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Alemany M. The Metabolic Syndrome, a Human Disease. Int J Mol Sci 2024; 25:2251. [PMID: 38396928 PMCID: PMC10888680 DOI: 10.3390/ijms25042251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024] Open
Abstract
This review focuses on the question of metabolic syndrome (MS) being a complex, but essentially monophyletic, galaxy of associated diseases/disorders, or just a syndrome of related but rather independent pathologies. The human nature of MS (its exceptionality in Nature and its close interdependence with human action and evolution) is presented and discussed. The text also describes the close interdependence of its components, with special emphasis on the description of their interrelations (including their syndromic development and recruitment), as well as their consequences upon energy handling and partition. The main theories on MS's origin and development are presented in relation to hepatic steatosis, type 2 diabetes, and obesity, but encompass most of the MS components described so far. The differential effects of sex and its biological consequences are considered under the light of human social needs and evolution, which are also directly related to MS epidemiology, severity, and relations with senescence. The triggering and maintenance factors of MS are discussed, with especial emphasis on inflammation, a complex process affecting different levels of organization and which is a critical element for MS development. Inflammation is also related to the operation of connective tissue (including the adipose organ) and the widely studied and acknowledged influence of diet. The role of diet composition, including the transcendence of the anaplerotic maintenance of the Krebs cycle from dietary amino acid supply (and its timing), is developed in the context of testosterone and β-estradiol control of the insulin-glycaemia hepatic core system of carbohydrate-triacylglycerol energy handling. The high probability of MS acting as a unique complex biological control system (essentially monophyletic) is presented, together with additional perspectives/considerations on the treatment of this 'very' human disease.
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Affiliation(s)
- Marià Alemany
- Faculty of Biology, Universitat de Barcelona, 08028 Barcelona, Catalonia, Spain
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Ren Y, Cai Z, Guo C, Zhang Y, Xu H, Liu L, Wang L, Ba Y, Liu S, Zhang G, Liu Z, Han X. Associations Between Life's Essential 8 and Chronic Kidney Disease. J Am Heart Assoc 2023; 12:e030564. [PMID: 38063194 PMCID: PMC10863789 DOI: 10.1161/jaha.123.030564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 11/14/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND Chronic kidney disease (CKD) is closely associated with cardiovascular disease. We aimed to examine the association of Life's Essential 8 (LE8), the recently updated measurement of cardiovascular health, with the prevalence of CKD among US adults. METHODS AND RESULTS This population-based cross-sectional study used data from the National Health and Nutrition Examination Survey from 2007 to 2018 and included adults aged ≥20 years. Multivariable logistic and restricted cubic spline models were used to assess the associations between LE8 and CKD. Among 24 960 participants, 4437 were determined to have CKD (weighted percentage, 14.11%). After the adjustment of potential confounders, higher LE8 scores were associated with reduced odds of CKD (odds ratio for each 10-point increase, 0.79 [95% CI, 0.76-0.83]), and a nonlinear dose-response relationship was observed. Similar patterns were also identified in the associations of health behavior and health factor scores with CKD. Meanwhile, higher scores for blood glucose (odds ratio, for each 10-point increase, 0.88 [95% CI, 0.87-0.90]) and blood pressure (odds ratio, for each 10-point increase, 0.92 [95% CI, 0.91-0.94]) in the LE8 component are significantly associated with a lower prevalence of CKD. The inversed association of LE8 score and CKD was significantly stronger among middle-aged, male, and coupled participants. CONCLUSIONS LE8 was negatively associated with the prevalence of CKD in a nonlinear fashion. Promoting adherence to optimal cardiovascular health levels may be beneficial to reduce the burden of CKD.
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Affiliation(s)
- Yuqing Ren
- Department of Interventional RadiologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
- Department of Respiratory and Critical Care MedicineThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Zongao Cai
- Department of Vascular SurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Chunguang Guo
- Department of Endovascular SurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Yuyuan Zhang
- Department of Interventional RadiologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
- Interventional Institute of Zhengzhou UniversityZhengzhouHenanChina
- Interventional Treatment and Clinical Research Center of Henan ProvinceZhengzhouHenanChina
| | - Hui Xu
- Department of Interventional RadiologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
- Interventional Institute of Zhengzhou UniversityZhengzhouHenanChina
- Interventional Treatment and Clinical Research Center of Henan ProvinceZhengzhouHenanChina
| | - Long Liu
- Department of Hepatobiliary and Pancreatic SurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Libo Wang
- Department of Hepatobiliary and Pancreatic SurgeryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Yuhao Ba
- Department of Interventional RadiologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
- Interventional Institute of Zhengzhou UniversityZhengzhouHenanChina
- Interventional Treatment and Clinical Research Center of Henan ProvinceZhengzhouHenanChina
| | - Shutong Liu
- Department of Clinical MedicineZhengzhou UniversityZhengzhouHenanChina
| | - Guojun Zhang
- Department of Respiratory and Critical Care MedicineThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Zaoqu Liu
- Department of Interventional RadiologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
- Interventional Institute of Zhengzhou UniversityZhengzhouHenanChina
- Interventional Treatment and Clinical Research Center of Henan ProvinceZhengzhouHenanChina
| | - Xinwei Han
- Department of Interventional RadiologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
- Interventional Institute of Zhengzhou UniversityZhengzhouHenanChina
- Interventional Treatment and Clinical Research Center of Henan ProvinceZhengzhouHenanChina
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Zhao L, Zou Y, Wu Y, Cai L, Zhao Y, Wang Y, Xiao X, Yang Q, Yang J, Ren H, Tong N, Liu F. Metabolic phenotypes and risk of end-stage kidney disease in patients with type 2 diabetes. Front Endocrinol (Lausanne) 2023; 14:1103251. [PMID: 37234807 PMCID: PMC10206309 DOI: 10.3389/fendo.2023.1103251] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 04/13/2023] [Indexed: 05/28/2023] Open
Abstract
Background Obesity often initiates or coexists with metabolic abnormalities. This study aimed to investigate the pathological characteristics and the independent or mutual relations of obesity and metabolic abnormalities with end-stage kidney disease (ESKD) in patients with type 2 diabetes (T2D) and associated diabetic kidney disease (DKD). Methods A total of 495 Chinese patients with T2D and biopsy-confirmed DKD between 2003 and 2020 were enrolled in this retrospective study. The metabolic phenotypes were based on the body weight index (BMI)-based categories (obesity, BMI ≥ 25.0 kg/m2) and metabolic status (metabolically unhealthy status, ≥ 1 criterion National Cholesterol Education Program Adult Treatment Panel III (NCEP/ATP III) excluding waist circumference and hyperglycemia) and were categorized into four types: metabolically healthy non-obesity (MHNO), metabolically healthy obesity (MHO), metabolically unhealthy non-obesity (MUNO), and metabolically unhealthy obesity (MUO). The pathological findings were defined by the Renal Pathology Society classification. Cox proportional hazards models were used to estimate hazard ratios (HRs) for ESKD. Results There are 56 (11.3%) MHNO patients, 28 (5.7%) MHO patients, 176 (35.6%) MUNO patients, and 235 (47.5%) MUO patients. The high prevalence of the Kimmelstiel-Wilson nodule and severe mesangial expansion were associated with obesity, whereas severe IFTA was related to metabolically unhealthy status. In the multivariate analysis, the adjusted HR (aHR) was 2.09 [95% confidence interval (CI) 0.99-4.88] in the MHO group, 2.16 (95% CI 1.20-3.88) in the MUNO group, and 2.31 (95% CI 1.27-4.20) in the MUO group compared with the MHNO group. Furthermore, the presence of obesity was insignificantly associated with ESKD compared with non-obese patients (aHR 1.22, 95% CI 0.88-1.68), while the metabolically unhealthy status was significantly associated with ESKD compared to the metabolically healthy status in the multivariate analysis (aHR 1.69, 95% CI 1.10-2.60). Conclusion Obesity itself was insignificantly associated with ESKD; however, adding a metabolically unhealthy status to obesity increased the risk for progression to ESKD in T2D and biopsy-proven DKD.
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Affiliation(s)
- Lijun Zhao
- Department of General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Department of Nephrology, Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yutong Zou
- Department of Nephrology, Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yucheng Wu
- Department of Nephrology, Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Linli Cai
- Department of Nephrology, Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yuancheng Zhao
- Department of Nephrology, Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yiting Wang
- Department of Nephrology, Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xiang Xiao
- Department of Nephrology, Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Qing Yang
- Department of Nephrology, Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Jia Yang
- Department of Nephrology, Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Honghong Ren
- Department of Nephrology, Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Nanwei Tong
- Division of Endocrinology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Fang Liu
- Department of Nephrology, Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
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Gao P, Zou X, Sun X, Zhang C. Cellular Senescence in Metabolic-Associated Kidney Disease: An Update. Cells 2022; 11:3443. [PMID: 36359836 PMCID: PMC9657665 DOI: 10.3390/cells11213443] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 09/24/2023] Open
Abstract
Cellular senescence is described as the state where the cell cycle is arrested irreversibly, which occurs in response to various forms of stress factors in cells, leading to the senescence-associated secretory phenotype (SASP). We can assess the accumulation of senescent cells in tissues or organs through biomarkers of cellular senescence such as p16INK4a, p53, p21, and SA-β-GAL. In recent decades, a large number of studies have reported the biomarkers of increased cell senescence in pathogenic tissues, demonstrating the possible connection between cell senescence and various diseases. Kidney damage often occurs in the pathophysiological process of certain metabolic diseases, resulting in metabolic-associated kidney diseases. For example, hypertension causes systemic arteriosclerosis, and the kidney can be seriously affected by abundant blood vessels, which may lead to a decreased glomerular filtration rate (GFR) and proteinuria, resulting in hypertension-related kidney diseases. The accumulation of senescent cells may also be observed in some metabolic-associated kidney diseases (such as obesity-related nephropathy, hypertension-related nephropathy, and diabetic nephropathy). In this paper, we review existing knowledge regarding the influence of cellular senescence on metabolic-associated kidney diseases, providing new ideas for future treatment.
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Affiliation(s)
- Pan Gao
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xingjian Zou
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xin Sun
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chun Zhang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Okumura K, Grace H, Sogawa H, Yamanaga S. Acute kidney injury and the compensation of kidney function after nephrectomy in living donation. World J Transplant 2022; 12:223-230. [PMID: 36159072 PMCID: PMC9453297 DOI: 10.5500/wjt.v12.i8.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/27/2022] [Accepted: 08/05/2022] [Indexed: 02/05/2023] Open
Abstract
Acute kidney injury (AKI) incidence is growing rapidly, and AKI is one of the predictors of inpatient mortality. After nephrectomy, all the patients have decreased kidney function with AKI and recover from AKI. However, the characteristic and behavior of AKI is different from usual AKI and compensatory kidney function has been well known in the postoperative setting, especially in living donors. In this review, we have focused on the compensation of kidney function after nephrectomy in living donors. We discuss factors that have been identified as being associated with kidney recovery in donors including age, sex, body mass index, remnant kidney volume, estimated glomerular filtration rate, and various comorbidities.
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Affiliation(s)
- Kenji Okumura
- Department of Surgery, Westchester Medical Center/New York Medical College, Valhalla, NY 10595, United States
| | - Holly Grace
- Department of Surgery, New York Medical College, Valhalla, NY 10595, United States
| | - Hiroshi Sogawa
- Department of Surgery, Westchester Medical Center/New York Medical College, Valhalla, NY 10595, United States
| | - Shigeyoshi Yamanaga
- Department of Surgery, Japanese Red Cross Kumamoto Hospital, Kumamoto 861-8520, Japan
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Abstract
Metabolic syndrome (MS) is a group of clinical abnormalities characterized by central or abdominal obesity, hypertension, hyperuricemia, and metabolic disorders of glucose or lipid. Currently, the prevalence of MS is estimated about 25% in general population and is progressively increasing, which has become a challenging public health burden. Long-term metabolic disorders can activate the immune system and trigger a low-grade chronic inflammation named “metaflammation.” As an important organ involved in metabolism, the kidney is inevitably attacked by immunity disequilibrium and “metaflammation.” Recently, accumulating studies have suggested that the complement system, the most important and fundamental component of innate immune responses, is actively involved in the development of metabolic kidney diseases. In this review, we updated and summarized the different pathways through which the complement system is activated in a series of metabolic disturbances and the mechanisms on how complement mediate immune cell activation and infiltration, renal parenchymal cell damage, and the deterioration of renal function provide potential new biomarkers and therapeutic options for metabolic kidney diseases.
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Abstract
Metabolic syndrome (MetS) includes visceral obesity, hyperglycemia, dyslipidemia, and hypertension. The prevalence of MetS is 20-25%, which is an important risk factor for chronic kidney disease (CKD). MetS causes effects on renal pathophysiology, including glomerular hyperfiltration, RAAS, microalbuminuria, profibrotic factors and podocyte injury. This review compares several criteria of MetS and analyzes their differences. MetS and the pathogenesis of CKD includes insulin resistance, obesity, dyslipidemia, inflammation, oxidative stress, and endothelial dysfunction. The intervention of MetS-related renal damage is the focus of this article and includes controlling body weight, hypertension, hyperglycemia, and hyperlipidemia, requiring all components to meet the criteria. In addition, interventions such as endoplasmic reticulum stress, oxidative stress, gut microbiota, body metabolism, appetite inhibition, podocyte apoptosis, and mesenchymal stem cells are reviewed.
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Affiliation(s)
- Lirong Lin
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University (Gener Hospital), Chongqing, China
| | - Wei Tan
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University (Gener Hospital), Chongqing, China
| | - Xianfeng Pan
- Department of Nephrology, Chongqing Kaizhou District People’s Hospital of Chongqing, Chongqing, China
| | - En Tian
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University (Gener Hospital), Chongqing, China
| | - Zhifeng Wu
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University (Gener Hospital), Chongqing, China
| | - Jurong Yang
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University (Gener Hospital), Chongqing, China
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Zhao L, Zou Y, Bai L, Zhou L, Ren H, Wu Y, Wang Y, Li S, Su Q, Tang L, Zhao Y, Xu H, Li L, Chai Z, Cooper ME, Tong N, Zhang J, Liu F. Prognostic value of metabolic syndrome in renal structural changes in type 2 diabetes. Int Urol Nephrol 2022; 54:2005-2014. [PMID: 35043385 DOI: 10.1007/s11255-021-03051-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 10/24/2021] [Indexed: 02/05/2023]
Abstract
PURPOSE To investigate the prognostic value of metabolic syndrome (MetS) and its relationship with renal structure changes in patients with type 2 diabetes and associated diabetic nephropathy (DN). METHODS 411 Chinese patients with type 2 diabetes and biopsy-confirmed DN were enrolled in this retrospective study. MetS was defined according to the modified criteria of the 2005 International Diabetes Federation. Baseline demographics and clinical information at the time of renal biopsy were extracted from the hospital's electronic medical records system. Renal pathological findings were assessed according to Renal Pathology Society system. Univariate and multivariate logistic regression analyses were performed to define the pathological covariates associated with MetS. A competing risk model, with death as the competing risk, was used to estimate the sub-distribution hazard ratio (SHR) of MetS for end-stage kidney disease (ESKD). RESULTS 224 (55%) patients had MetS. Patients with MetS had poor renal function and more severe interstitial fibrosis tubular atrophy scores (IFTA) than those without MetS. Multivariate logistic regression analysis revealed that IFTA was significantly associated with MetS (odds ratio per score increase 1.45, 95% confidence interval [CI] 1.02-2.05). Of the patients with DN at risk, 40% of patients progressed to ESKD. After adjusting for renal function and pathological parameters, the presence of MetS was an independent predictor for progression to ESKD (SHR 1.93, 95% CI 1.34-2.79). The SHRs for progression to ESKD also increased as the number of MetS components increased. Additionally, adding the IFTA scores improved the prognostic power of a model that only contained MetS and clinical covariates for predicting future ESKD. CONCLUSION MetS is an independent prognostic predictor of ESKD in patients with T2D and DN, while adding the IFTA scores increased the prognostic value of MetS for renal outcome.
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Affiliation(s)
- Lijun Zhao
- Department of Nephrology, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan, China.,Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China.,Department of General Practice, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yutong Zou
- Department of Nephrology, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan, China.,Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Lin Bai
- Histology and Imaging Platform, Core Facility of West China Hospital, Chengdu, Sichuan, China
| | - Li Zhou
- Histology and Imaging Platform, Core Facility of West China Hospital, Chengdu, Sichuan, China
| | - Honghong Ren
- Department of Nephrology, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan, China.,Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yucheng Wu
- Department of Nephrology, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan, China.,Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yiting Wang
- Department of Nephrology, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan, China.,Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Shuangqing Li
- Division of General Practice, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Qiaoli Su
- Division of General Practice, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Linqiao Tang
- Histology and Imaging Platform, Core Facility of West China Hospital, Chengdu, Sichuan, China
| | - Yuancheng Zhao
- Department of Nephrology, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan, China.,Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Huan Xu
- Division of Pathology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Lin Li
- Division of Pathology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Zhonglin Chai
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, Australia
| | - Mark E Cooper
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, Australia
| | - Nanwei Tong
- Division of Endocrinology, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan, China.
| | - Jie Zhang
- Histology and Imaging Platform, Core Facility of West China Hospital, Chengdu, Sichuan, China
| | - Fang Liu
- Department of Nephrology, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan, China. .,Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
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Kabasawa K, Hosojima M, Ito Y, Matsushima K, Tanaka J, Hara M, Nakamura K, Narita I, Saito A. Association of metabolic syndrome traits with urinary biomarkers in Japanese adults. Diabetol Metab Syndr 2022; 14:9. [PMID: 35033174 PMCID: PMC8760661 DOI: 10.1186/s13098-021-00779-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/28/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Although metabolic syndrome traits are risk factors for chronic kidney disease, few studies have examined their association with urinary biomarkers. METHODS Urinary biomarkers, including A-megalin, C-megalin, podocalyxin, albumin, α1-microglobulin, β2-microglobulin, and N-acetyl-β-D-glucosaminidase, were cross-sectionally assessed in 347 individuals (52.7% men) with a urine albumin-to-creatinine ratio (ACR) < 300 mg/g in a health checkup. Metabolic syndrome traits were adopted from the National Cholesterol Education Program (third revision) of the Adult Treatment Panel criteria modified for Asians. RESULTS Participants had a mean body mass index, estimated glomerular filtration rate (eGFR), and median ACR of 23.0 kg/m2, 74.8 mL/min/1.73 m2, and 7.5 mg/g, respectively. In age- and sex-adjusted logistic regression analysis, A-megalin and albumin were significantly associated with the clustering number of metabolic syndrome traits (3 or more). After further adjustment with eGFR, higher quartiles of A-megalin and albumin were each independently associated with the clustering number of metabolic syndrome traits (adjusted odds ratio for A-megalin: 1.30 per quartile, 95% CI 1.03-1.64; albumin: 1.42 per quartile, 95% CI 1.12-1.79). CONCLUSIONS Both urinary A-megalin and albumin are associated with the clustering number of metabolic syndrome traits. Further research on urinary A-megalin is warranted to examine its role as a potential marker of kidney damage from metabolic risk factors.
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Affiliation(s)
- Keiko Kabasawa
- Department of Health Promotion Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
- Division of Clinical Nephrology and Rheumatology, Kidney Research Center, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
| | - Michihiro Hosojima
- Department of Clinical Nutrition Science, Kidney Research Center, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yumi Ito
- Department of Health Promotion Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- Division of Clinical Nephrology and Rheumatology, Kidney Research Center, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | | | - Junta Tanaka
- Department of Health Promotion Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | | | - Kazutoshi Nakamura
- Division of Preventive Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ichiei Narita
- Department of Health Promotion Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- Division of Clinical Nephrology and Rheumatology, Kidney Research Center, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Akihiko Saito
- Department of Applied Molecular Medicine, Kidney Research Center, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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El-Domiaty HF, Sweed E, Kora MA, Zaki NG, Khodir SA. Activation of angiotensin-converting enzyme 2 ameliorates metabolic syndrome-induced renal damage in rats by renal TLR4 and nuclear transcription factor κB downregulation. Front Med (Lausanne) 2022; 9:904756. [PMID: 36035416 PMCID: PMC9411523 DOI: 10.3389/fmed.2022.904756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/27/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) is an independent risk factor for chronic kidney disease (CKD) through many mechanisms, including activation of the renin-angiotensin system. The deleterious effects of angiotensin II (Ang II) can be counterbalanced by angiotensin-converting enzyme 2 (ACE2). Diminazene aceturate (DIZE), an anti-trypanosomal drug, can activate ACE2. OBJECTIVE This study aimed to investigate the possible reno-protective effects of DIZE in MetS rats with elucidation of related mechanisms. MATERIALS AND METHODS Thirty adult male Wistar albino rats were divided equally into control, MetS, and MetS + DIZE groups. Body weight, systolic blood pressure (SBP), and urinary albumin levels were measured. Serum levels of fasting blood glucose (FBG), insulin, uric acid, lipid profile, urea, and creatinine were measured. Homeostasis Model Assessment Index (HOMA-IR) was estimated. Subsequently, renal levels of ACE2, Ang II, malondialdehyde (MDA), reduced glutathione (GSH), and tumor necrosis factor-α (TNF-α) were measured with histopathological and immunohistochemical assessment of TLR4 and NF-κB in renal tissues. RESULTS MetS caused dyslipidemia with significant increases in body weight, SBP, FBG, serum insulin, HOMA-IR, uric acid, urea, creatinine, urinary albumin, and renal levels of Ang II, MDA, and TNF-α, whereas renal ACE2 and GSH were significantly decreased. Renal TLR4 and NF-κB immunoreactivity in MetS rats was upregulated. DIZE supplementation of MetS rats induced significant improvements in renal function parameters; this could be explained by the ability of DIZE to activate renal ACE2 and decrease renal Ang II levels with downregulation of renal TLR4 and NF-κB expression. CONCLUSION DIZE exerts a reno-protective effect in MetS, mainly by downregulating renal TLR4 and NF-κB levels.
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Affiliation(s)
- Heba F. El-Domiaty
- Department of Medical Physiology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Eman Sweed
- Department of Clinical Pharmacology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
- *Correspondence: Eman Sweed,
| | - Mona A. Kora
- Department of Pathology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Nader G. Zaki
- Department of Anatomy and Embryology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Suzan A. Khodir
- Department of Medical Physiology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
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11
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Abstract
The clinical consequences of obesity on the kidneys, with or without metabolic abnormalities, involve both renal function and structures. The mechanisms linking obesity and renal damage are well understood, including several effector mechanisms with interconnected pathways. Higher prevalence of urinary albumin excretion, sub-nephrotic syndrome, nephrolithiasis, increased risk of developing CKD, and progression to ESKD have been identified as being associated with obesity and having a relevant clinical impact. Moreover, renal replacement therapy and kidney transplantation are also influenced by obesity. Losing weight is key in limiting the impact that obesity produces on the kidneys by reducing albuminuria/proteinuria, declining rate of eGFR deterioration, delaying the development of CKD and ESKD, and improving the outcome of a renal transplant. Weight reduction may also contribute to appropriate control of cardiometabolic risk factors such as hypertension, metabolic syndrome, diabetes, and dyslipidemia which may be protective not only in renal damage but also cardiovascular disease. Lifestyle changes, some drugs, and bariatric surgery have demonstrated the benefits.
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Affiliation(s)
- Vasilios Kotsis
- 3rd Department of Internal Medicine, Hypertension-24h ABPM ESH Center of Excellence, Papageorgiou Hospital, Aristotle University of Thessaloniki, 564 29 Pavlos Melas, Greece; (V.K.); (C.T.)
| | - Fernando Martinez
- Internal Medicine Hospital Clínico de Valencia, 46010 Valencia, Spain;
| | - Christina Trakatelli
- 3rd Department of Internal Medicine, Hypertension-24h ABPM ESH Center of Excellence, Papageorgiou Hospital, Aristotle University of Thessaloniki, 564 29 Pavlos Melas, Greece; (V.K.); (C.T.)
| | - Josep Redon
- Internal Medicine Hospital Clínico de Valencia, 46010 Valencia, Spain;
- Cardiovascular and Renal Research Group, INCLIVA Research Institute, University of Valencia, 46010 Valencia, Spain
- CIBERObn Carlos III Institute, 28029 Madrid, Spain
- Correspondence:
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12
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Luetić M, Kretzschmar G, Grobe M, Jerčić L, Bota I, Ivić V, Balog M, Zjalić M, Vitlov Uljević M, Heffer M, Gaspar R, Tabi T, Vukojević K, Vari SG, Filipović N. Sex-specific effects of metformin and liraglutide on renal pathology and expression of connexin 45 and pannexin 1 following long-term high-fat high-sugar diet. Acta Histochem 2021; 123:151817. [PMID: 34808525 DOI: 10.1016/j.acthis.2021.151817] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 01/29/2023]
Abstract
The comparative effects of the two commonly used antidiabetic drugs metformin and liraglutide on renal pathology and expression of connexin 45 (Cx45) and pannexin 1 (Panx1) in adult obese rats fed high-fat high-sugar diet (HFHSD) were studied. Considering recent data on the profound influence of sex on metformin and liraglutide effects, we compared the effects of both drugs between male and female animals. 44-week-old Sprague-Dawley rats were separated into 4 groups that were fed: standard diet, HFHSD, HFHSD treated with metformin (s.c., 50 mg/kg/day) and HFHSD treated with liraglutide (s.c., 0.3 mg/kg/day). Treatment with metformin or liraglutide lasted for 14 weeks. Histology and immunohistochemistry were performed to quantify renal pathological changes and Cx45 and Panx1 expression. HFHSD caused thickening of the Bowman's capsule (BC). Both metformin and liraglutide failed to ameliorate the BC thickening; metformin even worsened it. Effects on the tubulointerstitial fibrosis score, BC thickness and Cx45 and Panx1 expression were sex-dependent. We found a 50% increase in mitochondria in proximal tubules of metformin- and liraglutide-treated HFHSD-fed rats, but these effects were not dependent on the sex. This is a first study showing that the effects of metformin and liraglutide on kidney pathology in rats fed HFHSD are mostly sex-dependent and that these effects are not necessarily beneficial. Both drugs changed the Cx45 and Panx 1 expression; hence their effects could be related to amelioration of disruptions in intercellular communication.
