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Sökning: WFRF:(Andersson Thorell K)

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  • Arner, P., et al. (författare)
  • Adipose lipid turnover and long-term changes in body weight
  • 2019
  • Ingår i: Nature Medicine. - : Springer Science and Business Media LLC. - 1078-8956 .- 1546-170X. ; 25:9, s. 1385-1389
  • Tidskriftsartikel (refereegranskat)abstract
    • The worldwide obesity epidemic(1) makes it important to understand how lipid turnover (the capacity to store and remove lipids) regulates adipose tissue mass. Cross-sectional studies have shown that excess body fat is associated with decreased adipose lipid removal rates(2,3). Whether lipid turnover is constant over the life span or changes during long-term weight increase or loss is unknown. We determined the turnover of fat cell lipids in adults followed for up to 16 years, by measuring the incorporation of nuclear bomb test-derived C-14 in adipose tissue triglycerides. Lipid removal rate decreases during aging, with a failure to reciprocally adjust the rate of lipid uptake resulting in weight gain. Substantial weight loss is not driven by changes in lipid removal but by the rate of lipid uptake in adipose tissue. Furthermore, individuals with a low baseline lipid removal rate are more likely to remain weight-stable after weight loss. Therefore, lipid turnover adaptation might be important for maintaining pronounced weight loss. Together these findings identify adipose lipid turnover as an important factor for the long-term development of overweight/obesity and weight loss maintenance in humans.
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  • Thorell, Anders, et al. (författare)
  • Themetabolic response to cholecystectomy; insulin resitance after open vs.laparoscopic surgery
  • 1995
  • Ingår i: European Journal of Surgery. - : Taylor & Francis Scandinavia. - 1102-4151 .- 1741-9271. ; 162:3, s. 187-191
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective. To study the changes in insulin sensitivity and plasma concentrations of interleukin-6 (IL-6) after open compared with laparoscopic cholecystectomy.Design: Prospective open study.Setting: University hospital, Sweden.Subjects: 12 otherwise healthy patients undergoing either open (n = 6) or laparoscopic (n = 6) cholecystectomy.Main outcome measure: Relative insulin sensitivity (compared with preoperative) on the day after operation. Changes in IL-6 concentrations postoperatively.Results. The mean (SEM) relative reduction in insulin sensitivity was significantly smaller after laparoscopic (18 (5)%) compared with the open operation, (58 (4)%) (p < 0.01). There was a significant increase in plasma concentrations of IL-6 postoperatively, but there was no difference between the groups.Conclusion. Insulin sensitivity is less affected 24 hours after laparoscopic than after open cholecystectomy, which in this study was not accompanied by a simultaneous difference in the IL-6 response. The small postoperative reduction of insulin sensitivity may be a contributing factor to the clinical benefit of improved wellbeing observed after laparoscopic surgery.
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  • Resultat 1-9 av 9

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