Thursday, June 12, 2014

Human Retina Developed From Genetically  Reprogrammed Human Stem Cells




Retina grown from human stem cells


In new findings listing John Hopkins University School of Medicine in Baltimore published the creation of immature retina in dish from human stem cells. It is believed to be sensitive to lights that mean the cultured retina is sensing the light. That simply means one day in future this development will helps us to restore our vision.

Retinal cells are a type of photoreceptor which respond to lights. This is the first step of converting light in to images. Simply this photoreceptive retinal cell can be compared with the CMOS sensor of your digital camera. The researchers developed a 3D compliment of human retinal tissue in their lab. Induced pluripotent stem cells (iPS), which are adult cells that have been genetically reprogrammed back to their most primitive state. Such cells are capable of developing into most of the 200 cell types in the human body, the team explains, and for their latest study, they were able to turn them into retinal progenitor cells that form light-sensitive retinal tissue lining the back of the eye.

In the experiment, the cells growth resembles the fetus growth in stage and duration. When the cells growth period attained 28 week equivalent, the researchers tested the cell for its photo sensitivity to check whether these cells can sense and transform the light to visual signals. The team tested the retinas by putting an electrode into a single photoreceptor cell and sending a pulse of light to the cell. This reacted in a biochemical pattern similar to the behavior of photoreceptor in humans exposed to light.

It is true that a stem cell cannot grow completely into a retinal cell by their own , but this experiment show at least what they can do. We hope someday we can use this research to lighten the life of many.

 

 

Retina Grown In Lab from Human Stem Cells

FIFA World cup Brazil Get Schedule In your Phone or any Device through Google Calender

 
 
The FIFA World Cup is only days away and, if you’re just as excited as we are, you’ll want to know when all of the matches kick-off.
So here’s a super-quick guide for adding all of the legendary tournament’s fixtures to your Google Calendar account:
1) Open up the web version and hit the arrow icon just next to the ‘Other Calendars’ option in the sidebar. Select ‘Add by URL’ and then paste the following URL into the dialog box:

https://www.google.com/calendar/feeds/vdmtdcektajkqjk51vvda4ni4k%40group.calendar.google.com/public/basic

Screen Shot 2014 06 10 at 14.53.47 730x548 How to instantly get the entire World Cup schedule in your Google Calendar
2) Alternatively, you can head to this page and click the ‘+ Google Calendar’ button in the bottom right-hand corner. You’ll then be whisked across to your personal online calendar, where you can confirm the new additions.

3) Refresh the page and after a few minutes you should see the schedule appear across all of your devices. If you used the first option, the calendar should also update automatically as teams progress and get knocked out.

How to Add Schedule of FIFA 2014 to Your Calender

 
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