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Pazarín-Villaseñor L, García-Salas Y, Yanowsky-Escatell FG, Pacheco-Moisés FP, Andrade-Sierra J, Campos-Bayardo TI, Román-Rojas D, García-Sánchez A, Miranda-Díaz AG. Oxidation State in Peritoneal Dialysis in Patients with Type 2 Diabetes Mellitus. Int J Mol Sci 2023; 24:ijms24032669. [PMID: 36768992 PMCID: PMC9916940 DOI: 10.3390/ijms24032669] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/12/2023] [Accepted: 01/17/2023] [Indexed: 02/01/2023] Open
Abstract
End-stage renal disease (ESRD) progression is closely related to oxidative stress (OS). The study objective was to determine the oxidant and antioxidant status in peritoneal dialysis (PD) patients with type 2 diabetes mellitus (DM). An analytical cross-sectional study from the PD program was carried out with 62 patients, 22 with and 40 without DM. Lipoperoxides (LPO) levels in patients with DM, 3.74 ± 1.09 mM/L, and without DM, 3.87 ± 0.84 mM/L were found to increase compared to healthy controls (HC) 3.05 ± 0.58 mM/L (p = 0.006). The levels of the oxidative DNA damage marker (8-OH-dG) were found to be significantly increased in patients with DM, 1.71 ng/mL (0.19-71.92) and without DM, 1.05 ng/mL (0.16-68.80) front to 0.15 ng/mL (0.15-0.1624) of HC (p = 0.001). The antioxidant enzyme superoxide dismutase (SOD) activity was found to be significantly increased in patients with DM, 0.37 ± 0.15 U/mL, and without DM, 0.37 ± 0.17 compared to HC, 0.23 ± 0.05 U/mL (p = 0.038). The activity of the enzyme glutathione peroxidase (GPx) showed a significant increase (p < 0.001) in patients with DM, 3.56 ± 2.18 nmol/min/mL, and without DM, 3.28 ± 1.46 nmol/min/mL, contrary to the activity obtained in HC, 1.55 ± 0.34 nmol/min/mL. In conclusion, we found an imbalance of oxidative status in patients undergoing PD with and without DM through the significant increase in LPO oxidants and the marker of oxidative damage in DNA. The activity of the antioxidant enzymes SOD and GPx were significantly increased in patients with and without DM undergoing PD, possibly in an attempt to compensate for the deregulation of oxidants. Antioxidant enzymes could be promising therapeutic strategies as a complement to the management of chronic kidney diseases.
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Affiliation(s)
- Leonardo Pazarín-Villaseñor
- Nephrology Service, Civil Hospital of Guadalajara “Dr. Juan I Menchaca”, Guadalajara 44280, Jalisco, Mexico
- Nephrology Specialty, Regional General Hospital No. 46 of the IMSS, Guadalajara 44910, Jalisco, Mexico
| | - Yessica García-Salas
- Nephrology Service, Civil Hospital of Guadalajara “Dr. Juan I Menchaca”, Guadalajara 44280, Jalisco, Mexico
| | - Francisco Gerardo Yanowsky-Escatell
- Nephrology Service, Civil Hospital of Guadalajara “Dr. Juan I Menchaca”, Guadalajara 44280, Jalisco, Mexico
- Department of Health Sciences-Illness as an Individual Process, University Center of Tonala, University of Guadalajara, Guadalajara 45425, Jalisco, Mexico
| | - Fermín Paul Pacheco-Moisés
- Department of Chemistry, University Centre for Exact and Engineering Sciences, University of Guadalajara, Guadalajara 44430, Jalisco, Mexico
| | - Jorge Andrade-Sierra
- Nephrology Service, Civil Hospital of Guadalajara “Dr. Juan I Menchaca”, Guadalajara 44280, Jalisco, Mexico
- Department of Physiology, University Center of Health Sciences, University of Guadalajara, Guadalajara 44360, Jalisco, Mexico
| | - Tannia Isabel Campos-Bayardo
- Department of Physiology, University Center of Health Sciences, University of Guadalajara, Guadalajara 44360, Jalisco, Mexico
| | - Daniel Román-Rojas
- Department of Physiology, University Center of Health Sciences, University of Guadalajara, Guadalajara 44360, Jalisco, Mexico
| | - Andrés García-Sánchez
