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Who Gets Duchenne

Duchenne and Becker muscular dystrophies are not specific to any one group, crossing all cultures and races. What sets these two disorders apart from other muscular dystrophies is that they occur almost exclusively in young men, making them gender-linked disorders. Duchenne and Becker affect approximately 1 in every 3,500 live male births (about 20,000 new cases each year).

Why Boys?

The dystrophin gene is carried on the X-chromosome. Young men have one each of the X- and Y-chromosomes, whereas girls have two X-chromosomes. Young men are therefore at greater risk of inheriting disorders caused by damaged genes on the X-chromosome, since they lack a second X-chromosome to “make up” for the damaged gene.

Learn more about What Causes Duchenne.

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