Laser treatment reduces scarring after heart attack

HAIFA, Israel and NEW YORK, N.Y., April 16, 2001 - Low-energy laser irradiation may reduce the severity of scarring of heart tissue caused by a heart attack, according to a study by researchers from the Technion-Israel Institute of Technology.

Low-energy laser irradiation has been shown to reduce biological "overreaction" to trauma in cell cultures and animal studies, but this study is among the first to explore its effect on alleviating some of the damaging effects of heart attacks. The results of the study were published in Circulation (January 16, 2001).

Other studies have focused on the use of drugs, growth factors and various intervention strategies in reducing myocardial infarct size and improvement of heart function after a heart attack. But low-energy laser irradiation seems to lessen the severity of a heart attack by increasing mitochondrial respiration and ATP, the major source for cellular energy production. The increase of both biological processes improves the cellular response to wounds, promoting healing and muscle regeneration after injury.

Mitochondria are rod-like structures in the cytoplasm, the substance of the body of the cell in which most cell activities occur. Mitochondria serve as the center of cellular enzyme activity.

In the study, researchers induced heart attacks in 50 dogs and 26 rats, half of whom received direct laser irradiation on the heart muscle after the chest was opened. Five to six weeks later, the animals were euthanized and the size of their infarcts, the areas of tissue death caused by a lack of oxygen, were examined. The laser treatment significantly lowered mortality from 30 percent to just 6.5 percent in the dogs after the induction of myocardial infarction.

"Our study demonstrated that the mortality rate was much lower in dogs treated with low-energy laser following myocardial infarction, compared with the control group," said Technion researcher Gal Hayam. "Pathologic examinations also revea

Contact: Adar Novak
American Society for Technion - Israel Institute of Technology

Page: 1 2

Related biology news :

1. Laser technique used to build micro-polymeric structure on a human hair, without harming it
2. Laser technology to map industrial plant gases available through Alberta Research Council
3. Lasers create new possibilities for biological technology
4. Laser micro-scalpel yields biological insights into tissue dynamics
5. Laser-pulse technique could aid drug design
6. Researchers at Vanderbilts Free-Electron Laser Center are developing new forms of laser surgery, improved X-ray technology, and better methods for protein identification
7. Laser technique examines movement in nucleus of living cell
8. Laser surgery halts chest pain over the long-term; scientists also looking into non-surgical TMR
9. Lasers to the aid of embryos
10. Laser light from Free-Electron Laser used for first time in human surgery
11. Laser Microscope At Cornell Images Serotonin In Live Cells

Post Your Comments:

(Date:12/4/2019)... ... December 04, 2019 , ... Cartessa ... Subnovii Advanced Plasma Technology for U.S. dermatologists, plastic surgeons and licensed aesthetic ... plasma to employ LF technology – low frequency plus a patented wavelength and ...
(Date:11/27/2019)... (PRWEB) , ... November 26, 2019 , ... Personalized ... event put on by the Arthritis Foundation and hosted by Dr. Steven Sampson and ... event, which took place on October 23, 2019, highlighted the ongoing efforts to promote ...
(Date:11/19/2019)... ... November 19, 2019 , ... Project Lifeline – a community ... Foundation to address substance use disorder (SUD) – will take center stage ... led to the program’s effectiveness in preventing and treating opioid abuse in Blair County, ...
Breaking Biology News(10 mins):
(Date:11/27/2019)... , ... November 25, 2019 , ... ... has announced the company’s first robotic-assisted and navigated surgery in the UK. The ... (NHS) by acclaimed spine surgeons, Dr. Syed Aftab and Dr. Alexander Montgomery. The ...
(Date:11/22/2019)... ... November 21, 2019 , ... Lajollacooks4u is preparing for another busy holiday ... already scheduled several of its popular cooking classes and team-building events, but the company ... company’s Holiday Parties have been a favorite for companies of all sizes since 2008. ...
(Date:11/19/2019)... ... November 19, 2019 , ... Supercomputing Conference ... learning infrastructure solutions for Autonomous Vehicle , Medical Imaging, and Natural Language ... systems with the Graphcore Poplar® software stack as part of its bare-metal cloud ...
(Date:11/12/2019)... , ... November 12, 2019 ... ... enterprise software solutions for biopharmaceutical R&D, today announced that Immatics Biotechnologies ... adopted Genedata Biologics® to streamline their R&D operations related to ...
Breaking Biology Technology:
Cached News: