Effects of growth hormone replacement therapy on glucose and lipid metabolism in patients with hypopituitarism / 中华内分泌代谢杂志

ABSTRACT

Objective:To investigate the effect of growth hormone replacement therapy(GHRT) on glucose and lipid metabolism in patients with hypopituitarism.Methods:Clinical data of patients with hypopituitarism who received GHRT in Department of Endocrine and Metabolic Diseases, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine from December 2016 to February 2020 were retrospectively analyzed. The patients were divided into normal glucose regulation(NGR) group and impaired glucose regulation(IGR) group according to their glucose metabolism status before GHRT. The changes of the characteristics of glucose metabolism before and after GHRT were analyzed.Results:A total of 30 patients aged(23.0±5.2) years were included, 23 patients in NGR group and 7 patients in IGR group. After 12 months of GHRT, there were no significant changes in fasting plasma glucose(FPG), 2-hour postprandial plasma glucose(2hPG), and insulin sensitivity index(ISI) in both groups(all P>0.05), while homeostasis model assessment insulin resistance(HOMA-IR) in IGR group was significantly decreased compared with that before GHRT( P<0.05). None of the patients in NGR group progressed to IGR or diabetes mellitus, and none of the 7 patients in the IGR group progressed to diabetes mellitus, while 4 of them recovered from impaired glucose tolerance(IGT) to NGR. Triglyceride, total cholesterol, and low density lipoprotein-cholesterol levels were all significantly decreased in two groups(all P<0.05). Multivariate linear regression analysis showed that the increase of body mass index was an independent risk factor for the increase of FPG and 2hPG( P<0.05). Conclusion:12-month GHRT significantly improved their blood lipid profiles in patients with hypopituitarism without adversely affecting glucose homeostasis.