Abstract
Background
The role of obesity as a determinant of kidney dysfunction has not reached an agreement and the underlying reason may be due to the heterogeneity of obese phenotypes. The aim of the study was to explore the associations of different obese phenotypes with the change of estimated glomerular filtration rate (eGFR) and the roles of obesity and metabolic abnormalities in this association.
Methods
eGFR was calculated in 8,586 participants (≥40 years old). eGFR 60–90 mL/min/1.73 m2 was defined as the mildly reduced eGFR. Multiple logistic regression analysis was used to determine odds ratios (ORs) for mildly reduced eGFR in the metabolically healthy obese (MHO), metabolically abnormal non-obese (MANO) and metabolically abnormal obese (MAO) groups, using the metabolically healthy non-obese (MHNO) subjects as the reference group. Meanwhile, the associations of body mass index (BMI), waist circumference (WC) and metabolic abnormalities (including hypertension, hyperglycemia and dyslipidemia) with the risk of mildly reduced eGFR were also investigated.
Results
The proportion of MHNO, MHO, MANO and MAO subjects was 8.3, 17.1, 10.1 and 64.5 %, respectively. Increased ORs were observed in MANO (OR 1.51, P = 0.014) and MAO (OR 1.47, P = 0.015) groups, after adjusting for age, gender, smoking, drinking, BMI and WC. When further adjusting for metabolic abnormalities, MANO (OR 1.24, P = 0.247) and MAO (OR 1.17, P = 0.366) subjects would not present increased risk of mildly reduced eGFR any more. Oppositely, fasting insulin (OR 1.03, P < 0.001), hyperglycemia (OR 1.25, P = 0.002) and dyslipidemia (OR 1.25, P = 0.002), but not hypertension, BMI and WC, significantly increased the risk of mildly reduced eGFR.
Conclusions
Metabolic abnormalities, but not simple obesity, may contribute to the mildly reduced eGFR in middle-aged and elderly Chinese.
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References
Tomonaga Y, Risch L, Szucs TD, Ambuehl PM (2013) The prevalence of chronic kidney disease in a primary care setting: a swiss cross-sectional study. PLoS ONE 8:e67848
Zhang L, Wang F, Wang L et al (2012) Prevalence of chronic kidney disease in China: a cross-sectional survey. Lancet 379:815–822
Chen YC, Su YC, Lee CC, Huang YS, Hwang SJ (2012) Chronic kidney disease itself is a causal risk factor for stroke beyond traditional cardiovascular risk factors: a nationwide cohort study in Taiwan. PLoS ONE 7:e36332
Hallan SI, Matsushita K, Sang Y et al (2012) Age and association of kidney measures with mortality and end-stage renal disease. JAMA 308:2349–2360
Gansevoort RT, Correa-Rotter R, Hemmelgarn BR et al (2013) Chronic kidney disease and cardiovascular risk: epidemiology, mechanisms, and prevention. Lancet 382:339–352
Hermans MM, Henry R, Dekker JM et al (2007) Estimated glomerular filtration rate and urinary albumin excretion are independently associated with greater arterial stiffness: the Hoorn Study. J Am Soc Nephrol 18:1942–1952
Henry RM, Kostense PJ, Bos G et al (2002) Mild renal insufficiency is associated with increased cardiovascular mortality: the Hoorn Study. Kidney Int 62:1402–1407
Roy SK, Cespedes A, Li D, Choi TY, Budoff MJ (2011) Mild and moderate pre-dialysis chronic kidney disease is associated with increased coronary artery calcium. Vasc Health Risk Manag 7:719–724
Natali A, Boldrini B, Baldi S et al (2013) Impact of mild to moderate reductions of glomerular filtration rate on coronary artery disease severity. Nutr Metab Cardiovasc Dis. doi:10.1016/j.numecd.2013.12.005
White SL, Cass A, Atkins RC, Chadban SJ (2005) Chronic kidney disease in the general population. Adv Chronic Kidney Dis 12:5–13
Ejerblad E, Fored CM, Lindblad P, Fryzek J, McLaughlin JK, Nyrén O (2006) Obesity and risk for chronic renal failure. J Am Soc Nephrol 17:1695–1702
Chen S, Liu H, Liu X et al (2013) Central obesity, C-reactive protein and chronic kidney disease: a community-based cross-sectional study in southern china. Kidney Blood Press Res 37:392–401
Stępień M, Stępień A, Wlazeł RN et al (2013) Obesity indices and adipokines in non-diabetic obese patients with early stages of chronic kidney disease. Med Sci Monit 19:1063–1072
Onat A, Hergenç G, Uyarel H et al (2007) Association between mild renal dysfunction and insulin resistance or metabolic syndrome in a random nondiabetic population sample. Kidney Blood Press Res 30:88–96
Ji B, Zhang S, Gong L et al (2013) The risk factors of mild decline in estimated glomerular filtration rate in a community-based population. Clin Biochem 46:750–754
Griffin KA, Kramer H, Bidani AK (2008) Adverse renal consequences of obesity. Am J Physiol Renal Physiol 294:F685–F696
McLaughlin T, Abbasi F, Lamendola C, Reaven G (2007) Heterogeneity in the prevalence of risk factors for cardiovascular disease and type 2 diabetes mellitus in obese individuals: effect of differences in insulin sensitivity. Arch Intern Med 167:642–648
Phillips CM (2013) Metabolically healthy obesity: definitions, determinants and clinical implications. Rev Endocr Metab Disord 14:219–227
Ning G; Reaction Study Group (2012) Risk evaluation of cancers in Chinese diabetic individuals: a longitudinal (reaction) study. J Diabetes 4:172–173
Levey AS, Stevens LA, Schmid CH et al (2009) A new equation to estimate glomerular filtration rate. Ann Intern Med 150:604–612
Sung KC, Cha SC, Sung JW, So MS, Byrne CD (2014) Metabolically healthy obese subjects are at risk of fatty liver but not of pre-clinical atherosclerosis. Nutr Metab Cardiovasc Dis 24:256–262
Expert Panel on Metabolic Syndrome of Chinese Diabetes Society (2004) Recommendations on metabolic syndrome of Chinese diabetes society. Chin J Diab 12:156–161
Ruderman NB, Schneider SH, Berchtold P (1981) The “metabolically-obese,” normal-weight individual. Am J Clin Nutr 34:1617–1621
Sesti G, Succurro E, Arturi F et al (2011) IGF-1 levels link estimated glomerular filtration rate to insulin resistance in obesity: a study in obese, but metabolically healthy, subjects and obese, insulin-resistant subjects. Nutr Metab Cardiovasc Dis 21:933–940
Pyram R, Kansara A, Banerji MA, Loney-Hutchinson L (2012) Chronic kidney disease and diabetes. Maturitas 71:94–103
Chen W, Wang H, Dong X et al (2009) Prevalence and risk factors associated with chronic kidney disease in an adult population from southern China. Nephrol Dial Transplant 24:1205–1212
Collins AJ, Foley RN, Herzog C et al (2011) US renal data system 2010 annual data report. Am J Kidney Dis 57(A8):e1–e526
Palatini P, Dorigatti F, Saladini F et al (2012) Factors associated with glomerular hyperfiltration in the early stage of hypertension. Am J Hypertens 25:1011–1016
Jessani S, Levey AS, Bux R et al (2014) Estimation of GFR in South Asians: a study from the general population in Pakistan. Am J Kidney Dis 63:49–58
Acknowledgments
This study was supported by grants from the Chinese Society of Endocrinology, the National Natural Science Foundation of China (No. 81100617), the Medical and Health Science and Technology Development Projects of Shandong Province (2011HD005), the National Science and Technology Support Plan (2009BAI80B04), the Natural Science Foundation of Shandong Province (ZR2012HM014), the International Science and Technology Projects of Shandong Province (2012GGE27126), the Business Plan of Jinan Students Studying Abroad (20110407), the Outstanding Young Scientist Research Award Foundation of Shandong Province (2013BSE27128) and the special scientific research fund of clinical medicine of Chinese Medical Association (12030420342).
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The authors declare that they have no conflict of interest.
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Chuan Wang and Kai Liang have contributed equally to this work.
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Wang, C., Liang, K., Zhang, X. et al. Metabolic abnormalities, but not obesity, contribute to the mildly reduced eGFR in middle-aged and elderly Chinese. Int Urol Nephrol 46, 1793–1799 (2014). https://doi.org/10.1007/s11255-014-0797-8
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DOI: https://doi.org/10.1007/s11255-014-0797-8