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{{Infobox_Disease |
{{Infobox medical condition (new)
  Name           = {{PAGENAME}} |
| synonyms        = Brachydactyly-intellectual disability syndrome, Albright hereditary osteodystrophy type 3
  Image          = |
| name            = 2q37 deletion syndrome
  Caption       = |
| image           = File:Autosomal dominant - en.svg
   DiseasesDB    = 34425 |
| caption        = 2q37 deletion syndrome is inherited in an autosomal dominant manner
  ICD10          = |
| pronounce      =  
  ICD9           = |
| field          = 
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| symptoms       =  
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| complications   =  
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  eMedicineSubj  = |
| duration        =
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| types           =  
  MeshID        = |
| causes          =
| risks           =  
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{{SI}}
'''2q37 deletion syndrome''' is a disorder caused by the deletion of a small piece of [[chromosome 2]] in which one or more of 3 sub-bands, 2q37.1, 2q37.2, and 2q37.3, of the last band of one of the chromosome 2’s long arms are deleted.<ref name=Leroy>{{cite journal|author=Leroy C.|author2=E. Landais|author3=S. Briault |author4= A. David|author5=O. Tassy|author6=N. Gruchy|author7=B. Delobel|author8=M. J. Grégoire|author9=B. Leheup|author10= L. Taine|author11=D. Lacombe|author12=M.A. Delrue|author13=A. Toutain|author14=A. Paubel|author15=F. Mugneret|author16=C. Thauvin-Robinet|author17=S. Arpin|author18=C. Le Caignec|author19=P. Jonveaux|author20=M. Beri|author21=N. Leporrier|author22= J. Motte|author23=C. Fiquet|author24=O. Brichet|author25=M. Mozelle-Nivoix|author26=P. Sabouraud|author27=N. Golovkine|author28=N. Bednarek|author29=D. Gaillard|author30=M. Doco-Fenzy|title=The 2q37-deletion syndrome: an update of the clinical spectrum including overweight, brachydactyly and behavioural features in 14 new patients|journal=European Journal of Human Genetics|date=Jun 2013|volume=21|issue=6|pages=602–12|doi=10.1038/ejhg.2012.230|pmid=23073310|pmc=3658200}}</ref> The first report of this disorder was in 1989.<ref name=Leroy/>


==Symptoms==
The earliest signs and symptoms occur in newborns and consist of [[hypotonia]], but show up in youth as developmental delays, low muscle tone, learning disabilities, being overweight, [[autism]]-like symptoms, [[seizures]], [[eczema]], [[asthma]], chest and ear infections, and abnormalities in face, hands, and feet such as [[brachydactyly]].<ref name="pmid16762827">{{cite journal |vauthors=Chaabouni M, Le Merrer M, Raoul O |title=Molecular cytogenetic analysis of five 2q37 deletions: refining the brachydactyly candidate region |journal=European Journal of Medical Genetics |volume=49 |issue=3 |pages=255–63 |year=2006 |pmid=16762827 |doi=10.1016/j.ejmg.2005.07.001|display-authors=etal}}</ref><ref name="support group">{{cite web|title=2q37 deletion syndrome|url=http://www.rarechromo.org/information/Chromosome%20%202/2q37%20deletion%20syndrome%20FTNW.pdf|publisher=Rare Chromosome Disorder Support Group|accessdate=8 April 2015}}</ref>


'''2q37 deletion syndrome''' is a disorder caused by the deletion of a small piece of [[chromosome 2]].
Autism-like symptoms consist of odd obsessions, repetitive behavior, poor use of eye contact, impaired speech, poor understanding of others’ emotions, idiosyncratic use of words or phrases.<ref name="support group"/>


