Results 21 to 30 of about 491,817 (253)

Inhibition of mitochondrial respiration by phosphoenolpyruvate [PDF]

open access: yesArchives of Biochemistry and Biophysics, 2011
The cytosolic factors that influence mitochondrial oxidative phosphorylation rates are relatively unknown. In this report, we examine the effects of phosphoenolpyruvate (PEP), a glycolytic intermediate, on mitochondrial function. It is reported here that in rat heart mitochondria, PEP delays the onset of state 3 respiration in mitochondria supplied ...
Nathan Baily, C   +4 more
openaire   +2 more sources

Nrf2 impacts cellular bioenergetics by controlling substrate availability for mitochondrial respiration [PDF]

open access: yes, 2013
Transcription factor Nrf2 and its repressor Keap1 regulate a network of cytoprotective genes involving more than 1% of the genome, their best known targets being drug-metabolizing and antioxidant genes.
Iain Hargreaves   +29 more
core   +1 more source

Metformin Improves Mitochondrial Respiratory Activity through Activation of AMPK

open access: yesCell Reports, 2019
Summary: Impaired mitochondrial respiratory activity contributes to the development of insulin resistance in type 2 diabetes. Metformin, a first-line antidiabetic drug, functions mainly by improving patients’ hyperglycemia and insulin resistance. However,
Yu Wang   +11 more
doaj   +1 more source

Modulation of Human Sperm Mitochondrial Respiration Efficiency by Plant Polyphenols

open access: yesAntioxidants, 2021
Plant bioactives, such as polyphenols, can differentially affect (positively or negatively) sperm quality, depending on their concentration. These molecules have been proposed as natural scavengers of reactive oxygen species (ROS) for male infertility ...
Alessandra Ferramosca   +8 more
doaj   +1 more source

Suppression of mitochondrial respiration through recruitment of p160 myb binding protein to PGC-1α : modulation by p38 MAPK [PDF]

open access: yes, 2004
The transcriptional coactivator PPAR gamma coactivator 1 α (PGC-1α) is a key regulator of metabolic processes such as mitochondrial biogenesis and respiration in muscle and gluconeogenesis in liver. Reduced levels of PGC-1α in humans have been associated
Lin, J.   +9 more
core   +1 more source

The emerging role of Nrf2 in mitochondrial function [PDF]

open access: yes, 2015
The transcription factor NF-E2 p45-related factor 2 (Nrf2, gene name NFE2L2) allows adaptation and survival under conditions of stress by regulating the gene expression of diverse networks of cytoprotective proteins, including antioxidant, anti ...
Dinkova-Kostova, AT   +4 more
core   +1 more source

Mitochondrial respiration and Ca2+ waves are linked during fertilization and meiosis completion [PDF]

open access: yes, 2003
Fertilization increases both cytosolic Ca(2+) concentration and oxygen consumption in the egg but the relationship between these two phenomena remains largely obscure.
Smith, Peter J.   +9 more
core   +1 more source

Mechanism of neurodegeneration of neurons with mitochondrial DNA mutations [PDF]

open access: yes, 2010
Mutations of mitochondrial DNA are associated with a wide spectrum of disorders, primarily affecting the central nervous system and muscle function. The specific consequences of mitochondrial DNA mutations for neuronal pathophysiology are not understood.
Turnbull, Douglass M.   +16 more
core   +1 more source

Mitochondrial-Respiration-Improving Effects of Three Different Gardeniae Fructus Preparations and Their Components

open access: yes, 2021
The processing method for Chinese traditional herbal medicine is “Pao Zhi” in Chinese. This study examined the efficacy of the Pao Zhi on the preparations of Gardeniae Fructus (GF) on a mitochondrial respiratory function in rats.
Xiaoqing Li (186909)   +17 more
core   +1 more source

The mitochondrial elongation factor LeEF-Tsmt is regulated during tomato fruit ripening and upon wounding and ethylene treatment [PDF]

open access: yes, 2006
A gene encoding an elongation factor LeEF-Tsmt that participates in the protein synthesis process in mitochondria shows strong expression in ripening fruit as compared to other organs.
Latché, Alain   +8 more
core   +1 more source

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