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Vettoretti S, Molinari P, Armelloni S, Castellano G, Caldiroli L. Spontaneous low-protein intake in older CKD patients: one diet may not fit all. Front Nutr 2024; 11:1328939. [PMID: 38419850 PMCID: PMC10899392 DOI: 10.3389/fnut.2024.1328939] [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: 10/27/2023] [Accepted: 01/29/2024] [Indexed: 03/02/2024] Open
Abstract
BackgroundProtein restriction has been extended to stage 3 chronic kidney disease (CKD) regardless of age in the latest K-DOQI guidelines for the dietary management of patients with CKD. However, in elderly CKD patients there is a tendency to a spontaneous reduction in protein and energy intake that may impair the overall nutritional status. The aim of our study is to assess whether there are differences in malnutrition, exercise capacity and inflammatory status in elderly CKD patients with spontaneously low protein intake (sLPI) compared with patients with normal protein intake (NPI).MethodsWe performed a cross-sectional analysis of 123 incident patients. Malnutrition was assessed using Malnutrition Inflammation Score (MIS) and serum markers; As for physical performance, we used Short Physical Performance Battery (SPPB) and handgrip strength.ResultsWe found that in older patients with advanced CKD, as many as 68% had low spontaneous protein intake, and they were more malnourished evaluated with MIS (25% vs. 10%, p = 0.033), protein-energy wasting (PEW) (43% vs. 14%, p = 0.002) and nPCR (0.63[0.51–0.69] vs. 0.95[0.87–1.1], p < 0.0001). They also had worse body composition, in terms of lower mid-arm muscular circumference (MAMC), fat tissue index (FTI) and higher overhydration (OH). sLPI patients also had higher levels of IL6 (4.6[2.9–8.9] vs. 2.8[0.8–5.1], p = 0.002). Moreover, sLPI patients were frailer (33% vs. 24%, p = 0.037) and had poorer physical performance especially when assessed with (SPPB) (7[5–9] vs. 9[7–10], p = 0.004) and gait test time (6.08 + 2 vs. 7.22 + 2.7, p = 0.04). sLPI was associated with lower physical performance [SPPB OR, 0.79 (0.46–0.97), p = 0.046] and malnutrition [MIS 1.6 (1.05–3.5), p = 0.041] independently from patients’ age and eGFR.ConclusionWe found that in older patients with advanced CKD, up to 68% had low spontaneous protein intake and were frailer, more malnourished and with lower physical performance. These findings emphasize the importance of assessing patients’ needs, and personalized approaches with individual risk–benefit assessments should be sought. To achieve the best possible outcomes, targeted interventions should use all available tools.
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Affiliation(s)
- Simone Vettoretti
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione IRCCS Ca’Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Paolo Molinari
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione IRCCS Ca’Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Silvia Armelloni
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione IRCCS Ca’Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Giuseppe Castellano
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione IRCCS Ca’Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Lara Caldiroli
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione IRCCS Ca’Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
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Burstad KM, Cladis DP, Wiese GN, Butler M, Hill Gallant KM. Effects of Plant-Based Protein Consumption on Kidney Function and Mineral Bone Disorder Outcomes in Adults With Stage 3-5 Chronic Kidney Disease: A Systematic Review. J Ren Nutr 2023; 33:717-730. [PMID: 37116624 DOI: 10.1053/j.jrn.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 02/13/2023] [Accepted: 04/07/2023] [Indexed: 04/30/2023] Open
Abstract
INTRODUCTION Plant-based protein is of growing interest for dietary management of chronic kidney disease (CKD) and is hypothesized to preserve kidney function and reduce CKD-mineral bone disorder (MBD) complications, among other benefits. This systematic review aimed to summarize the available clinical trial evidence for the effect of plant-based protein on kidney function and CKD-MBD outcomes in adults with stage 3-5 CKD not on dialysis. METHODS Searches of Medline, Embase, Agricola, CAB abstracts, Web of Science, Scopus, and hand searching were performed. Clinical trials with ≥8 participants ≥18 years of age with an estimated glomerular filtration rate <60 mL/min/1.73 m2 but not on dialysis were included. Additionally, only clinical trials with ≥1-week interventions with ≥50% dietary protein from plant-based sources and reported at least one outcome for both kidney function and CKD-MBD outcomes were included. Of the 10,962 identified abstracts, 32 met inclusion criteria and were assessed for risk of bias. RESULTS Results for kidney function and CKD-MBD outcomes were heterogenous, with most studies having suboptimal methodological quality. In most of the studies (27/32), protein source was altered only secondarily to low-protein diet interventions. Thus, data synthesis and interpretation were focused on a subset of five studies that investigated a change in protein source only (i.e., animal vs. plant). Of this subset, four studies reported no change in kidney function, while one study reported a decrease. Three studies reported no change in serum phosphorus, and one study reported lower serum phosphorus following a vegetarian diet. Further, limited data and inconclusive results were observed for phosphaturic hormones, parathyroid hormone, and fibroblast growth factor-23. CONCLUSION Current clinical trial evidence on plant-based protein interventions for preserving kidney function and preventing CKD-MBD is limited to inform clinical guidelines at this time. This systematic review emphasizes the ongoing need to research the effects of plant-based protein on kidney function and CKD-MBD outcomes.
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Affiliation(s)
- Kendal M Burstad
- Department of Food Science and Nutrition, University of Minnesota, Saint Paul, Minnesota
| | - Dennis P Cladis
- Department of Food Science and Nutrition, University of Minnesota, Saint Paul, Minnesota
| | | | - Mary Butler
- Division of Health Policy and Management, University of Minnesota School of Public Health, Minneapolis, Minnesota
| | - Kathleen M Hill Gallant
- Department of Food Science and Nutrition, University of Minnesota, Saint Paul, Minnesota; Division of Nephrology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.
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Piccoli GB, Cederholm T, Avesani CM, Bakker SJL, Bellizzi V, Cuerda C, Cupisti A, Sabatino A, Schneider S, Torreggiani M, Fouque D, Carrero JJ, Barazzoni R. Nutritional status and the risk of malnutrition in older adults with chronic kidney disease - implications for low protein intake and nutritional care: A critical review endorsed by ERN-ERA and ESPEN. Clin Nutr 2023; 42:443-457. [PMID: 36857954 DOI: 10.1016/j.clnu.2023.01.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023]
Abstract
Increased life expectancy is posing unprecedented challenges to healthcare systems worldwide. These include a sharp increase in the prevalence of chronic kidney disease (CKD) and of impaired nutritional status with malnutrition-protein-energy wasting (PEW) that portends worse clinical outcomes, including reduced survival. In older adults with CKD, a nutritional dilemma occurs when indications from geriatric nutritional guidelines to maintain the protein intake above 1.0 g/kg/day to prevent malnutrition need to be adapted to the indications from nephrology guidelines, to reduce protein intake in order to prevent or slow CKD progression and improve metabolic abnormalities. To address these issues, the European Society for Clinical Nutrition and Metabolism (ESPEN) and the European Renal Nutrition group of the European Renal Association (ERN-ERA) have prepared this conjoint critical review paper, whose objective is to summarize key concepts related to prevention and treatment of both CKD progression and impaired nutritional status using dietary approaches, and to provide guidance on how to define optimal protein and energy intake in older adults with differing severity of CKD. Overall, the authors support careful assessment to identify the most urgent clinical challenge and the consequent treatment priority. The presence of malnutrition-protein-energy wasting (PEW) suggests the need to avoid or postpone protein restriction, particularly in the presence of stable kidney function and considering the patient's preferences and quality of life. CKD progression and advanced CKD stage support prioritization of protein restriction in the presence of a good nutritional status. Individual risk-benefit assessment and appropriate nutritional monitoring should guide the decision-making process. Higher awareness of the challenges of nutritional care in older adult patients with CKD is needed to improve care and outcomes. Research is advocated to support evidence-based recommendations, which we still lack for this increasingly large patient subgroup.
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Affiliation(s)
| | - Tommy Cederholm
- Department of Public Health and Caring Sciences, Uppsala University. Theme Inflammation & Aging, Karolinska University Hospital, Stockholm, Sweden
| | - Carla Maria Avesani
- Department of Clinical Science, Technology and Intervention, Division of Renal Medicine and Baxter Novum, Karolinska Institute, Stockholm, Sweden
| | - Stephan J L Bakker
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, Groningen, the Netherlands
| | - Vincenzo Bellizzi
- Nephrology and Dialysis Division - Department of Medical Sciences, Hospital "Sant'Anna e San Sebastiano", Caserta, Italy
| | - Cristina Cuerda
- Departamento de Medicina, Universidad Complutense de Madrid, Nutrition Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Adamasco Cupisti
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy
| | - Alice Sabatino
- UO Nefrologia, Azienda Ospedaliera- Universitaria Parma, Parma, Italy
| | - Stephane Schneider
- Gastroenterology and Nutrition, Nice University Hospital, Université Côte d'Azur, Nice, France
| | - Massimo Torreggiani
- Néphrologie et dialyse, Centre Hospitalier Le Mans, Avenue Rubillard, 72037, Le Mans, France
| | - Denis Fouque
- Renal Department, Lyon SUD Hospital, Hospices Civils de Lyon, Université de Lyon, Pierre Benite, France
| | - Juan Jesus Carrero
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden; Division of Nephrology, Department of Clinical Sciences, Karolinska Institute, Danderyd Hospital, Stockholm, Sweden
| | - Rocco Barazzoni
- Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy.
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Hirano Y, Fujikura T, Kono K, Ohashi N, Yamaguchi T, Hanajima W, Yasuda H, Yamauchi K. Decline in Walking Independence and Related Factors in Hospitalization for Dialysis Initiation: A Retrospective Cohort Study. J Clin Med 2022; 11:6589. [PMID: 36362821 PMCID: PMC9659087 DOI: 10.3390/jcm11216589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/29/2022] [Accepted: 11/04/2022] [Indexed: 10/29/2023] Open
Abstract
Patients with chronic kidney disease require intervention planning because their physical function declines with worsening disease. Providers can work closely with patients during the induction phase of dialysis. This single-center, retrospective observational study aimed to investigate the rate of decline in walking independence during the induction phase of dialysis and the factors that influence this decline, and to provide information on prevention and treatment during this period. Of the 354 patients who were newly initiated on hemodialysis between April 2018 and January 2022, 285 were included in the analysis. The functional independence measure-walking score was used to sort patients into decreased walking independence (DWI; n = 46) and maintained walking independence (no DWI; n = 239) groups, and patient characteristics were compared. After adjusting for various factors by logistic regression analysis, we observed that age, high Charlson comorbidity index (CCI), C-reactive protein, and emergency dialysis start (EDS) were significant predictors of DWI. Even during the very short period of dialysis induction, as many as 16.1% of patients had DWI, which was associated with older age, higher CCI, higher inflammation, and EDS. Therefore, we recommend the early identification of patients with these characteristics and early rehabilitation.
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Affiliation(s)
- Yuma Hirano
- Department of Rehabilitation Medicine, Hamamatsu University Hospital, 1-20-1 Handayama, Higashi-ku, Hamamatsu City 431-3192, Japan
| | - Tomoyuki Fujikura
- First Department of Medicine, Hamamatsu University Hospital, 1-20-1 Handayama, Higashi-ku, Hamamatsu City 431-3192, Japan
| | - Kenichi Kono
- Department of Physical Therapy, International University of Health and Welfare School of Health Science at Narita, 4-3, Kozunomori, Narita City 286-8686, Japan
| | - Naro Ohashi
- First Department of Medicine, Hamamatsu University Hospital, 1-20-1 Handayama, Higashi-ku, Hamamatsu City 431-3192, Japan
| | - Tomoya Yamaguchi
- Department of Rehabilitation Medicine, Hamamatsu University Hospital, 1-20-1 Handayama, Higashi-ku, Hamamatsu City 431-3192, Japan
| | - Wataru Hanajima
- Department of Rehabilitation Medicine, Hamamatsu University Hospital, 1-20-1 Handayama, Higashi-ku, Hamamatsu City 431-3192, Japan
| | - Hideo Yasuda
- First Department of Medicine, Hamamatsu University Hospital, 1-20-1 Handayama, Higashi-ku, Hamamatsu City 431-3192, Japan
| | - Katsuya Yamauchi
- Department of Rehabilitation Medicine, Hamamatsu University Hospital, 1-20-1 Handayama, Higashi-ku, Hamamatsu City 431-3192, Japan
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Caldiroli L, Vettoretti S, Armelloni S, Mattinzoli D, Ikehata M, Molinari P, Alfieri C, Messa P, Castellano G. Possible Benefits of a Low Protein Diet in Older Patients With CKD at Risk of Malnutrition: A Pilot Randomized Controlled Trial. Front Nutr 2022; 8:782499. [PMID: 35198584 PMCID: PMC8860492 DOI: 10.3389/fnut.2021.782499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 12/22/2021] [Indexed: 12/13/2022] Open
Abstract
BackgroundCurrent guidelines do not clarify whether older patients with advanced chronic kidney disease (CKD) may benefit of low protein (LP) diet if they are at risk of malnutrition. We compared the effects of normocalorie/normoprotein (NP) and normocalorie/LP diet on nutritional status and metabolic complications related to the progression of kidney damage in these patients.MethodsThis pilot study had an open-label randomized-controlled design (ClinicalTrials.gov Id: NCT05015647). Thirty-five patients were treated for 6 months with two different diets (LP = 17) and (NP = 18). Malnutrition was assessed by the Malnutrition Inflammation Score and International Society of Renal Nutrition and Metabolism criteria. Renal function was assessed by creatinine and cystatin-C-based estimated glomerular filtration rate (eGFR).ResultsAt the end of the study, Malnutrition Inflammation Score was improved in both LP and NP groups (respectively: 3 ± 3 vs. 6 ± 1.5, p = 0.020 and 3 ± 2.5 vs. 6 ± 2, p = 0.012), prevalence of protein energy wasting syndrome decreased only in LP. LP group had higher eGFRcys-C (17 ± 6 vs. 12 ± 4 ml/min/1.73 m2; p < 0.05), lower serum urea (105 ± 65 vs. 138 ± 30 mg/dl; p < 0.05) and lower parathormone (68 ± 10 vs. 99 ± 61 ng/L; p < 0.05) than NP. Serum and urinary phosphorous did not change while fibroblast growth factor 23 (FGF23)-intact and FGF23 c-terminal increased in both groups [FGF23-intact in LP: 70 (48; 98) vs. 126 (90; 410) pg/ml, p < 0.01 and in NP: 86 (57; 194) vs. 143 (119; 186) pg/ml, p < 0.01; FGF23 c-terminal in LP: 77 (30.3; 112) vs. 111 (63; 384) RU/ml, p < 0.01 and in NP: 142 (56.6; 175) vs. 157 (76.7; 281) RU/ml, p < 0.01].ConclusionsLP diet has a favorable impact on nutritional status as much as NP diet with possible greater benefits on the progression of kidney disease and some of its metabolic complications.Clinical Trial Registrationhttps://clinicaltrials.gov/ct2/show/NCT05015647, identifier: NCT05015647.
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Affiliation(s)
- Lara Caldiroli
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS) Ca'Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Simone Vettoretti
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS) Ca'Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
- *Correspondence: Simone Vettoretti
| | - Silvia Armelloni
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS) Ca'Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Deborah Mattinzoli
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS) Ca'Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Masami Ikehata
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS) Ca'Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Paolo Molinari
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS) Ca'Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Carlo Alfieri
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS) Ca'Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Piergiorgio Messa
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS) Ca'Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Giuseppe Castellano
- Unit of Nephrology, Dialysis and Renal Transplantation - Fondazione Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS) Ca'Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
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Torreggiani M, Fois A, Moio MR, Chatrenet A, Mazé B, Lippi F, Vigreux J, Beaumont C, Santagati G, Paulin N, Piccoli GB. Spontaneously Low Protein Intake in Elderly CKD Patients: Myth or Reality? Analysis of Baseline Protein Intake in a Large Cohort of Patients with Advanced CKD. Nutrients 2021; 13:nu13124371. [PMID: 34959922 PMCID: PMC8707092 DOI: 10.3390/nu13124371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/03/2021] [Accepted: 12/04/2021] [Indexed: 11/16/2022] Open
Abstract
The recent guidelines on nutritional management of chronic kidney disease (CKD) advise a reduction in protein intake as early as CKD stage 3, regardless of age, to slow kidney function impairment. However, since elderly patients are usually considered as having a spontaneously reduced protein intake, nutritional interventions to reduce protein intake are often considered futile. This study aimed to assess the baseline protein intake of elderly CKD patients referred for nephrology care, and explore the need for dietary evaluations, focusing on the current recommendations for protein restriction in CKD. This is an observational study of CKD patients followed in the unit dedicated to advanced CKD patients in Le Mans, France. Patients with stages 3 to 5 not on dialysis were included. All patients were evaluated by an expert dietician to assess their baseline protein intake, whenever possible on the basis of a 7-days diet journal; when this was not available, dietary recall or analysis of delivered meals was employed. Demographic characteristics, underlying kidney disease, Charlson Comorbidity Index (CCI), Malnutrition-Inflammation Score (MIS), Subjective Global Assessment (SGA) and clinical and laboratory data were recorded. Between 15 November 2017 and 31 December 2020, 436 patients were evaluated in the unit. Their age distribution was as follows: "young": <60 (n = 62), "young-old": 60-69 (n = 74), "old": 70-79 (n = 108), "old-old": 80-89 (n = 140) and "oldest-old": ≥90 (n = 54). The prevalence of vascular nephropathies was higher in patients older than 70 years compared to younger ones, as did CCI and MIS (p < 0.001). Moderate nutritional impairment (SGA: B) was higher in elderly patients, reaching 53.7% at ≥90, while less than 3% of patients in the overall cohort were classified as SGA C (p < 0.001). The median protein intake was higher than the recommended one of 0.8 g/kg/day in all age groups; it was 1.2 g/kg/day in younger patients and 1.0 thereafter (p < 0.001). Patient survival depended significantly on age (p < 0.001) but not on baseline protein intake (p = 0.63), and younger patients were more likely to start dialysis during follow-up (p < 0.001). Over half of the patients, including the old-old and oldest-old, were still on follow-up two years after referral and it was found that survival was only significantly associated with age and comorbidity and was not affected by baseline protein intake. Our study shows that most elderly patients, including old-old and extremely old CKD patients, are spontaneously on diets whose protein content is higher than recommended, and indicates there is a need for nutritional care for this population.
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Mocanu CA, Simionescu TP, Mocanu AE, Garneata L. Plant-Based versus Animal-Based Low Protein Diets in the Management of Chronic Kidney Disease. Nutrients 2021; 13:nu13113721. [PMID: 34835976 PMCID: PMC8621419 DOI: 10.3390/nu13113721] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/16/2021] [Accepted: 10/21/2021] [Indexed: 12/14/2022] Open
Abstract
Recent data reiterate low-protein diets (LPDs) as cornerstones in the conservative management of chronic kidney disease (CKD). The reduction in proteinuria, better blood pressure control and the reduction in the rate of decline in kidney function with LPDs were reported, both in non-diabetics and diabetics patients. Supplemented, vegetarian, very-low-protein diets (sVLPD, 0.3 g/kg-day) could postpone kidney replacement therapy (KRT) initiation, mainly through the better control of metabolic disorders of advanced CKD in non-diabetic patients. Plant-based diets could ameliorate gut microbiota and appear to be superior to mixed hypoproteic diets in treating advanced CKD: better control of nitrogen balance, acid-base metabolism and bone mineral disorders. Vegetarian diets generate fewer uremic toxins and reduce salt intake and acid overload. At the same time, they can improve lipid metabolism, providing a high ratio of unsaturated to saturated fatty acids, as well as insulin resistance.
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Affiliation(s)
- Carmen-Antonia Mocanu
- Department of Internal Medicine and Nephrology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania;
- Department of Nephrology, “Dr. Carol Davila” Teaching Hospital of Nephrology, 4 Calea Grivitei, Sector 1, 010731 Bucharest, Romania; (T.P.S.); (A.E.M.)
- Correspondence:
| | - Tudor Petrisor Simionescu
- Department of Nephrology, “Dr. Carol Davila” Teaching Hospital of Nephrology, 4 Calea Grivitei, Sector 1, 010731 Bucharest, Romania; (T.P.S.); (A.E.M.)
| | - Andreea Elena Mocanu
- Department of Nephrology, “Dr. Carol Davila” Teaching Hospital of Nephrology, 4 Calea Grivitei, Sector 1, 010731 Bucharest, Romania; (T.P.S.); (A.E.M.)
| | - Liliana Garneata
- Department of Internal Medicine and Nephrology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania;
- Department of Nephrology, “Dr. Carol Davila” Teaching Hospital of Nephrology, 4 Calea Grivitei, Sector 1, 010731 Bucharest, Romania; (T.P.S.); (A.E.M.)
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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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Lin YL, Hou JS, Wang CH, Su CY, Liou HH, Hsu BG. Effects of ketoanalogues on skeletal muscle mass in patients with advanced chronic kidney disease: real-world evidence. Nutrition 2021; 91-92:111384. [PMID: 34273683 DOI: 10.1016/j.nut.2021.111384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/11/2021] [Accepted: 05/31/2021] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Ketoanalogue (KA) supplementation in patients with chronic kidney disease (CKD) on a restricted protein diet has been shown to maintain their nutritional status in clinical trials. However, a gap existed between the findings of the clinical trials and the real-world practice. The aim of this prospective observational study was to evaluate the KA effect on skeletal muscle mass in patients with stage 4-5 CKD. METHODS Among 170 patients with CKD screened, 148 were recruited. Patients were defined as KA or non-KA users. During a 12-mo follow-up, skeletal muscle and body fat mass were measured via bioelectrical impedance analysis at baseline, 6 mo (n = 108), and 12 mo (n = 85). RESULTS Among the patients (mean age, 66.5 ± 12.9 y), KA users tended to maintain skeletal muscle and body fat mass, whereas non-KA users had a significantly reduced muscle mass (P = 0.011) and body fat gain (P = 0.004). Stratified by median age, in patients ≥68 y of age, non-KA users yielded the most significant muscle mass reduction and fat mass gain, whereas KA users revealed no changes in skeletal muscle and fat mass. CONCLUSION In real-world practice, we concluded that KA supplementation favorably prevents skeletal muscle mass loss and fat mass gain in elderly patients with stage 4-5 CKD.
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Affiliation(s)
- Yu-Li Lin
- Division of Nephrology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Jia-Sian Hou
- Division of Nephrology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Chih-Hsien Wang
- Division of Nephrology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Chen-Ying Su
- Division of Dietetics and Nutrition, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Hung-Hsiang Liou
- Division of Nephrology, Department of Internal Medicine, Hsin-Jen Hospital, New Taipei City, Taiwan.
| | - Bang-Gee Hsu
- Division of Nephrology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan.
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Santoro D, Torreggiani M, Pellicanò V, Cernaro V, Messina RM, Longhitano E, Siligato R, Gembillo G, Esposito C, Piccoli GB. Kidney Biopsy in Type 2 Diabetic Patients: Critical Reflections on Present Indications and Diagnostic Alternatives. Int J Mol Sci 2021; 22:5425. [PMID: 34063872 PMCID: PMC8196671 DOI: 10.3390/ijms22115425] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/11/2021] [Accepted: 05/18/2021] [Indexed: 12/15/2022] Open
Abstract
Roughly 3% of patients worldwide with a new diagnosis of type 2 diabetes mellitus (T2DM) already have an overt nephropathy at diagnosis and about 20-30% of the remaining ones develop a complication of this kind later in life. The early identification of kidney disease in diabetic patients is important as it slows its progression, which is important not only because this reduces the need for renal replacement therapy, but also because it decreases the high rate of mortality and morbidity associated with a reduction in kidney function. The increasing prevalence of type 2 diabetes and the consequent greater probability of finding different types of kidney diseases in diabetic patients frequently gives rise to overlapping diagnoses, a definition encompassing the differential diagnosis between diabetic and non-diabetic kidney disease. The issue is made more complex by the acknowledgement of the increasing frequency of presentations of what is termed "diabetic kidney disease" without relevant proteinuria, in particular in T2DM patients. Distinguishing between diabetes related and non-diabetes related forms of kidney disease in diabetic patients is not only a semantic question, as different diseases require different clinical management. However, while the urologic and macrovascular complications of diabetes, as well as overlapping parenchymal damage, can be diagnosed by means of imaging studies, often only a kidney biopsy will make a differential diagnosis possible. In fact, the coexistence of typical diabetic lesions, such as nodular glomerulopathy or glomerulosclerosis, with different glomerular, vascular and tubulo-interstitial alterations has been extensively described, and an analysis of the dominant histological pattern can contribute to determining what therapeutic approach should be adopted. However, due to the high frequency of kidney diseases, and to the fact that T2DM patients are often affected by multiple comorbidities, a kidney biopsy is not generally performed in T2DM patients. What follows is a review aiming to discuss the diagnostic work-up, on the base of clinical, laboratory and imaging criteria, and evaluate the present indications and alternatives to renal biopsy.
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Affiliation(s)
- Domenico Santoro
- Unit of Nephrology, Department of Clinical and Experimental Medicine, University of Messina, 98124 Messina, Italy; (D.S.); (V.P.); (V.C.); (R.M.M.); (E.L.); (R.S.); (G.G.)
| | - Massimo Torreggiani
- Néphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France;
| | - Vincenzo Pellicanò
- Unit of Nephrology, Department of Clinical and Experimental Medicine, University of Messina, 98124 Messina, Italy; (D.S.); (V.P.); (V.C.); (R.M.M.); (E.L.); (R.S.); (G.G.)
| | - Valeria Cernaro
- Unit of Nephrology, Department of Clinical and Experimental Medicine, University of Messina, 98124 Messina, Italy; (D.S.); (V.P.); (V.C.); (R.M.M.); (E.L.); (R.S.); (G.G.)
| | - Roberta Maria Messina
- Unit of Nephrology, Department of Clinical and Experimental Medicine, University of Messina, 98124 Messina, Italy; (D.S.); (V.P.); (V.C.); (R.M.M.); (E.L.); (R.S.); (G.G.)
| | - Elisa Longhitano
- Unit of Nephrology, Department of Clinical and Experimental Medicine, University of Messina, 98124 Messina, Italy; (D.S.); (V.P.); (V.C.); (R.M.M.); (E.L.); (R.S.); (G.G.)
| | - Rossella Siligato
- Unit of Nephrology, Department of Clinical and Experimental Medicine, University of Messina, 98124 Messina, Italy; (D.S.); (V.P.); (V.C.); (R.M.M.); (E.L.); (R.S.); (G.G.)
| | - Guido Gembillo
- Unit of Nephrology, Department of Clinical and Experimental Medicine, University of Messina, 98124 Messina, Italy; (D.S.); (V.P.); (V.C.); (R.M.M.); (E.L.); (R.S.); (G.G.)
| | - Ciro Esposito
- Unit of Nephrology and Dialysis, Department of Internal Medicine, ICS Maugeri S.p.A. SB, University of Pavia, 27100 Pavia, Italy;
| | - Giorgina Barbara Piccoli
- Néphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France;
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Fois A, Torreggiani M, Trabace T, Chatrenet A, Longhitano E, Mazé B, Lippi F, Vigreux J, Beaumont C, Moio MR, Piccoli GB. Quality of Life in CKD Patients on Low-Protein Diets in a Multiple-Choice Diet System. Comparison between a French and an Italian Experience. Nutrients 2021; 13:nu13041354. [PMID: 33919635 PMCID: PMC8073895 DOI: 10.3390/nu13041354] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 12/18/2022] Open
Abstract
Prescribing a low-protein diet (LPD) is part of the standard management of patients in advanced stages of chronic kidney disease (CKD). However, studies on the quality of life (QoL) of patients on LPDs are lacking, and the impact these diets have on their QoL is often given as a reason for not prescribing one. We, therefore, decided to assess the QoL in a cohort of CKD stage 3–5 patients followed up by a multiple-choice diet approach in an outpatient nephrology clinic in France. To do so, we used the short version of the World Health Organization’s quality of life questionnaire and compared the results with a historical cohort of Italian patients. We enrolled 153 patients, managed with tailored protein restriction in Le Mans, and compared them with 128 patients on similar diets who had been followed in Turin (Italy). We found there were no significant differences in terms of age (median 73 vs. 74 years, respectively), gender, CKD stage, and comorbidities (Charlson’s Comorbidity Index 7 vs. 6). French patients displayed a greater body mass index (29.0 vs. 25.4, p < 0.001) and prevalence of obesity (41.2 vs. 15.0%, p < 0.001). Baseline protein intake was over the target in France (1.2 g/kg of real body weight/day). In both cohorts, the burden of comorbidities was associated with poorer physical health perception while kidney function was inversely correlated to satisfaction with social life, independently of the type of diet. Our study suggests that the type of LPD they follow does not influence QoL in CKD patients and that a personalized approach towards protein restriction is feasible, even in elderly patients.
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Affiliation(s)
- Antioco Fois
- Nèphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France; (A.F.); (M.T.); (T.T.); (A.C.); (B.M.); (F.L.); (J.V.); (C.B.); (M.R.M.)
| | - Massimo Torreggiani
- Nèphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France; (A.F.); (M.T.); (T.T.); (A.C.); (B.M.); (F.L.); (J.V.); (C.B.); (M.R.M.)
| | - Tiziana Trabace
- Nèphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France; (A.F.); (M.T.); (T.T.); (A.C.); (B.M.); (F.L.); (J.V.); (C.B.); (M.R.M.)
| | - Antoine Chatrenet
- Nèphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France; (A.F.); (M.T.); (T.T.); (A.C.); (B.M.); (F.L.); (J.V.); (C.B.); (M.R.M.)
| | - Elisa Longhitano
- Department of Clinical and Experimental Medicine, Unit of Nephrology and Dialysis, A.O.U. “G. Martino”, University of Messina, 98124 Messina, Italy;
| | - Béatrice Mazé
- Nèphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France; (A.F.); (M.T.); (T.T.); (A.C.); (B.M.); (F.L.); (J.V.); (C.B.); (M.R.M.)
| | - Francoise Lippi
- Nèphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France; (A.F.); (M.T.); (T.T.); (A.C.); (B.M.); (F.L.); (J.V.); (C.B.); (M.R.M.)
| | - Jerome Vigreux
- Nèphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France; (A.F.); (M.T.); (T.T.); (A.C.); (B.M.); (F.L.); (J.V.); (C.B.); (M.R.M.)
| | - Coralie Beaumont
- Nèphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France; (A.F.); (M.T.); (T.T.); (A.C.); (B.M.); (F.L.); (J.V.); (C.B.); (M.R.M.)
| | - Maria Rita Moio
- Nèphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France; (A.F.); (M.T.); (T.T.); (A.C.); (B.M.); (F.L.); (J.V.); (C.B.); (M.R.M.)
| | - Giorgina Barbara Piccoli
- Nèphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037 Le Mans, France; (A.F.); (M.T.); (T.T.); (A.C.); (B.M.); (F.L.); (J.V.); (C.B.); (M.R.M.)
- Correspondence: ; Tel.: +33-66-973-3371
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Dietary Habits, Vitamin and Mineral Supplements in Patients with Chronic Kidney Disease (CKD). Nutrients 2020; 12:nu12123817. [PMID: 33327372 PMCID: PMC7764889 DOI: 10.3390/nu12123817] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 12/04/2020] [Indexed: 12/14/2022] Open
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Lee H, Park HH, Jo IY, Jhee JH, Park JT, Lee SM. Effects of Intensive Individualized Nutrition Counseling on Nutritional Status and Kidney Function in Patients With Stage 3 and 4 Chronic Kidney Disease. J Ren Nutr 2020; 31:593-601. [PMID: 33323326 DOI: 10.1053/j.jrn.2020.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 09/05/2020] [Accepted: 10/06/2020] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVE Although dietary modification is a critical component of chronic kidney disease (CKD) management, compliance with dietary recommendations is often suboptimal. This prospective intervention study was conducted to evaluate the effects and adherence of intensive, individualized nutrition counseling in CKD patients from a single nation Asian ethnic group. METHODS Patients with Stages 3 and 4 CKD were recruited from a tertiary hospital outpatient clinic in Korea. The intensive group received 3 monthly sessions of individualized intensive nutrition counseling. The control group received a one-time group program. The intensive group was compared with the control group at 3 months. RESULTS A total of 59 patients were enrolled, and 42 (71.2%) completed the study (23/32 of the intensive group; 19/27 of the control group). The mean age of the patients was 64.7 ± 12.5 years, and 81% were male. The most common nutritional diagnosis was an excessive intake of sodium (Na, 97.6%), followed by potassium (K, 78.6%), protein (52.4%), and phosphorus (P, 31.0%). After 3 months of nutrition counseling, K and P intakes decreased significantly in both the intensive group (K, 2,760.9 ± 677.4 vs. 1,500.7 ± 398.5 mg/d, P < .001; P, 1,010.5 ± 247.4 vs. 631.3 ± 178.1 mg/d, P < .001) and the control group (K, 2,090.8 ± 765.3 vs. 1,703.9 ± 490.0 mg/d, P = .036; P, 807.2 ± 163.8 vs. 679.1 ± 175.9 mg/d, P = .044). Meanwhile, protein (68.3 ± 21.8 vs. 45.4 ± 10.1 g/d, P = .001), Na (4,009.8 ± 1,418.2 vs. 2,224.6 ± 759.8 mg/d, P < .001), and energy intakes (1,857.1 ± 411.5 vs. 1,273.7 ± 231.5 kcal, P < .001) decreased in the intensive group, but were comparable in the control group. Notably, BMI decreased (BMI, 25.4 ± 2.5 vs. 24.9 ± 2.9 kg/m2, P = .014) while eGFR (43.1 ± 11.8 vs. 48.9 ± 13.7 mL/min/1.73m2, P = .002) improved significantly in the intensive group only. CONCLUSION Intensive individualized nutrition counseling results in better adherence to dietary recommendations and improvement in kidney function in CKD patients.
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Affiliation(s)
- Hosun Lee
- Department of Nutrition Care, Severance Hospital, Yonsei University Health System, Seoul, Korea
| | - Hyun Ha Park
- Department of Nutrition Care, Severance Hospital, Yonsei University Health System, Seoul, Korea
| | - In-Young Jo
- Department of Nutrition Care, Severance Hospital, Yonsei University Health System, Seoul, Korea
| | - Jong Hyun Jhee
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea; Division of Nephrology, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Tak Park
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea.
| | - Song Mi Lee
- Department of Nutrition Care, Severance Hospital, Yonsei University Health System, Seoul, Korea.
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Ready to Change: Attitudes of an Elderly CKD Stage 3-5 Population towards Testing Protein-Free Food. Nutrients 2020; 12:nu12113519. [PMID: 33207579 PMCID: PMC7696537 DOI: 10.3390/nu12113519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/10/2020] [Accepted: 11/12/2020] [Indexed: 01/21/2023] Open
Abstract
The recent Kidney Disease Outcomes Quality Initiative (K-DOQI) guidelines suggest an early start of protein restriction, raising issues on willingness to change dietary habits. The aim of this exploratory real-life study was to report on a test of dietary products (protein-free, not previously available in France) in a large, mainly elderly, chronic kidney disease (CKD) population (220 patients, median age: 77.5 years, Charlson comorbidity index (CCI): seven, malnutrition inflammation score (MIS): five, estimated glomerular filtration rate (eGFR): 26 mL/min), also as a means to tailor further implementation strategies. Forty-nine patients (22.28%) were considered to be poor candidates for the trial (metabolically unstable or with psychological, psychiatric or logistic barriers); of the remaining 171, 80.70% agreed to participate. Patients to whom the diet was not proposed had lower eGFR and higher comorbidity (eGFR 21 vs. 27 p = 0.021; MIS six vs. four p: <0.001). Patients who refused were 10 years older than those who accepted (83 vs. 73 years p < 0.001), with a higher CCI (eight vs. seven p = 0.008) and MIS (five vs. four p = 0.01). In the logistic regression, only age was significantly associated with refusal to participate (Odds ratio (OR): 5.408; 95% CI: 1.894 to 15.447). No difference was found according to low/intermediate/high frequency of weekly use of protein-free food. Our study suggests that most of the patients are ready to test new diet approaches. Only old age correlated with refusal, but frequency of implementation depended on individual preferences, underlying the importance of tailored approaches to improve adherence.
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15
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Piccoli GB, Di Iorio BR, Chatrenet A, D'Alessandro C, Nazha M, Capizzi I, Vigotti FN, Fois A, Maxia S, Saulnier P, Cabiddu G, Cupisti A. Dietary satisfaction and quality of life in chronic kidney disease patients on low-protein diets: a multicentre study with long-term outcome data (TOrino-Pisa study). Nephrol Dial Transplant 2020; 35:790-802. [PMID: 31435654 DOI: 10.1093/ndt/gfz147] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Accepted: 06/27/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Concerns about adherence and quality of life (QoL) limit the diffusion of low-protein diets (LPDs) as a way to slow chronic kidney disease (CKD) progression and postpone dialysis. The aim of this multicentre study is to assess dietary satisfaction in stable CKD patients. METHODS This was a multicentre cross-sectional study with long-term follow-up data. Prevalent patients on LPD for at least 6 months were selected in four Italian centres. QoL was assessed using the World Health Organization Quality of Life questionnaire, and diet satisfaction with the Modification of Diet in Renal Disease satisfaction questionnaire. Comorbidity was assessed by Charlson Comorbidity Index, estimated glomerular filtration rate (eGFR) was calculated by the CKD Epidemiology Collaboration equation and protein intake by Maroni-Mitch formula. Survival was analysed with Kaplan-Meier curves and Cox Proportional Hazard Model. RESULTS Four hundred and twenty-two CKD Stages 3-5 patients were enrolled. Over 95% were on moderately restricted diets (0.6 g/kg/day). Compliance was good (protein intake: 0.59 g/kg/day at baseline, 0.72 at the end of follow-up). Median dietary satisfaction was 4 on a 1-5 scale. QoL was not affected by the type of diet, but was influenced by age, comorbidity and setting of care. Two years later, at the end of follow-up, 66.6% of the patients were still on a diet; the main causes of discontinuation were dialysis and death. The dropout rate was low (5.5%); in Cox analysis, patient and renal survival were influenced by age and eGFR, but not by QoL, setting of care or type of diet. CONCLUSIONS LPDs are compatible with high dietary satisfaction and minimal dropout, at least in patients who are able to follow such a diet for at least 6 months.
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Affiliation(s)
- Giorgina Barbara Piccoli
- Department of Specialized Medicine, Nephrology, Centre Hospitalier Le Mans, Le Mans, France.,Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| | | | - Antoine Chatrenet
- Department of Specialized Medicine, Nephrology, Centre Hospitalier Le Mans, Le Mans, France
| | | | - Marta Nazha
- Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| | - Irene Capizzi
- Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| | | | - Antioco Fois
- Department of Specialized Medicine, Nephrology, Centre Hospitalier Le Mans, Le Mans, France
| | - Stefania Maxia
- Nephrology, Department of Medicine, Ospedale Brotzu, Cagliari, Italy
| | | | | | - Adamasco Cupisti
- Nephrology, Department of Medicine, University of Pisa, Pisa, Italy
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Medical Nutritional Therapy for Patients with Chronic Kidney Disease not on Dialysis: The Low Protein Diet as a Medication. J Clin Med 2020; 9:jcm9113644. [PMID: 33198365 PMCID: PMC7697617 DOI: 10.3390/jcm9113644] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 02/06/2023] Open
Abstract
The 2020 Kidney Disease Outcome Quality Initiative (KDOQI) Clinical Practice Guideline for Nutrition in chronic kidney disease (CKD) recommends protein restriction to patients affected by CKD in stages 3 to 5 (not on dialysis), provided that they are metabolically stable, with the goal to delay kidney failure (graded as evidence level 1A) and improve quality of life (graded as evidence level 2C). Despite these strong statements, low protein diets (LPDs) are not prescribed by many nephrologists worldwide. In this review, we challenge the view of protein restriction as an “option” in the management of patients with CKD, and defend it as a core element of care. We argue that LPDs need to be tailored and patient-centered to ensure adherence, efficacy, and safety. Nephrologists, aligned with renal dietitians, may approach the implementation of LPDs similarly to a drug prescription, considering its indications, contra-indications, mechanism of action, dosages, unwanted side effects, and special warnings. Following this framework, we discuss herein the benefits and potential harms of LPDs as a cornerstone in CKD management.