It has been associated with [[Wilms' tumor]]<ref name="pmid9650765">{{cite journal |author=Viot-Szoboszlai G, Amiel J, Doz F, ''et al'' |title=Wilms' tumor and gonadal dysgenesis in a child with the 2q37.1 deletion syndrome |journal=Clin. Genet. |volume=53 |issue=4 |pages=278–80 |year=1998 |pmid=9650765 |doi=}}</ref> and [[brachydactyly]].<ref name="pmid16762827">{{cite journal |author=Chaabouni M, Le Merrer M, Raoul O, ''et al'' |title=Molecular cytogenetic analysis of five 2q37 deletions: refining the brachydactyly candidate region |journal=European journal of medical genetics |volume=49 |issue=3 |pages=255–63 |year=2006 |pmid=16762827 |doi=10.1016/j.ejmg.2005.07.001}}</ref>
People with this disorder also tend to have a characteristic appearance, including prominent forehead, thin, highly arched eyebrows, depressed nasal bridge, full cheeks, deficient nasal alae and prominent columella, thin upper lip, and various minor anomalies of the pinnae.<ref>{{cite journal|author=Falk, R.E.|author2=K. A. Casas|last-author-amp=yes|title=Chromosome 2q37 deletion: Clinical and molecular aspects|journal=Journal of Medical Genetics|date=15 Nov 2007|volume=145C|issue=4|pages=357–371|doi=10.1002/ajmg.c.30153|pmid=17910077}}</ref>
 
Heart, brain, gastrointestinal, and kidney problems such as [[Wilms tumor]]<ref name="pmid9650765">{{cite journal |vauthors=Viot-Szoboszlai G, Amiel J, Doz F |title=Wilms' tumor and gonadal dysgenesis in a child with the 2q37.1 deletion syndrome |journal=Clin. Genet. |volume=53 |issue=4 |pages=278–80 |year=1998 |pmid=9650765 |doi=10.1111/j.1399-0004.1998.tb02696.x|display-authors=etal}}</ref> and , hernias, spinal curvatures, Osteopenia, hearing and sight difficulties can also occur.<ref name="support group"/>
 
==Diagnosis==
Techniques used to diagnose this disorder are fluorescence in situ hybridization (FISH) and microarrays.<ref name="support group"/> FISH uses fluorescent dyes to visualize sections under a microscope, but some changes are too small to see.<ref name="support group"/> Microarray comparative genomic hybridization (array CGH) shows changes in small amounts DNA on chromosomes.<ref name="support group"/>
 
==Treatment==
Therapy can help developmental delays, as well as physiotherapy for the low muscle tone.<ref name="support group"/> Exercise and healthy eating can reduce weight gain. Treatments are available for seizures, eczema, asthma, infections, and certain bodily ailments.
 
==Prognosis==
While only a few adults have been reported with 2q37 microdeletion syndrome, it is predicted that this number will rise as various research studies continue to demonstrate that most with the disorder do not have a shortened life span.<ref>{{cite journal|author=Emily S Doherty|author2=Felicitas L Lacbawan|last-author-amp=yes|title=2q37 Microdeletion Syndrome|journal=GeneReviews|date=3 May 2007|pages=18|url=https://www.ncbi.nlm.nih.gov/books/NBK1158/|accessdate=8 April 2015}}</ref>


==See also==
==See also==
* [[GPC1]]
* [[GPC1]]
* [[2q37 monosomy]]


==References==
==References==
<references/>
{{reflist}}


==External links==
== External links ==
{{Medical resources
|  DiseasesDB    = 34425
|  ICD10          = Q93.5
|  ICD9          = 
|  ICDO          =
|  OMIM          =
|  MedlinePlus    =
|  eMedicineSubj  =
|  eMedicineTopic =
|  MeshID        = C538317
}}
* [http://www.genetests.org/profiles/del2q37.2 GeneReviews: 2q37 deletion syndrome]
* [http://www.genetests.org/profiles/del2q37.2 GeneReviews: 2q37 deletion syndrome]


[[Category:Genetic disorders with no OMIM]]
[[Category:Syndromes with tumors]]
[[Category:Genes on human chromosome 2]]
[[Category:Syndromes affecting the kidneys]]
[[Category:Syndromes with seizures]]
[[Category:Syndromes with craniofacial abnormalities]]


 
[[pl:Zespół delecji 2q37]]
[[Category:Genetic disorders]]
[[Category:Pediatrics]]
 
{{WikiDoc Help Menu}}
{{WikiDoc Sources}}

Latest revision as of 13:56, 15 January 2019

2q37 deletion syndrome
SynonymsBrachydactyly-intellectual disability syndrome, Albright hereditary osteodystrophy type 3
File:Autosomal dominant - en.svg
2q37 deletion syndrome is inherited in an autosomal dominant manner
SpecialtyLua error in Module:WikidataIB at line 609: attempt to index field 'wikibase' (a nil value).

