X chromosome inactivation

Duchenne muscular dystrophy carriers carry on, despite uncertainty

posted on November 1, 2007 - 4:20pm
When Rena Szymanski turned 40, she expected to slow down a bit. She never had been athletic, and it sometimes seemed to her that climbing stairs was harder for her than it was for other people, but she thought her strength was “normal” in general. Soon after her birthday, though, she noticed increasing weakness. “I didn’t know what was wrong with me,” says Szymanski, who until recently was...

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