U.S. flag

An official website of the United States government

Format

Send to:

Choose Destination

Intellectual disability, autosomal recessive 33(MRT33)

MedGen UID:
482169
•Concept ID:
C3280539
•
Mental or Behavioral Dysfunction
Synonym: MRT33
 
Monarch Initiative: MONDO:0013703
OMIM®: 614341

Clinical features

From HPO
Syndactyly
MedGen UID:
52619
•Concept ID:
C0039075
•
Congenital Abnormality
Webbing or fusion of the fingers or toes, involving soft parts only or including bone structure. Bony fusions are referred to as "bony" syndactyly if the fusion occurs in a radio-ulnar axis. Fusions of bones of the fingers or toes in a proximo-distal axis are referred to as "symphalangism".
See: Feature record | Search on this feature
Short toe
MedGen UID:
322858
•Concept ID:
C1836195
•
Finding
A toe that appears disproportionately short compared to the foot.
See: Feature record | Search on this feature
Intellectual disability, moderate
MedGen UID:
7680
•Concept ID:
C0026351
•
Mental or Behavioral Dysfunction
Moderate mental retardation is defined as an intelligence quotient (IQ) in the range of 35-49.
See: Feature record | Search on this feature
Abnormal facial shape
MedGen UID:
98409
•Concept ID:
C0424503
•
Finding
An abnormal morphology (form) of the face or its components.
See: Feature record | Search on this feature
Show allHide all

Professional guidelines

PubMed

Genotype-phenotype correlation in Phelan-McDermid syndrome: A comprehensive review of chromosome 22q13 deleted genes.
Ricciardello A, Tomaiuolo P, Persico AM
Am J Med Genet A 2021 Jul;185(7):2211-2233. Epub 2021 May 5 doi: 10.1002/ajmg.a.62222. PMID: 33949759Free PMC Article
Clinical and genetic characteristics and prenatal diagnosis of patients presented GDD/ID with rare monogenic causes.
Lin L, Zhang Y, Pan H, Wang J, Qi Y, Ma Y
Orphanet J Rare Dis 2020 Nov 11;15(1):317. doi: 10.1186/s13023-020-01599-y. PMID: 33176815Free PMC Article
Clinical and genetic heterogeneity in Dubowitz syndrome: Implications for diagnosis, management and further research.
Innes AM, McInnes BL, Dyment DA
Am J Med Genet C Semin Med Genet 2018 Dec;178(4):387-397. doi: 10.1002/ajmg.c.31661. PMID: 30580484

Recent clinical studies

Etiology

Global developmental delay and intellectual disability in the era of genomics: Diagnosis and challenges in resource limited areas.
Masri AT, Oweis L, Ali M, Hamamy H
Clin Neurol Neurosurg 2023 Jul;230:107799. Epub 2023 May 22 doi: 10.1016/j.clineuro.2023.107799. PMID: 37236004
Genotype-phenotype correlation in Phelan-McDermid syndrome: A comprehensive review of chromosome 22q13 deleted genes.
Ricciardello A, Tomaiuolo P, Persico AM
Am J Med Genet A 2021 Jul;185(7):2211-2233. Epub 2021 May 5 doi: 10.1002/ajmg.a.62222. PMID: 33949759Free PMC Article
Childhood-onset autosomal recessive ataxias: a cross-sectional study from Turkey.
Mutlu-Albayrak H, Kırat E, Gürbüz G
Neurogenetics 2020 Jan;21(1):59-66. Epub 2019 Nov 19 doi: 10.1007/s10048-019-00597-y. PMID: 31741144
Multiple Sulfatase Deficiency: A Case Series With a Novel Mutation.
Hijazi L, Kashgari A, Alfadhel M
J Child Neurol 2018 Nov;33(13):820-824. Epub 2018 Aug 20 doi: 10.1177/0883073818790851. PMID: 30124108
Lissencephaly and other malformations of cortical development: 1995 update.
Dobyns WB, Truwit CL
Neuropediatrics 1995 Jun;26(3):132-47. doi: 10.1055/s-2007-979744. PMID: 7477752

Diagnosis

Intellectual disability and autism in propionic acidemia: a biomarker-behavioral investigation implicating dysregulated mitochondrial biology.
Shchelochkov OA, Farmer CA, Chlebowski C, Adedipe D, Ferry S, Manoli I, Pass A, McCoy S, Van Ryzin C, Sloan J, Thurm A, Venditti CP
Mol Psychiatry 2024 Apr;29(4):974-981. Epub 2024 Jan 11 doi: 10.1038/s41380-023-02385-5. PMID: 38200289Free PMC Article
Spectrum of neuro-genetic disorders in the United Arab Emirates national population.
Saleh S, Beyyumi E, Al Kaabi A, Hertecant J, Barakat D, Al Dhaheri NS, Al-Gazali L, Al Shamsi A
Clin Genet 2021 Nov;100(5):573-600. Epub 2021 Aug 19 doi: 10.1111/cge.14044. PMID: 34374989
Clinical and genetic characteristics and prenatal diagnosis of patients presented GDD/ID with rare monogenic causes.
Lin L, Zhang Y, Pan H, Wang J, Qi Y, Ma Y
Orphanet J Rare Dis 2020 Nov 11;15(1):317. doi: 10.1186/s13023-020-01599-y. PMID: 33176815Free PMC Article
Congenital hepatic fibrosis and autosomal recessive polycystic kidney disease.
Srinath A, Shneider BL
J Pediatr Gastroenterol Nutr 2012 May;54(5):580-7. doi: 10.1097/MPG.0b013e31824711b7. PMID: 22197937Free PMC Article
Nijmegen breakage syndrome.
van der Burgt I, Chrzanowska KH, Smeets D, Weemaes C
J Med Genet 1996 Feb;33(2):153-6. doi: 10.1136/jmg.33.2.153. PMID: 8929954Free PMC Article

Therapy

Case study for the evaluation of current treatment recommendations of guanidinoacetate methyltransferase deficiency: ineffectiveness of sodium benzoate.
Mercimek-Mahmutoglu S, Salomons GS, Chan A
Pediatr Neurol 2014 Jul;51(1):133-7. Epub 2014 Feb 21 doi: 10.1016/j.pediatrneurol.2014.02.011. PMID: 24766785

Prognosis

PIGN encephalopathy: Characterizing the epileptology.
Bayat A, de Valles-Ibáñez G, Pendziwiat M, Knaus A, Alt K, Biamino E, Bley A, Calvert S, Carney P, Caro-Llopis A, Ceulemans B, Cousin J, Davis S, des Portes V, Edery P, England E, Ferreira C, Freeman J, Gener B, Gorce M, Heron D, Hildebrand MS, Jezela-Stanek A, Jouk PS, Keren B, Kloth K, Kluger G, Kuhn M, Lemke JR, Li H, Martinez F, Maxton C, Mefford HC, Merla G, Mierzewska H, Muir A, Monfort S, Nicolai J, Norman J, O'Grady G, Oleksy B, Orellana C, Orec LE, Peinhardt C, Pronicka E, Rosello M, Santos-Simarro F, Schwaibold EMC, Stegmann APA, Stumpel CT, Szczepanik E, Terczyńska I, Thevenon J, Tzschach A, Van Bogaert P, Vittorini R, Walsh S, Weckhuysen S, Weissman B, Wolfe L, Reymond A, De Nittis P, Poduri A, Olson H, Striano P, Lesca G, Scheffer IE, Møller RS, Sadleir LG
Epilepsia 2022 Apr;63(4):974-991. Epub 2022 Feb 18 doi: 10.1111/epi.17173. PMID: 35179230
Genotype-phenotype correlation in Phelan-McDermid syndrome: A comprehensive review of chromosome 22q13 deleted genes.
Ricciardello A, Tomaiuolo P, Persico AM
Am J Med Genet A 2021 Jul;185(7):2211-2233. Epub 2021 May 5 doi: 10.1002/ajmg.a.62222. PMID: 33949759Free PMC Article
A novel homozygous frameshift mutation in the DCC gene in a Pakistani family with autosomal recessive horizontal gaze palsy with progressive scoliosis-2 with impaired intellectual development.
Zaka A, Shahzad S, Rao HZ, Hashim Y, Basit S
Am J Med Genet A 2021 Feb;185(2):355-361. Epub 2020 Nov 3 doi: 10.1002/ajmg.a.61952. PMID: 33141514
Clinical and genetic characteristics and prenatal diagnosis of patients presented GDD/ID with rare monogenic causes.
Lin L, Zhang Y, Pan H, Wang J, Qi Y, Ma Y
Orphanet J Rare Dis 2020 Nov 11;15(1):317. doi: 10.1186/s13023-020-01599-y. PMID: 33176815Free PMC Article
Recessive optic atrophy, sensorimotor neuropathy and cataract associated with novel compound heterozygous mutations in OPA1.
Lee J, Jung SC, Hong YB, Yoo JH, Koo H, Lee JH, Hong HD, Kim SB, Chung KW, Choi BO
Mol Med Rep 2016 Jul;14(1):33-40. Epub 2016 May 4 doi: 10.3892/mmr.2016.5209. PMID: 27150940Free PMC Article

Clinical prediction guides

Intellectual disability and autism in propionic acidemia: a biomarker-behavioral investigation implicating dysregulated mitochondrial biology.
Shchelochkov OA, Farmer CA, Chlebowski C, Adedipe D, Ferry S, Manoli I, Pass A, McCoy S, Van Ryzin C, Sloan J, Thurm A, Venditti CP
Mol Psychiatry 2024 Apr;29(4):974-981. Epub 2024 Jan 11 doi: 10.1038/s41380-023-02385-5. PMID: 38200289Free PMC Article
PIGN encephalopathy: Characterizing the epileptology.
Bayat A, de Valles-Ibáñez G, Pendziwiat M, Knaus A, Alt K, Biamino E, Bley A, Calvert S, Carney P, Caro-Llopis A, Ceulemans B, Cousin J, Davis S, des Portes V, Edery P, England E, Ferreira C, Freeman J, Gener B, Gorce M, Heron D, Hildebrand MS, Jezela-Stanek A, Jouk PS, Keren B, Kloth K, Kluger G, Kuhn M, Lemke JR, Li H, Martinez F, Maxton C, Mefford HC, Merla G, Mierzewska H, Muir A, Monfort S, Nicolai J, Norman J, O'Grady G, Oleksy B, Orellana C, Orec LE, Peinhardt C, Pronicka E, Rosello M, Santos-Simarro F, Schwaibold EMC, Stegmann APA, Stumpel CT, Szczepanik E, Terczyńska I, Thevenon J, Tzschach A, Van Bogaert P, Vittorini R, Walsh S, Weckhuysen S, Weissman B, Wolfe L, Reymond A, De Nittis P, Poduri A, Olson H, Striano P, Lesca G, Scheffer IE, Møller RS, Sadleir LG
Epilepsia 2022 Apr;63(4):974-991. Epub 2022 Feb 18 doi: 10.1111/epi.17173. PMID: 35179230
Sanjad Sakati syndrome and sleep-disordered breathing: an undisclosed association.
Al-Yaarubi S, Al-Abri AS, Al-Kindi H, Al-Abri M, Naz T, Khater D
Sleep Breath 2022 Jun;26(2):815-821. Epub 2021 Aug 9 doi: 10.1007/s11325-021-02463-4. PMID: 34368942
Genotype-phenotype correlation in Phelan-McDermid syndrome: A comprehensive review of chromosome 22q13 deleted genes.
Ricciardello A, Tomaiuolo P, Persico AM
Am J Med Genet A 2021 Jul;185(7):2211-2233. Epub 2021 May 5 doi: 10.1002/ajmg.a.62222. PMID: 33949759Free PMC Article
Phenotypic and molecular spectrum of pyridoxamine-5'-phosphate oxidase deficiency: A scoping review of 87 cases of pyridoxamine-5'-phosphate oxidase deficiency.
Alghamdi M, Bashiri FA, Abdelhakim M, Adly N, Jamjoom DZ, Sumaily KM, Alghanem B, Arold ST
Clin Genet 2021 Jan;99(1):99-110. Epub 2020 Sep 16 doi: 10.1111/cge.13843. PMID: 32888189Free PMC Article

Supplemental Content

Table of contents

    Clinical resources

    Practice guidelines

    • PubMed
      See practice and clinical guidelines in PubMed. The search results may include broader topics and may not capture all published guidelines. See the FAQ for details.

    Reviews

    Related information

    • OMIM
      Related records in OMIM
    • PMC Articles
      Related information in PubMed Central Links
    • PubMed
      Related literature resources in PubMed

    Recent activity

    Clear Turn Off Turn On

    Your browsing activity is empty.

    Activity recording is turned off.

    Turn recording back on

    See more...