HOME >> MEDICINE >> NEWS
Iron particles and MRI could replace biopsies to track stem cell therapy and deploy stents

one. Measurements of the heart's pumping function also improved in the same region.

"Our results show that MRI tracking of mesenchymal stem cells can be used - as a replacement to surgical biopsy - to verify that such cell-based therapies reached damaged areas of the heart and were able to effect repair and improve heart function," says study senior co-investigator Jeff Bulte, Ph.D., an associate professor in radiology at Hopkins who developed the labeling method.

In other experiments in rabbits and dogs, the researchers successfully used the IRON method, which was developed at Hopkins, to track relatively small numbers of stem cells in the body and to deploy a metallic stent, a mesh-like device that opens blood vessels narrowed by fat and calcium buildup.

"Physicians must confirm that potential therapies, whether they are cell based or involve devices, are delivered as planned to the targeted organ or other part of the body," says lead investigator Wesley Gilson, Ph.D., a postdoctoral research fellow at Hopkins. Gilson's work was recognized at the heart meeting, where he was a finalist for the prestigious Melvin Judkins Young Clinical Investigator Award.

With IRON, conventional MRI technology is adapted to reveal images of ever smaller numbers of cells, avoiding image artifacts that mimic the appearance of iron-labeled cells.

Scientists were able to visualize metal objects, which previously appeared as dark spots on the MRI screen, by suppressing the vast majority of the conventional image produced from water molecules (or so-called on-resonant signal), the most common substance in the body.

By eliminating the water-based signals, the scientists were left only with the signal produced from metal objects (or so-called off-resonant signal), such as prosthetic screws, metal clips or stents.

In effect, Gilson says, the machine was made sensitive to iron molecules in the formerly unseen region. "We effect
'"/>

Contact: David March
dmarch1@jhmi.edu
410-955-1534
Johns Hopkins Medical Institutions
2-Dec-2005


Page: 1 2 3 4

Related medicine news :

1. Targeted nanoparticles incorporating siRNA offer promise for cancer treatment
2. Impact of a chemical component of diesel exhaust particles
3. Nanoparticles can track cells deep within living organisms
4. U-M researchers use nanoparticles to target brain cancer
5. Details of solar particles penetrating the Earths environment revealed
6. Electric jolt triggers release of biomolecules, nanoparticles
7. NYU researchers decorate virus particles, showing potential to enhance MRI capabilities
8. Beyond the hype and the scare stories, how safe are nanoparticles?
9. MIT nanoparticles may help detect, treat tumors
10. Nano-particles effective in killing cancer with one-two punch of chemotherapeutics
11. Michigan State research sheds new light on health dangers of nanoparticles

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... Abilene, Texas (PRWEB) , ... October 13, 2017 , ... ... publication this week that explains one of the most popular and least understood books ... seems like cryptic and puzzling descriptions that have baffled scholars for centuries. Many have ...
(Date:10/13/2017)... ... 2017 , ... “America On The Brink”: the Christian history of the United ... the creation of published author, William Nowers. Captain Nowers and his wife, Millie, ... spent thirty years in the Navy. Following his career as a naval aviator ...
(Date:10/12/2017)... , ... October 12, 2017 , ... ... to meet the demand of today’s consumer and regulatory authorities worldwide. From Children’s ... experts and tested to meet the highest standard. , These products are ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... that we intend to develop to enable prevention of a major side effect ... hearing loss, especially in pediatric patients. For cisplatin, hearing loss is FDA listed ...
(Date:10/12/2017)... ... , ... On Saturday, October 21, the Health & Wellness Center at Florida ... money for the American Heart Association Heart Walk. Teams of up to 10 people ... keep their treadmills moving for 5 hours. Treadmills will start at 7:00 p.m. on ...
Breaking Medicine News(10 mins):
(Date:10/5/2017)...  In response to the nationwide opioid epidemic, ... (AAOMS) released prescribing recommendations that urge ibuprofen – ... a first-line therapy to manage a patient,s acute ... Recognizing the value and importance of the ... Acute and Postoperative Pain Management" stresses that practitioners ...
(Date:10/2/2017)... , Oct. 2, 2017  Eli Lilly and ... financial results for the third quarter of 2017 on ... conference call on that day with the investment community ... The conference call will begin at 9 ... can access a live webcast of the conference call ...
(Date:9/28/2017)... Sept. 28, 2017 Cohen Veterans Bioscience and ... use of wearable and home sensors for real-time monitoring ... Signal Foundation, a nonprofit organization focused on disruptive health ... an affordable analytical system to record and integrate behavioral, ... ...
Breaking Medicine Technology:
Cached News: