Menopausal women are at greater risk of insulin resistance as a result of declining estrogen levels. Previous studies evaluating the potential benefits of hormone therapy on insulin resistance have produced mixed results. However, a new meta-analysis of 17 different randomized, controlled trials suggests hormone therapy can be beneficial. Results of the meta-analysis were presented at the 2024 Annual Meeting of The Menopause Society in Chicago September 10-14.
In this new meta-analysis of 17 unique randomized, controlled trials that covered more than 29,000 participants between 1998 and 2024, it was found that hormone therapy significantly reduced insulin resistance in healthy postmenopausal women without metabolic diseases including diabetes, hypertension, and cardiovascular diseases.
Cumulative totals of the 17 different trials included 15,350 participants who were randomized to hormone therapy including estrogen alone or estrogen plus progestogen and 13,937 who were randomized to placebo. The mean age of the study population ranged from 47 to 75 years, and treatment duration ranged from eight weeks to two years.
“Our analysis showed that both types of hormone therapy, including oral and transdermal routes, significantly reduced insulin resistance in healthy postmenopausal women, although estrogen alone was associated with a more prominent reduction when compared to a combination hormone therapy,” says Dr. Xuezhi (Daniel) Jiang, lead researcher from Reading Hospital Tower Health and Drexel University College of Medicine in Pennsylvania.
“Hormone therapy is an effective treatment for many bothersome menopause symptoms, including hot flashes,” says Dr. Stephanie Faubion, medical director for The Menopause Society. “This new metaanalysis is important as declining estrogen levels in menopausal women put them at greater risk for insulin resistance and hormone therapy could be beneficial in reducing insulin resistance in these women.”
Reference: “Effect of hormone therapy on insulin resistance in healthy postmenopausal women: A systematic review and meta-analysis of randomized placebo-controlled trials.” presented at 2024 Annual Meeting of The Menopause Society in Chicago September 10-14.
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