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Byrne F, Gillman B, Palmer B, Kiely M, Eustace J, Kearney P, Davidson F, Shiely F. The effect of dietary phosphorus load and food matrix on postprandial serum phosphate in hemodialysis patients: a pilot study. HRB Open Res 2021; 4:119. [PMID: 35187396 PMCID: PMC8822142 DOI: 10.12688/hrbopenres.13382.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2021] [Indexed: 12/26/2022] Open
Abstract
Background: Potential dietary strategies for controlling hyperphosphataemia include the use of protein sources with lower phosphorus bioavailability such as pulses and nuts, focus on phosphorus to protein ratios and the avoidance of all phosphate additives. Methods: We conducted a controlled crossover feeding study in 8 haemodialysis (HD) patients to investigate the acute postprandial effect of a modified versus standard low phosphorus diet for one day on serum phosphate, potassium and intact parathyroid levels in prevalent HD patients. Each participant consumed the modified diet on one day and the standard diet on a second day one week apart. The modified diet included beef and less dairy, with a lower phosphorus to protein ratio, as well as plant-based protein, whole grains, pulses and nuts containing phytates which reduces phosphorus bioavailability. Both diets were tailored for each participant to provide 1.1g protein/kg ideal body weight. Participants provided fasting bloods before breakfast, a pre-prandial sample before the lunch time main meal and samples at one-hour intervals for the four hours after the lunch time main meal, for analysis of phosphate, potassium and intact parathyroid hormone (iPTH). Results: At four hours post the lunch time main meal on each study day, individuals on the modified diet had serum phosphate readings 0.30 mmol/l lower than when on the standard diet (p-value = 0.015, 95% confidence interval [CI] -0.57, -0.04). The corresponding change in serum potassium at four hours was a decrease of 0.675 mmol/l (p-value = 0.011, CI -1.25, -0.10). Conclusions: Decreases in both serum phosphate and serum potassium readings on a modified low phosphorus diet encourage further larger studies to explore the possibility of greater food choice and healthier plant-based diets in HD patients. ClinicalTrials.gov registration: NCT04845724 (15/04/2021)
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Affiliation(s)
- Fiona Byrne
- Department of Nutrition & Dietetics, Cork, Cork University Hospital, Cork, T12 DC4A, Ireland
- Department of Renal Medicine, Cork University Hospital, Cork, T12 DC4A, Ireland
- Health Research Board, Clinical Research Facility Cork, University College Cork, Cork, T12 WE28, Ireland
| | - Barbara Gillman
- Department of Nutrition & Dietetics, Mater Misericordiae University Hospital, Dublin, D07 R2WY, Ireland
| | - Brendan Palmer
- Health Research Board, Clinical Research Facility Cork, University College Cork, Cork, T12 WE28, Ireland
- School of Public Health, University College Cork, Cork, T12 XF62, Ireland
| | - Mairead Kiely
- School of Food and Nutritional Sciences, University College Cork, Cork, T12 T656, Ireland
| | - Joseph Eustace
- Department of Renal Medicine, Cork University Hospital, Cork, T12 DC4A, Ireland
- Health Research Board, Clinical Research Facility Cork, University College Cork, Cork, T12 WE28, Ireland
| | - Patricia Kearney
- School of Public Health, University College Cork, Cork, T12 XF62, Ireland
| | - Fred Davidson
- Cork Public Analyst's Laboratory, St. Finbarr's Hospital, Cork, T12 XH60, Ireland
| | - Frances Shiely
- Health Research Board, Clinical Research Facility Cork, University College Cork, Cork, T12 WE28, Ireland
- School of Public Health, University College Cork, Cork, T12 XF62, Ireland
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2
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Tsai WC, Wu HY, Chiu YL, Yang JY, Pai MF, Wu YR, Lin WY, Hung KY, Chien KL, Hsu SP, Peng YS. Acute effects of dietary phosphorus intake on markers of mineral metabolism in hemodialysis patients: post hoc analysis of a randomized crossover trial. Ren Fail 2021; 43:141-148. [PMID: 33427559 PMCID: PMC7808738 DOI: 10.1080/0886022x.2020.1870138] [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] [Indexed: 11/04/2022] Open
Abstract
Background Long-term dietary phosphorus excess influences disturbances in mineral metabolism, but it is unclear how rapidly the mineral metabolism responds to short-term dietary change in dialysis populations. Methods This was a post hoc analysis of a randomized crossover trial that evaluated the short-term effects of low-phosphorus diets on mineral parameters in hemodialysis patients. Within a 9-day period, we obtained a total of 4 repeated measurements for each participant regarding dietary intake parameters, including calorie, phosphorus, and calcium intake, and markers of mineral metabolism, including phosphate, calcium, intact parathyroid hormone (iPTH), intact fibroblast growth factor 23 (iFGF23), and C-terminal fibroblast growth factor 23 (cFGF23). The correlations between dietary phosphorus intake and serum mineral parameters were assessed by using mixed-effects models. Results Thirty-four patients were analyzed. In the fully adjusted model, we found that an increase in dietary phosphorus intake of 100 mg was associated with an increase in serum phosphate of 0.3 mg/dL (95% confidence intervals [CI], 0.2–0.4, p < .001), a decrease in serum calcium of 0.06 mg/dL (95% CI, −0.11 to −0.01, p = .01), an increase in iPTH of 5.4% (95% CI, 1.4–9.3, p = .01), and an increase in iFGF23 of 5.0% (95% CI, 2.0–8.0, p = .001). Dietary phosphorus intake was not related to cFGF23. Conclusions Increased dietary phosphorus intake acutely increases serum phosphate, iPTH, and iFGF23 levels and decreases serum calcium levels, highlighting the important role of daily fluctuations of dietary habits in disturbed mineral homeostasis in hemodialysis patients.
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Affiliation(s)
- Wan-Chuan Tsai
- Division of Nephrology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,Center for General Education, Lee-Ming Institute of Technology, New Taipei City, Taiwan
| | - Hon-Yen Wu
- Division of Nephrology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei City, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, Taipei City, Taiwan.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei City, Taiwan
| | - Yen-Ling Chiu
- Division of Nephrology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, Taipei City, Taiwan.,Graduate Program in Biomedical Informatics, Yuan Ze University, Taoyuan City, Taiwan
| | - Ju-Yeh Yang
- Division of Nephrology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,Center for General Education, Lee-Ming Institute of Technology, New Taipei City, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, Taipei City, Taiwan
| | - Mei-Fen Pai
- Division of Nephrology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, Taipei City, Taiwan
| | - Yong-Ru Wu
- Dietary Department, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Wan-Yu Lin
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei City, Taiwan
| | - Kuan-Yu Hung
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, Taipei City, Taiwan
| | - Kuo-Liong Chien
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei City, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, Taipei City, Taiwan
| | - Shih-Ping Hsu
- Division of Nephrology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, Taipei City, Taiwan
| | - Yu-Sen Peng
- Division of Nephrology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, Taipei City, Taiwan.,Department of Applied Cosmetology, Lee-Ming Institute of Technology, New Taipei City, Taiwan.,Department of Healthcare Administration, Oriental Institute of Technology, New Taipei City, Taiwan
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3
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The Role of Diet in Bone and Mineral Metabolism and Secondary Hyperparathyroidism. Nutrients 2021; 13:nu13072328. [PMID: 34371838 PMCID: PMC8308808 DOI: 10.3390/nu13072328] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 12/13/2022] Open
Abstract
Bone disorders are a common complication of chronic kidney disease (CKD), obesity and gut malabsorption. Secondary hyperparathyroidism (SHPT) is defined as an appropriate increase in parathyroid hormone (PTH) secretion, driven by either reduced serum calcium or increased phosphate concentrations, due to an underlying condition. The available evidence on the effects of dietary advice on secondary hyperparathyroidism confirms the benefit of a diet characterized by decreased phosphate intake, avoiding low calcium and vitamin D consumption (recommended intakes 1000-1200 mg/day and 400-800 UI/day, respectively). In addition, low protein intake in CKD patients is associated with a better control of SHPT risk factors, although its strength in avoiding hyperphosphatemia and the resulting outcomes are debated, mostly for dialyzed patients. Ultimately, a consensus on the effect of dietary acid loads in the prevention of SHPT is still lacking. In conclusion, a reasonable approach for reducing the risk for secondary hyperparathyroidism is to individualize dietary manipulation based on existing risk factors and concomitant medical conditions. More studies are needed to evaluate long-term outcomes of a balanced diet on the management and prevention of secondary hyperparathyroidism in at-risk patients at.
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4
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The Influence of Dietary Interventions on Chronic Kidney Disease-Mineral and Bone Disorder (CKD-MBD). Nutrients 2021; 13:nu13062065. [PMID: 34208727 PMCID: PMC8235119 DOI: 10.3390/nu13062065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/06/2021] [Accepted: 06/07/2021] [Indexed: 12/14/2022] Open
Abstract
Chronic kidney disease is a health problem whose prevalence is increasing worldwide. The kidney plays an important role in the metabolism of minerals and bone health and therefore, even at the early stages of CKD, disturbances in bone metabolism are observed. In the course of CKD, various bone turnover or mineralization disturbances can develop including adynamic hyperparathyroid, mixed renal bone disease, osteomalacia. The increased risk of fragility fractures is present at any age in these patients. Nutritional treatment of patients with advanced stages of CKD is aiming at prevention or correction of signs, symptoms of renal failure, avoidance of protein-energy wasting (PEW), delaying or prevention of the occurrence of mineral/bone disturbances, and delaying the start of dialysis. The results of studies suggest that progressive protein restriction is beneficial with the progression of renal insufficiency; however, other aspects of dietary management of CKD patients, including changes in sodium, phosphorus, and energy intake, as well as the source of protein and lipids (animal or plant origin) should also be considered carefully. Energy intake must cover patients' energy requirement, in order to enable correct metabolic adaptation in the course of protein-restricted regimens and prevent negative nitrogen balance and protein-energy wasting.
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5
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Li J, He D, Zhao W, Wu X, Luo M, Wang Y, Yan M, Niu W, Li P. Association of mineral metabolism biomarkers with chronic kidney disease in Chinese adults. Clin Exp Nephrol 2021; 25:760-770. [PMID: 33725210 PMCID: PMC8154768 DOI: 10.1007/s10157-021-02037-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 02/22/2021] [Indexed: 11/13/2022]
Abstract
Background We aimed to examine the association of three mineral metabolism markers, including serum calcium, inorganic phosphorus, and intact parathyroid hormone with the risk of chronic kidney disease (CKD) at all stages. Methods This retrospective cohort study involved 3563 participants, including 3274 CKD patients and 289 healthy controls. CKD is diagnosed according to clinical guidelines from the 2012 KDIGO. Effect sizes are expressed odds ratio (OR) and 95 confidence interval (CI). Results After propensity score matching, per 0.5 mg/dL increment of inorganic phosphorus was significantly associated with 1.33-, 1.61-, and 2.85-fold increased risk of CKD at stages 1–2, 4, and 5, respectively. Regarding per 8 pg/mL increment of intact parathyroid hormone, significance was only noted for stage 5. In subsidiary analyses, the risk prediction of mineral metabolism markers under study was more evident in males and hypertensive subjects. A nomogram prediction model was constructed based on age, sex, and three mineral metabolism markers for CKD, with decent accuracy. Conclusions Our findings indicate that serum calcium was associated with all-stage CKD risk, whereas the association for inorganic phosphorus and intact parathyroid hormone was significant at advanced stages.
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Affiliation(s)
- Jialin Li
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China.,Department of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Danni He
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Wenjing Zhao
- Department of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Xi'ai Wu
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing, China
| | - Minjing Luo
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
| | - Ying Wang
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
| | - Meihua Yan
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China
| | - Wenquan Niu
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China.
| | - Ping Li
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, China.
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6
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Brown TJ, Williams H, Mafrici B, Jackson HS, Johansson L, Willingham F, McIntosh A, MacLaughlin HL. Dietary interventions with dietitian involvement in adults with chronic kidney disease: A systematic review. J Hum Nutr Diet 2021; 34:747-757. [PMID: 33682964 DOI: 10.1111/jhn.12870] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/22/2021] [Accepted: 01/23/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND A comprehensive evidence base is needed to support recommendations for the dietetic management of adults with chronic kidney disease (CKD). The present study aimed to determine the effect of dietary interventions with dietitian involvement on nutritional status, well-being, kidney risk factors and clinical outcomes in adults with CKD. METHODS Cochrane Central Register of Controlled Trials, CINAHL, MEDLINE, PsycINFO and EMBASE.com were searched from January 2000 to November 2019. Intentional weight loss and single nutrient studies were excluded. Risk of bias was assessed using the Cochrane risk-of-bias tool. Effectiveness was summarised using the mean difference between groups for each outcome per study. RESULTS Twelve controlled trials (1906 participants) were included. High fruit and vegetable intake, as well as a multidisciplinary hospital and community care programme, slowed the decline in glomerular filtration rate in adults with stage 3-4 CKD. Interventions addressing nutrition-related barriers increased protein and energy intake in haemodialysis patients. A Mediterranean diet and a diet with high n-3 polyunsaturated fatty acids improved the lipid profile in kidney transplant recipients. CONCLUSIONS A limited number of studies suggest benefits as a result of dietary interventions that are delivered by dietitians and focus on diet quality. We did not identify any studies that focussed on our primary outcome of nutritional status or studies that examined the timing or frequency of the nutritional assessment. This review emphasises the need for a wider body of high-quality evidence to support recommendations on what and how dietetic interventions are delivered by dietitians for adults with CKD.
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Affiliation(s)
- Tamara J Brown
- Usher Institute, Old Medical School, University of Edinburgh, Edinburgh, UK
| | - Harriet Williams
- Department of Nutrition and Dietetics, Betsi Cadwaladr University Health Board, Bangor, UK
| | - Bruno Mafrici
- Renal and Transplant Unit, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Helena S Jackson
- Renal and Transplantation Unit (Nutrition & Dietetics), St George's University Hospitals NHS Trust, London, UK
| | - Lina Johansson
- Department of Metabolism, Digestion and Reproduction, Imperial Healthcare NHS Trust, London, UK
| | - Fiona Willingham
- Dietetic department, East Lancashire Hospitals NHS Trust, Blackburn, UK
| | - Ashleigh McIntosh
- Faculty of Health Sciences and Medicine, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia
| | - Helen L MacLaughlin
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, QLD, Australia.,Royal Brisbane and Women's Hospital, Metro North Hospital and Health Service, Brisbane, QLD, Australia
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7
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Bover J, Molina P, Ureña-Torres P, Arenas MD. Feasible Low-Phosphorus Dietary Patterns in Maintenance Hemodialysis Patients: Need for Original Research. Kidney Int Rep 2020; 5:1845-1847. [PMID: 33165412 PMCID: PMC7610001 DOI: 10.1016/j.ekir.2020.09.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Jordi Bover
- Department of Nephrology, Fundació Puigvert and Universitat Autònoma, IIB Sant Pau, REDinREN, Barcelona, Catalonia, Spain
| | - Pablo Molina
- Department of Nephrology, Hospital Universitari Dr Peset, FISABIO, University of Valencia, Valencia, Spain
| | - Pablo Ureña-Torres
- Department of Dialysis, AURA Nord Saint Ouen, University of Paris Descartes, Paris, France
- Department of Renal Physiology, Necker Hospital, University of Paris Descartes, Paris, France
| | - María-Dolores Arenas
- Department of Nephrology, Hospital del Mar and Pompeu Fabra University, IMIM, Barcelona, Catalonia, Spain
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8
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Kuzmina AV. Nutritional support for patients with chronic kidney disease at pre-dialysis stages. TERAPEVT ARKH 2020; 92:117-123. [DOI: 10.26442/00403660.2020.06.000353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Indexed: 11/22/2022]
Abstract
Chronic kidney disease (CKD) is characterized by poor outcomes, an increasing frequency of new cases, the need for expensive method of renal replacement therapy at the terminal stage. The main task facing the doctor is slowing the progression of CKD and delay the start of dialysis by applying the nephroprotective strategy, of which diet therapy is an essential part. The key components of the diet for CKD patients are reducing sodium intake to 2.3 g per day in order to improve control of blood pressure (BP), dietary protein restriction adequate to renal function from 0.8 to 0.3 g/kg of body weight per day combined with the prescribing of ketoanalogues of essential amino acids, hyperglycemia control. With the progression of CKD, the main objectives of the diet therapy are the prevention/correction of complications: protein-energy waisting, metabolic acidosis, ensuring sufficient calories, corresponding to the bodys energy expenditures (3035 kcal/kg of body weight per day), limiting phosphate intake to 0.81 g a day, restriction of food potassium. Low-protein diet in combination with ketoanalogues of amino acids, regular monitoring and correction of the nutritional status of patients at the pre-dialysis stages of CKD is an effective and safe method of nephroprotection, which allows delaying the start of dialysis.
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9
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Sotomayor CG, te Velde-Keyzer CA, de Borst MH, Navis GJ, Bakker SJ. Lifestyle, Inflammation, and Vascular Calcification in Kidney Transplant Recipients: Perspectives on Long-Term Outcomes. J Clin Med 2020; 9:E1911. [PMID: 32570920 PMCID: PMC7355938 DOI: 10.3390/jcm9061911] [Citation(s) in RCA: 9] [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: 05/18/2020] [Accepted: 05/26/2020] [Indexed: 02/06/2023] Open
Abstract
After decades of pioneering and improvement, kidney transplantation is now the renal replacement therapy of choice for most patients with end-stage kidney disease (ESKD). Where focus has traditionally been on surgical techniques and immunosuppressive treatment with prevention of rejection and infection in relation to short-term outcomes, nowadays, so many people are long-living with a transplanted kidney that lifestyle, including diet and exposure to toxic contaminants, also becomes of importance for the kidney transplantation field. Beyond hazards of immunological nature, a systematic assessment of potentially modifiable-yet rather overlooked-risk factors for late graft failure and excess cardiovascular risk may reveal novel targets for clinical intervention to optimize long-term health and downturn current rates of premature death of kidney transplant recipients (KTR). It should also be realized that while kidney transplantation aims to restore kidney function, it incompletely mitigates mechanisms of disease such as chronic low-grade inflammation with persistent redox imbalance and deregulated mineral and bone metabolism. While the vicious circle between inflammation and oxidative stress as common final pathway of a multitude of insults plays an established pathological role in native chronic kidney disease, its characterization post-kidney transplant remains less than satisfactory. Next to chronic inflammatory status, markedly accelerated vascular calcification persists after kidney transplantation and is likewise suggested a major independent mechanism, whose mitigation may counterbalance the excess risk of cardiovascular disease post-kidney transplant. Hereby, we first discuss modifiable dietary elements and toxic environmental contaminants that may explain increased risk of cardiovascular mortality and late graft failure in KTR. Next, we specify laboratory and clinical readouts, with a postulated role within persisting mechanisms of disease post-kidney transplantation (i.e., inflammation and redox imbalance and vascular calcification), as potential non-traditional risk factors for adverse long-term outcomes in KTR. Reflection on these current research opportunities is warranted among the research and clinical kidney transplantation community.
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Affiliation(s)
- Camilo G. Sotomayor
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (C.A.t.V.-K.); (M.H.d.B.); (G.J.N.); (S.J.L.B.)
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10
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Saglimbene VM, Wong G, Craig JC, Ruospo M, Palmer SC, Campbell K, Garcia-Larsen V, Natale P, Teixeira-Pinto A, Carrero JJ, Stenvinkel P, Gargano L, Murgo AM, Johnson DW, Tonelli M, Gelfman R, Celia E, Ecder T, Bernat AG, Del Castillo D, Timofte D, Török M, Bednarek-Skublewska A, Duława J, Stroumza P, Hoischen S, Hansis M, Fabricius E, Felaco P, Wollheim C, Hegbrant J, Strippoli GFM. The Association of Mediterranean and DASH Diets with Mortality in Adults on Hemodialysis: The DIET-HD Multinational Cohort Study. J Am Soc Nephrol 2018; 29:1741-1751. [PMID: 29695436 DOI: 10.1681/asn.2018010008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 03/28/2018] [Indexed: 12/28/2022] Open
Abstract
Background Mediterranean and Dietary Approaches to Stop Hypertension (DASH) diets associate with lower cardiovascular and all-cause mortality in the general population, but the benefits for patients on hemodialysis are uncertain.Methods Mediterranean and DASH diet scores were derived from the GA2LEN Food Frequency Questionnaire within the DIET-HD Study, a multinational cohort study of 9757 adults on hemodialysis. We conducted adjusted Cox regression analyses clustered by country to evaluate the association between diet score tertiles and all-cause and cardiovascular mortality (the lowest tertile was the reference category).Results During the median 2.7-year follow-up, 2087 deaths (829 cardiovascular deaths) occurred. The adjusted hazard ratios (95% confidence intervals) for the middle and highest Mediterranean diet score tertiles were 1.20 (1.01 to 1.41) and 1.14 (0.90 to 1.43), respectively, for cardiovascular mortality and 1.10 (0.99 to 1.22) and 1.01 (0.88 to 1.17), respectively, for all-cause mortality. Corresponding estimates for the same DASH diet score tertiles were 1.01 (0.85 to 1.21) and 1.19 (0.99 to 1.43), respectively, for cardiovascular mortality and 1.03 (0.92 to 1.15) and 1.00 (0.89 to 1.12), respectively, for all-cause mortality. The association between DASH diet score and all-cause death was modified by age (P=0.03); adjusted hazard ratios for the middle and highest DASH diet score tertiles were 1.02 (0.81 to 1.29) and 0.70 (0.53 to 0.94), respectively, for younger patients (≤60 years old) and 1.05 (0.93 to 1.19) and 1.08 (0.95 to 1.23), respectively, for older patients.Conclusions Mediterranean and DASH diets did not associate with cardiovascular or total mortality in hemodialysis.
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Affiliation(s)
- Valeria M Saglimbene
- Sydney School of Public Health, University of Sydney, Sydney, Australia; .,Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden
| | - Germaine Wong
- Sydney School of Public Health, University of Sydney, Sydney, Australia.,Centre for Kidney Research, Children's Hospital at Westmead, Westmead, Australia.,Department of Renal Medicine, Westmead Hospital, Westmead, Australia
| | - Jonathan C Craig
- Sydney School of Public Health, University of Sydney, Sydney, Australia.,Centre for Kidney Research, Children's Hospital at Westmead, Westmead, Australia
| | - Marinella Ruospo
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden.,Division of Nephrology and Transplantation, Amedeo Avogadro University of Eastern Piedmont, Novara, Italy
| | - Suetonia C Palmer
- Department of Medicine, University of Otago Christchurch, Christchurch, New Zealand
| | | | - Vanessa Garcia-Larsen
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Patrizia Natale
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden.,Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Armando Teixeira-Pinto
- Sydney School of Public Health, University of Sydney, Sydney, Australia.,Centre for Kidney Research, Children's Hospital at Westmead, Westmead, Australia
| | | | - Peter Stenvinkel
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | | | - Angelo M Murgo
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden
| | - David W Johnson
- Division of Medicine, Department of Nephrology, University of Queensland at the Princess Alexandra Hospital, Woolloongabba, Australia.,Translational Research Institute, University of Queensland, Woolloongabba, Australia
| | - Marcello Tonelli
- Cumming School of Medicine, Health Sciences Centre, University of Calgary, Calgary, Alberta, Canada
| | - Rubén Gelfman
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden
| | - Eduardo Celia
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden
| | - Tevfik Ecder
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden
| | | | | | - Delia Timofte
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden
| | - Marietta Török
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden
| | - Anna Bednarek-Skublewska
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden.,Faculty of Medicine, Medical University of Lublin, Lublin, Poland
| | - Jan Duława
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden.,School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Paul Stroumza
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden
| | | | - Martin Hansis
- Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden
| | | | - Paolo Felaco
- Nefrología e dialisi, Presidio Ospedaliero Penne, Unità Sanitaria Locale Pescara, Pescara, Italy; and
| | | | | | - Giovanni F M Strippoli
- Sydney School of Public Health, University of Sydney, Sydney, Australia.,Diaverum Medical-Scientific Office, Diaverum, Lund, Sweden.,Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy.,Diaverum Academy, Diaverum, Bari, Italy
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11
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KDIGO 2017 Clinical Practice Guideline Update for the Diagnosis, Evaluation, Prevention, and Treatment of Chronic Kidney Disease-Mineral and Bone Disorder (CKD-MBD). Kidney Int Suppl (2011) 2017; 7:1-59. [PMID: 30675420 PMCID: PMC6340919 DOI: 10.1016/j.kisu.2017.04.001] [Citation(s) in RCA: 956] [Impact Index Per Article: 136.6] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Palmer SC, Maggo JK, Campbell KL, Craig JC, Johnson DW, Sutanto B, Ruospo M, Tong A, Strippoli GFM. Dietary interventions for adults with chronic kidney disease. Cochrane Database Syst Rev 2017; 4:CD011998. [PMID: 28434208 PMCID: PMC6478277 DOI: 10.1002/14651858.cd011998.pub2] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Dietary changes are routinely recommended in people with chronic kidney disease (CKD) on the basis of randomised evidence in the general population and non-randomised studies in CKD that suggest certain healthy eating patterns may prevent cardiovascular events and lower mortality. People who have kidney disease have prioritised dietary modifications as an important treatment uncertainty. OBJECTIVES This review evaluated the benefits and harms of dietary interventions among adults with CKD including people with end-stage kidney disease (ESKD) treated with dialysis or kidney transplantation. SEARCH METHODS We searched the Cochrane Kidney and Transplant Specialised Register (up to 31 January 2017) through contact with the Information Specialist using search terms relevant to this review. Studies contained in the Specialised Register are identified through search strategies specifically designed for CENTRAL, MEDLINE, and EMBASE; handsearching conference proceedings; and searching the International Clinical Trials Register (ICTRP) Search Portal and ClinicalTrials.gov. SELECTION CRITERIA Randomised controlled trials (RCTs) or quasi-randomised RCTs of dietary interventions versus other dietary interventions, lifestyle advice, or standard care assessing mortality, cardiovascular events, health-related quality of life, and biochemical, anthropomorphic, and nutritional outcomes among people with CKD. DATA COLLECTION AND ANALYSIS Two authors independently screened studies for inclusion and extracted data. Results were summarised as risk ratios (RR) for dichotomous outcomes or mean differences (MD) or standardised MD (SMD) for continuous outcomes, with 95% confidence intervals (CI) or in descriptive format when meta-analysis was not possible. Confidence in the evidence was assessed using GRADE. MAIN RESULTS We included 17 studies involving 1639 people with CKD. Three studies enrolled 341 people treated with dialysis, four studies enrolled 168 kidney transplant recipients, and 10 studies enrolled 1130 people with CKD stages 1 to 5. Eleven studies (900 people) evaluated dietary counselling with or without lifestyle advice and six evaluated dietary patterns (739 people), including one study (191 people) of a carbohydrate-restricted low-iron, polyphenol enriched diet, two studies (181 people) of increased fruit and vegetable intake, two studies (355 people) of a Mediterranean diet and one study (12 people) of a high protein/low carbohydrate diet. Risks of bias in the included studies were generally high or unclear, lowering confidence in the results. Participants were followed up for a median of 12 months (range 1 to 46.8 months).Studies were not designed to examine all-cause mortality or cardiovascular events. In very-low quality evidence, dietary interventions had uncertain effects on all-cause mortality or ESKD. In absolute terms, dietary interventions may prevent one person in every 3000 treated for one year avoiding ESKD, although the certainty in this effect was very low. Across all 17 studies, outcome data for cardiovascular events were sparse. Dietary interventions in low quality evidence were associated with a higher health-related quality of life (2 studies, 119 people: MD in SF-36 score 11.46, 95% CI 7.73 to 15.18; I2 = 0%). Adverse events were generally not reported.Dietary interventions lowered systolic blood pressure (3 studies, 167 people: MD -9.26 mm Hg, 95% CI -13.48 to -5.04; I2 = 80%) and diastolic blood pressure (2 studies, 95 people: MD -8.95, 95% CI -10.69 to -7.21; I2 = 0%) compared to a control diet. Dietary interventions were associated with a higher estimated glomerular filtration rate (eGFR) (5 studies, 219 people: SMD 1.08; 95% CI 0.26 to 1.97; I2 = 88%) and serum albumin levels (6 studies, 541 people: MD 0.16 g/dL, 95% CI 0.07 to 0.24; I2 = 26%). A Mediterranean diet lowered serum LDL cholesterol levels (1 study, 40 people: MD -1.00 mmol/L, 95% CI -1.56 to -0.44). AUTHORS' CONCLUSIONS Dietary interventions have uncertain effects on mortality, cardiovascular events and ESKD among people with CKD as these outcomes were rarely measured or reported. Dietary interventions may increase health-related quality of life, eGFR, and serum albumin, and lower blood pressure and serum cholesterol levels.Based on stakeholder prioritisation of dietary research in the setting of CKD and preliminary evidence of beneficial effects on risks factors for clinical outcomes, large-scale pragmatic RCTs to test the effects of dietary interventions on patient outcomes are required.
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Affiliation(s)
- Suetonia C Palmer
- University of Otago ChristchurchDepartment of Medicine2 Riccarton AvePO Box 4345ChristchurchNew Zealand8140
| | - Jasjot K Maggo
- University of Otago ChristchurchDepartment of Medicine2 Riccarton AvePO Box 4345ChristchurchNew Zealand8140
| | - Katrina L Campbell
- Bond UniversityFaculty of Health Science and Medicine2 Promenthean WayRobinaQueenslandAustralia4226
| | - Jonathan C Craig
- The University of SydneySydney School of Public HealthEdward Ford Building A27SydneyNSWAustralia2006
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchWestmeadNSWAustralia2145
| | - David W Johnson
- Princess Alexandra HospitalDepartment of Nephrology199 Ipswich RdWoolloongabbaQueenslandAustralia4102
| | - Bernadet Sutanto
- The Children's Hospital at WestmeadCentre for Kidney ResearchWestmeadNSWAustralia2145
| | - Marinella Ruospo
- DiaverumMedical Scientific OfficeLundSweden
- Amedeo Avogadro University of Eastern PiedmontDivision of Nephrology and Transplantation, Department of Translational MedicineVia Solaroli 17NovaraItaly28100
| | - Allison Tong
- The University of SydneySydney School of Public HealthEdward Ford Building A27SydneyNSWAustralia2006
- The Children's Hospital at WestmeadCentre for Kidney ResearchWestmeadNSWAustralia2145
| | - Giovanni FM Strippoli
- The University of SydneySydney School of Public HealthEdward Ford Building A27SydneyNSWAustralia2006
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchWestmeadNSWAustralia2145
- DiaverumMedical Scientific OfficeLundSweden
- University of BariDepartment of Emergency and Organ TransplantationBariItaly
- Diaverum AcademyBariItaly
