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CTX causes a distinct array of clinical manifestations

Cerebrotendinous xanthomatosis (CTX) is a rare and underdiagnosed metabolic disorder1-3

CTX is a bile deficiency that is inherited in an autosomal recessive fashion.2 Mutations in the CYP27A1 gene lead to an abnormal buildup of cholesterol and cholestanol throughout the body.2,4,5

There are several signs and symptoms common in CTX3,6

Chronic diarrhea, idiopathic bilateral cataracts and tendon xanthomas are common in CTX. In some patients, neonatal cholestasis may be the earliest manifestation.3,6

Untreated CTX may progress to irreversible neurologic problems3,6

Without early diagnosis and management, neurologic problems can progress, leading to physically disabling neurological dysfunction, psychiatric disturbances, intellectual disability, and even dementia.3,6,7

Potential Signs and Symptoms mean age at diagnosis, Cholestasis/Prolonged Jaundice, Chronic Diarrhea, Idiopathic Bilateral Cataracts, Neurologic Deterioration, and Tendon Xanthomas (blue background)

References: 1. Lorincz MT, et al. Arch Neurol. 2005:62:1459-1463. 2. Gallus GN, et al. Neurol Sci. 2006;27:143-149. 3. Verrips A, et al. Brain. 2000;123:908-919. 4. Rafiq M, et al. Pract Neurol. 2011;11:296-300. 5. Chiang JYL. Front Biosci. 1998;3:176-193. 6. Mignarri A, et al. J Inherit Metab Dis. 2014;37:421-429. 7. Fraidakis MJ. Transl Psychiatry. 2013;3:e302. doi:10.1038/tp.2013.76. 8. Verrips A, et al. Arch Neurol. 2000;57:520-524. 9. Clayton PT, et.al. J Inherit Metab Dis. 2002;25(6):501-513. 10. Federico A, Dotti MT, Gallus GN. Cerebrotendinous xanthomatosis. In: Pagon RA, Adam MP, Ardinger HH, et al, eds. GeneReviews® [Internet]. Seattle, WA: University of Washington, Seattle. 1993-2016. http://www.ncbi.nlm.nih.gov/books/NBK1409/ Updated April 14, 2016. Accessed March 15, 2017.