adenosine 5 monophosphate/hypoxia

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Adenosine 5'-Monophosphate Protects From Hypoxia By Lowering Mitochondrial Metabolism and Oxygen Demand.

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Ischemia and reperfusion injury following severe trauma or cardiac arrest are major causes of organ damage in intensive care patients. The brain is particularly vulnerable because hypoxia rapidly damages neurons due to their heavy reliance on oxidative phosphorylation. Therapeutic hypothermia can

Chronic intermittent hypoxia induces cardiac hypertrophy by impairing autophagy through the adenosine 5'-monophosphate-activated protein kinase pathway.

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Autophagy is tightly regulated to maintain cardiac homeostasis. Impaired autophagy is closely associated with pathological cardiac hypertrophy. However, the relationship between autophagy and cardiac hypertrophy induced by chronic intermittent hypoxia (CIH) is not known. In the present study, we

Immunogold localization of adenosine 5'-monophosphate-specific cytosolic 5'-nucleotidase in dog heart.

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Adenosine has a major regulatory function in the heart and many tissues. Our previous work showed that a cytosolic (not a membrane, as previously hypothesized) 5'-nucleotidase from dog heart has the kinetic properties consistent with it being the enzyme responsible for adenosine formation from

Diosmetin alleviates hypoxia‑induced myocardial apoptosis by inducing autophagy through AMPK activation

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Diosmetin has shown great potential in the control of several diseases. The aim of the present study was to evaluate the role of diosmetin as a candidate agent for the treatment of myocardial infarction which was mainly caused by hypoxia. The model of hypoxia‑injured myocardial cells was established

Metabolic and contractile effects of anoxia on the rabbit urinary bladder.

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The in vitro metabolic and contractile effects of anoxia and glucose deprivation on the rabbit urinary bladder were studied. The exposure of isolated strips of rabbit urinary bladder to a glucose deficient medium equilibrated with nitrogen rather than with oxygen resulted in 1) a rapid decrease in

MicroRNA-338-5p alleviates cerebral ischemia/reperfusion injury by targeting connective tissue growth factor through the adenosine 5'-monophosphate-activated protein kinase/mammalian target of rapamycin signaling pathway.

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Cerebral ischemia/reperfusion (CIR) injury could lead to the function of brain cell disorder and cerebral infarction. MicroRNAs (miRNAs) have been reported to participate in the progression and protection of CIR injury. Thus, our study aimed to investigate the functional effects of microRNA-338-5p

Hypoxia Induces Changes in AMP-Activated Protein Kinase Activity and Energy Metabolism in Muscle Tissue of the Oriental River Prawn Macrobrachium nipponense.

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Hypoxia has important effects on biological activity in crustaceans, and modulation of energy metabolism is a crucial aspect of crustaceans' ability to respond to hypoxia. The adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) enzyme is very important in cellular energy homeostasis;

Myocardial ATP synthesis and mechanical function following oxygen deficiency.

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The relationship between oxygen deficiency-reduced high energy phosphate levels and their resynthesis upon return to aerobic conditions was investigated in the isolated perfused rat heart. Any net adenosine triphosphate (ATP) hydrolysis during anoxia tended to impair ATP resynthesis with subsequent

AMPK activation serves a critical role in mitochondria quality control via modulating mitophagy in the heart under chronic hypoxia.

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Mitochondrial biogenesis is one of the generally accepted regulatory mechanisms in the heart under chronic hypoxia. The precise quantity and quality control of mitochondria is critical for the survival and function of cardiomyocytes. Mitochondrial autophagy, also known as mitophagy, which

Ginsenoside Rb1 Ameliorates Autophagy of Hypoxia Cardiomyocytes from Neonatal Rats via AMP-Activated Protein Kinase Pathway.

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OBJECTIVE To investigate whether ginsenoside-Rb1 (Gs-Rb1) improves the CoCl-induced autophagy of cardiomyocytes via upregulation of adenosine 5'-monophosphate-activated protein kinase (AMPK) pathway. METHODS Ventricles from 1- to 3-day-old Wistar rats were sequentially digested, separated and

Adenosine 5'-monophosphate-activated protein kinase and p38 mitogen-activated protein kinase participate in the stimulation of glucose uptake by dinitrophenol in adult cardiomyocytes.

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During metabolic stress, such as ischemia or hypoxia, glucose becomes the principal energy source for the heart. It has been shown that increased cardiac glucose uptake during metabolic stress has a protective effect on cell survival and heart function. Despite its physiological importance, only

Effect of aligeron and cinnarizine in models of general and local depression of the cortical bioelectrical activity in cats.

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The effect of aligeron (5 mg/kg i.v.) and cinnarizine (10 mg/kg i.v.) on general and local depression of cortical bioelectrical activity was studied in acute experiments on cats. Asphyxic anoxia and hypoventilation hypoxia were used as models of general depression. Local depressions were caused by

HIF-1α Mediates Osteoclast-Induced Mandibular Condyle Growth via AMPK Signaling

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During the mandibular condylar growth, the absorption of calcified cartilage matrix induced by osteoclasts is crucial for the continuous endochondral osteogenesis. Meanwhile, recent studies showed that subchondral bone resided within the low-oxygen microenvironment, and our previous study revealed

The role of adenosine triphosphate in migraine.

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Classical migraine is associated with two distinct phases; an initial vasoconstriction followed by vasodilatation. The "purinergic" hypothesis for migraine was originally put forward in 1981 as a basis for the reactive hyperaemia and pain during the headache phase. It was suggested that adenosine

Hypoxanthine-guanine phosphoribosyltransferase and inosine 5'-monophosphate dehydrogenase activities in three mammalian species: aquatic (Mirounga angustirostris), semi-aquatic (Lontra longicaudis annectens) and terrestrial (Sus scrofa).

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Aquatic and semiaquatic mammals have the capacity of breath hold (apnea) diving. Northern elephant seals (Mirounga angustirostris) have the ability to perform deep and long duration dives; during a routine dive, adults can hold their breath for 25 min. Neotropical river otters (Lontra longicaudis

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