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Deng Y, Wu Q, Tan X, Ye W, Liao G, Yang J. Twenty-four-hour urinary protein excretion in uncomplicated singleton pregnancy. Am J Obstet Gynecol 2024; 231:257.e1-257.e12. [PMID: 38101528 DOI: 10.1016/j.ajog.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND Twenty-four-hour urinary total protein excretion is an essential parameter used for evaluation of renal function and early detection of gestational complications. However, data on reference ranges of 24-hour urinary total protein excretion in normal pregnancy are scarce. OBJECTIVE This study aimed to determine reference ranges for 24-hour urinary total protein excretion in a population with uncomplicated singleton pregnancies using a standard method for urinary total protein. In addition, the values of 24-hour urinary total protein were stratified by maternal age and prepregnancy body mass index. STUDY DESIGN This study was based on a prospective cohort study in Shenzhen, China. The pregnant women were enrolled at their first prenatal clinical visit. All the participants were instructed to collect 24-hour urine samples during the following successive gestational periods: 6+0 to 13+6, 14+0 to 27+6, and 28+0 to 41+6 weeks. Total urinary protein excretion was analyzed by a colorimetric method. Ultimately, the study encompassed a total of 4844 pregnant women with uncomplicated pregnancies. The nonparametric percentile method was used to determine reference ranges for 24-hour urinary total protein excretion during different trimesters in women with uncomplicated pregnancies (excluding those with previous kidney disorders, gestational or chronic hypertension, preeclampsia, and pregestational diabetes mellitus, among others). RESULTS The 24-hour urinary total protein levels expressed as medians and percentiles (5th, 95th) for each trimester were as follows: 72.0 (28.4, 165.0), 88.0 (34.0, 185.0), and 108.0 (37.5, 258.0) mg in the first, second, and third trimesters, respectively. A significant increase in 24-hour urinary total protein excretion was observed throughout pregnancy (all P values <.001). Moreover, 24-hour urinary total protein levels were higher in the older (≥35 years) than in the younger (<35 years) group from mid-gestation. Specifically, the median (interquartile range) 24-hour urinary total protein levels by age were 72.2 (50.6-100.0) vs 70.5 (50.5-100.0) mg, 85.8 (62.0-117.0) vs 96.0 (68.0-127.8) mg, and 106.6 (76.0-146.2) vs 114.7 (81.5-153.6) mg in the first, second, and third trimesters, respectively. In addition, 24-hour proteinuria was significantly increased in higher-weight (overweight or obese) subgroups compared with lower-weight (underweight or normal-weight) subgroups (all P values <.05). CONCLUSION Our study provides reference values for 24-hour urinary total protein excretion with apparently uncomplicated pregnancies. Understanding these changes in low-risk pregnancies is essential for optimizing maternal management.
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Affiliation(s)
- Yuguo Deng
- Department of Obstetrics, Longgang District Maternity and Child Healthcare Hospital of Shenzhen City, Shenzhen, China; Longgang Maternity and Child Clinical Institute, Shantou University Medical College, Shenzhen, China
| | - Qiulu Wu
- Department of Obstetrics, Longgang District Maternity and Child Healthcare Hospital of Shenzhen City, Shenzhen, China; Longgang Maternity and Child Clinical Institute, Shantou University Medical College, Shenzhen, China
| | - Xiaoyu Tan
- Department of Obstetrics, Longgang District Maternity and Child Healthcare Hospital of Shenzhen City, Shenzhen, China; Longgang Maternity and Child Clinical Institute, Shantou University Medical College, Shenzhen, China
| | - Wei Ye
- Department of Obstetrics, Longgang District Maternity and Child Healthcare Hospital of Shenzhen City, Shenzhen, China; Longgang Maternity and Child Clinical Institute, Shantou University Medical College, Shenzhen, China
| | - Guilian Liao
- Department of Obstetrics, Longgang District Maternity and Child Healthcare Hospital of Shenzhen City, Shenzhen, China; Longgang Maternity and Child Clinical Institute, Shantou University Medical College, Shenzhen, China
| | - Jinying Yang
- Department of Obstetrics, Longgang District Maternity and Child Healthcare Hospital of Shenzhen City, Shenzhen, China; Longgang Maternity and Child Clinical Institute, Shantou University Medical College, Shenzhen, China.
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Guo J, Liu C, Wang Y, Shao B, Fong TL, Lau NC, Zhang H, Li H, Wang J, Lu X, Wang A, Leung CL, Chia XW, Li F, Meng X, He Q, Chen H. Dose-response association of diabetic kidney disease with routine clinical parameters in patients with type 2 diabetes mellitus: a systematic review and meta-analysis. EClinicalMedicine 2024; 69:102482. [PMID: 38374967 PMCID: PMC10875261 DOI: 10.1016/j.eclinm.2024.102482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/21/2024] Open
Abstract
Background Diabetic kidney disease (DKD) is a leading cause of end-stage kidney disease and is associated with high mortality rates. The influence of routine clinical parameters on DKD onset in patients with type 2 diabetes mellitus (T2DM) remains uncertain. Methods In this systematic review and meta-analysis, we searched multiple databases, including PubMed, Embase, Scopus, Web of Science, and Cochrane Library, for studies published from each database inception until January 11, 2024. We included cohort studies examining the association between DKD onset and various clinical parameters, including body mass index (BMI), hemoglobin A1c (HbA1c), systolic blood pressure (SBP), diastolic blood pressure (DBP), total cholesterol (TC), triglycerides (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL), and serum uric acid (UA). Random-effect dose-response meta-analyses utilizing one-stage and/or cubic spline models, were used to estimate correlation strength. This study is registered in PROSPERO (CRD42022326148). Findings This analysis of 46 studies involving 317,502 patients found that in patients with T2DM, the risk of DKD onset increased by 3% per 1 kg/m2 increase in BMI (relative risk (RR) = 1.03, confidence interval (CI) [1.01-1.04], I2 = 70.07%; GRADE, moderate); a 12% increased risk of DKD onset for every 1% increase in HbA1c (RR = 1.12, CI [1.07-1.17], I2 = 94.94%; GRADE, moderate); a 6% increased risk of DKD onset for every 5 mmHg increase in SBP (RR = 1.06. CI [1.03-1.09], I2 = 85.41%; GRADE, moderate); a 2% increased risk of DKD onset per 10 mg/dL increase in TG (RR = 1.02, CI [1.01-1.03], I2 = 78.45%; GRADE, low); an 6% decreased risk of DKD onset per 10 mg/dL increase in HDL (RR = 0.94, CI [0.92-0.96], I2 = 0.33%; GRADE, high), and a 11% increased risk for each 1 mg/dL increase in UA (RR = 1.11, CI [1.05-1.17], I2 = 79.46%; GRADE, moderate). Subgroup analysis revealed a likely higher risk association of clinical parameters (BMI, HbA1c, LDL, and UA) in patients with T2DM for less than 10 years. Interpretation BMI, HbA1c, SBP, TG, HDL and UA are potential predictors of DKD onset in patients with T2DM. Given high heterogeneity between included studies, our findings should be interpreted with caution, but they suggest monitoring of these clinical parameters to identify individuals who may be at risk of developing DKD. Funding Shenzhen Science and Innovation Fund, the Hong Kong Research Grants Council, and the HKU Seed Funds, and Scientific and technological innovation project of China Academy of Chinese Medical Sciences.
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Affiliation(s)
- Jianbo Guo
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Chen Liu
- Department of Statistics and Actuarial Science, The University of Hong Kong, Hong Kong, China
| | - Yifan Wang
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Baoyi Shao
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Tung Leong Fong
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Ngai Chung Lau
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Hui Zhang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Haidi Li
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Jianan Wang
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Xinyu Lu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Anqi Wang
- Department of Statistics and Actuarial Science, The University of Hong Kong, Hong Kong, China
| | - Cheuk Lung Leung
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Xin Wei Chia
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Fei Li
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoming Meng
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Qingyong He
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Haiyong Chen
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Department of Chinese Medicine, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
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3
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Ren X, Jiang M, Han L, Zheng X. Depressive symptoms and sleep duration in relation to chronic kidney disease: Evidence from the China health and retirement longitudinal study. J Psychosom Res 2023; 174:111494. [PMID: 37708593 DOI: 10.1016/j.jpsychores.2023.111494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 09/16/2023]
Abstract
OBJECTIVE Nowadays, the joint effects of depressive symptoms and sleep duration on the risk of chronic kidney disease (CKD) are still unclear. We aimed to prospectively assess the combined effect of depressive symptoms and sleep duration on the incidence of CKD in middle-aged and elderly Chinese population. METHODS A total of 10,953 participants from the China Health and Retirement Longitudinal Study (CHARLS) were included. Depressive symptoms were measured using the 10-item Center for Epidemiological Studies Depression scale (CESD-10). Sleep duration was evaluated by self-reported. CKD events were based on self-reported physicians' diagnosis or personal estimate glomerular filtration rate level (eGFR <60 mL/min/1.73 m2). Cox regression models were established to analyze the correlation between depressive symptoms, sleep duration and the risk of CKD. RESULTS Over a mean follow-up time was 6.76 ± 0.98 years, 851 (7.8%) participants had reported CKD events during the follow-up. Elevated depressive symptoms (HR = 1.65, 95% CI = 1.43-1.90) and short sleep duration (HR = 1.48, 95% CI = 1.27-1.72) were independently associated with an increased CKD risk after adjusting for potential confounding factors. Participants with short sleep duration (< 6 h)/elevated depressive symptoms (HR = 2.24, 95% CI = 1.89-2.65) were associated with the highest risk of CKD than those with normal sleep duration/low depressive symptoms. CONCLUSIONS Elevated depressive symptoms and short sleep duration were independent risk factors for CKD. There was a combined effect between depressive symptoms and sleep duration in increasing the risk of CKD.
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Affiliation(s)
- Xiao Ren
- Public Health Research Center and Department of Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Minglan Jiang
- Public Health Research Center and Department of Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Longyang Han
- Public Health Research Center and Department of Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xiaowei Zheng
- Public Health Research Center and Department of Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China.
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Habas E, Al Adab A, Arryes M, Alfitori G, Farfar K, Habas AM, Akbar RA, Rayani A, Habas E, Elzouki A. Anemia and Hypoxia Impact on Chronic Kidney Disease Onset and Progression: Review and Updates. Cureus 2023; 15:e46737. [PMID: 38022248 PMCID: PMC10631488 DOI: 10.7759/cureus.46737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Chronic kidney disease (CKD) is caused by hypoxia in the renal tissue, leading to inflammation and increased migration of pathogenic cells. Studies showed that leukocytes directly sense hypoxia and respond by initiating gene transcription, encoding the 2-integrin adhesion molecules. Moreover, other mechanisms participate in hypoxia, including anemia. CKD-associated anemia is common, which induces and worsens hypoxia, contributing to CKD progression. Anemia correction can slow CKD progression, but it should be cautiously approached. In this comprehensive review, the underlying pathophysiology mechanisms and the impact of renal tissue hypoxia and anemia in CKD onset and progression will be reviewed and discussed in detail. Searching for the latest updates in PubMed Central, Medline, PubMed database, Google Scholar, and Google search engines were conducted for original studies, including cross-sectional studies, cohort studies, clinical trials, and review articles using different keywords, phrases, and texts such as "CKD progression, anemia in CKD, CKD, anemia effect on CKD progression, anemia effect on CKD progression, and hypoxia and CKD progression". Kidney tissue hypoxia and anemia have an impact on CKD onset and progression. Hypoxia causes nephron cell death, enhancing fibrosis by increasing interstitium protein deposition, inflammatory cell activation, and apoptosis. Severe anemia correction improves life quality and may delay CKD progression. Detection and avoidance of the risk factors of hypoxia prevent recurrent acute kidney injury (AKI) and reduce the CKD rate. A better understanding of kidney hypoxia would prevent AKI and CKD and lead to new therapeutic strategies.
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Affiliation(s)
| | - Aisha Al Adab
- Internal Medicine, Hamad General Hospital, Doha, QAT
| | - Mehdi Arryes
- Internal Medicine, Hamad General Hospital, Doha, QAT
| | | | | | - Ala M Habas
- Internal Medicine, Tripoli University, Tripoli, LBY
| | - Raza A Akbar
- Internal Medicine, Hamad General Hospital, Doha, QAT
| | - Amnna Rayani
- Hemat-oncology Department, Pediatric Tripoli Hospital, Tripoli University, Tripoli, LBY
| | - Eshrak Habas
- Internal Medicine, Tripoli University, Tripoli, LBY
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Oshima M, Iwata Y, Toyama T, Kitajima S, Hara A, Sakai N, Shimizu M, Furuichi K, Haneda M, Babazono T, Yokoyama H, Iseki K, Araki S, Ninomiya T, Hara S, Suzuki Y, Iwano M, Kusano E, Moriya T, Satoh H, Nakamura H, Makino H, Wada T. Sex differences in risk factors for end-stage kidney disease and death in type 2 diabetes: A retrospective cohort study. J Diabetes 2023; 15:246-254. [PMID: 36785912 PMCID: PMC10036257 DOI: 10.1111/1753-0407.13367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 12/27/2022] [Accepted: 01/18/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND This study investigated the sex differences in the risk of end-stage kidney disease (ESKD) and mortality, as well as the effect modification of sex on associated factors in patients with type 2 diabetes. METHODS This multicenter observational cohort study included 4328 patients with type 2 diabetes. Hazard ratios (HRs) with 95% confidence intervals (CIs) of sex for ESKD and death were estimated using Cox proportional regression with adjustment for baseline covariates. For assessing risk modification, HRs and incidence rates for ESKD and death were compared between sexes across patient characteristics using Cox proportional and Poisson regression models. RESULTS During a median follow-up of 7 years, 276 patients (70% men) developed ESKD, and 241 patients (68% men) died. Men had higher risks of ESKD (HR 1.34; 95% CI 1.02-1.75; p = .034) and death (HR 1.64; 95% CI 1.24-2.16; p = .001) versus women after adjusting for multiple covariates. Among patients with microalbuminuria, men had a substantially higher risk of ESKD versus women, compared to those with normo- and macroalbuminuria (p for interaction .04). Incidence rates were also increased in men versus women with albuminuria of around 300 mg/g. No differences were detected in the association of sex and death across baseline patient subgroups. CONCLUSIONS In type 2 diabetes, men had an increased risk of ESKD and death versus women. Moderately increased albuminuria was strongly associated with sex difference in developing ESKD.
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Affiliation(s)
- Megumi Oshima
- Department of Nephrology and Laboratory MedicineKanazawa UniversityKanazawaJapan
| | - Yasunori Iwata
- Department of Nephrology and Laboratory MedicineKanazawa UniversityKanazawaJapan
| | - Tadashi Toyama
- Department of Nephrology and Laboratory MedicineKanazawa UniversityKanazawaJapan
- Innovative Clinical Research CenterKanazawa UniversityKanazawaJapan
| | - Shinji Kitajima
- Department of Nephrology and Laboratory MedicineKanazawa UniversityKanazawaJapan
| | - Akinori Hara
- Department of Nephrology and Laboratory MedicineKanazawa UniversityKanazawaJapan
- Department of Environmental and Preventive MedicineKanazawa UniversityKanazawaJapan
| | - Norihiko Sakai
- Department of Nephrology and Laboratory MedicineKanazawa UniversityKanazawaJapan
| | - Miho Shimizu
- Department of Nephrology and Laboratory MedicineKanazawa UniversityKanazawaJapan
| | - Kengo Furuichi
- Department of NephrologyKanazawa Medical UniversityUchinadaJapan
| | - Masakazu Haneda
- Department of MedicineAsahikawa Medical UniversityAsahikawaJapan
| | - Tetsuya Babazono
- Division of Diabetology and Metabolism, Department of Internal MedicineTokyo Women's Medical University School of MedicineTokyoJapan
| | | | | | - Shinichi Araki
- Division of Nephrology, Department of Internal MedicineWakayama Medical UniversityWakayamaJapan
| | - Toshiharu Ninomiya
- Department of Epidemiology and Public HealthGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Shigeko Hara
- Center of Health Management, Toranomon HospitalTokyoJapan
- Okinaka Memorial Institute for Medical ResearchTokyoJapan
| | - Yoshiki Suzuki
- Niigata University Medical and Dental HospitalNiigataJapan
| | - Masayuki Iwano
- Department of NephrologyFaculty of Medical Sciences, University of FukuiFukuiJapan
| | - Eiji Kusano
- Division of Nephrology, Department of Internal MedicineJichi Medical UniversityTochigiJapan
| | | | - Hiroaki Satoh
- Department of Diabetes and EndocrinologyJuntendo University Urayasu HospitalChibaJapan
| | | | | | - Takashi Wada
- Department of Nephrology and Laboratory MedicineKanazawa UniversityKanazawaJapan
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Matas AJ, Rule AD. Long-term Medical Outcomes of Living Kidney Donors. Mayo Clin Proc 2022; 97:2107-2122. [PMID: 36216599 PMCID: PMC9747133 DOI: 10.1016/j.mayocp.2022.06.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 06/03/2022] [Accepted: 06/13/2022] [Indexed: 12/15/2022]
Abstract
Historically, to minimize risks, living kidney donors have been highly selected and healthy. Operative risks are well-defined, yet concern remains about long-term risks. In the general population, even a mild reduction in glomerular filtration rate (GFR) is associated with cardiovascular disease, chronic kidney disease, and end-stage kidney disease (ESKD). However, reduction in GFR in the general population is due to kidney or systemic disease. Retrospective studies comparing donors with matched general population controls have found no increased donor risk. Prospective studies comparing donors with controls (maximum follow-up, 9 years) have reported that donor GFR is stable or increases slightly, whereas GFR decreases in controls. However, these same studies identified metabolic and vascular donor abnormalities. There are a few retrospective studies comparing donors with controls. Each has limitations in selection of the control group, statistical analyses, and/or length of follow-up. One such study reported increased donor mortality; 2 reported a small increase in absolute risk of ESKD. Risk factors for donor ESKD are similar to those in the general population. Postdonation pregnancies are also associated with increased risk of hypertension and preeclampsia. There is a critical need for long-term follow-up studies comparing donors with controls from the same era, geographic area, and socioeconomic status who are healthy, with normal renal function on the date matching the date of donation, and are matched on demographic characteristics with the donors. These data are needed to optimize donor candidate counseling and informed consent.
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Affiliation(s)
- Arthur J Matas
- Transplantation Division, Department of Surgery, University of Minnesota, Minneapolis.
| | - Andrew D Rule
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN
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Wang Y, Li F, Chu C, Zhang X, Zhang XY, Liao YY, Du MF, Zou T, Ma Q, Chen C, Wang D, Wang KK, Yan Y, Sun Y, Hu GL, Jia H, Li H, Niu ZJ, Yan RC, Man ZY, Wang L, Luo WJ, Zhang J, Li CH, Lu WH, Chang J, Safirstein R, Lu Y, Mu JJ. Early life body mass index trajectories and albuminuria in midlife: A 30-year prospective cohort study. EClinicalMedicine 2022; 48:101420. [PMID: 35516445 PMCID: PMC9065297 DOI: 10.1016/j.eclinm.2022.101420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/09/2022] [Accepted: 04/11/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Albuminuria is a marker of vascular dysfunction and is associated with chronic renal and cardiovascular diseases. Data on the association between the longitudinal patterns of weight change early in life and albuminuria later in life are limited. We aimed to identify the body mass index (BMI) trajectory across a 30-year span and evaluate its association with middle-age albuminuria. METHODS Of the 4623 participants aged 6-18-year-old recruited by Hanzhong Adolescent Hypertension Study cohort in northern China from March 10, 1987 to June 3, 2017, a total of 1,825 participants followed up with 6 visits over 30 years were enrolled. Group-based trajectory modeling was used to identify distinct BMI trajectories in longitudinal analyses. Albuminuria was defined as a urinary albumin-to-creatinine ratio (uACR) ≥ 30 mg/g. FINDINGS Three distinct BMI trajectories were identified: low-increasing (n = 671, 36.8%), moderate-increasing (n = 940, 51.5%), and high-increasing (n = 214, 11.7%); male participants exhibited a steeper increase in BMI than females. The uACR was increased linearly from the low- to high-increasing group. A total of 201 individuals developed albuminuria, with an incidence of 11.0%. Compared with the low-increasing group, the odds ratio (OR) of albuminuria in middle age was 2.13(95% confidence interval [CI]: 1.26 to 3.61) for the high-increasing group after full adjustment for age, sex, smoking, alcohol consumption, marital status, systolic blood pressure, diabetes, and hyperlipidemia. The unadjusted ORs of the high-increasing BMI group were 5.08 (2.76-9.37) for males and 3.45 (1.78-6.69) for females, and the association remained significant in males in the fully adjusted models. INTERPRETATION Higher BMI trajectories are associated with higher uACR and an increased risk of albuminuria in middle age, especially in males. Identifying long-term BMI trajectories from an early age may assist in predicting the risk of renal diseases and cardiovascular disease later in life. FUNDING This work was supported by the National Natural Science Foundation of China (81600327, 82070437, 81870319, 82070549, and 82170437), Natural Science Basic Research Program of Shaanxi Province (2021JM-257 and 2021JM-588), Institutional Foundation of the First Affiliated Hospital of Xi'an Jiaotong University (2019QN-06 and 2021ZXY-14), the Clinical Research Award of the First Affiliated Hospital of Xi'an Jiaotong University of China (XJTU1AF-CRF-2019-004, XJTU1AF2021CRF-021, and XJTU1AFCRF-2017-021), Research Incubation Fund of Xi'an People's Hospital (FZ-61), Grants from the Major Chronic Non-communicable Disease Prevention and Control Research Key Project of the Ministry of Science and Technology of China (2017YFC1307604 and 2016YFC1300104).
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Affiliation(s)
- Yang Wang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
- Global Health Institute, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Fei Li
- Clinical Research Center, the Third Xiangya Hospital, Central South University, 138 Tongzipo Road, Changsha 410013, China
| | - Chao Chu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Xi Zhang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Xiao-Yu Zhang
- Department of Cardiology, Northwest Women's and Children's Hospital of Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yue-Yuan Liao
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Ming-Fei Du
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Ting Zou
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Qiong Ma
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Chen Chen
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Dan Wang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Ke-Ke Wang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Yu Yan
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Yue Sun
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Gui-Lin Hu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Hao Jia
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Hao Li
- Department of Critical Care Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ze-Jiaxin Niu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Rui-Chen Yan
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Zi-Yue Man
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Lan Wang
- Department of Cardiology, Xi'an International Medical Center Hospital, Xi'an, China
| | - Wen-Jing Luo
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Jie Zhang
- Department of Cardiology, Xi'an People's Hospital, Xi'an, China
| | - Chun-Hua Li
- Department of Ophthalmology, Xi'an People's Hospital, Xi'an, China
| | - Wan-Hong Lu
- Department of Nephrology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - John Chang
- Department of Medicine, Yale School of Medicine, New Haven, CT, USA
- Department of Medicine, Veterans Administration Healthcare System, West Haven, CT, USA
| | - Robert Safirstein
- Department of Medicine, Yale School of Medicine, New Haven, CT, USA
- Department of Medicine, Veterans Administration Healthcare System, West Haven, CT, USA
| | - Yao Lu
- Clinical Research Center, the Third Xiangya Hospital, Central South University, 138 Tongzipo Road, Changsha 410013, China
- Corresponding authors.
| | - Jian-Jun Mu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
- Corresponding authors.
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Jonsson AJ, Lund SH, Eriksen BO, Palsson R, Indridason OS. Incidence and risk factors of chronic kidney disease: results of a nationwide study in Iceland. Clin Kidney J 2022; 15:1290-1299. [PMID: 35756731 PMCID: PMC9217641 DOI: 10.1093/ckj/sfac051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Information on the incidence of chronic kidney disease (CKD) in the general population is scarce. This study examined the incidence and risk factors of CKD stages 1–5 in Iceland, based on multiple markers of kidney damage.
Methods
All SCr values, urine protein measurements and diagnosis codes for kidney diseases and comorbid conditions for people aged ≥ 18 years were obtained from electronic medical records of all healthcare institutions in Iceland in 2008–2016. CKD was defined according to the KDIGO criteria as evidence for kidney damage and/or eGFR < 60 mL/min/1.73 m2 for > 3 months. Alternatively, CKD was defined using age-adapted eGFR thresholds. Mean annual age-standardized incidence of CKD was calculated for persons without CKD at study entry. Risk factor assessment was based on ICD diagnosis codes. Incidence was reported per 100 000 population.
Results
We retrieved 1 820 990 SCr values for 206 727 persons. Median age was 45 years (range, 18–106) and 47% were men. Mean annual age-standardized incidence of CKD per 100 000 was 649 in men and 694 in women, and 480 in men and 522 in women using age-adapted eGFR thresholds. The incidence reached over 3000 in men and women aged > 75 years. Traditional CKD risk factors, such as acute kidney injury, diabetes, hypertension and cardiovascular disease, as well as less well characterized risk factors, including chronic lung disease, malignancy and major psychiatric illness were associated with increased risk of CKD, and the same was true for obesity and sleep apnea in women.
Conclusion
The annual incidence of CKD, with strict adherence to the KDIGO criteria, was < 0.7% but markedly lower using age-adapted eGFR thresholds. Apart from acute kidney injury, the observed risk factors comprised chronic and potentially modifiable disorders.
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Affiliation(s)
- Arnar J Jonsson
- University of Iceland, Landspitali–The National University Hospital of Iceland
- Internal Medicine Services, Landspitali–The National University Hospital of Iceland
| | - Sigrun H Lund
- University of Iceland, Landspitali–The National University Hospital of Iceland
| | - Bjørn O Eriksen
- Metabolic and Renal Research Group, UiT The Arctic University of Norway, Tromsö, Norway
| | - Runolfur Palsson
- University of Iceland, Landspitali–The National University Hospital of Iceland
- Internal Medicine Services, Landspitali–The National University Hospital of Iceland
- Division of Nephrology, Landspitali–The National University Hospital of Iceland, Reykjavik, Iceland
| | - Olafur S Indridason
- Internal Medicine Services, Landspitali–The National University Hospital of Iceland
- Division of Nephrology, Landspitali–The National University Hospital of Iceland, Reykjavik, Iceland
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Shibata I, Shibata M, Sato KK, Takeuchi Y, Okamura K, Koh H, Oue K, Morimoto M, Hayashi T. Body Mass Index and the Risk of Persistent Proteinuria in Middle-Aged Men: The Kansai Healthcare Study. Am J Nephrol 2022; 53:191-198. [PMID: 35139520 DOI: 10.1159/000521885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/03/2022] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Proteinuria is a risk factor for end-stage renal failure. However, it is not known whether body mass index (BMI) is prospectively associated with the risk of future developing proteinuria, taking into account transient proteinuria. METHODS We enrolled 9,320 nondiabetic Japanese middle-aged men who had no proteinuria, an estimated glomerular filtration rate ≥60 mL/min/1.73 m2, no history of cancer, and no use of antihypertensive medications at baseline. "Any proteinuria" was defined as proteinuria detected for the first time during the follow-up period regardless of its frequency. "Persistent proteinuria" was defined as proteinuria that was detected at least twice consecutively at annual examinations and did not return to negative until the end of the follow-up. RESULTS During the 11-year follow-up period, 1,972 cases of any proteinuria and 151 cases of persistent proteinuria were confirmed. Both lower and higher BMI were associated with the risk of any proteinuria. As for persistent proteinuria, in those with a BMI ≥20 kg/m2, higher BMI was associated with a higher risk of future persistent proteinuria. The association between BMI and the risk of persistent proteinuria was stronger than that between BMI and any proteinuria. In multiple-adjusted model, hazard ratios of persistent proteinuria for BMI <18.0, 18.0-19.9, 20.0-21.9, 22.0-23.9, 24.0-25.9, 26.0-27.9, and ≥28.0 kg/m2 were 1.52 (95% confidence interval 0.51-4.49), 1.07 (0.49-2.29), 1.00 (reference), 1.14 (0.64-2.01), 1.89 (1.09-3.27), 2.12 (1.15-3.93), and 3.85 (2.03-7.30), respectively. DISCUSSION/CONCLUSION In those with a BMI ≥20 kg/m2, higher BMI was associated with a higher risk of future persistent proteinuria and any proteinuria. This relationship was stronger for persistent proteinuria than for any proteinuria.
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Affiliation(s)
- Izumi Shibata
- Department of Preventive Medicine and Environmental Health, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Mikiko Shibata
- Department of Preventive Medicine and Environmental Health, Osaka City University Graduate School of Medicine, Osaka, Japan,
| | - Kyoko Kogawa Sato
- Department of Preventive Medicine and Environmental Health, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yuka Takeuchi
- Department of Preventive Medicine and Environmental Health, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Kaori Okamura
- Department of Preventive Medicine and Environmental Health, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Hideo Koh
- Department of Hematology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Keiko Oue
- Kansai Health Administration Center, Nippon Telegraph and Telephone West Corporation, Osaka, Japan
| | - Michio Morimoto
- Kansai Health Administration Center, Nippon Telegraph and Telephone West Corporation, Osaka, Japan
| | - Tomoshige Hayashi
- Department of Preventive Medicine and Environmental Health, Osaka City University Graduate School of Medicine, Osaka, Japan
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Yamasaki N, Sakurai M, Kobayashi J, Morikawa Y, Kido T, Naruse Y, Nogawa K, Suwazono Y, Ishizaki M, Nakagawa H. The Association between Anthropometric Indices of Obesity and Chronic Kidney Disease in Middle-aged Japanese Men and Women: A Cohort Study. Intern Med 2021; 60:2007-2015. [PMID: 33551403 PMCID: PMC8313930 DOI: 10.2169/internalmedicine.6235-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Objective This study investigated associations between three indices of obesity-the body mass index (BMI), waist circumference (WC), and waist-to-height ratio (WHtR)-and the incidence of chronic kidney disease (CKD). Methods The employees of a company in Japan (1,725 men, 1,186 women; aged 35-55 years) had BMI, WC, and WHtR measured in health examinations. The incidence of CKD was determined at annual medical examinations over a six-year period. The hazard ratios for CKD were calculated using proportional hazard models, and the χ2 statistic was used to compare the strengths of the associations. Results The mean BMI (kg/m2), WC (cm), and WHtR were 23.6, 84.3, and 0.49 for men and 22.3, 79.7, and 0.50 for women, respectively. The incidence of CKD (/1,000 person-years) was 18.1 for men and 8.4 for women. In men, positive linear associations were observed between the BMI, WC, and WHtR and the risk of CKD, even after adjusting for the presence of metabolic abnormalities (p for trend <0.001, 0.012, and 0.023, respectively). In women, a linear association was observed only between the WHtR and CKD, not the BMI or WC (p for trend =0.042, 0.057, and 0.186). The χ2 statistics were the highest for the BMI in both men and women. Conclusion The BMI, WC, and WHtR were linearly associated with the risk of CKD independently of metabolic abnormalities in men, while the associations were weaker or not significant in women. The BMI was the most strongly associated with the incidence of CKD in both men and women.
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Affiliation(s)
- Naruhiro Yamasaki
- Department of General Internal Medicine, Kanazawa Medical University, Japan
| | - Masaru Sakurai
- Department of Social and Environmental Medicine, Kanazawa Medical University, Japan
- Health Evaluation Center, Kanazawa Medical University, Japan
| | - Junji Kobayashi
- Department of Endocrinology, Hematology and Gerontology, Graduate School of Medicine, Chiba University, Japan
| | - Yuko Morikawa
- School of Nursing, Kanazawa Medical University, Japan
| | - Teruhiko Kido
- School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
| | | | - Kazuhiro Nogawa
- Department of Occupation and Environmental Medicine, Graduate School of Medicine, Chiba University, Japan
| | - Yasushi Suwazono
- Department of Occupation and Environmental Medicine, Graduate School of Medicine, Chiba University, Japan
| | - Masao Ishizaki
- Department of Social and Environmental Medicine, Kanazawa Medical University, Japan
- Health Evaluation Center, Kanazawa Medical University, Japan
| | - Hideaki Nakagawa
- Department of Social and Environmental Medicine, Kanazawa Medical University, Japan
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11
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Kefeni BT, Hajito KW, Getnet M. Renal Function Impairment and Associated Factors Among Adult HIV-Positive Patients Attending Antiretroviral Therapy Clinic in Mettu Karl Referral Hospital: Cross-Sectional Study. HIV AIDS (Auckl) 2021; 13:631-640. [PMID: 34135641 PMCID: PMC8200135 DOI: 10.2147/hiv.s301748] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 05/19/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Human immunodeficiency virus (HIV) affects every organ system in the body through impairment or by rendering the patient vulnerable to opportunistic infections. The kidney is the vital organ in the excretion of waste products and toxins (urea, creatinine and uric acid), and regulation of extracellular fluid volume, serum osmolality and electrolyte concentrations. The risk of kidney disease is greater in HIV-infected individuals than in the general population. This study aimed to assess the magnitude of renal function impairment and its associated factors among adult HIV-positive patients attending an ART clinic in Mettu Karl Referral Hospital, Mettu town, south-west Ethiopia. METHODS The institution-based, cross-sectional quantitative study was conducted from March 8 to May 30, 2020. A total of 352 clients participated and a systematic sampling technique was used to allocate study participants. Data were entered into Epi data and exported to SPSS version 22 for analysis. Bivariate analysis was conducted to identify candidate variables for multivariate analysis at P <0.25. Multivariable logistic regression analysis was conducted to determine the predictors of renal function impairment with ART. P value < 0.05 was considered to indicate statistical significance. RESULTS A total of 352 HIV-infected patients participated in this study with a response rate of 98.1%. Out of 352 HIV patients on ART, 73 (20.7%) were found to have renal function impairment. Cigarette smoking [AOR = 9.60, 95% CI: 4.73-19.48], diabetes mellitus [AOR = 6.16, 95% CI: 2.79-13.59], hypertension [AOR = 4.71, 95% CI: 1.98-11.17] and low CD4 count [AOR = 6.47, 95% CI: 3.31-12.64] were found to be independent predictors of renal function impairment among adult HIV positive patients. CONCLUSION The prevalence of renal function impairment among HIV patients on ART is high. Hypertension, diabetes, cigarette smoking and low CD4 count were associated factors of renal function impairment. HIV patients on ART should be regularly screened for early diagnosis and management of renal function impairment.
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Affiliation(s)
| | - Kifle Woldemichael Hajito
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, Jimma University, Jimma, Ethiopia
| | - Masrie Getnet
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, Jimma University, Jimma, Ethiopia
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Okada R, Tsushita K, Wakai K, Kato K, Wada T, Shinohara Y. Healthy lifestyle reduces incidence of trace/positive proteinuria and rapid kidney function decline after 2 years: from the Japan Ningen Dock study. Nephrol Dial Transplant 2021; 36:1039-1048. [PMID: 33247759 DOI: 10.1093/ndt/gfaa224] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 07/15/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Lifestyle modification is recommended for subjects with trace proteinuria during health checkups. However, whether overall healthy lifestyle reduces the incidence of trace/positive proteinuria or rapid decline in estimated glomerular filtration rate (eGFR) is not clarified. METHODS A total of 451 534 people (277 494 men and 174 040 women) ages 20-79 years with negative proteinuria were included. The number of three healthy lifestyle factors (LFs) was assessed: noncurrent smoking, healthy eating habits (late dinner, snacking and skipping breakfast <3 times/week) and body mass index <25. The incidence of trace (±) and positive (≥1+) proteinuria by the dipstick method and eGFR decline ≥20% over 2 years were compared with the number of healthy LFs. RESULTS The incidence of trace/positive proteinuria and rapid eGFR decline decreased with an increasing number of healthy LFs as follows: odds ratios (ORs) for trace proteinuria, 0.91 [95% confidence interval (CI) 0.86-0.96], 0.82 (0.78-0.87) and 0.72 (0.68-0.77); ORs for positive proteinuria, 0.76 (95% CI 0.67-0.86), 0.56 (0.50-0.63) and 0.46 (0.40-0.53); and ORs for an eGFR decline ≥20%, 0.93 (95% CI 0.82-1.05), 0.90 (0.79-1.02) and 0.81 (0.70-0.93) for those with one, two and three healthy LFs compared with those with none of the three healthy LFs, respectively. Overall, subjects with a healthy lifestyle showed 28, 54 and 19% reduced risk of developing trace proteinuria, positive proteinuria and eGFR decline ≥20%, respectively, compared with those with an unhealthy lifestyle after 2 years. This association was similarly observed even among subjects without hypertension (HT) or diabetes mellitus (DM). CONCLUSIONS Subjects with an overall healthy lifestyle showed a lower incidence of trace/positive proteinuria by dipstick test and rapid eGFR decline over 2 years in a nationwide general population. Thus lifestyle modification should be recommended for subjects with trace proteinuria during health checkups, even for subjects without HT or DM.
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Affiliation(s)
- Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Kazuyo Tsushita
- Comprehensive Health Science Center, Aichi Health Promotion Foundation, Aichi, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Kiminori Kato
- Department of Laboratory Medicine and Clinical Epidemiology for Prevention of Noncommunicable Diseases, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Takashi Wada
- Health Science, Jikei University Graduate School of Medicine, Tokyo, Japan
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Locke JE, Shelton B, Orandi B, Olthoff K, Pomfret E, Forde KA, Sawinski D, Gray M, Ascher N. Obesity is a risk factor for progression to kidney transplant waitlisting after liver transplantation. Clin Transplant 2021; 35:e14317. [PMID: 33866616 DOI: 10.1111/ctr.14317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 03/26/2021] [Accepted: 04/06/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Non-alcoholic steatohepatitis has emerged as a leading cause of cirrhosis, and obesity-associated comorbidities, including renal disease, have increased in prevalence. Obesity predisposes the kidney to hyperfiltration injury, potentially impairing acute kidney injury recovery. Identification of patients at risk for renal dysfunction is impeded by poor performance of renal function estimating equations among cirrhotics. To better understand obesity among cirrhotics and renal disease progression, we examined likelihood of kidney transplantation (KT) waitlisting after liver transplant alone (LTA) by obesity class. METHODS 68 607 LTA recipients were identified in SRTR (2005-2018). Fine and Gray competing risks models were used to analyze likelihood of KT waitlisting. RESULTS 27.4% of recipients were obese (BMI ≥ 30 kg/m2 ) and were 10% more likely to require KT waitlisting (aHR: 1.10, 95%CI: 1.01-1.20). Risk was highest among recipients with Classes II and III obesity (BMI: ≥35 kg/m2 ) (aHR: 1.37, 95%CI: 1.17-1.56). Moreover, recipients with Classes II and III obesity were 57% more likely to require KT waitlisting within one year post-LTA (aHR: 1.57, 95%CI: 1.18-2.10) compared to non-obese recipients. DISCUSSION These findings suggest obesity was a risk factor for renal recovery failure and/or renal disease progression post-LTA and may confound identification of renal dysfunction and/or prediction of renal recovery among cirrhotics.
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Affiliation(s)
- Jayme E Locke
- University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Brittany Shelton
- University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Babak Orandi
- University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Kim Olthoff
- University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | | | - Kimberly A Forde
- University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Deirdre Sawinski
- University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Meagan Gray
- University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Nancy Ascher
- University of California at San Francisco School of Medicine, San Francisco, CA, USA
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14
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Hukportie DN, Li FR, Zhou R, Zheng JZ, Wu XX, Wu XB. Anthropometric Measures and Incident Diabetic Nephropathy in Participants With Type 2 Diabetes Mellitus. Front Endocrinol (Lausanne) 2021; 12:706845. [PMID: 34421824 PMCID: PMC8371436 DOI: 10.3389/fendo.2021.706845] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 07/20/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The prevalence of diabetes is on the rise globally coupled with its associated complications, such as diabetic nephropathy (DN). Obesity has been identified as a risk factor for the development of DN but it is still unclear which obesity index is the best predictor of incident DN. METHODS Data from the participants with type 2 diabetes mellitus (T2DM) in the Action to Control Cardiovascular Risk in Diabetes (ACCORD) study were used to examine the sex-specific association between waist circumference (WC), waist-to-height ratio (WHtR), and body mass index (BMI) with incident DN risk. RESULTS Among the 8,887 participants with T2DM (5,489 men and 3,398 women), 5,296 participants (3,345 men and 1,951 women) developed the DN composite outcome during a follow-up period of 24302 person-years. Among men, null associations were observed between all anthropometric measures with incident DN in the multivariate analysis although the 3rd quartile of WHtR showed marginally significant results (P = 0.052). However, among women, both central and general obesity measures were associated with increased risks of incident DN. Compared with participants in the WC <88 cm category, the fully adjusted HR and 95% CI for those in the ≥88 cm of WC was 1.35 (95% CI 1.15-1.57). Compared with the lowest quartile, the fully adjusted HRs and 95% CIs for the 2nd to the 4th quartile of WHtR were 1.09 (95% CI 0.96-1.25), 1.12 (95% CI 0.98-1.28), and 1.14 (95% CI 1.00-1.30) respectively; also, compared with the normal BMI category, the fully adjusted HRs and 95% CIs for class I - class III obese were 1.36 (95% CI 1.10 - 1.67), 1.43 (95% CI 1.16 - 1.78) and 1.32 (95% CI 1.05 - 1.66) respectively. CONCLUSIONS Among participants with T2DM, higher levels of both central and general obesity indexes were associated with DN risk among women but not in men. Women with T2DM should maintain a healthy weight targeted at reducing both central and general obesity to enhance nephroprotection. Trial registration: ClinicalTrials.gov., no. NCT00000620.
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Affiliation(s)
- Daniel Nyarko Hukportie
- Department of Epidemiology, School of Public Health, Southern Medical University (Guangdong Provincial Key Laboratory of Tropical Disease Research), Guangzhou, China
| | - Fu-Rong Li
- Department of Epidemiology, School of Public Health, Southern Medical University (Guangdong Provincial Key Laboratory of Tropical Disease Research), Guangzhou, China
- School of Medicine, Southern University of Science and Technology, Shenzhen, China
| | - Rui Zhou
- Department of Epidemiology, School of Public Health, Southern Medical University (Guangdong Provincial Key Laboratory of Tropical Disease Research), Guangzhou, China
| | - Jia-Zhen Zheng
- Department of Epidemiology, School of Public Health, Southern Medical University (Guangdong Provincial Key Laboratory of Tropical Disease Research), Guangzhou, China
| | - Xiao-Xiang Wu
- Department of General Surgery, 157 Hospital, General Hospital of Guangzhou Military Command, Guangzhou, China
- *Correspondence: Xian-Bo Wu, ; Xiao-Xiang Wu,
| | - Xian-Bo Wu
- Department of Epidemiology, School of Public Health, Southern Medical University (Guangdong Provincial Key Laboratory of Tropical Disease Research), Guangzhou, China
- *Correspondence: Xian-Bo Wu, ; Xiao-Xiang Wu,
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15
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Kaplan A, Abidi E, Habeichi NJ, Ghali R, Alawasi H, Fakih C, Zibara K, Kobeissy F, Husari A, Booz GW, Zouein FA. Gender-biased kidney damage in mice following exposure to tobacco cigarette smoke: More protection in premenopausal females. Physiol Rep 2021; 8:e14339. [PMID: 31981316 PMCID: PMC6981307 DOI: 10.14814/phy2.14339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Multiple clinical studies documented renal damage in chronic cigarette smokers (CS) irrespective of their age and gender. Premenopausal female smokers are known to exert a certain cardiovascular and renal protection with undefined mechanisms. Given the multiple demographic variables within clinical studies, this experimental study was designed to be the first to assess whether gender‐biased CS‐induced kidney damage truly exists between premenopausal female and age‐matched C57Bl6J male mice when compared to their relative control groups. Following 6 weeks of CS exposure, cardiac function, inflammatory marker production, fibrosis formation, total and glomerular ROS levels, and glomerulotubular homeostasis were assessed in both genders. Although both CS‐exposed male and female mice exhibited comparable ROS fold change relative to their respective control groups, CS‐exposed male mice showed a more pronounced fibrotic deposition, inflammation, and glomerulotubular damage profile. However, the protection observed in CS‐exposed female group was not absolute. CS‐exposed female mice exhibited a significant increase in fibrosis, ROS production, and glomerulotubular alteration but with a pronounced anti‐inflammatory profile when compared to their relative control groups. Although both CS‐exposed genders presented with altered glomerulotubular homeostasis, the alteration phenotype between genders was different. CS‐exposed males showed a significant decrease in Bowman's space along with reduced tubular diameter consistent with an endocrinization pattern of chronic tubular atrophy, suggestive of an advanced stage of glomerulotubular damage. CS‐exposed female group, on the other hand, displayed glomerular hypertrophy with a mild tubular dilatation profile suggestive of an early stage of glomerulotubular damage that generally precedes collapse. In conclusion, both genders are prone to CS‐induced kidney damage with pronounced female protection due to a milder damage slope.
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Affiliation(s)
- Abdullah Kaplan
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Emna Abidi
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Nada J Habeichi
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Rana Ghali
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Hiam Alawasi
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Christina Fakih
- Biology Department, Faculty of Sciences-I, Lebanese University, Beirut, Lebanon
| | - Kazem Zibara
- Biology Department, Faculty of Sciences-I, Lebanese University, Beirut, Lebanon
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Ahmad Husari
- Department of Internal Medicine, Respiratory Diseases and Sleep Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - George W Booz
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, USA
| | - Fouad A Zouein
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
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Abstract
The prevalence of obesity in peritoneal dialysis (PD) populations has risen dramatically since the mid-1980s. This epidemic has been driven by the increased prevalence of obesity in the general population, the increased risk of progression of chronic kidney disease to end-stage renal failure (ESRF) in obese subjects, the reduced probability of listing obese dialysis patients for renal transplantation, a paradoxical enhanced survival in at least some obese populations on dialysis as compared with non-obese ESRF patients, and a possible adipogenic effect of excessive peritoneal glucose absorption in PD. Although obesity has consistently been associated with improved outcomes in hemodialysis, conflicting results have been seen in PD. In general, an elevated body mass index (BMI) has been associated with a neutral or deleterious impact on PD outcomes, and the relationship appears to be explained predominantly by fat mass. Risk is also elevated in patients with a low BMI, such that the “optimal BMI” appears to lie between 20 kg/m2 and 25 kg/m2. The mechanisms underpinning the harmful effect of obesity appear to include increased peritonitis rate, proinflammatory effects, and a more rapid decline of residual renal function in obese patients. No proof exists that weight reduction engenders an improvement in outcome in PD patients, but the available studies suggest that cautious weight reduction is advisable. A few studies have demonstrated that clinically important and sustained weight reduction can be successfully achieved through a combination of individual meal plans, regular exercise, and substitution of icodextrin for dextrose in the once-daily long dwell.
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Affiliation(s)
- David W. Johnson
- Department of Renal Medicine, University of Queensland at Princess Alexandra Hospital, Brisbane, Queensland, Australia
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17
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Jo W, Lee S, Joo YS, Nam KH, Yun HR, Chang TI, Kang EW, Yoo TH, Han SH, Kang SW, Park JT. Association of smoking with incident CKD risk in the general population: A community-based cohort study. PLoS One 2020; 15:e0238111. [PMID: 32853266 PMCID: PMC7451569 DOI: 10.1371/journal.pone.0238111] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 08/09/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Chronic kidney disease (CKD) is a public health problem, and an unfavorable lifestyle has been suggested as a modifiable risk factor for CKD. Cigarette smoking is closely associated with cardiovascular disease and cancers; however, there is a lack of evidence to prove that smoking is harmful for kidney health. Therefore, we aimed to determine the relationship between cigarette smoking and CKD among healthy middle-aged adults. METHODS Using the database from the Korean Genome and Epidemiology Study, we analyzed 8,661 participants after excluding those with baseline estimated glomerular filtration rate (eGFR)<60 ml/min/1.72 m2 or proteinuria. Exposure of interest was smoking status: never-, former-, and current-smokers. Primary outcome was incident CKD defined as eGFR <60 ml/min/1.73 m2 or newly developed proteinuria. RESULTS The mean age of the subjects was 52 years, and 47.6% of them were males. There were 551 (6.4%) and 1,255 (14.5%) subjects with diabetes and hypertension, respectively. The mean eGFR was 93.0 ml/min/1.73 m2. Among the participants, 5,140 (59.3%), 1,336 (15.4%), and 2,185 (25.2%) were never-smokers, former-smokers, and current-smokers, respectively. During a median follow-up of 11.6 years, incident CKD developed in 1,941 (22.4%) subjects with a crude incidence rate of 25.1 (24.0-26.2) per 1,000 person-years. The multivariable Cox regression analysis after adjustment of confounding factors showed hazard ratios (95% confidence interval) of 1.13 (0.95-1.35) and 1.26 (1.07-1.48) for CKD development in the former- and current-smokers, compared with never-smokers. CONCLUSION This study showed that smoking was associated with a higher risk of incident CKD among healthy middle-aged adults.
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Affiliation(s)
- Wonji Jo
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Sangmi Lee
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Young Su Joo
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
- Division of Nephrology, Department of Internal Medicine, Myongji Hospital, Goyang, Gyeonggi-do, Republic of Korea
| | - Ki Heon Nam
- Division of Integrated Medicine, Department of Internal Medicine, College of Medicine, Yonsei University, Seoul, Korea
| | - Hae-Ryong Yun
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Tae Ik Chang
- Department of Internal Medicine, National Health Insurance Service Medical Center, Ilsan Hospital, Goyang, Gyeonggi-do, Korea
| | - Ea wha Kang
- Department of Internal Medicine, National Health Insurance Service Medical Center, Ilsan Hospital, Goyang, Gyeonggi-do, Korea
| | - Tae-Hyun Yoo
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Seung Hyeok Han
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Shin-Wook Kang
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
- Department of Internal Medicine, College of Medicine, Severance Biomedical Science Institute, Brain Korea 21 PLUS, Yonsei University, Seoul, Korea
| | - Jung Tak Park
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
- * E-mail:
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Huang PP, Shu DH, Su Z, Luo SN, Xu FF, Lin F. Association between lifestyle, gender and risk for developing end-stage renal failure in IgA nephropathy: a case-control study within 10 years. Ren Fail 2020; 41:914-920. [PMID: 31580172 PMCID: PMC6781456 DOI: 10.1080/0886022x.2019.1635029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Purpose: To investigate the potential association between lifestyles, including cigarette smoking, alcohol consumption, and physical exercise at the time of biopsy and the risk for developing end-stage renal failure (ESRF) among IgA nephropathy (IgAN) patients within 10 years. Methods: A case–control study was carried out. Seventy-seven ESRF patients with the primary cause of IgAN were enrolled as cases. Seventy-seven IgAN patients who had not progressed to ESRF after being diagnosed for over 10 years served as controls. Smoking, alcohol consumption and physical exercise related data and baseline clinical features were collected from their medical records and confirmed by phone calls. Results: The case group had higher proportions of males, smokers, drinkers, and physical inactivity individuals than the controls had. Alcohol drinking history (/1 year, OR 1.32, p < .05) is independently associated with an increased risk of ESRF, while physical exercise habits (OR 0.06, p < .05) associated with a decreased risk of ESRF in multivariate logistic analysis. Male gender, lower eGFR, and higher urinary protein at the time of biopsy were also independent risk factors. Moreover, male-non-exercise population seems to be more likely to progress to ESRF than others (male-exercise, female-exercise, and female-none-exercise populations). Conclusion: Physical exercise should be encouraged in IgAN patients, especially in males, for a better renal outcome. Alcohol cessation might have a renal survival benefit in IgAN patients.
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Affiliation(s)
- Pei Pei Huang
- Department of Nephrology, the First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China
| | - Dan Hua Shu
- Department of Obstetrics, the First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China
| | - Zhen Su
- Department of Nephrology, the First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China
| | - Sheng Nan Luo
- Department of Nephrology, the First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China
| | - Fei Fei Xu
- Department of Nephrology, the First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China
| | - Fan Lin
- Department of Nephrology, the First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China
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Jamshidi P, Najafi F, Mostafaei S, Shakiba E, Pasdar Y, Hamzeh B, Moradinazar M. Investigating associated factors with glomerular filtration rate: structural equation modeling. BMC Nephrol 2020; 21:30. [PMID: 31996154 PMCID: PMC6990472 DOI: 10.1186/s12882-020-1686-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 01/06/2020] [Indexed: 12/18/2022] Open
Abstract
Background Glomerular filtration rate (GFR) is a valid indicator of kidney function. Different factors can affect GFR. The purpose of this study is to assess the direct and indirect effects of GFR-related factors using structural equation modeling. Patients and methods We analyzed data from the baseline phase of the Ravansar Non-Communicable Disease cohort study. Data on socio-behavioral, nutritional, cardiovascular, and metabolic risk factors were analyzed using a conceptual model in order to test direct and indirect effects of factors related to GFR, separately in male and female, using the structural equation modeling. Results Of 8927 individuals who participated in this study, 4212 subjects were male (47.20%). The mean and standard deviation of GFR was 76.05 (±14.31) per 1.73 m2. GFR for 0.2, 11.3, 73.0 and 15.5% of people were < 30, 30 − 59, 60 − 90 and >90, respectively. Hypertension and aging in both sexes and atherogenic factor in males directly, and in females, directly and indirectly, had decreasing effects on GFR. Blood urea nitrogen and smoking in male and female, directly or indirectly through other variables, were associated with a lower GFR. In females, diabetes had a direct and indirect decreasing effect on GFR. Obesity in females was directly associated with upper and indirectly associated with lower GFR. Conclusion According to our results, aging, hypertension, diabetes, obesity, high lipid profile, and BUN had a decreasing direct and indirect effect on GFR. Although low GFR might have different reasons, our findings, are in line with other reports and provide more detailed information about important risk factors of low GFR. Public awareness of such factors can improve practice of positive health behaviors.
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Affiliation(s)
- Parastoo Jamshidi
- School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farid Najafi
- Research Center for Environmental Determinants of Health (RCEDH), Health Institute, School of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shayan Mostafaei
- Research Center for Environmental Determinants of Health (RCEDH), Health Institute, School of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Epidemiology and Biostatistics Unit, Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ebrahem Shakiba
- Research Center for Environmental Determinants of Health (RCEDH), Health Institute, School of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Yahya Pasdar
- Nutritional Sciences Department, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Behrooz Hamzeh
- Promotion Research Center for Environmental Determinants of Health, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mehdi Moradinazar
- Research Center for Environmental Determinants of Health (RCEDH), Health Institute, School of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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Shinzawa M, Tanaka S, Tokumasu H, Takada D, Tsukamoto T, Yanagita M, Kawakami K. Association of Low Birth Weight With Childhood Proteinuria at Age 3 Years: A Population-Based Retrospective Cohort Study. Am J Kidney Dis 2019; 74:141-143. [PMID: 31133347 DOI: 10.1053/j.ajkd.2019.02.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 02/20/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Maki Shinzawa
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - Shiro Tanaka
- Department of Clinical Biostatistics, Kyoto University, Kyoto, Japan
| | - Hironobu Tokumasu
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - Daisuke Takada
- Department of Nephrology, Kyoto University, Kyoto, Japan
| | | | - Motoko Yanagita
- Department of Nephrology, Kyoto University, Kyoto, Japan; Graduate School of Medicine, and Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, Japan
| | - Koji Kawakami
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan.
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21
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Kohagura K, Furuichi K, Kochi M, Shimizu M, Yuzawa Y, Hara A, Toyama T, Kitamura H, Suzuki Y, Sato H, Uesugi N, Ubara Y, Hoshino J, Hisano S, Ueda Y, Nishi S, Yokoyama H, Nishino T, Ogawa D, Mise K, Shibagaki Y, Kimura K, Haneda M, Makino H, Matsuo S, Wada T. Amplified Association Between Blood Pressure and Albuminuria in Overweight Patients With Biopsy-Proven Hypertensive Nephrosclerosis. Am J Hypertens 2019; 32:486-491. [PMID: 30689693 DOI: 10.1093/ajh/hpz010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 12/25/2018] [Accepted: 01/16/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND An overweight person is at high risk for hypertensive renal damage. The effect of weight on the association between systolic blood pressure (SBP) and albuminuria remains unknown in patients with histologically diagnosed hypertensive nephrosclerosis. METHODS A total of 97 patients with biopsy-confirmed hypertensive nephrosclerosis were recruited from 13 centers throughout Japan. We examined the relationship between SBP and proteinuria among those who were overweight, which is defined as a body mass index ≥25 kg/m2, and those who were not. We examined the interaction of weight and SBP with albuminuria at baseline and with the changes in estimated glomerular filtration rate (eGFR) during the observational period. RESULTS Our results included mean age (54 years old), blood pressure (138/80), eGFR (53 ml/min/1.73 m2), and urine albumin levels (0.2 g/day). SBP was significantly correlated with log-transformed urine albumin levels (r = 0.4, P = 0.01) in patients who were overweight (n = 38) compared with patients who were not overweight (n = 59). Multiple regression analysis revealed that the interaction between being overweight and SBP with respect to albuminuria was significantly correlated with the log-transformed urine albumin level (β = 0.39, P = 0.047) and was independent of age, sex, and potential confounding factors. The interaction between weight and SBP ≥140 mm Hg was significantly associated with a greater decrease in eGFR in the following 3 years. CONCLUSIONS Being overweight may enhance susceptibility to hypertensive glomerular damage and may eventually lead to renal progression in patients with hypertensive nephrosclerosis.
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Affiliation(s)
- Kentaro Kohagura
- Dialysis Unit, University Hospital of the Ryukyus, Okinawa, Japan
| | - Kengo Furuichi
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - Masako Kochi
- Department of Cardiovascular Medicine, Nephrology and Neurology, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Miho Shimizu
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - Yukio Yuzawa
- Department of Nephrology, Fujita Health University Hospital, Toyoake, Aichi, Japan
| | - Akinori Hara
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - Tadashi Toyama
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - Hiroshi Kitamura
- Department of Pathology, Clinical Research Center, National Hospital Organization Chiba-East National Hospital, Chiba, Chiba, Japan
| | - Yoshiki Suzuki
- Health Administration Center, Niigata University, Niigata, Niigata, Japan
| | - Hiroshi Sato
- Clinical Pharmacology and Therapeutics, Tohoku University Graduate School of Pharmaceutical Sciences, Aoba-ku, Sendai, Japan
| | - Noriko Uesugi
- Department of Pathology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | | | | | - Satoshi Hisano
- Department of Pathology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Yoshihiko Ueda
- Department of Pathology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Saitama, Japan
| | - Shinichi Nishi
- Division of Nephrology and Kidney Center, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Hitoshi Yokoyama
- Department of Nephrology, Kanazawa Medical University School of Medicine, Uchinada, Ishikawa, Japan
| | - Tomoya Nishino
- Second Department of Internal Medicine, Nagasaki University School of Medicine, Nagasaki, Japan
| | - Daisuke Ogawa
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kita-ku, Okayama, Japan
| | - Koki Mise
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kita-ku, Okayama, Japan
| | - Yugo Shibagaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Yokohama, Kanagawa, Japan
| | | | - Masakazu Haneda
- Division of Metabolism and Biosystemic Science, Department of Medicine, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Hirofumi Makino
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kita-ku, Okayama, Japan
| | - Seiichi Matsuo
- Division of Nephrology, Department of Internal Medicine, Nagoya University Graduate School of Medicine, Showa-ku, Nagoya, Japan
| | - Takashi Wada
- Department of Nephrology and Laboratory Medicine, Kanazawa University, Kanazawa, Ishikawa, Japan
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Schelb JE, De Paula RB, Ezequiel DGA, Costa MB. Obesidade e doença renal: aspectos fisiopatológicos. HU REVISTA 2019. [DOI: 10.34019/1982-8047.2018.v44.13982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A epidemia de obesidade observada nas últimas décadas é acompanhada de aumento exponencial de doenças crônicas relacionadas, com destaque diabetes mellitus tipo 2, hipertensão arterial sistêmica, dislipidemia e doenças cardiovasculares. Do mesmo modo, a obesidade constitui fator de risco independente para o desenvolvimento de doença renal crônica, condição associada a elevados índices de morbidade e de mortalidade. A obesidade causa lesão renal de maneira indireta, por meio de sua estreita associação com hipertensão arterial sistêmica e com diabetes mellitus tipo 2 e de maneira direta, ao induzir adaptações glomerulares que culminam na glomerulopatia específica da obesidade. Além disso, o excesso de peso contribui para o agravamento de glomerulopatias pré-existentes. Múltiplos fatores explicam o desenvolvimento e o agravamento das lesões renais associadas à obesidade, em especial alterações hemodinâmicas, inflamatórias e metabólicas. Nesse contexto, a redução do peso corporal com ênfase nas alterações metabólicas e inflamatórias bem como o tratamento da hipertensão arterial e do diabetes mellitus constituem o primeiro passo para a prevenção primária e secundária do desenvolvimento de doença renal crônica. Nesta revisão serão apresentados os principais mecanismos fisiopatológicos da lesão renal associada à obesidade.
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Barbieri D, Goicoechea M, Sánchez-Niño MD, Ortiz A, Verde E, Verdalles U, Pérez de José A, Delgado A, Hurtado E, Sánchez-Cámara L, Lopez-Lazareno N, García-Prieto A, Luño J. Obesity and chronic kidney disease progression-the role of a new adipocytokine: C1q/tumour necrosis factor-related protein-1. Clin Kidney J 2018; 12:420-426. [PMID: 31198543 PMCID: PMC6543966 DOI: 10.1093/ckj/sfy095] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Indexed: 01/09/2023] Open
Abstract
Background Obesity is a risk factor for incident chronic kidney disease (CKD) in the general population. C1q/tumour necrosis factor-related protein 1 (CTRP1) is a new adipokine with multiple vascular and metabolic effects and may modulate the association between obesity and vascular diseases. The aim of the study is to explore potential links between obesity, CTRP1 levels and CKD progression. Methods Patients with Stages 3 and 4 CKD without previous cardiovascular events were enrolled and divided into two groups according to body mass index (BMI). Demographic, clinical and analytical data and CTRP1 levels were collected at baseline. During follow-up, renal events [defined as dialysis initiation, serum creatinine doubling or a 50% decrease in estimated glomerular filtration rate (Modification of Diet in Renal Disease)] were registered. Results A total of 71 patients with CKD were divided into two groups: 25 obese (BMI >30 kg/m2) and 46 non-obese. CTRP1 in plasma at baseline was higher in obese patients [median (interquartile range) 360 (148) versus 288 (188) ng/mL, P = 0.041]. No significant association was found between CTRP1 levels and CKD stage, presence of diabetes, aldosterone and renin levels, or blood pressure. Obese patients had higher systolic blood pressure (P = 0.018) and higher high-sensitivity C-reactive protein (P = 0.019) and uric acid (P = 0.003) levels, without significant differences in the percentage of diabetic patients or albuminuria. During a mean follow-up of 65 months, 14 patients had a renal event. Patients with CTRP1 in the lowest tertile had more renal events, both in the overall sample (log rank: 5.810, P = 0.016) and among obese patients (log rank: 5.405, P = 0.020). Higher CTRP1 levels were associated with slower renal progression (hazard ratio 0.992, 95% confidence interval 0.986–0.998; P = 0.001) in a model adjusted for obesity, aspirin, albuminuria and renal function. Conclusions CTRP1 levels are higher in obese than in non-obese patients with CKD. High CTRP1 levels may have a renal protective role since they were associated with slower kidney disease progression. Interventional studies are needed to explore this hypothesis.
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Affiliation(s)
- Diego Barbieri
- Department of Nephrology, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - Marian Goicoechea
- Department of Nephrology, Hospital General Universitario Gregorio Marañon, Madrid, Spain.,Spanish Kidney Research Network (REDinREN), Madrid, Spain
| | - Maria Dolores Sánchez-Niño
- Spanish Kidney Research Network (REDinREN), Madrid, Spain.,Nephrology Department, IIS-Fundación Jimenez Diaz UAM, Madrid, Spain
| | - Alberto Ortiz
- Spanish Kidney Research Network (REDinREN), Madrid, Spain.,Nephrology Department, IIS-Fundación Jimenez Diaz UAM, Madrid, Spain
| | - Eduardo Verde
- Department of Nephrology, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - Ursula Verdalles
- Department of Nephrology, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - Ana Pérez de José
- Department of Nephrology, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - Andrés Delgado
- Department of Nephrology, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - Esther Hurtado
- Department of Nephrology, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - Luis Sánchez-Cámara
- Department of Nephrology, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - Nieves Lopez-Lazareno
- Biochemistry Department, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - Ana García-Prieto
- Department of Nephrology, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - José Luño
- Department of Nephrology, Hospital General Universitario Gregorio Marañon, Madrid, Spain.,Spanish Kidney Research Network (REDinREN), Madrid, Spain
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Relationship between body mass index and renal function deterioration among the Taiwanese chronic kidney disease population. Sci Rep 2018; 8:6908. [PMID: 29720598 PMCID: PMC5932053 DOI: 10.1038/s41598-018-24757-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 03/22/2018] [Indexed: 01/06/2023] Open
Abstract
This study investigated the characteristics of patients with different chronic kidney disease (CKD) stages according to various body mass index (BMI) categories and determined the influence of BMI in renal function deterioration. We conducted a multicenter, longitudinal cohort study based on the Epidemiology and Risk Factors Surveillance of CKD project (2008–2013) and National Health Insurance Research Database (2001–2013). A total of 7357 patients with CKD aged 20–85 years from 14 hospitals were included in the study. A higher male sex, diabetes mellitus (DM) and hypertension were noted among overweight and obese CKD patients, while more cancer prevalence was noted among underweight CKD patients. Charlson comorbidity index was significantly higher and correlated with BMI among late CKD patients. Patients with BMI < 18.5 kg/m2 exhibited non-significantly higher events of eGFR decline events in both early and late CKD stages than other BMI groups. BMI alone is not a determinant of CKD progression among our Taiwanese CKD patients. Obesity should be re-defined and body weight manipulation should be individualized in CKD patients.
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Hieshima K, Suzuki T, Sugiyama S, Kurinami N, Yoshida A, Miyamoto F, Kajiwara K, Jinnouchi T, Jinnouchi H. Smoking Cessation Ameliorates Microalbuminuria With Reduction of Blood Pressure and Pulse Rate in Patients With Already Diagnosed Diabetes Mellitus. J Clin Med Res 2018; 10:478-485. [PMID: 29707089 PMCID: PMC5916536 DOI: 10.14740/jocmr3400w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 03/21/2018] [Indexed: 12/23/2022] Open
Abstract
Background Smoking cessation in newly diagnosed type 2 diabetes patients is reported to be associated with amelioration of metabolic parameters and blood pressure (BP), and the reduction of microalbuminuria. The aim of this study is to demonstrate changes in BP, pulse rate (PR), and microalbuminuria in already diagnosed diabetes patients who quit smoking. Methods We retrospectively evaluated diabetes outpatients who were habitual smokers, and who visited to our smoking cessation clinic. Patients were divided into two groups based on their smoking status at the termination of a 3-month smoking cessation program (smoking cessation group and smoking group), and analyzed systolic and diastolic BPs, PR, HbA1c, and body weight at the start date, and at 1, 3, 6, and 12 months thereafter. The urinary albumin-to-creatinine ratio was also measured at the start date and at 12 months. Results Thirty-five patients met our criteria. Mean diabetes duration was 12 years. Eighteen patients (52%) quit smoking. Success or failure of smoking cessation depended on nicotine dependence rather than good or bad glycemic control. Both BP and PR decreased significantly after 1 month or later in the smoking cessation group without worsening HbA1c, while both parameters did not show any changes in the smoking group. Microalbuminuria was also ameliorated significantly at 12 months compared with that at the start date in the smoking cessation group (95.8 ± 92.9 mg/gCr vs. 75.5 ± 96.3 mg/gCr, P = 0.0059), while it did not show a significant change in the smoking group. (61.9 ± 43.5 mg/gCr vs. 97.7 ± 90.4 mg/gCr, P = 0.1039). Conclusions Smoking cessation might cause a reduction in chronic kidney disease progression through ameliorating microalbuminuria without metabolic adverse effects in patients already diagnosed with diabetes mellitus.
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Affiliation(s)
- Kunio Hieshima
- Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan
| | - Tomoko Suzuki
- Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan
| | - Seigo Sugiyama
- Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan.,Cardiovascular Division, Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan
| | | | - Akira Yoshida
- Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan
| | - Fumio Miyamoto
- Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan
| | - Keizo Kajiwara
- Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan.,Cardiovascular Division, Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan
| | - Tomio Jinnouchi
- Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan.,Cardiovascular Division, Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan.,Division of Preventive Cardiology, Department of Cardiovascular Medicine, Kumamoto University Hospital, Kumamoto, Japan
| | - Hideaki Jinnouchi
- Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan.,Cardiovascular Division, Diabetes Care Center, Jinnouchi Hospital, Kumamoto, Japan.,Division of Preventive Cardiology, Department of Cardiovascular Medicine, Kumamoto University Hospital, Kumamoto, Japan
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26
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Bischoff SC, Boirie Y, Cederholm T, Chourdakis M, Cuerda C, Delzenne NM, Deutz NE, Fouque D, Genton L, Gil C, Koletzko B, Leon-Sanz M, Shamir R, Singer J, Singer P, Stroebele-Benschop N, Thorell A, Weimann A, Barazzoni R. Towards a multidisciplinary approach to understand and manage obesity and related diseases. Clin Nutr 2017; 36:917-938. [DOI: 10.1016/j.clnu.2016.11.007] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 11/03/2016] [Accepted: 11/03/2016] [Indexed: 12/13/2022]
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Menini S, Iacobini C, Pugliese G, Pesce C. Dietary interventions to contrast the onset and progression of diabetic nephropathy: A critical survey of new data. Crit Rev Food Sci Nutr 2017; 58:1671-1680. [PMID: 28128635 DOI: 10.1080/10408398.2016.1278355] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This article is a critical overview of recent contributions on the dietary corrections and the foods that have been claimed to delay or hinder the onset of diabetic nephropathy (DN) and its progression to end-stage renal disease. Innovative dietary and behavioral approaches to the prevention and therapy of DN appear to be the most captivating in consideration of the rather well-established protocols for glucose and blood pressure control in use. In addition to restricted caloric intake to contrast obesity and the metabolic syndrome, adjustments in the patient's macronutrients intake, and in particular some degree of reduction in protein, have been long considered in the prevention of DN progression. More recently, the focus has shifted to the source of proteins and the content of glycotoxins in the diet as well as to the role of specific micronutrients. Few clinical trials have specifically addressed the role of those micronutrients associated with diet proteins that show the most protective effect against DN. Research on clinical outcome and mechanisms of action of such micronutrients appears the most promising in order to develop both effective intervention on nutritional education of the patient and selection of functional foods capable of contrasting the onset and progression of DN.
