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Intellectual developmental disorder, autosomal recessive 78(MRT78)

MedGen UID:
1840905
Concept ID:
C5830269
Mental or Behavioral Dysfunction
Synonym: MRT78
 
Gene (location): WDR11 (10q26.12)
 
Monarch Initiative: MONDO:0859373
OMIM®: 620237

Definition

Autosomal recessive intellectual developmental disorder-78 (MRT78) is a neurodevelopmental disorder characterized by impaired intellectual development that is usually mild, but shows variable severity. Affected individuals have microcephaly and mild short stature. Additional features may include ocular abnormalities and mild skeletal defects (Haag et al., 2021). [from OMIM]

Clinical features

From HPO
Cubitus valgus
MedGen UID:
490152
Concept ID:
C0158465
Acquired Abnormality
Abnormal positioning in which the elbows are turned out.
Brachydactyly
MedGen UID:
67454
Concept ID:
C0221357
Congenital Abnormality
Digits that appear disproportionately short compared to the hand/foot. The word brachydactyly is used here to describe a series distinct patterns of shortened digits (brachydactyly types A-E). This is the sense used here.
Clinodactyly of the 5th finger
MedGen UID:
340456
Concept ID:
C1850049
Congenital Abnormality
Clinodactyly refers to a bending or curvature of the fifth finger in the radial direction (i.e., towards the 4th finger).
Sensorineural hearing loss disorder
MedGen UID:
9164
Concept ID:
C0018784
Disease or Syndrome
A type of hearing impairment in one or both ears related to an abnormal functionality of the cochlear nerve.
Febrile seizure (within the age range of 3 months to 6 years)
MedGen UID:
3232
Concept ID:
C0009952
Disease or Syndrome
A febrile seizure is any type of seizure (most often a generalized tonic-clonic seizure) occurring with fever (at least 38 degrees Celsius) but in the absence of central nervous system infection, severe metabolic disturbance or other alternative precipitant in children between the ages of 3 months and 6 years.
Intellectual disability, mild
MedGen UID:
10044
Concept ID:
C0026106
Mental or Behavioral Dysfunction
Mild intellectual disability is defined as an intelligence quotient (IQ) in the range of 50-69.
Intellectual disability, severe
MedGen UID:
48638
Concept ID:
C0036857
Mental or Behavioral Dysfunction
Severe mental retardation is defined as an intelligence quotient (IQ) in the range of 20-34.
Retrognathia
MedGen UID:
19766
Concept ID:
C0035353
Congenital Abnormality
An abnormality in which the mandible is mislocalised posteriorly.
Narrow chest
MedGen UID:
96528
Concept ID:
C0426790
Finding
Reduced width of the chest from side to side, associated with a reduced distance from the sternal notch to the tip of the shoulder.
Delayed skeletal maturation
MedGen UID:
108148
Concept ID:
C0541764
Finding
A decreased rate of skeletal maturation. Delayed skeletal maturation can be diagnosed on the basis of an estimation of the bone age from radiographs of specific bones in the human body.
Kyphoscoliosis
MedGen UID:
154361
Concept ID:
C0575158
Anatomical Abnormality
An abnormal curvature of the spine in both a coronal (lateral) and sagittal (back-to-front) plane.
Microretrognathia
MedGen UID:
326907
Concept ID:
C1839546
Finding
A form of developmental hypoplasia of the mandible in which the mandible is mislocalised posteriorly.
Pectus excavatum
MedGen UID:
781174
Concept ID:
C2051831
Finding
A defect of the chest wall characterized by a depression of the sternum, giving the chest ("pectus") a caved-in ("excavatum") appearance.
Microcephaly
MedGen UID:
1644158
Concept ID:
C4551563
Finding
Head circumference below 2 standard deviations below the mean for age and gender.
Asthma
MedGen UID:
2109
Concept ID:
C0004096
Disease or Syndrome
Asthma is characterized by increased responsiveness of the tracheobronchial tree to multiple stimuli, leading to narrowing of the air passages with resultant dyspnea, cough, and wheezing.
High palate
MedGen UID:
66814
Concept ID:
C0240635
Congenital Abnormality
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).
Hypopigmentation of the skin
MedGen UID:
102477
Concept ID:
C0162835
Disease or Syndrome
A reduction of skin color related to a decrease in melanin production and deposition.
Exotropia
MedGen UID:
4613
Concept ID:
C0015310
Disease or Syndrome
A form of strabismus with one or both eyes deviated outward.
Nystagmus
MedGen UID:
45166
Concept ID:
C0028738
Disease or Syndrome
Rhythmic, involuntary oscillations of one or both eyes related to abnormality in fixation, conjugate gaze, or vestibular mechanisms.
Strabismus
MedGen UID:
21337
Concept ID:
C0038379
Disease or Syndrome
A misalignment of the eyes so that the visual axes deviate from bifoveal fixation. The classification of strabismus may be based on a number of features including the relative position of the eyes, whether the deviation is latent or manifest, intermittent or constant, concomitant or otherwise and according to the age of onset and the relevance of any associated refractive error.
Optic neuropathy
MedGen UID:
854546
Concept ID:
C3887709
Disease or Syndrome
Disorder of the optic nerve.

Recent clinical studies

Etiology

Echaniz-Laguna A, Altuzarra C, Verloes A, De La Banda MGG, Quijano-Roy S, Tudorache RA, Jaxybayeva A, Myrzaliyeva B, Tazir M, Vallat JM, Francou B, Urtizberea JA
Neurogenetics 2021 Oct;22(4):333-341. Epub 2021 Aug 17 doi: 10.1007/s10048-021-00668-z. PMID: 34405299
Smogavec M, Cleall A, Hoyer J, Lederer D, Nassogne MC, Palmer EE, Deprez M, Benoit V, Maystadt I, Noakes C, Leal A, Shaw M, Gecz J, Raymond L, Reis A, Shears D, Brockmann K, Zweier C
J Med Genet 2016 Dec;53(12):820-827. Epub 2016 Jul 20 doi: 10.1136/jmedgenet-2016-103880. PMID: 27439707
Srivastava S, Cohen JS, Vernon H, Barañano K, McClellan R, Jamal L, Naidu S, Fatemi A
Ann Neurol 2014 Oct;76(4):473-83. Epub 2014 Aug 30 doi: 10.1002/ana.24251. PMID: 25131622
Votsi C, Zamba-Papanicolaou E, Middleton LT, Pantzaris M, Christodoulou K
Ann Hum Genet 2014 Jan;78(1):13-22. Epub 2013 Nov 20 doi: 10.1111/ahg.12045. PMID: 24252062
Alazami AM, Schneider SA, Bonneau D, Pasquier L, Carecchio M, Kojovic M, Steindl K, de Kerdanet M, Nezarati MM, Bhatia KP, Degos B, Goh E, Alkuraya FS
Clin Genet 2010 Dec;78(6):585-90. doi: 10.1111/j.1399-0004.2010.01441.x. PMID: 20507343

Diagnosis

Reyes ZMD, Lynch E, Henry J, De Simone LM, Sobotka SA
BMC Med Genomics 2023 Apr 11;16(1):78. doi: 10.1186/s12920-023-01510-1. PMID: 37041529Free PMC Article
Echaniz-Laguna A, Altuzarra C, Verloes A, De La Banda MGG, Quijano-Roy S, Tudorache RA, Jaxybayeva A, Myrzaliyeva B, Tazir M, Vallat JM, Francou B, Urtizberea JA
Neurogenetics 2021 Oct;22(4):333-341. Epub 2021 Aug 17 doi: 10.1007/s10048-021-00668-z. PMID: 34405299
Morlino S, Nardella G, Castellana S, Micale L, Copetti M, Fusco C, Castori M
Am J Med Genet A 2021 Mar;185(3):955-965. Epub 2020 Dec 27 doi: 10.1002/ajmg.a.62047. PMID: 33369135
Smogavec M, Cleall A, Hoyer J, Lederer D, Nassogne MC, Palmer EE, Deprez M, Benoit V, Maystadt I, Noakes C, Leal A, Shaw M, Gecz J, Raymond L, Reis A, Shears D, Brockmann K, Zweier C
J Med Genet 2016 Dec;53(12):820-827. Epub 2016 Jul 20 doi: 10.1136/jmedgenet-2016-103880. PMID: 27439707
Srivastava S, Cohen JS, Vernon H, Barañano K, McClellan R, Jamal L, Naidu S, Fatemi A
Ann Neurol 2014 Oct;76(4):473-83. Epub 2014 Aug 30 doi: 10.1002/ana.24251. PMID: 25131622

