Format
Items per page

Send to:

Choose Destination

Links from PubMed

Items: 19

1.

Peripheral neuropathy

Peripheral neuropathy is a general term for any disorder of the peripheral nervous system. The main clinical features used to classify peripheral neuropathy are distribution, type (mainly demyelinating versus mainly axonal), duration, and course. [from HPO]

MedGen UID:
506330
Concept ID:
CN008687
Finding
2.

Parkinsonism

Characteristic neurologic anomaly resulting form degeneration of dopamine-generating cells in the substantia nigra, a region of the midbrain, characterized clinically by shaking, rigidity, slowness of movement and difficulty with walking and gait. [from HPO]

MedGen UID:
504793
Concept ID:
CN001191
Finding
3.

Ophthalmoplegia

Paralysis of one or more extraocular muscles that are responsible for eye movements. [from HPO]

MedGen UID:
504518
Concept ID:
CN000564
Finding
4.

Muscle weakness

A vague complaint of debility, fatigue, or exhaustion attributable to weakness of various muscles. The weakness can be characterized as subacute or chronic, often progressive, and is a manifestation of many muscle and neuromuscular diseases. (From Wyngaarden et al., Cecil Textbook of Medicine, 19th ed, p2251) [from MeSH]

MedGen UID:
57735
Concept ID:
C0151786
Finding; Sign or Symptom
5.

Ataxia

unable to coordinate muscle movement [from CHV]

MedGen UID:
13945
Concept ID:
C0004134
Sign or Symptom
6.

Psychiatric

MedGen UID:
851585
Concept ID:
C1548428
Finding; Intellectual Product
7.

progressive

MedGen UID:
851455
Concept ID:
CN232553
Finding
8.

Abnormality of extrapyramidal motor function

A neurological condition related to lesions of the basal ganglia leading to typical abnormalities including akinesia (inability to initiate changes in activity and perform volitional movements rapidly and easily), muscular rigidity (continuous contraction of muscles with constant resistance to passive movement), chorea (widespread arrhythmic movements of a forcible, rapid, jerky, and restless nature), athetosis (inability to sustain the muscles of the fingers, toes, or other group of muscles in a fixed position), and akathisia (inability to remain motionless). [from HPO]

MedGen UID:
505080
Concept ID:
CN001873
Finding
9.

Ataxia

Cerebellar ataxia refers to ataxia due to dysfunction of the cerebellum. This causes a variety of elementary neurological deficits including asynergy (lack of coordination between muscles, limbs and joints), dysmetria (lack of ability to judge distances that can lead to under- oder overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly). [from HPO]

MedGen UID:
504767
Concept ID:
CN001146
Finding
10.

Progressive external ophthalmoplegia

Initial bilateral ptosis followed by limitation of eye movements in all directions and slowing of saccades. [from HPO]

MedGen UID:
504513
Concept ID:
CN000553
Finding
11.

External ophthalmoplegia

Paralysis of the external ocular muscles. [from HPO]

MedGen UID:
504486
Concept ID:
CN000510
Finding
12.

Hypogonadism

A decreased functionality of the gonad. [from HPO]

MedGen UID:
504359
Concept ID:
CN000131
Finding
13.

Multiple mitochondrial DNA deletions

MedGen UID:
479006
Concept ID:
C3277376
Finding
14.

Hearing impairment

A decreased magnitude of the sensory perception of sound. [from HPO]

MedGen UID:
446352
Concept ID:
CN000341
Finding
15.

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
Intellectual Product
16.

Progressive external ophthalmoplegia

Progressive external ophthalmoplegia is a condition characterized by weakness of the eye muscles. The condition typically appears in adults between ages 18 and 40. The most common signs and symptoms of progressive external ophthalmoplegia are drooping eyelids (ptosis), which can affect one or both eyelids, and weakness or paralysis of the muscles that move the eye (ophthalmoplegia). Affected individuals may also have general weakness of the skeletal muscles (myopathy), particularly in the neck, arms, or legs. The weakness may be especially noticeable during exercise (exercise intolerance). Muscle weakness may also cause difficulty swallowing (dysphagia). When the muscle cells of affected individuals are stained and viewed under a microscope, these cells usually appear abnormal. These abnormal muscle cells contain an excess of structures called mitochondria and are known as ragged-red fibers. Additionally, a close study of muscle cells may reveal abnormalities in a type of DNA found in mitochondria called mitochondrial DNA (mtDNA). Affected individuals often have large deletions of genetic material from mtDNA in muscle tissue. Although muscle weakness is the primary symptom of progressive external ophthalmoplegia, this condition can be accompanied by other signs and symptoms. In these instances, the condition is referred to as progressive external ophthalmoplegia plus (PEO+). Additional signs and symptoms can include hearing loss caused by nerve damage in the inner ear (sensorineural hearing loss), weakness and loss of sensation in the limbs due to nerve damage (neuropathy), impaired muscle coordination (ataxia), a pattern of movement abnormalities known as parkinsonism, or depression. Progressive external ophthalmoplegia is part of a spectrum of disorders with overlapping signs and symptoms. Similar disorders include other conditions caused by POLG gene mutations, such as ataxia neuropathy spectrum, as well as other mtDNA deletion disorders, such as Kearns-Sayre syndrome. Like progressive external ophthalmoplegia, the other conditions in this spectrum can involve weakness of the eye muscles. However, these conditions have many additional features not shared by most people with progressive external ophthalmoplegia.
[from GHR]

MedGen UID:
102439
Concept ID:
C0162674
Disease or Syndrome
17.

Paralysis

Paralysis is the loss of muscle function in part of your body. It happens when something goes wrong with the way messages pass between your brain and muscles. Paralysis can be complete or partial. It can occur on one or both sides of your body. It can also occur in just one area, or it can be widespread. Paralysis of the lower half of your body, including both legs, is called paraplegia. Paralysis of the arms and legs is quadriplegia. . Most paralysis is due to strokes or injuries such as spinal cord injury or a broken neck. Other causes of paralysis include. -Nerve diseases such as amyotrophic lateral sclerosis. - Autoimmune diseases such as Guillain-Barre syndrome. - Bell's palsy, which affects muscles in the face. Polio used to be a cause of paralysis, but polio no longer occurs in the U.S.  [from MedlinePlus]

MedGen UID:
105510
Concept ID:
C0522224
Finding
18.

Neuropathy with hearing impairment

This syndrome is characterized by the association of sensorineural hearing impairment and peripheral neuropathy. [from ORDO]

MedGen UID:
799681
Concept ID:
CN199414
Disease or Syndrome
19.

Autosomal dominant progressive external ophthalmoplegia with mitochondrial DNA deletions 1

POLG-related disorders comprise a continuum of overlapping phenotypes that were clinically defined long before their molecular basis was known. These phenotypes exemplify the diversity that can result from mutation of a given gene. Most affected individuals have some, but not all, of the features of a given phenotype; nonetheless, the following nomenclature can assist the clinician in diagnosis and management. Onset of the POLG-related disorders ranges from infancy to late adulthood. Alpers-Huttenlocher syndrome (AHS), one of the most severe phenotypes, is characterized by childhood-onset progressive and ultimately severe encephalopathy with intractable epilepsy and hepatic failure. Childhood myocerebrohepatopathy spectrum (MCHS) presents between the first few months of life up to about age three years with developmental delay or dementia, lactic acidosis, and a myopathy with failure to thrive. Other findings can include liver failure, renal tubular acidosis, pancreatitis, cyclic vomiting, and hearing loss. Myoclonic epilepsy myopathy sensory ataxia (MEMSA) now describes the spectrum of disorders with epilepsy, myopathy, and ataxia without ophthalmoplegia. MEMSA now includes the disorders previously described as spinocerebellar ataxia with epilepsy (SCAE). The ataxia neuropathy spectrum (ANS) includes the phenotypes previously referred to as mitochondrial recessive ataxia syndrome (MIRAS) and sensory ataxia neuropathy dysarthria and ophthalmoplegia (SANDO). About 90% of persons in the ANS have ataxia and neuropathy as core features. Approximately two thirds develop seizures and almost one half develop ophthalmoplegia; clinical myopathy is rare. Autosomal recessive progressive external ophthalmoplegia (arPEO) is characterized by progressive weakness of the extraocular eye muscles resulting in ptosis and ophthalmoparesis (or paresis of the extraocular muscles) without associated systemic involvement; however, caution is advised because many individuals with apparently isolated arPEO at the onset develop other manifestations of POLG-related disorders over years or decades. Of note, in the ANS spectrum the neuropathy commonly precedes the onset of PEO by years to decades. Autosomal dominant progressive external ophthalmoplegia (adPEO) typically includes a generalized myopathy and often variable degrees of sensorineural hearing loss, axonal neuropathy, ataxia, depression, Parkinsonism, hypogonadism, and cataracts (in what has been called “chronic progressive external ophthalmoplegia plus,” or “CPEO+”). [from GeneReviews]

MedGen UID:
371919
Concept ID:
C1834846
Disease or Syndrome
Format
Items per page

Send to:

Choose Destination

Supplemental Content

Find related data

Recent activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...