling HDL and VLDL particles in post-renal transplant patients. CURRENT ISSUES IN PHARMACY AND MEDICAL SCIENCES 2017. [DOI: 10.1515/cipms-2017-0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
The aim of this paper was to examine whether moderate dyslipoproteinemia can cause an increase of hsCRP and LPO levels in Tx patients who had received immunosuppressive therapy and were without acute inflammatory diseases. Herein, the lipid levels, hsCRP, LPO, apolipoprotein (apo)B, AI, AII, AIInonB, apoB-containing AII (apoB:AII), apoCIII, apoCIIInonB, apoB:CIII, LCAT level, as well as CETP and PON1 activity were determined. All examined Tx patients had moderate dyslipidemia and slightly increased hsCRP, LPO, apoB:AII and apoCIII levels, but decreased LCAT mass, PON1 activity and lipoprotein ratios. Tx patients with apoAI<150 mg/dl (n=28) had worse lipoprotein profiles than did Tx patients with apoAI>150mg/dl (n=39), but no difference in CETP activity was indicated. Multiple ridge forward regression and Spearman’s correlation test were used. The results of the presented study, show for the first time that higher apoAI/apoB and apoAI/apoCIII ratios induced a decrease of the hsCRP concentration. Moreover, the composition of apoCIIInonB, LDL-C and apoAI brought about an increase of LCAT mass and PON1 activity. In Tx patients with lower concentration of apoAI, an increase of concentration of apoB:AII in VLDL generated a mild oxidation of lipoprotein and an elevated concentration of LPO. However, lower ApoAI/apoB ratio resulted in an increase of PON1 activity and apoB, as well as nonHDL-C levels, and in turn, PON1 activity increased LCAT mass. These disorders rearranged the HDL particle, and, simultaneously, remodeled the VLDL particle. This may prevent antioxidant activity, reverse cholesterol transport and accelerate the rejection of the transplant, as well as bringing about cardiovascular diseases in Tx patients with lower apoAI. Such metabolic pathways can be used as potentially novel targets for pharmacological intervention.
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Affiliation(s)
- Elzbieta Kimak
- Department of Laboratory Diagnostics, Medical University, Lublin , Poland
| | | | - Tomasz Bialopiotrowicz
- Department of Physical Chemistry and Physicochemical Basis of Environmental Engineering, Institute of Environmental Engineering, John Paul II Catholic University of Lublin, Stalowa Wola , Poland
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Li H, Han Y, Qi R, Wang Y, Zhang X, Yu M, Tang Y, Wang M, Shu YN, Huang W, Liu X, Rodrigues B, Han M, Liu G. Aggravated restenosis and atherogenesis in ApoCIII transgenic mice but lack of protection in ApoCIII knockouts: the effect of authentic triglyceride-rich lipoproteins with and without ApoCIII. Cardiovasc Res 2015; 107:579-89. [PMID: 26160324 DOI: 10.1093/cvr/cvv192] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 06/30/2015] [Indexed: 11/13/2022] Open
Abstract
AIM Previously, our group and others have demonstrated a causative relationship between severe hypertriglyceridaemia and atherogenesis in mice. Furthermore, clinical investigations have shown high levels of plasma Apolipoprotein C-III (ApoCIII) associated with hypertriglyceridaemia and even cardiovascular disease. However, it remains unclear whether ApoCIII affects restenosis in vivo, and whether such an effect is mediated by ApoCIII alone, or in combination with hypertriglyceridaemia. We sought to investigate ApoCIII in restenosis and clarify how smooth muscle cells (SMCs) respond to authentic triglyceride-rich lipoproteins (TRLs) with or without ApoCIII (TRLs ± ApoCIII). METHODS AND RESULTS ApoCIII transgenic (ApoCIIItg) and knockout (ApoCIII-/-) mice underwent endothelial denudation to model restenosis. Here, ApoCIIItg mice displayed severe hypertriglyceridaemia and increased neointimal formation compared with wild-type (WT) or ApoCIII-/- mice. Furthermore, increased proliferating cell nuclear antigen (PCNA)-positive cells, Mac-3, and vascular cell adhesion protein-1 (VCAM-1) expression, and 4-hydroxynonenal (4HNE) production were found in lesion sites. ApoCIIItg and ApoCIII-/- mice were then crossed to low-density lipoprotein receptor-deficient (Ldlr-/-) mice and fed an atherogenic diet. ApoCIIItg/Ldlr-/- mice had significantly increased atherosclerotic lesions. However, there was no statistical difference in restenosis between ApoCIII-/- and WT mice, and in atherosclerosis between ApoCIII/Ldlr double knockout and Ldlr-/- mice. SMCs were then incubated in vitro with authentic TRLs ± ApoCIII isolated from extreme hypertriglyceridaemia glycosylphosphatidylinositol-anchored high-density lipoprotein-binding protein 1-deficient (GPIHBP1-/-) mice crossed with ApoCIIItg or ApoCIII-/- mice. It was shown that TRLs + ApoCIII promoted SMC proliferation, VCAM-1 expression, and reactive oxygen species (ROS) production, and activated the Akt pathway. Scavenging ROS significantly reduced SMC activation caused by TRLs + ApoCIII. CONCLUSIONS Severe hypertriglyceridaemia resulting from ApoCIII overexpression promotes restenosis and atherosclerosis. Furthermore, we demonstrated that TRLs + ApoCIII promotes SMC proliferation.
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Affiliation(s)
- Haibo Li
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University Health Science Center, Beijing 100191, China
| | - Yingchun Han
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University Health Science Center, Beijing 100191, China
| | - Rong Qi
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University Health Science Center, Beijing 100191, China
| | - Yuhui Wang
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University Health Science Center, Beijing 100191, China
| | - Xiaohong Zhang
- Department of Laboratory Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Maomao Yu
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University Health Science Center, Beijing 100191, China
| | - Yin Tang
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University Health Science Center, Beijing 100191, China
| | - Mengyu Wang
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University Health Science Center, Beijing 100191, China
| | - Ya-Nan Shu
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, No. 361, Zhongshan East Rd, Shijiazhuang 050017, China
| | - Wei Huang
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University Health Science Center, Beijing 100191, China
| | - Xinfeng Liu
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Brian Rodrigues
- Faculty of Pharmaceutical Sciences, The University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC, Canada V6T 1Z3
| | - Mei Han
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, No. 361, Zhongshan East Rd, Shijiazhuang 050017, China
| | - George Liu
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University Health Science Center, Beijing 100191, China
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Stefanidis I, Voliotis G, Papanikolaou V, Chronopoulou I, Eleftheriadis T, Kowald A, Zintzaras E, Tsezou A. Telomere Length in Peripheral Blood Mononuclear Cells of Patients on Chronic Hemodialysis Is Related With Telomerase Activity and Treatment Duration. Artif Organs 2015; 39:756-64. [DOI: 10.1111/aor.12453] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | | | - Vassilios Papanikolaou
- Laboratory of Cytogenetics and Molecular Genetics; University of Thessaly; Larissa Greece
- Laboratory of Medical Genetics; Center of Research and Technology Thessaly; Larissa Greece
| | | | | | - Axel Kowald
- Centre for Integrated Systems Biology of Ageing and Nutrition; Institute for Ageing and Health; Newcastle University; Newcastle UK
| | - Elias Zintzaras
- Laboratory of Biometry and Biomathematics; Faculty of Medicine; University of Thessaly; Larissa Greece
- Institute for Clinical Research and Health Policy Studies; Tufts University School of Medicine; Boston MA USA
| | - Aspasia Tsezou
- Laboratory of Cytogenetics and Molecular Genetics; University of Thessaly; Larissa Greece
- Laboratory of Medical Genetics; Center of Research and Technology Thessaly; Larissa Greece
