Tokgöz Sevilay, Boss Marti, Jansen Theodorus J P, Meijer Rick, Frielink Cathelijne, van Bon Arianne C, Tack Cees J, de Galan Bastiaan E, Gotthardt Martin
Department of Medical Imaging, Radboud University Medical Center, Nijmegen, the Netherlands.
Netherlands Heart Institute, Utrecht, the Netherlands.
Diabetes. 2025 Feb 1;74(2):212-222. doi: 10.2337/db24-0463.
It is unclear why some individuals with type 2 diabetes are unresponsive to treatment with glucagon-like peptide 1 receptor (GLP-1R) agonists, but hypothalamic-pituitary-adrenal (HPA) axis activation could play a role. We used [68Ga]Ga-NODAGA-exendin-4 positron emission tomography/computed tomography to compare pituitary GLP-1R expression between responders and nonresponders to treatment with GLP-1R agonists. Pituitary GLP-1R expression and HPA axis activation did not differ between responders and nonresponders to GLP-1R agonist treatment. In addition, pituitary radiolabeled exendin uptake was markedly higher in men than in women. Further study is required to explain treatment differences and understand sex differences in pituitary radiolabeled exendin uptake.
目前尚不清楚为何有些2型糖尿病患者对胰高血糖素样肽1受体(GLP-1R)激动剂治疗无反应,但下丘脑-垂体-肾上腺(HPA)轴激活可能起了一定作用。我们使用[68Ga]Ga-NODAGA-艾塞那肽4正电子发射断层扫描/计算机断层扫描来比较GLP-1R激动剂治疗的反应者与无反应者之间垂体GLP-1R的表达。GLP-1R激动剂治疗的反应者与无反应者之间,垂体GLP-1R表达和HPA轴激活并无差异。此外,男性垂体放射性标记的艾塞那肽摄取明显高于女性。需要进一步研究来解释治疗差异,并了解垂体放射性标记的艾塞那肽摄取中的性别差异。