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Relationships of in vivo brain norepinephrine transporter and age, BMI, and gender
SYNAPSE ( IF 1.6 ) Pub Date : 2023-06-29 , DOI: 10.1002/syn.22279
Sheida Koohsari 1 , Faranak Ebrahimian Sadabad 1 , Brian Pittman 2 , Jean-Dominque Gallezot 1 , Richard E Carson 1 , Christopher H van Dyck 2 , Chiang-Shan R Li 2 , Marc N Potenza 2, 3, 4, 5, 6, 7 , David Matuskey 1, 2, 8
Affiliation  

Previous research reported an age-related decline in brain norepinephrine transporter (NET) using (S, S)-[11C]O-methylreboxetine ([11C]MRB) as a radiotracer. Studies with the same tracer have been mixed in regard to differences related to body mass index (BMI). Here, we investigated potential age-, BMI-, and gender-related differences in brain NET availability using [11C]MRB, the most selective available radiotracer. Forty-three healthy participants (20 females, 23 males; age range 18–49 years), including 12 individuals with normal/lean weight, 15 with overweight, and 16 with obesity were scanned with [11C]MRB using a positron emission tomography (PET) high-resolution research tomograph (HRRT). We evaluated binding potential (BPND) in brain regions with high NET availability using multilinear reference tissue model 2 (MRTM2) with the occipital cortex as a reference region. Brain regions were delineated with a defined anatomic template applied to subjects' structural MR scans.

中文翻译:


体内脑去甲肾上腺素转运蛋白与年龄、BMI和性别的关系



先前的研究报道,使用 (S, S)-[11C]O-甲基瑞波西汀 ([11C]MRB) 作为放射性示踪剂,大脑去甲肾上腺素转运蛋白 (NET) 与年龄相关的下降。对于与体重指数 (BMI) 相关的差异,使用相同示踪剂的研究结果参差不齐。在这里,我们使用最具选择性的放射性示踪剂 [11C]MRB 研究了大脑 NET 可用性与年龄、BMI 和性别相关的潜在差异。 43 名健康参与者(20 名女性,23 名男性;年龄范围 18-49 岁),包括 12 名正常/瘦体重的个体、15 名超重者和 16 名肥胖者,使用正电子发射断层扫描对 [11C]MRB 进行了扫描( PET)高分辨率研究断层扫描(HRRT)。我们使用多线性参考组织模型 2 (MRTM2) 以枕叶皮层作为参考区域,评估了具有高 NET 可用性的大脑区域的结合潜力 ( BP ND )。使用应用于受试者结构磁共振扫描的定义的解剖模板来描绘大脑区域。
更新日期:2023-06-29
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