ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

Magnesium Protects Against Stroke, Heart Disease and Diabetes

Astaxanthin Is a Longevity Promoter

Meta-analysis links vitamin D deficiency with increased risk of mortality during 10.5 year median pe...

Prevent Or Reverse Diabetes: An Amazing Herbal Intervention

Exercise and Vitamin D Better Together for Heart Health

VIDEO: Essential Oils for Weight Loss

Can Valerian Root Help You Sleep Better?

Eight servings of veggies a day is clearly best for the heart

The Many Wonders of Calming Sandalwood Oil

Fighting Statin-Induced Diabetes with CoQ10

 
Print Page
Email Article

Soluble Alzheimers beta-amyloid constricts the cerebral vasculature in vivo.

  [ 39 votes ]   [ Discuss This Article ]
By Suo Z, Humphrey J, Kundtz A, Sethi F, Placzek A, C • www.ProHealth.com • November 27, 1998


Bilateral temporoparietal hypoperfusion has been frequently observed early in the Alzheimer's disease (AD) process. An increased beta-amyloid (Abeta) peptide is believed to play a central role in the pathogenesis of AD. In vitro experiments have shown that freshly solubilized Abeta enhances constriction of cerebral and peripheral vessels. We propose that in vivo the Abeta vasoactive property may contribute to cerebral hypoperfusion of AD patients.

To test this hypothesis, we intra-arterially infused freshly solubilized Abeta -40 in rats and observed changes in cerebral blood flow and cerebrovascular resistance using fluorescent microspheres. We found that infusion of Abeta in vivo resulted in a decreased blood flow and increased vascular resistance specifically in cerebral cortex but not in heart or kidneys.

These data suggest that Abeta has a direct and specific constrictive effect on cerebral vessels in vivo, which may contribute to the cerebral hypoperfusion observed early in the AD process.

Source: Neurosci Lett 1998 Nov 27;257(2):77-80
PMID: 9865931, UI: 99081529

(Roskamp Institute, University of South Florida, Tampa 33613, USA. zsuo@com1.med.usf.edu )




Post a Comment

Featured Products From the ProHealth Store
Ultra ATP+, Double Strength Energy NADH™ 12.5mg Vitamin D3 Extreme™

Looking for Vitamins, Herbs and Supplements?
Search the ProHealth Store for Hundreds of Natural Health Products


Article Comments



Be the first to comment on this article!

Post a Comment


 
NAD+ Ignite with Niagen

Featured Products

Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function

Natural Remedies

The Crucial Role CoQ10 Plays in Fibromyalgia and ME/CFS The Crucial Role CoQ10 Plays in Fibromyalgia and ME/CFS
How Glutathione Can Save Your Life How Glutathione Can Save Your Life
Fight Inflammation and Promote Cognitive Health with High-OPC Grape Seed Fight Inflammation and Promote Cognitive Health with High-OPC Grape Seed
Rejuvenating the Brain - How PQQ Helps Power Up Mental Processing Rejuvenating the Brain - How PQQ Helps Power Up Mental Processing
Herbal Rescue for High Blood Sugar Herbal Rescue for High Blood Sugar

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE TO OUR NEWSLETTERS
Get the latest news about Fibromyalgia, M.E/Chronic Fatigue Syndrome, Lyme Disease and Natural Wellness

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2017 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map