Navigation Links
Could a protein be linked to heart attacks?
Date:9/3/2014

OTTAWA, September 3, 2014 A team of researchers at the University of Ottawa Heart Institute, led by Dr. Alexandre Stewart, have uncovered an intriguing link between heart attacks and a protein that is of great interest to drug companies for its impact on cholesterol.

The team found that levels of the protein PCSK9 were elevated in the blood of patients having an acute heart attack, but not in those who never had a heart attack or who had recovered from one previously. The results were replicated in two separate groups of patients, all of whom have coronary artery disease but were not taking a cholesterol-lowering statin drug.

Published in the journal PLOS One, the findings point to an important question: "Are PCSK9 levels elevated shortly before you get a heart attack?" asks Dr. Stewart, principal investigator in the Ruddy Canadian Cardiovascular Genetics Centre at the Ottawa Heart Institute. "If levels only go up after, that would suggest a side effect of the heart attack. But if they go up before, that suggests it might trigger the event, or make it worse."

The Heart Institute researchers first identified the PCSK9 link to heart attacks using blood samples from patients enrolled in the Ottawa Heart Genomics Study. They then confirmed these results in a group of patients from Emory University in Atlanta, Georgia. Again, they found elevated PCSK9 levels in samples taken from patients at the time of acute heart attack, but not in samples taken from patients with a history of heart attack or from those with coronary artery disease who never had a heart attack.

The medical community and pharmaceutical companies are already highly interested in PCSK9 for its effects on LDL cholesterol. PCSK9 increases levels of LDL cholesterol in the bloodstream by reducing the ability of liver cells to remove and destroy it. Research indicates that blocking the effects of PCSK9 may offer a new way to substantially lower LDL cholesterol.

Several pharmaceutical companies have invested heavily in drugs to block PCSK9. The potential market is estimated to be in the billions of dollars because they lower cholesterol in a manner that is independent of the widely-prescribed statin drugs. In industry-sponsored clinical trials, these new drugs are looking to be effective in reducing LDL cholesterol levels. The link of PCSK9 to the event of a heart attack provides important new information about this protein that has seen such heavy investment.


'/>"/>

Contact: Vincent Lamontagne
vlamontagne@ottawaheart.ca
613-899-6760
University of Ottawa Heart Institute
Source:Eurekalert

Related biology news :

1. Heart-powered pacemaker could one day eliminate battery-replacement surgery
2. New test could help track down and prosecute terrorists
3. New antibiotic could make food safer and cows healthier
4. BPA could affect reproductive capabilities, cause infection of the uterus
5. Key to immune system disease could lie inside the cheek
6. New analysis of premature infants heartbeats, breathing could be cues for leaving NICU
7. Tiny electrical sensors could signal faster MRSA diagnosis
8. Corals could survive a more acidic ocean
9. Early warning system for seizures could cut false alarms
10. Rapid method of assembling new gene-editing tool could revolutionize genetic research
11. 800-year-old farmers could teach us how to protect the Amazon
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/7/2019)... , ... January 07, 2019 , ... ... and Artificial Intelligence solutions for precision health in oncology and other key therapeutic ... Morgan’s exclusive meeting of investors, entrepreneurs and executives spanning the entire healthcare landscape, ...
(Date:1/4/2019)... ... January 02, 2019 , ... ... noteworthy, as the life science tools and service supplier turned 40 in 2018 ... catalog. The catalog features not just part numbers like most catalogs, but rather, ...
(Date:12/27/2018)... ... December 27, 2018 , ... AxioMed ... its new Boston facility, and is now raising growth capital to ramp up ... market share against inferior ball and socket discs. The capital raise is targeted ...
Breaking Biology News(10 mins):
(Date:12/5/2018)... ... December 05, 2018 , ... STRmix™ – sophisticated forensic ... interpret – has been used to convict a Wyoming man of third-degree sexual assault, ... Laboratory used STRmix™ to test for DNA on the couch cushions on which the ...
(Date:11/29/2018)... , ... November 29, 2018 , ... RAGS, today announced ... by Kickstart Seed Fund, with participation from existing investor and board member Jeremy Andrus, ... Smith of Cotopaxi. The additional funding will enable the company to accelerate its growth ...
(Date:11/27/2018)... SANDY SPRINGS, Ga. (PRWEB) , ... November 27, 2018 , ... ... GA, can now visit Dr. Dan Myers’ practice for treatment, with or without a ... of cosmetic procedures and tools, including porcelain veneers, dental implants, bridges and custom crowns. ...
(Date:11/20/2018)... (PRWEB) , ... November 19, 2018 , ... ... pleased to announce the release of the Chinese translation of Best Practices: Recommendations ... 2018, is a practice-changing publication aimed at advancing the science of biobanking to ...
Breaking Biology Technology: