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Decreased sensitivity to insulin in women with microprolactinomas
Fertility and Sterility
|April 1, 1986
Abstract:
To determine whether there exists an altered sensitivity to insulin in hyperprolactinemia, we studied, in 15 women with microprolactinomas, the insulin effects on glucose, PRL, GH, and cortisol before and after successful adenoma removal. Our results show that in women with microprolactinomas, the sensitivity to insulin is lower in hyperprolactinemia than in normoprolactinemia achieved by selective adenomectomy.
Insights
Hyperprolactinemia in women with microprolactinomas is linked to reduced insulin sensitivity. Restoring normal prolactin levels through adenoma removal improves insulin sensitivity.
Area of Science:
- Endocrinology
- Metabolic Research
Background:
- Hyperprolactinemia, often caused by microprolactinomas, can affect hormonal balance.
- Insulin resistance is a growing concern in various endocrine disorders.
Purpose of the Study:
- To investigate insulin sensitivity in women with hyperprolactinemia due to microprolactinomas.
- To assess the impact of normalizing prolactin levels on insulin sensitivity.
Main Methods:
- Studied 15 women with microprolactinomas before and after selective adenomectomy.
- Monitored insulin effects on glucose, prolactin (PRL), growth hormone (GH), and cortisol levels.
Main Results:
- Insulin sensitivity was found to be lower in hyperprolactinemic state.
- Following successful adenoma removal and normalization of prolactin, insulin sensitivity improved.
Conclusions:
- Hyperprolactinemia in microprolactinoma patients is associated with impaired insulin sensitivity.
- Selective adenomectomy and subsequent normoprolactinemia can restore normal insulin sensitivity.