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Adiponectin levels in women with polycystic ovary syndrome and severe insulin resistance.

Abstract

OBJECTIVE

Adiponectin is an adipokine that is decreased in obesity and type 2 diabetes. Women with polycystic ovarian syndrome (PCOS) are obese and are at risk for type 2 diabetes. The objective of the current study was to investigate the relationship of adiponectin to obesity and insulin resistance in women with PCOS and severe insulin resistance.

METHODS

Thirty women with PCOS and acanthosis nigricans indicating severe insulin resistance were included in the study. Eleven body mass index (BMI)-matched women with normal ovulatory cycles served as controls. Fasting glucose, insulin, and adiponectin levels were measured, and a standard oral glucose tolerance test (OGTT) with insulin levels was performed. To further investigate the role of insulin sensitivity on adiponectin levels, 10 women with PCOS were treated with 4 mg rosiglitazone daily for 6 months and adiponectin levels were measured before and after treatment.

RESULTS

Fasting insulin levels (33.5 +/- 3.8 microU/mL; P <.001) and insulin area under the curve (AUC) during OGTT (536.2 +/- 70.5 microU/mL; P <.01) were higher in women with PCOS, while glucose levels were similar to controls. Adiponectin levels were lower (P <.01) in women with PCOS (5.6 +/- 2.6 microg/mL) compared with controls (8.5 +/- 3.9 microg/mL). There was a significant negative correlation between adiponectin levels and fasting insulin levels (r = -0.40, P = .02), insulin AUC during OGTT (r = -0.47, P = .008), fasting glucose levels (r = -0.45, P = .01), and glucose AUC during OGTT (r = -0.51, P = .003). There was no correlation between BMI and serum adiponectin (r = -0.12, P = .508) in women with PCOS, while there was a negative correlation (r = -0.746, P = .013) in controls. There was a significant (P <.01) increase in adiponectin levels when treated with rosiglitazone, despite unchanged BMI.

CONCLUSION

These results indicate that in women with PCOS and severe insulin resistance, insulin sensitivity appears to be the major determinant of adiponectin levels rather than adiposity. Low adiponectin levels may predict women with PCOS who are at high risk for developing type 2 diabetes.

Authors+Show Affiliations

,

Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, University of Texas Medical Branch, Galveston, Texas 77555-0587, USA.

Source

MeSH

Adiponectin
Adult
Area Under Curve
Blood Glucose
Dehydroepiandrosterone Sulfate
Female
Glucose Tolerance Test
Humans
Insulin
Insulin Resistance
Intercellular Signaling Peptides and Proteins
Luteinizing Hormone
Obesity
Polycystic Ovary Syndrome
Statistics, Nonparametric
Testosterone

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15695109

Citation

Sepilian, Vicken, and Manubai Nagamani. "Adiponectin Levels in Women With Polycystic Ovary Syndrome and Severe Insulin Resistance." Journal of the Society for Gynecologic Investigation, vol. 12, no. 2, 2005, pp. 129-34.
Sepilian V, Nagamani M. Adiponectin levels in women with polycystic ovary syndrome and severe insulin resistance. J Soc Gynecol Investig. 2005;12(2):129-34.
Sepilian, V., & Nagamani, M. (2005). Adiponectin levels in women with polycystic ovary syndrome and severe insulin resistance. Journal of the Society for Gynecologic Investigation, 12(2), pp. 129-34.
Sepilian V, Nagamani M. Adiponectin Levels in Women With Polycystic Ovary Syndrome and Severe Insulin Resistance. J Soc Gynecol Investig. 2005;12(2):129-34. PubMed PMID: 15695109.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adiponectin levels in women with polycystic ovary syndrome and severe insulin resistance. AU - Sepilian,Vicken, AU - Nagamani,Manubai, PY - 2005/2/8/pubmed PY - 2005/4/9/medline PY - 2005/2/8/entrez SP - 129 EP - 34 JF - Journal of the Society for Gynecologic Investigation JO - J. Soc. Gynecol. Investig. VL - 12 IS - 2 N2 - OBJECTIVE: Adiponectin is an adipokine that is decreased in obesity and type 2 diabetes. Women with polycystic ovarian syndrome (PCOS) are obese and are at risk for type 2 diabetes. The objective of the current study was to investigate the relationship of adiponectin to obesity and insulin resistance in women with PCOS and severe insulin resistance. METHODS: Thirty women with PCOS and acanthosis nigricans indicating severe insulin resistance were included in the study. Eleven body mass index (BMI)-matched women with normal ovulatory cycles served as controls. Fasting glucose, insulin, and adiponectin levels were measured, and a standard oral glucose tolerance test (OGTT) with insulin levels was performed. To further investigate the role of insulin sensitivity on adiponectin levels, 10 women with PCOS were treated with 4 mg rosiglitazone daily for 6 months and adiponectin levels were measured before and after treatment. RESULTS: Fasting insulin levels (33.5 +/- 3.8 microU/mL; P <.001) and insulin area under the curve (AUC) during OGTT (536.2 +/- 70.5 microU/mL; P <.01) were higher in women with PCOS, while glucose levels were similar to controls. Adiponectin levels were lower (P <.01) in women with PCOS (5.6 +/- 2.6 microg/mL) compared with controls (8.5 +/- 3.9 microg/mL). There was a significant negative correlation between adiponectin levels and fasting insulin levels (r = -0.40, P = .02), insulin AUC during OGTT (r = -0.47, P = .008), fasting glucose levels (r = -0.45, P = .01), and glucose AUC during OGTT (r = -0.51, P = .003). There was no correlation between BMI and serum adiponectin (r = -0.12, P = .508) in women with PCOS, while there was a negative correlation (r = -0.746, P = .013) in controls. There was a significant (P <.01) increase in adiponectin levels when treated with rosiglitazone, despite unchanged BMI. CONCLUSION: These results indicate that in women with PCOS and severe insulin resistance, insulin sensitivity appears to be the major determinant of adiponectin levels rather than adiposity. Low adiponectin levels may predict women with PCOS who are at high risk for developing type 2 diabetes. SN - 1071-5576 UR - https://www.unboundmedicine.com/medline/citation/15695109/Adiponectin_levels_in_women_with_polycystic_ovary_syndrome_and_severe_insulin_resistance_ L2 - https://medlineplus.gov/obesity.html DB - PRIME DP - Unbound Medicine ER -