Featured Research

from universities, journals, and other organizations

Does Growth Hormone Drug Slow Alzheimer's Disease?

Date:
November 22, 2008
Source:
American Academy of Neurology
Summary:
A new study shows that a drug that increases the release of growth hormone failed to slow the rate of progression of Alzheimer's disease in humans.

A new study shows that a drug that increases the release of growth hormone failed to slow the rate of progression of Alzheimer's disease in humans.

Growth hormone is naturally produced in the body and stimulates the release of another hormone called insulin-like growth factor-1 (IGF-1). Studies on mice have suggested that IGF-1 helps reduce beta-amyloid, which is a form of plaque, from the brain. The accumulation of beta-amyloid is a core feature of Alzheimer's disease and is thought to be an important cause of the memory and behavioral symptoms of the disease.

In the study, scientists used the investigational compound MK-677 to boost the blood levels of the hormone. MK-677 stimulates the release of natural growth hormone from the pituitary gland. The growth hormone then stimulates the release of IGF-1 in other parts of the body.

The study involved 416 people who had mild to moderate Alzheimer's disease who underwent brain scans. Half of the group took MK-677 and the other half took a placebo for one year.

The study found that MK-677 did not slow the symptoms of Alzheimer's disease even though MK-677 was effective in increasing levels of IGF-1.

"This work suggests that targeting this hormone system may not be an effective approach to slowing the rate of Alzheimer's disease progression," says study author J.J. Sevigny, MD, of Merck Research Laboratories in North Wales, PA. "Importantly it challenges the common theory that hormones may attack beta-amyloid plaque in the brain and builds on the body of clinical evidence for Alzheimer's disease as we seek to develop more effective treatments."

It is estimated that every 70 seconds, someone in the United States develops Alzheimer's disease. There are only five drugs that are FDA approved to treat the symptoms of the disease.

The new research is published in the November 18, 2008, print issue of Neurology®, the medical journal of the American Academy of Neurology. The study was supported by Merck Research Laboratories.


Story Source:

The above story is based on materials provided by American Academy of Neurology. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Neurology. "Does Growth Hormone Drug Slow Alzheimer's Disease?." ScienceDaily. ScienceDaily, 22 November 2008. <www.sciencedaily.com/releases/2008/11/081117192902.htm>.
American Academy of Neurology. (2008, November 22). Does Growth Hormone Drug Slow Alzheimer's Disease?. ScienceDaily. Retrieved August 30, 2014 from www.sciencedaily.com/releases/2008/11/081117192902.htm
American Academy of Neurology. "Does Growth Hormone Drug Slow Alzheimer's Disease?." ScienceDaily. www.sciencedaily.com/releases/2008/11/081117192902.htm (accessed August 30, 2014).

Share This




More Health & Medicine News

Saturday, August 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) — A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Liberia Continues Fight Against Ebola

Liberia Continues Fight Against Ebola

AFP (Aug. 30, 2014) — Authorities in Liberia try to stem the spread of the Ebola epidemic by raising awareness and setting up sanitation units for people to wash their hands. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
California Passes 'yes-Means-Yes' Campus Sexual Assault Bill

California Passes 'yes-Means-Yes' Campus Sexual Assault Bill

Reuters - US Online Video (Aug. 30, 2014) — California lawmakers pass a bill requiring universities to adopt "affirmative consent" language in their definitions of consensual sex, part of a nationwide drive to curb sexual assault on campuses. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
3 Things To Know About The Ebola Outbreak's Progression

3 Things To Know About The Ebola Outbreak's Progression

Newsy (Aug. 29, 2014) — Here are three things you need to know about the deadly Ebola outbreak's progression this week. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins