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

Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

Social Anxiety Disorder Linked to High Serotonin Levels, Throwing Treatment with SSRIs into Serious ...

A short-term Borrelia burgdorferi infection model identifies tissue tropisms and bloodstream surviva...

Can Botanicals Beat Brain Fog & Fibrofog?

New Research Substantiates the Anti-Aging Properties of DHEA

Immune response to a flu vaccine yields new insights into narcolepsy

Why WokVel® + Longvida® Makes Sense for FM/CFS Aches & Pains

Children with Lyme Disease

Omega-3 supplements and antioxidants may help with preclinical Alzheimer's disease

Promoting Optimal Nutrition with Digestive Enzymes

7-Keto DHEA The Fat-Burning Metabolite of DHEA

 
Print Page
Email Article

Reduced Brain GABA in Primary Insomnia: Preliminary Data from 4T Proton Magnetic Resonance Spectroscopy (1H-MRS) - Source: Sleep, Nov 2008

  [ 15 votes ]   [ Discuss This Article ]
By John W Winkelman, MD, PhD, et al. • www.ProHealth.com • November 13, 2008


[GABA (gamma-aminobutyric acid) is naturally made in the brain from the amino acid glutamate, helped by vitamin B6. It is the brain’s chief ‘inhibitory’ neurotransmitter, known to help induce relaxation, analgesia, and sleep.]

Study Objectives: Both basic and clinical data suggest a potential significant role for GABA in the etiology and maintenance of primary insomnia (PI). Proton magnetic resonance spectroscopy (1H-MRS) can non-invasively determine GABA levels in human brain. Our objective was to assess GABA levels in unmedicated individuals with PI, using 1H-MRS.

Design and Setting: Matched-groups, cross-sectional study conducted at two university-based hospitals.

Participants: Sixteen non-medicated individuals (8 women) with PI (mean age = 37.3 +/- 8.1) and 16 (7 women) well-screened normal sleepers (mean age = 37.6 +/- 4.5).

Methods and Measurements: PI was established with an unstructured clinical interview, a Structured Clinical Interview for DSM-IV (SCID), sleep diary, actigraphy and polysomnography (PSG). 1H-MRS data were collected on a Varian 4 Tesla magnetic resonance imaging/spectroscopy scanner. Global brain GABA levels were averaged from samples in the basal ganglia, thalamus, and temporal, parietal, and occipital white-matter and cortex.

Results: Average brain GABA levels were nearly 30% lower in patients with PI (.18 +/- .06) compared to controls (.25 +/- .11).

GABA levels were negatively correlated with wake after sleep onset (WASO) on two independent PSGs (r = -0.71, p = 0.0024 and -0.70, p = 0.0048). [Less GABA, increased wake after sleep.]

Conclusions: Our preliminary finding of a global reduction in GABA in non-medicated individuals with PI is the first demonstration of a neurochemical difference in the brains of those with PI compared to normal sleeping controls. 1H-MRS is a valuable tool to assess GABA in vivo, and may provide a means to shed further light on the neurobiology of insomnia.

Source: Sleep, Nov 2008; 31(11). Winkelman JW, Buxton OM, Jensen JE, Benson KL, O’Connor SP, Wang W, Renshaw PF. Division of Sleep Medicine, Brigham & Women’s Hospital, Harvard Medical School, Boston, Massachusetts; Brain Imaging Center, McLean Hospital, Belmont, Massachusetts; Department of Psychiatry, Harvard Medical School, Boston, USA. [E-mail: JWinkelman@sleephealth.com]




Please Discuss This Article:   Post a Comment 



[ Be the first to comment on this article ]




 
Free Chronic Fatigue Syndrome and Fibromyalgia Newsletters
Subscribe to
Our FREE
Newsletter
Subscribe Now!
Receive up-to-date ME/CFS & Fibromyalgia treatment and research news
 Privacy Guaranteed  |  View Archives

Save on Nutritional Supplement Orders

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
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%

Natural Remedies

Probiotic Mint Promotes Healthy Gums & Teeth, Freshens Breath and Whitens Teeth Probiotic Mint Promotes Healthy Gums & Teeth, Freshens Breath and Whitens Teeth
Fatigue & Fibro Fog: Could You Have a B-12 Deficiency? Fatigue & Fibro Fog: Could You Have a B-12 Deficiency?
SAD? Coping with Seasonal Affective Disorder
Three-Step Strategy to Reverse Mitochondrial Aging Three-Step Strategy to Reverse Mitochondrial Aging
Coenzyme Q10 - The Energy Maker Coenzyme Q10 - The Energy Maker

FIBROMYALGIA RESOURCES
What is Fibromyalgia?
Fibromyalgia Diagnosis
Fibromyalgia Symptoms
Fibromyalgia Treatments
| CFS RESOURCES
What is CFS?
ME/CFS Diagnosis
ME/CFS Symptoms
ME/CFS Treatments
| FORUMS
Fibromyalgia
ME/CFS
ADVANCED MEDICAL LABS
WHOLESALE  |  AFFILIATES
GUARANTEE  |  PRIVACY
CONTACT US
LIBRARY
RSS
SITE MAP
ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus
Credit Card Processing