HOME >> MEDICINE >> NEWS
Hexavalent chromium in drinking water causes cancer in lab animals

Researchers announced today that there is strong evidence a chemical referred to as hexavalent chromium, or chromium 6, causes cancer in laboratory animals when it is consumed in drinking water. The two-year study conducted by the National Toxicology Program (NTP) shows that animals given hexavalent chromium developed malignant tumors.

"Previous studies have shown that hexavalent chromium causes lung cancer in humans in certain occupational settings as a result of inhalation exposure," said Michelle Hooth, Ph.D., NTP study scientist for the technical report. "We now know that it can also cause cancer in animals when administered orally."

The study findings were announced at the National Institute of Environmental Health Sciences (NIEHS) after the NTP Board of Scientific Counselors Technical Reports Review Subcommittee completed its independent peer review of the sodium dichromate dihydrate research report. Sodium dichromate dihydrate is an inorganic compound containing hexavalent chromium that was used in the NTP studies. The NTP is located at the NIEHS, part of the National Institutes of Health.

Hexavalent chromium compounds are often used in electroplating, leather tanning, and textile manufacturing and have been found in some drinking water sources.

Male and female rats and mice were given four different doses of sodium dichromate dihydrate in their drinking water ranging from 14.3 mg/l to 516 mg/l for two years. The lowest doses given to the animals in the study were ten times higher than what humans could consume from the most highly contaminated water sources identified in California.

The researchers report finding significant increases in tumors at sites where tumors are rarely seen in laboratory animals. Male and female rats had malignant tumors in the oral cavity. The studies conducted in mice found increases in the number of benign and malignant tumors in the small intestine, which increased with
'"/>

Contact: Robin Mackar
rmackar@niehs.nih.gov
919-541-0073
NIH/National Institute of Environmental Health Sciences
16-May-2007


Page: 1 2

Related medicine news :

1. Binge drinking leads to neurocognitive deficits among college students
2. Moderate drinking lowers womens risk of heart attack
3. Curb the pocket money, curb the problem drinking
4. RAND study finds alcohol advertising and marketing associated with adolescent drinking
5. Binge drinking, gender and clinical depression
6. NYU Child Study Center expert offers tips to help curb teen binge drinking
7. Brains can recover from alcoholic damage but patients should stop drinking as soon as possible
8. Heavy, chronic drinking can cause significant hippocampal tissue loss
9. Friends have greater sway on college students beliefs on drinking behavior
10. Binge-drinking teenagers at greater risk of violence
11. Raising awareness of global drinking water crisis

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


(Date:2/24/2017)... ... February 24, 2017 , ... ... which specializes in thought leadership , media relations, social media, content marketing ... that will be powered through Act-On, an intuitive marketing automation platform. , Rosica ...
(Date:2/23/2017)... Boston, MA (PRWEB) , ... February 23, 2017 ... ... Education and Department of Justice jointly issued a letter to withdraw ... in accordance with their gender identity. The guidance issued in May 2016 by ...
(Date:2/23/2017)... Chapel Hill, NC (PRWEB) , ... February 23, 2017 , ... ... the Platinum Sponsor for ACPA’s 74th Annual Meeting. KLS is a longtime supporter ... in 2017 as an exhibitor and Platinum Sponsor," said Dr. Bob Havlik, 2017 ACPA ...
(Date:2/23/2017)... Mass. (PRWEB) , ... February 23, 2017 , ... ... as an approved content provider for the National Institute for Health and ... and social care-related organizations in the National Health Service (NHS) to search, order ...
(Date:2/23/2017)... ... February 23, 2017 , ... ERT, a global ... announced that Premier Research, a leading clinical development service provider, has selected ERT’s ... increasingly complex, due in part to an array of circumstances including the use ...
Breaking Medicine News(10 mins):
(Date:2/24/2017)... 2017 Following receiving ... , s AMAR is a major milestone for ... M w ound care market in ... BST for inclusion in the National Health Basket , ...   E-QURE Corp. (OTCQB: EQUR), a leader in medical ...
(Date:2/24/2017)... -- Research and Markets has announced the addition of the ... to their offering. ... latest research Dry eye Drugs Price Analysis and Strategies - 2016, provides ... The research answers the following questions: What ... How are they positioned in the Global Dry eye market? ...
(Date:2/24/2017)... Md. , Feb. 23, 2017 ... marketing of the PhenoTest BC Kit, performed on ... to identify organisms that cause bloodstream infections and ... likely to respond to (antibiotic sensitivity). The test ... to provide this important information, which can guide ...
Breaking Medicine Technology:
Cached News: