Disease progression

The function of the diaphragm, a major muscle in breathing, is significantly reduced over a year in adults with Pompe disease relative to healthy people, a small study showed. These deficits, detected through a chest MRI test, were not accompanied by significant changes in lung function tests. In addition,…

A report describes the unusual case of a man with late-onset Pompe disease (LOPD) that manifested with abnormalities in blood flow in the brain causing stroke-like symptoms. Abnormalities affecting blood vessels in the brain may be an under-recognized complication of LOPD, the researchers said. The study, “…

Family reunions are big and important events on my dad’s side of the family. Not long ago, my grammy (grandmother) got to host our first family reunion in two years. We usually have a family reunion every year, but during the COVID-19 pandemic, that didn’t happen. I was ecstatic…

The levels of BNIP3, a protein implicated in muscle fiber atrophy and increased autophagy — two features of late-onset Pompe disease (LOPD) — are increased in muscle samples from LOPD patients relative to healthy people, a small study shows. Autophagy is a pathway by which cells break down damaged…

The six-minute walk distance (6MWD) test is a reliable measure of declines in motor abilities in people with late-onset Pompe disease (LOPD), a two-year study that evaluated a series of such tests reported. Other common measures of motor function and muscle strength failed to reliably detect such changes in…

Interruptions to Myozyme enzyme replacement therapy (ERT) regimens during the COVID-19 pandemic led to worsened motor symptoms and poorer respiratory function in patients with Pompe disease, a French study found. These decreases in motor and respiratory function — seen after just a couple of months — were not…

Infection by the virus that causes COVID-19 led to mild-to-moderate symptoms in four people with late-onset Pompe disease (LOPD) and pulmonary involvement, despite the increased risk of severe complications in such cases, scientists reported. “COVID-19 infection can result in a benign course in some patients with LOPD. However, individuals with LOPD…

Pompe disease patients show severe impairments in diaphragm motion, the major muscle of respiration, when compared with those who have other muscle disorders or motor neuron diseases, a small study reports. The study, “Diaphragmatic dysfunction in neuromuscular disease, an MRI study,” was published in the journal Neuromuscular…

Despite treatment for years with Myozyme (alglucosidase alfa) — marketed in the U.S. as Lumizyme — people with late-onset Pompe disease (LOPD) still develop airway abnormalities and experience reduced lung function, a small Taiwanese retrospective study shows. While none of the five patients in the study required a ventilator…

The same common GAA gene variants that cause Pompe disease can lead to symptoms first appearing at very different ages, and this may be due to factors that modify how genes work, a study of a global database suggests. These findings “will be important for diagnosis, genetic counseling, decision making…