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Mitochondrial Neurogastrointestinal Encephalomyopathy (MNGIE-MTDPS1).


ABSTRACT: Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE-MTDPS1) is a devastating autosomal recessive disorder due to mutations in TYMP, which cause a loss of function of thymidine phosphorylase (TP), nucleoside accumulation in plasma and tissues, and mitochondrial dysfunction. The clinical picture includes progressive gastrointestinal dysmotility, cachexia, ptosis and ophthalmoparesis, peripheral neuropathy, and diffuse leukoencephalopathy, which usually lead to death in early adulthood. Other two MNGIE-type phenotypes have been described so far, which are linked to mutations in POLG and RRM2B genes. Therapeutic options are currently available in clinical practice (allogeneic hematopoietic stem cell transplantation and carrier erythrocyte entrapped thymidine phosphorylase therapy) and newer, promising therapies are expected in the near future. Since successful treatment is strictly related to early diagnosis, it is essential that clinicians be warned about the clinical features and diagnostic procedures useful to suspect diagnosis of MNGIE-MTDPS1. The aim of this review is to promote the knowledge of the disease as well as the involved mechanisms and the diagnostic processes in order to reach an early diagnosis.

SUBMITTER: Filosto M 

PROVIDER: S-EPMC6262582 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Mitochondrial Neurogastrointestinal Encephalomyopathy (MNGIE-MTDPS1).

Filosto Massimiliano M   Cotti Piccinelli Stefano S   Caria Filomena F   Gallo Cassarino Serena S   Baldelli Enrico E   Galvagni Anna A   Volonghi Irene I   Scarpelli Mauro M   Padovani Alessandro A  

Journal of clinical medicine 20181026 11


Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE-MTDPS1) is a devastating autosomal recessive disorder due to mutations in <i>TYMP</i>, which cause a loss of function of thymidine phosphorylase (TP), nucleoside accumulation in plasma and tissues, and mitochondrial dysfunction. The clinical picture includes progressive gastrointestinal dysmotility, cachexia, ptosis and ophthalmoparesis, peripheral neuropathy, and diffuse leukoencephalopathy, which usually lead to death in early adulth  ...[more]

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