Navigation Links
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 dose i
'"/>

Source:NIH/National Institute of Environmental Health Sciences


Page: 1 2

Related biology news :

1. Major new UNC-based drinking water study suggests pregnancy fears may be overstated
2. Ultrasounds show mothers drinking shrinks fetal brain
3. Brains can recover from alcoholic damage but patients should stop drinking as soon as possible
4. New UD technology removes viruses from drinking water
5. Anti-bacterial additive widespread in U.S. waterways
6. Unprecedented water level rise in Somalia
7. Microbial fuel cell: High yield hydrogen source and wastewater cleaner
8. Survey finds silver contamination in North Pacific waters
9. Researchers discover underwater volcano
10. Too much water may be as dangerous as too little during long-distance athletic events
11. Radio-tracking associated with dramatic shift in water vole sex ratio
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Hexavalent chromium drinking water causes cancer lab animals

(Date:9/15/2014)... in the Department of Science and Technology in Society ... at Virginia Tech, has won a 2014 National Science ... prospects and problems of creating a global nuclear emergency ... I Nuclear Power Plant in March 2011 was a ... emergencies, Schmid said. Three of the plant,s six nuclear ...
(Date:9/15/2014)... the oceans, there must be enough dissolved oxygen ... oxygen-starvation produces "dead zones" that decimate marine fisheries ... levels decline, energy is increasingly diverted away from ... impacts on the ecology and biogeochemistry of the ... minimum zones (OMZs) have expanded due to climate ...
(Date:9/15/2014)... and cognitive function may play roles in one,s musical ... pitch, timbre, tone durations, and formal structure in music. ... explain that extremes in musical aptitude (extreme capacity/no capacity) ... individuals having moderate aptitude. , "This is a typical ... genes, and it is influenced to varying degrees by ...
Breaking Biology News(10 mins):'Nuclear disasters don't respect national boundaries' 2Decoding virus-host interactions in the oxygen-starved ocean 2Decoding virus-host interactions in the oxygen-starved ocean 3Decoding virus-host interactions in the oxygen-starved ocean 4Decoding virus-host interactions in the oxygen-starved ocean 5
... Established in 2007 and based in Toronto, ArcticDx has ... kind and specifically designed to determine one,s inherited risk ... of acquired blindness in the developed world, affecting over ... investment to undertake studies in support of a planned ...
... One of the many advantages of maintaining a normal body ... healthy heart. Fat tissue is increasingly seen as more than ... organ that normally produces high levels of a cardioprotective hormone ... has long been a mystery, and now a team led ...
... the Morrison Natural History Museum have again discovered infant ... near the town of Morrison. Dating from the Late ... made before the Rocky Mountains rose, when Morrison was ... tracks represent infant sauropods, according to discoverer Matthew Mossbrucker, ...
Cached Biology News:OGI invests in personalized medicine for age-related macular degeneration 2Study finds fat hormone's long-sought link to heart protection 2Morrison Natural History Museum discovers baby sauropod tracks 2Morrison Natural History Museum discovers baby sauropod tracks 3
(Date:9/14/2014)... UMBC’s Biotechnology Graduate Programs’ Virtual ... 2014, from 12:00 to 1:00 p.m. EDT. The session ... and practice-oriented instruction, designed for working professionals. Participants will ... their career in the biotechnology industry. , If interested ... About UMBC’s Biotechnology Graduate Programs, UMBC offers a variety ...
(Date:9/13/2014)... Boehringer Laboratories Inc., with a forty year history ... successful broadcast of a live surgery by St. Luke’s ... FAMBS, and Maher El Chaar, MD, FACS, FAMBS, using ... This sleeve gastrectomy surgery was performed and broadcast live ... surgeons from around the world during the 5th International ...
(Date:9/12/2014)... Advancing the front lines of ... and biological threats is the mission of an ... (WPI) and the Georgian National Academy of Sciences, ... and Security Programme of the North Atlantic Treaty ... Workshop series, the event is titled “Nanotechnology to ...
(Date:9/12/2014)... On Thursday, September 11, 2014, the ... Industrial Average finished the day 0.12% lower at 17,049.00, and ... were broad based as seven out of ten sectors ended ... Index ended the day at 741.83, down 0.33%, while the ... has initiated coverage on the following equities: Exelixis Inc. (NASDAQ: ...
Breaking Biology Technology:UMBC Biotechnology Graduate Programs’ Virtual Info Session, October 21, 2014 2Boehringer Laboratories, Inc. Announces Live Surgery Using Innovative System to Calibrate Sleeve Gastrectomy 2Worcester Polytechnic Institute to Lead Scientific Workshop on Nanoscale Defenses for Biological and Chemical Threats 2Worcester Polytechnic Institute to Lead Scientific Workshop on Nanoscale Defenses for Biological and Chemical Threats 3Technical Coverage on Biotech Stocks - Exelixis, Arena Pharma, Novavax, Dendreon, and Amicus Therapeutics 2Technical Coverage on Biotech Stocks - Exelixis, Arena Pharma, Novavax, Dendreon, and Amicus Therapeutics 3Technical Coverage on Biotech Stocks - Exelixis, Arena Pharma, Novavax, Dendreon, and Amicus Therapeutics 4Technical Coverage on Biotech Stocks - Exelixis, Arena Pharma, Novavax, Dendreon, and Amicus Therapeutics 5
... WILL BE FOR USE IN POINT-OF-CARE BONE MARROW PROCESSING, ... KOOL ), a leading supplier of innovative products ... said it has,received authorization from the FDA to begin ... laboratory setting or intraoperatively,for preparation of a cell concentrate ...
... water through point-of-use ... ultrafiltration, NEW ... device company, announced today that it will be exhibiting its,Dual Stage ... Technical Exhibition in National Harbor,Maryland, July 20th-23rd, 2008. Building on the ...
... July 14 Phlo Corporation,(Pink Sheets: PHCP) (the ... California of its vitality beverage, AQISS(TM),will be significantly ... of,the largest specialty beverage distributors in the San ... reached an agreement in principal with Morris,Distributing providing ...
Cached Biology Technology:ThermoGenesis Announces FDA Authorization to Market MarrowXpress(TM) (MXP(TM)) 2ThermoGenesis Announces FDA Authorization to Market MarrowXpress(TM) (MXP(TM)) 3ThermoGenesis Announces FDA Authorization to Market MarrowXpress(TM) (MXP(TM)) 4Nephros Exhibiting at Maryland Ashe Conference July 20th-23rd 2Nephros Exhibiting at Maryland Ashe Conference July 20th-23rd 3Nephros Exhibiting at Maryland Ashe Conference July 20th-23rd 4Phlo Affiliate Announces Significant Distribution Expansion In California 2
Acrylamide, 500 g. Assay: > 99.9%, acrylic acid: < 0.001%. Conductivity (35%): < 2 umhos/cm.Risks: 45, 46, 48, 23, 24, 25 ; Safety Precautions: 53, 44. Category: Nucleotides & Enzymes & Biochemicals...
Direct ELISA Assay Diluent - EDTA, 10 L...
... gel electrophoresis into an automated, high-throughput operation ... pre-cast system is ideal for analyzing multiple ... more. Fully automated, robot-compatible, and ready to ... makes your high-throughput screening assignments as easy ...
SpectroQuest single beam 4nm UV/Vis spectrophotometer; stand-alone unit; large angled LCD screen; large sample compartment...
Biology Products: