1
|
Tamai T, Kamijo K, Abe Y, Hibino S, Sakurai S, Watanabe S, Watanabe Y, Nimura S, Shiratori A, Takayanagi T, Watanabe T, Nakano Y, Ikeda H, Dobashi K, Nakano Y, Mizuno K, Itabashi K. Distribution of serum adiponectin isoforms in pediatric patients with steroid-sensitive nephrotic syndrome. Clin Exp Nephrol 2021; 25:1027-1034. [PMID: 34061287 PMCID: PMC8357647 DOI: 10.1007/s10157-021-02085-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 05/25/2021] [Indexed: 10/28/2022]
Abstract
BACKGROUND Serum adiponectin circulates in three multimeric isoforms: high-molecular-weight (HMW), middle-molecular-weight (MMW), and low-molecular-weight (LMW) isoforms. Potential change in the circulating adiponectin levels in patients with nephrotic syndrome (NS) remain unknown. This study aimed to assess the levels of total adiponectin and the distribution of its isoforms in pediatric patients with NS. METHODS We sequentially measured total adiponectin and each adiponectin isoform levels at the onset of NS, initial remission, and during the remission period of the disease in 31 NS patients. We also calculated the ratios of HMW (%HMW), MMW (%MMW), and LMW (%LMW) to total adiponectin incuding 51 control subjects. RESULTS The median of total serum adiponectin levels in patients were 36.7, 36.7, and 20.2 μg/mL at the onset, at initial remission, and during the remission period of NS, respectively. These values were significantly higher than those in control subjects. The median values of %HMW, %MMW, and %LMW values were 56.9/27.0/14.1 at the onset, 62.0/21.8/13.4 at the initial remission, and 58.1/21.7/17.5 at during the remission period of NS, respectively. Compared with control subjects, %HMW at initial remission and %MMW at the onset were high, and the %LMW values at the onset and at initial remission were low. CONCLUSIONS In patients with NS, total serum adiponectin levels increase at the onset of the disease, and the ratio of adiponectin isoforms changes during the course of the disease. Further studies are needed to delineate the mechanisms between proteinuria and adiponectin isoforms change.
Collapse
Affiliation(s)
- Tetsuro Tamai
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| | - Kaori Kamijo
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| | - Yoshifusa Abe
- Children's Medical Center, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu, Koto-ku, Tokyo, 135-8577, Japan.
| | - Satoshi Hibino
- Department of Pediatric Nephrology, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Shunsuke Sakurai
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| | | | - Yoshitaka Watanabe
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| | - Satomi Nimura
- Department of Hospital Pharmaceutics, School of Pharmacy, Showa University, Tokyo, Japan
| | - Atsutoshi Shiratori
- Department of Pediatric Nephrology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan
| | - Takaaki Takayanagi
- Department of Pediatrics, Tokyo Metropolitan Health and Medical Treatment Corporation Ebara Hospital, Tokyo, Japan
| | - Tsuneki Watanabe
- Children's Medical Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Yuya Nakano
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| | - Hirokazu Ikeda
- Department of Pediatrics, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | | | - Yasuko Nakano
- Drug Treatment Laboratory, Clinical Department, Yokohama University of Pharmacy, Kanagawa, Japan
| | - Katsumi Mizuno
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| | - Kazuo Itabashi
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| |
Collapse
|