Navigation Links
Potent human toxins prevalent in Canada's freshwaters
Date:8/14/2012

Ottawa, Ontario (August 14, 2012) Nutrient pollution, one of the greatest threats to our freshwater resources, is responsible for the algal blooms that blanket our lakes and waterways in summer months. Large blooms of cyanobacteria ('blue green algae') can cause fish kills, increase the cost of drinking water treatment, devalue shoreline properties, and pose health risks to people, pets, and wildlife. A new paper just published in the Canadian Journal of Fisheries and Aquatic Sciences shows that microcystin, a toxin produced by cyanobacteria, is present in Canadian lakes in every province.

"Canadians enjoying their summer at the cottage need to know that those green scums of algae washing up on their beach are not only unsightly, but can also be a threat to their health and their children's health," says lead author, Diane Orihel, a researcher with the Department of Biological Sciences at the University of Alberta. "It's time to get serious about cleaning up the nutrients polluting our lakes."

Microcystins are well-established as potent liver toxins to humans and other mammals, and are classified as possible human carcinogens. "Blue-green algae present a growing health concern for domestic, agricultural and recreational water use in Canada and world-wide", warns Dr. David Kinniburgh, the Director of the Alberta Centre for Toxicology at the University of Calgary. "The microcystin toxins they produce can cause acute liver failure in humans and may even cause cancer with long-term exposure."

This study is the first to report on microcystin prevalence at a national scaledata from 246 bodies of water across Canada were collected. The authors determined that water quality was most at risk in lakes with the highest concentrations of nutrients. Nutrient-rich lakes and reservoirs, particularly in central Alberta and southwestern Manitoba, proved to have highest toxin concentrations, though all regions in Canada contained lakes tha
'/>"/>

Contact: Jenny Ryan
jenny.ryan@nrcresearchpress.com
613-949-8667
Canadian Science Publishing (NRC Research Press)
Source:Eurekalert

Page: 1 2

Related biology news :

1. Epigenetic signatures direct the repair potential of reprogrammed cells
2. New insight into mechanisms behind autoimmune diseases suggests a potential therapy
3. Interventional radiology: Potential breakthrough to treat mens enlarged prostate
4. Researchers report potential for a moderate New England red tide in 2012
5. Gallbladder shown as potential stem cell source for regenerative liver and metabolic disease
6. Researchers find potential dark side to diets high in beta-carotene
7. Beehive extract shows potential as prostate cancer treatment
8. Gene therapy for hearing loss: Potential and limitations
9. Folic acid food enrichment potentially protective against childhood cancers
10. Nuisance seaweed found to produce compounds with biomedical potential
11. Potential new approach to regenerating skeletal muscle tissue
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... People who suffer from asthma may think there,s not ... besides properly taking medications and avoiding allergic triggers. ... Annals of Allergy, Asthma and Immunology , the scientific ... Immunology (ACAAI), asthma sufferers can learn lessons about managing ... in the Annals article improved her asthma once she ...
(Date:9/29/2014)... species of gut bacteria called Clostridium ramosum , coupled ... The work is published this week in mBio , ... , A research team from the German Institute of ... gut bacteria including C. ramosum gained weight when ... C. ramosum were less obese even when consuming a ...
(Date:9/29/2014)... Plants have a symbiotic relationship with certain bacteria. ... and defend against invaders an important step ... Now, scientist have discovered that plants may package ... that sprouting plants are colonized from the beginning. ... presented their findings today at the 5th ASM ...
Breaking Biology News(10 mins):Asthma symptoms kicking up? Check your exposure to air pollution 2Gut bacteria promote obesity in mice 2Plants prepackage beneficial microbes in their seeds 2
... Marine Ecosystem during 2012 were the highest recorded in ... by NOAA,s Northeast Fisheries Science Center (NEFSC). These high ... trend of above average temperature seen during the spring ... elevated temperatures occurring in the Northwest Atlantic, but not ...
... brain, the cerebral cortex undergoes a marked expansion in ... folding of the tissue in species with most expanded ... a key regulator of this crucial process. Different ... performance of specific tasks. This in turn imposes particular ...
... of Houston engineering professor has won a grant from ... the most promising therapies for patients with the disease., ... engineering, received the Stewart Rahr-MRA Young Investigator Award. The ... a therapy that has helped melanoma patients who aren,t ...
Cached Biology News:Sea surface temperatures reach highest level in 150 years 2Sea surface temperatures reach highest level in 150 years 3Developmental neurobiology: How the brain folds to fit 2University of Houston engineering professor awarded grant to study melanoma treatment 2University of Houston engineering professor awarded grant to study melanoma treatment 3
(Date:10/1/2014)... (PRWEB) September 30, 2014 In ... cost-effective tools to address sales, training and consumer ... has developed innovative mobile applications to turn their ... the agency’s latest customized mobile app creations, are ... . , In partnership with Toyota, StudioPMG created ...
(Date:10/1/2014)... Francisco, California (PRWEB) October 01, 2014 ... from the National Science Foundation to expand their bioCAD/CAM ... to build and modify DNA. The Small Business Innovation ... commercialize the “j5” technology under exclusive license from the ... Joint BioEnergy Institute , an LBNL laboratory that ...
(Date:9/30/2014)... news release is available in German . ... crystal around several quantum dots in a semiconductor layer. Quantum ... consequence of atomic processes. If a short laser pulse is ... and the quantum dot experiences a change in the electromagnetic ... down the emission of light by the dot. As soon ...
(Date:9/30/2014)... Sept. 30, 2014 Pacific Northwest Biotechnology, ... Summary Global Markets Direct,s, ,Pacific Northwest Biotechnology, ... an overview of the Pacific Northwest Biotechnology, LLC,s ... provides comprehensive information on the current therapeutic developmental ... comparative analysis at various stages, therapeutics assessment by ...
Breaking Biology Technology:Digital Agency Studio PMG Launches New Case Studies on Website 2TeselaGen Receives $750k NSF SBIR Phase II Award 2TeselaGen Receives $750k NSF SBIR Phase II Award 3Ultrafast remote switching of light emission 2Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 2Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 3
... ARPN) announces today that it has received a ... Administration (FDA) regarding its New Drug,Application (NDA) for ... skin structure infections (cSSSI). The FDA indicated in ... iclaprim in its current form and,that additional clinical ...
... 19 /PRNewswire/ - Canada,s six genome centres demonstrated ... Annual Canadian Genomics Reception at the International Plant ... week. More than 150 researchers, funders and other ... of the informal networking event. , "This Canadian ...
... Algae is a livid green giveaway of nutrient pollution in ... tiny particles that would turn different colors if exposed to ... the blood. , Now, University of Florida engineering researchers have ... hurdle to creating such "smart dust.",The feat, which signifies a ...
Cached Biology Technology:FDA Issues Complete Response Letter for Iclaprim 2Researchers: Molecular forklifts overcome obstacle to 'smart dust' 2Researchers: Molecular forklifts overcome obstacle to 'smart dust' 3
... targets including proteins and to their modification ... antigens. A&Gs service is divided into ... 40 days (duration may vary slightly dependent ... I: Immunization, test bleed and fusion; $2,500 ...
... Clone/PAD: ZMD.460. Immunogen: Synthetic peptide ... human C35 protein (chromosome 17 open reading ... Specific for the C35 protein. On ... at ~15 kDa band. Reactivity: Human ...
... Peptide sequences: Two separate vials ... to the same sequence used as ... (Catalog No. 160890) ... Cayman's guanylate cyclase polyclonal antiserum (Catalog ...
Immunogen: Secretory component isolated from human colostrum. Storage: 4 C...
Biology Products: