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Oktan MA, Korucu B, Çolak A, Bildacı YD, Çavdar C, Değer SM. The relationship between changes in peritoneal membrane solute transfer characteristics and cardiac remodeling in patients with peritoneal dialysis. Ther Apher Dial 2024. [PMID: 38837848 DOI: 10.1111/1744-9987.14170] [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: 02/12/2024] [Revised: 04/20/2024] [Accepted: 05/15/2024] [Indexed: 06/07/2024]
Abstract
INTRODUCTION We aimed to determine the relationship between the dilatation of the heart chambers and the change in peritoneal membrane solute transfer characteristics (PMTC) in long-term peritoneal dialysis (PD) patients. METHODS This is a retrospective, single-center study including the follow-up of maintenance PD patients. According to the changes in PMTC from baseline to the last visit, patients were divided into three groups; stable (n = 11), increased (n = 41), and decreased transporters (n = 35). RESULTS Left atrium (LA) and Right ventricle (RV) dilatation were more prominent in the PMTC-decreased group compared to PMTC-increased and stable groups (p < 0.001 and p = 0.07, respectively). The Cox regression analysis showed that only decreased PMTC was associated with LA dilatation (HR 2.89 [CI 95%1.54, 5.45] p < 0.01) and RV dilatation (HR 3.01 [CI 95%1.40, 6.21] p < 0.01). CONCLUSION PD can be associated with unfavorable dynamic changes in cardiac structure and functions even at the subclinical level.
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Affiliation(s)
- Mehmet Ası Oktan
- Dokuz Eylul University Faculty of Medicine, Department of Internal Medicine, Division of Nephrology, Izmir, Turkey
| | - Berfu Korucu
- Dokuz Eylul University Faculty of Medicine, Department of Internal Medicine, Division of Nephrology, Izmir, Turkey
| | - Ayşe Çolak
- Department of Cardiology, Dokuz Eylül University School of Medicine, Izmir, Turkey
| | - Yelda Deligöz Bildacı
- Dokuz Eylul University Faculty of Medicine, Department of Internal Medicine, Division of Nephrology, Izmir, Turkey
| | - Caner Çavdar
- Dokuz Eylul University Faculty of Medicine, Department of Internal Medicine, Division of Nephrology, Izmir, Turkey
| | - Serpil Müge Değer
- Dokuz Eylul University Faculty of Medicine, Department of Internal Medicine, Division of Nephrology, Izmir, Turkey
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Huang G, Wang Y, Shi Y, Ma X, Tao M, Zang X, Qi Y, Qiao C, Du L, Sheng L, Zhuang S, Liu N. The prognosis and risk factors of baseline high peritoneal transporters on patients with peritoneal dialysis. J Cell Mol Med 2021; 25:8628-8644. [PMID: 34309202 PMCID: PMC8435427 DOI: 10.1111/jcmm.16819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/09/2021] [Accepted: 07/13/2021] [Indexed: 11/30/2022] Open
Abstract
The relationship between baseline high peritoneal solute transport rate (PSTR) and the prognosis of peritoneal dialysis (PD) patients remains unclear. The present study combined clinical data and basic experiments to investigate the impact of baseline PSTR and the underlying molecular mechanisms. A total of 204 incident CAPD patients from four PD centres in Shanghai between 1 January 2014 and 30 September 2020 were grouped based on a peritoneal equilibration test after the first month of dialysis. Analysed with multivariate Cox and logistic regression models, baseline high PSTR was a significant risk factor for technique failure (AHR 5.70; 95% CI 1.581 to 20.548 p = 0.008). Baseline hyperuricemia was an independent predictor of mortality (AHR 1.006 95%CI 1.003 to 1.008, p < 0.001) and baseline high PSTR (AOR 1.007; 95%CI 1.003 to 1.012; p = 0.020). Since uric acid was closely related to high PSTR and adverse prognosis, the in vitro experiments were performed to explore the underlying mechanisms of which uric acid affected peritoneum. We found hyperuricemia induced epithelial‐to‐mesenchymal transition (EMT) of cultured human peritoneal mesothelial cells by activating TGF‐β1/Smad3 signalling pathway and nuclear transcription factors. Conclusively, high baseline PSTR induced by hyperuricaemia through EMT was an important reason of poor outcomes in CAPD patients.
