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MS

Enzyme or protein defect

Mitochondrial tRNA-Leu(UUR) mutation (commonly m.3243A>G); impairs synthesis of mtDNA-encoded respiratory subunits, Complex I most severely

Accumulates or becomes deficient

Lactate

Key features

Mitochondrial encephalomyopathy, lactic acidosis, stroke-like episodes; ragged red fibres

Management

Supportive; arginine in acute episodes

Not clinical guidance. Written from standard clinical biochemistry, not from the uploaded documents, and marked unreviewed. Teaching-level reference for study and database seeding only. It must not be used to manage a patient.

Recent literature

Europe PMC · fetched just now · sorted by publication date

  1. 1
  2. 2
    Mitochondrial targeting strategies for mitigating oxidative damage and enhancing neuroprotection in ischemic stroke: A Review.

    Trujillo-Rangel WÁ, Escutia-Gutiérrez R, García-Benavides L, Zamudio-Ojeda A, Delgado-Lara DLC, García-Mercad… · 2026-07-25

    open access unreviewed
  3. 3
  4. 4
    Disease-mutations perturb proton transfer reactions in respiratory complex I.

    Saura P, Badolato S, Gangdal A, Beghiah A, Kaila VRI. · 2026-08-17

    unreviewed
  5. 5
  6. 6
    Data-driven burst shape analysis for functional phenotyping of neuronal cultures.

    Schäfer TJ, Giannakakis E, Schmidt-Barbo P, Levina A, Vinogradov O. · 2026-09-21

    open access unreviewed
  7. 7
  8. 8
    Assessing the Use of Oxford Nanopore Technologies Sequencing for Detection of Stable Wolbachia Bacterial Strain in Symbiosis in Wild Anopheles Mosquitoes From the WHO African Region.

    Chatterley L, Hull N, Hughes I, Sougoufara S, Meek O, Ceyran M, Dhokiya V, Bandibabone J, Adala C, Cunningham… · 2026-10-01

    open access unreviewed
  9. 9
    A case of severe enteritis following CapeOX therapy in a postoperative rectal cancer patient with m.3243A>G-associated mitochondrial disease.

    Kawakubo H, Ryu S, Imaizumi Y, Suzuki D, Nakashima S, Goto K, Kamada T, Okamoto A, Kobayashi Y, Takano Y, Tak… · 2026-08-25

    unreviewed
  10. 10
    Type B Lactic Acidosis: Diagnosis, Etiology and Treatment - An Educational Review.

    Cardenas Fimbres JA, Cardenas Fimbres JM, Stewart C, Tobias JD. · 2026-08-31

    open access unreviewed

External claims. These come from an index outside this database and are not checked against it. Treat them as leads.