Graded intracellular acidosis produces extensive and reversible reductions in the effective free energy change of ATP hydrolysis in a molluscan muscle

Journal of Comparative Physiology B

Volumn 165, Issue 3, 1995, Pages 203-212

  Combs, C A ^a   Ellington, W R ^a  

^a FLORIDA STATE UNIVERSITY   (United States)

Author keywords

Acidosis; Busycon; Energetics; Mollusc; Muscle

Indexed keywords

ADENOSINE TRIPHOSPHATE; DIMETHADIONE; MAGNESIUM;

ACIDOSIS; ANIMAL; ARTICLE; DRUG EFFECT; HYDROLYSIS; METABOLISM; MOLLUSC; MUSCLE;

ACIDOSIS; ADENOSINE TRIPHOSPHATE; ANIMAL; DIMETHADIONE; HYDROLYSIS; MAGNESIUM; MOLLUSCA; MUSCLES; SUPPORT, U.S. GOV'T, NON-P.H.S.;

EID: 0029199356     PISSN: 01741578     EISSN: 1432136X     Source Type: Journal    
DOI: 10.1007/BF00260811     Document Type: Article

References (69)

1. Hypercapnic acidosis and increased H2PO4− concentration do not decrease force in cat skeletal muscle
2. Standard Gibbs free energy, enthalpy, and entropy changes as a function of pH and pMg for several reactions involving adenosine phosphates
3. Low extracellular magnesium induces intracellular free Mg deficits, ischemia, depletion of high-energy phosphates and cardiac failure in intact working rat hearts: 31P-NMR study
4. Mitochondrial transmembrane potential and pH gradient during anoxia
5. Effects of pH variations on the kinetics of growth and energy metabolism in cultured T-lymphoma cells: a microcalorimetric study
6. Influence of Mg2+ on cardiac performance, intracellular free Mg2+ and pH in perfused hearts as assessed with 31P nuclear magnetic resonance spectroscopy
7. 31P Nuclearmagnetic-resonance studies of energy metabolism in tissue from the marine invertebrate Tapes watlingi
8. Cytosolic free calcium regulation in response to acute changes in intracellular pH in vascular smooth muscle
9. Changes in intracellular Mg adenosine triphosphate and ionized Mg2+ during blood storage: detection by 31P nuclear magnetic resonance spectroscopy
10. Effects of metabolic acidosis on viability of cells exposed to anoxia
11. Magnesium and reperfusion on ischemic rat heart as assessed by 31P-NMR
12. Characterization of the membrane ion currents of a model molluscan muscle, the accessory radula closer muscle of Aplysia californica. I. Hyperpolarization-activated currents
13. Metabolic regulation via intracellular pH
14. Metabolic correlates of intracellular pH change during rapid contractile activity in a molluscan muscle
15. Control of glycolysis during contractile activity in the phasis adductor muscle of the bay scallop, Argopecten irradians concentricus: identification of potential sites of regulation and a consideration of the control of octopine dehydrogenase
16. Mechanical relaxation rate and metabolism studied in fatiguing muscle by phosphorus nuclear magnetic resonance
17. Intracellular free magnesium in the muscle of an osmoconforming marine invertebrate: measurement and effect of metabolic and acid-base perturbations
18. Metabolic impact of experimental reductions of intracellular pH in molluscan cardiac muscle
19. Phosphocreatine represents a thermodynamic and functional improvement over other muscle phosphagens
20. Studies of intracellular pH regulation in cardiac myocytes from the marine bivalve mollusk, Mercenaria campechiensis
21. Mechanisms of magnesium transport
22. Intracellular pH modulates cytosolic free magnesium in cultured chicken heart cells
23. pH and temperature effects on kinetics of creatine kinase in aqueous solution and in isovolumetric perfused heart. A 31P nuclear magnetization transfer study
24. Phosphorus nuclear magnetic resonance studies of energy metabolism in molluscan tissues: intracellular pH change and the qualitative nature of anaerobic end products
25. The biological role of octopine in the squid, Loligo vulgaris (Lamarck)
26. 31P nuclear magnetic resonance measurements of intracellular pH in giant barnacle muscle
