Apelin, orexin-A and leptin plasma levels in morbid obesity and effect of gastric banding
| Autor: | Karl-Heinz Herzig, Pekka Miettinen, Esko Alhava, Karl E.O. Åkerman, Matti Pääkkönen, Elina Pirinen, Anna-Kaisa Purhonen, M.V. Heinonen |
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| Rok vydání: | 2005 |
| Předmět: |
Adult
Leptin Male medicine.medical_specialty Time Factors Gastroplasty Physiology Clinical Biochemistry Adipokine Enzyme-Linked Immunosorbent Assay Biochemistry Body Mass Index Cellular and Molecular Neuroscience Basal (phylogenetics) Orexin-A Endocrinology Weight loss Internal medicine Weight Loss medicine Humans Orexins business.industry Stomach Neuropeptides digestive oral and skin physiology Intracellular Signaling Peptides and Proteins Middle Aged medicine.disease Obesity Obesity Morbid Apelin Gastrointestinal Tract medicine.anatomical_structure Gastric Mucosa Intercellular Signaling Peptides and Proteins Female medicine.symptom Carrier Proteins business |
| Zdroj: | Regulatory Peptides. 130:7-13 |
| ISSN: | 0167-0115 |
| Popis: | Maintenance of human energy homeostasis is regulated by a complex network. Peptides secreted from the gastrointestinal tract (GI) are signaling to the brain and other organs initiating or terminating food intake and energy expenditure. In the present study we investigated basal plasma levels of apelin, orexin-A, and leptin in morbid obese patients. In addition, we measured in a subgroup of these patients in the same individual orexin-A and leptin plasma levels one year after gastric banding surgery.Basal plasma values were determined in obese patients (BMI=48+/-1 kg/m2n=32) after an overnight fast and compared to healthy, normal weighted (BMI=22+/-2 kg/m2n=12) controls. In addition, blood samples were collected in a subgroup of patients (BMI=48+/-1 kg/m2n=8) the day before surgery and 1 year after the operation. Apelin, orexin-A, and leptin levels were analysed using ELISAs.One year after the operation obese patients significantly lost weight (from 48+/-2 kg/m2 to 39+/-2 kg/m2; p0,001). Apelin, orexin-A and leptin levels in obese patients were significantly higher compared to control individuals (736+/-50 pg/ml vs. 174+/-14 pg/ml, p0.0001; 75.3+/-24.1 pg/ml vs. 0.8+/-0.4 pg/ml, p0.0001; 79.0+/-2.4 ng/ml vs. 5.8+/-0.8 ng/ml, p0.0001, respectively). Apelin and leptin plasma concentrations also correlated significantly with BMI (r=0.769, p0.0001; r=0.778; p0.0001, respectively), while orexin-A correlation was rather weak (r=0.335, p0.03). No difference between pre- and post-operative orexin-A levels was observed, while leptin plasma levels significantly decreased from 45.1+/-5.4 ng/ml to 27.3+/-6.0 ng/ml (p=0.015).Apelin, orexin-A, and leptin plasma levels correlated positively with the BMI. One year after gastric banding with significant loss in BMI basal plasma levels of leptin decreased, while orexin-A remained unchanged. |
| Databáze: | OpenAIRE |
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