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Petrakis I, Bacharaki D, Kyriazis P, Balafa O, Dounousi E, Tsirpanlis G, Theodoridis M, Tsotsorou O, Markaki A, Georgoulidou A, Triantafyllis G, Giannikouris I, Kokkalis A, Stavroulopoulos A, Stylianou K. Cardiovascular and All-Cause Mortality Is Affected by Serum Magnesium and Diet Pattern in a Cohort of Dialysis Patients. J Clin Med 2024; 13:4024. [PMID: 39064068 PMCID: PMC11277800 DOI: 10.3390/jcm13144024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Revised: 07/04/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Background: Hypomagnesaemia is associated with an increased overall mortality in patients with chronic kidney disease on dialysis (CKD-5D). Mediterranean-style diet (MD), having a high magnesium content, can serve as a form of dietary magnesium supplementation. We examined whether there is a potential link between increased Mediterranean Diet score (MDS) and elevated serum magnesium (sMg) to assess its impact on reducing mortality risk in CKD-5D patients. Methods: In this multi-center prospective observational study, 117 CKD-5D patients (66 on hemodialysis and 51 on peritoneal dialysis) with a mean age of 62 ± 15 years were studied for a median follow-up period of 68 months. After baseline assessment, including measurement of sMg and MDS, all patients were followed up for cardiovascular (CV) and all-cause mortality. Results: Forty deaths occurred, 58% of which were cardiovascular. Patients who were above the median value of sMg (2.2 mg/dL) had a 66% reduction in CV (crude HR, 0.34; 95% CI, 0.11-0.70), and 49% reduction in all-cause (crude HR, 0.51; 95% CI, 0.27-0.96) mortality, even after adjustment for age, malnutrition inflammation score, left ventricular mass index, peripheral vascular disease and diabetes. Similar results were obtained when sMg was analyzed as a continuous variable. sMg was associated directly with MDS (r = 0.230; p = 0.012). Conclusions: Higher sMg levels are strongly and independently associated with reduced CV and all-cause mortality in CKD-5D patients. A strong correlation exists between MDS and sMg. Elevated sMg levels, achieved through MD adherence, can significantly reduce CV mortality, implicating MD as a mediator of the association between sMg and CV mortality.
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Affiliation(s)
- Ioannis Petrakis
- Nephrology Department, University General Hospital of Heraklion, 71500 Heraklion, Greece;
| | - Dimitra Bacharaki
- Nephrology Department, Attikon University Hospital, 12462 Athens, Greece; (D.B.); (O.T.)
| | - Periklis Kyriazis
- Division of Nephrology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Olga Balafa
- Nephrology Department, University Hospital of Ioannina, 45500 Ioannina, Greece; (O.B.); (E.D.)
| | - Evangelia Dounousi
- Nephrology Department, University Hospital of Ioannina, 45500 Ioannina, Greece; (O.B.); (E.D.)
| | - George Tsirpanlis
- Nephrology Department, General Hospital of Athens “G. Gennimatas”, 11527 Athens, Greece;
| | - Marios Theodoridis
- Department of Nephrology, Democritus University of Thrace, 68150 Alexandroupolis, Greece;
| | - Ourania Tsotsorou
- Nephrology Department, Attikon University Hospital, 12462 Athens, Greece; (D.B.); (O.T.)
| | - Anastasia Markaki
- Department of Nutrition and Dietetics, Hellenic Mediterranean University, 71410 Heraklion, Greece;
| | | | - George Triantafyllis
- Department of Nephrology, Hemodialysis Unit, Mediterraneo Hospital, 16675 Glyfada, Greece; (G.T.); (I.G.)
| | - Ioannis Giannikouris
- Department of Nephrology, Hemodialysis Unit, Mediterraneo Hospital, 16675 Glyfada, Greece; (G.T.); (I.G.)
| | | | - Aristeides Stavroulopoulos
- Nephrology Department, General Clinic of Kalithea, IASIO Hospital, 17675 Athens, Greece;
- NEPHROEXPERT—Athens Kidney Institute, 17675 Athens, Greece
| | - Kostas Stylianou
- Nephrology Department, University General Hospital of Heraklion, 71500 Heraklion, Greece;
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Paradigm shift in lifestyle modification for solitary kidney after donor nephrectomy. Curr Opin Nephrol Hypertens 2023; 32:67-75. [PMID: 36444664 DOI: 10.1097/mnh.0000000000000853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PURPOSE OF REVIEW Living donor kidney transplantation potentially leads to long-term complications including chronic kidney disease, end-stage kidney disease, elevated blood pressure, and pregnancy-associated hypertension. Given living donors generally do not have underlying medical conditions, lifestyle modifications, particularly dietary interventions may prevent those complications and improve their health outcomes. RECENT FINDINGS Glomerular hyperfiltration occurs as physiologic adaptation during an initial postdonor nephrectomy period. In the long-term, these adaptations may become pathologic consequences resulting from hyperfiltration-mediated kidney injury and ultimately secondary focal segmental glomerulosclerosis in the solitary kidney. Dietary interventions to slow a decline in kidney function include low protein intake of <0.8 g/kg/day and low sodium consumption of 2-4 g/day as well as certain health dietary patterns. There is no evidence regarding the quantity and quality of protein that can be recommended for living kidney donors and the same for sodium. Plant Dominant (PLADO) diets, Dietary Approaches to Stop Hypertension (DASH), Mediterranean, and vegetarian diets may be favorable for living kidney donors with solitary kidney but the evidence is still lacking. SUMMARY Although dietary interventions may provide benefits and kidney health for living kidney donors, further studies including clinical trials are required to incorporate them into clinical practice guidelines.
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Diet and Proteinuria: State of Art. Int J Mol Sci 2022; 24:ijms24010044. [PMID: 36613485 PMCID: PMC9819984 DOI: 10.3390/ijms24010044] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/11/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
Proteinuria is a broad term used to describe the pathological presence of proteins, including albumin, globulin, Bence-Jones protein, and mucoprotein in the urine. When persistent, proteinuria is a marker of kidney damage and represents a reliable predictor of the risk of progression of renal failure. Medical nutrition therapy is imperative for patients with proteinuria because it may slow the progression of renal disease. The aim of this review is to explore different nutritional approaches in the management of proteinuria and their influence on pathophysiological processes. As such, protein restriction is the main dietary intervention. Indeed, other management approaches are frequently used to reduce it regarding micro and macronutrients, but also the dietary style. Among these, the nutritional approach represents one of the most used and controversial interventions and the studies rarely take the form of randomized and controlled trials. With this work we aspire to analyze current clinical knowledge of how nutrition could influence proteinuria, potentially representing a useful tool in the management of proteinuric nephropathy.
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Naber T, Purohit S. Chronic Kidney Disease: Role of Diet for a Reduction in the Severity of the Disease. Nutrients 2021; 13:3277. [PMID: 34579153 PMCID: PMC8467342 DOI: 10.3390/nu13093277] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/13/2021] [Accepted: 09/17/2021] [Indexed: 12/15/2022] Open
Abstract
Chronic kidney disease affects ~37 million adults in the US, and it is often undiagnosed due to a lack of apparent symptoms in early stages. Chronic kidney disease (CKD) interferes with the body's physiological and biological mechanisms, such as fluid electrolyte and pH balance, blood pressure regulation, excretion of toxins and waste, vitamin D metabolism, and hormonal regulation. Many CKD patients are at risk of hyperkalemia, hyperphosphatemia, chronic metabolic acidosis, bone deterioration, blood pressure abnormalities, and edema. These risks may be minimized, and the disease's progression may be slowed through careful monitoring of protein, phosphorus, potassium, sodium, and calcium, relieving symptoms experienced by CKD patients. In this review, the current Kidney Disease Outcomes Quality Initiative (KDOQI) recommendations are highlighted, reflecting the 2020 update, including explanations for the pathophysiology behind the recommendations. The Dietary Approaches to Stop Hypertension, the Mediterranean diet, and the whole foods plant-based diet are currently being examined for their potential role in delaying CKD progression. Biological explanations for why the whole foods plant-based diet may benefit CKD patients compared to diets that include animal products are examined. Strong evidence continues to support the importance of diet meeting the daily requirement in the prevention and progression of kidney disease, and medical nutrition therapy with a registered dietitian is a critical aspect in medical intervention for CKD.
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Affiliation(s)
- Tania Naber
- Department of Interdisciplinary Research, College of Allied Health Sciences, Augusta University, Augusta, GA 30912, USA;
| | - Sharad Purohit
- Department of Undergraduate Health Professionals, College of Allied Health Sciences, Augusta University, Augusta, GA 30912, USA
- Department of Gynecology and Obstetrics, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Center for Biotechnology and Genomic Medicine, Augusta University, Augusta, GA 30912, USA
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Bargetzi A, Emmenegger N, Wildisen S, Nickler M, Bargetzi L, Hersberger L, Segerer S, Kaegi-Braun N, Tribolet P, Gomes F, Hoess C, Pavlicek V, Bilz S, Sigrist S, Brändle M, Henzen C, Thomann R, Rutishauser J, Aujesky D, Rodondi N, Donzé J, Stanga Z, Mueller B, Schuetz P. Admission kidney function is a strong predictor for the response to nutritional support in patients at nutritional risk. Clin Nutr 2021; 40:2762-2771. [PMID: 33933742 DOI: 10.1016/j.clnu.2021.03.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/26/2021] [Accepted: 03/08/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Patients with chronic kidney disease (CKD) are at substantial risk of malnutrition, which negatively affects clinical outcomes. We investigated the association of kidney function assessed at hospital admission and effectiveness of nutritional support in hospitalized medical patients at risk of malnutrition. METHODS This is a secondary analysis of an investigator-initiated, randomized-controlled, Swiss multicenter trial (EFFORT) that compared individualised nutritional support with usual hospital food on clinical outcomes. We compared effects of nutritional support on mortality in subgroups of patients stratified according to kidney function at the time of hospital admission (estimated glomerular filtration rates [eGFR] <15, 15-29, 30-59, 60-89 and ≥ 90 ml/min/1.73 m2). RESULTS We included 1943 of 2028 patients (96%) from the original trial with known admission creatinine levels. Admission eGFR was a strong predictor for the beneficial effects of nutritional support in regard to lowering of 30-day mortality. Patients with an eGFR <15, 15-29 and 30-59 had the strongest mortality benefit (odds ratios [95%CI] of 0.24 [0.05 to 1.25], 0.37 [0.14 to 0.95] and 0.39 [0.21 to 0.75], respectively), while patients with less severe impairment in kidney function had a less pronounced mortality benefits (p for interaction 0.001). A similar stepwise association of kidney function and response to nutritional support was found also for other secondary outcomes. CONCLUSION In medical inpatients at nutritional risk, admission kidney function was a strong predictor for the response to nutritional therapy. Initial kidney function may help to individualize nutritional support in the future by identification of patients with most clinical benefit. CLINICAL TRIAL REGISTRATION Registered under ClinicalTrials.gov Identifier no. NCT02517476.
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Affiliation(s)
- Annika Bargetzi
- Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland; Medical Faculty of the University of Basel, Switzerland
| | | | | | - Manuela Nickler
- Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland; Division of Nephrology, Kantonsspital Aarau, Aarau, Switzerland
| | - Laura Bargetzi
- Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland; Medical Faculty of the University of Basel, Switzerland
| | - Lara Hersberger
- Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland; Medical Faculty of the University of Basel, Switzerland
| | - Stephan Segerer
- Division of Nephrology, Kantonsspital Aarau, Aarau, Switzerland
| | - Nina Kaegi-Braun
- Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland
| | - Pascal Tribolet
- Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland; Department of Health Professions, Bern University of Applied Sciences, Bern, Switzerland
| | - Filomena Gomes
- Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland; The New York Academy of Sciences, New York City, NY, USA
| | - Claus Hoess
- Internal Medicine, Kantonsspital Muensterlingen, Switzerland
| | | | - Stefan Bilz
- Internal Medicine & Endocrinology/Diabetes, Kantonsspital St.Gallen, Switzerland
| | - Sarah Sigrist
- Internal Medicine & Endocrinology/Diabetes, Kantonsspital St.Gallen, Switzerland
| | - Michael Brändle
- Internal Medicine & Endocrinology/Diabetes, Kantonsspital St.Gallen, Switzerland
| | | | | | | | - Drahomir Aujesky
- Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Switzerland
| | - Nicolas Rodondi
- Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Switzerland; Institute of Primary Health Care (BIHAM), University of Bern, Switzerland
| | - Jacques Donzé
- Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Switzerland; Division of General Internal Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Zeno Stanga
- Division of Diabetes, Endocrinology, Nutritional Medicine & Metabolism, Inselspital, Bern University Hospital, University of Bern, Switzerland
| | - Beat Mueller
- Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland; Medical Faculty of the University of Basel, Switzerland
| | - Philipp Schuetz
- Medical University Department, Division of General Internal and Emergency Medicine, Kantonsspital Aarau, Aarau, Switzerland; Medical Faculty of the University of Basel, Switzerland.
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Traditional Chinese Patent Medicine for Primary Hypertension: A Bayesian Network Meta-Analysis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:6701272. [PMID: 32382302 PMCID: PMC7196995 DOI: 10.1155/2020/6701272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 03/16/2020] [Indexed: 12/25/2022]
Abstract
Background Traditional Chinese Patent Medicine (TCPM) is now being used more and more extensively for primary hypertension in China. However, the comparative efficacy and safety of it need more clarified evidence. Thus, we conducted a Bayesian network meta-analysis to compare TCPMs with other interventions. Methods We searched China National Knowledge Infrastructure (CNKI), WanFang Data, PubMed, Embase, and Cochrane Library from inception to April 2019 for randomized controlled trials (RCTs) with diagnosis of primary hypertension that compared the efficacy of TCPMs with antihypertension drugs (ADs). Two researchers screened literature, extracted data, and evaluated risk of bias independently. The primary outcomes were systolic blood pressure (SBP) and diastolic blood pressure (DBP). The secondary outcomes were adverse effects (AEs), total cholesterol (TC), and triglyceride (TG). We used the Bayesian network meta-analysis to compare interventions and described the categorical variable and the continuous variable as odds ratio (OR) and mean difference (MD), respectively. Besides, we ranked all interventions via the Surface Under the Cumulative Ranking (SUCRA) values and conducted metaregression with nine covariates as additional analysis. Results We included 192 studies with 23366 patients diagnosed as primary hypertension in total. For SBP reduction, eighteen interventions were significantly better than AD. Among them, Yinxingye (YXY) + AD (MD = −12, 95% CrI [−16, −8.5]) was superior to others in the rank plot with SUCRA 0.91. For DBP reduction, sixteen interventions were significantly better than AD. Among them, Qinggan Jiangya (QGJY) + AD (MD = −8.7, 95% CrI [−12, −5.5]) and Qiju Dihuang (QJDH) + AD (MD = −8.8, 95% CrI [−12, −5.2]) were superior to others in the rank plot with SUCRA 0.89. To summarize the SUCRA values, we found that QGJY + AD and YXY + AD had the most significant reductions for both SBP and DBP. YXY + AD was the best one for both TC (MD = −1.3, 95% CrI [−1.9, −0.64]) and TG (MD = −0.52, 95% CrI [−0.92, −0.11]) reductions. Considering adverse effects, we found two interventions had significant differences comparing with AD. Among them, YXY + AD was the best one with SUCRA of 0.01. Conclusion In all TCPMs, QGJY + AD and YXY + AD may be the best options for hypertension. Meanwhile, YXY + AD can improve blood lipids in patients with hypertension. However, due to the vague reports of adverse effects and other limitations, more evidence, especially that provided by high-quality studies, is needed to prove the advantages of TCMPs.
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