- Department of Physiology, University Center of Health Sciences, University of Guadalajara, Guadalajara 44360, Jalisco, Mexico
| | - Alejandra Guillermina Miranda-Díaz
- Department of Physiology, University Center of Health Sciences, University of Guadalajara, Guadalajara 44360, Jalisco, Mexico
- Correspondence:
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Beak SH, Baik M. Comparison of transcriptome between high- and low-marbling fineness in longissimus thoracis muscle of Korean cattle. Anim Biosci 2021; 35:196-203. [PMID: 34293845 PMCID: PMC8738949 DOI: 10.5713/ab.21.0150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/11/2021] [Indexed: 11/27/2022] Open
Abstract
Objective This study compared differentially expressed genes (DEGs) between groups with high and low numbers of fine marbling particles (NFMP) in the longissimus thoracis muscle (LT) of Korean cattle to understand the molecular events associated with fine marbling particle formation. Methods The size and distribution of marbling particles in the LT were assessed with a computer image analysis method. Based on the NFMP, 10 LT samples were selected and assigned to either high- (n = 5) or low- (n = 5) NFMP groups. Using RNA sequencing, LT transcriptomic profiles were compared between the high- and low-NFMP groups. DEGs were selected at p<0.05 and |fold change| >2 and subjected to functional annotation. Results In total, 328 DEGs were identified, with 207 up-regulated and 121 down-regulated genes in the high-NFMP group. Pathway analysis of these DEGs revealed five significant (p<0.05) Kyoto encyclopedia of genes and genomes pathways; the significant terms included endocytosis (p = 0.023), protein processing in endoplasmic reticulum (p = 0.019), and adipocytokine signaling pathway (p = 0.024), which are thought to regulate adipocyte hypertrophy and hyperplasia. The expression of sirtuin4 (p<0.001) and insulin receptor substrate 2 (p = 0.043), which are associated with glucose uptake and adipocyte differentiation, was higher in the high-NFMP group than in the low-NFMP group. Conclusion Transcriptome differences between the high- and low-NFMP groups suggest that pathways regulating adipocyte hyperplasia and hypertrophy are involved in the marbling fineness of the LT.
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Affiliation(s)
- Seok-Hyeon Beak
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
| | - Myunggi Baik
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea.,Institue of Green Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
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Roumeliotis S, Dounousi E, Salmas M, Eleftheriadis T, Liakopoulos V. Unfavorable Effects of Peritoneal Dialysis Solutions on the Peritoneal Membrane: The Role of Oxidative Stress. Biomolecules 2020; 10:biom10050768. [PMID: 32423139 PMCID: PMC7277773 DOI: 10.3390/biom10050768] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 02/07/2023] Open
Abstract
One of the main limitations to successful long-term use of peritoneal dialysis (PD) as a renal replacement therapy is the harmful effects of PD solutions to the structure and function of the peritoneal membrane (PM). In PD, the PM serves as a semipermeable membrane that, due to exposure to PD solutions, undergoes structural alterations, including peritoneal fibrosis, vasculopathy, and neoangiogenesis. In recent decades, oxidative stress (OS) has emerged as a novel risk factor for mortality and cardiovascular disease in PD patients. Moreover, it has become evident that OS plays a pivotal role in the pathogenesis and development of the chronic, progressive injury of the PM. In this review, we aimed to present several aspects of OS in PD patients, including the pathophysiologic effects on the PM, clinical implications, and possible therapeutic antioxidant strategies that might protect the integrity of PM during PD therapy.