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Affiliation(s)
- Martina Luetić
- Department of Pathology, Forensic Medicine and Cytology, University Hospital Centre Split, Spinčićeva 1, Split 21000, Croatia
| | - Genia Kretzschmar
- University of Split School of Medicine, Laboratory for Neurocardiology, Department of Anatomy, Histology and Embryology, Šoltanska 2, Split 21000, Croatia
| | - Maximilian Grobe
- University of Split School of Medicine, Laboratory for Neurocardiology, Department of Anatomy, Histology and Embryology, Šoltanska 2, Split 21000, Croatia
| | - Leo Jerčić
- University of Split School of Medicine, Laboratory for Neurocardiology, Department of Anatomy, Histology and Embryology, Šoltanska 2, Split 21000, Croatia
| | - Ivana Bota
- University of Split School of Medicine, Laboratory for Neurocardiology, Department of Anatomy, Histology and Embryology, Šoltanska 2, Split 21000, Croatia
| | - Vedrana Ivić
- Faculty of Medicine Osijek Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 10/E, Osijek 31000, Croatia
| | - Marta Balog
- Faculty of Medicine Osijek Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 10/E, Osijek 31000, Croatia
| | - Milorad Zjalić
- Faculty of Medicine Osijek Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 10/E, Osijek 31000, Croatia
| | - Marija Vitlov Uljević
- University of Split School of Medicine, Laboratory for Neurocardiology, Department of Anatomy, Histology and Embryology, Šoltanska 2, Split 21000, Croatia
| | - Marija Heffer
- Faculty of Medicine Osijek Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 10/E, Osijek 31000, Croatia
| | - Robert Gaspar
- Department of Pharmacology and Pharmacotherapy, Interdisciplinary Excellence Centre, University of Szeged, Dóm tér. 12., H-6720 Szeged, Hungary
| | - Tamas Tabi
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
| | - Katarina Vukojević
- University of Split School of Medicine, Laboratory for Neurocardiology, Department of Anatomy, Histology and Embryology, Šoltanska 2, Split 21000, Croatia; University of Split School of Medicine, Laboratory for Early Human Development, Department of Anatomy, Histology and Embryology, Šoltanska 2, Split 21000, Croatia
| | - Sandor G Vari
- International Research and Innovation in Medicine Program, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Natalija Filipović
- University of Split School of Medicine, Laboratory for Neurocardiology, Department of Anatomy, Histology and Embryology, Šoltanska 2, Split 21000, Croatia.
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13
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Ricaurte Archila L, Denic A, Mullan AF, Narasimhan R, Bogojevic M, Thompson RH, Leibovich BC, Sangaralingham SJ, Smith ML, Alexander MP, Rule AD. A Higher Foci Density of Interstitial Fibrosis and Tubular Atrophy Predicts Progressive CKD after a Radical Nephrectomy for Tumor. J Am Soc Nephrol 2021; 32:2623-2633. [PMID: 34531177 PMCID: PMC8722813 DOI: 10.1681/asn.2021020267] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 05/22/2021] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Chronic tubulointerstitial injury on kidney biopsy is usually quantified by the percentage of cortex with interstitial fibrosis/tubular atrophy (IF/TA). Whether other patterns of IF/TA or inflammation in the tubulointerstitium have prognostic importance beyond percentage IF/TA is unclear. METHODS We obtained, stained, and digitally scanned full cortical thickness wedge sections of renal parenchyma from patients who underwent a radical nephrectomy for a tumor over 2000-2015, and morphometrically analyzed the tubulointerstitium of the cortex for percentage IF/TA, IF/TA density (foci per mm2 cortex), percentage subcapsular IF/TA, striped IF/TA, percentage inflammation (both within and outside IF/TA regions), and percentage subcapsular inflammation. Patients were followed with visits every 6-12 months. Progressive CKD was defined as dialysis, kidney transplantation, or 40% decline from the postnephrectomy eGFR. Cox models assessed the risk of CKD or noncancer mortality with morphometric measures of tubulointerstitial injury after adjustment for the percentage IF/TA and clinical characteristics. RESULTS Among 936 patients (mean age, 64 years; postnephrectomy baseline eGFR, 48 ml/min per 1.73m2), 117 progressive CKD events and 183 noncancer deaths occurred over a median 6.4 years. Higher IF/TA density predicted both progressive CKD and noncancer mortality after adjustment for percentage IF/TA and predicted progressive CKD after further adjustment for clinical characteristics. Independent of percentage IF/TA, age, and sex, higher IF/TA density correlated with lower eGFR, smaller nonsclerosed glomeruli, more global glomerulosclerosis, and smaller total cortical volume. CONCLUSIONS Higher density of IF/TA foci (a more scattered pattern with more and smaller foci) predicts higher risk of progressive CKD after radical nephrectomy compared with the same percentage of IF/TA but with fewer and larger foci.
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Affiliation(s)
| | - Aleksandar Denic
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Aidan F. Mullan
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota
| | - Ramya Narasimhan
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Marija Bogojevic
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | | | | | | | - Maxwell L. Smith
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Mariam P. Alexander
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, Arizona
| | - Andrew D. Rule
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota,Division of Epidemiology, Mayo Clinic, Rochester, Minnesota
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14
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Rodríguez-Rodríguez R, Hojs R, Trevisani F, Morales E, Fernández G, Bevc S, Cases Corona CM, Cruzado JM, Quero M, Navarro Díaz M, Bettiga A, Di Marco F, López Martínez M, Moreso F, García Garro C, Khazim K, Ghanem F, Praga M, Ibernón M, Laranjinha I, Mendonça L, Bigotte Vieira M, Hornum M, Feldt-Rasmussen B, Fernández-Fernández B, Concepción PF, Negrín Mena N, Ortiz A, Porrini E. The Role of Vascular Lesions in Diabetes Across a Spectrum of Clinical Kidney Disease. Kidney Int Rep 2021; 6:2392-2403. [PMID: 34514200 PMCID: PMC8419124 DOI: 10.1016/j.ekir.2021.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 06/04/2021] [Indexed: 12/29/2022] Open
Abstract
Introduction The clinical-histologic correlation in diabetic nephropathy is not completely known. Methods We analyzed nephrectomy specimens from 90 patients with diabetes and diverse degrees of proteinuria and glomerular filtration rate (GFR). Results Thirty-six (40%) subjects had normoalbuminuria, 33 (37%) microalbuminuria, and 21 (23%) non-nephrotic proteinuria. Mean estimated GFR (eGFR) was 65±23 (40% <60 ml/min per 1.73 m2). About 170 glomeruli per patient were analyzed, and all samples included vascular tissue. Six subjects (7%) were classified in diabetic nephropathy class I, 61 (68%) in class II-a, 13 (14%) in class II-b, 9 (10%) class III, and 1 (1%) in class IV. Eighty percent to 90% of those with normoalbuminuria or microalbuminuria were classified in class II-a or II-b and <10% in class III; 52% of those with proteinuria were in class II-a, 15% in class II-b, and 19% in class III. Nodular sclerosis (57%) and mesangial expansion (15%) were more frequent in cases with proteinuria than in normoalbuminuria (28% and 8%; P = 0.028 and 0.017). About 20% to 30% of all cases, regardless the level of albuminuria or proteinuria or the histologic class had tubular atrophy, interstitial fibrosis, or inflammation in >10% to 20% of the sample. Moderate hyalinosis and arteriolar sclerosis were observed in 80% to 100% of cases with normoalbuminuria, microalbuminuria, proteinuria, as well as in class I, II, or III. Conclusions Weak correspondence between analytical parameters and kidney histology was found. Thus, disease may progress undetected from the early clinical stages of the disease. Finally, vascular damage was a very common finding, which highlights the role of ischemic intrarenal disease in diabetes.
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Affiliation(s)
- Rosa Rodríguez-Rodríguez
- Hospital Universitario de Canarias, Pathology Department, Tenerife, Spain.,University of La Laguna, Faculty of Medicine, Tenerife, Spain
| | - Radovan Hojs
- Department of Nephrology, Clinic for Internal Medicine, University Clinical Centre Maribor and Faculty of Medicine, University of Maribor, Slovenia
| | - Francesco Trevisani
- IRCCS Ospedale San Raffaele, URI-Urological Research Institute, Milano, Italy
| | | | - Gema Fernández
- Hospital Universitario Fundación Alcorcón, Madrid, Spain.,REDINREN ISCIII, Madrid, Spain
| | - Sebastjan Bevc
- Department of Nephrology, Clinic for Internal Medicine, University Clinical Centre Maribor and Faculty of Medicine, University of Maribor, Slovenia
| | | | - Josep María Cruzado
- REDINREN ISCIII, Madrid, Spain.,Nephrology Department, Hospital Universitario de Bellvitge, Biomedical Research Institute (IDIBELL), Departamento de Ciencias Clínicas, Facultad de Medicina, Universidad de Barcelona, Hospitalet de Llobregat, Spain
| | - María Quero
- REDINREN ISCIII, Madrid, Spain.,Nephrology Department, Hospital Universitario de Bellvitge, Biomedical Research Institute (IDIBELL), Departamento de Ciencias Clínicas, Facultad de Medicina, Universidad de Barcelona, Hospitalet de Llobregat, Spain
| | | | - Arianna Bettiga
- IRCCS Ospedale San Raffaele, URI-Urological Research Institute, Milano, Italy
| | - Federico Di Marco
- IRCCS Ospedale San Raffaele, URI-Urological Research Institute, Milano, Italy
| | | | - Francisco Moreso
- REDINREN ISCIII, Madrid, Spain.,Hospital Universitario Vall d'Hebron, Barcelona, Spain
| | | | - Khaled Khazim
- Galilee Medical Center, Nahariya, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Fedaa Ghanem
- Galilee Medical Center, Nahariya, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Manuel Praga
- Hospital 12 de Octubre, Madrid, Spain.,REDINREN ISCIII, Madrid, Spain
| | | | | | | | | | | | | | | | | | | | - Alberto Ortiz
- REDINREN ISCIII, Madrid, Spain.,IIS-Fundación Jiménez Díaz-UAM, Madrid, Spain
| | - Esteban Porrini
- University of La Laguna, Faculty of Medicine, Tenerife, Spain.,REDINREN ISCIII, Madrid, Spain.,Research Unit, Hospital Universitario de Canarias, Tenerife, Spain.,ITB-Instituto de Tecnología Biomedicas, University of La Laguna, Tenerife, Spain
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15
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Zhang Y, Wu T, Xie J, Yan L, Guo X, Xu W, Wang L. Effects of metabolic syndrome on renal function after radical nephrectomy in patients with renal cell carcinoma. Int Urol Nephrol 2021; 53:2127-2135. [PMID: 33459957 DOI: 10.1007/s11255-020-02759-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/15/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE Nephrectomy, partial or radical, remains the standard treatment for renal cell carcinoma (RCC). However, increased risk of chronic kidney disease (CKD) must still be considered. This study aimed to evaluate the effects of concomitant metabolic syndrome (MetS) on renal function in patients with RCC after radical nephrectomy. METHODS Medical records of 310 patients who underwent radical nephrectomy for clear-cell RCC at 900th Hospital of the Joint Logistics Support Force, PLA from December 2012 to January 2017 were reviewed retrospectively. Estimated glomerular filtration rate (eGFR) and CKD stages were calculated at one week preoperative as baseline and then at postoperative 1 week, 3 months, 12 months and 24 months. MetS patients were identified and enrolled in the MetS group (n = 31), and a non-MetS group was selected by propensity score matching (n = 31). Non-neoplastic renal parenchyma specimens taken at least 2 cm from edge of tumor were evaluated. RESULTS Baseline characteristics between the two groups were comparable. At 24 months postoperative, mean eGFR levels of the MetS group were significantly lower than those in the non-MetS group (62.7 vs. 73.3 ml/min/1.73 m2; p = 0.004). CKD stages were still more severe in the MetS group than those in the non-MetS group (p = 0.006). The proportions of global sclerosis, tubular atrophy and interstitial fibrosis were all significantly more prevalent in MetS patients, compared to non-MetS patients (all p < 0.05). CONCLUSION In RCC patients with MetS, the possibility of declining eGFR and CKD progression must be considered after radical nephrectomy. Routine monitoring of renal function must be emphasized.
