Ohta Akio, Kato Hiroyuki, Ishii Satoshi, Sasaki Yosuke, Nakamura Yuta, Nakagawa Tomoko, Nagai Yoshio, Tanaka Yasushi
a Department of Internal Medicine, Division of Metabolism and Endocrinology , St. Marianna University School of Medicine , Kawasaki , Japan.
b Division of Metabolism and Endocrinology, Department of Internal Medicine , St. Marianna University School of Medicine , Kawasaki , Japan.
Expert Opin Pharmacother. 2017 Oct;18(14):1433-1438. doi: 10.1080/14656566.2017.1363888. Epub 2017 Aug 11.
We recently investigated the effect of ipragliflozin, a sodium glucose co-transporter-2 inhibitor (SGLT-2I), in Japanese patients with type 2 diabetes by a 24-week. SGLT-2Is also have an anti-obesity effect, and reduction of body fat has been demonstrated by indirect methods. However, evaluation of the effect on the total visceral fat volume and intrahepatic lipid content has not been performed.
We measured the abdominal subcutaneous fat volume (SFV) and visceral fat volume (VFV) by whole abdominal CT scanning, the intrahepatic lipid (IHL) content by proton magnetic resonance spectroscopy (1H-MRS), and the fat mass index (FI) and appendicular skeletal mass index (ASMI) by dual X-ray absorptiometry (DXA) in 20 patients from our previous study.
Administration of ipragliflozin at 50 mg/day for 24 weeks significantly reduced SFV, VFV, and IHL. FI and ASMI were also significantly decreased. Changes of VFV and IHL content at 12 weeks were significantly correlated with the change of HbA1c, but no correlation was observed at 24 weeks.
These findings demonstrate that ipragliflozin decreases visceral and hepatic fat, with improvement of glycemic control possibly being attributable to these changes at least up to 12 weeks.
我们最近通过一项为期24周的研究,调查了钠-葡萄糖协同转运蛋白2抑制剂(SGLT-2I)依帕列净对日本2型糖尿病患者的影响。SGLT-2I也具有抗肥胖作用,并且已通过间接方法证明其可减少体脂。然而,尚未对其对总内脏脂肪体积和肝内脂质含量的影响进行评估。
我们对之前研究中的20名患者进行了全腹CT扫描以测量腹部皮下脂肪体积(SFV)和内脏脂肪体积(VFV),通过质子磁共振波谱(1H-MRS)测量肝内脂质(IHL)含量,并通过双能X线吸收法(DXA)测量脂肪量指数(FI)和四肢骨骼肌质量指数(ASMI)。
每天服用50mg依帕列净,持续24周,可显著降低SFV、VFV和IHL。FI和ASMI也显著降低。12周时VFV和IHL含量的变化与糖化血红蛋白(HbA1c)的变化显著相关,但在24周时未观察到相关性。
这些发现表明,依帕列净可减少内脏和肝脏脂肪,至少在12周内,血糖控制的改善可能归因于这些变化。