Results 291 to 300 of about 312,550 (342)

Cellular Respiration and Dedifferentiation

2008
Mitochondria are far more than the “powerhouse” of the cell as they have classically been described. They are also the location where various catabolic and anabolic processes, calcium fluxes, reactive oxygen and nitrogen species, and numerous signal transduction pathways interact to maintain cell homeostasis and to modulate cellular responses to ...
Scatena, Roberto, Bottoni, Patrizia, Giardina, Bruno   +2 more
openaire   +2 more sources

Cellular Control of Mitochondrial Respiration

1976
Oxygen delivery to tissues is essential for maintaining the oxygen tension at a level adequate to sustain the cellular energy supply via oxidative phosphorylation. The question is then how the cell regulates oxidative phosphorylation and, through this, the rate of oxygen consumption.
D F, Wilson, M, Erecińska, M, Stubbs, J G, Lindsay, C S, Owen   +4 more
openaire   +2 more sources

Zoledronic acid and bone cellular respiration

Journal of Bone and Mineral Metabolism, 2017
Phosphorescence O2 analyzer was used to measure calvarial bone cellular respiration (cellular mitochondrial O2 consumption) in Taylor Outbred mice in the presence and absence of zoledronic acid. This potent bisphosphonate inhibits osteoclast-mediated calcium resorption, and its effects on bone respiration have not been previously investigated.
Mohammed T, Alsamri, Suleiman, Al-Hammadi, Barira, Islam, Abdul-Kader, Souid   +3 more
openaire   +2 more sources

Cardiac Energy Metabolism: Models of Cellular Respiration

Annual Review of Biomedical Engineering, 2001
▪ Abstract  The heart requires a large amount of energy to sustain both ionic homeostasis and contraction. Under normal conditions, adenosine triphosphate (ATP) production meets this demand. Hence, there is a complex regulatory system that adjusts energy production to meet this demand.
M S, Jafri, S J, Dudycha, B, O'Rourke
openaire   +2 more sources

Oxygen conformance of cellular respiration in hepatocytes

American Journal of Physiology-Lung Cellular and Molecular Physiology, 1993
Cellular respiratory rates are normally determined by metabolic activity, but become rate limited by O2 availability if the cell O2 tension (PO2) falls below a critical value (typically 1–10 Torr). An ability to reduce metabolic activity and energy demand in response to a falling O2 availability might confer an increased resistance to a diminished O2 ...
P T, Schumacker, N, Chandel, A G, Agusti
openaire   +2 more sources

Otto Warburg and Cellular Respiration

Journal of The Association of Physicians of India
Otto Heinrich Warburg (1883-1970) was born in Freiburg, Baden. He studied chemistry under Emil Fischer and obtained his PhD in chemistry for his work on polypeptides in 1906. He then obtained his medical degree at Heidelberg in 1911. Warburg served as an officer in the cavalry during World War I (WW I).
openaire   +2 more sources

Cellular Respiration in Onion Root Tips

Botanical Gazette, 1959
1. The apical portion of onion roots was sectioned into segments 1 mm. long. Cell counts were made on these segments, and cell size was estimated. Oxygen consumption, fresh weight, dry weight, B vitamin concentration (thiamin, riboflavin, niacin), and total nitrogen content were also determined. 2. The 1-2-mm.
W. E. Norris,, E. J. Harber, J. E. Butler   +2 more
openaire   +1 more source

Cellular Respiration and Tumor Suppressor Genes

2008
More than 70 years have passed since Dr. Otto Warburg first documented that cancer cells relied primarily on aerobic glycolysis. However, it was not until the late-1980s and 1990s when cellular respiration, cellular oxygen sensors, and hypoxia were convincingly related to tumorigenesis and tumor progression.
Luis F. Gonzalez-Cuyar, Fabio Tavora, Iusta Caminha, George Perry, Mark A. Smith, Rudy J. Castellani   +5 more
openaire   +1 more source

Cellular Respiration Group Activity

The Cellular Respiration activity will help students’ understanding in: 1) various biochemical steps involved in cellular respiration; 2) the sources from where the reactants are obtained for cellular reaction; 3) sugar breakdown that provides energy in the form of ATP; 4) lipids and protein also breakdown to provide ATP.
openaire   +1 more source

Metabolomics in cancer research and emerging applications in clinical oncology

Ca-A Cancer Journal for Clinicians, 2021
Daniel R Schmidt, David G Kirsch, Caroline A Lewis   +2 more
exaly