Results 1 to 10 of about 1,199,861 (319)

In vivo mitochondrial base editing via adeno-associated viral delivery to mouse post-mitotic tissue

open access: yesNature Communications, 2022
Mutations in mitochondrial DNA can lead to clinically heterogeneous disease. Here the authors demonstrate in vivo base editing of mouse mitochondrial DNA in a post-mitotic tissue by AAV delivery of DddA-derived cytosine base editor (DdCBE).
Pedro Silva-Pinheiro   +5 more
doaj   +1 more source

Structural basis for a complex I mutation that blocks pathological ROS production

open access: yesNature Communications, 2021
Reactive oxygen species (ROS) production by reverse electron transfer (RET) through complex I is thought to cause tissue damage from heart attacks. Here, the authors combine in vivo work with biochemical and cryo-EM analyses to characterize the effects ...
Zhan Yin   +12 more
doaj   +1 more source

Imaging mass cytometry reveals generalised deficiency in OXPHOS complexes in Parkinson’s disease

open access: yesnpj Parkinson's Disease, 2021
Here we report the application of a mass spectrometry-based technology, imaging mass cytometry, to perform in-depth proteomic profiling of mitochondrial complexes in single neurons, using metal-conjugated antibodies to label post-mortem human midbrain ...
Chun Chen   +12 more
doaj   +1 more source

Bioenergetic bypass using cell-permeable succinate, but not methylene blue, attenuates metformin-induced lactate production

open access: yesIntensive Care Medicine Experimental, 2018
Background Metformin is the most common pharmacological treatment for type 2 diabetes. It is considered safe but has been associated with the development of lactic acidosis under circumstances where plasma concentrations exceed therapeutic levels ...
Sarah Piel   +6 more
doaj   +1 more source

Mitochondrial impairment and synaptic dysfunction are associated with neurological defects in iPSCs-derived cortical neurons of MERRF patients

open access: yesJournal of Biomedical Science, 2023
Background Myoclonic epilepsy with ragged-red fibers (MERRF) syndrome is a rare inherited mitochondrial disease mainly caused by the m.8344A > G mutation in mitochondrial tRNALys gene, and usually manifested as complex neurological disorders and muscle ...
Yu-Ting Wu   +5 more
doaj   +1 more source

Navigating Life With Primary Mitochondrial Myopathies: The Importance of the Patient Voice and Implications for Clinical Practice

open access: yesJournal of Primary Care & Community Health, 2023
Primary mitochondrial myopathies (PMM) are rare disorders with diverse and progressive symptom presentations that cause a substantial, detrimental impact on the quality of life of patients and their caregivers.
Margaret Moore   +2 more
doaj   +1 more source

Complex I reductions in the nucleus basalis of Meynert in Lewy body dementia: the role of Lewy bodies

open access: yesActa Neuropathologica Communications, 2020
Neurons of the nucleus basalis of Meynert (nbM) are vulnerable to Lewy body formation and neuronal loss, which is thought to underlie cognitive dysfunction in Lewy body dementia (LBD).
Christopher Hatton   +9 more
doaj   +1 more source

Astrocytic pathology in Alpers’ syndrome

open access: yesActa Neuropathologica Communications, 2023
Refractory epilepsy is the main neurological manifestation of Alpers’ syndrome, a severe childhood-onset mitochondrial disease caused by bi-allelic pathogenic variants in the mitochondrial DNA (mtDNA) polymerase gamma gene (POLG).
Laura A Smith   +5 more
doaj   +1 more source

Aggregation of alpha-synuclein disrupts mitochondrial metabolism and induce mitophagy via cardiolipin externalization

open access: yesCell Death and Disease, 2023
Accumulation of α-synuclein aggregates in the substantia nigra pars compacta is central in the pathophysiology of Parkinson’s disease, leading to the degeneration of dopaminergic neurons and the manifestation of motor symptoms. Although several PD models
Olivier Lurette   +10 more
doaj   +1 more source

Paracoccus denitrificans: a genetically tractable model system for studying respiratory complex I

open access: yesScientific Reports, 2021
Mitochondrial complex I (NADH:ubiquinone oxidoreductase) is a crucial metabolic enzyme that couples the free energy released from NADH oxidation and ubiquinone reduction to the translocation of four protons across the inner mitochondrial membrane ...
Owen D. Jarman   +3 more
doaj   +1 more source

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