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- F Lönnqvist, L Nordfors, and M Schalling.
- Karolinska Institute at the Department of Medicine, Huddinge University Hospital, Sweden. fredrik.a.lonnqvist@sb.com
- J. Intern. Med. 1999 Jun 1; 245 (6): 643-52.
AbstractGenetic studies in inbred obese mice have revealed the ob gene, its product leptin and the leptin receptor as important factors in the regulation of both appetite and energy expenditure. Treatment with recombinant leptin has resulted in a marked weight reduction in obese animals with ob gene mutations as well as in normal mice. Also mutations in the Ob receptor gene result in marked obesity in rodents. These data have given hope of new treatment options in obesity. Further support of leptin being involved in regulation of obesity in man comes from the observation that inactivating mutations in the human ob gene lead to profound early onset obesity. However, the role of leptin and its feedback system in man is still only partly revealed. This review focuses on our present knowledge and hypotheses about the leptin pathway in humans and its potential importance in the clinic of obesity.
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