Skip to main content
Journal of Assisted Reproduction and Genetics logoLink to Journal of Assisted Reproduction and Genetics
. 2004 Oct;21(10):361–366. doi: 10.1023/B:JARG.0000046204.81682.67

Serum Leptin Elevation in Obese Women with PCOS: A Continuing Controversy

Hisham Ali Saleh 1,2, Mohamed Amr El-Nwaem 3, Magdy Mamdouh El-Bordiny 2, Hala Mohamed El-Sayed Maqlad 3, Amr Ahmed El-Mohandes 3, Ebtehag Mohamed Eldaqaq 3
PMCID: PMC3455233  PMID: 15587140

Abstract

Purpose: To evaluate leptin levels in a sample of obese women with PCOS and compare the results with obese and non-obese control, to be ultimately correlated with BMI, and insulin sensitivity.

Methods: Leptin and insulin assays by immuno-radiometric method, glucose assay by enzymatic colorimetric method.

Results: Leptin levels were significantly different between obese and non-obese subjects, and were significantly different between insulin resistant and non-insulin resistant obese PCOS, but were not significantly different between obese non-insulin resistant PCOS, and obese controls.

Conclusions: Body mass index and insulin resistance are the two main factors governing serum leptin levels.

Keywords: Body mass index, leptin, obesity, polycystic ovary syndrome

Full Text

The Full Text of this article is available as a PDF (60.5 KB).

REFERENCES

  • 1.Zhang Y, Proenca R, Maffei M, et al. Positional cloning of the mouse obese gene and its human homologue. Nature. 1994;372:425–432. doi: 10.1038/372425a0. [DOI] [PubMed] [Google Scholar]
  • 2.Ahima RS, Flier JS. Leptin. Annu Rev Physiol. 2000;62:413–437. doi: 10.1146/annurev.physiol.62.1.413. [DOI] [PubMed] [Google Scholar]
  • 3.Caprio M, Fabbrini E, Isidori AM, et al. Leptin in reproduction. Trends Endocrinol Metab. 2001;12:65–72. doi: 10.1016/s1043-2760(00)00352-0. [DOI] [PubMed] [Google Scholar]
  • 4.Caro JF, Sinha MK, Kolaczynski ZW, et al. Leptin: The tale of an obesity gene. Diabetes. 1996;45:1455–1462. doi: 10.2337/diab.45.11.1455. [DOI] [PubMed] [Google Scholar]
  • 5.Stephens TW, Caro JF. To be lean or not to be lean. Is leptin the answer? Exp Clin Endocrinol Diabetes. 1998;106:1–15. doi: 10.1055/s-0029-1211943. [DOI] [PubMed] [Google Scholar]
  • 6.Kennedy GC, Mitra J. Body weight and food intake as initiating factors for puberty. J Physiol. 1963;166:408–418. doi: 10.1113/jphysiol.1963.sp007112. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 7.Frisch RE. Body fat, puberty, and fertility. Biol Rev. 1984;59:161–188. doi: 10.1111/j.1469-185x.1984.tb00406.x. [DOI] [PubMed] [Google Scholar]
  • 8.Wade GN, Schneider JE, Li HY. Control of fertility by metabolic cues. Am J Physiol. 1996;270:E1. doi: 10.1152/ajpendo.1996.270.1.E1. [DOI] [PubMed] [Google Scholar]
  • 9.Neel JV. Diabetes mellitus: A thrifty genotype rendered detri-mental by progress? Am J Hum Gen. 1962;14:353–362. [PMC free article] [PubMed] [Google Scholar]
  • 10.Fox R. Polycystic ovarian disease and insulin resistance: Patho-physiology and wider health issues. In: Studd J., editor. Progress in Obstetrics and Gynecology. London: Churchill Livingstone; 1997. pp. 351–367. [Google Scholar]
  • 11.Caro JF, Kolaczynski JW, Nyce MR, et al. Decreased cere-brospinal fluid/serum leptin ratio in obesity: A possible mech-anism for leptin resistance. Lancet. 1996;348:159–161. doi: 10.1016/s0140-6736(96)03173-x. [DOI] [PubMed] [Google Scholar]
  • 12.Schwartz MW, Peskind E, Raskind M, et al. Cerebrospinal fluid leptin levels: Relation to plasma levels and to adiposity in humans. Nat Med. 1996;2:589–593. doi: 10.1038/nm0596-589. [DOI] [PubMed] [Google Scholar]
  • 13.Saad MF, Riad-Gabriel MG, Khan A. Diurnal and ultradian rhythmicity of plasma leptin: Effect of gender and adiposity. J Clin Endocrinol Metab. 1998;83:453–459. doi: 10.1210/jcem.83.2.4532. [DOI] [PubMed] [Google Scholar]
  • 14.Norman J, Masters SC, Hague W, et al. Metabolic approaches to the subclassification of polycystic ovary syndrome. Fertil Steril. 1995;63:329–335. [PubMed] [Google Scholar]
  • 15.Louvet JP, Harman SM, Schreiber JR, et al. Evidence for a role of androgens in follicular maturation. Endocrinology. 1975;97:366–372. doi: 10.1210/endo-97-2-366. [DOI] [PubMed] [Google Scholar]
  • 16.Anderson E, Lee GY. The effects of DHEAand its metabolites on the PCO condition: Cytogenetic changes of rat granulosa cells in vitro. Tissue Cell. 1996;28(6):673–685. doi: 10.1016/s0040-8166(96)80071-1. [DOI] [PubMed] [Google Scholar]
  • 17.Fauser BC. Observations in favor of normal early follicular de-velopment and disturbed dominant follicle selection in PCOS. Gynecol Endocrinol. 1994;8:75. doi: 10.3109/09513599409058026. [DOI] [PubMed] [Google Scholar]
  • 18.Lanzone A, Fulghesu AM, Fortini A, et al. Effect of opi-ate receptor blockade on the insulin response to oral glucose load in polycystic ovarian disease. Hum Reprod. 1991;6:1043–1049. doi: 10.1093/oxfordjournals.humrep.a137482. [DOI] [PubMed] [Google Scholar]
  • 19.Hillier SG. Regulatory functions for inhibin and activin in hu-man ovaries. J Endocrinol. 1991;131:171–175. doi: 10.1677/joe.0.1310171. [DOI] [PubMed] [Google Scholar]
  • 20.Mather JP, Moore A, Li RH. Activin, inhibins, and follistatins: Further thoughts on a growing family of regulators. Proc Soc Exp Biol Med. 1997;215:209–222. doi: 10.3181/00379727-215-44130. [DOI] [PubMed] [Google Scholar]
