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| Content Provider | PubMed Central |
|---|---|
| Author | Licinio, Julio Caglayan, Sinan Ozata, Metin Yildiz, Bulent O. Miranda, Patricia B. De Fiona, O'kirwan Whitby, Robert Liang, Liyin Cohen, Pinchas Bhasin, Shalender Krauss, Ronald M. Veldhuis, Johannes D. Wagner, Anthony J. Depaoli, Alex M. Mccann, Samuel M. Wong, Ma-li |
| Copyright Year | 2004 |
| Abstract | Genetic mutations in the leptin pathway can be a cause of human obesity. It is still unknown whether leptin can be effective in the treatment of fully established morbid obesity and its endocrine and metabolic consequences in adults. To test the hypothesis that leptin has a key role in metabolic and endocrine regulation in adults, we examined the effects of human leptin replacement in the only three adults identified to date who have genetically based leptin deficiency. We treated these three morbidly obese homozygous leptin-deficient adult patients with recombinant human leptin at low, physiological replacement doses in the range of 0.01–0.04 mg/kg for 18 months. Patients were hypogonadal, and one of them also had type 2 diabetes mellitus. We chose the doses of recombinant methionyl human leptin that would achieve normal leptin concentrations and administered them daily in the evening to model the normal circadian variation in endogenous leptin. The mean body mass index dropped from 51.2 ± 2.5 (mean ± SEM) at baseline to 26.9 ± 2.1 kg/m2 after 18 months of treatment, mainly because of loss of fat mass. We document here that leptin replacement therapy in leptin-deficient adults with established morbid obesity results in profound weight loss, increased physical activity, changes in endocrine function and metabolism, including resolution of type 2 diabetes mellitus and hypogonadism, and beneficial effects on ingestive and noningestive behavior. These results highlight the role of the leptin pathway in adults with key effects on the regulation of body weight, gonadal function, and behavior. |
| Related Links | http://dx.doi.org/10.1073/pnas.0308767101 |
| Ending Page | 4536 |
| Page Count | 6 |
| Starting Page | 4531 |
| File Format | |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 13 |
| Volume Number | 101 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2004-03-30 |
| Access Restriction | Open |
| Rights Holder | National Academy of Sciences |
| Subject Keyword | General Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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