Ontology type: schema:ScholarlyArticle Open Access: True
2017-12
AUTHORSBenjamin Röeben, Justus Marquetand, Benjamin Bender, Heiko Billing, Tobias B. Haack, Iciar Sanchez-Albisua, Ludger Schöls, Henk J. Blom, Matthis Synofzik
ABSTRACTMitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is a rare, autosomal-recessive mitochondrial disorder caused by TYMP mutations presenting with a multisystemic, often lethal syndrome of progressive leukoencephalopathy, ophthalmoparesis, demyelinating neuropathy, cachexia and gastrointestinal dysmotility. Hemodialysis (HMD) has been suggested as a treatment to reduce accumulation of thymidine and deoxyuridine. However, all studies so far have failed to measure the toxic metabolites in cerebrospinal fluid (CSF), which is the crucial compartment for CNS damage.Our study is the first prospective, longitudinal investigation, exploiting detailed serial testing of predefined clinical and molecular outcome parameters (including serial CSF assessments) in a 29-year-old MNGIE patient undergoing 1 year of extensive HMD. We demonstrate that HMD only transiently restores increased serum and urine levels of thymidine and deoxyuridine, but fails to reduce CSF levels of the toxic metabolites and is ineffective to influence neurological function. These findings have direct important implications for clinical practice: They prevent a burdensome, long-term invasive, but ultimately probably ineffective procedure in future MNGIE patients. More... »
PAGES135
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DOIhttp://dx.doi.org/10.1186/s13023-017-0687-0
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