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Kelsey H Fisher-Wellman et al.
Cell reports, 26(6), 1557-1572 (2019-02-07)
Acyl CoA metabolites derived from the catabolism of carbon fuels can react with lysine residues of mitochondrial proteins, giving rise to a large family of post-translational modifications (PTMs). Mass spectrometry-based detection of thousands of acyl-PTMs scattered throughout the proteome has
Cynthia M F Monaco et al.
Diabetologia, 61(6), 1411-1423 (2018-04-19)
A comprehensive assessment of skeletal muscle ultrastructure and mitochondrial bioenergetics has not been undertaken in individuals with type 1 diabetes. This study aimed to systematically assess skeletal muscle mitochondrial phenotype in young adults with type 1 diabetes. Physically active, young
G Hoffmann et al.
Clinical chemistry, 35(4), 587-595 (1989-04-01)
This new method for qualitative and quantitative determination of organic acids, aldehydes, and ketones in biological samples is effective for use with urine, plasma, and amniotic fluid, and it requires no deproteinization. Isolation by batch-wise liquid partition chromatography on silicic
Matthew Wortham et al.
Cell reports, 25(10), 2904-2918 (2018-12-06)
Pancreatic β cell physiology changes substantially throughout life, yet the mechanisms that drive these changes are poorly understood. Here, we performed comprehensive in vivo quantitative proteomic profiling of pancreatic islets from juvenile and 1-year-old mice. The analysis revealed striking differences in abundance
Ashley S Williams et al.
Cell metabolism, 31(1), 131-147 (2019-12-10)
This study sought to examine the functional significance of mitochondrial protein acetylation using a double knockout (DKO) mouse model harboring muscle-specific deficits in acetyl-CoA buffering and lysine deacetylation, due to genetic ablation of carnitine acetyltransferase and Sirtuin 3, respectively. DKO
Alexandros K Kanellopoulos et al.
Cell, 180(6), 1178-1197 (2020-03-24)
Social impairment is frequently associated with mitochondrial dysfunction and altered neurotransmission. Although mitochondrial function is crucial for brain homeostasis, it remains unknown whether mitochondrial disruption contributes to social behavioral deficits. Here, we show that Drosophila mutants in the homolog of
Juliane C Campos et al.
Autophagy, 13(8), 1304-1317 (2017-06-10)
We previously reported that facilitating the clearance of damaged mitochondria through macroautophagy/autophagy protects against acute myocardial infarction. Here we characterize the impact of exercise, a safe strategy against cardiovascular disease, on cardiac autophagy and its contribution to mitochondrial quality control
Kelsey H Fisher-Wellman et al.
Cell reports, 24(13), 3593-3606 (2018-09-27)
Chronic metabolic diseases have been linked to molecular signatures of mitochondrial dysfunction. Nonetheless, molecular remodeling of the transcriptome, proteome, and/or metabolome does not necessarily translate to functional consequences that confer physiologic phenotypes. The work here aims to bridge the gap
Elena Grossini et al.
PloS one, 10(4), e0124742-e0124742 (2015-04-17)
Levosimendan protects rat liver against peroxidative injuries through mechanisms related to nitric oxide (NO) production and mitochondrial ATP-dependent K (mitoKATP) channels opening. However, whether levosimendan could modulate the cross-talk between apoptosis and autophagy in the liver is still a matter
Laura Knuppertz et al.
Autophagy, 13(6), 1037-1052 (2017-04-04)
Mitochondrial dysfunction is causatively linked to organismal aging and the development of degenerative diseases. Here we describe stress-dependent opposing roles of mitophagy, the selective autophagic degradation of mitochondria, in aging and life-span control. We report that the ablation of the
A ketogenic diet combined with exercise alters mitochondrial function in human skeletal muscle while improving metabolic health.
Miller, et al.
American Journal of Physiology. Endocrinology and Metabolism, 319, E995-E1007 (2020)
F Guneral et al.
Clinical chemistry, 40(6), 862-866 (1994-06-01)
Organic acid concentrations were quantified by gas chromatography and the individual acids identified by mass spectrometry in urine specimens from a healthy Turkish pediatric population of ages 2 days to 16 years, subdivided into five age groups. We quantified 69
C Zupke et al.
Applied microbiology and biotechnology, 44(1-2), 27-36 (1995-12-01)
Quantitative estimates of intracellular fluxes and measurements of intracellular concentrations were used to evaluate the effect of dissolved oxygen (DO) concentration on CRL 1606 hybridoma cells in batch culture. The estimates of intracellular fluxes were generated by combining material balances
Denise Sighel et al.
Cell reports, 35(4), 109024-109024 (2021-04-29)
Glioblastoma stem cells (GSCs) resist current glioblastoma (GBM) therapies. GSCs rely highly on oxidative phosphorylation (OXPHOS), whose function requires mitochondrial translation. Here we explore the therapeutic potential of targeting mitochondrial translation and report the results of high-content screening with putative
Marten Szibor et al.
The Journal of biological chemistry, 295(14), 4383-4397 (2020-02-26)
Mitochondrial oxidative phosphorylation (OXPHOS) and cellular workload are tightly balanced by the key cellular regulator, calcium (Ca2+). Current models assume that cytosolic Ca2+ regulates workload and that mitochondrial Ca2+ uptake precedes activation of matrix dehydrogenases, thereby matching OXPHOS substrate supply
Mc Murry JE
Organic Chemistry , Biological Approach (2016)
J D Shoemaker et al.
Journal of chromatography, 562(1-2), 125-138 (1991-01-02)
Eighty-five clinical urine samples and nineteen urine samples previously found by other laboratories to suggest genetic metabolic defects were prepared for trimethylsilylation by treatment with urease, followed by azeotropic dehydration. The "Target Analyte Search" program provided with the VG Trio
Wen C Aw et al.
Journal of biological methods, 3(2), e42-e42 (2016-06-08)
Mitochondria are involved in generating more than 90 percent of cellular energy and are responsible for many cellular processes such as metabolism, cell signalling, apoptosis and ageing. Currently, there are a number of different experimental approaches employed to measure mitochondrial
D F Splittstoesser et al.
Journal of food protection, 59(3), 226-229 (1996-03-01)
The objective was to determine the effect of cider composition on the heat resistance of Escherichia coli O157:H7. The average D52 value in a model Empire apple juice was 18 min with a z value of 4.8 degrees C. Increasing
Eligio F Iannetti et al.
Cell death & disease, 9(11), 1135-1135 (2018-11-16)
Cell models of mitochondrial complex I (CI) deficiency display activation of glycolysis to compensate for the loss in mitochondrial ATP production. This adaptation can mask other relevant deficiency-induced aberrations in cell physiology. Here we investigated the viability, mitochondrial morphofunction, ROS
Giulia Allavena et al.
Autophagy, 14(2), 252-268 (2017-11-23)
Macroautophagy/autophagy inhibition under stress conditions is often associated with increased cell death. We found that under nutrient limitation, activation of CASP8/caspase-8 was significantly increased in autophagy-deficient lung cancer cells, which precedes mitochondria outer membrane permeabilization (MOMP), CYCS/cytochrome c release, and
Verena Warnsmann et al.
Frontiers in genetics, 9, 160-160 (2018-05-22)
Quercetin is a flavonoid that is ubiquitously found in vegetables and fruits. Like other flavonoids, it is active in balancing cellular reactive oxygen species (ROS) levels and has a cyto-protective function. Previously, a link between ROS balancing, aging, and the
Marten Szibor et al.
Journal of cellular and molecular medicine, 24(6), 3534-3548 (2020-02-11)
Cardiac ischaemia-reperfusion (I/R) injury has been attributed to stress signals arising from an impaired mitochondrial electron transport chain (ETC), which include redox imbalance, metabolic stalling and excessive production of reactive oxygen species (ROS). The alternative oxidase (AOX) is a respiratory
Yen-Chi Tsao et al.
International journal of molecular sciences, 21(12) (2020-06-25)
Isoplumbagin (5-hydroxy-3-methyl-1,4-naphthoquinone), a naturally occurring quinone from Lawsonia inermis and Plumbago europaea, has been reported to have anti-inflammatory and antimicrobial activity. Inflammation has long been implicated in cancer progression. In this study, we examined the anticancer effect of chemically synthesized
Venkata Ramana Vaka et al.
American journal of physiology. Regulatory, integrative and comparative physiology, 316(5), R441-R447 (2019-02-28)
Preeclampsia (PE) is characterized by new-onset hypertension during pregnancy and is associated with immune activation and placental oxidative stress. Mitochondrial dysfunction is a major source of oxidative stress and may play a role in the pathology of PE. We (Vaka
Sukru Anil Dogan et al.
Cell metabolism, 28(5), 764-775 (2018-08-21)
Alternative oxidases (AOXs) bypass respiratory complexes III and IV by transferring electrons from coenzyme Q directly to O2. They have therefore been proposed as a potential therapeutic tool for mitochondrial diseases. We crossed the severely myopathic skeletal muscle-specific COX15 knockout
Javier Mora-Macías et al.
Proceedings of the National Academy of Sciences of the United States of America, 114(17), E3563-E3572 (2017-04-13)
Low phosphate (Pi) availability constrains plant development and seed production in both natural and agricultural ecosystems. When Pi is scarce, modifications of root system architecture (RSA) enhance the soil exploration ability of the plant and lead to an increase in
Rodrigo W Alves de Souza et al.
Cell reports, 35(3), 109018-109018 (2021-04-22)
Physical exercise has profound effects on quality of life and susceptibility to chronic disease; however, the regulation of skeletal muscle function at the molecular level after exercise remains unclear. We tested the hypothesis that the benefits of exercise on muscle
Gauri Bhosale et al.
Current protocols in pharmacology, 85(1), e59-e59 (2019-05-14)
Mitochondria act as 'sinks' for Ca2+ signaling, with mitochondrial Ca2+ uptake linking physiological stimuli to increased ATP production. However, mitochondrial Ca2+ overload can induce a cellular catastrophe by opening of the mitochondrial permeability transition pore (mPTP). This pore is a
T J Fang et al.
Zhonghua Minguo wei sheng wu ji mian yi xue za zhi = Chinese journal of microbiology and immunology, 26(3), 116-131 (1993-08-01)
This study was conducted to investigate the relationship between pH and the toxicity of sulfur dioxide against homo- and hetero-lactic acid bacteria isolated from American acidic wines. Malolactic fermentation was found to be growth-associated in homo- and hetero-lactic strains. The
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