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Kelly JT, Palmer SC, Wai SN, Ruospo M, Carrero JJ, Campbell KL, Strippoli GFM. Healthy Dietary Patterns and Risk of Mortality and ESRD in CKD: A Meta-Analysis of Cohort Studies. Clin J Am Soc Nephrol 2017; 12:272-279. [PMID: 27932391 PMCID: PMC5293335 DOI: 10.2215/cjn.06190616] [Citation(s) in RCA: 171] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 10/19/2016] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND OBJECTIVES Patients with CKD are advised to follow dietary recommendations that restrict individual nutrients. Emerging evidence indicates overall eating patterns may better predict clinical outcomes, however, current data on dietary patterns in kidney disease are limited. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS This systematic review aimed to evaluate the association between dietary patterns and mortality or ESRD among adults with CKD. Medline, Embase, and reference lists were systematically searched up to November 24, 2015 by two independent review authors. Eligible studies were longitudinal cohort studies reporting the association of dietary patterns with mortality, cardiovascular events, or ESRD. RESULTS A total of seven studies involving 15,285 participants were included. Healthy dietary patterns were generally higher in fruit and vegetables, fish, legumes, cereals, whole grains, and fiber, and lower in red meat, salt, and refined sugars. In six studies, healthy dietary patterns were consistently associated with lower mortality (3983 events; adjusted relative risk, 0.73; 95% confidence interval, 0.63 to 0.83; risk difference of 46 fewer (29-63 fewer) events per 1000 people over 5 years). There was no statistically significant association between healthy dietary patterns and risk of ESRD (1027 events; adjusted relative risk, 1.04; 95% confidence interval, 0.68 to 1.40). CONCLUSIONS Healthy dietary patterns are associated with lower mortality in people with kidney disease. Interventions to support adherence to increased fruit and vegetable, fish, legume, whole grain, and fiber intake, and reduced red meat, sodium, and refined sugar intake could be effective tools to lower mortality in people with kidney disease.
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Affiliation(s)
- Jaimon T. Kelly
- Faculty of Health Sciences and Medicine, Bond University, Queensland, Australia
| | - Suetonia C. Palmer
- Department of Medicine, University of Otago Christchurch, Christchurch, New Zealand
| | - Shu Ning Wai
- Faculty of Health Sciences and Medicine, Bond University, Queensland, Australia
| | - Marinella Ruospo
- Department of Translational Medicine, University of Eastern Piedmont Amedeo Avogadro, Alessandria, Italy
- Diaverum Academy, Lund, Sweden
| | - Juan-Jesus Carrero
- Division of Renal Medicine, Department of Clinical Science, Intervention and technology, Karolinska Institutet, Huddinge, Sweden
| | - Katrina L. Campbell
- Faculty of Health Sciences and Medicine, Bond University, Queensland, Australia
| | - Giovanni F. M. Strippoli
- Diaverum Academy, Lund, Sweden
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy. Diaverum Academy, Sweden; and
- Sydney School of Public Health, University of Sydney, New South Wales, Australia
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Rebholz CM, Coresh J, Grams ME, Steffen LM, Anderson CAM, Appel LJ, Crews DC. Dietary Acid Load and Incident Chronic Kidney Disease: Results from the ARIC Study. Am J Nephrol 2016; 42:427-35. [PMID: 26789417 PMCID: PMC4733508 DOI: 10.1159/000443746] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 12/10/2015] [Indexed: 01/26/2023]
Abstract
BACKGROUND Higher dietary acid load can result in metabolic acidosis and is associated with faster kidney disease progression in patients with chronic kidney disease (CKD). However, the relationship between dietary acid load and incident CKD has not been evaluated. METHODS We conducted prospective analyses of the Atherosclerosis Risk in Communities study participants without CKD at baseline (1987-1989, n = 15,055). Dietary acid load was estimated using the equation for potential renal acid load by Remer and Manz, incorporating dietary intake data from a food frequency questionnaire. Incident CKD was assessed from baseline through 2010 and defined as estimated glomerular filtration rate (eGFR) <60 ml/min/1.73 m2 accompanied by 25% eGFR decline, CKD-related hospitalization or death or end-stage renal disease identified by linkage to the US Renal Data System registry. RESULTS In the overall study population, 55% were female, 26% were African-American and mean age at baseline was 54 years. During a median follow-up of 21 years, there were 2,351 (15.6%) incident CKD cases. After adjusting for demographics (age, sex, race-center), established risk factors (diabetes status, hypertension status, overweight/obese status, smoking status, education level, physical activity), caloric intake and baseline eGFR, higher dietary acid load were associated with higher risk of incident CKD (hazard ratio [HR] for quartile 4 vs. 1: 1.13, 95% CI 1.01-1.28, p for trend = 0.02; HR per interquartile range increase: 1.06, 95% CI 1.00-1.11, p = 0.04). CONCLUSION Dietary acid load is associated with incident CKD in a population-based sample. These data suggest a potential avenue for CKD risk reduction through diet.
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Affiliation(s)
- Casey M Rebholz
- Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University, Baltimore, Md., USA
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