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Park CH, Kim HW, Park JT, Chang TI, Yoo TH, Park SK, Lee KB, Jung JY, Jeong JC, Oh KH, Kang SW, Han SH. Association between progression of coronary artery calcification and development of kidney failure with replacement therapy: Findings from KNOW-CKD study. Atherosclerosis 2024; 395:117563. [PMID: 38692977 DOI: 10.1016/j.atherosclerosis.2024.117563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/02/2024] [Accepted: 04/18/2024] [Indexed: 05/03/2024]
Abstract
BACKGROUND AND AIMS High coronary artery calcification (CAC) burden is a significant risk factor for adverse cardiovascular and kidney outcomes. However, it is unknown whether changes in the coronary atherosclerotic burden can accompany changes in kidney disease progression. Here, we evaluated the relationship between CAC progression and the risk of kidney failure with replacement therapy (KFRT). METHODS We analyzed 1173 participants with chronic kidney disease (CKD) G1 to G5 without kidney replacement therapy from the KoreaN Cohort Study for Outcomes in Patients With Chronic Kidney Disease (KNOW-CKD). Participants were categorized into three groups according to the change in the CAC score between enrollment and year 4 (non-progressors, ≤0 AU; moderate progressors, 1-199 AU; and severe progressors, ≥200 AU). The primary outcome was the development of KFRT. RESULTS During a follow-up period of 4690 person-years (median, 4.2 years), the primary outcome occurred in 230 (19.6 %) participants. The incidence of KFRT was 37.6, 54.3, and 80.9 per 1000 person-years in the non-, moderate, and severe progressors, respectively. In the multivariable cause-specific hazard model, the hazard ratios (HRs) for the moderate and severe progressors were 1.71 (95 % confidence interval [CI], 1.02-2.87) and 2.55 (95 % CI, 1.07-6.06), respectively, compared with non-progressors. A different definition of CAC progression with a threshold of 100 AU yielded similar results in a sensitivity analysis. CONCLUSIONS CAC progression is associated with an increased risk of KFRT in patients with CKD. Our findings suggest that coronary atherosclerosis changes increase the risk of CKD progression.
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Affiliation(s)
- Cheol Ho Park
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyung Woo Kim
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung Tak Park
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Tae Ik Chang
- Department of Internal Medicine, National Health Insurance Service Medical Center, Ilsan Hospital, Goyang, Republic of Korea
| | - Tae-Hyun Yoo
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sue Kyung Park
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kyu Beck Lee
- Division of Nephrology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Ji Yong Jung
- Division of Nephrology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Jong Cheol Jeong
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Republic of Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Kidney Research Institute, Seoul, Republic of Korea
| | - Shin-Wook Kang
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seung Hyeok Han
- Department of Internal Medicine, Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Republic of Korea.
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Jung CY, Yun HR, Park JT, Joo YS, Kim HW, Yoo TH, Kang SW, Lee J, Chae DW, Chung W, Kim YS, Oh KH, Han SH. Association of coronary artery calcium with adverse cardiovascular outcomes and death in patients with chronic kidney disease: results from the KNOW-CKD. Nephrol Dial Transplant 2023; 38:712-721. [PMID: 35689669 DOI: 10.1093/ndt/gfac194] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND In East Asian countries, patients with chronic kidney disease (CKD) have lower cardiovascular risk profiles and experience fewer cardiovascular events (CVEs) than those in Western countries. Thus the clinical predictive performance of well-known risk factors warrants further testing in this population. METHODS The KoreaN cohort study for Outcome in patients With Chronic Kidney Disease (KNOW-CKD) is a multicenter, prospective observational study. We included 1579 participants with CKD G1-G5 without kidney replacement therapy between 2011 and 2016. The main predictor was the coronary artery calcium score (CACS). The primary outcome was a composite of nonfatal CVEs or all-cause mortality. Secondary outcomes included 3-point major adverse cardiovascular events (MACEs; the composite of cardiovascular death, nonfatal myocardial infarction, or nonfatal stroke), all CVEs and all-cause mortality. RESULTS During a median follow-up of 5.1 years, a total of 123 primary outcome events occurred (incidence rate 1.6/100 person-years). In the multivariable Cox model, a 1-standard deviation log increase in the CACS was associated with a 1.67-fold [95% confidence interval (CI), 1.37-2.04] higher risk of the primary outcome. Compared with a CACS of 0, the hazard ratio associated with a CACS >400 was 4.89 (95% CI 2.68-8.93) for the primary outcome. This association was consistent for secondary outcomes. Moreover, inclusion of the CACS led to modest improvements in prediction indices of the primary outcome compared with well-known conventional risk factors. CONCLUSIONS In Korean patients with CKD, the CACS was independently associated with adverse cardiovascular outcomes and all-cause death. The CACS also showed modest improvements in prediction performance over conventional cardiovascular risk factors.
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Affiliation(s)
- Chan-Young Jung
- Department of Internal Medicine, Yonsei University College of Medicine, Institute of Kidney Disease Research, Seoul, Republic of Korea
| | - Hae-Ryong Yun
- Department of Internal Medicine, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, Republic of Korea
| | - Jung Tak Park
- Department of Internal Medicine, Yonsei University College of Medicine, Institute of Kidney Disease Research, Seoul, Republic of Korea
| | - Young Su Joo
- Department of Internal Medicine, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, Republic of Korea
| | - Hyung Woo Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Institute of Kidney Disease Research, Seoul, Republic of Korea
| | - Tae-Hyun Yoo
- Department of Internal Medicine, Yonsei University College of Medicine, Institute of Kidney Disease Research, Seoul, Republic of Korea
| | - Shin-Wook Kang
- Department of Internal Medicine, Yonsei University College of Medicine, Institute of Kidney Disease Research, Seoul, Republic of Korea
| | - Joongyub Lee
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Dong-Wan Chae
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Wookyung Chung
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Yong-Soo Kim
- Department of Internal Medicine, Catholic University of Korea, College of Medicine, Seoul, Republic of Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University, College of Medicine, Seoul, Republic of Korea
| | - Seung Hyeok Han
- Department of Internal Medicine, Yonsei University College of Medicine, Institute of Kidney Disease Research, Seoul, Republic of Korea
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Liu Q, Yu L, Yin X, Ye J, Li S. Correlation Between Soluble Klotho and Vascular Calcification in Chronic Kidney Disease: A Meta-Analysis and Systematic Review. Front Physiol 2021; 12:711904. [PMID: 34483963 PMCID: PMC8414804 DOI: 10.3389/fphys.2021.711904] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/14/2021] [Indexed: 11/29/2022] Open
Abstract
Background: The correlation between soluble Klotho (sKlotho) level and vascular calcification (VC) in patients with chronic kidney disease (CKD) remains controversial. Using meta-analysis, we aimed to address this controversy and assess the feasibility of applying sKlotho as a biomarker for VC. Methods: Medical electronic databases were thoroughly searched for eligible publications on the association between sKlotho level and VC in CKD patients. Effectors, including correlation coefficients (r), odds ratios (ORs), hazard ratio (HR) or β-values, and 95% confidence intervals (CIs) were extracted and combined according to study design or effector calculation method. Pooled effectors were generated using both random-effects models and fixed-effects models according to I 2-value. Origin of heterogeneity was explored by sensitivity analysis and subgroup analysis. Results: Ten studies with 1,204 participants from a total of 1,199 publications were eligible and included in this meta-analysis. The combined correlation coefficient (r) was [-0.33 (-0.62, -0.04)] with significant heterogeneity (I 2 = 89%, p < 0.001) based on Spearman correlation analysis, and this significant association was also demonstrated in subgroups. There was no evidence of publication bias. The combined OR was [3.27 (1.70, 6.30)] with no evidence of heterogeneity (I 2 = 0%, p = 0.48) when sKlotho was treated as a categorical variable or [1.05 (1.01, 1.09)] with moderate heterogeneity (I 2 = 63%, p = 0.10) when sKlotho was treated as a continuous variable based on multivariate logistic regression. No significant association was observed and the pooled OR was [0.29 (0.01, 11.15)] with high heterogeneity (I 2 = 96%, p < 0.001) according to multivariate linear regression analysis. There was an inverse association between sKlotho and parathyroid hormone levels. The combined coefficient (r) was [-0.20 (-0.40, -0.01)] with significant heterogeneity (I 2 = 86%, p < 0.001), and without obvious publication bias. No significant association was found between sKlotho and calcium or phosphate levels. Conclusion: There exists a significant association between decreased sKlotho level and increased risk of VC in CKD patients. This raises the possibility of applying sKlotho as a biomarker for VC in CKD populations. Large, prospective, well-designed studies or interventional clinical trials are required to validate our findings.
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Affiliation(s)
- QiFeng Liu
- Department of Nephrology, Affiliated Kunshan Hospital of Jiangsu University, Kunshan, China
| | - LiXia Yu
- Department of Nephrology, Affiliated Kunshan Hospital of Jiangsu University, Kunshan, China
| | - XiaoYa Yin
- Department of Nephrology, Affiliated Kunshan Hospital of Jiangsu University, Kunshan, China
| | - JianMing Ye
- Department of Nephrology, Affiliated Kunshan Hospital of Jiangsu University, Kunshan, China
| | - ShaSha Li
- Clinical Research & Lab Centre, Affiliated Kunshan Hospital of Jiangsu University, Kunshan, China
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Prognostic significance of peritoneal dialysis effluent mitochondrial DNA level. Clin Chim Acta 2021; 519:1-9. [PMID: 33826951 DOI: 10.1016/j.cca.2021.03.028] [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: 02/08/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Mitochondrial DNA (mtDNA) resembles bacterial DNA and potentially triggers local and systemic inflammation. We evaluate the prognostic implications of PD effluent mtDNA level in peritoneal dialysis (PD) patients. METHODS We measured mtDNA in the PD effluent (PDE) sediment and supernatant of 168 incident PD patients. All patients were followed for hospitalization, technique and overall survival. RESULTS The median PD effluent supernatant and sediment mtDNA levels were 255.4 unit (interquartile range [IQR] 157.5-451.3) and 201.6 unit (IQR 147.8-267.3), respectively. Serum C-reactive protein level closely with PDE sediment mtDNA level (r = 0.471, p < 0.001) and less with supernatant mtDNA level (r = 0.156, p = 0.044). PDE supernatant mtDNA level correlates with dialysate-to-plasma creatinine ratio at 4 h (D/P4) (r = 0.361, p < 0.001) but not with any clinical outcome. PDE sediment mtDNA was an independent predictor of technique survival (p = 0.011) and the duration of hospitalization (p = 0.044) after adjusting for clinical confounding factors. CONCLUSIONS PDE sediment mtDNA level significantly correlated with systemic inflammation, while PDE supernatant mtDNA level correlated with peritoneal transport. PDE sediment mtDNA level also independently predicted technique survival and duration of hospitalization. The mechanism of the different implications between PDE sediment and supernatant mtDNA levels deserves further investigations.
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Rapp N, Evenepoel P, Stenvinkel P, Schurgers L. Uremic Toxins and Vascular Calcification-Missing the Forest for All the Trees. Toxins (Basel) 2020; 12:E624. [PMID: 33003628 PMCID: PMC7599869 DOI: 10.3390/toxins12100624] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 09/22/2020] [Accepted: 09/25/2020] [Indexed: 12/23/2022] Open
Abstract
The cardiorenal syndrome relates to the detrimental interplay between the vascular system and the kidney. The uremic milieu induced by reduced kidney function alters the phenotype of vascular smooth muscle cells (VSMC) and promotes vascular calcification, a condition which is strongly linked to cardiovascular morbidity and mortality. Biological mechanisms involved include generation of reactive oxygen species, inflammation and accelerated senescence. A better understanding of the vasotoxic effects of uremic retention molecules may reveal novel avenues to reduce vascular calcification in CKD. The present review aims to present a state of the art on the role of uremic toxins in pathogenesis of vascular calcification. Evidence, so far, is fragmentary and limited with only a few uremic toxins being investigated, often by a single group of investigators. Experimental heterogeneity furthermore hampers comparison. There is a clear need for a concerted action harmonizing and standardizing experimental protocols and combining efforts of basic and clinical researchers to solve the complex puzzle of uremic vascular calcification.
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MESH Headings
- Animals
- Cardio-Renal Syndrome/metabolism
- Cardio-Renal Syndrome/pathology
- Cardio-Renal Syndrome/physiopathology
- Cardio-Renal Syndrome/therapy
- Humans
- Kidney/metabolism
- Kidney/pathology
- Kidney/physiopathology
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/physiopathology
- Prognosis
- Renal Insufficiency, Chronic/metabolism
- Renal Insufficiency, Chronic/pathology
- Renal Insufficiency, Chronic/physiopathology
- Renal Insufficiency, Chronic/therapy
- Toxins, Biological/metabolism
- Uremia/metabolism
- Uremia/pathology
- Uremia/physiopathology
- Uremia/therapy
- Vascular Calcification/metabolism
- Vascular Calcification/pathology
- Vascular Calcification/physiopathology
- Vascular Calcification/therapy
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Affiliation(s)
- Nikolas Rapp
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 ER Maastricht, The Netherlands;
| | - Pieter Evenepoel
- Laboratory of Nephrology, KU Leuven Department of Microbiology and Immunology, University Hospitals Leuven, 3000 Leuven, Belgium;
| | - Peter Stenvinkel
- Karolinska Institute, Department of Clinical Science, Intervention and Technology, Division of Renal Medicine, 141 86 Stockholm, Sweden;
| | - Leon Schurgers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 ER Maastricht, The Netherlands;
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Gregg LP, Tio MC, Li X, Adams-Huet B, de Lemos JA, Hedayati SS. Association of Monocyte Chemoattractant Protein-1 with Death and Atherosclerotic Events in Chronic Kidney Disease. Am J Nephrol 2018; 47:395-405. [PMID: 29874658 DOI: 10.1159/000488806] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 03/23/2018] [Indexed: 01/22/2023]
Abstract
BACKGROUND Monocyte chemoattractant protein-1 -(MCP-1), a marker of inflammation and monocyte recruitment to atherosclerotic plaques, is associated with cardiovascular (CV) outcomes in patients with acute coronary syndrome. Although plasma levels are elevated in chronic kidney disease (CKD), associations with reduced kidney function or outcomes in CKD have not been explored. METHODS In this population-based, probability-sampled, longitudinal cohort of 3,257 participants, including 286 (8.8%) patients with CKD, we studied the association of plasma MCP-1 with estimated glomerular filtration rate (eGFR), albuminuria, death, and intermediate and hard CV outcomes in CKD and non-CKD individuals. Cox proportional hazards regression assessed associations of baseline MCP-1 with all-cause death and atherosclerotic events. RESULTS MCP-1 was higher in CKD than non-CKD participants (p < 0.001), and negatively associated with eGFR (r = -0.23, p < 0.0001) but not albuminuria in CKD. MCP-1 was associated with pulse wave velocity and coronary artery calcification in non-CKD but not CKD individuals. At 13.5 years, there were 230 (7.7%) deaths and 168 (6.4%) atherosclerotic events in the non-CKD vs. 97 (34.0%) deaths and 62 (27.9%) events in the CKD group (p < 0.001 for each). MCP-1 was associated with death (hazards ratio [HR] 2.0 [1.4-2.9] per log-unit increase) and atherosclerotic events (1.7 [1.0-2.9]) in CKD individuals. The HR for death in CKD remained significant (1.6 [1.1-2.3]) after adjusting for CV risk factors. CONCLUSIONS Although plasma MCP-1 increased with decreased eGFR, it remained an independent risk factor for death in CKD. MCP-1 did not correlate with intermediate CV outcomes, implicating pathways other than atherosclerosis in the association of MCP-1 with death in CKD.
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Affiliation(s)
- L Parker Gregg
- Division of Nephrology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
- Division of Nephrology, Medical Service, Veterans Affairs North Texas Health Care System, Dallas, Texas, USA
| | - Maria Clarissa Tio
- Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Xilong Li
- Division of Biostatistics, Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Beverley Adams-Huet
- Division of Biostatistics, Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - James A de Lemos
- Division of Cardiology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - S Susan Hedayati
- Division of Nephrology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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Gregg LP, Adams-Huet B, Li X, Colbert G, Jain N, de Lemos JA, Hedayati SS. Effect Modification of Chronic Kidney Disease on the Association of Circulating and Imaging Cardiac Biomarkers With Outcomes. J Am Heart Assoc 2017; 6:JAHA.116.005235. [PMID: 28679558 PMCID: PMC5586272 DOI: 10.1161/jaha.116.005235] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background Cardiac troponin T and brain natriuretic peptide (BNP) are elevated in >50% of dialysis patients and are associated with poor outcomes. Few data investigated these associations in earlier chronic kidney disease (CKD). Methods and Results We studied whether CKD modified associations of elevated BNP, N‐terminal‐pro‐BNP, high‐sensitivity cardiac troponin T, coronary artery calcification, and left ventricular hypertrophy with all‐cause death and cardiovascular death/events in 3218 multiethnic individuals followed for 12.5 years, and whether biomarkers added prognostic information to traditional cardiovascular risk factors in CKD. Of the cohort, 279 (9%) had CKD. There were 296 deaths and 218 cardiovascular deaths/events. Of non‐CKD individuals, 7% died and 6% had cardiovascular death/event versus 32% and 30% of CKD participants, P<0.001 for both. The interaction between BNP and CKD on death was significant (P=0.01): the adjusted hazard ratio in CKD was 2.05, 95% CI (1.34, 3.14), but not significant in non‐CKD, 1.04 (0.76, 1.41). CKD modified the association of high‐sensitivity cardiac troponin T with cardiovascular death/event, adjusted hazard ratio 3.34 (1.56, 7.18) in CKD versus 1.65 (1.16, 2.35) in non‐CKD, interaction P=0.09. There was an interaction between N‐terminal‐pro‐BNP and CKD for death in those without prior cardiovascular disease. Addition of each biomarker to traditional risk factors improved risk prediction, except coronary artery calcification was not discriminatory for cardiovascular death/event in CKD. Conclusions Cardiac biomarkers, with the exception of coronary artery calcification, prognosticated outcomes in early‐stage CKD as well as, if not better than, in non‐CKD individuals, even after controlling for estimated glomerular filtration rate, and added to information obtained from traditional cardiovascular risk factors alone.
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Affiliation(s)
- L Parker Gregg
- Division of Nephrology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, TX
| | - Beverley Adams-Huet
- Division of Biostatistics, Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, TX
| | - Xilong Li
- Division of Biostatistics, Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, TX
| | - Gates Colbert
- Division of Nephrology, Department of Medicine, Baylor University Medical Center, Dallas, TX
| | - Nishank Jain
- Division of Nephrology, Department of Medicine, University of Arkansas, Little Rock, AR
| | - James A de Lemos
- Division of Cardiology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, TX
| | - S Susan Hedayati
- Division of Nephrology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, TX .,Division of Nephrology, Medical Service, Veterans Affairs North Texas Health Care System, Dallas, TX
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8
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Chen J, Budoff MJ, Reilly MP, Yang W, Rosas SE, Rahman M, Zhang X, Roy JA, Lustigova E, Nessel L, Ford V, Raj D, Porter AC, Soliman EZ, Wright JT, Wolf M, He J. Coronary Artery Calcification and Risk of Cardiovascular Disease and Death Among Patients With Chronic Kidney Disease. JAMA Cardiol 2017; 2:635-643. [PMID: 28329057 PMCID: PMC5798875 DOI: 10.1001/jamacardio.2017.0363] [Citation(s) in RCA: 215] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 12/03/2016] [Indexed: 12/23/2022]
Abstract
Importance Coronary artery calcification (CAC) is highly prevalent in dialysis-naive patients with chronic kidney disease (CKD). However, there are sparse data on the association of CAC with subsequent risk of cardiovascular disease and all-cause mortality in this population. Objective To study the prospective association of CAC with risk of cardiovascular disease and all-cause mortality among dialysis-naive patients with CKD. Design, Setting, and Participants The prospective Chronic Renal Insufficiency Cohort study recruited adults with an estimated glomerular filtration rate of 20 to 70 mL/min/1.73 m2 from 7 clinical centers in the United States. There were 1541 participants without cardiovascular disease at baseline who had CAC scores. Exposures Coronary artery calcification was assessed using electron-beam or multidetector computed tomography. Main Outcomes and Measures Incidence of cardiovascular disease (including myocardial infarction, heart failure, and stroke) and all-cause mortality were reported every 6 months and confirmed by medical record adjudication. Results During an average follow-up of 5.9 years in 1541 participants aged 21 to 74 years, there were 188 cardiovascular disease events (60 cases of myocardial infarction, 120 heart failures, and 27 strokes; patients may have had >1 event) and 137 all-cause deaths. In Cox proportional hazards models adjusted for age, sex, race, clinical site, education level, physical activity, total cholesterol level, high-density lipoprotein cholesterol level, systolic blood pressure, use of antihypertensive treatment, current cigarette smoking, diabetes status, body mass index, C-reactive protein level, hemoglobin A1c level, phosphorus level, troponin T level, log N-terminal pro-B-type natriuretic peptide level, fibroblast growth factor 23 level, estimated glomerular filtration rate, and proteinuria, the hazard ratios associated with per 1 SD log of CAC were 1.40 (95% CI, 1.16-1.69; P < .001) for cardiovascular disease, 1.44 (95% CI, 1.02-2.02; P = .04) for myocardial infarction, 1.39 (95% CI, 1.10-1.76; P = .006) for heart failure, and 1.19 (95% CI, 0.94-1.51; P = .15) for all-cause mortality. In addition, inclusion of CAC score led to an increase in the C statistic of 0.02 (95% CI, 0-0.09; P < .001) for predicting cardiovascular disease over use of all the above-mentioned established and novel cardiovascular disease risk factors. Conclusions and Relevance Coronary artery calcification is independently and significantly related to the risks of cardiovascular disease, myocardial infarction, and heart failure in patients with CKD. In addition, CAC improves risk prediction for cardiovascular disease, myocardial infarction, and heart failure over use of established and novel cardiovascular disease risk factors among patients with CKD; however, the changes in the C statistic are small.
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Affiliation(s)
- Jing Chen
- Department of Medicine, School of Medicine, Tulane University, New Orleans, Louisiana
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
| | | | - Muredach P. Reilly
- Department of Medicine, Division of Cardiology, Columbia University, New York, New York
| | - Wei Yang
- Department of Biostatistics and Epidemiology, School of Medicine, University of Pennsylvania, Philadelphia
| | - Sylvia E. Rosas
- Joslyn Diabetic Center, Harvard Medical School, Boston, Massachusetts
| | - Mahboob Rahman
- Department of Medicine, University Hospitals of Case Western Reserve University, Cleveland, Ohio
| | - Xiaoming Zhang
- Department of Biostatistics and Epidemiology, School of Medicine, University of Pennsylvania, Philadelphia
| | - Jason A. Roy
- Department of Biostatistics and Epidemiology, School of Medicine, University of Pennsylvania, Philadelphia
| | - Eva Lustigova
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
| | - Lisa Nessel
- Department of Biostatistics and Epidemiology, School of Medicine, University of Pennsylvania, Philadelphia
| | - Virginia Ford
- Department of Medicine, School of Medicine, University of Pennsylvania, Philadelphia
| | - Dominic Raj
- Department of Medicine, School of Medicine, George Washington University, Washington, DC
| | - Anna C. Porter
- Department of Medicine, University of Illinois Hospital and Health Sciences System, Chicago
| | - Elsayed Z. Soliman
- Department of Medicine, School of Medicine, Wake Forest University, Winston-Salem, North Carolina
| | - Jackson T. Wright
- Department of Medicine, University Hospitals of Case Western Reserve University, Cleveland, Ohio
| | - Myles Wolf
- Department of Medicine, School of Medicine, Duke University, Durham, North Carolina
| | - Jiang He
- Department of Medicine, School of Medicine, Tulane University, New Orleans, Louisiana
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
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Kirushnan BB, Rao BS, Annigeri R, Balasubramanian S, Seshadri R, Prakash KC, Vivek V. Impact of Malnutrition, Inflammation, and Atherosclerosis on the Outcome in Hemodialysis Patients. Indian J Nephrol 2017; 27:277-283. [PMID: 28761229 PMCID: PMC5514823 DOI: 10.4103/0971-4065.202830] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Malnutrition, inflammation, and atherosclerosis are significant problems in patients on hemodialysis. A prospective, observational study in 100 hemodialysis patients for 2 years was conducted. The primary outcomes were hospitalizations and mortality at the end of 2 years. The mean age was 61 ± 11.3 years and 69% were male. Seven patients did not complete the study (five underwent transplant and two were shifted to other units). Serum albumin was significantly lower in malnourished patients at 6 months from the beginning of the study period (3.58 vs. 3.79 g/dl, P = 0.001). Malnutrition based on subjective global assessment (SGA) was seen in 30 (32%) patients: mild to moderate in 27 (29%) and severe in 3 (3%). Inflammation was seen in 73 (78.5%) patients and intimal-medial thickness of >1.1 mm indicating significant atherosclerosis was seen in 73 (78.5%) patients. Modified SGA score and malnutrition-inflammation score (MIS) were significantly more in the malnourished group. Statistically significant association was seen between hospitalization and mortality in the malnourished population, and the odds ratio of death in malnourished patients was 9.83 (95% confidence interval: 2.8-34.3, P < 0.001). There was a moderate correlation between malnutrition assessed by modified SGA and MIS score (r = 0.54, P < 0.001). Mortality rate was 37% in patients with mild to moderate and 67% in severe malnutrition. Hospital admission was seen in 43 (46%) patients and was significantly more common in malnourished compared to well-nourished patients (77% vs. 32%, P < 0.001). Multiple logistic regression analysis showed that malnutrition by Modified SGA was the only significant variable associated with mortality at 2 years, and addition of MIS score did not improve the predictive ability of the model to modified SGA. We recommend the use of modified SGA and serial serum albumin to monitor nutrition in hemodialysis patients.
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Affiliation(s)
- B B Kirushnan
- Department of Nephrology, Apollo Hospitals, Chennai, Tamil Nadu, India
| | - B Subba Rao
- Department of Nephrology, Apollo Hospitals, Chennai, Tamil Nadu, India
| | - R Annigeri
- Department of Nephrology, Apollo Hospitals, Chennai, Tamil Nadu, India
| | - S Balasubramanian
- Department of Nephrology, Apollo Hospitals, Chennai, Tamil Nadu, India
| | - R Seshadri
- Department of Nephrology, Apollo Hospitals, Chennai, Tamil Nadu, India
| | - K C Prakash
- Department of Nephrology, Apollo Hospitals, Chennai, Tamil Nadu, India
| | - V Vivek
- Department of Nephrology, Apollo Hospitals, Chennai, Tamil Nadu, India
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10
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David C, Bover J, Voiculet C, Peride I, Petcu LC, Niculae A, Covic A, Checherita IA. Coronary risk score for mineral bone disease in chronic non-diabetic hemodialysis patients: results from a prospective pilot study. Int Urol Nephrol 2016; 49:689-700. [DOI: 10.1007/s11255-016-1481-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 12/07/2016] [Indexed: 12/27/2022]
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11
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Kuźniewski M, Fedak D, Dumnicka P, Stępień E, Kuśnierz-Cabala B, Cwynar M, Sułowicz W. Osteoprotegerin and osteoprotegerin/TRAIL ratio are associated with cardiovascular dysfunction and mortality among patients with renal failure. Adv Med Sci 2016; 61:269-275. [PMID: 27128817 DOI: 10.1016/j.advms.2016.03.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 01/06/2016] [Accepted: 03/04/2016] [Indexed: 12/15/2022]
Abstract
PURPOSE The high prevalence of cardiovascular morbidity and mortality among patients with chronic kidney disease (CKD) is observed especially in those undergoing dialysis. Osteoprotegerin (OPG) and its ligands, receptor activator of nuclear factor kappa-B ligand (RANKL) and tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) have been associated with cardiovascular complications. Our aim was to study their role as cardiovascular risk factors in stage 5 CKD patients. PATIENTS AND METHODS OPG, RANKL and TRAIL concentrations were measured in 69 hemodialyzed CKD patients and 35 healthy volunteers. In CKD patients, cardiovascular dysfunction was assessed with aortic pulse wave velocity (AoPWV), carotid artery intima-media thickness (CCA-IMT), coronary artery calcium score (CACS) and N-terminal pro-B-type natriuretic peptide (NT-proBNP) serum concentrations. Cardiovascular and overall mortality data were collected during a 7-years follow-up. RESULTS OPG plasma concentrations were higher in CKD patients comparing to controls. Total soluble RANKL was lower and OPG/RANKL ratio higher in patients. Soluble TRAIL concentrations did not differ between the groups and OPG/TRAIL ratio was higher in CKD patients. OPG and OPG/TRAIL positively predicted long-term mortality (all-cause and cardiovascular) in CKD patients. OPG positively correlated with AoPWV, CCA-IMT and NT-proBNP whereas OPG/TRAIL with AoPWV and NT-proBNP. Described relationships were independent of classical and non-classical cardiovascular risk factors, with exception of age. CONCLUSIONS Our study confirmed the role of OPG as a biomarker of cardiovascular dysfunction and a predictor of mortality in stage 5 CKD. OPG/TRAIL ratio can be proposed as a predictor of cardiovascular dysfunction and mortality.
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Affiliation(s)
- Marek Kuźniewski
- Chair and Department of Nephrology, Jagiellonian University Medical College, Kraków, Poland
| | - Danuta Fedak
- Department of Diagnostics, Chair of Clinical Biochemistry, Jagiellonian University Medical College, Kraków, Poland
| | - Paulina Dumnicka
- Department of Medical Diagnostics, Jagiellonian University Medical College, Kraków, Poland.
| | - Ewa Stępień
- Department of Medical Physics, M. Smoluchowski Institute of Physics, Jagiellonian University, Kraków, Poland
| | - Beata Kuśnierz-Cabala
- Department of Diagnostics, Chair of Clinical Biochemistry, Jagiellonian University Medical College, Kraków, Poland
| | - Marcin Cwynar
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Kraków, Poland
| | - Władysław Sułowicz
- Chair and Department of Nephrology, Jagiellonian University Medical College, Kraków, Poland
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12
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Jiang M, Wang L, Xuan Q, Shao Y, Kong X, Sun W. Risk Factors Associated with Left-Sided Cardiac Valve Calcification: A Case Control Study. Cardiology 2016; 134:26-33. [PMID: 26841312 DOI: 10.1159/000443203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 12/08/2015] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To identify risk factors associated with cardiac valve calcification that is easily detectable through routine blood tests in patients who received valve replacement therapy. METHODS Four hundred patients with valvular heart disease who underwent valve replacement surgery between December 2009 and January 2013 were enrolled in this study. Of these, 77 had valve calcification; the other 323 did not. Multivariate logistic regression analysis was used to assess for risk factors associated with valve calcification. RESULTS In our study population, rheumatic valve lesions were the most common reason for valve replacement. Degenerative nonstenotic valve lesion was a protective factor and degenerative stenotic valve lesion was a strong risk factor for valve calcification. Serum levels of gamma-glutamyl transferase (GGT) of between 30 and 46 IU/l and >90 IU/l and total bilirubin (TBIL) of between 15 and 20 μmol/l were positively correlated with valve calcification. Meanwhile, serum calcium (Ca2+) levels of between 2.3 and 2.4 mmol/l were negatively correlated with rheumatic valve calcification. CONCLUSIONS Degenerative stenotic lesion is a risk factor and degenerative nonstenotic lesion a protective factor for cardiac valve calcification. Serum GGT and TBIL levels are positively correlated and serum Ca2+ levels negatively correlated with rheumatic cardiac valve calcification.
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Affiliation(s)
- Minyong Jiang
- Department of Cardiology, Jiangyin Hospital of Traditional Chinese Medicine, Jiangyin, PR China
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13
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Sederholm Lawesson S, Alfredsson J, Szummer K, Fredrikson M, Swahn E. Prevalence and prognostic impact of chronic kidney disease in STEMI from a gender perspective: data from the SWEDEHEART register, a large Swedish prospective cohort. BMJ Open 2015; 5:e008188. [PMID: 26105033 PMCID: PMC4480024 DOI: 10.1136/bmjopen-2015-008188] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
OBJECTIVES Gender differences in prevalence and prognostic impact of chronic kidney disease (CKD) in ST segment elevation myocardial infarction (STEMI) have been poorly evaluated. In STEMI, female gender has been independently associated with an increased risk of mortality. CKD has been found to be an important prognostic marker in myocardial infarction. The aim of this study was to evaluate gender differences in prevalence and prognostic impact of CKD on short-term and long-term mortality. DESIGN Prospective observational cohort study. SETTING The national quality register SWEDEHEART was used. In the beginning of the study period, 94% of the Swedish coronary care units contributed data to the register, which subsequently increased to 100%. The glomerular filtration rate was estimated (eGFR) according to Modification of Diet in Renal Disease Study (MDRD) and Cockcroft-Gault (CG). PARTICIPANTS All patients with STEMI registered in SWEDEHEART from the years 2003-2009 were included (37,991 patients, 66% men). MAIN RESULTS Women had 1.6 (MDRD) to 2.2 (CG) times higher multivariable adjusted risk of CKD. Half of the women had CKD according to CG. CKD was associated with 2-2.5 times higher risk of in-hospital mortality and approximately 1.5 times higher risk of long-term mortality in both genders. Each 10 mL/min decline of eGFR was associated with an increased risk of in-hospital and long-term mortality (22-33% and 9-16%, respectively) and this did not vary significantly by gender. Both in-hospital and long-term mortality were doubled in women. After multivariable adjustment including eGFR, there was no longer any gender difference in early outcome and the long-term outcome was better in women. CONCLUSIONS Among patients with STEMI, female gender was independently associated with CKD. Reduced eGFR was a strong independent risk factor for short-term and long-term mortality without a significant gender difference in prognostic impact and seems to be an important reason why women have higher mortality than men with STEMI.
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Affiliation(s)
- Sofia Sederholm Lawesson
- Department of Cardiology and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Joakim Alfredsson
- Department of Cardiology and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Karolina Szummer
- Department of Cardiology, Karolinska University Hospital, Huddinge, Institution of Medicine (H7), Karolinska Institutet, Stockholm, Sweden
| | - Mats Fredrikson
- Department of Clinical and Experimental Medicine Division of Occupational and Environmental Medicine and Forum Östergötland Faculty of Medicine and Health Sciences, Linköping University, Linköping,
| | - Eva Swahn
- Department of Cardiology and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
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14
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Gupta DK, de Lemos JA, Ayers CR, Berry JD, Wang TJ. Racial Differences in Natriuretic Peptide Levels: The Dallas Heart Study. JACC-HEART FAILURE 2015; 3:513-519. [PMID: 26071618 DOI: 10.1016/j.jchf.2015.02.008] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 02/13/2015] [Accepted: 02/14/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVES The purpose of this study was to assess whether N-terminal pro-B-type natriuretic peptide (NT-proBNP) levels differ according to race/ethnicity. BACKGROUND Natriuretic peptides (NP) are hormones with natriuretic, diuretic, and vasodilatory effects. Experimental NP deficiency promotes salt-sensitive hypertension and cardiac hypertrophy, conditions that are more common among black individuals. METHODS We examined plasma NT-proBNP levels according to race/ethnicity in 3,148 individuals (51% black, 31% white, 18% Hispanic) free of prevalent cardiovascular disease in the Dallas Heart Study. NT-proBNP values in the bottom sex-specific quartile were defined as low. Multivariable linear and logistic regression analyses were performed adjusting for clinical covariates and magnetic resonance imaging measurements of cardiac structure and function. RESULTS Hypertension was present in 41%, 25%, and 16% of black, white, and Hispanic individuals, respectively. Unadjusted NT-proBNP levels were lowest in black (median: 24 pg/ml; interquartile range [IQR]: 10 to 52 pg/ml) as compared with Hispanic (30 pg/ml; IQR: 14 to 59 pg/ml) and white individuals (32 pg/ml; IQR: 16 to 62 pg/ml), p < 0.0001. In multivariable-adjusted models, black individuals still had significantly lower NT-proBNP levels (-39% [95% confidence interval: -46% to -31%]; p < 0.0001) and greater odds of having low NT-proBNP (odds ratio: 2.46 [95% confidence interval: 1.86 to 3.26]), compared with white individuals. In contrast, NT-proBNP levels did not significantly differ between Hispanic and white individuals (p = 0.28). The finding of lower NT-proBNP levels in black individuals was similar when analyses were restricted to healthy participants without cardiovascular risk factors. CONCLUSIONS In this multiethnic cohort, NT-proBNP levels differ substantially according to race/ethnicity. Despite a higher prevalence of hypertension, black individuals had significantly lower NP levels than white and Hispanic individuals. A relative NP "deficiency" among black individuals may lead to greater susceptibility to salt retention and hypertension.
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Affiliation(s)
- Deepak K Gupta
- Vanderbilt Translational and Clinical Cardiovascular Research Center, Vanderbilt University Medical Center, Nashville, Tennessee; Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
| | - James A de Lemos
- Department of Internal Medicine, Division of Cardiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Colby R Ayers
- Department of Internal Medicine, Division of Cardiology, University of Texas Southwestern Medical Center, Dallas, Texas; Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Jarett D Berry
- Department of Internal Medicine, Division of Cardiology, University of Texas Southwestern Medical Center, Dallas, Texas; Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Thomas J Wang
- Vanderbilt Translational and Clinical Cardiovascular Research Center, Vanderbilt University Medical Center, Nashville, Tennessee; Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
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15
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Di Maira T, Rubin A, Puchades L, Aguilera V, Vinaixa C, Garcia M, De Maria N, Villa E, Lopez-Andujar R, San Juan F, Montalva E, Perez J, Prieto M, Berenguer M. Framingham score, renal dysfunction, and cardiovascular risk in liver transplant patients. Liver Transpl 2015; 21:812-22. [PMID: 27396823 DOI: 10.1002/lt.24128] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 03/11/2015] [Accepted: 03/14/2015] [Indexed: 12/12/2022]
Abstract
Cardiovascular (CV) events represent major impediments to the long-term survival of liver transplantation (LT) patients. The aim of this study was to assess whether the Framingham risk score (FRS) at transplantation can predict the development of post-LT cardiovascular events (CVEs). Patients transplanted between 2006 and 2008 were included. Baseline features, CV risk factors, and CVEs occurring after LT (ischemic heart disease, stroke, heart failure, de novo arrhythmias, and peripheral arterial disease) were recorded. In total, 250 patients (69.6% men) with a median age of 56 years (range, 18-68 years) were included. At transplantation, 34.4%, 34.4%, and 33.2% of patients, respectively, had a low, moderate, and high FRS with a median FRS of 14.9 (range, 0.09-30); 14.4% of LT recipients developed at least 1 CVE at a median of 2.619 years (range, 0.006-6.945 years). In the univariate analysis, factors associated with the development of CVEs were the continuous FRS at LT (P = 0.003), age (P = 0.007), creatinine clearance [estimated glomerular filtration rate (eGFR); P = 0.020], and mycophenolate mofetil use at discharge (P = 0.011). In the multivariate analysis, only the eGFR [hazard ratio (HR), 0.98; 95% confidence interval (CI), 0.97-1.00; P = 0.009] and FRS (HR, 1.06; 95% CI, 1.02-1.10; P = 0.002) remained in the model. Moreover, an association was also found between the FRS and overall survival (P = 0.004) with 5-year survival rates of 82.5%, 77.8%, and 61.4% for the low-, moderate-, and high-risk groups, respectively. Continuous FRS, eGFR, and hepatitis C virus infection were independent risk factors for overall mortality. In our series, the FRS and eGFR at LT were able to predict the development of post-LT CVEs and poor outcomes. Liver Transpl 21:812-822, 2015. © 2015 AASLD.
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Affiliation(s)
- Tommaso Di Maira
- Liver Transplantation and Hepatology Unit, La Fe Hospital, Valencia, Spain.,Gastroenterology Unit, Azienda Ospedaliero-Universitaria, University of Modena and Reggio Emilia, Modena, Italy
| | - Angel Rubin
- Liver Transplantation and Hepatology Unit, La Fe Hospital, Valencia, Spain
| | - Lorena Puchades
- Liver Transplantation and Hepatology Unit, La Fe Hospital, Valencia, Spain
| | - Victoria Aguilera
- Liver Transplantation and Hepatology Unit, La Fe Hospital, Valencia, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Valencia, Spain
| | - Carmen Vinaixa
- Liver Transplantation and Hepatology Unit, La Fe Hospital, Valencia, Spain
| | - Maria Garcia
- Liver Transplantation and Hepatology Unit, La Fe Hospital, Valencia, Spain
| | - Nicola De Maria
- Gastroenterology Unit, Azienda Ospedaliero-Universitaria, University of Modena and Reggio Emilia, Modena, Italy
| | - Erica Villa
- Gastroenterology Unit, Azienda Ospedaliero-Universitaria, University of Modena and Reggio Emilia, Modena, Italy
| | - Rafael Lopez-Andujar
- Hepatic Surgery and Liver Transplant Unit, and, La Fe University Hospital, Valencia, Spain
| | - Fernando San Juan
- Hepatic Surgery and Liver Transplant Unit, and, La Fe University Hospital, Valencia, Spain
| | - Eva Montalva
- Hepatic Surgery and Liver Transplant Unit, and, La Fe University Hospital, Valencia, Spain
| | - Judith Perez
- Department of Pathology and Anatomy, La Fe University Hospital, Valencia, Spain
| | - Martin Prieto
- Liver Transplantation and Hepatology Unit, La Fe Hospital, Valencia, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Valencia, Spain
| | - Marina Berenguer
- Liver Transplantation and Hepatology Unit, La Fe Hospital, Valencia, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Valencia, Spain.,Faculty of Medicine, University of Valencia, Valencia, Spain
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16
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Colbert G, Jain N, de Lemos JA, Hedayati SS. Utility of traditional circulating and imaging-based cardiac biomarkers in patients with predialysis CKD. Clin J Am Soc Nephrol 2015; 10:515-29. [PMID: 25403922 PMCID: PMC4348678 DOI: 10.2215/cjn.03600414] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Cardiac biomarkers, such as cardiac troponin T (cTnT), brain natriuretic peptide (BNP), and N-terminal-pro-BNP (NT-pro-BNP), are commonly used to diagnose acute coronary syndrome and congestive heart failure exacerbation in symptomatic patients. Levels of these biomarkers are frequently chronically elevated in asymptomatic patients with ESRD who are receiving maintenance dialysis. Other imaging biomarkers commonly encountered in nephrologists' clinical practice, such as coronary artery calcium measured by computed tomography, left ventricular hypertrophy, and carotid intima-media thickness, are also frequently abnormal in asymptomatic patients with ESRD. This article critically reviews the limited observational data on associations between cTnT, BNP, NT-pro-BNP, coronary artery calcium, left ventricular hypertrophy, and carotid intima-media thickness with cardiovascular events and death in non-dialysis-dependent patients with CKD. Although sufficient evidence suggests that these biomarkers may be used for prognostication, the diagnostic utility of cTnT, BNP, and NT-pro-BNP remain challenging in patients with CKD. Decreased renal clearance may affect the plasma levels of these biomarkers, and upper reference limits were originally derived in patients without CKD. Until better data are available, higher cutoffs, or a rise in level compared with previous values, have been proposed to help distinguish acute myocardial infarction from chronic elevations of cTnT in symptomatic patients with CKD. Additionally, it is not known whether these biomarkers are modifiable and amenable to interventions that could change hard clinical outcomes in patients with CKD not yet undergoing long-term dialysis.
