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Estrogen-like Medication May Slow Alzheimer’s

pillsNew research suggests mice with induced Alzheimer’s-like symptoms had improved cognitive function when given a synthetic estrogen-like hormone.

“This synthetic hormone improved behavior much the way that estrogen does,” said study leader Dr. Christian Pike, associate professor at the University of Southern California’s School of Gerontology.

But unlike estrogen, which enlarges the uterus and is a known risk factor for endometrial and breast cancer, PPT caused no obvious changes to the animals’ reproductive tract.

“This may be a promising strategy to maximize hormone therapy benefits and minimize its risk,” said Pike.

Estrogen-based hormone therapy has long been studied as a therapeutic option for postmenopausal women to reduce the risk of several age-related disorders, including osteoporosis and Alzheimer’s disease. Some studies have suggested that estrogen may lower the risk of Alzheimer’s. This hormone, however, has also been associated with a number of adverse health effects.

A potential alternative approach to estrogen-based hormone therapy is a synthetic form of the hormone known as selective estrogen receptor modulators (SERMs). SERMs can have the same effect as estrogen, but specifically target certain tissues and certain parts of the body. Two recently developed SERMs—PPT and diarylpropionitrile (DPN)—have been shown to protect cultured neurons from damage.

For their study, the researchers examined the effects of estrogen, PPT, and DPN on female mice. The data confirmed previous studies showing that estrogen significantly reduced the buildup in the brain of the protein beta amyloid, which has been implicated in the development of Alzheimer’s disease. Estrogen also reduced cognitive decline in the mice.

The researchers also observed that PPT was effective in lowering beta amyloid accumulation in most brain regions and also lessened working memory deficits. PPT also appeared to have no adverse impact on the animals’ reproductive tracts.

DPN did not demonstrate the same protective effects.

“These findings suggest it may be possible to design an optimal compound that offers the best protection with the least risk,” said Pike. “This study also should encourage further animal and human research on the potential benefits of SERMs.”

The study was funded by the National Institute on Aging.

The other author of the study was USC graduate student Jenna Carroll.

The paper “Selective estrogen receptor modulator differentially regulate Alzheimer-like changes in female 3xTg-AD mice” will appear in the May 2008 issue of Endocrinology, a publication of The Endocrine Society.

Source: Endocrine Society

Estrogen-like Medication May Slow Alzheimer’s

Rick Nauert PhD

Rick Nauert, PhDDr. Rick Nauert has over 25 years experience in clinical, administrative and academic healthcare. He is currently an associate professor for Rocky Mountain University of Health Professionals doctoral program in health promotion and wellness. Dr. Nauert began his career as a clinical physical therapist and served as a regional manager for a publicly traded multidisciplinary rehabilitation agency for 12 years. He has masters degrees in health-fitness management and healthcare administration and a doctoral degree from The University of Texas at Austin focused on health care informatics, health administration, health education and health policy. His research efforts included the area of telehealth with a specialty in disease management.

APA Reference
Nauert PhD, R. (2018). Estrogen-like Medication May Slow Alzheimer’s. Psych Central. Retrieved on April 25, 2019, from
Scientifically Reviewed
Last updated: 8 Aug 2018
Last reviewed: By a member of our scientific advisory board on 8 Aug 2018
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