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Affiliation(s)
- Yong Zhang
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, People's Republic of China.,Division of Nephrology, The 900th Hospital of Joint Logistic Support Force, PLA, 156 West Second Ring Road, Fuzhou, 350025, People's Republic of China
| | - Tingkun Wu
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, People's Republic of China
| | - Jingjing Xie
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, People's Republic of China
| | - Liqun Yan
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, People's Republic of China
| | - Xiuli Guo
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, People's Republic of China
| | - Weijia Xu
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, People's Republic of China
| | - Liping Wang
- Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, People's Republic of China. .,Division of Nephrology, The 900th Hospital of Joint Logistic Support Force, PLA, 156 West Second Ring Road, Fuzhou, 350025, People's Republic of China.
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16
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Denic A, Elsherbiny H, Mullan AF, Leibovich BC, Thompson RH, Ricaurte Archila L, Narasimhan R, Kremers WK, Alexander MP, Lieske JC, Lerman LO, Rule AD. Larger Nephron Size and Nephrosclerosis Predict Progressive CKD and Mortality after Radical Nephrectomy for Tumor and Independent of Kidney Function. J Am Soc Nephrol 2020; 31:2642-2652. [PMID: 32938650 PMCID: PMC7608955 DOI: 10.1681/asn.2020040449] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 08/17/2020] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Nephron hypertrophy and nephrosclerosis may be important determinants of CKD and mortality. However, studies of outcomes associated with these microstructural features have been limited to small tissue specimens from patients selected for either good kidney health or known kidney disease. METHODS To determine whether microstructural features are predictive of progressive CKD and mortality outcomes, we studied patients who underwent a radical nephrectomy for a tumor. Large wedge sections of renal parenchyma distal to the tumor were stained and scanned into high-resolution images; we annotated the cortex and all glomeruli to calculate glomerular volume, cortex volume per glomerulus, and percentage of globally sclerotic glomeruli. Morphometric measurements also included percentages of artery luminal stenosis and interstitial fibrosis/tubular atrophy (IF/TA) of the cortex. At follow-up visits every 6-12 months, we determined which patients experienced progressive CKD (defined as dialysis, kidney transplantation, or a 40% decline from postnephrectomy eGFR). Cox models for these outcomes were adjusted for age, sex, body mass index, hypertension, diabetes, smoking, eGFR, and proteinuria. RESULTS Among 936 patients (mean age, 64 years; postnephrectomy baseline eGFR, 48 ml/min per 1.73 m2), 117 progressive CKD events, 183 noncancer deaths, and 116 cancer deaths occurred during a median follow-up of 6.4 years. Larger glomerular volume, larger cortex per glomerulus, and higher percentage of globally sclerotic glomeruli or IF/TA predicted progressive CKD. Higher percentage IF/TA also predicted noncancer mortality. Microstructural features did not predict cancer mortality or recurrence. CONCLUSIONS After a radical nephrectomy, larger nephrons and nephrosclerosis predicted progressive CKD, and IF/TA predicted noncancer mortality. Morphometric analysis of renal parenchyma can predict noncancer clinical events in patients long after their radical nephrectomy.
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Affiliation(s)
- Aleksandar Denic
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Hisham Elsherbiny
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Aidan F. Mullan
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota
| | | | | | | | - Ramya Narasimhan
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Walter K. Kremers
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota
| | - Mariam P. Alexander
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - John C. Lieske
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota,Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Lilach O. Lerman
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Andrew D. Rule
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota,Division of Epidemiology, Mayo Clinic, Rochester, Minnesota
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17
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Rodríguez RR, González-Bulnes A, Garcia-Contreras C, Elena Rodriguez-Rodriguez A, Astiz S, Vazquez-Gomez M, Luis Pesantez J, Isabel B, Salido-Ruiz E, González J, Donate Correa J, Luis-Lima S, Porrini E. The Iberian pig fed with high-fat diet: a model of renal disease in obesity and metabolic syndrome. Int J Obes (Lond) 2019; 44:457-465. [PMID: 31636376 DOI: 10.1038/s41366-019-0434-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 05/07/2019] [Accepted: 05/28/2019] [Indexed: 11/09/2022]
Abstract
BACKGROUND The pathogenesis of renal disease in the context of overweight/obesity, metabolic syndrome, and insulin resistance is not completely understood. This may be due to the lack of a definitive animal model of disease, which limits our understanding of obesity-induced renal damage. We evaluated the changes in renal histology and lipid deposits induced by obesity in a model of insulin resistance: the Iberian swine fed with fat-enriched food. METHODS Twenty-eight female sows were randomized to standard (SD) or high-fat diet (HFD: 6.8% of saturated fat) for 100 days. Weight, adiposity, analytics, oral glucose tolerance tests, and measured renal function were determined. Renal histology and lipid deposits in renal tissue were analyzed. RESULTS Animals on HFD developed obesity, hypertension, high levels of LDL cholesterol, triglycerides, insulin resistance, and glomerular hyperfiltration. No animal developed overt diabetes. Animals on HFD showed "diabetoid changes", including mesangial expansion [21.40% ± 4 vs.13.20% ± 4.0, p < 0.0001], nodular glomerulosclerosis [7.40% ± 7, 0.75 vs. 2.40% ± 4.7, p = 0.02], and glomerulomegaly (18% vs. 10%, p = 0.010) than those on SD. Tubular atrophy, interstitial fibrosis, inflammation, arteriolar hyalinosis, or fibrointimal thickening were mild and similar between groups. Triglyceride content in renal tissue was higher in animals on HFD than in SD (15.4% ± 0.5 vs. 12.7% ± 0.7; p < 0.01). CONCLUSIONS Iberian pigs fed with fat-enriched food showed diabetoid changes and glomerulomegaly as observed in obese humans making this model suitable to study obesity-induced renal disease.
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Affiliation(s)
- Rosa Rodríguez Rodríguez
- Pathology Department, Hospital Universitario de Canarias, Tenerife, Spain.,University of La Laguna, Santa Cruz de Tenerife, Spain
| | - Antonio González-Bulnes
- Comparative Physiology Group, SGIT-INIA, Madrid, Spain.,Faculty of Veterinary, Universidad Complutense de Madrid, Madrid, Spain
| | | | | | - Susana Astiz
- Comparative Physiology Group, SGIT-INIA, Madrid, Spain
| | | | | | | | - Eduardo Salido-Ruiz
- Pathology Department, Hospital Universitario de Canarias, Tenerife, Spain.,University of La Laguna, Santa Cruz de Tenerife, Spain.,Instituto Tecnologías Biomédicas (ITB), Tenerife, Spain
| | | | - Javier Donate Correa
- Nephrology Department, Research Unit Hospital Universitario de Canarias, Tenerife, Spain
| | - Sergio Luis-Lima
- Instituto Tecnologías Biomédicas (ITB), Tenerife, Spain.,Nephrology Department, Research Unit Hospital Universitario de Canarias, Tenerife, Spain
| | - Esteban Porrini
- University of La Laguna, Santa Cruz de Tenerife, Spain. .,Instituto Tecnologías Biomédicas (ITB), Tenerife, Spain. .,Nephrology Department, Research Unit Hospital Universitario de Canarias, Tenerife, Spain.
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Then C, Then H, Lechner A, Huth C, Meisinger C, Heier M, Peters A, Koenig W, Rathmann W, Herder C, Roden M, Scherberich J, Seissler J. Serum uromodulin is inversely associated with the metabolic syndrome in the KORA F4 study. Endocr Connect 2019; 8:1363-1371. [PMID: 31505464 PMCID: PMC6790901 DOI: 10.1530/ec-19-0352] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 09/10/2019] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Metabolic syndrome and obesity are risk factors for chronic kidney disease. However, early kidney alterations may escape diagnosis in these conditions due to glomerular hyperfiltration. Uromodulin, a glycoprotein exclusively synthesized in tubular cells of the thick ascending limb of Henle's loop, is a novel tissue-specific biomarker for kidney function. In contrast to the commonly used markers creatinine and cystatin C, serum uromodulin does not primarily depend on glomerular filtration. We hypothesized that serum uromodulin is a marker for metabolic syndrome and related components. DESIGN The analyses included 1088 participants of the population-based KORA F4 study aged 62-81 years. Metabolic syndrome was present in 554 participants. After a mean follow-up time of 6.5 years, 621 participants were reevaluated, of which 92 had developed incident metabolic syndrome. METHODS The association of serum uromodulin with metabolic syndrome and its components were assessed using multivariable logistic regression models. RESULTS Serum uromodulin was inversely associated with metabolic syndrome after adjustment for sex, age, estimated glomerular filtration rate, physical activity, smoking, alcohol consumption and high-sensitivity C-reactive protein (OR 0.65; 95% CI 0.56-0.76 per standard deviation uromodulin; P < 0.001). Serum uromodulin was inversely associated with all single components of metabolic syndrome. However, serum uromodulin was not associated with new-onset metabolic syndrome after the follow-up period of 6.5 ± 0.3 years (OR 1.18; 95% CI 0.86-1.60). CONCLUSIONS Serum uromodulin is independently associated with prevalent, but not with incident metabolic syndrome. Low serum uromodulin may indicate a decreased renal reserve in the metabolic syndrome.
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Affiliation(s)
- Cornelia Then
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, LMU München, Munich, Germany
- Clinical Cooperation Group Diabetes, LMU München and Helmholtz Zentrum München, Munich, Germany
- Correspondence should be addessed to C Then:
| | - Holger Then
- Freie Waldorfschule Augsburg, Augsburg, Germany
| | - Andreas Lechner
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, LMU München, Munich, Germany
- Clinical Cooperation Group Diabetes, LMU München and Helmholtz Zentrum München, Munich, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Cornelia Huth
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute of Epidemiology, Helmholtz Zentrum München – German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Christa Meisinger
- Independent Research Group Clinical Epidemiology, Helmholtz Zentrum München – German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- Chair of Epidemiology at UNIKAT Augsburg, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Margit Heier
- Institute of Epidemiology, Helmholtz Zentrum München – German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- KORA Study Center, University Hospital Augsburg, Augsburg, Germany
| | - Annette Peters
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute of Epidemiology, Helmholtz Zentrum München – German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Wolfgang Koenig
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
- Institute of Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Wolfgang Rathmann
- Institute of Biometrics and Epidemiology, German Diabetes Center, Leibniz Institute at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Christian Herder
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute of Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Michael Roden
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute of Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Jürgen Scherberich
- Klinikum München-Harlaching, Teaching Hospital of the Ludwig-Maximilians-Universität, Munich, Germany
| | - Jochen Seissler
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, LMU München, Munich, Germany
- Clinical Cooperation Group Diabetes, LMU München and Helmholtz Zentrum München, Munich, Germany
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Shinoda K, Morita S, Akita H, Washizuka F, Tamaki S, Takahashi R, Oguchi H, Sakurabayashi K, Mizutani T, Takahashi Y, Hyodo Y, Itabashi Y, Muramatsu M, Kawamura T, Asanuma H, Kikuchi E, Jinzaki M, Shiraga N, Nakagawa K, Oya M, Shishido S, Sakai K. Preserved Kidney Volume, Body Mass Index, and Age Are Significant Preoperative Factors for Predicting Estimated Glomerular Filtration Rate in Living Kidney Donors at 1 Year After Donation. Transplant Proc 2019; 51:1306-10. [PMID: 31076152 DOI: 10.1016/j.transproceed.2019.01.142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 01/28/2019] [Indexed: 01/12/2023]
Abstract
BACKGROUND Securing postdonation renal function in the lifetime of donors is a consequential subject for physicians, and precise prediction of postdonation renal function would be considerably beneficial when judging the feasibility of kidney donation. The aim of this study was to investigate the optimum model for predicting eGFR at 1 year after kidney donation. METHODS We enrolled 101 living-related kidney donors for the development cohort and 44 for the external validation cohort. All patients in each cohort underwent thin-sliced (1 mm) enhanced computed tomography (CT) scans. We excluded individuals with diabetes, glucose intolerance, or albuminuria from this study. We evaluated preoperative factors including age, sex, hypertension, body mass index (BMI), serum uric acid, baseline eGFR, and body surface area (BSA)-adjusted preserved kidney volume (PKV) by using 3-dimensional reconstruction of thin-sliced enhanced CT images. To detect independent predictors, we performed multivariable regression analysis. RESULTS The multivariable regression analysis revealed that age, BMI, predonation eGFR, and BSA-adjusted PKV were independent predictors of eGFR at 1 year after kidney donation (correlation coefficient: -0.15, -0.476, 0.521, 0.127, respectively). A strong correlation between predicted eGFR and observed eGFR was obtained in the development cohort (r = 0.839, P < .0001). The significance of this predictive model was also confirmed with the external validation cohort (r = 0.797, P < .0001). CONCLUSIONS Age, BMI, predonation eGFR, and BSA-adjusted PKV may be useful for precisely predicting eGFR at 1 year after living kidney donation and be helpful to determine the feasibility of kidney donation from marginal donors.