Therapy

Reyes ZMD, Lynch E, Henry J, De Simone LM, Sobotka SA
BMC Med Genomics 2023 Apr 11;16(1):78. doi: 10.1186/s12920-023-01510-1. PMID: 37041529Free PMC Article
Matevosyan NR
Arch Gynecol Obstet 2016 Jan;293(1):87-99. Epub 2015 Jun 11 doi: 10.1007/s00404-015-3770-6. PMID: 26063342
Srivastava S, Cohen JS, Vernon H, Barañano K, McClellan R, Jamal L, Naidu S, Fatemi A
Ann Neurol 2014 Oct;76(4):473-83. Epub 2014 Aug 30 doi: 10.1002/ana.24251. PMID: 25131622

Prognosis

Morlino S, Nardella G, Castellana S, Micale L, Copetti M, Fusco C, Castori M
Am J Med Genet A 2021 Mar;185(3):955-965. Epub 2020 Dec 27 doi: 10.1002/ajmg.a.62047. PMID: 33369135
Smogavec M, Cleall A, Hoyer J, Lederer D, Nassogne MC, Palmer EE, Deprez M, Benoit V, Maystadt I, Noakes C, Leal A, Shaw M, Gecz J, Raymond L, Reis A, Shears D, Brockmann K, Zweier C
J Med Genet 2016 Dec;53(12):820-827. Epub 2016 Jul 20 doi: 10.1136/jmedgenet-2016-103880. PMID: 27439707
Srivastava S, Cohen JS, Vernon H, Barañano K, McClellan R, Jamal L, Naidu S, Fatemi A
Ann Neurol 2014 Oct;76(4):473-83. Epub 2014 Aug 30 doi: 10.1002/ana.24251. PMID: 25131622
Srinivasan J, Coleman L, Kornberg AJ
J Paediatr Child Health 2008 Jul-Aug;44(7-8):459-61. doi: 10.1111/j.1440-1754.2008.01340.x. PMID: 18638333

Clinical prediction guides

Echaniz-Laguna A, Altuzarra C, Verloes A, De La Banda MGG, Quijano-Roy S, Tudorache RA, Jaxybayeva A, Myrzaliyeva B, Tazir M, Vallat JM, Francou B, Urtizberea JA
Neurogenetics 2021 Oct;22(4):333-341. Epub 2021 Aug 17 doi: 10.1007/s10048-021-00668-z. PMID: 34405299
Morlino S, Nardella G, Castellana S, Micale L, Copetti M, Fusco C, Castori M
Am J Med Genet A 2021 Mar;185(3):955-965. Epub 2020 Dec 27 doi: 10.1002/ajmg.a.62047. PMID: 33369135
Smogavec M, Cleall A, Hoyer J, Lederer D, Nassogne MC, Palmer EE, Deprez M, Benoit V, Maystadt I, Noakes C, Leal A, Shaw M, Gecz J, Raymond L, Reis A, Shears D, Brockmann K, Zweier C
J Med Genet 2016 Dec;53(12):820-827. Epub 2016 Jul 20 doi: 10.1136/jmedgenet-2016-103880. PMID: 27439707
Mercimek-Mahmutoglu S, Stoeckler-Ipsiroglu S, Adami A, Appleton R, Araújo HC, Duran M, Ensenauer R, Fernandez-Alvarez E, Garcia P, Grolik C, Item CB, Leuzzi V, Marquardt I, Mühl A, Saelke-Kellermann RA, Salomons GS, Schulze A, Surtees R, van der Knaap MS, Vasconcelos R, Verhoeven NM, Vilarinho L, Wilichowski E, Jakobs C
Neurology 2006 Aug 8;67(3):480-4. Epub 2006 Jul 19 doi: 10.1212/01.wnl.0000234852.43688.bf. PMID: 16855203

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