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Joubert syndrome 25(JBTS25)

MedGen UID:
895764
Concept ID:
C4084842
Disease or Syndrome
Synonym: JBTS25
 
Gene (location): CEP104 (1p36.32)
 
Monarch Initiative: MONDO:0014770
OMIM®: 616781

Disease characteristics

Excerpted from the GeneReview: Joubert Syndrome
Classic Joubert syndrome (JS) is characterized by three primary findings: A distinctive cerebellar and brain stem malformation called the molar tooth sign (MTS). Hypotonia. Developmental delays. Often these findings are accompanied by episodic tachypnea or apnea and/or atypical eye movements. In general, the breathing abnormalities improve with age, truncal ataxia develops over time, and acquisition of gross motor milestones is delayed. Cognitive abilities are variable, ranging from severe intellectual disability to normal. Additional findings can include retinal dystrophy, renal disease, ocular colobomas, occipital encephalocele, hepatic fibrosis, polydactyly, oral hamartomas, and endocrine abnormalities. Both intra- and interfamilial variation are seen. [from GeneReviews]
Authors:
Melissa Parisi  |  Ian Glass   view full author information

Additional description

From OMIM
Joubert syndrome-25 is an autosomal recessive ciliopathy characterized by delayed psychomotor development and oculomotor apraxia associated with cerebellar hypoplasia manifest as the molar tooth sign on brain imaging. The clinical manifestations appear to be confined to the neurologic system, as patients tend not to have additional renal, liver, or limb involvement (summary by Srour et al., 2015) For a phenotypic description and a discussion of genetic heterogeneity of Joubert syndrome, see 213300.  http://www.omim.org/entry/616781

Clinical features

From HPO
Cerebellar ataxia
MedGen UID:
849
Concept ID:
C0007758
Disease or Syndrome
Cerebellar ataxia refers to ataxia due to dysfunction of the cerebellum. This causes a variety of elementary neurological deficits including asynergy (lack of coordination between muscles, limbs and joints), dysmetria (lack of ability to judge distances that can lead to under- or overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly).
Cerebellar hypoplasia
MedGen UID:
120578
Concept ID:
C0266470
Congenital Abnormality
Cerebellar hypoplasia is a descriptive term implying a cerebellum with a reduced volume, but a normal shape and is stable over time.
Global developmental delay
MedGen UID:
107838
Concept ID:
C0557874
Finding
A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.
Molar tooth sign on MRI
MedGen UID:
400670
Concept ID:
C1865060
Finding
An abnormal appearance of the midbrain in axial magnetic resonance imaging in which the elongated superior cerebellar peduncles give the midbrain an appearance reminiscent of a molar or wisdom tooth.
Oculomotor apraxia
MedGen UID:
483686
Concept ID:
C3489733
Disease or Syndrome
Ocular motor apraxia is a deficiency in voluntary, horizontal, lateral, fast eye movements (saccades) with retention of slow pursuit movements. The inability to follow objects visually is often compensated by head movements. There may be decreased smooth pursuit, and cancelation of the vestibulo-ocular reflex.
Generalized hypotonia
MedGen UID:
346841
Concept ID:
C1858120
Finding
Generalized muscular hypotonia (abnormally low muscle tone).
Abnormal electroretinogram
MedGen UID:
96908
Concept ID:
C0476397
Finding
Any abnormality of the electrical responses of various cell types in the retina as measured by electroretinography.

Professional guidelines

PubMed

Tang X, Liu C, Liu X, Chen J, Fan X, Liu J, Ma D, Cao G, Chen Z, Xu D, Zhu Y, Jiang X, Cheng L, Wu Y, Hou L, Li Y, Shao X, Zheng S, Zhang A, Zheng B, Jian S, Rong Z, Su Q, Gao X, Rao J, Shen Q, Xu H; Chinese Children Genetic Kidney Disease Database (CCGKDD); “Internet Plus” Nephrology Alliance of the National Center for Children’s Care
J Med Genet 2022 Feb;59(2):147-154. Epub 2020 Dec 15 doi: 10.1136/jmedgenet-2020-107184. PMID: 33323469
Takagi Y, Miura K, Yabuuchi T, Kaneko N, Ishizuka K, Takei M, Yajima C, Ikeuchi Y, Kobayashi Y, Takizawa T, Hisano M, Tsurusaki Y, Matsumoto N, Hattori M
Sci Rep 2021 Jan 11;11(1):462. doi: 10.1038/s41598-020-80712-4. PMID: 33432080Free PMC Article

Recent clinical studies

Etiology

Zhu T, Shen Y, Sun Z, Han X, Wei X, Li W, Lu C, Cheng T, Zou X, Li H, Cao Z, Gao H, Ma X, Luo M, Sui R
Am J Ophthalmol 2023 Apr;248:96-106. Epub 2022 Dec 7 doi: 10.1016/j.ajo.2022.11.023. PMID: 36493848
Simonini C, Floeck A, Strizek B, Mueller A, Gembruch U, Geipel A
Arch Gynecol Obstet 2022 Jul;306(1):71-83. Epub 2021 Oct 1 doi: 10.1007/s00404-021-06265-7. PMID: 34596737Free PMC Article
Tang X, Liu C, Liu X, Chen J, Fan X, Liu J, Ma D, Cao G, Chen Z, Xu D, Zhu Y, Jiang X, Cheng L, Wu Y, Hou L, Li Y, Shao X, Zheng S, Zhang A, Zheng B, Jian S, Rong Z, Su Q, Gao X, Rao J, Shen Q, Xu H; Chinese Children Genetic Kidney Disease Database (CCGKDD); “Internet Plus” Nephrology Alliance of the National Center for Children’s Care
J Med Genet 2022 Feb;59(2):147-154. Epub 2020 Dec 15 doi: 10.1136/jmedgenet-2020-107184. PMID: 33323469
Bachmann-Gagescu R, Dempsey JC, Phelps IG, O'Roak BJ, Knutzen DM, Rue TC, Ishak GE, Isabella CR, Gorden N, Adkins J, Boyle EA, de Lacy N, O'Day D, Alswaid A, Ramadevi A R, Lingappa L, Lourenço C, Martorell L, Garcia-Cazorla À, Ozyürek H, Haliloğlu G, Tuysuz B, Topçu M; University of Washington Center for Mendelian Genomics, Chance P, Parisi MA, Glass IA, Shendure J, Doherty D
J Med Genet 2015 Aug;52(8):514-22. Epub 2015 Jun 19 doi: 10.1136/jmedgenet-2015-103087. PMID: 26092869Free PMC Article
Brancati F, Dallapiccola B, Valente EM
Orphanet J Rare Dis 2010 Jul 8;5:20. doi: 10.1186/1750-1172-5-20. PMID: 20615230Free PMC Article

Diagnosis

Simonini C, Floeck A, Strizek B, Mueller A, Gembruch U, Geipel A
Arch Gynecol Obstet 2022 Jul;306(1):71-83. Epub 2021 Oct 1 doi: 10.1007/s00404-021-06265-7. PMID: 34596737Free PMC Article
Zhu L, Xie L
Medicine (Baltimore) 2017 Dec;96(51):e8626. doi: 10.1097/MD.0000000000008626. PMID: 29390414Free PMC Article
Buke B, Canverenler E, İpek G, Canverenler S, Akkaya H
J Med Ultrason (2001) 2017 Apr;44(2):197-202. Epub 2016 Oct 26 doi: 10.1007/s10396-016-0751-8. PMID: 27785575
Bachmann-Gagescu R, Dempsey JC, Phelps IG, O'Roak BJ, Knutzen DM, Rue TC, Ishak GE, Isabella CR, Gorden N, Adkins J, Boyle EA, de Lacy N, O'Day D, Alswaid A, Ramadevi A R, Lingappa L, Lourenço C, Martorell L, Garcia-Cazorla À, Ozyürek H, Haliloğlu G, Tuysuz B, Topçu M; University of Washington Center for Mendelian Genomics, Chance P, Parisi MA, Glass IA, Shendure J, Doherty D
J Med Genet 2015 Aug;52(8):514-22. Epub 2015 Jun 19 doi: 10.1136/jmedgenet-2015-103087. PMID: 26092869Free PMC Article
Brancati F, Dallapiccola B, Valente EM
Orphanet J Rare Dis 2010 Jul 8;5:20. doi: 10.1186/1750-1172-5-20. PMID: 20615230Free PMC Article

Therapy

Bhaskar P, John J, Sivamurthy SK, Lone RA, Tysarowski PA, Riyas MK, Syed SA, Bhat AN, Sallehuddin A
J Clin Anesth 2013 Sep;25(6):488-90. Epub 2013 Aug 17 doi: 10.1016/j.jclinane.2013.02.013. PMID: 23965207
Saleem SN, Zaki MS
AJNR Am J Neuroradiol 2010 Mar;31(3):424-9. Epub 2009 Nov 26 doi: 10.3174/ajnr.A1867. PMID: 19942698Free PMC Article

Prognosis

Nuovo S, Fuiano L, Micalizzi A, Battini R, Bertini E, Borgatti R, Caridi G, D'Arrigo S, Fazzi E, Fischetto R, Ghiggeri GM, Giordano L, Leuzzi V, Romaniello R, Signorini S, Stringini G, Zanni G, Romani M, Valente EM, Emma F
Nephrol Dial Transplant 2020 Jul 1;35(7):1195-1202. doi: 10.1093/ndt/gfy333. PMID: 30403813Free PMC Article
Zhu L, Xie L
Medicine (Baltimore) 2017 Dec;96(51):e8626. doi: 10.1097/MD.0000000000008626. PMID: 29390414Free PMC Article
Buke B, Canverenler E, İpek G, Canverenler S, Akkaya H
J Med Ultrason (2001) 2017 Apr;44(2):197-202. Epub 2016 Oct 26 doi: 10.1007/s10396-016-0751-8. PMID: 27785575
Brancati F, Dallapiccola B, Valente EM
Orphanet J Rare Dis 2010 Jul 8;5:20. doi: 10.1186/1750-1172-5-20. PMID: 20615230Free PMC Article
Lee SK, Kim DI, Kim J, Kim DJ, Kim HD, Kim DS, Mori S
Radiographics 2005 Jan-Feb;25(1):53-65; discussion 66-8. doi: 10.1148/rg.251045085. PMID: 15653586

Clinical prediction guides

Simonini C, Floeck A, Strizek B, Mueller A, Gembruch U, Geipel A
Arch Gynecol Obstet 2022 Jul;306(1):71-83. Epub 2021 Oct 1 doi: 10.1007/s00404-021-06265-7. PMID: 34596737Free PMC Article
Tang X, Liu C, Liu X, Chen J, Fan X, Liu J, Ma D, Cao G, Chen Z, Xu D, Zhu Y, Jiang X, Cheng L, Wu Y, Hou L, Li Y, Shao X, Zheng S, Zhang A, Zheng B, Jian S, Rong Z, Su Q, Gao X, Rao J, Shen Q, Xu H; Chinese Children Genetic Kidney Disease Database (CCGKDD); “Internet Plus” Nephrology Alliance of the National Center for Children’s Care
J Med Genet 2022 Feb;59(2):147-154. Epub 2020 Dec 15 doi: 10.1136/jmedgenet-2020-107184. PMID: 33323469
Takagi Y, Miura K, Yabuuchi T, Kaneko N, Ishizuka K, Takei M, Yajima C, Ikeuchi Y, Kobayashi Y, Takizawa T, Hisano M, Tsurusaki Y, Matsumoto N, Hattori M
Sci Rep 2021 Jan 11;11(1):462. doi: 10.1038/s41598-020-80712-4. PMID: 33432080Free PMC Article
Zhu L, Xie L
Medicine (Baltimore) 2017 Dec;96(51):e8626. doi: 10.1097/MD.0000000000008626. PMID: 29390414Free PMC Article
Bachmann-Gagescu R, Dempsey JC, Phelps IG, O'Roak BJ, Knutzen DM, Rue TC, Ishak GE, Isabella CR, Gorden N, Adkins J, Boyle EA, de Lacy N, O'Day D, Alswaid A, Ramadevi A R, Lingappa L, Lourenço C, Martorell L, Garcia-Cazorla À, Ozyürek H, Haliloğlu G, Tuysuz B, Topçu M; University of Washington Center for Mendelian Genomics, Chance P, Parisi MA, Glass IA, Shendure J, Doherty D
J Med Genet 2015 Aug;52(8):514-22. Epub 2015 Jun 19 doi: 10.1136/jmedgenet-2015-103087. PMID: 26092869Free PMC Article

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