ALLERGY, RESPIRATORY
Asthmatics Who Quit Smoking May Reverse Lung Damage
Know Your Asthma Triggers
Keep Asthma, Allergies at Bay for the Holidays
ALTERNATIVE MEDICINE
Licorice May Block Absorption of Organ Transplant Drug
When Healing Becomes a Commodity
Hypnosis Cuts Hot Flashes for Breast Cancer Survivors
ANIMAL CARE
Beware of Dog Bites
Safe Toys for Dogs
'Comfort Dogs' Come to Emotional Rescue
BONES & JOINTS
Put Your Best Foot Forward Next Year
More Faces Being Spared in Motor Vehicle Accidents
Tips to Ease an Aching Back
CANCER
Higher Vitamin D Intake Could Cut Cancer Risk
Researchers ID Genetic Markers for Esophageal Cancer
Exercise Cuts Lung Cancer Risk in Ex-Smokers by 45%
CAREGIVING
Older Caregivers Prone to Worse Sleep Patterns
With Alzheimer's, Health-Care Costs Could Triple
Hospital Practices Influence Which Moms Will Breast-Feed
CIRCULATORY SYSTEM
Smog Tougher on the Obese
Obesity Linked to Heart Failure Risk
Health Tip: Are You Anemic?
COSMETIC
Get Sugared!.... Its a sweet choice for hair removal
Contact Lenses Boost Kids' Self-Image
The Acne Drug Accutane More Than Doubles Depression Risk
DENTAL, ORAL
Obesity Boosts Gum Disease Risk
Gummy Bears Join Cavity Fight
Periodontal Disease Impacts Whole Health
DIABETES
Older Diabetics With Depression Face Higher Death Rate
Patients' Photos Help Boost Radiologists' Accuracy
Study Shows Turmeric May Prevent Type 2 Diabetes
DIET, NUTRITION
Iced Teas Pose High Risk of Kidney Stones
Occaisonal Dieting May Cut Breast Cancer, Study Says
Soluble Fiber, But Not Bran, Soothes Irritable Bowel
DISABILITIES
Could Your Cell Phone Help Shield You From Alzheimer's?
Review Finds Marijuana May Help MS Patients
ENVIRONMENTAL HEALTH
Gene Mutation May Cause Some Cases of Seasonal Affective Disorder
Arsenic in Drinking Water Raises Diabetes Risk
Researchers ID Genetic Markers for Esophageal Cancer
EYE CARE, VISION
Time Teaches Brain to Recognize Objects
Antioxidant-Rich Diet May Protect Against Eye Disease
Retinal Gene Is Linked to Childhood Blindness
FITNESS
School Phys. Ed. Injuries Up 150 Percent
Barefoot Best for Running?
Any Exercise Good After a Heart Attack
GASTROINTESTINAL PROBLEMS
New Guidelines Issued for Management of IBS
Intestinal Bacteria Trigger Immune Response
Peppermint Oil, Fiber Can Fight Irritable Bowel
GENERAL HEALTH
Fructose Boosts Blood Pressure, Studies Find
Deployment Takes Toll on Army Wives
Eat Light - Live Longer
HEAD & NECK
Zen May Thicken Brain, Thwart Pain
Ski Helmets Encouraged for All
Many Children Will Outgrow Headaches
HEALTH & TECHNOLOGY
Combating Myths About Seasonal Allergies
Imaging Sheds Light on How Acupuncture Works
The Internet Is Becoming One-Stop Shopping for Health Help
HEARING
Noise Hurts Men's Hearing More, Study Shows
Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
Omega-3, Some Omega-6 Fatty Acids Boost Cardiovascular Health
Too-Low Blood Pressure Can Also Bring Danger
How Weight Loss Can Help the Heart
INFECTIOUS DISEASE
Swine Flu Now Reported in All 50 States
Chinese 'Devil Dung' Plant Could Be a Swine Flu Fighter
Viral Infection Might Trigger High Blood Pressure
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Most Depressed Teens Don't Get Treatment
Exercise During Pregnancy Keeps Newborn Size Normal
Working Intensely Early on May Help Autistic Kids
MEN'S HEALTH
Physical Activity May Prolong Survival After Colon Cancer
The Dark Side of Vegetarianism
Soy Linked to Low Sperm Count
MENTAL HEALTH
Fear Response May Stem From Protein in Brain
Environmental Chemicals May Affect Male Reproduction
Green Spaces Boost the Body and the Mind
PAIN
Acupuncture, Real or Fake, Eases Back Pain
Are We Exercising Pain Away? Not So Much.
'Cell Phone Elbow' -- A New Ill for the Wired Age
PHYSICAL THERAPY
PREGNANCY
Before Conceiving, Take Folic Acid for One Full Year
Obesity May Affect Fertility in Young Womene
For Baby and Mom Alike, Breast-Feeding May Be Best
SENIORS
15-Point Test Gauges Alzheimer's Risk
Memory Loss Help from Brain Supplement Prevagen
Seniors Cope With Sleep Loss Better Than Young Adults
SEXUAL HEALTH
SLEEP DISORDERS
Better Sleep, Grades Seem to Go Up
Exercising Throat Muscles May Relieve Sleep Apnea
Moderate Aerobics May Ease Insomnia Symptoms
WOMEN'S HEALTH
Lifting Weights Can Ease Arm Swelling in Breast Cancer Survivors
Broccoli May Help Battle Breast Cancer
Varicose Veins May Mask Larger Problem
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What Moms Learned May Be Passed to Offspring

THURSDAY, Feb. 5 (HealthDay News) -- The things mothers did as children may affect their children's memory and the severity of learning disorders, according to U.S. researchers who studied the brain function of pre-adolescent mice with a genetically engineered memory deficit.

This memory deficit was reversed when the mice were given two weeks of exposure to an enriched environment that included stimulatory objects, enhanced social interaction and voluntary exercise. These mice later gave birth to offspring with the same genetic mutation. But the offspring showed no signs of memory problems even though they were never placed in an enriched environment.

The findings were published in the Feb. 4 issue of The Journal of Neuroscience.

"What is so unique about this study is that we provided an enriched environment during pre-adolescence, months before the mice became pregnant, yet the beneficial effect reached into the next generation. The offspring had improved memory even without an enriched environment," study co-investigator Dean Hartley, a neuroscience researcher at Rush University Medical Center, said in a university news release.

"We were able to demonstrate that environmental enrichment during youth has dramatic additional powers. It can enhance the memory in future offspring of enriched juvenile mice," Hartley said.

Previous research found that placing young, normal and memory-deficient mice in an enriched environment for a fairly short period of time unlocks an otherwise dormant biochemical and control mechanism that boosts a cellular process in nerve cells called long-term potentiation (LTP), which is believed to be involved in learning and memory.

"This is the first study to demonstrate an inheritance of a change in a signaling pathway that promotes LTP and enhancement of memory formation, and that defects caused by a genetic mutation can be reversed by what the mother is exposed to during her youth," Hartley said.

More information

The Nemours Foundation has more about children and memory.



-- Robert Preidt



SOURCE: Rush University Medical Center, news release, Feb. 3, 2009

Last Updated: Feb. 05, 2009

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