Posts Tagged ‘carrier’
Cedars-Sinai Heart Institute researchers have reprogrammed ordinary heart cells to become exact replicas of highly specialized pacemaker cells by injecting a single gene (Tbx18) – a major step forward in the decade-long search for a biological therapy to correct erratic and failing heartbeats.
“Although we and others have created primitive biological pacemakers before, this study is the first to show that a single gene can direct the conversion of heart muscle cells to genuine pacemaker cells. The new cells generated electrical impulses spontaneously and were indistinguishable from native pacemaker cells,” said Hee Cheol Cho, PhD., a Heart Institute research scientist.
Pacemaker cells generate electrical activity that spreads to other heart cells in an orderly pattern to create rhythmic muscle contractions. If these cells go awry, the heart pumps erratically at best; patients healthy enough to undergo surgery often look to an electronic pacemaker as the only option for survival…
But the Cedars-Sinai researchers, employing a virus engineered to carry a single gene (Tbx18) that plays a key role in embryonic pacemaker cell development, directly reprogrammed heart muscle cells (cardiomyocytes) to specialized pacemaker cells. The new cells took on the distinctive features and function of native pacemaker cells, both in lab cell reprogramming and in guinea pig studies.
For his work on biological pacemaker technology, Cho, the article’s last author, recently won the Louis N. and Arnold M. Katz Basic Research Prize, a young investigator award of the American Heart Association.
More studies ready to go on the safety and effectiveness of the procedure. Then, human volunteer trials. Hope for lots of folks.
A technology startup backed by Google has unveiled the world’s first personal base station for international travelers, enabling them to cut roaming fees and make mobile calls like in a home country. Ubiquisys said the timing of devices reaching consumers depended on telecoms operators and it was in talks with several operators.
The telecom network base station, which is plugged into the travelers computer, is slightly larger than a smartphone, and needs an Internet connection…
The new device, called attocell, is designed for use with Apple’s iPhone, but it works also with Google’s Android phones, RIM’s Blackberry and Nokia’s smartphones.
Ubiquisys is one of the top firms in the new market for femtocells — small, low-power indoor base station for 3G mobile phone networks — enabling operators who struggle with network capacity to improve indoor coverage at a much lower cost…
The devices are plugged into a customer’s broadband Internet connection, like a wireless Internet base station, and allow users to make calls or use data services with their regular 3G mobile phones.
Phone service providers generally end up charging you their regular rates – even for home use. Home femtocells are especially useful for folks with mediocre service, insufficient tower coverage. This truly portable device seems like it should be a hit with business travelers.
In fact, there probably is a market for vacationers renting something like this to carry along on holiday.