Duchenne Muscular Dystrophy (DMD)

DMD: Gene-Changing 'Cocktail'

Scientists at Children's National Medical Center in Washington, Carolinas Medical Center in Charlotte, N.C., and the National Center of Neurology and Psychiatry in Tokyo, have successfully treated dogs with a disease closely resembling Duchenne muscular dystrophy (DMD) , using a molecular treatment strategy called "exon skipping." The strategy is simultaneously under development in human patients.

Building a Better Gene

Displacement of a protein called neuronal nitric oxide synthase (nNOS) from the membrane that surrounds each skeletal muscle fiber appears to be a much more important contributor to exercise intolerance and even cardiac degeneration in some forms of muscular dystrophy than previously recognized.

DMD Research: Exon Skipping

On Jan. 21, AVI BioPharma of Portland, Ore., announced its experimental compound AVI4658 for the treatment of Duchenne muscular dystrophy (DMD) yielded promising results in a phase 1 clinical trial in the United Kingdom.

DMD Research: Exon Skipping Goes Systemic

AVI BioPharma of Portland, Ore., has started the systemic (through the blood) delivery phase of its clinical trial of AVI4658 in Duchenne muscular dystrophy (DMD). The trial is being conducted in the United Kingdom.

UK Trial: 'Robust Response' to Exon-Skipping Compound Seen

On Jan. 21, AVI BioPharma of Portland, Ore., announced its experimental compound AVI4658 for the treatment of Duchenne muscular dystrophy (DMD) yielded promising results in a phase 1 clinical trial in the United Kingdom.

DMD/BMD Reseach: Minidystrophin Gene

A promising “minidystrophin gene” that restores normal muscle force to skeletal and diaphragm muscles in mice with a disease resembling Duchenne muscular dystrophy (DMD) seems to be only partially effective at restoring strength and function to heart muscles.

DMD Research: Another Dystrophin Stand-In?

Delivering the gene for the missing dystrophin protein to the muscles of children and young men with Duchenne muscular dystrophy (DMD) is one of several therapeutic avenues under intense investigation in this disease. However, the strategy has technical drawbacks, and some experts worry that introduction of a previously absent protein could provoke a dangerous immune response.

CMD Research: Promising Leads

Recently published findings from two independent groups have suggested possible treatment pathways for the merosin-deficient and integrin-deficient forms of congenital muscular dystrophy (CMD).

Doxycycline fights cell death and lessens disease severity in merosin-deficient mice

Speeding the Course of Clinical Trials

Trial Results in DMD Heralded as 'Proof of Concept'

The Dec. 27 issue of the prestigious New England Journal of Medicine featured encouraging results of a phase 1 clinical trial of an exon skipping compound in four boys with Duchenne muscular dystrophy (DMD). Preliminary findings from this trial, conducted in the Netherlands, were announced in May (see Progress Reports).

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