Navigation Links
Scientists discover the mechanism of heart failure in fish exposed to oil spills
Date:2/14/2014

Think of an oil spill, and images of fouled beaches and oil-soaked seabirds come to mind. But there are less visible effects as well. For instance, even low levels of oil pollution can damage the developing hearts of fish embryos and larvae, reducing the likelihood that those fish will survive. Scientists have known of this effect for some time, but the underlying mechanism has remained elusive.

Recently, researchers from NOAA Fisheries partnered with a team from Stanford University to discover how oil-derived chemicals disrupt the normal functioning of the heart muscle cells of fish. In an article in the February 14 issue of Science, they describe how polycyclic aromatic hydrocarbons, or PAHsa class of compounds prevalent in oilcan disrupt cardiac function in young bluefin and yellowfin tuna by blocking ion channels in their heart muscle cells.

The new findings are part of the Natural Resource Damage Assessment conducted by NOAA and other federal and state trustee agencies following the 2010 Deepwater Horizon oil spill in the Gulf of Mexico. That spill occurred across a large region where the Western stock of Atlantic bluefin tuna spawn, raising the possibility that the eggs and larvae of this valuable species were exposed to crude oil. Natural Resource Damage Assessments are used to determine liabilities after a spill and to help develop restoration plans.

"We've known that oil causes problems with the hearts of developing fish based on research following the Exxon Valdez oil spill," said Nat Scholz, one of the authors of the paper and the leader of the Ecotoxicology Program at NOAA's Northwest Fisheries Science Center in Seattle. "Now that we better understand the precise mechanism, we can develop more subtle and sensitive indicators of cardiac stress in fish embryos and larvae and more accurately assess the impact of pollution on our natural resources," Scholz said.

Oil Compounds Block Ion Channels in Cardiac Muscle Cells

W
'/>"/>

Contact: Rich Press
rich.press@noaa.gov
NOAA National Marine Fisheries Service
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
2. Queens scientists seek vaccine for Pseudomonas infection
3. Scientists produce eye structures from human blood-derived stem cells
4. American Society of Plant Biologists honors early career women scientists
5. Brandeis scientists win prestigious prize for circadian rhythms research
6. Scientists discover new method of proton transfer
7. Salk scientists open new window into how cancers override cellular growth controls
8. WileyChina.com - Now Featuring Bespoke Pages for China’s Life Scientists
9. Scientists win $2 million to study new pathway in development and maintenance of lymphoma
10. UGA scientists reveal genetic mutation depicted in van Goghs sunflower paintings
11. Genetic mutation depicted in van Goghs sunflower paintings revealed by scientists
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists discover the mechanism of heart failure in fish exposed to oil spills
(Date:8/29/2014)... has been known about what genetic changes transform wild ... one of whom is a University of Montana assistant ... controlling the development of the brain and the nervous ... was published Aug. 28 in Science and ... at http://www.sciencemag.org/ ., The domestication of animals and ...
(Date:8/29/2014)... researchers explored the type and number of connections in ... plays on robustness in a study published in ... found that the assortativity signature contributes to a network,s ... that varying the out-out assortativity of TFN models has ... the other three types of assortativity," said Dov A. ...
(Date:8/29/2014)... as the prolific bloomer Emiliania huxleyi , can ... The finding contradicts the common view that E. ... scarce supplies of thiamine in the ocean to survive. ... the ocean," says CIFAR Senior Fellow Alexandra Worden ... with CIFAR fellows John Archibald (Dalhousie University), ...
Breaking Biology News(10 mins):New research reveals how wild rabbits were genetically transformed into tame rabbits 2New research reveals how wild rabbits were genetically transformed into tame rabbits 3Assortativity signatures of transcription factor networks contribute to robustness 2Not all phytoplankton in the ocean need to take their vitamins 2Not all phytoplankton in the ocean need to take their vitamins 3
... Smart Search & Match,the leading provider of high-performance ... has joined the company as Product Marketing Manager. ... 15 years of product and marketing management,experience to ... many high-tech products and solutions worldwide. He has ...
... 2008 An international research team led by Tim ... the director of the School of Medicine,s Center for ... alternative splicing, the process by which single genes produce ... that curing the more than half of genetic diseases ...
... what they think may be a basic recipe for ... stem cells from essentially any mammal, including cows, pigs ... December 26th issue of the journal Cell , ... demonstrated to work in mice earlier this year, which ...
Cached Biology News:Case Western Reserve finds mechanism underlying alt. splicing of premessenger RNA into messenger RNA 2Case Western Reserve finds mechanism underlying alt. splicing of premessenger RNA into messenger RNA 3Recipe for capturing authentic embryonic stem cells may apply to any mammal, study suggests 2Recipe for capturing authentic embryonic stem cells may apply to any mammal, study suggests 3
(Date:8/28/2014)... “This kit has an improved extraction efficiency and provides users ... said Mark Tess, PhD, Mycotoxin Product Manager for Charm Sciences. ... USDA-GIPSA inspection agencies that have a need to detect aflatoxin ... a matter of minutes with nothing but our equipment and ... grain before accepting it, but they no longer have to ...
(Date:8/28/2014)... are important devices in spintronics, an electronic which ... electrons but also on their spin and the ... electric into magnetic signals and vice versa. Recently, ... the Institute of Physics at Johannes Gutenberg University ... Prague, and Japan, has for the first time ...
(Date:8/28/2014)... August 28, 2014 The ability for ... culture that will allow individuals to perform at the ... important for employers looking to compete in this post–recession ... embracing this trend, as the sector increasingly focuses on ... company, which will have real results on the organization's ...
(Date:8/28/2014)... 2014   SunTrust Robinson Humphrey (STRH) ... to its equity research team in biotechnology and ... in equity research demonstrates our commitment to providing ... enhance their investment decision making," said Biff ... continue to make significant investments in differentiated content ...
Breaking Biology Technology:A new, tunable device for spintronics 2A new, tunable device for spintronics 3Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 3SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 2SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 3
... 15, 2011 This evening, Novo Nordisk awarded sponsorships ... support programs that educate people living with type 2 ... reduce the risk of long-term diabetes related complications. The ... program – a new initiative that aims to promote ...
... 15, 2011 Roka Bioscience announced today that the ... certification of the Listeria Detection Assay. This evaluation is ... (AOAC-RI) certification of methods used in the food safety ... laboratory and monitored by AOAC. The internal portion of ...
... /PRNewswire-Asia/ -- ShangPharma Corporation (NYSE: SHP ... pharmaceutical and biotechnology research and development outsourcing company, ... leading Chinese pharmaceutical company, today announced that Shanghai ... and Hengrui have entered into a strategic partnership ...
Cached Biology Technology:Novo Nordisk and Atlanta Area Organizations Partner on Diabetes Education Programs 2Novo Nordisk and Atlanta Area Organizations Partner on Diabetes Education Programs 3Roka Bioscience Initiates External Trial for AOAC Certification 2ShangPharma Subsidiary and Jiangsu Hengrui Medicine Partner in Therapeutic Antibody Research and Development 2ShangPharma Subsidiary and Jiangsu Hengrui Medicine Partner in Therapeutic Antibody Research and Development 3
... Storage: The kit is stable for 12 months ... contents of the kit cold. , ,Principle: ... silica-gel based membrane which selectively adsorbs up to ... specialized binding buffers. Nucleotides, oligos ( , ,Application: ...
The Econo gradient pump rack is a preassembled rack that is used to hold the components of the Econo gradient pump kits....
... Leu DAP FLISP Assay with FAM-Labeled ... nm) • Accurately measure serine protease ... permeabilization • B-Bridge's FLISP Kits utilize ... proteases (FLISPs) to measure chymotrypsin-like activity ...
... instrument is the cycler that revolutionized ... uniformity and swappable blocks ensure consistent ... This rugged machine is more than ... for new features and upgrades as ...
Biology Products: