Stanley Baker can’t remember feeling quite so free in a very long time.
Baker
is one of 52 people ages 12 and older with Type 1 diabetes who for five
days tested in real-world settings a “bionic pancreas,” designed to
take over the job of providing insulin on a minute-by-minute basis when
the body’s real organ fails.
“This totally relieves you of managing the diabetes,” said Baker, 76, of Ipswich, Massachusetts. “It was extremely liberating.”
The
mechanical device worn outside the body was designed by Edward Damiano,
a Boston University engineer who has worked on the technology ever
since his 15-year-son was diagnosed with diabetes as an infant. It kept
patients at near normal levels in two trials and prevented dangerous
blood sugar drops better than standard therapy, according to a report
Sunday at the American Diabetes Association meeting in San Francisco.
It
is among the first tests of such a system outside of a tightly
controlled setting, according to Damiano, who said the investigators are
starting a new, larger trial in four cities Monday and plan to have an
improved version of the device on the U.S. market by the end of 2017.
The
bionic pancreas is composed of five parts connected externally to one
another and the body. It includes two pumps attached to the abdomen to
deliver hormones, a glucose monitor with a wire that runs just under the
skin and a computer program that calculates proper doses in a
closed-loop system.
Adults using the device, which checks
their blood every five minutes, roamed Boston unfettered, eating and
exercising normally, ignoring the condition that typically weighs on
their daily activities. Adolescents younger than 20 given the technology
were attending a diabetes summer camp. Both groups were closely
monitored 24 hours a day.
“There’s no current
standard-of-care therapy that could match the results we saw,” said
Damiano. The results were simultaneously published in the New England
Journal of Medicine.
About 3 million Americans have Type 1
diabetes, in which the pancreas stops secreting the hormone insulin
used to convert food into energy. Patients typically test their blood
several times a day to measure glucose levels, then calculate the amount
of insulin they need to inject based on their diet and exercise. High
blood sugar can lead to organ damage and death, while too little can
trigger unconsciousness or a coma.
The device isn’t being
tested on people with the more common Type 2 diabetes, which typically
develops in adults and is linked to a sedentary lifestyle. People with
Type 2 produce insulin, though their bodies don’t use it properly.
The
researchers used commercially available equipment, including a glucose
monitor from Dexcom and two pumps. They crafted their own computer
algorithm and ran it on an iPhone 4 to wirelessly connect the component
parts and calculate how much of each hormone the patient needed.
“It’s constantly adapting to the patient’s ever-changing insulin needs,” said Damiano, who built the device with a colleague.
Other companies, including Medtronic and Johnson & Johnson, are working on similar products.
The
bionic pancreas tested by the Boston researchers goes further, by
constantly measuring blood-sugar levels and predicting the amount of
insulin needed.
It is unique because it also administers glucagon, another hormone that causes the liver to release glucose.
THIS IS ONLY FOR INFORMATION, ALWAYS CONSULT YOU PHYSICIAN BEFORE
HAVING ANY PARTICULAR FOOD/ MEDICATION/EXERCISE/OTHER REMEDIES.
PS- THOSE INTERESTED IN RECIPES ARE FREE TO VIEW MY BLOG-
HTTP:GSEASYRECIPES.BLOGSPOT.COM/
FOR INFO ABOUT KNEE REPLACEMENT, YOU CAN VIEW MY BLOG-
HTTP://KNEE REPLACEMENT-STICK CLUB.BLOGSPOT.COM/
FOR CROCHET DESIGNS
HTTP://MY CROCHET CREATIONS.BLOGSPOT.COM