| HP:0000006 | Autosomal dominant inheritance | "A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in heterozygotes. In the context of medical genetics, an autosomal dominant disorder is caused when a single copy of the mutant allele is present. Males and females are affected equally, and can both transmit the disorder with a risk of 50% for each child of inheriting the mutant allele." [HPO:curators] |
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| HP:0000007 | Autosomal recessive inheritance | "A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in homozygotes. In the context of medical genetics, autosomal recessive disorders manifest in homozygotes (with two copies of the mutant allele) or compound heterozygotes (whereby each copy of a gene has a distinct mutant allele)." [HPO:curators] |
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| HP:0000218 | High palate | "Height of the palate more than 2 SD above the mean (objective) or palatal height at the level of the first permanent molar more than twice the height of the teeth (subjective)." [pmid:19125428] |
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| HP:0000508 | Ptosis | "Drooping of the eyelid." [HPO:curators] |
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| HP:0001171 | Ectrodactyly (hands) | |
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| HP:0001178 | Claw hand deformities (in severe cases) | |
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| HP:0001265 | Hyporeflexia | |
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| HP:0001270 | Motor retardation | |
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| HP:0001284 | Areflexia | |
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| HP:0001371 | Contractures | |
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| HP:0001425 | Heterogeneous | |
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| HP:0001761 | Pes cavus | |
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| HP:0001765 | Hammer toes | |
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| HP:0002460 | Distal muscle weakness | "Reduced strength of the distal musculature." [HPO:curators] |
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| HP:0002650 | Scoliosis | "The presence of an abnormal lateral curvature of the spine." [HPO:curators] |
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| HP:0002936 | Distal sensory impairment | |
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| HP:0003376 | Steppage gait | "An abnormal gait pattern that arises from weakness of the pretibial and peroneal muscles due to a lower motor neuron lesion. Affected patients have footdrop and are unable to dorsiflex and evert the foot. The leg is lifted high on walking so that the toes clear the ground, and there may be a slapping noise when the foot strikes the ground again." [HPO:curators] |
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| HP:0003380 | Decreased number of myelinated fibers | "A loss of myelinated nerve fibers (in general, this finding can be observed on nerve biopsy)." [HPO:curators] |
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| HP:0003383 | Onion bulb formations on nerve biopsy | |
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| HP:0003431 | Decreased motor nerve conduction velocity (NCV) | |
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| HP:0003481 | Segmental demyelination/remyelination | |
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| HP:0003621 | Juvenile onset | |
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| HP:0003693 | Distal amyotrophy | "Muscular atrophy affecting muscles in the distal portions of the extremities." [HPO:curators] |
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| HP:0003798 | Nemaline bodies | "Nemaline rods are abnormal bodies are abnormal that can occur in skeletal muscle fibers. THe rods can be observed on histological analysis of muscle biopsy tissue or upon electron microscopy, where they appear either as extensions of sarcomeric Z-lines, in random array without obvious attachment to Z-lines (often in areas devoid of sarcomeres) or in large clusters localized at the sarcolemma or intermyofibrillar spaces." [HPO:curators, pmid:11333380] |
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| HP:0003828 | Variable expressivity | |
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| HP:0004336 | Myelin outfoldings | |
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| HP:0006006 | Hypotrophy of the small hand muscles | |
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| HP:0007233 | Clusters of axonal regeneration | |
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| HP:0009025 | Increased connective tissue | "The presence of an abnormally increased amount of connective tissue." [HPO:curators] |
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| HP:0009027 | Foot dorsiflexor weakness | |
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| HP:0010628 | Facial muscle weakness | "A weakness of any or all of the muscles of the face of any etiology." [HPO:curators] |
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