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  3. HIVEP2-related intellectual disability
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HIVEP2-related intellectual disability


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Other Names:
Autosomal dominant intellectual disability-43

Summary Summary


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HIVEP2-related intellectual disability is a neurological disorder characterized by intellectual disability, developmental delay, and variable physical features. Early symptoms include poor muscle tone (hypotonia) and delays in the devlopment of motor skills like sitting, standing, and walking. Speech is also affected, with many children never talking or saying only a few words. Common physical features include crossed and widely spaced eyes, high forehead, broad nose root, and tapering fingers. Additional less common signs and symptoms may include a very small head (microcephaly), vision problems, constipation, feeding difficulties, seizures and behavioral problems such as autism, attention deficit, defiance, and anxiety.[1][2]

HIVEP2-related intellectual disability is caused by mutations in the HIVEP2 gene.  Inheritance is autosomal dominant. Treatment depends on the symptoms, and may include behavioral, physical and speech therapy.[1][3]  
Last updated: 12/6/2016

Symptoms Symptoms


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This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

Showing of 22 |
Medical Terms Other Names
Learn More:
HPO ID
5%-29% of people have these symptoms
Cerebral atrophy
Degeneration of cerebrum
0002059
Hypoplasia of the corpus callosum
Underdevelopment of part of brain called corpus callosum
0002079
Microcephaly
Abnormally small skull
Decreased circumference of cranium
Decreased size of skull
Reduced head circumference
Small head circumference
[ more ]
0000252
Seizure 0001250
Percent of people who have these symptoms is not available through HPO
Abnormal facial shape
Unusual facial appearance
0001999
Absent speech
Absent speech development
Lack of language development
Lack of speech
No speech development
No speech or language development
Nonverbal
[ more ]
0001344
Anxiety
Excessive, persistent worry and fear
0000739
Autistic behavior 0000729
Autosomal dominant inheritance 0000006
Constipation 0002019
Feeding difficulties
Feeding problems
Poor feeding
[ more ]
0011968
Gastroesophageal reflux
Acid reflux
Acid reflux disease
Heartburn
[ more ]
0002020
Generalized hypotonia
Decreased muscle tone
Low muscle tone
[ more ]
0001290
Global developmental delay 0001263
Hyperactivity
More active than typical
0000752
Impulsivity
Impulsive
0100710
Infantile onset
Onset in first year of life
Onset in infancy
[ more ]
0003593
Intellectual disability
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation
[ more ]
0001249
Narrow mouth
Small mouth
0000160
Prominent nasal bridge
Elevated nasal bridge
High nasal bridge
Prominent bridge of nose
Prominent nasal root
Protruding bridge of nose
Protruding nasal bridge
[ more ]
0000426
Tapered finger
Tapered fingertips
Tapering fingers
[ more ]
0001182
Wide nasal bridge
Broad nasal bridge
Broad nasal root
Broadened nasal bridge
Increased breadth of bridge of nose
Increased breadth of nasal bridge
Increased width of bridge of nose
Increased width of nasal bridge
Nasal bridge broad
Wide bridge of nose
Widened nasal bridge
[ more ]
0000431
Showing of 22 |
Do you have more information about symptoms of this disease? We want to hear from you.
Last updated: 2/1/2021
Do you have updated information on this disease? We want to hear from you.

Find a Specialist Find a Specialist


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If you need medical advice, you can look for doctors or other healthcare professionals who have experience with this disease. You may find these specialists through advocacy organizations, clinical trials, or articles published in medical journals. You may also want to contact a university or tertiary medical center in your area, because these centers tend to see more complex cases and have the latest technology and treatments.

If you can’t find a specialist in your local area, try contacting national or international specialists. They may be able to refer you to someone they know through conferences or research efforts. Some specialists may be willing to consult with you or your local doctors over the phone or by email if you can't travel to them for care.

You can find more tips in our guide, How to Find a Disease Specialist. We also encourage you to explore the rest of this page to find resources that can help you find specialists.

Healthcare Resources

  • To find a medical professional who specializes in genetics, you can ask your doctor for a referral or you can search for one yourself. Online directories are provided by the American College of Medical Genetics and the National Society of Genetic Counselors. If you need additional help, contact a GARD Information Specialist. You can also learn more about genetic consultations from MedlinePlus Genetics.

Research Research


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Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.

Patient Registry

  • A registry supports research by collecting of information about patients that share something in common, such as being diagnosed with HIVEP2-related intellectual disability. The type of data collected can vary from registry to registry and is based on the goals and purpose of that registry. Some registries collect contact information while others collect more detailed medical information. Learn more about registries.

    Registries for HIVEP2-related intellectual disability:
    Simons SearchLight
     

Learn More Learn More


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These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

Where to Start

  • Genetics Home Reference (GHR) contains information on HIVEP2-related intellectual disability. This website is maintained by the National Library of Medicine.

In-Depth Information

  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 

News & Events News & Events


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News

  • Rare Disease Day at NIH 2021
    March 1, 2021

GARD Answers GARD Answers


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Questions sent to GARD may be posted here if the information could be helpful to others. We remove all identifying information when posting a question to protect your privacy. If you do not want your question posted, please let us know.

Have a question? Contact a GARD Information Specialist.

References References


  1. Steinfeld H & cols. Mutations in HIVEP2 are associated with developmental delay, intellectual disability and dysmorphic features. Neurogenetics. 2016; 17(3):159-164. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4907844/.
  2. HIVEP2-related intellectual disability. Genetics Home Reference. March 7, 2017; https://ghr.nlm.nih.gov/condition/hivep2-related-intellectual-disability#inheritance.
  3. Srivastava S. Loss-of-function variants in HIVEP2 are a cause of intellectual disability. Eur J Hum Genet. April, 2016; 24(4):556-61. https://www.ncbi.nlm.nih.gov/pubmed/26153216.
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