Cited by 188Ovarian function and disordersDiabetes, Cardiovascular Risks, and LipoproteinsGenetic and Kidney Cyst Diseases

Effects of d-chiro-inositol in lean women with the polycystic ovary syndrome

Iuorno, Maria J., Jakubowicz, Daniela J., Baillargeon, Jean-Patrice, Dillon, Pamela, Gunn, Ronald D., Allan, Geoffrey, Nestler, John E.·2002·Endocrine Practice

Abstract

Objective To determine whether the administration of D-chiro-inositol, a putative insulin-sensitizing drug, would affect the concentration of circulating insulin, the levels of serum androgens, and the frequency of ovulation in lean women with the polycystic ovary syndrome.Methods In 20 lean women (body mass index, 20.0 to 24.4 kg/m 2) who had the polycystic ovary syndrome, treatment was initiated with either 600 mg of D-chiro-inositol or placebo orally once daily for 6 to 8 weeks. We performed oral glucose tolerance tests and measured serum sex steroids before and after therapy. To monitor for ovulation, we determined serum progesterone concentrations weekly.Results In the 10 women given D-chiro-inositol, the mean (+/- standard error) area under the plasma insulin curve after oral administration of glucose decreased significantly from 8,343 +/- 1,149 mU/mL per min to 5,335 +/- 1,792 mU/mL per min in comparison with no significant change in the placebo group (P = 0.03 for difference between groups). Concomitantly, the serum free testosterone concentration decreased by 73% from 0.83 +/- 0.11 ng/dL to 0.22 +/- 0.03 ng/dL, a significant change in comparison with essentially no change in the placebo group (P = 0.01). Six of the 10 women (60%) in the D-chiro-inositol group ovulated in comparison with 2 of the 10 women (20%) in the placebo group (P = 0.17). Systolic (P = 0.002) and diastolic (P = 0.001) blood pressures, as well as plasma triglyceride concentrations (P = 0.001), decreased significantly in the D-chiro-inositol group in comparison with the placebo group, in which these variables either increased (blood pressure) or decreased minimally (triglycerides).Conclusion We conclude that, in lean women with the polycystic ovary syndrome, D-chiro-inositol reduces circulating insulin, decreases serum androgens, and ameliorates some of the metabolic abnormalities (increased blood pressure and hypertriglyceridemia) of syndrome X.

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Authors
Iuorno, M. J., Jakubowicz, D. J., Baillargeon, J.-P., Dillon, P., Gunn, R. D., Allan, G., & Nestler, J. E.
Affiliations
  • Virginia Commonwealth University (US)
  • Hospital Clínico Universitario de Caracas (VE)
  • Université de Sherbrooke (CA)
Corresponding author
Nestler, John E.
Venue
Endocrine Practice
Publisher
Elsevier BV
Published
2002-11
Volume
8
Issue
6
Pages
417-423
ISSN
1530-891X (ISSN-L)
OpenAlex
W1984371946
Cited by
188
References
33
Citations by year
2026: 5 · 2025: 7 · 2024: 6 · 2023: 13 · 2022: 3 · 2021: 13 · 2020: 18 · 2019: 5 · 2018: 11 · 2017: 15 · 2016: 17 · 2015: 12 · 2014: 7 · 2013: 9 · 2012: 9
FWCI
1.34
Type
journal article
Language
en
Open access
closed
Locations
  • Endocrine Practice (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (1r43hd035772-01)
  • National Center for Research Resources (M01RR000065, RR00065-37S1)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD035629, R43HD35772, R01HD35629)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian function and disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Kidney Cyst Diseases
Keywords
D-chiro-inositol, polycystic ovary syndrome, insulin sensitivity, insulin resistance, free testosterone, serum androgens, ovulation, insulin sensitizers, metabolic syndrome, blood pressure, hypertriglyceridemia, lean women
MeSH terms
Adolescent, Adult, Blood Glucose, Blood Pressure, Double-Blind Method, Female, Glucose Tolerance Test, Humans, Inositol Phosphates, Insulin, Insulin Antagonists, Placebos, Polycystic Ovary Syndrome, Polysaccharides, Testosterone, Triglycerides, Body Mass Index

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