27. Cytosolic free magnesium in stimulated, hypoxic, and underperfused rat heart
28. Protons and anaerobiosis
29. Free calcium at rest during “catch” in single smooth muscle cells
30. Low myoplasmic Mg2+ potentiates calcium release during depolarization of frog skeletal muscle fibers
31. 31P-NMR of high-energy phosphates in perfused rat heart during metabolic acidosis
32. Influence of intracellular pH on reduction of energy metabolism during hypoxia in the lugworm Arenicola marina
33. Dependence of intracellular free calcium and tension on membrane potential and intracellular pH in single crayfish muscle fibres
34. High energy phosphate of the myocardium: concentration versus free energy change
35. Efficiency of energy conversion from metabolic substrates to ATP and mechanical and chemiosmotic energy
36. Free energy change of ATP-hydrolysis: a causal factor of early hypoxic failure of the myocardium?
37. Hypercapnic and hypocapnic hypoxia in the lugworm Arenicola marina: a 31P NMR study
38. Membrane permeability to molecular and ionic forms of DMO in barnacle muscle
39. Effects of pH and free Mg2+ on the Keq of the creatine kinase reaction and other phosphate hydrolyses and phosphate transfer reactions
40. A linear model of muscle respiration explains monoexponential phosphocreatine changes
41. Effect of decreased pH on force and phosphocreatine in mammalian skeletal muscle
42. Testing models of respiratory control in skeletal muscle
43. Effects of carbon dioxide on tetanic contraction of frog skeletal muscles studied by phosphorus nuclear magnetic resonance
44. It is diprotonated inorganic phosphate that depresses force in skinned skeletal muscle fibers
45. Thermodynamic data for the hydrolysis of adenosine triphosphate as a function of pH, Mg2- ion concentration, and ionic strength
46. Multicompartmental analyses of acid-base and metabolic homeostasis during anaerobiosis: invertebrate and lower vertebrate examples
47. Anaerobiosis and acid-base status in marine invertebrates: a theoretical analysis of proton generation by anaerobic metabolism
48. Acidbase regulation in exercising squid (Illex illecebrosus, Loligo pealeii)
49. Effect of changes of pHi on in tracellular calcium in a smooth muscle-like cell line
50. Intracellular pH
51. The value of ΔGoobs for the hydrolysis of ATP
52. Fatigue and Phosphocreatine depletion during carbon dioxide-induced acidosis in rat muscle
53. Adenine nucleotide and IMP contents of the quadriceps muscle in man after exercise
54. Regulation of intracellular free Mg2+ and contraction in single adult mammalian cardian myocytes
55. Protein assembly and metabolic regulation: Physiological and evolutionary perspectives
56. Phosphofructokinase activity and acidosis during short-term tetanic contractions
57. Effect of temperature on the creatine kinase equilibrium
58. Subcellular electrolyte alterations during progressive hypoxia and following reoxygenation in isolated neonatal rat ventricular myocytes
59. Muscle fatique in frog semitendinosus: role of intracellular pH
60. Intracellular pH recovery during respiratory acidosis in perfused hearts
61. Acid-base balance in the sea mussel Mytilus edulis. II. Effects of hypoxia and air exposure on intracellular acid-base balance
62. Coordination of metabolism and intracellular acid-base status: ionic regulation and metabolic consequences
63. Cellular mechanisms of fatique in skeletal muscle
64. Intracellular buffering capacity in molluscan muscle: superfused muscle versus homogenates
65. Effects of extracellular pH and d-lactate efflux on regulation of intracellular pH during isotonic contractions in a molluscan muscle: a 31P-NMR study
66. In vitro calorimetric studies relating to the interpretation of muscle heat experiments
67. The regulation of intracellular pH estimated by 31P-NMR spectroscopy in the anterior byssus retractor muscle of Mytilus edulis L.
68. Contractile dysfunction during metabolic acidosis: role of impaired energy metabolism