Association of Urinary Albumin Excretion with Insulin Resistance in Japanese Subjects: Impact of Gender Difference on Insulin Resistance
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概要
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Objective To investigate the relationship between homeostasis model assessment for insulin resistance (HOMA-R) and urinary albumin excretion in Japanese and clarify gender difference in albuminuria-related insulin resistance. Methods The subject group consisted of 752 Japanese who had no history of diabetes, hypertension or dyslipidemia. After anthropometric examination, fasting blood samples were obtained to determine plasma glucose (FPG), lipids and HOMA-R. The urinary excretion of albumin in the first void urine was expressed as the creatinine ratio (ACR, mg/gCr). Estimated glomerular filtration rate (eGFR) was calculated from serum creatinine using the formula for Japanese. Results HOMA-R showed a significant correlation with ACR, and the correlation between HOMA-R and ACR was evident in the subjects with central obesity, whereas no significant correlation was found in the non-obese subjects. There was no correlation between HOMA-R and eGFR. HOMA-R increased according to the quintile of ACR and followed a significant trend. This association was obvious in males; however, in females there was no significant trend. Multiple regression analysis revealed that HOMA-R showed a significant correlation with age, waist circumference, blood pressure and serum triglyceride. In addition, ACR exhibited an independent association with HOMA-R. The association of HOMA-R and ACR was observed only in males, and was not present in females. Conclusion Microalbuminuria is associated with insulin resistance in Japanese, where central obesity might play an essential role. This association is gender-specific suggesting the involvement of sex hormones in the pathogenesis of albuminuria-related insulin resistance.
著者
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Utsunomiya Kazunori
Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei Universit
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Takamatsu Keita
Nomura Hospital Center of Preventive Medicine
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Fukuta Isao
ARKRAY, Inc.
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Sakamoto Hisashi
ARKRAY, Inc.
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Ishizawa Sho
Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei Universit
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Kanazawa Yasushi
Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei Universit
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Gojo Atsushi
Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei Universit
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Taniguchi Kanta
Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei Universit
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Yokota Tamotsu
Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei Universit
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Kurata Hideaki
Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei Universit
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Nomura Kouji
Nomura Hospital Center of Preventive Medicine
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Tajima Naoko
Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei Universit
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Gojo Atsushi
Division Of Diabetes Metabolism And Endocrinology Department Of Internal Medicine Jikei University S
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Ishizawa Sho
Division Of Diabetes Metabolism And Endocrinology Department Of Internal Medicine Jikei University S
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Yokota Tamotsu
Division Of Diabetes Metabolism And Endocrinology Department Of Internal Medicine Jikei University S
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Taniguchi Kanta
Division Of Diabetes And Endocrinology Department Of Internal Medicine Jikei University School Of Me
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Kanazawa Yasushi
Division Of Diabetes Metabolism And Endocrinology Department Of Internal Medicine Jikei University S
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Tajima Naoko
Division Of Diabeters Metabolism And Endocrinology Department Of Internal Medicine Jikei University
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Kurata Hideaki
Division Of Diabetes And Endocrinology Department Of Internal Medicine Jikei University School Of Me
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Utsunomiya Kazunori
Division of Diabetes and Endocrinology, Department of Medicine, Jikei University School of Medicine, Japan
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