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Shinoda K, Morita S, Akita H, Tamaki S, Takahashi R, Kono H, Asanuma H, Kikuchi E, Jinzaki M, Nakagawa K, Oya M. Pre-donation BMI and preserved kidney volume can predict the cohort with unfavorable renal functional compensation at 1-year after kidney donation. BMC Nephrol 2019; 20:46. [PMID: 30736760 PMCID: PMC6368798 DOI: 10.1186/s12882-019-1242-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 01/30/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The magnitude of renal function recovery after kidney donation differs in donors with a heterogeneous background. Preoperative assessment of candidates with potentially unfavorable renal functional compensation is critical when baseline kidney function is marginal. We explored the significance of preserved kidney volume (PKV) and known preoperative risk factors for the prediction of unfavorable renal function compensation. METHODS We enrolled 101 living donors for whom a 1-mm sliced enhanced computed tomography scan was performed preoperatively and clinical data could be collected up to 1 year after donation. The donors whose estimated glomerular filtration rate (eGFR) at 1 year after donation was 70% or higher of baseline eGFR were assigned to the "favorable renal compensation" group and the others to the "unfavorable renal compensation" group. RESULTS Age, sex, and preoperative serum uric acid level were not significant predictors for "unfavorable renal compensation." Multivariable logistic regression analysis revealed that body mass index (BMI) and body surface area (BSA)-adjusted PKV were independent preoperative risk factors for "unfavorable renal compensation" (adjusted odds ratio, 1.342 and 0.929, respectively). Hypertension and preoperative eGFR were not independent predictors when adjusted with BMI and BSA-adjusted PKV. Receiver operative characteristic analysis revealed that the predictive equation with the two independent predictors yielded a good accuracy to detect donor candidates with unfavorable renal functional compensation (area under the curve = 0.803), and the optimal cut-off values were identified as 23.4 kg/m2 for BMI and 107.3 cm3/m2 for BSA-adjusted PKV. CONCLUSIONS BMI and BSA-adjusted PKV may be useful to select candidates with potentially unfavorable renal function compensation before kidney donation.
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Affiliation(s)
- Kazunobu Shinoda
- Department of Urology, Keio University School of Medicine, Tokyo, 160-8582, Japan. .,Department of Nephrology, Toho University Faculty of Medicine, 7-5-23 Omorinishi Ota-ku, Tokyo, 143-0015, Japan.
| | - Shinya Morita
- Department of Urology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Hirotaka Akita
- Department of Diagnostic Radiology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Satoshi Tamaki
- Department of Urology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Ryohei Takahashi
- Department of Urology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Hidaka Kono
- Department of Urology, Tokyo Dental College Ichikawa General Hospital, Chiba, 272-8513, Japan
| | - Hiroshi Asanuma
- Department of Urology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Eiji Kikuchi
- Department of Urology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Masahiro Jinzaki
- Department of Diagnostic Radiology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Ken Nakagawa
- Department of Urology, Tokyo Dental College Ichikawa General Hospital, Chiba, 272-8513, Japan
| | - Mototsugu Oya
- Department of Urology, Keio University School of Medicine, Tokyo, 160-8582, Japan
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Abstract
Obesity is a leading cause of chronic kidney disease. Children with severe obesity have an increased prevalence of early kidney abnormalities and are at high risk to develop kidney failure in adulthood. The pathophysiology of obesity-related kidney disease is incompletely understood, although the postulated mechanisms of kidney injury include hyperfiltration, adipokine dysregulation, and lipotoxic injury. An improved understanding of the long-term effects of obesity on kidney health is essential treat the growing epidemic of obesity-related kidney disease. The purpose of this article is to review the epidemiology, pathophysiology, clinical features, and management of obesity-related kidney disease in children and adolescents.
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Affiliation(s)
- Edward Nehus
- Division of Nephrology and Hypertension, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC 7022, Cincinnati, OH 45229, USA.
| | - Mark Mitsnefes
- Division of Nephrology and Hypertension, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC 7022, Cincinnati, OH 45229, USA
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Wu C, Wang AY, Li G, Wang L. Association of high body mass index with development of interstitial fibrosis in patients with IgA nephropathy. BMC Nephrol 2018; 19:381. [PMID: 30594167 PMCID: PMC6310977 DOI: 10.1186/s12882-018-1164-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 11/29/2018] [Indexed: 12/21/2022] Open
Abstract
Background The worldwide prevalence of obesity is increasing. Obesity is associated with a variety of chronic diseases, including chronic kidney disease. Several studies suggested that body mass index (BMI) could be an independent risk factor for progression of IgA nephropathy (IgAN). However, whether high BMI is associated with progression of IgAN remains uncertain. Methods This retrospective study included patients with biopsy proven IgAN from 2006 to 2017 in Sichuan Provincial People’s Hospital. BMI was categorized according to the WHO Asian guideline: underweight (< 18.5 kg/m2), normal weight (18.5-25 kg/m2), overweight (25-28 kg/m2) and obese (≥28 kg/m2). The main outcome was development of end-stage renal disease (ESRD) or a decline in eGFR by at least 30%. The association of BMI and IgAN progression was determined by propensity-score-matched cohort analysis. Results Four hundred eighty one patients with IgAN were finally enrolled in this study. The mean age was 37 ± 11 years and 40.3% were men. There was no significant difference in clinical and pathological characteristics among the four-group patients categorized by BMI. After matching with propensity scores, no significant correlation between BMI and renal outcomes was seen. However, compared with the reference group (18.5≦BMI≦25 kg/m2), being overweight (odd ratio [OR], 2.28; 95%CI: 1.06–4.88; P = 0.034) and obese (OR, 3.43; 95%CI: 1.06–11.04; P = 0.039) was associated with a high risk of interstitial fibrosis. In the cross figure demonstrating the association of BMI subgroup and interstitial fibrosis on renal outcomes, ORs of interstitial fibrosis groups were higher than those of no interstitial fibrosis. Compared with other BMI subgroups, patients with 18.5-25 kg/m2 had lowest ORs. Conclusions High BMI and interstitial fibrosis were associated with progression of IgAN. Interstitial fibrosis appears to be common in IgAN patients with elevated BMI.
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Affiliation(s)
- Changwei Wu
- Renal Department and Nephrology Institute, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32 West 2nd Duan, 1st Circle Road, Qingyang District, Chengdu, Sichuan, 610072, People's Republic of China
| | - Amanda Y Wang
- Renal and metabolic division, The George institute for global health, Sydney, Australia.,The Faculty of medicine and health sciences, Macquarie University, Sydney, Australia
| | - Guisen Li
- Renal Department and Nephrology Institute, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32 West 2nd Duan, 1st Circle Road, Qingyang District, Chengdu, Sichuan, 610072, People's Republic of China.
| | - Li Wang
- Renal Department and Nephrology Institute, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32 West 2nd Duan, 1st Circle Road, Qingyang District, Chengdu, Sichuan, 610072, People's Republic of China
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23
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Lalan S, Jiang S, Ng DK, Kupferman F, Warady BA, Furth S, Mitsnefes MM. Cardiometabolic Risk Factors, Metabolic Syndrome, and Chronic Kidney Disease Progression in Children. J Pediatr 2018; 202:163-170. [PMID: 30041938 PMCID: PMC6203642 DOI: 10.1016/j.jpeds.2018.06.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 05/04/2018] [Accepted: 06/01/2018] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To estimate the prevalence of metabolic syndrome (MetS) and examine its association with chronic kidney disease progression in children enrolled in the Chronic Kidney Disease in Children study. STUDY DESIGN MetS was defined as being overweight or obese and having ≥2 cardiometabolic risk factors (CMRFs). Incidence and prevalence of MetS were assessed using pairs of visits approximately 2 years apart. RESULTS A total of 799 pairs of person-visits (contributed by 472 children) were included in the final analysis. Of these, 70% had a normal body mass index (BMI), 14% were overweight, and 16% were obese. At the first visit, the prevalence of MetS in the overweight group was 40% and in the obese group was 60%. In adjusted models, annual percent estimated glomerular filtration rate decline in those who had normal BMI and incident or persistent multiple CMRFs or those with persistent MetS was -6.33%, -6.46%, and -6.08% (respectively) compared with children who never had multiple CMRFs (-3.38%, P = .048, .045, and .036, respectively). Children with normal BMI and incident multiple CMRFs and those with persistent MetS had approximately twice the odds of fast estimated glomerular filtration rate decline (>10% per year) compared with those without multiple CMRFs and normal BMI. CONCLUSION Children with chronic kidney disease have a high prevalence of MetS. These children as well as those with normal BMI but multiple CMRFs experience a faster decline in kidney function.
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Affiliation(s)
- Shwetal Lalan
- Division of Pediatric Nephrology, Department of Pediatrics, Phoenix Children's Hospital, Phoenix, AZ; Department of Pediatrics, Brookdale University Hospital and Medical Center, Brooklyn, NY.
| | - Shuai Jiang
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Derek K Ng
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | | | | | - Susan Furth
- The Children’s Hospital of Philadelphia, Philadelphia, PA
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Joyce T, Chirino YI, Natalia MT, Jose PC. Renal damage in the metabolic syndrome (MetSx): Disorders implicated. Eur J Pharmacol 2018; 818:554-568. [DOI: 10.1016/j.ejphar.2017.11.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 11/14/2017] [Accepted: 11/16/2017] [Indexed: 02/08/2023]
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Conley SM, Zhu XY, Eirin A, Tang H, Lerman A, van Wijnen AJ, Lerman LO. Metabolic syndrome alters expression of insulin signaling-related genes in swine mesenchymal stem cells. Gene 2018; 644:101-6. [PMID: 29101070 DOI: 10.1016/j.gene.2017.10.086] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 10/31/2017] [Indexed: 12/13/2022]
Abstract
AIMS Metabolic syndrome (MetS) is associated with insulin resistance (IR) and impaired glucose metabolism in muscle, fat, and other cells, and may induce inflammation and vascular remodeling. Endogenous reparative systems, including adipose tissue-derived mesenchymal stem/stromal cells (MSC), are responsible for repair of damaged tissue. MSC have also been proposed as an exogenous therapeutic intervention in patients with cardiovascular and chronic kidney disease (CKD). The feasibility of using autologous cells depends on their integrity, but whether in MetS IR involves adipose tissue-derived MSC remains unknown. The aim of this study was to examine the expression of mRNA involved in insulin signaling in MSC from subjects with MetS. METHODS Domestic pigs consumed a lean or obese diet (n=6 each) for 16weeks. MSC were collected from subcutaneous abdominal fat and analyzed using high-throughput RNA-sequencing for expression of genes involved in insulin signaling. Expression profiles for enriched (fold change>1.4, p<0.05) and suppressed (fold change<0.7, p<0.05) mRNAs in MetS pigs were functionally interpreted by gene ontology analysis. The most prominently upregulated and downregulated mRNAs were further probed. RESULTS We identified in MetS-MSC 168 up-regulated and 51 down-regulated mRNAs related to insulin signaling. Enriched mRNAs were implicated in biological pathways including hepatic glucose metabolism, adipocyte differentiation, and transcription regulation, and down-regulated mRNAs in intracellular calcium signaling and cleaving peptides. Functional analysis suggested that overall these alterations could increase IR. CONCLUSIONS MetS alters mRNA expression related to insulin signaling in adipose tissue-derived MSC. These observations mandate caution during administration of autologous MSC in subjects with MetS.
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Abstract
The metabolic syndrome (MetS) is a cluster of cardiovascular risk factors including insulin resistance (IR), dyslipidemia, and hypertension, which may also foster development of chronic kidney disease. The mechanisms of MetS-induced kidney disease are not fully understood. The purpose of this review is to summarize recent discoveries regarding the impact of MetS on the kidney, particularly on the renal microvasculature and cellular mitochondria. Fundamental manifestations of MetS include IR and adipose tissue expansion, the latter promoting chronic inflammation and oxidative stress that exacerbate IR. Those in turn can elicit various kidney injurious events through endothelial dysfunction, activation of the renin-angiotensin-aldosterone system, and adipokine imbalance. Inflammation and IR are also major contributors to microvascular remodeling and podocyte injury. Hence, these events may result in hypertension, albuminuria, and parenchymal damage. In addition, dyslipidemia and excessive nutrient availability may impair mitochondrial function and thereby promote progression of kidney cell damage. Elucidation of the link between MetS and kidney injury may help develop preventative measures and possibly novel therapeutic targets to alleviate and avert development of renal manifestations.
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Affiliation(s)
- Xin Zhang
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minn
| | - Lilach O Lerman
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minn.
