Hereditary sensory and autonomic neuropathy type IE
עודכן לאחרונה 18 Aug 2020
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Hereditary sensory and autonomic neuropathy type IE (HSAN IE) is a disorder that affects the nervous system. It is characterised by three main features: hearing loss, a decline of intellectual function (dementia), and a worsening loss of sensation in the feet and legs (peripheral neuropathy).
תיאור
Hereditary sensory and autonomic neuropathy type IE (HSAN IE) is a disorder that affects the nervous system. It is characterised by three main features: hearing loss, a decline of intellectual function (dementia), and a worsening loss of sensation in the feet and legs (peripheral neuropathy).
People with HSAN IE develop hearing loss that is caused by abnormalities in the inner ear (sensorineural hearing loss). The hearing loss, which affects both ears, gets worse over time and usually progresses to moderate or severe deafness between the ages of 20 and 35.
Affected individuals experience dementia typically beginning in their thirties. In some people with HSAN IE, changes in personality, such as irritability, apathy, or lack of impulse control, become apparent before problems with thinking skills.
Peripheral neuropathy is caused by impaired function of nerve cells called sensory neurons, which transmit information about sensations such as pain, temperature, and touch. Loss of sensation in the feet and legs, which usually begins in adolescence or early adulthood in people with HSAN IE and worsens over time, can cause difficulty walking. Affected individuals may not be aware of injuries to their feet, which can lead to complications such as open sores and infections. If these complications are severe, amputation of the affected areas may be required.
Some people with HSAN IE also experience recurrent seizures (epilepsy) and sleep problems. The severity of the signs and symptoms of HSAN IE and their age of onset are variable, even among affected members of the same family.
Inheritance patterns
The source lists the following possible inheritance patterns: Autosomal dominant. More than one pattern can apply in different cases.
Related genes
Other names
DNMT1-complex disorder
DNMT1-related dementia, deafness, and sensory neuropathy
Hereditary sensory and autonomic neuropathy type 1 with dementia and hearing loss
Hereditary sensory neuropathy type IE
HSAN1E
HSN IE
HSNIE
Related patient information and medicines
Patient information leaflet
נוירופתיה פריפרית
Peripheral neuropathy means damage to one or more of your peripheral nerves. Diabetes is the most common cause of persistent (chronic) peripheral neuropathy. If sensory nerves are damaged, this is known as sensory neuropathy. Muscle paralysis (the muscle is unable to move at all and you don't have a... If autonomic nerves are affected, this is.
Patient information leaflet
נוירופתיה סוכרתית
נוירופתיה סוכרתית is a type of nerve damage that can occur if you have סוכרת. נוירופתיה סוכרתית is a common complication of both type 1 diabetes and type 2 diabetes. The best way to prevent or treat diabetic neuropathy is to keep your blood sugar (glucose) and blood pressure well controlled, to attend regular diabetes checks and to avoid.
Patient information leaflet
תסמונת גיליאן-בארה
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Patient information leaflet
מניעת נפילות בקרב קשישים
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Patient information leaflet
תסמונת שיוגרן
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סחרחורת
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קריאה נוספת והפניות
- Hereditary sensory and autonomic neuropathy type IE; MedlinePlus, National Library of Medicine.
- Baets J, Duan X, Wu Y, Smith G, Seeley WW, Mademan I, McGrath NM, Beadell NC, Khoury J, Botuyan MV, Mer G, Worrell GA, Hojo K, DeLeon J, Laura M, Liu YT, Senderek J, Weis J, Van den Bergh P, Merrill SL, Reilly MM, Houlden H, Grossman M, Scherer SS, De Jonghe P, Dyck PJ, Klein CJ. Defects of mutant DNMT1 are linked to a spectrum of neurological disorders. Brain. 2015 Apr;138(Pt 4):845-61. doi: 10.1093/brain/awv010. Epub 2015 Feb 11.
- Klein CJ, Bird T, Ertekin-Taner N, Lincoln S, Hjorth R, Wu Y, Kwok J, Mer G, Dyck PJ, Nicholson GA. DNMT1 mutation hot spot causes varied phenotypes of HSAN1 with dementia and hearing loss. Neurology. 2013 Feb 26;80(9):824-8. doi: 10.1212/WNL.0b013e318284076d. Epub 2013 Jan 30.
- Klein CJ, Botuyan MV, Wu Y, Ward CJ, Nicholson GA, Hammans S, Hojo K, Yamanishi H, Karpf AR, Wallace DC, Simon M, Lander C, Boardman LA, Cunningham JM, Smith GE, Litchy WJ, Boes B, Atkinson EJ, Middha S, B Dyck PJ, Parisi JE, Mer G, Smith DI, Dyck PJ. Mutations in DNMT1 cause hereditary sensory neuropathy with dementia and hearing loss. Nat Genet. 2011 Jun;43(6):595-600. doi: 10.1038/ng.830. Epub 2011 May 1.
- Sun Z, Wu Y, Ordog T, Baheti S, Nie J, Duan X, Hojo K, Kocher JP, Dyck PJ, Klein CJ. Aberrant signature methylome by DNMT1 hot spot mutation in hereditary sensory and autonomic neuropathy 1E. Epigenetics. 2014 Aug;9(8):1184-93. doi: 10.4161/epi.29676. Epub 2014 Jul 7.
- Yuan J, Higuchi Y, Nagado T, Nozuma S, Nakamura T, Matsuura E, Hashiguchi A, Sakiyama Y, Yoshimura A, Takashima H. Novel mutation in the replication focus targeting sequence domain of DNMT1 causes hereditary sensory and autonomic neuropathy IE. J Peripher Nerv Syst. 2013 Mar;18(1):89-93. doi: 10.1111/jns5.12012.
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