Navigation Links
Short-Term, Early HRT May Cut Women's Alzheimer's Risk: Study
Date:10/25/2012

By Barbara Bronson Gray
HealthDay Reporter

WEDNESDAY, Oct. 24 (HealthDay News) -- It is said that timing is everything. When it comes to taking hormone replacement therapy, that may indeed be true.

A new study has found that taking hormone replacement therapy within five years of menopause may reduce the risk of developing Alzheimer's disease by 30 percent compared to women who have not used hormone therapy.

The researchers set out to better understand why some previous studies had shown hormones were effective in reducing Alzheimer's risk while others had not.

The Women's Health Initiative Memory Study, a large, multicenter trial, was stopped prematurely in 2002 due to concerns that the hormones might be raising the risks of cardiovascular disease, cancer and dementia.

"The Women's Health study put a cloud over doing further research," said Peter Zandi, author of the latest study and an associate professor at Johns Hopkins University Bloomberg School of Public Health, in Baltimore. "But there was still some mystery: Why were those results so different?"

The new study, performed by a different team of researchers, expanded the previous research by including up to seven years of additional follow-up and more detailed data on the duration, type and timing of hormone therapy.

The new research was published online Oct. 24 in the journal Neurology.

"We found there is likely a critical window after menopause when hormone therapy may be beneficial," Zandi said. "But if started later after menopause, hormones may actually increase the risk of developing Alzheimer's."

Why might that timing be important?

"We don't really know, but we have some ideas," Zandi said. "Around menopause there's a sudden decline in endogenous estrogens, and that may have some provocative effect. Alzheimer's is a chronic disease that most likely has roots in middle age, or earlier." Endogenous estrogens are those that are made naturally by the body.

The researchers followed nearly 1,800 women from Cache County, Utah, aged 65 and older, for 11 years. The participants provided a history of their hormone therapy use and the approximate date when menopause began.

In all, more than 1,100 participants had used hormone therapy, either consisting of estrogen alone or in combination with progestin. During the study, 7.9 percent of the women who had taken hormones developed Alzheimer's disease compared with 13.4 percent of the women who had not.

Although those who had begun hormone therapy within five years of menopause had a 30 percent lower risk of Alzheimer's than those who had not used hormones, a higher risk of dementia was observed among women who had started a combined therapy of estrogen and progestin when they were 65 or older.

The U.S. Preventive Services Task Force, an independent group of national experts in prevention and evidence-based medicine, issued a final statement Oct. 23 recommending against the use of hormone therapy to prevent chronic conditions such as heart disease or dementia in women who had experienced menopause.

Given that recommendation, and the wide range of research about hormone replacement therapy, what should women do?

Dr. Victor Henderson, professor of neurology and health research and policy at Stanford University, said the research shouldn't spur women to take hormone therapy in an effort to cut their risk of getting Alzheimer's.

"I don't think the message is that women of any age should take the hormones to reduce dementia risk," he said.

Henderson, who wrote an accompanying editorial in same journal issue, urged caution: "More research is needed before we can make new recommendations for women about their use of hormone replacement therapy," he said.

More information

Learn more about hormone replacement therapy from the U.S. National Library of Medicine.

SOURCES: Peter Zandi, Ph.D., associate professor, department of mental health, Johns Hopkins University, Baltimore; Victor Henderson, M.D., M.S., professor, health research and policy, and neurology, Stanford University, Palo Alto, Calif.; Oct. 23, 2012, press release, U.S. Preventive Services Task Force; Oct. 24, 2012, Neurology


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. New Stool Test Might Aid in Early Detection of Colon Cancer
2. An Early Start for Your Child with Autism
3. Early Study Finds Some Promise for Lung Cancer Vaccine
4. Treat Rheumatoid Arthritis Early and Aggressively: Guidelines
5. JCI early table of contents for April 9, 2012
6. Eye Tremors May Aid Early Diagnosis of Parkinsons: Study
7. Nearly 1 in 4 grandparents store prescription medicines where children can easily find them
8. First contact: Early intervention key in diagnosis and treatment of serious mental illness
9. Brain Tumor Vaccine Shows Promise in Early Trial
10. Role of Screening, Monitoring in Early Kidney Disease Unclear
11. Detecting malaria early to save lives: New optical technique promises rapid and accurate diagnosis
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Short-Term, Early HRT May Cut Women's Alzheimer's Risk: Study
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... ... health policy issues and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, ... work on several important health care topics including advance care planning, healthcare costs ...
(Date:6/25/2016)... Lewisville, TX (PRWEB) , ... June 25, 2016 , ... ... in the United States, named Dr. Sesan Ogunleye, as the Medical Director of its ... be the facility Medical Director of our new Mesquite location,” said Dr. James M. ...
(Date:6/25/2016)... Montreal, Canada (PRWEB) , ... June 25, 2016 , ... ... the pursuit of success. In terms of the latter, setting the bar too high ... low, risk more than just slow progress toward their goal. , Research from ...
(Date:6/24/2016)... PASADENA, CA (PRWEB) , ... June 24, 2016 , ... Marcy was in a crisis. ... he would lash out at his family verbally and physically. , “When something upset him, ... table, he would use it. He would throw rocks at my other children and say ...
(Date:6/24/2016)... San Diego, CA (PRWEB) , ... June 24, 2016 , ... ... up with the American Cancer Society and the Road To Recovery® program to drive ... care to seniors and other adults to ensure the highest quality of life and ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... PUNE, India , June 24, 2016 ... "Pen Needles Market by Type (Standard Pen Needles, Safety ... 12mm), Therapy (Insulin, GLP-1, Growth Hormone), Mode of Purchase ... published by MarketsandMarkets, This report studies the market for ... is expected to reach USD 2.81 Billion by 2021 ...
(Date:6/23/2016)... HOUSTON , June 23, 2016  MedSource ... platform as its e-clinical software solution of choice.  ... the best possible value to their clients by ... nowEDC.  The preferred relationship establishes nowEDC as the ... pricing for MedSource,s full-service clients.  "nowEDC has long ...
(Date:6/23/2016)... 23, 2016  In a startling report released today, National ... by lacking a comprehensive, proven plan to eliminate prescription opioid overdoses. ... of how states are tackling the worst drug crisis in recorded ... – Kentucky , New Mexico ... . Of the 28 failing states, three – Michigan ...
Breaking Medicine Technology: