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Chinese Journal of Obesity and Metabolic Diseases(Electronic Edition) ›› 2020, Vol. 06 ›› Issue (04): 227-232. doi: 10.3877/cma.j.issn.2095-9605.2020.04.004

Special Issue:

• Article • Previous Articles     Next Articles

Short-term effect of sleeve gastrectomy on serum asprosin level in obese patients.

Ying Li1, Zhenzhen Fu2, Hongwen Zhou2, Hui Liang3, Wei Guan3,()   

  1. 1. Department of Endocrinology, Northern Jiangsu People’s Hospital, Yangzhou 225001; Department of Endocrinology and Metabolism, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
    2. Department of Endocrinology and Metabolism, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
    3. Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
  • Received:2020-04-29 Online:2020-11-30 Published:2020-11-30
  • Contact: Wei Guan
  • About author:
    Corresponding author: Guan Wei, Email:

Abstract:

Objective

To investigate the short-term effect of laparoscopic sleeve gastrectomy (LSG) on serum asprosin level in obesity, and to analyze the correlation with clinical outcomes.

Methods

20 adults with obesity (BMI>35 kg/m2) receiving LSG at Department of Bariatric and Metabolic Surgery, The First Affiliated Hospital with Nanjing Medical University were included to this study between Nov 2017 and Oct 2018. Clinical measurements and laboratory determinations were performed before surgery and 3 months after surgery. The body composition indexes were measured by inbody770 and the biochemical indexes were measured by automatic biochemical analyzer. Homeostasis model assessment of insulin resistance index (HOMA-IR) was calculated. Fasting serum asprosin was analyzed by ELISA.

Results

3 months after LSG, mean total body weight decreased from (105.37±17.79) kg at baseline to (90.13±16.13) kg (P<0.001). The subjects showed a marked weight loss accompanied by significantly lower BMI values (pre, 37.85±4.64 kg/m2, vs. post, 32.31±4.10 kg/m2, P<0.001) after LSG. Meanwhile, insulin resistance improved remarkably after LSG as displayed by reductions in HOMA-IR levels (pre, 8.44±5.24 vs. post, 3.17±1.44, P<0.001). Serum fasting asprosin levels markedly reduced from 347.33 (267.25, 451.18) pg/mL to 254.95 (233.94, 311.88) pg/ml at 3 month after LSG (P<0.01). Multivariate analyses showed that the fasting serum asprosin was positively correlated with HOMA-IR (r=0.564, P=0.01) before LSG. Moreover, when assessing 3-months postoperative changes, a positive correlation was found between the variation of asprosin and the reduction of HOMA-IR (r=0.517, P=0.019). However, there was no association between asprosin and the changes of body weight, BMI, fasting glucose and blood lipids in our study.

Conclusions

Fasting serum asprosin in obesity was closely related to insulin resistance before surgery and reduced significantly in the short term after LSG. Moreover, the early change of asprosin was strongly associated with the improvement of insulin resistance. Asprosin may play an important role in insulin resistance, obesity and diabetes.

Key words: Obesity, Asprosin, Insulin resistance, Bariatric surgery, Sleeve gastrectomy

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