Dominic Stone
Muscular dystrophy (MD) is a group of more than 30 genetic diseases that cause progressive muscle weakness and atrophy. While MD cannot be prevented, treatments can help to slow its progression and improve quality of life. Treatments include medications, physical and occupational therapy, and surgical and other procedures. For example, physical therapy can help to maintain muscle strength and flexibility and prevent joint stiffness. Corticosteroids can also help with muscle strength and delay the progression of certain types of MD.
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What You'll Learn
- While muscular dystrophy cannot be prevented, physical therapy can help maintain muscle strength and flexibility
- Corticosteroids can help improve lung function and delay scoliosis
- Surgery can relieve tension in contracted muscles and correct spine curvature
- Heart care with ACE inhibitors and beta-blockers can slow the progression of cardiomyopathy
- Gene therapy is being explored to enable muscles to produce dystrophin
While muscular dystrophy cannot be prevented, physical therapy can help maintain muscle strength and flexibility
While there is currently no way to prevent muscular dystrophy, there are treatments that can help slow the progression of the disease and improve quality of life. Muscular dystrophy refers to a group of more than 30 genetic conditions that cause progressive muscle weakness and atrophy. The symptoms of muscular dystrophy get worse over time and can affect an individual's ability to move, walk, and perform daily activities.
Physical therapy can be an effective treatment for muscular dystrophy, helping to maintain muscle strength and flexibility and prevent joint stiffness. It is recommended that physical therapy starts in the earliest stages of muscular dystrophy to be most effective. Physical and occupational therapists can work with patients to strengthen and stretch their muscles, helping them to maintain movement function and prevent falls.
In addition to physical therapy, medications can also help to manage symptoms and slow the progression of the disease. Corticosteroids, such as prednisone, deflazacort (Emflaza), and prednisolone, can help improve muscle strength and delay the progression of certain types of muscular dystrophy. However, prolonged use of these drugs can have side effects, such as weight gain and weakened bones. Newer medications, such as eteplirsen (Exondys 51) and golodirsen (Vyondys 53), have been specifically approved to treat certain people with Duchenne muscular dystrophy.
Other treatments for muscular dystrophy include surgical procedures, mobility aids, and heart care. Surgery may be necessary to relieve tension in contracted muscles or to correct spine curvature (scoliosis). Mobility aids, such as canes, braces, walkers, and wheelchairs, can improve mobility and prevent falls. Early treatment with ACE inhibitors and/or beta-blockers may help slow the progression of cardiomyopathy and prevent heart failure.
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Corticosteroids can help improve lung function and delay scoliosis
While muscular dystrophy cannot be prevented, certain treatments can help to slow its progression and improve quality of life. One such treatment is corticosteroids, which can help improve lung function and delay scoliosis.
Corticosteroids, such as prednisolone and deflazacort, have been shown to be effective in delaying muscle weakness, improving lung function, and delaying scoliosis in people with muscular dystrophy. Muscular dystrophy is a group of genetic conditions that cause muscle weakness and affect muscle function. It can impact an individual's ability to move, walk, and perform daily activities, and the symptoms tend to worsen over time.
Corticosteroids have been found to preserve strength, pulmonary function, and ambulation, while also reducing the incidence of scoliosis. Scoliosis is a common complication of muscular dystrophy, particularly in males with Duchenne muscular dystrophy, and corticosteroids can help to slow its progression. In addition, corticosteroids can delay the need for spinal surgery, which is often required to treat scoliosis.
The use of corticosteroids in treating muscular dystrophy was first proposed in 1974, but it did not become a generally accepted therapy until the 1990s. Today, it is considered a standard treatment option, as it has been shown to have positive multisystem functional effects. However, there can be serious side effects, and long-term evaluation is needed to fully understand the impact of corticosteroids on the development of scoliosis.
Overall, corticosteroids are a valuable tool in the management of muscular dystrophy, helping to improve lung function and delay the onset of scoliosis, thereby enhancing the quality of life for those living with this condition.
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Surgery can relieve tension in contracted muscles and correct spine curvature
Muscular dystrophy refers to a group of more than 30 genetic conditions that cause muscle weakness and other muscle-related symptoms. The symptoms of muscular dystrophy get worse over time and can be present at birth, develop in childhood, or develop in adulthood. The main goal of treatment is to manage symptoms and improve quality of life. Treatments can vary depending on the type of muscular dystrophy and may include physical and occupational therapies, corticosteroids, mobility aids, surgery, and heart care.
One of the most common forms of muscular dystrophy is Duchenne muscular dystrophy (DMD), which mainly affects boys but can also affect girls with milder symptoms. As DMD progresses, it can lead to scoliosis, or curvature of the spine, which is usually progressive. Scoliosis can also occur in other forms of muscular dystrophy, such as Friedreich's ataxia, myotonic dystrophy, and facioscapulohumeral muscular dystrophy.
While there is currently no cure or preventive measure for muscular dystrophy, surgery can be performed to correct spine curvature and relieve tension in contracted muscles. Spinal fusion surgery, for example, can be used to straighten and stabilize the vertebrae of the spine, using rods, screws, wires, and bone grafts. This type of surgery can help improve respiratory function, facilitate care, improve cosmetic appearance, and hopefully increase life expectancy. However, it is important to note that there is a lack of randomized controlled clinical trials evaluating the effectiveness of scoliosis surgery in patients with DMD, and patients should be informed of the uncertainty of benefits and potential risks.
In addition to spinal fusion surgery, soft tissue release surgery is another option for treating muscular dystrophy. This procedure involves making an incision in the affected muscles, tendons, or ligaments to release them from the joints, improving freedom and comfort of movement. While this type of surgery does not address spine curvature directly, it can help relieve tension in contracted muscles and improve mobility for individuals with muscular dystrophy.
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Heart care with ACE inhibitors and beta-blockers can slow the progression of cardiomyopathy
While muscular dystrophy cannot be prevented, certain treatments can help to slow its progression. Muscular dystrophy refers to a group of more than 30 genetic conditions that cause muscle weakness and other muscle-related symptoms. The symptoms of muscular dystrophy get worse over time and can affect a person's ability to move, walk, and perform daily activities.
Heart care is an important aspect of treating muscular dystrophy, as some forms of the disease can affect the muscles that support heart and lung function. Early treatment with Angiotensin Converting Enzyme (ACE) inhibitors and beta-blockers can slow the progression of cardiomyopathy and prevent the onset of heart failure. ACE inhibitors are a class of drugs used to manage cardiovascular and renal diseases, including congestive heart failure, acute coronary syndrome, nephrotic syndrome, diabetes, and hypertension. They improve heart function by decreasing afterload, preload, and systolic wall stress, resulting in increased cardiac output without raising heart rate. Beta-blockers, on the other hand, can prevent adverse left ventricular remodelling by favourably altering genes governing hypertrophy, fibrosis, and myocardial stiffness. This, in turn, impacts blood pressure, heart rate, and the workload of myocytes, helping to break a cycle of escalating myocardial decompensation.
In addition to ACE inhibitors and beta-blockers, other treatments for muscular dystrophy include physical therapy, corticosteroids, mobility aids, and surgery. Physical therapy, in particular, when started in the early stages of muscular dystrophy, can help maintain muscle strength and flexibility and prevent joint stiffness. Corticosteroids, such as prednisolone and deflazacort, may be beneficial for delaying muscle weakness, improving lung function, delaying scoliosis, and prolonging survival. Mobility aids, such as canes, braces, walkers, and wheelchairs, can improve an individual's mobility and help prevent falls. In some cases, surgery may be necessary to relieve tension in contracted muscles or to correct spine curvature (scoliosis).
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$21.5
Gene therapy is being explored to enable muscles to produce dystrophin
While muscular dystrophy cannot be prevented, treatments can help to slow its progression and improve quality of life. Muscular dystrophy refers to a group of more than 30 genetic conditions that cause muscle weakness and other muscle-related symptoms. The symptoms of muscular dystrophy get worse over time and can affect a person's ability to move, walk, and perform daily activities.
Gene therapy is being explored as a potential treatment for Duchenne muscular dystrophy (DMD), the most common form of the disease. DMD is caused by a defective gene for dystrophin, a protein essential for muscle strength. Individuals with DMD produce little to no dystrophin in their muscles, leading to muscle deterioration over time. Gene therapy for DMD aims to induce the production of a shortened but functional version of dystrophin, known as a micro-dystrophin protein. This micro-dystrophin is delivered to the muscles and heart cells using a viral vector, such as an adeno-associated virus vector, and it starts producing the protein without integrating with the nuclear DNA. This approach helps improve muscle health, slows muscle wasting, and can lead to improved strength and endurance.
The Food and Drug Administration (FDA) has approved Elevidys, the first gene therapy for DMD, for patients between the ages of 4 and 5 years old. This approval is considered a "monumental advance" and has created important momentum in the field of Duchenne and gene therapy. However, it is important to note that gene therapy does not offer a cure for DMD and cannot bring back lost muscle cells. There are also questions about the long-lasting effects of gene therapy, and some DMD gene mutations have been excluded from dosing due to potential immune reactions.
Despite these challenges, tremendous progress has been made in developing improved viral vectors and avoiding immune reactions against gene transfer. Researchers are also exploring alternative approaches to gene delivery, which may allow for more targeted effects on the muscles and the production of even more functional versions of dystrophin. The EMBARK phase 3 study is currently ongoing, and it will provide critical information about the drug's clinical efficacy and the best time to deliver gene therapy.
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Frequently asked questions
A:
Muscular dystrophy is a group of more than 30 genetic conditions that cause progressive muscle weakness and atrophy. It is not possible to prevent it as it does not occur due to external factors such as infection, activity levels, or injury. However, treatment can help to slow its progression and improve quality of life.
A:
The symptoms of muscular dystrophy vary depending on the type but generally include progressive muscle weakness, loss of muscle mass, and difficulties in body movement and control. Some people with muscular dystrophy experience trouble walking, using their arms, and performing daily activities.
A:
There is no cure for muscular dystrophy, but treatments can help to manage symptoms and slow the progression of the disease. Treatments include medications such as corticosteroids, physical and occupational therapy, surgical procedures, and mobility aids.
A:
There are seven major types of muscular dystrophy that affect children and young adults, and many other types have been identified. The most common form is Duchenne muscular dystrophy, which mainly affects boys and can also appear in a milder form in girls. Other common types include Becker muscular dystrophy, Emery-Dreifuss muscular dystrophy, and Facioscapulohumeral muscular dystrophy.
A:
To diagnose muscular dystrophy, a physician will take a thorough medical history and perform a physical examination. Diagnostic tests may also be ordered, such as blood tests, muscle biopsies, heart and lung monitoring tests, and electromyography.