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Choi KH, Lee SR, Hong YK, Park DS. Compensatory Structural and Functional Adaptation After Nephrectomy in Obese Patients According to Waist Circumference. Urology 2017; 104:115-121. [PMID: 28232178 DOI: 10.1016/j.urology.2017.02.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/02/2017] [Accepted: 02/13/2017] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To investigate whether the postnephrectomy renal adaptation mechanism, focused on functional hyperfiltration as well as structural hypertrophy, was affected by abdominal obesity. MATERIALS AND METHODS We retrospectively evaluated 358 patients who underwent simple or radical nephrectomy and nephroureterectomy between 2009 and 2013. Patients were classified according to waist circumference (WC), with values >102 cm in men and >88 cm in women considered high (obesity). Functional renal volume (FRV) was measured using computed tomography performed preoperatively and 6 months postoperatively to evaluate the degree of remnant kidney hypertrophy. The degree of hyperfiltration was calculated from the difference between the preoperative and postoperative glomerular filtration rate (GFR)/FRV. RESULTS The mean preoperative GFR, FRV, and GFR/FRV were 72.1 mL/min/1.73 m2, 282.8 cm3, and 0.25 mL/min/1.73 m2/cm3, respectively. The percent GFR reduction was significantly greater in the high WC group (high, 25.9% vs normal, 16.0%, P = .036), although the degree of hypertrophic volume in the remnant kidney showed no difference. The change in GFR/FRV was statistically lower in the high WC group (high, 25.7% vs normal, 40.2%, P = .009). The factors associated with postoperative increased GFR/FRV were low preoperative GFR, proteinuria, high predictive preserved functional parenchymal volume ratio, absence of hypertension, increased levels of high-density lipoprotein cholesterol, and normal WC (all P < .05). CONCLUSION Patients with high WC might have a large reduction in postoperative renal function, owing to a lower degree of functional hyperfiltration.
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Affiliation(s)
- Kyung Hwa Choi
- Department Urology, CHA Bundang Medical Center, CHA University, Seongnam, Gyeonggi-do, Republic of Korea
| | - Seung Ryeol Lee
- Department Urology, CHA Bundang Medical Center, CHA University, Seongnam, Gyeonggi-do, Republic of Korea
| | - Young Kwon Hong
- Department Urology, CHA Bundang Medical Center, CHA University, Seongnam, Gyeonggi-do, Republic of Korea
| | - Dong Soo Park
- Department Urology, CHA Bundang Medical Center, CHA University, Seongnam, Gyeonggi-do, Republic of Korea.
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Abstract
Body mass index has been found to be the second most important contributor to relative risk for developing end state renal disease (ESRD), after proteinuria. The impact of obesity on the kidney includes a wide spectrum, from characteristic pathologic lesions to increment in urinary albumin excretion (UAE) and proteinuria/or decrease in glomerular filtration rate (GFR). The cause of renal disease associated to obesity is not well understood, but two relevant elements emerge. The first is the presence of obesity-related glomerulopathy, and the second is the fat deposit in the kidney with impact on renal haemodynamics and intrarenal regulation. The mechanisms linking obesity and renal damage are complex and include haemodynamic changes, inflammation, oxidative stress, apoptosis, and finally renal scarring. The protection of kidney damage needs to combine weight reduction with the proper control of the cardiometabolic risk factors associated, hypertension, metabolic syndrome, diabetes and dyslipidaemia. The search for specific treatments merits future research.
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Affiliation(s)
- Josep Redon
- Hypertension Clinic, Hospital Clinico of Valencia, University of Valencia and INCLIVA Research Institute, Valencia, Spain,
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Noguchi K, Kai H, Zempo H, Mizuno F, Hagiwara M, Morito N, Usui J, Saito C, Kuno S, Yamagata K. Both Diet and Exercise Are Necessary for Obese CKD Patients: A Pilot Prospective Randomized Controlled Study. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/ojneph.2016.62006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Boronat M, Bosch E, Lorenzo D, Quevedo V, López-Ríos L, Riaño M, García-Delgado Y, García-Cantón C. Prevalence and determinants of the metabolic syndrome among subjects with advanced nondiabetes-related chronic kidney disease in Gran Canaria, Spain. Ren Fail 2015; 38:198-203. [PMID: 26627145 DOI: 10.3109/0886022x.2015.1117904] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The relationship between the metabolic syndrome and mild chronic kidney disease (CKD) has been extensively studied. This study was aimed to estimate the prevalence and factors associated with the metabolic syndrome among subjects with advanced stages of nondiabetes-related CKD. METHODS Study population was composed of incident patients with advanced CKD not related to diabetes in a tertiary hospital from Gran Canaria (Spain) since February 2011 to December 2014. Participants fulfilled a survey questionnaire and underwent physical examination and biochemical evaluation. RESULTS The sample was composed of 167 subjects (mean age 63.9 ± 13.7 years; estimated glomerular filtration rate 21.9 ± 6.6 mL/min/1.73 m(2)). The prevalence of the metabolic syndrome was 68.9% (65.2% in men and 73.3% in women). Highest rates were observed in groups with chronic interstitial nephropathy (80%), CKD of uncertain etiology (76.7%) and CKD related to vascular causes (76.2%). Subjects with metabolic syndrome were older, had higher values of C-reactive protein and more often reported to have first-degree relatives with diabetes and to be physically inactive. In multivariate analyses, age (OR: 1.034 [CI 95%: 1.004-1.065]; p = 0.024) and family history of diabetes (OR: 2.550 [1.159-5.608]; p = 0.020) were independently associated with the metabolic syndrome. CONCLUSIONS The prevalence of the metabolic syndrome among subjects with advanced nondiabetes-related CKD is high, and greater than that observed in general Canarian population of similar age groups. Age and family history of diabetes are the two factors more strongly associated with the metabolic syndrome in this population.
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Affiliation(s)
- Mauro Boronat
- a Section of Endocrinology and Nutrition, Hospital Universitario Insular , Las Palmas de Gran Canaria , Spain ;,b Department of Medical and Surgical Sciences , University of Las Palmas de Gran Canaria , Spain
| | - Elvira Bosch
- c Service of Nephrology, Hospital Universitario Insular , Las Palmas de Gran Canaria , Spain
| | - Dionisio Lorenzo
- d Faculty of Health Sciences, University Fernando Pessoa-Canarias , Las Palmas de Gran Canaria , Spain
| | | | - Laura López-Ríos
- a Section of Endocrinology and Nutrition, Hospital Universitario Insular , Las Palmas de Gran Canaria , Spain
| | - Marta Riaño
- f Service of Clinical Biochemistry, Hospital Universitario Insular , Las Palmas de Gran Canaria , Spain
| | - Yaiza García-Delgado
- a Section of Endocrinology and Nutrition, Hospital Universitario Insular , Las Palmas de Gran Canaria , Spain
| | - César García-Cantón
- c Service of Nephrology, Hospital Universitario Insular , Las Palmas de Gran Canaria , Spain
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Yoon YE, Choi KH, Lee KS, Kim KH, Yang SC, Han WK. Impact of metabolic syndrome on postdonation renal function in living kidney donors. Transplant Proc 2015; 47:290-4. [PMID: 25769562 DOI: 10.1016/j.transproceed.2014.10.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 10/13/2014] [Accepted: 10/28/2014] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Optimization of kidney donor selection is critical to ensure recovery of the donor. The goal of this study was to determine the influence of metabolic syndrome on renal histology and perioperative renal function in living kidney donors. PATIENTS AND METHODS Between January 2010 and March 2013, a total of 363 living kidney donors who underwent donor nephrectomy at our institution were enrolled. Metabolic syndrome was diagnosed in patients according to the National Cholesterol Education Program's Adult Treatment Panel III, and renal histology of implantation biopsy specimens and perioperative renal function were compared in participants with or without metabolic syndrome. Using multivariate regression analysis, the goal was to identify which component of metabolic syndrome induces chronic histologic changes and delayed renal function recovery. RESULTS We identified 30 donors (8.45%) with metabolic syndrome. Donors with metabolic syndrome were older (48.4 ± 9.2 years vs 39.7 ± 11.4 years; P < .001) and more likely to have chronic histologic changes (36.8% vs 9.7%; P = .001) than subjects without metabolic syndrome. Results of the multivariate regression analysis indicated that obesity, hyperglycemia, and hypertriglyceridemia were independently associated with chronic histologic changes. Perioperative renal function was correlated with the presence of metabolic syndrome rather than with chronic histologic changes, and patients with metabolic syndrome were more likely to experience delayed renal function recovery. Linear regression models found that the sum of the metabolic components correlated with renal function 6 months postoperatively, but among all risk factors, only obesity was significantly associated with the occurrence of delayed renal function recovery (odds ratio, 2.67; P = .001). CONCLUSIONS Although metabolic syndrome in living kidney donors is characterized by chronic histologic changes, perioperative renal function is affected by the syndrome itself rather than by the histologic changes. Obesity is the most important metabolic factor for predicting delayed renal function recovery in living kidney donors, providing an important clinical indicator of postoperative renal function in these patients.
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Affiliation(s)
- Y E Yoon
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - K H Choi
- Department of Urology, CHA Bundang Medical Center, CHA University, Seongnam-si, South Korea
| | - K S Lee
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - K H Kim
- Department of Urology, Ewha Women's University Mokdong Hospital, Seoul, South Korea
| | - S C Yang
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - W K Han
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, South Korea.
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Abstract
During the past 50 years, a dramatic reduction in the mortality rate associated with cardiovascular disease has occurred in the US and other countries. Statistical modeling has revealed that approximately half of this reduction is the result of risk factor mitigation. The successful identification of such risk factors was pioneered and has continued with the Framingham Heart Study, which began in 1949 as a project of the US National Heart Institute (now part of the National Heart, Lung, and Blood Institute). Decreases in total cholesterol, blood pressure, smoking, and physical inactivity account for 24%, 20%, 12%, and 5% reductions in the mortality rate, respectively. Nephrology was designated as a recognized medical professional specialty a few years later. Hemodialysis was first performed in 1943. The US Medicare End-Stage Renal Disease (ESRD) Program was established in 1972. The number of patients in the program increased from 5,000 in the first year to more than 500,000 in recent years. Only recently have efforts for risk factor identification, early diagnosis, and prevention of chronic kidney disease (CKD) been undertaken. By applying the approach of the Framingham Heart Study to address CKD risk factors, we hope to mirror the success of cardiology; we aim to prevent progression to ESRD and to avoid the cardiovascular complications associated with CKD. In this paper, we present conceptual examples of risk factor modification for CKD, in the setting of this historical framework.
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Affiliation(s)
- Walter G. Wasser
- Division of Nephrology, Mayanei HaYeshua Medical Center, Bnei Brak, Israel
- Division of Nephrology, Rambam Health Care Campus, Haifa, Israel
- To whom correspondence should be addressed. E-mail:
| | - Amnon Gil
- Division of Nephrology, Carmel Medical Center, Haifa, Israel
| | - Karl L. Skorecki
- Division of Nephrology, Rambam Health Care Campus, Haifa, Israel
- Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
- Director of Medical and Research Development, Rambam Health Care Campus, Haifa, Israel
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Taner T, Iqbal CW, Textor SC, Stegall MD, Ishitani MB. Compensatory hypertrophy of the remaining kidney in medically complex living kidney donors over the long term. Transplantation 2015; 99:555-9. [PMID: 25136845 DOI: 10.1097/TP.0000000000000356] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The criteria for living kidney donation are changing, resulting in increased numbers of individuals with risk factors being accepted as donors. The long-term function and volume changes in the remaining kidney of these medically complex donors remain largely unknown. METHODS Living kidney donors with three separate risk factors (older age, obesity, or hypertension) were reevaluated 5 years after donation. The function and volume of the remaining kidney were assessed and compared to those of standard donors. RESULTS The body size correlated significantly with the kidney size and glomerular filtration rate (GFR) at the time of donation. Five years after donation, the remaining kidney size increased by a mean of 29.3%, and the GFR by 35.6%. The increase in GFR was uniform. In univariate analysis, neither the changes in the size nor the changes in the 1GFR were found to be associated with the risk factors. CONCLUSION Medically complex living donors demonstrate similar compensatory increase in function and volume of the remaining kidney compared to standard donors, 5 years after donation.
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Li Cavoli G, Passantino R, Ferrantelli A, Tralongo A, Servillo F, Li Cavoli TV, Tralongo P, Palmeri M, Ferrantelli G, Ugo R. Acute kidney injury in a patient with metabolic syndrome. ACTA ACUST UNITED AC 2015; 5:155-7. [PMID: 26457254 PMCID: PMC4597164 DOI: 10.15171/bi.2015.13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 03/26/2015] [Accepted: 03/26/2015] [Indexed: 01/24/2023]
Abstract
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Introduction: The metabolic syndrome (MS) encompasses many metabolic abnormalities and the insulin resistance is considered as one of the most significant denominators. The chronic kidney disease (CKD) is an emerging health problem but only few patients would reach the end stage renal disease. There exists an increasing strong association between MS and CKD, but up until now the link between MS and CKD is unclear and there are few studies regarding the renal histology in MS.
