Blar i NTNU Open på forfatter "Johannessen, Helene"
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Mechanistic Comparison between Gastric Bypass vs. Duodenal Switch with Sleeve Gastrectomy in Rat Models
Kodama, Yosuke; Johannessen, Helene; Furnes, Marianne Waldum; Zhao, Chun-Mei; Johnsen, Gjermund; Mårvik, Ronald; Kulseng, Bård; Chen, Duan (Journal article; Peer reviewed, 2013)Background: Both gastric bypass (GB) and duodenal switch with sleeve gastrectomy (DS) have been widely used as bariatric surgeries, and DS appears to be superior to GB. The aim of this study was to better understand the ... -
PYY-Dependent Restoration of Impaired Insulin and Glucagon Secretion in Type 2 Diabetes following Roux-En-Y Gastric Bypass Surgery
Ramracheya, Reshma D.; McCulloch, Laura J.; Clark, Anne; Wiggins, David; Johannessen, Helene; Olsen, Magnus Kringstad; Cai, Xing; Zhao, Chun-Mei; Chen, Duan; Rorsman, Patrik (Journal article; Peer reviewed, 2016)Roux-en-Y gastric bypass (RYGB) is a weight-reduction procedure resulting in rapid resolution of type 2 diabetes (T2D). The role of pancreatic islet function in this restoration of normoglycemia has not been fully elucidated. ... -
Translational Research in Obesity: Animal Models of Bariatric Surgery and the Underlying Mechanisms
Johannessen, Helene (Doktoravhandlinger ved NTNU, 1503-8181; 2014:232, Doctoral thesis, 2014)Background/Aims: The number of obese individuals is increasing rapidly, leading to a global obesity epidemic. Only bariatric surgery has demonstrated long-term therapeutic effects, and the use of these procedures is ...