Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:P20020 (adenosine triphosphatase)
 3,299 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We investigated the response of mitochondrial function and microsomal adenosine triphosphatase (ATPase) activity in rat liver tissue subjected to in vitro ischemia at either 0 degree C to 4 degrees C or 37 degrees C for 30 to 60 minutes. Mitochondrial coupling, expressed as respiratory control index, was preserved at up to 60 minutes' cold ischemia. However, respiratory control index was decreased significantly from control by 30 minutes of warm ischemia. Both microsomal magnesium-activated ATPase and sodium-potassium ATPase activity were significantly increased by 60 minutes of warm ischemia yet were unaltered by 60 minutes of ischemia at 0 degree C to 4 degrees C. Warm ischemia produces deleterious effects on energy-generating (mitochondria) and energy-utilizing (ATPase) activity. Hypothermia provides a significant prolongation of cellular viability in ischemic tissue in terms of bioenergetic status. In addition to organ procurement and transplantation, hypothermic cytoprotection may prove valuable in areas such as shock, ischemia, and other clinical conditions of compromised visceral perfusion.
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PMID:Hepatic microsomal adenosine triphosphatase and mitochondrial function. Response to cold and warm ischemia. 295 19

Slowing of nerve conduction, a hallmark of both experimental and human diabetic neuropathy, is improved or corrected by aldose reductase inhibitors such as sorbinil. Animal experiments suggest that a myo-inositol-related defect in nerve sodium-potassium adenosine triphosphatase (ATPase) is responsible for the acute reversible slowing of nerve conduction in diabetes mellitus. This myo-inositol-related defect is at present viewed as a cyclic metabolic defect. Aldose reductase inhibitors have been shown to restore to normal both the myo-inositol content and the sodium-potassium ATPase activity of nerve. This suggests that the acute effects of aldose-reductase inhibitors on nerve conduction in both diabetic animals and human patients may be modified by the correction of an underlying myo-inositol-related defect of nerve sodium-potassium ATPase. Furthermore, this myo-inositol-related defect may contribute to other biochemical, functional and structural abnormalities of diabetic peripheral neuropathy.
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PMID:Sorbitol, myo-inositol and sodium-potassium ATPase in diabetic peripheral nerve. 302 50