Methods: We describe an acute tubulointerstitial nephritis case, due to both infective and pharmacological aetiology, overlapping relevant histological changes (focal segmental glomerulosclerosis [FSG], hyaline arteriosclerosis) in a patient with MS and previously normal renal function. Despite the severe vascular finding (elevated renal arterial resistive index), the patient recovered a normal renal function.
Results: We reviewed the kidney pathological studies in MS and analyzed the principal renal histological images of glomerulomegaly, segmental glomerulosclerosis, and obesity-related glomerulopathy.
Conclusion: Despite the strong association, the renal involvement in MS has not been proven. A greater knowledge of the combination of histological renal changes in MS can help to understand the pathophysiological mechanism(s) of MS.
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Affiliation(s)
| | - Rita Passantino
- Pathologic Anatomy, Civico and Di Cristina Hospital, Palermo, Italy
| | | | - Angelo Tralongo
- Nephrology-Dialysis, Civico and Di Cristina Hospital, Palermo, Italy
| | - Franca Servillo
- Nephrology-Dialysis, Civico and Di Cristina Hospital, Palermo, Italy
| | | | - Pietro Tralongo
- Nephrology-Dialysis, Civico and Di Cristina Hospital, Palermo, Italy
| | - Mattia Palmeri
- Nephrology-Dialysis, Civico and Di Cristina Hospital, Palermo, Italy
| | | | - Rotolo Ugo
- Nephrology-Dialysis, Civico and Di Cristina Hospital, Palermo, Italy
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Wang C, Blough E, Arvapalli R, Dai X, Triest WE, Leidy JW, Masannat Y, Wu M. Acetaminophen attenuates glomerulosclerosis in obese Zucker rats via reactive oxygen species/p38MAPK signaling pathways. Free Radic Biol Med 2015; 81:47-57. [PMID: 25614458 DOI: 10.1016/j.freeradbiomed.2015.01.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 12/05/2014] [Accepted: 01/11/2015] [Indexed: 01/09/2023]
Abstract
Focal segmental glomerulosclerosis is a critical pathological lesion in metabolic syndrome-associated kidney disease that, if allowed to proceed unchecked, can lead to renal failure. However, the exact mechanisms underlying glomerulosclerosis remain unclear, and effective prevention strategies against glomerulosclerosis are currently limited. Herein, we demonstrate that chronic low-dose ingestion of acetaminophen (30 mg/kg/day for 6 months) attenuates proteinuria, glomerulosclerosis, podocyte injury, and inflammation in the obese Zucker rat model of metabolic syndrome. Moreover, acetaminophen treatment attenuated renal fibrosis and the expression of profibrotic factors (fibronectin, connective tissue growth factor, transforming growth factor β), reduced inflammatory cell infiltration into the glomeruli, and decreased the expression of monocyte chemoattractant protein, glutathione (GSH) reductase, and nuclear factor erythroid 2-related factor 2, but increased the level of GSH synthetase in obese animals. Further in vivo and in vitro studies using human renal mesangial cells exposed to high glucose or hydrogen peroxide suggested that the renoprotective effects of acetaminophen are characterized by diminished renal oxidative stress and p38MAPK hyperphosphorylation.
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Affiliation(s)
- Cuifen Wang
- Center for Diagnostic Nanosystems, Marshall University, Huntington, WV 25755, USA; School of Pharmacy, Marshall University, Huntington, WV 25755, USA; Southeast University, Nanjing, Jiangsu, China
| | - Eric Blough
- Center for Diagnostic Nanosystems, Marshall University, Huntington, WV 25755, USA; School of Pharmacy, Marshall University, Huntington, WV 25755, USA.
| | - Ravikumar Arvapalli
- Center for Diagnostic Nanosystems, Marshall University, Huntington, WV 25755, USA; School of Pharmacy, Marshall University, Huntington, WV 25755, USA
| | - Xiaoniu Dai
- Southeast University, Nanjing, Jiangsu, China
| | | | - John W Leidy
- Huntington VA Medical Center, Huntington, WV 25704, USA
| | - Yanal Masannat
- Department of Internal Medicine, Joan C. Edwards School of Medicine, Huntington, WV 25755, USA
| | - Miaozong Wu
- Center for Diagnostic Nanosystems, Marshall University, Huntington, WV 25755, USA; School of Pharmacy, Marshall University, Huntington, WV 25755, USA; Department of Internal Medicine, Joan C. Edwards School of Medicine, Huntington, WV 25755, USA.
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Karami M, Rahimi F, Tajadini M. The evaluation and comparison of kidney length obtained from axial cuts in spiral CT scan with its true length. Adv Biomed Res 2015; 4:19. [PMID: 25709984 PMCID: PMC4333429 DOI: 10.4103/2277-9175.149850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 06/17/2013] [Indexed: 12/03/2022] Open
Abstract
Background: Increased size of kidney is the main symptom of pyelonephritis and renal ischemia in children. Ultrasound and computed tomography (CT) scan methods are the imaging methods for evaluating the urogenital system. The aim of this study is to compare the kidney length obtained from spiral CT scan with the true length obtained from multi-slice CT. Materials and Methods: From 100 patients 200 kidneys were examined in Alzahra Hospital in 2012. Multi-slice CT was used to obtain coronal and sagittal cuts to find the length of kidneys. Results: The mean values of true size of axial sections of the right and left kidneys were 108.37 ± 12.3 mm and 109.74 ± 13.6 mm, respectively. The mean difference of axial sections’ lengths in the right and left kidneys was 1.37 ± 1.22 mm. The mean values of length in the spiral CT scan of the right and left kidneys were 98.61 ± 15.8 mm and 103.11 ± 15.9 mm, respectively. The difference in the estimated size by multi-slice CT scan in oblique and axial images was significant (9.77 ± 1.19 mm and 6.63 ± 0.8 mm for the right and left kidneys, respectively (P < 0.001). Conclusion: The average size of both kidneys determined in axial images was smaller than the actual size. The estimation of kidney size in axial images is not reliable, and to obtain the actual size, it is required to have the coronal and sagittal cuts with proper quality, which could be achieved by multi-slice method.
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Affiliation(s)
- Mehdi Karami
- Department of Radiology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farshad Rahimi
- General Physician, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammadhasan Tajadini
- Applied Physiology research center, Isfahan University of Medical Sciences, Isfahan, Iran
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Prasad GVR. Metabolic syndrome and chronic kidney disease: Current status and future directions. World J Nephrol 2014; 3:210-219. [PMID: 25374814 PMCID: PMC4220353 DOI: 10.5527/wjn.v3.i4.210] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 08/26/2014] [Accepted: 09/24/2014] [Indexed: 02/06/2023] Open
Abstract
Metabolic syndrome (MetS) is a term used to denote a combination of selected, widely prevalent cardiovascular disease (CVD)-related risk factors. Despite the ambiguous definition of MetS, it has been clearly associated with chronic kidney disease markers including reduced glomerular filtration rate, proteinuria and/or microalbuminuria, and histopathological markers such as tubular atrophy and interstitial fibrosis. However, the etiological role of MetS in chronic kidney disease (CKD) is less clear. The relationship between MetS and CKD is complex and bidirectional, and so is best understood when CKD is viewed as a common progressive illness along the course of which MetS, another common disease, may intervene and contribute. Possible mechanisms of renal injury include insulin resistance and oxidative stress, increased proinflammatory cytokine production, increased connective tissue growth and profibrotic factor production, increased microvascular injury, and renal ischemia. MetS also portends a higher CVD risk at all stages of CKD from early renal insufficiency to end-stage renal disease. Clinical interventions for MetS in the presence of CKD should include a combination of weight reduction, appropriate dietary modification and increase physical activity, plus targeting of individual CVD-related risk factors such as dysglycemia, hypertension, and dyslipidemia while conforming to relevant national societal guidelines.
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Lin JH, Wu HC, Huang WH, Lu CL, Cheng MH, Wang HT, Yen TH, Wang WJ. Association between management of metabolic syndrome and progression of early-stage chronic kidney disease: an observational cohort study. Ren Fail 2014; 37:29-36. [PMID: 25268833 DOI: 10.3109/0886022x.2014.964140] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVES To analyze the effect of treating metabolic syndrome (MetS) on further kidney function decline in patients with early-stage chronic kidney disease (CKD). METHODS In a study period of 24 months, 162 patients with early stage CKD were enrolled. Baseline and follow-up data related to the occurrence of MetS and glomerular filtration rate (GFR) were assessed. Subjects were classified into controlled MetS (group 1) and uncontrolled MetS (group 2). Furthermore, they were subdivided into four subgroups: (A) controlled MetS at baseline and at follow-up, (B) uncontrolled MetS at baseline but controlled MetS at follow-up visits, (C) controlled MetS at baseline but uncontrolled MetS at follow-up visits, and (D) uncontrolled MetS at baseline and follow-up visits. RESULTS Final GFR was lower in group 2 versus group 1 (69.21 ± 20.20 vs. 82.86 ± 22.33 mL/min/1.73 m(2), p <0.001). The presence of MetS had high risk to develop late-stage CKD (HR = 3.279, 95% CI: 1.545-6.958, p = 0.002). Moreover, subgroup D (HR = 2.982, 95% CI: 1.287-6.908, p = 0.011) and the presence of three (p = 0.026) or four (p = 0.049) metabolic components had high risk to develop late-stage CKD. CONCLUSION Treating MetS slows CKD progression in patients with early-stage of CKD.
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Affiliation(s)
- Jui-Hsiang Lin
- Division of Nephrology, Department of Internal Medicine, Tao Yuan General Hospital, Ministry of Health and Welfare , Taoyuan , Taiwan
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Abstract
Both metabolic syndrome (MetS) and chronic kidney disease (CKD) are increasing in incidence and lead to significant cardiovascular morbidity and mortality. The relationship between these two entities is complex. Individual components of the MetS are known risk factors for incident kidney disease, but it is not clear how the clustering of these components is linked to the development and progression of kidney disease. Cross-sectional studies show an association of the MetS and prevalent CKD; however, one cannot draw conclusions as to which came first - the MetS or the kidney disease. Observational studies suggest a relationship between MetS and incident CKD, but they also demonstrate the development of MetS in patients with established CKD. These observations suggest a bidirectional relationship. A better understanding of the relationship between components of the MetS and whether and how these components contribute to progression of CKD and incident cardiovascular disease could inform more effective prevention strategies.
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Affiliation(s)
- Khaled Nashar
- Division of Nephrology and Hypertension, Allegheny General Hospital, Pittsburgh, PA, USA
| | - Brent M Egan
- Care Coordination Institute and Greenville Health System, Greenville, SC, USA
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40
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Huang JC, Chen SC, Lin MY, Chang JM, Hwang SJ, Tsai JC, Chen HC. Association of relatives of hemodialysis patients with metabolic syndrome, albuminuria and Framingham Risk Score. PLoS One 2014; 9:e96362. [PMID: 24804770 PMCID: PMC4012957 DOI: 10.1371/journal.pone.0096362] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Accepted: 04/05/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND AND AIM Metabolic syndrome (MetS), albuminuria, and the Framingham Risk Score (FRS) are significant predictors for cardiovascular disease (CVD). However, the relationship and clinical significance of these CVD predictors in individuals with a family history of end-stage renal disease (ESRD) are unclear. We investigated the association of relatives of hemodialysis (HD) patients with MetS, albuminuria, and the FRS. METHODS One hundred and sixty-six relatives of HD patients and 374 age- and sex- matched community controls were enrolled. MetS was defined using the Adult Treatment Panel III for Asians. Albuminuria was defined as urine albumin-to-creatinine ratio ≥ 30 mg/g. CVD risk was evaluated by the FRS. RESULTS A significantly higher prevalence of MetS (19.9% vs. 12.5%, P = 0.026), albuminuria (12.7% vs. 5.1%, P = 0.002) and high FRS risk ≥ 10% of 10-year risk (15.7% vs. 8.5%, P = 0.013) was found in relatives of HD patients compared to their counterpart controls. In multivariate analysis, being relatives of HD patients (vs. controls) was an independent determinant for MetS (odds ratio [OR], 1.785; 95% confidence interval [CI], 1.045 to 3.050), albuminuria (OR, 2.891; 95% CI, 1.431 to 5.841), and high FRS risk (OR, 1.863; 95% CI, 1.015 to 3.418). Higher low-density lipoprotein cholesterol (OR, 1.034; 95% CI, 1.017 to 1.052) and betel nut chewing (OR, 13.994; 95% CI, 3.384 to 57.871) were independent determinants for having a high FRS risk in relatives of HD patients. CONCLUSIONS Being relatives of HD patients was independently associated with MetS, albuminuria and high FRS risk, suggesting family members of ESRD patients may have higher CVD risks through the interactions of renal risk factors. Proactive surveillance of these CVD predictors and preventive strategies should be targeted to this high-risk population.
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Affiliation(s)
- Jiun-Chi Huang
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Internal Medicine, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Szu-Chia Chen
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Internal Medicine, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Yen Lin
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jer-Ming Chang
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Internal Medicine, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Renal Care, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shang-Jyh Hwang
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Renal Care, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jer-Chia Tsai
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Renal Care, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- * E-mail:
| | - Hung-Chun Chen
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Renal Care, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Abstract
The epidemic of obesity and metabolic syndrome (MS) contributes to the rapid growth of chronic kidney disease (CKD) and end-stage renal disease (ESRD). There is a reverse epidemiology, known as the "obesity paradox," in ESRD patients receiving maintenance dialysis. Obese patients are routinely referred for kidney transplant, and they have more surgical and medical complications than non-obese patients. However, compared to dialysis, kidney transplant provides a survival benefit for obese patients. After kidney transplant, obese patients tend to gain more body weight, and non-obese patients can develop new-onset obesity/MS. Obesity/MS is not only associated with serious morbidities, but also compromises the long-term graft and patient survival. The immunosuppressive drugs commonly used as maintenance therapy, including corticosteroids, calcineurin inhibitors and mammalian target-of-rapamycin inhibitors, contribute to obesity/MS. Development of novel immunosuppressive drugs free of metabolic adverse effects is needed, so that the full potential and benefits of kidney transplantation can be realized.
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42
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Affiliation(s)
- Kymberly D Watt
- Division of Gastroenterology and Hepatology, William J. von Liebig Transplant Center, Mayo Clinic and Foundation, Rochester, MN
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Ohashi Y, Thomas G, Nurko S, Stephany B, Fatica R, Chiesa A, Rule AD, Srinivas T, Schold JD, Navaneethan SD, Poggio ED. Association of metabolic syndrome with kidney function and histology in living kidney donors. Am J Transplant 2013; 13:2342-51. [PMID: 23865821 PMCID: PMC3886854 DOI: 10.1111/ajt.12369] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 05/06/2013] [Accepted: 05/08/2013] [Indexed: 01/25/2023]
Abstract
The selection of living kidney donors is based on a formal evaluation of the state of health. However, this spectrum of health includes subtle metabolic derangements that can cluster as metabolic syndrome. We studied the association of metabolic syndrome with kidney function and histology in 410 donors from 2005 to 2012, of whom 178 donors were systematically followed after donation since 2009. Metabolic syndrome was defined as per the NCEP ATPIII criteria, but using a BMI > 25 kg/m(2) instead of waist circumference. Following donation, donors received counseling on lifestyle modification. Metabolic syndrome was present in 50 (12.2%) donors. Donors with metabolic syndrome were more likely to have chronic histological changes on implant biopsies than donors with no metabolic syndrome (29.0% vs. 9.3%, p < 0.001). This finding was associated with impaired kidney function recovery following donation. At last follow-up, reversal of metabolic syndrome was observed in 57.1% of donors with predonation metabolic syndrome, while only 10.8% of donors developed de novo metabolic syndrome (p < 0.001). In conclusion, metabolic syndrome in donors is associated with chronic histological changes, and nephrectomy in these donors was associated with subsequent protracted recovery of kidney function. Importantly, weight loss led to improvement of most abnormalities that define metabolic syndrome.
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Affiliation(s)
- Y. Ohashi
- Department of Nephrology and Hypertension, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - G. Thomas
- Department of Nephrology and Hypertension, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - S. Nurko
- Department of Nephrology and Hypertension, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - B. Stephany
- Department of Nephrology and Hypertension, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - R. Fatica
- Department of Nephrology and Hypertension, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - A. Chiesa
- Department of Pathology, Cleveland Clinic, Cleveland, OH
| | - A. D. Rule
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN
| | - T. Srinivas
- Department of Nephrology and Hypertension, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - J. D. Schold
- Department of Nephrology and Hypertension, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH,Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH
| | - S. D. Navaneethan
- Department of Nephrology and Hypertension, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - E. D. Poggio
- Department of Nephrology and Hypertension, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH,Corresponding author: Emilio D. Poggio,
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Carbone F, Montecucco F, Mach F, Pontremoli R, Viazzi F. The liver and the kidney: two critical organs influencing the atherothrombotic risk in metabolic syndrome. Thromb Haemost 2013; 110:940-58. [PMID: 23966104 DOI: 10.1160/th13-06-0499] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 07/12/2013] [Indexed: 02/07/2023]
Abstract
The increased atherothrombotic risk in patients with metabolic syndrome (MetS) has been classically explained by the multiplicative effect of systemic concomitant pro-atherosclerotic factors. In particular, centripetal obesity, dyslipidaemia, glucose intolerance, hypertension (differently combined in the diagnosis of the disease) would be expected to act as classical cardiovascular risk conditions underlying accelerated atherogenesis. In order to better understand specific atherosclerotic pathophysiology in MetS, emerging evidence focused on the alterations in different organs that could serve as both pathophysiological targets and active players in the disease. Abnormalities in adipose tissue, heart and arteries have been widely investigated in a variety of basic research and clinical studies in MetS. In this narrative review, we focus on pathophysiological activities of the liver and kidney. Considering its key role in metabolism and production of soluble inflammatory mediators (such as C-reactive protein [CRP]), the liver in MetS has been shown to be altered both in its structure and function. In particular, a relevant amount of the fat accumulated within this organ has been shown to be associated with different degrees of inflammation and potential insulin resistance. In humans, non-alcoholic fatty liver disease (NAFLD) has been described as the hepatic manifestation of MetS. In an analogous manner, epidemiological evidence strongly suggested a "guilty" association between MetS and chronic kidney disease (CKD). Some biomarkers of hepatic (such as C-reactive protein, TNF-alpha or other cytokines) and renal diseases (such as uric acid) associated with MetS might be particularly useful to better manage and prevent the atherothrombotic risk.
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Affiliation(s)
- F Carbone
- Dr. Fabrizio Montecucco, MD, PhD, Cardiology Division, Foundation for Medical Researches, Department of Internal Medicine, University of Geneva, 64 Avenue Roseraie, 1211 Geneva, Switzerland, Tel: +41 22 382 72 38, Fax: +41 22 382 72 45, E-mail:
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Fenske W, Athanasiou T, Harling L, Drechsler C, Darzi A, Ashrafian H. Obesity-related cardiorenal disease: the benefits of bariatric surgery. Nat Rev Nephrol 2013; 9:539-51. [PMID: 23917797 DOI: 10.1038/nrneph.2013.145] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The inexorable increase in the prevalence of obesity is a global health concern, which will result in a concomitant escalation in health-care costs. Obesity-related metabolic syndrome affects approximately 25% of adults and is associated with cardiovascular and renal disease. The heart and kidneys are physiologically interdependent, and the pathological effects of obesity can lead to cardiorenal syndrome and, ultimately, kidney and heart failure. Weight loss can prevent or ameliorate obesity-related cardiorenal syndrome, but long-term maintenance of a healthy weight has been difficult to achieve through lifestyle changes or pharmacotherapy. Bariatric surgery offers both sustained weight loss and favourable metabolic changes, including dramatic improvements in glycaemic control and symptoms of type 2 diabetes mellitus. Procedures such as Roux-en-Y gastric bypass offer immediate multisystemic benefits, including bile flow alteration, reduced gastric size, anatomical gut rearrangement and altered flow of nutrients, vagal manipulation and enteric hormone modulation. In patients with cardiorenal syndrome, bariatric surgery also offers renoprotection and cardioprotection, and attenuates both kidney and heart failure by improving organ perfusion and reversing metabolic dysfunction. However, further research is required to understand how bariatric surgery acts on the cardiorenal axis, and its pioneering role in novel treatments and interventions for cardiorenal disease.
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Abstract
PURPOSE OF REVIEW The association of the metabolic syndrome (MetS) with cardiovascular risk, mortality, type 2 diabetes mellitus, stroke, nonfatty liver disease and gout is well known. However, the association of the MetS with chronic kidney disease (CKD) is now emerging. This review discusses the epidemiology, pathology and potential mechanisms for the relationship of MetS with CKD. RECENT FINDINGS Studies show that patients with MetS have a 2.5-fold higher risk of developing CKD. The risk of microalbuminuria is also increased two-fold in the MetS. Renal dysfunction becomes apparent long before the appearance of hypertension or diabetes in MetS. Compared with healthy controls, patients with MetS have increased microvascular disease-tubular atrophy, interstitial fibrosis, arterial sclerosis and global and segmental sclerosis. Studies suggest that the renal fibrosis seen in MetS might be caused by a constellation of insulin resistance, hypertension, dyslipidemias and inflammation, and result in a heightened expression of adipocytokines, angiotensin and inflammatory cytokines such as interleukin-6 and tumour necrosis factor-alpha. SUMMARY Despite the strong association of MetS with CKD, a causal relationship has not been proven. More studies are needed to precisely elucidate the mechanisms that might lead upstream factors such as insulin resistance, hypertension, dyslipidemia and inflammation to cause renal fibrosis.
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Abstract
AbstractDiabetic nephropathy (DN) is a leading cause of morbidity and mortality in diabetic patients representing a huge health and economic burden. Alarming recent data described diabetes as an unprecedented worldwide epidemic, with a prevalence of ∼6.4% of the world population in 2010, while the prevalence of CKD among diabetics was approximately 40%. With a clinical field hungry for novel markers predicting DN, several clinical and laboratory markers were identified lately with the promise of reliable DN prediction. Among those are age, gender, hypertension, smoking, sex hormones and anemia. In addition, eccentric left ventricular geometric patterns, detected by echocardiography, and renal hypertrophy, revealed by ultrasonography, are promising new markers predicting DN development. Serum and urinary markers are still invaluable elements, including serum uric acid, microalbuminuria, macroalbuminuria, urinary liver-type fatty acid-binding protein (u-LFABP), and urinary nephrin. Moreover, studies have illustrated a tight relationship between obstructive sleep apnea and the development of DN. The purpose of this review is to present the latest advances in identifying promising predictors to DN, which will help guide the future research questions in this field. Aiming at limiting this paramount threat, further efforts are necessary to identify and control independent modifiable risk factors, while developing an integrative algorithm for utilization in DN future screening programs.
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Gluba A, Mikhailidis DP, Lip GY, Hannam S, Rysz J, Banach M. Metabolic syndrome and renal disease. Int J Cardiol 2013; 164:141-50. [DOI: 10.1016/j.ijcard.2012.01.013] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 10/31/2011] [Accepted: 01/06/2012] [Indexed: 02/07/2023]
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Navaneethan SD, Schold JD, Kirwan JP, Arrigain S, Jolly SE, Poggio ED, Beddhu S, Nally JV. Metabolic syndrome, ESRD, and death in CKD. Clin J Am Soc Nephrol 2013; 8:945-52. [PMID: 23411425 DOI: 10.2215/cjn.09870912] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND AND OBJECTIVES Previous studies reported an association between metabolic syndrome , incident CKD, and proteinuria. This study examined the associations between metabolic syndrome and its components with ESRD and death among those patients with stages 3 and 4 CKD (estimated GFR=15-59 ml/min per 1.73 m(2)). DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Patients with stages 3 and 4 CKD (n=25,868) who had data relating to metabolic syndrome and were followed in our health care system were identified using an electronic medical record-based registry. Cox proportional hazards models and competing risk analyses were used to study the associations between metabolic syndrome, its components (elevated BP, low HDL cholesterol, elevated serum triglycerides, impaired glucose metabolism, and obesity), and all-cause mortality and ESRD while adjusting for demographics, comorbid conditions, use of relevant medications, and renal function. RESULTS Sixty percent of the study population (n=15,605) had metabolic syndrome. In the multivariate-adjusted analysis, presence of metabolic syndrome was associated with an increased risk for ESRD (hazard ratio=1.33, 95% confidence interval=1.08, 1.64) but not death (hazard ratio=1.04, 95% confidence interval=0.97, 1.12) during a mean follow-up of 2.3 years. Among the individual components of metabolic syndrome, impaired glucose metabolism, elevated triglycerides, and hypertension were associated with increased risk for ESRD, whereas low HDL cholesterol and impaired glucose metabolism were associated with higher risk of death. CONCLUSIONS Presence of metabolic syndrome is associated with ESRD but not death in patients with stages 3 and 4 CKD.
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Affiliation(s)
- Sankar D Navaneethan
- Department of Nephrology and Hypertension, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA.
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Abstract
Chronic kidney disease (CKD) is an emerging non-communicable disease worldwide. The Arab countries have a high prevalence of CKD risk factors, e.g. diabetes, obesity and hypertension. Unfortunately, the magnitude of CKD in the Arab world has not been studied well. This review presents the current data on CKD in the Arab world and proposes a call for action to address this rising epidemic.
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Affiliation(s)
- Youssef M K Farag
- Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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