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Affiliation(s)
- Guansen Huang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Wang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yingfeng Shi
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaoyan Ma
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Min Tao
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiujuan Zang
- Department of Nephrology, Shanghai Songjiang District Central Hospital, Shanghai, China
| | - Yinghui Qi
- Department of Nephrology, Shanghai Punan Hospital, Shanghai, China
| | - Cheng Qiao
- Department of Nephrology, Shanghai Punan Hospital, Shanghai, China
| | - Lin Du
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lili Sheng
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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Gutiérrez-Prieto JA, Soto-Vargas J, Parra-Michel R, Pazarín-Villaseñor HL, García-Sánchez A, Miranda-Díaz AG. The Behavior of the Type of Peritoneal Transport in the Inflammatory and Oxidative Status in Adults Under Peritoneal Dialysis. Front Med (Lausanne) 2019; 6:210. [PMID: 31612137 PMCID: PMC6776606 DOI: 10.3389/fmed.2019.00210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 09/10/2019] [Indexed: 01/08/2023] Open
Abstract
Peritoneal dialysis (PD) is an alternative for managing the end-stage renal disease (ESRD). The peritoneal membrane (PM) is not just a membrane that passively responds to diffusion and convection. The characteristics of PM result in the peritoneal equilibrium test (PET) and with this test is possible to obtain the type of peritoneal transport (PT). The patient on PD can be classified in different types of PT as; Low, Low Average, High Average, and High. The aim of the study was to compare the inflammatory cytokines, oxidants, antioxidants, and oxidative DNA damage markers in the different types of PT. A cross-sectional analytical study of 77 adult PD patients was performed. Levels of lipoperoxides (LPO) were higher in all types of PT vs. healthy volunteer controls (HC) (p < 0.0001). Nitric oxide (NO) levels were found significantly down-regulated in all types of PT (p < 0.0001). The activity of the superoxide dismutase enzyme (SOD) was found to be significantly increased in all types of PT vs. the HC (p < 0.0001). The levels of the DNA repair enzyme were found to be decreased in all types of PT. The levels of the pro-inflammatory cytokines TNF-α, IL-6, the marker of oxidative DNA damage, 8-IP and the total antioxidant capacity (TAC) were all significantly decreased, contrary to the levels in HC, possibly by the clearance in the dialysis fluid in all types of PT or due to down-regulation of their expression. In conclusion, we found significant changes in markers of inflammation, oxidative stress, and oxidative damage to DNA in all types of PT; Low, low average, high average, and high PT in the values of D/P creatinine at 4 h compared to HC.