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Affiliation(s)
- Stefanos Roumeliotis
- Division of Nephrology and Hypertension, 1st Department of Internal Medicine, School of Medicine, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece;
| | - Evangelia Dounousi
- Department of Nephrology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece;
| | - Marios Salmas
- Department of Anatomy, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | | | - Vassilios Liakopoulos
- Division of Nephrology and Hypertension, 1st Department of Internal Medicine, School of Medicine, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece;
- Correspondence: ; Tel.: +30-2310-994-694
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Hsu BG, Chen TK, Pan YC, Wang CH, Hou JS. Low serum adiponectin level is associated with central arterial stiffness in patients undergoing peritoneal dialysis. Tzu Chi Med J 2020; 32:272-277. [PMID: 32955506 PMCID: PMC7485669 DOI: 10.4103/tcmj.tcmj_67_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/29/2019] [Accepted: 06/11/2019] [Indexed: 11/18/2022] Open
Abstract
Objective: Adiponectin has antidiabetic, anti-atherosclerotic, and anti-inflammatory functions and protects against vascular damage. Carotid-femoral pulse wave velocity (cfPWV) is a noninvasive method for measuring central artery stiffness, which is known to be associated with cardiovascular disease in peritoneal dialysis (PD) patients. This study was conducted to evaluate the relationship between central arterial stiffness and serum adiponectin levels in PD patients. Materials and Methods: Fasting blood samples were obtained from 60 PD patients, and the cfPWV value was measured using a validated tonometry system. In this study, cfPWV values of >10 m/s were used to define the high arterial stiffness group according to the European Society of Hypertension and the European Society of Cardiology guidelines. Results: Among 60 patients with PD, 19 patients (31.7%) were included in the high arterial stiffness group. When compared to those in the control group, the high arterial stiffness group patients were older (P = 0.029), had longer PD vintage (P = 0.001), higher diastolic blood pressures (P = 0.030), higher fasting glucose (P = 0.014), and lower serum adiponectin levels (P = 0.001). After multivariable logistic regression analysis, serum adiponectin (odds ratio, 0.612; 95% confidence interval: 0.426–0.879; P = 0.008) was identified as an independent predictor of arterial stiffness. The multivariable regression analysis also showed that the adiponectin level (β = −0.408; adjusted R2 change = 0.183; P < 0.001) was negatively associated with cfPWV values in patients undergoing PD. Conclusion: Low serum adiponectin level is an independent marker of arterial stiffness in patients undergoing PD.
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Dludla PV, Mazibuko-Mbeje SE, Nyambuya TM, Mxinwa V, Tiano L, Marcheggiani F, Cirilli I, Louw J, Nkambule BB. The beneficial effects of N-acetyl cysteine (NAC) against obesity associated complications: A systematic review of pre-clinical studies. Pharmacol Res 2019; 146:104332. [DOI: 10.1016/j.phrs.2019.104332] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/13/2019] [Accepted: 06/25/2019] [Indexed: 12/29/2022]
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Duan CY, Han J, Zhang CY, Wu K, Lin Y. UA promotes epithelial‑mesenchymal transition in peritoneal mesothelial cells. Mol Med Rep 2019; 20:2396-2402. [PMID: 31322227 DOI: 10.3892/mmr.2019.10476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 12/06/2018] [Indexed: 11/06/2022] Open
Abstract
Long‑term peritoneal dialysis is often limited or interrupted due to the development and progression of peritoneal fibrosis. Accumulating evidence suggests that epithelial‑mesenchymal transition (EMT) is a major component of peritoneal injury associated with peritoneal fibrosis in the end stage of renal disease; however, at present, the underlying mechanisms remain unclear. Thus, in the present study, uric acid (UA)‑induced EMT of peritoneal mesothelial cells was investigated by western‑blot and immunofluorescence staining. The results revealed that peritoneal mesothelial cells stimulated with UA underwent EMT, as demonstrated by the decreased expression of epithelial markers (E‑cadherin) and an increased expression of mesenchymal markers (α‑smooth muscle actin and vimentin). Additionally, it was reported that UA could facilitate the progression of EMT of peritoneal mesothelial cells via EMT transcription pathways, including transforming growth factor‑β1/mothers against decapentaplegic homolog 3 and P38/mitogen‑activated protein kinase by western‑blot and reverse transcription semi‑quantitative polymerase chain reaction. The results of the present study suggest that UA could promote EMT and may contribute to peritoneal chronic disease. Furthermore, the data obtained suggest that the levels of blood UA may account for the development of EMT; thus, lowering the levels of blood UA may be beneficial to inhibit the occurrence and development of peritoneal fibrosis.
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Affiliation(s)
- Chao-Yang Duan
- Department of Nephrology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Jin Han
- Department of Nephrology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Chong-Yu Zhang
- National and Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Kunyi Wu
- Core Research Laboratory, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Yan Lin
- Department of Endocrine and Metabolic Diseases, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
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Oxidative Stress in Patients Undergoing Peritoneal Dialysis: A Current Review of the Literature. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:3494867. [PMID: 29750088 PMCID: PMC5892210 DOI: 10.1155/2017/3494867] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 11/15/2017] [Accepted: 12/11/2017] [Indexed: 12/19/2022]
Abstract
Peritoneal dialysis (PD) patients manifest excessive oxidative stress (OS) compared to the general population and predialysis chronic kidney disease patients, mainly due to the composition of the PD solution (high-glucose content, low pH, elevated osmolality, increased lactate concentration and glucose degradation products). However, PD could be considered a more biocompatible form of dialysis compared to hemodialysis (HD), since several studies showed that the latter results in an excess accumulation of oxidative products and loss of antioxidants. OS in PD is tightly linked with chronic inflammation, atherogenesis, peritoneal fibrosis, and loss of residual renal function. Although exogenous supplementation of antioxidants, such as vitamins E and C, N-acetylcysteine, and carotenoids, in some cases showed potential beneficial effects in PD patients, relevant recommendations have not been yet adopted in everyday clinical practice.
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Fournie C, Pelletier S, Bacchetta J, Boutroy S, Confavreux C, Drai J, Arkouche W, Fouque D, Chapurlat R, Guebre-Egziabher F. The Relationship Between Body Composition and Bone Quality Measured with HR-pQCT in Peritoneal Dialysis Patients. ARCH ESP UROL 2017; 37:548-555. [PMID: 28765165 DOI: 10.3747/pdi.2016.00239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 05/09/2017] [Indexed: 11/15/2022]
Abstract
BACKGROUND Bone is known to be impaired in chronic kidney disease and dialysis patients. Recent studies have shown that body composition (fat mass and lean mass) may impact bone health. Some of these effects may be related to mediators that are secreted by adipose tissue. METHODS The aim of this study was to evaluate the association between body composition (dual x-ray absorptiometry [DEXA]) and adipokines (leptin, adiponectin), with bone density and microarchitecture assessed with high-resolution peripheral quantitative computed tomography (HR-pQCT) in chronic peritoneal dialysis (PD) patients in a single-center prospective study. RESULTS Twenty-three patients with a median age of 61 years and body mass index (BMI) of 27 kg/m2 were recruited. On univariate analysis, age was negatively associated with total volumetric bone mineral density (vBMD) (r = -0.75, p < 0.01), cortical vBMD (r = -0.85, p < 0.01), and cortical thickness (r = -0.71, p < 0.01). There was a negative association between leptin and cortical thickness (r = -0.48, p = 0.021). Fat mass (FM) was negatively correlated with cortical thickness (r = -0.52, p = 0.012). No association was found between bone parameters and dialysis duration, serum insulin, intact parathyroid hormone, osteocalcin, and adiponectin. The short dialysis vintage could in part explain the lack of correlation with bone parameters. In multivariate analysis, FM was significantly and negatively correlated with total vBMD, cortical and trabecular thickness. CONCLUSIONS These data suggest that FM is negatively associated with bone quality in PD patients, supporting a relation between body composition and bone that is independent from other dialysis-associated complications. The relative contribution of the different fat deposits (visceral versus subcutaneous) needs to be assessed in future studies.
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Affiliation(s)
| | - Solenne Pelletier
- Department of Nephrology, Lyon Sud Hospital, Hospices Civils de Lyon, Lyon, France.,INSERM UMR 1033, Lyon, France
| | - Justine Bacchetta
- INSERM UMR 1033, Lyon, France.,Centre de Référence des Maladies Rénales Rares, Women Mother and Children Hospital, Bron, Lyon, France.,Université de Lyon, Lyon, France
| | | | - Cyrille Confavreux
- INSERM UMR 1033, Lyon, France.,Université de Lyon, Lyon, France.,Department of Rheumatology, Hôpital Edouard Herriot, Lyon, France
| | - Jocelyne Drai
- Fédération de Biochimie, Unité de Biochimie Métabolique et Moléculaire, Centre Hospitalier Lyon-Sud, Lyon, France
| | - Walid Arkouche
- Association pour l'Utilisation du Rein Artificiel de la région Lyonnaise, Lyon, France
| | - Denis Fouque
- Department of Nephrology, Lyon Sud Hospital, Hospices Civils de Lyon, Lyon, France.,Université de Lyon, Lyon, France
| | - Roland Chapurlat
- Université de Lyon, Lyon, France.,Department of Rheumatology, Hôpital Edouard Herriot, Lyon, France
| | - Fitsum Guebre-Egziabher
- Department of Nephrology, Hôpital Edouard Herriot, Lyon, France.,Department of Nephrology, Dialysis, and Kidney Transplant, Centre Hospitalier Universitaire de Grenoble Alpes, La Tronche, France
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El Tabaa MM, Sokkar SS, Ramadan ES, Abd El Salam IZ, Zaid A. Neuroprotective role of Ginkgo biloba against cognitive deficits associated with Bisphenol A exposure: An animal model study. Neurochem Int 2017; 108:199-212. [DOI: 10.1016/j.neuint.2017.03.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 03/02/2017] [Accepted: 03/03/2017] [Indexed: 12/22/2022]
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10
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Rincón Bello A, Bucalo L, Abad Estébanez S, Vega Martínez A, Barraca Núñez D, Yuste Lozano C, Pérez de José A, López-Gómez JM. Fat tissue and inflammation in patients undergoing peritoneal dialysis. Clin Kidney J 2016; 9:374-80. [PMID: 27274820 PMCID: PMC4886903 DOI: 10.1093/ckj/sfw007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 01/19/2016] [Indexed: 01/10/2023] Open
Abstract
Background Body weight has been increasing in the general population and is an established risk factor for hypertension, diabetes, and all-cause and cardiovascular mortality. Patients undergoing peritoneal dialysis (PD) gain weight, mainly during the first months of treatment. The aim of this study was to assess the relationship between body composition and metabolic and inflammatory status in patients undergoing PD. Methods This was a prospective, non-interventional study of prevalent patients receiving PD. Body composition was studied every 3 months using bioelectrical impedance (BCM®). We performed linear regression for each patient, including all BCM® measurements, to calculate annual changes in body composition. Thirty-one patients in our PD unit met the inclusion criteria. Results Median follow-up was 26 (range 17–27) months. Mean increase in weight was 1.8 ± 2.8 kg/year. However, BCM® analysis revealed a mean increase in fat mass of 3.0 ± 3.2 kg/year with a loss of lean mass of 2.3 ± 4.1 kg/year during follow-up. The increase in fat mass was associated with the conicity index, suggesting that increases in fat mass are based mainly on abdominal adipose tissue. Changes in fat mass were directly associated with inflammation parameters such as C-reactive protein (r = 0.382, P = 0.045) and inversely associated with high-density lipoprotein cholesterol (r=−0.50, P = 0.008). Conclusions Follow-up of weight and body mass index can underestimate the fat mass increase and miss lean mass loss. The increase in fat mass is associated with proinflammatory state and alteration in lipid profile.
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Affiliation(s)
- Abraham Rincón Bello
- Department of Nephrology, Rey Juan Carlos Hospital, Móstoles, Madrid, Spain; Department of Nephrology, Gregorio Marañón Hospital, Madrid, Spain
| | - Laura Bucalo
- Department of Nephrology , Gregorio Marañón Hospital , Madrid , Spain
| | | | | | | | | | - Ana Pérez de José
- Department of Nephrology , Gregorio Marañón Hospital , Madrid , Spain
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Tung CW, Hsu YC, Shih YH, Lin CL. Association of Adiponectin with High-Sensitivity C-Reactive Protein and Clinical Outcomes in Peritoneal Dialysis Patients: A 3.5-Year Follow-Up Study. PLoS One 2015; 10:e0141058. [PMID: 26474473 PMCID: PMC4608701 DOI: 10.1371/journal.pone.0141058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 09/05/2015] [Indexed: 11/25/2022] Open
Abstract
Introduction Adiponectin (ADPN), one of most abundant fat-derived biologically active substances, plays an important role in anti-atherosclerotic process. There are conflicting results about the impact of ADPN on cardiovascular (CV) outcomes and mortality, particularly in patients undergoing peritoneal dialysis (PD). Moreover, the relationship between ADPN and inflammatory mediators has been seldom explored in this population. Therefore, we examined the relationship between ADPN and longitudinal high-sensitivity C-reactive protein (hs-CRP) changes and investigated whether ADPN or hs-CRP levels could predict CV outcomes and mortality in prevalent PD patients after comprehensive adjustment of possible confounders. Methods In this prospective cohort study, 78 PD patients were enrolled and followed from February 2009 to August 2012. During follow-up, CV events and all-cause mortality were recorded. Results The mean baseline ADPN value was 29.46±18.01 μg/ml and duration of PD treatment was 37.76±36.96 months. In multiple linear regression analysis, plasma ADPN levels positively correlated with high-density lipoprotein and negatively associated with hs-CRP, body mass index, D4/D0 glucose, triglyceride, and duration of PD treatment. After stratified by genders, the inverse association between baseline ADPN and hs-CRP was more significant in the female group. The hs-CRP levels were followed up annually and remained significantly lower in the high ADPN group in the first 2 years. Patients were then stratified into two groups according to the median ADPN value (23.8 μg/ml). The results of Kaplan-Meier survival analysis demonstrated less CV events and better survival in high ADPN group. On multivariate Cox regression analysis, only ADPN level (HR: 0.93, 95% CI: 0.88–0.98, p = 0.02), age and history of CV diseases were independent risk factors for future CV events. Furthermore, hs-CRP (HR: 1.11, 95% CI:1.001–1.22, p = 0.04) was identified as independent predictor of all-cause mortality. Conclusions Serum hs-CRP levels were consistently lower in the high ADPN group during 2-year follow-up. We also demonstrated the importance of ADPN and hs-CRP in predicting CV events and all-cause mortality in PD population during 3.5-year follow-up.
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Affiliation(s)
- Chun-Wu Tung
- Department of Nephrology, Chang Gung Memorial Hospital, Chiayi, Taiwan
- Graduate Institute of Clinical Medical Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Department of Kidney and Diabetic Complications Research Team (KDCRT), Chang Gung Memorial Hospital, Chiayi, Taiwan
- Chronic Kidney Disease Center, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Yung-Chien Hsu
- Department of Nephrology, Chang Gung Memorial Hospital, Chiayi, Taiwan
- Department of Kidney and Diabetic Complications Research Team (KDCRT), Chang Gung Memorial Hospital, Chiayi, Taiwan
- Chronic Kidney Disease Center, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Ya-Hsueh Shih
- Department of Nephrology, Chang Gung Memorial Hospital, Chiayi, Taiwan
- Department of Kidney and Diabetic Complications Research Team (KDCRT), Chang Gung Memorial Hospital, Chiayi, Taiwan
- Chronic Kidney Disease Center, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Chun-Liang Lin
- Department of Nephrology, Chang Gung Memorial Hospital, Chiayi, Taiwan
- Department of Kidney and Diabetic Complications Research Team (KDCRT), Chang Gung Memorial Hospital, Chiayi, Taiwan
- Chronic Kidney Disease Center, Chang Gung Memorial Hospital, Chiayi, Taiwan
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan, Republic of China
- * E-mail:
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Abstract
Adipose tissue is a complex, multicellular organ that profoundly influences the function of nearly all other organ systems through its diverse metabolite and adipokine secretome. Adipocytes are the primary cell type of adipose tissue and play a key role in maintaining energy homeostasis. The efficiency with which adipose tissue responds to whole-body energetic demands reflects the ability of adipocytes to adapt to an altered nutrient environment, and has profound systemic implications. Deciphering adipocyte cell biology is an important component of understanding how the aberrant physiology of expanding adipose tissue contributes to the metabolic dysregulation associated with obesity.
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Affiliation(s)
- Joseph M Rutkowski
- Touchstone Diabetes Center, Department of Internal Medicine, and Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Jennifer H Stern
- Touchstone Diabetes Center, Department of Internal Medicine, and Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Philipp E Scherer
- Touchstone Diabetes Center, Department of Internal Medicine, and Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390 Touchstone Diabetes Center, Department of Internal Medicine, and Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390
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13
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Xu H, Watanabe M, Qureshi AR, Heimbürger O, Bárány P, Anderstam B, Eriksson M, Stenvinkel P, Lindholm B. Oxidative DNA damage and mortality in hemodialysis and peritoneal dialysis patients. Perit Dial Int 2015; 35:206-15. [PMID: 24584621 PMCID: PMC4406316 DOI: 10.3747/pdi.2013.00259] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 01/02/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND AND AIMS Increased oxidative stress in dialysis patients is thought to contribute to increased mortality; however, confirmatory data are scarce. We analyzed the serum concentration of 8-hydroxy-2'-deoxyguanosine (8-OHdG), a marker of oxidative stress, in relation to mortality in hemodialysis (HD) and peritoneal dialysis (PD) patients. METHODS Serum 8-OHdG, interleukin 6 (IL-6), other biochemical markers, Davies comorbidity score, and protein-energy wasting (PEW) were assessed in 303 prevalent patients treated with HD (n = 220; age: 63 ± 14 years) or PD (n = 83; age: 64 ± 14 years). Mortality was assessed after a median follow-up of 31 months. RESULTS The median (25th - 75th percentile) concentration of 8-OHdG was higher in HD than in PD patients: 1.3 ng/mL (0.9 - 1.8 ng/mL) versus 0.5 ng/mL (0.4 - 0.6 ng/mL), p < 0.001. The HD modality (standard β = 0.57, p < 0.001) and dialysis vintage (standard β = 0.12, p = 0.02) were independent predictors of serum 8-OHdG in a multivariable linear regression model including age, sex, body mass index, dialysis modality (HD or PD), preceding time on dialysis (dialysis vintage), PEW, comorbidity score, IL-6, and use of angiotensin converting-enzyme inhibitors or angiotensin II receptor blockers or statins. During follow-up, 107 patients died. In multivariable Cox regression models including all 303 patients and adjusted for age, sex, body mass index, dialysis modality, dialysis vintage, and comorbidity score, 8-OHdG was significantly associated with all-cause mortality (adjusted hazard ratio: 1.40; 95% confidence limits: 1.05, 1.87 for 1 standard deviation increase of 8-OHdG). In subgroup analyses according to dialysis modality, 8-OHdG was associated with mortality in HD patients but not in PD patients. CONCLUSIONS Oxidative stress as assessed by 8-OHdG is an independent predictor of all-cause mortality in dialysis patients. This association was seen in HD patients, but no such association could be demonstrated for PD patients.
