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Scientific proof that men can think with their balls
I know that this is not like my usual photoblog entries but this is way too funny to pass up. A research team from Stanford University has used DNA microarrays to measure the expression of 26,000 human genes in 115 tissue samples representing 35 different tissue types. Their results were recently published, under a Creative Common Attribution License, in the scientific journal Genome Biology.
While perusing their data, I used a statistical method, called a Principal Components Analysis, to position each tissue type in a 3 dimensional graph based on the similarity between their respective gene expression profiles (left panel). I was surprised to find, in this extensive dataset, evidence that testes are the tissue type that is the most similar to the brain. This observation is also evident in the analysis that was performed by the Stanford research team (right panel).
These results thus represent the first scientific evidence that men can indeed think with their balls.
February 17, 2005 |
Science
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