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Affiliation(s)
| | - Javier Soto-Vargas
- Servicio de Nefrología, Hospital General Regional No. 46, Instituto Mexicano del Seguro Social, Guadalajara, Mexico
| | - Renato Parra-Michel
- Servicio de Nefrología, Hospital General Regional No. 46, Instituto Mexicano del Seguro Social, Guadalajara, Mexico
| | - Héctor Leonardo Pazarín-Villaseñor
- Servicio de Nefrología, Hospital General Regional No. 46, Instituto Mexicano del Seguro Social, Guadalajara, Mexico.,Instituto de Terapéutica Experimental y Clínica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - Andrés García-Sánchez
- Instituto de Terapéutica Experimental y Clínica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - Alejandra Guillermina Miranda-Díaz
- Instituto de Terapéutica Experimental y Clínica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
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Guan JC, Bian W, Zhang XH, Shou ZF, Chen JH. Influence of peritoneal transport characteristics on nutritional status and clinical outcome in Chinese diabetic nephropathy patients on peritoneal dialysis. Chin Med J (Engl) 2015; 128:859-64. [PMID: 25836603 PMCID: PMC4833999 DOI: 10.4103/0366-6999.154275] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Background: High peritoneal transport status was previously thought to be a poor prognostic factor in peritoneal dialysis (PD) patients. However, its effect on diabetic nephropathy PD patients is unclear in consideration of the adverse impact of diabetes itself. The purpose of this study was to investigate the influence of peritoneal transport characteristics on nutritional status and clinical outcome in diabetic nephropathy patients on PD. Methods: One hundred and two diabetic nephropathy patients on PD were enrolled in this observational cohort study. According to the initial peritoneal equilibration test result, patients were divided into two groups: Higher transport group (HT, including high and high average transport) and lower transport group (LT, including low and low-average transport). Demographic characteristics, biochemical data, dialysis adequacy, and nutritional status were evaluated. Clinical outcomes were compared. Risk factors for death-censored technique failure and mortality were analyzed. Results: Compared with LT group (n = 37), serum albumin was significantly lower and the incidence of malnutrition by subjective global assessment was significantly higher in HT group (n = 65) (P < 0.05). Kaplan–Meier analyses showed that death-censored technique failure and mortality were significantly increased in HT group compared with that in LT group. On multivariate Cox analyses, higher peritoneal transport status and lower residual renal function (RRF) were independent predictors of death-censored technique failure when adjusted for serum albumin and total weekly urea clearance (Kt/V). Independent predictors of mortality were advanced age, anemia, hypoalbuminemia, and lower RRF, but not higher peritoneal transport status. Conclusions: Higher peritoneal transport status has an adverse influence on nutrition for diabetic nephropathy patients on PD. Higher peritoneal transport status is a significant independent risk factor for death-censored technique failure, but not for mortality in diabetic nephropathy patients on PD.
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Affiliation(s)
| | | | | | - Zhang-Fei Shou
- Kidney Disease Center, First Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, Zhejiang 310003, China
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Chen KH, Chen CY, Lee CC, Weng CM, Hung CC. Baseline hyponatremia does not predict two-year mortality in patients with chronic peritoneal dialysis. Ren Fail 2014; 36:1371-5. [PMID: 25109219 DOI: 10.3109/0886022x.2014.945182] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
PURPOSE Hyponatremia is a common electrolyte abnormality in a variety of medical conditions. Lower predialysis serum sodium concentration is associated with an increased risk of death in oligoanuric patients on hemodialysis. However, whether hyponatremia affects the short-term mortality in chronic peritoneal dialysis (CPD) patients remains unclear. METHODS We conducted a cross-sectional and two-year follow-up review retrospectively, and 318 patients with CPD were enrolled in a medical center. Serum sodium levels were measured at baseline and categorized as quartile of Na: quartile 1 (124-135 mEq/L), quartile 2 (136-139), quartile 3 (140-141) and quartile 4 (142-148). Mortality and cause of death were recorded for longitudinal analyses. RESULTS The patients with higher quartile (higher serum sodium) had a trend of lower age, peritoneal dialysis (PD) duration, co-morbidity index, D/P Cr and white blood cell counts and higher renal Kt/Vurea (Kt/V) and serum albumin level. Stepwise multiple linear regression analysis showed that serum sodium level was positively associated with albumin, residual renal Kt/V and negatively associated with age and PD duration in CPD patients. After two-year follow-up, stepwise multivariate Cox proportional hazards model demonstrated that age, co-morbidity index and serum albumin were the significant risk factors for all-cause two-year mortality, but not serum sodium levels. CONCLUSIONS Serum sodium level in CPD patients is associated with nutritional status, residual renal function and duration of PD. However, baseline serum sodium level is not an independent predictor of two-year mortality in CPD patients.
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Affiliation(s)
- Kuan-Hsing Chen
- Kidney Research Center, School of Medicine, Chang Gung Memorial Hospital, Chang Gung University , Taoyuan, Taiwan , ROC
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