Community
Products
Complications & Care
Food
Columns
Fitness
Medications
Research
Monitoring
Health Care
Psychology
Legal
Celebrities
Pregnancy
About Us
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT

Discuss this Topic in the Forum

See What's Inside…
  • Diabetes and Adoption

    Rachel and her husband chose to adopt a baby instead of meeting the challenges of handling a high risk pregnancy and Rachel’s type 1 diabetes at the same time. She shares their thought process and ultimate happy ending about the decision to bring a child into their lives.

  • Chris Matthews Makes Time for Diabetes

    Hosting Hardball on MSNBC and The Chris Matthews Show keep Chris Matthews working long hours. But Matthews got a lesson in priorities and made some life changes when he was diagnosed with type 2.

  • A Chihuahua with Diabetes

    Olivia and her dog both have diabetes and today they comfort and encourage each other through the rigors of dealing with the disease. Plus, find out what it means when your domestic pet is diagnosed with diabetes.

  • Smoking and Diabetes

    Smoking has severe effects on your diabetes and your health. Learn why diabetes and smoking are an especially bad combination and get some tips from the experts on how to quit.

  • Continuous Glucose Monitors

    CGM is a relatively new technology, but the information it provides is invaluable. Find out what CGM offers and whether it could help you.

See the entire table of contents here!

Free Subscription to Diabetes Health Professional

The must-have resource for physicians, educators and medical professionals who focus on the treatment of diabetes.

Finally! A fresh take on the “professional” journal. Each bi-monthly issue cuts through the jargon and presents the most important information you need to enhance your practice and assist your patients.

Each bi-monthly issue of Diabetes Health Professional is a self-contained handbook covering products, educational resources and the latest diabetes research, complimented by balanced editorial focused on medical news, drug prescription information, clinical practice recommendations and changing treatment options.

Each quarter we send you the latest, most updated research guides, product guides and educational resource guides available for you and your patients.

Learn More About the Professional Subscription

Diabetes Health E-Newsletter

Each week the Diabetes Health E-Newsletter delivers links to the very latest in news, reviews, blogs and videos from Diabetes Health direct to your inbox.

See an example E-Newsletter

As a subscriber you'll get access to the amazing Diabetes Health Digital Advantage™ so you can read the current issue of Diabetes Health magazine online wherever you are!

Email Address:
Area of Interest:
ADVERTISEMENT
Latest
Popular
Top Rated
Diabetes Health Reference Charts
Type 1 Issues Archives
ADVERTISEMENT
Print | Email | Share | Comments (0)

Students Invent a Protective Pouch to Hold Transplanted Beta Cells

Linda von Wartburg
Jul 23, 2007

A team of five seniors and two freshmen at Johns Hopkins University has devised a little "pouch" to hold microcapsules of beta cells in the portal vein, from which the cells can send out insulin while safely protected inside. It's made by sandwiching a porous cylinder of nylon mesh between two cylindrical metal stents, similar to the ones that are used to keep clogged blood vessels open.

The pouch is inserted into the abdomen from the femoral vein in the leg. First the compressed outer stent is threaded into the portal vein, where it pushes out on it harmlessly. Then the inner stent, surrounded by the nylon mesh cylinder, is compressed and inserted. Once in place, the inner stent snaps back to its original shape and the nylon mesh is held snugly against it.

Semi-permeable alginate microcapsules containing beta cells are injected into the space between the two metal stents, where they become trapped within the nylon mesh. The alginate microcapsules protect the cells from attack by the immune system. The openings in the mesh are big enough to allow blood through but too small to allow the microcapsules to escape.

The blood flowing though the cylinder nourishes the encapsulated cells trapped within the mesh and circulates the insulin they produce. The device allows for the microcapsules to be removed and refilled as necessary.

The Johns Hopkins staff has applied for a patent, and animal testing is expected to begin this summer. If those trials are successful, human trials would be next.

Source: Johns Hopkins News Release


Categories: Medications, Professional Issues, Type 1 Issues


Donate to Diabetes Health
Recommend this :

Average Rating:


You May Also Be Interested In...