Navigation Links
Power of molecular imaging reveals secrets of the heart
Date:4/9/2008

Reston, Va.The extraordinary action of a new cellular therapy came to light as a result of powerful PET and SPECT imaging in a recent study reported in the April issue of the Journal of Nuclear Medicine. Researchers in Germany were able to observe the repair action of circulating progenitor cells (CPCs), immature blood-derived cells capable of developing into adult stem cells, as they successfully preserved healthy heart tissue and corrected blood flow imbalance within the heart.

Twenty-six patients took part in the randomized, placebo-controlled and double-blinded study. Following the recanalization of blocked coronary arteries (the surgical reopening or formation of new paths for blood flow), one group received an infusion of progenitor cells. FDG PET and 99mTc-tetrofosmine-SPECT were then used to image relative changes in myocardial perfusion (blood flow through the middle and thickest part of the heart) and glucose metabolism.

The results were compared with a control group that had undergone recanalization but did not receive CPCs. In the CPC group, normalization of glucose metabolism and coronary blood flow was seen in nearly 50 percent of the repaired artery segments.

PET and SPECT are the only techniques capable of validating the metabolic changes we needed to observe in the heart once we had administered the progenitor cells, said Kai Kendziorra, M.D., a specialist in Nuclear Medicine at the University of Leipzig in Leipzig, Germany. The results shown by these imaging modalities provide the evidence needed to expand the use of CPC treatment.

Earlier research has shown that when a patients progenitor cells are activated by growth factors, the result is increased cell division, which is vital to the tissue repair process. In this study, progenitor cells developed from circulating blood were also found to be capable of repairing dysfunctionalyet viablemyocardial tissue, a condition referred to as hibernating myocardium.

Kendziorra said he believes that in addition to assisting in monitoring and guiding treatment of heart patients, PET scans may also be helpful in selecting those who would profit the most from CPC administration.

Early detection of hibernating myocardial tissue via noninvasive imaging modalities such as PET and SPECT will help us to assess a patients myocardial metabolism and blood flow, he said. Subsequent early coronary recanalization and CPC administration may lead to treatment-specific normalization and reduce the risk of cardiac events over longer periods.

For decades, nuclear medicine imaging has contributed functional assessment to the anatomical definition of the presence or absence of disease, said Alexander J. McEwan, M.D., president of SNM. Today molecular imaging is on the way to revolutionizing patient careby integrating information about location, structure, function and biologyleading to a package of non-invasive imaging tools with enormous potential for improving patient care and outcomes.


'/>"/>

Contact: Kathryn Wiley
kwiley@snm.org
703-326-1184
Society of Nuclear Medicine
Source:Eurekalert

Related biology news :

1. The bombardier beetle, power venom and spray technologies
2. Continents loss to oceans boosts staying power
3. Wildcat Power Cord repairs cruciate ligament in dairy cows knee
4. Fujitsu Combines Capacity, Performance and Power Efficiency Into the Industrys First 320GB 7200 RPM 2.5" Sata Hard Disk Drive
5. The surprising power of the pill
6. Work with power grids leads to cell biology discovery
7. New twist on lifes power source
8. U of I researcher develops power-packed soy breakfast cereal
9. Genetic tags reveal secrets of memories staying power in mice
10. Powerful yet reliable proteomics techniques are the focus of a new methods book
11. Gene discovery made easier with powerful new networking technique
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/19/2017)... 19, 2017 Sensory Inc ., ... security for consumer electronics, and i ... and cybersecurity solutions, today announced a global partnership ... institutions worldwide to bolster security of data sensitive ... user authentication platforms they offer, innerCore now offers ...
(Date:1/12/2017)... Jan. 12, 2017  New research undertaken by Fit ... the future.  1,000 participants were simply asked which office technology ... we may consider standard issue.  Insights on what will ... also gathered from futurists and industry leaders including Penelope ... Canton .  Some of these findings ...
(Date:1/6/2017)... Colo. , Jan. 5, 2017  SomaLogic ... the "Digital Life Alliance" established by iCarbonX, the ... 2015 to build a "Global Digital Health Ecosystem ... on a combination of individual,s biological, behavioral and ... the agreement between the companies, SomaLogic will provide ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... , Jan. 18, 2017 The ... reach USD 92.9 billion by 2025, according to ... Pharmaceutical industry has been adaptive of the function ... early as 2002. Among the services outsourced, clinical ... For instance, Johnson & Johnson was the first ...
(Date:1/19/2017)... , Jan. 18, 2017 Acupath Laboratories, Inc., ... the formation of an Executive Committee that will guide ... John Cucci , a 15-year veteran ... Director of Business Development to Chief Sales Officer ... Cucci served in senior sales leadership roles at several ...
(Date:1/18/2017)... Portland, OR (PRWEB) , ... January 18, 2017 ... ... modules that provide essential device-to-computer interconnect using USB or PCI Express, announced the ... Altera Cyclone V E FPGA into a compact business-card sized form factor suitable ...
(Date:1/18/2017)... --  Boston Biomedical , an industry leader in the ... pathways, will feature data from two clinical studies for ... Gastrointestinal Cancers Symposium, held from January 19-21, in ... is an orally-administered investigational agent designed to inhibit cancer ... cells (CSCs) possess the property of stemness – the ...
Breaking Biology Technology: