In the following list you will find some of the most common rare diseases related to Ataxia and Alopecia that can help you solving undiagnosed cases.
Autosomal recessive dyskeratosis congenita-6 is a bone marrow failure disorder associated with abnormal skin pigmentation, nail dystrophy, oral leukoplakia, microcephaly, and developmental delay (summary by Tummala et al., 2015).For a discussion of genetic heterogeneity of dyskeratosis congenita, see DKCA1 (OMIM ).
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Holocarboxylase synthetase (HCS) deficiency is a life-threatening early-onset form of multiple carboxylase deficiency (see this term), an inborn error of biotin metabolism, that, if untreated, is characterized by vomiting, tachypnea, irritability, lethargy, exfoliative dermatitis, and seizures that can worsen to coma.
HOLOCARBOXYLASE SYNTHETASE DEFICIENCY Is also known as multiple carboxylase deficiency, neonatal form|hlcs deficiency|neonatal multiple carboxylase deficiency|multiple carboxylase deficiency, early onset|early-onset multiple carboxylase deficiency
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SOURCES: ORPHANET OMIM MESH MENDELIAN
More info about HOLOCARBOXYLASE SYNTHETASE DEFICIENCYArgininosuccinic aciduria (ASA) is a disorder of urea cycle metabolism most commonly characterized by either a severe, neonatal-onset form that manifests with hyperammonemia accompanied with vomiting, hypothermia, lethargy and poor feeding in the first few days of life, or late-onset forms (any age outside the newborn period) that manifest with stress or infection-induced episodic hyperammonemia or, in some, behavioral abnormalities and/or learning disabilities. Patients often manifest liver dysfunction.
ARGININOSUCCINIC ACIDURIA Is also known as argininosuccinic acid lyase deficiency|asa deficiency|argininosuccinase deficiency|argininosuccinatelyase deficiency|argininosuccinate lyase deficiency|asl deficiency
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SOURCES: ORPHANET MESH OMIM MENDELIAN
More info about ARGININOSUCCINIC ACIDURIACHANARIN-DORFMAN SYNDROME; CDS Is also known as neutral lipid storage disease with ichthyosis|dcs|nlsdi|triglyceride storage disease with impaired long-chain fatty acid oxidation|dorfman-chanarin syndrome|chanarin-dorfman disease|ichthyosiform erythroderma with leukocyte vacuolation|ichthyotic neutral
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SOURCES: OMIM ORPHANET MENDELIAN
More info about CHANARIN-DORFMAN SYNDROME; CDSALG6-CDG is a form of congenital disorders of N-linked glycosylation characterized by feeding problems, mild-to-moderate neurologic involvement with hypotonia, poor head control, developmental delay, ataxia, strabismus, and seizures, ranging from febrile convulsions to epilepsy. Retinal degeneration has also been reported. A minority of patients show other manifestations, particularly intestinal (such as protein-losing enteropathy) and liver involvement. The disease is caused by loss of function mutations of the gene ALG6 (1p31.3).
ALG6-CDG Is also known as cdg1c|cdg ic|cdgs5, formerly|cdg-ic|carbohydrate-deficient glycoprotein syndrome, type i, with deficient glycosylation of dolichol-linked oligosaccharide, formerly|cdgic|congenital disorder of glycosylation type 1c|carbohydrate-deficient glycoprotein synd
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SOURCES: OMIM MESH ORPHANET MENDELIAN
More info about ALG6-CDGCARASIL is a hereditary cerebral small vessel disease characterized by early-onset gait disturbances, premature scalp alopecia, ischemic stroke, acute mid to lower back pain and progressive cognitive disturbances leading to severe dementia.
CARASIL Is also known as cerebrovascular disease with thin skin, alopecia, and disc disease|subcortical vascular encephalopathy, progressive|maeda syndrome|cerebral autosomal recessive arteriopathy with subcortical infarcts and leukoencephalopathy
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SOURCES: OMIM ORPHANET MESH MENDELIAN
More info about CARASILDORFMAN-CHANARIN DISEASE Is also known as neutral lipid storage disease with ichthyosis|nlsdi
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Laurence-Moon syndrome has a clinical presentation similar to that of Oliver-McFarlane syndrome (OMIM ), including chorioretinopathy and pituitary dysfunction, but with childhood onset of ataxia, peripheral neuropathy, and spastic paraplegia and without trichomegaly. Historically, Laurence-Moon syndrome has been associated with Bardet-Biedl syndrome (see BBS, {209900}) (summary by Hufnagel et al., 2015).Oliver-McFarlane syndrome is an allelic disorder.
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Oliver-McFarlane syndrome is a rare congenital disorder characterized by trichomegaly, severe chorioretinal atrophy and multiple pituitary hormone deficiencies, including growth hormone (GH ), gonadotropins (see {118860}), and thyroid-stimulating hormone (TSH; see {118850}). Thyroid and GH abnormalities may be present at birth and, if untreated, result in intellectual impairment and profound short stature. Congenital hypogonadism occurs in half of patients, and nearly all have documented hypogonadotropic hypogonadism during puberty, with subsequent reproductive dysfunction. Chorioretinal atrophy is typically noted in the first 5 years of life. Half of reported cases have spinocerebellar involvement, including ataxia, spastic paraplegia, and peripheral neuropathy (summary by Hufnagel et al., 2015).Laurence-Moon syndrome (OMIM ) is an allelic disorder with overlapping features.
OLIVER-MCFARLANE SYNDROME; OMCS Is also known as eyelashes, long, with mental retardation|trichomegaly with mental retardation, dwarfism, and pigmentary degeneration of retina
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Dihyropyrimidine dehydrogenase deficiency shows large phenotypic variability, ranging from no symptoms to a convulsive disorder with motor and mental retardation in homozygous patients. In addition, homozygous and heterozygous mutation carriers can develop severe toxicity after the administration of the antineoplastic drug 5-fluorouracil (5FU), which is also catabolized by the DPYD enzyme. This is an example of a pharmacogenetic disorder (Van Kuilenburg et al., 1999).Since there is no correlation between genotype and phenotype in DPD deficiency, it appears that the deficiency is a necessary, but not sufficient, prerequisite for the development of clinical abnormalities (Van Kuilenburg et al., 1999; Enns et al., 2004).
DIHYDROPYRIMIDINE DEHYDROGENASE DEFICIENCY Is also known as pyrimidinemia, familial|familial pyrimidinemia|dpyd deficiency|dpd deficiency|thymine-uraciluria, hereditary
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SOURCES: MESH OMIM ORPHANET MENDELIAN
More info about DIHYDROPYRIMIDINE DEHYDROGENASE DEFICIENCYSymptoms // Phenotype | % cases |
---|---|
Intellectual disability | Common - Between 50% and 80% cases |
Global developmental delay | Common - Between 50% and 80% cases |
Short stature | Uncommon - Between 30% and 50% cases |
Nystagmus | Uncommon - Between 30% and 50% cases |
Growth delay | Uncommon - Between 30% and 50% cases |
Patients with Ataxia and Alopecia. may also develop some of the following symptoms:
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