Lydia L Snyder, Lara C Foland-Ross, Allison Cato, Allan L Reiss, Chetan Shah, Jobayer Hossain, Hussein Elmufti, Nelly Mauras
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引用次数: 3
Abstract
Objective: Both diabetes and obesity can affect the brain, yet their impact is not well characterized in children with type 2 (T2) diabetes and obesity. This pilot study aims to explore differences in brain function and cognition in adolescents with T2 diabetes and obesity and nondiabetic controls with obesity and lean controls.
Research design and methods: Participants were 12-17 years old (5 T2 diabetes with obesity [mean HgbA1C 10.9%], 6 nondiabetic controls with obesity and 10 lean controls). Functional MRI (FMRI) during hyperglycemic/euglycemic clamps was performed in the T2 diabetes group.
Results: When children with obesity, with and without diabetes, were grouped (mean BMI 98.8%), cognitive scores were lower than lean controls (BMI 58.4%) on verbal, full scale, and performance IQ, visual-spatial and executive function tests. Lower scores correlated with adiposity and insulin resistance but not HgbA1C. No significant brain activation differences during task based and resting state FMRI were noted between children with obesity (with or without diabetes) and lean controls, but a notable effect size for the visual-spatial working memory task and resting state was observed.
Conclusions: In conclusion, our pilot study suggests that obesity, insulin resistance, and dysglycemia may contribute to relatively poorer cognitive function in adolescents with T2 diabetes and obesity. Further studies with larger sample size are needed to assess if cognitive decline in children with obesity, with and without T2 diabetes, can be prevented or reversed.
期刊介绍：
Pediatric Diabetes is a bi-monthly journal devoted to disseminating new knowledge relating to the epidemiology, etiology, pathogenesis, management, complications and prevention of diabetes in childhood and adolescence. The aim of the journal is to become the leading vehicle for international dissemination of research and practice relating to diabetes in youth. Papers are considered for publication based on the rigor of scientific approach, novelty, and importance for understanding mechanisms involved in the epidemiology and etiology of this disease, especially its molecular, biochemical and physiological aspects. Work relating to the clinical presentation, course, management and outcome of diabetes, including its physical and emotional sequelae, is considered. In vitro studies using animal or human tissues, whole animal and clinical studies in humans are also considered. The journal reviews full-length papers, preliminary communications with important new information, clinical reports, and reviews of major topics. Invited editorials, commentaries, and perspectives are a regular feature. The editors, based in the USA, Europe, and Australasia, maintain regular communications to assure rapid turnaround time of submitted manuscripts.
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