Becker Muscular Dystrophy: Less Common, Still Challenging
Becker muscular dystrophy (BMD) and Duchenne muscular dystrophy (DMD) are progressive muscle-wasting disorders, with BMD being less common and less severe than DMD. Both conditions affect males more commonly and result from changes in the same X chromosome gene.
BMD symptoms typically manifest later than DMD, ranging from 5 to 60 years of age, compared to DMD's onset between 2 to 3 years. While both conditions cause progressive muscle weakness, joint issues, and potential heart and lung problems, BMD's progression is slower and less predictable. Historically, life expectancy in BMD was longer, but recent DMD treatments have extended its life expectancy to the 30s or 40s. Around 400 to 600 boys are born annually in the US with either condition. BMD is diagnosed less frequently than DMD, with estimates placing its incidence at one-third to one-half that of DMD.
Most individuals with BMD can walk unassisted into their 40s, whereas DMD patients require mobility aids by around 13 years of age.
Becker muscular dystrophy, though less common and severe than Duchenne muscular dystrophy, still presents significant challenges. Further research and treatment advancements are crucial to improve the lives of those affected by both conditions.
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