2q37 deletion syndrome is a disorder caused by the deletion of a small piece of chromosome 2 in which one or more of 3 sub-bands, 2q37.1, 2q37.2, and 2q37.3, of the last band of one of the chromosome 2’s long arms are deleted.[1] The first report of this disorder was in 1989.[1]

Symptoms

The earliest signs and symptoms occur in newborns and consist of hypotonia, but show up in youth as developmental delays, low muscle tone, learning disabilities, being overweight, autism-like symptoms, seizures, eczema, asthma, chest and ear infections, and abnormalities in face, hands, and feet such as brachydactyly.[2][3]

Autism-like symptoms consist of odd obsessions, repetitive behavior, poor use of eye contact, impaired speech, poor understanding of others’ emotions, idiosyncratic use of words or phrases.[3]

People with this disorder also tend to have a characteristic appearance, including prominent forehead, thin, highly arched eyebrows, depressed nasal bridge, full cheeks, deficient nasal alae and prominent columella, thin upper lip, and various minor anomalies of the pinnae.[4]

Heart, brain, gastrointestinal, and kidney problems such as Wilms tumor[5] and , hernias, spinal curvatures, Osteopenia, hearing and sight difficulties can also occur.[3]

Diagnosis

Techniques used to diagnose this disorder are fluorescence in situ hybridization (FISH) and microarrays.[3] FISH uses fluorescent dyes to visualize sections under a microscope, but some changes are too small to see.[3] Microarray comparative genomic hybridization (array CGH) shows changes in small amounts DNA on chromosomes.[3]

Treatment

Therapy can help developmental delays, as well as physiotherapy for the low muscle tone.[3] Exercise and healthy eating can reduce weight gain. Treatments are available for seizures, eczema, asthma, infections, and certain bodily ailments.

Prognosis

While only a few adults have been reported with 2q37 microdeletion syndrome, it is predicted that this number will rise as various research studies continue to demonstrate that most with the disorder do not have a shortened life span.[6]

See also

References

  1. ↑ 1.0 1.1 Leroy C.; E. Landais; S. Briault; A. David; O. Tassy; N. Gruchy; B. Delobel; M. J. Grégoire; B. Leheup; L. Taine; D. Lacombe; M.A. Delrue; A. Toutain; A. Paubel; F. Mugneret; C. Thauvin-Robinet; S. Arpin; C. Le Caignec; P. Jonveaux; M. Beri; N. Leporrier; J. Motte; C. Fiquet; O. Brichet; M. Mozelle-Nivoix; P. Sabouraud; N. Golovkine; N. Bednarek; D. Gaillard; M. Doco-Fenzy (Jun 2013). "The 2q37-deletion syndrome: an update of the clinical spectrum including overweight, brachydactyly and behavioural features in 14 new patients". European Journal of Human Genetics. 21 (6): 602–12. doi:10.1038/ejhg.2012.230. PMC 3658200. PMID 23073310.
  2. ↑ Chaabouni M, Le Merrer M, Raoul O, et al. (2006). "Molecular cytogenetic analysis of five 2q37 deletions: refining the brachydactyly candidate region". European Journal of Medical Genetics. 49 (3): 255–63. doi:10.1016/j.ejmg.2005.07.001. PMID 16762827.
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 "2q37 deletion syndrome" (PDF). Rare Chromosome Disorder Support Group. Retrieved 8 April 2015.
  4. ↑ Falk, R.E. & K. A. Casas (15 Nov 2007). "Chromosome 2q37 deletion: Clinical and molecular aspects". Journal of Medical Genetics. 145C (4): 357–371. doi:10.1002/ajmg.c.30153. PMID 17910077.
  5. ↑ Viot-Szoboszlai G, Amiel J, Doz F, et al. (1998). "Wilms' tumor and gonadal dysgenesis in a child with the 2q37.1 deletion syndrome". Clin. Genet. 53 (4): 278–80. doi:10.1111/j.1399-0004.1998.tb02696.x. PMID 9650765.
  6. ↑ Emily S Doherty & Felicitas L Lacbawan (3 May 2007). "2q37 Microdeletion Syndrome". GeneReviews: 18. Retrieved 8 April 2015.

External links

Classification
[[d:Lua error in Module:WikidataIB/sandbox at line 2057: attempt to index field 'wikibase' (a nil value). |D]]
External resources
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