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

Can Autoimmune Conditions be Reversed? Researchers Make a Surprising Discovery

How One Tiny Molecule Turned into One Huge Health Breakthrough

Nutrients Boost Stem Cell Function

Humans have three times more brown body fat

B12 Proven Essential for Every Cell

Soy isoflavones may benefit breast cancer patients

How B Vitamins Improve Brain Health, Cognition, Psychiatric Problems and Mood Disorders

Dietary prebiotics improve sleep, buffer impacts of stress, says study

Exercises to Help Prevent Urinary Incontinence

Higher red blood cell omega 3 levels in women linked to lower risk of mortality over 14.9 year media...

 
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
Vitamin D3 Extreme™ FibroSleep™ Ultra EPA  - Fish Oil

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
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils

Natural Remedies

Aches and Pains? A Simple Solution You'll Love Aches and Pains? A Simple Solution You'll Love
Natural Relief for Soreness, Pain and Swelling - Putting Out the Fire Natural Relief for Soreness, Pain and Swelling - Putting Out the Fire
Magnesium + Malic Acid: One-Two Punch for Pain & Fatigue Magnesium + Malic Acid: One-Two Punch for Pain & Fatigue
Vitamin K-2 – A Key Player in Cardiovascular and Bone Health Vitamin K-2 – A Key Player in Cardiovascular and Bone Health
Secret Nutrient for Radiant Skin Secret Nutrient for Radiant Skin

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