HOME >> BIOLOGY >> NEWS
Perchlorate found in dairy and breast milk samples from across the country

In a new study of breast milk and store-bought milk from across the United States, scientists at Texas Tech University found perchlorate in every sample but one. The results suggest that this thyroid-disrupting chemical may be more widespread than previously believed.

The report was published Feb. 22 on the Web site of Environmental Science & Technology, a peer-reviewed journal of the American Chemical Society, the world's largest scientific society.

Perchlorate occurs naturally and is also a primary ingredient in solid rocket fuel. The chemical, which has been showing up in many segments of the environment, can interfere with iodide uptake in the thyroid gland, disrupting adult metabolism and childhood development.

The researchers, led by Professor Purnendu Dasgupta, Ph.D., of the university's department of chemistry and biochemistry, analyzed 47 dairy milk samples purchased randomly from grocery stores in 11 states, and 36 breast milk samples from women recruited at random in 18 states. Every sample of breast milk contained perchlorate, and only one sample of dairy milk contained no detectable levels.

The average perchlorate concentration in breast milk was 10.5 micrograms per liter; the dairy milk average was 2.0 micrograms per liter. No definitive national standard exists, although the U.S. Environmental Protection Agency had suggested a limit of 1.0 micrograms per liter in drinking water.

The researchers also found that high levels of perchlorate correlated with low levels of iodide in breast milk, which can inhibit thyroid function in nursing womenan essential component for proper neural development of the fetus. Although the data are limited, the levels of iodide in this study are sufficiently low to be of concern, according to the researchers. They suggest that the recommended daily intake of iodine for pregnant and nursing women may need to be revised upwards.

The American Chemical Society is a nonprofi
'"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
22-Feb-2005


Page: 1 2

Related biology news :

1. Waters off Washington state only second place in world where glass sponge reefs found
2. First new multiple sclerosis gene found in 30 years
3. Obesity found to be a risk factor for multiple myeloma
4. Antibody-altering protein found in developing B cells
5. New use for a cell toxin found to inhibit survival proteins in cancer cells
6. New way to target and kill antibiotic-resistant bacteria found
7. Soil particles found to boost prions capacity to infect
8. Support for chromosomal theory of cancer found in cancers development of drug resistance
9. Massive herds of animals found to still exist in Southern Sudan
10. Origins of nervous system found in genes of sea sponge, report scientists at UC Santa Barbara
11. Origins of nervous system found in genes of sea sponge

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/23/2020)... THE WOODLANDS, Texas (PRWEB) , ... August 21, ... ... from Rigaku Corporation has been published and is now available ... on single crystal X-ray diffraction—serves the X-ray analysis community, presenting current news and ...
(Date:8/21/2020)... ... August 20, 2020 , ... NDA Partners Chairman Carl ... executive with expertise in clinical trial planning and feasibility, regulatory inspection readiness, and ... Throughout his career, Mr. Movahhed has helped design and manage oncology, neurology, cardiovascular, ...
(Date:8/7/2020)... ... August 06, 2020 , ... Nine middle school teachers from ... Program, a unique professional development program that provides advanced STEM (science, technology, engineering ... teachers nationwide. , Created in partnership between the National Stem Cell Foundation and ...
Breaking Biology News(10 mins):
(Date:8/3/2020)... ... August 03, 2020 , ... ... Corrigan, President and CEO has been named one of the 100 most inspiring ... sectors, PharmaVoice 100 honorees are selected based on how they have inspired their ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... combine up to three different materials for use with CRM, neurostimulation, vascular, and ... three materials to meet specific design requirements, performance, and cost criteria; especially where ...
(Date:7/22/2020)... , ... July 22, 2020 , ... Join experts from ... Lorenc, Sr. Manager Regulatory Solutions, in a one hour live webinar on ... regulating body in China for drugs and medical devices. Specifically, for medical devices, the ...
(Date:7/10/2020)... ... July 08, 2020 , ... ... announces a significant expansion of laboratory operations through its COVID-19 testing service, ... testing programs. , Bode-CARES provides a turnkey solution that includes ...
Breaking Biology Technology:
Cached News: