Thursday, June 25, 2009

Cancer Meds Wiped Off Man's Fingerprints


A 62-year-old tourist was trying to enter the United States when he was stopped at customs to have his fingerprints scanned. This was a problem for both him and the customs agents, for he had no fingerprints.

The man, dubbed Mr. S in news reports, was detained for hours as agents checked to make sure he wasn't some sort of sneaky criminal or terrorist. But no, it turns out his fingerprints were removed without his knowledge.

He was taking capecitabine, a follow-up drug for chemotherapy for cancer of the head and neck. One of its side effects is inflammation of the palms and soles of the feet, which can cause peeling and bleeding of the skin and, eventually, can cause fingerprints to vanish.

Mr. S had been taking capecitabine for three years when he decided to visit relatives in the States, at which point his prints were gone. Luckily, he was eventually allowed to enter the country and visit his relatives once the officials determined that he wasn't dangerous.

Saturday, June 20, 2009

Stem Cell Contact Lenses Cure Blindness in Less Than a Month

Here's something that people with poor or no vision will be excited about: three patients had their sight restored in less than a month by contact lenses cultured with stem cells.

All three patients were blind in one eye. The researchers extracted stem cells from their working eyes, cultured them in contact lenses for 10 days, and gave them to the patients. Within 10 to 14 days of use, the stem cells began recolonizing and repairing the cornea.

Of the three patients, two were legally blind but can now read the big letters on an eye chart, while the third, who could previously read the top few rows of the chart, is now able to pass the vision test for a driver's license. The research team isn't getting over excited, still remaining unsure as to whether the correction will remain stable, but the fact that the three test patients have been enjoying restored sight for the last 18 months is definitely encouraging. The simplicity and low cost of the technique also means that it could be carried out in poorer countries.

This is incredible and potentially game changing. It's stuff like this that makes you realize that we live in the future, and it's awesome.