Alteration of Nucleotide Metabolism: A New Mechanism for Mitochondrial Disorders

Verfasser / Beitragende:
[Ramon Martí, Yutaka Nishigaki, Maya R. Vilá, Michio Hirano]
Ort, Verlag, Jahr:
2003
Enthalten in:
Clinical Chemistry and Laboratory Medicine, 41/7(2003-07-21), 845-851
Format:
Artikel (online)
ID: 378879359
LEADER caa a22 4500
001 378879359
003 CHVBK
005 20180305123428.0
007 cr unu---uuuuu
008 161128e20030721xx s 000 0 eng
024 7 0 |a 10.1515/CCLM.2003.128  |2 doi 
035 |a (NATIONALLICENCE)gruyter-10.1515/CCLM.2003.128 
245 0 0 |a Alteration of Nucleotide Metabolism: A New Mechanism for Mitochondrial Disorders  |h [Elektronische Daten]  |c [Ramon Martí, Yutaka Nishigaki, Maya R. Vilá, Michio Hirano] 
520 3 |a Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is an autosomal recessive disease caused by loss-of-function mutations in the gene encoding thymidine phosphorylase (TP). TP deficiency alters the metabolism of the nucleosides thymidine and deoxyuridine, which, in turn, produces abnormalities of mitochondrial DNA (mtDNA) including depletion, deletions, and point mutations. MNGIE is the best characterized of the expanding number of mitochondrial disorders caused by alterations in the metabolism of nucleosides/nucleotides. Because mitochondria contain their own machinery for nucleoside and nucleotide metabolism and have physically separate nucleotide pools, it is not surprising that disorders of these pathways cause human diseases. Other diseases in this group include mtDNA depletion syndromes caused by mutations on the nuclear genes encoding the mitochondrial thymidine kinase and deoxyguanosine kinase; autosomal dominant progressive external ophthalmoplegia with multiple deletions of mtDNA due to mutations in the genes encoding the muscle-isoform of mitochondrial ADP/ATP translocator; and mitochondrial DNA depletion due to toxicities of nucleoside analogues. Mutations in the deoxynucleotide carrier, a transporter of deoxynucleoside diphosphates, have been identified as a cause of congenital microcephaly. However, alterations of mtDNA have not yet been established in this disorder. Future studies are likely to reveal additional diseases and provide further insight into this new subject. 
540 |a Copyright © 2003 by Walter de Gruyter GmbH & Co. KG 
690 7 |a Medical equipment & techniques  |2 nationallicence 
690 7 |a Medical diagnosis  |2 nationallicence 
690 7 |a Diseases & disorders  |2 nationallicence 
700 1 |a Martí  |D Ramon  |4 aut 
700 1 |a Nishigaki  |D Yutaka  |4 aut 
700 1 |a Vilá  |D Maya R.  |4 aut 
700 1 |a Hirano  |D Michio  |4 aut 
773 0 |t Clinical Chemistry and Laboratory Medicine  |d Walter de Gruyter  |g 41/7(2003-07-21), 845-851  |x 1434-6621  |q 41:7<845  |1 2003  |2 41  |o cclm 
856 4 0 |u https://doi.org/10.1515/CCLM.2003.128  |q text/html  |z Onlinezugriff via DOI 
908 |D 1  |a research article  |2 jats 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1515/CCLM.2003.128  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Martí  |D Ramon  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Nishigaki  |D Yutaka  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Vilá  |D Maya R.  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Hirano  |D Michio  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Clinical Chemistry and Laboratory Medicine  |d Walter de Gruyter  |g 41/7(2003-07-21), 845-851  |x 1434-6621  |q 41:7<845  |1 2003  |2 41  |o cclm 
900 7 |b CC0  |u http://creativecommons.org/publicdomain/zero/1.0  |2 nationallicence 
898 |a BK010053  |b XK010053  |c XK010000 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-gruyter