Sex Differences in the Renal Function Decline of Patients with Type 2 Diabetes

Aims. We aimed to investigate the sex differences in the renal function decline among patients with type 2 diabetic mellitus (T2DM), focusing on the differences in the risk factors at early stage of renal dysfunction. Methods. A clinic-based retrospective longitudinal study (follow-up duration: 8.1±...

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Main Authors: Ayami Kajiwara, Ayana Kita, Junji Saruwatari, Hiroko Miyazaki, Yuki Kawata, Kazunori Morita, Kentaro Oniki, Akira Yoshida, Hideaki Jinnouchi, Kazuko Nakagawa
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Journal of Diabetes Research
Online Access:http://dx.doi.org/10.1155/2016/4626382
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author Ayami Kajiwara
Ayana Kita
Junji Saruwatari
Hiroko Miyazaki
Yuki Kawata
Kazunori Morita
Kentaro Oniki
Akira Yoshida
Hideaki Jinnouchi
Kazuko Nakagawa
author_facet Ayami Kajiwara
Ayana Kita
Junji Saruwatari
Hiroko Miyazaki
Yuki Kawata
Kazunori Morita
Kentaro Oniki
Akira Yoshida
Hideaki Jinnouchi
Kazuko Nakagawa
author_sort Ayami Kajiwara
collection DOAJ
description Aims. We aimed to investigate the sex differences in the renal function decline among patients with type 2 diabetic mellitus (T2DM), focusing on the differences in the risk factors at early stage of renal dysfunction. Methods. A clinic-based retrospective longitudinal study (follow-up duration: 8.1±1.4 years) was conducted to assess the sex differences in the annual estimated glomerular filtration rate (eGFR) change in 344 (247 male and 97 female) Japanese T2DM patients. The sex differences in the risk factors of annual eGFR decline were subjected to linear regression analyses. Results. The mean annual eGFR change was -3.5±2.7%/year in females and -2.0±2.2%/year in males (P<0.001). Baseline retinopathy and proteinuria were significantly associated with a larger eGFR decline, irrespective of sex, while HbA1c and LDL-cholesterol levels were significantly associated with an eGFR decline in females only. Interactive effects were observed between sex and the HbA1c, LDL-cholesterol, retinopathy, or proteinuria levels on the annual eGFR decline. Conclusions. The increased susceptibility to poor metabolic control seemed to contribute to a higher risk of renal dysfunction in females with T2DM. Our study highlights the importance of aggressive therapeutic intervention to improve metabolic profiles at early stage, especially in females.
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spelling doaj-art-3c02fe2f49dd4a6885cbbad2f6549e2a2025-08-20T02:08:19ZengWileyJournal of Diabetes Research2314-67452314-67532016-01-01201610.1155/2016/46263824626382Sex Differences in the Renal Function Decline of Patients with Type 2 DiabetesAyami Kajiwara0Ayana Kita1Junji Saruwatari2Hiroko Miyazaki3Yuki Kawata4Kazunori Morita5Kentaro Oniki6Akira Yoshida7Hideaki Jinnouchi8Kazuko Nakagawa9Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, JapanDivision of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, JapanDivision of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, JapanDivision of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, JapanDivision of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, JapanDivision of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, JapanDivision of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, JapanJinnouchi Clinic, Diabetes Care Center, 6-2-3 Kuhonji, Chuo-ku, Kumamoto 862-0976, JapanJinnouchi Clinic, Diabetes Care Center, 6-2-3 Kuhonji, Chuo-ku, Kumamoto 862-0976, JapanDivision of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, JapanAims. We aimed to investigate the sex differences in the renal function decline among patients with type 2 diabetic mellitus (T2DM), focusing on the differences in the risk factors at early stage of renal dysfunction. Methods. A clinic-based retrospective longitudinal study (follow-up duration: 8.1±1.4 years) was conducted to assess the sex differences in the annual estimated glomerular filtration rate (eGFR) change in 344 (247 male and 97 female) Japanese T2DM patients. The sex differences in the risk factors of annual eGFR decline were subjected to linear regression analyses. Results. The mean annual eGFR change was -3.5±2.7%/year in females and -2.0±2.2%/year in males (P<0.001). Baseline retinopathy and proteinuria were significantly associated with a larger eGFR decline, irrespective of sex, while HbA1c and LDL-cholesterol levels were significantly associated with an eGFR decline in females only. Interactive effects were observed between sex and the HbA1c, LDL-cholesterol, retinopathy, or proteinuria levels on the annual eGFR decline. Conclusions. The increased susceptibility to poor metabolic control seemed to contribute to a higher risk of renal dysfunction in females with T2DM. Our study highlights the importance of aggressive therapeutic intervention to improve metabolic profiles at early stage, especially in females.http://dx.doi.org/10.1155/2016/4626382
spellingShingle Ayami Kajiwara
Ayana Kita
Junji Saruwatari
Hiroko Miyazaki
Yuki Kawata
Kazunori Morita
Kentaro Oniki
Akira Yoshida
Hideaki Jinnouchi
Kazuko Nakagawa
Sex Differences in the Renal Function Decline of Patients with Type 2 Diabetes
Journal of Diabetes Research
title Sex Differences in the Renal Function Decline of Patients with Type 2 Diabetes
title_full Sex Differences in the Renal Function Decline of Patients with Type 2 Diabetes
title_fullStr Sex Differences in the Renal Function Decline of Patients with Type 2 Diabetes
title_full_unstemmed Sex Differences in the Renal Function Decline of Patients with Type 2 Diabetes
title_short Sex Differences in the Renal Function Decline of Patients with Type 2 Diabetes
title_sort sex differences in the renal function decline of patients with type 2 diabetes
url http://dx.doi.org/10.1155/2016/4626382
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