Wednesday, November 7, 2007
Technique lets scientists see brain in full color
Last week it was a fast genetic mice and today its a brain colouration.
With all this fast evolving molecular technologies, why should other
people go about hungry day in day out simply becasue they missed,
the green revolution which saw the increase in food production in
the latin america and east asia.
While, I partly understand the mismatch overlooked in the food patterns
of the crops targeted in green revolution and the satple foods of sub-sahara.
These new technologies will or may equally provide the fast growing and
high yeilding crops of sub-sahara. Yes, we use our maize and cassava not
wheat and rice as promoted by the green revolution.
As a molecular biologists and concerned citizen of the underprivilaged, I
propose that scientists in this region should take the molecular techniques
seriously and think of ways how to improve the comonly used food crops,
to revolutionise the growth and productivity of these food crops.
Take note that the picture and story are credited to Nature and World science staff.
Nov. 6, 2007 Courtesy Nature and World Science staff
With a combination of genetic tricks and fancy proteins, researchers have colored hundreds of individual cells in a mouse brain with distinctive hues. This provides a key step towards understanding how the nervous system works, both normally and in diseased brains, scientists said.
The research, published in the Oct. 31 issue of the research journal Nature, takes brain mapping to a new level, and results in the labelling of nerve cells with approximately 90 different colour combinations.
Over a hundred years ago, the Spanish physician Ramon Y Cajal opened the gates to modern neuroscience with a technique that colors nerve cells so their structure is clearly visible, called Golgi staining.
But it uses only one color, and until now it has remained difficult to map out individual cells in each brain circuit. In the new research, Jeff Lichtman of Harvard University in Massachusetts and colleagues developed a technicolor version of Golgi staining, called “Brainbow,” that they said allows more detailed reconstructions of brain circuits