PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34043997-4 2021 Further comparisons between SMM from both Nnt mouse genotypes revealed that the NADPH supplied by NNT supports up to 600 pmol/mg/min of H2O2 removal under selected conditions. Hydrogen Peroxide 136-140 nicotinamide nucleotide transhydrogenase Mus musculus 98-101 34043997-0 2021 NADPH supply and the contribution of NAD(P)+ transhydrogenase (NNT) to H2O2 balance in skeletal muscle mitochondria. Hydrogen Peroxide 71-75 nicotinamide nucleotide transhydrogenase Mus musculus 63-66 34043997-5 2021 Surprisingly, SMM from Nnt-/- mice removed exogenous H2O2 at wild-type levels and exhibited a maintained or even decreased net emission of endogenous H2O2 when substrates that support Krebs cycle reactions were present (e.g., pyruvate plus malate or palmitoylcarnitine plus malate). Hydrogen Peroxide 53-57 nicotinamide nucleotide transhydrogenase Mus musculus 23-26 34043997-5 2021 Surprisingly, SMM from Nnt-/- mice removed exogenous H2O2 at wild-type levels and exhibited a maintained or even decreased net emission of endogenous H2O2 when substrates that support Krebs cycle reactions were present (e.g., pyruvate plus malate or palmitoylcarnitine plus malate). Hydrogen Peroxide 150-154 nicotinamide nucleotide transhydrogenase Mus musculus 23-26 34043997-7 2021 Importantly, respiratory rates were similar between SMM from both Nnt genotypes despite differing NNT contributions to H2O2 removal and their implications for an evolving concept in the literature are discussed. Hydrogen Peroxide 119-123 nicotinamide nucleotide transhydrogenase Mus musculus 98-101 34043997-8 2021 We concluded that NNT is capable of meaningfully sustaining NADPH-dependent H2O2 removal in intact SMM. Hydrogen Peroxide 76-80 nicotinamide nucleotide transhydrogenase Mus musculus 18-21 34043997-9 2021 Nonetheless, if the available substrates favor non-NNT sources of NADPH, the H2O2 removal by SMM is maintained in Nnt-/- mice SMM. Hydrogen Peroxide 77-81 nicotinamide nucleotide transhydrogenase Mus musculus 114-117 30281804-5 2018 In the absence of NNT, an increased release of H2 O2 from mitochondria was observed when the metabolism of respiratory substrates occurred with restricted flux through relevant mitochondrial NADPH sources or when respiratory complex I was inhibited. Hydrogen Peroxide 47-52 nicotinamide nucleotide transhydrogenase Mus musculus 18-21 31639438-1 2020 Here, we demonstrate that the upregulation of catalase is required to compensate for the loss of nicotinamide nucleotide transhydrogenase (NNT) to maintain hydrogen peroxide (H2O2) steady-state levels in C57BL/6J liver mitochondria. Hydrogen Peroxide 156-173 nicotinamide nucleotide transhydrogenase Mus musculus 97-137 31639438-1 2020 Here, we demonstrate that the upregulation of catalase is required to compensate for the loss of nicotinamide nucleotide transhydrogenase (NNT) to maintain hydrogen peroxide (H2O2) steady-state levels in C57BL/6J liver mitochondria. Hydrogen Peroxide 156-173 nicotinamide nucleotide transhydrogenase Mus musculus 139-142 30281804-6 2018 In accordance, mitochondria from Nnt-/- brains were unable to sustain NADP in its reduced state when energized in the absence of carbon substrates, an effect aggravated after H2 O2 bolus metabolism. Hydrogen Peroxide 175-180 nicotinamide nucleotide transhydrogenase Mus musculus 33-36 28964917-5 2017 Under a HFD, the aggravated NAFLD phenotype in the Nnt-/- mice was accompanied by an increased H2O2 release rate from mitochondria, decreased aconitase activity (a redox-sensitive mitochondrial enzyme) and higher susceptibility to Ca2+-induced mitochondrial permeability transition. Hydrogen Peroxide 95-99 nicotinamide nucleotide transhydrogenase Mus musculus 51-54 28580284-12 2017 Accordingly, the lack of NNT in J-islets decreased their sensitivity to exogenous H2O2 at non-stimulating glucose. Hydrogen Peroxide 82-86 nicotinamide nucleotide transhydrogenase Mus musculus 25-28 23747984-7 2013 The functional evaluation of respiring mitochondria revealed major redox alterations in B6J-Nnt(MUT) mice, including an absence of transhydrogenation between NAD and NADP, higher rates of H2O2 release, the spontaneous oxidation of NADPH, the poor ability to metabolize organic peroxide, and a higher susceptibility to undergo Ca(2+)-induced mitochondrial permeability transition. Hydrogen Peroxide 188-192 nicotinamide nucleotide transhydrogenase Mus musculus 92-95