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- Title
Bariatric Surgery and Brain Health—A Longitudinal Observational Study Investigating the Effect of Surgery on Cognitive Function and Gray Matter Volume.
- Authors
Prehn, Kristin; Profitlich, Thorge; Rangus, Ida; Heßler, Sebastian; Witte, A. Veronica; Grittner, Ulrike; Ordemann, Jürgen; Flöel, Agnes
- Abstract
Dietary modifications leading to weight loss have been suggested as a means to improve brain health. In morbid obesity, bariatric surgery (BARS)—including different procedures, such as vertical sleeve gastrectomy (VSG), gastric banding (GB), or Roux-en-Y gastric bypass (RYGB) surgery—is performed to induce rapid weight loss. Combining reduced food intake and malabsorption of nutrients, RYGB might be most effective, but requires life-long follow-up treatment. Here, we tested 40 patients before and six months after surgery (BARS group) using a neuropsychological test battery and compared them with a waiting list control group. Subsamples of both groups underwent structural MRI and were examined for differences between surgical procedures. No substantial differences between BARS and control group emerged with regard to cognition. However, larger gray matter volume in fronto-temporal brain areas accompanied by smaller volume in the ventral striatum was seen in the BARS group compared to controls. RYGB patients compared to patients with restrictive treatment alone (VSG/GB) had higher weight loss, but did not benefit more in cognitive outcomes. In sum, the data of our study suggest that BARS might lead to brain structure reorganization at long-term follow-up, while the type of surgical procedure does not differentially modulate cognitive performance.
- Subjects
BRAIN anatomy; COGNITION; LONGITUDINAL method; MAGNETIC resonance imaging; NEUROPSYCHOLOGICAL tests; MENTAL health; PSYCHOLOGY of movement; BARIATRIC surgery; SCIENTIFIC observation; HEALTH outcome assessment; TREATMENT effectiveness; CASE-control method; GRAY matter (Nerve tissue)
- Publication
Nutrients, 2020, Vol 12, Issue 1, p127
- ISSN
2072-6643
- Publication type
Article
- DOI
10.3390/nu12010127