  • 21.Brzechaffa PR, Jakimiuk AJ, Agarwal SK, et al.: Serum im-munoreactive leptin concentrations in women with polycystic ovary syndrome. J Clin Endocrinol Metab 1996;4166-4171 [DOI] [PubMed]
  • 22.Chapman IM, Wiltert JA, Norman RJ. Circulating leptin con-centrations in polycystic ovary syndrome in relation to anthro-pometric and metabolic parameters. Clin Endocrinol. 1997;46:175–179. doi: 10.1046/j.1365-2265.1997.1200936.x. [DOI] [PubMed] [Google Scholar]
  • 23.Rouru J, Antilla L, Koskinen P, et al. Serum leptin con-centrations in women with PCOS. J Clin Endocrinol Metab. 1997;82:1697–1702. doi: 10.1210/jcem.82.6.3996. [DOI] [PubMed] [Google Scholar]
  • 24.Mantzoros CS, Dunaif A, Flier JS. Leptin concentrations in the polycystic ovary syndrome. J Clin Endocrinol Metab. 1997;82:1687–1694. doi: 10.1210/jcem.82.6.4017. [DOI] [PubMed] [Google Scholar]
  • 25.Telli MH, Yildirim M, Noyan V. Serum leptin levels in patients with polycystic ovary syndrome. Fertil Steril. 2002;77:932–935. doi: 10.1016/s0015-0282(02)02995-3. [DOI] [PubMed] [Google Scholar]
  • 26.Conway GS, Jacobs HS, Leptin A hormone of reproduction. Hum Reprod. 1997;12:633–635. doi: 10.1093/humrep/12.4.633. [DOI] [PubMed] [Google Scholar]
  • 27.Remsberg KE, Talbott EO, Zborowski JV, et al. Evidence for competing effects of body mass, hyperinsulinemeia, insulin resistance and androgens on leptin levels among lean, over-weight, and obese women with polycystic ovary syndrome. Fertil Steril. 2002;78:479–486. doi: 10.1016/s0015-0282(02)03303-4. [DOI] [PubMed] [Google Scholar]
  • 28.Stein IF, Leventhal ML. Amenorrhea associated with bilateral polycystic ovaries. Am J Obstet Gynecol. 1935;29:181–187. [Google Scholar]
  • 29.Achard C, Thiers J. Le virilisme pilaire et son association a'l' insuffisance glycolytique (diabete a femmes de barbe) Bull Acad Natl Med. 1921;86:51–66. [Google Scholar]
  • 30.Poretsky L, Kahin MF. The gonadotropic function of insulin. Endocrinol Rev. 1987;8:134–141. doi: 10.1210/edrv-8-2-132. [DOI] [PubMed] [Google Scholar]
  • 31.Moller DE, Flier JS. Detection of an alteration in the insulin receptor gene in a patient with insulin resistance, acanthosis nigricans and the polycystic ovary syndrome. N Eng J Med. 1988;319:1526–1529. doi: 10.1056/NEJM198812083192306. [DOI] [PubMed] [Google Scholar]
  • 32.Walder K, Flippis A, Clark S, et al. Leptin inhibits insulin binding in isolated rat adipocytes. J Endocrinol. 1997;155:R5–R7. doi: 10.1677/joe.0.155r005. [DOI] [PubMed] [Google Scholar]
  • 33.Cohen B, Novich D, Rubinstein M. Modulation of insulin activities by leptin. Science. 1996;274:1185–1188. doi: 10.1126/science.274.5290.1185. [DOI] [PubMed] [Google Scholar]
  • 34.Karlsson C, Lindell K, Svensson E, et al. Expression of func-tional leptin receptors in the human ovary. J Clin Endocrinol Metab. 1997;82:4144–4148. doi: 10.1210/jcem.82.12.4446. [DOI] [PubMed] [Google Scholar]
  • 35.Spicer JL, Francisco CC. The adipose obese gene product, lep-tin: Evidence of a direct inhibitory role on ovarian function. Endocrinology. 1997;138:3374–3379. doi: 10.1210/endo.138.8.5311. [DOI] [PubMed] [Google Scholar]
  • 36.Jacobs HS. Familial aspects of polycystic ovary syndrome. Gy-necol Forum. 1997;2:8–10. [Google Scholar]
  • 37.Dunaif A, Xia J. Book CB, et al.: Excessive insulin receptor phosphorylation in cultured fibroblasts and in skeletal muscles. J Clin Invest. 1995;96:801–810. doi: 10.1172/JCI118126. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 38.Zhang LH, Rodrigues H, Ohno S, et al. Serine phosphorylation of human p450 c17 increases 17,20 lyase activity: Implications for adrenarche and the polycystic ovary syndrome. Proc Natl Acad Sci. 1995;92:10619–10623. doi: 10.1073/pnas.92.23.10619. [DOI] [PMC free article] [PubMed] [Google Scholar]

Articles from Journal of Assisted Reproduction and Genetics are provided here courtesy of Springer Science+Business Media, LLC

RESOURCES