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MESH Headings
- Biomarkers/blood
- Calcinosis/diagnostic imaging
- Carotid Intima-Media Thickness
- Coronary Artery Disease/complications
- Coronary Artery Disease/diagnostic imaging
- Humans
- Hypertrophy, Left Ventricular/blood
- Hypertrophy, Left Ventricular/complications
- Hypertrophy, Left Ventricular/diagnostic imaging
- Kidney Failure, Chronic/blood
- Kidney Failure, Chronic/complications
- Kidney Failure, Chronic/therapy
- Natriuretic Peptide, Brain/blood
- Peptide Fragments/blood
- Renal Dialysis
- Tomography, X-Ray Computed
- Troponin T/blood
- Ventricular Dysfunction, Left/blood
- Ventricular Dysfunction, Left/complications
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Affiliation(s)
| | | | - James A de Lemos
- Division of Cardiology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas; and
| | - S Susan Hedayati
- Division of Nephrology and Division of Nephrology, Medical Service, Veterans Affairs North Texas Health Care System, Dallas, Texas
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17
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Kwak SM, Kim JS, Choi Y, Chang Y, Kwon MJ, Jung JG, Jeong C, Ahn J, Kim HS, Shin H, Ryu S. Dietary intake of calcium and phosphorus and serum concentration in relation to the risk of coronary artery calcification in asymptomatic adults. Arterioscler Thromb Vasc Biol 2014; 34:1763-9. [PMID: 24925973 DOI: 10.1161/atvbaha.114.303440] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE The current data regarding the association between calcium and phosphorus and cardiovascular disease are lacking. The aim of this study was to explore whether dietary calcium and phosphorus intake and their serum levels are associated with the prevalence of coronary artery calcification (CAC) using cardiac computed tomography in asymptomatic participants without a history of chronic kidney disease or cardiovascular disease. APPROACH AND RESULTS A cross-sectional study was performed in 23 652 Korean participants (40.8±7.3 years, male 83.5%) without chronic kidney disease (estimated glomerular filtration rate≥60 mL/min per 1.73 m(2)) or clinically overt cardiovascular disease, who underwent cardiac computed tomographic estimation of CAC scores as part of a general health checkup in addition to completing a self-administered food frequency questionnaire. We assessed the relationship of dietary calcium and phosphorus intake and serum levels with CAC scores using both multivariate-adjusted Tobit models and multinomial logistic regression models. Neither dietary calcium nor phosphorus intake was consistently associated with CAC scores. However, the serum calcium, phosphorus, and calcium-phosphorus product levels were significantly associated with the CAC score ratios. In multivariable-adjusted models, the CAC score ratios (95% confidence intervals) comparing the highest quartiles of serum calcium, phosphorus, and calcium-phosphorus product levels to the lowest quartiles were 1.89 (1.36-2.64), 3.33 (2.55-4.35), and 3.98 (3.00-5.28), respectively (P for trend <0.001). CONCLUSIONS Elevated serum levels of calcium, phosphorus, and calcium-phosphorus product, but not dietary consumption, are associated with increased CAC scores. Our findings should be explored in further research.
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Affiliation(s)
- Sang Mi Kwak
- From the Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea (S.M.K., Y. Choi, Y. Chang, M.-J.K., C.J., J.A., H.S.K., H.S., S.R.); Department of Family Medicine, School of Medicine, Graduate School, Chungnam National University, Daejeon, Republic of Korea (S.M.K., J.S.K., J.-G.J.); Research Institute for Medical Sciences, Chungnam National University, School of Medicine, Daejeon, Republic of Korea (J.S.K., J.-G.J.); and Department of Occupational and Environmental Medicine (Y. Chang, C.J., S.R.), Department of Laboratory Medicine (M.-J.K.), Department of Anesthesiology and Pain Medicine (H.S.K.), and Department of Family Medicine (H.S.), Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea
| | - Jong Sung Kim
- From the Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea (S.M.K., Y. Choi, Y. Chang, M.-J.K., C.J., J.A., H.S.K., H.S., S.R.); Department of Family Medicine, School of Medicine, Graduate School, Chungnam National University, Daejeon, Republic of Korea (S.M.K., J.S.K., J.-G.J.); Research Institute for Medical Sciences, Chungnam National University, School of Medicine, Daejeon, Republic of Korea (J.S.K., J.-G.J.); and Department of Occupational and Environmental Medicine (Y. Chang, C.J., S.R.), Department of Laboratory Medicine (M.-J.K.), Department of Anesthesiology and Pain Medicine (H.S.K.), and Department of Family Medicine (H.S.), Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea.
| | - Yuni Choi
- From the Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea (S.M.K., Y. Choi, Y. Chang, M.-J.K., C.J., J.A., H.S.K., H.S., S.R.); Department of Family Medicine, School of Medicine, Graduate School, Chungnam National University, Daejeon, Republic of Korea (S.M.K., J.S.K., J.-G.J.); Research Institute for Medical Sciences, Chungnam National University, School of Medicine, Daejeon, Republic of Korea (J.S.K., J.-G.J.); and Department of Occupational and Environmental Medicine (Y. Chang, C.J., S.R.), Department of Laboratory Medicine (M.-J.K.), Department of Anesthesiology and Pain Medicine (H.S.K.), and Department of Family Medicine (H.S.), Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea
| | - Yoosoo Chang
- From the Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea (S.M.K., Y. Choi, Y. Chang, M.-J.K., C.J., J.A., H.S.K., H.S., S.R.); Department of Family Medicine, School of Medicine, Graduate School, Chungnam National University, Daejeon, Republic of Korea (S.M.K., J.S.K., J.-G.J.); Research Institute for Medical Sciences, Chungnam National University, School of Medicine, Daejeon, Republic of Korea (J.S.K., J.-G.J.); and Department of Occupational and Environmental Medicine (Y. Chang, C.J., S.R.), Department of Laboratory Medicine (M.-J.K.), Department of Anesthesiology and Pain Medicine (H.S.K.), and Department of Family Medicine (H.S.), Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea
| | - Min-Jung Kwon
- From the Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea (S.M.K., Y. Choi, Y. Chang, M.-J.K., C.J., J.A., H.S.K., H.S., S.R.); Department of Family Medicine, School of Medicine, Graduate School, Chungnam National University, Daejeon, Republic of Korea (S.M.K., J.S.K., J.-G.J.); Research Institute for Medical Sciences, Chungnam National University, School of Medicine, Daejeon, Republic of Korea (J.S.K., J.-G.J.); and Department of Occupational and Environmental Medicine (Y. Chang, C.J., S.R.), Department of Laboratory Medicine (M.-J.K.), Department of Anesthesiology and Pain Medicine (H.S.K.), and Department of Family Medicine (H.S.), Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea
| | - Jin-Gyu Jung
- From the Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea (S.M.K., Y. Choi, Y. Chang, M.-J.K., C.J., J.A., H.S.K., H.S., S.R.); Department of Family Medicine, School of Medicine, Graduate School, Chungnam National University, Daejeon, Republic of Korea (S.M.K., J.S.K., J.-G.J.); Research Institute for Medical Sciences, Chungnam National University, School of Medicine, Daejeon, Republic of Korea (J.S.K., J.-G.J.); and Department of Occupational and Environmental Medicine (Y. Chang, C.J., S.R.), Department of Laboratory Medicine (M.-J.K.), Department of Anesthesiology and Pain Medicine (H.S.K.), and Department of Family Medicine (H.S.), Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea
| | - Chul Jeong
- From the Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea (S.M.K., Y. Choi, Y. Chang, M.-J.K., C.J., J.A., H.S.K., H.S., S.R.); Department of Family Medicine, School of Medicine, Graduate School, Chungnam National University, Daejeon, Republic of Korea (S.M.K., J.S.K., J.-G.J.); Research Institute for Medical Sciences, Chungnam National University, School of Medicine, Daejeon, Republic of Korea (J.S.K., J.-G.J.); and Department of Occupational and Environmental Medicine (Y. Chang, C.J., S.R.), Department of Laboratory Medicine (M.-J.K.), Department of Anesthesiology and Pain Medicine (H.S.K.), and Department of Family Medicine (H.S.), Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea
| | - Jiin Ahn
- From the Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea (S.M.K., Y. Choi, Y. Chang, M.-J.K., C.J., J.A., H.S.K., H.S., S.R.); Department of Family Medicine, School of Medicine, Graduate School, Chungnam National University, Daejeon, Republic of Korea (S.M.K., J.S.K., J.-G.J.); Research Institute for Medical Sciences, Chungnam National University, School of Medicine, Daejeon, Republic of Korea (J.S.K., J.-G.J.); and Department of Occupational and Environmental Medicine (Y. Chang, C.J., S.R.), Department of Laboratory Medicine (M.-J.K.), Department of Anesthesiology and Pain Medicine (H.S.K.), and Department of Family Medicine (H.S.), Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea
| | - Hyun Soo Kim
- From the Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea (S.M.K., Y. Choi, Y. Chang, M.-J.K., C.J., J.A., H.S.K., H.S., S.R.); Department of Family Medicine, School of Medicine, Graduate School, Chungnam National University, Daejeon, Republic of Korea (S.M.K., J.S.K., J.-G.J.); Research Institute for Medical Sciences, Chungnam National University, School of Medicine, Daejeon, Republic of Korea (J.S.K., J.-G.J.); and Department of Occupational and Environmental Medicine (Y. Chang, C.J., S.R.), Department of Laboratory Medicine (M.-J.K.), Department of Anesthesiology and Pain Medicine (H.S.K.), and Department of Family Medicine (H.S.), Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea
| | - Hocheol Shin
- From the Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea (S.M.K., Y. Choi, Y. Chang, M.-J.K., C.J., J.A., H.S.K., H.S., S.R.); Department of Family Medicine, School of Medicine, Graduate School, Chungnam National University, Daejeon, Republic of Korea (S.M.K., J.S.K., J.-G.J.); Research Institute for Medical Sciences, Chungnam National University, School of Medicine, Daejeon, Republic of Korea (J.S.K., J.-G.J.); and Department of Occupational and Environmental Medicine (Y. Chang, C.J., S.R.), Department of Laboratory Medicine (M.-J.K.), Department of Anesthesiology and Pain Medicine (H.S.K.), and Department of Family Medicine (H.S.), Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea
| | - Seungho Ryu
- From the Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea (S.M.K., Y. Choi, Y. Chang, M.-J.K., C.J., J.A., H.S.K., H.S., S.R.); Department of Family Medicine, School of Medicine, Graduate School, Chungnam National University, Daejeon, Republic of Korea (S.M.K., J.S.K., J.-G.J.); Research Institute for Medical Sciences, Chungnam National University, School of Medicine, Daejeon, Republic of Korea (J.S.K., J.-G.J.); and Department of Occupational and Environmental Medicine (Y. Chang, C.J., S.R.), Department of Laboratory Medicine (M.-J.K.), Department of Anesthesiology and Pain Medicine (H.S.K.), and Department of Family Medicine (H.S.), Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Republic of Korea.
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Zhou S, Fang X, Xin H, Li W, Qiu H, Guan S. Osteoprotegerin inhibits calcification of vascular smooth muscle cell via down regulation of the Notch1-RBP-Jκ/Msx2 signaling pathway. PLoS One 2013; 8:e68987. [PMID: 23874840 PMCID: PMC3711585 DOI: 10.1371/journal.pone.0068987] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 06/03/2013] [Indexed: 01/06/2023] Open
Abstract
Objective Vascular calcification is a common pathobiological process which occurs among
the elder population and in patients with diabetes and chronic kidney
disease. Osteoprotegerin, a secreted glycoprotein that regulates bone mass,
has recently emerged as an important regulator of the development of
vascular calcification. However, the mechanism is not fully understood. The
purpose of this study is to explore novel signaling mechanisms of
osteoprotegerin in the osteoblastic differentiation in rat aortic vascular
smooth muscle cells (VSMCs). Methods and Results VSMCs were isolated from thoracic aorta of Sprague Dawley rats. Osteoblastic
differentiation of VSMCs was induced by an osteogenic medium. We confirmed
by Von Kossa staining and direct cellular calcium measurement that
mineralization was significantly increased in VSMCs cultured in osteogenic
medium; consistent with an enhanced alkaline phosphatase activity. This
osteoblastic differentiation in VSMCs was significantly reduced by the
addition of osteoprotegerin in a dose responsive manner. Moreover, we
identified, by real-time qPCR and western blotting, that expression of
Notch1 and RBP-Jκ were significantly up-regulated in VSMCs cultured in
osteogenic medium at both the mRNA and protein levels, these effects were
dose-dependently abolished by the treatment of osteoprotegerin. Furthermore,
we identified that Msx2, a downstream target of the Notch1/RBP-Jκ signaling,
was markedly down-regulated by the treatment of osteoprotegerin. Conclusion Osteoprotegerin inhibits vascular calcification through the down regulation
of the Notch1-RBP-Jκ signaling pathway.
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Affiliation(s)
- Shaoqiong Zhou
- Department of Gerontology, Union Hospital, Tongji Medical College,
Huazhong University of Science and Technology, Wuhan, China
| | - Xing Fang
- Department of Gerontology, Union Hospital, Tongji Medical College,
Huazhong University of Science and Technology, Wuhan, China
| | - Huaping Xin
- Department of Gerontology, Union Hospital, Tongji Medical College,
Huazhong University of Science and Technology, Wuhan, China
| | - Wei Li
- Department of Gerontology, Union Hospital, Tongji Medical College,
Huazhong University of Science and Technology, Wuhan, China
| | - Hongyu Qiu
- Department of Cell Biology and Molecular Medicine, New Jersey Medical
School, University of Medicine and Dentistry of New Jersey (UMDNJ), Newark, New
Jersey, United States of America
- * E-mail:
(SG); (HQ)
| | - Siming Guan
- Department of Gerontology, Union Hospital, Tongji Medical College,
Huazhong University of Science and Technology, Wuhan, China
- * E-mail:
(SG); (HQ)
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19
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Yuan J, Guo Q, Qureshi AR, Anderstam B, Eriksson M, Heimbürger O, Bárány P, Stenvinkel P, Lindholm B. Circulating vascular endothelial growth factor (VEGF) and its soluble receptor 1 (sVEGFR-1) are associated with inflammation and mortality in incident dialysis patients. Nephrol Dial Transplant 2013; 28:2356-63. [PMID: 23828162 DOI: 10.1093/ndt/gft256] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Vascular endothelial growth factor (VEGF) and its soluble receptor 1 (sVEGFR-1) predict mortality in nondialyzed chronic kidney disease (CKD) stage 3-5 patients and prevalent hemodialysis (HD) patients. We investigated determinants of VEGF and sVEGFR-1 as well as their relationship with all-cause mortality in incident dialysis patients. METHODS In this longitudinal cohort study of 211 CKD 5 patients [64% males, mean age of 54 ± 12 years and median glomerular filtration rate (GFR) 5.9 [interquartile range (IQR), 4.6-7.2 mL/min/1.73 m2] who were enrolled at initiation of renal replacement therapy, demographics, clinical characteristics, including comorbidities and laboratory data were obtained at the beginning of the study. After 12 months, blood was again drawn from 95 dialysis patients [42 HD patients and 53 peritoneal dialysis (PD) patients]. The 211 patients were followed up for a median of 29 (IQR, 15-37) months for survival analysis. Plasma was also obtained from 47 healthy controls. RESULTS VEGF and sVEGFR-1 levels did not change significantly after 12 months on HD or PD. The sVEGFR-1, but not VEGF levels, differed between the patients and the healthy controls. VEGF and sVEGFR-1 correlated with high-sensitivity C-reactive protein (hsCRP; rho = 0.19, P = 0.01 and rho = 0.16, P = 0.03; respectively), leukocyte count (rho = 0.22; P < 0.01 and rho = 0.23; P < 0.01; respectively) and sVEGFR-1 correlated also with interleukin-6 (IL-6) (rho = 0.21, P < 0.01). In Kaplan-Meier analysis, a high VEGF level was associated with increased all-cause mortality (Chi-square = 5.8, P = 0.02) which remained after adjustments for age, gender, body mass index (BMI), IL-6, GFR and comorbidities [hazard ratio, HR: 3.08, 95% confidence intervals (CI) 1.48-6.42]. Whereas sVEGFR-1 per se did not predict mortality, a high sVEGFR-1 level in patients with concomitant high IL-6 was associated with increased all-cause mortality (HR 2.83, 95% CI 1.32-6.06) which remained significant after adjustments for age, gender, BMI and comorbidities (HR 2.33, 95% CI 1.06-5.14) but not after adjusting also for GFR. CONCLUSIONS The circulating levels of VEGF and sVEGFR-1 are associated with biomarkers of inflammation. VEGF predicts all-cause mortality, independent of inflammation, while an elevated sVEGFR-1 level increased the mortality risk in inflamed patients.
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Affiliation(s)
- Jiangzi Yuan
- Renal Medicine and Baxter Novum, Karolinska Institutet, Stockholm, Sweden
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20
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Zhang X, Eirin A, Lerman A, Lerman LO. Osteopontin: an emerging therapeutic target in uraemic vascular disease. Cardiovasc Res 2013; 98:332-3. [PMID: 23612585 DOI: 10.1093/cvr/cvt098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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21
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Zhou Q, Wu S, Jiang J, Tian J, Chen J, Yu X, Chen P, Mei C, Xiong F, Shi W, Zhou W, Liu X, Sun S, Xie DI, Liu J, Xu X, Liang M, Hou F. Accumulation of circulating advanced oxidation protein products is an independent risk factor for ischaemic heart disease in maintenance haemodialysis patients. Nephrology (Carlton) 2013; 17:642-9. [PMID: 22738256 DOI: 10.1111/j.1440-1797.2012.01640.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
AIM Whether the burden of advanced oxidation protein products (AOPP) accumulation, a marker of oxidative stress, is affected by dialysis modality remains unclear. We compared the serum levels of AOPP in patients on haemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD) and tested the hypothesis that an accumulation of AOPP was an independent risk factor for cardiovascular disease. METHODS This was a cross-section study. A total of 2095 patients (1539 HD, 556 CAPD) were recruited from the nine largest dialysis centres in China. Persons in medical centres for disease screening were selected as controls. Patients maintained on HD were dialyzed twice or thrice weekly. CAPD patients used lactate-buffered, glucose-containing solutions. The patients' data were abstracted from the medical record. The serum levels of AOPP were determined by spectrophotometric detection. RESULTS The levels of AOPP were significantly elevated in both HD and CAPD patients compared to healthy controls. Accumulation of AOPP was more significant in HD compared to CAPD population. Meanwhile, AOPP accumulation was associated with the presence of ischaemic heart disease (IHD) only in HD, but not CAPD patients. A higher proportion of IHD was found in the HD population among those with higher levels of AOPP in each category of age and irrespective of the presence or absence of high triglyceride. Multivariate regression analysis indicated that accumulation of AOPP was an independent risk factor for IHD in HD population. CONCLUSION Accumulation of AOPP was more significant in HD compared to CAPD patients. The level of AOPP was independently associated with IHD only in HD patients.
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Affiliation(s)
- Qiugen Zhou
- Key Lab for Organ Failure Research, Ministry of Education, Division of Nephrology, Nanfang Hospital, Guangzhou, China
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22
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He J, Reilly M, Yang W, Chen J, Go AS, Lash JP, Rahman M, DeFilippi C, Gadegbeku C, Kanthety R, Tao K, Hamm LL, Ojo A, Townsend R, Budoff M. Risk factors for coronary artery calcium among patients with chronic kidney disease (from the Chronic Renal Insufficiency Cohort Study). Am J Cardiol 2012; 110:1735-41. [PMID: 22980963 DOI: 10.1016/j.amjcard.2012.07.044] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 07/30/2012] [Accepted: 07/30/2012] [Indexed: 01/17/2023]
Abstract
Cardiovascular disease is the leading cause of death in patients with chronic kidney disease (CKD). We examined the cross-sectional association between novel risk factors and coronary artery calcium (CAC) measured using electron beam computed tomography or multidetector computed tomography among 2,018 patients with CKD. Using the total Agatston scores, the participants were classified as having no (0), moderate (>0-100), or high (>100) CAC. After adjustment for age, gender, race, study sites, cigarette smoking, previous cardiovascular disease, hypertension, and diabetes, the use of lipid-lowering drugs, body mass index, waist circumference, and cystatin C, several novel risk factors were significantly associated with high CAC. For example, the odds ratios of high CAC associated with 1 SD greater level of risk factors were 1.20 (95% confidence interval 1.04 to 1.38) for serum calcium, 1.21 (95% confidence interval 1.04 to 1.41) for serum phosphate, 0.83 (95% confidence interval 0.71 to 0.97) for log (total parathyroid hormone), 1.21 (95% confidence interval 1.03 to 1.43) for log (homeostasis model assessment-insulin resistance), and 1.23 (95% confidence interval 1.04 to 1.45) for hemoglobin A1c. Additionally, the multivariate-adjusted odds ratio for 1 SD greater level of cystatin C was 1.31 (95% confidence interval 1.14 to 1.50). Serum high-sensitive C-reactive protein, interleukin-6, tumor necrosis factor-α, and homocysteine were not statistically significantly associated with high CAC. In conclusion, these data indicate that abnormal calcium and phosphate metabolism, insulin resistance, and declining kidney function are associated with the prevalence of high CAC, independent of the traditional risk factors in patients with CKD. Additional studies are warranted to examine the causal effect of these risk factors on CAC in patients with CKD.
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Yamamoto S, Yancey PG, Ikizler TA, Jerome WG, Kaseda R, Cox B, Bian A, Shintani A, Fogo AB, Linton MF, Fazio S, Kon V. Dysfunctional high-density lipoprotein in patients on chronic hemodialysis. J Am Coll Cardiol 2012; 60:2372-9. [PMID: 23141484 DOI: 10.1016/j.jacc.2012.09.013] [Citation(s) in RCA: 126] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Revised: 09/05/2012] [Accepted: 09/05/2012] [Indexed: 12/24/2022]
Abstract
OBJECTIVES This study examined the functionality of high-density lipoprotein (HDL) in individuals with end-stage renal disease on dialysis (ESRD-HD). BACKGROUND The high rate of cardiovascular disease (CVD) in chronic kidney disease is not explained by standard risk factors, especially in patients with ESRD-HD who appear resistant to benefits of statin therapy. HDL is antiatherogenic because it extracts tissue cholesterol and reduces inflammation. METHODS Cellular cholesterol efflux and inflammatory response were assessed in macrophages exposed to HDL of patients with ESRD-HD or controls. RESULTS HDL from patients with ESRD-HD was dramatically less effective than normal HDL in accepting cholesterol from macrophages (median 6.9%; interquartile range [IQR]: 1.4% to 10.2%) versus control (median 14.9%; IQR: 9.8% to 17.8%; p < 0.001). The profound efflux impairment was also seen in patients with ESRD-HD and diabetes compared with patients with diabetes without renal disease (median 8.1%; IQR: 3.3% to 12.9%) versus control (median 13.6%; IQR: 11.0% to 15.9%; p = 0.009). In vitro activation of cellular cholesterol transporters increased cholesterol efflux to both normal and uremic HDL. HDL of patients with ESRD-HD had reduced antichemotactic ability and increased macrophage cytokine response (tumor necrosis factor-alpha, interleukin-6, and interleukin-1-beta). HDL of patients with ESRD-HD on statin therapy had reduced inflammatory response while maintaining impaired cholesterol acceptor function. Interestingly, impaired HDL-mediated efflux did not correlate with circulating C-reactive protein levels or cellular inflammatory response. CONCLUSIONS These findings suggest that abnormal HDL capacity to mediate cholesterol efflux is a key driver of excess CVD in patients on chronic hemodialysis and may explain why statins have limited effect to decrease CV events. The findings also suggest cellular cholesterol transporters as potential therapeutic targets to decrease CV risk in this population.
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Affiliation(s)
- Suguru Yamamoto
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
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Weiner DE, Carpenter MA, Levey AS, Ivanova A, Cole EH, Hunsicker L, Kasiske BL, Kim SJ, Kusek JW, Bostom AG. Kidney function and risk of cardiovascular disease and mortality in kidney transplant recipients: the FAVORIT trial. Am J Transplant 2012; 12:2437-45. [PMID: 22594581 PMCID: PMC3424309 DOI: 10.1111/j.1600-6143.2012.04101.x] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In kidney transplant recipients, cardiovascular disease (CVD) is the leading cause of death. The relationship of kidney function with CVD outcomes in transplant recipients remains uncertain. We performed a post hoc analysis of the Folic Acid for Vascular Outcome Reduction in Transplantation (FAVORIT) Trial to assess risk factors for CVD and mortality in kidney transplant recipients. Following adjustment for demographic, clinical and transplant characteristics, and traditional CVD risk factors, proportional hazards models were used to explore the association of estimated GFR with incident CVD and all-cause mortality. In 4016 participants, mean age was 52 years and 20% had prior CVD. Mean eGFR was 49 ± 18 mL/min/1.73 m(2) . In 3676 participants with complete data, there were 527 CVD events over a median of 3.8 years. Following adjustment, each 5 mL/min/1.73 m(2) higher eGFR at levels below 45 mL/min/1.73 m(2) was associated with a 15% lower risk of both CVD [HR = 0.85 (0.80, 0.90)] and death [HR = 0.85 (0.79, 0.90)], while there was no association between eGFR and outcomes at levels above 45 mL/min/1.73 m(2) . In conclusion, in stable kidney transplant recipients, lower eGFR is independently associated with adverse events, suggesting that reduced kidney function itself rather than preexisting comorbidity may lead to CVD.
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Affiliation(s)
| | | | | | | | | | | | - Bertram L Kasiske
- Hennepin County Medical Center and the University of Minnesota, Minneapolis, MN
| | | | - John W Kusek
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD
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Zhou QG, Fu XJ, Xu GY, Cao W, Liu HF, Nie J, Liang M, Hou FF. Vascular insulin resistance related to endoplasmic reticulum stress in aortas from a rat model of chronic kidney disease. Am J Physiol Heart Circ Physiol 2012; 303:H1154-65. [PMID: 22942179 DOI: 10.1152/ajpheart.00407.2012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Metabolic insulin resistance has been demonstrated in patients with nondiabetic chronic kidney disease (CKD), yet their vascular insulin signaling remains poorly understood. Here we tested the hypothesis that vascular insulin signaling was impaired and related with endoplasmic reticulum (ER) stress in aortas from the reduced renal mass (RRM) model of CKD. The activity of insulin signaling and markers of ER were determined in aortas from rats with RRM and cultured human umbilical vein endothelial cells. Tyrosine phosphorylation of insulin receptor-β and insulin receptor substrate (IRS)-1 and phosphorylation of protein kinase B and endothelial nitric oxide synthase were all decreased in aorta from RRM rats, whereas serine phosphorylation of IRS-1, a marker of insulin resistance, was increased. In addition, nitric oxide generation and insulin-mediated vasorelaxation were decreased in aortas from RRM rats. Insulin signaling in cultured vascular endothelial cells was impaired by induction of ER stress and was restored in aortas of RRM rats by inhibition of ER stress. Taken together, rats with RRM had vascular insulin resistance that was linked to ER stress. This identified vascular insulin resistance and ER stress as a potential therapeutic target for cardiovascular complications in patients with CKD.
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Affiliation(s)
- Qiu Gen Zhou
- Division of Nephrology, Nanfang Hospital, Southern Medical University, Key Lab for Organ Failure Research, Ministry of Education, Guangzhou, China
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Hou F, Jiang J, Chen J, Yu X, Zhou Q, Chen P, Mei C, Xiong F, Shi W, Zhou W, Liu X, Sun S, Xie D, Liu J, Zhang P, Yang X, Zhang Y, Zhang Y, Liang X, Zhang Z, Lin Q, Yu Y, Wu S, Xu X. China collaborative study on dialysis: a multi-centers cohort study on cardiovascular diseases in patients on maintenance dialysis. BMC Nephrol 2012; 13:94. [PMID: 22935444 PMCID: PMC3502162 DOI: 10.1186/1471-2369-13-94] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Accepted: 08/27/2012] [Indexed: 11/22/2022] Open
Abstract
Background Cardiovascular disease (CVD) is the main cause of death in patients on chronic dialysis. The question whether dialysis modality impacts cardiovascular risk remains to be addressed. China Collaborative Study on Dialysis, a multi-centers cohort study, was performed to evaluate cardiovascular morbidity during maintenance hemodialysis (HD) and peritoneal dialysis (PD). Method The cohort consisted of chronic dialysis patients from the database of 9 of the largest dialysis facilities around China. The inclusion period was between January 1, 2005, and December 1, 2010. Cardiovascular morbidity was defined as the presence of clinically diagnosed ischemic heart disease, heart failure, peripheral vascular disease, and/or stroke. The patients who had cardiovascular morbidity before initiation of dialysis were excluded. Data collection was based on review of medical record. Result A total of 2,388 adult patients (1,775 on HD and 613 on PD) were enrolled. Cardiovascular morbidity affected 57% patients and was comparable between HD and PD patients. However, clinically diagnosed ischemic heart disease and stroke was more prevalent in PD than HD patients. When the patients were stratified by age or dialysis vintage, the cardiovascular morbidity was significantly higher in PD than HD among those aged 50 years or older, or those receiving dialysis over 36 months. Multivariate analysis revealed that the risk factors for cardiovascular morbidity had different pattern in PD and HD patients. Hyperglycemia was the strongest risk factor for cardiovascular morbidity in PD, but not in HD patients. Hypertriglyceridemia and hypoalbuminemia were independently associated with CVD only in PD patients. Conclusions Cardiovascular morbidity during chronic dialysis was more prevalent in PD than HD patients among those with old age and long-term dialysis. Metabolic disturbance-related risk factors were independently associated with CVD only in PD patients. Better understanding the impact of dialysis modality on CVD would be an important step for prevention and treatment.
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Affiliation(s)
- Fanfan Hou
- Division of Nephrology, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou 510515, China.
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Schmitt CP, Mehls O. Mineral and bone disorders in children with chronic kidney disease. Nat Rev Nephrol 2011; 7:624-34. [PMID: 21947120 DOI: 10.1038/nrneph.2011.139] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
As children with chronic kidney disease (CKD) have a long lifespan, optimal control of bone and mineral homeostasis is essential not only for the prevention of debilitating skeletal complications and for achieving adequate growth but also for preserving long-term cardiovascular health. As the growing skeleton is highly dynamic and at particular risk of deterioration, close control of bone and mineral homeostasis is required in children with CKD. However, assessment of bone disease is hampered by the limited validity of biochemical parameters-major controversy exists on key issues such as parathyroid hormone target ranges and the lack of useful imaging techniques. The role of newly discovered factors in bone and mineral homeostasis, such as fibroblast growth factor 23, is not yet established. Even though scientific evidence is limited in children with CKD, ergocalciferol or cholecalciferol supplementation and the use of calcium-free phosphate binders is recommended. The new drug cinacalcet is highly promising; however, pediatric experience is still limited to observational data and the effect of cinacalcet on longitudinal growth and pubertal development is unknown. Randomized, controlled trials are underway, including studies of cinacalcet pharmacokinetics and pharmacodynamics in infants.
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Affiliation(s)
- Claus Peter Schmitt
- Division of Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, INF 430, University of Heidelberg, 69120 Heidelberg, Germany.
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Calcium supplementation: lessons from the general population for chronic kidney disease and back. Curr Opin Nephrol Hypertens 2011; 20:369-75. [DOI: 10.1097/mnh.0b013e328347486a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ferraro PM, Lupo A, Yabarek T, Graziani MS, Bonfante L, Abaterusso C, Gambaro G. Metabolic syndrome, cardiovascular disease, and risk for chronic kidney disease in an Italian cohort: analysis of the INCIPE study. Metab Syndr Relat Disord 2011; 9:381-8. [PMID: 21711121 DOI: 10.1089/met.2011.0040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Metabolic syndrome is a frequent condition that has been linked to cardiovascular disease (CVD) and mortality. Metabolic syndrome has been extensively shown to increase the risk of chronic nephropathies in Americans and Asians, but not in European populations. Renal disease increases the risk of CVD and mortality. However, the chronic nephropathy-CVD liaison has not been analyzed in the framework of the possible role of metabolic syndrome in both. METHODS We analyzed data from 3,757 subjects participating in the INCIPE survey (Initiative on Nephropathy, of relevance to public health, which is Chronic, possibly in its Initial stages, and carries a Potential risk of major clinical End-points), a cross-sectional study enrolling subjects from the general population in the Veneto region in Italy, and calculated the odds ratio (OR) and 95% confidence interval (CI) of the association between metabolic syndrome, and/or chronic kidney disease (CKD) and albuminuria, and/or previous CVD after adjustment for confounding factors. RESULTS Metabolic syndrome is associated with CKD (OR 2.17; P<0.001) and albuminuria (OR 2.28; P<0.001) and CVD (OR 1.58; P=0.002). There is a direct correlation between number of metabolic syndrome traits and nephropathy and CVD. CVD and nephropathies are associated even after adjustment for metabolic syndrome (OR 2.30; P<0.001). CONCLUSIONS In a homogeneous Caucasian European population, metabolic syndrome is associated with CKD and albuminuria, and CVD. Although metabolic syndrome is a risk factor for both CVD and nephropathy, it does not entirely explain the dangerous CVD-nephropathy liaison.
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Affiliation(s)
- Pietro Manuel Ferraro
- Division of Nephrology and Dialysis, Institute of Internal Medicine and Medical Specialties, Columbus-Gemelli University Hospital, Renal Program, Catholic University, Rome, Italy
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Hu MC, Shi M, Zhang J, Quiñones H, Griffith C, Kuro-o M, Moe OW. Klotho deficiency causes vascular calcification in chronic kidney disease. J Am Soc Nephrol 2011; 22:124-36. [PMID: 21115613 PMCID: PMC3014041 DOI: 10.1681/asn.2009121311] [Citation(s) in RCA: 693] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2009] [Accepted: 09/03/2010] [Indexed: 12/12/2022] Open
Abstract
Soft-tissue calcification is a prominent feature in both chronic kidney disease (CKD) and experimental Klotho deficiency, but whether Klotho deficiency is responsible for the calcification in CKD is unknown. Here, wild-type mice with CKD had very low renal, plasma, and urinary levels of Klotho. In humans, we observed a graded reduction in urinary Klotho starting at an early stage of CKD and progressing with loss of renal function. Despite induction of CKD, transgenic mice that overexpressed Klotho had preserved levels of Klotho, enhanced phosphaturia, better renal function, and much less calcification compared with wild-type mice with CKD. Conversely, Klotho-haploinsufficient mice with CKD had undetectable levels of Klotho, worse renal function, and severe calcification. The beneficial effect of Klotho on vascular calcification was a result of more than its effect on renal function and phosphatemia, suggesting a direct effect of Klotho on the vasculature. In vitro, Klotho suppressed Na(+)-dependent uptake of phosphate and mineralization induced by high phosphate and preserved differentiation in vascular smooth muscle cells. In summary, Klotho is an early biomarker for CKD, and Klotho deficiency contributes to soft-tissue calcification in CKD. Klotho ameliorates vascular calcification by enhancing phosphaturia, preserving glomerular filtration, and directly inhibiting phosphate uptake by vascular smooth muscle. Replacement of Klotho may have therapeutic potential for CKD.
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Affiliation(s)
- Ming Chang Hu
- Charles and Jane Pak Center for Mineral Metabolism and Clinical Research, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8885, USA.
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Coen G, Pierantozzi A, Spizzichino D, Sardella D, Mantella D, Manni M, Pellegrino L, Romagnoli A, Pacifici R, Zuccaro P, Digiulio S. Risk factors of one year increment of coronary calcifications and survival in hemodialysis patients. BMC Nephrol 2010; 11:10. [PMID: 20565936 PMCID: PMC2903573 DOI: 10.1186/1471-2369-11-10] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Accepted: 06/21/2010] [Indexed: 12/25/2022] Open
Abstract
Background Heart and coronary calcifications in hemodialysis patients are of very common occurrence and linked to cardiovascular events and mortality. Several studies have been published with similar results. Most of them were mainly cross-sectional and some of the prospective protocols were aimed to evaluate the results of the control of altered biochemical parameters of mineral disturbances with special regard to serum calcium, phosphate and CaxP with the use of calcium containing and calcium free phosphate chelating agents. The aim of the present study was to evaluate in hemodialysis patients classic and some non classic risk factors as predictors of calcification changes after one year and to evaluate the impact of progression on survival. Methods 81 patients on hemodialysis were studied, with a wide age range and HD vintage. Several classic parameters and some less classic risk factors were studied like fetuin-A, CRP, 25-OHD and leptin. Calcifications, as Agatston scores, were evaluated with Multislice CT basally and after 12-18 months. Results Coronary artery calcifications were observed in 71 of 81 patients. Non parametric correlations between Agatston scores and Age, HD Age, PTH and CRP were significant. Delta increments of Agatston scores correlated also with serum calcium, CaxP, Fetuin-A, triglycerides and serum albumin. Logistic regression analysis showed Age, PTH and serum calcium as important predictors of Delta Agatston scores. LN transformation of the not normally distributed variables restricted the significant correlations to Age, BMI and CRP. Considering the Delta Agatston scores as dependent, significant predictors were Age, PTH and HDL. A strong association was found between basal calcification scores and Delta increment at one year. By logistic analysis, the one year increments in Agatston scores were found to be predictors of mortality. Diabetic and hypertensive patients have significantly higher Delta scores. Conclusions Progression of calcification is of common occurrence, with special regard to elevated basal scores, and is predictive of survival. Higher predictive value of survival is linked to the one year increment of calcification scores. Some classic and non classic risk factors play an important role in progression. Some of them could be controlled with appropriate management with possible improvement of mortality.
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Affiliation(s)
- Giorgio Coen
- Nephrology and Hypertension Unit, Ospedale Israelitico, Rome, Italy.
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Min JK, Lin FY, Gidseg DS, Weinsaft JW, Berman DS, Shaw LJ, Rozanski A, Callister TQ. Determinants of Coronary Calcium Conversion Among Patients With a Normal Coronary Calcium Scan. J Am Coll Cardiol 2010; 55:1110-7. [DOI: 10.1016/j.jacc.2009.08.088] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2009] [Revised: 08/17/2009] [Accepted: 08/24/2009] [Indexed: 01/07/2023]
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Nakamura S, Ishibashi-Ueda H, Niizuma S, Yoshihara F, Horio T, Kawano Y. Coronary calcification in patients with chronic kidney disease and coronary artery disease. Clin J Am Soc Nephrol 2009; 4:1892-900. [PMID: 19833908 DOI: 10.2215/cjn.04320709] [Citation(s) in RCA: 167] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND OBJECTIVES A close linkage between chronic kidney disease (CKD) and cardiovascular disease (CVD) has been demonstrated. Coronary artery calcification (CAC) is considered to be the causal link connecting them. The aim of the study is to determine the relationship between level of kidney function and the prevalence of CAC. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Autopsy subjects known to have coronary artery disease and a wide range of kidney function were studied. Patients without CKD were classified into five groups depending on estimated GFR (eGFR) and proteinuria: eGFR > or =60 ml/min/1.73 m(2) without proteinuria; CKD1/2: eGFR > or =60 ml/min/1.73 m(2) with proteinuria; CKD3: 60 ml/min/1.73 m(2) >eGFR > or =30 ml/min/1.73 m(2); CKD4/5: eGFR <30 ml/min/1.73 m(2); and CKD5D: on hemodialysis. Intimal and medial calcification of the coronary arteries was evaluated. Risk factors for CVD and uremia were identified as relevant to CAC using logistic regression analysis. RESULTS Intimal calcification of plaques was present in all groups, but was most frequent and severe in the CKD5D group and less so in the CKD4/5 and CKD3 groups. Risk factors included luminal stenosis, age, smoking, diabetes, calcium-phosphorus product, inflammation, and kidney function. Medial calcification was seen in a small number of CKD4/5 and CKD5D groups. Risk factors were use of calcium-containing phosphate binders, hemodialysis treatment, and duration. CONCLUSIONS It was concluded that CAC was present in the intimal plaque of both nonrenal and renal patients. Renal function and traditional risks were linked to initimal calcification. Medial calcification occurred only in CKD patients.
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Affiliation(s)
- Satoko Nakamura
- Division of Hypertension and Nephrology, Department of Medicine, National Cardiovascular Center, Suita, Osaka, Japan.
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Abstract
Coronary calcification has long been known to occur as a part of the atherosclerotic process, although whether it is a marker of plaque stability or instability is still a topic of considerable debate. Coronary calcification is an active process resembling bone formation within the vessel wall and, with the advances in CT technology of the past decade, can be easily quantified and expressed as a coronary artery calcium (CAC) score. The extent of calcium is thought to reflect the total coronary atherosclerotic burden, which has generated interest in using CAC as a marker of risk of cardiovascular events. The current consensus is that large amounts of CAC identify a highly vulnerable patient rather than a vulnerable plaque or vulnerable vessel. Indeed, CAC has incremental prognostic value beyond traditional risk factors in various subsets of the population. Furthermore, whereas the presence of CAC is associated with increased risk, a zero CAC score predicts excellent short-term to mid-term prognosis, even in high-risk patients. The advent of CT angiography has perhaps clouded the importance of CAC as a long-term marker of risk, as opposed to the presence of luminal stenoses that are associated with a more immediate risk of events.
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Affiliation(s)
- Nikolaos Alexopoulos
- Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA, USA
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Navarro-González JF, Mora-Fernández C, Muros M, Herrera H, García J. Mineral metabolism and inflammation in chronic kidney disease patients: a cross-sectional study. Clin J Am Soc Nephrol 2009; 4:1646-54. [PMID: 19808245 DOI: 10.2215/cjn.02420409] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND OBJECTIVES Mineral metabolism abnormalities and inflammation are concerns in chronic kidney disease (CKD). Interrelationships among these parameters have not been analyzed. DESIGN, SETTING, PARTICIPANTS, AND MEASUREMENTS The study included 133 patients with CKD not on dialysis and not receiving calcium (Ca) supplements, phosphate binders, or vitamin D. Estimated GFR (eGFR) was 34.1 +/- 6.8 ml/min/1.73 m(2); 107 participants had stage 3 CKD, and 26 had stage 4. RESULTS Patients were classified by tertiles of Ca, phosphorus (P), Ca-P product (Ca x P), and parathyroid hormone (PTH). After adjustment for age, gender, and eGFR, the levels of C-reactive protein (CRP) and IL-6 (IL-6) of the third tertile of P, Ca x P, and PTH were significantly higher than those of the first and second tertiles. Serum P and Ca x P directly correlated with CRP and IL-6, whereas HDL-cholesterol and eGFR inversely correlated with the levels of the inflammatory parameters. After partial correlation analysis, the previous associations between CRP and eGFR, and serum P, as well as the relationship between IL-6 and eGFR, and serum P, remained significant. Multiple regression analysis demonstrated that eGFR and serum P were independently associated with CRP and IL-6. Finally, logistic regression analysis using the presence/absence of an inflammatory state as the dependent variable showed that eGFR was a protective factor, whereas serum P was an independent risk factor for the presence of an inflammatory state. CONCLUSIONS Elevated serum P might play a role in the development of inflammation in CKD.
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Effect of Renal Transplantation on Coronary Artery Calcification in Hemodialysis Patients. Transplant Proc 2009; 41:2829-31. [DOI: 10.1016/j.transproceed.2009.07.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
Patients with chronic kidney disease have a higher burden of cardiovascular disease, which increases in a dose-dependent fashion with worsening kidney function. Traditional cardiovascular risk factors, including advanced age, diabetes mellitus, hypertension and dyslipidemia, have an important role in the progression of cardiovascular disease in patients who have a reduced glomerular filtration rate, especially in those with mild-to-moderate kidney disease. In patients with severe kidney disease, nontraditional or 'novel' risk factors, including inflammation, oxidative stress, vascular calcification, a prothrombotic milieu, and anemia, seem to confer additional risk. In this Review, we highlight factors that increase cardiovascular risk in patients with a reduced estimated glomerular filtration rate. In addition, we discuss therapeutic strategies for reducing cardiovascular risk in patients with kidney disease, whose unique atherosclerotic phenotype might require an approach that differs from traditional models developed in populations with normal kidney function. Therapeutic paradigms for patients with chronic kidney disease and cardiovascular risk factors must be evaluated in randomized trials, from which such patients have often been excluded.
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Speer G, Fekete BC, El Hadj Othmane T, Szabó T, Egresits J, Fodor E, Kiss I, Logan AG, Nemcsik J, Szabó A, Németh ZK, Szathmári M, Tislér A. Serum osteoprotegerin level, carotid-femoral pulse wave velocity and cardiovascular survival in haemodialysis patients. Nephrol Dial Transplant 2008; 23:3256-62. [PMID: 18450827 DOI: 10.1093/ndt/gfn242] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Osteoprotegerin (OPG) is a marker and regulator of arterial calcification, and it is related to cardiovascular survival in haemodialysis patients. The link between OPG and aortic stiffening--a consequence of arterial calcification--has not been previously evaluated in this population, and it is not known whether OPG-related mortality risk is mediated by arterial stiffening. METHODS At baseline, OPG and aortic pulse wave velocity (PWV) were measured in 98 chronic haemodialysis patients who were followed for a median of 24 months. The relationship between OPG and PWV was assessed by multivariate linear regression. The role of PWV in mediating OPG related cardiovascular mortality was evaluated by including both OPG and PWV in the same survival model. RESULTS At baseline mean (standard deviation) PWV was 11.2 (3.3) m/s and median OPG (interquartile range) was 11.1 (7.5-15.9) pmol/L. There was a strong, positive, linear relationship between PWV and lnOPG (P = 0.009, model R(2) = 0.540) independent of covariates. During follow-up 23 patients died of cardiovascular causes. In separate univariate survival models both PWV and lnOPG were related to cardiovascular mortality [hazard ratios 1.31 (1.14-1.50) and 8.96 (3.07-26.16), respectively]. When both PWV and lnOPG were entered into the same model, only lnOPG remained significantly associated with cardiovascular mortality [hazard ratio 1.11 (0.93-1.33) and 7.18 (1.89-27.25), respectively). CONCLUSION In haemodialysis patients OPG is strongly related to PWV and OPG related cardiovascular mortality risk is, in part, mediated by increased PWV.
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Affiliation(s)
- Gábor Speer
- 1st Department of Medicine, Semmelweis University Budapest, 2/a Korányi S. u., Budapest, H-1083, Hungary.
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