Adenosine (ADO) increases oxygen utilization efficiency in hypoxemia-perfused myocardium*1

1992 ◽  
Vol 24 ◽  
pp. S8
Author(s):  
S LEE
Keyword(s):  
Utilization Efficiency ◽  
Oxygen Utilization

Improved Oxygen Dissolution Control for Oxygen Activated Sludge

1988 ◽  
Vol 20 (4-5) ◽  
pp. 101-108 ◽  
Author(s):  
R. C. Clifft ◽  
M. T. Garrett
Keyword(s):  
Activated Sludge ◽  
Control Method ◽  
Control Strategies ◽  
Cost Savings ◽  
Utilization Efficiency ◽  
Oxygen Production ◽  
Oxygen Utilization ◽  
Potential Cost ◽  
Oxygen Dissolution ◽  
The City

Now that oxygen production facilities can be controlled to match the requirements of the dissolution system, improved oxygen dissolution control can result in significant cost savings for oxygen activated sludge plants. This paper examines the potential cost savings of the vacuum exhaust control (VEC) strategy for the City of Houston, Texas 69th Street Treatment Complex. The VEC strategy involves operating a closed-tank reactor slightly below atmospheric pressure and using an exhaust apparatus to remove gas from the last stage of the reactor. Computer simulations for one carbonaceous reactor at the 69th Street Complex are presented for the VEC and conventional control strategies. At 80% of design loading the VEC strategy was found to provide an oxygen utilization efficiency of 94.9% as compared to 77.0% for the conventional control method. At design capacity the oxygen utilization efficiency for VEC and conventional control was found to be 92.3% and 79.5%, respectively. Based on the expected turn-down capability of Houston's oxygen production faciilities, the simulations indicate that the VEC strategy will more than double the possible cost savings of the conventional control method.

scholarly journals Fasting promotes acute hypoxic adaptation by suppressing mTOR-mediated pathways

2021 ◽  
Vol 12 (11) ◽  
Author(s):  
Ruzhou Zhao ◽  
Xingcheng Zhao ◽  
Xiaobo Wang ◽  
Yanqi Liu ◽  
Jie Yang ◽  
...  
Keyword(s):  
Acute Hypoxia ◽  
Survival Rates ◽  
The Body ◽  
Utilization Efficiency ◽  
Ros Generation ◽  
Oxygen Utilization ◽  
Mtor Inhibition ◽  
Atp Production ◽  
Hypoxic Adaptation ◽  
Hypoxic Tolerance

AbstractRapid adaptation to a hypoxic environment is an unanswered question that we are committed to exploring. At present, there is no suitable strategy to achieve rapid hypoxic adaptation. Here, we demonstrate that fasting preconditioning for 72 h reduces tissue injuries and maintains cardiac function, consequently significantly improving the survival rates of rats under extreme hypoxia, and this strategy can be used for rapid hypoxic adaptation. Mechanistically, fasting reduces blood glucose and further suppresses tissue mTOR activity. On the one hand, fasting-induced mTOR inhibition reduces unnecessary ATP consumption and increases ATP reserves under acute hypoxia as a result of decreased protein synthesis and lipogenesis; on the other hand, fasting-induced mTOR inhibition improves mitochondrial oxygen utilization efficiency to ensure ATP production under acute hypoxia, which is due to the significant decrease in ROS generation induced by enhanced mitophagy. Our findings highlight the important role of mTOR in acute hypoxic adaptation, and targeted regulation of mTOR could be a new strategy to improve acute hypoxic tolerance in the body.

scholarly journals Improved exercise capacity in cyclophilin‐D knockout mice associated with enhanced oxygen utilization efficiency and augmented glucose uptake via AMPK‐TBC1D1 signaling nexus

2019 ◽  
Vol 33 (10) ◽  
pp. 11443-11457 ◽  
Author(s):  
Jeejabai Radhakrishnan ◽  
Alvin Baetiong ◽  
Harrison Kaufman ◽  
Michelle Huynh ◽  
Angela Leschinsky ◽  
...  
Keyword(s):  
Glucose Uptake ◽  
Exercise Capacity ◽  
Knockout Mice ◽  
Utilization Efficiency ◽  
Cyclophilin D ◽  
Oxygen Utilization

Recovery of oxygen utilization efficiency after global myocardial ischemia

1991 ◽  
Vol 52 (5) ◽  
pp. 1063-1068 ◽  
Author(s):  
Satoshi Furukawa ◽  
Gerhard Kreiner ◽  
Joseph E. Bavaria ◽  
James T. Streicher ◽  
L.Henry Edmunds
Keyword(s):  
Myocardial Ischemia ◽  
Utilization Efficiency ◽  
Oxygen Utilization

scholarly journals Association of Bolus Feeding With Splanchnic and Cerebral Oxygen Utilization Efficiency Among Premature Infants With Anemia and After Blood Transfusion

2020 ◽  
Vol 3 (2) ◽  
pp. e200149
Author(s):  
Kiran Kumar Balegar V ◽  
Madhuka Jayawardhana ◽  
Andrew J. Martin ◽  
Philip de Chazal ◽  
Ralph K. H. Nanan
Keyword(s):  
Blood Transfusion ◽  
Premature Infants ◽  
Utilization Efficiency ◽  
Cerebral Oxygen ◽  
Oxygen Utilization

Elevated ROS depress mitochondrial oxygen utilization efficiency in cardiomyocytes during acute hypoxia

2020 ◽  
Vol 472 (11) ◽  
pp. 1619-1630
Author(s):  
Ru-Zhou Zhao ◽  
Xiao-Bo Wang ◽  
Shuai Jiang ◽  
Ning-Yu Ru ◽  
Bo Jiao ◽  
...  
Keyword(s):  
Acute Hypoxia ◽  
Utilization Efficiency ◽  
Oxygen Utilization
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