Original Article

Digestive Diseases and Sciences

, Volume 54, Issue 10, pp 2161-2166

First online:

Ghrelin and Obestatin Levels in Type 2 Diabetic Patients With and Without Delayed Gastric Emptying

  • Igor A. HarschAffiliated withDepartment of Medicine 1, Division of Endocrinology and Metabolism, Friedrich-Alexander University Erlangen-Nuremberg Email author 
  • , Corinna KoebnickAffiliated withDepartment of Research and Evaluation, Southern California Permanente Medical Group
  • , Atingwa M. TasiAffiliated withDepartment of Surgery, Klinikum Lippe-Detmold
  • , Eckhart Georg HahnAffiliated withDepartment of Medicine 1, Friedrich-Alexander University Erlangen-Nuremberg
  • , Peter C. KonturekAffiliated withDepartment of Medicine 1, Friedrich-Alexander University Erlangen-Nuremberg

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Alterations in the neurohumoral regulation of the upper intestine may change rhythmicity and pattern of ghrelin and obestatin, the latter presumably antagonizing ghrelin effects. Five nongastroparetic diabetic patients and five with gastroparesis were investigated. Over 390 min including breakfast and lunch, ghrelin was significantly lower in patients with gastroparesis compared with in those without (P = 0.015). Ghrelin subsequent to lunch decreased significantly (P = 0.011) in patients without gastroparesis, but not in gastroparetic patients (P = 0.669). Obestatin was similar in both groups and unchanged. No significant differences in ghrelin-to-obestatin ratio were observed (P = 0.530). Loss of rhythmicity in the ghrelin levels of gastroparetic diabetics highlights the importance of integrity of the neurohumoral-intestinal axis. Stable diurnal obestatin levels do not support the concept of interaction between ghrelin and obestatin in terms of regulation of food intake and gastric emptying.


Ghrelin Obestatin Diabetes mellitus Gastroparesis