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Items: 14

1.

Steinert myotonic dystrophy syndrome

Myotonic dystrophy type 1 (DM1) is a multisystem disorder that affects skeletal and smooth muscle as well as the eye, heart, endocrine system, and central nervous system. The clinical findings, which span a continuum from mild to severe, have been categorized into three somewhat overlapping phenotypes: mild, classic, and congenital. Mild DM1 is characterized by cataract and mild myotonia (sustained muscle contraction); life span is normal. Classic DM1 is characterized by muscle weakness and wasting, myotonia, cataract, and often cardiac conduction abnormalities; adults may become physically disabled and may have a shortened life span. Congenital DM1 is characterized by hypotonia and severe generalized weakness at birth, often with respiratory insufficiency and early death; intellectual disability is common. [from GeneReviews]

MedGen UID:
10239
Concept ID:
C0027126
Disease or Syndrome
2.

Myopathy

A disorder of muscle unrelated to impairment of innervation or neuromuscular junction. [from HPO]

MedGen UID:
505479
Concept ID:
CN002886
Finding
3.

Myotonic dystrophy

MedGen UID:
431820
Concept ID:
CN068865
Disease or Syndrome
4.

Myotonic dystrophy type 2

Myotonic dystrophy type 2 (DM2) is characterized by myotonia (90% of affected individuals) and muscle dysfunction (weakness, pain, and stiffness) (82%), and less commonly by cardiac conduction defects, iridescent posterior subcapsular cataracts, insulin-insensitive type 2 diabetes mellitus, and testicular failure. Although myotonia (involuntary muscle contraction with delayed relaxation) has been reported during the first decade, onset is typically in the third decade, most commonly with fluctuating or episodic muscle pain that can be debilitating and weakness of the neck flexors and finger flexors. Subsequently, weakness occurs in the elbow extensors and the hip flexors and extensors. Facial weakness and weakness of the ankle dorsiflexors are less common. Myotonia rarely causes severe symptoms. [from GeneReviews]

MedGen UID:
155755
Concept ID:
C0752354
Disease or Syndrome
5.

Myopathy

Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis. . Causes of muscle disorders include. -Injury or overuse, such as sprains or strains, cramps or tendinitis . -A genetic disorder, such as muscular dystrophy. -Some cancers. -Inflammation, such as myositis. -Diseases of nerves that affect muscles. -Infections. -Certain medicines. Sometimes the cause is not known.  [from MedlinePlus]

MedGen UID:
10135
Concept ID:
C0026848
Disease or Syndrome
6.

Myotonia

An involuntary and painless delay in the relaxation of skeletal muscle following contraction or electrical stimulation. [from HPO]

MedGen UID:
10238
Concept ID:
C0027125
Finding
7.

Autosomal dominant inheritance

MedGen UID:
879993
Concept ID:
CN235389
Finding
8.

Myopathy, variable

MedGen UID:
865119
Concept ID:
C4016682
Finding
9.

Muscular dystrophy

The term dystrophy means abnormal growth. However, muscular dystrophy is used to describe primary myopathies with a genetic basis and a progressive course characterized by progressive skeletal muscle weakness and wasting, defects in muscle proteins, and histological features of muscle fiber degeneration (necrosis) and regeneration. If possible, it is preferred to use other HPO terms to describe the precise phenotypic abnormalities. [from HPO]

MedGen UID:
351199
Concept ID:
C1864711
Finding
10.

Autosomal dominant inheritance

Autosomal dominant inheritance refers to genetic conditions that occur when a mutation is present in one copy of a given gene (i.e., the person is heterozygous). [from NCI]

MedGen UID:
141047
Concept ID:
C0443147
Genetic Function; Intellectual Product
11.

Muscular dystrophy

Muscular dystrophy (MD) is a group of more than 30 inherited diseases. They all cause muscle weakness and muscle loss. Some forms of MD appear in infancy or childhood. Others may not appear until middle age or later. The different types can vary in whom they affect, which muscles they affect, and what the symptoms are. All forms of MD grow worse as the person's muscles get weaker. Most people with MD eventually lose the ability to walk. There is no cure for muscular dystrophy. Treatments can help with the symptoms and prevent complications. They include physical and speech therapy, orthopedic devices, surgery, and medications. Some people with MD have mild cases that worsen slowly. Others cases are disabling and severe. NIH: National Institute of Neurological Disorders and Stroke.  [from MedlinePlus]

MedGen UID:
44527
Concept ID:
C0026850
Congenital Abnormality; Disease or Syndrome
12.

Inborn genetic diseases

Diseases that are caused by genetic mutations present during embryo or fetal development, although they may be observed later in life. The mutations may be inherited from a parent's genome or they may be acquired in utero. [from MeSH]

MedGen UID:
181981
Concept ID:
C0950123
Disease or Syndrome
13.

Myotonic disorder

Diseases characterized by MYOTONIA, which may be inherited or acquired. Myotonia may be restricted to certain muscles (e.g., intrinsic hand muscles) or occur as a generalized condition. [from MeSH]

MedGen UID:
107510
Concept ID:
C0553604
Disease or Syndrome
14.

Neuromuscular Diseases

Neuromuscular disorders affect the nerves that control your voluntary muscles. Voluntary muscles are the ones you can control, like in your arms and legs. Your nerve cells, also called neurons, send the messages that control these muscles. When the neurons become unhealthy or die, communication between your nervous system and muscles breaks down. As a result, your muscles weaken and waste away. The weakness can lead to twitching, cramps, aches and pains, and joint and movement problems. Sometimes it also affects heart function and your ability to breathe. Examples of neuromuscular disorders include. -Amyotrophic lateral sclerosis. -Multiple sclerosis. -Myasthenia gravis. -Spinal muscular atrophy. Many neuromuscular diseases are genetic, which means they run in families or there is a mutation in your genes. Sometimes, an immune system disorder can cause them. Most of them have no cure. The goal of treatment is to improve symptoms, increase mobility and lengthen life.  [from MedlinePlus]

MedGen UID:
10323
Concept ID:
C0027868
Disease or Syndrome
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