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31 Possible Causes for Mental Retardation, Muscle Twitch, Onset of Dysarthria in Third Decade of Life

  • Hallervorden-Spatz Syndrome

    They may experience involuntary muscle contractions (dystonia) of the head and neck, resulting in repetitive movements and contortions.[ghr.nlm.nih.gov] Clinical features Dystonia Dysarthria Spasticity Choreoathetosis Parkinsonism Hyperreflexia Extensor toe signs Onset in first to third decade of life Gait change / loss of[ncbi.nlm.nih.gov] Clinical presentations include dystonia, dysarthria, dementia, severe mental retardation and ataxia with rare features as rigidity, choreoathetosis, seizures, optic atrophy[medresearch.in]

  • Spinocerebellar Ataxia Type 1

    (atrophy); and muscle twitches (fasciculations).[ghr.nlm.nih.gov] […] in third to fifth decade of life Pure cerebellar ataxia, nystagmus, dysarthria, dysphagia, hypotonia, and generalized and/or complex partial epilepsy Spinocerebellar ataxia[emedicine.com] SCA 13 is developed in childhood and mental retardation is one of the major problems with the child.[healthsaline.com]

  • Adult-Onset Autosomal Recessive Cerebellar Ataxia

    The episodes are triggered by stress, being startled or sudden movement, and often are associated with muscle twitching.[mayoclinic.org] […] in third to fifth decade of life Pure cerebellar ataxia, nystagmus, dysarthria, dysphagia, hypotonia, and generalized and/or complex partial epilepsy Spinocerebellar ataxia[emedicine.medscape.com] Mild mental retardation. Usually not diagnosed until after puberty. One Barr body seen on buccal smear.[kumc.edu]

  • Autosomal Recessive Spinocerebellar Ataxia 8

    […] of muscles or parts of muscles, without any rhythm or pattern, occurring in various brain disorders) 19q SCA16 39 yrs (20-66) 1-40 years Head and hand tremor 8q SCA17 ( TBP[psychology.wikia.com] […] in third to fifth decade of life Pure cerebellar ataxia, nystagmus, dysarthria, dysphagia, hypotonia, and generalized and/or complex partial epilepsy Spinocerebellar ataxia[emedicine.medscape.com] Ankyrin-B (N105/13, N105/17) LONG QT SYNDROME 4 CARDIAC ARRHYTHMIA, ANKYRIN-B-RELATED Ataxin-1 (N76/3, N76/8) SPINOCEREBELLAR ATAXIA 1 CASK (K56A/50) MENTAL RETARDATION AND[neuromab.ucdavis.edu]

  • Autosomal Recessive Spinocerebellar Ataxia Type 17

    […] of muscles or parts of muscles, without any rhythm or pattern, occurring in various brain disorders) 19q SCA16 39 yrs (20-66) 1-40 years Head and hand tremor 8q SCA17 ( TBP[psychology.wikia.com] […] in third to fifth decade of life Pure cerebellar ataxia, nystagmus, dysarthria, dysphagia, hypotonia, and generalized and/or complex partial epilepsy Spinocerebellar ataxia[emedicine.medscape.com] Only 2 truncating mutations were reported in homozygosity, one of which (c.1150-1151del) was associated with juvenile or adolescent onset and mental retardation, whereas we[spatax.wordpress.com]

  • Episodic Ataxia

    This abnormality can cause muscle cramping, stiffness, and continuous, fine muscle twitching that appears as rippling under the skin.[ghr.nlm.nih.gov] […] in third to fifth decade of life Pure cerebellar ataxia, nystagmus, dysarthria, dysphagia, hypotonia, and generalized and/or complex partial epilepsy Spinocerebellar ataxia[emedicine.com] One of his daughters had severe mental retardation and epilepsy, and the other had paroxysmal ataxic attacks and mild mental retardation.[ncbi.nlm.nih.gov]

  • Autosomal Dominant Spastic Ataxia Type 1

    (atrophy); and muscle twitches (fasciculations).[ghr.nlm.nih.gov] […] in third to fifth decade of life Pure cerebellar ataxia, nystagmus, dysarthria, dysphagia, hypotonia, and generalized and/or complex partial epilepsy Spinocerebellar ataxia[emedicine.medscape.com] Volcke Ph, Dereymaeker AM, Fryns JP, Van den Berghe H: On the nosology of moderate mental retardation with special attention to X-linked mental retardation.[karger.com]

  • Spinocerebellar Ataxia Type 13

    […] jerks or twitches (myoclonic jerks). [1] [2] [3] [4] Other symptoms may include speech difficulty ( dysarthria ), difficulty eating ( dysphagia ), slowness of movements ([rarediseases.info.nih.gov] […] in third to fifth decade of life Pure cerebellar ataxia, nystagmus, dysarthria, dysphagia, hypotonia, and generalized and/or complex partial epilepsy Spinocerebellar ataxia[emedicine.com] "Mapping of spinocerebellar ataxia 13 to chromosome 19q13.3-q13.4 in a family with autosomal dominant cerebellar ataxia and mental retardation".[en.wikipedia.org]

  • X-Linked Spinocerebellar Ataxia Type 5

    […] in third to fifth decade of life Pure cerebellar ataxia, nystagmus, dysarthria, dysphagia, hypotonia, and generalized and/or complex partial epilepsy Spinocerebellar ataxia[emedicine.medscape.com] Mental Retardation, X-Linked 72 3 Mental Retardation, X-Linked 9 2 Mental Retardation, X-Linked 90 3 Mental Retardation, X-Linked 93 2 Mental Retardation, X-Linked 96 1 Mental[preventiongenetics.com] […] of muscles or parts of muscles, without any rhythm or pattern, occurring in various brain disorders) 19q SCA16 39 yrs (20-66) 1-40 years Head and hand tremor 8q SCA17 ( TBP[psychology.wikia.com]

  • Autosomal Recessive Spinocerebellar Ataxia

    […] in third to fifth decade of life Pure cerebellar ataxia, nystagmus, dysarthria, dysphagia, hypotonia, and generalized and/or complex partial epilepsy Spinocerebellar ataxia[emedicine.medscape.com] 32 7 CAPN1 Spastic paraplegia 76, autosomal recessive AR 6 14 CASK Mental retardation and microcephaly with pontine and cerebellar hypoplasia, FG syndrome, Mental retardation[blueprintgenetics.com] […] of muscles or parts of muscles, without any rhythm or pattern, occurring in various brain disorders) 19q SCA16 39 yrs (20-66) 1-40 years Head and hand tremor 8q SCA17 ( TBP[psychology.wikia.com]

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