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Affiliation(s)
- Hong Xu
- Department of Clinical Science, Intervention and Technology, Divisions of Renal Medicine and Baxter Novum, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden Department of Nephrology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, PR China
| | - Makoto Watanabe
- Division of Nephrology, Department of Medicine, Showa University School of Medicine Tokyo, Tokyo, Japan
| | - Abdul Rashid Qureshi
- Department of Clinical Science, Intervention and Technology, Divisions of Renal Medicine and Baxter Novum, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Olof Heimbürger
- Department of Clinical Science, Intervention and Technology, Divisions of Renal Medicine and Baxter Novum, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Peter Bárány
- Department of Clinical Science, Intervention and Technology, Divisions of Renal Medicine and Baxter Novum, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Björn Anderstam
- Department of Clinical Science, Intervention and Technology, Divisions of Renal Medicine and Baxter Novum, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Monica Eriksson
- Department of Clinical Science, Intervention and Technology, Divisions of Renal Medicine and Baxter Novum, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Peter Stenvinkel
- Department of Clinical Science, Intervention and Technology, Divisions of Renal Medicine and Baxter Novum, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Bengt Lindholm
- Department of Clinical Science, Intervention and Technology, Divisions of Renal Medicine and Baxter Novum, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
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Park JT, Yoo TH, Kim JK, Oh HJ, Kim SJ, Yoo DE, Lee MJ, Shin DH, Han SH, Han DS, Kang SW. Leptin/adiponectin ratio is an independent predictor of mortality in nondiabetic peritoneal dialysis patients. Perit Dial Int 2012; 33:67-74. [PMID: 22855891 DOI: 10.3747/pdi.2011.00066] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The leptin/adiponectin (L/A) ratio has been suggested to be an atherosclerotic index for diabetic patients and a useful marker of insulin resistance in patients with and without diabetes. Even though end-stage renal disease (ESRD) patients on peritoneal dialysis (PD) are well characterized by abnormal adipocytokine metabolism, the significance of alterations in the L/A ratio is largely unexplored in these patients. In this prospective study, we investigated the associations of leptin, adiponectin, and the L/A ratio with clinical outcomes in nondiabetic PD patients. METHODS The study included 131 stable nondiabetic ESRD patients who had been on PD for more than 3 months. Serum leptin and adiponectin levels were determined at baseline. Mortality was evaluated over a 5-year follow-up period. RESULTS During the follow-up period, 22 patients died (16.8%), including 10 (45.5%) as a result of cardiovascular disease. The L/A ratio showed a significant positive correlation with body mass index [BMI (r = 0.47, p < 0.001)], high-sensitivity C-reactive protein (r = 0.32, p < 0.001), and triglycerides (r = 0.43, p < 0.001). In addition, we observed significant inverse correlations between the L/A ratio and percentage lean body mass (r = -0.30, p = 0.001) and high-density lipoprotein cholesterol (r = -0.31, p = 0.001). In contrast to individual leptin and adiponectin levels, the L/A ratio was found to be independently associated with an increased mortality risk (relative risk: 1.15; 95% confidence interval: 1.05 to 1.27; p = 0.003) even after adjustments for age and BMI. CONCLUSIONS The L/A ratio might be better related to patient outcomes than adipocytokines are individually in nondiabetic patients undergoing PD.
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Affiliation(s)
- Jung Tak Park
- Department of Internal Medicine, College of Medicine, Brain Korea 21 for Medical Science, Severance Biomedical Science Institute, Yonsei University, Seoul, Korea
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