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

16 Tips from 16 Years Sick

Fibromyalgia Fare Fit for All Seasons

New Study Shows Artificial Sweeteners Lead to Diabetes

Essential Oils — An Effective and Healthy Option to Treat Headaches

Higher vitamin D levels associated with less severe disease in NAFLD patients

Krill Oil: Make This Omega-3 Supplement Part of Your Health Regimen

How zinc helps fight esophageal cancer

Low vitamin D levels predict ED in diabetics

The Cellular Enzyme That Promotes Longevity And Reduces Fat Storage

What Benefits Can You Get From High-Quality Whey Protein?

 
Print Page
Email Article

Prenatal Exposure to Mercury From a Maternal Diet High in Seafood Can Irreversibly Impair Certain Brain Functions in Children

  [ 270 votes ]   [ Discuss This Article ]
www.ProHealth.com • February 9, 2004


For immediate release: Friday, February 6, 2004 Boston, MA— With methylmercury a worldwide contaminant of seafood and freshwater fish and known to produce adverse nervous system effects, especially during brain development, researchers from the Harvard School of Public Health and institutions in Japan, Denmark and the Faroe Islands undertook an assessment of possible brain function impairment in adolescent children due to prenatal exposure to mercury when the mothers’diet was high in seafood. The authors found that high levels of mercury passed from mother to child in utero produced irreversible impairment to specific brain functions in the children. The study was carried out in the Faroe Islands and appears in the February issue of The Journal of Pediatrics. Mercury exposures among the children in the study were assessed through analyses of cord blood samples at birth and hair samples taken at ages 7 and 14. Some 1,022 mothers and their children from the Faroe Islands participated in the research. The mothers’ hair mercury levels at childbirth in most cases exceeded 1 microgram per gram, the exposure limit recommended by the National Research Council and the U.S. Environmental Protection Agency (EPA). Follow-up testing of the children showed much lower exposure levels. At the most recent follow-up, more than 850 14 year-olds participated in the study. The Faroe Islands are located in the North Atlantic Ocean between Norway and Iceland. The islands’ economy is centered on the fishing industry and fish processing. The diet of the inhabitants includes high intake of seafood and whale meat. To assess the impact of the exposure to mercury, brainstem auditory evoked potentials (BAEP) were recorded using surface electrodes placed on the skull. At two different sound frequencies, the researchers measured the transmission of electrical signals in the brain from the acoustic nerve, via the pons (connecting the medulla oblongata to the thalamus) to the midbrain. The latency of the electrical transmission from the acoustic nerve to the pons was significantly increased at higher intrauterine exposure to mercury. This observation was found to be true both at 7 years and at 14 years, suggesting that this effect is lasting. Prolonged latencies of the electrical signals to the midbrain among the 14 year-olds was linked to the current mercury exposure and therefore suggested that postnatal mercury exposure may damage brain functions that are different from those that are sensitive to mercury during fetal development. Although hearing loss has been observed in severe mercury poisoning cases in adults, the mercury levels among the children in the study was not associated with detectable hearing loss. The authors did not find a link between simultaneous prenatal exposure to PCBs and electrical signal latencies. A second paper in The Journal of Pediatrics by the same authors reports that the neurological changes are also linked to decreased nervous system control of the heart function. At higher mercury exposures, the children were less capable of maintaining the normal variability of the heart rate necessary to secure proper oxygen supply to the body. “We found that both prenatal and postnatal mercury exposure affects brain functions and that they seem to affect different targets in the brain. The fact that the current exposure has an additional effect, despite the low mercury concentrations is worrisome, especially for communities where seafood constitutes an important part of the diet,” said Philippe Grandjean, senior author of the study and adjunct professor in the Department of Environmental Health at the Harvard School of Public Health. He added, “The current focus on protecting pregnant women against this neurotoxin should be expanded to cover children and adolescents as well. Seafood is an important part of a healthy diet, and consumers should choose species low in the food chain caught in waters without mercury pollution.” He added, “In this country we need to set uniform mercury exposure levels. The children in the study had average exposure levels that are similar to the current limit used by the U.S. Environmental Protection Agency, and 95 percent of them were below the current limit used by the Food and Drug Administration.” The research was supported by grants from the National Institute of Environmental Health Sciences, the Danish Medical Research Council and the Nissan Science Foundation. For further information, please contact: Kevin Myron
Office of Communications
Harvard School of Public Health
677 Huntington Avenue
Boston, MA 02115
Email: kmyron@hsph.harvard.edu Harvard School of Public Health is dedicated to advancing the public's health through learning, discovery, and communication. More than 300 faculty members are engaged in teaching and training the 900-plus student body in a broad spectrum of disciplines crucial to the health and well being of individuals and populations around the world. Programs and projects range from the molecular biology of AIDS vaccines to the epidemiology of cancer; from risk analysis to violence prevention; from maternal and children's health to quality of care measurement; from health care management to international health and human rights.



Post a Comment

Featured Products From the ProHealth Store
FibroSleep™ Optimized Curcumin Longvida® 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

Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid

Natural Remedies

How Glutathione Can Save Your Life How Glutathione Can Save Your Life
Mitochondria-Booster NIAGEN® Shows Promise in First Human Clinical Trial Mitochondria-Booster NIAGEN® Shows Promise in First Human Clinical Trial
Cell-Charging Compound Gives Steady Energy to Fibromyalgia & Chronic Fatigue Patients Cell-Charging Compound Gives Steady Energy to Fibromyalgia & Chronic Fatigue Patients
Magnesium + Malic Acid: One-Two Punch for Pain & Fatigue Magnesium + Malic Acid: One-Two Punch for Pain & Fatigue
Ubiquinol - A More Advanced Form of the Energy Producing Nutrient CoQ-10 Ubiquinol - A More Advanced Form of the Energy Producing Nutrient CoQ-10

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