Cerebrotendinous xanthomatosis

Cerebrotendinous xanthomatosis
Other namesCerebral cholesterosis
Cerebrotendinous xanthomatosis has an autosomal recessive pattern of inheritance.
SpecialtyMedical genetics, endocrinology Edit this on Wikidata

Cerebrotendinous xanthomatosis (CTX), also called cerebral cholesterosis,[1] is a rare inborn bile acid metabolism disorder caused by autosomal-recessive mutations in the CYP27A1 gene.[2] CTX is characterized by a wide range of symptoms, including neurological and non-neurological issues.

The average age of symptom onset is 19 years, with central nervous system symptoms being the first indications. Neurological characteristics include Parkinsonism, epilepsy, dystonia, progressive ataxia, palatal myoclonus, intellectual disability, dementia, and psychiatric symptoms. CTX often results in cataracts during childhood. Adults with CTX often experience optic disk paleness and other ocular problems. Clinical symptoms include cardiovascular disease and premature atherosclerosis, with patients experiencing elevated levels of 27-hydroxycholesterol and decreased high-density lipoprotein cholesterol. CTX patients often experience osteoporosis and recurrent bone fractures, with gait abnormalities and little bone mass increasing the risk of falls. Chronic and intractable diarrhea is a common symptom, and gallstones, cholecystic polypus, and newborn cholestatic jaundice are also observed in some CTX patients. Xanthomas, typically developing in the second or third decade of life, can originate on various tendons.

The CYP27A1 gene, responsible for bile acid production, is mutated, reducing chenodeoxycholic acid and cholic acid, leading to increased synthesis of 7α-hydroxy-4-cholesten-3-one, precursor to cholestanol. This leads to cholesterol being converted into cholestanol and bile alcohol, causing tissue accumulation and various organ-related symptoms.

CTX diagnosis involves molecular genetic analysis, neuroimaging, biochemical testing, and clinical findings.

CTX management includes surgery, replacement therapy, and additional symptomatic treatment. Bile acids like taurocholic acid, ursodeoxycholic acid (UDCA), cholic acid, and chenodeoxycholic acid (CDCA) are often used. CDCA treatment is preferred for both neurological and non-neurological symptoms. Symptomatic treatment is crucial due to the wide range of symptoms associated with CTX.

Signs and symptoms

Cerebrotendinous xanthomatosis manifests in a variety of ways, including several organs and a wide spectrum of neurological and non-neurological symptoms.[3] For CTX patients, the average age of symptom onset is 19 years.[4]

In patients with CTX, central nervous system symptoms and signs are frequently present and can serve as the first indications. Parkinsonism and epilepsy are the first neurological conditions associated with CTX.[5][6] A wide range of neurological characteristics associated with CTX have been documented in the literature; these characteristics include dystonia, progressive ataxia, palatal myoclonus, intellectual disability, dementia, and psychiatric symptoms (such as behavioral changes, depression, agitation, hallucinations, and suicidal thoughts).[2]

One common indicator of CTX is cataract that develops in childhood.[7] It has been highlighted that this is an early symptom that comes before neurological symptoms and tendon xanthoma, and it is thought to be helpful for an early diagnosis.[2] Adults with CTX frequently have cataracts and optic disk paleness as well.[8] Other ocular problems associated with CTX include deposits that resemble cholesterol and retinal vessel sclerosis.[9]

Among the many clinical symptoms of CTX that have been documented are cardiovascular disease and premature atherosclerosis.[10] Despite having normal serum cholesterol levels, patients with CTX experienced significant premature atherosclerosis.[11] Patients with CTX have a heightened risk of developing cardiovascular disease due to their significantly elevated levels of 27-hydroxycholesterol and decreased levels of high-density lipoprotein cholesterol in their blood lipid analysis.[12]

Patients with CTX frequently have osteoporosis and recurrent bone fractures as clinical symptoms. Patients with significant gait abnormalities who have little bone mass are more likely to fall and break their bones accidentally.[2] In CTX patients, serum calcium, phosphate, and vitamin D metabolites are normal, but intestine radiocalcium absorption is reduced and total body bone mineral density is poor.[13]

Chronic and intractable diarrhea is a common symptom of CTX.[14] Gallstones, cholecystic polypus, and newborn cholestatic jaundice are also observed in certain CTX patients.[15][8]

In individuals with cerebrotendinous xanthomatosis, xanthomas frequently develop in the second or third decade of life, while they can occasionally not develop at all. They usually originate on the Achilles tendons, although they have also been discovered in the lungs, bones, and central nervous system, as well as on the extensor tendons of the elbow, hand, patellar tendon, and neck.[8]

Causes

CTX is associated with mutations in the CYP27A1 gene, located on chromosome 2q33-qter.[16] The disorder is inherited in an autosomal recessive manner.[17]

Mechanism

The CYP27A1 gene encodes for the mitochondrial enzyme sterol 27-hydroxylase, which is in charge of bile acid production. Because of this enzyme's mutation, chenodeoxycholic acid and cholic acid are reduced, which increases the synthesis of 7α-hydroxy-4-cholesten-3-one, the precursor to cholestanol. Because of this mutation, cholesterol is transformed into cholestanol and bile alcohol instead of bile acids. An excess of cholestanol then causes tissue accumulation in several organs, resulting in a variety of symptoms involving many organs.[18]

Diagnosis

Molecular genetic analysis, neuroimaging, biochemical testing, and clinical findings are the main methods used in the diagnosis of CTX. When individuals present with neurological symptoms beginning in childhood with xanthomas, a CTX diagnosis should be taken into consideration.[2]

Enhanced plasma cholestanol and elevated bile alcohol levels in urine, along with a decreased biliary concentration of chenodeoxycholic acid, are among the biochemical anomalies observed in CTX patients.[19] Another characteristic of CTX is an increased plasma level of cholestanol.[20]

Treatment

Surgery, replacement therapy, and additional symptomatic treatment are all part of the management of CTX.[2] Bile acids such as taurocholic acid, ursodeoxycholic acid (UDCA), cholic acid, and chenodeoxycholic acid (CDCA) are administered as part of replacement treatment.[21][22] The preferred treatment for both neurological and non-neurological symptoms of CTX is CDCA treatment (750 mg/d), although cholic acid is also effective for non-neurological symptoms. Liver transplantation,[8] low-density lipoprotein apheresis,[23] and vitamin E supplementation are further potential treatments that do not yet have solid clinical backing.[2] Owing to the wide range of symptoms and signs associated with CTX, symptomatic treatment is crucial.[2] This includes antidepressant medicine for depression,[24] antiepileptic therapy for convulsive seizures,[5] levodopa for parkinsonism,[25] and botulinum toxin for dystonia.[26]

History

Cerebrotendinous xanthomatosis was formerly known as "Van Bogaert–Scherer–Epstein syndrome".[27][28]

See also

References

  1. ^ "cerebrotendinous xanthomatosis". Monarch Initiative. Archived from the original on 2024-02-27. Retrieved 2024-06-21.
  2. ^ a b c d e f g h Nie, Shuke; Chen, Guiqin; Cao, Xuebing; Zhang, Yunjian (2014-11-26). "Cerebrotendinous xanthomatosis: a comprehensive review of pathogenesis, clinical manifestations, diagnosis, and management". Orphanet Journal of Rare Diseases. 9 (1). Springer Science and Business Media LLC: 179. doi:10.1186/s13023-014-0179-4. ISSN 1750-1172. PMC 4264335. PMID 25424010.
  3. ^ Keren, Zohar; Falik-Zaccai, Tzipora C. (2009). "Cerebrotendinous xanthomatosis (CTX): a treatable lipid storage disease". Pediatric Endocrinology Reviews: PER. 7 (1): 6–11. ISSN 1565-4753. PMID 19696711.
  4. ^ Pilo-de-la-Fuente, B.; Jimenez-Escrig, A.; Lorenzo, J. R.; Pardo, J.; Arias, M.; Ares-Luque, A.; Duarte, J.; Muñiz-Pérez, S.; Sobrido, M. J. (2011). "Cerebrotendinous xanthomatosis in Spain: clinical, prognostic, and genetic survey". European Journal of Neurology. 18 (10): 1203–1211. doi:10.1111/j.1468-1331.2011.03439.x. ISSN 1468-1331. PMID 21645175.
  5. ^ a b Pedroso, José Luiz; Pinto, Wladimir B.; Souza, Paulo V.; Santos, Lucas T.; Abud, Isabela C.; Avelino, Marcela Amaral; Barsottini, Orlando G. (2012). "Early-onset epilepsy as the main neurological manifestation of cerebrotendinous xanthomatosis". Epilepsy & Behavior. 24 (3). Elsevier BV: 380–381. doi:10.1016/j.yebeh.2012.04.121. ISSN 1525-5050. PMID 22658436.
  6. ^ Ohno, Takae; Kobayashi, Shunsuke; Hayashi, Masataka; Sakurai, Masaki; Kanazawa, Ichiro (2001). "Diphenylpyraline-responsive parkinsonism in cerebrotendinous xanthomatosis: long-term follow up of three patients". Journal of the Neurological Sciences. 182 (2). Elsevier BV: 95–97. doi:10.1016/s0022-510x(00)00441-x. ISSN 0022-510X. PMID 11137513.
  7. ^ Cruysberg, J.R.M.; Wevers, R.A.; Tolboom, J.J.M. (1991). "Juvenile Cataract Associated With Chronic Diarrhea in Pediatric Cerebrotendinous Xanthomatosis". American Journal of Ophthalmology. 112 (5). Elsevier BV: 606–607. doi:10.1016/s0002-9394(14)76874-6. ISSN 0002-9394.
  8. ^ a b c d Federico, Antonio; Dotti, Maria Teresa (2003). "Cerebrotendinous Xanthomatosis". Journal of Child Neurology. 18 (9). SAGE Publications: 633–638. doi:10.1177/08830738030180091001. ISSN 0883-0738. PMID 14572142.
  9. ^ CRUYSBERG, J.R.M.; WEVERS, R.A.; van ENGELEN, B.G.M.; PINCKERS, A.; van SPREEKEN, A.; TOLBOOM, J.J.M. (1995). "Ocular and Systemic Manifestations of Cerebrotendinous Xanthomatosis". American Journal of Ophthalmology. 120 (5). Elsevier BV: 597–604. doi:10.1016/s0002-9394(14)72206-8. hdl:2066/20758. ISSN 0002-9394. PMID 7485361.
  10. ^ Dotti, Maria Teresa; Mondillo, Sergio; Plewnia, Katrin; Agricola, Eustachio; Federico, A. (1998-10-01). "Cerebrotendinous xanthomatosis: evidence of lipomatous hypertrophy of the atrial septum". Journal of Neurology. 245 (11). Springer Science and Business Media LLC: 723–726. doi:10.1007/s004150050274. ISSN 0340-5354. PMID 9808240.
  11. ^ Björkhem, I; Andersson, O; Diczfalusy, U; Sevastik, B; Xiu, R J; Duan, C; Lund, E (1994-08-30). "Atherosclerosis and sterol 27-hydroxylase: evidence for a role of this enzyme in elimination of cholesterol from human macrophages". Proceedings of the National Academy of Sciences. 91 (18): 8592–8596. Bibcode:1994PNAS...91.8592B. doi:10.1073/pnas.91.18.8592. ISSN 0027-8424. PMC 44652. PMID 8078928.
  12. ^ Weingärtner, Oliver; Laufs, Ulrich; Böhm, Michael; Lütjohann, Dieter (2010). "An alternative pathway of reverse cholesterol transport: The oxysterol 27-hydroxycholesterol". Atherosclerosis. 209 (1). Elsevier BV: 39–41. doi:10.1016/j.atherosclerosis.2009.09.015. ISSN 0021-9150. PMID 19801147.
  13. ^ Federico, Antonio; Dotti, Maria Teresa; Loré, Fausto; Nuti, Ranuccio (1993). "Cerebrotendinous xanthomatosis: pathophysiological study on bone metabolism". Journal of the Neurological Sciences. 115 (1). Elsevier BV: 67–70. doi:10.1016/0022-510x(93)90068-a. ISSN 0022-510X. PMID 8468594.
  14. ^ Verrips, Aad; van Engelen, Baziel G. M.; Wevers, Ron A.; van Geel, Björn M.; Cruysberg, Johannes R. M.; van den Heuvel, Lambert P. W. J.; Keyser, Antoine; Gabreëls, Fons J. M. (2000-04-01). "Presence of Diarrhea and Absence of Tendon Xanthomas in Patients With Cerebrotendinous Xanthomatosis". Archives of Neurology. 57 (4). American Medical Association (AMA): 520–524. doi:10.1001/archneur.57.4.520. ISSN 0003-9942. PMID 10768627.
  15. ^ Mignarri, Andrea; Gallus, Gian Nicola; Dotti, Maria Teresa; Federico, Antonio (2014-01-18). "A suspicion index for early diagnosis and treatment of cerebrotendinous xanthomatosis". Journal of Inherited Metabolic Disease. 37 (3). Wiley: 421–429. doi:10.1007/s10545-013-9674-3. ISSN 0141-8955. PMID 24442603.
  16. ^ Online Mendelian Inheritance in Man (OMIM): 606530
  17. ^ Pilo de la Fuente B, Ruiz I, Lopez de Munain A, Jimenez-Escrig A (May 2008). "Cerebrotendinous xanthomatosis: Neuropathological findings". J. Neurol. 255 (6): 839–42. doi:10.1007/s00415-008-0729-6. PMID 18458861. S2CID 31001655.
  18. ^ Carson, Bianca E.; Jesus, Orlando De (2023-08-23). "Cerebrotendinous Xanthomatosis". StatPearls Publishing. PMID 33232000. Archived from the original on 2024-06-22. Retrieved 2024-06-22.
  19. ^ Moghadasian, Mohammed H.; Salen, Gerald; Frohlich, Jiri J.; Scudamore, Charles H. (2002-04-01). "Cerebrotendinous Xanthomatosis". Archives of Neurology. 59 (4). American Medical Association (AMA): 527–529. doi:10.1001/archneur.59.4.527. ISSN 0003-9942. PMID 11939886.
  20. ^ DeBarber, Andrea E.; Luo, Jenny; Giugliani, Roberto; Souza, Carolina F.M.; Chiang, John (Pei-Wen); Merkens, Louise S.; Pappu, Anuradha S.; Steiner, Robert D. (2014). "A useful multi-analyte blood test for cerebrotendinous xanthomatosis". Clinical Biochemistry. 47 (9). Elsevier BV: 860–863. doi:10.1016/j.clinbiochem.2014.04.017. ISSN 0009-9120. PMC 4175980. PMID 24769274.
  21. ^ Pierre, Germaine; Setchell, Kenneth; Blyth, Jacqueline; Preece, Mary Anne; Chakrapani, Anupam; McKiernan, Patrick (2008). "Prospective treatment of cerebrotendinous xanthomatosis with cholic acid therapy". Journal of Inherited Metabolic Disease. 31 (S2). Wiley: 241–245. doi:10.1007/s10545-008-0815-z. ISSN 0141-8955. PMID 19125350.
  22. ^ Koopman, B.J.; Wolthers, B.G.; van der Molen, J.C.; Waterreus, R.J. (1985). "Bile acid therapies applied to patients suffering from cerebrotendinous xanthomatosis". Clinica Chimica Acta. 152 (1–2). Elsevier BV: 115–122. doi:10.1016/0009-8981(85)90182-2. ISSN 0009-8981. PMID 4053393.
  23. ^ Mimura, Yoshihiro; Kuriyama, Masaru; Tokimura, Yoshika; Fujiyama, Jiro; Osame, Mitsuhiro; Takesako, Kenichi; Tanaka, Nobuyuki (1993). "Treatment of cerebrotendinous xanthomatosis with low-density lipoprotein (LDL)-apheresis". Journal of the Neurological Sciences. 114 (2). Elsevier BV: 227–230. doi:10.1016/0022-510x(93)90303-g. ISSN 0022-510X. PMID 8445406.
  24. ^ Chen, Qiaozhen; Liu, Weibo; Jiang, Biao; Yu, Risheng; Li, Xiuzhen; Li, Huichun (2012). "Fluoxetine-responsive depression in a Chinese cerebrotendinous xanthomatosis". General Hospital Psychiatry. 34 (5). Elsevier BV: 578.e1–578.e4. doi:10.1016/j.genhosppsych.2011.10.008. ISSN 0163-8343. PMID 22133984.
  25. ^ Schotsmans, Katlijn; De Cauwer, Harald; Baets, Jonathan; Ceyssens, Sarah; van den Hauwe, Luc; Deconinck, Tine; Helsen, Gregory (2012-04-17). "Cerebrotendinous xanthomatosis presenting with asymmetric parkinsonism: a case with I-123-FP-CIT SPECT imaging". Acta Neurologica Belgica. 112 (3). Springer Science and Business Media LLC: 287–289. doi:10.1007/s13760-012-0064-7. ISSN 0300-9009. PMID 22527785.
  26. ^ Lagarde, Julien; Sedel, Frédéric; Degos, Bertrand (2013). "Blepharospasm as a new feature of cerebrotendinous xanthomatosis". Parkinsonism & Related Disorders. 19 (8). Elsevier BV: 764–765. doi:10.1016/j.parkreldis.2013.04.003. ISSN 1353-8020. PMID 23623195.
  27. ^ synd/1452 at Who Named It?
  28. ^ Van Bogaert, L.; van Bogaert, L.; Scherer, H.J.; Epstein, É. (1937). Une forme cérébrale de la cholestérinose généralisée: (type particulier de lipidose à cholestérine) (in French). Masson. Archived from the original on 2024-06-22. Retrieved 2024-06-22.

Further reading

  • Gallus, G. N.; Dotti, M. T.; Federico, A. (2006). "Clinical and molecular diagnosis of cerebrotendinous xanthomatosis with a review of the mutations in the CYP27A1 gene". Neurological Sciences. 27 (2). Springer Science and Business Media LLC: 143–149. doi:10.1007/s10072-006-0618-7. ISSN 1590-1874. PMID 16816916.
  • Björkhem, Ingemar; Hansson, Magnus (2010). "Cerebrotendinous xanthomatosis: An inborn error in bile acid synthesis with defined mutations but still a challenge". Biochemical and Biophysical Research Communications. 396 (1). Elsevier BV: 46–49. doi:10.1016/j.bbrc.2010.02.140. ISSN 0006-291X. PMID 20494109.

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تعجر الاصابع تعجر الاصابعتعجر الاصابع تسميات أخرى Drumstick fingers, watch-glass nails[1] معلومات عامة الاختصاص طب الرئة الموقع التشريحي إصبع اليد  تعديل مصدري - تعديل   تعجر الأصابع (بالإنجليزية: Nail clubbing)‏ هو زيادة في سماكة الجلد تحت أظافر اليدين أو القدمين، وغالبًا ما يكون مصاحب...