Cited by 75Growth Hormone and Insulin-like Growth FactorsRegulation of Appetite and ObesityHypothalamic control of reproductive hormones

Leptin Does Not Mediate Short-Term Fasting-Induced Changes in Growth Hormone Pulsatility but Increases IGF-I in Leptin Deficiency States

Open access
Chan, Jean L., Williams, Catherine J., Raciti, Patricia, Blakeman, Jennifer, Kelesidis, Theodore, Kelesidis, Iosif, Johnson, Michael L., Thorner, Michael O. +1 more·2008·The Journal of Clinical Endocrinology & Metabolism

Abstract

Context: States of acute and chronic energy deficit are characterized by increased GH secretion and decreased IGF-I levels. Objective: The objective of the study was to determine whether changes in levels of leptin, a key mediator of the adaptation to starvation, regulate the GH-IGF system during energy deficit. Design, Setting, Patients, and Intervention: We studied 14 healthy normal-weight men and women during three conditions: baseline fed and 72-h fasting (to induce hypoleptinemia) with administration of placebo or recombinant methionyl human leptin (r-metHuLeptin) (to reverse the fasting associated hypoleptinemia). We also studied eight normal-weight women with exercise-induced chronic energy deficit and hypothalamic amenorrhea at baseline and during 2–3 months of r-metHuLeptin treatment. Main Outcome Measures: GH pulsatility, IGF levels, IGF and GH binding protein (GHBP) levels were measured. Results: During short-term energy deficit, measures of GH pulsatility and disorderliness and levels of IGF binding protein (IGFBP)-1 increased, whereas leptin, insulin, IGF-I (total and free), IGFBP-4, IGFBP-6, and GHBP decreased; r-metHuLeptin administration blunted the starvation-associated decrease of IGF-I. In chronic energy deficit, total and free IGF-I, IGFBP-6, and GHBP levels were lower, compared with euleptinemic controls; r-metHuLeptin administration had no major effect on GH pulsatility after 2 wk but increased total IGF-I levels and tended to increase free IGF-I and IGFBP-3 after 1 month. Conclusions: The GH/IGF system changes associated with energy deficit are largely independent of leptin deficiency. During acute energy deficit, r-metHuLeptin administration in replacement doses blunts the starvation-induced decrease of IGF-I, but during chronic energy deficit, r-metHuLeptin administration increases IGF-I and tends to increase free IGF-I and IGFBP-3.

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Crossref · 10.1210/jc.2008-0056

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  • Short-term starvation of mice and humans results in hypoleptinemia and alterations in the reproductive, thyroid, and growth hormone axes.

    “Studies have shown that short-term starvation of mice (11) and humans (12, 21, 22) results in hypoleptinemia and alterations in the reproductive, thyroid, and growth hormone axes, which are normalized with exogenous administration of leptin.”

    From Leptin is an effective treatment for hypothalamic amenorrhea (2011) · cites this paper as [21]

  • Exogenous leptin administration normalizes the starvation-induced alterations in the reproductive, thyroid, and growth hormone axes.

    “Studies have shown that short-term starvation of mice (11) and humans (12, 21, 22) results in hypoleptinemia and alterations in the reproductive, thyroid, and growth hormone axes, which are normalized with exogenous administration of leptin.”

    From Leptin is an effective treatment for hypothalamic amenorrhea (2011) · cites this paper as [21]

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Authors
Chan, J. L., Williams, C. J., Raciti, P., Blakeman, J., Kelesidis, T., Kelesidis, I., Johnson, M. L., Thorner, M. O., & Mantzoros, C. S.
Affiliations
  • Beth Israel Deaconess Medical Center (US)
  • Division of Endocrinology, Diabetes, and Metabolism (J.L.C., C.J.W., P.R., J.B., T.K., I.K., C.S.M.), Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215
  • University of Virginia Health System (US)
Corresponding author
Mantzoros, Christos S.
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2008-07-01
Volume
93
Issue
7
Pages
2819-2827
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W2118769775
Cited by
75
References
43
Citations by year
2026: 3 · 2025: 2 · 2024: 5 · 2023: 3 · 2022: 2 · 2021: 3 · 2020: 1 · 2019: 5 · 2018: 3 · 2017: 5 · 2016: 9 · 2015: 3 · 2014: 6 · 2013: 6 · 2012: 4
FWCI
3.62
Type
journal article
Language
en
Open access
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Beth Israel Deaconess Medical Center
  • Deutsches Krebsforschungszentrum
  • U.S. Public Health Service (R0-158785)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R25DK064122)
  • National Center for Research Resources (M01-RR-01032, M01RR001032, R01RR019991, K23RR018860)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
Keywords
leptin, growth hormone pulsatility, insulin-like growth factor I, negative energy balance, fasting, hypoleptinemia, recombinant human leptin, hypothalamic amenorrhea, IGF binding proteins, GH-binding protein, starvation adaptation
MeSH terms
Adult, Fasting, Female, Humans, Insulin-Like Growth Factor I, Male, Insulin-Like Growth Factor Binding Proteins, Human Growth Hormone, Leptin

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