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Erschienen in: Obesity Surgery 10/2009

01.10.2009 | Research Article

Ghrelin and Apolipoprotein AIV Levels Show Opposite Trends to Leptin Levels During Weight Loss in Morbidly Obese Patients

verfasst von: E. Pardina, M. D. López-Tejero, R. Llamas, R. Catalán, R. Galard, H. Allende, V. Vargas, A. Lecube, J. M. Fort, J. A. Baena-Fustegueras, J. Peinado-Onsurbe

Erschienen in: Obesity Surgery | Ausgabe 10/2009

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Abstract

Background

Although bariatric surgery is the most common procedure used to induce weight loss in morbidly obese patients, its effect on plasma satiety factors (leptin, ghrelin, and apolipoprotein (apo)-AIV) is controversial. The aim of this work was to analyze these parameters before and at different times after surgery.

Methods

Plasma was obtained from 34 patients before undergoing Roux-en-Y gastric bypass and during weight loss in the 12 months following surgery.

Results

Morbidly obese patients had significantly higher values (147%) of leptin than normal-weight (NW) persons, while their ghrelin levels were 46% less than NW. Apo-AIV levels had approximately the same value in both groups (obese and NW). During weight loss, leptin decreased by 75% and ghrelin increased by 78%. Both parameters reached values less than or near NW, respectively, at 1 year after surgery. During the first month after surgery, apo-AIV plasma levels decreased (47%) but later increased and finally returned to preoperative values. Apo-AIV levels were correlated negatively with leptin and positively with ghrelin. High-density lipoprotein (HDL) levels were positively correlated with those of ghrelin and apo-AIV.

Conclusions

During weight loss, plasma leptin and ghrelin could be good markers of total fat decrease. Ghrelin could also indicate gastric mucous improvement, whereas apo-AIV could indicate the recovery of intestinal function. Changes produced in the HDL levels of morbidly obese patients during weight loss suggest a decreased risk of coronary disease.
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Metadaten
Titel
Ghrelin and Apolipoprotein AIV Levels Show Opposite Trends to Leptin Levels During Weight Loss in Morbidly Obese Patients
verfasst von
E. Pardina
M. D. López-Tejero
R. Llamas
R. Catalán
R. Galard
H. Allende
V. Vargas
A. Lecube
J. M. Fort
J. A. Baena-Fustegueras
J. Peinado-Onsurbe
Publikationsdatum
01.10.2009
Verlag
Springer New York
Erschienen in
Obesity Surgery / Ausgabe 10/2009
Print ISSN: 0960-8923
Elektronische ISSN: 1708-0428
DOI
https://doi.org/10.1007/s11695-008-9793-3

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