Adult-onset nemaline myopathy is a rare, progressive muscle disorder that affects adults. It is characterized by muscle weakness and wasting, as well as the presence of small, rod-shaped structures called nemaline bodies in muscle tissue. Symptoms can vary from person to person, but may include muscle weakness, fatigue, difficulty walking, and difficulty swallowing. There is no cure for adult-onset nemaline myopathy, but treatments can help manage symptoms and slow the progression of the disease.

The symptoms of adult-onset nemaline myopathy can vary from person to person, but generally include muscle weakness, fatigue, and muscle wasting. Other symptoms may include difficulty swallowing, breathing problems, joint pain, and muscle cramps. In some cases, people may also experience difficulty walking, speaking, or controlling their facial muscles.

The cause of adult-onset nemaline myopathy is unknown. It is believed to be caused by a combination of genetic and environmental factors. Mutations in several genes have been identified as potential causes of the condition, including ACTA1, TPM2, TPM3, NEB, and KLHL40.

The treatments for Adult-onset nemaline myopathy are mainly supportive and symptomatic. These include physical therapy, occupational therapy, speech therapy, respiratory therapy, and orthopedic surgery. Other treatments may include medications to reduce muscle spasms, improve muscle strength, and reduce fatigue. In some cases, a feeding tube may be necessary to ensure adequate nutrition. In severe cases, a ventilator may be needed to assist with breathing.

1. Genetic mutations: Mutations in the NEB, ACTA1, TPM2, and TPM3 genes are known to cause adult-onset nemaline myopathy.

2. Age: Adult-onset nemaline myopathy is more common in adults over the age of 40.

3. Gender: Adult-onset nemaline myopathy is more common in males than females.

4. Family history: A family history of adult-onset nemaline myopathy increases the risk of developing the condition.

At this time, there is no cure for adult-onset nemaline myopathy. Treatment focuses on managing symptoms and preventing complications. Medications may be prescribed to help with muscle weakness, pain, and fatigue. Physical and occupational therapy can help maintain muscle strength and improve mobility. Assistive devices, such as wheelchairs, can help with mobility. Surgery may be recommended to correct joint deformities.