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Insulin Resistance And Polycystic Ovary Syndrome Share a Link

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Highlights
  • Insulin resistance is a major issue for young women with polycystic ovary syndrome.
  • Impairment in insulin action is a central mechanism in the origin of metabolic abnormalities.
  • High levels of insulin contribute to increased production of androgen.

Insulin Resistance And Polycystic Ovary Syndrome Share a Link

Highlights

  • Insulin resistance is a major issue for young women with polycystic ovary syndrome.
  • Impairment in insulin action is a central mechanism in the origin of metabolic abnormalities.
  • High levels of insulin contribute to increased production of androgen.
Women with polycystic ovary syndrome (PCOS), an endocrine disorder have insulin resistance, according to a new analysis of available data carried out by Dr. Paolo Moghetti, Associate Professor of Endocrinology at the University of Verona, Italy.

Information on epidemiology, pathogenesis, pathophysiology and treatment of the impaired insulin action was reviewed and it was found that it is frequently found in women with the condition.

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According to this analysis, insulin resistance appears to be a key mechanism in the pathogenesis of PCOS itself. High levels of insulin contribute to increased production of androgen, which worsens the symptoms of PCOS.

The impairment in insulin action is a central mechanism in the origin of metabolic abnormalities, which are also frequently found in these women and represent a major aspect underlying the medical burden attributed to PCOS. Hyperinsulinemia can result from decreases in insulin clearance as well as from increased insulin secretion. In PCOS, high levels of circulating insulin is probably the result of a combination of increased basal insulin secretion and decreased hepatic insulin.
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But it is important to note that the risk of insulin resistance differs between clinical phenotypes of PCOS. Therefore, phenotyping of these women is helpful in defining their individual metabolic risk.

Women may have alterations in insulin action of heterogeneous origins, which induce specific abnormalities in these subjects due to the presence of intrinsic defects. Both genetic and acquired factors seem to be involved in this process.

Excess body fat can be another contributing factor that may contribute to this phenomenon, combining with the effect of PCOS per se and worsening many clinical abnormalities typical of these subjects.

In terms of treatment, insulin sensitization, by lifestyle changes and/or specific medications, is a strategy that shows several potential beneficial effects in this condition. However, treatment of these women must be personalized.

Reference
  1. Paolo Moghetti et al., Insulin Resistance and Polycystic Ovary Syndrome, Current Pharmaceutical Design (2016), http://dx.doi.org/10.2174/1381612822666160720155855.
  2. Andrea Dunaif, Insulin Resistance and the Polycystic Ovary Syndrome: Mechanism and Implications for Pathogenesis , Endocrine reviews (2016), http://press.endocrine.org/doi/full/10.1210/edrv.18.6.0318.


Source: Medindia

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