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  • de la Cour, CharlottaLund University,Lunds universitet,Institutionen för experimentell medicinsk vetenskap,Medicinska fakulteten,Department of Experimental Medical Science,Faculty of Medicine (author)

Ghrelin treatment reverses the reduction in weight gain and body fat in gastrectomised mice.

  • Article/chapterEnglish2005

Publisher, publication year, extent ...

  • BMJ,2005

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  • LIBRIS-ID:oai:gup.ub.gu.se/75205
  • https://gup.ub.gu.se/publication/75205URI
  • https://doi.org/10.1136/gut.2004.058578DOI
  • https://lup.lub.lu.se/record/136002URI

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  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • BACKGROUND AND AIMS: The gastric hormone ghrelin has been reported to stimulate food intake, increase weight gain, and cause obesity but its precise physiological role remains unclear. We investigated the long term effects of gastrectomy evoked ghrelin deficiency and of daily ghrelin injections on daily food intake, body weight, fat mass, lean body mass, and bone mass in mice. METHODS: Ghrelin was given by subcutaneous injections (12 nmol/mouse once daily) for eight weeks to young female mice subjected to gastrectomy or sham operation one week previously. RESULTS: Gastrectomy reduced plasma concentrations of total ghrelin (octanoylated and des-octanoylated) and active (octanoylated) ghrelin by approximately 80%. Immediately after injection of ghrelin, the plasma concentration was supraphysiological and was still elevated 16 hours later. Daily food intake was not affected by either gastrectomy or ghrelin treatment. The effect of ghrelin on meal initiation was not studied. At the end point of the study, mean body weight was 15% lower in gastrectomised mice than in sham operated mice (p<0.001); daily ghrelin injections for eight weeks partially prevented this weight loss. In sham operated mice, ghrelin had no effect on body weight. The weight of fat was reduced in gastrectomised mice (-30%; p<0.01). This effect was reversed by ghrelin, enhancing the weight of fat in sham operated mice also (+20%; p<0.05). Gastrectomy reduced lean body mass (-10%; p<0.01) and bone mass (-20%; p<0.001) compared with sham operated mice. Ghrelin replacement prevented the gastrectomy induced decrease in lean body mass but did not affect bone. In sham operated mice, ghrelin affected neither of these two parameters. CONCLUSIONS: Ghrelin replacement partially reversed the gastrectomy induced reduction in body weight, lean body mass, and body fat but not in bone mass. In sham operated mice, ghrelin only increased fat mass. Our results suggest that ghrelin is mainly concerned with the control of fat metabolism and that ghrelin replacement therapy may alleviate the weight loss associated with gastrectomy.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Lindqvist, AndreasLund University,Lunds universitet,Aptitkontroll,Forskargrupper vid Lunds universitet,Neuroendokrin cellbiologi,Appetite Regulation,Lund University Research Groups,Neuroendocrine Cell Biology(Swepub:lu)medk-alt (author)
  • Egecioglu, Emil,1977Gothenburg University,Göteborgs universitet,Institutionen för fysiologi och farmakologi, Avdelningen för fysiologi,Institute of Physiology and Pharmacology, Dept of Physiology(Swepub:gu)xegeem (author)
  • Tung, Y C L (author)
  • Surve, VikasLund University,Lunds universitet,Kärlfysiologi,Forskargrupper vid Lunds universitet,Vascular Physiology,Lund University Research Groups(Swepub:lu)farm-vsu (author)
  • Ohlsson, Claes,1965Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för internmedicin,Institute of Internal Medicine, Dept of Medicine(Swepub:gu)xohlcl (author)
  • Jansson, John-Olov,1954Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin,Institute of Internal Medicine(Swepub:gu)xjanjo (author)
  • Erlanson-Albertsson, CharlotteLund University,Lunds universitet,Aptitkontroll,Forskargrupper vid Lunds universitet,Appetite Regulation,Lund University Research Groups(Swepub:lu)medk-cea (author)
  • Dickson, Suzanne L.,1966Gothenburg University,Göteborgs universitet,Institutionen för fysiologi och farmakologi, Avdelningen för fysiologi,Institute of Physiology and Pharmacology, Dept of Physiology(Swepub:gu)xdicsu (author)
  • Håkanson, RolfLund University,Lunds universitet,Drug Target Discovery,Forskargrupper vid Lunds universitet,Lund University Research Groups(Swepub:lu)farm-rha (author)
  • Institutionen för experimentell medicinsk vetenskapMedicinska fakulteten (creator_code:org_t)

Related titles

  • In:Gut: BMJ54:7, s. 907-130017-57491468-3288

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