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Affiliation(s)
- Stefano Menini
- a Department of Clinical and Molecular Medicine , "La Sapienza" University , Rome , Italy
| | - Carla Iacobini
- a Department of Clinical and Molecular Medicine , "La Sapienza" University , Rome , Italy
| | - Giuseppe Pugliese
- a Department of Clinical and Molecular Medicine , "La Sapienza" University , Rome , Italy
| | - Carlo Pesce
- b DINOGMI, University of Genoa Medical School , Genoa , Italy
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Matsumoto A, Nagasawa Y, Yamamoto R, Shinzawa M, Hasuike Y, Kuragano T, Isaka Y, Nakanishi T, Iseki K, Yamagata K, Tsuruya K, Yoshida H, Fujimoto S, Asahi K, Moriyama T, Watanabe T. The association of alcohol and smoking with CKD in a Japanese nationwide cross-sectional survey. Hypertens Res 2017; 40:771-778. [DOI: 10.1038/hr.2017.25] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/11/2017] [Accepted: 01/30/2017] [Indexed: 11/09/2022]
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Shinzawa M, Tanaka S, Tokumasu H, Takada D, Tsukamoto T, Yanagita M, Kawakami K. Maternal Smoking during Pregnancy, Household Smoking after the Child's Birth, and Childhood Proteinuria at Age 3 Years. Clin J Am Soc Nephrol 2017; 12:253-260. [PMID: 28007773 PMCID: PMC5293334 DOI: 10.2215/cjn.05980616] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 10/24/2016] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES Smoking is a well known risk factor of proteinuria in adults; however, clinical studies in children are limited. The purpose of this study is to clarify the associations of maternal smoking during pregnancy and household smoking after the child's birth with the risk of proteinuria at age 3 years old. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We performed a population-based retrospective cohort study on 44,595 children using data on prenatal health checkups, home visit neonatal health checkups, and health checkups at 4, 9, and 18 months and 3 years of age in Kobe City, Japan. Maternal smoking status (nonsmoker, past smoker, or current smoker) was collected with standardized questionnaires. The outcome of interest was the presence of proteinuria at 3 years of age defined as urinary protein ≥1+. To evaluate the association between child proteinuria and smoking status, we performed multivariate logistic regression model analyses adjusted for confounding factors. RESULTS The prevalence rates of children in the maternal smoking groups (none, past, and current) were 78.9%, 4.4%, and 16.7%, respectively. The frequencies of child proteinuria defined as ≥1+ urinary protein were 1.7% in the current smoking group, 1.6% in the past smoking group, and 1.3% in the nonsmoking group. Maternal smoking during pregnancy was associated with child proteinuria (odds ratio, 1.24; 95% confidence interval, 1.00 to 1.52; P=0.05) in the multiple logistic regression model, although nonmaternal family smoking during pregnancy was not significantly associated with child proteinuria (odds ratio, 0.97; 95% confidence interval, 0.79 to 1.19; P=0.77). We also found a similar association with household smoking after the child's birth (odds ratio, 1.23; 95% confidence interval, 0.99 to 1.54; P=0.06), although this observation was not significant. CONCLUSIONS Maternal smoking during pregnancy was one of the risk factors of childhood proteinuria. We also found a similar association with household smoking after the child's birth, although this observation was not significant.
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Affiliation(s)
- Maki Shinzawa
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health and
| | - Shiro Tanaka
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health and
| | - Hironobu Tokumasu
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health and
| | - Daisuke Takada
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tatsuo Tsukamoto
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Motoko Yanagita
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koji Kawakami
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health and
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Liver and kidney toxicity induced by Afzal smokeless tobacco product in Oman. Tissue Cell 2017; 49:307-314. [PMID: 28238347 DOI: 10.1016/j.tice.2017.01.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 01/12/2017] [Accepted: 01/12/2017] [Indexed: 11/21/2022]
Abstract
Afzal, the common smokeless tobacco product (STP) in Oman, is believed to contain toxins that may impair the function of some organs such as liver and kidney. An aqueous extract from Afzal was added to drinking water to be administrated orally to Wistar albino rats (n=72) young and adult from both genders weighing between 60-80g and 150-240g respectively for 8 weeks. Animals were divided into three groups: control (distilled water instead of Afzal extract), low-dose (3mgnicotine/kgbodyweight/day) and high-dose (6mgnicotine/kgbodyweight/day). The animals were euthanized and their blood, liver and kidney were collected for biochemical and histopathological investigations. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were assayed for the liver function, while blood urea nitrogen (BUN) and creatinine (CRT) were assayed for the kidney function. The results showed a significant increase in the ALT, AST, BUN and CRT levels (P<0.05) in both Afzal-treated groups (low and high doses) compared with the control. Histopathological findings revealed the initial but seem to be serious degenerative alterations of periportal fibrosis in liver and edematous and calcified changes in renal glomerulus among Afzal-treated groups. Additionally, the weight gain of the Afzal-treated groups was lower than the control group. Our findings show that the exposure of Wistar rats to the Afzal extract has the potentials of causing decreased weight gain and dose-dependent functional and structural damage to the biochemical and histological profiles of liver and kidney as well as serious biochemical effects.
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Wakasugi M, Kazama J, Narita I, Iseki K, Fujimoto S, Moriyama T, Yamagata K, Konta T, Tsuruya K, Asahi K, Kondo M, Kurahashi I, Ohashi Y, Kimura K, Watanabe T. Association between Overall Lifestyle Changes and the Incidence of Proteinuria: A Population-based, Cohort Study. Intern Med 2017. [PMID: 28626171 PMCID: PMC5505901 DOI: 10.2169/internalmedicine.56.8006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Objective This study aimed to examine the association between the changes in an overall healthy lifestyle, as quantified by the number of unhealthy lifestyle factors and obesity status, and the incidence of proteinuria in the general Japanese population. Methods A retrospective cohort study was conducted among 99,404 (men, 36.9%) participants aged from 40-74 years of age who underwent two health check-ups with a 1-year interval in Japan between 2008 and 2009. Any participants with chronic kidney disease at baseline were excluded. The smoking status, body mass index, physical activity, alcohol consumption, and healthy eating habits were combined into a simple overall healthy lifestyle score ranging from 0 to 5. The changes in overall healthy lifestyle scores from baseline (range, -5 to +5) and the incidence of proteinuria, defined by a dipstick urinalysis (score ≥1+), were assessed at the second check-up. A logistic regression analysis was used to examine the association between the changes in overall healthy lifestyle scores and the incidence of proteinuria. Results After one year of follow-up, 3.9% of men and 2.4% of women developed proteinuria. Each increase (or decrease) in the changes in overall healthy lifestyle scores was associated with a reduced (or increased) risk of proteinuria in both men (odds ratio (OR) 0.87; 95% confidence interval (CI), 0.81-0.94) and women (OR 0.87; 95%CI, 0.80-0.94) after adjusting for age, baseline lifestyle scores, hypertension, diabetes mellitus, and hypercholesterolemia. Stratified analyses based on age, the presence or absence of hypertension, or diabetes mellitus revealed similar results. Conclusion Overall lifestyle changes, even within a year, were found to influence the incidence of proteinuria.
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Affiliation(s)
- Minako Wakasugi
- Division of Comprehensive Geriatrics in Community, Niigata University Graduate School of Medical and Dental Sciences, Japan
| | - Junichiro Kazama
- Departments of Nephrology and Hypertension, Fukushima Medical University, Japan
| | - Ichiei Narita
- Steering Committee for "Design of the comprehensive health care system for chronic kidney disease based on the individual risk assessment by Specific Health Checkups", Japan
| | - Kunitoshi Iseki
- Steering Committee for "Design of the comprehensive health care system for chronic kidney disease based on the individual risk assessment by Specific Health Checkups", Japan
| | - Shouichi Fujimoto
- Steering Committee for "Design of the comprehensive health care system for chronic kidney disease based on the individual risk assessment by Specific Health Checkups", Japan
| | - Toshiki Moriyama
- Steering Committee for "Design of the comprehensive health care system for chronic kidney disease based on the individual risk assessment by Specific Health Checkups", Japan
| | - Kunihiro Yamagata
- Steering Committee for "Design of the comprehensive health care system for chronic kidney disease based on the individual risk assessment by Specific Health Checkups", Japan
| | - Tsuneo Konta
- Steering Committee for "Design of the comprehensive health care system for chronic kidney disease based on the individual risk assessment by Specific Health Checkups", Japan
| | - Kazuhiko Tsuruya
- Steering Committee for "Design of the comprehensive health care system for chronic kidney disease based on the individual risk assessment by Specific Health Checkups", Japan
| | - Koichi Asahi
- Steering Committee for "Design of the comprehensive health care system for chronic kidney disease based on the individual risk assessment by Specific Health Checkups", Japan
| | - Masahide Kondo
- Steering Committee for "Design of the comprehensive health care system for chronic kidney disease based on the individual risk assessment by Specific Health Checkups", Japan
| | | | - Yasuo Ohashi
- Department of Integrated Science and Engineering for Sustainable Society, Chuo University, Japan
| | - Kenjiro Kimura
- Steering Committee for "Design of the comprehensive health care system for chronic kidney disease based on the individual risk assessment by Specific Health Checkups", Japan
| | - Tsuyoshi Watanabe
- Steering Committee for "Design of the comprehensive health care system for chronic kidney disease based on the individual risk assessment by Specific Health Checkups", Japan
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Lan X, Lederman R, Eng JM, Shoshtari SSM, Saleem MA, Malhotra A, Singhal PC. Nicotine Induces Podocyte Apoptosis through Increasing Oxidative Stress. PLoS One 2016; 11:e0167071. [PMID: 27907022 PMCID: PMC5132002 DOI: 10.1371/journal.pone.0167071] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 10/20/2016] [Indexed: 12/15/2022] Open
Abstract
Background Cigarette smoking plays an important role in the progression of chronic kidney disease (CKD). Nicotine, one of the major components of cigarette smoking, has been demonstrated to increase proliferation of renal mesangial cells. In this study, we examined the effect of nicotine on podocyte injury. Methods To determine the expression of nicotinic acetylcholine receptors (nAChR subunits) in podocytes, cDNAs and cell lysate of cultured human podocytes were used for the expression of nAChR mRNAs and proteins, respectively; and mouse renal cortical sections were subjected to immunofluorescant staining. We also studied the effect of nicotine on podocyte nephrin expression, reactive oxygen species (ROS) generation (via DCFDA loading followed by fluorometric analysis), proliferation, and apoptosis (morphologic assays). We evaluated the effect of nicotine on podocyte downstream signaling including phosphorylation of ERK1/2, JNK, and p38 and established causal relationships by using respective inhibitors. We used nAChR antagonists to confirm the role of nicotine on podocyte injury. Results Human podocytes displayed robust mRNA and protein expression of nAChR in vitro studies. In vivo studies, mice renal cortical sections revealed co-localization of nAChRs along with synaptopodin. In vitro studies, nephrin expression in podocyte was decreased by nicotine. Nicotine stimulated podocyte ROS generation; nonetheless, antioxidants such as N-acetyl cysteine (NAC) and TEMPOL (superoxide dismutase mimetic agent) inhibited this effect of nicotine. Nicotine did not modulate proliferation but promoted apoptosis in podocytes. Nicotine enhanced podocyte phosphorylation of ERK1/2, JNK, and p38, and their specific inhibitors attenuated nicotine-induced apoptosis. nAChR antagonists significantly suppressed the effects of nicotine on podocyte. Conclusions Nicotine induces podocyte apoptosis through ROS generation and associated downstream MAPKs signaling. The present study provides insight into molecular mechanisms involved in smoking associated progression of chronic kidney disease.
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Affiliation(s)
- Xiqian Lan
- Renal Molecular Research Laboratory, Feinstein Institute for Medical Research, Hofstra North Shore LIJ Medical School, New York, United States of America
- * E-mail: (XL); (PS)
| | - Rivka Lederman
- Renal Molecular Research Laboratory, Feinstein Institute for Medical Research, Hofstra North Shore LIJ Medical School, New York, United States of America
| | - Judith M. Eng
- Renal Molecular Research Laboratory, Feinstein Institute for Medical Research, Hofstra North Shore LIJ Medical School, New York, United States of America
| | - Seyedeh Shadafarin Marashi Shoshtari
- Renal Molecular Research Laboratory, Feinstein Institute for Medical Research, Hofstra North Shore LIJ Medical School, New York, United States of America
| | - Moin A. Saleem
- Academic Renal Unit, Southmead Hospital, Bristol, United Kingdom
| | - Ashwani Malhotra
- Renal Molecular Research Laboratory, Feinstein Institute for Medical Research, Hofstra North Shore LIJ Medical School, New York, United States of America
| | - Pravin C. Singhal
- Renal Molecular Research Laboratory, Feinstein Institute for Medical Research, Hofstra North Shore LIJ Medical School, New York, United States of America
- * E-mail: (XL); (PS)
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Abstract
Insulin resistance is a systemic disorder that affects many organs and insulin-regulated pathways. The disorder is characterized by a reduced action of insulin despite increased insulin concentrations (hyperinsulinaemia). The effects of insulin on the kidney and vasculature differ in part from the effects on classical insulin target organs. Insulin causes vasodilation by enhancing endothelial nitric oxide production through activation of the phosphatidylinositol 3-kinase pathway. In insulin-resistant states, this pathway is impaired and the mitogen-activated protein kinase pathway stimulates vasoconstriction. The action of insulin on perivascular fat tissue and the subsequent effects on the vascular wall are not fully understood, but the hepatokine fetuin-A, which is released by fatty liver, might promote the proinflammatory effects of perivascular fat. The strong association of salt-sensitive arterial hypertension with insulin resistance indicates an involvement of the kidney in the insulin resistance syndrome. The insulin receptor is expressed on renal tubular cells and podocytes and insulin signalling has important roles in podocyte viability and tubular function. Renal sodium transport is preserved in insulin resistance and contributes to the salt-sensitivity of blood pressure in hyperinsulinaemia. Therapeutically, renal and vascular insulin resistance can be improved by an integrated holistic approach aimed at restoring overall insulin sensitivity and improving insulin signalling.
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Arinsoy T, Deger SM, Ates K, Altun B, Ecder T, Camsari T, Serdengecti K, Suleymanlar G. Prevalence of Chronic Kidney Disease in Turkish Adults With Obesity and Metabolic Syndrome: A Post Hoc Analysis from Chronic Renal Disease in Turkey Study. J Ren Nutr 2016; 26:373-379. [PMID: 27641823 DOI: 10.1053/j.jrn.2016.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 08/04/2016] [Accepted: 08/05/2016] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Obesity confers an increased risk of chronic kidney disease (CKD), which is increased further by accompanying metabolic abnormalities. OBJECTIVE To investigate the relationship of the risk of CKD with obesity and metabolic syndrome (MS) in adults by means of post hoc analysis of data from the Chronic Renal Disease in Turkey (CREDIT) study. METHODS The anthropometric measurements of a total of 9,100 adult participants in the CREDIT study were included in the analyses. Subjects were classified according to the presence or absence of obesity (body mass index [BMI] > 30) and MS. Logistic regression analyses were used to estimate odds ratio for CKD. Effect modification analyses were also performed. RESULTS The prevalence of obesity was 20.6% and that of MS was 31.3%. The prevalence of CKD was higher among obese subjects compared to those with a normal BMI (20.5% vs. 14%; P < .001). The odds ratio (OR) for CKD was 1.296 (95% confidence interval [CI], 1.121-1.498) for subjects who were overweight, 1.718 (95% CI, 1.444-2.044) for those with class I obesity, 1.983 (95% CI, 1.489-2.641) for those with class II obesity and 2.799 (95% CI, 1.719-4.557) for subjects with extreme obesity (P < .001 for each subgroup) compared to subjects with a normal BMI. CKD was significantly more prevalent in subjects with MS (21.9% vs. 12.3%, P < .001). The OR for CKD was higher in obese subjects with MS (adjusted OR, 1.321; 95% CI, 1.109-1.573; P = .002). CONCLUSION The stratification of obese individuals based on their metabolic phenotype is important for prevention and treatment of CKD.
