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:10/22/2014)... SAN JOSE, Calif. , Oct. 20, 2014 /PRNewswire/ ... with the United States Air Force Research Laboratory (AFRL), ... for Integrative Medicine (AzCIM) at the University of Arizona ... to receive research funding.  The AzCIM project,s goal is ... their ability to collect different volumes of sweat under ...
(Date:10/18/2014)... referred for evaluation of suspected genetic conditions, whole-exome ... percent, including detection of a number of rare ... according to a study appearing in JAMA ... with the American Society of Human Genetics annual ... coding regions of thousands of genes simultaneously using ...
(Date:10/17/2014)... To date, antidotes ... doctors are often limited to supportive therapy such as induced ... of drugs involved. So what can be done if a ... professor Jean-Christophe Leroux from the Institute of Pharmaceutical Sciences at ... "The task was to develop an agent that could eliminate ...
Breaking Biology News(10 mins):Nano-Bio Manufacturing Consortium Selects Project Proposed by Arizona Center for Integrative Medicine to Optimize Human Performance Monitoring Techniques 2Nano-Bio Manufacturing Consortium Selects Project Proposed by Arizona Center for Integrative Medicine to Optimize Human Performance Monitoring Techniques 3Whole-exome sequencing shows potential as diagnostic tool 2Emergency aid for overdoses 2Emergency aid for overdoses 3
... to honey bees, neuropeptides control brain activity and, hence, our ... of a honey bee will assist researchers in understanding the ... a million neurons in the brain of a honey bee ... of the period at the end of this sentence. The ...
... that controls the colour of apples ?a discovery that may ... in apple skin is the result of anthocyanins, the natural ... flowers and fruits," says the leader of the CSIRO Plant ... a very important part of fruit marketing," she says. "If ...
... half the animal species on the planet has been re-drawn ... four major groups of insects. , Scientists have ... beetles and more distantly related to bees and wasps, contrary ... in the special Honey Bee Genome issue of the journal ...
Cached Biology News:Scientists identify 36 genes, 100 neuropeptides in honey bee brains 2Found -- the apple gene for red 2New genetic analysis forces re-draw of insect family tree 2
(Date:10/20/2014)... ON , Oct. 20, 2014 /PRNewswire/ - BIOREM Inc. (TSXV: ... $1.7 million which brings Q3 orders to $5.8 million and provides ... control projects in North America and one ... continue to bid new projects at record levels," said Peter ... were higher at the end of Q3 than they have been ...
(Date:10/20/2014)... October 20, 2014 OncLive® ... Kimmel Cancer Center at Thomas Jefferson University has ... Through the Strategic Alliance Partnership program, the Sidney ... collaborate to raise awareness of the Center’s cutting-edge ... other projects. Clinicians and other health care professionals ...
(Date:10/19/2014)... 20, 2014 OCTOBER 20-22, ... (ABIM). ABIM will take place at ... about ABIM 2014 is now available at ... representing companies and organizations from all over ... information on the latest products and developments ...
(Date:10/19/2014)... The Asia-Pacific Speech Analytics market report defines ... analysis and forecast of revenue. This market is estimated ... million by 2019, at a Compound Annual Growth Rate ... through the TOC of the Asia-Pacific Speech Analytics market ... provided. It also provides a glimpse of the segmentation ...
Breaking Biology Technology:Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 2The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 4
... , , , ... BioLife Solutions, Inc. (OTC Bulletin Board: BLFS), a leading ... and organs, today announced the launch of its BloodStor biopreservation ... for cryopreservation of umbilical cord blood stem cells, as well ...
... , , , FREDERICK, Md., Aug. ... Scientist Magazine,s 2009 Top 30 Best Places to Work ... those companies with the most positive work environment, dedicated management, and innovative ... Places to Work Industry award for biotech and pharmaceutical companies. ...
... , , , ... Aug. 28 Avid Bioservices, Inc., a leading provider of cGMP contract ... further strengthened its executive team with the appointments of Truc Le as ... These additions reflect Avid,s recent successes in expanding its customer base ...
Cached Biology Technology:BloodStor(TM) Stem Cell Biopreservation Media Platform Launched by BioLife Solutions 2BloodStor(TM) Stem Cell Biopreservation Media Platform Launched by BioLife Solutions 3SABiosciences Ranked 17th on the Best Places to Work Industry Award for Biotech and Pharmaceutical Companies 2Avid Bioservices Expands Executive Team as it Prepares for Continued Growth 2Avid Bioservices Expands Executive Team as it Prepares for Continued Growth 3Avid Bioservices Expands Executive Team as it Prepares for Continued Growth 4Avid Bioservices Expands Executive Team as it Prepares for Continued Growth 5
... a tetramethylrhodamine-conjugated jetSI-ENDO (excitation at ... nm), the powerful siRNA transfection ... to determine the transfection efficiency ... and trafficking of siRNAs. More ...
... movement counts, similar to an infrared beam break ... subjects at once, in two frames of reference, ... experimental group at once, and allow social interaction ... a variety of other spatial behavior situations, including ...
... a score of movement counts, similar to an ... up to 6 subjects at once, in two ... Can outpt a sync pulse to coordinate with ... animal location and timing information to control arena ...
... features of Tracker, plus software to note when ... of the arena, and trigger a penaltyThe Spatial ... built around a video camera, frame grabber, and ... fields at once and up to 6 moving ...
Biology Products: