Something for the cat that has everything...
http://www.thecompanyofpets.com/
The purr-fect gift, eh?
Two Legs Good, Four Legs Better.



The Scratch
When executive producer Ellen Horne was expecting a baby, she really had no particular intention of becoming a self-made expert on a parasite named Toxoplasma Gondii. Robert Sapolsky explains to us why Ellen had reason to worry when she was scratched by her cat, and he traces the unlikely path that the parasite might follow, right up to the point that it rewires a rat's brain. Fuller Torrey details Toxoplasma's potential associations with other human disorders, possibly even schizophrenia.
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http://www.wnyc.org/shows/radiolab/episodes/2009/09/25
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"Toxo"
In the world of squirrel monkeys, seeing colors is for girls. Whereas some females enjoy full color vision, males of the South American genus see only blues and yellows (see picture). They lack a gene that allows color-sensitive cells in the eye, called cones, to distinguish red and green from gray--the same distinction that confounds most colorblind humans.Seeking a possible treatment for the human condition, vision scientist Jay Neitz and colleagues at the University of Washington, Seattle, assembled six adult squirrel monkeys, four colorblind males and two female controls. The researchers tested them daily for a year, using a computer program that presented the primates with colorful clumps of dots on a screen of similarly varied gray dots (see video). The results established each monkey's color vision, revealing that the female controls could see colors as a normal human would, while the male monkeys could not distinguish green and red clumps from the gray background. The team then injected the retinas of two of the colorblind monkeys with a virus that introduced the human gene for the red-detecting pigment in cone cells.
The researchers were not optimistic. Unlike the malleable brains of young animals, adult brains are far more rigid and tend to have a harder time rewiring themselves. Many patients blinded in childhood, for example, remain blind when their eyes are repaired in adulthood, because their brains never developed the circuitry for processing what they see.
Twenty weeks after the gene therapy, however, the monkeys began to spot red and green dots in the computer color tests, and soon after they were regularly acing the trials. Now, 2 years later, the monkeys remain able to distinguish all colors, almost on par with their female counterparts. The monkeys' adaptability is partly attributed to the fact that colorblind animals still have color-processing circuitry in their brains. The introduced gene simply gives them the ability to feed new information into the circuitry, "hijacking" a pathway previously used by blues and yellows for reds and greens as well.