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• W4246628395 abstract "ABSTRACT Context Brain-derived neurotrophic factor (BDNF) haploinsufficiency is associated with hyperphagia and obesity in both animals and humans. BDNF appears to function downstream of the leptin-melanocortin signaling pathway to control energy balance. The potential role of BDNF in the etiology of the severe hyperphagia associated with PWS has not been previously explored. Objective The aim was to compare BDNF concentrations in subjects with PWS and obese controls (OC) and lean controls (LC). Design and Setting We conducted a cross-sectional study at an outpatient clinical research center. Participants We studied 13 subjects with PWS [five males and eight females; mean ± sd: age, 11.0 ± 4.1 yr; body mass index (BMI)-Z, 2.05 ± 0.78], 13 OC (eight females, five males; age, 12.3 ± 2.7 yr; BMI-Z, 2.18 ± 0.61), and 13 LC (six females, seven males; age, 12.4 ± 2.6 yr; BMI-Z, −0.57 ± 0.73). Main Outcome Measure BDNF was measured in serum and plasma by ELISA. Analysis of covariance adjusted for age, sex, and BMI-Z. Results All groups were comparable for age (P = 0.50) and sex distribution (P = 0.49). BMI-Z was comparable between PWS and OC (P = 0.89) and lower in LC (P &lt; 0.001). Adjusted serum BDNF was comparable (P = 0.35) in OC (mean ± sem: 13.5 ± 1.2 ng/ml) and LC (19.2 ± 1.3 ng/ml), but lower in PWS (8.3 ± 1.2 ng/ml; P = 0.01 vs. OC; P = 0.03 vs. LC). Adjusted plasma BDNF in PWS (217 ± 130 pg/ml) was lower than OC (422 ± 126 pg/ml; P = 0.02), but statistically comparable with LC (540 ± 143 pg/ml; P = 0.10). Conclusions Lower BDNF in PWS suggests insufficient central BDNF production because BDNF in peripheral circulation is believed to reflect cerebral BDNF output. Decreased BDNF may be a potential cause for the disordered satiety and morbid obesity associated with PWS. Further studies are needed to confirm this preliminary pilot study in a larger cohort of patients with PWS." @default.
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• W4246628395 date "2010-06-01" @default.
• W4246628395 modified "2023-10-17" @default.
• W4246628395 title "Lower Brain-Derived Neurotrophic Factor in Patients with Prader-Willi Syndrome Compared to Obese and Lean Control Subjects" @default.
• W4246628395 doi "https://doi.org/10.1210/edrv.31.3.9981" @default.
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