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

How Can You Benefit From Vitamin B12?

Is a Good Night's Sleep at the Top of Your Wishlist?

Ashwagandha Helps Hormones - Aids Arthritis

A Breathalyzer for Disease?

Why You Should Be Eating More Porcini Mushrooms

Tryptophan's Possible Effects for Your Health

How Bacopa Can Help Improve Your Cognitive Function

Black Tea Is Great for Your Gut

Magnesium Reduces Diabetes and Helps Keep You Young

Lavender Aromatherapy Can Ease Pre-Op Anxiety

 
Print Page
Email Article

Daily rhythm of serum melatonin levels and effect of light exposure in patients with dementia of the Alzheimer's type.

  [ 12 votes ]   [ Discuss This Article ]
By Ohashi Y, Okamoto N, Uchida K, Iyo M, Mori N, Mori • www.ProHealth.com • June 15, 1999


BACKGROUND: Several studies have suggested that patients with dementia experience a deterioration of biological rhythms. We investigated the daily profile of serum melatonin levels in patients with dementia of the Alzheimer's type (AD), since daily melatonin rhythm is thought to reflect the functioning of the biological clock.

METHODS: Seventeen inpatients with AD, 10 psychiatric inpatients without dementia, and 11 elderly healthy volunteers participated in this study. Serum melatonin was assessed every 3 hours by radioimmunoassay.

RESULTS: A daily fluctuation of melatonin levels with a significant nocturnal increase was observed in all three subject groups. However, both the AD patients and psychiatric patients without dementia showed significantly higher levels of melatonin in the daytime compared with the healthy subjects. When the effect of bright light exposure on melatonin secretion was investigated in six AD patients and five psychiatric patients without dementia, the daytime levels were markedly decreased in the patients without dementia, while no change was observed in the AD patients.

CONCLUSIONS: The high levels of melatonin in the daytime associated with a lack of response to light exposure in AD patients may be due to the neurodegenerative process of this disease.

Source: Biol Psychiatry 1999 Jun 15;45(12):1646-52
PMID: 10376127, UI: 99304415

(Department of Psychiatry and Neurology, Hamamatsu University School of Medicine, Japan.)




Post a Comment

Featured Products From the ProHealth Store
FibroSleep™ Vitamin D3 Extreme™ Mitochondria Ignite™ with NT Factor®


Article Comments



Be the first to comment on this article!

Post a Comment


 
Optimized Curcumin Longvida with Omega-3

Featured Products

Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils

Natural Remedies

Running on Empty? Fuel Up with NADH Running on Empty? Fuel Up with NADH
Stop Bacteria With Nature's Antibiotics Stop Bacteria With Nature's Antibiotics
Enhance Eyelashes Naturally Enhance Eyelashes Naturally
Energy Breakthrough - One Fibromyalgia Patient’s Fortuitous Discovery Energy Breakthrough - One Fibromyalgia Patient’s Fortuitous Discovery
Pioneer Scientists Uncover a Revolutionary Neuroprotective Supplement for Nerve Health Pioneer Scientists Uncover a Revolutionary Neuroprotective Supplement for Nerve Health

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