ALLERGY, RESPIRATORY
Traffic, Dust Linked to Asthma in Kids
Herbal Remedy Could Halt Peanut Allergy
Using Music and Sports to Improve Kids' Asthma
ALTERNATIVE MEDICINE
Taking the Mystery Out of Hypnotherapy
Acupuncture Eases Side Effects of Head, Neck Cancer Treatments
Insight on Herbals Eludes Doctors, Patients Alike
ANIMAL CARE
Beware of Dog Bites
Animals Respond to Acupuncture's Healing Touch
Rest Easy. When It Comes to Swine Flu, Your Pet Is Safe
BONES & JOINTS
Exercise Key Player in Knee Replacement Recovery
Yoga Can Ease Lower Back Pain
Tai Chi May Help Ease Fibromyalgia
CANCER
Ginger Can Ease Nausea From Chemotherapy Treatments
Smokeout '08: The Perfect Time to Quit
Selenium, Omega-3s May Stave Off Colorectal Cancer
CAREGIVING
Acute Respiratory Distress Syndrome as Deadly as Ever
UV Lights, Fans May Curb TB Spread in Hospitals
Weekend Admission May Be Riskier for GI Bleeding
CIRCULATORY SYSTEM
Common Antioxidant Might Slow Parkinson's
Exercise May Blunt Salt's Effect on Hypertension
Varicose Veins May Mask Larger Problem
COSMETIC
Contact Lenses Boost Kids' Self-Image
What to Do If You Have Unsightly Veins
Mouse Study Finds Molecule That Tells Hair to Grow
DENTAL, ORAL
Study Links Osteoporosis Drugs to Jaw Trouble
Acupuncture May Ease Anxiety Over Dental Work
Holistic Dentistry-My View
DIABETES
Chamomile Tea May Ward Off Diabetes Damage
Lifestyle Factors Tied to Older Adults' Diabetes Risk
Fructose-Sweetened Drinks Up Metabolic Syndrome Risk
DIET, NUTRITION
Purple Tomato Extended Lives of Cancer-Prone Mice
Uncover Why Turmeric Helps You Heal
Whole Grains, Bran May Fight Hypertension in Men
DISABILITIES
Could Your Cell Phone Help Shield You From Alzheimer's?
Review Finds Marijuana May Help MS Patients
ENVIRONMENTAL HEALTH
Home Renovations by Affluent Families Can Unleash Lead Threat
Gene Mutation May Cause Some Cases of Seasonal Affective Disorder
Artificial Light Linked to Prostate Cancer Risk
EYE CARE, VISION
Protein Might One Day Prevent Blindness
Omega-3 Foods May Lower Eye Disease Risk
FDA Goes After Unapproved Eye Washes, Skin Ointments
FITNESS
Keep Safety in Mind While Your Kids Are Cooling Off in the Water
Tai Chi: An Ideal Exercise for Many People with Diabetes
Daily Exercise at School Yields Rewards
GASTROINTESTINAL PROBLEMS
Japanese Herbals May Ease Gastro Woes
Olive Oil May Protect Against Bowel Disease
Traditional Nonsurgical GERD Treatments Not Impressive
GENERAL HEALTH
Eating Well And Keeping Active As You Grow Old Will Help You Stay Sharp
Week of Historic Senate Hearings on Integrative Medicine May Open New Doors
More Whole Grains May Mean Less Fat
HEAD & NECK
Zen May Thicken Brain, Thwart Pain
Many Children Will Outgrow Headaches
Ski Helmets Encouraged for All
HEALTH & TECHNOLOGY
Magnet Therapy May Ease Hard-to-Treat Depression
'Cell Phone Elbow' -- A New Ill for the Wired Age
The Internet Is Becoming One-Stop Shopping for Health Help
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Arteries Age Twice as Fast in Smokers
Western Diet Linked To Heart Disease, Metabolic Syndrome
Women Who Run May Benefit From Extra Folic Acid
INFECTIOUS DISEASE
Swine Flu Is Now a Pandemic Says W.H.O.
More Medicinal Uses for Pomegranate
Swine Flu Now Reported in All 50 States
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Backpack Safety Should Be on Back-to-School Lists
Gene Variation Found in Boys With Delinquent Peers
Time to Remind Teens About Sun Protection
MEN'S HEALTH
Lots of Sex May Prevent Erectile Dysfunction
Varicose Veins May Mask Larger Problem
Exercise May Prevent Prostate Cancer: Study Shows
MENTAL HEALTH
A Simple 'Thank You' Brings Rewards to All
Daily dose of beet juice promotes brain health in older adults
Estrogen May Help Men's Hearts
PAIN
Tai Chi May Help Ease Fibromyalgia
Alleviating Rheumatoid Arthritis
'Cell Phone Elbow' -- A New Ill for the Wired Age
PHYSICAL THERAPY
PREGNANCY
For Baby and Mom Alike, Breast-Feeding May Be Best
Heart Defects in Newborns Linked to Antidepressants
Breast-Feeding Benefits Moms and Babies
SENIORS
Healthy Diet Could Cut Alzheimer's Disease Risk
Boost In Elderly Population Will Be Felt Worldwide
Nighttime Urination Linked to Higher Death Rate Among Elderly
SEXUAL HEALTH
SLEEP DISORDERS
Exercising Throat Muscles May Relieve Sleep Apnea
Sleeping Could Help Women Lose The Baby Fat
Daylight Savings: Not a Bright Time for All
WOMEN'S HEALTH
Women Smokers Lose 14.5 Years Off Life Span
Flame-Retardant Chemical Linked to Conception Problems
Soy May Not Lead to Denser Breasts
Add your Article

Clues Found to Brain Mechanism Behind Migraines

WEDNESDAY, March 11 (HealthDay News) -- Scientists believe they may have found the biological trigger to a particular type of migraine headache.

In the March 12 issue of Neuron, an Italian university study on mice found that increased levels of the neurotransmitter glutamate in the brain appear to kick off a cortical spreading depression (CSD), a phenomenon that causes migraine sufferers to experience a visual disturbance known as migraine aura. The mice in the study had a gene mutation that has been shown to make people more susceptible to familial hemiplegic migraine (FHM), a subtype of severe migraine accompanied by the aura.

Brain imaging has previously shown that strong neuronal depolarization creeps across the cerebral cortex during CSD, initially increasing electrical signals in the brain, then suppressing neural activity for an extended period of time. Researchers have suspected CSD may flip on certain switches that start a migraine headache.

The researchers from the University of Padova, led by senior author Daniela Pietrobon, found that calcium influx and subsequent glutamate release at cortical pyramidal cell synapses were greater in mice with the FHM mutation. When the release of glutamate -- the major excitatory neurotransmitter in the brain -- was decreased to normal levels, the mice did not experience aura-inducing CSD.

"Our findings provide direct evidence that enhanced glutamate release may explain the facilitation of CSD in the FHM mouse model," Pietrobon, who works in the university's biomedical sciences department, said in a news release issued by the journal's publisher.

More information

The U.S. National Institute of Neurological Disorders and Stroke has more about migraines.



-- Kevin McKeever



SOURCE: Cell Press, news release, March 11, 2009

Last Updated: March 11, 2009

Copyright 2009 ScoutNews, LLC. All rights reserved.

More articles at www.eholistic.com