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Sabatino A, Cuppari L, Stenvinkel P, Lindholm B, Avesani CM. Sarcopenia in chronic kidney disease: what have we learned so far? J Nephrol 2020; 34:1347-1372. [PMID: 32876940 PMCID: PMC8357704 DOI: 10.1007/s40620-020-00840-y] [Citation(s) in RCA: 195] [Impact Index Per Article: 48.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 08/12/2020] [Indexed: 02/07/2023]
Abstract
The term sarcopenia was first introduced in 1988 by Irwin Rosenberg to define a condition of muscle loss that occurs in the elderly. Since then, a broader definition comprising not only loss of muscle mass, but also loss of muscle strength and low physical performance due to ageing or other conditions, was developed and published in consensus papers from geriatric societies. Sarcopenia was proposed to be diagnosed based on operational criteria using two components of muscle abnormalities, low muscle mass and low muscle function. This brought awareness of an important nutritional derangement with adverse outcomes for the overall health. In parallel, many studies in patients with chronic kidney disease (CKD) have shown that sarcopenia is a prevalent condition, mainly among patients with end stage kidney disease (ESKD) on hemodialysis (HD). In CKD, sarcopenia is not necessarily age-related as it occurs as a result of the accelerated protein catabolism from the disease and from the dialysis procedure per se combined with low energy and protein intakes. Observational studies showed that sarcopenia and especially low muscle strength is associated with worse clinical outcomes, including worse quality of life (QoL) and higher hospitalization and mortality rates. This review aims to discuss the differences in conceptual definition of sarcopenia in the elderly and in CKD, as well as to describe etiology of sarcopenia, prevalence, outcome, and interventions that attempted to reverse the loss of muscle mass, strength and mobility in CKD and ESKD patients.
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Affiliation(s)
- Alice Sabatino
- Division of Nephrology, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Lilian Cuppari
- Division of Nephrology, Federal University of São Paulo and Oswaldo Ramos Foundation, São Paulo, Brazil
| | - Peter Stenvinkel
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Technology and Intervention, Karolinska Institute, Stockholm, Sweden
| | - Bengt Lindholm
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Technology and Intervention, Karolinska Institute, Stockholm, Sweden
| | - Carla Maria Avesani
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Technology and Intervention, Karolinska Institute, Stockholm, Sweden.
- Nutrition Institute, Rio de Janeiro State University, Rio de Janeiro, Brazil.
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Yue H, Zhou P, Xu Z, Liu L, Zong A, Qiu B, Liu W, Jia M, Du F, Xu T. Effect of low-protein diet on kidney function and nutrition in nephropathy: A systematic review and meta-analysis of randomized controlled trials. Clin Nutr 2020; 39:2675-2685. [DOI: 10.1016/j.clnu.2019.11.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 10/25/2019] [Accepted: 11/25/2019] [Indexed: 01/05/2023]
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PhysIOpathology of NEuromuscular function rElated to fatigue in chronic Renal disease in the elderly (PIONEER): study protocol. BMC Nephrol 2020; 21:305. [PMID: 32711479 PMCID: PMC7382847 DOI: 10.1186/s12882-020-01976-6] [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: 07/15/2020] [Accepted: 07/22/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chronic Kidney Disease (CKD) is associated with reduced muscular strength resulting in profound fatigue. The physiopathology of these changes, their prevalence and evolution are still debated. Moreover, we have little data on elderly CKD patients. The present study protocol aims to 1) quantify the prevalence of low muscle strength (dynapenia) in a cohort of elderly patients with advanced CKD and to 2) characterize their force production coupled with electromyographic features and the symptoms of fatigue compared to a matched control group. METHODS This is a case-control, prospective, interventional study. INCLUSION CRITERIA age ≥ 60 years; CKD Stage 3b-5; clinical stability (i.e. no hospitalization and ≤ 25% in creatinine increase in the previous 3 months). Controls with normal kidney function will be matched in terms of age, gender and diabetes mellitus (requisite: estimated glomerular filtration rate ≥ 60 ml/min/1.73m2 available in the last 6 months). Exclusion criteria for cases and controls: neuromuscular disease, life expectancy < 3 months. The handgrip strength protocol is an intermittent test consisting in 6 series of 9 repetitions of 3-s sub-maximum contractions at 40% of the maximum voluntary contraction (MVC) and 2 s of resting time between contractions. Each series is separated by one fast sub-maximum contraction and one MVC. Strength is assessed with a high-frequency handgrip dynamometer paired with surface electromyography. Symptoms of fatigue are assessed using MFI-20 and FACIT-F questionnaires. In order to reach a statistical power of 96%, we plan to enroll 110 subjects in each group. DISCUSSION The novelty of this study resides in the application of an already validated set of tests in a population in which this combination (dynamometer, electromyography and questionnaires) has not previously been explored. We expect a high prevalence of dynapenia and a higher fatigability in CKD patients. A positive correlation is expected between reported fatigue and fatigability. Better appreciation of the prevalence and the relationship between fatigability and a sensation of fatigue can help us target interventions in CKD patients to improve quality of life and survival. TRIAL REGISTRATION The study was approved by Ethical Committee EST III n°20.03.01 and was recorded as a Clinical Trial (NCT04330807) on April 2, 2020.
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20
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Tavares APDSR, Mafra D, Leal VDO, Gama MDS, Vieira RMMDF, Brum IDSDC, Borges NA, Silva AA. Zinc Plasma Status and Sensory Perception in Nondialysis Chronic Kidney Disease Patients. J Ren Nutr 2020; 31:257-262. [PMID: 32693969 DOI: 10.1053/j.jrn.2020.05.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/26/2020] [Accepted: 05/16/2020] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE The aim of this study was to evaluate the association between zinc plasma levels and sensory perception in patients with chronic kidney disease (CKD). METHODS A cross-sectional study with 21 nondialysis CKD patients (11 men, 51.1 ± 7.1 years, body mass index 27.9 ± 7.1 kg/m2, estimated glomerular filtration rate 32.7 ± 19.9 mL/min) and 22 non-CKD volunteers (10 men, 49.8 ± 8.3 years, body mass index 28.5 ± 5.4 kg/m2) was conducted. Blood samples were collected to obtain plasma for zinc analysis. Anthropometric and biochemical parameters, as well as food intake and salivary flow rate, were also evaluated. Taste sensory perception for sweet, acidic, bitter, and salty flavors was determined by the "three-drop method," with 4 concentrations of the 4 basic tastes. RESULTS As expected, zinc plasma levels were significantly lower in CKD patients (70.1 ± 19.2ug/dL) when compared with the control group participants (123.2 ± 24.6 μg dL) (P ˂ .0001). The bitter taste perception was lower in the CKD group (p˂0.0001). Our findings showed that sensitivity to sour (P = .047), salty (P = .03), and bitter tastes was significantly lower in participants with lower zinc plasma levels. Also, bitter taste sensitivity was lower in participants with less zinc intake (P = .038). When grouping control subjects and CKD patients, significant correlations were observed between zinc plasma levels and the number of correct answers for bitter taste (r = 0.49, P = .001), number of correct answers for salty taste (r = 0.30, P = .048), and total score of correct answers (r = 0.30, P = .044). CONCLUSIONS Reduced zinc plasma levels in nondialysis CKD patients may be associated with lower perception of bitter, sour, and salty tastes and strategies to restore these levels are crucial due many factors, including food preferences and intake.
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Affiliation(s)
| | - Denise Mafra
- Graduate Program in Nutrition Sciences, Federal University of Rio de Janeiro (UFF), Niterói, Rio de Janeiro, Brazil; Graduate Program in Medical Sciences and Cardiovascular Sciences, Federal University of Rio de Janeiro (UFF), Niterói, Rio de Janeiro, Brazil
| | | | - Manuele Dos Santos Gama
- Graduate in Nutrition, Federal University of Rio de Janeiro (UFF), Niterói, Rio de Janeiro, Brazil
| | | | | | - Natalia Alvarenga Borges
- Graduate Program in Nutrition Sciences, Federal University of Rio de Janeiro (UFF), Niterói, Rio de Janeiro, Brazil; Institute of Nutrition, Rio de Janeiro State University (UERJ), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alexandra Anastacio Silva
- Graduate Program in Nutrition Sciences, Federal University of Rio de Janeiro (UFF), Niterói, Rio de Janeiro, Brazil
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Kemmler W, von Stengel S, Kohl M, Rohleder N, Bertsch T, Sieber CC, Freiberger E, Kob R. Safety of a Combined WB-EMS and High-Protein Diet Intervention in Sarcopenic Obese Elderly Men. Clin Interv Aging 2020; 15:953-967. [PMID: 32612355 PMCID: PMC7322975 DOI: 10.2147/cia.s248868] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 05/20/2020] [Indexed: 12/13/2022] Open
Abstract
Purpose Whole-body electromyostimulation (WB-EMS) especially in combination with a high-protein supplementation has been established as an efficient treatment against sarcopenia. However, there are several case reports of rhabdomyolysis after WB-EMS application. Thus, we asked if this training could potentially lead to deteriorations of the cardiac as well as the renal function. Materials and Methods One hundred sarcopenic obese men aged 70 years and older were randomly balanced (1-1-1) and allocated to one of the three study arms. During 16 weeks of intervention, these groups either performed WB-EMS and took a protein supplement (WB-EMS&P), solely received the protein supplement (Protein) or served as control group (CG). WB-EMS consisted of 1.5×20 min (85 Hz, 350 μs, 4 s of strain to 4 s of rest) applied with moderate-to-high intensity while moving. We further generated a daily protein intake of 1.7-1.8 g/kg/body mass per day. At baseline and 8-10 days after completion of the intervention, blood was drawn and biomarkers of muscle, cardiac and renal health were assessed. Results Hereby, we found slight but significant elevations of creatine kinase (CK) levels in the WB-EMS group pointing to minor damages of the skeletal muscle (140 U/l [81-210], p < 0.001). This was accompanied by a significant, low-grade increase of creatine kinase-muscle brain (CK-MB, 0.43 ng/mL [-0.29-0.96], p < 0.01) and high-sensitivity troponin T (hsTnT, 0.001 ng/mL. [0.000-0.003], p < 0.001) but without a higher risk of developing heart failure according to N-terminal prohormone of brain natriuretic peptide (NT-proBNP, -5.7 pg/mL [-38.8-24.6], p = 0.17). Estimated glomerular filtration rate (eGFR) was impaired neither by the high-protein supplementation alone nor in combination with WB-EMS (CG 76.0 mL/min/1.73 m2 [71.9-82.2] vs Protein 73.2 mL/min/1.73 m2 [63.0-78.9] vs WB-EMS&P 74.6 mL/min/1.73 m2 [62.8-84.1], p = 0.478). Conclusion In conclusion, even in the vulnerable group of sarcopenic obese seniors, the combination of WB-EMS with a high-protein intake revealed no short-term, negative impact on the eGFR, but potential consequences for the cardiovascular system need to be addressed in future studies.
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Affiliation(s)
- Wolfgang Kemmler
- Institute of Medical Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Simon von Stengel
- Institute of Medical Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Matthias Kohl
- Faculty of Medical and Life Science, University of Furtwangen, Schwenningen, Germany
| | - Nicolas Rohleder
- Institute of Psychology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Thomas Bertsch
- Institute of Clinical Chemistry, Laboratory Medicine and Transfusion Medicine, General Hospital Nuremberg, Paracelsus Medical University, Nuremberg, Germany
| | - Cornel C Sieber
- Institute for Biomedicine of Aging, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nuremberg, Germany
| | - Ellen Freiberger
- Institute for Biomedicine of Aging, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nuremberg, Germany
| | - Robert Kob
- Institute for Biomedicine of Aging, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nuremberg, Germany
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Abstract
PURPOSE OF REVIEW This review aims to summarize the current evidence on the effect of very-low-, low-, and high-protein diets on outcomes related to chronic kidney disease-mineral and bone disorder (CKD-MBD) and bone health in patients with CKD. RECENT FINDINGS Dietary protein restriction in the form of low- and very-low-protein diets have been used to slow down the progression of CKD. These diets can be supplemented with alpha-keto acid (KA) analogues of amino acids. Observational and randomized controlled trials have shown improvements in biochemical markers of CKD-MBD, including reductions in phosphorus, parathyroid hormone, and fibroblast growth factor-23. However, few studies have assessed changes in bone quantity and quality. Furthermore, studies assessing the effects of high-protein diets on CKD-MBD are scarce. Importantly, very-low- and low-protein diets supplemented with KA provide supplemental calcium in amounts that surpass current dietary recommendations, but to date there are no studies on calcium balance with KA. Current evidence suggests that dietary protein restriction in CKD may slow disease progression, which may subsequently benefit CKD-MBD and bone health outcomes. However, prospective randomized controlled trials assessing the effects of modulating dietary protein and supplementing with KA on all aspects of CKD-MBD and particularly bone health are needed.
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MESH Headings
- Amino Acids, Essential
- Bone Diseases, Metabolic/etiology
- Bone Diseases, Metabolic/metabolism
- Chronic Kidney Disease-Mineral and Bone Disorder/diet therapy
- Chronic Kidney Disease-Mineral and Bone Disorder/metabolism
- Diet, High-Protein
- Diet, Protein-Restricted
- Diet, Vegetarian
- Dietary Proteins
- Disease Progression
- Fibroblast Growth Factor-23
- Fibroblast Growth Factors/metabolism
- Humans
- Kidney Failure, Chronic/complications
- Kidney Failure, Chronic/metabolism
- Parathyroid Hormone/metabolism
- Phosphorus/metabolism
- Renal Insufficiency, Chronic/complications
- Renal Insufficiency, Chronic/diet therapy
- Renal Insufficiency, Chronic/metabolism
- Severity of Illness Index
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Affiliation(s)
| | - Annabel Biruete
- Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Kathleen M Hill Gallant
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA.
- Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA.
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