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词条 Jalili syndrome
释义

  1. Presentation

  2. Genetics

  3. Management

  4. Symptoms

  5. Epidemiology

  6. References

  7. Further reading

  8. External links

{{Infobox medical condition (new)
| synonyms = Cone rod dystrophy-amelogenesis imperfecta syndrome
| name = Jalili syndrome
| image = Autosomal recessive - en.svg
| caption = Jalili syndrome is inherited via an autosomal recessive manner
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}}Jalili syndrome is a genetic disorder characterized by the combination of cone-rod dystrophy of the retina and amelogenesis imperfecta.[1] It was characterized in 1988 by Dr. I. K. Jalili and Dr. N. J. D. Smith, following the examination of 29 members of an inbred, Arab family living within the Gaza Strip.[1]

Presentation

Affected individuals commonly suffer from photophobia, nystagmus and achromatopsia. Other symptoms affecting vision may include night vision difficulties;[2] optic disc pallor; narrow vessels; macular atrophy with pigment mottling; peripheral deep white dot deposits or retinal pigment epithelium (RPE) alterations in the inferonasal retina; decreased foveal and retinal thickness; attenuation of retinal lamination; hyperreflectivity in the choroids (due to RPE and choriocapillaris atrophy);[3] impairment of color vision; and progressive loss of vision with advancing age.[4]

In line with ameleogenesis imperfecta, affected members may display teeth yellow-brown in colour, dysplastic, presenting numerous caries;[3] reduced enamel layer prone to posteruptive failure; and abnormality of morphology involving dentine.[4]

Genetics

The Jalili syndrome is caused by different mutations all with a linkage at the achromatopsia locus 2q11 on the metal transporter gene, CNNM4. Sequence analysis of this gene within Jalili syndrome sufferers has identified homozygosity or compound heterozygosity for several different mutations in the CNNM4 gene.[5][6][7][8]

Management

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Symptoms

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Epidemiology

The distribution of Jalili syndrome sufferers is varied. Instances, beyond the Gaza strip patients who characterized the syndrome, include a two generation family from Kosovo who presented in the first few years of life with autosomal recessive cone-rod dystrophy and the hypoplastic/hypomineralized variant of amelogenesis imperfecta,[2] a sister and brother from Kosovo who presented at ages 14 and 7 respectively with dysplastic and discoloured decidual and permanent teeth,[3] and a five generation Lebanese family with two sisters and a male cousin presenting ocular and dental phenotypes akin to the Kosovan siblings.[3]

In 2009, new examinations of the original Palestinian and Kosovan families reported by Jalili and Smith in 1988 and Michaelides et al. in 2004, led to the discovery of five additional cases displayed across genetically unconnected families from varying ethnicities, leading to the proposal of the term “Jalili syndrome” by Parry et al.[4]

References

1. ^{{cite journal |pages=738–40 |pmc=1051576 |doi=10.1136/jmg.25.11.738 |title=A progressive cone-rod dystrophy and amelogenesis imperfecta: A new syndrome |year=1988 |last1=Jalili |first1=I K |last2=Smith |first2=N J |journal=Journal of Medical Genetics |volume=25 |issue=11 |pmid=3236352}}
2. ^{{cite journal |pages=468–73 |pmc=1735797 |doi=10.1136/jmg.2003.015792 |title=An autosomal recessive cone-rod dystrophy associated with amelogenesis imperfecta |year=2004 |last1=Michaelides |first1=M |journal=Journal of Medical Genetics |volume=41 |issue=6 |pmid=15173235 |last2=Bloch-Zupan |first2=A |last3=Holder |first3=GE |last4=Hunt |first4=DM |last5=Moore |first5=AT}}
3. ^{{cite journal |pages=259–65 |doi=10.1016/j.ajhg.2009.01.006 |pmc=2668018 |title=Mutations in CNNM4 Cause Recessive Cone-Rod Dystrophy with Amelogenesis Imperfecta |year=2009 |last1=Polok |first1=Bozena |last2=Escher |first2=Pascal |last3=Ambresin |first3=Aude |last4=Chouery |first4=Eliane |last5=Bolay |first5=Sylvain |last6=Meunier |first6=Isabelle |last7=Nan |first7=Francis |last8=Hamel |first8=Christian |last9=Munier |first9=Francis L. |journal=The American Journal of Human Genetics |volume=84 |issue=2 |pmid=19200527 }}
4. ^{{cite journal |pages=266–73 |doi=10.1016/j.ajhg.2009.01.009 |pmc=2668026 |title=Mutations in CNNM4 Cause Jalili Syndrome, Consisting of Autosomal-Recessive Cone-Rod Dystrophy and Amelogenesis Imperfecta |year=2009 |last1=Parry |first1=David A. |last2=Mighell |first2=Alan J. |last3=El-Sayed |first3=Walid |last4=Shore |first4=Roger C. |last5=Jalili |first5=Ismail K. |last6=Dollfus |first6=Hélène |last7=Bloch-Zupan |first7=Agnes |last8=Carlos |first8=Roman |last9=Carr |first9=Ian M. |journal=The American Journal of Human Genetics |volume=84 |issue=2 |pmid=19200525 }}
5. ^http://omim.org/entry/607805#0001{{full|date=November 2012}}
6. ^http://omim.org/entry/607805#0002{{full|date=November 2012}}
7. ^http://omim.org/entry/607805#0003{{full|date=November 2012}}
8. ^http://omim.org/entry/607805#0007{{full|date=November 2012}}

Further reading

  • {{cite journal |pages=865–9 |doi=10.1038/sj.ejhg.5200884 |title=Identification of a locus on chromosome 2q11 at which recessive amelogenesis imperfecta and cone-rod dystrophy cosegregate |year=2002 |last1=Downey |first1=Louise M |last2=Keen |first2=T Jeffrey |last3=Jalili |first3=Ismail K |last4=McHale |first4=John |last5=Aldred |first5=Michael J |last6=Robertson |first6=Steven P |last7=Mighell |first7=Alan |last8=Fayle |first8=Steven |last9=Wissinger |first9=Bernd |journal=European Journal of Human Genetics |volume=10 |issue=12 |pmid=12461695 }}
  • {{cite journal |pages=738–40 |pmc=1051576 |doi=10.1136/jmg.25.11.738 |title=A progressive cone-rod dystrophy and amelogenesis imperfecta: A new syndrome |year=1988 |last1=Jalili |first1=I K |last2=Smith |first2=N J |journal=Journal of Medical Genetics |volume=25 |issue=11 |pmid=3236352}}
  • {{cite journal |pages=468–73 |pmc=1735797 |doi=10.1136/jmg.2003.015792 |title=An autosomal recessive cone-rod dystrophy associated with amelogenesis imperfecta |year=2004 |last1=Michaelides |first1=M |journal=Journal of Medical Genetics |volume=41 |issue=6 |pmid=15173235 |last2=Bloch-Zupan |first2=A |last3=Holder |first3=GE |last4=Hunt |first4=DM |last5=Moore |first5=AT}}
  • {{cite journal |pages=266–73 |doi=10.1016/j.ajhg.2009.01.009 |pmc=2668026 |title=Mutations in CNNM4 Cause Jalili Syndrome, Consisting of Autosomal-Recessive Cone-Rod Dystrophy and Amelogenesis Imperfecta |year=2009 |last1=Parry |first1=David A. |last2=Mighell |first2=Alan J. |last3=El-Sayed |first3=Walid |last4=Shore |first4=Roger C. |last5=Jalili |first5=Ismail K. |last6=Dollfus |first6=Hélène |last7=Bloch-Zupan |first7=Agnes |last8=Carlos |first8=Roman |last9=Carr |first9=Ian M. |journal=The American Journal of Human Genetics |volume=84 |issue=2 |pmid=19200525 }}
  • {{cite journal |pages=259–65 |doi=10.1016/j.ajhg.2009.01.006 |pmc=2668018 |title=Mutations in CNNM4 Cause Recessive Cone-Rod Dystrophy with Amelogenesis Imperfecta |year=2009 |last1=Polok |first1=Bozena |last2=Escher |first2=Pascal |last3=Ambresin |first3=Aude |last4=Chouery |first4=Eliane |last5=Bolay |first5=Sylvain |last6=Meunier |first6=Isabelle |last7=Nan |first7=Francis |last8=Hamel |first8=Christian |last9=Munier |first9=Francis L. |journal=The American Journal of Human Genetics |volume=84 |issue=2 |pmid=19200527 }}
  • Jalili, I.K. Cone-rod dystrophy and amelogenesis imperfecta (Jalili syndrome): phenotypes and environs. Eye (2010) 24, 1659–1668; doi:10.1038/eye.2010.103.

External links

{{Medical resources
| DiseasesDB =
| ICD10 = H35.5
| ICD9 =
| ICDO =
| OMIM = 217080
| MedlinePlus =
| eMedicineSubj =
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| MeshID =
| Orphanet = 1873
}}
  • OMIM Database (Jalili Syndrome)

3 : Rare syndromes|Autosomal recessive disorders|Syndromes affecting the eyes

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