Secondary Analysis of Gut Hormones and Inflammatory Cytokines in Fasting Subjects

Summary

The original study executed between 2002-2004 was an interventional trial in which 20, healthy, normal-weight female subjects were randomized to a four-day fast plus daily subcutaneous injections of leptin or a four day fast plus daily subcutaneous injections of a placebo. The primary endpoints were gonadotropin pulsatility, TSH secretion and thyroid function, and cortisol secretion. The current study is a secondary analysis focussed on the placebo group which underwent a four-day fast. The study is looking at the effects of fasting on gut-derived hormones and inflammatory markers in healthy, normal-weight women. The hypothesis for this secondary analysis was that four days of fasting would augment levels of orexigenic gut-derived hormones and suppress levels of anorexigenic gut-derived horomones, while suppressing secretion of inflammatory cytokines.

Timeline

Start

2002-11

Primary completion

2003-12

Completion

2003-12

Publications

• Results Canavan B, Salem RO, Schurgin S, Koutkia P, Lipinska I, Laposata M, Grinspoon S. Effects of physiological leptin administration on markers of inflammation, platelet activation, and platelet aggregation during caloric deprivation. J Clin Endocrinol Metab. 2005 Oct;90(10):5779-85. doi: 10.1210/jc.2005-0780. Epub 2005 Aug 2.
• Results Schurgin S, Canavan B, Koutkia P, Depaoli AM, Grinspoon S. Endocrine and metabolic effects of physiologic r-metHuLeptin administration during acute caloric deprivation in normal-weight women. J Clin Endocrinol Metab. 2004 Nov;89(11):5402-9. doi: 10.1210/jc.2004-1102.
• Results Koutkia P, Schurgin S, Berry J, Breu J, Lee BS, Klibanski A, Grinspoon S. Reciprocal changes in endogenous ghrelin and growth hormone during fasting in healthy women. Am J Physiol Endocrinol Metab. 2005 Nov;289(5):E814-22. doi: 10.1152/ajpendo.00093.2005. Epub 2005 Jun 21.

Drugs

Indications

No indication recorded.