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Oxidative stress in kidney transplantation: malondialdehyde is an early predictive marker of graft dysfunction. Transplantation 2014; 97:1058-65. [PMID: 24406454 DOI: 10.1097/01.tp.0000438626.91095.50] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Oxidative stress is one of the most important components of the ischemia-reperfusion process after kidney transplantation (KTx) and increases with graft dysfunction. METHODS This prospective study was conducted on 40 consecutive KTx recipients to evaluate time-dependent changes in oxidative stress-related parameters within the first week after KTx and to assess their performance in predicting delayed graft function (DGF=dialysis requirement during initial posttransplant week) and graft function at 1 year. Blood samples were collected before (day 0) and after KTx (days 1, 2, 4, and 7). Total antioxidant capacity, plasma levels of malondialdehyde (MDA), and activities of glutathione peroxidase, glutathione reductase and superoxide dismutase were measured. Multivariable linear mixed and linear regression models, receiver-operating characteristic (ROC), and areas under ROC curves (AUC-ROC) were used. RESULTS At all time points after KTx, mean MDA levels were significantly higher in patients developing DGF (n=18). Shortly after KTx (8-12 hr), MDA values were higher in DGF recipients (on average, +0.16 μmol/L) and increased further on following day, contrasting with prompt functioning recipients. Day 1 MDA levels accurately predicted DGF (AUC-ROC=0.90), with a performance higher than SCr (AUC-ROC=0.73) and similar to cystatin C (AUC-ROC=0.91). Multivariable analysis revealed that MDA levels on day 7 represented an independent predictor of 1-year graft function. Antioxidant enzyme activities were not significantly changed during the study period and were not predictors of 1-year graft function. CONCLUSIONS Increased MDA levels on day 1 after KTx might be an early prognostic indicator of DGF, and levels on day 7 might represent a useful predictor of 1-year graft function.
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The increasing financial impact of chronic kidney disease in australia. Int J Nephrol 2014; 2014:120537. [PMID: 24800075 PMCID: PMC3995178 DOI: 10.1155/2014/120537] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 03/06/2014] [Indexed: 01/17/2023] Open
Abstract
The aim of this investigation was to determine and compare current and projected expenditure associated with chronic kidney disease (CKD), renal replacement therapy (RRT), and cardiovascular disease (CVD) in Australia. Data published by Australia and New Zealand Dialysis and Transplant Registry, Australian Institute of Health and Welfare, and World Bank were used to compare CKD-, RRT-, and CVD-related expenditure and prevalence rates. Prevalence and expenditure predictions were made using a linear regression model. Direct statistical comparisons of rates of annual increase utilised indicator variables in combined regressions. Statistical significance was set at P < 0.05. Dollar amounts were adjusted for inflation prior to analysis. Between 2012 and 2020, prevalence, per-patient expenditure, and total disease expenditure associated with CKD and RRT are estimated to increase significantly more rapidly than CVD. RRT prevalence is estimated to increase by 29%, compared to 7% in CVD. Average annual RRT per-patient expenditure is estimated to increase by 16%, compared to 8% in CVD. Total CKD- and RRT-related expenditure had been estimated to increase by 37%, compared to 14% in CVD. Per-patient, CKD produces a considerably greater financial impact on Australia's healthcare system, compared to CVD. Research focusing on novel preventative/therapeutic interventions is warranted.
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Tucker PS, Dalbo VJ, Han T, Kingsley MI. Clinical and research markers of oxidative stress in chronic kidney disease. Biomarkers 2013; 18:103-15. [PMID: 23339563 DOI: 10.3109/1354750x.2012.749302] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
CONTEXT Kidney-related pathologies have increasing prevalence rates, produce a considerable financial burden, and are characterized by elevated levels of oxidative stress (OS). OBJECTIVE This review examines relationships between chronic kidney disease (CKD) and markers of OS and antioxidant status (AS). METHODS A systematic review of MEDLINE-indexed clinical trials, randomized controlled trials and comparative studies that examined OS and AS was performed. RESULTS AND CONCLUSION Several markers emerged as well-suited indicators of OS and AS in CKD: malondialdehyde, F2-isoprostanes, lipid hydroperoxides, asymmetric dimethylarginine, 8-oxo-7,8-dihydro-2'-deoxyguanosine, protein carbonyls, advanced oxidation protein products and glutathione-related activity.
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Affiliation(s)
- Patrick Steven Tucker
- Clinical Biochemistry Laboratory, Institute for Health and Social Science Research, Central Queensland University, Rockhampton, QLD, Australia
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11
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Leurs P, Lindholm B, Stenvinkel P. Effects of Hemodiafiltration on Uremic Inflammation. Blood Purif 2013; 35 Suppl 1:11-7. [DOI: 10.1159/000346359] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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12
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Souto EB, Severino P, Basso R, Santana MHA. Encapsulation of antioxidants in gastrointestinal-resistant nanoparticulate carriers. Methods Mol Biol 2013; 1028:37-46. [PMID: 23740112 DOI: 10.1007/978-1-62703-475-3_3] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Reactive oxygen species (ROS) are known to cause several human pathologies. For this reason, antioxidants have gained utmost importance because of their potential as prophylactic and therapeutic agents in many diseases. Examples of their application include their use in diabetic patients, as aging drugs, in cancer diseases, Parkinson's, Alzheimer's, autoimmune disorders, and also in inflammation. Antioxidants have limited absorption profiles, therefore low bioavailability and low concentrations at the target site. Efforts have been done towards loading antioxidant molecules in advanced nanoparticulate carriers, e.g., liposomes, polymeric nanoparticles, solid lipid nanoparticles, self-emulsifying drug delivery system. Examples of -successful achievements include the encapsulation of drugs and other active ingredients, e.g., coenzyme Q10, vitamin E and vitamin A, resveratrol and polyphenols, curcumin, lycopene, silymarin, and superoxide dismutase. This review focuses on the comprehensive analysis of using nanoparticulate carriers for loading these molecules for oral administration.
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Affiliation(s)
- Eliana B Souto
- Faculty of Health Sciences, Centre of Genetics and Biotechnology, Institute of Biotechnology and Bioengineering, Fernando Pessoa University, Porto, Portugal
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Tamura K, Tsurumi-Ikeya Y, Wakui H, Maeda A, Ohsawa M, Azushima K, Kanaoka T, Uneda K, Haku S, Azuma K, Mitsuhashi H, Tamura N, Toya Y, Tokita Y, Kokuho T, Umemura S. Therapeutic Potential of Low-Density Lipoprotein Apheresis in the Management of Peripheral Artery Disease in Patients With Chronic Kidney Disease. Ther Apher Dial 2012; 17:185-92. [DOI: 10.1111/j.1744-9987.2012.01149.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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14
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Zoladz JA, Śmigielski M, Majerczak J, Nowak ŁR, Zapart-Bukowska J, Smoleński O, Kulpa J, Duda K, Drzewińska J, Bartosz G. Hemodialysis decreases serum brain-derived neurotrophic factor concentration in humans. Neurochem Res 2012; 37:2715-24. [PMID: 22903469 DOI: 10.1007/s11064-012-0862-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 07/27/2012] [Accepted: 07/30/2012] [Indexed: 02/08/2023]
Abstract
In the present study we have evaluated the effect of a single hemodialysis session on the brain-derived neurotrophic factor levels in plasma [BDNF](pl) and in serum [BDNF](s) as well as on the plasma isoprostanes concentration [F(2) isoprostanes](pl), plasma total antioxidant capacity (TAC) and plasma cortisol levels in chronic kidney disease patients. Twenty male patients (age 69.8 ± 2.9 years (mean ± SE)) with end-stage renal disease undergoing maintenance hemodialysis on regular dialysis treatment for 15-71 months participated in this study. A single hemodialysis session, lasting 4.2 ± 0.1 h, resulted in a decrease (P = 0.014) in [BDNF](s) by ~42 % (2,574 ± 322 vs. 1,492 ± 327 pg ml(-1)). This was accompanied by an increase (P < 10(-4)) of [F(2)-Isoprostanes](pl) (38 ± 3 vs. 116 ± 16 pg ml(-1)), decrease (P < 10(-4)) in TAC (1,483 ± 41 vs. 983 ± 35 trolox equivalents, μmol l(-1)) and a decrease (P = 0.004) in plasma cortisol level (449.5 ± 101.2 vs. 315.3 ± 196.3 nmol l(-1)). No changes (P > 0.05) in [BDNF](pl) and the platelets count were observed after a single dialysis session. Furthermore, basal [BDNF](s) in the chronic kidney disease patients was significantly lower (P = 0.03) when compared to the age-matched control group (n = 23). We have concluded that the observed decrease in serum BDNF level after hemodialysis accompanied by elevated [F(2)-Isoprostanes](pl) and decreased plasma TAC might be caused by enhanced oxidative stress induced by hemodialysis.
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Affiliation(s)
- Jerzy A Zoladz
- Department of Physiology and Biochemistry, Faculty of Rehabilitation, University School of Physical Education Kraków, al. Jana Pawla II 78, 31-571 Kraków, Poland.
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Dołęgowska B, Błogowski W, Domański L. Association between the perioperative antioxidative ability of platelets and early post-transplant function of kidney allografts: a pilot study. PLoS One 2012; 7:e29779. [PMID: 22279544 PMCID: PMC3261166 DOI: 10.1371/journal.pone.0029779] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Accepted: 12/04/2011] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Recent studies have demonstrated that the actions of platelets may unfavorably influence post-transplant function of organ allografts. In this study, the association between post-transplant graft function and the perioperative activity of platelet antioxidants was examined among kidney recipients divided into early (EGF), slow (SGF), and delayed graft function (DGF) groups. METHODOLOGY/PRINCIPAL FINDINGS Activities of superoxide dismutase, catalase, glutathione transferase (GST), glutathione peroxidase, and glucose-6-phosphate dehydrogenase (G6P) were determined and levels of glutathione, oxidized glutathione, and isoprostane were measured in blood samples collected immediately before and during the first and fifth minutes of renal allograft reperfusion. Our results demonstrated a significant increase in isoprostane levels in all groups. Interestingly, in DGF patients, significantly lower levels of perioperative activity of catalase (p<0.02) and GST (p<0.02) were observed. Moreover, in our study, the activity of platelet antioxidants was associated with intensity of perioperative oxidative stress. For discriminating SGF/DGF from EGF, sensitivity, specificity, and positive and negative predictive values of platelet antioxidants were 81-91%, 50-58%, 32-37%, and 90-90.5%, respectively. CONCLUSIONS During renal transplantation, significant changes occur in the activity of platelet antioxidants. These changes seem to be associated with post-transplant graft function and can be potentially used to differentiate between EGF and SGF/DGF. To the best of our knowledge, this is the first study to reveal the potential protective role of platelets in the human transplantation setting.
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Affiliation(s)
- Barbara Dołęgowska
- Department of Laboratory Diagnostics and Molecular Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Wojciech Błogowski
- Department of Laboratory Diagnostics and Molecular Medicine, Pomeranian Medical University, Szczecin, Poland
- * E-mail:
| | - Leszek Domański
- Department of Nephrology, Transplantation and Internal Medicine, Pomeranian Medical University, Szczecin, Poland
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Abstract
Dialysis-related amyloidosis (DRA) is a clinical syndrome of pain, loss of function and other symptoms due to the deposition of amyloid consisting of β(2)-microglobulin (β(2)m) in the musculoskeletal system. The condition is seen in patients who suffer from chronic kidney disease and are treated with hemodialysis for a long time. Even though β(2)m easily can be manipulated to form amyloid in laboratory experiments under non-physiological conditions the precise mechanisms involved in the formation of β(2)m-amyloid in patients with DRA have been difficult to unravel. The current knowledge which is reviewed here indicates that conformational fluctuations centered around the D-strand, the DE-loop, and around the cis-configured Pro32 peptide bond are involved in β(2)m amyloidosis. Also required are highly increased concentrations of circulating β(2)m and possibly various post-translational modifications mediated by the pro-inflammatory environment in uremic blood, together with the influence of divalent metal ions (specifically Cu(2 +)), uremic toxins, and dialysis-enhanced redox-processes. It seems plausible that domain-swapped β(2)m dimers act as building blocks of β-spine cross-β -sheet fibrils consisting of otherwise globular, roughly natively folded protein. An activated complement system and cellular activation perpetuate these reactions which due to the affinity of β(2)m-amyloid for the collagen of synovial surfaces result in the DRA syndrome.
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Affiliation(s)
- Dorthe B Corlin
- Department of Clinical Biochemistry and Immunology, Division of Microbiology and Diagnostics, Statens Serum Institut, Bldg. 85/240, Artillerivej 5, 2300, Copenhagen S, Denmark,
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