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Affiliation(s)
- Turgay Arinsoy
- Department of Nephrology, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Serpil Muge Deger
- Department of Nephrology, Faculty of Medicine, Gazi University, Ankara, Turkey.
| | - Kenan Ates
- Department of Nephrology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Bulent Altun
- Department of Nephrology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Tevfik Ecder
- Department of Nephrology, Istanbul School of Medicine, Istanbul University, Istanbul, Turkey
| | - Taner Camsari
- Department of Nephrology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Kamil Serdengecti
- Department of Nephrology, Cerrahpasa School of Medicine, Istanbul University, Istanbul, Turkey
| | - Gultekin Suleymanlar
- Department of Nephrology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
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Tanaka S, Ninomiya T, Fujisaki K, Yoshida H, Nagata M, Masutani K, Tokumoto M, Mitsuiki K, Hirakata H, Fujimi S, Kiyohara Y, Kitazono T, Tsuruya K. The Fukuoka Kidney disease Registry (FKR) Study: design and methods. Clin Exp Nephrol 2016; 21:465-473. [PMID: 27339444 DOI: 10.1007/s10157-016-1294-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 06/08/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Chronic kidney disease (CKD) is an established independent risk factor for progression to end-stage renal disease (ESRD) and incidence of cardiovascular disease (CVD). The onset and progression of CKD are associated with both genetic predisposition and various lifestyle-related factors, but little is known about the influence of genetic-environmental interactions on the incidence of ESRD or CVD in patients with CKD. METHODS The Fukuoka Kidney disease Registry (FKR) Study is designed as one of the largest prospective, multicenter, observational cohort studies in non-dialysis dependent CKD patients. The FKR Study aims to enroll approximately 5000 individuals at multiple clinical centers and follow them for up to at least 5 years. At baseline, subjects enrolled in the FKR Study will fill out extensive lifestyle-related questionnaires. Further, their health status and treatments will be monitored annually through a research network of nephrology centers. Blood and urine samples, including DNA/RNA, will be collected at the time of enrolment and every 5-years follow-up. CONCLUSIONS The FKR Study will provide many insights into the onset and progression of CKD, which will suggest hypothesis-driven interventional clinical trials aimed at reducing the burden of CKD. The features of the FKR Study may also facilitate innovative research to identify and validate novel risk factors, including genetic susceptibility and biomarkers, using biomaterials by high-throughput omics technologies.
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Affiliation(s)
- Shigeru Tanaka
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Internal Medicine, Fukuoka Dental College, Fukuoka, Japan
| | - Toshiharu Ninomiya
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Division of Research Management, Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kiichiro Fujisaki
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hisako Yoshida
- Department of Integrated Therapy for Chronic Kidney Disease, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masaharu Nagata
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kosuke Masutani
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masanori Tokumoto
- Department of Internal Medicine, Fukuoka Dental College, Fukuoka, Japan
| | - Koji Mitsuiki
- Division of Nephrology and Dialysis Center, Japanese Red Cross Fukuoka Hospital, Fukuoka, Japan
| | - Hideki Hirakata
- Division of Nephrology and Dialysis Center, Japanese Red Cross Fukuoka Hospital, Fukuoka, Japan
| | | | - Yutaka Kiyohara
- Department of Environmental Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takanari Kitazono
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuhiko Tsuruya
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. .,Department of Integrated Therapy for Chronic Kidney Disease, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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Okumi M, Unagami K, Tachibana H, Hirai T, Ishida H, Tanabe K. Association between body mass index and outcomes in Japanese living kidney transplant recipients: The role of sex differences. Int J Urol 2016; 23:776-84. [DOI: 10.1111/iju.13135] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 05/05/2016] [Indexed: 12/30/2022]
Affiliation(s)
- Masayoshi Okumi
- Department of Urology; Tokyo Women's Medical University; Tokyo Japan
| | - Kohei Unagami
- Department of Medicine; Kidney Center; Tokyo Women's Medical University; Tokyo Japan
| | | | - Toshihito Hirai
- Department of Urology; Tokyo Women's Medical University; Tokyo Japan
| | - Hideki Ishida
- Department of Urology; Tokyo Women's Medical University; Tokyo Japan
| | - Kazunari Tanabe
- Department of Urology; Tokyo Women's Medical University; Tokyo Japan
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Zammit AR, Katz MJ, Derby C, Bitzer M, Lipton RB. Abdominal obesity is a risk factor for dysexecutive function in chronic kidney disease. Prev Med Rep 2016; 4:128-33. [PMID: 27413673 PMCID: PMC4929124 DOI: 10.1016/j.pmedr.2016.06.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 06/01/2016] [Accepted: 06/05/2016] [Indexed: 12/29/2022] Open
Abstract
The aim of this study was to assess the influence of the metabolic syndrome and its components on dysexecutive function (DF) in individuals with and without CKD. Among 588 participants aged over 70 from the Einstein Aging Study (EAS), we defined DF as performance of 2SDs below the mean on any one test or 1.5SDs below the mean on any two of the following: Block Design, Digit Symbol Coding and the Trail-making Tests A and B. We defined CKD as an eGFR below 60 mL/min/m2. MetS was defined according to recent guidelines from the National Cholesterol Education Program. 149 participants had CKD at cross-section, 16.1% of which also showed DF. Of the 439 participants without CKD, 12.3% displayed DF. Abdominal obesity as measured by waist circumference, was an independent risk factor for dysexecutive function in CKD (OR = 14.3, 95%CI = 2.21–91.93, p = 0.005) but not in non-CKD. None of the other MetS components were associated with DF. Results suggested that abdominal obesity, recognized as an integral part of the MetS, is a strong risk factor for DF in individuals with CKD. The most prevalent components of the MetS were hypertension and abdominal obesity. Abdominal obesity was the only component significantly associated with DF in CKD. In non-CKD participants, MetS components were not associated with DF. Absence of CKD and MetS are significantly associated with lowered odds of DF. Abdominal obesity was a stronger risk factor for DF than the MetS composite in CKD.
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Affiliation(s)
- Andrea R Zammit
- Saul B. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, United States; Einstein Aging Study, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Mindy J Katz
- Saul B. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, United States; Einstein Aging Study, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Carol Derby
- Saul B. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, United States; Einstein Aging Study, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Markus Bitzer
- Department of Internal Medicine, University of Michigan, MI, United States
| | - Richard B Lipton
- Saul B. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, United States; Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, United States
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Ohkuma T, Nakamura U, Iwase M, Ide H, Fujii H, Jodai T, Kaizu S, Kikuchi Y, Idewaki Y, Sumi A, Hirakawa Y, Kitazono T. Effects of smoking and its cessation on creatinine- and cystatin C-based estimated glomerular filtration rates and albuminuria in male patients with type 2 diabetes mellitus: the Fukuoka Diabetes Registry. Hypertens Res 2016; 39:744-751. [PMID: 27250568 DOI: 10.1038/hr.2016.51] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/11/2016] [Accepted: 03/17/2016] [Indexed: 12/19/2022]
Abstract
Cigarette smoking is an important modifiable risk factor for lifestyle diseases. The smoking rate remains high, and the prevalence of diabetes mellitus is increasing in Asian countries; however, few studies have examined the effects of smoking on chronic kidney disease (CKD) in Asian diabetic patients. The aim of the present study was to investigate the association between smoking and its cessation with CKD and its components in patients with type 2 diabetes. A total of 2770 Japanese male patients with type 2 diabetes aged ⩾20 years were divided according to the amount of cigarette smoking and the years since cessation. The associations with CKD, the urinary albumin-creatinine ratio (UACR) and the estimated glomerular filtration rate (eGFR) were cross-sectionally examined. The proportions of CKD and the mean UACR dose-dependently increased with increases in both the number of cigarettes per day and the Brinkman index compared with the never smokers. The creatinine-based eGFR also increased with increases in the amount of smoking, whereas the cystatin C-based eGFR decreased, and their average did not significantly change. These parameters exhibited inverse associations with the years after smoking cessation compared with the association with the amount of smoking. A dose-dependent association of active smoking and a graded inverse association of the years since quitting with CKD enhance the merit of smoking cessation in patients with type 2 diabetes.
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Affiliation(s)
- Toshiaki Ohkuma
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Udai Nakamura
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masanori Iwase
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Diabetes Center, Hakujyuji Hospital, Fukuoka, Japan
| | - Hitoshi Ide
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroki Fujii
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Division of General Internal Medicine, School of Oral Health Science, Kyushu Dental University, Kitakyushu, Japan
| | - Tamaki Jodai
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shinako Kaizu
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yohei Kikuchi
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasuhiro Idewaki
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Diabetes Center, Hakujyuji Hospital, Fukuoka, Japan
| | - Akiko Sumi
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoichiro Hirakawa
- Department of Environmental Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takanari Kitazono
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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He Y, Li F, Wang F, Ma X, Zhao X, Zeng Q. The association of chronic kidney disease and waist circumference and waist-to-height ratio in Chinese urban adults. Medicine (Baltimore) 2016; 95:e3769. [PMID: 27336864 PMCID: PMC4998302 DOI: 10.1097/md.0000000000003769] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
This study aims to investigate the association of body mass index (BMI), waist circumference (WC), and waist-to-height ratio (WHtR) with chronic kidney disease (CKD).A cross-sectional survey was conducted in a nationally representative sample of 123,629 Chinese urban adults who participated in health examinations between 2008 and 2009. BMI, WC, and WHtR were measured, as well as serum and urine biochemical tests. CKD was defined as an estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m or urine protein positivity (proteinuria)≥1+ with dipstick testing.WHtR had the largest areas under ROC curve for CKD in men and women, followed by WC and BMI. Higher levels of BMI, WC, and WHtR were each associated with an increased odds for CKD among men. For per unit size change, the multivariable-adjusted odds ratios (ORs) and 95% confidence intervals (CIs) of CKD were 1.19 (95% CI, 1.13-1.25) for BMI, 1.12 (95% CI, 1.08-1.16) for WC, and 1.13 (95% CI, 1.10-1.17) for WHtR. The corresponding values were significant in multivariable models among women aged 40 years and above. Using Chinese-recommended cutoffs for BMI (≥24 kg/m), WC (≥85 cm for men, and ≥80 cm for women), and WHtR (≥0.05), WHtR was superior in the association with CKD than BMI for men, whereas WC was superior for women.Increased obesity indices were positively associated with the odds of CKD. Central obesity, defined by WC and WHtR, may be more closely correlated with CKD for Chinese urban adults.
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Affiliation(s)
- Yuan He
- National Research Institute for Family Planning
- Health Management Institute, People's Liberation Army General Hospital, Beijing
| | - Fan Li
- Health Management Institute, People's Liberation Army General Hospital, Beijing
| | - Fei Wang
- Health Management Institute, People's Liberation Army General Hospital, Beijing
| | - Xu Ma
- National Research Institute for Family Planning
| | - Xiaolan Zhao
- Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Qiang Zeng
- Health Management Institute, People's Liberation Army General Hospital, Beijing
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Sakurai M, Kobayashi J, Takeda Y, Nagasawa SY, Yamakawa J, Moriya J, Mabuchi H, Nakagawa H. Sex Differences in Associations Among Obesity, Metabolic Abnormalities, and Chronic Kidney Disease in Japanese Men and Women. J Epidemiol 2016; 26:440-6. [PMID: 27087606 PMCID: PMC4967665 DOI: 10.2188/jea.je20150208] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Aims The present study aimed to investigate relationships among abdominal obesity, metabolic abnormalities, and the prevalence of chronic kidney disease (CKD) in relatively lean Japanese men and women. Participants and methods The participants included 8133 men and 15 934 women between 40 and 75 years of age recruited from the government health check-up center in Kanazawa City, Japan. The prevalence of abdominal obesity, high blood pressure, dyslipidemia, and high fasting plasma glucose levels were assessed according to the Japanese criteria for metabolic syndrome. The estimated glomerular filtration rate (eGFR) was calculated using the modified Modification of Diet in Renal Disease equation for the Japanese population, and participants with an eGFR <60 mL/min/1.73 m2 and/or proteinuria were diagnosed with CKD. Results Overall, 23% of males and 14% of females met criteria for CKD. Having more numerous complicated metabolic abnormalities was significantly associated with a higher odds ratio (OR) of CKD for men and women, irrespective of abdominal obesity. However, there was a sex difference in the OR of CKD for obese participants without metabolic abnormalities, such that abdominal obesity without metabolic abnormalities was significantly associated with a higher OR for men (multivariate-adjusted OR 1.63; 95% confidence interval [CI], 1.16–2.28) but not for women (OR 1.01; 95% CI, 0.71–1.44). Conclusions The present findings demonstrated that obesity without metabolic abnormalities was associated with a higher risk of CKD in men but not women in a relatively lean Japanese population.
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Affiliation(s)
- Masaru Sakurai
- Department of Epidemiology and Public Health, Kanazawa Medical University
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41
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Yeom H, Lee JH, Kim HC, Suh I. The Association Between Smoking Tobacco After a Diagnosis of Diabetes and the Prevalence of Diabetic Nephropathy in the Korean Male Population. J Prev Med Public Health 2016; 49:108-17. [PMID: 27055547 PMCID: PMC4829370 DOI: 10.3961/jpmph.15.062] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 03/13/2016] [Indexed: 01/29/2023] Open
Abstract
Objectives: Smoking is known to be associated with nephropathy in patients with diabetes. The distinct effects of smoking before and after diabetes has been diagnosed, however, are not well characterized. We evaluated the association of cigarette smoking before and after a diagnosis of diabetes with the presence of diabetic nephropathy. Methods: We analyzed data from the 2011-2013 editions of the Korea National Health and Nutrition Examination Survey. A total of 629 male patients diagnosed with diabetes were classified as non-smokers (90 patients), former smokers (225 patients), or continuing smokers (314 patients). A “former smoker” was a patient who smoked only before receiving his diagnosis of diabetes. A “continuing smoker” was a patient who smoked at any time after his diabetes had been diagnosed. Diabetic nephropathy was defined as the presence of albuminuria (spot urine albumin/creatinine ratio ≥30 mg/g) or low estimated glomerular filtration rate (<60 mL/min/1.73 m2). Multiple logistic regression models were used to assess the independent association after adjusting for age, duration of diabetes, hemoglobin A1c, body mass index, systolic blood pressure, medication for hypertension, and medication for dyslipidemia. Female patients were excluded from the study due to the small proportion of females in the survey who smoked. Results: Compared to non-smokers, continuing smokers had significantly higher odds ratio ([OR], 2.17; 95% confidence interval [CI], 1.23 to 3.83) of suffering from diabetic nephropathy. The corresponding OR (95% CI) for former smokers was 1.26 (0.70 to 2.29). Conclusions: Smoking after diagnosis of diabetes is significantly associated with the presence of diabetic nephropathy in the Korean male population.
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Affiliation(s)
- Hyungseon Yeom
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Hyun Lee
- Department of Preventive Medicine, Graduate School of Public Health, Yonsei University, Seoul, Korea
| | - Hyeon Chang Kim
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Il Suh
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
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Fu Q, Colgan SP, Shelley CS. Hypoxia: The Force that Drives Chronic Kidney Disease. Clin Med Res 2016; 14:15-39. [PMID: 26847481 PMCID: PMC4851450 DOI: 10.3121/cmr.2015.1282] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 09/30/2015] [Indexed: 12/15/2022]
Abstract
In the United States the prevalence of end-stage renal disease (ESRD) reached epidemic proportions in 2012 with over 600,000 patients being treated. The rates of ESRD among the elderly are disproportionally high. Consequently, as life expectancy increases and the baby-boom generation reaches retirement age, the already heavy burden imposed by ESRD on the US health care system is set to increase dramatically. ESRD represents the terminal stage of chronic kidney disease (CKD). A large body of evidence indicating that CKD is driven by renal tissue hypoxia has led to the development of therapeutic strategies that increase kidney oxygenation and the contention that chronic hypoxia is the final common pathway to end-stage renal failure. Numerous studies have demonstrated that one of the most potent means by which hypoxic conditions within the kidney produce CKD is by inducing a sustained inflammatory attack by infiltrating leukocytes. Indispensable to this attack is the acquisition by leukocytes of an adhesive phenotype. It was thought that this process resulted exclusively from leukocytes responding to cytokines released from ischemic renal endothelium. However, recently it has been demonstrated that leukocytes also become activated independent of the hypoxic response of endothelial cells. It was found that this endothelium-independent mechanism involves leukocytes directly sensing hypoxia and responding by transcriptional induction of the genes that encode the β2-integrin family of adhesion molecules. This induction likely maintains the long-term inflammation by which hypoxia drives the pathogenesis of CKD. Consequently, targeting these transcriptional mechanisms would appear to represent a promising new therapeutic strategy.
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Affiliation(s)
- Qiangwei Fu
- Kabara Cancer Research Institute, La Crosse, WI
| | - Sean P Colgan
- Mucosal Inflammation Program and University of Colorado School of Medicine, Aurora, CO
| | - Carl Simon Shelley
- University of Wisconsin School of Medicine and Public Health, Madison, WI
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Noh HM, Kim UY, Park YS, Song YR, Oh HY, Park KH, Paek YJ, Roh YK, Song HJ. Sex differences in the association between obesity and albuminuria among Korean adults: a cross-sectional study using the Korea National Health and Nutrition Examination Survey data. Clin Exp Nephrol 2016; 21:27-34. [PMID: 26902522 PMCID: PMC5283500 DOI: 10.1007/s10157-016-1238-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 01/19/2016] [Indexed: 11/26/2022]
Abstract
Background The association between obesity and albuminuria in the general population remains unclear. We aimed to identify the association between obesity and albuminuria as well as sex differences regarding the associations using several obesity indices, including waist circumference (WC), body mass index (BMI), and waist-to-height ratio (WHR). Methods This study included 3841 subjects (1730 males and 2111 females; age 20–80 years) who participated in the Fifth Korea National Health and Nutrition Examination Survey conducted in 2011. Subjects with hypertension, diabetes, renal failure, or a malignant tumor and those who were pregnant or menstruating were excluded. Albuminuria was defined as a urinary albumin-to-creatinine ratio ≥30 mg/g. Anthropometric parameters were categorized into sex-specific quartiles. Logistic regression models were used to assess the associations between each anthropometric parameter and albuminuria. Results All of the obesity indices of the fourth quartile group of females showed a twofold higher risk for albuminuria than the second quartile group, and it was persistently significant after adjusting for age, smoking, and physical activity. After further adjustment for high blood pressure and impaired fasting glucose and triglyceride levels, WC and BMI of the fourth quartile group of females still showed a significantly higher risk for albuminuria than the second quartile group (odds ratios 1.96 and 2.24; 95 % confidence intervals 1.03–3.74 and 1.15–4.37). None of the associations between albuminuria and the obesity indices were significant in males. Conclusion Higher WC and BMI were significantly associated with the risk of albuminuria among females, but not males. Electronic supplementary material The online version of this article (doi:10.1007/s10157-016-1238-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hye-Mi Noh
- Department of Family Medicine, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, 431-796, Republic of Korea
| | - Un-Young Kim
- Daejeon Woori Spine Hospital, Daejeon, Republic of Korea
| | - Yong Soon Park
- Department of Family Medicine, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Republic of Korea
| | - Young Rim Song
- Department of Internal Medicine, Kidney Research Institute, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, Republic of Korea
| | - Hye-Young Oh
- Department of Family Medicine, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, 431-796, Republic of Korea
| | - Kyung-Hee Park
- Department of Family Medicine, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, 431-796, Republic of Korea
| | - Yu-Jin Paek
- Department of Family Medicine, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, 431-796, Republic of Korea
| | - Yong Kyun Roh
- Department of Family Medicine, Kangnam Sacred Heart Hospital, Seoul, Republic of Korea.
| | - Hong Ji Song
- Department of Family Medicine, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, 431-796, 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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45
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Affiliation(s)
- Marcello Tonelli
- From Department of Medicine, University of Calgary, AB, Canada (M.T.); Department of Medicine and Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, and Howard Hughes Medical Institute, Chevy Chase, MD (S.A.K..); and Division of Nephrology, Massachusetts General Hospital, Harvard Medical School, Boston (R.T.)
| | - S. Ananth Karumanchi
- From Department of Medicine, University of Calgary, AB, Canada (M.T.); Department of Medicine and Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, and Howard Hughes Medical Institute, Chevy Chase, MD (S.A.K..); and Division of Nephrology, Massachusetts General Hospital, Harvard Medical School, Boston (R.T.)
| | - Ravi Thadhani
- From Department of Medicine, University of Calgary, AB, Canada (M.T.); Department of Medicine and Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, and Howard Hughes Medical Institute, Chevy Chase, MD (S.A.K..); and Division of Nephrology, Massachusetts General Hospital, Harvard Medical School, Boston (R.T.)
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Zhang X, Lerman LO. Obesity and renovascular disease. Am J Physiol Renal Physiol 2015; 309:F273-9. [PMID: 26041447 DOI: 10.1152/ajprenal.00547.2014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 06/02/2015] [Indexed: 12/19/2022] Open
Abstract
Obesity remains a prominent public health concern. Obesity not only contributes greatly to cardiovascular events but has also been identified to initiate and affect the progression of preexisting chronic kidney disease. The prevalence of renal artery stenosis is growing world-wide, especially in the elderly population and in individuals with atherosclerotic risk factors such as obesity. Prolonged renovascular disease causes inflammation and microvascular remodeling within the post-stenotic kidney, which promote tissue scarring and may account for irreversible renal damage. Obesity has been shown to aggravate kidney damage via several pathways, including exacerbation of microvascular regression and renal cell injury mediated by adipocytes and insulin resistance, thereby worsening the structural and functional outcomes of the kidney in renovascular disease. Dietary modification and inhibition of the renin-angiotensin-aldosterone system have been shown to alleviate obesity-induced tissue injury and remodeling. Possibly, angiogenic factors may boost microvascular repair in the ischemic kidney in the obesity milieu. Novel therapeutic interventions targeting deleterious pathways that are activated by obesity and responsible for kidney damage need to be explored in future studies.
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Affiliation(s)
- Xin Zhang
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota; and
| | - Lilach O Lerman
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota; and Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
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Li WC, Chen JY, Lee YY, Weng YM, Hsiao CT, Loke SS. Association between waist-to-height ratio and chronic kidney disease in the Taiwanese population. Intern Med J 2015; 44:645-52. [PMID: 24766187 DOI: 10.1111/imj.12459] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 04/20/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Obesity, metabolic syndrome (MS) and chronic kidney disease (CKD) are all becoming increasingly prevalent worldwide. Body mass index (BMI) has traditionally been employed to identify overweight or obese individuals, yet multiple studies have yielded conflicting results when BMI was used to evaluate the association between obesity and CKD. AIMS The purpose of this large, population-based, multicentre study was to evaluate the associations of BMI and waist-to-height ratio (WHtR) with CKD. METHODS A retrospective study of 41,600 subjects who had physical examinations from January 2010 to December 2011 was performed. Data such as life style and habits were collected by interviews, and systolic and diastolic blood pressure (SBP and DBP), height, body weight, waist circumference, total cholesterol (TC), high-density lipoproteins (HDL), triglycerides (TG), fasting blood glucose and creatinine levels were measured. The association of these factors with CKD was analysed by use of SPSS 15.0 software. RESULTS The key findings of this study were that WHtR but not BMI was an independent predictor of CKD. Additionally, SBP was a predictor of CKD in males and females, and TG and TC were independent predictors of CKD in females. Such measures are components of MS, which may also be associated with the development of CKD. CONCLUSION WHtR appears to be a better measure of central obesity than BMI, and is an easy-to-use, noninvasive tool for identifying individuals at risk of developing obesity-related CKD, and potentially also MS-related CKD.
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Affiliation(s)
- W-C Li
- Department of Occupation Medicine, Keelung Chang-Gung Memorial Hospital, Keelung, Taiwan
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Nishikawa K, Takahashi K, Okutani T, Yamada R, Kinaga T, Matsumoto M, Yamamoto M. Risk of chronic kidney disease in non-obese individuals with clustering of metabolic factors: a longitudinal study. Intern Med 2015; 54:375-82. [PMID: 25748952 DOI: 10.2169/internalmedicine.54.3092] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE The impact of the clustering of metabolic factors on chronic kidney disease (CKD) in non-obese individuals remains unclear. METHODS We conducted a follow-up study of 23,894 Japanese adults (age, 18-69 years) who continuously received annual health examinations between 2000 and 2011. Obesity, high blood pressure, high triglycerides, low high-density lipoprotein (HDL) cholesterol and high fasting blood sugar were defined as metabolic factors, and CKD was defined as renal dysfunction (estimated glomerular filtration rate: <60 mL/min/1.73 m(2)) or proteinuria (dipstick test: ≥1+). The association between the clustering of metabolic factors and CKD was assessed based on the presence or absence of obesity using a Cox proportional hazard model. RESULTS Of 2,867 subjects with ≥3 metabolic factors, 650 (22.7%) were non-obese. These individuals were older and had higher metabolic risks than their obese counterparts at baseline. Among the entire cohort of 23,894 subjects, 1,764 developed renal dysfunction and 904 developed proteinuria during an average follow-up period of 7.8 years. The cumulative incidence of renal dysfunction was higher (22.1% vs. 16.1%), whereas that of proteinuria was lower (10.5% vs. 14.4%), among the non-obese subjects with ≥3 metabolic factors than the obese subjects with ≥3 metabolic factors after 11 years. The adjusted relative risk (RR) (95% confidence interval) of renal dysfunction was 1.54 (1.34-1.77) and 1.67 (1.35-2.07) for the obese and non-obese subjects with ≥3 metabolic factors, respectively. CONCLUSION Non-obese subjects with ≥3 metabolic factors, who are missed based on the essential criterion of obesity for metabolic syndrome, may have an equal or slightly higher risk of renal dysfunction than obese subjects with ≥3 metabolic factors.
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Affiliation(s)
- Kunihito Nishikawa
- Center of Medical Check-up, Shinko Hospital, Shinkokai; Department of Environmental Epidemiology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan
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Yamada Y, Noborisaka Y, Ishizaki M, Yamazaki M, Honda R, Yokoyama H, Kakuma T. Different association of cigarette smoking with GFR estimated from serum creatinine and that from serum cystatin C in the general population. Clin Exp Nephrol 2014; 19:669-77. [DOI: 10.1007/s10157-014-1058-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 11/08/2014] [Indexed: 11/29/2022]
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50
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Chen JY, Tsai YW, Chen SY, Ho CI, Weng YM, Hsiao CT, Li WC. The association of leptin and homocysteine with renal function impairment in a population of Taiwanese adults. Clin Nutr 2014; 34:943-50. [PMID: 25453393 DOI: 10.1016/j.clnu.2014.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 09/08/2014] [Accepted: 10/01/2014] [Indexed: 11/18/2022]
Abstract
BACKGROUND & AIMS Higher levels of leptin and homocysteine (Hcy) have been evaluated as risk factors of chronic kidney disease in patients and general population. The aim of this study was to examine gender differences in the associations of leptin and Hcy levels and renal function a representative healthy young population in Taiwan. METHODS The participants aged ≥18 years who underwent health examinations were included and categorized into three groups by gender-specific tertiles of leptin and Hcy levels. Estimated glomerular filtration rates (eGFR) were estimated according to the modified equation of Modification of Diet in Renal Disease (MDRD). RESULTS A higher mean Hcy level was found in male subjects than females. Mean values of metabolic syndrome risk factors significantly elevated with increasing leptin levels in both genders. Both male and female subjects with higher plasma Hcy levels were more likely to have a lower eGFR. Plasma Hcy levels were significantly negatively correlated with eGFR in linear regression models adjusted for age and smoking. The associations persisted even after mean arterial pressure and fasting plasma glucose were included for adjustments both genders. Plasma Hcy level was negatively associated eGFR and the association was more profound for females. CONCLUSIONS Leptin levels did not reveal strong or consistent evidence to support a significant association with eGFR. Hcy had a more decisive effect on renal function impairment than leptin and may be considered a more sensitive biomarker for Taiwanese adults.
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Affiliation(s)
- Jau-Yuan Chen
- Department of Family Medicine, Chang Gung Memorial Hospital at Linkou, Taiwan
| | - Yi-Wen Tsai
- Department of Family Medicine, Chang Gung Memorial Hospital at Linkou, Taiwan
| | - Shou-Yen Chen
- Department of Emergency Medicine, Chang Gung Memorial Hospital at Linkou, Taiwan
| | - Chih-I Ho
- Department of Family Medicine, Chang Gung Memorial Hospital at Linkou, Taiwan
| | - Yi-Ming Weng
- Department of Emergency Medicine, Chang Gung Memorial Hospital at Linkou, Taiwan
| | - Cheng-Ting Hsiao
- Department of Emergency Medicine, Chang Gung Memorial Hospital at Chiayi, Taiwan; Chang Gung Institute of Technology, Chiayi Branch, Taiwan
| | - Wen-Cheng Li
- Department of Occupation Medicine, Chang-Gung Memorial Hospital at Chiayi, Taiwan.
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